SE435583B - POWDER spray nozzle - Google Patents
POWDER spray nozzleInfo
- Publication number
- SE435583B SE435583B SE8000066A SE8000066A SE435583B SE 435583 B SE435583 B SE 435583B SE 8000066 A SE8000066 A SE 8000066A SE 8000066 A SE8000066 A SE 8000066A SE 435583 B SE435583 B SE 435583B
- Authority
- SE
- Sweden
- Prior art keywords
- powder
- nozzle according
- gas
- spray nozzle
- annular element
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
- B05B5/03—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying
- B05B5/032—Discharge apparatus, e.g. electrostatic spray guns characterised by the use of gas, e.g. electrostatically assisted pneumatic spraying for spraying particulate materials
-
- 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
- B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
- B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
- B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
Description
àooooee~4 reras av en målningsrobot. Sprutan 1 består i huvudsak av tre delar. En bakre del 2 utgör anslutningsdel, med vilken en slang, i vilken färgpulver transporteras från en färgbehállare, är sammankopplingsbar. Genom en mittdel 3 transporteras färgpulvret samtidigt som det laddas, och en främre del 4 bildar sprutans munstycke. Mittdelen 3 består av ett rör 5 företrädesvis av plast. I detta rör 5 är inneslutet en kärna av ett flertal làngsträckta, skruvlinjeformigt hoptvinnade mindre rör 6. Även dessa mindre rör 6 består företrädesvis av plast eller av något annat elektriskt icke ledande material. Ett skikt av metall 7 eller annat elektriskt ledande material omsluter vart och ett av dessa laddningsrör 6, såsom framgår av fig. 3. Vid laddnings- rörens 6 bakände, sett i transportriktningen, är en ledare 8 ansluten medelst exempelvis lödning 9 till sagda metallskikt 7. àooooee ~ 4 is run by a painting robot. Syringe 1 mainly consists of three parts. A rear part 2 constitutes a connecting part, with which a hose, in which toner is transported from a paint container, can be connected. Through a middle part 3 the toner is transported at the same time as it is charged, and a front part 4 forms the nozzle of the syringe. The middle part 3 consists of a tube 5 preferably of plastic. Enclosed in this tube 5 is a core of a plurality of elongate, helically twisted smaller tubes 6. These smaller tubes 6 also preferably consist of plastic or of some other electrically non-conductive material. A layer of metal 7 or other electrically conductive material encloses each of these charging tubes 6, as shown in Fig. 3. At the rear end of the charging tubes 6, seen in the transport direction, a conductor 8 is connected by means of, for example, soldering 9 to said metal layers 7. .
Dessa ledare 8 sammanlöper till en gemensam ledare 10, som är förd genom en öppning i ytterröret 5 till rörets utsida och kan anslutas till jord eller till en strömkälla. Var och en av laddningsrörens 6 ytterändar är införda i en cirkelformad kärna, en bakre kärna 11 respektive en främre kärna 12. Dessa kärnor ll, 12 uppvisar utmed sin periferi ett flertal i ringform för- delade genomgàngsöppningar 13 passande till respektive ladd- ningsrör 6. En kona 14 är anordnad i centrum av den bakre kärnan 11 och vänd mot transportriktningen, varvid densamma fungerar som en spridare för inströmmande pulver. Bakänden av ytterröret 5 uppbär en hylsa 15, vilken i sin från röret 5 riktade ände är försedd med anslutningar 16 för sammankoppling av färgsprutan 1 med en slang, i vilken färgpulver transporteras från ett färg- magasin. I rörets motsatta ände är munstycksdelen 4 fastsatt.These conductors 8 converge into a common conductor 10, which is passed through an opening in the outer tube 5 to the outside of the tube and can be connected to earth or to a current source. Each of the outer ends of the charge tubes 6 is inserted in a circular core, a rear core 11 and a front core 12, respectively. These cores 11, 12 have along their periphery a plurality of annular passage openings 13 adapted to the respective charge tube 6. A cone 14 is arranged in the center of the rear core 11 and faces the direction of transport, the same acting as a diffuser for inflowing powder. The rear end of the outer tube 5 carries a sleeve 15, which at its end facing away from the tube 5 is provided with connections 16 for connecting the spray gun 1 with a hose, in which toner is transported from a paint magazine. At the opposite end of the tube, the nozzle part 4 is fixed.
Denna munstycksdel 4 utgöres av ett spridarmunstycke 17, ett förbindningsrör 18 och en stryphylsa 19. Stryphylsan 19 är med sin bakre ände medelst en kopplingshylsa 20 ansluten till ladd- ningsrören 6.och omsluter ytterrörets 5 främre ände samt upp- visar en i riktning från sagda rör 5 koniskt avsmalnande genom- strömningspassage 21, i vilken det laddade pulvret styres mot sprutans 1 och munstyckets 17 centrumaxel. Förbindningsröret 18 1 är med sin bakre ände infört i och fasthàlles av stryphylsan 19.This nozzle part 4 consists of a spreading nozzle 17, a connecting pipe 18 and a throttling sleeve 19. The throttling sleeve 19 is connected with its rear end by means of a coupling sleeve 20 to the charging pipes 6 and encloses the front end of the outer pipe 5 and has a direction from said tube 5 conically tapered flow passage 21, in which the charged powder is guided towards the center axis of the syringe 1 and the nozzle 17. The connecting tube 18 1 is inserted with its rear end into and held by the choke sleeve 19.
Framtill är på röret 18 pàträdd en anslutningsring 22, som i sin tur uppbär sagda spridarmunstycke 17. Anslutningsringen 22 genomgås av en axiell kanal 23, som baktill är ansluten till en 8000066-4 slang 24 för tillförande av gas, såsom exempelvis luft. Mun- stycket 17 utgöres av en hylsa 25, som i sin främre ände uppbär en gavelvëgg 26, som är försedd med en centralt belägen öppning 27. Denna öppning 27 uppvisar en avfasad kant 27A på sin utsida och en trappstegsformad ansats 27B pá sin insida. I denna trapp- stegsformade ansats 27B är med sin främre ände insatt en dif- fusor 23, som har formen av ett rör och som består av luftgenom- släppligt poröst material, framställt exempelvis genom sintring.Attached to the front of the tube 18 is a connecting ring 22, which in turn carries said spreading nozzle 17. The connecting ring 22 is passed through an axial channel 23, which is connected at the rear to an 800066-4 hose 24 for supplying gas, such as air. The nozzle 17 consists of a sleeve 25, which at its front end carries a gable wall 26, which is provided with a centrally located opening 27. This opening 27 has a bevelled edge 27A on its outside and a step-shaped shoulder 27B on its inside. In this step-shaped shoulder 27B is inserted with its front end a diffuser 23, which has the shape of a tube and which consists of air-permeable porous material, produced for example by sintering.
Diffusorns 28 bakre ände är inträdd i anslutningsringen 22 och anligger mot förbindningsrörets 18 framände. Gas, som införes med ett övertryck genom kanalen 23 i anslutningsringen, strömmar in i den kammare 29, som bildas mellan munstycket 17 och diffu- sorn 28, för att sedan spridas genom de små öppningar, som finnes i det porösa material, som diffusorn består av, före inströmningen i det främre partiet av munstyckets 4 genomförings- :anal 30. Ett övertryck uppstår därvid i munstyckets främre del, varvid pulvret och gasströmmen komprimeras för att vid utträde ur munstycket 17 expandera till bildande av en dimma. Genom att variera detta övertryck kan spridningen av pulvret regleras.The rear end of the diffuser 28 enters the connecting ring 22 and abuts against the front end of the connecting pipe 18. Gas, which is introduced with an overpressure through the channel 23 in the connecting ring, flows into the chamber 29, which is formed between the nozzle 17 and the diffuser 28, to then spread through the small openings present in the porous material of which the diffuser consists. of, before the inflow into the front portion of the nozzle 30 of the nozzle 4. An overpressure then arises in the front part of the nozzle, whereby the powder and the gas stream are compressed to expand upon formation of the nozzle 17 to form a mist. By varying this overpressure, the spread of the powder can be controlled.
Funktionen av en ovan beskriven färgspruta skall nu närmare anges. Sprutan 1 är, såsom ovan angivits, med sin bakre ände 16 medelst en slang ansluten till en färgbehàllare.The function of a paint sprayer described above will now be specified. The syringe 1 is, as stated above, with its rear end 16 by means of a hose connected to a paint container.
Färgpulvret transporteras medelst gas, såsom exempelvis en luftström genom bakdelen 2 av sprutan 1 och sprides medelst konan 14 utåt, så att det strömmar in genom öppningarna 13 i kärnan ll och vidare in genom laddningsrören 6, Dessa rör 6 är, såsom ovan beskrivits, antingen anslutna till jord eller en spänningskälla, exempelvis en högspänningskälla, medelst ledarna 8, 10. På grund av uppladdningsrörens 6 skruvform virvlar pulv- ret runt i dessa under transporten och kommer med sina samtliga sidor till anliggning mot rörväggarna. Pulvret är vid utträdet från dessa uppladdningsrör 6 ordentligt laddat. Efter utträdet ur dessa rör 6 strypes pulverströmmen av strypdelen 19 och ledes genom förbindningsröret 18 fram till spridarmunstycket 17 genom strömningskanalen 30. Pulvret blandas, såsom beskrivits tidi- gare, vid frammatning i kanalen 30 med den genom ledningen 24 och diffusorn 28 inströmmande gasen och komprimeras samtidigt för att såsom ovan beskrivits expandera vid utströmning genom munstycksöppningen 27. Pulvret kommer därvid att spridas såsom _.. .-.-___.__ _ _ __... , _ _ _ ___.i._.i,__.__.__.___.. _ _ _.. _... __.,.... 8906-066-4 en dimma och kommer på grund av sin laddning att söka sig till det föremål som skall målas och fastna därpå. Även svåråtkomliga ställen på målningsobjektet kommer att täckas av färg.The toner is transported by means of gas, such as for example an air stream through the rear part 2 of the syringe 1 and is spread by means of the cone 14 outwards, so that it flows in through the openings 13 in the core 11 and further in through the charging tubes 6. These tubes 6 are, as described above, either connected to earth or a voltage source, for example a high voltage source, by means of the conductors 8, 10. Due to the screw shape of the charging tubes 6, the powder swirls around them during transport and comes with all its sides to abut against the tube walls. The powder is properly charged when exiting these charging tubes 6. After exiting these tubes 6, the powder stream is throttled by the throttle portion 19 and passed through the connecting tube 18 to the diffuser nozzle 17 through the flow channel 30. The powder is mixed, as previously described, upon feeding into the channel 30 at the same time in order, as described above, to expand upon outflow through the nozzle opening 27. The powder will then be spread as _ ...-.-___.__ _ _ __..., _ _ _ ___. i ._. i, __.__ .__.___ .. _ _ _ .. _... __., .... 8906-066-4 a fog and will, due to its charge, seek out the object to be painted and stick to it. Even hard-to-reach places on the painting object will be covered with paint.
En ovan beskriven anordning för införande av en gasström med övertryck i en genom en utmatningskanal gående pul- verström kan även tillämpas i andra sammanhang än det som ovan beskrivits.A device described above for introducing a gas stream with overpressure into a powder stream passing through a discharge channel can also be applied in other contexts than that described above.
Uppfinningen är ej begränsad till ovan endast såsom exempel beskrivna och pá ritningarna visade utförande, utan kan varieras till sina detaljer inom ramen för efterföl- jande patentkrav.The invention is not limited to the above only as examples described and shown in the drawings, but can be varied in its details within the scope of the appended claims.
Claims (9)
Priority Applications (17)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8000066A SE435583B (en) | 1980-01-04 | 1980-01-04 | POWDER spray nozzle |
SE8003751A SE455415B (en) | 1980-01-04 | 1980-05-20 | DEVELOPMENT AND DISTRIBUTION OF SOLID PARTICLES IN A GAS FLOW |
NLAANVRAGE8007097,A NL188933C (en) | 1980-01-04 | 1980-12-30 | Device for spraying solid particles in powder form. |
US06/221,444 US4401275A (en) | 1980-01-04 | 1980-12-30 | Arrangement in connection with nozzles of powder sprayers or for disintegration and distribution of solid particles in powder form in a gas stream |
DK555980A DK159867C (en) | 1980-01-04 | 1980-12-30 | ELECTROSTATIC POWDER SPRAY Aggregate |
ES498249A ES8200571A1 (en) | 1980-01-04 | 1980-12-30 | Arrangement in connection with nozzles of powder sprayers or for disintegration and distribution of solid particles in powder form in a gas stream |
AU65939/80A AU543360B2 (en) | 1980-01-04 | 1980-12-31 | Powder sprayer |
IT27034/80A IT1134932B (en) | 1980-01-04 | 1980-12-31 | EQUIPMENT IN RELATION TO SPRAY NOZZLES FOR POWDER SUBSTANCES OR FOR DISINTEGRATION AND DISTRIBUTION OF SOLID PARTICLES IN THE FORM OF POWDER SUBSTANCE IN A GASEOUS CURRENT |
NO810003A NO156115C (en) | 1980-01-04 | 1981-01-02 | DEVICE FOR DISSOLUTION AND DISTRIBUTION OF SOLID PARTICLES TRANSPORTED IN A GAS FLOW IN POWDER FORM. |
FR8100019A FR2473906B1 (en) | 1980-01-04 | 1981-01-02 | DEVICE FOR DISINTEGRATION AND DISTRIBUTION OF POWDER-LIKE SOLID PARTICLES entrained in a gas stream |
AR283858A AR228350A1 (en) | 1980-01-04 | 1981-01-02 | DEVICE FOR THE DISINTEGRATION AND DISTRIBUTION OF SOLID PULVERULENT PARTICLES |
DE3100001A DE3100001A1 (en) | 1980-01-04 | 1981-01-02 | DEVICE FOR SOLVING AND DISTRIBUTING SOLID PARTICLES IN POWDER FORM IN A GAS FLOW |
CH281A CH643755A5 (en) | 1980-01-04 | 1981-01-02 | DETERGENT DEVICE AND EJECTOR OF POWDERED SUBSTANCES, TRANSPORTED IN A GASEOUS CURRENT. |
MX185415A MX151651A (en) | 1980-01-04 | 1981-01-05 | IMPROVEMENTS IN DUST SPRAY NOZZLE |
GB8100108A GB2066702B (en) | 1980-01-04 | 1981-01-05 | Nozzles of powder sprayers or apparatus for disintegration and distribution of powder in a gas stream |
JP5681A JPS56108556A (en) | 1980-01-04 | 1981-01-05 | Spray nozzle for pulverulenttbody sprayer |
BR8100021A BR8100021A (en) | 1980-01-04 | 1981-01-05 | DEVICE FOR THE DISINTEGRATION AND DISTRIBUTION OF SOLID PARTICLES IN PO SHAPE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8000066A SE435583B (en) | 1980-01-04 | 1980-01-04 | POWDER spray nozzle |
Publications (2)
Publication Number | Publication Date |
---|---|
SE8000066L SE8000066L (en) | 1981-07-05 |
SE435583B true SE435583B (en) | 1984-10-08 |
Family
ID=20339886
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8000066A SE435583B (en) | 1980-01-04 | 1980-01-04 | POWDER spray nozzle |
SE8003751A SE455415B (en) | 1980-01-04 | 1980-05-20 | DEVELOPMENT AND DISTRIBUTION OF SOLID PARTICLES IN A GAS FLOW |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8003751A SE455415B (en) | 1980-01-04 | 1980-05-20 | DEVELOPMENT AND DISTRIBUTION OF SOLID PARTICLES IN A GAS FLOW |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPS56108556A (en) |
SE (2) | SE435583B (en) |
-
1980
- 1980-01-04 SE SE8000066A patent/SE435583B/en not_active IP Right Cessation
- 1980-05-20 SE SE8003751A patent/SE455415B/en not_active IP Right Cessation
-
1981
- 1981-01-05 JP JP5681A patent/JPS56108556A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
SE8000066L (en) | 1981-07-05 |
SE455415B (en) | 1988-07-11 |
SE8003751L (en) | 1981-07-05 |
JPS6246221B2 (en) | 1987-10-01 |
JPS56108556A (en) | 1981-08-28 |
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