EP1440929A1 - Device for control the yarn tension of a yarn being drawn of a bobbin located on a bobbin holder for a leno selvage device - Google Patents

Device for control the yarn tension of a yarn being drawn of a bobbin located on a bobbin holder for a leno selvage device Download PDF

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Publication number
EP1440929A1
EP1440929A1 EP03028793A EP03028793A EP1440929A1 EP 1440929 A1 EP1440929 A1 EP 1440929A1 EP 03028793 A EP03028793 A EP 03028793A EP 03028793 A EP03028793 A EP 03028793A EP 1440929 A1 EP1440929 A1 EP 1440929A1
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EP
European Patent Office
Prior art keywords
brake
thread
brake drum
bobbin
guide arm
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Granted
Application number
EP03028793A
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German (de)
French (fr)
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EP1440929B1 (en
Inventor
Christoph Schwemmlein
Kurt Hockemeyer
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Gebrueder Kloecker GmbH
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Kloecker Entwicklungs GmbH
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Publication of EP1440929A1 publication Critical patent/EP1440929A1/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
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
    • B65H59/04—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package by devices acting on package or support
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00—Leno or similar shedding mechanisms

Definitions

  • the invention relates to a device for regulating the thread tension a thread drawn from a bobbin of a bobbin holder for a leno edge device, the device being a brake drum comprises, which receives the bobbin holder, the brake drum one Has braking device and wherein the device has a guide arm for shows the thread of the bobbin.
  • a leno selvedge arises exemplarily as a combination of heddle strands and half strands. Two serve Lifting strands in connection with a half strand of the manufacture of a so-called Leno selvedge. Such lifting strands are directly or indirectly on the Heald frames attached to a weaving machine.
  • a device in which a similar leno edge is produced is distinguished by two rotating arms, which take up the leno threads at the ends, and whereby the weft thread is tied by the leno threads.
  • This The device is also known as a "propeller twister" (EP 0 839 219) known.
  • EP 1 036 228 already describes a device for regulating the Thread tension known; this is immediately in front of the leno selvedge a thread retainer is provided which already has the thread tension regulated immediately in front of the leno selvedge.
  • This thread retainer is designed to be resilient for this purpose.
  • the invention now also relates to a device for Regulation of thread tension in the sense of equalizing the Thread tension directly on the thread spool.
  • Spool holders are known which take up the spool rotatably.
  • Brakes are also known such bobbin holders, which ensure a smooth flow of the thread from the spool.
  • the invention is therefore based on the object of a device at the outset Provide mentioned type, which regulates the thread tension causes, namely in the sense of an equalization of the tension of the Spool of thread withdrawn.
  • the braking device a swiveling brake lever with one resting on the brake drum Brake shoe comprises, the brake lever a guide arm with an eyelet for the thread drawn from the bobbin.
  • This guide arm is especially designed to be resilient.
  • This tension from the resiliently elastic guide arm is added, then, at the same time, the brake shoe of the Brake lever released from the brake drum or, in extreme cases, even is lifted off.
  • the guide arm which, as already stated, is designed to be resilient is bent in the direction of the acting force, while at the same time due to this force the brake lever, which is one unit with the guide arm forms, its force on the brake drum is reduced or lifted off, and hereby reduces the braking effect on the brake drum or in extreme cases is even canceled.
  • the spring action of the guide arm must be included correlate the force exerted on the brake shoe.
  • an adjustable spring can be provided, which is part of the Braking device acts on the brake shoe. That is, it is in any case Ensure that the guide arm is at peak loads on the Brake shoe act, is deflected before the brake shoe from the Brake drum lifts off. It is therefore possible to apply the braking force to the specific needs of the thread drawn from the bobbin adjust. It has been shown that the inventive Construction a regulation of the thread tension in the sense of a Uniformization of the thread tension can be achieved.
  • the ratio of the distance between the Eyelet of the guide arm and the center line of the braking device on the one hand and the fulcrum of the brake lever to the center line of the Braking device on the other hand has a certain ratio and is preferably between 9: 1 and 12: 1, preferably 11: 1.
  • the Length of the guide arm is in turn dependent on the elasticity of the Guide arm.
  • the diameter of the Brake drum in relation to the diameter of the coil; is advantageous here a ratio of the diameter of the brake drum to the diameter of the full coil of about 3: 1 is provided.
  • An even tension of the Fadens is also effected when the brake drum on her
  • the surface on which the brake shoe rests has an even surface having.
  • the pivot point of the brake lever on a Tangent lies, the position of the tangent through the intersection of the Center line of the brake drum and the center line of the brake shoes is determined.
  • the center line halves the brake shoe in equal parts on both sides of the center line of the brake drum. That means that on at the apex of the brake drum, the brake shoe is divided into equal parts extends to both sides of the midpoint line.
  • the configuration is in particular that for the braking effect the direction in which the brake drum rotates is completely the same. There is none The brake shoe runs up or down on the brake drum. The The braking effect always remains the same.
  • the brake drum designated 1 is rotatable by a bracket 2 added, the braking device 4 being held by a bracket 3.
  • the brake drum 1 carries the bobbin 5, that of the bobbin 5 drawn thread has the reference number 6.
  • the total with 4 designated braking device comprises the brake lever 10, which is on the axis 11 is pivotally mounted. It is now essential that this axis 11 is centered on tangent 12.
  • the tangent 12 affects the Surface of the brake drum 1 at the intersection of the center line 13 of the Brake drum 1. This means that on both sides of the center line 13 the same brake surface of the brake shoe 14 is available, which on the lever 10 is arranged.
  • the lever 10 itself is loaded by the spring 16 which by means of a nut 17 arranged on a thread in its force is adjustable.
  • the brake lever 10 also has the guide arm 20, which at the end shows an eyelet 21 for the thread 6.
  • the guide arm pivots 20 in Direction of arrow 30. If the tension on the guide arm 20 increases, then the Lever 10 pivoted in the direction of arrow 31, then the brake shoe 14 relieves the surface of the brake drum, or from the surface of the Brake drum lifts in extreme cases, namely when the thread tension is too great becomes. If the thread tension slackens, then the brake shoe will stop 14 back to the surface of the brake drum 1, with the tension subsides in the guide arm 20, and this finally in its starting position passes back.
  • the thread tension is regulated in two stages, namely at one through the guide arm 20, and the other as a second stage Loosening or lifting or swiveling the brake lever 10.
  • the setting the braking torque or the moment when the brake shoe or Brake lever 10 finally lifts off the brake drum or on the Brake drum is reduced by the force acting on the braking force depending among others from the force of the spring 16, from the surface of the Brake drum and the size of the brake drum or the Elasticity of the guide arm 20.
  • Essential for a uniform Thread draw is also the ratio of H2 to H1, which is preferably 11: 1 should be.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Looms (AREA)
  • Braking Arrangements (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Yarn (6) for a twist selvedge is supplied from a bobbin (5) that can rotate on a carrier against the restraint of a brake drum (1) with a hinged, adjustably spring-loaded brake shoe (14). The action of the brake is controlled by a flexible lever arm (20) that has an eyelet (21) at its end through which the yarn (6) is drawn off. The fulcrum (11) of the brake shoe housing is along a tangent (12) to the brake drum (1) drawn at the center line (13) of the brake shoe (14). The ratio of the lever action between lever arm (H2) and brake shoe (H1) is between 9 and 12 to 1. The diameter of the brake drum (1) is about three times that of a full bobbin (5).

Description

Die Erfindung betrifft eine Vorrichtung zur Regulierung der Fadenspannung eines von einer Garnspule einer Garnspulenhalterung abgezogenen Fadens für eine Dreherkanteneinrichtung, wobei die Vorrichtung eine Bremstrommel umfasst, die die Garnspulenhalterung aufnimmt, wobei die Bremstrommel eine Bremseinrichtung aufweist und wobei die Vorrichtung einen Führungsarm für den Faden der Garnspule zeigt. Eine Dreherkanteneinrichtung stellt sich beispielhaft als Hebelitzen-Halblitzen-Kombination dar. Hierbei dienen zwei Hebelitzen in Verbindung mit einer Halblitze der Herstellung einer sogenannten Dreherkante. Derartige Hebelitzen sind unmittelbar oder mittelbar an den Webschäften einer Webmaschine befestigt. Hierbei wird zwischen Halblitze und Hebelitze der Dreherfaden geführt, wobei der Steherfaden durch die Öse der Halblitze geführt ist. Durch wechselseitiges Wandern des Dreherfadens von der einen Seite der Halblitze auf die andere Seite der Halblitze wird in Kombination mit dem Steherfaden der Schussfaden durch die hierbei entstehende Dreherkante abgebunden. Durch die Dreherkante wird verhindert, dass das Gewebe in diesem Bereich aufriffeltThe invention relates to a device for regulating the thread tension a thread drawn from a bobbin of a bobbin holder for a leno edge device, the device being a brake drum comprises, which receives the bobbin holder, the brake drum one Has braking device and wherein the device has a guide arm for shows the thread of the bobbin. A leno selvedge arises exemplarily as a combination of heddle strands and half strands. Two serve Lifting strands in connection with a half strand of the manufacture of a so-called Leno selvedge. Such lifting strands are directly or indirectly on the Heald frames attached to a weaving machine. Here is between half strand and Lever of the leno thread, with the upright thread passing through the eyelet Half strand is guided. By alternately walking the leno thread from the one side of the half strand on the other side of the half strand is combined with the upright thread the weft thread through the resulting one Turned edge tied. The leno edge prevents that Tissue streaks in this area

Eine Vorrichtung, bei der eine ähnliche Dreherkante erzeugt wird, zeichnet sich durch zwei rotierende Arme aus, die endseitig die Dreherfäden aufnehmen, und wobei durch die Dreherfäden der Schussfaden abgebunden wird. Diese Vorrichtung ist auch unter der Bezeichnung "Propellerdreher" (EP 0 839 219) bekannt.A device in which a similar leno edge is produced is distinguished by two rotating arms, which take up the leno threads at the ends, and whereby the weft thread is tied by the leno threads. This The device is also known as a "propeller twister" (EP 0 839 219) known.

Wesentlich ist nun, dass die Fäden, die der Dreherkantenvorrichtung zugeführt werden, und die von einer rotierenden Garnspule abgezogen werden, vom Grundsatz her immer unter einer gleichbleibenden kontinuierlichen Spannung stehen. Insbesondere ist zu vermeiden, dass die Fäden ruckhaft gespannt werden, wobei dann insbesondere bei empfindlichen Fäden, beispielsweise Glasfaserfäden, die Gefahr des Reißens besteht. Insbesondere besteht die Gefahr der ruckhaften Beanspruchung mit der Gefahr des Reißens eines solchen Fadens dann, wenn der Faden aufgrund welcher Umstände auch immer gespannt wird, die Spannung sich abrupt löst, und die Spule vorläuft und hierdurch gewissermaßen eine Fadenreserve gebildet wird, die dann nach Abarbeitung wiederum ein ruckhaftes Anziehen des Fadens bewirkt.It is now essential that the threads fed to the leno selvedge device and which are withdrawn from a rotating spool of thread from Basically always under a constant continuous tension stand. In particular, it should be avoided that the threads are jerky are then, in particular with sensitive threads, for example Glass fiber threads, there is a risk of tearing. In particular, there is Risk of jerky stress with the risk of tearing one such thread when the thread due to whatever circumstances is always tensioned, the tension is released abruptly, and the coil advances and this creates a thread reserve to a certain extent, which then follows Processing in turn causes the thread to tighten suddenly.

Insofern ist bereits aus der EP 1 036 228 eine Vorrichtung zur Regulierung der Fadenspannung bekannt; hierbei ist unmittelbar vor der Dreherkantenvorrichtung ein Fadenniederhalter vorgesehen, der bereits die Fadenspannung unmittelbar vor der Dreherkanteneinrichtung reguliert. Dieser Fadenniederhalter ist zu diesem Zwecke elastisch nachgiebig ausgebildet. Durch die Anordnung dieser Vorrichtung zur Regulierung der Fadenspannung unmittelbar vor der Dreherkantenvorrichtung wird erreicht, dass die Fadenspannung aufgrund der Federwirkung der Halterung bei Fachöffnung ausgeglichen werden kann. In this respect, EP 1 036 228 already describes a device for regulating the Thread tension known; this is immediately in front of the leno selvedge a thread retainer is provided which already has the thread tension regulated immediately in front of the leno selvedge. This thread retainer is designed to be resilient for this purpose. By the arrangement this device for regulating the thread tension immediately before Dreherkanten device is achieved that the thread tension due to Spring effect of the bracket can be compensated for when the compartment is opened.

Gegenstand der Erfindung ist nunmehr ebenfalls eine Vorrichtung zur Regulierung der Fadenspannung im Sinne der Vergleichmäßigung der Fadenspannung unmittelbar an der Garnspule. Bekannt sind Garnspulenhalter, die die Garnspule drehbar aufnehmen. Bekannt sind ebenfalls Bremsen an derartigen Garnspulenhaltern, die für einen gleichmäßigen Ablauf des Fadens von der Garnspule sorgen sollen. Es hat sich allerdings gezeigt, dass mit den bekannten Vorrichtungen der gleichmäßige Ablauf des Fadens von der Garnspule nicht immer zu gewährleisten ist.The invention now also relates to a device for Regulation of thread tension in the sense of equalizing the Thread tension directly on the thread spool. Spool holders are known which take up the spool rotatably. Brakes are also known such bobbin holders, which ensure a smooth flow of the thread from the spool. However, it has been shown that with the known devices the smooth flow of the thread from the Thread spool is not always guaranteed.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art bereitzustellen, die eine Regulierung der Fadenspannung bewirkt, und zwar im Sinne einer Vergleichmäßigung der Spannung des von der Garnspule abgezogenen Fadens.The invention is therefore based on the object of a device at the outset Provide mentioned type, which regulates the thread tension causes, namely in the sense of an equalization of the tension of the Spool of thread withdrawn.

Die Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Bremseinrichtung einen schwenkbaren Bremshebel mit einer an der Bremstrommel anliegenden Bremsbacke umfasst, wobei der Bremshebel einen Führungsarm mit einer Öse für den von der Spule abgezogenen Faden aufweist. Dieser Führungsarm ist insbesondere elastisch nachgiebig ausgebildet. In der Zusammenwirkung der Bremse des Bremshebels mit dem Führungsarm, der den Faden aufnimmt, wird insbesondere eine Vergleichmäßigung der Spannung des von der Garnspule abgezogenen Fadens erreicht. Dies insofern, als bei Auftreten von Spannung diese Spannung von dem federnd elastisch ausgebildeten Führungsarm aufgenommen wird, wobei dann, auch gleichzeitig die Bremsbacke des Bremshebels von der Bremstrommel gelöst bzw. im Extremfall sogar abgehoben wird. Das bedeutet, dass bei unter Spannung stehenden Fäden sich der Führungsarm, der, wie bereits ausgeführt, elastisch nachgiebig ausgebildet ist, in Richtung der einwirkenden Kraft verbiegt, wobei gleichzeitig dann aufgrund dieser Kraft der Bremshebel, der mit dem Führungsarm eine Einheit bildet, seine Kraft auf die Bremstrommel vermindert bzw. abgehoben wird, und hiermit die Bremswirkung auf die Bremstrommel vermindert bzw. im Extremfall sogar aufgehoben wird. Die Federwirkung des Führungsarmes muss hierbei mit der Kraft korrelieren, die auf die Bremsbacke ausgeübt wird. Hierbei kann insbesondere eine einstellbare Feder vorgesehen sein, die als Bestandteil der Bremseinrichtung auf die Bremsbacke wirkt. Das heißt, es ist in jedem Fall sicherzustellen, dass der Führungsarm bei Spannungsspitzen, die auf die Bremsbacke wirken, ausgelenkt wird, bevor die Bremsbacke von der Bremstrommel abhebt. Es besteht somit die Möglichkeit, die Bremskraft auf die spezifischen Bedürfnisse des von der Garnspule abgezogenen Fadens einzustellen. Es hat sich gezeigt, dass durch die erfindungsgemäße Konstruktion eine Regulierung der Fadenspannung im Sinne einer Vergleichmäßigung der Fadenspannung erzielt werden kann.The object is achieved in that the braking device a swiveling brake lever with one resting on the brake drum Brake shoe comprises, the brake lever a guide arm with an eyelet for the thread drawn from the bobbin. This guide arm is especially designed to be resilient. In the interaction of the Brake the brake lever with the guide arm that picks up the thread in particular an equalization of the tension of the yarn package pulled thread reached. This in that when tension occurs this tension from the resiliently elastic guide arm is added, then, at the same time, the brake shoe of the Brake lever released from the brake drum or, in extreme cases, even is lifted off. This means that when threads are under tension the guide arm, which, as already stated, is designed to be resilient is bent in the direction of the acting force, while at the same time due to this force the brake lever, which is one unit with the guide arm forms, its force on the brake drum is reduced or lifted off, and hereby reduces the braking effect on the brake drum or in extreme cases is even canceled. The spring action of the guide arm must be included correlate the force exerted on the brake shoe. This can in particular, an adjustable spring can be provided, which is part of the Braking device acts on the brake shoe. That is, it is in any case Ensure that the guide arm is at peak loads on the Brake shoe act, is deflected before the brake shoe from the Brake drum lifts off. It is therefore possible to apply the braking force to the specific needs of the thread drawn from the bobbin adjust. It has been shown that the inventive Construction a regulation of the thread tension in the sense of a Uniformization of the thread tension can be achieved.

Insbesondere ist wesentlich, dass das Verhältnis des Abstandes zwischen der Öse des Führungsarmes und der Mittelpunktlinie der Bremseinrichtung einerseits und des Drehpunktes des Bremshebels zur Mittelpunktlinie der Bremseinrichtung andererseits (H2 zu H1) ein bestimmtes Verhältnis aufweist und vorzugsweise zwischen 9:1 und 12:1 liegt, bevorzugt 11:1 beträgt. Die Länge des Führungsarmes ist wiederum abhängig von der Elastizität des Führungsarmes. Einfluss hat ebenfalls auch der Durchmesser der Bremstrommel im Verhältnis zum Durchmesser der Spule; vorteilhaft ist hierbei ein Verhältnis vom Durchmesser der Bremstrommel zum Durchmesser der vollen Spule von etwa 3:1 vorgesehen. Eine gleichmäßige Spannung des Fadens wird ebenfalls dann bewirkt, wenn die Bremstrommel auf ihrem Umfang, auf dem die Bremsbacke anliegt, eine gleichmäßige Oberfläche aufweist.In particular, it is essential that the ratio of the distance between the Eyelet of the guide arm and the center line of the braking device on the one hand and the fulcrum of the brake lever to the center line of the Braking device on the other hand (H2 to H1) has a certain ratio and is preferably between 9: 1 and 12: 1, preferably 11: 1. The Length of the guide arm is in turn dependent on the elasticity of the Guide arm. The diameter of the Brake drum in relation to the diameter of the coil; is advantageous here a ratio of the diameter of the brake drum to the diameter of the full coil of about 3: 1 is provided. An even tension of the Fadens is also effected when the brake drum on her The surface on which the brake shoe rests has an even surface having.

Insbesondere vorteilhaft ist, wenn der Drehpunkt des Bremshebels auf einer Tangente liegt, wobei die Lage der Tangente durch den Schnittpunkt der Mittelpunktlinie der Bremstrommel und der Mittellinie der Bremsbacken bestimmt ist. Hierbei halbiert die Mittellinie die Bremsbacke zu gleichen Teilen auf beiden Seiten der Mittelpunktlinie der Bremstrommel. Das heißt, dass auf dem Scheitelpunkt der Bremstrommel sich die Bremsbacke zu gleichen Teilen zu beiden Seiten der Mittelpunktslinie erstreckt. Vorteilhaft bei dieser Ausgestaltung ist hierbei insbesondere auch, dass dann für die Bremswirkung völlig gleich ist, zu welcher Richtung die Bremstrommel dreht. Es findet kein Auf- bzw. Ablaufen der Bremsbacke auf der Bremstrommel statt. Die Bremswirkung bleibt immer gleich.It is particularly advantageous if the pivot point of the brake lever on a Tangent lies, the position of the tangent through the intersection of the Center line of the brake drum and the center line of the brake shoes is determined. The center line halves the brake shoe in equal parts on both sides of the center line of the brake drum. That means that on at the apex of the brake drum, the brake shoe is divided into equal parts extends to both sides of the midpoint line. Advantageous with this In this case, the configuration is in particular that for the braking effect the direction in which the brake drum rotates is completely the same. There is none The brake shoe runs up or down on the brake drum. The The braking effect always remains the same.

Weitere vorteilhafte Merkmale sind den Unteransprüchen zu entnehmen.Further advantageous features can be found in the subclaims.

Anhand der Zeichnungen wird die Erfindung nachstehend beispielhaft näher erläutert:

Figur 1
zeigt die Bremseinrichtung in einer Seitenansicht;
Figur 2
zeigt eine Ansicht von oben.
The invention is explained in more detail below by way of example with reference to the drawings:
Figure 1
shows the braking device in a side view;
Figure 2
shows a view from above.

Die mit 1 bezeichnete Bremstrommel ist durch eine Halterung 2 drehbar aufgenommen, wobei über einen Bügel 3 die Bremseinrichtung 4 gehalten ist. Die Bremstrommel 1 trägt die Garnspule 5, der von der Garnspule 5 abgezogene Faden besitzt das Bezugszeichen 6. Die insgesamt mit 4 bezeichnete Bremseinrichtung umfasst den Bremshebel 10, der auf der Achse 11 verschwenkbar gelagert ist. Wesentlich ist nunmehr, dass diese Achse 11 mit ihrem Mittelpunkt auf der Tangente 12 liegt. Die Tangente 12 tangiert die Oberfläche der Bremstrommel 1 im Schnittpunkt der Mittelpunktslinie 13 der Bremstrommel 1. Das heißt, dass zu beiden Seiten der Mittelpunktslinie 13 die gleiche Bremsfläche der Bremsbacke 14 zur Verfügung steht, die an dem Hebel 10 angeordnet ist. Der Hebel 10 selbst wird durch die Feder 16 belastet, die mittels einer auf einem Gewinde angeordneten Mutter 17 in ihrer Kraft einstellbar ist. Der Bremshebel 10 besitzt darüber hinaus den Führungsarm 20, der endseitig eine Öse 21 für den Faden 6 zeigt.The brake drum designated 1 is rotatable by a bracket 2 added, the braking device 4 being held by a bracket 3. The brake drum 1 carries the bobbin 5, that of the bobbin 5 drawn thread has the reference number 6. The total with 4 designated braking device comprises the brake lever 10, which is on the axis 11 is pivotally mounted. It is now essential that this axis 11 is centered on tangent 12. The tangent 12 affects the Surface of the brake drum 1 at the intersection of the center line 13 of the Brake drum 1. This means that on both sides of the center line 13 the same brake surface of the brake shoe 14 is available, which on the lever 10 is arranged. The lever 10 itself is loaded by the spring 16 which by means of a nut 17 arranged on a thread in its force is adjustable. The brake lever 10 also has the guide arm 20, which at the end shows an eyelet 21 for the thread 6.

Die Funktionsweise der Vorrichtung stellt sich nun wie folgt dar:The functioning of the device is now as follows:

Gerät der Faden 6 unter Zug, dann verschwenkt der Führungsarm 20 in Richtung des Pfeils 30. Steigt die Spannung am Führungsarm 20, dann wird der Hebel 10 in Richtung des Pfeils 31 verschwenkt, wobei dann die Bremsbacke 14 die Oberfläche der Bremstrommel entlastet, bzw. von der Oberfläche der Bremstrommel im Extremfall abhebt, wenn nämlich die Fadenspannung zu groß wird. Lässt die Fadenspannung nach, dann legt sich danach die Bremsbacke 14 wieder an die Oberfläche der Bremstrommel 1 an, wobei auch die Spannung im Führungsarm 20 nachlässt, und dieser schlussendlich in seine Ausgangsstellung zurückgelangt.If the thread 6 is under tension, the guide arm pivots 20 in Direction of arrow 30. If the tension on the guide arm 20 increases, then the Lever 10 pivoted in the direction of arrow 31, then the brake shoe 14 relieves the surface of the brake drum, or from the surface of the Brake drum lifts in extreme cases, namely when the thread tension is too great becomes. If the thread tension slackens, then the brake shoe will stop 14 back to the surface of the brake drum 1, with the tension subsides in the guide arm 20, and this finally in its starting position passes back.

Wesentlich ist, dass die Fadenspannung zweistufig reguliert wird, und zwar zum einen durch den Führungsarm 20, und zum anderen als zweite Stufe durch Lösen bzw. Abheben oder Verschwenken des Bremshebels 10. Die Einstellung des Bremsmomentes bzw. des Momentes, wann die Bremsbacke bzw. Bremshebel 10 schlussendlich von der Bremstrommel abhebt bzw. die auf die Bremstrommel durch die Bremskraft einwirkende Kraft vermindert wird, ist abhängig u.a. von der Kraft der Feder 16, von der Oberfläche der Bremstrommel und von der Größe der Bremstrommel bzw. auch von der Elastizität des Führungsarmes 20. Wesentlich für einen gleichmäßigen Fadenabzug ist ebenfalls das Verhältnis von H2 zu H1, das bevorzugt 11:1 betragen soll. Insbesondere durch die Lagerung des Bremshebels 10 auf der zuvor beschriebenen Tangente 12 wird erreicht, dass unabhängig von der Drehrichtung der Trommel die Bremswirkung immer gleich ist, da ein Auf- bzw. Ablaufen der Bremsbacke auf der Trommel nicht zu befürchten ist.It is essential that the thread tension is regulated in two stages, namely at one through the guide arm 20, and the other as a second stage Loosening or lifting or swiveling the brake lever 10. The setting the braking torque or the moment when the brake shoe or Brake lever 10 finally lifts off the brake drum or on the Brake drum is reduced by the force acting on the braking force depending among others from the force of the spring 16, from the surface of the Brake drum and the size of the brake drum or the Elasticity of the guide arm 20. Essential for a uniform Thread draw is also the ratio of H2 to H1, which is preferably 11: 1 should be. In particular, by the storage of the brake lever 10 on the Tangent 12 described above is achieved that regardless of the Direction of rotation of the drum, the braking effect is always the same, as an opening or There is no fear of the brake shoe running on the drum.

Claims (8)

Vorrichtung zur Regulierung der Fadenspannung eines von einer Garnspule einer Garnspulenhalterung abgezogenen Fadens für eine Dreherkanteneinrichtung, wobei die Vorrichtung eine Bremstrommel umfasst, die eine Garnspulenhalterung aufnimmt, wobei die Bremstrommel eine Bremseinrichtung aufweist und wobei die Vorrichtung einen Führungsarm für den Faden der Garnspule zeigt,
dadurch gekennzeichnet, dass die Bremseinrichtung (4) einen schwenkbaren Bremshebel (10) mit einer an der Bremstrommel (1) anliegenden Bremsbacke (14) umfasst, wobei der Bremshebel (10) einen Führungsarm (20) mit einer Öse (21) für den von der Spule (5) abgezogenen Faden (6) aufweist.Device for regulating the thread tension of a thread drawn from a thread spool of a thread spool holder for a leno selvedge device, the device comprising a brake drum which receives a thread spool holder, the brake drum having a brake device and the device showing a guide arm for the thread of the thread spool,
characterized in that the braking device (4) comprises a pivotable brake lever (10) with a brake shoe (14) resting on the brake drum (1), the brake lever (10) having a guide arm (20) with an eyelet (21) for the the bobbin (5) has drawn thread (6). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass die Bremsbacke (14) unter der Einwirkung einer Kraft steht, insbesondere federbelastet ist.Device according to claim 1,
characterized in that the brake shoe (14) is under the action of a force, in particular is spring-loaded. Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet, dass, die Kraft, insbesondere die Federkraft der Bremseinrichtung auf die Bremsbacke (14) einstellbar ist.Device according to claim 2,
characterized in that , the force, in particular the spring force of the braking device on the brake shoe (14) is adjustable. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass der Drehpunkt des Bremshebels (10) auf einer Tangente (12) liegt, wobei die Lage der Tangente (12) durch den Schnittpunkt der Mittelpunktslinie (13) der Bremstrommel (1) mit der Mittellinie der Bremsbacke (14) bestimmt ist. Device according to claim 1,
characterized in that the fulcrum of the brake lever (10) lies on a tangent (12), the position of the tangent (12) being determined by the intersection of the center line (13) of the brake drum (1) with the center line of the brake shoe (14) , Vorrichtung nach einem oder mehrerer der Ansprüche 1 - 4,
dadurch gekennzeichnet, dass das Verhältnis des Abstandes zwischen der Öse (21) des Führungsarmes (20) und der Mittelpunktslinie (13) der Bremseinrichtung (4) einerseits und des Drehpunkts des Bremshebels (10) zur Mittelpunktslinie (13) der Bremseinrichtung andererseits (H2 zu H1), zwischen 9:1 und 12:1 beträgt.Device according to one or more of claims 1-4,
characterized in that the ratio of the distance between the eyelet (21) of the guide arm (20) and the center line (13) of the braking device (4) on the one hand and the fulcrum of the brake lever (10) to the center line (13) of the braking device on the other hand (H2) H1), between 9: 1 and 12: 1. Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, dass der Führungsarm (20) elastisch nachgiebig ausgebildet ist.Device according to claim 4,
characterized in that the guide arm (20) is elastically resilient. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass die Bremstrommel (1) auf ihrem Umfang auf dem die Bremsbacke (14) anliegt, eine gleichmäßige Oberfläche aufweist.Device according to claim 1,
characterized in that the brake drum (1) has a uniform surface on its circumference on which the brake shoe (14) rests. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass der Durchmesser der Bremstrommel (1) etwa dreimal so groß ist, wie der Durchmesser einer vollen Garnspule (5).Device according to claim 1,
characterized in that the diameter of the brake drum (1) is approximately three times as large as the diameter of a full package (5).
EP03028793A 2003-01-23 2003-12-13 Device for control the yarn tension of a yarn being drawn of a bobbin located on a bobbin holder for a leno selvage device Expired - Lifetime EP1440929B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10302730A DE10302730A1 (en) 2003-01-23 2003-01-23 Device for regulating the thread tension of a thread drawn from a thread spool of a thread spool holder for a leno selvedge device
DE10302730 2003-01-23

Publications (2)

Publication Number Publication Date
EP1440929A1 true EP1440929A1 (en) 2004-07-28
EP1440929B1 EP1440929B1 (en) 2006-08-30

Family

ID=32520087

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EP03028793A Expired - Lifetime EP1440929B1 (en) 2003-01-23 2003-12-13 Device for control the yarn tension of a yarn being drawn of a bobbin located on a bobbin holder for a leno selvage device

Country Status (7)

Country Link
US (1) US7040354B2 (en)
EP (1) EP1440929B1 (en)
JP (1) JP4157046B2 (en)
CN (1) CN100339285C (en)
AT (1) ATE338003T1 (en)
DE (2) DE10302730A1 (en)
RU (1) RU2280005C2 (en)

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CN100467688C (en) * 2005-04-12 2009-03-11 洪桂焕 Automatic stop device for radial unwinding bobbin of warping machine

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ATE446399T1 (en) * 2004-12-31 2009-11-15 Dornier Gmbh Lindauer LONE WEAVE AND METHOD AND WEAVING MACHINE FOR THE PRODUCTION THEREOF
CN102505318A (en) * 2011-11-06 2012-06-20 张洪周 Automatic adjusting device for passive yarn feeding resistance of reels
DE102012009420A1 (en) * 2012-05-11 2013-11-14 Gebrüder Klöcker GmbH Device for producing a fabric
EP3162934B1 (en) * 2015-10-28 2018-03-28 Gebrüder Klöcker GmbH Device for forming a leno selvedge, in particular for a loom, and projectile weaving loom equipped with said device
JP6344411B2 (en) * 2016-02-25 2018-06-20 株式会社豊田自動織機 Warp opening device for loom
CN105951229A (en) * 2016-07-18 2016-09-21 吴江福爱梁纺织有限公司 Broken yarn type laminated yarn tension control float
DE102020100857A1 (en) 2020-01-15 2021-07-15 Gebrüder Klöcker GmbH Textile fabric with warp and weft threads

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Also Published As

Publication number Publication date
RU2280005C2 (en) 2006-07-20
US7040354B2 (en) 2006-05-09
JP4157046B2 (en) 2008-09-24
EP1440929B1 (en) 2006-08-30
RU2004101386A (en) 2005-07-10
DE10302730A1 (en) 2004-08-12
CN1517291A (en) 2004-08-04
JP2004225236A (en) 2004-08-12
US20040154680A1 (en) 2004-08-12
DE50304842D1 (en) 2006-10-12
CN100339285C (en) 2007-09-26
ATE338003T1 (en) 2006-09-15

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