EP2953732B1 - Procédé d'application et installation d'application - Google Patents

Procédé d'application et installation d'application Download PDF

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Publication number
EP2953732B1
EP2953732B1 EP14704076.0A EP14704076A EP2953732B1 EP 2953732 B1 EP2953732 B1 EP 2953732B1 EP 14704076 A EP14704076 A EP 14704076A EP 2953732 B1 EP2953732 B1 EP 2953732B1
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EP
European Patent Office
Prior art keywords
application
component
coating medium
jet
application device
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.)
Active
Application number
EP14704076.0A
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German (de)
English (en)
Other versions
EP2953732A1 (fr
Inventor
Hans-Georg Fritz
Benjamin WÖHR
Marcus Kleiner
Timo Beyl
Frank Herre
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.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
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.)
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Publication date
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Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Priority to EP20209960.2A priority Critical patent/EP3804863B1/fr
Publication of EP2953732A1 publication Critical patent/EP2953732A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
    • 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
    • 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
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
    • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
    • B05B12/124—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to distance between spray apparatus and target
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
    • B05C11/1015—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target
    • B05C11/1018—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves responsive to a conditions of ambient medium or target, e.g. humidity, temperature ; responsive to position or movement of the coating head relative to the target responsive to distance of target
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/06—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain multicolour or other optical effects
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D2252/00—Sheets

Definitions

  • the invention relates to an application method and an application system for applying a coating agent (e.g. paint, sealant, release agent, adhesive, functional layer) to a component (e.g. a motor vehicle body component).
  • a coating agent e.g. paint, sealant, release agent, adhesive, functional layer
  • component e.g. a motor vehicle body component
  • a coating process is known in which a jet of droplets of the coating agent is generated which impinges on the component surface to be coated.
  • the droplet disintegration of the initially continuous coating agent jet is specifically forced through the coupling of vibrations so that the disintegration length of the coating agent jet is smaller than the painting distance, ie the distance between the application device and the component surface.
  • the invention is therefore based on the object of creating a correspondingly improved application method and a corresponding application system.
  • WO 2010/046064 A1 a print head is known which ejects coating agent droplets, which is also remote.
  • the invention includes the general technical teaching, not the droplet disintegration - as in DE 10 2010 019 612 A1 - to force it specifically by coupling vibrations, but to use the continuous area of the coating agent jet for coating.
  • the application distance ie the distance between the outlet opening of the application device on the one hand and the component surface to be coated on the other hand
  • the disintegration length of the coating agent jet ie the length of the continuous area of the coating agent jet between the outlet opening of the application device on the one hand and the end of the continuous area at the transition to the drop disintegration.
  • a coating agent jet is output from an application device, the coating agent jet initially having a region that is contiguous in the jet direction after exiting the application device until it reaches a disintegration length, whereupon the coating agent jet then after the Disintegration length after exiting the application device according to the laws of nature ("natural disintegration according to Rayleigh") disintegrates into droplets which are separated from one another in the direction of the jet.
  • coating agent jet used in the context of the invention includes both one and several coating agent jets, but for the sake of simplicity only the singular form is used below.
  • the coating agent jet is to be distinguished from a coating agent mist, as it is emitted, for example, by conventional rotary atomizers.
  • the coating agent jet according to the invention is characterized by a coherent cross section, a widening angle that is small compared to an atomization mist, and a very small lateral expansion, which is particularly important when painting details.
  • the application method according to the invention in accordance with the prior art described at the beginning, provides that the application device is positioned relative to the component to be coated (e.g. motor vehicle body component) with a certain application distance between the application device and the component, so that the coating agent jet hits the component and the component is coated.
  • the component to be coated e.g. motor vehicle body component
  • the component it is also possible for the component to be coated flatly with the coating agent, in that the coating agent jet travels over the component surface in several adjacent or overlapping paths.
  • the application method according to the invention differs from the prior art described at the outset in that the application distance is selected to be smaller than the disintegration length of the coating agent jet so that the coating agent jet strikes the component with its coherent area.
  • the application distance is selected to be smaller than the disintegration length of the coating agent jet so that the coating agent jet strikes the component with its coherent area.
  • individual droplets of the coating agent hit the component surface, whereas according to the invention a continuous jet of coating agent hits the component.
  • coating agent used in the context of the invention is to be understood generally and includes, for example, paint (e.g. basecoat, clearcoat), sealant, release agent, functional layer and adhesive. In a preferred embodiment of the invention, however, a detailed painting is provided, with a paint being applied.
  • the functional layer category includes all layers that result in surface functionalization, such as adhesion promoters, primers, stone chip protection or layers to reduce transmission.
  • the coating agent jet can apply a strip (for example design strips, decorative strips) to the component.
  • a pattern with sharp edges can be achieved, which is important for a high-quality appearance.
  • the term of a sharp-edged pattern used in the context of the invention means that the edge of the pattern has only very slight deviations from a given edge profile, which are preferably smaller than 3 mm, 1 mm, 0.5 mm, 0.2 mm or even 0.1 mm.
  • the term “pattern with sharp edges” used in the context of the invention also means that outside of the coated pattern, no coating agent splashes hit the component surface.
  • the application method according to the invention is also suitable for flat component coating.
  • the coating agent jet can be passed over the component several times, with a coating agent strip being applied in each case. In this way, a meandering guidance of the coating agent jet enables numerous parallel coating agent paths to be applied.
  • the individual coating agent webs run into one another after application and then form a uniform strip or a uniform coating agent layer.
  • the term pattern used in the context of the invention is preferably based on a strip that is applied to the component surface.
  • extremely narrow strips can advantageously be applied which are less than 1 m, 10 cm, 5 cm, 2 cm, 1 cm, 5 mm, 2 mm, 1 mm, 400 ⁇ m or even less than 200 ⁇ m wide can have.
  • the individual strip preferably has a width of at least 100 ⁇ m, 200 ⁇ m, 400 ⁇ m, 1 mm, 2 mm, 5 mm, 1 cm, 2 cm, 5 cm, 10 cm or even 1 m.
  • the application device emits not just a single jet of coating agent, but rather several jets of coating agent which are aligned essentially parallel to one another.
  • the distance between the directly adjacent coating agent jets is preferably so large that the directly adjacent coating agent jets do not unite between the application device and the component, but instead strike the component surface as separate coating agent jets, but still unite on the component to form a surface.
  • a plurality of application nozzles which have a specific nozzle inside diameter and are arranged at a specific nozzle spacing, are preferably provided for emitting the individual jets of coating agent.
  • the nozzle spacing between the directly adjacent application nozzles is preferably at least three, four or six times the nozzle inside diameter.
  • the individual application nozzles are preferably arranged together in a perforated plate, which enables cost-effective production.
  • the individual application nozzles or areas with several nozzles can be controlled independently of one another, so that the coating agent jets emerging from the individual application nozzles have different operating parameters.
  • the exit speed of the coating agent from the application nozzles, the type of coating agent or the volume flow of the emerging coating agent can be set individually for the individual application nozzles or areas.
  • the application device is moved relative to the component during the application of the coating agent, so that the coating agent jet travels a corresponding path with its point of impact on the component surface.
  • the application device can be arranged in a stationary manner while the component is being moved.
  • the speed of movement is preferably at least 10 cm / s, 50 cm / s, 1 m / s, 1.5 m / s and at most 10 m / s, 5 m / s or at most 1 m / s.
  • the component is arranged in a stationary manner while the application device is moved.
  • the moving speed is preferable at least 10 cm / s, 20 cm / s, 30 cm / s, 50 cm / s, 1 m / s or at least 2 m / s and at most 250 cm / s, 700 mm / s, 500 mm / s or at most 100 mm / s.
  • the relative movement between the application device and the component to be coated can be achieved in that both the application device and the component to be coated are moved.
  • the application device is moved over the component surface relative to the component so that the coating agent jet travels a path with its point of impact on the component surface, which is then coated with the coating agent.
  • the coating agent jet is briefly switched off or interrupted during the movement of the path on the component surface and then switched on again or continued, so that the path that has been moved has a gap on the component surface that is not coated with the coating agent.
  • the coating agent jet can be moved so slowly over the component surface and switched on or off so quickly that a spatial resolution of finer than 5 mm, 2 mm or 1 mm is achieved on the component. This is particularly advantageous when painting a sample in detail.
  • One advantage of the application method according to the invention consists in the avoidance of overspray or in the increase in the application efficiency, ie the proportion of the applied coating agent which is actually deposited on the component surface.
  • the coating agent jet is therefore preferably only switched on when the coating agent jet actually hits the component surface hits.
  • the application device is therefore preferably moved to the edge in a lateral direction with the coating agent jet switched off.
  • the coating agent jet is only switched on when the application device is located over the edge, so that the activated coating agent jet actually hits the component.
  • the application device is then moved over the component to be coated along the component surface to be coated in order to apply a corresponding path of the coating agent.
  • the jet of coating agent is then switched off again when the application device is moved over a lateral edge of the component to be coated, since the jet of coating agent would then no longer impinge on the component surface.
  • the spatial positions of the component to be coated and of the application device are preferably recorded in order to be able to deduce from them whether the coating agent jet would strike the component surface.
  • the jet of coating agent is then preferably switched off when the detected positions of the component and application device indicate that the jet of coating agent would not impinge on the component surface.
  • the coating agent jet can preferably only be switched on if the detected positions of the component and application device suggest that the coating agent jet would actually strike the component surface.
  • the above-mentioned position detection can for example by means of a camera, an ultrasonic sensor, an inductive or capacitive sensor or by means of a laser sensor.
  • a camera an ultrasonic sensor, an inductive or capacitive sensor or by means of a laser sensor.
  • the positions of the component and the application device are read out from a machine or robot controller, provided that the component and the application device are positioned by a machine or a robot.
  • the application method according to the invention enables a high application efficiency, which can for example be greater than 80%, 90%, 95% or even greater than 99%, so that essentially all of the applied coating agent is completely deposited on the component without creating a significant amount of overspray.
  • the application method according to the invention also enables a relatively high surface coating performance of at least 0.5 m 2 / min, 1 m 2 / min or 3 m 2 / min.
  • the surface coating performance can be increased almost at will by increasing the number of application nozzles in the application device accordingly.
  • the coating agent jet should be prevented from bouncing off the component again after hitting the component, since this would lead to disruptive coating agent splashes that prevent a sharp-edged painting.
  • the volume flow of the applied coating agent and thus the exit speed of the coating agent are therefore preferably set in such a way that the coating agent does not bounce off the component after it hits the component.
  • the exit speed of the coating agent is preferably at least 5 m / s, 7 m / s or 10 m / s and at most 30 m / s, 20 m / s or 10 m / s.
  • the application distance between the outlet opening of the application device on the one hand and the component surface on the other hand is preferably at least 4 mm, 10 mm or at least 40 mm and preferably at most 200 mm or 100 mm.
  • the application device is preferably moved by means of a multi-axis robot, which can have serial or parallel kinematics.
  • a multi-axis robot which can have serial or parallel kinematics.
  • Such robots are known per se from the prior art and therefore need not be described in more detail.
  • the coating agent can be a lacquer, which can be, for example, a basecoat, a clear lacquer, an effect lacquer, a micro lacquer or a metallic lacquer. It should also be mentioned here that the coating agent can optionally be a water-based paint or a solvent-based paint.
  • the coating agent jet can preferably be switched on or off with a switching time of less than 50 ms, 20 ms, 10 ms, 5 ms or 1 ms.
  • the switching time is defined as the minimum time required to switch off the coating agent jet and then switch it on again or switch it on and then switch it off again.
  • the invention also includes a corresponding application system, as already emerges from the above description, so that a separate description of the application system can be dispensed with.
  • Figure 1 shows a conventional application system, such as that from DE 10 2010 019 612 A1 is known.
  • An application technology 1 supplies an application device 2 with the necessary media, such as the media to be applied Coating agent, which can be a lacquer, for example.
  • the application device 2 has a perforated plate 3 in which numerous application nozzles 4 are formed.
  • Each of the application nozzles 4 of the perforated plate 3 in each case emits a coating agent jet 5, the coating agent jets 5 immediately after emerging from the application nozzles 4 initially being contiguous over a disintegration length L DECAY in the direction of the jet and then disintegrating into droplets, the droplet disintegration in this conventional application system is specifically forced by coupling vibrations.
  • the application device 2 is positioned relative to a component 6 to be coated at an application distance d, the positioning being carried out in such a way that the application distance d is greater than the disintegration length L DECAY .
  • FIG Figure 2 shows a modification of the conventional application system according to FIG Figure 1 towards the invention.
  • the application system according to the invention according to Figure 2 partially corresponds to the conventional application system described above, so that to avoid repetition, reference is made to the above description, the same reference symbols being used for corresponding details.
  • a special feature of the application system according to the invention is that the application device 2 is positioned relative to the component 6 in such a way that the application distance d is smaller than the decay length L DECAY . This means that the coating agent jets 5 strike the surface of the component 6 with their area that is contiguous in the jet direction, which leads to a better painting result.
  • the droplet disintegration of the coating agent jets 5 is not specifically forced here by coupling in vibrations, since the droplet disintegration is precisely to be prevented within the scope of the invention.
  • the application system according to the invention enables the application of sharp-edged patterns, as in FIGS Figures 3A-3C and 4A-4C is shown and is explained below.
  • Figure 3A a sharp-edged strip, as shown in accordance with the application system according to the invention Figure 2 can be applied to the component 6.
  • FIGS 3B and 3C show, however, embodiments of conventional strips with more or less frayed edges of the strip.
  • the Figures 4A-4C also do not show any sharp-edged stripes but rather unsuitable stripes with coating agent splashes on the side next to the actual stripe.
  • Figure 5 shows a schematic representation of a strip 7 to illustrate the sharpness of the edge of the strip 7.
  • the strip 7 has a maximum deviation a from a predetermined edge profile, the deviation a within the scope of the invention preferably being less than 3 mm, 1 mm or 0.5 mm.
  • FIGS. 6A-6D show in schematic form the application of a paint web to a component 9, the component 9 being delimited laterally by two edges 10, 11.
  • the coating agent webs are applied here by means of an application device 12, the application device 12 being able to emit coating agent jets 13, as already described above.
  • the application device 12 is first brought laterally to the component 9, as in FIG Figure 6A is shown, the coating agent jet 13 initially still switched off, since the coating agent jet 13 would not impinge on the component 9 if the application device 12 is still to the side next to the edge 10 of the component 9.
  • the coating agent jet 13 When passing the edge 10 of the component 9, the coating agent jet 13 is then switched on, as in FIG Figure 6B is shown.
  • the coating agent jet 13 When passing the opposite edge 11 of the component 9, the coating agent jet 13 is then switched off again, as in FIG Figure 6D is shown, since the coating agent jet 13 would no longer impinge on the surface of the component 9 if the application device 12 were subsequently moved further over the edge 11 of the component 9.
  • the precise switching on or off of the coating agent jet 13 is made possible in that the positions of the application device 12 and the component 9 are recorded by means of a camera sensor 14.
  • an ultrasonic sensor instead of a camera sensor, an ultrasonic sensor, an inductive or capacitive sensor or a laser sensor can be used, which can be fixed in the vicinity of the application device and the component, but can also be moved along with the application device.
  • Figure 7 shows the operating method of the application system according to the invention according to the various stages in FIG Figures 6A-6D in a corresponding flow chart.

Landscapes

  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)

Claims (15)

  1. Procédé d'application pour l'application d'un produit de revêtement sur un composant (6 ; 9), avec les étapes suivantes :
    a) distribution d'un jet de produit de revêtement (5 ; 13) à partir d'un appareil d'application (2 ; 12),
    a1) dans lequel le jet de produit de revêtement (5 ; 13) comprend, après la sortie de l'appareil d'application (2 ; 12) jusqu'à ce qu'il atteigne une longueur de décomposition (LZERFALL), d'abord une partie cohérente dans la direction du jet,
    a2) le jet de produit de revêtement (5 ; 13) se décomposant, après la longueur de décomposition (LZERFALL), après la sortie de l'appareil d'application (2 ; 12), en gouttelettes qui sont séparées les unes des autres dans la direction du jet,
    a3) dans lequel le jet de produit de revêtement (5 ; 13) applique une bande sur le composant (6 ; 9),
    b) positionnement de l'appareil d'application (2 ; 12) par rapport au composant (6 ; 9) avec une distance d'application (d) déterminée entre l'appareil d'application (2 ; 12) et le composant (6 ; 9), de façon à ce que le jet de produit de revêtement (5 ; 13) arrive sur le composant (6 ; 9) et revête le composant (6 ; 9),
    c) dans lequel l'appareil d'application (2 ; 12) distribue plusieurs jets de produit de revêtement (5 ; 13) qui sont parallèles entre eux et
    d) la distance entre les jets de produit de revêtement (5, 13) immédiatement adjacents est tel que les jets de produit de revêtement (5, 13) adjacents ne fusionnent pas entre l'appareil d'application (2 ; 12) et le composant (6 ; 9) et
    e) pour la distribution des jets de produit de revêtement (5, 13), sont prévues plusieurs buses d'application (4) avec un diamètre intérieur de buse déterminé et une distance déterminée entre les buses,
    caractérisé en ce que
    f) la distance d'application (d) est inférieure à la longueur de décomposition (LZERFALL) du jet de produit de revêtement (5 ; 13), de façon à ce que le jet de produit de revêtement (5 ; 13) arrive avec sa partie cohérente sur le composant (6 ; 9) et
    g) le jet de produit de revêtement (5 ; 13) est déplacé plusieurs fois au-dessus du composant (6 ; 9), une bande de produit de revêtement étant appliquée et
    h) les bandes de produit de revêtement adjacentes s'imbriquent les unes dans les autres après l'application puis forment une bande unique et
    i) la distance entre les buses est au moins égale au triple du diamètre intérieure des buses.
  2. Procédé d'application selon la revendication 1,
    caractérisé en ce que la bande présente des bords nets avec des écarts maximaux (a) par rapport à une extension de bord prédéterminée de 3 mm maximum et sans projection de produit de revêtement à l'extérieur de la bande.
  3. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) la bande présente une largeur d'au moins 100 µm et
    b) la bande présente une largeur de 10 cm maximum.
  4. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que la distance entre les buses est au moins égale au quadruple ou au sextuple du diamètre intérieur des buses.
  5. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) l'appareil d'application (2 ; 12) comprend plusieurs buses d'application (4) dont au moins certaines sont contrôlées indépendamment les unes des autres et
    b) pour les buses d'application (4) contrôlables indépendamment les unes des autres, au moins une des grandeurs de fonctionnement suivantes est contrôlable indépendamment :
    b1) vitesse de sortie du produit de revêtement hors des buses d'application (4),
    b2) type de produit de revêtement,
    b3) débit volumique du produit de revêtement à travers les buses d'application (4).
  6. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'application (2 ; 12) est déplacé pendant l'application du produit de revêtement par rapport au composant (6 ; 9).
  7. Procédé d'application selon la revendication 6, caractérisé en ce que
    a) l'appareil d'application (2 ; 12) est stationnaire, tandis que le composant (6 ; 9) est déplacé et
    b) le composant (6 ; 9) est déplacé pendant l'application du produit de revêtement avec une vitesse d'au moins 10 cm/s et
    c) le composant (6 ; 9) est déplacé pendant l'application du produit de revêtement avec une vitesse de 10 m/s maximum.
  8. Procédé d'application selon la revendication 6, caractérisé en ce que
    a) le composant (6 ; 9) est stationnaire, tandis que l'appareil d'application (2 ; 12) est déplacé et
    b) l'appareil d'application (2 ; 12) est déplacé pendant l'application du produit de revêtement avec une vitesse d'au moins 10 cm/s et
    c) l'appareil d'application (2 ; 12) est déplacé pendant l'application du produit de revêtement avec une vitesse de 250 cm/s maximum.
  9. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) l'appareil d'application (2 ; 12) est déplacé par rapport au composant (6 ; 9) au-dessus de la surface du composant, de façon à ce que le jet de produit de revêtement (5 ; 13) parcourt une trajectoire avec son point d'impact sur la surface du composant et
    b) le jet de produit de revêtement (5 ; 13) est désactivé puis de nouveau activé pendant le parcours de la trajectoire sur la surface du composant et
    c) le jet de produit de revêtement (5 ; 13) est déplacé lentement au-dessus de la surface du composant et rapidement activé et désactivé de façon à ce que, sur le composant (6 ; 9), une résolution spatiale plus fine que 5 mm, 2 mm ou 1 mm soit obtenue.
  10. Procédé d'application selon l'une des revendications précédentes, caractérisé par les étapes suivantes :
    a) déplacement de l'appareil d'application (2 ; 12) vers une arête (10) du composant à revêtir (6 ; 9) lorsque le jet de produit de revêtement (5 ; 13) est désactivé,
    b) activation du jet de produit de revêtement (5 ; 13) lorsque l'appareil d'application (2 ; 12) se trouve au-dessus du composant (6 ; 9),
    c) déplacement de l'appareil d'application (2 ; 12) au-dessus du composant à revêtir (6 ; 9) le long de la surface du composant à revêtir,
    d) désactivation du jet de produit de revêtement (5 ; 13) lorsque l'appareil d'application (2 ; 12) ne se trouve plus au-dessus de la surface du composant à revêtir.
  11. Procédé d'application selon l'une des revendications précédentes, caractérisé par les étapes suivantes :
    a) mesure de la position dans l'espace du composant à revêtir (6 ; 9) et
    b) mesure de la position dans l'espace de l'appareil d'application (2 ; 12) et
    c) activation du jet de produit de revêtement (5 ; 13) en fonction de la position mesurée du composant (6 ; 9) et de l'appareil d'application (2 ; 12) et
    d) désactivation du jet de produit de revêtement (5 ; 13) en fonction de la position mesurée du composant (6 ; 9) et de l'appareil d'application (2 ; 12).
  12. Procédé d'application selon la revendication 11, caractérisé en ce que la position est mesurée au moyen
    a) d'une caméra (14),
    b) d'un capteur à ultrasons,
    c) d'un capteur inductif,
    d) d'un capteur capacitif,
    e) d'un capteur à laser ou
    f) d'une commande de robot à partir de laquelle la position est lue.
  13. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) le procédé d'application présente un rendement d'application d'au moins 80 %, de façon à ce que tout le produit de revêtement appliqué soit entièrement déposé sur le composant (6 ; 9) sans apparition d'une pulvérisation excessive et
    b) le procédé d'application présente une performance de revêtement de surface d'au moins 0,5 m2/min et
    c) le débit volumique du produit de revêtement appliqué et donc la vitesse de sortie du produit de revêtement est réglée de façon à ce que le produit de revêtement ne rebondisse pas sur le composant (6 ; 9) après l'arrivée sur le composant (6 ; 9) et
    d) la vitesse de sortie du produit de revêtement hors de l'appareil d'application (2 ; 12) est d'au moins 5 m/s et
    e) la vitesse de sortie du produit de revêtement hors de l'appareil d'application (2 ; 12) est de 30 m/s maximum et
    f) la distance d'application (d) est d'au moins 4 mm et
    g) la distance d'application (d) est de 200 mm maximum et
    h) l'appareil d'application (2 ; 12) est déplacé au moyen d'une machine et
    i) le produit de revêtement est une peinture et
    j) le jet de produit de revêtement (5 ; 13) est activé ou désactivé avec une durée de commutation inférieure à 50 ms.
  14. Installation d'application pour l'application d'un produit de revêtement sur un composant (6 ; 9) avec
    a) un appareil d'application (2 ; 12) pour la distribution d'un jet de produit de revêtement (5 ; 13),
    a1) dans lequel le jet de produit de revêtement (5 ; 13) comprend, après la sortie de l'appareil d'application (2 ; 12) jusqu'à ce qu'il atteigne une longueur de décomposition (LZERFALL), d'abord une partie cohérente dans la direction du jet,
    a2) le jet de produit de revêtement (5 ; 13) se décomposant, après la longueur de décomposition (LZERFALL), après la sortie de l'appareil d'application (2 ; 12), en gouttelettes qui sont séparées les unes des autres dans la direction du jet,
    a3) dans lequel le jet de produit de revêtement (5 ; 13) applique une bande sur le composant (6 ; 9),
    b) un dispositif de positionnement pour le positionnement de l'appareil d'application (2 ; 12) par rapport au composant (6 ; 9) avec une distance d'application (d) déterminée entre l'appareil d'application (2 ; 12) et le composant (6 ; 9), de façon à ce que le jet de produit de revêtement (5 ; 13) arrive sur le composant (6 ; 9) et revête le composant (6 ; 9),
    c) dans lequel l'appareil d'application (2 ; 12) distribue plusieurs jets de produit de revêtement (5, 13) qui sont parallèles entre eux et
    d) la distance entre les jets de produit de revêtement (5, 13) immédiatement adjacents est tel que les jets de produit de revêtement (5, 13) adjacents ne fusionnent pas entre l'appareil d'application (2 ; 12) et le composant (6 ; 9) et
    e) pour la distribution des jets de produit de revêtement (5, 13), sont prévues plusieurs buses d'application (4) avec un diamètre intérieur de buse déterminé et une distance déterminée entre les buses,
    caractérisée en ce que
    f) le dispositif de positionnement positionne l'appareil d'application (2 ; 12) par rapport au composant (6 ; 9) de façon à ce que la distance d'application (d) soit inférieure à la longueur de décomposition (LZERFALL) du jet de produit de revêtement (5 ; 13), de façon à ce que le jet de produit de revêtement (5 ; 13) arrive sur le composant (6 ; 9) avec sa partie cohérente et
    g) le dispositif de positionnement déplace l'appareil d'application (2 ; 12) de façon à ce que le jet de produit de revêtement (5 ; 13) soit déplacé plusieurs fois au-dessus du composant (6 ; 9) pour la production de la bande, une bande de produit de revêtement étant appliquée et
    h) le dispositif de positionnement déplace l'appareil d'application (2 ; 12) de façon à ce que le les bandes de produit de revêtement adjacentes s'imbriquent les unes dans les autres et forment une bande unique après l'application,
    i) la distance entre les buses est au moins égale au triple du diamètre intérieure des buses.
  15. Installation d'application selon la revendication 14, caractérisée en ce que
    a) l'appareil d'application (2 ; 12) comprend une plaque de buses dans laquelle sont disposées plusieurs buses d'application et
    b) l'appareil d'application (2 ; 12) comprend plusieurs buses d'application qui distribuent chacune un jet de produit de revêtement (5; 13), les jets de produit de revêtement (5, 13) générant ensemble une bande sur le composant (6 ; 9) et
    c) la bande présente une largeur d'au moins 100 µm et
    d) la bande présente une largeur de 5 cm maximum.
EP14704076.0A 2013-02-11 2014-02-03 Procédé d'application et installation d'application Active EP2953732B1 (fr)

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WO2014121916A8 (fr) 2014-10-09
US20210379620A1 (en) 2021-12-09
HUE061173T2 (hu) 2023-05-28
US20150375258A1 (en) 2015-12-31
MY177584A (en) 2020-09-21
PL3804863T3 (pl) 2023-02-13
DE102013002412A1 (de) 2014-08-14
JP6906031B2 (ja) 2021-07-21
CN104994966B (zh) 2019-08-06
MX2015009529A (es) 2015-10-30
CN104994966A (zh) 2015-10-21
JP2016507372A (ja) 2016-03-10
JP6608703B2 (ja) 2019-11-20
HUE053410T2 (hu) 2021-06-28
US11117160B2 (en) 2021-09-14
MX369366B (es) 2019-11-06
EP3804863A1 (fr) 2021-04-14
ES2934076T3 (es) 2023-02-16
US11872588B2 (en) 2024-01-16
JP2020022965A (ja) 2020-02-13
EP2953732A1 (fr) 2015-12-16
WO2014121916A1 (fr) 2014-08-14
ES2856182T3 (es) 2021-09-27

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