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Ribbed structure of ribbed tube molding mould

A technology of reinforced pipes and reinforcing ribs, which is applied in the field of reinforced pipe forming modules, can solve the problems of skin tearing, physical properties, decline, etc., and achieve the effect of uniform appearance, smooth surface and improved physical properties

Active Publication Date: 2012-12-26
公元管道(上海)有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention aims at the above-mentioned problems such as partial skin tearing and physical property degradation existing in the production process of the existing reinforced pipe, and provides a novel rib-shaped structure on the forming module of the reinforced pipe

Method used

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  • Ribbed structure of ribbed tube molding mould
  • Ribbed structure of ribbed tube molding mould
  • Ribbed structure of ribbed tube molding mould

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Embodiment Construction

[0024] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0025] The present invention adds two small ribs on the molding module through the analysis and calculation of the pressure change and material distribution in the molding process, so that the influence of the extrusion pressure on the filling of the ribs is reduced, and the surface tearing caused by the secondary filling is avoided. The problem is that after the modification of the ribbed structure of the module, the appearance of the pipe is uniform, the surface is smooth, and there is no tearing phenomenon, and the physical properties of the pipe have also been greatly improved.

[0026] Based on the above principles, the overall structure of the present invention is as follows: figure 1 As shown, a rib-shaped structure on a reinforced pipe m...

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Abstract

The invention discloses a ribbed structure of a ribbed tube molding mould. Two mould cavities capable of forming reinforcing ribs are reserved on the molding mould so as to reduce the influence of an extrusion pressure on ribbing and solve the problem of surface damage caused by secondary filling. After the ribbed structure of the mould is modified, a tube has uniform appearance, a smooth surface, no damage and greatly improved physical properties.

Description

Technical field: [0001] The invention relates to a mold for forming a reinforced pipe, in particular to a forming module for a reinforced pipe. Background technique: [0002] The PVC-U reinforced pipe is a chemical building material, which involves the field of plastic pipes and is widely used in urban drainage and sewage projects. [0003] The PVC-U reinforced pipe adopts the structural principle of I-beam, and there are annular ribs distributed at intervals on the outer wall of the pipe, so that the pipe has higher rigidity while ensuring the smooth inner wall of the pipe. The tube saves about 30-40% of the material compared with the traditional straight wall tube. [0004] Of course, the special structure also requires the particularity of its molding method, such as figure 1 As shown, a complete set of molding modules 100 that rotate circularly along a fixed track is used, and an injection molding cavity 102 for forming ribs is provided on it. A straight pipe extrusio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C69/02B29C45/26B29C33/42
Inventor 张建均徐亦炯刘良斌林伟王成荣
Owner 公元管道(上海)有限公司
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