Global Patent Index - EP 0770717 A2

EP 0770717 A2 19970502 - Method and device for pneumatically picking up and supplying a sliver end on an open-end spinning device

Title (en)

Method and device for pneumatically picking up and supplying a sliver end on an open-end spinning device

Title (de)

Verfahren und Vorrichtung zum pneumatischen Aufnehmen und Zuführen eines Faserbandendes an eine OE-Spinnvorrichtung

Title (fr)

Méthode et dispositif pour recevoir et alimenter à actionnement pneumatique un bout de mèche sur une machine à filer à bout libre

Publication

EP 0770717 A2 19970502 (DE)

Application

EP 96119796 A 19910517

Priority

  • DE 4015938 A 19900518
  • DE 4035439 A 19901108
  • EP 95120117 A 19910517
  • EP 91909136 A 19910517

Abstract (en)

To lay a sliver automatically at the feed of a textile machine, eg drawing unit, spinner, knitter, the end of the sliver is brought to a defined holding position to be taken as the start of the sliver for transfer to the feed mechanism. The end of the sliver is first brought to a ready position before moving to the holding position. The ready or holding positions can be at the supply can in the centre or at its circumference. The sliver end in the can or extending downwards has a min length of 100 mm and a max length of 200 mm. When the can is being filled, the last section of sliver is taken as the start and placed in a ready position so that it is correctly placed when the can is moved into the holding position for the required feed unit. The sliver movement into the can, on filling, is ended after the can has been moved clear of the filling station to be laid at the trailing side of the can to be secured in place during the can movement to the textile machine. The can is not allowed to rotate until it is at the holding position. At the ready and/or holding positions, the start of the sliver is laid on a defined path in a preset length to be clamped near the start end while the sliver has axial movement at the trailing end of the path. The sliver is positioned above the textile machine feed from the can in the holding position, and clear of any other slivers. The start of the sliver is prepd and is given a partic starting length while any section which varies from nominal thickness is severed, or the length is achieved by drawing the sliver apart.

Abstract (de)

Die Erfindung betrifft ein Verfahren zum pneumatischen Aufnehmen und Zuführen eines in einer Kanne abgelegten Faserbandes (4) an einem zur Aufnahme durch einen Bandzubringer (55) bereitgelegten Faserbandende an einer OE-Spinnvorrichtung und eine Vorrichtung zum Einführen dieses Faserbandendes in einen Klemmbereich zwischen einer Lieferwalze (20) und einer Speisemulde (21) einer Speisevorrichtung (2). Der Erfindung liegt zugrunde, daß das Faserbandende in der Kannenmitte oder über den Kannenrand hängend bereitgelegt wird und pneumatisch durch einen Bandzubringer (55) ergriffen und an die Speisevorrichtung (2) übergeben wird. Die Übergabe erfolgt derart, daß der Saugluftstrom in einen Druckluftstrom umgeschalten wird und dadurch das Faserband (4) aus dem Bandzubringer (55) entnommen wird und das Faserbandende bis in den Klemmbereich der Speisevorrichtung (2) eingeblasen wird. <IMAGE>

IPC 1-7

D01H 9/00; D01H 4/48

IPC 8 full level

D01H 1/11 (2006.01); B65H 54/76 (2006.01); B65H 57/04 (2006.01); B65H 61/00 (2006.01); B65H 67/02 (2006.01); B65H 67/04 (2006.01); B65H 67/06 (2006.01); D01H 1/115 (2006.01); D01H 4/30 (2006.01); D01H 4/48 (2006.01); D01H 4/50 (2006.01); D01H 4/52 (2006.01); D01H 5/72 (2006.01); D01H 9/00 (2006.01); D01H 9/18 (2006.01); D01H 13/04 (2006.01); D01H 13/24 (2006.01); D01H 13/30 (2006.01); D01H 15/00 (2006.01)

CPC (source: EP US)

B65H 67/0428 (2013.01 - EP US); D01H 9/008 (2013.01 - EP US); D01H 9/185 (2013.01 - EP US); D01H 15/00 (2013.01 - EP US); B65H 2701/31 (2013.01 - EP US)

Citation (applicant)

Designated contracting state (EPC)

DE GB IT

DOCDB simple family (publication)

WO 9118135 A1 19911128; BR 9105752 A 19920519; CS 146291 A3 19920219; CZ 146091 A3 19931215; DE 59108036 D1 19960829; DE 59108961 D1 19980507; DE 59109111 D1 19990422; DE 59109242 D1 20021107; DE 59109248 D1 20030424; EP 0528884 A1 19930303; EP 0528884 B1 19960724; EP 0528907 A1 19930303; EP 0528907 B1 19990317; EP 0528907 B2 20020814; EP 0668380 A2 19950823; EP 0668380 A3 19951102; EP 0668380 B1 19980401; EP 0709501 A2 19960501; EP 0709501 A3 19960731; EP 0709501 B1 20021002; EP 0770717 A2 19970502; EP 0770717 A3 19970813; EP 0770717 B1 20030319; JP 3521085 B2 20040419; JP H05501739 A 19930402; JP H05508688 A 19931202; US 5276947 A 19940111; WO 9118134 A1 19911128

DOCDB simple family (application)

DE 9100410 W 19910517; BR 9105752 A 19910517; CS 146091 A 19910517; CS 146291 A 19910517; DE 59108036 T 19910517; DE 59108961 T 19910517; DE 59109111 T 19910517; DE 59109242 T 19910517; DE 59109248 T 19910517; DE 9100409 W 19910517; EP 91909136 A 19910517; EP 91909388 A 19910517; EP 95106898 A 19910517; EP 95120117 A 19910517; EP 96119796 A 19910517; JP 50872591 A 19910517; JP 50892991 A 19910517; US 80785592 A 19920114