Extend the service life of the offset press and improve the print quality

In order to prolong the service life of the offset press and effectively improve the printing quality, the most important issue is to strengthen the maintenance and the maintenance of the offset press.

1. The production management system should include the following:

1 In order to reduce the wear and tear of the machine part, the required cleaning management and time-based lubrication lubrication offset printing equipment system are established.

2 Safety procedures for the prevention of damage to machine parts.

3 In order to eliminate the hidden dangers of machine accidents in a timely manner, and replace the naturally worn parts of the machine in time, the regular inspection and regular maintenance system is provided.

2. The following points should be noted when refueling offset printing equipment:

1 Turn off the power when refueling the parts that need to be lubricated. Do not add fuel during start-up operation to prevent the oil canister from getting involved in the machine and cause machine or personal accidents.

2 In accordance with the order of feeding paper, rules, water, ink, embossing, and delivery, do not omit any oil hole that should be filled.

3 Do not add the wrong lubricating oil, avoid the oil when the oil is transferred, and the machine will be killed due to the wrong oil.

4 should pay attention to the degree of oil cleanliness, oil is not clean, there are impurities, should be filtered to prevent iron scraps and dust in the oil wear parts, to ensure smooth oil pump.

3. Care and maintenance of offset printing equipment, operators and maintenance personnel must do the following:

1 The operator must have a profound understanding of the performance and structural principles of the offset printing equipment, and be proficient and correctly adjusted to ensure that the machine operates properly. Offset of offset press should be promptly eliminated to avoid sick operation.

2 The environmental sanitation around offset printing workshop equipment should be kept clean and tidy, create a good working environment, and make all employees cultivate a good habit of civilized and healthy.

3 Timely dosing of lubricating oil, because the speed of offset printing equipment is at a high speed of 5000 sheets/hour, refueling has two roles: lubrication, and cooling. To ensure the smooth flow of oil. It is also necessary to conduct periodic inspections to inspect the wear of all major components and to avoid damage to the components due to sudden problems.

4 The offset printing shop shall formulate a set of rules for the implementation of equipment management, implement institutionalized and standardized equipment management, and strictly abide by safety technical operation procedures.

5 strengthen the usual minor repairs, select the replacement of the parts of the material, make spare parts spare parts work, in order to shorten the maintenance time, improve equipment utilization, to ensure the availability of offset printing equipment.

6 A technical file should be established for each offset printing equipment to record the wear of various repair parts in detail. Analyze the reasons, make corresponding conclusions, and accumulate experience from them.

7Improve the ability of graph reading, read the instruction manual of offset printing equipment, the electrical schematic diagram of offset printing equipment, master the use and maintenance of the electrical drive and the control part of the main engine, the principle of electric power drawing, the engineering knowledge of the drawings, and only read the drawings. Based on the above, the offset printing equipment can be repaired, and electric components must not be disassembled blindly.

4. In order to eliminate the hidden dangers of equipment accidents in a timely manner, each offset press is repaired once every six months, once in a year, and the overall inspection and analysis of the offset press is performed. The main inspection items and contents are as follows:

Check item:

1 The air pump of the paper-transporting system shall be inhaled to blow the air. The vacuum pump must be filled with vacuum oil in a timely manner. There must be no dust fibers, dirt, etc. in the wall of the gas-carrying rubber tube to keep the gas path open.

2 The grippers and their springs, the tightening degree of the paper-handling teeth and their springs, and the fixed adjusting screws of the plate, so as not to damage the rollers due to the jump of screws or plates.

3Front gauge self-locking mechanism, double sheet controller, safety bar on the paper feeding board, and bearings on the ink roller to prevent the roller from crashing into the gear after the bearing is broken.

(4) Take-up chain pins and adjusting screws, bearings on the rollers and rollers of the water roller, ink roller, etc., parts on the feeder, parts on the paper feeder, etc.

5. Check the content:

1 Firstly, check the parts that are easy to loosen. Because the offset press runs at a high speed, the parts that are most likely to be loosened and detached are the adjustment and fixing screws of the grippers and the paper feed teeth; the pins for the suction of the paper feeding machine and the delivery chain The pin and so on.

2 Check that the bearings worn on the bearings and parts are the most prominent. Severely worn parts are: roller bearings, gear bearings, balance cam bearings, and bearings on the ink roller. Worn bearings and gears must be replaced in time. Failure to do so may cause equipment failure.

3 Check whether the oil passages of the tubing, oil eye, and other locations are unobstructed and find that the blockage should be promptly eliminated.

(4) Check the paper feeder for lifting and traction of the suction iron, pinching pin of the delivery spanner, and the shaft of the oil pump, etc. These components are likely to be broken due to the high possibility of breakage and should be promptly renewed.