EP0826079B1 - Device for forming a fabric edge - Google Patents

Device for forming a fabric edge Download PDF

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Publication number
EP0826079B1
EP0826079B1 EP96908129A EP96908129A EP0826079B1 EP 0826079 B1 EP0826079 B1 EP 0826079B1 EP 96908129 A EP96908129 A EP 96908129A EP 96908129 A EP96908129 A EP 96908129A EP 0826079 B1 EP0826079 B1 EP 0826079B1
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EP
European Patent Office
Prior art keywords
thread
needles
previous
stationary thread
leno
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP96908129A
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German (de)
French (fr)
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EP0826079A1 (en
Inventor
Werner Wanning
Karl-Heinz Seifer
Christoph Schwemmlein
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Kloecker Entwicklungs GmbH
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Kloecker Entwicklungs GmbH
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Priority claimed from DE19520500A external-priority patent/DE19520500C1/en
Application filed by Kloecker Entwicklungs GmbH filed Critical Kloecker Entwicklungs GmbH
Publication of EP0826079A1 publication Critical patent/EP0826079A1/en
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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03CSHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C7/00Leno or similar shedding mechanisms

Definitions

  • the invention relates to a device for forming a Fabric edge with two leno threads and one stand thread, whereby for the leno threads and the upright thread are provided, the leno threads crossing the Stay thread with each other after every second weft entry are twisted, the thread guide elements for the Leno threads and the thread guide element for the upright thread to form a compartment between the leno threads on the one hand and the upright thread, on the other hand, relative to one another are held pivotable.
  • DE-GM 85 05 367 is a device for forming a Leno edge known, two leno threads and one Upright thread are provided.
  • the guidance of the leno threads takes place here crosswise one above the other in a backdrop arranged inclined slots for guiding the leno threads and a so-called standing thread needle for receiving the Standing thread.
  • the disadvantage of this device is that here the threads are redirected.
  • From DE-OS 31 08 662 is also a device for Form a fabric edge known; here is a rotatable Provided backdrop that receives the two leno threads. There is a needle above the rotating backdrop Guiding the upright thread.
  • the disadvantage here is that at least the upright thread is sharply deflected at least twice becomes.
  • a similar construction shows the De 40 38 256; but also here at least the upright thread is turned twice sharply, which is why when using appropriate threads There is a risk of thread breaks.
  • US-PS 48 69 297 is a device of the beginning known type known.
  • This device has one vertical needle, which has an end eyelet for guidance of the upright thread.
  • there are two Leno threads provided by one with two eyelets provided block are guided. The distance between the two eyelets is such that the needle passes between the two can immerse the block of guided leno threads.
  • this block is rotatable is trained.
  • a disadvantage of this device is that the upright thread in an end position is sharply deflected twice, namely once when the thread leaves the eyelet and the other time if the upright thread is in the area of the lower end of the needle is redirected by the block. Especially with the Use of low quality yarns or too Glass fiber threads, this inevitably leads to tearing or to break the threads.
  • the invention lies on the basis of this prior art the task of a device of the aforementioned To create the way to form the fabric edge used threads are not deflected such that this too break the threads.
  • Thread guide elements for guiding the leno threads or the Steady thread are designed as needles, the two Needles for the leno threads parallel and at a distance like this mutually extending by a rotatable bracket are recordable that the needle for the upright thread between can insert the needles for the leno threads.
  • the space between the two needles ensures that that the other needle, which picks up the stand thread, between can immerse the two needles, without this neither the Leno threads can still be deflected. This means, that with the device according to the invention also problematic Yarns or glass fiber threads can be processed.
  • the rotatable holder turns the leno threads in one Open compartment position when the bracket rotates with each other twisted, namely when the standing thread needle and the Leno thread needles not in crossed condition are briefly in the following as "open position" of the needles designated.
  • the "closed position" of the needles exists when the turning needles and the standing needle are crossed. D. that is, the twisting of the leno threads only every second Subject change takes place. This is advantageous in that this makes the bond less bulky, d. H. less strong is like a twist with every change of subject would take place and therefore every weft would be tied.
  • the thread guide elements as needles, another advantage is evident, which is that the threads, e.g. B. after a thread break, easily again can be caught by a needle through the sleeve-shaped needle pushed, at the other end the thread inserted and pulled through the sleeve-shaped needle becomes.
  • the device works independently of the shaft.
  • This Drive moves the thread guide elements independently of the Shaft movement of the weaving machine, giving the possibility it is opened that the weft is already tied, before the stems reach their respective end positions (Closed position or open position of the needles) reached to have.
  • weft waste can be reduced.
  • the device on the Heald frames are driven (shaft-dependent drive).
  • the drive includes a swivel arm for receiving the rotatable bracket and a swivel arm for the Thread guiding element of the upright thread.
  • the swivel arms are swiveling by means of connecting rods with a driven one Crankshaft connected.
  • the invention provides an eccentric drive. This points the bracket on an axis extending through the swivel arm is rotatable from the swivel arm, the axis has an eccentric disc at the end, which by a Push rod can be connected to a swivel lever, which by a cam disk can be pivoted.
  • the Leno thread pair 3 consists of the two Leno thread needles 3a and 3b.
  • the leno thread pair 3 will of the rotatable bracket, designated overall by 4 added.
  • the standing thread needle 2 is relative to that Dreherfadennadelpoc 3 arranged such that the Standing thread needle 2 between the leno thread needles 3a, 3b can immerse, as shown in Fig. 1.
  • the total with 13 designated drive includes the two swivel arms 5 u. 6, through the pivot axes 11, 12 in the housing 1a are rotatably mounted.
  • the swivel arms 5 and 6 have each have a bore 5a, 6a for receiving the rotatable Bracket 4 or the standing thread needle 2, with the Bracket 4 or through the hole 6a Leno threads 2 or the standing thread 8 for the respective needles be performed.
  • thread guides 9a, 9b and 10 are provided to guide the leno threads 7a, 7b and Steady thread 8 to the corresponding needles.
  • the swivel arms 5 are driven. 6 through the Connecting rods 14, 15 with the total of 16 designated crankshaft are connected.
  • the Crankshaft 16 has the two eccentrics 16a, 16b which causes the connecting rods arranged thereon 14, 15 moved towards one another or from one another at the same time be moved away.
  • the rotatable bracket designated overall by 4, is also available the total of 17 eccentric drive in Connection.
  • the rotatable bracket 4 has the hollow axis 18 on which is rotatable by the pivot arm 5 in the bore 5a is recorded. At the end, the hollow axis 18 has the Eccentric disc 19.
  • the hollow axis 18 also serves Implementation of the leno thread 7a, 7b.
  • the push rod 20 is provided with the pivot lever 21 is connected.
  • the connection of the Push rod with the eccentric disc on the one hand and the Swing levers on the other hand are each via a Ball joint 20a.
  • the pivot lever 21 through the axis 21a is rotatably supported by the housing 1 a Cam wheel 21b, which with the cam disc 22 with the cam 22a cooperates such that the pivot lever 21 through the Cam 22a of the cam disk 22 when the cam disk rotates is deflected.
  • the cam disk 22 is driven via a belt 23 for driving the belt 23
  • Output 16c arranged on the crankshaft 16 is provided.
  • Gear ratio of 1: 2 That is, the cam discs 22 only one during a full rotation of the output 16c half a turn.
  • the return spring 24 is used for the pivot lever 21.
  • the device designated 1 is from Warp beam 27 seen in front of the heald frames 28, 29 arranged, which carry the strands 33 for the warp threads 34.
  • the device 1 is attached to the loom by the Traverse 30. From the drawing is also recognizable that Advised 31 that to stop the weft thread (not shown) serves.
  • the finished tissue is through the tissue tree 32nd added.

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

Description

Die Erfindung betrifft eine Vorrichtung zur Bildung einer Gewebekante mit zwei Dreherfäden und einem Steherfaden, wobei für die Dreherfäden und den Steherfaden Fadenführungselemente vorgesehen sind, wobei die Dreherfäden unter Kreuzung des Steherfadens miteinander nach jedem zweiten Schußeintrag verdrillbar sind, wobei die Fadenführungselemente für die Dreherfäden und das Fadenführungselement für den Steherfaden zur Bildung eines Faches zwischen den Dreherfäden einerseits und dem Steherfaden andererseits relativ zueinander verschwenkbar gehalten sind.The invention relates to a device for forming a Fabric edge with two leno threads and one stand thread, whereby for the leno threads and the upright thread are provided, the leno threads crossing the Stay thread with each other after every second weft entry are twisted, the thread guide elements for the Leno threads and the thread guide element for the upright thread to form a compartment between the leno threads on the one hand and the upright thread, on the other hand, relative to one another are held pivotable.

Vorrichtungen zur Bildung einer Dreherkante sind in den verschiedensten Ausführungen aus dem Stand der Technik bekannt.Devices for forming a leno edge are in the various designs from the prior art known.

Aus dem DE-GM 85 05 367 ist eine Vorrichtung zum Bilden einer Dreherkante bekannt, wobei zwei Dreherfäden und ein Steherfaden vorgesehen sind. Die Führung der Dreherfäden erfolgt hier durch in einer Kulisse kreuzweise übereinander angeordnete Schrägschlitze zur Führung der Dreherfäden und einer sogenannten Steherfadennadel zur Aufnahme des Steherfadens. Nachteilig ist bei dieser Vorrichtung, daß hier die Fäden umgelenkt werden.DE-GM 85 05 367 is a device for forming a Leno edge known, two leno threads and one Upright thread are provided. The guidance of the leno threads takes place here crosswise one above the other in a backdrop arranged inclined slots for guiding the leno threads and a so-called standing thread needle for receiving the Standing thread. The disadvantage of this device is that here the threads are redirected.

Aus der DE-OS 31 08 662 ist ebenfalls eine Vorrichtung zum Bilden einer Gewebekante bekannt; hierbei ist eine drehbare Kulisse vorgesehen, die die beiden Dreherfäden aufnimmt. Oberhalb der drehbaren Kulisse befindet sich eine Nadel zur Führung des Steherfadens. Nachteilig hierbei ist, daß zumindest der Steherfaden mindestens zweimal scharf umgelenkt wird.From DE-OS 31 08 662 is also a device for Form a fabric edge known; here is a rotatable Provided backdrop that receives the two leno threads. There is a needle above the rotating backdrop Guiding the upright thread. The disadvantage here is that at least the upright thread is sharply deflected at least twice becomes.

Eine ähnliche Konstruktion zeigt die De 40 38 256; aber auch hier wird zumindest der Steherfaden zweimal scharf umgelenkt, weshalb auch hier bei Verwendung entsprechender Fäden die Gefahr von Fadenbrüchen besteht.A similar construction shows the De 40 38 256; but also here at least the upright thread is turned twice sharply, which is why when using appropriate threads There is a risk of thread breaks.

Aus der US-PS 48 69 297 ist eine Vorrichtung der eingangs genannten Art bekannt. Diese Vorrichtung besitzt eine senkrecht stehende Nadel, die eine endseitige Öse zur Führung des Steherfadens aufweist. Darüber hinaus sind zwei Dreherfäden vorgesehen, die durch einen mit zwei Ösen versehenen Block geführt sind. Der Abstand der beiden Ösen ist hierbei derart, daß die Nadel zwischen die beiden durch den Block geführten Dreherfäden eintauchen kann. Zur Abbindung ist nunmehr vorgesehen, daß dieser Block drehbar ausgebildet ist.From US-PS 48 69 297 is a device of the beginning known type known. This device has one vertical needle, which has an end eyelet for guidance of the upright thread. In addition, there are two Leno threads provided by one with two eyelets provided block are guided. The distance between the two eyelets is such that the needle passes between the two can immerse the block of guided leno threads. For Bonding is now provided that this block is rotatable is trained.

Nachteilig an dieser Vorrichtung ist, daß der Steherfaden in einer Endstellung zweimal scharf umgelenkt wird, und zwar einmal, wenn der Faden die Öse verläßt und das andere Mal, wenn der Steherfaden im Bereich des unteren Endes der Nadel durch den Block umgelenkt wird. Insbesondere bei der Verwendung von qualitativ minderwertigen Garnen oder auch Glaserfaserfäden, führt dies unweigerlich zu einem Reißen bzw. zum Bruch der Fäden.A disadvantage of this device is that the upright thread in an end position is sharply deflected twice, namely once when the thread leaves the eyelet and the other time if the upright thread is in the area of the lower end of the needle is redirected by the block. Especially with the Use of low quality yarns or too Glass fiber threads, this inevitably leads to tearing or to break the threads.

Ausgehend von diesem Stand der Technik, liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, bei der die zur Bildung der Gewebekante verwendeten Fäden nicht derart umgelenkt werden, daß dies zu einem Bruch der Fäden führen kann.The invention lies on the basis of this prior art the task of a device of the aforementioned To create the way to form the fabric edge used threads are not deflected such that this too break the threads.

Die Aufgabe wird erfindungsgemäß dadurch erreicht, daß die Fadenführungselemente zur Führung der Dreherfäden bzw. des Steherfadens als Nadeln ausgebildet sind, wobei die beiden Nadeln für die Dreherfäden parallel und mit Abstand derart zueinander verlaufend durch eine drehbare Halterung aufnehmbar sind, daß die Nadel für den Steherfaden zwischen die Nadeln für die Dreherfäden eintauchen kann.The object is achieved in that the Thread guide elements for guiding the leno threads or the Steady thread are designed as needles, the two Needles for the leno threads parallel and at a distance like this mutually extending by a rotatable bracket are recordable that the needle for the upright thread between can insert the needles for the leno threads.

Durch den Freiraum zwischen den beiden Nadeln wird erreicht, daß die andere Nadel, die den Steherfaden aufnimmt, zwischen die beiden Nadeln eintauchen kann, ohne daß hierbei weder die Dreherfäden noch der Steherfaden umgelenkt werden. Das heißt, daß mit der erfindungsgemäßen Vorrichtung auch problematische Garne bzw. auch Glasfaserfäden verarbeitet werden können.The space between the two needles ensures that that the other needle, which picks up the stand thread, between can immerse the two needles, without this neither the Leno threads can still be deflected. This means, that with the device according to the invention also problematic Yarns or glass fiber threads can be processed.

Durch die drehbare Halterung werden die Dreherfäden in einer Offenfachstellung bei Drehung der Halterung miteinander verdrillt, nämlich dann, wenn die Steherfadennadel und die Dreherfadennadeln nicht im miteinander gekreuzten Zustand sind, im folgenden kurz als "Offenstellung" der Nadeln bezeichnet. Die "Geschlossenstellung" der Nadeln liegt vor, wenn die Drehernadeln und die Stehernadel gekreuzt sind. D. h., daß die Verdrillung der Dreherfäden nur bei jedem zweiten Fachwechsel erfolgt. Dies ist insofern von Vorteil, als hierdurch die Bindung weniger aufträgt, d. h. weniger stark wird, als wenn bei jedem Fachwechsel eine Verdrillung stattfinden und mithin jeder Schußfaden abgebunden würde.The rotatable holder turns the leno threads in one Open compartment position when the bracket rotates with each other twisted, namely when the standing thread needle and the Leno thread needles not in crossed condition are briefly in the following as "open position" of the needles designated. The "closed position" of the needles exists when the turning needles and the standing needle are crossed. D. that is, the twisting of the leno threads only every second Subject change takes place. This is advantageous in that this makes the bond less bulky, d. H. less strong is like a twist with every change of subject would take place and therefore every weft would be tied.

Durch die Ausbildung der Fadenführungselemente als Nadeln, wird ein weiterer Vorteil offenbar, der darin besteht, daß die Fäden, z. B. nach einem Fadenriß, problemlos wieder eingeholt werden können, indem nämlich eine Nadel durch die hülsenförmige Nadel geschoben, am anderen Ende der Faden eingelegt und durch die hülsenförmige Nadel hindurchgezogen wird.By designing the thread guide elements as needles, another advantage is evident, which is that the threads, e.g. B. after a thread break, easily again can be caught by a needle through the sleeve-shaped needle pushed, at the other end the thread inserted and pulled through the sleeve-shaped needle becomes.

Nach einem weiteren Merkmal der Erfindung ist ein gesonderter Antrieb für die Fadenführungselemente vorgesehen; in diesem Fall arbeitet die Vorrichtung schaftunabhängig. Dieser Antrieb bewegt die Fadenführungselemente unabhängig von der Schaftbewegung der Webmaschine, wodurch die Möglichkeit eröffnet wird, daß der Schußfaden bereits abgebunden wird, bevor die Schäfte ihre jeweilige Endstellung (Geschlossenstellung bzw. Offenstellung der Nadeln) erreicht haben. Hierdurch kann Schußfadenabfall reduziert werden. Denkbar ist allerdings auch, daß die Vorrichtung über die Webschäfte angetrieben wird (schaftabhängiger Antrieb). Im einzelnen umfaßt der Antrieb einen Schwenkarm zur Aufnahme der drehbaren Halterung und einen Schwenkarm für das Fadenführungselement des Steherfadens. Die Schwenkarme sind durch Pleuelstangen verschwenkbar mit einer angetriebenen Kurbelwelle verbunden. Durch einen derartigen Antrieb ist gewährleistet, daß die Schwenkarme und mithin die daran angeordneten Fadenführungselemente sich scherenartig zur Öffnung des Faches bzw. zum Schließen des Faches voneinander weg bzw. aufeinander zu bewegen, wobei in jeder Endstellung, also sowohl in Offenstellung als auch in Geschlossenstellung, ein Schußfadeneintrag erfolgt.According to another feature of the invention is a separate one Drive provided for the thread guide elements; in this In this case, the device works independently of the shaft. This Drive moves the thread guide elements independently of the Shaft movement of the weaving machine, giving the possibility it is opened that the weft is already tied, before the stems reach their respective end positions (Closed position or open position of the needles) reached to have. As a result, weft waste can be reduced. However, it is also conceivable that the device on the Heald frames are driven (shaft-dependent drive). in the individual, the drive includes a swivel arm for receiving the rotatable bracket and a swivel arm for the Thread guiding element of the upright thread. The swivel arms are swiveling by means of connecting rods with a driven one Crankshaft connected. By such a drive ensures that the swivel arms and therefore the attached arranged thread guide elements to scissors Opening the compartment or closing the compartment from each other to move away or towards each other, in each end position, so both in the open position and in the closed position, a weft thread is inserted.

Für die drehbare Halterung ist nach einem weiteren Merkmal der Erfindung ein Exzenterantrieb vorgesehen. Hierzu weist die Halterung eine den Schwenkarm durchragende Achse auf, die drehbar von dem Schwenkarm aufnehmbar ist, wobei die Achse endseitig eine Exzenterscheibe aufweist, die durch eine Schubstange mit einem Schwenkhebel verbindbar ist, der durch eine Nockenscheibe verschwenkbar betätigbar ist.For the rotatable bracket is another feature the invention provides an eccentric drive. This points the bracket on an axis extending through the swivel arm is rotatable from the swivel arm, the axis has an eccentric disc at the end, which by a Push rod can be connected to a swivel lever, which by a cam disk can be pivoted.

Wie bereits oben ausgeführt, ist die drehbare Halterung nur in Offenstellung der Nadeln verdrehbar, nicht jedoch in Geschlossenstellung. Um dieses zu gewährleisten, ist der Exzenterantrieb mit der Kurbelwelle verbunden, und zwar vorzugsweise im Ubersetzungsverhältnis 1:2. D. h., daß durch dieses Ubersetzungsverhältnis gewährleistet ist, daß eine Verdrillung der Dreherfäden, und mithin ein Abbinden des Schußfadens, nur bei jedem zweiten Fachwechsel erfolgt, nämlich in Offenfachstellung der Nadeln.

Fig. 1
zeigt die gesamte Vorrichtung in einer Seitenansicht;
Fig. 2
zeigt einen Schnitt gemäß der Linie II-II aus Fig. 1, wobei etwaige Lager der Übersicht wegen fortgelassen sind;
Fig. 3
zeigt schematisch den Einbau der Vorrichtung an einer Webmaschine;
Fig. 4 u. Fig. 5
zeigen schematisch den Vorgang der Bindung;
Fig. 6
zeigt die Bindung bestehend aus zwei Dreherfäden und einem Steherfaden.
As already stated above, the rotatable holder can only be rotated in the open position of the needles, but not in the closed position. To ensure this, the eccentric drive is connected to the crankshaft, preferably in a ratio of 1: 2. This means that this ratio ensures that the leno threads are twisted, and consequently the weft thread sets, only with every second change of subject, namely in the open subject position of the needles.
Fig. 1
shows the entire device in a side view;
Fig. 2
shows a section along the line II-II of Figure 1, any bearings are omitted for clarity.
Fig. 3
shows schematically the installation of the device on a loom;
Fig. 4 u. Fig. 5
schematically show the process of binding;
Fig. 6
shows the binding consisting of two leno threads and a stand thread.

Im folgenden werden die Fadenführungselemente für die Dreherfäden als Dreherfadennadeln bzw. Dreherfadennadelpaar bezeichnet und die Fadenführungsvorrichtung für den Steherfaden als Steherfadennadel.The following are the thread guide elements for the Leno threads as leno needle or leno needle pair referred to and the thread guide device for Standing thread as a standing thread needle.

In der in Fig. 1 und 2 dargestellten Vorrichtung 1 mit dem Gehäuse 1a ist die Steherfadennadel mit 2 und das Dreherfadennadelpaar mit 3 bezeichnet. Das Dreherfadennadelpaar 3 besteht aus den beiden Dreherfadennadeln 3a und 3b. Das Dreherfadennadelpaar 3 wird von der insgesamt mit 4 bezeichneten drehbaren Halterung aufgenommen. Die Steherfadennadel 2 ist relativ zu dem Dreherfadennadelpaar 3 derart angeordnet, daß die Steherfadennadel 2 zwischen die Dreherfadennadeln 3a, 3b eintauchen kann, wie in Fig. 1 dargestellt. Der insgesamt mit 13 bezeichnete Antrieb umfaßt die beiden Schwenkarme 5 u. 6,die durch die Schwenkachsen 11, 12 in dem Gehäuse 1a drehbar gelagert sind. Die Schwenkarme 5 und 6 besitzen jeweils eine Bohrung 5a, 6a zur Aufnahme der drehbaren Halterung 4 bzw. der Steherfadennadel 2, wobei durch die Halterung 4 bzw. durch die Bohrung 6a hindurch die Dreherfäden 2 bzw. der Steherfaden 8 zu den jeweiligen Nadeln geführt werden. Zur Führung der Dreherfäden 7a, 7b bzw. des Steherfadens 8 zu den entsprechenden Nadeln sind Fadenführer 9a, 9b bzw. 10 vorgesehen.In the device 1 shown in FIGS. 1 and 2 with the Housing 1a is the standing thread needle with 2 and that Dreherfadennadelpaar designated 3. The Leno thread pair 3 consists of the two Leno thread needles 3a and 3b. The leno thread pair 3 will of the rotatable bracket, designated overall by 4 added. The standing thread needle 2 is relative to that Dreherfadennadelpaar 3 arranged such that the Standing thread needle 2 between the leno thread needles 3a, 3b can immerse, as shown in Fig. 1. The total with 13 designated drive includes the two swivel arms 5 u. 6, through the pivot axes 11, 12 in the housing 1a are rotatably mounted. The swivel arms 5 and 6 have each have a bore 5a, 6a for receiving the rotatable Bracket 4 or the standing thread needle 2, with the Bracket 4 or through the hole 6a Leno threads 2 or the standing thread 8 for the respective needles be performed. To guide the leno threads 7a, 7b and Steady thread 8 to the corresponding needles are thread guides 9a, 9b and 10 are provided.

Angetrieben werden die Schwenkarme 5 u. 6 durch die Pleuelstangen 14, 15, die mit der insgesamt mit 16 bezeichneten Kurbelwelle in Verbindung stehen. Die Kurbelwelle 16 weist die beiden Exzenter 16a, 16b auf, durch die bewirkt wird, daß die daran angeordneten Pleuelstangen 14, 15 zu gleicher Zeit aufeinander zubewegt bzw. voneinander wegbewegt werden.The swivel arms 5 are driven. 6 through the Connecting rods 14, 15 with the total of 16 designated crankshaft are connected. The Crankshaft 16 has the two eccentrics 16a, 16b which causes the connecting rods arranged thereon 14, 15 moved towards one another or from one another at the same time be moved away.

Die insgesamt mit 4 bezeichnete drehbare Halterung steht mit dem insgesamt mit 17 bezeichneten Exzenterantrieb in Verbindung. Die drehbare Halterung 4 weist die hohle Achse 18 auf, die von dem Schwenkarm 5 in der Bohrung 5a drehbar aufgenommen wird. Endseitig besitzt die hohle Achse 18 die Exzenterscheibe 19. Die hohle Achse 18 dient ebenfalls der Durchführung der Dreherfaden 7a, 7b. Zum Antrieb der Exzenterscheibe ist die Schubstange 20 vorgesehen, die mit dem Schwenkhebel 21 in Verbindung steht. Die Verbindung der Schubstange mit der Exzenterscheibe einerseits und dem Schwenkhebel andererseits erfolgt jeweils über ein Kugelgelenk 20a. Der Schwenkhebel 21, der durch die Achse 21a von dem Gehäuse 1a drehbar gehalten ist, besitzt das Kurvenrad 21b, das mit der Nockenscheibe 22 mit dem Nocken 22a derart zusammenwirkt, daß der Schwenkhebel 21 durch den Nocken 22a der Nockenscheibe 22 bei Drehung der Nockenscheibe ausgelenkt wird. Der Antrieb der Nockenscheibe 22 erfolgt über einen Riemen 23. Für den Antrieb des Riemens 23 ist der an der Kurbelwelle 16 angeordnete Abtrieb 16c vorgesehen. Zwischen dem Abtrieb 16c und der Nockenscheibe 22 besteht ein Übersetzungsverhältnis von 1:2. D. h., daß die Nockenscheiben 22 bei einer vollen Umdrehung des Abtriebs 16c lediglich eine halbe Umdrehung ausführt. Zur Rückstellung des ausgelenkten Schwenkhebels 21 dient die Rückholfeder 24.The rotatable bracket, designated overall by 4, is also available the total of 17 eccentric drive in Connection. The rotatable bracket 4 has the hollow axis 18 on which is rotatable by the pivot arm 5 in the bore 5a is recorded. At the end, the hollow axis 18 has the Eccentric disc 19. The hollow axis 18 also serves Implementation of the leno thread 7a, 7b. To drive the Eccentric disc, the push rod 20 is provided with the pivot lever 21 is connected. The connection of the Push rod with the eccentric disc on the one hand and the Swing levers on the other hand are each via a Ball joint 20a. The pivot lever 21 through the axis 21a is rotatably supported by the housing 1 a Cam wheel 21b, which with the cam disc 22 with the cam 22a cooperates such that the pivot lever 21 through the Cam 22a of the cam disk 22 when the cam disk rotates is deflected. The cam disk 22 is driven via a belt 23 for driving the belt 23 Output 16c arranged on the crankshaft 16 is provided. There is a between the output 16c and the cam disk 22 Gear ratio of 1: 2. That is, the cam discs 22 only one during a full rotation of the output 16c half a turn. To reset the deflected The return spring 24 is used for the pivot lever 21.

Die Arbeitsweise der Vorrichtung ist nun derart, daß durch die Pleuelstangen 14, 15 die Schwenkarme 5, 6 nach jedem Schußeintrag entweder aufeinander zubewegt werden (Geschlossenstellung der Nadeln) oder voneinander wegbewegt werden (Offenstellung der Nadeln). Die Verdrehung der Dreherfadennadeln 3a, 3b durch die drehbare Halterung 4 erfolgt nur in der Stellung Offenfach, d. h . in der Stellung, in der die Steherfadennadel 2 nicht zwischen den beiden Dreherfadennadeln 3a, 3b eingetaucht ist. D. h. aber auch, daß eine Verdrillung der Dreherfäden unter Kreuzung des Steherfadens nur bei jedem zweiten Schußeintrag erfolgt. Um zu gewährleisten, daß eine derartige Verdrillung nur bei jedem zweiten Schußeintrag erfolgt, ist die Übersetzung zwischen dem Abtrieb 16c und der Nockenscheibe 22 im Verhältnis 1:2 gewählt. Kommt nun die Nockenscheibe mit dem Nocken 22a in den Bereich des Kurvenrades 21b, dann wird der Schwenkhebel 21 in Richtung des Pfeiles 25 ausgelenkt. Hierbei wird die Exzenterscheibe 19 in Richtung des Pfeiles 26 aus der Zeichenebene heraus verschwenkt. Der Schwenkwinkel der Exzenterscheibe 19 beträgt hierbei etwa 180 °.The operation of the device is now such that the connecting rods 14, 15 the swivel arms 5, 6 after each Weft entry can either be moved towards each other (Closed position of the needles) or moved away from each other (open position of the needles). The twisting of the Leno thread needles 3a, 3b through the rotatable holder 4 takes place only in the open subject position, d. H . in the Position in which the standing thread needle 2 is not between the two leno thread needles 3a, 3b is immersed. That is, but also that a twisting of the leno threads while crossing the Upright thread only occurs every second weft entry. To ensure that such a twist only at Every second shot entry is the translation between the output 16c and the cam disk 22 selected in a ratio of 1: 2. Now comes the cam disc the cam 22a in the area of the cam wheel 21b, then the pivot lever 21 is deflected in the direction of arrow 25. Here, the eccentric 19 in the direction of the arrow 26 pivoted out of the drawing plane. The swivel angle the eccentric disc 19 is approximately 180 °.

Aus Fig. 3 ergibt sich die Anordnung der Vorrichtung in bezug auf die Webschäfte. Die mit 1 bezeichnete Vorrichtung ist vom Kettbaum 27 aus gesehen vor den Webschäften 28, 29 angeordnet, die die Litzen 33 für die Kettfäden 34 tragen. Befestigt ist die Vorrichtung 1 an der Webmaschine durch die Traverse 30. Aus der Zeichnung ist eben falls erkennbar das Riet 31, das zum Anschlag des Schußfadens (nicht dargestellt) dient. Das fertige Gewebe wird durch den Gewebebaum 32 aufgenommen.3 shows the arrangement of the device in relation on the heald frames. The device designated 1 is from Warp beam 27 seen in front of the heald frames 28, 29 arranged, which carry the strands 33 for the warp threads 34. The device 1 is attached to the loom by the Traverse 30. From the drawing is also recognizable that Advised 31 that to stop the weft thread (not shown) serves. The finished tissue is through the tissue tree 32nd added.

Der Vorgang der Verdrillung der Dreherfäden 7a, 7b unter Kreuzung des Steherfadens 8 und mithin das Entstehen der Gewebekante wird anhand der Fig. 4 und 5, in denen die gesamte Vorrichtung lediglich schematisch dargestellt ist, verdeutlicht werden. In der in Fig. 4 dargestellten Stellung der Dreherfadennadeln 3a, 3b relativ zu der Steherfadennadel ist das Fach geöffnet. Nach Eintrag des Schußfadens (nicht dargestellt) wird die drehbare Halterung 4 um 180 ° verschwenkt. Mithin werden die beiden Dreherfäden miteinander unter Abbindung des Schußfadens und Kreuzung des Steherfadens verdrillt.The process of twisting the leno threads 7a, 7b below Crossing the thread 8 and thus the emergence of 4 and 5, in which the entire device is shown only schematically, be made clear. In the position shown in Fig. 4 the leno thread needles 3a, 3b relative to the main thread needle the compartment is open. After entering the weft thread (not shown), the rotatable bracket 4 by 180 ° panned. The two leno threads are therefore together tying the weft and crossing the upright twisted.

Alsdann werden die Nadeln in die Stellung gemäß Fig. 5 gebracht. Nach wiederum einem Schußeintrag werden die Nadeln wieder in die Position gemäß Fig. 4 gebracht, worauf dann wiederum ein Verdrehen der drehbaren Halterung erfolgt, jetzt jedoch genau in die entgegengesetzte Richtung, wie beim ersten Drillvorgang.The needles are then in the position shown in FIG. 5 brought. After another weft entry, the needles brought back into the position shown in FIG. 4, then again, the rotatable bracket is rotated, now however, in exactly the opposite direction as with first drill.

Hierbei entsteht eine Abbildung gem. Fig. 5; aus der erkennbar ist, daß nur jeder zweite Schußfaden 35 durch eine Verdrillung der beiden Dreherfäden 7a, 7b abgebunden wird. Dies rührt daher, daß in der Stellung gemäß Fig. 5 eine Verdrehung des Dreherfadennadelpaares 3 nicht stattfinden kann.This creates an image acc. Fig. 5; from the it can be seen that only every second weft 35 by a Twisting of the two leno threads 7a, 7b is tied. This is due to the fact that in the position shown in FIG Twisting of the leno needle pair 3 does not take place can.

Claims (9)

  1. Device for forming a fabric edge with two doup ends (7a, 7b) and one stationary thread (8) in which there are thread guides (3a, 3b or 2, resp.) for the doup ends (7a, 7b) and the stationary thread (8), the doup ends (7a, 7b) can be twisted together after every second weft insertion with the crossing of the stationary thread (8), the thread guides (3a, 3b or 2, resp.) for the doup ends (7a, 7b) and the thread guides (3a, 3b or 2, resp.) for the stationary thread (8) are fitted to pivot towards each other to form a shed between the doup ends (7a, 7b) on the one hand and the stationary thread (8) on the other,
    characterized in that
    the thread guides (3a, 3b or 2 resp.) take the form of needles to guide the doup ends (7a, 7b) or the stationary thread (8), whereby the two needles (3a, 3b) for the doup ends are parallel and spaced apart through a rotary support (4) in such a way that the needle (2) for the stationary thread (8) can penetrate between the needles for the stationary thread (8) can penetrate between the needles for the doup ends (7a, 7b).
  2. Device according to claim 1,
    characterized in that the needles (3a, 3b or 2 resp.) have the shape of a tube for guiding the doup ends or the stationary thread.
  3. Device according to one of the previous claims,
    characterized in that an actuation (13, 17) is provided for the needles (2a, 3a, 3b).
  4. Device according to one of the previous claims,
    characterized in that the actuation (13) includes a swivel arm (5) for the rotary support (4) and a swivel arm (6) for the needles (2) of the stationary thread (8).
  5. Device according to one of the previous claims,
    characterized in that the swivel arms (5, 6) can be swept horizontally by the connecting rods (14, 15), whereas the connecting rods (14, 15) are connected with an actuated crankshaft (16).
  6. Device according to one of the previous claims,
    characterized in that the rotary support (4) has an eccentric actuation (17).
  7. Device according to one of the previous claims,
    characterized in that the support (4) has a hollow axis (18) that traverses the swivel arm (15) and that can be pivotally received by the swivel arm (15), whereby the axis (18) has an eccentric disk (19) at its end, whereas the eccentric disk (19) can be connected with a swivelling lever (21) which can be actuated pivotally by means of a cam disk (22).
  8. Device according to one of the previous claims,
    characterized in that the rotary support (4) can only be pivoted in the open position of the shed.
  9. Device according to one of the previous claims,
    characterized in that the eccentric actuation (17) is connected with the crankshaft (16) in a transmission ratio of 1:2.
EP96908129A 1995-05-19 1996-03-23 Device for forming a fabric edge Expired - Lifetime EP0826079B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19518427 1995-05-19
DE19518427 1995-05-19
DE19520500 1995-06-03
DE19520500A DE19520500C1 (en) 1995-05-19 1995-06-03 Twist selvedge for fabrics from brittle yarns e.g. glass fibre
PCT/EP1996/001294 WO1996036751A1 (en) 1995-05-19 1996-03-23 Device for forming a fabric edge

Publications (2)

Publication Number Publication Date
EP0826079A1 EP0826079A1 (en) 1998-03-04
EP0826079B1 true EP0826079B1 (en) 1999-06-02

Family

ID=26015290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96908129A Expired - Lifetime EP0826079B1 (en) 1995-05-19 1996-03-23 Device for forming a fabric edge

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US (1) US5857495A (en)
EP (1) EP0826079B1 (en)
JP (1) JP3232100B2 (en)
CZ (1) CZ285207B6 (en)
DE (1) DE59602107D1 (en)
WO (1) WO1996036751A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3232100B2 (en) * 1995-05-19 2001-11-26 トーマス クロッカー Equipment for forming fabric edges
BE1015461A6 (en) * 2003-03-18 2005-04-05 Picanol Nv DEVICE FOR FORMING A selvedge TO A TISSUE.
JP2014015699A (en) * 2012-06-12 2014-01-30 Tsudakoma Corp Selvage forming apparatus for loom
JP6071391B2 (en) * 2012-06-13 2017-02-01 津田駒工業株式会社 Loom ear forming device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1563842A (en) * 1968-01-18 1969-04-18
US3794083A (en) * 1972-04-28 1974-02-26 Fieldcrest Mills Inc Selvage forming apparatus for looms
CH595490A5 (en) * 1976-03-25 1978-02-15 Rueti Ag Maschf
DE3108662A1 (en) * 1981-03-07 1982-09-23 Gebrüder Schmeing, 4280 Borken Device for producing a fabric centre selvedge
DE8505367U1 (en) * 1985-02-25 1985-05-30 Klöcker-Entwicklungs-GmbH, 4280 Borken Device for producing a fabric edge provided with a binding
BE1000443A4 (en) * 1987-03-30 1988-12-06 Picanol Nv DEVICE FOR FORMING A seamy, respectively SELF SIDES, ON FABRIC.
EP0319182B1 (en) * 1987-11-30 1993-09-29 EIC Laboratories, Inc. Overcharge protection of secondary, non-aqueous batteries
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.
JP3232100B2 (en) * 1995-05-19 2001-11-26 トーマス クロッカー Equipment for forming fabric edges

Also Published As

Publication number Publication date
WO1996036751A1 (en) 1996-11-21
US5857495A (en) 1999-01-12
CZ285207B6 (en) 1999-06-16
JP3232100B2 (en) 2001-11-26
DE59602107D1 (en) 1999-07-08
EP0826079A1 (en) 1998-03-04
JPH11505298A (en) 1999-05-18
CZ366897A3 (en) 1998-03-18

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