(19)
(11) EP 1 369 371 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
26.05.2004 Bulletin 2004/22

(43) Date of publication A2:
10.12.2003 Bulletin 2003/50

(21) Application number: 03011437.5

(22) Date of filing: 20.05.2003
(51) International Patent Classification (IPC)7: B65H 63/00, B65H 54/74, B65H 54/22
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
Designated Extension States:
AL LT LV MK

(30) Priority: 03.06.2002 JP 2002161109

(71) Applicant: Murata Kikai Kabushiki Kaisha
Minami-ku, Kyoto-shi, Kyoto 601 (JP)

(72) Inventor:
  • Kawamoto, Kenji
    Kameoka-shi, Kyoto (JP)

(74) Representative: Liedl, Christine et al
c/o Hansmann & Vogeser, Albert-Rosshaupter-Strasse 65
81369 München
81369 München (DE)

   


(54) Power failure handling system for automatic winder


(57) The present invention relates to a power failure system for an automatic winder having a large number of yarn winding units each driven by an individual spindle drive. If a power failure occurs in the automatic winder each yarn winding unit is to be stopped to avoid the creation of scrambled packages. If a power failure detecting section 29 detects a power failure, a motor 21 undergoes slowdown stop control. A regenerative power generating section 30 supplies a unit control section 27 with regenerative power resulting from this slowdown stop control. The unit control section 27 uses the supplied regenerative power to activate a lift-up mechanism 2a to separate a winding package P from a winding drum 3 (Fig. 1).






Search report