Clockwise rotation will increase inline feed rate. Page 7. OPERATION. Operation Description: The vibratory bowl assembly is a dynamically balanced,
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TABLE OF CONTENTS INTRODUCTION TECHNICAL TERMINOLOGY SAFETY GENERAL P REPARATION OPERATION TECHNICAL SPECIFICATIONS SETTINGS SYSTEM SETUP INFORMATION (see attached sheet) CHANGEOVER CONTROLS OPERATION OPERATION DESCRIPTION START UP PROCEDURE MAINTENANCE PREVENTATIVE MAINTENANCE CLEANI NG SCHEDULE AND PROCEDURES DAILY MAINTENANCE SCHEDULE WEEKLY MAINTENANCE SCHEDULE TROUBLE SHOOTING GUIDE SPECIAL MAINTENANCE PROCEDURES CLEARING PART JAMS BOWL, HOPPER AND INLINE TUNING SETTING AIR GAP (COIL GAP) SPRING R EPLACEMENT ADJUSTING BOWL, HOPPER AND INLINE FEED RATES CONTROLLER INSTRUCTIONS WARRANTY AND PARTS WARRANTY ORDERING INFORMATION PARTS LIST NOTE: Not all sections of this manual will be used for all systems. This is a basic manual. I f you have any questions, please feel free to call United Toolers of Illinois (UTI) at 779 – 423 – 0548.
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INTRODUCTION Read this manual prior to operating your United Toolers of Illinois ( UTI ) equipment. The informati o n is necessary for safe operation and opt imal performance. Improper operation may result in personal injury or equipment damage. This manual should be considered a permanent part of your equi p ment and should remain with the equipment at all times. All information, illustrations, and specificatio ns in this manual are based on the latest information available at the time of publication. We reserve the right to make changes anytime without notice. Common Feeder Terminology, as used by UTI Air Jet: Small diameter tubing used to assist in moving or orienting parts. Air is adjusted by trial and error. Air jets are used sparingly. Amplitude Control: A controller that uses voltage change to control speed. Back Pressure: The force of the parts pushing one against the other as they are fed. Back Pressu re Relief Device: A sensor used to detect part levels in the discharge to control a solenoi d that blows air to remove parts from the tooling. Used to keep difficult parts from jamming in tooling areas, or to keep multiple lane systems even. Back Pressure Relief Tooling (Bubble – Off): The area just prior to the entrance of the confined are a where the parts will buckle if the discharge is full, the parts can then re – circulate in the feeder. Bowl Basic: The cylindrical “vertical” band and its internal tracks. Each bowl basic is custom fabricated per part and feed specifications, band height and diameter, internal track separation (height distance between tracks) angle and width. External Tooling: Any construction outside of the cylindrical “vertical” band. Th is tooling selects, separates, orients parts and relieves pressure build – up on oriented parts. A rule of thumb for a basic tooling area extending from the band/bowl diameter is 1/3 the bowl diameter. Bowl Tuning: A technical/craft to develop maximum sprin g energy level but to keep the coil assembly cool. Changing spring tension of the drive unit to allow the feeder mass to return to its neutral position before the next magnetic pulse takes over. Confinement: A section of the feeder used to control parts t hrough the selector, or discharge chute. Confinements are provided to allow access to parts by removing a bolted on section. Counter – Balance Weight: A piece of metal of predetermined size and weight that is added to the exterior of the feeder at a locatio n determined by a counter – balance wheel to off – set the weight of the external tooling. Dirt Chute/Dirt Relief: Used to discharge small particles of foreign material from the feeder. Must not be larger than the smallest dimension of the parts being used in the feeder. Discharge Chute: The end of the feeder bowl where fully oriented parts are staged for transition to a track, conveyor, or other device. Down Angle Discharge Chute: Used to assist parts from the vibratory parts feeder into a gravity track sec tion or to meet a customer specification.
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Escapement: A mechanical device placed at the end of the feeder discharge that allows only one part at a time to move into another place, such as a dead nest, to be picked up by a placing device. Fan: An adjust able gap which allows part to swing or hang and separate. Feed Rate: The number of parts per minute or hour discharged from the vibratory parts feeder to maintain production requirements set by the manufacturer. It is good practice to require a 20% higher feed rate of the feeder bowl than the equipment it is supplying product too. Horizontal Cam: An irregular shaped piece of metal placed inside the feeder above the parts at different points to control level of parts on the track. Used to reduce the amount of product as it is tran s ferred up the internal tracks. Inline Vibratory Track/Feeder: A vibratory drive unit designed to produce a straight – line motion. Used with a straight track to transport parts from the feeder discharge to a dead nest or a pick up point for removal via the customer. When used with a feeder they are mounted on risers so the inline tooling can be matched to the feeder discharge. A line track is critical to achieve a consistent feed rate and product accumulation. Alternative Tracks to Vibratory: Gravity tracks and vertical magazines are ways of getting parts from one location to another. Gravity tracks set on an angle great enough that the gravity will pull the part to its proper location. A magazine is a channel in which oriented part s are stacked. Internal Tooling: Any construction inside of the cylindrical “vertical” band. This tooling selects, separates, orients and relieves pressure build – up on oriented parts. Typically used on simple to orientate product (headless pins, balls, di scs). The benefit of internal styled feeder bowls is reduced bowl size. There is very little material extending outside of the bowl diameter, unlike with an externally tooled bowl. Orientation: The position of the part as it exits the discharge required b y manufacturer specifications. Overhang: The amoun t of straight t rack tooling that extends beyond either end of the inline drive – mounting bar. Quick Dump Chute: A quick opening “window” used to purge the bowl to allow a quick par t change when multiple st yles or sizes of parts are being fed in the same feeder. Return Pan: An area attached to the band, so the parts that have rejected due to incorrect orientation can be re – circulated back into the bottom of the bowl. Running Surface: The portion of the dis charge chute that makes contact with product. The running surface is the surface specified for discharge height. Selector: Tooling that permits only oriented parts to pass. Miss – oriented parts are usually diverted to the return pan. Sweep: A strip of met al placed on the inside of the feeder bottom to guard the return hole and allow parts to flow evenly back up the track from the return pan.
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SAFETY General: UTI des igns and manufactures all of it s products so they can be operated safely. However, a s with any other piece of powered equipment, the operator must follow safe – operating practices at all times. Failure to do so could result in personal injury or damage to the equipment or property. Do not mechanically modify the feeder system to change it s performance beyond the original factory design and specifications, except with written approval from the manufacturer. Before installing, operating, or servicing the machine, carefully read and follow all of the safety instructions found in this manual and in ALL other literature you may receive. Be thoroughly familiar with the controls and proper use of the equipment. Preparation: Know how to stop the equipment and disconnect the power. Follow all local electrical and safety codes, along with the Natio nal Electrical Codes, (NEC) and the Occupational Safety and Health Act (OSHA). Make certain that the power source conforms to the requirements of the equipment. The equipment should match the line voltages, line frequency, and the equipment loads. Make sur e the equipment is properly gro u nded. Protect the power cable from contact with sharp objects or liquids. Always turn off controls and disconnect sources of electrical and/or pneumatic power before adjusting, lubricating, or repairing equipment, unless oth erwise specified. Each day, before operation, walk around the equipment and inspect for loose, missing, and/or damaged parts or part s out of adjustment. Perform all recommended maintenance procedures in a timely fashion. Be sure all personnel and loose too ls are clear of the equipment before turning on power. Operation: Eye protection should be worn at all times by personnel operating or maintaining equipment. Keep hands, arms, and other parts of the body and clothing away from moving parts. Maintain dry f ooting: stand on insulated surface. Keep hands, feet, floors, controls, and walking surfaces clean and free of fluid, water, or other liquid to minimize the possibility of slips and falls. Do not operate this equipment with electrical covers open or remove d. Dangerous voltages are present within the electrical enclosures. Do not bypass or render inoperative any safeguards or protective devices.
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CONTROLS Before installing and starting your equipment, review this section thoroughly. Familiarize yourself wi th the controls and indicators, their purpose, location and use. Main Power Switch: Controls the electrical power to the entire system. Flipping switch to OFF position will immediately shut down system. Bowl Power Switch: Control electrical power to the bowl. Bowl Potentiometer: Control bowl vibration. Counter – clockwise rotation will decrease length of bowl stroke. Clockwise rotation will increase bowl stoke. The number of strokes will remain constant to the power supply. Hopper Power Switch: Contro ls electrical power to the hopper. Hopper Potentiometer: Controls hopper vibration. Counter clock – wise rotation will decrease hopper feed rate. Clockwise rotation will increase hopper feed rate. Inline Power Switch: Controls electrical power to the inl ine. Inline Potentiometer: Controls inline vibration. Counter clock – wise rotation will decrease inline feed rate. Clockwise rotation will increase inline feed rate.
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MAINTENANCE Pr eventative Maintenance: A good maintenance program is the key to long and successful machine life and trouble – free operation. There are a few very important steps that you can perform in order to get the best performance from your UTI feeding equipment. Cl eaning Schedule and Procedures: NOTE: The primary cause of decreased system performance is the presence of oil and/or debris within the system from the parts and product atmospheres. Clean, dry parts and a clean system are essential for optimum feeder perf ormance. The frequency of the cleaning schedule is entirely dependent upon the operating environment. In conditions that are less than ideal, it may be necessary to perform cleaning procedures once a day, once a shift, or even more frequently. In very clea n environments, once a week or less may be adequate. It is the responsibility of the Purchaser to determine and adhere to an appropriate cleaning schedule. W ARNING: Turn off main power switch and disconnect power sources while performing cleaning procedure s. Parts: Parts must be clean and lubricant free. Do not reuse parts that have run through the system without first cleaning them. Bowl and Hopper: 1. Remove all parts before attempting to clean. 2. Remove any visible debris and foreign objects. 3. Clean by wiping down with lacquer thinner, acetone, or enamel reducer and a clean cloth. Daily Maintenance Schedule: Inspect the system for the presence of debris or oil and perform any necessary cleaning procedures. Weekly Maintenance Schedule: Inspect the system for pr oper tightness of all nuts, bolts, and screws to be sure the machine is in safe working and bottom spring clamp bolts, toe clamp bolts, and the coil bolts. WARNING: NEVER OIL THE DRIVE SPRINGS!
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TROUBLE SHOOTING GUIDE Most com m o n feeder systems failures: 1. 2. The power supply to the control may be inadequate. 3. The cord from the feeder to the co ntrol may be unplugged or damaged. 4. A fuse may be blown in the controller. 5. A coil may be shorted out. 6. A wire lead may be unplugged at the coil. 7. The gap between the coil and striker plate may be closed or damaged. 8. Metal shavings may have entered th e controller and shorted it out. 9. A foreign object may be lodged between the coil and striker plate. 10. The feeder bowl may have been attached to a rigid track, or the bowl and/or drive unit may be making contact with other equipment. 11. One or more springs m ay be cracked or broken.
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Potential Failure Mode Potential Effects of Failure Potential Causes of Failure Recommended Action(s) Responsibility Target Fails to feed any product, bowl is vibrating Starves down stream equipment of product Bad Product Turn equipment off and remove bad part Operator Product Jam Turn equipment off And remove jammed product Operator Wrong Product Verify product Production Manager Incorrect power service, drive coils overheat, fire potential Inspect coil temperatu re, Verify incoming power To equipment Electrical Technician Fails to feed at desired rate, bowl is vibrating Starves down stream equipment of product at desired rate Bad Product Inspect product for defects, flash, burrs, particulate, cleanliness , etc.. Operator Product level in bowl t oo high, too much product Review bowl spec/ operation sheet for optimum level Equipment Technician Product level in bowl too low, too much product Review bowl spec/ operation sheet for optimum level Equipm ent Technician Wrong Product Verify product Equipment Technician Static build – up Inspect product for possible static charge Equipment Technician Static build – up Install de – ionizing equipment at problem spot Equipment Technician Dirty/film build up on bowl, from product (oil, release, etc..) Inspect and clean internal internal surfaces with approved solvents. Equipment Technician Dirty/film build up on bowl, from product (oil, release, etc..) Revised product processin g/handling clean product before feed Equipment Technician Drive control setting to low Increase control setting (t o no more than 80%) Equipment Technician Drive spring damage/ wear Contact for service UTI (779) 423 – 0548 Unlevel feeder su pport table Inspect for table level And that all feet are Making firm contact with floor Equipment Technician Loose bolts/fasteners Inspect all bolts/fasteners for tightness Equipment Technician Incorrect power service, drive coils over he at, fire potential Inspect coil temperature, v erify incoming power t o equipment specifications Electrical Technician
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Potential Failure Mode Potential Effects of Failure Potential Causes of Failure Recommended Action(s) Responsibility Target Fails to feed, bowl is not vibrating Starves down stream equipment of product Incorrect power service, drive coils over heat, fire potential Inspect coil temperature, verify incoming power to equipment specifications Electrical Technician Power failure Check power switch Operator/ Electrical Technician Power failure Check power plug at Outlet receptacle Operator/ Electrical Technician Power failure Check system/controller fuse(s) Electrical Technician Power failure Check incomin g power from service Electrical Technician Power failure Check power to drive coil Electrical Technician Drive control setting too low Increase control setting (to no more than 80%) Equipment Technician Drive coil support failure In spect drive coil mounting For tightness and/or cracks. Set correct coil gap. Contact service. Equipment Technician / UTI (779) 423 – 0548 Controller failure After complete inspection, no power to coil/drivers, fuse replaced, power – OK Equipment Technician Alarming loud noise Damage to coil or striker plate Coil gap too close Check gap and adjust to specification sheet Equipment Technician Bowl discharge & track gap too close Check gaps and adjust Equipment Technician Poor feed ra te over transfer point Bowl or drive unit touching something Inspect bowl and drive unit, adjust accordingly Equipment Technician
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