Yarn monitoring device and yarn winding machine

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(11)

EP 2 687 469 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	22.04.2015 Bulletin 2015/17

(43)	Date of publication A2:
	22.01.2014 Bulletin 2014/04

(21)	Application number: 13173588.8

(22)	Date of filing: 25.06.2013

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International Patent Classification (IPC):

B65H 54/28^(2006.01)
B65H 57/22^(2006.01)
B65H 63/06^(2006.01)

B65H 54/71^(2006.01)
B65H 59/40^(2006.01)
B65H 54/38^(2006.01)

(84)	Designated Contracting States:
	AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
	Designated Extension States:
	BA ME

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Priority:

18.07.2012 JP 2012160031

(71)	Applicant: Murata Machinery, Ltd.
	Kyoto-shi, Kyoto 601-8326 (JP)

(72)	Inventors:
	Fukuhara, Shuichi Kyoto, 612-8686 (JP) Sone, Yoshifuto Kyoto, 612-8686 (JP) Nakade, Kazuhiko Kyoto, 612-8686 (JP) kawamoto, Kenji Kyoto, 612-8686 (JP)

(74)	Representative: Zimmermann, Tankred Klaus
	Schoppe, Zimmermann, Stöckeler Zinkler, Schenk & Partner mbB Patentanwälte Radlkoferstrasse 2 81373 München 81373 München (DE)

(54)	Yarn monitoring device and yarn winding machine

(57) A yarn monitoring device (34) includes a yarn irregularity sensor (37) and a yarn monitoring controller (81). The yarn irregularity sensor (37) monitors a yarn (21) that is being wound by an automatic winder (1). The yarn monitoring controller (81) performs a determination based on information acquired from the yarn irregularity sensor (37) and information pertaining to, for example, a traverse position of the yarn (21) acquired from the yarn detection sensor (71) of the automatic winder (1), and outputs a cutter operation signal based on the determination to operate a cutter (39). Furthermore, the yarn monitoring device (34) includes a yarn detection receiving section (83) to receive a yarn detection signal output by the yarn detection sensor (71).

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