Automobile instrument support core-pulling mechanism

Abstract

The invention discloses an automobile instrument support core-pulling mechanism. The automobile instrument support core-pulling mechanism comprises an upper mold and a lower mold, a lower mold core used for forming one side face of a product, an elastic block used for forming the other side of the product and a first undercut and a mold core used for forming a second undercut on the bottom surfaceof the product are arranged in the lower mold correspondingly, the core-pulling mechanism for core pulling on the mold core is arranged in the lower mold, a groove is formed in the upper surface of the lower mold, the elastic block is slidably matched in the groove, and the elastic block locks the core-pulling mechanism when the upper mold and the lower mold are closed, and ejects the first undercut and releases locking of the core-pulling mechanism when the upper mold and the lower mold are opened. According to the provided automobile instrument support core-pulling mechanism, the rejectionrate is low, and the reliability is high.

Description

Technical field [0001] The invention relates to the field of injection molds, in particular to a core pulling mechanism of an automobile instrument bracket. Background technique [0002] The automobile instrument bracket is one of the important parts of the automobile. The automobile instrument bracket is made by injection molding. The side and bottom of the automobile instrument are equipped with inverted buckles. According to the existing technology, the side inverted buckle is core-pulled by the slider , Due to the long product length, the undercut stroke of the slider will be as large as 300mm, the slider core pulling movement is unstable, the slider will swing, the core pulling is unreliable, it will strain the product, the reject rate is high, and the slider is pulling When the core is formed, it is easy to drive the mold core of the bottom undercut to move, which is easy to strain the product, and the reliability is low. Summary of the invention [0003] The technical prob...

AI Technical Summary

Problems solved by technology

[0002] The car instrument bracket is one of the important parts of the car. The car instrument bracket is injection molded through an injection mold. There are undercuts on the side and bottom of the car instrument. According to the existing technology, the slider is used to pull the core on the side undercuts. , due to the long length of the product, the undercut stroke of the slider will be as large as 300mm, the core-pulling movement of the slider is unstable, the slider will swing, the core-pulling is unreliable, and the product will be strained, the scrap rate is high and the slider is pulling When the core is formed, it is easy to drive the mold core with the undercut at the bottom of the molding to move, which is easy to damage the product and has low reliability.

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