Static mold pre-core pulling mold structure

Abstract

The invention discloses a static mold pre-core-pulling mold structure, which comprises a dynamic template, a static template, a dynamic mold core installed on the dynamic template, and a static mold core installed on the static template and set opposite to the dynamic mold core, and A power device is also installed, the first hole-forming core is fixed on the movable mold core, and the movable second hole-forming core is installed on the static mold core, and the end of the second hole-forming core is far away from the movable mold core and the power The device is linked. The static mold pre-core-pulling mold structure disclosed by the invention can reduce the difficulty of demolding products with similar structures such as cylinder starter hole cover plates and make the products easier to demould.

Description

technical field [0001] The invention belongs to the technical field of moulds, and in particular relates to a static mold pre-core-pulling mold structure. Background technique [0002] Cylinder block starter hole cover plate is a commonly used auto part, its structure is as follows figure 1 As shown, there are two bosses on it, and each boss is provided with a longitudinal through hole passing through itself. At present, in the production process of products with multiple longitudinal through holes such as cylinder starter hole cover plates, die-casting molds or injection molds are often used for production. In the mold structure of products with multiple longitudinal through holes, the cores used to form multiple through holes are set on the movable mold. After the product is opened, the product stays on the movable mold, and then is set on the movable mold The ejector mechanism ejects the product and completes the demoulding. However, since the product will shrink and ho...

AI Technical Summary

Problems solved by technology

At present, in the production process of products with multiple longitudinal through holes such as cylinder starter hole cover plates, die-casting molds or injection molds are often used for production. In the mold structure of products with multiple longitudinal through holes, the cores used to form multiple through holes are set on the movable mold. After the product is opened, the product stays on the movable mold, and then is set on the movable mold The ejector mechanism ejects the product and completes the demoulding. However, since the product will shrink and hold the core tightly during the cooling molding process, for products with multiple longitudinal through holes (especially when the longitudinal through holes When the hole depth is large), if the cores used to form multiple longitudinal through holes are placed on the movable mold, the overall holding force of the product to the core will increase, which will increase the difficulty of product demoulding

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