An injection mold without draft and an injection molding method using the same

A technology of injection mold and draft angle, which is applied in the direction of coating, etc., can solve the problems of enlargement, mold cost and injection molding cost, and long mold production cycle, so as to shorten the manufacturing cycle, simple and reasonable structure, and shrink the mold effect of size
CN102294789AInactive Publication Date: 2011-12-28毅昌金型(东莞)五金制品有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
毅昌金型(东莞)五金制品有限公司
Publication Date
2011-12-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the technical field of injection mold equipment, in particular to an injection mold without a draft and an injection molding method using the mold, an injection mold without a draft, the ejection system includes a push block, and the fixed There are steam flow passages around the mold cavity and the movable mold core. Through the steam flow passage, the movable mold core and the fixed mold cavity can be rapidly heated and cooled during mold closing and injection molding. The overall balanced and non-inclined ejection reduces the size of the original mold; an injection molding method for an injection mold without a draft, through the clamping and injection of the movable mold core and the fixed mold cavity with steam channels all around glue, heating, cooling, and mold opening, the product is heated rapidly first, and when the product is formed, it is in the process of holding pressure, and the fixed mold cavity and the movable mold core are rapidly cooled at the same time, which can reduce the production cost of the mold and avoid the product from being out of the mold If the slope is too small, the product will be whitened or stick to the mold, or if the angle is too large, the appearance and assembly will be affected.
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Description

technical field

[0001] The invention relates to the technical field of injection mold equipment, in particular to an injection mold without draft angle and an injection molding method using the mold. Background technique

[0002] At present, in the traditional injection molding process, the product must be designed with a certain mold slope (the higher the product, the larger the slope) to achieve the injection molding of the product, so that after the product is injected, when the mold is opened, use Only when the product can stay on the moving mold can the product be ejected. If the slope of the mold is too small, the product will stick to the fixed mold when the mold is opened, which will make it inconvenient to take out the product and scratch the product, which will affect the appearance of the product, or it will be difficult to eject the product, and it will easily whiten the product surface , resulting in a higher scrap rate.

[0003] In order to solve the above-me...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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