EP 2947187 B1 20190807 - FALSE TWIST DEVICE FOR AN OPEN-END SPINNING DEVICE
Title (en)
FALSE TWIST DEVICE FOR AN OPEN-END SPINNING DEVICE
Title (de)
FALSCHDRALLVORRICHTUNG FÜR EINE OFFENENDSPINNVORRICHTUNG
Title (fr)
DISPOSITIF DE FAUSSE TORSION POUR UN DISPOSITIF DE FILAGE A BOUT LIBRE
Publication
Application
Priority
DE 102014107181 A 20140521
Abstract (en)
[origin: CN105088434A] A false twist device (17) for an open-end spinning device (1) to introduce a false twist in a yarn (7) has a largely tubular carcass (20) and several false twist edges (19) arranged behind one another in yarn draw-off direction (G) and inclined by an angle ([alpha]) in the carcass (20) with regard to the yarn draw-off direction (G). The several false twist edges (19) protrude in such a way into the interior of the tubular carcass (20) that the yarn (7) experiences a deflection in each one of the false twist edges (19). Additionally, the several false twist edges (19) are arranged offset in such a way in the carcass (20) in circumferential direction that the yarn (7) simultaneously experiences a spatial deflection compared to its regular yarn draw-off direction (G) through the successive deflections on the several false twist edges (19). An open-end spinning device (1) of a rotor spinning machine (2) with a yarn draw-off nozzle (16) has a false twist device (17) arranged downstream from the yarn draw-off nozzle (16) in yarn draw-off direction (G). In a method for introducing a false twist in a yarn (7) generated in an open-end spinning device (1) of a rotor spinning machine (2), the yarn (7) is drawn off through a yarn draw-off nozzle (16) and pulled through false twist edges (19) in a false twist device (17) arranged downstream from the yarn draw-off nozzle (16), as a result of which the yarn (7) is imparted a false twist. The yarn (7) is exposed to a spatial deflection compared to its regular yarn draw-off direction (G) through the false twist edges (19), in which case an additional false twist is imparted to the yarn (7).
IPC 8 full level
CPC (source: EP US)
Citation (examination)
- DE 19718768 A1 19981112 - RIETER INGOLSTADT SPINNEREI [DE]
- DE 3723504 A1 19890126 - SCHLAFHORST & CO W [DE]
- WO 2013117495 A1 20130815 - RIETER AG MASCHF [CH]
- GB 2017167 A 19791003 - ALSACIENNE CONSTR MECA
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2947187 A1 20151125; EP 2947187 B1 20190807; CN 105088434 A 20151125; CN 105088434 B 20190823; DE 102014107181 A1 20151126; TW 201600664 A 20160101; TW I612191 B 20180121; US 2015337463 A1 20151126; US 9580841 B2 20170228
DOCDB simple family (application)
EP 15168098 A 20150519; CN 201510258612 A 20150520; DE 102014107181 A 20140521; TW 104116288 A 20150521; US 201514718728 A 20150521