Jetting out method for molding bicolor plastic cement

An injection molding and two-color molding technology, which is applied in the field of two-color plastic injection molding, can solve the problems of product yield decline and unsightly appearance
CN101003170AInactive Publication Date: 2007-07-25MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
MITAC PRECISION TECH CO LTD SHUNDE DISTRICT FOSHAN CITY
Publication Date
2007-07-25
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

An ejection moulding method for preparing bichromic plastic product includes such steps as closing mould, using the first nozzle to eject a transparent material into the first mould, cooling, opening the mould, turning the movable part of the first mould to the position of the second nozzle, matching it with the fixed part of the second mould, closing the mould while turning the movable part of the second mould to the position of the first nozzle, matching it with the fixed part of the first mould, using the second nozzle to eject a color material into the second mould, cooling, and demoulding.
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Description

technical field

[0001] The invention relates to a two-color plastic injection molding method, in particular to a two-color plastic injection molding method which has no traces of feeding points on the transparent surface, does not need to cut the feeding points, and effectively improves the production yield. Background technique

[0002] Two-color plastic injection molding refers to the molding method of injecting two different plastic materials into the mold under certain process conditions to form a plastic product in which the two materials are integrated.

[0003] The existing two-color plastic injection molding products are usually buttons for 3C products, PDA palmtop computer casings, mobile phone casings, lamp lenses for automobiles, etc.

[0004] In all current two-color plastic injection molding processes, when the transparent material is injected first, there will be traces of the feed point within the range of the transparent material, and at the same time, second...

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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