EP2179956A2 - Spooling device for a textile machine for creating cross-wound spools and method for operating the same - Google Patents

Spooling device for a textile machine for creating cross-wound spools and method for operating the same Download PDF

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Publication number
EP2179956A2
EP2179956A2 EP09012488A EP09012488A EP2179956A2 EP 2179956 A2 EP2179956 A2 EP 2179956A2 EP 09012488 A EP09012488 A EP 09012488A EP 09012488 A EP09012488 A EP 09012488A EP 2179956 A2 EP2179956 A2 EP 2179956A2
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EP
European Patent Office
Prior art keywords
coil
damping
coil frame
current
cross
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09012488A
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German (de)
French (fr)
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EP2179956A3 (en
EP2179956B1 (en
Inventor
Robert Geisler
Alexander Junkler
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Saurer Spinning Solutions GmbH and Co KG
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Oerlikon Textile GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • B65H54/52—Drive contact pressure control, e.g. pressing arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/72—Framework; Casings; Coverings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/10—Actuating means linear
    • B65H2555/13—Actuating means linear magnetic, e.g. induction motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2601/00—Problem to be solved or advantage achieved
    • B65H2601/50—Diminishing, minimizing or reducing
    • B65H2601/52—Diminishing, minimizing or reducing entities relating to handling machine
    • B65H2601/524—Vibration
    • 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 winding device for a cheese-producing textile machine with a pivotally mounted coil frame for holding a cross-wound bobbin and with a damping device for damping coil frame vibrations, wherein the damping is effected by the magnetic force between an electric coil and a ferromagnetic component.
  • the invention further relates to a method for operating the winding device.
  • the known winding devices of winding or spinning machines usually have a device for damping the frame vibrations.
  • the Swiss patent CH-PS 374 003 describes, for example, a damping device which has a current-supplyable electromagnet instead of a hydraulic damping cylinder which acts on an armature plate.
  • the anchor plate stands in turn via a rod with the coil frame to be damped in connection.
  • a force component is generated by means of an electromagnet, which is known to include a Bestrombare coil, which presses the connected to the coil frame ferromagnetic armature plate to a stationary abutment.
  • the damping behavior of this damping device thus results from the mechanical friction between the armature plate and abutment.
  • the CH-PS 374 003 means may be provided to arbitrarily regulate the power supply to the electromagnet and to adjust the force of the magnetic field to the required coil attenuation.
  • the regulation of the force effect of the magnetic field for all winding units is advantageously carried out from a central location.
  • the described means do not allow individual adaptation of the bobbin frame attenuation at a winding station.
  • a damping device which has a movable, electrically conductive component which is at least indirectly connected to the coil frame and arranged such that the component without contact intersects the magnetic field of a magnet system arranged stationary.
  • the effect of the damping device is based on the formation of eddy currents in the electrically conductive component.
  • the movement or the oscillation of the coil frame is transmitted to the electrically conductive component.
  • the magnetic field penetrating the component changes, which induces a voltage in the component.
  • the resulting so-called eddy currents counteract according to the Lenz rule the cause of their formation, so that the vibrations are damped. Due to the principle, the damping effect adapts to the occurring vibrations. Furthermore, due to the non-contact design in conjunction with the damping no friction forces, whereby the disadvantages described above are avoided.
  • the present invention seeks to provide a reliable damping for the creel of high-performance textile machines, which is characterized by short reaction times and also allows the damping of small vibrations.
  • the current through the electric coil is continuously adjusted in response to the coil frame oscillation.
  • the coil frame vibrations are measured for this purpose.
  • Even small vibrations can be reliably damped.
  • By a suitable control of the damping current short reaction times can be realized.
  • the damping is adjusted individually on each winding device of the cheese-producing textile machine. In addition, no further damping devices are required.
  • the coil is de-energized as long as a predetermined value representing the coil frame oscillation is not exceeded. This makes it possible to define in which vibrations a damping is required and which vibrations are still tolerable.
  • a current is impressed into the coil when the predetermined value representing the coil frame oscillation is exceeded.
  • the current is switched off again when a second predetermined value representing the coil frame oscillation is undershot.
  • a hysteresis is provided, wherein the second value at which the current is switched off again to the hysteresis is smaller than the value at which the current is turned on.
  • a constant current can always be impressed into the coil.
  • a winding device is further proposed with a damping device having an electrical coil and a ferromagnetic component, wherein the coil frame, a sensor for measuring the coil frame vibrations is arranged and the sensor is connected to a control unit and the control unit is adapted to To energize coil depending on the sensor signal.
  • a sensor for measuring the coil frame vibrations is arranged and the sensor is connected to a control unit and the control unit is adapted to To energize coil depending on the sensor signal.
  • an accelerometer sensor can be used.
  • control unit has a two-position controller whose input signal is formed by the sensor signal, wherein the current through the coil by means of the two-point controller is switched on and off.
  • the two-position controller can be designed, for example, as a Schmitt trigger.
  • the two-point controller can also be realized digitally.
  • a linear regulator can be used instead of the discontinuous two-step controller.
  • the ferromagnetic component of the damping device is designed as a rod.
  • the electric coil is advantageously penetrated by the rod.
  • the rod may for example be designed as a lifting rod and connected to the coil frame.
  • the lifting rod then follows the movement of the coil frame and the electric coil is fixedly mounted on the winding device.
  • the electric coil is mounted on the coil frame and the rod is fixed to the winding device.
  • the rod and the electric coil move relative to each other, a touch of the two components does not occur.
  • the coil is energized, a holding force is exerted on the rod in the direction of penetration.
  • the rod is endeavored by the action of the magnetic field to center itself within the electrical coil. Thus, the freedom of touch is still supported.
  • the Fig. 1 shows a winding device 1 according to the invention of a cheese-producing textile machine.
  • a cross-wound bobbin 3 is rotatably mounted in a creel 2 pivotally mounted about the axis 5 .
  • On the cheese 3 is a thread wound, which is withdrawn from a spinning device or from a delivery bobbin.
  • the cross-wound bobbin 3 is driven by the drum 4 by means of frictional engagement.
  • a loading means 6, here a spring is provided in order to ensure a sufficient contact pressure of the cross-wound bobbin 3 on the drum 4.
  • the spring 6 exerts a torque on the Spulerahmen 2, which presses the cheese 3 on the output drum 4.
  • the creel pivots about the axis 5 and the force exerted on the creel 2 by the spring 6 torque reverses its direction and pushes the cheese 3 away from the drive drum 4. In this way, the increasing weight of the cheese is compensated.
  • the winding device 1 has a damping device, which includes a coil 7, a lifting rod 8 made of iron and an acceleration sensor 11 and a control unit 10.
  • the lifting rod 8 penetrates in its longitudinal direction, the cross-sectional area of the coil 7.
  • the coil 7 is fixed outside of the coil frame 2 to the winding device 3.
  • the lifting rod 8, however, is connected via the hinge 9 with the coil frame 2.
  • the accelerometer 11 is attached to the creel 2 and thus measures the creel vibrations.
  • the acceleration sensor 11 transmits the measured acceleration values a to the control unit 10 via the control line 12. In dependence on these measurement signals, the control unit impresses a current i via the lines 13 and 14 into the coil 7.
  • the Fig. 2 shows on the one hand a profile of the acceleration detected by the acceleration values a 11 over the time t and on the other analog time course of the current through the coil 7 are i Prior to time t 1 Acceleration values below a permissible value and the coil is de-energized. The damping device exerts no force. At time t 1 , the acceleration reaches a value a . This is the turn-on threshold for the controller of the control unit 10, which is formed in the embodiment as a two-step controller. Thus, the controller switches the current i 0 to the coil 7 at time t 1. The current builds up a magnetic field around the conductors of the coil. Thus, a holding force is exerted on the lifting rod, which counteracts the coil frame oscillation.
  • the controller has a hysteresis, so that a shutdown of impressed in the coil 7 current i 0 takes place only after falling below an acceleration value a out , which is reached at time t 2 .
  • the acceleration value a out is smaller than the switch-on value a on .

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The method involves producing a cross-wound bobbin (3) with a pivoting coil form (2) by a textile machine. A damping device is provided for damping coil form vibrations, where damping is provided by a magnetic action force between an electrical coil (7) and a ferromagnetic component (8). The coil form vibration is measured, so that the current running through the electric coil, is adjusted depending on the coil form vibration. An independent claim is included for a coil winder for a textile machine producing cross-wound bobbin with a coil form.

Description

Die Erfindung betrifft eine Spulvorrichtung für eine Kreuzspulen herstellende Textilmaschine mit einem schwenkbar gelagerten Spulenrahmen zum Halten einer Kreuzspule sowie mit einer Dämpfungseinrichtung zum Dämpfen von Spulenrahmenschwingungen, wobei die Dämpfung durch die magnetische Kraftwirkung zwischen einer elektrischen Spule und einem ferromagnetischen Bauteil bewirkt wird. Die Erfindung betrifft weiterhin ein Verfahren zum Betreiben der Spulvorrichtung.The invention relates to a winding device for a cheese-producing textile machine with a pivotally mounted coil frame for holding a cross-wound bobbin and with a damping device for damping coil frame vibrations, wherein the damping is effected by the magnetic force between an electric coil and a ferromagnetic component. The invention further relates to a method for operating the winding device.

Bei Kreuzspulen herstellenden Textilmaschinen, beispielsweise Kreuzspulautomaten, deren Spulvorrichtungen mit Spulgeschwindigkeiten von bis zu 2.000 m/min arbeiten, besteht stets die Gefahr, dass es beim Spulen der Kreuzspulen zu starken Schwingungen der Spulenrahmen kommt. Auch bei Spinnmaschinen, die ebenfalls zu den Kreuzspulen herstellenden Textilmaschinen zählen, ist das Problem der Spulenrahmenschwingung bekannt. Insbesondere zu Beginn einer Spulenreise sowie bei der Herstellung sehr harter Kreuzspulen besteht dabei die Gefahr, dass die Amplitude der Rahmenschwingung so groß wird, dass der Spulprozess entscheidend beeinträchtigt wird.
Das heißt, dass Kreuzspulen gefertigt werden, die kaum noch abspulbar und damit unbrauchbar sind.In textile machines producing cross-wound bobbins, for example automatic winder machines, whose winding devices operate at winding speeds of up to 2,000 m / min, there is always the risk that the bobbin frames will vibrate strongly during the winding of the cheeses. Also in spinning machines, which also count to the cross-wound producing textile machines, the problem of the coil frame oscillation is known. In particular, at the beginning of a coil travel and in the production of very hard cheeses there is a risk that the amplitude of the frame vibration is so great that the winding process is significantly affected.
This means that cross-wound bobbins are manufactured that are hardly reusable and thus unusable.

Aus diesem Grunde besitzen die bekannten Spulvorrichtungen von Spul- oder Spinnmaschinen in der Regel eine Vorrichtung zum Dämpfen der Rahmenschwingungen.For this reason, the known winding devices of winding or spinning machines usually have a device for damping the frame vibrations.

In der DE 195 34 333 A1 ist beispielsweise eine Spulenrahmendämpfungseinrichtung für eine Spulmaschine beschrieben, die einen linear arbeitenden, hydraulischen Dämpfungszylinder aufweist. Das als Öldämpfer ausgebildete Dämpfungselement ist dabei über einen Hebel an den Spulenrahmen angeschlossen.In the DE 195 34 333 A1 For example, a Spulenrahmendämpfungseinrichtung for a winder is described, which has a linearly operating, hydraulic damping cylinder. The designed as an oil damper damping element is connected via a lever to the coil frame.

Bei diesen bekannten Dämpfungseinrichtungen wird ein Austreten des Dämpferöles entlang der Kolbenstange durch eine Dichtung verhindert. Da diese Dichtung ständig gegen die bewegte Kolbenstange drückt und somit eine beträchtliche Haftreibung verursacht, ist stets ein recht großes Losbrechmoment zu überwinden, bevor sich der Dämpfer bewegt. Daraus resultiert eine gewisse Reaktionsträgheit und bei kleinen Schwingungen fehlt die Dämpfung nahezu völlig. Da das Losbrechmoment in beiden Richtungen auftritt, ist die Kontaktkraft zwischen der Kreuzspule und der die Kreuzspule über Reibschluß antreibenden Fadenführungstrommel durch die sogenannte Rahmenkompensation nicht eindeutig definiert und daher nicht genau einstellbar.In these known damping devices leakage of the damper oil along the piston rod is prevented by a seal. Since this seal constantly presses against the moving piston rod and thus causes considerable static friction, a fairly large breakaway torque must always be overcome before the damper moves. This results in a certain inertia and at small vibrations, the damping is almost completely absent. Since the breakaway torque occurs in both directions, the contact force between the cheese and the cross-wound spool driving frictional thread guide drum is not clearly defined by the so-called frame compensation and therefore not precisely adjustable.

Außerdem besteht bei den bekannten Öldämpfern stets die Gefahr, dass Dämpferöl austritt, was sowohl zu einer Verschmutzung des Umfeldes, als auch oft zu einer nicht sofort bemerkten Verschlechterung des Dämpfungsvermögens führt.In addition, there is always the risk that damper oil leaking in the known oil dampers, which leads to both pollution of the environment, and often to a not immediately noticed deterioration of the damping capacity.

In der Vergangenheit sind bereits verschiedenste Versuche unternommen worden, diese Öldämpfer durch andere Dämpfungseinrichtungen zu ersetzen.Various attempts have already been made in the past to replace these oil dampers with other damping devices.

Die schweizerische Patentschrift CH-PS 374 003 beschreibt beispielsweise eine Dämpfungseinrichtung, die anstelle eines hydraulischen Dämpfungszylinders einen bestrombaren Elektromagneten aufweist, der eine Ankerplatte beaufschlagt.The Swiss patent CH-PS 374 003 describes, for example, a damping device which has a current-supplyable electromagnet instead of a hydraulic damping cylinder which acts on an armature plate.

Die Ankerplatte steht dabei ihrerseits über eine Stange mit dem zu dämpfenden Spulenrahmen in Verbindung.The anchor plate stands in turn via a rod with the coil frame to be damped in connection.

Das heißt, bei dieser bekannten Dämpfungseinrichtung wird mittels eines Elektromagneten, der bekanntermaßen eine bestrombare Spule beinhaltet, eine Kraftkomponente erzeugt, die die an den Spulenrahmen angeschlossene ferromagnetische Ankerplatte an ein stationäres Widerlager preßt. Das Dämpfungsverhalten dieser Dämpfungseinrichtung ergibt sich folglich aus der mechanischen Reibung zwischen Ankerplatte und Widerlager.That is, in this known damping device, a force component is generated by means of an electromagnet, which is known to include a Bestrombare coil, which presses the connected to the coil frame ferromagnetic armature plate to a stationary abutment. The damping behavior of this damping device thus results from the mechanical friction between the armature plate and abutment.

Da auch die Dämpfungseinrichtung gemäß CH-PS 374 003 verschiedene gravierende Nachteile aufweist, konnte sich auch diese bekannte Dämpfungseinrichtung in der Praxis nie durchsetzen. Auch bei der Dämpfungseinrichtung gemäß CH-PS 374 003 war, ähnlich wie bei Öldämpfern, jedes mal ein relativ hohes Losbrechmoment notwendig, um die Ankerplatte gegenüber dem Elektromagneten zu verschieben, so dass hier eine definierte Rahmenkompensation kaum möglich war. Außerdem ist bei dieser Einrichtung der auftretende Verschleiß nicht unerheblich, da die die Dämpfungsfunktion ausübenden Bauteile im mechanischen Kontakt stehen.As well as the damping device according to CH-PS 374 003 has various serious disadvantages, this known damping device could never prevail in practice. Also in the damping device according to CH-PS 374 003 was similar to oil dampers, each time a relatively high breakaway torque necessary to move the armature plate relative to the electromagnet, so that here a defined frame compensation was hardly possible. In addition, the wear occurring in this device is not negligible, since the components performing the damping function are in mechanical contact.

Gemäß der CH-PS 374 003 können Mittel vorgesehen sein, um den Elektromagneten speisenden Strom in seiner Stärke beliebig zu regulieren und die Kraftwirkung des Magnetfeldes der erforderlichen Spulendämpfung anzupassen. Die Regelung der Kraftwirkung des Magnetfeldes für alle Spulstellen erfolgt vorteilhafterweise von einer zentralen Stelle aus. Die beschriebenen Mittel ermöglichen damit jedoch keine individuelle Anpassung der Spulenrahmendämpfung an einer Spulstelle.According to the CH-PS 374 003 means may be provided to arbitrarily regulate the power supply to the electromagnet and to adjust the force of the magnetic field to the required coil attenuation. The regulation of the force effect of the magnetic field for all winding units is advantageously carried out from a central location. However, the described means do not allow individual adaptation of the bobbin frame attenuation at a winding station.

Aus der DE 100 12 005 B4 ist eine Dämpfungseinrichtung bekannt, die ein bewegliches, elektrisch leitfähiges Bauelement aufweist, das zumindest mittelbar mit dem Spulenrahmen verbunden und derart angeordnet ist, dass das Bauelement berührungslos das Magnetfeld eines stationär angeordneten Magnetsystems schneidet. Die Wirkung der Dämpfungseinrichtung beruht dabei auf der Entstehung von Wirbelströmen in dem elektrisch leitfähigen Bauteil. Die Bewegung beziehungsweise das Schwingen des Spulenrahmens wird auf das elektrisch leitfähige Bauteil übertragen. Durch die Bewegung ändert sich das das Bauteil durchdringende Magnetfeld, wodurch eine Spannung in dem Bauteil induziert wird. Die dadurch entstehenden sogenannten Wirbelströme wirken gemäß der Lenzschen Regel der Ursache ihrer Entstehung entgegen, so dass die Schwingungen gedämpft werden. Prinzipbedingt passt sich die Dämpfungswirkung an die jeweils auftretenden Schwingungen an. Weiterhin treten durch die berührungslose Ausführung in Verbindung mit der Dämpfung keinerlei Reibungskräfte auf, wodurch die oben beschriebenen Nachteile vermieden werden.From the DE 100 12 005 B4 a damping device is known, which has a movable, electrically conductive component which is at least indirectly connected to the coil frame and arranged such that the component without contact intersects the magnetic field of a magnet system arranged stationary. The effect of the damping device is based on the formation of eddy currents in the electrically conductive component. The movement or the oscillation of the coil frame is transmitted to the electrically conductive component. As a result of the movement, the magnetic field penetrating the component changes, which induces a voltage in the component. The resulting so-called eddy currents counteract according to the Lenz rule the cause of their formation, so that the vibrations are damped. Due to the principle, the damping effect adapts to the occurring vibrations. Furthermore, due to the non-contact design in conjunction with the damping no friction forces, whereby the disadvantages described above are avoided.

In der Praxis hat sich jedoch gezeigt, dass bei einer Dämpfungseinrichtung, die auf dem Wirbelstromprinzip beruht, die durch die Spulenrahmenschwingung in das leitfähige Bauteil induzierte Spannung nicht ausreicht, um eine zufriedenstellende Dämpfung zu erreichen.In practice, however, it has been found that in a damping device based on the eddy current principle, the voltage induced by the coil frame oscillation in the conductive component is insufficient to achieve a satisfactory damping.

Ausgehend vom vorgenannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine zuverlässige Dämpfung für die Spulenrahmen von Hochleistungstextilmaschinen zu ermöglichen, die sich durch kurze Reaktionszeiten auszeichnet und auch die Dämpfung kleiner Schwingungen ermöglicht.Based on the aforementioned prior art, the present invention seeks to provide a reliable damping for the creel of high-performance textile machines, which is characterized by short reaction times and also allows the damping of small vibrations.

Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale des Verfahrensanspruches 1 sowie des Vorrichtungsanspruches 4 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.The object is achieved by the characterizing features of the method claim 1 and the device claim 4. Advantageous developments of the invention are the subject of the dependent claims.

Zur Lösung der Aufgabe wird der Strom durch die elektrische Spule fortlaufend in Abhängigkeit der Spulenrahmenschwingung eingestellt. Vorteilhafterweise werden dazu die Spulenrahmenschwingungen gemessen. Durch das erfindungsgemäße Verfahren können auch kleine Schwingungen zuverlässig gedämpft werden. Durch eine geeignete Regelung des dämpfenden Stromes können kurze Reaktionszeiten realisiert werden. Die Dämpfung wird an jeder Spulvorrichtung der Kreuzspulen herstellenden Textilmaschine individuell eingestellt. Darüber hinaus sind keine weiteren Dämpfungseinrichtungen erforderlich.To solve the problem, the current through the electric coil is continuously adjusted in response to the coil frame oscillation. Advantageously, the coil frame vibrations are measured for this purpose. By the method according to the invention even small vibrations can be reliably damped. By a suitable control of the damping current short reaction times can be realized. The damping is adjusted individually on each winding device of the cheese-producing textile machine. In addition, no further damping devices are required.

In einer bevorzugten Ausführungsform des erfindungsgemäßen Verfahrens ist die Spule stromlos, solange ein vorgegebener die Spulenrahmenschwingung repräsentierender Wert nicht überschritten wird. Damit ist es möglich, zu definieren, bei welchen Schwingungen eine Dämpfung erforderlich ist und welche Schwingungen noch tolerierbar sind.In a preferred embodiment of the method according to the invention, the coil is de-energized as long as a predetermined value representing the coil frame oscillation is not exceeded. This makes it possible to define in which vibrations a damping is required and which vibrations are still tolerable.

In einer Weiterbildung des erfindungsgemäßen Verfahrens wird ein Strom in die Spule eingeprägt, wenn der vorgegebene, die Spulenrahmenschwingung repräsentierende Wert überschritten wird. Der Strom wird wieder ausgeschaltet, wenn ein zweiter vorgegebener, die Spulenrahmenschwingung repräsentierender Wert unterschritten wird. Vorteilhafterweise ist eine Hysterese vorgesehen, wobei der zweite Wert, bei dem der Strom wieder ausgeschaltet wird, um die Hysterese kleiner ist als der Wert, bei dem der Strom eingeschaltet wird. Ein solches Regelungskonzept ist einfach, aber trotzdem wirkungsvoll.In a development of the method according to the invention, a current is impressed into the coil when the predetermined value representing the coil frame oscillation is exceeded. The current is switched off again when a second predetermined value representing the coil frame oscillation is undershot. Advantageously, a hysteresis is provided, wherein the second value at which the current is switched off again to the hysteresis is smaller than the value at which the current is turned on. Such a control concept is simple but nevertheless effective.

Insbesondere kann in die Spule immer ein konstanter Strom eingeprägt werden.In particular, a constant current can always be impressed into the coil.

Natürlich kann die Einstellung des Dämpfungsstromes in Abhängigkeit von der Spulenrahmenschwingung auch durch andere bekannte Regelungskonzepte realisiert werden.Of course, the adjustment of the damping current as a function of the coil frame oscillation can also be realized by other known control concepts.

Zur Lösung der Aufgabe wird weiterhin eine Spulvorrichtung mit einer Dämpfungseinrichtung vorgeschlagen, die eine elektrische Spule und ein ferromagnetisches Bauteil aufweist, wobei am Spulenrahmen ein Sensor zur Messung der Spulenrahmenschwingungen angeordnet ist und der Sensor mit einer Steuereinheit verbunden ist und die Steuereinheit dazu ausgebildet ist, die Spule in Abhängigkeit vom Sensorsignals zu bestromen. Als Sensor kann dabei ein Beschleunigungsaufnehmer verwendet werden.To solve the problem, a winding device is further proposed with a damping device having an electrical coil and a ferromagnetic component, wherein the coil frame, a sensor for measuring the coil frame vibrations is arranged and the sensor is connected to a control unit and the control unit is adapted to To energize coil depending on the sensor signal. As an accelerometer sensor can be used.

In einer bevorzugten Ausführungsform weist die Steuereinheit einen Zweipunktregler auf, dessen Eingangssignal durch das Sensorsignal gebildet wird, wobei der Strom durch die Spule mittels des Zweipunktreglers ein- und ausschaltbar ist. Der Zweipunktregler kann zum Beispiel als Schmitt-Trigger ausgebildet sein. Alternativ kann der Zweipunktregler auch digital realisiert sein.In a preferred embodiment, the control unit has a two-position controller whose input signal is formed by the sensor signal, wherein the current through the coil by means of the two-point controller is switched on and off. The two-position controller can be designed, for example, as a Schmitt trigger. Alternatively, the two-point controller can also be realized digitally.

Zur Einstellung des Stromes durch die Dämpferspule in Abhängigkeit der Rahmenschwingung können auch andere bekannte Regler verwendet werden. So kann anstelle des unstetigen Zweipunktreglers zum Beispiel auch ein linearer Regler verwendet werden.To adjust the current through the damper coil in response to the frame vibration, other known controller can be used. Thus, for example, a linear regulator can be used instead of the discontinuous two-step controller.

Vorteilhafterweise ist das ferromagnetische Bauteil der Dämpfungseinrichtung als Stange ausgebildet. Die elektrische Spule wird vorteilhafterweise von der Stange durchdrungen.Advantageously, the ferromagnetic component of the damping device is designed as a rod. The electric coil is advantageously penetrated by the rod.

Durch diese Ausgestaltung der Erfindung ist es möglich, die Dämpfungseinrichtung reibungsfrei zu realisieren. Die Stange kann zum Beispiel als Hubstange ausgebildet und mit dem Spulenrahmen verbunden sein. Die Hubstange folgt dann der Bewegung des Spulenrahmens und die elektrische Spule ist ortsfest an der Spulvorrichtung montiert. Es ist aber auch die umgekehrte Anordnung denkbar. Das heißt, die elektrische Spule ist am Spulenrahmen montiert und die Stange ortsfest an der Spulvorrichtung. Beim Aufbau der Kreuzspule und bei Schwingungen des Spulenrahmens bewegen sich die Stange und die elektrische Spule relativ zueinander, eine Berührung der beiden Komponenten erfolgt nicht. Wenn die Spule bestromt wird, wird auf die Stange in Richtung der Durchdringung eine Haltekraft ausgeübt. Weiterhin ist die Stange durch die Wirkung des Magnetfeldes bestrebt, sich innerhalb der elektrischen Spule zu zentrieren. Dadurch wird die Berührungsfreiheit noch unterstützt.This embodiment of the invention makes it possible to realize the damping device without friction. The rod may for example be designed as a lifting rod and connected to the coil frame. The lifting rod then follows the movement of the coil frame and the electric coil is fixedly mounted on the winding device. But it is also the reverse arrangement conceivable. That is, the electric coil is mounted on the coil frame and the rod is fixed to the winding device. In the construction of the cheese and vibrations of the coil frame, the rod and the electric coil move relative to each other, a touch of the two components does not occur. When the coil is energized, a holding force is exerted on the rod in the direction of penetration. Furthermore, the rod is endeavored by the action of the magnetic field to center itself within the electrical coil. Thus, the freedom of touch is still supported.

Die Erfindung wird nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.The invention will be explained in more detail with reference to an embodiment shown in the drawings.

Es zeigen:

Fig. 1
eine erfindungsgemäße Spuleinrichtung mit einer Dämpfungseinrichtung;
Fig. 2
eine grafische Darstellung des Messsignals eines Beschleunigungsaufnehmers und den zugehörigen Spulenstrom.
Show it:
Fig. 1
a winding device according to the invention with a damping device;
Fig. 2
a graphical representation of the measuring signal of an accelerometer and the associated coil current.

Die Fig. 1 zeigt eine erfindungsgemäße Spuleinrichtung 1 einer Kreuzspulen herstellenden Textilmaschine. In einem um die Achse 5 schwenkbar gelagerten Spulenrahmen 2 ist eine Kreuzspule 3 drehbar gelagert. Auf die Kreuzspule 3 wird ein Faden aufgewickelt, der aus einer Spinnvorrichtung oder von einer Ablaufspule abgezogen wird. Die Kreuzspule 3 wird mittels Reibschluss von der Trommel 4 angetrieben. Um einen ausreichenden Auflagedruck der Kreuzspule 3 auf die Trommel 4 zu gewährleisten, ist ein Belastungsmittel 6, hier eine Feder, vorgesehen. In dem in Fig. 1 dargestellten Zustand übt die Feder 6 ein Drehmoment auf den Spulerahmen 2 aus, das die Kreuzspule 3 auf die Abtriebstrommel 4 drückt. Mit dem weiteren Aufbau der Kreuzspule 3 schwenkt der Spulenrahmen um die Achse 5 und das auf den Spulenrahmen 2 von der Feder 6 ausgeübte Drehmoment kehrt seine Richtung um und drückt die Kreuzspule 3 von der Antriebstrommel 4 weg. Auf diese Weise wird das zunehmende Gewicht der Kreuzspule kompensiert.The Fig. 1 shows a winding device 1 according to the invention of a cheese-producing textile machine. In a creel 2 pivotally mounted about the axis 5 a cross-wound bobbin 3 is rotatably mounted. On the cheese 3 is a thread wound, which is withdrawn from a spinning device or from a delivery bobbin. The cross-wound bobbin 3 is driven by the drum 4 by means of frictional engagement. In order to ensure a sufficient contact pressure of the cross-wound bobbin 3 on the drum 4, a loading means 6, here a spring, is provided. In the in Fig. 1 shown state, the spring 6 exerts a torque on the Spulerahmen 2, which presses the cheese 3 on the output drum 4. With the further construction of the cheese 3, the creel pivots about the axis 5 and the force exerted on the creel 2 by the spring 6 torque reverses its direction and pushes the cheese 3 away from the drive drum 4. In this way, the increasing weight of the cheese is compensated.

Die Spuleinrichtung 1 weist eine Dämpfungseinrichtung auf, welche eine Spule 7, eine Hubstange 8 aus Eisen sowie einen Beschleunigungsaufnehmer 11 und eine Steuereinheit 10 beinhaltet. Die Hubstange 8 durchdringt in ihrer Längsrichtung die Querschnittsfläche der Spule 7. Die Spule 7 ist außerhalb des Spulenrahmens 2 an der Spuleinrichtung 3 befestigt. Die Hubstange 8 ist dagegen über das Gelenk 9 mit dem Spulenrahmen 2 verbunden. Der Beschleunigungsaufnehmer 11 ist am Spulenrahmen 2 angebracht und misst so die Spulenrahmenschwingungen. Der Beschleunigungsaufnehmer 11 übermittelt die gemessenen Beschleunigungswerte a über die Steuerleitung 12 an die Steuereinheit 10. In Abhängigkeit dieser Messsignale prägt die Steuereinheit einen Strom i über die Leitungen 13 und 14 in die Spule 7 ein.The winding device 1 has a damping device, which includes a coil 7, a lifting rod 8 made of iron and an acceleration sensor 11 and a control unit 10. The lifting rod 8 penetrates in its longitudinal direction, the cross-sectional area of the coil 7. The coil 7 is fixed outside of the coil frame 2 to the winding device 3. The lifting rod 8, however, is connected via the hinge 9 with the coil frame 2. The accelerometer 11 is attached to the creel 2 and thus measures the creel vibrations. The acceleration sensor 11 transmits the measured acceleration values a to the control unit 10 via the control line 12. In dependence on these measurement signals, the control unit impresses a current i via the lines 13 and 14 into the coil 7.

Die Fig. 2 zeigt zum einen einen Verlauf der vom Beschleunigungsaufnehmer 11 erfassten Beschleunigungswerte a über die Zeit t und zum anderen den analogen zeitlichen Verlauf des Stromes i durch die Spule 7. Vor dem Zeitpunkt t1 liegen die Beschleunigungswerte unterhalb eines zulässigen Wertes und die Spule ist stromlos. Die Dämpfungseinrichtung übt keine Kraft aus. Zum Zeitpunkt t1 erreicht die Beschleunigung einen Wert aein. Das ist die Einschaltschwelle für den Regler der Steuereinheit 10, der im Ausführungsbeispiel als Zweipunktregler ausgebildet ist. Somit schaltet der Regler zum Zeitpunkt t1 den Strom i0 auf die Spule 7. Durch den Strom wird um die Leiter der Spule ein Magnetfeld aufgebaut. Damit wird auf die Hubstange eine Haltekraft ausgeübt, die der Spulenrahmenschwingung entgegenwirkt. Der Regler weist eine Hysterese auf, so dass eine Abschaltung des in die Spule 7 eingeprägten Stromes i0 erst nach Unterschreiten eines Beschleunigungswertes aaus erfolgt, der zum Zeitpunkt t2 erreicht ist. Der Beschleunigungswert aaus ist dabei kleiner als der Einschaltwert aein. Mit der beschriebenen Zweipunktregelung ist eine einfache aber wirkungsvolle Regelung der Dämpfungseinrichtung möglich.The Fig. 2 shows on the one hand a profile of the acceleration detected by the acceleration values a 11 over the time t and on the other analog time course of the current through the coil 7 are i Prior to time t 1 Acceleration values below a permissible value and the coil is de-energized. The damping device exerts no force. At time t 1 , the acceleration reaches a value a . This is the turn-on threshold for the controller of the control unit 10, which is formed in the embodiment as a two-step controller. Thus, the controller switches the current i 0 to the coil 7 at time t 1. The current builds up a magnetic field around the conductors of the coil. Thus, a holding force is exerted on the lifting rod, which counteracts the coil frame oscillation. The controller has a hysteresis, so that a shutdown of impressed in the coil 7 current i 0 takes place only after falling below an acceleration value a out , which is reached at time t 2 . The acceleration value a out is smaller than the switch-on value a on . With the described two-step control a simple but effective control of the damping device is possible.

Claims (8)

Verfahren zum Betreiben einer Spulvorrichtung (1) für eine Kreuzspulen herstellende Textilmaschine mit einem schwenkbar gelagerten Spulenrahmen (2) zum Halten einer Kreuzspule (3) sowie mit einer Dämpfungseinrichtung zum Dämpfen von Spulenrahmenschwingungen, wobei die Dämpfung durch die magnetische Kraftwirkung zwischen einer elektrischen Spule (7) und einem ferromagnetischen Bauteil (8) bewirkt wird, dadurch gekennzeichnet, dass die Spulenrahmenschwingung gemessen und der Strom (i) durch die elektrische Spule (7) fortlaufend in Abhängigkeit von der Spulenrahmenschwingung eingestellt wird.Method for operating a winding machine (1) for a textile machine producing cross-wound bobbins with a pivotally mounted creel (2) for holding a cross-wound bobbin (3) and with damping means for damping coil frame vibrations, the damping being due to the magnetic force acting between an electric bobbin (7 ) and a ferromagnetic component (8), characterized in that the coil frame oscillation is measured and the current (i) is continuously adjusted by the electrical coil (7) in response to the coil frame oscillation. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die elektrische Spule (7) stromlos ist, solange ein vorgegebener die Spulenrahmenschwingung repräsentierender Wert (aein) nicht überschritten wird.A method according to claim 1, characterized in that the electrical coil (7) is de-energized, as long as a predetermined value representing the coil frame oscillation ( a on ) is not exceeded. Verfahren nach Anspruch 2, dadurch gekennzeichnet, dass ein Strom (i0) in die elektrische Spule (7) eingeprägt wird, wenn der vorgegebene, die Spulenrahmenschwingung repräsentierende Wert (aein) überschritten wird und dass der Strom (i0) wieder ausgeschaltet wird, wenn ein zweiter vorgegebener, die Spulenrahmenschwingung repräsentierender Wert (aaus) unterschritten wird.A method according to claim 2, characterized in that a current (i 0 ) is impressed into the electrical coil (7) when the predetermined, the coil frame oscillation representing value (a a ) is exceeded and that the current (i 0 ) is turned off again when a second predetermined, the coil frame oscillation representative value (a out ) is exceeded. Spulvorrichtung (1) für eine Kreuzspulen herstellende Textilmaschine mit einem schwenkbar gelagerten Spulenrahmen (2) zum Halten einer Kreuzspule (3) sowie mit einer Dämpfungseinrichtung zum Dämpfen von Spulenrahmenschwingungen zur Durchführung des Verfahrens nach Anspruch 1, wobei die Dämpfungseinrichtung eine elektrische Spule (7) und ein ferromagnetisches Bauteil (8) aufweist, dadurch gekennzeichnet, dass am Spulenrahmen ein Sensor (11) zur Messung der Spulenrahmenschwingungen angeordnet ist, wobei der Sensor (11) mit einer Steuereinheit (10) verbunden ist und die Steuereinheit (10) dazu ausgebildet ist, die elektrische Spule (7) in Abhängigkeit vom Sensorsignal (a) zu bestromen.Spooling device (1) for a cross-wound textile machine with a pivotally mounted coil frame (2) for holding a cross-wound bobbin (3) and with a damping device for damping coil frame vibrations for carrying out the method according to claim 1, wherein the damping device comprises an electrical coil (7) and a ferromagnetic component (8), characterized in that a sensor (11) for measuring the coil frame vibrations is arranged on the coil frame, wherein the sensor (11) is connected to a control unit (10) and the control unit (10) is designed to to energize the electrical coil (7) in response to the sensor signal (a). Spulvorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass als Sensor ein Beschleunigungsaufnehmer (11) verwendet wird.Winding device according to claim 4, characterized in that an acceleration sensor (11) is used as the sensor. Spulvorrichtung nach einem der Ansprüche 4 oder 5, dadurch gekennzeichnet, dass die Steuereinheit (10) einen Zweipunktregler aufweist, dessen Eingangssignal durch das Sensorsignal (a) gebildet wird, wobei der Strom (i0) durch die elektrische Spule (7) mittels des Zweipunktreglers ein- und ausschaltbar ist.Winding device according to one of claims 4 or 5, characterized in that the control unit (10) comprises a two-position controller whose input signal is formed by the sensor signal (a), wherein the current (i 0 ) through the electrical coil (7) by means of the two-point controller can be switched on and off. Spulvorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, dass das ferromagnetische Bauteil der Dämpfungseinrichtung als Stange (8) ausgebildet ist.Winding device according to one of claims 4 to 6, characterized in that the ferromagnetic component of the damping device is designed as a rod (8). Spulvorrichtung nach Anspruch 7 dadurch gekennzeichnet, dass die elektrische Spule (7) von der Stange (8) durchdrungen wird.Winding device according to claim 7, characterized in that the electric coil (7) is penetrated by the rod (8).
EP09012488.4A 2008-10-21 2009-10-02 Spooling device for a textile machine for creating cross-wound spools and method for operating the same Active EP2179956B1 (en)

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WO2019007729A1 (en) * 2017-07-05 2019-01-10 SSM Schärer Schweiter Mettler AG Winding device with support roller and pressing force-regulating device, and thread processing machine
EP3812327A1 (en) * 2019-10-23 2021-04-28 Saurer Spinning Solutions GmbH & Co. KG Textile machine
EP3798166A4 (en) * 2018-05-21 2022-02-23 TMT Machinery, Inc. Yarn winding machine

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EP3798166A4 (en) * 2018-05-21 2022-02-23 TMT Machinery, Inc. Yarn winding machine
EP4339145A3 (en) * 2018-05-21 2024-03-27 TMT Machinery, Inc. Yarn winder
EP3812327A1 (en) * 2019-10-23 2021-04-28 Saurer Spinning Solutions GmbH & Co. KG Textile machine

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CN101898704A (en) 2010-12-01
CN101898704B (en) 2012-11-14
EP2179956A3 (en) 2012-10-10
DE102008052505A1 (en) 2010-04-22
EP2179956B1 (en) 2016-02-24

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