EP0145824A1 - Buse de soufflage auxiliaire pour métier à tisser à jet d'air - Google Patents

Buse de soufflage auxiliaire pour métier à tisser à jet d'air Download PDF

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Publication number
EP0145824A1
EP0145824A1 EP83810580A EP83810580A EP0145824A1 EP 0145824 A1 EP0145824 A1 EP 0145824A1 EP 83810580 A EP83810580 A EP 83810580A EP 83810580 A EP83810580 A EP 83810580A EP 0145824 A1 EP0145824 A1 EP 0145824A1
Authority
EP
European Patent Office
Prior art keywords
rib
inflow channel
outflow opening
blowing nozzle
auxiliary blowing
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
Application number
EP83810580A
Other languages
German (de)
English (en)
Other versions
EP0145824B1 (fr
Inventor
Charles Dr. Knisely
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.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer 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 Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Priority to DE8383810580T priority Critical patent/DE3370035D1/de
Priority to EP83810580A priority patent/EP0145824B1/fr
Priority to JP59252785A priority patent/JPH0621399B2/ja
Priority to US06/677,863 priority patent/US4585038A/en
Publication of EP0145824A1 publication Critical patent/EP0145824A1/fr
Application granted granted Critical
Publication of EP0145824B1 publication Critical patent/EP0145824B1/fr
Expired 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
    • D03D47/3006—Construction of the nozzles
    • D03D47/302—Auxiliary 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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • 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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means
    • D03D47/36—Measuring and cutting the weft

Definitions

  • the invention relates to an auxiliary blowing nozzle for an air jet weaving machine, with an inflow channel and an outflow opening angled relative thereto.
  • an oblique blowing into the firing line or into the guide channel is to be achieved by vertically flowing upwards and then deflecting the air in the horizontal oblique direction.
  • this known nozzle has the disadvantage that when the air is deflected, a swirl occurs in which the individual flow elements are subjected to centrifugal force. As a result, the air jet is cyclically swirled and torn apart as it exits the nozzle.
  • the measure is used that in the end region of the inflow channel facing the outflow opening, at least one is parallel to its longitudinal direction device extending rib is provided.
  • the rib can extend essentially to the opposite wall of the inflow channel. In this way, an optimal swirl prevention or directivity is achieved with relatively simple production.
  • the bottom of the inflow channel facing the rib can be inclined to the longitudinal center plane of the rib. In this way, an additional inclination or angling of the outlet flow can be achieved.
  • the end region of the inflow channel surrounding the rib can have two sub-channels of different cross-section. This allows the beam angle to be influenced in a particularly simple manner.
  • the flanks of the rib can be inclined differently to the longitudinal center plane thereof. In this way, the guiding effect of the rib in relation to the outflow channel and thus the directional effect can be additionally improved.
  • the length L of the outflow opening can be greater than half its diameter d. As a result, the scattering of the exit jet can be reduced further.
  • the edge of the outflow opening facing the rib can also be rounded.
  • the effective cross section and the effective guide length of the outflow opening is enlarged, with which an additional strengthening of the directivity can be achieved.
  • the end region of the inflow channel can have an approximately triangular bevel which tapers in the direction of the outflow opening.
  • the weft yarn 12 drawn off from a supply spool 10 (FIG. 1) is guided at a constant speed over driver rollers 14, the yarn length per weft being determined by the circumference and the speed of the cutting disk 16 in accordance with the fabric width.
  • the thread stopper 18 When the thread stopper 18 is closed, the weft yarn 12 is kept ready for the weft insertion by the air flow from an auxiliary nozzle 20 in the form of a yarn loop 22 in the blow thread store 24.
  • the thread stopper 18 opens the begins To blow the main nozzle 26 j, the air supply of which is indicated according to arrow 25, so that the weft yarn 12 starts to move when the thread stopper 18 is opened.
  • the yarn loop 22 is removed and the weft yarn 12 is blown into the guide channel 28 of the reed 30 with the shed 27 open, the air outlet streams 32 of the auxiliary blowing nozzles 34 arranged as relay nozzles now carrying the weft yarn 12 through the shed 27.
  • the thread stopper 18 closes.
  • the stretched weft yarn 12 is cast on and cut by the cutting device 36 after the shed is closed.
  • the finished fabric is designated 37.
  • the auxiliary blowing nozzle 34 (FIGS. 2, 3) has an inflow channel 38 which has a constriction 42 in the area in front of the outflow opening 40 in a manner known per se.
  • a rib 46 (FIG. 3) which extends parallel to its longitudinal direction and extends essentially up to the opposite wall 47 of the inflow channel 38.
  • the end region 44 of the inflow channel 38 surrounding the rib 46 has two sub-channels 48, 50 of different cross-section (FIG. 4).
  • the bottom 52 of the inflow channel 38 facing the rib 46 is inclined to the longitudinal center plane of the rib 46.
  • the flanks 54, 56 can be inclined differently to the longitudinal center plane, e.g. the flank 54 parallel to it, the flank 56 at an angle of approximately 15 ° to 30 °.
  • the length L of the outflow opening 40 is greater than half its diameter d (FIGS. 3, 4).
  • the edge 58 facing the rib 46 rounded.
  • the end region 44 of the inflow channel 38 has a triangular bevel 60 that tapers towards the outflow opening 40.
  • rib instead of a rib, two adjacent bores or channels can also be provided. Furthermore, the rib can also extend at least partially into the outflow opening 40.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
EP83810580A 1983-12-09 1983-12-09 Buse de soufflage auxiliaire pour métier à tisser à jet d'air Expired EP0145824B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE8383810580T DE3370035D1 (en) 1983-12-09 1983-12-09 Auxiliary nozzle for an air jet loom
EP83810580A EP0145824B1 (fr) 1983-12-09 1983-12-09 Buse de soufflage auxiliaire pour métier à tisser à jet d'air
JP59252785A JPH0621399B2 (ja) 1983-12-09 1984-11-29 空気織機用補助吹出しノズル
US06/677,863 US4585038A (en) 1983-12-09 1984-12-04 Auxiliary blow nozzle for a pneumatic weaving machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83810580A EP0145824B1 (fr) 1983-12-09 1983-12-09 Buse de soufflage auxiliaire pour métier à tisser à jet d'air

Publications (2)

Publication Number Publication Date
EP0145824A1 true EP0145824A1 (fr) 1985-06-26
EP0145824B1 EP0145824B1 (fr) 1987-03-04

Family

ID=8191580

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83810580A Expired EP0145824B1 (fr) 1983-12-09 1983-12-09 Buse de soufflage auxiliaire pour métier à tisser à jet d'air

Country Status (4)

Country Link
US (1) US4585038A (fr)
EP (1) EP0145824B1 (fr)
JP (1) JPH0621399B2 (fr)
DE (1) DE3370035D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739767A1 (de) * 1987-11-24 1989-06-15 Dornier Gmbh Lindauer Stuetzduese fuer webmaschinen mit pneumatischem schusseintrag
EP0541489A1 (fr) * 1991-11-07 1993-05-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Tuyère auxiliaire dans un métier à jet
WO1999027171A1 (fr) * 1997-11-20 1999-06-03 Lindauer Dornier Gesellschaft Mbh Buse de soufflage auxiliaire destinee a un metier a tisser a buse d'air

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3643058A1 (de) * 1986-11-21 1988-06-30 Picanol Nv Duesen-webmaschine
BE1012608A3 (nl) * 1999-04-14 2001-01-09 Picanol Nv Spuitmondstuk voor een weefmachine.
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.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8001447A (nl) * 1979-03-14 1980-09-16 Toyoda Automatic Loom Works Geleidingskam voor de inslagdraad bij een onder invloed van een fluidumstraal werkende weefinrichting.
FR2475586A1 (fr) * 1980-02-11 1981-08-14 Rueti Te Strake Bv Buse de soufflage avec ouverture protegee pour une machine a tisser sans navette
DE3204363A1 (de) * 1982-02-09 1983-08-11 Guenne Webmaschf Gmbh Verfahren und strahlduese zum transportieren eines schussfadens durch ein webfach mittels druckluft

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH610222A5 (en) * 1976-09-07 1979-04-12 Rueti Ag Maschf Process for producing a nozzle and use of the nozzle
JPS5852305Y2 (ja) * 1979-06-30 1983-11-29 株式会社豊田自動織機製作所 流体噴射式織機における緯糸ガイド
EP0053216B1 (fr) * 1980-11-28 1984-03-14 GebràœDer Sulzer Aktiengesellschaft Buse de soufflage auxiliaire pour métier à tisser à jet d'air

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8001447A (nl) * 1979-03-14 1980-09-16 Toyoda Automatic Loom Works Geleidingskam voor de inslagdraad bij een onder invloed van een fluidumstraal werkende weefinrichting.
FR2475586A1 (fr) * 1980-02-11 1981-08-14 Rueti Te Strake Bv Buse de soufflage avec ouverture protegee pour une machine a tisser sans navette
DE3204363A1 (de) * 1982-02-09 1983-08-11 Guenne Webmaschf Gmbh Verfahren und strahlduese zum transportieren eines schussfadens durch ein webfach mittels druckluft

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3739767A1 (de) * 1987-11-24 1989-06-15 Dornier Gmbh Lindauer Stuetzduese fuer webmaschinen mit pneumatischem schusseintrag
EP0541489A1 (fr) * 1991-11-07 1993-05-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Tuyère auxiliaire dans un métier à jet
WO1999027171A1 (fr) * 1997-11-20 1999-06-03 Lindauer Dornier Gesellschaft Mbh Buse de soufflage auxiliaire destinee a un metier a tisser a buse d'air
DE19751354C1 (de) * 1997-11-20 1999-06-17 Dornier Gmbh Lindauer Hilfsblasdüse für eine Luftdüsenwebmaschine
US6138719A (en) * 1997-11-20 2000-10-31 Lindauer Dornier Gesellschaft Mbh Auxiliary blow nozzle for an air jet weaving machine

Also Published As

Publication number Publication date
DE3370035D1 (en) 1987-04-09
EP0145824B1 (fr) 1987-03-04
US4585038A (en) 1986-04-29
JPS60134048A (ja) 1985-07-17
JPH0621399B2 (ja) 1994-03-23

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