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Extruder

An extruder and barrel technology, which is applied in the field of polymer material processing machinery, can solve the problems of unfavorable gas discharge and the phenomenon of glue can not be completely solved, so as to improve production efficiency and profit, easy to operate and use, and reasonable in structure. Effect

Active Publication Date: 2013-04-10
ZHEJIANG DONGBIN RUBBER MACHINERY SCREW
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the diameter of the pumping hole of this structure is small, and the position of the pumping hole is offset at the edge of the low-pressure area of ​​the pit, which is not conducive to the discharge of gas, and it cannot completely solve the problem of glue leakage.

Method used

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0017] As shown in the figure, an extruder includes a barrel 1, a screw 2 and a transmission device 7. The transmission device 7 is linked with the output shaft of the motor 6 to drive the screw 2 to rotate. The feed port and the discharge port, the screw 2 is rotatably arranged in the inner cavity of the barrel 1, and is sequentially divided into a feed section A, a melting section B, a plasticizing section C and an extrusion section D; the machine The cylinder 1 is vertically provided with an air extraction port 11, the air extraction port 11 is a through hole with a small lower aperture and a large upper aperture, and the vertical center axis 8 of the air extraction port 11 is located at the center of the longitudinal axis 9 of the machine barrel 1. On one side; the inner wall of the barrel 1 is provided with a wear-resistant layer 3, and t...

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Abstract

The invention discloses an extruder which comprises an extruder barrel (1), a threaded rod (2) and a transmission device (7), wherein the transmission device (7) is in linkage with an output shaft of a motor (6); a material inlet and a material outlet are formed in the extruder barrel (1); and the threaded rod (2) is rotationally arranged in an inner cavity of the extruder barrel (1) and divided into a material inlet section (A), a fusion section (B), a plastification section (C) and an extrusion section (D). The extruder is characterized in that an extraction opening (11) is formed vertically in the extruder barrel (1); the extraction opening (11) is a through hole which has a small diameter at the lower part and a large diameter at the upper part; and a sunk part (31) capable of enlarging the inner cavity of the extruder barrel is arranged on an internal wall on the left side of the extraction opening (11) of the extruder barrel (1). According to the extruder, the extraction opening is rational in design; the problem of glue outflow due to vacuumizing in processes of extruding dehydration and expansion drying is solved effectively; and the extruder is very convenient to operate and use; the quality and grade of a product is improved and raised; and the production efficiency and the profit are improved and increased largely.

Description

technical field [0001] The invention relates to the technical field of polymer material processing machinery, in particular to an extruder for rubber extrusion. Background technique [0002] The extruder is used to fully mix and extrude a variety of granular raw materials and output them, and is mainly used in the field of plastic or rubber manufacturing. In the rubber manufacturing process, especially in the post-processing process, it is necessary to perform extrusion dehydration and expansion drying processes. It is necessary to pump out hollows during the extrusion process to extract water and air bubbles. If these water and air bubbles are not discharged, let them stay in the rubber. It will have a serious adverse effect on the final rubber product, so the current rubber extruder will be equipped with an exhaust device. However, during the mixing and plasticizing process of the extruder, the pressure in the wear-resistant layer is relatively high, and the exhaust devic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/76B29C47/66B29C47/60B29C48/64B29C48/76
CPCB29C48/53B29C48/64
Inventor 袁能军
Owner ZHEJIANG DONGBIN RUBBER MACHINERY SCREW
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