EP0044879A1 - Weft insertion device for looms - Google Patents

Weft insertion device for looms Download PDF

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Publication number
EP0044879A1
EP0044879A1 EP80104495A EP80104495A EP0044879A1 EP 0044879 A1 EP0044879 A1 EP 0044879A1 EP 80104495 A EP80104495 A EP 80104495A EP 80104495 A EP80104495 A EP 80104495A EP 0044879 A1 EP0044879 A1 EP 0044879A1
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EP
European Patent Office
Prior art keywords
coupled
drive
weft insertion
insertion device
drive shaft
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Granted
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EP80104495A
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German (de)
French (fr)
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EP0044879B1 (en
Inventor
Mathias Müller
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TEXTILMASCHINEN MULLER GmbH
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Priority to AT80104495T priority Critical patent/ATE14459T1/en
Priority to EP80104495A priority patent/EP0044879B1/en
Publication of EP0044879A1 publication Critical patent/EP0044879A1/en
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Publication of EP0044879B1 publication Critical patent/EP0044879B1/en
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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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/275—Drive mechanisms
    • 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
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms

Definitions

  • the invention relates to a weft insertion device with two oppositely movable and insertable from both sides in a loom, each attached to a carrier tape thread grippers for converting a shuttle loom to a defenseless weaving machine.
  • Non-contact looms are known, also machines with weft insertion devices of the above-mentioned type, in which a weft thread is inserted from one of the two grippers to the center of the shed, where it is taken over by a second gripper inserted from the other end of the shed and runs completely over the entire length of the shed, during which first gripper is moved back to its starting position.
  • the object of the invention is to design such a weft insertion device in such a way that it can subsequently be attached to weaving machines working with shooters in order to convert these shooter weaving machines to defenseless weaving machines.
  • both support bands are designed as toothed bands are and are each in engagement with a sprocket operated in an alternating direction, which is drivingly coupled via a motion conversion device with a drive shaft of the shedding device of the weaving machine rotating in the same direction.
  • the same drive device is expediently provided for each of the two carrier belts, and the two drive devices are of identical design at the opposite ends of the machine.
  • the movement conversion device for deriving the oppositely reciprocating movements of the two carrier tapes provided with the thread grippers from a drive shaft of the machine rotating in the same direction can have a crank arm which is adjustably arranged on the drive shaft and which is coupled to a lever with its end about a stationary one Pin is pivotally mounted and the other end is coupled via a link to a longitudinally movable carriage, which in turn is coupled to the associated sprocket by means of a drive chain.
  • the slide can advantageously be mounted so that it can be pushed back and forth on two guide rods, on which both ends of the drive chain are fastened, which is guided via a first and a second deflection wheel which is coaxially connected to the chain wheel.
  • the weft insertion device designed according to the invention does not require any separate drive devices and associated synchronous control devices, but can be designed with relatively little effort and in a space-saving manner and can be coupled in a circuit-synchronous manner to drive parts of the weaving machine. By retrofitting the machine machine operation is considerably quieter. Also, this drive in the end positions and reversal of movement of the carrying tapes brings these tapes to a brief standstill, by means of which on the one hand the transfer of a weft thread from one gripper to the other in the center of the compartment and the detection of the start of a weft thread by one of the two grippers outside of the Subject is favored.
  • weft insertion device essential to the invention are shown together with parts of the weaving machine frame. All other parts of the weaving machine are not shown. There is also no illustration of the weft supply bobbins which are not essential to the invention, the cutting device for the weft and the control device for opening and closing the thread grippers.
  • FIG. 1 shows the two end sections 10 and 11 of a weaving machine frame, to which upper and lower holding arms 12, 13 and 14, 15 are fastened. At both ends of the weaving machine, drive devices 16 and 17 for a first thread gripper 18 and a second thread gripper 19 are arranged in mirror image form.
  • Both thread grippers 18 and 19 are each fastened to a carrying belt 20 or 21 and are inserted with the aid of these carrying belts, which are guided by rollers in a manner not shown in detail, from opposite sides into a shed of the weaving machine, not shown, so that they meet in the center of the compartment , where a transfer of a weft start from the first gripper 18 to the second gripper 19 takes place, whereupon the two grippers are then moved away from each other in the opposite direction and moved out of the shed.
  • a weft thread is passed from one side to the other of a warp thread arrangement through the formed shed by means of the two grippers 18 and 19 and then integrated in a known manner.
  • Each of the two drive devices 16 and 17 is driven by a drive shaft 22 or 23, which is mounted in the end part 10 or 11 of the weaving machine frame and can be moved in the same direction, of the shedding device of the weaving machine, not shown.
  • a crank arm 24 is attached to the projecting end of the drive shaft 22 with a crank pin 25 which is adjustably arranged in the crank arm for the purpose of stroke adjustment.
  • the crank pin 25 moves a handlebar 26 which has a longitudinal slot, not shown, in which a guide pin 27 slides, which is arranged in the central region of a lever 28. 1 shows, the lever 28 is cranked. As can best be seen from FIG.
  • the lever is pivotably mounted with its one end 29.1 on a pin 30 which is stationary on the end part 10 of the weaving machine frame.
  • a link 29 is articulated, the other end of which is articulated to a slide 31.
  • the slide 31 is mounted on two parallel guide rods 32 so as to be longitudinally displaceable.
  • the two ends 33.1 and 33.2 (FIG. 1) of a drive chain 33 are fastened to it, which are guided over a lower deflection wheel 34 and an upper deflection wheel 35.
  • the upper deflection wheel 35 is coaxially connected to a sprocket 36 which is in engagement with the carrier belt 20 carrying the gripper 18.
  • the crank arm 24, the lever 26, the pivot lever 28 and the link 29 form a movement reversing device with which the same-directional movement of the drive shaft 22 into a reciprocating longitudinal movement of the carriage 31 and from there into a reciprocating rotary movement of the chain wheel 36 is transmitted.
  • the weft insertion device with its two drive devices 16 and 17 can be retrofitted to practically every weaving machine working with shooters, the adaptation to the different types of weaving machines and weaving machine sizes being carried out by a corresponding adjustment according to the length and degree of cranking of the parts of the movement conversion devices.

Abstract

1. A weft insertion device for converting a shuttle loom into a shuttleless loom, having two oppositely-movable thread grippers (18, 19) which can be introduced from both sides into a shed and which are respectively fastened to a toothed band (20, 21) which meshed with a chain wheel (36) which is driven by means of a drive chain (33) with an alternating direction of revolution and which is coupled with a drive shaft (22, 23), revolving in the same direction, of the weaving machine by way of a movement reversing mechanism which contains a crank arm (24) which is fastened to the drive shaft, characterised in that the movement reversing mechanism has a lever (28) which has one end (28.1) which is swingable about a stationary pin (30) and which carries in its middle region a hinge pin (27) which projects into a longitudinal slot of a guide rod (26) which is coupled with the crank arm (24), and the other end of which is coupled by way of a guide rod (29) with a sliding carriage (31) which is mounted so as to be longitudinally movable and to which the drive chain (33) is connected.

Description

Die Erfindung betrifft eine Schußeintragvorrichtung mit zwei entgegengesetzt bewegbaren und von beiden Seiten in ein Webfach einbringbaren, jeweils an einem Tragband befestigten Fadengreifern zur Umrüstung einer Schützenwebmaschine auf eine schützenlose Webmaschine.The invention relates to a weft insertion device with two oppositely movable and insertable from both sides in a loom, each attached to a carrier tape thread grippers for converting a shuttle loom to a defenseless weaving machine.

Schützenlose Webmaschinen sind bekannt, auch Maschinen mit Schußeintragvorrichtungen der vorstehend genannten Art, bei denen ein Schußfaden von einem der beiden Greifer zur Fachmitte eingebracht wird, wo ihn ein vom anderen Ende des Faches eingeführter zweiter Greifer übernimmt und vollends über die ganze Fachlänge durchzieht, während der erste Greifer wieder in seine Ausgangsstellung zurückbewegt wird.Non-contact looms are known, also machines with weft insertion devices of the above-mentioned type, in which a weft thread is inserted from one of the two grippers to the center of the shed, where it is taken over by a second gripper inserted from the other end of the shed and runs completely over the entire length of the shed, during which first gripper is moved back to its starting position.

Der Erfindung liegt die Aufgabe zugrunde, eine solche Schußeintragvorrichtung so auszubilden, daß sie nachträglich an mit Schützen arbeitende Webmaschinen angebracht werden kann, um diese Schützenwebmaschinen auf schützenlose Webmaschinen umzustellen.The object of the invention is to design such a weft insertion device in such a way that it can subsequently be attached to weaving machines working with shooters in order to convert these shooter weaving machines to defenseless weaving machines.

Die gestellte Aufgabe wird mit einer Schußeintragvorrichtung der eingangs genannten Art erfindungsgemäß dadurch gelöst, daß beide Tragbänder als Zahnbänder ausgebildet sind und jeweils in Eingriff mit einem in wechselnder Richtung betriebenen Kettenrad stehen, das über eine Bewegungsumsetzeinrichtung mit einer gleichsinnig umlaufenden Antriebswelle der Fachbildungseinrichtung der Webmaschine antriebsmäßig gekoppelt ist. Zweckmäßig ist für jedes der beiden Tragbänder die gleiche Antriebseinrichtung vorgesehen, und die beiden Antriebseinrichtungen sind an den entgegengesetzten Enden der Maschine spiegelbildlich gleich ausgebildet.The object is achieved with a weft insertion device of the type mentioned in the present invention in that both support bands are designed as toothed bands are and are each in engagement with a sprocket operated in an alternating direction, which is drivingly coupled via a motion conversion device with a drive shaft of the shedding device of the weaving machine rotating in the same direction. The same drive device is expediently provided for each of the two carrier belts, and the two drive devices are of identical design at the opposite ends of the machine.

Die Bewegungsumsetzeinrichtung zur Ableitung der gegenläufig hin- und hergehenden Bewegungen der beiden mit den Fadengreifern versehenen Tragbänder von einer gleichsinnig umlaufenden Antriebswelle der Maschine kann erfindungsgemäß einen auf der Antriebswelle verstellbar angeordneten Kurbelarm aufweisen, der mit einem Hebel gekoppelt ist, der mit seinem Ende um einen stationären Zapfen verschwenkbar gelagert ist und dessen anderes Ende über einen Lenker mit einem längsbewegbaren Schlitten gekoppelt ist, der seinerseits mittels einer Antriebskette mit dem zugeordneten Kettenrad gekoppelt ist. Vorteilhafterweise kann der Schlitten auf zwei Führungsstangen hin-und herverschiebbar gelagert sein, an dem beide Enden der Antriebskette befestigt sind, die über ein erstes und ein koaxial mit dem Kettenrad fest verbundenes zweites Umlenkrad geführt ist.According to the invention, the movement conversion device for deriving the oppositely reciprocating movements of the two carrier tapes provided with the thread grippers from a drive shaft of the machine rotating in the same direction can have a crank arm which is adjustably arranged on the drive shaft and which is coupled to a lever with its end about a stationary one Pin is pivotally mounted and the other end is coupled via a link to a longitudinally movable carriage, which in turn is coupled to the associated sprocket by means of a drive chain. The slide can advantageously be mounted so that it can be pushed back and forth on two guide rods, on which both ends of the drive chain are fastened, which is guided via a first and a second deflection wheel which is coaxially connected to the chain wheel.

Die erfindungsgemäß ausgebildete Schußeintragvorrichtung macht keine gesonderten Antriebsvorrichtungen und zugehörigen Synchronsteuereinrichtungen erforderlich, sondern läßt sich mit relativ wenig Aufwand und platzsparend ausbilden und schaltungssynchron mit Antriebsteilen der Webmaschine koppeln. Durch die Umrüstung der Maschine gestaltet sich der Maschinenbetrieb erheblich geräuschärmer. Auch wird durch diesen Antrieb in den Endstellungen und Bewegungsumkehrstellungen der Tragbänder ein kurzzeitiger Stillstand dieser Bänder erreicht, durch welchen einerseits die Übergabe eines Schußfadens vom einen Greifer auf den anderen in der Fachmitte sowie das Erfassen des Anfangs eines Schußfadens durch den einen der beiden Greifer außerhalb des Faches begünstigt wird.The weft insertion device designed according to the invention does not require any separate drive devices and associated synchronous control devices, but can be designed with relatively little effort and in a space-saving manner and can be coupled in a circuit-synchronous manner to drive parts of the weaving machine. By retrofitting the machine machine operation is considerably quieter. Also, this drive in the end positions and reversal of movement of the carrying tapes brings these tapes to a brief standstill, by means of which on the one hand the transfer of a weft thread from one gripper to the other in the center of the compartment and the detection of the start of a weft thread by one of the two grippers outside of the Subject is favored.

Nachfolgend wird ein Ausführungsbeispiel einer erfindungsgemäß ausgebildeten Schußeintragvorrichtung anhand' der beiliegenden Zeichnungen näher erläutert.An exemplary embodiment of a weft insertion device designed according to the invention is explained in more detail below with reference to the accompanying drawings.

Im einzelnen zeigen:

  • Fig. 1 eine Vorderansicht der beiden Antriebseinrichtungen für die beiden Fadengreifer;
  • Fig. 2 + 3 eine Seitenansicht einer der beiden Antriebseinrichtungen bei zwei unterschiedlichen Antriebsstellungen der Vorrichtung.
In detail show:
  • Figure 1 is a front view of the two drive devices for the two thread grippers.
  • Fig. 2 + 3 is a side view of one of the two drive devices with two different drive positions of the device.

In den Figuren sind nur die erfindungswesentlichen Teile der Schußeintragvorrichtung zusammen mit Teilen des Webmaschinengestelles dargestellt. Alle anderen Teile der Webmaschine sind nicht dargestellt. Es ist auch auf eine Darstellung der für die Erfindung nicht wesentlichen Schußfadenvorratsspulen, der Schneidvorrichtung für den Schußfaden und der Steuereinrichtung zum Öffnen und Schließen der Fadengreifer verzichtet worden.In the figures, only the parts of the weft insertion device essential to the invention are shown together with parts of the weaving machine frame. All other parts of the weaving machine are not shown. There is also no illustration of the weft supply bobbins which are not essential to the invention, the cutting device for the weft and the control device for opening and closing the thread grippers.

Aus Fig. 1 sind die beiden Endabschnitte 10 und 11 eines Webmaschinengestells ersichtlich, an denen obere und untere Haltearme 12, 13 bzw. 14, 15 befestigt sind. An beiden Enden der Webmaschine sind spiegelbildlich gleich ausgebildete Antriebseinrichtungen 16 und 17 für einen ersten Fadengreifer 18 und einen zweiten Fadengreifer 19 angeordnet. Beide Fadengreifer 18 und 19 sind jeweils an einem Tragband 20 oder 21 befestigt und werden mit Hilfe dieser in nicht näher dargestellter Weise durch Rollen geführten Tragbänder entgegengesetzt zueinander von gegenüberliegenden Seiten in ein Webfach der nicht dargestellten Webmaschine eingeführt, so daß sie sich in der Fachmitte treffen, wo eine Übergabe eines Schußfadenanfangs vom ersten Greifer 18 auf den zweiten Greifer 19 erfolgt, worauf dann die beiden Greifer wieder in entgegengesetzter Richtung voneinander entfernt und aus dem Webfach herausbewegt werden. Auf diese Weise wird mittels der beiden Greifer 18 und 19 ein Schußfaden von der einen zur anderen Seite einer Kettfadenanordnung durch das gebildete Webfach hindurchgeführt und anschließend in bekannter Weise eingebunden.1 shows the two end sections 10 and 11 of a weaving machine frame, to which upper and lower holding arms 12, 13 and 14, 15 are fastened. At both ends of the weaving machine, drive devices 16 and 17 for a first thread gripper 18 and a second thread gripper 19 are arranged in mirror image form. Both thread grippers 18 and 19 are each fastened to a carrying belt 20 or 21 and are inserted with the aid of these carrying belts, which are guided by rollers in a manner not shown in detail, from opposite sides into a shed of the weaving machine, not shown, so that they meet in the center of the compartment , where a transfer of a weft start from the first gripper 18 to the second gripper 19 takes place, whereupon the two grippers are then moved away from each other in the opposite direction and moved out of the shed. In this way, a weft thread is passed from one side to the other of a warp thread arrangement through the formed shed by means of the two grippers 18 and 19 and then integrated in a known manner.

Da beide Antriebsvorrichtungen 16 und 17 spiegelbildlich gleich ausgebildet sind, wird im folgenden nur eine der beiden Antriebsvorrichtungen näher erläutert. Jede der beiden Antriebsvorrichtungen 16 und 17 wird von einer im Endteil 10 oder 11 des Webmaschinengestelles gelagerten, gleichsinnig bewegbaren Antriebswelle 22 bzw. 23 der nicht dargestellten Fachbildungseinrichtung der Webmaschine angetrieben. Zu diesem Zweck ist auf das vorstehende Ende der Antriebswelle 22 ein Kurbelarm 24 mit einem im Kurbelarm zwecks einer Hubverstellung verstellbar angeordneten Kurbelzapfen 25 befestigt. Der Kurbelzapfen 25 bewegt einen Lenker 26, der einen nicht näher dargestellten Längsschlitz aufweist, in welchem ein Führungszapfen 27 gleitet, der im Mittelbereich eines Hebels 28 angeordnet ist. Wie Fig. 1 zeigt, ist der Hebel 28 gekröpft. Wie am besten aus Fig. 2 ersichtlich ist, ist der Hebel mit seinem einen Ende 29.1 auf einem auf dem Endteil 10 des Webmaschinengestells stationären Zapfen 30 verschwenkbar gelagert. Am anderen freien Ende des Hebels 28 ist das eine Ende eines Lenkers 29 angelenkt, dessen anderes Ende mit einem Schlitten 31 gelenkig verbunden ist.Since both drive devices 16 and 17 have the same mirror image, only one of the two drive devices is explained in more detail below. Each of the two drive devices 16 and 17 is driven by a drive shaft 22 or 23, which is mounted in the end part 10 or 11 of the weaving machine frame and can be moved in the same direction, of the shedding device of the weaving machine, not shown. For this purpose, a crank arm 24 is attached to the projecting end of the drive shaft 22 with a crank pin 25 which is adjustably arranged in the crank arm for the purpose of stroke adjustment. The crank pin 25 moves a handlebar 26 which has a longitudinal slot, not shown, in which a guide pin 27 slides, which is arranged in the central region of a lever 28. 1 shows, the lever 28 is cranked. As can best be seen from FIG. 2, the lever is pivotably mounted with its one end 29.1 on a pin 30 which is stationary on the end part 10 of the weaving machine frame. At the other free end of the lever 28, one end of a link 29 is articulated, the other end of which is articulated to a slide 31.

Der Schlitten 31 ist auf zwei parallelen Führungsstangen 32 längsverschiebbar gelagert. An ihm sind die beiden Enden 33.1 und 33.2 (Fig. 1) einer Antriebskette 33 befestigt, die über ein unteres Umlenkrad 34 und ein oberes Umlenkrad 35 geführt ist. Das obere Umlenkrad 35 ist koaxial mit einem Kettenrad 36 fest verbunden, das mit dem den einen Greifer 18 tragenden Tragband 20 in Eingriff steht.The slide 31 is mounted on two parallel guide rods 32 so as to be longitudinally displaceable. The two ends 33.1 and 33.2 (FIG. 1) of a drive chain 33 are fastened to it, which are guided over a lower deflection wheel 34 and an upper deflection wheel 35. The upper deflection wheel 35 is coaxially connected to a sprocket 36 which is in engagement with the carrier belt 20 carrying the gripper 18.

Der Kurbelarm 24, der Hebel 26, der Schwenkhebel 28 und der Lenker 29 bilden eine Bewegungsumkehreinrichtung, mit welcher die gleichsinnige Bewegung der Antriebswelle 22 in eine hin- und hergehende Längsbewegung des Schlittens 31 und von dort aus in eine hin- und hergehende Drehbewegung des Kettenrades 36 übertragen wird. Die Schußeintragvorrichtung mit ihren beiden Antriebseinrichtungen 16 und 17 läßt sich nachträglich an praktisch jede mit Schützen arbeitende Webmaschine anbringen, wobei die Anpassung an die unterschiedlichen Webmaschinentypen und Webmaschinengrößen durch eine entsprechende Anpassung nach Länge und Kröpfungsgrad der Teile der Bewegungsumsetzeinrichtungen erfolgt.The crank arm 24, the lever 26, the pivot lever 28 and the link 29 form a movement reversing device with which the same-directional movement of the drive shaft 22 into a reciprocating longitudinal movement of the carriage 31 and from there into a reciprocating rotary movement of the chain wheel 36 is transmitted. The weft insertion device with its two drive devices 16 and 17 can be retrofitted to practically every weaving machine working with shooters, the adaptation to the different types of weaving machines and weaving machine sizes being carried out by a corresponding adjustment according to the length and degree of cranking of the parts of the movement conversion devices.

Claims (4)

1. Schußeintragvorrichtung mit zwei entgegengesetzt bewegbaren und von beiden Seiten in ein Webfach einbringbaren, jeweils an einem Tragband befestigten Fadengreifern zur Umrüstung einer Schützenwebmaschine auf eine schützenlose Webmaschine, dadurch gekennzeichnet, daß beide Tragbänder (20, 21) als Zahnbänder ausgebildet sind und jeweils in Eingriff mit einem in wechselnder Richtung betriebenen Kettenrad (36) stehen, das über eine Bewegungsumsetzeinrichtung mit einer gleichsinnig umlaufenden Antriebswelle (22, 23) der Fachbildungseinrichtung der Webmaschine antriebsmäßig gekoppelt ist.1. weft insertion device with two oppositely movable and insertable from both sides in a loom, each attached to a carrier tape thread grippers for converting a shuttle loom to a defenseless weaving machine, characterized in that both carrier tapes (20, 21) are designed as toothed belts and each in engagement stand with a sprocket (36) operated in an alternating direction, which is coupled in terms of drive by means of a movement conversion device to a drive shaft (22, 23) of the shedding device of the weaving machine rotating in the same direction. 2. Schußeintragvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Bewegungsumsetzeinrichtung einen auf der Antriebswelle (22) verstellbar angeordneten Kurbelarm (24) aufweist, der mit einem Hebel (28) gekoppelt ist, der mit seinem einen Ende (28.1) um einen stationären Zapfen (30) verschwenkbar gelagert ist und dessen anderes Ende über einen Lenker (29) mit einem längsbewegbaren Schlitten (31) gekoppelt ist, der seinerseits mittels einer Antriebskette (33) mit dem zugeordneten Kettenrad (36) gekoppelt ist.2. weft insertion device according to claim 1, characterized in that the movement conversion device has a crank arm (24) which is arranged on the drive shaft (22) in an adjustable manner and which is coupled to a lever (28) which has one end (28.1) around a stationary pin (30) is pivotably mounted and the other end of which is coupled via a link (29) to a longitudinally movable carriage (31), which in turn is coupled to the associated chain wheel (36) by means of a drive chain (33). 3. Schußeintragvorrichtung nach Anspruch 1 und 2, dadurch gekennzeichnet, daß der Schlitten (33) auf zwei Führungsstangen (32) hin- und herverschiebbar gelagert ist und an ihm beide Enden (33.1, 33.2) der Antriebskette (33) befestigt sind, die über ein erstes und ein koaxial mit dem Kettenrad (36) fest verbundenes zweites Umlenkrad (35) geführt ist.3. weft insertion device according to claim 1 and 2, characterized in that the carriage (33) on two guide rods (32) is mounted to slide back and forth and both ends (33.1, 33.2) of the drive chain (33) are attached to it, which about a first and a second deflection wheel (35) which is fixedly connected coaxially with the chain wheel (36). 4. Schußeintragvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Antriebseinrichtungen (16, 17) für die beiden Tragbänder (20, 21) der beiden Fadengreifer (18, 19) gesondert und an entgegengesetzten Enden der Maschine spiegelbildlich gleich ausgebildet sind.4. weft insertion device according to one of claims 1 to 3, characterized in that the drive devices (16, 17) for the two carrying bands (20, 21) of the two thread grippers (18, 19) are formed separately and mirror-inverted the same at opposite ends of the machine .
EP80104495A 1980-07-30 1980-07-30 Weft insertion device for looms Expired EP0044879B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT80104495T ATE14459T1 (en) 1980-07-30 1980-07-30 WEFT INSERT DEVICE FOR LOOPPING MACHINES.
EP80104495A EP0044879B1 (en) 1980-07-30 1980-07-30 Weft insertion device for looms

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Application Number Priority Date Filing Date Title
EP80104495A EP0044879B1 (en) 1980-07-30 1980-07-30 Weft insertion device for looms

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EP0044879A1 true EP0044879A1 (en) 1982-02-03
EP0044879B1 EP0044879B1 (en) 1985-07-24

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AT (1) ATE14459T1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548226A1 (en) * 1983-07-01 1985-01-04 Moulding Sa Mechanisms for converting conventional weaving looms into shuttleless weaving looms
CN115233361A (en) * 2022-08-03 2022-10-25 江苏佩捷纺织智能科技有限公司 Full-automatic yarn pushing device for spinning

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2401491A1 (en) * 1973-01-23 1974-07-25 Doriguzzi S A S Off DEVICE FOR CONVERTING A LOOM WITH A WEBBOAT INTO A LOOM WITHOUT A WEBCHIP
GB1407632A (en) * 1972-03-06 1975-09-24 Mackie & Sons Ltd J Looms
DE2807920A1 (en) * 1977-02-28 1978-08-31 Shenkar College Of Fashion And DEVICE FOR CONVERTING A NAVY CHAIR IN A RAPID WOVEN
BE867817A (en) * 1978-06-05 1978-10-02 Lefebre Pannecoucke IMPROVEMENTS TO THE DRIVE OF RAPERS IN WEAVING MACHINES
DE2628402B2 (en) * 1975-06-24 1980-04-30 Raymond Amiens Somme Dewas (Frankreich) Loom with weft entry from stationary bobbins

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407632A (en) * 1972-03-06 1975-09-24 Mackie & Sons Ltd J Looms
DE2401491A1 (en) * 1973-01-23 1974-07-25 Doriguzzi S A S Off DEVICE FOR CONVERTING A LOOM WITH A WEBBOAT INTO A LOOM WITHOUT A WEBCHIP
DE2628402B2 (en) * 1975-06-24 1980-04-30 Raymond Amiens Somme Dewas (Frankreich) Loom with weft entry from stationary bobbins
DE2807920A1 (en) * 1977-02-28 1978-08-31 Shenkar College Of Fashion And DEVICE FOR CONVERTING A NAVY CHAIR IN A RAPID WOVEN
BE867817A (en) * 1978-06-05 1978-10-02 Lefebre Pannecoucke IMPROVEMENTS TO THE DRIVE OF RAPERS IN WEAVING MACHINES

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2548226A1 (en) * 1983-07-01 1985-01-04 Moulding Sa Mechanisms for converting conventional weaving looms into shuttleless weaving looms
CN115233361A (en) * 2022-08-03 2022-10-25 江苏佩捷纺织智能科技有限公司 Full-automatic yarn pushing device for spinning

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EP0044879B1 (en) 1985-07-24
ATE14459T1 (en) 1985-08-15

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