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Co-extrusion dies for extruding plastic profiles with v-shaped wood grain

A technology for a plastic profile and a co-extrusion die is applied in the field of co-extrusion die for extruding a V-shaped wood grain plastic profile, which can solve the problems of difficulty in forming a striped shape, not clear enough, and disordered wood grain of the profile, etc. Processing, simple structure effect

Inactive Publication Date: 2016-06-29
TONGLING GREAT EXTRUSION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can produce imitation wood-grain profiles, the wood grains of the profiles are chaotic and not clear enough, and it is difficult to form the striped shape of real wood

Method used

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  • Co-extrusion dies for extruding plastic profiles with v-shaped wood grain
  • Co-extrusion dies for extruding plastic profiles with v-shaped wood grain
  • Co-extrusion dies for extruding plastic profiles with v-shaped wood grain

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Experimental program
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Effect test

Embodiment Construction

[0012] Such as figure 1 and figure 2 As shown, the co-extrusion die head is composed of machine neck 6, diverter cone support plate 5, core support plate 4, compression plate 3, co-extrusion preform plate 2, mouth template 1 and core 7, and the core 7 is set In the middle of the core support plate 4, the co-extrusion channel on the co-extruded preformed plate 2 communicates with the intermediate cavity 8, which consists of a main channel 22, a branch channel 26 extending to both sides of the cavity co-extrusion surface 81, and a fan-shaped channel 23 It is composed of a flat flow channel 24, a branch flow channel 26 communicates with the flat flow channel 24 through a fan-shaped flow channel 23, and a feed port 21 connected with the main flow channel 22 is opened on the side wall of the co-extrusion preformed plate 2.

[0013] Such as image 3 As shown, the cross-sectional width of the tiled flow channel 24 gradually increases from the middle to both sides, and the width H1...

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Abstract

The invention relates to a co-extruding die head for extruding plastic materials with V-shaped wood grains. The co-extruding die head for extruding plastic materials with V-shaped wood grains comprises a co-extruding preforming plate, wherein a co-extruding flow channel communicated with an intermediate cavity is formed in the co-extruding preforming plate, and comprises a main flow channel, branch flow channels expanding towards two sides of a cavity co-extruding surface, a tiling flow channel leading to the cavity co-extruding surface and a fan-shaped flow channel communicated with the branch flow channels and the tiling flow channel; the width of the cross section of the tiling flow channel increases gradually from the middle to two sides, and the widths H1 of two side ends are 1.2-2 times the width H of the middle. According to the invention, wood-grain color master batch particles can be accumulated towards two sides of the material co-extruding surface through changing the cross section width of the tiling flow channel of the co-extruding flow channel, and form distinct inverted-V-shaped wood grain lines on the surface of the plastic materials; through selecting the cross section width ratio of the tiling flow channel, the angles and the intervals of the V-shaped wood grains can be changed, so that the grain line shape of the real wood grains can be simulated.

Description

technical field [0001] The invention relates to an external co-extrusion die for extruding plastic profiles, in particular to a co-extrusion die for extruding plastic profiles with V-shaped wood grains. Background technique [0002] The usual imitation wood grain profile adopts the surface coating technology. In the film-coated profile, the profile cannot be formed at one time, and the secondary coating is usually used, which not only increases the corresponding coating equipment, but also increases the secondary processing cost. Moreover, the wood grain film of the film-coated profile does not have the effect of anti-oxidation and anti-ultraviolet, and its life is short, easy to fall off, change color, etc. [0003] At present, there is also an external co-extrusion one-time molding method to produce wood-like profiles. Chinese invention patent ZL200710047766.5 discloses a rigid PVC co-extruded imitation wood-grain outdoor furniture profile and its preparation method. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C47/12B29C48/30
CPCB29C48/30B29C48/304
Inventor 查安平蒋标徐瑞陆跃周珠红王鑫
Owner TONGLING GREAT EXTRUSION TECH