DK141837B - Fluid mixing valve, especially for mixing air with a catalyst. - Google Patents
Fluid mixing valve, especially for mixing air with a catalyst. Download PDFInfo
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- DK141837B DK141837B DK121973AA DK121973A DK141837B DK 141837 B DK141837 B DK 141837B DK 121973A A DK121973A A DK 121973AA DK 121973 A DK121973 A DK 121973A DK 141837 B DK141837 B DK 141837B
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- nozzle
- mixing
- piston
- valve
- fluid
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
- B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
- B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
- B05B7/1272—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated actuated by gas involved in spraying, i.e. exiting the nozzle, e.g. as a spraying or jet shaping gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/2496—Self-proportioning or correlating systems
- Y10T137/2559—Self-controlled branched flow systems
- Y10T137/2564—Plural inflows
- Y10T137/2572—One inflow supplements another
Description
(ftp) (11) FREMLÆ66ELSESSKRIFT 141837 DANMARK ln, c|i J * ,'i;* «(21) Ansøgning nr. 1219/75 (22) Indleveret den ^ · 1973 (23) Lebedag 6. mar. 1973(ftp) (11) PUBLICATION MANUAL 141837 DENMARK ln, c | i J *, 'i; *' (21) Application No. 1219/75 (22) Filed on ^ · 1973 (23) Life Day, 6 March. 1973
(44) Ansøgningen fremlagt og ,n . . Q(44) The application presented and, n. . Q
fremlægøelsesskriftet offentliggjort den ·?υ * · 9θ0 DIREKTORATET FOR _ PATENT-OG VAREMÆRKEVÆSENET (30) Prioritet begæret fra denthe petition published on ·? υ * · 9θ0 DIRECTORATE FOR THE PATENT AND TRADEMARKET (30) Priority requested from the
21. tnar. 1972, 236740, US21. tnar. 1972, 236740, US
(71) RANSBURG CORPORATION, 3939 West 56th Street, Indianapolis, Indiana, TJS.(71) RANSBURG CORPORATION, 3939 West 56th Street, Indianapolis, Indiana, TJS.
(72) Opfinder: Robert Douglas Hetherington, 9145 Glenoaks Boulevard, Sun Valley, Californien, US: TJraig Lynn Freeman, 9145 Glenoaks Boulevard,(72) Inventor: Robert Douglas Hetherington, 9145 Glenoaks Boulevard, Sun Valley, California, US: TJraig Lynn Freeman, 9145 Glenoaks Boulevard,
Sun Valley, Californien, US.Sun Valley, California, US.
(74) Fuldmægtig under sagens behandling:(74) Plenipotentiary in the proceedings:
Firmaet Chas« Hude. ____________ (B4) Blandeventil for fluida, isser til at blande luft med en katalysator.The company Chas «Hude. ____________ (B4) Fluid mixing valve for mixing air with a catalyst.
Den foreliggende opfindelse angår en blandeventil af den i indledningen til krav 1 anførte art.The present invention relates to a mixing valve of the kind set forth in the preamble of claim 1.
Der kendes forskellige blandeventiler for fluida til brug for blanding af et antal fluida, før de udtømmes gennem en hensigtsmæssig fluidumfordeler, såsom en sprøjtepistol. I forbindelse med fremstillingen af plaststoffer af polyester og epoxyharpiks-typen, der kræver en blanding af en katalysator med et harpiks-holdigt stof, er det især ønskeligt først grundigt at sørge for blandingen af katalysatoren med luft fra en trykluftkilde. Da katalysatoren, der bruges i denne forbindelse, er let fordampe- 2 141837 lig og let fængelig og "brændbar, må man være omhyggelig i forbindelse med omgangen med katalysatoren. Det er derfor ønskeligt at holde den mængde af luft, der skal blandes med katalysatoren, så lavt som muligt, således at mængden af katalysatordampe reduceres til et minimum.Various mixing valves are known for fluids for use in mixing a plurality of fluids before being discharged through an appropriate fluid distributor such as a spray gun. In the manufacture of polyester and epoxy resin-type plastics which require a mixture of a catalyst with a resin-containing substance, it is particularly desirable first to thoroughly arrange the mixture of the catalyst with air from a source of compressed air. Since the catalyst used in this connection is easily vaporizable and easily catchable and flammable, care must be taken in dealing with the catalyst. It is therefore desirable to maintain the amount of air to be mixed with the catalyst. , as low as possible so that the amount of catalyst vapors is reduced to a minimum.
Flere af de kendte blandingsorganer er ikke således udformet, at de på tilfredsstillende måde kan blande luften og katalysatoren under brug af en minimal mængde af trykluft. Andre kendte organer er ikke hensigtsmæssigt udformet til behandling af det let fordampelige katalysatorstof. Yderligere kendte organer har vist sig ikke at fungere jævnt og effektivt i forbindelse med blandingen af luften og katalysatoren.Several of the known mixing means are not designed to adequately mix the air and the catalyst using a minimal amount of compressed air. Other known means are not conveniently designed to treat the easily vaporizable catalyst substance. Further known means have been found not to function smoothly and effectively in the mixing of the air and the catalyst.
Det er den foreliggende opfindelses formål at tilvejebringe en blande ventil for fluida, der kan regulere og blande mindst to forskellige fluida, såsom en katalysator og luft på tilstrækkelig effektiv måde, samtidig med at der kun kræves et minimalt lufttryk, og som muliggør en sikker omgang med en fordampelig og let fængelig eller brændbar væske, såsom en katalysator, samtidig med at den i samlet stand udgør en ventil- og blandeenhed, som kan indskydes i linie med fluidumsledninger for materialetilførsel til sprøjteorganet og samtidig hermed gøre det muligt, at man kan tilføje et blande- og styreorgan for to fluida på et sprøjteorgan med en enkelt styreventil og således let kan udvide funktionsområdet for eksisterende sprøjtepistoler.It is an object of the present invention to provide a mixing valve for fluids which can regulate and mix at least two different fluids such as a catalyst and air in a sufficiently efficient manner while requiring only minimal air pressure and allowing a safe handling with a vaporizable and easily catchable or combustible liquid, such as a catalyst, while at the same time constituting a valve and mixing unit which can be inserted in line with fluid conduits for material supply to the syringe member and at the same time allowing the addition of a mixing and control means for two fluids on a single control valve syringe means and thus can easily extend the operating range of existing spray guns.
Dette formål tilgodeses ved hjælp af en blandeventil af den indledningsvist omtalte art og ejendommelig ved det i krav l's kendetegnende del anførte. Når denne er forbundet til kilder for et første og et andet fluidum under tryk, blokerer den for begge fluidumstrømme. Men når husets udløbsende åbnes til det atmosfæriske tryk, vil stemplet, der virker ved hjælp af trykdifferensen, ved trykket af det andet fluidum, forskydes væk fra fluidumdysen, åbne fluidumdysen for strømmen af det første fluidum og afblokere for den kombinerede gennemstrømningskanal, således at en blandet strøm af det første Og det andet fluidum strømmer ud fra husets 3 141837 udløbsende. Når denne anden-fluidums-ventil og blandeenhed anbringes på en enkeltventils sprøjtepistol, styrer betjeningen af sprøjtepistolen ventilblandingen og strømningen af to fluidummer som er tilsluttet til fluidumventilen eller blandeenheden. Denne enhed er særlig velegnet i forbindelse med en flerkomponentsprøjtepistol med intern blanding, hvor en katalysator og komprimeret luft blandes med en hapiks og udsprøjtes fra pistolens udsprøjtningsdyse .This object is met by means of a mixing valve of the kind mentioned in the beginning and peculiar to the characterizing part of claim 1. When connected to sources of a first and a second fluid under pressure, it blocks both fluid flows. However, when the outlet end of the housing is opened to the atmospheric pressure, the plunger acting by the pressure difference, at the pressure of the second fluid, will shift away from the fluid nozzle, open the fluid nozzle for the flow of the first fluid, and unblock the combined flow channel so that a mixed flow of the first And the second fluid flows from the outlet end of the housing. When this second fluid valve and mixing unit is placed on a single valve spray gun, the operation of the spray gun controls the valve mixing and the flow of two fluid volumes connected to the fluid valve or mixing unit. This unit is particularly suitable in conjunction with a multi-component spray gun with internal mixing where a catalyst and compressed air are mixed with a hapix and sprayed from the spray gun nozzle.
Ved hjælp af det i krav 2's kendetegnende del anførte får man en enkel og effektiv cylinder- og stempelkonstruktion til udformning af én forbindende gennemstrømningskanal mellem ventilhusets blandekammerdel og dets udløbsende, medens det i krav 3's kendetegnende del omhandlede angiver en tilsvarende udformning med flere gennemstrømningskanaler.By means of the characterizing part of claim 2, a simple and effective cylinder and piston structure is provided for forming one connecting flow channel between the mixing chamber part of the valve housing and its outlet end, while the characterizing part of claim 3 indicates a corresponding configuration with several flow channels.
Krav 4 og 5 angår den koaksiale forbindelsesteknik og specielt konstruktionsmæssige deltaljer ved en ventil, hvor denne teknik benyttes. Ved det i krav 4's kendetegnende del anførte får man en enkelt konstruktion for enkel tilslutning af tilførselsledningerne til samvirke med den indre ventilkonstruktion til brug ved driften af blandeventilen for to fluidummer med koncentrisk indre og ydre første og anden fluidumledninger, hvor fluidumdysens indløb kobles med den indre ledning, og den ydre ledning kobles til blandekammeret gennem den del af huset, der er dannet mellem fluidumdysen og selve huset. Det i krav 5’s kendetegnende del anførte giver videre specielle konstruktionsmæssige detaljer for denne teknik, idet fluidumdysen er båret i huset og dog holdes i afstand fra dets indre vægge ved kamme, der sammen med fluidumdysen og huset definerer et antal gennemstrømningskanaler således, at det andet fluidum kan strømme forbi fluidumdysen.Claims 4 and 5 relate to the coaxial connection technique and, in particular, to structural parts of a valve using this technique. The characterizing part of claim 4 provides a single structure for simple connection of the supply lines to cooperate with the inner valve structure for use in the operation of the mixing valve for two concentric fluid and outer first and second fluid conduits, where the inlet of the fluid nozzle is coupled to the inner conduit, and the outer conduit is coupled to the mixing chamber through the portion of the housing formed between the fluid nozzle and the housing itself. The characterizing part of claim 5 further provides special structural details for this technique, the fluid nozzle being supported in the housing and yet being spaced from its inner walls by cams which together with the fluid nozzle and housing define a plurality of flow channels such that the second fluid can flow past the fluid nozzle.
Foretrukne udførelsesformer for blandeventilen for to fluida ifølge opfindelsen beskrives nærmere nedenfor på grundlag af tegningen, hvor fig. 1 viser en blandeventil for fluida ifølge den foreliggende opfindelse anbragt i forbindelse med et koncentrisk to-ledningsaggregat og en hensigtsmæssig sprøjtepistol set i perspektiv, 4 161837 fig. 2 et snit langs linien 2-2 i fig. 1, der viser blandeventi-len ifølge den foreliggende opfindelse i detaljer, fig. 3 et snit langs linien 3-3 i fig. 2, fig. 4 et snit langs linien 4-4 i fig. 2, fig. 5 et.delsnit af en del af blandeventilen, hvor man ser et stempel anbragt i en med porte forsynet styremuffe hvilende imod en dyse og fig. 6 et snit langs linien 6-6 i fig. 5.Preferred embodiments of the mixing fluid for two fluids according to the invention are described in more detail below on the basis of the drawing, in which fig. Figure 1 is a perspective view of a fluid mixing valve for the present invention disposed in conjunction with a concentric two-lead assembly and a suitable spray gun; 2 is a sectional view taken along line 2-2 of FIG. 1 showing in detail the mixing valve of the present invention; FIG. 3 is a section along the line 3-3 of FIG. 2, FIG. 4 is a section along line 4-4 of FIG. 2, FIG. 5 is a sectional view of a portion of the mixing valve showing a piston mounted in a gate-fitted control sleeve resting against a nozzle; FIG. 6 is a sectional view taken on line 6-6 of FIG. 5th
I fig. 1 ses en blandeventil 10 for fluida, og som er udformet til at forbindes til en indløbsende 30 til et organ for tilførsel af fluida til ventilen, såsom et to-ledningsaggregat 11, og som ved en udløbsende 39 er udformet til at tilsluttes en sprøjtepistol 12. To-ledningsaggregatet 11 består af en indre tilførselsledning 13, fortrinsvis af plast, og en dermed koncentrisk ydre tilførselsledning 14. En spiralsnoet fjeder 15 kan anbringes udvendigt omkring den ydre ledning 14 for at få en bedre styret bøjning af ledningen og til desuden at beskytte ledningen. Enden af den ydre ledning 14 er også forsynet med en hensigtsmæssig indvendig gevindskåren hætte 16 til forbindelse med indløbsenden 30 af blandeventilen 10. Ved en anvendelsesmåde for organet i-følge den foreliggende opfindelse benyttes den indre ledning 13 til at tilføre en katalysator, såsom methylethylketonperoxid, under tryk til en væskedyse 40 (vist i fig. 2) af blandeventilen, medens den anden ledning 14 benyttes til at tilføre komprimeret luft til blandeventilen 10.Den ydre ledning 14 fungerer som en ekstra sikkerhed til at reducere lækning i tilfælde af, at den indre ledning 13 skulle svigte ved at knække eller revne.In FIG. 1, a fluid mixing valve 10 is shown which is designed to be connected to an inlet end 30 to a means for supplying fluids to the valve, such as a two-wire assembly 11, and which is configured at an outlet end 39 to be connected to a spray gun 12 The two-wire assembly 11 consists of an inner supply line 13, preferably of plastic, and a concentric outer supply line 14. A spirally wound spring 15 can be placed externally around the outer line 14 for a better controlled bending of the line and in addition to protect cord. The end of the outer conduit 14 is also provided with a suitable internal threaded cap 16 for connection to the inlet end 30 of the mixing valve 10. In a method of use of the means of the present invention, the inner conduit 13 is used to supply a catalyst such as methyl ethyl ketone peroxide. under pressure to a liquid nozzle 40 (shown in Figure 2) of the mixing valve, while the second conduit 14 is used to supply compressed air to the mixing valve 10. The outer conduit 14 acts as an additional security to reduce leakage in the event that it inner wire 13 should fail by cracking or cracking.
Sprøjtepistolen 12 kan være af enhver hensigtsmæssig art og f.eks. være af den art, der fremgår af beskrivelsen til U.S.A, patent nr. 3.330.484. Sprøjtepistoler af denne art er særligt hensigtsmæssige til at sprøjte en blanding af termohærdende plaststoffer, katalyserede klæbemidler, gel-belægninger, flydende skumstoffer o.s.v. Som vist i fig. 1 er sprøjtepistolen forsynet med en hensigtsmæssig indvendigt gevindskåren indløbsforbindelse 17 for tilslut- 5 ΙΑ 1837 ning til udløbsenden 39 af blandeventilen 10. Hvis ventilen 10 benyttes til et termohærdende plaststof, såsom polyesterharpiks, blandes blandingen af luft og katalysator fra blandeventilen 10 med harpiksen inde i sprøjtepistolen 12 forud for udskydning fra denne.The spray gun 12 can be of any convenient kind and e.g. be of the kind disclosed in U.S. Patent No. 3,330,484. Spray guns of this kind are particularly suitable for spraying a mixture of thermosetting plastics, catalyzed adhesives, gel coatings, liquid foams, etc. As shown in FIG. 1, the spray gun is provided with an appropriate internal threaded inlet connection 17 for connection to the outlet end 39 of the mixing valve 10. If the valve 10 is used for a thermosetting plastic such as polyester resin, the mixture of air and catalyst from the mixing valve 10 is mixed with the mixing valve 10. the spray gun 12 prior to firing from it.
I fig. 2 vises, at blandeventilen 10 omfatter et ventilhus 20, der består af et første stykke 21 og et andet stykke 22, der er skruet sammen. Tætningsorganer, såsom en O-ring 28 er anbragt mellem de to stykker 21 og 22 for at reducere lækning af fluidaene. Indløbsenden 30 og udløbsenden 39 af ventilhuset 20 har henholdsvis gevindskårne tilslutningsstykker 23 og 24.In FIG. 2, it is shown that the mixing valve 10 comprises a valve housing 20 consisting of a first piece 21 and a second piece 22 screwed together. Sealing means such as an O-ring 28 are disposed between the two pieces 21 and 22 to reduce leakage of the fluids. Inlet end 30 and outlet end 39 of valve housing 20 have threaded connectors 23 and 24, respectively.
Ventilhuset 20 omfatter et centralt blandekammer 25, der har en indløbsende 30 og en udløbsende 39. Indløbsenden 30 har et afsnit 26, der aftager i tværsnit indadtil til en mindre cylindrisk kanal 31, der igen er i forbindelse med det centrale kammer 25. Kammeret 25 har en cylindrisk, første del 32 og en udvidet, cylindrisk, anden del 33, der indbyrdes afgrænser en skulder 34. Delene 32 og 33 udgør begge en del af det første stykke 21 af ventilhuset 20. Resten af kammeret 25 er udformet i det andet stykke 22 af ventilhuset 20 og består af en videre mellemdel 35 med en noget mindre diameter end den cylindriske anden del 33, af en indadforløbende skulder 36 og en endedel 37. Endedelen 37 af kammeret 25 er forsynet med et afsluttende hulrum eller indskæring 38, der er i forbindelse med den centralt anbragte gennemstrømningsåbning 27 ved udløbsenden 39.The valve body 20 comprises a central mixing chamber 25 having an inlet end 30 and an outlet end 39. The inlet end 30 has a section 26 which cuts inwardly inwardly to a smaller cylindrical channel 31 which in turn is connected to the central chamber 25. The chamber 25 has a cylindrical, first portion 32 and an extended, cylindrical, second portion 33, which are mutually defining a shoulder 34. The portions 32 and 33 both form part of the first piece 21 of the valve housing 20. The rest of the chamber 25 is formed in the second piece 22 of the valve body 20 and consists of a further intermediate portion 35 of a somewhat smaller diameter than the cylindrical second portion 33, of an inwardly extending shoulder 36 and an end portion 37. The end portion 37 of the chamber 25 is provided with a closing cavity or notch 38 which is in connection with the centrally located flow opening 27 at the outlet end 39.
Yed indløbsenden 30 af kammeret 27 er der monteret en væskedyse 40, der er forsynet med en indstrømningsende 41 og en udstrømningsende 42. Væskedysen 40 omfatter et hovedlegeme 43, en spændeskive 45 og en møtrik 46 som vist i fig. 2.At the inlet end 30 of the chamber 27 is mounted a liquid nozzle 40 provided with an inlet end 41 and an outlet end 42. The liquid nozzle 40 comprises a main body 43, a washer 45 and a nut 46 as shown in FIG. 2nd
Dysens hovedlegeme 43 omfatter en cylindrisk del 47, der på den ene ende er forsynet med gevind 48, og hvorfra der ved den modsatte ende rager et antal kamme 49 ud. Kammene 49 afgrænser et antal af med indbyrdes afstand anbragte, i det væsentlige halvcirkulært formede åbninger eller gennemstrøraningskanaler 50 141837 6 (se fig. 3) rundt langs periferien af den cylindriske anden del 33 af kammeret 25. Den ydre ende af hver af kammene 49 ligger an imod skulderen 34 mellem delene 32 og 33 af kammeret 25.The main body 43 of the nozzle comprises a cylindrical portion 47, provided at one end with threads 48, from which at the opposite end a plurality of ridges 49 protrude. The cams 49 define a plurality of spaced substantially semicircular apertures or through passageways 50 (see Fig. 3) around the periphery of the cylindrical second portion 33 of the chamber 25. The outer end of each of the cams 49 lies abutting the shoulder 34 between the portions 32 and 33 of the chamber 25.
Hovedlegemet 43 af væskedysen 40 omfatter et kammer 51 ved indløbsenden, der snævres ind til en central gennemstrømningsåbning 52, der igen er i forbindelse med en munding 53, hvorfra et fluidum udskydes. Mundingen 53 er en del af en spids 54, der rager ud fra enden af hovedlegemet 43 af væskedysen 40.The main body 43 of the liquid nozzle 40 comprises a chamber 51 at the inlet end which narrows into a central flow opening 52 which is again in contact with an orifice 53 from which a fluid is ejected. The orifice 53 is a portion of a tip 54 projecting from the end of the main body 43 of the liquid nozzle 40.
Den indre ledning 13 af to-ledningsaggregatet 11 forløber gennem indløbsenden 41 af dysen 40 og ender i kammeret 51 af hovedlegemet 43 af dysen. Som vist i fig. 2 holder møtrikken 46 en muffe 44 og spændeskiven 45 an imod enden af hovedlegemet 43 for at lette tilspændingen eller fastlåsningen af den indre ledning 13 i rette stilling indenfor væskedysen 40. Den indre ledning 13 tilfører et første fluidum, såsom en katalysator, under tryk til den indvendige side af væskedysen 40, uden at den først strømmer ud til nogen anden del af blandeventilen 10 for fluida.The inner conduit 13 of the two conduit assembly 11 extends through the inlet end 41 of the nozzle 40 and ends in the chamber 51 of the main body 43 of the nozzle. As shown in FIG. 2, the nut 46 holds a sleeve 44 and the washer 45 against the end of the main body 43 to facilitate the tightening or locking of the inner conduit 13 in the proper position within the liquid nozzle 40. The inner conduit 13 supplies a first fluid, such as a catalyst, under pressure. the inner side of the fluid nozzle 40 without first flowing out to any other part of the fluid mixing valve 10.
Yæskedysen 40 holdes i rette stilling i kammeret 25 ved hjælp af en cylindrisk muffe 60, der ligger an imod de ydre kanter af kammene 49» således at kammene 49 holdes imod skulderen 34. Muffen 60 er forsynet med en indadgående skulder 61 i det væsentlige midt på muffen, hvilken skulder ligger an imod enden af det andet stykke 22 af blandeventilen 10. Når stykket 22 er skruet sammen med det første stykke 21, ligger enden af stykket 22 an imod skulderen 61 for derved at fastholde muffen 60 og følgelig væskedysen 40 i den rette stilling i kammeret 25. Som vist i fig.The box nozzle 40 is held in the correct position in the chamber 25 by a cylindrical sleeve 60 abutting the outer edges of the cams 49 »so that the cams 49 are held against the shoulder 34. The sleeve 60 is provided with an inward shoulder 61 substantially centered. on the sleeve, which shoulder abuts the end of the second piece 22 of the mixing valve 10. When the piece 22 is screwed together with the first piece 21, the end of the piece 22 abuts against the shoulder 61, thereby retaining the sleeve 60 and consequently the liquid nozzle 40 in the correct position in the chamber 25. As shown in FIG.
2, 5 og 6 omfatter muffen 60 ved den ende, der er længst væk fra væskedysen 40, mindst to porte 62, der fortrinsvis ligger med en indbyrdes afstand på 180°.2, 5 and 6, the sleeve 60 at the farthest distance from the liquid nozzle 40 comprises at least two ports 62, preferably spaced 180 ° apart.
Et stempel 65 er monteret i muffen 60 og kan forskydes i muffens længderetning. Muffen 60 har en indadgående rand 63, der begrænser bevægelsen af stemplet 65 i fluidets strømningsretning. Som vist i fig. 5 omfatter stemplet 65 et i det væsentlige rektangulært hovedlegeme 66 og en cirkulær endedel 67. De fire hjørner 141837 7 af det rektangulære hovedlegeme 66 er afrundede for at være konforme med konturen af det Indvendige kammer af muffen 60. De ud-fladede sider af det rektangulære hovedlegeme 66 mellem hvert af de afrundede hjørner 68 danner et antal gennemstrømningskanaler 69, i dette eksempel fire, som vist i fig. 4, mellem de rektangulære dele 66 og den indvendige side af muffen 60. Den cirkulære endedel 67 danner en tætning med den indvendige side af muffen 60 hele vejen rundt om den indvendige side af muffen.A piston 65 is mounted in the sleeve 60 and can be displaced longitudinally of the sleeve. The sleeve 60 has an inward rim 63 which restricts the movement of the piston 65 in the flow direction of the fluid. As shown in FIG. 5, the piston 65 comprises a substantially rectangular main body 66 and a circular end portion 67. The four corners 14 of the rectangular main body 66 are rounded to conform to the contour of the inner chamber of the sleeve 60. The flattened sides of the rectangular main body 66 between each of the rounded corners 68 forms a plurality of flow channels 69, in this example four, as shown in FIG. 4, between the rectangular portions 66 and the inner side of the sleeve 60. The circular end portion 67 forms a seal with the inner side of the sleeve 60 all the way around the inner side of the sleeve.
I fig. 2 ses endvidere, at den ende af stemplet 65, der er nærmest ved væskedysen 40, omfatter et hulrum eller en indskæring 70 til optagelse af et hensigtsmæssigt tætningsorgan 71 til lukning af mundingen 53. Tætnings organet 71, der kan være af ethvert hensigtsmæssigt materiale, såsom gummi, danner en fladetætning for normal lukning af mundingen 53 af væskedysen 40. Stemplet 65 er normalt fjederpåvirket hen imod dysen 40 ved hjælp af et fjederorgan 73, såsom en spiralfjeder, hvorved tætningsorganet 71 normalt lukker mundingen 53, når der ikke strømmer noget fluidum gennem blandeventilen 10. Den en ende af fjederen ligger an imod skulderen 74 på den cirkulære endedel 67 af stemplet 65, medens den anden ende af fjederen 73 optages i hulrummet 38 af det andet stykke 22 af ventilen 20.In FIG. 2, it is further seen that the end of the piston 65 closest to the liquid nozzle 40 includes a cavity or cut 70 for receiving a suitable sealing member 71 for closing the mouth 53. The sealing member 71 which may be of any suitable material, such as rubber, a surface seal forms for normal closure of the mouth 53 of the liquid nozzle 40. The piston 65 is usually spring applied to the nozzle 40 by a spring member 73 such as a coil spring, the sealing member 71 normally closing the mouth 53 when no fluid is flowing. through the mixing valve 10. The one end of the spring abuts against the shoulder 74 on the circular end portion 67 of the piston 65, while the other end of the spring 73 is received in the cavity 38 of the second piece 22 of the valve 20.
Ved betjening af blandeventilen 10 tilføres et første fluidum, såsom en katalysator, under tryk til den indre ledning 13 af toledningsaggregatet 11, medens et andet fluidum under tryk, såsom luft, tilføres til indløbsenden 30 af kammeret 25 af huset ved hjælp af den ydre ledning 14. Normalt er stemplet 65 i den i fig.When operating the mixing valve 10, a first fluid, such as a catalyst, is supplied under pressure to the inner conduit 13 of the two-conductor assembly 11, while a second fluid under pressure, such as air, is supplied to the inlet end 30 of the chamber 25 of the housing by means of the outer conduit. 14. Normally, the piston 65 in the embodiment of FIG.
5 viste stilling, hvorved tætningsorganet 71 lukker mundingen 53 af væskedysen 40, således at ethvert fluidum, der kommer ind i den indre del af dysen 40 gennem ledningen 13, er forhindret fra at træde ud gennem mundingen 53. Det andet fluidum under tryk tilføres til kammeret 25 gennem den ydre ledning 14. Det andet fluidum, der kan være luft under tryk, strømmer rundt om legemet af væskedysen 40 langs ydersiden af kammeret 25, gennem gennem-strømningsåbningeme 50, der er dannet mellem kamme 49 af væskedysen 40, og derpå gennem gennemstrømningskanalerne 69, der er dannet mellem den rektangulære del 66 af stemplet 65 og den ind- 8 141837 vendige side af den cylindriske muffe 60 som vist ved pilene 57· Ved dette punkt berører det andet fluidum den indvendige ende af den cirkulære endedel 67 af stemplet 65, hvorved stemplet forskydes hen imod udløbsenden 39 af kammeret 25. Når stemplet 65 forskydes i retning af væske strømmen, forskydes den tætnende, cirkulære endedel 67 forbi det punkt, hvor portene 62 af muffen befinder sig. Så snart dette sker, træder det fluidum, der strømmer omkring den udvendige side af den rektangulære del 66 af stemplet 65, gennem portene 62 ind i endedelen 57 af kammeret 25 og derpå ud gennem den centrale gennemstrømningsåbning 27 af udgangsenden 39.5, whereby the sealing member 71 closes the mouth 53 of the liquid nozzle 40 so that any fluid entering the inner portion of the nozzle 40 through the conduit 13 is prevented from exiting through the mouth 53. The second fluid under pressure is supplied to the chamber 25 through the outer conduit 14. The second fluid, which may be pressurized air, flows around the body of the liquid nozzle 40 along the outside of the chamber 25, through the flow openings 50 formed between cams 49 of the liquid nozzle 40, and then through the flow ducts 69 formed between the rectangular portion 66 of the piston 65 and the inner side of the cylindrical sleeve 60 as shown by arrows 57 · At this point, the second fluid touches the inner end of the circular end portion 67 of the plunger 65, thereby displacing the plunger toward the outlet end 39 of the chamber 25. As the plunger 65 is displaced in the direction of the fluid flow, the sealing, circular end portion 67 is displaced past the point; where the ports 62 of the sleeve are located. As soon as this occurs, the fluid flowing around the outside of the rectangular portion 66 of the piston 65 enters through the ports 62 into the end portion 57 of the chamber 25 and then out through the central flow opening 27 of the outlet end 39.
Efterhånden som stemplet 65 forskydes hen imod udløbsenden 39 af kammeret 25, åbnes endvidere mundingen 53 af væskedysen 40 for derved at tillade, at det første fluidum eller katalysatoren tilføres gennem den indre ledning 13, således at den kan træde ud gennem mundingen 53 ind i det indre af muffen 60 som vist ved pilene 58. Hvis det første fluidum eller katalysatoren tilføres ved et tryk, der er større end trykket for det andet fluidum, der strømmer rundt om ydersiden af dysen, så vil det første fluidum strømme udefter hen imod periferien af den indvendige side af muffen 60 og blandes med det andet fluidum. Fra dette punkt forskydes blandingen gennem gennemstrømningskanaleme 69, portene 62 og udløbsenden 39 af ventilen 10. Det er vigtigt ved betjening af ventilen ifølge den foreliggende opfindelse, at det første fluidum tilføres til den indvendige side af dysen 40 ved et større tryk end det tryk, hvormed det andet fluidum tilføres til kammeret 25. Når strømningen af det andet fluidum standses, udløses den energi, der er opmagasineret i fjederen 37 på grund af den oprindelige forskydning af stemplet 65, og stemplet 65 vender tilbage til den normale lukkede stilling, i hvilken tætningsorganet 71 ved fjederkraft er trykket imod mundingen 53 af dysen 40, hvorved fluidumstrømmen fra mundingen standses.Furthermore, as the piston 65 is displaced toward the outlet end 39 of the chamber 25, the orifice 53 of the liquid nozzle 40 is opened to allow the first fluid or catalyst to be supplied through the inner conduit 13 so that it can exit through the orifice 53 into it. as shown by arrows 58. If the first fluid or catalyst is supplied at a pressure greater than the pressure of the second fluid flowing around the outside of the nozzle, then the first fluid will flow outward toward the periphery of the nozzle 60. the inner side of the sleeve 60 and mix with the second fluid. From this point, the mixture is displaced through the flow channels 69, the ports 62 and the outlet end 39 of the valve 10. It is important in operating the valve of the present invention that the first fluid be supplied to the inner side of the nozzle 40 at a greater pressure than the pressure. by which the second fluid is supplied to the chamber 25. When the flow of the second fluid is stopped, the energy stored in the spring 37 is released due to the initial displacement of the piston 65 and the piston 65 returns to the normal closed position in which the spring means sealing means 71 is pressed against the orifice 53 of the nozzle 40, thereby stopping the fluid flow from the orifice.
Fordelene ved den foreliggende opfindelse fremgår af den ovenstående beskrivelse. Blandeventilen 10 for fluida muliggør, at to fluida, såsom luft og en katalysator, holdes adskilt og først blandes kort før brugsstedet. Det fjederpåvirkede stempel _ 141837 y tilvejebringer et hensigtsmæssigt organ for at forhindre en fluidumstrøm gennem ventilen 10, indtil det øjeblik, hvor et andet fluidum under tryk tilføres til kammeret 25 af blandeven-tilen 10 for fluida. Desuden tilvejebringer ventilen ifølge den foreliggende opfindelse et hensigtsmæssigt organ for blanding af to adskilte fluida. Det er ganske enkelt nødvendigt at sørge for, at det første fluidum, der tilføres til det indre af dysen, tilføres ved et større tryk end det andet fluidum, der tilføres til kammeret, således at det første fluidum ved åbning af mundingen 53 af væskedysen 40 strømmer udefter for at blive blandet med det andet fluidum, der strømmer gennem organets kammer. Blandingen af de to fluida kan således gennemføres med et minimalt lufttryk.The advantages of the present invention are apparent from the above description. The fluid mixing valve 10 allows two fluids, such as air and a catalyst, to be separated and first mixed shortly before the site of use. The spring actuated piston provides an appropriate means for preventing a flow of fluid through the valve 10 until the moment when another fluid is pressurized to the chamber 25 of the mixing valve 10 for fluids. In addition, the valve of the present invention provides a convenient means for mixing two separate fluids. It is simply necessary to make sure that the first fluid supplied to the interior of the nozzle is supplied at a greater pressure than the second fluid supplied to the chamber so that the first fluid upon opening the mouth 53 of the liquid nozzle 40 flowing outward to be mixed with the second fluid flowing through the chamber of the organ. Thus, the mixing of the two fluids can be carried out with minimal air pressure.
Det skal bemærkes, at den her anviste blandeventil kan benyttes til at udsprøjte de fleste flerkomponentmaterialer omfattende, men ikke begrænset til polyesterharpikser, epoxyharpikser, urethanharpik-ser, siliconegummi og lignende materialer. I almindelighed omdannes flerkomponentmaterialet ved rumtemperatur fra en flydende fase til en fast fase ved tilsætning af en hensigtsmæssig katalysator eller et hensigtsmæssigt hærdningsmiddel. Polyesterharpikser kan hærde.s ved tilsætning af en peroxidkatalysator og en naphthenat- eller anilinaktivator. Epoxyer kan hærdes ved tilsætning af en hensigtsmæssig amin eller et anhydridhærdende middel. Uretlianer kan opnås ved tilsætning af en hensigtsmæssig iso-cyanatester til en polyesterharpiks. Siliconegummi kan fås ved tilsætning af en hensigtsmæssig tinsæbe til en siliconeelastomer.It should be noted that the mixing valve disclosed herein can be used to spray most multi-component materials including, but not limited to, polyester resins, epoxy resins, urethane resins, silicone rubber and similar materials. In general, the multicomponent material is converted at room temperature from a liquid phase to a solid phase by the addition of a suitable catalyst or a suitable curing agent. Polyester resins can be cured by the addition of a peroxide catalyst and a naphthenate or aniline activator. Epoxies can be cured by the addition of a suitable amine or anhydride curing agent. Clock lianes can be obtained by adding a suitable isocyanate ester to a polyester resin. Silicone rubber can be obtained by adding an appropriate tin soap to a silicone elastomer.
Claims (2)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23674072A | 1972-03-21 | 1972-03-21 | |
| US23674072 | 1972-03-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK141837B true DK141837B (en) | 1980-06-30 |
| DK141837C DK141837C (en) | 1980-11-10 |
Family
ID=22890756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK121973AA DK141837B (en) | 1972-03-21 | 1973-03-06 | Fluid mixing valve, especially for mixing air with a catalyst. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US3763876A (en) |
| JP (1) | JPS5321523B2 (en) |
| AT (1) | AT326088B (en) |
| AU (1) | AU461411B2 (en) |
| BE (1) | BE794522A (en) |
| CA (1) | CA976211A (en) |
| DK (1) | DK141837B (en) |
| FR (1) | FR2177285A5 (en) |
| GB (1) | GB1421205A (en) |
| IT (1) | IT976132B (en) |
| SE (1) | SE402719B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2519266B1 (en) * | 1982-01-06 | 1986-12-19 | Pivaudran Sarl Ets G | DEVICE FOR MIXING AND DISPENSING DOSE OF A PRODUCT AND APPLICATION FOR DISPENSING GLUES, IN PARTICULAR BASED ON EPOXIDE RESIN |
| GB2157591B (en) | 1984-04-19 | 1987-11-25 | Spraying Systems Co | Air-assisted spray nozzle |
| US4760956A (en) * | 1986-07-14 | 1988-08-02 | Glas-Craft, Inc. | Internal mix plural component system |
| US4967956A (en) * | 1987-07-31 | 1990-11-06 | Glas-Craft, Inc. | Multi-component spraying system |
| US4824017A (en) * | 1986-07-14 | 1989-04-25 | Glas-Craft, Inc. | External mix spraying system |
| US4813817A (en) * | 1987-03-13 | 1989-03-21 | Triten Corporation | Plug valve |
| US4846404A (en) * | 1988-01-29 | 1989-07-11 | Graves Spray Supply, Inc. | Internal mix spray gun cartridge |
| CN109433443B (en) * | 2018-11-30 | 2020-06-30 | 河海大学 | Sand solidification device based on unmanned aerial vehicle and control method |
| US11964300B2 (en) * | 2019-02-08 | 2024-04-23 | Polyglass S.P.A. | Process and device for quick dry and or rapid set aqueous external coatings |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1964080A (en) * | 1933-01-11 | 1934-06-26 | John C Purdie | Spraying device |
| GB572841A (en) * | 1943-06-30 | 1945-10-25 | The Bahnson Company | |
| US2688339A (en) * | 1950-05-11 | 1954-09-07 | Fred H Dexter | Dispensing mixing valve |
| US2842399A (en) * | 1955-11-14 | 1958-07-08 | Strahman Valves Inc | Hosing apparatus |
| US2903009A (en) * | 1956-01-12 | 1959-09-08 | Tacchi Percy George | Valves for mixing fluids at different temperatures |
-
0
- BE BE794522D patent/BE794522A/en unknown
-
1972
- 1972-03-21 US US00236740A patent/US3763876A/en not_active Expired - Lifetime
- 1972-12-20 IT IT71020/72A patent/IT976132B/en active
-
1973
- 1973-01-16 CA CA161,407A patent/CA976211A/en not_active Expired
- 1973-01-22 AU AU51310/73A patent/AU461411B2/en not_active Expired
- 1973-01-22 FR FR7302115A patent/FR2177285A5/fr not_active Expired
- 1973-03-06 DK DK121973AA patent/DK141837B/en unknown
- 1973-03-14 SE SE7303577A patent/SE402719B/en unknown
- 1973-03-21 GB GB1369273A patent/GB1421205A/en not_active Expired
- 1973-03-21 AT AT248973A patent/AT326088B/en not_active IP Right Cessation
- 1973-03-22 JP JP3302673A patent/JPS5321523B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE794522A (en) | 1973-05-16 |
| AU461411B2 (en) | 1975-05-22 |
| DE2312935B2 (en) | 1976-08-12 |
| GB1421205A (en) | 1976-01-14 |
| DK141837C (en) | 1980-11-10 |
| AT326088B (en) | 1975-11-25 |
| JPS4913725A (en) | 1974-02-06 |
| ATA248973A (en) | 1975-02-15 |
| IT976132B (en) | 1974-08-20 |
| CA976211A (en) | 1975-10-14 |
| US3763876A (en) | 1973-10-09 |
| FR2177285A5 (en) | 1973-11-02 |
| SE402719B (en) | 1978-07-17 |
| DE2312935A1 (en) | 1973-09-27 |
| AU5131073A (en) | 1974-07-25 |
| JPS5321523B2 (en) | 1978-07-03 |
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