EP1361997B1 - Thread supplying device - Google Patents

Thread supplying device Download PDF

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Publication number
EP1361997B1
EP1361997B1 EP02718128A EP02718128A EP1361997B1 EP 1361997 B1 EP1361997 B1 EP 1361997B1 EP 02718128 A EP02718128 A EP 02718128A EP 02718128 A EP02718128 A EP 02718128A EP 1361997 B1 EP1361997 B1 EP 1361997B1
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EP
European Patent Office
Prior art keywords
housing
rotor
motor shaft
stator
rotary position
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
EP02718128A
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German (de)
French (fr)
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EP1361997A1 (en
Inventor
Egon Johansson
Pär JOSEFSSON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iropa AG
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Iropa AG
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Publication of EP1361997A1 publication Critical patent/EP1361997A1/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00Forwarding filamentary material
    • B65H51/20Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
    • B65H51/22Reels or cages, e.g. cylindrical, with storing and forwarding surfaces provided by rollers or bars
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/34Handling the weft between bulk storage and weft-inserting means
    • D03D47/36Measuring and cutting the weft
    • D03D47/361Drum-type weft feeding devices

Definitions

  • the invention relates to a yarn feeding device specified in the preamble of claim 1 kind
  • the electric motor is an asynchronous motor, the design a complex control electronics needed and a performance has some compromises in driving the yarn guide element of the yarn feeding device to accept
  • the known yarn feeding devices there are Equipment variants in which the threading of a new thread simplifies or even is automated
  • For manual threading with a thread needle can be fixed in the housing Outrigger a guideway used for the threading needle to to bring the new thread to the fume hood.
  • an automatic or semi-automatic pneumatic threading system is used as a threading device in the housing-fixed boom a guideway for the new thread transporting Air flow provided. in both cases, it is necessary, the thread guide spatially align with the threading device for threading.
  • this target rotational position of the motor shaft is corresponding to the Alignment of the yarn guide element reaches the threading, without that the motor shaft continues to rotate in or against the previous direction of rotation.
  • the invention is based on the object, an improved yarn feeding device of the beginning to create said type in which needed at standstill for threading Target position is reproducible adjustable.
  • the equipment of the yarn feeding device with the permanent magnet motor has the advantage that in terms of the operating behavior less compromises in Buy as with an asynchronous motor.
  • the permanent magnet motor is easier to control, more compact and in control Large-scale production more cost-effective. Above all, it also offers the important advantage of one easy integration into computerized data and signal transmission systems from Textile machinery.
  • Manufacturing becomes easy with a fixed assignment between the motor shaft and the rotor and the thread guide element exclusively the rotational position of the stator in the housing matched to the desired rotational position, with the threading of the thread guide element This means that the rotor is firmly on the motor shaft attached, and the yarn guide is firmly connected to the motor shaft.
  • the mentioned rotational positioning by means of a Positioning device only of the stator in the housing is the first option.
  • alternative or additively can also be a rotational positioning between the rotor and the motor shaft be made to the desired threading position of the thread guide element produce in interaction with a stable relative rotational position of the rotor, and alternatively or additively by a rotational positioning of the yarn guide element relative to the motor shaft.
  • the option to be selected depends on the Structural conditions in the yarn feeder.
  • At least one engagement point is provided on the stator, at the one Engagement element of the housing can be brought to attack to the stator so in the housing to rotate that one of the stable relative rotational positions with the threading position the thread guide element correlated.
  • the point of engagement is a recess or longitudinal groove in the manufacturing process Outer circumference of the stator.
  • a projection in the housing becomes engaged with this Appropriately, a dowel screw is screwed, the ensures the positioning of the stator.
  • the engagement element should be provided on the underside of the housing become. Is tuned to this position of the engagement element in the housing the respective engagement point on the stator with respect to the rotational angle of the rotor at its stable relative rotational positions placed.
  • the rotor has several stable relative rotational positions within a full turn has, it is appropriate, one of the number of pole pairs of the stator corresponding number From intervention points to distribute the circumference and of which one optional for Use rotary positioning of the stator by means of the engagement member.
  • the threading device as known per se, one in a boom fixed to the housing provided guide for either a threading needle or a Einfädel Kunststoffstrom be.
  • the desired rotational position of the motor shaft is then the outlet of the Yarn guiding element forming winding tube of the motor shaft aligned with the guide, when the rotor of the currentless permanent magnet motor has a certain one of its stable relative rotational positions has taken.
  • the position signal of a rotational position sensor of the Yarn feeding device are used, the motor control reaching the threading position the thread guide element confirmed.
  • a yarn feeder F shown in Figs. 1 and 2 is, for example, a weft feeder for a loom and has a manual equipment or automated or semi-automated threading a new thread.
  • the yarn feeding device F has a solid housing 1 with a housing-fixed Outrigger 2 on.
  • a Guide 3 is provided, either for guiding a threading needle or a new thread through the yarn feeding device F transporting air flow usable is.
  • a permanent magnet motor PM is mounted, serving as a drive of a thread guide element E, with which a in Fig. 1 from the left incoming, not shown thread through the thread guide E through to one Memory surface of a storage body D can be brought to a thread supply, not shown to form, from which the thread in Fig. 1 to the right for consumption deducted becomes.
  • the permanent magnet motor PM consists of a fixed in the housing 1 stator S and a rotor R, which is mounted in the stator S on a motor shaft W, in Bearings 4 is rotatably mounted in the housing, and the storage body D carries.
  • a control electronics C for the permanent magnet motor PM arranged, via a connection 6 with the permanent magnet motor
  • a rotational position sensor H may be provided be, e.g. a Hall sensor, which is arranged in the housing 1 and the rotational position of the Yaw element E scans and generates, for example, a signal and upper one Connection 9 transmitted to the control electronics C when the yarn guide E in the one shown in Fig. 1, on the guide 3 of the threading T aligned Threading position has arrived.
  • the storage body D is on the motor shaft W in a manner not shown to the latter Axis X is rotatably mounted It is arranged in the housing 1 permanent magnet 7, which is arranged in the storage body D permanent magnet 8 via the Working together thread guide element E, the co-rotation with the motor shaft W hindered (stationary storage body).
  • the motor shaft W is at least in its left End portion formed as a hollow shaft (not shown).
  • the thread guide E is integrated in this case in a so-called winding disk and by one of the Motor shaft W obliquely outwardly extending winding tube formed.
  • Fig. 2 the rotatably mounted on the motor shaft W rotor R with a fitting several distributed in the circumferential direction, possibly different spaced, permanent magnet 11 recognizable.
  • the stator S has in the circumferential direction distributed Polkeme 12, between which cavities 13 for turns, not shown or windings.
  • a stable relative rotational position is with the two arrows pointing to each other DLS indicated
  • the motor shaft W takes a Target rotational position Y, in which the yarn guide E its indicated by Z. Threading has and aligned with the guide 3 of the Einfädefvorraum T.
  • the stable relative rotational position DLS and the dependent rotational position dependent therefrom Y of the motor shaft with the threading Z of the yarn guide E in FIG. 2 are on the Distributed circumferentially of the stator are a plurality of engagement points 14, e.g.
  • depressions or Longitudinal grooves, formed in one of these engagement points 14 is an engagement member 15 of the Housing 1 brought into engagement
  • the engagement element 15 is for example a Bolt 16, which is screwed through a threaded hole 17 in the housing 1 becomes.
  • the threaded bore 17 is expediently located on the housing extension 2 with respect to the axis X diametrically opposite housing bottom 10. Of the multiple points of engagement 14, either may be for cooperation be used with the engagement member 15.
  • the engagement points 14 are so arranged on the circumference of the stator S, that, with proper engagement between an engagement point 14 and the engagement member 15, the thread guide E is precisely aligned with the threading device T, although the rotor R at the same time one of its stable relative rotational positions, eg. DLS, has taken.
  • the confirmation signal of the one shown in FIG Rotary position sensor H can be used as a reference to the rotor R when stopping of the permanent magnet motor PM to turn into a stable rotational position DLS and the Sensor H confirms the achievement of the desired position Y of the motor shaft W, and also then the rotor has assumed the predetermined stable relative rotational position.
  • the rotational position of the stator S predetermined so that the above-mentioned results are achieved.
  • the thread guide E relative to the motor shaft W to twist and then set, if at the present installation position of the stator S in the housing 1, the threading Z at a stable relative rotational position of the rotor R is reached.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Looms (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Sewing Machines And Sewing (AREA)

Description

Die Erfindung betrifft ein Fadenliefergerät der im Oberbegriff des Anspruchs 1 angegebenen ArtThe invention relates to a yarn feeding device specified in the preamble of claim 1 kind

Bei bekannten Fadenliefergeräten ist der Elektromotor ein Asynchronmotor, der bauartbedingt eine aufwendige Steuerungselektronik benötigt und ein Betriebsverhalten hat, das beim Antreiben des Fadenführelements des Fadenliefergeräts einige Kompromisse zu akzeptieren erfordert Unter den bekannten Fadenliefergeräten gibt es Ausstattungsvarianten, bei denen das Einfädeln eines neuen Fadens vereinfacht oder sogar automatisiert ist Zum manuellen Einfädeln mit einer Einfädeinadel kann im gehäusefesten Ausleger eine Führungsbahn für die Einfädelnadel benutzt werden, um den neuen Faden zum Abzugsbereich zu bringen. Bei einem automatischen oder halbautomatischen pneumatischen Einfädelsystem ist als eine Einfädeleinrichtung im gehäusefesten Ausleger eine Führungsbahn für den den neuen Faden transportierenden Luftstrom vorgesehen. in beiden Fällen ist es erforderlich, das Fadenführelement zum Einfädeln räumlich auf die Einfädeleinrichtung auszurichten. Dazu wird in vielen Fällen steuerungsseitig beim Anhalten des Elektromotors die Motorwelle so weit gedreht, dass das Fadenführelement beim Stillstand exakt auf die Einfädeleinrichtung ausgerichtet ist Dabei ist diese Soll-Drehposition der Motorwelle entsprechend der Ausrichtung des Fadenführelements auf die Einfädeleinrichtung erreicht, ohne dass sich die Motorwelle in der oder gegen die vorherige Drehrichtung weiterdreht.In known yarn feeding devices, the electric motor is an asynchronous motor, the design a complex control electronics needed and a performance has some compromises in driving the yarn guide element of the yarn feeding device to accept Among the known yarn feeding devices there are Equipment variants in which the threading of a new thread simplifies or even is automated For manual threading with a thread needle can be fixed in the housing Outrigger a guideway used for the threading needle to to bring the new thread to the fume hood. In an automatic or semi-automatic pneumatic threading system is used as a threading device in the housing-fixed boom a guideway for the new thread transporting Air flow provided. in both cases, it is necessary, the thread guide spatially align with the threading device for threading. This is in many Cases control side when stopping the electric motor, the motor shaft rotated so far, that the thread guide element at standstill exactly on the threading device In this case, this target rotational position of the motor shaft is corresponding to the Alignment of the yarn guide element reaches the threading, without that the motor shaft continues to rotate in or against the previous direction of rotation.

Seit langem gibt es Vorschläge, als Elektromotor eines Fadenliefergeräts einen Permanentmagnetmotor zu benutzen. Bauartbedingt hat der Rotor eines stromlosen Permanentmagnetmotors die Tendenz, genau eine von mehreren stabilen Relativ-Drehlagen einzunehmen, wenn er zum Stillstand kommt Es gibt nämlich abwechselnd stabile und instabile Relativ-Drehlagen des Rotors. Käme der Rotor zufällig im Bereich einer instabilen Drehlage zum Stillstand, dann dreht er sich ohne Einfluss von außen entweder in der vorhergehenden Drehrichtung oder entgegengesetzt in eine stabile Drehlage. Dieses Phänomen des Permanentmagnetmotors führt in einem Fadenliefergerät mit einer Einfädeleinrichtung zu Problemen, bei der Einstellung der Sollposition der Motorwelle, in der das Fadenführelement mit der Einfädeleinrichtung zusammenarbeiten muss.For a long time there have been proposals, as an electric motor of a yarn feeding device, a permanent magnet motor to use. Due to the design of the rotor has a currentless Permanent magnet motor the tendency, exactly one of several stable relative rotational positions to take when it comes to a standstill There is in fact alternation stable and unstable relative rotational positions of the rotor. The rotor would happen in the Area of an unstable rotational position to a stop, then it turns without influence of outside either in the previous direction of rotation or opposite in one stable rotational position. This phenomenon of the permanent magnet motor results in a yarn feeding device with a threading device to problems in setting the Target position of the motor shaft in which the thread guide element with the threading device work together.

Der Erfindung liegt die Aufgabe zugrunde, ein verbessertes Fadenliefergerät der eingangs genannten Art zu schaffen, bei dem im Stillstand die für das Einfädeln benötigte Sollposition reproduzierbar einstellbar ist.The invention is based on the object, an improved yarn feeding device of the beginning to create said type in which needed at standstill for threading Target position is reproducible adjustable.

Die gestellte Aufgabe wird mit dem Merkmal des Anspruchs 1 gelöst.The stated object is achieved with the feature of claim 1.

Die Ausstattung des Fadenliefergeräts mit dem Permanentmagnetmotor hat den Vorteil, dass hinsichtlich des betriebsseitigen Betriebsverhaltens weniger Kompromisse in Kauf genommen zu werden brauchen, wie mit einem Asynchronmotor. Der Permanentmagnetmotor ist steuerungsseitig einfacher zu beherrschen, kompakter und in Großserie kostengünstiger. Er bietet vor allem auch den wichtigen Vorteil einer leichten Integration, in computerisierte Daten- und Signalübertragungssysteme von Textilmaschinen. Der bauartbedingte, unvermeidbare Effekt der mehreren stabilen und instabilen Drehlagen des Rotors des stromlosen Permanentmagnetmotors wird bewusst genutzt, um das Fadenführelement in der Einfädelposition relativ stabil festzulegen, da die zusammenwirkende Komponentengruppe aus dem Stator, dem Rotor des Permanentmagnetmotors, der Motorwelle und dem Fadenführelement so in das Gehäuse eingebaut ist, dass eine der stabilen Relativ-Drehlagen des Rotors zu der Soll-Drehposition der Motorwelle und damit der Einfädelposition des Einführelements passen muss. Es ist dadurch leicht möglich, beim Anhaften des Permanentmagnetmotors das Fadenführelement korrekt in der Einfädelposition zu positionieren ohne zusätzliche Mittel festzuhalten. Bei der Konzeption des Fadenliefergeräts ist es unter Berücksichtigung der stabilen und instabilen Relativ-Drehlage des Rotors nur erforderlich, zufällige Einbaupositionen zu vermeiden und eine bauseitig vorherbestimmte Einbauposition zu gewährieisten.The equipment of the yarn feeding device with the permanent magnet motor has the advantage that in terms of the operating behavior less compromises in Buy as with an asynchronous motor. The permanent magnet motor is easier to control, more compact and in control Large-scale production more cost-effective. Above all, it also offers the important advantage of one easy integration into computerized data and signal transmission systems from Textile machinery. The design-related, unavoidable effect of several stable and unstable rotational positions of the rotor of the electroless permanent magnet motor used deliberately to set the thread guide element in the threading relatively stable, because the cooperating component group from the stator, the rotor of the permanent magnet motor, the motor shaft and the thread guide element so in the Housing is installed that one of the stable relative rotational positions of the rotor to the Target rotational position of the motor shaft and thus the threading of the insertion must fit. It is thus easily possible when adhering the permanent magnet motor to position the thread guide correctly in the threading position without to record additional funds. When designing the yarn feeding device, it is under Consideration of the stable and unstable relative rotational position of the rotor only required to avoid random installation positions and an on-site predetermined To ensure installation position.

Herstellungseinfach wird bei fester Zuordnung zwischen der Motorwelle und dem Rotor und dem Fadenführelement ausschließlich die Drehposition des Stators im Gehäuse auf die Soll-Drehposition abgestimmt, die mit der Einfädelposition des Fadenführelements übereinstimmt Dies bedeutet, dass der Rotor fest auf der Motorwelle angebracht, und das Fadenführelement fest mit der Motorwelle verbunden ist.Manufacturing becomes easy with a fixed assignment between the motor shaft and the rotor and the thread guide element exclusively the rotational position of the stator in the housing matched to the desired rotational position, with the threading of the thread guide element This means that the rotor is firmly on the motor shaft attached, and the yarn guide is firmly connected to the motor shaft.

Allerdings gibt es mehrere Möglichkeiten, die instabilen Relativ-Drehlagen des Rotors des Permanentmagnetmotors ihres Einflusses auf die gewünschte Einfädelposition des Fadenführelementes zu entledigen. Die erwähnte Drehpositionierung mittels einer Positionsvorrichtung nur des Stators im Gehäuse ist die erste Möglichkeit. Alternativ oder additiv kann auch eine Drehpositionierung zwischen dem Rotor und der Motorwelle vorgenommen werden, um die gewünschte Einfädelposition des Fadenführelementes im Zusammenspiel mit einer stabilen Relativ-Drehlage des Rotors herzustellen, und alternativ oder additiv auch durch eine Drehpositionierung des Fadenführelements relativ zur Motorwelle. Die auszuwählende Möglichkeit richtet sich nach den baulichen Gegebenheiten im Fadenliefergerät.However, there are several possibilities, the unstable relative rotational positions of the rotor the permanent magnet motor of their influence on the desired threading position the thread guide element to get rid. The mentioned rotational positioning by means of a Positioning device only of the stator in the housing is the first option. alternative or additively can also be a rotational positioning between the rotor and the motor shaft be made to the desired threading position of the thread guide element produce in interaction with a stable relative rotational position of the rotor, and alternatively or additively by a rotational positioning of the yarn guide element relative to the motor shaft. The option to be selected depends on the Structural conditions in the yarn feeder.

Zweckmäßig wird am Stator wenigstens eine Eingriffsstelle vorgesehen, an der ein Eingriffselement des Gehäuses zum Angriff bringbar ist, um den Stator so im Gehäuse zu drehpositionieren, dass eine der stabilen Relativ-Drehlagen mit der Einfädelposition des Fadenführelements korreliert.Appropriately, at least one engagement point is provided on the stator, at the one Engagement element of the housing can be brought to attack to the stator so in the housing to rotate that one of the stable relative rotational positions with the threading position the thread guide element correlated.

Herstellungstechnisch einfach ist die Eingriffsstelle eine Vertiefung oder Längsnut im Außenumfang des Stators. Ein Vorsprung im Gehäuse wird zum Eingriff mit dieser Eingriffsstelle gebracht Zweckmäßigerweise wird eine Passschraube eingedreht, die die Positionierung des Stators sicherstellt.In terms of manufacturing technology, the point of engagement is a recess or longitudinal groove in the manufacturing process Outer circumference of the stator. A projection in the housing becomes engaged with this Appropriately, a dowel screw is screwed, the ensures the positioning of the stator.

Aus Montagegründen sollte das Eingriffselement an der Gehäuseunterseite vorgesehen werden. Auf diese Position des Eingriffselements im Gehäuse abgestimmt wird die jeweilige Eingriffsstelle am Stator im Hinblick auf die Drehwinkel des Rotors bei seiner stabilen Relativ-Drehlagen platziert.For assembly reasons, the engagement element should be provided on the underside of the housing become. Is tuned to this position of the engagement element in the housing the respective engagement point on the stator with respect to the rotational angle of the rotor at its stable relative rotational positions placed.

Da der Rotor mehrere stabile Relativ-Drehlagen innerhalb einer vollen Umdrehung hat, ist es zweckmäßig, eine der Anzahl der Polpaare des Stators entsprechende Anzahl von Eingriffsstellen Ober den Umfang zu verteilen und davon eine wahlweise zum Drehpositionieren des Stators mittels des Eingriffselements zu nutzen. Because the rotor has several stable relative rotational positions within a full turn has, it is appropriate, one of the number of pole pairs of the stator corresponding number From intervention points to distribute the circumference and of which one optional for Use rotary positioning of the stator by means of the engagement member.

Die Einfädeleinrichtung kann, wie an sich bekannt, eine in einem gehäusefesten Ausleger vorgesehene Führung für entweder eine Einfädelnadel oder einen Einfädelluftstrom sein. In der Soll-Drehposition der Motorwelle ist dann der Auslass eines das Fadenführelement bildenden Wickelrohrs der Motorwelle auf die Führung ausgerichtet, wenn der Rotor des stromlosen Permanentmagnetmotors eine bestimmte seiner stabilen Relativ-Drehlagen eingenommen hat.The threading device, as known per se, one in a boom fixed to the housing provided guide for either a threading needle or a Einfädelluftstrom be. In the desired rotational position of the motor shaft is then the outlet of the Yarn guiding element forming winding tube of the motor shaft aligned with the guide, when the rotor of the currentless permanent magnet motor has a certain one of its stable relative rotational positions has taken.

Bei einem Permanentmagnetmotor sind in der Steuerungselektronik mit relativ geringern Aufwand Drehwinkel-lnformationen des Rotors vorhanden, die nutzbar sind, um beim Anhalten des Permanentmagnetmotors über eine Motorstopproutine den Rotor in die mit der Soll-Drehposition der Motorwelle korrelierende stabile Retativ-Drehlage einzustellen.In a permanent magnet motor are relatively less in the control electronics Effort rotational angle information of the rotor available, which are usable to when stopping the permanent magnet motor via a Motorstopproutine the rotor in the correlated with the desired rotational position of the motor shaft stable retative rotational position adjust.

Alternativ oder additiv kann auch das Positionssignal eines Drehpositionssensors des Fadenliefergeräts genutzt werden, das der Motorsteuerung das Erreichen der Einfädelposition des Fadenführelements bestätigt.Alternatively or additionally, the position signal of a rotational position sensor of the Yarn feeding device are used, the motor control reaching the threading position the thread guide element confirmed.

Anhand der Zeichnung werden Ausführungsformen des Erfindungsgegenstandes erläutert. Es zeigen:

Fig. 1
einen Längsschnitt eines Fadenliefergeräts mit einem Permanentmagnetmotor, und
Fig. 2
einen Querschnitt des Fadenliefergeräts.
Reference to the drawings, embodiments of the subject invention will be explained. Show it:
Fig. 1
a longitudinal section of a yarn feeding device with a permanent magnet motor, and
Fig. 2
a cross section of the yarn feeding device.

Ein in den Fig. 1 und 2 gezeigtes Fadenliefergerät F ist beispielsweise ein Schussfaden-Liefergerät für eine Webmaschine und besitzt eine Ausstattung zum manuellen oder automatisierten oder halbautomatisierien Einfädeln eines neuen Fadens.A yarn feeder F shown in Figs. 1 and 2 is, for example, a weft feeder for a loom and has a manual equipment or automated or semi-automated threading a new thread.

Das Fadenliefergerät F weist ein massives Gehäuse 1 mit einem gehäusefesten Ausleger 2 auf. In der Unterseite des Auslegers 2 ist als Einfädeleinrichtung T eine Führung 3 vorgesehen, die entweder zum Führen einer Einfädelnadel oder eines einen neuen Faden durch das Fadenliefergerät F transportierenden Luftstroms nutzbar ist.The yarn feeding device F has a solid housing 1 with a housing-fixed Outrigger 2 on. In the bottom of the boom 2 is as Einfädeleinrichtung T a Guide 3 is provided, either for guiding a threading needle or a new thread through the yarn feeding device F transporting air flow usable is.

In einem Hohlraum 5 des Gehäuses 1 ist ein Permanentmagnetmotor PM montiert, der als Antrieb eines Fadenführelements E dient, mit dem ein in Fig. 1 von links einlaufender, nicht gezeigter Faden durch das Fadenführelement E hindurch bis auf eine Speicherfläche eines Speicherkörpers D bringbar ist, um einen nicht gezeigten Fadenvorrat zu formen, aus dem der Faden in Fig. 1 nach rechts zum Verbrauch abgezogen wird.In a cavity 5 of the housing 1, a permanent magnet motor PM is mounted, serving as a drive of a thread guide element E, with which a in Fig. 1 from the left incoming, not shown thread through the thread guide E through to one Memory surface of a storage body D can be brought to a thread supply, not shown to form, from which the thread in Fig. 1 to the right for consumption deducted becomes.

Der Permanentmagnetmotor PM besteht aus einem im Gehäuse 1 festgelegten Stator S und einem Rotor R, der im Stator S auf einer Motorwelle W angebracht ist, die in Lagerungen 4 im Gehäuse drehgelagert ist, und den Speicherkörper D trägt. Im Gehäuse 1 bzw. im Gehäuseausleger 2 ist eine Steuerungselektronik C für den Permanentmagnetmotor PM angeordnet, die über eine Verbindung 6 mit dem Permanentmagnetmotor PM verbunden ist Ferner kann ein Drehpositionssensor H vorgesehen sein, z.B. ein Hallsensor, der im Gehäuse 1 angeordnet ist und die Drehposition des Fadenführelements E abtastet und beispielsweise ein Signal generiert und Ober eine Verbindung 9 an die Steuerungselektronik C übermittelt wenn das Fadenführelement E in der in Fig. 1 gezeigten, auf die Führung 3 der Einfädeleinrichtung T ausgerichteten Einfädelposition angelangt ist.The permanent magnet motor PM consists of a fixed in the housing 1 stator S and a rotor R, which is mounted in the stator S on a motor shaft W, in Bearings 4 is rotatably mounted in the housing, and the storage body D carries. In the case 1 or in the housing extension 2 is a control electronics C for the permanent magnet motor PM arranged, via a connection 6 with the permanent magnet motor Further, a rotational position sensor H may be provided be, e.g. a Hall sensor, which is arranged in the housing 1 and the rotational position of the Yaw element E scans and generates, for example, a signal and upper one Connection 9 transmitted to the control electronics C when the yarn guide E in the one shown in Fig. 1, on the guide 3 of the threading T aligned Threading position has arrived.

Der Speicherkörper D ist auf der Motorwelle W auf nicht gezeigte Weise um deren Achse X drehbar gelagert Er wird durch im Gehäuse 1 angeordnete Permanentmagneten 7, die mit im Speicherkörper D angeordneten Permanentmagneten 8 über das Fadenführelement E hinweg zusammenarbeiten, am Mitdrehen mit der Motorwelle W gehindert (Stationärer Speicherkörper). Die Motorwelle W ist zumindest in ihrem linken Endabschnitt als Hohlwelle ausgebildet (nicht gezeigt). Das Fadenführelement E ist in diesem Fall in eine sogenannte Wickelscheibe integriert und von einem von der Motorwelle W schräg nach außen verlaufenden Wickelrohr gebildet.The storage body D is on the motor shaft W in a manner not shown to the latter Axis X is rotatably mounted It is arranged in the housing 1 permanent magnet 7, which is arranged in the storage body D permanent magnet 8 via the Working together thread guide element E, the co-rotation with the motor shaft W hindered (stationary storage body). The motor shaft W is at least in its left End portion formed as a hollow shaft (not shown). The thread guide E is integrated in this case in a so-called winding disk and by one of the Motor shaft W obliquely outwardly extending winding tube formed.

In Fig. 2 ist der auf der Motorwelle W drehfest angebrachte Rotor R mit einer Bestückung mehrerer in Umfangsrichtung verteilter, gegebenenfalls unterschiedlich beabstandeter, Permanentmagneten 11 erkennbar. Der Stator S besitzt in Umfangsrichtung verteilte Polkeme 12, zwischen denen Hohlräume 13 für nicht gezeigte Windungen oder Wicklungen vorliegen.In Fig. 2, the rotatably mounted on the motor shaft W rotor R with a fitting several distributed in the circumferential direction, possibly different spaced, permanent magnet 11 recognizable. The stator S has in the circumferential direction distributed Polkeme 12, between which cavities 13 for turns, not shown or windings.

Aus der magnetischen Zusammenwirkung zwischen den Permanentmagneten 11 und den Polkemen 12, entsteht der Effekt, dass der Rotor R innerhalb einer vollen Umdrehung mehrere stabile Relativ-Drehlagen DLS und entsprechend viele instabile Relativdrehlagen hat Aus einer instabilen Drehlage dreht sich der Rotor bei stromlosem Permanentmagnetmotor PM unkontrolliert in der einen oder der anderen Drehrichtung selbsttätig jeweils bis in eine stabile Relativ-Drehlage.From the magnetic interaction between the permanent magnets 11 and Polkemen 12, the effect arises that the rotor R within a full turn several stable relative rotational positions DLS and correspondingly many unstable Relative rotational positions has changed From an unstable rotational position, the rotor rotates when de-energized Permanent magnet motor PM uncontrolled in one or the other direction of rotation each automatically up to a stable relative rotational position.

Eine stabile Relativ-Drehlage ist mit den beiden zueinander weisenden Pfeilen bei DLS angedeutet In dieser stabilen Relativ-Drehlage DLS nimmt die Motorwelle W eine Soll-Drehposition Y ein, in welcher das Fadenführelement E seine mit Z angedeutete Einfädelposition hat und auf die Führung 3 der Einfädefvorrichtung T ausgerichtet ist Damit die stabile Relativ-Drehlage DLS und die davon abhängende Soll-Drehposition Y der Motorwelle mit der Einfädelposition Z des Fadenführelements E korrelieren, ist in Fig. 2 der Stator S des Permanentmagnetmotors PM in einer ganz bestimmten Drehposition im Gehäuse 1 festgelegt Zu diesem Zweck sind über den Umfang des Stators verteilt sind mehrere Eingriffsstellen 14, z.B. Vertiefungen oder Längsnuten, geformt In eine dieser Eingriffsstellen 14 ist ein Eingriffselement 15 des Gehäuses 1 zum Eingriff gebracht Das Eingriffselement 15 ist beispielsweise eine Passschraube 16, die durch eine Gewindebohrung 17 im Gehäuse 1 eingeschraubt wird. Die Gewindebohrung 17 befindet sich zweckmäßigerweise an der dem Gehäuseausleger 2 in Bezug auf die Achse X diametral gegenüberliegenden Gehäuseunterseite 10. Von den mehreren Eingriffsstellen 14 kann wahlweise jede zur Zusammenarbeit mit dem Eingriffselement 15 benutzt werden.A stable relative rotational position is with the two arrows pointing to each other DLS indicated In this stable relative rotational position DLS, the motor shaft W takes a Target rotational position Y, in which the yarn guide E its indicated by Z. Threading has and aligned with the guide 3 of the Einfädefvorrichtung T. Thus, the stable relative rotational position DLS and the dependent rotational position dependent therefrom Y of the motor shaft with the threading Z of the yarn guide E in FIG. 2, the stator S of the permanent magnet motor PM is in one whole certain rotational position in the housing 1 set for this purpose are on the Distributed circumferentially of the stator are a plurality of engagement points 14, e.g. Depressions or Longitudinal grooves, formed in one of these engagement points 14 is an engagement member 15 of the Housing 1 brought into engagement The engagement element 15 is for example a Bolt 16, which is screwed through a threaded hole 17 in the housing 1 becomes. The threaded bore 17 is expediently located on the housing extension 2 with respect to the axis X diametrically opposite housing bottom 10. Of the multiple points of engagement 14, either may be for cooperation be used with the engagement member 15.

In Relation zu der auf die Achse X in Fig. 2 gegebenen Lage der Einfädeleinrichtung T, der Soll-Drehposition Y der Motorwelle W bei auf die Einfädeleinrichtung T ausgerichtetem Fadenführelement E, der Anordnung der Permanentmagneten 11 am Rotor R und den Positionen der Polkempaare 12 des Stators S, und schließlich der gewählten Position des Eingriffselements 15 im Gehäuse, sind die Eingriffsstellen 14 so am Umfang des Stators S angeordnet, dass sich bei ordnungsgemäßem Eingriff zwischen einer Eingriffsstelle 14 und dem Eingriffselement 15 das Fadenführelement E präzise auf die Einfädeleinrichtung T ausgerichtet ist, wenn auch der Rotor R gleichzeitig eine seiner stabilen Relativ-Drehlagen, zB. DLS, eingenommen hat.In relation to the given on the axis X in Fig. 2 position of the threading device T, the target rotational position Y of the motor shaft W aligned with the threading T Yarn guiding element E, the arrangement of the permanent magnets 11 on the rotor R and the positions of Polkempaare 12 of the stator S, and finally the selected Position of the engagement element 15 in the housing, the engagement points 14 are so arranged on the circumference of the stator S, that, with proper engagement between an engagement point 14 and the engagement member 15, the thread guide E is precisely aligned with the threading device T, although the rotor R at the same time one of its stable relative rotational positions, eg. DLS, has taken.

Da bei einem Permanentmagnetmotor die Steuerungselektronik C Ober die relative Winkelposition des Rotors R im Stator S informiert ist, kann eine Motorstopproutine programmiert sein, mit der zum Anhalten des Permanentmagnetmotors PM der Rotor R genauso weit gedreht wird, bis er die stabile Relativ-Drehlage DLS erreicht, in der das Fadenführelement E auf die Einfädeleinrichtung T ausgerichtet ist.Since in a permanent magnet motor, the control electronics C Ober the relative Angular position of the rotor R is informed in the stator S, can a motor stop Proutine programmed to stop the permanent magnet motor PM, the rotor R is turned as far until it reaches the stable relative rotational position DLS, in the the thread guide element E is aligned with the threading device T.

Alternativ oder additiv kann auch das Bestätigungssignal des in Fig. 1 gezeigten Drehpositionssensors H als Referenz benutzt werden, um den Rotor R beim Anhalten des Permanentrnagnetmotors PM bis in eine stabile Drehlage DLS zu drehen und der Sensor H das Erreichen der Soll-Position Y der Motorwelle W bestätigt, wobei auch dann der Rotor die vorbestimmte stabile Relativ-Drehlage eingenommen hat.Alternatively or additionally, the confirmation signal of the one shown in FIG Rotary position sensor H can be used as a reference to the rotor R when stopping of the permanent magnet motor PM to turn into a stable rotational position DLS and the Sensor H confirms the achievement of the desired position Y of the motor shaft W, and also then the rotor has assumed the predetermined stable relative rotational position.

In der in den Fig. 1 und 2 gezeigten Ausführungsform ist die Drehposition des Stators S so vorbestimmt, dass die vorerwähnten Resultate erzielt werden. Alternativ wäre es möglich, den Rotor R relativ zur Motorwelle W zu verdrehen und dann festzulegen, wenn bei gegebener Einbaulage des Stators S und gegebener Einfädelposition Z des Fadenführelements die gewünschte stabile relative Drehlage DLS des Rotors vorliegt Als weitere Alternative wäre es möglich, das Fadenführelement E relativ zur Motorwelle W zu verdrehen und dann festzulegen, wenn bei der vorliegenden Einbaulage des Stators S im Gehäuse 1 die Einfädelposition Z bei einer stabilen relativen Drehlage des Rotors R erreicht ist.In the embodiment shown in Figs. 1 and 2, the rotational position of the stator S predetermined so that the above-mentioned results are achieved. Alternatively it would be possible to rotate the rotor R relative to the motor shaft W and then set if given installation position of the stator S and given threading Z of Thread guide element the desired stable relative rotational position DLS of the rotor is present As a further alternative, it would be possible, the thread guide E relative to the motor shaft W to twist and then set, if at the present installation position of the stator S in the housing 1, the threading Z at a stable relative rotational position of the rotor R is reached.

Claims (10)

  1. Yarn feeding device (F), comprising a housing (1) containing an electric motor, in which housing the stator (S) is provided such that it cannot be rotated while the rotor (R) is provided on a rotatably supported motor shaft (W), a yarn guiding element (E) fixed to the motor shaft for rotation about the axis (X) of the motor shaft (W), and a threading assembly (T) fixed to the housing to which the yarn guiding element (E) is associated in spatial relation in a target rotary position (Y) of the motor shaft (W), the target rotary position (Y) being related to the housing (1), characterised in that the electric motor is a permanent magnet motor (PM) having pole cores (13) in the stator (S), the pole cores (13) carrying windings, and having permanent magnets (11) in the rotor (R), that the permanent magnet motor (M) has a stable and unstable relative rotational positions of the rotor (R) in the stator (S) caused by magnet forces in a de-energised state, and that the stator (S), the rotor (R) and the yarn guiding element (E) in relation to the axis (X) are provided relative to the housing (1) such that in one of the stable relative rotary positions (DLS) of the rotor (R) the motor shaft (W) occupies the target rotary position (Y).
  2. Yarn feeding device according to claim 1, characterised in that in case of a fixed interrelation between the motor shaft (W) and the rotor (R) and the yarn guiding element (E) exclusively the rotary position of the stator (S) in the housing (1) is set to the target rotary position (Y).
  3. Yarn feeding device according to claim 1, characterised in that a form fit and/or force fit rotary positioning device (E) is provided between the housing (1) and the stator (S) and/or between the rotor (R) and the motor shaft (W) and/or between the motor shaft (W) and the yarn guiding element (E), respectively.
  4. Yarn feeding device according to claim 2, characterised in that the stator (S) has in at least one circumferential location an engagement portion (14), and that the housing (1) has an engaging element (15) which is engageable into the engagement portion for the rotary positioning of the stator (S).
  5. Yarn feeding device according to claim 4, characterised in that the engagement portion (14) is a depression or a longitudinal groove in the outer peripheral of the stator (S), and that the engagement element (15) is a projection, preferably a set screw (16) in the housing (1).
  6. Yarn feeding device according to claim 4, characterised in that there is provided access to the engagement element (15) at the housing lower side (10) which is opposite to the housing bracket (2) in relation to the axis (X).
  7. Yarn feeding device according to claim 4, characterised in that a number of engagement portions (14) corresponding to the number of the pole core pairs (13) is provided with equal circumferential interspaces at the stator (S), and that the engagement element (15) is engageable selectively into one of the engagement portions (14).
  8. Yarn feeding device as in at least one of the preceding claims, characterised in that the threading assembly (T) is a guidance (3) provided within a bracket (2) fixed to the housing, and that the exit of a winding tube forming the yarn guiding element (E) at the motor shaft (W) is aligned in the target rotary position (Y) with the guidance (3).
  9. Yarn feeding device according to claim 1, characterised in that in the control electronics (C) of the permanent magnet motor (PM), the control electronics (C) containing a microprocessor, a rotational angle information of the rotor (R) continuously are provided, and that the control electronics (C) has a programmed motor stop routine for stopping the rotor (R) in that stable rotary position (DLS) which is correlated to the target rotary position (Y) of the motor shaft (W).
  10. Yarn feeding device as in at least one the preceding claims, characterised in that a rotary position sensor (H), e.g. a Hall sensor, is provided in the housing (1) for the motor shaft (W) and/or for the yarn guiding element (E), that the rotary position sensor (H) has a signal transmission connection with the control electronics (C) of the permanent magnet motor (PM), and that a reference signal can be generated by the rotary position sensor (H) for stopping the rotor (R) in the stable rotary position (DLS) which is correlated to the target rotary position (Y) of the motor shaft (W).
EP02718128A 2001-02-19 2002-02-13 Thread supplying device Expired - Lifetime EP1361997B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10107688 2001-02-19
DE10107688A DE10107688A1 (en) 2001-02-19 2001-02-19 Yarn feeder
PCT/EP2002/001512 WO2002066353A1 (en) 2001-02-19 2002-02-13 Thread supplying device

Publications (2)

Publication Number Publication Date
EP1361997A1 EP1361997A1 (en) 2003-11-19
EP1361997B1 true EP1361997B1 (en) 2005-01-19

Family

ID=7674549

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02718128A Expired - Lifetime EP1361997B1 (en) 2001-02-19 2002-02-13 Thread supplying device

Country Status (6)

Country Link
US (1) US7059556B2 (en)
EP (1) EP1361997B1 (en)
KR (1) KR100537989B1 (en)
CN (1) CN1239367C (en)
DE (2) DE10107688A1 (en)
WO (1) WO2002066353A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0103196D0 (en) 2001-09-24 2001-09-24 Iropa Ag Fadenliefergerät
ITTO20060015A1 (en) * 2006-01-11 2007-07-12 Lgl Electronics Spa NEGATIVE PLOT FEEDER WITH INCORPORATED POSITION DETECTOR
DE102021115596B3 (en) * 2021-06-16 2022-05-12 Memminger-IRO Gesellschaft mit beschränkter Haftung thread feeding device

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4116397A (en) * 1973-12-06 1978-09-26 Papst Motoren Kg Drive arrangement for yarn storage and dispensing units
FR2523162A1 (en) * 1982-03-08 1983-09-16 Cheboxarsky Mashstr Zavod Drum-type weft accumulator - with low-inertia flyer mechanism driven by electric motor of double-cylindrical construction
IT1217339B (en) * 1988-02-11 1990-03-22 Roy Electrotex Spa WIRE FEEDER FOR TEXTILE MACHINES
DE4007131C2 (en) * 1990-03-07 1999-12-30 Iro Patent Ag Baar Delivery device for running threads
IT1259551B (en) * 1992-04-22 1996-03-20 Lgl Electronics Spa ELECTRO-PNEUMATIC DEVICE FOR AUTOMATIC THREADING OF WEFT FEEDERS WITH TEXTILE MACHINES AND WEFT FEEDER INCORPORATING SAID DEVICE
DE4336312C2 (en) * 1993-10-25 2003-09-25 Schlafhorst & Co W Device for winding packages
WO1997035793A1 (en) * 1996-03-26 1997-10-02 Iro Ab Proximity sensor and yarn feeder with a proximity sensor
IT1307714B1 (en) * 1999-05-07 2001-11-14 Lgl Electronics Spa METHOD AND DEVICE FOR AUTOMATIC ADJUSTMENT OF THE ASYNCHRONOUS MOTOR HANDLING ARM OF THE ROLLER ARM IN THE APPLIANCES
DE19941889A1 (en) * 1999-09-02 2001-03-08 Iro Patent Ag Baar Thread delivery device
DE10006142A1 (en) * 2000-02-11 2001-08-16 Iro Patent Ag Baar Feeder for supplying twist-free yarn, e.g. weft feeder for loom, comprises twist stop to control twist distribution on feed drum
DE10249641A1 (en) * 2002-10-24 2004-05-06 Iropa Ag Sensor system and method for vector control

Also Published As

Publication number Publication date
DE50202042D1 (en) 2005-02-24
US20040108400A1 (en) 2004-06-10
KR100537989B1 (en) 2005-12-20
KR20030076689A (en) 2003-09-26
US7059556B2 (en) 2006-06-13
CN1239367C (en) 2006-02-01
WO2002066353A1 (en) 2002-08-29
EP1361997A1 (en) 2003-11-19
CN1491177A (en) 2004-04-21
DE10107688A1 (en) 2002-08-29

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