EP0023929A1 - Buses pour métier à tisser à jet de fluide - Google Patents
Buses pour métier à tisser à jet de fluide Download PDFInfo
- Publication number
- EP0023929A1 EP0023929A1 EP79102849A EP79102849A EP0023929A1 EP 0023929 A1 EP0023929 A1 EP 0023929A1 EP 79102849 A EP79102849 A EP 79102849A EP 79102849 A EP79102849 A EP 79102849A EP 0023929 A1 EP0023929 A1 EP 0023929A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- channel
- guide channel
- outflow
- guide tube
- 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
Links
Images
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, e.g. Air jet entry, with at least one entry nozzle having an outflow channel for the thread-like material to be entered.
- jet e.g. Air jet entry
- the entry nozzle has a fixed outflow channel 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 relatively easily brought out of its direction and thrown into the environment. This can be especially important when threading a new weft thread e.g. occur after a weft break. In this case, the tip of the weft thread to be threaded is deflected out of the entry line and guided into the environment, which leads to faults.
- the invention is based, in particular the task to provide improved arrangement in this regard.
- the invention consists in that the outflow channel is followed by a guide channel which can be pushed parallel to the direction of flow of the entry jet. 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 into the free space. In this way it can be achieved that the weft thread has only a relatively slight tendency to deviate from the weft line or to be deflected into the surroundings.
- a housing 1 contains two nozzles, which are designated 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 a weft thread bobbin 7, not shown, and a plurality of air supply channels 9 arranged around it. These receive air through a supply channel 11.
- each nozzle 2.3 whose cross section is denoted by A, with the interposition of, for example, is a dense tungsrin it f 13 a guide tube 14 slid, the cross section B in comparison to the cross-section O is substantially larger, four to Is eight times.
- the guide tube 14 located on the nozzle 2 and axially displaceable according to arrow 61 can e.g. 1 pushed so far to the left that between its outlet opening 16 and the inlet opening 17 of the following nozzle 3 there is only a small distance C of e.g. 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 can result in a relatively large central region 11 in cross section B, which has a practically constant speed. The marginal areas are negligibly small in comparison. This has a stabilizing effect on the thread guide; the thread has an increased tendency to remain in the middle area. See 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 nozzle 2 can, for example, also in 1 are pushed to the left until it protrudes into the inflow opening 17 of the nozzle 3 or sits on the inflow funnel 24 according to FIG. 1a. 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 is able to escape into the environment through them, even if the tube 14 according to FIG is pushed out that it projects into the inlet opening 17 of the nozzle 3 or sits on the inflow funnel 24.
- the guide tube 14 and the tube 12 have threads 28, whereby the tube 14 is axially displaceable and adjustable.
- 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 surroundings 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, middle flow area of practically constant speed is created in the pipe 14a.
- the nozzles 2, 3 can be arranged to be displaceable and adjustable relative to one another in the frame 1 due to guides 41, 43 (arrows 44, 46).
- the pipe 14a can then e.g. project with its end 14b over the thread channel 12 under play 34.
- a certain amount of air can escape through the slot 34 or enter 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 various ways.
- the guide tube between the two nozzles can be adjusted to optimal conditions by the operating personnel, especially 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 B (Fig. 5). If necessary, a plurality of guide tubes 14a of different lengths that 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 telescopic arrangement consisting, for example, of three parts is present.
- 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 is able to 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)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 |
EP79102849A EP0023929B1 (fr) | 1979-08-08 | 1979-08-08 | Buses pour métier à tisser à jet de fluide |
US06/168,522 US4367772A (en) | 1979-08-08 | 1980-07-14 | Nozzle assembly for a weaving machine |
JP10880780A JPS5631041A (en) | 1979-08-08 | 1980-08-07 | Nozzle apparatus used in loom equipped with apparatus for passing yarn by injected stream |
BR8004976A BR8004976A (pt) | 1979-08-08 | 1980-08-07 | Conjunto de bocais para tear com injecao a jato |
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 true EP0023929A1 (fr) | 1981-02-18 |
EP0023929B1 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) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0069272A2 (fr) * | 1981-07-02 | 1983-01-12 | Nissan Motor Co., Ltd. | Tuyère d'insertion de trame dans un métier à tisser du type à jet d'air |
EP0087513A1 (fr) * | 1982-02-19 | 1983-09-07 | Maschinenfabrik Sulzer-Rüti Ag | Métier à tisser avec tambour de foule |
EP0239137A1 (fr) * | 1986-02-21 | 1987-09-30 | Picanol N.V. | Dispositif pour l'insertion de fils de trame dans la foule de métiers à tisser à jet d'air et tuyères ajustables utilisées dans ce but |
EP0389387A1 (fr) * | 1989-03-22 | 1990-09-26 | S.A. Saurer Diederichs | Dispositif d'alimentation en fil de trame pour machine à tisser avec insertion pneumatique de la trame |
Families Citing this family (11)
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 |
US4494888A (en) * | 1981-07-27 | 1985-01-22 | Seisakusho Kabushiki Kaisha Toyoda Jidoshokki | Weft inserting method and apparatus for an air jet loom |
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 |
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 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH365346A (de) * | 1957-02-08 | 1962-10-31 | Strake Maschf Nv | Webstuhl, bei dem das Eintragen des Schussfadens auf pneumatischem Weg erfolgt |
AT227199B (de) * | 1959-05-25 | 1963-05-10 | Walter Scheffel | Webstuhl |
DE2323650A1 (de) * | 1972-05-10 | 1973-11-29 | Rueti Te Strake Bv | Webmaschine |
CH594089A5 (fr) * | 1976-01-27 | 1977-12-30 | Rueti Ag Maschf | |
DE2741859A1 (de) * | 1976-09-17 | 1978-03-23 | Rueti Te Strake Bv | Pneumatische webmaschine sowie schusseintragsvorrichtung dafuer |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU48005A1 (ru) * | 1935-10-09 | 1936-08-31 | И.С. Дацюк | Электростатический сепаратор |
US3180368A (en) * | 1962-01-23 | 1965-04-27 | Prince Jidosha Kogyo Kabushiki | Device for projecting weft yarns in fluid jet type shuttleless loom |
JPS5027100A (fr) * | 1973-07-13 | 1975-03-20 | ||
NL7701916A (nl) * | 1976-02-27 | 1977-08-30 | Scheffel Walter | Werkwijze en inrichting voor het inbrengen van de inslag bij een weefgetouw. |
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 |
-
1979
- 1979-08-08 EP EP79102849A patent/EP0023929B1/fr not_active Expired
- 1979-08-08 DE DE7979102849T patent/DE2965070D1/de not_active Expired
- 1979-08-08 AT AT79102849T patent/ATE2853T1/de not_active IP Right Cessation
-
1980
- 1980-07-14 US US06/168,522 patent/US4367772A/en not_active Expired - Lifetime
- 1980-08-07 BR BR8004976A patent/BR8004976A/pt unknown
- 1980-08-07 JP JP10880780A patent/JPS5631041A/ja active Pending
-
1985
- 1985-11-27 JP JP1985182786U patent/JPS6198887U/ja active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH365346A (de) * | 1957-02-08 | 1962-10-31 | Strake Maschf Nv | Webstuhl, bei dem das Eintragen des Schussfadens auf pneumatischem Weg erfolgt |
AT227199B (de) * | 1959-05-25 | 1963-05-10 | Walter Scheffel | Webstuhl |
DE2323650A1 (de) * | 1972-05-10 | 1973-11-29 | Rueti Te Strake Bv | Webmaschine |
CH594089A5 (fr) * | 1976-01-27 | 1977-12-30 | Rueti Ag Maschf | |
DE2741859A1 (de) * | 1976-09-17 | 1978-03-23 | Rueti Te Strake Bv | Pneumatische webmaschine sowie schusseintragsvorrichtung dafuer |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0069272A2 (fr) * | 1981-07-02 | 1983-01-12 | Nissan Motor Co., Ltd. | Tuyère d'insertion de trame dans un métier à tisser du type à jet d'air |
EP0069272A3 (en) * | 1981-07-02 | 1983-05-18 | Nissan Motor Company, Limited | A weft inserting nozzle of an air-jet type weaving loom |
EP0087513A1 (fr) * | 1982-02-19 | 1983-09-07 | Maschinenfabrik Sulzer-Rüti Ag | Métier à tisser avec tambour de foule |
EP0239137A1 (fr) * | 1986-02-21 | 1987-09-30 | Picanol N.V. | Dispositif pour l'insertion de fils de trame dans la foule de métiers à tisser à jet d'air et tuyères ajustables utilisées dans ce but |
US4813460A (en) * | 1986-02-21 | 1989-03-21 | Picanol N.V. | Device for the insertion of weft threads into the shed of air-looms and adjustable blowers used to this end |
EP0389387A1 (fr) * | 1989-03-22 | 1990-09-26 | S.A. Saurer Diederichs | Dispositif d'alimentation en fil de trame pour machine à tisser avec insertion pneumatique de la trame |
FR2644800A1 (fr) * | 1989-03-22 | 1990-09-28 | Saurer Diederichs Sa | Dispositif d'alimentation en fil de trame pour machine a tisser avec insertion pneumatique de la trame |
Also Published As
Publication number | Publication date |
---|---|
ATE2853T1 (de) | 1983-04-15 |
US4367772A (en) | 1983-01-11 |
BR8004976A (pt) | 1981-02-24 |
EP0023929B1 (fr) | 1983-03-23 |
JPS6198887U (fr) | 1986-06-24 |
JPS5631041A (en) | 1981-03-28 |
DE2965070D1 (en) | 1983-04-28 |
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