Injection mold fixed mold side centripetal reversely-buckling corepulling device

Abstract

The invention discloses a core-pulling device for an injection mold fixed mold lateral centripetal undercut, comprising a central wedge (1), a centripetal undercut slider (2), a diagonal pull block (3), and a booster rod (4) , spring (5). The central wedge used in the present invention is provided with a core slide; The block is provided with a left buckle end and a left chute, and the right slider is provided with a right buckle end and a right chute; the two left and right symmetrical oblique blocks are respectively called the left pull block and the right pull block, and the left pull block has The left slide rail and the right pull block are equipped with a right slide rail; when working, the center wedge and the inclined pull block are pulled out from the fixed mold carrier plate along with the panel, and the left slide and right slide move towards the center wedge synchronously, so that The technical scheme that the left buckle end and the right buckle end are respectively core-pulled from the centripetal underturn structure of the product enables the core-pulling and demoulding of the fixed side of the injection mold to achieve a simplified structure, reliable operation, and reduced costs the goal of.

Description

technical field [0001] The invention relates to a core-pulling and demolding device for an injection mold, specifically refers to a core-pulling device that is installed on the fixed mold side of the injection mold and performs centripetal undercut core-pulling on the fixed mold side of the injection mold. device. Background technique [0002] Explanation: Undercut refers to the flange, hook or rib structure in which the core-pulling and demoulding direction intersects with the opening and closing direction of the mold in injection molded products; centripetal undercut refers to the two core-pulling directions of the product that are opposite and coaxial Undercut structure; centrifugal undercut refers to the undercut structure in which the two core-pulling directions of the product are opposite and coaxial; centripetal undercut core-pulling refers to the core-pulling demoulding for centripetal undercut; both sides are equipped with Injection molded products with undercuts a...

AI Technical Summary

Problems solved by technology

[0003] For the core-pulling of the fixed mold with side-to-center undercut, the existing technology adopts the oblique sliding core block driven by the oil cylinder to pull the core. Since the work of the oil cylinder involves hydraulic source, oil circuit, control, and non-reverse locking, the structure is complex and there are many links. , There are many potential failure nodes, so that the failure rate is high, the reliability is poor, and the operation and maintenance cost is high. In addition, the oil cylinder occupies a large internal space of the mold, resulting in a large mold shape and high manufacturing cost; therefore, the existing technology has complex structure, poor reliability, Problems and deficiencies of high cost

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