EP1567698A1 - Method for improving the feeding behavior of a weft yarn, especially a weft yarn made of synthetic filaments, during the production of fabrics on jet looms, particularly pneumatic jet looms, and jet loom for carrying out said method - Google Patents

Method for improving the feeding behavior of a weft yarn, especially a weft yarn made of synthetic filaments, during the production of fabrics on jet looms, particularly pneumatic jet looms, and jet loom for carrying out said method

Info

Publication number
EP1567698A1
EP1567698A1 EP03750291A EP03750291A EP1567698A1 EP 1567698 A1 EP1567698 A1 EP 1567698A1 EP 03750291 A EP03750291 A EP 03750291A EP 03750291 A EP03750291 A EP 03750291A EP 1567698 A1 EP1567698 A1 EP 1567698A1
Authority
EP
European Patent Office
Prior art keywords
weft yarn
weft
clamping device
mixing tube
jet loom
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.)
Withdrawn
Application number
EP03750291A
Other languages
German (de)
French (fr)
Inventor
Adnan Wahhoud
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lindauer Dornier GmbH
Original Assignee
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
Application filed by Lindauer Dornier GmbH filed Critical Lindauer Dornier GmbH
Publication of EP1567698A1 publication Critical patent/EP1567698A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • D03D47/3026—Air supply systems
    • D03D47/3053—Arrangements or lay out of air supply systems
    • 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
    • D03D47/3006—Construction of the nozzles
    • D03D47/3013—Main nozzles
    • 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
    • D03D47/3026—Air supply systems
    • D03D47/3033—Controlling the air supply

Definitions

  • Jet weaving machines in particular air jet weaving machines and jet weaving machines for carrying out the method
  • the invention relates to a method for improving the insertion behavior of a weft yarn, in particular synthetic filament weft yarn in the manufacture of fabrics on jet weaving machines, in particular air jet weaving machines according to the features of the preamble of claim 1.
  • the invention further relates to a jet weaving machine, in particular air jet weaving machine, for carrying out the method with pattern-controlled insertion of the gun.
  • a method, which is obviously used by the applicant, for dangling weft yarns that have not been weft or only partially weft, in particular synthetic filament weft yarns, and a weaving machine for carrying out the method is the subject of the DE patent application registered under the file number 102 09 278.8.
  • a length section of a weft chamfer which extends from the entrance of the main blower nozzle to the outlet of the mixing tube of the main blower nozzle is subjected to a tangling process at its end region, that is to say close to the outlet of the mixing tube of the main blower nozzle.
  • This measure means that the weft yarn is wound more or less unintentionally into the injector of the main blower and partly up to the pre-winder.
  • the holding air which is necessarily directed at the weft yarn in the region of the main blowing nozzle during a waiting time of the weft game, the dangling is partially dissolved again.
  • the superimposition of these processes leads on the one hand to unwanted detachment and tearing of filaments, in particular in the case of yarns that are sensitive to tearing.
  • the holding air and the tangling process change the weft structure to a length that becomes part of the fabric after the weft has been inserted.
  • the quality of the fabric produced is significantly affected.
  • the object of the invention when improving the insertion behavior of a weft yarn, to limit the modification of the weft yarn resulting from a known tangling process in the mixing tube of a main blowing nozzle, in particular with regard to a harmful change in the weft yarn structure, to a weft yarn length which belongs to the later weft yarn waste , and to dispense with the holding process of the weft yarn with holding air.
  • the object is essentially achieved in that a length of the weft yarn remaining after the insertion of a weft yarn into a shed in the main blower nozzle is clamped in one direction by a clamping device in the direction of the weft insertion after the injector of the main blower nozzle, then the in the length of the weft yarn entered into the shed is tied off by closing the shed and that the weft yarn is subjected to a tangling process on the length remaining between the clamping device and the binding on the entry side during a predetermined angle of rotation range of the main loom shaft.
  • the tangling process begins before the inserted weft yarn is cut off from the ready-made weft yarn, at approximately 320 ° of the angle of rotation of the weaving machine main shaft.
  • the method according to the invention is carried out on a jet loom, in particular an air jet loom with a pattern-controlled entry of the weft game.
  • the air jet weaving machines comprise at least one main blowing nozzle with injector and mixing tube, a clamping device arranged in the mixing tube in the direction of the weft insertion after the injector, for clamping the weft chamois, a banging device arranged in the mixing tube in the direction of the weft insertion or on the output side on the mixing tube and means for training a weaving shed and to bring about a technical closure.
  • a clamping device which is arranged in particular in the mixing tube of the main blower nozzle, can be a central lock in the form of a pneumatic or hydraulic muscle.
  • a clamping device can also be a pneumatic or hydraulic muscle and two lamella-like parts integrated into the muscle and designed as clamping means, which consist of resilient material, which clamping means together with the muscle form the clamping device.
  • two lamella-like parts preferably made of resilient material, can be provided as the clamping device, the position being controlled by controllable means at least one of the two lamellar parts is adjustable relative to the other lamellar part.
  • At least one of the lamellar parts can be designed as a piezo element, or at least one of the lamellar parts can be assigned an energizable electromagnetic means.
  • one of the aforementioned clamping devices is enclosed by a chamber of a housing, which housing is arranged between a first and a second mixing tube section of the mixing tube of the main blow nozzle.
  • the dangling device can be a device previously used by the applicant, in which the mixing tube has at least one dangling opening which runs transversely to the direction of insertion of the weft thread and opens into the interior of the mixing tube and which is connected to a pneumatic pressure source via at least one controllable solenoid valve is.
  • the drawing shows a main blower 1 with a clamping device 6 for the firing gun 7, which is arranged after the injector 2 of the main blower 1 between a first mixing tube section 4 and a second mixing tube section 5 of a mixing tube 3.
  • the clamping device 6 is designed here in the form of a pneumatic muscle 8.
  • the pneumatic muscle 8 is enclosed by a pressurizable chamber 9 of a housing 10.
  • Compressed air is conveyed into the chamber 9 from a pneumatic pressure source 14 via an electrically controllable magnetic directional valve 11 and via the pressure lines 12, 13.
  • the muscle 8 constricts the weft yarn approximately in the longitudinal center axis of the mixing tube 3.
  • the weft yarn 7 is held clamped for a predetermined period of time.
  • the muscle 8 relaxes, whereby the weft 7 is released for entry, according to the directional arrow 15, into a shed, not shown.
  • a known dancing device 16 is arranged on the second mixing tube section 5.
  • the dangling device 16 has a compressed air connection 17 transversely to the central longitudinal axis of the mixing tube 3, which opens into a transverse bore 18 of the mixing tube section 5.
  • An electrically controlled solenoid directional control valve 19 connects the lever device 16 to a pneumatic pressure source 22 via the pressure lines 20, 21. By switching the solenoid directional control valve 19 from the switching position A to the viewing position B, the tangling process is interrupted.

Abstract

The invention relates to a method for improving the feeding behavior of a weft yarn, especially a weft yarn made of synthetic filaments, during the production of fabrics on jet looms, particularly pneumatic jet looms. The aim of the inventive method is to limit the modification of the weft yarn, especially regarding a damaging change in the weft yarn structure, which results from a previously known intermingling process in the mixing tube of a main blow nozzle, to a length that will ultimately be part of the wasted weft yarn while dispensing with the holding process of the weft yarn by means of holding air. Said aim is achieved by the fact that the weft yarn (7) that remains in the main blow nozzle (1) is clamped by a clamping device (6) downstream of the injector (2) of the main blow nozzle (1) in the feeding direction (15) of the weft while the length of the weft yarn (7), which is introduced into the warp shed, is tied by closing the warp shed, whereupon the weft yarn (7) is subjected to an intermingling process along the length that remains between the clamping device (6) and the tie located at the feeding end as long as the angle of rotation of the main shaft of the loom lies within a predetermined range.

Description

Verfahren zum Verbessern des Eintragverhaltens eines Schussgams, insbesondere synthetisches Filament-Schussgarn bei der Gewebeherstellung auf Process for improving the insertion behavior of a weft yarn, in particular synthetic filament weft yarn in the manufacture of fabrics
Düsenwebmaschinen, insbesondere Luftdüsenwebmaschinen und Düsenwebmaschine zur Durchführung des VerfahrensJet weaving machines, in particular air jet weaving machines and jet weaving machines for carrying out the method
Die Erfindung betrifft ein Verfahren zum Verbessern des Eintragverhaltens eines Schussgarns, insbesondere synthetisches Filament-Schussgarn bei der Gewebeherstellung auf Düsenwebmaschinen, insbesondere Luftdüsenwebmaschinen nach den Merkmalen des Oberbegriffs von Patentanspruch 1. Die Erfindung betrifft ferner eine Düsenwebmaschine, insbesondere Luftdüsenwebmaschine zur Durchführung des Verfahrens mit mustergesteuertem Eintrag des Schussgams.The invention relates to a method for improving the insertion behavior of a weft yarn, in particular synthetic filament weft yarn in the manufacture of fabrics on jet weaving machines, in particular air jet weaving machines according to the features of the preamble of claim 1. The invention further relates to a jet weaving machine, in particular air jet weaving machine, for carrying out the method with pattern-controlled insertion of the gun.
Ein von der Anmelderin offenkundig benutztes Verfahren zum Tängeln von nicht getängelten oder nur teilweise getängelten Schussgarnen, insbesondere synthetischen Filament-Schussgamen und eine Webmaschine zur Verfahrensdurchführung ist Gegenstand der unter dem Aktenzeichen 102 09 278.8 registrierten DE-Patentanmeldung.A method, which is obviously used by the applicant, for dangling weft yarns that have not been weft or only partially weft, in particular synthetic filament weft yarns, and a weaving machine for carrying out the method is the subject of the DE patent application registered under the file number 102 09 278.8.
Nach dem Gegenstand der vorgenannten Patentanmeldung wird ein sich vom Eingang der Hauptblasduse bis zum Ausgang des Mischrohres der Hauptblasduse erstreckender Längenabschnitt eines Schussgams an dessen Endbereich, also nahe am Ausgang des Mischrohres der Hauptblasduse, einem Tangelprozess unterzogen. Diese Maßnahme führt dazu, dass das Schussgarn bis in den Injektor der Hauptblasduse hinein und zum Teil bis zum Vorspuler mehr oder weniger ungewollt getängelt wird. Durch eine notwendigerweise während einer Wartezeit des Schussgames im Bereich der Hauptblasduse auf das Schussgarn gerichtete sogenannte Halteluft wird die Tängelung teilweise wieder aufgelöst. Die Überlagerung dieser Prozesse (Halten des Schussgarnes mit Halteluft und Tängeln mit einem Luftstrom) führt einerseits insbesondere bei reissempfindlichen Garnen zum unerwünschten Herauslösen und Abreissen von Filamenten.According to the subject of the abovementioned patent application, a length section of a weft chamfer which extends from the entrance of the main blower nozzle to the outlet of the mixing tube of the main blower nozzle is subjected to a tangling process at its end region, that is to say close to the outlet of the mixing tube of the main blower nozzle. This measure means that the weft yarn is wound more or less unintentionally into the injector of the main blower and partly up to the pre-winder. By means of a so-called holding air which is necessarily directed at the weft yarn in the region of the main blowing nozzle during a waiting time of the weft game, the dangling is partially dissolved again. The superimposition of these processes (holding the weft yarn with holding air and buffeting with an air stream) leads on the one hand to unwanted detachment and tearing of filaments, in particular in the case of yarns that are sensitive to tearing.
Andererseits wird durch die Halteluft und durch den Tangelprozess die Schussgarnstruktur auf einer Länge verändert, die nach dem Eintrag des Schussgarnes Bestandteil des Gewebes wird. Die Qualität des hergestellten Gewebes ist dadurch in erheblichen Maße beeinträchtigt.On the other hand, the holding air and the tangling process change the weft structure to a length that becomes part of the fabric after the weft has been inserted. The quality of the fabric produced is significantly affected.
Vor diesem Hintergrund ist es Aufgabe der Erfindung, bei Verbesserung des Eintragverhaltens eines Schussgarnes die aus einem bekannten Tangelprozess im Mischrohr einer Hauptblasduse resultierende Modifikation des Schussgarnes, insbesondere im Hinblick auf eine schädliche Veränderung der Schussgarnstruktur, auf eine Schussgarnlänge zu begrenzen, die zum späteren Schussgarnabfall gehört, und auf den Haltevorgang des Schussgarnes mit Halteluft zu verzichten. Nach dem erfindungsgemäßen Verfahren wird die Aufgabe im wesentlichen dadurch gelöst, dass eine nach dem Eintragen eines Schussgarnes in ein Webfach in der Hauptblasduse verbleibende Länge des Schussgarnes in Richtung des Schusseintrags nach dem Injektor der Hauptblasduse an einer Stelle von einer Klemmeinrichtung geklemmt wird, daraufhin die in das Webfach eingetragene Länge des Schussgams durch Schließen des Webfaches abgebunden wird und dass das Schussgarn auf der zwischen der Klemmeinrichtung und der eintragsseitigen Abbindung verbleibenden Länge während eines vorbestimmten Drehwinkelbereiches der Webmaschinen- Hauptwelle einem Tangelprozess unterzogen wird. Damit wird der Vorteil erreicht, dass bei einem getängelten Schussgarn dieTängelung nicht durch die Halteluft wieder aufgelöst wird, dass auf Halteluft vollständig verzichtet werden kann und damit der Verbrauch an Druckluft reduziert und die Energiebilanz verbessert wird. Des weiteren sind die mit der bekannten Lösung einhergehenden Nachteile vermieden.Against this background, it is the object of the invention, when improving the insertion behavior of a weft yarn, to limit the modification of the weft yarn resulting from a known tangling process in the mixing tube of a main blowing nozzle, in particular with regard to a harmful change in the weft yarn structure, to a weft yarn length which belongs to the later weft yarn waste , and to dispense with the holding process of the weft yarn with holding air. According to the method according to the invention, the object is essentially achieved in that a length of the weft yarn remaining after the insertion of a weft yarn into a shed in the main blower nozzle is clamped in one direction by a clamping device in the direction of the weft insertion after the injector of the main blower nozzle, then the in the length of the weft yarn entered into the shed is tied off by closing the shed and that the weft yarn is subjected to a tangling process on the length remaining between the clamping device and the binding on the entry side during a predetermined angle of rotation range of the main loom shaft. This has the advantage that in the case of a weft yarn that has been wefted, the wobble is not dissolved again by the holding air, that the holding air can be dispensed with completely and thus the consumption of compressed air is reduced and the energy balance is improved. Furthermore, the disadvantages associated with the known solution are avoided.
In Ausgestaltung des erfindungsgemäßen Verfahrens beginnt der Tangelprozess vor dem Abschneiden des eingetragenen Schussgarnes von dem bereitgehaltenen Schussgarn, und zwar bei etwa 320° des Drehwinkels der Webmaschinen-Hauptwelle.In an embodiment of the method according to the invention, the tangling process begins before the inserted weft yarn is cut off from the ready-made weft yarn, at approximately 320 ° of the angle of rotation of the weaving machine main shaft.
Ferner sei erwähnt, dass der Tangelprozess, wie aus der Anwendung des Verfahrens bekannt, im Mischrohr der Hauptblasduse ausgeführt wird.It should also be mentioned that the tangling process, as is known from the application of the method, is carried out in the mixing tube of the main blowing nozzle.
Das erfindungsgemäße Verfahren wird auf einer Düsenwebmaschine, insbesondere Luftdüsenwebmaschine mit mustergesteuertem Eintrag des Schussgames durchgeführt. Nach Patentanspruch 6 umfasstdie Luftdüsenwebmaschinen zumindest eine Hauptblasduse mit Injektor und Mischrohr, eine in Richtung des Schusseintrags nach dem Injektor im Mischrohr angeordnete Klemmeinrichtung zum Klemmen des Schussgams, eine in Richtung des Schusseintrags nach der Klemmeinrichtung im Mischrohr oder ausgangsseitig am Mischrohr angeordnete Tängeleinrichtung sowie Mittel zur Ausbildung eines Webfaches und zur Herbeiführung eines Fachschlusses. Eine insbesondere im Mischrohr der Hauptblasduse • eingeordnete Klemmeinrichtung kann erfindungsgemäß ein Zentralverschluss in Form eines pneumatischen oder hydraulischen Muskels sein.The method according to the invention is carried out on a jet loom, in particular an air jet loom with a pattern-controlled entry of the weft game. According to claim 6, the air jet weaving machines comprise at least one main blowing nozzle with injector and mixing tube, a clamping device arranged in the mixing tube in the direction of the weft insertion after the injector, for clamping the weft chamois, a banging device arranged in the mixing tube in the direction of the weft insertion or on the output side on the mixing tube and means for training a weaving shed and to bring about a technical closure. According to the invention, a clamping device, which is arranged in particular in the mixing tube of the main blower nozzle, can be a central lock in the form of a pneumatic or hydraulic muscle.
Eine Klemmeinrichtung können ferner ein pneumatischer oder hydraulischer Muskel und zwei im Muskel integrierte, lamellenartig ausgebildete Teile als Klemmmittel sein, die aus federelastischem Material bestehen, welche Klemmmittel zusammen mit dem Muskel die Klemmeinrichtung bilden.A clamping device can also be a pneumatic or hydraulic muscle and two lamella-like parts integrated into the muscle and designed as clamping means, which consist of resilient material, which clamping means together with the muscle form the clamping device.
Darüber hinaus können als Klemmeinrichtung zwei aus vorzugsweise federelastischem Material bestehende lamellenartige Teile vorgesehen sein, wobei durch steuerbare Mittel die Lage wenigstens eines der beiden lamellenartigen Teile gegenüber dem anderen lamellenartigen Teil verstellbar ist. Wenigstens eines der lamellenartigen Teile kann dabei als Piezo-Element ausgebildet sein, oder es kann wenigstens einen der lamellenartigen Teile ein bestrombares elektromagnetisches Mittel zugeordnet sein.In addition, two lamella-like parts, preferably made of resilient material, can be provided as the clamping device, the position being controlled by controllable means at least one of the two lamellar parts is adjustable relative to the other lamellar part. At least one of the lamellar parts can be designed as a piezo element, or at least one of the lamellar parts can be assigned an energizable electromagnetic means.
In weiterer Ausgestaltung der Erfindung ist eine der vorgenannten Klemmeinrichtungen von einer Kammer eines Gehäuses umschlossen, welches Gehäuse zwischen einem ersten und einem zweiten Mischrohrabschnitt des Mischrohres der Hauptblasduse eingeordnet ist. Bei der Tängeleinrichtung kann es sich um eine durch die Anmelderin vorbenutzte Einrichtung handeln, bei welcher zum Tängeln das Mischrohr wenigstens eine quer zur Eintragsrichtung des Schussfadens verlaufende und in den Innenraum des Mischrohres mündende Tängelöffnung besitzt, die über wenigstens ein steuerbares Magnetventil an eine pneumatische Druckquelle angeschlossen ist.In a further embodiment of the invention, one of the aforementioned clamping devices is enclosed by a chamber of a housing, which housing is arranged between a first and a second mixing tube section of the mixing tube of the main blow nozzle. The dangling device can be a device previously used by the applicant, in which the mixing tube has at least one dangling opening which runs transversely to the direction of insertion of the weft thread and opens into the interior of the mixing tube and which is connected to a pneumatic pressure source via at least one controllable solenoid valve is.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert.The invention is explained in more detail below using an exemplary embodiment.
Die Zeichnung zeigt eine Hauptblasduse 1 mit einer nach dem Injektor 2 der Hauptblasduse 1 zwischen einem ersten Mischrohrabschnitt 4 und einem zweiten Mischrohrabschnitt 5 eines Mischrohres 3 eingeordneten Klemmeinrichtung 6 für das Schussgam 7. Die Klemmeinrichtung 6 ist hier in Form eines pneumatischen Muskels 8 ausgebildet. Der pneumatische Muskel 8 ist von einer mit Druck beaufschlagbaren Kammer 9 eines Gehäuses 10 umschlossen.The drawing shows a main blower 1 with a clamping device 6 for the firing gun 7, which is arranged after the injector 2 of the main blower 1 between a first mixing tube section 4 and a second mixing tube section 5 of a mixing tube 3. The clamping device 6 is designed here in the form of a pneumatic muscle 8. The pneumatic muscle 8 is enclosed by a pressurizable chamber 9 of a housing 10.
Über ein elektrisch ansteuerbares Magnet-Wegeventil 11 und über die Druckleitungen 12,13 wird von einer pneumatischen Druckquelle 14 Druckluft in die Kammer 9 gefördert. Der Muskel 8 schnürt das Schussgam etwa in der Längsmittenachse des Mischrohres 3 ein.Compressed air is conveyed into the chamber 9 from a pneumatic pressure source 14 via an electrically controllable magnetic directional valve 11 and via the pressure lines 12, 13. The muscle 8 constricts the weft yarn approximately in the longitudinal center axis of the mixing tube 3.
Das Schussgarn 7 wird für eine vorbestimmte Zeitdauer geklemmt gehalten. Durch Umschalten des Magnet-Wegeventils 11 aus der Schaltstellung A in die Schaltstellung B entspannt der Muskel 8, wodurch das Schussgam 7 zum Eintrag, entsprechend Richtungspfeil 15, in ein nicht dargestelltes Webfach freigegeben wird. Nach der Klemmeinrichtung 6 ist an dem zweiten Mischrohrabschnitt 5 eine an sich bekannte Tängeleinrichtung 16 angeordnet.The weft yarn 7 is held clamped for a predetermined period of time. By switching the solenoid directional valve 11 from the switching position A to the switching position B, the muscle 8 relaxes, whereby the weft 7 is released for entry, according to the directional arrow 15, into a shed, not shown. After the clamping device 6, a known dancing device 16 is arranged on the second mixing tube section 5.
Die Tängeleinrichtung 16 besitzt quer zur Mittenlängsachse des Mischrohres 3 einen Druckluftanschluss 17, der in eine Querbohrung 18 des Mischrohrabschnittes 5 mündet. Ein elektrisch gesteuertes Magnet-Wegeventil 19 verbindet die Tängeleinrichtung 16 über die Druckleitungen 20,21 mit einer pneumatischen Druckquelle 22. Durch Umschalten des Magnet- Wegeventils 19 aus der Schaltstellung A in die Sehaltstellung B wird der Tangelprozess unterbrochen. The dangling device 16 has a compressed air connection 17 transversely to the central longitudinal axis of the mixing tube 3, which opens into a transverse bore 18 of the mixing tube section 5. An electrically controlled solenoid directional control valve 19 connects the lever device 16 to a pneumatic pressure source 22 via the pressure lines 20, 21. By switching the solenoid directional control valve 19 from the switching position A to the viewing position B, the tangling process is interrupted.

Claims

Patentansprüche claims
1. Verfahren zum Verbessern des Eintragverhaltens eines Schussgarns, insbesondere synthetisches Filament-Schussgarn bei der Gewebeherstellung auf Düsenwebmaschinen, wonach das Schussgam bei einem ersten vorbestimmten Drehwinkelbereich der Webmaschinen- Hauptwelle in ein durch Kettfäden gebildetes Webfach von einer Hauptblasduse eingetragen und auszugseitig des Webfaches bei einem zweiten vorbestimmten Drehwinkelbereich der Webmaschinen-Hauptwelle empfangen wird, daraufhin das in der Hauptblasduse verbleibende Schussgam in Richtung des Schusseintrags nach dem Injektor der Hauptblasduse von einer Klemmeinrichtung geklemmt wird und die in das Webfach eingetragene Länge des Schussgarns durch Schließen des Webfaches abgebunden wird und nachfolgend das Schussgam auf der zwischen der Klemmeinrichtung und dereintragseitigen Abbindung verbleibenden Länge während eines vorbestimmten dritten Drehwinkelbereiches der Webmaschinen-Hauptwelle einem Tangelprozess unterzogen wird.1. A method for improving the insertion behavior of a weft yarn, in particular synthetic filament weft yarn in the manufacture of fabrics on jet looms, according to which the weft yarn is inserted into a loom formed by warp threads by a main blower and pulled out of the loom at a second at a first predetermined angle of rotation range of the main loom shaft predetermined range of rotation angle of the main loom shaft is received, then the weft remaining in the main blower is clamped in the direction of the weft insertion after the injector of the main blower by a clamping device and the length of the weft yarn entered in the shed is tied off by closing the shed and subsequently the weft is opened the length remaining between the clamping device and the binding on the entry side is subjected to a tangling process during a predetermined third angle of rotation range of the weaving machine main shaft.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der Tangelprozess vor dem Abschneiden des eingetragenen Schussfadens von dem bereitgehaltenen Schussfaden beginnt.2. The method according to claim 1, characterized in that the tangling process begins before the cut weft thread is cut off from the ready-made weft thread.
3. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass der erste vorbestimmte Drehwinkelbereich innerhalb eines Webzyklus zwischen etwa 50° und 80° liegt.3. The method according to claim 1, characterized in that the first predetermined angle of rotation range within a weaving cycle is between approximately 50 ° and 80 °.
4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der zweite vorbestimmte Drehwinkelbereich innerhalb eines Webzyklus zwischen etwa 220° und 280° liegt.4. The method according to claim 1, characterized in that the second predetermined angle of rotation range is between about 220 ° and 280 ° within a weaving cycle.
5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass der dritte vorbestimmte Drehwinkelbereich innerhalb eines Webzyklus zwischen etwa 320° und 350° liegt.5. The method according to claim 1, characterized in that the third predetermined angle of rotation range within a weaving cycle is between approximately 320 ° and 350 °.
6. Verfahren nach Anspruch 1 , dadurch gekennzeichnet, dass der Tangelprozess im Mischrohr der Hauptblasduse ausgeführt wird.6. The method according to claim 1, characterized in that the tangling process is carried out in the mixing tube of the main blowing nozzle.
7. Düsenwebmaschine, insbesondere Luftdüsenwebmaschine mit mustergesteuertem Eintrag des Schussgarns zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 6, umfassend zumindest eine Hauptblasduse (1) mit Injektor (2) und Mischrohr (3), eine in Richtung des Schusseintrags (15) nach dem Injektor (2) im Mischrohr (3) angeordnete Klemmeinrichtung (6) zum Klemmen des Schussgarns (7), eine in Richtung des Schusseintrags (15) nach der Klemmeinrichtung (6) im Mischrohr (3) oder ausgangsseitig des Mischrohres (3) angeordnete Tängeleinrichtung (16) sowie Mittel zur Ausbildung eines Webfaches und zur Herbeiführung eines Fachschlusses.7. jet loom, in particular air jet loom with pattern-controlled entry of the weft yarn for carrying out the method according to one of claims 1 to 6, comprising at least one main blowing nozzle (1) with injector (2) and mixing tube (3), one in the direction of the weft insertion (15) the injector (2) in the mixing tube (3) arranged clamping device (6) for clamping the weft yarn (7), one in the direction of the weft insertion (15) after the clamping device (6) in the mixing tube (3) or on the output side of the mixing tube (3) Dancing device (16) and means for the formation of a shed and for bringing about a specialist conclusion.
8. Düsenwebmaschine nach Anspruch 7, dadurch gekennzeichnet, bei welcher die Klemmeinrichtung (6) ein Zentralverschluss in Form eines pneumatischen oder hydraulischen8. jet loom according to claim 7, characterized in which the clamping device (6) has a central lock in the form of a pneumatic or hydraulic
Muskels (8) ist.Muscle (8).
9. Düsenwebmaschine nach Anspruch 7, dadurch gekennzeichnet, bei welcher die Klemmeinrichtung (6) einen pneumatischen oder hydraulischen Muskel und zwei im Muskel integrierte, lamellenartige Teile aus federelastischem Material als Klemmmittel umfasst, welche Klemmmittel zusammen mit dem Muskel die Klemmeinrichtung bilden.9. jet loom according to claim 7, characterized in that the clamping device (6) comprises a pneumatic or hydraulic muscle and two integrated in the muscle, lamellar parts made of resilient material as a clamping means, which clamping means together with the muscle form the clamping device.
10. Düsenwebmaschine nach Anspruch 7, dadurch gekennzeichnet, bei welcher die Klemmeinrichtung (6) zwei, aus vorzugsweise federelastischem Material bestehende, lamellenartige Teile umfasst, wobei durch steuerbare Mittel die Lage wenigstens eines der beiden lamellenartigen Teile gegenüber dem anderen lamellenartigen Teil verstellbar ist.10. jet loom according to claim 7, characterized in which the clamping device (6) comprises two, preferably made of resilient material, slat-like parts, the position of at least one of the two slat-like parts relative to the other slat-like part being adjustable by controllable means.
11. Düsenwebmaschine nach Anspruch 10, dadurch gekennzeichnet, dass wenigstens eines der lamellenartigen Teile als Piezo-Element ausgebildet ist.11. jet loom according to claim 10, characterized in that at least one of the lamella-like parts is designed as a piezo element.
12. Düsenwebmaschine nach Anspruch 10, dadurch gekennzeichnet, dass wenigstens einem der lamellenartigen Teile ein bestrombares elektromagnetisches Mittel zugeordnet ist.12. jet loom according to claim 10, characterized in that at least one of the lamella-like parts is associated with an energizable electromagnetic means.
13. Düsenwebmaschine nach den Ansprüche 7 bis 10, dadurch gekennzeichnet, dass die Klemmeinrichtung (6) zwischen einem ersten und einem zweiten Mischrohrabschnitt (4,5) des13. jet loom according to claims 7 to 10, characterized in that the clamping device (6) between a first and a second mixing tube section (4,5) of
Mischrohres (3) eingeordnet ist.Mixing tube (3) is classified.
14. Düsenwebmaschine mit einer Klemmeinrichtung (6) und einer Tängeleinrichtung (16) nach Anspruch 7, dadurch gekennzeichnet, bei welcher Tängeleinrichtung das Mischrohr (3) wenigstens eine quer zur Eintragsrichtung (15) des Schussfadens (7) verlaufende und in den Innenraum des Mischrohres (3) mündende Tängelöffnung (18) besitzt, die über wenigstens ein steuerbares Magnetventil (19) an eine pneumatische Druckquelle (22) angeschlossen ist. 14. jet loom with a clamping device (6) and a beater device (16) according to claim 7, characterized in which beater device the mixing tube (3) at least one transverse to the direction of entry (15) of the weft thread (7) and in the interior of the mixing tube (3) has an opening (18) which is connected to a pneumatic pressure source (22) via at least one controllable solenoid valve (19).
EP03750291A 2002-12-04 2003-08-28 Method for improving the feeding behavior of a weft yarn, especially a weft yarn made of synthetic filaments, during the production of fabrics on jet looms, particularly pneumatic jet looms, and jet loom for carrying out said method Withdrawn EP1567698A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE2002156875 DE10256875B3 (en) 2002-12-04 2002-12-04 Method for improving the insertion behavior of a weft yarn, in particular synthetic filament weft yarn in both fabric production on jet weaving machines, in particular air jet weaving machines and jet weaving machine for carrying out the method
DE10256875 2002-12-04
PCT/DE2003/002861 WO2004050974A1 (en) 2002-12-04 2003-08-28 Method for improving the feeding behavior of a weft yarn, especially a weft yarn made of synthetic filaments, during the production of fabrics on jet looms, particularly pneumatic jet looms, and jet loom for carrying out said method

Publications (1)

Publication Number Publication Date
EP1567698A1 true EP1567698A1 (en) 2005-08-31

Family

ID=32403710

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03750291A Withdrawn EP1567698A1 (en) 2002-12-04 2003-08-28 Method for improving the feeding behavior of a weft yarn, especially a weft yarn made of synthetic filaments, during the production of fabrics on jet looms, particularly pneumatic jet looms, and jet loom for carrying out said method

Country Status (8)

Country Link
EP (1) EP1567698A1 (en)
JP (1) JP4156596B2 (en)
CN (1) CN1714181A (en)
AU (1) AU2003269686A1 (en)
BR (1) BR0316945A (en)
DE (2) DE10256875B3 (en)
RU (1) RU2295593C2 (en)
WO (1) WO2004050974A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007015691A1 (en) 2007-03-31 2008-10-09 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Filament filling thread inserting method for air jet weaving machine, involves submitting hybird thread to intermingling process in main jet for time lying between set of web cycles

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH649103A5 (en) * 1981-01-13 1985-04-30 Rueti Te Strake Bv PROTECTIVE WEAVING MACHINE.
CS247783B1 (en) * 1984-08-23 1987-01-15 Miroslav Hrus Nozzle for weft threads' carrying on jet looms
JPH03161557A (en) * 1989-11-15 1991-07-11 Murata Mach Ltd Loom
DE10209278A1 (en) * 2002-03-01 2003-09-25 Dornier Gmbh Lindauer Process for ironing weft yarns which have not or only partially been woven, in particular synthetic filament weft yarns, and weaving machine for carrying out the process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004050974A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007015691A1 (en) 2007-03-31 2008-10-09 Lindauer Dornier Gesellschaft Mit Beschränkter Haftung Filament filling thread inserting method for air jet weaving machine, involves submitting hybird thread to intermingling process in main jet for time lying between set of web cycles

Also Published As

Publication number Publication date
RU2295593C2 (en) 2007-03-20
DE10394127D2 (en) 2005-10-27
JP2006508273A (en) 2006-03-09
AU2003269686A1 (en) 2004-06-23
BR0316945A (en) 2005-10-18
WO2004050974A1 (en) 2004-06-17
JP4156596B2 (en) 2008-09-24
CN1714181A (en) 2005-12-28
RU2005120774A (en) 2006-01-20
DE10256875B3 (en) 2004-09-16

Similar Documents

Publication Publication Date Title
DE2939481A1 (en) METHOD AND DEVICE FOR SPLICING SPONNED THREADS
CH643213A5 (en) DEVICE FOR CONNECTING YARNERS.
CH638754A5 (en) METHOD FOR SPLITTING YARN, AND SPLICE CONNECTION MADE BY THE METHOD.
CH658683A5 (en) METHOD FOR ENTERING DIFFERENT WOOPS FROM DIFFERENT YARN TEXTURE IN THE WEAVING COMPARTMENT OF A JET WEAVING MACHINE AND JET WEAVING MACHINE FOR IMPLEMENTING THE METHOD.
EP0625600B1 (en) Apparatus for the treatment of at least one running multifilament yarn
CH619495A5 (en)
DE10330988B4 (en) Apparatus and method for the pneumatic connection of an elastomer-containing or up-turned threads or yarns
DE3130989C2 (en)
EP1340846B1 (en) Method for interlacing non- or partially-interlaced weft yarn, particularly synthetic filament weft yarn, and weaving loom for carrying out this method
DE3200638A1 (en) PROTECTIVE WEAVING MACHINE
CH638249A5 (en) METHOD AND DEVICE FOR DELIVERING A TRANSPORT FLUID TO A NUMBER OF AUXILIARY JETS OF A JET WAVING MACHINE.
DE19611320C2 (en) Method and device for pneumatically supporting the insertion and tensioning of a weft thread in weaving machines
DE10244694A1 (en) Weft clamping system, at the multi-color weft mixing tube for an air jet loom, has a flexible tube section which can be compressed and released by an external overpressure/underpressure
CH660723A5 (en) PNEUMATIC YARN SPLICE DEVICE FOR SPLIT WIDNED YARNS.
DE3032929A1 (en) PNEUMATIC WEAVING MACHINE
EP0527355A1 (en) Method and apparatus for pneumatically inserting sliver in a spinning machine
DE102005022955A1 (en) Method and device for holding a recorded after a starting operation of a loom, in particular air jet loom weft thread
EP1567698A1 (en) Method for improving the feeding behavior of a weft yarn, especially a weft yarn made of synthetic filaments, during the production of fabrics on jet looms, particularly pneumatic jet looms, and jet loom for carrying out said method
DE19653028C1 (en) Jet loom weft yarn preparation
DE3911018C2 (en)
EP1790764B1 (en) Method and apparatus for inserting weft threads
WO2004029346A1 (en) Method for holding a weft yarn, and a jet weaving machine, particularly serving to carry out this method
EP1509645A1 (en) Method for holding taut a weft thread and a loom for carrying out said method
DE4120568A1 (en) GRIPPER WEAVING MACHINE
DE3345627A1 (en) DEVICE FOR INSERTING A WIDE THREAD IN THE COMPARTMENT OF A WEAVING MACHINE

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050513

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20081212