Importance of Routine Maintenance
The importance of routine maintenance of packaging and printing equipment
In the printing industry, with the advancement of technology, these printers currently used have high degree of automation, high printing speed, and good product quality. However, as the service life increases, the wear and damage of the equipment will also increase. In addition to natural wear and tear, some parts are accelerated wear and damage due to poor equipment operating conditions. If the normal maintenance and maintenance of the printing press cannot be performed normally, the technical capabilities of the equipment will be reduced, thereby reducing the printing quality. Improving the integrity of equipment, ensuring that printing quality does not decline, producing smoothly, and reducing losses caused by improper maintenance all further explain how important maintenance of printing equipment is.
The following points fully explain the importance and necessity of equipment maintenance:
1. Electrical aspects
Heidelberg offset presses are equipped with a lot of safety devices and are very agile. With a slight touch, the entire machine will stop working. Sometimes too much dust accumulates at the relay contacts inside the electrical control box of the machine, causing poor contact of the relay contacts and rendering the machine inoperable.
There are many other similar problems, such as the excessive accumulation of dust within the motor will be the image of the brush holder movement and reset, and the image of the carbon brush on the carbon brush holder pressing force, so that the brush and the copper head of the commutator Poor contact can also cause machine operation problems.
2, the oil road
In the oil circuit, the lubrication of production equipment is an important component of equipment maintenance. Keeping the printer's oil path open affects the lubrication of the entire machine's flow components. It is necessary to replace the oil on time and clean the oil through the filter device so that the oil flowing into the pipe does not contain impurities and avoid blockage of the oil line in the department. In particular, the needle roller bearings that support the rollers of a unit, if there is no lubrication and cooling of the oil, will cause long-term dry friction between the bearings and the roller shaft. When an abnormality is found, the shaft and the inner ring of the bearing are already glued. Lighter replacement of the inner ring; severe roller shaft damage.
3, gas path
The four-colour and five-colour offset presses that Heidelberg produced in the late 1980s all used starters to control the roller clutch pressure, the ink roller, the water roller's release plate, and the ink transfer roller's ink transfer. Each unit of the multi-colour printing press has several 2/2-way control valves to control these actions. Controlling the piston movement of the cylinder can realize the action of the ink roller, the water roller separation plate and the ink transfer roller. Sometimes, because of the water in the control valve or the air cylinder, the air valve seal is damaged, which may cause the control valve or cylinder to leak, making the ink roller and the water roller from the bad situation. In addition, because the ink accumulates in the motion control mechanism, these flow components cause inflexible movement, which in turn increases the burden of the control valve and the gas cylinder, resulting in a fragile control valve seal and a more deformable piston. In addition, because of the ageing of the air hose, the air leaked from the pipeline and the pressure in the pipeline dropped rapidly, the control valve could not be opened, and the clutch pressure action could not be completed. If the pressure is increased, the life of the image compressor will further accelerate the ageing of the hose. Therefore, the problem of solving the problem of the lifting and landing mechanism due to the change of the pressure of the valve or the air cylinder alone is not thorough, and often the operating mechanisms are cleaned and the operation is kept flexible. To ensure that the gas path does not leak, no water is a long-term solution.
In the printing industry, with the advancement of technology, these printers currently used have high degree of automation, high printing speed, and good product quality. However, as the service life increases, the wear and damage of the equipment will also increase. In addition to natural wear and tear, some parts are accelerated wear and damage due to poor equipment operating conditions. If the normal maintenance and maintenance of the printing press cannot be performed normally, the technical capabilities of the equipment will be reduced, thereby reducing the printing quality. Improving the integrity of equipment, ensuring that printing quality does not decline, producing smoothly, and reducing losses caused by improper maintenance all further explain how important maintenance of printing equipment is.
Heidelberg offset presses are equipped with a lot of safety devices and are very agile. With a slight touch, the entire machine will stop working. Sometimes too much dust accumulates at the relay contacts inside the electrical control box of the machine, causing poor contact of the relay contacts and rendering the machine inoperable.
There are many other similar problems, such as the excessive accumulation of dust within the motor will be the image of the brush holder movement and reset, and the image of the carbon brush on the carbon brush holder pressing force, so that the brush and the copper head of the commutator Poor contact can also cause machine operation problems.
3, gas path
The four-colour and five-colour offset presses that Heidelberg produced in the late 1980s all used starters to control the roller clutch pressure, the ink roller, the water roller's release plate, and the ink transfer roller's ink transfer. Each unit of the multi-colour printing press has several 2/2-way control valves to control these actions. Controlling the piston movement of the cylinder can realize the action of the ink roller, the water roller separation plate and the ink transfer roller. Sometimes, because of the water in the control valve or the air cylinder, the air valve seal is damaged, which may cause the control valve or cylinder to leak, making the ink roller and the water roller from the bad situation. In addition, because the ink accumulates in the motion control mechanism, these flow components cause inflexible movement, which in turn increases the burden of the control valve and the gas cylinder, resulting in a fragile control valve seal and a more deformable piston. In addition, because of the ageing of the air hose, the air leaked from the pipeline and the pressure in the pipeline dropped rapidly, the control valve could not be opened, and the clutch pressure action could not be completed. If the pressure is increased, the life of the image compressor will further accelerate the ageing of the hose. Therefore, the problem of solving the problem of the lifting and landing mechanism due to the change of the pressure of the valve or the air cylinder alone is not thorough, and often the operating mechanisms are cleaned and the operation is kept flexible. To ensure that the gas path does not leak, no water is a long-term solution.
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