Injection mold

Abstract

The invention provides an injection mold. The injection mold comprises a mold cavity, a gate and a gate cutting device. The gate is located on one side of the mold cavity. According to the injection mold provided by the invention, the gate is arranged at a through hole of a product; the gate and the mold cavity are sealed and isolated before the start of the cooling process; the inner surface of the through hole of the injection molded product is formed through part of the surface, protruding into the mold cavity, of a gate cutting, then the purpose that the surface of the injection molded product has no gate is achieved, and the appearance quality of a transparent plastic part is improved. A gate ejection pin is arranged in a rubber cutting insert, and the problem that a pull pin cannot be arranged at an annular side gate is solved. Fixation and ejection of the gate are realized during demolding, and clamping by a manipulator is facilitated. The problems that the gate adheres to the mold or the injection molded product is scratched due to toppling or falling of the gate are solved. Automatic production of injection molded products and gates is achieved.

Description

Technical field [0001] The invention relates to the technical field of injection moulds, in particular to an injection mould. Background technique [0002] Transparent plastic parts are usually appearance products, and have high requirements for their appearance quality. If the selection of the gate position and subsequent treatment is improper, the appearance will be imprinted, which will affect the appearance quality of the product and reduce the product grade. The existing technology In order to solve the problem that the melt directly enters the cavity to punch the outer surface of the transparent plastic part and leave spray lines, the transparent appearance plastic part is usually poured by side gates, but the side gate pouring requires manual secondary treatment of the gate, and it will The gate mark is left on the appearance surface, causing the problem of large differences in product quality and inability to automate production. Summary of the invention [0003] In order...

AI Technical Summary

Problems solved by technology

[0002] Transparent plastic parts are usually appearance products, and the requirements for their appearance quality are very high. If the selection of the gate position and its follow-up treatment are improper, it will leave marks on the appearance, affect the appearance quality of the product, and reduce the product grade. The existing technology In order to solve the problem that the molten material directly enters the cavity to punch the outer surface of the transparent plastic part and leave jet lines, the transparent appearance plastic part is usually poured through the side gate, but the side gate needs manual secondary treatment of the gate, and will Gate marks are left on the exterior surface, resulting in large product quality differences and problems that cannot be automated.

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