Plastic film unfolding frame

Abstract

The invention discloses a plastic film unfolding frame. The plastic film unfolding frame is mainly composed of an opening device, a cutter, a cutter supporting column, a circular truncated cone unfolding device, an air inlet pipe, a supporting frame, an unrolling roller and a rolling roller all of which are arranged in a line shape. The cutter is located at the middle position of the opening device. The opening device is in a tongue shape and is fixedly connected with the circular truncated cone unfolding device. The front end of the opening device is provided with air holes, and the surface of the circular truncated cone unfolding device is provided with air holes. The circular truncated cone unfolding device is fixed to the supporting frame. The supporting frame is provided with slidingrails. The air inlet pipe is connected to the rear part of the unfolding device. The unrolling roller is located in front of the opening device and is parallel to the opening device and guides a plastic film to enter the unfolding frame, and the purpose of blowing the double-layer film can be achieved through ventilation of the air holes in the front end. By means of the plastic film unfolding frame, same journey in the unfolding process of the film parts can be guaranteed, meanwhile, the contact area of the film and the unfolding frame is reduced through an air film, the problem caused by being pulled of the film in the process is avoided, and the quality level of the film is improved.

Description

technical field [0001] The invention relates to the field of plastic film processing equipment, in particular to a plastic film unfolding rack. Background technique [0002] The film unfolding frame is a kind of equipment widely used in the plastic film blown film processing process, which can divide and unfold the double-layer film blown by the blown film head into one layer. [0003] The working process of the traditional film unfolding frame is as follows: under the traction of the traction equipment, the flattened double-layer film is first cut by a cutter, and then the film is gradually stretched during the traction process by using a triangular unfolding frame that opens to both sides. And extended to a single layer. [0004] In the process of stretching the plastic film in the traditional stretching frame, the film will stick to the stretching frame and the sliding will be hindered. At the same time, the distance traveled by the stretched ends of the film will be lon...

AI Technical Summary

Problems solved by technology

[0004] In the process of stretching the plastic film in the traditional stretching frame, the film will stick to the stretching frame and the sliding will be hindered. At the same time, the distance traveled by the stretched ends of the film will be longer than the middle part of the film. These two factors It will cause the film to be pulled during the stretching process, and eventually the film thickness will be uneven or even the film will be torn.

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