Printing device for film of packaging bag and printing process thereof

Abstract

The invention discloses a printing device for a film of a packaging bag and a printing process thereof, belongs to the technical field of film production, and aims to solve the problems that when a printing roller rotates, printing ink adhered to the printing roller easily flies away at the edge position to form flying ink, and the flying ink is adhered to the film to influence the film printing quality. The problems that an existing printing device lacks the function of automatically adjusting the concentration of printing ink in a trough, and the printing quality of a thin film is affected due to the fact that the printing ink is too thick are solved. The end, close to the printing roller, of the clamping plate is controlled to tilt by pressing the handheld pressing plate, the clamping plate and the clamping base plate are used for clamping paperboard, the paperboard is suspended above the rotation starting end of the printing roller in cooperation with the U-shaped bracket to block flying ink, the feeder is arranged on one side of the ink groove, and the consistency sensor and the electronic viscometer are used for detecting the ink concentration. The ink tank, the ink transfer barrel and the ink barrel are communicated through the liquid conveying pipe, the discharging pipe and the liquid return pipe to circularly adjust and add the ink; the problem that the film printing quality is affected by misting ink and ink concentration is effectively solved.

Description

technical field [0001] The invention relates to the technical field of film production, specifically, a film printing device for packaging bags and a printing process thereof. Background technique [0002] A film is a thin, soft, transparent sheet. Made of plastic, adhesive, rubber or other materials. Thin film is scientifically explained as: a 2-dimensional material formed by depositing atoms, molecules or ions on the surface of a substrate. Example: optical film, composite film, superconducting film, polyester film, nylon film, plastic film, etc. Films are widely used in electronics, machinery, printing and other industries. [0003] After the film is processed and formed, in order to optimize its performance and color appearance, a layer of ink is generally printed on its outer wall. Film printing ink needs to use printing equipment. However, the existing film printing generally uses the printing roller to stick the paint in the trough and rotate it on the outer wall ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a printing device and printing process for the film of the packaging bag, aiming at solving the above-mentioned background technology, when the printing roller rotates, it is easy to cause the ink stuck on it to fly away at the edge position to form flying ink, flying ink Sticking to the film affects the printing quality of the film, and the existing printing equipment lacks the function of automatically adjusting the ink concentration in the trough. The thickness of the ink affects the uniformity of ink printing on the outer wall of the film. quality impact issues

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