An injection mold for a product without a draft angle on the outer side of the edge of the side wall

Abstract

The invention proposes an injection mold for products with no draft angle on the outer surface of the edge of the side wall, which can solve the existing problems of high cost, cumbersome mold movements, and low molding efficiency for the injection mold used to achieve smooth demoulding of such products and avoid dragging. The injection mold includes a template where the product is located when the mold is opened. The template includes a core member and an ejection mechanism. The template is provided with a push-out plate, which is nested on the periphery of the core, and has a molded product on its inner side. The stepped structure of the edge of the side wall, the edge of the side wall of the product is formed on the step structure, so that the outer surface of the edge of the side wall of the product has no draft angle, and the ejection plate is fixedly connected to the ejection mechanism. By setting the push-out plate, there is almost no relative movement between the push-out plate and the product during ejection, which avoids the problem that the outer surface of the product is easily scratched, and has a simple structure, easy installation, no increase in mold cost, and high molding efficiency.

Description

technical field [0001] The invention relates to an injection mold, in particular to an injection mold suitable for injection molding of products requiring no mold release angle on the outer surface of the edge of the side wall, so as to realize the smooth demoulding of such products without surface scratches. Background technique [0002] In the field of injection molding technology, in order to enable the product to be released from the mold smoothly, plastic products are usually designed with an inclination angle on the inner side and outer side of the side wall edge, that is, the "drawing angle". [0003] Specifically, the draft angle on the inner side makes it easy for the product to escape from the core under the action of the ejector mechanism, which is indispensable in the process of product design. [0004] The draft angle on the outer surface is to make it easy to open the mold after the product is formed, and it is also indispensable in the current product design p...

AI Technical Summary

Problems solved by technology

[0006] The present invention proposes an injection mold for a product without a draft angle on the outer surface of the side wall edge, which can solve the problem of smooth demoulding of products without a draft angle on the outer surface of the side wall edge in the prior art and avoid dragging the outer surface of the product. The cost of the injection mold used is high, the mold movement is cumbersome, and the molding efficiency is low

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