Screw machine barrel of extruder

A barrel and screw technology, applied in the field of extruders, can solve problems such as short service life, high replacement frequency, and low work efficiency

Inactive Publication Date: 2015-04-08
JIANGSU HONGYUAN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Existing extruders generally use twin-screw extruders with twin-screw barrel design to strengthen the plasticizing function and ensure stable extrusion. However, the heat generated by the extrusion wear of the material and the barrel will cause the barrel to deform, and The inner wall of the barrel is easy to wear, resulting in short service life, high replacement frequency, high cost, and low work efficiency.

Method used

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Embodiment Construction

[0013] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0014] see figure 1 , the embodiment of the present invention includes:

[0015] A screw barrel for an extruder, comprising: a barrel body 1, a heat insulating block 2 and a wear-resistant sheet 3, the outer surface of the heat insulating block 2 is in interference fit with the inner surface of the barrel body 1, and the The wear-resistant sheet 3 is adhered to the inner surface of the heat insulating block 2, and the inner surface of the barrel body 1 is evenly distributed with wavy protrusions 11, and the outer surface of the heat insulating block 2 is evenly distributed. There are wavy grooves 21, and the wavy protrusions 11 on the inner surface of the barrel body cooperate with the wavy gro...

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Abstract

The invention discloses a screw machine barrel of an extruder. The screw machine barrel comprises a machine barrel body, a heat-insulating block and an abrasion-resistant sheet, wherein the outer surface of the heat-insulating block is in interference fit with the inner surface of the machine barrel body; the abrasion-resistant sheet is adhered to the inner surface of the heat-insulating block; and wave-shaped bulges are uniformly distributed on the inner surface of the machine barrel body, wave-shaped grooves are uniformly distributed in the outer surface of the heat-insulating block, and the wave-shaped bulges positioned on the inner surface of the machine barrel body are matched with the wave-shaped grooves formed in the outer surface of the heat-insulating block. By adopting the mode, the screw machine barrel disclosed by the invention can be used for enhancing the abrasion-resistant property and the heat-resistant property so that the machine barrel is difficult to abrade and can also be used for prolonging the service life, reducing the replacement frequency and cost and improving the working efficiency.

Description

technical field [0001] The invention relates to the field of extruders, in particular to an extruder screw barrel. Background technique [0002] Extrusion molding process is a molding processing method with the most varieties, the most changes, high productivity, strong adaptability, wide application and the largest proportion of output in the field of polymer processing. Extrusion molding is to make the polymer melt (or viscous fluid) pass through a die of a certain shape under the extrusion of the extruder screw, and the product is a continuous profile with a constant cross-sectional shape. [0003] Existing extruders generally use twin-screw extruders with twin-screw barrel design to strengthen the plasticizing function and ensure stable extrusion. However, the heat generated by the extrusion wear of the material and the barrel will cause the barrel to deform, and The inner wall of the machine barrel is easy to wear, resulting in short service life, high replacement freq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/66
CPCB29C48/682B29C48/6801B29C48/6803B29C48/685
Inventor 周喜峰周皓黄印
Owner JIANGSU HONGYUAN NEW MATERIAL TECH
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