A packaging box based on visual precision film covering

By using visual precision coating technology, a closed-loop control system is formed by combining high-precision adjustment components and tension sensors with servo motors. This solves the problem of low tension adjustment accuracy in traditional coating devices, achieves precise adjustment of film tension, and improves coating quality and production efficiency.

CN224477131UActive Publication Date: 2026-07-10WUHAN PENGHENG PACKAGING & PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUHAN PENGHENG PACKAGING & PRINTING CO LTD
Filing Date
2025-06-12
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional laminating equipment has low precision in its tension adjustment mechanism and slow dynamic response, which leads to frequent defects such as bubbles and wrinkles during the film lamination process, affecting product quality and production efficiency.

Method used

Employing visual precision coating technology, a closed-loop control system is formed by combining high-precision adjustment components and tension sensors with a servo motor to achieve precise adjustment of film tension. This includes worm gear drive, synchronous belt drive, and lead screw drive to ensure precise adjustment and synchronous operation of the tension roller.

Benefits of technology

The technology of tensioning device has been significantly improved, and the application of bubble and wrinkle technology has improved the quality of lamination and the yield of packaging boxes, reduced bubble and wrinkle defects, and improved the quality of lamination.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224477131U_ABST
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Abstract

The application relates to the packaging box processing technical field and discloses a packaging box based on visual precise film covering, which comprises a rack, a conveying belt is arranged on the inner side of the rack, a first mounting frame is fixedly connected to the upper side of the rack, two symmetrical moving seats are arranged on the inner side of the first mounting frame, and a rotating shaft is rotationally connected to the inner side of the two moving seats. The packaging box based on visual precise film covering is driven to rotate by the meshing transmission of the worm gear and the worm, the rotating motion is converted into the precise linear displacement of the moving seat through the screw rod, the adjusting precision of the tensioning roller is remarkably improved, then the stress state of the rotating shaft is detected in real time by the tension sensor and is fed back to the controller, closed-loop high-response adjustment of the film tension is realized, the synchronous assembly can guarantee the synchronous operation of the double internal thread rotating drums, the tensioning roller is smoothly adjusted to the film tension, the precise controllable tensioning force effectively inhibits the bubble and wrinkle defects, and the film covering quality and the yield of the packaging box are greatly improved.
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