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.
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
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.
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.
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.
Smart Images

Figure CN224334938U_ABST