Cleaning method and cleaning device for ink wiping roller of gravure press

Abstract

The invention discloses a cleaning method and a cleaning device for an ink wiping roller of a gravure press. The cleaning device comprises a scraper arranged on the lower side of a wiping roller and hair brushes, and is characterized by comprising a spray structure and a soaking structure which are arranged in a wiping tank, wherein the spray structure can spray a cleaning fluid to the ink wiping roller, and the cleaning fluid flows into the soaking structure, so that a cylindrical surface of the ink wiping roller can be soaked and wiped continuously, and a hybrid ink wiping roller cleaning device is formed. The cleaning method comprises the steps of wiping ink through spraying and wiping the ink through soaking, wherein in the step of wiping the ink through spraying, the cleaning fluid is collected below a roller body of the ink wiping roller, the roller body is soaked, and a preset fluid level is kept horizontal, so that the cylindrical surface of the ink wiping roller can be further soaked and wiped, and the cleaning fluid and the ink remained on the roller body are scraped by the drying scraper. According to the method and the device, soaking type ink wiping and spraying type ink wiping are combined, and the cylindrical surface of the ink wiping roller is wiped by soaking and intensively wiped by spraying, so that the fluid amount can be reduced, and the consumption of related chemicals and water resources can be reduced.

Description

technical field [0001] The invention relates to a cleaning technology for engraving gravure printing equipment, in particular to a cleaning method and device for an ink wiping roller of a gravure printing machine. Background technique [0002] The ink wiping roller in the ink wiping device of the engraving gravure printing machine wipes off the excess ink outside the pattern on the engraving gravure of the printing machine, and uses the ink wiping cleaning liquid and the supporting mechanism to quickly wipe and clean the rotating ink wiping roller, so that the cleaning The clean ink wiping roller continuously wipes the printing plate to ensure high-speed printing. [0003] At present, most banknote printing enterprises in the world use two distinctive ink cleaning methods: spraying type and traditional soaking type. For the structure, please refer to Figure 1A , Figure 1B . [0004] Figure 1A It is a schematic diagram of the cleaning method of the existing soaking wiper...

AI Technical Summary

Problems solved by technology

The utilization rate of ink wiping cleaning liquid is very low, the consumption is large, and the treatment is difficult. The preparation of cleaning liquid equipment and waste liquid recycling equipment have a large load and high maintenance costs.

[0007] Relatively speaking, the immersion-type ink wiping cleaning has the advantages of less cleaning liquid consumption, high utilization rate, better treatment effect on low-speed gravure printing machines, and relatively simple post-treatment of waste liquid; its disadvantage is that the two ink wiping rollers when running at high speed The cleaning liquid at the end is seriously thrown away, and its axial movement also causes more leakage of the cleaning liquid, the surrounding environment is poor, and the liquid needs to be changed regularly, which is inconvenient to operate

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