EP0133153B1 - Device for fixing an auxiliary apparatus on the reed of a shuttleless loom - Google Patents

Device for fixing an auxiliary apparatus on the reed of a shuttleless loom Download PDF

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Publication number
EP0133153B1
EP0133153B1 EP84810230A EP84810230A EP0133153B1 EP 0133153 B1 EP0133153 B1 EP 0133153B1 EP 84810230 A EP84810230 A EP 84810230A EP 84810230 A EP84810230 A EP 84810230A EP 0133153 B1 EP0133153 B1 EP 0133153B1
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EP
European Patent Office
Prior art keywords
reed
bolt
pin
weft
aperture
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Expired
Application number
EP84810230A
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German (de)
French (fr)
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EP0133153A1 (en
Inventor
Hubertus Henricus Aarts
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Sulzer AG
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Rueti Te Strake BV
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Publication of EP0133153A1 publication Critical patent/EP0133153A1/en
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type
    • D03D49/60—Construction or operation of slay
    • D03D49/62—Reeds mounted on slay
    • 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
    • D03D47/28—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed
    • D03D47/30—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms wherein the weft itself is projected into the shed by gas jet
    • D03D47/3066—Control or handling of the weft at or after arrival
    • D03D47/308—Stretching or holding the weft
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D49/00—Details or constructional features not specially adapted for looms of a particular type

Definitions

  • the invention relates to a device for fastening an auxiliary member, adjustable in the weft direction, to the reed of a defenseless weaving machine.
  • Protective weaving loom means in particular a weaving machine of the type in which there is a conveyor tunnel for measured weft pieces on the reed, with a blowing nozzle for inserting the weft pieces at one end of the shed and as an auxiliary organ near the other end of the shed a device working with an air stream for catching and stretching the inserted weft pieces or a device for perceiving the inserted weft threads or a combination of such devices is provided, which device has a collecting channel adjoining the effective part of the conveying channel and is adjustable in the weft direction against the stop side the reed is attached.
  • Such a weaving machine is used in cases in which cloths of different widths are to be weavable on the machine. This means that the reed on the side facing away from the weft conveyor protrudes over a variable length outside the edge of the cloth and that only the part of the conveyor tunnel lying within the cloth width is used effectively.
  • the device for extension and / or perception is now attached to the protruding reed part.
  • Examples of known weaving machines of this type are, for example, those according to the American patents 3,880,198 and 3,901,286.
  • the slidable attachment to the reed is achieved by means of a fastening clip which in one case engages on the reed beam and in the other case on the upper edge of the reed.
  • the invention aims to improve the attachment of the auxiliary member to the reed, which is in particular better adapted to the inertia forces occurring during the reed stop movements.
  • the auxiliary member has at least one flange which projects between two adjacent reed slats on the rear side of the reed, the flange part projecting on the rear side of the reed having an opening for inserting a locking element of the toggle type.
  • the locking element is formed by a bolt, of which a central part engaging with the projecting flange part lies a little eccentrically with respect to the two end parts of the bolt.
  • removable and fixable support blocks flattened at least on one side, are provided on the bolt ends.
  • This design has the advantage that when the stretching device is tightened by rotating the bolt, the bolt ends acting as toggle cams do not come into direct contact with the reed in accordance with an unfavorable line contact, but rather over the flat side of the reed and thus the separate ones Rietlamellen support blocks little load.
  • the air jet responsible for stretching the weft thread pieces entered in the shed is preferably directed, as is described in the American patent specification 4,096,889.
  • Fig. 1 the reed is designated 1, which can be moved back and forth in the direction of arrow I about an axis of rotation not shown in the drawing between the retracted position shown in the drawing and the stop position.
  • the actual reed is formed in a known manner from a row of reed lamellae 2 arranged side by side in the longitudinal direction of the machine, which are enclosed at the bottom in the reed beam 3 and inserted into a reed rail 4 at the top.
  • the shed is designated, which of the upper chain 6, the lower chain 7 and the Rietlamellen 2 is limited.
  • the already woven cloth is denoted by 8, while 9 denotes the stop line, along which the reed strikes a weft thread inserted into the shed each time in its effective stop position.
  • the entry of a measured piece of weft is done by means of a blowing nozzle 10 arranged on one side of the shed.
  • the piece of weft inserted by the air-fed blowing nozzle 10 is actually requested instead of through the tunnel 11, which is delimited by all the recesses in the reed blades 2, which Recesses in the direction of the stop line 9 are open.
  • the advancement of the weft through the shed bezw.
  • Support is provided through the reed tunnel 11, in particular with larger weaving widths, for example by means of intermediate blowing nozzles. which are carried by the reed.
  • These auxiliary blowing nozzles are not shown in the drawing.
  • the stretching device 12 is mounted on the end part of the reed which faces away from the blowing nozzle 10 and which projects outside the edge of the cloth.
  • This stretching device consists of a shaped piece whose side facing the reed is shaped in accordance with the profile of the reed lamellae (see in particular FIG. 2).
  • the shaped piece of the stretching device has a rib 13 which fits tightly in the part of the reed tunnel 11 lying outside the shed.
  • a collecting channel 14 (see FIG. 2) is excluded in the shaped part of the stretching device, which connects to the effective part of the reed tunnel 11 lying within the width of the woven cloth.
  • the passage of the collecting channel 14 gradually decreases in the weft direction from the entrance opening 15 (see FIG. 2), the cross section of which is almost the same size as that of the conveyor tunnel 11.
  • the exit opening of the collecting channel, designated 16 in FIG. 1, has a passage which is only a fraction of the cross section of the Riet tunnel.
  • the flange 17 protrudes beyond the rear of the reed.
  • this projecting part there is an opening 18 in which a locking bolt 19 can be received, the diameter of which corresponds to that of the opening 18.
  • the locking bolt 19 has a central part 19a with a somewhat smaller diameter, which is eccentric with respect to the two end parts 19b. So that the shaped part arranged in the desired position on the stop side of the protruding reed part can now be tightened, after inserting the locking bolt 19, the support blocks designated 20, flattened on one side, are each arranged on a bolt end 19b in such a way that the blocks also lie flat on the back of the reed. Then the bolt 19, while the middle part of it lies in the opening 18 of the flange 17, is rotated such that the bolt ends 19b act as toggle cams within the support blocks 20 and these support blocks firmly on the rear side of the reed. lie on.
  • the stretching device can also be released in a simple manner by means of a rotary movement in the opposite direction and the removal of the support blocks, as well as the removal of the locking bolt.
  • a flange part 21 which also fits between two adjacent reed plates and contributes to a good fixation of the stretching device 12.
  • the stretching device 12 receives its stretching effect from an air jet, which is directed transversely in the vicinity of the outlet opening 15, namely approximately perpendicularly through the collecting channel.
  • a feed channel 22 is provided in the fitting, which can be connected to a compressed air source at 23 and opens into the lower wall of the collecting channel 14 in the vicinity of the exit opening, just opposite the collecting opening of a further mixing tube 24, which under the influence of the inserted weft piece Air jet.
  • this stretching device corresponds to the stretching device according to American Patent 4,096,889.
  • a shot detection device is attached to the part of the reed protruding outside the cloth edge, for example at a point which lies between the cloth edge and the stretching device.
  • the fastening method shown in FIG. 3 differs from that according to FIGS. 1 and 2 in that there are two fastening flanges 17 'inserted between the reed fins. These fastening flanges, of which only one is visible in the cross-sectional drawing according to FIG. 3. are respectively on the front of the reed 1 by means of an upper and a lower connecting web part 25. 26 connected. The distance between the flanges is chosen so that an upper and a lower block 27 or between. 28 of a suitable translucent plastic part fits. In each block 27 resp.
  • the locking bolt 19 'and the parts 20' acting as toggle cams form one piece.
  • the opening 18 ' is designed as a slot open at one end and in such a way that the locking bolt 18' can be inserted from the underside.
  • One end of a flexible element 30 is fastened to the parts 20 'lying eccentrically opposite the locking bolt 18', the other end of which is connected via a spring 31 to an element 32 which hooks over the upper reed rail 4. Under the influence of the spring 31, the flexible element 30 tries to unwind from the eccentric parts 20 ', as a result of which a counterclockwise moment is exerted on these parts, which, as viewed in FIG. 3, moves the flanges 17' to the right and thereby attracts blocks 27 and 28 to the front of the reed.

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

Description

Die Erfindung bezieht sich auf eine Vorrichtung zur in Schussrichtung verstellbaren Befestigung eines Hilfsorgans an das Riet einer schützenlosen Webmaschine. Mit schützenloser Webmaschine wird hierbei insbesondere eine Webmaschine vom Typ gemeint, bei welcher am Riet ein Fördertunnel für abgemessene Schussfadenstücke vorhanden ist, wobei an einem Ende des Webfachs eine Blasdüse zur Eintragung der Schussfadenstücke vorhanden ist und wobei in der Nähe des anderen Endes des Webfachs als Hifsorgan eine mit einem Luftstrom arbeitende Vorrichtung zum Auffangen und Strecken der eingetragenen Schussfadenstücke oder eine Vorrichtung zur Wahrnehmung der eingetragenen Schussfäden oder aber eine Kombination solcher Vorrichtungen vorgesehen ist, welche Vorrichtung einen sich an den wirksamen Teil des Förderkanals anschliessenden Auffangkanal aufweist und in Schussrichtung verstellbar gegen die Anschlagseite des Riets befestigt ist.The invention relates to a device for fastening an auxiliary member, adjustable in the weft direction, to the reed of a defenseless weaving machine. Protective weaving loom means in particular a weaving machine of the type in which there is a conveyor tunnel for measured weft pieces on the reed, with a blowing nozzle for inserting the weft pieces at one end of the shed and as an auxiliary organ near the other end of the shed a device working with an air stream for catching and stretching the inserted weft pieces or a device for perceiving the inserted weft threads or a combination of such devices is provided, which device has a collecting channel adjoining the effective part of the conveying channel and is adjustable in the weft direction against the stop side the reed is attached.

Eine solche Webmaschine wird angewandt in Fällen, in welchen auf der Maschine Tücher verschiedener Breite webbar sein sollen. Dies bedeutet, dass das Riet an der vom Schussförderer abgekehrten Seite über eine variabele Länge ausserhalb des Tuchrands hervorragt und dass nur der innerhalb der Tuchbreite liegende Tiel des Fördertunnels wirksam benutzt wird. Am vorragenden Rietteil ist nunmehr die Vorrichtung zur Streckung und/oder Wahrnehmung befestigt.Such a weaving machine is used in cases in which cloths of different widths are to be weavable on the machine. This means that the reed on the side facing away from the weft conveyor protrudes over a variable length outside the edge of the cloth and that only the part of the conveyor tunnel lying within the cloth width is used effectively. The device for extension and / or perception is now attached to the protruding reed part.

Beispiele bekannter Webmaschinen dieses Typs sind zum Beispiel jene gemäss den amerikanischen Patentschriften 3.880.198 und 3.901.286. Bei diesen Ausführungen wird die verschiebbare Befestigung am Riet mittels einer Befestigungsschelle erreicht, welche im einen Fall auf dem Rietbalken und im anderen Fall auf dem oberen Rand des Riets angreift.Examples of known weaving machines of this type are, for example, those according to the American patents 3,880,198 and 3,901,286. In these versions, the slidable attachment to the reed is achieved by means of a fastening clip which in one case engages on the reed beam and in the other case on the upper edge of the reed.

Die Erfindung bezweckt eine verbesserte Befestigung des Hilfsorgans am Riet, welche insbesondere besser den bei den Rietanschlagbewegungen auftretenden Massenkräften angepasst ist.The invention aims to improve the attachment of the auxiliary member to the reed, which is in particular better adapted to the inertia forces occurring during the reed stop movements.

Erfindungsgemäss wird dieses Ziel dadurch erreicht, dass das Hilfsorgan wenigstens einen Flansch aufweist, welcher zwischen zwei angrenzendes Rietlamellen hindurch auf der Hinterseite des Riets vorragt, wobei der auf der Hinterseite des Riets vorragende Flanschteil eine Oeffnung zum Einstecken eines Riegelelements des Knebeltyps aufweist. So kann die Streckvorrichtung in einfacher und zweckmässiger Weise an die Anschlagseite des vorragenden Rietteils fest angezogen werden, während die Lage des Hilfsorgans in relativ kleinen Schritten verstellbar ist, welche etwa der Dicke einer Rietlamelle entsprechen.According to the invention, this aim is achieved in that the auxiliary member has at least one flange which projects between two adjacent reed slats on the rear side of the reed, the flange part projecting on the rear side of the reed having an opening for inserting a locking element of the toggle type. Thus, the stretching device can be firmly and easily tightened to the stop side of the protruding reed part, while the position of the auxiliary element can be adjusted in relatively small steps, which correspond approximately to the thickness of a reed plate.

In einer praktischen Ausführung wird das Riegelelement von einem Bolzen gebildet, von welchem ein mit dem vorragenden Flanschteil in Eingriff tretender mittlerer Teil ein wenig exzentrisch gegenüber den beiden Endteilen des Bolzens liegt. Bei Verdrehung dieses Bolzens, nachdem er eingesteckt wurde, wirken die beiden Bolzenenden als Knebelnocken an der Hinterseite des Riets entlang. Dadurch wird die Streckvorrichtung fest an die Anschlagseite des Riets gezogen.In a practical embodiment, the locking element is formed by a bolt, of which a central part engaging with the projecting flange part lies a little eccentrically with respect to the two end parts of the bolt. When this bolt is twisted after it has been inserted, the two bolt ends act as toggle cams along the rear of the reed. This pulls the stretcher firmly against the stop side of the reed.

Gemäss einem weiteren Merkmal der Erfindung sind an den Bolzenenden wegnehmbare und festsetzbare, wenigstens an einer Seite abgeflachte Stützblöckchen vorgesehen. Diese Ausführung hat den Vorteil, dass beim Festziehen der Streckvorrichtung mittels Drehung des Bolzens die als Knebelnocken wirkenden Bolzenenden nicht unmittelbar mit dem Riet gemäss einer ungünstigen Linienberührung in Berührung kommen, sondern über den mit ihrer flachen Seite an der Hinterseite des Riets anliegenden und dadurch die gesonderten Rietlamellen wenig belastenden Stützblöckchen.According to a further feature of the invention, removable and fixable support blocks, flattened at least on one side, are provided on the bolt ends. This design has the advantage that when the stretching device is tightened by rotating the bolt, the bolt ends acting as toggle cams do not come into direct contact with the reed in accordance with an unfavorable line contact, but rather over the flat side of the reed and thus the separate ones Rietlamellen support blocks little load.

Der für das Strecken der ins Webfach eingetragenen Schussfadenstücke verantwortliche Luftstrahl wird vorzugsweise gerichtet, wie es in der amerikanischen Patentschrift 4.096.889 beschrieben ist.The air jet responsible for stretching the weft thread pieces entered in the shed is preferably directed, as is described in the American patent specification 4,096,889.

Die Erfindung wird nach Folgend anhand der Zeichnung eines Ausführungsbeispiels näher erläutert.

  • Figur 1 zeigt eine Perspektivansicht eines Teils des Riets einer pneumatischen Webmaschine mit einer daran gemäss der Erfindung befestigten Streckvorrichtung ;
  • Figur 2 zeigt eine Perspektivansicht der Streckvorrichtung gemäss Fig.2, in der Anschlagrichtung des Riets gesehen mit demontiertem Riegelbolzen und
  • Figur 3 zeigt einen Querschnitt durch das Riet einer pneumatischen Webmaschine mit einer daran gemäss der Erfindung befestigten Schusswahrnehmungsvorrichtung.
The invention is explained in more detail below with reference to the drawing of an exemplary embodiment.
  • FIG. 1 shows a perspective view of part of the reed of a pneumatic weaving machine with a stretching device fastened thereon according to the invention;
  • FIG. 2 shows a perspective view of the stretching device according to FIG. 2, seen in the stop direction of the reed with the locking bolt and removed
  • FIG. 3 shows a cross section through the reed of a pneumatic weaving machine with a weft detection device attached to it according to the invention.

Obgleich im Vorgehenden wie auch in der nachfolgenden Beschreibung immer von « Luftstrom und « Luftstrahl die Rede ist, kann angenommen werden, dass an Stelle von Luft auch ein anderes geeignetes strömendes Fluidum zum Transport und zum Strecken der nacheinander ins Webfach eingetragenen Schussfadenstücke angewandt werden könnte.Although in the foregoing as well as in the description below, there is always talk of "air flow and" air jet, it can be assumed that instead of air, another suitable flowing fluid could be used for transporting and stretching the weft thread pieces which were successively entered in the shed.

In Fig. 1 ist das Riet mit 1 bezeichnet, welches in Richtung des Pfeils I um eine in der Zeichnung nicht näher dargestellte Drehungsachse hin und her bewegbar ist zwischen der in der Zeichnung dargestellten zurückgezogenen Lage und der Anschlag lage.In Fig. 1, the reed is designated 1, which can be moved back and forth in the direction of arrow I about an axis of rotation not shown in the drawing between the retracted position shown in the drawing and the stop position.

Das eigentliche Riet wird in bekannter Weise von einer Reihe in Längsrichtung der Maschine nebeneinander angeordneten Rietlamellen 2 gebildet, welche unten im Rietbalken 3 eingefasst sind und an der Oberseite in eine Rietschiene 4 stecken.The actual reed is formed in a known manner from a row of reed lamellae 2 arranged side by side in the longitudinal direction of the machine, which are enclosed at the bottom in the reed beam 3 and inserted into a reed rail 4 at the top.

Mit 5 ist das Webfach bezeichnet, welches von der oberen Kette 6, der unteren Kette 7 und den Rietlamellen 2 begrenzt wird. Das bereits gewebte Tuch ist mit 8 bezeichnet, während mit 9 die Anschlaglinie bezeichnet ist, an welcher entlang das Riet jedesmal in ihrer wirksame Anschlaglage einen ins Webfach eingetragenen Schussfaden an das Tuch schlägt.With 5 the shed is designated, which of the upper chain 6, the lower chain 7 and the Rietlamellen 2 is limited. The already woven cloth is denoted by 8, while 9 denotes the stop line, along which the reed strikes a weft thread inserted into the shed each time in its effective stop position.

Die Eintragung eines abgemessenen Schussfadenstücks geschieht mittels einer auf einer Seite des Webfachs angeordneten Blasdüse 10. Das von der mit Luft gespeisten Blasdüse 10 eingetragene Schussfadenstück wird tatsächlich statt durch den Tunnel 11 hindurch gefordert, welcher von den sämtlichen Ausnehmungen in den Rietlamellen 2 begrenzt wird, welche Ausnehmungen in Richtung der Anschlaglinie 9 offen sind. Die Förderung der Schussfadens durch das Webfach bezw. durch den Riettunnel 11 hindurch wird dabei, insbesondere bei grösseren Webbreiten, etwa mittels zwischenliegender Blasdüsen unterstützt. welche vom Riet getragen sind. Diese Hilfsblasdüsen sind in der Zeichnung nicht näher dargestellt.The entry of a measured piece of weft is done by means of a blowing nozzle 10 arranged on one side of the shed. The piece of weft inserted by the air-fed blowing nozzle 10 is actually requested instead of through the tunnel 11, which is delimited by all the recesses in the reed blades 2, which Recesses in the direction of the stop line 9 are open. The advancement of the weft through the shed bezw. Support is provided through the reed tunnel 11, in particular with larger weaving widths, for example by means of intermediate blowing nozzles. which are carried by the reed. These auxiliary blowing nozzles are not shown in the drawing.

Am von der Blasdüse 10 abgekehrten Endteil des Riets, welcher ausserhalb des Tuchrands vorragt, ist die Streckvorrichtung 12 montiert. Diese Streckvorrichtung besteht aus einem Formstück, deren dem Riet zugekehrte Seite dem Profil der Rietlamellen entsprechend geformt ist (siehe insbesondere Fig. 2). So weist das Formstück der Streckvorrichtung eine Rippe 13 auf, welche engschliessend im ausserhalb des Webfachs liegenden Teil des Riettunnels 11 passt.The stretching device 12 is mounted on the end part of the reed which faces away from the blowing nozzle 10 and which projects outside the edge of the cloth. This stretching device consists of a shaped piece whose side facing the reed is shaped in accordance with the profile of the reed lamellae (see in particular FIG. 2). The shaped piece of the stretching device has a rib 13 which fits tightly in the part of the reed tunnel 11 lying outside the shed.

An der Stelle der Rippe 13 ist im Formstück der Streckvorrichtung ein Auffangkanai 14 (siehe Fig. 2) ausgenommen, welcher an den innerhalb der Breite des gewebten Tuchs liegenden wirksamen Teil des Riettunnels 11 anschliesst. Der Durchgang des Auffangkanals 14 nimmt von der Eingangsöffnung 15 (siehe Fig. 2), deren Querschnitt nahezu gleich gross ist wie jener des Fördertunnels 11, allmählich in Schussrichtung ab. So weist die in Fig. 1 mit 16 bezeichnete Ausgangsöffnung des Auffangkanals einen Durchgang auf, welcher nur noch ein Bruchteil des Riettunnelquerschnitts beträgt.At the location of the rib 13, a collecting channel 14 (see FIG. 2) is excluded in the shaped part of the stretching device, which connects to the effective part of the reed tunnel 11 lying within the width of the woven cloth. The passage of the collecting channel 14 gradually decreases in the weft direction from the entrance opening 15 (see FIG. 2), the cross section of which is almost the same size as that of the conveyor tunnel 11. The exit opening of the collecting channel, designated 16 in FIG. 1, has a passage which is only a fraction of the cross section of the Riet tunnel.

Zur Befestigung der Streckvorrichtung 12 an die profilierte Anschlagseite des Riets dient ein vom Formstück vorragender Flansch 17. welcher zwischen zwei angrenzenden Rietlamellen 2 passt. In montierter Lage ragt der Flansch 17 über die Hinterseite des Riets vor. In diesem vorragenden Teil befindet sich eine Oeffnung 18, in welcher ein Riegelbolzen 19 aufgenommen werden kann, dessen Durchmesser dem der Oeffnung 18 entspricht.A flange 17, which projects from the shaped piece and which fits between two adjacent reed plates 2, is used to fasten the stretching device 12 to the profiled stop side of the reed. In the assembled position, the flange 17 protrudes beyond the rear of the reed. In this projecting part there is an opening 18 in which a locking bolt 19 can be received, the diameter of which corresponds to that of the opening 18.

Der Riegelbolzen 19 weist dabei einen mittleren Teil 19a mit etwas kleinerem Durchmesser auf, welcher exzentrisch gegenüber den beiden Endteilen 19b liegt. Damit nunmehr das in der gewünschten Lage an die Anschlagseite des vorragenden Rietteils angeordnete Formstück festgezogen werden kann, werden nach dem Einbringen des Riegelbolzens 19 die mit 20 bezeichneten, an einer Seite abgeflachten Stützblöckchen jed auf ein Bolzenende 19b angeordnet und zwar derart, dass die Blöckchen mit ihrer abgeflachten Seite auf der Hinterseite des Riets aufliegen. Danach wird der Bolzen 19, während der mittlere Teil desselben in der Oeffnung 18 des Flansches 17 liegt, derart verdreht, dass die Bolzenenden 19b als Knebelnocken innerhalb der Stützblöckchen 20 wirken und diese Stützblöckchen fest auf der Hinterseite des Riets. aufliegen.The locking bolt 19 has a central part 19a with a somewhat smaller diameter, which is eccentric with respect to the two end parts 19b. So that the shaped part arranged in the desired position on the stop side of the protruding reed part can now be tightened, after inserting the locking bolt 19, the support blocks designated 20, flattened on one side, are each arranged on a bolt end 19b in such a way that the blocks also lie flat on the back of the reed. Then the bolt 19, while the middle part of it lies in the opening 18 of the flange 17, is rotated such that the bolt ends 19b act as toggle cams within the support blocks 20 and these support blocks firmly on the rear side of the reed. lie on.

Mittels einer Drehbewegung in umgekehrter Richtung und der Entfernung der Stützblöckchen, sowie des Wegnehmens des Riegelbolzens, kann die Streckvorrichtung auch in einfacher Weise gelöst werden.The stretching device can also be released in a simple manner by means of a rotary movement in the opposite direction and the removal of the support blocks, as well as the removal of the locking bolt.

So istes beispielsweise möglich, die Streckvorrichtung im Zusammenhang mit dem Weben verschiedener Tuchbreitenschnell und Zweckmässig zu verstellen.For example, it is possible to quickly and expediently adjust the stretching device in connection with the weaving of different fabric widths.

Wie Fig. 2 zeigt, befindet sich um die Eingangsöffnung 15 des Auffangkanals 14 herum ein Flanschteil 21 welcher ebenfalls zwischen zwei angrenzenden Rietlamelen passt und zu einer guten Fixierung der Streckvorrichtung 12 beiträgt.As shown in FIG. 2, around the inlet opening 15 of the collecting channel 14 there is a flange part 21 which also fits between two adjacent reed plates and contributes to a good fixation of the stretching device 12.

Die Streckvorrichtung 12 bekommt ihre Streckwirkung von einem Luftstrahl, welcher in der Nähe der Ausgangsöffnung 15 quer und zwar ungefähr senkrecht durch den Auffangkanal hindurch gerichtet ist. Dazu ist im Formstück ein Speisekanal 22 vorgesehen, welcher bei 23 an eine Druckluftquelle anschliessbar ist und in der Nähe der Ausgangsöffnung in die untere Wand des Auffangkanals 14 mündet, gerade gegenüber der Auffangöffnung eines weiteren Mischrohrs 24, welches den Kopf des eingetragenen Schussfadenstücks unter Einfluss des Luftstrahls aufnimmt. Diese Streckvorrichtung entspricht im Prinzip der Streckvorrichtung gemäss der amerikanischen Patentschrift 4 096 889.The stretching device 12 receives its stretching effect from an air jet, which is directed transversely in the vicinity of the outlet opening 15, namely approximately perpendicularly through the collecting channel. For this purpose, a feed channel 22 is provided in the fitting, which can be connected to a compressed air source at 23 and opens into the lower wall of the collecting channel 14 in the vicinity of the exit opening, just opposite the collecting opening of a further mixing tube 24, which under the influence of the inserted weft piece Air jet. In principle, this stretching device corresponds to the stretching device according to American Patent 4,096,889.

Im Beispiel der Fig. 3 handelt es sich um die Befestigung einer Schusswahrnehmungsvorrichtung am ausserhalb des Tuchrands vorragenden Teil des Riets, zum Beispiel an einer Stelle, welche zwischen dem Tuchrand und der Streckvorrichtung liegt. Die in Fig. 3 gezeigte Befestigungsweise unterscheidet sich insofern von jener nach Fig. 1 und 2, dass es zwei zwischen die Rietlamellen hindurchgesteckte Befestigungsflansche 17' gibt. Diese Befestigungsflansche, von welchen nur einer in der Querschnittszeichnung gemäss Fig. 3 sichtbar ist. sind an der Vorderseite des Riets 1 mittels eines oberen und eines unteren Verbindungsstegteils 25 bezw. 26 verbunden. Der Abstand zwischen den Flanschen ist so gewählt, dass dazwischen ein oberes und ein unteres Blöckchen 27 bezw. 28 eines geeigneten Lichtdurchchlässigen Kunststoffteils passt. In jedem Blöckchen 27 bezw. 28 befindet sich ein Raum 29 zur Aufnahme eines Senders bezw. eines Empfängers der Schusswahrnehmungsvorrichtung. Der Teil 27a des oberen Blöckchens 27, welcher zwischen dem unteren Rand des Stegs 25 und dem oberen Rand des Tunnels 11 liegt, in Richtung senkrecht zur Zeichnungsebene betrachtet, ist derart verengt, dass er zwischen die nach vorn ragenden Zungen zweier angrenzender Rietlamellen passt. Dasselbe gilt für den Teil 28a des unteren Blöckchens 28, welcher zwischen dem oberen Rand des Stegs 26 und dem unteren Rand des Tunnels 11 liegt.In the example in FIG. 3, a shot detection device is attached to the part of the reed protruding outside the cloth edge, for example at a point which lies between the cloth edge and the stretching device. The fastening method shown in FIG. 3 differs from that according to FIGS. 1 and 2 in that there are two fastening flanges 17 'inserted between the reed fins. These fastening flanges, of which only one is visible in the cross-sectional drawing according to FIG. 3. are respectively on the front of the reed 1 by means of an upper and a lower connecting web part 25. 26 connected. The distance between the flanges is chosen so that an upper and a lower block 27 or between. 28 of a suitable translucent plastic part fits. In each block 27 resp. 28 there is a room 29 for receiving a transmitter. a receiver of the shot detection device. The part 27a of the upper block 27, which lies between the lower edge of the web 25 and the upper edge of the tunnel 11, viewed in the direction perpendicular to the plane of the drawing, is narrowed in such a way that it engages between the tongues protruding forward bordering reed slats fits. The same applies to the part 28a of the lower block 28 which lies between the upper edge of the web 26 and the lower edge of the tunnel 11.

Im Unterschied zur Befestigungsweise gemäss Fig. 1, 2 bilden der Riegelbolzen 19' und die als Knebelnocken wirkenden Teile 20' ein Stück. Die Oeffnung 18' ist als ein an einem Ende offener Schlitz ausgeführt und zwar derart, dass der Riegelbolzen 18' von der Unterseite her eingesteckt werden kann. An den exzentrisch gegenüber dem Riegelbolzen 18' liegenden Teilen 20' ist das eine Ende eines biegsamen Elements 30 befestigt, dessen anderes Ende über eine Feder 31 mit einem über die obere Rietschiene 4 hakenden Element 32 verbunden ist. Unter Einfluss der Feder 31 versucht das biegsame Element 30 sich von den exzentrischen Teilen 20' abzuwickeln, wodurch auf diese Teile ein gegen den Uhrzeigersinn gerichtetes Moment ausgeübt wird, welches die Flansche 17', wie in Fig. 3 betrachtet, nach rechts bewegt und dadurch die Blöckchen 27 und 28 an die Vorderseite des Riets anzieht.In contrast to the fastening method according to FIGS. 1, 2, the locking bolt 19 'and the parts 20' acting as toggle cams form one piece. The opening 18 'is designed as a slot open at one end and in such a way that the locking bolt 18' can be inserted from the underside. One end of a flexible element 30 is fastened to the parts 20 'lying eccentrically opposite the locking bolt 18', the other end of which is connected via a spring 31 to an element 32 which hooks over the upper reed rail 4. Under the influence of the spring 31, the flexible element 30 tries to unwind from the eccentric parts 20 ', as a result of which a counterclockwise moment is exerted on these parts, which, as viewed in FIG. 3, moves the flanges 17' to the right and thereby attracts blocks 27 and 28 to the front of the reed.

Claims (5)

1. A device for securing, in a manner adjustable in the weft direction, an auxiliary element to the reed of a shuttleless weaving machine, characterised in that the auxiliary element has at least one flange which extends through between two contiguous reed lamellae on the back of the reed, the auxiliary element being formed at the back of the projecting flange part with an aperture adapted to receive a bolt element of the toggle type.
2. A device according to claim 1, characterised in that the bolt element is in the form of a pin in which a central part in engagement with the projecting flange part is disposed slightly eccentrically of the two end parts of the pin.
3. A device according to claim 2, characterised in that removable and securable bearing or support blocks faceted at least on one side are provided on the pin ends.
4. A device according to claims 1 and 2, - characterised by two flanges formed with an aperture for the bolt pin, the aperture being in the form of a slot open at one end.
5. A device according to claim 4, characterised in that the bolt pin part operative as toggle cam is connected by way of a flexible element applying a torque to the bolt pin to a spring connected at its other end to an element hooking around one edge of the reed.
EP84810230A 1983-07-11 1984-05-11 Device for fixing an auxiliary apparatus on the reed of a shuttleless loom Expired EP0133153B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8302456 1983-07-11
NL8302456A NL8302456A (en) 1983-07-11 1983-07-11 Device for attaching an auxiliary member to the reed of a rinse-less weaving machine.

Publications (2)

Publication Number Publication Date
EP0133153A1 EP0133153A1 (en) 1985-02-13
EP0133153B1 true EP0133153B1 (en) 1986-11-12

Family

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Application Number Title Priority Date Filing Date
EP84810230A Expired EP0133153B1 (en) 1983-07-11 1984-05-11 Device for fixing an auxiliary apparatus on the reed of a shuttleless loom

Country Status (5)

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US (1) US4601313A (en)
EP (1) EP0133153B1 (en)
JP (1) JPS6039449A (en)
DE (1) DE3461309D1 (en)
NL (1) NL8302456A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0638131Y2 (en) * 1985-08-01 1994-10-05 株式会社豊田自動織機製作所 Reed fixing device for shuttleless loom
JPH0410228Y2 (en) * 1985-12-16 1992-03-13
JPH0431269Y2 (en) * 1987-01-10 1992-07-28
US4870997A (en) * 1988-07-01 1989-10-03 Niagara Lockport Industries Inc. Loom with selectively positionable shuttle mechanism
IT1245591B (en) * 1991-03-29 1994-09-29 Somet Soc Mec Tessile PNEUMATIC END TENSIONER FOR AIR FRAMES
DE4213754C1 (en) * 1992-04-25 1993-12-02 Dornier Gmbh Lindauer Device for the pneumatic guiding of turbulent weft ends of an auxiliary fabric strip in air jet weaving machines
DE4443899C1 (en) * 1994-12-09 1995-11-23 Dornier Gmbh Lindauer Jet or gripper loom
EP2273335B8 (en) * 2004-01-21 2013-12-18 iRobot Corporation Method of docking an autonomous robot
BE1019614A3 (en) 2009-07-01 2012-09-04 Picanol DEVICE AND METHOD FOR THE CATCHING AND PIECE OF IMPACT WIRES IN WEAVING MACHINES.
EP2348144A1 (en) * 2010-01-26 2011-07-27 ITEMA (Switzerland) Ltd. Pneumatic stretching device of the weft thread for air-jet weaving looms, with a weft deflecting head arranged inside the launch channel of the reed

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Publication number Priority date Publication date Assignee Title
US1272532A (en) * 1917-02-19 1918-07-16 John Anderson Robison Loom attachment.
NL7108526A (en) * 1971-06-21 1972-12-27
US3744533A (en) * 1971-08-03 1973-07-10 Teijin Ltd Adjustment of filling tension in fluid jet loom and apparatus thereof
NL7206367A (en) * 1972-05-10 1973-11-13
US3901286A (en) * 1973-08-20 1975-08-26 Rueti Te Strake Bv Weft tensioning and cutting means
CH649322A5 (en) * 1981-01-13 1985-05-15 Rueti Te Strake Bv Jet weaving machine.
CH659672A5 (en) * 1982-11-11 1987-02-13 Loepfe Ag Geb Weft thread monitor.

Also Published As

Publication number Publication date
EP0133153A1 (en) 1985-02-13
JPH0577774B2 (en) 1993-10-27
US4601313A (en) 1986-07-22
JPS6039449A (en) 1985-03-01
DE3461309D1 (en) 1987-01-02
NL8302456A (en) 1985-02-01

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