Spring-hook composite triple parting pin-point gate injection mold

Abstract

The invention discloses a spring-hook composite triple parting pin-point gate injection mold, which comprises a fixed clamping plate, a stripper plate, a fixed die plate, a locating ring, a limit rod, a fixed clamping plate, a backing plate, a moving die insert, heel blocks, a moving clamping plate, an ejector plate and an ejector retaining plate. The locating ring is installed on the fixed clamping plate. The upper end face of the fixed die plate is processed to obtain a counter bore, which is filled with a spring. The upper end of the limit rod is fixed on the stripper plate and passes through the spring, and the lower end extends into holes of the fixed die plate and the backing plate. The heel blocks are fixed on the moving clamping plate. The ejector plate and the ejector retaining plate are installed between the heel blocks. A top tube is installed on the ejector retaining plate and passes through the backing plate and the moving die insert to extend into a cavity. The product is characterized in that a pull rod is installed on the fixed clamping plate; a sliding block is installed on the fixed die plate; there is a groove at the center of the sliding block; the pull rod passes through the groove of the sliding block; and a hook is mounted on the backing plate and is used for hooking the sliding block in a die-locking state. The product has a simple structure, is low-cost, and is convenient to install, debug and maintain.

Description

Technical field [0001] The invention belongs to the technical field of plastic injection molding, and relates to a novel mold structure, in particular to a three-time split-mold pull-break point gate injection mold combined with a spring hook. Background technique [0002] When the plastic parts are injection molded with point gates, because the runner waste is located above the cavity and has an inverted cone shape, the plastic parts are located in the cavity, and the two are connected by the gate waste and cannot be taken out at the same time, so the mold needs to be opened In the process, the gate waste is automatically pulled off, and at the same time, smooth separation between the runner plate and the cavity plate and between the cavity plate and the movable template is realized, so that the runner waste and plastic parts can be taken out separately. The methods currently used are as follows: 1. It is realized by the pre-compression elastic force of the spring or the pre-tig...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing mold splitting breakpoint gate method and mold structure, the present invention provides a three-time split mold pull breakpoint gate injection mold combined with a spring and a hook

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