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EP2478964A2 - Buse perfectionnée pour pistolet à peinture et dérivés avec transfert de fluides - Google Patents

Buse perfectionnée pour pistolet à peinture et dérivés avec transfert de fluides Download PDF

Info

Publication number
EP2478964A2
EP2478964A2 EP10808007A EP10808007A EP2478964A2 EP 2478964 A2 EP2478964 A2 EP 2478964A2 EP 10808007 A EP10808007 A EP 10808007A EP 10808007 A EP10808007 A EP 10808007A EP 2478964 A2 EP2478964 A2 EP 2478964A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
catalyst
air
outlet
resin
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.)
Granted
Application number
EP10808007A
Other languages
German (de)
English (en)
Other versions
EP2478964B1 (fr
EP2478964A4 (fr
Inventor
Ricardo Verdu Alvaro
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Valver Air Speed SL
Original Assignee
Valver Air Speed SL
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Valver Air Speed SL filed Critical Valver Air Speed SL
Priority to PL10808007T priority Critical patent/PL2478964T3/pl
Publication of EP2478964A2 publication Critical patent/EP2478964A2/fr
Publication of EP2478964A4 publication Critical patent/EP2478964A4/fr
Application granted granted Critical
Publication of EP2478964B1 publication Critical patent/EP2478964B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
    • B05B1/042—Outlets having two planes of symmetry perpendicular to each other, one of them defining the plane of the jet
    • 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
    • B05B7/06—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane
    • B05B7/061—Spray pistols; Apparatus for discharge with at least one outlet orifice surrounding another approximately in the same plane with several liquid outlets discharging one or several liquids
    • 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
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0815—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with at least one gas jet intersecting a jet constituted by a liquid or a mixture containing a liquid for controlling the shape of the latter
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0869—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point the liquid or other fluent material being sucked or aspirated from an outlet orifice by another fluid, e.g. a gas, coming from another outlet orifice
    • 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
    • B05B7/08—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point
    • B05B7/0807—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets
    • B05B7/0846—Spray pistols; Apparatus for discharge with separate outlet orifices, e.g. to form parallel jets, i.e. the axis of the jets being parallel, to form intersecting jets, i.e. the axis of the jets converging but not necessarily intersecting at a point to form intersecting jets with jets being only jets constituted by a liquid or a mixture containing a liquid

Definitions

  • the present improved nozzle for spray guns intended for paints and derivatives based on fluid transfer relates to a device designed for covering all types of spraying technologies, including airbrush, airmix, airless, or electrostatic technology within the range of low, mid and high pressure, by means of the precise channeling of pressurized air lines and formation of mixture outside the head of the nozzle.
  • This system involves a series of drawbacks like that of mixing inside the spray gun itself, or including, prior to its passage through the spray guns, the catalyzed mixture travels through the holes and mechanisms of the spray guns, blocking and damaging valves, passages, etc., and leading to an irregular projection.
  • the brand Binks markets a spray gun which places an air outlet in the nozzle, directed towards the outside thereof, such that the resin is projected on one side, the catalyst on another for mixing and independently the air, such that the spraying is performed in a space in front of the nozzle in the direction of the projection.
  • this nozzle has a single unsprayed catalyst propeller from one of the sides of the resin jet, therefore the final sprayed mixture does not assure a complete homogeneity.
  • the improved nozzle for spray guns intended for paints made up of two components and derivatives based on fluid transfer, object of the present invention intends to improve the drawbacks described above, to that end, it has a head with several air crests for projecting the different components forming the sprayed cloud and several air outlets meeting the projection of the previous components at a point in front of said head, an external mixing of resin and catalyst thus being performed.
  • the exit of the catalyst, the resin, the pressurized air and any other of the components if any, is achieved by several independent holes such that all the components are injected in unison by tightening the trigger and a sprayed mixture cloud is created outside the nozzle.
  • All the pressurized air and catalyst lines are machined in the nozzle itself, with the outlets thereof in the air crests on both sides of the central outlet hole of the resin, directed towards a point where all the components converge outside of the spray gun.
  • each of the outlets of the nozzle is regulated in flow and pressure, which favors the regulation of the mixture and its use depending on the intended finish and the nature of the components.
  • a fresher mixture with less mixture property loss since it is mixed at the time of use is provided at all times. It also allows the use of products of 2 instant reaction components which could not be performed in otherwise non-manual manner.
  • the proposed nozzle involves a better performance and use of the products since there is no remaining product, i.e., only the needed amount of product is used. It further facilitates quicker color changes without solvent consumption.
  • this nozzle does not require cleaning since the components are never mixed inside, whereby the use of cleaning solvents and the emission of gases is prevented, not generating toxic and dangerous wastes.
  • a nozzle (7) body is distinguish, where the air crests (8) having part of the air and catalyst outlet holes of the nozzle are located.
  • Other emissions such as resin, are in turn produced from the central area which is the product outlet (9).
  • the resin fluids and the catalyst or other components are mixed outside the nozzle, right at the time of use.
  • the nozzle (7) incorporates an inlet for the catalyst (1), connecting with a series of internal channels through where the catalyst flow circulates, which internal channels end by means of catalyst outlet holes (2), on the outer surface thereof, the catalyst projecting towards the resin flow exiting through the hole (9) being mixed with the latter outside.
  • the nozzle (7) incorporates pressurized air inlet channels (4), conveying the air through the inside of the nozzle and they end in different elements at the outer surface of the nozzle, these elements are made up on one hand of outlets (5), in a first phase, for spraying the resin fan and on the other hand of outlets (3), in a second phase, for spraying the cloud of the catalyst, both phases are mixed in a synchronized manner outside the nozzle (7).
  • the element generating the cloud which sprays the catalyst (3) is formed by a plurality of holes surrounding that of the catalyst (2) outlet, spraying the catalyst.
  • Said element (3) can also be formed by longitudinal grooves or the like.
  • the element generating this spraying cloud (3) can also be formed by holes or grooves which are directly connected with the outside of the nozzle (6), for the purpose of obtaining an extra air supply from the outside by Venturi effect, to achieve a better spraying.
  • the air crests (8) protrude from the plane of the nozzle and are arranged in the manner favoring the formation of the sprayed cloud of the component and air mixture.
  • the catalyst is externally connected to the line (1), and it will be activated by means of an external valve by pressing the trigger, or by a electric-pneumatic signal if it is an automatic spray gun, such that the catalyst travels through the internal channel to the outlet (2) which, similar to that of the air (3), may also be formed by grooves or the like.
  • the latter is projected through the holes (2) such that its projection meets at that of the product or resin, or in the vicinity thereof.
  • the air also flows from the element (3) towards the same meeting point, whereby the product is on one hand sprayed with the air of the element (5) and the catalyst with that of the element (3), this situation favoring a very diffused mixture cloud as a result of the amount of air received and the dispersion and incidence on the main jet obtained by arranging the spouts forming both the elements (3) and (5).
  • the nozzle (7) is provided with a series of non-pressurized holes (6) which are shown, on one hand, communicated with the outside and on the other in communication with the pressurized air supply lines to the element of the second phase (3) for supplying air to the catalyst or to the element of the first phase (5) for supplying air to the resin.
  • These outer holes (6) lie in that they enable the entrance of air from the outside, as an extra supply when the spray gun and the elements of the second phase (3) or first phase (5) are active by the Venturi effect, by pulling the outside air caused by the exit through the element (3) or (5). A better spraying due to an extra injection of air flow without additional energy consumption thus being achieved.
  • This Venturi effect can also be applied to single-component spray guns where only product is sprayed through the outlet (9) improving the spraying.
  • the holes of the second phase (3) would be void, since the catalyst outlet hole (2) would not be operational.

Landscapes

  • Nozzles (AREA)
EP10808007.8A 2009-08-11 2010-08-05 Buse perfectionnée pour pistolet à peinture et dérivés avec transfert de fluides Active EP2478964B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10808007T PL2478964T3 (pl) 2009-08-11 2010-08-05 Ulepszona dysza do pistoletów natryskowych przeznaczonych do farb i pochodnych oparta na transferze płynu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200901761A ES2359198B1 (es) 2009-08-11 2009-08-11 Boquilla perfeccionada para pistola de pinturas y derivados por transferencia de fluidos.
PCT/ES2010/000351 WO2011018538A2 (fr) 2009-08-11 2010-08-05 Buse perfectionnée pour pistolet à peinture et dérivés avec transfert de fluides

Publications (3)

Publication Number Publication Date
EP2478964A2 true EP2478964A2 (fr) 2012-07-25
EP2478964A4 EP2478964A4 (fr) 2013-08-14
EP2478964B1 EP2478964B1 (fr) 2018-10-17

Family

ID=43586565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10808007.8A Active EP2478964B1 (fr) 2009-08-11 2010-08-05 Buse perfectionnée pour pistolet à peinture et dérivés avec transfert de fluides

Country Status (6)

Country Link
EP (1) EP2478964B1 (fr)
ES (2) ES2359198B1 (fr)
PL (1) PL2478964T3 (fr)
PT (1) PT2478964T (fr)
TR (1) TR201821069T4 (fr)
WO (1) WO2011018538A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4659864A1 (fr) * 2024-06-05 2025-12-10 Graco Minnesota Inc. Capuchon à air pour pistolet de pulvérisation de fluide

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2646314A (en) * 1950-10-19 1953-07-21 Vilbiss Co Spray nozzle
GB766088A (en) * 1954-03-29 1957-01-16 Devilbiss Co Spray gun
ES163335Y (es) * 1970-11-14 1972-03-01 Sanchez Larrauri Alejandro Mejoras introducidas en las boquillas aplicables a pistolas de pintar
BE793319A (fr) * 1971-12-28 1973-06-27 Ciba Geigy Distributeur aerosol pour produits fluides
ES204709Y (es) * 1974-07-16 1976-05-01 W. Navarro Mercury, S. A. Pistola aerografica perfeccionada.
FR2595059B1 (fr) * 1986-02-28 1988-06-17 Sames Sa Dispositif de pulverisation de liquide
US4830279A (en) * 1987-09-21 1989-05-16 Nordson Corporation Flat spray nozzle for a spray gun
ES1004653Y (es) * 1988-03-07 1989-03-16 Buifa, S.A. Pulverizador perfeccionado para atomizadores.
FR2636252B1 (fr) * 1988-09-13 1991-02-08 Sames Machine Electrostatique Dispositif de pulverisation pneumatique de liquide, a jet pulverise plat
ES2070717B1 (es) * 1993-03-11 1997-11-01 Sagola Sa Pistola aerografica perfeccionada de reducida presion.
US5419491A (en) * 1994-05-23 1995-05-30 Mattson Spray Equipment, Inc. Two component fluid spray gun and method
US5639027A (en) * 1994-12-08 1997-06-17 Ransburg Corporation Two component external mix spray gun
TWM255079U (en) * 2004-04-13 2005-01-11 Shing-Tz Wang Air paint spraying gun with high adhesion and low contamination
EP1880771B1 (fr) * 2006-07-22 2009-02-11 J. Wagner GmbH Pistolet de pulvérisation
DE202009001815U1 (de) * 2009-02-12 2009-04-30 Bersch & Fratscher Gmbh Hochdruck Farbspritzpistole mit Luftunterstützung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4659864A1 (fr) * 2024-06-05 2025-12-10 Graco Minnesota Inc. Capuchon à air pour pistolet de pulvérisation de fluide

Also Published As

Publication number Publication date
TR201821069T4 (tr) 2019-01-21
PL2478964T3 (pl) 2019-06-28
ES2703397T3 (es) 2019-03-08
EP2478964B1 (fr) 2018-10-17
WO2011018538A3 (fr) 2011-07-14
EP2478964A4 (fr) 2013-08-14
WO2011018538A2 (fr) 2011-02-17
ES2359198A1 (es) 2011-05-19
PT2478964T (pt) 2019-01-28
ES2359198B1 (es) 2012-04-24

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