Injection molding equipment for automobile rearview mirror part machining

By combining the floating mold core and the pulling mold core and driving the rotation and swing unit, the problem of difficult material removal of the rearview mirror support frame is solved, realizing automatic demolding and efficient production, ensuring product quality and production efficiency.

CN122442885APending Publication Date: 2026-07-24NINGBO GUANGCHEN PRECISION MANUFACTURING CO LTD
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Patent Information

Application Number
CN202610820757.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-08
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing injection molds make it difficult to remove material after the rearview mirror support bracket is formed, especially due to the arc-shaped setting and complex shape of the second sealing rod.

Method used

The system adopts a floating mold core structure. Through the cooperation of the floating mold core and the mold core of the core-pulling module, the rearview mirror support bracket can be vertically floated upward for demolding. Combined with the rotation swing unit to drive the mold core, the demolding process is ensured to proceed smoothly.

Benefits of technology

The system enables automatic unloading of the rearview mirror support bracket, avoiding scratches on the surface of the molded parts, improving the product qualification rate, and shortening the injection molding cycle through a dual cooling system, ensuring dimensional accuracy and surface flatness, and improving production efficiency and consistency.

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Abstract

The invention relates to the technical field of automobile rearview mirror part machining, in particular to injection molding equipment for automobile rearview mirror part machining. The injection mold comprises a fixed mold set, a movable mold set and a core pulling mold set, after the injection mold set completes injection molding, a mold pulling core is pulled out from an injection molding cavity, and when the movable mold set and the fixed mold set complete separation, a floating mold core drives a formed rearview mirror part to float upwards in the vertical direction for demolding; a combined structure of a split fixed mold core main mold core, two groups of sliding mold cores and an integrated floating mold core is adopted, a complete fixed mold injection molding groove is formed through splicing of the sliding mold cores, an arc-shaped outline and a complex structure of a rearview mirror part are accurately matched, and the floating mold core is in butt joint with a raised head-positioning groove of a pulling mold core through an arc-shaped core head; and in cooperation with telescopic compensation of the supporting spring piece and the corrugated pipe body, the sealing performance of the injection molding cavity is guaranteed, vertical upward floating during demolding is achieved, and automatic demolding of the formed rearview mirror part rearview mirror supporting frame is achieved.
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