(19)
(11) EP 1 564 318 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.05.2006 Bulletin 2006/20

(43) Date of publication A2:
17.08.2005 Bulletin 2005/33

(21) Application number: 04466020.7

(22) Date of filing: 29.07.2004
(51) International Patent Classification (IPC): 
D01H 4/32(2006.01)
 D02G 3/34(2006.01)
(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: 16.02.2004 CZ 20040240

(71) Applicant: Saurer Czech a.s
549 41 Cerveny Kostelec (CZ)

(72) Inventors:
  • Burysek, Frantisek
    562 01 Usti nad Orlici (CZ)
  • Smisek, Ales
    562 06 Usti nad Orlici (CZ)
  • Storek, Jiri
    562 01 Usti nad Orlici (CZ)
  • Krmas, Antonin
    549 32 Velke Porici (CZ)

(74) Representative: Holasova, Hana 
A. Holas & Partner, Krizova 4
603 00 Brno
603 00 Brno (CZ)

   


(54) Method of sliver feeding in production of fancy yarn and spinning unit for performing it


(57) The method of sliver feeding from staple fibre material in production of fancy yarn on spindle-less rotor machines with sliver feeding using the feed roller to the stripping roller, which combs out the individual fibres from the sliver and then the spinning rotor spins them into yarn, characterised by the fact that in case of each and any change of the yarn spinning profile there is - on a short term basis in the time interval of 0,01 - 0,9 second - suddenly increased in at least 10% above the operation speed of sliver feeding, while the section of the sliver fed in accelerated speed is separated from sections spun by operation speed in at least one location - at the beginning or in the end by reversing the sliver feeding on the basis of speed exceeding the operation speed of feeding.
The spinning unit of the spindle-less spinner for performing the method, including an independently driven feed roller, has got a driving unit (11) of the feed roller (3) drive connected with the sensor (10) of the yarn (13) break and a programmable control unit (12).







Search report