(19)
(11) EP 2 690 044 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.12.2015 Bulletin 2015/51

(43) Date of publication A2:
29.01.2014 Bulletin 2014/05

(21) Application number: 13178228.6

(22) Date of filing: 26.07.2013
(51) International Patent Classification (IPC): 
B65H 63/00(2006.01)
B65H 63/04(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

(30) Priority: 27.07.2012 JP 2012167242

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

(72) Inventors:
  • MINAMINO, Katsushi
    Kyoto, 612-8686 (JP)
  • NAKADE, Kazuhiko
    Kyoto, 612-8686 (JP)

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

   


(54) Yarn winding device


(57) A yarn winding unit (1) includes a yarn supplying section (2) that supplies a yarn (Y), a winding section (12) that winds the yarn (Y) into a package (2), the winding section including a winding drum that makes contact with an outer peripheral surface of the package (P) and rotates, a yarn running speed detecting section (10) that detects a speed of the yarn (Y) running between the yarn supplying section (2) and the winding section (12), and an error detecting section (14a) that calculates a speed ratio by dividing the yarn running speed by a circumferential speed of the winding drum (16), and detects presence/absence of a winding error based on the speed ratio.







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Search report