EP1431432B1 - Device for producing a spun yarn - Google Patents

Device for producing a spun yarn Download PDF

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Publication number
EP1431432B1
EP1431432B1 EP03024832A EP03024832A EP1431432B1 EP 1431432 B1 EP1431432 B1 EP 1431432B1 EP 03024832 A EP03024832 A EP 03024832A EP 03024832 A EP03024832 A EP 03024832A EP 1431432 B1 EP1431432 B1 EP 1431432B1
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EP
European Patent Office
Prior art keywords
inlet opening
arrangement according
staple fibre
deflecting
channel
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Expired - Lifetime
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EP03024832A
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German (de)
French (fr)
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EP1431432A1 (en
Inventor
Gerd Stahlecker
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP1431432A1 publication Critical patent/EP1431432A1/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
    • D01H4/02—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 a fluid, e.g. air vortex
    • 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
    • D01H4/38—Channels for feeding fibres to the yarn forming region

Definitions

  • the invention relates to a device for producing a spun yarn from a staple fiber strand, comprising a feed channel having an outlet opening for feeding the staple fiber strand, with a stationary spindle-like component following the outlet opening with a thread withdrawal channel having an inlet opening, with compressed air nozzles located between outlet opening and inlet opening connected vortex chamber for generating a vortex flow around the inlet opening, with a substantially annularly surrounding the spindle-like component exhaust air duct and arranged in the feed channel, the staple fiber strand to form a swirl barrier deflecting fiber guide surfaces.
  • a device of this type is known from EP 0 854 214 B1 prior art.
  • a staple fiber bundle coming from a drafting device is passed through a feed channel to the inlet port of a yarn withdrawal channel, first leading the front ends of the fibers held in the staple fiber strand into the yarn withdrawal channel, while trailing free fiber ends are splayed and caught by the swirling flow and around the already located in the inlet opening of the thread withdrawal channel, ie integrated front ends are turned around, whereby a thread largely true rotation is generated.
  • helical fiber guide surfaces are provided as a swirl barrier, wherein the helix has the same direction of rotation as the turbulence and extends over a circumferential angle of 90 ° to 120 °.
  • the helix is formed by an insert in a sleeve and fills about half the cross section of the sleeve, whereby the remaining part of the cross-section forms the feed channel.
  • the fibers of the staple fiber bandage rest continuously on this spiral in the feed channel.
  • the invention is based on the object to intensify the effect of the swirl barrier even more.
  • the object is achieved in that the feed channel is meandering and the fiber guide surfaces are formed as Umlenkkanten, between which the staple fiber strand is free of support.
  • the last deflecting edge in the running direction of the staple fiber composite is arranged eccentrically to the inlet opening of the thread withdrawal channel. This increases the effect of the last deflection edge, in particular if it is arranged in the immediate vicinity of the inlet opening of the thread withdrawal channel.
  • At least one deflection is additionally provided with a profiling.
  • the effect of the swirl barrier is even more intense.
  • the profiling may be at least one arranged in the direction of the staple fiber composite wedge-shaped groove, whereby the individual fibers of the staple fiber composite separated and clamped in a certain way.
  • a plurality of very small notch-like grooves may be provided for the same purpose.
  • FIG. 1 shows a device with which a loose staple fiber strand 2 supplied through a feed channel 1 in the direction of travel A is given a rotation in a swirl chamber 3, so that a spun yarn 4 is produced, which is drawn off in the withdrawal direction B by a yarn withdrawal channel 5.
  • a fluid device generates in the vortex chamber 3 by blowing compressed air through tangentially into the vortex chamber 3 opening compressed air nozzles 6 a vortex flow. The escaping air is discharged via the exhaust duct 7, wherein this has an annular cross-section around a spindle-shaped stationary component 8 around, in which the thread withdrawal channel 5 is arranged.
  • a swirl barrier 10 is provided, which will be described in detail later.
  • the fibers to be spun from a delivery roller pair 11, 12 are held on the one hand in the staple fiber structure 2 and are thus guided from the outlet opening 9 of the feed channel 1 substantially without rotation into the yarn withdrawal channel 5.
  • the fibers are exposed in the region between the feed channel 1 and the thread withdrawal channel 5 to the action of the vortex flow, by which they or at least their end portions are radially expelled from the inlet opening 13 of the thread withdrawal channel 5.
  • the threads 4 produced by the method described hereby show a core of fibers or fiber zones extending essentially in the thread longitudinal direction without significant rotation and an outer region in which the fibers or fiber regions are rotated around the core.
  • this thread construction comes about by the fact that leading ends of fibers, in particular those whose trailing regions are still held upstream of the feed channel 1, pass substantially directly into the yarn withdrawal channel 5, but that trailing fiber regions, especially if they are in the entrance region the feed channel 1 are no longer held, pulled by vortex formation from the staple fiber strand 2 and then rotated about the resulting thread 4.
  • fibers are involved at the same time both in the resulting thread 4, whereby they are pulled through the yarn withdrawal channel 5, as well as the vortex flow, which accelerates centrifugally, ie from the inlet opening 13 of the thread withdrawal channel 5, and withdraws into the exhaust duct 7 ,
  • the drawn by the turbulent flow from the staple fiber strand 2 fiber regions form a opening into the inlet opening 13 of the yarn withdrawal channel 5 fiber vortex, the longer portions spiral around the outside of the spindle-shaped member 8 and in this spiral against the force of the flow in the exhaust duct 7 against the inlet port 13th the thread withdrawal channel 5 are pulled.
  • fiber guide surfaces are provided in the feed channel 1, which deflect the staple fiber strand 2 to form the swirl barrier 10.
  • the feed channel 1 runs meandering, and the fiber guide surfaces are additionally formed as deflection surfaces 14,15,16, between which the staple fiber strand 2 is free of support.
  • this staple fiber strand 2 is indicated only by dash-dotted lines, and it can be seen that it rests only on the deflection edges 14,15 and 16 on the fiber guide surfaces.
  • the advantage over the prior art is that the swirl barrier 10 is very intensive and at the same time increases in its effect from the first deflection edge 14 to the last deflection edge 16.
  • the last deflection edge 16 extending in the running direction A of the staple fiber structure 2 runs eccentrically to the inlet opening 13 of the thread withdrawal channel 5 and lies in the immediate vicinity of this inlet opening 13. Overall, three deflection edges 14,15,16 are provided.
  • At least one deflecting edge 15 can additionally have a profiling 17, whereby the effect of the swirl barrier 10 is reinforced again.
  • the profiling 17 is part of the deflecting edge 15 containing insert 18 in a support sleeve 19, see also Figure 1, wherein the insert 18, a second insert 20 is assigned to form the swirl barrier 10, which in turn includes the deflection edges 14 and 16.
  • the profiling 17 is formed as a wedge-shaped groove 21, while according to Figure 3, the profiling 17 consists of a plurality of notch-like grooves 22.
  • the fibers belonging to the staple fiber structure 2 are better separated and optionally pinched, which enhances the effect of the swirl barrier 10.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

A spinning assembly converts staple slivers into spun thread. The assembly has a sliver feed aperture with an outlet to a stationary spindle having an inlet and thread discharge passage. The spinning action is effected in a vortex chamber with an air feed. The feed passage (1) esp. follows a meandering route defined by diversion edges (14, 15, 16) between which the slivers are unsupported. In the sliver (2) direction of travel (A) the last diversion edge (16) is eccentric with respect to the thread discharge passage (5) inlet (13).

Description

Die Erfindung betrifft eine Vorrichtung zum Herstellen eines gesponnenen Fadens aus einem Stapelfaserverband, mit einem eine Auslassöffnung aufweisenden Zuführkanal zum Zuführen des Stapelfaserverbandes, mit einem der Auslassöffnung nachfolgenden stationären spindelartigen Bauteil mit einem eine Einlassöffnung aufweisenden Fadenabzugskanal, mit einer zwischen Auslassöffnung und Einlassöffnung befindlichen, an Druckluftdüsen angeschlossenen Wirbelkammer zum Erzeugen einer Wirbelströmung um die Einlassöffnung, mit einem das spindelartige Bauteil im Wesentlichen ringförmig umgebenden Abluftkanal sowie mit im Zuführkanal angeordneten, den Stapelfaserverband zum Bilden einer Drallsperre umlenkenden Faserführungsflächen.The invention relates to a device for producing a spun yarn from a staple fiber strand, comprising a feed channel having an outlet opening for feeding the staple fiber strand, with a stationary spindle-like component following the outlet opening with a thread withdrawal channel having an inlet opening, with compressed air nozzles located between outlet opening and inlet opening connected vortex chamber for generating a vortex flow around the inlet opening, with a substantially annularly surrounding the spindle-like component exhaust air duct and arranged in the feed channel, the staple fiber strand to form a swirl barrier deflecting fiber guide surfaces.

Eine Vorrichtung dieser Art ist durch die EP 0 854 214 B1 Stand der Technik. Bei dieser Vorrichtung wird ein von einem Streckwerk kommender Stapelfaserverband durch einen Zuführkanal hindurch zur Einlassöffnung eines Fadenabzugskanals geführt, wobei zunächst die vorderen Enden der im Stapelfaserverband gehaltenen Fasern in den Fadenabzugskanal geführt werden, während hintere freie Faserenden abgespreizt und von der Wirbelströmung erfasst und um die sich bereits in der Einlassöffnung des Fadenabzugskanals befindlichen, also eingebundenen vorderen Enden herumgedreht werden, wodurch ein Faden weitgehend echter Drehung erzeugt wird.A device of this type is known from EP 0 854 214 B1 prior art. In this apparatus, a staple fiber bundle coming from a drafting device is passed through a feed channel to the inlet port of a yarn withdrawal channel, first leading the front ends of the fibers held in the staple fiber strand into the yarn withdrawal channel, while trailing free fiber ends are splayed and caught by the swirling flow and around the already located in the inlet opening of the thread withdrawal channel, ie integrated front ends are turned around, whereby a thread largely true rotation is generated.

Um den Bereich der Einlassöffnung entsteht auf Grund der Wirbelströmung eine regelrechte "Sonne" von umkreisenden Fasern, die zum Teil auch um das spindelartige Bauteil gewunden werden.Due to the turbulent flow around the area of the inlet opening, a veritable "sun" of orbiting fibers is created, some of which are wound around the spindle-like component.

Bei der bekannten Vorrichtung sind als Drallsperre wendelförmige Faserführungsflächen vorgesehen, wobei die Wendel die gleiche Drehrichtung wie die Wirbelströmung aufweist und sich über einen Umfangswinkel von 90° bis 120° erstreckt. Die Wendel wird durch einen Einsatz in einer Hülse gebildet und füllt etwa den halben Querschnitt der Hülse aus, wodurch der freibleibende Teil des Querschnittes den Zuführkanal bildet. Die Fasern des Stapelfaserverbandes liegen im Zuführkanal durchgehend an dieser Wendel an.In the known device helical fiber guide surfaces are provided as a swirl barrier, wherein the helix has the same direction of rotation as the turbulence and extends over a circumferential angle of 90 ° to 120 °. The helix is formed by an insert in a sleeve and fills about half the cross section of the sleeve, whereby the remaining part of the cross-section forms the feed channel. The fibers of the staple fiber bandage rest continuously on this spiral in the feed channel.

Der Erfindung liegt die Aufgabe zu Grunde, die Wirkung der Drallsperre noch mehr zu intensivieren.The invention is based on the object to intensify the effect of the swirl barrier even more.

Die Aufgabe wird dadurch gelöst, dass der Zuführkanal mäanderförmig verläuft und die Faserführungsflächen als Umlenkkanten ausgebildet sind, zwischen denen der Stapelfaserverband unterstützungsfrei ist.The object is achieved in that the feed channel is meandering and the fiber guide surfaces are formed as Umlenkkanten, between which the staple fiber strand is free of support.

Durch den mäanderförmigen Verlauf des Zuführkanals und durch die Umlenkkanten, deren Anzahl im Prinzip frei wählbar ist, wird insgesamt eine sehr wirksame Drallsperre erreicht, die sich von Null allmählich bis zu einem sehr intensiven Drallstopp ausweitet. Dadurch, dass der Stapelfaserverband zwischen den Umlenkflächen unterstützungsfrei bleibt, können sich in diesen Bereichen Fasern lockern und abspreizen, so dass sie später in der Wirbelkammer als den Kernverband umkreisende Fasern zur Verfügung stehen.Due to the meandering course of the feed channel and the deflecting edges, the number of which is freely selectable in principle, a very effective twist lock is achieved overall, which gradually expands from zero to a very intense spin stop. The fact that the staple fiber bond between the deflection remains support-free, fibers can loosen and spread in these areas, so that they are later in the vortex chamber as the core association orbiting fibers available.

Vorteilhaft ist vorgesehen, dass die in Laufrichtung des Stapelfaserverbandes letzte Umlenkkante exzentrisch zur Einlassöffnung des Fadenabzugskanals angeordnet ist. Dies erhöht die Wirkung der letzten Umlenkkante, insbesondere wenn diese in unmittelbarer Nähe der Einlassöffnung des Fadenabzugskanals angeordnet ist.It is advantageously provided that the last deflecting edge in the running direction of the staple fiber composite is arranged eccentrically to the inlet opening of the thread withdrawal channel. This increases the effect of the last deflection edge, in particular if it is arranged in the immediate vicinity of the inlet opening of the thread withdrawal channel.

Um die Drallsperre möglichst kompakt zu haften, sind zweckmäßig nur drei Umlenkkanten vorgesehen.In order to adhere the swirl barrier as compact as possible, only three deflection edges are expediently provided.

In Ausgestaltung der Erfindung kann vorgesehen sein, dass wenigstens eine Umlenkkante zusätzlich mit einer Profilierung versehen ist. Dadurch lässt sich die Drallsperre in ihrer Wirkung noch mehr intensivieren. Bei der Profilierung kann es sich um wenigstens eine in Laufrichtung des Stapelfaserverbandes angeordnete keilförmige Rinne handeln, wodurch die einzelnen Fasern des Stapelfaserverbandes separiert und in gewisser Weise geklemmt werden. Alternativ kann auch eine Mehrzahl von sehr kleinen kerbenartigen Rinnen zum gleichen Zwecke vorgesehen sein.In an embodiment of the invention can be provided that at least one deflection is additionally provided with a profiling. As a result, the effect of the swirl barrier is even more intense. In the profiling may be at least one arranged in the direction of the staple fiber composite wedge-shaped groove, whereby the individual fibers of the staple fiber composite separated and clamped in a certain way. Alternatively, a plurality of very small notch-like grooves may be provided for the same purpose.

Weitere Vorteile und Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung einiger Ausführungsbeispiele.Further advantages and features of the invention will become apparent from the following description of some embodiments.

Es zeigen:

  • Figur 1 in etwa zehnfacher Vergrößerung einen Längsschnitt durch eine erfindungsgemäße Vorrichtung,
  • Figur 2 in noch stärkerer Vergrößerung einen Schnitt längs der Schnittfläche II-II der Figur 1,
  • Figur 3 einen Schnitt ähnlich Figur 2 bei einer anderen Ausgestaltung der Erfindung,
  • Figur 4 eine vergrößerte Teilansicht der Figur 1 im Bereich der Drallsperre.
Show it:
  • FIG. 1 shows an approximately tenfold enlargement of a longitudinal section through a device according to the invention,
  • FIG. 2 shows, in an even greater enlargement, a section along the sectional surface II-II of FIG. 1,
  • FIG. 3 shows a section similar to FIG. 2 in another embodiment of the invention,
  • FIG. 4 shows an enlarged partial view of FIG. 1 in the area of the swirl barrier.

Die Figur 1 zeigt eine Vorrichtung, mit der einem durch einen Zuführkanal 1 in Laufrichtung A zugeführten, losen Stapelfaserverband 2 in einer Wirbelkammer 3 eine Drehung erteilt wird, so dass ein gesponnener Faden 4 entsteht, der durch einen Fadenabzugskanal 5 in Abzugsrichtung B abgezogen wird. Eine Fluideinrichtung erzeugt in der Wirbelkammer 3 durch Einblasen von Druckluft durch tangential in die Wirbelkammer 3 mündende Druckluftdüsen 6 eine Wirbelströmung. Die austretende Luft wird über Abluftkanal 7 abgeführt, wobei dieser einen ringförmigen Querschnitt um ein spindelförmiges stationäres Bauteil 8 herum aufweist, in welchem der Fadenabzugskanal 5 angeordnet ist.FIG. 1 shows a device with which a loose staple fiber strand 2 supplied through a feed channel 1 in the direction of travel A is given a rotation in a swirl chamber 3, so that a spun yarn 4 is produced, which is drawn off in the withdrawal direction B by a yarn withdrawal channel 5. A fluid device generates in the vortex chamber 3 by blowing compressed air through tangentially into the vortex chamber 3 opening compressed air nozzles 6 a vortex flow. The escaping air is discharged via the exhaust duct 7, wherein this has an annular cross-section around a spindle-shaped stationary component 8 around, in which the thread withdrawal channel 5 is arranged.

Im Bereich der Auslassöffnung 9 des Zuführkanals 1 ist eine Drallsperre 10 vorgesehen, die später noch im Einzelnen beschrieben wird.In the region of the outlet opening 9 of the feed channel 1, a swirl barrier 10 is provided, which will be described in detail later.

In der Vorrichtung werden die von einem Lieferwalzenpaar 11,12 kommenden, zu verspinnenden Fasern einerseits im Stapelfaserverband 2 gehalten und so von der Auslassöffnung 9 des Zuführkanals 1 im Wesentlichen ohne Drehungserteilung in den Fadenabzugskanal 5 geführt. Andererseits sind die Fasern aber im Bereich zwischen Zuführkanal 1 und Fadenabzugskanal 5 der Wirkung der Wirbelströmung ausgesetzt, durch die sie oder mindestens ihre Endbereiche von der Einlassöffnung 13 des Fadenabzugskanals 5 radial weggetrieben werden. Die mit dem beschriebenen Verfahren hergestellten Fäden 4 zeigen dadurch einen Kern von im Wesentlichen in Fadenlängsrichtung verlaufenden Fasern oder Faserbereichen ohne wesentliche Drehung und einen äußeren Bereich, in welchem die Fasern oder Faserbereiche um den Kern herum gedreht sind.In the apparatus, the fibers to be spun from a delivery roller pair 11, 12 are held on the one hand in the staple fiber structure 2 and are thus guided from the outlet opening 9 of the feed channel 1 substantially without rotation into the yarn withdrawal channel 5. On the other hand, however, the fibers are exposed in the region between the feed channel 1 and the thread withdrawal channel 5 to the action of the vortex flow, by which they or at least their end portions are radially expelled from the inlet opening 13 of the thread withdrawal channel 5. The threads 4 produced by the method described hereby show a core of fibers or fiber zones extending essentially in the thread longitudinal direction without significant rotation and an outer region in which the fibers or fiber regions are rotated around the core.

Dieser Fadenaufbau kommt nach einer modellhaften Erklärung dadurch zu Stande, dass vorlaufende Enden von Fasern, insbesondere solche, deren nachlaufende Bereiche noch stromaufwärts vom Zuführkanal 1 gehalten werden, im Wesentlichen direkt in den Fadenabzugskanal 5 gelangen, dass aber nachlaufende Faserbereiche, insbesondere wenn sie im Eingangsbereich des Zuführkanals 1 nicht mehr gehalten werden, durch Wirbelbildung aus dem Stapelfaserverband 2 gezogen und dann um den entstehenden Faden 4 gedreht werden. Jedenfalls sind Fasern zu einem gleichen Zeitpunkt sowohl im entstehenden Faden 4 eingebunden, wodurch sie durch den Fadenabzugskanal 5 gezogen werden, als auch der Wirbelströmung ausgesetzt, die sie zentrifugal, also von der Einlassöffnung 13 des Fadenabzugskanals 5 hinweg, beschleunigt und in den Abluftkanal 7 abzieht.According to a model explanation, this thread construction comes about by the fact that leading ends of fibers, in particular those whose trailing regions are still held upstream of the feed channel 1, pass substantially directly into the yarn withdrawal channel 5, but that trailing fiber regions, especially if they are in the entrance region the feed channel 1 are no longer held, pulled by vortex formation from the staple fiber strand 2 and then rotated about the resulting thread 4. In any case, fibers are involved at the same time both in the resulting thread 4, whereby they are pulled through the yarn withdrawal channel 5, as well as the vortex flow, which accelerates centrifugally, ie from the inlet opening 13 of the thread withdrawal channel 5, and withdraws into the exhaust duct 7 ,

Die durch die Wirbelströmung aus dem Stapelfaserverband 2 gezogenen Faserbereiche bilden einen in die Einlassöffnung 13 des Fadenabzugskanals 5 mündenden Faserwirbel, dessen längere Anteile sich spiralartig außen um das spindelförmige Bauteil 8 winden und in dieser Spirale entgegen der Kraft der Strömung im Abluftkanal 7 gegen die Einlassöffnung 13 des Fadenabzugskanals 5 gezogen werden.The drawn by the turbulent flow from the staple fiber strand 2 fiber regions form a opening into the inlet opening 13 of the yarn withdrawal channel 5 fiber vortex, the longer portions spiral around the outside of the spindle-shaped member 8 and in this spiral against the force of the flow in the exhaust duct 7 against the inlet port 13th the thread withdrawal channel 5 are pulled.

Wie aus Figur 1 und insbesondere der vergrößerten Darstellung in Figur 4 ersichtlich, sind im Zuführkanal 1 Faserführungsflächen vorgesehen, welche den Stapelfaserverband 2 zum Bilden der Drallsperre 10 umlenken. Der Zuführkanal 1 verläuft dabei mäanderförmig, und die Faserführungs-flächen sind zusätzlich als Umlenkflächen 14,15,16 ausgebildet, zwischen denen der Stapel-faserverband 2 unterstützungsfrei ist. In Figur 4 ist dieser Stapelfaserverband 2 nur strichpunktiert angedeutet, und man erkennt, dass er lediglich an den Umlenkkanten 14,15 und 16 an den Faserführungsflächen anliegt.As can be seen from FIG. 1 and in particular the enlarged illustration in FIG. 4, fiber guide surfaces are provided in the feed channel 1, which deflect the staple fiber strand 2 to form the swirl barrier 10. The feed channel 1 runs meandering, and the fiber guide surfaces are additionally formed as deflection surfaces 14,15,16, between which the staple fiber strand 2 is free of support. In Figure 4, this staple fiber strand 2 is indicated only by dash-dotted lines, and it can be seen that it rests only on the deflection edges 14,15 and 16 on the fiber guide surfaces.

Mit dieser Ausgestaltung ergibt sich gegenüber dem Stand der Technik der Vorteil, dass die Drallsperre 10 sehr intensiv ist und zugleich von der ersten Umlenkkante 14 bis zur letzten Umlenkkante 16 in ihrer Wirkung zunimmt.With this configuration, the advantage over the prior art is that the swirl barrier 10 is very intensive and at the same time increases in its effect from the first deflection edge 14 to the last deflection edge 16.

Wie insbesondere aus der Figur 1 hervorgeht, verläuft die in Laufrichtung A des Stapelfaserverbandes 2 letzte Umlenkkante 16 exzentrisch zur Einlassöffnung 13 des Fadenabzugskanals 5 und liegt in unmittelbarer Nähe dieser Einlassöffnung 13. Insgesamt sind drei Umlenkkanten 14,15,16 vorgesehen.As can be seen in particular from FIG. 1, the last deflection edge 16 extending in the running direction A of the staple fiber structure 2 runs eccentrically to the inlet opening 13 of the thread withdrawal channel 5 and lies in the immediate vicinity of this inlet opening 13. Overall, three deflection edges 14,15,16 are provided.

Wie aus den Figuren 2 und 3 ersichtlich ist, kann wenigstens eine Umlenkkante 15 zusätzlich eine Profilierung 17 aufweisen, wodurch die Wirkung der Drallsperre 10 nochmals verstärkt wird. Die Profilierung 17 ist Bestandteil eines die Umlenkkante 15 enthaltenden Einsatzes 18 in einer Traghülse 19, siehe auch Figur 1, wobei zum Bilden der Drallsperre 10 dem Einsatz 18 ein zweiter Einsatz 20 zugeordnet ist, der seinerseits die Umlenkkanten 14 und 16 enthält.As can be seen from FIGS. 2 and 3, at least one deflecting edge 15 can additionally have a profiling 17, whereby the effect of the swirl barrier 10 is reinforced again. The profiling 17 is part of the deflecting edge 15 containing insert 18 in a support sleeve 19, see also Figure 1, wherein the insert 18, a second insert 20 is assigned to form the swirl barrier 10, which in turn includes the deflection edges 14 and 16.

Gemäß Figur 2 ist die Profilierung 17 als keilförmige Rinne 21 ausgebildet, während gemäß Figur 3 die Profilierung 17 aus einer Mehrzahl von kerbenartigen Rinnen 22 besteht. Dadurch lässt sich erreichen, dass die dem Stapelfaserverband 2 angehörigen Fasern besser separiert und gegebenenfalls gleichsam eingeklemmt werden, was die Wirkung der Drallsperre 10 verstärkt.According to Figure 2, the profiling 17 is formed as a wedge-shaped groove 21, while according to Figure 3, the profiling 17 consists of a plurality of notch-like grooves 22. As a result, it is possible to achieve that the fibers belonging to the staple fiber structure 2 are better separated and optionally pinched, which enhances the effect of the swirl barrier 10.

Claims (7)

  1. An arrangement for producing a spun thread from a staple fibre veil, comprising a feed channel having an outlet opening for feeding the staple fibre veil, also comprising a stationary, spindle-shaped component arranged downstream of the outlet opening having a yarn withdrawal channel comprising an inlet opening, also comprising a vortex chamber connected to compressed-air nozzles and located between the outlet opening and the inlet opening for generating an eddy current around the inlet opening, also comprising an air evacuation duct surrounding, essentially in a ring form, the spindle-shaped component, and comprising fibre guiding surfaces deflecting the staple fibre veil for forming a twist block, wherein the feed channel (1) extends in a meandering manner and wherein the guiding surfaces are designed as deflecting edges (14,1516), between which the staple fibre veil (2) is without any support.
  2. An arrangement according to claim 1, wherein the last deflecting edge (16) in the direction of motion (A) of the staple fibre veil (2) is arranged eccentrically to the inlet opening (13) of the yarn withdrawal channel (5).
  3. An arrangement according to claim 2 wherein the last deflecting edge (16) is arranged in direct proximity of the inlet opening (13).
  4. An arrangement according to any one of the claims 1 to 3, wherein three deflecting edges (14,15,16) are provided overall.
  5. An arrangement according to any one of the claims 1 to 4, wherein at least one deflecting edge (15) is provided additionally with a profile (17).
  6. An arrangement according to claim 5, wherein the profile (17) comprises at least one wedge-shaped groove (21) in the direction of motion (A) of the staple fibre veil (2).
  7. An arrangement according to claim 6, wherein a plurality of notch-like grooves (22) are provided.
EP03024832A 2002-12-17 2003-10-31 Device for producing a spun yarn Expired - Lifetime EP1431432B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10261011A DE10261011A1 (en) 2002-12-17 2002-12-17 Device for producing a spun thread
DE10261011 2002-12-17

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EP1431432A1 EP1431432A1 (en) 2004-06-23
EP1431432B1 true EP1431432B1 (en) 2007-01-03

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Application Number Title Priority Date Filing Date
EP03024832A Expired - Lifetime EP1431432B1 (en) 2002-12-17 2003-10-31 Device for producing a spun yarn

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US (1) US7080502B2 (en)
EP (1) EP1431432B1 (en)
JP (1) JP2004197292A (en)
CN (1) CN100451192C (en)
AT (1) ATE350522T1 (en)
DE (2) DE10261011A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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CN102465363A (en) * 2010-11-05 2012-05-23 村田机械株式会社 Spinning machine

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* Cited by examiner, † Cited by third party
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CN1878895B (en) * 2003-11-11 2010-09-01 里特机械公司 Spinning post with fibre guidance element
DE102006018249A1 (en) * 2006-04-13 2007-10-18 Wilhelm Stahlecker Gmbh Spindle-shaped component for an air jet spinning device with an injection channel
JP5162975B2 (en) * 2007-06-21 2013-03-13 村田機械株式会社 Spinning equipment
DE102011054302A1 (en) * 2011-10-07 2013-04-11 Maschinenfabrik Rieter Ag Garnbildungselement for a spinning station of an air spinning machine with a twist stop element
DE102012101001A1 (en) * 2012-02-08 2013-08-08 Maschinenfabrik Rieter Ag Garnbildungselement for a spinning station of an air-spinning machine with a helical guide and method for producing a yarn
BG111170A (en) * 2012-03-19 2013-09-30 "Д-А-ДИНКО БАХОВ" ЕТ"D-A-Dinko Bahov" Et Method and apparatus for spinning yarn with air vortex
CH706923A1 (en) * 2012-09-07 2014-03-14 Rieter Ag Maschf Spinning unit of an air spinning machine.
CH708620A1 (en) * 2013-09-30 2015-03-31 Rieter Ag Maschf Fiber guide element for a spinning nozzle of an air spinning machine and thus equipped spinning station.
CN103526363B (en) * 2013-10-30 2016-01-20 吴江市科时达纺织有限公司 Bent-pipe false twister
EP3859061A1 (en) * 2020-01-30 2021-08-04 Saurer Intelligent Technology AG Fibre bundle receiving device
CN116516532B (en) * 2023-06-29 2023-09-15 克州润华纺织科技有限公司 Production equipment and production process of core spun yarn

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4837117A (en) * 1986-12-16 1989-06-06 E. I. Du Pont De Nemours And Company Composites of stretch broken aligned fibers of carbon and glass reinforced resin
DE4036119C2 (en) * 1989-11-14 1994-07-07 Murata Machinery Ltd Device for producing spun threads
JPH0674530B2 (en) * 1991-07-30 1994-09-21 村田機械株式会社 Spinning equipment
JPH10204731A (en) * 1997-01-16 1998-08-04 Murata Mach Ltd Spinning apparatus
EP0990719B1 (en) * 1998-10-02 2003-05-28 W. SCHLAFHORST AG & CO. Spinning device
DE10201577A1 (en) * 2002-01-17 2003-07-31 Schlafhorst & Co W Spinning device for producing a spun thread by means of a circulating air stream

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102465363A (en) * 2010-11-05 2012-05-23 村田机械株式会社 Spinning machine
CN102465363B (en) * 2010-11-05 2016-06-01 村田机械株式会社 Spinning machinery

Also Published As

Publication number Publication date
JP2004197292A (en) 2004-07-15
US7080502B2 (en) 2006-07-25
DE50306178D1 (en) 2007-02-15
CN100451192C (en) 2009-01-14
EP1431432A1 (en) 2004-06-23
US20050204720A1 (en) 2005-09-22
DE10261011A1 (en) 2004-07-08
ATE350522T1 (en) 2007-01-15
CN1508307A (en) 2004-06-30

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