EP0023929B1 - Buses pour métier à tisser à jet de fluide - Google Patents

Buses pour métier à tisser à jet de fluide Download PDF

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Publication number
EP0023929B1
EP0023929B1 EP79102849A EP79102849A EP0023929B1 EP 0023929 B1 EP0023929 B1 EP 0023929B1 EP 79102849 A EP79102849 A EP 79102849A EP 79102849 A EP79102849 A EP 79102849A EP 0023929 B1 EP0023929 B1 EP 0023929B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
channel
guide tube
outflow
air
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
Application number
EP79102849A
Other languages
German (de)
English (en)
Other versions
EP0023929A1 (fr
Inventor
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
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 Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Priority to EP79102849A priority Critical patent/EP0023929B1/fr
Priority to AT79102849T priority patent/ATE2853T1/de
Priority to DE7979102849T priority patent/DE2965070D1/de
Priority to US06/168,522 priority patent/US4367772A/en
Priority to BR8004976A priority patent/BR8004976A/pt
Priority to JP10880780A priority patent/JPS5631041A/ja
Publication of EP0023929A1 publication Critical patent/EP0023929A1/fr
Application granted granted Critical
Publication of EP0023929B1 publication Critical patent/EP0023929B1/fr
Priority to JP1985182786U priority patent/JPS6198887U/ja
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
    • D03D47/3013—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
    • D03D47/34—Handling the weft between bulk storage and weft-inserting means

Definitions

  • the invention relates to a nozzle arrangement for a loom with jet, for. B. air jet entry, with at least one, the entry jet including the entry material enclosing outflow channel having entry nozzle.
  • the entry nozzle has an immovable outflow channel which is firmly connected to the nozzle body and which is directed against the shed of the weaving machine or against a downstream entry nozzle.
  • the weft thread to be inserted can also be brought relatively easily out of its direction and flung into the environment. This can be especially when threading a new weft z. B. occur after a weft break. In this case, the tip of the weft thread to be threaded is deflected from the entry line and guided into the environment, which leads to disturbances.
  • the air consumption in the known arrangement is relatively high due to the practically complete air outlet between the individual nozzles into the environment.
  • the invention has for its object to provide a particularly improved arrangement in this regard.
  • the invention consists in that an additional guide channel, which is adjustable parallel to the direction of flow of the entry jet and is held in its fixed position outside the shed during operation, is connected downstream of the outflow channel.
  • This makes it possible to restrict the free space between the outflow channel of the nozzle and the shed or the downstream nozzle to a greater or lesser extent or to separate this space from the air flow practically at all.
  • the sliding guide tube can be set to an optimal value, which results from experience or by trial and error during web operation. At this optimum value, the free distance between the outflow channel of the nozzle and the shed or the downstream nozzle is relatively small, so that only a certain amount of air can flow out into the free space. It can be achieved in this way that the weft thread has only a relatively slight tendency to deviate from the weft line or to be deflected into the surroundings. The air consumption can be kept relatively low.
  • a nozzle arrangement is also known (AT-PS 227 199), in which a guide tube is slidably arranged on a stationary air outflow channel. However, the guide tube is driven and is pushed into the shed for the weft insertion. At the same time, an intake manifold is inserted in the opposite direction from the other side of the compartment. The air flow does not occur intermittently, but continuously under slight overpressure. Through the bilateral guide tubes, it should be directed through the shed for the purpose of weft insertion, whereby the weft thread is taken along.
  • a housing 1 contains two nozzles, which are denoted as a whole by 2, 3 and are connected in series.
  • Each nozzle 2, 3 contains a nozzle body 4, which is inserted into a bore 6 of the housing 1 with the interposition of rubber seals 5.
  • the nozzle body 4 contains a thread channel 8 for the weft 7 coming from a weft supply spool (not shown) and several air supply channels 9 arranged around it. These receive air through a supply channel) H.
  • axially displaceable guide tube 14 can, for. B. in Fig. 1 to the left that between its outlet opening 16 and the inlet opening 17 of the following nozzle 3 only a small distance C of z. B. is one to two millimeters.
  • the speed of the air leaving the tube 12 at the outlet opening 21 of the nozzle 2 is greatly reduced by increasing the cross section from A to B. This allows a relatively large central area M in the cross section B arise, which has practically constant speed. In comparison, the marginal areas are negligibly small. This has a stabilizing effect on the thread guide; the thread has an increased tendency to remain in the middle area. Compare the corresponding speed arrows in the diagram of Fig. 1b. Part of the air can escape into the environment at C. The remaining part enters the inflow opening 17 of the following nozzle 3.
  • the guide tube 14 located at the nozzle 3 can be brought relatively close to the shed 20 formed by the warp threads 22 moved according to arrow 62, where a fabric 23 is produced by inserting the weft threads 7.
  • the guide tube 14 of the nozzle 2 can, for example, also be pushed to the left in FIG. 1 to such an extent that it projects into the inflow opening 17 of the nozzle 3 or sits on the inflow funnel 24 according to FIG. In this case, little or no air can escape into the environment.
  • the guide tube 14 has two rows of perforation holes 27 only in the end region 26. A portion of the air can escape into the environment through them, even if the tube 14 according to FIG. 1 is to the left is pushed out that it protrudes into the inlet opening 17 of the nozzle 3 or is seated on the inflow funnel 24.
  • the guide tube 14 and the tube 12 have threads 28, as a result of which the tube 14 can be moved and adjusted axially.
  • the guide tube 14 has perforation holes 27 along its entire length. As a result, the amount of air exiting through the tube 14 into the environment can be adjusted.
  • a guide tube 14a is provided between the thread channel 12 or the outlet opening 21 of the nozzle 2 and the inlet opening 17 of the nozzle 3 and is arranged on a holder 31 which can be displaced in a guide 42 according to arrow 45.
  • Its cross-section F is substantially larger than the cross-section A of the channel 12 of the nozzle 2. Also in this way it can be achieved that a relatively large, medium flow area of practically constant speed is created in the pipe 14a.
  • the nozzles 2, 3 can be arranged so as to be displaceable and adjustable relative to one another in the frame 1 due to guides 41, 43 (arrows 44, 46).
  • the tube 14a can then, for. B. protrude with its end 14b over the thread channel 12 under game 34.
  • a certain amount of air can escape through the slot 34 into the environment or into the tube 14a.
  • the conditions with regard to the guidance of the weft thread 7 between the nozzles 2, 3 on the one hand and the air entraining it on the other hand can be changed in different respects.
  • the guide tube between the two nozzles can also be set to optimal conditions by the operating personnel, particularly during weaving operation.
  • the nozzle 2 and the associated outflow pipe 12 and the guide pipe 14 are omitted and only the nozzle 3 with the associated parts 12, 14 is present. There is therefore an arrangement having only one entry nozzle, in which the guide tube 14 can be displaced more or less in the direction of the shed 20.
  • a plurality of guide tubes 14a of different lengths which can optionally be pushed onto the outflow pipe 12, can belong to a nozzle 2 or 3.
  • the cross section B of the guide tube 14 (FIG. 6) can also be made only slightly larger than the cross section A of the outflow channel 12 of the nozzle 2 or 3, so that practically no speed difference occurs at the transition point 21.
  • the guide tube 14 has only an elongating effect for the air emerging from the nozzle in question and the weft thread 7 carried along, so that the amount of air escaping into the environment can be regulated and thus the tendency of the weft thread 7 to deflect can be influenced.
  • a further channel can also be slidably attached to the guide channel 14, so that a z. B. consists of three parts, telescopic arrangement.
  • a guide tube 14c which can be displaced on the outflow pipe 12 and which has a conical extension 30 at its free end (on the left in FIG. 7) is used.
  • the conical extension 30 can act on the air jet in the manner of a Laval nozzle. If necessary, a plurality of guide channels 14c, which have different conicity 30 and can optionally be pushed onto the tube 12, can belong to the same outflow pipe 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Looms (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Surgical Instruments (AREA)

Claims (7)

1. Arrangement de buses pour un métier à tisser avec introduction de jet, par exemple jet d'air, comportant au moins une buse d'introduction ayant un canal de décharge entourant le jet d'introduction ainsi que la matière d'introduction, caractérisé en ce que le canal de décharge (12) est monté en amont d'un canal de guidage additionnel (14), déplaçable (flèche 61) parallèlement au sens d'écoulement (flèche 7) du jet d'introduction, maintenu pendant le fonctionnement dans sa position fixe par rapport au pas de chaîne.
2. Arrangement selon la revendication 1, caractérisé en ce que le canal de guidage est un tube (14) qu'on peut déplacer alternativement sur le canal de décharge (12).
3. Arrangement selon la revendication 1 ou 2, caractérisé en ce que le canal de guidage (14) présente au moins sur son extrémité libre (26) des trous de perforation (27).
4. Arrangement selon la revendication 1 et la revendication 2, caractérisé en ce qu'un joint élastique (13) est disposé entre le canal de guidage (14) et le canal de décharge (12).
5. Arrangement selon la revendication 1 et la revendication 2, caractérisé en ce que le canal de guidage (14) et le canal de décharge (12) présentent des filets (28) et que le canal de guidage (14) est vissé sur le canal de décharge (12).
6. Arrangement selon l'une des revendications précédentes, caractérisé en ce que le canal de guidage (14) a une section transversale sensiblement plus importante (B) en comparaison de la section transversale (A) du canal de décharge (12).
7. Arrangement selon l'une des revendications 1 à 5, caractérisé en ce que le canal de guidage (14c) présente à son extrémité libre un élargissement conique (30).
EP79102849A 1979-08-08 1979-08-08 Buses pour métier à tisser à jet de fluide Expired EP0023929B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP79102849A EP0023929B1 (fr) 1979-08-08 1979-08-08 Buses pour métier à tisser à jet de fluide
AT79102849T ATE2853T1 (de) 1979-08-08 1979-08-08 Duesenanordnung fuer eine webmaschine mit strahleintrag.
DE7979102849T DE2965070D1 (en) 1979-08-08 1979-08-08 Nozzle arrangement for a jet loom
US06/168,522 US4367772A (en) 1979-08-08 1980-07-14 Nozzle assembly for a weaving machine
BR8004976A BR8004976A (pt) 1979-08-08 1980-08-07 Conjunto de bocais para tear com injecao a jato
JP10880780A JPS5631041A (en) 1979-08-08 1980-08-07 Nozzle apparatus used in loom equipped with apparatus for passing yarn by injected stream
JP1985182786U JPS6198887U (fr) 1979-08-08 1985-11-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP79102849A EP0023929B1 (fr) 1979-08-08 1979-08-08 Buses pour métier à tisser à jet de fluide

Publications (2)

Publication Number Publication Date
EP0023929A1 EP0023929A1 (fr) 1981-02-18
EP0023929B1 true EP0023929B1 (fr) 1983-03-23

Family

ID=8186169

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79102849A Expired EP0023929B1 (fr) 1979-08-08 1979-08-08 Buses pour métier à tisser à jet de fluide

Country Status (6)

Country Link
US (1) US4367772A (fr)
EP (1) EP0023929B1 (fr)
JP (2) JPS5631041A (fr)
AT (1) ATE2853T1 (fr)
BR (1) BR8004976A (fr)
DE (1) DE2965070D1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668137A (en) * 1979-10-30 1981-06-08 Ishikawa Seisakusho Kk Weft yarn inserting nozzle of air jet type loom
BR8108872A (pt) * 1980-11-17 1982-10-13 Rueti Te Strake Bv Um processo para transportar um fio flexivel por intermedio de um gas sob pressao
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
US4494888A (en) * 1981-07-27 1985-01-22 Seisakusho Kabushiki Kaisha Toyoda Jidoshokki Weft inserting method and apparatus for an air jet loom
CH653387A5 (de) * 1982-02-19 1985-12-31 Rueti Ag Maschf Reihenfachwebmaschine mit einem webrotor.
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.
JPH0665775B2 (ja) * 1986-03-08 1994-08-24 津田駒工業株式会社 流体噴射無杼織機の多色緯糸挿入装置
NL8603069A (nl) * 1986-12-02 1988-07-01 Picanol Nv Hoofdblazer met verhoogde trekkracht voor weefmachines.
JPH0629411Y2 (ja) * 1988-08-19 1994-08-10 マツダ株式会社 車両のアウタハンドル装置
FR2644800B1 (fr) * 1989-03-22 1991-05-31 Saurer Diederichs Sa Dispositif d'alimentation en fil de trame pour machine a tisser avec insertion pneumatique de la trame
BE1005230A3 (nl) * 1991-01-04 1993-06-01 Picanol Nv Inrichting voor het strekken van een inslagdraad bij weefmachines.
US6497257B1 (en) 2002-02-28 2002-12-24 Glen Raven, Inc. Control of fill yarn during basket weave type patterns on air jet looms
JP5008185B2 (ja) * 2007-03-30 2012-08-22 津田駒工業株式会社 緯入れノズル
JP2009007694A (ja) * 2007-06-27 2009-01-15 Tsudakoma Corp 緯入れノズルおよび緯入れノズルに用いられる緯糸のノズル抜け防止部材
CN103603125B (zh) * 2013-12-10 2015-10-28 苏州大学 一种喷气织机的主喷嘴结构及主喷嘴内气流加速方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU48005A1 (ru) * 1935-10-09 1936-08-31 И.С. Дацюк Электростатический сепаратор
BE564609A (fr) * 1957-02-08
AT227199B (de) * 1959-05-25 1963-05-10 Walter Scheffel Webstuhl
US3180368A (en) * 1962-01-23 1965-04-27 Prince Jidosha Kogyo Kabushiki Device for projecting weft yarns in fluid jet type shuttleless loom
NL7206367A (fr) * 1972-05-10 1973-11-13
JPS5027100A (fr) * 1973-07-13 1975-03-20
CH594089A5 (fr) * 1976-01-27 1977-12-30 Rueti Ag Maschf
NL7701916A (nl) * 1976-02-27 1977-08-30 Scheffel Walter Werkwijze en inrichting voor het inbrengen van de inslag bij een weefgetouw.
NL7610385A (nl) * 1976-09-17 1978-03-21 Rueti Te Strake Bv Pneumatische weefmachine, alsmede daarvoor bestemde inslagtransporteur.
CH610366A5 (en) * 1976-09-27 1979-04-12 Rueti Ag Maschf Device for inserting weft threads into a shed
JPS53119367A (en) * 1977-03-24 1978-10-18 Nissan Motor Device for weft insertion for fluid jet loom

Also Published As

Publication number Publication date
ATE2853T1 (de) 1983-04-15
BR8004976A (pt) 1981-02-24
DE2965070D1 (en) 1983-04-28
JPS6198887U (fr) 1986-06-24
JPS5631041A (en) 1981-03-28
US4367772A (en) 1983-01-11
EP0023929A1 (fr) 1981-02-18

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