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Surface brightening structure plastic section bar extrusion mould

A technology for plastic profiles and extrusion dies, which is applied in the field of designing plastic profile extrusion dies to achieve the effects of simplifying the manufacturing process, increasing the surface brightness, and being convenient for processing and manufacturing.

Inactive Publication Date: 2016-01-27
黄石市通达塑料模具有限公司
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Problems solved by technology

[0003] In view of the above problems, the object of the present invention is to provide a surface brightening structural plastic profile extrusion die, which aims to solve the problems of surface smoothness and cooling time when the molten material enters the shaping mold during the manufacturing process of the molded product, thereby improving the quality of the molded product. quality and surface smoothness

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  • Surface brightening structure plastic section bar extrusion mould
  • Surface brightening structure plastic section bar extrusion mould
  • Surface brightening structure plastic section bar extrusion mould

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Embodiment Construction

[0021] The invention discloses a surface-enhancing structural plastic profile extrusion die, comprising: a first calibrating die 1, a second calibrating die 2, and a third calibrating die 3 connected in sequence, and each calibrating die includes a sequentially stacked top plate 4, an upper Form plate 5, lower form plate 6, bottom plate 7, said upper form plate 5 and said lower form plate 6 form a mold cavity 8 for flow molding of molten blank;

[0022] Preferably, a first air chamber 41, a second air chamber 42, an air hole channel 43, and an exhaust valve 44 are provided on the top plate 4 and the bottom plate 7 on each calibrator, and the first air chamber 41 Arranged side by side with the second air chamber 42, the first air chamber 41 is connected to the exhaust valve 44 through the air hole channel 43, and the exhaust valve 44 is arranged on the top plate 4 and the bottom plate 7, so that the air generated during the molding process enters the air hole channel 43 from th...

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Abstract

The invention discloses a surface brightening structure plastic section bar extrusion mould. The surface brightening structure plastic section bar extrusion mould comprises a first setting mould, a second setting mould and a third setting mould which are sequentially connected; each setting mould comprises a top plate, an upper mould board, a lower mould board and a bottom plate which are sequentially stacked, wherein the bottom plate is arranged on the lower surface of the lower mould board, and the upper mould board and the lower mould board form a mould cavity for circulating and forming molten blank. The surface brightening structure has the advantages that by virtue of an integral processing and molding design of a brightening plate and the first setting mould, the processing and the manufacturing are convenient, so that high-temperature molten blank entering the setting moulds is quickly cooled to cling to the brightening plate; meanwhile, the molten blank is in friction with the surface of the brightening plate, so that the surface brightness of a molded product is increased to be greater than 45 degrees, and appearance quality of the molded product is improved.

Description

technical field [0001] The invention relates to the technical field of designing plastic profile extrusion dies, in particular to a plastic profile extrusion die for making a surface brightening structure of a brightening board. Background technique [0002] At present, the shaping extrusion die mainly adopts dry vacuum shaping, which means that the high-temperature molten parison coming out of the machine head is adsorbed on the inner wall of the mold cavity by vacuum negative pressure when entering the shaping die, and at the same time, the flow of cooling water is used to control the shape of the shaping die. The inner wall is continuously cooled, and the molten preform is slowly cooled and shaped. Therefore, in the process of mold making, the quality of the surface effect of shaped extrusion molded products is inseparable from the cooling structure in the mold, that is, how to effectively improve the cooling structure in the extrusion mold is an urgent problem to be solv...

Claims

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Application Information

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IPC IPC(8): B29C47/90B29C47/14B29C48/90B29C48/305
CPCB29C48/30B29C48/305B29C48/903
Inventor 胡拥军吕文强
Owner 黄石市通达塑料模具有限公司
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