Crease-resistant film pressing device for PE heat shrinkage film production

By using infrared sensors to monitor and correction rollers to correct deviations, combined with tension adjustment, the problems of wrinkles and uneven thickness in PE heat shrink film production have been solved, achieving high-quality film production.

CN223836744UActive Publication Date: 2026-01-27HENAN WEIHUA PACKAGING CO LTD
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Patent Information

Application Number
CN202520297150.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-01-27
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

PE heat shrink film is prone to wrinkles during production, and uneven thickness can occur due to production line deviation, affecting product quality.

Method used

Infrared sensors are used to monitor membrane edge deviation, and a telescopic cylinder drives the correction roller to correct the deviation. The tension is adjusted by a threaded rod to ensure that the membrane is in the center of the pressure roller. A guide roller is used to guide the membrane to ensure smooth transport.

Benefits of technology

This effectively avoids wrinkles in the film material, ensuring the production quality and thickness uniformity of the PE heat shrink film.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223836744U_ABST
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Abstract

The utility model discloses an anti-wrinkling film pressing device for producing a PE (Poly Ethylene) heat shrinkage film. The anti-wrinkling film pressing device comprises a base, the mounting table is arranged on the base; a telescopic air cylinder is arranged on one side of the upper end of the mounting table, the upper end of the mounting table is rotationally connected with a rotating frame and rotationally connected with one end of a telescopic rod of the telescopic air cylinder, a deviation rectifying roller is mounted on the inner wall of the rotating frame, and an infrared sensor is arranged on one side of the deviation rectifying roller. The two infrared sensors are started, the two infrared sensors monitor the edges of the two sides of the PE heat shrinkage film respectively, when the PE heat shrinkage film deviates, the telescopic air cylinder is started, the telescopic air cylinder pushes the rotating frame to the direction opposite to the deviation direction of the PE heat shrinkage film, friction is generated between the outer surface of the deviation rectifying roller and the PE heat shrinkage film, and the deviation rectifying roller is driven to rotate. By means of the structural design, when film pressing is carried out, the PE heat shrinkage film is located in the middle of the film pressing roller, and the production quality of the PE heat shrinkage film is guaranteed.
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