Flow jetting piling molding method and device for polymer pipe

Abstract

The invention discloses a flow jetting piling molding method and device for a polymer pipe. In the spiral winding piling molding process, a melt body is buried in a formed pipe blank, and the pipe is continuously formed in cooperation with a flow jetting welding effect and a partial redrawing shaping effect generated by the melt body; the device comprises an extruder, a melt body jetting mechanism, a partial redrawing mechanism and a pipe diameter shaping adjusting mechanism; the melt body jetting mechanism is arranged at the extrusion tail end of the extruder and is buried in the formed pipe blank, and the partial redrawing mechanism and the pipe diameter shaping adjusting mechanism are distributed on the wall of the pipe blank in the circumferential direction; the partial redrawing mechanism is arranged at the corresponding position of the melt body jetting mechanism, and the melt body jetting mechanism is located inside the pipe wall; the partial redrawing mechanism is located outside the pipe wall, and a restraining space is formed between the partial redrawing mechanism and the melt body jetting mechanism. The problems that in the molded polymer pipe, the molding size is limited, the mold cost is high, the molding technology is complex, the energy consumption is high, the mechanical property is poor, the molding efficiency is low, and molding raw materials are limited are solved.

Description

technical field [0001] The invention relates to the technical field of polymer material processing and molding, in particular to a polymer pipeline jet stacking molding method and device. Background technique [0002] Compared with traditional pipes such as metal pipes, polymer pipes are corrosion-resistant, easy to install, energy-saving, low resistance to conveying fluid, environmentally friendly, small heat loss when conveying heat medium, excellent shock resistance, light weight, and low comprehensive cost of transportation, construction and maintenance , fast and reliable connection, long service life and low cycle cost, high production efficiency, suitable for industrialized large-scale production, rich raw material resources and recyclable reuse, etc. Therefore, polymer pipes are widely used in water supply and drainage, natural gas transmission, building heating, power communication sheathing pipes, water-saving irrigation and other fields. [0003] At present, the ...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a polymer pipe jet stacking molding method to solve the problem of limited molding size, high mold cost, complex molding process, high energy consumption, and poor mechanical properties in forming polymer pipes. Poor, low molding efficiency, limited molding raw materials, etc.

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