EP2540885B1 - Device for forming a leno selvedge - Google Patents

Device for forming a leno selvedge Download PDF

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Publication number
EP2540885B1
EP2540885B1 EP12003912.8A EP12003912A EP2540885B1 EP 2540885 B1 EP2540885 B1 EP 2540885B1 EP 12003912 A EP12003912 A EP 12003912A EP 2540885 B1 EP2540885 B1 EP 2540885B1
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European Patent Office
Prior art keywords
needles
pair
head
frame
afore
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EP12003912.8A
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German (de)
French (fr)
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EP2540885A3 (en
EP2540885A2 (en
Inventor
Kurt Hockemeyer
Christoph Dr. Schwemmlein
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Gebrueder Kloecker GmbH
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Gebrueder Kloecker GmbH
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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00Leno or similar shedding mechanisms
    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00Leno or similar shedding mechanisms
    • D03C7/06Mechanisms having eyed needles for moving warp threads from side to side of other warp threads

Definitions

  • the invention relates to a device for forming a leno selvedge comprising a frame for placement on the heald frames of a weaving machine, wherein the frame has at least one pair of needles for two leno threads, wherein the pair of pins are pivotally mounted about the longitudinal axis of the frame in the frame, wherein for pivoting the at least one needle pair, the device has a pivot drive.
  • a device is from the JP 10-18143 known.
  • an edge apparatus of the type mentioned is known, which is characterized by a frame, wherein in the frame at least one pair of pins is arranged, wherein the pair of pins is aligned parallel to the longitudinal axis of the frame and also about the longitudinal axis of the frame is pivotable.
  • the frame itself is attached to the first weave shaft.
  • Such an edge apparatus is particularly suitable for setting glass fiber threads or yarns to a leno edge in a corresponding fabric.
  • the two needles of the needle pair have each end an eyelet for performing a leno thread.
  • the frame In the region of the needle pair, the frame has a longitudinally extending to the frame slot through which the ground thread is guided.
  • the standing thread in conjunction with the two leno threads guided through the eyelets of the needles and the weft thread, causes the edge to set, with the weft thread extending transversely to the ground thread.
  • an electromagnetic drive is known for the alternating pivoting of the at least one pair of needles about the longitudinal axis of the frame according to the known embodiment.
  • the electromagnetic drive comprises an axle mounted in a coil, such a drive having various disadvantages.
  • a drive is relatively heavy; This is particularly noticeable insofar as this drive must be moved by the drive for the heddle shafts. That is, a higher weight on the heald frames requires a higher drive power of the drive of the loom.
  • a drive is relatively slow, ie, such a drive is not applicable to looms with shot numbers of 700 rounds and more.
  • an electromagnetic drive is also highly imprecise, which is why it can not be guaranteed that after each shot of the weft is also tied off properly. Equally low is the efficiency.
  • the object underlying the invention is therefore to provide in a device of the type mentioned for a drive which is very easy to keep the drive power of the weaving machine for the movement of the healds low, which also works precisely, only in low dirt susceptible, and has a high efficiency.
  • a drive for a device of the type mentioned, which satisfies these premises is characterized in that the pivot drive comprises a carrier having at least two superposed spaced apart permanent magnets to form an air gap, wherein one pivotally mounted on an axis of the frame Moving member is provided, wherein the moving member has a head with at least one coil, wherein the head is in the air gap, wherein the moving member is connected at the end opposite the head with the at least one pair of pins.
  • the pivot drive is symmetrical and is also arranged symmetrically on the frame. It follows immediately that during operation of the weaving machine, the shafts on which the racks of the devices for forming a leno selvedge are substantially no moments experienced by the operation of the drives for the needles.
  • the planar extent of the two magnets corresponds approximately to twice the area which is surrounded by the coil in the head, plus the area which is covered by the coil itself.
  • the superposed permanent magnets have opposite polarizations, i. E. h., That each of the two opposing magnets has a different polarization at both ends.
  • the polarization at the ends of the two magnets is made such that the ends of one magnet are reversely polarized to the ends of the other opposing magnet. It follows that two magnets are arranged opposite each other, which, however, can be physically formed in each case by a magnet.
  • the head of the moving member has the coil with two terminals.
  • the head with the coil is now repelled alternately from one side of the opposing magnets, however, attracted by the other side of the opposing magnets.
  • the realization of this principle leads to an alternating pivoting movement with high frequency. That is, such a drive is particularly suitable for looms with shot numbers of 600 to 700 rounds per minute and more.
  • the carrier has a circular segment-shaped carrier head with lateral cheeks, wherein between the cheeks of at least a first permanent magnet and forming an air gap to the first permanent magnet at least a second permanent magnet the carrier head is disposed above the first magnet.
  • the second permanent magnet is in this case advantageously arranged on a carrier cover which is fastened on the cheeks.
  • the drive is also dirt susceptible to only a small extent, since the head of the moving member moves in an air gap which is limited only laterally by the cheeks. Since the drive is arranged vertically aligned with the frame of the leno selvedge device, so no dirt can accumulate in the region of the head of the moving member. Any accumulating dirt can easily be blown off. That is, the risk of wear between the head for the coil and the permanent magnet is low.
  • the pivot drive On a pivoting device.
  • the pivoting device By the pivoting device, the pivotal movement of the moving member is converted into a rotational movement of the at least one pair of needles.
  • the pivoting device comprises a dome arm arranged on the movement member, which is connected by a deflection device to the at least one pair of needles.
  • the leno selector device is designated overall by 1.
  • the leno selvedge device 1 has a frame 2 with two frame rails 3 extending parallel to one another, wherein the pivot drive designated by 20 is received by the frame.
  • the pivot drive shows a moving member 25, wherein the moving member 25 is connected by a coupling arm 30, by a pivoting device 40 and by a deflecting device 50 with the two pairs of needles 60.
  • the frame 2 also shows at the end in each case a shank holder 4 for attachment to the first weaving shank.
  • a yarn guide 7 At the upper end of a yarn guide 7 is provided with four eyelets, which are performed by this yarn guide 7 with four eyelets correspondingly four leno threads 9, which are guided down through the eyelets 62 of the needles 61 of the respective pair of needles.
  • the ground thread 10 runs, which is led out accordingly from the back by a guide in the frame to the front.
  • the guide is provided by a slot 8 in the frame 2 ( Fig. 1a ).
  • Each pair of needles here is assigned a slot 8.
  • the leno threads run from the back through the thread guide down through the eyelets of the needles forward and backward of the frame 2 away.
  • Both the leno threads and the ground threads are in Fig. 1a when Dashed lines drawn. In Fig. 1 both the leno threads 9 and the ground threads 10 are not shown.
  • the pivot drive designated 20 comprises a carrier 21 with a carrier head 21 a, which has a cheek 22 on both sides.
  • the carrier head in this case consists of advantageously magnetizable material.
  • the head 26 of the coil 26a is formed of electrically non-conductive material; between the cheeks 22 is located on the carrier head 21 a, a first permanent magnet 24, as is in the view of Fig. 3 results.
  • the permanent magnet 24 is as already stated on the carrier head 21 a, and is bordered by the cheeks 22.
  • the cheeks 22 in this case also form a stop for the head 26 of the movement member 25. This will be discussed elsewhere.
  • the cheeks also take on the lid 27, wherein on the lid 27, a second permanent magnet 24a is arranged, which is formed in the same manner as the permanent magnet 24, with the difference that the polarizations of the two magnets on their sides facing each other are different, as is also the representation according to Fig. 3 can be removed. Between the two permanent magnets 24, 24a is an air gap 29, wherein in the air gap 29 of the head 26 of the moving member 25 superimposed.
  • the moving member 25 is connected to the carrier 21 through the axis 30.
  • the size of the coil (areal extent) in the head 26 of the moving member 25 corresponds approximately to the area of one half of a permanent magnet 24, 24a.
  • the coil 26a further shows the terminals 26b, the terminals 26b being connected to a reversible voltage source (not shown) in communication with a controller.
  • a reversible voltage source not shown
  • the head 26 of electrically non-conductive material of the moving member 25 performs an oscillating movement between the two cheeks, wherein the oscillating movement is electrically caused by repelled by the polarity reversal, the coil of the one half of the magnet and the other Magnet half of the two permanent magnets 24, 24a is tightened. By reversing this happens mutually each.
  • the mode of operation is similar to a stepper motor.
  • the cheeks 22 may in this case form the stop for the head when the polarity reversal z. B. takes place too late. It is also conceivable that the needle pairs strike the frame, so that the frame can act as a stop.
  • the movement member 25 is connected via a pivoting device 40 and a deflection device 50 with the two pairs of needles 60.
  • the pivoting device 40 in this case comprises the dome arm 41 and a slider 42, wherein the slider rests on a guide block 43 movable.
  • the guide block 43 is formed as an angle, and has on his in the drawing according to Fig. 4 horizontal leg two holes 44th
  • the two pairs of needles 60 are connected via the deflection device 50 on the one hand to the guide block 43 and on the other hand to the slider 42.
  • the deflecting device 50 comprises in each case a carrier body 51 which holds the two needles 61 of the needle pair 60 standing in a row. Standing behind one another hereby means standing in the direction of the ground thread running behind one another.
  • the support body 50 shows an axis 52, wherein the axis 52 has a pivot arm 53, which in turn has a pivot pin 54 which extends parallel to the axis 52.
  • the pivot pin 54 of each pair of pins 60 rests in a bore 47 of the slider 42nd
  • the needles 61 of a pair of needles 60 are advantageously of different lengths, the rear needle being advantageously longer than the front needle.
  • the different length ensures that the leno threads guided by the eyelets in the needles can safely cross the ground thread.

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

Abstract

The device (1) has a frame for arranging in web shafts of a loom, where the frame comprises a pair of needles (60) pivotably supported around a longitudinal axis. A vane drive (20) pivots the needle pair and comprises a carrier with permanent magnets by forming an air gap. The magnets are arranged one above the other at a distance to each other. A motion element (25) is pivotably arranged in an axle of the frame with a head in the air gap. An end of the motion element stands in connection with the needle pair and arranged opposite to the head. The head is made of magnetizable material.

Description

Die Erfindung betrifft eine Vorrichtung zum Bilden einer Dreherkante umfassend ein Gestell zur Anordnung an den Webschäften einer Webmaschine, wobei das Gestell mindestens ein Nadelpaar für zwei Dreherfäden aufweist, wobei das Nadelpaar um die Längsachse des Gestells verschwenkbar in dem Gestell gelagert sind, wobei zur Verschwenkung des mindestens einen Nadelpaares die Vorrichtung einen Schwenkantrieb aufweist. Eine solche Vorrichtung ist aus der JP 10-18143 bekannt.The invention relates to a device for forming a leno selvedge comprising a frame for placement on the heald frames of a weaving machine, wherein the frame has at least one pair of needles for two leno threads, wherein the pair of pins are pivotally mounted about the longitudinal axis of the frame in the frame, wherein for pivoting the at least one needle pair, the device has a pivot drive. Such a device is from the JP 10-18143 known.

Aus der DE -A- 1814269 ist ein Kantenapparat der eingangs genannten Art bekannt, der sich durch ein Gestell auszeichnet, wobei in dem Gestell mindestens ein Nadelpaar angeordnet ist, wobei das Nadelpaar parallel zur Längsachse des Gestells ausgerichtet ist und auch um die Längsachse des Gestells verschwenkbar ist. Das Gestell selbst ist am ersten Webschaft befestigt. Ein solcher Kantenapparat eignet sich insbesondere zum Abbinden von Glasfaserfäden oder -garnen zu einer Dreherkante bei einem entsprechenden Gewebe. Die beiden Nadeln des Nadelpaares besitzen endseitig jeweils eine Öse zur Durchführung eines Dreherfadens. Im Bereich des Nadelpaares besitzt das Gestell einen sich längs zum Gestell erstreckenden Schlitz, durch den der Steherfaden geführt ist. Der Steherfaden sorgt in Verbindung mit den beiden durch die Ösen der Nadeln geführten Dreherfäden und dem Schussfaden für eine Abbindung der Kante, wobei der Schussfaden quer zum Steherfaden verläuft. Für die alternierende Verschwenkung des mindestens einen Nadelpaares um die Längsachse des Gestelles ist nach der bekannten Ausführungsform ein elektromagnetischer Antrieb bekannt.From the DE -A- 1814269 an edge apparatus of the type mentioned is known, which is characterized by a frame, wherein in the frame at least one pair of pins is arranged, wherein the pair of pins is aligned parallel to the longitudinal axis of the frame and also about the longitudinal axis of the frame is pivotable. The frame itself is attached to the first weave shaft. Such an edge apparatus is particularly suitable for setting glass fiber threads or yarns to a leno edge in a corresponding fabric. The two needles of the needle pair have each end an eyelet for performing a leno thread. In the region of the needle pair, the frame has a longitudinally extending to the frame slot through which the ground thread is guided. The standing thread, in conjunction with the two leno threads guided through the eyelets of the needles and the weft thread, causes the edge to set, with the weft thread extending transversely to the ground thread. For the alternating pivoting of the at least one pair of needles about the longitudinal axis of the frame according to the known embodiment, an electromagnetic drive is known.

Der elektromagnetische Antrieb umfasst eine in einer Spule gelagerte Achse, wobei ein solcher Antrieb verschiedene Nachteile aufweist. So ist ein solcher Antrieb verhältnismäßig schwer; dies macht sich insbesondere insofern bemerkbar, als dieser Antrieb durch den Antrieb für die Webschäfte mitbewegt werden muss. Das heißt, ein höheres Gewicht an den Webschäften bedingt eine höhere Antriebsleistung des Antriebs der Webmaschine. Darüber hinaus ist ein solcher Antrieb relativ gesehen langsam, d. h., ein solcher Antrieb ist nicht einsetzbar bei Webmaschinen mit Schusszahlen von 700 Schuss und mehr. Darüber hinaus ist ein elektromagnetischer Antrieb auch in hohem Maße unpräzise, weshalb nicht gewährleistet werden kann, dass nach jedem Schuss der Schussfaden auch ordnungsgemäß abgebunden wird. Gleichfalls gering ist der Wirkungsgrad.The electromagnetic drive comprises an axle mounted in a coil, such a drive having various disadvantages. Such a drive is relatively heavy; This is particularly noticeable insofar as this drive must be moved by the drive for the heddle shafts. That is, a higher weight on the heald frames requires a higher drive power of the drive of the loom. In addition, such a drive is relatively slow, ie, such a drive is not applicable to looms with shot numbers of 700 rounds and more. In addition, an electromagnetic drive is also highly imprecise, which is why it can not be guaranteed that after each shot of the weft is also tied off properly. Equally low is the efficiency.

Die der Erfindung zugrunde liegende Aufgabe besteht demzufolge darin, bei einer Vorrichtung der eingangs genannten Art für einen Antrieb zu sorgen, der sehr leicht ist, um die Antriebsleistung der Webmaschine für die Bewegung der Webschäfte gering zu halten, der darüber hinaus präzise arbeitet, nur in geringem Maße schmutzanfällig ist, und einen hohen Wirkungsgrad aufweist.The object underlying the invention is therefore to provide in a device of the type mentioned for a drive which is very easy to keep the drive power of the weaving machine for the movement of the healds low, which also works precisely, only in low dirt susceptible, and has a high efficiency.

Ein Antrieb für eine Vorrichtung der eingangs genannten Art, der diesen Prämissen genügt, zeichnet sich dadurch aus, dass der Schwenkantrieb einen Träger umfasst, der unter Bildung eines Luftspaltes mindestens zwei übereinander beabstandet zueinander angeordnete Permanentmagnete aufweist, wobei ein auf einer Achse des Gestells schwenkbar angeordnetes Bewegungsglied vorgesehen ist, wobei das Bewegungsglied einen Kopf mit mindestens einer Spule aufweist, wobei sich der Kopf in dem Luftspalt befindet, wobei das Bewegungsglied an dem dem Kopf gegenüberliegenden Ende mit dem mindestens einen Nadelpaar in Verbindung steht. Hieraus wird deutlich, dass der beschriebene Antrieb nach Art eines Schrittmotors ausgebildet ist, wobei sich ein solcher Schrittmotor durch einen hohen Wirkungsgrad auszeichnet, durch eine hohe Geschwindigkeit und eine hohe Verschleißfreiheit.A drive for a device of the type mentioned, which satisfies these premises, is characterized in that the pivot drive comprises a carrier having at least two superposed spaced apart permanent magnets to form an air gap, wherein one pivotally mounted on an axis of the frame Moving member is provided, wherein the moving member has a head with at least one coil, wherein the head is in the air gap, wherein the moving member is connected at the end opposite the head with the at least one pair of pins. From this it is clear that the described drive is designed in the manner of a stepper motor, with such a stepping motor being characterized by high efficiency, high speed and high freedom from wear.

Vorteilhafte Merkmale und Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen.Advantageous features and embodiments of the invention will become apparent from the dependent claims.

So ist insbesondere vorgesehen, dass der Schwenkantrieb symmetrisch ausgebildet ist und auch symmetrisch am Gestell angeordnet ist. Hieraus folgt unmittelbar, dass beim Betrieb der Webmaschine die Schäfte auf denen die Gestelle der Vorrichtungen zum Bilden einer Dreherkante angeordnet sind, im Wesentlichen keine Momente durch den Betrieb der Antriebe für die Nadeln erfahren.Thus, it is provided in particular that the pivot drive is symmetrical and is also arranged symmetrically on the frame. It follows immediately that during operation of the weaving machine, the shafts on which the racks of the devices for forming a leno selvedge are substantially no moments experienced by the operation of the drives for the needles.

Nach einem weiteren Merkmal der Erfindung entspricht die flächige Erstreckung der beiden Magnete in etwa dem doppelten der Fläche, die von der Spule in dem Kopf umgeben ist, zuzüglich der Fläche, die von der Spule selbst abgedeckt wird. Darüber hinaus weisen die übereinander angeordneten Permanentmagnete einander entgegengesetzte Polarisierungen auf, d. h., dass ein jeder der beiden einander gegenüberliegenden Magnete zu beiden Enden jeweils eine unterschiedliche Polarisierung besitzt. Hierbei ist die Polarisierung an den Enden der beiden Magnete derart getroffen, dass die Enden des einen Magneten zu den Enden des anderen gegenüberliegenden Magneten umgekehrt polarisiert sind. Hieraus ergibt sich, dass jeweils zwei Magnete einander gegenüberliegend angeordnet sind, die allerdings physisch jeweils durch einen Magnet gebildet werden können.According to a further feature of the invention, the planar extent of the two magnets corresponds approximately to twice the area which is surrounded by the coil in the head, plus the area which is covered by the coil itself. Moreover, the superposed permanent magnets have opposite polarizations, i. E. h., That each of the two opposing magnets has a different polarization at both ends. Here, the polarization at the ends of the two magnets is made such that the ends of one magnet are reversely polarized to the ends of the other opposing magnet. It follows that two magnets are arranged opposite each other, which, however, can be physically formed in each case by a magnet.

Der Kopf des Bewegungsgliedes weist die Spule mit zwei Anschlüssen auf. Durch eine entsprechende Umpolung der an den Anschlüssen angeschlossenen Spannungsquelle wird nun der Kopf mit der Spule jeweils wechselseitig von der einen Seite der einander gegenüberliegenden Magnete abgestoßen, hingegen von der anderen Seite der einander gegenüberliegenden Magnete angezogen. Die Verwirklichung dieses Prinzips führt zu einer alternierenden Schwenkbewegung mit hoher Frequenz. Das heißt, ein solcher Antrieb eignet sich insbesondere für Webmaschinen mit Schusszahlen von 600 bis 700 Schuss pro Minute und mehr. Konstruktiv ist in Bezug auf die Ausbildung des Schwenkantriebes vorgesehen, dass der Träger einen kreissegmentförmigen Trägerkopf mit seitlichen Wangen aufweist, wobei zwischen den Wangen der mindestens eine erste Permanentmagnet und unter Bildung eines Luftspaltes zu dem ersten Permanentmagnet mindestens ein zweiter Permanentmagnet an dem Trägerkopf über dem ersten Magneten angeordnet ist. Der zweite Permanentmagnet ist hierbei vorteilhaft an einem Trägerdeckel angeordnet, der auf den Wangen befestigt ist. Es ergibt sich somit eine sehr einfache konstruktive Lösung, die zudem preiswert in der Herstellung ist. Der Antrieb ist auch nur in geringem Maße schmutzanfällig, da der Kopf des Bewegungsgliedes sich in einem Luftspalt bewegt, der nur seitlich durch die Wangen begrenzt ist. Da der Antrieb vertikal ausgerichtet an dem Gestell der Dreherkantenvorrichtung angeordnet ist, kann sich somit im Bereich des Kopfes des Bewegungsgliedes kein Schmutz ansammeln. Etwaiger sich dennoch ansammelnder Schmutz kann leicht abgeblasen werden. Das heißt, die Gefahr des Verschleißes zwischen dem Kopf für die Spule und den Permanentmagneten ist gering.The head of the moving member has the coil with two terminals. By a corresponding polarity reversal of the voltage source connected to the terminals, the head with the coil is now repelled alternately from one side of the opposing magnets, however, attracted by the other side of the opposing magnets. The realization of this principle leads to an alternating pivoting movement with high frequency. That is, such a drive is particularly suitable for looms with shot numbers of 600 to 700 rounds per minute and more. It is structurally provided with respect to the design of the pivot drive that the carrier has a circular segment-shaped carrier head with lateral cheeks, wherein between the cheeks of at least a first permanent magnet and forming an air gap to the first permanent magnet at least a second permanent magnet the carrier head is disposed above the first magnet. The second permanent magnet is in this case advantageously arranged on a carrier cover which is fastened on the cheeks. This results in a very simple constructive solution, which is also inexpensive to manufacture. The drive is also dirt susceptible to only a small extent, since the head of the moving member moves in an air gap which is limited only laterally by the cheeks. Since the drive is arranged vertically aligned with the frame of the leno selvedge device, so no dirt can accumulate in the region of the head of the moving member. Any accumulating dirt can easily be blown off. That is, the risk of wear between the head for the coil and the permanent magnet is low.

Zur Übertragung der Schwenkbewegung des Bewegungsgliedes auf das mindestens eine Nadelpaar weist der Schwenkantrieb eine Schwenkeinrichtung auf. Durch die Schwenkeinrichtung wird die Schwenkbewegung des Bewegungsgliedes in eine rotatorische Bewegung des mindestens einen Nadelpaares umgesetzt. Hierzu umfasst die Schwenkeinrichtung einen am Bewegungsglied angeordneten Kuppelarm, der durch eine Umlenkeinrichtung mit dem mindestens einen Nadelpaar in Verbindung steht.For transmitting the pivoting movement of the movement member to the at least one pair of needles, the pivot drive on a pivoting device. By the pivoting device, the pivotal movement of the moving member is converted into a rotational movement of the at least one pair of needles. For this purpose, the pivoting device comprises a dome arm arranged on the movement member, which is connected by a deflection device to the at least one pair of needles.

Anhand der Zeichnungen wird die Erfindung nachstehend beispielhaft näher erläutert.

Fig. 1
zeigt die Vorrichtung in einer perspektivischen Ansicht von vorne in einer Ausführungsform mit zwei Nadelpaaren;
Fig. 1a
zeigt schematisch einen Schnitt gemäß der Linie la/la aus Fig. 1;
Fig. 2
zeigt in perspektivischer Darstellung den Schwenkantrieb;
Fig. 3
zeigt den Schwenkantrieb gemäß Fig. 2 in Explosionsdarstellung;
Fig. 4
zeigt ebenfalls in Explosionsdarstellung die Verbindung des Schwenkantriebes mit den beiden Nadelpaaren durch die Umlenkeinrichtung, wobei nur die wesentlichen Teile dargestellt sind.
With reference to the drawings, the invention will be explained in more detail below by way of example.
Fig. 1
shows the device in a perspective view from the front in an embodiment with two pairs of needles;
Fig. 1a
schematically shows a section according to the line la / la Fig. 1 ;
Fig. 2
shows a perspective view of the pivot drive;
Fig. 3
shows the rotary actuator according to Fig. 2 in exploded view;
Fig. 4
also shows in exploded view, the connection of the pivot drive with the two pairs of needles through the deflection, with only the essential parts are shown.

Die Dreherkantenvorrichtung ist insgesamt mit 1 bezeichnet. Die Dreherkantenvorrichtung 1 besitzt ein Gestell 2 mit zwei parallel zueinander verlaufenden Gestellschienen 3, wobei durch das Gestell der mit 20 bezeichnete Schwenkantrieb aufgenommen wird. Der Schwenkantrieb zeigt ein Bewegungsglied 25, wobei das Bewegungsglied 25 durch einen Kuppelarm 30, durch eine Schwenkeinrichtung 40 und durch eine Umlenkeinrichtung 50 mit den beiden Nadelpaaren 60 in Verbindung steht. Das Gestell 2 zeigt darüber hinaus endseitig jeweils einen Schafthalter 4 zur Befestigung an dem ersten Webschaft. Am oberen Ende ist ein Fadenführer 7 mit vier Ösen vorgesehen, wobei durch diesen Fadenführer 7 mit den vier Ösen entsprechend vier Dreherfäden 9 durchgeführt werden, die nach unten durch die Ösen 62 der Nadeln 61 des jeweiligen Nadelpaares geführt werden. Zwischen den Nadeln eines Nadelpaares verläuft der Steherfaden 10, der entsprechend von hinten durch eine Führung in dem Gestell nach vorne herausgeführt wird. Die Führung wird durch einen Schlitz 8 im Gestell 2 bereitgestellt (Fig. 1a). Jedem Nadelpaar ist hierbei ein Schlitz 8 zugeordnet. In gleicher Weise verlaufen auch die Dreherfäden von hinten durch den Fadenführer nach unten durch die Ösen der Nadeln nach vorne und nach hinten jeweils von dem Gestell 2 weg. Sowohl die Dreherfäden als auch die Steherfäden sind in Fig. 1a als gestrichelte Linien eingezeichnet. In Fig. 1 sind sowohl die Dreherfäden 9 als auch die Steherfäden 10 nicht eingezeichnet.The leno selector device is designated overall by 1. The leno selvedge device 1 has a frame 2 with two frame rails 3 extending parallel to one another, wherein the pivot drive designated by 20 is received by the frame. The pivot drive shows a moving member 25, wherein the moving member 25 is connected by a coupling arm 30, by a pivoting device 40 and by a deflecting device 50 with the two pairs of needles 60. The frame 2 also shows at the end in each case a shank holder 4 for attachment to the first weaving shank. At the upper end of a yarn guide 7 is provided with four eyelets, which are performed by this yarn guide 7 with four eyelets correspondingly four leno threads 9, which are guided down through the eyelets 62 of the needles 61 of the respective pair of needles. Between the needles of a pair of pins, the ground thread 10 runs, which is led out accordingly from the back by a guide in the frame to the front. The guide is provided by a slot 8 in the frame 2 ( Fig. 1a ). Each pair of needles here is assigned a slot 8. In the same way, the leno threads run from the back through the thread guide down through the eyelets of the needles forward and backward of the frame 2 away. Both the leno threads and the ground threads are in Fig. 1a when Dashed lines drawn. In Fig. 1 both the leno threads 9 and the ground threads 10 are not shown.

Im Folgenden soll nun zunächst der Schwenkantrieb 20 beschrieben werden. Hierzu wird Bezug genommen zunächst auf die Fig. 2 und nachfolgend auf die Explosionsdarstellung gemäß Fig. 3. Aus der Fig. 2 ist erkennbar, dass der mit 20 bezeichnete Schwenkantrieb einen Träger 21 mit einem Trägerkopf 21 a umfasst, der zu beiden Seiten jeweils eine Wange 22 aufweist. Der Trägerkopf besteht hierbei aus vorteilhaft magnetisierbarem Material. Auch der Kopf 26 der Spule 26a ist aus elektrisch nicht leitfähigem Material ausgebildet; zwischen den Wangen 22 befindet sich auf dem Trägerkopf 21 a ein erster Permanentmagnet 24, wie sich dies in Anschauung von Fig. 3 ergibt. Der in Fig. 3 mit 24 bezeichnete Permanentmagnet weist eine Mittellinie auf, die allerdings lediglich die Aufgabe hat zu verdeutlichen, dass der eigentlich körperlich einstückige Magnet elektrisch zwei Magnete beinhaltet, bedingt dadurch, dass zu jeder Seite des Permanentmagneten, wie sich dies auch aus der Fig. 3 ergibt, die Magnete eine unterschiedliche Polarisierung aufweisen. Der Permanentmagnet 24 befindet sich wie bereits ausgeführt auf dem Trägerkopf 21 a, und wird durch die Wangen 22 eingefasst. Die Wangen 22 bilden hierbei auch einen Anschlag für den Kopf 26 des Bewegungsgliedes 25. Hierauf wird an anderer Stelle noch eingegangen werden. Die Wangen nehmen darüber hinaus den Deckel 27 auf, wobei an dem Deckel 27 ein zweiter Permanentmagnet 24a angeordnet ist, der in gleicher Weise ausgebildet ist, wie der Permanentmagnet 24, mit dem Unterschied, dass die Polarisierungen der beiden Magnete auf ihren einander zugewandten Seiten jeweils unterschiedlich sind, wie sich dies ebenfalls der Darstellung gemäß Fig. 3 entnehmen lässt. Zwischen den beiden Permanentmagneten 24, 24a befindet sich ein Luftspalt 29, wobei in dem Luftspalt 29 der Kopf 26 des Bewegungsgliedes 25 lagert. Das Bewegungsglied 25 ist durch die Achse 30 mit dem Träger 21 verbunden.In the following, the pivot drive 20 will now be described first. For this purpose reference is first made to the Fig. 2 and subsequently to the exploded view according to Fig. 3 , From the Fig. 2 It can be seen that the pivot drive designated 20 comprises a carrier 21 with a carrier head 21 a, which has a cheek 22 on both sides. The carrier head in this case consists of advantageously magnetizable material. Also, the head 26 of the coil 26a is formed of electrically non-conductive material; between the cheeks 22 is located on the carrier head 21 a, a first permanent magnet 24, as is in the view of Fig. 3 results. The in Fig. 3 denoted by 24 permanent magnet has a center line, which, however, only has the task to clarify that the actually physically integral magnet electrically contains two magnets, due to the fact that to each side of the permanent magnet, as can be seen from the Fig. 3 results, the magnets have a different polarization. The permanent magnet 24 is as already stated on the carrier head 21 a, and is bordered by the cheeks 22. The cheeks 22 in this case also form a stop for the head 26 of the movement member 25. This will be discussed elsewhere. The cheeks also take on the lid 27, wherein on the lid 27, a second permanent magnet 24a is arranged, which is formed in the same manner as the permanent magnet 24, with the difference that the polarizations of the two magnets on their sides facing each other are different, as is also the representation according to Fig. 3 can be removed. Between the two permanent magnets 24, 24a is an air gap 29, wherein in the air gap 29 of the head 26 of the moving member 25 superimposed. The moving member 25 is connected to the carrier 21 through the axis 30.

Für die Funktionsweise ist nun relevant, dass die Größe der Spule (flächige Erstreckung) in dem Kopf 26 des Bewegungsgliedes 25 etwa der Fläche einer Hälfte eines Permanentmagneten 24, 24a entspricht. Die Spule 26a zeigt darüber hinaus die Anschlüsse 26b, wobei die Anschlüsse 26b an eine umpolbare Spannungsquelle (nicht dargestellt) angeschlossen werden, die mit einer Steuerung in Verbindung steht. Bei Umpolung der Spannungsquelle führt der Kopf 26 aus elektrisch nicht leitfähigem Material des Bewegungsgliedes 25 eine oszillierende Bewegung zwischen den beiden Wangen aus, wobei die oszillierende Bewegung elektrisch dadurch bewirkt wird, dass durch die Umpolung, die Spule von der einen Magnethälfte abgestoßen und von der anderen Magnethälfte der beiden Permanentmagnete 24, 24a angezogen wird. Durch die Umpolung geschieht dies jeweils wechselseitig. Die Funktionsweise ist hierbei ähnlich einem Schrittmotor. Die Wangen 22 können hierbei den Anschlag für den Kopf bilden, wenn die Umpolung z. B. zu spät erfolgt. Denkbar ist ebenfalls, dass die Nadelpaare am Gestell anschlagen, sodass auch das Gestell als Anschlag fungieren kann.For the operation is now relevant that the size of the coil (areal extent) in the head 26 of the moving member 25 corresponds approximately to the area of one half of a permanent magnet 24, 24a. The coil 26a further shows the terminals 26b, the terminals 26b being connected to a reversible voltage source (not shown) in communication with a controller. When reversing the voltage source, the head 26 of electrically non-conductive material of the moving member 25 performs an oscillating movement between the two cheeks, wherein the oscillating movement is electrically caused by repelled by the polarity reversal, the coil of the one half of the magnet and the other Magnet half of the two permanent magnets 24, 24a is tightened. By reversing this happens mutually each. The mode of operation is similar to a stepper motor. The cheeks 22 may in this case form the stop for the head when the polarity reversal z. B. takes place too late. It is also conceivable that the needle pairs strike the frame, so that the frame can act as a stop.

Das Bewegungsglied 25 ist über eine Schwenkeinrichtung 40 sowie eine Umlenkeinrichtung 50 mit den beiden Nadelpaaren 60 verbunden. Die Schwenkeinrichtung 40 umfasst hierbei den Kuppelarm 41 sowie ein Gleitstück 42, wobei das Gleitstück an einem Führungsbock 43 beweglich anliegt. Der Führungsbock 43 ist als Winkel ausgebildet, und besitzt auf seinem in der Zeichnung gemäß Fig. 4 horizontalen Schenkel zwei Bohrungen 44.The movement member 25 is connected via a pivoting device 40 and a deflection device 50 with the two pairs of needles 60. The pivoting device 40 in this case comprises the dome arm 41 and a slider 42, wherein the slider rests on a guide block 43 movable. The guide block 43 is formed as an angle, and has on his in the drawing according to Fig. 4 horizontal leg two holes 44th

Die beiden Nadelpaare 60 sind über die Umlenkeinrichtung 50 einerseits mit dem Führungsbock 43 und andererseits mit dem Gleitstück 42 verbunden. Die Umlenkeinrichtung 50 umfasst in diesem Zusammenhang jeweils einen Tragkörper 51, der die beiden Nadeln 61 des Nadelpaares 60 hintereinander stehend aufnimmt. Hintereinander stehend bedeutet hierbei in Richtung des Steherfadens verlaufend hintereinander stehend. Der Tragkörper 50 zeigt eine Achse 52, wobei die Achse 52 einen Schwenkarm 53 aufweist, der wiederum einen Schwenkstift 54 besitzt, der sich parallel zur Achse 52 erstreckt. Der Schwenkstift 54 eines jeden Nadelpaares 60 ruht in einer Bohrung 47 des Gleitstückes 42.The two pairs of needles 60 are connected via the deflection device 50 on the one hand to the guide block 43 and on the other hand to the slider 42. In this context, the deflecting device 50 comprises in each case a carrier body 51 which holds the two needles 61 of the needle pair 60 standing in a row. Standing behind one another hereby means standing in the direction of the ground thread running behind one another. The support body 50 shows an axis 52, wherein the axis 52 has a pivot arm 53, which in turn has a pivot pin 54 which extends parallel to the axis 52. The pivot pin 54 of each pair of pins 60 rests in a bore 47 of the slider 42nd

Durch eine Schwenkbewegung des Kuppelarms 25 entsprechend dem Pfeil 49 wird nunmehr das Gleitstück 42 ebenfalls verschwenkt, mithin auch die Schwenkarme 53, wobei die an den Schwenkarmen 53 angeordneten Achsen 52 eines jeden Nadelpaares verdreht werden. Das heißt, die Nadeln verdrehen sich in Richtung des Pfeiles 65. Durch Verdrehung der Nadeln 61 des Nadelpaares 60 mit den Dreherfäden 9 um den zwischen den Nadeln geführten Steherfaden 10 erfolgt jeweils die Abbindung des Schussfadens, der nicht dargestellt ist.By a pivoting movement of the dome arm 25 corresponding to the arrow 49, the slider 42 is now also pivoted, thus also the pivot arms 53, wherein the arranged on the pivot arms 53 axes 52 of each pair of pins are rotated. That is, the needles rotate in the direction of arrow 65. By twisting the needles 61 of the needle pair 60 with the leno threads 9 to the guided between the needles ground thread 10 takes place in each case the setting of the weft thread, which is not shown.

Vorteilhaft sind hierbei die Nadeln 61 eines Nadelpaares 60 unterschiedlich lang, wobei die hintere Nadel vorteilhaft länger ist, als die vordere Nadel. Durch die unterschiedliche Länge wird sichergestellt, dass die durch die Ösen in den Nadeln geführten Dreherfäden sicher den Steherfaden kreuzen können.The needles 61 of a pair of needles 60 are advantageously of different lengths, the rear needle being advantageously longer than the front needle. The different length ensures that the leno threads guided by the eyelets in the needles can safely cross the ground thread.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
DreherkantenvorrichtungLeno selvedge device
22
Gestellframe
33
Gestellschienenframe rails
44
Schafthaltershaft holder
77
Fadenführerthread guides
88th
Schlitz für SteherfadenSlit for standing thread
99
Dreherfadenleno thread
1010
Steherfadenground thread
2020
SchwenkantriebRotary actuator
2121
Trägercarrier
21a21a
Trägerkopfcarrier head
2222
Wangecheek
24, 24a24, 24a
Permanentmagnetepermanent magnets
2525
Bewegungsgliedmover
2626
Kopfhead
26a26a
SpuleKitchen sink
26b26b
Anschlüsse der SpuleConnections of the coil
2727
Deckelcover
2929
Luftspaltair gap
3030
Achseaxis
4040
SchwenkeinrichtungPivot means
4141
Kuppelarmcoupling arm
4242
Gleitstückslide
4343
Führungsbockguide block
4444
Bohrung im FührungsbockBore in the guide block
4747
Bohrung im GleitstückBore in the slider
4949
Pfeilarrow
5050
Umlenkeinrichtungdeflecting
5151
Tragkörpersupporting body
5252
Achseaxis
5353
Schwenkarmswivel arm
5454
Schwenkstiftpivot pin
6060
Nadelpaarpair of needles
6161
Nadelneedle
6262
Öse der NadelEye of the needle
6565
Pfeilarrow

Claims (15)

  1. A device (1) for forming a leno selvedge comprising a frame (2) for arrangement on the heald shaft of a weaving machine, wherein the frame (2) comprises at least one pair of needles (60) for two leno threads (9), wherein the pair of needles (60) is mounted in the frame so as to be pivotable around the longitudinal axis of the frame (2), wherein the device comprises a swivel drive (20) for pivoting the at least one pair of needles (60),
    wherein the swivel drive (20) comprises a support (21) that comprises at least two permanent magnets (24, 24a) disposed above each other in a spaced-apart relationship thus forming an air space (29), wherein a moving member (25) is pivotably disposed on an axis (30) of the frame (2), wherein the moving member (25) comprises a head (26) with at least one coil (26a), wherein the head (26) is located in the air space (29), wherein the moving member (25) is connected with the at least one pair of needles (60) at its end facing the head (26).
  2. The device according to claim 1,
    characterized in that
    the swivel drive is symmetrically configured and is symmetrically disposed on the frame.
  3. The device according to claims 1 or 2,
    characterized in that
    the surface of extension of the two permanent magnets (24, 24a) corresponds approximately to twice the surface enclosed by the coil (26b) and the surface covered by the coil (26b) itself.
  4. The device according to one of the afore-mentioned claims,
    characterized in that
    the support (21) comprises a support head (21 a) with lateral cheeks (22), the at least one first permanent magnet (24) being disposed between the cheeks (22) and, under formation of an air space (29) relative to the first permanent magnet (24), an at least second permanent magnet (24a) is disposed above the first permanent magnet (24) on the support head (21 a).
  5. The device according to one of the afore-mentioned claims,
    characterized in that
    the second permanent magnet (24a) is disposed on a cover (27) of the support head (21 a) that is adapted to be fastened on the cheeks (22).
  6. The device according to claim 5,
    characterized in that
    the support head (21 a) is made of a magnetizable material.
  7. The device according to one of the afore-mentioned claims,
    characterized in that
    the head (26) is made of an electrically nonconductive material for receiving the at least one coil (26a).
  8. The device according to one of the claims 4 to 7,
    characterized in that
    the cheeks (22) of the support head (21 a) form the lateral limit stop for the head (26) of the moving member (25).
  9. The device according to one of the afore-mentioned claims,
    characterized in that
    the at least one coil (26a) comprises two connectors (26b) that are connectable to a pole-reversible voltage source.
  10. The device according to one of the afore-mentioned claims,
    characterized in that
    the permanent magnets (24, 24a) disposed above one another have opposed polarizations.
  11. The device according to one of the afore-mentioned claims,
    characterized in that
    the swivel drive (20) comprises a swiveling unit (40) for connection of the moving member (25) with at least one pair of needles (60)
  12. The device according to claim 11,
    characterized in that
    the swiveling unit (40) includes a coupling arm (41) disposed on the moving member (25), which is connected to the pair of needles (60) by way of a deflecting unit (50).
  13. The device according to one of the afore-mentioned claims,
    characterized in that
    the needles (61) of the pair of needles (60) have an eye (62) at their ends for the leno thread (9).
  14. The device according to one of the afore-mentioned claims,
    characterized in that
    the needles (61) of a pair of needles (60) are disposed behind one another in the direction of the course of the stationary thread (10).
  15. The device according to one of the afore-mentioned claims,
    characterized in that
    the needles (61) of a pair of needles (60) have different lengths.
EP12003912.8A 2011-06-30 2012-05-18 Device for forming a leno selvedge Active EP2540885B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011103312U DE202011103312U1 (en) 2011-06-30 2011-06-30 Device for forming a leno selvedge

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EP2540885A2 EP2540885A2 (en) 2013-01-02
EP2540885A3 EP2540885A3 (en) 2013-03-27
EP2540885B1 true EP2540885B1 (en) 2013-12-04

Family

ID=45116240

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Application Number Title Priority Date Filing Date
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Country Status (5)

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US (1) US8590578B2 (en)
EP (1) EP2540885B1 (en)
JP (1) JP5532495B2 (en)
CN (1) CN102851823B (en)
DE (1) DE202011103312U1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012009420A1 (en) * 2012-05-11 2013-11-14 Gebrüder Klöcker GmbH Device for producing a fabric
EP3162934B1 (en) * 2015-10-28 2018-03-28 Gebrüder Klöcker GmbH Device for forming a leno selvedge, in particular for a loom, and projectile weaving loom equipped with said device
EP3197029B1 (en) * 2016-01-19 2019-05-29 Gebrüder Klöcker GmbH Device using an electric motor for forming a leno selvedge, in particular for a loom, and projectile weaving loom equipped with said device
DE202018103292U1 (en) * 2018-06-12 2018-07-20 Gebrüder Klöcker GmbH Clamping device for releasably connecting a harness cord with a lifting arm of a leno binding device

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DE1814269U (en) * 1960-04-26 1960-06-30 Kugelfischer G Schaefer & Co ONE-PIECE SOLID CAGE FOR BALL BEARINGS.
DE1814269C3 (en) 1968-12-12 1973-11-08 Fa. Gebr. Schmeing, 4283 Weseke Device for producing a cutting stick
CS157896B1 (en) * 1971-09-10 1974-10-15
US3741256A (en) * 1971-12-28 1973-06-26 B Wesseler Device for the production of intermediate selvages in fabric webs
DE4405776C1 (en) * 1994-02-23 1995-08-17 Dornier Gmbh Lindauer Rotary edger of a weaving machine
JP3620153B2 (en) * 1996-07-01 2005-02-16 株式会社豊田自動織機 Tangle ear forming device in loom
JP3620161B2 (en) * 1996-08-29 2005-02-16 株式会社豊田自動織機 Tangle ear forming device in loom
DE19654962A1 (en) * 1996-12-12 1998-06-18 Dornier Gmbh Lindauer Holding and positioning device for a leno selvedge device in weaving machines
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DE19733261C2 (en) * 1997-08-01 2001-07-19 Dornier Gmbh Lindauer Rotary edge turner with direct electromagnetic drive for weaving machines
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DE59905063D1 (en) * 1998-12-09 2003-05-22 Sultex Ag Rueti Device for the controlled movement of a warp thread
EP1016743B1 (en) * 1998-12-09 2003-04-16 Sultex AG Device for the controlled displacement of a weft thread
DE10257519B3 (en) * 2002-12-10 2004-04-01 Klöcker-Entwicklungs-Gmbh Turned edge weaving unit, includes magnets near upper ends of reeds, with polarity arranged to cause mutual attraction
BE1015461A6 (en) * 2003-03-18 2005-04-05 Picanol Nv DEVICE FOR FORMING A selvedge TO A TISSUE.
DE502007005226D1 (en) * 2007-11-21 2010-11-11 Groz Beckert Kg Device for producing leno fabrics
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CN201835060U (en) * 2010-10-18 2011-05-18 山东日发纺织机械有限公司 Linear edge twister

Also Published As

Publication number Publication date
US20130160890A1 (en) 2013-06-27
EP2540885A3 (en) 2013-03-27
JP5532495B2 (en) 2014-06-25
JP2013014873A (en) 2013-01-24
CN102851823B (en) 2014-02-26
CN102851823A (en) 2013-01-02
US8590578B2 (en) 2013-11-26
DE202011103312U1 (en) 2011-11-08
EP2540885A2 (en) 2013-01-02

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