EP2865792A1 - Drawing frame for an air spinning device - Google Patents

Drawing frame for an air spinning device Download PDF

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Publication number
EP2865792A1
EP2865792A1 EP20140003172 EP14003172A EP2865792A1 EP 2865792 A1 EP2865792 A1 EP 2865792A1 EP 20140003172 EP20140003172 EP 20140003172 EP 14003172 A EP14003172 A EP 14003172A EP 2865792 A1 EP2865792 A1 EP 2865792A1
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EP
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Prior art keywords
drafting
compressor
sliver
spinning
fibers
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Granted
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EP20140003172
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German (de)
French (fr)
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EP2865792B1 (en
Inventor
Thomas Gerhard Gries
Ansgar Paschen
Eric Schulte Südhoff
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Saurer Spinning Solutions GmbH and Co KG
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Saurer Germany GmbH and Co KG
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    • 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
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • 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
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides

Definitions

  • the invention relates to a drafting system for an air spinning device for warping and compacting a sliver, with a drafting upstream of the supercharger and the drafting subsequent air spinning device, wherein in the main drafting zone upstream drafting zone of the drafting a second compressor is arranged.
  • the yarn is solidified by true rotation of all the fibers about the longitudinal axis of the yarn.
  • the sliver is often compacted in the individual drafting fields to integrate protruding fibers or fiber ends at the edge of the sliver in the sliver and to ultimately obtain a smooth, closed and uniform yarn with high strength and parallel fibers. By compacting the sliver, a higher strength and a lower hairiness of the ring yarn are achieved.
  • the yarn-forming process largely depends on how well it is possible to wind binder fibers in sufficient numbers and as regularly as possible around the core fibers.
  • the emerging between the exit rollers of the drafting sliver passes through a nozzle block to the inlet opening of a hollow spinning spindle.
  • the free fiber ends are looped around the conically shaped spindle head of the spinning spindle by means of a circulating air flow and wrap themselves spirally around the screw during the drawing of the thread into the spindle mentioned core fibers.
  • the core fibers form together with the so-called Umwindefasern a new thread, which is subtracted, monitored by a yarn cleaner, optionally cleaned and wound up.
  • the warping of slivers in air spinning machines takes place at high overall distortions and high speeds.
  • the total distortion is, for example, in excess of 180.
  • air-spinning requires a drafting system for warping the sliver, which can handle a multiple of the fiber throughput of a conventional spinning process.
  • roller pairs In a drafting system usually several consecutive pairs of rollers are arranged. Each of these roller pairs consists of a lower roller and an upper pressure roller. The sliver is transported through the pairs of rollers to the air spinning unit. Since the peripheral speeds of the roller pairs increase in the direction of fiber travel, also creates the so-called default.
  • the drafting system designation shows how many pairs of rollers the drafting system consists of. So there are three-roll, four-roll or five-roll drafting. For example, in a four-roller drafting system, as seen in the direction of fiber travel, the first two pairs of rollers form the biasing field; the section thereafter the intermediate drafting field and the last two pairs of rollers the main drafting zone.
  • the drafting system arranged directly in front of the air-spinning unit is of particular importance.
  • the aim is to produce as uniform a sliver as possible in order to be able to spin a yarn that is as uniform as possible.
  • the DE 30 39 149 A1 discloses a high-distortion device in a spinning machine, with which stretching at high distortion ratio is feasible and in which a disturbance of the fiber assembly, such as the formation of flying fibers is prevented by air streams occurring and an abnormal expansion of the sliver width in the drafting zone.
  • the device has a clamping and pressing device which presses at the front end of the Riemchenstrecktechnikes running on both sides of the sliver stretch of the straps against each other and an offset nip at the front end of the Riemchenstreckwerks so that the action of air currents in the Near the nip of the front rollers arise, is prevented.
  • the guided fibers produce deformations of the surface of the apron, which in turn means that insufficient pressure can be applied to the fibers of the sliver.
  • a disadvantage of the device is that the use of a compressor in the main draft zone compacts the fibers in the arresting point and reduces the proportion of edge fibers. Free fiber ends, which are actually needed after the delay at the entrance of the sliver in the spinning spindle for winding the core fibers are instead introduced into the compact sliver. In addition, the friction of the fibers on the wall of the third compressor adversely affects, which in turn impairs the yarn uniformity.
  • the present invention seeks to further develop a drafting system for an air-spinning device so that the proportion of Umwindemaschinen can be improved.
  • a third compressor is additionally arranged in a main drafting zone according to claim 1, whose width of the passage cross section is larger, but not more than 10 mm larger than the width of the passage cross section of the second compressor.
  • the fibers of the fiber sliver are compacted in the default drafting zone upstream default field and then fed to the main drafting zone.
  • the fibers are adequately guided by means of the third compressor, without the fiber sliver being further compressed, so that the edge fibers are still present when the sliver enters the spinning spindle and consequently can wind around the core fibers as binder fibers, so that the yarn In air spinning, the required strength is maintained and the substance utilization of the fibers is improved.
  • the third compressor is selected depending on the second compressor and the desired proportion of the binder fibers in the finished spun yarn.
  • the passage cross-section indicates the width of the passage of the compressor, the height of the passage is technologically less important.
  • the passage cross-section of the third compressor is chosen to be substantially larger than the passage cross-section of the second compressor, but at most 10 mm larger, the sliver can run somewhat wider due to the larger passage cross-section and the proportion of edge fibers increases.
  • the fiber output during spinning also increases slightly, but the spun yarn has a high proportion of binder fibers and has a high strength.
  • the passage cross-section of the third compressor is at least 1 mm larger than the passage cross-section of the second compressor.
  • FIG. 1 schematically shows a front view of an air-spinning machine 1.
  • These textile machines have a plurality of in series juxtaposed work or spinning stations 2, which are positioned between the end arranged so-called end racks 15, 16.
  • each of the jobs 2 with a template material for example, a stored in a sliver can 3 sliver 4, equipped.
  • each of the jobs 2 has a drafting 5, an air-spinning device 6, a thread take-off device 7, a yarn cleaner 8 and a take-up device.
  • the associated thread-changing device 9 ensures that the yarn 10 produced in the air-spinning unit 6 from the sliver 4 is wound in intersecting layers onto a package 11.
  • This package reel or cross-wound bobbin 11 is, as usual, held in a coil frame, not shown, and is driven by a coil drive, also not shown rotates.
  • the jobs 2 of the textile machine 1 are preferably supplied by an automatically operating control unit 12, which, guided on rails 13, 14, along the work stations 2 is movable.
  • FIG. 2 shows a four-roller drafting 5 with downstream shipsspinnaggregat 6 and the passage of the sliver 4th
  • the withdrawn from the sliver can 3 sliver 4 is fed by a pre-compressor 17, which is upstream of the drafting unit 5, arranged by the feed roller pair upper and lower rollers 18, 19 and by means of the upper and lower rollers 20, 21; 23, 24; 28, 29 stretched.
  • the upper and lower rollers 23, 24 cooperate with the straps 25, 26 together.
  • the upper and lower rollers 28, 29 are arranged as output rollers.
  • the first two pairs of rollers form the Vorverzugsfeld 30; the section thereafter, the intermediate drafting zone 31, in which the second compressor 22 is arranged, and the last two pairs of rollers, the main drafting zone 32 with a third compressor 27, whose passage cross section is greater than the passage cross section of the second compressor 22nd
  • the sliver 4 is through the pairs of rollers 18, 19; 20, 21; 23, 24; 28, 29 transported to the air spinning unit 6, wherein the peripheral speeds of the roller pairs increase in the direction of fiber travel.
  • the sliver is warped 3 to 6 times.
  • the sliver 4 is compacted by means of the second compressor 22 and further warped.
  • the sliver 4 is guided by means of the third compressor 27, but not further compacted and moreover warped to its final fineness, which corresponds to the yarn count.
  • a nozzle device 42 On the input side of the spinning unit 6, a nozzle device 42 is arranged.
  • the nozzles 43, 44 are connected via the line 45 to a compressed air source 46.
  • the air flowing out of the nozzles 43, 44 generates a rotational flow, with which the stretched sliver 4 is acted upon. This is followed by a hollow spinning cone 47 connects.
  • the yarn 10 formed in the interaction of the nozzle device 42 and spinning cone 47 is withdrawn from the spinning unit 6 through the hollow spinning cone 47.
  • the air chamber 48 surrounding the spinning cone 47 is connected to a vacuum source 50 by means of a further line 49. Further details of the spinning process by means of such spinning devices are for example the DE 199 26 492 A1 removable.
  • FIG. 3 shows a three-roller drafting system.
  • the sliver 4 passes through the pre-compressor 17 and enters the drafting system 5.
  • the feed roller pair 33 forms, with the middle roller pair 34, the pre-drafting zone 36, in which the second compressor 22 is arranged.
  • the following main drafting zone 37 is formed by the two, viewed in the fiber direction, rear roller pairs, the belt acting with intermediate roller pair 34 and the output roller pair 35.
  • the third compressor 27 is arranged.
  • FIG. 4 is a five-roller drafting system shown. Since a drafting system has already been described in detail, only the differences to the already made statements will be discussed here.
  • the first bias field 56 is formed by the input roller pair 51 and the second roller pair 52. This is followed by a second pre-delay field 57, which is delimited by the second roller pair 52 and the third roller pair 53. Between the third roller pair 53 and the fourth roller pair 54 is the intermediate drafting zone 58 including the second compressor 22.
  • the last draft zone is followed by the main drafting zone 59, which is formed by the fourth roller pair 54 acting with aprons and the pair of output rollers 55. In this main drafting zone 59, the third compressor 27 is arranged.

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

Abstract

Die Erfindung betrifft ein Streckwerk für eine Luftspinnvorrichtung zum Verziehen und Verdichten eines Faserbandes, mit einem dem Streckwerk vorgelagerten Vorverdichter und einer dem Streckwerk nachfolgenden Luftspinnvorrichtung, wobei in dem dem Hauptverzugsfeld vorgelagerten Verzugsfeld des Streckwerks ein zweiter Verdichter angeordnet ist. Erfindungsgemäß ist zusätzlich in einem Hauptverzugsfeld ein dritter Verdichter angeordnet, dessen Breite des Durchtrittsquerschnittes größer, jedoch maximal 10 mm größer, ist als die Breite des Durchtrittsquerschnittes des zweiten Verdichters.The invention relates to a drafting system for an air spinning device for warping and compacting a sliver, with a drafting upstream of the supercharger and the drafting subsequent air spinning device, wherein in the main drafting zone upstream drafting zone of the drafting a second compressor is arranged. According to the invention, a third compressor is additionally arranged in a main drafting zone whose width of the passage cross-section is greater, but not more than 10 mm greater, than the width of the passage cross-section of the second compressor.

Description

Die Erfindung betrifft ein Streckwerk für eine Luftspinnvorrichtung zum Verziehen und Verdichten eines Faserbandes, mit einem dem Streckwerk vorgelagerten Vorverdichter und einer dem Streckwerk nachfolgenden Luftspinnvorrichtung, wobei in dem dem Hauptverzugsfeld vorgelagerten Verzugsfeld des Streckwerks ein zweiter Verdichter angeordnet ist.The invention relates to a drafting system for an air spinning device for warping and compacting a sliver, with a drafting upstream of the supercharger and the drafting subsequent air spinning device, wherein in the main drafting zone upstream drafting zone of the drafting a second compressor is arranged.

Die Entwicklung neuer Spinnverfahren ändert das Anforderungsprofil an Maschinenelemente, wie beispielsweise an Streckwerke, entscheidend. Jedes Spinnverfahren weist spezifische Anforderungen auf, die sich zum Teil signifikant von denen anderer Spinnverfahren unterscheiden.The development of new spinning processes is significantly changing the requirement profile for machine elements, such as drafting systems. Each spinning process has specific requirements, some of which differ significantly from those of other spinning processes.

Beim Ringspinnen, einem herkömmlichen Spinnverfahren, erfolgt die Verfestigung des Garnes durch echte Drehung aller Fasern um die Längsachse des Garnes. In dem vorgelagerten Streckwerk wird das Faserband oftmals in den einzelnen Verzugsfeldern verdichtet, um abstehende Fasern respektive Faserenden am Rande des Faserbandes in das Faserband zu integrieren und um letztendlich ein glattes, geschlossenes und gleichmäßiges Garn mit hoher Festigkeit und parallel liegenden Fasern zu erhalten. Durch das Verdichten des Faserbandes werden eine höhere Festigkeit und eine geringere Haarigkeit des Ringgarnes erzielt.In ring spinning, a traditional spinning process, the yarn is solidified by true rotation of all the fibers about the longitudinal axis of the yarn. In the upstream drafting system, the sliver is often compacted in the individual drafting fields to integrate protruding fibers or fiber ends at the edge of the sliver in the sliver and to ultimately obtain a smooth, closed and uniform yarn with high strength and parallel fibers. By compacting the sliver, a higher strength and a lower hairiness of the ring yarn are achieved.

Beim Luftspinnen hingegen hängt der Garnbildungsprozess maßgeblich davon ab, wie gut es gelingt, Umwindefasern in genügender Zahl und möglichst regelmäßig verteilt um die Kernfasern zu winden. Bei dem heute dominierenden Eindüsenspinnverfahren gelangt das zwischen den Ausgangswalzen des Streckwerks austretende Faserband durch einen Düsenblock zur Einlassöffnung einer hohlen Spinnspindel. Beim Eintreten des Faserbandes in die Spinnspindel werden die freien Faserenden mittels eines umlaufenden Luftstroms um den kegelig ausgebildeten Spindelkopf der Spinnspindel geschlungen und wickeln sich während des Einziehens des Fadens in die Spindel spiralförmig um die so genannten Kernfasern. Die Kernfasern bilden gemeinsam mit den so genannten Umwindefasern einen neuen Faden, der abgezogen, durch einen Garnreiniger überwacht, gegebenenfalls gereinigt und aufgewickelt wird.In the case of air-spinning, on the other hand, the yarn-forming process largely depends on how well it is possible to wind binder fibers in sufficient numbers and as regularly as possible around the core fibers. In today dominating jet spinning the emerging between the exit rollers of the drafting sliver passes through a nozzle block to the inlet opening of a hollow spinning spindle. Upon entry of the sliver into the spinning spindle, the free fiber ends are looped around the conically shaped spindle head of the spinning spindle by means of a circulating air flow and wrap themselves spirally around the screw during the drawing of the thread into the spindle mentioned core fibers. The core fibers form together with the so-called Umwindefasern a new thread, which is subtracted, monitored by a yarn cleaner, optionally cleaned and wound up.

Daher müssen einzelne, aus dem Faserband herausstehende Faserenden mittels einer Luftströmung abgespreizt werden, damit sich diese Umwindefasern um die ungedrehten Kernfasern winden können. Die durch die Umwindung auf den Garnkern ausgeübte Normalkraft bewirkt dabei die Garnverfestigung mittels Reibschluss und führt zu einem kompakten und rauhen Garn mit einer guten Faserorientierung. Der Anteil Umwindefasern eines so gesponnenen Garnes beträgt zwischen 10% und 30%.Therefore, individual, protruding from the sliver fiber ends must be spread by means of an air flow, so that these Umwindefasern can wind around the untwisted core fibers. The force exerted by the wrapping on the yarn core normal force causes the Garnverfestigung by means of friction and leads to a compact and rough yarn with a good fiber orientation. The proportion of binder fibers of such a spun yarn is between 10% and 30%.

Das Verziehen von Faserbändern in Luftspinnmaschinen erfolgt bei hohen Gesamtverzügen und hohen Geschwindigkeiten. Die Gesamtverzüge liegen zum Beispiel bei über 180. Dazu benötigt das Luftspinnen ein Streckwerk zum Verziehen des Faserbandes, das ein Vielfaches des Faserdurchsatzes eines herkömmlichen Spinnverfahrens bewältigen kann.The warping of slivers in air spinning machines takes place at high overall distortions and high speeds. The total distortion is, for example, in excess of 180. For this purpose, air-spinning requires a drafting system for warping the sliver, which can handle a multiple of the fiber throughput of a conventional spinning process.

In einem Streckwerk sind üblicherweise mehrere hintereinanderliegende Walzenpaare angeordnet. Jedes dieser Walzenpaare besteht aus einer Unterwalze und einer oberen Druckwalze. Das Faserband wird durch die Walzenpaare zum Luftspinnaggregat transportiert. Da die Umfangsgeschwindigkeiten der Walzenpaare in Faserlaufrichtung zunehmen, entsteht außerdem der so genannte Verzug.In a drafting system usually several consecutive pairs of rollers are arranged. Each of these roller pairs consists of a lower roller and an upper pressure roller. The sliver is transported through the pairs of rollers to the air spinning unit. Since the peripheral speeds of the roller pairs increase in the direction of fiber travel, also creates the so-called default.

Anhand der Streckwerksbezeichnung lässt sich erkennen, aus wie viel Walzenpaaren das Streckwerk besteht. So gibt es Dreiwalzen-, Vierwalzen- oder Fünfwalzen-Streckwerke. Bei einem Vierwalzen-Streckwerk zum Beispiel bilden, in Faserlaufrichtung betrachtet, die ersten beiden Walzenpaare das Vorverzugsfeld; der Abschnitt danach das Mittelverzugsfeld und die letzten beiden Walzenpaare das Hauptverzugsfeld.The drafting system designation shows how many pairs of rollers the drafting system consists of. So there are three-roll, four-roll or five-roll drafting. For example, in a four-roller drafting system, as seen in the direction of fiber travel, the first two pairs of rollers form the biasing field; the section thereafter the intermediate drafting field and the last two pairs of rollers the main drafting zone.

Um ein qualitativ hochwertiges, luftgesponnenes Garn herstellen zu können, kommt dem unmittelbar vor dem Luftspinnaggregat angeordneten Streckwerk eine besondere Bedeutung zu. Hier kommt es zu einer Verfeinerung und einem weiteren Parallelisieren der Fasern. Ziel ist es, ein möglichst gleichmäßiges Faserband herzustellen, um daraus ein möglichst gleichmäßiges Garn spinnen zu können.In order to be able to produce a high-quality, air-spun yarn, the drafting system arranged directly in front of the air-spinning unit is of particular importance. Here it comes to a refinement and a further parallelization of the Fibers. The aim is to produce as uniform a sliver as possible in order to be able to spin a yarn that is as uniform as possible.

In der DE 38 37 070 A1 werden eine Vorrichtung und ein Verfahren zum Herstellen eines gesponnenen Fadens mit einer pneumatischen Spinnmaschine beschrieben. Durch die in dieser Schrift offenbarte Vorrichtung wird beim Eintritt des Faserbandes in die Spinneinrichtung eine variabel einstellbare Druckluftströmung gegen das Faserband zur Einwirkung gebracht und dadurch ein Abspreizen von Faserendteilen des Faserbandes bewirkt, so dass einige der Fasern am Rande des Faserbandes um die Kernfasern herumgewunden werden. Auf diese Weise soll das Mengenverhältnis von Kernfasern zu Umwindefasern beeinflusst werden können und damit auch die Eigenschaften des auf diese Weise gesponnenen Fadens. Die Festigkeit eines solchen Fadens zum Beispiel verbessert sich mit steigender Anzahl der um den Außenumfang des Faserbandes herumgewundenen Umwindefasern.In the DE 38 37 070 A1 For example, an apparatus and method for producing a spun yarn with a pneumatic spinning machine will be described. By the device disclosed in this document, a variably adjustable compressed air flow is brought against the sliver at the entrance of the sliver in the spinning device and thereby causes a spreading of Faserendteilen the sliver, so that some of the fibers are wound around the core fibers at the edge of the sliver. In this way, the ratio of core fibers to binder fibers should be able to be influenced and thus also the properties of the yarn spun in this way. The strength of such a thread, for example, improves as the number of wraps around the outer circumference of the sliver increases.

Nachteilig an dieser Vorgehensweise ist, dass der Anteil Umwindefasern nicht definiert gesteuert werden kann. Die Führung der Fasern wird zudem vernachlässigt, so dass einzelne Fasern sich von der Garnachse weg bewegen können, was dazu führt, dass sie ungenügend in das Garn eingebunden oder gar direkt abgesaugt werden und nicht mehr im Garnverbund zum Verfestigen des Garnes zum Einsatz kommen können.The disadvantage of this approach is that the proportion Umwindefasern can not be controlled defined. The leadership of the fibers is also neglected, so that individual fibers can move away from the yarn axis, which means that they are insufficiently integrated into the yarn or even sucked directly and can no longer be used in the yarn composite for solidifying the yarn.

Die DE 30 39 149 A1 offenbart eine Hochverzugseinrichtung in einer Spinnmaschine, mit der ein Verstrecken bei hohem Verzugsverhältnis durchführbar ist und bei der eine Störung der Faseranordnung, wie die Bildung von fliegenden Fasern durch auftretende Luftströme sowie eine abnormale Ausdehnung der Faserbandbreite in der Verzugszone verhindert werden soll. Dazu verfügt die Vorrichtung über eine Klemm- und Andrückeinrichtung, die am vorderen Ende des Riemchenstreckwerkes die zu beiden Seiten des Faserbandes laufenden Strecken der Riemchen gegeneinander andrückt sowie über eine versetzte Klemmstelle am vorderen Ende des Riemchenstreckwerks, so dass die Einwirkung von Luftströmen, die in der Nähe der Klemmstelle der Vorderwalzen entstehen, verhindert wird.The DE 30 39 149 A1 discloses a high-distortion device in a spinning machine, with which stretching at high distortion ratio is feasible and in which a disturbance of the fiber assembly, such as the formation of flying fibers is prevented by air streams occurring and an abnormal expansion of the sliver width in the drafting zone. For this purpose, the device has a clamping and pressing device which presses at the front end of the Riemchenstreckwerkes running on both sides of the sliver stretch of the straps against each other and an offset nip at the front end of the Riemchenstreckwerks so that the action of air currents in the Near the nip of the front rollers arise, is prevented.

Ungünstig an dieser Lösung ist, dass auch hier der Anteil Umwindefasern nicht wirklich definiert beeinflussbar ist. Zwar werden die Fasern von den Riemchen geführt, dennoch breiten sich die Fasern auf den Riemchen teilweise weiter aus. Breitere Faserbändchen erhöhen die Garnhaarigkeit und führen zu einem erhöhten Faserabgang.Unfavorable in this solution is that here too the proportion of Umwindefasern not really Defined is influenced. Although the fibers are guided by the straps, the fibers on the straps nevertheless continue to expand in part. Wider fiber ribbons increase yarn hairiness and result in increased fiber output.

Des Weiteren erzeugen die geführten Fasern bei einer zu dünnen Außenschicht der Riemchen Verformungen der Riemchenoberfläche, wodurch dann wiederum nicht genügend Druck auf die Fasern des Faserbandes aufgebracht werden kann.Furthermore, when the outer layer of the aprons is too thin, the guided fibers produce deformations of the surface of the apron, which in turn means that insufficient pressure can be applied to the fibers of the sliver.

Durch die DE 41 32 919 A1 ist eine Vorrichtung zur Beeinflussung von Luftströmungen an Streckwerkswalzen von Spinnereimaschinen bekannt. Vor dem Streckwerk und in jedem Verzugsfeld ist ein Verdichter angeordnet. Damit ein Faserband nicht oder nur minimal den durch rotierende Walzen hervorgerufenen Luftströmungen ausgesetzt ist, wird an den Ausgangswalzen ein Verdichter mit einer teilweisen Ummantelung für die Walzen eingesetzt. In der Ummantelung sind zwischen dem Ummantelungsbeginn und der Verzugsfeldebene mindestens ein Luftkanal und gegebenenfalls noch ein Ausblaskanal angeordnet. Auf diese Weise wird die durch das Faserband in den Zwickelbereich der Walzen geförderte Luft abgeführt und eine Querströmung mit Faserabspreizungen verhindert.By the DE 41 32 919 A1 is a device for influencing air currents on drafting rollers of spinning machines known. Before the drafting system and in each default field, a compressor is arranged. So that a sliver is not or only minimally exposed to the air currents caused by rotating rollers, a compressor with a partial shell for the rollers is used on the output rollers. At least one air channel and possibly also a blow-out channel are arranged in the jacket between the beginning of the jacket and the plane of the delay zone. In this way, the conveyed through the sliver in the gusset portion of the rollers air is removed and prevents cross-flow with Faserabspreizungen.

Nachteilig an der Vorrichtung ist, dass durch den Einsatz eines Verdichters in der Hauptverzugszone die Fasern im Verzugspunkt kompaktiert werden und der Anteil der Randfasern verringert wird. Freie Faserenden, die eigentlich nach dem Verzug beim Eintritt des Faserbandes in die Spinnspindel zum Umwinden der Kernfasern benötigt werden, werden stattdessen in das kompakte Faserband eingebracht. Zudem wirkt sich die Reibung der Fasern an der Wand des dritten Verdichters nachteilig aus, was wiederum die Garngleichmäßigkeit beeinträchtigt.A disadvantage of the device is that the use of a compressor in the main draft zone compacts the fibers in the arresting point and reduces the proportion of edge fibers. Free fiber ends, which are actually needed after the delay at the entrance of the sliver in the spinning spindle for winding the core fibers are instead introduced into the compact sliver. In addition, the friction of the fibers on the wall of the third compressor adversely affects, which in turn impairs the yarn uniformity.

Zwar wird in der DE 41 32 919 A1 darauf hingewiesen, dass für bestimmte Anwendungen des Streckwerkes, wie zum Beispiel beim Falschdraht-Luftdüsenspinnen, der Verdichter ohne seitliche Begrenzung des Faserbandes ausgeführt sein kann, aber in diesem Falle wirkt sich nachteilig aus, dass nun die Fasern überhaupt nicht mehr geführt werden, was ein Breitlaufen des Faserbandes und damit einen erhöhten Faserabgang bedingt.True, in the DE 41 32 919 A1 pointed out that for certain applications of the drafting system, such as in the false-wire air jet spinning, the compressor can be performed without lateral limitation of the sliver, but in this case has a disadvantageous that now the fibers are no longer out what a Broad running of the sliver and thus an increased fiber output due.

Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, ein Streckwerk für eine Luftspinnvorrichtung so weiterzuentwickeln, dass der Anteil der Umwindefasern verbessert werden kann.Based on the aforementioned prior art, the present invention seeks to further develop a drafting system for an air-spinning device so that the proportion of Umwindefasern can be improved.

Diese Aufgabe wird erfindungsgemäß durch ein Streckwerk für eine Luftspinnvorrichtung gelöst, das die im Anspruch 1 kennzeichnenden Merkmale aufweist.This object is achieved by a drafting system for an air spinning device having the characterizing features of claim 1.

Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous embodiments of the invention are the subject of the dependent claims.

Zur Lösung der Aufgabe ist gemäß Anspruch 1 zusätzlich in einem Hauptverzugsfeld ein dritter Verdichter angeordnet, dessen Breite des Durchtrittsquerschnittes größer, jedoch maximal 10 mm größer, ist als die Breite des Durchtrittsquerschnittes des zweiten Verdichters.To solve the problem, a third compressor is additionally arranged in a main drafting zone according to claim 1, whose width of the passage cross section is larger, but not more than 10 mm larger than the width of the passage cross section of the second compressor.

Aufgrund dieser Anordnung und Ausbildung der Verdichter werden die Fasern des Faserbandes in dem dem Hauptverzugsfeld vorgelagerten Verzugsfeld kompaktiert und dann dem Hauptverzugsfeld zugeführt.Due to this arrangement and design of the compressors, the fibers of the fiber sliver are compacted in the default drafting zone upstream default field and then fed to the main drafting zone.

Dann werden im Hauptverzugsfeld die Fasern mittels des dritten Verdichters ausreichend geführt, ohne dass das Faserband weiter verdichtet wird, so dass die Randfasern beim Eintritt des Faserbandes in die Spinnspindel noch vorhanden sind und sich folglich als Umwindefasern um die Kernfasern herumwinden können, so dass das Garn beim Luftspinnen die erforderliche Festigkeit erhält und die Substanzausnutzung der Fasern verbessert wird.Then, in the main drafting zone, the fibers are adequately guided by means of the third compressor, without the fiber sliver being further compressed, so that the edge fibers are still present when the sliver enters the spinning spindle and consequently can wind around the core fibers as binder fibers, so that the yarn In air spinning, the required strength is maintained and the substance utilization of the fibers is improved.

Mittels der erfindungsgemäßen Anordnung ist zwischen dem Verdichten des Faserbandes einerseits und dem Führen der Fasern andererseits ein ausgewogenes Verhältnis gefunden worden. Je nachdem, wie viel der Durchtrittsquerschnitt des dritten Verdichters größer ist als der Durchtrittquerschnitt des zweiten Verdichters, kann der Anteil der Randfasern im Faserband und somit der Anteil der Umwindefasern des luftgesponnenen Garnes beeinflusst werden. Des Weiteren wurde in Versuchen festgestellt, dass die erfindungsgemäße Anordnung der Verdichter in den Verzugsfeldern die dort auftretenden Luftströmungen positiv beeinflusst.By means of the arrangement according to the invention a balanced relationship has been found between the compression of the sliver on the one hand and the guiding of the fibers on the other hand. Depending on how much the passage cross-section of the third compressor is greater than the passage cross-section of the second compressor, the proportion of edge fibers in the sliver and thus the proportion of Umwindefasern the air-spun yarn can be influenced. Furthermore, it was found in experiments that the inventive arrangement of the compressor in the drafting zones positively influences the air currents occurring there.

Welche Maße der Durchtrittsquerschnitte des Vorverdichters und des zweiten Verdichters gewählt werden, hängt von der Höhe des Verzuges und von der herzustellenden Garnfeinheit ab. Der dritte Verdichter wird abhängig von dem zweiten Verdichter und dem erwünschten Anteil der Umwindefasern im fertig gesponnenen Garn ausgewählt. Dabei gibt der Durchtrittsquerschnitt vor allem die Breite des Durchlasses des Verdichters an, die Höhe des Durchlasses ist technologisch weniger wichtig.Which dimensions of the passage cross sections of the supercharger and the second compressor are selected depends on the amount of distortion and on the yarn count to be produced. The third compressor is selected depending on the second compressor and the desired proportion of the binder fibers in the finished spun yarn. In particular, the passage cross-section indicates the width of the passage of the compressor, the height of the passage is technologically less important.

Wird der Durchtrittsquerschnitt des dritten Verdichters wesentlich größer als der Durchtrittsquerschnitt des zweiten Verdichters gewählt, maximal aber 10 mm größer, kann das Faserband aufgrund des größeren Durchtrittsquerschnitts etwas breiter laufen und der Anteil der Randfasern erhöht sich. Der Faserabgang beim Spinnen erhöht sich zwar auch etwas, aber das gesponnene Garn weist einen hohen Anteil Umwindefasern auf und verfügt über eine hohe Festigkeit.If the passage cross-section of the third compressor is chosen to be substantially larger than the passage cross-section of the second compressor, but at most 10 mm larger, the sliver can run somewhat wider due to the larger passage cross-section and the proportion of edge fibers increases. The fiber output during spinning also increases slightly, but the spun yarn has a high proportion of binder fibers and has a high strength.

Es hat sich herausgestellt, dass ein mehr als 10 mm größerer Durchtrittsquerschnitt des dritten Verdichters im Verhältnis zum Durchtrittsquerschnitt des zweiten Verdichters nicht mehr in der Lage ist, das Faserband ausreichend zu führen.It has been found that a more than 10 mm larger passage cross-section of the third compressor in relation to the passage cross section of the second compressor is no longer able to sufficiently guide the sliver.

Wie im Anspruch 2 beschrieben, ist in bevorzugter Ausbildung vorgesehen, dass der Durchtrittsquerschnitt des dritten Verdichters mindestens 1 mm größer ist als der Durchtrittsquerschnitt des zweiten Verdichters.As described in claim 2, it is provided in a preferred embodiment that the passage cross-section of the third compressor is at least 1 mm larger than the passage cross-section of the second compressor.

Mit einem solch minimal größeren Durchtrittsquerschnitt des dritten Verdichters ist gewährleistet, dass zum einen das Faserband im Hauptverzugsfeld nicht weiter verdichtet wird, während die Fasern jedoch ausreichend geführt werden. Randfasern, deren Faserende aus dem Faserband abstehen, werden in einem geringen Maße zugelassen und können sich beim Eintritt des Faserbandes in die Spinnspindel um die Kernfasern herumwinden. Auf diese Weise tritt nur ein minimaler Faserabgang während des Spinnens auf und es entsteht ein luftgesponnenes Garn mit einem geringeren, aber ausreichenden Anteil Umwindefasern.With such a minimally larger passage cross section of the third compressor, it is ensured that, on the one hand, the sliver in the main drafting zone is not further compressed, while the fibers are, however, sufficiently guided. Edge fibers whose fiber ends protrude from the sliver are admitted to a small extent and can wind around the core fibers when the sliver enters the spinning spindle. In this way, only a minimal fiber output occurs during spinning and there is an air-spun yarn with a smaller, but sufficient proportion Umwindefasern.

Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment shown in the drawings.

Es zeigen:

Figur 1
in Vorderansicht eine mit Luftspinnvorrichtungen ausgestattete Textilmaschine;
Figur 2
in Seitenansicht ein erfindungsgemäßes Vierwalzen-Streckwerk mit zugehöriger Spinnvorrichtung.
Figur 3
in Seitenansicht ein erfindungsgemäßes Dreiwalzen-Streckwerk
Figur 4
in Seitenansicht ein erfindungsgemäßes Fünfwalzen-Streckwerk
Show it:
FIG. 1
in front view of a textile machine equipped with air spinning devices;
FIG. 2
in side view, an inventive four-roller drafting system with associated spinning device.
FIG. 3
in side view of an inventive three-roller drafting system
FIG. 4
in side view, an inventive five-roller drafting system

Die Figur 1 zeigt schematisch in Vorderansicht eine Luftspinnmaschine 1. Diese Textilmaschinen weisen eine Vielzahl von in Reihe nebeneinander angeordneten Arbeits- oder Spinnstellen 2 auf, die zwischen endseitig angeordneten so genannten Endgestellen 15, 16 positioniert sind.The FIG. 1 schematically shows a front view of an air-spinning machine 1. These textile machines have a plurality of in series juxtaposed work or spinning stations 2, which are positioned between the end arranged so-called end racks 15, 16.

Wie in Figur 1 weiter angedeutet, ist jede der Arbeitsstellen 2 mit einem Vorlagematerial, beispielsweise ein in einer Spinnkanne 3 abgelegtes Faserband 4, ausgestattet.As in FIG. 1 further indicated, each of the jobs 2 with a template material, for example, a stored in a sliver can 3 sliver 4, equipped.

Außerdem verfügt jede der Arbeitsstellen 2 über ein Streckwerk 5, eine Luftspinnvorrichtung 6, eine Fadenabzugseinrichtung 7, einen Garnreiniger 8 sowie über eine Aufwickeleinrichtung.In addition, each of the jobs 2 has a drafting 5, an air-spinning device 6, a thread take-off device 7, a yarn cleaner 8 and a take-up device.

Die zugehörige Fadenchangiereinrichtung 9 sorgt dafür, dass das in dem Luftspinnaggregat 6 aus dem Faserband 4 gefertigte Garn 10 in sich kreuzenden Lagen auf eine Auflaufspule 11 gewickelt wird.The associated thread-changing device 9 ensures that the yarn 10 produced in the air-spinning unit 6 from the sliver 4 is wound in intersecting layers onto a package 11.

Diese Auflaufspule respektive Kreuzspule 11 ist, wie üblich, in einem nicht dargestellten Spulenrahmen gehalten und wird durch einen ebenfalls nicht dargestellten Spulenantrieb rotiert.This package reel or cross-wound bobbin 11 is, as usual, held in a coil frame, not shown, and is driven by a coil drive, also not shown rotates.

Wie in Figur 1 weiter angedeutet, werden die Arbeitsstellen 2 der Textilmaschine 1 vorzugsweise durch ein selbsttätig arbeitendes Bedienaggregat 12 versorgt, das, auf Schienen 13, 14 geführt, entlang der Arbeitsstellen 2 verfahrbar ist.As in FIG. 1 further indicated, the jobs 2 of the textile machine 1 are preferably supplied by an automatically operating control unit 12, which, guided on rails 13, 14, along the work stations 2 is movable.

Figur 2 zeigt ein Vierwalzen-Streckwerk 5 mit nachgeordnetem Luftspinnaggregat 6 und dem Durchlauf des Faserbandes 4. FIG. 2 shows a four-roller drafting 5 with downstream Luftspinnaggregat 6 and the passage of the sliver 4th

Das aus der Spinnkanne 3 abgezogene Faserband 4 wird durch einen Vorverdichter 17, der dem Streckwerk 5 vorgelagert ist, von den als Einzugswalzenpaar angeordneten Oberund Unterwalzen 18, 19 eingezogen und mittels der Ober- und Unterwalzen 20, 21; 23, 24; 28, 29 verstreckt. Die Ober- und Unterwalzen 23, 24 wirken mit den Riemchen 25, 26 zusammen. Die Ober- und Unterwalzen 28, 29 sind als Ausgangswalzen angeordnet.
In Faserlaufrichtung betrachtet, bilden die ersten beiden Walzenpaare das Vorverzugsfeld 30; der Abschnitt danach das Mittelverzugsfeld 31, in dem der zweite Verdichter 22 angeordnet ist, und die letzten beiden Walzenpaare das Hauptverzugsfeld 32 mit einem dritten Verdichter 27, dessen Durchtrittsquerschnitt größer ist als der Durchtrittsquerschnitt des zweiten Verdichters 22.The withdrawn from the sliver can 3 sliver 4 is fed by a pre-compressor 17, which is upstream of the drafting unit 5, arranged by the feed roller pair upper and lower rollers 18, 19 and by means of the upper and lower rollers 20, 21; 23, 24; 28, 29 stretched. The upper and lower rollers 23, 24 cooperate with the straps 25, 26 together. The upper and lower rollers 28, 29 are arranged as output rollers.
Viewed in the fiber running direction, the first two pairs of rollers form the Vorverzugsfeld 30; the section thereafter, the intermediate drafting zone 31, in which the second compressor 22 is arranged, and the last two pairs of rollers, the main drafting zone 32 with a third compressor 27, whose passage cross section is greater than the passage cross section of the second compressor 22nd

Das Faserband 4 wird durch die Walzenpaare 18, 19; 20, 21; 23, 24; 28, 29 zum Luftspinnaggregat 6 transportiert, wobei die Umfangsgeschwindigkeiten der Walzenpaare in Faserlaufrichtung zunehmen. In dem Vorverzugsfeld 30 wird das Faserband 3 bis 6 fach verzogen. In dem Mittelverzugsfeld 31 wird das Faserband 4 mittels des zweiten Verdichters 22 kompaktiert und weiter verzogen. In dem Hauptverzugsfeld 32 wird das Faserband 4 mittels des dritten Verdichters 27 geführt, aber nicht weiter kompaktiert und zudem auf seine Endfeinheit, die der Garnfeinheit entspricht, verzogen.The sliver 4 is through the pairs of rollers 18, 19; 20, 21; 23, 24; 28, 29 transported to the air spinning unit 6, wherein the peripheral speeds of the roller pairs increase in the direction of fiber travel. In the Vorverzugsfeld 30, the sliver is warped 3 to 6 times. In the intermediate drafting zone 31, the sliver 4 is compacted by means of the second compressor 22 and further warped. In the main drafting zone 32, the sliver 4 is guided by means of the third compressor 27, but not further compacted and moreover warped to its final fineness, which corresponds to the yarn count.

Eingangsseitig des Spinnaggregats 6 ist eine Düseneinrichtung 42 angeordnet.
Die Düsen 43, 44 sind über die Leitung 45 mit einer Druckluftquelle 46 verbunden. Die aus den Düsen 43, 44 ausströmende Luft erzeugt eine Rotationsströmung, mit der das verstreckte Faserband 4 beaufschlagt wird. Daran schließt sich ein hohler Spinnkonus 47 an.On the input side of the spinning unit 6, a nozzle device 42 is arranged.
The nozzles 43, 44 are connected via the line 45 to a compressed air source 46. The air flowing out of the nozzles 43, 44 generates a rotational flow, with which the stretched sliver 4 is acted upon. This is followed by a hollow spinning cone 47 connects.

Das im Zusammenwirken von Düseneinrichtung 42 und Spinnkonus 47 gebildete Garn 10 wird durch den hohlen Spinnkonus 47 aus dem Spinnaggregat 6 abgezogen. Die den Spinnkonus 47 umgebende Luftkammer 48 ist mittels einer weiteren Leitung 49 mit einer Unterdruckquelle 50 verbunden. Weitere Einzelheiten zum Spinnvorgang mittels derartiger Spinnvorrichtungen sind beispielsweise der DE 199 26 492 A1 entnehmbar.The yarn 10 formed in the interaction of the nozzle device 42 and spinning cone 47 is withdrawn from the spinning unit 6 through the hollow spinning cone 47. The air chamber 48 surrounding the spinning cone 47 is connected to a vacuum source 50 by means of a further line 49. Further details of the spinning process by means of such spinning devices are for example the DE 199 26 492 A1 removable.

Figur 3 zeigt ein Dreiwalzen-Streckwerk. Das Faserband 4 passiert den Vorverdichter 17 und gelangt in das Streckwerk 5. Das Einzugswalzenpaar 33 bildet mit dem mittleren Walzenpaar 34 das Vorverzugsfeld 36, in dem der zweite Verdichter 22 angeordnet ist. Das darauffolgende Hauptverzugsfeld 37 wird durch die beiden, in Faserlaufrichtung betrachtet, hinteren Walzenpaare, dem mit Riemchen wirkenden mittleren Walzenpaar 34 und dem Ausgangswalzenpaar 35 gebildet. In dem Hauptverzugsfeld 37 ist der dritte Verdichter 27 angeordnet. FIG. 3 shows a three-roller drafting system. The sliver 4 passes through the pre-compressor 17 and enters the drafting system 5. The feed roller pair 33 forms, with the middle roller pair 34, the pre-drafting zone 36, in which the second compressor 22 is arranged. The following main drafting zone 37 is formed by the two, viewed in the fiber direction, rear roller pairs, the belt acting with intermediate roller pair 34 and the output roller pair 35. In the main drafting field 37, the third compressor 27 is arranged.

In Figur 4 ist ein Fünfwalzen-Streckwerk dargestellt. Da ein Streckwerk bereits detailliert beschrieben wurde, wird an dieser Stelle lediglich auf die Unterschiede zu den bereits getätigten Ausführungen eingegangen. Das erste Vorverzugsfeld 56 wird durch das Eingangswalzenpaar 51 und das zweite Walzenpaar 52 gebildet. Darauf folgt ein zweites Vorverzugsfeld 57, das durch das zweite Walzenpaar 52 und das dritte Walzenpaar 53 begrenzt wird. Zwischen dem dritten Walzenpaar 53 und dem vierten Walzenpaar 54 befindet sich das Mittelverzugsfeld 58 inklusive des zweiten Verdichters 22. Als letzte Verzugszone schließt sich das Hauptverzugsfeld 59 an, das durch das vierte, mit Riemchen wirkende Walzenpaar 54 sowie das Ausgangswalzenpaar 55 gebildet wird. In diesem Hauptverzugsfeld 59 ist der dritte Verdichter 27 angeordnet.In FIG. 4 is a five-roller drafting system shown. Since a drafting system has already been described in detail, only the differences to the already made statements will be discussed here. The first bias field 56 is formed by the input roller pair 51 and the second roller pair 52. This is followed by a second pre-delay field 57, which is delimited by the second roller pair 52 and the third roller pair 53. Between the third roller pair 53 and the fourth roller pair 54 is the intermediate drafting zone 58 including the second compressor 22. The last draft zone is followed by the main drafting zone 59, which is formed by the fourth roller pair 54 acting with aprons and the pair of output rollers 55. In this main drafting zone 59, the third compressor 27 is arranged.

Claims (2)

Streckwerk (5) für eine Luftspinnvorrichtung (6) zum Verziehen und Verdichten eines Faserbandes (4), mit einem dem Streckwerk (5) vorgelagerten Vorverdichter (17) und einer dem Streckwerk (5) nachfolgenden Luftspinnvorrichtung (6), wobei in dem dem Hauptverzugsfeld vorgelagerten Verzugsfeld des Streckwerks (5) ein zweiter Verdichter (22) angeordnet ist,
dadurch gekennzeichnet,
dass zusätzlich in einem Hauptverzugsfeld (32) ein dritter Verdichter (27) angeordnet ist, dessen Breite des Durchtrittsquerschnittes größer, jedoch maximal 10 mm größer, ist als die Breite des Durchtrittsquerschnittes des zweiten Verdichters (22).Drawframe (5) for an air-spinning device (6) for warping and compacting a sliver (4) with a pre-compressor (17) upstream of the drafting device (5) and an air-jet spinning device (6) following the drafting device (5), wherein in the main drafting zone upstream drafting zone of the drafting system (5), a second compressor (22) is arranged,
characterized,
that in addition to a main drafting zone (32), a third compressor (27) is arranged, whose width of the passage cross section is larger, but not more than 10 mm larger than the width of the passage cross section of the second compressor (22). Streckwerk (5) für eine Luftspinnvorrichtung (6) nach Anspruch 1, dadurch gekennzeichnet, dass der Durchtrittsquerschnitt des dritten Verdichters (32) mindestens 1 mm größer ist als der Durchtrittsquerschnitt des zweiten Verdichters (31).Drawframe (5) for an air spinning device (6) according to claim 1, characterized in that the passage cross section of the third compressor (32) is at least 1 mm larger than the passage cross section of the second compressor (31).
EP14003172.5A 2013-10-23 2014-09-13 Drawing frame for an air spinning device Active EP2865792B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3604646A1 (en) 2018-08-03 2020-02-05 Saurer Spinning Solutions GmbH & Co. KG Drawing frame unit and drawing frame for a spinning machine

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017122318A1 (en) 2017-09-26 2019-03-28 Saurer Spinning Solutions Gmbh & Co. Kg compressor means

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039149A1 (en) 1979-10-16 1981-05-07 Murata Kikai K.K., Kyoto HIGH DISTANCE DEVICE IN A SPINNING MACHINE
DE3837070A1 (en) 1987-10-29 1989-05-18 Murata Machinery Ltd Apparatus and process for the production of a spun thread
DE4132919A1 (en) 1991-10-04 1993-04-08 Univ Chemnitz Tech Spinning machine drafting zone - has condenser to approach the output roller pair to counteract unwanted airstream
DE19926492A1 (en) 1998-10-02 2000-04-06 Schlafhorst & Co W Spinning device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3727391A (en) * 1971-11-04 1973-04-17 Du Pont Apparatus for drafting and twisting fibers
DD282930A5 (en) * 1989-05-03 1990-09-26 Karl Marx Stadt Tech Hochschul RANGE OF SPINNING MACHINES
DE4032940A1 (en) * 1990-10-17 1992-04-23 Fritz Stahlecker Twin yarn - is produced pneumatically from one roving and spun by false-twist airjet devices
DE4323472C2 (en) * 1993-07-14 1997-08-07 Inst F Textil Und Verfahrenste Double apron drafting system
JP2012107363A (en) * 2010-11-18 2012-06-07 Murata Mach Ltd Draft roller, draft machine and spinning machine
CN102704074B (en) * 2012-06-26 2014-10-15 东华大学 Lower support type composite spinning structure for spirally spreading filament, method for using the same and application thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039149A1 (en) 1979-10-16 1981-05-07 Murata Kikai K.K., Kyoto HIGH DISTANCE DEVICE IN A SPINNING MACHINE
DE3837070A1 (en) 1987-10-29 1989-05-18 Murata Machinery Ltd Apparatus and process for the production of a spun thread
DE4132919A1 (en) 1991-10-04 1993-04-08 Univ Chemnitz Tech Spinning machine drafting zone - has condenser to approach the output roller pair to counteract unwanted airstream
DE19926492A1 (en) 1998-10-02 2000-04-06 Schlafhorst & Co W Spinning device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3604646A1 (en) 2018-08-03 2020-02-05 Saurer Spinning Solutions GmbH & Co. KG Drawing frame unit and drawing frame for a spinning machine
JP2020020086A (en) * 2018-08-03 2020-02-06 ザウラー スピニング ソリューションズ ゲー・エム・ベー・ハー ウント コー． カー・ゲーＳａｕｒｅｒ Ｓｐｉｎｎｉｎｇ Ｓｏｌｕｔｉｏｎｓ ＧｍｂＨ ＆ Ｃｏ． ＫＧ Draft device unit for spinning machine and draft machine
DE102018006100A1 (en) * 2018-08-03 2020-02-06 Saurer Spinning Solutions Gmbh & Co. Kg Drafting unit and drafting system for a spinning machine
US11198955B2 (en) 2018-08-03 2021-12-14 Saurer Intelligent Technology AG Drafting system unit and drafting system for a spinning machine

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CN104562317A (en) 2015-04-29

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