A thermal synthesis device with film

Abstract

The invention provides a thermal synthesis forming device of a belt film, belongs to the technical field of machinery, and solves the problem of poor thermal synthesis effect caused by low stability of the existing thermal synthesis forming device. The thermal synthesis forming device of the belt film comprises a stand, a conveying roller group and an output roller group, wherein the stand comprises two stand seats; the two stand seats are connected through a main cross beam group; the main cross beam group comprises at least two cross beams I consisting of steel structures; two ends of the cross beams I are respectively fixed on the two stand seats; thermal synthesis tool bars are further fixed on the cross beams I; an upper guide roller for reversing a thin film to vertically convey the thin film and a lower guide roller for reversely outputting the thin film subjected to thermal synthesis are further arranged between the two stand seats; two ends of the upper guide roller are respectively connected to the two stand seats and located above the main cross beam group; and two ends of the lower guide roller are respectively connected to the two stand seats and located below the main cross beam group. The thermal synthesis forming device of the belt film can realize stably continuous thermal synthesis forming of all portions of an ultrawide thin film, and is relatively good in forming effect.

Description

technical field [0001] The invention belongs to the technical field of machinery, and relates to a heat-synthesizing device 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, Chinese patent application (application number: 201510615648.4) discloses a longitudinal cable-membrane device heat sealing machine, including: a frame, a feeding ...

AI Technical Summary

Problems solved by technology

[0004] Existing heat-sealing devices are only suitable for heat-sealing films with a general width of two or three meters. There are multiple heat-sealing film belts on the top, so it is necessary to set up multiple heat-sealing knife rows on the frame. Due to the large space span of the entire equipment and the influence of weight and other factors, the strength and stability of the entire frame are very high. , if the strength and stability of the frame are not good enough to meet the requirements, the stability and consistency of the heat-sealing knife row are poor after being fixed, and displacement and deflection are prone to occur, making it difficult to carry out continuous work on all parts of the ultra-wide film The heat-synthesizing type affects the effect of heat-sealing. If the frame of the existing heat-sealing device is only supported by two frame seats, it cannot meet the frame strength requirements of the ultra-wide film, even if it is between the two frame seats. Even if several ordinary beams are connected between them, due to the limitation of the strength of the beam itself, it is still difficult to meet the required strength requirements.

In this regard, the frame of the above-mentioned heat sealing device is provided with a plurality of vertical support reinforcement frames distributed along the horizontal direction between the two frame seats for auxiliary support to meet the requirements, but due to the setting of the support reinforcement frame, the heat sealing of the film It can only be conveyed horizontally. Because the width of the film is wide, it is easy to be affected by external objective factors such as gravity. When the film is heat-sealed, it is easy to stay, the stability is poor, and it cannot form a good tension, that is, it is easy to cause the film The tension of each place is inconsistent, so it is difficult to carry out continuous heat synthesis of the ultra-wide film, resulting in different effects and poor stability of the heat-synthesized film.

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