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1.发明公开公开(公告)号：US20240239018A1
公开(公告)日：2024-07-18
申请号：US18557093
申请日：2022-04-25
发明人： Masatoshi OHARA , Kentaro TAKI
CPC分类号： B29B7/72 , B29B7/48 , G01N29/14 , G01N29/4427 , G01N29/4472 , G01N29/46 , G01N2291/0231
摘要： A kneading state detection device includes an acquisition unit that, when an extrusion molding machine that kneads a raw material or kneads a raw material and an additive is in operation, acquires an output of an AE sensor installed on a housing of the extrusion molding machine, and a determination unit that determines a kneading state of the raw material, based on a comparison between a change in intensity of the output of the AE sensor acquired by the acquisition unit and a threshold.
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公开(公告)号：US20220242031A1
公开(公告)日：2022-08-04
申请号：US17618946
申请日：2020-05-25
发明人： Masatoshi OHARA , Kentaro TAKI , Tsukasa KIDA
摘要： A signal acquisition unit of an abnormality detection device for a twin-screw extrusion molding machine, when the twin-screw extrusion molding machine that melts and kneads a fed resin raw material is in operation, acquires an AE output of an AE sensor installed on a surface of a housing of the twin-screw extrusion molding machine. A determination unit determines whether an abnormality occurs in the twin-screw extrusion molding machine, based on a relationship between the AE output and a first threshold and a second threshold.
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