EP0015399A1 - Tuyère pour métier à tisser pneumatique - Google Patents

Tuyère pour métier à tisser pneumatique Download PDF

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Publication number
EP0015399A1
EP0015399A1 EP80100627A EP80100627A EP0015399A1 EP 0015399 A1 EP0015399 A1 EP 0015399A1 EP 80100627 A EP80100627 A EP 80100627A EP 80100627 A EP80100627 A EP 80100627A EP 0015399 A1 EP0015399 A1 EP 0015399A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
air
section
cross
nozzles
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Withdrawn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
EP80100627A
Other languages
German (de)
English (en)
Inventor
Ernst Jud
Erich Dr. Wall
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
Publication of EP0015399A1 publication Critical patent/EP0015399A1/fr
Withdrawn legal-status Critical Current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
    • D03D47/3013—Main nozzles

Definitions

  • the invention relates to a nozzle arrangement for a loom with jet, e.g. Air jet entry, with at least two entry nozzles connected in series for the thread-like material to be inserted.
  • jet e.g. Air jet entry
  • the invention has for its object to provide a nozzle arrangement which is particularly improved in this regard.
  • the invention consists in that the cross-section of the outflow opening of a subsequent nozzle is larger than that of a preceding nozzle and that the two nozzles are connected to one another by a channel which is closed off from the outside.
  • a channel which is closed off from the outside.
  • a particularly high thread acceleration can be generated with relatively little compressed air, as is desired for high-speed weaving machines. Since no air is lost between the nozzles, a compressed air source of relatively low output can be used. Finally, the continuous connection channel between two successive nozzles prevents the ingress of fiber fly or other contaminants present in the weaving room.
  • Air is blown into three compressed air nozzles, labeled 1 - 3, at 4 compressed air according to arrow 49. This can be done intermittently according to the weft insertion.
  • Each nozzle 1-3 contains an annular distribution channel 5, from which several, for example, two, three or four channels 6 are led away. The introduced one passes through it Compressed air according to arrows 50 into the outflow opening 7 or 8 or 9 of the three nozzles.
  • the weft thread 30 to be inserted into the shed goes from a supply spool 10 according to arrow 11 into a funnel-shaped inlet opening 12 of the nozzle 1 and is captured in the inlet space 13 by the compressed air coming from the channels 6.
  • the cross section of the outflow channel 7 of the nozzle 1 is denoted by D. It is equal to the cross section of the connecting pipe 15 through which the outflow opening 7 of the nozzle 1 is connected to the inlet opening 16 of the nozzle 2.
  • the tube 15 forms a continuous channel. No compressed air escapes into the environment between nozzles 1 and 2.
  • the inflow duct 17 of the nozzle 2 provided with the same cross section D opens into the distribution or mixing space 13, in which the additional compressed air introduced via the ducts 6 of the nozzle 2 mixes with the air from the duct 1 coming from duct 17 and together in the Outflow channel 8 of the nozzle 2 is passed.
  • This has the cross section E, which is the same as the cross section of the pipe 18 connecting the nozzle 2 to the downstream nozzle 3.
  • the cross section E is larger than the cross section D of the connecting pipe 15, so that the air coming from the nozzle 1 and nozzle 2 can continue to flow together.
  • the air now enters the inflow opening 21 of the following nozzle 3 and then in the channel 22 of this nozzle to the mixing chamber 13 of the nozzle 3.
  • the air is mixed in a corresponding manner with the additional air introduced via the channels 6 of the nozzle 3, and finally in to get the outflow channel 9 from nozzle 3.
  • This has the cross section F, which is larger than the cross section E of the preceding nozzle 2.
  • the outflow pipe 23 of the nozzle 3 also has the same cross section F.
  • the thread 13 is shown in the drawing on the left out of the pipe 23 in the shed, not shown Loom guided.
  • the tubes 15, 18, 21 have a circular cross section, for example.
  • the cross section E of the outflow duct 8 of the nozzle 2 is expediently kept so large that the air coming from the duct 16 and the air additionally introduced from the ducts 6 can continue to flow without a significant change in pressure.
  • the same procedure is followed for channel 23 or cross section F.
  • a nozzle part 32 receiving the feed channels is fastened to a plate-shaped holder 31 of the weaving machine frame, on which a nozzle block 34 is placed to form a corresponding conical part 33.
  • This continues into the connecting pipe 15 to the following nozzle 2 and forms a corresponding nozzle part 35 there.
  • a nozzle block 36 belonging to the nozzle 2 is placed on it, forming a conical part 33, which correspondingly fits into the connecting pipe 18 and the nozzle part 37 of the nozzle 3 continues.
  • a nozzle block 38 is placed, forming a conical section 33, which continues into the outflow pipe 23.
  • the nozzle 3 is omitted and only the two nozzles 1 and 2 are connected in series.
  • the passage cross section of the outflow opening of a subsequent nozzle e.g. the cross section E of the outflow opening 7 of the nozzle 2
  • the passage cross section of the previous nozzle e.g. the passage cross section D at the outflow opening 7 of the nozzle 1).
  • the blown-in compressed air can exert driving force on the thread 13 from the mixing space 13 to the outlet end of the tube 23 on the left.
  • the continuous connecting pipes 15, 18 no air can escape all the way.
  • the connecting tubes 15, 18 do not have a circular shape, but rather, for example, quadra cross section.
  • the tubes 15, 18, 23 can also be designed to diverge to the left more or less in the drawing, cf. Fig. 2.
  • the cross-section to be measured directly at the outlet of a nozzle, for example F, must then be taken into account.
  • the nozzles 1 - 3 are placed directly next to one another, and the connecting pipes 15, 18 can then be dispensed with.
  • the outflow opening 7 of nozzle 1 is located directly on the inflow opening 16 of nozzle 2 and, accordingly, the outflow opening 8 of nozzle 2 is directly on the inflow opening 21 of nozzle 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Nozzles (AREA)
EP80100627A 1979-03-13 1980-02-07 Tuyère pour métier à tisser pneumatique Withdrawn EP0015399A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2373/79 1979-03-13
CH237379 1979-03-13

Publications (1)

Publication Number Publication Date
EP0015399A1 true EP0015399A1 (fr) 1980-09-17

Family

ID=4232251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80100627A Withdrawn EP0015399A1 (fr) 1979-03-13 1980-02-07 Tuyère pour métier à tisser pneumatique

Country Status (4)

Country Link
EP (1) EP0015399A1 (fr)
JP (1) JPS55128046A (fr)
AT (1) AT365249B (fr)
DE (1) DE2911862A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491962A1 (fr) * 1980-10-15 1982-04-16 Nissan Motor Tubulure d'insertion de la trame pour un metier a tisser du type a jet d'air
EP1275760A3 (fr) * 2001-07-11 2004-01-14 Kabushiki Kaisha Toyota Jidoshokki Buse d'insertion de trame pour un métier à tisser à jet d'air
CN102995234A (zh) * 2012-10-30 2013-03-27 吴江新劲纺织有限公司 一种喷气织机梭织结构

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149986U (ja) * 1983-03-24 1984-10-06 阿波スピンドル株式会社 ジエツトル−ム用ノズル
RU2132423C1 (ru) * 1998-07-08 1999-06-27 Акционерное общество закрытого типа "Стеклотекс" Устройство для прокладывания уточной нити
JP4675732B2 (ja) * 2005-09-14 2011-04-27 株式会社豊田自動織機 エアジェットルームにおける緯入れ装置
CN102677371A (zh) * 2012-06-12 2012-09-19 江苏万工科技集团有限公司 一种二次加速气流的主喷嘴及其供气系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB997244A (en) * 1962-03-01 1965-07-07 American Cyanamid Co Thread conveyor and process for conveying thread
CH441148A (de) * 1964-07-09 1967-07-31 Walter Hortmann Erich Webmaschine
DE2519981A1 (de) * 1974-05-06 1975-11-27 Rueti Ag Maschf Duesenanordnung zum eintragen von schussfaeden in ein webfach an einer webmaschine
US4105053A (en) * 1975-10-02 1978-08-08 Elitex, Koncern Textilniho Strojirenstvi Nozzle assembly for a hydraulic jet loom
DE2722810A1 (de) * 1977-05-20 1978-11-23 Neumuenster Masch App Vorrichtung zum pneumatischen einfangen und fuehren von faeden
DE2734220A1 (de) * 1977-07-29 1979-02-08 Barmag Barmer Maschf Injektorduese zum abziehen und foerdern von faeden
CH610366A5 (en) * 1976-09-27 1979-04-12 Rueti Ag Maschf Device for inserting weft threads into a shed

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5064573A (fr) * 1973-10-15 1975-05-31
NL7610385A (nl) * 1976-09-17 1978-03-21 Rueti Te Strake Bv Pneumatische weefmachine, alsmede daarvoor bestemde inslagtransporteur.
JPS54134164A (en) * 1978-04-06 1979-10-18 Nissan Motor Fluid ejecting type weft yarn introducing apparatus of loom

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB997244A (en) * 1962-03-01 1965-07-07 American Cyanamid Co Thread conveyor and process for conveying thread
CH441148A (de) * 1964-07-09 1967-07-31 Walter Hortmann Erich Webmaschine
DE2519981A1 (de) * 1974-05-06 1975-11-27 Rueti Ag Maschf Duesenanordnung zum eintragen von schussfaeden in ein webfach an einer webmaschine
US4105053A (en) * 1975-10-02 1978-08-08 Elitex, Koncern Textilniho Strojirenstvi Nozzle assembly for a hydraulic jet loom
CH610366A5 (en) * 1976-09-27 1979-04-12 Rueti Ag Maschf Device for inserting weft threads into a shed
DE2722810A1 (de) * 1977-05-20 1978-11-23 Neumuenster Masch App Vorrichtung zum pneumatischen einfangen und fuehren von faeden
DE2734220A1 (de) * 1977-07-29 1979-02-08 Barmag Barmer Maschf Injektorduese zum abziehen und foerdern von faeden

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491962A1 (fr) * 1980-10-15 1982-04-16 Nissan Motor Tubulure d'insertion de la trame pour un metier a tisser du type a jet d'air
EP1275760A3 (fr) * 2001-07-11 2004-01-14 Kabushiki Kaisha Toyota Jidoshokki Buse d'insertion de trame pour un métier à tisser à jet d'air
CN102995234A (zh) * 2012-10-30 2013-03-27 吴江新劲纺织有限公司 一种喷气织机梭织结构

Also Published As

Publication number Publication date
AT365249B (de) 1981-12-28
DE2911862A1 (de) 1980-09-25
JPS55128046A (en) 1980-10-03
ATA227279A (de) 1981-05-15

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

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17P Request for examination filed
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Designated state(s): FR GB IT

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19810409

RIN1 Information on inventor provided before grant (corrected)

Inventor name: WALL, ERICH, DR.

Inventor name: JUD, ERNST