(19)
(11) EP 2 388 225 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
14.11.2012 Bulletin 2012/46

(43) Date of publication A2:
23.11.2011 Bulletin 2011/47

(21) Application number: 11161047.3

(22) Date of filing: 04.04.2011
(51) International Patent Classification (IPC): 
B65H 57/18(2006.01)
B65H 63/00(2006.01)
 B65H 49/06(2006.01)
B65H 67/02(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: 17.05.2010 JP 2010113582

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

(72) Inventors:
  • Tanigawa, Yasunobu
    Kyoto Kyoto 612-8686 (JP)
  • Kawamoto, Kenji
    Kyoto Kyoto 612-8686 (JP)

(74) Representative: Beck, Alexander 
Hansmann & Vogeser Patent- und Rechtsanwälte Maximilianstraße 4b
82319 Starnberg
82319 Starnberg (DE)

   


(54) Winding unit


(57) The invention provides a winding unit (4) capable of performing a satisfactory winding operation by accurately aligning a position of an unwinding side end of a yarn feeding bobbin (21) with respect to a target position regardless of a diameter and/or a shape of the yarn feeding bobbin (21). A winder unit (winding unit) (4) includes a bobbin holding portion (110), a chase portion detection sensor (the yarn feeding bobbin detection unit) (74), a drive portion (200), and a stepping motor controller (102). The bobbin holding portion (110) holds the yarn feeding bobbin (21). The chase portion detection sensor (74) detects an unwinding side end of the yarn feeding bobbin (21) held by the bobbin holding portion (110). The drive portion (200) drives the bobbin holding portion (110) to adjust the position of the unwinding side end of the yarn feeding bobbin (21). The stepping motor controller (102) controls the drive portion (200) to align the position of the unwinding side end of the yarn feeding bobbin (21) with the target position set in advance based on a detection result of the chase portion detection sensor (74).







Search report









Search report