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Title:
KNEADING STATE DETECTION DEVICE AND KNEADING STATE DETECTION METHOD FOR EXTRUDER
Document Type and Number:
WIPO Patent Application WO/2022/244599
Kind Code:
A1
Abstract:
A kneading state detection device (50) comprises: an AE wave acquisition unit (71) (acquisition unit) that acquires, when a twin-screw extruder (30) (extruder) for kneading a raw material or kneading a raw material with an additive is in operation, an AE output (M(t)) of an AE sensor (20) installed in a housing (32) of the twin-screw extruder (30); and a kneading state determination unit (72) (determination unit) that determines the kneading state of the raw material on the basis of a comparison between a change in the intensity of the AE output (M(t)) of the AE sensor (20) acquired by the AE wave acquisition unit (71) and a threshold value (Th).

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Inventors:
OHARA MASATOSHI (JP)
TAKI KENTARO (JP)
Application Number:
PCT/JP2022/018717
Publication Date:
November 24, 2022
Filing Date:
April 25, 2022
Export Citation:
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Assignee:
SHIBAURA MACHINE CO LTD (JP)
UNIV NAT CORP KANAZAWA (JP)
International Classes:
G01N29/14; B29B7/22; B29B7/58; B29C48/40; B29C48/92
Domestic Patent References:
WO2021002119A12021-01-07
Foreign References:
JPH08216230A1996-08-27
JPH07285125A1995-10-31
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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