Edge cutting device for film layering

Abstract

The invention belongs to the technical field of film edge cutting and particularly discloses an edge cutting device for film layering. The edge cutting device comprises a working table. The working table is sequentially provided with a deviation rectifying unit and an edge cutting unit in the conveying direction of films. The deviation rectifying unit comprises two deviation rectifying frames. Thetwo deviation rectifying frames are located on the two sides of the working table correspondingly. The two deviation rectifying frames are symmetrically arranged. Deviation rectifying blocks are correspondingly connected to the two deviation rectifying frames. The two deviation rectifying blocks are half I-shaped, the two deviation rectifying blocks are symmetrically arranged, and the deviation rectifying blocks are internally hollow. Air outlets right facing each other are formed in the upper sides and the lower sides of the deviation rectifying blocks. Air inlets are formed in the side walls of the deviation rectifying blocks. The air inlets are communicated with an air supply unit for introducing air to the deviation rectifying blocks. The edge cutting unit comprises two edge cutting frames. A cutting rod is connected between the two edge cutting frames, and cutters are correspondingly connected to the two ends of the cutting rod. According to the edge cutting device for film layering, the deviated thin films can be rectified, and the cut films are regular in shape.

Description

technical field [0001] The application of the present invention belongs to the technical field of film edge trimming, and specifically discloses an edge trimming device for film layering. Background technique [0002] Existing plastic film blowing machine is to be by extruder (extruder is molten state after plastics is through heating, extruding, is extruded by die head again, is blown into film bubble by compressed air simultaneously, the cross section of film bubble ring), and a traction roller installed above the die head and a take-up device, and a herringbone plate is arranged under the traction roller, through which the film bubble blown by the extruder die head Before coiling, it is extruded into two layers of interconnected flat films for coiling (because the cross-section of the bubble is circular, the bubble will be extruded into two layers of film after being squeezed by the herringbone plate ). [0003] Before the film is rolled up in the later stage, it is usu...

AI Technical Summary

Problems solved by technology

[0004] During the long-distance processing and transmission of the film, it is often due to the unstable operation of the equipment, or the material is shifted to one side due to changes in the external environment. When the shifted film enters the cutting equipment for cutting, it is easy to cause cutting out. The shape of the film is irregular, which affects the regularity of the film and the quality of the film, and affects the sales and normal use. At the same time, it is easy to cause the cutting area of ​​the film to be too large, resulting in material waste.

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