EP 0412256 B1 19930526 - METHOD AND ARRANGEMENT FOR AUTOMATICALLY PIECING
Title (en)
METHOD AND ARRANGEMENT FOR AUTOMATICALLY PIECING
Publication
Application
Priority
- DE 3926071 A 19890807
- DE 4017064 A 19900526
Abstract (en)
[origin: EP0412256A1] In a method for the automatic piecing of a fibrous web to form a sliver, for example in a card, the fibrous web delivered by a roller device is collected at least partially by a web transport device and transported further, in the starting phase the unusable fibrous web is fed to a conveyor device and the unusable fibrous web coming out of the conveyor device is removed, in the piecing phase the usable fibrous web is surrounded by a funnel and shaped to form a sliver, and the sliver coming out of the funnel is fed to a pair of draw-off rollers. To make automatic piecing possible in a reliable and fault-free way, in the starting phase the fibrous web is conveyed at a uniform speed, in the piecing phase the fibrous web is converted into a sliver by being contracted in a collecting funnel, the sliver is severed above the conveyor device, and the sliver end coming out of the collecting funnel is introduced into the nip of the draw-off rollers as a result of the displacement of the collecting funnel and/or of the draw-off rollers. <IMAGE>
IPC 1-7
IPC 8 full level
B65H 54/76 (2006.01); D01G 15/46 (2006.01); D01G 15/02 (2006.01); D01G 15/58 (2006.01); D01G 15/64 (2006.01); D01G 23/00 (2006.01)
CPC (source: EP US)
B65H 54/76 (2013.01 - EP US); D01G 15/46 (2013.01 - EP US); D01G 15/58 (2013.01 - EP US); B65H 2701/31 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0412256 A1 19910213; EP 0412256 B1 19930526; BE 1003524 A4 19920414; BR 9003850 A 19910903; CA 2022951 A1 19910208; CA 2022951 C 19941018; CH 682922 A5 19931215; DE 4017064 A1 19910214; DE 59001543 D1 19930701; ES 2025474 A6 19920316; FR 2650603 A1 19910208; FR 2650603 B1 19930806; GB 2235472 A 19910306; GB 2235472 B 19930616; GB 9017199 D0 19900919; IT 1243699 B 19940621; IT 9021232 A0 19900807; IT 9021232 A1 19920207; JP 2846934 B2 19990113; JP H0369619 A 19910326; RU 2062310 C1 19960620; US 5095587 A 19920317
DOCDB simple family (application)
EP 90110858 A 19900608; BE 9000758 A 19900730; BR 9003850 A 19900807; CA 2022951 A 19900807; CH 247390 A 19900726; DE 4017064 A 19900526; DE 59001543 T 19900608; ES 9002136 A 19900807; FR 9009780 A 19900731; GB 9017199 A 19900806; IT 2123290 A 19900807; JP 20770090 A 19900807; SU 4830747 A 19900806; US 56113790 A 19900801