EP3257979B1 - Thread clamping device - Google Patents

Thread clamping device Download PDF

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Publication number
EP3257979B1
EP3257979B1 EP17175058.1A EP17175058A EP3257979B1 EP 3257979 B1 EP3257979 B1 EP 3257979B1 EP 17175058 A EP17175058 A EP 17175058A EP 3257979 B1 EP3257979 B1 EP 3257979B1
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EP
European Patent Office
Prior art keywords
clamping element
clamping
thread
spindle
spinning
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EP17175058.1A
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German (de)
French (fr)
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EP3257979A1 (en
Inventor
Gottfried Staudenmaier
Josef Winter
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Saurer Spinning Solutions GmbH and Co KG
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Saurer Spinning Solutions GmbH and Co KG
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Publication of EP3257979A1 publication Critical patent/EP3257979A1/en
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    • 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
    • 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
    • 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 thread clamping device for a spindle of a spinning or twisting machine with a first clamping element stationarily arranged on the upper part of the spindle, a second clamping element mounted axially displaceably relative to the first clamping element and a loading device which acts on the second clamping element in the direction of the first clamping element as a result of spring force, and a relief device which, due to centrifugal force, positions the second clamping element at a distance from the first clamping element.
  • the ring rail is then moved relatively quickly downwards again to what is known as a winding point for the spindles, where it is braked again.
  • the threads are wound up again in several turns.
  • a disadvantage of such a method is that the underwinds remain on the winding points of the spindles and after a certain number of spinning head changes they can be removed from the underwind area with relatively great effort and often only with insufficient success.
  • the second clamping element has an inwardly inclined conical annular surface which, with the stationary first clamping element, delimits an annular chamber in which movably mounted centrifugal force elements are arranged.
  • the force exerted by the centrifugal force elements on the displaceable clamping element is greater than the spring force of the compression spring, which leads to a movement of the displaceably mounted second clamping element in the axial direction and thus to the opening of the thread clamping device.
  • this known thread clamping device when the speed of the spindle falls below the limit speed, this known thread clamping device returns to a clamping position in which the end faces of the two clamping elements are pressed against one another.
  • Thread clamping devices as shown in the DE 196 28 826 A1 are described have proven themselves in practice. However, difficulties often arise with these known thread clamping devices if, contrary to expectations, the thread clamping devices are soiled by thread remnants. This means that in this known thread clamping device it is not provided that the movably mounted second clamping element can be positioned in a cleaning position when the spindle is stationary.
  • the thread clamping device which, as usual, is arranged on a spindle upper part of a spindle of a spinning or twisting machine, has a fixed first clamping element, an axially displaceable second clamping element that can be pressed against the fixed first clamping element by spring force, and centrifugal elements. That is to say, the thread clamping device has receptacles on the side opposite the first clamping element in which centrifugal force elements are arranged. In addition, a compression spring is arranged between the receptacles and a stop surface of the second clamping element.
  • This improved thread clamping device has a large number of half-shells which extend in the radial direction and in which centrifugal force elements are arranged and are led.
  • One half of the half-shells is arranged on the displaceably mounted second clamping element and the other half of the respective corresponding half-shells is arranged on a fixedly arranged base element.
  • the half-shells of the displaceable second clamping element are also each equipped with a backdrop that is inclined to the horizontal, and the corresponding half-shells of the base element are each equipped with a horizontal backdrop.
  • the scenes of the half-shells of the displaceable second clamping element which are inclined to the horizontal are designed in such a way that, starting from the half-shell of the displaceable clamping element in the direction of the longitudinal axis of the upper spindle part, they have a different angle of inclination than starting from the base element in the direction of the clamping element which can be displaced in the direction of the half-shell.
  • the thread clamping device described has, as usual, a fixed first clamping element and a second clamping element which is mounted displaceably with respect to the first clamping element and which is acted upon by a loading element in the form of a helical spring in the direction of the first clamping element.
  • relief elements in the form of balls are also present here, which act on the second clamping element due to centrifugal force and ensure that the thread clamping device is opened and releases the thread from a certain spindle speed.
  • EP 2 881 351 A1 and JP 4 095711 B2 disclose conventional thread clamping devices.
  • the invention is based on the object of modifying a thread clamping device in such a way that, if necessary, the thread clamping device can be cleaned without problems.
  • a thread clamping device which has an underwinding sleeve which is arranged stationary on the upper part of the spindle and which is equipped with guide devices which, in conjunction with associated guide lugs on a movably mounted second clamping element, form a mechanical locking device for the second clamping element.
  • the inventive design of the thread clamping device has the particular advantage over the known thread clamping devices that the use of a mechanical locking device enables the movably mounted second clamping element to be reliably in a cleaning position if necessary, i.e. when the thread clamping device is soiled by thread remnants can be positioned in which the thread clamping device can be cleaned relatively easily.
  • the locking device is designed so that the movably mounted second clamping element can be easily positioned in a cleaning position if necessary, in which the movably mounted second clamping element is fixed at a distance from the stationary first clamping element. This means that when the spindle is at a standstill, the second clamping element can easily be positioned manually so that the area between the clamping elements is freely accessible and the entire thread clamping device can thus be easily and thoroughly cleaned.
  • the locking device is designed in the manner of a bayonet lock.
  • a bayonet lock is an advantageous quick coupling device that has proven itself in mechanical engineering for the secure connection and positioning of two cylindrical components 90 ° a reliable fixation of the second clamping element in a predetermined position on the stationary underwinding sleeve.
  • the guide devices arranged in the underwinding sleeve are designed as link guides. That is, the stationary underwinding sleeve has link guides which, in conjunction with associated guide lugs on the movably mounted second clamping element, form a reliable locking device.
  • Such a design enables the thread clamping device to be opened manually in a simple manner, whereby the movably mounted second clamping element can be fixed in a cleaning position by pulling it down and then rotating it, for example 90 °, in which a quick and easy removal of any thread remnants is possible.
  • the guide devices arranged in the underwinding sleeve are designed as link guides which each have at least one vertically extending first guide section and an at least partially horizontally extending second guide section.
  • Link guides designed in this way are popular and proven gear elements in mechanical engineering which, in conjunction with a counter element, for example a so-called sliding block, enable reliable positioning of the gear element.
  • link guides in the underwinding sleeve in conjunction with the associated guide lugs on the movably mounted second clamping element, represent a simple and reliable switching and locking device that enables the movably mounted second clamping element to be securely fixed in a predetermined cleaning position.
  • the underwinding sleeve preferably has at least two of these guide devices designed as link guides. However, it is not absolutely necessary to limit the number of backdrop guides.
  • an underwinding sleeve can also have, for example, three link guides arranged offset by 120 ° or four link guides offset by 90 °.
  • spinning or twisting machines generally have a large number of identical work stations arranged at a relatively short distance from one another in the area of the machine longitudinal sides of the textile machines, so-called spinning stations 1 in ring spinning machines.
  • Each of these spinning stations 1 has a rotatably mounted, drivable spindle 2, each of which serves the purpose of providing a thread 13 supplied by an upstream drafting device with a certain thread twist and winding it onto a spinning tube 6.
  • the spindles 2 of spinning or twisting machines are usually driven either by a single motor or, as in the exemplary embodiment, by means of a revolving drive belt 11 which acts on a whorl 12 of the spindle 2 (so-called envelope drive).
  • spindles 2 each have a rotatably mounted upper spindle part 3 and a non-rotating bearing housing 4, which is connected in a stationary manner to a spindle bank (not shown in detail).
  • the upper spindle part 3 has a so-called spindle shaft 5 which, as is known, is rotatably mounted in the bearing housing 4 by means of a foot bearing and a neck bearing.
  • the upper part of the spindle 3 is also equipped in its upper area with coupling means (not shown) which serve to receive a spinning tube 6 onto which the spun thread 13 is wound to form a spinning cop 7.
  • the winding process is carried out in a known manner by oscillating lifting movements of the so-called ring rail 8, which extends over a plurality of spinning stations 1 arranged next to one another on a longitudinal side of the machine.
  • a stationary spinning ring 9 is installed on the ring rail 8 in the area of each spindle 2, on which a so-called ring traveler 10 rotates in a known manner, which during the winding process through the running thread connected to the rotating spindle 2 via the spinning tube 6 13 is driven.
  • the spindles 2 of such spinning or twisting machines are also each equipped with a thread clamping device 14 according to the invention, which is used in the context of a spinning tube change. That is, the thread clamping device 14 is required when the spinning cops 7 of the spindles 2 are completed and have to be withdrawn together upwards from their spindles 2 and replaced by new spinning tubes 6.
  • the thread clamping device 14 in the exemplary embodiment has, as essential components, a stationary first clamping element 15 fixed on the upper spindle part 3 of the spindle 2, a lower winding sleeve 16 also fixed on the upper spindle part 3, a spring element 17, for example a leaf spring element, which can be connected to the lower winding sleeve 16, as well as a displaceably mounted, in the assembled state functionally connected to the spring element 17, second clamping element 18, a so-called sliding sleeve.
  • the thread clamping device 14 also has a cover element 19 and a bottom part 21 fastened to the upper spindle part 3, which during the spinning operation ensure that the leaf spring element 17 of the thread clamping device 14 is protected from dirt downwards.
  • the underwinding sleeve 16 is equipped with at least two bearing devices 24 for the spring element 17 and with receptacles 27 for the centrifugal force elements 26 connected to the spring element 17.
  • the spring element 17 is mounted so as to be movable to a limited extent by means of pin-like, inwardly pointing projections 25, secured radially and axially.
  • centrifugal force elements 26 are also attached to the spring element 17, for example by screw or clip connections, which are directed inward due to the bending stress of the pre-bent spring element 17.
  • centrifugal force elements 26 are, for example, in FIG Fig. 1 shown, in the assembled state and, as long as the spindle 2 does not exceed a certain spindle speed, pivoted into the receptacles 27 of the underwinding sleeve 16.
  • the underwinding sleeve 16 also has in its upper area some, at least two, link guides 22 which, in the assembled state, correspond to corresponding guide lugs 23 on the movably mounted, second clamping element 18 and form a locking device.
  • the link guides 22 of the underwinding sleeve 16, in conjunction with the guide lugs 23 of the movably mounted second clamping element 18, enable the clamping element 18, as in FIG Fig. 2 shown, can be positioned in a cleaning position RS, in which the clamping elements 15, 18 are clearly spaced from one another.
  • the thread clamping device 14 remains in this cleaning position RS until the cleaning position is canceled again by appropriate manual actuation of the second clamping element 18.

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

Description

Die Erfindung betrifft eine Fadenklemmvorrichtung für eine Spindel einer Spinn- oder Zwirnmaschine mit einem am Spindeloberteil stationär angeordneten ersten Klemmelement, einem relativ zum ersten Klemmelement axial verschiebbar gelagerten zweiten Klemmelement und einer Belastungseinrichtung, die das zweite Klemmelement federkraftbedingt in Richtung des ersten Klemmelementes beaufschlagt sowie einer Entlastungseinrichtung, die fliehkraftbedingt das zweite Klemmelement beabstandet zum ersten Klemmelement positioniert.The invention relates to a thread clamping device for a spindle of a spinning or twisting machine with a first clamping element stationarily arranged on the upper part of the spindle, a second clamping element mounted axially displaceably relative to the first clamping element and a loading device which acts on the second clamping element in the direction of the first clamping element as a result of spring force, and a relief device which, due to centrifugal force, positions the second clamping element at a distance from the first clamping element.

Bekanntlich wird bei Ringspinnmaschinen nach dem Fertigstellen der Spinnkopse wenigstens einer Maschinenlängsseite zunächst ein sogenanntes Abspinnen durchgeführt, durch das die betroffene Maschinenlängsseite der Ringspinnmaschine für einen nachfolgenden Spinnkopswechsel vorbereitet wird.It is known that in ring spinning machines after the completion of the spinning cops of at least one longitudinal side of the machine, so-called spinning is first carried out, by means of which the affected longitudinal side of the ring spinning machine is prepared for a subsequent spinning cop change.

In diesem Zusammenhang ist es bei Ringspinnmaschinen seit langem üblich, dass nach Fertigstellung der Spinnkopse einer Maschinenlängsseite die Ringbank aus einer oberen Stellung verhältnismäßig rasch zum unteren Bereich der Spinnhülsen der Spinnkopse gefahren wird und dabei die Fäden jeweils in relativ steilen Schraubenlinien über die Oberflächen der Spinnkopse nach unten geführt werden. Die Ringbank wird dann in dieser Stellung abgebremst, mit der Folge, dass sich die Fäden jeweils in mehreren Windungen quer über die Spinnkopse legen. Durch diese sogenannten Hinterwindungen werden die Fäden der Spinnkopse für nachfolgende Weitertransporte gesichert.In this context, it has long been customary in ring spinning machines that after the completion of the spinning cops on one longitudinal side of the machine, the ring rail is moved relatively quickly from an upper position to the lower area of the spinning tubes of the spinning cops, with the threads moving in relatively steep helical lines over the surfaces of the spinning cops below. The ring rail is then braked in this position, with the result that the threads lay in several turns across the spinning cops. These so-called back windings secure the threads of the spinning cops for subsequent further transport.

Anschließend wird die Ringbank relativ schnell erneut etwas nach unten zu einer sogenannten Aufwickelstelle der Spindeln gefahren und dort erneut abgebremst. Im Bereich der Aufwickelstellen der Spindeln werden dabei die Fäden erneut in mehreren Windungen aufgewickelt.The ring rail is then moved relatively quickly downwards again to what is known as a winding point for the spindles, where it is braked again. In the area of the winding points of the spindles, the threads are wound up again in several turns.

Diese auf den sogenannten Aufwickelstellen der Spindeln festgelegten Unterwindungen bilden jeweils einen Anspinnfaden, der nach dem Spinnkopswechsel zum Wiederanspinnen benötigt wird. Das heißt, nach dem Abziehen der fertiggestellten Spinnkopse von den Spindeln der Ringspinnmaschine, bei dem die Fäden jeweils zwischen Hinterwindung und Unterwindung getrennt werden, und dem Aufsetzen neuer Spinnhülsen wird die Ringbank wieder nach oben in den unteren Bereich der Spinnhülsen gefahren und werden die Anspinnfäden an die neuen Spinnhülsen gewickelt.These underwinds fixed on the so-called winding points of the spindles each form a piecing thread that is required for re-spinning after changing the spinning head. That is, after the completed spinning heads have been withdrawn from the spindles of the ring spinning machine, in which the threads are wound between each other and underwinding are separated, and when new spinning tubes are placed, the ring rail is moved back up into the lower area of the spinning tubes and the piecing threads are wound onto the new spinning tubes.

Nachteilig bei einem solchen Verfahren ist, dass die Unterwindungen auf den Aufwickelstellen der Spindeln verbleiben und diese nach einer bestimmten Anzahl von Spinnkopswechseln relativ aufwendig und oft nur mit unzureichendem Erfolg aus dem Unterwindebereich entfernt werden können.A disadvantage of such a method is that the underwinds remain on the winding points of the spindles and after a certain number of spinning head changes they can be removed from the underwind area with relatively great effort and often only with insufficient success.

Um die Spinnkopswechsel zu erleichtern, insbesondere die aufwendige Reinigung der Aufwickelstellen der Spindeln zu vermeiden, sind deshalb in der Vergangenheit bereits verschiedene Vorschläge unterbreitet worden, im Unterwindebereich einer Spindel eine Fadenklemmvorrichtung anzuordnen, die ein temporäres Fixieren des Fadens ermöglicht und damit ein Aufwinden des Fadens auf den Unterwindebereich der Spindel überflüssig macht.In order to make it easier to change the spinning head, in particular to avoid the time-consuming cleaning of the winding points of the spindles, various proposals have already been made in the past to arrange a thread clamping device in the underwinding area of a spindle, which enables the thread to be temporarily fixed and thus the thread to be wound up makes the underwinding area of the spindle superfluous.

In der DE 196 28 826 A1 ist eine solche im Unterwindebereich einer Spindel angeordnete Fadenklemmvorrichtung beschrieben, die ein auf einem Wirtel einer Spindel fest angeordnetes erstes Klemmelement und ein axial zur Längsachse der Spindel verschiebbar gelagertes zweites Klemmelement aufweist.
Die Klemmelemente werden durch eine Druckfeder, die sich am verschiebbar gelagerten zweiten Klemmelement und dem Wirtel abstützt, gegeneinander gepresst, so dass zwischen den Klemmelementen ein Klemmmoment gegeben ist.In the DE 196 28 826 A1 describes such a thread clamping device arranged in the underwinding area of a spindle, which has a first clamping element fixedly arranged on a whorl of a spindle and a second clamping element mounted axially to the longitudinal axis of the spindle.
The clamping elements are pressed against one another by a compression spring, which is supported on the displaceably mounted second clamping element and the whorl, so that there is a clamping moment between the clamping elements.

Bei dieser bekannten Fadenklemmvorrichtung weist das zweite Klemmelement eine nach innen geneigte konische Ringfläche auf, die mit dem feststehenden ersten Klemmelement eine Ringkammer begrenzt, in welcher beweglich gelagerte Fliehkraftelemente angeordnet sind.In this known thread clamping device, the second clamping element has an inwardly inclined conical annular surface which, with the stationary first clamping element, delimits an annular chamber in which movably mounted centrifugal force elements are arranged.

Bei Überschreitung einer Grenzdrehzahl der Spindel ist die von den Fliehkraftelementen auf das verschiebbare Klemmelement aufgebrachte Kraft größer als die Federkraft der Druckfeder, was zu einer Bewegung des verschiebbar gelagerten zweiten Klemmelementes in axialer Richtung und dadurch zum Öffnen der Fadenklemmvorrichtung führt.When a limit speed of the spindle is exceeded, the force exerted by the centrifugal force elements on the displaceable clamping element is greater than the spring force of the compression spring, which leads to a movement of the displaceably mounted second clamping element in the axial direction and thus to the opening of the thread clamping device.

Entsprechend geht diese bekannte Fadenklemmvorrichtung bei Unterschreitung der Grenzdrehzahl der Spindel wieder in eine Klemmstellung, in der die Stimflächen der beiden Klemmelemente gegeneinander gepresst werden.Correspondingly, when the speed of the spindle falls below the limit speed, this known thread clamping device returns to a clamping position in which the end faces of the two clamping elements are pressed against one another.

Fadenklemmvorrichtungen, wie sie in der DE 196 28 826 A1 beschrieben sind, haben sich in der Praxis durchaus bewährt. Allerdings treten bei diesen bekannten Fadenklemmvorrichtungen oft Schwierigkeiten auf, wenn die Fadenklemmvorrichtungen wider Erwarten durch Fadenreste verschmutzt werden. Das heißt, bei dieser bekannten Fadenklemmvorrichtung ist nicht vorgesehen, dass das beweglich gelagerte zweite Klemmelement bei stillstehender Spindel in einer Reinigungsstellung positioniert werden kann.Thread clamping devices as shown in the DE 196 28 826 A1 are described have proven themselves in practice. However, difficulties often arise with these known thread clamping devices if, contrary to expectations, the thread clamping devices are soiled by thread remnants. This means that in this known thread clamping device it is not provided that the movably mounted second clamping element can be positioned in a cleaning position when the spindle is stationary.

Auch in der durch die DE 10 2006 022 484 A1 , DE 10 2008 058 655 A1 und/oder EP 2 530 041 A1 bekannten Patentliteratur, die ebenfalls automatisch arbeitende, im Unterwindebereich der Spindeln einer Spinn- oder Zwirnmaschine installierte Fadenklemmvorrichtungen betrifft, die das Aufbringen von Unterwindematerial auf die Aufwickelstellen der Spindeln überflüssig machen, ist nirgends beschrieben, wie zu verfahren ist, wenn die Fadenklemmvorrichtungen wider Erwarten durch Fadenreste verschmutzt sind.Also in the by the DE 10 2006 022 484 A1 , DE 10 2008 058 655 A1 and or EP 2 530 041 A1 Known patent literature, which also relates to automatically operating thread clamping devices installed in the underwinding area of the spindles of a spinning or twisting machine, which make the application of underwinding material to the winding points of the spindles superfluous, is nowhere described how to proceed when the thread clamping devices, contrary to expectations, due to thread remnants are dirty.

Die Fadenklemmvorrichtung gemäß DE 10 2006 022 484 A1 , die, wie üblich, an einem Spindeloberteil einer Spindel einer Spinn- oder Zwirnmaschine angeordnet ist, verfügt über ein feststehendes erstes Klemmelement, ein axial verschiebbar gelagertes, gegen das feststehende erste Klemmelement durch Federkraft anpressbares zweites Klemmelement sowie über Fliehkraftelemente. Das heißt, die Fadenklemmvorrichtung weist auf der dem ersten Klemmelement gegenüberliegenden Seite Aufnahmen auf, in denen Fliehkraftelemente angeordnet sind. Außerdem ist zwischen den Aufnahmen und einer Anschlagfläche des zweiten Klemmelementes eine Druckfeder angeordnet.The thread clamping device according to DE 10 2006 022 484 A1 , which, as usual, is arranged on a spindle upper part of a spindle of a spinning or twisting machine, has a fixed first clamping element, an axially displaceable second clamping element that can be pressed against the fixed first clamping element by spring force, and centrifugal elements. That is to say, the thread clamping device has receptacles on the side opposite the first clamping element in which centrifugal force elements are arranged. In addition, a compression spring is arranged between the receptacles and a stop surface of the second clamping element.

Die in der DE 10 2008 058 655 A1 beschriebene Fadenklemmvorrichtung stellt im Wesentlichen eine Weiterentwicklung der vorstehend beschriebenen Fadenklemmvorrichtung dar.The one in the DE 10 2008 058 655 A1 The thread clamping device described is essentially a further development of the thread clamping device described above.

Diese verbesserte Fadenklemmvorrichtung verfügt über eine Vielzahl sich in radialer Richtung erstreckender Halbschalen, in denen Fliehkraftelemente angeordnet und geführt sind. Eine Hälfte der Halbschalen ist dabei jeweils an dem verschiebbar gelagerten zweiten Klemmelement und die andere Hälfte der jeweils korrespondierenden Halbschalen an einem fest angeordneten Sockelelement angeordnet.This improved thread clamping device has a large number of half-shells which extend in the radial direction and in which centrifugal force elements are arranged and are led. One half of the half-shells is arranged on the displaceably mounted second clamping element and the other half of the respective corresponding half-shells is arranged on a fixedly arranged base element.

Die Halbschalen des verschiebbaren zweiten Klemmelementes sind außerdem jeweils mit einer zur Horizontalen geneigten Kulisse und die korrespondierenden Halbschalen des Sockelelementes jeweils mit einer horizontalen Kulisse ausgestattet.The half-shells of the displaceable second clamping element are also each equipped with a backdrop that is inclined to the horizontal, and the corresponding half-shells of the base element are each equipped with a horizontal backdrop.

Des Weiteren sind die zur Horizontalen geneigten Kulissen der Halbschalen des verschiebbaren zweiten Klemmelementes derart ausgebildet, 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 Halbschaledes verschiebbaren Klemmelementes.Furthermore, the scenes of the half-shells of the displaceable second clamping element which are inclined to the horizontal are designed in such a way that, starting from the half-shell of the displaceable clamping element in the direction of the longitudinal axis of the upper spindle part, they have a different angle of inclination than starting from the base element in the direction of the clamping element which can be displaced in the direction of the half-shell.

Auch die in der EP 2 530 041 A1 beschriebene Fadenklemmvorrichtung verfügt, wie üblich, über ein feststehendes erstes Klemmelement sowie ein bezüglich des ersten Klemmelementes verschiebbar gelagertes zweites Klemmelement, das durch ein Belastungselement in Form einer Schraubenfeder in Richtung des ersten Klemmelements beaufschlagt wird.Even those in the EP 2 530 041 A1 The thread clamping device described has, as usual, a fixed first clamping element and a second clamping element which is mounted displaceably with respect to the first clamping element and which is acted upon by a loading element in the form of a helical spring in the direction of the first clamping element.

Außerdem sind auch hier Entlastungselemente in Form von Kugeln vorhanden, die das zweite Klemmelement fliehkraftbedingt beaufschlagen und dafür sorgen, dass die Fadenklemmvorrichtung ab einer bestimmten Spindeldrehzahl geöffnet wird und den Faden freigibt.In addition, relief elements in the form of balls are also present here, which act on the second clamping element due to centrifugal force and ensure that the thread clamping device is opened and releases the thread from a certain spindle speed.

Wie vorstehend bereits angedeutet, haben sich diese bekannten Fadenklemmvorrichtungen in der Praxis mehr oder weniger bewährt, weisen aber alle den Nachteil auf, dass sie im Bedarfsfall nur sehr schwierig zu reinigen sind.As already indicated above, these known thread clamping devices have more or less proven themselves in practice, but all have the disadvantage that they are very difficult to clean if necessary.

EP 2 881 351 A1 und JP 4 095711 B2 offenbaren herkömmliche Fadenklemmvorrichtungen. EP 2 881 351 A1 and JP 4 095711 B2 disclose conventional thread clamping devices.

Der Erfindung liegt, ausgehend von Fadenklemmvorrichtungen der vorstehend beschriebenen Gattung, die Aufgabe zu Grunde, eine Fadenklemmvorrichtung derart zu modifizieren, dass im Bedarfsfall eine problemlose Reinigung der Fadenklemmvorrichtung möglich ist.Based on thread clamping devices of the type described above, the invention is based on the object of modifying a thread clamping device in such a way that, if necessary, the thread clamping device can be cleaned without problems.

Diese Aufgabe wird erfindungsgemäß durch eine Fadenklemmvorrichtung gelöst, die über eine am Spindeloberteil stationär angeordnete Unterwindehülse verfügt, die mit Führungseinrichtungen ausgestattet ist, die in Verbindung mit zugehörigen Führungsansätzen an einem beweglich gelagerten zweiten Klemmelement eine mechanische Arretiereinrichtung für das zweite Klemmelement bilden.This object is achieved according to the invention by a thread clamping device which has an underwinding sleeve which is arranged stationary on the upper part of the spindle and which is equipped with guide devices which, in conjunction with associated guide lugs on a movably mounted second clamping element, form a mechanical locking device for the second clamping element.

Vorteilhafte Ausgestaltungen der erfindungsgemäßen Fadenklemmvorrichtung sind Gegenstand der Unteransprüche.Advantageous configurations of the thread clamping device according to the invention are the subject of the subclaims.

Die erfindungsgemäße Ausbildung der Fadenklemmvorrichtung weist gegenüber den bekannten Fadenklemmvorrichtungen insbesondere den Vorteil auf, dass durch den Einsatz einer mechanischen Arretiereinrichtung ermöglicht wird, dass das beweglich gelagerte zweite Klemmelement, wenn notwendig, das heißt, wenn die Fadenklemmvorrichtung durch Fadenreste verschmutzt ist, zuverlässig in einer Reinigungsstellung positioniert werden kann, in der die Fadenklemmvorrichtung relativ leicht gereinigt werden kann.The inventive design of the thread clamping device has the particular advantage over the known thread clamping devices that the use of a mechanical locking device enables the movably mounted second clamping element to be reliably in a cleaning position if necessary, i.e. when the thread clamping device is soiled by thread remnants can be positioned in which the thread clamping device can be cleaned relatively easily.

Erfindungsgemäß, ist dabei vorgesehen, dass die Arretiereinrichtung so ausgebildet ist, dass das beweglich gelagerte zweite Klemmelement im Bedarfsfall problemlos in einer Reinigungsstellung positionierbar ist, in der das beweglich gelagerte zweite Klemmelement beabstandet zum stationär angeordneten ersten Klemmelement fixiert ist. Das heißt, bei stillstehender Spindel kann das zweite Klemmelement problemlos manuell so positioniert werden, dass der Bereich zwischen den Klemmelementen frei zugängig ist und somit eine leichte und gründliche Reinigung der gesamten Fadenklemmvorrichtung möglich ist.According to the invention, it is provided that the locking device is designed so that the movably mounted second clamping element can be easily positioned in a cleaning position if necessary, in which the movably mounted second clamping element is fixed at a distance from the stationary first clamping element. This means that when the spindle is at a standstill, the second clamping element can easily be positioned manually so that the area between the clamping elements is freely accessible and the entire thread clamping device can thus be easily and thoroughly cleaned.

Vorzugsweise ist des Weiteren vorgesehen, dass die Arretiereinrichtung nach Art eines Bajonettverschlusses ausgebildet ist. Ein solcher Bajonettverschluss stellt eine vorteilhafte, im Maschinenbau bewährte Schnellkupplungseinrichtung zum sicheren Verbinden und Positionieren zweier zylindrischer Bauteile dar. Das heißt, die Ausbildung der Arretiereinrichtung als Bajonettverschluss ermöglicht durch eine axiale Verlagerung des beweglich gelagerten zweiten Klemmelementes auf der Unterwindehülse sowie eine anschließende Drehung um zum Beispiel 90° eine zuverlässige Fixierung des zweiten Klemmelementes in einer vorgegebenen Stellung auf der stationären Unterwindehülse.It is also preferably provided that the locking device is designed in the manner of a bayonet lock. Such a bayonet lock is an advantageous quick coupling device that has proven itself in mechanical engineering for the secure connection and positioning of two cylindrical components 90 ° a reliable fixation of the second clamping element in a predetermined position on the stationary underwinding sleeve.

In dieser so genannten Reinigungsstellung ist dann ein schnelles und unproblematisches Entfernen eventuell im Bereich der Fadenklemmvorrichtung vorhandener Fadenreste möglich.In this so-called cleaning position, it is then possible to quickly and easily remove any thread remnants that may be present in the area of the thread clamping device.

In vorteilhafter Ausführungsform ist außerdem vorgesehen, dass die in der Unterwindehülse angeordneten Führungseinrichtungen als Kulissenführungen ausgebildet sind. Das heißt, die stationäre Unterwindehülse verfügt über Kulissenführungen, die in Verbindung mit zugehörigen Führungsansätzen am beweglich gelagerten zweiten Klemmelement eine zuverlässige Arretiereinrichtung bilden.In an advantageous embodiment it is also provided that the guide devices arranged in the underwinding sleeve are designed as link guides. That is, the stationary underwinding sleeve has link guides which, in conjunction with associated guide lugs on the movably mounted second clamping element, form a reliable locking device.

Eine solche Ausbildung ermöglicht auf einfache Weise ein manuelles Öffnen der Fadenklemmvorrichtung, wobei das beweglich gelagerte zweite Klemmelement durch Herunterziehen und anschließendes Drehen um zum Beispiel 90° in einer Reinigungsstellung festlegbar ist, in der ein schnelles und unproblematisches Entfernen eventuell vorhandener Fadenreste möglich ist.Such a design enables the thread clamping device to be opened manually in a simple manner, whereby the movably mounted second clamping element can be fixed in a cleaning position by pulling it down and then rotating it, for example 90 °, in which a quick and easy removal of any thread remnants is possible.

In weiterer vorteilhafter Ausführungsform ist außerdem vorgesehen, dass die in der Unterwindehülse angeordneten Führungseinrichtungen als Kulissenführungen ausgebildet sind, die jeweils wenigstens einen vertikal verlaufenden ersten Führungsabschnitt sowie einen wenigstens teilweise horizontal verlaufenden zweiten Führungsabschnitt aufweisen.In a further advantageous embodiment it is also provided that the guide devices arranged in the underwinding sleeve are designed as link guides which each have at least one vertically extending first guide section and an at least partially horizontally extending second guide section.

Derartig ausgebildete Kulissenführungen sind im Maschinenbau beliebte und bewährte Getriebeelemente, die in Verbindung mit einem Gegenelement, zum Beispiels einem so genannten Kulissenstein, eine zuverlässige Positionierung des Getriebeelementes ermöglichen.Link guides designed in this way are popular and proven gear elements in mechanical engineering which, in conjunction with a counter element, for example a so-called sliding block, enable reliable positioning of the gear element.

Durch derartige Kulissenführungen sind dabei sowohl relativ komplizierte, als auch, wie im vorliegenden Fall, verhältnismäßig einfache Bewegungsbahnen realisierbar.By means of such link guides, both relatively complicated and, as in the present case, relatively simple movement paths can be realized.

Das bedeutet, die Kulissenführungen in der Unterwindehülse stellen in Verbindung mit zugehörigen Führungsansätzen am beweglich gelagerten zweiten Klemmelement eine einfache und zuverlässige Schalt- und Arretiereinrichtung dar, die eine sichere Fixierung des beweglich gelagerten zweiten Klemmelementes in einer vorgegebenen Reinigungsstellung ermöglicht. Vorzugsweise weist die Unterwindehülse wenigstens zwei dieser als Kulissenführungen ausgebildeten Führungseinrichtungen auf. Allerdings ist es nicht zwingend notwendig, die Anzahl der Kulissenführungen zu begrenzen.This means that the link guides in the underwinding sleeve, in conjunction with the associated guide lugs on the movably mounted second clamping element, represent a simple and reliable switching and locking device that enables the movably mounted second clamping element to be securely fixed in a predetermined cleaning position. The underwinding sleeve preferably has at least two of these guide devices designed as link guides. However, it is not absolutely necessary to limit the number of backdrop guides.

Das heißt, anstelle von zwei um 180° versetzt angeordneten Kulissenführungen kann eine Unterwindehülse beispielsweise auch drei um 120° oder vier um 90° versetzt angeordnete Kulissenführungen aufweisen.That is, instead of two link guides arranged offset by 180 °, an underwinding sleeve can also have, for example, three link guides arranged offset by 120 ° or four link guides offset by 90 °.

Weitere Einzelheiten der Erfindung sind nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.Further details of the invention are explained in more detail below on the basis of an exemplary embodiment shown in the drawings.

Es zeigt:

Fig. 1A
eine erfindungsgemäße, an einem Spindeloberteil einer Spindel angeordnete Fadenklemmvorrichtung während des Abspinnprozesses, das heißt, die Fadenklemmvorrichtung ist geschlossen und zwischen ihren Klemmelementen ist ein Faden fixiert,
Fig. 2
die erfindungsgemäße Fadenklemmvorrichtung in einer Reinigungsstellung, in der das beweglich gelagerte zweite Klemmelement in einem relativ großen Abstand zum stationären ersten Klemmelement positioniert ist,
Fig. 3
eine Explosionsgrafik der erfindungsgemäße Fadenklemmvorrichtung.
It shows:
Figure 1A
a thread clamping device according to the invention, arranged on a spindle upper part of a spindle, during the spinning process, that is, the thread clamping device is closed and a thread is fixed between its clamping elements,
Fig. 2
the thread clamping device according to the invention in a cleaning position in which the movably mounted second clamping element is positioned at a relatively large distance from the stationary first clamping element,
Fig. 3
an exploded view of the thread clamping device according to the invention.

Wie bekannt, weisen Spinn- oder Zwirnmaschinen in der Regel eine Vielzahl identischer, im Bereich der Maschinenlängsseiten der Textilmaschinen in relativ kurzem Abstand zueinander angeordneter Arbeitsstellen, bei Ringspinnmaschinen so genannte Spinnstellen 1, auf. Jede dieser Spinnstellen 1 verfügt über eine rotierbar gelagerte, antreibbare Spindel 2, die jeweils dem Zwecke dient, einen von einem vorgeschalteten Streckwerk gelieferten Faden 13 mit einem bestimmten Fadendrall zu versehen und auf eine Spinnhülse 6 zu wickeln. Die Spindeln 2 von Spinn- oder Zwirnmaschinen werden dabei üblicherweise entweder einzelmotorisch oder, wie im Ausführungsbeispiel, mittels eines umlaufenden Antriebsriemens 11, der einen Wirtel 12 der Spindel 2 beaufschlagt (so genannter Hülltrieb), angetrieben.As is known, spinning or twisting machines generally have a large number of identical work stations arranged at a relatively short distance from one another in the area of the machine longitudinal sides of the textile machines, so-called spinning stations 1 in ring spinning machines. Each of these spinning stations 1 has a rotatably mounted, drivable spindle 2, each of which serves the purpose of providing a thread 13 supplied by an upstream drafting device with a certain thread twist and winding it onto a spinning tube 6. The spindles 2 of spinning or twisting machines are usually driven either by a single motor or, as in the exemplary embodiment, by means of a revolving drive belt 11 which acts on a whorl 12 of the spindle 2 (so-called envelope drive).

Wie in der Fig. 1 dargestellt, weisen derartige Spindeln 2 jeweils ein rotierbar gelagertes Spindeloberteil 3 sowie ein nicht rotierendes Lagergehäuse 4 auf, welches stationär an eine (nicht näher dargestellte) Spindelbank angeschlossen ist.Like in the Fig. 1 shown, such spindles 2 each have a rotatably mounted upper spindle part 3 and a non-rotating bearing housing 4, which is connected in a stationary manner to a spindle bank (not shown in detail).

Das Spindeloberteil 3 verfügt dabei über einen sogenannten Spindelschaft 5, der, wie bekannt, mittels eines Fußlagers und eines Halslagers im Lagergehäuse 4 rotierbar gelagert ist.The upper spindle part 3 has a so-called spindle shaft 5 which, as is known, is rotatably mounted in the bearing housing 4 by means of a foot bearing and a neck bearing.

Das Spindeloberteil 3 ist in seinem oberen Bereich außerdem mit (nicht dargestellten) Kupplungsmitteln ausgestattet, die der Aufnahme einer Spinnhülse 6 dienen, auf die der gesponnene Faden 13 zu einem Spinnkops 7 aufgewickelt wird.The upper part of the spindle 3 is also equipped in its upper area with coupling means (not shown) which serve to receive a spinning tube 6 onto which the spun thread 13 is wound to form a spinning cop 7.

Der Aufwindevorgang wird in bekannter Weise durch changierende Hubbewegungen der so genannten Ringbank 8 durchgeführt, die sich über eine Vielzahl von nebeneinander angeordneten Spinnstellen 1 einer Maschinenlängsseite erstreckt.The winding process is carried out in a known manner by oscillating lifting movements of the so-called ring rail 8, which extends over a plurality of spinning stations 1 arranged next to one another on a longitudinal side of the machine.

Wie in der Fig. 1 des Weiteren dargestellt, ist auf der Ringbank 8 im Bereich jeder Spindel 2 ein stationärer Spinnring 9 installiert, auf dem in bekannter Weise ein sogenannter Ringläufer 10 umläuft, der während des Aufwindevorganges durch den laufenden, über die Spinnhülse 6 mit der rotierenden Spindel 2 verbundenen Faden 13 angetrieben wird.Like in the Fig. 1 Also shown, a stationary spinning ring 9 is installed on the ring rail 8 in the area of each spindle 2, on which a so-called ring traveler 10 rotates in a known manner, which during the winding process through the running thread connected to the rotating spindle 2 via the spinning tube 6 13 is driven.

Die Spindeln 2 derartiger Spinn- oder Zwirnmaschinen sind des Weiteren jeweils mit einer erfindungsgemäßen Fadenklemmvorrichtung 14 ausgestattet, die im Rahmen eines Spinnhülsenwechsels zum Einsatz kommt. Das heißt, die Fadenklemmvorrichtung 14 wird benötigt, wenn die Spinnkopse 7 der Spindeln 2 fertiggestellt sind und gemeinsam nach oben von ihren Spindeln 2 abgezogen und durch neue Spinnhülsen 6 ersetzt werden müssen.The spindles 2 of such spinning or twisting machines are also each equipped with a thread clamping device 14 according to the invention, which is used in the context of a spinning tube change. That is, the thread clamping device 14 is required when the spinning cops 7 of the spindles 2 are completed and have to be withdrawn together upwards from their spindles 2 and replaced by new spinning tubes 6.

Wie insbesondere aus der Fig.3 gut ersichtlich, weist die Fadenklemmvorrichtung 14 im Ausführungsbeispiel als wesentliche Bestandteile ein am Spindeloberteil 3 der Spindel 2 festgelegtes, stationäres erstes Klemmelement 15, eine ebenfalls am Spindeloberteil 3 festgelegte Unterwindehülse 16, ein an die Unterwindehülse 16 anschließbares Federelement 17, beispielsweise ein Blattfederelement, sowie ein verschiebbar gelagertes, im Montagezustand funktionell mit dem Federelement 17 verbundenes, zweites Klemmelement 18, eine sogenannte Schiebehülse, auf.As in particular from the Fig. 3 As can clearly be seen, the thread clamping device 14 in the exemplary embodiment has, as essential components, a stationary first clamping element 15 fixed on the upper spindle part 3 of the spindle 2, a lower winding sleeve 16 also fixed on the upper spindle part 3, a spring element 17, for example a leaf spring element, which can be connected to the lower winding sleeve 16, as well as a displaceably mounted, in the assembled state functionally connected to the spring element 17, second clamping element 18, a so-called sliding sleeve.

Die Fadenklemmvorrichtung 14 verfügt außerdem über ein Deckelelement 19 sowie über ein am Spindeloberteil 3 befestigtes Bodenteil 21, die während des Spinnbetriebes dafür sorgen, dass das Blattfederelement 17 der Fadenklemmvorrichtung 14 nach unten gegen Verschmutzung geschützt ist.The thread clamping device 14 also has a cover element 19 and a bottom part 21 fastened to the upper spindle part 3, which during the spinning operation ensure that the leaf spring element 17 of the thread clamping device 14 is protected from dirt downwards.

Wie weiter ersichtlich, ist die Unterwindehülse 16 mit wenigstens zwei Lagereinrichtungen 24 für das Federelement 17 sowie mit Aufnahmen 27 für die an das Federelement 17 angeschlossenen Fliehkraftelemente 26 ausgestattet.As can also be seen, the underwinding sleeve 16 is equipped with at least two bearing devices 24 for the spring element 17 and with receptacles 27 for the centrifugal force elements 26 connected to the spring element 17.

In den Lagereinrichtungen 24 der Unterwindehülse 16 ist im Montagezustand das Federelement 17 mittels zapfenartiger, nach innen weisenden Ansätzen 25, radial und axial gesichert, begrenzt beweglich gelagert.In the mounting device 24 of the underwinding sleeve 16, the spring element 17 is mounted so as to be movable to a limited extent by means of pin-like, inwardly pointing projections 25, secured radially and axially.

Am Federelement 17 sind außerdem, wie vorstehend angedeutet, beispielsweise durch Schraub- oder Klipsverbindungen, Fliehkraftelemente 26 befestigt, die aufgrund der Biegespannung des vorgebogenen Federelementes 17 nach innen gerichtet sind.As indicated above, centrifugal force elements 26 are also attached to the spring element 17, for example by screw or clip connections, which are directed inward due to the bending stress of the pre-bent spring element 17.

Das bedeutet, die Fliehkraftelemente 26 sind, wie beispielsweise in Fig. 1 dargestellt, im Montagezustand und, so lange die Spindel 2 eine bestimmte Spindeldrehzahl nicht überschreitet, in die Aufnahmen 27 der Unterwindehülse 16 eingeschwenkt.This means that the centrifugal force elements 26 are, for example, in FIG Fig. 1 shown, in the assembled state and, as long as the spindle 2 does not exceed a certain spindle speed, pivoted into the receptacles 27 of the underwinding sleeve 16.

Die Unterwindehülse 16 weist des Weiteren in ihrem oberen Bereich einige, wenigstens zwei, Kulissenführungen 22 auf, die im Montagezustand mit entsprechenden Führungsansätzen 23 am beweglich gelagerten, zweiten Klemmelement 18 korrespondieren und eine Arretiereinrichtung bilden.The underwinding sleeve 16 also has in its upper area some, at least two, link guides 22 which, in the assembled state, correspond to corresponding guide lugs 23 on the movably mounted, second clamping element 18 and form a locking device.

Das heißt, die Kulissenführungen 22 der Unterwindehülse 16 ermöglichen in Verbindung mit den Führungsansätzen 23 des beweglich gelagerten zweiten Klemmelementes 18, dass das Klemmelement 18, wie in Fig.2 dargestellt, in einer Reinigungsstellung RS positioniert werden kann, in der die Klemmelemente 15, 18 deutlich beabstandet zueinander stehen.That is, the link guides 22 of the underwinding sleeve 16, in conjunction with the guide lugs 23 of the movably mounted second clamping element 18, enable the clamping element 18, as in FIG Fig. 2 shown, can be positioned in a cleaning position RS, in which the clamping elements 15, 18 are clearly spaced from one another.

Um eine solche Reinigungsstellung RS, in der das beweglich gelagerte, zweite Klemmelement 18 in einem relativ deutlichen Abstand b zum stationär angeordneten, ersten Klemmelement 15 positioniert ist, zu erhalten, muss, bei stehender Spindel 2, das zweite Klemmelement 18 zunächst manuell in Richtung M nach unten geschoben und anschließend etwas, beispielsweise um 90°, gedreht werden.In order to obtain such a cleaning position RS, in which the movably mounted, second clamping element 18 is positioned at a relatively clear distance b from the stationary, first clamping element 15, the second clamping element 18 must first be manually in the direction M with the spindle 2 stationary pushed down and then rotated a little, for example by 90 °.

Bei einer solchen Vorgehensweise sorgen die in der Unterwindehülse 16 angeordneten Kulissenführungen 22 in Verbindung mit den am beweglich gelagerten zweiten Klemmelement 18 angeordneten Führungsansätzen 23 dafür, dass das zweite Klemmelement 18 in einer Reinigungsstellung RS fixiert wird, in der das zweite Klemmelement 18 deutlich beabstandet zum stationären ersten Klemmelement 15 steht und entsprechend die Fadenklemmvorrichtung 14, problemlos gereinigt werden kann.In such a procedure, the link guides 22 arranged in the underwinding sleeve 16 in connection with the second movably mounted on the second Clamping element 18 arranged guide lugs 23 so that the second clamping element 18 is fixed in a cleaning position RS, in which the second clamping element 18 is clearly spaced from the stationary first clamping element 15 and accordingly the thread clamping device 14 can be cleaned without any problems.

Die Fadenklemmvorrichtung 14 bleibt in dieser Reinigungsstellung RS, bis die Reinigungsstellung, durch entsprechende manuelle Betätigung des zweiten Klemmelementes 18, wieder aufgehoben wird.The thread clamping device 14 remains in this cleaning position RS until the cleaning position is canceled again by appropriate manual actuation of the second clamping element 18.

Claims (5)

  1. Thread clamping device (14) for a spindle (2) of a spinning or twisting machine, comprising a first clamping element (15) arranged stationarily on the spindle upper part (3), a second clamping element (18) mounted so as to be axially displaceable relative to the first clamping element (15), a load-application device, which acts on the second clamping element (18) towards the first clamping element (15) as a result of spring force, and a load-relief device, which positions the second clamping element (18) at a distance from the first clamping element (15) as a result of centrifugal force, the thread clamping device (14) having an underwinding sleeve (16) arranged stationarily on the spindle upper part (3), characterised in that
    the underwinding sleeve (16) is equipped with guide devices (22), which, in conjunction with associated guide extensions (23) on the movably mounted second clamping element (18), form a mechanical locking device for the second clamping element (18), the locking device is designed such that, if necessary, the movably mounted second clamping element (18) can be positioned in a clamping position (RS) without trouble, in which cleaning position (RS) the second clamping element (18) is fixed at a distance from the stationary first clamping element (15) for clear accessibility of the region between the first clamping element (15) and the second clamping element (18).
  2. Thread clamping device (14) according to claim 1, characterised in that the locking device is designed like a bayonet coupling.
  3. Thread clamping device (14) according to any one of the preceding claims, characterised in that the guide devices (22) arranged in the underwinding sleeve (16) are in the form of slotted guides.
  4. Thread clamping device (14) according to claim 3, characterised in that the slotted guides each have at least one first guide portion running vertically and one second guide portion running at least partially horizontally.
  5. Thread clamping device (14) according to claim 1, characterised in that the underwinding sleeve (16) has at least two guide devices (22) in the form of slotted guides.
EP17175058.1A 2016-06-09 2017-06-08 Thread clamping device Active EP3257979B1 (en)

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KR (1) KR102301537B1 (en)
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CN113335996B (en) * 2021-07-01 2022-09-16 徐州广朋纺织有限公司 Stop device of spindle unwrapping wire for textile production

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DE19628826A1 (en) 1996-07-17 1998-01-22 Lieser Gmbh Beteiligungsgesell Clamp unit for yarns for spindles
ITMI980853A1 (en) * 1997-05-06 1999-10-22 Rieter Ag Maschf SPINNING DEVICE
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
DE19947854A1 (en) * 1999-10-05 2001-04-12 Zinser Textilmaschinen Gmbh Clamping mechanism for the yarn wound around the spindle of a ring spinner under the cop has a clamping sleeve moved axially against the clamping ring and shoulder by magnets to give the open/closed positions
DE102005061043A1 (en) * 2005-12-08 2007-06-14 König, Günter Thread clamping device for underwinding threads on spindles of a ring spinning or ring twisting machine
DE102006022484B4 (en) * 2006-05-13 2017-04-27 Saurer Components Gmbh clamping device
DE102008039502A1 (en) * 2008-08-23 2010-02-25 Oerlikon Textile Components Gmbh clamping device
DE102008058655B4 (en) 2008-11-22 2019-01-10 Saurer Spinning Solutions Gmbh & Co. Kg clamping device
TR200908809A2 (en) * 2008-12-15 2010-04-21 Lakshmi Machine Works Ltd. A bottom winding mechanism in the textile spinning and twisting machine
DE102011076744A1 (en) 2011-05-31 2012-12-06 Maschinenfabrik Rieter Ag Thread clamping device for a spinning or twisting spindle
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

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ES2900275T3 (en) 2022-03-16
JP6967882B2 (en) 2021-11-17
TW201804038A (en) 2018-02-01
CN107487664B (en) 2020-07-17
DE102016007040A1 (en) 2017-12-14
JP2017218716A (en) 2017-12-14
KR20170139444A (en) 2017-12-19
KR102301537B1 (en) 2021-09-14
CN107487664A (en) 2017-12-19

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