Injection molding apparatus for low voltage connector assemblies

By using step-by-step injection molds and precision positioning devices, the problem of difficult injection positioning of low-voltage connector assemblies was solved, achieving high yield and low-cost production, and simplifying the processing procedures.

CN121179649BActive Publication Date: 2026-07-21FOSHAN SHUNDE TIANMASHI ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FOSHAN SHUNDE TIANMASHI ELECTRONICS CO LTD
Filing Date
2025-11-25
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing low-voltage connector assemblies are difficult to position during injection molding, resulting in a high product defect rate, increased production costs, and the need for additional machining, making the process complex.

Method used

A step-by-step injection mold is adopted. First, injection molding is carried out in the molds of the low-pressure pin and the copper busbar sleeve, and then the whole assembly is formed in the mold. The lifting and rotating device is used to achieve precise positioning of the upper and lower pins. Combined with the limiting and sliding device, deformation is prevented and subsequent processing is simplified.

Benefits of technology

It improved product yield, reduced production costs, simplified the processing flow, and avoided additional machining steps.

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Abstract

The application discloses a kind of injection molding device of low-voltage connector assembly in the technical field of injection mold, comprising: low-voltage pin piece injection mold, low-voltage pin piece injection mold is obtained in injection molding low-voltage pin piece;Copper bar sleeve injection mold, copper bar sleeve injection mold is obtained in injection molding copper bar sleeve;Assembly injection mold, low-voltage pin piece and copper bar sleeve are placed in assembly injection mold, and low-voltage connector assembly is obtained in injection molding;Low-voltage pin piece injection mold includes first ejector pin, first ejector pin plate, jacking device, rotating device, first slider device and sequentially arranged first panel, first runner plate, first upper die plate, first lower die plate, first square iron block and first bottom plate.Low-voltage pin piece and copper bar sleeve are separately injection molded, and then the whole is injection molded in assembly injection mold, to ensure the accuracy of the pin on low-voltage pin piece and copper bar position, improve the yield of product;After injection molding, finished product is obtained, without machining treatment, simplify processing process.
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