Twin-screw extruder and meshing disk element therefor

A twin-screw extruder and meshing disc technology, which is used in the fields of plastic processing machinery and twin-screw extruders, can solve the problems that cannot be adjusted again, the function is single, and the mixing quality of meshing disc element 1 decreases, and achieves good mixing. The effect of refining quality and conveying capacity or pressure building capacity, improving conveying capacity and improving mixing capacity

Active Publication Date: 2012-05-23
BEIJING UNIV OF CHEM TECH
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Problems solved by technology

Although the improved meshing disc element 1 has its conveying ability improved by the twist angle on the engaging block 11, yet, since the twist angle of each engaging block 11 is all the same, the mixing of the improved engaging disc element 1 Refining quality has declined
In addition, the improved meshing disc

Method used

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  • Twin-screw extruder and meshing disk element therefor
  • Twin-screw extruder and meshing disk element therefor
  • Twin-screw extruder and meshing disk element therefor

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[0031] In order to enable those skilled in the art to better understand the technical solution of the present invention, the meshing disc element for the twin-screw extruder and the twin-screw extruder provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0032] In order to facilitate the description of the technical solution of the present invention, in this embodiment, the torsion angle refers to the angle at which the two end faces of the engaging block rotate and stagger around the axis of the engaging disc element. The stagger angle refers to the angle at which the contacting end faces of adjacent engaging blocks rotate and stagger around the axis of the engaging disc element. The rotation direction of the engaging block is viewed from the extrusion direction, "-" means left-handed, and "+" means right-handed. The front face of the engaging disc element (engaging block) refers to the side facing the reader, and the...

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Abstract

The invention provides a twin-screw extruder and a meshing disk element therefor. The meshing disk element comprises n meshing blocks, wherein n is equal to or more than 2, torsion angles between every two end faces of the meshing blocks are different, and conveying capacity or pressing capacity of the meshing disk element is increased while the mixing quality of the meshing disk element is improved through regulating the torsion angles. The twin-screw extruder has better mixing quality and conveying capacity or pressing capacity.

Description

technical field [0001] The invention belongs to plastic processing machinery, and relates to a twin-screw extruder, in particular to an engaging disc element for the twin-screw extruder and the twin-screw extruder. Background technique [0002] Extruder is a common plastic processing machinery and equipment, which is widely used in polymer blending, filling modification and extrusion molding. Extruders are divided into single-screw extruders, twin-screw extruders and multi-screw extruders according to the number of screws. Among them, the twin-screw extruder has good feeding characteristics, is suitable for powder processing, and has better mixing, exhaust, reaction and self-cleaning functions than the single-screw extruder. In addition, twin-screw extruders offer significant advantages when processing plastics and compounds with poor thermal stability. Therefore, in recent years, various types of twin-screw extruders have emerged, such as intermeshing co-rotating parallel...

Claims

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Application Information

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IPC IPC(8): B29C47/60B29C48/585B29C48/57
CPCB29C48/57B29C48/585
Inventor 毕超李翱江波
Owner BEIJING UNIV OF CHEM TECH
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