EP1943379B1 - Weaving machine comprising pneumatic weft insertion - Google Patents

Weaving machine comprising pneumatic weft insertion Download PDF

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Publication number
EP1943379B1
EP1943379B1 EP06741665A EP06741665A EP1943379B1 EP 1943379 B1 EP1943379 B1 EP 1943379B1 EP 06741665 A EP06741665 A EP 06741665A EP 06741665 A EP06741665 A EP 06741665A EP 1943379 B1 EP1943379 B1 EP 1943379B1
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EP
European Patent Office
Prior art keywords
weaving machine
weft thread
weft
drive device
nozzles
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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.)
Not-in-force
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EP06741665A
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German (de)
French (fr)
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EP1943379A1 (en
Inventor
Francisco Speich
Erwin Meier
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Textilma AG
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Textilma AG
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Publication of EP1943379A1 publication Critical patent/EP1943379A1/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
    • D03D47/28—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
    • D03D47/3006—Construction of the nozzles
    • D03D47/3013—Main nozzles
    • 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
    • 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
    • D03D47/3026—Air supply systems
    • D03D47/3033—Controlling the air supply
    • D03D47/3046—Weft yarn selection

Definitions

  • the invention relates to a loom with pneumatic weft insertion according to the preamble of claim 1.
  • a loom with pneumatic weft insertion of the type mentioned is for example from the WO 97/13901 known.
  • the weaving machine has a reed, which is assigned a guide device with a guide channel for a weft.
  • the guide channel is pivotally connected to the reed between an entry position and a stop position for the weft.
  • the guide channel in the entry position associated with a stationary weft insertion device with nozzles, which is thus arranged independently from the reed and thus on the one hand does not affect the movement of the reed and on the other hand is not affected by the movements of the reed itself.
  • a pair of scissors is used to cut off the inserted weft thread.
  • the nozzles are arranged pivotably in the vertical direction and are driven by a jacquard device and a return spring.
  • a jacquard device By means of the jacquard device in pairs two nozzles are presented to the guide channel, in each case only one tuyere is used. Since the scissors cut off the registered weft thread at the entry point at the tuyere, the registered weft thread must be held up to the Anschlagskante by means of a clamping device.
  • the clamping device is associated with the reed and is moved with this.
  • the clamping device is relatively complicated and prone to failure.
  • the height control of the blowing nozzles by means of the jacquard device is also relatively complicated and has only a limited flexibility and accuracy.
  • the embodiment according to claim 4 is advantageous, according to which the nozzles are further mounted pivotably in the height direction transverse to the transverse direction and driven.
  • This drive can be done in a known manner by means of the jacquard device.
  • the embodiment according to claim 5 wherein the blowing nozzles are connected to a further separate motor drive device for the height direction to align one of the blowing nozzles in the height direction at least approximately to the guide channel.
  • the weft insertion device has a plurality of nozzles arranged in the transverse direction and in the height direction.
  • the weaving machine is preferably designed so that the control device prevents in the event of a yarn breakage that the weft thread is movable into the pair of scissors to discharge the broken weft thread and draw a new section of the weft thread.
  • This second drive device in turn has a motor 36, which is connected via a further lever mechanism 38 with the blowing nozzles 22.
  • the first drive device 28 and the second drive device 34 are initially used to select one of the blowing nozzles 22 and align coaxially with a guide channel 40 of a guide device 42 which is connected to the reed 12 and serves to guide a registered weft thread 10.
  • Stafettendüsen 44 serve to advance the registered weft thread along the guide channel 40th
  • the first drive device 28 also serves to move the nozzles 22 against a stationary scissors 46, which is arranged in the region of the stop edge 14 of the web 16 such that the scissors 46 is practically effective only when the registered weft thread 10 practically at the Stop edge 14 is struck, as from the Figures 3 and 4 evident.

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

Abstract

The weaving machine comprises a pneumatic weft insertion. It is fitted with a weaving reed (12), wherein a guiding device (42) is associated with a guiding channel (40) for a weft thread (10). The guiding channel (10) comprising the weaving reed (12) can be pivoted between an insertion position and a stop position for the weft thread (10). Also, a fixed weft thread insertion device (8), which comprises at least two blast nozzles (22), is associated with the guiding channel (40) in the insertion position. A fixed blade (46) is used to cut the inserted weft thread (10). The blast nozzles (22) are pivotably mounted in the transversal direction (Q) counter to the blade (46) in order to improve the weaving machine and are connected by means of a motor drive device (28) in order to displace the blast nozzles (22) counter to the blade (46).

Description

Technisches GebietTechnical area

Die Erfindung betrifft eine Webmaschine mit pneumatischer Schusseintragung gemäss Oberbegriff des Anspruches 1.The invention relates to a loom with pneumatic weft insertion according to the preamble of claim 1.

Stand der TechnikState of the art

Eine Webmaschine mit pneumatischer Schusseintragung der eingangs genannten Art ist beispielsweise aus der WO 97/13901 bekannt. Die Webmaschine weist ein Webblatt auf, dem eine Führungsvorrichtung mit einem Führungskanal für einen Schussfaden zugeordnet ist. Der Führungskanal ist mit dem Webblatt zwischen einer Eintragstellung und einer Anschlagstellung für den Schussfaden schwenkbar. Ferner ist dem Führungskanal in der Eintragstellung eine ortsfeste Schusseintragvorrichtung mit Blasdüsen zugeordnet, welche also vom Webblatt unabhängig angeordnet ist und somit einerseits die Bewegung des Webblattes nicht beeinträchtigt und andererseits von den Bewegungen des Webblattes auch selbst nicht beeinträchtigt wird. Eine Schere dient zum Abschneiden des eingetragenen Schussfadens. Die Blasdüsen sind in Höhenrichtung verschwenkbar angeordnet und werden von einer Jacquardvorrichtung und einer Rückholfeder angetrieben. Mittels der Jacquardvorrichtung werden jeweils paarweise zwei Blasdüsen dem Führungskanal vorgelegt, wobei jeweils nur eine Blasdüse zum Einsatz kommt. Da die Schere den eingetragenen Schussfaden an der Eintragstelle an der Blasdüse abschneidet, muss der eingetragene Schussfaden bis zur Änschlagskante mittels einer Klemmvorrichtung gehalten werden. Die Klemmvorrichtung ist dem Webblatt zugeordnet und wird mit diesem bewegt. Die Klemmvorrichtung ist allerdings relativ kompliziert und störanfällig. Überdies ist die Höhensteuerung der Blasdüsen mittels der Jacquardvorrichtung ebenfalls relativ kompliziert und weist nur eine beschränkte Flexibilität und Genauigkeit auf.A loom with pneumatic weft insertion of the type mentioned is for example from the WO 97/13901 known. The weaving machine has a reed, which is assigned a guide device with a guide channel for a weft. The guide channel is pivotally connected to the reed between an entry position and a stop position for the weft. Further, the guide channel in the entry position associated with a stationary weft insertion device with nozzles, which is thus arranged independently from the reed and thus on the one hand does not affect the movement of the reed and on the other hand is not affected by the movements of the reed itself. A pair of scissors is used to cut off the inserted weft thread. The nozzles are arranged pivotably in the vertical direction and are driven by a jacquard device and a return spring. By means of the jacquard device in pairs two nozzles are presented to the guide channel, in each case only one tuyere is used. Since the scissors cut off the registered weft thread at the entry point at the tuyere, the registered weft thread must be held up to the Anschlagskante by means of a clamping device. The clamping device is associated with the reed and is moved with this. However, the clamping device is relatively complicated and prone to failure. Moreover, the height control of the blowing nozzles by means of the jacquard device is also relatively complicated and has only a limited flexibility and accuracy.

Aus der WO 00/63464 A1 ist eine Webmaschine mit pneumatischer Schusseintragung bekannt, bei der mehrere Blasdüsen einer Schusseintragungsvorrichtung mittels einer Antriebsvorrichtung in Höhenrichtung verschwenkbar angeordnet sind, um auswählbar diese auf den Führungskanal auszurichten. Nachteilig ist es, dass die Schusseintragungsvorrichtung an der Weblade und der Antrieb für die Düsen ortsfest angeordnet sind. Dies führt nicht nur zu einem komplizierten Antrieb, sondern durch die hin- und hergehende Bewegung der Weblade zusammen mit der Schusseintragungsvorrichtung auch zu erhöhten Massekraäften. Diese beeinträchtigen die Anschlagfrequenz. Die mit der Bewegung verbundenen Beschleunigungs- und Verzögerungskräfte wirken sich auch nachteilig auf die Standfestigkeit der Schusseintragungsvorrichtung aus. Zum Abschneiden des eingetragenen Schussfadens wird die gesamte Schusseintragungsvorrichtung mit der Weblade gegen eine Schneidvorrichtung bewegt. Eine Verschwenkbarkeit der Blasdüsen quer zur Höhenrichtung ist nicht vorhanden.From the WO 00/63464 A1 a weaving machine with pneumatic weft insertion is known in which a plurality of nozzles of a weft insertion device are arranged pivotably in the height direction by means of a drive device to selectively align them to the guide channel. The disadvantage is that the weft insertion device are fixedly arranged on the batten and the drive for the nozzles. This not only leads to a complicated drive, but also through the reciprocating movement of the sley together with the weft insertion device to increased Massekraäften. These affect the stroke frequency. The acceleration and deceleration forces associated with the movement also have an adverse effect on the stability of the weft insertion device. To cut off the inserted weft thread, the entire weft insertion device with the sley is moved against a cutting device. A pivoting of the nozzles across the height direction is not available.

Aus der DE 30 14 776 A1 ist eine weitere Webmaschine mit pneumatischer Schusseintragung bekannt, bei der mehrere Blasdüsen einer Schusseintragungsvorrichtung in Höhenrichtung und in Querrichtung verschwenkbar angeordnet sind, um eine auswählbare Blasdüse auf einen Führungskanal an der Weblade auszurichten. Die Schusseintragungsvorrichtung ist an der Weblade angeordnet, damit ergeben sich die bereits vorstehend aufgezeigten Nachteile. Bezüglich des konkreten Antriebes der Blasdüsen sind keine konkreten Angaben vorhanden und schon gar nicht ein etwaiges Zusammenwirken mit einer etwaigen Schneidvorrichtung.From the DE 30 14 776 A1 is another weaving machine with pneumatic weft insertion known in which a plurality of nozzles of a weft insertion device in the vertical direction and in the transverse direction are pivotally arranged to align a selectable nozzle on a guide channel on the batten. The weft insertion device is arranged on the batten, thus resulting in the above-mentioned disadvantages. With regard to the concrete drive of the nozzles are no specific information available and certainly not a possible interaction with any cutting device.

Aus der DE 32 04 007 A1 ist Schliesslich eine Webmaschine mit schwenkbaren Düsen bekannt, die jedoch nicht mit einer ortsfesten Schneidevorrichtung betreibbar ist.From the DE 32 04 007 A1 Finally, a weaving machine with pivoting nozzles is known, which however can not be operated with a stationary cutting device.

Darstellung der ErfindungPresentation of the invention

Aufgabe der Erfindung ist es, eine Webmaschine mit pneumatischem Schusseintrag der eingangs genannten Art zu verbessern. Dabei soll einerseits auf eine Klemmlösung wie in der WO 97/13901 verzichtet werden können, andererseits sollen die mit der aus der WO 00/63464 A1 verbundenen Nachteile der Überladung der beweglichen Weblade nicht in Kauf genommen werden.The object of the invention is to improve a loom with pneumatic weft insertion of the type mentioned. It should on the one hand on a clamping solution as in the WO 97/13901 can be dispensed with, on the other hand, with the from the WO 00/63464 A1 associated disadvantages of the overloading of the movable batten can not be accepted.

Die gestellte Aufgabe wird erfindungsgemäss gelöst durch die kennzeichnenden Merkmale des Anspruches 1. Dadurch, dass die Blasdüsen in Querrichtung gegen die Schere verschwenkbar gelagert sind und mit einer eigenen motorischen Antriebsvorrichtung verbunden sind, um die ausgewählte Blasdüse in exakter Weise gegen die Schere zu bewegen, wird der eingetragene Schussfaden praktisch erst dann geschnitten, wenn er in die Schere gelangt. Auf diese Weise ist es möglich, das Abschneiden des eingetragenen Schussfadens in den Anschlagbereich des Schussfadens zu legen, so dass eine Klemmvorrichtung nicht mehr erforderlich ist. Dies vereinfacht nicht nur die Webmaschine, sondern erhöht auch die Genauigkeit des Eintragens des Schussfadens.The object is achieved according to the invention by the characterizing features of claim 1. The fact that the nozzles are mounted pivotably in the transverse direction against the scissors and are connected to a separate motor drive device to move the selected nozzle in an exact manner against the scissors is the registered weft practically only then cut when he gets in the scissors. In this way it is possible to place the cutting of the inserted weft thread in the stop region of the weft thread, so that a clamping device is no longer required. This not only simplifies the loom but also increases the accuracy of picking the weft.

Vorteilhafte Ausgestaltungen der Webmaschine sind in den Ansprüchen 2 bis 9 beschrieben.Advantageous embodiments of the loom are described in claims 2 to 9.

Besonders vorteilhaft ist eine Ausgestaltung nach Anspruch 2, wonach die Antriebsvorrichtung so ausgebildet ist, dass das Schneiden eines eingetragenen Schussfadens im Bereich der Anschlagkante der Warenbahn erfolgt. Dabei hat der Schussfaden bereits eine sichere Lage eingenommen, so dass selbst nach dem Abschneiden ein Verschieben des Schussfadens nicht mehr möglich ist.Particularly advantageous is an embodiment according to claim 2, according to which the drive device is designed so that the cutting of a registered weft thread takes place in the region of the stop edge of the material web. The weft thread has already taken a safe position, so that even after cutting a shifting of the weft thread is no longer possible.

Die Genauigkeit und Betriebssicherheit der Webmaschine lässt sich verbessern, wenn nach Anspruch 3 die Antriebsvorrichtung so ausgebildet ist, dass die jeweils zum Einsatz kommende Blasdüse in Querrichtung mindestens annähernd koaxial zum Führungskanal ausgerichtet ist.The accuracy and reliability of the loom can be improved if, according to claim 3, the drive device is designed so that the respectively used blowing nozzle is aligned in the transverse direction at least approximately coaxial with the guide channel.

Insbesondere wenn in Höhenrichtung übereinander angeordnete Blasdüsen zum Einsatz kommen, ist die Ausbildung nach Anspruch 4 von Vorteil, wonach die Blasdüsen weiter in Höhenrichtung quer zur Querrichtung verschwenkbar gelagert und antreibbar sind. Dieser Antrieb kann in bekannter Weise mittels der Jacquardvorrichtung erfolgen. Vorteilhafter ist jedoch die Ausbildung nach Anspruch 5, wonach die Blasdüsen mit einer weiteren separaten motorischen Antriebsvorrichtung für die Höhenrichtung verbunden sind, um eine der Blasdüsen in Höhenrichtung mindestens annähernd zum Führungskanal auszurichten. Diese Ausgestaltung ist insbesondere dann von Vorteil, wenn gemäss Anspruch 6 die Schusseintragvorrichtung mehrere in Querrichtung und in Höhenrichtung angeordnete Blasdüsen aufweist.In particular, when in the height direction superimposed nozzles are used, the embodiment according to claim 4 is advantageous, according to which the nozzles are further mounted pivotably in the height direction transverse to the transverse direction and driven. This drive can be done in a known manner by means of the jacquard device. More advantageously, however, the embodiment according to claim 5, wherein the blowing nozzles are connected to a further separate motor drive device for the height direction to align one of the blowing nozzles in the height direction at least approximately to the guide channel. This embodiment is particularly advantageous if according to claim 6, the weft insertion device has a plurality of nozzles arranged in the transverse direction and in the height direction.

Für die motorische Antriebsvorrichtung sind beispielsweise gemäss Anspruch 7 ein Servomotor, ein Gleichstrommotor oder insbesondere ein AC-Motor geeignet.For the motor drive device according to claim 7, a servo motor, a DC motor or in particular an AC motor are suitable.

Gemäss Anspruch 8 weist die Webmaschine eine Steuervorrichtung für die mustergemässe Steuerung auf, die überdies mit jeder motorischen Antriebsvorrichtung zu deren Steuerung verbunden ist, sodass in Abhängigkeit von dem zu erstellenden gemusterten Gewebe Schussfäden unterschiedlicher Farbe oder Qualität zum Einsatz kommen können.According to claim 8, the loom on a control device for the pattern-based control, which is also connected to each motor drive device for the control, so depending on the patterned fabric to be created weft threads of different color or quality can be used.

Gemäss Anspruch 9 ist die Webmaschine vorzugsweise so ausgestaltet, dass die Steuervorrichtung im Fall eines Fadenbruches verhindert, dass der Schussfadens in die Schere bewegbar ist, um den gebrochenen Schussfaden auszutragen und einen neuen Abschnitt des Schussfadens nachzuziehen.According to claim 9, the weaving machine is preferably designed so that the control device prevents in the event of a yarn breakage that the weft thread is movable into the pair of scissors to discharge the broken weft thread and draw a new section of the weft thread.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Ausführungsbeispiele der Webmaschine werden nachfolgend anhand schematischer Zeichnungen näher beschrieben, dabei zeigen:

Figur 1
den Webbereich einer Webmaschine in Ansicht auf die Schussein- tragvorrichtung, beim Eintrag eines Schussfadens;
Figur 2
die Webmaschine der Figur 1 in Ansicht quer zur Höhenrichtung;
Figur 3
die Webmaschine der Figur 1 beim Anschlagen eines Schussfadens und dem Abschneiden des Schussfadens;
Figur 4
die Webmaschine der Figur 3 in Ansicht von oben.
Embodiments of the weaving machine are described in more detail below with reference to schematic drawings, in which:
FIG. 1
the weaving area of a loom in view of the weft insertion device when entering a weft thread;
FIG. 2
the loom of the FIG. 1 in view across the height direction;
FIG. 3
the loom of the FIG. 1 when striking a weft thread and cutting off the weft thread;
FIG. 4
the loom of the FIG. 3 in top view.

Wege zur Ausführung der ErfindungWays to carry out the invention

Die Figuren 1 bis 4 zeigen in schematischer Darstellung den Schusseintragbereich einer Webmaschine in schematischer Darstellung, wobei lediglich die für die vorliegende Erfindung wichtigen Teile gezeigt sind. Alle übrigen Merkmale der Webmaschine sind Stand der Technik.The FIGS. 1 to 4 show a schematic representation of the weft insertion region of a loom in a schematic representation, with only the important parts for the present invention are shown. All other features of the loom are state of the art.

Die Figuren 1 und 3 zeigen den Webbereich einer Webmaschine an dem Kettfäden 2 mittels einer Fachbildevorrichtung 4, beispielsweise einer Jacquardvorrichtung, zu einem offenen Webfach 6 bewegt werden, in das mittels einer Schusseintragvorrichtung 8 ein Schussfaden 10 eingetragen wird. Mittels eines Webblattes 12 wird der Schussfaden 10 an einer Anschlagkante 14 angeschlagen, sodass eine Warenbahn 16 entsteht.The FIGS. 1 and 3 show the weaving area of a weaving machine on which warp threads 2 are moved by means of a shedding device 4, for example a jacquard device, to an open shed 6 into which a weft thread 10 is inserted by means of a weft insertion device 8. By means of a reed 12, the weft thread 10 is struck at a stop edge 14, so that a web 16 is formed.

Die Schusseintragvorrichtung 8 ist pneumatisch ausgebildet und weist einen Düsenblock 20 auf, der im vorliegenden Beilspiel acht Blasdüsen 22 aufweist, die gemäss Figur 4 in Querrichtung Q paarweise angeordnet sind, wobei gemäss Figur 2 vier Paare solcher Blasdüsen in Höhenrichtung H übereinander angeordnet sind. Der Düsenblock 22 ist über eine vertikale Achse 24 in Querrichtung Q verschwenkbar angeordnet und um eine horizontale Achse 26 in Höhenrichtung H verschwenkbar gelagert. Eine erste Antriebsvorrichtung 28 enthält einen Motor 30, der über ein Hebelgetriebe 32 mit den Blasdüsen 22 verbunden ist. In analoger Weise ist eine zweite Antriebsvorrichtung 34 für das Verschwenken der Blasdüsen 22 in Höhenrichtung H angeordnet. Diese zweite Antriebsvorrichtung weist wiederum einen Motor 36 auf, der über ein weiteres Hebelgetriebe 38 mit den Blasdüsen 22 verbunden ist. Die erste Antriebsvorrichtung 28 und die zweite Antriebsvorrichtung 34 dienen zunächst dazu, eine der Blasdüsen 22 auszuwählen und koaxial mit einem Führungskanal 40 einer Führungsvorrichtung 42 auszurichten, die mit dem Webblatt 12 verbunden ist und zur Führung eines eingetragenen Schussfadens 10 dient. Stafettendüsen 44 dienen zur Fortbewegung des eingetragenen Schussfadens längs des Führungskanals 40.The weft insertion device 8 is pneumatically formed and has a nozzle block 20, which has eight blowing nozzles 22 in the present supplement game, according to FIG. 4 are arranged in pairs in the transverse direction Q, wherein according to Figure 2, four pairs of such nozzles in the height direction H are arranged one above the other. The nozzle block 22 is arranged pivotable about a vertical axis 24 in the transverse direction Q and pivotally mounted about a horizontal axis 26 in the height direction H. A first drive device 28 includes a motor 30 which is connected via a lever gear 32 with the blowing nozzles 22. In an analogous manner, a second drive device 34 for pivoting the blowing nozzles 22 in the height direction H is arranged. This second drive device in turn has a motor 36, which is connected via a further lever mechanism 38 with the blowing nozzles 22. The first drive device 28 and the second drive device 34 are initially used to select one of the blowing nozzles 22 and align coaxially with a guide channel 40 of a guide device 42 which is connected to the reed 12 and serves to guide a registered weft thread 10. Stafettendüsen 44 serve to advance the registered weft thread along the guide channel 40th

Die erste Antriebsvorrichtung 28 dient überdies dazu, die Blasdüsen 22 gegen eine ortsfeste Schere 46 zu bewegen, die im Bereich der Anschlagkante 14 der Warenbahn 16 angeordnet ist derart, dass die Schere 46 praktisch erst dann wirksam wird, wenn der eingetragene Schussfaden 10 praktisch an der Anschlagkante 14 angeschlagen ist, wie aus den Figuren 3 und 4 hervorgeht.The first drive device 28 also serves to move the nozzles 22 against a stationary scissors 46, which is arranged in the region of the stop edge 14 of the web 16 such that the scissors 46 is practically effective only when the registered weft thread 10 practically at the Stop edge 14 is struck, as from the Figures 3 and 4 evident.

Eine mit der ersten und mit der zweiten Antriebsvorrichtung 28,34 verbundene Steuervorrichtung 50 dient zur mustergemässen Steuerung der Webmaschine und damit auch der ersten Antriebsvorrichtung 28 und der zweiten Antriebsvorrichtung 34, um jeweils die für das zu erstellende Muster erforderliche Blasdüse 22 auszuwählen, mittels der der für das Muster erforderliche Schussfaden 10 vorgelegt wird. Überdies dient die Steuervorrichtung auch dazu, die Antriebsvorrichtungen 28, 34 so zu steuern, dass der eingetragene Schussfaden der Schere 46 exakt vorgelegt wird.A control device 50 connected to the first and the second drive device 28, 34 serves to control the loom in accordance with the pattern, and thus also the first drive device 28 and the second drive device 34 in order to select the blow nozzle 22 required for the pattern to be created, by means of FIG weft thread 10 required for the pattern is presented. Moreover, the control device also serves to drive the drive devices 28, 34 to control so that the registered weft of the scissors 46 is accurately presented.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

HH
Höhenrichtungheight direction
QQ
Querrichtungtransversely
22
Kettfadenwarp
44
FachbildevorrichtungShedding device
66
Webfachshed
88th
SchusseintragvorrichtungWeft insertion device
1010
Schussfadenweft
1212
Webblattreed
1414
Anschlagkantestop edge
1616
Warenbahnweb
2020
Düsenblocknozzle block
2222
Blasdüsennozzles
2424
vertikale Achsevertical axis
2626
horizontale Achsehorizontal axis
2828
erste Antriebsvorrichtungfirst drive device
3030
Motorengine
3232
Hebelgetriebelever mechanism
3434
zweite Antriebsvorrichtungsecond drive device
3636
Motorengine
3838
Hebelgetriebelever mechanism
4040
Führungskanalguide channel
4242
Führungsvorrichtungguiding device
4444
Stafettendüserelay nozzle
4646
Scherescissors
5050
Steuervorrichtungcontrol device

Claims (9)

  1. A weaving machine comprising pneumatic weft insertion, with a reed (12) which is assigned a guide device (42) with a guide duct (40) for a weft thread (10), the guide duct (40) being pivotable, together with the reed (12), between an insertion position and a beating-up position for the weft thread (10), furthermore the guide duct (40) being assigned, in the insertion position, a fixed weft insertion device (8) with at least two blow nozzles (22), and also with fixedly arranged shears (46) for cutting off the inserted weft thread (10), characterized in that the blow nozzles (22) are mounted pivotably in the transverse direction (Q) toward the shears (46) and are connected to a motor drive device (28), in order to move the blow nozzles (22) toward the shears (46).
  2. The weaving machine as claimed in claim 1, characterized in that the drive device (28) is designed such that the cutting of an inserted weft thread (10) takes place in the region of the beating-up edge (14) of the cloth web (16).
  3. The weaving machine as claimed in claim 1 or 2, characterized in that the drive device (28) is designed for the at least approximately coaxial alignment in each case of a blow nozzle (22) in the transverse direction (Q) with respect to the guide duct (40).
  4. The weaving machine as claimed in one of claims 1 to 3, characterized in that the blow nozzles (22) are mounted pivotably and can be driven further in the vertical direction (H) transversely to the transverse direction (Q).
  5. The weaving machine as claimed in claim 4, characterized in that the blow nozzles (22) are connected to a further motor drive device (34) for the vertical direction (H), in order to align one of the blow nozzles (22) with the guide duct (40) in the vertical direction (H).
  6. The weaving machine as claimed in one of claims 1 to 5, characterized in that the weft insertion device (8) has a plurality of blow nozzles (22) arranged in the transverse direction (Q) and in the vertical direction (H).
  7. The weaving machine as claimed in one of claims 1 to 6, characterized in that the motor drive devices (28, 34) have in each case a servomotor, direct-current motor or AC motor.
  8. The weaving machine as claimed in one of claims 1 to 7, characterized in that it has a control device (50) for pattern control, which is connected to each motor drive device (28, 34) for the control of the latter.
  9. The weaving machine as claimed in one of claims 1 to 8, characterized in that the control device (50) is designed such that, in the event of a thread break, the weft thread (10) is not movable into the shears (46).
EP06741665A 2005-10-05 2006-06-23 Weaving machine comprising pneumatic weft insertion Not-in-force EP1943379B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH16032005 2005-10-05
PCT/CH2006/000340 WO2007038880A1 (en) 2005-10-05 2006-06-23 Weaving machine comprising pneumatic weft insertion

Publications (2)

Publication Number Publication Date
EP1943379A1 EP1943379A1 (en) 2008-07-16
EP1943379B1 true EP1943379B1 (en) 2009-03-11

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06741665A Not-in-force EP1943379B1 (en) 2005-10-05 2006-06-23 Weaving machine comprising pneumatic weft insertion

Country Status (11)

Country Link
US (1) US20090272456A1 (en)
EP (1) EP1943379B1 (en)
JP (1) JP2009510279A (en)
KR (1) KR20080057249A (en)
CN (1) CN101283133A (en)
AT (1) ATE425285T1 (en)
BR (1) BRPI0616810A2 (en)
DE (1) DE502006003130D1 (en)
ES (1) ES2320270T3 (en)
TW (1) TW200714762A (en)
WO (1) WO2007038880A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116575170A (en) * 2023-07-12 2023-08-11 江苏友诚数控科技有限公司 Air current weft insertion beating-up mechanism for weaving thick fabric

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US2662556A (en) * 1949-04-02 1953-12-15 Ceskoslovenske Textilni Zd Y Device for weaving of fabrics
DE2048934C3 (en) * 1969-10-08 1980-08-28 Elitex, Koncern Textilniho Strojirenstvi, Reichenberg (Tschechoslowakei) Jet loom
FR2064236B1 (en) * 1969-10-10 1979-03-26
CS165002B1 (en) * 1970-09-18 1975-11-28
US4178971A (en) * 1976-08-24 1979-12-18 Vyzkumny A Vyvojovy Ustav Zavodu Vseobecneho Strojirenstvi Method of and apparatus for inserting weft threads into a jet loom
NL7903273A (en) * 1979-04-25 1980-10-28 Rueti Te Strake Bv DEVICE FOR LAUNCHING SEQUENCE WIDE LENGTHS ON A SPOOLLESS WEAVING MACHINE.
FR2497240A1 (en) * 1980-12-30 1982-07-02 Saurer Diederichs Sa MOBILE NOZZLE DEVICE FOR PNEUMATIC WEFT INSERTION ON A SHUTTERLESS WEAVING MACHINE
DE3204007A1 (en) * 1982-02-05 1983-08-11 Guenne Webmaschf Gmbh Device and method for injecting differently coloured weft yarns in air-jet weaving machines
EP0162175B1 (en) * 1984-05-21 1987-11-25 GebràœDer Sulzer Aktiengesellschaft Weft insertion nozzle for air jet looms
CH671412A5 (en) * 1986-09-10 1989-08-31 Textilma Ag
US4998214A (en) * 1989-04-03 1991-03-05 Unisys Corp. Apparatus for line imaging
US5295515A (en) * 1991-02-25 1994-03-22 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Apparatus for controlling weft insertion in jet loom
US5632187A (en) * 1991-07-18 1997-05-27 Textilma Ag Process and device for cutting a web of textile fabric
DE59509248D1 (en) * 1995-10-10 2001-06-13 Textilma Ag WEAVING MACHINE WITH PNEUMATIC WIFE ENTRY
CA2280088C (en) * 1997-04-09 2004-06-08 Textilma Ag Weaving loom with pneumatic weft thread insertion
CZ290564B6 (en) * 1997-12-23 2002-08-14 Vúts Liberec A. S. Air-operated weaving machine with a device for controlling blast nozzles
DE19802910C2 (en) * 1998-01-27 2000-08-03 Dornier Gmbh Lindauer Loom, in particular with pneumatic weft insertion
BE1012620A3 (en) * 1999-04-20 2001-01-09 Picanol Nv DEVICE AND METHOD for the insertion of a weft thread in a weaving machine.
JP2001234451A (en) * 2000-02-22 2001-08-31 Tsudakoma Corp Method and apparatus for driving selvedge forming machine in loom

Also Published As

Publication number Publication date
TW200714762A (en) 2007-04-16
JP2009510279A (en) 2009-03-12
DE502006003130D1 (en) 2009-04-23
ES2320270T3 (en) 2009-05-20
WO2007038880A1 (en) 2007-04-12
KR20080057249A (en) 2008-06-24
US20090272456A1 (en) 2009-11-05
ATE425285T1 (en) 2009-03-15
BRPI0616810A2 (en) 2011-07-05
EP1943379A1 (en) 2008-07-16
CN101283133A (en) 2008-10-08

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