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Plastic extruder barrel

A plastic extruder and barrel technology, applied in the field of plastic extruders, can solve problems such as reducing production efficiency, and achieve the advantages of improving production efficiency, improving melt flow stability and pressure stability, and improving axial conveying speed. Effect

Active Publication Date: 2015-05-13
广西钦保网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a plastic extruder barrel, which can solve the problem of lower production efficiency in the plastic extruder barrel

Method used

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  • Plastic extruder barrel

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Embodiment Construction

[0013] The present invention will be described in further detail below in conjunction with accompanying drawing embodiment:

[0014] figure 1 The barrel of the plastic extruder shown includes a barrel 1, and the barrel 1 has a feeding section 1-1, a plasticizing section 1-2 and a homogenizing section 1-3, and the feeding section 1-1 has a The casing 2 is provided with a shoulder to limit and position the casing 2, and the casing 2 is fixed in the casing 1 through a plurality of bolts; the inner wall of the casing 2 has a ladder arranged in the axial direction, and the The inner diameter of the steps decreases toward the homogenization section 1-3, and the inner diameter of the last step is the same as that of the plasticizing section 1-2 of the cylinder body 1, and the steps are connected by inclined planes to avoid jamming; sleeve body 2 There are also a plurality of hemispherical bumps 3 distributed on the inner wall.

[0015] When working, the material enters the screw gr...

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Abstract

The invention discloses a plastic extruder barrel, and relates to the technical field of plastic extruders. The plastic extruder barrel comprises a barrel body provided with a feeding section, a plastifying section and a homogenizing section, wherein steps are arranged on the inner wall of the feeding section of the barrel body in the axial direction, and the inner diameter of the feeding section is gradually decreased in the direction of the homogenizing section. Compared with the prior art, the friction force between a material and the barrel body is increased at the feeding section of the barrel, the feeding pressure is increased, so that the production efficiency is increased, and the flow stability and the pressure stability of a melt are improved.

Description

technical field [0001] The invention relates to the technical field of plastic extruders, in particular to a barrel of a plastic extruder. Background technique [0002] Plastic extrusion molding mainly adopts plastic extruder. The barrel is an important part of the plastic extruder. It is usually a cylindrical barrel with a smooth inner surface. The materials are conveyed, compacted, plasticized and injected in the barrel. , During the process of the above-mentioned shape change, the material is conveyed forward through the friction between the inner wall of the barrel and the surface of the screw. Due to the smooth inner surface of the existing machine barrel, the friction force is small, and the axial slip caused by driving the material forward when the screw rotates is small, that is, the forward conveying rate of the material is low, which reduces the production efficiency. Contents of the invention [0003] The object of the present invention is to provide a barrel o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/66
CPCB29C48/685
Inventor 卢丽
Owner 广西钦保网络科技有限公司
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