Printing ink scraper device of screen printing machine

Abstract

The invention discloses a printing ink scraper device of a screen printing machine, which comprises a scraper shaft extending into a printing cylinder of the screen printing machine, wherein the scraper shaft can be pivotally arranged in a manner eccentric to the printing cylinder, a shaft body of the scraper shaft is hollow, the scraper shaft is connected with a printing ink supply device, the surface of the scraper shaft is provided with an ink outlet, the scraper shaft is provided with a scraper, a regulating mechanism is connected to the scraper shaft and comprises a connecting rod, one end of the connecting rod is sleeved with the scraper shaft, the middle of the connecting rod is hinged on a stand of the printing cylinder, one end far away from the scraper shaft, of the connecting rod is hinged with the output end of a drive device, the drive device drives the connecting rod to rotate around a hinge at the middle of the connecting rod; and the drive device is connected with a control system of the screen printing machine. The drive device drives the connecting rod to rotate for driving the scraper shaft to pivot, the pivot angle of the scraper shaft is controlled by controlling the feeding amount of the drive device by the control system, thus automatic regulation of the printing ink scraper device can be realized, the regulating efficiency is high and the regulating accuracy is high.

Description

technical field [0001] The invention relates to the technical field of screen printing equipment, in particular to an ink scraper device of a screen printing machine. Background technique [0002] Screen printing machine (screen printing machine) is a common printing machine for printing text and images, and generally consists of inking, embossing, conveying and other mechanisms. Its working principle is: first make the printing plate of the text and image to be printed, install the printing plate on the screen printing machine, and then apply the ink to the place where the text and image are on the printing plate manually or by the screen printing machine, and then directly or Indirect transfer onto substrates such as webbing, sheet metal, plastic, leather, wood, glass and ceramics to reproduce the same print as the printing plate. [0003] The roller structure is a common structure of the screen printing machine, which mainly includes a pair of synchronous and counter-rot...

AI Technical Summary

Problems solved by technology

[0004] However, in the existing screen printing machines, the angle adjustment of the ink scraper is generally adjusted manually. This adjustment method has the following defects: 1. It is difficult to achieve accurate adjustment, and the adjustment effect depends on the experience of the operator; 2. The efficiency is low. The adjustment effect can only be known from the test results of the printed matter. Therefore, the adjustment process cycle of adjusting the angle of the scraper——test printing operation—testing the printing effect—feedback and adjusting the angle of the scraper again is long

Images