Static protection of machines for offset press machine maintenance
6.8 Static protection of the machine
The static protection of the machine refers to the protection of the machine when the machine is at a standstill. Some of the above-mentioned contents also belong to the static protection of the machine. Let's summarize and analyze it comprehensively below.
1. Cleaning is one of the important contents of machine state protection
First, ensure that all relative contact surfaces are clean, which is one of the key measures to reduce friction or wear. The main object of cleaning is the relative contact surface that is open on the outside, such as opening and closing the tooth cam and suction nozzle. There is no need to lubricate these parts, but if impurities are found on these surfaces, they need to be removed in time. Second, we must ensure the cleaning of other important parts, such as air pumps, air compressors, oil line filters, motor surfaces, electric eyes, etc. The cleaning of these parts is directly related to whether the machine can be in normal operation, so these parts need to be cleaned frequently. Once again, it is the cleaning of the materials used by the machine, such as ink, paper, water, rubber, printing plate, etc. The cleaning of these materials is conducive to ensuring the quality of the print, so you must be careful when selecting. In addition, the cleaning of the water, ink path, impression cylinder and shoulder iron has an extremely important impact on the quality of the print, so these parts need to be cleaned daily. The last thing to pay attention to is the cleanliness around the machine. Keeping the environment clean can prevent dust, impurities, etc. from falling into the relative contact parts on the machine, or falling into the oil, water, ink, and gas paths, which is also conducive to beauty.
2. Run Er is another important content in the maintenance of machine group
Lubrication includes oil lubrication, grease lubrication and self-lubrication. The oil bottle slide is used for high speed and heavy load, so if there is insufficient oil or a broken circuit on this road, the consequences are very serious. Under static conditions, it is necessary to check whether the oil level in the oil tank meets the normal working requirements, whether the filter of the oil circuit is clean, and whether the position of the drip pipe is accurate. In addition, it should be particularly pointed out that the shield of the machine should not be opened frequently to prevent dust from entering the oil circuit or the relative moving contact surface. Another point to note is that the oil number must be selected correctly (taking into account the temperature effect). Grease lubrication is used for low speed and light load. The effect of insufficient grease lubrication is not obvious, but for a long time, the lack of grease will cause wear and it is difficult to recover, so the grease expansion of the grease lubrication part should be replaced regularly. Sometimes it is difficult to add fat, and the oil gun cannot be shot. When this happens, some oil should be added to the butter (of course, the less oil, the better) to increase the fluidity of the fat. Self-lubrication uses the lubricating properties of the material itself for lubrication, such as the lubrication of the suction nozzle, etc. It should be noted that these parts should be kept clean.
Which parts on the machine need to be lubricated have been described in detail in the previous oil circuit analysis. Through analysis, you can check whether the layout of the oil circuit is accurate, whether there are any omissions and areas that need improvement. Be careful not to refuel in places that do not require refueling.
3. Safety precautions are also one of the essential contents in the static maintenance of the machine
Before starting the machine, be sure to check whether there are foreign objects inside the machine, especially when servicing the machine, you should pay attention to this point, if any, you should take it out in time. In addition, it is best not to put any items unrelated to the operation on the machine. Even if some items are indispensable, they should be placed in a safe and reliable place. They should not be placed randomly. Otherwise, due to machine vibration or other reasons, there are They may be brought into the machine and cause machine accidents. The safety switch on the machine should also be checked carefully to avoid uncontrollability after starting.
The accuracy detection of the machine is also a very important content in the maintenance of the machine. The accuracy of the machine is generally adjusted when the machine is adjusted, but it should be carefully checked during the repair or overhaul of the machine, such as the level detection of the machine.
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