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Counter rotating extrusion device, extruder and material manufacturing 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, reducing the calendering effect, and strengthening the disturbance effect

Active Publication Date: 2020-05-15
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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  • Counter rotating extrusion device, extruder and material manufacturing method
  • Counter rotating extrusion device, extruder and material manufacturing method
  • Counter rotating extrusion device, extruder and material manufacturing 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

The invention provides a counter rotating extrusion device. The counter rotating extrusion device comprises a barrel and a screw mechanism arranged in the barrel, and is characterized in that the screw mechanism comprises a first screw and a second screw; the top diameter and the root diameter of the first screw are meshed with the root diameter and the top diameter of the second screw; first stepcurve structures are arranged between the root diameter and the top diameter of the first screw, and second step curve structures always tangent to the first step curve structures are arranged between the root diameter and the top diameter of the second screw; and the first screw and the second screw rotate in the counter direction. According to the counter rotating extrusion device, the disturbance effect is enhanced through the first step curve structures and the second step curve structures. By the first step curve structures and the second step curve structures, the two screw s which areoriginally mutually closed become open to each other, so that the calendering effect of meshing areas is effectively reduced. In addition, C-chambers which are separated by the two screws are expandedinto an overall "8" type chamber by the first step curve structures and the second step curve structures.

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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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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