EP2189408A2 - Clamping device - Google Patents

Clamping device Download PDF

Info

Publication number
EP2189408A2
EP2189408A2 EP09013733A EP09013733A EP2189408A2 EP 2189408 A2 EP2189408 A2 EP 2189408A2 EP 09013733 A EP09013733 A EP 09013733A EP 09013733 A EP09013733 A EP 09013733A EP 2189408 A2 EP2189408 A2 EP 2189408A2
Authority
EP
European Patent Office
Prior art keywords
clamping device
clamping
clamping element
displaceable
shells
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
EP09013733A
Other languages
German (de)
French (fr)
Other versions
EP2189408A3 (en
EP2189408B1 (en
Inventor
Gottfried Staudenmaier
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Oerlikon Textile Components GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oerlikon Textile Components GmbH filed Critical Oerlikon Textile Components GmbH
Publication of EP2189408A2 publication Critical patent/EP2189408A2/en
Publication of EP2189408A3 publication Critical patent/EP2189408A3/en
Application granted granted Critical
Publication of EP2189408B1 publication Critical patent/EP2189408B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • D01H1/14—Details
    • D01H1/38—Arrangements for winding reserve lengths of yarn on take-up packages or spindles, e.g. transfer tails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H65/00—Securing material to cores or formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/20—Force systems, e.g. composition of forces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a clamping device for threads on a spindle of a spinning or twisting machine, which is arranged on a spindle top, comprising a fixed clamping element and an axially displaceable, against the fixed clamping element by spring force can be pressed clamping element, wherein the displaceable clamping element by spherical centrifugal elements against Spring force can be acted upon by a force that the displaceable clamping element in the axial direction spaced from the fixed clamping element that forms a nip between them and that the clamping device of the arrangement and leadership of the centrifugal elements serving, extending in the radial direction half shells, wherein each one Half shell is arranged on the displaceable clamping element and the respective corresponding half-shell on a fixed base element, and the half-shells of the displaceable clamping element with a ge to the horizontal tended backdrop and the corresponding half-shells of the base element are formed with a horizontal substantially parallel backdrop.
  • the transition between the opening of the clamping device and the closing of the clamping device in the range of the limit speed is relatively narrow, so that it may come too early opening the clamping device during rapid start-up of the spindle, which endangers secure piecing.
  • the same applies when closing the clamping device since it can come to an early closing of the clamping device when braking the spindle, with the result that the thread is not or insufficiently clamped to hold it during the Doffvorganges.
  • the object of the invention is to further develop the clamping device in such a way that the risk of an early closure or too early opening of the clamping device is minimized.
  • the inclined to the horizontal backdrops of the half-shells of the displaceable clamping element are formed such that they have starting from the half-shell of the displaceable clamping element in the direction of the longitudinal axis of the spindle top another inclination angle, as starting from the base element in the direction of the half-shell of the displaceable clamping element.
  • the different ones Inclination angles in the course of the inclined to the horizontal backdrops lead to an increase in the hysteresis between the opening speed and the closing speed. That is, there is a distance between the speed range at which it comes to an opening of the clamping device, and the speed range at which it comes to a closing of the clamping device, a.
  • the opening of the clamping device can be moved to release the nip to high speeds. Since a speedy spindle run-up is advantageous for a secure piecing and for a fast balloon construction, it can be achieved by a suitable combination of the inclination angle in the course of the inclined to the horizontal scenes that the clamping device releases the nip only when reaching a speed above the speed in which the piecing is done and was completed to spin off the trapped thread.
  • the inventive design of the inclined to the horizontal backdrops causes the time of closing the clamping device is moved to a low speed until just before the stoppage of the spindle, so that an extended time window for the supply of the thread in the nip and the secure clamping of the thread is created before the Doffvorgang.
  • the inclined to the horizontal scenes of the half-shells of the displaceable clamping element may have a radially curved course.
  • the increase in hysteresis results from different radii of curvature in the course of the backdrop.
  • the inclination of the first section should be less than the inclination of the second section.
  • the larger angle of inclination of the second section delays when accelerating the spindle, the achievement of the respective half-shell on the displaceable clamping element of the centrifugal force elements such that the opening of the clamping device takes place only at a high speed.
  • the thread is held longer compared to the prior art in the nip.
  • the low inclination of the first section causes the centrifugal force elements, the respective corresponding half-shells on the base element to be delayed in response to deceleration of the spindle, whereby the closing of the nip is moved to clamp the inserted into the nip thread to low speeds.
  • the inclination of the first section may be between 25 ° and 35 °.
  • the inclination of the second section may be between 45 ° and 65 °.
  • a viscous damping medium can be arranged in the clamping device.
  • This may be an oil or fat, in particular silicone oil or fat, which due to its damping properties contributes to an additional influence on the movement sequence of the clamping device or the centrifugal force elements.
  • the viscous damping medium may be arranged in intermediate spaces of the clamping device, which are formed between the displaceable and the fixed clamping element. As a result, the movement of the clamping device is affected as a whole.
  • the viscous damping medium can be arranged in the half-shells.
  • the damping medium acts specifically on the movement of the centrifugal elements.
  • Fig. 1 is a spindle upper part 1 of a spindle of a textile machine, in particular a spinning and twisting spindle shown.
  • the spindle upper part 1 has a shaft made of metal, which serves to receive a sleeve, not shown, on which a thread is to be wound up into a cop.
  • an unillustrated spinning ring is arranged on the spindle upper part 1, which concentrically surrounds the spindle upper part 1 and on which a ring traveler rotates, which deflects the thread to the sleeve and winds on this.
  • a drive whorl 2 is arranged, via which the spindle upper part 1 can be driven during operation of the textile machine.
  • the drive whorl 2 has a fit 14, which serves to fasten a clamping device 4 according to the invention for clamping the thread during doffing of the manufactured cop.
  • the clamping device 4 is centrifugally operated and can take two positions, a clamping position in which the thread is clamped, as in Fig. 2 is shown, and an open position in which the thread can be supplied or released and thrown off, as in Fig. 3 is shown.
  • Fig. 2 represents the clamping device 4 according to the invention in a sectional view in its clamping position.
  • the rotationally symmetrical with respect to its longitudinal axis constructed clamping device 4 has a fixed clamping element 5 and a relative to this displaceable clamping element 6.
  • an annular projection 17 is arranged on the underside facing the displaceable clamping element 6.
  • the projection 17 abuts in the closed position of the clamping device 4 on a pressure surface 18 of the displaceable clamping element 6.
  • the pressure surface 18 may preferably be designed to be conical on its inner side facing the spindle upper part 1, as well as on the outside of the displaceable clamping element 6 facing away from the spindle upper part 1.
  • the clamping device 4 is designed in several parts and includes in addition to the fixed clamping element 5 and the axially displaceable, clamping element 6, a base member 7, which can be supported in the mounted position of the clamping device 4 on a flange 10 of the Antriebswirtels 2 to the clamping device 4 in the axial direction to fix.
  • the base element 7 engages in a knurling 3 of the Antriebswirtels 2 to prevent twisting of the clamping device 4.
  • the pressed onto the fit 14 of the Antriebswirtels 2 fixed clamping element 5 secures the clamping device 4 in the axial direction.
  • the clamping device 4 comprises a compression spring 8 and a plurality of centrifugal elements 9, which are designed in particular as balls, which are offset at an angle to each other evenly distributed over the circumference of the spindle upper part 1 and spaced from the nip 16 in the clamping device 4 are arranged.
  • the base element 7 also serves to receive and guide the centrifugal elements 9.
  • the substantially cylindrical base element 7 has a coaxial to the longitudinal axis of the spindle top 1 wall 11, which is provided with a number of centrifugal elements 9 corresponding number of through holes 12.
  • half-shells 13 are arranged, which extend from the through holes 12, starting radially to the longitudinal axis of the spindle upper part 1 to the outside. The half shells 13 close to the through holes 12 in the axial direction.
  • the displaceable clamping element 6 has the half-shells 13 corresponding half-shells 15 extending in a radially inclined direction.
  • the half-shells 13, 15 serving to receive the centrifugal force elements 9 are designed in accordance with the shape of the spherical centrifugal force elements 9 and adapted to their dimensions.
  • the leadership of the centrifugal elements 9 in the clamping device 4 is achieved by a backdrop-like leadership.
  • the half-shells 15 of the displaceable clamping element 6 each have a slanted to the horizontal backdrop 20 and the half-shells 13 of the base element 7 a extending in the radial direction gate 19, in which the spherical centrifugal elements 9 can move in the radial direction.
  • the horizontal inclined backdrop 20 of the displaceable clamping element 6 is divided into a first portion 21 and a second portion 22.
  • the first section 21 and the second section 22 have different angles of inclination.
  • the angle of inclination of the first portion 21, which extends from the wall of the displaceable clamping element 6, starting in the direction of the longitudinal axis of the spindle 1, is made smaller than the inclination angle of the second portion 22, starting from the base element 7 facing side of the displaceable Clamping element 6 extends in the direction of the half-shell 13.
  • the angle of inclination of the first section 21 is preferably between 25 ° and 35 °, while the second section 22 has an angle of inclination between 45 ° and 65 °.
  • the compression spring 8 is supported on the base element 7 and on which the base element 7 surrounding displaceable clamping element 6 and pushes it in the direction of the fixed clamping element 5.
  • the transition between the clamping position and the open position of the clamping device 4 takes place when reaching a speed in Pending on the selected angles of inclination of the first section 21 and the second section 22 varies.
  • the greater inclination of the second portion 22 causes the acceleration of the spindle, the achievement of the half-shell 13 of the displaceable clamping element 6 is delayed by the centrifugal elements 9.
  • the centrifugal force required to overcome the force acting on the clamping elements 5, 6 during clamping of the thread in the clamping gap 16 centrifugal force is achieved only at a high opening speed. This is above the speed at which the piecing has been completed. This ensures that the rapid start-up of the spindle, which is necessary for secure piecing and the rapid formation of a thread balloon, does not cause the trapped thread to be thrown off too early.
  • centrifugal force elements 9 are influenced in their movement sequence during braking of the spindle to initiate the Doffvorganges and the associated pinching of the thread so that they their position in the respective half-shells 13 of the displaceable clamping element 6 leave only when a certain speed is reached, which is far below the opening speed.
  • the influencing of the movement sequence according to the invention leads to an increase in the hysteresis between the opening speed and the closing speed of the clamping device 4.
  • the centrifugal force counterforce, the closing of the clamping device 4 due to the spring force of the compression spring.
  • the clamping device 4 remains in the closed position even after the spindle has stopped.
  • the opening speed depends on the material properties of the material to be processed on the spinning machine, that is, when processing coarse yarn, the opening speed is lower than in the case of processing fine yarn. Accordingly, the inclination of the first section 21 and the inclination of the second section 22 should be selected in order to achieve an opening speed adapted to the yarn to be processed.
  • the opening speed is at least twice the closing speed of the clamping device. 4
  • the influence of the hysteresis between the opening speed and the closing speed of the clamping device 4 can be additionally influenced by further design measures.
  • the mass of the centrifugal force elements 9 vary and / or the spring stiffness of the compression spring 8.
  • a damping medium in the scenes such as oil or grease, especially silicone oil or silicone grease, due to the viscosity of the damping medium, a delay in the movement of the Centrifugal elements 9 can be achieved, which contributes to influencing the hysteresis.
  • the clamping device 4 differs from the first in that the horizontally inclined gate 20 of the displaceable clamping element 6 has a radially curved course 23, so that it starts from the half shell 15 of the displaceable clamping element 6 in the direction of the longitudinal axis Spindle upper part 1 has a different angle of inclination, as starting from the base element 7 in the direction of the half-shell 15 of the displaceable clamping element 6.
  • the radially curved course 23 of the slide 20 leads in the same manner as already described in the first embodiment, to influence the Movement of the centrifugal elements 9, whereby the hysteresis between the opening speed and the closing speed is increased.

Landscapes

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

Abstract

The device (4) has half-shells (13, 15) extending in a radial direction and serving for arrangement and guiding of centrifugal force elements (9). One of the half-shells (15) is arranged at an axially slidable clamping element (6). The other half-shell (13) is arranged at a fixedly arranged base element (7). Connecting rods (20) of the former half-shell are formed such that the rods include a different inclination angle in a direction of a longitudinal axis of a spindle upper part based on the former shell than that based on the base element in a direction of the former shell.

Description

Die Erfindung betrifft eine Klemmvorrichtung für Fäden an einer Spindel einer Spinn- oder Zwirnmaschine, welche an einem Spindeloberteil angeordnet ist, umfassend ein feststehendes Klemmelement und ein axial verschiebbares, gegen das feststehende Klemmelement durch Federkraft anpressbares Klemmelement, wobei das verschiebbare Klemmelement durch kugelförmige Fliehkraftelemente entgegen der Federkraft mit einer Kraft beaufschlagbar ist, die das verschiebbare Klemmelement in axialer Richtung derart zum feststehenden Klemmelement beabstandet, dass sich zwischen diesen ein Klemmspalt ausbildet und dass die Klemmvorrichtung der Anordnung und Führung der Fliehkraftelemente dienende, sich in radialer Richtung erstreckende Halbschalen aufweist, wobei jeweils eine Halbschale an dem verschiebbaren Klemmelement und die jeweils korrespondierende Halbschale an einem fest angeordneten Sockelelement angeordnet ist, und die Halbschalen des verschiebbaren Klemmelementes mit einer zur Horizontalen geneigten Kulisse und die korrespondierenden Halbschalen des Sockelelementes mit einer zur Horizontalen im Wesentlichen parallelen Kulisse ausgebildet sind.The invention relates to a clamping device for threads on a spindle of a spinning or twisting machine, which is arranged on a spindle top, comprising a fixed clamping element and an axially displaceable, against the fixed clamping element by spring force can be pressed clamping element, wherein the displaceable clamping element by spherical centrifugal elements against Spring force can be acted upon by a force that the displaceable clamping element in the axial direction spaced from the fixed clamping element that forms a nip between them and that the clamping device of the arrangement and leadership of the centrifugal elements serving, extending in the radial direction half shells, wherein each one Half shell is arranged on the displaceable clamping element and the respective corresponding half-shell on a fixed base element, and the half-shells of the displaceable clamping element with a ge to the horizontal tended backdrop and the corresponding half-shells of the base element are formed with a horizontal substantially parallel backdrop.

Aus der DE 10 2006 022 484 A1 ist eine fliehkraftbetätigte Klemmvorrichtung der eingangs genannten Art bekannt, bei der die Umschlingung des Fadens im Unterwindebereich kleiner als 360° ist. Um eine zuverlässige Klemmung vor dem Doffen beziehungsweise ein sicheres Anspinnen vor dem Abschleudern des Faden nach dem Doffen zu erreichen, ist die Klemmvorrichtung fliehkraftbetätigt ausgeführt. Wie in der DE 10 2006 022 484 A1 ausgeführt, weisen die Kulissen der Halbschalen des verschiebbaren Klemmelementes eine Neigung zur Horizontalen auf.From the DE 10 2006 022 484 A1 is a centrifugally operated clamping device of the type mentioned, in which the looping of the thread in the lower region is less than 360 °. In order to achieve a reliable clamping before Doffen or a secure piecing before spinning off the thread after doffing, the clamping device is designed centrifugally operated. Like in the DE 10 2006 022 484 A1 executed, the scenes of the half-shells of the displaceable clamping element on an inclination to the horizontal.

Der gewählte Neigungswinkel der Kulissen bestimmt bei der fliehkraftbetätigten Klemmvorrichtung, bei welcher Grenzdrehzahl sich die Klemmvorrichtung öffnet beziehungsweise schließt, um den Faden freizugeben und abzuschleudern oder zu klemmen.The selected angle of inclination of the scenes determined in the centrifugal force-actuated clamping device at which limit speed, the clamping device opens or closes to release the thread and spin or clamp.

Der Übergang zwischen dem Öffnen der Klemmvorrichtung und dem Schließen der Klemmvorrichtung im Bereich der Grenzdrehzahl ist relativ schmal ausgebildet, so dass es beim schnellen Hochlaufen der Spindel zu einem zu frühen Öffnen der Klemmvorrichtung kommen kann, was das sichere Anspinnen gefährdet. Entsprechendes gilt auch beim Schließen der Klemmvorrichtung, da es beim Abbremsen der Spindel zu einem zu frühen Schließen der Klemmvorrichtung kommen kann, mit der Folge, dass der Faden nicht oder nur unzureichend eingeklemmt wird, um ihn während des Doffvorganges zu festzuhalten.The transition between the opening of the clamping device and the closing of the clamping device in the range of the limit speed is relatively narrow, so that it may come too early opening the clamping device during rapid start-up of the spindle, which endangers secure piecing. The same applies when closing the clamping device, since it can come to an early closing of the clamping device when braking the spindle, with the result that the thread is not or insufficiently clamped to hold it during the Doffvorganges.

Aufgabe der Erfindung ist es, die Klemmvorrichtung derart weiterzuentwickeln, dass die Gefahr eines zu frühen Schließens beziehungsweise eines zu frühen Öffnens der Klemmvorrichtung minimiert wird.The object of the invention is to further develop the clamping device in such a way that the risk of an early closure or too early opening of the clamping device is minimized.

Diese Aufgabe wird erfindungsgemäß durch eine Klemmvorrichtung mit den Merkmalen des Anspruches 1 gelöst.This object is achieved by a clamping device with the features of claim 1.

Vorteilhafte Ausgestaltungen einer solchen Klemmvorrichtung sind Gegenstand der Unteransprüche.Advantageous embodiments of such a clamping device are the subject of the dependent claims.

Gemäß Anspruch 1 wird vorgeschlagen, dass die zur Horizontalen geneigten Kulissen der Halbschalen des verschiebbaren Klemmelementes derart ausgebildet sind, dass sie ausgehend von der Halbschale des verschiebbaren Klemmelementes in Richtung der Längsachse des Spindeloberteiles einen anderen Neigungswinkel aufweisen, als ausgehend von dem Sockelelement in Richtung der Halbschale des verschiebbaren Klemmelementes. Die unterschiedlichen Neigungswinkel im Verlauf der zur Horizontalen geneigten Kulissen führen zu einer Vergrößerung der Hysterese zwischen der Öffnungsdrehzahl und der Schließdrehzahl. Das heißt, es stellt sich ein Abstand zwischen dem Drehzahlbereich, bei dem es zu einem Öffnen der Klemmvorrichtung kommt, und dem Drehzahlbereich, bei dem es zu einem Schließen der Klemmvorrichtung kommt, ein. Durch die unterschiedlichen Neigungswinkel im Verlauf der zur Horizontalen geneigten Kulisse lässt sich das Öffnen der Klemmvorrichtung zur Freigabe des Klemmspaltes hin zu hohen Drehzahlen verschieben. Da für ein sicheres Anspinnen und für einen schnellen Ballonaufbau ein zügiger Spindelhochlauf vorteilhaft ist, kann durch eine geeignete Kombination der Neigungswinkel im Verlauf der zur Horizontalen geneigten Kulissen erreicht werden, dass die Klemmvorrichtung den Klemmspalt erst mit dem Erreichen einer Drehzahl freigibt, die oberhalb der Drehzahl liegt, bei der das Anspinnen erfolgt und abgeschlossen wurde, um den eingeklemmten Faden abzuschleudern. Umgekehrt führt die erfindungsgemäße Ausgestaltung der zur Horizontalen geneigten Kulissen dazu, dass der Zeitpunkt des Schließens der Klemmvorrichtung hin zu einer niedrigen Drehzahl, bis unmittelbar vor den Stillstand der Spindel, verschoben wird, so dass ein ausgedehntes Zeitfenster für die Zufuhr des Fadens in den Klemmspalt und das sichere Klemmen des Fadens vor dem Doffvorgang erzeugt wird.According to claim 1, it is proposed that the inclined to the horizontal backdrops of the half-shells of the displaceable clamping element are formed such that they have starting from the half-shell of the displaceable clamping element in the direction of the longitudinal axis of the spindle top another inclination angle, as starting from the base element in the direction of the half-shell of the displaceable clamping element. The different ones Inclination angles in the course of the inclined to the horizontal backdrops lead to an increase in the hysteresis between the opening speed and the closing speed. That is, there is a distance between the speed range at which it comes to an opening of the clamping device, and the speed range at which it comes to a closing of the clamping device, a. Due to the different angles of inclination in the course of the inclined to the horizontal backdrop, the opening of the clamping device can be moved to release the nip to high speeds. Since a speedy spindle run-up is advantageous for a secure piecing and for a fast balloon construction, it can be achieved by a suitable combination of the inclination angle in the course of the inclined to the horizontal scenes that the clamping device releases the nip only when reaching a speed above the speed in which the piecing is done and was completed to spin off the trapped thread. Conversely, the inventive design of the inclined to the horizontal backdrops causes the time of closing the clamping device is moved to a low speed until just before the stoppage of the spindle, so that an extended time window for the supply of the thread in the nip and the secure clamping of the thread is created before the Doffvorgang.

Hierzu können die zur Horizontalen geneigten Kulissen der Halbschalen des verschiebbaren Klemmelementes einen radial gekrümmten Verlauf aufweisen. Die Vergrößerung der Hysterese resultiert aus unterschiedlichen Krümmungsradien im Verlauf der Kulisse.For this purpose, the inclined to the horizontal scenes of the half-shells of the displaceable clamping element may have a radially curved course. The increase in hysteresis results from different radii of curvature in the course of the backdrop.

Alternativ können die zur Horizontalen geneigten Kulissen der Halbschalen des verschiebbaren Klemmelementes jeweils in einen ersten Abschnitt, der sich von der Halbschale ausgehend in Richtung der Längsachse des Spindeloberteiles erstreckt, und einen zweiten Abschnitt, der sich von dem Sockelelement ausgehend in Richtung der Halbschale des verschiebbaren Klemmelementes erstreckt, unterteilt sein, wobei der erste Abschnitt und der zweite Abschnitt unterschiedliche Neigungswinkel aufweisen.Alternatively, the inclined to the horizontal backdrops of the half-shells of the displaceable clamping element in each case in a first portion, starting from the half-shell in Direction of the longitudinal axis of the spindle top part extends, and a second portion, which extends from the base member extending in the direction of the half-shell of the displaceable clamping element, be divided, wherein the first portion and the second portion have different inclination angles.

Dabei sollte die Neigung des ersten Abschnittes geringer sein, als die Neigung des zweiten Abschnittes. Der größere Neigungswinkel des zweiten Abschnittes verzögert beim Beschleunigen der Spindel das Erreichen der jeweiligen Halbschale am verschiebbaren Klemmelement der Fliehkraftelemente derart, dass das Öffnen der Klemmvorrichtung erst bei einer hohen Drehzahl erfolgt. Der Faden wird gegenüber dem Stand der Technik länger im Klemmspalt festgehalten. Umgekehrt führt die geringe Neigung des ersten Abschnittes dazu, dass beim Abbremsen der Spindel die Fliehkraftelemente die jeweils korrespondierenden Halbschalen an dem Sockelelement zeitlich verzögert erreichen, wodurch das Schließen des Klemmspaltes zur Klemmung des in den Klemmspalt eingelegten Fadens hin zu niedrigen Drehzahlen verschoben wird.The inclination of the first section should be less than the inclination of the second section. The larger angle of inclination of the second section delays when accelerating the spindle, the achievement of the respective half-shell on the displaceable clamping element of the centrifugal force elements such that the opening of the clamping device takes place only at a high speed. The thread is held longer compared to the prior art in the nip. Conversely, the low inclination of the first section causes the centrifugal force elements, the respective corresponding half-shells on the base element to be delayed in response to deceleration of the spindle, whereby the closing of the nip is moved to clamp the inserted into the nip thread to low speeds.

Vorzugsweise kann die Neigung des ersten Abschnittes zwischen 25° und 35° betragen.Preferably, the inclination of the first section may be between 25 ° and 35 °.

Insbesondere kann die Neigung des zweiten Abschnittes zwischen 45° und 65° betragen.In particular, the inclination of the second section may be between 45 ° and 65 °.

Vorteilhafterweise kann in der Klemmvorrichtung ein viskoses Dämpfungsmedium angeordnet sein. Hierbei kann es sich um ein Öl oder Fett, insbesondere Silikonöl oder -fett, handeln, welches auf Grund seiner dämpfenden Eigenschaften zu einer zusätzlichen Beeinflussung des Bewegungsablaufes der Klemmvorrichtung respektive der Fliehkraftelemente beiträgt.Advantageously, a viscous damping medium can be arranged in the clamping device. This may be an oil or fat, in particular silicone oil or fat, which due to its damping properties contributes to an additional influence on the movement sequence of the clamping device or the centrifugal force elements.

Hierbei kann das viskose Dämpfungsmedium in Zwischenräumen der Klemmvorrichtung angeordnet sein, die zwischen dem verschiebbaren und dem feststehenden Klemmelement ausgebildet sind. Hierdurch wird der Bewegungsablauf der Klemmvorrichtung als Ganzes beeinflusst.Here, the viscous damping medium may be arranged in intermediate spaces of the clamping device, which are formed between the displaceable and the fixed clamping element. As a result, the movement of the clamping device is affected as a whole.

Ebenso kann das viskose Dämpfungsmedium in den Halbschalen angeordnet sein. Bei dieser Variante wirkt das Dämpfungsmedium gezielt auf den Bewegungsablauf der Fliehkraftelemente ein.Likewise, the viscous damping medium can be arranged in the half-shells. In this variant, the damping medium acts specifically on the movement of the centrifugal elements.

Die Erfindung wird nachfolgend anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher erläutert.The invention will be explained in more detail with reference to embodiments shown in the drawings.

Es zeigen:

Fig. 1
eine perspektivische Teilansicht eines Spindeloberteiles;
Fig. 2
eine Schnittansicht einer erfindungsgemäßen Klemmvorrichtung in ihrer Klemmposition;
Fig. 3
eine Schnittansicht der Klemmvorrichtung in geöffneter Position;
Fig. 4
eine Schnittansicht einer zweiten Ausführungsform der Klemmvorrichtung in ihrer Klemmposition;
Fig. 5
eine Schnittansicht einer zweiten Ausführungsform der Klemmvorrichtung in geöffneter Position.
Show it:
Fig. 1
a partial perspective view of a spindle top part;
Fig. 2
a sectional view of a clamping device according to the invention in its clamping position;
Fig. 3
a sectional view of the clamping device in the open position;
Fig. 4
a sectional view of a second embodiment of the clamping device in its clamping position;
Fig. 5
a sectional view of a second embodiment of the clamping device in the open position.

In Fig. 1 ist ein Spindeloberteil 1 einer Spindel einer Textilmaschine, insbesondere einer Spinn- und Zwirnspindel dargestellt. Das Spindeloberteil 1 weist einen Schaft aus Metall auf, der der Aufnahme einer nicht dargestellten Hülse dient, auf die ein Faden zu einem Kops aufgewickelt werden soll. Hierzu ist auf dem Spindeloberteil 1 ein nicht dargestellter Spinnring angeordnet, der das Spindeloberteil 1 konzentrisch umgibt und auf dem ein Ringläufer umläuft, der den Faden zur Hülse umlenkt und auf dieser aufwickelt. Am Spindeloberteil 1 ist ein Antriebswirtel 2 angeordnet, über den das Spindeloberteil 1 während des Betriebes der Textilmaschine antreibbar ist.In Fig. 1 is a spindle upper part 1 of a spindle of a textile machine, in particular a spinning and twisting spindle shown. The spindle upper part 1 has a shaft made of metal, which serves to receive a sleeve, not shown, on which a thread is to be wound up into a cop. For this purpose, an unillustrated spinning ring is arranged on the spindle upper part 1, which concentrically surrounds the spindle upper part 1 and on which a ring traveler rotates, which deflects the thread to the sleeve and winds on this. On the spindle upper part 1, a drive whorl 2 is arranged, via which the spindle upper part 1 can be driven during operation of the textile machine.

Der Antriebswirtel 2 weist eine Passung 14 auf, die der Befestigung einer erfindungsgemäßen Klemmvorrichtung 4 zur Klemmung des Fadens beim Doffen des hergestellten Kopses dient. Die Klemmvorrichtung 4 ist fliehkraftbetätigt und kann zwei Positionen einnehmen, eine Klemmposition, in der der Faden geklemmt wird, wie in Fig. 2 dargestellt ist, und eine geöffnete Position, in der der Faden zugeführt beziehungsweise freigegeben und abgeschleudert werden kann, wie in Fig. 3 dargestellt ist.The drive whorl 2 has a fit 14, which serves to fasten a clamping device 4 according to the invention for clamping the thread during doffing of the manufactured cop. The clamping device 4 is centrifugally operated and can take two positions, a clamping position in which the thread is clamped, as in Fig. 2 is shown, and an open position in which the thread can be supplied or released and thrown off, as in Fig. 3 is shown.

Fig. 2 stellt die erfindungsgemäße Klemmvorrichtung 4 in einer Schnittansicht in ihrer Klemmposition dar. Die mit Bezug auf ihre Längsachse rotationssymmetrisch aufgebaute Klemmvorrichtung 4 weist ein feststehendes Klemmelement 5 sowie ein gegenüber diesem verschiebbares Klemmelement 6 auf. An dem feststehenden Klemmelement 5 ist auf der dem verschiebbaren Klemmelement 6 zugewandten Unterseite ein ringförmiger Vorsprung 17 angeordnet. Wie in Fig. 2 dargestellt, liegt der Vorsprung 17 in geschlossener Position der Klemmvorrichtung 4 an einer Andruckfläche 18 des verschiebbaren Klemmelementes 6 an. Die Andruckfläche 18 kann vorzugsweise auf ihrer dem Spindeloberteil 1 zugewandten Innenseite, als auch auf der dem Spindeloberteil 1 abgewandten Außenseite des verschiebbaren Klemmelementes 6 konisch ausgeführt sein. In der Klemmposition werden die Andruckfläche 18 und der Vorsprung 17 der Klemmelemente 5, 6 gegeneinander gepresst, während in der geöffneten Position ein Klemmspalt 16 zwischen den beiden Klemmelementen 5, 6 entsteht, wie in Fig. 3 dargestellt ist. Die Klemmvorrichtung 4 ist mehrteilig ausgeführt und umfasst neben dem feststehenden Klemmelement 5 und dem axial verschiebbaren, Klemmelement 6 ein Sockelelement 7, das sich in montierter Position der Klemmvorrichtung 4 an einem flanschförmigen Absatz 10 des Antriebswirtels 2 abstützen kann, um die Klemmvorrichtung 4 in axialer Richtung zu fixieren. Das Sockelelement 7 greift in eine Rändelung 3 des Antriebswirtels 2 ein, um ein Verdrehen der Klemmvorrichtung 4 zu verhindern. Das auf die Passung 14 des Antriebswirtels 2 aufgepresste feststehende Klemmelement 5 sichert die Klemmvorrichtung 4 in axialer Richtung. Fig. 2 represents the clamping device 4 according to the invention in a sectional view in its clamping position. The rotationally symmetrical with respect to its longitudinal axis constructed clamping device 4 has a fixed clamping element 5 and a relative to this displaceable clamping element 6. At the fixed clamping element 5, an annular projection 17 is arranged on the underside facing the displaceable clamping element 6. As in Fig. 2 illustrated, the projection 17 abuts in the closed position of the clamping device 4 on a pressure surface 18 of the displaceable clamping element 6. The pressure surface 18 may preferably be designed to be conical on its inner side facing the spindle upper part 1, as well as on the outside of the displaceable clamping element 6 facing away from the spindle upper part 1. In the clamping position, the pressure surface 18 and the projection 17 of the clamping elements 5, 6 are pressed against each other, while in the open position, a clamping gap 16 between the two Clamping elements 5, 6 is formed, as in Fig. 3 is shown. The clamping device 4 is designed in several parts and includes in addition to the fixed clamping element 5 and the axially displaceable, clamping element 6, a base member 7, which can be supported in the mounted position of the clamping device 4 on a flange 10 of the Antriebswirtels 2 to the clamping device 4 in the axial direction to fix. The base element 7 engages in a knurling 3 of the Antriebswirtels 2 to prevent twisting of the clamping device 4. The pressed onto the fit 14 of the Antriebswirtels 2 fixed clamping element 5 secures the clamping device 4 in the axial direction.

Des Weiteren umfasst die Klemmvorrichtung 4 eine Druckfeder 8 sowie mehrere Fliehkraftelemente 9, die insbesondere als Kugeln ausgeführt sind, die unter einem Winkel zueinander versetzt über den Umfang des Spindeloberteiles 1 gleichmäßig verteilt und zum Klemmspalt 16 beabstandet in der Klemmvorrichtung 4 angeordnet sind.Furthermore, the clamping device 4 comprises a compression spring 8 and a plurality of centrifugal elements 9, which are designed in particular as balls, which are offset at an angle to each other evenly distributed over the circumference of the spindle upper part 1 and spaced from the nip 16 in the clamping device 4 are arranged.

Das Sockelelement 7 dient auch der Aufnahme und Führung der Fliehkraftelemente 9. Hierzu weist das im Wesentlichen zylindrische Sockelelement 7 eine zur Längsachse des Spindeloberteiles 1 koaxiale Wandung 11 auf, die mit einer der Anzahl von Fliehkraftelementen 9 entsprechenden Anzahl von Durchbohrungen 12 versehen ist. Auf der dem Antriebswirtel 2 abgewandten Seite der Wandung 11 sind Halbschalen 13 angeordnet, die sich von den Durchbohrungen 12 ausgehend radial zur Längsachse des Spindeloberteiles 1 nach außen erstrecken. Die Halbschalen 13 schließen sich dabei an die Durchbohrungen 12 in axialer Richtung an.The base element 7 also serves to receive and guide the centrifugal elements 9. For this purpose, the substantially cylindrical base element 7 has a coaxial to the longitudinal axis of the spindle top 1 wall 11, which is provided with a number of centrifugal elements 9 corresponding number of through holes 12. On the side facing away from the Antriebswirtel 2 side of the wall 11 half-shells 13 are arranged, which extend from the through holes 12, starting radially to the longitudinal axis of the spindle upper part 1 to the outside. The half shells 13 close to the through holes 12 in the axial direction.

Um die Fliehkraftelemente 9 nahezu vollständig zu umschließen, weist das verschiebbare Klemmelement 6 mit den Halbschalen 13 korrespondierende, sich in radial geneigter Richtung erstreckende Halbschalen 15 auf. Die der Aufnahme der Fliehkraftelemente 9 dienenden Halbschalen 13, 15 sind entsprechend der Form der kugelförmigen Fliehkraftelemente 9 ausgebildet und an deren Abmessungen angepasst.In order to almost completely surround the centrifugal force elements 9, the displaceable clamping element 6 has the half-shells 13 corresponding half-shells 15 extending in a radially inclined direction. The half-shells 13, 15 serving to receive the centrifugal force elements 9 are designed in accordance with the shape of the spherical centrifugal force elements 9 and adapted to their dimensions.

Die Führung der Fliehkraftelemente 9 in der Klemmvorrichtung 4 wird durch eine kulissenartige Führung erreicht. Hierzu weisen die Halbschalen 15 des verschiebbaren Klemmelementes 6 jeweils eine zur Horizontalen geneigte Kulisse 20 und die Halbschalen 13 des Sockelelementes 7 eine sich in radialer Richtung erstreckende Kulisse 19 auf, in denen sich die kugelförmigen Fliehkraftelemente 9 in radialer Richtung bewegen können.The leadership of the centrifugal elements 9 in the clamping device 4 is achieved by a backdrop-like leadership. For this purpose, the half-shells 15 of the displaceable clamping element 6 each have a slanted to the horizontal backdrop 20 and the half-shells 13 of the base element 7 a extending in the radial direction gate 19, in which the spherical centrifugal elements 9 can move in the radial direction.

Die zur horizontalen geneigte Kulisse 20 des verschiebbaren Klemmelementes 6 ist in einen ersten Abschnitt 21 und einen zweiten Abschnitt 22 unterteilt. Der erste Abschnitt 21 und der zweite Abschnitt 22 weisen dabei unterschiedliche Neigungswinkel auf. Der Neigungswinkel des ersten Abschnittes 21, der sich von der Wandung des verschiebbaren Klemmelementes 6 ausgehend in Richtung der Längsachse der Spindel 1 erstreckt, ist kleiner ausgeführt, als der Neigungswinkel des zweiten Abschnittes 22, der sich ausgehend von der dem Sockelelement 7 zugewandten Seite des verschiebbaren Klemmelementes 6 in Richtung der Halbschale 13 erstreckt. Der Neigungswinkel des ersten Abschnittes 21 beträgt vorzugsweise zwischen 25° und 35°, während der zweite Abschnitt 22 einen Neigungswinkel zwischen 45° und 65° aufweist. Die Abschnitte 21 und 22 der jeweiligen Kulissen 20 der Halbschalen 15, die symmetrisch in Umfangsrichtung der Klemmvorrichtung 4 angeordnet sind, weisen stets die gleichen Neigungswinkel auf, um eine gleichzeitige Führung sowie Beeinflussung des Bewegungsablaufes der Fliehkraftelemente 9 zu erreichen, um ein Verkanten im Inneren der Klemmvorrichtung 4 zu vermeiden.The horizontal inclined backdrop 20 of the displaceable clamping element 6 is divided into a first portion 21 and a second portion 22. The first section 21 and the second section 22 have different angles of inclination. The angle of inclination of the first portion 21, which extends from the wall of the displaceable clamping element 6, starting in the direction of the longitudinal axis of the spindle 1, is made smaller than the inclination angle of the second portion 22, starting from the base element 7 facing side of the displaceable Clamping element 6 extends in the direction of the half-shell 13. The angle of inclination of the first section 21 is preferably between 25 ° and 35 °, while the second section 22 has an angle of inclination between 45 ° and 65 °. The sections 21 and 22 of the respective scenes 20 of the half-shells 15, which are arranged symmetrically in the circumferential direction of the clamping device 4, always have the same angle of inclination to achieve simultaneous guidance and influencing the sequence of motion of the centrifugal elements 9 to tilting inside the Clamping device 4 to avoid.

Die Druckfeder 8 stützt sich an dem Sockelelement 7 und an dem das Sockelelement 7 umgebenden verschiebbaren Klemmelement 6 ab und drückt dieses in Richtung des feststehenden Klemmelementes 5. Der Übergang zwischen der Klemmposition und der geöffneten Position der Klemmvorrichtung 4 erfolgt beim Erreichen einer Drehzahl, die in Anhängigkeit von den gewählten Neigungswinkeln des ersten Abschnittes 21 und des zweiten Abschnittes 22 variiert. Die größere Neigung des zweiten Abschnittes 22 führt dazu, dass beim Beschleunigen der Spindel das Erreichen der Halbschale 13 des verschiebbaren Klemmelementes 6 durch die Fliehkraftelemente 9 verzögert wird. Die zur Überwindung der beim Klemmen des Fadens im Klemmspalt 16 auf die Klemmelemente 5, 6 einwirkenden Federkraft erforderliche Fliehkraft wird erst bei einer hohen Öffnungsdrehzahl erreicht. Diese liegt oberhalb der Drehzahl, bei der das Anspinnen abgeschlossen worden ist. Hierdurch wird gewährleistet, dass das für ein sicheres Anspinnen und das schnelle Ausbilden eines Fadenballons erforderliche zügige Hochlaufen der Spindel nicht dazu führt, dass der eingeklemmte Faden zu früh abgeschleudert wird.The compression spring 8 is supported on the base element 7 and on which the base element 7 surrounding displaceable clamping element 6 and pushes it in the direction of the fixed clamping element 5. The transition between the clamping position and the open position of the clamping device 4 takes place when reaching a speed in Pending on the selected angles of inclination of the first section 21 and the second section 22 varies. The greater inclination of the second portion 22 causes the acceleration of the spindle, the achievement of the half-shell 13 of the displaceable clamping element 6 is delayed by the centrifugal elements 9. The centrifugal force required to overcome the force acting on the clamping elements 5, 6 during clamping of the thread in the clamping gap 16, centrifugal force is achieved only at a high opening speed. This is above the speed at which the piecing has been completed. This ensures that the rapid start-up of the spindle, which is necessary for secure piecing and the rapid formation of a thread balloon, does not cause the trapped thread to be thrown off too early.

Umgekehrt führt die gegenüber dem zweiten Abschnitt 22 geringere Neigung des ersten Abschnittes 21 dazu, dass beim Abbremsen der Spindel zur Einleitung des Doffvorganges und des damit verbundenen Einklemmens des Fadens die Fliehkraftelemente 9 in ihrem Bewegungsablauf derart beeinflusst werden, dass sie ihre Position in den jeweiligen Halbschalen 13 des verschiebbaren Klemmelementes 6 erst verlassen, wenn eine bestimmte Drehzahl erreicht wird, die weit unterhalb der Öffnungsdrehzahl liegt. Die erfindungsgemäße Beeinflussung des Bewegungsablaufes führt zu einer Vergrößerung der Hysterese zwischen der Öffnungsdrehzahl und der Schließdrehzahl der Klemmvorrichtung 4. Somit wird die fliehkraftbedingte Gegenkraft, die das Schließen der Klemmvorrichtung 4 auf Grund der Federkraft der Druckfeder 8 verhindert, bis zu einer Drehzahl aufrechterhalten, die beispielsweise in einem Bereich von etwa 2500 1/min - 4000 1/min liegt. Die Klemmvorrichtung 4 bleibt auch nach dem Stillstand der Spindel in geschlossener Position. Die Öffnungsdrehzahl ist davon abhängig, welche Materialeigenschaften das auf der Spinnmaschine zu verarbeitende Material aufweist, das heißt bei einer Verarbeitung von grobem Garn ist die Öffnungsdrehzahl niedriger als bei der Verarbeitung von feinem Garn. Entsprechend ist die Neigung des ersten Abschnittes 21 und die Neigung des zweiten Abschnittes 22 zu wählen, um eine an das zu verarbeitende Garn angepasste Öffnungsdrehzahl zu erreichen. Die Öffnungsdrehzahl beträgt mindestens das zweifache der Schließdrehzahl der Klemmvorrichtung 4.Conversely, compared to the second portion 22 lower inclination of the first portion 21 causes the centrifugal force elements 9 are influenced in their movement sequence during braking of the spindle to initiate the Doffvorganges and the associated pinching of the thread so that they their position in the respective half-shells 13 of the displaceable clamping element 6 leave only when a certain speed is reached, which is far below the opening speed. The influencing of the movement sequence according to the invention leads to an increase in the hysteresis between the opening speed and the closing speed of the clamping device 4. Thus, the centrifugal force counterforce, the closing of the clamping device 4 due to the spring force of the compression spring. 8 prevented, up to a speed, for example, in a range of about 2500 1 / min - 4000 1 / min. The clamping device 4 remains in the closed position even after the spindle has stopped. The opening speed depends on the material properties of the material to be processed on the spinning machine, that is, when processing coarse yarn, the opening speed is lower than in the case of processing fine yarn. Accordingly, the inclination of the first section 21 and the inclination of the second section 22 should be selected in order to achieve an opening speed adapted to the yarn to be processed. The opening speed is at least twice the closing speed of the clamping device. 4

Die Beeinflussung der Hysterese zwischen der Öffnungsdrehzahl und der Schließdrehzahl der Klemmvorrichtung 4 kann darüber hinaus durch weitere konstruktive Maßnahmen zusätzlich beeinflusst werden. Hierzu kann die Masse der Fliehkraftelemente 9 variieren und/ oder die Federsteifigkeit der Druckfeder 8. Ebenfalls kann durch die Verwendung eines Dämpfungsmediums in den Kulissen, wie beispielsweise Öl oder Fett, insbesondere Silikonöl oder Silikonfett, auf Grund der Viskosität des Dämpfungsmediums eine Verzögerung im Bewegungsablauf der Fliehkraftelemente 9 erreicht werden, die zu einer Beeinflussung der Hysterese beiträgt.The influence of the hysteresis between the opening speed and the closing speed of the clamping device 4 can be additionally influenced by further design measures. For this purpose, the mass of the centrifugal force elements 9 vary and / or the spring stiffness of the compression spring 8. Also, by using a damping medium in the scenes, such as oil or grease, especially silicone oil or silicone grease, due to the viscosity of the damping medium, a delay in the movement of the Centrifugal elements 9 can be achieved, which contributes to influencing the hysteresis.

In den Fig. 4 und 5 ist eine alternative Ausführungsform der Klemmvorrichtung 4 in geschlossener beziehungsweise geöffneter Position dargestellt. Die zweite Ausführungsform der Klemmvorrichtung 4 unterscheidet sich von der ersten dadurch, dass die zur horizontalen geneigte Kulisse 20 des verschiebbaren Klemmelementes 6 einen radial gekrümmten Verlauf 23 aufweist, so dass sie ausgehend von der Halbschale 15 des verschiebbaren Klemmelementes 6 in Richtung der Längsachse des Spindeloberteiles 1 einen anderen Neigungswinkel aufweist, als ausgehend von dem Sockelelement 7 in Richtung der Halbschale 15 des verschiebbaren Klemmelementes 6. Der radial gekrümmte Verlauf 23 der Kulisse 20 führt in der gleichen Weise, wie bereits bei der ersten Ausführungsform beschrieben wurde, zu einer Beeinflussung des Bewegungsablaufes der Fliehkraftelemente 9, wodurch die Hysterese zwischen der Öffnungsdrehzahl und der Schließdrehzahl vergrößert wird.In the 4 and 5 an alternative embodiment of the clamping device 4 is shown in the closed or open position. The second embodiment of the clamping device 4 differs from the first in that the horizontally inclined gate 20 of the displaceable clamping element 6 has a radially curved course 23, so that it starts from the half shell 15 of the displaceable clamping element 6 in the direction of the longitudinal axis Spindle upper part 1 has a different angle of inclination, as starting from the base element 7 in the direction of the half-shell 15 of the displaceable clamping element 6. The radially curved course 23 of the slide 20 leads in the same manner as already described in the first embodiment, to influence the Movement of the centrifugal elements 9, whereby the hysteresis between the opening speed and the closing speed is increased.

Claims (9)

Klemmvorrichtung (4) für Fäden an einer Spindel einer Spinn- oder Zwirnmaschine, welches an einem Spindeloberteil (1) angeordnet ist, umfassend ein feststehendes Klemmelement (5) und ein axial verschiebbares, gegen das feststehende Klemmelement (5) durch Federkraft anpressbares Klemmelement (6), wobei das verschiebbare Klemmelement (6) durch kugelförmige Fliehkraftelemente (9) entgegen der Federkraft mit einer Kraft beaufschlagbar ist, die das verschiebbare Klemmelement (6) in axialer Richtung derart zum feststehenden Klemmelement (5) beabstandet, dass sich zwischen diesen ein Klemmspalt (16) ausbildet, und dass die Klemmvorrichtung (4) der Anordnung und Führung der Fliehkraftelemente (9) dienende, sich in radialer Richtung erstreckende Halbschalen (13, 15) aufweist, wobei jeweils eine Halbschale (15) an dem verschiebbaren Klemmelement (6) und die jeweils korrespondierende Halbschale (13) an einem fest angeordneten Sockelelement (7) angeordnet ist, und die Halbschalen (15) des verschiebbaren Klemmelementes (6) jeweils mit einer zur Horizontalen geneigten Kulisse (20) und die korrespondierenden Halbschalen (13) des Sockelelementes (7) jeweils mit einer zur Horizontalen im Wesentlichen parallelen Kulisse (19) ausgebildet sind,
dadurch gekennzeichnet,
dass die zur Horizontalen geneigten Kulissen (20) der Halbschalen (15) des verschiebbaren Klemmelementes (6) derart ausgebildet sind, dass sie ausgehend von der Halbschale (15) des verschiebbaren Klemmelementes (6) in Richtung der Längsachse des Spindeloberteiles (1) einen anderen Neigungswinkel aufweisen, als ausgehend von dem Sockelelement (7) in Richtung der Halbschale (15) des verschiebbaren Klemmelementes (6).Clamping device (4) for threads on a spindle of a spinning or twisting machine, which is arranged on a spindle upper part (1) comprising a fixed clamping element (5) and an axially displaceable clamping element (6) which can be pressed against the fixed clamping element (5) by spring force ), wherein the displaceable clamping element (6) by spherical centrifugal force elements (9) against the spring force is acted upon by a force which the displaceable clamping element (6) in the axial direction such to the fixed clamping element (5) spaced that between them a clamping gap ( 16), and that the clamping device (4) of the arrangement and guidance of the centrifugal elements (9) serving, extending in the radial direction half shells (13, 15), wherein in each case a half-shell (15) on the displaceable clamping element (6) and the respective corresponding half-shell (13) is arranged on a fixed base element (7), and the half-shells (15) of the vers slidable clamping element (6) are each formed with an inclined to the horizontal backdrop (20) and the corresponding half-shells (13) of the base element (7) each with a horizontal substantially parallel backdrop (19),
characterized,
in that the slants (20) of the half shells (15) of the displaceable clamping element (6) which are inclined relative to the horizontal are designed in such a way that, starting from the half shell (15) of the displaceable clamping element (6) in the direction of the longitudinal axis of the spindle upper part (1) Have angles of inclination, as starting from the Base element (7) in the direction of the half-shell (15) of the displaceable clamping element (6). Klemmvorrichtung (4) nach Anspruch 1, dadurch gekennzeichnet, dass die zur Horizontalen geneigten Kulissen (20) der Halbschalen (15) des verschiebbaren Klemmelementes (6) einen radial gekrümmten Verlauf (23) aufweisen.Clamping device (4) according to claim 1, characterized in that the inclined to the horizontal backdrops (20) of the half-shells (15) of the displaceable clamping element (6) have a radially curved course (23). Klemmvorrichtung (4) nach Anspruch 1, dadurch gekennzeichnet, dass die zur Horizontalen geneigten Kulissen (20) der Halbschalen (15) des verschiebbaren Klemmelementes (6) jeweils in einen ersten Abschnitt (21), der sich von der Halbschale (15) ausgehend in Richtung der Längsachse des Spindeloberteiles (1) erstreckt, und einen zweiten Abschnitt (22), der sich von dem Sockelelement (7) ausgehend in Richtung der Halbschale (15)erstreckt, unterteilt sind, wobei der erste Abschnitt (21) und der zweite Abschnitt (22) unterschiedliche Neigungswinkel aufweisen.Clamping device (4) according to claim 1, characterized in that the inclined to the horizontal backdrops (20) of the half-shells (15) of the displaceable clamping element (6) each in a first portion (21) extending from the half-shell (15) starting in Direction of the longitudinal axis of the spindle top part (1) extends, and a second portion (22) extending from the base element (7) extending in the direction of the half-shell (15) are divided, wherein the first portion (21) and the second portion (22) have different angles of inclination. Klemmvorrichtung (4) nach Anspruch 3, dadurch gekennzeichnet, dass die Neigung des ersten Abschnittes (21) geringer ist, als die des zweiten Abschnittes (22).Clamping device (4) according to claim 3, characterized in that the inclination of the first portion (21) is less than that of the second portion (22). Klemmvorrichtung (4) nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die Neigung des ersten Abschnittes (21) zwischen 25° und 35° beträgt.Clamping device (4) according to one of claims 3 or 4, characterized in that the inclination of the first section (21) is between 25 ° and 35 °. Klemmvorrichtung (4) nach einem der Ansprüche 3 oder 4, dadurch gekennzeichnet, dass die Neigung des zweiten Abschnittes (22) zwischen 45° und 65° beträgt.Clamping device (4) according to one of claims 3 or 4, characterized in that the inclination of the second section (22) is between 45 ° and 65 °. Klemmvorrichtung (4) nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass in der Klemmvorrichtung (4) ein viskoses Dämpfungsmedium angeordnet ist.Clamping device (4) according to one of claims 1 to 6, characterized in that in the clamping device (4) a viscous damping medium is arranged. Klemmvorrichtung (4) nach Anspruch 7, dadurch gekennzeichnet, dass das viskose Dämpfungsmedium in Zwischenräumen der Klemmvorrichtung (4) angeordnet ist, die zwischen dem verschiebbaren und dem feststehenden Klemmelement (5, 6) ausgebildet sind.Clamping device (4) according to claim 7, characterized in that the viscous damping medium is arranged in intermediate spaces of the clamping device (4) which are formed between the displaceable and the fixed clamping element (5, 6). Klemmvorrichtung (4) nach Anspruch 7, dadurch gekennzeichnet, dass das viskose Dämpfungsmedium in den Halbschalen (13, 15) angeordnet ist.Clamping device (4) according to claim 7, characterized in that the viscous damping medium in the half-shells (13, 15) is arranged.
EP09013733.2A 2008-11-22 2009-10-31 Clamping device Active EP2189408B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008058655.2A DE102008058655B4 (en) 2008-11-22 2008-11-22 clamping device

Publications (3)

Publication Number Publication Date
EP2189408A2 true EP2189408A2 (en) 2010-05-26
EP2189408A3 EP2189408A3 (en) 2014-01-08
EP2189408B1 EP2189408B1 (en) 2015-12-16

Family

ID=41698517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09013733.2A Active EP2189408B1 (en) 2008-11-22 2009-10-31 Clamping device

Country Status (7)

Country Link
EP (1) EP2189408B1 (en)
JP (1) JP5380254B2 (en)
KR (1) KR101629364B1 (en)
CN (1) CN101899729B (en)
DE (1) DE102008058655B4 (en)
ES (1) ES2557102T3 (en)
TW (1) TWI513648B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2530041A1 (en) * 2011-05-31 2012-12-05 Maschinenfabrik Rieter AG Yarn nipping device for a spinning or twisting spindle

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009023644A1 (en) * 2009-05-25 2010-12-02 Wilhelm Stahlecker Gmbh Thread clamping device for a spindle of a spinning or twisting machine
DE102013020470A1 (en) 2013-12-03 2015-06-03 Saurer Components Gmbh Clamping device for clamping a thread on a spindle of a spinning or twisting machine and spinning or twisting machine
WO2017077546A1 (en) * 2015-11-06 2017-05-11 A.T.E. Enterprises Pvt. Ltd. An under winding clamping device and process of clamping the yarn thereof
DE102016007040A1 (en) 2016-06-09 2017-12-14 Saurer Components Gmbh Thread clamp
DE102016007041A1 (en) 2016-06-09 2017-12-14 Saurer Components Gmbh Thread clamp
CN106757579B (en) * 2016-12-23 2018-11-20 晋中经纬恒腾纺机有限公司 bobbin spindle connector
ES2916467T3 (en) 2019-01-25 2022-07-01 Saurer Spinning Solutions Gmbh & Co Kg Loading and unloading unit for a thread clamp device and a thread clamp device
CN110117848A (en) * 2019-06-18 2019-08-13 李廷荔 A kind of yarn gripper for spinning frame spindle
CN110436271B (en) * 2019-08-15 2020-10-30 浙江富兴服装有限公司 Easy-to-adjust yarn bobbin for spinning
CN112553058A (en) * 2021-01-15 2021-03-26 吉林大学中日联谊医院 Multifunctional device for improving premature ovarian failure stem cell exosomes

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006022484A1 (en) 2006-05-13 2007-11-15 Texparts Gmbh clamping device

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49134936A (en) * 1973-05-09 1974-12-25
US4941314A (en) * 1988-08-31 1990-07-17 Odaware Industry Co., Ltd. Apparatus for treating tail yarn in textile spindle assembly
JPH0315562Y2 (en) * 1988-08-31 1991-04-04
DE19628826A1 (en) * 1996-07-17 1998-01-22 Lieser Gmbh Beteiligungsgesell Clamp unit for yarns for spindles
DE19746819A1 (en) * 1997-10-23 1999-04-29 Novibra Gmbh Control of under-winding of waste on self-cleaning ring spindle
EP0949366B1 (en) * 1998-04-09 2003-05-07 Zinser Textilmaschinen GmbH Apparatus for clamping an underwound yarn wrap on the spindle of a ring spinning or ring twisting machine
DE10211862A1 (en) * 2002-03-18 2003-10-02 Schlafhorst & Co W Centrifugal spinning device
DE102009023644A1 (en) * 2009-05-25 2010-12-02 Wilhelm Stahlecker Gmbh Thread clamping device for a spindle of a spinning or twisting machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006022484A1 (en) 2006-05-13 2007-11-15 Texparts Gmbh clamping device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2530041A1 (en) * 2011-05-31 2012-12-05 Maschinenfabrik Rieter AG Yarn nipping device for a spinning or twisting spindle

Also Published As

Publication number Publication date
KR20100057754A (en) 2010-06-01
JP2010121262A (en) 2010-06-03
EP2189408A3 (en) 2014-01-08
JP5380254B2 (en) 2014-01-08
TWI513648B (en) 2015-12-21
KR101629364B1 (en) 2016-06-13
EP2189408B1 (en) 2015-12-16
DE102008058655B4 (en) 2019-01-10
CN101899729A (en) 2010-12-01
ES2557102T3 (en) 2016-01-22
CN101899729B (en) 2013-08-28
TW201029910A (en) 2010-08-16
DE102008058655A1 (en) 2010-05-27

Similar Documents

Publication Publication Date Title
EP2189408B1 (en) Clamping device
EP2024265B1 (en) Clamping device
EP2530041B1 (en) Yarn nipping device for a spinning or twisting spindle
EP2256238B1 (en) Thread trapper device for a spindle of a spinning or thread machine
EP2881351A1 (en) Clamping device for clamping a thread on a spindle of a spinning or twisting machine, and spinning or twisting machine
DE19628826A1 (en) Clamp unit for yarns for spindles
EP3260406B1 (en) Thread clamping device
DE102005023928A1 (en) Friktionsfalschdrallaggregat
EP1957697A2 (en) Thread clamping device for lower winding threads on spindles of a ring spinning frame or ring twisting frame
EP3106550A1 (en) Spinning rotor for an open-end spinning device working with high rotor speeds
EP2157217B1 (en) Clamping device
DE19705872A1 (en) Ring spinner yarn balloon limit
DE19929582C2 (en) Backlash-free and centering sleeve coupling for the spindle of a textile machine
EP3257979B1 (en) Thread clamping device
DE4235024C2 (en) Thread take-off tube
DE102006021168B4 (en) Thread-separating device and method for producing a thread-separating device
DE19807740B4 (en) Spindle for a ring spinning or ring twisting machine
EP3686329A1 (en) Loading and unloading means for a thread clamping device and thread clamping device
CH692663A5 (en) Spindle for a spinning or ring twisting machine.
DE102008053811A1 (en) Device for clamping lower screw thread or spinning thread at spindle of textile machine, has circular free space provided between clamping ring and clamping piece, where free space is closed outwards in closing position
DE4410831A1 (en) Clamping device for a thread in a spinning machine
DE3533450A1 (en) LATHE ORGANIZING DEVICE FOR RINGLESS SPINNING
DE4410806A1 (en) Bearing assembly for non-tilting spinning spindle with min. yarn breaks
DE19819850A1 (en) with two flyer arms
DE8621275U1 (en) Twisting device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAURER COMPONENTS GMBH

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

AX Request for extension of the european patent

Extension state: AL BA RS

RIC1 Information provided on ipc code assigned before grant

Ipc: D01H 7/04 20060101ALI20131204BHEP

Ipc: D01H 1/38 20060101ALI20131204BHEP

Ipc: B65H 65/00 20060101AFI20131204BHEP

Ipc: D01H 1/40 20060101ALI20131204BHEP

17P Request for examination filed

Effective date: 20140708

RBV Designated contracting states (corrected)

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20150521

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

INTG Intention to grant announced

Effective date: 20150908

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 765456

Country of ref document: AT

Kind code of ref document: T

Effective date: 20160115

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2557102

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20160122

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502009011915

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20151216

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160316

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160317

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160416

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20160418

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502009011915

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

26N No opposition filed

Effective date: 20160919

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20161031

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20170630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20161031

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 765456

Country of ref document: AT

Kind code of ref document: T

Effective date: 20161031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20161031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20091031

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20151216

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 502009011915

Country of ref document: DE

Owner name: SAURER SPINNING SOLUTIONS GMBH & CO. KG, DE

Free format text: FORMER OWNER: SAURER COMPONENTS GMBH, 70736 FELLBACH, DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: SAURER SPINNING SOLUTIONS GMBH & CO. KG

Effective date: 20190327

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20231102

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: TR

Payment date: 20231024

Year of fee payment: 15

Ref country code: IT

Payment date: 20231030

Year of fee payment: 15

Ref country code: DE

Payment date: 20231030

Year of fee payment: 15

Ref country code: CZ

Payment date: 20230929

Year of fee payment: 15

Ref country code: CH

Payment date: 20231102

Year of fee payment: 15