EP0152956B1 - Leno device for weaving looms, and weaving loom equipped with such a device - Google Patents

Leno device for weaving looms, and weaving loom equipped with such a device Download PDF

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Publication number
EP0152956B1
EP0152956B1 EP85101896A EP85101896A EP0152956B1 EP 0152956 B1 EP0152956 B1 EP 0152956B1 EP 85101896 A EP85101896 A EP 85101896A EP 85101896 A EP85101896 A EP 85101896A EP 0152956 B1 EP0152956 B1 EP 0152956B1
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EP
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Prior art keywords
crossing
holder
threads
crossing device
adjustable
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EP85101896A
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German (de)
French (fr)
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EP0152956A2 (en
EP0152956A3 (en
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Johnny Debaes
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    • 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

  • Twisting devices are used in fabrics to position part of the warp threads, the so-called leno threads, once on the right and once on the left of the standing threads.
  • the consequence of this is that the leno threads are twisted or wound around the standing threads, as a result of which corrugated edges are obtained.
  • the devices for performing this operation are quite complex and various attempts have been made to simplify them.
  • a leno device of the type mentioned in which on the one hand the standing threads are positioned by the needles and on the other hand the leno threads by combined movement of the positioning eye holder provided with the positioning eyes and that provided with the oblique slots Rotary thread-guiding slot holders can be positioned.
  • This lathe device requires three shedding elements with the associated heald frame, namely a heald frame with the movement 1/1 for the needle holder (standing thread grid), a heald frame with the movement 1/1 for the slit holder and a heald frame with the movement 2/2 for the positioning eye holder .
  • three drive elements of the existing shed device are required, such as a dobby or cam machine.
  • an independent, angularly synchronous adjustment is not possible on the left and right separately with respect to the main shaft.
  • this known lathe device is relatively complex and u. U. prone to failure; so the correct function depends u. a. depends on whether a brake spring preventing free sliding of the slot holder along the guide is intact. An independent movement adjustment of the two slot holders is also excluded.
  • This lathe device also requires heald frames, which are then no longer available for the fabric pattern formation. From a further solution (DE-A-2 329 688), it is known to arrange the forks guiding the leno threads on a heald frame so as to be pivotable transversely to the direction of movement of the frame and to derive the pivoting movement from a rod which is arranged parallel to the reed plane and reciprocally moved in the horizontal direction .
  • the object of the invention is to provide a lathe device of the type mentioned at the outset, in which the drive is independent of the dobby, which does not require any additional heald frame, and in which the angularly synchronous adjustment - left and right independently of one another - is possible with respect to the main shaft .
  • each holder is attached to a linkage pivotally attached to the main frame, all heald frames are available for the actual fabric formation. Due to the linkage of the linkage, the needle eyes, the slits and the positioning eyes describe a corresponding arc when they move in the vertical direction, but this does not impair the function. Since the rods are arranged side by side with common frame-fixed swivel joints, there is an extremely simple modular structure, with the preferred possibility of quickly and easily adapting the lathe device to the respective width of the fabric web to be woven by appropriate adjustment of the common swivel joints.
  • the linkage is driven by rotating cams, which can be independent of the existing shed drive. By appropriate coupling of the rotating cams to the main shaft, an exact synchronization of the pivoting movement of the linkage can easily be set, both individually for the individual holder and individually for a turning device on the left or right edge of the fabric.
  • the warp threads are divided into standing threads 1 and 2 and into leno threads 3, 4, 5, 6.
  • the lathe device consists of various parallelograms formed by rods.
  • the bar parallelogram of the standing threads 1 and 2 carries at both ends of a vertical front bar 7 a needle holder 8 and a needle holder 9, wherein upper needles 10 and lower needles 11 are vertically adjustable.
  • the needle holders 8 and 9 are provided with a positioning device 12 and 13, through which the corresponding standing threads 1 and 2 are guided, in order to then be guided along the needles 10 and 11 and the needle tubes 14 and 15 to the weaving reed (not shown) of the weaving machine will.
  • the vertical front bar 7 of the parallelogram assigned to the standing threads is provided with joints 16 and 17 and their axes 18 and 19.
  • the rods 20 and 21 of the corresponding parallelogram can rotate back and forth about these axes 18 and 19.
  • the rear vertical side is formed by a rod 22 having an upper axis 23 and a lower axis 24 about which the corresponding upper associated rod 20 and the corresponding lower adjacent rod 21 can rotate back and forth. This has the consequence that the front side bar 7 can move the standing threads up and down, whereby the needles can be held in a vertical position.
  • the leno threads 3, 4 and 5, 6 are guided through corresponding positioning eyes 25 and 26.
  • Holders 27 and 28 of the positioning eyes 25 and 26 are fastened to the vertical rod 29, which is at the same time the vertical front side of the parallelogram associated with the positioning eyes 25 and 26.
  • This front side has two joints 30 and 31 for the rods 32 and 33, which can also rotate back and forth about the axes 23 and 24, while the rod 22 represents the rear of the parallelogram assigned to the positioning eyes 25, 26.
  • the leno threads 3, 4 and 5, 6 also go through assigned slots 34 and 35, the holders 36 and 37 of which are attached to the outer ends of the vertical rod 38.
  • This rod 38 is the front of the parallelogram associated with the slot holders 36 and 37, which further consists of the rods 38 and 39 and the vertical rod 22 serving as the rear.
  • the parallelogram linkages are arranged modularly next to each other on hinges connected to the frame and the width can be adjusted to the fabric width to be woven.
  • the position of the needles, slots and eyes can be adjusted with the aid of set screws 50 on vertical pull rods 42.
  • the lower parallelogram rods 21, 33 and 38 each have an extension piece 40, which carries a joint 41 at its end and is connected by a pull rod 42 and a push lever 43 to a pressure wheel 44, so that by cam plates 45 upon rotation of the cam shaft 46 and the tension springs 47 cause an up and down movement of the vertical front bars, the corresponding needle parallelogram, the slit holder parallelogram and the positioning eye parallelogram.
  • the angularly synchronous setting is achieved by rotating the cam disks 45 on the cam disk shaft 46.
  • This shaft rotates 1/4 in relation to the main shaft so that the needles 10 and 11 move 1/1, the slots 34, 35 move 1/1 in counter-clockwise motion and the thread positioning eyes 25 and 26 move 2 / 2 run.
  • the compartment opening of the leno threads can be adjusted by means of adjusting screws 52 at the lower end of the thrust lever 43.
  • the slot holders 36, 37 for the leno threads and the positioning eye holders 27, 28 can be adjusted in height by means of adjusting screws 54 on the vertical rod 38 or 29 of the parallelogram in question.

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

Description

Die Erfindung betrifft eine Drehereinrichtung für Webmaschinen, insbesondere Doppelgreifer-Webmaschinen für Kanten von Doppelsamt oder Teppichen, umfassend

  • wenigstens einen in vertikaler Richtung bewegbaren Nadelhalter mit vertikalen Nadeln zur Führung von Stehfäden,
  • wenigstens einen in vertikaler Richtung bewegbaren Schlitzhalter mit schrägen Schlitzen zur Führung von Dreherfäden,
  • wenigstens einen in vertikaler Richtung bewegbaren Positionieraugenhalter mit Positionieraugen für die Dreherfäden zur Positionierung der Dreherfäden in den Schlitzen.
The invention relates to a lathe device for weaving machines, in particular double rapier weaving machines for edges of double velvet or carpets, comprising
  • at least one needle holder movable in the vertical direction with vertical needles for guiding standing threads,
  • at least one slot holder movable in the vertical direction with oblique slots for guiding leno threads,
  • at least one positioning eye holder movable in the vertical direction with positioning eyes for the leno threads for positioning the leno threads in the slots.

Drehereinrichtungen werden bei Geweben gebraucht, um einen Teil der Kettfäden, die sog. Dreherfäden, einmal rechts und einmal links von den Stehfäden zu positionieren. Dies hat zur Folge, daß die Dreherfäden um die Stehfäden gedreht oder gewunden werden, wodurch man riffelfeste Kanten erhält. Die Vorrichtungen zur Durchführung dieses Vorgangs sind ziemlich kompliziert, und es wurden schon verschiedene Versuche unternommen, um sie zu vereinfachen.Twisting devices are used in fabrics to position part of the warp threads, the so-called leno threads, once on the right and once on the left of the standing threads. The consequence of this is that the leno threads are twisted or wound around the standing threads, as a result of which corrugated edges are obtained. The devices for performing this operation are quite complex and various attempts have been made to simplify them.

Aus der DE-U1-8 005 822 ist eine Drehereinrichtung der eingangs genannten Art bekannt, bei der einerseits die Stehfäden durch die Nadeln positioniert werden und andererseits die Dreherfäden durch kombinierte Bewegung des mit den Positionieraugen versehenen Positionieraugenhalters und des mit den schrägen Schlitzen versehenen, die Dreherfäden führenden Schlitzhalter positioniert werden. Diese Drehereinrichtung hat drei Fachbildungselemente mit den zugehörigen Webschaftrahmen nötig, nämlich einen Webschaftrahmen mit der Bewegung 1/1 für den Nadelhalter (Stehfadenrost), einen Webschaftrahmen mit der Bewegung 1/1 für den Schlitzhalter und einen Webschaftrahmen mit der Bewegung 2/2 für den Positionieraugenhalter. Zum Antrieb dieser Dreheinrichtung werden drei Antriebselemente der bestehenden Webfachvorrichtung benötigt, wie Schaftmaschine oder Nockenscheibenmaschine. Darüber hinaus ist eine unabhängige winkelsynchrone Einstellung - links und recht separat in Bezug auf die Hauptwelle nicht möglich.From DE-U1-8 005 822 a leno device of the type mentioned is known, in which on the one hand the standing threads are positioned by the needles and on the other hand the leno threads by combined movement of the positioning eye holder provided with the positioning eyes and that provided with the oblique slots Rotary thread-guiding slot holders can be positioned. This lathe device requires three shedding elements with the associated heald frame, namely a heald frame with the movement 1/1 for the needle holder (standing thread grid), a heald frame with the movement 1/1 for the slit holder and a heald frame with the movement 2/2 for the positioning eye holder . To drive this rotating device, three drive elements of the existing shed device are required, such as a dobby or cam machine. In addition, an independent, angularly synchronous adjustment is not possible on the left and right separately with respect to the main shaft.

Aus der DE-A1-3 134 006 ist es bekannt, an einem ersten Webschaftrahmen sowohl die Nadelhalter mit den vertikalen Nadeln zu befestigen als auch den Schlitzhalter an einer Führung beweglich zu lagern. An einem zweiten Webschaftrahmen ist ein zweiter Schlitzhalter mit gegenüber dem ersten Schlitzhalter um 90° gedrehten schrägen Schlitzen befestigt, welcher mit vorgegebenem Bewegungsspiel an den ersten Schlitzhalter angreift, so daß sich während der gegenläufigen Bewegung der beiden Webschaftrahmen zum einen eine Relativbewegung der beiden Schlitzhalter gegeneinander ergibt mit entsprechender unterschiedlicher Positionierung der Dreherfäden in den Schlitzen. Zum anderen erhält man die gewünschte Verschiebung der-Schlitzhalter relativ zu den vertikalen Nadeln. Der Aufbau dieser bekannten Drehereinrichtung ist relativ aufwendig und u. U. störanfällig ; so hängt die einwandfreie Funktion u. a. davon ab, ob eine das freie Gleiten des betreffenden Schlitzhalters längs der Führung verhindernde Bremsfeder intakt ist. Auch ist eine voneinander unabhängige Bewegungseinstellung der beiden Schlitzhalter ausgeschlossen. Auch diese Drehereinrichtung benötigt Webschaftrahmen, die dann für die Gewebemusterbildung nicht mehr zur Verfügung stehen. Aus einer weiteren Lösung (DE-A-2 329 688) ist es bekannt, an einem Webschaftrahmen die Dreherfäden führende Gabeln quer zur Bewegungsrichtung des Rahmens schwenkbar anzuordnen und die Schwenkbewegung von einer parallel zur Webblattebene angeordneten, in horizontaler Richtung hin und her bewegten Stange abzuleiten. Zur Herstellung von Dreher-Gewebe (Gaze) ist es schließlich bekannt (CH-A-239 734), sowohl den Dreherfaden, als auch den Stehfaden in Schlitzen eines gemeinsamen, drehbar gelagerten Schlitzhalters zu führen und sowohl die Stehfäden als auch die Dreherfäden durch Positionieraugen zu positionieren, die an unterschiedlichen Stellen am Maschinenrahmen schwenkbar gelagert sind. Entsprechend der Breite der Gaze wird eine Vielzahl der beschriebenen Einrichtungen nebeneinander angeordnet. Das bei herkömmlichen Webmaschinen mit Drehereinrichtung für Kanten von Doppelsamt oder Teppichen auftretende Problem der Einsparung von Webschaftrahmen sowie entsprechender Antriebselemente tritt hier nicht auf.From DE-A1-3 134 006 it is known both to fasten the needle holder with the vertical needles to a first heald frame and to movably mount the slot holder on a guide. On a second heald frame, a second slit holder with oblique slits rotated by 90 ° with respect to the first slit holder is fastened, which acts on the first slit holder with a predetermined range of motion, so that during the opposite movement of the two heald frames there is a relative movement of the two slit holders against one another with corresponding different positioning of the leno threads in the slots. On the other hand, the desired displacement of the slot holder relative to the vertical needles is obtained. The construction of this known lathe device is relatively complex and u. U. prone to failure; so the correct function depends u. a. depends on whether a brake spring preventing free sliding of the slot holder along the guide is intact. An independent movement adjustment of the two slot holders is also excluded. This lathe device also requires heald frames, which are then no longer available for the fabric pattern formation. From a further solution (DE-A-2 329 688), it is known to arrange the forks guiding the leno threads on a heald frame so as to be pivotable transversely to the direction of movement of the frame and to derive the pivoting movement from a rod which is arranged parallel to the reed plane and reciprocally moved in the horizontal direction . Finally, for the production of leno fabric (gauze), it is known (CH-A-239 734) to guide both the leno thread and the standing thread in the slots of a common, rotatably mounted slot holder and both the standing thread and the leno thread by means of positioning eyes to position, which are pivotally mounted at different points on the machine frame. A large number of the devices described are arranged next to one another in accordance with the width of the gauze. The problem of saving loom frames and corresponding drive elements that occurs in conventional weaving machines with a turning device for edges of double velvet or carpets does not occur here.

Die Aufgabe der Erfindung ist es, eine Drehereinrichtung der eingangs genannten Art bereitzustellen, bei der der Antrieb unabhängig von der Schaftmaschine ist, die keine zusätzlichen Webschaftrahmen benötigt und bei der die winkelsynchrone Einstellung - links und rechts unabhängig voneinander- in Bezug auf die Hauptwelle möglich ist.The object of the invention is to provide a lathe device of the type mentioned at the outset, in which the drive is independent of the dobby, which does not require any additional heald frame, and in which the angularly synchronous adjustment - left and right independently of one another - is possible with respect to the main shaft .

Diese Aufgabe wird dadurch gelöst,

  • daß jeder Halter jeweils an einem am Hauptrahmen schwenkbar befestigten Gestänge angebracht ist,
  • daß die Gestänge nebeneinander angeordnet sind mit gemeinsamen rahmenfesten Drehgelenken,
  • und daß die Schwenkbewegung der Gestänge jeweils von einer rotierenden Kurvenscheibe abgeleitet sind.
This task is solved by
  • that each holder is attached to a linkage pivotally attached to the main frame,
  • that the rods are arranged side by side with common frame-fixed swivel joints,
  • and that the pivoting movement of the linkages are each derived from a rotating cam.

Da jeder Halter jeweils an einem am Hauptrahmen schwenkbar befestigten Gestänge angebracht ist, stehen sämtliche Webschaftrahmen zur eigentlichen Gewebebildung zur Verfügung. Aufgrund der Anlenkung des Gestänges beschreiben die Nadelaugen, die Schlitze sowie die Positionieraugen bei ihrer Bewegung in vertikaler Richtung einen dementsprechenden Bogen, was die Funktion jedoch nicht beeinträchtigt. Da die Gestänge nebeneinander angeordnet sind mit gemeinsamen rahmenfesten Drehgelenken, ergibt sich äußerst einfacher modularer Aufbau, mit der bevorzugten Möglichkeit einer schnellen und einfachen Anpassung der Drehereinrichtung auf die jeweilige Breite der zu webenden Gewebebahn durch entsprechende Verstellung de gemeinsamen Drehgelenke. Der Antrieb der Gestänge erfolgt über rotierende Kurvenscheiben, die unabhängig sein können vom bestehenden Webfach-Antrieb. Durch entsprechende Kopplung der rotierenden Kurvenscheiben mit der Hauptwelle ist eine exakte Synchronisation der Schwenkbewegung der Gestänge ohne weiteres einstellbar, und zwar sowohl individuell für die einzelnen Halter, als auch individuell für eine Drehereinrichtung am linken bzw. am rechten Rand des Gewebes.Since each holder is attached to a linkage pivotally attached to the main frame, all heald frames are available for the actual fabric formation. Due to the linkage of the linkage, the needle eyes, the slits and the positioning eyes describe a corresponding arc when they move in the vertical direction, but this does not impair the function. Since the rods are arranged side by side with common frame-fixed swivel joints, there is an extremely simple modular structure, with the preferred possibility of quickly and easily adapting the lathe device to the respective width of the fabric web to be woven by appropriate adjustment of the common swivel joints. The linkage is driven by rotating cams, which can be independent of the existing shed drive. By appropriate coupling of the rotating cams to the main shaft, an exact synchronization of the pivoting movement of the linkage can easily be set, both individually for the individual holder and individually for a turning device on the left or right edge of the fabric.

Weitere Merkmale und Vorteile der Erfindung ergeben sich aus der nachfolgenden Beschreibung einer erfindungsgemäß ausgebildeten Drehereinrichtung für eine Webmaschine an Hand der Zeichnung. Diese zeigt eine perspektivische Ansicht einer solchen Drehereinrichtung.Further features and advantages of the invention result from the following description of a lathe device designed according to the invention for a weaving machine with reference to the drawing. This shows a perspective view of such a turning device.

Bei einer Drehereinrichtung einer Webmaschine, so wie in der Figur dargestellt, werden die Kettfäden in Stehfäden 1 und 2 und in Dreherfäden 3, 4, 5, 6 aufgeteilt.In a leno device of a weaving machine, as shown in the figure, the warp threads are divided into standing threads 1 and 2 and into leno threads 3, 4, 5, 6.

Die Drehereinrichtung besteht aus verschiedenen, von Stangen gebildeten Parallelogrammen. Das Stangenparallelogramm der Stehfäden 1 und 2 trägt an beiden Enden einer vertikalen Vorderseitenstange 7 jeweils einen Nadelhalter 8 und einen Nadelhalter 9, worin jeweils obere Nadeln 10 und untere Nadeln 11 vertikal einstellbar sind. Die Nadelhalter 8 und 9 sind mit einer Positioniervorrichtung 12 und 13 versehen, durch die die entsprechenden Stehfäden 1 und 2 geführt werden, um dann längs der Nadeln 10 und 11 und den Nadelöhren 14 und 15 weiter zum Webblatt (nicht dargestellt) der Webmaschine geleitet zu werden. Die senkrechte Vorderseitenstange 7 des den Stehfäden zugeordneten Paralellogramms ist mit Gelenken 16 und 17 sowie deren Achsen 18 und 19 versehen. Um diese Achsen 18 und 19 können sich die Stangen 20 und 21 des entsprechenden Parallelogramms hin- und herdrehen. Die hintere vertikale Seite wird durch eine Stange 22 mit einer oberen Achse 23 und einer unteren Achse 24 gebildet, um die sich die entsprechende obere zugehörige Stange 20 und die entsprechende untere anliegende Stange 21 hin- und herdrehen können. Dies hat zur Folge, daß die Vorderseitenstange 7 die Stehfäden auf und nieder bewegen kann, wobei die Nadeln in einer vertikalen Lage gehalten werden können.The lathe device consists of various parallelograms formed by rods. The bar parallelogram of the standing threads 1 and 2 carries at both ends of a vertical front bar 7 a needle holder 8 and a needle holder 9, wherein upper needles 10 and lower needles 11 are vertically adjustable. The needle holders 8 and 9 are provided with a positioning device 12 and 13, through which the corresponding standing threads 1 and 2 are guided, in order to then be guided along the needles 10 and 11 and the needle tubes 14 and 15 to the weaving reed (not shown) of the weaving machine will. The vertical front bar 7 of the parallelogram assigned to the standing threads is provided with joints 16 and 17 and their axes 18 and 19. The rods 20 and 21 of the corresponding parallelogram can rotate back and forth about these axes 18 and 19. The rear vertical side is formed by a rod 22 having an upper axis 23 and a lower axis 24 about which the corresponding upper associated rod 20 and the corresponding lower adjacent rod 21 can rotate back and forth. This has the consequence that the front side bar 7 can move the standing threads up and down, whereby the needles can be held in a vertical position.

In gleicher Art und Weise werden die Dreherfäden 3, 4 und 5, 6 durch entsprechende Positionieraugen 25 und 26 geführt. Halter 27 und 28 der Positionieraugen 25 und 26 sind an der vertikalen Stange 29 befestigt, die gleichzeitig die vertikale Vorderseite des den Positionieraugen 25 und 26 zugeordneten Parallelogramms ist. Diese Vorderseite hat zwei Gelenke 30 und 31 für die Stangen 32 und 33, die sich auch um die Achsen 23 und 24 hin- und herdrehen können, während die Stange 22 die Rückseite des den Positionieraugen 25, 26 zugeordneten Parallelogramms darstellt.In the same way, the leno threads 3, 4 and 5, 6 are guided through corresponding positioning eyes 25 and 26. Holders 27 and 28 of the positioning eyes 25 and 26 are fastened to the vertical rod 29, which is at the same time the vertical front side of the parallelogram associated with the positioning eyes 25 and 26. This front side has two joints 30 and 31 for the rods 32 and 33, which can also rotate back and forth about the axes 23 and 24, while the rod 22 represents the rear of the parallelogram assigned to the positioning eyes 25, 26.

Genauso gehen weiterhin die Dreherfäden 3, 4 und 5, 6 durch zugeordnete Schlitze 34 und 35 deren Halter 36 und 37 an den äußeren Enden der vertikalen Stange 38 befestigt sind. Diese Stange 38 ist die Vorderseite des den Schlitzhaltern 36 und 37 zugeordneten Parallelogramms, das weiterhin aus den Stangen 38 und 39 und der als Rückseite dienenden vertikalen Stange 22 besteht.Likewise, the leno threads 3, 4 and 5, 6 also go through assigned slots 34 and 35, the holders 36 and 37 of which are attached to the outer ends of the vertical rod 38. This rod 38 is the front of the parallelogram associated with the slot holders 36 and 37, which further consists of the rods 38 and 39 and the vertical rod 22 serving as the rear.

Die Parallelogrammgestänge sind modular nebeneinander auf rahmenfest verbundenen Gelenken angeordnet und sind in der Breite auf die zu webende Gewebebreite einstellbar. Die Lage der Nadeln, Schlitze und Augen kann mit Hilfe von Stellschrauben 50 an vertikalen Zugstangen 42 eingestellt werden.The parallelogram linkages are arranged modularly next to each other on hinges connected to the frame and the width can be adjusted to the fabric width to be woven. The position of the needles, slots and eyes can be adjusted with the aid of set screws 50 on vertical pull rods 42.

Die unteren Parallelogrammstangen 21, 33 und 38 haben jede ein Verlängerungsstück 40, das an seinem Ende ein Gelenk 41 trägt und durch eine Zugstange 42 und einen Schubhebel 43 jeweils mit einem Druckrad 44 verbunden ist, so daß durch Kurvenscheiben 45 bei Drehung der Kurvenscheibenwelle 46 und durch die Zugfedern 47 eine auf- und niedergehende Bewegung der vertikalen Vorderseitenstangen, des entsprechenden Nadelparallelogramms, des Schlitzhalterparallelogramms und des Positionieraugenparallelogramms verursacht wird.The lower parallelogram rods 21, 33 and 38 each have an extension piece 40, which carries a joint 41 at its end and is connected by a pull rod 42 and a push lever 43 to a pressure wheel 44, so that by cam plates 45 upon rotation of the cam shaft 46 and the tension springs 47 cause an up and down movement of the vertical front bars, the corresponding needle parallelogram, the slit holder parallelogram and the positioning eye parallelogram.

Die winkelsynchrone Einstellung wird durch Drehen der Kurvenscheiben 45 auf der Kurvenscheibenwelle 46 erreicht. Diese Welle dreht in Bezug auf die Hauptwelle im Verhältnis 1/4, so daß die Nadeln 10 und 11 eine Bewegung von 1/1, die Schlitze 34, 35 von 1/1 im Gegentakt und die Fadenpositionieraugen 25 und 26 eine Bewegung von 2/2 ausführen.The angularly synchronous setting is achieved by rotating the cam disks 45 on the cam disk shaft 46. This shaft rotates 1/4 in relation to the main shaft so that the needles 10 and 11 move 1/1, the slots 34, 35 move 1/1 in counter-clockwise motion and the thread positioning eyes 25 and 26 move 2 / 2 run.

Die Fachöffnung der Dreherfäden ist durch Stellschrauben 52 am unteren Ende der Schubhebei 43 einstellbar. Die Schlitzhalter 36, 37 für die Dreherfäden sowie die Positionieraugenhalter 27, 28 sind durch Stellschrauben 54 an der vertikalen Stange 38 bzw. 29 des betreffenden Parallelogramms höheneinstellbar.The compartment opening of the leno threads can be adjusted by means of adjusting screws 52 at the lower end of the thrust lever 43. The slot holders 36, 37 for the leno threads and the positioning eye holders 27, 28 can be adjusted in height by means of adjusting screws 54 on the vertical rod 38 or 29 of the parallelogram in question.

Claims (9)

1. Crossing device for looms, especially double-shuttle-holder looms for selvages of double velvet or carpets, comprising :
at least one needle holder (8, 9) movable in a vertical direction, with vertical needles (10, 11), for the guidance of stationary threads (1, 2),
at least one slot holder (36, 37) movable in a vertical direction with oblique slots (34, 35) for the guidance of crossing threads (3, 4, 5, 6),
at least one positioning eye holder (27, 28) movable in a vertical direction with positioning eyes (25, 26) for the crossing threads (3, 4, 5, 6) for the positioning of the crossing threads (3, 4, 5, 6) in the slots (34, 35),
characterised in that
each holder (8, 9, 27, 28, 36, 37) is fitted on a linkage pivotably secured to the main frame (22),
the linkages are arranged side by side with common pivot joints (23, 24) fast with the frame,
and the pivoting movements of the linkages are each derived from a rotating cam disc 45.
2. Crossing device according to Claim 1, characterised in that the pivot joints (23. 24) are adjustable in the direction of the width of the fabric web to be woven.
3. Crossing device according to Claim 1 or 2, characterised in that the cam disc (45) in each case is explorable by a pressure wheel mounted on a push lever, and in that the push lever (43) is connected with the linkage in each case through a draw rod (42).
4. Crossing device according to Claim 3, characterised in that the holders (8, 9, 27, 28, 36, 37) are adjustable in height on the draw rod (42) by adjusting screws (50).
5. Crossing device according to Claim 3, characterised in that the shed opening of the crossing threads is adjustable by displacement of the push levers (43) provided with adjusting screws (52).
6. Crossing device according to Claim 2, characterised in that the linkages are formed by parallelogram linkages.
7. Crossing device according to Claim 6, characterised in that the slot holders (36, 37) and the positioning eye holders (26, 27) are adjustable in their height by adjusting screws (54) on the vertical rod (7) of the relevant parallelogram.
8. Loom having a crossing device according to one of the preceding Claims.
9. Loom according to Claim 8, characterised in that the two crossing devices arranged to left and right respectively are adjustable in relation to the main shaft of the loom independently of one another in angular synchronism by cam discs on a cam disc shaft.
EP85101896A 1984-02-21 1985-02-21 Leno device for weaving looms, and weaving loom equipped with such a device Expired EP0152956B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE1/10965A BE898963A (en) 1984-02-21 1984-02-21 TWISTER FOR WEAVING MACHINES AND WEAVING MACHINES EQUIPPED WITH SUCH TWISTER
BE1010965 1984-02-21

Publications (3)

Publication Number Publication Date
EP0152956A2 EP0152956A2 (en) 1985-08-28
EP0152956A3 EP0152956A3 (en) 1986-02-19
EP0152956B1 true EP0152956B1 (en) 1988-01-20

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ID=3862967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85101896A Expired EP0152956B1 (en) 1984-02-21 1985-02-21 Leno device for weaving looms, and weaving loom equipped with such a device

Country Status (4)

Country Link
US (1) US4614210A (en)
EP (1) EP0152956B1 (en)
BE (1) BE898963A (en)
DE (1) DE3561476D1 (en)

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DE4102585A1 (en) * 1990-04-04 1991-10-10 Wiele Michel Van De Nv METHOD AND TURNING DEVICE FOR PRODUCING RIFLE-RESISTANT EDGES OF A DOUBLE FABRIC ON A DOUBLE-RIPPER WEAVING MACHINE

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FR2648830B1 (en) * 1989-06-23 1992-01-24 Schoutteten Froidure Sa METHOD FOR MANUFACTURING A PADDED TUBULAR STRAP, WEAVING MATERIAL FOR CARRYING OUT SAID METHOD, CHAIN THREAD CONTROL DEVICE DESIGNED FOR SAID WEAVING STRUCTURE, AND TUBULAR STRAP THUS OBTAINED
IT1238228B (en) * 1989-12-01 1993-07-12 Roberto Spanevello DEVICE FOR AN EFFECTIVE ENGLISH BINDING OF THE SIDE EDGE OF A FABRIC IN A TEXTILE FRAME
BE1004954A3 (en) * 1991-06-18 1993-03-02 Picanol Nv Device for driving a mechanism in WIRES RAND weaving machines.
IT1255133B (en) * 1992-05-05 1995-10-20 Luciano Corain IMPROVEMENT IN A TEXTILE FRAME WITHOUT SHUTTLE
BE1009375A6 (en) * 1995-05-29 1997-02-04 Picanol Nv Edge device for looms.
CZ283439B6 (en) * 1996-08-16 1998-04-15 Vúts Liberec A.S. Apparatus for controlling warp threads for producing gauzes on a weaving machine
DE10003919B4 (en) * 2000-01-29 2004-04-08 Lindauer Dornier Gmbh Weaving machine for producing a leno fabric
US6510871B2 (en) * 2001-03-05 2003-01-28 Sulzer Textil Ag Apparatus for the manufacture of leno fabrics
BE1014130A3 (en) * 2001-04-20 2003-05-06 Wiele Michel Van De Nv Weaving DOUBLE PIECE GAAP FORMATION WITH TWISTER TWISTER DEVICE AND DEVICE FOR PIECE WITH DOUBLE weaving GAAP FORMATION.
DE10334359B3 (en) * 2003-02-21 2005-02-03 Lindauer Dornier Gmbh Weaving machine for producing a fabric in linen and leno weave
DE502005008394D1 (en) * 2004-12-31 2009-12-03 Dornier Gmbh Lindauer THREAD FABRIC AND METHOD AND WEIGHING MACHINE FOR THE PRODUCTION THEREOF
US20070048491A1 (en) * 2005-08-23 2007-03-01 Couristan Inc. Water resistant carpet and method of manufacture the same
TWI650456B (en) 2016-01-28 2019-02-11 耐克創新有限合夥公司 Multi-bow partitioning weaving system, method and material
JP2022173636A (en) * 2021-05-10 2022-11-22 津田駒工業株式会社 Selvage shedding device of loom

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US3256913A (en) * 1963-09-23 1966-06-21 Dewas Raymond Crossing formation on fabrics
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DE2329688A1 (en) * 1973-06-09 1974-12-19 Gaschuetz & Fischer Webstuhl TURNING DEVICE FOR A CONTACTORLESS DOUBLE FABRIC WEAVING MACHINE
DE8005822U1 (en) * 1980-03-04 1980-07-10 Grefrath Velour Ag, 4155 Grefrath TURNING DEVICE FOR GRIPPER WEAVING MACHINES
IT1132580B (en) * 1980-08-29 1986-07-02 Nuovo Pignone Spa PERFECTED DEVICE FOR THE DOUBLE-ROUND ENGLISH CROSS BINDING OF THE SIDE EDGES OF A FABRIC IN A TEXTILE FRAME

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Publication number Priority date Publication date Assignee Title
DE4102585A1 (en) * 1990-04-04 1991-10-10 Wiele Michel Van De Nv METHOD AND TURNING DEVICE FOR PRODUCING RIFLE-RESISTANT EDGES OF A DOUBLE FABRIC ON A DOUBLE-RIPPER WEAVING MACHINE

Also Published As

Publication number Publication date
DE3561476D1 (en) 1988-02-25
US4614210A (en) 1986-09-30
EP0152956A2 (en) 1985-08-28
BE898963A (en) 1984-06-18
EP0152956A3 (en) 1986-02-19

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