EP1340846A2 - Verfahren zum Taengeln von nicht oder teilweise getaengelten Schussgarnen, insbesondere synthetischen Filament-Schussgarnen und Webmaschine zur Verfahrensdurchführung - Google Patents
Verfahren zum Taengeln von nicht oder teilweise getaengelten Schussgarnen, insbesondere synthetischen Filament-Schussgarnen und Webmaschine zur Verfahrensdurchführung Download PDFInfo
- Publication number
- EP1340846A2 EP1340846A2 EP03003373A EP03003373A EP1340846A2 EP 1340846 A2 EP1340846 A2 EP 1340846A2 EP 03003373 A EP03003373 A EP 03003373A EP 03003373 A EP03003373 A EP 03003373A EP 1340846 A2 EP1340846 A2 EP 1340846A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- weft
- weft yarn
- yarn
- nozzle tube
- bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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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
Definitions
- the invention relates to a method for ironing non or partially ironed Weft yarns, in particular synthetic filament weft yarns, on weaving machines with pneumatically operated weft insertion means according to the characteristics of the Preamble of claim 1.
- the invention further relates to a loom according to the features of the preamble of Claim 7.
- a loom with pneumatically acting weft insertion means is known from JP 3-161557.
- the weft insertion means consisting of the nozzle body and the nozzle tube is used to insert a weft yarn into the shed.
- a first and a second air stream supplied to the yarn guide channel of the nozzle body are applied tangentially to the weft yarn to improve the yarn closure.
- a weft insertion means is assigned to each weft yarn.
- the remaining yarns are held under tension by an air flow (so-called holding air) predetermined pressure levels, in cooperation with a so-called pre-winder with a thread stopper, in the relevant weft insertion means.
- holding air air flow
- the yarn connection previously imparted to the yarn is partially canceled again.
- the air flow causing the weft insertion during the insertion process cannot transmit the required thread tension to the weft, which has a negative effect on the weft insertion.
- DE 196 53 028 C1 discloses a method for processing weft yarns which are not or only partially intermingled, in particular synthetic filament weft yarns, on weaving machines with pneumatic weft insertion.
- the object of the known object is, in particular, to make filament weft yarns, which have only a slight inner yarn closure, processable on air jet weaving machines.
- the object is achieved in that the weft yarn is swirled after being pulled off the supply reel and before being temporarily stored on a prewinding device by means of a swirling device known per se.
- the known method and the known air jet weaving machine for carrying out the method do not take into account the fact that a weft yarn treated according to the method is exposed to an air flow acting in the direction of the weft insertion until it enters the shed within the nozzle tube of the pneumatic weft insertion means in order to sort the weft yarn into " Start position "for the weft entry.
- the inner thread closure of the filament weft is regularly loosened to a certain length. If such a length of the weft yarn is woven in, filament loops are formed in the fabric, on the so-called catch side of the yarn, which impair the quality of the fabric.
- the object of the invention is filament loops in the tissue due to a dissolved Avoid thread closure.
- An essential feature according to claim 1 is that in a known manner Length section of a pneumatically operated in a nozzle tube Weft thread insertion means held weft yarn at least for the between one first and a second weaving period with a pulling force on the Weft thread exercising and at a first predetermined pressure level is applied to the first air flow and that according to the invention the end region of the Longitudinal section within the aforementioned period additionally with one under one second predetermined pressure level P2 is applied to the second air flow, whose flow direction is different from the flow direction of the first air stream.
- the duration of the additional loading is greater than the duration of a weaving cycle. Then that is the case when e.g. more than two different weft threads interwoven because then more than two weft insertion means Weft insertion system can be used.
- the first air flow causing the pulling force on the weft yarn is based e.g. in Dependence on the yarn quality at a relatively low pressure level, which at may be less than 1 bar on the weft yarn while serving the thongs second air flow directed in the nozzle tube is based on a relatively high pressure level, which is preferably between 4 bar and 6 bar at over 1 bar.
- the additional loading of the weft yarn held in the nozzle tube with the second air flow takes place according to the invention in the nozzle tube of the weft insertion means, and before its free end.
- the weft yarn is danced in such a way that a Sufficiently good thread closure occurs.
- a sufficiently good thread closure is achieved when the additional Pulsed within the aforementioned period of time.
- the Taengel process takes place in the region of the free end of the Length section, so that the unraveled yarn end is part of the yarn waste.
- the yarn can e.g. ribbon-shaped Character and have several ribbons.
- a weaving machine which has at least one Pneumatically operated consisting of nozzle and nozzle tube Has weft insertion means.
- the interior of the nozzle tube is in the area of the free one End over at least one opening in the tube wall and one Pressure line connected to a controllable valve.
- the pressure line can be controlled with a separate Valve be operatively connected.
- each weft yarn 1; 2 is fed to a weft insertion means, consisting of a main nozzle 3; 4 with nozzle tube 3a; 4a, from a pre-winding device, not shown.
- a first main nozzle 3 and a second main nozzle 4 are connected to a pressure line 10 connected to a valve 8.
- the relevant length section of the weft yarn 1 is held in the nozzle tube 3a, in which a tensile force with a predetermined time period or during a predetermined rotation angle range of the main shaft of the main shaft of the weft yarn 1 is by means of an air flow at a pressure level P1 Loom is exercised.
- the other weft yarn 2 is subject to the weft insertion.
- the end region of the length section is additionally via a in the free end region of the nozzle tube 3a existing opening 3b with an under a pressure level P2 airflow is applied to cause a thread closure.
- the nozzle pipes 3a; 4a are accommodated in a connecting piece 5 equipped with two parallel pressure channels 5a; 5b, in such a way that the second air flow at pressure level P2 passes through pressure channel 5a or 5b and the opening 3b or 4b the yarn 1 or 2 is acted upon and alternately a yarn connection in the nozzle tube 3a or 4a is realized.
- a pressure line 7 is connected via suitable means 6, which is connected via a valve 9 to a pressure source (not shown) which generates the pressure level P2 of the second air stream.
Abstract
Description
Vor dem Austritt des Schussgarnes aus dem Düsenrohr wird zur Verbesserung des Garnschlusses mit einem ersten und einem zweiten zum Garnführungskanal des Düsenkörpers zugeführten Luftstrom das Schussgarn tangential beaufschlagt.
Beim Verweben von Filament-Schussgarnen unterschiedlicher Qualität ist jedem Schussgarn ein Schussfadeneintragsmittel zugeordnet. Außer dem betreffenden Garn, das in das Webfach eingetragen wird, werden die übrigen Garne von einer Luftströmung (sogenannte Halteluft) vorbestimmten Druckniveaus, im Zusammenwirken mit einem sogenannten Vorspuler mit Fadenstopper, in dem betreffenden Schussfadeneintragsmittel unter Zugspannung gehalten.
Mit dem die Zugkraft auf das Garn ausübenden Luftstrom (Halteluft) wird aber in nachteiliger Weise der zuvor dem Garn verliehene Garnschluss teilweise wieder aufgehoben. Damit kann die den Schussfadeneintrag bewirkende Luftströmung beim Eintragsprozess nicht die erforderliche Fadenzugkraft auf den Schussfaden übertragen, was sich negativ auf den Schusseintrag auswirkt.
Dem bekannten Gegenstand liegt die Aufgabe zugrunde, insbesondere Filament-Schussgarne, die nur einen geringen inneren Garnschluss besitzen, auf Luftdüsenwebmaschinen verarbeitbar zu machen.
Das vorbekannte Verfahren und die vorbekannte Luftdüsenwebmaschine zur Durchführung des Verfahrens berücksichtigt nicht, dass ein nach dem Verfahren behandeltes Schussgarn bis zu dessen Eintrag in das Webfach innerhalb des Düsenrohres des pneumatischen Schusseintragmittels einer in Richtung des Schusseintrags wirkenden Luftströmung ausgesetzt ist, um das Schussgarn gewissermaßen in "Startposition" für den Schusseintrag zu halten. Dabei wird regelmäßig der innere Garnschluss des Filament-Schussgarns auf einer bestimmten Länge aufgelöst. Wird eine derartige Länge des Schussgarnes eingewoben, entstehen im Gewebe, auf der sogenannten Fangseite des Garnes, Filamentschlingen, die die Qualität des Gewebes beeinträchtigen.
- Figur 1
- den Hauptdüsenblock einer Luftdüsenwebmaschine in der Draufsicht und
- Figur 2
- eine erste und eine zweite Druckluftzuführung im Bereich des freien Endes der Düsenrohre gemäß der Linie A-A in Figur 1.
Jedes Schussgarn 1;2 wird von einem nicht dargestellten Vorspulgerät einem Schusseintragsmittel, bestehend aus einer Hauptdüse 3;4 mit Düsenrohr 3a;4a zugeführt. Eine erste Hauptdüse 3 und eine zweite Hauptdüse 4 ist mit einer an einem Ventil 8 angeschlossenen Druckleitung 10 verbunden.
Wird in einem sogenannten Mischwechsel gewoben, so wird z.B. der betreffende Längenabschnitt des Schussgarnes 1 in dem Düsenrohr 3a gehalten, in welchem mittels eines unter einem Druckniveau P1 stehenden Luftstromes auf das Schussgarn 1 eine Zugkraft mit einer vorbestimmten Zeitdauer oder während eines vorbestimmten Drehwinkelbereiches der Hauptwelle der Webmaschine ausgeübt wird. Das andere Schussgarn 2 unterliegt dem Schusseintrag.
An jedem der Druckkanäle 5a,5b ist über geeignete Mittel 6 eine Druckleitung 7 angeschlossen, die über ein Ventil 9 mit einer nicht dargestellten, das Druckniveau P2 des zweiten Luftstromes erzeugenden Druckquelle verbunden ist.
- 1
- Schussgarn
- 2
- Schussgarn
- 3
- Hauptdüse
- 3a
- Düsenrohr
- 3b
- Öffnung
- 4
- Hauptdüse
- 4a
- Düsenrohr
- 4b
- Öffnung
- 5
- Verbindungsstück
- 5a
- Druckkanal
- 5b
- Druckkanal
- 6
- Mittel
- 7
- Druckleitung
- 8
- Ventil
- 9
- Ventil
- 10
- Druckleitung
Claims (6)
- Verfahren zum Taengeln von nicht oder teilweise getaengelten Schussgarnen, insbesondere synthetischen Filament-Schussgarnen auf Webmaschinen, wonach ein Längenabschnitt eines von einem Vorspulgerät mit Fadenstopper gelieferten Schussgarns in einem Düsenrohr einer pneumatisch betriebenen Hauptdüse wenigstens für die zwischen einem ersten und einem zweiten Webzyklus liegende Zeitdauer vom Fadenstopper gehalten wird und mit einem eine Zugkraft auf das Schussgarn ausübenden und unter einem Druckniveau von P1 < 1 bar stehenden ersten Luftstrom (Halteluft) beaufschlagt wird, dadurch gekennzeichnet, dass der Endbereichs des Längenabschnitts innerhalb der Zeitdauer zusätzlich mit einem den Taengelprozess dienenden und unter einem Druckniveau P2 > 1 bar, vorzugsweise 4 bar bis 6 bar, stehenden zweiten Luftstrom beaufschlagt wird, dessen Strömungsrichtung verschieden zur Strömungsrichtung des ersten Luftstromes ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die zusätzliche Beaufschlagung im Düsenrohr beabstandet von dessen freiem Ende erfolgt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die zusätzliche Beaufschlagung innerhalb der Zeitdauer gepulst erfolgt.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die zusätzliche Beaufschlagung auf einem Längenabschnitt des Schussgarns erfolgt, der Bestandteil eines Garnabfalles ist.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Schussgarn von beliebigem Querschnitt ist.
- Webmaschine zur Durchführung des Verfahrens nach Anspruch 1, umfassend, wenigstens ein ein Düsenrohr aufweisendes pneumatisch betriebenes Schussfadeneintragsmittel, wenigstens ein mit dem Schussfadeneintragsmittel über eine Druckleitung wirkverbundenes, steuerbares Ventil zum Beaufschlagen des im Düsenrohr gehaltenen Längenabschnitts eines von einem Vorspulgerät gelieferten Schussgarnes mit einem ersten Luftstrom vorbestimmten Druckniveaus P1, wenigstens eine pneumatische Druckquelle und eine speicherprogrammierbare Webmaschinensteuerung zum Ansteuern des wenigstens einen Ventils, dadurch gekennzeichnet, dass der Innenraum des Düsenrohres (3a;4a) im Bereich des freien Endes über wenigstens eine Druckleitung (5a;5b) und über eine in der Wandung des Düsenrohres (3a;4a) vorhandene Öffnung (3b;4b) mit wenigstens einem steuerbaren Ventil (9) wirkverbunden ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10209278A DE10209278A1 (de) | 2002-03-01 | 2002-03-01 | Verfahren zum Taengeln von nicht oder teilweise getaengelten Schussgarnen, insbesondere synthetischen Filment-Schussgarnen und Webmaschine zur Verfahrensdurchführung |
DE10209278 | 2002-03-01 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1340846A2 true EP1340846A2 (de) | 2003-09-03 |
EP1340846A3 EP1340846A3 (de) | 2003-11-05 |
EP1340846B1 EP1340846B1 (de) | 2004-12-22 |
Family
ID=27675170
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03003373A Expired - Lifetime EP1340846B1 (de) | 2002-03-01 | 2003-02-14 | Verfahren zum Taengeln von nicht oder teilweise getaengelten Schussgarnen, insbesondere synthetischen Filament-Schussgarnen und Webmaschine zur Verfahrensdurchführung |
Country Status (7)
Country | Link |
---|---|
US (1) | US6959738B2 (de) |
EP (1) | EP1340846B1 (de) |
JP (1) | JP2003278052A (de) |
AT (1) | ATE285491T1 (de) |
DE (2) | DE10209278A1 (de) |
ES (1) | ES2235118T3 (de) |
PT (1) | PT1340846E (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007015691A1 (de) | 2007-03-31 | 2008-10-09 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Verfahren zum Eintragen eines Filamentschussfadens in einer Luftdüsenwebmaschine |
CN102094282A (zh) * | 2009-12-15 | 2011-06-15 | 津田驹工业株式会社 | 喷气式织机的引纬装置 |
CN102776671A (zh) * | 2012-07-23 | 2012-11-14 | 苏州迪盛织造整理有限公司 | 短纤维投纬吸绒装置 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10256875B3 (de) * | 2002-12-04 | 2004-09-16 | Lindauer Dornier Gesellschaft Mbh | Verfahren zum Verbessern des Eintragverhaltens eines Schussgarns, insbesondere synthetisches Filament-Schussgarn beider Gewebeherstellung auf Düsenwebmaschinen, insbesondere Luftdüsenwebmaschinen und Düsenwebmaschine zur Durchführung des Verfahrens |
JP2007239163A (ja) * | 2006-03-13 | 2007-09-20 | Tsudakoma Corp | エア噴射織機 |
JP2007239164A (ja) * | 2006-03-13 | 2007-09-20 | Tsudakoma Corp | エア噴射織機 |
CN103757806B (zh) * | 2014-01-28 | 2015-02-11 | 无锡精业丝普兰科技股份有限公司 | 双向引纬喷气织机用主喷嘴 |
CN103757803B (zh) * | 2014-01-28 | 2016-03-23 | 无锡精业丝普兰科技股份有限公司 | 主喷管座及主喷嘴结构 |
CN103757804B (zh) * | 2014-01-28 | 2015-03-25 | 无锡精业丝普兰科技股份有限公司 | 双向引纬喷气织机的双向引纬机构及双向引纬方法 |
JP2023110373A (ja) * | 2022-01-28 | 2023-08-09 | 津田駒工業株式会社 | 空気噴射式織機における緯入れ方法及び緯入れ装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3739351C1 (en) * | 1987-11-20 | 1989-02-02 | Dornier Gmbh Lindauer | Air nozzle for weft-thread insertion in pneumatic weaving machines |
JPH03161557A (ja) * | 1989-11-15 | 1991-07-11 | Murata Mach Ltd | 織機 |
DE19653028C1 (de) * | 1996-12-19 | 1998-01-29 | Dornier Gmbh Lindauer | Verfahren zum Verarbeiten nicht oder teilverwirbelter Schußgarne, insbesondere synthetischer Filament-Schußgarne |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4256148A (en) * | 1979-04-23 | 1981-03-17 | Scharling Ii Henry E | Weaving apparatus and method |
GB2259719A (en) * | 1991-07-08 | 1993-03-24 | Murata Machinery Ltd | Method of operating weaving apparatus |
US6240977B1 (en) * | 2000-09-06 | 2001-06-05 | Milliken & Company | Method and apparatus for imparting and alternating twist and weaving a multi-ply yarn in continuous motion |
-
2002
- 2002-03-01 DE DE10209278A patent/DE10209278A1/de not_active Ceased
-
2003
- 2003-02-14 EP EP03003373A patent/EP1340846B1/de not_active Expired - Lifetime
- 2003-02-14 ES ES03003373T patent/ES2235118T3/es not_active Expired - Lifetime
- 2003-02-14 PT PT03003373T patent/PT1340846E/pt unknown
- 2003-02-14 AT AT03003373T patent/ATE285491T1/de not_active IP Right Cessation
- 2003-02-14 DE DE50300209T patent/DE50300209D1/de not_active Expired - Fee Related
- 2003-02-27 JP JP2003051507A patent/JP2003278052A/ja active Pending
- 2003-02-28 US US10/377,269 patent/US6959738B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3739351C1 (en) * | 1987-11-20 | 1989-02-02 | Dornier Gmbh Lindauer | Air nozzle for weft-thread insertion in pneumatic weaving machines |
JPH03161557A (ja) * | 1989-11-15 | 1991-07-11 | Murata Mach Ltd | 織機 |
DE19653028C1 (de) * | 1996-12-19 | 1998-01-29 | Dornier Gmbh Lindauer | Verfahren zum Verarbeiten nicht oder teilverwirbelter Schußgarne, insbesondere synthetischer Filament-Schußgarne |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 015, no. 392 (C-0873), 4. Oktober 1991 (1991-10-04) & JP 03 161557 A (MURATA MACH LTD), 11. Juli 1991 (1991-07-11) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007015691A1 (de) | 2007-03-31 | 2008-10-09 | Lindauer Dornier Gesellschaft Mit Beschränkter Haftung | Verfahren zum Eintragen eines Filamentschussfadens in einer Luftdüsenwebmaschine |
CN102094282A (zh) * | 2009-12-15 | 2011-06-15 | 津田驹工业株式会社 | 喷气式织机的引纬装置 |
CN102776671A (zh) * | 2012-07-23 | 2012-11-14 | 苏州迪盛织造整理有限公司 | 短纤维投纬吸绒装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2003278052A (ja) | 2003-10-02 |
ATE285491T1 (de) | 2005-01-15 |
US6959738B2 (en) | 2005-11-01 |
EP1340846B1 (de) | 2004-12-22 |
DE10209278A1 (de) | 2003-09-25 |
ES2235118T3 (es) | 2005-07-01 |
PT1340846E (pt) | 2005-05-31 |
EP1340846A3 (de) | 2003-11-05 |
DE50300209D1 (de) | 2005-01-27 |
US20030164197A1 (en) | 2003-09-04 |
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