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1. WO2021002119 - ABNORMALITY DETECTION DEVICE FOR EXTRUSION MOLDER

Publication Number WO/2021/002119
Publication Date 07.01.2021
International Application No. PCT/JP2020/020591
International Filing Date 25.05.2020
IPC
B29C 48/57 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
50Details of extruders
505Screws
57provided with kneading disc-like elements, e.g. with oval-shaped elements
B29C 48/68 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
50Details of extruders
68Barrels or cylinders
B29C 48/92 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
92Measuring, controlling or regulating
B29C 48/96 2019.01
BPERFORMING OPERATIONS; TRANSPORTING
29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
48Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
25Component parts, details or accessories; Auxiliary operations
96Safety devices
Applicants
  • 芝浦機械株式会社 SHIBAURA MACHINE CO., LTD. [JP]/[JP]
  • 国立大学法人金沢大学 NATIONAL UNIVERSITY CORPORATION KANAZAWA UNIVERSITY [JP]/[JP]
Inventors
  • 尾原 正俊 OHARA, Masatoshi
  • 瀧 健太郎 TAKI, Kentaro
  • 木田 司 KIDA, Tsukasa
Agents
  • 特許業務法人酒井国際特許事務所 SAKAI INTERNATIONAL PATENT OFFICE
Priority Data
2019-12341402.07.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) ABNORMALITY DETECTION DEVICE FOR EXTRUSION MOLDER
(FR) DISPOSITIF DE DÉTECTION D'ANOMALIE POUR MOULE D'EXTRUSION
(JA) 押出成形機の異常検出装置
Abstract
(EN)
According to the present invention, a signal acquisition unit (51a) (acquisition unit) of an abnormality detection device (50a) of a dual-axis extrusion molder (30) (extrusion molder) acquires an AE output (M(t)) of an AE sensor (20) installed on the surface of a housing (32) of the dual-axis extrusion molder (30) when the dual-axis extrusion molder (30) (extrusion molder) is in an operating state which melts and kneads an input resin raw material. In addition, a determination unit (53a) determines the occurrence of an abnormality in the dual-axis extrusion molder (30) on the basis of the relationship between the AE output (M(t)), a first threshold value (Th1), and a second threshold value (Th2).
(FR)
Selon la présente invention, une unité d'acquisition de signal (51a) (unité d'acquisition) d'un dispositif de détection d'anomalie (50a) d'un moule d'extrusion à deux axes (30) (moule d'extrusion) acquiert une sortie AE (M(t)) d'un capteur AE (20) installé sur la surface d'un logement (32) du moule d'extrusion à deux axes (30) lorsque le moule d'extrusion à deux axes (30) (moule d'extrusion) est dans un état de fonctionnement qui fond et pétrit une matière première de résine d'entrée. En outre, une unité de détermination (53a) détermine l'apparition d'une anomalie dans le moule d'extrusion à deux axes (30) sur la base de la relation entre la sortie AE (M(t)), une première valeur seuil (Th1) et une seconde valeur seuil (Th2).
(JA)
二軸押出成形機(30)(押出成形機)の異常検出装置(50a)の信号取得部(51a)(取得部)は、投入された樹脂原料を溶融して混練する二軸押出成形機(30)(押出成形機)が稼働状態にあるときに、当該二軸押出成形機(30)の筐体(32)の表面に設置したAEセンサ(20)のAE出力(M(t))を取得する。そして、判定部(53a)は、AE出力(M(t))と第1の閾値(Th1)及び第2の閾値(Th2)との関係に基づいて、二軸押出成形機(30)に異常が発生しているかを判定する。
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