(19)
(11) EP 2 671 830 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
10.09.2014 Bulletin 2014/37

(43) Date of publication A2:
11.12.2013 Bulletin 2013/50

(21) Application number: 13170828.1

(22) Date of filing: 06.06.2013
(51) International Patent Classification (IPC): 
B65H 54/22(2006.01)
B65H 67/08(2006.01)
B65H 63/00(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: 07.06.2012 JP 2012130262

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

(72) Inventors:
  • Imamura, Hisakatsu
    Kyoto, 612-8686 (JP)
  • Kawamoto, Kenji
    Kyoto, 612-8686 (JP)

(74) Representative: HOFFMANN EITLE 
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE)

   


(54) Textile machine, standby position determining method of driven member of winding unit, and winding unit


(57) A stepping motor moves an upper-yarn catching member (30) by an amount corresponding to a specified number of pulses. A magnet sensor detects an origin position, which is a reference position, of the upper-yarn catching member (30). A number-of-pulse counting section obtains an actual measurement value, which is the number of pulses necessary for moving the upper-yarn catching member (30) from a target position to the origin position. A drive control section determines a standby position of the upper-yarn catching member (30) in view of the actual measurement number counted by the number-of-pulse counting section, a theoretical value, and the origin position.







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Search report