EP0593993A1 - Device for attaching yarn bobbins - Google Patents

Device for attaching yarn bobbins Download PDF

Info

Publication number
EP0593993A1
EP0593993A1 EP93116288A EP93116288A EP0593993A1 EP 0593993 A1 EP0593993 A1 EP 0593993A1 EP 93116288 A EP93116288 A EP 93116288A EP 93116288 A EP93116288 A EP 93116288A EP 0593993 A1 EP0593993 A1 EP 0593993A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
yarn
thread
air
mandrels
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.)
Withdrawn
Application number
EP93116288A
Other languages
German (de)
French (fr)
Inventor
Eduard Heusser
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.)
Zellweger Luwa AG
Original Assignee
Zellweger Uster AG
Zellweger Luwa 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 Zellweger Uster AG, Zellweger Luwa AG filed Critical Zellweger Uster AG
Publication of EP0593993A1 publication Critical patent/EP0593993A1/en
Withdrawn legal-status Critical Current

Links

Images

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
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/02—Methods or apparatus in which packages do not rotate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/16—Devices for entraining material by flow of liquids or gases, e.g. air-blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/105—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices the material being subjected to the action of a fluid
    • 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 present invention relates to a slip-on device for yarn spools, with push-on spikes and with thread brakes arranged after the spools in the thread running direction.
  • slip-on devices are widely used in the textile industry and are used, for example, as so-called slip-on creels or bobbin supports for bobbins from which the yarn is drawn off for processing or testing purposes.
  • An example of the latter application are textile laboratories, in which various parameters of yarns, such as fluctuations in mass, hairiness, fineness, maximum tensile strength and elongation, are examined.
  • Known systems for these tests are the USTER TESTER and the USTER TENSORAPID (USTER - registered trademark of Zellweger Uster AG), which pull the yarn to be examined from yarn bobbins held on a bobbin wagon.
  • a coil wagon of this type is described in Swiss Patent Application No. 02072/90.
  • the push-on pins are rod-shaped, and the Thread brakes are located about 30 cm or more from the spools. This creates a relatively large balloon during yarn take-off, which can become so large with increasing take-off speed that the bobbins must be arranged at a greater mutual distance than required in terms of diameter, which is undesirable for reasons of both productivity and cost.
  • the invention is now to provide a slip-on device of the type mentioned in the introduction, in which the thread balloon formed is so small that it does not influence the mutual spacing of the bobbins.
  • the push-on mandrels are tubular and the thread brakes are arranged on the push-on mandrels or in the immediate vicinity thereof, and in that the yarn is drawn overhead into the tubular push-on mandrels and in these to the thread brakes.
  • the thread balloon can of course not be larger than the inside diameter of the tube.
  • the space requirement of such a plug-on device is reduced considerably, which has a favorable effect on costs.
  • a first preferred embodiment is characterized in that the thread brakes are pneumatic brake nozzles.
  • a second preferred embodiment is characterized in that each brake nozzle is assigned a transport nozzle for the yarn acting in the withdrawal direction of the yarn.
  • This transport nozzle increases the handling of the device extremely, by threading the yarn into the thread brake and transporting it further to the corresponding testing device, thereby automating these manipulations and thereby significantly simplifying them.
  • Fig. 1 shows a partial side view of a support rod 1, which forms part of a bobbin frame or bobbin, not shown, and is used for receiving arbors 2 for bobbins G.
  • the arbors 2 are inserted into the holding rod 1 and fixed in this.
  • the yarn Y wound on the yarn packages G is shown by the bobbins G withdrawn overhead, is guided through the mandrels 2 and runs from these to a positioning, withdrawal or feeding device, not shown, of a testing or processing device for the yarn.
  • FIG. 2 shows the structure of the arbor 2. This is formed by a tube made of a suitable material such as brass, on one end of which a yarn spool G is attached. The yarn Y to be drawn off is taken off from the bobbin G and is guided through the tube forming the mandrel 2 in the take-off direction (arrow A) to the other end of the tube. At this other end of the tube 2, a nozzle body is inserted, which consists of a brake nozzle 3 and a transport nozzle 4. These two nozzles are each symbolized in FIG. 2 by an air connection 5 or 6 and an air duct 7 or 8 oriented obliquely to the axis of the plug-on mandrel 2 and thus obliquely to the yarn Y.
  • a nozzle body is inserted, which consists of a brake nozzle 3 and a transport nozzle 4.
  • the brake nozzle 3 has the advantage over a mechanical thread brake that it transfers a tension to the thread Y even when the thread is at a standstill.
  • the transport nozzle 4 serves on the one hand for the transport of the thread Y to the downstream device and on the other hand for threading the beginning of the thread of a new bobbin G into the arbor 2 and into the nozzle body formed by the two nozzles 3 and 4.
  • the nozzle body formed from the two nozzles 3 and 4 is specifically designed, whether it consists of two individual nozzles, for example, as in FIG. 2, or how many holes 7, 8 are to be provided distributed over the interior of the nozzle body, or how the inclination of these holes dimensioned relative to the axis of the arbor is variable within wide limits.
  • What is essential is the hollow plug-on mandrel 2, the overhead take-off of the thread Y from the yarn package G and the nozzle body in the region of the other end of the plug-on mandrel 2. It is also not important how the nozzle body is attached to the plug-on mandrel 2. It can be inserted into the plug-in mandrel as in FIG. 2, that is to say pressed in, for example, but it could also be part of a sleeve which can be screwed onto the plug-on mandrel 2 or can be coupled to it in another way.
  • the nozzle body mentioned consists of three nested sleeves, namely a central ridge 9 and two inner sleeves 11 which have gradations 10 adjoining them on both sides, and two outer sleeves 12 which extend over the gradations 10 of the inner sleeve 11 are pushed.
  • an annular gap 13 corresponding to the bores 7 and 8 (FIG. 2) is formed between the outer wall of the gradations 10 and the inner wall of the outer bushes 12, and on the other hand there is a distance between the web 9 and the end faces of the outer bushes 12 facing them, so that an annular chamber 14 is formed on both sides of the web 9.
  • the two air connections 5 and 6 (FIG.
  • a controllable throttle 16 for adjusting the air pressure of the brake nozzle 3 for the purpose of optimal adaptation to the respective yarn Y is arranged in the air line to the connection 5 feeding the brake nozzle 3.
  • the distance between the outer wall of the gradations 10 and the inner wall of the outer bushes 12, that is to say the “wall thickness” of the gap 13, is a few, preferably about 0.2 to 0.3, centimeters.
  • the air supplied via the connections 5 and 6 enters the chambers 14 and from there into the annular gaps 13 and flows essentially parallel to the thread Y into the tubular plug-in mandrel 2. Since the air flows along the tube wall, the air flow rate shown in FIG. 3 shown nozzle essentially a so-called Coanda nozzle, which is characterized by a low noise level and by the structure of a large volume of air. Of course, another nozzle, for example an injector nozzle, can also be used.

Landscapes

  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Unwinding Of Filamentary Materials (AREA)

Abstract

The attachment device contains tubular attachment mandrels (2) and thread brakes (3) arranged on these. The yarn (Y) is drawn off overhead from the yarn bobbins (G) and is guided through the bores of the attachment mandrels (2) to the thread brakes (3). The thread brakes are pneumatic braking nozzles, and each braking nozzle is assigned a transport nozzle (4) acting in the draw-off direction (A) of the yarn (Y) and intended for the latter. <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Aufsteckvorrichtung für Garnspulen, mit Aufsteckdornen und mit in Fadenlaufrichtung nach den Spulen angeordneten Fadenbremsen.The present invention relates to a slip-on device for yarn spools, with push-on spikes and with thread brakes arranged after the spools in the thread running direction.

Derartige Aufsteckvorrichtungen sind in der Textilindustrie weit verbreitet und werden beispielsweise als sogenannte Aufsteckgatter oder Spulenträger für Garnspulen verwendet, von denen das Garn für Verarbeitungs- oder Prüfzwecke abgezogen wird. Ein Beispiel für die letztere Applikation sind Textillabors, in denen verschiedene Parameter von Garnen, wie beispielsweie Masseschwankungen, Haarigkeit, Feinheit, Höchstzugkraft und Dehnung untersucht werden. Bekannte Anlagen für diese Untersuchungen sind der USTER TESTER und der USTER TENSORAPID (USTER - eingetragenes Warenzeichen der Zellweger Uster AG), die das zu untersuchende Garn von auf einem Spulenwagen gehaltenen Garnspulen abziehen. Ein Spulenwagen dieser Art ist in der CH-Patentanmeldung Nr. 02072/90 beschrieben.Such slip-on devices are widely used in the textile industry and are used, for example, as so-called slip-on creels or bobbin supports for bobbins from which the yarn is drawn off for processing or testing purposes. An example of the latter application are textile laboratories, in which various parameters of yarns, such as fluctuations in mass, hairiness, fineness, maximum tensile strength and elongation, are examined. Known systems for these tests are the USTER TESTER and the USTER TENSORAPID (USTER - registered trademark of Zellweger Uster AG), which pull the yarn to be examined from yarn bobbins held on a bobbin wagon. A coil wagon of this type is described in Swiss Patent Application No. 02072/90.

Bei diesem Spulenwagen und auch bei den bekannten Aufsteckgattern sind die Aufsteckdorne stangenartig ausgebildet, und die Fadenbremsen sind in einer Entfernung von etwa 30 cm oder mehr von den Spulen angeordnet. Dadurch entsteht beim Garnabzug ein relativ grosser Ballon, der mit steigender Abzugsgeschwindigkeit so gross werden kann, dass die Spulen in einem grösseren gegenseitigen Abstand als vom Durchmesser her erforderlich angeordnet werden müssen, was sowohl aus Produktivitäts- als auch aus Kostengründen unerwünscht ist.In this coil carriage and also in the known slip-on gates, the push-on pins are rod-shaped, and the Thread brakes are located about 30 cm or more from the spools. This creates a relatively large balloon during yarn take-off, which can become so large with increasing take-off speed that the bobbins must be arranged at a greater mutual distance than required in terms of diameter, which is undesirable for reasons of both productivity and cost.

Durch die Erfindung soll nun eine Aufsteckvorrichtung der eingangs genannten Art angegeben werden, bei der der entstehende Fadenballon so klein ist, dass er den gegenseitigen Abstand der Spulen nicht beeinflusst.The invention is now to provide a slip-on device of the type mentioned in the introduction, in which the thread balloon formed is so small that it does not influence the mutual spacing of the bobbins.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass die Aufsteckdorne rohrförmig ausgebildet und die Fadenbremsen an den Aufsteckdornen oder im unmittelbaren Anschluss an diese angeordnet sind, und dass das Garn beim Abzug von der Spule überkopf in die rohrförmigen Aufsteckdorne und in diesen zu den Fadenbremsen geführt ist.This object is achieved according to the invention in that the push-on mandrels are tubular and the thread brakes are arranged on the push-on mandrels or in the immediate vicinity thereof, and in that the yarn is drawn overhead into the tubular push-on mandrels and in these to the thread brakes.

Dadurch, dass das Garn zwischen der Spule und der Fadenbremse in einem Rohr geführt ist, kann selbstverständlich der Fadenballon nicht grösser sein als der Innendurchmesser des Rohres. Ausserdem verringert sich der Platzbedarf einer derartigen Aufsteckvorrichtung ganz beträchtlich, was sich auf die Kosten günstig auswirkt.Because the yarn is guided in a tube between the bobbin and the thread brake, the thread balloon can of course not be larger than the inside diameter of the tube. In addition, the space requirement of such a plug-on device is reduced considerably, which has a favorable effect on costs.

Eine erste bevorzugte Ausführungsform ist dadurch gekennzeichnet, dass die Fadenbremsen pneumatische Bremsdüsen sind. Eine zweite bevorzugte Ausführungsform ist dadurch gekennzeichnet, dass jeder Bremsdüse eine in Abzugrichtung des Garns wirkende Transportdüse für dieses zugeordnet ist.A first preferred embodiment is characterized in that the thread brakes are pneumatic brake nozzles. A second preferred embodiment is characterized in that each brake nozzle is assigned a transport nozzle for the yarn acting in the withdrawal direction of the yarn.

Diese Transportdüse erhöht das Handling der Vorrichtung ganz ausserordentlich, indem sie das Einfädeln des Garns in die Fadenbremse und dessen Weitertransport an das entsprechende Prüfgerät vornimmt, wodurch diese Manipulationen automatisiert und dadurch bedeutend vereinfacht werden.This transport nozzle increases the handling of the device extremely, by threading the yarn into the thread brake and transporting it further to the corresponding testing device, thereby automating these manipulations and thereby significantly simplifying them.

Im folgenden wird die Erfindung anhand eines Ausführungsbeispiels und der Zeichnungen näher erläutert; es zeigt:

Fig. 1
einen schematischen Ausschnitt aus einem Spulengestell,
Fig. 2
einen Längsschnitt durch einen Aufsteckdorn des Aufsteckgatters von Fig. 1; und
Fig. 3
eine Detailvariante des Aufsteckdorns von Fig. 2.
The invention is explained in more detail below with the aid of an exemplary embodiment and the drawings; it shows:
Fig. 1
a schematic section of a coil frame,
Fig. 2
a longitudinal section through an arbor of the Aufsteckgat of Fig. 1; and
Fig. 3
a detailed variant of the arbor of Fig. 2nd

Fig. 1 zeigt eine ausschnittweise Seitenansicht einer Haltestange 1, die Teil eines nicht dargestellten Spulengestells oder Spulengatters bildet und zur Aufnahme von Aufsteckdornen 2 für Garnspulen G dient. Die Aufsteckdorne 2 sind in die Haltestange 1 eingesteckt und in dieser fixiert. Das auf den Garnspulen G aufgespulte Garn Y wird darstellungsgemäss von den Spulen G überkopf abgezogen, ist durch die Aufsteckdorne 2 geführt und läuft von diesen zu einer nicht dargestellten Positionier-, Abzugs- oder Zuführeinrichtung einer Prüf- oder Verarbeitungseinrichtung für das Garn.Fig. 1 shows a partial side view of a support rod 1, which forms part of a bobbin frame or bobbin, not shown, and is used for receiving arbors 2 for bobbins G. The arbors 2 are inserted into the holding rod 1 and fixed in this. The yarn Y wound on the yarn packages G is shown by the bobbins G withdrawn overhead, is guided through the mandrels 2 and runs from these to a positioning, withdrawal or feeding device, not shown, of a testing or processing device for the yarn.

In Fig. 2 ist der Aufbau des Aufsteckdorns 2 dargestellt. Dieser ist durch ein Rohr aus einem geeigneten Material wie beispeilsweise Messing gebildet, auf dessen eines Ende eine Garnspule G aufgesteckt ist. Das abzuziehende Garn Y wird von der Spule G überkopf abgezogen und wird durch das den Aufsteckdorn 2 bildende Rohr in Abzugsrichtung (Pfeil A) an das andere Ende des Rohres geführt. An diesem anderen Ende des Rohres 2 ist in dieses ein Düsenkörper eingesetzt, welcher aus einer Bremsdüse 3 und einer Transportdüse 4 besteht. Diese beiden Düsen sind in Fig. 2 je durch einen Luftanschluss 5 bzw. 6 und eine schräg zur Achse des Aufsteckdorns 2 und damit schräg zum Garn Y orentierte Luftführung 7 bzw. 8 symbolisiert.2 shows the structure of the arbor 2. This is formed by a tube made of a suitable material such as brass, on one end of which a yarn spool G is attached. The yarn Y to be drawn off is taken off from the bobbin G and is guided through the tube forming the mandrel 2 in the take-off direction (arrow A) to the other end of the tube. At this other end of the tube 2, a nozzle body is inserted, which consists of a brake nozzle 3 and a transport nozzle 4. These two nozzles are each symbolized in FIG. 2 by an air connection 5 or 6 and an air duct 7 or 8 oriented obliquely to the axis of the plug-on mandrel 2 and thus obliquely to the yarn Y.

Schon aus dieser symbolischen Darstellung wird klar, dass die beim Anschluss 5 zugeführte Luft den Faden Y entgegengesetzt zur Abzugsrichtung A anströmt und daher bremsend wirkt, und dass die beim Anschluss 6 zugeführte Luft den Faden Y in Abzugsrichtung A anströmt und daher den Abzug unterstützt. Die Bremsdüse 3 hat gegenüber einer mechanischen Fadenbremse den Vorteil, dass sie auch bei Stillstand des Fadens Y auf diesen eine Spannung überträgt. Die Transportdüse 4 dient einerseits für den Transport des Fadens Y an die nachgeschaltete Einrichtung und andererseits zum Einfädeln des Fadenanfangs einer neuen Spule G in den Aufsteckdorn 2 und in den durch die beiden Düsen 3 und 4 gebildeten Düsenkörper.Already from this symbolic representation it becomes clear that the air supplied at connection 5 flows against thread Y opposite to take-off direction A and therefore has a braking effect, and that the air supplied at connection 6 flows against thread Y in take-off direction A and therefore supports the take-off. The brake nozzle 3 has the advantage over a mechanical thread brake that it transfers a tension to the thread Y even when the thread is at a standstill. The transport nozzle 4 serves on the one hand for the transport of the thread Y to the downstream device and on the other hand for threading the beginning of the thread of a new bobbin G into the arbor 2 and into the nozzle body formed by the two nozzles 3 and 4.

Wie der aus den beiden Düsen 3 und 4 gebildete Düsenkörper konkret ausgebildet ist, ob er beispielsweise so wie in Fig. 2 aus zwei Einzeldüsen besteht, oder wieviele Bohrungen 7, 8 über den Innenraum des Düsenkörpers verteilt vorzusehen sind, oder wie die Neigung dieser Bohrungen relativ zur Achse des Aufsteckdorns zu bemessen ist, ist in weiten Grenzen variabel. Wesentlich ist der hohle Aufsteckdorn 2, der Ueberkopfabzug des Fadens Y von der Garnspule G und der Düsenkörper im Bereich des anderen Endes des Aufsteckdorns 2. Es ist auch nicht wichtig, wie der Düsenkörper am Aufsteckdorn 2 befestigt ist. Er kann so wie in Fig. 2 in den Aufsteckdorn eingesetzt, also beispielsweise eingepresst, er könnte aber auch Teil einer an den Aufsteckdorn 2 anschraubbaren oder mit diesem auf andere Weise kuppelbaren Muffe sein.How the nozzle body formed from the two nozzles 3 and 4 is specifically designed, whether it consists of two individual nozzles, for example, as in FIG. 2, or how many holes 7, 8 are to be provided distributed over the interior of the nozzle body, or how the inclination of these holes dimensioned relative to the axis of the arbor is variable within wide limits. What is essential is the hollow plug-on mandrel 2, the overhead take-off of the thread Y from the yarn package G and the nozzle body in the region of the other end of the plug-on mandrel 2. It is also not important how the nozzle body is attached to the plug-on mandrel 2. It can be inserted into the plug-in mandrel as in FIG. 2, that is to say pressed in, for example, but it could also be part of a sleeve which can be screwed onto the plug-on mandrel 2 or can be coupled to it in another way.

Bei dem in Fig. 3 dargestellten Ausführungsbeispiel besteht der genannte Düsenkörper aus drei ineinandergesteckten Büchsen, und zwar aus einer einen zentralen Steg 9 und zwei beidseitig an diesen anschliessende Abstufungen 10 aufweisenden Innenbüchse 11 und aus zwei Aussenbüchsen 12, welche über die Abstufungen 10 der Innenbüchse 11 geschoben sind. Dabei ist einerseits zwischen der Aussenwand der Abstufungen 10 und der Innenwand der Aussenbüchsen 12 ein den Bohrungen 7 und 8 (Fig. 2) entsprechender, ringförmiger Spalt 13 gebildet und andererseits besteht ein Abstand zwischen dem Steg 9 und den diesen zugewandten Stirnflächen der Aussenbüchsen 12, so dass zu beiden Seiten des Stegs 9 eine ringförmige Kammer 14 gebildet ist. In diese beiden Kammern 14 münden die beiden Luftanschlüsse 5 und 6 (Fig. 2), denen über ein gesteuertes Zweiwegventil 15 wahlweise Druckluft zugeführt wird. In der Luftleitung zu dem die Bremsdüse 3 speisenden Anschluss 5 ist eine regelbare Drossel 16 zur Einstellung des Luftdrucks der Bremsdüse 3 zum Zweck der optimalen Anpassung an das jeweilige Garn Y angeordnet. Der Abstand zwischen der Ausswenwand der Abstufungen 10 und der Innenwand der Aussenbüchsen 12, also die "Wandstärke" des Spalts 13 beträgt einige, vorzugsweise etwa 0,2 bis 0,3 Zentelmillimeter.In the exemplary embodiment shown in FIG. 3, the nozzle body mentioned consists of three nested sleeves, namely a central ridge 9 and two inner sleeves 11 which have gradations 10 adjoining them on both sides, and two outer sleeves 12 which extend over the gradations 10 of the inner sleeve 11 are pushed. It is on the one hand, an annular gap 13 corresponding to the bores 7 and 8 (FIG. 2) is formed between the outer wall of the gradations 10 and the inner wall of the outer bushes 12, and on the other hand there is a distance between the web 9 and the end faces of the outer bushes 12 facing them, so that an annular chamber 14 is formed on both sides of the web 9. The two air connections 5 and 6 (FIG. 2), into which compressed air is optionally supplied via a controlled two-way valve 15, open into these two chambers 14. A controllable throttle 16 for adjusting the air pressure of the brake nozzle 3 for the purpose of optimal adaptation to the respective yarn Y is arranged in the air line to the connection 5 feeding the brake nozzle 3. The distance between the outer wall of the gradations 10 and the inner wall of the outer bushes 12, that is to say the “wall thickness” of the gap 13, is a few, preferably about 0.2 to 0.3, centimeters.

Die über die Anschlüsse 5 und 6 zugeführte Luft gelangt in die Kammern 14 und von diesen in die ringförmigen Spalte 13 und strömt im wesentlichen parallel zum Faden Y in den rohrförmigen Aufsteckdorn 2. Da dabei die Luft entlang der Rohrwandung strömt, entspricht die in Fig. 3 dargestellte Düse im wesentlichen einer sogenannten Coanda-Düse, die sich durch einen geringen Geräuschpegel und durch den Aufbau eines grossen Luftvolumens auszeichnet. Selbstverständlich kann auch eine andere Düse, beispielsweise eine Injektordüse, verwendet werden.The air supplied via the connections 5 and 6 enters the chambers 14 and from there into the annular gaps 13 and flows essentially parallel to the thread Y into the tubular plug-in mandrel 2. Since the air flows along the tube wall, the air flow rate shown in FIG. 3 shown nozzle essentially a so-called Coanda nozzle, which is characterized by a low noise level and by the structure of a large volume of air. Of course, another nozzle, for example an injector nozzle, can also be used.

Claims (9)

Aufsteckvorrichtung für Garnspulen, mit Aufsteckdornen und mit in Fadenlaufrichtung nach den Spulen angeordneten Fadenbremsen, dadurch gekennzeichnet, dass die Aufsteckdorne (2) rohrförmig ausgebildet und die Fadenbremsen an den Aufsteckdornen oder im unmittelbaren Anschluss an diese angeordnet sind, und dass das Garn (Y) beim Abzug von der Spule (G) überkopf in die rohrförmigen Aufsteckdorne und in diesen zu den Fadenbremsen geführt ist.Attachment device for spools of thread, with attaching mandrels and with thread brakes arranged after the spools in the thread running direction, characterized in that the attaching mandrels (2) are tubular and the thread brakes are arranged on the attaching mandrels or in the immediate connection to them, and that the yarn (Y) at Deduction from the bobbin (G) is led overhead into the tubular arbors and in these to the thread brakes. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Fadenbremsen pneumatische Bremsdüsen (3) sind.Device according to claim 1, characterized in that the thread brakes are pneumatic brake nozzles (3). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass jeder Bremsdüse (3) eine in Abzugsrichtung (A) des Garns (Y) wirkende Transportdüse (4) für dieses zugeordnet ist.Device according to claim 2, characterized in that each brake nozzle (3) is assigned a transport nozzle (4) acting in the draw-off direction (A) of the yarn (Y). Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Bremsdüse (3) und die Transportdüse (4) einen in den rohrförmigen Aufsteckdorn (2) eingesetzten Düsenkörper aufweisen, welcher mit Luftanschlüssen (5, 6) und mit Luftführungen (7 bzw. 8) versehen ist, aus denen die Luft im wesentlichen entgegengesetzt zur Abzugsrichtung (A) des Garns (Y) beziehungsweise in dieser Richtung in den Innenraum des Aufsteckdorns strömt.Device according to Claim 3, characterized in that the brake nozzle (3) and the transport nozzle (4) have a nozzle body which is inserted into the tubular plug-on mandrel (2) and which has air connections (5, 6) and air ducts (7 and 8) is, from which the air is essentially opposite to the discharge direction (A) of the Yarn (Y) or flows in this direction into the interior of the arbor. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass die Luftanschlüsse (5, 6) je in eine ringförmige Kammer (14) münden, von welcher die Luftführungen abzweigen.Device according to claim 4, characterized in that the air connections (5, 6) each open into an annular chamber (14) from which the air ducts branch off. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Luftführungen durch sternförmig angeordnete Führungskanäle (7, 8) gebildet sind.Apparatus according to claim 5, characterized in that the air ducts are formed by guide channels (7, 8) arranged in a star shape. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Luftführungen je durch einen rohrartigen Zwischenraum (13) zwischen zwei konzentrischen, büchsenförmigen Teilen (10, 12) des Düsenkörpers gebildet sind.Apparatus according to claim 5, characterized in that the air ducts are each formed by a tubular space (13) between two concentric, sleeve-shaped parts (10, 12) of the nozzle body. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die genannten büchsenförmigen Teile (10, 12) eine Ringdüse in der Art einer Coanda-Düse bilden.Apparatus according to claim 7, characterized in that said sleeve-shaped parts (10, 12) form an annular nozzle in the manner of a Coanda nozzle. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass die genannten büchsenförmigen Teile (10, 12) eine Injektordüse bilden.Apparatus according to claim 7, characterized in that said sleeve-shaped parts (10, 12) form an injector nozzle.
EP93116288A 1992-10-21 1993-10-08 Device for attaching yarn bobbins Withdrawn EP0593993A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3259/92 1992-10-21
CH325992A CH686129A5 (en) 1992-10-21 1992-10-21 Slip-on device for bobbins.

Publications (1)

Publication Number Publication Date
EP0593993A1 true EP0593993A1 (en) 1994-04-27

Family

ID=4252115

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116288A Withdrawn EP0593993A1 (en) 1992-10-21 1993-10-08 Device for attaching yarn bobbins

Country Status (4)

Country Link
EP (1) EP0593993A1 (en)
JP (1) JPH06206661A (en)
CN (1) CN1090826A (en)
CH (1) CH686129A5 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007149080A1 (en) * 2006-06-21 2007-12-27 Eastman Chemical Company Devices and methods for conveying fibers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2657005B1 (en) * 2012-04-27 2014-06-25 MULTIVAC Sepp Haggenmüller GmbH & Co KG Blow off group for a sealing unit of a packaging apparatus
CN106276423A (en) * 2015-05-13 2017-01-04 章小进 A kind of textile strand cylinder

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014356A (en) * 1960-01-15 1961-12-26 Burlington Industries Inc Yarn tensioning device
DE2360507A1 (en) * 1973-12-05 1975-06-19 Nino Ag Yarn bobbin mounting frame - has pivoted spindles at ends of carrying arms on either side of central column
DE2535025A1 (en) * 1974-08-15 1976-03-04 Vyzk Ustav Bavlnarsky Hollow bobbin holder - formed by a frusto cone including an angle from 4-30 degrees and projecting above bobbin by up to 300 mm
DE9104480U1 (en) * 1990-06-21 1991-06-06 Zellweger Uster Ag, Uster Rack for attaching thread spools

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3014356A (en) * 1960-01-15 1961-12-26 Burlington Industries Inc Yarn tensioning device
DE2360507A1 (en) * 1973-12-05 1975-06-19 Nino Ag Yarn bobbin mounting frame - has pivoted spindles at ends of carrying arms on either side of central column
DE2535025A1 (en) * 1974-08-15 1976-03-04 Vyzk Ustav Bavlnarsky Hollow bobbin holder - formed by a frusto cone including an angle from 4-30 degrees and projecting above bobbin by up to 300 mm
DE9104480U1 (en) * 1990-06-21 1991-06-06 Zellweger Uster Ag, Uster Rack for attaching thread spools

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007149080A1 (en) * 2006-06-21 2007-12-27 Eastman Chemical Company Devices and methods for conveying fibers

Also Published As

Publication number Publication date
CN1090826A (en) 1994-08-17
JPH06206661A (en) 1994-07-26
CH686129A5 (en) 1996-01-15

Similar Documents

Publication Publication Date Title
DE69308994T2 (en) Method and device for producing a composite yarn
DE19603291B4 (en) Pneumatic spinning device
EP0364874B1 (en) Method for making a composite yarn
WO1996009425A1 (en) Spinning winding frame
DE102018101925A1 (en) Splicing prism for a splicing device
DE102017124659B3 (en) Method and device for producing a yarn
DE60120544T2 (en) Automatic winder with a device for suppressing yarn hairiness
DE3926227C2 (en)
DE1303605B (en)
EP0593993A1 (en) Device for attaching yarn bobbins
DE3741783C2 (en)
DE3236942A1 (en) Winding device for synthetic yarns
CH661753A5 (en) AIR JET NOZZLE FOR GENERATING NODELY INTERFACE IN RUNNING MULTIFILAMENT THREADS.
EP1453996B1 (en) Method and device for producing a combination yarn
DE2716017C2 (en) Thread brake on a thread store
DE1785321A1 (en) Method and device for compensating the thread tension differences occurring when winding textile threads on bobbins
EP0761855A1 (en) Method and apparatus for stuffer-box crimping of synthetic filament yarns
DE3542423A1 (en) Device for the preparation of thread components for subsequent twisting
CH630421A5 (en) METHOD AND DEVICE FOR PRODUCING A WINDING YARN.
DE2527511B2 (en) MACHINE FOR AIR TEXTURING OF SYNTHETIC ENDLESS STEMS
EP0483617A1 (en) Process for producing a yarn package
DE4000494C2 (en)
DE102017102437A1 (en) Thread splicing device for a workstation of a cross-wound textile machine
DE102021129142A1 (en) Yarn tensioner and workplace of a textile machine with a yarn tensioner
DE3104296C2 (en) Method for plying and twisting and device for carrying out the method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE ES FR GB IT

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ZELLWEGER LUWA AG

17P Request for examination filed

Effective date: 19941013

17Q First examination report despatched

Effective date: 19960125

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19960605