Built-in side pushing structure of large inclined ejector in automobile bumper injection mold

By designing a built-in side-push structure on the injection mold of the car bumper, and using the inclined ejector rod and mold locking assembly to achieve rapid demolding of the bumper, the problem of difficult removal of the molded bumper is solved, and production efficiency is improved.

CN224334938UActive Publication Date: 2026-06-09ZHEJIANG YONGMING MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YONGMING MOULD CO LTD
Filing Date
2025-07-08
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

When demolding existing automotive bumper injection molds, the molded bumper is easily left in the rear mold base, making it inconvenient to remove the part from the cavity and affecting processing efficiency.

Method used

A side-push structure with a large inclined ejector pin was designed for an automotive bumper injection mold. The inclined ejector pin pushes the insert to make the molded bumper fit tightly against the front mold base for demolding. Combined with the mold locking assembly and cooling water pipe, it enables rapid part removal.

Benefits of technology

This improves the demolding efficiency of the bumper, prevents the molded bumper from falling off directly, facilitates the rapid operation of the cavity removal robot, and enhances production efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224334938U_ABST
    Figure CN224334938U_ABST
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Abstract

The utility model provides an automobile bumper injection mold big inclined jacks upper built -in side push structure, including base and front mould seat, four edge sides fixed mounting of base top end have support block, the top fixed mounting of support block has rear mould seat, the top of rear mould seat is provided with the front mould seat of adaptation, the top fixed mounting of rear mould seat has lower mould core, the bottom fixed mounting of front mould seat has upper mould core, the surface of mould core is provided with bumper mould cavity. The utility model discloses an automobile bumper injection mold rear mould seat and front mould seat separate, at this time through the inclined jacks upper push insert block synchronous movement, make the automobile bumper of forming closely front mould seat stripping, convenient through injection cavity spare part taking manipulator's fast spare part taking, avoided traditional automobile bumper and rear mould seat in the adhesion, when stripping, easy to cause bumper direct drop, not convenient for cavity spare part taking manipulator's spare part taking, influence production and processing work efficiency.
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