The maintenance of single servo sleeve laminated flexographic printing machine requires systematic maintenance from seven aspects: routine cleaning, regular maintenance, key parts maintenance, lubrication management, equipment inspection, operation specification, environmental control, etc.. The specific plans are as follows:
1. Daily cleaning and maintenance.
Body Cleansing
Wipe the inside and outside of the equipment daily, focusing on paper powder, oil stains and ink stains to prevent dust from getting into the electrical box or transmission components.
Clean paper feeding table, impression cylinder and rubber cylinder shoulder iron to prevent ink accumulation from affecting printing accuracy.
Clean air filters and alcohol compensation systems weekly to check for any paper wool intrusion into electronic components such as relays and contactors.
Rubber roller and drum maintenance
After printing, immediately wipe rubber cylinder and impression cylinder, to prevent ink scale.
When the machine is down for a long time, remove rubber roller to avoid squeezing and deformation, and clean the ink path system (such as ink fountain roller and mesh roller).
Security protection
Cut off the power before wiping and wipe with a whole cloth to avoid debris residue.
Check that fasteners (such as bolts and nuts) are loose to prevent them from falling off during equipment operation.
2. 2, Regular maintenance system.
Level 1 maintenance (daily/weekly)
Daily: check the oil circuit is unobstructed, lubricate the drive chain and roller bearings, and record the operation status of the equipment.
Weekly: Thoroughly clean the ink delivery system (such as ink bucket and scraper), check the air pipe for aging and cracking, and clean the electrical control panel.
Level II maintenance (monthly/quarterly)
Monthly: Adjust the pressure of the drum system, check the airtight of the drive belt, clean the water tank and replace the refrigerant.
Quarter: Partial removal and cleaning of two shifts of equipment, with maintenance personnel assisting in inspecting vulnerable parts such as bearings and gears.
Level 3 maintenance (per year)
Disassemble key components (such as main transmission gears and mesh roller) for precision testing and replace worn parts.
Clean the lubrication system, replace oil seals, check circuit aging, update equipment technical file.
3. Special maintenance of key components.
Sleeve system
When replacing printing plate or screen roller, make sure the sleeve is concentric with the air cushion roller to avoid printing ghosting caused by eccentricity.
Periodically check casing surface wear, find casing deformation or scratch, should be replaced promptly.
Servo motor and transmission
Check the stability of the servo motor encoder connection once a month to remove dust from motor surface.
Check the tension of the transmission belt quarterly and adjust it to the specified value to prevent slipping or excessive wear.
Drying and cooling device
Check the drive status of the cooling roller once a week to remove dust from the air duct, and test the sensitivity of the thermostat once a month.
4, Lubrication management
lubrication interval
Daily: Add lubricant (eg 32 # mechanical oil) to transmission chain and roller bearings.
Weekly: Clean oil eyes and cups and replenish lubricating grease (such as lithium based grease).
Monthly: Check the level of oil in the main oil tank and change the oil (such as hydraulic fluid) if necessary.
Lubrication precautions
Avoid mixing different brands of lubricant to prevent chemical reactions from clogging the oil circuit.
Clean the oil nozzle before lubrication to prevent impurities from entering the lubrication point.
5.Equipment inspection and fault prevention
Routine inspection
Before turning on, check that the plug of the ink fountain is pressed tight to prevent ink leakage from contaminating the side wall of the device.
Running equipment at low speed, detect abnormal sound, check air loop for leakage (such as aging trachea, poor cylinder sealing, etc.).
Regular testing
Month: Use dial gauge to check the radial runout of the drum and adjust if the error exceeds 0.05mm.
Quarterly: Check the performance of electrical components (such as PLC, contactor) and replace ageing components.
Fault warning
Establish equipment technical files to record maintenance history and replacement cycle of vulnerable parts.
Analyze the causes of common faults (such as servo motor alarms and sleeve positioning deviations) and optimize the repair plan.
6, Operating standards and training.
Operator requirements
Tighten the cuffs and hem before operation, wear soft soled sneakers, and do not pile up clutter on equipment pedals.
Carry out daily maintenance in strict accordance with the operation manual, and prohibit overspeed or ``carrying disease "production and operation.
Training programmes
Organize equipment maintenance training, including lubrication point locations, fastener torque standards and fault code interpretation.
Carry out safety drills, simulate electrical leakage, mechanical jamming and other unexpected situations, and improve emergency response capabilities.
