EP2540885B1 - Device for forming a leno selvedge - Google Patents
Device for forming a leno selvedge Download PDFInfo
- 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
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- needles
- pair
- head
- frame
- afore
- Prior art date
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- 239000000463 material Substances 0.000 claims abstract description 3
- 230000010287 polarization Effects 0.000 claims description 6
- 238000009941 weaving Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 239000012811 non-conductive material Substances 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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Classifications
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C7/00—Leno or similar shedding mechanisms
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C7/00—Leno or similar shedding mechanisms
- D03C7/06—Mechanisms 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
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
Aus der
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.
- 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 (
Im Folgenden soll nun zunächst der Schwenkantrieb 20 beschrieben werden. Hierzu wird Bezug genommen zunächst auf die
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
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
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
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
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
- 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)
- 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). - The device according to claim 1,
characterized in that
the swivel drive is symmetrically configured and is symmetrically disposed on the frame. - 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. - 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). - 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). - The device according to claim 5,
characterized in that
the support head (21 a) is made of a magnetizable material. - 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). - 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). - 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. - 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. - 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) - 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). - 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). - 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). - 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.
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 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2540885A2 EP2540885A2 (en) | 2013-01-02 |
EP2540885A3 EP2540885A3 (en) | 2013-03-27 |
EP2540885B1 true EP2540885B1 (en) | 2013-12-04 |
Family
ID=45116240
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12003912.8A Active EP2540885B1 (en) | 2011-06-30 | 2012-05-18 | Device for forming a leno selvedge |
Country Status (5)
Country | Link |
---|---|
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)
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 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
DE29703896U1 (en) * | 1997-03-04 | 1998-07-02 | Klöcker-Entwicklungs-GmbH, 46325 Borken | Lifting wire |
DE19733261C2 (en) * | 1997-08-01 | 2001-07-19 | Dornier Gmbh Lindauer | Rotary edge turner with direct electromagnetic drive for weaving machines |
DE19733262A1 (en) * | 1997-08-01 | 1999-02-04 | Dornier Gmbh Lindauer | Rotary edge turner with direct electromagnetic drive for weaving machines |
DE19813082C1 (en) * | 1998-03-25 | 1999-06-17 | Kloecker Entwicklungs Gmbh | Rotary edge formation device with electric motor comprising rotor and stator |
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 |
CN201704484U (en) * | 2010-06-07 | 2011-01-12 | 义乌市正兴纺织器材有限公司 | Edge twisting device and edge twisting heald |
CN201835060U (en) * | 2010-10-18 | 2011-05-18 | 山东日发纺织机械有限公司 | Linear edge twister |
-
2011
- 2011-06-30 DE DE202011103312U patent/DE202011103312U1/en not_active Expired - Lifetime
-
2012
- 2012-05-18 EP EP12003912.8A patent/EP2540885B1/en active Active
- 2012-06-18 JP JP2012136707A patent/JP5532495B2/en active Active
- 2012-06-26 CN CN201210214786.8A patent/CN102851823B/en active Active
- 2012-06-27 US US13/534,438 patent/US8590578B2/en active Active
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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