Ink jetting and supplying device of unit type intaglio press

Abstract

The invention relates to an ink jetting and supplying device of a unit type intaglio press. The device comprises an ink jetting tube assembly, a circulating pump, an ink fountain and an ink delivery roller assembly, wherein the ink jetting tube assembly comprises an ink jetting tube, a fixed support and an adjusting ring; the ink jetting tube is fixed on an ink delivery roller swing arm above an ink delivery roller by the fixed support; the adjusting ring is arranged on the ink jetting tube on the inner side of the fixed support; one side of the ink jetting tube is provided with an ink inlet hole; ink jetting holes are formed on the ink jetting tube and are opposite to a tangent position of a printing plate roller and the ink delivery roller; the ink delivery roller assembly comprises the ink delivery roller and the ink delivery roller swing arm; and the ink delivery roller is fixed on the ink delivery roller swing arm by a bearing and is arranged below the printing plate roller. By the structure, ink is directly jetted on the printing plate roller, and the ink delivery roller rolls the ink to fulfill the aim of fully defoaming, so that the evaporation of solvents is reduced, the fatigue rate of the ink is reduced, the ink is prevented from crusting, the disadvantages, such as ink lines, color difference and the like, are overcome, and the ink is not spattered even if the printing plate roller rotates at a high speed.

Description

technical field [0001] The invention relates to an ink supply device for a printing machine, in particular to an inkjet ink supply device for a unit type gravure printing machine. Background technique [0002] At present, the ink supply device of the printing machine adopts the method of directly dipping the printing plate into the ink tank or dipping the ink transfer roller into the ink tank to transfer ink. The structure of the ink tank is limited, and the amount of ink stored is too much, which will cause the ink on the ink tray to overflow and the ink skin produced by long-term printing, which not only pollutes the working environment, but also causes waste of raw materials. Bad defects such as ink, knife line, color difference, etc., greatly reduce the quality of printed products. Contents of the invention [0003] The purpose of the present invention is to provide a unit-type gravure printing machine ink-jet ink supply device, in the printing process, the amount of ...

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Problems solved by technology

[0002] At present, the ink supply device of the printing machine adopts the method of directly dipping the printing plate into the ink tank or dipping the ink transfer roller into the ink tank to transfer ink. The structure of the ink tank is limited, and the amount of ink stored is too much, which will cause the ink on the ink tray to overflow and the ink skin produced by long-term printing, which not only pollutes the working environment, but also causes waste of raw materials. Bad defects such as ink, knife line, color difference, etc., greatly reduce the quality of printed products

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