Stretcher for producing film

Abstract

The invention relates to a stretcher for producing a film. The stretcher comprises a rack and further comprises a film feeding mechanism, a film collecting mechanism, a middle sliding seat and a transmission part, wherein the film feeding mechanism comprises a film feeding roller; the film collecting mechanism comprises a film collecting roller for collecting the film; the middle sliding seat is provided with a clamping mechanism used for clamping the film, and the film is conveyed from the film feeding roller to the middle sliding seat to be clamped and then is wound on the film collecting roller of the film collecting mechanism; the transmission part comprises a movable pulley and a transmission belt, the movable pulley is connected to the middle sliding seat, and the transmission belt is connected to the film collecting mechanism to drive the film collecting mechanism to move at the speed twice that of the middle sliding seat so as to stretch the film. According to the stretcher forproducing the film, the middle sliding seat and a film releasing mechanism as well as the middle sliding seat and the film collecting mechanism are used for synchronously stretching the film, so thatthe stretching efficiency of the clamping type stretcher is effectively improved.

Description

technical field [0001] The invention belongs to the field of film machinery production equipment, and in particular relates to a stretching machine used for film production. Background technique [0002] The stretching of polyimide film and polytetrachlorethylene film sold in the market is usually stretched by longitudinal or transverse stretching machine. The process generally used is unwinding, deoiling, longitudinal or transverse stretching, winding, Longitudinal or transverse stretching is to pull the film between the stretching rollers. When the stretching distance is long, the thickness of the film is easy to be uneven, and the film is easy to be broken. [0003] At present, there is also a miniaturized stretching machine, which stretches after clamping the film, and the stretching uniformity is better, but it can only stretch a section of film at a time, and the stretching efficiency is low. Contents of the invention [0004] The object of the present invention is ...

AI Technical Summary

Problems solved by technology

[0002] The stretching of polyimide film and polytetrachlorethylene film sold in the market is usually stretched by longitudinal or transverse stretching machine. The process generally used is unwinding, deoiling, longitudinal or transverse stretching, winding, Longitudinal or transverse stretching is to pull the film between the stretching rollers. When the stretching distance is long, the thickness of the film is easy to be uneven, and it is easy to break the film.

[0003] At present, there is also a miniaturized stretching machine, which stretches after clamping the film, and the stretching uniformity is better, but only one section of the film can be stretched at a time, and the stretching efficiency is low

Images