(19)
(11) EP 1 500 619 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
22.06.2005 Bulletin 2005/25

(43) Date of publication A2:
26.01.2005 Bulletin 2005/04

(21) Application number: 04016735.5

(22) Date of filing: 15.07.2004
(51) International Patent Classification (IPC)7: B65H 63/08
(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 PL PT RO SE SI SK TR
Designated Extension States:
AL HR LT LV MK

(30) Priority: 22.07.2003 JP 2003277233
09.10.2003 JP 2003351010

(71) Applicant: MURATA KIKAI KABUSHIKI KAISHA
Minami-ku Kyoto-shi Kyoto 601 (JP)

(72) Inventors:
  • Kubota, Norio
    Kyoto-shi Kyoto (JP)
  • Miyake, Yasuo
    Kyoto-shi Kyoto (JP)

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

   


(54) Method of predicting weight of package, method of manufacturing package, and yarn winder


(57) The present invention improve productivity by quickly completing corrections of the amount of yarn rewound which corrections are required to obtain a desired package. The total number of package rotations are acquired for all winding units 1 when the total number of rotations of the winding drum 7 continuously counted from the start of winding reaches a value corresponding to a predetermined package weight during rewinding. Then, on the basis of the total numbers of package rotations, the package weight obtained in each winding unit 1 after the completion of the rewinding is predicted. Then, the amount of yarn rewound is corrected so as to reduce a variation in package weight which may occur during the rewinding process and which may remain after the completion of the rewinding.






Search report