Eccentric shaft of side gauge device

Abstract

The invention discloses an eccentric shaft of a side gauge device. The eccentric shaft comprises an eccentric shaft body, wherein a needle roller bearing is sleeved on the eccentric shaft body, and the inner diameter of the needle roller bearing is same as the external diameter of the eccentric shaft body. According to the invention, the needle roller bearing with the external diameter close to that of a copper bush is used, the inner diameter of the needle roller bearing is same as the external diameter of the eccentric shaft body, and the lubrication degree of the needle roller bearing is far higher than that of the copper bush, so that friction is reduced, service life is greatly prolonged, and pull accuracy of the side gauge device is also improved; in normal condition, the eccentric shaft can be contentiously used for more than half a year, and under a better lubrication condition, the eccentric shaft can definitely work for one year, so that maintenance cost and complicated dismounting and mounting work load are both reduced.

Description

technical field [0001] The invention relates to a side gauge device in a gravure printing system, in particular to an eccentric shaft used for the side gauge device. Background technique [0002] The side gauge device includes an eccentric shaft assembly, such as figure 1 As shown, in work, the eccentric shaft is oscillating, and its oscillating angle is between 30 degrees and 45 degrees. For the needs of work, a copper sleeve 2 is set on the eccentric shaft. In use, it is found that both the copper sleeve 2 and the eccentric shaft 1 are prone to wear. The reason is that the copper sleeve and the eccentric shaft are made of different materials, the eccentric shaft is made of iron, and the friction coefficient of the eccentric shaft and the copper sleeve is relatively high. Large, it is difficult to accurately match the inner diameter of the copper sleeve and the outer diameter of the eccentric shaft. [0003] Under normal circumstances, it is necessary to replace the coppe...

AI Technical Summary

Problems solved by technology

In use, it is found that both the copper sleeve 2 and the eccentric shaft 1 are prone to wear. The reason is that the copper sleeve and the eccentric shaft are made of different materials, the eccentric shaft is made of iron, and the friction coefficient of the eccentric shaft and the copper sleeve is relatively high. Large, it is difficult to accurately match the inner diameter of the copper sleeve and the outer diameter of the eccentric shaft

[0003] Under normal circumstances, it is necessary to replace the copper sleeve after one week of continuous work. The entire side gauge device needs to be disassembled when replacing the copper sleeve. To replace the copper sleeve, the entire side gauge must be disassembled, so it is very inconvenient to disassemble and assemble. The amount is also very large, which also reduces the accuracy of the side gauge

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