An inner thread demolding mechanism for a fabric softener cap injection mold.

By utilizing the inner ring thread demolding mechanism of the fabric softener cap injection mold, and taking advantage of rotational inertia and bearing assembly design, efficient and non-destructive demolding of the inner and outer ring threads of the fabric softener cap is achieved. This solves the problem of easy thread damage in traditional molds and improves product quality and production efficiency.

CN119974439BActive Publication Date: 2025-10-31ZHONGSHAN SOUTH CHINA PACKAGING PROD CO LTD
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Patent Information

Application Number
CN202510202220.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2025-10-31
Estimated Expiration
2045-02-24

AI Technical Summary

Technical Problem

In traditional injection molds, the inner and outer threads of the fabric softener pouring cap are easily damaged during demolding, leading to a decline in product quality, low production efficiency, and high maintenance costs.

Method used

A demolding mechanism for the inner thread of a fabric softener cap injection mold was designed. By utilizing the synergistic action of the first and second demolding components and through rotational inertia and bearing assembly design, efficient and non-destructive demolding of the inner and outer threads of the cap is achieved, avoiding deformation and thread damage caused by direct pulling.

Benefits of technology

It improves product appearance quality and performance, ensures thread precision and integrity, simplifies demolding mechanism design, reduces manual intervention, increases production efficiency, and lowers maintenance costs.

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Abstract

This invention proposes a demolding mechanism for the inner thread of a fabric softener cap injection mold, comprising a fixed mold assembly and a moving mold assembly. The fixed mold assembly includes a first insert fixing plate, a fixed template, etc., with multiple fixed mold inserts passing through the fixed template connected to the first insert fixing plate. The moving mold assembly includes a second insert fixing plate, a moving template, etc., with multiple moving mold inserts connected to the second insert fixing plate. When the mold is closed, a mold cavity for cap forming is formed between the moving template, the fixed template, the fixed mold inserts, and the moving mold inserts. A first demolding component is provided within the fixed mold assembly. This application achieves rotational demolding of the inner thread of the filling cap through the first demolding component. During the mold opening process, the second forming insert is pulled down and rotates relative to the first forming insert, using rotational inertia to naturally detach the inner thread of the cap from the mold, avoiding the cap deformation problem caused by direct pulling in traditional injection molds, thereby significantly improving the product's appearance quality and performance.
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