UNION TOOL 15 Series, Manual

Page 1: ... UNION TOOL CORP Phone 574 267 3211 1144 North Detroit Street Fax 574 267 5703 P O Box 935 E Mail sales uniontoolcorp com Warsaw IN 46580 Web Site www uniontoolcorp com Date 7 19 2019 Revised 7 19 2019 The Union Tool Corp ...

Page 2: ... 8 9 D WIRING Page 9 E OPERATING INSTRUCTIONS Roll Adjustments Roll Change Out Page 10 14 F ROLL MOUNTINGS Feeding Before Starting Page 14 15 G PICKOFF FINGERS Page 16 H GUARDS Page 16 I DOCTOR ROLL SAFETY FEATURES Page 16 J LUBRICATION Page 17 K CLEANING Page 17 18 L TROUBLE SHOOTING Page 19 20 M MAINTENANCE CHECKLIST Page 21 N STANDARD FEATURES Page 22 28 ...

Page 3: ...o contact the Union Tool Corporation Technical Sales Department at 574 267 3211 Our hours are 8 00 A M through 5 00 P M Eastern Standard Time Monday through Friday Union Roller Coaters are designed to apply a smooth even controllable coating of liquid materials such as glue resinous adhesives drawing lubricants paint wax oil sizing silicone solutions etc to many reasonably flat surfaced substrates...

Page 4: ...an be made to accommodate almost any type of coating problem Many coaters have been designed to contain deburring rolls brush rolls squeegee rolls heated or chilled rolls in addition to coating rolls Coating rolls can be chrome plated steel or covered with a number of different coverings including but not limited to Neoprene Mechanical Neoprene EPDM Nitrile Silicone Gelatin Thiokol Buna N Aluminum...

Page 5: ...ring Installation Safety during Operation Safety during Servicing Failure to follow these recommendations may result in personal injury from electrocution and or equipment and property damage SAFETY DURING INSTALLATION Electrical 1 A protective electrical ground connection to a reliable earth ground is essential for safe operation Without one all accessible conductive components including knobs an...

Page 6: ...ndations Using incorrect or non recommended fuses can present a fire hazard Pneumatic Union Tool has installed a lockout three way manual valve in the air supply line to the filter regulator This valve makes it possible to relieve air pressure and lock out the pneumatic system before undertaking maintenance or repairs SAFETY DURING OPERATION DO NOT operate Union Tool equipment under the following ...

Page 7: ...uld service Union Tool equipment 3 To avoid personal injury never touch exposed connections and components while power is ON Dangerous voltages exist at several points in the equipment 4 Disconnect lock out and tag external electrical power before removing protective panels or replacing electrical components 5 Remove all jewelry rings watches etc before servicing equipment 6 If possible stand on a...

Page 8: ... 4 Make the power drop to the disconnect box The voltage should be clearly marked on the front of the disconnect box and on the electrical print inside the box 5 Make an air drop to the coater if the coater is equipped with a filter and regulator Please do not reduce the size of the lines of the air drop smaller than the supplied filter and regulator Make a visual check between the coating rolls a...

Page 9: ...olid level surface and a spirit level should be used longitudinally on the channel at the top of the machine and on the lateral top section of the frame The machine must be secured to the floor by bolts or equal to ensure stable running WIRING Make sure proper wiring is carried out to prevent damage to the circuit Refer to packing list or wiring diagram inside the electrical control box This will ...

Page 10: ...ngements and is the means of operating this assembly Turning this handwheel in the direction as indicated by the tag will adjust the gap between the upper coating roll and lower coating roll or lower back up roll This assembly is mounted on top of the machine at the end housing and includes a coupling to allow the top roll to be adjusted parallel to the bottom roll within a thousandth of an inch T...

Page 11: ...ew is located through a graduated collar to give you a precise degree of accuracy and control when turning the hand knob The unifeed is supplied with a mechanical digital indicator to give a precise reading of the doctor roll position in relationship to the coating roll This whole assembly is mounted on the upper bearing plates on Models A B and C The Model D is a bottom coater and this assembly i...

Page 12: ...e seal plates are a wear item and overtime will begin to leak When this occurs you will need to replace with new seal plates Before attempting to fill the trough feeler gauges should be used between the rolls at each end to ensure an even coat In theory to set a staring gap between these rolls the solids in the coating material and the desired dry film thickness should be known With these two fact...

Page 13: ...NGE OUT To remove the coating and doctor roll s follow these procedures 1 Remove seal plates 2 Remove end covers on both housings 3 Remove chain and sprockets from rolls to be replaced 4 Loosen roll bearings 4 bolts per bearing and collars which hold bearings in place 5 Slide bearings toward center of roll along journal keep the roll supported by overhead hoist and straps Care should be taken not ...

Page 14: ...djustment is done by the hex nut on the lower end of the elevating screw Minimum tension prevents damage to the rolls should a varied substrate thickness be passed through ROLL MOUNTINGS All rolls are mounted in self aligning ball bearings Self aligning seals effectively keep grease in and prevent entry of dirt regardless of alignment All bearings are mounted on smooth surfaces to ensure proper mo...

Page 15: ...ure the rolls are apart be sure the pickoff fingers outfeed table and infeed table are not touching the rolls Serious damage to the rolls or the machine will occur if these points are not checked and corrected before operation Careful reading of these instructions will ensure you of satisfactory operation Tighten all bolted pieces to the machine jarring and jolting during shipment may cause loosen...

Page 16: ...RDS Proper guards are installed and care should be taken to see that all guards are securely in place before the power is turned on DOCTOR ROLL SAFETY FEATURES The adjusting screw on the doctor roll assembly is spring loaded In event of a large object being caught in the trough of the rolls the pressure can be relieved by vigorously pushing the adjusting screw out of the slotted bracket on the bea...

Page 17: ...lls while coating product Any material left in the rolls when production is over will be wasted If both coating heads top and bottom were being used you do not need to move the top vertical adjustment If only the top coating head was used raise the top coating assembly to about 3 stop the coater and insert the cleanup pan The cleanup pan and catch pan may be lined with plastic or paper this will m...

Page 18: ... reverse This will allow all material between the rolls to be squeezed out from the bottom of the rolls into the cleanup pans or catch tray Repeat adding the cleanup material approximately 2 3 more times at which time all rolls should be cleaned of any coating material and only have a small amount of residue of cleanup material on them IMPORTANT Adjust doctor roll away from the coating roll to ens...

Page 19: ...roblem Possible Cause Corrective Action 1 The doctor roll stops rotating 1 Seal plates are too tight 2 Clutch needs adjusting to apply more torque 1 Loosen spring tension on seal plates 2 Straighten the tab on the lock washer and turn the nut by hand clockwise to apply more torque 1 The doctor roll drive chain jumping 1 Clutch needs adjusting to apply less torque 2 Spring tension needs to be incre...

Page 20: ...ating material 1 The seal plate spring tension may be too loose 2 You will need to check that the coating roll ends are flush with the doctor rolls as far as left to right 3 Check if the seal plates are grooved deeply or damaged and have been leaking you will need to replace the seal plates at this time 4 Check for damage on the rubber on the end of the roll 5 Check that the doctor roll is level w...

Page 21: ...mechanical digital indicator so it reads out correctly with the proper gap setting 9 The unifeed adjustment will need to be checked out for operation and wear as well If any parts show ware replace as required Check it for parallelism and make any adjustments as necessary and set the mechanical digital indicator to read out the gap setting for the opening of the roll 10 All motors will need to be ...

Page 22: ...Page 22 SERIES 5 15 45 ROLLER COATER STANDARD FEATURES The Union Tool Corp ...

Page 23: ...peed ratios will depend on the specific series of roller coater SLIDING WINDOW GUARDS All Union Tool coaters incorporate sliding window guards These window guards are located on the front and back side of the coater and are equipped with magnetic sensors so that the guards must be in place in order for the coater to operate These guards are an important safety feature and provide the operators to ...

Page 24: ...quipped with air cylinders the e stop will activate air valves so that the air cylinders raise the upper coating head The red pushbutton on the safety switch can also be pushed as an e stop in the event of an emergency When the emergency cable has been tripped the blue safety switch will be in the off position lowered To re set the safety switch click switch to the center position In order for the...

Page 25: ... two numbers are inches If the rolls have been recently changed or for some reason the gap is not parallel paralleling the rolls can easily done PARALLELING THE VERTICAL ADJUSTMENT thickness gap To parallel the rolls the spring loaded coupling that connects the shaft between the two vertical gear boxes must be pulled back This will allow one side to be adjusted without moving the other side It is ...

Page 26: ...ll more coating will be applied The adjustment for the doctor roll is called a Unifeed It is a single hand wheel that connects two 2 gear boxes that turn a screw moving the doctor roll on a horizontal plane PARALLELING THE UNIFEED ADJUSTMENT doctor roll to coating roll The unifeed incorporates a spring loaded coupling just as the single hand wheel for the substrate gap does By pulling back the cou...

Page 27: ...le either closer or farther away from the coating roll To parallel the rolls we recommend using a 015 feeler gauge When paralleling the rolls always make sure that the machine is turned off for safety purposes SEAL PLATES The UHMW seal plates ensure that the coating material is held between the coating roll and doctor roll These seal plates are spring loaded and should be hand tightened against th...

Page 28: ... eliminates the lines on the coating roll when the doctor roll turns too fast The slower the doctor roll turns the smoother the coating is on the coating roll A lighter coating can also be achieved when the doctor roll is turning slower The drive incorporates a friction clutch so that the clutch can be set with just enough friction to turn the roll using the motor but light enough to allow the doc...