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1. 1 eee es 1 2 Your Responsibilities asa User e geese ee ee 1 2 ATTENTION Read this so no one gets hurt 1 3 How to Use the Lockout Device 1 6 UGE048 0399 SCE SCX Combination Puller Cutter PURPOSE OF THE USER GUIDE How THE USER GUIDE IS ORGANIZED YOUR RESPONSIBILITY As A USER 1 2 INTRODUCTION This User Guide describes the Conair Combination Puller Cutter and explains step by step how to install operate main tain and repair this equipment Before installing this product please take a few moments to read the User Guide and review the diagrams and safety infor mation in the instruction packet You also should review man uals covering associated equipment in your system This review won t take long and it could save you valuable instal lation and operating time later Symbols have been used to help organize the User Guide and call your attention to important information regarding safe installation and operation A Symbols within triangles warn of conditions that could be hazardous to users or could damage equipment Read and take precautions before proceeding Numbers within shaded squares indicate tasks or steps to be performed by the user A diamond indicates the equipment s response to an action performed by the user An open box marks items in a checklist eu A shaded circle marks items in a list You must be familiar with all safety proced
2. A Height B Height to centerline 2 50 8 40 1016 40 1016 40 1016 40 1016 40 1016 C Width 60 1524 66 1676 66 1676 80 2032 80 2032 D Length 24 614 24 614 24 614 24 614 24 614 Belt width 3 8 9 5 3 76 4 102 4 102 6 152 6 152 Belt traction length 20 508 26 660 26 660 39 991 39 991 Feed opening 4 102 5 Weight Ib kg Installed 1100 499 1200 545 1200 545 1350 613 1350 613 Shippin 1300 590 1450 658 1450 658 230V 60Hz 24 26 460V 60Hz 208V 60Hz 27 29 575V 60Hz 10 Cutter Control LE 650 650s LE 650 650s LE 650 650s LE 650 650s LE 650 650s LE 850 LE 850 LE 850 LE 850 LE 850 Optional CUTTER HEADS Standard Aluminum 2 position Optional Aluminum 4 position Stainless Steel 2 position Stainless Steel 4 position UGE048 0399 SCE SCX Combination Puller Cutter DESCRIPTION 2 7 OPTIONAL EQUIPMENT 2 8 DESCRIPTION Digital belt gap sensor and readout puller This option allows the operator to set a zero point then mea sure belt gap in thousandths relative to this point Pneumatic upper belt actuator puller An air cylinder assembly that can raise and lower the upper belt boom assembly is available on 426 and 639 models Control can be either manual or electrical Remote belt speed control puller This option allows puller speed control by an external source Electronic totalizing footage counter puller This option allows the o
3. User Guide Combination Puller Cutter SCE and SCX Models CONAIR The Conair Group Inc One Conair Drive Pittsburgh PA 15202 Ee Phone 412 312 6000 814 amp Fax 412 312 6227 UGE048 0399 Record your equipment s It is important to record the model and serial number s of model and serial num your equipment and the date you received it in the User ber s and the date you Guide Our service department uses this information along received it in the spaces with the manual number to provide help for the specific provided equipment you installed Keep this User Guide and all manuals engineering prints and parts lists together for documentation of your equipment DISCLAIMER The Conair Group Inc shall not be liable for errors contained in this User Guide or for incidental consequential dam ages in connection with the furnishing performance or use of this information Conair makes no warranty of any kind with regard to this information including but not limited to the implied warranties of merchantability and fitness for a particular purpose Copyright 1999 THE CONAIR GROUP INC All rights reserved INTRODUCTION 2 eee eee ee dT TABLE OF Purpose of the User Guide 2 0 0i0 s02ceedeeaeed ees 1 2 How the Guide is Organized 2 5 sda weadearn whee iagewe 1 2 CONTENTS Your Responsibilities asa User 0 0 1 2 ATTENTION Read this so no one gets hurt 1 3 How to Use the Lockout Devi
4. 2 Quickly press Set twice The current prescale value displays in the Display window Scale displays in the Total window 3 Adjust the prescale value using the Adjustment arrows NOTE the decimal place cannot be moved 4 Continue adjusting and cutting pieces until the length is within your requirements The adjustment process is done by trial and error NOTE The cutter must be in the stop position to change the prescale value 5 Press the Set button When all modes are set press the Set button to accept the new values UGE048 0399 SCE SCX Combination Puller Cutter SETTING THE PRESCALE VALUE OPERATION 4 15 CHECKING CUT QUALITY STARTING THE COMBINATION PULLER CUTTER 4 16 OPERATION 1 Press the Reset Test button and observe the move ment of the cutter blade The cutter head makes a single rotation and the blade moves through the cutter bushings without interference 2 Insert a piece of extrudate through the cut ter bushings 3 Press the Reset Test button A single cut is made at the preset blade speed NOTE this works even if Cut On Off is off 4 Inspect the cut If necessary adjust the blade design or blade speed SCX only See Appendix All About Cutter Blades page B 1 If you have not already done so perform daily maintenance check power up the puller cutter select cutting mode and blade speed SCX only and make
5. coatings generally cause some slight loss of sharpness 0 025 inch material is available which covers many applications without the need for secondary grinding operations D 2 is another excellent tool steel with an HRC range of 58 60 It is tougher than M 2 but has slightly less wear resistance Its minimum thickness 0 035 inch and the need for special ized grinding materials make it a relatively expensive materi al It is the material of choice for cutting Kevlar reinforced hose CPM 10 V is a form of carbide developed especially for the high speed punch industry With an HRC of 60 62 and a toughness that far exceeds D 2 it is by far the best cutting blade material Because its minimum thickness is 0 035 inch and it requires the use of diamond grinding wheels CPM 10 V is the most expensive of the blade materials UGE048 0399 CUTTER BLADE SELECTION AND USE APPENDIX B 1 CUTTER BLADE SELECTION AND USE B 2 APPENDIX Blade Design Straight edge knives have a straight cutting surface A chop ping action which has cutting forces parallel to the cut is typically obtained with straight edge blades Because the blade is mounted on a rotary arm some slicing action which has additional force vectors at various angles to the cutting edge is obtained but generally not through the entire cutting action If a slicing action is required the angle of attack can be modified by mounting the blade on a 30 45 degree angle as close
6. see pages 6 20 and 6 21 SCE SCX Combination Puller Cutter TROUBLESHOOTING 6 1 5 RESTORING A WARNING This procedure restores the M Trim control to DEFAU LT the factory default settings Any user entered MEMORY parameters or programming will be erased To restore default memory settings SETTINGS cee 1 Turn OFF power to the puller 2 While simultaneously pressing the Clear and the 7 on the numeric keypad turn the power ON The factory default settings are restored The M Trim control performs the power up routine described in the Operation section Powering Up page 4 9 RESTORING Set any user specific memory settings after you have restored the default memory settings Using the Puller Control Settings UseER SPECIFIC found on the tables on pages F 1 and F 2 restore your control to it s normal operating state MEMORY SETTINGS 1 Open the flap at the bottom of the M Trim control Press the Control Select button from the tables on pages F 1 and F 2 2 3 Enter the desired two digit code number 4 Press the Enter button The two digit code displays in the lower digital dis play The current parameter value displays in the upper digital display The numeric keypad is enabled If necessary use the numeric keypad to enter a new value CAUTION Press the Enter button within 10 seconds to accept the new number Otherwise the parame te
7. will typically show an arc or S pattern which can be attrib uted to compression of the part as the blade passed through Rigid materials such as rigid PVC and styrene will tend to fracture during cutting The cut surface changes from glossy to dull and finally becomes whitened and rough Whitening occurs when cutting changes to fracturing the cut begins to extend in front of the cutting blade which acts as a wedge At this point you can only hope the fracture is controlled allow ing for a square cut Friction and heat during cutting Because most rotary knife cutters don t travel with the flow of the extrusion line forward motion is interrupted as the blade passes through the plastic tube or profile This interruption causes friction which generates heat in the cutting blade As the temperature of the blade increases plastic is melted at the cut site This melted plastic can adhere to and coat the cutting blade especially on the upstream side and be transferred to the next part in the form of hairs or tissue like film This will be especially noticeable on the top inside of the tube or pro file UGE048 0399 BLADE AND BUSHING LUBRICATION APPENDIX D 1 If the blade has a rough surface where the extrudate rubs B LADE AND against it material will accumulate on the blade in a cheese B grater fashion This scratched material will also be passed USHING from the blade to the next cut and be seen as hairs or flakes Lu B RICATION So
8. 0 005 inch gap on the downstream bushing to allow the blade to slightly move with the extrudate during the cutting cycle and not cause excessive frictional heat which actually melts the extrudate NOTE Blade bushing lubrication can also help to solve this problem UGE048 0399 ALL ABOUT CUTTER BUSHINGS APPENDIX C 5 Blade and bushing lubrication can nearly always improve the quality of cutting B LADE AND Description of the cutting process BUSHING Unlike sawing a rotary knife cutter displaces material rather Lu B RICATION than removing it When the knife blade first contacts the extrudate it pushes it against the opposite side of the cutter bushings If there is too much clearance the extrudate may crack or distort before cutting even begins Tubing may devel op two distinctive marks related to the compression of the tube Once the blade penetrates the part material is displaced to either side of the blade This displacement will vary in degree and visibility depending on the type of material temperature blade thickness blade style and blade speed As the material is displaced heat is generated and passed to the blade surface Flexible materials flexible PVC urethanes and even LDPE will generally compress during cutting leaving little or no sign of displacement The cut will appear uniformly glossy and free of fracture However a closer look will show very fine lines on the cut face With flexible materials these lines
9. Make sure power is supplied to the equipment O Make sure that all connectors and wires within and between the cutter and related components have been installed correctly O Check the troubleshooting guide of this manual for a solu tion O Thoroughly examine the instruction manual s for associat ed equipment especially controls Each manual may have its own troubleshooting guide to help you O Check that the equipment has been operated as described in this manual O Check accompanying schematic drawings for information on special considerations SERVICE INFORMATION WE RE HERE TO HELP How To CONTACT CUSTOMER SERVICE BEFORE YOU CALL Additional manuals and prints for your Conair equip ment may be ordered through the Customer Service or Parts Pepa gine nis for a nominal ee APPENDIX A 1 EQUIPMENT GUARANTEE PERFORMANCE WARRANTY WARRANTY LIMITATIONS APPENDIX A 2 Conair guarantees the machinery and equipment on this order for a period as defined in the quotation from date of shipment against defects in material and workmanship under the normal use and service for which it was recom mended except for parts that are typically replaced after normal usage such as filters etc Conair s guarantee is limited to replacing at our option the part or parts deter mined by us to be defective after examination The cus tomer assumes the cost of transportation of the part or parts to and fr
10. Preventative Maintenance Schedule 5 4 Tnspecting Cutter Blades 4 cinic2edanemeree ussid ess 5 6 Inspecting Blade Hardware 2 5 6 Inspecting Cutter Bushing Screws lt v s ieedee e4 3 5 7 Checking the Closure Latch 2 cuspase pace eae ech eg sd wa 5 7 Checking Floor Locks 2 00on3ete6se3eeene34u5e ios 5 7 Cleaning the Lubrication Tray ifs 64 heseea edededies 5 8 Lubricating the Slide Rail seessi0 a dacbsseedes 5 8 Checking Grease Locations 22 cnc asa eekwe sa aeaked ed as 5 9 Adjusting the Cutter Proximity Switches 5 10 Replacing Motor Brushes 2 4 04 2044 dededereacowans 4 5 11 Checking Electrical Connections 0000 5 12 Testing Belt Tewsion c0 esdeteuene tex iaa aces 5 14 Checking the Belt Gap 24 4 lt 4 2e ei0 cbebsarekers 5 16 Replacing Belts s accs ndane edo bwecee cade saad wees 5 18 Checking Torq e i 5 ss6sesu deen Sede idiesais sees 5 20 TROUBLESHOOTING 222022 6 1 Before Beginning 2i25 240s shoe pee bees eeae eve gens 6 2 A Few Words of Caution 2 0 24 decease eden Sev ienas 6 2 Identify the Cause of a Problem 6 4 Puller Operation Problems 042952 4 lt xeseededeen bees 6 5 Cutter Operation Problems 22 02 0scs0e oes gsewewens 6 7 Product Quality Problems 24 20428 devue dgea sees 6 11 Restoring Default Memory Settings 6 16 Restoring User Specific Memory Settings 6 16 Replacing Safety
11. With flexible and or sticky materials this can improve both cut quality and cut to length accuracy The last method of blade lubrication and the oldest is the blade wipe system Felt sponge or some other absorbent material is mounted so the rotary knife blade will pass through it with interference before making a cut Typically a gravity drip or wick system is used to keep the absorbent material wet with lubricant These systems not only lubricate the blade but also wipe off residue before each cut However the operator must constantly observe the condition of the pads as they wear quickly and lose their function Another concern especially in medical applications is what happens to wear particles from the pads This material frequently ends up on the blade itself and is then transferred to the very product it is meant to pro tect from contamination UGE048 0399 BLADE AND BUSHING LUBRICATION BLADE AND BUSHING LUBRICATION APPENDIX D 3 When considering puller performance an important concern is the type of puller belt To select the proper belt material you must consider the extrudate s tendency to deform under pres sure For example thin wall profiles and tubing are prone to deformation lengths to de CHOOSING BELT MATERIALS so you need lower pressures and longer traction liver the required pulling force without deforma tion and slippage Various belt materials are available natural rubber neoprene ureth
12. a general rule is to make the length of the cutting bushings equal to two times the largest out side dimension NOTE In the case of full profile cutter bushings where maximum support is offered the bushing length may be shortened depending on actual clearance Be sure to have a lead in angle machined into the entrance of the upstream cutter bushing The transition from the bore to the lead in angle should not be abrupt as it to can cause variable drag C 4 APPENDIX ALL ABOUT CUTTER BUSHINGS UGE048 0399 Adjusting the cutter bushing gap ALL ABOUT If the bushing gap is too big material is dragged down between the bushings creating a burr especially with flexibles C UTTER This may lead to jamming within the bushings where the Bu SHINGS upstream side of the cut extrudate actually hits against the downstream bushing surface This is especially apparent with flexibles with non concentric walls where a slight bow is pre sent Locate the downstream bushing such that it touches the blade without deflecting it Lock it in place and rotate the blade to check proper gap Locate the upstream cutter bushing with 0 001 0 002 inch of the blade and lock it in place Rotate the blade through the set bushings to insure proper gap NOTE Because blades are rarely perfectly flat it is possible that a swish ing sound will be heard If hairs are present on only the upstream cut end of a tube or profile it may be necessary to allow a 0 002
13. and ables cutting cuts sample pieces RESET clears the counter TOTAL ON OFF counts the number of cuts TOTAL displays mes sages during startup and programming Length displays startup messages length time as well as error messages LE 650s Cutt r Con rol e Cut Reset On Off Test Timer Follower CG Cut Motor c Encoder A Product Flywheel Park Guard Encoder B Encoder d Blade d Start Stop Cutter Cutter Speed Select Cutter Status Cut Mode Adjustment CUTTER STATUS BUTTONS start and stop the servo motor amplifier ADJUSTMENT BUTTONS Lights show you what is currently in use change preset length scale fac tor cutting mode parameters and blade speed SCX only Cut MODE BUTTONS let you choose the cutting mode list ed above the Select button and the blade speed for the SCX or the comp for SCE Detailed description of the Cutter Control begins on page 4 4 4 2 OPERATION SCE SCX Combination Puller Cutter UGE048 0399 THE PULLER CONTROL Four digit display shows setpoint and actual speed Speed butions for enter ing and monitoring speed Numeric keypad to set adjust and change pro gram settings Data Entry buttons to enter and delete data Scroll buttons to adjust display one unit Programming Keypad behind flap for entering and changing program ming code Run 7 Two digit display s
14. be installed adjust ed and serviced by qualified technical person nel who are familiar with the construction oper ation and potential hazards of this type of machine All wiring disconnects and fuses should be installed by qualified electrical technicians in accordance with electrical codes in your region Always maintain a safe ground Do not operate the equipment at power levels other than what is specified on the machine serial tag and data plate Open the combination puller cut ter s electrical enclosure Turn the disconnect dial on the door to the OFF or O position and open the door Insert the main power wire through the knockout in the side of the enclosure Secure the wire with a rubber compression fitting or strain relief Connect the power wires to the terminals indicated on the wiring diagram that came with your machine Check every terminal screw to make sure wires are secure Gently tug each wire If a wire is loose use a screwdriver to tighten the terminal Connect the ground wire to the grounding point shown in the wiring diagram shipped with your unit UGE048 0399 DANGER Sharp blades AY Most injuries caused by knife blades occur INSTALLING THE when the cutter has been turned off Handle blades with care at all times CUTTER Always wear cut resistant gloves when the BL ADES cutting chamber is open and when handling AN blades Always lock out power to the cutter bef
15. between where the bushings go 2 Slide the downstream bushing into position positioning it up to and barely touching the blade using a feeler gauge NOTE the blade should not be deflected 3 Tighten the set screw against the flat side of the bushing to hold the bushing in position gt Location of set screws SCE SCX Combination Puller Cutter UGE048 0399 4 Slide the upstream bushing into position pos MMOUNTING THE tioning it up to but not touching the blade Use feeler eee CUTTER 5 Tighten the set screw against the flat side of the B USHINGS bushing to hold the bushing in position 6 Rotate the cutter head by hand to make sure the bushings did not move and the the blade still passes through the gap between the bushings UGE048 0399 SCE SCX Combination Puller Cutter INSTALLATION 3 9 ADJUSTING 1 Turn the main power disconnect to the off BELT TENSION position 2 Remove the upper and lower belt guards Remove the screws attaching guards to unit four each top bottom front and rear Disconnect the safety cable on the upper guard Lift off and remove guard 3 Check belt tension Use a tension measuring tool Belts should be just tight enough to prevent slipping and the gap between the upper and lower belts should be even across the width of the belt NOTE Loose belts result in belt and product slippage over tigh
16. defaults to either the maximum or the minimum SCE SCX Combination Puller Cutter UGE048 0399 Choose on demand modes Timer Encoder Product for lower speed cutting and continuous modes Flywheel or Follower when making more than 350 cuts per minute Timer Mode cuts based on time When the preset time is reached the cutter control signals the cutter head to rotate and make a cut If the extrudate delivery speed changes the length will also change Encoder Mode monitors the forward movement of the extrudate and signals a cut based on a set number of counts per foot Product Mode uses an electric eye to sense the end of the extrudate and signals a cut Flywheel Mode is a continuous cutting mode you set the speed of the blade available on SCX models only Follower Mode option available on SCX models only is a continuous cutting mode The servo motor automatical ly speeds up or slows down to follow the puller speed UGE048 0399 SCE SCX Combination Puller Cutter CHOOSE THE CUTTING MODE OPERATION 4 13 SETTING THE 1 Be sure that the Cut On Off button is OFF CUTTING MoDE 2 Press the Select button to activate the cutting mode you want A mode is active when the LED next to it is lit Each time you press Select the control activates the next available mode Continue pressing the Select button until you get the mode you want Then go on to the next step 3 Make any additi
17. different blade speeds to obtain the desired cut quality What s needed for a particular application depends on blade style internal heat and blade thickness Speeds as slow as 300 rpm may be required if a curved blade is used with little or no heat Improving cut quality by adding heat to certain materials All rigid extrudates can have their cut quality improved by the addition of heat A few of the most common materials and the respective temperatures are listed below Rigid PVC 110 125 F Styrene ABS 120 135 F Polypropylene 160 200 F It is important to remember that as the temperature approaches the glassification zone the degree of support offered by the bushing becomes more important UGE048 0399 CUTTER BLADE SELECTION AND USE APPENDIX B 3 CUTTER BLADE SELECTION AND USE B 4 APPENDIX Calculating Blade Interruption Blade interruption is the length of time which the blade interrupts the extrudate during the cutting process Knowing blade interruption allows you to optimize blade speed and design for specific applications You can calculate blade interruption for your application if you know the cutting blade width blade speed cutter rpm extrudate cross section The rotary knife cut path circumference is fixed for each cut ter model SCE SCX Bushing Knife Cut Path Knife Cut Path Model Diameter Diameter Circumference 2 2 25 11 34 6 3 3 25 12 37 7 4 4 25 13 40 8 5 5 25
18. equipment express or implied arising by operation of law course of dealing usage of trade or otherwise including but not limited to the implied warranties of merchantability and fitness for a particular purpose WARRANTY INFORMATION UGE048 0399 Cutter blade characteristics such as material design and C UTTER B L ADE thickness can have a large effect on cut quality Blade materials SELECTION AND USE Blue tempered spring steel is most commonly used because of its cost and availability over a wide range of thicknesses 0 010 0 062 inch It is a very tough material with an HRC value of approximately 48 51 and fair wear characteristics Razor blade stainless steel is becoming very popular due to its HRC value of 57 58 which leads to improved wear resis tance This material retains good toughness but will chip or break It is available in 0 010 0 062 inch thicknesses Because it is non corrosive stainless steel is a good choice for medical cutting applications and may even be coated with Teflon to enhance cut quality A 2 is a good grade of tool steel with an HRC of 60 Its mini mum thickness 0 031 inch forces the blade manufacturer to grind it down for thinner applications which adds cost A 2 is more wear resistant than stainless but is also more brittle M 2 is an excellent grade of tool steel with an HRC of 63 66 It is one of the best materials for coating with titanium nitride for improved wear resistance However
19. guard The Machine Reset push button should light If the cutter is not working properly at any time turn it off immediately and refer to the Troubleshooting section of this User Guide If you do not encounter any problems proceed to the Operation section 3 1 8 INSTALLATION SCE SCX Combination Puller Cutter UGE048 0399 OPERATION The Cutter Control 4 2 The Puller Control 4 3 Cutter Control Features 4 4 Puller Control Features 4 8 Combination Control Features 4 9 Before Starting 4 10 Powering Up 000002e 4 11 Programming the Puller Speed 4 12 Setting the Blade Speed 4 12 Choosing the Cutting Mode 4 13 Setting the Cutting Mode 4 14 Setting the Prescale Value 4 15 Checking Cut Quality 4 16 Starting the Puller Cutter 4 16 Making Adjustments During Operation 4 17 Making Large Changes to the Puller Speed 4 17 Fine tuning the Puller Speed 4 18 Making a Manual Cut 4 18 Counting the Number of Cuts 4 18 Adjusting Prescale Values 4 19 Temporarily Stopping Cutting 4 19 Stopping Only the Cutter 4 19 Stopping the Puller Cutter 4 20 Shutting Down the Puller Cutter 4 20 UGE048 0399 SCE SCX Combination Puller Cutter THE CUTTER CONTROL Cut ON OFF Reset Test zeros length enables and dis and scale factors
20. is recommend ed that the tests be performed at cut intervals between 0 5 and 5 seconds Do not change the blade speed or the line speed after starting the test To test repeatability 1 Turn on the cutter Performing the test with the cut ter off line shows problems with the cutter performing the test with the cutter on line shows a problem with the puller Place the cutter in any mode except follower mode Press the Cut On Off button the cutter is activat ed automatiocally Press and hold the Move Right button for a minimum of 5 seconds Do 5 Read the results on the display A CO N Repeat the test by pressing the Reset Test Cut button to begin a new sample period To end the Repeatability test press any button except the Reset Test Cut button The LED returns to its normal display SCE SCX Combination Puller Cutter UGE048 0399 Results in Flywheel mode R ESULTS OF The display shows Repeat Test and the park to park PP reading This is the total peak variance of a full revolution of the cutter head The reading is in milliseconds to the third R EPEATABILITY decimal place i e 0 010 is 0 01 milliseconds or 10 microsec TESTING onds If the reading exceeds 9 999 the unit automatically resets the repeatability test displays Over Run and attempts to begin the test again If this occurs the error is too large and there is a fault in the cutter drive that mu
21. of tubes this causes two marks on the tube penetration marks that show where the tube flat tened before the blade actually penetrated it The tighter the bushing bore size to tube size the closer the marks become making them less obvious If the bushing bore is too tight excessive extrudate interrup tion or even jamming may occur In turn this can cause inter nal air blockage in free extruded flexible materials and thus extrudate size fluctuations In the case of rigid profiles or tubes belt puller slippage may occur during the cutting if the bushings are improperly configured This can cause annular rings around the extrudate and size fluctuations For rigid profiles or tubes allow 0 010 0 020 inch clear ance over the OD tolerance Anything tighter than 0 010 inch will be difficult to process For easier startup allow as much as 1 4 inch above a rigid profile because the blade will force the profile to the bottom of the cutting bushing where the shearing action occurs However if perfect squareness is required the clearance above the profile should be minimized to prevent bowing UGE048 0399 ALL ABouT CUTTER BUSHINGS ALL ABOUT CUTTER BUSHINGS APPENDIX C 1 Supportive bushings become more important if heat is ALL ABOUT used to minimize whitening fracturing C UTTER If you are cutting a square or rectangular profile whether B USH l NGS rigid or flexible a round bushing bore will not offer proper support and will o
22. off Handle A blades with care at all times OF CAUTION Always wear cut resistant gloves when the cutting chamber is open and when handling blades Always lock out power to the cutter before opening the cutting chamber Always wait until the cutter head has stopped completely before opening the knife guard Combination puller cutters are equipped with several safety devices to ensure safe operation Never remove or disable these devices to sus tain production Operating without these devices can cause severe injury When the knife guard is opened the knife guard switch stops the cutter and prevents starting the cutter again Two proximity type safety switches prevent operation unless the cutter bushings are in place The Stop button activates a circuit that stops the knife UGE048 0399 SCE SCX Combination Puller Cutter TROUBLESHOOTING 6 3 ID ENTIFY NG THE The Troubleshooting section covers problems directly related to the operation and maintenance of the Combination Puller Cutter This section does not provide solutions to prob CAUSE OF A lems that originate with other equipment Additional trou bleshooting help can be found in manuals supplied with the ROBLEM Pp other equipment The main problems you will see with the Combination Puller Cutters are Puller operation problems which focus on problems that are clearly related to the pullers mechanical compo nents and electrical control system Cu
23. place i e 0 010 is 0 01 milliseconds or 10 microseconds Compare the cut to park CP reading to the CP reading in the other modes There should be very little difference in these readings Compare the cut to cut CC reading to the CC reading in the other modes Since the Encoder and Product modes are influ enced by external signals this reading will reflect the speed stability of the puller UGE048 0399 SCE SCX Combination Puller Cutter TROUBLESHOOTING 6 21 Conair has made the largest investment in customer support in the plastics industry Our service experts are available to help with any problem you might have installing and operating your equipment Your Conair sales representative also can help analyze the nature of your problem assuring that it did not result from misapplication or improper use To contact Customer Service personnel call PARTS amp SERVICE 800 458 1960 i CONAIR 24 HOURS A DAY 7 DAYS A WEEK From outside the United States call 814 437 6861 You can commission Conair service personnel to provide on site service by contacting the Customer Service Department Standard rates include an on site hourly rate with a one day minimum plus expenses If you do have a problem please complete the following checklist before calling Conair O Make sure you have all model serial and parts list num bers for your particular equipment Service personnel will need this information to assist you Q
24. stop cutting light is THE CUTTER off 2 Press Stop Cutter button to de energize the cutter servo motor light is off 3 Turn Cutter Power On Off to Off Power is no longer supplied to the cutter portion of the combination puller cutter The belt puller will continue running Follow the procedures on page 3 8 to change cutter blades UGE048 0399 SCE SCX Combination Puller Cutter OPERATION 4 1 9 WARNING N f th STOPPING THE A N guard Eredi Or INE TOA hi connec COMBINATION to stop the combination puller cutter p C This can cause damage to the equipment and injury to personnel Use the recommended pro ULLER UTTER cedure to assure safe stopping CAUTION Always turn Cut On Off to Off first _ This is especially important in Flywheel mode otherwise the blade may come to a stop in the extrudate Tto safely stop the combination puller cutter 1 Press Cut On Off button on the Cutter control to stop cutting light is off Press Stop Cutter button to de energize the servo motor light is off Remove extrudate from both puller and cutter Press the red Puller Stop button Ol B G N Turn the rotary disconnect to the off position f WARNING Never turn off the rotary disconnect first Doing so will turn off all power to the unit and the cutter will not be brought to a controlled stop For safe stopping always follow the sequence given above Disc
25. the set point speed Pressing the Tach button displays the actual speed When you select one of these the LED in the cor ner lights Either Set Speed or Tach is active at all times NOTE The actual speed shown is the average speed It is updated once every second Numeric Keypad Use the numeric keypad to access control parameters adjust programming settings and change the setpoint speed Data Entry buttons The Clear button deletes the value showing on the digital display that you have just entered The Enter button con firms and accepts data values Scroll buttons Use the Up and Down scroll buttons to adjust the active setpoint displayed on the digital display by one engineer ing unit These buttons are always enabled Two digit display The two digit display shows the active programming code Code Select button Use this button to enter the desired programming code Code Select LEDs The LED next to the code lights when that code is select ed These are not relevant when the Master Scaling for mat is used Programming codes This table lists the major codes for you to choose See Appendix page F 1 for a complete listing of codes 4 8 OPERATION SCE SCX Combination Puller Cutter UGE048 0399 There are five buttons below the Cutter Control and the Puller Com BIN ATI ON control They are Cutter Power On Off CONT ROL Turn the Cutter Power On Off to shut down the cut ter portion of the combinatio
26. tions or bad switches Replace if necessary TROUBLESHOOTING 6 9 CUTTER OPERATION PROBLEMS cont p Symptom Possible cause Solution Blade speed does There is a communication Check wiring for loose con not change when new failure between the con nections and tighten speed is entered into trol and drive the control SCX only Cutter mode selec There isa communication Check wiring for loose con tion does not change failure between the con nections and tighten cut mode trol and drive The park home The coupling between the See Checking the Motor position is drifting servo motor and the Reducer Assembly page 6 19 i e the blade parks Micron reducer has further away from slipped the original park position SCX only The Trantorque coupling Refer to the Trantorque has slipped instructions page 5 20 The park position is erratic SCE only The home proximity Replace the proximity switch switch is bad The home proximity See Adjusting the Proximity switch is not properly Switches page 6 17 gapped 6 1 0 TROUBLESHOOTING SCE SCX Combination Puller Cutter UGE048 0399 Look in this section when the final product does not meet quality standards Symptom Annular rings present on the extrudate Burrs at cut site UGE048 0399 Possible cause The belt puller is too close to the cutter The anti backlash bear ings are not working properly The bushings do not pro v
27. to the cut site as possible In many cases the bushings must be modified to allow the blade holder to have close proximity to the cut site This offers the steepest angle of attack throughout the entire cutting process Generally straight knives can be obtained in thicknesses from 0 004 0 060 inch depending on the application Curved edge knives offer increased slicing throughout the entire cutting action They are generally used for cutting rub ber preforms rubber hose flexible foams and other materials that require slicing Blade lubrication is often used to enhance the cut and minimize blade and bushing buildup As a general rule curved edge knives offer improved cut qual ity on rigid materials if additional heat can be used However if used on cold rigid materials curved knives have a tendency to produce wavy or angled cuts A curved edge knife can sometimes cut larger cross section profiles and tubing with the same horse power as a straight edge blade However the use of a curved blade increases product interruption To overcome this effect use a variable speed rotary knife cutter to vary the blade speed to obtain the desired cut quality Piercing blade bat wing woodpecker knives are specifi cally designed for cutting thin wall tubing Their shape mini mizes penetration marks caused by the flattening action of the blade prior to penetration of the extrudate These are the most expensive type of blade and the most susceptib
28. to the shipping papers to ensure that you have all the parts 3 Carefully inspect all components to make sure no damage occurred during shipping Check all wire terminal connections bolts and any other electrical connections which may have come loose during shipping 4 Record serial numbers and specifications in the blanks provided on the back of the User Guide s title page This information will be helpful if you ever need service or parts 5 You are now ready to begin installation Complete the preparation steps on page 3 3 3 2 INSTALLATION SCE SCX Combination Puller Cutter UGE048 0399 1 You will need these tools for installation PREPARING FOR NSTALLATION O wire strain relief O 16 or 18 inch adjustable wrench O set of Allen wrenches O set of feeler gauges O inch open or box end wrench O flashlight 2 Plan the location Make sure the area where the servo cutter is installed has the following A grounded power source Check the cutter s seri al tag for the correct amps voltage phase and cycles All wiring should be completed by qualified personnel and should comply with your region s electrical codes Clearance for safe operation and maintenance Make sure there is enough clearance around the servo cutter for maintenance and servicing If the servo cutter has the optional slide base be sure to check for clearance by extending the slide system in both direc
29. torque 2000 in lb or 225 N m Do not overtighten it can cause damage to the unit 5 20 MAINTENANCE SCE SCX Combination Puller Cutter UGE048 0399 TROUBLESHOOTING Before Beginning 6 2 A Few Words of Caution 6 2 Identifying the Cause ofa Problem 6 4 Puller Operation Problems 6 5 Cutter Operation Problems 6 7 Product Quality Problems 6 11 REPAIR Restoring Default Memory Settings 6 16 Restoring User Specific Memory Settings 6 16 Replacing Safety and Proximity Switches 6 17 Checking the Servo Amplifier 6 18 Adjusting the Proximity Switches 6 18 Checking the Motor Reducer Assembly 6 19 Testing Repeatability 6 20 Results of Repeatability WOSUNG lier nts teats ee ere 6 21 UGE048 0399 SCE SCX Combination Puller Cutter 6 1 BEFORE BEGINNING A Few Worpbs OF CAUTION 6 2 TROUBLESHOOTING You can avoid most problems by following the recommended installation operation and maintenance procedures outlined in this User Guide If you have a problem this section will help you determine the cause and tell you how to fix it Before you begin troubleshooting CJ Find any wiring parts and assembly diagrams that were shipped with your equipment These are the best reference for correcting a problem The diagrams will note any custom features or options not covered i
30. you can easily reset your control Some of the default codes are listed inside the flip down cover of the control Contrex Contrex i758 1 Turn on the puller by turning the main disconnect to the ON position The microprocessor performs a self diagnostic test about 2 seconds then enters the default STOP state Speed Command output zero Parameters and setpoints are recovered from mem ory 2 Open the controller s flip down cover to view the programming keypad 3 Press the Code Select button and enter the two digit parameter code Refer to Appendix page F 1 Puller Control Settings for a complete list of parameter codes descriptions and settings SCE SCX Combination Puller Cutter UGE048 0399 4 Press the Enter button The two digit parameter code displays in the lower LED window The current value for that code displays in the upper LED window 5 For each parameter compare the value in the upper display to the value listed on page F 1 Puller Control Settings in the Appendix 6l Continue to press the Enter button to view all the parameter codes If any values differ from what is list ed on the Puller Control Settings page F 1 contact Conair Service immediately 1 Make sure all components are installed according to assembly drawings Make sure that all bolts have been PREPARING FOR checked for tightness TESTIN G 2 Check that the
31. 0 O Checking all electrical cables Inspect all electrical cables for cuts and abrasions Replace as needed Directions on page 5 12 O Inspecting control panel lights Check to make sure no LEDs or lights are burned out on the control panel Replace as needed O Checking motor brushes Inspect the motor burshes Replace as needed See page 5 11 UGE048 0399 SCE SCX Combination Puller Cutter PREVENTATIVE MAINTENANCE SCHEDULE MAINTENANCE 5 5 INSPECTING CUTTER BLADES INSPECTING BLADE HARDWARE 5 6 MAINTENANCE Blades become dull over time depending on the material being cut cut rate blade speed and blade material and thickness Check blades regularly for sharpness as well as scratches nicks burrs and material buildup Clean sharpen or replace as needed see Installing Cutter Blades page 3 8 DANGER Sharp blades Most injuries caused by knife blades occur when the cutter has been turned off Handle blades with care at all times Always wear cut resistant gloves when the cut ting chamber is open and when handling blades Always lock out the cutter before opening the cutting chamber Always wait until the cutter head has stopped completely before opening the knife guard The blade securing bolt should use both a lock washer and flat washer and be tightened enough to fully compress the lock washer Replace the holding pins if they appear worn MA WARNING Do not operate the combi
32. 0 units the top and bottom belts open from a common fixed center For 426 and 639 units each belt adjusts independently allowing the operator to fine tune the machine height Rubber grommets 320 or a 90 pound die spring 426 639 allow the upper belt to give slightly preventing the puller from being damaged by small lumps of extrudate or other for eign objects After passing through the belts the pulled material continues on to the cutter The cutter is mounted on linear slides that allow as much as 6 inches of movement The cutter can be moved away from the puller for startup then moved close to the puller to enhance delivery to the cutter bushings The cutter s servo motor which is either velocity control SCE models or positional control SCX models is direct coupled to an in line planetary gear reducer and drives the cutter head The cutting knife attached to the cutter head is driven by the servo motor Two cutter bushings guide and support both the extrudate and the cutting knife The extrudate passed through the cutter bushings and is cut by the rotating cutter head step 3 The cutter head is mounted directly to the in line planetary gear reducer shaft using a Trantorque coupling device and may have as many as eight optional blade positions Cut pieces are collected or carried on to further processing by an optional conveyor step 4 SCE SCX Combination Puller Cutter UGE048 0399 4 3 The cu
33. 0399 Cutter bushing shear surface quality Similar to a dull pair of scissors if the cutter bushing shear surface is not sharp the tube or profile is not supported to the side of the blade and the cut will not be clean In some cases the entrance of the downstream cutter bushing is slightly radiused to minimize jamming While this practice helps accommodate bushing bores that are not quite aligned it has a negative effect on cut quality The shear surface of both the upstream and downstream cutter bushings should be sharp and bored to the same size NOTE In high speed cutting applications the down stream bushing is sometimes bored 0 005 larger than the upstream bushing to minimize jamming Deburr the edge after the boring operation but be careful to remove only the burr and not the edge Leave a minimum land of 1 8 1 4 on the face of the cutter bushing beyond the bore Angle the rest of the bushing face with a 10 15 degree lead in 0 10 0 15 Burr produced from lack of support lt a Extrudate UGE048 0399 ALL ABouT CUTTER BUSHINGS ALL ABOUT CUTTER BUSHINGS APPENDIX C 3 ALL ABOUT Cutter bushing length CAUTION Blade hazard CUTTER A In order to comply with OSHA regulations the BUSHINGS distance from the sidewall of the cutter to the blade through the bushing must be long enough to prevent fingers from reaching the blade On flexible extrudates it is important to minimize the length of th
34. 14 44 0 As an example calculate the blade interruption in millisec onds for an SCX2 cutter running 1 4 0 250 OD tubing The blade speed is 718 rpm and the cutting blade is 15 16 0 937 width at the point where it passes through the extru date and the cut path circumference is 34 6 for the SCX2 Calculate the blade interruption time The interruption time starts when the blade makes its first contact with the extrudate and ends when the blade is totally clear of the product i e no longer interrupting it Because we know the blade travel speed we can calculate the interruption time if we know how far the blade travels during period of interruption This dis tance is equal to the sum of the extrudate outer diameter and the blade width at the point of contact Blade interruption Product OD Blade width X 60 000 time msec Knife circumference rpm CUTTER BLADE SELECTION AND USE UGE048 0399 CUTTER BLADE i SELECTION ae AND USE Straight blade gt 2 250 F4 Curved blade To calculate interruption time 0 937 in 0 250 in X 60 000msec reyv 2 87msec 34 6 in 718 rpm Knowing the interruption time and the line speed you can cal culate the amouth of production deflection that must be acco modated during cutting To calculate the amount of extrudate deflection between the cutter and puller multiply line speed by interruption time Blade Interruption X Line speed X 12 Deflectio
35. 5 18 Checking Torque 5 20 UGE048 0399 SCE SCX Combination Puller Cutter MAINTENANCE FEATURES WARNINGS AND CAUTIONS 5 2 MAINTENANCE The Servo Cutter SCE and SCX models need regular sched uled maintenance for peak performance Among the features that require maintenance are Puller belts Cutter blades Blade mounting hardware Cutter bushings The knife guard hardware Floor locks Lubrication Optional slide rail system Electrical cables terminals and control lights Equipment alignment To maintain the best performance of the Combination Puller Cutter it must be cleaned and inspected regularly Maintenance includes a daily weekly quarterly and semi annual every 6 months schedule Use this maintenance schedule as a guide You may need to shorten the time of the maintenance schedule depending on how often you use the servo cutter and the types of material flowing through it Follow all precautions and warnings when working on the equipment WARNING Improper installation operation or servicing may result in equipment damage or personal injury This equipment should only be installed adjust ed and serviced by qualified technical person nel who are familiar with the construction oper ation and potential hazards of this type of machine All wiring disconnects and fuses should be installed by qualified electrical technicians in accordance with electrical c
36. AINTENANCE 5 1 5 CHECKING THE For the 320 models The upper and lower belt boom assemblies are controlled B ELT G AP by a common threaded rod Turn the hand wheel to move the belts up and down For the 426 and 639 models Each belt boom assembly is moved separately A single handle is used for both threaded rods To move the handle from one rod to the other lift it and place it on the other shaft You may have to rotate it slightly to engage the key way with the key on the shaft L mia 1 Place the hand wheel on the left threaded rod and turn to move the upper belt up and down 5 1 6 MAINTENANCE SCE SCX Combination Puller Cutter UGE048 0399 2 Place the hand wheel on the right threaded rod and turn to move the lower belt up and down The optional Pneumatic Upper Belt Actuator can also be used to position the upper belt Refer to page E 1 in the Appendix for more information UGE048 0399 SCE SCX Combination Puller Cutter MAINTENANCE 5 1 7 R EPLACING To replace puller belts BELTS 1 e the rotary disconnect to the OFF posi 2 Remove the upper and lower belt guards 3 Release belt tension by loosening the threaded rods Keep tension on front and back edges as even as possible by turning each rod 5 10 revolutions then switching to the other side Continue until the belt is loose enough to slide off the puller 4 Remove the belt from the puller Check the
37. ATION SCE SCX Combination Puller Cutter UGE048 0399 2 Place the hand wheel on the right threaded rod and turn to move the lower belt up and down The optional Pneumatic Upper Belt Actuator can also be used to position the upper belt See Appendix page E 1 UGE048 0399 SCE SCX Combination Puller Cutter INSTALLATION 3 1 3 CHECKING REPEATABILITY 3 14 INSTALLATION Before any Conair puller cutters are shipped they are tested for cut time repeatability to be sure they are within perfor mance specifications The repeatability test checks the perfor mance of the rotary knife cutter to return the home park posi tion after a complete cut Acceptable repeatability times allowed for each cutter model prior to shipping are Type of Cutter Repeatability Time AC Pneumatic Cutter Less than 1 millisecond DC Pneumatic Cutter Less than 1 5 millisecond Velocity Servo E Drive Less than 1 millisecond Positional Servo FX Less than 0 1 millisecond Note 1 millisecond at 60 feet per minute is equal to 012 inches The repeatability mode is built into the Conair cutter controls and allows you to perform similar tests without any external test equipment It is recommended that you check repeatability on a regular basis Acceleration deceleration delays of the servo do not contribute to repeatability error any error is attributed solely to motor stability couplings assembly power and proximity sensor alignment Use any bl
38. Adjust the puller cutter s floorlock caster assembly to the center height of the extrusion line using a 16 or 18 inch adjustable wrench Remove the weight from the casters by locking down the floorlocks NOTE Never leave the puller cutter on casters only 5 Use a plumb line or laser to check for a straight line from the extrusion die through each line component to the cutter bushings Adjust as necessary 6 Adjust the belt puller entrance guide rollers to insure consistent product guidance UGE048 0399 SCE SCX Combination Puller Cutter INSTALLATION 3 5 CONNECTING THE MAIN POWER SOURCE IMPORTANT Always refer to the wiring diagrams that came with your combination puller cutter before making electrical connections The diagrams show the minimum size main power cable required for your cutter and the most accurate electrical component information 3 6 INSTALLATION connect and lock out electrical power sources WARNING Electrical hazard Before performing any work on this product dis to prevent injury from unexpected energization or start up A lockable device has been provid ed to isolate this product from potentially haz ardous electricity ation or servicing may result in WARNING Improper installation oper 3 SCE SCX Combination Puller Cutter equipment damage or personal injury This equipment should only
39. Applications 2 3 Limitations 00 ene 2 3 How the Combination Puller Cutter Works 2 4 Combination Puller Cutter Features 0 05 2 6 Specifications 2 7 Optional Equipment 2 8 UGE048 0399 SCE SCX Combination Puller Cutter The Conair SCE SCX Combination Puller Cutter pulls small WHAT IS THE to medium sized extruded products through sizing and or Com BIN ATION cooling tanks and cuts the product to lengths Since the puller and cutter are mounted on the same chassis alignment prob p U L L E B lems are minimized C UTTER The puller portion s direct DC drive system offers extremely good speed control which can be further improved by using an optional servo motor Different puller belt materials opti mize performance with different types of extruded materials The cutter portion utilizes either a velocity controlled servo motor SCE models or a position controlled servo motor SCX models SCE units achieve park position repeatability within millisecond while SCX units have even better park position repeatability less than 0 1 millisecond Combination Puller Cutter are available in several sizes Puller section Cutter section Combination Belt Width Traction Cutting Model 3 8 Length Capacity 320SCE2 2 320SCX2 2 426SCE2 2 426SCX2 2 426SCE3 3 426SCX3 or 639SCE4 4 639SCX4 4 639SCE5 5 639SCX5 5 2 2 DESCRIPTION SCE S
40. CX Combination Puller Cutter UGE048 0399 Conair Combination Puller Cutters can process extrudable plastics and rubber both on and off line Other extrudable TYPICAL materials foods ceramics magnets soaps etc may also be A P P L C ATI O N S processed depending on specific application requirements Combination puller cutters are available with different puller sizes 3 4 and 6 inch widths with traction lengths of 20 26 and 39 inches respectively and different cutting capacities 2 3 4 and 5 inches to suit your specific needs The cutter servo motor size and cutter head material may also be optimized for specific applications While the standard orientation is right to left combination puller cutters can also be made with a left to right orientation see Specifications page 2 7 The illustrations in this User Guide represent the standard right to left configuration SCE SCX cutters are limited to a specific range of product sizes based on each unit s cutting capacity SCE cutters are limited to a single speed while SCX cutters can operate over a range of speeds depending on which options are present See the product specifications page 2 7 Different materials line speeds temperatures and material cross sections can result in different cutting torques If you are changing any of these parameters consult your Conair service personnel to be sure your equipment can handle the changes Because the maximum distance
41. See page 3 9 Mounting the Cutter Bushings and the Appendix pages C 1 to D 3 Plug in the power cord and turn the main power disconnect to the on position if all other maintenance is completed SCE SCX Combination Puller Cutter UGE048 0399 Check the motor brushes If one or both is less than 1 4 in long replace both brushes R EP LACI NG To replace the motor brushes MOTOR Turn the rotary disconnect to the OFF posi BRUSHES tion 2 To access the brushes loosen the screws holding the access covers on each side of the motor hous ing and remove the covers 3 Remove the spring clips 4 Examine the brushes If one or both of the brushes are less than 1 4 in long replace both brushes 5 Replace the covers UGE048 0399 SCE SCX Combination Puller Cutter MAINTENANCE 5 1 1 CHECKING a WARNING Electrical hazard Before performing any work on this product ELECTRIC AL disconnect and lock out electrical power sources to prevent injury from unexpected ener CONNECTIONS gization or start up A lockable device has been provided to isolate this product from potentially hazardous electricity WARNING Improper installation oper ation or servicing may result in equipment damage or personal injury This equipment should only be installed adjust ed and serviced by qualified technical person nel who are familiar with the construction oper ation and potential haz
42. Speed button use the Adjustment arrows to enter the number of blades 1 2 4 or 8 Press the Set button to accept the value Use the Set button and Adjustment arrows to set the cut length 4 1 4 OPERATION SCE SCX Combination Puller Cutter UGE048 0399 The Encoder mode uses a scale factor called the prescale value to compensate for configurations that differ from the standard a measuring wheel with a foot circumference a 1200 pulse encoder and English units of measure The prescale value is set at the factory for your equipment and typ ical unit of measurement However it may occasionally be necessary to adjust the prescale value To check the length of the cut piece 1 Use the Select button to choose the Encoder mode 2 Press the Set button and use the Adjustment arrows to set the length equal to 12 00 inches 3 Produce several trial cuts Measure the length of these pieces to within your tolerance usually to the near est thousandth If the pieces are not the correct length you will have to change the prescale value NOTE You can affect the cut length by changing the clamping force on the puller Increasing the belt ten sion results in less slippage and longer cut length Decreasing belt tension results in more slippage and shorter cut lengths To adjust the prescale value 1 Make sure you are in encoder mode the Cutter On Off is off and the Start light is off
43. a test cut to check cut quality Use the slide system to move the cutter as far from the puller as possible 1 Loosen the turnbuckle at the downstream end of the puller cutter by turning 1 2 turns clockwise 2 Slide the cutter as far downstream as it will go 3 Tighten the turnbuckle by turning it counterclock wise When you are satisfied with cut quality press the Cut On Off button to illuminate the LED and begin automatic operation When the extrudate is running within tolerance cut it with a knife or saw and feed it through the cutter bushings Then move the cutter into position with respect to the puller For flexible products the cutter should be very close to the puller For more rigid products allow enough space between the cutter and puller to absorb any shoc generated during cutting SCE SCX Combination Puller Cutter UGE048 0399 You can make adjustments to the combination puller cutter during operation These adjustments include Making large changes to the puller speed Fine tuning the puller speed Making a manual cut during operation Counting the number of cuts Adjusting the cutter preset values Temporarily stopping cutting Stopping only the cutter 4 UGE048 0399 Press the Tach button on the puller control The LED in the corner of the Tach button lights The display shows the actual puller speed upda
44. ade speed and line speed The line speed is only seen while in the Encoder or Product modes It is recommend ed that the tests be performed at cut intervals between 0 5 and 5 seconds Do not change the blade speed or the line speed after starting the test To test repeatability 1 Turn on the cutter Performing the test with the cut ter off line shows problems with the cutter performing the test with the cutter on line shows a problem with the puller Place the cutter in any mode except follower mode ed automatiocally Press and hold the Move Right button for a minimum of 5 seconds 2 3 Press the Cut On Off button the cutter is activat 4 5 Read the results on the display Repeat the test by pressing the Reset Test Cut button to begin a new sample period To end the Repeatability test press any button except the Reset Test Cut button The LED returns to its normal display SCE SCX Combination Puller Cutter UGE048 0399 Rousi Fiond mode _ REPEATABIIY The display shows Repeat Test and the park to park PP reading This is the total peak variance of a full revolution of the cutter head The reading is in milliseconds to the third TEST R ESU LTS decimal place i e 0 010 is 0 01 milliseconds or 10 microsec onds If the reading exceeds 9 999 the unit automatically resets the repeatability test displays Over Run and attempts to begin the test again If t
45. and Proximity Switches 6 17 Checking the Servo Amplifier lt 226i4seicinsaeendu 6 18 Adjusting the Proximity Switches sasssaasuuua 6 18 Checking the Motor Reducer Assembly 6 19 Testing Repeatability to lt acd0u ed eere rei dees ceed 6 20 Results of Repeatability Testing 6 21 SCE SCX Combination Puller Cutter UGE048 0399 APPENDIX ssa cea we se we oe ee ee TABLE OF Customer Service Information 2 2 s0seee2 seewss A 1 Warranty Information sussun de eee een oes A 2 CONTENTS Cutter Blade Selection and Use nunusuaanauaanunua B 1 Cuttings TIPS 22s deedaseine dence giia eiea ai ei B 3 Calculating Blade Interruption B 4 Conair Cutter Blades essi 252 wee Lede ee naa ee B 6 All About Cutter Bushings 2 4 csi0 geese eius C 1 Blade and Bushing Lubrication D 1 Choosing Belt Materi ls 22024 dee 44 08 ended deeeurs E 1 Conair Belts cc6icidedusdes due iont ArI EE reeds E 1 Puller Control Settings 2i5 2kxudaed geetaen cuwheeden F 1 Advanced Procedure PID Tuning 22 225 420see0 5045 F 3 Using the Digital Belt Gap Sensor 24 445 2e 02eeha05 G 1 Adjusting the Pneumatic Upper Belt Actuator G 2 ParTs DIAGRAMS This section has been provided for you to store spare parts lists and diagrams UGE048 0399 SCE SCX Combination Puller Cutter INTRODUCTION Purpose of the User Guide 1 2 How the User Guide IS organized
46. ane and dual material Available belts are listed under Conair Belts Part No Model 320 Belt type 3511 30008 3511 30112 3511 30064 3511 30072 173 047 01 173 047 02 173 047 03 173 047 04 173 047 05 173 047 06 3511 30120 Belt type 173 039 01 173 039 02 173 039 03 UGE048 0399 in this Appendix Material Durometer Covering Color Wear Traction FDA Thickness Approved Poly V 390 J 32 Natural rubber 35 40 31 in 8mm tan brown medium excellent No Natural rubber 50 55 31 in 8mm tan green medium excellent No excellent Natural rubber 70 31 in 8mm red excellent medium No excellent Natural rubber 35 40 31 in 8mm white medium excellent Yes Neoprene 40 31 in 8mm white medium excellent Yes Nitrile 60 31 in 8mm white medium medium Yes excellent Carboxylated 60 31 in 8mm blue medium medium No nitrile excellent Carboxylated 70 31 in 8mm blue red excellent medium No nitrile Urethane 55 31 in 8mm green excellent medium No Urethane 70 31 in 8mm green excellent low No Dual material 50 31 in 8mm brown medium excellent No Flat 3x49x 243 Grabber Natural rubber 35 40 243 in tan brown medium excellent No 6 2mm overall Carboxylated 60 243 in blue medium medium No nitrile 6 2mm overall excellent Urethane 70 243 in green excellent medium low No 6 2mm overall CHoosinG BELT MATERIALS APPENDIX E 1 Conair BELTS Part Material Durometer Covering Color Wear Traction FDA No Thic
47. ards of this type of machine All wiring disconnects and fuses should be installed by qualified electrical technicians in accordance with electrical codes in your region Always maintain a safe ground Do not operate the equipment at power levels other than what is specified on the machine serial tag and data plate 1 Be sure the main power is disconnected and the cutter is locked out Always disconnect and lock out the main power source before opening the unit or servicing 2 Turn the main power disconnect to the off position before opening the electrical enclosure on the back of the cutter or the back of the control This is a safety device to prevent you from opening the doors if the power is still on Main power safety disconnect 5 1 2 MAINTENANCE SCE SCX Combination Puller Cutter UGE048 0399 3 Open the electrical enclosure 4 Inspect all wires and connections Look for loose wires burned contacts and signs of over heated wires Have a qualified electrician make any necessary repairs or replacements 5 Close the electrical enclosure door 6 Inspect the exterior power cords Cords should not be crimped exposed or rubbing against the frame If the main power cord runs along the floor make sure it is not positioned where it could rest in pooling water or could be run over and cut by wheels or casters UGE048 0399 SCE SCX Combination Puller Cut
48. between the puller Li MITATIONS and cutter is only six inches the combination puller cutter is not suitable for larger rigid extruded parts The unit is limited by the traction length the length over which the extrudate is in contact with the puller belts which is fixed for a particular model The outer surface of the puller belt material will affect performance Softer low durometer materials provide good grab but will wear more quickly and may tear if the belt jams Harder materials last longer but may not grab the extrudate properly Contact Conair for specific belt material recommendations for your product UGE048 0399 SCE SCX Combination Puller Cutter DESCRIPTION 2 3 How THE COMBINATION PULLER CUTTER WORKS 2 4 DESCRIPTION Extruded material that has been sized and cooled enters the combination puller cutter from the upstream side The extru date passes through and is positioned by guide rollers step 1 page 2 5 Two opposing belts move the extrudate through the puller step 2 These belts have grooves that fit the teeth on the rolls preventing side to side movement Belt coverings are available in a variety of materials for your needs Walk through style belt guards ensure operator safety while allow ing access to the belts The belt speed is controlled by eye level controls One model 320 or two models 426 639 threaded rods con trol the distance between the upper and lower belts On 32
49. ce 2 lt e14s s0e0esege es 1 6 DESCRIPTION eee eee eee ee ee nn 2l What is the Combination Puller Cutter 2 2 Typical Applications iee essre ikea 4 p eum 2 3 Tamitations eissu eck ed a a a a wale hoes 2 3 How the Combination Puller Cutter Works 2 4 Combination Puller Cutter Features 0 2 6 BPeCiNCAMONS sedeci chee cme ex ee sewed R e 2 7 Optional Equipment 4 dscans4ehehewe eae eke ON ears 2 8 INSTALLATION 2 00 ee eee nn soul Unpacking the Boxes 4 2 c4scc0beeeereeebabiciakes 3 2 Preparing for Installation e0cececedeuek bedee dae oS 3 3 Positioning the Combination Puller Cutter 3 4 Connecting the Main Power Source 3 6 Installing the Cutler Blades 2 c3csecebeunseede cue 3 8 Mounting the Cutter Bushings 2 220 22 0seneanaus 3 9 Adjusting Belt Tension sc 245 eecadeevae de ones 5 3 10 Setting the Belt Gap 12s 24eeeeieseeseseh eeeee ss 3 12 Checking Repeatapility 242s4cdenew stud Sea euia nes 3 14 Repeatability Test Results 2 cc2edvedcesatvbeewne ds 3 15 Checking Programming Values 3 16 Preparing for Testing 2 2c00eesssksevegvdaeees dhs 3 17 Testing the Installation 2464 4 2a0vex ee een dee ne 3 18 OPERATION ce eee eee ee hed The Cutter Control ceren ek edness be ce sasnqme was 4 2 The Puller Control 2i2 0b2bsecebabe ds ce tenbiasaves 4 5 Cutter Control Pequres eiseres dated adnaeedevau wed 4 4 Puller Con
50. combination puller cutter is firmly locked into position with the anchoring screws 3 Check that all wiring conforms to electrical codes and all wiring covers are in place DANGER Pinch Hazard Never remove or disable safety devices to sus tain production Operating without these devices could lead to hazardous conditions that can cause severe injury Take all necessary precau tions when working around moving parts to pre vent body parts and clothing from being pulled into the machine QQ Q O UGE048 0399 SCE SCX Combination Puller Cutter INSTALLATION 3 1 7 TESTING THE 1 INSTALLATION 6 Turn on the main disconnect Plug in the main power cord and turn on the main disconnect The dis play should fully illuminate and perform its bootup routine Check that the E Stop button is in the out extended position NOTE If the E Stop button is pushed in the guard LED on the control will not illuminate even if all other safety features are in the proper positions Press the Start button The light on the button should light and the puller belts begin to rotate Make sure that the Cut On Off LED is Off If necessary press button to turn off LED Press Start Cutter button The LED in the button should light On SCX cutters the cutter head will make one or two slow revolutions until it finds its home offset position Open the knife
51. d 4 12 OPERATION After powering up the combination puller cutter you need to program the puller speed 1 Press the Set Speed button The numeric keypad is enabled 2 Enter the desired setpoint in fpm or rpm The display shows the numbers you entered If necessary press the Clear button to delete any entry 3 Press the Enter button The control accepts the new setpoint and the puller goes to the new speed at a pre programmed accelerttion rate On SCX combination puller cutters the blade speed can be adjusted to suit your particular application If you re not sure what blade speed to use start fast and work your way down to slower speeds More information is available in the Appendix pages B 1 through D 3 To set the blade speed 1 Press the Blade Speed button NOTE You can access blade speed ONLY when this button is ON The Total LED displays the message Blade The Length dis plays the previously set value one of the digits is flash ing 2 Use the adjustment arrows to set the blade speed to the desired value See Control Features begin ning on page 4 2 for an explanation of how to use the arrow keys 3 Press either the Set button or the Blade Speed button to accept this value and return to normal operation Pressing either button has the same effect NOTE If the value entered is outside the blade speed range for your cutter the blade speed
52. d the cut to cut CC reading The reading is in milliseconds to the third decimal place i e 0 010 is 0 01 milliseconds or 10 microseconds Compare the cut to park CP reading to the CP reading in the other modes There should be very little difference in these readings Compare the cut to cut CC reading to the CC reading in the other modes Since the Encoder and Product modes are influ enced by external signals this reading will reflect the speed stability of the puller UGE048 0399 SCE SCX Combination Puller Cutter INSTALLATION 3 1 5 CHECKING PROGRAMMING VALUES 3 16 INSTALLATION The M Trim control has about 55 programmable control para meters Some of these parameters are set by Conair as default values and others are set specifically for this combination puller cutter The current value of each parameter is stored in memory and recovered on startup However the M Trim control s memory can be corrupted by electrical noise surges etc making it impossible to retrieve the current values While the control can be reset to factory default settings any information specific to your puller will be lost unless you maintain a copy of the cur rent control parameter values You must have this information to return to normal operation See Appendix page F 1 Puller Control Settings for the default settings and your particular settings Any time you change these settings record them on the Puller Control Settings page so
53. e amount of differential error required before the Rate term influences the control output Procedure 1 Set Reset 66 and Rate 67 to zero 2 Set Trim Authority 68 to100 3 Reduce the Gain setting until the systembecomes unsta ble 4 Increase Gain slightly to re stabilize the system Decrease the value of Reset until overshoot is observed Overshoot occurs when the feedback goes overthe desired setpoint before settling to the desired value 1 Decrease the value of Rate until the system becomes unstable 2 Increase Rate slightly to re stabilize the system Start with Trim Authority set at 100 If stable operation cannot be achieved reduce this para meter and repeat the tuning procedure If unstable operation occurs only at very low feedback fre quencies slightly increase the this parameter PULLER CONTROL SETTINGS ADVANCED PROCEDURE PID TUNING APPENDIX F 3 The digital belt gap sensor uses a linear scale attached to both belts to measure the relative distance between the belts The relative distance is shown in thousandths of an inch 001 The sensor has five buttons On Off Turns the device on and off Mode Press to choose the readout in decimals fractions or millimeters Press to move up one engineering unit 0 Press to zero the reading Because all measure ments are relative the sensor can be set to zero at any time by pressing this button pre
54. e cutter bushings It is very difficult to push flexible extrudates through since it tends to compress as it is pushed causing a marginal increase in the tube diameter For this rea son bushing lubrication may be necessary to minimize drag as the length of the bushings increase A discharge conveyor may also be helpful in removing longer cut parts The exit bushing may be funneled to allow the cut part to drop out faster while still maintaining minimal bushing length for safety For flexibles the upstream cutter bushing should offer total support to the extrudate as close to the nip point of the puller as possible In this way the part is not able to move from side to side or bow from the weight of the tube which can in turn cause variable drag You use the strength of the tube to push itself The bore length of the exit bushing should not be shorter than 1 1 2 times the diameter of the tube with the remain der of the bushing length being tapered On sticky flexible extrudates the parts will actually stick back together if the new part has to push the cut part out very far For rigid extrudates the length of the cutter bushings can result in a square cut or an angular cut The cutter bushings support the extrudate keeping it from moving from side to side and bowing from the weight of the profile itself Many proces sors make their bushings short to minimize cost of EDM which is determined by depth of cut For rigid extrudates
55. e cutting modes The cutting mode is active when the light next to it is lit Timer light tells you the cutter is in the timer mode The timer mode uses a timer to produce a cut signal When a pre set time is reached a signal activates a single cut cycle In timer mode accuracy depends on the consisten cy of the belt puller or feeding device If the speed of the extrudate changes the length also changes Product light tells you the cutter is in the product mode Product mode uses an electric eye to sense the end of the extrudate and signal a cut The electric eye is mounted either on a bracket after the downstream cutter bushing or on the discharge conveyor If properly set up this is the most accurate on demand cutting mode Encoder Mode light tells you the cutter is in the encoder mode Encoder Mode uses a digital encoder to produce a set number of counts per unit of measure of forward extrudate movement The cut signal is generated when the number of counts equal to the desired length is reached Follower light tells you the cutter is in the follower mode Follower mode option available on SCX cutters only is a continuous cutting mode that uses the capabilities of the positional control servo motor The operator enters the number of blades on the flywheel and enters the desired cut length The servo motor is then gearlocked to the encoder signal which allows it to automatically speed up or slow down to follow the
56. ectric eye to produce a cut signal Two types of electric eye brackets are included A bracket for cutting parts 3 5 24 inches long This bracket is mounted on the bushing holder and uses a photo eye positioned above the extrudate for easy setup alignment and adjustment NOTE For this bracket and eye mounting the part must be rigid enough not to sag or flex at the cut distance A bracket for cutting parts up to 10 feet long This bracket mounts on a discharge conveyor The electric eye is a through beam type and can be adjusted to sense products that are at least 0 100 high height of piece above the con veyor UGE048 0399 SCE SCX Combination Puller Cutter DESCRIPTION 2 9 OPTIONAL EQUIPMENT NOTE Conair strongly rec ommends using an isolation transformer Ensuring clean and proper power can help avoid the need for costly ser vice calls 2 10 DESCRIPTION Discharge Conveyor A discharge conveyor offers support before during and after cutting and facilitates the removal of cut parts Discharge conveyors are available in the following sizes 6 inches wide by 6 feet long 6 inches wide by 12 feet long 6 inches wide by 16 feet long Isolation Transformer The isolation transformer protects sensitive electronics from incoming power which helps prevent errors caused by electri cal noise It also protects equipment from electrical noise gen erated by the servo motor and associated amplifier NOTE An isolati
57. ed either by pushing the E stop or turning off power using the disconnect The puller cutter won t run if the Reset button is lit Make sure that the Cut On Off button is off i e the light should not be lit If necessary press the button to turn the light off Press the green Puller Start button to start the servo motor amplifier program mode The green light on the Start Cutter button illuminates On SCX cutters the blade may make one or two rotations to find its home off set position Press the green Start Cutter button to start the servo motor amplifier program mode The red light on the Start Cutter button illuminates On SCX puller cutters the blade may make one or two rotations to find its home off set position UGE048 0399 SCE SCX Combination Puller Cutter POWERING UP You can watch the servo motor amplifier s status screen during bootup through the window on the back of the electrical enclosure This display gives information that may be useful if you have a problem See the Trouble shooting section OperaATION 4 11 PROGRAMMING THE PULLER SPEED SETTING THE BLADE SPEED TIP To find the minimum and maximum blade speeds for your particular cutter first enter a number under 100 The minimum blade speed displays as the default value Record this number as the minimum blade speed for your cutter Next enter a number greater than 1000 and record the resulting default value as the maximum blade spee
58. ed 70 39 in 10mm blue red excellent medium No nitrile 173 048 04 Urethane 55 39 in 10mm green excellent medium No 173 048 05 Urethane 70 39 in 10mm green excellent low No 3511 30136 Dual material 50 39 in 10mm brown medium excellent No APPENDIX E 2 CHOOSING BELT MATERIALS UGE048 0399 This table shows the settings for each control parameter set at the factory The parameters are set either to the default setting or to a setting specific to your requirements Customer col umn If you change any value record it in this column Keep these values up to date so you can easily restore your puller to normal operation if the memory is corrupted input primary mode Code Parameter Range Default Customer Setpoint Control 01 Primary Setpoint 1 0000 9999 02 Primary Setpoint 2 0000 9999 03 Secondary Setpoint 1 0000 9999 04 Secondary Setpoint 2 0000 9999 05 Jog Setpoint 0000 9999 06 Output Setpoint 0000 9999 Alarms and Limits 10 Minimum Limit 0000 9999 11 Maximum Limit 0000 9999 12 Low Alarm 0000 9999 13 High Alarm 0000 9999 14 Error Alarm 1 ramped 0000 9999 15 Error Alarm 2 scaled 0000 9999 Acceleration and Deceleration 16 Acceleration time 000 0 600 0 17 Deceleration time 000 0 600 0 Phase Control 18 Lag Pulse Limit 0 9999 19 Lead Pulse Limit 0 9999 Scaling 20 Engineering units 000 0 9999 primary setpoint 21 Enginee
59. embly from the cutter 4 Refer to the Micron installation and maintenance information included with this User Guide to check and adjust the motor reducer assembly UGE048 0399 SCE SCX Combination Puller Cutter TROUBLESHOOTING 6 1 9 TESTING REPEATABILITY 6 20 TROUBLESHOOTING Before any Conair puller cutters are shipped they are tested for cut time repeatability to be sure they are within perfor mance specifications The repeatability test checks the perfor mance of the rotary knife cutter to return the home park posi tion after a complete cut Acceptable repeatability times allowed for each cutter model prior to shipping are Type of Cutter Repeatability Time AC Pneumatic Cutter Less than 1 millisecond DC Pneumatic Cutter Less than 1 5 millisecond Velocity Servo E Drive Less than 1 millisecond Positional Servo FX Less than 0 1 millisecond Note 1 millisecond at 60 feet per minute is equal to 012 inches The repeatability mode is built into the Conair cutter controls and allows you to perform similar tests without any external test equipment It is recommended that you check repeatability on a regular basis Acceleration deceleration delays of the servo do not contribute to repeatability error any error is attributed solely to motor stability couplings assembly power and proximity sensor alignment Use any blade speed and line speed The Line speed is only seen while in the Encoder or Product modes It
60. ften lead to an S shaped cut A flat bottomed bushing will offer excellent support and enhance the shearing action of the blade In the case of flexible extrudates allow 0 010 0 050 in clearance depending on durometer and surface the softer durometers and tacky surfaces require the most clearance In the case of softer durometer materials bushing lubrica tion may be required to minimize drag and material build up between the cutter bushing faces Cutter bushing bore surface quality The internal surface of the cutter bushing must be smooth and glass like when cutting flexible extrudates otherwise exces sive drag causes jamming and can lead to variations in cut to length accuracy When cutting flexible materials have the internal sur face machined to resemble glass In many cases med ical processors will actually have the ID of their bush ings either honed or burnished for best results When cutting clear extrudates it is also very important to have a smooth internal surface to minimize scratch es In some cases it may be necessary to make a Teflon or Delrin insert to further minimize drag and or scratch ing Bushing lubrication can also help minimize bushing drag Be sure to have a lead in angle machined into the entrance of the upstream cutter bushing The transition from the bore to the lead in angle should not be abrupt as it to can cause variable drag C 2 APPENDIX ALL ABOUT CUTTER BUSHINGS UGE048
61. h accuracy is maintained even if the puller changes speed SCE SCX Combination Puller Cutter UGE048 0399 Cutter Bushing Lubrication O PTIONAL This is a self contained spray system which includes a reser voir and air inlet for operation at 20 30 psig air source not included A flexible nozzle directs lubricant onto the extru Eau PM ENT date as it enters the cutter bushings This decreases bushing drag and helps lubricate the blade This option is particularly recommended for processing sticky soft low durometer materials Cutter Blade Wipe The blade wipe system keeps the cutting blade clean by removing lubricant and particles from the blade A reservour chamber with a flexible drip tube feeds lubricant to a felt pad sandwiched between two pieces of stainless steel in the lubri cation tray The pad wipes and lubricates the knife before each cut LE 850 Cutter Control This advanced cutter control offers many additional features Four preset cut lengths with individual outputs Four preset batch counters with individual outputs Automatic scrap sorting when interfaced with in line gauge monitor or control system gauge not included Automatic shut down mode for off line cutting Cuff sequencing mode for multiple cutting per cuff up to three cuts per cuff and up to four separate cuffs per chain Recipe storage of cutting programs RS 485 serial communications End Sense This option allows the use of an el
62. h stops the cutter and prevents starting the cutter again Iwo proximity type safety switches prevent operation unless the cutter bushings are in place The Cutter Stop button activates a circuit that stops the knife ation or servicing may result in equipment damage or personal injury This equipment should only be installed adjust ed and serviced by qualified technical person nel who are familiar with the construction oper ation and potential hazards of this type of machine f WARNING Improper installation oper All wiring disconnects and fuses should be installed by qualified electrical technicians in accordance with electrical codes in your region Always maintain a safe ground Do not operate the equipment at power levels other than what is specified on the machine serial plate UGE048 0399 SCE SCX Combination Puller Cutter INTRODUCTION 1 3 A ATTENTION READ THIS SO NO ONE GETS HURT 1 4 INTRODUCTION ob WARNING Voltage Hazard This equipment is powered by one or three phase alternating current as specified on the machine serial tag and data plate A properly sized conductive ground wire from the incoming power supply must be connected to the chassis ground terminal inside the electri cal enclosure Improper grounding can result in severe personal injury and erratic machine operation Always disconnect and lockout power before opening the electrical enclosure or performing non routine proced
63. help minimize problems caused by rough or poorly ground blades and cutter bushings it is gener ally better to solve the problem than mask it with lubricants D 2 APPENDIX BLADE AND BUSHING LUBRICATION UGE048 0399 Common cutting lubricants Commonly used general purpose lubricants include Tap water Dish washing liquid Joy etc Glycol anti freeze coolant Water soluble silicone cutting oils Diesel fuel Mold release Mineral oil Medical grade lubricants Distilled water sopropanol isopropyl alcohol Mixtures of isopropanol and water Lubrication systems The most basic blade lubrication system for rotary knife cut ters is using a stainless steel tray filled with the lubricant Because the cutting blade passes through the tray during every cutting cycle the blade is lubricated before each cut This approach limits material buildup on blade and bushing sur faces for most applications Care must be taken to maintain the lubricant level within the tray and clean out accumulated cut residue on a regular basis Spray mist systems can be used to lubricate either the blade or the extrudate as it enters the cutter bushings These systems allow the application of a minimum amount of lubricant with good consistency If the mist is applied to the product as it enters the cutter bushings the lubricant will minimize the drag between the bushing bore and the tube or profile as well as wet the blade and bushing faces
64. hen pressed Guard light not illumi nated A safety switch has failed There is a loose connec tion Pressing Start Cutter had no effect The LED in the corner does not light and Guard Error displays The relay is bad The guard circuit failed The servo amplifier is not in Program mode Pressing the Reset Test button does not produce a cut when in an on demand mode There is a loose connec tion UGE048 0399 SCE SCX Combination Puller Cutter Pull out the E stop button Check to see if O The blade guard is closed J Master Control relay MCR has failed Replace relay Check connections and replace if needed Check wiring between cutter control and the relay Repair or replace the relay Check guard circuit repair or replace components Check servo amplifier LED diagnostic display The letter P should be visible If not reboot main power Check wiring and tighten con nection TROUBLESHOOTING 6 7 CUTTER OPERATION PROBLEMS cont p 6 8 Symptom After pressing Start Cutter the cutter head rotates slowly but does not stop SCX only Guard LED on cutter does not illu minate Encoder A B LEDs do not light TROUBLESHOOTING Possible cause The Blade Home proxim ity switch failed or the connection to it is loose Guard circuit is open Input from encoder failed Encoder failed SCE SCX Combination Puller Cutter Solut
65. his occurs the error is too large and there is a fault in the cutter drive that must be corrected Results in Timer mode When testing repeatability in Timer mode the cutter is making on demand cuts at a set time interval i e one second inter vals The display shows Repeat Test and then the cut to park CP reading and the cut to cut CC reading The read ing is in milliseconds to the third decimal place i e 0 010 is 0 01 milliseconds or 10 microseconds CP is the peak time variance between the cut signal output preset time to the servo amplifier and the proximity switch just prior to the end of the cut cycle This is the repeatability of the cutting system to return to the home park position This value is higher than the PP reading since it includes the accel eration and deceleration contributed by the servo motor CC is the peak time variance between cuts Record and com pare the cut to cut number to the CC value recorded in encoder or product mode shows how much error is by external influences i e variation in belt puller speed encoder mount ing problem etc If the reading exceeds 9 999 the unit automatically resets the repeatability test displays the message Over Run and attempts to begin the test again If this occurs the error is too large and there is a definite fault that must be corrected Results in Encoder or Product mode The display shows Repeat Test and then the cut to park CP reading an
66. hows Jog active programming code Preset Limit Alarm Code Select button Dev Alarm Gy enters the desired pro Programming codes list major codes to choose Code Select LEDs show currently selected code More detailed descriptions of the Puller Control begin on page 4 8 UGE048 0399 SCE SCX Combination Puller Cutter OPERATION 4 3 C UTTER The cutter control has several features that allow you to input setup information monitor cutting process and view errors CONTROL Total information is located in the upper left of the control and FEATU RES consists of Total LED displays messages during startup and pro gramming During normal operation it shows the number of cuts if the counter has been activated It also displays error messages See Troubleshooting starting on page 6 1 for more details about error messages Total On Off button activates a counter that allows you to monitor the number of cuts This button is ON when the LED in the corner is lit Reset button clears the counter and resets count to zero Length information is located on the right of the control and consists of Length LED displays messages during startup During programming it shows the value of adjustable parameters During normal operation it shows either current length or elapsed time depending on the cutting mode It also dis plays error messages See Troubleshooting for more details about error messages Cut On Off but
67. ide enough support dur ing cutting The bushing gap is too wide The blade speed is too low The blade is too thick PRODUCT QUALITY PROBLEMS Solution If the extrudate is interrupted stopped during processing annular rings can develop especially on a thin walled product Slightly increase the distance between the puller and the cutter and test the product until the distance is correct Stop the puller and try to move the lower belt by hand The lower belt should not be able to travel backwards when you try to move it If it does the anti backlash bearings must be replaced Contact Conair Service Change bushing design to make more supportive Check that bushing gap is 0 001 0 003 in larger than blade Adjust if necessary Increase blade speed or decrease the cut path area Use a thinner blade or add heat to extrudate SCE SCX Combination Puller Cutter TROUBLESHOOTING 6 1 1 PRODUCT QUALITY PROBLEMS cont p Symptom Possible cause Hairs or strings Blade speed is too low The blade is too thick The blade is wrong for the application Material is building up on the blade and wiping off on the cut site There are imperfections on the blade A hole or slot in the blade cut path is causing a cheese grater effect The extrudate is too cold 6 1 2 TROUBLESHOOTING SCE SCX Combination Puller Cutter Solution Increase the blade speed or decrease the blade cut path a
68. imum performance Use a plumb line or laser to check for a straight line from the extrusion die to the cutter bushings O Checking floor locks See page 5 7 Weekly O Cleaning the blade lubrication tray See page 5 8 O Lubricating shafts on slide rail system See page 5 8 O Checking shafts and grease fittings Lubricate all shafts and grease fittings as needed See page 5 9 5 4 MAINTENANCE SCE SCX Combination Puller Cutter UGE048 0399 Monthly O Checking hardware on the knife guard Inspect the hardware on the knife guard fasteners on hinge and the clear blade guard window Tighten as needed O Checking bushing holder proximity switches Inspect the proximity switch set screws Adjust as needed See Adjusting the Cutter Proximity Switches page 5 10 O Cleaning the clear blade guard window Clean using glass cleaner or plain water Other materi als may cause premature loss of clarity or crazing O Checking the metal draw latch Inspect the latch on knife guard for wear and proper tension Readjust or replace as needed Semi annual every six months O Inspecting electrical terminals Check all electrical terminals for tightness adjust as needed See Checking Electrical Connections page 5 12 O Checking torque on Trantorque coupling device Check the tightness torque of the Trantorque cou pling device with a torque gauge This device connects the cutter head to the Micron reducer shaft See Checking Torque page 5 2
69. in 0 025 in 0 032 in 0 025 in 0 032 in Blade Material Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Spring Steel Stainless Steel Spring Steel Spring Steel Spring Steel Spring Steel Spring Steel Spring Steel Spring Steel Spring Steel Spring Steel Spring Steel Spring Steel Spring Steel UGE048 0399 Rotary knife cutter bushings are probably the most ignored aspect of cutting Yet they are probably the most important ingredient to obtaining clean square accurate cuts with mini mal jamming and broken blades This appendix contains information about several aspects of cutter bushings bore characteristics bushing length shear surface characteristics the bushing gap Cutter bushing bore size The cutter bushing bore size affects both the cutting process and the overall extrusion process Bushings with relatively large bores are often used to facilitate start up and minimize bushing inventory While this practice is acceptable for start up it will lead to premature blade failure because the bushings do not properly support the blade For optimum cut quality make sure the bore adequately supports the tube or profile When the blade first makes contact with the tube or profile it pushes the part until is assumes the size and or shape of the bushing bore In the case
70. ion Check connections and replace switch if needed Check to see if O The blade guard is closed O Loose connection to guard circuit Tighten connec tion Guard switch is bad Replace switch Check encoder cable for conti nuity Connect any loose wires Replace encoder UGE048 0399 Symptom In encoder or timer modes the display shows the count which resets but a cut does not occur at the point of reset Cutter control displays Blade error Cutter control displays Blade error UGE048 0399 Possible cause There is a problem with the cutter control There is a problem with the servo amplifier There is a loose connection There is an anti jam circuit signal There is a problem with the home proximity switch There is a problem in the guard circuit SCE SCX Combination Puller Cutter CUTTER OPERATION PROBLEMS cont p Solution Check for control output See Checking the Servo Amplifier Check wiring for loose connec tions This error appears when the blade does not go through the cut cycle in the required time Check for O Loose connection on cutter control or servo amplifier O Fault on Amplifier prevent ing cut cycle O Blade is stuck in extrudate bushings See Adjusting the Proximity Switches page 6 17 Make sure the E stop and Reset buttons are in the correct operating positions Check guard circuit for loose connec
71. kness Approved Model 426 Belt type Poly V 655 L 20 3511 30016 Natural rubber 35 40 39 in 10mm tan brown medium excellent No 3511 30088 Natural rubber 50 55 39 in 10mm tan green medium excellent No excellent 3511 30032 Natural rubber 70 39 in 10mm red excellent medium No excellent 3511 30040 Natural rubber 35 40 39 in 10mm white medium excellent Yes 173 046 05 Neoprene 40 39 in 10mm white medium excellent Yes 173 046 06 Nitrile 60 39 in 10mm white medium medium Yes excellent 173 046 01 Carboxylated 60 39 in 10mm blue medium medium No nitrile excellent 173 046 002 Carboxylated 70 39 in 10mm blue red excellent medium No nitrile 173 046 03 Urethane 55 39 in 10mm green excellent medium No 173 046 04 Urethane 70 39 in 10mm green excellent low No 3511 30128 Dual material 50 39 in 10mm brown medium excellent No Part Material Durometer Covering Color Wear Traction FDA No Thickness Approved Model 639 Belt type Poly V 915 L 32 3511 30024 Natural rubber 35 40 39 in 10mm tan brown medium excellent No 3511 30096 Natural rubber 50 55 39 in 10mm tan green medium excellent No excellent 3511 30048 Natural rubber 70 39 in 10mm red excellent medium No excellent 3511 30056 Natural rubber 35 40 39 in 10mm white medium excellent Yes 173 048 01 Nitrile 60 39 in 10mm white medium medium Yes excellent 173 048 02 Carboxylated 60 39 in 10mm blue medium medium No nitrile excellent 173 048 03 Carboxylat
72. le to breakage Because the point is exposed and not fully supported by the bushings it may deflect into the bottom of the bushing bore and break off For these reasons piercing blade knives are usually used as a last resort Some rigid materials require warming when this type of blade is used because the impact of the point can cause cracking or whitening CUTTER BLADE SELECTION AND USE UGE048 0399 Blade thickness CuTTER BLADE Because material is displaced rather than removed in rotary knife cutting think of the blade as a wedge The thicker the SELECTION blade the greater the displacement This displacement can AND U SE cause fracture in rigid profiles and tubing which is often observed as a whitening on all or a portion of the cut You can reduce this fracturing by reducing the thickness of the blade This effect can also be minimized by heating the profile or tube However if heat is used to enhance cut quality the bush ings must be supportive enough to minimize distortion If the cutting blade is too thin it may actually deflect within the bushing bore This can lead to S shaped cuts or prema ture blade breakage Optimizing blade speed Flexible extrudates generally require a very fast blade speed with a slicing action for best results This is due to the fact that even minimal interruption can cause a blade jam on a product that has little or no internal strength On the other hand rigid extrudates may require
73. me of the more flexible materials such as silicones soft urethanes and flexible PVCs also exhibit drag against the blade during the cutting cycle The part will actually stick to the side of the blade and drag down between the bushings Typically a small c shaped tail of the tube will accumulate in the bottom of the cutting chamber This tail actually tore off the tube rather than cut due to the excessive drag against the blade The generation of heat during cutting can also lead to parts that stick to each other They may appear to be welded togeth er and an extra operation may be required to separate them This can be a real problem in materials such as latex silicone PP and flexible PVC Benefits of using lubricants The primary benefit of using a cutting lubricant is reducing friction If the cutting blade is coated with a film of lubricant the coefficient of friction between the blade and the plastic tube or profile is reduced reducing the generation of frictional heat Lubricants also minimize the tendency for material to stick to the blade thus minimizing the potential for material to be wiped on the next cut part The co efficient of friction is reduced with varying degrees depending on the type of lubri cant which in turn limits the increase in blade temperature Over time this can lead to an increase in blade life because the cutting edge will last longer at cooler operating temperatures While lubricants can also
74. messages Refer to the supplier s documentation included with this User Guide NOTE Make sure you look for servo amplifier messages before you shut off the power The home position proximity switch should be 0 010 from the 5 16 thread rod on the cutter head for proper operation Pa 1 Open the knife guard 2 Locate the 1 4 thread rod on the cutter head It should be 0 010 from the proximity switch sensor when it passes that location If necessary loosen the jam nuts readjust the distance and re tighten the jam nuts DANGER Sharp blades i Always wear cut resistant gloves when the cut ting chamber is open and when handling blades Never open cutting chamber without locking out the cutter power Most injuries caused by knife blades occur when the cutter has been turned off Handle blades with care at all times 3 If the proximity switch does not sense the cutter head after this adjustment remove the switch and test it outside the cutter Replace if necessary SCE SCX Combination Puller Cutter UGE048 0399 1 Open the knife guard CHECKING THE 2 Remove the cutter head by loosening the Moto R REDUCER Trantorque assembly Refer to the manufacturer s guide included with this User Guide for information about the ASSEM B LY Trantorque assembly 3 Locate the four bolts holding the motor reducer assembly to the cutter Remove them and carefully remove the ass
75. n time msec fpm 60 000 in 2 87msec X 60fpm X 12 034 in In this example the puller and cutter must be set up to allow for 0 034 of product deflection during cutting Failure to do this can lead to puller stoppage which can form annular rings on the product and poor quality cuts hairs or fuzz and angu lar cuts UGE048 0399 CUTTER BLADE SELECTION AND USE APPENDIX B 5 CONAIR CUTTER BLADES B 6 APPENDIX Part No 3515 30088 3515 30096 3515 30104 3515 30016 3515 30085 3515 30072 3515 30080 3515 30032 3515 30128 3515 30024 3515 30024 1 3515 30136 3515 30136 1 7130320101 7130320102 7130320103 7130320301 7130320302 7130320201 7130320202 7130320501 7130320502 7130320401 7130320402 Blade Type Straight Straight Straight Straight Curved Curved Curved Curved Straight Straight Straight Straight Straight Curved Curved Curved Straight Straight Curved Curved Straight Straight Curved Curved Bushing Size 2 inch 2 inch 2 inch 2 inch 2 inch 2 inch 2 inch 2 inch 3 inch 3 inch 3 inch 3 inch 3 inch 3 inch 3 inch 3 inch 4 inch 4 inch 4 inch 4 inch 5 inch 5 inch 5 inch 5 inch CONAIR CUTTER BLADES Blade Thickness 0 010 in 0 015 in 0 020 in 0 025 in 0 010 in 0 015 in 0 020 in 0 025 in 0 020 in 0 025 in 0 025 in 0 032 in 0 032 in 0 015 in 0 025 in 0 032 in 0 025 in 0 032 in 0 025 in 0 032
76. n for blade replace FEATU R ES ment etc without shutting down the puller portion Machine Reset button Use to restart the combination puller cutter after an emergency stop E Stop button Press to stop the Combination Puller Cutter in an emergency Puller Start button Pressing this button energizes the puller portion Puller Stop button Press this button to shut down the puller portion UGE048 0399 SCE SCX Combination Puller Cutter OPERATION 4 9 BEFORE STARTING 4 10 OPERATION Before you start daily operation of the combination puller cut ter you need to perform preventative maintenance Necessary maintenance is described in the Maintenance section of this Users Guide beginning on page 5 1 WARNING Be sure that power to the puller cutter is OFF when doing any mainte nance on the puller cutter Follow all safety rules when performing any maintenance on this equipment Daily maintenance includes Inspecting the puller belt Inspecting the cutter blades Inspecting the blade mounting hardware Making sure the cutter bushings are properly secured Inspecting the closure latch on the knife guard Checking alignment with extrusion line Performing any floor lock adjustments as needed These items and weekly monthly and semi annual mainte nance procedures are detailed in the Maintenance section of this User Guide DANGER Pinch Hazard Never remove or disable safety devices to su
77. n this User Guide Verify that you have all instructional materials related to the puller Additional details about troubleshooting and repairing specific components are found in these materials OJ Check that you have manual for other equipment con nected in the system Troubleshooting may require investigating other equipment attached to or connected with the puller ation or servicing may result in equipment damage or personal injury This equipment should only be installed adjust ed and serviced by qualified technical person nel who are familiar with the construction oper ation and potential hazards of this type of machine All wiring disconnects and fuses should be installed and adjusted by qualified electrical technicians in accordance with electrical codes in your region Always maintain a safe ground Do not operate the equipment at power levels other than what is specified on the machine serial tag and data plate WARNING Electrical hazard AN Before performing maintenance or repairs on this product disconnect and lock out electrical power sources to prevent injury from unexpect ed energization or start up A lockable device has been provided to isolate this product from potentially hazardous electricity WARNING Improper installation oper SCE SCX Combination Puller Cutter UGE048 0399 DANGER Sharp blades Most injuries caused by knife blades occur A FEw WorpDs when the cutter has been turned
78. nation puller cutter without washers and blade securing bolt securely in place SCE SCX Combination Puller Cutter UGE048 0399 Check the set screws that secure the cutter bushings If bush ings move during cutting cutting blades and possibly the INSPECTING drive chain could be damaged C UTTER BUSHING SCREWS A Check the latch and adjust it so the knife guard closes com CH EC KIN G THE pletely This prevents false triggering of the safety switch CLOSURE LATCH It is best to remove the weight from the casters for optimum stability during cutting cycles Check to see if the floor lock CH ECKI NG ing mechanism is properly adjusted FLOOR Loc KS UGE048 0399 SCE SCX Combination Puller Cutter MAINTENANCE 5 7 CLEANING THE LUBRICATION TRAY LUBRICATING THE SLIDE RAIL 5 8 MAINTENANCE The lubrication tray is built into the cutter assembly as a sim ple method of applying lubrication to your blade during cut ting cycles Depending on cut rate and type of material and lubrication the area will need to be cleaned on a regular basis and the lubricant replaced Open the knife guard and using a shop vac or other similar equipment remove all liquid and solids from the cutting chamber and around the bushings Replace the lubricant For more information see the appen dix Blade and Bushing Lubrication page D 1 Check the shafts on the slide rail system Even though these shafts are stainless steel it is rec
79. odes in your region DANGER Pinch Hazard ome Never remove or disable safety devices to sus G_O tain production Operating without these devices could lead to hazardous conditions that can cause severe injury Take all necessary precau tions when working around moving parts to pre vent body parts and clothing from being pulled into the machine SCE SCX Combination Puller Cutter UGE048 0399 WARNING Voltage Hazard WARNINGS AND This equipment is powered by alternating cur rent as specified on the machine serial tag and data plate Do not operate the equipment at CAUTIONS power levels other than what is specified on the machine serial tag and data plate A properly sized conductive ground wire from the incoming power supply must be connected to the chassis ground terminal inside the elec trical enclosure Improper grounding can result in severe personal injury and erratic machine operation Before performing maintenance or repairs on this product disconnect and lock out electrical power sources to prevent injury from unexpect ed energization or start up A lockable device has been provided to isolate this product from potentially hazardous electricity DANGER Sharp blades Most injuries caused by knife blades occur when the cutter has been turned off Handle blades with care at all times Always wear cut resistant gloves when the cutting chamber is open and when handling blades Always lock out the cutte
80. om the factory Conair warrants that this equipment will perform at or above the ratings stated in specific quotations covering the equipment or as detailed in engineering specifications provided the equipment is applied installed operated and maintained in the recommended manner as outlined in our quotation or specifications Should performance not meet warranted levels Conair at its discretion will exercise one of the following options Inspect the equipment and perform alterations or adjustments to satisfy performance claims Charges for such inspections and corrections will be waived unless failure to meet warranty is due to misapplica tion improper installation poor maintenance practices or improper operation Replace the original equipment with other Conair equipment that will meet original performance claims at no extra cost to the customer Refund the invoiced cost to the customer Credit is subject to prior notice by the customer at which time a Return Goods Authorization Number RGA will be issued by Conair s Service Department Returned equipment must be well crated and in proper operating condition including all parts Returns must be prepaid Purchaser must notify Conair in writing of any claim and provide a customer receipt and other evidence that a claim is being made Except for the Equipment Guarantee and Performance Warranty stated above Conair disclaims all other war ranties with respect to the
81. ommended that a light oil WD 40 or similar be applied to the shafts as needed Wipe off any excess SCE SCX Combination Puller Cutter UGE048 0399 Lubricate all shafts and grease fittings as needed NO Lower bearing grease fitting UGE048 0399 SCE SCX Combination Puller Cutter CHECKING GREASE LOCATIONS Use regular grease for all locations except thread rods vertical shafts and vertical shaft drive boxes For thread rods and vertical shafts use Never Seize or equivalent The vertical shaft drive boxes require a high temperature grease Use Mobilgrease 28 or equivalent MAINTENANCE 5 9 ADJUSTING THE CUTTER PROXIMITY SWITCHES 5 10 MAINTENANCE Follow all warnings and cautions listed at the beginning of the Maintenance section of this User Guide 1 2 Be sure the main power is disconnected and the cutter is locked out Loosen the set screws that hold the cutter bushings 5 Remove the cutter bushings Check the depth of the proximity switch face for each bushing It should be recessed no more than 0 010 inches but should not interfere with the bushings themselves Use an Allen wrench to check the tightness of each proximity switch s retaining screw NOTE You can damage the proximity switch if you over tighten the retaining screw Replace cutter bushings and check for proper cut ting blade alignment
82. on Make sure it clicks into posi tion Contact Conair service Contact Conair service Check programming code 53 Refer to M Trim User Manual chapter 9 Check programming code 53 Refer to M Trim User manual chapter 9 TROUBLESHOOTING 6 5 PULLER OPERATION PROBLEMS cont p Symptom Motor runs at wrong speed Motor at correct set speed but not fast enough for the extrusion line Motor at correct set speed but not slow enough of the extrusion line Motor seems unstable Tach reads incorrectly Display shows a OR ees 6 6 TROUBLESHOOTING Possible cause Maximum rpm incorrect ly set Minimum rpm incorrect ly set Electrical noise is reach ing controller SCE SCX Combination Puller Cutter Solution Refer to M Trim user manual chapter 9 Check programming code 11 Refer to M Trim user manual chapter 9 Check programming code 10 Refer to M Trim user manual chapter 9 Check PID tuning See Appendix page F 3 Refer to M Trim user manual chapter 9 item 8 Check control parameters against desired values If val ues have changed restore the original settings See Restoring Memory Settings page 6 15 UGE048 0399 Look in this section when the cutter control is not working properly CUTTER OPERATION PROBLEMS Svmptom Possible cause Solution The lighted The E stop button is Reset button does pushed in not go out w
83. on and Control 75 Primary mode 0 9999 positive offset 76 Primary mode 0 9999 negative offset 77 Secondary mode 0 9999 positive offset 78 Secondary mode 0 9999 negative offset Setpoint Control 79 Setpoint mask 0 2 Analog Input Output 80 Analog output 0 99 function select 81 Analog output range 0 9999 82 Analog output zero 0 2048 83 Analog output span 2048 4095 84 Analog input 0 7 function select 85 Analog input zero 0 2048 86 Analog input span 2048 4095 F 2 APPENDIX PULLER CONTROL SETTINGS UGE048 0399 PID Proportional Integral Differential tuning is the process of setting the control algorithm parameters codes 65 69 to achieve optimum performance While each puller is tuned before shipment to optimize performance over the entire speed range customers may wish to tune the puller for their specific operating conditions Code Description 65 66 67 68 69 UGE048 0399 Gain small number increase the contribution of the Porportional compo nent Zero eliminaltes the Gain contribution Reset small numbers increase the contribution of the Integral component Zero eliminates the Reset contribution Rate small numbers increase the contribution of the Derivative compo nent Zero eliminates the Rate contribution Trim authority determines how much of the output is influenced by Gain Reset and Rate and how much is deter mined by feed forward Rate threshold sets th
84. on transformer will not compensate for a ground that does not meet code requirements Left to Right Machine Operation This option changes the machine direction from the standard right to left extrusion flow Your Conair sales representative can analyze your needs and recommend the options that are right for your system SCE SCX Combination Puller Cutter UGE048 0399 INSTALLATION Unpacking the Boxes 3 2 Preparing for Installation 3 3 Positioning the Combination Puller Cutter 3 4 Connecting the Main Power Source 5 3 6 Installing the Cutter Blades a oe ee ea 3 8 Mounting the Cutter BUSRINGS 25 ice eee eoaserats sees 3 9 Adjusting Belt Tension 3 10 Setting the Belt Gap 3 12 Checking Repeatability 3 14 Repeatability Test Results 3 15 Checking Programming vValue S heer a E nana 3 16 Preparing for Testing 3 17 Testing the Installation 3 18 UGE048 0399 SCE SCX Combination Puller Cutter The Conair Combination Puller Cutter comes fully assembled U NPACKING THE in a single crate BOXES CAUTION Lifting To avoid personal injury or damage to the cut ter lift the cutter using a forklift or hoist with straps that have been positioned at the cutter s center of gravity 1 Carefully uncrate the cutter and its compo nents 2 Remove all packing material protective paper tape and plastic Compare contents
85. onal entries required for the cutting mode you have selected Press the Set button Use the adjustment arrows to change the number listed on the Length or Time display Press Set button to return to normal operating mode For Timer mode Use the Set button and Adjustment arrows to change the time in seconds to three decimal places NOTE the decimal point cannot be moved For Encoder mode Use the Set button and Adjustment arrows to change the cut length If the cut length does not equal the set length adjust the prescale value see page 4 15 For Product mode Use the Set button and Adjustment arrows to change the hold off time In Product mode the desired length is set by the elec tric eye that sense the end and initiate a new cut To prevent unwanted double cuts a hold off or one shot timer is built into the cutter control After a cut is made the hold off time displays in the Display window in seconds to three decimal places and begins counting down to zero No cutting occurs until the countdown is completed Make sure the new value is less than the time between cuts NOTE 70 80 of the expected time between cuts is recom mended For Flywheel mode Use the Set button and Adjustment arrows to change the cutter blade speed If you are not sure what blade speed to use start fast and work your way down to slower speeds See Appendix All About Cutter Blades page B 1 For Follower mode Press the Blade
86. onnect the power cord if it is equipped with a plug on the end 6 7 Lock out the rotary disconnect 8 Clean the lubricant reservoir if you are shutting down the combination puller cutter for the day To shut down the combination puller cutter perform the stop SH UTTING ping procedure listed above No additional steps are necessary DOWN THE if the combination puller cutter is shut down for short period of time If the unit is shut down for an extended period of Pu LLER C UTTER _ time puller belts can and do acquire set If this occurs let the puller run for 20 30 minutes before use This should remove any set from the belts 4 20 OPERATION SCE SCX Combination Puller Cutter UGE048 0399 MAINTENANCE Maintenance Features 5 2 Warnings and Cautions 5 2 Preventative Maintenance Schedule 200000000 5 4 Inspecting Cutter Blades 5 6 Inspecting Blade Hardware 5 6 Inspecting Cutter Bushing Screws 5 7 Checking the Closure Latch 5 7 Checking Floor Locks 5 7 Cleaning the Lubrication Tray 5 8 Lubricating the Slide Rail 5 8 Checking the Grease Locations 5 9 Adjusting the Cutter Proximity Switches 5 10 Replacing Motor Brushes 5 11 Checking Electrical Connections 5 12 Testing Belt Tension 5 14 Checking the Belt Gap 5 16 Replacing Belts
87. ore opening the cutting chamber Always wait until the cutter head has com pletely stopped before opening the knife guard Combination puller cutters are equipped with several safety devices to ensure safe operation Never remove or disable these devices to sus tain production Operating without these devices can cause severe injury When the knife guard is opened the knife guard switch stops the cutter and prevents starting the cutter again Two proximity type safety switches prevent operation unless the cutter bushings are in place The Cutter Stop button activates a circuit that stops the cutter head Attach blade to cutter head with blade screw For on demand cutting mount the blade at the on demand position stamped on the cutter head For more information about choosing the appropriate blade for your material see the Appendix pages B 1 B 3 B 4 UGE048 0399 SCE SCX Combination Puller Cutter INSTALLATION 3 7 MOUNTING THE CUTTER BUSHINGS For more information about setting and adjusting the gap for the bushings see About Cutter Bushings in the Appendix page C 1 3 8 INSTALLATION DANGER Sharp blades ip Always wear cut resistant gloves when the cut _ ting chamber is open and when handling blades Never open cutting chamber without locking out the cutter power and waiting until the cutter head stops spinning 1 Rotate the cutter head until the blade is positioned in the gap
88. perator to view how much product has passed through the puller based on input from an encoder The counter may be zeroed at any time and rescaled as needed Velocity or positional servomotor with serial oper ator interface puller The standard DC puller drive can be replaced by a servomotor for applications requiring extreme accuracy Both velocity and velocity positional control units are available Different reducer ratios puller A particular reducer ratio is selected at the time of purchase to optimize puller performance in a particular speed range Cutting torque upgrades Several options can be used to increase the cutting torque SCE 2 3 cutters can be upgraded from a 2 46 HP MGE 455 to a 3 75 HP MGE 490 servo motor The larger servo motor is standard on SCE 4 5 cutters SCX 2 3 cutters can be upgraded from a 1 95 HP DXE 455 to a 3 33 HP DXE 490 servo motor The standard aluminum cutter head can be replaced with a heavier stainless steel one When this option is picked the maximum number of cuts per minute decreases from 350 to 250 Inertia and thus cutting torque is increased significantly Follower Cutting Mode SCX only Follower mode allows the operator to program the desired cut length and the number of blades The controller then automati cally follows the puller and adjusts the speed of the flywheel to maintain cut length accuracy This is known as an electronic gearlock system The cut lengt
89. puller speed Even if the puller is being adjusted to change wall thickness or out side diameter the cut length remains constant SCE SCX Combination Puller Cutter UGE048 0399 Flywheel light tells you the cutter is in the flywheel mode Flywheel mode is a continuous cutting mode the CUTTER blade spins continuously The speed is set at 750 rpm for SCE cutters but can be adjusted on SCX cutters from CONTROL 200 750 rpm NOTE If the puller speed changes the cut length will FEATU RES also change In most cases the puller speed consistency has a larger effect on cut length accuracy than the fly wheel speed Blade Speed button allows you to input the number of blades on the cutter head and the cut length and the microprocessor determines the required cutter head speed follower mode SCX model only Comp button is a non functioning button SCE model only UGE048 0399 SCE SCX Combination Puller Cutter OPERATION 4 7 Pu LLER The puller control has several features that allow you to input setup information and monitor pulling process CONTROL Four digit display FE ATU RES When programming the control the four digit display shows control settings when programming functions are used During normal operation it displays either setpoint or actual speed tach Both setpoint and actu al speed are expressed as either linear speed fpm or cm min or rpm Speed buttons Use the Set Speed button to enter and monitor
90. r before opening the cutting chamber Always wait until the cutter head has stopped completely before opening the knife guard SCE SCX cutters are equipped with several safety devices to ensure safe operation Never remove or disable these devices to sustain pro duction Operating without these devices can Cause severe injury When the knife guard is opened the knife guard switch stops the cutter and prevents starting the cutter again Iwo proximity type safety switches prevent operation unless the cutter bushings are in place The Cutter Stop button activates a circuit that stops the knife UGE048 0399 SCE SCX Combination Puller Cutter MAINTENANCE 5 3 PREVENTATIVE Daily O Checking puller belts for wear M Al NTEN ANCE If a belt shows sign of cracks tears or other damage replace it Follow the steps on page 5 18 O Checking puller belt tension SCH EDULE Check the belt tension as described on page 5 14 O Checking belt gap Check the belt gap as described on page 5 16 O Inspecting cutter blade s Clean sharpen or replace as needed see page 5 6 O Inspecting the blade mounting hardware Check the blade securing bolt and the holding pins see page 5 6 O Inspecting cutter bushing screws Check that the cutter bushing screws are secure see page 5 7 O Checking the closure latch on the knife guard See page 5 7 Inspecting unit alignment Proper alignment with other equipment on the line is critical for opt
91. r reverts to the previous value 6 1 6 TROUBLESHOOTING SCE SCX Combination Puller Cutter UGE048 0399 Three safety switches are included in SCE SCX cutter sec tions a keyed safety switch on the knife guard and a proximi R EPLACI NG ty switch on each cutter bushing A failure in any of these switches prevents the puller cutter from running SAFETY AND PROXIMITY Safety Switch SWITCHES If you suspect a problem with the keyed safety switch on the knife guard check for loose or damaged wires Replace the switch if wires appear to be undamaged Proximity Switches The proximity switches on the cutter bushings have LEDs that light when the bushing is sensed If an LED does not light when the bushing is in place 1 Check for loose or damaged wires 2 Remove the cutter bushing and make sure the proximity switch is properly positioned i e 0 010 from the bushing surface 3 Remove the proximity switch by loosening the set screw Test it by bringing an object close to the sen sor when the power is turned on If the LED does not light replace the proximity switch UGE048 0399 SCE SCX Combination Puller Cutter TROUBLESHOOTING 6 1 7 CHECKING THE SERVO AMPLIFIER ADJUSTING THE PROXIMITY SWITCHES 6 1 8 TROUBLESHOOTING The servo amplifier is equipped with a digital readout that can be seen through the viewing window on the electrical enclo sure This display shows amplifier status and error
92. re is useful for collecting samples during a production run SCE SCX Combination Puller Cutter UGE048 0399 Press the Set button and use the adjustment arrows to fine tune a preset cutter value during normal operation ADJ USTING In Timer mode adjust the time between cuts C UTTER P RES ET In Encoder and Follower modes adjust the length In Product mode adjust the hold off time VALU ES In Flywheel mode adjust blade speed SCX models only To use the Adjustment arrows Count up one digit by pressing and releasing the Up Edit adjustment arrow Increase the preset more rapidly by pressing and holding the Up Edit adjustment arrow Count down one digit by pressing and releasing the Down Edit adjustment arrow Decrease the preset more rapidly by pressing and hold ing the Down Edit adjustment arrow When the arrow is released the display holds the preset for an additional five seconds before returning to display the count in progress NOTE While the control allows you to switch cut ting modes during operation this is not recommended Stop cutting temporarily by setting Cut On Off to off This To STOP allows you to view the cutting blade through the window or perform other tasks without shutting down the cutter C UTTI NG TEMPORARILY You can shut down just the cutter portion of the combination puller cutter if you need to change or adjust cutter blades STOPPING ON LY 1 Turn Cut On Off dial to Off to
93. rea blade width Excessive blade thickness can cause frictional heat Use a thinner blade Change angle of the blade attack or the blade style to decrease the cut path area Use blade lubrication water etc or change lubricants See Appendix page D 1 Consider a blade wiping system The cutting edge should not have grind marks burrs or other imperfections Check the blade and replace if necessary Change to a different blade design See pages B 1 through B 6 If the extrudate is too cold it can fracture during cutting Raise the extrudate s tempera ture UGE048 0399 PRODUCT QUALITY PROBLEMS cont p Eta Fossiblecause Solution _____ Cracks at cut site UGE048 0399 The extrudate is too cold The blade speed is too high The bushings are not pro viding enough support during cutting The cutting blade is too sharp If using Nylon it may be cooling too quickly If the extrudate is too cold it can fracture or whiten during cutting Raise the extrudate s temperature High blade speeds can cause too much impact Lower the blade speed Change the bushing design to make them more supportive A blade that is too sharp can fracture some materials espe cially rigid PVC and nylons Slightly dull the blade If nylon is cooled too quickly its molecular structure may become unstable leading to poor physical properties Try more gradual cooling SCE SCX Combination Puller C
94. ring units 000 0 9999 secondary setpoint 22 Engineering units 000 0 9999 primary display 23 Engineering units 000 0 9999 secondary display Phase Control 29 Recovery multiplier 0 100 Scaling 30 PPR external 1 9999 reference input 31 PPR feedback input 1 9999 60 32 PPR auxiliary input 1 9999 33 Max RPM external 1 9999 reference input primary mode 34 Max RPM feedback 1 9999 1750 primary mode 35 Max RPM auxiliary 1 9999 Document number PULLER CONTROL SETTINGS PULLER CONTROL SETTINGS If the control s memory is cor rupted by electrical noise or static you may need to reset the control parameters APPENDIX F 1 D U LLE R Code Parameter Range Default Customer 36 Max RPM external 1 9999 CONTROL reference input secondary mode 37 Max RPM feedback 1 9999 S ETTI NGS secondary mode 38 Max RPM auxiliary 1 9999 input secondary mode Scaling Format Selection and Control 60 Output format 1 2 61 Primary scaling mode 0 3 01 62 Secondary scaling mode 0 3 63 Primary display mode 1 2 01 64 Secondary display mode 1 2 Tuning 65 Gain 0 9999 66 Reset integral 0 9999 67 Rate derivative 0 9999 68 Trim authority 0 100 69 Rate threshold 0 100 Serial Communications 70 Device addresses 1 32 71 Baud rate 1 6 72 Character format 1 3 73 Control mask 0 255 Alarms and Limits 74 Zero speed logic 0 1 Scaling Format Selecti
95. rollers and pulleys for buildup especially inside grooves Clean if necessary 5 1 8 MAINTENANCE SCE SCX Combination Puller Cutter UGE048 0399 5 Reverse the process to install the new belt Make sure ribs inside the belt fit properly into grooves and keep tension on front and back sides as even as possi ble by alternating between the two threaded rods 6 Adjust belt tension and belt gap Follow the steps on pages 5 14 through 5 17 UGE048 0399 SCE SCX Combination Puller Cutter MAINTENANCE 5 1 9 CHECKING TORQUE WARNING No lubricants Do NOT use lubricants on the Trantorque cou pling device DANGER Sharp blades is Always wear cut resistant gloves when the cut _ ting chamber is open and when handling blades Never open cutting chamber without locking out the cutter power and waiting until AN the cutter head has stopped completely Handle blades with care at all times The Trantorque coupling device connects the servo motor to the cutter head It is important that it is tightened to the proper torque 1 Carefully remove the cutter blade 2 Check to make sure both the shaft and com ponent bore of the Trantorque coupling device are completely free of paint grease oil and dirt If necessary clean the surfaces with a non petroleum based solvent such as isopropyl alcohol 3 Use a torque wrench to make sure the nut is tight ened to the proper installation
96. s tain production Operating without these devices could lead to hazardous conditions that can cause severe injury Take all necessary precau tions when working around moving parts to pre vent body parts and clothing from being pulled into the machine OQ O O SCE SCX Combination Puller Cutter UGE048 0399 Plug in the power cord to restore power after any required maintenance Turn on the main power The cutter control per forms its bootup routine The Total and Length displays show Good day followed by LE 650 or Servo and EPROM ver sion number Test good or an error if encoun tered i e Length Error then Set to and the machine type for SCE cutters or servo version for SCX cutters The puller control performs RAM and PROM tests then enters the default STOP state At the end of the bootup routine the displays shows the current total count and the most recent length display While the cutter is booting up perform the next three steps 3 Make sure the E Stop button is in the out extended position NOTE If the E stop is pushed in the Guard light on the cutter control will not light even if all other safety features are in the proper positions for operation Push the blue lighted machine Reset button on the control panel The light should turn out NOTE The blue Reset button lights any time power is disconnect
97. s starting the cutter again Two proximity safety switches prevent cutter operation unless the cutter bushings are in place The Stop button on the cutter control acti vates a circuit that stops the knife UGE048 0399 SCE SCX Combination Puller Cutter INTRODUCTION 1 5 How To USE THE LOCKOUT DEVICE 1 6 INTRODUCTION WARNING Electrical hazard Before performing maintenance or repairs on this product disconnect and lock out electrical power sources to prevent injury from unexpect ed energization or start up A lockable device has been provided to isolate this product from potentially hazardous electricity Lockout is the preferred method of isolating machines or equipment from energy sources Your Conair product is equipped with the lockout device pictured below To use the lockout device 1 Stop or turn off the equipment 2 Isolate the equipment from elec trical power Turn the rotary discon nect switch to OFF or O position 3 Secure the device with an assigned lock or tag The equipment is now locked out CAUTION Moving parts Before removing lockout devices and returning switches to the ON position make sure that all personnel are clear of the machine tools have been removed and all safety guards are rein stalled ob SCE SCX Combination Puller Cutter UGE048 0399 DESCRIPTION What is the Combination Puller Cutter 0 0 e nae 2 2 Typical
98. ss to move down one engineering unit Readings displays on the digital display For more information refer to the belt gap sensor manual UGE048 0399 DicitaL BELT GAP SENSOR USING THE DIGITAL BELT GAP SENSOR APPENDIX AD J USTI NG THE You can adjust the opening and closing speed of the air cylin der assembly that operates the upper belt boom assembly by PN EUMATI C adjusting lifting and turning the air regulator handle UPPER BELT ACTUATOR G 2 APPENDIX PNEUMATIC UPPER BELT ACTUATOR UGE048 0399
99. st be corrected Results in Timer mode When testing repeatability in Timer mode the cutter is making on demand cuts at a set time interval i e one second inter vals The display shows Repeat Test and then the cut to park CP reading and the cut to cut CC reading The read ing is in milliseconds to the third decimal place i e 0 010 is 0 01 milliseconds or 10 microseconds CP is the peak time variance between the cut signal output preset time to the servo amplifier and the proximity switch just prior to the end of the cut cycle This is the repeatability of the cutting system to return to the home park position This value is higher than the PP reading since it includes the accel eration and deceleration contributed by the servo motor CC is the peak time variance between cuts Record and com pare the cut to cut number to the CC value recorded in encoder or product mode shows how much error is by external influences i e variation in belt puller speed encoder mount ing problem etc If the reading exceeds 9 999 the unit automatically resets the repeatability test displays the message Over Run and attempts to begin the test again If this occurs the error is too large and there is a definite fault that must be corrected Results in Encoder or Product mode The display shows Repeat Test and then the cut to park CP reading and the cut to cut CC reading The reading is in milliseconds to the third decimal
100. ted every 1 2 seconds Press the Set Speed button on the puller control The LED in the corner of the Set Speed button lights The numeric keypad is enabled Enter the desired setpoint in fpm or rpm If necessary press the Clear button to delete any errors Press Enter to accept the new setpoint The new setpoint is displayed SCE SCX Combination Puller Cutter MAKING ADJUSTMENTS DURING OPERATION MAKING LARGE CHANGES TO THE PULLER SPEED OperATION 4 17 FINE TUNING THE PULLER SPEED MAKING A MANUAL CUT COUNTING THE NUMBER OF CUTS 4 18 OPERATION Use the Up and Down arrows to adjust the setpoint The set point adjusts by one engineering unit each time an arrow is pressed If the Tach button is active the actual speed gradually changes to the new value If the Set Speed button is active the setpoint changes immediately NOTE These keys are always enabled to change the active setpoint Because they provide only slow scroll speeds use them to make small changes to the puller speed Perform a manual cut and reset the length by pressing the Reset Test button at any time during on demand cutting Pressing Reset Test has no effect during continuous cutting Pressing Reset Test when the Cut On Off button is in the Off position actuates a cut in flywheel and follower mode Count the number of cuts by pressing the Total On Off button Use the Reset button to return the count to zero This featu
101. tened belts result in distorted product and can lead to prema ture bearing failure 3 1 0 INSTALLATION SCE SCX Combination Puller Cutter UGE048 0399 4 Adjust belt tension if necessary Adjust tension by turning the threaded tension rods Keep tension on front and back edges top and bottom belts as even as possible 5 Fine tune tension Lower the belts to a gap of about 1 8 3 mm See Setting the Belt Gap page 3 12 From the upstream end of the belts look down the length of the belts at the gap between the belts If the gap is not even adjust the tension until the gap is even and measures 1 8 The shape of the gap should not be concave over tightened or convex too loose Check tension and readjust as necessary UGE048 0399 SCE SCX Combination Puller Cutter INSTALLATION 3 1 1 SETTING THE For the 320 models B ELT G AP The upper and lower belt boom assemblies are controlled by a common threaded rod Turn the hand wheel to move the belts up and down For the 426 and 639 models Each belt boom assembly is moved separately A single handle is used for both threaded rods To move the handle from one rod to the other lift it and place it on the other shaft You may have to rotate it slightly to engage the key way with the key on the shaft L mia 1 Place the hand wheel on the left threaded rod and turn to move the upper belt up and down 3 1 2 INSTALL
102. ter MAINTENANCE 5 1 3 TESTING BELT 1 Turn the main power disconnect to the off TENSION position 2 Remove the upper and lower belt guards Remove the screws attaching guards to unit four each top bottom front and rear Disconnect the safety cable upper guard Lift off and remove guard 3 Check belt tension Use a tension measuring tool Belts should be just tight enough to prevent slipping and the gap between the upper and lower belts should be even across the width of the belt NOTE It is important to have the proper belt ten sion Loose belts result in belt and product slippage over tightened belts result in distorted product and can lead to premature bearing failure 5 1 4 MAINTENANCE SCE SCX Combination Puller Cutter UGE048 0399 4 Adjust belt tension if necessary Adjust tension by turning the threaded tension rods Keep tension on front and back edges top and bottom belts as even as possible 5 Fine tune tension Lower the belts to a gap of about 1 8 3 mm See Adjusting Belt Gap page 3 12 From the upstream end of the belts look down the length of the belts at the gap between the belts If the gap is not even adjust the tension until the gap is even and measures 1 8 The shape of the gap should not be concave over tightened or convex too loose Check tension and readjust as necessary UGE048 0399 SCE SCX Combination Puller Cutter M
103. tions WARNING Improper installation oper ation or servicing may result in equipment damage or personal injury This equipment should only be installed adjust ed and serviced by qualified technical person nel who are familiar with the construction oper ation and potential hazards of this type of machine All wiring disconnects and fuses should be installed by qualified electrical technicians in accordance with electrical codes in your region Always maintain a safe ground Do not operate the equipment at power levels other than what is specified on the machine serial tag and data plate UGE048 0399 SCE SCX Combination Puller Cutter INSTALLATION 3 3 POSITIONING THE 1 Move the combination puller cutter into posi tion Place the puller cutter in position downstream of tek pio ea the last sizing or cooling tank ULLER UUTTER CAUTION Lifting To avoid personal injury or damage to the cut ter lift the cutter using a forklift or hoist with straps that have been positioned at the combo s center of gravity Combination Puller Cutter 2 Align the puller cutter with the extrusion line 3 4 INSTALLATION SCE SCX Combination Puller Cutter UGE048 0399 3 Measure the centerline height of the extrudate as POSITIONING THE it exits the extrusion die Adjust all equipment on the Com BIN ATION extrusion line sizing tank cooling tanks puller cutter to mae PULLER CUTTER 4
104. ton enables disables automatic cutting Reset Test button has several functions It produces a sample cut during normal operation at the set blade speed while resetting the length count SCX model only The cut piece is not counted on the total counter It sets the length and scale factor presets to zero in programming mode Set button and Adjustment arrows are used to Change preset length Change preset scale factor Change cutting mode parameters Set blade amount SCX Flywheel mode only Set blade speed SCX only 4 4 OPERATION SCE SCX Combination Puller Cutter UGE048 0399 The adjustment arrows adjust some cutter parameters on a digit by digit basis CUTTER Use the up Edit button to increase the values of the CONTROL flashing digit The digit steps one unit with each press 0 follows 9 This button can also be used to FEATU RES adjust cut length during normal operation Use down Edit button to decrease the value of the flashing digit This button can also be used to adjust cut length during normal operation Use left Move button to select the digit to the left of the flashing digit The new digit flashes indicating it can be edited Use right Move button to select the digit to the right of the flashing digit The new digit flashes indicat ing it can be edited MAR Be NOTE You must press the Set button first before the arrow buttons Press the Set button again after using the arrow bu
105. trol Features 264 02 o4 vas ad de bet Pokaan eed 4 8 Combination Features sqiesene e 54eeuG Heeewed 29 4 9 Before SS sa cke wc das He eee ee ee eee Les 4 10 Powenne Up oc ag2erahe s Seeds os O 298406 2484505 4 11 Programming the Puller Speed n nannan 4 12 Setting the Blade Speed lt 2 cscedecieseese senses vees 4 12 Choosing the Cutting Mode s 2442052esedes ane eden 4 13 Setting the Cutting Mode 24c 0i0see064he04 eyen4 4 14 Setting the Prescale Value 2 0 ceo00dd xed eaeenen eda 4 15 Checking Cut Quality s25 2sse44s4eewsgesuee etio 4 16 Starting the Combination Puller Cutter 4 16 Making Adjustments During Operation 4 17 UGE048 0399 SCE SCX Combination Puller Cutter l TABLE OF CONTENTS OPERATION cont d Making Large Changes to the Puller Speed 4 17 Fine tuning the Puller Speed 2 222 402 2204 5040004 4 18 Making a Manual Cut o o 02 20 nece4 34d4ccned5u2 4 18 Counting the Number of Cuts sassnasauaa aean 4 18 Adjusting Cutter Preset Values 2 222 226 5e 2449504 4 4 19 Temporarily Stopping Cutting 22 0420 acegeueaaude 4 19 Stopping Only the Cutter 24 6 cab esa das ceed tas ee eds 4 19 Stopping the Combination Puller Cutter 4 20 Shutting Down the Combination Puller Cutter 4 20 MAINTENANCE 202 0002 eee eee DU Maintenance Features sis e0 e445 ese egies ives ans 5 2 Warnings and Cautions 24 242 hee eared wens Oia wie 5 2
106. tter blade s rotate and pass between the bushings cutting the extrudate Cut pieces are collected or carried away on a conveyor 9 Belts pull the extrudate through the puller to the cutter UGE048 0399 SCE SCX Combination Puller Cutter Extruded material enters from the upstream side DESCRIPTION 2 5 Com BIN ATION The Combination Puller Cutters have these features PULLER CUTTER FEATURES Eye level Controls Clear knife guard Belt adjustment 3 JCutter head with blade s 7 po Stop button pt Bs Belt guard Material inlet through SS AS cutter bushings o B Blade lubrication tray Puller belts TY Swivel casters and lockdown screws 2 6 DESCRIPTION SCE SCX Combination Puller Cutter UGE048 0399 SPECIFICATIONS A E 320SCX2 426SCX2 426SCX3 639SCX4 639SCX5 Performance characteristics Extrudate capacity in mm dia 1 75 445 1 75 445 2 75 699 3 75 953 4 75 1207 Blade drive motor Hp kW SCE cutter 2 5 1 86 2 5 1 86 2 5 1 86 3 8 2 8 3 8 2 8 High torque motor 3 8 2 8 3 8 2 8 3 8 2 8 SCX cutter 1 95 1 45 1 95 1 45 1 95 1 45 3 3 2 5 3 3 2 5 High torque motor 3 3 2 5 3 3 2 5 3 3 2 5 Puller drive motor Hp kW 1 0 0 75 1 5 1 1 1 5 1 1 1 5 1 1 1 5 1 1 Dimensions in mm
107. tter operation problems which focus on problems that are clearly related to the operation of the cutter s mechanical components and electrical control system Product quality concerns Extrudate quality problems may be related to Combination Puller Cutter operation Of course other sections of the extrusion line also influ ence the quality of the extruded product This section does not provide solutions to problems originating with other equipment on the extrusion line Additional troubleshooting help can be found in the documen taion manuals included with this User Guide 6 4 TROUBLESHOOTING SCE SCX Combination Puller Cutter UGE048 0399 Look in this section when either the puller control or motor is not working properly PULLER OPERATION PROBLEMS Symptom Possible cause Solution The puller creaks while run ning The puller does not start Controller stopped during power up PROM test 0 0 0 0 dis plays in the digital display Controller stopped during power up RAM test A number dis plays in the digital display Motor does not stop Motor does not run UGE048 0399 The belt is too tight The bearings are failing The E stop button is pushed in RAM failed PROM checksum com parison failed SCE SCX Combination Puller Cutter Check the belt tension loosen if necessary See Maintenance section page 5 14 Replace the bearings Pull out the E stop butt
108. ttons to enter the new data The Cutter Status buttons and lights provide information about the status of the cutting process Start Cutter button enables the drive Stop Cutter button disables the drive NOTE The servo motor amplifier is powered when the main disconnect is turned on The cutter head cannot be rotated by hand until the machine has been electrically isolated The lights above these two buttons let you know the status of the cutter Cut light lets you know when a cut output signal is gen erated during an on demand mode Park light lights when the flag on the cutter head passes the park sensor proximity switch or is given a signal from a simulated blade position that is generated by the drive Motor light lights when the Start Cutter button is pushed It lets you know the servo motor is enabled UGE048 0399 SCE SCX Combination Puller Cutter OPERATION 4 5 CUTTER CONTROL FEATURES 4 6 OPERATION Guard light lights when all safety devices including the E Stop and machine Reset buttons are in the correct operating positions Encoder A B lights indicate that the digital ring sensor on the puller motor is sensing signal changes The Cut Mode button and lights let you select the cut mode see which cut mode the cutter is in and set the blade speed for the SCX only They include Select button lets you choose the cutting mode Pressing the button moves you through the list of availabl
109. ures concerning installation operation and maintenance of this equipment Responsible safety procedures include Thorough review of this User Guide paying particular attention to hazard warnings appendices and related dia grams Thorough review of the equipment itself with careful attention to voltage sources intended use and warning labels Thorough review of instruction manuals for associated equipment Step by step adherence to instructions outlined in this User Guide SCE SCX Combination Puller Cutter UGE048 0399 We design equipment with the user s safety in mind You can A ATTENTI ON avoid the potential hazards identified on this machine by fol lowing the procedures outlined below and elsewhere in the RE AD THIS SO NO User Guide ONE GETS HURT DANGER Sharp blades Most injuries caused by knife blades occur when the cutter has been turned off Handle blades with care at all times Always wear cut resistant gloves when the cutting chamber is open and when handling blades Always lock out the cutter before opening the cutting chamber Always wait until the cutter head has stopped completely before opening the knife guard The puller cutter combo is equipped with sever al safety devices to ensure safe operation Never remove or disable these devices to sus tain production Operating without these devices can cause severe injury When the knife guard is opened the knife guard switc
110. ures such as maintenance DANGER Pinch Hazard Never remove or disable safety devices to sus tain production Operating without these devices could lead to hazardous conditions that can cause severe injury Walk through style belt guards which protect from injury but also allow side entry for ease of operation Upper and lower belt guards independently protect the operator from being caught in the belts or associated dri ven sheaves The power cord is attached to the upper guard by a receptacle on the rear side of the guard You must disconnect this power cord to remove the upper belt guard ensuring that the puller will not start if the upper guard is not in place The flip up safety switch on the discharge end of the upper belt guard allows operation only when in the down position If a finger or piece of clothing is caught on the upper belt and drawn in the guard flips up and immedi ately shuts off the power to the entire combi nation puller cutter SCE SCX Combination Puller Cutter UGE048 0399 The emergency stop E stop button is locat A ATTENTION ed on the control panel on top of the upper belt guard at the upstream end Pressing READ THIS SO NO either of these disconnects power to the ONE GETS HURT entire unit The E stop must be physically pulled up to reset the switch and start the combination puller cutter again When the knife guard is opened the knife guard switch stops the cutter and prevent
111. utter TROUBLESHOOTING 6 1 3 PRODUCT QUALITY PROBLEMS cont p 6 14 Symptom Cut is not square Possible cause The blade speed is too low The blade is misaligned The cutter bushings are not properly gapped The knife bevel is not symmetric For rigid products the puller is too close to the cutter TROUBLESHOOTING SCE SCX Combination Puller Cutter Solution Low blade speeds can cause excessive blade interruption Increase blade speed or decrease the blade cut path area Check that blade is 90 degrees relative to the bushing holder If the cutter bushings are not properly gapped the blade may be free to move with the extrudate Check and adjust if necessary See pages 3 9 and C 1 If the knife bevel is asymmet ric the blade will tend to move in the direction of the smaller bevel Be sure that the bevel is symmetric NOTE You can use this to your advantage with some rigid products There must be enough space between the puller and cutter to allow for the extrudate to stop during cutting UGE048 0399 Symptom Length of cut is incorrect UGE048 0399 Possible cause Repeatability is wrong Encoder input device problem There is a problem with the puller PRODUCT QUALITY PROBLEMS cont p Solution Test for repeatability See pages 6 20 and 6 21 Check encoder input device and clean Run repeatability test see pages 6 20 and 6 21 Run repeatability test

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