EP0644281A2 - Procedure and device for producing a twisted yarn - Google Patents

Procedure and device for producing a twisted yarn Download PDF

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Publication number
EP0644281A2
EP0644281A2 EP94112095A EP94112095A EP0644281A2 EP 0644281 A2 EP0644281 A2 EP 0644281A2 EP 94112095 A EP94112095 A EP 94112095A EP 94112095 A EP94112095 A EP 94112095A EP 0644281 A2 EP0644281 A2 EP 0644281A2
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EP
European Patent Office
Prior art keywords
thread
fiber material
spinning
balloon
spinning units
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.)
Granted
Application number
EP94112095A
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German (de)
French (fr)
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EP0644281A3 (en
EP0644281B1 (en
Inventor
Ulrich Dr. Ballhausen
Gustav Franzen
Rainer Dr. Lorenz
Ulrich Lossa
Guido Spix
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Palitex Project Co GmbH
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Palitex Project Co GmbH
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Publication of EP0644281A3 publication Critical patent/EP0644281A3/en
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/04—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques imparting twist by contact of fibres with a running surface
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • 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
    • D01H7/90—Arrangements with two or more spinning or twisting devices of different types in combination

Definitions

  • the most common way of producing a twine is that in a first stage of work using suitable spinning units, e.g. Rotor spinning or friction spinning devices are made from dissolved fiber material or ring spinning devices, which are spun in a subsequent work step by means of twisting devices, e.g. Double wire twisting devices to be processed into a twine.
  • suitable spinning units e.g. Rotor spinning or friction spinning devices are made from dissolved fiber material or ring spinning devices, which are spun in a subsequent work step by means of twisting devices, e.g. Double wire twisting devices to be processed into a twine.
  • twisting devices e.g. Double wire twisting devices to be processed into a twine.
  • independent spinning machines acting on the one hand and threading machines on the other hand are required, which is complex both in terms of machine and in terms of the workflow.
  • the invention is concerned with the idea of integrating spinning units into a twisting device constructed essentially according to the double-wire principle in such a way that in a continuous working process the filaments produced by means of the spinning units are combined immediately after their manufacture and - in accordance with the double-wire principle - are processed into a twine.
  • thread balloon An essential element in the double-wire twisting process is the thread balloon, in which the thread forms an envelope around the stationary bobbin of the thread spindle, which was previously regarded as impenetrable in order to allow material flows, e.g. also fiber material to feed into the space enclosed by the thread balloon.
  • a first solution to this problem of feeding material flows into the space essentially enclosed by the thread balloon is described in DE-37 21 364 C2.
  • a flow medium is introduced without interference into the space delimited by the thread balloon, in that the spindle rotor has a plurality of guide blades arranged in the form of a spoke and the thread guide channel runs through one of these guide blades.
  • air-conditioned air is also indicated, but also two-phase media, such as drops suspended in air, which are said to have special effects on the yarn. It is also stated that fiber material can be fed in with this method.
  • the invention has for its object to provide a method for producing a thread from at least two components to which the twisted spindle is only fed dissolved fiber material and the finished twisted thread is withdrawn from the spindle.
  • DE-OS 1 785 366 dating from 1972, deals with a spinning process, which at this time is still referred to as "element spinning", in which fiber material is arranged into a fiber band, which is brought into the form of a rotating balloon, in which is given to the sliver at least two turns per revolution of the balloon and the resulting yarn is drawn off.
  • the device for carrying out this known spinning process has a spinning chamber arranged on a spindle, into which the fiber material is introduced through a fiber input tube running coaxially to the spindle axis and a channel running radially through the spindle rotor. Inside the spinning chamber there is a collecting ring for the fiber material, which is formed into a fuse there.
  • the drawn fiber sliver is guided through a channel lying in the spindle axis, in which it receives a first rotation and from which it emerges in the radial direction and enters a rotating balloon surrounding the spinning chamber, in which it receives the second rotation.
  • the thread drawn off from the spinning rotor is returned to the common axis of the spinning rotor and the double-wire rotor by a draw-off channel arranged in the double-wire rotor and running in an arc around the outside of the spinning rotor, and is discharged upwards through the drive device of the double-wire rotor.
  • a second turn is applied to the thread.
  • the fiber material is fed to the spinning rotor through a feed channel in the double-wire rotor, the receiving opening of which is symmetrical and the discharge opening is eccentric to the axis of the double-wire rotor.
  • the basic idea of the invention is to use the fiber material introduced into the twisting spindle through the rotating thread balloon directly for the production of a thread from at least two spun threads and this fiber material so that it does not disturb the balloon on the one hand and on the other hand there is enough space to accommodate several spinning units within the space defined by the thread balloon, to which the fiber material is fed in separate streams, while the spinning threads drawn off by the spinning devices together through the hollow spindle axis and Thread balloon are guided.
  • the space previously occupied by the necessary supply spools is available to the spinning units and their drive mechanism.
  • the spinning and twisting technology process in the open-end spinning-twisting system is as follows: Dissolved fiber material is preferably fed through the thread balloon to the interior of the spindle just above or in the preferably upper region of a thread guide element that rotates with the thread balloon - balloon limiter or thread guide tube. At the point of crossing the fiber stream, the thread is preferably guided through a thread guide element attached to the co-rotating thread guide element.
  • Each fiber stream supplies a spinning unit, for example a spinning rotor.
  • the spinning rotors are driven by an electric motor in the opposite direction to the direction of rotation of the double-twisted spindle.
  • a spinning thread is pulled up from each spinning rotor and fed to the spindle center, that is to say the hollow axis of the double-wire twisting spindle.
  • the trade association is created, which is directly followed by the first twisting zone of the double-wire twisting spindle connects.
  • the thread is then conveyed radially outwards through the usual thread guide channel and deflected upwards along the thread guide element that also rotates with the spindle rotor, wherein it is guided in the area of the fiber feed or fiber feed through the thread guide element that also rotates before it lies in the extension of the spindle hollow axis Centering point, for example a balloon thread guide eyelet, passes through.
  • this balloon thread guide eyelet is a positively driven take-off unit which is fixed to the frame and which is followed by a conventional thread winding unit. Between the take-off unit and the take-up unit, a conventional thread length compensation unit is arranged, which has a certain thread storage function.
  • the feeding or feeding of the dissolved fiber material to or into the spinning units is preferably carried out by means of negative pressure, which is built up in the area of the spinning units by a suction pipe running in the area of the spindle axis, which is connected at its outer end to a suction source, while the Connect the inner end of this suction tube to air channels which are guided so that they are able to build up a negative pressure gradient in the direction of the fiber feed, which causes the fiber feed to the spinning unit, in the fiber material feed tubes.
  • FIG. 1 shows a schematic representation of the process of the open-end spinning / twisting process according to the invention within a space of a double-wire twisting spindle enclosed by a thread balloon.
  • FIG. 2 shows, partly in section, a perspective view of a double-wire twisting spindle with an upstream fiber-dissolving unit and a downstream thread winding unit.
  • FIG. 3 shows a sectional view of a double-wire twisting spindle with integrated spinning units in the form of spinning rotors.
  • the schematic representation according to FIG. 1 shows two rotor spinning devices R1 and R2 which are arranged directly adjacent to one another and driven by a motor M, and which have fiber material dissolved in the direction of arrows f1 and f2 through fiber material supply tubes 3 and 4 and directly in the spinning rotors 1 and 2 outgoing fiber material feed pipes 5 and 6 are supplied.
  • the spun threads F1 and F2 produced within the spinning rotors 1 and 2 according to the usual open-end method are drawn upwards out of the spinning rotors 1 and 2 open at the top and brought together at a union point P, from where they form a twine in accordance with the double-wire principle F3 can be combined by axially along the axial wire in the usual way through the double-wire twisting spindle shown schematically in FIG.
  • the spindle axis is withdrawn and, after exiting the radial thread storage channel, forming a thread balloon up to the centering point defined in the extension of the spindle hollow axis, defined by the two roller bodies a and b , and from there it is carried on in the usual way to a thread winding unit.
  • the spinning rotors 1 and 2 rotate in the same direction in one direction of rotation, while the spindle rotor, not shown, of the double-wire twisting spindle in the direction of the arrow f5 opposite to the two spinning rotors circulates.
  • the thread or thread f3 is passed through a thread guide element 8 attached to the upper edge of the balloon limiter 7, which in the gap between the outer feed pipes 3, 4 and in the Spinning rotors, barrel material feed pipes 5, 6 protrude.
  • the two spinning rotors 1 and 2 of the rotor spinning devices R1 and R2 are driven by the motor M by means of a drive belt 9.
  • FIG. 2 shows an outer housing 10 which surrounds a double-wire twisting spindle, which is represented essentially by the balloon limiter 7, the upper inlet opening of the spindle hollow axis 11 and the thread travel path schematically represented by the arrows f6, f7 and f8.
  • a chamber 12 is arranged within the space defined by the balloon limiter 7, in which one (R2) of the two rotor spinning devices indicated in FIG. 1 is housed.
  • the fiber material feed pipe 6 opens into the spinning rotor 2, the outer fiber material feed opening of which lies in a cover 12.3 of the chamber 12.
  • This feed opening is at a distance from the opening of the fiber material introduction tube 4 which is guided through the outer housing 10 and which forms part of a fiber material dissolving unit 14 to which a fiber band FB is fed from a can 20 for the rotor spinning device R1 (not shown in FIG. 2) the same fiber material dissolving unit 15 is provided.
  • the two spinning threads drawn up from the spinning rotor 1 and 2 are combined with one another in the region of the upper inlet opening 11a of the hollow spindle axis 11, they pass through the hollow spindle axis in the direction of the arrow f6 downward, and are then drawn off radially outward in the direction of the arrow f7 before they are pulled off essentially upwards in the direction of arrow f8 along the inner surface of the balloon limiter 7 and are guided to a delivery mechanism 16, 17 through a thread outlet opening coaxial with the spindle hollow axis on the upper side of the outer housing 10. Behind this delivery mechanism 16, 17, the finished thread is passed on to two deflection rollers 18, 19, of which at least one is pivotably mounted against spring force to form a thread length compensation mechanism, to a conventional traverse thread winding unit B.
  • a hollow shaft 23 is rotatably mounted in a machine frame represented by a spindle bench 21 by means of a bearing block 22, whose outer, that is, the lower end, can be connected to a suction air source, not shown.
  • a balloon limiter 7 is attached to the outer circumference of the spindle rotor disk 26 as a thread guide element for the thread F3 which carries a thread guide member 28 at its upper end.
  • the spindle rotor is thus essentially formed by the following elements: hollow shaft 23, spindle rotor disk 26, balloon limiter 7, thread guide member 28 and thread guide tube 29.
  • the essentially closed, rotation-proof chamber 12 On the upper end of the hollow shaft 23, with the interposition of suitable bearings, the essentially closed, rotation-proof chamber 12 is mounted, which preferably has the shape of a cylinder and comprises a bottom 12.1, an outer wall 12.2 and a removable cover 12.3.
  • the two rotor spinning devices R1 and R2 are accommodated in this chamber 12, the spinning rotors 1 and 2 of which are driven by the motor M (not shown in FIG. 3) by means of the drive belt 9.
  • the cover 12.3 Through the cover 12.3, the fiber material feed pipes 5 and 6 shown schematically in particular in FIGS. 1 and 2 open into the spinning rotors 1 and 2.
  • thread take-off tubes 31 and 32 which run coaxially above the spinning rotor axes, through which the spinning threads F1 and F2 produced in the spinning rotors 1 and 2 are drawn off before they enter through the upper inlet end 11a of the downwardly directed hollow spindle axis 11, which, for example, interposes one Annular gap seal 33 opens into the upper end of the thread guide tube 29.
  • the hollow shaft 23 At the inner end of the hollow shaft 23 there are air channels 39, 40 which open into the interior of the chamber 12 in the area of the spinning rotors 1 and 2.
  • the outer end of the hollow shaft 23 is connected in a manner not shown to a suction source, so that a vacuum is generated in the interior of the chamber 12 via the hollow shaft 23 and the air channels 39, 40, which acts in the fiber material feed pipes 5 and 6 and fiber feed to the spinning rotors 1 and 2.
  • the spinning and twisting unit described so far in connection with FIG. 3 is surrounded by an outer housing 34 which carries a removable cover 35 into which, for example, holding magnets N are inserted, which cooperate with counter magnets S inserted in the cover 12.3 of the chamber 12 in order to achieve the To hold chamber 12 and thus the rotor spinning devices R1 and R2 as a non-contact holding device against rotation about the spindle axis.
  • the motor M is supplied with energy through the spindle rotor disk 26 via a slip ring contact system 41, 42, 43 and 44, which is indicated schematically in FIG. 3, and corresponding electrical line connections. Dynamometric energy conversion can also be used to generate and supply the necessary electrical energy.
  • the thread guide element shown in particular in FIGS. 2 and 3 in the form of a balloon limiter 7, can take the form of a thread guide tube adjoining the thread guide channel 27 and optionally guided up to the upper centering point, i.e. the thread outlet opening 37, the thread guide element shown in FIG 28 can form part of this thread guide tube.
  • the thread guide tube can also end at the level of the thread guide tube 28, with the upper end of this thread guide tube then taking over the function of the thread guide gate 28 which is otherwise present.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

Doubled yarn is produced from fibre by integrated spinning and doubling. Two side by side spinning units (R1,R2) are placed within the yarn balloons of a two-for-one twister and supply singles yarn (F1,F2) to a hollow central spindle (11,29). The yarns then go through a radially outward channel (27) to a guide element (7) and the doubled yarn (F3) is drawn off at a central guide (37) and taken to a windup. The fibre opening sections (14,15) of the spinning units are outside the yarn balloons and the fibre supply ducts (3,4) line up with the feed ducts (5,6) of the spinning units.

Description

Die gebräuchlichste Art zur Herstellung eines Zwirns besteht darin, daß in einer ersten Arbeitsstufe mittels geeigneter Spinnaggregate, z.B. Rotorspinn- oder Friktionsspinneinrichtungen aus aufgelöstem Fasermaterial oder Ringspinneinrichtungen Spinnfäden hergestellt werden, die in einer folgenden Arbeitsstufe mittels Zwirneinrichtungen, z.B. Doppeldraht-Zwirneinrichtungen, zu einem Zwirn verarbeitet werden. Für die Zwirnherstellung sind damit jeweils selbständige, voneinander getrennt wirkende Spinnmaschinen einerseits und Zwirnmaschinen andererseits erforderlich, was sowohl in maschineller Hinsicht als auch hinsichtlich des Arbeitsablaufs aufwendig ist.The most common way of producing a twine is that in a first stage of work using suitable spinning units, e.g. Rotor spinning or friction spinning devices are made from dissolved fiber material or ring spinning devices, which are spun in a subsequent work step by means of twisting devices, e.g. Double wire twisting devices to be processed into a twine. For thread production, independent spinning machines acting on the one hand and threading machines on the other hand are required, which is complex both in terms of machine and in terms of the workflow.

Die Erfindung befaßt sich mit dem Gedanken, in eine im wesentlichen nach dem Doppeldrahtprinzip aufgebaute Zwirneinrichtung Spinnaggregate so zu integrieren, daß in einem kontinuierlichen Arbeitsprozeß die mittels der Spinnaggregate erzeugten Spinnfäden unmittelbar anschließend an ihre Herstellung zusammengefaßt und - dem Doppeldrahtprinzip entsprechend - zu einem Zwirn verarbeitet werden.The invention is concerned with the idea of integrating spinning units into a twisting device constructed essentially according to the double-wire principle in such a way that in a continuous working process the filaments produced by means of the spinning units are combined immediately after their manufacture and - in accordance with the double-wire principle - are processed into a twine.

Ein wesentliches Element beim Doppeldrahtzwirn-Verfahren ist der Fadenballon, in dem der Faden den stillstehenden Spulentopf der Zwirnspindel umkreisend eine Hüllkurve bildet, die bisher als undurchdringbar angesehen wird, um durch diese Hüllkurve Materialströme, z.B. auch Fasermaterial, in den von dem Fadenballon umschlossenen Raum einzuspeisen.An essential element in the double-wire twisting process is the thread balloon, in which the thread forms an envelope around the stationary bobbin of the thread spindle, which was previously regarded as impenetrable in order to allow material flows, e.g. also fiber material to feed into the space enclosed by the thread balloon.

Einen ersten Lösungsansatz für dieses Problem der Einspeisung von Materialströmen in den im wesentlichen von dem Fadenballon umschlossenen Raum ist in der DE-37 21 364 C2 beschrieben. Bei diesem bekannten Verfahren wird in den vom Fadenballon begrenzten Raum ein Strömungsmedium störungsfrei eingeleitet, indem der Spindelrotor mehrere speichenförmig angeordnete Leitschaufeln aufweist und der Fadenleitkanal durch eine dieser Leitschaufeln verläuft. Als Mediumsstrom der in den vom Fadenballon definierten Raum eingeleitet werden soll, ist im Falle einer Doppeldraht-Zwirnspindel auf klimatisierte Luft aber auch auf zweiphasige Medien, wie in Luft suspendierende Tropfen, hingewiesen, die spezielle Effekte auf das Garn ausüben sollen. Es ist auch angegeben, daß mit diesem Verfahren Fasermaterial eingespeist werden kann.A first solution to this problem of feeding material flows into the space essentially enclosed by the thread balloon is described in DE-37 21 364 C2. In this known method, a flow medium is introduced without interference into the space delimited by the thread balloon, in that the spindle rotor has a plurality of guide blades arranged in the form of a spoke and the thread guide channel runs through one of these guide blades. As a medium flow that is to be introduced into the space defined by the thread balloon, in the case of a double-wire twisting spindle, air-conditioned air is also indicated, but also two-phase media, such as drops suspended in air, which are said to have special effects on the yarn. It is also stated that fiber material can be fed in with this method.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines Zwirns aus mindestens zwei Gernkomponenten zu schaffen, bei dem der Zwirnspindel lediglich aufgelöstes Fasermaterial zugeführt wird und der fertige Zwirn aus der Spindel abgezogen wird.The invention has for its object to provide a method for producing a thread from at least two components to which the twisted spindle is only fed dissolved fiber material and the finished twisted thread is withdrawn from the spindle.

In dar aus dem Jahre 1972 stammenden DE-OS 1 785 366 ist ein Spinnverfahren behandelt, das zu diesem Zeitpunkt noch als "Elementenspinnen" bezeichnet wird, bei dem Fasermaterial zu einem Faserband geordnet wird, welches in die Form eines rotierenden Ballons gebracht wird, in welchem dem Faserband pro Umdrehung des Ballons mindestens zwei Drehungen erteilt werden und das entstehende Garn abgezogen wird. Die Einrichtung zur Durchführung dieses bekannten Spinnverfahrens besitzt eine auf einer Spindel angeordnete Spinnkammer, in welche das Fasermaterial durch ein koaxial zur Spindelachse verlaufendes Fasereingangsrohr und einen radial durch den Spindelrotor verlaufenden Kanal eingeführt wird. Innerhalb der Spinnkammer befindet sich ein Sammelring für das Fasermaterial, das dort zu einer Lunte geformt wird. Das verstreckte Faserband wird durch einen in dar Spindelachse liegenden Kanal geführt, in dem es eine erste Drehung erhält und aus dem es in radialer Richtung austritt und in einen die Spinnkammer umgebenden, rotierenden Ballon eintritt, in dem es die zweite Drehung erhält.DE-OS 1 785 366, dating from 1972, deals with a spinning process, which at this time is still referred to as "element spinning", in which fiber material is arranged into a fiber band, which is brought into the form of a rotating balloon, in which is given to the sliver at least two turns per revolution of the balloon and the resulting yarn is drawn off. The device for carrying out this known spinning process has a spinning chamber arranged on a spindle, into which the fiber material is introduced through a fiber input tube running coaxially to the spindle axis and a channel running radially through the spindle rotor. Inside the spinning chamber there is a collecting ring for the fiber material, which is formed into a fuse there. The drawn fiber sliver is guided through a channel lying in the spindle axis, in which it receives a first rotation and from which it emerges in the radial direction and enters a rotating balloon surrounding the spinning chamber, in which it receives the second rotation.

Dieser Gedanke wird in dar DE 4 023 397 A1 aus dem Jahre 1992 wieder aufgegriffen, indem wiederum ein Verfahren zum Spinnen von Fasern zu Garn sowie eine Spinnvorrichtung zur Durchführung des Verfahrens beschrieben wird, bei dem Fasermaterial einem Spinnrotor zugeführt wird und das abgezogene Garn von der Abzugsöffnung in einen koaxial zum Spinnrotor mit umgekehrtem Drehsinn rotierenden Bogen außen um den Spinnrotor herum- und abgeführt wird. Bei einer Einrichtung zur Durchführung dieses bekannten Spinnverfahrans ist der Spinnrotor in einem Doppeldrahtrotor gelagert, dar seinerseits in einem stationären Gehäuse drehbar gelagert ist. Der vom Spinnrotor abgezogene Faden wird durch ein in dem Doppeldrahtrotor angeordneten, in einem Bogen außen um den Spinnrotor herumlaufenden Abzugskanal zur gemeinsamen Achse des Spinnrotors und des Doppeldrahtrotors zurückgeführt und durch die Antriebsvorrichtung des Doppeldrahtrotors hindurch nach oben abgeführt. Dabei wird dem Faden eine zweite Drehung aufgeprägt. Das Fasermaterial wird dem Spinnrotor durch einen Zuführkanal im Doppeldrahtrotor zugeführt, dessen Aufnahmeöffnung symmetrisch und dessen Ausgabeöffnung exzentrisch zur Achse des Doppeldrahtrotors liegt.This idea is taken up again in DE 4 023 397 A1 from 1992, by again describing a method for spinning fibers into yarn and a spinning device for carrying out the method, in which fiber material is fed to a spinning rotor and the drawn-off yarn from the Discharge opening in an arc rotating coaxially to the spinning rotor with the opposite direction of rotation around and around the spinning rotor becomes. In a device for carrying out this known spinning process, the spinning rotor is mounted in a double-wire rotor, which in turn is rotatably mounted in a stationary housing. The thread drawn off from the spinning rotor is returned to the common axis of the spinning rotor and the double-wire rotor by a draw-off channel arranged in the double-wire rotor and running in an arc around the outside of the spinning rotor, and is discharged upwards through the drive device of the double-wire rotor. A second turn is applied to the thread. The fiber material is fed to the spinning rotor through a feed channel in the double-wire rotor, the receiving opening of which is symmetrical and the discharge opening is eccentric to the axis of the double-wire rotor.

Ein Verfahren zur Herstellung eines Zwirns aus mindestens zwei Garnkomponenten, bei dem der Zwirnspindel lediglich aufgelöstes Fasermaterial zugeführt wird und der fertige Zwirn aus der Spindel abgezogen wird, ist bisher nicht bekennt geworden.A method for producing a thread from at least two yarn components, in which only dissolved fiber material is fed to the thread spindle and the finished thread is pulled out of the spindle, has not hitherto been disclosed.

Die Lösung der oben angegebenen Aufgabe erfolgt nach der Erfindung verfahrensgemäß mit den Merkmalen des Patentanspruchs 1. Eine Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens ist im Patentanspruch 8 beschrieben. Vorteilhafte Weiterbildungen dar Vorrichtung sind in den abhängigen Ansprüchen beschrieben.The object stated above is achieved according to the invention in accordance with the method with the features of patent claim 1. A device for carrying out the method according to the invention is described in patent claim 8. Advantageous further developments of the device are described in the dependent claims.

Der Grundgedanke der Erfindung besteht darin, das in die Zwirnspindel durch den rotierenden Fadenballon eingeleitete Fasermaterial direkt zur Herstellung eines Zwirns aus mindestens zwei Spinnfäden zu verwenden und dieses Fasermaterial so zuzuführen, daß es einerseits den Ballon nicht stört und andererseits genügend Raum vorhanden ist, um innerhalb des vom Fadenballon definierten Raumes mehrere Spinnaggregate unterzubringen, denen das Fasermaterial in getrennten Strömen zugeführt wird, während die von den Spinnvorrichtungen abgezogenen Spinnfäden gemeinsam durch die Spindelhohlachse und den Fadenballon geführt werden. Dabei steht gegenüber dem üblichen Doppeldraht-Zwirnverfahren der bisher von den notwendigen Vorlagespulen eingenommene Raum den Spinnaggregaten und deren Antriebsmechanismus zur Verfügung.The basic idea of the invention is to use the fiber material introduced into the twisting spindle through the rotating thread balloon directly for the production of a thread from at least two spun threads and this fiber material so that it does not disturb the balloon on the one hand and on the other hand there is enough space to accommodate several spinning units within the space defined by the thread balloon, to which the fiber material is fed in separate streams, while the spinning threads drawn off by the spinning devices together through the hollow spindle axis and Thread balloon are guided. Compared to the usual double-wire twisting process, the space previously occupied by the necessary supply spools is available to the spinning units and their drive mechanism.

Der spinn- und zwirntechnologische Ablauf bei dem erfindungsgemäßen Open-end-Spinn-Zwirn-System ist wie folgt:
Aufgelöstes Fasermaterial wird vorzugsweise kurz oberhalb oder im vorzugsweise oberen Bereich eines mit dem Fadenballon mitrotierenden Fadenleitelementes - Ballonbegrenzer oder Fadenführungsrohr - durch den Fadenballon dem Innenraum der Spindel zugeführt. An der Stelle dar Durchquerung das Faserstroms ist der Faden vorzugsweise durch ein an dem mitrotierenden Fadenleitelement angebrachtes Fadenleitorgan geführt. Je ein Faserstrom versorgt ein Spinnaggregat, z.B. einen Spinnrotor. Die Spinnrotoren werden elektromotorisch entgegengesetzt zur Drehrichtung des Spindelrotors der Doppeldraht-Zwirnspindel angetrieben. Aus jedem Spinnrotor wird ein Spinnfaden nach oben abgezogen und dem Spindelzentrum, das heißt der Hohlachse der Doppeldraht-Zwirnspindel, zugeführt. Im Vereinigungspunkt der beiden Spinnfäden entsteht der Fachverband, woran sich direkt die erste Zwirnzone dar Doppeldraht-Zwirnspindel anschließt. Der Faden wird anschließend durch den üblichen Fadenleitkanal radial nach außen weitergefördert und entlang des mit dem Spindelrotor mitrotierenden Fadenleitelementes nach oben umgelenkt, wobei er im Bereich der Faserzuführung bzw. Fasereinspeisung durch das ebenfalls mitrotierende Fadenleitorgan geführt wird, bevor er den in der Verlängerung dar Spindelhohlachse liegenden Zentrierpunkt, beispielsweise eine Ballonfadenführeröse, durchläuft.
Oberhalb dieser Ballonfadenführeröse ist ein positiv angetriebenes und gestellfest angeordnetes Abzugswerk angebracht, an das sich ein übliches Fadenaufwickelaggregat anschließt. Zwischen dem Abzugswerk und dem Aufwickelaggregat ist ein übliches Fadenlängen-Ausgleichswerk angeordnet, welches eine gewisse Fadenspeicherfunktion hat.The spinning and twisting technology process in the open-end spinning-twisting system according to the invention is as follows:
Dissolved fiber material is preferably fed through the thread balloon to the interior of the spindle just above or in the preferably upper region of a thread guide element that rotates with the thread balloon - balloon limiter or thread guide tube. At the point of crossing the fiber stream, the thread is preferably guided through a thread guide element attached to the co-rotating thread guide element. Each fiber stream supplies a spinning unit, for example a spinning rotor. The spinning rotors are driven by an electric motor in the opposite direction to the direction of rotation of the double-twisted spindle. A spinning thread is pulled up from each spinning rotor and fed to the spindle center, that is to say the hollow axis of the double-wire twisting spindle. At the point where the two spun threads merge, the trade association is created, which is directly followed by the first twisting zone of the double-wire twisting spindle connects. The thread is then conveyed radially outwards through the usual thread guide channel and deflected upwards along the thread guide element that also rotates with the spindle rotor, wherein it is guided in the area of the fiber feed or fiber feed through the thread guide element that also rotates before it lies in the extension of the spindle hollow axis Centering point, for example a balloon thread guide eyelet, passes through.
Above this balloon thread guide eyelet is a positively driven take-off unit which is fixed to the frame and which is followed by a conventional thread winding unit. Between the take-off unit and the take-up unit, a conventional thread length compensation unit is arranged, which has a certain thread storage function.

Die Zuführung bzw. Einspeisung des aufgelösten Fasermaterials zu den bzw. in die Spinnaggregate erfolgt vorzugsweise mittels Unterdruck, der im Bereich der Spinnaggregate durch ein im Bereich dar Spindelachse verlaufendes Saugrohr aufgebaut wird, das an seinem äußeren Ende an eine Saugquelle angeschlossen ist, während an das innere Ende dieses Saugrohres Luftkanäle anschließen, die so geführt sind, daß sie in den Fasermaterial-Einspeisungsrohren dar Spinnaggregate einen in Richtung der Fasereinspeisung negativen, die Fasereinspeisung zu den Spinnaggregatan bewirkenden Druckgradienten aufzubauen vermögen.The feeding or feeding of the dissolved fiber material to or into the spinning units is preferably carried out by means of negative pressure, which is built up in the area of the spinning units by a suction pipe running in the area of the spindle axis, which is connected at its outer end to a suction source, while the Connect the inner end of this suction tube to air channels which are guided so that they are able to build up a negative pressure gradient in the direction of the fiber feed, which causes the fiber feed to the spinning unit, in the fiber material feed tubes.

Getrennte Antriebe der Spinnrotoren, wie auch der Doppeldraht-Zwirnspindel, lassen die Einstellung eines beliebigen Verhältnisses zwischen Spinn- und Zwirndrehung zu.Separate drives of the spinning rotors, as well as the double-wire twisting spindle, allow the setting of any ratio between the spinning and twisting twist.

Die Erfindung wird im folgenden anhand der Zeichnung näher beschrieben.The invention is described below with reference to the drawing.

Figur 1 zeigt in schematischer Darstellung den Verfahrene-Ablauf des erfindungsgemäßen Open-end-Spinn-Zwirnverfahrens innerhalb eines von einem Fadenballon umschlossenen Raumes einer Doppeldraht-Zwirnspindel.FIG. 1 shows a schematic representation of the process of the open-end spinning / twisting process according to the invention within a space of a double-wire twisting spindle enclosed by a thread balloon.

Figur 2 zeigt teilweise im Schnitt eine perspektivische Ansicht einer Doppeldraht-Zwirnspindel mit vorgeschaltetem Faserauflösungswerk und nachgeschaltetem Fadenaufwickelaggregat.FIG. 2 shows, partly in section, a perspective view of a double-wire twisting spindle with an upstream fiber-dissolving unit and a downstream thread winding unit.

Figur 3 zeigt eine Schnittansicht einer Doppeldraht-Zwirnspindel mit darin integrierten Spinnaggregaten in Form von Spinnrotoren.FIG. 3 shows a sectional view of a double-wire twisting spindle with integrated spinning units in the form of spinning rotors.

Die schematische Darstellung gemäß Figur 1 zeigt zwei unmittelbar benachbart nebeneinander angeordnete und von einem Motor M angetriebene Rotor-Spinnvorrichtungen R1 und R2, denen aufgelöstes Fasermaterial in Richtung der Pfeile f1 und f2 durch Fasermaterial-Zuführungsrohre 3 bzw. 4 und unmittelbar in den Spinnrotoren 1 und 2 ausmündende Fasermaterial-Einspeisungsrohren 5 bzw. 6 zugeführt werden. Die innerhalb der Spinnrotoren 1 und 2 nach dem üblichen Open-End-Verfahran hergestellten Spinnfäden F1 und F2 werden aus den oben offenen Spinnrotoren 1 und 2 nach oben hin abgezogen und in einem Vereinigungspunkt P zusammengeführt, von wo aus sie entsprechend dem Doppeldrahtprinzip zu einem Zwirn F3 vereinigt werden, indem sie in üblicher Weise axial durch die in Figur 1 im wesentlichen nur durch den Ballonbegrenzer 7 schematisiert dargestellten Doppeldraht-Zwirnspindel axial entlang der Spindelachse abgezogen und nach Austritt aus dem radial verlaufenden Fadenspeicherkanal unter Bildung eines Fadenballons bis zu dem in der Verlängerung der Spindelhohlachse liegenden, durch die beiden Walzenkörper a und b definierten Zentrierpunkt abgezogen und von da aus in üblicher Weise zu einem Fadenaufwickelaggregat weitergeführt werden. Wie in Figur 1 durch die Pfeile f3 und f4 einerseits und den Pfeil f5 andererseits angedeutet, laufen die Spinnrotoren 1 und 2 gleichsinnig in der einen Drehrichtung um, während der nicht dargestellte Spindelrotor der Doppeldraht-Zwirnspindel in Richtung des Pfeiles f5 entgegengesetzt zu den beiden Spinnrotoren umläuft.The schematic representation according to FIG. 1 shows two rotor spinning devices R1 and R2 which are arranged directly adjacent to one another and driven by a motor M, and which have fiber material dissolved in the direction of arrows f1 and f2 through fiber material supply tubes 3 and 4 and directly in the spinning rotors 1 and 2 outgoing fiber material feed pipes 5 and 6 are supplied. The spun threads F1 and F2 produced within the spinning rotors 1 and 2 according to the usual open-end method are drawn upwards out of the spinning rotors 1 and 2 open at the top and brought together at a union point P, from where they form a twine in accordance with the double-wire principle F3 can be combined by axially along the axial wire in the usual way through the double-wire twisting spindle shown schematically in FIG. 1 only by the balloon limiter 7 The spindle axis is withdrawn and, after exiting the radial thread storage channel, forming a thread balloon up to the centering point defined in the extension of the spindle hollow axis, defined by the two roller bodies a and b , and from there it is carried on in the usual way to a thread winding unit. As indicated in Figure 1 by the arrows f3 and f4 on the one hand and the arrow f5 on the other hand, the spinning rotors 1 and 2 rotate in the same direction in one direction of rotation, while the spindle rotor, not shown, of the double-wire twisting spindle in the direction of the arrow f5 opposite to the two spinning rotors circulates.

Da die Fasermaterialzuführung durch die von dem umlaufenden Fadenballon definierte Hüllkurve hindurch erfolgen muß, wird der Zwirn bzw. Faden f3 durch ein am oberen Rand des Ballonbegrenzers 7 angebrachtes Fadenleitorgan 8 hindurchgeführt, das in den Spalt zwischen den äußeren Zuführungsrohren 3, 4 und den in den Spinnrotoren ausmündenden Fassermaterial-Einspeisungsrohren 5, 6 ragt.Since the fiber material must be fed through the envelope defined by the revolving thread balloon, the thread or thread f3 is passed through a thread guide element 8 attached to the upper edge of the balloon limiter 7, which in the gap between the outer feed pipes 3, 4 and in the Spinning rotors, barrel material feed pipes 5, 6 protrude.

Die beiden Spinnrotoren 1 und 2 der Rotor-Spinnvorrichtungen R1 und R2 werden von dem Motor M mittels eines Antriebsriemens 9 angetrieben.The two spinning rotors 1 and 2 of the rotor spinning devices R1 and R2 are driven by the motor M by means of a drive belt 9.

Figur 2 zeigt ein Außengehäuse 10, das eine Doppeldraht-Zwirnspindel umgibt, die im wesentlichen durch den Ballonbegrenzer 7, die obere Einlauföffnung der Spindelhohlachse 11 und den durch die Pfeile f6, f7 und f8 schematisiert dargestellten Fadenlaufweg dargestellt ist. Innerhalb des von dem Ballonbegrenzer 7 bestimmten Raumes ist eine Kammer 12 angeordnet, in der eine (R2) der beiden in Figur 1 angedeuteten Rotor-Spinnvorrichtungen untergebracht ist. In den Spinnrotor 2 mündet das Fasermaterial-Einspeisungsrohr 6, dessen äußere Fasermaterial-Einspeisungsöffnung in einem Deckel 12.3 der Kammer 12 liegt. Dieser Einspeisungsöffnung liegt die Öffnung des durch das Außengehäuse 10 geführten Fasermaterial-Einführungsrohrs 4 mit Abstand gegenüber, welches einen Teil eines Fasermateriel-Auflösungsaggregates 14 bildet, dem ein Faserband FB aus einer Kanne 20 zugeführt wird Für die in Figur 2 nicht dargestellte Rotor-Spinnvorrichtung R1 ist ein gleiches Fasermaterial-Auflösungsaggregat 15 vorgesehen.FIG. 2 shows an outer housing 10 which surrounds a double-wire twisting spindle, which is represented essentially by the balloon limiter 7, the upper inlet opening of the spindle hollow axis 11 and the thread travel path schematically represented by the arrows f6, f7 and f8. A chamber 12 is arranged within the space defined by the balloon limiter 7, in which one (R2) of the two rotor spinning devices indicated in FIG. 1 is housed. The fiber material feed pipe 6 opens into the spinning rotor 2, the outer fiber material feed opening of which lies in a cover 12.3 of the chamber 12. This feed opening is at a distance from the opening of the fiber material introduction tube 4 which is guided through the outer housing 10 and which forms part of a fiber material dissolving unit 14 to which a fiber band FB is fed from a can 20 for the rotor spinning device R1 (not shown in FIG. 2) the same fiber material dissolving unit 15 is provided.

Die beiden aus den Spinnrotoran 1 und 2 nach oben abgezogenen Spinnfäden werden im Bereich der oberen Einlauföffnung 11a der Spindelhohlachse 11 miteinander vereinigt, sie durchlaufen die Spindelhohlachse in Richtung das Pfeiles f6 nach unten, werden anschließend in Richtung des Pfeiles f7 radial nach außen abgezogen, bevor sie im wesentlichen in Richtung das Pfeiles f8 entlang der Innenfläche das Ballonbegrenzers 7 nach oben abgezogen und durch eine koaxial zur Spindelhohlachse an der Oberseite des Außengehäuses 10 befindliche Fadenaustrittsöffnung zu einem Lieferwerk 16, 17 geführt werden. Hinter diesem Lieferwerk 16, 17 wird der fertige Zwirnfaden über zwei Umlenkrollen 18, 19, von denen mindestens eine zur Bildung eines Fadenlängen-Ausgleichswerkes gegen Federkraft verschwenkbar gelagert ist, zu einem üblichen Changierfadenführer-Aufwickelaggregat B weitergeführt.The two spinning threads drawn up from the spinning rotor 1 and 2 are combined with one another in the region of the upper inlet opening 11a of the hollow spindle axis 11, they pass through the hollow spindle axis in the direction of the arrow f6 downward, and are then drawn off radially outward in the direction of the arrow f7 before they are pulled off essentially upwards in the direction of arrow f8 along the inner surface of the balloon limiter 7 and are guided to a delivery mechanism 16, 17 through a thread outlet opening coaxial with the spindle hollow axis on the upper side of the outer housing 10. Behind this delivery mechanism 16, 17, the finished thread is passed on to two deflection rollers 18, 19, of which at least one is pivotably mounted against spring force to form a thread length compensation mechanism, to a conventional traverse thread winding unit B.

Gemäß Figur 3 ist in einem durch eine Spindelbank 21 repräsentiertan Maschinengestell mittels eines Lagerblocks 22 ein Hohlschaft 23 drehbar gelagert, dessen äußeres, das heißt unteres Ende, an eine nicht dargestellte Saugluftquelle anschließbar ist. Der über den Wirtel 24 von einem Tangentialantriebsriemen 25 antreibbare, einen Teil des Spindelrotors bildende Hohlschaft 23 trägt eine radial gerichtete Spindelrotorscheibe 26 mit einem im wesentlichen radial geführten Fadenleitkanal 27. Am Außenumfang der Spindelrotorscheibe 26 ist als ein Fadenleitelement für den Faden F3 ein Ballonbegrenzer 7 befestigt, der an seinem oberen Ende ein Fadenleitorgan 28, trägt. In das innere Ende des Fadenleitkanals 27 mündet als ein Teil der Spindelhohlachse ein an seinem unteren Ende ebgebogenes Fadenführungsrohr 29, das so in den Hohlschaft 23 eingesetzt ist, daß zwischen dem Hohlschaft und dem Fadenführungsrohr 29 Luftkanäle 30 frei bleiben. Der Spindelrotor wird damit insgesamt im wesentlichen von folgenden Elementen gebildet: Hohlschaft 23, Spindelrotorscheibe 26, Ballonbegrenzer 7, Fadenleitorgan 28 sowie Fadenführungsrohr 29.According to FIG. 3, a hollow shaft 23 is rotatably mounted in a machine frame represented by a spindle bench 21 by means of a bearing block 22, whose outer, that is, the lower end, can be connected to a suction air source, not shown. The hollow shaft 23, which can be driven by a tangential drive belt 25 and forms part of the spindle rotor, has a radially directed spindle rotor disk 26 with an essentially radially guided thread guide channel 27. A balloon limiter 7 is attached to the outer circumference of the spindle rotor disk 26 as a thread guide element for the thread F3 which carries a thread guide member 28 at its upper end. In the inner end of the thread guide channel 27 opens as a part of the spindle hollow axis at its lower end bent at the lower end thread guide tube 29, which is inserted into the hollow shaft 23 so that 29 air channels 30 remain free between the hollow shaft and the thread guide tube. The spindle rotor is thus essentially formed by the following elements: hollow shaft 23, spindle rotor disk 26, balloon limiter 7, thread guide member 28 and thread guide tube 29.

Auf dem oberen Ende des Hohlschafts 23 ist unter Zwischenschaltung von geeigneten Lagern die im wesentlichen geschlossene, gegen Drehung gesicherte Kammer 12 gelagert, die vorzugsweise die Form eines Zylinders hat und einen Boden 12.1, eine Außenwand 12.2 und einen abnehmbaren Deckel 12.3 umfaßt. Innerhalb dieser Kammer 12 sind die beiden Rotor-Spinnvorrichtungen R1 und R2 untergebracht, deren Spinnrotoren 1 und 2 mittels des Antriebsriemens 9 von dem in Figur 3 nicht dargestellten Motor M angetrieben werden. Durch den Deckel 12.3 münden die insbesondere in den Figuren 1 und 2 schematisch dargestellten Fasermaterial-Einspeisungsrohre 5 und 6 in die Spinnrotoren 1 und 2. Durch den Deckel 12.3 sind weiterhin koaxial oberhalb der Spinnrotorachsen verlaufende Fadenabzugsrohre 31 und 32 geführt, durch die die in den Spinnrotoren 1 und 2 hergestellten Spinnfäden F1 bzw. F2 abgezogen werden, bevor sie durch das obere Einlaufende 11a der nach unten gerichteten Spindelhohlachse 11 einlaufen, die unter Zwischenschaltung beispielsweise einer Ringspaltdichtung 33 in das obere Ende des Fadenführungsrohres 29 mündet.On the upper end of the hollow shaft 23, with the interposition of suitable bearings, the essentially closed, rotation-proof chamber 12 is mounted, which preferably has the shape of a cylinder and comprises a bottom 12.1, an outer wall 12.2 and a removable cover 12.3. The two rotor spinning devices R1 and R2 are accommodated in this chamber 12, the spinning rotors 1 and 2 of which are driven by the motor M (not shown in FIG. 3) by means of the drive belt 9. Through the cover 12.3, the fiber material feed pipes 5 and 6 shown schematically in particular in FIGS. 1 and 2 open into the spinning rotors 1 and 2. Through the cover 12.3 furthermore, thread take-off tubes 31 and 32, which run coaxially above the spinning rotor axes, through which the spinning threads F1 and F2 produced in the spinning rotors 1 and 2 are drawn off before they enter through the upper inlet end 11a of the downwardly directed hollow spindle axis 11, which, for example, interposes one Annular gap seal 33 opens into the upper end of the thread guide tube 29.

An das innere Ende des Hohlschaftes 23 schließen sich Luftkanäle 39, 40 an, die in den Innenraum der Kammer 12 im Bereich der Spinnrotoren 1 und 2 einmünden. Das äußere Ende des Hohlschaftes 23 ist in nicht dargestellter Weise an eine Saugquelle angeschlossen, so daß über den Hohlschaft 23 und die Luftkanäle 39, 40 im Innenraum der Kammer 12 ein Unterdruck erzeugt wird, der in die Fasermaterial-Einspeisungsrohre 5 und 6 hineinwirkt und Fasereinspeisung zu den Spinnrotoren 1 und 2 bewirkt.At the inner end of the hollow shaft 23 there are air channels 39, 40 which open into the interior of the chamber 12 in the area of the spinning rotors 1 and 2. The outer end of the hollow shaft 23 is connected in a manner not shown to a suction source, so that a vacuum is generated in the interior of the chamber 12 via the hollow shaft 23 and the air channels 39, 40, which acts in the fiber material feed pipes 5 and 6 and fiber feed to the spinning rotors 1 and 2.

Das bisher in Verbindung mit Figur 3 beschriebene Spinn- und Zwirnaggregat ist von einem Außengehäuse 34 umgeben, das einen abnehmbaren Deckel 35 trägt, in den beispielsweise Haltemagnete N eingesetzt sind, die mit in den Deckel 12.3 der Kammer 12 eingesetzten Gegenmagneten S zusammenwirken, um die Kammer 12 und damit die Rotor-Spinnvorrichtungen R1 und R2 als berührungslos wirksamme Halteeinrichtung gegen Drehung um die Spindelachse festzuhalten. An der Oberseite das durch den Deckel 35 geschlossenen Gehäuses 34 befindet sich als koaxial zur Spindelhohlachse liegender Zentrierpunkt eine Fadenaustrittsöffnung 37, an die sich entsprechend Figur 2 das Abzugswerk 16, 17 für den Zwirnfaden F3 anschließt.The spinning and twisting unit described so far in connection with FIG. 3 is surrounded by an outer housing 34 which carries a removable cover 35 into which, for example, holding magnets N are inserted, which cooperate with counter magnets S inserted in the cover 12.3 of the chamber 12 in order to achieve the To hold chamber 12 and thus the rotor spinning devices R1 and R2 as a non-contact holding device against rotation about the spindle axis. On the upper side of the housing 34 closed by the cover 35 there is a thread outlet opening 37 as a centering point lying coaxially to the spindle hollow axis, to which the take-off mechanism 16, 17 for the thread F3 is connected according to FIG.

Die Energieversorgung des Motors M erfolgt durch die Spindelrotorscheibe 26 hindurch über ein in Figur 3 schematisch angedeutetes Schleifringkontaktsystem 41, 42, 43 und 44 und entsprechende elektrische Leitungsanschlüsse. Auch die dynamometrische Energieumwandlung kann zur Erzeugung und Zuführung der notwendigen elektrischen Energie benutzt werden.The motor M is supplied with energy through the spindle rotor disk 26 via a slip ring contact system 41, 42, 43 and 44, which is indicated schematically in FIG. 3, and corresponding electrical line connections. Dynamometric energy conversion can also be used to generate and supply the necessary electrical energy.

Die Betriebsweise der insbesondere in Figur 3 im einzelnen dargestellten Spinn-Zwirn-Vorrichtung ergibt sich im wesentlichen aus der obigen Beschreibung der Figuren 1 und 2, so daß sich dazu weitere Ausführungen erübrigen.The mode of operation of the spinning-twisting device, which is shown in particular in FIG. 3, results essentially from the above description of FIGS. 1 and 2, so that further explanations are unnecessary.

Das insbesondere in den Figuren 2 und 3 in Form eines Ballonbegrenzers 7 dargestellte Fadenleitelement kann euch die Form eines an den Fadenleitkanal 27 anschließenden und gegebenenfalls bis zum oberen Zentrierpunkt, das heißt der Fadenaustrittsöffnung 37, geführten Fadenführungsrohres haben, wobei denn das in Figur 3 dargestellte Fadenleitorgan 28 einen Teil dieses Fadenführungsrohres bilden kann. Das Fadenführungsrohr kann jedoch auch in Höhe des Fadenleitorgans 28 enden, wobei dann das obere Ende dieses Fadenführungsrohres die Funktion des ansonsten vorhandenen Fadenleitorgans 28 übernimmt.The thread guide element, shown in particular in FIGS. 2 and 3 in the form of a balloon limiter 7, can take the form of a thread guide tube adjoining the thread guide channel 27 and optionally guided up to the upper centering point, i.e. the thread outlet opening 37, the thread guide element shown in FIG 28 can form part of this thread guide tube. However, the thread guide tube can also end at the level of the thread guide tube 28, with the upper end of this thread guide tube then taking over the function of the thread guide gate 28 which is otherwise present.

Claims (17)

Verfahren zur Herstellung eines Zwirns aus Fasermaterial, indem man mittels mindestens zwei benachbart angeordneten Spinnaggregaten (R1, R2) einzelne Spinnfäden (F1, F2) erzeugt, die zuerst in einer Hohlachse (11) zusammengeführt werden, um diese gemeinsam in einer ersten Fadenlaufrichtung zu durchlaufen, und die anschließend in vorwiegend radialer Richtung aus der Hohlachse (11) herausgeführt werden, um denn - dem Doppeldrahtprinzip entsprechend - entgegengesetzt zur ersten Laufrichtung einen um die Spinnaggregate rotierenden Fadenballon zu bilden und zu durchlaufen und durch einen in der Verlängerung der Hohlachse liegenden Zentrierpunkt (37) einem Aufwickelaggregat zugeführt zu werden, wobei jedem Spinnaggregat aufgelöstes Fasermaterial durch die vom Fadenballon definierte Hüllkurve hindurch zugeführt wird,Process for producing a thread from fiber material by producing individual spun threads (F1, F2) by means of at least two adjacent spinning units (R1, R2), which are first brought together in a hollow axis (11) in order to pass through them together in a first thread running direction , and which are then led out of the hollow axis (11) in a predominantly radial direction, so that - in accordance with the double wire principle - contrary to the first direction of rotation, they form and run through a thread balloon rotating around the spinning units and through a centering point located in the extension of the hollow axis ( 37) to be fed to a winding unit, with each spinning unit being supplied with dissolved fiber material through the envelope defined by the thread balloon, Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Spinnaggregate Rotor-Spinnvorrichtungen mit im gleichen Drehsinn angetriebenen Rotoren dienen.Method according to claim 1, characterized in that rotor spinning devices with rotors driven in the same direction of rotation serve as spinning units. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Rotoren im entgegengesetzten Drehsinn rotieren wie der Fadenballon.A method according to claim 2, characterized in that the rotors rotate in the opposite direction of rotation as the thread balloon. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die Rotoren im gleichen Drehsinn rotieran wie der Fadenballon.Method according to claim 2, characterized in that the rotors rotate in the same direction of rotation as the thread balloon. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Spinnaggregate Rotor-Spinnvorrichtungen mit in entgegengesetztem Drehsinn angetriebenen Rotoren dienen.Method according to Claim 1, characterized in that rotor spinning devices with rotors driven in opposite directions of rotation serve as spinning units. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß das Fasermaterial den Spinnaggregaten im wesentlichen von der Seite her bzw. radial zugeführt wird.Method according to one of claims 1 to 5, characterized in that the fiber material is fed to the spinning units essentially from the side or radially. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß im Bereich dar Zuführung des Fasermaterials durch den Fadenballon der den Fadenballon bildende Faden durch ein mit dem Fadenballon rotierendes Fadenleitorgan (8) hindurchgeführt ist.Method according to one of claims 1 to 6, characterized in that in the region of the supply of the fiber material through the thread balloon the thread forming the thread balloon is passed through a thread guide member (8) rotating with the thread balloon. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß man den Faden im Fadenballonbereich an einem mit dem Fadenballon mitrotierenden Ballonbegrenzer (7) abstützt.Method according to one of Claims 1 to 7, characterized in that the thread is supported in the thread balloon region on a balloon limiter (7) which also rotates with the thread balloon. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß man den Faden im Fadenballonbereich ein um die Spindelachse rotierendes Fadenführungsrohr durchlaufen läßt.Method according to one of claims 1 to 7, characterized in that the thread in the thread balloon area is passed through a thread guide tube rotating about the spindle axis. Verfahren nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Zuführung das Fasermaterials unter der Wirkung eines in Richtung der Faserzuführung negativen Druckgradienten erfolgt.Method according to one of claims 1 to 7, characterized in that the supply of the fiber material takes place under the effect of a negative pressure gradient in the direction of the fiber supply. Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß die Zuführung des Fasermaterials mittels Unterdruck erfolgt, der im Bereich der Spinnaggregate durch einen im Bereich der Spindelachse verlaufenden, ein Saugrohr bildenden Hohlschaft (23) aufgebaut wird.A method according to claim 10, characterized in that the supply of the fiber material by means of negative pressure, which is built up in the area of the spinning units by a hollow shaft (23) running in the area of the spindle axis and forming a suction tube. Vorrichtung zur Durchführung des Verfahrens nach Anspruch 1, mit mindestens einem drehbar in einem Maschinengestell (21) gelagerten, antreibbaren Spindelrotor und einer Spindelhohlachse (11, 29), an die sich ein im wesentlichen radial nach außen geführter Fadenleitkanal (27) für einen Faden anschließt, welcher nach dem Austritt aus dem Fadenleitkanal (27) unter Ballonbildung zu einem in der Verlängerung der Spindelhohlachse (11, 29) liegenden Zentrierpunkt (37) und danach zu einem Fadenaufwickelaggregat (B) weitergeführt wird, und mit einer Einrichtung zum Zuführen von aufgelöstem Fasermaterial in den durch den Fadenballon definierten Raum, dadurch gekennzeichnet, daß innerhalb des von dem Fadenballon definierten Raumes mindestens zwei Spinnaggregate (R1, R2) mit jeweils zugeordneten Fasermaterial-Einspeisungsrohren (5, 6) angeordnet sind, deren äußeren Fasermaterial-Einspeisungsöffnungen außerhalb des von dem Fadenballon definierten Raumes Fasermaterial-Zuführungsrohre (3, 4) als Teile von Fasermaterial-Auflösungsaggregaten (14, 15) gegenüberliegen, daß den Spinnaggregatan Fadenabführungsrohre (31, 32) zugeordnet sind, derart, daß die mittels der Spinnaggregate erzeugten Spinnfäden (F1, F2) gemeinsam und zentral in die Spindelhohlachse (11, 29) einführbar sind, und daß am Spindelrotor ein sich an die Austrittsöffnung das Fadenleitkanals (27) anschließendes Fadenleitelement (7) fest angeordnet ist.Apparatus for carrying out the method according to claim 1, having at least one drivable spindle rotor which is rotatably mounted in a machine frame (21) and a hollow spindle axis (11, 29) to which a thread guide channel (27) for a thread is guided, which is guided essentially radially outwards which, after emerging from the thread guide channel (27) with balloon formation, is passed to a centering point (37) lying in the extension of the hollow spindle axis (11, 29) and then to a thread winding unit (B), and with a device for supplying dissolved fiber material in the space defined by the thread balloon, characterized in that within the space defined by the thread balloon at least two spinning units (R1, R2) with respectively assigned fiber material feed pipes (5, 6) are arranged, the outer fiber material feed openings outside of which Thread balloon of defined space fiber material feed pipes (3, 4) as parts of fiber material dissolving units (14, 15) oppose that the spinning units are assigned to thread discharge pipes (31, 32) in such a way that the spinning threads (F1, F2) produced by the spinning units together and centrally in the hollow spindle axis (11, 29) can be inserted, and that on the spindle rotor, the thread guide channel is located at the outlet opening (27) adjoining thread guide element (7) is fixed. Vorrichtung nach Anspruch 12, dadurch gekennzeichnet, daß als Teil des mit dem Spindelrotor rotierenden Fadenleitelementes (7) ein Fadenleitorgan (8) vorgesehen ist, das in den Spalt zwischen den äußeren Fasermaterial-Einspeisungsöffnungen der Fasermaterial-Einspeisungsrohre (5, 6) und den gegenüberliegenden Mündungsöffnungen der Fasermaterial-Zuführungsrohre (3, 4) ragt.Apparatus according to claim 12, characterized in that as part of the thread guide element (7) rotating with the spindle rotor, a thread guide member (8) is provided which extends into the gap between the outer fiber material feed openings of the fiber material feed tubes (5, 6) and the opposite ones Mouth openings of the fiber material feed pipes (3, 4) protrudes. Vorrichtung nach Anspruch 12 oder 13, dadurch gekennzeichnet, daß der Spindelrotor einen an seinem äußeren Ende an eine Luftleitung anschließbaren Hohlschaft (23) umfaßt, auf dem eine im wesentlichen geschlossene, gegen Drehung gesicherte Kammer (12) gelagert ist, die die Spinnaggregate (R1, R2) und deren Antriebsmechanismus (M) aufnimmt und an das innere Ende des Hohlschaftes (23) anschließende Luftkanäle (39, 40) enthält, die so geführt sind, daß sie in den durch Wandabschnitte der Kammer (12) geführten Fasermaterial-Einspeisungsrohren (5, 6) der Spinnaggregate (R1, R2) einen in Richtung der Fasereinspeisung negativen, die Fasereinspeisung zu den Spinnaggregaten bewirkenden Druckgradienten aufzubauen vermögen.Apparatus according to claim 12 or 13, characterized in that the spindle rotor comprises a hollow shaft (23) which can be connected at its outer end to an air line and on which is mounted a substantially closed chamber (12) which is secured against rotation and which holds the spinning units (R1 , R2) and their drive mechanism (M) and contains air channels (39, 40) adjoining the inner end of the hollow shaft (23), which are guided in such a way that they pass through the fiber material feed pipes (12) through wall sections of the chamber (12). 5, 6) of the spinning units (R1, R2) are able to build up a negative pressure gradient in the direction of the fiber feed, which causes the fiber feed to the spinning units. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, daß die Kammer (12) einen abnehmbaren Deckel (12.3) aufweist.Device according to claim 14, characterized in that the chamber (12) has a removable cover (12.3). Vorrichtung nach Anspruch 12, gekennzeichnet durch ein die Kammer (12) umschließendes, stationäres, im wesentlichen geschlossenes Außengehäuse (34, 35), an dessen Oberseite koaxial zur Spindelhohlachse der Zentrierpunkt in Form einer Fadenaustrittsöffnung (37) und in dessen Seitenwand die Mündungsöffnungen der Fasermaterial-Zuführungsrohre (3, 4) angeordnet sind.Device according to claim 12, characterized by a chamber (12) enclosing stationary, essentially closed outer housing (34, 35), on the upper side of which the centering point in the form of a thread outlet opening (37) is arranged coaxially to the hollow spindle axis and in the side wall the orifices of the fiber material supply pipes (3, 4) are arranged. Vorrichtung nach Anspruch 16, dadurch gekennzeichnet, daß des Gehäuse (34) einen abnehmbaren Deckel (35) hat.Apparatus according to claim 16, characterized in that the housing (34) has a removable cover (35).
EP94112095A 1993-09-18 1994-08-03 Procedure and device for producing a twisted yarn Expired - Lifetime EP0644281B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4331801 1993-09-18
DE4331801A DE4331801C1 (en) 1993-09-18 1993-09-18 Method and device for producing a thread in an integrated spinning-twisting process
US08/310,695 US5479771A (en) 1993-09-18 1994-09-16 Method and device for manufacturing a twisted yarn

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EP0644281A2 true EP0644281A2 (en) 1995-03-22
EP0644281A3 EP0644281A3 (en) 1995-07-19
EP0644281B1 EP0644281B1 (en) 1997-05-21

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EP94112095A Expired - Lifetime EP0644281B1 (en) 1993-09-18 1994-08-03 Procedure and device for producing a twisted yarn

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US (1) US5479771A (en)
EP (1) EP0644281B1 (en)
JP (1) JPH07150426A (en)
CN (1) CN1109523A (en)
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DE (1) DE4331801C1 (en)

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JPH07150426A (en) 1995-06-13
EP0644281A3 (en) 1995-07-19
CN1109523A (en) 1995-10-04
EP0644281B1 (en) 1997-05-21
US5479771A (en) 1996-01-02
DE4331801C1 (en) 1995-02-23
CZ227994A3 (en) 1995-04-12
CZ287433B6 (en) 2000-11-15

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