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Patent Searching and Data


Title:
RESIN EXTRUDER, ROTOR-TYPE SCREW, AND METHOD FOR PRODUCING RESIN
Document Type and Number:
WIPO Patent Application WO/2021/065192
Kind Code:
A1
Abstract:
Provided is a resin extruder which can efficiently improve the performance of kneading a resin material. A resin extruder (1) according to one embodiment comprises: a cylinder (20); and a rotor-type screw (33) that is disposed inside the cylinder (20) and kneads a resin material (51). In the rotor-type screw (33), a peak section (33b) of a flight (33a) is formed such that, in a cross section perpendicular to the axial direction, a gap between the peak section (33b) and the inner surface of the cylinder (20) changes going from a point in the front in the rotation direction to a point in the rear in the rotation direction.

Inventors:
ISHIKAWA MAKOTO (JP)
YATA KYOUHEI (JP)
SHIMIZU YOHEI (JP)
KURIHARA MASAO (JP)
Application Number:
PCT/JP2020/029931
Publication Date:
April 08, 2021
Filing Date:
August 05, 2020
Export Citation:
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Assignee:
JAPAN STEEL WORKS LTD (JP)
International Classes:
B29B7/48; B29C48/415; B29C48/60
Domestic Patent References:
WO1994022649A11994-10-13
Foreign References:
JPH0733611U1995-06-20
JPH0232812A1990-02-02
Attorney, Agent or Firm:
IEIRI Takeshi (JP)
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