Disassembly and assembly structure for the unwinding shaft of a bag making machine

By adopting a disassembly and assembly structure for components such as long plates, electric telescopic rods, and motors on the unwinding shaft of the bag making machine, the problems of lateral movement and offset caused by unstable roll clamping are solved, thus achieving stable roll supply and efficient production.

CN224279177UActive Publication Date: 2026-05-26WENZHOU YUEXIN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU YUEXIN TECHNOLOGY CO LTD
Filing Date
2025-05-09
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of bag making technology and provides a disassembly and assembly structure for the unwinding shaft of a bag making machine. It includes a long plate with two base blocks symmetrically distributed near the bottom edge of the long plate. An electric telescopic rod is fixedly installed inside each of the two base blocks, and a push block is fixedly connected to the output end of each of the two electric telescopic rods. Two through holes are symmetrically opened inside each of the two push blocks, and two central pillars are provided inside each of the two base blocks. With this utility model, when the operator simultaneously starts the electric telescopic rod, it drives the two push blocks to move downwards. Multiple movable pillars follow the movement trajectory of the push blocks and move within the through holes. The movable pillars then drive the two long rods to rotate around the central pillars, causing the two clamping blocks to clamp the roll material in a symmetrical manner. This stabilizes the supply of the roll material and prevents the roll material from shifting laterally due to the unwinding shaft of the bag making machine, thus improving product quality and overall production efficiency.
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