Title:
COUNTER-ROTATING MULTI-SHAFT EXTRUDER
Document Type and Number:
WIPO Patent Application WO/2016/175462
Kind Code:
A1
Abstract:
The present invention relates to a counter-rotating multi-shaft extruder having multiple screws, which rotate in opposite directions from each other, so as to continuously process polymer materials and additives through distribution, dispersion, mixing and deaeration steps, thereby improving kneading performance and reducing screw wear over those of a conventional extruder, and the extruder comprises: a central screw rotating in one direction at the center of the inside of a cylinder; and multiple small screws engaging with the central screw so as to rotate in the direction opposite to the rotational direction of the central screw, thereby dispersing and mixing raw materials, by a rolling operation, in a gap between an oval curved part of a kneading block of the small screw and a semicircular convex part of a kneading block of the central screw.
Inventors:
LEE CHANG-SU (KR)
Application Number:
PCT/KR2016/003248
Publication Date:
November 03, 2016
Filing Date:
March 30, 2016
Export Citation:
Assignee:
CHANG YOUNG MACHINERY CO LTD (KR)
International Classes:
B29B7/20; B29B7/48; B29C48/43; B29C48/515
Foreign References:
KR960000541Y1 | 1996-01-17 | |||
JP2008546575A | 2008-12-25 | |||
KR100190725B1 | 1999-06-01 | |||
KR101298068B1 | 2013-08-20 | |||
JP2013203816A | 2013-10-07 |
Attorney, Agent or Firm:
BAE, YONG-CHEOL (KR)
배용철 (KR)
배용철 (KR)
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