EP2347044A1 - Friction disc - Google Patents

Friction disc

Info

Publication number
EP2347044A1
EP2347044A1 EP09747823A EP09747823A EP2347044A1 EP 2347044 A1 EP2347044 A1 EP 2347044A1 EP 09747823 A EP09747823 A EP 09747823A EP 09747823 A EP09747823 A EP 09747823A EP 2347044 A1 EP2347044 A1 EP 2347044A1
Authority
EP
European Patent Office
Prior art keywords
friction
grooves
groove
disk
friction disk
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09747823A
Other languages
German (de)
French (fr)
Other versions
EP2347044B1 (en
Inventor
Gustave Akakpo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ceramtec GmbH
Original Assignee
Ceramtec GmbH
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Filing date
Publication date
Application filed by Ceramtec GmbH filed Critical Ceramtec GmbH
Publication of EP2347044A1 publication Critical patent/EP2347044A1/en
Application granted granted Critical
Publication of EP2347044B1 publication Critical patent/EP2347044B1/en
Active legal-status Critical Current
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/08—Rollers or other friction causing elements
    • D02G1/082—Rollers or other friction causing elements with the periphery of at least one disc
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist

Definitions

  • the invention relates to a friction disk for use in a false twist device for false twist generation on a running multifilament yarn, in particular synthetic yarn, in which the yarn runs over the friction surface of the friction disk.
  • False twist devices are generally used to generate the false twist, in which case the thread is drawn over the peripheral surfaces, the friction surfaces, and rotating friction discs which overlap. The speeds of the friction discs can reach up to 14,000 rpm.
  • Such false twist devices are known for example from DE 27 08 204 B.
  • the friction discs may consist of different materials, wherein, depending on the material and roughness of the friction surface, the threads are subjected to different levels of stress.
  • Friction discs made of a hard material such as ceramic or metal usually produce abrasion and therefore stress the threads stronger than, for example, soft friction discs made of polyurethane, which experience through the threads wear. While the friction discs made of hard materials can usually last well over seven years, the polyurethane friction discs need to be replaced after about 8 to 9 months.
  • friction discs made of hard materials have the disadvantage that the surface structure of the peripheral surface, the friction surface, is increasingly smeared and smoothed by the thread abrasion, which is called glacing effect.
  • the object of the invention is to introduce a friction disk which is as gentle on the thread as a friction disk made of soft material and nevertheless has a service life such as a friction disk made of a hard material.
  • the friction disk has at least one recess which reduces the friction surface on its friction surface
  • the contact surface of the disk with the yarn is interrupted and divided into several sections.
  • the abrasion and thus the risk of blending the entire friction surface, the Glacing effect are completely avoided or at least significantly reduced because the abrasion no longer, as usual, at the edges, at the transitions from the friction surface to the plan top. and bases of the friction disk settles.
  • the friction surface is interrupted and thereby form each two new transitions, whereby the discontinuation of the abrasion is distributed to more places. This in turn contributes significantly to the reduction of yarn breaks.
  • the recess is a groove.
  • the groove is circumferentially formed on the peripheral surface of the friction disk, i. the friction disk has at least one groove extending over the entire circumference of the friction disk. But there may also be several circumferential grooves. In one embodiment, the
  • Friction surface two grooves on.
  • the grooves can be arranged at equal distances from the edge of the friction disk and from each other.
  • the grooves can be the same.
  • the grooves can be endless.
  • the grooved friction discs according to the invention have the same width as the conventional friction discs. By the grooves but the looped by the thread surface, the friction surface is reduced. For example, if the friction disk has a width of 9 mm, the actual friction surface for two grooves of 1.5 mm width reduces to 6 mm, although the theoretically wrapped surface still remains 9 mm. For this reason, the friction discs according to the invention are particularly suitable for microfilaments and for high texturing speeds, which can be up to 1000 m / min and higher.
  • the cross section of the grooves may be, for example, V-shaped, U-shaped or rectangular.
  • a different arrangement of the grooves, their width or depth, may be provided depending on the yarn path and thread material.
  • the contact surface of the disc is interrupted with the thread and divided into several sections.
  • the abrasion and thus the risk of blending the entire friction surface, the Glacing effect are inventively completely avoided or at least considerably reduced, because the abrasion no longer, as usual, at the edges, at the transitions from the friction surface to the plane upper - and undersides of the friction disc settles.
  • the friction surface is interrupted and thereby form each two new transitions, whereby the discontinuation of the abrasion is distributed over more places. This in turn contributes significantly to the reduction of yarn breaks.
  • a uniform yarn path is achieved with a constant yarn tension, such as For example, in the false twist generation on a polyamide yarn, PA6 78/18 black, and a yarn of polybutylene terephthalate, PBT 42/24 glossy, has been demonstrated.
  • the yarn tension is in front of and behind a friction disk according to the invention at the same or somewhat lower level as in a polyurethane disk and remains constant even after a long service life.
  • the material of the friction disc and its width, the number of grooves, their width and their depth can be adjusted.
  • transitions of the grooves to the friction surface are rounded so that the thread runs over no sharp edges.
  • the thread run is also the rounding radius of the friction surface to the flat surfaces, the side surfaces, the friction disc.
  • the surface roughness of the friction surface is, matched to the thread material, preferably between 0.1 .mu.m and 2.0 .mu.m, preferably at 0.85 .mu.m.
  • the material is an oxide ceramic, such as alumina.
  • the material may also be a metal or a plastic.
  • FIG. 1 shows a view of the circumference of a friction disk according to the invention and Figure 2 shows a section of the contour of the peripheral surface in an enlarged scale.
  • FIG. 1 shows a friction disk 1 according to the invention on an enlarged scale, partly in section.
  • the diameter 2 is 52 mm and the width 3 is 9 mm.
  • the peripheral surface, the friction surface 4, is rounded, in the present exemplary embodiment with a radius 5 of approximately 6 mm (FIG. 2). The caused by this radius wrap angle allows a gentle threadline.
  • the friction disk 1 has two grooves 6 on the friction surface 4.
  • FIG. 2 shows a section of the friction surface 4 in an even larger scale.
  • the grooves 6 are both gleichgeartet and have a width 7 of about 1, 5 mm, a depth of about 3 mm and an opening angle 9 of the side walls 10 to the friction surface 4 out of 10 degrees.
  • the center distance 11 of the grooves 6 from each other is 4 mm and their center distance 12 from the edge 13 2.5 mm.
  • the transitions 14 of the side walls 10 of the grooves 6 to the friction surface 4 are rounded off.
  • the radius of these transitions 14 in a preferred embodiment is equal to or less than 0.3 mm.
  • 0.2 mm have been found for the radius of the transitions 14 to be particularly advantageous.
  • the surface roughness Ra of the friction surface in In one embodiment, the area of the yarn path is preferably 0.85 ⁇ 0.2 ⁇ m.
  • Friction disk are suitable, are oxide ceramics such as zirconia, silica, or nitride ceramics such as silicon nitride or SiAIONe.
  • oxide ceramics such as zirconia, silica, or nitride ceramics such as silicon nitride or SiAIONe.
  • nitride ceramics such as silicon nitride or SiAIONe.
  • the friction surfaces can be protected by hard material deposits of ceramic or diamond against wear.
  • Friction surface of a friction disk to introduce grooves, but can actually apply to all materials suitable for friction discs.
  • the thread tension T1 before the false twist device, could be reduced by 10% to 20% compared to conventional friction discs.
  • the friction groove according to the invention with two grooves is almost insensitive to changes in the D / Y ratio, the ratio of wheel peripheral speed to yarn speed.
  • groove or grooves are that they run helically, such as a thread, on the peripheral surface of the friction disk.
  • the course of the groove or grooves may be identical to the direction of rotation of the friction disc or opposite her.
  • the grooves can be catchy or more continuous (parallel to each other). Beginning and end of the groove or grooves can, seen in the axial direction, lie one above the other or from each other.
  • a thread of a groove may have less than one turn, one turn or more than one turn.

Landscapes

  • 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)

Abstract

Friction discs made from a hard material such as ceramic or metal as a rule generate wear and thus damage the threads more than, for example, soft friction discs made from polyurethane which undergo wear by the threads. Whilst friction discs made of hard material can be used as a rule for more than seven years, friction discs made from polyurethane must be changed after just 8 to 9 months. According to the invention, friction discs (1) thus have at least one friction area reducing groove on the friction surface (4) thereof.

Description

Friktionsscheibe friction disc
Die Erfindung betrifft eine Friktionsscheibe für den Einsatz in einer Falschdrallvorrichtung zur Falschdrallerzeugung an einem laufenden multifilen Faden, insbesondere synthetischen Faden, bei der der Faden über die Friktionsfläche der Friktionsscheibe läuft.The invention relates to a friction disk for use in a false twist device for false twist generation on a running multifilament yarn, in particular synthetic yarn, in which the yarn runs over the friction surface of the friction disk.
Es ist bekannt, bei der Herstellung von gekräuselten synthetischen Fäden an den multifilen Fäden durch Friktion einen Falschdrall zu erzeugen, welcher in einer Texturierzone durch eine thermische Behandlung in den Filamenten der Fäden fixiert wird. Zur Erzeugung des Falschdralls werden in der Regel Falschdrallvorrichtungen eingesetzt, bei welchen der Faden über die Umfangsflächen, die Friktionsflächen, rotierender Friktionsscheiben gezogen wird, die sich überlappen. Die Drehzahlen der Friktionsscheiben können bis zu 14.000 U/min erreichen. Derartige Falschdrallvorrichtungen sind beispielsweise aus der DE 27 08 204 B bekannt.It is known, in the production of crimped synthetic threads on the multifilament threads by friction, to produce a false twist which is fixed in a texturing zone by a thermal treatment in the filaments of the threads. False twist devices are generally used to generate the false twist, in which case the thread is drawn over the peripheral surfaces, the friction surfaces, and rotating friction discs which overlap. The speeds of the friction discs can reach up to 14,000 rpm. Such false twist devices are known for example from DE 27 08 204 B.
Die Friktionsscheiben können aus unterschiedlichen Werkstoffen bestehen, wobei, in Abhängigkeit vom Werkstoff und Rauheit der Friktionsfläche, die Fäden unterschiedlich stark belastet werden. Friktionsscheiben aus einem harten Werkstoff wie Keramik oder Metall erzeugen in der Regel Abrieb und beanspruchen deshalb die Fäden stärker als beispielsweise weiche Friktionsscheiben aus Polyurethan, die durch die Fäden eine Abnutzung erfahren. Während die Friktionsscheiben aus harten Werkstoffen in der Regel weit über sieben Jahre halten können, müssen die Friktionsscheiben aus Polyurethan bereits nach etwa 8 bis 9 Monaten ausgetauscht werden. Friktionsscheiben aus harten Werkstoffen weisen allerdings den Nachteil auf, dass durch den Fadenabrieb die Oberflächenstruktur der Umfangsfläche, der Friktionsfläche, zunehmend zugeschmiert und geglättet wird, was Glacing-EffeKt genannt wird. Aufgabe der Erfindung ist es, eine Friktionsscheibe vorzustellen, die so fadenschonend ist wie eine Friktionsscheibe aus weichem Werkstoff und trotzdem eine Lebensdauer aufweist wie eine Friktionsscheibe aus einem harten Werkstoff.The friction discs may consist of different materials, wherein, depending on the material and roughness of the friction surface, the threads are subjected to different levels of stress. Friction discs made of a hard material such as ceramic or metal usually produce abrasion and therefore stress the threads stronger than, for example, soft friction discs made of polyurethane, which experience through the threads wear. While the friction discs made of hard materials can usually last well over seven years, the polyurethane friction discs need to be replaced after about 8 to 9 months. However, friction discs made of hard materials have the disadvantage that the surface structure of the peripheral surface, the friction surface, is increasingly smeared and smoothed by the thread abrasion, which is called glacing effect. The object of the invention is to introduce a friction disk which is as gentle on the thread as a friction disk made of soft material and nevertheless has a service life such as a friction disk made of a hard material.
Die Lösung der Aufgabe erfolgt mit Hilfe der kennzeichnenden Merkmale des ersten Anspruchs. Vorteilhafte Ausgestaltungen der Erfindung werden in den abhängigen Ansprüchen beansprucht.The object is achieved by means of the characterizing features of the first claim. Advantageous embodiments of the invention are claimed in the dependent claims.
Dadurch, dass die Friktionsscheibe auf ihrer Friktionsfläche mindestens eine die Friktionsfläche vermindernde Ausnehmung aufweist, wird die Kontaktfläche der Scheibe mit dem Faden unterbrochen und in mehrere Abschnitte aufgeteilt. Der Abrieb und damit die Gefahr des Zuschmierens der gesamten Friktionsfläche, der Glacing-Effekt, werden gänzlich vermieden oder zumindest erheblich herabgesetzt, weil sich der Abrieb nicht mehr, wie üblich, an den Rändern, an den Übergängen von der Friktionsfläche zu den planen Ober- und Unterseiten der Friktionsscheibe absetzt. Durch jede Ausnehmung wird die Friktionsfläche unterbrochen und es bilden sich dadurch jeweils zwei neue Übergänge, wodurch das Absetzen des Abriebs auf mehr Stellen verteilt wird. Das wiederum trägt wesentlich zur Herabsetzung von Fadenbrüchen bei. Vorteilhaft sindDue to the fact that the friction disk has at least one recess which reduces the friction surface on its friction surface, the contact surface of the disk with the yarn is interrupted and divided into several sections. The abrasion and thus the risk of blending the entire friction surface, the Glacing effect are completely avoided or at least significantly reduced because the abrasion no longer, as usual, at the edges, at the transitions from the friction surface to the plan top. and bases of the friction disk settles. Through each recess, the friction surface is interrupted and thereby form each two new transitions, whereby the discontinuation of the abrasion is distributed to more places. This in turn contributes significantly to the reduction of yarn breaks. Are advantageous
In einer bevorzugten Ausführungsform ist die Ausnehmung eine Nut. Bevorzugt ist die Nut auf der Umfangsfläche der Friktionsscheibe umlaufend ausgebildet, d.h. die Friktionsscheibe weist mindestens eine sich über den gesamten Umfang der Friktionsscheibe hinziehende Nut auf. Es können aber auch mehrere umlaufende Nuten vorhanden sein. In einer Ausführungsform weist dieIn a preferred embodiment, the recess is a groove. Preferably, the groove is circumferentially formed on the peripheral surface of the friction disk, i. the friction disk has at least one groove extending over the entire circumference of the friction disk. But there may also be several circumferential grooves. In one embodiment, the
Friktionsfläche zwei Nuten auf. Die Nuten können in gleichen Abständen vom Rand der Friktionsscheibe und voneinander angeordnet sein. Eine andereFriction surface two grooves on. The grooves can be arranged at equal distances from the edge of the friction disk and from each other. Another
Abstandsanordnung richtet sich nach der Anzahl der Nuten, deren Tiefe undDistance arrangement depends on the number of grooves, their depth and
Breite. Die Nuten können gleichgeartet sein. Die Nuten können endlos sein. Die erfindungsgemäß mit Nuten versehenen Friktionsscheiben haben dieselbe Breite wie die herkömmlichen Friktionsscheiben. Durch die Nuten wird aber die vom Faden umschlungene Fläche, die Friktionsfläche, vermindert. Hat die Friktionsscheibe beispielsweise eine Breite von 9 mm, verringert sich die tatsächliche Friktionsfläche bei zwei Nuten mit 1 ,5 mm Breite auf 6 mm, obwohl die theoretisch umschlungene Fläche weiterhin 9 mm beträgt. Aus diesem Grund eignen sich die erfindungsgemäßen Friktionsscheiben besonders für Mikrofilamente und für hohe Texturiergeschwindigkeiten, die bis zu 1000 m/min und höher liegen können.Width. The grooves can be the same. The grooves can be endless. The grooved friction discs according to the invention have the same width as the conventional friction discs. By the grooves but the looped by the thread surface, the friction surface is reduced. For example, if the friction disk has a width of 9 mm, the actual friction surface for two grooves of 1.5 mm width reduces to 6 mm, although the theoretically wrapped surface still remains 9 mm. For this reason, the friction discs according to the invention are particularly suitable for microfilaments and for high texturing speeds, which can be up to 1000 m / min and higher.
Der Querschnitt der Nuten kann beispielsweise V-förmig, U-förmig oder rechteckig sein. Eine unterschiedliche Anordnung der Nuten, deren Breite oder Tiefe, kann abhängig vom Fadenlauf und Fadenmaterial vorgesehen sein.The cross section of the grooves may be, for example, V-shaped, U-shaped or rectangular. A different arrangement of the grooves, their width or depth, may be provided depending on the yarn path and thread material.
Durch die Nut oder Nuten wird die Kontaktfläche der Scheibe mit dem Faden unterbrochen und in mehrere Abschnitte aufgeteilt. Der Abrieb und damit die Gefahr des Zuschmierens der gesamten Friktionsfläche, der Glacing-Effekt, werden erfindungsgemäß gänzlich vermieden oder zumindest erheblich herabgesetzt, weil sich der Abrieb nicht mehr, wie üblich, an den Rändern, an den Übergängen von der Friktionsfläche zu den planen Ober- und Unterseiten der Friktionsscheibe absetzt. Durch jede Nut wird die Friktionsfläche unterbrochen und es bilden sich dadurch jeweils zwei neue Übergänge, wodurch das Absetzen des Abriebs auf mehr Stellen verteilt wird. Das wiederum trägt wesentlich zur Herabsetzung von Fadenbrüchen bei.Through the groove or grooves, the contact surface of the disc is interrupted with the thread and divided into several sections. The abrasion and thus the risk of blending the entire friction surface, the Glacing effect are inventively completely avoided or at least considerably reduced, because the abrasion no longer, as usual, at the edges, at the transitions from the friction surface to the plane upper - and undersides of the friction disc settles. Through each groove, the friction surface is interrupted and thereby form each two new transitions, whereby the discontinuation of the abrasion is distributed over more places. This in turn contributes significantly to the reduction of yarn breaks.
Durch die Nuten wird der Rutscheffekt oder Gripverlust gegenüber herkömmlichen Friktionsscheiben merklich herabgesetzt.By the grooves of the sliding effect or Gripverlust compared to conventional friction discs is significantly reduced.
Durch die erfindungsgemäße Friktionsscheibe wird außerdem ein gleichmäßiger Fadenlauf mit einer gleich bleibenden Fadenspannung erreicht, wie beispielsweise bei der Falschdrallerzeugung an einem Polyamid-Garn, PA6 78/18 schwarz, und einem Garn aus Polybutylen-Terephthalat, PBT 42/24 glänzend, nachgewiesen wurde. Die Fadenspannung liegt vor und hinter einer erfindungsgemäßen Friktionsscheibe auf dem gleichen oder etwas niedrigeren Niveau wie bei einer Scheibe aus Polyurethan und bleibt auch nach langer Betriebsdauer konstant.Through the friction disk according to the invention also a uniform yarn path is achieved with a constant yarn tension, such as For example, in the false twist generation on a polyamide yarn, PA6 78/18 black, and a yarn of polybutylene terephthalate, PBT 42/24 glossy, has been demonstrated. The yarn tension is in front of and behind a friction disk according to the invention at the same or somewhat lower level as in a polyurethane disk and remains constant even after a long service life.
In Abstimmung auf das Fadenmaterial, den Werkstoff der Friktionsscheibe und deren Breite kann die Anzahl der Nuten, deren Breite und deren Tiefe abgestimmt werden.In coordination with the thread material, the material of the friction disc and its width, the number of grooves, their width and their depth can be adjusted.
Die Übergänge der Nuten zur Friktionsfläche sind so abgerundet, dass der Faden über keine scharfen Kanten läuft.The transitions of the grooves to the friction surface are rounded so that the thread runs over no sharp edges.
Dem Fadenlauf angepasst ist auch der Abrundungsradius der Friktionsfläche zu den Planflächen, den Seitenflächen, der Friktionsscheibe.The thread run is also the rounding radius of the friction surface to the flat surfaces, the side surfaces, the friction disc.
Die Oberflächenrauheit der Friktionsfläche liegt, abgestimmt auf das Fadenmaterial, vorzugsweise zwischen 0,1 μm und 2,0 μm, vorzugsweise bei 0,85 μm.The surface roughness of the friction surface is, matched to the thread material, preferably between 0.1 .mu.m and 2.0 .mu.m, preferably at 0.85 .mu.m.
Bevorzugt ist der Werkstoff eine Oxidkeramik, wie zum Beispiel Aluminiumoxid.Preferably, the material is an oxide ceramic, such as alumina.
Der Werkstoff kann jedoch auch ein Metall oder ein Kunststoff sein.However, the material may also be a metal or a plastic.
An Hand eines Ausführungsbeispiels wird die Erfindung näher erläutert. Es zeigen:With reference to an embodiment of the invention will be explained in more detail. Show it:
Figur 1 eine Ansicht auf den Umfang einer erfindungsgemäßen Friktionsscheibe und Figur 2 einen Ausschnitt der Kontur der Umfangsfläche im vergrößerten Maßstab.1 shows a view of the circumference of a friction disk according to the invention and Figure 2 shows a section of the contour of the peripheral surface in an enlarged scale.
In Figur 1 ist eine erfindungsgemäße Friktionsscheibe 1 in vergrößertem Maßstab, teilgeschnitten, dargestellt. Der Durchmesser 2 beträgt 52 mm und die Breite 3 beträgt 9 mm. Die Umfangsfläche, die Friktionsfläche 4, ist abgerundet, im vorliegenden Ausführungsbeispiel mit einem Radius 5 von etwa 6 mm (Fig. 2). Der durch diesen Radius bedingte Umschlingungswinkel ermöglicht einen schonenden Fadenlauf. Im vorliegenden Ausführungsbeispiel hat die Friktionsscheibe 1 zwei Nuten 6 auf der Friktionsfläche 4.FIG. 1 shows a friction disk 1 according to the invention on an enlarged scale, partly in section. The diameter 2 is 52 mm and the width 3 is 9 mm. The peripheral surface, the friction surface 4, is rounded, in the present exemplary embodiment with a radius 5 of approximately 6 mm (FIG. 2). The caused by this radius wrap angle allows a gentle threadline. In the present exemplary embodiment, the friction disk 1 has two grooves 6 on the friction surface 4.
Die Figur 2 zeigt einen Ausschnitt der Friktionsfläche 4 in einem noch einmal vergrößerten Maßstab. Die Nuten 6 sind beide gleichgeartet und haben eine Breite 7 von etwa 1 ,5 mm, eine Tiefe von etwa 3 mm und einen Öffnungswinkel 9 der Seitenwände 10 zur Friktionsfläche 4 hin von 10 Grad. Der Mitten-Abstand 11 der Nuten 6 voneinander beträgt 4 mm und ihr Mitten-Abstand 12 vom Rand 13 2,5 mm. Wie aus der Figur 2 weiter ersichtlich, sind die Übergänge 14 der Seitenwände 10 der Nuten 6 zur Friktionsfläche 4 abgerundet. Der Radius dieser Übergänge 14 beträgt in einer bevorzugten Ausführungsform gleich oder weniger als 0,3 mm. Hierbei haben sich 0,2 mm für den Radius der Übergänge 14 als besonders vorteilhaft herausgestellt.FIG. 2 shows a section of the friction surface 4 in an even larger scale. The grooves 6 are both gleichgeartet and have a width 7 of about 1, 5 mm, a depth of about 3 mm and an opening angle 9 of the side walls 10 to the friction surface 4 out of 10 degrees. The center distance 11 of the grooves 6 from each other is 4 mm and their center distance 12 from the edge 13 2.5 mm. As can also be seen from FIG. 2, the transitions 14 of the side walls 10 of the grooves 6 to the friction surface 4 are rounded off. The radius of these transitions 14 in a preferred embodiment is equal to or less than 0.3 mm. Here, 0.2 mm have been found for the radius of the transitions 14 to be particularly advantageous.
Der Werkstoff der Friktionsscheibe des vorliegenden Ausführungsbeispiels ist gesintertes Aluminiumoxid mit einer Reinheit größer 99,7 %. einer Dichte gleich oder größer 3,92 g/cm, einer Porosität gleich oder kleiner 2 %, einer Wasseraufnahme gleich oder kleiner 0,01 %, einer Vickershärte (P=2N) gleich oder größer 22000 N/mm2, einer mittleren Korngröße gleich oder kleiner 10 μm, einer mittleren Biegefestigkeit gleich oder größer 320 N/mm2, einer Druckfestigkeit gleich oder größer 4000 N/mm2 und einer Zugfestigkeit gleich oder größer 160 N/mm2. Die Oberflächenrauhigkeit Ra der Friktionsfläche im Bereich des Fadenlaufs liegt in einer Ausführungsform bevorzugt bei 0,85 ± 0,2 μm.The material of the friction disk of the present embodiment is sintered alumina having a purity greater than 99.7%. a density equal to or greater than 3.92 g / cm, a porosity equal to or less than 2%, a water absorption equal to or less than 0.01%, a Vickers hardness (P = 2N) equal to or greater than 22000 N / mm 2 , equal to an average grain size or less than 10 μm, an average bending strength equal to or greater than 320 N / mm 2 , a compressive strength equal to or greater than 4000 N / mm 2 and a tensile strength equal to or greater than 160 N / mm 2 . The surface roughness Ra of the friction surface in In one embodiment, the area of the yarn path is preferably 0.85 ± 0.2 μm.
Weitere Werkstoffe, die beispielsweise für die erfindungsgemäßeOther materials, for example, for the inventive
Friktionsscheibe geeignet sind, sind Oxidkeramiken wie Zirkonoxid, Siliziumoxid, oder Nitridkeramiken wie Siliziumnitrid oder SiAIONe. Bei metallischenFriction disk are suitable, are oxide ceramics such as zirconia, silica, or nitride ceramics such as silicon nitride or SiAIONe. For metallic
Werkstoffen, beispielsweise aus Molybdän- oder Chrom-Nickel-Stählen, können die Friktionsflächen durch Hartstoffeinlagerungen aus Keramik oder Diamant gegen Verschleiß geschützt werden. Die erfindungsgemäße Idee, in dieMaterials, such as molybdenum or chromium-nickel steels, the friction surfaces can be protected by hard material deposits of ceramic or diamond against wear. The inventive idea, in the
Friktionsfläche einer Friktionsscheibe Nuten einzubringen, lässt sich aber eigentlich bei allen für Friktionsscheiben geeigneten Werkstoffen anwenden.Friction surface of a friction disk to introduce grooves, but can actually apply to all materials suitable for friction discs.
Die Fadenspannung, die bei den üblichen Drehzahlen vor und hinter der erfindungsgemäßen Friktionsscheibe gemessen wurde, lag mit 5 cN bis 30 cN wesentlich unter der, die an herkömmlichen Friktionsscheiben aus demselben Werkstoff, aber ohne Nuten, gemessenen wurde und die zwischen 20 cN und 100 cN, oder mehr, variieren kann. Die Fadenspannung T1 , vor der Falschdrallvorrichtung, konnte gegenüber herkömmlichen Friktionsscheiben um 10 % bis 20 % gesenkt werden.The yarn tension measured at the usual speeds before and after the friction disk according to the invention, at 5 cN to 30 cN, was significantly lower than that measured on conventional friction disks of the same material but without grooves and between 20 cN and 100 cN , or more, may vary. The thread tension T1, before the false twist device, could be reduced by 10% to 20% compared to conventional friction discs.
Die erfindungsgemäße Friktionsscheibe mit zwei Nuten ist nahezu unempfindlich gegenüber Änderungen im D/Y-Verhältnis, dem Verhältnis von Scheibenumfangsgeschwindigkeit zu Garngeschwindigkeit.The friction groove according to the invention with two grooves is almost insensitive to changes in the D / Y ratio, the ratio of wheel peripheral speed to yarn speed.
Weitere Varianten der Nut oder Nuten bestehen darin, dass sie schraubenlinienförmig, wie eine Gewinde, auf der Umfangsfläche der Friktionsscheibe verlaufen. Der Verlauf der Nut oder Nuten kann identisch mit der Drehrichtung der Friktionsscheibe oder ihr entgegengesetzt sein. Die Nuten können eingängig oder mehrgängig (parallel zueinander verlaufend) sein. Anfang und Ende der Nut oder Nuten können, in Achsrichtung gesehen, übereinander oder voneinander verschoben liegen. Ein Gewindegang einer Nut kann weniger als eine Umdrehung, eine Umdrehung oder mehr als eine Umdrehung haben. Other variants of the groove or grooves are that they run helically, such as a thread, on the peripheral surface of the friction disk. The course of the groove or grooves may be identical to the direction of rotation of the friction disc or opposite her. The grooves can be catchy or more continuous (parallel to each other). Beginning and end of the groove or grooves can, seen in the axial direction, lie one above the other or from each other. A thread of a groove may have less than one turn, one turn or more than one turn.

Claims

Patentansprüche claims
1. Friktionsscheibe für den Einsatz in einer Falschdrallvorrichtung zur Falschdrallerzeugung an einem laufenden multifilen Faden, insbesondere synthetischen Faden, bei der der Faden über die Friktionsfläche der Friktionsscheibe läuft, dadurch gekennzeichnet, dass die Friktionsscheibe1. Friction disk for use in a false twist device for false twist generation on a running multifilament yarn, in particular synthetic yarn, in which the yarn runs over the friction surface of the friction disk, characterized in that the friction disk
(1 ) auf ihrer Friktionsfläche (4) mindestens eine die Friktionsfläche (4) vermindernde Ausnehmung aufweist.(1) has on its friction surface (4) at least one of the friction surface (4) reducing recess.
2. Friktionsscheibe nach Anspruch 1 , dadurch gekennzeichnet, dass die Ausnehmung eine Nut (6) ist.2. friction disk according to claim 1, characterized in that the recess is a groove (6).
3. Friktionsscheibe nach Anspruch 1 , dadurch gekennzeichnet, dass die Nut (6) auf der Umfangsfläche der Friktionsscheibe (1 ) umlaufend ausgebildet ist.3. friction disc according to claim 1, characterized in that the groove (6) on the peripheral surface of the friction disc (1) is formed circumferentially.
4. Friktionsscheibe nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Friktionsfläche (4) zwei Nuten (6) aufweist.4. friction disc according to claim 2 or 3, characterized in that the friction surface (4) has two grooves (6).
5. Friktionsscheibe nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Friktionsfläche (4) abgerundet ist.5. friction disk according to one of claims 1 to 4, characterized in that the friction surface (4) is rounded.
6. Friktionsscheibe nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Oberflächenrauhigkeit Ra der Friktionsfläche (4) im Bereich des Fadenlaufs zwischen 0, 1 μm und 2 μm, vorzugsweise bei 0,85 μm liegt.6. friction disk according to one of claims 1 to 5, characterized in that the surface roughness Ra of the friction surface (4) in the region of the yarn path between 0, 1 micron and 2 microns, preferably at 0.85 microns.
7. Friktionsscheibe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Werkstoff der Friktionsscheibe eine Oxidkeramik ist. 7. friction disk according to one of claims 1 to 6, characterized in that the material of the friction disk is an oxide ceramic.
8. Friktionsscheibe nach Anspruch 7, dadurch gekennzeichnet, dass der Werkstoff Aluminiumoxid ist.8. friction disk according to claim 7, characterized in that the material is alumina.
9. Friktionsscheibe nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass der Werkstoff ein Metall oder ein Kunststoff ist.9. friction disc according to one of claims 1 to 6, characterized in that the material is a metal or a plastic.
10. Friktionsscheibe nach einem der Ansprüche 2 bis 9, dadurch gekennzeichnet, dass die Nut oder die Nuten schraubenlinienförmig, wie eine Gewinde, auf der Umfangsfläche der Friktionsscheibe verlaufen.10. friction pulley according to one of claims 2 to 9, characterized in that the groove or grooves helically, such as a thread, extend on the peripheral surface of the friction disc.
11. Friktionsscheibe nach Anspruch 10, dadurch gekennzeichnet, dass der Verlauf der Nut oder der Nuten mit der Drehrichtung der Friktionsscheibe identisch oder ihr entgegengesetzt ist.11. friction disc according to claim 10, characterized in that the course of the groove or grooves with the direction of rotation of the friction disc is identical or opposite.
12. Friktionsscheibe nach Anspruch 10 oder 11 , dadurch gekennzeichnet, dass die Nut oder die Nuten eingängig oder mehrgängig sind.12. Friktionsscheibe according to claim 10 or 11, characterized in that the groove or the grooves are catchy or more continuous.
13. Friktionsscheibe nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass Anfang und Ende der Nut oder der Nuten, in Achsrichtung gesehen, übereinander oder voneinander verschoben liegen.13. friction pulley according to one of claims 10 to 12, characterized in that the beginning and end of the groove or the grooves, seen in the axial direction, are superimposed or shifted from each other.
14. Friktionsscheibe nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass ein Gewindegang einer Nut weniger als eine Umdrehung, eine Umdrehung oder mehr als eine Umdrehung hat. 14. friction disc according to one of claims 10 to 12, characterized in that a thread of a groove has less than one revolution, one revolution or more than one revolution.
EP09747823.4A 2008-11-04 2009-11-03 Friction discs Active EP2347044B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008043439 2008-11-04
DE102009026723 2009-06-04
PCT/EP2009/064536 WO2010052213A1 (en) 2008-11-04 2009-11-03 Friction disc

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EP2347044A1 true EP2347044A1 (en) 2011-07-27
EP2347044B1 EP2347044B1 (en) 2015-01-07

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CN (1) CN102272364B (en)
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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009037221A1 (en) * 2009-08-12 2011-02-17 Emil Bröll GmbH & Co. Friction disk for synthetic multi-filament thread in three-axle friction texturing aggregate, has ring provided with ceramic surface, where mean roughness values of thread-contacting surface of disk is smaller than specific value
CN102839453B (en) * 2012-08-22 2017-04-05 陈子瑜 The device of Single-spindle drive wheel disc false-twist spinning
CN103894368B (en) * 2014-03-14 2016-01-27 泉州天宇化纤织造实业有限公司 A kind of surface attachments cleaning method of scroll tube pottery scratch diskette
DE102015114659A1 (en) * 2015-09-02 2017-03-02 Maschinenfabrik Rieter Ag Support disc with spherical tread
CN109402812A (en) * 2019-01-02 2019-03-01 绍兴华晶科技有限公司 A kind of porous ceramics navel component

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3327463A (en) * 1964-08-27 1967-06-27 Teijin Ltd Method and apparatus for imparting false twist to continuous filaments by frictionalcontact
CH543613A (en) * 1972-04-11 1973-10-31 Heberlein & Co Ag Friction false twist device
DE2444038C3 (en) * 1973-10-01 1980-04-17 Heberlein Maschinenfabrik Ag, Wattwil (Schweiz) Friction false twist device
DE2428514B1 (en) * 1974-06-12 1975-09-18 Kugelfischer G Schaefer & Co Friction disc for the friction drive of high-speed rotating false twist rotary tubes
DE2431101B1 (en) * 1974-06-28 1975-10-16 Ernst Fr. Weinz-Weka Ohg, 6580 Idar- Oberstein Friction element for a false twist device
DE2708204C2 (en) 1977-02-25 1979-04-05 Feldmuehle Ag, 4000 Duesseldorf False twist device
US4129980A (en) * 1978-01-18 1978-12-19 Macfield Texturing, Inc. Friction discs for false-twist head
CN2207393Y (en) * 1994-09-21 1995-09-13 刘桂兰 False stranding device friction disk
JP3329622B2 (en) * 1995-06-08 2002-09-30 京セラ株式会社 Friction disc
JP3564877B2 (en) * 1996-06-11 2004-09-15 村田機械株式会社 Disk for SZ simultaneous false twist
JPH10183432A (en) * 1996-12-20 1998-07-14 Teijin Ltd False-twisting disk
DE102005050068A1 (en) * 2005-10-19 2007-04-26 Saurer Gmbh & Co. Kg friction disc
CN201136929Y (en) * 2007-11-21 2008-10-22 四川福斯表面技术有限公司 False twist friction disk

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010052213A1 *

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EP2347044B1 (en) 2015-01-07
WO2010052213A1 (en) 2010-05-14
DE102009046352A1 (en) 2010-05-06
JP2012507642A (en) 2012-03-29
CN102272364A (en) 2011-12-07
CN102272364B (en) 2015-02-18
JP5669743B2 (en) 2015-02-12

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