EP0244911B1 - Thread suction gun and method for cooling its mouth piece - Google Patents

Thread suction gun and method for cooling its mouth piece Download PDF

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Publication number
EP0244911B1
EP0244911B1 EP19870200823 EP87200823A EP0244911B1 EP 0244911 B1 EP0244911 B1 EP 0244911B1 EP 19870200823 EP19870200823 EP 19870200823 EP 87200823 A EP87200823 A EP 87200823A EP 0244911 B1 EP0244911 B1 EP 0244911B1
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EP
European Patent Office
Prior art keywords
mouthpiece
suction gun
thread suction
thread
bores
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
EP19870200823
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German (de)
French (fr)
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EP0244911A3 (en
EP0244911A2 (en
Inventor
Hans Linz
Herbert Bleiber
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.)
Viscosuisse SA
Original Assignee
Rhone Poulenc Viscosuisse SA
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Publication date
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Publication of EP0244911A2 publication Critical patent/EP0244911A2/en
Publication of EP0244911A3 publication Critical patent/EP0244911A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/86—Arrangements for taking-up waste material before or after winding or depositing
    • B65H54/88—Arrangements for taking-up waste material before or after winding or depositing by means of pneumatic arrangements, e.g. suction guns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a thread feed gun, consisting of a housing with a connecting piece, a diffuser and a mouthpiece with an inlet eyelet and a method for cooling the mouthpiece.
  • Mobile thread feed guns are used to handle melt-spun synthetic threads.
  • a thread feed gun of the type is known. With this, the thread is caught below the spinneret and then placed on the thread-guiding or guiding machine parts such as reels, reel duos, deflection thread guides and finally thread spool.
  • Such suction guns usually work with a gaseous or liquid medium as a blowing agent and allow the manipulation of threads that run at speeds of up to 6000 m / min.
  • DE-A-24 19 298 also describes such a thread feed pistol with a mouthpiece which has a specially shaped inlet eyelet which makes it easier to catch a thread.
  • the mouthpiece which is too short, is not suitable for fast-moving machine parts in a close arrangement and for removing and replacing threads in the remaining spaces without errors and safely.
  • the object of the invention is to minimize the thread friction-related heating of the mouthpieces of thread pulling guns and to provide a mechanically reliable device that is safe for the operating personnel.
  • an extension tube is provided between the diffuser and the mouthpiece, which is surrounded over the entire length and the mouthpiece by a jacket which has a crane in the area of the inlet eyelet Bores is provided, and forms an annular space which is connected to a connecting piece via a connecting tube.
  • the extension tube has the advantage that manipulation between closely arranged machine parts is possible.
  • the jacket is preferably made of a plastic and thus has a protective effect on the preferably metal extension tube on the one hand and on fast-running machine parts (rollers etc.) on the other.
  • the annular space between the extension tube and the jacket serves as a flow channel for a cooling medium.
  • the outlet openings are provided in such a way that the direction of the emerging cooling medium has a component in the direction of the housing, as a result of which a disruption of the thread path in front of the mouthpiece is avoided.
  • the angle of the inclination of the bores measured from the axis of the extension tube 3 should be ⁇ 90 degrees, so that the flow points backwards away from the mouthpiece. This has the advantage that the cooling air cannot disrupt the thread feed in the area of the feed eyelet.
  • the mouthpiece of the thread feed gun consists of an eyelet holder and an inlet eyelet, but it can also be made from a single part.
  • Ceramic has preferably proven to be suitable as the material for the inlet eyelet. Material coated with ceramic, such as metal, is also suitable.
  • the inlet eyelet can also consist of a good heat-conducting material.
  • materials coated with a hard metal such as chrome are also suitable.
  • Surfaces coated with WC or SiC are also suitable, provided they have a friction-reducing structure.
  • the extension tube is provided with cooling fins in the area of the mouthpiece.
  • a thread take-up tube of the feed gun is designated as a diffuser 1.
  • a nozzle ring 2 is provided, which is connected to an extension tube 3.
  • the diffuser 1 and the extension tube 3 are surrounded by a housing 4 in the region of the nozzle ring 2.
  • a ring of, for example, 5 to 10 injector nozzles 5 is provided in the nozzle ring 2, which are adapted according to the propellant from gas or liquids.
  • the housing 4 and the nozzle ring 2 form a distribution chamber 6, which continues against a connecting piece 7.
  • the extension tube 3 carries at its free end a mouthpiece 10, the inside of which shows an inlet eyelet 11.
  • the extension tube 3 and the mouthpiece 10 are surrounded by a jacket 12, which preferably consists of a plastic.
  • annular space 13 is formed between the Extension tube 3 and the jacket 12, an annular space 13 is formed.
  • a connecting tube 8 is provided, which is connected to the annular space 13 on the extension tube 3 via a constriction 9.
  • the jacket 12 is interrupted in the area of the mouthpiece 10 by a ring of 8 to 20 holes 14, 14 ', the openings of which point away from the mouthpiece 10.
  • the cross section of the annular space 13 is large compared to the cross section of the diaphragm and the sum of the cross sections of the bores 14, 14 '.
  • the thread pulling gun is supplied with compressed air of 5 to 15 bar, in particular 12 to 14 bar, for example, via the connecting piece 7.
  • the majority of the compressed air flows through the injector nozzles 5 in a known manner, as a result of which a negative pressure is generated in the extension tube 3 and in the mouthpiece 10, which is able to suck threads through the diffuser 1.
  • a partial flow of the compressed air is introduced via the constriction 9 through the connecting pipe 8 into the annular space 13 and is carried forward to the mouthpiece 10. There, this partial flow can emerge again through a row of the mouthpiece 10, annularly enclosing bores 14, 14 'in the jacket 12.
  • This partial flow is used to dissipate the frictional heat generated as a result of the thread friction on the mouthpiece 10, so that the inlet eyelet 11 is effectively cooled in the mouthpiece 10.
  • the effect of this measure manifests itself in the fact that even after repeated thread application, neither the ceramic parts shatter nor the thread material within the mouthpiece 10 melts.
  • the thread feed gun according to the invention enables the handling of fast-moving ones in a particularly advantageous manner Textile threads especially for industrial use and the application of them to high-speed machine parts.
  • the use of the invention is suitable for melt-spun synthetic threads over 1100 dtex and final speeds of about 6000 m / min and more.

Landscapes

  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Coiling Of Filamentary Materials In General (AREA)
  • Nozzles (AREA)

Description

Die Erfindung betrifft eine Fadeneinzugspistole, bestehend aus einem Gehäuse mit einem Anschlusstutzen, einem Diffusor und einem Mundstück mit einer Einlauföse sowie einem Verfahren zum Kühlen des Mundstücks.The invention relates to a thread feed gun, consisting of a housing with a connecting piece, a diffuser and a mouthpiece with an inlet eyelet and a method for cooling the mouthpiece.

Zum Handhaben von schmelzgesponnenen Synthesefäden werden mobile Fadeneinzugspistolen verwendet. Nach der US-A-3 564 958 ist eine Fadeneinzugspistole der Art bekannt. Mit dieser wird der Faden unterhalb der Spinndüse gefangen und dann auf die fadenführenden oder -leitenden Maschinenteile wie Rollen, Rollenduos, Umlenkfadenführer und schliesslich Garnträger aufgelegt. Solche Absaugpistolen arbeiten üblicherweise mit einem gasförmigen oder flüssigen Medium als Treibmittel und erlauben die Manipulation von Fäden, welche bis zu 6000 m/min schnell laufen.Mobile thread feed guns are used to handle melt-spun synthetic threads. According to US-A-3 564 958 a thread feed gun of the type is known. With this, the thread is caught below the spinneret and then placed on the thread-guiding or guiding machine parts such as reels, reel duos, deflection thread guides and finally thread spool. Such suction guns usually work with a gaseous or liquid medium as a blowing agent and allow the manipulation of threads that run at speeds of up to 6000 m / min.

Auch die DE-A-24 19 298 beschreibt eine solche Fadeneinzugspistole mit einem Mundstück, welches eine speziell geformte Einlauföse aufweist, die das Einfangen eines Fadens erbeichtert.DE-A-24 19 298 also describes such a thread feed pistol with a mouthpiece which has a specially shaped inlet eyelet which makes it easier to catch a thread.

Die bekannten Fadeneinzugspistolen haben mehrere Nachteile. So ist das zu kurze Mundstück nicht geeignet, bei schnellläufenden Maschinenteilen in enger Anordnung, in den verbleibenden Räumen Fäden fehlerfrei und sicher abzunehmen und wieder aufzulegen.The known thread feed guns have several disadvantages. For example, the mouthpiece, which is too short, is not suitable for fast-moving machine parts in a close arrangement and for removing and replacing threads in the remaining spaces without errors and safely.

Ein weiterer gravierender Nachteil der bekannten Fadeneinzugpistolen bildet die starke Erhitzung des Mundstücks bei hohen Fadengeschwindigkeiten, was zum Anschmelzen der Fäden und bis zum Fadenbruch führen kann. Die entstehende Wärme ist weitgehend vom Titer, der Fadenspannung und seiner Geschwindigkeit abhängig.Another serious disadvantage of the known thread pulling guns is the strong heating of the mouthpiece at high thread speeds, which can cause the threads to melt and even break the thread. The heat generated largely depends on the titer, the thread tension and its speed.

Die Nachteile bekannter Fadeneinzugpistolen kommen besonders beim Spinnstrecken von Industriegarnen zum Vorschein.The disadvantages of known thread feed pistols are particularly apparent when spinning industrial yarns.

Im Titerbereich oberhalb 1000 dtex und bei Endgeschwindigkeiten über 4000 m/min treten infolge der Reibungseffkte so hohe Temperaturen auf, dass sogar Keramikmundstücke durch die Thermospannung zerspringen. Auch keramisierte Metallteile werden infolge der Fadenreibung ebenfalls so heiss, dass Fadenmaterial anschmelzen kann und bereits nach wenigen Einzugsvorgängen das Mundstück soweit verengt, dass ein weiteres Fadeneinziehen nicht mehr möglich ist.In the titer range above 1000 dtex and at top speeds above 4000 m / min, temperatures are so high due to the friction effects that even ceramic mouthpieces shatter due to the thermal voltage. Ceramicized metal parts also become so hot due to the thread friction that thread material can melt and, after just a few pulling-in operations, the mouthpiece is narrowed to such an extent that further thread pulling is no longer possible.

Aufgabe der Erfindung ist es, die fadenreibungsbedingte Erhitzung der Mundstücke von Fadeneinzugpistolen zu minimieren und eine mechanisch zuverlässige und für das Bedienungspersonal sichere Vorrichtung zur Verfügung zu stellen.The object of the invention is to minimize the thread friction-related heating of the mouthpieces of thread pulling guns and to provide a mechanically reliable device that is safe for the operating personnel.

Die vorgenannte Aufgabe wird bei einer Einrichtung der eingangs genannten Art erfindungsgemäss dadurch gelöst, dass zwischen dem Diffusor und dem Mundstück ein Verlängerungsrohr vorgesehen ist, welches über die ganze Länge und das Mundstück von einem Mantel umgeben ist, der im Bereich der Einlauföse mit einem Krant von Bohrungen versehen ist, und einen Ringraum bildet, der über ein Verbindungsrohr mit einem Anschlusstutzen verbunden ist.The above object is achieved according to the invention in a device of the type mentioned at the outset in that an extension tube is provided between the diffuser and the mouthpiece, which is surrounded over the entire length and the mouthpiece by a jacket which has a crane in the area of the inlet eyelet Bores is provided, and forms an annular space which is connected to a connecting piece via a connecting tube.

Das Verlängerungsrohr hat den Vorteil, dass ein Manipulieren zwischen eng angeordneten Maschinenteilen möglich ist. Der Mantel besteht bevorzugt aus einem Kunststoff und wirkt dadurch schützend auf das bevorzugt metallene Verlängerungsrohr einerseits und auf schnellaufende Maschinenteile (Rollen etc.) andererseits. Der Ringraum zwischen dem Verlängerungsrohr und dem Mantel dient als Strömungskanal für ein Kühlmedium.The extension tube has the advantage that manipulation between closely arranged machine parts is possible. The jacket is preferably made of a plastic and thus has a protective effect on the preferably metal extension tube on the one hand and on fast-running machine parts (rollers etc.) on the other. The annular space between the extension tube and the jacket serves as a flow channel for a cooling medium.

Es ist besonders vorteilhaft den Ringraum über ein Rohr mit dem Anschlussstutzen zu verbinden. Dadurch kann ein Teil des Arbeitsmediums vor der Injektordüse vom Hauptstrom abgezweigt und dem Mundstück der Fadeneinzugpistole zur Kühlung zugeführt werden. Als Arbeitsmedium dient ein Gas, vorzugsweise Luft. Es kann aber auch eine Flüssigkeit, beispielsweise Wasser, als Treib- und Kühlmittel verwendet werden. Bei der Verwendung von Flüssigkeiten müssen Vorkehrungen getroffen werden, das austretende Kühlmittel ausserhalb der Bohrungen 14, 14′ zu sammeln und mit Hilfe einer zweiten Leitung (nicht dargestellt) in die Abfalleitung unterhalb des Diffusors 1 zurückzuführen.It is particularly advantageous to connect the annular space to the connecting piece via a pipe. This allows part of the working medium to be branched off from the main flow in front of the injector nozzle and from the mouthpiece of the thread feed gun be supplied for cooling. A gas, preferably air, serves as the working medium. However, a liquid, for example water, can also be used as a propellant and coolant. When using liquids, precautions must be taken to collect the escaping coolant outside the bores 14, 14 'and return them to the waste line below the diffuser 1 with the aid of a second line (not shown).

Es ist zweckmässig, im By-pass-Rohr als Verengung eine Blende vorzusehen.It is advisable to provide a diaphragm in the by-pass pipe as a constriction.

Im Bereich des Mundstücks ist es zweckmässig, einen Kranz von Bohrungen für den ungehinderten Austritt des Kühlmediums vorzusehen.In the area of the mouthpiece, it is expedient to provide a ring of bores for the unhindered exit of the cooling medium.

Die Austrittsöffnungen sind so vorgesehen, dass die Richtung des austretenden Kühlmediums eine Komponente in Richtung des Gehäuses aufweist, wodurch eine Störung des Fadenlaufs vor dem Mundstück vermieden wird.The outlet openings are provided in such a way that the direction of the emerging cooling medium has a component in the direction of the housing, as a result of which a disruption of the thread path in front of the mouthpiece is avoided.

Der Winkel der Neigung der Bohrungen gemessen von der Achse des Verlängerungsrohres 3 soll ≧ 90 Grad betragen, so dass die Strömung vom Mundstück weg nach hinten weist. Das hat den Vorteil, dass die Kühlluft den Fadeneinzug im Bereich der Einzugöse nicht zu stören vermag.The angle of the inclination of the bores measured from the axis of the extension tube 3 should be ≧ 90 degrees, so that the flow points backwards away from the mouthpiece. This has the advantage that the cooling air cannot disrupt the thread feed in the area of the feed eyelet.

Es ist zweckmässig, für die Bohrungen gegen die Horizontale, einen Winkel von 120 bis 150 Grad, insbesondere von 130 bis 140 Grad, bevorzugt von 145 Grad zu wählen.It is expedient to choose an angle of 120 to 150 degrees, in particular 130 to 140 degrees, preferably 145 degrees, for the bores against the horizontal.

Das Mundstück der Fadeneinzugpistole besteht in einer bevorzugten Ausführung aus einem Oesenhalter und einer Einlauföse, es kann aber auch aus einem einzigen,Teil gefertigt sein.In a preferred embodiment, the mouthpiece of the thread feed gun consists of an eyelet holder and an inlet eyelet, but it can also be made from a single part.

Als Material für die Einlauföse hat sich bevorzugt Keramik als geeignet erwiesen. Aber auch mit Keramik beschichtetes Material wie Metall ist geeignet.Ceramic has preferably proven to be suitable as the material for the inlet eyelet. Material coated with ceramic, such as metal, is also suitable.

Die Einlauföse kann aber auch aus einem gut wärmeleitenden Werkstoff bestehen. Geeignet sind aber auch mit einem Hartmetall wie Chrom beschichtete Werkstoffe. Auch mit WC oder SiC beschichtete Oberflächen sind geeignet, sofern sie eine reibungsvermindernde Struktur aufweisen.The inlet eyelet can also consist of a good heat-conducting material. However, materials coated with a hard metal such as chrome are also suitable. Surfaces coated with WC or SiC are also suitable, provided they have a friction-reducing structure.

Zur Verbesserung der Kühlwirkung ist das Verlängerungsrohr im Bereich des Mundstücks mit Kühlrippen versehen.To improve the cooling effect, the extension tube is provided with cooling fins in the area of the mouthpiece.

Die vorliegende Erfindung soll anhand von Zeichnungen näher beschrieben werden.The present invention will be described in more detail with reference to drawings.

Es zeigen:

  • Fig. 1 einen Längsschnitt durch eine Fadeneinzugpistole mit verlängertem Mundstück
  • Fig. 2 einen Querschnitt durch das Verlängerungsrohr im Bereich des Mundstücks
Show it:
  • Fig. 1 shows a longitudinal section through a thread feed gun with an extended mouthpiece
  • Fig. 2 shows a cross section through the extension tube in the region of the mouthpiece

Gemäss Fig. 1 ist ein Fadenaufnahmerohr der Einzugpistole als Diffusor 1 bezeichnet. Am geschlossenen Ende des Diffusors 1 ist ein Düsenring 2 vorgesehen, welcher mit einem Verlängerungsrohr 3 verbunden ist. Der Diffusor 1 und das Verlängerungsrohr 3 sind im Bereich des Düsenrings 2 von einem Gehäuse 4 umgeben. Im Düsenring 2 ist ein Kranz von beispielsweise 5 bis 10 Injektordüsen 5 vorgesehen, welche entsprechend dem Treibmittel aus Gas oder Flüssigkeiten angepasst sind. Das Gehäuse 4 und der Düsenring 2 bilden eine Verteilkammer 6, welche sich gegen einen Anschlussstutzen 7 fortsetzt. Das Verlängerungsrohr 3 trägt an seinem freien Ende ein Mundstück 10, dessen Innenseite eine Einlauföse 11 zeigt. Das Verlängerungsrohr 3 und das Mundstück 10 sind von einem Mantel 12 umgeben, welcher bevorzugt aus einem Kunststoff besteht. Zwischen dem Verlängerungsrohr 3 und dem Mantel 12 wird ein Ringraum 13 gebildet. An der Gegenseite des Anschlussstutzen 7 ist ein Verbindungsrohr 8 vorgesehen, welches über eine Verengung 9 mit dem Ringraum 13 am Verlängerungsrohr 3 in Verbindung steht. Der Mantel 12 ist im Bereich des Mundstücks 10 durch einen Kranz von 8 bis 20 Bohrungen 14, 14′ unterbrochen, deren Oeffnungen vom Mundstück 10 wegweisen. Der Querschnitt des Ringraums 13 ist gross gegenüber dem Querschnitt der Blende und der Summe der Querschnitte der Bohrungen 14, 14′.1, a thread take-up tube of the feed gun is designated as a diffuser 1. At the closed end of the diffuser 1, a nozzle ring 2 is provided, which is connected to an extension tube 3. The diffuser 1 and the extension tube 3 are surrounded by a housing 4 in the region of the nozzle ring 2. A ring of, for example, 5 to 10 injector nozzles 5 is provided in the nozzle ring 2, which are adapted according to the propellant from gas or liquids. The housing 4 and the nozzle ring 2 form a distribution chamber 6, which continues against a connecting piece 7. The extension tube 3 carries at its free end a mouthpiece 10, the inside of which shows an inlet eyelet 11. The extension tube 3 and the mouthpiece 10 are surrounded by a jacket 12, which preferably consists of a plastic. Between the Extension tube 3 and the jacket 12, an annular space 13 is formed. On the opposite side of the connecting piece 7, a connecting tube 8 is provided, which is connected to the annular space 13 on the extension tube 3 via a constriction 9. The jacket 12 is interrupted in the area of the mouthpiece 10 by a ring of 8 to 20 holes 14, 14 ', the openings of which point away from the mouthpiece 10. The cross section of the annular space 13 is large compared to the cross section of the diaphragm and the sum of the cross sections of the bores 14, 14 '.

Nach Fig. 2 ist im Querschnitt ein Kranz von Kühlrippen 15 um das am Verlängerungsrohr 3 befestigte Mundstück 10 dargestellt.2 shows a cross section of a ring of cooling fins 15 around the mouthpiece 10 attached to the extension tube 3.

Im Betrieb wird die Fadeneinzugpistole über den Anschlussstutzen 7 mit beispielsweise Druckluft von 5 bis 15 bar, insbesondere 12 bis 14 bar beaufschlagt. Die Hauptmenge der Druckluft durchströmt in bekannter Weise die Injektordüsen 5, wodurch ein Unterdruck im Verlängerungsrohr 3 und im Mundstück 10 erzeugt wird, welcher in der Lage ist, Fäden durch den Diffusor 1 abzusaugen. Ein Teilstrom der Druckluft wird über die Verengung 9 durch das Verbindungsrohr 8 in den Ringraum 13 eingeleitet und nach vorn bis zum Mundstück 10 geführt. Dort kann dieser Teilstrom durch eine Reihe das Mundstück 10 ringförmig umschliessender Bohrungen 14, 14′ im Mantel 12 wieder austreten. Dieser Teilstrom wird zur Abfuhr der infolge der Fadenreibung am Mundstück 10 erzeugten Reibungswärme benutzt, so dass die Einlauföse 11 im Mundstück 10 wirksam gekühlt wird. Die Wirkung dieser Massnahme äussert sich darin, dass auch nach wiederholtem Fadenanlegen weder die Keramikteile zerspringen noch das Fadenmaterial innerhalb des Mundstücks 10 anschmilzt.In operation, the thread pulling gun is supplied with compressed air of 5 to 15 bar, in particular 12 to 14 bar, for example, via the connecting piece 7. The majority of the compressed air flows through the injector nozzles 5 in a known manner, as a result of which a negative pressure is generated in the extension tube 3 and in the mouthpiece 10, which is able to suck threads through the diffuser 1. A partial flow of the compressed air is introduced via the constriction 9 through the connecting pipe 8 into the annular space 13 and is carried forward to the mouthpiece 10. There, this partial flow can emerge again through a row of the mouthpiece 10, annularly enclosing bores 14, 14 'in the jacket 12. This partial flow is used to dissipate the frictional heat generated as a result of the thread friction on the mouthpiece 10, so that the inlet eyelet 11 is effectively cooled in the mouthpiece 10. The effect of this measure manifests itself in the fact that even after repeated thread application, neither the ceramic parts shatter nor the thread material within the mouthpiece 10 melts.

Die erfindungsgemässe Fadeneinzugpistole ermöglicht in besonders vorteilhafter Weise das Handhaben von schnellaufenden Textilfäden vor allem für industriellen Einsatz und das Anlegen derselben auf schnellaufende Maschinenteile.The thread feed gun according to the invention enables the handling of fast-moving ones in a particularly advantageous manner Textile threads especially for industrial use and the application of them to high-speed machine parts.

Insbesondere ist der Einsatz der Erfindung für schmelzgesponnene Synthesefäden über 1100 dtex und Endgeschwindigkeiten von etwa 6000 m/min und mehr geeignet.In particular, the use of the invention is suitable for melt-spun synthetic threads over 1100 dtex and final speeds of about 6000 m / min and more.

Claims (8)

1. A thread suction gun consisting of a casing (4) with a connecting tube (7), a diffuser (1) and a mouthpiece (10) with an intake eyelet (11), characterized in that between the diffuser (1) and the mouthpiece (10) provision is made for an extension tube (3) that is surrounded over its whole length, together with the mouthpiece (10), by a sleeve (12) which is provided in the zone of the intake eyelet (11) with a ring of bores (14, 14′) and which forms an annular space (13) connected to the connecting tube (7) via a junction tube (8).
2. A thread suction gun according to claim 1, characterized in that inside the junction tube (8), provision is made for a stop (9).
3. A thread suction gun according to claim 1, characterized in that the apertures of the bores (14, 14′) point away from the mouthpiece (10) at an angle of ≧ 90 degrees.
4. A thread suction gun according to claim 1, characterized in that the bores form an angle between 120 and 150 degrees with the horizontal.
5. A thread suction gun according to claims 1 to 4, characterized in that the intake eyelet (11) consists of a ceramic material or of a metal coated with a ceramic material.
6. A thread suction gun according to claims 1 to 5, characterized in that the intake eyelet (11) consists of a material with a high heat conductivity.
7. A thread suction gun according to claims 1 to 6, characterized in that the mouthpiece (10) is provided with cooling fins (15).
8. A method for cooling of the mouthpiece (10) of the thread suction gun in accordance with claims 1 to 7, characterized in that part of the flow of the operating medium is carried from the connecting tube (7) via the junction tube (8), the annular space (13) and the bores (14, 14′).
EP19870200823 1986-05-09 1987-05-04 Thread suction gun and method for cooling its mouth piece Expired - Lifetime EP0244911B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH191186 1986-05-09
CH1911/86 1986-05-09

Publications (3)

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EP0244911A2 EP0244911A2 (en) 1987-11-11
EP0244911A3 EP0244911A3 (en) 1988-07-27
EP0244911B1 true EP0244911B1 (en) 1991-04-03

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EP19870200823 Expired - Lifetime EP0244911B1 (en) 1986-05-09 1987-05-04 Thread suction gun and method for cooling its mouth piece

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EP (1) EP0244911B1 (en)
JP (2) JPS62269856A (en)
DE (1) DE3769004D1 (en)

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CN105668327B (en) * 2014-11-19 2019-09-24 欧瑞康纺织有限及两合公司 Yarn suction unit

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BE759801A (en) * 1969-12-04 1971-05-17 Snia Viscosa IMPROVEMENTS MADE TO DEVICES FOR COLLECTING, VACUUMING AND DISPOSING OF TEXTILE FILAMENTS AND THREADS, AS WELL AS THE PERFECTED DEVICES OBTAINED
DE2419298B2 (en) * 1974-04-22 1977-09-01 Societe de la Viscose Suisse, Emmenbrücke (Schweiz) METHOD AND DEVICE FOR TAKING UP HIGH-SPEED FADS ON SPINNING DEVICES BY A THREAD TAKING UP DEVICE
DE2722810C2 (en) * 1977-05-20 1985-11-28 Neumünstersche Maschinen- und Apparatebau GmbH (Neumag), 2350 Neumünster Device for the pneumatic catching and guiding of threads
JPS5553552U (en) * 1978-09-30 1980-04-10
EP0146898B1 (en) * 1983-12-15 1988-10-12 Toray Industries, Inc. Yarn-threading method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220356038A1 (en) * 2019-06-19 2022-11-10 Heberlein Ag Suction device for a textile machine, textile machine with a suction device, use of two cyclone elements, and method for suctioning yarns

Also Published As

Publication number Publication date
EP0244911A3 (en) 1988-07-27
JPH0738056U (en) 1995-07-14
DE3769004D1 (en) 1991-05-08
EP0244911A2 (en) 1987-11-11
JPS62269856A (en) 1987-11-24

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