Buffer runner rhombic core model plastic hard tube extruder head

Abstract

The invention discloses a buffer runner rhombic core model plastic hard tube extruder head, comprising a cushion block, a diverter, a die body, a core model, a die, and an air intake lever, wherein, the cushion block, the diverter, the die body, the core model, and the die form a melt channel, the outer side of the die body is provided with a heating ring, the die body is connected with the die through an adjusting screw; the outer side of the die body and the die is provided with a gland, the gland is connected with the die body through a fixed screw; the core model is rhombic, and the outlet end which belongs to the core model and is corresponding to the die is provided with at least one buffer groove. According to the invention, the advantage of simple structure is achieved, a through filtering plastic tube extruder head with high quality of plastic tubes and cost saving property is produced, thus the problems of nonuniform wall thickness, corrugated tube inner wall, traction spin and the like are solved.

Description

technical field [0001] The invention relates to a head of a pipe extruder, in particular to a head of a plastic hard pipe extruder with a rhombic core mold of a buffer flow channel, which is suitable for extrusion of polyolefin resins, especially heat-sensitive PVC resins. Background technique [0002] In the prior art, the head of a plastic hard pipe extruder includes a pad, a flow divider, a mold body, a mandrel, a die, and an air intake rod. The module constitutes a melt channel, the outside of the mold body is provided with a heating ring, and the mold body and the die are connected by adjusting screws; the outside of the die body and the die is provided with a gland, and the The gland and the mold body are connected by fixing screws. In order to make the thickness of the extruded pipe uniform, the core mold and the die must be kept concentric. During the extrusion process, due to some reasons, the The melt flows unevenly in the flow channel, causing the mandrel to be...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the deficiencies of the prior art, the present invention provides a straight-through filter type plastic pipe extruder head with simple structure, high-quality plastic pipe production and cost saving, so as to solve the problems of uneven wall thickness and inner wall thickness of the pipe. Corrugated, traction and slippage, etc., to improve the quality of products and save production costs

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