Fold-preventing spreading device for plastic film

Abstract

The invention relates to a fold-preventing spreading device for a plastic film. The fold-preventing spreading device comprises a supporting frame and a spreading device. The spreading device is installed on the left side face of the right end of the supporting frame. The spreading device comprises a spreading air cylinder, a pressing support, a supporting plate, a guide pillar, a spreading connecting plate, a wheel connecting pillar, a spreading wheel and a spreading spring. The spreading device can be used for evenly spreading the plastic film so that the plastic film can be subjected to thehot sealing action flatly. The outer end of the supporting plate is connected with a pressing frame in a sliding manner. The right end of the pressing frame is installed on the right side face of thesupporting plate through a pressing spring. The pressing frame can press the plastic film needing to be subjected to hot sealing in a stressed manner, and the hot sealing effect of the plastic film isfurther improved. By means of the fold-preventing spreading device for the plastic film, the problems that when an existing plastic film is subjected to hot sealing, spreading cannot be conducted atthe upper portion and the lower portion of the plastic film at the same time, folds can occur on the plastic film, and the hot sealing area of the plastic film cannot be limited in a stressed manner can be solved.

Description

technical field [0001] The invention relates to the field of plastic film production, in particular to an anti-wrinkle flattening device for plastic films. Background technique [0002] Plastic films are divided into single-layer and double-layer during production. Double-layer plastic films often need to be heat-sealed during use, so that the double-layer plastic films form a bag structure. Plastic films in small plastic product processing workshops Heat-sealing is often carried out manually. The problems in heat-sealing plastic films in this way are as follows. The plastic film cannot be flattened up and down at the same time, so that the area that needs to be heat-sealed cannot be stretched straight. It is easy to produce defective products, and there will be wrinkles between plastic films, which seriously affects the quality of plastic products. It is impossible to focus on the heat-sealing area of ​​plastic films, making the heat-sealing of plastic products not firm, et...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides an anti-wrinkle flattening device for plastic films, which can solve the problem that the existing plastic films cannot be flattened up and down simultaneously when the existing plastic films are heat-sealed, and there will be wrinkles between the plastic films, which cannot be flattened. Focusing on the heat-sealing area of ​​the plastic film, etc., can realize the function of evenly spreading the plastic film before heat-sealing. The plastic film can be flattened up and down at the same time, and there will be no wrinkles between the plastic films. , The advantages of being able to focus on the heat-sealing area of ​​the plastic film, etc.

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