EP3507404B1 - Vorrichtung und verfahren zur erfassung und dehnung von schussfäden - Google Patents

Vorrichtung und verfahren zur erfassung und dehnung von schussfäden Download PDF

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Publication number
EP3507404B1
EP3507404B1 EP17746448.4A EP17746448A EP3507404B1 EP 3507404 B1 EP3507404 B1 EP 3507404B1 EP 17746448 A EP17746448 A EP 17746448A EP 3507404 B1 EP3507404 B1 EP 3507404B1
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EP
European Patent Office
Prior art keywords
weft thread
suction nozzle
weaving machine
reed
guiding
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EP17746448.4A
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English (en)
French (fr)
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EP3507404A1 (de
EP3507404C0 (de
Inventor
Marnix Ghesquiere
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Picanol NV
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Picanol NV
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Publication of EP3507404B1 publication Critical patent/EP3507404B1/de
Publication of EP3507404C0 publication Critical patent/EP3507404C0/de
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/308—Stretching or holding the weft

Definitions

  • the invention relates to a weaving machine provided with a device for catching and stretching weft threads, and to a method for catching and stretching weft threads.
  • catching threads For catching a leading end of a weft thread inserted into a shed (also referred to as "inserted weft thread” in the following) and for holding the inserted weft thread with a desired tension, the use of so-called “catching threads” is known from the prior art.
  • the catching threads run in parallel to the warp threads next to the shed and form a separate shed which may be closed earlier than the normal shed via associated shed-forming means, so as to bind the inserted weft thread at an appropriate moment and with an appropriate tension.
  • WO 2013/117564 A2 discloses a device for catching and stretching a weft thread inserted into a shed of a weaving machine avoiding catching threads.
  • the device comprises a weft thread stretching device arranged stationary on the weaving machine in an extension of an insertion path of the weft thread for catching the leading end part of the inserted weft thread and stretching the caught weft thread, a weft thread holding device arranged stationary on the weaving machine in a region of the beat-up line for holding the leading end part of at least one beaten-up weft thread, and a moveable guiding device arranged on the sley for movement with the sley for guiding the caught weft thread towards the weft thread holding device.
  • the weft thread holding device disclosed in WO 2013/117564 A2 comprises a suction nozzle with a suction opening facing the reed, at which suction opening an entry slit is provided.
  • US 4,096,889 shows a tensioning device comprising a U-shaped auxiliary element positioned in alignment with the weft insertion path, wherein an air passage is generated between the two legs of the U-shaped element, perpendicular to the beat-up line.
  • JPH02-384 and JPH10-130999 A show mechanical tensioning devices.
  • EP 1 055 752 A1 shows a weft yarn end removing mechanism comprising a weft thread stretching device arranged for a movement together with a reed and a weft yarn removing mechanism comprising a suction device which is disposed with respect to a beat-up line or cloth fell in a take-up direction.
  • US 3,658,098 shows a weft end suction device with a weft receiving and guiding block for a double sided weft insertion loom, which block is moveably arranged to adopt two different positions for launching and receiving a weft thread.
  • Weft thread tensioning devices with suction nozzles are further shown in JPS45-8370 Y1 , JPH09-256245 and EP 1 365 053 A1 .
  • a weaving machine comprising a sley, which is moveable to-and-fro between a most rearward position for an insertion of a weft thread and a most forward position for beating-up the inserted weft thread, and a reed mounted to the sley, the reed having a guiding channel, which guiding channel determines an insertion path of the weft thread, and a device for catching and stretching a weft thread inserted into a shed of the weaving machine is provided, the device comprising a weft thread stretching device for catching the leading end part of the inserted weft thread and stretching the caught weft thread, which weft thread stretching device is arranged stationary on the weaving machine in an extension of an insertion path of the weft thread, a weft thread holding device for holding the leading end part of at least one beaten-up weft thread, which weft thread holding device is arranged stationary on the weaving machine in a region of a beat-up line, a
  • the opening of the first suction nozzle arranged in the region of the beat-up line is directed towards the fabric edge of the fabric.
  • the opening is directed at least essentially towards a guiding channel of the reed, if the reed is in its most forward position towards the beat-up line.
  • the weft threads held by the first suction nozzle extend in an at least essentially straight line in the extension of the beat-up line. This allows for a good stretching and, if required, an advantageous hand-over of the weft threads to a tucking-in device, a cutting device and/or catching threads arranged at the arrival side of the shed.
  • the first suction nozzle is a ring-jet suction nozzle.
  • a suction operation is obtained by blowing past the inlet of the suction nozzle.
  • the diameter of the inlet is selected so as to be sufficiently large to allow weft threads to pass easily through the suction nozzle.
  • the first suction nozzle can be mounted in an adjustable position to the weaving machine in the region of the beat-up line.
  • the first suction nozzle is adjustable in its height position perpendicular to a woven fabric as well as in its position towards and away from a beat-up line.
  • the position is adjustable by an operator of the weaving machine for example depending on a weft thread thickness and/or a type of weave binding and/or an arrangement of a tucking-in device.
  • the guiding device for moving the weft threads towards the first suction nozzle is a blowing device.
  • a reed functions as the guiding device.
  • the guiding device comprises a hook-shaped guiding element, for example a hook-shaped guiding element provided with a recess having inwardly converging sidewalls for receiving the weft thread.
  • the guiding device having a hook-shaped guiding element further comprises an adjustable stopping element for adjusting the depth of the recess as described in WO 2013/117564 A2 .
  • a weft detector is provided on the sley, which functions as guiding device having a guiding element for guiding the caught weft thread towards the first suction nozzle.
  • the number of elements arranged on the sley and to be moved during beat-up can be reduced.
  • an additional guiding element is provided.
  • the additional guiding element is arranged downstream of the weft detector in the insertion direction.
  • the second suction nozzle is a ring-jet suction nozzle, the opening of which is directed towards a guiding channel of the reed, when the reed is in its most rearward position, away from the beat-up line.
  • the second suction nozzle can also be mounted in an adjustable position to the weaving machine. In this case, the position is adjustable by an operator of the weaving machine for example depending on a weft thread thickness and/or a type of weave binding and/or a type of guiding device used.
  • the second suction nozzle is connected to the control unit, wherein the second suction nozzle is controlled by the control unit so that the second suction nozzle is activated upon insertion of a weft thread into the shed for catching the inserted weft thread and is deactivated upon or shortly after the caught weft thread arrives at the first suction nozzle.
  • the deactivation of the second suction nozzle allows for a good transfer of the weft threads from the second suction nozzle towards the first suction nozzle.
  • the first suction nozzle is controlled by the control unit so that the first suction nozzle is activated upon or shortly before the weft thread caught by the second suction nozzle is moved towards the first suction nozzle.
  • the first suction nozzle can be deactivated after a leading end of the free end has been cut off and removed, or after the free end is held by catching threads or clamping elements or holding elements.
  • catching threads are provided between the fabric edge and the first suction nozzle.
  • the catching threads can be used to hold the free ends of inserted weft threads.
  • a tucking-in device is provided between the fabric edge and the first suction nozzle for tucking in the free end of at least one weft thread.
  • the tucking-in device is also referred to as selvedge forming device.
  • the tucking-in device comprises at least one blowing nozzle adapted for blowing onto the free end of at least one weft thread in order to deflect the free end towards a subsequent shed.
  • the tucking-in device can be designed and operated similar to the tucking-in device described in US 6,837,279 B2 .
  • a tucking-in device comprises a hook-shaped element or bracket, which is provided with blowing nozzles for blowing a free end of a weft thread into the shed.
  • the tucking-in device is preferably mounted adjustable in position to the weaving machine.
  • a cutting device is provided between the tucking-in device and the first suction nozzle for cutting off a leading end of at least one weft thread before tucking in the remaining part of the free end.
  • the cut-off leading ends can be removed towards a waste container by means of the first suction nozzle.
  • an additional nozzle is provided for removal of the cut-off leading ends.
  • a method for catching and stretching a weft thread inserted into a shed of a weaving machine comprising a sley, which is moveable to-and-fro between a most rearward position for an insertion of a weft thread and a most forward position for beating-up the inserted weft thread, and a reed mounted to the sley, the reed having a guiding channel, which guiding channel determines an insertion path of the weft thread, using a device with a weft thread stretching device for catching the leading end part of the inserted weft thread and stretching the caught weft thread, which weft thread stretching device is arranged stationary on the weaving machine in an extension of an insertion path of the weft thread, a weft thread holding device for holding the leading end part of at least one beaten-up weft thread, which weft thread holding device is arranged stationary on the weaving machine in a region of the beat-up line, a move
  • the second suction nozzle is activated upon insertion of a weft thread into the shed for catching the inserted weft thread and is deactivated upon or shortly after the caught weft thread arrives at the first suction nozzle.
  • the first suction nozzle is activated upon or shortly before the caught weft thread is moved towards the first suction nozzle.
  • Figs. 1 to 5 show a device 1 for catching and stretching weft threads mounted to a weaving machine, wherein the weaving machine is only partly shown.
  • weft threads 3 are inserted into a shed formed between planes of warp threads 4 (see Fig. 5 ) by selectively raising and lowering warp threads 4.
  • the weft thread 3 is supported in a known way by relay nozzles 5 (see Fig. 2 ) and guided in a guiding channel 6 (see Fig. 2 ) of a reed 7, which guiding channel 6 determines an insertion path of the inserted weft thread 3.
  • a first weft detector 8 is arranged at the end of the insertion path next to the reed 7 to detect the arrival of the weft thread 3.
  • the reed 7 and the first weft detector 8 are mounted to a sley 9 and moveable by means of the sley 9 to-and-fro between a most rearward position for an insertion of a weft thread as shown in Fig. 3 and a most forward position for beating-up the inserted weft thread as shown in Fig. 4 .
  • the device 1 for catching and stretching a weft thread inserted into the shed comprises a weft thread stretching device 28 arranged stationary on the weaving machine in an extension of an insertion path and a weft thread holding device 27 arranged stationary on the weaving machine in a region of a beat-up line 10 (see Fig. 5 ).
  • a first suction nozzle 11 is provided as the weft thread holding device 27 and a second suction nozzle 12 is provided as the weft thread stretching device 28.
  • Both, the first suction nozzle 11 and the second suction nozzle 12 are designed as ring-jet suction nozzles, wherein a suction operation is obtained by blowing past an inlet of the suction nozzle.
  • the inlets or openings 23, 24 of both suction nozzles 11, 12 are directed towards a fabric edge 14 (see Fig. 5 ), in particular towards the extension of the fabric edge 14.
  • the two suction nozzles 11, 12 each generate a suction stream in parallel to the beat-up line 10.
  • Air for the suction operation is supplied by supply tubes 13.
  • a second weft detector 15 is mounted to the sley 9 for detecting insertion errors.
  • the first suction nozzle 11 and the second suction nozzle 12 are not mounted on the sley 9.
  • the first suction nozzle 11 and the second suction nozzle 12 are arranged stationary on the weaving machine by means of a support beam 16 and two mounting plates 17, 18 for mounting the first suction nozzle 11 and the second suction nozzle 12 to the support beam 16, respectively.
  • setting means 29 are provided for the support beam 16, that for example comprise a slot hole and a fixing bolt, for conjointly displacing both suction nozzles 11, 12 with respect to the beat-up line 10.
  • similar setting means 30, 31 are provided on the support beam 16 and the mounting plates 17, 18 allowing an individual adjustment of the position of the mounting plates 17, 18 with respect to the support beam 16.
  • the mounting plate 17 can be mounted in a horizontal position and in a settable vertical position to the support beam 16, while the mounting plate 18 can be mounted in two horizontal positions and in a settable vertical position to the support beam 16.
  • threaded holes are provided in the support beam 16 for bolts of the setting means 30 and a row of threaded holes 32 is provided in the support beam 16 in which bolts of the setting means 31 can selectively be screwed.
  • the first suction nozzle 11 is arranged so that a center axis of its opening 23 at least essentially coincides with the guiding channel 6 of the reed 7, when the reed 7 is in its most forward position
  • the second suction nozzle 12 is arranged so that a center axis of its opening 24 at least essentially coincides with the guiding channel 6 of the reed 7, when the reed 7 is in its most rearward position.
  • the first suction nozzle 11 is therefore also referred to as front suction nozzle and the second suction nozzle 12 is referred to as rear suction nozzle.
  • the device 1 shown in Fig. 1 further comprises a tucking-in device 19, arranged between the fabric edge 14 and the first suction nozzle 11 for tucking in the free end of at least one inserted weft thread 3.
  • the tucking-in device 19 comprises a hook-shaped element 20, which is provided with blowing nozzles 21 for blowing a free end of a weft thread 3 into the shed.
  • the tucking-in device 19 comprises at least two mutually opposite blowing nozzles 21 arranged at a side of the hook-shaped element 20 facing the fabric edge 14. In the embodiment shown, four blowing nozzles 21 are provided that are arranged in two pairs. The operation and the arrangement of the blowing nozzles 21 are for example as described in US 6,837,279 B2 .
  • a cutting device 22 is provided between the tucking-in device 19 and the first suction nozzle 11, wherein the cutting device 22 is arranged for cutting off the leading ends of inserted weft threads 3 near a side face of the hook-shaped element 20.
  • the inserted weft thread 3 is caught and stretched by means of the second suction nozzle 12, which is arranged in the extension of the guiding channel 6, when the reed 7 is in its most rearward position.
  • the reed 7 is moved by means of the sley 9 towards a beat-up line 10 (see Fig. 5 ) of a fabric 2 for a beat-up motion.
  • the weft thread 3, that is caught and stretched by the second suction nozzle 12, as schematically shown in Fig. 1 is moved with the reed 7 and an additional guiding device 25 towards the beat-up line 10.
  • the guiding device 25 for example comprises a hook-shaped guiding element 26 provided with a recess having inwardly converging sidewalls for receiving the weft thread 3.
  • the first weft detector 8 that is arranged on the sley 9 functions as the guiding device 25 for guiding the caught weft thread 3 towards the first suction nozzle 11, more in particular the first weft detector 8 is provided with the hook-shaped guiding element 26 of the guiding device 25.
  • This hook-shaped guiding element 26 can consist of a profiled plate which is part of the weft detector 8, for example a profiled plate that is designed as the plate 33 which is part of the weft detector 15.
  • the reed 7 may function as guiding element of a guiding device for guiding the caught weft thread 3 towards the first suction nozzle 11 upon movement of the reed 7.
  • the weft thread 3 is moved into the effective range of the first suction nozzle 11 and can be transferred to the first suction nozzle 11.
  • the second suction nozzle 12 is deactivated once the weft thread 3 has entered the effective range of the first suction nozzle 11.
  • This allows for a good stretching of inserted weft threads 3 and a suitable operation of the tucking-in device 19.
  • the leading ends of the inserted weft threads are cut off and the blowing nozzles 21 of the tucking-in device 19 are activated for deflecting the remaining part of the free ends of the inserted weft threads towards the shed, wherein the free ends are conjointly bound in the fabric 2 with a subsequently inserted weft thread 3.
  • the cut-off ends can be transported via the first suction nozzle 11 towards a waste container (not shown).
  • the second suction nozzle 12 is activated upon insertion of a weft thread 3 into the shed for catching the inserted weft thread and is deactivated upon or shortly after the caught weft thread 3 arrives at the effective range of the first suction nozzle 11.
  • the first suction nozzle 11 is activated upon or shortly before the caught weft thread is moved towards the first suction nozzle 11 by means of the reed 7 and/or the weft detector 8 and/or any other guiding means.
  • the first suction nozzle 11 can be deactivated after the leading end has been cut off by means of the cutting device 22 and the cut-off ends have been transported towards a waste container.
  • the activation and deactivation of the first suction nozzle 11, the second suction nozzle 12 and the blowing nozzles 21 of the tucking-in device 19 can be controlled by means of a control unit (not shown), which may be incorporated in the central control unit of the weaving machine.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Claims (12)

  1. Webmaschine umfassend eine Weblade (9), die hin und her zwischen einer hintersten Position zum Eintragen eines Schussfadens (3) und einer vordersten Position zum Anschlagen des eingetragenen Schussfadens (3) bewegbar ist, ein Webblatt (7) montiert an der Weblade (9), wobei das Webblatt (7) einen Führungskanal (6) aufweist, welcher Führungskanal (6) eine Eintragsbahn des Schussfadens (3) bestimmt, und eine Vorrichtung zum Fangen und Strecken eines in ein Webfach der Webmaschine eingetragenen Schussfadens (3), die Vorrichtung umfassend eine Schussfadenstreckvorrichtung (28) zum Fangen des vorderen Endteils des eingetragenen Schussfadens (3) und zum Strecken des aufgefangenen Schussfadens (3), welche Schussfadenstreckvorrichtung (28) ortsfest an der Webmaschine in einer Verlängerung der Eintragsbahn des Schussfadens (3) angeordnet ist, eine Schussfadenhaltevorrichtung (27) zum Halten des vorderen Endteils mindestens eines angeschlagenen Schussfadens, welche Schussfadenhaltevorrichtung (27) ortsfest an der Webmaschine in einem Bereich einer Anschlaglinie (10) angeordnet ist, eine bewegbare Führungsvorrichtung (25) zum Führen des aufgefangenen Schussfadens (3) in Richtung der Schussfadenhaltevorrichtung (27), welche bewegbare Führungsvorrichtung (25) an der Weblade (9) zur Bewegung mit der Weblade (9) angeordnet ist, und eine Steuereinheit, wobei eine erste Saugdüse (11) als die Schussfadenhaltevorrichtung (27) vorgesehen ist, wobei eine zweite Saugdüse (12) als die Schussfadenstreckvorrichtung (28) vorgesehen ist, wobei die Öffnung (24) der zweiten Saugdüse (12) zum Führungskanal (6) des Webblattes (7) gerichtet ist, wenn das Webblatt (7) sich in seiner hintersten Position weg von der Anschlaglinie (10) befindet, dadurch gekennzeichnet, dass die erste Saugdüse (11) eine Öffnung (23) aufweist, wobei die Öffnung (23) zu einer Gewebekante (14) des Gewebes (2) gerichtet ist und somit zum Führungskanal (6) des Webblattes (7) gerichtet ist, wenn das Webblatt (7) sich in seiner vordersten Position zur Anschlaglinie (10) befindet, und die erste Saugdüse (11) dazu ausgebildet ist, einen Saugstrom parallel zur Anschlaglinie (10) zu erzeugen, so dass nach dem Anschlagen des Schussfadens (3) ein in der ersten Saugdüse (11) gehaltenes freies Ende des Schussfadens (3) sich mindestens im Wesentlichen parallel zur Anschlaglinie (10) erstreckt, und wobei die erste Saugdüse (11) mit der Steuereinheit verbunden ist und von der Steuereinheit so gesteuert wird, dass die erste Saugdüse (11) aktiviert wird, bei oder kurz bevor der von der zweiten Saugdüse (12) aufgefangene Schussfaden (3) in Richtung der ersten Saugdüse (11) bewegt wird.
  2. Webmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die erste Saugdüse (11) eine Ringstrahl-Saugdüse ist.
  3. Webmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die erste Saugdüse (11) in einer einstellbaren Position im Bereich der Anschlaglinie (10) an der Webmaschine montiert ist.
  4. Webmaschine nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass die Führungsvorrichtung (25) ein hakenförmiges Führungselement (26) umfasst, das beispielsweise mit einer Aussparung mit nach innen konvergierenden Seitenwänden zur Aufnahme des Schussfadens (3) vorgesehen ist.
  5. Webmaschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass ein Schusswächter (8) an der Weblade (9) vorgesehen ist, der als Führungsvorrichtung (25) zur Führung des aufgefangenen Schussfadens (3) in Richtung der ersten Saugdüse (11) fungiert.
  6. Webmaschine nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die zweite Saugdüse (12) eine Ringstrahl-Saugdüse ist.
  7. Webmaschine nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die zweite Saugdüse (12) mit der Steuereinheit verbunden ist, wobei die zweite Saugdüse (12) von der Steuereinheit so gesteuert wird, dass die zweite Saugdüse (12) beim Eintragen eines Schussfadens (3) in das Webfach zum Fangen des eingetragenen Schussfadens (3) aktiviert wird und bei oder kurz nach der Ankunft des aufgefangenen Schussfadens (3) an der ersten Saugdüse (11) deaktiviert wird.
  8. Webmaschine nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass eine Kanteneinlegevorrichtung (19) zwischen der Gewebekante (14) und der ersten Saugdüse (11) vorgesehen ist, zum Einlegen des freien Endes mindestens eines Schussfadens.
  9. Webmaschine nach Anspruch 8, dadurch gekennzeichnet, dass die Kanteneinlegevorrichtung (19) mindestens eine Blasdüse (21) umfasst, die zum Blasen auf das freie Ende mindestens eines Schussfadens (3) ausgebildet ist, um das freie Ende umzulenken.
  10. Webmaschine nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass eine Schneidevorrichtung (22) zwischen der Kanteneinlegevorrichtung (19) und der ersten Saugdüse (11) vorgesehen ist, zum Schneiden eines vorderen Endes von mindestens einem Schussfaden (3) vor dem Einlegen des verbleibenden Teils des freien Endes.
  11. Verfahren zum Fangen und Strecken eines in ein Webfach einer Webmaschine eingetragenen Schussfadens (3), die Webmaschine umfassend eine Weblade (9), die hin und her zwischen einer hintersten Position zum Eintragen eines Schussfadens (3) und einer vordersten Position zum Anschlagen des eingetragenen Schussfadens (3) bewegbar ist, und ein an der Weblade (9) montiertes Webblatt (7), wobei das Webblatt (7) einen Eintragskanal (6) aufweist, welcher Eintragskanal (6) eine Eintragsbahn des Schussfadens (3) bestimmt, unter Verwendung einer Vorrichtung (1) mit einer Schussfadenstreckvorrichtung (28) zum Fangen des vorderen Endteils des eingetragenen Schussfadens (3) und zum Strecken des aufgefangenen Schussfadens (3), welche Schussfadenstreckvorrichtung (28) ortsfest an der Webmaschine in einer Verlängerung der Eintragsbahn des Schussfadens (3) angeordnet ist, einer Schussfadenhaltevorrichtung (27) zum Halten des vorderen Endteils mindestens eines angeschlagenen Schussfadens, welche Schussfadenhaltevorrichtung (27) ortsfest an der Webmaschine in einem Bereich einer Anschlaglinie (10) angeordnet ist, einer bewegbaren Führungsvorrichtung (25) zum Führen des aufgefangenen Schussfadens (3) in Richtung der Schussfadenhaltevorrichtung (27), welche bewegbare Führungsvorrichtung (25) an der Weblade (9) zur Bewegung mit der Weblade (9) angeordnet ist, und einer Steuereinheit, wobei eine erste Saugdüse (11) als die Schussfadenhaltevorrichtung (27) vorgesehen ist, und wobei eine zweite Saugdüse (12) als die Schussfadenstreckvorrichtung (28) vorgesehen ist, wobei die Öffnung (24) der zweiten Saugdüse (12) zum Führungskanal (6) des Webblattes (7) gerichtet ist, wenn das Webblatt (7) sich in seiner hintersten Position weg von der Anschlaglinie (10) befindet, dadurch gekennzeichnet, dass die erste Saugdüse (11) eine Öffnung (23) aufweist, wobei die Öffnung (23) zu einer Gewebekante (14) des Gewebes (2) gerichtet ist und somit zum Führungskanal (6) des Webblattes (7) gerichtet ist, wenn das Webblatt (7) sich in seiner vordersten Position zur Anschlaglinie (10) befindet, wobei die erste Saugdüse (11) einen Saugstrom parallel zur Anschlaglinie (10) erzeugt, so dass ein in der ersten Saugdüse (11) gehaltenes freies Ende des Schussfadens (3) sich mindestens im Wesentlichen parallel zur Anschlaglinie (10) erstreckt, und wobei die erste Saugdüse (11) mit der Steuereinheit verbunden ist und von der Steuereinheit so gesteuert wird, dass die erste Saugdüse (11) aktiviert wird, bei oder kurz bevor der von der zweiten Saugdüse (12) aufgefangene Schussfaden (3) in Richtung der ersten Saugdüse (11) bewegt wird.
  12. Verfahren zum Fangen und Strecken eines Schussfadens nach Anspruch 11, dadurch gekennzeichnet, dass die zweite Saugdüse (12) aktiviert wird beim Eintragen eines Schussfadens (3) in das Webfach zum Fangen des eingetragenen Schussfadens, und deaktiviert wird bei oder kurz nachdem der aufgefangene Schussfaden an der ersten Saugdüse (11) ankommt.
EP17746448.4A 2016-09-02 2017-07-27 Vorrichtung und verfahren zur erfassung und dehnung von schussfäden Active EP3507404B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE2016/0141A BE1024545B1 (nl) 2016-09-02 2016-09-02 Inrichting en werkwijze voor het vangen en strekken van inslagdraden
PCT/EP2017/068962 WO2018041485A1 (en) 2016-09-02 2017-07-27 Device and method for catching and stretching weft threads

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EP3507404A1 EP3507404A1 (de) 2019-07-10
EP3507404B1 true EP3507404B1 (de) 2023-09-06
EP3507404C0 EP3507404C0 (de) 2023-09-06

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EP (1) EP3507404B1 (de)
CN (1) CN109642362B (de)
BE (1) BE1024545B1 (de)
WO (1) WO2018041485A1 (de)

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH404573A (de) * 1963-09-12 1965-12-15 Saurer Ag Adolph Saugvorrichtung an Webmaschinen
JPS458370Y1 (de) * 1965-12-11 1970-04-20
US3658098A (en) * 1970-10-22 1972-04-25 Hubert Peter Van Mullekom Weaving machine
NL7605882A (nl) * 1976-05-31 1977-12-02 Rueti Te Strake Bv Weefmachine.
JPH0616947Y2 (ja) * 1988-06-14 1994-05-02 株式会社豊田自動織機製作所 無杼織機におけるよこ糸張力付与装置
JPH09256245A (ja) * 1996-03-22 1997-09-30 Toyota Autom Loom Works Ltd ジェットルームにおける緯糸張力付与装置
JPH10130999A (ja) * 1996-10-31 1998-05-19 Tsudakoma Corp 流体噴射式織機における緯糸把持緊張装置
JP2000328399A (ja) * 1999-05-19 2000-11-28 Tsudakoma Corp 緯糸先端の処理方法および処理装置
BE1013428A3 (nl) 2000-05-08 2002-01-15 Picanol Nv Kanteninleginrichting voor weefmachines.
EP1365053B1 (de) * 2002-04-26 2005-07-20 Sultex AG Fang- und Haltevorrichtung für das fangseitige Schussfadenende in einer Webmaschine
CN202030902U (zh) * 2011-04-07 2011-11-09 建滔（连州）玻璃纤维有限公司 喷气织布机二道剪吸管装置
BE1020142A3 (nl) * 2011-04-11 2013-05-07 Picanol Draadklem voor een inslagdraad bij een weefmachine.
BE1020533A3 (nl) * 2012-02-08 2013-12-03 Picanol Inrichting en werkwijze voor het vangen en strekken van een inslagdraad.
BE1021449B1 (nl) * 2012-10-01 2015-11-25 Picanol Naamloze Vennootschap Inrichting en werkwijze voor het bewaken van een inslagdraad

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Publication number Publication date
BE1024545B1 (nl) 2018-04-05
EP3507404A1 (de) 2019-07-10
CN109642362B (zh) 2021-08-06
BE1024545A1 (nl) 2018-03-28
CN109642362A (zh) 2019-04-16
WO2018041485A1 (en) 2018-03-08
EP3507404C0 (de) 2023-09-06

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