Gravure printing ink bubble removal device

Abstract

The invention discloses a gravure printing ink bubble removal device. The gravure printing ink bubble removal device comprises an ink fountain, a rubber roller groove, a gravure printing roller and arubber roller, wherein the gravure printing roller is arranged in the ink fountain; first rotary rods are connected to the axes of two side faces of the gravure printing roller, and the gravure printing roller is rotationally connected with the ink groove through first rotary bearings sleeving the first rotary rods; a clamping opening is formed in the upper end of an ink groove side plate on one side of the gravure printing roller; second threaded holes are drilled in the position, on the two sides of the clamping opening, of the ink groove; the rubber roller groove is fixed to the clamping opening through fixing bolts, is an L-shaped groove and communicates with the ink groove; and the rubber roller is arranged in the rubber roller groove, and the leftmost end of the rubber roller is tangential to the rightmost end of the gravure printing roller. According to the gravure printing ink bubble removal device, ink bubbles on the gravure printing roller are removed through vertical tangential extrusion of the rubber roller and the gravure printing roller, the removal efficiency is high, secondary adhesion of the bubbles is avoided, and meanwhile the service life of the rubber roller isprolonged.

Description

technical field [0001] The invention belongs to the technical field of gravure printing machine industry, and in particular relates to a device for removing air bubbles of gravure printing ink. Background technique [0002] The traditional gravure printing machine is ink-immersion gravure printing, which includes a gravure printing roller and a backing roller. The gravure printing roller is soaked in an ink tank filled with ink. When the substrate is worn, the scraper of the scraping device extends to the surface of the gravure printing roller to scrape off excess ink on the surface of the gravure printing roller. With the rotation of the gravure printing roller, the ink in the ink tank is brought up and printed on the substrate surface. However, this ink-immersed gravure printing machine, during the rotation of the gravure printing roller, tends to stir the ink in the ink tank to cause air bubbles to appear. In the hole, the ink on the mesh is insufficient or uneven, caus...

AI Technical Summary

Problems solved by technology

However, during the rotation of the gravure printing roller in this ink-immersion gravure printing machine, it is easy to stir the ink in the ink tank to cause air bubbles to appear. In the hole, the ink on the mesh is insufficient or uneven, causing the difference in printing color, seriously affecting the printing quality, and resulting in waste of printing substrates

[0003] However, in the current air bubble removal device, during the removal process, the removal rubber roller is arranged in the ink pool, which is easy to cause secondary adhesion of the air bubbles after the removal is completed, and the removal rubber roller is arranged at the bottom of the ink tank, which is not easy to disassemble and install. Cause maintenance and testing difficulties, bring trouble to the work of the staff

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