EP1428918B1 - Auxiliary nozzle for a weaving loom - Google Patents

Auxiliary nozzle for a weaving loom Download PDF

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Publication number
EP1428918B1
EP1428918B1 EP04004657A EP04004657A EP1428918B1 EP 1428918 B1 EP1428918 B1 EP 1428918B1 EP 04004657 A EP04004657 A EP 04004657A EP 04004657 A EP04004657 A EP 04004657A EP 1428918 B1 EP1428918 B1 EP 1428918B1
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EP
European Patent Office
Prior art keywords
bulge
upper edge
point
hollow needle
loom
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04004657A
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German (de)
French (fr)
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EP1428918A3 (en
EP1428918A2 (en
Inventor
Jozef Peeters
Joseph Verhulst
Jean Marie Bamelis
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Picanol NV
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Picanol NV
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Publication of EP1428918A2 publication Critical patent/EP1428918A2/en
Publication of EP1428918A3 publication Critical patent/EP1428918A3/en
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Publication of EP1428918B1 publication Critical patent/EP1428918B1/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
    • 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
    • D03D47/302—Auxiliary nozzles

Definitions

  • the invention relates to an auxiliary nozzle for a loom according to the preamble of claim 1.
  • auxiliary nozzles are from the US 5 020 574 known. They support the introduction of a weft thread in the shed of a loom. For this purpose, a plurality of such auxiliary nozzles are arranged distributed over the width of the batten, which each provide a fluid flow, which supports the transport of a blown into a weft insertion channel of a reed weft thread.
  • the auxiliary nozzles are arranged so that the mounted in a wall below the tip blowing opening or Blasöffnuhgen are aligned in a certain position to the upper wall and the rear wall of the weft insertion channel.
  • the fluid stream flowing out of the blowing opening or openings is directed essentially in the longitudinal direction of the weft insertion channel and has a component obliquely upwards.
  • the auxiliary nozzles move with each weft insertion through the lower warp thread level into the shed. It has been found that warp yarns, consisting of several thin individual filaments and only slightly twisted, fray or fray at the points where the auxiliary nozzles move in and out of the shed through the lower warp thread plane. This fraying or fraying occurs especially in filament yarns, in which thin plastic filaments are substantially parallel to each other and are welded together at regular intervals. In this case, a fabric is woven which, at the points where the auxiliary nozzles are moved through the lower warp thread plane, has a different appearance than the rest of the fabric. In the area of the auxiliary nozzles, these warp threads receive a larger volume than the other Velcro threads, since the thin filaments are no longer arranged exactly next to each other.
  • An auxiliary nozzle with bulge according to the preamble of claim 1 is made CH-A-650 035 known.
  • the invention has the object of providing an auxiliary nozzle of the type mentioned in such a way that the risk of damaging warp threads is reduced.
  • the loom shown in Fig. 1 has a reed 3, which consists of a plurality of fins, each having a cutout to form a U-shaped weft insertion channel 4.
  • weft threads 1, 2 are entered into a shed, which is formed of warp threads in an upper and a lower warp thread plane.
  • the weft threads 1 or 2 are each blown by a Hauptblasdüse 5, 6.
  • the further transport of the weft threads 1 or 2 is supported by air jets 7, the auxiliary nozzles 8 blow into the weft insertion channel 4.
  • the air jets 7 are directed substantially in the longitudinal direction of the weft insertion channel 4 and have a slightly obliquely upwardly directed component, which is directed to the upper wall and the rear wall of the weft insertion channel 4 on the weft threads 1, 2.
  • the reed 3, the Hauptblasdüsen 5, 6 and the holder 9 of the auxiliary nozzles 8 are attached to a shop profile 10 of a sley, as for example from US 50 20 574 is known.
  • the shop profile 10 is fastened, for example, via stilts to a shaft, not shown, of the sley, which is driven to reciprocate.
  • a shed is formed from a warp upper plane and a warp lower plane 18, which converge in a stop line at which the weft threads are struck by the reed 3, so that a fabric is formed.
  • the striking of a weft thread is carried by the rear wall of the U-shaped weft insertion channel 4, which belongs to the central part of the reed.
  • the upper part of the lamellae of the reed 3 forms an upper wall of the guide channel 4.
  • the lower wall of the guide channel 4 is formed by the lower part of the lamellae of the reed 3.
  • the auxiliary nozzles 8 are designed as a hollow needle 11, which is provided near its tip in a side wall with an outflow opening 25.
  • the hollow needle 11 of the auxiliary nozzle 8 is provided in the region of the tip with a lateral bulge 13, which faces the reed 3, when the auxiliary nozzle 8 is attached to the batten.
  • the auxiliary nozzle 8 is provided with an upper edge 28 which extends into the region of the bulge 13.
  • the substantially rectilinear upper edge 28 connects via curves with a relatively large radius of the hollow needle 11 and the bulge 13 at.
  • the auxiliary nozzles 8 are moved out of the shed by means of the movement of the sley for each weft insertion between the warp threads of the warp thread plane 18 into the shed and after striking the weft thread through the warp thread plane 18 therethrough.
  • the angle of the upper edge 28 to the longitudinal axis 32 and / or the shape of the hollow needle 11 formed as auxiliary nozzles 8 is suitably adapted to the material of the processed warp threads so that the warp threads are not damaged in the penetration into the shed, not be frayed or chipped , Preferably, this angle is in the order of 70 ° to 110 °.
  • the cross-section of the cavity of the hollow needle 11 of the auxiliary nozzle 8 is less in the region of the beginning of the bulge 13 than in the preceding section.
  • the wall thickness of the auxiliary nozzle 8 is greater in the region of the outflow opening 25 than in the remaining region of the tip 12. Due to the greater wall thickness, it is possible to better guide the exiting fluid jet in the individual openings of the outflow opening, since the length of the openings is greater. This can also limit the risk that an air jet 7 (FIG. 1) will damage the warp threads.
  • the individual openings of the discharge opening 25 are arranged closer to the upper edge 28 of the auxiliary nozzle 8 and distributed not on an approximately circular surface, but on three superimposed rows.
  • the individual openings also extend into the region of the bulge 13, so that the same number of individual openings (in the exemplary embodiment 19 individual openings) can be accommodated closer to the upper edge 28, ie the same overall cross section for the outflow opening 25 is achieved. Since the outflow opening 25 in this embodiment has previously passed completely through the lower warp thread plane 18 is, can be started earlier with the outflow. Since, in the opposite movement, the outflow opening 25 is moved out of the shed correspondingly later through the lower warp thread plane 18, the outflow from the auxiliary nozzle 8 can be extended.
  • the auxiliary nozzle 8 according to the invention can be used not only for blowing out an air jet 7, but rather also for another fluid, with which a weft thread is transported.
  • the fluid may be, for example, a liquid such as water, so that a liquid jet on the Weft threads are directed.
  • a gas as a fluid or a gas in which a liquid is sprayed or atomized, for example an air jet with sprayed water.

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

Abstract

The auxiliary jet (8), for the insertion of a weft through the shed of a jet loom, is a hollow needle (11) with a bulge (13) at the point (12). The bulge (13) is aligned towards the reed, when the auxiliary jet (8) is installed in the loom. The bulge (13) lies at the wall of the hollow needle (11) in a stepless configuration. The bulge (13) has a wall (27) which is aligned with the wall (26) with the outflow opening(s) (25). The interior of the hollow needle (11) is expanded at the bulge (13), and preferably narrows at right angles to it. At least the wall (26) with the outflow openings (25) has an increased thickness. The outflow opening(s) (25) is (are) structured as jets. The point (12) of the hollow needle (11) has a straight upper edge (28), extending to the bulge (13) zone, and is aligned at an angle of 70-110degrees to the longitudinal axis (32) of the hollow needle (11). The highest point (30) of the upper edge (28) is at the bulge (13). When the auxiliary jet (8) is installed in the loom, the upper edge (28) of the point (12) lies along the longitudinal line of the warps, or is at a tangent to a circle round the sley axis. When in position, the upper edge (28) of the auxiliary jet point (12) is close to the lower section of the U-shaped weft insertion channel at the reed. When the auxiliary jet (8) is installed, the bulge (13) is at a gap of not more than 3 mm from the lower section of the U-shaped weft insertion channel. In position, the upper edge (28) of the point (12) penetrates into the shed formed by the opened warps, at an acute angle (H) to the lower warp plane (18), and the section of the upper edge (28) away from the reed is in contact with the other warp plane (18). The upper edge (28) of the point (12) has a length which is greater than the gap between welded points in a weft yarn composed of a number of single filaments.

Description

Die Erfindung betrifft eine Hilfsdüse für eine Webmaschine nach dem Oberbegriff des Patentanspruches 1.The invention relates to an auxiliary nozzle for a loom according to the preamble of claim 1.

Derartige Hilfsdüsen sind aus der US 5 020 574 bekannt. Sie unterstützen das Einbringen eines Schussfadens in das Webfach einer Webmaschine. Hierzu sind mehrere derartiger Hilfsdüsen über die Breite der Weblade verteilt angeordnet, die jeweils einen Fluidstrom liefern, der den Transport eines in ein Schusseintragskanal eines Webblattes eingeblasenen Schussfadens unterstützt. Die Hilfsdüsen sind dabei so angeordnet, dass die in einer Wandung unterhalb der Spitze angebrachte Blasöffnung oder Blasöffnuhgen in einer bestimmten Position zur oberen Wandung und zur Rückwand des Schusseintragskanals ausgerichtet sind. Der aus der oder den Blasöffnungen ausströmende Fluidstrom ist im wesentlichen in Längsrichtung des Schusseintragskanals gerichtet und weist eine Komponente schräg nach oben auf.Such auxiliary nozzles are from the US 5 020 574 known. They support the introduction of a weft thread in the shed of a loom. For this purpose, a plurality of such auxiliary nozzles are arranged distributed over the width of the batten, which each provide a fluid flow, which supports the transport of a blown into a weft insertion channel of a reed weft thread. The auxiliary nozzles are arranged so that the mounted in a wall below the tip blowing opening or Blasöffnuhgen are aligned in a certain position to the upper wall and the rear wall of the weft insertion channel. The fluid stream flowing out of the blowing opening or openings is directed essentially in the longitudinal direction of the weft insertion channel and has a component obliquely upwards.

Beim Weben bewegen sich die Hilfsdüsen bei jedem Schussfadeneintrag durch die untere Kettfadenebene hindurch in das Webfach. Es ist festgestellt worden, dass Kettfäden, die aus mehreren dünnen Einzelfilamenten bestehen und nur wenig gedreht sind, an den Stellen ausfasern oder ausfransen, an denen die Hilfsdüsen durch die untere Kettfadenebene hindurch in das Webfach hinein- und wieder hinsausbewegt werden. Dieses Ausfasern oder Ausfransen tritt vor allem bei Filamentfäden auf, bei welchen dünne Kunststofffilamente im wesentlichen parallel zueinander verlaufen und in regelmäßigen Abständen miteinander verschweißt sind. In diesem Fall wird ein Gewebe gewebt, das an den Stellen, an denen die Hilfsdüsen durch die untere Kettfadenebene hindurchbewegt werden, ein anderes Aussehen hat als das übrige Gewebe. Im Bereich der Hilfsdüsen erhalten diese Kettfäden ein größeres Volumen als die übrigen Klettfäden, da die dünnen Filamente nicht mehr exakt nebeneinander angeordnet sind.During weaving, the auxiliary nozzles move with each weft insertion through the lower warp thread level into the shed. It has been found that warp yarns, consisting of several thin individual filaments and only slightly twisted, fray or fray at the points where the auxiliary nozzles move in and out of the shed through the lower warp thread plane. This fraying or fraying occurs especially in filament yarns, in which thin plastic filaments are substantially parallel to each other and are welded together at regular intervals. In this case, a fabric is woven which, at the points where the auxiliary nozzles are moved through the lower warp thread plane, has a different appearance than the rest of the fabric. In the area of the auxiliary nozzles, these warp threads receive a larger volume than the other Velcro threads, since the thin filaments are no longer arranged exactly next to each other.

Eine Hilfsdüse mit Ausbauchung nach dem Oberbegriff des Anspruchs 1 ist aus CH-A-650035 bekannt.An auxiliary nozzle with bulge according to the preamble of claim 1 is made CH-A-650 035 known.

Der Erfindung liegt die Aufgabe zugrunde, eine Hilfsdüse der eingangs genannten Art so auszubilden, dass die Gefahr des Beschädigens von Kettfäden verringert ist.The invention has the object of providing an auxiliary nozzle of the type mentioned in such a way that the risk of damaging warp threads is reduced.

Diese Aufgabe wird durch den Patentanspruch 1 gelöst.This object is solved by the patent claim 1.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung der in den Zeichnungen dargestellten Ausführungsformen und den Unteransprüchen.

Fig. 1
zeigt in schematischer Darstellung einen Teil einer Luftdüsenwebmaschine mit mehreren Hilfsdüsen,
Fig. 2
eine Ansicht einer erfindungsgemäßen Ausführungsform einer Hilfsdüse.
Further features and advantages of the invention will become apparent from the following description of the embodiments illustrated in the drawings and the dependent claims.
Fig. 1
shows a schematic representation of part of an air jet loom with several auxiliary nozzles,
Fig. 2
a view of an embodiment of an auxiliary nozzle according to the invention.

Die in Fig. 1 dargestellte Webmaschine besitzt ein Webblatt 3, das aus einer Vielzahl von Lamellen besteht, die jeweils einen Ausschnitt aufweisen, um einen U-förmigen Schusseintragskanal 4 zu bilden. In diesem Schusseintragungskanal 4 werden Schussfäden 1, 2 in ein Webfach eingetragen, das aus Kettfäden in einer oberen und einer unteren Kettfadenebene gebildet wird. Die Schussfäden 1 oder 2 werden jeweils von einer Hauptblasdüse 5, 6 eingeblasen. Der Weitertransport der Schussfäden 1 oder 2 wird durch Luftstrahlen 7 unterstützt, die Hilfsdüsen 8 in den Schusseintragskanal 4 einblasen. Die Luftstrahlen 7 sind im wesentlichen in Längsrichtung des Schusseintragskanals 4 gerichtet und besitzen eine leicht schräg nach oben gerichtete Komponente, die zu der oberen Wandung und der Rückwand des Schusseintragskanals 4 auf die Schussfäden 1, 2 gerichtet ist. Das Webblatt 3, die Hauptblasdüsen 5, 6 und die Halter 9 der Hilfsdüsen 8 sind an einem Ladenprofil 10 einer Weblade befestigt, wie das beispielsweise aus der US 50 20 574 bekannt ist. Das Ladenprofil 10 ist beispielsweise über Ladenstelzen an einer nicht dargestellten Welle der Weblade befestigt, die zu hin- und hergehender Bewegung angetrieben wird.The loom shown in Fig. 1 has a reed 3, which consists of a plurality of fins, each having a cutout to form a U-shaped weft insertion channel 4. In this weft insertion channel 4 weft threads 1, 2 are entered into a shed, which is formed of warp threads in an upper and a lower warp thread plane. The weft threads 1 or 2 are each blown by a Hauptblasdüse 5, 6. The further transport of the weft threads 1 or 2 is supported by air jets 7, the auxiliary nozzles 8 blow into the weft insertion channel 4. The air jets 7 are directed substantially in the longitudinal direction of the weft insertion channel 4 and have a slightly obliquely upwardly directed component, which is directed to the upper wall and the rear wall of the weft insertion channel 4 on the weft threads 1, 2. The reed 3, the Hauptblasdüsen 5, 6 and the holder 9 of the auxiliary nozzles 8 are attached to a shop profile 10 of a sley, as for example from US 50 20 574 is known. The shop profile 10 is fastened, for example, via stilts to a shaft, not shown, of the sley, which is driven to reciprocate.

Ein Webfach wird aus einer oberen Kettfadenebene und einer unteren Kettfadenebene 18 gebildet, die in einer Anschlaglinie zusammenlaufen, an der die Schussfäden von dem Webblatt 3 angeschlagen werden, so dass ein Gewebe gebildet wird. Das Anschlagen eines Schussfadens erfolgt durch die Rückwand des U-förmigen Schusseintragskanals 4, die zu dem Mittelteil des Webblattes gehört. Das Oberteil der Lamellen des Webblattes 3 bildet eine obere Wand des Führungskanals 4. Die untere Wand des Führungskanals 4 wird von dem unteren Teil der Lamellen des Webblattes 3 gebildet.A shed is formed from a warp upper plane and a warp lower plane 18, which converge in a stop line at which the weft threads are struck by the reed 3, so that a fabric is formed. The striking of a weft thread is carried by the rear wall of the U-shaped weft insertion channel 4, which belongs to the central part of the reed. The upper part of the lamellae of the reed 3 forms an upper wall of the guide channel 4. The lower wall of the guide channel 4 is formed by the lower part of the lamellae of the reed 3.

Die Hilfsdüsen 8 sind als Hohlnadel 11 gestaltet, die nahe ihrer Spitze in einer Seitenwand mit einer Ausströmöffnung 25 versehen ist. Die Hohlnadel 11 der Hilfsdüse 8 ist im Bereich der Spitze mit einer seitlichen Ausbauchung 13 versehen, die dem Webblatt 3 zugewandt ist, wenn die Hilfsdüse 8 an der Weblade angebracht ist.The auxiliary nozzles 8 are designed as a hollow needle 11, which is provided near its tip in a side wall with an outflow opening 25. The hollow needle 11 of the auxiliary nozzle 8 is provided in the region of the tip with a lateral bulge 13, which faces the reed 3, when the auxiliary nozzle 8 is attached to the batten.

Die Hilfsdüse 8 ist mit einer Oberkante 28 versehen, die sich in den Bereich der Ausbauchung 13 erstreckt. Die im wesentlichen geradlinige Oberkante 28 schließt über Rundungen mit relativ großem Radius an die Hohlnadel 11 und die Ausbauchung 13 an.The auxiliary nozzle 8 is provided with an upper edge 28 which extends into the region of the bulge 13. The substantially rectilinear upper edge 28 connects via curves with a relatively large radius of the hollow needle 11 and the bulge 13 at.

Die Hilfsdüsen 8 werden mittels der Bewegung der Weblade für jeden Schussfadeneintrag zwischen den Kettfäden der Kettfadenebene 18 hindurch in das Webfach und nach dem Anschlagen des Schussfadens durch die Kettfadenebene 18 hindurch wieder aus dem Webfach herausbewegt.The auxiliary nozzles 8 are moved out of the shed by means of the movement of the sley for each weft insertion between the warp threads of the warp thread plane 18 into the shed and after striking the weft thread through the warp thread plane 18 therethrough.

Der Winkel der Oberkante 28 zur Längsachse 32 und/oder die Gestalt der als Hohlnadel 11 ausgebildeten Hilfsdüsen 8 wird zweckmäßigerweise auf das Material der verarbeiteten Kettfäden so abgestimmt, dass bei dem Eindringen in das Webfach die Kettfäden nicht beschädigt werden, d.h.nicht ausgefasert oder ausgefranzt werden. Bevorzugt liegt dieser Winkel in der Größenordnung von 70° bis 110°.The angle of the upper edge 28 to the longitudinal axis 32 and / or the shape of the hollow needle 11 formed as auxiliary nozzles 8 is suitably adapted to the material of the processed warp threads so that the warp threads are not damaged in the penetration into the shed, not be frayed or chipped , Preferably, this angle is in the order of 70 ° to 110 °.

Der Querschnitt des Hohlraums der Hohlnadel 11 der Hilfsdüse 8 ist im Bereich des Beginns der Ausbauchung 13 geringer als in dem vorausgehenden Abschnitt. Die Wandstärke der Hilfsdüse 8 ist im Bereich der Ausströmöffnung 25 größer als in dem übrigen Bereich der Spitze 12. Aufgrund der größeren Wandstärke ist es möglich, den austretenden Fluidstrahl in den Einzelöffnungen der Ausströmöffnung besser zu führen, da die Länge der Öffnungen größer ist. Auch damit kann die Gefahr eingeschränkt werden, dass ein Luftstrahl 7 (Fig. 1) die Kettfäden beschädigt.The cross-section of the cavity of the hollow needle 11 of the auxiliary nozzle 8 is less in the region of the beginning of the bulge 13 than in the preceding section. The wall thickness of the auxiliary nozzle 8 is greater in the region of the outflow opening 25 than in the remaining region of the tip 12. Due to the greater wall thickness, it is possible to better guide the exiting fluid jet in the individual openings of the outflow opening, since the length of the openings is greater. This can also limit the risk that an air jet 7 (FIG. 1) will damage the warp threads.

Es ist ohne weiteres möglich, den Hohlraum innerhalb der Hilfsdüse 8 strömungsgünstig zu gestalten, d.h. günstig für einen Luftstrahl 7 aus der Ausströmöffnung 25.It is readily possible to make the cavity within the auxiliary nozzle 8 streamlined, i. favorable for an air jet 7 from the outflow opening 25th

Bei der Ausführungsform nach Fig. 2 sind die Einzelöffnungen der Ausströmöffnung 25 näher zur Oberkante 28 der Hilfsdüse 8 angeordnet und nicht auf eine etwa kreisförmige Fläche, sondern auf drei übereinander angeordnete Reihen verteilt. Die Einzelöffnungen erstrecken sich dabei auch in den Bereich der Ausbauchung 13, so dass die gleiche Anzahl von Einzelöffnungen (bei dem Ausführungsbeispiel 19 Einzelöffnungen) näher zu der Oberkante 28 untergebracht werden kann, d.h. der gleiche Gesamtquerschnitt für die Ausströmöffnung 25 erreicht wird. Da die Ausströmöffnung 25 bei dieser Ausführungsform früher vollständig durch die untere Kettfadenebene 18 hindurchgetreten ist, kann früher mit dem Ausströmen begonnen werden. Da bei der entgegengerichteten Bewegung die Ausströmöffnung 25 entsprechend später durch die unteren Kettfadenebene 18 aus dem Webfach herausbewegt wird, kann das Ausströmen aus der Hilfsdüse 8 verlängert werden.In the embodiment of Fig. 2, the individual openings of the discharge opening 25 are arranged closer to the upper edge 28 of the auxiliary nozzle 8 and distributed not on an approximately circular surface, but on three superimposed rows. The individual openings also extend into the region of the bulge 13, so that the same number of individual openings (in the exemplary embodiment 19 individual openings) can be accommodated closer to the upper edge 28, ie the same overall cross section for the outflow opening 25 is achieved. Since the outflow opening 25 in this embodiment has previously passed completely through the lower warp thread plane 18 is, can be started earlier with the outflow. Since, in the opposite movement, the outflow opening 25 is moved out of the shed correspondingly later through the lower warp thread plane 18, the outflow from the auxiliary nozzle 8 can be extended.

Die erfindungsgemäße Hilfsdüse 8 kann nicht nur zum Ausblasen eines Luftstrahls 7 eingesetzt werden, sondern vielmehr auch bei einem anderen Fluid, mit welchem ein Schussfaden transportiert wird. Das Fluid kann beispielsweise eine Flüssigkeit wie Wasser sein, so dass ein Flüssigkeitsstrahl auf die Schussfäden gerichtet werden. Ebenso ist es möglich, ein Gas als Fluid zu verwenden oder ein Gas, in welchem eine Flüssigkeit versprüht oder vernebelt wird, beispielsweise ein Luftstrahl mit versprühtem Wasser.The auxiliary nozzle 8 according to the invention can be used not only for blowing out an air jet 7, but rather also for another fluid, with which a weft thread is transported. The fluid may be, for example, a liquid such as water, so that a liquid jet on the Weft threads are directed. It is also possible to use a gas as a fluid or a gas in which a liquid is sprayed or atomized, for example an air jet with sprayed water.

Die Erfindung ist nicht auf die dargestellten und beschriebenen Ausführungsformen beschränkt. Vielmehr sind Kombinationen zwischen den Ausführungsformen möglich. Der Schutzumfang wird nur durch die Patentansprüche bestimmt.The invention is not limited to the illustrated and described embodiments. Rather, combinations between the embodiments are possible. The scope of protection is determined only by the claims.

Claims (1)

  1. An auxiliary nozzle (8) for a loom that is configured in the form of a hollow needle (11) and has one exit aperture (25) in a wall adjoining a closed tip (12) that is directed at an weft insertion channel (4) when the auxiliary nozzle is attached to a loom, and has a protuberance (13) in the vicinity of its tip (12) that is directed to a reed (3) when the auxiliary nozzle is installed on a loom, characterized in that the exit aperture (25) disposed near the upper edge (28) of the hollow needle (11) consists of multiple individual apertures, all individual apertures being arranged in multiple, mutually parallel rows, located in an increasing distance to the upper edge (28), the rows of individual apertures extending inclined to the longitudinal axis (32) of the auxiliary nozzle (8) in such a manner that the exit aperture (25) will earlier enter a shed completely via the lower warp thread level (18) and later leave the shed via the lower warp thread level (18), and when the auxiliary nozzle is installed on a loom, the rows of individual apertures being arranged in such a way that these rows are essentially parallel to the lower warp thread level (18), when the exit aperture is entering the shed via the lower warp thread level (18) or is leaving the shed via the lower warp thread level (18).
EP04004657A 1999-04-14 2000-04-14 Auxiliary nozzle for a weaving loom Expired - Lifetime EP1428918B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9900257A BE1012608A3 (en) 1999-04-14 1999-04-14 Nozzle for a weaving machine.
BE9900257 1999-04-14
EP00926927A EP1169503B1 (en) 1999-04-14 2000-04-14 Auxiliary nozzle for a mechanical loom

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00926927A Division EP1169503B1 (en) 1999-04-14 2000-04-14 Auxiliary nozzle for a mechanical loom

Publications (3)

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EP1428918A2 EP1428918A2 (en) 2004-06-16
EP1428918A3 EP1428918A3 (en) 2004-09-01
EP1428918B1 true EP1428918B1 (en) 2007-08-08

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EP00926927A Expired - Lifetime EP1169503B1 (en) 1999-04-14 2000-04-14 Auxiliary nozzle for a mechanical loom
EP04004657A Expired - Lifetime EP1428918B1 (en) 1999-04-14 2000-04-14 Auxiliary nozzle for a weaving loom

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US (1) US6536482B1 (en)
EP (2) EP1169503B1 (en)
KR (1) KR100634900B1 (en)
CN (1) CN1116459C (en)
AT (2) ATE369451T1 (en)
BE (1) BE1012608A3 (en)
DE (2) DE50014554D1 (en)
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WO (1) WO2000063473A1 (en)

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DE50300789D1 (en) * 2002-04-26 2005-08-25 Sultex Ag Rueti Catching and holding device for the fishing-side weft end in a loom
JP2004107819A (en) * 2002-09-18 2004-04-08 Tsudakoma Corp Weft running controller for air-jet loom
BE1015155A3 (en) * 2002-10-23 2004-10-05 Picanol Nv SYRINGE nozzle for supporting a weft thread into a weaving machine.
BE1015261A3 (en) * 2002-12-19 2004-12-07 Picanol Nv SPRAY NOZZLE SUPPORTING a weft thread in a weaving machine.
DE502004003591D1 (en) * 2003-09-02 2007-06-06 Sultex Ag Weaving machine with an insertion device for weft threads
CN102839485A (en) * 2012-09-13 2012-12-26 吴江市隆泰喷织厂 Sleeve of auxiliary spraying nozzle
BE1022812B1 (en) * 2015-03-11 2016-09-13 Picanol Nv AUXILIARY NOZZLE FOR A WEAVING MACHINE
KR102118261B1 (en) * 2018-09-27 2020-06-02 서용교 Apparatus for prevetning feed fault of multiple weft yarn in air zet loom
JP7077968B2 (en) * 2019-01-14 2022-05-31 株式会社豊田自動織機 Weft processing equipment for air jet looms
CN114214778B (en) * 2021-12-15 2023-01-31 五洋纺机有限公司 Method for removing auxiliary weft yarns in weaving of spacer fabric
IT202200002681A1 (en) * 2022-02-14 2023-08-14 Itema Spa IMPROVED AUXILIARY NOZZLE FOR AIR FRAMES

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CH650035A5 (en) * 1980-11-28 1985-06-28 Sulzer Ag Auxiliary blowing nozzle for an air-jet weaving machine
EP0145824B1 (en) * 1983-12-09 1987-03-04 GebràœDer Sulzer Aktiengesellschaft Auxiliary nozzle for an air jet loom
DE3444973C1 (en) * 1984-12-10 1986-04-03 Scheffel Walter Dipl Ing Wade drawer with reed for jet weaving machines
DE3643058A1 (en) * 1986-11-21 1988-06-30 Picanol Nv NOZZLE WEAVING MACHINE
JP2711099B2 (en) * 1987-09-25 1998-02-10 日産テクシス株式会社 Auxiliary nozzle for air jet loom
JPH0299643A (en) * 1988-09-29 1990-04-11 Toyota Autom Loom Works Ltd Weft inserting device in jetting room
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ES2213014T3 (en) 2004-08-16
CN1355862A (en) 2002-06-26
EP1169503B1 (en) 2004-03-03
DE50014554D1 (en) 2007-09-20
US6536482B1 (en) 2003-03-25
DE50005517D1 (en) 2004-04-08
CN1116459C (en) 2003-07-30
KR100634900B1 (en) 2006-10-17
EP1169503A1 (en) 2002-01-09
ATE369451T1 (en) 2007-08-15
KR20010113775A (en) 2001-12-28
BE1012608A3 (en) 2001-01-09
ATE261011T1 (en) 2004-03-15
WO2000063473A1 (en) 2000-10-26
EP1428918A3 (en) 2004-09-01
EP1428918A2 (en) 2004-06-16

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