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A counter-rotating extrusion device, extruder and material production method

An extrusion device and material technology, which is applied in the field of counter-rotating extrusion devices, can solve the problems of low extrusion speed, achieve the effects of increasing the speed, strengthening the melting and plasticizing effect, and reducing the calendering effect

Active Publication Date: 2021-04-23
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this reason, the present invention proposes a counter-rotating extrusion device, which has a simple structure, improves the melting and mixing effect and solves the problem that the extrusion speed is too low

Method used

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  • A counter-rotating extrusion device, extruder and material production method
  • A counter-rotating extrusion device, extruder and material production method
  • A counter-rotating extrusion device, extruder and material production method

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Embodiment Construction

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0033] In the description of the present invention, if there are descriptions of first, second, third, fourth, etc., it is only for the purpose of distinguishing technical features, and it cannot be understood as indicating or implying relative importance or implicitly indicating the indicated The number of technical features or implicitly indicates the sequence of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting and connecting should be unders...

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Abstract

A counter-rotating extruder, comprising a barrel and a screw mechanism arranged in the barrel, characterized in that the screw mechanism includes a first screw and a second screw; the top diameter and root diameter of the first screw are respectively the same as the second The root diameter and the top diameter of the screw are always meshed with each other; the first stepped curve structure is set between the root diameter and the top diameter of the first screw, and the first stepped curve structure is set between the root diameter and the top diameter of the second screw. Tangent second stepped curve structure; first screw and second screw rotate in opposite directions. The present invention strengthens the disturbing effect through the first stepped curve structure and the second stepped curve structure. Through the first stepped curve structure and the second stepped curve structure, the two screws that were originally closed to each other become open to each other, effectively reducing the calendering effect in the meshing area. In addition, through the first stepped curve structure and the second stepped curve structure, the C-shaped chamber, which was originally separated from the two screws, is expanded into an overall "8"-shaped chamber.

Description

technical field [0001] The invention belongs to the field of multi-screw extruders, and in particular relates to a counter-rotating extrusion device, an extruder and a material production method. Background technique [0002] Co-rotating and counter-rotating multi-screw extruders mainly include a barrel and multiple screws installed in the inner cavity of the barrel. Among them, counter-rotating twin-screw extruders are the most widely used in counter-rotating multi-screw extruders. The traditional counter-rotating twin-screw extruder mostly adopts the working mode of two screws rotating in opposite directions at the same speed. The material is enclosed in several independent C-shaped chambers and pushed towards the exit direction, and due to the effect of positive displacement, a strong force will be produced. Pressure building ability. [0003] At present, the C-shaped chambers formed are independent and closed to each other, lacking the mixing mechanism between each othe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/41B29C48/605B29C48/65
CPCB29C48/41B29C48/605B29C48/65
Inventor 徐百平喻慧文张志旋肖书平曹明轩杜遥雪
Owner WUYI UNIV
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