EP0352411B1 - Gripper with guiding piece for looms - Google Patents

Gripper with guiding piece for looms Download PDF

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Publication number
EP0352411B1
EP0352411B1 EP89107602A EP89107602A EP0352411B1 EP 0352411 B1 EP0352411 B1 EP 0352411B1 EP 89107602 A EP89107602 A EP 89107602A EP 89107602 A EP89107602 A EP 89107602A EP 0352411 B1 EP0352411 B1 EP 0352411B1
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EP
European Patent Office
Prior art keywords
gripper
side wall
guide piece
guide
guide wood
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
EP89107602A
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German (de)
French (fr)
Other versions
EP0352411A1 (en
Inventor
Fritz Dr.-Ing. Gehring
Valentin Krumm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lindauer Dornier GmbH
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Lindauer Dornier GmbH
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Publication date
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0352411A1 publication Critical patent/EP0352411A1/en
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Publication of EP0352411B1 publication Critical patent/EP0352411B1/en
Anticipated expiration legal-status Critical
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/27—Drive or guide mechanisms for weft inserting
    • D03D47/277—Guide mechanisms
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/12—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein single picks of weft thread are inserted, i.e. with shedding between each pick
    • D03D47/20—Constructional features of the thread-engaging device on the inserters
    • D03D47/23—Thread grippers

Definitions

  • the invention relates to a gripper with guide wood for a weaving machine with weft insertion by alternately advancing and retracting into the shed support members with grippers arranged at the end thereof, wherein at least one guide wood is arranged on the side wall of the gripper, with which the gripper slides along the reed.
  • connection between the guide wood and the gripper was solved by providing a hole in the guide wood and inserting a tensioning rubber into this hole in such a way that it passed through a corresponding hole on one side of the gripper and there under one Enlarged diameter in the manner of a rivet head.
  • the gripper wood was firmly connected to the outside of the gripper via at least two of the clamping rubbers described.
  • the object of the present invention is to develop a gripper of the present type so that the guide wood, when it comes into contact with the reed, rests with its entire surface on the reed.
  • the invention is characterized in that the guide wood is tiltably mounted on the side of the gripper transversely to the direction of movement of the gripper.
  • the main advantage is achieved that in the control phase of the gripper the guide wood aligns itself with the fixed reed and thus rests against the reed over the largest possible area. This results in a smoother gripper run.
  • a first embodiment provides an exemption in the space between the guide wood and the gripper side wall, so that the guide wood can automatically tilt under the force of the elastic connection between the guide wood and the gripper.
  • the exemption can be made on the guide wood, but it could also be provided on the gripper itself.
  • tilt axis An axis parallel to the longitudinal axis of the gripper is preferred as the tilt axis, which is preferably formed by an axis which is defined by a connecting line which connects the two clamping rubbers to one another.
  • an elastic insert for example made of a foam plastic, a rubber or the like, is arranged between the guide wood and the gripper side wall.
  • This latter embodiment can also be combined by providing both a foam plastic and an exemption.
  • the guide wood is rotatably mounted on an axis at both ends on the side wall of the gripper.
  • the otherwise used elastic straps 3 are omitted and rather either a continuous axis or short axles 17 or stub axles are used for mounting the guide wood 9 or at both ends of the guide wood 9, which penetrate through bends in the side wall.
  • the guide wood is constructed in a sandwich construction and has outer surfaces made of hard material with an elastic insert made of soft material.
  • the outer wall of the guide wood is made of hard material, but can give way elastically when pressurized, which ensures alignment with the fixed reed.
  • the side wall itself is mounted on the gripper with swivel joints on the gripper.
  • the side wall is supported on the gripper by a spring.
  • a gripper 1 has a side wall 2, a guide wood 8 being arranged on this side wall via two spaced-apart tensioning rubbers 3.
  • the attachment via the tensioning rubber 3 takes place in such a way that in each case a bore 5 is provided in the side wall 2, through which the tensioning rubber engages with a neck of smaller cross-section.
  • the clamping rubber On the inside of the side wall 2, the clamping rubber has a head 4 of enlarged diameter, and in the guide wood 8 there is a bore 6 which has an enlarged diameter compared to the bore 5, so that a transition from the bore 6 into the bore 5 has a paragraph 7.
  • the bore diameters 5 and 6 therefore differ from one another and are separated from one another by way of the step 7, which is arranged in the guide wood.
  • the bores 5, 6 are thus filled in by the tensioning rubber 3.
  • the pivoting takes place in that an exemption 11 is arranged on the guide wood between the inner surface of the guide wood and the associated outer surface of the side wall, i. H. the guide wood lies only approximately in a line between the elastic straps 3 on the side wall.
  • a pivot line is thus formed outside of which the exemption 11 is attached, so that the guide wood 8 can thereby pivot freely in the direction of the arrow 13 under the elasticity of the tensioning rubbers 3.
  • a corresponding exemption 15 is also arranged on the upper side of the guide wood.
  • FIG. 3 A second embodiment is shown in FIG. 3, wherein an elastic insert 10 is arranged between a straight guide wood 9 (the inner wall of the guide wood 9 in relation to the outer wall of the side wall 2 of the gripper 1 is straight).
  • This elastic insert consists, for. B. from a foam plastic, a rubber or a rubber material, so that it is easily compressible and resiliently elastic.
  • the guide wood 9 also enables the required tilting movement in the arrow directions 12, 13.
  • the gripper has a much smoother run in its control phase, because it is ensured that the guide wood 8, 9 with its tread 16 is always in full contact with the reed.
  • the guide piece 9 is rotatably supported at both ends, specifically on axes 17, which, starting from the angled portions of the side wall 2, pass through the guide wood 9.
  • the guide wood 9 can also pivot in the direction of the arrows 12, 13 via this type of mounting, the guide wood being rounded in the region of the side wall in order to permit the guide wood 9 to be pivoted into the side wall 2 in this way.
  • the guide wood 9 is constructed in a sandwich construction, with outer surfaces 19 made of hard material and an elastic insert 18 made of soft material, so that the outer wall of the guide wood 9 can yield elastically when it hits the reed and aligns with the reed.
  • elastic tensioning rubbers 3 are also provided, on which the guide wood 9 is fastened to the side wall 2 in an additional elastic mounting.
  • the guide wood 9 and the side wall 2 are provided so that they can be pivoted together, specifically in the region of the swivel joints 20 that start from the gripper 1.
  • the guide wood 9 pivots with the side wall 2 in the arrow directions 22, 23 in the sense of alignment with the fixed reed.
  • the side wall 2 is cushioned with respect to the gripper 1, in particular by a spring 21, which, after cushioning, brings the guide wood 9 and the side wall 2 back into the starting position.
  • the elastic insert 10 between the side wall 2 and the guide wood 8 serves as a damper against hard impacts
  • the lower clearance 11 running in a horizontal line with its longitudinal extension parallel to the longitudinal extension of the guide wood 9 permits excellent movement play of the guide wood around the longitudinal axis ( Tilting position).
  • the lower exemption 11 can, however, also be arranged at the top, as is indicated in FIG. 9 at item 11 '.
  • Fig. 9 also shows that an upper (11 ') and a lower exemption 11 may be present. It is important that all of the exemplary embodiments in FIGS. 1 to 9 can be combined with one another.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Adjustment And Processing Of Grains (AREA)

Description

Die Erfindung betrifft einen Greifer mit Führungsholz für eine Webmaschine mit Schußfadeneintrag durch alternierend ins Webfach vor- und zurückschiebbare Trägerorgane mit an deren Ende angeordneten Greifern, wobei an der Seitenwand des Greifers jeweils mindestens ein Führungsholz angeordnet ist, mit dem der Greifer am Riet entlanggleitet.The invention relates to a gripper with guide wood for a weaving machine with weft insertion by alternately advancing and retracting into the shed support members with grippers arranged at the end thereof, wherein at least one guide wood is arranged on the side wall of the gripper, with which the gripper slides along the reed.

Derartige Greifer sind in vielfältigen Ausführungsformen bekannt geworden (siche DE-A-3519685).Such grippers have become known in various embodiments (siche DE-A-3519685).

Bisher hatte man als Führung ein mit Phenolharz getränktes Baumwollgewebe verwendet, welches seitlich fest am Greifer angeordnet war.Previously, a cotton fabric soaked in phenolic resin was used as a guide, which was firmly arranged on the side of the gripper.

In an sich bekannter Weise war die Verbindung zwischen dem Führungsholz und dem Greifer dadurch gelöst, daß man eine Bohrung im Führungsholz vorsah und in diese Bohrung einen Spanngummi derart einsetzte, daß er durch eine entsprechende Bohrung an der einen Seite des Greifers hindurchtrat und dort unter einer Durchmesservergrößerung in der Art eines Nietkopfes anlag.
Auf diese Weise war das Greiferholz über mindestens zwei der beschriebenen Spanngummis fest mit der Greiferaußenseite verbunden.In a manner known per se, the connection between the guide wood and the gripper was solved by providing a hole in the guide wood and inserting a tensioning rubber into this hole in such a way that it passed through a corresponding hole on one side of the gripper and there under one Enlarged diameter in the manner of a rivet head.
In this way, the gripper wood was firmly connected to the outside of the gripper via at least two of the clamping rubbers described.

Diese Befestigung des Führungsholzes ist Gegenstand eines älteren Patentes der Anmelderin.This attachment of the guide wood is the subject of an older patent by the applicant.

Es hat sich nun herausgestellt, daß beim Einführen derartiger Greifer in das Webfach der Greifer eine geringfügige Kippbewegung macht, die dazu führt, daß das Führungsholz am Riet anstößt.It has now been found that when inserting such grippers in the shed of the gripper makes a slight tilting movement, which leads to the guide wood abutting the reed.

Aufgabe der vorliegenden Erfindung ist es, einen Greifer nach der vorliegenden Art so weiterzubilden, daß das Führungsholz, wenn es mit dem Riet in Berührung kommt, mit seiner ganzen Fläche am Riet anliegt.The object of the present invention is to develop a gripper of the present type so that the guide wood, when it comes into contact with the reed, rests with its entire surface on the reed.

Zur Lösung der gestellten Aufgabe ist die Erfindung dadurch gekennzeichnet, daß das Führungsholz an der Seite des Greifers quer zur Greiferbewegungsrichtung kippbar gelagert ist.To achieve the object, the invention is characterized in that the guide wood is tiltably mounted on the side of the gripper transversely to the direction of movement of the gripper.

Damit wird der wesentliche Vorteil erzielt, daß in der Steuerphase des Greifers das Führungsholz sich am feststehenden Riet ausrichtet und damit über eine größtmögliche Fläche am Riet anliegt. Damit wird ein ruhigerer Greiferlauf erzielt.The main advantage is achieved that in the control phase of the gripper the guide wood aligns itself with the fixed reed and thus rests against the reed over the largest possible area. This results in a smoother gripper run.

Für die schwenkbare Lagerung des Führungsholzes an der Seitenfläche des Greifers gibt es mehrere Ausführungsformen.There are several embodiments for the pivotable mounting of the guide wood on the side surface of the gripper.

Eine erste Ausführungsform sieht eine Freistellung im Zwischenraum zwischem dem Führungsholz und der Greiferseitenwand vor, so daß sich das Führungsholz unter der Kraft der elastischen Verbindung zwischen dem Führungsholz und dem Greifer selbsttätig kippbar einstellen kann.A first embodiment provides an exemption in the space between the guide wood and the gripper side wall, so that the guide wood can automatically tilt under the force of the elastic connection between the guide wood and the gripper.

Die Freistellung kann hierbei sowohl am Führungsholz vorgenommen werden, aber sie könnte auch am Greifer selbst vorgesehen sein.The exemption can be made on the guide wood, but it could also be provided on the gripper itself.

Als Kippachse wird hierbei eine zur Greiferlängsachse parallele Achse bevorzugt, die vorzugsweise durch eine Achse gebildet wird, welche durch eine Verbindungslinie definiert ist, welche die beiden Spanngummis miteinander verbindet.An axis parallel to the longitudinal axis of the gripper is preferred as the tilt axis, which is preferably formed by an axis which is defined by a connecting line which connects the two clamping rubbers to one another.

In einer weiteren Ausbildung der vorliegenden Erfindung ist vorgesehen, daß zwischen dem Führungsholz und der Greiferseitenwand eine elastische Einlage, zum Beispiel aus einem Schaumkunststoff, einem Gummi oder dergleichen angeordnet ist.In a further embodiment of the present invention it is provided that an elastic insert, for example made of a foam plastic, a rubber or the like, is arranged between the guide wood and the gripper side wall.

Ebenso kann diese letztgenannte Ausführungsform noch kombiniert werden, indem man sowohl einen Schaumkunststoff als auch eine Freistellung vorsieht.This latter embodiment can also be combined by providing both a foam plastic and an exemption.

In einer weiteren Ausgestaltung ist es vorgesehen, daß das Führungsholz an einer Achse an beiden Enden an der Seitenwand des Greifers drehend gelagert ist. Hierbei fallen die sonst verwendeten Spanngummis 3 weg und es werden zur Lagerung des Führungsholzes 9 vielmehr entweder eine durchgehende Achse oder an beiden Enden des Führungsholzes 9 kurze Achsen 17 bzw. Achsstummel verwendet, welche Abwinklungen der Seitenwand durchgreifen.In a further embodiment it is provided that the guide wood is rotatably mounted on an axis at both ends on the side wall of the gripper. In this case, the otherwise used elastic straps 3 are omitted and rather either a continuous axis or short axles 17 or stub axles are used for mounting the guide wood 9 or at both ends of the guide wood 9, which penetrate through bends in the side wall.

In einer weiteren Ausführung ist das Führungsholz in Sandwich-Bauweise ausgebildet und weist Außenflächen aus hartem Material auf mit einer elastischen Einlage aus weichem Material.In a further embodiment, the guide wood is constructed in a sandwich construction and has outer surfaces made of hard material with an elastic insert made of soft material.

Die Außenwand des Führungsholzes ist hierbei zwar aus hartem Material, kann aber bei Druckbeaufschlagung elastisch nachgeben, wodurch die Ausrichtung am feststehenden Riet gewährleistet ist.The outer wall of the guide wood is made of hard material, but can give way elastically when pressurized, which ensures alignment with the fixed reed.

In weiterer Ausgestaltung der Lagerung zwischen dem Führungsholz und der Seitenwand ist es vorgesehen, daß die Seitenwand selbst mit dem Führungsholz über Drehgelenke an dem Greifer gelagert sind.In a further embodiment of the bearing between the guide wood and the side wall, it is provided that the side wall itself is mounted on the gripper with swivel joints on the gripper.

Hierbei wird bei der Ausrichtung am Riet nicht nur das Führungsholz verschwenkt, sondern auch die Seitenwand, wobei die sonst feststehende Seitenwand über Drehgelenke an dem Greifer gelagert ist.When aligning with the reed, not only the guide wood is pivoted, but also the side wall, with the otherwise fixed one Side wall is mounted on the gripper via swivel joints.

In Ausgestaltung dieser Lagerung stützt sich die Seitenwand über eine Feder am Greifer ab.In an embodiment of this mounting, the side wall is supported on the gripper by a spring.

Der Erfindungsgegenstand der vorliegenden Erfindung ergibt sich nicht nur aus dem Gegenstand der einzelnen Patentansprüche, sondern auch aus der Kombination der einzelnen Patentansprüche untereinander. Alle in den Unterlagen - einschließlich der Zusammenfassung - offenbarten Angaben und Merkmale, insbesondere die in den Zeichnungen dargestellte räumliche Ausbildung werden als erfindungswesentlich beansprucht, soweit sie einzeln oder in Kombination gegenüber dem Stand der Technik neu sind.The subject matter of the present invention results not only from the subject matter of the individual patent claims, but also from the combination of the individual patent claims with one another. All information and features disclosed in the documents - including the summary -, in particular the spatial design shown in the drawings, are claimed to be essential to the invention insofar as they are new to the prior art, individually or in combination.

Im folgenden wird die Erfindung anhand einer lediglich einen Ausführungsweg darstellenden Zeichnung näher erläutert. Hierbei gehen aus der Zeichnung und ihrer Beschreibung weitere erfindungswesentliche Merkmale und Vorteile der Erfindung hervor.The invention is explained in more detail below with the aid of a drawing which represents only one embodiment. Here, further features and advantages of the invention that are essential to the invention emerge from the drawing and its description.

Es zeigt:

  • Figur 1 einen Schnitt gemäß der Linie I-I in Figur 2,
  • Figur 2 die Seitenansicht auf die eine Seite des Greifers und
  • Figur 3 im Vergleich zu Figur 1 ein abgewandeltes Ausführungsbeispiel.
  • Figur 4 eine drehende Lagerung des Führungsstücks am Greifer,
  • Figur 5 einen Schnitt gemäss der Linie A-A nach Figur 4,
  • Figur 6 eine elastische Lagerung des Führungsholzes aufgrund Sandwich-Bauweise,
  • Figur 7 die drehbare Lagerung von Führungsstück und Seitenwand an Drehgelenken,
  • Figur 8 ein im Vergleich zu Figur 3 abgewandeltes Ausführungsbeispiel,
  • Figur 9 eine im Vergleich zu Figur 8 weitere Ausführung.
It shows:
  • FIG. 1 shows a section along line II in FIG. 2,
  • Figure 2 is a side view of one side of the gripper and
  • Figure 3 in comparison to Figure 1 shows a modified embodiment.
  • FIG. 4 shows a rotating mounting of the guide piece on the gripper,
  • FIG. 5 shows a section along the line AA according to FIG. 4,
  • FIG. 6 an elastic mounting of the guide wood due to the sandwich construction,
  • FIG. 7 shows the rotatable mounting of guide piece and side wall on swivel joints,
  • FIG. 8 shows an exemplary embodiment modified in comparison to FIG. 3,
  • Figure 9 shows a further embodiment compared to Figure 8.

In Figur 1 ist dargestellt, daß ein Greifer 1 eine Seitenwand 2 aufweist, wobei an dieser Seitenwand über zwei voneinander beabstandete Spanngummis 3 ein Führungsholz 8 angeordnet ist.In Figure 1 it is shown that a gripper 1 has a side wall 2, a guide wood 8 being arranged on this side wall via two spaced-apart tensioning rubbers 3.

Die Befestigung über den Spanngummi 3 erfolgt jeweils so, daß in der Seitenwand 2 jeweils eine Bohrung 5 vorgesehen ist, durch welche der Spanngummi mit einem Hals geringeren Querschnitts greift.The attachment via the tensioning rubber 3 takes place in such a way that in each case a bore 5 is provided in the side wall 2, through which the tensioning rubber engages with a neck of smaller cross-section.

Auf der Innenseite der Seitenwand 2 weist der Spanngummi einen Kopf 4 vergrößerten Durchmessers auf, und im Führungsholz 8 ist hierbei eine Bohrung 6 vorgesehen, die im Vergleich zu der Bohrung 5 einen vergrößerten Durchmesser aufweist, so daß ein Übergang von der Bohrung 6 in die Bohrung 5 über einen Absatz 7 vorhanden ist.On the inside of the side wall 2, the clamping rubber has a head 4 of enlarged diameter, and in the guide wood 8 there is a bore 6 which has an enlarged diameter compared to the bore 5, so that a transition from the bore 6 into the bore 5 has a paragraph 7.

Die Bohrungsdurchmesser 5 und 6 unterscheiden sich also voneinander und sind über den Absatz 7 voneinander getrennt, der im Führungsholz angeordnet ist.The bore diameters 5 and 6 therefore differ from one another and are separated from one another by way of the step 7, which is arranged in the guide wood.

Die Bohrungen 5,6 sind damit durch den Spanngummi 3 ausgefüllt.The bores 5, 6 are thus filled in by the tensioning rubber 3.

Auf diese Weise ist - gemäß einem älteren Patent des Anmelders - das Führungsholz 8 an der Seitenwand 2 des Greifers 1 angeordnet.In this way - according to an older patent of the applicant - the guide wood 8 is arranged on the side wall 2 of the gripper 1.

Um nun dem Führungsholz 8 eine Kippbewegung in den Pfeilrichtungen 12,13 quer zur Greifertransportrichtung 14 zu verleihen ist das Führungsholz 8 schwenkbar an der Greiferseitenwand 2 befestigt.In order to now give the guide wood 8 a tilting movement in the arrow directions 12, 13 transversely to the gripper transport direction 14, the guide wood 8 is pivotally attached to the gripper side wall 2.

In der ersten Ausführungsform nach Fig. 1 erfolgt das Verschwenken dadurch, daß zwischen der Innenfläche des Führungsholzes und der zugeordneten Außenfläche der Seitenwand eine Freistellung 11 am Führungsholz angeordnet ist, d. h. das Führungsholz liegt nur etwa in einer Linie zwischen den Spanngummis 3 an der Seitenwand auf. Es wird damit eine Schwenklinie gebildet außerhalb der die Freistellung 11 angebracht ist, so daß hierdurch das Führungsholz 8 unter der Elastizität der Spanngummis 3 frei in der Pfeilrichtung 13 verschwenken kann. Um das Führungsholz 8 auch in der Pfeilrichtung 12 verkippbar zu machen, ist vorgesehen, daß auch an der oberen Seite des Führungsholzes eine entsprechende Freistellung 15 angeordnet ist.In the first embodiment according to FIG. 1, the pivoting takes place in that an exemption 11 is arranged on the guide wood between the inner surface of the guide wood and the associated outer surface of the side wall, i. H. the guide wood lies only approximately in a line between the elastic straps 3 on the side wall. A pivot line is thus formed outside of which the exemption 11 is attached, so that the guide wood 8 can thereby pivot freely in the direction of the arrow 13 under the elasticity of the tensioning rubbers 3. In order to make the guide wood 8 tiltable in the direction of the arrow 12, it is provided that a corresponding exemption 15 is also arranged on the upper side of the guide wood.

Eine zweite Ausführungsform zeigt Fig. 3, wobei zwischen einem gerade ausgebildeten Führungsholz 9 (die Innenwand des Führungsholzes 9 in Bezug zur Außenwand der Seitenwand 2 des Greifers 1 ist hierbei gerade ausgebildet) eine elastische Einlage 10 angeordnet ist. Diese elastische Einlage besteht z. B. aus einem Schaumkunststoff, einem Gummi oder einem Kautschukmaterial, so daß es leicht zusammendrückbar ist und federnd elastisch ist.A second embodiment is shown in FIG. 3, wherein an elastic insert 10 is arranged between a straight guide wood 9 (the inner wall of the guide wood 9 in relation to the outer wall of the side wall 2 of the gripper 1 is straight). This elastic insert consists, for. B. from a foam plastic, a rubber or a rubber material, so that it is easily compressible and resiliently elastic.

Auf diese Weise wird dem Führungsholz 9 ebenfalls die geforderte Kippbewegung in den Pfeilrichtungen 12,13 ermöglicht.In this way, the guide wood 9 also enables the required tilting movement in the arrow directions 12, 13.

In Kombination dieser beiden Ausführungsbeispiele ist es vorgesehen, daß nach den Fig. 1 und 3 sowohl eine elastische Einlage 10 als auch die beschriebenen Freistellungen 11,15 vorgesehen sein können.In combination of these two embodiments, it is provided that 1 and 3, both an elastic insert 10 and the described exemptions 11, 15 can be provided.

Mit der beschriebenen Konstruktion wird also der wesentliche Vorteil erreicht, daß der Greifer in seiner Steuerphase einen wesentlich ruhigeren Lauf hat, weil dafür gesorgt ist, daß das Führungsholz 8,9 mit seiner Lauffläche 16 stets vollflächig am Riet anliegt.With the construction described, the main advantage is achieved that the gripper has a much smoother run in its control phase, because it is ensured that the guide wood 8, 9 with its tread 16 is always in full contact with the reed.

Es versteht sich von selbst, daß eine derartige pendelnde Lagerung des Führungsholzes sowohl am Bringergreifer als auch am Nehmergreifer angeordnet werden kann.It goes without saying that such a pendulum mounting of the guide wood can be arranged both on the grabber and on the slave gripper.

Bei einer weiteren Ausführungsform nach Figur 4 ist ersichtlich, daß das Führungsstück 9 drehend gelagert an beiden Enden ist und zwar an Achsen 17, welches ausgehend von Abwinklungen der Seitenwand 2 das Führungsholz 9 durchgreifen.In a further embodiment according to FIG. 4, it can be seen that the guide piece 9 is rotatably supported at both ends, specifically on axes 17, which, starting from the angled portions of the side wall 2, pass through the guide wood 9.

In Figur 5 ist dargestellt, daß das Führungsholz 9 über diese Art der Lagerung ebenfalls in den Pfeilrichtungen 12,13 verschwenken kann, wobei das Führungsholz im Bereich der Seitenwand eine Abrundung aufweist, um derart das Einschwenken des Führungsholzes 9 an die Seitenwand 2 zu gestatten.In FIG. 5 it is shown that the guide wood 9 can also pivot in the direction of the arrows 12, 13 via this type of mounting, the guide wood being rounded in the region of the side wall in order to permit the guide wood 9 to be pivoted into the side wall 2 in this way.

In einer weiteren Ausführungsform nach Figur 6 ist das Führungsholz 9 in Sandwich-Bauweise ausgebildet, wobei Außenflächen 19 aus hartem Material vorgesehen sind und eine elastische Einlage 18 aus weichem Material, so daß derart die Außenwand des Führungsholzes 9 beim Anstossen an das Riet elastisch nachgeben kann und sich am Riet ausrichtet. Bei dieser Ausführungsform in Sandwich-Bauweise sind weiterhin elastische Spanngummis 3 vorgesehen, an denen das Führungsholz 9 in zusätzlicher elastischer Lagerung an der Seitenwand 2 befestigt ist. Durch die Sandwich-Bauweise nach Figur 6 erhält das Führungsholz 9 insich eine elastische Bauweise, wodurch die Ausrichtung am Riet stets gewährleistet ist.In a further embodiment according to FIG. 6, the guide wood 9 is constructed in a sandwich construction, with outer surfaces 19 made of hard material and an elastic insert 18 made of soft material, so that the outer wall of the guide wood 9 can yield elastically when it hits the reed and aligns with the reed. In this embodiment in sandwich construction, elastic tensioning rubbers 3 are also provided, on which the guide wood 9 is fastened to the side wall 2 in an additional elastic mounting. Through the 6, the guide wood 9 is given an elastic construction, so that alignment with the reed is always guaranteed.

In einer weiteren Ausgestaltung nach Figur 7 sind das Führungsholz 9 und die Seitenwand 2 gemeinsam verschwenkbar vorgesehen , und zwar im Bereich von Drehgelenken 20, die von dem Greifer 1 ausgehen. Hierbei verschwenkt das Führungsholz 9 mit der Seitenwand 2 in den Pfeilrichtungen 22,23 im Sinne einer Ausrichtung an dem feststehenden Riet. In vorteilhafter Ausgestaltung ist hierbei die Seitenwand 2 gegenüber dem Greifer 1 abgefedert, insbesondere durch eine Feder 21, welche nach einem Abfedern das Führungsholz 9 und die Seitenwand 2 wieder in die Ausgangsposition zurückbringen.In a further embodiment according to FIG. 7, the guide wood 9 and the side wall 2 are provided so that they can be pivoted together, specifically in the region of the swivel joints 20 that start from the gripper 1. Here, the guide wood 9 pivots with the side wall 2 in the arrow directions 22, 23 in the sense of alignment with the fixed reed. In an advantageous embodiment, the side wall 2 is cushioned with respect to the gripper 1, in particular by a spring 21, which, after cushioning, brings the guide wood 9 and the side wall 2 back into the starting position.

In der Ausführungsform nach Fig. 8 werden besondere Vorteile hinsichtlich der gelenkigen Lagerung des Führungsholzes 8 erreicht. Einerseits dient die elastische Einlage 10 zwischen Seitenwand 2 und dem Führungsholz 8 als Dämpfer gegen harte Schläge, andererseits erlaubt jedoch die sich in horizontaler Linie mit ihrer Längserstreckung parallel zur Längserstreckung des Führungsholzes 9 verlaufende untere Freistellung 11 ein ausgezeichnetes Bewegungsspiel des Führungsholzes um die Längsachse herum (Kipplagerung). Die untere Freistellung 11 kann jedoch auch oben angeordnet sein, wie dies in Fig. 9 bei Pos. 11′ angedeutet ist. Fig. 9 zeigt zusätzlich, daß auch eine obere (11′) und eine untere Freistellung 11 vorhanden sein können. Wichtig ist, daß alle Ausführungsbeispiele der Figuren 1 bis 9 untereinander kombinierbar sind.In the embodiment according to FIG. 8, particular advantages with regard to the articulated mounting of the guide wood 8 are achieved. On the one hand, the elastic insert 10 between the side wall 2 and the guide wood 8 serves as a damper against hard impacts, on the other hand, however, the lower clearance 11 running in a horizontal line with its longitudinal extension parallel to the longitudinal extension of the guide wood 9 permits excellent movement play of the guide wood around the longitudinal axis ( Tilting position). The lower exemption 11 can, however, also be arranged at the top, as is indicated in FIG. 9 at item 11 '. Fig. 9 also shows that an upper (11 ') and a lower exemption 11 may be present. It is important that all of the exemplary embodiments in FIGS. 1 to 9 can be combined with one another.

Claims (9)

1. A gripper for a weaving machine with weft feed through carrier members which are able to be pushed back and forth in an alternating manner into the weaving compartment, with grippers arranged at its end, in which on the side wall of the gripper in each case at least one guide piece is arranged, with which the gripper slides along the reed, characterised in that the guide piece (8, 9) is mounted on the side wall (2) of the gripper (1) so as to be tiltable transversely to the feed direction (14).
2. A gripper according to claim 1, characterised in that the guide piece (8, 9) is tiltable about its elastic attachment (stretch rubber 3) on the side wall (2) of the gripper (1) as a swivel bearing.
3. A gripper according to claim 1 or 2, characterised in that for the tiltable mounting of the guide piece (8) a free position (11, 15) is arranged between the guide piece (8) and the facing side wall (2) of the gripper (1) on the guide piece (8) or in the side wall (2).
4. A gripper according to one of claims 1 to 3, characterised in that for the tiltable mounting of the guide piece (8, 9) an elastic insert (10) is arranged between the guide piece (8, 9) and the side wall (2).
5. A gripper according to claim 1, characterised in that the guide piece (8, 9) is mounted rotatably on an axis (17) at both ends on the side wall (2).
6. A gripper according to claim 1, characterised in that the guide piece (8, 9) has a sandwich structure, consisting of outer faces (19) of hard material and an elastic insert (18) of soft material.
7. A gripper according to claim 1, characterised in that the side wall (2) is mounted with the guide piece (8, 9) by means of swivel joints (20) on the gripper (1).
8. A gripper according to claim 7, characterised in that the side wall (2) is supported against the gripper (1) by means of a spring (21).
9. A gripper according to one of claims 3 to 8, characterised in that the guide piece (8) is mounted so as to be orientable about its longitudinal axis in that firstly an elastic insert (10) is arranged between the guide piece (8, 9) and the side wall (2), and that additionally the guide piece has at least one upper and/or lower free position (11, 11′) running parallel to the longitudinal axis (Fig. 8, 9).
EP89107602A 1988-07-25 1989-04-27 Gripper with guiding piece for looms Expired - Lifetime EP0352411B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3825230 1988-07-25
DE3825230 1988-07-25
DE3901549 1989-01-20
DE3901549A DE3901549A1 (en) 1988-07-25 1989-01-20 GRIPPER WITH GUIDE WOOD FOR WEAVING MACHINES

Publications (2)

Publication Number Publication Date
EP0352411A1 EP0352411A1 (en) 1990-01-31
EP0352411B1 true EP0352411B1 (en) 1992-06-03

Family

ID=25870467

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89107602A Expired - Lifetime EP0352411B1 (en) 1988-07-25 1989-04-27 Gripper with guiding piece for looms

Country Status (4)

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US (1) US4922970A (en)
EP (1) EP0352411B1 (en)
JP (1) JPH0274644A (en)
DE (2) DE3901549A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5122975A (en) * 1989-11-30 1992-06-16 Axis Usa, Inc. Methods and apparatus for marking and identifying hooks of electric motors
DE59306482D1 (en) * 1992-02-28 1997-06-26 Dornier Gmbh Lindauer Device for guiding belt or bar grippers in weaving machines
DE19517493A1 (en) * 1995-05-12 1996-11-14 Dornier Gmbh Lindauer Reed for weaving machines
DE102009036589A1 (en) 2009-08-07 2011-02-10 Lindauer Dornier Gmbh Device for transferring a band-shaped weft material
DE102009037127A1 (en) * 2009-08-11 2011-02-17 Lindauer Dornier Gmbh Gripper head of a weaving machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190266A (en) * 1921-09-26 1922-12-21 Rudolf Engler Improvements in or relating to weftinserting devices for looms
US3487859A (en) * 1967-09-26 1970-01-06 Somet Soc Mec Tessile Looms
FR1598258A (en) * 1968-12-03 1970-07-06
FR2320370A1 (en) * 1975-08-04 1977-03-04 Alsacienne Constr Meca WEFT-PASS NEEDLE FOR SHUTTLE Looms
FR2320371A1 (en) * 1975-08-04 1977-03-04 Alsacienne Constr Meca SINGLE OR DOUBLE TABLE SHUTTLE Loom
DE3519685C1 (en) * 1985-06-01 1986-08-28 Lindauer Dornier Gmbh, 8990 Lindau Fastening device for interchangeably arranged guiding bodies on non-contact looms

Also Published As

Publication number Publication date
DE3901549C2 (en) 1990-05-23
JPH0274644A (en) 1990-03-14
JPH0351809B2 (en) 1991-08-08
US4922970A (en) 1990-05-08
DE3901549A1 (en) 1990-02-08
DE58901575D1 (en) 1992-07-09
EP0352411A1 (en) 1990-01-31

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