Self-locking mechanism for oblique core pulling

Abstract

A self-locking mechanism for angle core pulling comprises a core pulling block (1) and a slide base (2). An inclined face (3) is arranged on the slide base (2) and is divided into a core pulling face (3.1) and a locking face (3.2). Transition between the core pulling face (3.1) and the locking face (3.2) is achieved through a transition face (3.3). The vertical distance between the core pulling face (3.1) and the locking face (3.2) ranges from 2 mm to 10 mm. The depth of the portion, in slide fit with a slide block (5), of a slide groove (4) is equal to the sum of the thickness of the slide fit part of the slide block (5) and the vertical distance between the core pulling face (3.1) and the locking face (3.2). Compared with the prior art, the self-locking mechanism has the beneficial effects that the overall sizes of molds are not increased, the number of parts is small, the structure is simple, installation and maintenance are easy and convenient, and cost is lower.

Description

technical field [0001] The invention relates to an oblique core-pulling self-locking mechanism for mold core-pulling. Background technique [0002] At present, the barb on the product needs to be designed to pull the core obliquely, and the injection pressure of the product is relatively high. Once the pressure of the oil cylinder is not enough, the core pulling block will be pushed back. The reverse push of the core block will cause the wall thickness of the product to increase Defects such as thickness, flash and seam line difference. In order to solve the above problems, the molds in the prior art all adopt an additional locking mechanism to lock the core-pulling block, but the additional locking mechanism increases the overall volume of the mold, increases the number of parts, and makes the structure more complex, resulting in an increase in cost , the use stability becomes worse, installation and maintenance are also more troublesome, and it needs to be locked after th...

AI Technical Summary

Problems solved by technology

[0002] At present, the barb on the product needs to be designed to pull the core obliquely, and the injection pressure of the product is relatively high. Once the pressure of the oil cylinder is not enough, it will cause the phenomenon of the core-pulling block being pushed back, and the core-pulling block will be pushed back. Defects such as thickness, flash and seam line difference

In order to solve the above problems, the molds in the prior art all adopt an additional locking mechanism to lock the core-pulling block, but the additional locking mechanism makes the overall volume of the mold increase, the number of parts increases, and the structure is more complicated, resulting in an increase in cost , the use stability becomes worse, installation and maintenance are also more troublesome, and it needs to be locked after the mold is closed, which makes the entire production cycle longer, resulting in lower production efficiency

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