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EP0624672B1 - Weft distributing device for a multiphase linear shed loom - Google Patents

Weft distributing device for a multiphase linear shed loom Download PDF

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Publication number
EP0624672B1
EP0624672B1 EP93810352A EP93810352A EP0624672B1 EP 0624672 B1 EP0624672 B1 EP 0624672B1 EP 93810352 A EP93810352 A EP 93810352A EP 93810352 A EP93810352 A EP 93810352A EP 0624672 B1 EP0624672 B1 EP 0624672B1
Authority
EP
European Patent Office
Prior art keywords
gap
weft
support
order
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93810352A
Other languages
German (de)
French (fr)
Other versions
EP0624672A1 (en
Inventor
Marcel Christe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Itema Switzerland Ltd
Maschinenfabrik Rueti AG
Original Assignee
Sultex AG
Maschinenfabrik Rueti AG
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
Application filed by Sultex AG, Maschinenfabrik Rueti AG filed Critical Sultex AG
Priority to DE59307432T priority Critical patent/DE59307432D1/en
Priority to EP93810352A priority patent/EP0624672B1/en
Priority to US08/239,100 priority patent/US5439037A/en
Priority to JP6100254A priority patent/JPH0748758A/en
Publication of EP0624672A1 publication Critical patent/EP0624672A1/en
Application granted granted Critical
Publication of EP0624672B1 publication Critical patent/EP0624672B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • DTEXTILES; PAPER
    • D03WEAVING
    • D03DWOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms
    • D03D41/005Linear-shed multiphase looms

Definitions

  • the present invention relates to a device for distributing weft threads according to the preamble of claim 1 and a row shed loom with weft distributing device.
  • a device for distributing weft threads onto weft channels of the weaving rotor of a row shed weaving machine has a first part which also rotates with the weaving rotor and has a number of take-over channels for the weft thread feed and a second part which is stationary with respect to the weaving rotor and has a number of connecting channels for the weft thread feed.
  • the first and second parts are arranged coaxially to one another via at least one roller bearing and are held in a working position by means of energy accumulators, such that there is a gap between the first and second parts.
  • the device has the major disadvantage that the width of the gap between the first and second part is fixed to a certain dimension and cannot be changed.
  • the present invention has for its object to provide a device for distributing weft threads, which does not have the disadvantage mentioned.
  • a row shed weaving machine with a weft distributing device is characterized according to the invention by the features of claim 5.
  • FIG. 1 shows a section of a row shed weaving machine with a shaft 1, a weaving rotor 2 and a device for distributing weft threads.
  • the device has an essentially tubular receiving part 5 with a flange 6 which is fastened to the weaving rotor 2 and rotates with the weaving rotor 2.
  • the device comprises an annular first part 7 fastened to the flange and co-rotating with the weaving rotor 2 and an annular second part 8 which is stationary with respect to the first part 7 and which are arranged coaxially and at a distance from one another such that there is a gap 9 between them opposite end faces is present to avoid friction between them.
  • channel-shaped recesses 10, 11, which are open toward the end face, are formed in the form of circular arcs in the opposite end faces of the first or second part 7, 8.
  • the recesses in the first part 7 are connected to the weaving rotor 2 via a channel 12, while the recesses 10 in the second part 8 are connected via channels (not shown) to thread feed devices (also not shown).
  • a radial and axial recess 41 and 42 are present between the annular first part 7 and the flange 6 on the one hand and the circumference of the receiving part 5 on the other hand. This measure causes an automatic fiber fly removal (Fig. 1).
  • the second part 8 is provided with three support units 30, which thus form a three-point support and rest on a shoulder 31 on the receiving part 5.
  • An insert body 32 made of hard metal is arranged on the support point.
  • the support unit 30 consists of a support screw 33 and a ball 35 which is rotatably held at the free end of the support screw 33.
  • the support screw 33 is screwed into a threaded bore, not shown, such that the ball 35 protrudes from the threaded bore.
  • the support screw 33 is assigned an arrangement which comprises two clamping screws 34 and an elongated hole 36, and which is provided at the location in the bearing ring 15 provided for the three-point support.
  • the elongated hole 36 penetrates the bearing ring 15 in the radial direction.
  • the slot 36 is dimensioned such that both the support screws 33 and the clamping screws 34 pass through the slot in the axial direction.
  • the clamping screws 34 are arranged on both sides of the support screws 33 and have a shaft 37 adjacent to the screw head and a threaded section 38 at the free end, which are dimensioned such that the transition section of the thread lies within the elongated hole 36.
  • the elongated hole can be deformed by means of the clamping screws 34, i.e. whose width can be reduced, whereby the game between the threads of the threaded hole in the bearing ring and the support screw screwed therein is canceled.
  • This measure advantageously ensures, on the one hand, that the gap 9 is correctly and precisely adjusted with respect to the gap width and the plane parallelism between the first and second parts 7, 8, and on the other hand that the support screw 33 is fixed and secured.
  • the second part 8 is rotatably mounted on the receiving part 5 via an actuating device 3.
  • an extension 13 is formed on the second part 8, in which a roller bearing 14 is inserted.
  • the rolling bearing 14 is arranged on the other hand on a bearing ring 15 and held thereon by means of a ring 16.
  • the receiving part 5 has at its end opposite the flange 6 a cylindrical projection 17.
  • the bearing ring 15 is axially displaceable and secured against rotation by a wedge guide 18.
  • this wedge guide 18 serves to guide the actuating device 3 with the second part 8 during the axial displacement.
  • six blind bores 19 are formed, which are arranged lying on a circular line at equal intervals.
  • a clamping ring 20 with a radially inward extension 21 is placed at the free end of the extension 17, a clamping ring 20 with a radially inward extension 21 is placed.
  • the clamping ring 20 lies with the extension 21 on the end face of the extension 17 and is secured by a pin 22 which is arranged in the clamping ring 20 and projects into a recess in the extension 17.
  • Blind bores 23 are also formed in the clamping ring 20 and are aligned with the blind bores in the bearing ring 15.
  • Compression springs 24 are arranged in the blind bores 19, 23 and hold the second part 8 connected to the bearing
  • the actuating device 3 has a piston arrangement with a housing part 25 and a piston 26.
  • the housing part 25 is essentially a hollow cylinder with a first section 27 which is screwed to the second part 8 and is mounted on the roller bearing 14, and with a second section 28, in which the piston 26 is slidably arranged to and fro.
  • the piston 26 has a hollow cylindrical section with a sealing ring on the circumference and at one end a flange with a sealing ring on the circumference.
  • the second section 28 has two sections with different internal pressure gauges, so that there is a shoulder into which an inlet channel 29 is formed.
  • the piston 26 is arranged such that the sealing rings arranged on the hollow cylindrical section and on the flange lie sealingly on the inner surfaces of the partial sections and form with the shoulder an annular working chamber into which the inlet channel 29 opens.
  • a device for monitoring the width of the gap 9 between the first and second parts 7 and 8 is provided in a row shed loom with such a device, which is shown in FIG. 3.
  • a sensor nozzle 43 is arranged in the stationary part 8, which is fed with air.
  • a change in the width of the gap 9 causes a change in the dynamic pressure.
  • a change in the dynamic pressure causes the differential pressure switches to switch over at certain pressure values and to trigger electrical signals.
  • the device contains a part 7 which also rotates with the weaving rotor 2 and has takeover channels 11 for weft feed and a part 8 which is stationary with respect to the weaving rotor 2 and has connecting channels 10 for the weft feed. Between the first and second parts 7, 8 three support units 30 are provided, one Form three-point support and keep the first and second parts 7, 8 at a distance to form a gap 9.

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

Description

Die vorliegende Erfindung betrifft eine Vorrichtung zum Verteilen von Schussfäden gemäss dem Oberbegriff des Anspruches 1 sowie eine Reihenfachwebmaschine mit Schussfadenverteilvorrichtung.The present invention relates to a device for distributing weft threads according to the preamble of claim 1 and a row shed loom with weft distributing device.

Aus der EP-A-433 216 ist eine Vorrichtung zum Verteilen von Schussfäden auf Schusskanäle des Webrotors einer Reihenfachwebmaschine bekannt. Die Vorrichtung weist einen mit dem Webrotor mitrotierenden ersten Teil mit einer Anzahl von Uebernahmekanälen für die Schussfadenzufuhr und einen bezüglich dem Webrotor stillstehenden zweiten Teil mit einer Anzahl von Verbindungskanälen für die Schussfadenzufuhr auf. Der erste und zweite Teil sind über mindestens ein Wälzlager koaxial zueinander angeordnet und mittels Kraftspeicher in einer Arbeitsstellung gehalten, derart, dass ein Spalt zwischen dem ersten und zweiten Teil vorhanden ist.From EP-A-433 216 a device for distributing weft threads onto weft channels of the weaving rotor of a row shed weaving machine is known. The device has a first part which also rotates with the weaving rotor and has a number of take-over channels for the weft thread feed and a second part which is stationary with respect to the weaving rotor and has a number of connecting channels for the weft thread feed. The first and second parts are arranged coaxially to one another via at least one roller bearing and are held in a working position by means of energy accumulators, such that there is a gap between the first and second parts.

Die Vorrichtung hat den wesentlichen Nachteil, dass die Breite des Spaltes zwischen dem ersten und zweiten Teil auf ein bestimmtes Mass festgelegt ist und nicht verändert werden kann.The device has the major disadvantage that the width of the gap between the first and second part is fixed to a certain dimension and cannot be changed.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zum Verteilen von Schussfäden zu schaffen, welche den genannten Nachteil nicht aufweist.The present invention has for its object to provide a device for distributing weft threads, which does not have the disadvantage mentioned.

Diese Aufgabe wird erfindungsgemäss mit den Merkmalen im Kennzeichen des Anspruches 1 gelöst.This object is achieved according to the invention with the features in the characterizing part of claim 1.

Die mit der Erfindung erzielbaren Vorteile sind darin zu sehen, dass eine einwandfreie und exakte Einstellung des Spaltes bezüglich der Spaltweite und der Planparallelität gewährleistet ist und dass die Uebergabe und Verteilung der Schussfäden verbessert wird.The advantages achievable with the invention can be seen in the fact that a correct and exact setting of the gap with regard to the gap width and the plane parallelism is ensured and that the transfer and distribution of the weft threads is improved.

Vorteilhafte Ausführungsformen der Erfindung ergeben sich aus den abhängigen Ansprüchen 2 und 4. Eine Reihenfachwebmaschine mit einer Schussfadenverteilvorrichtung ist erfindungsgemäss durch die Merkmale des Anspruches 5 gekennzeichnet.Advantageous embodiments of the invention result from the dependent claims 2 and 4. A row shed weaving machine with a weft distributing device is characterized according to the invention by the features of claim 5.

Nachfolgend wird die Erfindung anhand der beiliegenden Zeichnungen erläutert.The invention is explained below with reference to the accompanying drawings.

Es zeigen:

Fig. 1
einen Schnitt einer Ausführungsform einer erfindungsgemässen Vorrichtung in der Arbeitsstellung;
Fig. 2
eine Ansicht einer justierbaren Abstützeinheit für einen zweiten Teil und
Fig. 3
eine schematische Darstellung einer Spaltüberwachungseinrichtung mittels Staudruckfühlerdüse und Differenzdruckschaltern.
Show it:
Fig. 1
a section of an embodiment of an inventive device in the working position;
Fig. 2
a view of an adjustable support unit for a second part and
Fig. 3
a schematic representation of a gap monitoring device by means of a dynamic pressure sensor nozzle and differential pressure switches.

Die Figur 1 zeigt einen Abschnitt einer Reihenfachwebmaschine mit einer Welle 1, einem Webrotor 2 und einer Vorrichtung zum Verteilen von Schussfäden.FIG. 1 shows a section of a row shed weaving machine with a shaft 1, a weaving rotor 2 and a device for distributing weft threads.

Die Vorrichtung weist einen im wesentlichen rohrförmigen Aufnahmeteil 5 mit einem Flansch 6 auf, der am Webrotor 2 befestigt ist und mit dem Webrotor 2 rotiert.The device has an essentially tubular receiving part 5 with a flange 6 which is fastened to the weaving rotor 2 and rotates with the weaving rotor 2.

Die Vorrichtung enthält einen am Flansch befestigten und mit dem Webrotor 2 mitrotierenden, ringförmigen ersten Teil 7 und einen bezüglichen dem ersten Teil 7 stillstehenden, ringförmigen zweiten Teil 8, die koaxial und im Abstand zueinander angeordnet sind, derart, dass ein Spalt 9 zwischen den einander gegenüberliegenden Stirnflächen vorhanden ist, um eine Reibung zwischen diesen zu vermeiden.The device comprises an annular first part 7 fastened to the flange and co-rotating with the weaving rotor 2 and an annular second part 8 which is stationary with respect to the first part 7 and which are arranged coaxially and at a distance from one another such that there is a gap 9 between them opposite end faces is present to avoid friction between them.

Um die Verteilung der Schussfäden durchzuführen, sind in den gegenüberliegenden Stirnseiten des ersten bzw. zweiten Teiles 7, 8 jeweils zur Stirnseite hin offene rinnenförmige Ausnehmungen 10, 11 in Form von Kreisbogen ausgebildet. Dabei stehen die Ausnehmungen im ersten Teil 7 über einen Kanal 12 mit dem Webrotor 2 in Verbindung während die Ausnehmungen 10 im zweiten Teil 8 über nicht dargestellte Kanäle mit gleichfalls nicht gezeigten Fadenzuführeinrichtungen in Verbindung stehen.In order to carry out the distribution of the weft threads, channel-shaped recesses 10, 11, which are open toward the end face, are formed in the form of circular arcs in the opposite end faces of the first or second part 7, 8. The recesses in the first part 7 are connected to the weaving rotor 2 via a channel 12, while the recesses 10 in the second part 8 are connected via channels (not shown) to thread feed devices (also not shown).

Zwischen dem ringförmigen ersten Teil 7 und dem Flansch 6 einerseits und dem Umfang des Aufnahmeteiles 5 andererseits ist eine radiale und axiale Ausnehmung 41 und 42 vorhanden. Diese Massnahme bewirkt eine selbsttätige Faserflugentfernung (Fig. 1).A radial and axial recess 41 and 42 are present between the annular first part 7 and the flange 6 on the one hand and the circumference of the receiving part 5 on the other hand. This measure causes an automatic fiber fly removal (Fig. 1).

Um den Spalt 9 aufrecht zu erhalten bzw. einzustellen, ist der zweite Teil 8 mit drei Abstützeinheiten 30 versehen, die somit eine Dreipunktauflage bilden und an einer Schulter 31 am Aufnahmeteil 5 anliegen. An der Auflagestelle ist ein Einlagekörper 32 aus Hartmetall angeordnet.In order to maintain or adjust the gap 9, the second part 8 is provided with three support units 30, which thus form a three-point support and rest on a shoulder 31 on the receiving part 5. At the An insert body 32 made of hard metal is arranged on the support point.

Wie die Figur 2 zeigt, besteht die Abstützeinheit 30 aus einer Stützschraube 33 und einer Kugel 35, die am freien Ende der Stützschraube 33 drehbar gehalten ist. Die Stützschraube 33 ist in eine nicht dargestellte Gewindebohrung eingeschraubt derart, dass die Kugel 35 aus der Gewindebohrung herausragt. Der Stützschraube 33 ist eine Anordnung zugeordnet, die zwei Spannschrauben 34 und ein Langloch 36 umfasst, und die an der für die Dreipunktauflage vorgesehenen Stelle im Lagerring 15 vorgesehen ist. Das Langloch 36 durchdringt den Lagerring 15 in radialer Richtung. Das Langloch 36 ist so bemessen, dass sowohl die Stützschrauben 33 als auch die Spannschrauben 34 das Langloch in axialer Richtung durchlaufen. Die Spannschrauben 34 sind beidseits der Stützschrauben 33 angeordnet und weisen angrenzend an den Schraubenkopf einen Schaft 37 und am freien Ende einen Gewindeabschnitt 38 auf, die so bemessen sind, dass der Übergangsabschnitt der Gewinde innerhalb des Langloches 36 liegt. Nach dem Einstellen der Stützschraube 33 kann mittels der Spannschrauben 34 das Langloch verformt, d.h. dessen Breite verringert werden, wodurch das Spiel zwischen den Gewindegängen der Gewindebohrung im Lagerring und der darin eingeschraubten Stützschraube aufgehoben wird. Durch diese Massnahme wird in vorteilhafter Weise einerseits eine einwandfreie und exakte Einstellung des Spaltes 9 bezüglich der Spaltweite und der Planparallelität zwischen dem ersten und zweiten Teil 7, 8 gewährleistet, und andererseits die Stützschraube 33 festgelegt und gesichert.As shown in Figure 2, the support unit 30 consists of a support screw 33 and a ball 35 which is rotatably held at the free end of the support screw 33. The support screw 33 is screwed into a threaded bore, not shown, such that the ball 35 protrudes from the threaded bore. The support screw 33 is assigned an arrangement which comprises two clamping screws 34 and an elongated hole 36, and which is provided at the location in the bearing ring 15 provided for the three-point support. The elongated hole 36 penetrates the bearing ring 15 in the radial direction. The slot 36 is dimensioned such that both the support screws 33 and the clamping screws 34 pass through the slot in the axial direction. The clamping screws 34 are arranged on both sides of the support screws 33 and have a shaft 37 adjacent to the screw head and a threaded section 38 at the free end, which are dimensioned such that the transition section of the thread lies within the elongated hole 36. After adjusting the support screw 33, the elongated hole can be deformed by means of the clamping screws 34, i.e. whose width can be reduced, whereby the game between the threads of the threaded hole in the bearing ring and the support screw screwed therein is canceled. This measure advantageously ensures, on the one hand, that the gap 9 is correctly and precisely adjusted with respect to the gap width and the plane parallelism between the first and second parts 7, 8, and on the other hand that the support screw 33 is fixed and secured.

Durch die Aufhebung des Spieles zwischen den Gewindegängen wird in vorteilhafter Weise eine genaue Einstellung des Spaltes zwischen dem ersten und zweiten Teil 7, 8 in der Grössenordnung von 0.01 mm ermöglicht und aufgrund der Festlegung der Stützschrauben 33 beibehalten. Dadurch wird die einwandfreie Zuführung der Schussfäden bei geringem Luftverlust gewährleistet.By eliminating the play between the threads, a precise adjustment of the gap between the first and second parts 7, 8 in the order of magnitude of 0.01 mm is advantageously made possible and due to the Maintain the support screws 33. This ensures the correct feeding of the weft threads with little air loss.

Der zweite Teil 8 ist über eine Betätigungseinrichtung 3 am Aufnahmeteil 5 drehbar gelagert. Hierzu ist am zweiten Teil 8 ein Ansatz 13 ausgebildet, in den ein Wälzlager 14 eingesetzt ist. Das Wälzlager 14 ist andererseits auf einem Lagerring 15 angeordnet und an diesem mittels eines Ringes 16 gehalten.The second part 8 is rotatably mounted on the receiving part 5 via an actuating device 3. For this purpose, an extension 13 is formed on the second part 8, in which a roller bearing 14 is inserted. The rolling bearing 14 is arranged on the other hand on a bearing ring 15 and held thereon by means of a ring 16.

Der Aufnahmeteil 5 hat an seinem dem Flansch 6 gegenüberliegenden Ende einen zylinderförmigen Ansatz 17. Auf diesen Ansatz ist der Lagerring 15 axial verschiebbar angeordnet und durch eine Keilführung 18 gegen Verdrehen gesichert. Gleichzeitig dient diese Keilführung 18 der Führung von Betätigungsvorrichtung 3 mit dem zweiten Teil 8 während der axialen Verschiebung. In den Lagerring 15 sind sechs Blindbohrungen 19 ausgebildet, die auf einer Kreislinie liegend in gleichen Abständen angeordnet sind. Am freien Ende des Ansatzes 17 ist ein Klemmring 20 mit einem radial nach innen gerichteten Ansatz 21 aufgesetzt. Der Klemmring 20 liegt mit dem Ansatz 21 an der Stirnseite des Ansatzes 17 an und ist durch einen Stift 22 gesichert, der im Klemmring 20 angeordnet und in eine Ausnehmung im Ansatz 17 hineinragt. Im Klemmring 20 sind ebenfalls Blindbohrungen 23 ausgebildet, die mit den Blindbohrungen im Lagerring 15 fluchten. In den Blindbohrungen 19, 23 sind Druckfedern 24 angeordnet, die den mit dem Lagerring 15 verbundenen zweiten Teil 8 in der Arbeitsstellung halten.The receiving part 5 has at its end opposite the flange 6 a cylindrical projection 17. On this approach, the bearing ring 15 is axially displaceable and secured against rotation by a wedge guide 18. At the same time, this wedge guide 18 serves to guide the actuating device 3 with the second part 8 during the axial displacement. In the bearing ring 15 six blind bores 19 are formed, which are arranged lying on a circular line at equal intervals. At the free end of the extension 17, a clamping ring 20 with a radially inward extension 21 is placed. The clamping ring 20 lies with the extension 21 on the end face of the extension 17 and is secured by a pin 22 which is arranged in the clamping ring 20 and projects into a recess in the extension 17. Blind bores 23 are also formed in the clamping ring 20 and are aligned with the blind bores in the bearing ring 15. Compression springs 24 are arranged in the blind bores 19, 23 and hold the second part 8 connected to the bearing ring 15 in the working position.

Um den zweiten Teil 8 zu verschieben, weist die Betätigungseinrichtung 3 eine Kolbenanordnung mit einem Gehäuseteil 25 und einem Kolben 26 auf. Der Gehäuseteil 25 ist im wesentlichen ein Hohlzylinder mit einem ersten Abschnitt 27, der mit dem zweiten Teil 8 verschraubt und auf dem Wälzlager 14 gelagert ist, und mit einem zweiten Abschnitt 28, in welchem der Kolben 26 hin und her verschiebbar angeordnet ist.In order to move the second part 8, the actuating device 3 has a piston arrangement with a housing part 25 and a piston 26. The housing part 25 is essentially a hollow cylinder with a first section 27 which is screwed to the second part 8 and is mounted on the roller bearing 14, and with a second section 28, in which the piston 26 is slidably arranged to and fro.

Der Kolben 26 hat einen hohlzylinderförmigen Abschnitt mit einem Dichtungsring am Umfang und an einem Ende einen Flansch mit einem Dichtungsring am Umfang. Der zweite Abschnitt 28 hat zwei Teilabschnitte mit unterschiedlichem Innendruckmesser, so dass eine Schulter vorhanden ist, in welche ein Einlasskanal 29 ausgebildet ist. Der Kolben 26 ist so angeordnet, dass die am hohlzylinderförmigen Abschnitt und am Flansch angeordneten Dichtungsringe an den Innenflächen der Teilabschnitte dichtend anliegen und mit der Schulter eine ringförmige Arbeitskammer bilden, in welche der Einlasskanal 29 mündet.The piston 26 has a hollow cylindrical section with a sealing ring on the circumference and at one end a flange with a sealing ring on the circumference. The second section 28 has two sections with different internal pressure gauges, so that there is a shoulder into which an inlet channel 29 is formed. The piston 26 is arranged such that the sealing rings arranged on the hollow cylindrical section and on the flange lie sealingly on the inner surfaces of the partial sections and form with the shoulder an annular working chamber into which the inlet channel 29 opens.

Um eine einwandfreie Verteilung der Schussfäden zu gewährleisten, wird bei einer Reihenfachwebmaschine mit einer derartigen Vorrichtung eine Einrichtung zur Überwachung der Breite des Spaltes 9 zwischen dem ersten und zweiten Teil 7 und 8 vorgesehen, die in Figur 3 dargestellt ist.In order to ensure a correct distribution of the weft threads, a device for monitoring the width of the gap 9 between the first and second parts 7 and 8 is provided in a row shed loom with such a device, which is shown in FIG. 3.

Wie die Figur 3 zeigt, ist in den stillstehenden Teil 8 eine Fühlerdüse 43 angeordnet, welche mit Luft gespeist wird. Eine Änderung der Breite des Spaltes 9 bewirkt eine Veränderung des Staudrucks. Eine Änderung des Staudrucks bewirkt, dass die Differenzdruckschalter bei bestimmten Druckwerten umschalten und elektrische Signale auslösen.As FIG. 3 shows, a sensor nozzle 43 is arranged in the stationary part 8, which is fed with air. A change in the width of the gap 9 causes a change in the dynamic pressure. A change in the dynamic pressure causes the differential pressure switches to switch over at certain pressure values and to trigger electrical signals.

Die Vorrichtung enthält einen mit dem Webrotor 2 mitrotierenden Teil 7 mit Übernahmekanälen 11 für Schussfadenzufuhr und einen bezüglich dem Webrotor 2 stillstehenden Teil 8 mit Verbindungskanälen 10 für die Schussfadenzufuhr. Zwischen dem ersten und zweiten Teil 7, 8 sind drei Abstützeinheiten 30 vorgesehen, die eine Dreipunktauflage bilden und den ersten und zweiten Teil 7, 8 auf Abstand halten, um einen Spalt 9 zu bilden.The device contains a part 7 which also rotates with the weaving rotor 2 and has takeover channels 11 for weft feed and a part 8 which is stationary with respect to the weaving rotor 2 and has connecting channels 10 for the weft feed. Between the first and second parts 7, 8 three support units 30 are provided, one Form three-point support and keep the first and second parts 7, 8 at a distance to form a gap 9.

Dadurch wird in vorteilhafter Weise die Reibung zwischen dem ersten und zweiten Teil 7, 8 verringert und gleichzeitig die Übergabe und Verteilung der Schussfäden verbessert.This advantageously reduces the friction between the first and second parts 7, 8 and at the same time improves the transfer and distribution of the weft threads.

Claims (6)

  1. A device for the distribution of weft threads to weft ducts of the rotor of a series shed loom, which device comprises a first part (7) rotating with the rotor (2) and having a number of transfer ducts (11) for the weft thread supply and a second part (8) fixed with respect to the rotor and having a number of connecting ducts (10) for the weft thread supply, which via at least one rolling bearing (14) are disposed coaxially to one another and which are retained by means of energy storing devices (23) in an operating position,
    characterised in that at least three support units (30) are provided, which form a three-point support in order to keep the first and second parts (7, 8) spaced apart and to create a gap (9),
    and in that the support units (30) are adjustable in order to adjust the width of the gap (9).
  2. A device according to Claim 1,
    characterised in that an arrangement is associated with each support unit (30) in order firstly to adjust the support unit (30) free from play and secondly to fix and to secure it in a predetermined position.
  3. A device according to one of Claims 1 or 2,
    characterised in that the support units (30) are connected in a rotationally secure manner to the first part (7).
  4. A device according to Claim 1,
    characterised in that the rolling bearing (14) is a cross roller bearing or a thin ring ball bearing in order to effect a play-free interaction of the first and second parts (7, 8).
  5. A series shed loom having an air-jet picking system and having a device according to one of Claims 1 to 4,
    characterised by a mechanism for monitoring the width of the gap (9) between the first and second part (7, 8).
  6. A loom according to Claim 5,
    characterised in that the mechanism comprises a sensor nozzle (43), which is disposed outside the connecting ducts (10) in the second part (8), through which an air stream discharges into the gap (9), a signal generator, which are in effective connection with the sensor nozzle (43), and indicating elements (46), which are connected to the signal generator (45), to indicate predetermined pressure states.
EP93810352A 1993-05-13 1993-05-13 Weft distributing device for a multiphase linear shed loom Expired - Lifetime EP0624672B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59307432T DE59307432D1 (en) 1993-05-13 1993-05-13 Weft distributing device for a row shed weaving machine and row shed weaving machine with weft dividing device
EP93810352A EP0624672B1 (en) 1993-05-13 1993-05-13 Weft distributing device for a multiphase linear shed loom
US08/239,100 US5439037A (en) 1993-05-13 1994-05-06 Weft thread distribution device for a series shed loom
JP6100254A JPH0748758A (en) 1993-05-13 1994-05-13 Weft delivery apparatus used in loom where warp openings are arranged in series

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93810352A EP0624672B1 (en) 1993-05-13 1993-05-13 Weft distributing device for a multiphase linear shed loom

Publications (2)

Publication Number Publication Date
EP0624672A1 EP0624672A1 (en) 1994-11-17
EP0624672B1 true EP0624672B1 (en) 1997-09-24

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EP93810352A Expired - Lifetime EP0624672B1 (en) 1993-05-13 1993-05-13 Weft distributing device for a multiphase linear shed loom

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US (1) US5439037A (en)
EP (1) EP0624672B1 (en)
JP (1) JPH0748758A (en)
DE (1) DE59307432D1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU5268096A (en) * 1995-06-02 1996-12-18 Sulzer Ruti Ag Process and device for inserting a weft thread into a shed c ourse loom
JP3498799B2 (en) * 1995-06-02 2004-02-16 ズルテックス アクチェンゲゼルシャフト Weft distribution device for a series of shed weaving machines
JP2000064154A (en) * 1998-08-19 2000-02-29 Sulzer Rueti Ag Weft insertion device for serial shed type weaving machine
EP0980923A1 (en) * 1998-08-19 2000-02-23 Sulzer Rüti Ag Device for the insertion of weft threads in a multi-phase loom and multi-phase loom with such device
EP1111108B1 (en) * 1999-12-22 2004-06-23 Sultex AG Stationary thread guiding element
DE50006883D1 (en) 1999-12-22 2004-07-29 Sultex Ag Rueti Stationary thread guide element

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768213A (en) * 1972-03-16 1973-10-30 Toyoda Machine Works Ltd Grinding machine with a feed control device
US4388951A (en) * 1979-09-27 1983-06-21 Bentley Weaving Machinery Limited Weaving looms having rotary shed forming drums and beat up mechanisms therefor
EP0143860B1 (en) * 1983-12-01 1986-09-03 Maschinenfabrik Sulzer-Rüti Ag Device for preparing the weft in multiple longitudinal traversing shed weaving machines
EP0143859B1 (en) * 1983-12-01 1987-03-11 Maschinenfabrik Sulzer-Rüti Ag Weaving rotor for a linear shed multiphase pneumatic loom
DE3373504D1 (en) * 1983-12-01 1987-10-15 Rueti Ag Maschf Weft cutter for looms, especially for linear multiple shed looms
JP2848684B2 (en) * 1989-11-16 1999-01-20 ゲブリユーダー ズルツアー アクチエンゲゼルシヤフト Weft distribution mechanism

Also Published As

Publication number Publication date
JPH0748758A (en) 1995-02-21
US5439037A (en) 1995-08-08
DE59307432D1 (en) 1997-10-30
EP0624672A1 (en) 1994-11-17

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