EP0707103B1 - Warp tensioning device on a loom - Google Patents

Warp tensioning device on a loom Download PDF

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Publication number
EP0707103B1
EP0707103B1 EP95110332A EP95110332A EP0707103B1 EP 0707103 B1 EP0707103 B1 EP 0707103B1 EP 95110332 A EP95110332 A EP 95110332A EP 95110332 A EP95110332 A EP 95110332A EP 0707103 B1 EP0707103 B1 EP 0707103B1
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EP
European Patent Office
Prior art keywords
warp
roll
tensioning unit
carrier
unit according
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
Application number
EP95110332A
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German (de)
French (fr)
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EP0707103A2 (en
EP0707103A3 (en
Inventor
Horst Dipl.-Ing. FH Häussler
Wilhelm Dipl.-Ing. Fh Herrlein
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Lindauer Dornier GmbH
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Lindauer Dornier GmbH
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Publication date
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Publication of EP0707103A2 publication Critical patent/EP0707103A2/en
Publication of EP0707103A3 publication Critical patent/EP0707103A3/en
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Publication of EP0707103B1 publication Critical patent/EP0707103B1/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/12—Controlling warp tension by means other than let-off mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/04—Control of the tension in warp or cloth
    • D03D49/12—Controlling warp tension by means other than let-off mechanisms
    • D03D49/14—Compensating for tension differences during shedding

Definitions

  • the invention relates to a tensioning unit for the warp in a loom, the loom being a first outer and has second outer side cheek, with warp beam side over functional elements that reach the weaving width, such as a coating roller, a support boom connected to the coating roller, the is under the action of a spring element, a deflecting roller and a carrier element with a plurality of end shields, in which the support tree is rotatably received, and also consisting of several arranged along the length of the supporting tree Support elements for the match tree.
  • a device for tensioning a warp on a weaving machine is known from European patent specification 0 109 472 B1.
  • the object underlying the known invention consists, among other things, of meeting the demands for weaving at high warp tensions, for constant warp tension during weaving of the warp beam and for the lowest possible inertia of the tensioning element which tension the warp during its periodic oscillating movements.
  • This task is solved by a facility consisting of a spring-like rod-like tensioning element and consists of a support tree on which the clamping element on the Weave width is supported several times, and around its central axis the clamping element is pivotally arranged.
  • the tensioning element should be rigid with the support boom act connected and not resilient clamping element.
  • the known solution meets the aforementioned requirements in that the supporting beam is supported together with a deflecting beam for the warp threads between the warp beam and the tensioning element in several bearing plates connected below the weaving plane with a machine-fixed support.
  • Such a support enables the tensioning element as well as the supporting tree and the deflecting tree to be designed with relatively small cross-sectional dimensions and consequently with low mass.
  • a disadvantage of this solution is that the tensioning element is inevitably in fixed connection with the supporting tree via corresponding connecting pieces. Such a design is costly with regard to the manufacturing process of the support tree tensioning element connection.
  • a device for tensioning the warp is also known from European patent application 0 409 306 A1.
  • the object of the solution according to the invention here is to provide a device for tensioning the warp which is suitable for periodically influencing the tension of the warp as a function of the warp tension present during the change of subject and the sling of the sheet.
  • the object is achieved in that the back rest is received between two supports arranged inside the weaving machine, and each support is mounted on a support arm running below the weaving plane, which in turn has one free end on a second but pivotably mounted arm is articulated.
  • the other free end of the support arm is operatively connected to an eccentric shaft of a gear means.
  • the warp should be periodically tensioned and relieved by means of an eccentric stroke applied periodically by the gear means.
  • the aforementioned technical solution is not based on one Particularly low-mass tensioning unit for warp tensioning under Training inclusion roller and guide roller.
  • EP 0 231 726 A1 also discloses a weaving machine according to the preamble of claim 1 with a carrying and adjusting device for the warp guide.
  • the warp guide here includes, for example, a warp thread tensioner, the deflecting element for the warp threads and a warp thread monitor.
  • the known invention has for its object to provide means for quick, easy and exact adjustment of the carrying and adjusting device. This object is achieved in that the carrying and adjusting device is mounted on a rotatable and ascertainable supporting element in the weaving machine frame, which is adjustable and fixable relative to the weaving machine frame.
  • This invention is also not aimed at creating a tensioning unit for the warp in which both the coating roller and the deflection roller can be designed with low mass and in which the tensioning unit can be adjusted separately and relative to the side cheeks of the weaving machine.
  • the object of the application according to the invention is to provide a clamping unit for the To create a warp that is connected to the corresponding connectors between the Support tree and the tensioning element dispensed with and the disadvantages avoids the known clamping units.
  • An essential feature is that the coating roller is not firmly connected to the support tree, but is loosely received in several bearings arranged over the longitudinal extent of the support tree and that the deflection roller is loosely supported in support bearings, which are supported in separate end shields by the support tree receiving end shields are separated, are included.
  • the arrangement and design of the bearings which are preferably provided as two-point roller bearings both for the coating roller and for the deflection roller, leads to a further reduction in the cross sections of the coating roller, support beam and deflection roller in comparison with the prior art.
  • the solution according to the invention leads in a special way to the fact that no relative movement takes place between the warp threads and the match tree on the one hand and the deflecting tree on the other hand.
  • the invention makes it possible, if necessary, to replace one coating roller or one deflection boom with another coating roller or another deflection boom within a very short time, which is not possible for the rollers in question in the case of plain bearings.
  • FIG. 1 seen in the weaving direction, see directional arrow 1, the left-hand outer side cheek 2 of the weaving machine is indicated.
  • a component 3 is connected to the side cheek 2 in a known manner in a height-adjustable manner.
  • the height-adjustable component 3 as shown in FIG. 2, is equipped with a longitudinal guide 3A and elongated holes 3B, into which appropriately designed, but not shown, means are used which connect the component 4 to the component 3 via the elongated holes 4A and 4B.
  • the component 4 is thereby adjustable in the direction of the double arrow 5.
  • the component 4 has a cylindrical receptacle 6, in which the clamping unit 7 is carried with its rotationally symmetrical support element 8.
  • the entire clamping unit 7 is supported so as to be adjustable about the central axis 8A of the carrier element 8 and can be locked therein by means of the screws 9.
  • On each component 4 is also a in the weaving direction according to the bolts 10.
  • Arrow 1 directed carrier 11 is present, to which a first articulation point 11a for a tensioning element 12, for example a tension spring, is provided.
  • Another articulation point 13 of the clamping element 12 is with the free end of a one-armed lever 14 connected to rotate attacks on the support tree 15.
  • a plurality of end shields 16, 16A On the one reaching from one weaving machine side to the other Carrier element 8 are a plurality of end shields 16, 16A, at least however, a first outer and a second outer End shield 16 and 16A arranged.
  • All end shields 16, 16A lie in a common plane.
  • the end shields 16 take the support tree 15 in a warehouse rotatable on. It proves to be particularly advantageous in With regard to the low-mass design of the clamping unit 7, a Three-point roller bearing with support rollers 17.
  • the two-point roller bearing is formed here by two legs 18A and 18B of the support element 18 of different lengths, which are directed towards the warp 24 and each leg 18a, 18b, at its free end, the axis of rotation 19 or 20 for the roller 21 or 22 bears.
  • the roller roller 23 designed as a tube is received between two rollers 21, 22 of each support element 18 and the warp 24.
  • the deflecting roller 25 is loosely carried in the support bearing 27 of the separate end shields 16A between the coating roller 23 and the warp beam 26, which is indicated by a dash-dot line.
  • the support bearings 27 can be designed as a two-point roller bearing with the rollers 28, 29.
  • the one-armed lever 14 preferably rotatably engages the rotatably mounted support tree 15 symmetrically, namely at each of its free ends.
  • the free end of each lever 14 is connected to the other articulation point 13 of the tensioning element 12, which acts as a tension spring.
  • the force flow of the tensioning force applied by the tensioning element 12 therefore runs from the spring element 12 via the lever 14 to the support beam 15 with the support elements 18 to the coating roller 23 and from there onto the warp 24th This ensures that the weaving warp 24 can always be kept under a constant warp tension over the weaving width when using the tensioning unit 7 according to the invention.

Description

Die Erfindung betrifft eine Spanneinheit für die Webkette in einer Webmaschine, wobei die Webmaschine eine erste äußere und zweite äußere Seitenwange aufweist, mit kettbaumseitigen über die Webbreite reichenden Funktionselementen, wie eine Streichwalze, einen mit der Streichwalze verbundenen Tragbaum, der unter der Wirkung eines Federelementes steht, eine Umlenkwalze und einem Trägerelement mit mehreren Lagerschilden, in denen der Tragbaum drehbeweglich aufgenommen ist, und ferner bestehend aus mehreren über die Länge des Tragbaumes angeordneten Stützelementen für den Streichbaum.The invention relates to a tensioning unit for the warp in a loom, the loom being a first outer and has second outer side cheek, with warp beam side over functional elements that reach the weaving width, such as a coating roller, a support boom connected to the coating roller, the is under the action of a spring element, a deflecting roller and a carrier element with a plurality of end shields, in which the support tree is rotatably received, and also consisting of several arranged along the length of the supporting tree Support elements for the match tree.

Aus der europäischen Patentschrift 0 109 472 B1 ist eine Einrichtung zum Spannen einer Webkette an einer Webmaschine bekannt.
Die der bekannten Erfindung zugrundliegende Aufgabe besteht unter anderem darin, den Forderungen nach Weben bei hohen Kettspannungen, nach konstanter Kettspannung während des Abwebens des Kettbaumes und nach möglichst geringer Trägheit des die Webkette spannenden Spannelementes bei seinen periodischen Schwingbewegungen nachzukommen.A device for tensioning a warp on a weaving machine is known from European patent specification 0 109 472 B1.
The object underlying the known invention consists, among other things, of meeting the demands for weaving at high warp tensions, for constant warp tension during weaving of the warp beam and for the lowest possible inertia of the tensioning element which tension the warp during its periodic oscillating movements.

Gelöst wird diese Aufgabe durch eine Einrichtung, die aus einem unter Federwirkung stehenden stangenartigen Spannelement und aus einem Tragbaum besteht, auf den das Spannelement über die Webbreite mehrfach abgestützt ist, und um dessen Mittenachse das Spannelement schwenkbar angeordnet ist.This task is solved by a facility consisting of a spring-like rod-like tensioning element and consists of a support tree on which the clamping element on the Weave width is supported several times, and around its central axis the clamping element is pivotally arranged.

Bei dem Spannelement soll es sich um ein starr mit dem Tragbaum verbundenes und in sich nicht federndes Spannelement handeln. The tensioning element should be rigid with the support boom act connected and not resilient clamping element.

Den vorgenannten Forderungen wird die bekannte Lösung dadurch gerecht, daß der Tragbaum gemeinsam mit einem Umlenkbaum für die Kettfäden zwischen Kettbaum und Spannelement in mehreren unterhalb der Webebene mit einem maschinenfesten Träger verbundenen Lagerschilden abgestützt ist.
Eine derartige Abstützung ermöglicht, daß sowohl das Spannelement als auch der Tragbaum und der Umlenkbaum mit verhätlnismäßig geringen Querschnittsdimensionen und demzufolge massearm ausgebildet werden können.
Nachteilig bei dieser Lösung ist dennoch, daß das Spannelement zwangsläufig über entsprechende Verbindungsstücke in fester Verbindung mit dem Tragbaum steht.
Eine derartige Ausbildung ist kostenaufwendig im Hinblick auf den Herstellungsprozeß der Tragbaum-Spannelement-Verbindung.The known solution meets the aforementioned requirements in that the supporting beam is supported together with a deflecting beam for the warp threads between the warp beam and the tensioning element in several bearing plates connected below the weaving plane with a machine-fixed support.
Such a support enables the tensioning element as well as the supporting tree and the deflecting tree to be designed with relatively small cross-sectional dimensions and consequently with low mass.
However, a disadvantage of this solution is that the tensioning element is inevitably in fixed connection with the supporting tree via corresponding connecting pieces.
Such a design is costly with regard to the manufacturing process of the support tree tensioning element connection.

Eine Einrichtung zum Spannen der Webkette ist ferner aus der europäischen Patentanmeldung 0 409 306 A1 bekannt.
Die Aufgabe der erfindungsgemäßen Lösung besteht hier darin, eine Vorrichtung zum Spannen der Webkette zu schaffen, die geeignet ist, in Abhängigkeit von der während des Fachwechsels und des Blattangschlags vorliegenden Kettspanung periodisch auf die Spannung der Webkette Einfluß zu nehmen.A device for tensioning the warp is also known from European patent application 0 409 306 A1.
The object of the solution according to the invention here is to provide a device for tensioning the warp which is suitable for periodically influencing the tension of the warp as a function of the warp tension present during the change of subject and the sling of the sheet.

Gelöst wird die Aufgabe dadurch, daß der Streichbaum (back rest) zwischen zwei innerhlab der Webmaschine angeordneten Stützen aufgenommen ist, und jede Stütze auf einem unterhalb der Webebene verlaufenden Tragarm montiert ist, der seinerseits mit dem einen freien Ende an einem zweiten jedoch schwenkbar gelagerten Arm angelenkt ist. Das andere freie Ende des Tragarmes steht mit einer Exzenterwelle eines getrieblichem Mittels in Wirkverbindung.
Mittels eines periodisch von dem getrieblichen Mittel aufgebrachten Exzenterhubes soll die Webkette periodisch gespannt und entlastet werden. The object is achieved in that the back rest is received between two supports arranged inside the weaving machine, and each support is mounted on a support arm running below the weaving plane, which in turn has one free end on a second but pivotably mounted arm is articulated. The other free end of the support arm is operatively connected to an eccentric shaft of a gear means.
The warp should be periodically tensioned and relieved by means of an eccentric stroke applied periodically by the gear means.

Die vorgenannte technische Lösung stellt nicht darauf ab, eine besonders massearme Spanneinheit zur Webkettenspannung unter Einbeziehung von Streichwalze und Umlenkwalze auszubilden.The aforementioned technical solution is not based on one Particularly low-mass tensioning unit for warp tensioning under Training inclusion roller and guide roller.

Aus der EP 0 231 726 A1 ist darüber hinaus eine Webmaschine gemäß Oberbegriff des Anspruchs 1 mit einer Trag- und Verstellvorrichtung für die Webkettenführung bekannt.
Die Webkettenführung umfaßt hier z.B. einen Kettfadenspanner, das Umlenkelement für die Kettfäden und einen Kettfadenwächter.
Der bekannten Erfindung liegt die Aufgabe zugrunde, Mittel zum raschen, einfachen und exakten Einstellen der Trag- und Verstellvorrichtung anzugeben.
Gelöst wird diese Aufgabe dadurch, daß die Trag- und Verstellvorrichtung auf einem im Webmaschinenrahmen drehbaren und feststellbaren Tragelement montiert ist, das gegenüber dem Webmaschinenrahmen verstellbar und fixierbar ist.
Auch diese Erfindung ist nicht auf das Schaffen einer Spanneinheit für die Webkette gerichtet, in der sowohl die Streichwalze als auch die Umlenkwalze massearm ausgebildet sein kann und in der die Spanneinheit separat und relativ zu den Seitenwangen der Webmaschine einstellbar ist.EP 0 231 726 A1 also discloses a weaving machine according to the preamble of claim 1 with a carrying and adjusting device for the warp guide.
The warp guide here includes, for example, a warp thread tensioner, the deflecting element for the warp threads and a warp thread monitor.
The known invention has for its object to provide means for quick, easy and exact adjustment of the carrying and adjusting device.
This object is achieved in that the carrying and adjusting device is mounted on a rotatable and ascertainable supporting element in the weaving machine frame, which is adjustable and fixable relative to the weaving machine frame.
This invention is also not aimed at creating a tensioning unit for the warp in which both the coating roller and the deflection roller can be designed with low mass and in which the tensioning unit can be adjusted separately and relative to the side cheeks of the weaving machine.

Aufgabe der anmeldungsgemäßen Erfindung ist es, eine Spanneinheit für die Webkette zu schaffen, die auf entsprechende Verbindungsstücke zwischen dem Tragbaum und dem Spannelement verzichtet und die darüber hinaus die Nachteile der vorbekannten Spanneinheiten vermeidet.The object of the application according to the invention is to provide a clamping unit for the To create a warp that is connected to the corresponding connectors between the Support tree and the tensioning element dispensed with and the disadvantages avoids the known clamping units.

Diese Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale von Patentanspruch 1 gelöst.
Wesentliches Merkmal ist danach, daß die Streichwalze nicht fest mit dem Tragbaum verbunden ist, sondern lose in mehreren über die Längserstreckung des Tragbaumes angeordneten Lagern drehbeweglich aufgenommen ist und daß die Umlenkwalze in Stützlagern lose getragen ist, die in separaten Lagerschilden, welche von den den Tragbaum aufnehmenden Lagerschilden getrennt sind, aufgenommen sind.This object is achieved by the characterizing features of claim 1.
An essential feature is that the coating roller is not firmly connected to the support tree, but is loosely received in several bearings arranged over the longitudinal extent of the support tree and that the deflection roller is loosely supported in support bearings, which are supported in separate end shields by the support tree receiving end shields are separated, are included.

Die Anordnung und Ausbildung der Lager, die sowohl für die Streichwalze als auch für die Umlenkwalze vorzugsweise als Zwei-Punkt-Rollenlager vorgesehen sind, führt im Vergleich zum Stand der Technik zu einer weiteren Reduzierung der Querschnitte von Streichwalze, Tragbaum und Umlenkwalze.
Die erfindungsgemäße Lösung führt in besonderer Weise dazu, daß zwischen den Kettfäden und dem Streichbaum einerseits und dem Umlenkbaum andererseits keine Relativ-Bewegung stattfindet.
Ferner ermöglicht die Erfindung, im Bedarfsfall innerhalb kürzester Zeit die eine Streichwalze bzw. den einen Umlenkbaum gegen eine andere Streichwalze bzw. einen anderen Umlenkbaum auszutauschen, was bei einer Gleitlagerung für die betreffenden Walzen nicht möglich ist.The arrangement and design of the bearings, which are preferably provided as two-point roller bearings both for the coating roller and for the deflection roller, leads to a further reduction in the cross sections of the coating roller, support beam and deflection roller in comparison with the prior art.
The solution according to the invention leads in a special way to the fact that no relative movement takes place between the warp threads and the match tree on the one hand and the deflecting tree on the other hand.
Furthermore, the invention makes it possible, if necessary, to replace one coating roller or one deflection boom with another coating roller or another deflection boom within a very short time, which is not possible for the rollers in question in the case of plain bearings.

Die Erfindung wird nachfolgend anhand von Ausführungsbeispielen näher beschreiben. The invention is described below using exemplary embodiments describe in more detail.

In der Zeichnung zeigen:

Figur 1
die kettbaumseitige Spanneinheit in der Seitenansicht,
Figur 2
die kettbaumseitige Spanneinheit in perspektivischer Darstellung
Figur 3
die Spanneinheit in der Seitenansicht mit Rollenlagerung für die Umlenkwalze an den separaten Lagerschilden
The drawing shows:
Figure 1
the warp beam side tensioning unit in side view,
Figure 2
the warp beam side tensioning unit in perspective
Figure 3
the clamping unit in side view with roller bearings for the deflection roller on the separate end shields

In Figur 1 ist, in Webrichtung gesehen, siehe Richtungspfeil 1, die linksseitige äußere Seitenwange 2 der Webmaschine andeutungsweise dargestellt.
Mit der Seitenwange 2 ist in bekannter Weise ein Bauteil 3 höhenverstellbar verbunden. Das höhenverstellbare Bauteil 3 ist, wie Fig. 2 zeigt, mit einer Längsführung 3A und Langlöchern 3B ausgerüstet, in die entsprechend ausgbildete, jedoch nicht dargestellte Mittel eingesetzt sind, die das Bauteil 4 über die Langlöcher 4A und 4B mit dem Bauteil 3 verbinden. Das Bauteil 4 ist dadurch in Richtung des Doppelpfeils 5 verstellbar.
Das Bauteil 4 besitzt eine zylindrische Aufnahme 6, in welcher die Spanneinheit 7 mit ihrem rotations-symmetrischen Trägerlement 8 getragen ist.
Durch eine solche Aufnahme 6 ist die gesamte Spanneinheit 7 um die Mittenachse 8A des Trägerelementes 8 verstellbar getragen und mittels der Schrauben 9 darin arretierbar.
An jedem Bauteil 4 ist ferner über die Bolzen 10 ein in Webrichtung gem. Pfeil 1 gerichteter Träger 11 vorhanden, an den ein erster Anlenkpunkt 11a für ein Spannelement 12, z.B. eine Zugfeder, vorgesehen ist. In FIG. 1, seen in the weaving direction, see directional arrow 1, the left-hand outer side cheek 2 of the weaving machine is indicated.
A component 3 is connected to the side cheek 2 in a known manner in a height-adjustable manner. The height-adjustable component 3, as shown in FIG. 2, is equipped with a longitudinal guide 3A and elongated holes 3B, into which appropriately designed, but not shown, means are used which connect the component 4 to the component 3 via the elongated holes 4A and 4B. The component 4 is thereby adjustable in the direction of the double arrow 5.
The component 4 has a cylindrical receptacle 6, in which the clamping unit 7 is carried with its rotationally symmetrical support element 8.
By means of such a receptacle 6, the entire clamping unit 7 is supported so as to be adjustable about the central axis 8A of the carrier element 8 and can be locked therein by means of the screws 9.
On each component 4 is also a in the weaving direction according to the bolts 10. Arrow 1 directed carrier 11 is present, to which a first articulation point 11a for a tensioning element 12, for example a tension spring, is provided.

Ein anderer Anlenkpunkt 13 des Spannelementes 12 ist mit dem freien Ende eines einarmigen Hebels 14 verbunden, der drehfest an dem Tragbaum 15angreift.Another articulation point 13 of the clamping element 12 is with the free end of a one-armed lever 14 connected to rotate attacks on the support tree 15.

Es sei erwähnt, daß die Bauteil 2, 3, 4 in identischer Ausbildung und Anordnung auf der gegenüberliegenden Webmaschinenseite ein weiteres Mal vorhanden sind.It should be mentioned that the component 2, 3, 4 in identical Training and arrangement on the opposite Weaving machine page exist one more time.

An dem von der einen Webmaschinenseite zur anderen reichenden Trägerelement 8 sind mehrere Lagerschilde 16, 16A, wenigstens jedoch jeweils ein erstes äußeres und ein zweites äußeres Lagerschild 16 und 16A angeordnet.On the one reaching from one weaving machine side to the other Carrier element 8 are a plurality of end shields 16, 16A, at least however, a first outer and a second outer End shield 16 and 16A arranged.

Alle Lagerschilde 16, 16A liegen in einer gemeinsamen Ebene. Die Lagerschilde 16 nehmen den Tragbaum 15 in einem Lager drehbeweglich auf. Als besonders vorteilhaft erweist sich, im Hinblick auf die massearme Ausbildung der Spanneinheit 7, eine Drei-Punkt-Rollenlagerung mit Stützrollen 17.All end shields 16, 16A lie in a common plane. The end shields 16 take the support tree 15 in a warehouse rotatable on. It proves to be particularly advantageous in With regard to the low-mass design of the clamping unit 7, a Three-point roller bearing with support rollers 17.

Über die Längserstreckung des Tragbaumes 15 sind mehrere voneinander beabstandet angeordnete Stützelemente 18 mit dem Tragbaum 15 verbunden, von denen jedes Stützelement 18 ein Lager, vorzugsweise ein Zwei-Punkt-Rollenlager mit einer auf einer Drehachse 19, 20 gelagerten Rolle 21, 22 ausbildet, in denen die Streichwalze 23 als separates Bauteil lose aufgenommen ist.
Das Zwei-Punkt-Rollenlager wird hier durch zwei unterschiedlich lange Schenkel 18A und 18B des Stützelementes 18 gebildet, die zur Webkette 24 gerichtet sind und wobei jeder Schenkel 18a, 18b, an seinem freien Ende die Drehachse 19 bzw. 20 für die Rolle 21 bzw. 22 trägt.
Die als Rohr ausgebildete Streichwalze 23 ist zwischen zwei Rollen 21, 22 jedes Stützelementes 18 und der Webkette 24 aufgenommen. A plurality of supporting elements 18, which are arranged at a distance from one another, are connected to the supporting tree 15 via the longitudinal extension of the supporting tree 15, of which each supporting element 18 forms a bearing, preferably a two-point roller bearing with a roller 21, 22 mounted on an axis of rotation 19, 20 which the coating roller 23 is loosely received as a separate component.
The two-point roller bearing is formed here by two legs 18A and 18B of the support element 18 of different lengths, which are directed towards the warp 24 and each leg 18a, 18b, at its free end, the axis of rotation 19 or 20 for the roller 21 or 22 bears.
The roller roller 23 designed as a tube is received between two rollers 21, 22 of each support element 18 and the warp 24.

Die Umlenkwalze 25 ist zwischen der Streichwalze 23 und dem andeutungsweise durch eine Strich-Punkt-Linie dargestellten Kettbaum 26 in dem Stützlager 27 der separaten Lagerschilde 16A lose getragen.
Wie Fig. 3 zeigt, können die Stützlager 27 als ein Zwei-Punkt-Rollenlager mit den Rollen 28,29 ausgeildet sein.The deflecting roller 25 is loosely carried in the support bearing 27 of the separate end shields 16A between the coating roller 23 and the warp beam 26, which is indicated by a dash-dot line.
As FIG. 3 shows, the support bearings 27 can be designed as a two-point roller bearing with the rollers 28, 29.

Um auf die Webkette 24 eine bestimmte Vorspannung aufzubringen und diese konstant aufrechtzuerhalten, greift an dem drehbeweglich gelagerten Tragbaum 15 vorzugsweise symmetrisch und zwar an jedem seiner freien Enden der einarmige Hebel 14 drehfest an.
Das freie Ende jedes Hebels 14 steht mit dem anderen Anlenkpunkt 13 des Spannelementes 12, welches als Zugfeder wirksam ist, in Verbindung.In order to apply a specific pretension to the warp chain 24 and to maintain this constant, the one-armed lever 14 preferably rotatably engages the rotatably mounted support tree 15 symmetrically, namely at each of its free ends.
The free end of each lever 14 is connected to the other articulation point 13 of the tensioning element 12, which acts as a tension spring.

Der Kraftfluß der von dem Spannelement 12 aufgebrachten Spannkraft läuft demnach von dem Federlement 12 über den Hebel 14 auf den Tragbaum 15 mit den Stützelementen 18 zur Streichwalze 23 und von dieser auf die Webkette 24.
Damit ist gewährleistet, daß die Webkette 24 bei Anwendung der erfindungsgemäßen Spanneinheit 7 immer über die Webbreite unter einer konstanten Kettspannung gehalten werden kann. The force flow of the tensioning force applied by the tensioning element 12 therefore runs from the spring element 12 via the lever 14 to the support beam 15 with the support elements 18 to the coating roller 23 and from there onto the warp 24th
This ensures that the weaving warp 24 can always be kept under a constant warp tension over the weaving width when using the tensioning unit 7 according to the invention.

ZEICHNUNGS-LEGENDEDRAWING LEGEND

11
RichtungspfeilDirectional arrow
22nd
SeitenwangeSidewall
33rd
BauteilComponent
3A3A
LängsführungLongitudinal guidance
3B3B
LanglochLong hole
44th
BauteilComponent
4A4A
LanglochLong hole
4B4B
LanlochLanloch
55
DoppelpfeilDouble arrow
66
Aufnahmeadmission
77
SpanneinheitClamping unit
88th
TrägerelementCarrier element
8A8A
MittenachseCenter axis
99
Schraubescrew
1010th
Bolzenbolt
1111
Trägercarrier
11A11A
AnlenkpunktPivot point
1212th
Spannelement (Zugfeder)Tensioning element
1313
AnlenkpunktPivot point
1414
Hebellever
1515
TragbaumSupporting tree
1616
LagerschildEnd shield
16A16A
LagerschildEnd shield
1717th
StützrolleSupport roller
1818th
StützelementSupport element
18A18A
Schenkelleg
18B18B
Schenkelleg
1919th
DrehachseAxis of rotation
2020th
DrehachseAxis of rotation
2121
Rollerole
2222
Rollerole
2323
StreichwalzeDoctor roller
2424th
WebketteWarp
2525th
UmlenkwalzeDeflection roller
2626
KettbaumWarp beam
2727
StützlagerSupport bearing
2828
Rollerole
2929
Rollerole

Claims (6)

  1. Tensioning unit for the warp in a loom, the loom having a first outer and a second outer side wall (2), with functional elements, such as a back rest roll (23), which are arranged on the side where the warp beam is located and which extend over the cloth width, a carrier beam (15) which supports the back rest roll (23) and which is subject to the action of a spring element (12), a deflecting roll (25) and a carrier element (8) having a plurality of bearing plates (16, 16A), and also comprising a plurality of support elements (18) for the back rest roll (23) which are arranged over the length of the carrier beam (15) and which form bearings in which the back rest roll (23) is accommodated loosely as a separate component, the carrier element (8) being accommodated in the region of the side walls (2) in such a manner that it is rotationally adjustable about its longitudinal axis (8A), characterised in that the position of the carrier element (8), carried by components (3, 4) present on each side wall (2), can be changed in the horizontal and in the vertical plane, and the bearing plates (16, 16A) arranged on the carrier element (8) alternately form a bearing arrangement (17, 27), on the one hand for rotatably accommodating the carrier beam (15) and, on the other hand, for rotatably accommodating the deflecting roll (25).
  2. Tensioning unit according to claim 1, characterised in that the back rest roll (23) and the deflecting roll (25) are accommodated in bearings comprising rollers (21, 22 and 28, 29, respectively).
  3. Tensioning unit according to claim 1, characterised in that at least the deflecting roll (25) is accommodated in a plain bearing (27) of the bearing plates (16A).
  4. Tensioning unit according to claim 2, characterised in that the bearings comprise at least one two-point roller bearing.
  5. Tensioning unit according to claim 1, characterised in that the carrier beam (15) is carried by a three-point roller bearing (17) present on the bearing plates (16).
  6. Tensioning unit according to claim 1, characterised in that the carrier beam (15) is connected by means of at least one lever (14) present at one of its free ends to a spring element (12) producing pretension on the warp (24).
EP95110332A 1994-07-30 1995-07-03 Warp tensioning device on a loom Expired - Lifetime EP0707103B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4427126A DE4427126C2 (en) 1994-07-30 1994-07-30 Tensioning unit for the warp in a weaving machine
DE4427126 1994-07-30

Publications (3)

Publication Number Publication Date
EP0707103A2 EP0707103A2 (en) 1996-04-17
EP0707103A3 EP0707103A3 (en) 1996-07-24
EP0707103B1 true EP0707103B1 (en) 1998-11-25

Family

ID=6524598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95110332A Expired - Lifetime EP0707103B1 (en) 1994-07-30 1995-07-03 Warp tensioning device on a loom

Country Status (4)

Country Link
US (1) US5558132A (en)
EP (1) EP0707103B1 (en)
JP (1) JP2693408B2 (en)
DE (2) DE4427126C2 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19538121C1 (en) * 1995-10-13 1997-02-27 Dornier Gmbh Lindauer Warp tensioner useful for loom esp. for tension sensitive yarns
EP0812940A1 (en) * 1996-06-11 1997-12-17 Sulzer Rüti Ag Warp tensioning device and loom with such a device
DE19740309A1 (en) * 1997-09-13 1999-06-10 Dornier Gmbh Lindauer Method and device for adjusting a match tree and warp guard of a weaving machine to produce a specific shed geometry
EP0937796A1 (en) * 1998-02-18 1999-08-25 Sulzer Rüti Ag Warp threads tensioning device for a loom and loom with such a device
IT1304112B1 (en) * 1998-12-17 2001-03-07 Vamatex Nuova Spa PROGRESSIVE SUSPENSION WIRE HOLDER FOR WEAVING FRAME
WO2008092029A2 (en) 2007-01-24 2008-07-31 Access Scientific, Inc. Access device
US8105286B2 (en) 2007-04-18 2012-01-31 Access Scientific, Inc. Access device
JP2010524586A (en) 2007-04-18 2010-07-22 アクセス サイエンティフィック、インク． Approach device
US20110021994A1 (en) 2008-03-14 2011-01-27 Access Scientific, Inc. Access device
JP2009293151A (en) * 2008-06-05 2009-12-17 Tsudakoma Corp Tension roll-supporting mechanism of loom
EP2744557B1 (en) 2011-08-17 2021-11-10 Smiths Medical ASD, Inc. Access device with valve

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE650888C (en) * 1936-03-01 1937-10-06 Saechsische Webstuhlfabrik Negative, direct acting chain deflation control gear
BE795452A (en) * 1972-02-15 1973-05-29 Nissan Motor CHAIN WIRE TENSION CONTROL MECHANISM
CH615709A5 (en) * 1977-03-09 1980-02-15 Sulzer Ag
FR2432059A1 (en) * 1978-07-24 1980-02-22 Saurer Diederichs Sa DEVICE FOR AVOIDING DIFFERENCES FROM START-UP IN A WEAVING MACHINE
EP0109472B1 (en) * 1982-10-26 1986-09-10 GebràœDer Sulzer Aktiengesellschaft Warp tensioning device on a weaving loom
JPS5982450A (en) * 1982-11-04 1984-05-12 日産自動車株式会社 Apparatus for adjusting backrest position of loom
JPS6026849A (en) * 1983-07-25 1985-02-09 Shinpo Kogyo Kk Stepless friction speed change gear
EP0231726B1 (en) * 1986-01-13 1989-10-11 GebràœDer Sulzer Aktiengesellschaft Loom
CH681156A5 (en) * 1989-05-02 1993-01-29 Sulzer Ag
BE1004382A3 (en) * 1989-07-17 1992-11-10 Picanol Nv Device for moving the trail at looms.
JP2534202Y2 (en) * 1991-12-13 1997-04-30 株式会社豊田自動織機製作所 Warp tension detecting device in loom

Also Published As

Publication number Publication date
EP0707103A2 (en) 1996-04-17
US5558132A (en) 1996-09-24
JPH0849138A (en) 1996-02-20
JP2693408B2 (en) 1997-12-24
DE59504323D1 (en) 1999-01-07
EP0707103A3 (en) 1996-07-24
DE4427126C2 (en) 1998-09-17
DE4427126A1 (en) 1996-02-01

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