Mold for cross-specification production of high-density large-mouth diameter polyethylene pipes

A polyethylene pipe, large-diameter technology, used in household appliances, other household appliances, applications, etc., can solve problems such as the inability to realize the pressurization process, and achieve the effect of achieving technical improvement, uniform organizational state, and reducing the flow of raw materials.

Active Publication Date: 2020-06-09
河北泉恩高科技管业有限公司
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  • Summary
  • 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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  • Mold for cross-specification production of high-density large-mouth diameter polyethylene pipes
  • Mold for cross-specification production of high-density large-mouth diameter polyethylene pipes
  • Mold for cross-specification production of high-density large-mouth 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

The invention discloses a mold for cross-specification production of high-density large-mouth diameter polyethylene pipes. The mold for cross-specification production of high-density large-mouth diameter polyethylene pipes comprises a base mold, an opening mold and a core mold, the opening mold and the core mold are connected with the base mold, the inner diameter of an inlet of the opening mold is smaller than that of an outlet, the inner diameter of the inlet of the opening mold is matched with that of a transition outlet of the opening mold, and the outer diameter of an inlet of the core mold is smaller than that of an outlet, the outer diameter of the inlet of the core mold is matched with the outer diameter of the transition outlet of the core mold; and an annular combined heating belt is arranged on the inner wall of the core mold. The idea that a conventional large base mold is changed into a small opening core mold to extend and expand downwards is broken through, the opening core mold is designed through structural improvement, the opening core mold and the core mold extend upwards on the basis of the small base mold, and a pipeline of a large specification can be producedthrough a mold head machine and the base mold of the small specification. The equipment investment can be greatly reduced, the raw material sag phenomenon can be effectively reduced, and the technical improvement of producing the super-large and super-thick pipe through a common raw material is facilitated.

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 Applications(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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