EP0511160B1 - Device for monitoring the run of the thread on a creel - Google Patents

Device for monitoring the run of the thread on a creel Download PDF

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Publication number
EP0511160B1
EP0511160B1 EP92810268A EP92810268A EP0511160B1 EP 0511160 B1 EP0511160 B1 EP 0511160B1 EP 92810268 A EP92810268 A EP 92810268A EP 92810268 A EP92810268 A EP 92810268A EP 0511160 B1 EP0511160 B1 EP 0511160B1
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EP
European Patent Office
Prior art keywords
spring
thread
clamping
adjustment lever
monitor
Prior art date
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Expired - Lifetime
Application number
EP92810268A
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German (de)
French (fr)
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EP0511160B2 (en
EP0511160A1 (en
Inventor
Heiner Lieb
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Benninger AG Maschinenfabrik
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Benninger AG Maschinenfabrik
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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • D02H13/22—Tensioning devices
    • D02H13/24—Tensioning devices for individual threads
    • 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
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/02—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material
    • B65H63/024—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to reduction in material tension, failure of supply, or breakage, of material responsive to breakage of materials
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02H—WARPING, BEAMING OR LEASING
    • D02H13/00—Details of machines of the preceding groups
    • D02H13/02—Stop motions
    • D02H13/04—Stop motions responsive to breakage, slackness, or excessive tension of threads, with detectors for individual threads or small groups of threads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2551/00—Means for control to be used by operator; User interfaces
    • B65H2551/20—Display means; Information output means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • the invention relates to a device for monitoring the thread travel on a bobbin creel, in particular on a slip creel according to the preamble of claim 1.
  • Such devices have the task of imparting a certain thread tension to the threads drawn from the bobbin creel, but also reducing the thread tension. e.g. in the event of a thread breakage and to clamp the threads when the machine comes to a standstill in order to prevent overrun.
  • Comparable devices were used in particular in the case of V-shaped slip gates, in which the deflection of the threads in the direction of the winding device takes place directly on the guard needle.
  • the clamping force can be adapted to the thread quality, regardless of the position of the respective winding point in the creel. So far, it was common to install springs of different strengths in the clamping devices, but this required a complex disassembly.
  • This object is achieved according to the invention with a device which has the features in claim 1.
  • the adjusting device assigned to each clamping device allows the spring force on the spring device to be adapted to the individual circumstances in the simplest way.
  • the spring device is particularly advantageously designed as a compression spring which is mounted on a pressure pin connected to the clamping jaw, the pressure pin cooperating at its end with a guide link and being able to be pressed against the spring force in the open position and the abutment of the compression spring being adjustable on the pressure pin is trained.
  • the displaceable abutment allows the compression spring to be tensioned or relaxed in the simplest way.
  • the abutment can be adjusted particularly advantageously with a linearly displaceable slide which has a guide link.
  • the adjusting device could practically only consist of this slide, which e.g. can be set manually.
  • a particularly advantageous actuation of the slide can also be achieved with a pivotably mounted adjusting lever which engages with a sliding joint in the slide at its free end.
  • the setting lever can e.g. be turned with a screwdriver.
  • this can be fixed by a cover plate, which at the same time also covers the clamping device and the adjusting device and thus protects against dust and fibers.
  • the cover plate can have an opening with a marking on which the set position of the adjusting lever can be read. Securing the setting once selected with the cover plate has the advantage that this setting is not lost due to improper manipulation.
  • the cover plates would have to be loosened, which may only be done by authorized personnel.
  • a particularly great flexibility of the device is obtained if the guard needle of the thread guard is also pretensioned with a tension spring, the bearing location of which on the frame is adjustable for changing the tensile force.
  • the thread tension or the reaction time of the guard needle can also be adapted to the drawn threads within certain limits.
  • the tension spring can also be attached to a pivoted adjustment lever.
  • Clamping device and thread monitor do not necessarily have to be arranged together within a creel.
  • the clamping device and the thread monitor form a structural unit with a common base plate and if the adjusting lever for the clamping device and the adjusting lever for the thread monitor can be fixed with a common cover plate.
  • the setting for the spring force acting on the guard needle can also be secured in the same way, with a corresponding opening in the cover plate and a marking also allowing the setting to be read from the outside.
  • the device consists of a unit in which the clamping device 1 and the thread monitor 2 are arranged on a common base plate 7.
  • This base plate is fixed to the vertical U-profile 30, which is arranged in front of each vertical row of winding units on the gate.
  • the thread 3 runs from the thread spool, not shown, between a movable clamping jaw 5 and a rigid clamping rib 8 and is deflected at the guard needle 32, where it runs in the direction of arrow a against the winding device.
  • the clamping jaw 5 has a hub 11, in which a pressure pin 6 is fastened with the aid of a securing pin 12. At its free end, this pressure pin has a rounded head 9 which is enlarged in diameter and which cooperates with a guide link 25 on a vertical control rod 24.
  • the pressure pin 6 is guided on the one hand in a bore 13 in the clamping rib 8 and on the other hand in a bore 15 in the base plate 7 such that the clamping jaw 5 can be displaced plane-parallel to the clamping rib 8.
  • the clamping jaw 5 is pressed against the clamping rib 8 with the aid of a compression spring 4. This compression spring is supported on the enlarged head 9 and lies on a washer 10 serving as an abutment.
  • a slide 17 is arranged, which can be moved linearly and approximately at right angles to the pressure pin 6.
  • the slide has a slot 18, which allows the pressure pin 6 to overlap in any relative position. While the slide is flat on the side of the clamping rib 8, it has on the opposite side a guide link 19 on which the washer 10 can slide. In its upper area, the slide is provided with a horizontal groove 20.
  • the slide is actuated by means of an adjusting lever 21. This is rotatably mounted on the base plate 7 and has a slot 23 into which a screwdriver can be inserted.
  • a cam 22 at the free end of the adjusting lever forms, together with the groove 20 in the slide 17, a thrust joint, with the aid of which the rotary movement is converted into a thrust movement.
  • the thread monitor 2 has the monitor needle 32 already briefly mentioned, which is, however, only indicated in FIG. 1.
  • This guard needle has a hook-shaped end and is pivotally mounted on a joint 34.
  • the watchdog needle is designed as a double lever, with a tension spring 35 being attached to the lever arm 33, which gives the watchdog needle a certain torque.
  • the opposite end of the tension spring 35 is suspended on a rotatably mounted adjusting lever 36, which is also provided with a slot 39 for rotation.
  • the end of the lever arm 33 also interacts with a switching device 37, which triggers a switching operation for stopping the machine and activating the clamping device 1 at a specific lever position.
  • the base plate 7 is provided with threaded holes 16 at three different locations. These bores are used to fasten a cover plate 26, as can be seen from FIG. 3. This cover plate can be screwed against the base plate 7 using screws 27.
  • the two adjusting levers 21 and 36 are arranged in the plane of the base plate in such a way that they can no longer pivot when the cover plate is screwed on. However, openings 28 and 40 are arranged in the cover plate through which the position of the adjusting levers can be viewed. Markings 29 and 38 on the cover plate also allow the selected setting to be read.
  • the cover plate 26 is laterally provided with a wing 43 which projects beyond the U-profile 30.
  • a hook-shaped slot 31 is arranged in this wing, through which the thread can be inserted.
  • An upper rib 41 runs along this slot, which also serves as a catch bearing for the guard needle 32 in a lowered position in the event of a thread break. This position is indicated in FIG. 3 by dash-dotted lines.
  • a lower rib 42 on the cover plate serves as a rear boundary for the guard needle 32 with normal thread tension in the operating position.
  • the watchdog needle can be unhooked from the joint 34 in the simplest way by means of a bayonet lock, which is not shown here.
  • FIG 4 shows again the device according to Figure 1 with the same basic setting of the spring device, but with the jaw closed. This position is reached when the machine is at a standstill, e.g. can be triggered by a thread break. If the thread tension suddenly subsides, the tension spring 35 pulls the lever arm 33 upwards in the direction of arrow b, the monitor needle 32 being pivoted in the direction of arrow c.
  • the activated switching device 37 switches off the winding machine and simultaneously activates the control rod 24, which is moved in the direction of arrow d with the aid of a drive device, not shown.
  • the guide link 25 releases the pressure pin 6, which is moved under the tension of the pressure spring 4 in the direction of arrow e.
  • the clamping jaw 5 is pressed against the clamping rib 8, wherein the thread is prevented from running on and is kept taut.
  • FIG. 5 shows the device again with the jaw 5 closed or with the guard needle 32 lowered.
  • the different setting of the two setting levers can be read from the scale on the cover plate 26. Of course, depending on the individual case, only one of the two settings can be changed.

Description

Die Erfindung betrifft eine Vorrichtung zur Ueberwachung des Fadenlaufs an einem Spulengatter, insbesondere an einem Zettelgatter gemäss dem Oberbegriff von Anspruch 1. Derartige Vorrichtungen haben die Aufgabe, den vom Spulengatter abgezogenen Fäden einerseits eine bestimmte Fadenspannung zu vermitteln, anderseits aber auch ein Nachlassen der Fadenspannung, z.B. bei Fadenbruch zu ermitteln und bei dem dabei ausgelösten Maschinenstillstand die Fäden festzuklemmen, um ein Nachlaufen zu verhindern. Vergleichbare Vorrichtungen wurden insbesondere bei V-förmigen Zettelgattern eingesetzt, bei denen die Umlenkung der Fäden in Richtung Wickelvorrichtung unmittelbar an der Wächternadel erfolgt.The invention relates to a device for monitoring the thread travel on a bobbin creel, in particular on a slip creel according to the preamble of claim 1. Such devices have the task of imparting a certain thread tension to the threads drawn from the bobbin creel, but also reducing the thread tension. e.g. in the event of a thread breakage and to clamp the threads when the machine comes to a standstill in order to prevent overrun. Comparable devices were used in particular in the case of V-shaped slip gates, in which the deflection of the threads in the direction of the winding device takes place directly on the guard needle.

Gattungsmässig vergleichbare Vorrichtungen sind beispielsweise in der US-A-4,598,184 oder in der EP-A-311 781 beschrieben. Bis anhin wurden dabei die Klemmvorrichtungen mit stets gleichbleibender Druckkraft beaufschlagt, wobei jede Fadenqualität mit der gleiche Klemmkraft festgeklemmt wurde. Bei der EP-A-311 781 ist zwar die Federvorrichtung mit einer zusätzlichen Steuerfeder versehen, die eine Entlastung der Klemmbacke erlaubt. Allerdings ist eine derartige Entlastung nur innerhalb einer ganzen vertikalen Reihe von Klemmvorrichtungen möglich, da die Entlastung über die vertikale Steuerstange zum Oeffnen und Schliessen der Klemmbacken erfolgt. Eine individuelle Anpassung der Federkraft an jeder einzelnen Klemmvorrichtung ist dagegen nicht möglich. In vielen Fällen ist es jedoch wünschenswert, dass die Klemmkraft der Fadenqualität angepasst werden kann und zwar unabhängig von der Lage der jeweiligen Spulstelle im Spulengatter. Bisher war es üblich, verschieden starke Federn in die Klemmvorrichtungen einzubauen, wozu aber eine aufwendige Demontage erforderlich war.Devices of comparable generic type are described, for example, in US Pat. No. 4,598,184 or in EP-A-311 781. Up to now, the clamping devices have always been subjected to constant pressure, with each thread quality being clamped with the same clamping force. In EP-A-311 781, the spring device is provided with an additional control spring, which allows the clamping jaw to be relieved. However, such a relief is only possible within a whole vertical row of clamping devices, since the relief takes place via the vertical control rod for opening and closing the clamping jaws. However, an individual adjustment of the spring force on each individual clamping device is not possible. In many cases, however, it is desirable that the clamping force can be adapted to the thread quality, regardless of the position of the respective winding point in the creel. So far, it was common to install springs of different strengths in the clamping devices, but this required a complex disassembly.

Es ist daher eine Aufgabe der Erfindung, eine Vorrichtung der eingangs genannten Art zu schaffen, bei der die Klemmkraft der Klemmvorrichtung an jeder einzelnen Spulstelle individuell auf einfache Weise eingestellt werden kann. Diese Aufgabe wird erfindungsgemäss mit einer Vorrichtung gelöst, welche die Merkmale im Anspruch 1 aufweist. Die jeder Klemmvorrichtung zugeordnete Einstellvorrichtung erlaubt es auf einfachste Weise, die Federkraft an der Federvorrichtung den individuellen Gegebenheiten anzupassen.It is therefore an object of the invention to provide a device of the type mentioned in the introduction, in which the clamping force of the clamping device can be individually adjusted in a simple manner at each individual winding unit. This object is achieved according to the invention with a device which has the features in claim 1. The adjusting device assigned to each clamping device allows the spring force on the spring device to be adapted to the individual circumstances in the simplest way.

Besonders Vorteilhaft ist die Federvorrichtung als Druckfeder ausgebildet, die auf einem mit der Klemmbacke verbundenen Druckstift gelagert ist, wobei der Druckstift an seinem Ende mit einer Führungskulisse zusammenwirkt und durch diese gegen die Federkraft in Oeffnungsstellung pressbar ist und wobei das Widerlager der Druckfeder auf dem Druckstift verstellbar ausgebildet ist. Aus den eingangs erwähnten Patentpublikationen ist es zwar bereits bekannt, die Klemmplatte über einen Druckstift zu betätigen. Das verschiebbare Widerlager erlaubt jedoch auf einfachste Weise ein Spannen oder ein Entspannen der Druckfeder. Das Widerlager kann besonders vorteilhaft mit einem linear verschiebbaren Schieber verstellt werden, der eine Führungskulisse aufweist.The spring device is particularly advantageously designed as a compression spring which is mounted on a pressure pin connected to the clamping jaw, the pressure pin cooperating at its end with a guide link and being able to be pressed against the spring force in the open position and the abutment of the compression spring being adjustable on the pressure pin is trained. From the patent publications mentioned at the outset, it is already known to actuate the clamping plate using a pressure pin. However, the displaceable abutment allows the compression spring to be tensioned or relaxed in the simplest way. The abutment can be adjusted particularly advantageously with a linearly displaceable slide which has a guide link.

Die Einstellvorrichtung könnte praktisch nur aus diesem Schieber bestehen, der z.B. manuell eingestellt werden kann. Eine besonders vorteilhafte Betätigung des Schiebers kann aber auch mit einem schwenkbar gelagerten Einstellhebel erreicht werden, der an seinem freien Ende mit einem Schubgelenk in den Schieber eingreift. Der Einstellhebel kann dabei z.B. mit einem Schraubenzieher gedreht werden. Um eine unbeabsichtigte Veränderung der Position des Einstellhebels zu verhindern, kann dieser durch eine Abdeckplatte fixierbar sein, welche gleichzeitig auch die Klemmvorrichtung und die Einstellvorrichtung verdeckt und damit vor Staub und Fasern schützt. Die Abdeckplatte kann dabei eine Oeffnung mit einer Markierung aufweisen, an der die eingestellte Position des Einstellhebels ablesbar ist. Die Sicherung der einmal gewählten Einstellung durch die Abdeckplatte hat den Vorteil, dass diese Einstellung nicht durch unsachgemässe Manipulationen verloren geht. Zum Verstellen der Position müssten die Abdeckplatten gelöst werden, was nur durch autorisiertes Personal erfolgen darf. Eine besonders grosse Flexibilität der Vorrichtung ergibt sich, wenn auch die Wächternadel des Fadenwächters mit einer Zugfeder vorgespannt ist, deren gestellseitige Lagerstelle zum Verändern der Zugkraft verstellbar ist. So kann auch die Fadenspannung bzw. die Reaktionszeit der Wächternadel innerhalb bestimmter Grenzen den abgezogenen Fäden angepasst werden. Die Zugfeder kann zu diesem Zweck ebenfalls an einem schwenkbar gelagerten Einstellhebel eingehängt sein.The adjusting device could practically only consist of this slide, which e.g. can be set manually. A particularly advantageous actuation of the slide can also be achieved with a pivotably mounted adjusting lever which engages with a sliding joint in the slide at its free end. The setting lever can e.g. be turned with a screwdriver. In order to prevent an unintentional change in the position of the adjusting lever, this can be fixed by a cover plate, which at the same time also covers the clamping device and the adjusting device and thus protects against dust and fibers. The cover plate can have an opening with a marking on which the set position of the adjusting lever can be read. Securing the setting once selected with the cover plate has the advantage that this setting is not lost due to improper manipulation. To adjust the position, the cover plates would have to be loosened, which may only be done by authorized personnel. A particularly great flexibility of the device is obtained if the guard needle of the thread guard is also pretensioned with a tension spring, the bearing location of which on the frame is adjustable for changing the tensile force. The thread tension or the reaction time of the guard needle can also be adapted to the drawn threads within certain limits. For this purpose, the tension spring can also be attached to a pivoted adjustment lever.

Klemmvorrichtung und Fadenwächter müssen innerhalb eines Spulengatters nicht zwingend beieinander angeordnet sein. Es ist jedoch vorteilhaft, wenn die Klemmvorrichtung und der Fadenwächter eine Baueinheit mit einer gemeinsamen Grundplatte bilden und wenn der Einstellhebel für die Klemmvorrichtung und der Einstellhebel für den Fadenwächter mit einer gemeinsamen Abdeckplatte fixierbar sind. So kann auch die Einstellung für die auf die Wächternadel einwirkende Federkraft auf die gleiche Weise abgesichert werden, wobei über eine entsprechende Oeffnung in der Abdeckplatte und über eine Markierung ebenfalls ein Ablesen der Einstellung von aussen möglich ist.Clamping device and thread monitor do not necessarily have to be arranged together within a creel. However, it is advantageous if the clamping device and the thread monitor form a structural unit with a common base plate and if the adjusting lever for the clamping device and the adjusting lever for the thread monitor can be fixed with a common cover plate. In this way, the setting for the spring force acting on the guard needle can also be secured in the same way, with a corresponding opening in the cover plate and a marking also allowing the setting to be read from the outside.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird nachstehend genauer beschrieben. Es zeigen:

  • Figur 1 eine teilweise geschnittene Ansicht einer Vorrichtung mit entfernter Abdeckplatte,
  • Figur 2 eine Draufsicht auf die Vorrichtung gemäss Figur 1,
  • Figur 3 die Vorrichtung gemäss Figur 1 mit aufgeschraubter Abdeckplatte und eingestetzter Wächternadel,
  • Figur 4 die Vorrichtung gemäss Figur 1 mit geschlossener Klemmbacke und
  • Figur 5 die Vorrichtung gemäss Figur 1 mit geschlossener Klemmbacke, jedoch mit geänderter Federeinstellung für die Klemmvorrichtung und für den Fadenwächter.
An embodiment of the invention is shown in the drawings and will be described below described in more detail. Show it:
  • FIG. 1 shows a partially sectioned view of a device with the cover plate removed,
  • FIG. 2 shows a top view of the device according to FIG. 1,
  • 3 shows the device according to FIG. 1 with the cover plate screwed on and the guard needle inserted, FIG.
  • Figure 4 shows the device of Figure 1 with the jaw closed and
  • 5 shows the device according to FIG. 1 with the clamping jaw closed, but with a modified spring setting for the clamping device and for the thread monitor.

Wie insbesondere aus den Figuren 1 und 2 ersichtlich ist, besteht die Vorrichtung aus einer Einheit, bei der die Klemmvorrichtung 1 und der Fadenwächter 2 auf einer gemeinsamen Grundplatte 7 angeordnet ist. Diese Grundplatte ist am vertikalen U-Profil 30 fixiert, das vor jeder vertikalen Reihe von Spulstellen am Gatter angeordnet ist. Der Faden 3 läuft von der nicht dargestellten Fadenspule kommend zwischen einer beweglichen Klemmbacke 5 und einer starren Klemmrippe 8 hindurch und wird an der Wächternadel 32 umgelenkt, wo er in Pfeilrichtung a gegen die Wickelvorrichtung läuft.As can be seen in particular from FIGS. 1 and 2, the device consists of a unit in which the clamping device 1 and the thread monitor 2 are arranged on a common base plate 7. This base plate is fixed to the vertical U-profile 30, which is arranged in front of each vertical row of winding units on the gate. The thread 3 runs from the thread spool, not shown, between a movable clamping jaw 5 and a rigid clamping rib 8 and is deflected at the guard needle 32, where it runs in the direction of arrow a against the winding device.

Die Klemmbacke 5 weist eine Nabe 11 auf, in der mit Hilfe eines Sichterungsstifts 12 ein Druckstift 6 befestigt ist. Dieser Druckstift hat an seinem freien Ende einen im Durchmesser erweiterten abgerundeten Kopf 9, der mit einer Führungskulisse 25 an einer vertikalen Steuerstange 24 zusammenwirkt. Der Druckstift 6 ist einerseits in einer Bohrung 13 in der Klemmrippe 8 und anderseits in einer Bohrung 15 in der Grundplatte 7 derart geführt, dass sich die Klemmbacke 5 planparallel zur Klemmrippe 8 verschieben lässt. Die Klemmbacke 5 wird dabei mit Hilfe einer Druckfeder 4 gegen die Klemmrippe 8 gepresst. Diese Druckfeder stützt sich am erweiterten Kopf 9 ab und liegt auf einer als Widerlager dienenden U-Scheibe 10.The clamping jaw 5 has a hub 11, in which a pressure pin 6 is fastened with the aid of a securing pin 12. At its free end, this pressure pin has a rounded head 9 which is enlarged in diameter and which cooperates with a guide link 25 on a vertical control rod 24. The pressure pin 6 is guided on the one hand in a bore 13 in the clamping rib 8 and on the other hand in a bore 15 in the base plate 7 such that the clamping jaw 5 can be displaced plane-parallel to the clamping rib 8. The clamping jaw 5 is pressed against the clamping rib 8 with the aid of a compression spring 4. This compression spring is supported on the enlarged head 9 and lies on a washer 10 serving as an abutment.

In der dargestellten Position steht die Führungskulisse 25 in Betriebsstellung, so dass die Klemmbacke 5 gegen die Kraft der Druckfeder 4 von der Klemmrippe 8 weggepresst wird.In the position shown, the guide link 25 is in the operating position, so that the clamping jaw 5 is pressed away from the clamping rib 8 against the force of the compression spring 4.

Hinter der Klemmrippe 8 in einer schachtartigen Vertiefung der Grundplatte ist ein Schieber 17 angeordnet, der linear und etwa im rechten Winkel zum Druckstift 6 verschiebbar ist. Der Schieber hat einen Schlitz 18, der es erlaubt, den Druckstift 6 in jeder Relativlage zu übergreifen. Während der Schieber auf der Seite der Klemmrippe 8 plan ausgebildet ist, hat er auf der entgegengesetzten Seite eine Führungskulisse 19, auf der die U-Scheibe 10 gleiten kann. In seinem oberen Bereich ist der Schieber mit einer horizontalen Nut 20 versehen. Der Schieber wird mittels eines Einstellhebels 21 betätigt. Dieser ist drehbeweglich an der Grundplatte 7 gelagert und weist einen Schlitz 23 auf, in den ein Schraubenzieher eingesetzt werden kann. Ein Nocken 22 am freien Ende des Einstellhebels bildet zusammen mit der Nut 20 im Schieber 17 ein Schubgelenk, mit dessen Hilfe die Drehbewegung in eine Schubbewegung umgewandelt wird.Behind the clamping rib 8 in a shaft-like depression of the base plate, a slide 17 is arranged, which can be moved linearly and approximately at right angles to the pressure pin 6. The slide has a slot 18, which allows the pressure pin 6 to overlap in any relative position. While the slide is flat on the side of the clamping rib 8, it has on the opposite side a guide link 19 on which the washer 10 can slide. In its upper area, the slide is provided with a horizontal groove 20. The slide is actuated by means of an adjusting lever 21. This is rotatably mounted on the base plate 7 and has a slot 23 into which a screwdriver can be inserted. A cam 22 at the free end of the adjusting lever forms, together with the groove 20 in the slide 17, a thrust joint, with the aid of which the rotary movement is converted into a thrust movement.

Der Fadenwächter 2 weist die bereits kurz erwähnte Wächternadel 32 auf, die in Figur 1 jedoch nur angedeutet ist. Diese Wächternadel hat ein hakenförmiges Ende und ist an einem Gelenk 34 schwenkbar gelagert. Die Wächternadel ist als Doppelhebel ausgebildet, wobei am Hebelarm 33 eine Zugfeder 35 angehängt ist, welche der Wächternadel ein bestimmtes Drehmoment vermittelt. Das gegenüberliegende Ende der Zugfeder 35 ist an einem drehbar gelagerten Einstellhebel 36 eingehängt, der zum Drehen ebenfalls mit einem Schlitz 39 versehen ist. Das Ende des Hebelarms 33 wirkt ausserdem mit einer Schaltvorrichtung 37 zusammen, die bei einer bestimmten Hebelstellung einen Schaltvorgang zum Stillsetzen der Maschine und zum Aktivieren der Klemmvorrichtung 1 auslöst.The thread monitor 2 has the monitor needle 32 already briefly mentioned, which is, however, only indicated in FIG. 1. This guard needle has a hook-shaped end and is pivotally mounted on a joint 34. The watchdog needle is designed as a double lever, with a tension spring 35 being attached to the lever arm 33, which gives the watchdog needle a certain torque. The opposite end of the tension spring 35 is suspended on a rotatably mounted adjusting lever 36, which is also provided with a slot 39 for rotation. The end of the lever arm 33 also interacts with a switching device 37, which triggers a switching operation for stopping the machine and activating the clamping device 1 at a specific lever position.

Die Grundplatte 7 ist an drei verschiedenen Stellen mit Gewindebohrungen 16 versehen. Diese Bohrungen dienen zum Befestigen einer Abdeckplatte 26, wie aus Figur 3 ersichtlich ist. Diese Abdeckplatte kann mit Hilfe von Schrauben 27 gegen die Grundplatte 7 geschraubt werden. Die beiden Einstellhebel 21 und 36 sind dabei derart in der Ebene der Grundplatte angeordnet, dass sie sich bei aufgeschraubter Abdeckplatte nicht mehr verschwenken können. In der Abdeckplatte sind jedoch Oeffnungen 28 und 40 angeordnet, durch welche die Stellung der Einstellhebel betrachtet werden kann. Je eine Markierung 29 und 38 auf der Abdeckplatte erlaubt zudem ein Ablesen der jeweils gewählten Einstellung.The base plate 7 is provided with threaded holes 16 at three different locations. These bores are used to fasten a cover plate 26, as can be seen from FIG. 3. This cover plate can be screwed against the base plate 7 using screws 27. The two adjusting levers 21 and 36 are arranged in the plane of the base plate in such a way that they can no longer pivot when the cover plate is screwed on. However, openings 28 and 40 are arranged in the cover plate through which the position of the adjusting levers can be viewed. Markings 29 and 38 on the cover plate also allow the selected setting to be read.

Die Abdeckplatte 26 ist seitlich mit einem Flügel 43 versehen, der über das U-Profil 30 hinausragt. In diesem Flügel ist ein hakenförmiger Schlitz 31 angeordnet, durch den der Faden eingeführt werden kann. Entlang dieses Schlitzes verläuft eine obere Rippe 41, die zugleich als Auffanglager für die Wächternadel 32 in gesenkter Position bei Fadenbruch dient. Diese Position ist in Figur 3 durch strichpunktierte Linien angedeutet. Eine untere Rippe 42 an der Abdeckplatte dient als rückwärtige Begrenzung für die Wächternadel 32 bei normaler Fadenspannung in der Betriebsstellung. Die Wächternadel kann auf einfachste Weise durch einen hier nicht näher dargestellten Bajonettverschluss aus dem Gelenk 34 ausgehängt werden. Zum Verändern der Einstellung bei den Einstellhebeln 21 und 36 genügt es, wenn die Schrauben 27 soweit gelöst werden, bis die Einstellhebel durch die Oeffnungen 28 und 40 an den Schlitzen 23 und 39 in die gewünschte Position gedreht werden können.The cover plate 26 is laterally provided with a wing 43 which projects beyond the U-profile 30. A hook-shaped slot 31 is arranged in this wing, through which the thread can be inserted. An upper rib 41 runs along this slot, which also serves as a catch bearing for the guard needle 32 in a lowered position in the event of a thread break. This position is indicated in FIG. 3 by dash-dotted lines. A lower rib 42 on the cover plate serves as a rear boundary for the guard needle 32 with normal thread tension in the operating position. The watchdog needle can be unhooked from the joint 34 in the simplest way by means of a bayonet lock, which is not shown here. To change the setting on the adjusting levers 21 and 36, it is sufficient if the screws 27 so far be loosened until the setting levers can be rotated into the desired position through the openings 28 and 40 at the slots 23 and 39.

Figur 4 zeigt nochmals die Vorrichtung gemäss Figur 1 mit der gleichen Grundeinstellung der Federvorrichtung, jedoch mit geschlossener Klemmbacke. Diese Position wird bei einem Maschinenstillstand erreicht, der z.B. durch einen Fadenbruch ausgelöst werden kann. Lässt die Fadenspannung plötzlich nach, so zieht die Zugfeder 35 den Hebelarm 33 in Pfeilrichtung b nach oben, wobei die Wächternadel 32 in Pfeilrichtung c verschwenkt wird. Die dabei aktivierte Schaltvorrichtung 37 schaltet die Wickelmaschine ab und aktiviert gleichzeitig die Steuerstange 24, die mit Hilfe einer nicht näher dargestellten Antriebsvorrichtung in Pfeilrichtung d verschoben wird. Dabei gibt die Führungskulisse 25 den Druckstift 6 frei, der unter der Spannung der Druckfeder 4 in Pfeilrichtung e bewegt wird. Die Klemmbacke 5 wird gegen die Klemmrippe 8 gepresst, wobei ein Nachlaufen des Fadens vermieden wird und dieser gespannt gehalten wird.Figure 4 shows again the device according to Figure 1 with the same basic setting of the spring device, but with the jaw closed. This position is reached when the machine is at a standstill, e.g. can be triggered by a thread break. If the thread tension suddenly subsides, the tension spring 35 pulls the lever arm 33 upwards in the direction of arrow b, the monitor needle 32 being pivoted in the direction of arrow c. The activated switching device 37 switches off the winding machine and simultaneously activates the control rod 24, which is moved in the direction of arrow d with the aid of a drive device, not shown. The guide link 25 releases the pressure pin 6, which is moved under the tension of the pressure spring 4 in the direction of arrow e. The clamping jaw 5 is pressed against the clamping rib 8, wherein the thread is prevented from running on and is kept taut.

Soll nun die Klemmbacke 5 mit einer grösseren Klemmkraft beaufschlagt werden und soll die Wächternadel 32 den Faden stärker spannen bzw. bei Fadenbruch schneller ausschlagen, so werden die Veränderungen gemäss Figur 5 vorgenommen. Der Einstellhebel 21 wird auf die bereits beschriebene Weise in Pfeilrichtung f gedreht, wobei sich der Schieber 17 in Pfeilrichtung g nach unten verschiebt. Dabei wird durch die Führungskulisse 19 die U-Scheibe 10 gegen den Kopf 9 gepresst, die Druckfeder 4 also dadurch mehr gespannt.If a greater clamping force is now to be applied to the clamping jaw 5 and the guard needle 32 is to tension the thread more strongly or deflect more quickly if the thread breaks, the changes according to FIG. 5 are carried out. The adjusting lever 21 is rotated in the direction of the arrow f in the manner already described, the slider 17 moving downward in the direction of the arrow g. The U-washer 10 is pressed against the head 9 by the guide link 19, so the compression spring 4 is thus tensioned more.

Auf die gleiche Weise wird durch Drehen des Einstellhebels 36 in Pfeilrichtung h die Zugfeder 35 mehr gespannt und damit die Wächternadel 32 mit einer grösseren Federkraft beaufschlagt. Figur 5 zeigt die Vorrichtung wiederum bei geschlossener Klemmbacke 5 bzw. bei abgesenkter Wächternadel 32. Die unterschiedliche Einstellung der beidern Einstellhebel ist an der Skala auf der Abdeckplatte 26 abzulesen. Selbstverständlich kann je nach Einzelfall auch nur eine der beiden Einstellungen verändert werden.In the same way, by turning the adjusting lever 36 in the direction of arrow h, the tension spring 35 is tensioned more and thus the watchdog needle 32 is subjected to a greater spring force. FIG. 5 shows the device again with the jaw 5 closed or with the guard needle 32 lowered. The different setting of the two setting levers can be read from the scale on the cover plate 26. Of course, depending on the individual case, only one of the two settings can be changed.

Claims (10)

1. Device for monitoring the thread run on a bobbin creel, in particular a warping creel, with which in each case a clamping device (1), with a spring loaded clamping pad for firmly clamping the thread (3) when the machine is at rest, is allocated to the bobbin positions which are arranged in rows, as well as a thread monitor (2) with a spring loaded monitor needle for creating a thread tension and for activating the clamping device when the thread breaks, whereby each clamping device (1) possesses a spring device (4), characterized in that the spring force of the spring device is able to be adjusted with an adjustment device which is allocated to each clamping device (17, 21).
2. Device according to claim 1, characterized in that the spring device is formed as a compression spring (4) which is mounted on a pressure peg (6) connected to the clamping pad (5), the pressure peg being coordinated on its end (9) with a guide element (25) and by this means being able to be pressed against the force of the spring into the open position and the compression spring (4) being provided with a counter bearing (10) which is formed to be adjustable on the pressure peg (6).
3. Device according to claim 2, characterized in that the counter bearing (10) of the compression spring (4) is able to be adjusted with a linearly displaceable slider (17) which possesses a guide element (19) in order to alter the force of the compression spring (4).
4. Device according to claim 3, characterized in that the slider (17) is able to be displaced with an adjustment lever (21) which is mounted to be able to pivot and which engages in the slider with a prismatic joint (20, 22) at its free end.
5. Device according to claim 4, characterized in that the position of the adjustment lever (21) is able to be fixed by means of a cover plate (26) which covers the clamping device and the adjustment device.
6. Device according to claim 5, characterized in that the cover plate (26) possesses an opening (28) with markings, on which the adjusted position of the adjustment lever (21) is able to be read off.
7. Device according to one of the claims 3 to 6, characterized in that the slider (17) is able to be displaced approximately at right angles to the pressure peg (6) and possesses a slot (18) through which the pressure peg passes.
8. Device according to one of the claims 1 to 7, characterized in that the monitor needle (32) of the thread monitor (2) is pretensioned with a tension spring (35) whose mounting position on the frame side is able to be adjusted in order to alter the tension force.
9. Device according to claim 8, characterized in that the tension spring (35) is attached to an adjustment lever (36) which is mounted to be able to pivot.
10. Device according to claim 8 or 9, characterized in that the clamping device (1) and the thread monitor (2) form a component with a common base plate (7) and that the adjustment lever (21) for the clamping device and the adjustment lever (36) for the thread monitor are able to be fixed by means of a common cover plate (26).
EP92810268A 1991-04-24 1992-04-08 Device for monitoring the run of the thread on a creel Expired - Lifetime EP0511160B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH122191 1991-04-24
CH1221/91A CH683193A5 (en) 1991-04-24 1991-04-24 Device for monitoring the thread run on a bobbin creel.
CH1221/91 1991-04-24

Publications (3)

Publication Number Publication Date
EP0511160A1 EP0511160A1 (en) 1992-10-28
EP0511160B1 true EP0511160B1 (en) 1995-08-30
EP0511160B2 EP0511160B2 (en) 1999-06-23

Family

ID=4205329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92810268A Expired - Lifetime EP0511160B2 (en) 1991-04-24 1992-04-08 Device for monitoring the run of the thread on a creel

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US (1) US5312062A (en)
EP (1) EP0511160B2 (en)
CH (1) CH683193A5 (en)
DE (1) DE59203421D1 (en)
ES (1) ES2075670T5 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9306680U1 (en) † 1993-05-04 1993-07-01 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal, De
DE29608167U1 (en) * 1996-05-06 1997-09-18 Sucker Mueller Hacoba Gmbh Central adjustment device for thread clamping of creel
CN116946808B (en) * 2023-09-21 2023-12-08 江恒(福建)体育用品集团有限公司 Thread feeding mechanism for textile processing

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3896640A (en) * 1973-04-09 1975-07-29 Lebocey Industrie Device for the detection of excessive thread tension and thread breakage
CH555905A (en) * 1973-01-17 1974-11-15 Benninger Ag Maschf THREAD GUIDE AND MONITORING DEVICE ON A SPOOL GATE.
CH636653A5 (en) * 1979-05-31 1983-06-15 Benninger Ag Maschf THREAD TENSIONING DEVICE ON A REEL.
CH663401A5 (en) * 1984-05-03 1987-12-15 Benninger Ag Maschf THREAD TENSIONING DEVICE ON A REEL.
DE3436714A1 (en) * 1984-10-06 1986-04-17 Hacoba Textilmaschinen Gmbh & Co Kg, 5600 Wuppertal SPOOL GATE FOR PAPER OR SHARPENING MACHINE AND METHOD FOR CONTROLLING THE THREAD CLAMP OF A SPOOL GATE
US4598184A (en) * 1985-04-16 1986-07-01 West Point Foundry And Machine Co. Thread tension monitoring and clamping apparatus
US4646989A (en) * 1985-05-22 1987-03-03 Marlin Van Wilson Tension control and yarn handling system for "V" type creels
DE3734518A1 (en) * 1987-10-13 1989-04-27 Hacoba Textilmaschinen DEVICE FOR START-UP CONTROL OF COILS

Also Published As

Publication number Publication date
CH683193A5 (en) 1994-01-31
ES2075670T5 (en) 1999-09-16
DE59203421D1 (en) 1995-10-05
EP0511160B2 (en) 1999-06-23
ES2075670T3 (en) 1995-10-01
EP0511160A1 (en) 1992-10-28
US5312062A (en) 1994-05-17

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