EP0031843B1 - Flyer for a roving frame - Google Patents

Flyer for a roving frame Download PDF

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Publication number
EP0031843B1
EP0031843B1 EP80901455A EP80901455A EP0031843B1 EP 0031843 B1 EP0031843 B1 EP 0031843B1 EP 80901455 A EP80901455 A EP 80901455A EP 80901455 A EP80901455 A EP 80901455A EP 0031843 B1 EP0031843 B1 EP 0031843B1
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EP
European Patent Office
Prior art keywords
guide tube
flyer
guide
arm
roving
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
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EP80901455A
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German (de)
French (fr)
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EP0031843B2 (en
EP0031843A1 (en
Inventor
Peter Novak
Bruno Tanner
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP0031843A1 publication Critical patent/EP0031843A1/en
Publication of EP0031843B1 publication Critical patent/EP0031843B1/en
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Publication of EP0031843B2 publication Critical patent/EP0031843B2/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/24—Flyer or like arrangements
    • D01H7/26—Flyer constructions
    • D01H7/30—Flyer constructions with guide channels formed in legs, e.g. slubbing flyers
    • D01H7/32—Flyer constructions with guide channels formed in legs, e.g. slubbing flyers with pressing devices

Definitions

  • the present invention relates to a flyer wing with a pivot, with two wing arms extending away from it and with a guide channel for guiding a roving from a drafting device to a pivotally arranged press finger, which has a yarn guide at its free end, the guide channel partially is formed by a guide tube carried by two swivel bearings and running parallel to one of the arms and connected to the press finger.
  • a flyer wing of this type is known from FIGS. 5 and 6 of CH-A-424 562.
  • This known flyer wing, as well as the also known flyer wing from DE-B-1 685 910, is designed as an open wing, which has the disadvantage that the mutual spacing of the lower ends of the wing arms increases at higher rotational speeds of the spinning wing . As a result, the quality of the roving suffers and its winding on the sleeve located between the wing arms is no longer clean and even.
  • By expanding the wing arms there is also the risk of wing breaks and thus the risk of injury to the personnel.
  • the wing arms are relatively stable, in some cases using lighter materials, so that the centrifugal forces to be controlled are also reduced in this way.
  • the object on which the invention is based is therefore to design a flyer wing of the type mentioned at the outset in such a way that it is suitable for higher speeds with low air resistance and weight.
  • the invention provides that the two arms are firmly assembled at their ends remote from the pivot with a ring, that the guide tube is arranged outside the associated arm and that the pivot bearing removed from the pivot for the guide tube either on the ring or on one located at the end of the associated arm approach is provided.
  • a preferred embodiment is characterized in that a prestressing element acts on the guide tube and exerts a torque on it, by means of which the press finger is biased against a roving spindle arranged concentrically to the axis of rotation of the flyer wing.
  • This embodiment is preferably further developed in that a stop element is attached to the wing arm assigned to the guide tube, by means of which the end position of the guide tube caused by the pretensioning of the prestressing element is defined, and that the position of the stop element is adjustable. This enables adjustment of the end position of the press finger.
  • the guide channel comprises a feed channel located inside this arm part for feeding the roving supplied by the drafting device to the input end of the guide tube
  • the outlet end of this feed channel is preferred extended into the end of the guide tube facing the pivot to advantageously form the swivel bearing removed from the press finger.
  • This arrangement is preferably further developed in that the prestressing element is clamped between the wing arm assigned to the guide tube and the guide tube and preferably surrounds the outlet end of the feed channel. In this way the pretension ment accommodated without difficulty.
  • a tube piece continues from the latter, the free end thereof being directed toward the yarn guide of the press finger. This greatly reduces the formation of fiber fly due to the increased speeds.
  • the pipe section preferably extends to over half the length of the press finger.
  • the guide tube and / or the pipe section can be at least partially made of non-metallic material such. B. ceramic.
  • the flyer wing shown in FIG. 1 has a hollow cylinder 12 or pivot pin provided with a bore 11, which is rotatably mounted in a bearing (not shown). From this pivot pin 12 a a rohrförmi- g en supply duct arm portion 2 shown, vertical 15, as a fixed unit to a flyer arm 14 extends 13-tasting arm portion 14. This forms, together with a in Fig. 1 are not visible, but in Fig. 15 of the flyer wing.
  • a second wing arm 16 which consists of an oblique and a vertical part, also extends from the pivot pin 12.
  • the lower ends of the arm 14, 15 and the arm 16 are assembled with a horizontal ring 17.
  • the arm 16 is firmly connected to the ring 17 by means of a screw 18, but any type of fastening, such as, for. B. casting in a single piece comes into question in the context of this invention.
  • a guide tube 22 is carried by an upper pivot bearing 20 and by a lower pivot bearing 21.
  • the upper pivot bearing 20 is attached to the arm part 14.
  • the lower d. H. the pivot bearing 21 removed from the pivot is installed in the ring 17 in the example shown.
  • the bearings 20, 21 are arranged with respect to the guide tube 22 in such a way that the tube 22 is pivoted about its longitudinal axis 23.
  • the feed channel 13 advantageously has a short tubular extension, which extends into the guide tube 22 to form the upper bearing 20.
  • it can, for example, also be attached to an extension which extends to the location of the bearing 21 and which is located at the lower end of the lower arm part 15.
  • a press finger 25 is fixedly connected to the guide tube 22. At its free end it has a yarn guide 26 for the roving, which is provided with an eyelet 27.
  • a bent tube piece 30 forms a continuation of the guide tube 22. Its free end is directed against the roving guide 26.
  • the bore 11, the feed channel 13, the guide tube 22 and the bent tube piece 30 together form a guide channel for the roving formed during operation of the flyer wing.
  • the pipe piece 30 is attached to the press finger 25 in the example shown.
  • a spindle (not shown) is provided for each spinning station, the axis of rotation of which coincides with the axis of rotation 31 of the corresponding flyer wing.
  • a biasing element formed by a coil spring 32, the guide tube 22 and thus the pressing finger 25 fixed with it in the direction against the axis 31, i. H. against the spindle, not shown, subjected to a constant preload.
  • the guide tube 22 is also connected to a counterweight 33, which is also pivotable with the guide tube 22 about its longitudinal axis 23.
  • the counterweight 33 is subjected to an outward centrifugal force. This generates a torque which is opposite to that generated by the press finger 25.
  • the pressing finger 25 is pressed against the spindle by the counterweight 33 in the same direction of rotation as is the case by the helical spring 32.
  • the torque generated by the counterweight 33 and the preload generated by the spring 32 endeavor to rotate the guide tube 22 clockwise according to the view in FIG. 2.
  • a stop member 34 serves to limit such a movement. In the example shown, it is designed as a screw which is attached in the arm part 15. By turning the screw 34, the one end position of the pivoting of the pressing finger 25 can be set as desired.
  • the fiber sliver is guided by a drafting device, not shown, through the guide channel, which, as already mentioned, comprises the bore 11, the feed channel 13, the guide tube 22 and the bent tube piece 30.
  • the rotation of the flyer wing of the fiber sliver supplied by the drafting device continuously gives a rotation, so that when leaving the tube 30 there is a roving which is spooled as roving by means of the pressing finger 25 onto the spindle (not mentioned) concentric with the axis 31 mentioned above, previously mentioned becomes.
  • the spindle is also subjected to constant rotation about its own axis, which is identical to the axis 31. In addition, it is moved up and down relative to the flyer wing.
  • the press finger 25 is constantly biased against the spindle or a sleeve attached to it, or pressed against it, and puts on these roving windings to form a winding.
  • the expression "roving” is used, although it is a spinning process in which a roving having a certain twist does not yet exist immediately after leaving the drafting system, ie before entering the bore 11 .
  • This flyer wing has the further advantage that the roving rotating about the axis 31 is in a closed channel for practically the entire part of its way during the spinning process and thus there is practically no blowing of the fibers due to the extraordinarily high rotational speeds. This also greatly reduces the formation of fiber fly in the spinning hall. For these reasons, it is advantageous to make the curved tube 30 relatively long; because this will further shorten the length of the roving that is outdoors.
  • this flyer wing is very advantageous if it is used in a machine with automatic bobbin change, in which the roving bobbin is removed upwards and the new, empty sleeve is reinserted from above.
  • the flyer wing in these machines is inclined in such a way that the plane defined by the arms 14, 15 and 16 reaches an inclined position relative to the spindle axis. Thanks to the fact that, due to the spring 32, even when the wing is at rest, the pressing finger 25 bears against the winding of the bobbin, when the bobbin is moved upward, the roving between the eyelet 27 and the winding is separated with great reliability and at the desired location. Also as a result of the permanently pre-tensioned or pressed-on pressing finger 25, a secure grasping of the roving end or sliver beard held by the eyelet is ensured by the newly placed sleeve.
  • the adjustable stop member 34 allows such an adjustment of the movement of the press finger 25 that an operation in which the individual spinning positions without material and thus the corresponding spindles empty, i. H. without sleeve, rotate, is easily possible.
  • the distance of the yarn guide 26 from the outer spindle surface is adjusted in such a way by the variable stop member 34 that these two parts have a small mutual distance, so that mutual contact and wear and tear of the same is avoided.

Abstract

PCT No. PCT/EP80/00039 Sec. 371 Date Mar. 9, 1981 Sec. 102(e) Date Mar. 2, 1981 PCT Filed Jun. 30, 1980 PCT Pub. No. WO81/00119 PCT Pub. Date Jan. 22, 1981.The present invention concerns a flyer for roving frames. According to the invention the flyer arms (14,16) at their free ends are connected rigidly with a ring (17). Furthermore, an enclosed guide duct with a guide tube (22) is provided for the roving, which guide tube (22) is supported to be pivotable about its longitudinal axis and supports a presser finger (25). Thus, a flyer of relatively low weight results, but of high solidity, permitting high rotational speeds. The guide duct for the roving can be of enclosed shape over a maximum of its length.

Description

Die vorliegende Erfindung bezieht sich auf einen Flyerflügel mit einem Drehzapfen, mit zwei sich von diesem weg erstreckenden Flügelarmen und mit einem Führungskanal zur Führung eines Vorgarns von einem Streckwerk zu einem schwenkbar angeordneten Preßfinger, welcher an seinem freien Ende einen Garnführer aufweist, wobei der Führungskanal teilweise von einem von zwei Schwenklagern getragenen, parallel zu einem der Arme verlaufenden, mit dem Preßfinger verbundenen Führungsrohr gebildet ist.The present invention relates to a flyer wing with a pivot, with two wing arms extending away from it and with a guide channel for guiding a roving from a drafting device to a pivotally arranged press finger, which has a yarn guide at its free end, the guide channel partially is formed by a guide tube carried by two swivel bearings and running parallel to one of the arms and connected to the press finger.

Ein Flyerflügel dieser Art ist aus den Fig. 5 und 6 der CH-A-424 562 bekannt. Dieser bekannte Flyerflügel, wie auch der ebenfalls bekannte Flyerflügel aus der DE-B-1 685 910 ist als offener Flügel ausgebildet, welcher den Nachteil mit sich bringt, daß sich der gegenseitige Abstand der unteren Enden der Flügelarme bei höheren Rotations-geschwindigkeiten des Spinnflügels vergrößert. Als Folge davon, leidet die Qualität des Vorgarns und dessen Aufwicklung auf der sich zwischen den Flügelarmen befindlichen Hülse ist nicht mehr sauber und gleichmäßig. Durch das Ausweiten der Flügelarme entsteht außerdem die Gefahr von Flügelbrüchen und damit für das Personal die Gefahr von Verletzungen. Um diesem Nachteil entgegenzuwirken, sind die Flügelarme verhältnismäßig stabil ausgebildet und zwar teilweise unter Verwendung von leichteren Materialien, so daß auch auf diese Weise die zu beherrschenden Zentrifugalkräfte verringert werden.A flyer wing of this type is known from FIGS. 5 and 6 of CH-A-424 562. This known flyer wing, as well as the also known flyer wing from DE-B-1 685 910, is designed as an open wing, which has the disadvantage that the mutual spacing of the lower ends of the wing arms increases at higher rotational speeds of the spinning wing . As a result, the quality of the roving suffers and its winding on the sleeve located between the wing arms is no longer clean and even. By expanding the wing arms, there is also the risk of wing breaks and thus the risk of injury to the personnel. In order to counteract this disadvantage, the wing arms are relatively stable, in some cases using lighter materials, so that the centrifugal forces to be controlled are also reduced in this way.

Dieser Aufbau führt zu größeren Abmessungen der Flügelarme, welche einen großen Luftwiderstand des sich drehenden Flyerflügels mit sich bringt, und damit eine größere Antriebskraft erfordert. Auch die Lagerung der an einem Arm schwenkbar angeordneten Preßfinger bereitet gewisse Schwierigkeiten, da dieser lediglich über Querstifte mit einem sich innerhalb des einen Armes gelagerten, das Gegengewicht tragende Rohrteil verbunden ist, und die Stifte nicht durch die mittig angeordnete Passage dieses Rohrteils gehen dürfen, da diese für die Führung des Vorgarns benötigt wird und freigehalten werden muß.This structure leads to larger dimensions of the wing arms, which brings with it a large air resistance of the rotating flyer wing, and therefore requires a greater driving force. The storage of the press finger pivotally arranged on an arm presents certain difficulties, since it is only connected via cross pins to a pipe part mounted within the arm, which carries the counterweight, and the pins must not pass through the centrally arranged passage of this pipe part, since this is required for guiding the roving and must be kept free.

Die der Erfindung zugrundeliegende Aufgabe besteht daher darin, einen Flyerflügel der eingangs genannten Art so auszubilden, daß er bei geringem Luftwiderstand und Gewicht für höhere Drehzahlen geeignet ist. Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgesehen, daß die beiden Arme an deren vom Drehzapfen entfernten Enden mit einem Ring fest zusammengebaut sind, daß das Führungsrohr außerhalb des zugehörigen Armes angeordnet ist und daß das vom Drehzapfen entfernte Schwenklager für das Führungsrohr entweder am Ring oder an einem sich am Endbereich des zugeordnetes Armes befindlichen Ansatz vorgesehen ist.The object on which the invention is based is therefore to design a flyer wing of the type mentioned at the outset in such a way that it is suitable for higher speeds with low air resistance and weight. To solve this problem, the invention provides that the two arms are firmly assembled at their ends remote from the pivot with a ring, that the guide tube is arranged outside the associated arm and that the pivot bearing removed from the pivot for the guide tube either on the ring or on one located at the end of the associated arm approach is provided.

Ein wesentliches Merkmal der Erfindung ist daher darin zu sehen, daß das Führungsrohr nicht innerhalb (wie bei der Anordnung gemäß Fig. 5 und 6 der CH-A-424562) sondern außerhalb des zugehörigen Armes angeordnet ist. Hierdurch ist es möglich, den Ring fest an den Enden der Arme anzubauen und eine vom zugehörigen Arm unabhängige Lagerung des den Preßfinger tragenden Führungsrohrs zu erhalten. Ein weiterer Vorteil dieser Anordnung ist darin zu sehen, daß das Profil des Armes frei und dadurch optimal gestaltbar ist, insbesondere im Hinblick auf Erzielung eines geringen Luftwiderstandes.An essential feature of the invention is therefore to be seen in the fact that the guide tube is not arranged inside (as in the arrangement according to FIGS. 5 and 6 of CH-A-424562) but outside the associated arm. This makes it possible to attach the ring firmly to the ends of the arms and to obtain a mounting of the guide tube carrying the press finger that is independent of the associated arm. Another advantage of this arrangement can be seen in the fact that the profile of the arm is free and therefore can be optimally designed, in particular with a view to achieving a low air resistance.

Es ist zwar aus der GB-A-380 745 bekannt, die unteren Enden der Flügelarme eines Flyerflügels mittels eines horizontalen Ringes miteinander zu verbinden und dadurch zu versteifen. Bei dieser bekannten Anordnung ist jedoch kein Preßfinger vorhanden, und im übrigen wird der Ring etwas oberhalb der vom Drehzapfen entfernten Enden der Flügelarme angebracht.It is known from GB-A-380 745 to connect the lower ends of the wing arms of a flyer wing to one another by means of a horizontal ring and thereby to stiffen them. In this known arrangement, however, there is no press finger, and the rest of the ring is attached somewhat above the ends of the wing arms remote from the pivot.

Eine bevorzugte Ausführungsform zeichnet sich dadurch aus, daß ein Vorspannelement auf das Führungsrohr einwirkt und auf dieses ein Drehmoment ausübt, durch welches der Preßfinger gegen eine konzentrisch zur Rotationsachse des Flyerflügels angeordnete Vorgarnspindel dauern vorgespannt ist.A preferred embodiment is characterized in that a prestressing element acts on the guide tube and exerts a torque on it, by means of which the press finger is biased against a roving spindle arranged concentrically to the axis of rotation of the flyer wing.

Zwar ist die Anwendung einer Feder zum dauernden Vorspannen des Preßfingers gegen eine konzentrisch zur Rotationsachse des Flyerflügels angeordnete Vorgarnspindel aus der DE-A-28 39 065 bekannt. Hier wirkt jedoch die Feder direkt auf den Preßfinger und zwar von außen, so daß die Feder eine Erhöhung des Luftwiderstandes des Flyerflügels bewirkt und im übrigen dazu neigt Flugfasern zu fangen.It is known from DE-A-28 39 065 that a spring for permanently biasing the pressing finger against a roving spindle arranged concentrically to the axis of rotation of the flyer wing is known. Here, however, the spring acts directly on the press finger, namely from the outside, so that the spring causes an increase in the air resistance of the flyer wing and, moreover, tends to catch flying fibers.

Diese Ausführungsform wird bevorzugt dadurch weitergebildet, daß an dem Führungsrohr zugeordneten Flügelarm ein Anschlagorgan angebracht ist, durch welches die durch die Vorspannung des Vorspannelementes bedingte Endlage des Führungsrohrs definiert ist, und daß die Position des Anschlagorgans einstellbar ist. Hierdurch wird eine Justierung der Endstellung des Preßfingers ermöglicht.This embodiment is preferably further developed in that a stop element is attached to the wing arm assigned to the guide tube, by means of which the end position of the guide tube caused by the pretensioning of the prestressing element is defined, and that the position of the stop element is adjustable. This enables adjustment of the end position of the press finger.

Bei einer Anordnung des Flyerflügels, bei dem der dem Führungsrohr zugeordnete Arm ein zum Drehzapfen hin führendes Armteil aufweist und der Führungskanal einen sich im Inneren dieses Armteils befindlichen Zuführungskanal zum Zuführen des vom Streckwerk gelieferten Vorgarns zum Eingangsende des Führungsrohres umfaßt, wird das Austrittsende dieses Zuführungskanals bevorzugt in das dem Drehzapfen zugewandten Ende des Führungsrohrs hinein verlängert, um auf vorteilhafte Weise das dem Preßfinger entfernten Schwenklager zu bilden.In the case of an arrangement of the flyer wing in which the arm assigned to the guide tube has an arm part leading to the pivot pin and the guide channel comprises a feed channel located inside this arm part for feeding the roving supplied by the drafting device to the input end of the guide tube, the outlet end of this feed channel is preferred extended into the end of the guide tube facing the pivot to advantageously form the swivel bearing removed from the press finger.

Diese Anordnung wird bevorzugt dadurch weitergebildet, daß das Vorspannelement zwischen dem dem Führungsrohr zugeordneten Flügelarm und dem Führungsrohr eingespannt ist und bevorzugt das Austrittsende des Zuführungskanals umgibt. Auf diese Weise wird das Vorspannelement ohne Schwierigkeit untergebracht.This arrangement is preferably further developed in that the prestressing element is clamped between the wing arm assigned to the guide tube and the guide tube and preferably surrounds the outlet end of the feed channel. In this way the pretension ment accommodated without difficulty.

Bei einer Ausführungsform setzt sich am vom Drehzapfen entfernten Ende des Führungsrohres von diesem ein Rohrstück fort, wobei dessen freies Ende gegen den Garnführer des Preßfingers hin gerichtet ist. Hierdurch wird die Bildung von Faserflug aufgrund der erhöhten Drehzahlen .stark reduziert. Das Rohrstück erstreckt sich bevorzugt bis über die Hälfte der Länge des Preßfingers. Schließlich kann bzw. können das Führungsrohr und/oder das Rohrstück mindestens teilweise aus nicht metallischem Material z. B. Keramik bestehen.In one embodiment, at the end of the guide tube remote from the pivot, a tube piece continues from the latter, the free end thereof being directed toward the yarn guide of the press finger. This greatly reduces the formation of fiber fly due to the increased speeds. The pipe section preferably extends to over half the length of the press finger. Finally, the guide tube and / or the pipe section can be at least partially made of non-metallic material such. B. ceramic.

Im folgenden werden die Erfindung und weitere Vorteile derselben anhand eines Ausführungsbeispiels und der Zeichnung näher erläutert. In der letzteren ist:

  • Figur 1 ein Querschnitt eines von der Seite gesehenen Flyerflügels,
  • Figur 2 ein horizontaler Schnitt am Orte der Linie 11-11 der Figur 1 in vergrösserter Darstellung. Gleiche Bezugszeichen in den beiden Figuren bezeichnen gleiche Teile.
The invention and further advantages thereof are explained in more detail below with the aid of an exemplary embodiment and the drawing. In the latter is:
  • FIG. 1 shows a cross section of a flyer wing seen from the side,
  • Figure 2 is a horizontal section at the location of line 11-11 of Figure 1 in an enlarged view. The same reference numerals in the two figures denote the same parts.

Der in Fig. 1 gezeigte Flyerflügel weist einen mit einer Bohrung 11 versehenen Hohlzylinder 12 bzw. Drehzapfen auf, welcher in einem nicht gezeigten Lager drehbar gelagert ist. Von diesem Drehzapfen 12 erstreckt sich ein einen rohrförmi- gen Zuführungskanal 13 aufweisender Armteil 14. Dieser bildet, zusammen mit einem in Fig. 1 nicht sichtbaren, aber in Fig. 2 gezeigten, senkrechten Armteil 15, als feste Einheit den einen Flügelarm 14, 15 des Flyerflügels. Vom Drehzapfen 12 erstreckt sich ausserdem ein aus einem schrägen und einem senkrechten Teil bestehender, zweiter Flügelarm 16.The flyer wing shown in FIG. 1 has a hollow cylinder 12 or pivot pin provided with a bore 11, which is rotatably mounted in a bearing (not shown). From this pivot pin 12 a a rohrförmi- g en supply duct arm portion 2 shown, vertical 15, as a fixed unit to a flyer arm 14 extends 13-tasting arm portion 14. This forms, together with a in Fig. 1 are not visible, but in Fig. 15 of the flyer wing. A second wing arm 16, which consists of an oblique and a vertical part, also extends from the pivot pin 12.

Die untern Enden des Armes 14, 15 und des Armes 16 sind mit einem horizontalen Ring 17 zusammengebaut. Im gezeigten Beispiel ist der Arm 16 mittels einer Schraube 18 mit dem Ring 17 fest verbunden, aber jede Art von Befestigung, wie auch z. B. das Giessen in einem einzigen Stück, kommt im Rahmen dieser Erfindung in Frage.The lower ends of the arm 14, 15 and the arm 16 are assembled with a horizontal ring 17. In the example shown, the arm 16 is firmly connected to the ring 17 by means of a screw 18, but any type of fastening, such as, for. B. casting in a single piece comes into question in the context of this invention.

Ein Führungsrohr 22 ist von einem oberen Schwenklager 20 und von einem untern Schwenklager 21 getragen. Das obere Schwenklager 20 ist am Armteil 14 festgemacht. Das untere d. h. das vom Drehzapfen entfernte Schwenklager 21 ist im gezeigten Beispiel in den Ring 17 eingebaut. Die Lager 20, 21 sind in bezug auf das Führungsrohr 22 in der Weise angeordnet, dass die Schwenkungen des Rohres 22 um seine Längsachse 23 erfolgen. Vorteilhafterweise besitzt der Zuführungskanal 13 eine kurze rohrförmige Verlängerung, welche zum Bilden des obern Lagers 20 sich in das Führungsrohr 22 hinein erstreckt. Statt, wie in Fig. 1 gezeigt, das untere Lager 21 in den Ring 17 einzubauen, kann es beispielsweise auch an einem sich zum Ort des Lagers 21 hin erstreckenden Ansatz angebracht sein, welches sich am unteren Ende des untern Armteils 15 befindet.A guide tube 22 is carried by an upper pivot bearing 20 and by a lower pivot bearing 21. The upper pivot bearing 20 is attached to the arm part 14. The lower d. H. the pivot bearing 21 removed from the pivot is installed in the ring 17 in the example shown. The bearings 20, 21 are arranged with respect to the guide tube 22 in such a way that the tube 22 is pivoted about its longitudinal axis 23. The feed channel 13 advantageously has a short tubular extension, which extends into the guide tube 22 to form the upper bearing 20. Instead of installing the lower bearing 21 in the ring 17, as shown in FIG. 1, it can, for example, also be attached to an extension which extends to the location of the bearing 21 and which is located at the lower end of the lower arm part 15.

Ein Preßfinger 25 ist mit dem Führungsrohr 22 fest verbunden. Er weist an seinem freien Ende einen Garnführer 26 für das Vorgarn auf, welcher mit einer Oese 27 versehen ist. Ein gebogenes Rohr stück 30 bildet eine Fortsetzung des Führungsrohrs 22. Sein freies Ende ist gegen den Vorgarnführer 26 hin gerichtet. Die Bohrung 11, der Zuführungskanal 13, das Führungsrohr 22 und das gebogene Rohr stück 30 bilden zusammen einen Führungskanal für das sich im Betrieb des Flyerflügels bildende Vorgarn. Das Rohr stück 30 ist im gezeigten Beispiel am Preßfinger 25 befestigt.A press finger 25 is fixedly connected to the guide tube 22. At its free end it has a yarn guide 26 for the roving, which is provided with an eyelet 27. A bent tube piece 30 forms a continuation of the guide tube 22. Its free end is directed against the roving guide 26. The bore 11, the feed channel 13, the guide tube 22 and the bent tube piece 30 together form a guide channel for the roving formed during operation of the flyer wing. The pipe piece 30 is attached to the press finger 25 in the example shown.

Für den Spinnvorgang ist für jede Spinnstelle eine nicht gezeichnete Spindel vorgesehen, deren Rotationsachse mit der Rotationsachse 31 des entsprechenden Flyerflügels zusammenfällt. Mittels eines durch eine Schraubenfeder 32 gebildeten Vorspannelementes ist das Führungsrohr 22 und damit der mit ihm feste Preßfinger 25 in der Richtung gegen die Achse 31, d. h. gegen die nicht gezeichnete Spindel hin, einer dauernden Vorspannung unterworfen.For the spinning process, a spindle (not shown) is provided for each spinning station, the axis of rotation of which coincides with the axis of rotation 31 of the corresponding flyer wing. By means of a biasing element formed by a coil spring 32, the guide tube 22 and thus the pressing finger 25 fixed with it in the direction against the axis 31, i. H. against the spindle, not shown, subjected to a constant preload.

Das Führungsrohr 22 ist ausserdem mit einem Gegengewicht 33 verbunden, welches ebenfalls mit dem Führungsrohr 22 um dessen Längsachse 23 schwenkbar ist. Während der Rotation des Flyerflügels ist das Gegengewicht 33 einer nach aussen gerichteten Fliehkraft unterworfen. Dadurch wird ein Drehmoment erzeugt, welches dem vom Preßfinger 25 erzeugten entgegengerichtet ist. Dadurch wird der Preßfinger 25 durch das Gegengewicht 33 im gleichen Drehsinn an die Spindel angedrückt, wie dies durch die Schraubenfeder 32 der Fall ist. Das vom Gegengewicht 33 erzeugte Drehmoment und die durch die Feder 32 erzeugte Vörspannung sind bestrebt, das Führungsrohr 22 gemäss der Ansicht der Fig. 2 im Uhrzeigersinn zu drehen. Ein Anschlagorgan 34 dient zur Begrenzung einer solchen Bewegung. Es ist im gezeigten Beispiel als Schraube ausgebildet, welche im Armteil 15 angebracht ist. Durch Verdrehen der Schraube 34 kann somit die eine Endlage der Verschwenkung des Preßfingers 25 beliebig eingestellt werden.The guide tube 22 is also connected to a counterweight 33, which is also pivotable with the guide tube 22 about its longitudinal axis 23. During the rotation of the flyer wing, the counterweight 33 is subjected to an outward centrifugal force. This generates a torque which is opposite to that generated by the press finger 25. As a result, the pressing finger 25 is pressed against the spindle by the counterweight 33 in the same direction of rotation as is the case by the helical spring 32. The torque generated by the counterweight 33 and the preload generated by the spring 32 endeavor to rotate the guide tube 22 clockwise according to the view in FIG. 2. A stop member 34 serves to limit such a movement. In the example shown, it is designed as a screw which is attached in the arm part 15. By turning the screw 34, the one end position of the pivoting of the pressing finger 25 can be set as desired.

Im Betrieb wird die Faserlunte von einem nicht gezeichneten Streckwerk durch den Führungskanal geführt, welcher, wie bereits erwähnt, die Bohrung 11, den Zuführungskanal 13, das Führungsrohr 22 und das gebogene Rohr stück 30 umfasst. Gleichzeitig wird durch die Rotation des Flyerflügels der vom Streckwerk gelieferten Faserlunte dauernd eine Drehung erteilt, sodass beim Austreten aus dem Rohr 30 ein Vorgarn vorliegt, welches mittels des Pressfingers 25 auf die zur Achse 31 konzentrische, im Vorherigen erwähnte, nicht gezeichnete Spindel als Vorgarn aufgespult wird. Während des Spinnvorgangs ist auch die Spindel einer dauernden Rotation um ihre eigene Achse, welche mit der Achse 31 identisch ist, unterworfen. Zusätzlich wird sie relativ zum Flyerflügel auf- und abbewegt. Dabei ist der Preßfinger 25 dauernd gegen die Spindel, bzw. eine auf dieser angebrachten Hülse hin vorgespannt, bzw. an diese angedrückt und legt auf diese Vorgarnwindungen zu einer Wicklung auf. Es sei an dieser Stelle darauf hingewiesen, dass in den Ansprüchen der einfacheren Ausdrucksweise wegen der Ausdruck « Vorgarn gebraucht wird, obwohl es sich um einen Spinnvorgang handelt, bei welchem unmittelbar nach dem Verlassen des Streckwerkes, d. h. vor dem Eintreten in die Bohrung 11, ein eine bestimmte Drehung aufweisendes Vorgarn noch nicht vorliegt.In operation, the fiber sliver is guided by a drafting device, not shown, through the guide channel, which, as already mentioned, comprises the bore 11, the feed channel 13, the guide tube 22 and the bent tube piece 30. At the same time, the rotation of the flyer wing of the fiber sliver supplied by the drafting device continuously gives a rotation, so that when leaving the tube 30 there is a roving which is spooled as roving by means of the pressing finger 25 onto the spindle (not mentioned) concentric with the axis 31 mentioned above, previously mentioned becomes. During the spinning process, the spindle is also subjected to constant rotation about its own axis, which is identical to the axis 31. In addition, it is moved up and down relative to the flyer wing. The press finger 25 is constantly biased against the spindle or a sleeve attached to it, or pressed against it, and puts on these roving windings to form a winding. At this point it should be pointed out that in the claims of the simpler expression, the expression "roving" is used, although it is a spinning process in which a roving having a certain twist does not yet exist immediately after leaving the drafting system, ie before entering the bore 11 .

Nach dem Austreten des Vorgarns aus dem gebogenen Rohrstück 30 wird es unter Bildung einer oder mehrerer Umwindungen um den Preßfingen 25 gewunden und gelangt anschliessend durch die Oese 27 auf die auf der Spindel angebrachte Hülse bzw. auf die auf dieser Hülse bereits vorhandenen Windungen. Dieser Flyerflügel weist den weiteren Vorteil auf, dass sich das um die Achse 31 rotierende Vorgarn auf dem praktisch gesamten Teil seines Weges während des Spinnprozesses in einem geschlossenen Kanal befindet und somit ein Verblasen der Fasern infolge der ausserordentlich hohen Rotationsgeschwindigkeiten praktisch nicht vorhanden ist. Damit wird auch die Bildung von Faserflug im Spinnsaal stark reduziert. Aus diesen Gründen ist es vorteilhaft, das gebogene Rohr 30 relativ lang zu machen ; denn dadurch wird die Länge des sich im Freien befindlichen Vorgarns nochmals etwas verkürzt. Ausserdem kommt noch dazu, dass bei kürzerem Abstand des freien Endes des Rohres 30 von der Oese 27 die Umwindungen am Preßfinger enger werden, sodass mit weniger Umwindungen am Preßfinger 25 die gleiche, für die Dichte des Spule entscheidende Bremskraft auf das Vorgarn erhalten wird als mit mehr Windungen, welche weiter in die Länge gezogen sind. Es ist somit vorteilhaft, wenn sich das gebogene Rohr 30 bis über die Hälfte der Länge des Preßfingers 25 erstreckt. Natürlich spielt in diesem Zusammenhang die Art des Garnmaterials eine Rolle.After the roving emerges from the bent pipe section 30, it is wound around the pressing fingers 25 to form one or more turns and then passes through the eyelet 27 onto the sleeve attached to the spindle or onto the turns already present on this sleeve. This flyer wing has the further advantage that the roving rotating about the axis 31 is in a closed channel for practically the entire part of its way during the spinning process and thus there is practically no blowing of the fibers due to the extraordinarily high rotational speeds. This also greatly reduces the formation of fiber fly in the spinning hall. For these reasons, it is advantageous to make the curved tube 30 relatively long; because this will further shorten the length of the roving that is outdoors. In addition, there is the fact that with a shorter distance between the free end of the tube 30 and the eyelet 27, the windings on the press finger become narrower, so that with fewer windings on the press finger 25, the same braking force on the roving which is decisive for the density of the bobbin is obtained than with more turns, which are stretched further. It is therefore advantageous if the bent tube 30 extends to over half the length of the press finger 25. Of course, the type of yarn material plays a role in this context.

Im weitern ist dieser Flyerflügel sehr vorteilhaft, wenn er in einer Maschine mit automatischem Spulenwechsel, bei der die Vorgarnspule nach oben weggenommen und die neue, leere Hülse wieder von oben eingesetzt wird, zur Verwendung gelangt. Um den Weg nach oben freizugeben, wird bei diesen Maschinen der Flyerflügel in der Weise schräg gestellt, dass die durch die Arme 14, 15 und 16 definierte Ebene in eine Schräglage relativ zur Spindelachse gelangt. Dank der Tatsache, dass wegen der Feder 32 auch bei ruhendem Flügel der Preßfinger 25 an der Wicklung der Spule anliegt, erfolgt beim Wegbewegen der Spule nach oben eine Trennung des Vorgarns zwischen der Oese 27 und der Wicklung mit grosser Zuverlässigkeit und an der gewünschten Stelle. Ebenfalls als Folge des dauernd vorgespannten bzw. angepressten Preßfingers 25 ist ein sicheres Erfassen des von der Oese gehaltenen Vorgarnendes bzw. Luntenbartes durch die neu aufgesetzte Hülse gewährleistet.Furthermore, this flyer wing is very advantageous if it is used in a machine with automatic bobbin change, in which the roving bobbin is removed upwards and the new, empty sleeve is reinserted from above. In order to clear the way upwards, the flyer wing in these machines is inclined in such a way that the plane defined by the arms 14, 15 and 16 reaches an inclined position relative to the spindle axis. Thanks to the fact that, due to the spring 32, even when the wing is at rest, the pressing finger 25 bears against the winding of the bobbin, when the bobbin is moved upward, the roving between the eyelet 27 and the winding is separated with great reliability and at the desired location. Also as a result of the permanently pre-tensioned or pressed-on pressing finger 25, a secure grasping of the roving end or sliver beard held by the eyelet is ensured by the newly placed sleeve.

Schliesslich ist noch ein weiteres, vorteilhaftes Merkmal zu erwähnen. Es kommt nicht selten vor, dass im Betrieb einer Flyermaschine gewisse Spinnstellen ausgeschaltet, d. h. ohne Fasermaterial betrieben werden müssen. Dabei können bei einer solchen Maschine die einzelnen Spindeln nicht wahlweise einzeln stillgelegt werden, d. h. man muss sie leer rotieren lassen. Das einstellbare Anschlagorgan 34 gestattet eine solche Justierung der Bewegung des Preßfingers 25, dass ein Betrieb, bei welchem die einzelnen Spinnstellen ohne Material und somit die entsprechenden Spindeln leer, d. h. ohne Hülse, rotieren, ohne weiteres möglich ist. Der Abstand des Garnführers 26 Von der äussern Spindeloberfläche wird dabei in der Weise durch das variable Anschlagorgan 34 eingestellt, dass diese beiden Teile einen kleinen, gegenseitigen Abstand aufweisen, sodass eine gegenseitige Berührung und Abnützung derselben vermieden ist.Finally, another advantageous feature should be mentioned. It is not uncommon for certain spinning positions to be switched off during operation of a flyer machine, i. H. must be operated without fiber material. In such a machine, the individual spindles cannot optionally be shut down individually, i. H. you have to rotate them empty. The adjustable stop member 34 allows such an adjustment of the movement of the press finger 25 that an operation in which the individual spinning positions without material and thus the corresponding spindles empty, i. H. without sleeve, rotate, is easily possible. The distance of the yarn guide 26 from the outer spindle surface is adjusted in such a way by the variable stop member 34 that these two parts have a small mutual distance, so that mutual contact and wear and tear of the same is avoided.

Claims (8)

1. Flyer having a rotatable member (12) with flyer arms (15, 16) extending away therefrom and a guide passage for guiding a roving from a drafting mechanism to a pivotally mounted press finger (25) which has a yarn guide (27) at its free end, the guide passage being provided partly by a guide tube (22) supported by two pivot bearings (20, 21), connected to the press finger (25) and extending parallel to one of the arms (15), characterised in that the two arms (15, 16) at their ends remote from the rotatalbe member (12) are rigidly connected by a ring (17), in that the guide tube (22) is disposed outside the associated arm and in that the guide tube pivot bearing (21) remote from the rotatable member (12) is provided either on the ring or on an extension located at the end of the associated arm (15).
2. Flyer according to claim 1, characterised in that a biasing element (32) acts on the guide tube (22) and exerts a rotational moment on it, through which the press finger (25) is biased continually against a roving spindle arranged concentric to the rotational axis (31) of the flyer.
3. Flyer according to claim 2, characterised in that an abutment member is mounted on the flyer arm (15) associated with the guide tube (22), the end of the guide tube (22) determined by the bias of the biasing element (32) being defined by the abutment member, and in that the position of abutment member is adjustable.
4. Flyer according to one of the preceding claims, in which the arm (15) associated with the guide tube (22) has an arm portion (14) leading to the rotatable member (12) and the guide passage (11, 13, 22, 30) comprises a feed passage (13) in the interior of this arm portion (14) for feeding the roving delivered by the drafting mechanism to the entrance end of the guide tube (22) characterised in that the exit end of this feed passage (13) is extended into the end of the guide tube (22) facing the rotatable member (12).
5. Flyer according to claim 4, characterised in that the biasing element (32) is inserted between the flyer arm (15) associated with the guide tube (22) and the guide tube (22) and preferably encircles the exit end of the feed passage (13).
6. Flyer according to one of the preceding claims, characterised in that a tube portion (30) extends from the end of the guide tube (22) remote from the rotatable member (12), the free end of this tube portion being directed towards the yarn guide (20) of the press finger (25).
7. Flyer according to claim 6, characterised in that the tube portion (30) extends over half the length of the press finger (25).
8. Flyer according to one of the preceding claims, characterised in that the guide tube (22) and/or the tube portion (30) are made at least partly of non-metallic material e. g. ceramic.
EP80901455A 1979-07-09 1981-01-26 Flyer for a roving frame Expired EP0031843B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH637779A CH637998A5 (en) 1979-07-09 1979-07-09 FLYER WING.
CH6377/79 1979-07-09

Publications (3)

Publication Number Publication Date
EP0031843A1 EP0031843A1 (en) 1981-07-15
EP0031843B1 true EP0031843B1 (en) 1984-09-26
EP0031843B2 EP0031843B2 (en) 1988-08-10

Family

ID=4308617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80901455A Expired EP0031843B2 (en) 1979-07-09 1981-01-26 Flyer for a roving frame

Country Status (13)

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US (1) US4377931A (en)
EP (1) EP0031843B2 (en)
JP (1) JPS6237130B2 (en)
AT (1) ATE9600T1 (en)
AU (1) AU531905B2 (en)
BE (1) BE884220A (en)
BR (1) BR8008747A (en)
CH (1) CH637998A5 (en)
DE (1) DE3069284D1 (en)
ES (1) ES8105407A1 (en)
IN (1) IN154349B (en)
IT (1) IT1131901B (en)
WO (1) WO1981000119A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3004165A1 (en) * 1980-02-05 1981-08-13 Zinser Textilmaschinen Gmbh, 7333 Ebersbach RADIATOR
DE19727799C1 (en) * 1997-06-30 1998-08-06 Ernst Holz Textilmaschinen Zub Flyer
CN1323200C (en) * 2003-06-23 2007-06-27 天津宏大纺织机械有限公司 Totally-enclosed flyer
CN101984162B (en) * 2010-11-08 2012-12-12 武汉纺织大学 Short-flow high-efficiency spinning machine used for producing multicomponent yarn
CN107227522A (en) * 2017-07-24 2017-10-03 宁夏如意科技时尚产业有限公司 A kind of roving flyer
JP2020084351A (en) * 2018-11-21 2020-06-04 株式会社豊田自動織機 Flyer of slubbing machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US355794A (en) * 1887-01-11 Speeder-flier
US1103654A (en) * 1914-04-07 1914-07-14 Whitin Machine Works Presser for fliers.
FR714005A (en) * 1930-05-30 1931-11-06 Curved compression vane for pin benches
GB481530A (en) * 1936-09-14 1938-03-14 William Ewart & Son Ltd Improvements in or relating to flyers for spinning frames
GB899791A (en) * 1959-12-21 1962-06-27 Tmm Research Ltd Improvements in flyers for textile speed frames
US3157020A (en) * 1961-01-18 1964-11-17 Schwager Hans Georg Flyer
US3216185A (en) * 1963-12-02 1965-11-09 Eugen Maier Metallverareitung Flyer frame construction
DE1535049A1 (en) * 1964-09-01 1969-11-20 Zinser Textilmaschinen Gmbh Wings for roving machines
CH533179A (en) * 1971-01-13 1973-01-31 Schwager Hansjorg Flyer wings
US4060969A (en) * 1976-06-01 1977-12-06 Manuel Costales Flyer for twisting mechanisms

Also Published As

Publication number Publication date
AU531905B2 (en) 1983-09-08
EP0031843B2 (en) 1988-08-10
BE884220A (en) 1981-01-08
IN154349B (en) 1984-10-20
JPS6237130B2 (en) 1987-08-11
CH637998A5 (en) 1983-08-31
AU6022280A (en) 1981-01-15
ES493611A0 (en) 1981-06-01
EP0031843A1 (en) 1981-07-15
ATE9600T1 (en) 1984-10-15
JPS56500857A (en) 1981-06-25
DE3069284D1 (en) 1984-10-31
IT1131901B (en) 1986-06-25
ES8105407A1 (en) 1981-06-01
WO1981000119A1 (en) 1981-01-22
BR8008747A (en) 1981-04-28
US4377931A (en) 1983-03-29
IT8023223A0 (en) 1980-07-03

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