EP3269454B2 - Lenkluftring mit mindestens drei serien von verschiedenen luftausstossdüsen, drehzerstäuber für ein beschichtungsprodukt mit einer solchem ring, und beschcichtungsverfahren - Google Patents

Lenkluftring mit mindestens drei serien von verschiedenen luftausstossdüsen, drehzerstäuber für ein beschichtungsprodukt mit einer solchem ring, und beschcichtungsverfahren Download PDF

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Publication number
EP3269454B2
EP3269454B2 EP17180567.4A EP17180567A EP3269454B2 EP 3269454 B2 EP3269454 B2 EP 3269454B2 EP 17180567 A EP17180567 A EP 17180567A EP 3269454 B2 EP3269454 B2 EP 3269454B2
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EP
European Patent Office
Prior art keywords
nozzles
primary
air
series
jet
Prior art date
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Application number
EP17180567.4A
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English (en)
French (fr)
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EP3269454A1 (de
EP3269454B1 (de
Inventor
Cyrille MEDARD
Sylvain Perinet
Philippe Provenaz
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Exel Industries SA
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Exel Industries SA
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Application filed by Exel Industries SA filed Critical Exel Industries SA
Priority to PL17180567T priority Critical patent/PL3269454T3/pl
Publication of EP3269454A1 publication Critical patent/EP3269454A1/de
Publication of EP3269454B1 publication Critical patent/EP3269454B1/de
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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
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to 3D-surfaces
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1092—Means for supplying shaping gas
    • 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
    • B05B1/005—Nozzles or other outlets specially adapted for discharging one or more gases
    • 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
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1007—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member
    • B05B3/1014—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
    • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
    • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
    • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
    • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1064—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft

Definitions

  • the present invention relates to a skirt for a rotating coating product sprayer, of the type comprising a plurality of air ejection nozzles made in said skirt to eject jets of air forming shaping air adapted to shape the jet of coating product, said air ejection nozzles comprising at least a series of nozzles consisting of a plurality of air ejection nozzles fluidly connected to a common supply chamber specific to said series of nozzles.
  • a rotary projector for projecting coating product comprises a spray member rotating at high speed under the effect of a rotational drive system, such as a compressed air turbine.
  • Such a spray member generally has the shape of a bowl with symmetry of revolution and it comprises at least one spray edge capable of forming a jet of coating product.
  • the rotary sprayer also comprises a fixed body housing the rotation drive system as well as means for supplying the spray member with coating product.
  • the jet of coating product sprayed by the edge of the rotating member has a generally conical shape which depends on parameters such as the speed of rotation of the bowl and the flow rate of coating product.
  • the rotary sprayers of the prior art are generally equipped with several air ejection nozzles formed in a skirt covering the body of the sprayer and arranged on a circle which is centered on the axis of symmetry of the bowl and which is located on the outer periphery of the bowl.
  • the air ejection nozzles are intended to emit jets of air which together form air for shaping the jet of product.
  • This shaping air which is sometimes referred to as “skirt air”, makes it possible to shape the jet of product, in particular to adjust the width of this jet, depending on the desired application.
  • Such a rotating projector is known for example from EP 2 328 689 .
  • a drawback of known rotary projectors is that they do not allow the product jet width to be varied over a large amplitude without changing the skirt.
  • the jet width variation is thus generally of an amplitude of between 50 and 300 mm or between 300 and 500 mm. If it is desired to be able to cover the entire spectrum ranging from 50 to 500 mm, it is necessary to change the skirt, which requires complex operations and in particular the prior stopping of the rotary projector.
  • Known rotary projectors do not allow this flexibility, the production lines used in the automotive industry generally incorporate two paint booths: a first, dedicated to painting the interiors of bodywork, comprising a paint projector adapted to make a width of narrow jet, and a second, dedicated to painting exterior bodywork, comprising a paint sprayer adapted to make a wide jet width.
  • This double equipment in paint booths is expensive, both in terms of machine equipment and building space and energy required to operate the installation.
  • An object of the invention is thus to make it possible, with the same rotary projector, to project a coating product either in a wide jet or in a narrow jet, without having to change the skirt of the rotary projector.
  • the subject of the invention is a skirt for a rotary headlamp of the aforementioned type, according to claim 1.
  • the invention also relates to a rotary sprayer for coating product comprising at least one member for spraying the coating product, a drive system for driving the first sprayer member in rotation around an axis, and a fixed skirt , the skirt being constituted by a skirt as described above, and each of the supply chambers being formed in the rotary projector.
  • Another subject of the invention is a robot sprayer comprising an articulated arm, a wrist mounted at one end of the articulated arm, and a rotary projector attached to the wrist, in which the rotary projector is a rotary projector as described above.
  • the invention also relates to a covering method according to claim 10.
  • the coating installation 2 shown in the Figure 1 is intended for spraying a coating product on a surface to be coated. It comprises, in a known manner, a multi-axis sprayer robot 4 and an electro-pneumatic control cabinet 6 for controlling the robot 4.
  • the sprayer robot 4 comprises an articulated arm 8, a wrist 9 mounted at one end of the articulated arm 8, and a rotating projector 10 attached to the wrist 9.
  • the rotary projector 10 comprises a spray member 12, a body 14, a system 16 for driving the spray member 12 in rotation around an axis AA' relative to the body 14, a system 18 for feeding of the spray member 12 with coating product, and a skirt 20 covering the outside of the body 14.
  • upstream and downstream are to be understood in reference to the direction of flow of the coating product through the rotary projector 10.
  • the spray member 12 has a symmetry of revolution, that is to say there is an axis, referred to as the axis of the first spray member, such that any image of the spray member 12 obtained by rotation of the spray member 12 around said axis, whatever the angle of this rotation, is identical to the spray member 12.
  • the spray member 12 has a distribution surface 22, oriented towards the axis of the first spray member, which widens from a bottom 24 of the spray member 12, close to the body 14, to an edge spray 26, remote from the body 14 and defining a downstream end of the spray member 12 opposite the body 14.
  • Edge 26 is substantially circular and has a diameter, referred to below as “diameter of spray member 12”.
  • Spray member 12 also has an outer surface 28 oriented away from the axis of the first spray member. This outer surface 28 also flares out, in the example shown, from the bottom 24 to the edge 26.
  • the spray member 12 thus has the general shape of a bowl and will therefore be designated in the rest under the term "bol".
  • the bottom 24 has an orifice 30 for introducing the coating product, fluidly connected to the system supply 18.
  • a distributor 31 is secured to the bowl 12, facing the orifice 30, so as to channel and distribute the coating product on the distribution surface 22.
  • the bowl 12 is mounted on the body 14 so that its axis is substantially coaxial with the axis of rotation AA' and so as to be connected to the drive system 16, so that the system drive 16 can drive the bowl 12 in rotation around the axis A-A'.
  • the bowl 12 is connected to the drive system 16 by means of a reversible connecting member (not shown) identical to that described in the patent FR 2 868 342 .
  • the bowl 12 is a mixed spraying member, that is to say suitable for spraying the coating product both in a wide jet and in a narrow jet.
  • the diameter of bowl 12 is preferably between 30 and 90 mm, advantageously between 50 and 65 mm.
  • the bowl 12 is suitable only for spraying the coating product in a narrow jet.
  • the rotary projector 10 then also comprises a second spraying member, separate from the body 14 and identical to the bowl 12 except for its diameter which, for this second spraying member, is greater than the diameter of the bowl 12.
  • the body 14 is attached to the wrist 9 of the sprayer robot 4.
  • the drive system 16 is typically formed by a compressed air turbine. Alternatively, the drive system 16 is formed by an electric motor.
  • the supply system 18 is fluidically connected to a source (not shown) of coating product, typically consisting of a paint, and is adapted to drive this coating product to the introduction orifice 30 of the bowl 12.
  • the skirt 20 is fixed relative to the body 14 and at least partially covers an outer surface of the body 14. Furthermore, in the example shown, the skirt 20 radially surrounds the bottom 24 of the bowl 12, so that the bowl 12 is partially inserted into the skirt 20.
  • the skirt 20 has a plurality of air ejection nozzles 40, 42, 44, 46 made in said skirt 20.
  • Each nozzle 40, 42, 44, 46 is formed in a flat radial surface 32 of said skirt 20.
  • This radial surface 32 is, in the example shown, common to all the nozzles 40, 42, 44, 46, and forms a downstream end of the skirt 20.
  • at least one of the nozzles 40, 42, 44, 46 is formed in a radial surface axially offset relative to another radial surface in which is formed at least one other of the nozzles 40, 42, 44, 46.
  • At least one of the nozzles 40, 42, 44, 46 is provided on any three-dimensional surface of revolution around A-A'.
  • the air ejection nozzles 40, 42, 44, 46 fluidly communicate with air supply chambers 40A, 42A, 44A, 46A of said air ejection nozzles 40, 42, 44, 46, each formed in the rotary projector 10.
  • each of these supply chambers 40A, 42A, 44A, 46A is, in the example shown, formed in the skirt 20.
  • at least one of these supply chambers 40A , 42A, 44A, 46A is formed at the interface between the skirt 20 and the body 14.
  • at least one of these supply chambers 40A, 42A, 44A, 46A is formed in the body 14.
  • Each air ejection nozzle 40, 42, 44, 46 preferably consists of a through orifice formed in the skirt 20.
  • this through orifice opens, via a first end, into the radial surface 32 , and, via a second end, in the air supply chamber 40A, 42A, 44A, 46A of said air ejection nozzle 40, 42, 44, 46.
  • each ejection nozzle of air 40, 42, 44, 46 consists of an element attached to the skirt 20.
  • the air ejection nozzles 40, 42, 44, 46 comprise four series of separate nozzles 41, 43, 45, 47, each series of nozzles, respectively 41, 43, 45, 47, being constituted by a plurality of nozzles , respectively 40, 42, 44, 46, fluidly connected to a common supply chamber, respectively 40A, 42A, 44A, 46A, specific to said series of nozzles 41, 43, 45, 47.
  • the series of nozzles 41, 43 , 45, 17 thus comprise a first series of primary nozzles 41, consisting of first primary nozzles 40 fluidically connected to a first primary chamber 40A, a first series of secondary nozzles 43, consisting of first secondary nozzles 42 fluidically connected to a first secondary chamber 42A, a second series of primary nozzles 45, consisting of second primary nozzles 44 fluidly connected to a second primary chamber 44A, and a second series of secondary nozzles 47, consisting of second secondary nozzles 46 fluidically connected to a second chamber secondary 46A.
  • first primary and secondary nozzles 40, 42 are, in the example shown, arranged on an inner ring 50, and the second primary and secondary nozzles 44, 46 are arranged on an outer ring 52.
  • the first primary and secondary nozzles 40 , 42 will therefore in the following also be referred to as “inner air ejection nozzles”, and the second primary and secondary nozzles 44, 46 will also be referred to as “outer air ejection nozzles”.
  • the inner and outer rings 50, 52 are substantially concentric and both have the axis of rotation A-A' as their center.
  • the inner crown 50 is placed inside a separation perimeter 54 and the outer crown 50 is placed outside this separation perimeter 54, so that the outer ring 52 radially surrounds the inner ring 50.
  • the perimeter of separation 54 is convex, that is to say that, for any pair of points belonging to the perimeter 54, there is no point of the perimeter 54 interposed between the segment of chord connecting said two points and the axis A-A'.
  • the separation perimeter 54 is, as shown, substantially circular.
  • the separation perimeter 54 is substantially centered on the axis A-A'.
  • Each of the inner and outer rings 50, 52 is delimited, on the side of the axis A-A', by an inner perimeter and, on the side opposite the axis A-A', by an outer perimeter.
  • the separation perimeter 54 constitutes the outer perimeter of the inner ring 50, and the inner perimeter of the outer ring 52.
  • the inner perimeter 56 of the inner ring 50 is formed by a convex perimeter flush with at least a part of the ejection nozzles interior air vents 40, 42; it is preferably circular.
  • the outer perimeter 58 of the outer ring 52 is constituted by a convex perimeter flush with at least a part of the outer air ejection nozzles 44, 46; it is preferably also circular.
  • Each of the air ejection nozzles 40, 42, 44, 46 is at a distance from the axis of rotation A-A', taken as the distance from the center of the nozzle 40, 42, 44, 46 to l 'axis of rotation A-A', greater than or equal to the half-diameter of the edge 26.
  • the inner crown 50 has a minimum radial distance d from the axis of rotation A-A', constituted by the distance minimum radial from the inner perimeter 56 to the axis of rotation A-A', greater than or equal to the half-diameter of the edge 26 of the bowl 12.
  • Each of the first primary nozzles 40 is adapted to eject a first primary air jet along a first primary direction defined by a first primary unit vector 60 having a first primary axial component 60A, a first primary radial divergence component 60B, and a first primary orthoradial component 60C.
  • unit vector it is understood that the vector 60 has a norm, equal to the square root of the sum of the squares of the axial 60A, radial 60B and orthoradial 60C divergence components, substantially equal to 1, some of said components 60A, 60B, 60C may be zero.
  • the radial divergence component 60B is a relative value counted positively when the vector 60 is oriented away from the axis of rotation A-A', and negatively when the vector 60 is oriented towards the axis of rotation A-A '.
  • the first primary axial and orthoradial components 60A, 60C are each non-zero.
  • the diameter of the orifices constituting the first primary nozzles 40 is between 0.5 and 1.2 mm.
  • Each of the first secondary nozzles 42 is adapted to eject a first jet of secondary air along a first secondary direction defined by a first secondary unit vector 62 having a first primary axial component 62A, a first primary radial divergence component 62B, and a first primary orthoradial component 62C.
  • the first secondary direction is different from the first primary direction, that is to say that at least one of said components 62A, 62B, 62C of the first secondary unit vector 62 is different from the component 60A, 60B, 60C of the first vector primary unit 60 corresponding.
  • the first secondary orthoradial component 62C is lower than the first primary orthoradial component 60C.
  • the first secondary orthoradial component 62C is chosen so that the angle formed in an orthoradial plane between the first secondary unit vector 66 and the axial direction passing through the first secondary nozzle 42 is less than 30°.
  • the positions of the first primary nozzles 40 and of the first secondary nozzles 42, as well as the components 60A, 60B, 60C of the first primary unit vector 60 and the components 62A, 62B, 62C of the first secondary unit vector 62, are chosen so that the first primary and secondary directions are substantially secant to each other in a first region of intersection (not shown) located upstream of the edge 26
  • the diameter of the orifices constituting the first secondary nozzles 42 is between 0.5 and 1.2 mm.
  • the first primary and secondary nozzles 40, 42 are arranged alternately with respect to each other, that is to say that, for any pair of adjacent first primary nozzles 40, there is a first secondary nozzle 42 interposed angularly between said nozzles 40, and vice versa.
  • the first primary and secondary nozzles 40, 42 are thus in equal numbers.
  • the first primary and secondary nozzles 40, 42 are arranged on different contours 61, 63, said contours 61, 63 being substantially centered on the axis AA′ and being homothetic to one another, the first primary nozzles 40 being offset radially towards the axis AA' with respect to the first secondary nozzles 42.
  • the first primary and secondary nozzles 40, 42 are arranged on the same contour 68, substantially centered on the axis A-A', as in the second embodiment.
  • Each of the second primary nozzles 44 is adapted to eject a second jet of primary air along a second primary direction defined by a second primary unit vector 64 having a second primary axial component 64A, a second primary radial divergence component 64B, and a second primary orthoradial component 64C.
  • the second primary axial and orthoradial components 64A, 64C are each non-zero.
  • the diameter of the orifices constituting the second primary nozzles 44 is between 0.5 and 1.2 mm.
  • Each of the second secondary nozzles 46 is adapted to eject a second jet of secondary air along a second secondary direction defined by a second secondary unit vector 66 having a second secondary axial component 66A, a second secondary radial divergence component 66B, and a second secondary orthoradial component 66C.
  • the second secondary direction is different from the second primary direction, that is to say that at least one of the components 66A, 66B, 66C of the second secondary unit vector 66 is different from the component 64A, 64B, 64C of the second vector primary unit 64 corresponding.
  • the second secondary orthoradial component 66C is lower than the second primary orthoradial component 64C.
  • the second secondary orthoradial component 66C is chosen so that the angle formed in an orthoradial plane between the second secondary unit vector 66 and the axial direction passing through the second secondary nozzle 46 is less than 30°.
  • the positions of the second primary nozzles 44 and of the second secondary nozzles 46, as well as the components 64A, 64B, 64C of the second primary unit vector 64 and the components 66A, 66B, 66C of the second secondary unit vector 66, are chosen so that the second primary and secondary directions are substantially secant to each other in a second intersection region (not shown) located upstream of the edge 26.
  • the second primary and secondary nozzles 44, 46 are arranged alternately with respect to each other, that is to say that, for any pair of adjacent second primary nozzles 44, there is a second secondary nozzle 46 interposed angularly between said nozzles 44, and vice versa.
  • the second primary and secondary nozzles 44, 46 are thus in equal numbers.
  • the number of outer air ejection nozzles 44, 46 is greater than or equal to the number of inner air ejection nozzles 40, 42.
  • the diameter of the orifices constituting the second secondary nozzles 66 is between 0.5 and 1.2 mm.
  • the second primary and secondary nozzles 44, 46 are arranged on different contours 65, 67, said contours 65, 67 being substantially centered on the axis A-A' and being dilatations of one of the another, the second primary nozzles 44 being offset radially towards the axis A-A' with respect to the second secondary nozzles 46.
  • the second primary and secondary nozzles 44, 46 are arranged on the same contour 69, substantially centered on the axis A-A', as in the second embodiment.
  • the first series of primary nozzles 41 and the first series of secondary nozzles 43 together constitute a first pair of series 48 adapted so that, when said series 41, 43 are simultaneously supplied with air, the first jets of air ejected by the nozzles 40 , 42 constituting these series 41, 43 together form a first shaping air adapted to shape the spray of coating product in a narrow manner.
  • the second series of primary nozzles 45 and the second series of secondary nozzles 47 they together constitute a second pair of series 49 adapted so that, when said series 45, 47 are simultaneously supplied with air, the second air jets ejected by the nozzles 44, 46 constituting these series 45, 47 together form a second shaping air adapted to shape the jet of coating product in a wide manner.
  • the first and second primary directions are different, that is to say that at least one of the components 64A, 64B, 64C of the second primary unit vector 64 is different from the component 60A, 60B, 60C of the first corresponding primary unit vector 60.
  • the second primary orthoradial component 64C is greater than the first primary orthoradial component 60C
  • the second primary radial divergence component 64B is greater than the first primary radial divergence component 60B.
  • the first primary orthoradial component 60C is chosen so that the angle formed in an orthoradial plane between the first primary unit vector 60 and the axial direction passing through the first primary nozzle 40 is between 20° and 50°, preferably between 35° and 45°, the first component of primary radial divergence 60B being chosen so that the angle formed in a radial plane between the first primary unit vector 60 and the radial direction passing through the first primary nozzle 40 is substantially equal to 90°, whereas the second primary orthoradial component 64C is chosen so that the angle formed in an orthoradial plane between the second primary unit vector 64 and the axial direction passing through the second primary nozzle 44 is between 40° and 80° , preferably between 50° and 60°, the second primary radial divergence component 64B being chosen so that the angle formed in a radial plane between the second primary unit vector 64 and the radial direction passing through the second primary nozzle 44 is less than 85° and preferably between 75° and 85°.
  • the coating installation 2 comprises, as shown in the Figures 5 to 8 a system 70 for supplying the nozzles 40, 42, 44, 46 with air.
  • This supply system 70 comprises, according to a first example of embodiment represented on the Figures 5 to 8 , an air source 72, a primary route 74 for supplying the primary air nozzles 40, 44 with air, specific to said primary air nozzles 40, 44, a secondary route 76 for supplying the air nozzles secondary air nozzles 42, 46, specific to said secondary air nozzles 42, 46, a first primary valve 80 for regulating the supply of the first primary nozzles 40 with air, a first secondary valve 82 for regulating the supply of the first secondary nozzles 42 in air, a second primary valve 84 for regulating the supply of the second primary nozzles 44 with air, and a second secondary valve 86 for regulating the supply of the second secondary nozzles 46 with air.
  • the air source 72 is typically constituted by an air compressor.
  • the primary channel 74 comprises a first primary branch 90 specific to the first primary nozzles 40 and a second primary branch 94 specific to the second primary nozzles 44.
  • the first primary branch 90 is equipped with the first primary valve 80 so that said valve 80 regulates the flow of air circulating in the first primary branch 90.
  • the second primary branch 94 is equipped with the second primary valve 84 so that said valve 84 regulates the flow of air circulating in the second primary branch 94.
  • the primary channel 74 is made up of said specific branches 90, 94.
  • Each of the valves 80, 84 is then made up of a variable valve.
  • the primary channel 74 also comprises a branch 91 common to all the primary air nozzles 40, 44, extending between the source 72 and each of the specific branches 90, 94.
  • This common branch 91 is equipped with a primary valve joint 93, preferably constituted by a variable valve, adapted to regulate the flow of air circulating in the common branch 91.
  • the valves 80, 84 are then constituted by on/off valves. This makes it possible, in comparison with the first variant, to simplify the management of the air supply at the automaton level, to reduce the number of pipes entering the rotary projector 10, and to reduce the hardware and integration cost.
  • the secondary channel 76 comprises a first secondary branch 92 specific to the first secondary nozzles 42 and a second secondary branch 96 specific to the second secondary nozzles 46.
  • the first secondary branch 92 is equipped with the first secondary valve 82 so that said valve 82 regulates the flow of air circulating in the first secondary branch 92.
  • the second secondary branch 96 is equipped with the second secondary valve 86 so that said valve 86 regulates the flow of air circulating in the second secondary branch 96.
  • the secondary channel 76 is made up of said specific branches 92, 96.
  • Each of the valves 82, 86 is then made up of a variable valve.
  • the secondary channel 76 also comprises a branch 95 common to all the secondary air nozzles 42, 46, extending between the source 72 and each of the specific branches 92, 96.
  • This common branch 95 is equipped with a primary valve joint 97, preferably constituted by a variable valve, adapted to regulate the flow of air circulating in the common branch 95.
  • the valves 82, 86 are then constituted by on/off valves. This makes it possible, in comparison with the first variant, to simplify the management of the air supply at the automaton level, to reduce the number of pipes entering the rotary projector 10, and to reduce the hardware and integration cost.
  • valves 80, 82, 84, 86 are preferably integrated into the rotary projector 10, in particular into the skirt 20.
  • the valves 80, 82, 84, 86 are integrated into the articulated arm 8, or into the control cabinet. electro-pneumatic control 6.
  • the coating installation 2 also includes a system 100 for controlling the supply system 70.
  • This control system 100 is suitable for controlling each of the valves 80, 82, 84, 86.
  • the control system 100 preferably comprises two separate control modules 102, 104: a first control module 102 to control the supply of the first air nozzles 40, 42, and a second control module 104 to control the supply of the second air nozzles 44, 46, as in the third variant shown in the Picture 7 .
  • the first control module 102 is then adapted to simultaneously control the valves 80 and 82 but not the valves 84 and 86
  • the second control module 104 is adapted to simultaneously control the valves 84 and 86 but not the valves 80 and 82.
  • Each of the control modules 102, 104 has a connection for a control device (not shown) and is adapted to actuate the valves 80, 82, 84, 86 that it controls when said control device is connected to said connection.
  • the control member is a pneumatic actuator
  • the control module 102, 104 then comprising a pneumatic circuit connecting the connection of said module 102, 104 to the valves 80, 82, 84, 86 controlled by said module 102, 104, said valves 80, 82, 84, 86 then being constituted by pneumatically controlled valves.
  • control member is a hydraulic actuator, the control module 102, 104 then comprising a hydraulic circuit connecting the connection of said module 102, 104 to the valves 80, 82, 84, 86 controlled by said module 102, 104, said valves 80, 82, 84, 86 then being constituted by hydraulically operated valves.
  • control member is an electric actuator, the control module 102, 104 then comprising an electric circuit connecting the connection said module 102, 104 to the valves 80, 82, 84, 86 controlled by said module 102, 104, said valves 80, 82, 84, 86 then being constituted by electrically controlled valves.
  • the piloting system 100 comprises a control module 110, 112, 114, 116 specific to each of the valves 80, 82, 84, 86, as in the second variant represented on the Figure 6 .
  • Each of these control modules, respectively 110, 112, 114, 116, is then adapted to control only one valve, respectively 80, 82, 84, 86.
  • Each of the control modules 110, 112, 114, 116 has a connection for a control device (not shown) and is adapted to actuate the valve 80, 82, 84, 86 that it controls when said control device is connected to said connection.
  • the control member is a pneumatic actuator
  • the control module 110, 112, 114, 116 then comprising a pneumatic circuit connecting the connection of said module 110, 112, 114, 116 to the valve 80, 82, 84, 86 controlled by said module 110, 112, 114, 116, said valve 80, 82, 84, 86 then being constituted by a pneumatically controlled valve.
  • control member is a hydraulic actuator
  • control module 110, 112, 114, 116 then comprising a hydraulic circuit connecting the connection of said module 110, 112, 114, 116 to the valve 80, 82, 84, 86 controlled by said module 110, 112, 114, 116, said valve 80, 82, 84, 86 then being constituted by a hydraulically controlled valve.
  • control member is an electric actuator
  • control module 110, 112, 114, 116 then comprising an electric circuit connecting the connection of said module 110, 112, 114, 116 to the valve 80, 82, 84 , 86 controlled by said module 110, 112, 114, 116, said valve 80, 82, 84, 86 then being constituted by an electrically controlled valve.
  • This variant allows greater flexibility in the control of the valves 80, 82, 84, 86, and therefore in the use of the air nozzles 40, 42, 44, 46, and in particular allows the simultaneous use of the interior nozzles 40 with the primary exterior nozzles 44 and/or the secondary interior nozzles 42 with the secondary exterior nozzles 46 and/or the primary interior nozzles 40 with the secondary exterior nozzles 46 and/or the secondary interior nozzles 42 with the primary exterior nozzles 44 and/ or the primary interior nozzles 40 with the secondary interior nozzles 42 and/or the primary exterior nozzles 44 with the secondary exterior nozzles 46.
  • the supply system 70 differs from the first exemplary embodiment in that it does not include a primary route for supplying the primary air nozzles 40, 44 with air, specific to said nozzles of primary air 40, 44, nor a secondary route for supplying the secondary air nozzles 42, 46 with air, specific to said secondary air nozzles 42, 46, nor a valve specific to each of the series of nozzles 41, 43 , 45, 47.
  • the supply system 70 comprises a first supply channel 120, specific to the first pair of series 48, a second supply channel 122, specific to the second pair of series 49, a first valve 124 to regulate the air supply to the first pair of series 48, and a second valve 126 to regulate the air supply to the second pair of series 49.
  • the first primary channel 120 comprises a first primary branch 130 specific to the first primary nozzles 40 and a first secondary branch 132 specific to the first secondary nozzles 42.
  • the first primary branch 130 is equipped with a first primary flow reducer 140, preferably not adjustable, to reduce the flow in the branch 130 downstream of the flow reducer 140.
  • the first secondary branch 132 is equipped with a first secondary flow reducer 142, preferably non-adjustable, to reduce the flow in the branch 132 downstream of the flow reducer 142.
  • the first channel 120 also includes a first common branch 131, common to all the first air nozzles 40, 42, extending between the source 72 and each of the specific branches 130, 132.
  • This common branch 131 is equipped with the first valve 124.
  • the second primary channel 122 comprises a second primary branch 134 specific to the second primary nozzles 44 and a second secondary branch 134 specific to the second secondary nozzles 46.
  • the second primary branch 134 is equipped with a second primary flow reducer 144, preferably non-adjustable, to reduce the flow in the branch 134 downstream of the flow restrictor 144.
  • the second secondary branch 136 is equipped with a second secondary flow restrictor 146, preferably non-adjustable, to reduce the flow in the branch 136 downstream of flow reducer 146.
  • the second channel 122 also includes a second common branch 135, common to all the second air nozzles 40, 42, extending between the source 72 and each of the specific branches 134, 136.
  • This common branch 135 is equipped with the second valve 126.
  • Each of the first and second valves 124, 126 is advantageously constituted by an on/off valve.
  • control system 100 comprises a first control module 154 to control the first valve 124, and a second control module 156 to control the second valve 126.
  • Each of the control modules 154, 156 has a connection for a control device (not shown) and is adapted to actuate the valve 124, 126 that it controls when said control device is connected to said connection.
  • the control member is a pneumatic actuator
  • the control module 154, 156 then comprising a pneumatic circuit connecting the connection of said module 154, 156 to the valve 124, 126 controlled by said module 154, 156, said valve 124 , 126 then being constituted by a pneumatically controlled valve.
  • control member is a hydraulic actuator, the control module 154, 156 then comprising a hydraulic circuit connecting the connection of said module 154, 156 to the valve 124, 126 controlled by said module 154, 156, said valve 124 , 126 then being constituted by a hydraulically controlled valve.
  • control member is an electric actuator, the control module 154, 156 then comprising an electric circuit connecting the connection of said module 154, 156 to the valve 124, 126 controlled by said module 154, 156, said valve 124, 126 then being constituted by an electrically controlled valve.
  • the coating installation 2 is first of all provided with the bowl 12 mounted on the body 14.
  • a first narrow surface constituting for example the edge of a roof of the bodywork, is then placed facing the rotary projector 10 and the control module 102 (or 154 if we are in the second embodiment) is actuated, so as to open the supply of the interior air nozzles 40, 42 with air.
  • the rotary projector 10 is then activated, i.e. the supply system 18 is switched on, and the variable valves 93, 97 are opened to allow the supply of the air nozzles 40, 42 in the air.
  • the rotary projector 10 then begins to project a jet of coating product which, thanks to the air ejected by the internal nozzles 40, 42, is shaped narrowly. The narrow surface can thus be coated without waste of coating material.
  • the rotary projector 10 is deactivated, and a second, extended surface of the object is placed in front of the rotary projector, for example the center of the roof of the bodywork.
  • the control module 102 (or 154 if we are in the second embodiment) is then deactivated so as to close the supply of the interior air nozzles 40, 42 with air, and the control module 104 (or 156 if we are in the second embodiment) is actuated so as to open the air supply to the external air nozzles 44, 46, the bowl 12 remaining mounted on the body 14.
  • the bowl 12 is dismantled from the body 14 and replaced by the second spraying member with a diameter greater than that of the bowl 12.
  • the rotating projector 10 is reactivated.
  • the jet of coating product projected by the rotary projector 10 is then broadly shaped thanks to the air ejected by the external nozzles 44, 46.
  • the extended surface can thus be covered quickly and with a high quality of covering.
  • the rotary projector 10 When it is desired to return to a narrow coating product jet, the rotary projector 10 is deactivated, the control module 104 is deactivated (or 156 if one is in the second embodiment) so as to close the supply of the exterior air nozzles 44, 46 with air, and the control module 102 (or 154 if one is in the second embodiment) is actuated so as to open the supply of the interior air nozzles 40 , 42 in the air, the rotary projector 10 then being reactivated.
  • the series of nozzles 41, 43, 45, 47 can be grouped together in groups of three series 41, 43, 45, 47 or more to form a shaping air, and/or some of the series 41, 43, 45, 47 can be isolated from the others to form a shaping air.
  • the invention is not limited to this single embodiment, and extends to all possible relative positions of the nozzles 40, 42, 44, 46, in particular to the positions for which the second nozzles 44, 46 are arranged inside a separation perimeter, the first nozzles 40, 42 being arranged outside this separation perimeter, and at the positions for which the first and second nozzles 40, 42, 44, 46 are arranged on a common contour.

Landscapes

  • Engineering & Computer Science (AREA)
  • Robotics (AREA)
  • Nozzles (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Spray Control Apparatus (AREA)

Claims (11)

  1. Schürze (20) für einen drehenden Projektor (10) für einen Beschichtungsstoff, der vorgesehen ist, einen Strahl von Beschichtungsstoff auf eine zu beschichtende Oberfläche zu projizieren, wobei die Schürze (20) eine Mehrzahl von in der Schürze (20) eingearbeitete Düsen (40, 42, 44, 46) zum Ausstoßen von Luft aufweist, um Luftstrahlen auszustoßen, die eine Formgebungsluft bilden, die angepasst ist, den Strahl von Beschichtungsstoff zu formen, wobei die Düsen (40, 42, 44, 46) zum Ausstoßen von Luft mindestens drei unterschiedliche Düsenreihen (41, 43, 45, 47) umfassen und jede Düsenreihe (41, 43, 45, 47) aus einer Mehrzahl von Düsen (40, 42, 44, 46) zum Ausstoßen von Luft, die fluidisch mit einer gemeinsamen, zu der Düsenreihe (41, 43, 45, 47) gehörenden Versorgungskammer (40A, 42A, 44A, 46A) verbunden sind, gebildet wird,
    dadurch gekennzeichnet, dass die Düsen (40, 42, 44, 46) zum Ausstoßen von Luft eine erste Düsengruppe (48), die von mindestens einer ersten Düsenreihe (41, 43) aus den Düsenreihen (41, 43, 45, 47) gebildet ist, und eine zweite Düsengruppe (49), die von mindestens einer zweiten Düsenreihe (45, 47) aus den Düsenreihen (41, 43, 45, 47) gebildet ist, umfassen, wobei die oder jede erste Düsenreihe (41, 43) unterschiedlich zu der oder jeder zweiten Düsenreihe (45, 47) ist und die erste Düsenreihe (48) derart ist, dass, wenn die oder jede erste Düsenreihe (41, 43) mit Luft versorgt wird, die Düsen (40, 42) der oder jeder Düsenreihe (41, 43) erste Luftstrahlen ausstoßen, die zusammen eine erste Formgebungsluft bilden, die angepasst ist, den Strahl an Beschichtungsstoff in enger Weise zu formen, und die zweite Düsengruppe (49) derart ist, dass, wenn die oder jede zweite Düsenreihe (45, 47) mit Luft versorgt wird, die Düsen (44, 46) der oder jeder zweiten Düsenreihe (45, 47) zweite Luftstrahlen ausstoßen, die zusammen eine zweite Formgebungsluft bilden, die angepasst ist, den Strahl an Beschichtungsstoff in breiter Weise zu formen.
    wobei die erste Düsengruppe (48) eine erste Reihe von Primärdüsen (41) und eine erste Reihe von Sekundärdüsen (43) umfasst, wobei die erste Reihe von Primärdüsen (41) aus ersten Primärdüsen (40) besteht, die jeweils angepasst sind, um einen ersten Primärluftstrahl in einer ersten Primärluftrichtung auszustoßen, wobei jede der Düsen der ersten Reihe von Sekundärdüsen (43) angepasst ist, um einen ersten Sekundärluftstrahl gemäß einer ersten Sekundärrichtung auszustoßen, die sich von der ersten Primärrichtung unterscheidet und die erste Primärrichtung in einem ersten Schnittbereich im Wesentlichen schneidet,
    und wobei die zweite Düsengruppe (49) eine zweite Reihe von Primärdüsen (45) und eine zweite Reihe von Sekundärdüsen (47) umfasst, wobei die zweite Reihe von Primärdüsen (45) von der ersten Reihe von Primärdüsen (41) verschieden ist und aus zweiten Primärdüsen (44) besteht, die jeweils angepasst sind, um einen zweiten Primärluftstrahl gemäß einer zweiten Primärrichtung auszustoßen, die sich von der ersten Primärrichtung unterscheidet, wobei jede der zweiten Reihe von Sekundärdüsen (47) angepasst ist, um einen zweiten Primärstrahl gemäß einer zweiten Sekundärrichtung auszustoßen, die sich von der zweiten Primärrichtung unterscheidet und die zweite Primärrichtung in einem zweiten Schnittbereich im Wesentlichen schneidet,
    wobei die erste Reihe von Sekundärdüsen (43) von der ersten und zweiten Reihe von Primärdüsen (41, 45) verschieden ist,
    die zweite Reihe von Sekundärdüsen (47) von der ersten und zweiten Reihe von Primärdüsen (41, 45) verschieden ist, und
    die Luftausstoßdüsen (40, 42, 44, 46) mindestens vier verschiedene Reihen von Düsen (41, 43, 45, 47) umfassen.
  2. Schürze (20) nach Anspruch 1, wobei die erste Primärrichtung durch einen ersten Primäreinheitsvektor (60) definiert ist, der eine erste primäre radiale Abweichungskomponente (60B) aufweist, und die zweite Primärrichtung durch einen zweiten Primäreinheitsvektor (64) definiert ist, der eine zweite primäre radiale Abweichungskomponente (64B) aufweist, wobei die zweite primäre radiale Abweichungskomponente (64B) größer als die erste primäre radiale Abweichungskomponente (60B) ist.
  3. Schürze (20) nach Anspruch 1 oder 2, wobei die erste Primärrichtung durch einen ersten Primäreinheitsvektor (60) definiert ist, der eine erste primäre orthoradiale Komponente (60C) aufweist, und die zweite Primärrichtung durch einen zweiten Primäreinheitsvektor (64) definiert ist, der eine zweite primäre orthoradiale Komponente (64C) aufweist, wobei die zweite primäre orthoradiale Komponente (64C) größer als die erste primäre orthoradiale Komponente (60C) ist.
  4. Schürze (20) nach einem beliebigen der Ansprüche 1 bis 3, wobei jede der ersten und zweiten Primärrichtung durch einen Primäreinheitsvektor (60, 64) definiert ist, der eine primäre orthoradiale Komponente (60C, 64C), die nicht null ist, aufweist.
  5. Schürze (20) nach einem der Ansprüche 1 bis 4, wobei die ersten Düsen (40, 42) der ersten Primärdüsenreihe und Sekundärdüsenreihe (41, 43) in wechselnder Anordnung zueinander liegen und/oder die zweiten Düsen (44, 46) der zweiten Primärdüsenreihe und Sekundärdüsenreihe (45, 47) in wechselnder Anordnung zueinander liegen.
  6. - Schürze (20) nach einem beliebigen der Ansprüche 1 bis 5, wobei die ersten Düsen (40, 42) im Inneren eines Trennumfangs (54) angeordnet sind, die zweiten Düsen (44, 46) außerhalb des Trennumfangs (54) angeordnet sind, oder ersten Düsen (40, 42) außerhalb eines Trennumfangs (54) angeordnet sind, die zweiten Düsen (44, 46) innerhalb des Trennumfangs (54) angeordnet sind.
  7. Drehender Projektor (10) für Beschichtungsstoff, der mindestens ein Zerstäubungselement (12) des Beschichtungsstoffs, ein Antriebssystem (16) zum Antreiben des ersten Zerstäubungselementes (12) zur Drehung um eine Achse (A-A') und eine feststehende Schürze (20) aufweist,
    dadurch gekennzeichnet, dass die Schürze (20) aus einer Schürze nach einem beliebigen der vorhergehenden Ansprüche besteht, wobei jede der Versorgungskammern (40A, 42A, 44A, 46A) in dem drehenden Projektor (10) gebildet ist.
  8. Drehender Projektor (10) nach Anspruch 7, wobei das Zerstäubungselement (12) mindestens eine im Wesentlichen kreisförmige Kante (26) aufweist und jede der Düsen (40, 42, 44, 46) zum Ausstoßen von Luft in einer Entfernung zur Drehachse (A-A') liegt, die größer oder gleich dem Halbdurchmesser der Kante (26) ist.
  9. Zerstäubungsroboter (4), umfassend einen angelenkten Arm (8), ein an einem Ende des angelenkten Arms (8) montiertes Armgelenk (9) und einen drehenden, an dem Armgelenk (9) befestigten Projektor (10), wobei der drehende Projektor (10) ein drehender Projektor (10) nach Anspruch 7 oder 8 ist.
  10. - Verfahren zum Beschichten mindestens eines Teils mindestens eines Objektes mit einem Beschichtungsstoff, der mittels eines rotierenden Projektors (10) nach Anspruch 7 oder 8 aufgespritzt wird, bei dem die Düsen (40, 42, 44, 46) zum Ausstoßen von Luft eine erste Düsengruppe (48), die von mindestens einer ersten Düsenreihe (41, 43) aus den Düsenreihen (41, 43, 45, 47) gebildet ist, und eine zweite Düsengruppe (49), die von mindestens einer zweiten Düsenreihe (45, 47) aus den Düsenreihen (41, 43, 45, 47) gebildet ist, umfassen, wobei die oder jede erste Düsenreihe (41, 43) unterschiedlich zu der oder jeder zweiten Düsenreihe (45, 47) ist, wobei das Verfahren die folgenden Schritte umfasst:
    - Spritzen eines ersten Strahls an Beschichtungsstoff mittels eines rotierenden Projektors (10), wobei nur die Düsen (40, 42) zum Ausstoßen von Luft der ersten Düsengruppe (48) mit Luft versorgt werden und die die ersten Luftstrahlen ausstoßenden Düsen (40, 42) zum Ausstoßen von Luft zusammen eine erste Formgebungsluft bilden, die den Strahl an Beschichtungsstoff in enger Weise formt, die erste Düsengruppe (48) umfassend eine erste Reihe von Primärdüsen (41) und eine erste Reihe von Sekundärdüsen (43), wobei die erste Reihe von Primärdüsen (41) aus ersten Primärdüsen (40) besteht, die jeweils angepasst sind, um einen ersten Primärluftstrahl in einer ersten Primärluftrichtung auszustoßen, wobei jede der Düsen der ersten Reihe von Sekundärdüsen (43) angepasst ist, um einen ersten Sekundärluftstrahl gemäß einer ersten Sekundärrichtung auszustoßen, die sich von der ersten Primärrichtung unterscheidet und die erste Primärrichtung in einem ersten Schnittbereich im Wesentlichen schneidet, und
    - vor oder nach dem Schritt des Spritzens eines ersten Strahls an Beschichtungsstoff Spritzen eines zweiten Strahls an Beschichtungsstoff mittels des rotierenden Projektors (10), wobei nur die Düsen (44, 46) zum Ausstoßen von Luft der zweiten Düsengruppe (49) mit Luft versorgt werden und die die zweiten Luftstrahlen ausstoßenden Düsen (44, 46) zum Ausstoßen von Luft zusammen eine zweite Formgebungsluft bilden, die den Strahl an Beschichtungsstoff in breiter Weise formt, die zweite Düsengruppe (49) umfassend eine zweite Reihe von Primärdüsen (45) und eine zweite Reihe von Sekundärdüsen (47), wobei die zweite Reihe von Primärdüsen (45) von der ersten Reihe von Primärdüsen (41) verschieden ist und aus zweiten Primärdüsen (44) besteht, die jeweils angepasst sind, um einen zweiten Primärluftstrahl gemäß einer zweiten Primärrichtung auszustoßen, die sich von der ersten Primärrichtung unterscheidet, wobei jede der zweiten Reihe von Sekundärdüsen (47) angepasst ist, um einen zweiten Primärstrahl gemäß einer zweiten Sekundärrichtung auszustoßen, die sich von der zweiten Primärrichtung unterscheidet und die zweite Primärrichtung in einem zweiten Schnittbereich im Wesentlichen schneidet,
    wobei die erste Reihe von Sekundärdüsen (43) von der ersten und zweiten Reihe von Primärdüsen (41, 45) verschieden ist,
    die zweite Reihe von Sekundärdüsen (47) von der ersten und zweiten Reihe von Primärdüsen (41, 45) verschieden ist, und
    die Luftausstoßdüsen (40, 42, 44, 46) mindestens vier verschiedene Reihen von Düsen (41, 43, 45, 47) umfassen.
  11. Beschichtungsverfahren nach Anspruch 10, zwischen dem Schritt des Spritzens des ersten Strahls an Beschichtungsstoff und dem Schritt des Spritzens des zweiten Strahls an Beschichtungsstoff einen Schritt des Ersetzens des Zerstäubungselementes (12) durch ein anderes Zerstäubungselement umfassend.
EP17180567.4A 2016-07-11 2017-07-10 Lenkluftring mit mindestens drei serien von verschiedenen luftausstossdüsen, drehzerstäuber für ein beschichtungsprodukt mit einer solchem ring, und beschcichtungsverfahren Active EP3269454B2 (de)

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FR1656633A FR3053608B1 (fr) 2016-07-11 2016-07-11 Jupe pour projecteur rotatif de produit de revetement comprenant au moins trois series de buses d'ejection d'air distinctes

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FR3108045B1 (fr) * 2020-03-11 2023-02-10 Exel Ind Installation comportant un pulvérisateur et procédé associé
EP4094842A1 (de) * 2021-05-28 2022-11-30 Graco Minnesota Inc. Rotationsglockenzerstäuber zur formung der luftkonfiguration, luftkappenvorrichtung und entsprechende methode
US12109581B2 (en) 2021-05-28 2024-10-08 Graco Minnesota Inc. Rotory bell atomizer shaping air configuration and air cap apparatus

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CN107597463B (zh) 2021-01-05
EP3269454A1 (de) 2018-01-17
PL3269454T3 (pl) 2021-02-08
KR20180006865A (ko) 2018-01-19
ES2824468T5 (es) 2023-12-13
US10919065B2 (en) 2021-02-16
US20180008997A1 (en) 2018-01-11
ES2824468T3 (es) 2021-05-12
RU2017124331A (ru) 2019-01-10
EP3269454B1 (de) 2020-09-09
JP2018008267A (ja) 2018-01-18
CN107597463A (zh) 2018-01-19
KR102447336B1 (ko) 2022-09-26
JP6962728B2 (ja) 2021-11-05
FR3053608A1 (fr) 2018-01-12
FR3053608B1 (fr) 2021-04-23
BR102017014845A2 (pt) 2018-01-23
RU2017124331A3 (de) 2020-06-18

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