EP0215195A1 - Hydraulic propulsion device for a shuttle - Google Patents

Hydraulic propulsion device for a shuttle Download PDF

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Publication number
EP0215195A1
EP0215195A1 EP86107238A EP86107238A EP0215195A1 EP 0215195 A1 EP0215195 A1 EP 0215195A1 EP 86107238 A EP86107238 A EP 86107238A EP 86107238 A EP86107238 A EP 86107238A EP 0215195 A1 EP0215195 A1 EP 0215195A1
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EP
European Patent Office
Prior art keywords
control valve
piston
cylinder
hydraulic cylinder
piston rod
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Granted
Application number
EP86107238A
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German (de)
French (fr)
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EP0215195B1 (en
Inventor
Axel Hundertmark
Dieter Hambrock
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Emil Jager & Co KG GmbH
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Emil Jager & Co KG GmbH
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Publication of EP0215195A1 publication Critical patent/EP0215195A1/en
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Publication of EP0215195B1 publication Critical patent/EP0215195B1/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
    • D03D49/24—Mechanisms for inserting shuttle in shed
    • D03D49/42—Mechanisms for inserting shuttle in shed whereby the shuttle is propelled by liquid or gas pressure

Definitions

  • the invention relates to a hydraulically operated drive device for shooters according to the preamble of the main claim.
  • EP-PS 54 844 describes a hydraulically operated drive device for weaving shooters, in which the piston rod intended for the shooter tee is brought into different positions, namely an inner end position or riser position and an extended end position, via a control block with control valves connected to the hydraulic cylinder and positions between the end positions for the tee-off or the beginning of the acceptance position and the end of the braking.
  • DE-PS 34 06 137 a hydraulically operated drive device for shooters is also described, in which the positioning of the egg conventional piston in its desired starting position is further improved by a connecting line via a positioning valve to the tank and on the other hand with the interposition of a positioning cylinder to the hydraulic cylinder, wherein a piston is guided in the positioning cylinder, the piston rod of which is directed towards the piston of the hydraulic cylinder.
  • the piston rod is positioned much more precisely, in particular from the end of the braking position to the knock-off position.
  • the invention has for its object to improve the device described in the earlier patent DE-PS 34 06 137 to the extent that the impact speed can be increased while maintaining the advantages of the above device.
  • 1 denotes a hydraulic cylinder which contains a piston 5 with a piston rod 2.
  • the rodless side of the hydraulic cylinder 1 is denoted by A
  • the side of the hydraulic cylinder 1 having the piston rod 2 is denoted by B.
  • a control block (not shown in the drawing) connects to this hydraulic cylinder 1 via the control lines.
  • a pressure medium supply line P leads from a pressure accumulator 11 with the interposition of a control valve PA to the rodless cylinder space of the cylinder 1.
  • the cylinder chamber B has a pressure medium feed line P 1 and connects to a tank 10 with the interposition of the line 10, a control valve BT and a control valve TA.
  • the tank 10 is low compared to the entire hydraulic system a vent valve EL is connected to line 10.
  • the cylinder chamber A connects to the tank T via a line VLA with the interposition of the control valve TA and line 10.
  • a pressure medium line P 2 leads from the pressure medium line P with the interposition of the line VLA and the control valve TA and a shuttle valve WV to a positioning cylinder 6.
  • control valve PA and TA are connected to one another via the connecting line VLA, which also connects to the cylinder space A.
  • the positioning cylinder 6 connects, in which a piston 7 is guided, which can rest against the piston 5 of the hydraulic cylinder 1 with a piston rod 8.
  • the piston rod side of the piston 7 is acted upon by a compression spring 12.
  • the positioning cylinder 6 can be made smaller than the hydraulic cylinder 1.
  • the movement of the piston 7 in the direction of the hydraulic cylinder 1 is limited by a stop 9, which additionally ensures a certain position of the piston 7 and thus the piston rod 8 with the interposition of the compression spring 12.
  • the control valves PA, BT and TA are designed as hydraulic poppet valves, for example the illustration in FIG. 1 shows that the control valve PA for the line P is closed and the control valves BT and TA for the lines P 1 and VLA are open.
  • the control valves can be electrical or controlled hydraulically.
  • Fig. 1 shows the basic position, i.e. the control valve PA is closed and thus closed with respect to the pressure accumulator, the control valve BT is open, as is the control valve TA.
  • the weaving machine W rests on the face of the piston rod 2 and, like the piston rod 2, is in the position X.
  • the piston 7 is in a rest position and the piston rod 8 is not in contact with the piston 5.
  • pressure medium was led to the positioning cylinder 6 by closing the control valve TA via the pressure medium supply line P 2 and the shuttle valve WV and the piston rod 8 was brought into contact with the piston 5.
  • the control valve PA is still closed and the control valve BT is open.
  • Fig. 3 shows the striking position.
  • the control valve PA has opened and thus created a connection between the pressure accumulator 11 and the cylinder space A.
  • the piston 5 has moved from the position X to the position S and the oil displaced in the cylinder space B can flow to the tank via the open control valve BT and the control valve TA which acts as a flow valve in this position, the vent valve EL opening as soon as a suction of Air is required through the oil flowing in line 10 to the tank.
  • the positioning cylinder 6 is in the position according to FIG. 2, in which the compression spring 12 is compressed.
  • the piston 5 is retracted into the acceptance position X by the control valve BT being closed and pressure continuing to act on the piston 7 via the line P 2 , so that the piston rod 8 continues to hold its position.
  • the shuttle valve WV has switched to the other position.
  • pressure is added via line P 1 to cylinder space B.
  • the oil displaced from cylinder space A flows via line VLA and valve TA as well as line 10 to the tank, and here too the vent valve EL causes line 10 to be vented, see above that a quick drain of the oil is guaranteed.
  • the control valve BT has changed so that the cylinder 6 is no longer pressurized, but is opened by switching the shuttle valve WV, so that the compression spring 12 can guide the piston 7 into the end position shown in FIG. 5.
  • the weaver W has returned the piston 5 or the piston rod 2 from the position X to the position Y and this from the cylinder space A. Displaced oil can flow the control valve TA to the tank 10 via the line VLA.
  • control valve TA has closed again and pressure medium can act on the piston 7 and thereby guides the piston rod 2 from the Y position to the X position, i.e. the tee or basic position.
  • a shut-off valve 14 is switched into the pressure medium line P 2 , which prevents pressure from being added to the cylinder 6, but the control valve BT has closed, so that pressure medium is now led to the cylinder space B via the pressure medium line P 1 and thus the piston 5 in an end position and the piston rod 2 in the position Z, in which a so-called riser box change can be carried out, since the shooter W remains in the Y position.
  • the check valve 14 is now open and at the same time the control valve BT is opened and the valve TA is open.
  • the pressure medium is fed via line P 2 to the positioning piston 7, which guides the piston 5 into the position X and thus also moves the contactor W into the striking position X.
  • the oil to be displaced in cylinder chamber B flows through the valve BT, TA to the tank.
  • the oil required in room A is displaced or taken out of the positioning cylinder.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)

Abstract

1. Hydraulically operated apparatus for driving weaving shuttles having disposed on each side of the slay a double-acting hydraulic cylinder (1) in which there is displaceably disposed a piston (5), there being connected to each hydraulic cylinder (1) a control unit comprising control valves, wherein a control valve (PA) is situated in the pressure medium supply duct (P) leading to the cylinder chamber (A) which has no piston rod, a second control valve (TA) is disposed before a return flow tank (T), and a third control valve (BT) is provided, to which there is connected that cylinder chamber (B) of the hydraulic cylinder (1) which has the piston rod (2), and wherein a connecting duct (VLA) connects the control valve (PA, TA) to one another and to the cylinder chamber (A) having no piston rod, a third pressure medium supply duct (P2 ) is provided, which leads to that side (A) of the hydraulic cylinder (1) which has no piston rod, and a positioning cylinder (6) leads to the hydraulic cylinder (1), there being mounted in the positioning cylinder (6) a piston (7), of which the piston rod (8) is directed towards the piston (5) of the hydraulic cylinder (1), characterised in that there is provided in the duct (10) between the control valve (TA) and the tank (T) an air exhaust valve (EL) and the tank is situated at a low level in relation to the whole hydraulic duct system.

Description

Die Erfindung bezieht sich auf eine hydraulisch betriebene Antriebseinrichtung für Webschützen gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a hydraulically operated drive device for shooters according to the preamble of the main claim.

In der EP-PS 54 844 wird eine hydraulisch betriebene Antriebseinrichtung für Webschützen beschrieben, bei welcher über einen mit dem hydraulischen Zylinder verbundenen Steuerblock mit Steuerventilen die für den Schützenabschlag vorgesehene Kolbenstange in verschiedene Positionen gebracht wird, nämlich einer inneren Endstellung oder Steigkastenstellung und einer ausgefahrenen Endstellung sowie zwischen diesen Endstellungen vorgesehene Positionen für den Abschlag bzw. den Beginn der Annahmeposition und das Ende der Abbremsung.EP-PS 54 844 describes a hydraulically operated drive device for weaving shooters, in which the piston rod intended for the shooter tee is brought into different positions, namely an inner end position or riser position and an extended end position, via a control block with control valves connected to the hydraulic cylinder and positions between the end positions for the tee-off or the beginning of the acceptance position and the end of the braking.

In der DE-PS 34 06 137 wird ebenfalls eine hydraulisch betriebene Antriebseinrichtung für Webschützen beschrieben, bei welcher die Positionierung des eigentlichen Kolbens in seine gewünschte Ausgangsstellung noch verbessert wird, indem eine Verbindungsleitung über ein Positionierventil zum Tank führt und andererseits unter Zwischenschaltung eines Positionierzylinders an den Hydraulikzylinder anschließt, wobei in dem Positionierzylinder ein Kolben geführt ist, dessen Kolbenstange zum Kolben des Hydraulikzylinders gerichtet ist.In DE-PS 34 06 137 a hydraulically operated drive device for shooters is also described, in which the positioning of the egg conventional piston in its desired starting position is further improved by a connecting line via a positioning valve to the tank and on the other hand with the interposition of a positioning cylinder to the hydraulic cylinder, wherein a piston is guided in the positioning cylinder, the piston rod of which is directed towards the piston of the hydraulic cylinder.

Durch die Zwischenschaltung eines zusätzlichen Positionierzylinders zwischen den Hydraulikzylinder und ein mit dem Tank in Verbindung stehendes Positionierventil wird eine wesentlich genauere Positionierung der Kolbenstange, insbesondere vom Ende der Bremsstellung in die Abschlagstellung erreicht.By interposing an additional positioning cylinder between the hydraulic cylinder and a positioning valve connected to the tank, the piston rod is positioned much more precisely, in particular from the end of the braking position to the knock-off position.

Der Erfindung liegt die Aufgabe zugrunde, die in dem älteren Schutzrecht DE-PS 34 06 137 beschriebene Einrichtung noch dahingehend zu verbessern, daß unter Beibehaltung der Vorteile der vorbeschriebenen Einrichtung die Schlaggeschwindigkeit erhöht werden kann.The invention has for its object to improve the device described in the earlier patent DE-PS 34 06 137 to the extent that the impact speed can be increased while maintaining the advantages of the above device.

Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object on which the invention is based is achieved by the teaching of the main claim.

Durch die Anordnung des gegenüber dem Hydrauliksystem tieferliegenden Tanks und durch den Einbau eines Belüftungsventiles in die zwischen dem Steuerventil und dem Tank befindliche Leitung läuft diese Leitung selbsttätig leer und es werden im System kleine, zu bewegende ölmassen erreicht, die eine Erhöhung der Schlaggeschwindigkeit ermöglichen. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen erläutert.Due to the arrangement of the tank, which is lower than the hydraulic system, and the installation of a ventilation valve in the line between the control valve and the tank, this line runs empty automatically and small, moving oil masses are achieved in the system, which allow an increase in impact speed. Advantageous configurations are explained in the subclaims.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnungen beschrieben. Die Zeichnungen zeigen dabei in den

  • Fig. 1 verschiedene Schaltstellungen der Ventile bis 8 und die verschiedenen Stellungen der Kolbenstange.
An embodiment of the invention is described below with reference to the drawings. The drawings show in the
  • Fig. 1 different switching positions of the valves to 8 and the different positions of the piston rod.

Aus Obersichtlichkeitsgründen ist nur eine Seite der Anordnung und nur das freie Ende der Kolbenstange dargestellt, nicht aber die an dieses freie Ende der Kolbenstange anschließenden webtechniscen Hilfsmittel, wobei der Steuerblock für die Ventile nicht dargestellt ist, sondern nur die Steuerleitungen ST.For reasons of clarity, only one side of the arrangement and only the free end of the piston rod is shown, but not the weaving aids connected to this free end of the piston rod, the control block for the valves not being shown, but only the control lines ST.

In der Zeichnung ist mit 1 ein Hydraulikzylinder bezeichnet, der einen Kolben 5 mit einer Kolbenstange 2 enthält. Die kolbenstangenlose Seite des Hydraulikzylinders 1 ist mit A, die die Kolbenstange 2 aufweisende Seite des Hydraulikzylinders 1 mit B bezeichnet. An diesen Hydraulikzylinder 1 schließt über die Steuerleitungen ein in der Zeichnung nicht dargestellter Steuerblock an. Eine Druckmittelzuleitung P führt von einem Druckspeicher 11 unter Zwischenschaltung eines Steuerventiles PA an den kolbenstangenlosen Zylinderraum des Zylinders 1 an.In the drawing, 1 denotes a hydraulic cylinder which contains a piston 5 with a piston rod 2. The rodless side of the hydraulic cylinder 1 is denoted by A, the side of the hydraulic cylinder 1 having the piston rod 2 is denoted by B. A control block (not shown in the drawing) connects to this hydraulic cylinder 1 via the control lines. A pressure medium supply line P leads from a pressure accumulator 11 with the interposition of a control valve PA to the rodless cylinder space of the cylinder 1.

Der Zylinderraum B weist ein Druckmittelzuleitung P1 auf und schließt unter Zwischenschaltung der Leitung 10, eines Steuerventiles BT und eines Steuerventiles TA an einen Tank 10 an. Der Tank 10 ist dabei gegenüber dem gesamten Hydrauliksystem niedriggelegt und an die Leitung 10 ist ein Entlüftungsventil EL angeschlossen. Der Zylinderraum A schließt über eine Leitung VLA unter Zwischenschaltung des Steuerventiles TA sowie der Leitung 10 an den Tank T an.The cylinder chamber B has a pressure medium feed line P 1 and connects to a tank 10 with the interposition of the line 10, a control valve BT and a control valve TA. The tank 10 is low compared to the entire hydraulic system a vent valve EL is connected to line 10. The cylinder chamber A connects to the tank T via a line VLA with the interposition of the control valve TA and line 10.

Eine Druckmittelleitung P2 führt von der Druckmittelleitung P unter Zwischenschaltung der Leitung VLA und des SteuerVentiles TA sowie eines Wechselventiles WV an einen Positionierzylinder 6.A pressure medium line P 2 leads from the pressure medium line P with the interposition of the line VLA and the control valve TA and a shuttle valve WV to a positioning cylinder 6.

Die Steuerventil PA und TA sind untereinander über die Verbindungsleitung VLA verbunden, die auch an den Zylinderraum A anschließt.The control valve PA and TA are connected to one another via the connecting line VLA, which also connects to the cylinder space A.

An die der Kolbenstange 2 des Kolbens 5 abgewandte Seite des Hydraulikzylinders 1 schließt der Positionierzylinder 6 an, in dem ein Kolben 7 geführt ist, der mit einer Kolbenstange 8 an den Kolben 5 des Hydraulikzylinders 1 anliegen kann. Die Kolbenstangenseite des Kolbens 7 wird durch eine Druckfeder 12 beaufschlagt. Der Positionierzylinder 6 kann dabei kleiner als der Hydraulikzylinder 1 ausgebildet sein. Die Bewegung des Kolbens 7 in Richtung zum Hydraulikzylinder 1 wird durch einen Anschlag 9 begrenzt, der zusätzlich unter Zwischenschaltung der Druckfeder 12 eine bestimmte Stellung des Kolbens 7 und damit der Kolbenstange 8 sicherstellt.On the side of the hydraulic cylinder 1 facing away from the piston rod 2 of the piston 5, the positioning cylinder 6 connects, in which a piston 7 is guided, which can rest against the piston 5 of the hydraulic cylinder 1 with a piston rod 8. The piston rod side of the piston 7 is acted upon by a compression spring 12. The positioning cylinder 6 can be made smaller than the hydraulic cylinder 1. The movement of the piston 7 in the direction of the hydraulic cylinder 1 is limited by a stop 9, which additionally ensures a certain position of the piston 7 and thus the piston rod 8 with the interposition of the compression spring 12.

Die Steuerventile PA, BT und TA sind als hydraulische Sitzventile ausgebildet, wobei beispielsweise die Darstellung in Fig. 1 zeigt, daß das Steuerventil PA für die Leitung P geschlossen und die Steuerventile BT und TA für die Leitungen P1 und VLA geöffnet sind. Die Steuerventile können elektrisch oder hydraulisch gesteuert werden.The control valves PA, BT and TA are designed as hydraulic poppet valves, for example the illustration in FIG. 1 shows that the control valve PA for the line P is closed and the control valves BT and TA for the lines P 1 and VLA are open. The control valves can be electrical or controlled hydraulically.

Weiterhin sind in der Zeichnung schematisch die verschiedenen Stellungen des Endes der Kolbenstange 2 eingezeichnet. Bei diesen Stellungen bedeutet:

  • W = Webschützen
  • S = ausgefahrene Endstellung der Kolbenstange 2
  • X = Abschlagstelle der Kolbenstange 2 und gleichzeitig:
  • X = Beginn der Annahmeposition
  • Y = Ende der Bremsstellung
  • Z = innere Endstellung oder Steigkastenwechselstellung.
Furthermore, the various positions of the end of the piston rod 2 are shown schematically in the drawing. With these positions means:
  • W = web shooter
  • S = extended end position of the piston rod 2
  • X = knock-off point of piston rod 2 and at the same time:
  • X = start of the acceptance position
  • Y = end of braking position
  • Z = inner end position or riser change position.

Fig. 1 zeigt die Grundstellung, d.h. das Steuerventil PA ist geschlossen und damit gegenüber dem Druckspeicher geschlossen, das Steuerventil BT ist offen, ebenso das Steuerventil TA. Der Webschützen W liegt an der Schlagseite der Kolbenstange 2 an und befindet sich ebenso wie die Kolbenstange 2 in der Stellung X. Der Kolben 7 steht in einer Ruhestellung und die Kolbenstange 8 liegt nicht an dem Kolben 5 an.Fig. 1 shows the basic position, i.e. the control valve PA is closed and thus closed with respect to the pressure accumulator, the control valve BT is open, as is the control valve TA. The weaving machine W rests on the face of the piston rod 2 and, like the piston rod 2, is in the position X. The piston 7 is in a rest position and the piston rod 8 is not in contact with the piston 5.

Gemäß Fig. 2 wurde durch Schließen des Steuerventiles TA Druckmittel über die Druckmittelzuleitung P2 und das Wechselventil WV zum Positionierzylinder 6 geführt und die Kolbenstange 8 zur Anlage am Kolben 5 gebracht. Das Steuerventil PA ist weiterhin geschlossen und das Steuerventil BT geöffnet.According to FIG. 2, pressure medium was led to the positioning cylinder 6 by closing the control valve TA via the pressure medium supply line P 2 and the shuttle valve WV and the piston rod 8 was brought into contact with the piston 5. The control valve PA is still closed and the control valve BT is open.

Fig. 3 zeigt die Schlagstellung. Das Steuerventil PA hat geöffnet und damit eine Verbindung zwischen dem Druckspeicher 11 und dem Zylinderraum A geschaffen.Fig. 3 shows the striking position. The control valve PA has opened and thus created a connection between the pressure accumulator 11 and the cylinder space A.

Der Kolben 5 ist aus der Stellung X in die Stellung S vorgewandert und das im Zylinderraum B verdrängte Öl kann über das offene Steuerventil BT und das in dieser Stellung als Durchflußventil wirkende Steuerventil TA zum Tank fließen, wobei das Entlüftungsventil EL öffnet, sobald ein Ansaugen von Luft durch das in der Leitung 10 zum Tank fließende Öl erforderlich ist.The piston 5 has moved from the position X to the position S and the oil displaced in the cylinder space B can flow to the tank via the open control valve BT and the control valve TA which acts as a flow valve in this position, the vent valve EL opening as soon as a suction of Air is required through the oil flowing in line 10 to the tank.

Weiterhin steht der Positionierzylinder 6 in der Stellung gemäß Fig. 2, in welcher die Druckfeder 12 zusammengepreßt ist.Furthermore, the positioning cylinder 6 is in the position according to FIG. 2, in which the compression spring 12 is compressed.

Gemäß Fig. 4 erfolgt das Einfahren des Kolbens 5 in die Annahmeposition X, indem das Steuerventil BT geschlossen wird und Druck über die Leitung P2 weiterhin auf den Kolben 7 wirkt, so daß die Kolbenstange 8 weiterhin ihre Position beibehält. Das Wechselventil WV hat in die andere Stellung umgewechselt. Gleichzeitig erfolgt eine Druckzugabe über die Leitung P1 in den Zylinderraum B. Das aus dem Zylinderraum A verdrängte Öl fließt über die Leitung VLA und das Ventil TA sowie die Leitung 10 zum Tank und auch hier bewirkt das Entlüftungsventil EL ein Entlüften der Leitung 10, so daß ein schnelles Abfließen des öles gewährleistet ist.4, the piston 5 is retracted into the acceptance position X by the control valve BT being closed and pressure continuing to act on the piston 7 via the line P 2 , so that the piston rod 8 continues to hold its position. The shuttle valve WV has switched to the other position. At the same time, pressure is added via line P 1 to cylinder space B. The oil displaced from cylinder space A flows via line VLA and valve TA as well as line 10 to the tank, and here too the vent valve EL causes line 10 to be vented, see above that a quick drain of the oil is guaranteed.

Gemäß Fig. 5 hat das Steuerventil BT gewechselt, so daß der Zylinder 6 nicht mehr mit Druck beaufschlagt ist, sondern durch Umstellen des Wechselventils WV geöffnet ist, so daß die Druckfeder 12 den Kolben 7 in die in Fig. 5 dargestellte Endlage führen kann. Gleichzeitig hat der Webschützen W den Kolben 5 bzw. die Kolbenstange 2 aus der Stellung X in die Stellung Y zurückgeführt und das aus dem Zylinderraum A verdrängte Öl kann über die Leitung VLA das Steuerventil TA zum Tank 10 fließen.5, the control valve BT has changed so that the cylinder 6 is no longer pressurized, but is opened by switching the shuttle valve WV, so that the compression spring 12 can guide the piston 7 into the end position shown in FIG. 5. At the same time, the weaver W has returned the piston 5 or the piston rod 2 from the position X to the position Y and this from the cylinder space A. Displaced oil can flow the control valve TA to the tank 10 via the line VLA.

Gemäß Fig. 6 hat das Steuerventil TA wieder geschlossen und Druckmittel kann den Kolben 7 beaufschlagen und führt dadurch die Kolbenstange 2 aus der Stellung Y in die Stellung X, d.h. die Abschlag-oder Grundstellung.6, the control valve TA has closed again and pressure medium can act on the piston 7 and thereby guides the piston rod 2 from the Y position to the X position, i.e. the tee or basic position.

Bei der Ausführungsform gemäß Fig. 7 ist ein Sperrventil 14 in die Druckmittelleitung P2 eingeschaltet, das eine Druckzugabe zum Zylinder 6 verhindert, wobei aber das Steuerventil BT geschlossen hat, so daß Druckmittel nunmehr über die Druckmittelleitung P1 zum Zylindrraum B geführt wird und damit den Kolben 5 in eine Endstellung und die Kolbenstange 2 in die Stellung Z führt, in der ein sogenannter Steigkastenwechsel durchgeführt werden kann, da der Webschützen W in der Stellung Y stehenbleibt.In the embodiment according to FIG. 7, a shut-off valve 14 is switched into the pressure medium line P 2 , which prevents pressure from being added to the cylinder 6, but the control valve BT has closed, so that pressure medium is now led to the cylinder space B via the pressure medium line P 1 and thus the piston 5 in an end position and the piston rod 2 in the position Z, in which a so-called riser box change can be carried out, since the shooter W remains in the Y position.

Bei der Darstellung gemäß Fig. 8 ist nunmehr das Sperrventil 14 geöffnet und gleichzeitig das Steuerventil BT geöffnet und das Ventil TA geöffnet. Das Druckmittel wird über die Leitung P2 dem Positionierkolben 7 zugeführt, der den Kolben 5 in die Stellung X führt und damit den Schützen W ebenfalls in die Abschlagposition X bewegt. Hierbei fließt das im Zylinderraum B zu verdrängende Öl über das Ventil BT, TA zum Tank. Das im Raum A benötigte Öl wird aus dem Positionierzylinder verdrängt bzw. genommen.8, the check valve 14 is now open and at the same time the control valve BT is opened and the valve TA is open. The pressure medium is fed via line P 2 to the positioning piston 7, which guides the piston 5 into the position X and thus also moves the contactor W into the striking position X. Here, the oil to be displaced in cylinder chamber B flows through the valve BT, TA to the tank. The oil required in room A is displaced or taken out of the positioning cylinder.

Claims (5)

1. Hydraulisch betriebene Antriebseinrichtung für Webschützen mit je einem auf jeder Seite der Weblade angeordneten, doppeltwirkenden Hydraulikzylinder (1) mit einem in diesem verschiebbar angeordneten Kolben (5) und jeweils einem mit dem Hydraulikzylinder (1) verbundenen Steuerblock mit Steuerventilen, wobei ein Steuerventil (PA) in der Druckmittelzuleitung (P) zu dem kolbenstangenlosen Zylinderraum (A) liegt, ein zweites Steuerventil (TA) vor einem Rückflußtank (T) angeordnet ist und ein drittes Steuerventil (BT), an das der die Kolbenstange (2) aufweisende Zylinderraum (B) des Hydraulikzylinders (1) anschließt, vorgesehen ist, wobei ferner eine Verbindungsleitung (VLA) die Steuerventile (PA, TA) untereinander und mit dem kolbenstangenlosen Zylinderraum (A) verbindet, eine dritte Druckmittelzuleitung (P2) vorgesehen ist, die an die kolbenstangenlose Seite (A) des Hydraulikzylinders (1) anschließt und ein Positionierzylinder (6) an den Hydraulikzylindr (1) anschließt, wobei in dem Positionierzylinder (6) ein Kolben (7) geführt ist, dessen Kolbenstange (8) zum Kolben (5) des Hydraulikzylinders (1) gerichtet ist, dadurch gekennzeichnet, daß in der Leitung (10) zwischen dem Steuerventil (TA) und dem Tank (T) ein Entlüftungsventil (EL) angeordnet ist und der Tank (T) gegenüber dem gesamten Hydraulikleitungssystem tiefgelegt ist. 1. Hydraulically operated drive device for shooters, each with a double-acting hydraulic cylinder (1) arranged on each side of the sley, with a piston (5) slidably arranged in it and each with a control block connected to the hydraulic cylinder (1) with control valves, whereby a control valve (PA) is in the pressure medium supply line (P) to the rodless cylinder chamber (A), a second control valve (TA) is arranged in front of a reflux tank (T) and a third control valve (BT) to which the cylinder chamber (B) of the hydraulic cylinder (1) having the piston rod (2) is provided, wherein a connecting line (VLA) connects the control valves (PA, TA) to each other and to the rodless cylinder chamber (A), a third pressure medium supply line (P 2 ) is provided, which connects to the rodless side (A) of the hydraulic cylinder (1) and a positioning cylinder (6) connects to the hydraulic cylinder (1), a piston (7) being guided in the positioning cylinder (6), the piston rod (8) of which is directed towards the piston (5) of the hydraulic cylinder (1), characterized in that A vent valve (EL) is arranged in the line (10) between the control valve (TA) and the tank (T) and the tank (T) is lowered compared to the entire hydraulic line system. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Verbindungsleitung (VLA) nur das Steuerventil (PA) und das Steuerventil (TA) direkt verbindet, das Steuerventil (BT) aber mit dem Steuerventil (TA) verbunden ist.2. Device according to claim 1, characterized in that the connecting line (VLA) connects only the control valve (PA) and the control valve (TA) directly, the control valve (BT) but is connected to the control valve (TA). 3. Einrichtung nach Anspruch 1 oder 2, gekennzeichnet durch eine Druckfeder (12) im Positionierzylinder (6) zur Beaufschlagung der Kolbenstangenseite des Kolbens (7).3. Device according to claim 1 or 2, characterized by a compression spring (12) in the positioning cylinder (6) for acting on the piston rod side of the piston (7). 4. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß in die Druckmittelzuleitung (P2) vor dem Positionierzylinder (6) ein Sperrventil (14) eingeschaltet ist.4. Device according to one of the preceding claims, characterized in that in the pressure medium supply line (P 2 ) in front of the positioning cylinder (6), a check valve (14) is switched on. 5. Einrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß das Steuerventil (BT) und das Steuerventil (TA) über eine Verbindungsleitung miteinander verbunden sind, in welcher ein Wechselventil (WV) eingeschaltet ist.5. Device according to one of the preceding claims, characterized in that the control valve (BT) and the control valve (TA) are connected to one another via a connecting line in which a shuttle valve (WV) is switched on.
EP86107238A 1985-08-16 1986-05-28 Hydraulic propulsion device for a shuttle Expired EP0215195B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3529288A DE3529288C1 (en) 1985-08-16 1985-08-16 Hydraulically operated drive device for weaving frames
DE3529288 1985-08-16

Publications (2)

Publication Number Publication Date
EP0215195A1 true EP0215195A1 (en) 1987-03-25
EP0215195B1 EP0215195B1 (en) 1989-01-18

Family

ID=6278592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86107238A Expired EP0215195B1 (en) 1985-08-16 1986-05-28 Hydraulic propulsion device for a shuttle

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EP (1) EP0215195B1 (en)
DE (2) DE3529288C1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054844A1 (en) * 1980-12-23 1982-06-30 Emil Jäger KG Hydraulic driver for a shuttle
DE3101417A1 (en) * 1980-12-23 1982-07-15 Emil Jäger KG, 4400 Münster Hydraulically operated drive device for shuttles
DE3406137C1 (en) * 1984-02-21 1985-08-29 Emil Jäger GmbH & Co KG, 4400 Münster Hydraulically operated drive device for weaving frames

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054844A1 (en) * 1980-12-23 1982-06-30 Emil Jäger KG Hydraulic driver for a shuttle
DE3101417A1 (en) * 1980-12-23 1982-07-15 Emil Jäger KG, 4400 Münster Hydraulically operated drive device for shuttles
DE3406137C1 (en) * 1984-02-21 1985-08-29 Emil Jäger GmbH & Co KG, 4400 Münster Hydraulically operated drive device for weaving frames

Also Published As

Publication number Publication date
DE3529288C1 (en) 1986-12-18
DE3661848D1 (en) 1989-02-23
EP0215195B1 (en) 1989-01-18

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