Circulating high-efficiency film cutting and pasting machine and film cutting and pasting method

Abstract

The invention discloses a circulating high-efficiency film cutting and pasting machine and a film cutting and pasting method. The circulating high-efficiency film cutting and pasting machine is used for cutting a thin film on the surface of a film covering piece, the film covering piece comprises a substrate and a thin film covering the surface of the substrate, the circulating high-efficiency film cutting and pasting machine comprises a material pressing shaft, a film tearing shaft, a film pasting shaft, a material receiving shaft, a film cutting knife and a traction device; the traction device is used for tracting the film covering piece to move in the cutting process; the material pressing shaft, the film tearing shaft, the film pasting shaft and the material receiving shaft are arranged sequentially in the moving directing of the film covering piece; the material pressing shaft, the film tearing shaft, the film pasting shaft and the material receiving shaft are all located above the film covering piece, the film cutting knife is located above the film tearing shaft, and the film cutting knife can be switched between the position being in contact with the upper surface of the film tearing shaft and the position not being in contact with the upper surface of the film tearing shaft; and the bottoms of the material pressing shaft and the film pasting shaft are correspondingly in contact with the upper surface of the film covering piece, and the material receiving shaft is away from the film covering piece.

Description

technical field [0001] The invention relates to the technical field of film cutting, in particular to a cycle-type high-efficiency film cutting and laminating machine and a film cutting and laminating method. Background technique [0002] As a hand-held mobile communication terminal device with a high penetration rate, the mobile phone has undergone several upgrades in just a few decades and has become the epitome of technological progress. As the "skin" of the mobile phone, the mobile phone shell is the part that users directly contact. It is not only a powerful protective umbrella for the mobile phone, but also can effectively reduce the invasion of dust, reduce the damage caused by accidental drops, and enhance the service life of the mobile phone. The most important thing is to improve the user's product experience. [0003] Mobile phone shells are usually made of metal plates through stamping and other technological means. In order to prevent the surface of the metal p...

AI Technical Summary

Problems solved by technology

[0003] Mobile phone shells are usually made of metal plates through stamping and other technological means. In order to prevent the surface of the metal plate from being polluted, the metal plate is usually covered with a flexible plastic film during the stamping process. However, the existence of the flexible plastic film often affects the stamping forming effect. For example, both sides of the metal plate usually need to be stamped to form a flange with a certain R angle. In the actual stamping process, when the area to be stamped on the metal plate is covered with a flexible plastic film, the stamping The R angle of the flanging formed is often smaller than the expected effect, thus failing to meet the design requirements. This requires subsequent grinding and other technological means to increase the R angle of the flanging to meet the design requirements, which results in a process failure. complicating the process, prolonging the process time, and reducing the production yield

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