Ejection mechanism of fixed die push plate

Abstract

The invention relates to an ejection mechanism of a fixed die push plate, which comprises a fixed die plate. Two corresponding installation grooves are arranged on the upper face and the lower face of the fixed die plate, an ejector pin retaining plate and a push plate are installed in the installation groove on the upper face of the fixed die plate from bottom to top, and three T-shaped installation holes are installed on the upper face of the push plate at equal intervals. A gasket and a plurality of belleville springs are padded on T-shaped shoulders of the installation holes from bottom to top, T-shaped guide bars are sleeved on the gasket and the belleville springs, and the lower portions of the heads of the guide bars protrude out to form small circular truncated cones which are in clearance fit with the T-shaped shoulders of the installation holes. The lower face of the push plate between every two installation holes abuts against an ejector pin. A fixed inner die is arranged in the installation groove on the lower face of the fixed die plate, release rods are installed on the left side and the right side of the fixed inner die, and the heads of the release rods abut against two sides of the lower face of the push plate. The ejection mechanism adopts the belleville springs to serve as pushing power producers, achieves fixed die auxiliary pushing functions during die sinking, and is ingenious in structure, even in pushing force distribution, and capable of improving force distribution quality of products.

Description

technical field [0001] The invention belongs to the field of mold accessories, and in particular relates to an ejection mechanism of a push plate of a fixed mold. Background technique [0002] In the current mold production process, during the die-casting operation, the product is easy to stick to the mold and deform, and the national quality inspection standard has certain requirements for the degree of deformation of the product. Generally, the degree of deformation should be lower than the deformation requirements of plastic processing. In order to avoid product damage caused by plastic processing in the later stage, the qualified rate of finished products will be reduced. In order to solve the above problems, the ejection mechanism is generally installed on the mold, but the structure of the existing ejection mechanism is relatively complicated, and the distribution of the ejection force is uneven, which is easy to cause the mold to be jammed, so that the product cannot ...

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Problems solved by technology

[0002] In the current mold production process, during the die-casting operation, the product is easy to stick to the mold and deform, and the national quality inspection standard has certain requirements for the degree of deformation of the product. Generally, the degree of deformation should be lower than the deformation requirements of plastic processing. To avoid product damage caused by plastic processing in the later stage, which reduces the qualified rate of finished products

In order to solve the above problems, the ejection mechanism is generally installed on the mold, but the structure of the existing ejection mechanism is relatively complicated, and the distribution of the ejection force is uneven, which is easy to cause the mold to be jammed, so that the product cannot be ejected and the deformation is reduced. the goal of

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