EP1428918B1 - Hilfsdüse für eine Webmachine - Google Patents

Hilfsdüse für eine Webmachine Download PDF

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Publication number
EP1428918B1
EP1428918B1 EP04004657A EP04004657A EP1428918B1 EP 1428918 B1 EP1428918 B1 EP 1428918B1 EP 04004657 A EP04004657 A EP 04004657A EP 04004657 A EP04004657 A EP 04004657A EP 1428918 B1 EP1428918 B1 EP 1428918B1
Authority
EP
European Patent Office
Prior art keywords
bulge
upper edge
point
hollow needle
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.)
Expired - Lifetime
Application number
EP04004657A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1428918A2 (de
EP1428918A3 (de
Inventor
Jozef Peeters
Joseph Verhulst
Jean Marie Bamelis
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.)
Picanol NV
Original Assignee
Picanol NV
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 Picanol NV filed Critical Picanol NV
Publication of EP1428918A2 publication Critical patent/EP1428918A2/de
Publication of EP1428918A3 publication Critical patent/EP1428918A3/de
Application granted granted Critical
Publication of EP1428918B1 publication Critical patent/EP1428918B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • D03D47/302—Auxiliary nozzles

Definitions

  • the invention relates to an auxiliary nozzle for a loom according to the preamble of claim 1.
  • auxiliary nozzles are from the US 5 020 574 known. They support the introduction of a weft thread in the shed of a loom. For this purpose, a plurality of such auxiliary nozzles are arranged distributed over the width of the batten, which each provide a fluid flow, which supports the transport of a blown into a weft insertion channel of a reed weft thread.
  • the auxiliary nozzles are arranged so that the mounted in a wall below the tip blowing opening or Blasöffnuhgen are aligned in a certain position to the upper wall and the rear wall of the weft insertion channel.
  • the fluid stream flowing out of the blowing opening or openings is directed essentially in the longitudinal direction of the weft insertion channel and has a component obliquely upwards.
  • the auxiliary nozzles move with each weft insertion through the lower warp thread level into the shed. It has been found that warp yarns, consisting of several thin individual filaments and only slightly twisted, fray or fray at the points where the auxiliary nozzles move in and out of the shed through the lower warp thread plane. This fraying or fraying occurs especially in filament yarns, in which thin plastic filaments are substantially parallel to each other and are welded together at regular intervals. In this case, a fabric is woven which, at the points where the auxiliary nozzles are moved through the lower warp thread plane, has a different appearance than the rest of the fabric. In the area of the auxiliary nozzles, these warp threads receive a larger volume than the other Velcro threads, since the thin filaments are no longer arranged exactly next to each other.
  • An auxiliary nozzle with bulge according to the preamble of claim 1 is made CH-A-650 035 known.
  • the invention has the object of providing an auxiliary nozzle of the type mentioned in such a way that the risk of damaging warp threads is reduced.
  • the loom shown in Fig. 1 has a reed 3, which consists of a plurality of fins, each having a cutout to form a U-shaped weft insertion channel 4.
  • weft threads 1, 2 are entered into a shed, which is formed of warp threads in an upper and a lower warp thread plane.
  • the weft threads 1 or 2 are each blown by a Hauptblasdüse 5, 6.
  • the further transport of the weft threads 1 or 2 is supported by air jets 7, the auxiliary nozzles 8 blow into the weft insertion channel 4.
  • the air jets 7 are directed substantially in the longitudinal direction of the weft insertion channel 4 and have a slightly obliquely upwardly directed component, which is directed to the upper wall and the rear wall of the weft insertion channel 4 on the weft threads 1, 2.
  • the reed 3, the Hauptblasdüsen 5, 6 and the holder 9 of the auxiliary nozzles 8 are attached to a shop profile 10 of a sley, as for example from US 50 20 574 is known.
  • the shop profile 10 is fastened, for example, via stilts to a shaft, not shown, of the sley, which is driven to reciprocate.
  • a shed is formed from a warp upper plane and a warp lower plane 18, which converge in a stop line at which the weft threads are struck by the reed 3, so that a fabric is formed.
  • the striking of a weft thread is carried by the rear wall of the U-shaped weft insertion channel 4, which belongs to the central part of the reed.
  • the upper part of the lamellae of the reed 3 forms an upper wall of the guide channel 4.
  • the lower wall of the guide channel 4 is formed by the lower part of the lamellae of the reed 3.
  • the auxiliary nozzles 8 are designed as a hollow needle 11, which is provided near its tip in a side wall with an outflow opening 25.
  • the hollow needle 11 of the auxiliary nozzle 8 is provided in the region of the tip with a lateral bulge 13, which faces the reed 3, when the auxiliary nozzle 8 is attached to the batten.
  • the auxiliary nozzle 8 is provided with an upper edge 28 which extends into the region of the bulge 13.
  • the substantially rectilinear upper edge 28 connects via curves with a relatively large radius of the hollow needle 11 and the bulge 13 at.
  • the auxiliary nozzles 8 are moved out of the shed by means of the movement of the sley for each weft insertion between the warp threads of the warp thread plane 18 into the shed and after striking the weft thread through the warp thread plane 18 therethrough.
  • the angle of the upper edge 28 to the longitudinal axis 32 and / or the shape of the hollow needle 11 formed as auxiliary nozzles 8 is suitably adapted to the material of the processed warp threads so that the warp threads are not damaged in the penetration into the shed, not be frayed or chipped , Preferably, this angle is in the order of 70 ° to 110 °.
  • the cross-section of the cavity of the hollow needle 11 of the auxiliary nozzle 8 is less in the region of the beginning of the bulge 13 than in the preceding section.
  • the wall thickness of the auxiliary nozzle 8 is greater in the region of the outflow opening 25 than in the remaining region of the tip 12. Due to the greater wall thickness, it is possible to better guide the exiting fluid jet in the individual openings of the outflow opening, since the length of the openings is greater. This can also limit the risk that an air jet 7 (FIG. 1) will damage the warp threads.
  • the individual openings of the discharge opening 25 are arranged closer to the upper edge 28 of the auxiliary nozzle 8 and distributed not on an approximately circular surface, but on three superimposed rows.
  • the individual openings also extend into the region of the bulge 13, so that the same number of individual openings (in the exemplary embodiment 19 individual openings) can be accommodated closer to the upper edge 28, ie the same overall cross section for the outflow opening 25 is achieved. Since the outflow opening 25 in this embodiment has previously passed completely through the lower warp thread plane 18 is, can be started earlier with the outflow. Since, in the opposite movement, the outflow opening 25 is moved out of the shed correspondingly later through the lower warp thread plane 18, the outflow from the auxiliary nozzle 8 can be extended.
  • the auxiliary nozzle 8 according to the invention can be used not only for blowing out an air jet 7, but rather also for another fluid, with which a weft thread is transported.
  • the fluid may be, for example, a liquid such as water, so that a liquid jet on the Weft threads are directed.
  • a gas as a fluid or a gas in which a liquid is sprayed or atomized, for example an air jet with sprayed water.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP04004657A 1999-04-14 2000-04-14 Hilfsdüse für eine Webmachine Expired - Lifetime EP1428918B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE9900257A BE1012608A3 (nl) 1999-04-14 1999-04-14 Spuitmondstuk voor een weefmachine.
BE9900257 1999-04-14
EP00926927A EP1169503B1 (de) 1999-04-14 2000-04-14 Hilfsdüse für eine webmaschine

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00926927A Division EP1169503B1 (de) 1999-04-14 2000-04-14 Hilfsdüse für eine webmaschine

Publications (3)

Publication Number Publication Date
EP1428918A2 EP1428918A2 (de) 2004-06-16
EP1428918A3 EP1428918A3 (de) 2004-09-01
EP1428918B1 true EP1428918B1 (de) 2007-08-08

Family

ID=3891863

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04004657A Expired - Lifetime EP1428918B1 (de) 1999-04-14 2000-04-14 Hilfsdüse für eine Webmachine
EP00926927A Expired - Lifetime EP1169503B1 (de) 1999-04-14 2000-04-14 Hilfsdüse für eine webmaschine

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00926927A Expired - Lifetime EP1169503B1 (de) 1999-04-14 2000-04-14 Hilfsdüse für eine webmaschine

Country Status (9)

Country Link
US (1) US6536482B1 (zh)
EP (2) EP1428918B1 (zh)
KR (1) KR100634900B1 (zh)
CN (1) CN1116459C (zh)
AT (2) ATE369451T1 (zh)
BE (1) BE1012608A3 (zh)
DE (2) DE50014554D1 (zh)
ES (1) ES2213014T3 (zh)
WO (1) WO2000063473A1 (zh)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50300789D1 (de) * 2002-04-26 2005-08-25 Sultex Ag Rueti Fang- und Haltevorrichtung für das fangseitige Schussfadenende in einer Webmaschine
JP2004107819A (ja) * 2002-09-18 2004-04-08 Tsudakoma Corp 空気噴射式織機の緯糸飛走制御装置
BE1015155A3 (nl) * 2002-10-23 2004-10-05 Picanol Nv Spuitmondstuk voor het ondersteunen van een inslagdraad in een weefmachine.
BE1015261A3 (nl) 2002-12-19 2004-12-07 Picanol Nv Spuitmondstuk voor het ondersteunen van een inslagdraad bij een weefmachine.
DE502004003591D1 (de) * 2003-09-02 2007-06-06 Sultex Ag Webmaschine mit einer Einlegevorrichtung für schussfäden
CN102839485A (zh) * 2012-09-13 2012-12-26 吴江市隆泰喷织厂 一种辅助喷嘴的套筒
BE1022812B1 (nl) * 2015-03-11 2016-09-13 Picanol Nv Hulpblaasmondstuk voor een weefmachine
KR102118261B1 (ko) * 2018-09-27 2020-06-02 서용교 에어제트직기에서의 다중위사 위입불량 방지장치
JP7077968B2 (ja) * 2019-01-14 2022-05-31 株式会社豊田自動織機 エアジェット織機の緯糸処理装置
CN114214778B (zh) * 2021-12-15 2023-01-31 五洋纺机有限公司 一种间隔布织造中抽除辅助纬纱的方法
IT202200002681A1 (it) * 2022-02-14 2023-08-14 Itema Spa Ugello ausiliario perfezionato per telai ad aria

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH650035A5 (en) * 1980-11-28 1985-06-28 Sulzer Ag Auxiliary blowing nozzle for an air-jet weaving machine
EP0145824B1 (de) * 1983-12-09 1987-03-04 GebràœDer Sulzer Aktiengesellschaft Hilfsblasdüse für eine Luftstrahlwebmaschine
DE3444973C1 (de) * 1984-12-10 1986-04-03 Scheffel Walter Dipl Ing Weblade mit Webblatt fuer Duesenwebmaschinen
DE3643058A1 (de) * 1986-11-21 1988-06-30 Picanol Nv Duesen-webmaschine
JP2711099B2 (ja) * 1987-09-25 1998-02-10 日産テクシス株式会社 空気噴射式織機の補助ノズル
JPH0299643A (ja) * 1988-09-29 1990-04-11 Toyota Autom Loom Works Ltd ジェットルームにおける緯入れ装置
NL1001277C1 (nl) * 1995-09-25 1997-03-26 Te Strake Bv Hulpblazer voor een weefmachine.
DE19751354C1 (de) * 1997-11-20 1999-06-17 Dornier Gmbh Lindauer Hilfsblasdüse für eine Luftdüsenwebmaschine
DE29720595U1 (de) * 1997-11-20 1998-02-05 Dornier Gmbh Lindauer Hilfsblasdüse, insbesondere für eine Luftdüsenwebmaschine

Also Published As

Publication number Publication date
EP1169503B1 (de) 2004-03-03
CN1355862A (zh) 2002-06-26
DE50014554D1 (de) 2007-09-20
US6536482B1 (en) 2003-03-25
BE1012608A3 (nl) 2001-01-09
EP1428918A2 (de) 2004-06-16
CN1116459C (zh) 2003-07-30
ATE369451T1 (de) 2007-08-15
KR20010113775A (ko) 2001-12-28
ES2213014T3 (es) 2004-08-16
WO2000063473A1 (de) 2000-10-26
EP1428918A3 (de) 2004-09-01
KR100634900B1 (ko) 2006-10-17
EP1169503A1 (de) 2002-01-09
ATE261011T1 (de) 2004-03-15
DE50005517D1 (de) 2004-04-08

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