Injection mold of composite core-pulling mechanism

Abstract

The invention discloses an injection mold of a composite core-pulling mechanism. The injection mold comprises a fixed mold group and a moving mold grove which are matched up and down, wherein a moving mold core for forming an inner cavity of an injection molding product is fixedly mounted in the center of the top surface of the moving mold group longitudinally; a large sliding block for forming the periphery surface morphology of the injection molding product is assembled on the moving mold group in a sliding manner; a fixed mold locking cavity for locking the large sliding block in match with the convex part of the large sliding block in mold combination is arranged at the fixed mold group; the large sliding block, the moving mold core and the top wall of the fixed mold locking cavity are matched together to form an injection mold cavity of the injection molding product; an upward core pulling mechanism which extends into the injection mold cavity is arranged on the fixed mold group; two decorative hole core pulling mechanisms for decorating two decoration hole areas of the injection molding product are compounded in the sliding block; three sliding block core pulling mechanisms for forming three buckles at the bottom of the inner cavity of the injection molding product are assembled in the moving mold group at intervals of 120 degrees. The injection mold is reliable in structure, stable to move, and high in mold closing precision and can meet the production requirements of the injection molding product.

Description

technical field [0001] The invention relates to the field of mold design for injection molding products, in particular to an injection mold of a compound core-pulling mechanism. Background technique [0002] With the continuous improvement of the quality of life, people have put forward higher requirements for the appearance and structure of their plastic home appliances. Some products must not only meet the waterproof requirements in life, but also be able to protect the safety of users and conform to ergonomics. The characteristics of the product, but also require the product to be easy to assemble, these characteristics determine the difficulty of the mold design of the product is greatly increased. In the prior art, the mold usually consists of a moving mold, a fixed mold and a core-pulling mechanism. After the movable and fixed molds are opened, the core-pulling mechanism slides and pulls the core out of the injection-molded product through the action of the hydraulic ...

AI Technical Summary

Problems solved by technology

However, for some plastic products, such as the plastic parts with a soft rubber switch area, a trademark area and a decorative area with many small holes on the outer surface of the plastic part, and the plastic parts with three buckles at the upper and lower ends of the plastic part, it is obvious that The mold of the traditional core-pulling mode cannot meet the precision and appearance requirements of this type of product

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