EP 0223926 B1 19890531 - METHOD AND DEVICE FOR PIECING YARN IN A SPINNING UNIT
Title (en)
METHOD AND DEVICE FOR PIECING YARN IN A SPINNING UNIT
Publication
Application
Priority
DE 3541220 A 19851121
Abstract (en)
[origin: WO8703309A1] In a spinning device which comprises a twisting element (3) provided with an injection nozzle (30) and a twisting nozzle (31) separated by a slot (33) in contact with the atmosphere during the spinning operation, the yarn to be rethreaded is threaded through a twisting element (3) placed in threading position. Threading is achieved with the help of a negative pressure applied to the side of the twisting element (3) which forms its inlet side (301) during spinning. The slot (33) is sealed to the atmosphere during threading of the arn, and then released, at the latest at the beginning of the discharge of the spun yarn. A sealing device (61) is disclosed to implement the process which seals the slot (33) located between the injection nozzle (30) and the twisting nozzle (31) during the threading phase.
IPC 1-7
IPC 8 full level
D01H 4/48 (2006.01); D01H 15/00 (2006.01)
CPC (source: EP US)
D01H 15/002 (2013.01 - EP US)
Designated contracting state (EPC)
CH DE GB IT LI
DOCDB simple family (publication)
EP 0223926 A1 19870603; EP 0223926 B1 19890531; BR 8606928 A 19871103; CS 275932 B6 19920318; CS 8608472 A2 19910716; DE 3541220 C1 19870619; DE 3663694 D1 19890706; IN 171461 B 19921024; JP H01501010 A 19890406; SU 1672931 A3 19910823; US 4769981 A 19880913; WO 8703309 A1 19870604
DOCDB simple family (application)
EP 86111039 A 19860809; BR 8606928 A 19860902; CS 847286 A 19861121; DE 3541220 A 19851121; DE 3663694 T 19860809; DE 8600351 W 19860902; IN 217MA1988 A 19880405; JP 50461586 A 19860902; SU 4355659 A 19880521; US 8263187 A 19870826