Two-color mold

Abstract

The invention discloses a two-color mold, which includes an upper template (1), a lower template (2), a slider (3) and a mold base (4), and the lower template (2) is fixed on the mold base (4) Above, the upper template (1) is located above the lower template (2), a front mold push plate (5) is provided between the upper template (1) and the lower template (2), and the slider (3) Set on the front mold push plate (5), the front mold push plate (5) and the upper template (1) are disengaged from the lower template (2) when demoulding, and the front mold push plate (5) ) is separated from the upper template (2), the lower surface of the mold base (4) is fixed with a turntable, the slider (3) is provided with a guide post hole (6), and the upper template ( 1) There is a guide post (7) that slides and fits with the guide post hole (6). The present invention provides a two-color mold that requires low mold processing precision and greatly reduces the cost.

Description

Technical field [0001] The invention relates to an injection mold, in particular to a two-color mold. Background technique [0002] Most plastic products are formed by injection molds. With the help of injection molds, plastic products with the required shape can be efficiently formed, thus accelerating the pace of development of injection molds. Two-color injection means combining two different colors or different types of plastic The process of making finished products with different colors or different appearance hardness through injection molding process. [0003] According to the prior art, when molding plastic products with two colors or more than two colors, especially for products with two cavities and cores, there are two-shot injection molding products, and both sides of the product have plastic encapsulation. The mold It is necessary to replace the slider and the front mold, and the rotary shaft injection molding machine is required to complete the injection. However, t...

AI Technical Summary

Problems solved by technology

[0003] According to the existing technology, when molding plastic products with two colors or more than two colors, especially for products with secondary injection products in both cavities and cores, and products with plastic coating on both sides, the mold The slider and the front mold need to be replaced, and a rotary shaft injection molding machine is required to complete the injection molding. However, the mold processing precision of the rotary shaft two-color mold is high. The core is pulled back, and finally the mold is closed for injection molding. The injection molding process needs to repeatedly eject the mold core, and the ejection of the mold core is realized by using many ejector pins. The dimensional accuracy of the ejector pin is very high when the mold core is ejected and rotated 180° before closing the mold. That is to say, the mold processing precision is required to be high, and the cost is greatly increased.

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