A mold return structure with forced demoulding feature

Abstract

The invention relates to a die return structure with a forced demolding characteristic. The die return structure comprises a fixed die plate, a movable die plate, a fixed die core and a movable die core. A die cavity is formed between the fixed die core and the movable die core, a plane is formed in the middle of the die cavity, and the fixed die core and the movable die core are attached to the plane. A plurality of movable die inserts with the upper ends inserted into the die cavity are vertically arranged in the positions, matched with a product in structure, of the interior of the movable die core, and the lower end of each movable die insert is connected with one end of a horizontally-arranged connecting block. A fixed die ejecting pin is mounted in the middle of the lower end face of the fixed die core, a plurality of ejecting pins inserted into the die cavity are further vertically arranged in the movable die core, and the lower ends of the ejecting pins are connected with an ejecting pin cushion plate and an ejecting pin fixing plate at the lower end of the movable die plate. The die return structure is simple, and the space in a die is ingeniously utilized; on the premise of not affecting product molding, the return structure is arranged, so that auxiliary holes do not need to be formed in products, and the die return structure is suitable for various products and has good universality.

Description

technical field [0001] The invention relates to the field of design and manufacture of plastic molds, in particular to a mold return structure with the feature of forced demoulding. Background technique [0002] In the processing of plastic products, the elasticity of plastic is often used to achieve forced demoulding. When arranging mold inserts, process holes are usually opened on the product, and through the mold closing action, the characteristics of forced demoulding can be formed. After the mold insert is ejected from the product, the mold insert can be pushed back to the initial position by the mold. In this structure, it is inevitable to open a process hole on the product, but some products do not allow opening holes due to various considerations. This brings great difficulty to the setting of mold inserts. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a mold return structure with the feature of forced...

AI Technical Summary

Problems solved by technology

[0002] In the processing of plastic products, the elasticity of plastic is often used to achieve forced demoulding. When arranging mold inserts, process holes are usually opened on the product, and through mold clamping action, the characteristics of forced demoulding can be formed. After the mold insert is ejected from the product, the mold insert can be pushed back to the initial position by the mold. In this structure, it is inevitable to open a process hole on the product, but some products do not allow opening holes due to various considerations. This creates great difficulties in setting up mold inserts

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