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Production method for polyethylene double-crest reinforced spiral winding pipes

A technology of a spirally wound pipe and a production method, which is applied to the production field of a polyethylene reinforced spirally wound double-wave corrugated pipe for water supply and drainage, and can solve the problems of insufficient strength of bonding seams and the like

Inactive Publication Date: 2019-01-18
谭连平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the insufficient bonding joint strength of existing polyethylene pipes and solve the shortcomings of different stress concentrations, and improve the compressive strength of corrugated pipes, a production method for polyethylene double-peak reinforced spiral wound pipes was invented.

Method used

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  • Production method for polyethylene double-crest reinforced spiral winding pipes
  • Production method for polyethylene double-crest reinforced spiral winding pipes
  • Production method for polyethylene double-crest reinforced spiral winding pipes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A production device for polyethylene double-peak reinforced spiral wound pipe, the production device refers to an extrusion winding molding production line, and the extrusion winding production line includes a recycled polyethylene twin-screw extruder 1, a polyethylene double-peak reinforced profile package Covering extruder 2, co-extrusion die for double-wave reinforced profile 3, vacuum setting cooling water tank 4, water pump 5, vacuum pump 6, polyethylene double-peak reinforced profile 7, tractor 8, hot air heating device 9, glue melting extruder 10 , melt glue layer 11, winding frame 12, radial pressure roller 13, axial baffle 14, pipe pitch adjustment device 15, winding roller transmission device 18, chain tensioning wheel 19, winding roller 16, winding machine spindle 17, Mouth 2-1, left high half peak core mold 2-2, right high half peak core mold 2-3, middle low peak core 2-4, molten regenerated polyethylene 2-5, molten coated polyethylene 2 -6; The connection r...

Embodiment 2

[0047] The winding machine is to wind and bond the polyethylene double-peak reinforced spirally wound pipe in a clockwise direction when the inner diameter of the polyethylene double-peak reinforced spirally wound pipe is 200 mm.

Embodiment 3

[0049] The winding machine is to wind and bond the polyethylene double-peak reinforced spirally wound pipe in a counterclockwise direction when the inner diameter of the polyethylene double-peak reinforced spirally wound pipe is 1000 mm.

[0050] The rest is the same as above.

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Abstract

The invention discloses a production method for polyethylene double-crest reinforced spiral winding pipes, and belongs to the field of water supply and drainage pipes. The production method includes the steps of extruding melted regenerated polyethylene by a regenerated-polyethylene twin-screw extruder, extruding coated polyethylene by a coating extruder, extruding a polyethylene reinforced double-crest sectional material by a mold for the polyethylene reinforced double-crest sectional material, cooling and shaping the polyethylene reinforced double-crest sectional material by a shaping sleevein a vacuum shaping and cooling water tank, continuously drawing the polyethylene reinforced double-crest sectional material out of the vacuum shaping and cooling water tank by a tractor, and feedingthe polyethylene reinforced double-crest sectional material into a winding machine. The production method has the advantages that heating, splicing and winding are performed synchronously, and integrated online forming is realized, so that the cost of the pipes is reduced, and the strength of the pipes is improved; the production method can be widely applied to the pipe production field.

Description

technical field [0001] The invention belongs to the field of plastic pipes for urban and rural municipal buildings, in particular to a production method for polyethylene reinforced spirally wound double-peak corrugated pipes for water supply and drainage. Background technique [0002] With the vigorous advancement of urbanization, technological innovation in the field of water supply and drainage is also changing with each passing day. Published patent: Hollow double-flat-wall plastic-steel winding pipe, notification number: CN 203052005 U, which discloses that it is formed by splicing several ring-shaped polyethylene plastic steel strips through linear low-density polyethylene primer, and the outer wall and inner wall are There are ring ribs in between, etc. Another published patent: a large-diameter hollow double-wall plastic-steel winding drainage pipe production equipment, announcement number: CN 202702609U, discloses a large-diameter hollow double-wall plastic-steel wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C69/00
CPCB29C69/00
Inventor 代志春谭连平
Owner 谭连平
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