EP1016743B1 - Device for the controlled displacement of a weft thread - Google Patents

Device for the controlled displacement of a weft thread Download PDF

Info

Publication number
EP1016743B1
EP1016743B1 EP19990811031 EP99811031A EP1016743B1 EP 1016743 B1 EP1016743 B1 EP 1016743B1 EP 19990811031 EP19990811031 EP 19990811031 EP 99811031 A EP99811031 A EP 99811031A EP 1016743 B1 EP1016743 B1 EP 1016743B1
Authority
EP
European Patent Office
Prior art keywords
pendulum
accordance
coil
positions
permanent magnets
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
EP19990811031
Other languages
German (de)
French (fr)
Other versions
EP1016743A1 (en
Inventor
Dietmar Markward
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.)
Itema Switzerland Ltd
Original Assignee
Sultex AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sultex AG filed Critical Sultex AG
Priority to EP19990811031 priority Critical patent/EP1016743B1/en
Publication of EP1016743A1 publication Critical patent/EP1016743A1/en
Application granted granted Critical
Publication of EP1016743B1 publication Critical patent/EP1016743B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C13/00Shedding mechanisms not otherwise provided for
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C11/00Selvedge shedding mechanisms not forming part of main shedding mechanism
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00Leno or similar shedding mechanisms

Definitions

  • the invention relates to a device for the controlled movement of a Warp thread according to the preamble of claim 1. It also relates to a weaving machine with such a facility and uses the Facility.
  • Rotary devices are used to form fabric edges: One Pierced needle that guides a warp thread in an eyelet and a driving needle in combination with a weft thread form a leno weave (see z. B. EP-A 0 737 764).
  • the needles are moved with drive units, the cables, control cams, rollers and levers in known weaving machines include. These mechanical components are expensive and 29leisstr founded. In the event of changes in operating parameters (strand stroke, sugeometrie u. a.) Time-consuming manual adjustments be made.
  • the object of the invention is to provide a further device with which Warp threads - especially to form fabric edges - by means of a punctual forced control (i.e. with selective means) controlled are movable and in which the disadvantages mentioned are eliminated.
  • This task is solved by the device defined in claim 1.
  • This device moves in a controlled manner by means of selective forced guidance a warp thread between three positions, namely a middle one upper and lower position. It includes one around an axis pivoting pendulum, in which an electrical coil is integrated, and fixed permanent magnets. Through equilibrium of the pendulum the specified positions are given, in which positions forces, that act on the pendulum are in equilibrium.
  • the Equilibrium positions for the upper and lower positions are by means of Forces between the permanent magnets and the current-carrying coil produced; the equilibrium position for the middle position is through that Given pendulum with de-energized coil.
  • Objects of Claims 10 to 12 are a loom with such a device and uses of this device for a lathe device and for a jacquard shedding device.
  • a device 1 for the controlled movement of a warp thread 9 comprises the following components: a pivotable about an axis 20 Pendulum 2, in which one on a non-ferromagnetic sheet 21 or Electrical coil 3 arranged between two such sheets 21 is integrated is; Permanent magnets 4 on a fixed support plate 7; vertical Slidable elements 5 and 5 ', the flexible bands 6 and 6' in Operatively connected to a bracket 22 of the pendulum 2; and springs 65.
  • the straps 6 and 6 'serving as traction means can also be used as ropes be trained.
  • the middle position is due to gravitational forces and on the other hand given tensile forces of the springs 65.
  • the one direct current leading coil 3 generates together with the permanent magnet 4th additionally magnetic forces, through which the equilibrium position changes right or left shifted. By reversing the polarity of the current in coil 3 the pendulum 2 changes from one to the other of these two Equilibrium positions.
  • the tape 6, which is on the lower side 23 of the The bracket 22 can partially rest on the side with a screw 62 Pendulum 2 is attached and that via a roller 61 in the vertical direction is deflected, the pendulum movement sets in a linear movement of the Elements 5 ⁇ m.
  • the equilibrium positions of the pendulum 3 are transferred thus to three stable positions of the eyelet 50 through which the three mentioned Positions of the warp thread 9 are given. Sensors for a regulation these positions are not necessary.
  • the strip-shaped or groove-shaped contact surface 23 for the traction means 6 advantageously lies on a curve that is at least approximately a circle around the Pendulum axis 20 is. In particular, on the center of this circle the pendulum axis 20 are.
  • the stroke of the eyelet 50 i. H. the Distance between their middle and upper (or lower) position, proportional to the radius of the named circle.
  • the hub is also proportional to the swivel angle of the pendulum 2, which by the location and Shape of the magnets is set.
  • the device according to the invention In contrast to linear motors, the device according to the invention must the weight of the moving part, namely the pendulum 2, not by electromagnetic forces are absorbed.
  • the pendulum 2 is a segment plate made of a non-ferromagnetic Material in which the coil 3 (with connecting wires 30) is embedded.
  • the Deflection rollers 61, 61 ' have horizontally displaceable axes.
  • a second Pair of rollers 63 has axles with fixed positions.
  • a side view of a pendulum 2, as in the device 1 of FIG. 1st 4 shows a configuration of permanent magnets 4, 4a for this pendulum 2, which are arranged on the carrier plate 7, is in FIG. 5 shown; and a horizontal cross section through this pendulum 2 with the Permanent magnets 4, 4a arranged on both sides is shown in FIG. 6 shown.
  • the electrical coil 3 is designed as a flat ring.
  • the one with the coil 3 The magnetic field that can be generated is at least approximately parallel in the center of the ring oriented to the pendulum axis 20.
  • the permanent magnets 4, 4a are disc-shaped and arranged parallel to the coil 3.
  • the Magnetizations of the permanent magnets 4, 4a are the same as the one mentioned Magnetic field of the coil or oriented opposite to this.
  • the Permanent magnets 4, 4a are advantageously on both sides of the pendulum arranged ferromagnetic carrier plates 7 and each form the same Configuration. 6 are the magnetizations of the permanent magnets 4, 4a indicated by arrows 41, 42. Arrows 47 represent a magnetization of the ferromagnetic carrier plates 7.
  • the two neighboring Permanent magnets 4 and 4a are in the reversal area of the pendulum 2 arranged; they have opposite orientations Magnetizations.
  • the smaller partner 4a of this permanent magnet pair serves as a brake magnet for the pendulum 2. With this it is achieved that the Pendulum 2 quickly into the upper due to a dampening effect Equilibrium positions remain calm. This also ensures Permanent magnet pair 4 and 4a a more precise reversing or end position of the pendulum 2.
  • the sheets 21 are made made of a material that conducts electricity well but is not ferromagnetic is.
  • Aluminum for example, can be selected as the material. Eddy currents in these sheets 21 when moving in the magnetic field Permanent magnets 4, 4a are induced, dampen the movement of the Pendulum 2.
  • a gap 24 is provided so that not by induction when switching the coil current on or off Ring current forms, which would mean unnecessary energy dissipation.
  • an eyelet 50 is included Strand 5 controlled, at both ends of the tapes 6 and 6 'attack.
  • the Band 6 ' is deflected by rollers through 180 °.
  • the not shown warp thread (or group of warp threads) with a Element 51 moves, its weight increases when the middle position is set is taken into account.
  • the springs 65 and 65 ' can be selected and adjusted in this way be that the pendulum 2 in a non-energized coil 3 Equilibrium is in which, for example, the focus of the Pendulum is located vertically under axis 20.
  • Half-turn devices 8 and 8 ' By means of a first device 1 Warp thread 9 'moved with a needle 5.
  • a hook needle 5b (with a Double hook 51) with the perforated needle 5 in a known manner cooperates, is operated with a second device 1 '.
  • This second device 1 ' are simultaneously elements 5a and 5a' which Wear auxiliary edge shafts 55, 55 ', up and down in an opposite manner emotional.
  • the pendulum 2 'of the device 1' comprises two segment plates 2a, 2b with different radii.
  • the hook needle 5b stands with the segment plate 2b associated with the larger radius. Accordingly there is a greater stroke than for the auxiliary edge shafts 55, 55 '.
  • a fixed Plate 80 - see also the oblique image in Fig. 10 - is between the Half-turn elements 8 and 8 'arranged. By edging this plate 80 necessary deflections of the warp threads 9 result in a known manner and 9 '.
  • a device for forming a leno edge is also known, the two Lever healds, which are to be moved in opposite directions, and comprise a half heald (DE-A 40 00 035). This device can be done with only one device operate according to the invention.
  • the equilibrium position when the coil is de-energized can be increased Permanent magnets are influenced. At least one magnet must be used be arranged on the pendulum: for example in the inner area of the annular coil (no figure).
  • the warp threads are moved individually. she but can also be moved together in groups, like it is known for example for jacquard shedding devices.
  • the Elements for moving warp threads are replaced by organs, by means of which a group of warp threads can be moved simultaneously.
  • Looms can be equipped with a variety of facilities according to the Invention are equipped. This is particularly advantageous if the Weaving machine using an electronic and programmable control is operated.
  • a processor for such a controller can also be used for Control of the devices according to the invention can be used.
  • the Currents of the coils can be programmed automatically adjustable in such a way that they assume values that match the warp thread types are specified accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Description

Die Erfindung betrifft eine Einrichtung zum gesteuerten Bewegen eines Kettfadens gemäss Oberbegriff von Anspruch 1. Sie bezieht sich auch auf eine Webmaschine mit einer solchen Einrichtung und Verwendungen der Einrichtung.The invention relates to a device for the controlled movement of a Warp thread according to the preamble of claim 1. It also relates to a weaving machine with such a facility and uses the Facility.

Zur Bildung von Gewebekanten werden Drehervorrichtungen verwendet: Eine Lochnadel, die einen Kettfaden in einer Öse führt, und eine Mitnehmernadel bilden im Zusammenspiel mit einem Schussfaden eine Dreherbindung (siehe z. B. die EP-A 0 737 764). Die Nadeln werden mit Antriebseinheiten bewegt, die bei bekannten Webmaschinen Seilzüge, Steuernocken, Rollen und Hebel umfassen. Diese mechanischen Komponenten sind teuer und verschleissträchtig. Bei Änderungen von Betriebsparametern (Litzenhub, Fachgeometrie u. a.) müssen Verstellungen zeitraubend von Hand vorgenommen werden.Rotary devices are used to form fabric edges: One Pierced needle that guides a warp thread in an eyelet and a driving needle in combination with a weft thread form a leno weave (see z. B. EP-A 0 737 764). The needles are moved with drive units, the cables, control cams, rollers and levers in known weaving machines include. These mechanical components are expensive and verschleissträchtig. In the event of changes in operating parameters (strand stroke, Fachgeometrie u. a.) Time-consuming manual adjustments be made.

Es ist auch bekannt, Linearmotoren als Antriebseinheiten zu verwenden. Ein elektronischer Prozessor, der bereits für die Steuerung der Webmaschine eingesetzt wird, kann auch für die Steuerung der Linearmotoren verwendet werden. Dabei ist allerdings von Nachteil, dass für die Einstellung von Kettfadenlagen mittels punktuell wirkenden Mitteln - beispielsweise Lochnadeln - Regelkreise mit besonderen Positionssensoren erforderlich sind (vgl. WO 96/38608). It is also known to use linear motors as drive units. On electronic processor that is already used to control the weaving machine can also be used to control the linear motors become. However, it is disadvantageous that for the setting of Warp thread layers by means of selective agents - for example Perforated needles - control loops with special position sensors are required (see WO 96/38608).

Aufgabe der Erfindung ist es, eine weitere Einrichtung zu schaffen, mit der Kettfäden - insbesondere zur Bildung von Gewebekanten - mittels einer punktuellen Zwangsführung (d. h. mit punktuell wirkenden Mitteln) gesteuert bewegbar sind und bei der die genannten Nachteile wegfallen. Diese Aufgabe wird durch die in Anspruch 1 definierte Einrichtung gelöst.The object of the invention is to provide a further device with which Warp threads - especially to form fabric edges - by means of a punctual forced control (i.e. with selective means) controlled are movable and in which the disadvantages mentioned are eliminated. This task is solved by the device defined in claim 1.

Diese Einrichtung bewegt gesteuert mittels einer punktuellen Zwangsführung einen Kettfaden zwischen drei Positionen, nämlich einer mittleren, einer oberen sowie einer unteren Position. Sie umfasst ein um eine Achse verschwenkbares Pendel, in das eine elektrische Spule integriert ist, und raumfeste Permanentmagnete. Durch Gleichgewichtsstellungen des Pendels sind die genannten Positionen gegeben, wobei in diesen Stellungen Kräfte, die auf das Pendel wirken, jeweils in einem Gleichgewicht stehen. Die Gleichgewichtsstellungen für die obere bzw. untere Position sind mittels Kräften zwischen den Permanentmagneten und der stromführenden Spule erzeugbar; die Gleichgewichtsstellung für die mittlere Position ist durch das Pendel mit stromloser Spule gegeben.This device moves in a controlled manner by means of selective forced guidance a warp thread between three positions, namely a middle one upper and lower position. It includes one around an axis pivoting pendulum, in which an electrical coil is integrated, and fixed permanent magnets. Through equilibrium of the pendulum the specified positions are given, in which positions forces, that act on the pendulum are in equilibrium. The Equilibrium positions for the upper and lower positions are by means of Forces between the permanent magnets and the current-carrying coil produced; the equilibrium position for the middle position is through that Given pendulum with de-energized coil.

Die abhängigen Ansprüche 2 bis 9 beziehen sich auf vorteilhafte Ausführungsformen der erfindungsgemässen Einrichtung. Gegenstände der Ansprüche 10 bis 12 sind eine Webmaschine mit einer derartigen Einrichtung und Verwendungen dieser Einrichtung für eine Drehervorrichtung sowie für eine Jacquard-Fachbildevorrichtung.The dependent claims 2 to 9 relate to advantageous Embodiments of the device according to the invention. Objects of Claims 10 to 12 are a loom with such a device and uses of this device for a lathe device and for a jacquard shedding device.

Nachfolgend wird die Erfindung anhand der Zeichnungen erläutert. Es zeigen:

Fig. 1
eine erfindungsgemässe Einrichtung,
Fig. 2
eine Variante dieser Einrichtung,
Fig. 3
mehrere parallel angeordnete Einrichtungen (für eine Jacquard-Fachbildevorrichtung),
Fig. 4-6
Details zu einer weiteren Variante der erfindungsgemässen Einrichtung,
Fig. 7, 8
zwei besondere Möglichkeiten, verschiebbare Elemente an ein Pendel der erfindungsgemässen Einrichtung anzuschliessen, und
Fig. 9, 10
eine Drehervorrichtung.
The invention is explained below with reference to the drawings. Show it:
Fig. 1
a device according to the invention,
Fig. 2
a variant of this facility,
Fig. 3
several devices arranged in parallel (for a jacquard shedding device),
Fig. 4-6
Details of a further variant of the device according to the invention,
7, 8
two special options for connecting displaceable elements to a pendulum of the device according to the invention, and
9, 10
a lathe device.

Fig. 1 zeigt eine Einrichtung 1 zum gesteuerten Bewegen eines Kettfadens 9, die folgende Komponenten umfasst: Ein um eine Achse 20 verschwenkbares Pendel 2, in dem eine auf einem nicht ferromagnetischen Blech 21 oder zwischen zwei solchen Blechen 21 angeordnete elektrische Spule 3 integriert ist; Permanentmagnete 4 auf einer raumfesten Trägerplatte 7; vertikal verschiebbare Elemente 5 und 5', die über flexible Bänder 6 und 6' in Wirkverbindung mit einem Bügel 22 des Pendels 2 stehen; und Federn 65. Die als Zugmittel dienenden Bänder 6 und 6' können auch als Seile ausgebildet sein.1 shows a device 1 for the controlled movement of a warp thread 9, comprises the following components: a pivotable about an axis 20 Pendulum 2, in which one on a non-ferromagnetic sheet 21 or Electrical coil 3 arranged between two such sheets 21 is integrated is; Permanent magnets 4 on a fixed support plate 7; vertical Slidable elements 5 and 5 ', the flexible bands 6 and 6' in Operatively connected to a bracket 22 of the pendulum 2; and springs 65. The straps 6 and 6 'serving as traction means can also be used as ropes be trained.

Ein Kettfaden 9, der in eine Öse 50 des Elements 5 eingezogen und durch diese zwangsgeführt ist, kann punktuell zwischen drei Positionen bewegt werden, nämlich zwischen einer mittleren, einer oberen sowie einer unteren Position. Diese Positionen sind durch Gleichgewichtsstellungen des Pendels 2 gegeben, die sich aufgrund von auf das Pendel 2 einwirkenden Kräften einstellen. Die mittlere Position ist durch einerseits Gravitationskräfte und andererseits Zugkräfte der Federn 65 gegeben. Die einen Gleichstrom führende Spule 3 erzeugt zusammen mit den Permanentmagneten 4 zusätzlich magnetische Kräfte, durch die sich die Gleichgewichtsstellung nach rechts bzw. links oben verschiebt. Durch Umpolen des Stroms in der Spule 3 wechselt das Pendel 2 von der einen in die andere dieser beiden Gleichgewichtsstellungen. Das Band 6, das auf der unteren Seite 23 des Bügels 22 teilweise aufliegen kann, das mit einer Schraube 62 seitlich am Pendel 2 befestigt ist und das über eine Rolle 61 in die vertikale Richtung umgelenkt wird, setzt die Pendelbewegung in eine lineare Bewegung des Elements 5 um. Die Gleichgewichtsstellungen des Pendels 3 übertragen sich so auf drei stabile Positionen der Öse 50, durch welche die drei genannten Positionen des Kettfadens 9 gegeben sind. Sensoren zu einer Regelung dieser Positionen sind nicht nötig. A warp thread 9 which is drawn into and through an eyelet 50 of the element 5 this is positively guided, can be moved between three positions between a middle, an upper and a lower one Position. These positions are due to the equilibrium of the pendulum 2 given, which are due to forces acting on the pendulum 2 to adjust. The middle position is due to gravitational forces and on the other hand given tensile forces of the springs 65. The one direct current leading coil 3 generates together with the permanent magnet 4th additionally magnetic forces, through which the equilibrium position changes right or left shifted. By reversing the polarity of the current in coil 3 the pendulum 2 changes from one to the other of these two Equilibrium positions. The tape 6, which is on the lower side 23 of the The bracket 22 can partially rest on the side with a screw 62 Pendulum 2 is attached and that via a roller 61 in the vertical direction is deflected, the pendulum movement sets in a linear movement of the Elements 5 µm. The equilibrium positions of the pendulum 3 are transferred thus to three stable positions of the eyelet 50 through which the three mentioned Positions of the warp thread 9 are given. Sensors for a regulation these positions are not necessary.

Die streifenförmige oder rillenförmige Auflagefläche 23 für das Zugmittel 6 liegt mit Vorteil auf einer Kurve, die zumindest angenähert ein Kreis um die Pendelachse 20 ist. Insbesondere kann auf dem Mittelpunkt dieses Kreises die Pendelachse 20 stehen. In diesem Fall ist der Hub der Öse 50, d. h. der Abstand zwischen deren mittleren und oberen (oder unteren) Position, proportional zum Radius des genannten Kreises. Der Hub ist ausserdem proportional zum Schwenkwinkel des Pendels 2, der durch die Lage und Form der Magnete festgelegt ist.The strip-shaped or groove-shaped contact surface 23 for the traction means 6 advantageously lies on a curve that is at least approximately a circle around the Pendulum axis 20 is. In particular, on the center of this circle the pendulum axis 20 are. In this case, the stroke of the eyelet 50, i. H. the Distance between their middle and upper (or lower) position, proportional to the radius of the named circle. The hub is also proportional to the swivel angle of the pendulum 2, which by the location and Shape of the magnets is set.

Mit Vorteil wird dem stromlosen Zustand der Spule 2 und damit der mittleren Position der Öse 50 die Fachschlussstellung eines mit Kettfäden 9 gebildeten Fachs zugeordnet.The currentless state of the coil 2 and thus the middle one is advantageous Position of the eyelet 50, the specialist closing position of a formed with warp threads 9 Subject assigned.

Es können zwei Elemente 5 und 5' zum Bewegen von zwei Kettfäden 9 vorgesehen sein, wobei die Bewegungen in einer gegengleichen Weise oder antisymmetrischen Form erfolgt: bei stromführender Spule 3 befindet sich der eine Kettfaden 9 in der oberen, der andere in der unteren Position; bei stromloser Spule 3 sind die beiden Kettfäden gleichzeitig in der mittleren Position. Bei einem Umpolen der Spule 3 bewegen sich die beiden Kettfäden gegenläufig.There can be two elements 5 and 5 'for moving two warp threads 9 be provided, the movements in an opposite manner or antisymmetric shape takes place: with current-carrying coil 3 is the one warp thread 9 in the upper position, the other in the lower position; at currentless bobbin 3, the two warp threads are simultaneously in the middle Position. When the bobbin 3 is reversed, the two warp threads move in opposite directions.

Anders als bei Linearmotoren muss bei der erfindungsgemässen Einrichtung das Gewicht des beweglichen Teils, nämlich des Pendels 2, nicht durch elektormagnetische Kräfte aufgenommen werden.In contrast to linear motors, the device according to the invention must the weight of the moving part, namely the pendulum 2, not by electromagnetic forces are absorbed.

Bei der in Fig. 2 gezeigten Variante der erfindungsgemässen Einrichtung 1 ist das Pendel 2 eine Segmentplatte aus einem nicht ferromagnetischen Material, in welche die Spule 3 (mit Anschlussdrähten 30) eingebettet ist. Die Umlenkrollen 61, 61' haben horizontal verschiebbare Achsen. Ein zweites Rollenpaar 63 hat Achsen mit festen Positionen.In the variant of the device 1 according to the invention shown in FIG the pendulum 2 is a segment plate made of a non-ferromagnetic Material in which the coil 3 (with connecting wires 30) is embedded. The Deflection rollers 61, 61 'have horizontally displaceable axes. A second Pair of rollers 63 has axles with fixed positions.

Mehrere erfindungsgemässe Einrichtungen, mit denen eine Vielzahl von Kettfäden gleichzeitig bewegt werden können, lassen sich raumsparend parallel anordnen, wie es schematisch in Fig. 3 illustriert ist. Several devices according to the invention, with which a variety of Warp threads can be moved simultaneously, saving space Arrange in parallel as illustrated schematically in FIG. 3.

Eine Seitenansicht auf ein Pendel 2, wie es in der Einrichtung 1 der Fig. 1 enthalten ist, zeigt Fig. 4. Eine Konfiguration von Permanentmagneten 4, 4a für dieses Pendel 2, die auf der Trägerplatte 7 angeordnet sind, ist in Fig. 5 dargestellt; und ein horizontaler Querschnitt durch dieses Pendel 2 mit den auf beiden Seiten angeordneten Permanentmagneten 4, 4a ist in Fig. 6 gezeigt.A side view of a pendulum 2, as in the device 1 of FIG. 1st 4 shows a configuration of permanent magnets 4, 4a for this pendulum 2, which are arranged on the carrier plate 7, is in FIG. 5 shown; and a horizontal cross section through this pendulum 2 with the Permanent magnets 4, 4a arranged on both sides is shown in FIG. 6 shown.

Die elektrische Spule 3 ist als flacher Ring ausgebildet. Das mit der Spule 3 erzeugbare Magnetfeld ist im Ringmittelpunkt zumindest angenähert parallel zur Pendelachse 20 orientiert. Die Permanentmagnete 4, 4a sind scheibenförmig ausgebildet und parallel zur Spule 3 angeordnet. Die Magnetisierungen der Permanentmagnete 4, 4a sind gleich wie das genannte Magnetfeld der Spule bzw. entgegengesetzt zu diesem orientiert. Die Permanentmagnete 4, 4a sind mit Vorteil auf beiden Seiten des Pendels auf ferromagnetischen Trägerplatten 7 angeordnet und bilden jeweils eine gleiche Konfiguration. In Fig. 6 sind die Magnetisierungen der Permanentmagnete 4, 4a durch Pfeile 41, 42 angegeben. Pfeile 47 stellen eine Magnetisierung der ferromagnetischen Trägerplatten 7 dar. Die beiden benachbarten Permanentmagnete 4 und 4a sind im Umkehrbereich des Pendels 2 angeordnet; sie haben entgegengesetzt zueinander orientierte Magnetisierungen. Der kleinere Partner 4a dieses Permanentmagnet-Paars dient als Bremsmagnet für das Pendel 2. Mit ihm wird erreicht, dass das Pendel 2 aufgrund einer dämpfenden Wirkung rasch in den oberen Gleichgewichtsstellungen ruhig stehen bleibt. Ausserdem gewährleistet das Permanentmagnet-Paar 4 und 4a eine genauere Umkehr- oder Endposition des Pendels 2.The electrical coil 3 is designed as a flat ring. The one with the coil 3 The magnetic field that can be generated is at least approximately parallel in the center of the ring oriented to the pendulum axis 20. The permanent magnets 4, 4a are disc-shaped and arranged parallel to the coil 3. The Magnetizations of the permanent magnets 4, 4a are the same as the one mentioned Magnetic field of the coil or oriented opposite to this. The Permanent magnets 4, 4a are advantageously on both sides of the pendulum arranged ferromagnetic carrier plates 7 and each form the same Configuration. 6 are the magnetizations of the permanent magnets 4, 4a indicated by arrows 41, 42. Arrows 47 represent a magnetization of the ferromagnetic carrier plates 7. The two neighboring Permanent magnets 4 and 4a are in the reversal area of the pendulum 2 arranged; they have opposite orientations Magnetizations. The smaller partner 4a of this permanent magnet pair serves as a brake magnet for the pendulum 2. With this it is achieved that the Pendulum 2 quickly into the upper due to a dampening effect Equilibrium positions remain calm. This also ensures Permanent magnet pair 4 and 4a a more precise reversing or end position of the pendulum 2.

Damit der Übergang zwischen den drei Gleichgewichtsstellungen ohne störende Einschwingvorgänge erfolgen kann, werden die Bleche 21 aus einem Material hergestellt, das elektrisch gut leitet aber nicht ferromagnetisch ist. Als Material kann beispielsweise Aluminium gewählt werden. Wirbelströme, die in diesen Blechen 21 bei der Bewegung im Magnetfeld der Permanentmagnete 4, 4a induziert werden, dämpfen die Bewegung des Pendels 2. Im Blech 21 - siehe Fig. 4 - ist ein Spalt 24 vorgesehen, damit sich nicht durch Induktion beim Ein- oder Umschalten des Spulenstroms ein Ringstrom ausbildet, der eine unnötige Energiedissipation bedeuten würde . So that the transition between the three equilibrium positions without disturbing transient processes can take place, the sheets 21 are made made of a material that conducts electricity well but is not ferromagnetic is. Aluminum, for example, can be selected as the material. Eddy currents in these sheets 21 when moving in the magnetic field Permanent magnets 4, 4a are induced, dampen the movement of the Pendulum 2. In the sheet 21 - see Fig. 4 - a gap 24 is provided so that not by induction when switching the coil current on or off Ring current forms, which would mean unnecessary energy dissipation.

Mit der in Fig. 7 abgebildeten Einrichtung 1 wird eine die Öse 50 enthaltende Litze 5 gesteuert, an deren beiden Enden die Bänder 6 und 6' angreifen. Das Band 6' wird über Rollen um 180° umgelenkt. Bei der Einrichtung 1 der Fig. 8 wird der nicht dargestellte Kettfaden (oder Gruppe von Kettfäden) mit einem Element 51 bewegt, dessen Gewicht beim Einstellen der mittleren Position zu berücksichtigen ist. Die Federn 65 und 65' können so gewählt und eingestellt werden, dass das Pendel 2 bei nicht stromführender Spule 3 in einer Gleichgewichtsstellung ist, in der sich beispielsweise der Schwerpunkt des Pendels vertikal unter der Achse 20 befindet.With the device 1 shown in FIG. 7, an eyelet 50 is included Strand 5 controlled, at both ends of the tapes 6 and 6 'attack. The Band 6 'is deflected by rollers through 180 °. In the device 1 of FIG. 8 the not shown warp thread (or group of warp threads) with a Element 51 moves, its weight increases when the middle position is set is taken into account. The springs 65 and 65 'can be selected and adjusted in this way be that the pendulum 2 in a non-energized coil 3 Equilibrium is in which, for example, the focus of the Pendulum is located vertically under axis 20.

Fig. 9 zeigt die Verwendung von erfindungsgemässen Einrichtungen 1, 1' bei Halbdrehervorrichtungen 8 und 8': Mittels einer ersten Einrichtung 1 wird der Kettfaden 9' mit einer Lochnadel 5 bewegt. Eine Hakennadel 5b (mit einem Doppelhaken 51), die mit der Lochnadel 5 in bekannter Weise zusammenwirkt, wird mit einer zweiten Einrichtung 1' betätigt. Mit dieser zweiten Einrichtung 1' werden simultan Elemente 5a und 5a', die Hilfskantenschäfte 55, 55' tragen, auf und ab in einer gegengleichen Weise bewegt. Das Pendel 2' der Einrichtung 1' umfasst zwei Segmentplatten 2a, 2b mit verschiedenen Radien. Die Hakennadel 5b steht mit der Segmentplatte 2b mit dem grösseren Radius in Verbindung. Entsprechend ergibt sich ein grösserer Hub als für die Hilfskantenschäfte 55, 55'. Zur Herstellung einer Dreherkante sind solche unterschiedliche Hübe vorzusehen. Eine raumfeste Platte 80 - siehe auch das Schrägbild in Fig. 10 - ist zwischen den Halbdreherelementen 8 und 8' angeordnet. Durch Kanten dieser Platte 80 ergeben sich in bekannter Weise erforderliche Umlenkungen der Kettfäden 9 und 9'.9 shows the use of devices 1, 1 'according to the invention Half-turn devices 8 and 8 ': By means of a first device 1 Warp thread 9 'moved with a needle 5. A hook needle 5b (with a Double hook 51) with the perforated needle 5 in a known manner cooperates, is operated with a second device 1 '. With this second device 1 'are simultaneously elements 5a and 5a' which Wear auxiliary edge shafts 55, 55 ', up and down in an opposite manner emotional. The pendulum 2 'of the device 1' comprises two segment plates 2a, 2b with different radii. The hook needle 5b stands with the segment plate 2b associated with the larger radius. Accordingly there is a greater stroke than for the auxiliary edge shafts 55, 55 '. To make one Such different strokes must be provided for the leno edge. A fixed Plate 80 - see also the oblique image in Fig. 10 - is between the Half-turn elements 8 and 8 'arranged. By edging this plate 80 necessary deflections of the warp threads 9 result in a known manner and 9 '.

Es ist auch eine Vorrichtung zum Bilden einer Dreherkante bekannt, die zwei Hebelitzen, die gegengleich zu bewegen sind, und eine Halblitze umfasst (DE-A 40 00 035). Diese Vorrichtung lässt sich mit nur einer Einrichtung gemäss der Erfindung betätigen.A device for forming a leno edge is also known, the two Lever healds, which are to be moved in opposite directions, and comprise a half heald (DE-A 40 00 035). This device can be done with only one device operate according to the invention.

Die Gleichgewichtslage bei stromloser Spule kann mit zusätzlichen Permanentmagneten beeinflusst werden. Dabei muss mindestens ein Magnet auf dem Pendel angeordnet sein: beispielsweise im inneren Bereich der ringförmigen Spule (keine Figur). The equilibrium position when the coil is de-energized can be increased Permanent magnets are influenced. At least one magnet must be used be arranged on the pendulum: for example in the inner area of the annular coil (no figure).

Bei den beschriebenen Beispielen werden die Kettfäden einzeln bewegt. Sie können aber auch gruppenweise zusammengefasst bewegt werden, wie es beispielsweise für Jacquard-Fachbildevorrichtungen bekannt ist. Die Elemente zum Bewegen von Kettfäden werden dabei durch Organe ersetzt, mittels derer jeweils eine Gruppe von Kettfäden gleichzeitig bewegbar ist.In the examples described, the warp threads are moved individually. she but can also be moved together in groups, like it is known for example for jacquard shedding devices. The Elements for moving warp threads are replaced by organs, by means of which a group of warp threads can be moved simultaneously.

Webmaschinen können mit einer Mehrzahl von Einrichtungen gemäss der Erfindung ausgerüstet werden. Dies ist besonders dann vorteilhaft, wenn die Webmaschine mittels einer elektronischen und progammierbaren Steuerung betrieben wird. Ein Prozessor für eine solche Steuerung kann auch für die Steuerung der erfindungsgemässen Einrichtungen verwendet werden. Die Ströme der Spulen können so automatisch einstellbar programmiert werden und zwar so, dass sie Werte annehmen, die den Kettfadentypen entsprechend vorgegeben sind.Looms can be equipped with a variety of facilities according to the Invention are equipped. This is particularly advantageous if the Weaving machine using an electronic and programmable control is operated. A processor for such a controller can also be used for Control of the devices according to the invention can be used. The Currents of the coils can be programmed automatically adjustable in such a way that they assume values that match the warp thread types are specified accordingly.

Claims (12)

  1. Apparatus (1) for the controlled moving of a warp thread (9) by means of a punctuate compulsory guidance between three positions, namely a middle position, an upper position and a lower position, said apparatus including a pendulum (2) which is pivotal about an axis (20) and into which an electrical coil (3) is integrated, and stationary permanent magnets (4), wherein the said positions are given by equilibrium positions of the pendulum, wherein forces which act on the pendulum in these positions are in each case in an equilibrium, wherein the equilibrium positions for the upper and the lower positions respectively can be produced by means of forces between the permanent magnets and the current carrying coil and wherein the equilibrium position for the middle position is given by the pendulum with a current-less coil.
  2. Apparatus in accordance with claim 1, characterised in that the compulsory guidance of the warp thread (9) can be carried out with an eye (50) or a hook (51) at a displaceable element (5) and this element is in operative connection with the pendulum (2) via a flexible draw means (6).
  3. Apparatus in accordance with claim 2, characterised in that the pendulum (2) has a strip-like support surface (23) for the draw means (6) and this support surface, which can be executed in groove shape, lies on a curve which is at least approximately a circle about the pendulum axis (20).
  4. Apparatus in accordance with claim 2 or claim 3, characterised in that two elements (5, 5') are provided for the moving of two warp threads (9, 9'); and in that the movement takes place in an anti-symmetrical form in such a manner that when the coil (3) carries a current the one warp thread is in the upper position and the other is in the lower position and when the coil is current-less the two warp threads are each in the middle position at the same time.
  5. Apparatus in accordance with any one of the claims 2 to 4, characterised in that the or one of the elements (5) for the moving of a warp thread (9) is replaced by a member (55) by means of which a group of warp threads can be moved at the same time.
  6. Apparatus in accordance with any one of the claims 1 to 5, characterised in that the electrical coil (3) is designed as a flat ring and the magnetic field which can be produced with the coil is oriented at least approximately parallel to the pendulum axis (20) at the ring centre-point; in that the permanent magnets (4) are designed in disc shape and are arranged parallel to the coil; and in that the magnetisations (41) of the permanent magnets are oriented the same as the said magnetic field of the coil or opposite to the latter respectively.
  7. Apparatus in accordance with any one of the claims 1 to 6, characterised in that the permanent magnets (4) each have a like configuration on ferromagnetic carrier plates (7) which are arranged on both sides of the pendulum (2).
  8. Apparatus in accordance with any one of the claims 1 to 7, characterised in that the pendulum (2) comprises at least one non-ferromagnetic sheet metal member (21), which consists in particular of aluminium, on which the coil (3) is mounted and by means of which a pendulum movement can be damped as a result of eddy currents.
  9. Apparatus in accordance with any one of the claims 1 to 8, characterised in that, for the production of the equilibrium positions for the upper and lower positions respectively, permanent magnets (4, 4a) are provided which are in each case are arranged pair-wise at one side of the pendulum (2); and in that the magnetisations (41, 42) of these permanent magnet pairs (4, 4a) are in each case oriented oppositely to one another.
  10. Weaving machine comprising a plurality of apparatuses (1) in accordance with any one of the claims 1 to 9, characterised in that the apparatuses can be actuated by means of an electronic and programmable control system, with electrical currents of the coils being settable and predeterminable in accordance with the warp thread type.
  11. Use of apparatuses in accordance with any one of the claims 1 to 8 for the formation of cloth edges, characterised in that elements (5a, 5a', 5, 5b) for the moving of edge warp threads are parts of rotator mechanisms (8, 8', 80), namely for example weaving healds (55, 55') for ground threads, leno threads, eyed needles (5) and driver or hooked needles (5b).
  12. Use of apparatuses in accordance with any one of the claims 1 to 8 for the carrying out of shed openings, characterised in that the warp threads are moved individually and/or combined together group-wise.
EP19990811031 1998-12-09 1999-11-10 Device for the controlled displacement of a weft thread Expired - Lifetime EP1016743B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP19990811031 EP1016743B1 (en) 1998-12-09 1999-11-10 Device for the controlled displacement of a weft thread

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP98811213 1998-12-09
EP98811213 1998-12-09
EP19990811031 EP1016743B1 (en) 1998-12-09 1999-11-10 Device for the controlled displacement of a weft thread

Publications (2)

Publication Number Publication Date
EP1016743A1 EP1016743A1 (en) 2000-07-05
EP1016743B1 true EP1016743B1 (en) 2003-04-16

Family

ID=26152099

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990811031 Expired - Lifetime EP1016743B1 (en) 1998-12-09 1999-11-10 Device for the controlled displacement of a weft thread

Country Status (1)

Country Link
EP (1) EP1016743B1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2299935C2 (en) * 2002-05-10 2007-05-27 Текстильма АГ Thread controlling cordless apparatus
EP1696061B1 (en) 2005-02-23 2010-06-23 ITEMA (Switzerland) Ltd. Tuck-in device
DE202011103312U1 (en) * 2011-06-30 2011-11-08 Gebrüder Klöcker GmbH Device for forming a leno selvedge
IT202000014749A1 (en) * 2020-06-19 2021-12-19 Textilma Ag ACTUATOR GROUP FOR A TEXTILE MACHINE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2119053B2 (en) * 1971-04-20 1973-10-04 Peter Dipl.-Kfm. 8000 Muenchen Doehler Facility for technical training on looms
DE2133837A1 (en) * 1971-07-07 1973-01-18 Licencia Talalmanyokat SHEEP MACHINE FOR LOOMS
MC1319A1 (en) * 1980-02-18 1981-03-10 T Arvai CONTROL SYSTEM FOR LIFTING CHAIN YARNS OF A WEAVING MATERIAL
IT1230002B (en) * 1989-04-21 1991-09-20 Somet Soc Mec Tessile MOBILE DEVICE TO PERFORM THE ENGLISH BINDING OF THE EDGES OF FABRICS IN FORMATION ON WEAVING FRAMES WITHOUT SHUTTLES.
IT1248716B (en) * 1990-06-11 1995-01-26 Vamatex Spa DEVICE FOR THE REGULATION OF THE VOLTAGE AND THE RECOVERY OF THE WEFT WIRE IN WEAVING FRAMES
EP0737764B1 (en) * 1995-04-13 1999-07-07 Sulzer RàœTi Ag Device to form a leno weave
FR2735795B1 (en) * 1995-06-20 1997-07-18 Icbt Diederichs Sa DEVICE FOR MAKING A FALSE SELVAGE WITH NO GAS ON A WEAVING MACHINE

Also Published As

Publication number Publication date
EP1016743A1 (en) 2000-07-05

Similar Documents

Publication Publication Date Title
DE3446567C1 (en) Weft brake with gradually controllable braking effect
AT520088A4 (en) Method for operating a transport device in the form of a long-stator linear motor
EP0943023B1 (en) Device for controlling the transverse movement of at least one thread in a textile machine
EP3425780A1 (en) Transport device in the form of a linear motor with guideway stator
EP1016743B1 (en) Device for the controlled displacement of a weft thread
EP2382346B1 (en) Device for driving a shuttle in the reed of a circular loom without contact
DD240223A1 (en) PATTERN CONTROL DEVICE FOR TEXTILE MACHINES
EP0107099A1 (en) Device to control a single heald in a loom having a shedding mechanism
EP2069564B1 (en) Shedding apparatus for a weaving machine, in particular for a ribbon weaving machine
AT504348B1 (en) circular loom
EP3822401B1 (en) Device for manufacturing a tissue and method for same
CH660041A5 (en) SHEDDING DEVICE FOR TEXTILE MACHINES, ESPECIALLY WEAVING MACHINES.
EP1874987B1 (en) Jacquard machine comprising a bistable element which is used to lift and lower warp threads
DE10159403B4 (en) knitting machine
DE69908874T2 (en) Shedding mechanism for jacquard machines
EP2683862B1 (en) Dobby loom and corresponding weaving method
DE4028390A1 (en) ELECTROMAGNETICALLY WORKING JACQUARD CONTROL DEVICE
DE3910487C2 (en)
EP2126172B1 (en) Device for controlling the transverse movement of the warp threads of a textile weaving machine
DE3222581C2 (en) Electromagnetically controllable clutch of a textile machine
AT406965B (en) DEVICE FOR SPECIALIZING FOR A JACQUARD MACHINE
WO1999004075A1 (en) Drive system for at least one heald shaft of a mechanical loom
WO2019015866A1 (en) Circular weaving machine
DE1535249B1 (en) TECHNICAL DEVICE FOR WEAVING MACHINES
WO2017125357A1 (en) Electromotively operating device for forming a leno selvedge, in particular for a loom, and projectile loom having such a device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE IT

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20001207

AKX Designation fees paid

Free format text: CH DE IT LI

RBV Designated contracting states (corrected)

Designated state(s): BE DE IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 20020125

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SULTEX AG

AK Designated contracting states

Designated state(s): BE DE IT

REF Corresponds to:

Ref document number: 59905063

Country of ref document: DE

Date of ref document: 20030522

Kind code of ref document: P

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040119

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20091120

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20091020

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20091110

Year of fee payment: 11

BERE Be: lapsed

Owner name: *SULTEX A.G.

Effective date: 20101130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101130

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59905063

Country of ref document: DE

Effective date: 20110601

Ref country code: DE

Ref legal event code: R119

Ref document number: 59905063

Country of ref document: DE

Effective date: 20110531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20101110