CN2869055Y - Weft insertion nozzle of air jet loom - Google Patents
Weft insertion nozzle of air jet loom Download PDFInfo
- Publication number
- CN2869055Y CN2869055Y CN 200520140559 CN200520140559U CN2869055Y CN 2869055 Y CN2869055 Y CN 2869055Y CN 200520140559 CN200520140559 CN 200520140559 CN 200520140559 U CN200520140559 U CN 200520140559U CN 2869055 Y CN2869055 Y CN 2869055Y
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- CN
- China
- Prior art keywords
- nozzle
- nozzle core
- core
- turnout
- 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 - Fee Related
Links
- 238000003780 insertion Methods 0.000 title claims abstract description 20
- 230000037431 insertion Effects 0.000 title claims abstract description 20
- 239000011148 porous material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Looms (AREA)
Abstract
A weft insertion nozzle of an air jet loom comprises a nozzle body, a first nozzle core and a second nozzle core, wherein the first nozzle core and the second nozzle core are arranged in an inner cavity of the nozzle body, and a central pore passage is formed in the first nozzle core. An inlet channel is formed between the nozzle body and the first nozzle core, a first branch channel is formed between the first nozzle core and the second nozzle core, and a weft insertion channel is formed on the second nozzle core; a second branch passage is formed between the second nozzle core and the throat part, and the inlet passage is communicated with the yarn guide port through the second branch passage. The weft yarn in the nozzle can be accelerated twice under the action of high-speed airflow twice, so that the flying speed of the weft yarn can be increased, and the weft yarn can smoothly fly over a loom shed.
Description
Technical field
The utility model relates to a kind of nozzle, is applied on the shuttleless loom usually.
Background technology
In the prior art, the Weft insertion nozzle of air-jet loom comprises nozzle body and is arranged at nozzle core in the inner chamber of nozzle body, constitute pressurized airflow path between the inwall of nozzle body and the outer wall of nozzle core by the main gas storage bag air feed of air-jet loom, the centerline of nozzle core has the normal airflow passage, pressurized airflow path and normal airflow passage all towards with yarn-guide tube that nozzle links to each other in, produce the air-flow of high velocity jet by the difference of air feed pressure and atmospheric pressure, thereby make that weft yarn quickens to enter in the yarn-guide tube, but when practical application, the speed that this method that only depends on one-level to quicken makes weft yarn produce at last is still smaller, easily cause weft yarn not reach the flying speed requirement, make weft yarn can't finish the action that leaps the loom shed open.
Summary of the invention
The utility model purpose provides a kind of Weft insertion nozzle of air-jet loom, and it can make weft yarn produce higher flying speed.
For achieving the above object, the technical solution adopted in the utility model is: a kind of Weft insertion nozzle of air-jet loom, it comprises nozzle body, be arranged at first nozzle core and second nozzle core in the inner chamber of described nozzle body, and the centerline of described first nozzle core has central duct.Have air flow inlet on the described nozzle body, constitute access road between the outer wall of the inwall of described nozzle body and first nozzle core, constitute first turnout between the left side of the right side of described first nozzle core and second nozzle core, the centerline of described second nozzle core has the wefting insertion passage that is connected with central duct, the throat that described nozzle body has one section sectional area to diminish, described second nozzle core is arranged in the inner chamber of throat, the right part of described throat has yarn guiding port, described air flow inlet, access road, first turnout, the wefting insertion passage, yarn guiding port is connected successively; Constitute second turnout between the outer wall of described second nozzle core and the inwall of throat, described access road is connected with yarn guiding port through second turnout.
The sectional area on described second turnout is less than the sectional area of access road.
Because technique scheme utilization, the utility model compared with prior art has following advantage: when practical application, central duct communicates with outside air, the main gas storage bag of air flow inlet on the nozzle body and air-jet loom joins, compressed air stream is provided for the inlet passage by main gas storage bag, when first turnout enters the wefting insertion passage, promptly utilize the difference of air feed pressure and atmospheric pressure to produce high-speed jet-stream wind at compressed air stream, make airflow injection and carry weft yarn; Second turnout is through the throat of nozzle, and the throat section is long-pending less, so the air velocity of leading to the guide oral area by second turnout reaches maximum, can make the weft yarn at yarn guiding port place reach flying speed.Because weft yarn obtains the effect of high velocity air for twice and twice acceleration in a nozzle, thus the flying speed of weft yarn can be improved, thus make weft yarn successfully finish the action that leaps the loom shed open.
Description of drawings
Accompanying drawing 1 is a main cutaway view of the present utility model;
Accompanying drawing 2 be throat of the present utility model with and the main cutaway view Amplified image of internal structure;
Wherein: 1, air flow inlet; 2, access road; 3, first turnout; 4, second turnout; 5, spray yarn mouth; 6, wefting insertion passage; 7, throat; 8, nozzle body; 9, first nozzle core; 10, second nozzle core; 11, central duct;
The specific embodiment
Shown in accompanying drawing 1-accompanying drawing 2, a kind of Weft insertion nozzle of air-jet loom, it comprises nozzle body 8, be arranged at first nozzle core 9 and second nozzle core 10 in the inner chamber of described nozzle body 8, the centerline of described first nozzle core 9 has central duct 11, have air flow inlet 1 on the described nozzle body 8, constitute access road 2 between the outer wall of the inwall of described nozzle body 8 and first nozzle core 9, constitute first turnout 3 between the end face of the left side of the right side of described first nozzle core 9 (right side shown in the accompanying drawing 1) end face and second nozzle core 10 (accompanying drawing a kind shown in left side), the centerline of described second nozzle core 10 has the wefting insertion passage 6 that is connected with central duct 11, the throat 7 that described nozzle body 8 has one section sectional area to diminish, described second nozzle core 10 is arranged in the inner chamber of throat 7, end, the right side of described throat 7 (right side shown in the accompanying drawing 1) has yarn guiding port 5, described air flow inlet 1, access road 2, first turnout 3, wefting insertion passage 6, yarn guiding port 5 is connected successively; Constitute second turnout 4 between the inwall of the outer wall of described second nozzle core 10 and throat 7, the sectional area on described second turnout 4 is less than the sectional area of access road 2, and described access road 2 is connected with yarn guiding port 5 through second turnout 4.
The air flow inlet 1 of nozzle body 8 links to each other with the main gas storage bag of air-jet loom, Compressed Gas is provided for inlet passage 2 by main gas storage bag, Compressed Gas is in first turnout 3 and second turnout, 4 punishment troubles, part Compressed Gas enters in the wefting insertion passage 6 after through first turnout 3, the gas that is flowed into by central duct 11 is and outside air, produce the air-flow of high velocity jet by the difference of air feed pressure and atmospheric pressure, thereby make the weft yarn that is still in the wefting insertion passage 6 be able to quicken for the first time, another compressed air flows to yarn guiding port 5 through second turnout 4 again, because the sectional area on second turnout 4 diminishes suddenly, so compressed air is expanded, air velocity increases, so that the weft yarn at yarn guiding port 5 places quickens for the second time and have higher flying speed, thereby make weft yarn fly to the shed open of loom at a high speed.
Claims (2)
1, a kind of Weft insertion nozzle of air-jet loom, it is characterized in that: it comprises nozzle body (8), be arranged at first nozzle core (9) and second nozzle core (10) in the inner chamber of described nozzle body (8), the centerline of described first nozzle core (9) has central duct (11), have air flow inlet (1) on the described nozzle body (8), constitute access road (2) between the outer wall of the inwall of described nozzle body (8) and first nozzle core (9), constitute first turnout (3) between the left side of the right side of described first nozzle core (9) and second nozzle core (10), the centerline of described second nozzle core (10) has the wefting insertion passage (6) that is connected with central duct (11), the throat (7) that described nozzle body (8) has one section sectional area to diminish, described second nozzle core (10) is arranged in the inner chamber of throat (7), the right part of described throat (7) has yarn guiding port (5), described air flow inlet (1), access road (2), first turnout (3), wefting insertion passage (6), yarn guiding port (5) is connected successively; Constitute second turnout (4) between the inwall of the outer wall of described second nozzle core (10) and throat (7), described access road (2) is connected with yarn guiding port (5) through second turnout (4).
2, the Weft insertion nozzle of air-jet loom according to claim 1 is characterized in that: the sectional area on described second turnout (4) is less than the sectional area of access road (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140559 CN2869055Y (en) | 2005-12-31 | 2005-12-31 | Weft insertion nozzle of air jet loom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140559 CN2869055Y (en) | 2005-12-31 | 2005-12-31 | Weft insertion nozzle of air jet loom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2869055Y true CN2869055Y (en) | 2007-02-14 |
Family
ID=37723989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520140559 Expired - Fee Related CN2869055Y (en) | 2005-12-31 | 2005-12-31 | Weft insertion nozzle of air jet loom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2869055Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677371A (en) * | 2012-06-12 | 2012-09-19 | 江苏万工科技集团有限公司 | Main nozzle for secondary acceleration of airflow and air supply system of main nozzle |
| CN102995235A (en) * | 2012-11-26 | 2013-03-27 | 吴江市金真缝纫机有限公司 | Adjustable-pressure nozzle for jet loom |
| CN103334206A (en) * | 2013-06-13 | 2013-10-02 | 苏州市丹纺纺织研发有限公司 | Low diffusion air jet loom |
| CN103820927A (en) * | 2014-03-13 | 2014-05-28 | 湖州润源丝织有限公司 | Water jet loom kinetic energy compensating structure |
| CN111364152A (en) * | 2020-04-28 | 2020-07-03 | 山东日发纺织机械有限公司 | Air jet loom and weft yarn drafting device thereof |
| CN113957592A (en) * | 2021-10-28 | 2022-01-21 | 吴江市兴业纺织有限公司 | Combined weft yarn spray pipe and manufacturing method thereof |
-
2005
- 2005-12-31 CN CN 200520140559 patent/CN2869055Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102677371A (en) * | 2012-06-12 | 2012-09-19 | 江苏万工科技集团有限公司 | Main nozzle for secondary acceleration of airflow and air supply system of main nozzle |
| CN102995235A (en) * | 2012-11-26 | 2013-03-27 | 吴江市金真缝纫机有限公司 | Adjustable-pressure nozzle for jet loom |
| CN103334206A (en) * | 2013-06-13 | 2013-10-02 | 苏州市丹纺纺织研发有限公司 | Low diffusion air jet loom |
| CN103820927A (en) * | 2014-03-13 | 2014-05-28 | 湖州润源丝织有限公司 | Water jet loom kinetic energy compensating structure |
| CN103820927B (en) * | 2014-03-13 | 2015-11-04 | 湖州润源丝织有限公司 | Water jet looms kinetic energy collocation structure |
| CN111364152A (en) * | 2020-04-28 | 2020-07-03 | 山东日发纺织机械有限公司 | Air jet loom and weft yarn drafting device thereof |
| CN113957592A (en) * | 2021-10-28 | 2022-01-21 | 吴江市兴业纺织有限公司 | Combined weft yarn spray pipe and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |