A zero-damage processing technology of protective film

Abstract

The invention relates to a zero-damage processing technology for a protective film, which includes the following steps: 1), the membrane and the base film are unwound, the membrane is attached to the base film, and sent to the cutting system; 2), the membrane and the The bottom film first passes through the waste edge roller cutting unit to roll cut the edge of the film, and the cut waste edge is separated from the bottom film and the waste edge is recycled; 3), the excess part is rolled and collected, and the roll cut is 4) The diaphragm enters the pre-peeling area and is peeled off from the bottom film at a small angle. At this time, the diaphragm keeps moving forward in a straight line with inertia until the bottom film goes down. After moving to the peeling area, the diaphragm falls into the front diaphragm receiving frame, and the bottom film is rolled up. On the one hand, the present invention avoids the damage of the bottom film by quantitative roll cutting; Zero-damage curling.

Description

technical field [0001] The invention belongs to the technical field of protective film processing, and in particular relates to a zero-damage processing technology for a protective film. Background technique [0002] As the performance requirements of the protective film are getting higher and higher, therefore, the roll cutting process of the protective film tends to be dust-free and automatic. [0003] At present, after the protective film is cut or punched in multiple ways, the excess part is removed, and the cut excess part is collected through the tape and waste edge winding, so that the diaphragms of the protective film are distributed on the base film at intervals, Then, the membrane is peeled off from the bottom mold by the peeling mechanism to complete the processing of the membrane. [0004] Yet there is following defective in above-mentioned processing procedure: [0005] 1. During slitting or punching, it is difficult to control the cutting depth of the diaphra...

AI Technical Summary

Problems solved by technology

[0005] 1. During slitting or punching, it is difficult to control the cutting depth of the diaphragm, which can easily cause damage to the bottom film, which is not conducive to the reuse of the bottom film;

[0006] 2. Most of the peeling mechanisms used are roller-type glass mechanisms. Although the separation of the diaphragm and the bottom film can be achieved, there is no buffer process in the peeling process, and the separation of the diaphragm and the bottom film is directly achieved by the forced peeling mode. , therefore, to a certain extent, it will cause the deformation of the diaphragm, so that the flatness of the diaphragm cannot meet expectations. At the same time, the damage to the bottom mold is also relatively large, which is not conducive to the reuse of the bottom film

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