EP1682702B1 - Spinning post with fibre guidance element - Google Patents

Spinning post with fibre guidance element Download PDF

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Publication number
EP1682702B1
EP1682702B1 EP04738064A EP04738064A EP1682702B1 EP 1682702 B1 EP1682702 B1 EP 1682702B1 EP 04738064 A EP04738064 A EP 04738064A EP 04738064 A EP04738064 A EP 04738064A EP 1682702 B1 EP1682702 B1 EP 1682702B1
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EP
European Patent Office
Prior art keywords
fiber
guidance element
distance
angle
guiding surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04738064A
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German (de)
French (fr)
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EP1682702A1 (en
Inventor
Herbert Stalder
Kurt Ziegler
Peter Artzt
Heinz Müller
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP1682702A1 publication Critical patent/EP1682702A1/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 spinning station with a fiber guide element according to the preamble of patent claim 1.
  • the present invention relates to the field of air spinning machines.
  • Air-jet spinning machines have a multiplicity of spinning stations.
  • a yarn is spun from a fed longitudinal fiber structure.
  • the fiber longitudinal structure is first refined, that is, the amount of fiber per unit length is reduced by delay.
  • the refined fiber structure is spun in the spinning station by twisting to a yarn.
  • the spinning station on a fiber guide element with a fiber guide surface, which leads the fiber structure in a vortex chamber, where by the known vortex air spinning method, a yarn is produced in a spindle.
  • FIG. 1 a fiber guide element designed as a sleeve 3 is shown with a fiber guiding surface 5 arranged in the interior. From the outlet roller pair 2 of the upstream drafting a fiber strand 1 is passed through the sleeve 3.
  • EP 1 335 050 A2 is proposed to a sleeve in which two mutually inclined fiber guide surfaces are arranged, thereby forming a deflection point in the interior.
  • the deflection point formed as an edge increases the proportion of free fiber ends on the surface of the fiber structure in which they lift off. These free fiber ends are detected by the vortex flow in front of the spindle.
  • Increasing the proportion of free fibers also increases the proportion of wraparound fibers of the yarn and thereby improves the quality of a yarn spun in this way.
  • this deflection point improves the yarn quality, it carries nothing in improving the flow conditions when entering the fiber structure 1 in the sleeve 3.
  • When entering the fiber structure 1 in the fiber guide element 3 is in particular also the risk that the parallel to the feed direction 34 fibers are stowed on necessarily existing edges.
  • the present invention has for its object to provide a spinning station with a fiber guide element and a fiber guide element, in which the flow conditions are improved during the transition from the drafting in the Faser Operationsselemen, to subsequently obtain better conditions for the spinning of the fiber structure.
  • the feeding direction of the fiber strand is inclined to the direction of the fiber guide surface at a deflection point, for example at an entry edge, at an inclination angle and that the deflection point is arranged inside or at the edge of the fiber guide element;
  • the deflection point for example an entry edge, can be at the edge of the fiber guide element, ie at the end face of the fiber guide element (see end face 33 from the following FIG. 2 ), as well as be arranged by resetting or suitable positioning in the interior of the fiber guide element.
  • the invention leaves open how the outlet of the fiber guide element can be designed. This can be done according to the teaching of the document 1,335,050 A2. However, this embodiment of the outlet is not necessarily predetermined by the invention.
  • FIG. 1 To clarify the problem and the solution provided by the present invention, a spinning unit 6 of an air-spinning machine with a pair of outlet rollers 2 and a fiber guide element 3 designed as a sleeve is shown in a perspective view.
  • a fiber structure 1 is guided by the fiber guide element 3, which is then spun in the spindle 7, not shown, to form a yarn by means of twist distribution.
  • the task of the fiber guiding element 3 is to supply the fiber structure 1 optimally to the subsequent vortex chamber 36, so that there a yarn can be formed by means of an air flow.
  • fiber guide element 3 and sleeve 3 are used synonymously.
  • FIG. 2 a fiber guide element 3 according to the invention is shown.
  • the fiber structure 1 is transported in the direction 34 to the fiber guiding element 3.
  • a deflection at the leading edge 32 is provided.
  • the entry edge 32 is formed by an inclination between the feed direction 34 and the fiber guide surface 5 arranged in the sleeve 3 and arranged in the interior of said sleeve 3.
  • an exit edge 17 is provided in order to obtain an additional spreading of the edge fibers.
  • a twist stop 38 is provided at the end of the trailing edge 17 .
  • the present invention leaves open, as the outlet and the subsequent introduction into the inlet mouth 9 of the spindle 7 must be configured.
  • an air inlet opening 37 is arranged in front of the inlet mouth 9 is in the vortex chamber 36.
  • the indicated values are applicable both individually for a spinning station 6 or for a fiber guiding element 3 and also in combination.
  • the invention leaves open how the fiber guide element 3 is structurally to design, for example, can be made at the leading edge 32 a rounding.

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

Description

Die Erfindung bezieht sich auf eine Spinnstelle mit einem Faserführungselement gemäss dem Oberbegriff des Patentanspruchs 1.The invention relates to a spinning station with a fiber guide element according to the preamble of patent claim 1.

Die vorliegende Erfindung betrifft das Gebiet der Luftspinnmaschinen. Luftspinnmaschinen weisen eine Vielzahl von Spinnstellen auf. In jeder Spinnstelle wird ein Garn aus einem zugeführten Faserlängsgebilde gesponnen. Dabei wird das Faserlängsgebilde zuerst verfeinert, das heisst, die Fasermenge pro Längeneinheit wird durch Verzug verkleinert. Dann wird der verfeinerte Faserverband in der Spinnstelle durch Drallerteilung zu einem Garn versponnen. Dazu weist die Spinnstelle ein Faserführungselement mit einer Faserführungsfläche auf, welche den Faserverband in eine Wirbelkammer führt, wo durch das bekannte Vortex-Luftspinnverfahren ein Garn in einer Spindel hergestellt wird.The present invention relates to the field of air spinning machines. Air-jet spinning machines have a multiplicity of spinning stations. In each spinning station, a yarn is spun from a fed longitudinal fiber structure. The fiber longitudinal structure is first refined, that is, the amount of fiber per unit length is reduced by delay. Then the refined fiber structure is spun in the spinning station by twisting to a yarn. For this purpose, the spinning station on a fiber guide element with a fiber guide surface, which leads the fiber structure in a vortex chamber, where by the known vortex air spinning method, a yarn is produced in a spindle.

Bedingt durch die sehr hohen Geschwindigkeiten des Faserverbandes beim Übergang vom Streckwerk in die Spindel gilt es, den Eintritt in das der Spindel vorgelagerte Faser führungselementes optimal zu gestalten. Hohe Streckwerkgeschwindigkeiten führen zu starken Luftströmungen im Bereich der Auslaufwalzen-Klemmlinie. Diese Luftströmungen können zu einem Abreissen des Faserverbandes führen. In Figur 1 ist ein als Hülse 3 ausgestaltetes Faserführungselement mit einer im Inneren angeordneten Faserführungsfläche 5 gezeigt. Vom Auslaufwalzenpaar 2 des vorgelagerten Streckwerkes wird ein Faserverband 1 durch die Hülse 3 geführt.Due to the very high speeds of the fiber structure in the transition from drafting to the spindle, it is important to make the entry in the spindle upstream fiber guide element optimal. High drafting speeds lead to strong air currents in the area of the discharge roller clamping line. These air currents can lead to a tearing of the fiber structure. In FIG. 1 a fiber guide element designed as a sleeve 3 is shown with a fiber guiding surface 5 arranged in the interior. From the outlet roller pair 2 of the upstream drafting a fiber strand 1 is passed through the sleeve 3.

In EP 1 335 050 A2 ist dazu eine Hülse vorgeschlagen, in der zwei gegenseitig geneigte Faserführungsflächen angeordnet sind und dadurch eine Umlenkstelle im Innern bilden. Durch die als Kante gebildete Umlenkstelle wird der Anteil der freien Faserenden auf der Oberfläche des Faserverbandes erhöht, in dem diese abheben. Diese freien Faserenden werden vor der Spindel von der Wirbelströmung erfasst. Durch die Erhöhung des Anteil der freien Fasern erhöht sich auch der Anteil der Umwindefasern des Garns und dadurch kann die Qualität eines auf diese Weise gesponnenen Garns verbessert werden. Diese Umlenkstelle verbessert zwar die Garnqualität, sie trägt jedoch nichts bei zur Verbesserung der Strömungsbedingungen beim Eintritt des Faserverbandes 1 in die Hülse 3. Beim Eintritt des Faserverbandes 1 in das Faserführungselement 3 besteht insbesondere auch die Gefahr, dass die parallel zur Zuführrichtung 34 liegenden Fasern an notwendigerweise vorhandenen Kanten gestaut werden.In EP 1 335 050 A2 is proposed to a sleeve in which two mutually inclined fiber guide surfaces are arranged, thereby forming a deflection point in the interior. The deflection point formed as an edge increases the proportion of free fiber ends on the surface of the fiber structure in which they lift off. These free fiber ends are detected by the vortex flow in front of the spindle. Increasing the proportion of free fibers also increases the proportion of wraparound fibers of the yarn and thereby improves the quality of a yarn spun in this way. Although this deflection point improves the yarn quality, it carries nothing in improving the flow conditions when entering the fiber structure 1 in the sleeve 3. When entering the fiber structure 1 in the fiber guide element 3 is in particular also the risk that the parallel to the feed direction 34 fibers are stowed on necessarily existing edges.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Spinnstelle mit einem Faserführungselement und ein Faserführungselement anzugeben, bei denen die Strömungsbedingungen auch beim Übergang vom Streckwerk in das Faserführungselemen verbessert werden, um anschliessend bessere Bedingungen für das Verspinnen des Faserverbandes zu erlangen.The present invention has for its object to provide a spinning station with a fiber guide element and a fiber guide element, in which the flow conditions are improved during the transition from the drafting in the Faserführungselemen, to subsequently obtain better conditions for the spinning of the fiber structure.

Diese Aufgabe wird die im Patentanspruch 1 angegebene Spinnstelle und durch das im Patentanspruch 8 angegebene Faserführungselement gelöst.This object is achieved by the spinning station specified in claim 1 and by the fiber guide element specified in claim 8.

Durch die erfindungsgemässe Lösung, wonach
die Zuführrichtung des Faserverbandes zur Richtung der Faserführungsfläche an einer Umlenkstelle, zum Beispiel an einer Eintrittskante, um einen Neigungswinkel geneigt ist und dass die Umlenkstelle im Inneren oder am Rand des Faserführungselementes angeordnet ist;
ergeben sich wesentlich verbesserte Strömungsbedingung und im besonderen kann dadurch eine Schlinger- oder Pendelbewegung des Faserverbandes wirksam eingedämmt werden. Die Umlenkstelle, z.B. eine Eintrittskante, kann am Rand des Faserführungselementes, d.h. an der Stirnfläche des Faserführungselementes (siehe Stirnfläche 33 aus der im folgenden beschriebenen Figur 2), wie auch durch Zurücksetzung bzw. geeignete Positionierung im Innern des Faserführungselementes angeordnet sein.By the inventive solution, according to which
the feeding direction of the fiber strand is inclined to the direction of the fiber guide surface at a deflection point, for example at an entry edge, at an inclination angle and that the deflection point is arranged inside or at the edge of the fiber guide element;
This results in a significantly improved flow condition and in particular a rolling or pendulum movement of the fiber structure can be effectively contained. The deflection point, for example an entry edge, can be at the edge of the fiber guide element, ie at the end face of the fiber guide element (see end face 33 from the following FIG. 2 ), as well as be arranged by resetting or suitable positioning in the interior of the fiber guide element.

Die Erfindung lässt offen, wie der Austritt des Faserführungselementes gestaltet sein kann. Dieser kann gemäss der Lehre der Schrift 1 335 050 A2 erfolgen. Diese Ausgestaltung des Austrittes ist aber nicht zwingend durch die Erfindung vorgegeben.The invention leaves open how the outlet of the fiber guide element can be designed. This can be done according to the teaching of the document 1,335,050 A2. However, this embodiment of the outlet is not necessarily predetermined by the invention.

Vorteilhafte Ausgestaltungen der Erfindung sind in weiteren Ansprüchen angegeben.Advantageous embodiments of the invention are specified in further claims.

Die Erfindung wird nachfolgend anhand einer Zeichnung beispielsweise näher erläutert. Dabei zeigen:

Figur 1
Darstellung von Faserführungselement und Auslaufwalzenpaar einer Spinnstelle gemäss dem Stand der Technik in EP 0 854 214 A2 und EP 1 335 050 A2 .
Figur 2
Schnittdarstellung eines erfindungsgemässen Faserführungselementes an einer Spinnstelle;
Figur 3
Gegenüber Figur 2 detailliertere Schnittdarstellung eines erfind ungsgemässen Faserführungselementes.
The invention will be explained in more detail with reference to a drawing, for example. Showing:
FIG. 1
Representation of fiber guide element and outlet roller pair of a spinning station according to the prior art in EP 0 854 214 A2 and EP 1 335 050 A2 ,
FIG. 2
Sectional view of a fiber guide element according to the invention at a spinning station;
FIG. 3
Across from FIG. 2 more detailed sectional view of a fiber guide element according to the invention.

In Figur 1 ist zur Verdeutlichung der Problemstellung und der durch die vorliegende Erfindung geleisteten Lösung eine Spinnstelle 6 einer Luftspinnmaschine mit einem Auslaufwalzenpaar 2 und einer als Hülse ausgebildeten Faserführungselement 3 in einer perspektivischen Sicht gezeigt. Ein Faserverband 1 wird durch das Faserführungselement 3 geführt, welcher anschliessend in der nicht dargestellten Spindel 7 zu einem Garn mittels Drallerteilung versponnen wird. Aufgabe des Faserführungselementes 3 ist es, den Faserverband 1 optimal der anschliessenden Wirbelkammer 36 zuzuführen, damit dort ein Garn mittels einer Luftströmung gebildet werden kann.In FIG. 1 To clarify the problem and the solution provided by the present invention, a spinning unit 6 of an air-spinning machine with a pair of outlet rollers 2 and a fiber guide element 3 designed as a sleeve is shown in a perspective view. A fiber structure 1 is guided by the fiber guide element 3, which is then spun in the spindle 7, not shown, to form a yarn by means of twist distribution. The task of the fiber guiding element 3 is to supply the fiber structure 1 optimally to the subsequent vortex chamber 36, so that there a yarn can be formed by means of an air flow.

Im folgenden Kontext werden die Begriffe Faserführungselement 3 und Hülse 3 synonym verwendet.In the following context, the terms fiber guide element 3 and sleeve 3 are used synonymously.

In Figur 2 ist ein erfindungsgemässes Faserführungselement 3 gezeigt. Der Faserverband 1 wird in Richtung 34 zum Faserführungselement 3 transportiert. Um eine noclbessere Aufspreizung der Randfasern zu erreichen, ist eine Umlenkung an der Eintrittskante 32 vorgesehen. Die Einrittskante 32 wird durch eine Neigung zwischen Zuführrichtung 34 und der in der Hülse 3 angeordneten Faserführungsfläche 5 gebildet und in-Innern der genannten Hülse 3 angeordnet. In diesem Ausführungsbeispiel ist auch eine Austrittskante 17 vorgesehen, um eine zusätzliche Aufspreizung der Randfasern zu erlangen. Am Ende der Austrittskante 17 ist ein Drallstop 38 vorgesehen. Die vorliegende Erfindung lässt jedoch offen, wie der Austritt und die nachfolgende Einführung in die Einlassmündung 9 der Spindel 7 ausgestaltet sein müssen. Vor der Einlassmündung 9 ist in der Wirbelkammer 36 eine Lufteintrittsöffnung 37 angeordnet. Durch das Anordnen der Eintrittskante 32 im Innern des Faserführungselementes 3 ist es besonders vorteilhaft, den Eintritt mit einer Einlauframpe 39 so zu gestalten, dass sich der Faserverband 1 beim Eintritt nicht stauen kann.In FIG. 2 a fiber guide element 3 according to the invention is shown. The fiber structure 1 is transported in the direction 34 to the fiber guiding element 3. In order to achieve a noclbessere spreading of the edge fibers, a deflection at the leading edge 32 is provided. The entry edge 32 is formed by an inclination between the feed direction 34 and the fiber guide surface 5 arranged in the sleeve 3 and arranged in the interior of said sleeve 3. In this embodiment, an exit edge 17 is provided in order to obtain an additional spreading of the edge fibers. At the end of the trailing edge 17 a twist stop 38 is provided. However, the present invention leaves open, as the outlet and the subsequent introduction into the inlet mouth 9 of the spindle 7 must be configured. In front of the inlet mouth 9 is in the vortex chamber 36, an air inlet opening 37 is arranged. By arranging the leading edge 32 in the interior of the fiber guiding element 3, it is particularly advantageous to design the inlet with an inlet ramp 39 such that the fiber structure 1 can not accumulate on entry.

Im folgenden werden besonders vorteilhafte Dimensionierungsangaben zur Anordnung der Eintrittskante 32 angegeben, es wird dabei gleichzeitig auf die Figuren 2 und 3 bezug genommen. Zu beachten ist, dass diese Dimensionierungsangaben sowohl kumulativ als auch für sich allein vorteilhafte Bedingungen für den Eintritt des Faserverbandes 1 in die Hülse 3 ermöglichen:

  1. i) Der Neigungswinkel α zwischen Faserführungsfläche 5 und Zuführrichtung 34 des Faserverbandes 1 liegt vorzugsweise in einem Wertebereich von 5° <= α <= 85°, bevorzugt 5° <= α <= 70°, besonders bevorzugt 5° <= α <= 25°.
  2. ii) Die Zuführrichtung des Faserverbandes ist gegenüber der Streckwerksebene um einen Winkel β geneigt, der vorzugsweise in einem Wertebereich von o° < β <= 10° liegt.
  3. iii) Bezogen auf die Ebene 35, die durch die Achsen der beiden Auslaufwalzen 2 definiert ist, weist die Eintrittskante 32 einen Abstand a von der genannten Ebene 35 auf, der vorzugsweise in einem Wertebereich von 9mm <= a <= 13mm liegt.
  4. iv) Die Eintrittskante 32 ist bezogen auf die meist zylinderartige Form des Hülse 3 un den Abstand b von der oberen Stirnfläche 33 des Hülse 3 angeordnet. Der Abstand b liegt dabei vorzugsweise in einem Wertebereich von 0,01 mm <= b <= 4 mm.
  5. v) Bezogen auf die Streckwerkebene 30 weist die Eintrittskante 32 einen Abstand c auf, der vorzugsweise in einem Wertebereich von 0 <= c <= 3mm liegt.
  6. vi) Die Einlauframpe 39 ist gegenüber der Faserführungsfläche 5 um eine Winkel γ geneigt. Der Wertebereich liegt vorzugsweise in einem Wertebereich von 100° <= γ <= 150°.
In the following, particularly advantageous dimensions are given for the arrangement of the leading edge 32, it is at the same time on the Figures 2 and 3 with reference. It should be noted that these dimensions allow both cumulative and advantageous conditions for the entry of the fiber structure 1 into the sleeve 3:
  1. i) The inclination angle α between the fiber guiding surface 5 and the feeding direction 34 of the fiber structure 1 is preferably in a value range of 5 ° <= α <= 85 °, preferably 5 ° <= α <= 70 °, particularly preferably 5 ° <= α <= 25 °.
  2. ii) The feeding direction of the fiber structure is inclined relative to the drafting plane by an angle β, which is preferably in a value range of o ° <β <= 10 °.
  3. iii) With respect to the plane 35 defined by the axes of the two outfeed rollers 2, the leading edge 32 is at a distance a from said plane 35 which is preferably in a range of 9mm <= a <= 13mm.
  4. iv) The leading edge 32 is arranged relative to the generally cylindrical shape of the sleeve 3 and the distance b from the upper end face 33 of the sleeve 3. The distance b is preferably in a value range of 0.01 mm <= b <= 4 mm.
  5. v) Based on the drafting plane 30, the leading edge 32 has a distance c, which is preferably in a value range of 0 <= c <= 3mm.
  6. vi) The inlet ramp 39 is inclined relative to the fiber guide surface 5 by an angle γ. The value range is preferably in a value range of 100 ° <= γ <= 150 °.

Wie vorstehend erläutert, sind die angegeben Werte sowohl einzeln für eine Spinnstelle 6 bzw. für ein Faserführungselement 3 als auch in Kombination anwendbar. Die Erfindung lässt offen, wie das Faserführungselement 3 konstruktiv auszugestalten ist, z.B. kann an der Eintrittskante 32 eine Rundung vorgenommen werden.As explained above, the indicated values are applicable both individually for a spinning station 6 or for a fiber guiding element 3 and also in combination. The invention leaves open how the fiber guide element 3 is structurally to design, for example, can be made at the leading edge 32 a rounding.

Liste der verwendeten Bezugszeichen und AbkürzungenList of reference numbers and abbreviations used

11
Faserverbandfiber structure
22
AuslaufwalzenpaarPair of delivery rollers
33
FaserführungselementFiber guide element
44
FaserführungskanalFiber guide channel
55
FaserführungsflächeFiber guide surface
66
Spinnstellespinning unit
77
Spindelspindle
99
Einlassmündunginlet mouth
1717
Umlenkstelle, Austrittskante an der Faserführungsfläche des FaserführungselementesDeflection point, trailing edge on the fiber guide surface of the fiber guide element
3030
StreckwerkebeneDrafting system level
3131
Klemmlinieclamping line
3232
Eintrittskante an der Faserführungsfläche 5 des Faserführungselementes 3Leading edge on the fiber guide surface 5 of the fiber guide element 3rd
3333
obere Stirnfläche des Faserführungselementes 3upper end face of the fiber guiding element 3
3434
Zuführrichtung des Faserverbandes vor Eintritt in das Faserführungselement 3Feeding direction of the fiber structure before entering the fiber guide element 3rd
3535
durch die Drehachsen der Auslaufwalzen 2 gebildete Ebeneformed by the axes of rotation of the outlet rollers 2 level
3636
Wirbelkammerswirl chamber
3737
Eintrittsöffnung LuftströmungInlet opening airflow
3838
Drallstoptwist stop
3939
Einlauframpeinlet ramp
αα
Winkel zwischen Faserführungsfläche 5 und Zuführrichtung 34 des FaserverbandesAngle between fiber guide surface 5 and feed direction 34 of the fiber structure
ββ
Winkel zwischen Zuführrichtung des Faserverbandes und Streckwerkebene 3(Angle between feed direction of the fiber structure and drafting plane 3 (FIG.
γγ
Winkel zwischen Einlauframpe 39 und Faserführungsfläche 5Angle between inlet ramp 39 and fiber guide surface 5
aa
Abstand Eintrittskante 32 zur Ebene, die die Rotationsachsen der Auslaufwalzen 2 des Streckwerkes enthältDistance leading edge 32 to the plane containing the axes of rotation of the exit rollers 2 of the drafting system
bb
Abstand Eintrittskante 32 zur oberen Stirnfläche 33 der Hülse 3Distance from the leading edge 32 to the upper end face 33 of the sleeve. 3
cc
Abstand Eintrittskante 32 zur Streckwerksebene 30Distance from the leading edge 32 to the drafting plane 30

Claims (11)

  1. A spinning position (6) of an air-jet spinner for producing a yarn from a fiber structure (1), the spinning position (6) having a fiber guidance element (3) with a fiber guiding surface (5) contained therein, to which the fiber structure (1) is introduced;
    characterized in that
    the direction of introduction (34) of the fiber structure (1) is inclined by an angle of inclination α in relation to the direction of the fiber guiding surface (5) at a deflecting location (32), preferably an entry edge (32), and in that the deflecting location (32) is arranged inside or at the edge of the fiber guidance element (3).
  2. The spinning position (6) as claimed in claim 1,
    characterized in that
    the angle of inclination α between the direction of introduction (34) of the fiber structure (1) and the direction of the fiber guiding surface (5) lies in the range of values of 5° <= α <= 75°, with preference in the range of values of 5° <= α <= 25°; preferably, the angle of inclination α has a value of 15°.
  3. The spinning position (6) as claimed in claim 1 or 2,
    characterized in that
    the fiber guidance element (3) has an end face (33) and in that the deflecting location (32), preferably the entry edge (32), is at a distance b from the end face (33) in the direction of the fiber guiding surface (5) of 0.01 mm <= b <= 4 mm; with preference, the distance b has a value of 1 mm.
  4. The spinning position (6) as claimed in one of claims 1 to 3,
    characterized in that
    the fiber guidance element (3) has a run-in ramp (39), which is inclined with respect to the fiber guiding surface (5) by an angle γ, which lies in a range of values of 100° <= γ <= 150°; with preference, the angle has a value of 120°.
  5. The spinning position (6) as claimed in one of claims 1 to 4,
    characterized in that a drafting system is arranged upstream of the fiber guidance element (3) and in that the entry edge (32) lies outside the associated plane (30) of the drafting system.
  6. The spinning position (6) as claimed in claim 5,
    characterized in that
    the plane (30) of the drafting system is inclined in relation to the direction of introduction (34) of the fiber structure (1) by an angle β which lies in the range of values of 0° < β <= 10°; preferably, the angle β has a value of 5°.
  7. The spinning position (6) as claimed in one of claims 1 to 6,
    characterized in that
    the drafting system includes two delivery rollers (2) and in that the entry edge (32) lies at a distance a from the plane (35) formed by the axes of rotation of the delivery rollers (2), the distance a lying in the range of values of 9 mm <= a <= 13 mm; preferably, the distance a has a value of 11 mm.
  8. A fiber guidance element (3) with a fiber guiding surface (5) contained therein for a spinning position (6) of an air-jet spinner,
    characterized in that
    a deflecting location (32), preferably an entry edge (32), is formed by the fiber guiding surface (5) and a run-in ramp (39) inside or at the edge of the fiber guidance element (3).
  9. The fiber guidance element (3) as claimed in claim 8,
    characterized in that
    the fiber guidance element (3) has an end face (33) and in that the deflecting location (32), preferably entry edge, is at a distance b from the end face (33) in the direction of the fiber guiding surface (5) in the range of values of 0.01 mm <= b <= 4 mm; with preference, the distance b has a value of 1 mm.
  10. The fiber guidance element (3) as claimed in claim 8 or 9,
    characterized in that
    the fiber guiding surface (5) and the run-in ramp (39) are inclined by an angle γ, which lies in the range of values of 100° <= γ <= 150°; with preference, the angle γ has a value of 120°.
  11. The spinning position (6) as claimed in claim 5, characterized in that
    the distance c between the deflecting location (32) and the plane (30) of the drafting system lies in the range of values of 0 mm <= c <= 7 mm, the distance c preferably being 1 mm.
EP04738064A 2003-11-11 2004-07-06 Spinning post with fibre guidance element Expired - Lifetime EP1682702B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH19412003 2003-11-11
PCT/CH2004/000423 WO2005045105A1 (en) 2003-11-11 2004-07-06 Spinning post with fibre guidance element

Publications (2)

Publication Number Publication Date
EP1682702A1 EP1682702A1 (en) 2006-07-26
EP1682702B1 true EP1682702B1 (en) 2010-05-19

Family

ID=34558435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04738064A Expired - Lifetime EP1682702B1 (en) 2003-11-11 2004-07-06 Spinning post with fibre guidance element

Country Status (6)

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US (1) US7493749B2 (en)
EP (1) EP1682702B1 (en)
JP (1) JP4778437B2 (en)
CN (1) CN1878895B (en)
DE (1) DE502004011186D1 (en)
WO (1) WO2005045105A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012108612A1 (en) * 2012-09-14 2014-05-15 Maschinenfabrik Rieter Ag spinning unit
DE102015115912A1 (en) * 2015-09-21 2017-03-23 Maschinenfabrik Rieter Ag Channel plate adapter and open-end spinning device with a channel plate adapter

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JPS57128221A (en) * 1981-01-31 1982-08-09 Toyota Central Res & Dev Lab Inc Air-twisting spinner
JPS58197320A (en) * 1982-05-14 1983-11-17 Toyoda Autom Loom Works Ltd Bundle spinning and device therefor
DE3631400A1 (en) * 1986-09-16 1988-03-17 Fritz Stahlecker METHOD AND DEVICE FOR PNEUMATIC SPIRAL SPINNING
CH676725A5 (en) * 1988-11-07 1991-02-28 Rieter Ag Maschf
JPH0389178A (en) * 1989-08-31 1991-04-15 Toshiba Corp Semiconductor integrated circuit
JP2767296B2 (en) * 1989-08-31 1998-06-18 アンリツ株式会社 Cable connection tester
JPH0389178U (en) * 1989-12-26 1991-09-11
JPH0389177U (en) * 1989-12-27 1991-09-11
JPH06108322A (en) * 1992-09-24 1994-04-19 Murata Mach Ltd Apparatus for spinning
CN1054895C (en) * 1995-09-22 2000-07-26 东华大学 Free end air jet spinning yarn device
JPH10204731A (en) * 1997-01-16 1998-08-04 Murata Mach Ltd Spinning apparatus
JP3123517B2 (en) * 1998-08-18 2001-01-15 村田機械株式会社 Spinning nozzle member
US7059110B2 (en) * 2000-09-22 2006-06-13 Maschinenfabrik Rieter Ag Spinning device for production of spun thread from a fibre sliver
EP1217109A3 (en) * 2000-12-22 2003-04-02 Maschinenfabrik Rieter Ag Spinning device
US6679044B2 (en) * 2000-12-22 2004-01-20 Maschinenfabrik Rieter Ag Pneumatic spinning apparatus
DE50310137D1 (en) * 2002-02-12 2008-08-28 Rieter Ag Maschf Textile processing machine with a fiber conveying channel and a fiber guiding surface
DE50304912D1 (en) * 2002-03-20 2006-10-19 Rieter Ag Maschf Air spinning device with channel lining
DE10261011A1 (en) * 2002-12-17 2004-07-08 Wilhelm Stahlecker Gmbh Device for producing a spun thread

Also Published As

Publication number Publication date
CN1878895B (en) 2010-09-01
US7493749B2 (en) 2009-02-24
DE502004011186D1 (en) 2010-07-01
JP2007510822A (en) 2007-04-26
US20070266694A1 (en) 2007-11-22
JP4778437B2 (en) 2011-09-21
CN1878895A (en) 2006-12-13
WO2005045105A1 (en) 2005-05-19
EP1682702A1 (en) 2006-07-26

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