EP0528056B1 - Ring spinning machine - Google Patents

Ring spinning machine Download PDF

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Publication number
EP0528056B1
EP0528056B1 EP91112773A EP91112773A EP0528056B1 EP 0528056 B1 EP0528056 B1 EP 0528056B1 EP 91112773 A EP91112773 A EP 91112773A EP 91112773 A EP91112773 A EP 91112773A EP 0528056 B1 EP0528056 B1 EP 0528056B1
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EP
European Patent Office
Prior art keywords
ring
spinning
section
radius
running
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
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EP91112773A
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German (de)
French (fr)
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EP0528056A1 (en
Inventor
Arthur Würmli
Herbert Dr. Stalder
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Maschinenfabrik Rieter AG
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Maschinenfabrik Rieter AG
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Publication of EP0528056A1 publication Critical patent/EP0528056A1/en
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    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H7/00Spinning or twisting arrangements
    • D01H7/02Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52Ring-and-traveller arrangements
    • D01H7/60Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
    • D01H7/602Rings
    • DTEXTILES; PAPER
    • D01NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01HSPINNING OR TWISTING
    • D01H7/00Spinning or twisting arrangements
    • D01H7/02Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52Ring-and-traveller arrangements
    • D01H7/60Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings

Definitions

  • the invention relates to a ring spinning machine according to the preamble of claim 1.
  • Angular flange rings have long been known from the patent literature, for example from US Pat. No. 3,159,963.
  • Angular flange rings are used to increase the contact surfaces between the spinning ring and the ring traveler and, with a reduction in the specific surface pressure, also to reduce wear and at the same time to increase the stability of movement of the ring traveler on the spinning ring.
  • a slight curvature of the tread of the spinning ring on the conical inside of the inclined flange of the spinning ring can lead to the ring traveler becoming unstable since it is not forced enough into its stable position with line contact on the tread of the spinning ring. This can also lead to higher wear on the ring traveler and thus also on the spinning ring. If the radius of the spinning ring is at the point of the smallest If the inside diameter is chosen too small, the surface pressure between the spinning ring and ring traveler is considerably higher at this point than in the other areas of the rotor. This also leads to greater wear and tear at the points in question, which further reduces the life of the rotor on the ring spinning machine. This is the case with the known solutions according to the prior art.
  • prior art spinning rings have the disadvantage that the height of the bead in the running section of the spinning ring is chosen to be unnecessarily large.
  • the height measured in the direction of the flange inclination can be more than twice the thickness of the bead, as a result of which the dimensions of the rotor and thus its mass increase.
  • the surface pressure is comparatively high due to the centrifugal force of the rotor for a given wire diameter of the rotor. If a given rotor mass is to be maintained, the wire diameter of the rotor must be chosen so small that the surface pressure between the ring rotor and the spinning ring, again due to the smaller contact surface, becomes so high that inadmissible wear occurs.
  • the spinning ring 1 according to the invention in FIGS. 1 and 2 is mounted in a ring frame 15 of the ring spinning machine.
  • the base section 14 of the spinning ring 1 connected to the ring frame 15 goes up into the so-called inclined flange 11 and this merges into the running section 12 of the spinning ring.
  • the oblique flange 11 resembles a circular truncated cone with generatrixes which are inclined at an angle ⁇ according to FIG. 2 to the vertical.
  • At the top of the ring there is a bead 12 'on the running section 12 of the spinning ring, which also leads the ring traveler 2 which has been placed on the spinning ring 1 to the running surface 13.
  • the tread 13 has a curvature between the points A and B, which can have a constant radius of curvature R2. Above point A, a partial running surface 13 'with the radius of curvature R1 adjoins the running section 12 of the ring.
  • the connecting line C between points A and B forms an angle ⁇ with the vertical, which is preferably 33 ° + -2 °.
  • the ring traveler 2 is shown in FIGS. 1 and 2 not lying against the spinning ring in the meridian plane of the section through the spinning ring 11.
  • the ring traveler 2 consists essentially of an outer rotor leg 21, which surrounds the bead 12 ', and an inner rotor leg 22.
  • the running surface 13 of the spinning ring as described above formed by parts of circular surfaces with the radii R1 and R2, would ideally be parts of hyperboloids with constantly changing radii of curvature in the meridian section. In practice, however, the approximation of a hyperboloid part by a curved surface with a constant radius is sufficient.
  • the inner rotor leg 22 of the ring traveler 2 can run in a straight line between the points A and B. When the ring traveler 2 is inclined on the spinning ring 1 during the rotation, As indicated in Fig.
  • the side of the rotor arm 22 facing the spinning ring lies evenly on the spinning ring in the area between the points A and B, but also above the point A, if the inner contour of the rotor arm 22 at point A is shaped accordingly.
  • the radius R1 on the spinning ring is 1.0 mm, choose 1.2 mm for the corresponding inner radius R3 of the ring traveler.
  • the shape of the outer rotor leg 21 in the periphery of the bead 12 ' is less important for the function of the ring rotor. There must be enough distance between the bead 12 'and the inner contour of the runner leg 21 so that the ring traveler 2 does not touch the outside of the bead 12' during the rotation on the spinning ring 1.
  • Preferred dimensions of the spinning ring 2 in the meridian section are as follows:
  • the underlined values are preferred for ring spinning machines in the yarn number range 5 ... 30tex.
  • the inner diameter D according to Fig. 1 can e.g. be between 36 mm and 40 mm.
  • Fig. 3 shows a partial view of a spinning ring 1 with the ring traveler 2 during the circulation in the circumferential direction according to arrow L.
  • the spinning yarn G above the ring traveler 2 runs as a thread balloon around the spindle 3, is deflected at the top in the ring traveler 2 and runs from here in the direction of the arrow G 'tangentially on the circumference of the spindle 3.
  • the ring traveler 2 is inclined during the circulation on the spinning ring 1 as shown in FIG. 3. The inclination depends on various factors such as the spinning speed, the thread number, the spindle diameter, the thread titer, the frictional relationships between the spinning ring 1 and ring traveler 2 etc.
  • the Ring traveler 2 opposite the spinning ring 1 such that its inner rotor leg 22 on the inside coincides with the generatrix of a hyporboloid, which, as mentioned, partly through the running surface 13 in the area between the points A and B through the curved surface with the radius of curvature R2 in the meridian section is approximated.
  • Fig. 4 is a section along section line IV - IV through the spinning ring 1 in Fig. 3.
  • the forces acting on the ring traveler are shown, namely the centrifugal force F due to the mass of the ring traveler, the component of the ring plane resulting thread force R, the normal force N from the spinning ring 1 on the ring traveler 2, which comes from the surface pressure between the ring traveler 2 and the spinning ring 1 below point A, and the supporting force S, which in the partial running surface 13 'of the spinning ring 1 on the corresponding lot of Runner is transmitted.
  • the contact zone between the spinning ring 1 and the ring traveler 2 is shown by the dashed arrow line Z.
  • Fig. 5 the line of forces for the forces keeping the ring traveler 2 in equilibrium is drawn in solid lines, namely in solid lines for the conditions in a ring spinning machine according to the invention and in dashed lines for a comparable ring spinning machine according to the prior art, such as it is represented, for example, by the aforementioned US Pat. No. 3,159,963.
  • the centrifugal force F ' is considerably greater than the centrifugal force F in an embodiment according to the invention, since the outer rotor leg 21 according to the prior art is considerably longer than that according to the invention.
  • the components R and R 'of the resulting thread forces in the cutting plane are assumed to be the same size.
  • the magnitude of the normal forces N or N ' results from the assumption that the supporting forces S or S' run at the same specific angle for both cases under consideration and close the force plan to the origin of the centrifugal force F or F '. It can be seen from the comparison of the two force plans in FIG.

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

Description

Die Erfindung betrifft eine Ringspinnmaschine gemäss dem Oberbegriff des Anspruches 1.The invention relates to a ring spinning machine according to the preamble of claim 1.

Schrägflanschringe sind aus der Patentliteratur, beispielsweise aus der US-PS 3 159 963, seit langem bekannt.Angular flange rings have long been known from the patent literature, for example from US Pat. No. 3,159,963.

Schrägflanschringe werden verwendet, um die Kontaktoberflächen zwischen Spinnring und Ringläufer zu vergrössern und mit einer Reduktion der spezifischen Flächenpressung auch die Abnutzung zu verringern und gleichzeitig die Bewegungsstabilität des Ringläufers auf dem Spinnring zu erhöhen.Angular flange rings are used to increase the contact surfaces between the spinning ring and the ring traveler and, with a reduction in the specific surface pressure, also to reduce wear and at the same time to increase the stability of movement of the ring traveler on the spinning ring.

Bei den bekannten Spinnringen in Schrägflanschausführung beträgt die Neigung des Schrägflansches und somit der Innenlauffläche des Spinnringes 38° oder mehr gegenüber der Vertikalen. Durch diese starke Neigung der Lauffläche wird die Belastung von Ring und Läufer an der Stelle des kleinsten Innendurchmessers des Spinnringes jedoch relativ gross, wie weiter unten näher erläutert werden wird. Diese örtlich starke Belastung des Ringläufers verringert seine Standzeit besonders bei hohen Spinngeschwindigkeiten zu stark.In the known inclined flange spinning rings, the inclination of the inclined flange and thus the inner running surface of the spinning ring is 38 ° or more with respect to the vertical. Due to this strong inclination of the tread, however, the load on the ring and rotor at the location of the smallest inner diameter of the spinning ring becomes relatively large, as will be explained in more detail below. This locally heavy load on the ring traveler reduces its service life too much, especially at high spinning speeds.

Eine nur schwache Wölbung der Lauffläche des Spinnringes an der konischen Innenseite des Schrägflansches des Spinnringes kann dazu führen, dass der Ringläufer instabil wird, da er zu wenig in seine stabile Lage unter Linienberührung an der Lauffläche des Spinnringes gezwungen wird. Dies kann ebenfalls zu höherem Verschleiss am Ringläufer und somit auch am Spinnring führen. Wenn der Radius des Spinnringes an der Stelle des kleinsten Innendurchmessers zu klein gewählt wird, ist die Flächenpressung zwischen Spinnring und Ringläufer an dieser Stelle wesentlich höher als in den übrigen Bereichen des Läufers. Dies führt ebenfalls zu stärkerem Verschleiss an den betreffenden Stellen, wodurch die Standzeit des Läufers auf der Ringspinnmaschine weiter verringert wird. Dies ist bei den bekannten Lösungen nach dem Stand der Technik der Fall. Weiterhin weisen Spinnringe nach dem Stand der Technik den Nachteil auf, dass die Höhe des Wulstes in der Laufpartie des Spinnringes unnötig gross gewählt wird. Die Höhe in Richtung der Flanschneigung gemessen kann mehr als das Doppelte der Dicke des Wulstes betragen, wodurch die Dimensionen des Läufers und damit seine Masse wachsen. Dies führt dazu, dass bei gegebenem Drahtdurchmesser des Läufers die Flächenpressung aufgrund der Fliehkraft des Läufers vergleichsweise gross ist. Soll eine gegebene Läufermasse eingehalten werden, dann muss der Drahtdurchmesser des Läufers so klein gewählt werden, dass die Flächenpressung zwischen Ringläufer und Spinnring, wiederum wegen der kleineren Auflagefläche, so hoch wird, dass unzulässiger Verschleiss auftritt.A slight curvature of the tread of the spinning ring on the conical inside of the inclined flange of the spinning ring can lead to the ring traveler becoming unstable since it is not forced enough into its stable position with line contact on the tread of the spinning ring. This can also lead to higher wear on the ring traveler and thus also on the spinning ring. If the radius of the spinning ring is at the point of the smallest If the inside diameter is chosen too small, the surface pressure between the spinning ring and ring traveler is considerably higher at this point than in the other areas of the rotor. This also leads to greater wear and tear at the points in question, which further reduces the life of the rotor on the ring spinning machine. This is the case with the known solutions according to the prior art. Furthermore, prior art spinning rings have the disadvantage that the height of the bead in the running section of the spinning ring is chosen to be unnecessarily large. The height measured in the direction of the flange inclination can be more than twice the thickness of the bead, as a result of which the dimensions of the rotor and thus its mass increase. As a result, the surface pressure is comparatively high due to the centrifugal force of the rotor for a given wire diameter of the rotor. If a given rotor mass is to be maintained, the wire diameter of the rotor must be chosen so small that the surface pressure between the ring rotor and the spinning ring, again due to the smaller contact surface, becomes so high that inadmissible wear occurs.

Aus der britischen Patentschrift GB 1577151 ist ein Schrägflanschring bekannt, bei dem die Neigung des Schrägflansches nur ca. 30° gegenüber der Vertikalen beträgt. Auch die Dimensionen des Wulstes sind weniger ungünstig als bei anderen bekannten Schrägflanschringen, so dass die Höhe des Wulstes nur wenig mehr als seine Dicke wie oben definiert beträgt. Bei diesem Ring bleibt aber der Nachteil, dass die Wölbung der Oberfläche des Spinnringes an der Stelle des kleinsten Innendurchmessers im Vergleich zu den übrigen Dimensionen relativ klein ist, was zu einer starken Belastung des Ringes an dieser Stelle und an der entsprechenden Berührungszone des Ringläufers führt.From the British patent GB 1577151 an inclined flange ring is known in which the inclination of the inclined flange is only about 30 ° with respect to the vertical. The dimensions of the bead are also less unfavorable than in other known inclined flange rings, so that the height of the bead is only slightly more than its thickness as defined above. However, the disadvantage of this ring is that the curvature of the surface of the spinning ring at the point of the smallest inner diameter is relatively small compared to the other dimensions, which leads to a heavy load on the ring at this point and at the corresponding contact zone of the ring traveler.

Es ist Aufgabe der vorliegenden Erfindung, einen Spinnring für eine Ringspinnmaschine zu schaffen, der die Nachteile der erwähnten Spinnringe nach dem Stand der Technik vermeidet, eine besonders hohe Standzeit aufweist und eine grosse Spinngeschwindigkeit ermöglicht.It is an object of the present invention to provide a spinning ring for a ring spinning machine, which has the disadvantages avoids the aforementioned spinning rings according to the prior art, has a particularly long service life and enables a high spinning speed.

Diese Aufgabe wird durch die technische Lehre der Ansprüche gelöst.This problem is solved by the technical teaching of the claims.

In einer Ringspinnmaschine mit Merkmalen gemäss der Erfindung können höhere Spinngeschwindigkeiten bei gleichzeitig verringerter Abnutzung an den Läufern und Ringen erzielt werden. Aufgrund des besseren Verhaltens der Läufer bei der Rotation auf den Ringen wird die Garnqualität gesteigert und die Neigung zu Fadenbrüchen reduziert.In a ring spinning machine with features according to the invention, higher spinning speeds with reduced wear on the runners and rings can be achieved. Due to the better behavior of the runners when rotating on the rings, the yarn quality is increased and the tendency to thread breaks is reduced.

Im folgenden wird die Erfindung anhand der Figuren im einzelnen beschrieben.The invention is described in detail below with reference to the figures.

Es zeigen:

Fig. 1
einen Teil eines Meridianschnittes durch einen Spinnring mit einem Ringläufer,
Fig. 2
eine Teilansicht eines Spinnringes im Meridianschnitt,
Fig. 3
eine Teilansicht eines Spinnringes mit dem Ringläufer während des Umlaufes in Schrägstellung des Ringläufers,
Fig. 4
einen Teilschnitt durch den Spinnring nach Linie IV-IV in Fig.3 mit dem Ringläufer während des Umlaufes mit den am Läufer wirkenden Kräften, und
Fig. 5
einen Kräfteplan der am Ringläufer wirkenden Kräfte bei einem Spinnring gemäss der Erfindung in ausgezogenen Linien und bei einem Spinnring nach dem Stand der Technik in gestrichelten Linien.
Show it:
Fig. 1
part of a meridian section through a spinning ring with a ring traveler,
Fig. 2
a partial view of a spinning ring in the meridian section,
Fig. 3
2 shows a partial view of a spinning ring with the ring traveler during the rotation in the inclined position of the ring traveler,
Fig. 4
a partial section through the spinning ring according to line IV-IV in Figure 3 with the ring traveler during the circulation with the forces acting on the rotor, and
Fig. 5
a force plan of the forces acting on the ring traveler in a spinning ring according to the invention in solid lines and in a spinning ring according to the prior art in dashed lines.

Der Spinnring 1 gemäss der Erfindung in den Fig. 1 bzw. 2 ist in einem Ringrahmen 15 der Ringspinnmaschine gelagert. Die mit dem Ringrahmen 15 verbundene Grundpartie 14 des Spinnringes 1 geht nach oben in den sogenannten Schrägflansch 11 und dieser in die Laufpartie 12 des Spinnringes über. Der Schrägflansch 11 ähnelt einem Kreiskegelstumpf mit Erzeugenden, die unter einem Winkel α gemäss Fig. 2 gegen die Vertikale geneigt sind. Oben am Ring befindet sich an der Laufpartie 12 des Spinnringes ein Wulst 12', der den auf dem Spinnring 1 aufgesteckten Ringläufer 2 zusätzlich zur Lauffläche 13 führt. Die Lauffläche 13 weist zwischen den Punkten A und B eine Krümmung auf, die einen konstanten Krümmungsradius R2 haben kann. Oberhalb des Punktes A schliesst sich in der Laufpartie 12 des Rings eine Teillauffläche 13' mit dem Krümmungsradius R1 an. Die Verbindungslinie C zwischen den Punkten A und B schliesst mit der Vertikalen einen Winkel α ein, der vorzugsweise 33°+-2° beträgt. Der Ringläufer 2 ist in den Figuren 1 und 2 nicht am Spinnring anliegend in der Meridianebene des Schnittes durch den Spinnring 11 gezeigt. Der Ringläufer 2 besteht im wesentlichen aus einem äusseren Läuferschenkel 21, der den Wulst 12' umgreift, und einem inneren Läuferschenkel 22. Die Lauffläche 13 des Spinnringes, wie oben beschrieben durch Teile von Kreistorusflächen mit den Radien R1 und R2 gebildet, wären im Idealfall Teile von Hyperboloiden mit stetig ändernden Krümmungsradien im Meridianschnitt. In der Praxis genügt jedoch die Annäherung eines Hyperboloid-Teiles durch eine gekrümmte Fläche mit konstantem Radius. Der innere Läuferschenkel 22 des Ringläufers 2 kann zwischen den Punkten A und B geradlinig verlaufen. Bei der Schrägstellung des Ringläufers 2 auf dem Spinnring 1 während des Umlaufes, wie in Fig. 3 angedeutet, liegt die dem Spinnring zugewandte Seite des Läuferschenkels 22 gleichmässig am Spinnring im Bereich zwischen den Punkten A und B auf, aber auch oberhalb des Punktes A, wenn die Innenkontur des Läuferschenkels 22 beim Punkt A entsprechend geformt ist. Beträgt der Radius R1 am Spinnring 1.0 mm, so wählt man für den entsprechenden Innenradius R3 des Ringläufers beispielsweise 1.2 mm. Die Formgebung des äusseren Läuferschenkels 21 in der Peripherie des Wulstes 12' ist für die Funktion des Ringläufers weniger von Bedeutung. Zwischen dem Wulst 12' und der Innenkontur des Läuferschenkels 21 muss so viel Abstand sein, dass der Ringläufer 2 während des Umlaufes auf dem Spinnring 1 die Aussenseite des Wulstes 12' nicht berührt. Bevorzugte Abmessungen des Spinnringes 2 im Meridianschnitt sind folgende:

Figure imgb0001
The spinning ring 1 according to the invention in FIGS. 1 and 2 is mounted in a ring frame 15 of the ring spinning machine. The base section 14 of the spinning ring 1 connected to the ring frame 15 goes up into the so-called inclined flange 11 and this merges into the running section 12 of the spinning ring. The oblique flange 11 resembles a circular truncated cone with generatrixes which are inclined at an angle α according to FIG. 2 to the vertical. At the top of the ring there is a bead 12 'on the running section 12 of the spinning ring, which also leads the ring traveler 2 which has been placed on the spinning ring 1 to the running surface 13. The tread 13 has a curvature between the points A and B, which can have a constant radius of curvature R2. Above point A, a partial running surface 13 'with the radius of curvature R1 adjoins the running section 12 of the ring. The connecting line C between points A and B forms an angle α with the vertical, which is preferably 33 ° + -2 °. The ring traveler 2 is shown in FIGS. 1 and 2 not lying against the spinning ring in the meridian plane of the section through the spinning ring 11. The ring traveler 2 consists essentially of an outer rotor leg 21, which surrounds the bead 12 ', and an inner rotor leg 22. The running surface 13 of the spinning ring, as described above formed by parts of circular surfaces with the radii R1 and R2, would ideally be parts of hyperboloids with constantly changing radii of curvature in the meridian section. In practice, however, the approximation of a hyperboloid part by a curved surface with a constant radius is sufficient. The inner rotor leg 22 of the ring traveler 2 can run in a straight line between the points A and B. When the ring traveler 2 is inclined on the spinning ring 1 during the rotation, As indicated in Fig. 3, the side of the rotor arm 22 facing the spinning ring lies evenly on the spinning ring in the area between the points A and B, but also above the point A, if the inner contour of the rotor arm 22 at point A is shaped accordingly. If the radius R1 on the spinning ring is 1.0 mm, choose 1.2 mm for the corresponding inner radius R3 of the ring traveler. The shape of the outer rotor leg 21 in the periphery of the bead 12 'is less important for the function of the ring rotor. There must be enough distance between the bead 12 'and the inner contour of the runner leg 21 so that the ring traveler 2 does not touch the outside of the bead 12' during the rotation on the spinning ring 1. Preferred dimensions of the spinning ring 2 in the meridian section are as follows:
Figure imgb0001

Die unterstrichenen Werte sind bevorzugt für Ringspinnmaschinen im Garnnummernbereich 5...30tex. Der Innendurchmesser D gemäss Fig. 1 kann dabei z.B. zwischen 36 mm und 40 mm betragen.The underlined values are preferred for ring spinning machines in the yarn number range 5 ... 30tex. The inner diameter D according to Fig. 1 can e.g. be between 36 mm and 40 mm.

Fig. 3 zeigt eine Teilansicht eines Spinnringes 1 mit dem Ringläufer 2 während des Umlaufes in Umfangsrichtung gemäss Pfeil L. Das Spinngarn G oberhalb des Ringläufers 2 läuft als Fadenballon um die Spindel 3, wird oben im Ringläufer 2 umgelenkt und läuft von hier aus in Richtung des Pfeiles G' tangential am Umfang der Spindel 3 auf. Der Ringläufer 2 stellt sich während des Umlaufes am Spinnring 1 wie in Fig. 3 gezeigt schräg. Die Schrägstellung hängt von verschiedenen Faktoren wie der Spinngeschwindigkeit, der Garnnummer, dem Spindeldurchmesser, dem Garntiter, den Reibungsverhältnissen zwischen Spinnring 1 und Ringläufer 2 etc. ab. Unter idealen Verhältnissen stellt sich der Ringläufer 2 gegenüber dem Spinnring 1 so ein, dass sein innerer Läuferschenkel 22 auf der Innenseite mit der Erzeugenden eines Hyporboloides zusammenfällt, das wie erwähnt teilweise durch die Lauffläche 13 im Bereich zwischen den Punkten A und B durch die gekrümmte Fläche mit dem Krümmungsradius R2 im Meridianschnitt angenähert wird.Fig. 3 shows a partial view of a spinning ring 1 with the ring traveler 2 during the circulation in the circumferential direction according to arrow L. The spinning yarn G above the ring traveler 2 runs as a thread balloon around the spindle 3, is deflected at the top in the ring traveler 2 and runs from here in the direction of the arrow G 'tangentially on the circumference of the spindle 3. The ring traveler 2 is inclined during the circulation on the spinning ring 1 as shown in FIG. 3. The inclination depends on various factors such as the spinning speed, the thread number, the spindle diameter, the thread titer, the frictional relationships between the spinning ring 1 and ring traveler 2 etc. Under ideal conditions, the Ring traveler 2 opposite the spinning ring 1 such that its inner rotor leg 22 on the inside coincides with the generatrix of a hyporboloid, which, as mentioned, partly through the running surface 13 in the area between the points A and B through the curved surface with the radius of curvature R2 in the meridian section is approximated.

Fig. 4 ist ein Schnitt gemäss Schnittlinie IV - IV durch den Spinnring 1 in Fig. 3. In Fig. 4 sind die am Ringläufer wirkenden Kräfte eingezeichnet, und zwar die Fliehkraft F aufgrund der Masse des Ringläufers, die in der Schnittebene liegende Komponente der resultierenden Fadenkraft R, die Normalkraft N vom Spinnring 1 auf den Ringläufer 2, die von der Flächenpressung zwischen Ringläufer 2 und Spinnring 1 unterhalb des Punktes A herrührt, und die Stützkraft S, die in der Teillauffläche 13' des Spinnringes 1 auf die entsprechende Partie des Läufers übertragen wird. Die Berührungszone zwischen dem Spinnring 1 und dem Ringläufer 2 wird durch die gestrichelte Pfeillinie Z dargestellt.Fig. 4 is a section along section line IV - IV through the spinning ring 1 in Fig. 3. In Fig. 4, the forces acting on the ring traveler are shown, namely the centrifugal force F due to the mass of the ring traveler, the component of the ring plane resulting thread force R, the normal force N from the spinning ring 1 on the ring traveler 2, which comes from the surface pressure between the ring traveler 2 and the spinning ring 1 below point A, and the supporting force S, which in the partial running surface 13 'of the spinning ring 1 on the corresponding lot of Runner is transmitted. The contact zone between the spinning ring 1 and the ring traveler 2 is shown by the dashed arrow line Z.

In Fig. 5 ist mit ausgezogenen Linien der Kräfteplan für die den Ringläufer 2 im Gleichgewicht haltenden Kräfte eingezeichnet, und zwar in ausgezogenen Linien für die Verhältnisse in einer Ringspinnmaschine gemäss der Erfindung und in gestrichelten Linien für eine vergleichbare Ringspinnmaschine nach dem Stand der Technik, wie sie beispielsweise durch die eingangs erwähnte US-PS 3 159 963 repräsentiert wird. Die Fliehkraft F' ist wesentlich grösser als die Fliehkraft F bei einer Ausführung gemäss der Erfindung, da der äussere Läuferschenkel 21 nach dem Stand der Technik wesentlich länger als jener gemäss der Erfindung ist. Die Komponenten R und R' der resultierenden Fadenkräfte in der Schnittebene werden als gleich gross angenommen. Die Normalkraft N bildet mit der Fliehkraft in einer bevorzugten Ausführung einen Winkel α= 33°, während der entsprechende Winkel, aus dem Kräfteplan in gestrichelten Linien zu ersehen, wesentlich grösser ist, beispielsweise 38° gemäss der Neigung der inneren Lauffläche des Spinnringes in der eingangs erwähnten US-Patentschrift. Der Betrag der Normalkräfte N bzw. N' ergibt sich aus der Annahme, dass die Stützkräfte S bzw. S' für beide betrachtete Fälle unter einem gleichen bestimmten Winkel verlaufen und den Kräfteplan zum Ursprung der Fliehkraft F bzw. F' hin schliessen. Aus dem Vergleich beider Kräftepläne in Fig. 5 ist zu ersehen, dass insbesondere die Stützkraft S' nach dem Stand der Technik wesentlich grösser ausfällt als die Stützkraft S bei einem Ausführungsbeispiel gemäss der vorliegenden Erfindung. Daraus ist zu schliessen, dass insbesondere die durch die Stützkraft S gemäss der Erfindung hervorgerufene Abnutzung bei der Teillauffläche 13' am Ringläufer 2 und am Spinnring 1 bei der Konstellation gemäss der Erfindung wesentlich kleiner sein wird als bei herkömmlichen Ring-Läufer-Kombinationen. Dies erklärt auch die Tatsache, dass bei der Ausführung gemäss der Erfindung wesentlich höhere Spinngeschwindigkeiten bei besserer Garnqualität und geringerem Verschleiss am Spinnring und Ringläufer erzielt werden.In Fig. 5, the line of forces for the forces keeping the ring traveler 2 in equilibrium is drawn in solid lines, namely in solid lines for the conditions in a ring spinning machine according to the invention and in dashed lines for a comparable ring spinning machine according to the prior art, such as it is represented, for example, by the aforementioned US Pat. No. 3,159,963. The centrifugal force F 'is considerably greater than the centrifugal force F in an embodiment according to the invention, since the outer rotor leg 21 according to the prior art is considerably longer than that according to the invention. The components R and R 'of the resulting thread forces in the cutting plane are assumed to be the same size. In a preferred embodiment, the normal force N forms an angle α = 33 ° with the centrifugal force, while the corresponding angle, which can be seen from the force map in dashed lines, is considerably larger, for example 38 ° according to the inclination of the inner tread of the spinning ring in the US patent mentioned at the beginning. The magnitude of the normal forces N or N 'results from the assumption that the supporting forces S or S' run at the same specific angle for both cases under consideration and close the force plan to the origin of the centrifugal force F or F '. It can be seen from the comparison of the two force plans in FIG. 5 that, in particular, the supporting force S 'according to the prior art turns out to be significantly greater than the supporting force S in an exemplary embodiment according to the present invention. It can be concluded from this that, in particular, the wear caused by the supporting force S according to the invention in the partial running surface 13 'on the ring traveler 2 and on the spinning ring 1 in the constellation according to the invention will be significantly smaller than in conventional ring traveler combinations. This also explains the fact that in the embodiment according to the invention, significantly higher spinning speeds with better yarn quality and less wear on the spinning ring and ring traveler are achieved.

Claims (5)

  1. A ring spinning machine with spinning rings (1) in form of so-called oblique flanged rings, the oblique flanges (11) of which rest between a basic section (14) of the spinning ring resting on the ring frame and the running section (12) of the spinning ring on which the ring traveller (2) rotates, the running section having an arch (12') which secures the position of the ring traveller (2), whereby the dimensions of the basic section (14) and the running section (12) are selected such-like that the spinning ring is tapered from the basic section (14) to the running section (12), so that the oblique flange is similar to a circular truncated cone and that the height of the arch (12') in the meridian cross section of the spinning ring exceeds the thickness of the arch (12') by not more than half, whereby the height of the arch (12') is measured parallel to the generatrix of the circular cone and the thickness laterally thereto, characterized in that the thickness of the arch (12') lies between 2.0 and 2.6 mm and its height between 2.2 and 2.8 mm, and that the radius (R1) is, on its inner side, at least 1 mm on the smallest diameter (D) of the spinning ring.
  2. A ring spinning machine as claimed in claim 1, characterized in that the radius (R2) of the running area (13) as measured in the meridian cross section on the inner side of the running section (12) of the spinning ring (1) is not more than 30 mm.
  3. A ring spinning machine as claimed in one of the preceding claims, characterized in that the running area (13) on the inner side of the spinning ring comprises in the area of radius (R2) a mean inclination of not more than 35° with regard to the perpendicular.
  4. A ring spinning machine as claimed in one of the preceding claims, characterized in that the inner radius (R3) on the ring traveller (2) allocated to radius (R1) is 1.2 times the value of R1.
  5. A ring spinning machine as claimed in one of the preceding claims, characterized in that the inner diameter (D) of a spinning ring is between 36 mm and 40 mm.
EP91112773A 1990-05-29 1991-07-30 Ring spinning machine Expired - Lifetime EP0528056B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1805/90A CH681631A5 (en) 1990-05-29 1990-05-29

Publications (2)

Publication Number Publication Date
EP0528056A1 EP0528056A1 (en) 1993-02-24
EP0528056B1 true EP0528056B1 (en) 1995-10-18

Family

ID=4219015

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91112773A Expired - Lifetime EP0528056B1 (en) 1990-05-29 1991-07-30 Ring spinning machine

Country Status (8)

Country Link
US (1) US5331797A (en)
EP (1) EP0528056B1 (en)
JP (1) JP3187070B2 (en)
CN (1) CN1030781C (en)
CH (1) CH681631A5 (en)
CZ (1) CZ281916B6 (en)
DE (1) DE59106740D1 (en)
PT (1) PT97777B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH688155A5 (en) * 1994-01-17 1997-05-30 Rieter Ag Maschf Ring spinning machine.
EP0690158A1 (en) * 1994-06-30 1996-01-03 Maschinenfabrik Rieter Ag Ring spinning machine with a ring having an oblique flange
CH691814A5 (en) * 1994-06-30 2001-10-31 Rieter Ag Maschf Ring spinning machine for consolidated yarn.
JP3530917B2 (en) * 1996-05-16 2004-05-24 日邦産業株式会社 Spinning ring
DE19637473A1 (en) * 1996-09-13 1998-03-19 Rieter Ag Maschf Ring spinning machine with T section rings
DE102015013617A1 (en) * 2015-10-20 2017-04-20 Saurer Germany Gmbh & Co. Kg Ring spinning machine with a sensor for monitoring a thread and method for operating the sensor
WO2020217255A1 (en) * 2019-04-22 2020-10-29 Jothimurugan Amirthalingam Thread guiding element for ring spinning machines

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US598200A (en) * 1898-02-01 John c
US504997A (en) * 1893-09-12 Island
US1604929A (en) * 1926-02-10 1926-10-26 Draper Corp Spinning ring and traveler
US2132260A (en) * 1937-04-10 1938-10-04 Herr Mfg Co Inc Spinning ring and traveler therefor
US2132261A (en) * 1937-05-28 1938-10-04 Herr Mfg Co Inc Spinning ring and traveler therefor
DE1284338B (en) * 1962-10-19 1968-11-28 Vnii Tekstilnogo I Ljogkogo Ma Twisting device for spinning and twisting machines
US3159963A (en) * 1962-10-19 1964-12-08 Zakharov Grigory Nickolajevich Ring for spinning and twisting frames and traveller for the same
US3323300A (en) * 1965-03-10 1967-06-06 Maremont Corp Twisting ring
DE1685961A1 (en) * 1967-11-10 1971-12-30 Reiners & Fuerst Ring for ring spinning or ring twisting machines and associated ring traveler
DE2108225A1 (en) * 1971-02-20 1972-08-31 Chr. Mann, Maschinenfabrik, 7890 Waldshut Ring runner for spinning or twisting machines - preventing vibration on ring and facilitating yarn insertion
GB1577151A (en) * 1978-05-18 1980-10-22 Yarn Aid Engs Ltd Method of refurbishing a used spinning ring and a spinning ring refurbished by the method
DE7929378U1 (en) * 1978-11-06 1980-02-28 Rieter Deutschland Gmbh, 7410 Reutlingen Spinning ring with inner ring

Also Published As

Publication number Publication date
CN1071210A (en) 1993-04-21
JP3187070B2 (en) 2001-07-11
CH681631A5 (en) 1993-04-30
JPH04228626A (en) 1992-08-18
US5331797A (en) 1994-07-26
CN1030781C (en) 1996-01-24
DE59106740D1 (en) 1995-11-23
PT97777A (en) 1993-06-30
PT97777B (en) 1998-12-31
EP0528056A1 (en) 1993-02-24
CS129391A3 (en) 1992-01-15
CZ281916B6 (en) 1997-04-16

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