(19)
(11) EP 1 057 765 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
30.05.2001 Bulletin 2001/22

(43) Date of publication A2:
06.12.2000 Bulletin 2000/49

(21) Application number: 00201890.1

(22) Date of filing: 29.05.2000
(51) International Patent Classification (IPC)7: B65H 54/28, H02P 21/00, H02P 6/00
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 31.05.1999 IT MI991213

(71) Applicant: SP.EL. S.r.L.
Trezzano sul Naviglio (Milano) (IT)

(72) Inventors:
  • Franzolini, Luciano
    Milano (IT)
  • D'Amicis, Stefano
    Milano (IT)

(74) Representative: Raimondi, Alfredo, Dott. Ing. Prof. 
Dott. Ing. Prof. Alfredo Raimondi S.r.l. Piazzale Cadorna 15
20123 Milano
20123 Milano (IT)

   


(54) Method and apparatus for controlling the winding of threads and the like onto rotating supports such as reels of yarn and the like


(57) Apparatus for controlling the alternating movement of a thread guide (6a) which is actuated by an electric motor (4) via means (5a,5b,6) supporting the said thread guide and is intended to wind a thread (7) onto rotating supports (1), comprising
  • an angular transducer (110) for detecting the angular position of the rotor (4a) of the motor (4);
  • a device (120) for vectorial control of the currents supplied to the motor (4);
  • a circuit (130) for controlling the speed of rotation of the rotor (4a), which is connected to the angular transducer (110) and to the vector control circuit (120).






Search report