Injection mold injection part side edge upper and lower internal reversed buckles demoulding mechanism

Abstract

The invention discloses an injection mold injection part side edge upper and lower internal reversed buckles demoulding mechanism. The injection mold injection part side edge upper and lower internal reversed buckles demoulding mechanism comprises a fixed cavity plate and a fixed core plate; the lower part of the fixed cavity plate is provided with a fixed mould; inclined guide pillars are arranged between the fixed cavity plate and the fixed mould; the middle part of the fixed core plate is provided with a through hole; the fixed core plate is provided with supprort blocks, an ejector retainer plate, and an ejector base plate; an ejector pin is arranged between the ejector retainer plate and the ejector base plate; an injection machine ejector rod is contacted with the ejector base plate; the supprort blocks are provided with a movable mould; the movable mould is provided with side core-pulling sliding blocks; the middle parts of the side core-pulling sliding blocks are provided with inclined guide holes matching the inclined guide pillars; a plastic part is arranged between the fixed mould and the movable mould; an upper link hole and a lower link hole are arranged in the middle part of one side core-pulling sliding block; an upper limiting pull rod and an upper inclined ejector are arranged in the upper link hole; one end of the upper limiting pull rod is provided with an upper limiting block, and the other end is connected with the upper inclined ejector; an upper internal convex ring is arranged in the upper link hole; an upper spring is arranged between the upper inclined ejector and the upper internal convex ring; a lower limiting pull rod and a lower inclined ejector are arranged in the lower link hole; one end of the lower limiting pull rod is provided with an lower limiting block, and the other end is connected with the lower inclined ejector; a lower internal convex ring is arranged in the lower link hole; and a lower spring is arranged between the lower inclined ejector and the lower internal convex ring.

Description

technical field [0001] The invention relates to an injection mould, in particular to an up and down inner buckle release mechanism for a plastic part of an injection mould. Background technique [0002] When the plastic part is injection molded, if the side wall of the plastic part is provided with an upper tab and a lower tab, the upper tab is provided with a downward undercut, and the lower tab is provided with an upward undercut, that is, up and down. The buckles are corresponding to each other. The existing technology is to make the depth of the upper and lower buckles smaller, and then directly pull out the buckles through strong release. If the undercut depth is small, the fastening ability is poor. When the plastic part is assembled with other parts, the assembly is unreliable, which affects the use effect. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a release mechanism with si...

AI Technical Summary

Problems solved by technology

[0002] When the plastic part is injection molded, if the side wall of the plastic part is provided with an upper tab and a lower tab, the upper tab is provided with a downward undercut, and the lower tab is provided with an upward undercut, that is, up and down. The buckles are corresponding to each other. The existing technology is to make the depth of the upper and lower buckles smaller, and then directly pull out the buckles through strong release. If the undercut depth is small, its fastening ability is poor. When the plastic parts are assembled with other parts, the assembly is unreliable, which affects the use effect

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