Belt film heat-seal forming equipment

Abstract

The invention provides belt film heat-seal forming equipment and belongs to the technical field of greenhouse film forming. The belt film heat-seal forming equipment solves the technological problems of the high machining cost and the like of existing belt film heat-seal forming equipment. The belt film heat-seal forming equipment comprises a rack and a transmission roll shaft. The transmission roll shaft is supported by rack seats located at the two ends of the rack. The transmission roll shaft is formed by splicing two transversely-through hollow shafts. A solid connecting shaft is fixedly inserted into one end of each hollow shaft. The connecting shafts are correspondingly connected with the rack seats. A first splicing piece is fixedly inserted into the other end of one of the hollow shafts. A second splicing piece is fixedly inserted into the other end of the other hollow shaft. The two hollow shafts are positioned in the peripheral direction and axial direction by fixedly inserting the first splicing piece into the second splicing piece, and both the first splicing piece and the second splicing piece do not protrude out of the peripheral surfaces of the corresponding hollow shafts. The belt film heat-seal forming equipment has the beneficial effects that the flatness and the degree of tightness of ultra-wide type greenhouse films are guaranteed.

Description

technical field [0001] The invention belongs to the technical field of greenhouse film forming, and relates to a heat-synthesizing equipment with film. Background technique [0002] Greenhouse is a frame-covered structure with excellent thermal insulation performance. It is a very important facility in the process of modern agricultural production and has been widely used in agricultural production in most areas of our country. Plastic film is a commonly used material in agricultural greenhouses. In order to facilitate the cultivation of greenhouses, the demand for large-span greenhouses has increased, and the cost requirements have been reduced. It is necessary to improve the greenhouse film into a film, and heat-bond the high-strength polyester tape and the film. Therefore, A heat sealer is often required. [0003] For example, a longitudinal cable-membrane device heat-sealing machine disclosed in Chinese patent literature [Application No.: 201510615648.4] includes: a fra...

AI Technical Summary

Problems solved by technology

[0004] When it is necessary to continuously heat seal the ultra-wide greenhouse film of 6 meters or more, it is correspondingly necessary to use a roller shaft that matches the width of the film to realize the transmission of the film, that is, the length of the roller shaft must also reach 6 meters or more, using the solid roller structure in the integral molding of the existing heat sealing device will cause the quality of the roller to be large, especially the middle part of the roller will bend downward under the influence of its own weight, resulting in The outer peripheral surface of the roller shaft cannot maintain a cylindrical surface. When conveying the ultra-wide greenhouse film, due to the different tension forces on the two sides and the middle of the film, the film will be stretched, resulting in deformation and damage to the film during the conveying process. The flatness and tightness of the film are improved; at the same time, the processing of the roller shaft of 6 meters or more is difficult and the processing cost is high, which further leads to an increase in the cost of the heat sealing device

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