EP4101965B1 - Yarn brake - Google Patents
Yarn brake Download PDFInfo
- Publication number
- EP4101965B1 EP4101965B1 EP21178971.4A EP21178971A EP4101965B1 EP 4101965 B1 EP4101965 B1 EP 4101965B1 EP 21178971 A EP21178971 A EP 21178971A EP 4101965 B1 EP4101965 B1 EP 4101965B1
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- EP
- European Patent Office
- Prior art keywords
- carrier
- eyelet
- disc
- brake according
- yarn brake
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B27/00—Details of, or auxiliary devices incorporated in, warp knitting machines, restricted to machines of this kind
- D04B27/10—Devices for supplying, feeding, or guiding threads to needles
- D04B27/12—Tensioning devices for individual threads
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B15/00—Details of, or auxiliary devices incorporated in, weft knitting machines, restricted to machines of this kind
- D04B15/38—Devices for supplying, feeding, or guiding threads to needles
- D04B15/44—Tensioning devices for individual threads
Definitions
- the present invention relates to a thread brake with a first disc, a second disc, a disc carrier and a tensioning device which applies a force to the first disc in the direction of the second disc, wherein the first disc and the second disc are mounted on an eyelet carrier which has a thread guide eyelet through which a thread path runs.
- DE 35 24 151 A1 shows a thread brake for textile machines with a first disc, a second disc, a disc carrier and a tensioning device which applies a force to the first disc in the direction of the second disc.
- the two discs are arranged on a bolt which carries a thread holder, which in turn has a through hole through which a thread path runs.
- a similar thread brake is in the EP 3 753 887 A1 shown, with the thread path running through a through hole in the bolt.
- US 5 343 983 A shows another thread brake.
- two disks are provided which are pressed against each other by a tensioning device and which are arranged on a bolt. Outside the disks, thread guide eyes are provided through which a thread path runs.
- the disks are mounted on their outer circumference in a holder and a thread can be guided through an opening in a disk into the space between the two disks.
- the invention relates to a thread brake for use in a warp knitting machine and a warp knitting machine with such a thread brake.
- the thread brake is used, for example, when the threads have to be unwound individually from spools in a creel. Each thread is acted upon by such a thread brake.
- the thread brakes generate a certain braking force on the thread and thus put it under tension.
- disc brakes are known from the area of warp preparation, especially warping. These generate the braking force by guiding the thread between two discs.
- the known disc brakes are comparatively expensive and are therefore not used for warp knitting machines.
- the invention is based on the object of designing a thread brake cost-effectively.
- the thread is guided through the thread guide eyelet, which defines a thread path.
- This thread path now runs between the first disc and the second disc, which are mounted on the eyelet carrier.
- the eyelet carrier therefore fulfils two functions, namely supporting the first disc and the second disc and guiding the thread. This means that only a few components are required, namely the disc carrier, the two discs, the tensioning device and the eyelet carrier. These parts can be manufactured and assembled inexpensively.
- the tensioning device then generates the braking force via the eyelet carrier.
- the projection acts on the first disc in the circumferential direction around the eyelet carrier at at least two positions. This prevents the disc from tipping relative to the eyelet carrier.
- the projection preferably acts on the first disc over a large area or at more than two positions.
- the projection has a recess on its side facing the first disc.
- the recess facilitates handling, i.e. an operator can easily lift the eyelet carrier from the first disc, which is helpful, for example, for inserting a thread through the thread guide eyelet.
- the eyelet carrier is inserted into the disc carrier. This ensures that the eyelet carrier is reliably held to the disc carrier.
- the eyelet carrier is held in the disc carrier in a twist-proof manner when inserted. This results in a defined direction for the thread path that cannot be changed during operation.
- the eyelet carrier can be inserted into the disc carrier in at least two positions. This allows the direction of the thread path to be adjusted. As soon as the eyelet carrier is inserted into the disc carrier, the angular position it assumes is defined.
- the thread guide eyelet is made of a ceramic material.
- a ceramic material is sufficiently resistant not to be damaged by a thread running through it. This reliably prevents the thread from shrinking.
- the thread guide eyelet is mounted as an insert in the eyelet carrier. This means that it can be easily replaced without incurring major costs.
- the eyelet carrier is preferably designed as an injection-molded part.
- the eyelet carrier can therefore also be produced cost-effectively.
- the eyelet carrier can be made of a ceramic material.
- the thread guide eyelet is preferably connected in one piece to the eyelet carrier.
- the tensioning device has a variable tensioning force.
- the tensioning force By changing the tensioning force, the braking effect on the thread running through the thread guide eyelet can be changed.
- the tensioning device comprises a tensioning element which is arranged between the eyelet carrier and a holding element, wherein the
- the disc carrier has several positions at which the holding element can be fixed.
- the position at which the holding element is fixed determines the stretch of the tensioning element and thus the force with which the tensioning element acts on the eyelet carrier. This force, in turn, is decisive for the braking force that the two discs exert on the thread.
- the tensioning element is preferably designed as an elastomeric tension element or as a spiral spring.
- the elastomeric tension element can be made of rubber or another elastomeric material, for example.
- the spiral spring can be made of metal or plastic.
- the disk carrier has a plurality of grooves which run transversely to a clamping direction of the clamping element and in which the holding element can be fixed. The grooves then form the position at which the holding element can be fixed.
- Fig. 1 shows in an exploded view a thread brake 1 with a disc carrier 2, an eyelet carrier 3 into which a thread guide eyelet 4 is inserted, a first disc 5, a second disc 6, a clamping element 7 and a holding element 8.
- the eyelet carrier 3 with the thread guide eyelet 4 located therein is guided through the first disk 5 and the second disk 6 and inserted into a recess 9 on the disk carrier 2.
- the eyelet carrier 3 has a polygonal cross-section 10.
- the recess 9 also has a similar polygonal cross-section.
- the eyelet carrier 3 is therefore secured against twisting when it is inserted into the recess 9 of the disk carrier 2. However, it can be inserted into the disk carrier 2 in two angular positions offset by 90° to one another.
- the tensioning element 7 engages a holding position 11 on the eyelet carrier 3.
- the tensioning element 7 is connected to the holding element 8.
- the disc carrier 2 has several grooves 12 on one side in which the holding element 8 can be fixed.
- the holding element 8 is designed as a rectangular ring, so that the holding element 8 can always be arranged in two parallel grooves.
- the tensioning element 7 is made of an elastomeric material, for example a rubber. In other words, it can be designed as a rubber band. Alternatively, as in Fig. 2 can be seen, can also be designed as a spring, in particular as a spiral spring.
- the clamping force generated by the clamping element 7 depends on its elongation.
- the elongation is defined by the position at which the holding element 8 is attached to the disk carrier 2.
- the holding element 8 If the holding element 8 is positioned further away from the eyelet carrier 3, the clamping force generated by the clamping element 7 increases. If the holding element 8 is positioned closer to the eyelet carrier 3, a correspondingly lower clamping force and thus a correspondingly lower braking force is generated.
- the eyelet carrier 3 When assembled, the eyelet carrier 3 is inserted into the recess 9 of the disc carrier 2 and thus holds the two discs 5, 6 in position between itself and the disc carrier 2.
- the eyelet carrier 3 has a projection 13 running around the circumference, which acts on the first disc 5.
- the eyelet carrier 3 can thus enable a force to be applied over a large area and at the same time largely prevent the first disc 5 from tipping over relative to the second disc 6.
- the projection 13 has a recess 14, which serves as an ergonomic aid so that an operator can grasp the eyelet carrier 3, even if the projection 13 lies flat on the first disc 5.
- the thread brake 1 When the holding element 8 has been fixed in a desired position on the disc carrier 2, the thread brake 1 generates the desired tensioning force.
- the eyelet carrier 3 can be raised against the force of the tensioning element 7 so that a gap can be formed between the first disk 5 and the second disk 6 through which a thread can be introduced into the thread guide eyelet 4. Since no further thread guide eyelets 4 are required, the effort for the thread brake 1 is kept small.
- a first modification of the thread brake 1 is that the disk carrier 2 has two positions at each of which a thread 15, 16 can be subjected to a braking force. Another difference is that the eyelet carrier 3 is no longer arranged perpendicular to the longitudinal direction of the disk carrier 2, but rather approximately parallel to the longitudinal direction of the disk carrier 2. In addition, the grooves 12 are no longer arranged on an outer side of the disk carrier 2, but in a slot 17 in a wall 18 of the disk carrier 2.
- the two braking positions for threads 15, 16 correspond to each other. For this reason, only the braking position for thread 15 (in the drawing on the left side of the thread brake) is described.
- both the eyelet carrier 3 and the first disk 5 are made of a ceramic material.
- the tensioning element 7 is designed here as a spring, in particular as a spiral spring.
- the tensioning element 7 has an eyelet 19 into which the holding projection 11 of the eyelet carrier 3 can be hooked. It should be noted that the tensioning element 7 has a length that is somewhat shorter than the distance between the holding element 8 and the eyelet carrier 3 in the most retracted position on the disc carrier 2, so that the tensioning element 7 can always exert a small tension on the eyelet carrier 3.
- the thread brake requires only five components for each thread.
- the eyelet carrier 3 can only be inserted into the disc carrier 2 in one or a few angular positions. This can also be used to move the eyelet carrier 3 into an "insertion position" after it has been pulled out by slightly twisting it relative to the disc carrier 2. This in turn makes it easier to pull in a thread 15 without additional tools and speeds up the pulling in or threading process considerably.
- the eyelet carrier 3 and the disc carrier 2 can be cost-effectively manufactured as injection-molded elements.
- the disc carrier 2 can also have a fastening geometry 20 with which the thread brake 1 can be mounted in a frame.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Braking Arrangements (AREA)
Description
Die vorliegende Erfindung betrifft eine Fadenbremse mit einer ersten Scheibe, einer zweiten Scheibe, einem Scheibenträger und einer Spanneinrichtung, die die erste Scheibe mit einer Kraft in Richtung auf die zweite Scheibe beaufschlagt, wobei die erste Scheibe und die zweite Scheibe auf einem Ösenträger gelagert sind, der eine Fadenführeröse aufweist, durch die ein Fadenpfad verläuft.The present invention relates to a thread brake with a first disc, a second disc, a disc carrier and a tensioning device which applies a force to the first disc in the direction of the second disc, wherein the first disc and the second disc are mounted on an eyelet carrier which has a thread guide eyelet through which a thread path runs.
Eine ähnliche Fadenbremse ist in der
Insbesondere betrifft die Erfindung eine Fadenbremse zum Einsatz in einer Kettenwirkmaschine und eine Kettenwirkmaschine mit einer derartigen Fadenbremse. Die Fadenbremse findet beispielsweise Anwendung, wenn die Fäden einzeln von Spulen aus einem Gatter abgewickelt werden müssen. Jeder Faden wird dabei durch eine derartige Fadenbremse beaufschlagt. Die Fadenbremsen erzeugen eine gewisse Bremskraft auf den Faden und setzen ihn somit unter Spannung.In particular, the invention relates to a thread brake for use in a warp knitting machine and a warp knitting machine with such a thread brake. The thread brake is used, for example, when the threads have to be unwound individually from spools in a creel. Each thread is acted upon by such a thread brake. The thread brakes generate a certain braking force on the thread and thus put it under tension.
Aus dem Bereich der Kettvorbereitung, insbesondere des Schärens, sind so genannte Tellerbremsen bekannt. Diese erzeugen die Bremskraft dadurch, dass der Faden zwischen zwei Scheiben hindurchgeführt wird. Die bekannten Tellerbremsen sind jedoch vergleichsweise kostenintensiv und werden daher nicht für Kettenwirkmaschinen verwendet.So-called disc brakes are known from the area of warp preparation, especially warping. These generate the braking force by guiding the thread between two discs. However, the known disc brakes are comparatively expensive and are therefore not used for warp knitting machines.
Der Erfindung liegt die Aufgabe zugrunde, eine Fadenbremse kostengünstig auszugestalten.The invention is based on the object of designing a thread brake cost-effectively.
Diese Aufgabe wird bei einer Fadenbremse der eingangs genannten Art dadurch gelöst, dass die beiden Scheiben zwischen dem Scheibenträger und einem Vorsprung am Ösenträger angeordnet sind, wobei die Spanneinrichtung mit einer Zugspannung auf den Ösenträger wirkt.This object is achieved in a thread brake of the type mentioned above in that the two discs are arranged between the disc carrier and a projection on the eyelet carrier, wherein the tensioning device acts with a tensile stress on the eyelet carrier.
Der Faden wird durch die Fadenführeröse geführt, wodurch ein Fadenpfad definiert ist. Dieser Fadenpfad verläuft nun zwischen der ersten Scheibe und der zweiten Scheibe, die auf dem Ösenträger gelagert sind. Der Ösenträger erfüllt damit zwei Funktionen, nämlich einmal die Lagerung der ersten Scheibe und der zweiten Scheibe und zum anderen die Führung des Fadens. Damit werden nur wenige Bauteile benötigt, nämlich der Scheibenträger, die beiden Scheiben, die Spanneinrichtung und der Ösenträger. Diese Teile lassen sich kostengünstig herstellen und zusammensetzen. Die Spanneinrichtung erzeugt dann die Bremskraft über den Ösenträger.The thread is guided through the thread guide eyelet, which defines a thread path. This thread path now runs between the first disc and the second disc, which are mounted on the eyelet carrier. The eyelet carrier therefore fulfils two functions, namely supporting the first disc and the second disc and guiding the thread. This means that only a few components are required, namely the disc carrier, the two discs, the tensioning device and the eyelet carrier. These parts can be manufactured and assembled inexpensively. The tensioning device then generates the braking force via the eyelet carrier.
Vorzugsweise wirkt der Vorsprung in Umfangsrichtung um den Ösenträger an mindestens zwei Positionen auf die erste Scheibe. Damit wird ein Kippen der Scheibe gegenüber dem Ösenträger verhindert. Der Vorsprung wirkt vorzugsweise flächig oder an mehr als zwei Positionen auf die erste Scheibe.Preferably, the projection acts on the first disc in the circumferential direction around the eyelet carrier at at least two positions. This prevents the disc from tipping relative to the eyelet carrier. The projection preferably acts on the first disc over a large area or at more than two positions.
Vorzugsweise weist der Vorsprung auf seiner der ersten Scheibe zugewandten Seite eine Ausnehmung auf. Die Ausnehmung erleichtert die Handhabung, d.h. eine Bedienungsperson kann den Ösenträger leicht von der ersten Scheibe abheben, was beispielsweise zum Einführen eines Fadens durch die Fadenführeröse hilfreich ist.Preferably, the projection has a recess on its side facing the first disc. The recess facilitates handling, i.e. an operator can easily lift the eyelet carrier from the first disc, which is helpful, for example, for inserting a thread through the thread guide eyelet.
Vorzugsweise ist der Ösenträger in den Scheibenträger eingesteckt. Damit wird der Ösenträger zuverlässig am Scheibenträger gehalten.Preferably, the eyelet carrier is inserted into the disc carrier. This ensures that the eyelet carrier is reliably held to the disc carrier.
Vorzugsweise ist der Ösenträger im eingesteckten Zustand verdrehsicher im Scheibenträger gehalten. Damit ergibt sich eine definierte Richtung für den Fadenpfad, die im Betrieb nicht geändert werden kann.Preferably, the eyelet carrier is held in the disc carrier in a twist-proof manner when inserted. This results in a defined direction for the thread path that cannot be changed during operation.
Vorzugsweise ist der Ösenträger in mindestens zwei Positionen in den Scheibenträger einsetzbar. Damit kann die Richtung des Fadenpfades eingestellt werden. Sobald der Ösenträger in den Scheibenträger eingesetzt ist, ist die eingenommene Winkelposition definiert.Preferably, the eyelet carrier can be inserted into the disc carrier in at least two positions. This allows the direction of the thread path to be adjusted. As soon as the eyelet carrier is inserted into the disc carrier, the angular position it assumes is defined.
Vorzugsweise ist die Fadenführeröse aus einem Keramikmaterial gebildet. Ein Keramikmaterial ist ausreichend widerstandsfähig, um nicht durch einen durchlaufenden Faden beschädigt zu werden. Ein Einlaufen des Fadens kann damit zuverlässig verhindert werden.Preferably, the thread guide eyelet is made of a ceramic material. A ceramic material is sufficiently resistant not to be damaged by a thread running through it. This reliably prevents the thread from shrinking.
Vorzugsweise ist die Fadenführeröse als Einsatz im Ösenträger montiert. Sie kann damit leicht ausgewechselt werden, ohne größere Kosten zu verursachen.Preferably, the thread guide eyelet is mounted as an insert in the eyelet carrier. This means that it can be easily replaced without incurring major costs.
Vorzugsweise ist der Ösenträger als Spritzgussteil ausgebildet. Der Ösenträger kann also ebenfalls kostengünstig produziert werden.The eyelet carrier is preferably designed as an injection-molded part. The eyelet carrier can therefore also be produced cost-effectively.
Alternativ dazu kann der Ösenträger aus einem Keramikmaterial gebildet sein. In diesem Fall ist die Fadenführeröse vorzugsweise einstückig mit dem Ösenträger verbunden.Alternatively, the eyelet carrier can be made of a ceramic material. In this case, the thread guide eyelet is preferably connected in one piece to the eyelet carrier.
Vorzugsweise weist die Spanneinrichtung eine veränderbare Spannkraft auf. Man kann durch eine Veränderung der Spannkraft die Bremswirkung auf den durch die Fadenführeröse laufenden Faden verändern.Preferably, the tensioning device has a variable tensioning force. By changing the tensioning force, the braking effect on the thread running through the thread guide eyelet can be changed.
Vorzugsweise weist die Spanneinrichtung ein Spannelement auf, das zwischen dem Ösenträger und einem Halteelement angeordnet ist, wobei derPreferably, the tensioning device comprises a tensioning element which is arranged between the eyelet carrier and a holding element, wherein the
Scheibenträger mehrere Positionen aufweist, an denen das Halteelement festlegbar ist. Die Position, an der das Halteelement festgelegt wird, bestimmt die Dehnung des Spannelements und damit die Kraft, mit der das Spannelement auf den Ösenträger wirkt. Diese Kraft wiederum ist entscheidend für die Bremskraft, die die beiden Scheiben auf den Faden ausüben.The disc carrier has several positions at which the holding element can be fixed. The position at which the holding element is fixed determines the stretch of the tensioning element and thus the force with which the tensioning element acts on the eyelet carrier. This force, in turn, is decisive for the braking force that the two discs exert on the thread.
Vorzugsweise ist das Spannelement als elastomeres Zugelement oder als Spiralfeder ausgebildet. Das elastomere Zugelement kann beispielsweise aus einem Gummi oder einem anderen elastomeren Material gebildet sein. Die Spiralfeder kann aus Metall oder Kunststoff gebildet sein.The tensioning element is preferably designed as an elastomeric tension element or as a spiral spring. The elastomeric tension element can be made of rubber or another elastomeric material, for example. The spiral spring can be made of metal or plastic.
Vorzugsweise weist der Scheibenträger mehrere Nuten auf, die quer zu einer Spannrichtung des Spannelements verlaufen und in denen das Halteelement festlegbar ist. Die Nuten bilden dann die Position, an der das Halteelement festgelegt werden kann.Preferably, the disk carrier has a plurality of grooves which run transversely to a clamping direction of the clamping element and in which the holding element can be fixed. The grooves then form the position at which the holding element can be fixed.
Die Erfindung wird im Folgenden anhand von bevorzugten Ausführungsbeispielen in Verbindung mit der Zeichnung beschrieben. Hierin zeigen:
- Fig. 1
- eine Explosionsdarstellung einer ersten Ausführungsform einer Fadenbremse,
- Fig. 2
- eine Schnittdarstellung einer zweiten Ausführungsform einer Fadenbremse und
- Fig. 3
- die Fadenbremse nach
Fig. 2 in einer perspektivischen Darstellung.
- Fig. 1
- an exploded view of a first embodiment of a thread brake,
- Fig. 2
- a sectional view of a second embodiment of a thread brake and
- Fig. 3
- the thread brake after
Fig. 2 in a perspective view.
Der Ösenträger 3 mit darin befindlicher Fadenführeröse 4 wird durch die erste Scheibe 5 und die zweite Scheibe 6 geführt und in einer Ausnehmung 9 am Scheibenträger 2 eingesteckt. Der Ösenträger 3 hat einen polygonartigen Querschnitt 10. Auch die Ausnehmung 9 hat einen derartigen polygonartigen Querschnitt. Der Ösenträger 3 ist also, wenn er in die Ausnehmung 9 des Scheibenträgers 2 eingesetzt ist, gegen ein Verdrehen gesichert. Er kann allerdings in zwei um 90° zueinander versetzten Winkelpositionen in den Scheibenträger 2 eingesetzt werden.The
Das Spannelement 7 greift an einer Halteposition 11 am Ösenträger 3 an. Das Spannelement 7 ist mit dem Halteelement 8 verbunden.The
Der Scheibenträger 2 weist an einer Seite mehrere Nuten 12 auf, in denen das Halteelement 8 festgelegt werden kann. Das Halteelement 8 ist im vorliegenden Ausführungsbeispiel als rechteckiger Ring ausgebildet, so dass das Halteelement 8 immer in zwei parallelen Nuten angeordnet werden kann.The
Das Spannelement 7 ist aus einem elastomeren Material, beispielsweise einem Gummi, gebildet. Es kann mit anderen Worten als Gummiband ausgebildet sein. Alternativ dazu kann es, wie in
Die Spannkraft, die das Spannelement 7 erzeugt, richtet sich nach seiner Dehnung. Die Dehnung wiederum wird über die Position definiert, an der das Halteelement 8 am Scheibenträger 2 befestigt ist.The clamping force generated by the clamping
Wird das Halteelement 8 weiter von dem Ösenträger 3 weg positioniert, steigt die Spannkraft, die durch das Spannelement 7 erzeugt wird. Wenn das Halteelement 8 näher am Ösenträger 3 positioniert wird, dann wird eine entsprechend geringere Spannkraft und damit entsprechend geringere Bremskraft erzeugt.If the holding
Insgesamt werden also nur sieben Teile benötigt, um die Fadenbremse 1 zusammenzubauen. Im zusammengebauten Zustand ist der Ösenträger 3 in die Ausnehmung 9 des Scheibenträgers 2 eingesteckt und hält damit die beiden Scheiben 5, 6 zwischen sich und dem Scheibenträger 2 in Position.In total, only seven parts are required to assemble the
Der Ösenträger 3 weist einen in Umfangsrichtung umlaufenden Vorsprung 13 auf, der auf die ersten Scheibe 5 wirkt. Damit kann der Ösenträger 3 eine flächige Kraftbeaufschlagung ermöglichen und gleichzeitig ein Kippen der ersten Scheibe 5 gegenüber der zweiten Scheibe 6 weitgehend verhindern. Der Vorsprung 13 weist eine Ausnehmung 14 auf, die als ergonomisches Hilfsmittel dient, damit eine Bedienungsperson den Ösenträger 3 ergreifen kann, auch wenn der Vorsprung 13 flach auf der ersten Scheibe 5 aufliegt.The
Wenn dann das Halteelement 8 in einer gewünschten Position am Scheibenträger 2 festgelegt worden ist, erzeugt die Fadenbremse 1 die gewünschte Spannkraft.When the holding
Zum Einfädeln eines Fadens durch die Fadenführeröse 4 kann der Ösenträger 3 gegen die Kraft des Spannelements 7 angehoben werden, so dass ein Spalt zwischen der ersten Scheibe 5 und der zweiten Scheibe 6 gebildet werden kann, durch den ein Faden in die Fadenführeröse 4 eingeführt werden kann. Da keine weiteren Fadenführerösen 4 erforderlich sind, wird der Aufwand für die Fadenbremse 1 kleingehalten.To thread a thread through the thread guide eyelet 4, the
Die
Eine erste Abwandlung der Fadenbremse 1 besteht darin, dass der Scheibenträger 2 zwei Positionen aufweist, an denen jeweils ein Faden 15, 16 mit einer Bremskraft beaufschlagt werden kann. Ein anderer Unterschied besteht darin, dass der Ösenträger 3 nicht mehr senkrecht zur Längsrichtung des Scheibenträgers 2, sondern etwa parallel zur Längsrichtung des Scheibenträgers 2 angeordnet ist. Darüber hinaus sind die Nuten 12 nun nicht mehr an einer Außenseite des Scheibenträgers 2 angeordnet, sondern in einem Schlitz 17 in einer Wand 18 des Scheibenträgers 2.A first modification of the
Die beiden Bremspositionen für die Fäden 15, 16 entsprechen einander. Aus diesem Grunde wird nur die Bremsposition für den Faden 15 (in der Zeichnung auf der linken Seite der Fadenbremse) beschrieben.The two braking positions for
Schließlich ist der Fadenführer 3 einstückig mit der ersten Scheibe 5 ausgebildet. In diesem Fall besteht sowohl der Ösenträger 3 als auch die erste Scheibe 5 aus einem Keramikmaterial.Finally, the
Das Spannelement 7 ist hier als Feder, insbesondere als Spiralfeder, ausgebildet. Das Spannelement 7 weist eine Öse 19 auf, in die der Haltevorsprung 11 des Ösenträgers 3 eingehängt werden kann. Es sollte dabei bemerkt werden, dass das Spannelement 7 eine Länge hat, die etwas kürzer ist als die Entfernung zwischen dem Halteelement 8 und dem Ösenträger 3 in der am weitesten eingefahrenen Position am Scheibenträger 2, so dass das Spannelement 7 in jedem Fall eine kleine Spannung auf den Ösenträger 3 ausüben kann.The
Wenn der Ösenträger 3, die Fadenführeröse 4 und die erste Scheibe 5 als ein Element zusammen ausgebildet sind, benötigt die Fadenbremse für jeden Faden nur noch fünf Bauelemente.If the
Der Ösenträger 3 kann, wie oben erwähnt, nur in einer oder einigen wenigen Winkelpositionen in den Scheibenträger 2 eingesetzt werden. Dies kann zusätzlich ausgenutzt werden, den Ösenträger 3 nach dem Herausziehen durch leichtes Verdrehen gegenüber dem Scheibenträger 2 in eine "Einlegeposition" zu versetzen. Dies erleichtert wiederum das Einziehen eines Fadens 15 ohne zusätzliches Werkzeug und beschleunigt den Einzieh- oder Einfädelvorgang ganz erheblich.As mentioned above, the
Der Ösenträger 3 und der Scheibenträger 2 können kostengünstig als Spritzgusselemente ausgebildet werden.The
Der Scheibenträger 2 kann noch eine Befestigungsgeometrie 20 aufweisen, mit der die Fadenbremse 1 in einem Gestell montiert werden kann.The
Claims (14)
- Yarn brake (1) having a first disk (5), a second disk (6), a disk carrier (2) and a tensioning device which applies a force to the first disk (5) in the direction of the second disk (6), the first disk (5) and the second disk (6) being arranged on an eyelet carrier (3), which has a yarn guide eyelet (4) through which a yarn path runs, characterized in that the two discs (5, 6) are arranged between the disc carrier (2) and a projection (13) on the eyelet carrier (3).
- Yarn brake according to claim 1, characterized in that the projection (13) positions in the circumferential direction around the eyelet carrier (3) acts on the first disc (5) at at least two.
- Yarn brake according to claim 2, characterized in that the projection (13) has a recess (14) on its side facing the first disc (5).
- Yarn brake according to one of claims 1 to 3, characterized in that the eyelet carrier (3) is inserted into the disc carrier (2).
- Yarn brake according to claim 4, characterized in that the eyelet carrier (3) is held in the disc carrier (2) in a non-rotatable manner in the inserted state.
- Yarn brake according to claim 5, characterized in that the eyelet carrier (3) can be inserted into the disc carrier (2) in at least two angular positions.
- Yarn brake according to one of claims 1 to 6, characterized in that the yarn guide eyelet (4) is formed from a ceramic material.
- Yarn brake according to one of claims 1 to 7, characterized in that the yarn guide eyelet (4) is mounted as an insert in the eyelet carrier (3).
- Yarn brake according to claim 6 or 7, characterized in that the eyelet carrier (3) is formed as an injection-moulded part.
- Yarn brake according to one of claims 1 to 7, characterized in that the eyelet carrier (3) is formed from a ceramic material.
- Yarn brake according to one of claims 1 to 10, characterized in that the tensioning device has a variable tensioning force.
- Yarn brake according to claim 11, characterized in that the tensioning device has a tensioning element (7) which is arranged between the eyelet carrier (3) and a retaining element (8), the disc carrier (2) having a plurality of positions at which the retaining element (8) can be fixed.
- Yarn brake according to claim 12, characterized in that the tensioning element (7) is designed as an elastomeric tension element or as a spiral spring.
- Yarn brake according to claim 12 or 13, characterized in that the disc carrier (2) has a plurality of grooves (12) which are arrangeable transversely to a tensioning direction of the tensioning element (7) and in which the retaining element (8) can be fixed.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21178971.4A EP4101965B1 (en) | 2021-06-11 | 2021-06-11 | Yarn brake |
| CN202210256762.2A CN115467079B (en) | 2021-06-11 | 2022-03-16 | Yarn brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP21178971.4A EP4101965B1 (en) | 2021-06-11 | 2021-06-11 | Yarn brake |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP4101965A1 EP4101965A1 (en) | 2022-12-14 |
| EP4101965B1 true EP4101965B1 (en) | 2025-01-01 |
Family
ID=76392256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP21178971.4A Active EP4101965B1 (en) | 2021-06-11 | 2021-06-11 | Yarn brake |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP4101965B1 (en) |
| CN (1) | CN115467079B (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3524151A1 (en) * | 1985-07-05 | 1987-01-15 | Frei Gmbh & Co Geb | Thread brake for textile machines |
| DE4104663C1 (en) * | 1991-02-15 | 1992-08-13 | Memminger-Iro Gmbh, 7290 Freudenstadt, De | |
| DE19743573A1 (en) * | 1997-10-02 | 1999-04-15 | Memminger Iro Gmbh | Thread brake |
| ES2230351T3 (en) * | 2000-08-12 | 2005-05-01 | WILLIAM PRYM GMBH & CO. KG | OJAL FOR THE REINFORCEMENT OF THE MARGINAL AREA AROUND A HOLE ON A CARRIER AND DEVICE TO PLACE THE EYE ON A CARRIER BAND. |
| DE102006058083A1 (en) * | 2006-12-07 | 2008-06-12 | Memminger-Iro Gmbh | Lockable thread eyelet |
| TWI579425B (en) * | 2014-01-24 | 2017-04-21 | Jen Hui Chen | The improved structure of the yarn extruder |
| US11130652B2 (en) * | 2018-05-03 | 2021-09-28 | Nv Michel Van De Wiele | Yarn tensioning system and method for keeping a yarn which is taken from a yarn storage system to a yarn take-off system of a weaving machine under tension |
| JP2020204106A (en) * | 2019-06-18 | 2020-12-24 | 株式会社島精機製作所 | Thread tension adjusting device |
-
2021
- 2021-06-11 EP EP21178971.4A patent/EP4101965B1/en active Active
-
2022
- 2022-03-16 CN CN202210256762.2A patent/CN115467079B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4101965A1 (en) | 2022-12-14 |
| CN115467079A (en) | 2022-12-13 |
| CN115467079B (en) | 2024-10-15 |
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