EP2107145B1 - Gripper for an Axminster loom - Google Patents
Gripper for an Axminster loom Download PDFInfo
- Publication number
- EP2107145B1 EP2107145B1 EP08103301A EP08103301A EP2107145B1 EP 2107145 B1 EP2107145 B1 EP 2107145B1 EP 08103301 A EP08103301 A EP 08103301A EP 08103301 A EP08103301 A EP 08103301A EP 2107145 B1 EP2107145 B1 EP 2107145B1
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- EP
- European Patent Office
- Prior art keywords
- gripper
- clamping jaw
- gripper according
- holding element
- spacer
- 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.)
- Not-in-force
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-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D39/00—Pile-fabric looms
- D03D39/02—Axminster looms, i.e. wherein pile tufts are inserted during weaving
- D03D39/08—Gripper Axminster looms
Definitions
- the invention relates to a gripper for an Axminster loom.
- Axminster weaving machines place high demands on the precision of the operation of the grippers.
- the co-operating grippers sitting on a bar must be able to grasp the threads precisely and pass between the warp threads.
- the grippers must be made relatively narrow so that they fit between the warp threads.
- the grippers are usually each formed by two very narrow jaws, which are held together by a rivet.
- the rivet forms a hinge which permits opening and closing of the pliers formed by the jaws.
- Such a gripper is for example from the GB 1 353 153 known.
- one of the jaws is provided at a flattened point with a short tube extension, which serves as a hollow rivet and is crimped into a corresponding recess of the other jaw.
- the arrangement is critical in several respects, because the flanged portion of the tubular extension is at the same time rivet and storage.
- the DE 10 2004 061 166 A1 improves the storage in which receives a recessed jaws on the recess an annular rib which engages in an annular groove of the other jaws.
- the storage conditions of the two jaws together are significantly improved.
- this solution places high demands on the production technology.
- the desired clearance between the two jaws must be set defined.
- the jaws must not be too stiff but not too smooth.
- a gripper according to the preamble of claim 1 is known, the two jaws are held together by means of a holding element in the form of a flat disc. In a recess of the first jaw, a portion of the second jaw is supported and held there between the first jaw and the disc. The disc is attached by riveting on the first jaw.
- the gripper according to the invention has two clamping jaws, which are connected to each other by a hinge.
- the first jaws are assigned to the formation of the joint, two thrust bearing surfaces, which are held by a spacer at a distance from each other.
- the spacer may be formed as a separate component or as part of one of the jaws.
- at least one of the thrust bearing surfaces is formed directly on the jaw, while the other of the two thrust bearing surfaces is formed on a separate element.
- this axial play is not influenced by the connection technique, by means of which the holding element is connected to the first clamping jaw.
- connection technique for example, form-fitting connections such as crimp connections, rivet connections, screw connections etc. and / or cohesive connections such as laser welding connections, adhesive connections and the like can serve this purpose.
- the spacer may be an annular or tubular extension of the first jaw. This then has on its end face on a support surface on which the holding element finds its investment.
- the holding element extends through an opening which is enclosed by the support surface and is secured in this opening.
- the above-mentioned joining techniques may be used individually or in conjunction with each other.
- the holding element is formed by a preferably disc-shaped head, which has an annular surface which rests on the support surface and projects beyond it in the radial direction.
- the towering part then forms the thrust bearing surface for the second jaw.
- the head of the retaining element is preferably located in a recess of the second jaw, so that the gripper has substantially flat side surfaces without elevations.
- the gripper is characterized essentially smooth.
- the holding element closes flush with at least one, preferably both jaws, in particular with their flat sides. The gripper can thus easily grip between the warp threads, without hanging on the warp threads and damage them.
- the spacer preferably has a cylindrical outer circumference, which can serve as a bearing surface (radial bearing surface) for the second jaw.
- This can be a quite sufficient storage and precision.
- the groove may be arcuate or annular.
- On the other jaws can be provided correspondingly one or more projections which engage in this groove and slide in this.
- the projection may be formed as a curved rib or as a closed annular rib.
- the flanks of the arcuate or annular groove and the flanks of the arcuate or annular rib can form a radial bearing.
- FIG. 1 An Axminster weaving machine 1 is illustrated in a highly simplified manner. It is used to produce a pile fabric. It has a plurality of not illustrated warp beams, of which a plurality of warp threads 2, 3, 4 are introduced. With the warp threads 2, 3, 4 subjects are formed, in which one or usually two weft threads 5 are registered, as it Fig. 2 shows. To shed serve heald shafts 6, 7, 8, which lead the warp threads 2, 3, 4 by means of strands.
- the gripper device 10 with the grippers 11 is movable between a position A in which it uses pile threads 9 in the fabric and a position B in which they pile yarns of a thread carrier 12 picks up.
- the thread carrier 12 can hold a plurality of threads 13, 14 of different colors and be controlled so that in each case the desired thread is picked up, for example, with a pattern depending on the selected color.
- a knife carrier 15 has one or more knives for cutting off a piece of a desired length from the pile yarn, the end of which holds the gripper means.
- the grippers 11 are held on a bar 16, which carries a large number of other identically designed gripper. These are in Fig. 1 arranged congruently one above the other perpendicular to the plane of the drawing.
- a control shaft 17 is provided for opening and closing the gripper 11. The bar 16 and the control shaft 17 are pivotable together so that the grippers 11 are reciprocated between the positions A and B.
- To the Axminster weaving machine 1 also belongs one more Anschlagbarre with corresponding blades 18, as for example Fig. 2 can be seen.
- the gripper 11 has according to Fig. 3 two jaws 19, 21 on.
- the to be connected to the Barre 16 jaws 19 is often referred to as a base.
- the pivotally mounted on the jaws 19 jaws 21 is often referred to as a lever.
- the jaws 19, 21 are flat sheet metal parts with a thickness between one or a few millimeters. They point perpendicular to the drawing plane in Fig. 3 a matching thickness defined between the side surfaces 43 and 47 ( FIG. 5 ). Their flanks are substantially in the same planes, ie the jaws 19, 20 are arranged without lateral offset to each other.
- the clamping jaw 19 is provided at one end 22 with a fastening profile 23 in the form of a T-section. At its other end 24, it runs in a wedge shape with the same thickness.
- a gripper surface 25 may be attached to the end 24.
- the jaws 21 has a coupling profile 26 for the control shaft 17 at one end 27.
- the other end 28 of the jaw 21 is again wedge-shaped and provided with a gripper surface 29.
- the ends 24, 28 of the jaws 19, 21 form a tapered beak 31.
- a hinge 32 For articulated mounting of the jaws 19, 21 to each other is a hinge 32.
- the hinge 32 defines a transverse to the jaws 19, 21 and thus in Fig. 3 fixed to the plane of articulation or pivot axis 33 fixed.
- Fig. 4 illustrates the two jaws 19, 21 separated from each other.
- To the joint 32 include annular flattened portions 34, 35 on the jaws 19, 21. These sections have annular planar surfaces 36, 37, which serve as thrust bearing surfaces.
- the annular planar surface 36 is bounded on the inside by a tubular extension 38, which has an annular planar bearing surface 39 on its end face.
- the tube extension 38 of the jaw 19 is associated with an opening 40 whose diameter matches the diameter of the tube extension 38 to a small clearance.
- the tube extension 38 can thus serve as a radial bearing.
- the jaws 19 or 21 may be provided with an annular annular groove 41 concentric with the tube extension 38 and the aperture 40, respectively, and the corresponding other of the jaws 19, 21 with a mating shape such as an annular rib 42 be.
- the jaw 21 has at its portion 35 an outer, for example, annular bag 44, the bottom 65 is slightly below the support surface 39 or at the same level with the same. In other words, the thickness of the portion 35 in the region of the pocket 44 is approximately equal to the height of the tube extension 38 or slightly less than this.
- the opening 40 is penetrated by the tubular shaft 45 of a hollow rivet 46, whose preferably disk-shaped flat head 48 has a flat annular surface on the side facing the bearing surface 39. This lies on the support surface 39 and serves as far as itself as a support surface. It also protrudes radially beyond the bearing surface 39 and thus forms an axial bearing surface 49 for the clamping jaw 21.
- the preferably flat outer surface 50 of the head 48 just ends with the lateral surface 43.
- the shank 45 of the hollow rivet 46 is crimped at its edge opposite the outer surface 50 into a corresponding recess of the clamping jaw 19.
- a recess can be formed for example by a conical surface 51, with which the opening 40 widens outwards.
- the conical surface 51 instead of the conical surface 51, other surface shapes, such as steps or the like may be provided.
- the tube extension 38 forms a spacer, which holds the head 48 of the hollow rivet 46 and thus its thrust bearing surface 49 at a defined distance from the thrust bearing surface 36.
- the distance is measured parallel to the hinge axis 33. This distance is slightly greater than the thickness of the portion 35 in the same direction and at the same location.
- the annular space between the thrust bearing surface 36 and the axial bearing surface 49 oriented parallel to it forms a bearing pocket for the clamping jaw 21.
- the spacer in the form of the tubular extension 38 is here an integral part of the jaw 19. It allows in conjunction with the Hohlniet46 efficient simple and reliable production of grippers 11 in high quality.
- the jaws 19, 21 can be easily pivoted against each other.
- the arrangement of the thrust bearing surfaces 36, 49 ensure the desired low clearance.
- the radial bearing is taken over by the tube extension 38 and optionally in addition or alternatively by the annular groove 41 and the rib 42.
- a special screw 52 is provided instead of the hollow rivet 46, the threaded bearing shaft 53 is screwed into the threaded opening 40.
- the screw 52 can additionally glued to the jaws 19 or be secured against rotation at a point 54 by plastic deformation, a weld or the like.
- a hollow rivet 46 is provided, which forms a guide pocket for the other clamping jaw 21 together with a clamping jaw 19.
- the guide pocket is defined between two thrust bearing surfaces 36, 49.
- a spacer defines the distance between the two thrust bearing surfaces 36, 49. He has for this purpose a contact surface 39. This is preferably a conical surface 51 opposite.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
- Auxiliary Weaving Apparatuses, Weavers' Tools, And Shuttles (AREA)
- Moulding By Coating Moulds (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Die Erfindung betrifft einen Greifer für eine Axminster-Webmaschine.The invention relates to a gripper for an Axminster loom.
Zur Herstellung von Teppichen und anderen Flortextilien ist das Axminster-Weben bekannt. Die prinzipielle Funktion solcher Webmaschinen ist der Literaturstelle "Carpet Manufacture" (Teppichherstellung Geoffrey H. Crawshaw, WRONZ Developments, Private Bag 4749, Christchurch New Zealand) zu entnehmen. Die Webmaschine arbeitet mit drei Kettfadengruppen, denen entsprechende Webschäfte zugeordnet sind. Mittels auf einer Barre sitzender Greifer werden vorgeschnittene Florfäden zwischen die Kettfäden gereicht und dort mittels Schussfäden verankert.For the production of carpets and other pile textiles the Axminster weaving is known. The principle function of such weaving machines can be found in the reference "Carpet Manufacture" (carpet production Geoffrey H. Crawshaw, WRONZ Developments, Private Bag 4749, Christchurch New Zealand). The weaving machine works with three warp thread groups, which are assigned corresponding healds. By means of a gripper sitting on a bar, pre-cut pile threads are made passed between the warp threads and anchored there by means of weft threads.
Axminster Webmaschinen stellen hohe Anforderungen an die Präzision des Betriebs der Greifer. Die auf einer Barre sitzenden gleichzeitig arbeitenden Greifer müssen die Fäden präzise ergreifen und zwischen die Kettfäden reichen können. Die Greifer müssen dabei relativ schmal ausgebildet werden, damit sie zwischen die Kettfäden passen. Die Greifer werden dabei üblicherweise jeweils von zwei sehr schmalen Klemmbacken gebildet, die durch einen Niet zusammengehalten werden. Der Niet bildet ein Gelenk, das ein Öffnen und Schließen der von den Klemmbacken gebildeten Zange gestattet.Axminster weaving machines place high demands on the precision of the operation of the grippers. The co-operating grippers sitting on a bar must be able to grasp the threads precisely and pass between the warp threads. The grippers must be made relatively narrow so that they fit between the warp threads. The grippers are usually each formed by two very narrow jaws, which are held together by a rivet. The rivet forms a hinge which permits opening and closing of the pliers formed by the jaws.
Ein solcher Greifer ist beispielsweise aus der
Die Anordnung ist in mehrerlei Hinsicht kritisch, denn der gebördelte Bereich des rohrförmigen Fortsatzes ist zugleich Niet und Lagerung.The arrangement is critical in several respects, because the flanged portion of the tubular extension is at the same time rivet and storage.
Die
Aus der
Es ist Aufgabe der Erfindung, einen verbesserten Greifer für eine Axminster-Webmaschine anzugeben.It is an object of the invention to provide an improved gripper for an Axminster loom.
Diese Aufgabe wird mit dem Greifer nach Anspruch 1 gelöst:This object is achieved with the gripper according to claim 1:
Der erfindungsgemäße Greifer weist zwei Klemmbacken auf, die durch ein Gelenk miteinander verbunden sind. Den ersten Klemmbacken sind zur Ausbildung des Gelenks zwei Axiallagerflächen zugeordnet, die durch einen Abstandshalter auf Abstand zueinander gehalten sind. Der Abstandshalter kann als separates Bauelement oder als Bestandteil einer der Klemmbacken ausgebildet sein. Vorzugsweise ist zumindest eine der Axiallagerflächen unmittelbar an dem Klemmbacken ausgebildet, während die andere der beiden Axiallagerflächen an einem gesonderten Element ausgebildet ist.The gripper according to the invention has two clamping jaws, which are connected to each other by a hinge. The first jaws are assigned to the formation of the joint, two thrust bearing surfaces, which are held by a spacer at a distance from each other. The spacer may be formed as a separate component or as part of one of the jaws. Preferably, at least one of the thrust bearing surfaces is formed directly on the jaw, while the other of the two thrust bearing surfaces is formed on a separate element.
Durch den Abstandshalter wird das Axialspiel des zweiten Klemmbackens definiert festgelegt. Insbesondere wird dieses Axialspiel nicht von der Verbindungstechnik beeinflusst, mittels derer das Halteelement mit dem ersten Klemmbacken verbunden ist. Beispielsweise können dazu formschlüssige Verbindungen wie z.B. Bördelverbindungen, Nietverbindungen, Schraubverbindungen etc. und/oder Stoffschlüssige Verbindungen wie z.B. Laserschweißverbindungen, Klebeverbindungen und ähnliches dienen.By the spacer is the axial play of the second Jaw defined defines. In particular, this axial play is not influenced by the connection technique, by means of which the holding element is connected to the first clamping jaw. For example, form-fitting connections such as crimp connections, rivet connections, screw connections etc. and / or cohesive connections such as laser welding connections, adhesive connections and the like can serve this purpose.
Der Abstandshalter kann ein ring- oder rohrförmiger Fortsatz des ersten Klemmbackens sein. Dieser weist an seiner Stirnfläche dann eine Auflagefläche auf, an der das Halteelement seine Anlage findet. Das Halteelement erstreckt sich durch eine Öffnung, die von der Auflagefläche umschlossen wird und ist in dieser Öffnung gesichert. Dazu können die oben genannten Verbindungstechniken einzeln oder in Verbindung miteinander dienen.The spacer may be an annular or tubular extension of the first jaw. This then has on its end face on a support surface on which the holding element finds its investment. The holding element extends through an opening which is enclosed by the support surface and is secured in this opening. For this purpose, the above-mentioned joining techniques may be used individually or in conjunction with each other.
Das Halteelement wird von einem vorzugsweise scheibenförmigen Kopf gebildet, der eine Ringfläche aufweist, die auf der Auflagefläche aufliegt und diese in Radialrichtung überragt. Der überragende Teil bildet dann die Axiallagerfläche für den zweiten Klemmbacken. Der Kopf des Halteelements liegt dabei vorzugsweise in einer Ausnehmung des zweiten Klemmbackens, so dass der Greifer im Wesentlichen ebene Seitenflächen ohne Erhebungen aufweist. Der Greifer ist dadurch im Wesentlichen glatt. Das Halteelement schließt mit zumindest einem, vorzugsweise beiden Klemmbacken, insbesondere mit deren Flachseiten, bündig ab. Der Greifer kann dadurch leicht zwischen die Kettfäden greifen, ohne an den Kettfäden hängen zu bleiben und diese zu beschädigen.The holding element is formed by a preferably disc-shaped head, which has an annular surface which rests on the support surface and projects beyond it in the radial direction. The towering part then forms the thrust bearing surface for the second jaw. The head of the retaining element is preferably located in a recess of the second jaw, so that the gripper has substantially flat side surfaces without elevations. The gripper is characterized essentially smooth. The holding element closes flush with at least one, preferably both jaws, in particular with their flat sides. The gripper can thus easily grip between the warp threads, without hanging on the warp threads and damage them.
Der Abstandshalter weist vorzugsweise einen zylindrischen Außenumfang auf, der als Lagerfläche (Radiallagerfläche) für den zweiten Klemmbacken dienen kann. Damit lässt sich eine durchaus ausreichende Lagerung und Präzision erzielen. Es kann jedoch vorteilhaft sein, die Radiallagerung zu unterstützen, indem an einem der Klemmbacken eine Nut oder sonstige Vertiefung angebracht wird, die sich um die Scharnierachse krümmt. Die Nut kann bogenförmig oder ringförmig ausgebildet sein. An dem anderen Klemmbacken können entsprechend ein oder mehrere Vorsprünge vorgesehen sein, die in diese Nut greifen und in dieser gleiten. Der Vorsprung kann als gebogene Rippe oder als geschlossene ringförmige Rippe ausgebildet sein. Die Flanken der bogen- oder ringförmigen Nut und die Flanken der bogen- oder ringförmigen Rippe können eine Radiallagerung bilden.The spacer preferably has a cylindrical outer circumference, which can serve as a bearing surface (radial bearing surface) for the second jaw. This can be a quite sufficient storage and precision. However, it may be advantageous to support the radial bearing by attaching to one of the jaws a groove or other depression that curves around the hinge axis. The groove may be arcuate or annular. On the other jaws can be provided correspondingly one or more projections which engage in this groove and slide in this. The projection may be formed as a curved rib or as a closed annular rib. The flanks of the arcuate or annular groove and the flanks of the arcuate or annular rib can form a radial bearing.
Die nachfolgende Beschreibung zeigt verschiedene Ausführungsformen der Erfindung, worauf sich weitere vorteilhafte Details und Einzelheiten erschließen. Die Beschreibung beschränkt sich auf wesentliche Aspekte der Erfindung und sonstiger Gegebenheiten. Die Zeichnung ist ergänzend heranzuziehen. Unteransprüche sind auf vorteilhafte Details gerichtet. Es zeigen:
-
Fig. 1 eine Axminster-Webmaschine in stark schematisierter Darstellung. -
Fig. 2 die Axminster-Webmaschine nachFig. 1 in einer ausschnittsweisen Darstellung zur Veranschaulichung der Funktion ihrer Greifereinrichtung. -
Fig. 3 einen Greifer, der Axminster-Webmaschine nachFig. 1 und2 in gesonderter Darstellung in Seitenansicht. -
Fig. 4 den Greifer nachFig. 3 mit voneinander getrennten Klemmbacken zur Veranschaulichung seines Gelenks in Seitenansicht der Klemmbacken. -
Fig. 5 den Greifer in einer Schnittdarstellung seines Gelenks in ausschnittsweiser Darstellung. -
Fig. 6 weitere Ausführungsform des Greifers in Schnittdarstellung.
-
Fig. 1 an Axminster loom in a highly schematic representation. -
Fig. 2 the Axminster loom behindFig. 1 in a fragmentary illustration to illustrate the function of their gripper device. -
Fig. 3 a gripper, the Axminster loom behindFig. 1 and2 in a separate representation in side view. -
Fig. 4 the gripper afterFig. 3 with separate jaws to illustrate his joint in side view of the jaws. -
Fig. 5 the gripper in a sectional view of his joint in a sectional view. -
Fig. 6 further embodiment of the gripper in sectional view.
In
Zum Einsetzen vorgeschnittener Florfäden 9 in das Gewebe dient eine Greifereinrichtung 10 mit mehreren Greifern 11. Die Greifereinrichtung 10 mit den Greifern 11 ist zwischen einer Position A, in der sie Florfäden 9 in das Gewebe einsetzt und einer Position B beweglich, in der sie Florfäden von einem Fadenträger 12 abholt. Der Fadenträger 12 kann mehrere Fäden 13, 14 unterschiedlicher Farbe bereithalten und so gesteuert sein, dass jeweils der gewünschte Faden zum Beispiel mit einer Muster abhängig ausgewählten Farbe abgeholt wird. Ein Messerträger 15 weist ein oder mehrere Messer auf, um von dem Florfaden, dessen Ende die Greifereinrichtung hält, ein Stück einer gewünschten Länge abzuschneiden.The
Die Greifer 11 sind auf einer Barre 16 gehalten, die eine große Zahl weiterer gleich ausgebildeter Greifer trägt. Diese sind in
Zu der Axminster-Webmaschine 1 gehört außerdem noch eine Anschlagbarre mit entsprechenden Lamellen 18, wie sie beispielsweise aus
Der Greifer 11 weist gemäß
Der Klemmbacken 21 weist für die Steuerwelle 17 an einem Ende 27 ein Kupplungsprofil 26 auf. Das andere Ende 28 des Klemmbackens 21 ist wiederum keilförmig ausgebildet und mit einer Greiferfläche 29 versehen. Die Enden 24, 28 der Klemmbacken 19, 21 bilden einen spitz zulaufenden Schnabel 31. Zur gelenkigen Lagerung der Klemmbacken 19, 21 aneinander dient ein Gelenk 32. Das Gelenk 32 legt eine quer zu den Klemmbacken 19, 21 und somit in
Der weitere Aufbau des Gelenks 32 ergibt sich aus
Der Klemmbacken 21 weist an seinem Abschnitt 35 eine außenliegende, beispielsweise kreisringförmige Tasche 44 auf, deren Boden 65 geringfügig unterhalb der Auflagefläche 39 oder auf gleicher Höhe mit derselben liegt. Mit anderen Worten, die Dicke des Abschnitts 35 ist im Bereich der Tasche 44 ungefähr gleich groß wie die Höhe des Rohrfortsatzes 38 oder ganz geringfügig geringer als diese.The
Die Öffnung 40 wird im vorliegenden Ausführungsbeispiel von dem rohrförmigen Schaft 45 eines Hohlniets 46 durchsetzt, dessen vorzugsweise scheibenförmiger flacher Kopf 48 an der der Auflagefläche 39 zugewandten Seite eine ebene Ringfläche aufweist. Diese liegt auf der Auflagefläche 39 und dient soweit selbst als Auflagefläche. Sie steht außerdem radial über die Auflagefläche 39 über und bildet insoweit eine Axiallagerfläche 49 für den Klemmbacken 21. Die vorzugsweise ebene Außenfläche 50 des Kopfes 48 schließt eben mit der Seitenfläche 43 ab.In the present exemplary embodiment, the
Der Schaft 45 des Hohlniets 46 ist an seinem der Außenfläche 50 gegenüberliegenden Rand in eine entsprechende Ausnehmung des Klemmbackens 19 gebördelt. Eine solche Ausnehmung kann beispielsweise durch eine Kegelfläche 51 gebildet werden, mit der sich die Öffnung 40 nach außen hin erweitert. Anstelle der Kegelfläche 51 können auch andere Flächenformen, wie beispielsweise Stufen oder dergleichen vorgesehen werden.The
Wie ersichtlich bildet der Rohrfortsatz 38 einen Abstandshalter, der den Kopf 48 des Hohlniets 46 und somit dessen Axiallagerfläche 49 in definiertem Abstand zu der Axiallagerfläche 36 hält. Der Abstand wird dabei parallel zu der Gelenkachse 33 gemessen. Dieser Abstand ist geringfügig größer als die Dicke des Abschnitts 35 in gleicher Messrichtung und an gleicher Stelle. Der ringförmige Zwischenraum zwischen der Axiallagerfläche 36 und der zu ihr parallel orientierten Axiallagerfläche 49 bildet eine Lagertasche für den Klemmbacken 21.As can be seen, the
Der Abstandshalter in Gestalt des Rohrfortsatzes 38 ist hier einstückiger Bestandteil des Klemmbackens 19. Er ermöglicht in Verbindung mit dem Hohlniet46 eine effiziente einfache und prozesssichere Herstellung von Greifern 11 in hoher Qualität. Die Klemmbacken 19, 21 können gegeneinander leicht verschwenkt werden. Die Anordnung der Axiallagerflächen 36, 49 sichern dabei das gewünschte geringe Spiel. Die Radiallagerung wird von dem Rohrfortsatz 38 sowie gegebenenfalls ergänzend oder alternativ von der Ringnut 41 und der Rippe 42 übernommen.The spacer in the form of the
Die Erfindung kann auf vielfältige andere Weise verwirklicht werden. Ein Beispiel zeigt
Als Halteelement ist hier anstelle des Hohlniets 46 eine spezielle Schraube 52 vorgesehen, deren Gewinde tragender Schaft 53 in die mit Gewinde versehene Öffnung 40 eingeschraubt ist. Zur Verdrehsicherung kann die Schraube 52 zusätzlich mit dem Klemmbacken 19 verklebt oder an einer Stelle 54 durch plastische Verformung, einen Schweißpunkt oder dergleichen drehfest gesichert sein.As a holding element here a
Bei dem erfindungsgemäßen Greifer 11 ist ein Hohlniet 46 vorgesehen, der zusammen mit einem Klemmbacken 19 eine Führungstasche für den anderen Klemmbacken 21 bildet. Die Führungstasche ist zwischen zwei Axiallagerflächen 36, 49 festgelegt. Ein Abstandshalter legt dabei den Abstand zwischen den beiden Axiallagerflächen 36, 49 fest. Er weist dazu eine Anlagefläche 39 auf. Dieser liegt vorzugsweise eine konische Fläche 51 gegenüber. Nach dem Zusammenfügen der beiden Klemmbacken 19, 21 und dem Einsetzen des Hohlniets 46 wird dessen Schaft vorzugsweise so umgeformt, dass dieser an der konischen Fläche 51 anliegt.In the
Bei dieser Anordnung ergibt sich das zur leichtgängigen Bewegung des Greifers 11 erforderliche Spiel aus dem Unterschied zwischen dem Abstand der Auflagefläche 39 des Abstandshalters 38 und der Axialfläche 36 des ersten Klemmbackens und der Höhe des Abschnitts 35 des zweiten Klemmbackens, der in der Führungstasche gelagert ist. Es besteht somit keine Gefahr, dass eine zu starke Umformung des Hohlniets zur Greiferschwergängigkeit führen würde.In this arrangement, this results in the smooth movement of the
- 11
- Axminster-WebmaschineAxminster loom
- 2, 3, 42, 3, 4
- Kettfädenwarp
- 55
- Schussfädenwefts
- 6, 7, 86, 7, 8
- Webschäfteheald
- 99
- Florfadenpile yarn
- 1010
- GreifereinrichtungGripper device
- 1111
- Greifergrab
- 1212
- Fadenträgerthread carrier
- 13, 1413, 14
- Fädenthreads
- 1515
- Messerträgerblade carrier
- 1616
- Barrebar
- 1717
- Steuerwellecontrol shaft
- 1818
- Lamellenslats
- 19, 2119, 21
- Klemmbackenjaws
- 2222
- EndeThe End
- 2323
- Befestigungsprofilmounting profile
- 2424
- EndeThe End
- 2525
- Greiferflächegripper surface
- 2626
- Kupplungsprofilcoupling profile
- 27, 2827, 28
- EndeThe End
- 2929
- Greiferflächegripper surface
- 3131
- Schnabelbeak
- 3232
- Gelenkjoint
- 3333
- Gelenkachsejoint axis
- 34, 3534, 35
- abgeflachte kreisringförmige Abschnitteflattened circular sections
- 36, 3736, 37
- Planflächen/ AxiallagerflächenPlane surfaces / thrust bearing surfaces
- 3838
- Rohrfortsatz, der als Abstandshalter dientPipe extension, which serves as a spacer
- 3939
- Auflageflächebearing surface
- 4040
- Öffnungopening
- 4141
- Ringnutring groove
- 4242
- Ripperib
- 43, 4743, 47
- Seitenflächeside surface
- 4444
- Taschebag
- 4545
- Schaftshaft
- 4646
- Hohlnietrivet
- 4848
- Kopfhead
- 4949
- Axiallagerflächethrust bearing
- 5050
- Außenflächeouter surface
- 5151
- Kegelflächeconical surface
- 5252
- Schraubescrew
- 5353
- Schaftshaft
- 5454
- StelleJob
- 5555
- Bördelrandbeaded
- 5656
- Lochscheibeperforated disc
- 5757
- Ring, der als Abstandshalter dientRing that serves as a spacer
- 6565
- Bodenground
Claims (15)
- Gripper (11) for an Axminster loom,
with a first and a second clamping jaw (19, 21), which respectively have a gripping surface (25, 29) for clamping a pile thread (9),
with a joint (32), which connects the two clamping jaws (19, 31) to one another to be able to pivot, thus defining a pivot axis (33),
wherein the first clamping jaw (19) has at least one axial bearing surface (36) to form the joint (32),
with a spacer (38, 57), which has a supporting surface (39),
with a holding element (46, 52, 56), which lies on the supporting surface (39) or is connected to the spacer (57) and which has a plate-shaped or disc-shaped head (48, 56) or is formed by such, on which an axial bearing surface (49) is configured, which is held by the spacer (38, 57) at a fixed distance from the axial bearing surface (36) of the first clamping jaw (19),
wherein the second clamping jaw (21) is held between the axial bearing surfaces (36, 49),
characterised in that the holding element extends through an opening (40) enclosed by the supporting surface (39) and is secured in this opening (40). - Gripper according to claim 1, characterised in that the spacer (38) is an integral component of the first clamping jaw (19).
- Gripper according to claim 1, characterised in that the spacer (38) is a tubular extension of the first clamping jaw (19).
- Gripper according to claim 1, characterised in that the head (48, 56) engages into a recess (44) of the second clamping jaw (21).
- Gripper according to claim 4, characterised in that the holding element (46) lies with its head (48) on the support surface (39).
- Gripper according to claim 1, characterised in that a radial bearing surface for support of the second clamping jaw (21) is configured on the spacer (38, 57).
- Gripper means according to claim 1, characterised in that the holding element (46) is configured as a rivet.
- Gripper according to claim 1, characterised in that the holding element (46) terminates flush with both clamping jaws (19, 21).
- Gripper according to claim 1, characterised in that the holding element is configured as a screw (52).
- Gripper according to claim 1, characterised in that the holding element (46, 52, 56) is positively connected to the clamping jaw (19).
- Gripper according to claim 1, characterised in that the holding element (46, 52, 56) is integrally connected to the clamping jaw (19).
- Gripper according to claim 1, characterised in that configured on one of the clamping jaws (19, 21) is at least one projection (42), which engages into an appropriate recess (41) of the other clamping jaw (21, 19).
- Gripper according to claim 12, characterised in that the recess (41) is an arc-shaped or ring-shaped groove.
- Gripper according to claim 12, characterised in that the projection (42) is an arc-shaped or ring-shaped rib.
- Gripper according to claim 13, characterised in that the groove (41) is arranged concentrically to the joint (32).
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PT08103301T PT2107145E (en) | 2008-04-01 | 2008-04-01 | Gripper for an axminster loom |
ES08103301T ES2376137T3 (en) | 2008-04-01 | 2008-04-01 | CLAMPS FOR TELAR AXMINSTER. |
PL08103301T PL2107145T3 (en) | 2008-04-01 | 2008-04-01 | Gripper for an Axminster loom |
DK08103301.1T DK2107145T3 (en) | 2008-04-01 | 2008-04-01 | Grips for Axminster weaving machine |
AT08103301T ATE530686T1 (en) | 2008-04-01 | 2008-04-01 | GRAPPLE FOR AXMINSTER WEAVING MACHINE |
EP08103301A EP2107145B1 (en) | 2008-04-01 | 2008-04-01 | Gripper for an Axminster loom |
CN2009101340847A CN101550630B (en) | 2008-04-01 | 2009-03-31 | Gripper for an axminster loom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08103301A EP2107145B1 (en) | 2008-04-01 | 2008-04-01 | Gripper for an Axminster loom |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2107145A1 EP2107145A1 (en) | 2009-10-07 |
EP2107145B1 true EP2107145B1 (en) | 2011-10-26 |
Family
ID=39930584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08103301A Not-in-force EP2107145B1 (en) | 2008-04-01 | 2008-04-01 | Gripper for an Axminster loom |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP2107145B1 (en) |
CN (1) | CN101550630B (en) |
AT (1) | ATE530686T1 (en) |
DK (1) | DK2107145T3 (en) |
ES (1) | ES2376137T3 (en) |
PL (1) | PL2107145T3 (en) |
PT (1) | PT2107145E (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE1019379A3 (en) * | 2010-06-21 | 2012-06-05 | Wiele Michel Van De Nv | DEVICE AND METHOD FOR CUTTING THE POOL YARN TO BE WOVEN IN AN AXMINSTER WEAVING MACHINE. |
CN107287743B (en) * | 2016-04-13 | 2020-11-03 | 米歇尔.范德威尔公司 | Yarn gripper for gripper shuttle loom |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1816938A (en) | 1930-01-23 | 1931-08-04 | Worcester Loom Works | Gripper for tuft weaving looms |
GB1353153A (en) | 1970-05-26 | 1974-05-15 | Brintons Ltd | Yarn grippers for carpet looms |
DE102004061166B4 (en) * | 2004-12-16 | 2006-11-16 | Groz-Beckert Kg | Gripping device for an Axminster loom |
-
2008
- 2008-04-01 PT PT08103301T patent/PT2107145E/en unknown
- 2008-04-01 DK DK08103301.1T patent/DK2107145T3/en active
- 2008-04-01 ES ES08103301T patent/ES2376137T3/en active Active
- 2008-04-01 PL PL08103301T patent/PL2107145T3/en unknown
- 2008-04-01 EP EP08103301A patent/EP2107145B1/en not_active Not-in-force
- 2008-04-01 AT AT08103301T patent/ATE530686T1/en active
-
2009
- 2009-03-31 CN CN2009101340847A patent/CN101550630B/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
PL2107145T3 (en) | 2012-03-30 |
CN101550630A (en) | 2009-10-07 |
ES2376137T3 (en) | 2012-03-09 |
CN101550630B (en) | 2013-05-22 |
DK2107145T3 (en) | 2011-11-21 |
EP2107145A1 (en) | 2009-10-07 |
PT2107145E (en) | 2012-01-09 |
ATE530686T1 (en) | 2011-11-15 |
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