CN105728251A - High-speed and high-frequency small-flow spray gun - Google Patents
High-speed and high-frequency small-flow spray gun Download PDFInfo
- Publication number
- CN105728251A CN105728251A CN201610244236.9A CN201610244236A CN105728251A CN 105728251 A CN105728251 A CN 105728251A CN 201610244236 A CN201610244236 A CN 201610244236A CN 105728251 A CN105728251 A CN 105728251A
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- CN
- China
- Prior art keywords
- spray gun
- spool
- high frequency
- low discharge
- electric magnet
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
- B05B17/04—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups operating with special methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
- B05B1/32—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages in which a valve member forms part of the outlet opening
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- Nozzles (AREA)
Abstract
The invention discloses a high-speed and high-frequency small-flow spray gun. The high-speed and high-frequency small-flow spray gun comprises a high-frequency control device, a casing, an electromagnet, a valve core and a spray nozzle, wherein the high-frequency control device is connected with the electromagnet; the casing is provided with a hollow part, a spray port and a channel; the spray port, the channel and the hollow part of the casing mutually communicate; both the electromagnet and the valve core are arranged in the casing; the spray nozzle is arranged in the spray port; the high-frequency control device controls the electromagnet to generate a magnetic field by adopting a pulse width modulation technology; the electromagnet controls the valve core to work by using the magnetic field; the valve core controls the spray nozzle to be opened and closed according to working conditions of the valve core; the channel is used for draining liquid; and the flow of the spray nozzle is controlled by controlling the high-frequency control device. According to the high-speed and high-frequency small-flow spray gun disclosed by the invention, liquid drops with extremely-small particles can be sprayed, and the tailing phenomenon is avoided, so that wastes and the degree of polluting the environment are reduced.
Description
Technical field
The present invention relates to lance technology field, be specifically related to a kind of high-speed high frequency low discharge spray gun.
Background technology
The drop weight of existing spray gun would generally more than 0.5mg, and this drop is generally bigger.But do not reach extra small flow (drop weight is less than 0.5mg) and be typically easy to appearance hangover.Such as wave-soldering needs the size that the drop producing fine droplets and extra small flow is beaten accurately in the region to spray and drop adjustable in the process add scaling powder, but typically require more scaling powder in the prior art and realize the requirement of spray scaling powder, the problem that so can bring waste and contaminated environment；For another example existing papermaking perfuming adopts two-fluid spray nozzle (compression gas+liquid) perfuming of spraying, because in spray process, perfume is atomized easy loss in atmosphere and causes environmental pollution and waste.
Summary of the invention
For the deficiencies in the prior art, it is an object of the invention to provide the high-speed high frequency low discharge spray gun that a kind of drop weight rational in infrastructure, ejection is little.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of high-speed high frequency low discharge spray gun, including high audio-frequency control device, housing, electric magnet, spool and nozzle；Described high audio-frequency control device is connected with electric magnet；Described housing is provided with hollow space, spout and passage；The hollow bulb three of described spout, passage and housing is interconnected；Described electric magnet and spool are mounted in housing；Described nozzle is installed in spout；Described high audio-frequency control device adopts pulse width modulating technology to control electric magnet and produces magnetic field；Described electric magnet utilizes described magnetic field to control spool work；Described spool controls opening and closing of nozzle according to its working condition；Described passage is used for draining fluids；The flow of spray gun is controlled by controlling high audio-frequency control device.
Preferably, described nozzle offers spray orifice；The aperture 0.07mm-0.15mm of this spray orifice.
Preferably, described spool includes insert body, locating part and return unit；Described locating part offers through hole；Described return unit is sheathed on insert body；This return unit and insert body are all interspersed in described through hole；Described insert body moves under the External Force Acting of predetermined direction in through hole；Described return unit is for moving into horizontal reset for insert body.
Preferably, described insert body includes magnet, spool mandrel and stopper；Described spool mandrel is interspersed in described through hole；Described return unit is sheathed on spool mandrel；Described magnet be installed on spool mandrel on the end of one end, described electric magnet direction, described stopper be installed on spool mandrel on the end of one end, described spout direction.
Preferably, described locating part is provided with limited block；Described limited block is fixed on the hole wall of through hole, and is positioned at through hole；Described return unit and described limited block offset.
Preferably, it is shown that stopper is that rubber is made.
Preferably, described housing includes the upper cover, the first main body, the second main body and the lower cover that are sequentially connected with along housing axis；Cover on described and offer the first perforation and the second perforation；Described first perforation is for coordinating with high audio-frequency control device；Described second perforation is through with described passage.
Preferably, described first main body offers the first accommodation chamber and the first subchannel；Described electric magnet is installed on the first accommodation intracavity；Described second main body offers the second accommodation chamber and the second subchannel；Described spool is installed on the second accommodation intracavity；Described first subchannel and the second subchannel are formed through described pipeline；Described second main body is provided with magnetic conductor.
Preferably, cover under described and offer liquid chambers and described spout；This liquid chambers, pipeline and spout are all through.
Preferably, described housing also includes inlay；Described inlay be fixed on described under cover, this inlay and nozzle are affixed.
Preferably, described high audio-frequency control device includes high frequency controller, holding wire and keeper；Described keeper is fixed on housing；The pulse signal transmission that described holding wire is used for producing high frequency controller is to electric magnet, and described electric magnet produces magnetic field when receiving described pulse signal；Described keeper is for positioning for holding wire.
Preferably, described nozzle includes sapphire；Described sapphire is fixed on nozzle exit area place, and this sapphire offers described spray orifice；The aperture of this spray orifice is 0.1mm.
Beneficial effects of the present invention:
Compared with prior art, the high-speed high frequency low discharge spray gun of the present invention adopts pulse width modulating technology to control electric magnet generation magnetic field by high audio-frequency control device can realize controlling spool work, spray amount is controlled (such as by impulse wave width, regulate the pulse period: i.e. " work times per minute " and dutycycle: i.e. " the injection accounting of every task ", work per minute time is more many and more little the sprayed drop amount of dutycycle is more few, otherwise drop amount is more many.Can effectively control the weight that every dropping liquid of nano sized particles drips can be that 0.01mg ~ 0.1mg sprays from nozzle, and described electric magnet is to utilize described magnetic field to control spool work nozzle is opened and closedown, thus avoiding the occurrence of the phenomenon of hangover.
Can spray the drop of nano sized particles to better realize nozzle, the spray orifice internal diameter of described nozzle selects 0.07mm-0.15mm.
Accompanying drawing explanation
Fig. 1 is a kind of high-speed high frequency low discharge spray gun internal structure schematic diagram in embodiments of the invention；
Fig. 2 is the A portion enlarged drawing of Fig. 1.
In figure: 1, high audio-frequency control device；11, high frequency controller；12, holding wire；13, keeper；2, housing；20, hollow space；21, spout；22, passage；23, upper cover；231, the first perforation；232, the second perforation；24, the first main body；241, first holds chamber；242, the first subchannel；25, the second main body；251, second holds chamber；252, the second subchannel；253, magnetic conductor；26, lower cover；261, liquid chambers；27, inlay；28, set screw；3, electric magnet；31, fixing plate；32, magnet body；33, locating dowel；4, spool；41, insert body；411, magnet；412, spool mandrel；413, stopper；42, locating part；420, through hole；421, limited block；43, return unit；5, nozzle；51, sapphire.
Detailed description of the invention
Below, in conjunction with accompanying drawing and detailed description of the invention, the present invention is described further:
With reference to Fig. 1 and Fig. 2, a kind of high-speed high frequency low discharge spray gun described in the present embodiment, including high audio-frequency control device 1, housing 2, electric magnet 3, spool 4 and nozzle 5.Described high audio-frequency control device 1 is connected with electric magnet 3.Described housing 2 is provided with hollow space 20, spout 21 and passage 22.The hollow space 20 of described housing 2, spout 21 and passage 22 three are interconnected.Described electric magnet 3 and spool 4 are mounted in housing；Specifically it is installed on hollow space 20 place of housing 2.Described nozzle 5 is installed in spout 21.Described high audio-frequency control device 1 adopts pulse width modulating technology (PWM, PulseWidthModulation) to control electric magnet 3 and produces magnetic field.Described electric magnet 3 utilizes described magnetic field to control spool 4 and works；Described spool 4 controls opening and closing of nozzle 5 according to its working condition；Described passage 22 is for draining fluids.The flow of spray gun is controlled by controlling high audio-frequency control device 1.Spool 4 can be held when described electric magnet 3 produces magnetic field so that spool 4 moves towards the direction opening nozzle 5, and realize opening nozzle 5, now the liquid being drained to by passage 22 in housing 2 can be sprayed from the nozzle 5 of spout 21.In the present embodiment pulse width modulating technology can so that spool 4 control nozzle open with close frequency reach as high as about 20000 times per minute, and by regulating the pulse period: i.e. " work times per minute " and dutycycle: namely " the injection accounting of every task " realizes and control the emitted dose of each drop, so that the drop weight of nozzle 5 ejection can control to minimum (weight that every dropping liquid drips can be 0.01mg ~ 0.1mg) and not have conditions of streaking.
Described high audio-frequency control device 1 includes high frequency controller 11, holding wire 12 and keeper 13.Described keeper 13 is fixed on housing 2.The pulse signal transmission that described holding wire 12 is used for producing high frequency controller is to electric magnet 3, and described electric magnet 3 produces magnetic field when receiving described pulse signal.Described keeper 13 is for positioning for holding wire 12, it is prevented that holding wire 12 arbitrarily moves and causes the generation of the problems such as loose contact.Described keeper 13 inner hollow, one end of described holding wire 12 is connected with high frequency controller 11 with described, and the other end is connected with electric magnet 3 after the inside of keeper 13；When this high frequency controller 11 produces pulse signal, can passing through holding wire 12 by pulse signal transmission to electric magnet 3, electric magnet 3 produces magnetic field because of obtaining electric.
Described housing 2 includes upper cover the 23, first main body the 24, second main body 25 and the lower cover 26 that are sequentially connected with along housing axis.Described housing 2 is connected removably by four parts, it is possible to make when installing housing 2 inner body more convenient, and also install more accurate, be also convenient for safeguarding the part within housing 2 simultaneously.
Described upper cover 23 is offered the first perforation 231 and the second perforation 232.Described first perforation 231 is for coordinating with high audio-frequency control device 1；Concrete, described keeper 13 is fixed on this first perforation 231 places, and described holding wire 12 is connected with electric magnet 3 through keeper 13 with after the first perforation 231.Described second perforation 232 is through with described passage 22；This concrete second perforation 232 can be the entrance of pipeline 22.These the second perforation 232 place's pipe laying joints 233, for instance this pipe joint 233 can be used for the conduit of external liquid pump.
Described first main body 24 offers the first accommodation chamber 241 and the first subchannel 242.Described electric magnet 3 is installed in the first accommodation chamber 241.Described second main body 25 offers the second accommodation chamber 251 and the second subchannel 252.Described spool 4 is installed in the second accommodation chamber 251.Described first subchannel 242 and the second subchannel 252 are formed through described pipeline 22.Described second main body 25 is provided with magnetic conductor 253.Described magnetic conductor 253 is between electric magnet 3 and spool 4.Fixed by four set screw 28 between described lower cover 26 and the second main body 25, can realize adjusting the distance between magnetic conductor 253 and the magnet 411 of spool 4 by adjusting these four set screw 28.
Described lower cover 26 offers liquid chambers 261 and described spout 21.Described liquid chambers 261, pipeline 22 and spout 21 are all through.Liquid in described pipeline 22 can flow in liquid chambers 261, then flows to spout 21 again, controls liquid by spool 4 and sprays from the nozzle 5 of spout 21.Described housing 2 also includes inlay 27；Described inlay 27 is fixed on described lower cover 26, and this inlay 27 is affixed with nozzle 5.Described inlay 27 can be used for improving the steadiness of nozzle 5, it is prevented that the phenomenon departed from occurs in the process of spraying in nozzle 5.
In order to prevent electric magnet 3 from arbitrarily rocking.It is internal that this electric magnet 3 is fixed on housing 2 by a fixing plate 31 by described electric magnet 3.In order to better electric magnet 3 is fixed, described electric magnet 3 includes magnet body 32 and locating dowel 33.Described fixing plate 31 offers hole, a location (not shown)；Described locating dowel 33 can be interspersed in this hole, location regularly.Described fixing plate 31 is mutually organized work and electric magnet 3 is locked at housing 2 inside with housing 2 inwall.
Described spool 4 includes insert body 41, locating part 42 and return unit 43.Described locating part 42 offers through hole 420.Described return unit 43 is sheathed on insert body 41.This return unit 43 and insert body 41 are all interspersed in described through hole 420.Described insert body 41 moves under the External Force Acting of predetermined direction in through hole 420.Described return unit 43 is for moving into horizontal reset for insert body 41.This predetermined direction can for being pointed to direction or the opposite direction etc. of the upper cover 23 of housing 2 by housing 2 lower cover 26.Described return unit 43 can be spring.
Described insert body 41 includes magnet 411, spool mandrel 412 and stopper 413.Described spool mandrel 412 is interspersed in described through hole 420.Described return unit set 43 is located on spool mandrel 412.Described magnet 411 be installed on spool mandrel 412 on the end of one end, described electric magnet 3 direction.Described stopper peace 413 be loaded on spool mandrel 412 on the end of one end, described spout 21 direction.Preferably, it is shown that stopper 413 can be made for rubber.
Described locating part 42 is provided with limited block 421.Described limited block 421 is fixed on the hole wall of through hole 420, and is positioned at through hole 420.Described return unit 43 offsets with limited block 421.Limited block 421 can be passed through and limit the moving displacement of return unit 43, so that when spool 4 moves, return unit 43 is between the state being compressed to elongation and switches.Described locating part 42 is arranged with a spring, this locating part can be carried out pretension and improve the limit effect of locating part.
Preferably, in order to better make the drop that nozzle 5 is sprayed minimum, described nozzle 5 offers spray orifice (not shown)；The aperture 0.07mm-0.15mm of this spray orifice.Such as described nozzle 5 includes sapphire 51；Described sapphire 51 is fixed on spout 21 position, and this sapphire 51 offers described spray orifice；The aperture of this spray orifice can be preferably 0.1mm.By sapphire 51 to spraying, the longer service life of nozzle can be made.
In sum, the high-speed high frequency low discharge spray gun of the present invention adopts pulse width modulating technology control electric magnet 3 to produce magnetic field by high audio-frequency control device 1 can realize, by impulse wave, liquid is smashed extremely short grained drop (such as, the weight that every dropping liquid of nano sized particles drips can be 0.01mg ~ 0.1mg) spray from nozzle 5 afterwards, and described electric magnet 3 is to utilize described magnetic field to control spool 4 to be operated so that nozzle 5 is opened and closedown, thus avoiding the occurrence of the phenomenon of hangover." in along clean soft " perfuming in papermaking, prior art adopts two-fluid spray nozzle (compression gas+liquid) perfuming of spraying, owing to the territory, water smoke face of ejection is bigger, cause water smoke easily to run off in atmosphere and cause waste and pollute, and minimum perfume particle can be sprayed on paper without affecting papery by adopting the high-speed high frequency low discharge spray gun of this law to carry out spraying, it is about 1.6 kilograms that existing mode perfuming often rams the loose soil with a stone-roller after sowing the perfume consumption of paper, about 1.1 kilograms are had only to, thus cost savings use cost by the high-speed high frequency low discharge spray gun perfuming of this law.It addition, the high-speed high frequency low discharge spray gun of the present invention applies also for scaling powder specking, napkin perfuming, classification got ready by napkin, gets ready and distinguishes mistake, quickly gets ready, coding, and the place of drop demand ultra-fine, extra small flow etc..
Such as, when wave-soldering uses a kind of high-speed high frequency low discharge spray gun of the present invention in the process adding scaling powder, can so that the drop of fine droplets and extra small flow be beaten accurately is needing the region of spray scaling powder and can launch impulse wave and regulate the size of drop by controlling high audio-frequency control device, can the consumption of effective less scaling powder, moreover it is possible to reduce the problems such as waste and pollution；For another example the process that papermaking perfuming adopts use a kind of high-speed high frequency low discharge spray gun of the present invention to carry out perfuming, perfume granule just can be injected in often on bag paper effectively, adjustable because adopting pulse control technique to make emitted dose be, namely present invention can be suitably applied to perfuming on the paper of all size type, environmental pollution and waste would not be caused because perfume atomization is run off.
It will be apparent to those skilled in the art that can technical scheme as described above and design, make other various corresponding changes and deformation, and all these change and deformation all should belong within the protection domain of the claims in the present invention.
Claims (12)
1. a high-speed high frequency low discharge spray gun, it is characterised in that: include high audio-frequency control device, housing, electric magnet, spool and nozzle；Described high audio-frequency control device is connected with electric magnet；Described housing is provided with hollow space, spout and passage；The hollow bulb three of described spout, passage and housing is interconnected；Described electric magnet and spool are mounted in housing；Described nozzle is installed in spout；Described high audio-frequency control device adopts pulse width modulating technology to control electric magnet and produces magnetic field；Described electric magnet utilizes described magnetic field to control spool work；Described spool controls opening and closing of nozzle according to its working condition；Described passage is used for draining fluids；The flow of spray gun is controlled by controlling high audio-frequency control device.
2. high-speed high frequency low discharge spray gun according to claim 1, it is characterised in that: described nozzle offers spray orifice；The aperture 0.07mm-0.15mm of this spray orifice.
3. high-speed high frequency low discharge spray gun according to claim 1, it is characterised in that: described spool includes insert body, locating part and return unit；Described locating part offers through hole；Described return unit is sheathed on insert body；This return unit and insert body are all interspersed in described through hole；Described insert body moves under the External Force Acting of predetermined direction in through hole；Described return unit is for moving into horizontal reset for insert body.
4. high-speed high frequency low discharge spray gun according to claim 3, it is characterised in that: described insert body includes magnet, spool mandrel and stopper；Described spool mandrel is interspersed in described through hole；Described return unit is sheathed on spool mandrel；Described magnet be installed on spool mandrel on the end of one end, described electric magnet direction, described stopper be installed on spool mandrel on the end of one end, described spout direction.
5. high-speed high frequency low discharge spray gun according to claim 4, it is characterised in that: described locating part is provided with limited block；Described limited block is fixed on the hole wall of through hole, and is positioned at through hole；Described return unit and described limited block offset.
6. the high-speed high frequency low discharge spray gun according to claim 4 or 5, it is characterised in that: shown stopper is that rubber is made.
7. the high-speed high frequency low discharge spray gun according to any one of claim 1-5, it is characterised in that: described housing includes the upper cover, the first main body, the second main body and the lower cover that are sequentially connected with along housing axis；Cover on described and offer the first perforation and the second perforation；Described first perforation is for coordinating with high audio-frequency control device；Described second perforation is through with described passage.
8. high-speed high frequency low discharge spray gun according to claim 7, it is characterised in that: described first main body offers the first accommodation chamber and the first subchannel；Described electric magnet is installed on the first accommodation intracavity；Described second main body offers the second accommodation chamber and the second subchannel；Described spool is installed on the second accommodation intracavity；Described first subchannel and the second subchannel are formed through described pipeline；Described second main body is provided with magnetic conductor.
9. high-speed high frequency low discharge spray gun according to claim 7, it is characterised in that: cover under described and offer liquid chambers and described spout；This liquid chambers, pipeline and spout are all through.
10. high-speed high frequency low discharge spray gun according to claim 7, it is characterised in that: described housing also includes inlay；Described inlay be fixed on described under cover, this inlay and nozzle are affixed.
11. the high-speed high frequency low discharge spray gun according to any one of claim 1-5, it is characterised in that: described high audio-frequency control device includes high frequency controller, holding wire and keeper；Described keeper is fixed on housing；The pulse signal transmission that described holding wire is used for producing high frequency controller is to electric magnet, and described electric magnet produces magnetic field when receiving described pulse signal；Described keeper is for positioning for holding wire.
12. the high-speed high frequency low discharge spray gun according to any one of claim 1-5, it is characterised in that: described nozzle includes sapphire；Described sapphire is fixed on nozzle exit area place, and this sapphire offers described spray orifice；The aperture of this spray orifice is 0.1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244236.9A CN105728251A (en) | 2016-04-19 | 2016-04-19 | High-speed and high-frequency small-flow spray gun |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610244236.9A CN105728251A (en) | 2016-04-19 | 2016-04-19 | High-speed and high-frequency small-flow spray gun |
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| Publication Number | Publication Date |
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| CN105728251A true CN105728251A (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610244236.9A Pending CN105728251A (en) | 2016-04-19 | 2016-04-19 | High-speed and high-frequency small-flow spray gun |
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4796855A (en) * | 1988-03-15 | 1989-01-10 | General Motors Corporation | PWM electromagnetic valve with selective case hardening |
| CN2431167Y (en) * | 2000-05-15 | 2001-05-23 | 于强 | Lacing wire type automobile engine hood puzzle lock |
| US20040089730A1 (en) * | 2002-10-30 | 2004-05-13 | Denso Corporation | Dynamic flow rate adjusting method for injector |
| CN101422763A (en) * | 2007-10-31 | 2009-05-06 | 诺信公司 | Fluid dispensers and methods for dispensing viscous fluids with improved edge definition |
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Application publication date: 20160706 |
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