Car instrument bracket core pulling mechanism

Abstract

The invention discloses a core-pulling mechanism for an automobile instrument bracket, which comprises an upper mold and a lower mold. The lower mold is respectively provided with a lower mold core for forming one side of a product, another side for forming a product and a first inverted mold core. The elastic block of the buckle and the mold core used to form the second undercut on the bottom surface of the product. The core-pulling mechanism for core-pulling the mold core is provided in the lower mold, and the upper surface of the lower mold is provided with grooves. The elastic block can be slidably fitted in the groove, and the elastic block locks the core-pulling mechanism when the upper mold and the lower mold are closed, and the elastic block ejects the first Once buckled down and the spring block releases the locking of the core-pulling mechanism, the invention provides a core-pulling mechanism for an automobile instrument bracket with a low reject rate and high reliability.

Description

technical field [0001] The invention relates to the field of injection moulds, in particular to a core-pulling mechanism for an automobile instrument bracket. Background technique [0002] The car instrument bracket is one of the important parts of the car. The car instrument bracket is made by injection molding. The side and bottom of the car instrument are provided with inverted buckles. According to the existing technology, the slider is used to pull the core of the side inverted buckle. , Due to the long product length, the reverse stroke of the slider will be 300mm, the slider core-pulling movement is unstable, the slider will swing, the core-pulling is unreliable, and the product will be pulled, and the scrap rate is high while the slider is pulling When the core is formed, it is easy to drive the mold core with the inverted bottom buckle to move, which is easy to strain the product and has low reliability. SUMMARY OF THE INVENTION [0003] The technical problem to ...

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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