EP1239068B1 - Drive for a heald frame of a weaving machine - Google Patents

Drive for a heald frame of a weaving machine Download PDF

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Publication number
EP1239068B1
EP1239068B1 EP02001555A EP02001555A EP1239068B1 EP 1239068 B1 EP1239068 B1 EP 1239068B1 EP 02001555 A EP02001555 A EP 02001555A EP 02001555 A EP02001555 A EP 02001555A EP 1239068 B1 EP1239068 B1 EP 1239068B1
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EP
European Patent Office
Prior art keywords
drive
shaft
motor
drive according
rotor
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EP02001555A
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German (de)
French (fr)
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EP1239068A1 (en
Inventor
Valentin Krumm
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Lindauer Dornier GmbH
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Lindauer Dornier GmbH
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D03C13/02—Shedding mechanisms not otherwise provided for with independent drive motors
    • D03C13/025—Shedding mechanisms not otherwise provided for with independent drive motors with independent frame drives
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00—Shedding mechanisms not otherwise provided for
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C5/00—Cam or other direct-acting shedding mechanisms, i.e. operating heald frames without intervening power-supplying devices
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03J—AUXILIARY WEAVING APPARATUS; WEAVERS' TOOLS; SHUTTLES
    • D03J1/00—Auxiliary apparatus combined with or associated with looms
    • D03J1/008—Cooling systems

Definitions

  • the invention relates to a drive for the heddle shafts of a loom after the Features of the preamble of claim 1 and 2.
  • These drives can be categorized, namely in the category of rotary DC drives and in the category of so-called linear DC drives.
  • the rotary DC drives are motors that are in their Direction of rotation, e.g. be operated in an oscillating manner, reversible to the Oscillating reverse movement via so-called lever and linkage in one To transmit oscillating linear motion on the shedding means.
  • JP 11-124751 A a drive for shed forming means with shank base known.
  • the rotational movement of the drive is via gear means and a eccentrically mounted one-armed lever on the off lever and train or.
  • a drive for the shedding means consisting of a rotor and stator having electrically controllable external rotor motor.
  • the rotor of this motor has on its outer circumference teeth, which mesh with the rack formed as longitudinal struts of the heald frames.
  • a similar kind of drive is also known from DE 196 51 799 A1.
  • JP 09-078389 A a shaft drive without shank support is known.
  • the drive consists of an electric motor whose rotational movement by means of a in kind of Crank drive trained drive converted into an oscillating linear motion and transferred to the Webschaft.
  • Such a drive solution further discloses the JP 11-286850.
  • a drive device eg for the shed forming means of a loom, which drive device consists of actuators, which are designed as Kreissektor- or Quasirotations- or DC motors with a common magnetic stator flux of some or all actuators, which comes from several permanent magnets , Each of these permanent magnets is divided into at least two opposite polarized sectors and spaced from adjacent permanent magnets in a non-magnetic carrier.
  • the permanent magnets are separated from each other and arranged through an air gap, wherein a moving part is incorporated, which has a non-magnetic and electrically non-conductive support and at least one thin coil.
  • the transmission or conversion of the movement from the moving part to the working element is preferably made possible by a connecting link.
  • a position sensor associated with each actuator serves as a position sensor.
  • the drive device between the motion transmission part of the linear DC motor and the relevant shedding means here also requires a special shaft or at least suitable precautions, which differ from the conventional heddles.
  • European patent application EP 0 879 990 A1 discloses a rocker arm system acted upon by linear motors as the drive for the shed forming means of a weaving machine.
  • the disadvantage here is that the position of the shaft connections is different from Webschaft to Webschaft. This eliminates the possibility to exchange the individual shafts with each other, which is particularly of considerable disadvantage in the spare parts storage.
  • European Patent Application EP 0 825 285 A1 discloses an arrangement of compartmentalizing means which is driven by means of linear motors.
  • This arrangement has the disadvantage that both a superstructure and a substructure for the shedding means is required.
  • the drive takes place in so-called quad groups, so that the shafts must have differently positioned drive connections, so differently positioned shaft connections.
  • the disadvantage here is a difficult work in the Vortechnik and the assignment of the shafts during a shaft change.
  • the superstructure represents a certain confusion for each weaving operation.
  • the insertion of the shafts in the weaving machine, as well as the removal is usually not without problems, at least not in comparison with conventional heald frames.
  • the drive should not be designed as a crank mechanism. Furthermore, the drive should be suitable be, via a freely programmable control various binding reports, different shank strokes and different movement profiles of the heald shafts too realize.
  • the drive according to the invention advantageously makes it possible to carry out any movement profiles with regard to the compartment opening profile and the compartment closure as well as any desired compartment strokes.
  • the technical conclusion can be assigned to color and / or other parameters of the weft yarn as well as the binding.
  • With the drive according to the invention a cost reduction both material and time is realized by dispensing with shank beams. Maintenance and servicing measures, in particular the bearings integrated in the deflection levers, are eliminated. Without significant effort all available on the market looms can be retrofitted, because the conventional heald frames can be connected with the conventional shaft couplings to the inventively designed drives. Further advantages result from the features of the dependent claims and from the following description of the embodiments.
  • FIG. 1 shows a conventional heald 1.
  • the heald 1 is, as is generally known, equipped with first coupling means 2.
  • the coupling means 2 are arranged on the shaft side supports 1a in a known manner.
  • further shank connections 2 may be present, as shown in FIG.
  • Only a central, central shaft connection 2 can be present, as is known from JP 09-078389 A, if it involves weaving machines of small weaving width, for example with a width of less than 1.5 m.
  • the push-pull rods 6 are not hinged to so-called motion lever of so-called Schaftunterratn in Figure 1, but attached to a suitable location of the oscillating in its rotational direction reversible rotor 4a of an electrically controllable motor 4.
  • FIG. 2 shows shed forming means consisting of at least two heald frames 1. Furthermore, a multiple arrangement of the motors 4 bearing axes 5 is shown. A multiple arrangement of the axes 5 is also shown in FIG. The multiple arrangement of the axes 5 disclosed in FIG. 3 is important when a predetermined pitch T between the individual heald frames, see also FIG. 2, is a 12 mm pitch that is less than the axial dimension of the motor 4.
  • each motor 4 acting on one shaft connection 2 is 24 mm
  • the axial dimension of the construction can be 36 mm.
  • the axles 5 are machine-fixed axles which support the stator 4b of the motor 4.
  • the axes 5 are designed as splined axes, which receive the motors 4 in a modular manner. Further, the axes are formed as hollow axes, with an axial passage 5a provided, which passes coolant for cooling the motors 4.
  • FIG. 4 shows the structure of the previously mentioned motor 4.
  • the operation of the motor 4 corresponds to that of a conventional DC or AC motor, with the difference that the rotor 4a is an external rotor which, according to its control, an oscillating reversible rotational movement, realized according to the double arrow 9, and this rotational movement on a suitable the outer periphery existing means 4d converts into a pivoting movement.
  • At the free end of the means 4d an articulation point 4c is formed, on which the push-pull rod 6 according to the figures 1 to 3 and 7 attacks.
  • the stator 4b of the motor 4 carries, as is known, the windings 4e shown symbolically. According to the designed as splined profile circumference of the axis 5, the stator 4b has a correspondingly shaped recording 4f.
  • the motor 4 is, as will be apparent hereinafter, so a shaftless DC or AC motor.
  • the drive illustrated in FIG. 5 is designed as a circular sector linear motor 11 as an alternative to the aforementioned rotary drive.
  • the basic structure and the operation of such a circular sector linear motor is known for example from DE 198 49 728 A1, so that it need not be discussed in detail.
  • the rotor 11a of the linear motor 11 is designed in the manner of a pivotally mounted one-armed lever, at its free end a pivot point 11c is provided for connection to a push-pull rod 6 according to FIG.
  • the stator 11 b of the linear motor 11 is rotatably connected in the operating state with an axis 5, corresponding to the previous versions of the rotary drive 4.
  • the inner ring 12a of a roller bearing 11 which meets the rotor 11a on the outer ring 12b is non-rotatably connected to an axle 5.
  • the inner ring 12a of the rolling bearing 12 is provided with wedge-shaped recesses which are formed according to the wedges of the splined axis 5.
  • FIG. 6 shows a plan view of the motors 4 or 11 arranged on the axles 5 in the first arrangement plane according to FIG.
  • the stators 4b or 11b of the motors 4 or 11 are here arranged in a modular manner on each axis 5 and connected in rotation therewith. Taking into account the already mentioned shank division T, three motors 4, 11 on one side of a heald 1 are effective here. The same number of motors 4, 11 is effective on the other side of the heald.
  • FIG. 7 it is made clear that in a first arrangement plane at least two Motors 4 and in a second arrangement level, at least one further motor 4 on a and the same side of a heald shaft 1 via the corresponding pull-push rod 6 can be effective.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Holders For Apparel And Elements Relating To Apparel (AREA)

Abstract

A weaving loom has a drive for a heald shaft with a two-part link to a pushrod. The heald shaft drive is an electric motor with a rotor and stator. The electric motor (4) rotor (4a) has especially an oscillating continual reverse action operation. Each rotor (4a) forms part of an external rotor motor with a swivel arm (4d). The swivel arm has an articulated link point (4c) located outside the motor axial-geometric centreline (8). The link point (4c) is coupled to a pushrod (6) acting on the heald shaft (1). The modular motors are positioned as convenient on a fixed axle (5). The drive for each heald shaft is an electrically controlled linear motor (11) with a reverse-action rotor (11a). The rotor (11a) swivels on the fixed axle (5). The motor is a direct current or alternating current sector motor. If the assembly may have more than one fixed axle (5) to accommodate a number of motors.

Description

Die Erfindung betrifft einen Antrieb für die Webschäfte einer Webmaschine nach den Merkmalen des Oberbegriffs von Patentanspruch 1 und 2.The invention relates to a drive for the heddle shafts of a loom after the Features of the preamble of claim 1 and 2.

Antriebe für die Webschäfte von Webmaschinen, die auf sogenannte Schaft- oder Exzentermaschinen verzichten, sind bekannt.Actuators for the healds of looms, which are referred to as shank or Eccentric machines dispense, are known.

Diese Antriebe lassen sich kategorisieren, und zwar in die Kategorie der Rotations-Gleichstromantriebe und in die Kategorie der sogenannten Linear-Gleichstromantriebe.These drives can be categorized, namely in the category of rotary DC drives and in the category of so-called linear DC drives.

Bei den Rotations-Gleichstromantrieben handelt es sich um Motoren, die in ihrer Drehrichtung, z.B. in oszillierender Weise, umkehrbar betrieben werden, um die oszillierende Umkehrbewegung über sogenannte Umlenkhebel und Gestänge in eine oszillierende Linearbewegung auf die Fachbildemittel zu übertragen.The rotary DC drives are motors that are in their Direction of rotation, e.g. be operated in an oscillating manner, reversible to the Oscillating reverse movement via so-called lever and linkage in one To transmit oscillating linear motion on the shedding means.

Dabei kann weiter unterschieden werden in sogenannte Direkt-Antriebe oder in Antriebe, die mit dem Fachbildemittel über sogenannte Schaftunterzüge verbunden sind.
Ein derartiger Antrieb mit Schaftunterzug ist z.B. aus der DE 196 51 799 A1 und der JP 07-324247 A bekannt.It can be further distinguished in so-called direct drives or in drives that are connected to the shedding means on so-called shank beams.
Such a drive with shank support is known for example from DE 196 51 799 A1 and JP 07-324247 A.

Ferner ist aus der JP 11-124751 A ein Antrieb für Fachbildemittel mit Schaftunterzug bekannt. Die Rotationsbewegung des Antriebes wird über getriebliche Mittel und einen exzentrisch gelagerten einarmigen Hebel auf den aus Umlenkhebel und Zug-bzw. Schubstangen bestehenden Schaft-Unterzug in eine eine wechselnde Richtung ausführende Hubbewegung für jeden Webschaft umgewandelt.Furthermore, from JP 11-124751 A a drive for shed forming means with shank base known. The rotational movement of the drive is via gear means and a eccentrically mounted one-armed lever on the off lever and train or. Push rods existing shank beam in an executing a changing direction Hubbewegung for each Webschaft converted.

Aus der JP 11-350285 ist ein Antrieb für die Fachbildemittel bekannt, bestehend aus einem einen Rotor und Stator aufweisenden elektrisch ansteuerbaren Außenläufer-Motor.
Der Rotor dieses Motors besitzt auf seinem Außenumfang Verzahnungen, die mit den als Zahnstange ausgebildeten Längsstreben der Webschäfte kämmen. Die Fachbildemittel besitzen hier keine Unterzüge.
Ein ähnlich gearteter Antrieb ist ferner aus der DE 196 51 799 A1 bekannt. From JP 11-350285 a drive for the shedding means is known, consisting of a rotor and stator having electrically controllable external rotor motor.
The rotor of this motor has on its outer circumference teeth, which mesh with the rack formed as longitudinal struts of the heald frames. The Fachbildemittel own here no beams.
A similar kind of drive is also known from DE 196 51 799 A1.

Von erheblichem Nachteil ist hier, dass die Webmaschinen mit Spezial-Fachbildemittel, also Spezialschäften ausgestattet sein müssen, oder zumindest im Falle der DE 196 51 799 die Webschäfte entsprechende Vorkehrungen aufweisen müssen. Dies würde eine Abkehr von den konventionellen Schäften bedeuten. Alle bisher auf dem Markt vorhandenen Webmaschinen wäre mit dieser vorbekannten Antriebsvariante nicht mehr einsetzbar.Of considerable disadvantage here is that the weaving machines with special Fachbildemittel, ie Be equipped special shafts, or at least in the case of DE 196 51 799 the Heald must have appropriate provisions. This would be a departure from mean the conventional shafts. All previously available on the market Weaving machines would no longer be used with this known drive variant.

Bekannt ist aus der DE 198 21 094 A1 ein elektromagnetischer Mechanismus zum indirekten oder zum direkten Schaftantrieb.
Beim indirekten elektromagnetischen Schaftantrieb erfolgt die Hubbewegung der Schäfte über den sogenannten Schaftunterzug, während bei einem direkt wirkenden elektromagnetischen Antrieb auf bewegungsumlenkende Mittel, wie z.B. Umlenkhebel, verzichtet wird.
Der offenbar auf der Basis von Spulen und Spulenkem aufgebaute Antrieb gibt dem Fachmann keine hinreichende Anleitung, wie die in diesem Dokument genannten Vorteilswirkung erzielt werden kann.From DE 198 21 094 A1 an electromagnetic mechanism for indirect or direct shaft drive is known.
In the case of the indirect electromagnetic shaft drive, the lifting movement of the shafts takes place via the so-called shaft support, while in the case of a direct-acting electromagnetic drive, movement-deflecting means, such as, for example, a reversing lever, are dispensed with.
The drive, apparently constructed on the basis of bobbins and bobbins, does not give the skilled person sufficient guidance as to how the advantage effect mentioned in this document can be achieved.

Aus der JP 09-078389 A ist ein Schaftantrieb ohne Schaftunterzug bekannt. Der Antrieb besteht aus einem Elektromotor, dessen Rotationsbewegung mittels eines in Art eines Kurbeltriebes ausgebildeten Antriebes in eine oszillierende Linearbewegung umgewandelt und auf den Webschaft übertragen wird. Eine solche Antriebslösung offenbart ferner die JP 11-286850.From JP 09-078389 A a shaft drive without shank support is known. The drive consists of an electric motor whose rotational movement by means of a in kind of Crank drive trained drive converted into an oscillating linear motion and transferred to the Webschaft. Such a drive solution further discloses the JP 11-286850.

Aus der Kategorie Gleichstrom-Linearmotor als Antriebsvorrichtung für Fachbildemittel von Webmaschinen ist ferner die DE 198 49 728 A1 bekannt.From the category DC linear motor as a drive device for shed forming means of Weaving machines is also known from DE 198 49 728 A1.

In diesem Dokument wird eine Antriebsvorrichtung, z.B. für die Fachbildemittel einer Webmaschine offenbart, welche Antriebsvorrichtung aus Aktuatoren besteht, die als Kreissektor- bzw. Quasirotations- oder Gleichstrom-Motoren mit einem gemeinsamen magnetischen Statorfluss einiger oder aller Aktuatoren ausgebildet sind, welcher von mehreren Permanentmagneten stammt.
Jeder von diesen Permanentmagneten ist in mindestens zwei entgegengesetzten polarisierte Sektoren geteilt und in einem Abstand zu benachbarten Permanentmagneten in einem nicht magnetischen Träger angeordnet. In this document, a drive device, eg for the shed forming means of a loom, is disclosed, which drive device consists of actuators, which are designed as Kreissektor- or Quasirotations- or DC motors with a common magnetic stator flux of some or all actuators, which comes from several permanent magnets ,
Each of these permanent magnets is divided into at least two opposite polarized sectors and spaced from adjacent permanent magnets in a non-magnetic carrier.

Die Permanentmagnete sind voneinander getrennt und durch einen Luftspalt, worin ein Bewegungsteil eingebaut ist, welches einen nicht magnetischen und elektrisch nicht leitenden Träger und mindestens eine dünne Spule aufweist, angeordnet.
Die Übertragung oder Umwandlung der Bewegung vom Bewegungsteil an das Arbeitselement wird bevorzugt durch ein Verbindungsglied ermöglicht.
Ein Positionssensor, der jedem Aktuator zugeordnet ist, dient als Lagegeber.
Die Antriebsvorrichtung zwischen dem Bewegungsübertragungsteil des Linear-Gleichstrommotors und dessen betreffenden Fachbildemittel erfordert auch hier einen Spezial-Schaft oder zumindestens geeignete Vorkehrungen, die von den konventionellen Webschäften abweichen.The permanent magnets are separated from each other and arranged through an air gap, wherein a moving part is incorporated, which has a non-magnetic and electrically non-conductive support and at least one thin coil.
The transmission or conversion of the movement from the moving part to the working element is preferably made possible by a connecting link.
A position sensor associated with each actuator serves as a position sensor.
The drive device between the motion transmission part of the linear DC motor and the relevant shedding means here also requires a special shaft or at least suitable precautions, which differ from the conventional heddles.

Weitere Linear-Gleichstrommotoren als Antriebe für die Fachbildemittel sind aus JP 10-310947 A, JP 10-310948 A und aus JP 10-310949 A bekannt.
Auch hier erfordern die Antriebe Spezial-Schäfte, weil die Antriebe im Schaftrahmen des jeweiligen Webschaftes angeordnet sind.
Mit diesen technischen Lösungen ist der Nachteil verbunden, dass bei einem Artikel- oder Schaftwechsel das Schaftpaket mit dem Läufer der Linear-Gleichstrommotoren aus der Webmaschine gehoben werden muss, was bei erneutem Einsetzen des Schaftpakets zu Beschädigungen der Antriebe führen kann.
Ferner ist mit diesen Antrieben der Nachteil verbunden, dass bei einem Defekt des Motors der betreffende Schaft in seinen Führungen verklemmt und der Schaft dadurch sehr leicht beschädigt werden kann.
Darüber hinaus ist eine solche Antriebslösung nur für relativ schmale Webmaschinen geeignet, weil ein Mittelantrieb mit der gleichen Antriebskonzeption, wie mit den in den Schaftseitenstützen integrierten Antrieb, nicht möglich ist.
Ein weiterer Nachteil der in der JP 10-310949 A offenbarten Antriebslösung besteht darin, dass entweder die Webschäfte unterschiedlich große Längen aufweisen oder dass die Schäfte bei gleicher Länge zueinander seitlich versetzt in der Webmaschine angeordnet werden müssen. Eine solche Schaftanordnung erlaubt kein rationelles Arbeiten im Vorwerk.
Die bekannten Kettfaden-Einziehmaschinen müssten eigens dafür angepasst werden. Außerdem führt diese Antriebslösung zu relativ breiten Webmaschinen bei vergleichsweise geringer Webbreite.Further linear DC motors as drives for the shedding means are known from JP 10-310947 A, JP 10-310948 A and JP 10-310949 A.
Again, the drives require special shafts, because the drives are arranged in the shaft frame of the respective weaving shank.
With these technical solutions has the disadvantage that when a article or shaft change the shaft package with the runner of the linear DC motors must be lifted from the loom, which can lead to damage to the drives when re-inserting the shaft package.
Furthermore, with these drives has the disadvantage that in case of a defect of the engine of the shaft in question jammed in his guides and the shaft can be damaged very easily.
In addition, such a drive solution is only suitable for relatively narrow looms, because a center drive with the same drive design, as with the drive integrated in the shaft side supports, is not possible.
A further disadvantage of the drive solution disclosed in JP 10-310949 A is that either the heddle shafts have different lengths or that the shafts with the same length have to be arranged laterally offset from one another in the weaving machine. Such a shaft arrangement does not allow rational work in the Vorwerk.
The known warp threading machines would have to be specially adapted for this purpose. In addition, this drive solution leads to relatively wide looms with comparatively low weaving width.

Die europäische Patentanmeldung EP 0 879 990 A1 offenbart als Antrieb für die Fachbildemittel einer Webmaschine ein von Linear-Motoren beaufschlagtes Kipphebelsystem.
Nachteilig ist hierbei, dass die Position der Schaftanschlüsse von Webschaft zu Webschaft verschieden ist. Damit besteht nicht mehr die Möglichkeit, die einzelnen Schäfte untereinander auszutauschen, was insbesondere von erheblichem Nachteil in der Ersatzteil-Lagerhaltung ist.European patent application EP 0 879 990 A1 discloses a rocker arm system acted upon by linear motors as the drive for the shed forming means of a weaving machine.
The disadvantage here is that the position of the shaft connections is different from Webschaft to Webschaft. This eliminates the possibility to exchange the individual shafts with each other, which is particularly of considerable disadvantage in the spare parts storage.

Schließlich ist aus der europäischen Patentanmeldung EP 0 825 285 A1 eine Anordnung von Fachbildemitteln bekannt, die mittels Linearmotoren angetrieben ist.
Diese Anordnung besitzt den Nachteil, dass sowohl ein Oberbau als auch ein Unterbau für die Fachbildemittel erforderlich ist.
Der Antrieb erfolgt in sogenannten Vierer-Gruppen, so dass die Schäfte verschieden positionierte Antriebsverbindungen, also unterschiedlich positionierte Schaftanschlüsse besitzen müssen.
Nachteilig ist auch hier ein erschwertes Arbeiten im Vorwerk und bei der Zuordnung der Schäfte während eines Schaftwechsels.
Des weiteren stellt der Oberbau für jeden Webereibetrieb eine gewisse Unübersichtlichkeit dar. Das Einlegen der Schäfte in die Webmaschine, wie auch das Herausnehmen ist in der Regel nicht unproblematisch, zumindestens nicht im Vergleich mit konventionellen Webschäften.Finally, European Patent Application EP 0 825 285 A1 discloses an arrangement of compartmentalizing means which is driven by means of linear motors.
This arrangement has the disadvantage that both a superstructure and a substructure for the shedding means is required.
The drive takes place in so-called quad groups, so that the shafts must have differently positioned drive connections, so differently positioned shaft connections.
The disadvantage here is a difficult work in the Vorwerk and the assignment of the shafts during a shaft change.
Furthermore, the superstructure represents a certain confusion for each weaving operation. The insertion of the shafts in the weaving machine, as well as the removal is usually not without problems, at least not in comparison with conventional heald frames.

Vor dem Hintergrund des zitierten Standes der Technik ist es Aufgabe der Erfindung, einen Antrieb für die Fachbildemittel von Webmaschinen zu schaffen und derart in der Webmaschine anzuordnen, dass mit konventionellen Webschäften als Fachbildemittel und mit den bekannten Schaftschnellverschlüssen gearbeitet werden kann und dass auf konventionelle Schaftunterzüge mit Umlenkhebel zum Schaftantrieb verzichtet werden kann.Against the background of the cited prior art, it is an object of the invention to provide a To create drive for the shedding means of looms and so in the To arrange weaving machine that conventional weaving shafts as Fachbildemittel and can be worked with the known shaft quick release and that on Conventional shaft undercarriage with lever for shaft drive can be omitted.

Der Antrieb soll nicht als Kurbeltrieb ausgebildet sein. Ferner soll der Antrieb dafür geeignet sein, über eine frei programmierbare Ansteuerung verschiedene Bindungsrapporte, verschiedene Schafthübe und verschiedene Bewegungsprofile der Webschäfte zu realisieren.The drive should not be designed as a crank mechanism. Furthermore, the drive should be suitable be, via a freely programmable control various binding reports, different shank strokes and different movement profiles of the heald shafts too realize.

Erfindungsgemäß wird die Aufgabe durch die Merkmale der Patentansprüche 1 und 2 gelöst. According to the invention the object is achieved by the features of claims 1 and 2 solved.

Der erfindungsgemäße Antrieb ermöglicht in vorteilhafterweise beliebige Bewegungsprofile im Hinblick auf das Fachöffnungsprofil und den Fachschluß sowie beliebige Fachhübe auszuführen.
Der Fachschluss kann Farb- und/oder anderen Parametern des Schussgarns sowie der Bindung zugeordnet werden.
Mit dem erfindungsgemäßen Antrieb wird durch Verzicht auf Schaftunterzüge eine Kostenreduzierung sowohl material- als auch zeitseitig realisiert.
Instandhaltungs- und Wartungsmaßnahmen, insbesondere der in den Umlenkhebeln integrierten Lager entfallen.
Ohne nennenswerten Aufwand können alle auf dem Markt vorhandenen Webmaschinen nachgerüstet werden, weil die konventionellen Webschäfte mit den konventionellen Schaftkupplungen an die erfindungsgemäß ausgebildeten Antriebe angeschlossen werden können.
Weitere Vorteilswirkungen ergeben sich aus den Merkmalen der abhängigen Patentansprüche und aus der folgenden Beschreibung der Ausführungsbeispiele.The drive according to the invention advantageously makes it possible to carry out any movement profiles with regard to the compartment opening profile and the compartment closure as well as any desired compartment strokes.
The technical conclusion can be assigned to color and / or other parameters of the weft yarn as well as the binding.
With the drive according to the invention a cost reduction both material and time is realized by dispensing with shank beams.
Maintenance and servicing measures, in particular the bearings integrated in the deflection levers, are eliminated.
Without significant effort all available on the market looms can be retrofitted, because the conventional heald frames can be connected with the conventional shaft couplings to the inventively designed drives.
Further advantages result from the features of the dependent claims and from the following description of the embodiments.

Die Erfindung wird nachstehend an Ausführungsbeispielen näher erläutert.The invention will be explained in more detail by exemplary embodiments.

In den zugehörigen Zeichnungen zeigen:

Figur 1
eine schematische Darstellung von zwei elektromotorischen Antrieben in Verbindung mit einem Webschaft,
Figur 2
eine schematische Darstellung von drei elektromotorischen Antrieben in Verbindung mit einem Webschaft,
Figur 3
eine schematische Darstellung von zwei auf einen Schaftanschluss eines Webschaftes wirkenden elektromotorischen Antrieben mit unterschiedlicher Anordnung der Achsposition,
Figur 4
eine schematische Darstellung des oszillatorischen Antriebs als elektrischen Rotationsmotor,
Figur 5
eine schematische Darstellung des oszillatorischen Antriebs als elektrischen Linear-Motor,
Figur 6
eine schematische Darstellung des oszillatorischen Antriebs als Rotationsmotor nach Ansicht A-A in Figur 7 und
Figur 7
eine weitere schematische Darstellung der elektromotorischen Antriebe in modulartiger Anordnung auf den maschinenfesten Achsen.
In the accompanying drawings show:
FIG. 1
a schematic representation of two electric motor drives in conjunction with a heald,
FIG. 2
a schematic representation of three electric motor drives in conjunction with a heald,
FIG. 3
a schematic representation of two acting on a shaft connection of a heald electric motor drives with different arrangement of the axis position,
FIG. 4
a schematic representation of the oscillatory drive as a rotary electric motor,
FIG. 5
a schematic representation of the oscillatory drive as a linear electric motor,
FIG. 6
a schematic representation of the oscillatory drive as a rotary motor according to view AA in Figure 7 and
FIG. 7
a further schematic representation of the electric motor drives in a modular arrangement on the machine-fixed axes.

In Figur 1 ist ein konventioneller Webschaft 1 dargestellt.
Der Webschaft 1 ist, wie allgemein bekannt, mit ersten Kupplungsmitteln 2 ausgerüstet.FIG. 1 shows a conventional heald 1.
The heald 1 is, as is generally known, equipped with first coupling means 2.

Diese Kupplungsmittel 2 sind in modernen Webmaschinen zusammen mit dem ein zweites Kupplungsmittel 3 aufweisenden Schub-Zugstangen 6 sogenannte Kupplungschnellverschlüsse, wie diese z.B. aus DE 195 48 848 B1 bekannt sind.These coupling means 2 are in modern looms together with the second Coupling means 3 having push-pull rods 6 so-called quick couplings, like these e.g. from DE 195 48 848 B1 are known.

In der Figur sind die Kupplungsmittel 2 bekannter Weise an den Schaftseitenstützen 1a angeordnet.
Bei relativ breiten Webmaschinen, d.h. Webmaschinen mit einer Webbreite von z.B. mehr als drei Metern können weitere Schaftanschlüsse 2 vorhanden sein, wie in Figur 2 dargestellt.
Nur ein zentraler, mittiger Schaftanschluss 2 kann vorhanden sein, wie aus der JP 09-078389 A bekannt ist, wenn es sich um Webmaschinen geringer Webbreite, z.B. mit einer Breite von weniger als 1,5 m handelt.
Entgegen der bekannten technischen Lösungen sind in Figur 1 die Schub-Zugstangen 6 nicht an sogenannte Bewegungs-Umlenkhebel von sogenannten Schaftunterzügen angelenkt, sondern an geeigneter Stelle des in seiner Drehrichtung oszillierend umkehrbaren Rotors 4a eines elektrisch ansteuerbaren Motors 4 befestigt.
Die Drehrichtungsumkehr des Rotors 4a ist mit dem Doppelpfeil 9 angedeutet, während die Schub-Zugbewegung der Schub-Zugstange 6 durch den Doppelpfeil 10 angedeutet ist. Auf den erfindungsgemäß ausgebildeten Motor 4 und auf dessen erfindungsgemäße Anordnung relativ zu den Fachbildemitteln soll an anderer Stelle eingegangen werden.In the figure, the coupling means 2 are arranged on the shaft side supports 1a in a known manner.
In relatively wide weaving machines, ie looms with a weaving width of, for example, more than three meters, further shank connections 2 may be present, as shown in FIG.
Only a central, central shaft connection 2 can be present, as is known from JP 09-078389 A, if it involves weaving machines of small weaving width, for example with a width of less than 1.5 m.
Contrary to the known technical solutions, the push-pull rods 6 are not hinged to so-called motion lever of so-called Schaftunterzügen in Figure 1, but attached to a suitable location of the oscillating in its rotational direction reversible rotor 4a of an electrically controllable motor 4.
The direction of rotation of the rotor 4a is indicated by the double arrow 9, while the push-pull movement of the push-pull rod 6 is indicated by the double arrow 10. On the inventive design of the engine 4 and on its arrangement according to the invention relative to the Fachbildemitteln will be discussed elsewhere.

Figur 2 zeigt Fachbildemittel, bestehend aus wenigstens zwei Webschäften 1.
Ferner ist eine Mehrfachanordnung der die Motore 4 tragenden Achsen 5 dargestellt.
Eine Mehrfachanordnung der Achsen 5 ist auch in Figur 3 gezeigt.
Die in Figur 3 offenbarte Mehrfachanordnung der Achsen 5 ist dann von Bedeutung, wenn eine vorbestimmte Teilung T zwischen den einzelnen Webschäften, siehe auch Figur 2, üblich ist eine 12mm-Teilung, das axiale Baumaß des Motors 4 unterschreitet.FIG. 2 shows shed forming means consisting of at least two heald frames 1.
Furthermore, a multiple arrangement of the motors 4 bearing axes 5 is shown.
A multiple arrangement of the axes 5 is also shown in FIG.
The multiple arrangement of the axes 5 disclosed in FIG. 3 is important when a predetermined pitch T between the individual heald frames, see also FIG. 2, is a 12 mm pitch that is less than the axial dimension of the motor 4.

Bei zwei Achsen 5 z.B., beträgt dass axiale Baumaß jedes auf einen Schaftanschluß 2 wirkenden Motors 4 dann 24mm und bei drei Achsen 5, wie in Figur 7 dargestellt, kann das axiale Baumaß 36mm betragen.
Die Achsen 5 sind, wie später noch deutlich wird, maschinenfeste Achsen, die den Stator 4b des Motors 4 tragen.For example, in the case of two axles 5, the axial dimension of each motor 4 acting on one shaft connection 2 is 24 mm, and in the case of three axles 5, as shown in FIG. 7, the axial dimension of the construction can be 36 mm.
As will be seen later, the axles 5 are machine-fixed axles which support the stator 4b of the motor 4.

Bevorzugt sind die Achsen 5 als Vielkeilachsen ausgebildet, die die Motore 4 modulartig aufnehmen.
Ferner sind die Achsen als Hohlachsen ausgebildet, und zwar mit einem axialen Durchgang 5a versehen, der Kühlmittel zur Kühlung der Motore 4 hindurchführt.Preferably, the axes 5 are designed as splined axes, which receive the motors 4 in a modular manner.
Further, the axes are formed as hollow axes, with an axial passage 5a provided, which passes coolant for cooling the motors 4.

In Figur 4 ist der Aufbau des zuvor erwähnten Motors 4 dargestellt.
Die Wirkungsweise des Motors 4 entspricht der eines konventionellen Gleichstrom- oder Wechselstrommotors, mit dem Unterschied, das der Rotor 4a ein Außenläufer ist, der, entsprechend seiner Ansteuerung, eine oszillierend umkehrbare Drehbewegung, entsprechend des Doppelpfeils 9 realisiert, und diese Drehbewegung über ein geeignetes auf dem Außenumfang vorhandenes Mittel 4d in eine Schwenkbewegung umsetzt. Am freien Ende des Mittels 4d ist eine Anlenkstelle 4c ausgebildet, an der die Schub-Zugstange 6 gemäß der Figuren 1 bis 3 und 7 angreift. Der Stator 4b des Motors 4 trägt, wie an sich bekannt, die symbolhaft dargestellten Wicklungen 4e.
Entsprechend des als Vielkeilprofil gestalteten Umfangs der Achse 5 besitzt der Stator 4b eine entsprechend gestaltete Aufnahme 4f.
Der Motor 4 ist, wie hiernach deutlich wird, also ein wellenloser Gleich- oder Wechselstrommotor.FIG. 4 shows the structure of the previously mentioned motor 4.
The operation of the motor 4 corresponds to that of a conventional DC or AC motor, with the difference that the rotor 4a is an external rotor which, according to its control, an oscillating reversible rotational movement, realized according to the double arrow 9, and this rotational movement on a suitable the outer periphery existing means 4d converts into a pivoting movement. At the free end of the means 4d an articulation point 4c is formed, on which the push-pull rod 6 according to the figures 1 to 3 and 7 attacks. The stator 4b of the motor 4 carries, as is known, the windings 4e shown symbolically.
According to the designed as splined profile circumference of the axis 5, the stator 4b has a correspondingly shaped recording 4f.
The motor 4 is, as will be apparent hereinafter, so a shaftless DC or AC motor.

Der in Figur 5 dargestellte Antrieb ist alternativ zu den vorgenannten Rotationsantrieb als Kreissektor-Linearmotor 11 ausgebildet.
Der prinzipielle Aufbau und die Wirkungsweise eines derartigen Kreissektor-Linearmotors ist z.B. aus DE 198 49 728 A1 bekannt, so dass hierauf nicht näher eingegangen werden muss.
Der Läufer 11a des Linearmotors 11 ist in Art eines schwenkbeweglich gelagerten einarmigen Hebels ausgebildet, an dessen freiem Ende eine Anlenkstelle 11c zum Verbinden mit einer Schub-Zugstange 6 gemäß der Figur 1 vorgesehen ist.
Der Stator 11b des Linearmotors 11 ist im Betriebszustand drehfest mit einer Achse 5, entsprechend der vorherigen Ausführungen zu dem Rotationsantrieb 4, verbunden.
Im Betriebszustand des Motors 11 ist ferner der Innenring 12a eines den Läufer 11a am Außenring 12b tagenden Wälzlagers 12 drehfest mit einer Achse 5 verbunden.
Der Innenring 12a des Wälzlagers 12 ist mit keilförmigen Ausnehmungen versehen, die den Keilen der Vielkeilachse 5 entsprechend ausgebildet sind.The drive illustrated in FIG. 5 is designed as a circular sector linear motor 11 as an alternative to the aforementioned rotary drive.
The basic structure and the operation of such a circular sector linear motor is known for example from DE 198 49 728 A1, so that it need not be discussed in detail.
The rotor 11a of the linear motor 11 is designed in the manner of a pivotally mounted one-armed lever, at its free end a pivot point 11c is provided for connection to a push-pull rod 6 according to FIG.
The stator 11 b of the linear motor 11 is rotatably connected in the operating state with an axis 5, corresponding to the previous versions of the rotary drive 4.
In the operating state of the engine 11, furthermore, the inner ring 12a of a roller bearing 11 which meets the rotor 11a on the outer ring 12b is non-rotatably connected to an axle 5.
The inner ring 12a of the rolling bearing 12 is provided with wedge-shaped recesses which are formed according to the wedges of the splined axis 5.

Figur 6 zeigt eine Draufsicht der gemäß Figur 7 in der ersten Anordnungsebene auf den Achsen 5 angeordneten Motoren 4 oder 11.
Die Statoren 4b oder 11b der Motoren 4 oder 11 sind hier modulartig auf jeder Achse 5 angeordnet und mit dieser drehfest verbunden.
Unter Berücksichtigung der bereits erwähnten Schäfte-Teilung T sind hier drei Motoren 4;11 auf einer Seite eines Webschaftes 1 wirksam. Die gleiche Anzahl von Motoren 4;11 ist auf die andere Seite des Webschaftes wirksam.FIG. 6 shows a plan view of the motors 4 or 11 arranged on the axles 5 in the first arrangement plane according to FIG.
The stators 4b or 11b of the motors 4 or 11 are here arranged in a modular manner on each axis 5 and connected in rotation therewith.
Taking into account the already mentioned shank division T, three motors 4, 11 on one side of a heald 1 are effective here. The same number of motors 4, 11 is effective on the other side of the heald.

Mit Figur 7 wird deutlich gemacht, dass in einer ersten Anordnungsebene wenigstens zwei Motoren 4 und in einer zweiten Anordnungsebene wenigstens ein weiterer Motor 4 auf ein und derselben Seite eines Webschaftes 1 über die entsprechende Zug-Schubstange 6 wirksam sein kann. With FIG. 7 it is made clear that in a first arrangement plane at least two Motors 4 and in a second arrangement level, at least one further motor 4 on a and the same side of a heald shaft 1 via the corresponding pull-push rod 6 can be effective.

ZEICHNUNGS-LEGENDEDRAWING LEGEND

11
Fachbildemittel (Webschaft)Fachbildemittel (Webschaft)
1 a1 a
SchaftseitenstützeShaft side support
22
Kupplungsmittelcoupling agent
33
Kupplungsmittelcoupling agent
44
Rotationsmotorrotary engine
4a4a
Rotorrotor
4b4b
Statorstator
4c4c
Anlenkstellearticulation
4d4d
Schwenkteilpivoting part
4e4e
Wicklungwinding
4f4f
Aufnahmeadmission
55
Achseaxis
5a5a
Durchgangpassage
66
Schub-ZugstangePush-pull rod
77
Steuerungcontrol
88th
Mittenachsemid-axis
99
Doppelpfeildouble arrow
1010
Doppelpfeildouble arrow
1111
Linearmotorlinear motor
11a11a
Läuferrunner
11 b11 b
Statorstator
1212
Wälzlagerroller bearing
12a12a
Innenringinner ring
12b12b
Außenringouter ring
TT
Teilungdivision

Claims (17)

  1. A drive for the heald frames of a loom provided with a main drive, which heald frames have first coupling means which are operatively connectable to second coupling means of a push-pull rod, and wherein the drive of each heald frame is at least one electrically actuatable electric motor comprising a rotor and a stator and connected to the loom at a suitable location, characterised in that the rotors (4a) of the electric motors (4) are reversible in their direction of rotation in an oscillating manner,
    in that each rotor (4a) is a rotor of an external-rotor electric motor, said rotor having a pivoting part (4d) which, outside the axial-geometrical central axis (8) of the electric motor, has an articulation point (4c) for the push-pull rod (6), which is operatively connectable to the heald frame (1), and in that a rotationally fixed shaft (5), on which the electric motors (4) are positioned in a modular manner, is provided as a suitable location.
  2. A drive for the heald frames of a loom provided with a main drive, which heald frames have first coupling means which are connectable to second coupling means of a push-pull rod, and wherein the drive of each heald frame is at least one electrically actuatable electric linear motor comprising a rotor and a stator and connected to the loom at a suitable location, characterised in that the rotors (11a) of the linear motors (11) are reversible in their direction of rotation in an oscillating manner, in that the rotors (11a) are formed as a pivoting part (11d) which is mounted so as to be pivotable about a shaft (5) connected to the loom in a rotationally fixed manner and which, outside its mounting, has an articulation point (11c) for the push-pull rod (6), which is operatively connectable to the heald frame, and in that a rotationally fixed shaft (5), on which the linear motors (11) are positioned in a modular manner, is provided as a suitable location.
  3. A drive according to claim 1, characterised in that the motor (4) is either a d.c. or an a.c. rotary drive.
  4. A drive according to claim 2, characterised in that the motor (11) is either a circular-sector d.c. linear motor or a circular-sector a.c. linear motor.
  5. A drive according to claim 1 or 2, characterised in that a plurality of the shafts (5) is provided if a predetermined spacing (T) of the shedding means (1) is smaller than the axial size of the motor (4; 11).
  6. A drive according to claim 1 or 2, characterised in that, with a plurality of the shafts (5), at least one first shaft and one second shaft are arranged in a common plane so as to be axially parallel to one another.
  7. A drive according to claim 6, characterised in that, with a plurality of the shafts, at least one first and one second shaft (5) are arranged in a common plane so as to be axially parallel, and at least one further shaft (5) is arranged in a plane different from the common plane.
  8. A drive according to claim 1, characterised in that the shaft (5) is preferably a spline shaft.
  9. A drive according to claim 1 or 2, characterised in that a motor (4; 11) for a respective shedding means (1) is associated with each shaft (5).
  10. A drive according to claim 1 or 2, characterised in that the motors (4; 11) of the shedding means are operable synchronously with the main drive.
  11. A drive according to claim 1 or 2, characterised in that the shedding means (1) are conventional heald frames.
  12. A drive according to claim 1 or 2, characterised in that the shedding means (1) have at least one quick-acting coupling closure known per se.
  13. A drive according to claim 1 or 2, characterised in that the at least one rotationally fixed shaft (5) is arranged vertically spaced below the shedding means (1).
  14. A drive according to claim 1 or 2, characterised in that the motors (4; 11) are actuatable in a freely programmable manner by a control means (7).
  15. A drive according to claim 14, characterised in that programs for weaving, programs for lifting the heald frames, programs for the shed opening profiles and programs for shed closure as a function of parameters of the weft yarn are stored in the control means (7).
  16. A drive according to claim 1 or 2, characterised in that the shaft (5) has a central passage (5a) over its length.
  17. A drive according to claim 16, characterised in that the passage (5a) is a coolant line.
EP02001555A 2001-03-07 2002-01-23 Drive for a heald frame of a weaving machine Expired - Lifetime EP1239068B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10111017 2001-03-07
DE10111017A DE10111017B4 (en) 2001-03-07 2001-03-07 Drive for the heald frames of a loom

Publications (2)

Publication Number Publication Date
EP1239068A1 EP1239068A1 (en) 2002-09-11
EP1239068B1 true EP1239068B1 (en) 2005-03-02

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ID=7676644

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EP02001555A Expired - Lifetime EP1239068B1 (en) 2001-03-07 2002-01-23 Drive for a heald frame of a weaving machine

Country Status (7)

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US (1) US6460577B1 (en)
EP (1) EP1239068B1 (en)
JP (1) JP3560589B2 (en)
AT (1) ATE290110T1 (en)
DE (2) DE10111017B4 (en)
ES (1) ES2239180T3 (en)
PT (1) PT1239068E (en)

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Publication number Publication date
US6460577B1 (en) 2002-10-08
ES2239180T3 (en) 2005-09-16
ATE290110T1 (en) 2005-03-15
PT1239068E (en) 2005-06-30
US20020124901A1 (en) 2002-09-12
DE50202345D1 (en) 2005-04-07
DE10111017A1 (en) 2002-10-10
JP3560589B2 (en) 2004-09-02
DE10111017B4 (en) 2006-02-02
JP2002309461A (en) 2002-10-23
EP1239068A1 (en) 2002-09-11

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