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Manufacturing process of internal thread reinforced plastic pipe convenient to assemble

A manufacturing process and technology of plastic pipes, applied in the field of internal thread reinforced plastic pipe manufacturing technology, can solve the problems of troublesome molding and pressing, incapable of continuous production, etc., achieve the effects of fast forming speed, realization of continuity, and increase of production efficiency

Inactive Publication Date: 2020-10-02
武汉市新洲三角塑料制品有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages of existing internal threaded plastic pipes in the prior art that molding and molding are troublesome and cannot be produced continuously, and propose a manufacturing process for internally threaded reinforced plastic pipes that is easy to assemble

Method used

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  • Manufacturing process of internal thread reinforced plastic pipe convenient to assemble
  • Manufacturing process of internal thread reinforced plastic pipe convenient to assemble
  • Manufacturing process of internal thread reinforced plastic pipe convenient to assemble

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0022] refer to Figure 1-3 , a manufacturing process for internally threaded reinforced plastic pipes that is easy to assemble, including the following main steps:

[0023] A, extrusion molding: the molten hot-melt plastic 81 is extruded into the die cavity 8 through an extruder, so that the hot-melt plastic 81 forms an internally threaded plastic pipe;

[0024] B. Temperature difference cooling: the motor 6 rotates so that the cooling water in the cooling pool is pumped into the pump body 7 through the water pipe 72 and sent into the short pipe 52 through the water delivery pipe 71 to enter the mold tube 1, and the cooling water in the mold tube 1 exchanges heat th...

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Abstract

The invention discloses a manufacturing process of an internal thread reinforced plastic pipe convenient to assemble. The manufacturing process comprises the following main steps of extrusion forming;temperature difference cooling; thread demoulding; and continuous production; manufacturing equipment used in the manufacturing process of the internal thread reinforced plastic pipe convenient to assemble comprises a mold pipe and a motor, wherein one end of the mold pipe is sealed, a threaded mold groove is formed in the outer surface of the mold pipe, the outer side of the mold pipe is sleevedwith a hollow demolding pipe in a non-contact rotating mode. According to the manufacturing process, extrusion forming is conducted through a pressing mold gap between the mold pipe and the hollow demolding pipe, a formed internal thread plastic pipe generates the internal and external hardness difference by using gradient utilization of cooling water, namely, the friction force difference is generated, a cooled formed hot melting plastic is rotated and withdrawn along the thread mold groove through rotation of the hollow demolding pipe, and the molten hot-melt plastic is continuously cooled,formed and demolded to realize continuous production.

Description

technical field [0001] The invention relates to the field of plastic technology, in particular to a manufacturing process for an internal thread reinforced plastic pipe that is easy to assemble. Background technique [0002] Plastic pipes are necessary materials for water conservancy construction. Ordinary plastic pipes are easily squeezed by external forces and damaged during use. [0003] The existing reinforced plastic pipe adopts external thread structure, and the thread is molded on the outside of the plastic pipe to increase the pressure resistance of the plastic pipe. However, the connection and installation of the external thread plastic pipe is more troublesome, and the direct pipe connection welding or glue joint cannot guarantee For effective sealing, threaded connection is difficult to connect because the outer thread is often damaged during transportation, while the inner threaded plastic pipe is less likely to be damaged by transportation and use due to the thr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C67/00B29C35/16B29C37/00B29L1/00B29L23/00
CPCB29C35/16B29C37/0021B29C67/0022B29C2035/1616B29L2001/00B29L2023/00
Inventor 万大朋
Owner 武汉市新洲三角塑料制品有限公司
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