Plastic injection-pressing compound forming process and its mould

A composite molding and injection pressure technology, which is applied to the plastic injection-pressing composite molding process and the transformation of its molds, can solve the problems of difficulty in cleaning the feeding chamber, a large number of pouring systems, and troublesome production operations, achieving a good production environment, improving Production environment, easy assembly effect
CN1586874AInactive Publication Date: 2005-03-02GUANGDONG UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
GUANGDONG UNIV OF TECH
Publication Date
2005-03-02
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The compound plastic injection-pressing formation process includes heating to plasticize, the first mold clamping, injecting molten plastic into the closed mold cavity, heating and maintaining, the second mold clamping, cooling to set inside the mold cavity and demolding. The mold includes female mold, male mold, mold clamping guide mechanism and two stages of mold closing and opening mechanism. The present invention has improved production environment and high production efficiency, can produce precise large plastic part with complicated shape, is favorable to the production with plastic with poor flowability and great viscosity.
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Description

1. Technical field:

[0001] The invention is a plastic injection-compression composite molding process and its mold, and belongs to a plastic injection-compression composite molding process and its mold transformation technology. 2. Background technology:

[0002] At present, plastic molding methods mainly include plastic injection molding, plastic compression molding and plastic die-casting. Among them, plastic injection molding is the heating and plasticization of plastic in the barrel of the injection molding machine. Under the action of injection pressure, the plastic is melted. It is sprayed from the nozzle at the front end of the barrel, and injected into the closed cavity of the mold through the pouring system, and then cooled and shaped. Finally, open the cavity, demold and take out the product. This kind of molding process is often used in the production of plastic parts with more complex shapes. However, due to the limitation of the maximum melt flow, this process cannot...

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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