The key to extending the life of the offset press is repair and maintenance.
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In order to prolong the life of the offset press and effectively improve the printing quality, the most important issue is to strengthen the repair and maintenance of the offset press.
1. The production management system should include the following:
1 In order to reduce the wear and tear of machine parts, the prescribed cleaning management and on-time lubrication of the offset printing equipment system.
2 Safety procedures specified to prevent damage to machine components.
3 In order to timely eliminate the hidden dangers of machine accidents, and timely replace the natural wear parts of the machine, and the prescribed regular inspection and regular maintenance system.
2. Note on the offset printing equipment:
1When the parts to be lubricated are refueled, turn off the power supply, do not raise when starting up, and avoid the machine or personal accident when the oil spout is caught in the machine.
2 In accordance with the paper feeding, rules, water delivery, ink infusion, embossing, delivery, a certain order of refueling, do not miss any oil hole that should be refueled.
3 Do not add the wrong lubricant, avoid the oil of the varnish as the oil, and the machine is killed by the wrong oil.
4 should pay attention to the cleanliness of the oil, the oil is not clean, there are impurities, should be filtered to prevent iron scraps and dust in the oil from wearing parts, to ensure the smooth flow of the oil pump.
3. Maintenance and maintenance of offset printing equipment, operators and maintenance personnel must do the following:
1 The operator must have a deep understanding of the performance and structural principle of the offset printing equipment, so that it can be adjusted skillfully and correctly to ensure the reasonable operation of the machine. If the offset printing machine is faulty, it should be eliminated in time to avoid sick operation.
2 The environmental sanitation around the equipment of the offset printing workshop should be kept clean and tidy, creating a good working environment and making all employees cultivate a good habit of civilized hygiene.
3 Timing quantitative filling of lubricating oil, because the speed of the offset printing equipment is running at a high speed of 5000 sheets / h, refueling has two functions: one is lubrication; the other is cooling. To ensure the smooth flow of the oil. Regular inspections and inspections of the wear and tear of the main components are also required to avoid damage to the components due to sudden problems.
4 Offset printing workshop should formulate a set of equipment management implementation rules, institutionalize and standardize equipment management, and strictly abide by safety technical operating procedures.
5 Strengthen the usual minor repairs, select the materials for the replacement parts, and do the spare parts work for the vulnerable parts, so as to shorten the repair time, improve the equipment utilization rate, and ensure the integrity of the offset printing equipment.
6 For each offset printing equipment, it is necessary to establish a technical file, detail the wear and tear of various maintenance parts, analyze the reasons, make corresponding conclusions, and accumulate experience. Provide technical information for equipment overhaul and also provide reliable data for repair quality standardization.
7 Improve the ability to map, understand the instruction manual of the offset printing equipment, the electrical schematic diagram of the offset printing equipment, master the use and maintenance of the main electric drive and its control part, the principle of electric drag, the drawing is the engineering language, only understand the drawing On the basis of the repair of the offset printing equipment, do not blindly disassemble the electrical components.
4. In order to eliminate the hidden dangers of equipment accidents in time, each offset printing machine is regularly repaired once every six months, and once a year of overhaul, a comprehensive inspection and analysis of the offset printing machine. The main inspection items and contents are as follows:
Checked items:
1 The air pump of the paper feeding system, the air blowing and blowing, the vacuum pump should be filled with vacuum oil in time, and there should be no dust fibers or dirt in the rubber pipe wall of the gas transmission to keep the gas path unblocked.
2 The degree of tightening of the paper and its spring, the transfer paper and its spring, and the fixed adjustment screw of the plate-mounted plate, so as to prevent the roller from being damaged by the jump of the screw or the plate.
3 front self-locking mechanism, double-plate controller, safety bar on the paperboard and bearings on the ink roller to prevent the ball from falling due to the ball falling into the gear after the bearing is broken.
4 delivery chain pins and adjustment screws, water rollers, ink rollers and other rubber rollers and components on the components, components on the paper feeder and components on the paperboard.
Checked content:
1 First check the parts that are easy to loose. Because the offset printing machine runs at high speed, the parts that are most likely to loosen and fall off are the adjusting and fixing screws of the gripper and the transfer paper; the adjusting screw of the water roller and the ink roller; the suction of the paper feeder The pin, and the pin on the delivery chain.
2 Check the bearing, the bearing on the machine parts is the most prominent. The parts with severe wear are: roller bearings, gear bearings, balance cam bearings and bearings on both ends of the ink roller. Worn bearings and gears must be replaced in time, otherwise it will cause equipment failure.
3 Check whether the oil passages in the oil pipes, oil eyes and other places are unblocked, and find that the blockage should be eliminated in time.
4 Check the feeder lift iron traction, the transfer paper spring pin, and the oil pump mandrel. These parts are likely to be broken due to the large possibility of breakage.