EP0615944B1 - Procedure and device for fibre web separation in a drawing frame - Google Patents

Procedure and device for fibre web separation in a drawing frame Download PDF

Info

Publication number
EP0615944B1
EP0615944B1 EP94102760A EP94102760A EP0615944B1 EP 0615944 B1 EP0615944 B1 EP 0615944B1 EP 94102760 A EP94102760 A EP 94102760A EP 94102760 A EP94102760 A EP 94102760A EP 0615944 B1 EP0615944 B1 EP 0615944B1
Authority
EP
European Patent Office
Prior art keywords
sliver
guiding duct
pair
opening edge
drawing frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94102760A
Other languages
German (de)
French (fr)
Other versions
EP0615944A1 (en
Inventor
Wolfgang Göhler
Alfons Zehndbauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0615944A1 publication Critical patent/EP0615944A1/en
Application granted granted Critical
Publication of EP0615944B1 publication Critical patent/EP0615944B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/04—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements
    • B65H67/0428—Arrangements for removing completed take-up packages and or replacing by cores, formers, or empty receptacles at winding or depositing stations; Transferring material between adjacent full and empty take-up elements for cans, boxes and other receptacles
    • B65H67/0434—Transferring material devices between full and empty cans
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a sliver separation, which is installed at the exit of a stretch of the textile industry for the separation of a supplied sliver.
  • the sliver separation becomes necessary when the can has reached the filling level and has to be exchanged for an empty can.
  • a secure separation of the sliver in preparation for the can change is the separation of the sliver below the turntable, i.e. the separation of the sliver between the mouth of the turntable and the can rack.
  • this separation has the disadvantage that after the separation the remaining end of the strip hangs from the mouth of the turntable. There is a risk that the hanging end of the tape does not completely enter an empty jug. This can lead to tape storage problems.
  • the solution according to DE-OS 38 07 239 places the separating device in the area between the belt funnel and the calender rolls.
  • the solution was based on the assumption that the previous separation of the sliver was only carried out by briefly increasing the distance between the sliver funnel and the pair of calender rolls.
  • the band funnel was used as a moving means.
  • the disadvantage was that there was no second clamping of the sliver.
  • DE-OS 38 07 239 eliminates this disadvantage by clamping the fiber sliver on the side of the sliver funnel and then only by changing the distance as a result of the moving movement of the sliver funnel the separation process he follows.
  • the solution described has the disadvantage that this clamping device must also be included in the moving movement of the belt funnel.
  • the solution also has the disadvantage that the tear-off point in the belt above the pair of calender rolls is variable, and that the end of the belt is released after the stop of the calendar rolls by their subsequent rotation or opening (additional effort) for the belt guide channel.
  • CH-A-436 051 uses a separate clamping device between two sections of a tape guide channel.
  • the sliver is separated above this clamping device, which is arranged between the two channels of the sliver guide. Accessibility by hand between the belt guide channel and the pair of calenders is impaired by a stationary head piece on the turntable.
  • the solution also requires increased design effort, since a separate, additional clamping device for sliver and its holder is required.
  • the can to be filled is under the turntable and the turntable is stopped.
  • the sliver delivery on the line is stopped.
  • a feature of the invention that is essential to the process is that, in preparation for the can change, the sliver is separated in the area between the pair of calender rollers and the band guide channel.
  • a separation of the fiber sliver in this area has the advantage that the fiber sliver always has a constant length after the separation, regardless of the position of the closed turntable mouth. After ejection from the mouth of the band guide channel, it hangs down in a defined length on the edge of the can.
  • One feature provides that the sliver is separated between a pair of calender rolls and a nip of the band guide channel. It is advantageous that the separate beginning of the tape can be positioned in the tape guide channel. A subsequent introduction of the beginning of the tape can be avoided.
  • the sliver is separated with less effort, since previous work steps according to the state of the art (mobile movement of the sliver funnel, subsequent rotation of the calender rolls) are saved.
  • a feature of the device is that a mechanical separating device is arranged between the pair of calender rolls and the belt guide channel.
  • a mechanical separating device has a movable separating means which is guided transversely to the direction of transport of the sliver. Since the sliver is folded over on the opening edge of the tape guide channel and forms a clamping point, the clamping device can be dispensed with.
  • forming a clamping point on the sliver guide channel can also be achieved by the feature of an arrangement of a pivotable wall section, a pivoting flap, in the opening area of the sliver guide channel.
  • the swivel flap must be positioned in the direction of the transverse movement of the sliver by rotating the turntable.
  • the transverse movement of the sliver is carried out by a movable release agent.
  • the portable release means for example a swivel arm or pull arm with hook, guides the sliver onto the swivel flap.
  • the lower section of the swivel flap swivels onto the inner wall of the band guide channel and forms a clamping point.
  • the swivel flap swivels back into its starting position and thereby promotes the beginning of the sliver in the sliver guide channel.
  • An external device for reinserting the beginning of the tape into the tape guide channel is advantageously omitted.
  • the fiber sliver is conveyed through the pair of calender rollers 4 and conveyed into the belt guide channel 7.
  • the belt guide channel 7 is part of the turntable 1, which rotates during the filling of the can.
  • the turntable 1 is arranged inside the machine table 5.
  • the sliver is ultimately deposited in the can 6, which is located below the turntable 1.
  • a feature is that the sliver is mechanically separated in the area between the pair of calender rollers 4 and the belt guide channel 7 without a clamping device 3.
  • the separating device 2 separates between the pair of calender rollers 4 and the belt guide channel 7, a clamping point A being formed at the opening edge of the belt guide channel 7 for the separating process.
  • This clamping point A can be formed in any position of the turntable 1 that is shut down.
  • the separating device 2 can, for example, have a separating means which consists of a pull arm 22 'with a hook 22. But it could also be used a swivel arm that swings across the sliver.
  • the hook 22 is horizontally movable.
  • the hook 22 When moving from its starting position, the hook 22 detects the fiber sliver FB. During this movement, the sliver FB is deflected. It is folded over on the opening edge of the belt guide channel 7 and forms a clamping point A. When the hook 22 is moved further into position P1, the sliver becomes between the pair of calender rollers 4 and the belt guide channel 7 separated.
  • Figure 2 shows the deflected band beginning next to the opening edge of the band guide channel 7 after the separation.
  • FIG. 3 shows that the hook 22 has been returned to the starting position and the nozzle 100 is blowing with air at this point in time, so that the beginning of the sliver is positioned in the band guide channel 7.
  • the blowing of the nozzle 100 is stopped again.
  • the nozzle 100 is supplied with air via the feed line 101, the pneumatics and their control not being shown.
  • FIG. 5 Another feature of the separation of the sliver FB in the area between the pair of calender rollers 4 and the sliver guide channel 7 is shown in FIG. 5 in conjunction with FIG. 4.
  • a sliver guide channel 7 according to FIG. FIG. 4 shows, without a turntable 1, the opening area of the band guide channel 7, into which the fiber band is conveyed.
  • This opening area of the band guide channel 7 has a pivotable wall section, a pivoting flap 102.
  • the pivoting flap 102 is mounted in the bearings 103 and 104.
  • the pivoting flap 102 can be pivoted about the bearings 103, 104.
  • the swivel flap 102 forms an elongated, for example rectangular, wall section, one narrow side of which closes with the opening edge.
  • the bearings 103, 104 are offset somewhat from the central axis M of the swivel flap 102 in the direction of the opening.
  • the separating device 2 has, for example, a pull arm 22 'with a hook 22 as a separating means.
  • the hook 22 with the pull arm 22 ' is located outside the transport direction of the fiber sliver FB.
  • the fiber sliver FB is stopped.
  • the hook 22 is moved transversely to the direction of transport of the sliver FB.
  • the hook 22 detects the sliver FB and directs it out of the transport direction.
  • the turntable 1 with the band guide channel 7 and its swivel flap 102 are positioned by controlling the drive (not shown here) which, when the hook 22 moves, always guides the fiber sliver FB onto the swivel flap.
  • the swivel flap 102 swivels back into the original position according to FIG. 4 due to the center of gravity.
  • This feature forms a very secure clamping point on the tape guide channel without the need for an external, feedable clamping device.
  • the beginning of the strip which hangs from the pair of calender rolls 4 and is deflected, is fed back into the strip guide channel. The return takes place through the swivel flap 102. The beginning of the band therefore does not have to be inserted into the band guide channel subsequently.

Landscapes

  • Spinning Or Twisting Of Yarns (AREA)

Description

Die Erfindung betrifft eine Faserbandtrennung, die am Ausgang einer Strecke der Textilindustrie zur Trennung eines gelieferten Faserbandes installiert ist. Die Faserbandtrennung wird notwendig, wenn die Kanne den Füllungszustand erreicht hat und gegen eine leere Kanne gewechselt werden muß.The invention relates to a sliver separation, which is installed at the exit of a stretch of the textile industry for the separation of a supplied sliver. The sliver separation becomes necessary when the can has reached the filling level and has to be exchanged for an empty can.

Nach dem Stand der Technik gilt als eine gesicherte Trennung des Faserbandes in Vorbereitung auf den Kannenwechsel, die Trennung des Faserbandes unterhalb des Drehtellers, d.h. die Trennung des Faserbandes zwischen Mündung des Drehtellers und Kannenablage. Diese Trennung hat jedoch den Nachteil, daß nach dem Trennen das restliche Bandendeaus der Mündung des Drehtellers hängt. Dabei besteht die Gefahr, daß das hängende Bandende nicht vollständig in eine zugeführte leere Kanne gelangt. Das kann zu Störungen der Bandablage führen.According to the prior art, a secure separation of the sliver in preparation for the can change is the separation of the sliver below the turntable, i.e. the separation of the sliver between the mouth of the turntable and the can rack. However, this separation has the disadvantage that after the separation the remaining end of the strip hangs from the mouth of the turntable. There is a risk that the hanging end of the tape does not completely enter an empty jug. This can lead to tape storage problems.

Die Lösung nach DE-OS 38 07 239 setzt die Trennvorrichtung in den Bereich zwischen Bandtrichter und Kalanderwalzen.
Die Lösung ging davon aus, daß die bisherige Trennung des Faserbandes lediglich durch kurzzeitige Abstandsvergrößerung zwischen Bandtrichter und Kalanderwalzenpaar erfolgte. Als bewegliches Mittel war der Bandtrichter eingesetzt. Nachteilig war, daß keine zweite Klemmung des Faserbandes vorlag. Diesen Nachteil beseitigt die DE-OS 38 07 239, indem das Faserband auf der Seite des Bandtrichters geklemmt wird und dann erst durch Abstandsveränderung infolge ortsveränderlicher Bewegung des Bandtrichters der Trennvorgang erfolgt. Nach dem Abriß des Faserbandes wird der Abstand zwischen Bandtrichter und Kalanderwalzenpaar wieder auf die ursprüngliche Distanz verkleinert.
Die beschriebene Lösung hat den Nachteil, daß diese Klemmvorrichtung zusätzlich in die ortsveränderliche Bewegung des Bandtrichters einbezogen werden muß.
Die Lösung hat aber auch den Nachteil, daß der Abreißpunkt im Band oberhalb des Kalanderwalzenpaares variabel ist, und daß das Bandende nach bereits erfolgtem Stopp der Kalanderwalzen durch deren nachträgliche Drehung oder Öffnung (zusätzlicher Aufwand) für den Bandführungskanal freigegeben wird.The solution according to DE-OS 38 07 239 places the separating device in the area between the belt funnel and the calender rolls.
The solution was based on the assumption that the previous separation of the sliver was only carried out by briefly increasing the distance between the sliver funnel and the pair of calender rolls. The band funnel was used as a moving means. The disadvantage was that there was no second clamping of the sliver. DE-OS 38 07 239 eliminates this disadvantage by clamping the fiber sliver on the side of the sliver funnel and then only by changing the distance as a result of the moving movement of the sliver funnel the separation process he follows. After the sliver has been torn off, the distance between the sliver funnel and the pair of calender rolls is reduced again to the original distance.
The solution described has the disadvantage that this clamping device must also be included in the moving movement of the belt funnel.
The solution also has the disadvantage that the tear-off point in the belt above the pair of calender rolls is variable, and that the end of the belt is released after the stop of the calendar rolls by their subsequent rotation or opening (additional effort) for the belt guide channel.

Bei der CH-A-436 051 wird eine separate Klemmvorrichtung zwischen zwei Abschnitten eines Bandführungskanals eingesetzt. Eine Trennung des Faserbandes erfolgt oberhalb dieser Klemmvorrichtung, die zwischen den beiden Kanälen der Bandführung angeordnet ist. Durch ein stationäres Kopfstück am Drehteller wird für das Bedienpersonal die Zugänglichkeit von Hand zwischen Bandführungskanal und Kalanderwalzenpaar verschlechtert. Die Lösung erfordert auch einen erhöhten konstruktiven Aufwand, denn es wird eine eigene, zusätzliche Klemmvorrichtung für Faserband und deren Halterung erforderlich.CH-A-436 051 uses a separate clamping device between two sections of a tape guide channel. The sliver is separated above this clamping device, which is arranged between the two channels of the sliver guide. Accessibility by hand between the belt guide channel and the pair of calenders is impaired by a stationary head piece on the turntable. The solution also requires increased design effort, since a separate, additional clamping device for sliver and its holder is required.

Beim Kannenwechsel an einer Strecke, ist es Aufgabe der Erfindung, mit geringerem Aufwand zur Faserbandtrennung die Nachteile des Standes der Technik zu vermeiden , und daß mit dem Trennen eine definierte Bandlänge zur Kanne erzielt wird.When changing cans on a line, it is the object of the invention to avoid the disadvantages of the prior art with less effort for sliver separation and that a defined strip length to the can is achieved with the separation.

In Vorbereitung auf den Kannenwechsel steht die zu befüllende Kanne unter dem Drehteller und der Drehteller ist stillgesetzt. Die Faserbandlieferung an der Strecke ist gestoppt.In preparation for the can change, the can to be filled is under the turntable and the turntable is stopped. The sliver delivery on the line is stopped.

Ein verfahrenswesentliches Merkmal der Erfindung ist, daß in Vorbereitung auf den Kannenwechsel das Faserband im Bereich zwischen Kalanderwalzenpaar und Bandführungskanal getrennt wird.A feature of the invention that is essential to the process is that, in preparation for the can change, the sliver is separated in the area between the pair of calender rollers and the band guide channel.

Eine Trennung des Faserbandes in diesem Bereich bringt den Vorteil, daß das Faserband unabhängig von der Lage der stillgesetzten Drehtellermündung stets eine gleichbleibende Länge nach der Trennung hat. Nach Ausstoß aus der Mündung des Bandführungskanals hängt es in definierter Länge am Kannenrand herab.A separation of the fiber sliver in this area has the advantage that the fiber sliver always has a constant length after the separation, regardless of the position of the closed turntable mouth. After ejection from the mouth of the band guide channel, it hangs down in a defined length on the edge of the can.

Ein Merkmal sieht vor, daß die Trennung des Faserbandes zwischen Kalanderwalzenpaar und einer Klemmstelle des Bandführungskanals erfolgt. Dabei ist vorteilhaft, daß der getrennte Bandanfang im Bandführungskanal positioniert werden kann. Eine nachträgliche Einführung des Bandanfangs kann vermieden werden.One feature provides that the sliver is separated between a pair of calender rolls and a nip of the band guide channel. It is advantageous that the separate beginning of the tape can be positioned in the tape guide channel. A subsequent introduction of the beginning of the tape can be avoided.

Die Trennung des Faserbandes erfolgt mit geringerem Aufwand, denn bisherige Arbeitsschritte nach dem Stand der Technik (ortsveränderliche Bewegung des Bandtrichters, nachträgliche Drehung der Kalanderwalzen) werden eingespart.The sliver is separated with less effort, since previous work steps according to the state of the art (mobile movement of the sliver funnel, subsequent rotation of the calender rolls) are saved.

Ein vorrichtungsgemäßes Merkmal ist, daß eine mechanische Trennvorrichtung zwischen Kalanderwalzenpaar und Bandführungskanal angeordnet ist.A feature of the device is that a mechanical separating device is arranged between the pair of calender rolls and the belt guide channel.

Ein anderes Merkmal der Vorrichtung ist, daß eine mechanische Trennvorrichtung ein ortsbewegliches Trennmittel hat, das quer zur Transportrichtung des Faserbandes geführt wird. Da dabei das Faserband auf dem Öffnungsrand des Bandführungskanals umgelegt wird und eine Klemmstelle bildet, kann auf die Klemmvorrichtung verzichtet werden.Another feature of the device is that a mechanical separating device has a movable separating means which is guided transversely to the direction of transport of the sliver. Since the sliver is folded over on the opening edge of the tape guide channel and forms a clamping point, the clamping device can be dispensed with.

Bei der Trennung des Faserbandes eine Klemmstelle am Bandführungskanal zu bilden, kann auch durch das Merkmal einer Anordnung eines schwenkbaren Wandungsabschnittes, einer Schwenkklappe, im Öffnungsbereich des Bandführungskanals realisiert werden. Durch die Drehung des Drehtellers muß die Schwenkklappe in Richtung der Querbewegung des Faserbandes positioniert werden. Die Querbewegung des Faserbandes wird durch ein ortsbewegliches Trennmittel ausgeführt. Das ortsbewegliche Trennmittel, beispielsweise ein Schwenkarm oder Zugarm mit Haken, führt das Faserband auf die Schwenkklappe. Beim Auftreffen des Faserbandes auf die Schwenkklappe schwenkt der untere Abschnitt der Schwenkklappe auf die innere Wandung des Bandführungskanals und bildet eine Klemmstelle. Nach Trennung des Faserbandes schwenkt die Schwenkklappe in ihre Ausgangsposition zurück und fördert dabei den herabhängenden Bandanfang in den Bandführungskanal. Vorteilhafterweise entfällt eine externe Vorrichtung zum Wiedereinführen des Bandanfanges in den Bandführungskanal.When separating the fiber sliver, forming a clamping point on the sliver guide channel can also be achieved by the feature of an arrangement of a pivotable wall section, a pivoting flap, in the opening area of the sliver guide channel. The swivel flap must be positioned in the direction of the transverse movement of the sliver by rotating the turntable. The transverse movement of the sliver is carried out by a movable release agent. The portable release means, for example a swivel arm or pull arm with hook, guides the sliver onto the swivel flap. When the sliver strikes the swivel flap, the lower section of the swivel flap swivels onto the inner wall of the band guide channel and forms a clamping point. After the sliver has been separated, the swivel flap swivels back into its starting position and thereby promotes the beginning of the sliver in the sliver guide channel. An external device for reinserting the beginning of the tape into the tape guide channel is advantageously omitted.

Weitere Merkmale der Erfindung werden nachfolgend anhand der beigefügten Figuren erläutert. Es zeigen

Figur 1:
Trennvorrichtung mit Bildung einer Klemmstelle am Bandführungskanal
Figur 2:
Trennvorrichtung gemäß Fig. 1 nach der Trennung
Figur 3:
Trennvorrichtung gemäß Fig. 1 nach der Trennung mit blasender Düse
Figur 4:
Trennvorrichtung und Bandführungskanal mit schwenkbarem Wandungsabschnitt
Figur 5:
schwenkbarer Wandungsabschnitt mit Klemmstelle
Further features of the invention are explained below with reference to the accompanying figures. Show it
Figure 1:
Separating device with formation of a clamping point on the tape guide channel
Figure 2:
1 after the separation
Figure 3:
1 after the separation with blowing nozzle
Figure 4:
Separating device and tape guide channel with swiveling wall section
Figure 5:
swiveling wall section with clamping point

Wie Figur 1 zeigt, wird das Faserband durch das Kalanderwalzenpaar 4 hindurchgefördert und in den Bandführungskanal 7 befördert. Der Bandführungskanal 7 ist ein Teil des Drehtellers 1, der während der Befüllung der Kanne rotiert. Der Drehteller 1 ist angeordnet innerhalb des Maschinentisches 5. Das Faserband wird letztlich in der Kanne 6 abgelegt, die sich unterhalb des Drehtellers 1 befindet.As FIG. 1 shows, the fiber sliver is conveyed through the pair of calender rollers 4 and conveyed into the belt guide channel 7. The belt guide channel 7 is part of the turntable 1, which rotates during the filling of the can. The turntable 1 is arranged inside the machine table 5. The sliver is ultimately deposited in the can 6, which is located below the turntable 1.

Ein Merkmal ist, daß das Faserband im Bereich zwischen Kalanderwalzenpaar 4 und Bandführungskanal 7 ohne Klemmvorrichtung 3 mechanisch getrennt wird. Diese Situation wird dargestellt in Figur 4. Die Trennvorrichtung 2 trennt zwischen Kalanderwalzenpaar 4 und Bandführungskanal 7, wobei für den Trennvorgang eine Klemmstelle A am Öffnungsrand des Bandführungskanals 7 gebildet wird. Diese Klemmstelle A kann in jeder beliebigen Position des stillgesetzten Drehtellers 1 gebildet werden. Die Trennvorrichtung 2 kann beispielsweise ein Trennmittel haben, das aus einem Zugarm 22' mit Haken 22 besteht. Es könnte aber auch ein Schwenkarm Verwendung finden, der quer zum Faserband schwenkt. Der Haken 22 ist horizontal beweglich. Bei Bewegung aus seiner Ausgangslage erfaßt der Haken 22 das Faserband FB. Bei dieser Bewegung wird das Faserband FB ausgelenkt. Es wird auf dem Öffnungsrand des Bandführungskanals 7 umgelegt und bildet dort eine Klemmstelle A. Bei weiterer Bewegung des Hakens 22 bis in Position P1 wird das Faserband zwischen Kalanderwalzenpaar 4 und Bandführungskanal 7 getrennt.A feature is that the sliver is mechanically separated in the area between the pair of calender rollers 4 and the belt guide channel 7 without a clamping device 3. This situation is shown in FIG. 4. The separating device 2 separates between the pair of calender rollers 4 and the belt guide channel 7, a clamping point A being formed at the opening edge of the belt guide channel 7 for the separating process. This clamping point A can be formed in any position of the turntable 1 that is shut down. The separating device 2 can, for example, have a separating means which consists of a pull arm 22 'with a hook 22. But it could also be used a swivel arm that swings across the sliver. The hook 22 is horizontally movable. When moving from its starting position, the hook 22 detects the fiber sliver FB. During this movement, the sliver FB is deflected. It is folded over on the opening edge of the belt guide channel 7 and forms a clamping point A. When the hook 22 is moved further into position P1, the sliver becomes between the pair of calender rollers 4 and the belt guide channel 7 separated.

Figur 2 zeigt den ausgelenkten Bandanfang neben dem Öffnungsrand des Bandführungskanals 7 nach der Trennung.Figure 2 shows the deflected band beginning next to the opening edge of the band guide channel 7 after the separation.

Figur 3 zeigt, daß der Haken 22 in die Ausgangsposition zurückgeführt wurde und die Düse 100 in diesem Zeitpunkt mit Luft bläst, so daß der Faserbandanfang im Bandführungskanal 7 positioniert ist. Wenn dies erreicht wird, wird das Blasen der Düse 100 wieder gestoppt. Die Düse 100 wird mit Luft über die Zuleitung 101 versorgt, wobei die Pneumatik und deren Steuerung nicht dargestellt wurden.FIG. 3 shows that the hook 22 has been returned to the starting position and the nozzle 100 is blowing with air at this point in time, so that the beginning of the sliver is positioned in the band guide channel 7. When this is achieved, the blowing of the nozzle 100 is stopped again. The nozzle 100 is supplied with air via the feed line 101, the pneumatics and their control not being shown.

Ein anderes Merkmal der Trennung des Faserbandes FB im Bereich zwischen Kalanderwalzenpaar 4 und Bandführungskanal 7 zeigt Figur 5 in Verbindung mit Figur 4. Mit einem Bandführungskanal 7 nach Figur 4 wird ebenfalls eine Klemmstelle für den Vorgang der Faserbandtrennung geschaffen. Figur 4 zeigt ohne Drehteller 1 den Öffnungsbereich des Bandführungskanals 7, in den das Faserband hineingefördert wird. Dieser Öffnungsbereich des Bandführungskanals 7 hat einen schwenkbaren Wandungsabschnitt, eine Schwenkklappe 102. Die Schwenkklappe 102 ist gelagert in den Lagern 103 und 104. Um die Lager 103, 104 ist die Schwenkklappe 102 schwenkbar. Die Schwenkklappe 102 bildet einen länglichen, beispielsweise rechteckförmigen Wandungsabschnitt, dessen eine Schmalseite mit dem Öffnungsrand abschließt. Die Lager 103, 104 sind etwas aus der Mittelachse M der Schwenkklappe 102 in Richtung Öffnung versetzt.Another feature of the separation of the sliver FB in the area between the pair of calender rollers 4 and the sliver guide channel 7 is shown in FIG. 5 in conjunction with FIG. 4. A sliver guide channel 7 according to FIG. FIG. 4 shows, without a turntable 1, the opening area of the band guide channel 7, into which the fiber band is conveyed. This opening area of the band guide channel 7 has a pivotable wall section, a pivoting flap 102. The pivoting flap 102 is mounted in the bearings 103 and 104. The pivoting flap 102 can be pivoted about the bearings 103, 104. The swivel flap 102 forms an elongated, for example rectangular, wall section, one narrow side of which closes with the opening edge. The bearings 103, 104 are offset somewhat from the central axis M of the swivel flap 102 in the direction of the opening.

Nach Figur 5 hat die Trennvorrichtung 2 beispielsweise als Trennmittel einen Zugarm 22' mit Haken 22. Der Haken 22 mit dem Zugarm 22' befindet sich außerhalb der Transportrichtung des Faserbandes FB. Das Faserband FB ist gestoppt. Der Haken 22 wird quer zur Transportrichtung des Faserbandes FB bewegt. Der Haken 22 erfaßt das Faserband FB und lenkt es aus der Transportrichtung heraus. Der Drehteller 1 mit Bandführungskanal 7 und dessen Schwenkklappe 102 werden positioniert durch Steuerung des hier nicht dargestellten Antriebs, das bei der definierten Bewegung des Haken 22 dieser stets das Faserband FB auf die Schwenkklappe führt. Dabei wird durch das aufliegende Faserband FB die Schwenkklappe 102 gemäß Figur 5 geschwenkt, so daß der von der Öffnung des Bandführungskanals abgewandte, untere Teil der Schwenkklappe 102 das Faserband an der gegenüberliegenden, inneren Wandung des Bandführungskanal klemmt und eine Klemmstelle B bildet. Die weitere Bewegung des Hakens 22 trennt das Faserband FB zwischen Haken 22 und Klemmstelle B des Bandführungkanals 7. Nach der Trennung schwenkt die Schwenkklappe 102 infolge der Schwerpunktlage in die ursprüngliche Position nach Figur 4 zurück. Durch dieses Merkmal wird eine sehr sichere Klemmstelle am Bandführungskanal gebildet, ohne daß eine externe, zuführbare Klemmvorrichtung erforderlich wird. Vorteilhafterweise wird dabei der von dem Kalanderwalzenpaar 4 herabhängende und ausgelenkte Bandanfang in den Bandführungskanal zurückgeführt. Die Zurückführung erfolgt durch die Schwenkklappe 102. Der Bandanfang muß also nicht nachträglich in den Bandführungskanal eingeführt werden.According to FIG. 5, the separating device 2 has, for example, a pull arm 22 'with a hook 22 as a separating means. The hook 22 with the pull arm 22 'is located outside the transport direction of the fiber sliver FB. The fiber sliver FB is stopped. The hook 22 is moved transversely to the direction of transport of the sliver FB. The hook 22 detects the sliver FB and directs it out of the transport direction. The turntable 1 with the band guide channel 7 and its swivel flap 102 are positioned by controlling the drive (not shown here) which, when the hook 22 moves, always guides the fiber sliver FB onto the swivel flap. 5, so that the lower part of the pivoting flap 102 facing away from the opening of the band guiding channel clamps the fiber band on the opposite inner wall of the band guiding channel and forms a clamping point B. The further movement of the hook 22 separates the sliver FB between the hook 22 and the clamping point B of the band guide channel 7. After the separation, the swivel flap 102 swivels back into the original position according to FIG. 4 due to the center of gravity. This feature forms a very secure clamping point on the tape guide channel without the need for an external, feedable clamping device. Advantageously, the beginning of the strip, which hangs from the pair of calender rolls 4 and is deflected, is fed back into the strip guide channel. The return takes place through the swivel flap 102. The beginning of the band therefore does not have to be inserted into the band guide channel subsequently.

Claims (8)

  1. A method of sliver separation on a drawing frame, wherein the sliver is conveyed into a sliver-guiding duct (7) through a pair of calender rollers (4) and is deposited in a can (6) and the sliver delivery on the drawing frame is stopped while the cans are changed, characterized in that the sliver (FB) is clamped by folding onto the opening edge of the sliver-guiding duct (7) situated directly opposite the pair of calender rollers and is then separated mechanically between the pair of calender rollers (4) and the said sliver-guiding duct (7).
  2. A method according to Claim 1, characterized in that a clamping point (A) is formed by folding the sliver onto the opening edge of the sliver-guiding duct (7).
  3. A method according to one of Claims 1 or 2, characterized in that the separated leading end of the sliver is blown by means of air out of a nozzle (100) into the sliver-guiding duct (7).
  4. A method according to Claim 1, characterized in that a clamping point (B) is formed by moving the sliver transversely towards a pivotable wall portion of the sliver-guiding duct (7) positioned in the direction of movement.
  5. A drawing frame with a pair of calender rollers (4) and a sliver-guiding duct (7) arranged downstream thereof, and a sliver-separating device for performing the method according to one or more of Claims 1 to 3, characterized in that a mechanical separating device (2) is arranged between the pair of calender rollers (4) and the directly opposite opening edge of the sliver-guiding duct (7), and the upper opening edge of the said sliver-guiding duct (7) is a device for clamping the sliver.
  6. A drawing frame with a pair of calender rollers (4) and a sliver-guiding duct (7) arranged downstream thereof, and a sliver-separating device for performing the method according to one or more of Claims 1, 3 and 4, characterized in that a mechanical separating device (2) is arranged between the pair of calender rollers (4) and the directly opposite opening edge of the sliver-guiding duct (7), and a wall portion pivotable on the upper opening edge of the sliver-guiding duct (7) is a device for clamping.
  7. A drawing frame according to Claim 6, characterized in that the pivotable wall portion is a pivoting flap (102).
  8. A drawing frame according to Claim 7, characterized in that the bearings (103, 104) of the pivoting flap (102) are arranged outside the imaginary median axis (M) thereof in the direction of opening edge of the sliver-guiding duct (7).
EP94102760A 1993-03-18 1994-02-24 Procedure and device for fibre web separation in a drawing frame Expired - Lifetime EP0615944B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4308606A DE4308606A1 (en) 1993-03-18 1993-03-18 Method and device for sliver separation on a line
DE4308606 1993-03-18

Publications (2)

Publication Number Publication Date
EP0615944A1 EP0615944A1 (en) 1994-09-21
EP0615944B1 true EP0615944B1 (en) 1996-10-02

Family

ID=6483112

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94102760A Expired - Lifetime EP0615944B1 (en) 1993-03-18 1994-02-24 Procedure and device for fibre web separation in a drawing frame

Country Status (3)

Country Link
US (1) US5448801A (en)
EP (1) EP0615944B1 (en)
DE (2) DE4308606A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0636566B1 (en) * 1993-07-24 1998-05-27 Rieter Ingolstadt Spinnereimaschinenbau AG Method to deposit the end of a tow of textile filaments for a rectangular container and apparatus for its execution
EP0681983B1 (en) * 1994-05-13 1998-06-24 Rieter Ingolstadt Spinnereimaschinenbau AG Method and apparatus for positioning a sliver end on a filled can with elongate cross-section
IT1282655B1 (en) * 1995-03-11 1998-03-31 Truetzschler & Co PROCEDURE AND DEVICE FOR THE SEPARATION OF A CARD TAPE WHEN CHANGING THE CANS IN A DRAWING FRAME
DE102004017441B4 (en) * 2004-04-08 2011-09-01 Rieter Ingolstadt Gmbh Process for fiber composite separation and spinning preparation machine

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL269452A (en) * 1960-09-22
US3083416A (en) * 1960-09-22 1963-04-02 Toyo Boseki Pneumatic cutting and introduction of textile sliver into can
US3354513A (en) * 1964-01-23 1967-11-28 Inst Textile Tech Doffing apparatus
US3381342A (en) * 1964-02-10 1968-05-07 Warner Swasey Co Method and apparatus for handling sliver
US3334385A (en) * 1964-10-01 1967-08-08 Maremont Corp Coilers
US3386134A (en) * 1964-10-01 1968-06-04 Maremont Corp Textile sliver can changing and storage apparatus
DE1510428B2 (en) * 1966-12-17 1974-01-24 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Method and device for tearing off fiber slivers on sliver depositing devices
DE2626651A1 (en) * 1976-06-15 1977-12-29 Barmag Barmer Maschf CABLE CATCHING AND CUTTING DEVICE
DE2646313C2 (en) * 1976-10-14 1986-07-03 W. Schlafhorst & Co, 4050 Mönchengladbach Method and device for replacing sliver cans
DE2947342A1 (en) * 1979-01-03 1980-07-17 Heberlein Hispano Sa DEVICE FOR SEPARATING A RIBBON
DE3361459D1 (en) * 1982-06-08 1986-01-23 Rieter Ag Maschf Device for cutting a sliver
DE3324461C1 (en) * 1983-07-07 1984-10-25 Trützschler GmbH & Co KG, 4050 Mönchengladbach Device for cutting a sliver when changing cans on spinning preparation machines
DE3609198A1 (en) * 1986-03-19 1987-09-24 Neumuenster Masch App DEVICE FOR DEPOSITING TENSIONING CABLES
DE3612133C2 (en) * 1986-04-10 1995-02-16 Truetzschler Gmbh & Co Kg Belt guide channel between output rollers and calender rollers on a spinning preparation machine
IT1207807B (en) * 1987-06-05 1989-06-01 Bacciottini F Lli S N C Off DEVICE FOR THE INTERRUPTION OF A TEXTILE FIBER BELT.
CS277008B6 (en) * 1987-06-24 1992-11-18 Schubert & Salzer Maschinen Apparatus for stable fiber sliver automatic feeding
DE3807239C2 (en) * 1988-03-05 1996-08-29 Truetzschler Gmbh & Co Kg Device for depositing a sliver supplied by a spinning preparation machine
DE3837596A1 (en) * 1988-11-05 1990-05-10 Rosink Gmbh & Co Kg KANNENSTOCK
CH679773A5 (en) * 1989-11-07 1992-04-15 Rieter Ag Maschf
DE4028365A1 (en) * 1990-09-07 1992-03-12 Jakob Bahmer Sliver feed - has closed channel between take=off rollers and layer with suction to draw it towards the sliver can end
DE9014575U1 (en) * 1990-09-07 1991-02-07 Bahmer, Jakob
IT1241035B (en) * 1990-12-21 1993-12-27 Sant Andrea Novara Spa PLANT AND PROCEDURE FOR THE STRETCH OF TEXTILE FIBER TAPES, WORKING CONTINUOUSLY.
DE4123205C2 (en) * 1991-07-10 1996-02-08 Spinnereimaschinenbau Leisnig Sliver separation on spinning preparation machines
DE9108621U1 (en) * 1991-07-10 1991-09-05 Grossenhainer Textilmaschinenbau Gmbh, O-8280 Grossenhain, De

Also Published As

Publication number Publication date
DE4308606A1 (en) 1994-09-22
DE59400752D1 (en) 1996-11-07
EP0615944A1 (en) 1994-09-21
US5448801A (en) 1995-09-12

Similar Documents

Publication Publication Date Title
DE3026995C2 (en)
EP0681983B1 (en) Method and apparatus for positioning a sliver end on a filled can with elongate cross-section
DE3508942C2 (en) Unit consisting of spinning machine and winding machine and at least one automatic yarn damping device
EP1829807A2 (en) Device for depositing strip material
DE2154119A1 (en) Method and apparatus for treating sheet material
CH682922A5 (en) Method and apparatus for automatically piecing a fibrous web into a sliver for example in a carding machine.
DE4334394A1 (en) Air blowing nozzle for web winding machines
DE1510234A1 (en) Tape storage system
EP0615944B1 (en) Procedure and device for fibre web separation in a drawing frame
EP0411382B1 (en) Cops-preparation device to wind up the free thread end at the top of the cops
DE19804415C1 (en) Method and device for shortening the flag after a flying roll change
EP1101720B1 (en) Installation for drying and cooling and subsequently winding or transversally cutting a paper web
EP0725005B1 (en) Device for binding goods with a strap
EP0401162B1 (en) Combing machine
CH683915A5 (en) An apparatus for supplying a sliver.
EP0593587B1 (en) Fibre web separation in spinning works preparation machines
EP0274678B1 (en) Storage device for the transportation of a shut-like textile material
EP0736620B1 (en) Guiding device for sliver for a sliver processing textile machine and method for its operation
CH703975A2 (en) Apparatus for supplying cores to winding rollers for the manufacture of a package made of fiber material, for example on a tape winder.
DE2505547A1 (en) METHOD AND DEVICE FOR ACCEPTANCE AND STORAGE FORMATION FOR THREAD BUNDLES PRODUCED FROM HIGHLY POLYMERIC DOMA
DE3806511C2 (en)
DE4300712C2 (en) Folding machine for rectangular textiles
DE2915915A1 (en) CABLE FEEDING DEVICE
EP1321406A2 (en) Device for winding a web
DE4035143A1 (en) DOUBLE SUPPORT ROLLER REWINDING MACHINE FOR THE AXLE WINDING OF A TRACK OF GOODS OR A WAY THROUGH THE SPLIT OF TWO SUPPORT ROLLERS OF A SUPPORT ROLLER PAIR. OF SEVERAL ADJUSTABLE USE STRIPS MADE OF PLASTIC, FLEECE, PAPER OR THE LIKE ON ONE OR MORE SEALING WRAPPINGS

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19940308

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES IT LI

17Q First examination report despatched

Effective date: 19941103

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES IT LI

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19961002

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

REF Corresponds to:

Ref document number: 59400752

Country of ref document: DE

Date of ref document: 19961107

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19970228

Ref country code: CH

Effective date: 19970228

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19970326

Year of fee payment: 4

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981103

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050224