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A barrel screw mechanism

A screw and barrel technology, applied in the field of extruders, can solve problems such as difficult to meet mixing processing, and achieve the effect of meeting processing requirements and combining flexible and changeable effects.

Active Publication Date: 2021-11-26
OPTA POLYMER JIANGSU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is difficult to uniformly disperse a variety of fillers and other additive components into the plastic with a single extrusion shear force of a conventional screw, making it difficult for existing extruders to meet the needs of mixing processing

Method used

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  • A barrel screw mechanism
  • A barrel screw mechanism
  • A barrel screw mechanism

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Embodiment Construction

[0027] In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0029] Second, "one embodiment" or "an embodiment" referred to herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to ...

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Abstract

The invention discloses a machine barrel screw mechanism, comprising: a machine barrel including a feeding section and an extruding section, both of which have an axially transparent channel inside; the butt joint of the feeding section and the extruding section The ends are connected to each other and fixed, and the passages of the two jointly form an extrusion cavity extending axially; Several co-extrusion modules on the co-extrusion module; screw ribs or protrusions are provided on the outer wall of the co-extrusion module, and the structures of the co-extrusion modules fitted on the straight guide bar can be the same or different, and None of the mixing extrusion modules sleeved on the straight guide rod can rotate in a circumferential direction relative to the straight guide rod. The screw of the present invention adopts a modular design, and is equipped with multiple mixed extrusion modules of different structures, and can flexibly assemble screws of various specifications and performances according to actual needs.

Description

technical field [0001] The invention relates to the technical field of extruders, in particular to a barrel screw mechanism. Background technique [0002] The extruder is one of the types of plastic machinery. Its working principle is to rely on the pressure and shear force generated by the rotation of the screw, so that the material can be fully plasticized and evenly mixed, and finally shaped by the die to output the product. Therefore, the barrel and the screw installed inside the barrel are the core components of the extruder. The structure and performance of the screw determine the productivity, plasticizing quality, dispersion of fillers, and the quality of an extruder. Melt temperature, power consumption, etc. [0003] The screw used in the existing extruder is generally of integral structure, and the outer surface of the screw is a single tapered thread structure. However, in recent years, with the development of thermoplastic blending, improvement and reinforcemen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/25B29C48/565
CPCB29C48/2561B29C48/2564B29C48/565
Inventor 刘家诚张成徐鑫森
Owner OPTA POLYMER JIANGSU