Demolding assembly for injection mold and injection mold

By designing a mold release assembly in the injection mold, the ejection and demolding process of the injection molded parts is optimized by using the coordinated movement and separate movement of the straight top and the first oblique top, the ejection and demolding process of the injection molded parts is solved, and the problem of adhesive oblique top is improved, and the demolding efficiency and stability are improved.

CN119704565AActive Publication Date: 2025-03-28CHERY AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202510133791.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2025-03-28
Estimated Expiration
2045-02-06

AI Technical Summary

Technical Problem

During the mold release process of injection molds, the traditional inclined top mechanism needs to move in the demolding direction and lateral direction at the same time, resulting in large movement resistance and easy to stagnate, resulting in sticky inclined top phenomenon, affecting the demolding efficiency and product quality.

Method used

A mold release assembly for injection mold is designed, and the injection molded part is ejected together with the first oblique top to optimize the force distribution; at the demolding position, the first oblique top moves separately to achieve separation of the second contact surface; finally, the straight top moves to achieve separation of the first contact surface and the injection molded part.

Benefits of technology

It effectively solves the problem of sticking inclined tops, ensures smooth removal of the inclined tops, improves the demolding efficiency and stability of injection molds, reduces product defect rate, and extends the service life of the mold.

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Abstract

The demolding assembly comprises a movable mold body, a static mold body, a straight top part and a first inclined top part, the straight top part is movably arranged on one of the movable mold body and the static mold body so as to be switched between an injection molding position and a demolding position, and the straight top part can move in the first direction; the first inclined top part is movably arranged on one of the movable mold and the static mold, the first inclined top part and the straight top part synchronously move in the process of switching the injection molding position and the demolding position, and the first inclined top part moves in the second direction relative to the straight top part in the demolding position; wherein a first contact surface and a second contact surface which are connected with each other are respectively formed on the straight top part and the first inclined top part, the first contact surface and the second contact surface are used for being in contact with an injection molding part in the injection molding cavity, and in the demolding position, the straight top part and the first inclined top part respectively move to separate the first contact surface and the second contact surface from the injection molding part; and the stripping smoothness of the pitched roof can be improved.
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