EP1853757B1 - Pulley element for a jacquard machine - Google Patents

Pulley element for a jacquard machine Download PDF

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Publication number
EP1853757B1
EP1853757B1 EP06707312A EP06707312A EP1853757B1 EP 1853757 B1 EP1853757 B1 EP 1853757B1 EP 06707312 A EP06707312 A EP 06707312A EP 06707312 A EP06707312 A EP 06707312A EP 1853757 B1 EP1853757 B1 EP 1853757B1
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EP
European Patent Office
Prior art keywords
pulley
bearing
block element
element according
pulley block
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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.)
Not-in-force
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EP06707312A
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German (de)
French (fr)
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EP1853757A1 (en
Inventor
Walter Grosse Jac Webereimaschinen GmbH KEIM
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Hongsheng (HISUN) Group Co Ltd
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Hongsheng (HISUN) Group Co Ltd
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Publication of EP1853757A1 publication Critical patent/EP1853757A1/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types
    • D03C3/42—Arrangements of lifting-cords
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
    • D03C3/00—Jacquards
    • D03C3/24—Features common to jacquards of different types

Definitions

  • the present invention relates to a pulley element according to the preamble of claim 1 which is intended for use in a jacquard machine.
  • a so-called roll train system is preferably used.
  • two half-boards work via a flexible strand - the so-called strands - on a first roll of a pulley element to produce one of two possible open shed positions.
  • the stroke of the roll is reduced in this arrangement to half of the board stroke.
  • a second roller which is arranged in the roller train housing in a fixed relation to the first roller, as well as a second stroller with a fixed and a loose end of the original board stroke is generated at the loose top of the stripe again.
  • the pole end controlled in this way with respect to its position is then connected to at least one harness cord for lifting a warp thread.
  • the present invention is accordingly based on the object to provide a pulley element for use in a Jacquard machine, which is inexpensive to manufacture and meets the above requirements.
  • the present invention is based on the idea to use a pulley element which has only a single bearing.
  • a pulley element which has only a single bearing.
  • the use of a low-cost quality ball bearing from the catalog should also be possible in particular.
  • two bearings are used in principle, wherein on the outer ring of the respective bearing in each case a pulley is freely movable.
  • the inner ring of the two bearings is fixed in each case and is not used for the rotation.
  • the subject of the present invention sits on the outer ring also a pulley, at the same time, however, the inner ring of the bearing is used to hold a second pulley.
  • the use of a single bearing is sufficient to accomplish the tasks of a classic reel-to-reel element. Accordingly, thus both the volume and the weight of the pulley element can be significantly reduced compared to conventional solutions.
  • a roller pull element for use in a jacquard machine, which has at least one first pulley for guiding a first strut and at least one second pulley for guiding a second stroller, wherein one of the two struts with at least one board and the other strands with at least one harness cord for lifting a warp thread is connected and wherein the first and the second pulley are independently rotatably supported.
  • the reel-train element comprises a bearing consisting of an inner ring and an outer ring, wherein the inner ring and the outer ring of the bearing are independently rotatable and wherein one of the two pulleys is connected to the inner ring and the other pulley to the outer ring of the bearing.
  • one of the two struts is preferably designed as a double strut, wherein then the inner ring of the bearing with two second Rope rolls is connected, which are arranged on both sides of the first pulley.
  • the two second pulleys are preferably designed approximately angularly in cross-section and have on the side facing the outside of the bearing end face in each case a guide or rope groove for the strands.
  • the first pulley facing inner surfaces of the two second pulleys are formed approximately complementary to the outer surfaces of the first pulley. This ensures that small gap widths occur between the various components of the roll tension element according to the invention and these can thus also be used at the same time as a labyrinth for the ball bearing. An additional sealing of the bearing is therefore no longer required.
  • the pulleys are preferably arranged or capped within a housing.
  • the arrangement of the pulleys within the housing is in particular floating, wherein the housing is preferably designed in two parts in this case.
  • bearing ball bearing is preferably used, but it would also be possible to use a plain bearing.
  • the particular advantage of the solution according to the invention is that by reducing the required components to a single bearing, both the manufacturing costs and the weight of the pulley element can be substantially halved.
  • the result of this lower installation mass has the consequence that the entire jacquard machine on the one hand takes less weight and on the other hand longer service life can be achieved.
  • weaving plant consists essentially of the known components jacquard machine 1, harness 2 and loom 3, which in FIG. 1 are shown only schematically.
  • the associated boards 4 and 5 which are connected to one another via a first strut 6, merely indicated.
  • This strands 6 runs - as in Fig. 1 the control device of the jacquard machine 1, however, by means of which the lifting and lowering of the boards 4 and 5 causes and also their controlled holding is ensured in an upper position or a lower position, is in Fig. 1 not shown.
  • Devices with which this can be realized are also already well known from the prior art. In this case, in particular to the aforementioned EP 0 287 921 A1 referred to the applicant.
  • a Harnischniederzug 13 is connected to the strand 12 on the lower side of the eyelet 12a and brings the necessary restoring force for the entire system, so that force that ensures that the warp thread 14 with appropriate control of the boards 4 and 5 again from the Hochfach too can return to the lower fold position.
  • Previously used pulley elements usually consist of two pulleys, which are each arranged on a separate bearing. Usually they are Pulleys are arranged in vertical extension to each other to avoid asymmetric forces during tensile transfer. However, the use of two bearings has the consequence that known pulley elements have a relatively large height and are also relatively heavy.
  • FIG. 2 shows a perspective view of the roller pull element according to the invention
  • FIG. 3 shows the pulley element in section.
  • Rollenzug element 20 Rollenzug element is that this has only a single bearing 21.
  • this bearing 21 is preferably a ball bearing, but it would also be the use of a plain bearing conceivable. While in previously known pulley elements only the outer rings of the bearings used were rotatable, both the inner ring 22 and the outer ring 23 of the bearing 21 are rotatably arranged in the inventive roller train element 20.
  • the outer ring 23 of the bearing 21 is first connected to a first pulley 25, which is arranged on the peripheral surface of the outer ring 23 and thus rotates with this.
  • this pulley At its end face facing towards the outside, this pulley has a circumferential groove or rope groove 26, which is provided for guiding the first strut 6 connected to the sinkers.
  • the inner ring 22 of the bearing 21 is - as already mentioned - also rotatably mounted, and connected to a second pulley 30. Strictly speaking, the inner ring 22 is connected to two second pulleys 30 1 and 30 2 , which brings advantages in terms of a uniform load distribution with it. In particular, the occurrence of a Schiefzugs can be avoided due to the symmetrical arrangement.
  • the two second pulleys 30 1 and 30 2 are thus - seen in cross-section - angularly configured and have the outside of the bearing 21 facing end surfaces, which in turn are each provided with a groove or rope groove 31 1 and 31 2 .
  • the lower strut 8 is formed as a double strut with parallel strands 8 1 and 8 2 , which the already mentioned advantage with it brings that due to a symmetrical Anlagenver republic no Schiefzug occurs.
  • the double strut 8 has to be looped in on one side of the reel tensioning element 20 according to the invention and is then hooked with its loop end 8a to a holding part 50 which serves for fastening to the strut bottom 9.
  • the other end 8b of the strands 8, however, is connected to a fastening hook 51, which is provided for hanging a harness cord.
  • the double strut 8 is designed as an endless cord, which brings in terms of the storage and the leadership of the strands 8 and when hanging and connecting the same with the holding part 50 and the fastening hook 51 advantages.
  • both rings 22 and 23 of the bearing 21 are rotatable independently of each other, which therefore also applies to the pulleys 25 and 30, respectively.
  • the two struts 6 and 8 can thus be guided independently of each other via the pulley element 20.
  • the first pulley 25 facing inner surfaces of the two pulleys 30 1 , 30 2 are formed approximately complementary to the outer surfaces of the first pulley 25. This results in a very narrow gap 28 between the pulleys 25 and 30, which also forms a labyrinth for the ball bearing 21 at the same time. Further sealing measures for the bearing 21 are accordingly not necessarily required.
  • the bearing 21 is mounted or capped with the rope pulleys 25, 30 in a housing 35.
  • the storage takes place in particular floating, to ensure the free rotation of both bearing rings 22, 23.
  • the housing 35 is designed in two parts, wherein the two housing parts 36 and 37 can be locked together in a simple manner.
  • a beveled parting line of the housing 35 serves as an insertion aid.
  • a further object of the housing 35 is also to provide protection against contamination and to ensure a safe rejection of juxtaposed roller tension elements when passing the compartment equalization of the jacquard machine.
  • the middle or individual strut 6 is first hung, then the double strut 8 can slide freely in their own pulleys 30 1 , 30 2 .
  • a particular development of the preferably made of plastic housing 35 could also be to optically mark this according to the associated sample point of the loom.
  • the functional relationship of the various pulley elements could be characterized with respect to the weave pattern. In the case of required maintenance work, this makes it much easier to find the desired roll-pull element 20, which is of particular importance in view of the large number of roll-pull elements used in a loom.
  • roller pull element which in terms of the number of components used, its weight, as well as the manufacturing and material costs brings significant advantages compared to known pulley elements with it.
  • the simple design also leads to the fact that technical problems further reduced and accordingly the achievable service life can be significantly increased.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Pulleys (AREA)
  • Harvester Elements (AREA)
  • Knitting Machines (AREA)
  • Operation Control Of Excavators (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Metal Rolling (AREA)

Abstract

Pulley block for a Jacquard machine comprises a ring bearing with one pulley connected to the outer ring and another pulley connected to the inner ring, where the pulleys act as independently rotating guides for wires, one of which is attached to a sinker and the other of which is attached to a harness cord.

Description

Die vorliegende Erfindung betrifft ein Rollenzug-Element gemäß dem Oberbegriff des Anspruchs 1, welches zur Verwendung in einer Jacquardmaschine vorgesehen ist.The present invention relates to a pulley element according to the preamble of claim 1 which is intended for use in a jacquard machine.

Zur Erzeugung der so genannten Doppelhub-Offenfach-Arbeitsweise einer Jacquardmaschine, wie sie beispielsweise aus der EP 0 287 921 A1 der Anmelderin bekannt ist, wird vorzugsweise ein so genanntes Rollenzug-System eingesetzt. Bei diesem bekannten System arbeiten zwei Halbplatinen über eine flexible Litze - die so genannte Strupfe - auf eine erste Rolle eines Rollenzug-Elements, um eine von zwei möglichen Offenfachstellungen zu erzeugen. Der Hub der Rolle reduziert sich bei dieser Anordnung auf die Hälfte des Platinenhubes. Mit einer zweiten Rolle, die im Rollenzuggehäuse in einer festen Relation zur ersten Rolle angeordnet ist, sowie einer zweiten Strupfe mit einem festen und einem losen Ende wird der ursprüngliche Platinenhub am losen Strupfenende wieder erzeugt. Das auf diese Weise hinsichtlich seiner Position gesteuerte Strupfenende ist dann mit mindestens einer Harnischschnur zum Anheben eines Kettfadens verbunden.To produce the so-called Doppelhub-Offenfach-operation of a jacquard machine, as for example from the EP 0 287 921 A1 the applicant is known, a so-called roll train system is preferably used. In this known system, two half-boards work via a flexible strand - the so-called strands - on a first roll of a pulley element to produce one of two possible open shed positions. The stroke of the roll is reduced in this arrangement to half of the board stroke. With a second roller, which is arranged in the roller train housing in a fixed relation to the first roller, as well as a second stroller with a fixed and a loose end of the original board stroke is generated at the loose top of the stripe again. The pole end controlled in this way with respect to its position is then connected to at least one harness cord for lifting a warp thread.

In der heutigen Praxis werden Jacquardmaschinen mit bis zu 20.000 Musterstellen eingesetzt, wobei ebenso viele Rollenzüge bei einer derartigen Maschine erforderlich sind. Diese hohe Anzahl sowie die technischen Anforderungen an die Rollenzüge im Hinblick auf die Dimension, das Gewicht, die Wartungsfreiheit und die geforderten hohen Standzeiten führen dazu, dass der Gestaltung der Rollenzüge bei der Entwicklung einer Jacquardmaschine eine hohe Bedeutung zukommt. Die Bemühungen, hierbei immer weitere Fortschritte zu erzielen, wirken sich auf den Herstellungspreis aus.In today's practice jacquard machines are used with up to 20,000 samples, with as many reel trains are required in such a machine. This high number and the technical requirements of the roller trains in terms of dimension, weight, freedom from maintenance and the required long service life cause the design of the roller pulls in the development of a jacquard machine is of great importance. Efforts to continue to make progress in this regard affect the production price.

Bisherige Versuche, die oben genannten Kriterien zu erfüllen, beruhten im Wesentlichen darauf, die Rollenzüge durch Kunststoffteile zu bilden. Im Hinblick auf die damit erreichbaren Standzeiten waren diese Versuche allerdings nicht besonders erfolgreich.Previous attempts to meet the above criteria were essentially based on forming the pulleys by plastic parts. In view of the achievable service life, however, these attempts were not very successful.

Der vorliegenden Erfindung liegt dementsprechend die Aufgabe zu Grunde, ein Rollenzug-Element zur Verwendung in einer Jacquardmaschine anzugeben, welches kostengünstig herzustellen ist und die oben genannten Anforderungen erfüllt.The present invention is accordingly based on the object to provide a pulley element for use in a Jacquard machine, which is inexpensive to manufacture and meets the above requirements.

Die Aufgabe wird durch ein Rollenzug-Element mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.The object is achieved by a pulley element with the features of claim 1. Advantageous developments of the invention are the subject of the dependent claims.

Die vorliegende Erfindung basiert auf der Idee, ein Rollenzug-Element einzusetzen, welche lediglich ein einziges Lager aufweist. Aus Kostengründen sollte hierfür insbesondere auch die Verwendung eines preisgünstigen Qualitäts-Kugellagers aus dem Katalog möglich sein. Bei bislang bekannten Rollenzug-Elementen aus dem Stand der Technik werden grundsätzlich zwei Lager eingesetzt, wobei auf dem Außenring des jeweiligen Lagers jeweils eine Seilrolle frei beweglich ist. Der Innenring der beiden Lager hingegen ist jeweils festgesetzt und wird für die Drehung nicht weiter genützt.The present invention is based on the idea to use a pulley element which has only a single bearing. For cost reasons, the use of a low-cost quality ball bearing from the catalog should also be possible in particular. In previously known roller train elements from the prior art, two bearings are used in principle, wherein on the outer ring of the respective bearing in each case a pulley is freely movable. The inner ring of the two bearings, however, is fixed in each case and is not used for the rotation.

Beim Gegenstand der vorliegenden Erfindung sitzt auf dem Außenring ebenfalls eine Seilrolle, gleichzeitig wird allerdings auch der Innenring des Lagers zur Halterung einer zweiten Seilrolle genutzt. Durch diese Maßnahme ist die Verwendung eines einzigen Lagers ausreichend, um die Aufgaben eines klassischen Rollenzug-Elements zu erfüllen. Dementsprechend kann somit sowohl das Volumen als auch das Gewicht des Rollenzug-Elements im Vergleich zu klassischen Lösungen deutlich reduziert werden.The subject of the present invention sits on the outer ring also a pulley, at the same time, however, the inner ring of the bearing is used to hold a second pulley. By doing so, the use of a single bearing is sufficient to accomplish the tasks of a classic reel-to-reel element. Accordingly, thus both the volume and the weight of the pulley element can be significantly reduced compared to conventional solutions.

Erfindungsgemäß wird also ein Rollenzug-Element zur Verwendung in einer Jacquardmaschine vorgeschlagen, welches mindestens eine erste Seilrolle zur Führung einer ersten Strupfe sowie mindestens eine zweite Seilrolle zur Führung einer zweiten Strupfe aufweist, wobei eine der beiden Strupfen mit mindestens einer Platine und die andere Strupfe mit mindestens einer Harnischschnur zum Anheben eines Kettfadens verbunden ist und wobei die erste und die zweite Seilrolle unabhängig voneinander drehbar gelagert sind. Erfindungsgemäß weist das Rollenzug-Element ein aus einem Innenring und einem Außenring bestehendes Lager auf, wobei der Innenring und der Außenring des Lagers unabhängig voneinander drehbar sind und wobei eine der beiden Seilrollen mit dem Innenring und die andere Seilrolle mit dem Außenring des Lagers verbunden ist.According to the invention, therefore, a roller pull element is proposed for use in a jacquard machine, which has at least one first pulley for guiding a first strut and at least one second pulley for guiding a second stroller, wherein one of the two struts with at least one board and the other strands with at least one harness cord for lifting a warp thread is connected and wherein the first and the second pulley are independently rotatably supported. According to the invention, the reel-train element comprises a bearing consisting of an inner ring and an outer ring, wherein the inner ring and the outer ring of the bearing are independently rotatable and wherein one of the two pulleys is connected to the inner ring and the other pulley to the outer ring of the bearing.

Aus Gründen der Symmetrie ist vorzugsweise eine der beiden Strupfen als Doppelstrupfe ausgebildet, wobei dann der Innenring des Lagers mit zwei zweiten Seilrollen verbunden ist, welche zu beiden Seiten der ersten Seilrolle angeordnet sind. Durch diese Maßnahme wird erzielt, dass der Zug auf beide Strupfenenden gleichmäßig verteilt wird und dementsprechend kein Schiefzug auftritt. Die Doppelstrupfe kann in diesem Fall etwas schwächer ausgeführt sein, da sich die Belastung auf beide parallel verlaufenden Bereiche der Strupfe verteilt.For reasons of symmetry, one of the two struts is preferably designed as a double strut, wherein then the inner ring of the bearing with two second Rope rolls is connected, which are arranged on both sides of the first pulley. By this measure it is achieved that the train is evenly distributed on both ends of the straps and accordingly no skew occurs. In this case, the double strut may be somewhat weaker, since the load is distributed over both parallel areas of the strands.

Die beiden zweiten Seilrollen sind im Querschnitt vorzugsweise etwa winkelförmig ausgestaltet und weisen an der zur Außenseite des Lagers weisenden Stirnfläche jeweils eine Führungs- bzw. Seilrille für die Strupfe auf. Vorzugsweise sind die der ersten Seilrolle zugewandten Innenflächen der beiden zweiten Seilrollen in etwa komplementär zu den Außenflächen der ersten Seilrolle ausgebildet. Hierdurch ist sichergestellt, dass geringe Spaltbreiten zwischen den verschiedenen Komponenten des erfindungsgemäßen Rollenzug-Elements auftreten und diese somit gleichzeitig auch als Labyrinth für das Kugellager genutzt werden können. Eine zusätzliche Abdichtung des Lagers ist dementsprechend nicht weiter erforderlich.The two second pulleys are preferably designed approximately angularly in cross-section and have on the side facing the outside of the bearing end face in each case a guide or rope groove for the strands. Preferably, the first pulley facing inner surfaces of the two second pulleys are formed approximately complementary to the outer surfaces of the first pulley. This ensures that small gap widths occur between the various components of the roll tension element according to the invention and these can thus also be used at the same time as a labyrinth for the ball bearing. An additional sealing of the bearing is therefore no longer required.

Zum sicheren Führen der Strupfen in den Seilrillen sowie zum Schutz gegen Verschmutzung und zur sicheren Abweisung des Rollenzug-Elements beim Passieren der Fachgleichstellung der Jacquardmaschine sind die Seilrollen vorzugsweise innerhalb eines Gehäuses angeordnet bzw. gedeckelt. Die Anordnung der Seilrollen innerhalb des Gehäuses erfolgt dabei insbesondere schwimmend, wobei das Gehäuse in diesem Fall vorzugsweise zweiteilig ausgestaltet ist.For safe guidance of the straps in the rope grooves and to protect against contamination and for safe rejection of the roller train element when passing the compartment equalization of the jacquard machine, the pulleys are preferably arranged or capped within a housing. The arrangement of the pulleys within the housing is in particular floating, wherein the housing is preferably designed in two parts in this case.

Als Lager wird vorzugsweise ein Kugellager eingesetzt, es wäre allerdings auch denkbar, ein Gleitlager zu verwenden.As a bearing ball bearing is preferably used, but it would also be possible to use a plain bearing.

Der besondere Vorteil der erfindungsgemäßen Lösung besteht darin, dass durch die Reduzierung der erforderlichen Bauteile auf ein einziges Lager sowohl die Herstellungskosten als auch das Gewicht des Rollenzug-Elements im Wesentlichen halbiert werden können. Die hierdurch erzielte geringere Einbaumasse hat zur Folge, dass die gesamte Jacquardmaschine einerseits weniger Gewicht in Anspruch nimmt und andererseits längere Standzeiten erzielt werden können.The particular advantage of the solution according to the invention is that by reducing the required components to a single bearing, both the manufacturing costs and the weight of the pulley element can be substantially halved. The result of this lower installation mass has the consequence that the entire jacquard machine on the one hand takes less weight and on the other hand longer service life can be achieved.

Nachfolgend soll die Erfindung anhand der beiliegenden Zeichnung näher erläutert werden. Es zeigen:

Fig. 1
schematisch und stark vereinfacht einer Jacquard-Webanlage, bei der der Einsatz erfindungsgemäßer Rollenzug-Elemente vorgesehen ist;
Fig. 2
ein bevorzugtes Ausführungsbeispiel eines erfindungsgemäßen Rollenzug- Elements in perspektivischer Ansicht und
Fig. 3
das Rollenzug-Element nach Fig. 2 in Schnittdarstellung.
The invention will be explained in more detail with reference to the accompanying drawings. Show it:
Fig. 1
schematically and greatly simplified jacquard weaving, in which the use of inventive roller train elements is provided;
Fig. 2
a preferred embodiment of a roll tension element according to the invention in a perspective view and
Fig. 3
the rollover element after Fig. 2 in section.

Der grundsätzliche Aufbau eines Jacquard-Webstuhls ist hinlänglich bekannt und soll deshalb im Folgenden lediglich kurz zusammengefaßt werden. Die in Figur 1 dargestellte Webanlage besteht im Wesentlichen aus den an sich bekannten Komponenten Jacquardmaschine 1, Harnisch 2 und Webmaschine 3, die in Figur 1 lediglich schematisch dargestellt sind. Insbesondere sind bei der mit dem Bezugszeichen 1 versehenen Jacquardmaschine die zugehörigen Platinen 4 und 5, die über eine erste Strupfe 6 miteinander verbunden sind, lediglich angedeutet. Diese Strupfe 6 verläuft - wie in Fig. 1 lediglich schematisch angedeutet - über das erfindungsgemäße Rollenzug-Element 20. Die Steuereinrichtung der Jacquardmaschine 1 hingegen, mit deren Hilfe das Anheben und Absenken der Platinen 4 und 5 bewirkt und ferner deren gesteuertes Halten in einer oberen Stellung oder einer unteren Stellung sichergestellt wird, ist in Fig. 1 nicht dargestellt. Einrichtungen, mit denen dies realisiert werden kann, sind aus dem Stand der Technik ebenfalls bereits hinlänglich bekannt. Hierbei wird insbesondere auf die eingangs genannte EP 0 287 921 A1 der Anmelderin verwiesen.The basic structure of a jacquard loom is well known and will therefore be summarized below only briefly. In the FIG. 1 shown weaving plant consists essentially of the known components jacquard machine 1, harness 2 and loom 3, which in FIG. 1 are shown only schematically. In particular, in the jacquard machine provided with the reference numeral 1, the associated boards 4 and 5, which are connected to one another via a first strut 6, merely indicated. This strands 6 runs - as in Fig. 1 the control device of the jacquard machine 1, however, by means of which the lifting and lowering of the boards 4 and 5 causes and also their controlled holding is ensured in an upper position or a lower position, is in Fig. 1 not shown. Devices with which this can be realized are also already well known from the prior art. In this case, in particular to the aforementioned EP 0 287 921 A1 referred to the applicant.

Im Harnisch 2 der Webanlage ist eine zweite Strupfe 8 an einem Ende 8a fest an einer ortsfesten Strupfen- und Harnischführung, oftmals auch Strupfenboden 9 genannt, befestigt. Diese zweite Strupfe 8 läuft wiederum über das erfindungsgemäße Rollenzug-Element 20 und ist mit ihrem anderen, losen Ende 8b mit einer Harnischschnur 10 verbunden, die durch den Strupfenboden 9 geführt ist und ferner über ein ortsfestes so genanntes Chorbrett 11 verläuft. Unterhalb des Chorbretts 11 ist die Harnischschnur 10 mit einer Litze 12 verbunden, welche eine Öse 12a enthält, durch die ein Kettfaden 14 läuft. Der Kettfaden 14 wird gemäß der Ansteuerung der Platinen 4 und 5 also entsprechend dem vorgegebenen Jacquardmuster in eine Hoch- oder Tieffachstellung gebracht und dort gehalten. Ein Harnischniederzug 13 ist mit der Litze 12 an der unteren Seite der Öse 12a verbunden und bringt die notwendige Rückstellkraft für das gesamte System auf, also diejenige Kraft, die sicherstellt, dass der Kettfaden 14 bei entsprechender Ansteuerung der Platinen 4 und 5 wieder von der Hochfachstellung in die Tieffachstellung zurückkehren kann.In Harnisch 2 of the weaving a second strut 8 at one end 8a fixed to a fixed strutting and harness guide, often called also Strupfenboden 9, attached. This second strut 8 in turn passes over the reel tensioning element 20 according to the invention and is connected with its other, loose end 8b with a harness cord 10, which is guided by the strupper bottom 9 and further extends over a stationary so-called chimney 11. Below the choir board 11, the harness cord 10 is connected to a strand 12, which contains an eyelet 12a, through which a warp thread 14 passes. The warp thread 14 is thus brought in accordance with the control of the boards 4 and 5 according to the predetermined jacquard pattern in a high or low folding position and held there. A Harnischniederzug 13 is connected to the strand 12 on the lower side of the eyelet 12a and brings the necessary restoring force for the entire system, so that force that ensures that the warp thread 14 with appropriate control of the boards 4 and 5 again from the Hochfachstellung can return to the lower fold position.

Bislang verwendete Rollenzug-Elemente bestehen üblicherweise aus zwei Seilrollen, die jeweils auf einem eigenen Lager angeordnet sind. Üblicherweise sind die Seilrollen in vertikaler Verlängerung zueinander angeordnet, um asymmetrische Kräfte bei der Zugübertragung zu vermeiden. Die Verwendung von zwei Lagern hat allerdings zu Folge, dass bekannte Rollenzug-Elemente eine relativ große Bauhöhe aufweisen und darüber hinaus auch verhältnismäßig schwer sind.Previously used pulley elements usually consist of two pulleys, which are each arranged on a separate bearing. Usually they are Pulleys are arranged in vertical extension to each other to avoid asymmetric forces during tensile transfer. However, the use of two bearings has the consequence that known pulley elements have a relatively large height and are also relatively heavy.

Zur Vermeidung dieser Nachteile wird nunmehr erfindungsgemäß ein neuartiges Rollenzug-Element vorgeschlagen, welches in den Figuren 2 und 3 dargestellt ist. Figur 2 zeigt dabei eine perspektivische Ansicht der erfindungsgemäßen Rollenzug-Elements, während hingegen Figur 3 das Rollenzug-Element im Schnitt zeigt.To avoid these disadvantages, a novel roller pull element is now proposed according to the invention, which in the Figures 2 and 3 is shown. FIG. 2 shows a perspective view of the roller pull element according to the invention, while on the other hand FIG. 3 shows the pulley element in section.

Das besondere Merkmal das erfindungsgemäßen, allgemein mit dem Bezugszeichen 20 versehenen Rollenzug-Elements ist, dass dieses lediglich ein einziges Lager 21 aufweist. Bei diesem Lager 21 handelt es sich vorzugsweise um ein Kugellager, es wäre allerdings ebenso auch die Verwendung eines Gleitlagers denkbar. Während bei bislang bekannten Rollenzug-Elementen lediglich die Außenringe der verwendeten Lager drehbar waren, sind bei dem erfindungsgemäßen Rollenzug-Element 20 sowohl der Innenring 22 als auch der Außenring 23 des Lagers 21 drehbar angeordnet.The particular feature of the present invention, generally designated by the reference numeral 20 Rollenzug element is that this has only a single bearing 21. In this bearing 21 is preferably a ball bearing, but it would also be the use of a plain bearing conceivable. While in previously known pulley elements only the outer rings of the bearings used were rotatable, both the inner ring 22 and the outer ring 23 of the bearing 21 are rotatably arranged in the inventive roller train element 20.

Entsprechend der Schnittdarstellung in Figur 3 ist der Außenring 23 des Lagers 21 zunächst mit einer ersten Seilrolle 25 verbunden, welche an der Umfangsfläche des Außenrings 23 angeordnet ist und sich somit mit diesem dreht. An ihrer zur Außenseite hin weisenden Stirnfläche weist diese Seilrolle eine umlaufende Nut oder Seilrille 26 auf, welche zur Führung der mit den Platinen verbundenen ersten Strupfe 6 vorgesehen ist.According to the sectional view in FIG. 3 the outer ring 23 of the bearing 21 is first connected to a first pulley 25, which is arranged on the peripheral surface of the outer ring 23 and thus rotates with this. At its end face facing towards the outside, this pulley has a circumferential groove or rope groove 26, which is provided for guiding the first strut 6 connected to the sinkers.

Der Innenring 22 des Lagers 21 ist - wie bereits erwähnt - ebenfalls drehbar gelagert, und mit einer zweiten Seilrolle 30 verbunden. Genau genommen ist der Innenring 22 mit zwei zweiten Seilrollen 301 und 302 verbunden, was Vorteile im Hinblick auf eine gleichmäßige Lastverteilung mit sich bringt. Insbesondere kann aufgrund der symmetrischen Anordnung das Auftreten eines Schiefzugs vermieden werden.The inner ring 22 of the bearing 21 is - as already mentioned - also rotatably mounted, and connected to a second pulley 30. Strictly speaking, the inner ring 22 is connected to two second pulleys 30 1 and 30 2 , which brings advantages in terms of a uniform load distribution with it. In particular, the occurrence of a Schiefzugs can be avoided due to the symmetrical arrangement.

Die beiden zweiten Seilrollen 301 und 302 sind also - im Querschnitt gesehen - winkelartig ausgestaltet und weisen zur Außenseite des Lagers 21 hin weisende Stirnflächen auf, die wiederum jeweils mit einer Nut bzw. Seilrille 311 bzw. 312 versehen sind. Wie der perspektivischen Darstellung in Figur 2 entnommen werden kann, ist die untere Strupfe 8 als Doppelstrupfe mit parallel zueinander verlaufenden Litzen 81 bzw. 82 ausgebildet, was den bereits zuvor genannten Vorteil mit sich bringt, dass aufgrund einer symmetrischen Zugverteilung kein Schiefzug auftritt. Die Doppelstrupfe 8 muss in diesem Fall auf einer Seite des erfindungsgemäßen Rollenzug-Elements 20 eingeschlauft werden und wird dann mit ihrem Schlingenende 8a mit einem Halteteil 50 verhakt, welches zur Befestigung an dem Strupfenboden 9 dient. Das andere Ende 8b der Strupfe 8 hingegen ist mit einem Befestigungshaken 51 verbunden, der zum Einhängen einer Harnischschnur vorgesehen ist. Vorzugsweise ist die Doppelstrupfe 8 als Endlosschnur ausgestaltet, was im Hinblick auf die Lagerung bzw. die Führung der Strupfe 8 sowie beim Einhängen und Verbinden derselben mit dem Halteteil 50 und dem Befestigungshaken 51 Vorteile mit sich bringt.The two second pulleys 30 1 and 30 2 are thus - seen in cross-section - angularly configured and have the outside of the bearing 21 facing end surfaces, which in turn are each provided with a groove or rope groove 31 1 and 31 2 . As the perspective view in FIG. 2 can be removed, the lower strut 8 is formed as a double strut with parallel strands 8 1 and 8 2 , which the already mentioned advantage with it brings that due to a symmetrical Zugverteilung no Schiefzug occurs. In this case, the double strut 8 has to be looped in on one side of the reel tensioning element 20 according to the invention and is then hooked with its loop end 8a to a holding part 50 which serves for fastening to the strut bottom 9. The other end 8b of the strands 8, however, is connected to a fastening hook 51, which is provided for hanging a harness cord. Preferably, the double strut 8 is designed as an endless cord, which brings in terms of the storage and the leadership of the strands 8 and when hanging and connecting the same with the holding part 50 and the fastening hook 51 advantages.

Wesentliches Merkmal der erfindungsgemäßen Ausgestaltung ist, dass beide Ringe 22 bzw. 23 des Lagers 21 unabhängig voneinander drehbar sind, was demzufolge auch für die Seilrollen 25 bzw. 30 gilt. Wie bei einem klassischen Rollenzug-Element können somit die beiden Strupfen 6 und 8 unabhängig voneinander über das Rollenzug-Element 20 geführt werden.An essential feature of the embodiment according to the invention is that both rings 22 and 23 of the bearing 21 are rotatable independently of each other, which therefore also applies to the pulleys 25 and 30, respectively. As with a classic pulley element, the two struts 6 and 8 can thus be guided independently of each other via the pulley element 20.

Wie ferner der Schnittdarstellung in Figur 3 entnommen werden kann, sind die der ersten Seilrolle 25 zugewandten Innenflächen der beiden Seilrollen 301, 302 in etwa komplementär zu den Außenflächen der ersten Seilrolle 25 ausgebildet. Hierdurch ergibt sich also ein sehr schmaler Spalt 28 zwischen den Seilrollen 25 und 30, der gleichzeitig auch ein Labyrinth für das Kugellager 21 bildet. Weitere Dichtungsmaßnahmen für das Lager 21 sind dementsprechend nicht unbedingt erforderlich.As further shown in the sectional view in FIG. 3 can be removed, the first pulley 25 facing inner surfaces of the two pulleys 30 1 , 30 2 are formed approximately complementary to the outer surfaces of the first pulley 25. This results in a very narrow gap 28 between the pulleys 25 and 30, which also forms a labyrinth for the ball bearing 21 at the same time. Further sealing measures for the bearing 21 are accordingly not necessarily required.

Um die Führung der Strupfen 6, 8 in den Seilrillen 26, 311 und 312 zu verbessern, ist vorgesehen, dass das Lager 21 mit den Seilrollen 25, 30 in einem Gehäuse 35 gelagert bzw. gedeckelt ist. Die Lagerung erfolgt insbesondere schwimmend, um die freie Drehbarkeit beider Lagerringe 22, 23 zu gewährleisten. Hierzu ist das Gehäuse 35 zweiteilig ausgestaltet, wobei die beiden Gehäuseteile 36 und 37 in einfacher Weise miteinander verrastet werden können. Eine angeschrägte Teilfuge des Gehäuses 35 dient hierbei als Einführhilfe.In order to improve the guidance of the straps 6, 8 in the rope grooves 26, 31 1 and 31 2 , it is provided that the bearing 21 is mounted or capped with the rope pulleys 25, 30 in a housing 35. The storage takes place in particular floating, to ensure the free rotation of both bearing rings 22, 23. For this purpose, the housing 35 is designed in two parts, wherein the two housing parts 36 and 37 can be locked together in a simple manner. A beveled parting line of the housing 35 serves as an insertion aid.

Eine weitere Aufgabe des Gehäuses 35 besteht ferner auch darin, einen Schutz gegen Verschmutzungen zu bieten und eine sichere Abweisung der nebeneinander angeordneten Rollenzug-Elemente beim Passieren der Fachgleichstellung der Jacquardmaschine zu gewährleisten. Zweckmäßigerweise wird zuerst die mittlere oder Einzelstrupfe 6 eingehängt, anschließend kann die Doppelstrupfe 8 ungehindert in ihre eigenen Seilrollen 301, 302 gleiten.A further object of the housing 35 is also to provide protection against contamination and to ensure a safe rejection of juxtaposed roller tension elements when passing the compartment equalization of the jacquard machine. Conveniently, the middle or individual strut 6 is first hung, then the double strut 8 can slide freely in their own pulleys 30 1 , 30 2 .

Eine besondere Weiterbildung des vorzugsweise aus Kunststoff bestehenden Gehäuses 35 könnte auch darin bestehen, dieses entsprechend der zugehörigen Musterstelle des Webstuhls optisch zu markieren. Beispielsweise könnte durch eine besondere farbliche Gestaltung des Gehäuses 35 der funktionale Zusammenhang der verschiedenen Rollenzug-Elemente im Hinblick auf das Webmuster gekennzeichnet werden. Bei erforderlichen Wartungsarbeiten wird hierdurch das Auffinden des gesuchten Rollenzug-Elements 20 deutlich erleichtert, was insbesondere unter Berücksichtigung der hohen Anzahl der in einem Webstuhl zum Einsatz kommenden Rollenzug-Elemente von besonderer Bedeutung ist.A particular development of the preferably made of plastic housing 35 could also be to optically mark this according to the associated sample point of the loom. For example, by a special color scheme of the housing 35, the functional relationship of the various pulley elements could be characterized with respect to the weave pattern. In the case of required maintenance work, this makes it much easier to find the desired roll-pull element 20, which is of particular importance in view of the large number of roll-pull elements used in a loom.

Anzumerken ist, dass es selbstverständlich auch möglich wäre, die obere, also die mit den Platinen verbundene Strupfe 6 als Doppelstrupfe auszugestalten. Welche der beiden Strupfen 6, 8 als Doppelstrupfe ausgebildet ist, kann letztendlich frei nach den Präferenzen des Konstrukteurs bzw. unter Berücksichtigung der weiteren Komponenten des Webstuhls entschieden werden.It should be noted that it would of course also be possible to design the upper strands 6, that is to say the strands 6 connected to the blanks, as double struts. Which of the two struts 6, 8 is designed as a double strut, can ultimately be decided freely according to the preferences of the designer or taking into account the other components of the loom.

Insgesamt wird somit ein Rollenzug-Element geschaffen, welches im Hinblick auf die Anzahl der verwendeten Bauteile, sein Gewicht, sowie die Herstellungs- und Materialkosten deutliche Vorteile im Vergleich zu bekannten Rollenzug-Elementen mit sich bringt. Die einfache Bauweise führt ferner auch dazu, dass technische Probleme weiter reduziert und dementsprechend die erzielbaren Standzeiten deutlich erhöht werden können.Overall, a roller pull element is thus created, which in terms of the number of components used, its weight, as well as the manufacturing and material costs brings significant advantages compared to known pulley elements with it. The simple design also leads to the fact that technical problems further reduced and accordingly the achievable service life can be significantly increased.

Claims (14)

  1. Fulley block element (20) for the use in a Jacquard machine (1), having
    at least one first pulley (25) for guiding a first slip-knot (6) and
    at least one second pulley (30) for guiding a second slip-knot (8),
    wherein one of the two slip-knots (6, 8) is connected with at least one hook (4, 5) of a Jacquard machine (1) and the other slip-knot (8) is connected with at least one harness cord (10) for lifting a warp thread (14) and
    wherein the first and the second pulleys (25, 30) are rotatable independently of one another,
    characterised in that,
    the pulley block element (20) has a bearing (21) comprised of an inner ring (22) and an outer ring (23), wherein the inner ring (22) and the outer ring (23) of the bearing (21) are rotatable independently of one another and
    wherein one of the two pulleys (25, 30) is connected with the inner ring (22) and the other pulley (25, 30) is connected with the outer ring (23) of the bearing (21).
  2. Pulley block element according to claim 1, characterised in that, one of the two slip-knots (6, 8) in constituted as a double slip-knot (81, 82), wherein the inner ring (22) of the bearing (21) is connected with two second pulleys (301, 302) which are arranged to the two sides of the first pulley (25).
  3. Pulley block element according to claim 2, characterised in that, the two second pulleys (301, 302) are in cross-section formed approximately angled and at the face towards the outside of the bearing (21) have in each case a cord groove (311, 312) for guiding the slip-knot (8).
  4. Pulley block element according to claim 2 or 3, characterised in that, the inner surfaces of the two second pulleys (301, 302) towards the first pulley (25) are constituted approximately complementarity to the outer surfaces of the first pulley (25).
  5. Pulley block element according to any of claims 2 to 4, characterised in that, the double slip-knot (81, 82) is constituted as an endless cord.
  6. Pulley block element according to any preceding claim, characterised in that, the bearing (21) is arranged with the pulleys (25, 30) in a housing (35).
  7. Pulley block element according to claim 6, characterised in that, the bearing (21) is arranged with the pulleys (25, 30) in a floating manner within the housing (35).
  8. Pullet block element according to claim 6 or 7, characterised in that, the housing (35) is constituted in two parts.
  9. Pulley block element according to claim 8, characterised in that, the two housing parts (36, 37) are latchable with one another.
  10. Pulley block element according to any of claims 6 to 9, characterised in that, the housing (35) has a visual or colour design.
  11. Pulley block element according to claim 10, characterised in that, the visual design of the pulley block element (20) designates the associated pattern disposition.
  12. Pulley block element according to any of claims 6 to 11, characterised in that, the housing (35) is of plastic.
  13. Pulley block element according to any preceding claim, characterised in that, the bearing (21) is a ball bearing.
  14. Pulley block element according to any of claims 1 to 12, characterised in that, the bearing (21) is formed by a sliding bearing.
EP06707312A 2005-02-28 2006-02-27 Pulley element for a jacquard machine Not-in-force EP1853757B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005008998A DE102005008998B4 (en) 2005-02-28 2005-02-28 Role pull element for jacquard machine
PCT/EP2006/001803 WO2006092260A1 (en) 2005-02-28 2006-02-27 Tractive pulley element for a jacquard machine

Publications (2)

Publication Number Publication Date
EP1853757A1 EP1853757A1 (en) 2007-11-14
EP1853757B1 true EP1853757B1 (en) 2010-10-13

Family

ID=36250856

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06707312A Not-in-force EP1853757B1 (en) 2005-02-28 2006-02-27 Pulley element for a jacquard machine

Country Status (8)

Country Link
EP (1) EP1853757B1 (en)
KR (1) KR20070107134A (en)
CN (1) CN101160422B (en)
AT (1) ATE484621T1 (en)
BR (1) BRPI0608133B1 (en)
DE (2) DE102005008998B4 (en)
HK (1) HK1119211A1 (en)
WO (1) WO2006092260A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1020551A3 (en) * 2012-03-01 2013-12-03 Wiele Michel Van De Nv DEVICE FOR DETACHABLE CONNECTION OF ELEMENTS FOR POSITIONING NECKLACE YARN ON A WEAVING MACHINE.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT217387B (en) * 1959-05-15 1961-09-25 Rueti Ag Maschf Double roller element for jacquard machines
FR2586431B1 (en) * 1985-08-23 1987-11-13 Staubli Verdol BEARING FOR CROWD-FORMING DEVICE IN WEAVING MATERIAL
DE3713832C1 (en) * 1987-04-24 1988-06-23 Grosse Webereimaschinen Gmbh Circuit board control device for open compartment jacquard machine
FR2669649B1 (en) * 1990-11-27 1993-01-29 Staubli Verdol IMPROVEMENTS IN MITTENS, ESPECIALLY USED IN ARMOR MECHANICS.
IT1250280B (en) * 1991-08-06 1995-04-07 Skf Ind Spa TENSIONER DEVICE WITH ROLLING BEARINGS
BE1005823A3 (en) * 1992-05-19 1994-02-08 Wiele Michel Van De Nv HOISTING EQUIPMENT FOR JACQUARD MACHINE.
GB9400635D0 (en) * 1994-01-13 1994-03-09 Bnl Ltd Improvements relating to supporting carcasses for rollers
EP0807702A1 (en) * 1996-05-15 1997-11-19 Sulzer RàœTi Ag Device for fastening a body and dobby with such device
BE1015098A5 (en) * 2002-09-09 2004-10-05 Wiele Michel Van De Nv Shed-forming device for a weaving machine.

Also Published As

Publication number Publication date
KR20070107134A (en) 2007-11-06
EP1853757A1 (en) 2007-11-14
DE502006008076D1 (en) 2010-11-25
ATE484621T1 (en) 2010-10-15
CN101160422A (en) 2008-04-09
DE102005008998A1 (en) 2006-08-31
DE102005008998B4 (en) 2013-11-07
BRPI0608133B1 (en) 2015-12-01
BRPI0608133A2 (en) 2009-11-17
CN101160422B (en) 2010-12-15
HK1119211A1 (en) 2009-02-27
WO2006092260A1 (en) 2006-09-08

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