CN102493104A - Double-pressure-supply main nozzle, and air supply system thereof - Google Patents
Double-pressure-supply main nozzle, and air supply system thereof Download PDFInfo
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- CN102493104A CN102493104A CN2011104200821A CN201110420082A CN102493104A CN 102493104 A CN102493104 A CN 102493104A CN 2011104200821 A CN2011104200821 A CN 2011104200821A CN 201110420082 A CN201110420082 A CN 201110420082A CN 102493104 A CN102493104 A CN 102493104A
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Abstract
The invention discloses a double-pressure-supply main nozzle. The double-pressure-supply main nozzle comprises a main nozzle body; a main nozzle core is arranged in the main nozzle body, and a first channel is reserved between the main nozzle body and the main nozzle core; the main nozzle body is provided with a guide pipe which is communicated with the main nozzle core, and is communicated with the first channel; the main nozzle body is provided with a high-pressure air inlet which is communicated with the first channel; a lead pipe is arranged outside the guide pipe; the lead pipe is connected with the main nozzle body; the main nozzle body is also provided with a low-pressure air inlet which is communicated with the lead pipe through a second channel which is formed in the main nozzle body. Low-speed air flow is sprayed first and then core air flow is sprayed, so the action time and distance of drafting weft yarns by the core air flow can be increased due to the joint action, and air supply pressure required by generating the core air flow can be reduced.
Description
Technical field
The invention belongs to the air-jet loom field, the concrete pneumatic picking system that relates to relates to the main burner and the air supply system thereof of a kind of pair of voltage supply in particular.
Background technology
The used in jet loom air-flow is realized wefting insertion, one minute wefting insertion of air-jet loom 800-1000 time, and each wefting insertion is exactly that weft yarn flies through shed open once, and the weft yarn flying speed is above 100 meter per seconds.
Get into after 2000, the main development of high speed jet wefting insertion is embodied in the acceleration of main burner to weft yarn, and the weft yarn flying speed is high, and loom just can reach height and go into the latitude rate, could coordinate to weave the action of each several part, reduces the air consumption of loom.Air-jet loom go into latitude rate 1600-2000 rice/minute, the high speed jet wefting insertion is that height is gone into latitude rate prerequisite.High-speed air-jet looms must the good main burner of service property (quality).
is present, and the actual motion speed of existing air-jet loom reaches 750-900 Zhuan ∕ branch, and the weft yarn flying speed reaches the 100-110 meter per second, goes into the latitude rate and reaches 2000 meters/minute.And the critical component that quickens weft yarn is exactly a main burner.The quality leading indicator of weighing main burner is that how high the speed of air-flow in the main burner guide wire can reach, and the speed of main injection air-flow is the key that reaches the weft yarn high-speed flight.
Referring to shown in Figure 1, main burner utilizes the poor of air feed pressure and ambient air pressure, produces high speed main injection air-flow, is in critical condition in the smallest cross-sectional (throat) of collapsible tube, owing to receive the restriction of velocity of sound, air velocity remains on about 1M (Mach).Because sound barrier, the velocity of sound air-flow falls rapidly in very short distance, and high velocity air diffuses into guide wire then, and air-flow will keep 200-260 meter per second speed in guide wire.The main burner of used in jet loom belongs to the high-pressure low-flow nozzle; The diameter of nozzle is about Φ 3-4mm; The weft yarn accelerator is mainly accomplished in the guide wire of main burner, and air-flow is in case penetrate from spout, and air velocity is with dropping rapidly from the increase of jet expansion distance.Therefore, action time and the distance that how to prolong core air-flow high-speed layer tractive weft yarn is to be badly in need of the problem overcome.
Summary of the invention
For overcoming deficiency of the prior art, the object of the present invention is to provide a kind of action time of core air-flow high-speed layer and two voltage supply main burners of distance of prolonging.
Another object of the present invention is to provide the air supply system of a kind of pair of voltage supply main burner.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention realizes through following technical scheme:
A kind of pair of voltage supply main burner comprises a main burner body, and a main burner core is set in the said main burner body; And leave first passage each other, also be provided with a guide wire on the said main burner body, said guide wire and said main burner core UNICOM; And with said first passage UNICOM, also offer a high pressure admission mouth on the said main burner body, said high pressure admission mouth and said first passage UNICOM; Said guide wire is outside equipped with a first conduit; Said first conduit and said main burner body interconnect, and also are provided with on the said main burner body by a low-pressure admission mouth, and said low-pressure admission mouth is through the said first conduit of second channel UNICOM that is arranged in the said main burner body.
The air supply system of a kind of pair of voltage supply main burner comprises a main burner body, and a main burner core is set in the said main burner body; And leave first passage each other; Also be provided with a guide wire on the said main burner body, said guide wire and said main burner core UNICOM, and with said first passage UNICOM; Also offer a high pressure admission mouth on the said main burner body; Said high pressure admission mouth and said first passage UNICOM, said guide wire is outside equipped with a first conduit, and said first conduit and said main burner body interconnect; Also be provided with on the said main burner body by a low-pressure admission mouth, said low-pressure admission mouth is through the said first conduit of second channel UNICOM that is arranged in the said main burner body; Said high pressure admission mouth is connected with the high pressure draught air supply system, and said low-pressure admission mouth is connected with the low-pressure air current air supply system; Said high pressure draught air supply system comprises first electromagnetic valve; Said first electromagnetic valve connects a high pressure master gas bag; Said high pressure master gas bag connects one first control valve; Said low-pressure air current air supply system comprises second electromagnetic valve, and said second electromagnetic valve connects a low pressure master gas bag, and said low pressure master's gas bag connects one second control valve; Said first control valve is connected a source of the gas with second control valve, and described first electromagnetic valve is connected a control panel with second electromagnetic valve, controls the time that said first electromagnetic valve and second electromagnetic valve are successively opened by said control panel.
Further, the service life of said low-pressure air current air supply system is early than 5 °-8 ° of said high pressure draught air supply systems; The service life of said low-pressure air current air supply system continues 50 °-60 °.
The present invention has following beneficial effect:
The present invention utilizes two strands of air-flows, and low speed flow sprays earlier, and the core air-flow sprays late, and synergy can prolong the action time and the distance of core air-flow, can reduce the supply gas pressure that produces the core air-flow.Air velocity increases with the increase of supply gas pressure; Guide wire export department sectional area is little can to produce airflow obstruction; A thick weft yarn requires to increase guide wire portion sectional area, increases supply gas pressure and air demand, and of the present invention pair of voltage supply main burner provides two strands of air-flows; Greater than the duration of 100 meter per second speed, can reduce air feed air pressure and air consumption in the assurance core air-flow central area.
Above-mentioned explanation only is the general introduction of technical scheme of the present invention, understands technological means of the present invention in order can more to know, and can implement according to the content of specification, below with preferred embodiment of the present invention and conjunction with figs. detailed description.The specific embodiment of the present invention is provided by following examples and accompanying drawing thereof in detail.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of main burner of the prior art.
Fig. 2 is the structural representation of of the present invention pair of voltage supply main burner.
Fig. 3 is the glide path figure of air-flow in the of the present invention pair of voltage supply main burner pipe.
Fig. 4 is the structural representation of an embodiment of first conduit of the present invention.
Fig. 5 is the structural representation of another embodiment of first conduit of the present invention.
Fig. 6 is the structure principle chart of the air supply system of of the present invention pair of voltage supply main burner.
Fig. 7 is the curve map that falls of main jet air-flow.
Label declaration among the figure: 1, main burner body, 101, the low-pressure admission mouth, 102, the high pressure admission mouth, 103, first passage, 104, second channel; 2, main burner core, 3, guide wire, 4, first conduit, 5, first electromagnetic valve; 6, high pressure master gas bag, 7, second electromagnetic valve, 8, low pressure master's gas bag, 9, first control valve; 10, second control valve, 11, source of the gas, 12, control panel.
The specific embodiment
Below with reference to accompanying drawing and combine embodiment, specify the present invention.
Embodiment 1:
Referring to shown in Figure 2, a kind of pair of voltage supply main burner comprises a main burner body 1; One main burner core 2 is set in the said main burner body 1, and leaves first passage 103 each other, also be provided with a guide wire 3 on the said main burner body 1; Said guide wire 3 and said main burner core 2 UNICOMs; And with said first passage 103 UNICOMs, also offer a high pressure admission mouth 102 on the said main burner body 1, said high pressure admission mouth 102 and said first passage 103 UNICOMs; Said guide wire 3 is outside equipped with a first conduit 4; Said first conduit 4 interconnects with said main burner body 1, also is provided with on the said main burner body 1 by a low-pressure admission mouth 101, and said low-pressure admission mouth 101 is through the said first conduit 4 of second channel 104 UNICOMs that is arranged in the said main burner body 1.
Preferably, referring to shown in Figure 4, said first conduit 4 is a cylindrical-shaped structure.
Preferably, referring to shown in Figure 5, said first conduit 4 is a cone-shaped structure.
Embodiment 2:
Referring to shown in Figure 6, the air supply system of a kind of pair of voltage supply main burner comprises a main burner body 1; One main burner core 2 is set in the said main burner body 1, and leaves first passage 103 each other, also be provided with a guide wire 3 on the said main burner body 1; Said guide wire 3 and said main burner core 2 UNICOMs; And with said first passage 103 UNICOMs, also offer a high pressure admission mouth 102 on the said main burner body 1, said high pressure admission mouth 102 and said first passage 103 UNICOMs; Said guide wire 3 is outside equipped with a first conduit 4; Said first conduit 4 interconnects with said main burner body 1, also is provided with on the said main burner body 1 by a low-pressure admission mouth 101, and said low-pressure admission mouth 101 is through the said first conduit 4 of second channel 104 UNICOMs that is arranged in the said main burner body 1; Said high pressure admission mouth 102 is connected with the high pressure draught air supply system, and said low-pressure admission mouth 101 is connected with the low-pressure air current air supply system; Said high pressure draught air supply system comprises first electromagnetic valve 5; Said first electromagnetic valve 5 connects a high pressure master gas bag 6; Said high pressure master gas bag 6 connects one first control valve 9; Said low-pressure air current air supply system comprises second electromagnetic valve 7, and said second electromagnetic valve 7 connects a low pressure master gas bag 8, and said low pressure master's gas bag 8 connects one second control valve 10; Said first control valve 9 is connected a source of the gas 11 with second control valve 10, and described first electromagnetic valve 5 is connected a control panel 12 with second electromagnetic valve 7, the time of being opened by said first electromagnetic valves 5 of said control panel 12 controls and second electromagnetic valve, 7 priorities.
The course of work and the operation principle of present embodiment are following:
Referring to shown in Figure 3, the glide path of air-flow in the two voltage supply main burner pipes of expression, the first passage 103 of high pressure draught between main burner core 2 and main burner body 1 flows into guide wire 3, produces the core air-flow.Utilize the poor of air feed pressure and ambient air pressure, produce high speed main injection air-flow (realizing among the figure that arrow is said), the smallest cross-sectional (throat) at collapsible tube is in critical condition so, receives the restriction of velocity of sound, and air velocity remains on about 1M (Mach).The velocity of sound air-flow falls rapidly in very short distance, and high velocity air diffuses into guide wire then, the injection weft yarn, and air-flow will keep 200-260 meter per second speed in guide wire, and the high velocity air band weft yarn and is flown to outlet.
The main burner of used in jet loom belongs to the high-pressure low-flow nozzle; The diameter of nozzle is about Φ 3-4mm; The weft yarn accelerator is mainly accomplished in the guide wire 3 of main burner, and air-flow is in case penetrate from spout, and air velocity is with dropping rapidly from the increase of jet expansion distance.As shown in Figure 7, the core air-flow is when jet expansion is above apart from 40mm, and the air velocity landed is below 100 meter per seconds.Therefore with the protection air-flow with the falling of the core air velocity that slows down, low-pressure air current is through main burner body (among the figure shown in the dotted arrow), shrinks the back through second channel 104 and gets into the guide and manage 4, produces one low speed and protects air-flow.
Core gas flows out spout, at first breaks through the parcel of low speed flow, diffuses into atmosphere again, and low speed flow provides a protective layer, and the speed of core air-flow descends and is able to slow down, and especially weft yarn is a low count yarn, can reduce the air demand that produces the core air-flow.Low speed flow has been arranged, guaranteed being connected of auxilliary gaseous blast in core air-flow and the reed groove better.
The injecting time of low-pressure air current and high pressure draught is inconsistent, and the low-pressure air current service life is early than high pressure draught, early 5o-8o.Low speed flow sprays earlier, and the core air-flow sprays late, prolongs the action time and the distance of core air-flow.Low-pressure air current air feed duration 50o-60o is shorter than the high pressure draught air feed duration.It is 360 o that the loom bent axle turns around, and crank angle control is pressed in the control of each action of loom.
The above is merely preferred case study on implementation of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. two voltage supply main burner; Comprise a main burner body (1); One main burner core (2) is set in the said main burner body (1), and leaves first passage (103) each other, also be provided with a guide wire (3) on the said main burner body (1); Said guide wire (3) and said main burner core (2) UNICOM; And with said first passage (103) UNICOM, also offer a high pressure admission mouth (102) on the said main burner body (1), said high pressure admission mouth (102) and said first passage (103) UNICOM; It is characterized in that: said guide wire (3) is outside equipped with a first conduit (4); Said first conduit (4) interconnects with said main burner body (1), also is provided with on the said main burner body (1) by a low-pressure admission mouth (101), and said low-pressure admission mouth (101) is arranged on interior second channel (104) the said first conduit of UNICOM (4) of said main burner body (1) through one.
2. according to claim 1 pair of voltage supply main burner is characterized in that: said first conduit (4) is a cylindrical-shaped structure.
3. according to claim 1 pair of voltage supply main burner is characterized in that: said first conduit (4) is a cone-shaped structure.
4. one kind like claim 1 or 2 or the air supply system of 3 described pairs of voltage supply main burners, and it is characterized in that: said high pressure admission mouth (102) is connected with the high pressure draught air supply system, and said low-pressure admission mouth (101) is connected with the low-pressure air current air supply system; Said high pressure draught air supply system comprises first electromagnetic valve (5); Said first electromagnetic valve (5) connects a high pressure master gas bag (6); Said high pressure master gas bag (6) connects one first control valve (9); Said low-pressure air current air supply system comprises second electromagnetic valve (7), and said second electromagnetic valve (7) connects a low pressure master gas bag (8), and said low pressure master's gas bag (8) connects one second control valve (10); Said first control valve (9) is connected a source of the gas (11) with second control valve (10); And described first electromagnetic valve (5) is connected a control panel (12) with second electromagnetic valve (7), the time of being opened by said control panel (12) control said first electromagnetic valve (5) and second electromagnetic valve (7) priority.
5. the air supply system of according to claim 4 pair of voltage supply main burner is characterized in that: the service life of said low-pressure air current air supply system is early than 5 °-8 ° of said high pressure draught air supply systems; The service life of said low-pressure air current air supply system continues 50 °-60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011104200821A CN102493104A (en) | 2011-12-15 | 2011-12-15 | Double-pressure-supply main nozzle, and air supply system thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011104200821A CN102493104A (en) | 2011-12-15 | 2011-12-15 | Double-pressure-supply main nozzle, and air supply system thereof |
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| CN102493104A true CN102493104A (en) | 2012-06-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103603125A (en) * | 2013-12-10 | 2014-02-26 | 苏州大学 | Main nozzle structure of air jet loom and method for accelerating air flow inside main nozzle |
| CN108221138A (en) * | 2018-04-03 | 2018-06-29 | 青岛天集团红旗纺织机械有限公司 | A kind of air-jet loom pair spray automated conversion system and air-jet loom |
| CN110528155A (en) * | 2019-08-28 | 2019-12-03 | 常州捷特纺织器材有限公司 | Auxiliary nozzle used in jet loom airflow detecting device |
| CN114318632A (en) * | 2020-10-09 | 2022-04-12 | 株式会社丰田自动织机 | Weft insertion device of air jet loom |
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| CN101628253A (en) * | 2008-07-16 | 2010-01-20 | 陈海焱 | Annular composite nozzle of large-flow jet mill |
| CN102031620A (en) * | 2009-09-23 | 2011-04-27 | 株式会社丰田自动织机 | Weft insertion device of air-jet loom |
| CN102191352A (en) * | 2010-03-12 | 2011-09-21 | 苏州宝联重工股份有限公司 | Coherent jet lance |
| CN202415851U (en) * | 2011-12-15 | 2012-09-05 | 江苏万工科技集团有限公司 | Double pressure supply main spray nozzle and gas supply system thereof |
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| US4369817A (en) * | 1978-01-06 | 1983-01-25 | Nissan Motor Company Limited | Weft picking device of air jet type weaving loom |
| JPH0214386U (en) * | 1988-07-14 | 1990-01-29 | ||
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| CN102191352A (en) * | 2010-03-12 | 2011-09-21 | 苏州宝联重工股份有限公司 | Coherent jet lance |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103603125A (en) * | 2013-12-10 | 2014-02-26 | 苏州大学 | Main nozzle structure of air jet loom and method for accelerating air flow inside main nozzle |
| CN103603125B (en) * | 2013-12-10 | 2015-10-28 | 苏州大学 | Air-flow accelerated method in a kind of main nozzle structure of air-jet loom and main burner |
| CN108221138A (en) * | 2018-04-03 | 2018-06-29 | 青岛天集团红旗纺织机械有限公司 | A kind of air-jet loom pair spray automated conversion system and air-jet loom |
| CN110528155A (en) * | 2019-08-28 | 2019-12-03 | 常州捷特纺织器材有限公司 | Auxiliary nozzle used in jet loom airflow detecting device |
| CN110528155B (en) * | 2019-08-28 | 2024-05-31 | 常州捷特纺织器材有限公司 | Auxiliary nozzle air flow detection device for air jet loom |
| CN114318632A (en) * | 2020-10-09 | 2022-04-12 | 株式会社丰田自动织机 | Weft insertion device of air jet loom |
| EP3981899B1 (en) | 2020-10-09 | 2023-08-02 | Kabushiki Kaisha Toyota Jidoshokki | Weft insertion device of air jet loom |
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Application publication date: 20120613 |