EP0023929B1 - Nozzle arrangement for a jet loom - Google Patents

Nozzle arrangement for a jet loom Download PDF

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Publication number
EP0023929B1
EP0023929B1 EP79102849A EP79102849A EP0023929B1 EP 0023929 B1 EP0023929 B1 EP 0023929B1 EP 79102849 A EP79102849 A EP 79102849A EP 79102849 A EP79102849 A EP 79102849A EP 0023929 B1 EP0023929 B1 EP 0023929B1
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EP
European Patent Office
Prior art keywords
nozzle
channel
guide tube
outflow
air
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
Application number
EP79102849A
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German (de)
French (fr)
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EP0023929A1 (en
Inventor
Erich Dr. Wall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Gebrueder Sulzer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Priority to EP79102849A priority Critical patent/EP0023929B1/en
Priority to DE7979102849T priority patent/DE2965070D1/en
Priority to AT79102849T priority patent/ATE2853T1/en
Priority to US06/168,522 priority patent/US4367772A/en
Priority to JP10880780A priority patent/JPS5631041A/en
Priority to BR8004976A priority patent/BR8004976A/en
Publication of EP0023929A1 publication Critical patent/EP0023929A1/en
Application granted granted Critical
Publication of EP0023929B1 publication Critical patent/EP0023929B1/en
Priority to JP1985182786U priority patent/JPS6198887U/ja
Expired legal-status Critical Current

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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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means

Definitions

  • the invention relates to a nozzle arrangement for a loom with jet, for. B. air jet entry, with at least one, the entry jet including the entry material enclosing outflow channel having entry nozzle.
  • the entry nozzle has an immovable outflow channel which is firmly connected to the nozzle body and which is directed against the shed of the weaving machine or against a downstream entry nozzle.
  • the weft thread to be inserted can also be brought relatively easily out of its direction and flung into the environment. This can be especially when threading a new weft z. B. occur after a weft break. In this case, the tip of the weft thread to be threaded is deflected from the entry line and guided into the environment, which leads to disturbances.
  • the air consumption in the known arrangement is relatively high due to the practically complete air outlet between the individual nozzles into the environment.
  • the invention has for its object to provide a particularly improved arrangement in this regard.
  • the invention consists in that an additional guide channel, which is adjustable parallel to the direction of flow of the entry jet and is held in its fixed position outside the shed during operation, is connected downstream of the outflow channel.
  • This makes it possible to restrict the free space between the outflow channel of the nozzle and the shed or the downstream nozzle to a greater or lesser extent or to separate this space from the air flow practically at all.
  • the sliding guide tube can be set to an optimal value, which results from experience or by trial and error during web operation. At this optimum value, the free distance between the outflow channel of the nozzle and the shed or the downstream nozzle is relatively small, so that only a certain amount of air can flow out into the free space. It can be achieved in this way that the weft thread has only a relatively slight tendency to deviate from the weft line or to be deflected into the surroundings. The air consumption can be kept relatively low.
  • a nozzle arrangement is also known (AT-PS 227 199), in which a guide tube is slidably arranged on a stationary air outflow channel. However, the guide tube is driven and is pushed into the shed for the weft insertion. At the same time, an intake manifold is inserted in the opposite direction from the other side of the compartment. The air flow does not occur intermittently, but continuously under slight overpressure. Through the bilateral guide tubes, it should be directed through the shed for the purpose of weft insertion, whereby the weft thread is taken along.
  • a housing 1 contains two nozzles, which are denoted as a whole by 2, 3 and are connected in series.
  • Each nozzle 2, 3 contains a nozzle body 4, which is inserted into a bore 6 of the housing 1 with the interposition of rubber seals 5.
  • the nozzle body 4 contains a thread channel 8 for the weft 7 coming from a weft supply spool (not shown) and several air supply channels 9 arranged around it. These receive air through a supply channel) H.
  • axially displaceable guide tube 14 can, for. B. in Fig. 1 to the left that between its outlet opening 16 and the inlet opening 17 of the following nozzle 3 only a small distance C of z. B. is one to two millimeters.
  • the speed of the air leaving the tube 12 at the outlet opening 21 of the nozzle 2 is greatly reduced by increasing the cross section from A to B. This allows a relatively large central area M in the cross section B arise, which has practically constant speed. In comparison, the marginal areas are negligibly small. This has a stabilizing effect on the thread guide; the thread has an increased tendency to remain in the middle area. Compare the corresponding speed arrows in the diagram of Fig. 1b. Part of the air can escape into the environment at C. The remaining part enters the inflow opening 17 of the following nozzle 3.
  • the guide tube 14 located at the nozzle 3 can be brought relatively close to the shed 20 formed by the warp threads 22 moved according to arrow 62, where a fabric 23 is produced by inserting the weft threads 7.
  • the guide tube 14 of the nozzle 2 can, for example, also be pushed to the left in FIG. 1 to such an extent that it projects into the inflow opening 17 of the nozzle 3 or sits on the inflow funnel 24 according to FIG. In this case, little or no air can escape into the environment.
  • the guide tube 14 has two rows of perforation holes 27 only in the end region 26. A portion of the air can escape into the environment through them, even if the tube 14 according to FIG. 1 is to the left is pushed out that it protrudes into the inlet opening 17 of the nozzle 3 or is seated on the inflow funnel 24.
  • the guide tube 14 and the tube 12 have threads 28, as a result of which the tube 14 can be moved and adjusted axially.
  • the guide tube 14 has perforation holes 27 along its entire length. As a result, the amount of air exiting through the tube 14 into the environment can be adjusted.
  • a guide tube 14a is provided between the thread channel 12 or the outlet opening 21 of the nozzle 2 and the inlet opening 17 of the nozzle 3 and is arranged on a holder 31 which can be displaced in a guide 42 according to arrow 45.
  • Its cross-section F is substantially larger than the cross-section A of the channel 12 of the nozzle 2. Also in this way it can be achieved that a relatively large, medium flow area of practically constant speed is created in the pipe 14a.
  • the nozzles 2, 3 can be arranged so as to be displaceable and adjustable relative to one another in the frame 1 due to guides 41, 43 (arrows 44, 46).
  • the tube 14a can then, for. B. protrude with its end 14b over the thread channel 12 under game 34.
  • a certain amount of air can escape through the slot 34 into the environment or into the tube 14a.
  • the conditions with regard to the guidance of the weft thread 7 between the nozzles 2, 3 on the one hand and the air entraining it on the other hand can be changed in different respects.
  • the guide tube between the two nozzles can also be set to optimal conditions by the operating personnel, particularly during weaving operation.
  • the nozzle 2 and the associated outflow pipe 12 and the guide pipe 14 are omitted and only the nozzle 3 with the associated parts 12, 14 is present. There is therefore an arrangement having only one entry nozzle, in which the guide tube 14 can be displaced more or less in the direction of the shed 20.
  • a plurality of guide tubes 14a of different lengths which can optionally be pushed onto the outflow pipe 12, can belong to a nozzle 2 or 3.
  • the cross section B of the guide tube 14 (FIG. 6) can also be made only slightly larger than the cross section A of the outflow channel 12 of the nozzle 2 or 3, so that practically no speed difference occurs at the transition point 21.
  • the guide tube 14 has only an elongating effect for the air emerging from the nozzle in question and the weft thread 7 carried along, so that the amount of air escaping into the environment can be regulated and thus the tendency of the weft thread 7 to deflect can be influenced.
  • a further channel can also be slidably attached to the guide channel 14, so that a z. B. consists of three parts, telescopic arrangement.
  • a guide tube 14c which can be displaced on the outflow pipe 12 and which has a conical extension 30 at its free end (on the left in FIG. 7) is used.
  • the conical extension 30 can act on the air jet in the manner of a Laval nozzle. If necessary, a plurality of guide channels 14c, which have different conicity 30 and can optionally be pushed onto the tube 12, can belong to the same outflow pipe 12.

Abstract

The nozzle assembly is provided for an air jet loom and includes a guide tube which is displaceable in the direction of the flowing air on the outflow tube of the nozzle. The guide tube allows the gap between the nozzle and the following nozzle or the shed to be adjusted to an optimum value, for example, during a weaving operation. The guide tube allows the weft yarn to be held in the picking line while reducing the tendency of the yarn to be deflected into the surrounding environment.

Description

Die Erfindung betrifft eine Düsenanordnung für eine Webmaschine mit Strahl-, z. B. Luftstrahleintrag, mit wenigstens einer, einen den Eintragsstrahl samt dem Eintragsmaterial umschließenden Ausströmkanal aufweisenden Eintragsdüse.The invention relates to a nozzle arrangement for a loom with jet, for. B. air jet entry, with at least one, the entry jet including the entry material enclosing outflow channel having entry nozzle.

Bei einer bekannten Anordnung dieser Art (DE-OS 2 741 859 = US-PS 4 133 353) besitzt die Eintragsdüse einen mit dem Düsenkörper fest verbundenen, unverschieblichen Ausströmkanal, der gegen das Webfach der Webmaschine bzw. gegen eine nachgeschaltete Eintragsdüse gerichtet ist. Zwischen dem freien Ende des Ausströmkanals der Eintragsdüse und dem Webfach bzw. der nachgeschalteten Düse besteht ein mehr oder weniger großer, konstanter Abstand, über den aus der Düse kommende Luft in die Umgebung austreten kann. Dadurch kann auch der einzutragende Schußfaden relativ leicht aus seiner Richtung gebracht und in die Umgebung geschleudert werden. Dies kann besonders beim Einfädeln eines neuen Schußfadens z. B. nach einem Schußfadenbruch eintreten. In diesem Fall wird die Spitze des einzufädelnden Schußfadens aus der Eintragslinie abgelenkt und in die Umgebung geführt, was zu Störungen führt.In a known arrangement of this type (DE-OS 2 741 859 = US Pat. No. 4,133,353), the entry nozzle has an immovable outflow channel which is firmly connected to the nozzle body and which is directed against the shed of the weaving machine or against a downstream entry nozzle. There is a more or less large, constant distance between the free end of the outflow channel of the entry nozzle and the shed or the downstream nozzle, via which air coming from the nozzle can escape into the environment. As a result, the weft thread to be inserted can also be brought relatively easily out of its direction and flung into the environment. This can be especially when threading a new weft z. B. occur after a weft break. In this case, the tip of the weft thread to be threaded is deflected from the entry line and guided into the environment, which leads to disturbances.

Ferner ist der Luftverbrauch bei der bekannten Anordnung infolge des praktisch vollständigen Luftaustrittes zwischen den einzelnen Düsen in die Umgebung verhältnismäßig hoch.Furthermore, the air consumption in the known arrangement is relatively high due to the practically complete air outlet between the individual nozzles into the environment.

Der Erfindung liegt die Aufgabe zugrunde, eine besonders in dieser Hinsicht verbesserte Anordnung zu schaffen.The invention has for its object to provide a particularly improved arrangement in this regard.

Die Erfindung besteht darin, daß dem Ausströmkanal ein zusätzlicher, parallel zur Strömungsrichtung des Eintragsstrahles verstellbarer, während des Betriebs in seiner festen Position außerhalb des Webfaches gehaltener Führungskanal nachgeschaltet ist. Hierdurch wird es möglich, den freien Raum zwischen dem Ausströmkanal der Düse und dem Webfach bzw. der nachgeschalteten Düse mehr oder weniger weit zu beschränken bzw. diesen Raum praktisch überhaupt von der Luftströmung zu trennen. Das verschiebbare Führungsrohr kann auf einen optimalen Wert eingestellt werden, der sich aus der Erfahrung oder auch durch Probieren während des Webbetriebes ergibt. Bei diesem Optimalwert ist der freie Abstand zwischen Ausströmkanal der Düse und dem Webfach bzw. der nachgeschalteten Düse relativ gering, so daß auch nur ein gewisser Betrag an Luft in den freien Raum abströmen kann. Es läßt sich auf diese Weise erzielen, daß der Schußfaden nur relativ geringe Tendenz besitzt, aus der Schußlinie abzuweichen bzw. in die Umgebung abgelenkt zu werden. Der Luftverbrauch läßt sich relativ gering halten.The invention consists in that an additional guide channel, which is adjustable parallel to the direction of flow of the entry jet and is held in its fixed position outside the shed during operation, is connected downstream of the outflow channel. This makes it possible to restrict the free space between the outflow channel of the nozzle and the shed or the downstream nozzle to a greater or lesser extent or to separate this space from the air flow practically at all. The sliding guide tube can be set to an optimal value, which results from experience or by trial and error during web operation. At this optimum value, the free distance between the outflow channel of the nozzle and the shed or the downstream nozzle is relatively small, so that only a certain amount of air can flow out into the free space. It can be achieved in this way that the weft thread has only a relatively slight tendency to deviate from the weft line or to be deflected into the surroundings. The air consumption can be kept relatively low.

Es ist zwar auch eine Düsenanordnung bekannt (AT-PS 227 199), bei der ein Leitrohr auf einem ortsfesten Luftausströmkanal verschiebbar angeordnet ist. Das Leitrohr ist jedoch angetrieben und wird jeweils zum Schußeintrag in das Webfach geschoben. Zugleich wird von der anderen Fachseite ein Saugrohr in entgegengesetzter Richtung eingeschoben. Der Luftstrom erfolgt nicht stoßweise, sondern kontinuierlich unter geringem Überdruck. Durch die beiderseitigen Leitrohre soll er zwecks Schußeintrag durch das Webfach gelenkt werden, wodurch der Schußfaden mitgenommen wird.A nozzle arrangement is also known (AT-PS 227 199), in which a guide tube is slidably arranged on a stationary air outflow channel. However, the guide tube is driven and is pushed into the shed for the weft insertion. At the same time, an intake manifold is inserted in the opposite direction from the other side of the compartment. The air flow does not occur intermittently, but continuously under slight overpressure. Through the bilateral guide tubes, it should be directed through the shed for the purpose of weft insertion, whereby the weft thread is taken along.

Eine ähnliche Anordnung zeigt auch die CH-A-365 346.A similar arrangement is also shown in CH-A-365 346.

Bei diesen bekannten Düsenanordnungen handelt es sich somit nicht um solche mit während des Betriebes ständig außerhalb des Webfaches gehaltenem Führungskanal, der nach einmaliger Einstellung in seiner Position verbleibt. Bei derartige.) Anordnungen stellt sich somit das vorgenannte Problem nicht. ,These known nozzle arrangements are therefore not those with a guide channel which is kept outside the shed during operation and remains in its position after a single adjustment. With such.) Arrangements, the aforementioned problem does not arise. ,

Weitere Merkmale ergeben sich aus der folgenden Beschreibung von Ausführungsbeispielen in Verbindung mit der Zeichnung und den Ansprüchen.

  • Fig. 1 ist ein Schnitt durch eine erste Ausführungsform,
  • Fig. 1 zeigt eine andere Position der Teile nach Fig. 1,
  • Fig. 1 erläutert ein zu Fig. 1 gehörendes Geschwindigkeitsdiagramm,
  • Fig. 2 und 3 veranschaulichen abgewandelte Ausführungsformen und
  • Fig. 4 bis 7 erläutern noch andere Bauarten.
Further features result from the following description of exemplary embodiments in conjunction with the drawing and the claims.
  • 1 is a section through a first embodiment,
  • 1 shows a different position of the parts according to FIG. 1,
  • 1 explains a speed diagram belonging to FIG. 1,
  • 2 and 3 illustrate modified embodiments and
  • 4 to 7 explain still other types.

Ein Gehäuse 1 enthält zwei als Ganzes mit 2, 3 bezeichnete, hintereinander geschaltete Düsen. Jede Düse 2, 3 enthält einen Düsenkörper 4, der unter Zwischenlage von Gummidichtungen 5 in eine Bohrung 6 des Gehäuses 1 eingeschoben ist. Der Düsenkörper 4 enthält einen Fadenkanal 8 für den von einer nicht dargestellten Schußfaden-Vorratsspule kommenden Schußfaden 7 und mehrere, um ihn herum angeordnete Luftzuführungskanäle 9. Diese erhalten Luft durch einen Zuführungskana) H.A housing 1 contains two nozzles, which are denoted as a whole by 2, 3 and are connected in series. Each nozzle 2, 3 contains a nozzle body 4, which is inserted into a bore 6 of the housing 1 with the interposition of rubber seals 5. The nozzle body 4 contains a thread channel 8 for the weft 7 coming from a weft supply spool (not shown) and several air supply channels 9 arranged around it. These receive air through a supply channel) H.

Auf das Ausströmrohr 12 jeder Düse 2, 3, dessen Querschnitt mit A bezeichnet ist, ist unter Zwischenlage eines Dichtungsringes 13 ein Führungsrohr 14 aufgeschoben, dessen Querschnitt B im Vergleich zu dem Querschnitt A wesentlich größer ist, z. B. das Vier- bis Achtfache beträgt.On the outflow pipe 12 of each nozzle 2, 3, the cross section of which is designated A, with the interposition of a sealing ring 13, a guide tube 14 is pushed on, the cross section B of which is significantly larger than the cross section A, e.g. B. is four to eight times.

Das auf der Düse 2 befindliche, gemäß Pfeil 61 axial verschiebbare Führungsrohr 14 kann z. B. in Fig. 1 soweit nach links geschoben sein, daß zwischen seiner Austrittsöffnung 16 und der Eintrittsöffnung 17 der folgenden Düse 3 nur ein geringer Abstand C von z. B. ein bis zwei Millimeter besteht.The located on the nozzle 2, according to arrow 61 axially displaceable guide tube 14 can, for. B. in Fig. 1 to the left that between its outlet opening 16 and the inlet opening 17 of the following nozzle 3 only a small distance C of z. B. is one to two millimeters.

Die Geschwindigkeit der das Rohr 12 an der Austrittsöffnung 21 der Düse 2 verlassenden Luft wird durch die Vergrößerung des Querschnitts von A auf B stark abgesenkt. Dadurch kann ein relativ großer Mittelbereich M in dem Querschnitt B entstehen, welcher praktisch konstante Geschwindigkeit aufweist. Die Randbereiche sind im Vergleich dazu vernachlässigbar klein. Dies wirkt sich auf die Fadenführung stabilisierend aus; der Faden hat eine verstärkte Tendenz, im Mittelbereich zu verbleiben. Vergleiche die entsprechenden Geschwindigkeitspfeile in dem Diagramm nach Fig. 1b. Ein Teil der Luft kann bei C in die Umgebung austreten. Der restliche Teil gelangt in die Einströmöffnung 17 der folgenden Düse 3.The speed of the air leaving the tube 12 at the outlet opening 21 of the nozzle 2 is greatly reduced by increasing the cross section from A to B. This allows a relatively large central area M in the cross section B arise, which has practically constant speed. In comparison, the marginal areas are negligibly small. This has a stabilizing effect on the thread guide; the thread has an increased tendency to remain in the middle area. Compare the corresponding speed arrows in the diagram of Fig. 1b. Part of the air can escape into the environment at C. The remaining part enters the inflow opening 17 of the following nozzle 3.

In entsprechender Weise kann das bei der Düse 3 befindliche Führungsrohr 14 verhältnismäßig nahe an das durch die gemäß Pfeil 62 bewegten Kettfäden 22 gebildete Webfach 20 herangeführt werden, wo ein Gewebe 23 durch Eintragen der Schußfäden 7 erzeugt wird.In a corresponding manner, the guide tube 14 located at the nozzle 3 can be brought relatively close to the shed 20 formed by the warp threads 22 moved according to arrow 62, where a fabric 23 is produced by inserting the weft threads 7.

Das Führungsrohr 14 von Düse 2 kann beispielsweise auch in Fig. 1 soweit nach links geschoben werden, daß es gemäß Fig. 1a in die Einströmöffnung 17 der Düse 3 hineinragt oder auf dem Einströmtrichter 24 aufsitzt. In diesem Fall kann keine oder nur sehr wenig Luft in die Umgebung austreten.The guide tube 14 of the nozzle 2 can, for example, also be pushed to the left in FIG. 1 to such an extent that it projects into the inflow opening 17 of the nozzle 3 or sits on the inflow funnel 24 according to FIG. In this case, little or no air can escape into the environment.

Bei dem Beispiel nach Fig.2 besitzt das Führungsrohr 14 lediglich in dem Endbereich 26 zwei Reihen von Perforationslöchern 27. Durch sie vermag ein Anteil der Luft in die Umgebung auszutreten, und zwar auch dann, wenn das Rohr 14 gemäß Fig. 1 soweit nach links ausgeschoben ist, daß es in die Eintrittsöffnung 17 der Düse 3 hineinragt oder auf dem Einströmtrichter 24 aufsitzt.In the example according to FIG. 2, the guide tube 14 has two rows of perforation holes 27 only in the end region 26. A portion of the air can escape into the environment through them, even if the tube 14 according to FIG. 1 is to the left is pushed out that it protrudes into the inlet opening 17 of the nozzle 3 or is seated on the inflow funnel 24.

Bei der Bauart nach Fig.2 2 besitzt das Führungsrohr 14 und das Rohr 12 Gewinde 28, wodurch das Rohr 14 axial verschiebbar und einstellbar ist.In the construction according to FIG. 2, the guide tube 14 and the tube 12 have threads 28, as a result of which the tube 14 can be moved and adjusted axially.

Bei der Ausführungsform nach Fig. 3 besitzt das Führungsrohr 14 auf seiner ganzen Länge Perforationslöcher 27. Hierdurch läßt sich die Menge der durch das Rohr 14 hindurch in die Umgebung austretenden Luft einstellen.In the embodiment according to FIG. 3, the guide tube 14 has perforation holes 27 along its entire length. As a result, the amount of air exiting through the tube 14 into the environment can be adjusted.

Bei dem Ausführungsbeispiel nach Fig. 4 ist zwischen dem Fadenkanal 12 bzw. der Austrittsöffnung 21 der Düse 2 und der Eintrittsöffnung 17 der Düse 3 ein auf einem in einer Führung 42 gemäß Pfeil 45 verschiebbaren Halter 31 angeordnetes Führungsrohr 14a vorgesehen. Sein Querschnitt F ist wesentlich größer als der Querschnitt A des Kanals 12 der Düse 2. Auch auf diese Weise läßt sich erreichen, daß ein relativ großer, mittlerer Strömungsbereich von praktisch konstanter Geschwindigkeit in dem Rohr 14a entsteht.In the embodiment according to FIG. 4, a guide tube 14a is provided between the thread channel 12 or the outlet opening 21 of the nozzle 2 and the inlet opening 17 of the nozzle 3 and is arranged on a holder 31 which can be displaced in a guide 42 according to arrow 45. Its cross-section F is substantially larger than the cross-section A of the channel 12 of the nozzle 2. Also in this way it can be achieved that a relatively large, medium flow area of practically constant speed is created in the pipe 14a.

Gegebenenfalls können die Düsen 2, 3 aufgrund von Führungen 41, 43 in dem Gestell 1 gegeneinander verschiebbar und einstellbar angeordnet sein (Pfeile 44, 46). Das Rohr 14a kann dann z. B. mit seinem Ende 14b über den Fadenkanal 12 unter Spiel 34 hinwegragen.If necessary, the nozzles 2, 3 can be arranged so as to be displaceable and adjustable relative to one another in the frame 1 due to guides 41, 43 (arrows 44, 46). The tube 14a can then, for. B. protrude with its end 14b over the thread channel 12 under game 34.

Durch den Schlitz 34 kann eine gewisse Menge Luft in die Umgebung austreten bzw. in das Rohr 14a eintreten.A certain amount of air can escape through the slot 34 into the environment or into the tube 14a.

Bei den verschiedenen Varianten lassen sich die Verhältnisse bezüglich der Führung des Schußfadens 7 zwischen den Düsen 2, 3 einerseits und der ihn mitnehmenden Luft andererseits in verschiedener Hinsicht verändern. Das Führungsrohr zwischen den beiden Düsen kann insbesondere auch während des Webbetriebes vom Bedienungspersonal auf optimale Verhältnisse eingestellt werden.In the different variants, the conditions with regard to the guidance of the weft thread 7 between the nozzles 2, 3 on the one hand and the air entraining it on the other hand can be changed in different respects. The guide tube between the two nozzles can also be set to optimal conditions by the operating personnel, particularly during weaving operation.

Bei einem abgewandelten Ausführungsbeispiel entfällt die Düse 2 sowie das zugehörige Ausströmrohr 12 und das Führungsrohr 14 und es ist nur die Düse 3 mit den zugehörigen Teilen 12, 14 vorhanden. Es liegt also eine nur eine Eintragsdüse aufweisende Anordnung vor, bei der das Führungsrohr 14 mehr oder weniger in Richtung auf das Webfach 20 hin verschiebbar ist.In a modified exemplary embodiment, the nozzle 2 and the associated outflow pipe 12 and the guide pipe 14 are omitted and only the nozzle 3 with the associated parts 12, 14 is present. There is therefore an arrangement having only one entry nozzle, in which the guide tube 14 can be displaced more or less in the direction of the shed 20.

Es kann auch A=B sein (Fig. 5). Gegebenenfalls können mehrere, verschieden lange, wahlweise auf das Ausströmrohr 12 aufschiebbare Führungsrohre 14a zu einer Düse 2 bzw. 3 gehören.It can also be A = B (Fig. 5). If necessary, a plurality of guide tubes 14a of different lengths, which can optionally be pushed onto the outflow pipe 12, can belong to a nozzle 2 or 3.

Der Querschnitt B des Führungsrohres 14 (Fig. 6) kann auch nur wenig größer als der Querschnitt A des Ausströmkanals 12 der Düse 2 bzw. 3 ausgebildet sein, so daß an der Übergangsstelle 21 praktisch keine Geschwindigkeitsdifferenz auftritt. In diesem Fall hat das Führungsrohr 14 nur verlängernde Wirkung für die aus der betreffenden Düse tretenden Luft und den mitgeführten Schußfaden 7, so daß die Menge der in die Umgebung austretenden Luft reguliert und damit die Tendenz des Schußfadens 7 zur Auslenkung beeinflußt werden kann.The cross section B of the guide tube 14 (FIG. 6) can also be made only slightly larger than the cross section A of the outflow channel 12 of the nozzle 2 or 3, so that practically no speed difference occurs at the transition point 21. In this case, the guide tube 14 has only an elongating effect for the air emerging from the nozzle in question and the weft thread 7 carried along, so that the amount of air escaping into the environment can be regulated and thus the tendency of the weft thread 7 to deflect can be influenced.

Gegebenenfalls kann auch auf dem Führungskanal 14 noch ein weiterer Kanal ausschiebbar angebracht sein, so daß eine z. B. aus drei Teilen bestehende, teleskopartige Anordnung vorliegt.If necessary, a further channel can also be slidably attached to the guide channel 14, so that a z. B. consists of three parts, telescopic arrangement.

Bei dem Beispiel nach Fig. 7 ist ein auf dem Ausströmrohr 12 verschiebbares Führungsrohr 14c verwendet, das an seinem freien Ende (in Fig. 7 links) eine konische Erweiterung 30 besitzt. Die konische Erweiterung 30 vermag nach Art einer Laval-Düse auf den Luftstrahl einzuwirken. Gegebenenfalls können zu ein und demselben Ausströmrohr 12 mehrere, verschiedene Konizität 30 aufweisende, wahlweise auf das Rohr 12 aufschiebbare Führungskanäle 14c gehören.In the example according to FIG. 7, a guide tube 14c which can be displaced on the outflow pipe 12 and which has a conical extension 30 at its free end (on the left in FIG. 7) is used. The conical extension 30 can act on the air jet in the manner of a Laval nozzle. If necessary, a plurality of guide channels 14c, which have different conicity 30 and can optionally be pushed onto the tube 12, can belong to the same outflow pipe 12.

Claims (7)

1. Nozzle arrangement for a weaving machine with jet, e. g. air jet, insertion, having at least one insertion nozzle, comprising an outflow channel, for the filamentous material to be inserted, characterized in that the outflow channel (12) is followed by a guide channel (14) slidable (arrow 61) parallel to the flow direction (arrow 7) of the insertion jet.
2. Arrangement according to claim 1, characterized in that the guide channel is a tube (14) slidable back and forth on the outflow channel (12).
3. Arrangement according to claim 1 or 2, characterized in that the guide channel (14) has perforation holes (27) at least at its free end (26).
4. Arrangement according to claims 1 and 2, characterized in that an elastic seal (13) is disposed between the guide channel (14) and outflow channel (12).
5. Arrangement according to claims 1 and 2, characterized in that the guide channel (14) and outflow channel (12) have threads (28) and the guide channel (14) is screwed on the outflow channel (12).
6. Arrangement according to one of the preceding claims, characterized in that the guide channel (14) has a substantially greater cross section (B), as compared with the cross section (A) of the outflow channel (12).
7. Arrangement according to one of claims 1 to 5, characterized in that the guide channel (14c) has at its free end a conical enlargement (30).
EP79102849A 1979-08-08 1979-08-08 Nozzle arrangement for a jet loom Expired EP0023929B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP79102849A EP0023929B1 (en) 1979-08-08 1979-08-08 Nozzle arrangement for a jet loom
DE7979102849T DE2965070D1 (en) 1979-08-08 1979-08-08 Nozzle arrangement for a jet loom
AT79102849T ATE2853T1 (en) 1979-08-08 1979-08-08 NOZZLE ARRANGEMENT FOR A WEAVING MACHINE WITH JET INSERT.
US06/168,522 US4367772A (en) 1979-08-08 1980-07-14 Nozzle assembly for a weaving machine
JP10880780A JPS5631041A (en) 1979-08-08 1980-08-07 Nozzle apparatus used in loom equipped with apparatus for passing yarn by injected stream
BR8004976A BR8004976A (en) 1979-08-08 1980-08-07 SET OF TEAR NOZZLES WITH JET INJECTION
JP1985182786U JPS6198887U (en) 1979-08-08 1985-11-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79102849A EP0023929B1 (en) 1979-08-08 1979-08-08 Nozzle arrangement for a jet loom

Publications (2)

Publication Number Publication Date
EP0023929A1 EP0023929A1 (en) 1981-02-18
EP0023929B1 true EP0023929B1 (en) 1983-03-23

Family

ID=8186169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102849A Expired EP0023929B1 (en) 1979-08-08 1979-08-08 Nozzle arrangement for a jet loom

Country Status (6)

Country Link
US (1) US4367772A (en)
EP (1) EP0023929B1 (en)
JP (2) JPS5631041A (en)
AT (1) ATE2853T1 (en)
BR (1) BR8004976A (en)
DE (1) DE2965070D1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668137A (en) * 1979-10-30 1981-06-08 Ishikawa Seisakusho Kk Weft yarn inserting nozzle of air jet type loom
BR8108872A (en) * 1980-11-17 1982-10-13 Rueti Te Strake Bv A PROCESS TO TRANSPORT A FLEXIBLE YARN THROUGH PRESSURE GAS
JPS584851A (en) * 1981-07-02 1983-01-12 日産自動車株式会社 Wefting nozzle of air jet type loom
US4494888A (en) * 1981-07-27 1985-01-22 Seisakusho Kabushiki Kaisha Toyoda Jidoshokki Weft inserting method and apparatus for an air jet loom
CH653387A5 (en) * 1982-02-19 1985-12-31 Rueti Ag Maschf ROW SPECIAL WAVING MACHINE WITH A WEB ROTOR.
BE904260A (en) * 1986-02-21 1986-08-21 Picanol Nv Apparatus for the insertion of weft threads in GAAP at airjet weaving machines and adjustable blowers.
JPH0665775B2 (en) * 1986-03-08 1994-08-24 津田駒工業株式会社 Multi-color weft insertion device for fluid-jetting shuttleless loom
NL8603069A (en) * 1986-12-02 1988-07-01 Picanol Nv MAIN BLAZER WITH INCREASED PULL FOR WEAVING MACHINES.
JPH0629411Y2 (en) * 1988-08-19 1994-08-10 マツダ株式会社 Outer handle device for vehicle
FR2644800B1 (en) * 1989-03-22 1991-05-31 Saurer Diederichs Sa WEFT YARN FEEDING DEVICE FOR WEAVING MACHINE WITH PNEUMATIC WEFT INSERTION
BE1005230A3 (en) * 1991-01-04 1993-06-01 Picanol Nv Device for seeking an impact on wire looms.
US6497257B1 (en) 2002-02-28 2002-12-24 Glen Raven, Inc. Control of fill yarn during basket weave type patterns on air jet looms
JP5008185B2 (en) * 2007-03-30 2012-08-22 津田駒工業株式会社 Weft insertion nozzle
JP2009007694A (en) * 2007-06-27 2009-01-15 Tsudakoma Corp Weft-insertion nozzle and nozzle slip-out prevention member for weft used for weft-insertion nozzle
CN103603125B (en) * 2013-12-10 2015-10-28 苏州大学 Air-flow accelerated method in a kind of main nozzle structure of air-jet loom and main burner

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU48005A1 (en) * 1935-10-09 1936-08-31 И.С. Дацюк Electrostatic separator
BE564609A (en) * 1957-02-08
AT227199B (en) * 1959-05-25 1963-05-10 Walter Scheffel loom
US3180368A (en) * 1962-01-23 1965-04-27 Prince Jidosha Kogyo Kabushiki Device for projecting weft yarns in fluid jet type shuttleless loom
NL7206367A (en) * 1972-05-10 1973-11-13
JPS5027100A (en) * 1973-07-13 1975-03-20
CH594089A5 (en) * 1976-01-27 1977-12-30 Rueti Ag Maschf
NL7701916A (en) * 1976-02-27 1977-08-30 Scheffel Walter METHOD AND DEVICE FOR INSERTING THE Weft INTO A Loom.
NL7610385A (en) * 1976-09-17 1978-03-21 Rueti Te Strake Bv PNEUMATIC WEAVING MACHINE AND INTENDED WASH CONVEYOR.
CH610366A5 (en) * 1976-09-27 1979-04-12 Rueti Ag Maschf Device for inserting weft threads into a shed
JPS53119367A (en) * 1977-03-24 1978-10-18 Nissan Motor Device for weft insertion for fluid jet loom

Also Published As

Publication number Publication date
EP0023929A1 (en) 1981-02-18
DE2965070D1 (en) 1983-04-28
JPS5631041A (en) 1981-03-28
ATE2853T1 (en) 1983-04-15
JPS6198887U (en) 1986-06-24
US4367772A (en) 1983-01-11
BR8004976A (en) 1981-02-24

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