Lubrication is an important part of the use and maintenance of offset presses. Correctly and reasonably lubricating equipment can reduce harmful friction and wear of parts, prolong the service life of offset press, prevent parts from rust and heat deformation, give full play to the performance of offset press, and reduce functional loss.
First, improve the understanding of offset printing machine lubrication Offset press is a more sophisticated equipment, offset press operation, gear, cam, chain, open and close the relative movement of the friction will produce friction, resulting in wear. The most cost-effective way to reduce component wear is lubrication. Lubrication has the important functions of reducing wear, corrosion protection, heat dissipation, sealing, damping and damping.
Second, the establishment of a lubrication management system 1. The establishment of a list of standard materials for the lubricating materials, the classification of the lubricating material for the lubrication plan, lubrication, lubrication material selection.
2. Prepare a lubrication plan. According to the "five-setting" principle of lubrication, daily lubrication, weekly lubrication, monthly lubrication, seasonal lubrication, and annual lubrication plan are formulated and a lubrication chart is drawn.
3. Prepare a lubrication implementation report and an unscheduled lubrication implementation table.
4. Perform oil analysis. Record and record the lube oil quality test analysis to form a statistical report, which facilitates dynamic analysis to improve work.
5. Waste oil recycling.
6. Consumption statistics.
7. Formulate acceptance criteria for lubrication conditions. In conjunction with equipment management, maintenance, and use of personnel, according to the standard acceptance and record.
8. Formulate rewards and penalties. Linking the lubrication work with personal interests, its purpose is to ensure that the equipment is kept in a lazy manner and that the equipment is safe to operate.
Third, the implementation of the lubrication work - "five set" principle The so-called lubrication "five set", that is fixed, qualitative, quantitative, regular, fixed.
1. Fixed point. According to the operation manual of the offset press, analyze the performance characteristics of each offset press, determine the lubrication and lubrication points of each offset press, and mark the lubrication method and lubrication cycle in the form of a lubrication chart to facilitate the operator to become familiar with the structure of the offset press and achieve clear work. There is no omission.
2. Quality. Add lubricating grease and lubricant of the specified grade according to the location specified in the lubrication chart. Lubrication points, lubrication refueling tools should be kept clean. The lubricating area of ​​the offset press should be observed and tested, and the lubricating condition should be checked daily. Lubrication accidents such as oil leakage and oil leakage are processed, analyzed and recorded in a timely manner. Conditionally deal with lubricants According to national standards for working conditions testing, and filtering, reduce the impurity content, prevent dust, etc. into the printing press, thus ensuring the quality of lubricant and lubrication quality.
3. Quantitative. Under the premise of guaranteeing the good lubrication of the printing machine, based on the principle of saving oil, quantitative consumption of oil, recovery of waste oil, and timely disposal of oil spills should be implemented to avoid waste.
4. Timing. According to the time specified in the lubrication chart, the lubrication and oil change points of the lubrication and lubrication points of the printing press are cleaned to ensure timely and good lubrication of the printing press parts. And according to the actual use of each printing press and the speed of failure of lubricants and other factors, a reasonable adjustment to determine the lubrication cycle. Lubrication work must be carried out under static conditions of the machine. It is forbidden to add oil during start-up operation.
5 set people. Must establish a clear division of labor responsible for the lubrication of the work responsibility system, so that each lubrication part of the cleaning, plus oil change there is someone responsible.
Fourth, offset printing machine lubrication points 1. Feida parts of the lubrication can not be ignored. Several cam surfaces should be lubricated with a small amount of oil. It should be noted that the paper-feeding nozzle and the paper-removing nozzle are self-lubricating materials and do not need refueling, otherwise they will pile up paper powder and form sludge, which will accelerate wear.
2. Check the amount of oil in the universal coupling rubber case and add it.
3. The motor electromagnetic clutch should be filled with oil once a week.
4. Paper feed teeth directly affect the accuracy of paper transfer, require flexible, accurate and stable action. Weekly feed grease shaft, drive cam and eccentric sleeves at both ends to supplement grease.
5. The accuracy and flexibility of the front gauge and side gauge are the guarantee of accurate paper positioning. Lubricating oil should also be added every week.
6. Do not drop oil on the feeder belt, the take-up roller, the motor pulley, and the ink roller when refueling, as the friction in these parts is beneficial.
7. Always check the working conditions of the oil path at the drum, such as whether the tubing is blocked or not. Rollers should also be wiped clean and apply a proper amount of grease.
8. The oil pool should be cleaned and replaced with oil every quarter. The oil shortage alarm indicator of the oil alarm valve signals that the oil pressure is not enough. The oil pipe at the highest position is no longer out of oil. At this time, the oil pool and the oil pump filter should be cleaned immediately, and the iron scraps attached to the magnetic block in the filter and the impurities outside the filter copper mesh should be cleaned to ensure the lubricating oil is clean. When refueling the sump, the height must not be less than the indicated level of the oil level; nor can it be too high, otherwise it will lead to oil leakage.
9. The paper-feeding teeth, impression cylinder fangs, delivery paper dents, and collection ribs should be cleaned and lubricated on a monthly basis to ensure that the sigh is consistent and flexible. Of course, the more lubricating oil is not added, the better, to avoid splashing out stained sheets.
10. The ink roller, the heavy roller bearing and the bearing seat should be greased once a month to ensure that the roller can rotate flexibly and be easily disassembled.
11. The opening plate of the offset press is exposed outside the wall plate, and the sludge should be cleaned before lubrication.
12. The lubrication of the chain is also very important. In particular, the delivery chain should be scrubbed and the oil cup must be refueled.
13. The safety bar joints should also be lubricated and should not be ignored.
14. Poor lubrication is an important cause of air pump damage, such as excessive temperature rise, excessive noise, and insufficient air force. Therefore, suitable air pump lubricants should be selected.
15. Do not apply lubricant to the machine pedal to prevent slipping.