(19)
(11) EP 1 820 764 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.06.2009 Bulletin 2009/26

(43) Date of publication A2:
22.08.2007 Bulletin 2007/34

(21) Application number: 07102088.7

(22) Date of filing: 09.02.2007
(51) International Patent Classification (IPC): 
B65H 59/22(2006.01)
 B65H 63/04(2006.01)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 16.02.2006 IT MI20060288

(71) Applicant: Savio Macchine Tessili S.p.A.
33170 Pordenone (IT)

(72) Inventors:
  • Badiali, Roberto
    33170, PORDENONE (IT)
  • Colomberotto, Giorgio
    33077, SACILE (Pordenone) (IT)
  • Claut, Demetrio
    33086, SAN LEONARDO VALCELLINA (Pordenon (IT)

(74) Representative: Fusina, Gerolamo et al
Ing. Barzanò & Zanardo Milano S.p.A, Via Borgonuovo, 10
20121 Milano
20121 Milano (IT)

   


(54) Device and procedure for the regulation of the contact pressure of a winding bobbin


(57) Device and process for the regulation of thread winding onto a bobbin (10) by applying a desired contact pressure Pc of the operating bobbin, providing the bobbin-holder arm (11) with a counterweighing counterthrust Pp, on the basis of a pre-established trend of the value of Pc in relation to the advance length of the bobbin (10), indicating the weight of the bobbin (10) in relation to the ratio between the length reached and indicating the rising α angle of the bobbin-holder arm (11), calculating the weight component due to the bobbin (10) and said arm (11) and applying a counterthrust Pp equal to the difference between said component and the pre-established value of the contact pressure Pc referred to the length reached.







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