CN1106086A - 喷气织机用改进型主喷嘴 - Google Patents

喷气织机用改进型主喷嘴 Download PDF

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Publication number
CN1106086A
CN1106086A CN94117609.6A CN94117609A CN1106086A CN 1106086 A CN1106086 A CN 1106086A CN 94117609 A CN94117609 A CN 94117609A CN 1106086 A CN1106086 A CN 1106086A
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China
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accelerating cavity
oblique angle
jet loom
taper
distribution rings
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CN1036286C (zh
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吉昂路易吉·索拉
卢契奥·萨尔德拉
罗伯特·卡皮达尼奥
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Nuovo Pignone SpA
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    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D47/00—Looms in which bulk supply of weft does not pass through shed, e.g. shuttleless looms, gripper shuttle looms, dummy shuttle looms
    • D03D47/28—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

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

一种喷气织机用主喷嘴，其环形加速腔外壁锥形 的斜角为12°—16°，而内壁锥形的斜角为4°— 8°。并示出一个较优的实施例。

Description

本发明涉及一种喷气织机用主喷嘴，该喷嘴由于其环形加速腔的内、外壁具有适当的锥度能使用来将纬纱引入到梭道内的喷气处于最佳状态。
众所周知，在喷气织布中纬纱之所以能被引入到梭道中是由于在所要引入的纬纱与喷气流之间存在着流体动力学上的连系，即由主喷嘴所喷出的喷气流将挟带动能传送到纬纱上。
在现有技术中已知有各种型式的主喷嘴，所有这些喷嘴基本上都是由一设有压缩空气引入口和混合腔的外壳及一插入其内的设有分布环的混合管构成的，在分布环上沿圆周分布着多个吹入槽，外壳及混合管在分布环的上游形成一个环形分布腔，而在分布环的下游则形成一个环形加速腔，该加速腔具有锥形壁它伸入到所说的混合腔内。
显然在这样一个结构中所说加速腔外壁的锥形的张开角不能太大，因为从所说分布环的环形吹入槽吹入的环形喷气流撞击在所说外壁上将会损失掉过多的能量。但这个张开角也不能太小因为这样喷嘴在轴向上将会太长，而这是在喷气织机上不可忽视的缺点。
实验证明当加速腔外壁锥形的斜角在12°和16°之间时喷气流的能量损失可以降至最小。
实验并证明当主喷嘴的加速腔外壁锥形具有所说斜角而所说加速腔内壁锥形的斜角在4°和8°之间时从喷气流将能量传送到所要引入的纬纱上的效率可以达到最大值。
因此，由一设有压缩空气引入口和混合腔的外壳及一插入其内的设有分布环的混合管构成的喷气织机用主喷嘴，在其分布环上沿圆周分布着多个吹入槽，所说的外壳及混合管在分布环的上游形成一个环形分布腔，而在分布环的下游形成一个环形加速腔，该加速腔具有引伸到所说混合腔内的锥形壁，按照本发明，上述主喷嘴的特征为，所说环形加速腔外壁锥形的斜角在12°和16°之间，而其内壁锥形的斜角在4°和8°之间。
按照本发明的一个较优的实施例，所说的环形加速腔外壁锥形的斜角为15°，而其内壁锥形的斜角为7°。
下面本发明将结合附图对一个较优实施例进行详细说明，从该实施例稍作技术上和结构上的改动可以引伸出无限的实施例但仍不离开本发明的范围。
附图所示为按照本发明的主喷嘴的纵向剖面图。
图中标号1为主喷嘴的外壳，其上设有压缩空气引入口2并形成混合腔3，在该腔内纬纱4与喷气流接触并被它挟带。用螺纹拧入外壳1内的混合管5具有一个喇叭口6以便纬纱4的引入，一个中心通道7以便所说纬纱通过，还有一个分布环8，其上沿圆周分布着多个吹入槽9以便生成一个均匀分布在纬纱4周围的环形喷气流。所说混合管5与所说外壳1在所说分布环8的上游和下游分别形成一个与引入口2连接的环形分布腔10及一个环形加速腔11，该加速腔11具有加速所说环形喷气流用的锥形壁并与所说混合腔3连通。所说环形加速腔11外壁13锥形的斜角12在12°和16°之间，最好为15°，而环形加速腔11内壁15的斜角14在4°和8°之间，最好为7°。

Claims (2)

1、一种喷气织机用主喷嘴，由一设有压缩空气引入口和混合腔的外壳及一插在其内的设有分布环的混合管构成，在分布环上沿圆周分布着多个吹入槽，所说外壳及所说混合管在所说分布环的上游形成一个环形分布腔，而在所说分布环的下游则形成一个环形加速腔，该加速腔具有引伸到所说混合腔的锥形壁，上述喷嘴的特征在于，所说加速腔外壁锥形的斜角在12°和16°之间，而内壁锥形的斜角在4°和8°之间。
2、按照权利要求1的喷气织机用主喷嘴，其特征在于，所说环形加速腔外壁锥形的斜角为15°而内壁锥形的斜角为7°。
CN94117609A 1993-10-27 1994-10-27 喷气织机用改进型主喷嘴 Expired - Fee Related CN1036286C (zh)

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IT93MI002275A IT1266636B1 (it) 1993-10-27 1993-10-27 Ugello principale perfezionato per telaio tessile ad aria
IT002275A/93 1993-10-27

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CN1106086A true CN1106086A (zh) 1995-08-02
CN1036286C CN1036286C (zh) 1997-10-29

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US (1) US5526850A (zh)
JP (1) JPH07189079A (zh)
CN (1) CN1036286C (zh)
BE (1) BE1008618A3 (zh)
CZ (1) CZ284397B6 (zh)
DE (1) DE4438302A1 (zh)
IT (1) IT1266636B1 (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101135080B (zh) * 2006-08-31 2011-01-12 津田驹工业株式会社 流体喷射式织布机的投纬喷嘴
CN103510249A (zh) * 2013-09-24 2014-01-15 吴江唯奇布业有限公司 一种带整流气室的喷气织机用喷嘴
CN103526433A (zh) * 2013-10-25 2014-01-22 吴江唯奇布业有限公司 一种喷气织机喷嘴
CN105177825A (zh) * 2015-08-14 2015-12-23 吴江福爱梁纺织有限公司 一种纺织主喷嘴
CN108180091A (zh) * 2017-12-26 2018-06-19 潍柴动力股份有限公司 Egr混合调节装置及内燃机

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DE19511439C1 (de) * 1995-03-29 1996-03-14 Dornier Gmbh Lindauer Verfahren zur Leistungssteigerung beim Schußfadeneintrag in ein Webfach einer Luftdüsenwebmaschine und Eintragsdüse zur Durchführung des Verfahrens
NL1004117C2 (nl) * 1996-09-26 1998-03-27 Te Strake Bv Meervoudige injecteurinrichting.
GB9917069D0 (en) * 1999-07-22 1999-09-22 Fibreguide Ltd Yarn treatment jet
DE10224078A1 (de) * 2002-05-31 2003-12-18 Dornier Gmbh Lindauer Verfahren zum Gestreckthalten eines Schussfadens und Webmaschine zur Verfahrensdurchführung
US6826814B1 (en) * 2003-09-29 2004-12-07 Precision Products, Inc. Yarn texturizer
DE102004036996B3 (de) * 2004-07-30 2005-12-01 Lindauer Dornier Gmbh Duesenwebmaschine, insbesondere Luftdüsenwebmaschine, mit einer Klemmeinrichtung im Mischrohr
DE102006025968B3 (de) * 2006-06-02 2007-11-29 Lindauer Dornier Gmbh Verfahren zum Klemmen eines Schussfadens in einer Düsenwebmaschine, insbesondere Luftdüsenwebmaschine, Klemmeinrichtung und Düsenwebmaschine
US7748414B2 (en) * 2006-12-12 2010-07-06 Itema (Switzerland) Ltd Method and apparatus for the insertion of weft threads
US8925324B2 (en) 2010-10-05 2015-01-06 General Electric Company Turbomachine including a mixing tube element having a vortex generator
DE102014011542A1 (de) * 2014-08-08 2016-02-11 Hauni Maschinenbau Ag Transportdüse für eine Vorrichtung zur Herstellung von Filterstäben für die Tabakverarbeitende Industrie und Vorrichtung zur Herstellung von Filterstäben für die Tabakverarbeitende Industrie
WO2021216105A1 (en) 2020-04-20 2021-10-28 Raines David Drew Web air threading system and methods of use

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US2982082A (en) * 1954-10-20 1961-05-02 British Celanese Production of voluminous yarn
US2994938A (en) * 1959-06-30 1961-08-08 Du Pont Yarn-treating apparatus
CH545364A (de) * 1972-05-29 1973-12-15 Rueti Ag Vormals C Honegger Ma Düse zum Erzeugen eines Strahles eines Fluidums
CS219392B1 (en) * 1980-10-03 1983-03-25 Jindrich Henzl Nozzle mainly for pneumatic weaving machine
US4550752A (en) * 1980-11-17 1985-11-05 Ruti-Te Strake B.V. Method for conveying a flexible thread by means of pressurized gas
JPS584851A (ja) * 1981-07-02 1983-01-12 日産自動車株式会社 空気噴射式織機の緯入れ用ノズル
CS243719B1 (en) * 1983-03-29 1986-06-12 Vladimir Kuda Weft insertion mechanism
BE904260A (nl) * 1986-02-21 1986-08-21 Picanol Nv Inrichting voor de insertie van inslagdraden in de gaap bij luchtweefmachines en regelbare blazers hierbij toegepast.
DE8903512U1 (de) * 1989-03-21 1990-04-19 Lindauer Dornier Gmbh, 8990 Lindau Hauptdüse für Luftwebmaschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101135080B (zh) * 2006-08-31 2011-01-12 津田驹工业株式会社 流体喷射式织布机的投纬喷嘴
CN103510249A (zh) * 2013-09-24 2014-01-15 吴江唯奇布业有限公司 一种带整流气室的喷气织机用喷嘴
CN103526433A (zh) * 2013-10-25 2014-01-22 吴江唯奇布业有限公司 一种喷气织机喷嘴
CN105177825A (zh) * 2015-08-14 2015-12-23 吴江福爱梁纺织有限公司 一种纺织主喷嘴
CN108180091A (zh) * 2017-12-26 2018-06-19 潍柴动力股份有限公司 Egr混合调节装置及内燃机

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Publication number Publication date
US5526850A (en) 1996-06-18
ITMI932275A1 (it) 1995-04-27
ITMI932275A0 (it) 1993-10-27
CZ284397B6 (cs) 1998-11-11
CN1036286C (zh) 1997-10-29
JPH07189079A (ja) 1995-07-25
CZ260194A3 (en) 1995-05-17
DE4438302A1 (de) 1995-05-04
IT1266636B1 (it) 1997-01-09
BE1008618A3 (fr) 1996-06-04

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