EP0053216A1 - 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 PDFInfo
- Publication number
- EP0053216A1 EP0053216A1 EP19800810369 EP80810369A EP0053216A1 EP 0053216 A1 EP0053216 A1 EP 0053216A1 EP 19800810369 EP19800810369 EP 19800810369 EP 80810369 A EP80810369 A EP 80810369A EP 0053216 A1 EP0053216 A1 EP 0053216A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- nozzle
- section
- edge
- shed
- warp threads
- 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
- D03D47/302—Auxiliary nozzles
Definitions
- the invention relates to an auxiliary blowing nozzle for the shed of an air jet loom.
- a previous nozzle of this type (DE-OS 21 45 256) consists of a tube with a rounded head, from which the air can escape through a side hole in the loom of the loom.
- the tubular nozzle is usually guided obliquely to its longitudinal axis against the warp threads in the down position. In particular at high speed, it can happen that the warp threads are not separated with sufficient precision by the nozzle which is brought in, as a result of which the yarn can be damaged or torn (split).
- the invention has for its object to provide an auxiliary blowing nozzle which is particularly improved in this regard.
- the invention consists in that the free end of the nozzle which enters between the warp threads is roof-shaped and has an edge which runs essentially parallel to those warp threads which are penetrated by the latter when the nozzle is inserted into the shed.
- the auxiliary blowing nozzle can be moved between the warp threads with the more or less sharp upper edge, whereby these are successively widened in accordance with the inclination of the roof-shaped end of the nozzle will.
- the warp threads are therefore not suddenly pushed, but gradually pushed apart or divided.
- the auxiliary blowing nozzle according to the invention can work particularly trouble-free and without destroying warp threads.
- a sley 2 pivoted back and forth during weaving operation carries a reed 3, several auxiliary blowing nozzles 4 and several guide teeth 7 forming a guide channel 5 for the weft thread 6 to be inserted.
- the nozzle 4 has a roof-shaped upper end 8 with a more or less sharpened edge 9, cf. Fig. 2,3.
- the air is fed to the nozzle 4 through a hose 11 and a feed channel 12 in accordance with a control program.
- Channel 12 consists of a rising section 13 of cross section C, which is arranged eccentrically in the region of the nozzle base 14, cf. 4.
- the riser section 13 is adjoined by an essentially horizontally running air outlet section 15, which has a smaller cross section D than section 13.
- the flow can be throttled in this section achieve.
- the Air emerges through an opening 16 into the thread guide channel 5, whereby the weft thread 6 is carried by the shed 19 formed by the warp threads 17, 18.
- the edge 9 runs essentially parallel to the warp threads 17.
- the drawer 2 with the parts 3, 4, 7 carried by it is in the operative position shown in solid lines in FIG. 1.
- the nozzle 4 and the guide teeth 7 are inserted into the shed 19 through the warp threads 17 in the down position.
- the parts 3, 4, 7 are pivoted counterclockwise in accordance with arrow 21 in FIG. 1, so that the nozzle 4 and the guide teeth 7 reach an ineffective position, not shown, outside the shed 19.
- the reed 3 strikes the weft thread 6 against the stop point 24 of the fabric 25.
- the parts 3, 4, 7 then reach the position shown in solid lines in FIG. 1, in which the following weft thread 6 can be inserted.
- the air jet 28 is thereby largely vortex-free, so that it is able to maintain the direction shown in FIG. 4, which runs obliquely to the weft thread 6, for a particularly long time.
- the direction-oriented load-bearing action with respect to the weft thread 6 can thereby be increased.
- the auxiliary blowing nozzle 4a contains a shaft 4b of oval cross section.
- the sliding surfaces provided by the nozzle 4 to the warp threads 17 can be lengthened, which results in a gentle treatment for the warp threads when retracting and extending.
- angles A1 and A2 can also be of the same size, so that the edge 9 is parallel to the warp thread plane 17.
- edge 9a indicated in dash-dot lines in FIG. slightly curved towards the right end in FIG. 2.
- the roof-shaped end 8 e.g. 3 in the direction of the axis 30 of the riser section 13 in FIG. 3 curved, dashed roof surfaces 8a, 8b or horizontally curved surfaces 8c according to FIG. 8.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Looms (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19800810369 EP0053216B1 (fr) | 1980-11-28 | 1980-11-28 | Buse de soufflage auxiliaire pour métier à tisser à jet d'air |
DE8080810369T DE3067044D1 (en) | 1980-11-28 | 1980-11-28 | Auxiliary nozzle for an air jet loom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19800810369 EP0053216B1 (fr) | 1980-11-28 | 1980-11-28 | Buse de soufflage auxiliaire pour métier à tisser à jet d'air |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0053216A1 true EP0053216A1 (fr) | 1982-06-09 |
EP0053216B1 EP0053216B1 (fr) | 1984-03-14 |
Family
ID=8187466
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19800810369 Expired EP0053216B1 (fr) | 1980-11-28 | 1980-11-28 | Buse de soufflage auxiliaire pour métier à tisser à jet d'air |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0053216B1 (fr) |
DE (1) | DE3067044D1 (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0095167A1 (fr) * | 1982-05-26 | 1983-11-30 | Nissan Motor Co., Ltd. | Dispositif pour insérer les trames d'un métier à tisser à injection |
US4585038A (en) * | 1983-12-09 | 1986-04-29 | Sulzer Brothers Limited | Auxiliary blow nozzle for a pneumatic weaving machine |
US4794958A (en) * | 1986-11-21 | 1989-01-03 | Picanol N.V. | Auxiliary nozzle for air jet loom |
CN102839486A (zh) * | 2012-09-13 | 2012-12-26 | 吴江市隆泰喷织厂 | 喷气织机辅助喷嘴的稳定型定位座 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3424206A (en) * | 1965-09-11 | 1969-01-28 | Elitex Zavody Textilniho | Shuttle and guiding structure therefor |
DE2145256A1 (de) * | 1970-09-18 | 1972-03-23 | Elitex - Zavody Textilniho Strojirenstvi Generalni Rzeditelstvi, Reichenberg (Tschechoslowakei) | Verfahren und Vorrichtung zum Schusseintrag bei schützenlosen Webstühlen |
US3742973A (en) * | 1972-02-08 | 1973-07-03 | Vyzk D Vyvojovy Ustav Z Vseobe | Guiding comb tooth for air jet looms |
US3847187A (en) * | 1971-07-27 | 1974-11-12 | Vyzkummy Vyvojovy Ustav Z Vseo | Weft inserting channel for pneumatic weaving machines |
CH572117A5 (fr) * | 1974-09-11 | 1976-01-30 | Rueti Ag Maschf |
-
1980
- 1980-11-28 DE DE8080810369T patent/DE3067044D1/de not_active Expired
- 1980-11-28 EP EP19800810369 patent/EP0053216B1/fr not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3424206A (en) * | 1965-09-11 | 1969-01-28 | Elitex Zavody Textilniho | Shuttle and guiding structure therefor |
DE2145256A1 (de) * | 1970-09-18 | 1972-03-23 | Elitex - Zavody Textilniho Strojirenstvi Generalni Rzeditelstvi, Reichenberg (Tschechoslowakei) | Verfahren und Vorrichtung zum Schusseintrag bei schützenlosen Webstühlen |
US3847187A (en) * | 1971-07-27 | 1974-11-12 | Vyzkummy Vyvojovy Ustav Z Vseo | Weft inserting channel for pneumatic weaving machines |
US3742973A (en) * | 1972-02-08 | 1973-07-03 | Vyzk D Vyvojovy Ustav Z Vseobe | Guiding comb tooth for air jet looms |
CH572117A5 (fr) * | 1974-09-11 | 1976-01-30 | Rueti Ag Maschf |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0095167A1 (fr) * | 1982-05-26 | 1983-11-30 | Nissan Motor Co., Ltd. | Dispositif pour insérer les trames d'un métier à tisser à injection |
US4596276A (en) * | 1982-05-26 | 1986-06-24 | Nissan Motor Co., Ltd. | Weft picking device of air jet loom |
US4585038A (en) * | 1983-12-09 | 1986-04-29 | Sulzer Brothers Limited | Auxiliary blow nozzle for a pneumatic weaving machine |
US4794958A (en) * | 1986-11-21 | 1989-01-03 | Picanol N.V. | Auxiliary nozzle for air jet loom |
CN102839486A (zh) * | 2012-09-13 | 2012-12-26 | 吴江市隆泰喷织厂 | 喷气织机辅助喷嘴的稳定型定位座 |
Also Published As
Publication number | Publication date |
---|---|
DE3067044D1 (en) | 1984-04-19 |
EP0053216B1 (fr) | 1984-03-14 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 19801203 |
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AK | Designated contracting states |
Designated state(s): BE DE FR IT |
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RBV | Designated contracting states (corrected) |
Designated state(s): BE DE FR IT |
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ITF | It: translation for a ep patent filed |
Owner name: ING. ZINI MARANESI & C. S.R.L. |
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