Gravure ink supplying method

Abstract

The invention discloses a gravure ink supplying method. A constant-temperature ink barrel, an ink supplying device and an ink conveying mechanism are included; the constant-temperature ink barrel comprises an ink barrel body, a constant-temperature control box, a circulating pump and a first temperature sensor, the ink barrel body is provided with an ink containing cavity and an interlayer space,the interlayer space, the constant-temperature control box and the circulating pump are each provided with a liquid inlet and a liquid outlet, the liquid inlet of the constant-temperature control boxcommunicates with the liquid outlet of the interlayer space, the liquid outlet of the constant-temperature control box communicates with the liquid inlet of the circulating pump, and the liquid outletof the circulating pump communicates with the liquid inlet of the interlayer space; the first temperature sensor is arranged in the ink containing cavity of the ink barrel, and the signal output endof the first temperature sensor is electrically connected with the corresponding signal input end of the constant-temperature control box; the ink supplying device comprises an ink supplying groove; and the ink conveying mechanism can convey ink in the ink containing cavity of the ink barrel into the ink supplying groove. Through the gravure ink supplying method, the ink temperature can be kept stable, and thus the printing quality is ensured.

Description

technical field [0001] The invention relates to the technical field of printing, in particular to a gravure ink supply method. Background technique [0002] Gravure printing is that the gravure roller is immersed in the ink tank (or the ink supply roller is immersed in the ink tank, and the ink supply roller transfers the ink to the gravure roller), and the gravure roller passes through the scraper device to scrape off the blank part of the ink The ink is stored in the graphic part of the plate roller. Under a certain pressure of the rubber roller, the ink is transferred to the substrate to form the graphic, and then it is dried and cured in an oven to complete the printing process. During the printing process, the position of the cell of the version roller is fixed, but the printing ink will change with the length of printing time and the change of the ambient temperature. The change of ink temperature will lead to the change of ink viscosity, which will lead to such , Dir...

AI Technical Summary

Problems solved by technology

After a period of ink supply, the ink will flow out of the ink tank in various ways (for example, when the ink tank is full of ink and the ink tank continues to deliver ink to the ink tank, the ink will overflow from the edge of the ink tank; When the printing plate roller or ink supply roller in contact with the ink in the ink tank rotates, part of the ink will splash out; part of the ink scraped by the scraper will drop out of the ink tank), resulting in a large amount of waste of ink and improving Reduced printing production costs, and clean up hassle

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