EP3804863B2 - Procédé d'application et système d'application - Google Patents

Procédé d'application et système d'application

Info

Publication number
EP3804863B2
EP3804863B2 EP20209960.2A EP20209960A EP3804863B2 EP 3804863 B2 EP3804863 B2 EP 3804863B2 EP 20209960 A EP20209960 A EP 20209960A EP 3804863 B2 EP3804863 B2 EP 3804863B2
Authority
EP
European Patent Office
Prior art keywords
application
coating agent
component
application device
jet
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
EP20209960.2A
Other languages
German (de)
English (en)
Other versions
EP3804863A1 (fr
EP3804863B1 (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.)
Filing date
Publication date
Family has litigation
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Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP3804863A1 publication Critical patent/EP3804863A1/fr
Application granted granted Critical
Publication of EP3804863B1 publication Critical patent/EP3804863B1/fr
Publication of EP3804863B2 publication Critical patent/EP3804863B2/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • B05B13/002—Machines or plants for applying coating liquids or other fluent materials by inkjet
    • 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 material (e.g. paint, sealant, release agent, adhesive, functional layer) to a component (e.g. a motor vehicle body component).
  • a coating material e.g. paint, sealant, release agent, adhesive, functional layer
  • a component e.g. a motor vehicle body component
  • a coating process is known in which a droplet jet of the coating material is generated and impacts the component surface to be coated.
  • the droplet breakup of the initially continuous coating material jet is selectively accelerated by vibration coupling so that the breakup length of the coating material jet is smaller than the coating distance, i.e., the distance between the application device and the component surface.
  • the invention is therefore based on the objective of creating a correspondingly improved application method and a corresponding application system.
  • the invention preferably comprises the general technical teaching, the droplet breakup not - as in DE 10 2010 019 612 A1 - rather than deliberately forcing the coating process through vibration coupling, but rather utilizing the continuous portion of the coating agent jet for coating.
  • the application distance i.e., the distance between the application device's outlet and the component surface to be coated
  • the application distance is therefore chosen to be smaller than the breakup length of the coating agent jet, i.e., the length of the continuous portion of the coating agent jet between the application device's outlet and the end of the continuous portion at the transition to droplet breakup. This results in the coating agent jet impacting the component with its continuous portion, leading to a better coating result.
  • a coating agent jet is thus emitted from an application device in accordance with the prior art described above, wherein the coating agent jet, after exiting the application device, initially has a continuous area in the jet direction until a fragmentation length is reached, whereupon the coating agent jet then, after the fragmentation length after exiting the application device, breaks up into droplets according to the laws of nature ("natural Rayleigh fragmentation") which are separated from each other in the jet direction.
  • coating agent jet used within the scope of the invention encompasses both single and multiple coating agent jets; however, for the sake of simplicity, only the singular form will be used in the following.
  • the coating agent jet is to be distinguished from a coating agent mist, such as that emitted by conventional rotary atomizers.
  • the coating agent jet according to the invention is characterized by a continuous cross-section, a small spreading angle compared to an atomizing mist, and a very small lateral extent, which is particularly important for detail painting.
  • the application method according to the invention in accordance with the prior art described above, provides that the application device is positioned relative to the component to be coated (e.g., a motor vehicle body component) with a specific application distance between the application device and the component, so that the coating medium jet hits the component and coats the component.
  • the component to be coated e.g., a motor vehicle body component
  • the component over its entire surface with the coating material by having the coating material jet travel across the component surface in several adjacent or overlapping passes.
  • the application method differs from the prior art described above in that the application distance is chosen to be smaller than the fragmentation length of the coating agent jet, so that the coating agent jet impacts the component with its continuous area.
  • the coating agent jet impacts the component with its continuous area.
  • coating material is to be understood generally and includes, for example, paint (e.g., base coat, clear coat), sealant, release agent, functional layer, and adhesive. However, in a preferred embodiment of the invention, a detailed coating is provided, in which a paint is applied.
  • the category of functional layer includes all layers that result in surface functionalization, such as adhesion promoters, primers, stone chip protection, or layers for reducing transmission.
  • the coating medium jet must apply a pattern to the component, such as a stripe (e.g., design stripe, decorative stripe).
  • a stripe e.g., design stripe, decorative stripe
  • the term "pattern" used within the scope of the invention is to be understood generally and is not limited to stripes.
  • the pattern can also be a graphic, such as the silhouette of a prancing horse on a car hood or a checkered flag on the roof of a motor vehicle body.
  • the application method according to the invention achieves a sharply defined pattern, which is important for a high-quality appearance.
  • the term “sharply defined pattern” as used in the invention means that the edge of the pattern exhibits only very slight deviations from a predetermined edge profile, which are less than 3 mm, 1 mm, 0.5 mm, 0.2 mm, or even 0.1 mm.
  • the term “sharply defined pattern” as used in the invention also means that no coating material splashes onto the component surface outside the coated pattern.
  • the application method according to the invention is also suitable for coating components over a large area.
  • the coating agent jet can be passed over the component multiple times, applying a coating agent layer each time. In this way, numerous parallel coating agent layers can be applied by following a meandering path of the coating agent jet.
  • the individual coating material webs do not overlap, but form two or more separate strips in the finished state.
  • the term "pattern" used within the scope of the invention preferably refers to a strip that is applied to the component surface.
  • the application method according to the invention advantageously allows the application of extremely narrow strips, which can have a width of 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.
  • 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 material, but several jets of coating material that are essentially parallel to one another.
  • the distance between the immediately adjacent jets of coating material is preferably such that the immediately adjacent jets do not merge between the application device and the component, but rather strike the component surface as separate jets, yet still merge to form a single area on the component.
  • Several application nozzles are provided for emitting the individual jets of coating material, each with a specific inner diameter and arranged at a specific distance from the surface.
  • the distance between the immediately adjacent nozzles is preferably at least three, four, or six times the inner diameter of the nozzle.
  • the individual application nozzles are preferably arranged together in a perforated plate, which enables cost-effective manufacturing.
  • the invention provides that the individual application nozzles or areas with multiple nozzles can be controlled independently of one another, so that the coating material jets exiting the individual application nozzles have different operating parameters. For example, in addition to the volume flow rate, the exit velocity of the coating material from the application nozzles or the type of coating material can also be individually adjusted for the individual application nozzles or areas.
  • the application device is moved relative to the component during the application of the coating material, so that the coating material jet follows a corresponding path with its point of impact on the component surface.
  • the application device can be stationary while the component is moved.
  • the movement speed 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.
  • This embodiment is inherently already EP 1 745 858 A2 known, so that the content of this patent application is fully attributable to the present description with regard to the relative movement of application device and component.
  • the component is arranged in a fixed position while the application device is moved.
  • the movement speed is preferably 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 by moving both the application device and the component to be coated.
  • the application device is moved relative to the component across its surface, so that the coating agent jet traces a path at its point of impact on the component surface, which is then coated with the coating agent. It is possible for the coating agent jet to be briefly switched off or interrupted while traversing the path on the component surface and then switched on or resumed, leaving a gap in the traced path that is not coated with the coating agent. According to the invention, the coating agent jet can be moved so slowly across the component surface and switched on and 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 for detailed coating of a sample.
  • An advantage of the application method according to the invention lies in the avoidance of overspray and/or the increase in the application efficiency, i.e., the proportion of the applied coating material that is actually deposited on the component surface.
  • the coating material jet is therefore preferably only switched on when it actually strikes the component surface.
  • the application device is therefore preferably moved laterally towards the edge with the coating material jet switched off.
  • the coating material jet is then only switched on when the application device is above the edge, so that the switched-on coating material jet then actually strikes the component.
  • the application device is moved across the component to be coated along the surface to apply a corresponding path of the coating material.
  • the coating material jet is then switched off again when the application device is moved over a side edge of the component to be coated, since the coating material jet would then no longer strike the component surface.
  • the spatial positions of the component to be coated and the application device are preferably detected in order to determine whether the coating agent jet would strike the component surface.
  • the coating agent jet is preferably switched off when the detected positions of the component and application device indicate that the coating agent jet would not strike the component surface.
  • the coating agent jet can preferably only be switched on when the detected positions of the component and application device indicate that the coating agent jet would actually strike the component surface.
  • the aforementioned position detection can be achieved, for example, using a camera, an ultrasonic sensor, an inductive or capacitive sensor, or a laser sensor.
  • the positions of the component and application device can be read from a machine or robot controller, provided that the component and the application device are positioned by a machine or robot.
  • the application method according to the invention enables a high deposition efficiency, which can be greater than, for example, 80%, 90%, 95% or even greater than 99%, so that essentially the entire applied coating material is completely deposited on the component without any significant overspray occurring.
  • the application method according to the invention also enables a relatively high surface coating rate of at least 0.5 m2 /min, 1 m2 /min or 3 m2 /min.
  • the surface coating rate can be increased almost indefinitely by increasing the number of application nozzles in the application device accordingly.
  • the coating agent jet should not rebound from the component after impact, as this would lead to disruptive coating agent splashes that prevent a sharply defined coating edge. Therefore, the volumetric flow rate of the applied coating agent, and thus the exit velocity of the coating agent, is preferably adjusted so that the coating agent does not rebound from the component after impact.
  • the exit velocity of the coating material 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 may have serial or parallel kinematics.
  • a multi-axis robot which may have serial or parallel kinematics.
  • Such robots are known from the prior art and therefore do not need to be described in more detail.
  • the coating material can be a paint, such as a base coat, clear coat, effect paint, micro-paint, or metallic paint. It should also be noted that the coating material can be either water-based or solvent-based.
  • 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 here as the minimum time required to switch the coating agent jet off and then on again, or to switch it on and then off again.
  • the invention also includes a corresponding application system, as can already be seen 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 those used in... DE 10 2010 019 612 A1 is known.
  • an application technology 1 supplies an application device 2 with the necessary media, such as the coating material to be applied, which can be, for example, a paint.
  • 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 emits a coating agent jet 5, wherein the coating agent jets 5 are initially continuous over a decay length L in the jet direction immediately after exiting the application nozzles 4 and then subsequently break up into droplets, whereby the droplet breakup is specifically accelerated in this conventional application system 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 such that the application distance d is greater than the decay length L ⁇ sub>decay ⁇ /sub> . This means that the coating agent jets 5 do not strike the component 6 with their continuous range, but rather as a sequence of droplets.
  • Figure 2 shows a modification of the conventional application system according to Figure 1 in the direction of the invention.
  • Figure 2 partially corresponds to the conventional application system described above, so that, to avoid repetition, reference is made to the preceding description, using the same reference numerals 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 such that the application distance d is smaller than the decay length L ⁇ sub>CORROT ⁇ /sub> . This means that the coating agent jets 5 strike the surface of the component 6 with their continuous area in the direction of travel, resulting in a better coating result.
  • the droplet disintegration of the coating agent jets 5 is not specifically forced by vibration coupling, since droplet disintegration is precisely what the invention aims to prevent.
  • the application system according to the invention enables the application of sharply defined patterns, as in the Figures 3A-3C and 4A-4C is shown and explained below.
  • FIGS 3B and 3C In contrast, they show examples of conventional strips with more or less frayed edges of the strip.
  • Figure 7 shows a schematic representation of strip 7 to illustrate the edge sharpness of strip 7.
  • strip 7 exhibits, compared to a
  • the specified edge profile exhibits a maximum deviation a, wherein the deviation a is preferably less than 3 mm, 1 mm or 0.5 mm within the scope of the invention. This makes it possible, for example, to produce decorative stripes with a high-quality appearance on a motor vehicle body.
  • the Figures 6A-6D The figures show in schematic form the application of a coating layer to a component 9, wherein the component 9 is laterally bounded by two edges 10, 11.
  • the coating material webs are applied by means of an application device 12, the application device 12 being able to emit coating material jets 13 as already described above.
  • the application device 12 is first brought laterally to the component 9, as shown in Figure 6A is shown, with the coating medium jet 13 initially still switched off, since the coating medium jet 13 would not hit the component 9 if the application device 12 were still located laterally next to the edge 10 of the component 9.
  • the application device 12 is then guided over the surface of the component 9 with the coating medium jet 13 switched on, as shown in Figure 6C is shown.
  • the coating medium jet 13 When passing the opposite edge 11 of component 9, the coating medium jet 13 is then switched off again, as shown in Figure 6D This is shown because the coating medium jet 13 would no longer hit the surface of the component 9 if the application device 12 were subsequently moved further beyond the edge 11 of the component 9.
  • the precise switching on and off of the coating medium jet 13 is made possible by detecting the positions of the application device 12 and the component 9 using 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 also be used, which can be fixed in the vicinity of the application device and the component, but can also be moved with the application device.

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) émission de plusieurs jets de produit de revêtement (5 ; 13) à partir de plusieurs buses d'application (4) 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,
    b) positionnement de l'appareil d'application (2 ; 12) par rapport au composant (6 ; 9) avec une distance d'application (d) entre l'appareil d'application (2 ; 12) et le composant (6 ; 9), de façon à ce que les jets de produit de revêtement (5 ; 13) arrivent sur le composant (6 ; 9) et revêtent le composant (6 ; 9), dans lequel les jets de produit de revêtement (5 ; 13) appliquent un motif sur le composant (6 ; 9),
    caractérisé en ce que
    c) au moins certaines des buses d'application (4) sont contrôlées indépendamment les unes des autres et
    d) dans les buses d'application (4) contrôlables indépendamment les unes les autres, le débit volumique du produit de revêtement à travers les buses d'application (4) est contrôlable indépendamment et
    e) le motif présente des bords nets avec des écarts maximaux (a) d'un tracé de bord prédéterminé de 3 mm maximum et sans projection de produit de revêtement hors du motif et
    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).
  2. Procédé d'application selon la revendication 1, caractérisé en ce que
    a) les jets de produit de revêtement (5 ; 13) sont déplacés plusieurs fois au-dessus du composant (6 ; 9) pour la réalisation du motif, dans lequel une bande de produit de revêtement est appliquée à chaque fois et
    b) les jets de produit de revêtement adjacents s'étendent les uns dans les autres après l'application puis forment une brande unique ou
    c) les jets de produit de revêtement adjacents ne s'étendent pas les uns dans les autres après l'application puis forment deux bandes séparées ou plus.
  3. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) le motif comprend une bande du produit de revêtement et
    b) la bande présente une largeur de 1 mm minimum et
    c) la bande présente une largeur de 1 m, 10 cm, 5 cm, 2 cm, 1 cm, 5 mm ou 2 mm maximum.
  4. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que
    a) les jets de produit de revêtement (5, 13) sont orientées parallèlement entre eux et
    b) la distance entre les jets de produit de revêtement (5, 13) immédiatement adjacents est telle que les jets de produit de revêtement (5, 13) adjacents ne se combinent pas entre l'appareil d'application (2 ; 12) et le composant (6 ; 9) et
    c) les buses d'application (4) sont prévues avec un diamètre interne de buse déterminé et une distance déterminée entre les buses, dans lequel la distance entre les buses est au moins égale à trois fois, quatre fois ou six fois le diamètre interne des buses.
  5. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que, dans les buses d'application (4) contrôlables indépendamment, au moins une des grandeurs de fonctionnement suivantes est contrôlable indépendamment :
    a) vitesse de sortie du produit de revêtement à partir des buses d'application (4),
    b) type de produit de revêtement.
  6. Procédé d'application selon l'une des revendications précédentes, caractérisé en ce que l'appareil d'application (2 ; 12) est déplacé par rapport au composant (6 ; 9) pendant l'application du produit de revêtement.
  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 de 10 cm/s, 50 cm/s ou 1 m/s minimum et
    c) le composant (6 ; 9) est déplacé, pendant l'application du produit de revêtement, avec une vitesse de 10 m/s ou 5 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 de 10 cm/s, 20 cm/s,30 cm/s, 50 cm/s, 1 m/s ou 2 m/s minimum et
    c) l'appareil d'application (2 ; 12) est déplacé, pendant l'application du produit de revêtement, avec une vitesse de 250 cm/s, 700 mm/s, 500 mm/s ou 100 mm/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) parcoure une trajectoire avec son point d'incidence sur la surface du composant et
    b) le jet de produit de revêtement (5 ; 13) est désactivé puis à 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 au-dessus de la surface du composant de façon assez lente et est désactivé et réactivé de façon assez rapide pour obtenir, sur le composant (6 ; 9), une résolution inférieure à 5 mm, 2 mm ou 1 mm.
  10. Procédé d'application selon l'une des revendications précédentes, caractérisé les étapes suivantes :
    a) approche de l'appareil d'application (2 ; 12) d'une arête (10) du composant (6 ; 9) à revêtir 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 (6 ; 9) à revêtir 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 les étapes suivantes :
    a) détection de la position dans l'espace du composant (6 ; 9) à revêtir et
    b) détection 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 détectée du composant (6 ; 9) et/ou du jet de produit de revêtement (5 ; 13) et
    d) désactivation du jet de produit de revêtement (5 ; 13) en fonction de la position détectée du composant (6 ; 9) et/ou de l'appareil d'application (2 ; 12).
  12. Procédé d'application selon la revendication 11, caractérisé en ce que la position est détectée au moyen
    a) d'une caméra (14),
    b) d'un capteur d'ultrasons,
    c) d'un capteur inductif,
    d) d'un capteur capacitif,
    e) d'un capteur à laser et/ou
    f) d'une commande de robot dans 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 de 80 %, 90 %, 95 % ou 99 % minimum, de façon à ce que tout le produit de revêtement appliqué soit déposé entièrement sur le composant (6 ; 9), sans pulvérisation excessive et
    b) le procédé d'application présente une performance de revêtement de surface de 0,5 m2/min, 1 m2/min ou 3 m2/min minimum 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'impact sur le composant (6 ; 9) et
    d) la vitesse de sortie du produit de revêtement hors de l'appareil d'application (2 ; 12) est de 5 m/s, 7 m/s ou 10 m/s minimum et
    e) la vitesse de sortie du produit de revêtement hors de l'appareil d'application (2 ; 12) est de 30 m/s, 20 m/s ou 10 m/s maximum et
    f) la distance d'application (d) est de 4 mm, 10 mm ou 40 mm minimum et
    g) la distance d'application (d) est de 200 mm ou 100 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 produit de revêtement est une peinture à l'eau ou une peinture à solvants et
    k) le jet de produit de revêtement (5 ; 13) est activé ou désactivé avec une durée de commutation inférieure à 50 ms, 20 ms, 10 ms, 5 ms ou 1 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) avec plusieurs buses d'application (4) pour l'émission de plusieurs jets 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, et
    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 les jets de produit de revêtement (5 ; 13) arrivent sur le composant (6 ; 9) et revêtent le composant (6 ; 9), dans lequel les jets de produit de revêtement (5 ; 13) appliquent un motif sur le composant (6 ; 9),
    caractérisée en ce que
    c) au moins certaines des buses d'application (4) sont contrôlables indépendamment les unes des autres et
    d) dans les buses d'application (4) contrôlables indépendamment les unes des autres, le débit volumique du produit de revêtement à travers les buses d'application (4) est contrôlable indépendamment et
    e) le motif présente des bords nets avec des écarts maximaux (a) par rapport à un bord prédéterminé de 3 mm maximum et sans projection de produit de revêtement hors du motif, et
    f) que le dispositif de positionnement positionne l'appareil d'application (2 ; 12) par rapport à le composant (6 ; 9) de telle sorte que la distance d'application (d) soit inférieure à la longueur de désintégration (LZERFALL) du jet de produit de revêtement (5 ; 13), de sorte que le jet de produit de revêtement (5 ; 13) frappe le composant (6 ; 9) avec sa zone cohérente.
  15. Installation d'application selon la revendication 14, caractérisé en ce que
    a) l'appareil d'application (2 ; 12) comprend une plaque de buse dans laquelle sont disposées les buses d'application et
    b) les buses d'application émettent chacune un jet de produit de revêtement (5 ; 13), dans lequel les jets de produit de revêtement (5, 13) produisent conjointement, sur le composant (6 ; 9), une bande et
    c) la bande présente une largeur de 1 mm minimum et
    d) la bande présente une largeur de 1 m, 10 cm, 5 cm, 2 cm, 1 cm, 5 mm, 2 mm, 1 mm, 400 µm ou 200 µm maximum.
EP20209960.2A 2013-02-11 2014-02-03 Procédé d'application et système d'application Active EP3804863B2 (fr)

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CN104994966B (zh) 2019-08-06
MY177584A (en) 2020-09-21
JP6906031B2 (ja) 2021-07-21
JP2016507372A (ja) 2016-03-10
US11117160B2 (en) 2021-09-14
US11872588B2 (en) 2024-01-16
HUE061173T2 (hu) 2023-05-28
PL3804863T5 (pl) 2026-02-23
US20210379620A1 (en) 2021-12-09
MX369366B (es) 2019-11-06
WO2014121916A1 (fr) 2014-08-14
WO2014121916A8 (fr) 2014-10-09
PL3804863T3 (pl) 2023-02-13
EP2953732A1 (fr) 2015-12-16
ES2934076T3 (es) 2023-02-16
CN104994966A (zh) 2015-10-21
JP2020022965A (ja) 2020-02-13
ES2934076T5 (en) 2026-03-02
EP3804863A1 (fr) 2021-04-14
EP2953732B1 (fr) 2020-12-02
JP6608703B2 (ja) 2019-11-20
EP3804863B1 (fr) 2022-10-19
ES2856182T3 (es) 2021-09-27
US20150375258A1 (en) 2015-12-31
MX2015009529A (es) 2015-10-30
DE102013002412A1 (de) 2014-08-14

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