A mold for cross-standard production of high-density large-diameter polyethylene pipes

A polyethylene pipe and large-diameter technology, which is applied in household appliances, other household appliances, applications, etc., can solve problems such as the inability to realize the pressurization process, and achieve the effects of technical improvement, reduction of raw material sag, and uniform tissue state

Active Publication Date: 2022-01-14
河北泉恩高科技管业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the pressurization process cannot be achieved if larger gauge pipes are produced from a smaller base mold

Method used

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  • A mold for cross-standard production of high-density large-diameter polyethylene pipes
  • A mold for cross-standard production of high-density large-diameter polyethylene pipes
  • A mold for cross-standard production of high-density large-diameter polyethylene pipes

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Experimental program
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Effect test

Embodiment Construction

[0020] see figure 1 , the present invention comprises base mold and the die 10 that connects base mold, core mold 11. The basement membrane is supported by the base mold mounting base 15, and the base mold includes a die transition 7, a mandrel transition 9, a mold end cap 2, a basement membrane helical body jacket 4, an inner mold expansion 5, and an outer mold expansion 6. The die transition set is outside the transition of the mandrel, the die transition is connected to the die, and the mandrel is transitionally connected to the mandrel. The mold end cover 2 located at the right end of the base film is connected to the feed port 1, and the polyethylene material in molten state after heating enters the base mold through the feed port, and the polyethylene material in the front section of the base film passes through the mesh basket 3 corresponding to the base film helicoid outer coat 4, Then through the gap between the inner mold expansion 5 and the outer mold expansion 6, ...

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PUM

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Abstract

A mold for the cross-standard production of high-density large-diameter polyethylene pipes, including a base mold and a die connected to the base die, and a core die. The inner diameter of the die inlet is smaller than the inner diameter of the outlet, and the inner diameter of the die inlet and the outlet of the die transition The inner diameter is matched, the outer diameter of the inlet of the mandrel is smaller than the outer diameter of the outlet, and the outer diameter of the inlet of the mandrel matches the outer diameter of the outlet of the mandrel transition; the inner wall of the mandrel is provided with an annular combined heating belt. The present invention breaks through the conventional idea of ​​changing from a large basic mold to a small core mold and extends downwards. By improving the structure of the designed core mold, the design of the mouth and core mold is extended upwards on the basis of the smaller basic mold, so that the mold with a smaller size can be realized. The head machine and base mold produce pipes with larger specifications. It can greatly reduce equipment investment, and can effectively reduce the sagging phenomenon of raw materials, which is conducive to realizing the technical improvement of the production of super large and super thick pipes from ordinary raw materials.

Description

technical field [0001] The invention relates to a mold, in particular to a mold used for cross-standard production of high-density and large-diameter polyethylene pipes. Background technique [0002] High-density polyethylene materials have good compression resistance and environmental protection performance and are widely used. High-density large-diameter polyethylene pipes are mostly used for water supply pipes. At present, the production method in the plastic pipe industry generally meets the production needs of customers by purchasing matching entire production lines. All production companies will encounter the situation that a large number of orders cannot be completed due to incomplete specifications of the production line. Purchasing a matching entire production line is a routine solution that has been used consistently, but if the order quantity is insufficient, the invested equipment funds will not be recovered and the operating rate of the equipment will be seriou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/32B29C48/86B29K23/00B29L23/00
CPCB29C48/32B29C48/865B29K2023/065B29L2023/22
Inventor 孙恩功屈桂照王荣辉张光涛甘露
Owner 河北泉恩高科技管业有限公司
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