EP1595985B1 - Yarn detection system - Google Patents

Yarn detection system Download PDF

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Publication number
EP1595985B1
EP1595985B1 EP20040009047 EP04009047A EP1595985B1 EP 1595985 B1 EP1595985 B1 EP 1595985B1 EP 20040009047 EP20040009047 EP 20040009047 EP 04009047 A EP04009047 A EP 04009047A EP 1595985 B1 EP1595985 B1 EP 1595985B1
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EP
European Patent Office
Prior art keywords
thread
yarn
detection system
clamping device
clamping
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20040009047
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German (de)
French (fr)
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EP1595985A1 (en
Inventor
Peter Schmuck
Martin Fuhr
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Karl Mayer Textilmaschinenfabrik GmbH
Original Assignee
Karl Mayer Textilmaschinenfabrik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Karl Mayer Textilmaschinenfabrik GmbH filed Critical Karl Mayer Textilmaschinenfabrik GmbH
Priority to DE200450000834 priority Critical patent/DE502004000834D1/en
Priority to ES04009047T priority patent/ES2262058T3/en
Priority to EP20040009047 priority patent/EP1595985B1/en
Priority to CNB2005100657940A priority patent/CN100526527C/en
Publication of EP1595985A1 publication Critical patent/EP1595985A1/en
Application granted granted Critical
Publication of EP1595985B1 publication Critical patent/EP1595985B1/en
Anticipated expiration legal-status Critical
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    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02HWARPING, BEAMING OR LEASING
    • D02H1/00Creels, i.e. apparatus for supplying a multiplicity of individual threads
    • DTEXTILES; PAPER
    • D02YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02HWARPING, BEAMING OR LEASING
    • D02H13/00Details of machines of the preceding groups
    • D02H13/22Tensioning devices

Definitions

  • the invention relates to a thread monitor arrangement of a thread clamping device and a support profile on which the thread clamping device is arranged, wherein the support profile at least partially surrounds an interior in which the thread clamping device is arranged, wherein the support profile in cross section has a base and two legs extending from the base.
  • Such a thread monitor arrangement is known from GB 1 172 893 A.
  • warp beams or warp rolls in which a plurality of threads are wound side by side. From such warp beams, the so-called warp is pulled off during weaving or knitting.
  • the coils are arranged in a gate. Usually, a plurality of coils are arranged one above the other and a plurality of such groups of coils one behind the other.
  • V-gate An embodiment of such a gate is formed by a so-called V-gate.
  • the coils are placed on a plan, which has the shape of a V.
  • the threads are biased together via a pipe system and then guided individually through a thread monitor assembly.
  • the thread monitor assembly has a thread clamping device that holds the thread in the event of a fault, for example, when a thread breaks on the way to the warper or warp beam.
  • there is also a sensor on such a thread monitor arrangement which detects the presence of a thread. If several coils are arranged one above the other, then a corresponding number of thread monitor arrangements are arranged one above the other.
  • a support profile for this purpose, for example, has a rectangular or U-shape in cross section. Such a profile shape has a greater rigidity than, for example, a flat material.
  • the thread clamping device is attached to the support profile.
  • Such a design is known for example from DE 198 23 613.
  • the invention has for its object to facilitate at a less susceptible gate handling.
  • the thread monitor assembly is protected by the support profile. It is therefore less sensitive to contamination.
  • the risk that the operator injured on the thread monitor assembly is kept smaller. It is practically no longer possible that result in thread wraps around the thread clamping device.
  • the thread clamping device no longer bothers when replacing individual coils, which may be necessary if a coil is defective or empty.
  • the interior in the supporting profile thus gets an additional function. It not only serves to give the support profile a shape that leads to a higher rigidity. He now also serves to position the thread clamping device, so that the support profile provides protection for the thread clamping device.
  • the slot facilitates the insertion or threading of a thread in the thread monitor assembly. You no longer need an auxiliary tool, such as an eyelet on a handle, which leads first through the thread clamping device, then inserts the thread and then pulls the eyelet back. You can thread the thread with a predetermined length directly through the slot Lead in the base and then insert in the thread clamping device. Since the slot continues at least in one leg, but usually also in both, you can easily reach the thread clamping device even if it is located in the middle of the support profile. Such a slot is dimensioned so that it does not unduly weaken the support profile, that is, the remaining portions of the legs are sufficient to support the thread clamping devices, which are arranged on the support profile, to a sufficient extent.
  • the thread clamping device preferably has a stationary first clamping element attached to the carrier profile and a movable second clamping element fastened to a cover protection which at least partially covers the interior.
  • the thread clamping device is then able to generate or release a force acting on the thread by displacing the two clamping elements holding force.
  • the cover protector, to which the second clamping element is attached then has two functions. He covers on the one hand the interior, so that the risk of contamination of the interior is kept small. On the other hand, it also serves to support the clamping element. The cover thus has an additional hold function. As a result, the assembly of the thread clamping device is facilitated. You can set the first clamping element on the support section and the second element on the cover. By mounting the cover protector on the support profile the thread clamping device is then simultaneously assembled.
  • the cover protection against the support profile is displaced.
  • the cover protection gets so then a third function. It serves to displace the second clamping element relative to the first clamping element.
  • the action of the clamping device can be changed to the thread.
  • the two clamping elements are moved together, then the thread is held.
  • the two clamping elements are moved apart, then the thread is released.
  • the second clamping elements of all thread clamping devices can be arranged on the same cover, so that you can activate or deactivate all thread clamping devices with a single displacement movement.
  • At least one of the clamping elements has a spring-mounted clamping surface.
  • At least one of the clamping elements is designed as a spring element, for example as a leaf spring.
  • a spring element for example as a leaf spring.
  • a leaf spring is a simple element that can be made from spring steel. When using a leaf spring, the thread clamping device is very inexpensive.
  • the cover protector preferably has a controllable displacement drive. About this displacement drive can then control the thread clamping device. When using a spring-mounted clamping element, the thread clamping device can not only turn on and off. The controllable displacement drive can also adjust the thread tension.
  • the displacement drive has a deflection gear, with which it acts on the cover. So you do not have to arrange the displacement drive in the continuation of the cover, but can move him laterally. This measure ensures that the height of the gate does not have to be increased.
  • the cover is guided in the support profile.
  • the support profile thus ensures that the cover always has a predetermined orientation. With this orientation it is ensured that the two clamping elements of the thread clamping device can cooperate in the desired manner.
  • a yarn guide eyelet is arranged in front of and / or behind the thread clamping device in the thread running direction.
  • a thread guide eye for example be formed of ceramic. It ensures that the thread is always guided along a predetermined path when passing through the thread clamping device, so that a wear of the thread clamping device is prevented. It is ensured that the thread can not cut into any surfaces of the thread clamping device.
  • a thread sensor is arranged in the region of the thread clamping device.
  • the yarn sensor detects the presence of a thread and triggers, for example, the thread clamping device, if it is determined that the thread tension has dropped at the exit of the thread clamping device.
  • the support profile is attached to a gate frame, wherein the base of the support profile includes a predetermined acute angle with a longitudinal direction of the gate frame.
  • the gate frame ensures that one can use a variety of support profiles, each of which in turn carries a plurality of thread clamping devices.
  • the individual support profiles are held by the gate frame in a predetermined position to each other. Now, if one arranges the base of the carrier profile not parallel to the gate frame, but rotated by a few degrees, then the respective thread can be better introduced over the profile edge in the above-mentioned slot in the base.
  • Fig. 1 shows a gate arrangement 1, which is formed as a V-gate.
  • the gate assembly 1 serves to support a plurality of coils 2. From the coils 2 threads 3 are withdrawn and fed to a warping or labeling system 4. In plan view, the coils 2 are arranged along the legs of a V. At each position, where in Fig. 1, a coil 2 can be seen, a plurality of coils 2 can be arranged one above the other.
  • Each coil is associated with a thread monitor assembly 5, which is explained in more detail with reference to FIG. 2.
  • the thread monitor assembly 5 initially has a support profile 6, which has a U-shape in cross section.
  • the support section 6 thus has a base 7, depart from the two legs 8, 9.
  • the two legs 8, 9 are arranged at a right angle to the base 7. This is not mandatory.
  • the support profile 6 surrounds an interior 10 on three sides. On the base 7 opposite side of the interior 10 is covered by a cover 11.
  • the cover 11 may extend not only, as shown, over part of the length of the support profile 6, but also over its entire length.
  • the cover protector 11 has laterally projecting lugs 12 which are guided in guide slots 13 of the legs 8, 9 are.
  • the guide slots 13 are adjacent to the open side of the U.
  • the cover 11 is displaced in the direction of a double arrow 14 relative to the support section 6.
  • a toggle 15 is provided, which engages with a lever arm 16 in an opening 17 in the cover 11.
  • the cover protector 11 is raised or lowered.
  • a second lever arm 19 is provided, which can be moved in the direction of a double arrow 20, that is perpendicular to the base 7.
  • a non-illustrated drive is provided, for example, as a piston Cylinder arrangement can be executed.
  • the thread monitor arrangement has a thread clamping device 21, which is arranged in the space enclosed by the support profile 6 and the cover 11 11 cavity.
  • the thread clamping device 21 has a first clamping element 22 which is fixed to the support profile 6.
  • the first clamping element 22 is thus arranged stationary. It is formed by a curved leaf spring.
  • the thread clamping device 21 has a second clamping element 23 which is secured to the cover 11, for example by means of a fastening arm 24 shown only schematically.
  • a fastening arm 24 shown only schematically.
  • the second clamping element 23 is formed as a leaf spring.
  • the formation of the two clamping elements 22, 23 as leaf springs has the advantage that you can adjust the clamping force with which the thread 3 between the two clamping elements 22, 23, within certain limits. If the two clamping elements 22, 23 are moved against each other, then the clamping force increases with increasing movement of the cover 11 down. In the same way, one can gradually release the clamping force when the cover protector 11 is moved upwards with the second clamping element 23. This can avoid that at the moment of starting the warping or warping 4 abruptly collapses the thread tension. Rather, it is possible to reduce the thread tension gradually until the warping or warping system 4 has reached the desired operating speed.
  • yarn guide eyelets 26, 27 are arranged, which are formed of ceramic. This thread guide eyelets 26, 27 are therefore subject to little or no wear. They keep the thread 3 with the thread clamping device 21 open by both clamping elements 22, 23 away.
  • a thread sensor 28 is arranged, which reports whether a thread has been lost (thread breakage). If this is the case or the tension of the thread decreases, then the thread clamping device 21 is activated, ie the second clamping element 23 is moved against the first clamping element 22 and holds the thread firmly.
  • not only the thread guides 26, 27 have a slot 29.
  • the base 7 of the support profile 6 has a slot 30 which continues over a small distance in the two legs 8, 9. The slot can pass in the legs 8, 9 in a circular opening, which then coincides with the opening of the yarn guide 26, 27 or larger.
  • the thread monitor assembly 5 is arranged so that its base 6 is not arranged at a right angle, but at an acute angle to the longitudinal direction of a gate frame 31. This facilitates the insertion of the thread over the edge of the profile 6 in the slot 30.
  • the threads 3 are guided from the spools 2 through the slot 30 into the yarn guides 26, 27 and the yarn sensor 28. They automatically get into the thread clamping device 21, which is open for the purpose of introducing the threads 3 or only acts with a low tension on the threads.
  • the threads 3 are then fixed in the warping or warping 4, for example on a warping drum.
  • the thread clamping devices 21 are moved together, so that they exert a relatively large clamping force on the threads 3. With increasing speed of the warping or warping system 4, the force exerted on the threads 3 clamping force is withdrawn and thus lowered the thread tension. This can be easy Way done on the control of the position of the cover 11.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Warping, Beaming, Or Leasing (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Die Erfindung betrifft eine Fadenwächteranordnung einer Fadenklemmeinrichtung und einem Tragprofil, an dem die Fadenklemmeinrichtung angeordnet ist, wobei das Tragprofil zumindest teilweise einen Innenraum umgibt, in dem die Fadenklemmeinrichtung angeordnet ist, wobei das Tragprofil im Querschnitt eine Basis und zwei von der Basis ausgehende Schenkel aufweist.The invention relates to a thread monitor arrangement of a thread clamping device and a support profile on which the thread clamping device is arranged, wherein the support profile at least partially surrounds an interior in which the thread clamping device is arranged, wherein the support profile in cross section has a base and two legs extending from the base.

Ein derartiger Fadenwächteranordnung ist aus GB 1 172 893 A bekannt.Such a thread monitor arrangement is known from GB 1 172 893 A.

In der Textilindustrie benötigt man Kettbäume oder Zettelwalzen, bei denen eine Vielzahl von Fäden nebeneinander aufgewickelt ist. Von derartigen Kettbäumen wird beim Weben oder Wirken die sogenannte Kette abgezogen.In the textile industry, one needs warp beams or warp rolls in which a plurality of threads are wound side by side. From such warp beams, the so-called warp is pulled off during weaving or knitting.

Da beim Herstellen eines Kettbaumes eine Vielzahl von Fäden zugeführt werden muß, benötigt man eine entsprechend große Anzahl von Spulen. Dies gilt auch dann, wenn nicht die gesamte Breite der Kette auf einmal erzeugt wird, sondern die Kette in mehreren Durchgängen zusammengestellt wird. Die Spulen sind dazu in einem Gatter angeordnet. Üblicherweise werden mehrere Spulen übereinander angeordnet und mehrere derartige Spulengruppen hintereinander.Since a large number of threads must be supplied when producing a warp beam, a correspondingly large number of coils are required. This is true even if not the entire width of the chain is generated at once, but the chain is assembled in several passes. The coils are arranged in a gate. Usually, a plurality of coils are arranged one above the other and a plurality of such groups of coils one behind the other.

Eine Ausbildung eines derartigen Gatters wird durch ein sogenanntes V-Gatter gebildet. Hier sind die Spulen auf einem Grundriß aufgestellt, der die Form eines V hat. Bei einem derartigen V-Gatter gibt es üblicherweise keine definierte, geregelte Einzelfadenspannung. Die Fäden werden gemeinsam über ein Rohrsystem vorgespannt und danach einzeln durch eine Fadenwächteranordnung geführt. Die Fadenwächteranordnung weist eine Fadenklemmeinrichtung auf, die im Fehlerfall, beispielsweise bei Abriß eines Fadens auf dem Weg zur Schärmaschine oder zum Kettbaum, den Faden festhält. In vielen Fällen gibt es an einer derartigen Fadenwächteranordnung auch noch einen Sensor, der die Anwesenheit eines Fadens feststellt. Wenn mehrere Spulen übereinander angeordnet sind, dann sind auch eine entsprechende Anzahl von Fadenwächteranordnungen übereinander angeordnet. Zum Abstützen wird hierzu ein Tragprofil verwendet, das beispielsweise im Querschnitt eine Rechteck- oder U-Form aufweist. Eine derartige Profilform hat eine größere Steifigkeit als beispielsweise ein Flachmaterial. Die Fadenklemmeinrichtung ist an das Tragprofil angesetzt. Eine derartige Ausbildung ist beispielsweise aus DE 198 23 613 bekannt.An embodiment of such a gate is formed by a so-called V-gate. Here the coils are placed on a plan, which has the shape of a V. In such a V-gate there is usually no defined, regulated single filament voltage. The threads are biased together via a pipe system and then guided individually through a thread monitor assembly. The thread monitor assembly has a thread clamping device that holds the thread in the event of a fault, for example, when a thread breaks on the way to the warper or warp beam. In many cases, there is also a sensor on such a thread monitor arrangement, which detects the presence of a thread. If several coils are arranged one above the other, then a corresponding number of thread monitor arrangements are arranged one above the other. To support a support profile is used for this purpose, for example, has a rectangular or U-shape in cross section. Such a profile shape has a greater rigidity than, for example, a flat material. The thread clamping device is attached to the support profile. Such a design is known for example from DE 198 23 613.

Diese Ausbildung hat sich zwar prinzipiell bewährt. Man beobachtet aber vielfach, daß sich in einem derartigen Gatter Störungen ergeben, beispielsweise durch Fadenumschlingungen, die dazu führen, daß Teile des Gatters ein- oder abgeschnitten werden.This training has proven itself in principle. However, it is often observed that disturbances occur in such a gate, for example due to thread wraps, which lead to parts of the gate being cut in or cut off.

Der Erfindung liegt die Aufgabe zugrunde, bei einem weniger störanfälligen Gatter die Handhabung zu erleichtern.The invention has for its object to facilitate at a less susceptible gate handling.

Diese Aufgabe wird bei einer Fadenwächteranordnung der eingangs genannten Art dadurch gelöst, daß im Bereich der Fadenklemmeinrichtung ein die Basis durchsetzender Schlitz vorgesehen ist, der sich über eine vorbestimmte Länge in zumindest einem Schenkel fortsetzt.This object is achieved with a thread monitor arrangement of the type mentioned above in that in the region of the thread clamping device, a base passing through the slot is provided, which continues over a predetermined length in at least one leg.

Mit dieser Ausgestaltung wird erreicht, daß die Fadenwächteranordnung durch das Tragprofil geschützt ist. Sie ist daher weniger empfindlich gegen Verschmutzungen. Das Risiko, daß sich das Bedienungspersonal an der Fadenwächteranordnung verletzt, wird kleiner gehalten. Es ist praktisch nicht mehr möglich, daß sich Fadenumschlingungen um die Fadenklemmeinrichtung ergeben. Die Fadenklemmeinrichtung stört auch nicht mehr beim Auswechseln von einzelnen Spulen, was erforderlich sein kann, wenn eine Spule defekt oder leer ist. Der Innenraum im Tragprofil bekommt also eine zusätzliche Funktion. Er dient nicht nur dazu, dem Tragprofil eine Form zu geben, die zu einer höheren Steifigkeit führt. Er dient nun auch zur Positionierung der Fadenklemmeinrichtung, so daß das Tragprofil einen Schutz für die Fadenklemmeinrichtung bietet.With this configuration it is achieved that the thread monitor assembly is protected by the support profile. It is therefore less sensitive to contamination. The risk that the operator injured on the thread monitor assembly is kept smaller. It is practically no longer possible that result in thread wraps around the thread clamping device. The thread clamping device no longer bothers when replacing individual coils, which may be necessary if a coil is defective or empty. The interior in the supporting profile thus gets an additional function. It not only serves to give the support profile a shape that leads to a higher rigidity. He now also serves to position the thread clamping device, so that the support profile provides protection for the thread clamping device.

Der Schlitz erleichtert das Einführen oder Einfädeln eines Fadens in die Fadenwächteranordnung. Man benötigt kein Hilfswerkzeug mehr, beispielsweise eine Öse an einem Stiel, die man zunächst durch die Fadenklemmeinrichtung führt, den Faden dann einlegt und die Öse dann wieder zurückzieht. Man kann den Faden mit einer vorbestimmten Länge direkt durch den Schlitz in der Basis führen und dann in die Fadenklemmeinrichtung einlegen. Da sich der Schlitz zumindest in einem Schenkel fortsetzt, in der Regel aber auch in beiden, kann man ohne Probleme die Fadenklemmeinrichtung auch dann erreichen, wenn sie inmitten des Tragprofils angeordnet ist. Ein derartiger Schlitz ist so dimensioniert, daß er das Tragprofil nicht übermäßig schwächt, d.h. die verbleibenden Bereiche der Schenkel reichen aus, um die Fadenklemmeinrichtungen, die am Tragprofil angeordnet sind, in ausreichendem Maße abzustützen.The slot facilitates the insertion or threading of a thread in the thread monitor assembly. You no longer need an auxiliary tool, such as an eyelet on a handle, which leads first through the thread clamping device, then inserts the thread and then pulls the eyelet back. You can thread the thread with a predetermined length directly through the slot Lead in the base and then insert in the thread clamping device. Since the slot continues at least in one leg, but usually also in both, you can easily reach the thread clamping device even if it is located in the middle of the support profile. Such a slot is dimensioned so that it does not unduly weaken the support profile, that is, the remaining portions of the legs are sufficient to support the thread clamping devices, which are arranged on the support profile, to a sufficient extent.

Bevorzugterweise weist die Fadenklemmeinrichtung ein am Tragprofil befestigtes stationäres erstes Klemmelement und ein an einem den Innenraum zumindest teilweise abdeckenden Abdeckschutz befestigtes, bewegliches zweites Klemmelement auf. Die Fadenklemmeinrichtung ist dann in der Lage, durch Verlagern der beiden Klemmelemente eine auf den Faden wirkende Haltekraft zu erzeugen oder zu lösen. Der Abdeckschutz, an dem das zweite Klemmelement befestigt ist, hat dann zwei Funktionen. Er deckt zum einen den Innenraum ab, so daß die Gefahr von Verschmutzungen des Innenraums klein gehalten wird. Zum anderen dient er auch dazu, das Klemmelement zu tragen. Der Abdeckschutz hat also zusätzlich eine Haltefunktion. Dadurch wird auch die Montage der Fadenklemmeinrichtung erleichtert. Man kann das erste Klemmelement am Tragprofil festlegen und das zweite Element am Abdeckschutz. Durch das Montieren des Abdeckschutzes am Tragprofil wird dann gleichzeitig die Fadenklemmeinrichtung zusammengesetzt.The thread clamping device preferably has a stationary first clamping element attached to the carrier profile and a movable second clamping element fastened to a cover protection which at least partially covers the interior. The thread clamping device is then able to generate or release a force acting on the thread by displacing the two clamping elements holding force. The cover protector, to which the second clamping element is attached, then has two functions. He covers on the one hand the interior, so that the risk of contamination of the interior is kept small. On the other hand, it also serves to support the clamping element. The cover thus has an additional hold function. As a result, the assembly of the thread clamping device is facilitated. You can set the first clamping element on the support section and the second element on the cover. By mounting the cover protector on the support profile the thread clamping device is then simultaneously assembled.

Vorzugsweise ist der Abdeckschutz gegenüber dem Tragprofil verlagerbar. Der Abdeckschutz bekommt dann also eine dritte Funktion. Er dient dazu, das zweite Klemmelement gegenüber dem ersten Klemmelement zu verlagern. Durch eine derartige Verlagerungsbewegung läßt sich die Einwirkung der Klemmeinrichtung auf den Faden verändern. Wenn die beiden Klemmelemente zusammengefahren werden, dann wird der Faden gehalten. Wenn die beiden Klemmelemente auseinandergefahren werden, dann wird der Faden freigegeben. Wenn in einem Tragprofil mehrere Fadenklemmeinrichtungen angeordnet sind, dann können auch die zweiten Klemmelemente aller Fadenklemmeinrichtungen am gleichen Abdeckschutz angeordnet sein, so daß man mit einer einzigen Verlagerungsbewegung sämtliche Fadenklemmeinrichtungen aktivieren oder deaktivieren kann.Preferably, the cover protection against the support profile is displaced. The cover protection gets so then a third function. It serves to displace the second clamping element relative to the first clamping element. By such a displacement movement, the action of the clamping device can be changed to the thread. When the two clamping elements are moved together, then the thread is held. When the two clamping elements are moved apart, then the thread is released. If a plurality of thread clamping devices are arranged in a support profile, then the second clamping elements of all thread clamping devices can be arranged on the same cover, so that you can activate or deactivate all thread clamping devices with a single displacement movement.

Vorzugsweise weist mindestens eines der Klemmelemente eine federnd gelagerte Klemmfläche auf. In diesem Fall kann man die Klemmkraft der Fadenklemmeinrichtung nicht nur an- und abschalten, sondern man kann auch die Spannung des Fadens gezielt einstellen. Wenn man die beiden Klemmelemente etwas auseinander bewegt, und zwar so, daß sie unter der Federkraft noch aneinander anliegen, dann verringert man die auf den Faden wirkende Haltekraft, ohne sie jedoch ganz aufzugeben. Damit verhindert man nach dem Starten des Wickelvorgangs einen schlagartigen Zusammenbruch der Fadenspannung, der bislang erfolgt ist, bis die normale Arbeitsgeschwindigkeit und damit eine höhere Spannung erreicht ist. Die Klemmkraft kann langsam abgebaut werden.Preferably, at least one of the clamping elements has a spring-mounted clamping surface. In this case, you can not only turn on and off the clamping force of the thread clamping device, but you can also set the tension of the thread targeted. If you move the two clamping elements slightly apart, in such a way that they still rest under the spring force, then you reduce the force acting on the thread holding force, but without giving up completely. This prevents after the start of the winding process a sudden collapse of the thread tension, which has been done until the normal operating speed and thus a higher voltage is reached. The clamping force can be reduced slowly.

Vorzugsweise ist zumindest eines der Klemmelemente als Federelement, beispielsweise als Blattfeder, ausgebildet. Man beschränkt sich also nicht darauf, nur die Lagerung des Klemmelementes federnd auszubilden. Vielmehr wird das gesamte Klemmelement federnd ausgebildet. Eine Blattfeder ist ein einfaches Element, das aus Federstahl hergestellt werden kann. Bei Verwendung einer Blattfeder wird die Fadenklemmeinrichtung sehr preisgünstig ausgeführt.Preferably, at least one of the clamping elements is designed as a spring element, for example as a leaf spring. One does not limit oneself to it, only the storage form the clamping element resiliently. Rather, the entire clamping element is resilient. A leaf spring is a simple element that can be made from spring steel. When using a leaf spring, the thread clamping device is very inexpensive.

Vorzugsweise weist der Abdeckschutz einen steuerbaren Verlagerungsantrieb auf. Über diesen Verlagerungsantrieb läßt sich dann die Fadenklemmeinrichtung steuern. Bei Verwendung eines federnd gelagerten Klemmelements läßt sich die Fadenklemmeinrichtung nicht nur ein- und ausschalten. Über den steuerbaren Verlagerungsantrieb läßt sich auch die Fadenspannung einstellen.The cover protector preferably has a controllable displacement drive. About this displacement drive can then control the thread clamping device. When using a spring-mounted clamping element, the thread clamping device can not only turn on and off. The controllable displacement drive can also adjust the thread tension.

Vorzugsweise weist der Verlagerungsantrieb ein Umlenkgetriebe auf, mit dem er auf den Abdeckschutz wirkt. Man muß den Verlagerungsantrieb also nicht in der Fortsetzung des Abdeckschutzes anordnen, sondern kann ihn seitlich dazu versetzen. Diese Maßnahme sorgt dafür, daß die Bauhöhe des Gatters nicht vergrößert werden muß.Preferably, the displacement drive has a deflection gear, with which it acts on the cover. So you do not have to arrange the displacement drive in the continuation of the cover, but can move him laterally. This measure ensures that the height of the gate does not have to be increased.

Vorzugsweise ist der Abdeckschutz im Tragprofil geführt. Das Tragprofil sorgt also dafür, daß der Abdeckschutz immer eine vorbestimmte Ausrichtung hat. Mit dieser Ausrichtung wird dafür gesorgt, daß die beiden Klemmelemente der Fadenklemmeinrichtung in gewünschter Weise zusammenwirken können.Preferably, the cover is guided in the support profile. The support profile thus ensures that the cover always has a predetermined orientation. With this orientation it is ensured that the two clamping elements of the thread clamping device can cooperate in the desired manner.

Vorzugsweise ist in Fadenlaufrichtung vor und/oder hinter der Fadenklemmeinrichtung eine Fadenführeröse angeordnet. Eine derartige Fadenführeröse kann beispielsweise aus Keramik gebildet sein. Sie sorgt dafür, daß der Faden beim Durchlaufen der Fadenklemmeinrichtung immer entlang eines vorbestimmten Pfades geführt wird, so daß ein Verschleiß der Fadenklemmeinrichtung verhindert wird. Es wird dafür gesorgt, daß sich der Faden nicht in irgendwelche Flächen der Fadenklemmeinrichtung einschneiden kann.Preferably, a yarn guide eyelet is arranged in front of and / or behind the thread clamping device in the thread running direction. Such a thread guide eye, for example be formed of ceramic. It ensures that the thread is always guided along a predetermined path when passing through the thread clamping device, so that a wear of the thread clamping device is prevented. It is ensured that the thread can not cut into any surfaces of the thread clamping device.

Bevorzugterweise ist im Bereich der Fadenklemmeinrichtung ein Fadensensor angeordnet. Der Fadensensor erfaßt die Anwesenheit eines Fadens und löst beispielsweise die Fadenklemmeinrichtung dann aus, wenn festgestellt wird, daß die Fadenspannung am Ausgang der Fadenklemmeinrichtung nachgelassen hat.Preferably, a thread sensor is arranged in the region of the thread clamping device. The yarn sensor detects the presence of a thread and triggers, for example, the thread clamping device, if it is determined that the thread tension has dropped at the exit of the thread clamping device.

Vorzugsweise ist das Tragprofil an einem Gatterrahmen befestigt, wobei die Basis des Tragprofils mit einer Längsrichtung des Gatterrahmens einen vorbestimmten spitzen Winkel einschließt. Der Gatterrahmen sorgt dafür, daß man eine Vielzahl von Tragprofilen verwenden kann, von denen jedes wiederum mehrere Fadenklemmeinrichtungen trägt. Die einzelnen Tragprofile werden durch den Gatterrahmen in einer vorbestimmten Position zueinander gehalten. Wenn man nun die Basis des Trägerprofils nicht parallel zum Gatterrahmen, sondern um einige Winkelgrade verdreht anordnet, dann läßt sich der jeweilige Faden besser über die Profilkante in den oben erwähnten Schlitz in der Basis einführen.Preferably, the support profile is attached to a gate frame, wherein the base of the support profile includes a predetermined acute angle with a longitudinal direction of the gate frame. The gate frame ensures that one can use a variety of support profiles, each of which in turn carries a plurality of thread clamping devices. The individual support profiles are held by the gate frame in a predetermined position to each other. Now, if one arranges the base of the carrier profile not parallel to the gate frame, but rotated by a few degrees, then the respective thread can be better introduced over the profile edge in the above-mentioned slot in the base.

Die Erfindung wird im folgenden anhand eines bevorzugten Ausführungsbeispiels in Verbindung mit der Zeichnung beschrieben. Hierin zeigen:

Fig. 1
eine Draufsicht auf eine Gatteranordnung und
Fig. 2
eine vergrößerte Darstellung einer Fadenwächteranordnung, teilweise im Aufriß.
The invention will be described below with reference to a preferred embodiment in conjunction with the drawings. Herein show:
Fig. 1
a plan view of a gate assembly and
Fig. 2
an enlarged view of a thread monitor assembly, partially in elevation.

Fig. 1 zeigt eine Gatteranordnung 1, die als V-Gatter ausgebildet ist. Die Gatteranordnung 1 dient dazu, eine Vielzahl von Spulen 2 zu lagern. Von den Spulen 2 werden Fäden 3 abgezogen und einer Schär- oder Zettelanlage 4 zugeführt. In der Draufsicht sind die Spulen 2 entlang der Schenkel eines V angeordnet. An jeder Position, wo in Fig. 1 eine Spule 2 erkennbar ist, können mehrere Spulen 2 übereinander angeordnet sein.Fig. 1 shows a gate arrangement 1, which is formed as a V-gate. The gate assembly 1 serves to support a plurality of coils 2. From the coils 2 threads 3 are withdrawn and fed to a warping or labeling system 4. In plan view, the coils 2 are arranged along the legs of a V. At each position, where in Fig. 1, a coil 2 can be seen, a plurality of coils 2 can be arranged one above the other.

Jeder Spule ist eine Fadenwächteranordnung 5 zugeordnet, die anhand von Fig. 2 näher erläutert wird. Die Fadenwächteranordnung 5 weist zunächst ein Tragprofil 6 auf, das im Querschnitt eine U-Form aufweist. Das Tragprofil 6 weist also eine Basis 7 auf, von der zwei Schenkel 8, 9 abgehen. Im vorliegenden Ausführungsbeispiel sind die beiden Schenkel 8, 9 unter einem rechten Winkel zur Basis 7 angeordnet. Dies ist aber nicht zwingend.Each coil is associated with a thread monitor assembly 5, which is explained in more detail with reference to FIG. 2. The thread monitor assembly 5 initially has a support profile 6, which has a U-shape in cross section. The support section 6 thus has a base 7, depart from the two legs 8, 9. In the present embodiment, the two legs 8, 9 are arranged at a right angle to the base 7. This is not mandatory.

Das Tragprofil 6 umgibt einen Innenraum 10 auf drei Seiten. Auf der der Basis 7 gegenüberliegenden Seite ist der Innenraum 10 durch einen Abdeckschutz 11 abgedeckt. Der Abdeckschutz 11 kann sich nicht nur, wie dargestellt, über einen Teil der Länge des Tragprofils 6 erstrecken, sondern auch über seine gesamte Länge.The support profile 6 surrounds an interior 10 on three sides. On the base 7 opposite side of the interior 10 is covered by a cover 11. The cover 11 may extend not only, as shown, over part of the length of the support profile 6, but also over its entire length.

Der Abdeckschutz 11 weist seitlich vorstehende Nasen 12 auf, die in Führungsschlitzen 13 der Schenkel 8, 9 geführt sind. Die Führungsschlitze 13 sind dabei der offenen Seite des U benachbart.The cover protector 11 has laterally projecting lugs 12 which are guided in guide slots 13 of the legs 8, 9 are. The guide slots 13 are adjacent to the open side of the U.

Der Abdeckschutz 11 ist in Richtung eines Doppelpfeils 14 gegenüber dem Tragprofil 6 verlagerbar. Hierzu ist ein Kniehebel 15 vorgesehen, der mit einem Hebelarm 16 in eine Öffnung 17 im Abdeckschutz 11 eingreift. Wenn der Kniehebel 15 um eine Achse 18 verdreht wird, dann wird der Abdeckschutz 11 angehoben oder abgesenkt. Zum Verdrehen des Kniehebels 15 um die Achse 18 ist ein zweiter Hebelarm 19 vorgesehen, der in Richtung eines Doppelpfeils 20 bewegt werden kann, also senkrecht zur Basis 7. Zum Bewegen des Hebelarms 19 ist ein nicht näher dargestellter Antrieb vorgesehen, der beispielsweise als Kolben-Zylinder-Anordnung ausgeführt sein kann.The cover 11 is displaced in the direction of a double arrow 14 relative to the support section 6. For this purpose, a toggle 15 is provided, which engages with a lever arm 16 in an opening 17 in the cover 11. When the toggle lever 15 is rotated about an axis 18, the cover protector 11 is raised or lowered. To rotate the toggle lever 15 about the axis 18, a second lever arm 19 is provided, which can be moved in the direction of a double arrow 20, that is perpendicular to the base 7. For moving the lever arm 19, a non-illustrated drive is provided, for example, as a piston Cylinder arrangement can be executed.

Die Fadenwächteranordnung weist eine Fadenklemmeinrichtung 21 auf, die in dem vom Tragprofil 6 und dem Abdeckschutz 11 umschlossenen Hohlraum 10 angeordnet ist. Die Fadenklemmeinrichtung 21 weist ein erstes Klemmelement 22 auf, das am Tragprofil 6 befestigt ist. Das erste Klemmelement 22 ist also stationär angeordnet. Es ist durch eine gebogene Blattfeder gebildet.The thread monitor arrangement has a thread clamping device 21, which is arranged in the space enclosed by the support profile 6 and the cover 11 11 cavity. The thread clamping device 21 has a first clamping element 22 which is fixed to the support profile 6. The first clamping element 22 is thus arranged stationary. It is formed by a curved leaf spring.

Die Fadenklemmeinrichtung 21 weist ein zweites Klemmelement 23 auf, das am Abdeckschutz 11 befestigt ist, beispielsweise mit Hilfe eines nur schematisch dargestellten Befestigungsarms 24. Wenn also der Abdeckschutz 11 in Richtung des Doppelpfeiles 14 bewegt wird, dann wird auch das zweite Klemmelement 23 in Richtung eines Doppelpfeils 25 bewegt. Auch das zweite Klemmelement 23 ist als Blattfeder ausgebildet.The thread clamping device 21 has a second clamping element 23 which is secured to the cover 11, for example by means of a fastening arm 24 shown only schematically. Thus, if the cover 11 is moved in the direction of the double arrow 14, then the second clamping element 23 in the direction of Double Arrow 25 moves. Also, the second clamping element 23 is formed as a leaf spring.

Die Ausbildung der beiden Klemmelemente 22, 23 als Blattfedern hat den Vorteil, daß man die Klemmkraft, mit der der Faden 3 zwischen den beiden Klemmelementen 22, 23 gehalten wird, in gewissen Grenzen einstellen kann. Wenn die beiden Klemmelemente 22, 23 gegeneinander gefahren werden, dann steigt die Klemmkraft mit zunehmender Bewegung des Abdeckschutzes 11 nach unten an. In gleicher Weise kann man die Klemmkraft allmählich lösen, wenn der Abdeckschutz 11 mit dem zweiten Klemmelement 23 nach oben gefahren wird. Damit kann man vermeiden, daß im Moment des Anfahrens der Schär- oder Zettelanlage 4 schlagartig die Fadenspannung zusammenbricht. Man kann vielmehr die Fadenspannung allmählich abbauen, bis die Schär- oder Zettelanlage 4 die gewünschte Betriebsgeschwindigkeit erreicht hat.The formation of the two clamping elements 22, 23 as leaf springs has the advantage that you can adjust the clamping force with which the thread 3 between the two clamping elements 22, 23, within certain limits. If the two clamping elements 22, 23 are moved against each other, then the clamping force increases with increasing movement of the cover 11 down. In the same way, one can gradually release the clamping force when the cover protector 11 is moved upwards with the second clamping element 23. This can avoid that at the moment of starting the warping or warping 4 abruptly collapses the thread tension. Rather, it is possible to reduce the thread tension gradually until the warping or warping system 4 has reached the desired operating speed.

In Fadenlaufrichtung vor und hinter der Fadenklemmeinrichtung 21 sind Fadenführerösen 26, 27 angeordnet, die aus Keramik gebildet sind. Diese Fadenführerösen 26, 27 unterliegen daher nur einem geringen oder sogar gar keinem Verschleiß. Sie halten den Faden 3 bei geöffneter Fadenklemmeinrichtung 21 von beiden Klemmelementen 22, 23 fern.In the direction of yarn travel in front of and behind the thread clamping device 21 yarn guide eyelets 26, 27 are arranged, which are formed of ceramic. This thread guide eyelets 26, 27 are therefore subject to little or no wear. They keep the thread 3 with the thread clamping device 21 open by both clamping elements 22, 23 away.

In Laufrichtung des Fadens hinter der Fadenklemmeinrichtung 21 ist ein Fadensensor 28 angeordnet, der meldet, ob ein Faden verlorengegangen ist (Fadenbruch). Wenn dies der Fall ist oder die Spannung des Fadens nachläßt, dann wird die Fadenklemmeinrichtung 21 aktiviert, d.h. das zweite Klemmelement 23 wird gegen das erste Klemmelement 22 bewegt und hält den Faden fest.In the running direction of the thread behind the thread clamping device 21, a thread sensor 28 is arranged, which reports whether a thread has been lost (thread breakage). If this is the case or the tension of the thread decreases, then the thread clamping device 21 is activated, ie the second clamping element 23 is moved against the first clamping element 22 and holds the thread firmly.

Um den Faden 3 in die Fadenführer 26, 27 und die Fadenklemmeinrichtung 21 einführen zu können, weisen nicht nur die Fadenführer 26, 27 einen Schlitz 29 auf. Auch die Basis 7 des Tragprofils 6 weist einen Schlitz 30 auf, der sich über eine kleine Strecke auch in den beiden Schenkeln 8, 9 fortsetzt. Der Schlitz kann in den Schenkeln 8, 9 auch in eine kreisrunde Öffnung übergehen, die dann mit der Öffnung der Fadenführer 26, 27 übereinstimmt oder größer ist.In order to be able to insert the thread 3 into the thread guides 26, 27 and the thread clamping device 21, not only the thread guides 26, 27 have a slot 29. Also, the base 7 of the support profile 6 has a slot 30 which continues over a small distance in the two legs 8, 9. The slot can pass in the legs 8, 9 in a circular opening, which then coincides with the opening of the yarn guide 26, 27 or larger.

Wie aus der vergrößerten Ausschnittsdarstellung der Fig. 1 hervorgeht, ist die Fadenwächteranordnung 5 so angeordnet, daß ihre Basis 6 nicht unter einem rechten Winkel, sondern unter einem spitzen Winkel zur Längsrichtung eines Gatterrahmens 31 angeordnet ist. Dies erleichtert das Einführen des Fadens über die Kante des Profils 6 in dem Schlitz 30.As is apparent from the enlarged sectional view of Fig. 1, the thread monitor assembly 5 is arranged so that its base 6 is not arranged at a right angle, but at an acute angle to the longitudinal direction of a gate frame 31. This facilitates the insertion of the thread over the edge of the profile 6 in the slot 30.

Vor Beginn des Wickelns in der Schär- oder Zettelanlage 4 werden die Fäden 3 von den Spulen 2 aus durch den Schlitz 30 in die Fadenführer 26, 27 und den Fadensensor 28 geführt. Dabei geraten sie automatisch in die Fadenklemmeinrichtung 21, die zum Zwecke des Einführens der Fäden 3 geöffnet ist oder nur mit einer geringen Spannung auf die Fäden wirkt. Die Fäden 3 werden dann in der Schär- oder Zettelanlage 4 festgelegt, beispielsweise an einer Schärtrommel. Zu Beginn eines Schärvorgangs sind die Fadenklemmeinrichtungen 21 zusammengefahren, so daß sie eine relativ große Klemmkraft auf die Fäden 3 ausüben. Mit zunehmender Geschwindigkeit der Schär- oder Zettelanlage 4 wird die auf die Fäden 3 ausgeübte Klemmkraft zurückgenommen und damit die Fadenspannung abgesenkt. Dies kann auf einfache Weise über die Steuerung der Position des Abdeckschutzes 11 erfolgen.Before the beginning of the winding in the warping or warping system 4, the threads 3 are guided from the spools 2 through the slot 30 into the yarn guides 26, 27 and the yarn sensor 28. They automatically get into the thread clamping device 21, which is open for the purpose of introducing the threads 3 or only acts with a low tension on the threads. The threads 3 are then fixed in the warping or warping 4, for example on a warping drum. At the beginning of a warping operation, the thread clamping devices 21 are moved together, so that they exert a relatively large clamping force on the threads 3. With increasing speed of the warping or warping system 4, the force exerted on the threads 3 clamping force is withdrawn and thus lowered the thread tension. This can be easy Way done on the control of the position of the cover 11.

Claims (10)

  1. Yarn detection system (5) having a yarn clamping device (21) and a carrier profile (6) on which the yarn clamping device (21) is arranged, the carrier profile (6) at least partly surrounding an internal space (10) in which the yarn clamping device (21) is arranged, the carrier profile (6) having in cross section a base (7) and two limbs (8, 9) originating from the base, characterized in that, in the region of the yarn clamping device (21), a slot (30) passing through the base (7) is provided, which is extended over a predetermined length in at least one limb (8, 9).
  2. Yarn detection system according to Claim 1, characterized in that the yarn clamping device (21) has a stationary, first clamping element (22) fixed to the carrier profile (6), and a movable, second clamping element (23) fixed to a guard cover (11) at least partly covering the internal space (10).
  3. Yarn detection system according to Claim 2, characterized in that the guard cover (11) can be displaced with respect to the carrier profile (6).
  4. Yarn detection system according to Claim 2 or 3, characterized in that at least one of the clamping elements (22, 20) has a spring-mounted clamping surface.
  5. Yarn detection system according to one of Claims 2 to 4, characterized in that at least one of the clamping elements (22, 23) is formed as a spring element.
  6. Yarn detection system according to one of Claims 2 to 5, characterized in that the guard cover (11) has a controllable displacement drive (19, 20).
  7. Yarn detection system according to Claim 6, characterized in that the displacement drive (19, 20) has a deflection mechanism (15) with which it acts on the guard cover (11).
  8. Yarn detection system according to one of Claims 2 to 7, characterized in that the guard cover (11) is guided in the carrier profile (6).
  9. Yarn detection system according to one of Claims 1 to 8, characterized in that a yarn guide eye (26, 27) is arranged in front of and/or behind the thread clamping device (21) in the yarn running direction.
  10. Yarn detection system according to one of Claims 1 to 9, characterized in that the carrier profile (6) is fixed to a lattice frame (31), the base (7) of the carrier profile (6) enclosing a predetermined acute angle with a longitudinal direction of the lattice frame (31).
EP20040009047 2004-04-16 2004-04-16 Yarn detection system Expired - Lifetime EP1595985B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE200450000834 DE502004000834D1 (en) 2004-04-16 2004-04-16 Yarn detection system
ES04009047T ES2262058T3 (en) 2004-04-16 2004-04-16 THREAD SURVEILLANCE PROVISION.
EP20040009047 EP1595985B1 (en) 2004-04-16 2004-04-16 Yarn detection system
CNB2005100657940A CN100526527C (en) 2004-04-16 2005-04-18 Yarn detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20040009047 EP1595985B1 (en) 2004-04-16 2004-04-16 Yarn detection system

Publications (2)

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EP1595985A1 EP1595985A1 (en) 2005-11-16
EP1595985B1 true EP1595985B1 (en) 2006-06-21

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EP (1) EP1595985B1 (en)
CN (1) CN100526527C (en)
DE (1) DE502004000834D1 (en)
ES (1) ES2262058T3 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109402820B (en) * 2018-12-17 2023-10-13 广东溢达纺织有限公司 Warping auxiliary equipment and warping system
CN110240010A (en) * 2019-06-26 2019-09-17 西安工程大学 A kind of tension controller of high-performance fiber

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH452452A (en) * 1966-02-15 1968-05-31 Benninger Ag Maschf Thread tensioning device
DE7820702U1 (en) * 1978-07-10 1979-12-20 W. Schlafhorst & Co, 4050 Moenchengladbach COIL GATE
CH681634A5 (en) * 1990-07-16 1993-04-30 Benninger Ag Maschf Warp winding machine - includes creel with tension and detector which in event of break closes magnetic switch to stop winder
CH683192A5 (en) * 1991-05-01 1994-01-31 Benninger Ag Maschf Creel, in particular creel.
DE19823613A1 (en) * 1998-05-27 1999-12-02 Sucker Mueller Hacoba Gmbh Thread brake device
EP1162295B1 (en) * 2000-05-17 2009-10-21 Karl Mayer Textilmaschinen AG Method for operating a creel and creel for a winding machine

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EP1595985A1 (en) 2005-11-16
CN100526527C (en) 2009-08-12
ES2262058T3 (en) 2006-11-16
CN1683621A (en) 2005-10-19
DE502004000834D1 (en) 2006-08-03

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