Auxiliary feeding device of plastic bag production equipment

By combining the base assembly and the mobile lifting assembly, the problems of low feeding efficiency and poor centering accuracy of plastic bag production equipment are solved, realizing automatic centering, stable clamping and smooth tension establishment of film rolls, thus improving production efficiency and safety.

CN122276501APending Publication Date: 2026-06-26CHONGQING HONGZHOU PACKAGING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING HONGZHOU PACKAGING MATERIALS CO LTD
Filing Date
2026-04-29
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing plastic bag production equipment suffers from inefficient feeding methods, poor centering accuracy, insufficient clamping stability, large feeding impact, unstable tension establishment, poor adaptability, and insufficient safety.

Method used

The system employs a combination design of base assembly, moving lifting assembly, roll centering assembly, mandrel clamping assembly, pre-tensioning guide assembly, and buffer locking assembly. Through servo geared motors, V-shaped roller assemblies, segmented tensioning claw sleeves, and damping braking assemblies, it achieves automatic centering, stable clamping, flexible introduction, and smooth tension establishment of the film roll.

Benefits of technology

It improves the automation level of feeding, enhances the adaptability and safety of clamping, reduces feeding impact and film wrinkling, improves production efficiency and safety, and is suitable for film rolls of different specifications.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses an auxiliary feeding device for plastic bag production equipment, belonging to the technical field of plastic bag production equipment. It includes a base assembly, a moving lifting assembly, a roll centering assembly, a mandrel clamping assembly, a pre-tensioning guide assembly, a buffer locking assembly, and a control assembly. The roll centering assembly uses a V-shaped idler roller assembly, a centrally located correction push plate, and a side positioning plate to center and correct the film roll. The mandrel clamping assembly uses a main insert shaft with a floating connecting seat, a segmented tensioning claw sleeve, and a conical core tie rod structure to achieve self-adaptive clamping of the paper core. The moving lifting assembly uses a double-chain synchronous lifting mechanism, combined with an anti-fall ratchet assembly to improve safety. This device has advantages such as high centering accuracy, stable clamping, low feeding impact, strong adaptability, and high safety.
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