EP0047335B1 - Jet arrangement for a loom - Google Patents

Jet arrangement for a loom Download PDF

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Publication number
EP0047335B1
EP0047335B1 EP80105387A EP80105387A EP0047335B1 EP 0047335 B1 EP0047335 B1 EP 0047335B1 EP 80105387 A EP80105387 A EP 80105387A EP 80105387 A EP80105387 A EP 80105387A EP 0047335 B1 EP0047335 B1 EP 0047335B1
Authority
EP
European Patent Office
Prior art keywords
channel
air
arrangement
weaving machine
thread
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
EP80105387A
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German (de)
French (fr)
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EP0047335A1 (en
Inventor
Dionizy Simson
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 EP80105387A priority Critical patent/EP0047335B1/en
Priority to DE8080105387T priority patent/DE3069800D1/en
Priority to SU813320783A priority patent/SU1228791A3/en
Priority to US06/296,647 priority patent/US4410018A/en
Priority to JP56141618A priority patent/JPS5777356A/en
Priority to CS816654A priority patent/CS236775B2/en
Publication of EP0047335A1 publication Critical patent/EP0047335A1/en
Application granted granted Critical
Publication of EP0047335B1 publication Critical patent/EP0047335B1/en
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
    • D03D47/3026—Air supply systems
    • D03D47/3053—Arrangements or lay out of air supply systems
    • 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

Definitions

  • the invention relates to a nozzle arrangement for a weaving machine, with a guide channel for thread-like material and a channel opening at an acute angle into the material guide channel for introducing a fluid jet.
  • a nozzle arrangement for a weaving machine with a guide channel for thread-like material and a channel opening at an acute angle into the material guide channel for introducing a fluid jet.
  • the weft thread of a weaving machine is assumed as the thread-like material, and air, for example, is assumed as the fluid.
  • CH-PS 462 061 open into the thread guide channel at an acute angle two air inlet channels which can be alternately connected to a compressed air supply line via a control slide.
  • One air inlet duct is arranged in the direction of conveying the thread in the thread guide duct, the other in the opposite direction.
  • the arrangement can thereby be used as a brake nozzle for a thread and on the other hand, for. B. in the event of thread breakage, after switching the air inlet channels for threading the thread into the thread guide channel.
  • This known arrangement can only be connected to a single air supply line. If the nozzle assembly during weaving as a brake nozzle and z. B. after thread break for threading, this single air supply line must be fed directly from the compressed air network of the loom. This is necessary so that even after the weaving machine has come to a standstill and the machine main valve has been closed, air is available for threading the broken weft thread into the brake nozzle. As a result, air losses are unavoidable in the known arrangement when a weaving machine is at a standstill.
  • the invention has for its object to provide a nozzle arrangement which is particularly improved in this regard.
  • the invention is that the inlet channel for the fluid jet, for. B. for an air jet, is contained in a rotating body of the arrangement through which the inlet channel is pivotable, such that the introduced fluid jet flows alternately in the conveying direction of the thread-like material or in the opposite direction.
  • the design is particularly simple due to the pivotable arrangement of the inlet channel in a rotating body. It can usually get by with a single seal on the rotating body. It is also achieved that the mouth of the introduced air always takes place approximately at the same point in the thread guide channel. In contrast, the mouths of the two stationary, optionally switchable inlet ducts in the known nozzle arrangement mentioned are a relatively large distance apart, so that the entire nozzle arrangement takes up a correspondingly larger amount of space and is relatively expensive.
  • two further air inlets are present on the rotating body and can be connected alternately.
  • the compressed air source can be connected directly to one air inlet and the main valve of an associated weaving machine to the other.
  • the required brake air can be removed after the main valve of the loom, while the z. B. at standstill due to weft breakage required threading of the broken thread into the thread feed channel, which must be carried out in the direction of entry of the weft thread, can be removed directly from the compressed air network.
  • the weaving machine is at a standstill and the main weaving machine valve is closed, it can be avoided that air can flow out into the environment as a result of a direct connection of the nozzle arrangement to the compressed air network. Air losses can thus be avoided.
  • the entry nozzles are via an air supply line 3 to a compressed air source 4, for. B. connected to a compressed air network.
  • the line 3 contains a filter 5 and a main valve 6.
  • all air consumers, in particular the entry nozzles are fed via the line 3 around the opened valve 6.
  • the main valve 6 is automatically closed in order to avoid air losses.
  • a direct air supply line 7 containing a throttle element 42 is branched off at 32 and, after the main valve 6 at 31, a brake air supply line 28 containing a throttle element 48 is branched off and led to a nozzle arrangement, designated as a whole by 8, connected at 35 or 29 , which is arranged on the entry side of the weaving machine 1.
  • the arrangement 8 (FIG. 2) contains a nozzle body 11, in which a thread guide channel 12 for a weft thread 14 to be entered in the direction of arrow 13 and not shown in FIG. 1 is attached.
  • a control slide 16 which is rotatable about a vertical axis 15 is arranged with the interposition of a seal 11 and a leaf spring 18.
  • the control slide 16 contains an air supply duct, which consists of a vertical section 21, a horizontal section 22 and a central, vertical section 23. From section 23 is a at an acute angle of z. B. 10 "terminating air inlet duct 24.
  • the mode of action is as follows.
  • the nozzle arrangement 8 is in the braking position according to FIGS. 2-4.
  • the main valve 6 is open. Now air flows over the lines 3, 28 and the inlet channel 24 according to arrows 25, 41 in the opposite direction to the weft thread entry according to arrows 13.
  • the weft thread 14 is therefore subjected to a slight permanent braking effect or tension under the brake air introduced, causing it to come into contact with the system a thread metering drum 43 arranged on the entry side of the weaving machine can be held.
  • an annular shoulder section 37 which extends over 180 °, is recessed on the control slide 16 and cooperates with a fixed stop pin 38. It is achieved in this way that the nozzle arrangement 8 receives air from the line 3 via the branch point 31 during weaving operation, so that when the weft breaks and the loom 1 comes to a standstill the air supplied to the nozzle arrangement 8 is also used, which is used as brake air during weaving operation is (position according to Fig. 2 to 4), is also shut off immediately when the main valve 6 is closed.
  • the automatic line 28 which is switched on during weaving operation is dispensed with.
  • the nozzle 8 then contains only the pivotable inlet channel 24, to which air can be fed directly from the air source 4 via line 7.
  • the channel 12 can also, for. B. be angled at axis 15.
  • the plug 52 is omitted.
  • the hand lever 34 is clamped onto the control slide 16 from the outside, for example.
  • Line 7 is connected in Fig. 2, 3 above to the channel 23, so that the air to be supplied is introduced in this way.
  • Line 28 is omitted in this case.
  • the connecting channels 53, 54 in the nozzle body 11 are then also eliminated.
  • another fluid eg. B. water can be used, which can be particularly useful in water jet looms.

Description

Die Erfindung betrifft eine Düsenanordnung für eine Webmaschine, mit einem Führungskanal für fadenförmiges Material und einem unter spitzem Winkel in den Material-Führungskanal mündenden Kanal zum Einleiten eines Fluid-Strahles. (Im folgenden ist als fadenförmiges Material z. B. der Schußfaden einer Webmaschine, als Fluid z. B. Luft angenommen.)The invention relates to a nozzle arrangement for a weaving machine, with a guide channel for thread-like material and a channel opening at an acute angle into the material guide channel for introducing a fluid jet. (In the following, the weft thread of a weaving machine is assumed as the thread-like material, and air, for example, is assumed as the fluid.)

Bei einer bekannten Anordnung der genannten Art (CH-PS 462 061) münden in den Fadenführungskanal unter spitzem Winkel zwei Lufteinleitkanäle, die über einen Steuerschieber wechselweise an eine Preßluftzuführungsleitung anschließbar sind. Der eine Lufteinleitkanal ist in Richtung der Beförderung des Fadens in dem Fadenführungskanal angeordnet, der andere in dazu entgegengesetzter Richtung. Die Anordnung kann dadurch als Bremsdüse für einen Faden verwendet werden und andererseits, z. B. bei Fadenbruch, nach Umschalten der Lufteinleitkanäle zum Einfädeln des Fadens in den Fadenführungskanal benutzt werden.In a known arrangement of the type mentioned (CH-PS 462 061) open into the thread guide channel at an acute angle two air inlet channels which can be alternately connected to a compressed air supply line via a control slide. One air inlet duct is arranged in the direction of conveying the thread in the thread guide duct, the other in the opposite direction. The arrangement can thereby be used as a brake nozzle for a thread and on the other hand, for. B. in the event of thread breakage, after switching the air inlet channels for threading the thread into the thread guide channel.

Diese bekannte Anordnung läßt sich nur an eine einzige Luftzuführungsleitung anschließen. Soll die Düsenanordnung während des Webbetriebes als Bremsdüse und z. B. nach Fadenbruch zum Einfädeln verwendet werden, so muß diese einzige Luftzuleitung unmittelbar von dem Druckluftnetz der Webmaschine gespeist werden. Dies ist erforderlich, damit auch nach Stillstand der Webmaschine und dem damit gekuppelten Schließen eines Maschinen-Hauptventiles Luft zum Einfädeln des gebrochenen Schußfadens in die Bremsdüse zur Verfügung steht. Hierdurch sind bei der bekannten Anordnung bei Stillstand einer Webmaschine Luftverluste unumgänglich.This known arrangement can only be connected to a single air supply line. If the nozzle assembly during weaving as a brake nozzle and z. B. after thread break for threading, this single air supply line must be fed directly from the compressed air network of the loom. This is necessary so that even after the weaving machine has come to a standstill and the machine main valve has been closed, air is available for threading the broken weft thread into the brake nozzle. As a result, air losses are unavoidable in the known arrangement when a weaving machine is at a standstill.

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

Die Erfindung besteht darin, daß der Einleitkanal für den Fluid-Strahl, z. B. für einen Luftstrahl, in einem Drehkörper der Anordnung enthalten ist, durch den der Einleitkanal verschwenkbar ist, derart, daß der eingeleitete Fluid-Strahl wechselweise in Förderrichtung des fadenförmigen Materials oder entgegengesetzt dazu strömt. Durch die schwenkbare Anordnung des Einleitkanals in einem Drehkörper wird die Bauart besonders einfach. Es läßt sich in der Regel mit einer einzigen Dichtung an dem Drehkörper auskommen. Ferner wird erzielt, daß die Mündung der eingeleiteten Luft immer etwa an der gleichen Stelle des Fadenführungskanales erfolgt. Im Gegensatz dazu liegen die Mündungsstellen der beiden stationären, wahlweise einzuschaltenden Einleitkanäle bei der erwähnten, bekannten Düsenanordnung um ein relativ großes Stück auseinander, so daß auch die gesamte Düsenanordnung entsprechend mehr Raum beansprucht und relativ aufwendig wird.The invention is that the inlet channel for the fluid jet, for. B. for an air jet, is contained in a rotating body of the arrangement through which the inlet channel is pivotable, such that the introduced fluid jet flows alternately in the conveying direction of the thread-like material or in the opposite direction. The design is particularly simple due to the pivotable arrangement of the inlet channel in a rotating body. It can usually get by with a single seal on the rotating body. It is also achieved that the mouth of the introduced air always takes place approximately at the same point in the thread guide channel. In contrast, the mouths of the two stationary, optionally switchable inlet ducts in the known nozzle arrangement mentioned are a relatively large distance apart, so that the entire nozzle arrangement takes up a correspondingly larger amount of space and is relatively expensive.

Ferner läßt sich bei der erfindungsgemäßen .Anordnung erreichen, daß an dem Drehkörper zwei weitere Lufteingänge vorhanden und wechselweise anschließbar sind. An dem einen Lufteingang läßt sich beispielsweise unmittelbar die Druckluftquelle anschließen, an dem anderen das Hauptventil einer zugehörigen Webinaschine. Dadurch wird es möglich, daß bei Verwendung der Düsenanordnung als Bremsdüse die erforderliche Bremsluft nach dem Hauptventil der Webmaschine entnommen werden kann, wäh rend die z. B. bei Stillständen infolge Schußfadenbruchs erforderliche Einfädelung des gebrochenen Fadens in den Fadenzuführungskanal, welche in Eintragsrichtung des Schußfadens vorgenommen werden muß, unmittelbar aus dem Druckluftnetz entnommen werden kann. Bei Stillstand der Webmaschine und dem damit gekuppelten Schließen des Webmaschinenhauptventiles kann dann vermieden werden, daß Luft infolge eines Direktanschlusses der Düsenanordnung an das Druckluftnetz in die Umgebung ausströmen kann. Luftverluste lassen sich somit vermeiden.Furthermore, it can be achieved with the arrangement according to the invention that two further air inlets are present on the rotating body and can be connected alternately. For example, the compressed air source can be connected directly to one air inlet and the main valve of an associated weaving machine to the other. This makes it possible that when using the nozzle assembly as a brake nozzle, the required brake air can be removed after the main valve of the loom, while the z. B. at standstill due to weft breakage required threading of the broken thread into the thread feed channel, which must be carried out in the direction of entry of the weft thread, can be removed directly from the compressed air network. When the weaving machine is at a standstill and the main weaving machine valve is closed, it can be avoided that air can flow out into the environment as a result of a direct connection of the nozzle arrangement to the compressed air network. Air losses can thus be avoided.

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

  • Fig. 1 zeigt eine teilweise schematisierte Übersichtsdarstellung einer erfindungsgemäßen Düsenanordnung in Verbindung mit einer Web maschine,
  • Fig. 2 ist ein Schnitt nach Linie C-C in Fig. 1, in größerem Maßstab,
  • Fig. 3 ist ein Schnitt nach Linie A-A in Fig. 2,
  • Fig 4 ein Schnitt nach Linie B-B in Fig. 2 und
  • Fig. 5 ein der Fig. 4 entsprechender Schnitt bei anderer Position derTeile.
Further features result from the following description of exemplary embodiments in conjunction with the drawing and the claims.
  • 1 shows a partially schematic overview of a nozzle arrangement according to the invention in connection with a weaving machine,
  • Fig. 2 is a section along line CC in Fig. 1, on a larger scale,
  • Fig. 3 is a section along line AA in Fig. 2,
  • Fig. 4 is a section along line BB in Fig. 2 and
  • Fig. 5 is a section corresponding to Fig. 4 with the parts in a different position.

Bei der Webmaschine 1 nach Fig. 1 ist angenommen, daß es sich um eine Lufteintragsmaschine handelt, bei der der Schußfaden entlang der gestrichelt angedeuteten Schußlinie 2 in das Webfach eingetragen wird. Die nicht gezeichneten Eintragsdüsen sind über eine Luftzuführungsleitung 3 an eine Druckluftquelle 4, z. B. an ein Druckluftnetz angeschlossen. Die Leitung 3 enthält ein Filter 5 und ein Hauptventil 6. Bei Webbetrieb an der Maschine 1 werden alle Luftverbraucher, insbesondere die Eintragsdüsen über die Leitung 3 um das geöffnete Ventil 6 gespeist. Bei Stillstand der Webmaschine 1 etwa infolge Schußfadenbruches wird das Hauptventil 6 automatisch geschlossen zwecks Vermeidung von Luftverlusten.1 it is assumed that it is an air intake machine in which the weft thread is inserted into the shed along the weft line 2 indicated by dashed lines. The entry nozzles, not shown, are via an air supply line 3 to a compressed air source 4, for. B. connected to a compressed air network. The line 3 contains a filter 5 and a main valve 6. During weaving operation on the machine 1, all air consumers, in particular the entry nozzles, are fed via the line 3 around the opened valve 6. When the weaving machine 1 comes to a standstill, for example as a result of a weft break, the main valve 6 is automatically closed in order to avoid air losses.

Aus der Leitung 3 sind bei 32 eine ein Drosselorgan 42 enthaltende, direkte Luftzuführungsleitung 7 und nach dem Hauptventil 6 bei 31 eine ein Drosselorgan 48 enthaltende Bremsluft-Zuführungsleitung 28 abgezweigt und zu einer als Ganzes mit 8 bezeichneten, bei 35 bzw. 29 angeschlossenen Düsenanordnung geführt, welche an der Eintragsseite der Webmaschine 1 angeordnet ist.From line 3, a direct air supply line 7 containing a throttle element 42 is branched off at 32 and, after the main valve 6 at 31, a brake air supply line 28 containing a throttle element 48 is branched off and led to a nozzle arrangement, designated as a whole by 8, connected at 35 or 29 , which is arranged on the entry side of the weaving machine 1.

Die Anordnung 8 (Fig 2) enthält einen Düsenkörper 11, in welchem ein Fadenführungskanal 12 für einen in Richtung des Pfeiles 13 einzutragenden, in Fig. 1 nicht gezeichneten Schußfaden 14 angebracht ist. In dem Düsenkörper 11 ist ein um eine vertikale Achse 15 drehbarer Steuerschieber 16 unter Zwischenlage einer Dichtung 11 und einer Blattfeder 18 angeordnet. Der Steuerschieber 16 enthält einen Luftzuführungskanal, welcher aus einem vertikalen Abschnitt 21, einem horizontalen Abschnitt 22 und einem zentralen, vertikalen Abschnitt 23 besteht. Aus Ab schnitt 23 ist ein unter spitzem Winkel von z. B. 10" abmündender Lufteinleitkanal 24 abgezweigt.The arrangement 8 (FIG. 2) contains a nozzle body 11, in which a thread guide channel 12 for a weft thread 14 to be entered in the direction of arrow 13 and not shown in FIG. 1 is attached. In the nozzle body 11, a control slide 16 which is rotatable about a vertical axis 15 is arranged with the interposition of a seal 11 and a leaf spring 18. The control slide 16 contains an air supply duct, which consists of a vertical section 21, a horizontal section 22 and a central, vertical section 23. From section 23 is a at an acute angle of z. B. 10 "terminating air inlet duct 24.

Die Wirkungsweise ist folgende. Bei Webbetrieb der Maschine 1 ist die Düsenanordnung 8 in der Bremsposition nach Fig. 2-4. Das Hauptventil 6 ist geöffnet. Nunmehr strömt Luft über die Leitungen 3, 28 und den Einleitkanal 24 entsprechend Pfeilen 25, 41 in entgegengesetzter Richtung zum Schußfadeneintrag gemäß Pfeile 13. Der Schußfaden 14 wird daher unter der eingeleiteten Bremsluft einer leichten permanenten Bremswirkung bzw. Spannung unterworfen, wodurch er in Anlage auf einer auf der Eintragsseite der Webmaschine angeordneten Faden-Zumeß-Trommel 43 gehalten werden kann.The mode of action is as follows. When the machine 1 is weaving, the nozzle arrangement 8 is in the braking position according to FIGS. 2-4. The main valve 6 is open. Now air flows over the lines 3, 28 and the inlet channel 24 according to arrows 25, 41 in the opposite direction to the weft thread entry according to arrows 13. The weft thread 14 is therefore subjected to a slight permanent braking effect or tension under the brake air introduced, causing it to come into contact with the system a thread metering drum 43 arranged on the entry side of the weaving machine can be held.

Wenn z. B. in der Webmaschine 1 ein Schußfadenbruch eintritt, so wird die Maschine stillgesetzt und das Hauptventil 6 automatisch geschlossen. Nunmehr kann mittels des Hebels 34 der Steuerschieber 6 aus der Bremsposition nach 2 bis Fig. 4 um 180° in die Einfädelposition nach Fig 5 verschwenkt werden. In dieser ist die direkte Luftzuführungsleitung 7 angeschlossen. Die Kanalabschnitte 21 und 22 des Steuerschiebers 16 befinden sich in den Positionen 21a, 22a nach Fig 5. Es wird nunmehr Luft aus der Leitung 3 über die Abzweigstelle 32 und Leitung 7 unmittelbar aus dem Netz 4 in die Düsenanordnung 8 geleitet und in Richtung der Schußeintragspfeile 13 in den Fadenführungskanal 12 geleitet. Dadurch kann der abgebrochene Schußfaden in die Bremsdüse 8 bzw. den Fadenkanal 12 eingefädelt werden. Dabei wird er in Fig. 2 von links her in den Kanal 12 eingesaugt und den weiteren Teilen für den Schußeintrag zugeführt.If e.g. B. a weft break occurs in the weaving machine 1, the machine is stopped and the main valve 6 is automatically closed. Now the control slide 6 can be pivoted by means of the lever 34 from the braking position according to FIGS. 2 to 4 by 180 ° into the threading position according to FIG. 5. In this, the direct air supply line 7 is connected. The channel sections 21 and 22 of the control slide 16 are in the positions 21a, 22a according to FIG. 5. Air is now passed from line 3 via branch point 32 and line 7 directly from network 4 into nozzle arrangement 8 and in the direction of the weft insertion arrows 13 passed into the thread guide channel 12. As a result, the broken weft thread can be threaded into the brake nozzle 8 or the thread channel 12. It is sucked into the channel 12 from the left in FIG. 2 and fed to the other parts for the weft insertion.

Zum Verschwenken des Einleitkanales 24 aus der Bremsposition nach Fig. 4 in die Einfädelposition 24a nach Fig. ist ein sich über 180° erstreckender Ringschulterabschnitt 37 an dem Steuerschieber 16 ausgespart, der mit einem feststehenden Anschlagzapfen 38 zusammenarbeitet. Es wird auf diese Weise erzielt, daß die Düsenanordnung 8 während des Webbetriebes Luft aus der Leitung 3 über die Abzweigstelle 31 erhält, so daß bei Schußfadenbruch und Stillstand der Webmaschine 1 sofort auch die der Düsenanordnung 8 zugeführte Luft, die während des Webbetriebes als Bremsluft verwendet wird (Position nach Fig. 2 bis 4), unmittelbar bei Schließen des Hauptventils 6 ebenfalls abgesperrt wird.In order to pivot the inlet channel 24 from the braking position according to FIG. 4 into the threading position 24a according to FIG. 1, an annular shoulder section 37, which extends over 180 °, is recessed on the control slide 16 and cooperates with a fixed stop pin 38. It is achieved in this way that the nozzle arrangement 8 receives air from the line 3 via the branch point 31 during weaving operation, so that when the weft breaks and the loom 1 comes to a standstill the air supplied to the nozzle arrangement 8 is also used, which is used as brake air during weaving operation is (position according to Fig. 2 to 4), is also shut off immediately when the main valve 6 is closed.

Zum Einfädeln des Schußfadens in die Anordnung 8 wird in die Position nach Fig. 5 umgeschaltet, so daß nur in diesem Falle und für die Zeit des Einfädelns Luft unmittelbar aus dem Netz 4 bezogen werden kann. Wenn eingefädelt ist und der Webbetrieb wieder aufgenommen wird, wird die Düsenanordnung 8 mittels des Hebels 34 wieder aus der Position nach Fig. 5 in die Position nach Fig. 2 bis 4 (Bremsposition) zurückgestellt. In ihr läßt sich der zugeführte Schußfaden wieder ständig unter Spannung an der Zumeß-Trommei 43 während des Betriebes halten.To thread the weft thread into the arrangement 8, a switch is made to the position shown in FIG. 5, so that only in this case and for the time of threading air can be drawn directly from the network 4. When threading and weaving operation is resumed, the nozzle arrangement 8 is reset by means of the lever 34 from the position according to FIG. 5 to the position according to FIGS. 2 to 4 (braking position). In it, the supplied weft can be kept under tension on the metering drum 43 during operation.

Bei einer abgewandelten Ausführungsform ist auf die automatische, während des Webbetriebes eingeschaltete Leitung 28 verzichtet. Die Düse 8 enthält dann nur den verschwenkbaren Einleitkanal 24, dem über Leitung 7 direkt von der Luftquelle 4 her Luft zugeleitet werden kann. Der Kanal 12 kann auch z. B. bei der Achse 15 abgewinkelt sein. Bei einer weiteren Bauart ist der Verschluß-Stopfen 52 fortgelassen. Der Handhebel 34 ist beispielsweise von außen auf den Steuerschieber 16 aufgeklemmt. Leitung 7 ist in Fig. 2, 3 oben an den Kanal 23 angeschlossen, so daß die zuzuführende Luft auf diesem Wege eingeleitet wird. Leitung 28 ist in diesem Fall fortgelassen. Bei dieser Bauart entfallen dann auch die Verbindungskanäle 53, 54 in dem Düsenkörper 11. Statt Luft kann auch ein anderes Fluid, z. B. Wasser verwendet werden, was besonders bei Wasserstrahl-Webmaschinen in Betracht kommen kann.In a modified embodiment, the automatic line 28 which is switched on during weaving operation is dispensed with. The nozzle 8 then contains only the pivotable inlet channel 24, to which air can be fed directly from the air source 4 via line 7. The channel 12 can also, for. B. be angled at axis 15. In another design, the plug 52 is omitted. The hand lever 34 is clamped onto the control slide 16 from the outside, for example. Line 7 is connected in Fig. 2, 3 above to the channel 23, so that the air to be supplied is introduced in this way. Line 28 is omitted in this case. With this type of construction, the connecting channels 53, 54 in the nozzle body 11 are then also eliminated. Instead of air, another fluid, eg. B. water can be used, which can be particularly useful in water jet looms.

Claims (3)

1. Nozzle arrangement for a weaving machine, having a guide channel for filamentous material and a channel for introducing a fluid jet opening into the material-guiding channel under an acute angle, characterized in that the admission channel (24) for the fluid jet, e. g. an air jet, is contained in a rotary body (16) of the arrangement, by which the admission channel (24) is pivotable, in such a way that the introduced fluid jet flows alternately in transport direction (13) of the filamentous material (14) or in opposite direction.
2. Arrangement according to claim 1, characterized in that the arrangement comprises - besides the pivotable fluid admission channel (24) - two fluid supply channels (29, 35) alternately connectable by rotation of the rotary body (16), of which one (35) is connectable directly to a fluid source (4) for an associated weaving machine (1), while the other (29) is connectable to a main valve (6) of the weaving machine (1).
3. Arrangement according to claims 1 and 2, characterized in that, in a position of the rotary body (16) operative in transport direction (13) of the filamentous material (14), direct connection exists between the fluid source (4) and the admission channel (24), while in a position of the rotary body (16) operative counter (41) to the transport direction (13) of the filamentous material (14) connection exists between the main valve (6) of the weaving machine (1) and the admission channel (24).
EP80105387A 1980-09-09 1980-09-09 Jet arrangement for a loom Expired EP0047335B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP80105387A EP0047335B1 (en) 1980-09-09 1980-09-09 Jet arrangement for a loom
DE8080105387T DE3069800D1 (en) 1980-09-09 1980-09-09 Jet arrangement for a loom
SU813320783A SU1228791A3 (en) 1980-09-09 1981-08-20 Trhead guide to shuttleless loom
US06/296,647 US4410018A (en) 1980-09-09 1981-08-27 Nozzle structure for a weaving machine
JP56141618A JPS5777356A (en) 1980-09-09 1981-09-08 Nozzle arrangement of loom
CS816654A CS236775B2 (en) 1980-09-09 1981-09-09 Jet setting for weaving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP80105387A EP0047335B1 (en) 1980-09-09 1980-09-09 Jet arrangement for a loom

Publications (2)

Publication Number Publication Date
EP0047335A1 EP0047335A1 (en) 1982-03-17
EP0047335B1 true EP0047335B1 (en) 1984-12-12

Family

ID=8186783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80105387A Expired EP0047335B1 (en) 1980-09-09 1980-09-09 Jet arrangement for a loom

Country Status (6)

Country Link
US (1) US4410018A (en)
EP (1) EP0047335B1 (en)
JP (1) JPS5777356A (en)
CS (1) CS236775B2 (en)
DE (1) DE3069800D1 (en)
SU (1) SU1228791A3 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3267689D1 (en) * 1982-08-11 1986-01-09 Sulzer Ag Jet arrangement for a loom
JPS5966548A (en) * 1982-10-08 1984-04-16 株式会社豊田自動織機製作所 Apparatus for imparting tension to weft yarn in loom
US4658866A (en) * 1984-08-06 1987-04-21 Tsudakoma Corp. Method of and apparatus for removing and replacing a broken weft yarn
JPH0318527Y2 (en) * 1985-02-18 1991-04-18
BE1000598A4 (en) * 1987-05-20 1989-02-14 Picanol Nv PROCESS FOR THE RESTORATION OF A weft thread into a loom, weaving machine AND THOSE APPLYING THIS PROCESS.
JP2007239164A (en) * 2006-03-13 2007-09-20 Tsudakoma Corp Air-jet loom
GB2545218A (en) * 2015-12-09 2017-06-14 Griffith Textile Mach Ltd Improvements in or relating to weaving looms
CN105821565B (en) * 2016-06-07 2017-12-08 青岛百佳机械有限公司 A kind of jet loom for drawing weft yarn Weft selector

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7022965U (en) * Nickel & Mueller Gmbh Thread brake for textile machines
CH462061A (en) * 1966-07-19 1968-08-31 Strake Maschf Nv Device for guiding a thread
DE1710321B2 (en) * 1966-07-14 1973-10-31 N.V. Machinefabriek L. Te Strake, Deurne (Niederlande) Device, especially on weaving machines, for inserting a thread by means of the jet effect of a pressure medium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL6700828A (en) * 1967-01-18 1968-07-19
NL7003045A (en) * 1970-03-03 1971-09-07
CH508074A (en) * 1970-07-03 1971-05-31 Sulzer Ag Weft yarn feeder for a loom
CH562346A5 (en) * 1973-10-26 1975-05-30 Rueti Ag Maschf Storing a loop of yarn for weft insertion - using a flow of air accurately adjusted to requirements
JPS5314868A (en) * 1976-07-23 1978-02-09 Nissan Motor Device for inserting weft in fluiddjet loom
JPS5324458A (en) * 1976-08-10 1978-03-07 Nissan Motor Device for inserting weft in storage tube

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7022965U (en) * Nickel & Mueller Gmbh Thread brake for textile machines
DE1710321B2 (en) * 1966-07-14 1973-10-31 N.V. Machinefabriek L. Te Strake, Deurne (Niederlande) Device, especially on weaving machines, for inserting a thread by means of the jet effect of a pressure medium
CH462061A (en) * 1966-07-19 1968-08-31 Strake Maschf Nv Device for guiding a thread

Also Published As

Publication number Publication date
EP0047335A1 (en) 1982-03-17
DE3069800D1 (en) 1985-01-24
JPS5777356A (en) 1982-05-14
CS236775B2 (en) 1985-05-15
US4410018A (en) 1983-10-18
SU1228791A3 (en) 1986-04-30

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