Composite molding die for polyethylene winding structure wall tube

A structural wall pipe and composite molding technology, which is applied in the field of polyethylene winding structure wall pipe composite molding molds, can solve the problems affecting the release of the pipe and the service life of the mold core pipe, the easy deformation of the mold core pipe, and the inconvenience of replacing the mold core pipe. problems, to achieve the effect of small deformation, prolonging service life and eliminating lap joints

Active Publication Date: 2012-07-18
何军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention solves the defects of one-to-one correspondence between the length of the mold core tube and the pipe material in the prior art, and the production of pipes of different lengths requires the preparation of mold core tubes of various specifications, the cost is high, and the defect of inconvenient replacement of the mold core tube is provided. Simple structure polyethylene winding structure wall pipe compound molding mold, without replacement, can realize the production of pipes of various lengths and specifications, and the cost is low
[0009] The invention also solves the defect that the core tube of the mold is heated as a whole in the prior art, which causes deformation in the middle of the core tube of the mold, which affects the demoulding of the pipe and the service life of the core tube itself, and provides a composite molding of a polyethylene winding structure wall tube Mold, short length, small deformation after heating, easy demoulding, long service life

Method used

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  • Composite molding die for polyethylene winding structure wall tube
  • Composite molding die for polyethylene winding structure wall tube
  • Composite molding die for polyethylene winding structure wall tube

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: A kind of polyethylene winding structure wall pipe composite molding mold (see attached figure 1 ), including a cylinder 1 with a smooth outer wall, two sets of parallel support frames 4 are arranged inside the cylinder, the support frames are supported at both ends of the inner wall of the cylinder, and a hot air heating device 6 is arranged between the two support frames.

[0032] The cylinder has a smooth outer wall, and two annular ribs 2 are respectively fixed on both ends of the inner wall of the cylinder. The cross-section of the ribs is trapezoidal, and the two ribs at the same end form a guide rail. The outer diameter of the cylinder is adapted to the inner diameter of the polyethylene winding structure wall pipe to be produced, and the length of the cylinder is equal to 2.5 times the width of the winding unit of the polyethylene winding structure wall pipe to be produced.

[0033] The periphery of the support frame is the support edge 7 (see atta...

Embodiment 2

[0036] Embodiment 2: A kind of polyethylene winding structure wall pipe compound molding mold (see attached Figure 8 ), an electric heating device is arranged inside the cylinder, and the electric heating device includes a plurality of electric heating plates 27 fixed at intervals on the inner wall of the cylinder. Each electric heating plate is arc-shaped, and the distance between the electric heating plates is even long. All electric heating plates are connected in parallel with each other. After parallel connection, the two poles are drawn out at both ends and the power transmission brush 28 is fixed. A closed annular brush holder 28 is fixed at the position corresponding to the power transmission brush on the two supporting frames in the cylinder. The ring-shaped brush holder on the frame is opposite, and the transmission brush is matched with the ring-shaped brush holder. Refer to Example 1 for all the other structures.

[0037] Taking the production of carat pipe as a...

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Abstract

The invention relates to a composite molding die for a polyethylene winding structure wall tube, which solves the defects that die core tubes of various specifications need to be prepared for producing tubing of different lengths because the length of the die core tube and the length of the tubing correspond one by one in the prior art, the cost is high and the die core tube is inconvenient to replace. The composite molding die for the polyethylene winding structure wall tube comprises a cylinder with a smooth outer wall, wherein the cylinder can be freely sheathed on a support frame in a rotating mode; the middle of the support frame is provided with an axle hole connected with a main axle; the inner wall of the cylinder is provided with an axial spacing component matched with the support frame; a heating device for heating the inner wall of the cylinder is arranged in the cylinder; the length of the cylinder is at last two times of the width of the winding unit of the polyethylene winding structure wall tube to be produced; and the length of the cylinder is at least two times of the width of the winding unit to ensure that the an overlapped part is positioned on the outer wall of the cylinder when the winding unit is winded. Temperature required by the winding unit to fuse is provided by the cylinder to guarantee the fusion effect. Meanwhile, a lap joint seam is eliminated, and the tubing quality is improved.

Description

technical field [0001] The invention relates to a composite molding die for structural wall pipes, in particular to a composite molding die for anti-deformation polyethylene winding structural wall pipes. Background technique [0002] High-density polyethylene (HDPE) winding structural wall pipes are widely used at home and abroad for rain and sewage drainage pipes. Due to the use of different structural wall designs, this type of pipe has the advantages of saving raw materials, high ring stiffness, and long service life. , stable and reliable quality, convenient connection, good airtightness and other advantages, so it has a strong market potential. [0003] There are many types of structural wall pipes with different sizes and specifications, and different types of structural wall pipes use different production equipment. The equipment products are relatively single, the comprehensive utilization performance of the equipment is poor, and there is no potential to be tapped...

Claims

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Application Information

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IPC IPC(8): B29C33/02B29C33/08B29C53/80
Inventor 何军
Owner 何军
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