EP0557723A1 - Inserting tapes or rods guiding device for looms - Google Patents

Inserting tapes or rods guiding device for looms Download PDF

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Publication number
EP0557723A1
EP0557723A1 EP93101034A EP93101034A EP0557723A1 EP 0557723 A1 EP0557723 A1 EP 0557723A1 EP 93101034 A EP93101034 A EP 93101034A EP 93101034 A EP93101034 A EP 93101034A EP 0557723 A1 EP0557723 A1 EP 0557723A1
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EP
European Patent Office
Prior art keywords
gripper
guide
shed
shaft
reed
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.)
Granted
Application number
EP93101034A
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German (de)
French (fr)
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EP0557723B1 (en
Inventor
Stephan Dipl.-Ing. Arndt
Rainer Dipl.-Ing. Finger (Fh)
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Lindauer Dornier GmbH
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Lindauer Dornier GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from DE4206213A external-priority patent/DE4206213A1/en
Priority claimed from DE4206212A external-priority patent/DE4206212A1/en
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP0557723A1 publication Critical patent/EP0557723A1/en
Application granted granted Critical
Publication of EP0557723B1 publication Critical patent/EP0557723B1/en
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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

  • This type of gripper guide has the disadvantage that the guide teeth only dip under the warp threads relatively shortly before the blade stop. There is therefore a risk of irregularities, such as stripes, occurring at these points in the tissue. In addition, a large number of relatively closely spaced guide teeth are necessary to guide such a flexible belt gripper.
  • a gripper with a guide wood arranged on the reed side the task of which is to provide the gripper with a stabilizing guide on the reed during the weft insertion into the shed.
  • the gripper with guide wood glides along the reed during its alternating forward and backward movement.
  • the invention is based on the aforementioned known solutions, the task of using a flexible band or a rigidly designed gripper bar for the purpose of thread transfer in the loom center to move towards each other gripper by suitably trained guides from gripper-damaging contacts and at the same time protect the reed rods from frictional wear to protect.
  • the advantage of the solution according to the invention is that the guide levers can be swiveled under the warp threads of the lower compartment shortly after the weft thread transfer in the center.
  • the timing of the passage of the guide lever through the lower compartment is chosen so that it is long enough before the striking of the Weft thread or its binding in the weaving point of the fabric, the guide levers are pivoted out of the shed. Therefore, the warp threads of the lower shed have enough time to return to their original position until the weft thread strikes than is the case with the guides according to the prior art.
  • these guides only dive under the sub-compartment when the leaf stops.
  • the solution according to the invention is not only provided for the gripper guidance in the area of the weft transfer; it can also be arranged over the entire width of the fabric. This means that it is possible that the grippers are guided up to the weft thread transfer before the entry, but in particular with the entry into the shed, and that the guide levers are pivoted out of the lower compartment after the weft thread transfer. This means that in a further embodiment of the invention it is conceivable not only to guide the grippers 1 themselves but also the organs carrying them in accordance with the features of the invention.
  • the guide mechanism consisting of lever shaft 3, bearing 4 and guide lever 5, and its drive, consisting of coupling 7, roller lever 9, roller 10 and eccentric 12, in the range of motion to shift the gripper bars 2.
  • the grippers 1 are not guided even in the area of the weft transfer, but the rod 2 carrying the gripper 1 or, in the case of a belt-guided gripper, its guide belt.
  • the drive of the guide mechanism is not shown in detail here; this can be found in DE-PS 17 10 292 described in the prior art.
  • Figure 1 shows on both sides of the center transfer of the weft thread shown with a dash-dotted line, the grippers 1, which are carried here for example by a gripper bar 2.
  • the grippers 1 which are carried here for example by a gripper bar 2.
  • at least two guide levers 5, which are arranged at a distance from one another, are connected in a rotationally fixed manner to the lever shaft 3, which is rotatably received in the bearings 4.
  • the lever shaft 3 is in turn connected to a rocker 6 in a rotationally fixed connection (FIG. 2).
  • a coupling 7 At the free end of the rocker 6 engages a coupling 7, which is connected to a drive as it is known from DE-PS 17 10 292.
  • the other end of the coupling 7 is connected to a roller lever 9, which is non-rotatably connected to the shutter shaft 8, the roller 10 of which scans an eccentric 12, which is non-rotatably connected to the drive shaft 11.
  • the control of the guide lever 5 takes place in such a way that when the eccentric 12 rotates, the guide lever 5 is moved by the warp threads of the lower compartment 13 and the grippers 1 slide on the gripper guide surface 14.
  • FIG. 2 shows a guide lever 5 resting on the guide surface 14a of the hook 1. This is a position as it is present immediately before the weft thread is transferred.
  • the gripper guide surface 14a is formed here on a thrust piece 14 which is firmly connected to the gripper.
  • the gripper 1 On the reed side, the gripper 1 carries a guide wood 15 which opposes it Supports reed 16 and simultaneously slides on reed 16.
  • FIG. 3 shows a gripper guide surface 17a is provided on a thrust piece 17 connected to the gripper 1 on the reed side. With such a gripper guide, the guide wood 15 connected to the gripper can be dispensed with.
  • the guide levers 5 are arranged on the lever shaft 3 in a rotationally fixed manner. The control takes place in the manner described for FIG. 1.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)

Abstract

In gripper looms with a transfer of the weft thread in the middle of the shed, there is the fundamental problem that the elements inserting the weft thread, that is to say the grippers, have to be guided into the shed in such a way that the thread transfer in the middle of the shed takes place without colliding contact of the two gripper heads. …<??>This is achieved, according to the invention, in that, among other things, each gripper (1) has, at least on one side of its longitudinal extension, an additional guide face (14a, 17a) which is temporarily connected in a slide-guiding manner to guide levers (5) pivotable into and out of the lower shed (13) under control. …<IMAGE>…

Description

Bei Greiferwebmaschinen mit Übergabe des Schußfadens in Webfachmitte besteht grundsätzlich das Problem, daß die schußfadeneintragenden Elemente, also die Greifer, so in das Webfach hineingeführt werden müssen, daß die Fadenübergabe in Fachmitte ohne kollidierende Berührungen der beiden Greiferköpfe erfolgt.In the case of rapier weaving machines with the transfer of the weft thread in the center of the shed there is basically the problem that the elements which insert the weft thread, that is to say the grippers, have to be introduced into the shed in such a way that the thread transfer takes place in the center of the shed without colliding touches of the two rapier heads.

Bekannt sind bisher zwei grundsätzlich verschiedene Möglichkeiten dieses Problem zu lösen.
Bei den meisten Bandgreifermaschinen werden sehr leichte, flexible Kunststoffbänder, die an ihrem einen Ende einen Greiferkopf tragen, über die ganze Gewebebreite in sogenannten Führungszähnen geführt.
Die Führungszähne sind so angeordnet, daß sie während des Greiferlaufes von unten durch die Kettfäden des Unterfaches greifen. Sie sind fest mit der Blattleiste verbunden, die das Webblatt trägt. Bei Blattanschlag tauchen diese Führungszähne unter die Kettfäden des Unterfaches.
Bekannt sind diese Lösungen aus der europäischen Patentschrift 0 204 274 und aus der europäischen Patentschrift 0 402 285.So far, two fundamentally different ways of solving this problem are known.
In most belt gripper machines, very light, flexible plastic belts, which have a gripper head at one end, are guided over the entire width of the fabric in so-called guide teeth.
The guide teeth are arranged so that they grip from below through the warp threads of the lower compartment during the gripper run. They are firmly connected to the leaf bar that carries the reed. When the leaf stops, these guide teeth dip under the warp threads of the lower compartment.
These solutions are known from European patent specification 0 204 274 and from European patent specification 0 402 285.

Diese Art der Greiferführung hat den Nachteil, daß die Führungszähne erst verhältnismäßig kurz vor dem Blattanschlag unter die Kettfäden tauchen.
Deshalb besteht die Gefahr, daß an diesen Stellen im Gewebe Unregelmäßigkeiten, wie z.B. Streifen, entstehen. Außerdem sind sehr viele verhältnismäßig dicht stehende Führungszähne notwendig, um einen solchen flexiblen Bandgreifer zu führen.This type of gripper guide has the disadvantage that the guide teeth only dip under the warp threads relatively shortly before the blade stop.
There is therefore a risk of irregularities, such as stripes, occurring at these points in the tissue. In addition, a large number of relatively closely spaced guide teeth are necessary to guide such a flexible belt gripper.

Wünschenswert ist, daß die Führung der Greifer sehr sicher auch bei breiten und hochtourig laufenden Webmaschinen gewährleitet werden kann.
Eine andere Möglichkeit, die Greifer durch das Webfach zu führen besteht darin, die beiden Greiferbänder wesentlich biegesteifer auszuführen. Dazu ist bekannt, die Ladensohle, über die auch die Kettfäden des Unterfaches laufen, als Gleitführung für die Greifer zu verwenden.
Nach hinten stützen sich die Greiferköpfe ggf. über ein mit ihnen verbundenes Führungsstück am Webblatt ab. In Richtung des Blattanschlages und nach oben besteht nur eine geringe oder gar keine Führung.It is desirable that the guidance of the grippers can be guaranteed very reliably even with wide and high-speed weaving machines.
Another way of guiding the grippers through the shed is to make the two gripper belts much more rigid. For this purpose, it is known to use the sole of the shop, over which the warp threads of the lower compartment also run, as a sliding guide for the grippers.
If necessary, the rapier heads are supported on the reed by a guide piece connected to them. There is little or no guidance in the direction of the blade stop and upwards.

Diese Art der Führung hat den Nachteil, daß die Greifer durch die Schwingungen der Webmaschine relativ leicht aus ihrer Bahn gebracht werden können. Dieses Problem wird um so gravierender, je breiter die Webmaschine ist und je schneller sie läuft.This type of guidance has the disadvantage that the grippers can be moved out of their path relatively easily by the vibrations of the weaving machine. The wider the weaving machine and the faster it runs, the more serious this problem becomes.

Nach der DE-PS 17 10 292 ist bekannt, daß die Steuerhebel einer Einrichtung zur positiv gesteuerten Schußfadenübergabe durch die Kettfäden des Unterfaches greifen. Dabei entstehen aber keine Unregelmäßigkeiten im Gewebe, wie z.B. Streifen, weil diese Steuerhebel sofort nach der Übergabe des Schußfadens, also lange vor dem Blattanschlag, aus dem Unterfach herausgeführt werden.
Des weiteren ist erwähnenswert, daß eine sichere Führung der Greifer bzw. deren Bänder und Stangen eigentlich nur solange erforderlich ist, bis die Schußfadenübergabe ohne Kollision der beiden Greifer erfolgt ist. Danach, also bei der Rückführung der Greifer, spielen geringe Abweichungen von der Laufbahn der Greifer keine Rolle mehr.
In der DE-PS 17 10 292 wird zwar schon davon gesprochen, daß die Steuerhebel neben ihrer Funktion zur Stauerung des Greifer-Klemmhebels zusätzlich ein Zentrieren bzw. Fixieren der Lage der Greiferstange bei der Fadenübergabe bzw.-übernahme realisieren. Eine Lösung hierzu wird jedoch nicht aufgezeigt.According to DE-PS 17 10 292 it is known that the control lever of a device for positively controlled weft transfer through the warp threads of the lower pocket. However, there are no irregularities in the fabric, such as stripes, because these control levers are led out of the lower compartment immediately after the weft thread has been transferred, that is, long before the sheet stop.
It is also worth mentioning that the grippers or their belts and rods are only required to be guided securely until the weft transfer has taken place without the two grippers colliding. After that, i.e. when the grippers are returned, slight deviations from the gripper's career no longer play a role.
In DE-PS 17 10 292 is already spoken of that the control lever in addition to its function to control the The looper clamping lever also realizes a centering or fixing of the position of the looper rod during the thread transfer or transfer. However, a solution to this is not shown.

Bekannt ist aus der DE-PS 39 01 549 ferner ein Greifer mit einem webblattseitig angeordneten Führungsholz, dessen Aufgabe es ist, dem Greifer während des Schußfadeneintrages in das Webfach eine stabilisierende Führung am Riet zu verleihen. Der Greifer mit Führungsholz gleitet dabei während seiner alternierenden Vor- und Rückwärtsbewegung am Webblatt entlang.
Ungeachtet der Gestaltungs- und Befestigungsmöglichkeiten des Führungsholzes am Greifer ist hier als nachteilig zu erwähnen, daß die Rietstäbe des Webblattes einem ständigen Verschleiß durch die Reibung mit dem Führungsholz unterliegen.Also known from DE-PS 39 01 549 is a gripper with a guide wood arranged on the reed side, the task of which is to provide the gripper with a stabilizing guide on the reed during the weft insertion into the shed. The gripper with guide wood glides along the reed during its alternating forward and backward movement.
Regardless of the design and fastening options of the guide wood on the gripper, it should be mentioned here as a disadvantage that the reed rods of the reed are subject to constant wear due to the friction with the guide wood.

Der Erfindung liegt, ausgehend von den vorgenannten bekannten Lösungen, die Aufgabe zugrunde, die mittels eines flexiblen Bandes oder einer starr ausgebildeten Greiferstange zum Zwekke der Fadenübergabe in Webfachmitte sich aufeinander zubewegenden Greifer durch entsprechend ausgebildete Führungen vor greiferbeschädigenden Kontaktierungen zu bewahren und gleichzeitig die Rietstäbe vor Reibungsverschleiß zu schützen.The invention is based on the aforementioned known solutions, the task of using a flexible band or a rigidly designed gripper bar for the purpose of thread transfer in the loom center to move towards each other gripper by suitably trained guides from gripper-damaging contacts and at the same time protect the reed rods from frictional wear to protect.

Erfindungsgemäß wird die Aufgabe im wesentlichen durch die in Anspruch 1 aufgeführten kennzeichnenden Merkmale gelöst.According to the invention the object is essentially achieved by the characterizing features listed in claim 1.

Mit der erfindungsgemäßen Lösung wird der Vorteil erreicht, daß eine einwandfreie Schußfadenübergabe ohne Kollision der Greifer gewährleistet ist.
Gegenüber dem zitierten Stand der Technik besteht der Vorteil der erfindungsgemäßen Lösung darin, daß die Führungshebel schon kurz nach der Schußfadenübergabe in Fachmitte unter die Kettfäden des Unterfaches geschwenkt werden können. Der Zeitpunkt des Durchtritts der Führungshebel durch das Unterfach ist dabei so gewählt, daß noch ausreichend lange vor dem Anschlagen des Schußfadens bzw. dessen Abbinden im Bindepunkt des Gewebes die Führungshebel aus dem Webfach geschwenkt sind. Daher haben die Kettfäden des Unterfaches bis zum Anschlagen des Schußfadens ausreichend Zeit in ihre ursprüngliche Lage zurückzukehren, als dies bei den Führungen nach dem Stand der Technik der Fall ist. Diese Führungen tauchen naturgemäß erst beim Blattanschlag unter das Unterfach.
Die erfindungsgemäße Lösung ist aber nicht nur zur Greiferführung im Bereich der Schußfadenübergabe vorgesehen; sie kann auch über die gesamte Gewebebreite angeordnet sein. Das heißt, es ist möglich, daß die Greifer noch vor dem Eintritt, aber insbesondere mit dem Eintritt in das Webfach bis hin zur Schußfadenübergabe geführt sind und nach der Schußfadenübergabe die Führungshebel aus dem Unterfach geschwenkt werden.
Dies bedeutet, daß es in weiterer Ausgestaltung der Erfindung denkbar ist nicht nur die Greifer 1 selbst, sondern auch die sie tragenden Organe entsprechend den Merkmalen der Erfindung zu führen. Dabei kann es alternativ möglich sein, anstelle der in Figur 1 dargestellten Greiferführung, den Führungsmechanismus, bestehend aus Hebelwelle 3, Lager 4 und Führungshebel 5, sowie seinen Antrieb, bestehend aus Koppel 7, Rollenhebel 9, Rolle 10 und Exzenter 12, in den Bewegungsbereich der Greiferstangen 2 zu verlagern. Das heißt, daß dann die Greifer 1 selbst im Bereich der Schußfadenübergabe nicht geführt sind, wohl aber die den Greifer 1 tragende Stange 2 bzw. im Falle eines bandgeführten Greifers dessen Führungsband.
Der Antrieb des Führungsmechanismus wird hier nicht in ausführlicher Weise dargestellt; dieser ist aus der im Stand der Technik beschriebenen DE-PS 17 10 292 entnehmbar.With the solution according to the invention the advantage is achieved that a perfect weft transfer without collision of the hook is guaranteed.
Compared to the cited prior art, the advantage of the solution according to the invention is that the guide levers can be swiveled under the warp threads of the lower compartment shortly after the weft thread transfer in the center. The timing of the passage of the guide lever through the lower compartment is chosen so that it is long enough before the striking of the Weft thread or its binding in the weaving point of the fabric, the guide levers are pivoted out of the shed. Therefore, the warp threads of the lower shed have enough time to return to their original position until the weft thread strikes than is the case with the guides according to the prior art. Of course, these guides only dive under the sub-compartment when the leaf stops.
However, the solution according to the invention is not only provided for the gripper guidance in the area of the weft transfer; it can also be arranged over the entire width of the fabric. This means that it is possible that the grippers are guided up to the weft thread transfer before the entry, but in particular with the entry into the shed, and that the guide levers are pivoted out of the lower compartment after the weft thread transfer.
This means that in a further embodiment of the invention it is conceivable not only to guide the grippers 1 themselves but also the organs carrying them in accordance with the features of the invention. It may alternatively be possible, instead of the gripper guide shown in Figure 1, the guide mechanism, consisting of lever shaft 3, bearing 4 and guide lever 5, and its drive, consisting of coupling 7, roller lever 9, roller 10 and eccentric 12, in the range of motion to shift the gripper bars 2. This means that the grippers 1 are not guided even in the area of the weft transfer, but the rod 2 carrying the gripper 1 or, in the case of a belt-guided gripper, its guide belt.
The drive of the guide mechanism is not shown in detail here; this can be found in DE-PS 17 10 292 described in the prior art.

Im folgenden wird die Erfindung anhand der in der Zeichnung dargestellten Ausführungsbeispiele beschrieben. Es zeigen:

Fig. 1
Mit dem Greifer in Eingriff stehende Führungshebel in der Vorderansicht
Fig. 2
Mit dem Greifer im Eingriff stehende Führungshebel gem. Ansicht "A" nach Fig. 1
Fig. 3
Eine Anordnungsvariante der mit dem Greifer in Eingriff stehenden Führungshebel gem. Ansicht "A" nach Fig. 1.
The invention is described below with reference to the exemplary embodiments shown in the drawing. Show it:
Fig. 1
Front view of lever engaged with gripper
Fig. 2
Guide lever in engagement with the gripper acc. View "A" of Fig. 1st
Fig. 3
A variant arrangement of the guide lever engaged with the gripper acc. View "A" of Fig. 1st

Figur 1 zeigt zu beiden Seiten der mit einer strichpunktierten Linie dargestellten Mittenübergabe des Schußfadens die Greifer 1, welche hier z.B. von einer Greiferstange 2 getragen werden. In einem gewissen Abstand rechts und links von der Mittenübergabe sind mit der Hebelwelle 3, die in den Lagern 4 drehbeweglich aufgenommen ist, wenigstens zwei voneinander beabstandet angeordnete Führungshebel 5 drehfest verbunden. Die Hebelwelle 3 ihrerseits steht mit einer Schwinge 6 ebenfalls in drehfester Verbindung (Figur 2). Am freien Ende der Schwinge 6 greift eine Koppel 7 an, die mit einem Antrieb, wie er aus der DE-PS 17 10 292 bekannt ist, in Verbindung steht. Demgemäß steht das andere Ende der Koppel 7 mit einem drehfest mit der Webladenwelle 8 verbundenen Rollenhebel 9 in Verbindung, dessen Rolle 10 einen mit der Antriebswelle 11 drehfest verbundenen Exzenter 12 abtastet.
Die Steuerung der Führungshebel 5 erfolgt in der Weise, daß beim Umlauf des Exzenters 12 die Führungshebel 5 durch die Kettfäden des Unterfaches 13 bewegt werden und die Greifer 1 an der Greiferführungsfläche 14 gleitend führen.Figure 1 shows on both sides of the center transfer of the weft thread shown with a dash-dotted line, the grippers 1, which are carried here for example by a gripper bar 2. At a certain distance to the right and left of the center transfer, at least two guide levers 5, which are arranged at a distance from one another, are connected in a rotationally fixed manner to the lever shaft 3, which is rotatably received in the bearings 4. The lever shaft 3 is in turn connected to a rocker 6 in a rotationally fixed connection (FIG. 2). At the free end of the rocker 6 engages a coupling 7, which is connected to a drive as it is known from DE-PS 17 10 292. Accordingly, the other end of the coupling 7 is connected to a roller lever 9, which is non-rotatably connected to the shutter shaft 8, the roller 10 of which scans an eccentric 12, which is non-rotatably connected to the drive shaft 11.
The control of the guide lever 5 takes place in such a way that when the eccentric 12 rotates, the guide lever 5 is moved by the warp threads of the lower compartment 13 and the grippers 1 slide on the gripper guide surface 14.

Figur 2 zeigt einen an der Führungsfläche 14a des Greifers 1 anliegenden Führungshebel 5. Dies ist eine Position, wie sie unmittelbar vor Übergabe des Schußfadens vorhanden ist.
Die Greiferführungsfläche 14a ist hier an einem mit dem Greifer fest verbundenen Anlaufstück 14 ausgebildet. Webblattseitig trägt der Greifer 1 ein Führungsholz 15, das ihn gegenüber dem Webblatt 16 abstützt und gleichzeitig gleitend am Webblatt 16 führt.
Eine andere Greiferführung zeigt Figur 3. Hier ist eine Greiferführungsfläche 17a an einem webblattseitig mit dem Greifer 1 verbundenen Anlaufstück 17 vorgesehen. Bei einer derartigen Greiferführung kann auf das mit dem Greifer verbundene Führungsholz 15 verzichtet werden. In den Ausführungsbeispielen nach Figur 2 und 3 sind die Führungshebel 5 drehfest auf der Hebelwelle 3 angeordnet. Die Steuerung erfolgt nach der zu Figur 1 beschrieben Weise.FIG. 2 shows a guide lever 5 resting on the guide surface 14a of the hook 1. This is a position as it is present immediately before the weft thread is transferred.
The gripper guide surface 14a is formed here on a thrust piece 14 which is firmly connected to the gripper. On the reed side, the gripper 1 carries a guide wood 15 which opposes it Supports reed 16 and simultaneously slides on reed 16.
Another gripper guide is shown in FIG. 3. Here, a gripper guide surface 17a is provided on a thrust piece 17 connected to the gripper 1 on the reed side. With such a gripper guide, the guide wood 15 connected to the gripper can be dispensed with. In the exemplary embodiments according to FIGS. 2 and 3, the guide levers 5 are arranged on the lever shaft 3 in a rotationally fixed manner. The control takes place in the manner described for FIG. 1.

ZEICHNUNGS-LEGENDEDRAWING LEGEND

11
GreiferGripper
22nd
GreiferstangeGripper bar
33rd
HebelwelleLever shaft
44th
Lagercamp
55
FührungshebelGuide lever
66
SchwingeSwingarm
77
KoppelPaddock
88th
WebladenwelleWeaving wave
99
RollenhebelRoller lever
1010th
Rollerole
1111
Antriebswelledrive shaft
1212th
Exzentereccentric
1313
UnterfachSub-compartment
1414
AnlaufstückThrust piece
14a14a
FührungsflächeLeadership area
1515
FührungsholzGuide wood
1616
WebblattReed
1717th
AnlaufstückThrust piece
17a17a
FührungsflächeLeadership area
1818th
Gewebetissue
1919th
BlattleisteSheet bar

Claims (4)

Vorrichtung zur Führung eines von einem Band oder einer Stange getragenen Greifers in Webmaschinen, wobei die von beiden Seiten in das aus Unter- und Oberfach bestehende Webfach hinein- und herausbewegbaren Greifer auf der Ladensohle einer Weblade und beabstandet gegenüber dem Webblatt geführt sind und wobei in Fachmitte die Übergabe des Schußfadens von dem einen Greifer zu dem anderen Greifer erfolgt, dadurch gekennzeichnet, daß jeder Greifer (1) wenigstens auf einer Seite seiner Längserstreckung eine zusätzliche Führungsfläche (14a,17a) aufweist, die mit in das Unterfach (13) gesteuert ein- und ausschwenkbaren Führungshebeln (5) zeitweilig in gleitführender Verbindung steht.Device for guiding a gripper carried by a band or a rod in weaving machines, wherein the grippers which can be moved in and out of the shed consisting of the lower and upper shed on both sides of the drawer of a sley and are spaced from the reed and are guided in the middle of the shed the transfer of the weft thread takes place from one gripper to the other gripper, characterized in that each gripper (1) has an additional guide surface (14a, 17a) on at least one side of its longitudinal extent, which is also controlled in the lower compartment (13). and swing-out guide levers (5) are temporarily in a sliding connection. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Führungshebel (5) drehfest mit einer im Bereich der Blattleiste (19) gelagerten und Parallel zur Webblattwelle (8) verlaufenden Hebelwelle (3) verbunden sind.Device according to Claim 1, characterized in that the guide levers (5) are connected in a rotationally fixed manner to a lever shaft (3) which is mounted in the region of the leaf bar (19) and runs parallel to the reed shaft (8). Vorrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Hebelwelle (3) drehfest mit einer Schwinge (6) verbunden ist, deren freies Ende mit einer antreibenden Koppel (7) in Verbindung steht.Apparatus according to claim 2, characterized in that the lever shaft (3) is rotatably connected to a rocker (6), the free end of which is connected to a driving coupling (7). Antriebsvorrichtung für in das Unterfach (13) gesteuert ein- und ausschwenkbare Führungshebel (5), die drehfest mit einer im Bereich der Blattleiste (19) gelagerten und parallel zur Webblattwelle (8) verlaufenden Hebelwelle (3) verbunden sind und wobei die Hebelwelle (3) drehfest mit einer Schwinge (6) verbunden ist, deren freies Ende mit einer Koppel (7) in Verbindung steht, dadurch gekennzeichnet, daß die Koppel (7) in an sich bekannter Weise an einem auf der Webblattwelle (8) angeordneten Rollenhebel (9) angreift, der wiederum mit einem auf der Antriebswelle (11) sitzenden Exzenter (12) verbunden ist.Drive device for guide levers (5) which can be pivoted in and out of the lower compartment (13) in a controlled manner and which are connected in a rotationally fixed manner to a lever shaft (3) which is mounted in the region of the leaf bar (19) and runs parallel to the reed shaft (8), and the lever shaft (3 ) is rotatably connected to a rocker (6), the free end of which is connected to a coupling (7), characterized in that the coupling (7) in a manner known per se on a roller lever (9) arranged on the reed shaft (8) ) which in turn is connected to an eccentric (12) seated on the drive shaft (11).
EP93101034A 1992-02-28 1993-01-23 Inserting tapes or rods guiding device for looms Expired - Lifetime EP0557723B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4206212 1992-02-28
DE4206213 1992-02-28
DE4206213A DE4206213A1 (en) 1992-02-28 1992-02-28 Gripper loom
DE4206212A DE4206212A1 (en) 1992-02-28 1992-02-28 Gripper loom

Publications (2)

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EP0557723A1 true EP0557723A1 (en) 1993-09-01
EP0557723B1 EP0557723B1 (en) 1997-05-21

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US (1) US5303747A (en)
EP (1) EP0557723B1 (en)
JP (1) JPH05339844A (en)
DE (1) DE59306482D1 (en)

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Publication number Priority date Publication date Assignee Title
DE4308243A1 (en) * 1993-03-11 1994-09-15 Juergens Masch Gmbh & Co Projectile wide weaving machine
DE4415862C1 (en) * 1994-05-05 1995-04-27 Dornier Gmbh Lindauer Device for the controlled actuation of a thread clamp of a gripper in weaving machines
DE60220788T2 (en) * 2002-08-30 2008-03-06 Promatech S.P.A., Colzate Improvements to weft grippers for weaving machines and looms with guiding means therefor
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
BE1028436B1 (en) * 2020-06-25 2022-01-31 Vandewiele Nv GUIDE DEVICE IN A GRIPPER LOAVY MACHINE, GRIPPER LOAVY MACHINE AND PROCEDURE FOR REFORMING A GRIPPER LOAVING MACHINE

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BE702866A (en) * 1966-09-06 1968-01-15
DE1710292A1 (en) * 1967-04-04 1971-10-28 Dornier Gmbh Lindauer Weft insertion device on weaving machines
EP0109607A1 (en) * 1982-11-13 1984-05-30 F. Oberdorfer GmbH &amp; Co. KG Industriegewebe-Technik Loom having a gripper shuttle circulating in a closed circuit
EP0359940A2 (en) * 1988-09-20 1990-03-28 F. Oberdorfer GmbH &amp; Co. KG Industriegewebe-Technik Shuttle guide on flat looms for screens and felts for the equipment of paper-making machines or the like

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IT1184559B (en) * 1985-06-04 1987-10-28 Vamatex Spa MEANS TO GUIDE THE WEFT-HOLDER PLIERS AND THE BELTS THAT COMMAND THEM INSIDE THE PITCH OF WEAVING FRAMES WITH PLIERS
JPS6262953A (en) * 1985-09-12 1987-03-19 昭和機械株式会社 Method and apparatus for lifting and falling tape guide of rapier loom
DE3901549A1 (en) * 1988-07-25 1990-02-08 Dornier Gmbh Lindauer GRIPPER WITH GUIDE WOOD FOR WEAVING MACHINES
FR2648161B1 (en) * 1989-06-09 1991-10-04 Saurer Diederichs Sa SUPPORT AND GUIDANCE DEVICE FOR MECHANICAL WEFT INSERTION DEVICES IN A NON-SHUTTLE WEAVING MACHINE
US5176185A (en) * 1990-07-24 1993-01-05 Sulzer Brothers Limited Guide teeth for a rapier picking tape

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Publication number Priority date Publication date Assignee Title
BE702866A (en) * 1966-09-06 1968-01-15
DE1710292A1 (en) * 1967-04-04 1971-10-28 Dornier Gmbh Lindauer Weft insertion device on weaving machines
EP0109607A1 (en) * 1982-11-13 1984-05-30 F. Oberdorfer GmbH &amp; Co. KG Industriegewebe-Technik Loom having a gripper shuttle circulating in a closed circuit
EP0359940A2 (en) * 1988-09-20 1990-03-28 F. Oberdorfer GmbH &amp; Co. KG Industriegewebe-Technik Shuttle guide on flat looms for screens and felts for the equipment of paper-making machines or the like

Also Published As

Publication number Publication date
EP0557723B1 (en) 1997-05-21
DE59306482D1 (en) 1997-06-26
JPH05339844A (en) 1993-12-21
US5303747A (en) 1994-04-19

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