Angle injection core-pulling structure and injection mold with angle injection core-pulling structure

Abstract

The invention discloses an angle injection core-pulling structure and an injection mold with the angle injection core-pulling structure. The angle injection core-pulling comprises a movable mold insert and a plurality of angle injection inserts, wherein the movable mold insert is movably switched between a mold closing position and a mold releasing position in the vertical direction; the angle injection inserts are used for forming an inverted buckle structure on a part to be machined, the angle injection inserts are movably arranged on the periphery of the movable mold insert, and a groove for forming the end portion of the part to be machined is formed by enclosing the angle injection inserts and the movable mold insert. When the movable mold insert is switched from the mold closing position to the mold releasing position, the angle injection inserts are driven to move in the direction which is away from the center of the movable mold insert under the guidance of an angle injection guide structure so as to complete angle injection core-pulling of the angle injection inserts. The angle injection core-pulling structure solves the problem that the angle injection core-pulling structure cannot normally be subjected to mold releasing or mold closing due to mutual interference between a plurality of angle ejector rods or between the angle ejector rods and other parts during the inclined movement of the angle ejector rods of the angle injection core-pulling structure in one direction in the prior art.

Description

technical field [0001] The invention relates to the technical field of injection molds, in particular to an inclined top core-pulling structure and an injection mold with the structure. Background technique [0002] The inclined top core-pulling structure is a mechanism used to form product undercuts in mold design. In the injection molding process of parts, it is often necessary to use an inclined top core-pulling structure. For example, when producing the front cylinder of a washing machine, the outer circle of the cylinder mouth needs to adopt a full-circle undercut structure, which can prevent the ring-shaped mouth of the front cylinder of the washing machine. If there is a problem of water seepage to the outside, ensure the sealing effect of the front drum of the washing machine. In order to process the undercut structure, it is necessary to use the inclined top core-pulling structure to complete the molding work of the plastic part at the undercut and to eject the pla...

AI Technical Summary

Problems solved by technology

[0004] Therefore, the present invention aims to provide an inclined top core-pulling structure and an injection mold with the same structure, so as to solve the problem of multiple inclined ejector pins in the prior art during the inclined movement towards one direction. The problem of mutual interference between the inclined ejector pins or between the inclined ejector pins and other parts will lead to the problem that the inclined ejector core-pulling structure cannot be normally demoulded or closed.

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