A balanced single-side force stripping mechanism on a slider

By designing the rack and gear mechanism driven by hydraulic cylinder on the slide, the threaded core is rotated, and the problem of excessive thread pulling distance in the prior art is solved, and stable threading and core pulling of plastic parts is achieved.

CN119348081BActive Publication Date: 2025-03-25SHOUJU EXCELLENT PRECISION MOLD (SHENZHEN) LTD
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Patent Information

Application Number
CN202411919999.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-25
Estimated Expiration
2044-12-25

AI Technical Summary

Technical Problem

In the prior art, the thread core pulling distance is relatively large, which leads to unstable mold release process and makes it difficult to efficiently complete the thread and core pulling of plastic parts.

Method used

A single-sided thread removal mechanism on the slide is designed, and the rack and gear mechanism is driven by the hydraulic cylinder, so that the threaded core is rotated, the threaded core is completed, and the core removal of the plastic part is realized through the movement of the gear assembly.

Benefits of technology

The stable thread removal and core extraction of plastic parts are achieved, the core extraction distance is shortened, and the stability and efficiency of the mold release process are improved.

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Abstract

The present invention relates to the technical field of demoulding of plastic products, and discloses a balanced unilateral force-dethreading mechanism on a slider, comprising a bottom plate, a sliding seat, a clamping part, a slider, a threaded core, a slider insert, a first hydraulic cylinder, multiple sets of racks, a gear mechanism, and a second hydraulic cylinder. In the present invention, after the injection molding of the plastic product is completed, the first hydraulic cylinder moves forward to drive the two racks to move, and through the cooperation of the racks and the gear mechanism, the threaded core rotates to complete the threading action of the plastic product; after the threading of the plastic product is completed, the second hydraulic cylinder is restarted to drive the threaded core and the entire gear assembly to move to complete the core pulling of the plastic product; the structure balances the force of the first hydraulic cylinder and the second hydraulic cylinder during the ejection process by designing auxiliary racks and auxiliary gears on the slider, so that the force of the rack and the gear mechanism is balanced during the ejection process, thereby realizing the stable operation of the threading mechanism and ensuring smooth and reliable production of the mold.
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