EP3414017B1 - Dispositif d'isolation ainsi que système de revêtement le comprenant - Google Patents

Dispositif d'isolation ainsi que système de revêtement le comprenant Download PDF

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Publication number
EP3414017B1
EP3414017B1 EP17704465.8A EP17704465A EP3414017B1 EP 3414017 B1 EP3414017 B1 EP 3414017B1 EP 17704465 A EP17704465 A EP 17704465A EP 3414017 B1 EP3414017 B1 EP 3414017B1
Authority
EP
European Patent Office
Prior art keywords
line
insulation
coating
coating material
clearing body
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
EP17704465.8A
Other languages
German (de)
English (en)
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EP3414017A1 (fr
Inventor
Ralph Meier
Jan Reichler
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.)
B+M SURFACE SYSTEMS GmbH
Original Assignee
Eisenmann SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eisenmann SE filed Critical Eisenmann SE
Publication of EP3414017A1 publication Critical patent/EP3414017A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1481—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet comprising pigs, i.e. movable elements sealingly received in supply pipes, for separating different fluids, e.g. liquid coating materials from solvent or air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1616—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material
    • B05B5/1625—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom
    • B05B5/1633—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive and the arrangement comprising means for insulating a grounded material source from high voltage applied to the material the insulating means comprising an intermediate container alternately connected to the grounded material source for filling, and then disconnected and electrically insulated therefrom the arrangement comprising several supply lines arranged in parallel, each comprising such an intermediate container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
    • B05B5/16—Arrangements for supplying liquids or other fluent material
    • B05B5/1608—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive
    • B05B5/1675—Arrangements for supplying liquids or other fluent material the liquid or other fluent material being electrically conductive the supply means comprising a piston, e.g. a piston pump

Definitions

  • the invention relates to an insulation device and a coating system for coating objects, the coating system comprising an electrostatically operating application device with a dispensing device, by means of which a coating material can be dispensed, and at least one storage container for coating material, which has an inlet line with an inlet valve device and a supply line is connected to the dispensing device.
  • such coating systems are used to coat objects such as vehicle bodies or body parts using the electrostatically operating application device.
  • the coating material for example a paint
  • the coating material released is ionized in the electric field and transported to the object to be coated by means of electrostatic forces.
  • the object is usually at ground potential.
  • Such an application device can be, for example, a high-speed rotary atomizer, in which the dispensing device comprises a rotating bell cup from which the smallest paint droplets are thrown off. The resulting paint mist is ionized in the electric field and thus transported to the object to be coated.
  • the input valve device can be, for example, a so-called color changer, which is fed with different media from ring lines. If, for example, the color shade is to be changed between two coating processes, the dispensing device must be supplied with a different coating material. In order to be able to carry out such a color change in a time-efficient manner, two supply lines are often provided in modern coating systems. In order to During a coating process, the application device can be supplied with a first coating material from a supply line and a second supply line with a second coating material can be prepared at the same time. This reduces the color change time.
  • the corresponding line sections are cleaned with a detergent and then blown dry with compressed air to build up an electrical insulation gap.
  • the pamphlet DE 10 2005 0 01765 A1 describes an electrical separating unit for a fluid delivery line, which has an elongated separating tube which can be released or closed at its ends by separating valves.
  • the interior of the separator tube can be brought to a pressure well above atmospheric pressure by a compressor or evacuated to a pressure well below atmospheric pressure by a suction pump.
  • the electrical resistance of the separating unit has a significantly higher value than if a corresponding length of pipe was only cleaned of paint, solvent or cleaning agent and filled with air.
  • the pamphlet DE 199 26514 A1 describes a potential separation device for electrically insulated conveyance of a conductive fluid medium from a first potential to a second potential.
  • the device comprises two pistons arranged within a chamber, an inlet opening arranged in the chamber wall for introducing a medium between the two pistons and an outlet opening arranged in the chamber wall at a distance from the inlet opening with respect to the displacement axis.
  • the distance between the inlet and outlet ports depending on the length of the between the pistons enclosed flow rate is selected so that during the promotion in each case a potential separation between inlet opening flow rate and / or flow rate and outlet opening is guaranteed.
  • the pamphlet EP 0 400 34535 AA1 describes an electrical insulation device in the form of a pipe section for a conductive liquid.
  • the device includes an insulating housing that houses a moveable device.
  • a stretchable tube section is connected between one end of the housing and the mobile device.
  • the mobile device has an O-ring for scraping a surface in the housing.
  • the insulation device according to the invention is provided for a coating system for coating objects, the coating system comprising an electrostatically operating application device with a dispensing device, by means of which a coating material can be dispensed, and at least one storage container for coating material, the storage container having an inlet line with an inlet valve device and is connected to the dispensing device via a supply line.
  • the isolation device comprises a channel with a clearing body that can be moved in the channel.
  • the broaching body includes an electrically insulating material and is moveable between a parked position and an isolated position.
  • the clearing body can be moved by means of fluid pressure and is designed in such a way that when it moves from the parking position to the insulating position or from the insulating position to the parking position, it frees material from an inner lateral surface of the duct, so that an electrical insulating gap exists between the reservoir and the inlet valve device is trainable.
  • this clearing movement together with the electrically insulating material of the clearing body can create an electrical insulating gap.
  • the movement of the clearing body can advantageously be generated exclusively by fluid pressure.
  • the fluid moving the clearing body can be understood to mean, for example, a coating material, an insulating material, a flushing material or compressed air.
  • the fluid pressure can be transmitted to the reaming body, for example, by direct contact between the fluid and the reaming body, or by indirect contact, such as through a pig body which contacts the reaming body and is itself subjected to the fluid pressure.
  • the clearing body has an insulation section for electrical insulation and a line section for a material line.
  • the clearing body can represent an insulation gap with the insulation section in a first position, for example the insulation position, and thus form a potential separation.
  • the clearing body with the line section can allow coating material, for example, to be passed through the clearing body.
  • the clearing body has a longitudinal axis in the direction of movement and the insulation section and line section are arranged along this longitudinal axis.
  • a movement of the broaching body along the longitudinal axis depending on the position of the broaching body, enables the broaching body to implement both an insulation function and a conduction function.
  • the insulating section defines an insulating space in the channel. If the broaching body moves into the insulating position, the inner lateral surface of the duct can be cleared of possibly conductive material. On the other hand, the clearing body with its insulating section forms an insulating space within the channel in the insulating position, which enables potential isolation.
  • the insulation space can be filled with an insulation material.
  • the line section has a coating material line. It is thus possible to conduct coating material through the clearing body, in particular through the coating material line. This can be provided in particular in the parking position of the clearing body. In this position, it can be provided that the clearing body does not provide any electrical isolation, for example.
  • the coating material line has a first line connection lying radially to the direction of movement and a second line connection lying on an end face of the clearing body.
  • the clearing body can have a cylindrical basic shape, for example. With such a basic shape, the first line connection can be arranged, for example, on the outer circumference of the cylindrical basic shape. In this way, coating material can be supplied to the clearing body, for example via the first line connection accessible on its outer circumference, and discharged again via the second line connection located on the front side.
  • the conveying direction can also be reversed.
  • another fluid that requires potential isolation can also be supplied and discharged via the first and the second line connection.
  • the radial line connection in the insulating position enables a line connection between the coating material line and the storage container and/or the front line connection enables a line connection between the coating material line and the dispensing device.
  • this enables coating material to be fed in, for example, via the line section of the clearing body, while the insulating section enables electrical isolation between the application device and the rest of the coating system.
  • the object is also achieved by a coating system for coating objects according to claim 8.
  • the coating system according to the invention for coating objects comprises an electrostatically operating application device with a dispensing device, by means of which a coating material can be dispensed, and at least one storage container for coating material, which is connected to an inlet valve device via an inlet line and to the dispensing device via a supply line.
  • the coating system comprises an insulation device, as described above.
  • figure 1 shows a schematic representation of a coating system 10 for coating objects, such as vehicle bodies or add-on parts therefor, which are not specifically shown.
  • the coating system 10 includes an electrostatically operating application device 12, shown only schematically, which is designed as a high-speed rotary atomizer 14 with a rotating bell plate 16 in the exemplary embodiment shown in the figures.
  • the application device 12 includes a delivery line 18 through which coating material can be delivered onto an object.
  • the discharge line 18 leads to the bell cup 16 of the high-speed rotary atomizer 14.
  • the bell cup 16 and the discharge line 18 thus form a discharge device 19.
  • the application device 12 can optionally be supplied with coating material from two supply lines 20, 21.
  • a first supply line 20 and a second supply line 21 of identical construction are provided. Both supply lines 20, 21 extend between an inlet valve device 22 and an outlet valve device 24.
  • the input valve device 22 is designed as a color changer 26 which can be supplied with different media from ring lines 28 .
  • the inlet valve device 22 is also connected to a working line 30 via which a working fluid such as compressed air or a flushing agent can be supplied.
  • the working line 30 can also serve as a disposal line for discharging material from the system. Alternatively, a separate disposal line can also be provided for this purpose.
  • the working line 30 can be connected to a valve device, not specifically shown, which can connect the working line 30 to a compressed air source, a flushing agent source and/or an outlet. If further lines are referred to as working lines in the following are used, they fulfill the same purpose and are connected to a corresponding valve device and material sources as well as an outlet, depending on the requirements.
  • the input valve device 22 can - as in figure 1 shown - be formed in one piece. In a modification, a separate inlet valve device or even smaller divided inlet valve devices are conceivable for each supply line.
  • Each supply line 20, 21 includes a storage container 32, 33 in the form of a piston dispenser 34, 35, from which the application device 12 can be fed via a supply line 36, 37.
  • the piston metering device 34, 35 merely illustrates an example of a storage container 32, 33 for coating material.
  • the dispensing line 18 is connected to an outlet valve device 24, into which the respective supply line 36, 37 of each supply line also flows 20, 21 ends.
  • the outlet valve means 24 can also be connected to working lines 38 for compressed air/flushing agent/disposal and has appropriately associated valves 241-245 for controlling the various lines and line sections lying within the outlet valve means 24.
  • the piston dispensers 34, 35 each comprise a cylinder 40, 41, in each of which a piston 42, 43 can be moved with the aid of a piston drive, which is not specifically shown.
  • the pistons 42, 43 each delimit a working chamber 44, 45 with the cylinders 40, 41.
  • the respective working chamber 44, 45 is connected to its associated supply line 36, 37 via a metering valve unit 46, 47 in each case.
  • the dosing valve units 46, 47 each have valves 461-465 and 471-475 for the corresponding lines and line sections.
  • the metering valve unit 46, 47 can be designed as a structural unit with the piston metering device 34, 35 in order to represent a compact and lightweight component with short line lengths.
  • the respective working chamber 44 , 45 is connected to an inlet line 48 , 49 via the respective dosing valve unit 46 , 47 .
  • a first working line 50, 51 which can serve as a drain line, for example
  • a second working line 54, 55 which, as shown in the figures, can each be connected to the color changer 26, open into the respective dosing valve unit 46, 47.
  • the first and the second working line can be used, for example, for compressed air/washing-up liquid or as a disposal line.
  • the inlet lines 48, 49 each extend between the color changer 26 and the respective piston dispenser 34, 35 and can, for example, each include a piggable line section 481, 491.
  • a pig 482, 492 is shown in each case in the piggable line section 481, 491 of the figures.
  • an isolation device 100, 101 is provided between the reservoirs 32, 33, in particular the piston dispensers 34, 35, on the one hand, and the application device 12 on the other.
  • each insulation device 100, 101 is connected via the respective supply line 36, 37 to the application device 12, via a respective coating material delivery line 52, 53 to the respective piston metering device 34, 35, in particular the respective metering valve unit 46, 47, and connected to the color changer 26 via the respective inlet line 48, 49.
  • the insulation devices 100, 101 each have other connections to working lines and/or insulation material, as will be explained in more detail below.
  • the respective isolation device 100, 101 can also form a structural unit with the respective piston metering device 34 and optionally with the respective metering valve unit 46, 47. As already mentioned, this enables a particularly short line routing and a compact and lightweight design, which, for example, allows attachment to a lower arm of an articulated-arm robot (in conjunction with attachment of the application device 19 to the wrist of such an articulated-arm robot, separate from the piston metering device).
  • the figure 2 shows an enlarged view of the isolation device 100.
  • the isolation device 100 includes a clearing body 102, which can be moved back and forth in a channel 104 with an inner lateral surface 106 along a movement direction X.
  • the broaching body 102 is in the Figures 1-3 shown in a sectional view.
  • the channel 104 has two different cross sections along the direction of movement X.
  • a curly bracket a line area 112 provided with a larger cross-sectional area, also denoted by a curly bracket.
  • other proportions could also be provided.
  • the clearing body 102 is made of an electrically insulating material and, in the embodiment shown in the figures, has an essentially cylindrical basic shape along its direction of movement X, which, viewed one behind the other along the direction of movement X, is divided into an insulating section 114 and a line section 116 - again by curly Brackets denoted - can be divided.
  • the outer geometry of the clearing body 102 in the insulation section 114 and in the line section 116 is complementary, at least in sections, to the inner cross section of the respective region 110, 112 of the duct 104.
  • other complementary basic shapes are also conceivable, which shift against one another along a specific path along a direction of movement to let.
  • an insulation space 120 is formed in the insulation section 114 between the outer surface of the broaching body 102 .
  • the insulation space 120 is connected via connections 122, 124 to incoming and outgoing lines 126, 128.
  • the supply line 126 has a valve 1261
  • the discharge line 128 has a valve 1281.
  • the insulation chamber 120 can be flushed with a flushing medium, for example, and/or filled with an insulation material and an insulation medium via the supply line 126 and the discharge line 128 can be discharged again.
  • the insulation material is usually located in the insulation chamber 120 during the coating process and can be exchanged in the event of contamination via the connections 122, 124 and the associated working lines 126, 128 when the valves 1261, 1281 are in the appropriate position.
  • the insulation section 114 is always located in the insulation area 110, which has a smaller channel cross-section, for example, while the line section 116 of the clearing body 102 also moves partly into this insulation area 110 and partly in the line area 112.
  • the line section 116 of the clearing body 102 has a comparable external geometry.
  • Section 132 is followed by a section 136 which also has a reduced cross-sectional area and thus also forms a space 138 between the outer surface of section 136 and the inner lateral surface 106 of channel 104 .
  • the space 138 is also accessible from the outside via a connection 140 and a working line 1401 with a valve 1402 .
  • This section 136 is followed by a section 142 which, in terms of its outer contour, is designed to be complementary to the inner lateral surface 106 of the line region 112 and thus has a larger cross-sectional area than the sections 130, 132.
  • the line section 116 of the clearing body 102 has a line channel 144 which has a section 146 running along the direction of movement X and a section 148 running radially to the direction of movement X.
  • the section 146 has a mouth 150, the duct 144 with the interior of the line area 112 of channel 104 connects.
  • the radial line channel section 148 has a connection 152 which connects the line channel 144 via the coating material discharge line 52 to the piston metering device 34 , in particular the metering device valve unit 46 .
  • the coating material discharge line 52 has a valve 521 for opening and closing the coating material discharge line 52 .
  • first stop 154 which limits a movement of the broaching body 102 within the channel 104 in a first direction.
  • a second stop 156 forms the transition from the line area 112 to the insulation area 110 of the channel 104, which is associated with a stepped reduction in the inner cross-sectional area.
  • the sections 130, 132 and 142 are designed such that no passage of a fluid is possible between the outer surface of the sections 130, 132 and 142 and the inner lateral surface 106. This can be achieved, for example, by suitable sealing means or by a suitable choice of the geometries of the interacting surfaces. Should coating material still adhere to the inner lateral surface 106 when the clearing body 102 moves, this can be removed from the inner lateral surface 106 by the movement of the clearing body 102 .
  • An intermediate space is formed between the end face 131, which is opposite the mouth 150, and the pig body 482, which is located in the inlet line 48 can be set.
  • the materials contained in the pipes or containers are identified as follows: air: crosshatched, coating material: vertically hatched, flushing agent: obliquely hatched, and insulating medium: dotted.
  • valves 461-465 and 471-475 of metering valve unit 46 and 47 valves 241-245 of outlet valve unit 24, valve 521 of coating material delivery line 52, valves 1261, 1281 of lines 126 , 128, the valve 485 of the line 483 and the valve 1402 of the line 1401 at the connection 140 are closed.
  • figure 3 shows the coating system 10 of FIG figure 1 .
  • the isolation devices 100, 101 are shown only partially in section.
  • valve 1281 has been closed and the coating material has been conveyed in the direction of the application device 19 to such an extent that the pig 482 has reached the clearing body 102 of the insulation device 100 and has already pushed it along a little.
  • the movement of the broaching body 102 makes the space 138 smaller.
  • the valve 1402 is in its open position.
  • the movement of the clearing body 102 can also be additionally supported pneumatically.
  • a rinsing agent is introduced via the working line 54 into a rinsing agent chamber (not shown separately) of the piston dispenser 34 .
  • the valves 463, 465 of the metering valve unit 46 are in an open position, and the valves 461, 462, 464 of the metering valve unit 46 are in a closed position. This amount of detergent can be used in a later process step.
  • connection 152 is free in the inlet line 48 for the conveyed coating material, which connects the insulation device 100 via the discharge line 52 to the metering valve unit 46 and thus to the piston metering device 34.
  • FIG 5 12 shows how the piston meter 34 is filled with coating material via the inlet line 48, the isolator 100, the discharge line 52 and the meter-valve assembly 46.
  • the valves 461, 463 of the dosing valve unit 46 are closed and the valves 462, 465 are open.
  • the valve 521 of the discharge line 52 is also open, so that the coating material can be pressed out of the discharge line 48, in particular the piggable section 481, via the connection 152 into the working chamber 44 of the piston dispenser 34.
  • the position of the broaching body 102 shown is the isolating position.
  • the insulation section 114 of the broaching body 102 see figure 2
  • the insulation space 120 is usually permanently filled with an insulation medium.
  • the insulating medium can be exchanged via the connections 122, 124 and the associated working lines 126, 128.
  • the insulating position and the contact pressure between the clearing body 102 and the color changer 26 are secured by suitable measures.
  • the coating material is pressed on, starting from the piston metering device 34 via the metering valve unit 46, the coating material discharge line 52, the connection 152, the line channel 144, the mouth 150, the channel 104, which opens into the supply line 36 after the stop 154, the outlet valve device 24 and the discharge line 18 to the bell cup 16.
  • the valves 465, 462 of the metering valve unit 46, the valve 521 of the discharge line 52 and the valve 242 are the outlet -Valve unit 24 open.
  • the insulating space 120 is filled with an insulating medium, if this has not happened.
  • the valves 1281 and 1261 are open, so that the insulating medium can be fed in via the line 128 and excess insulating medium can be discharged via the line 126 .
  • the other valves are closed.
  • the parts of the coating system 10 that are electrically connected to the dispensing device 12 are also under high voltage. Due to the conductivity of the coating material, this includes all lines carrying the coating material, and thus in particular the piston metering device 34 and parts of the insulation device 100.
  • the boundary between parts under high voltage and the rest of the system is in figure 8 indicated as a dot-dash line A.
  • the border runs through the still empty or already cleaned supply line of the second supply line 21, the empty working line 1401 of the connection 140 of the isolation device 100, the actual isolation space 120 (represented by an elliptical border) and through the emptied second working line 54, which connects the color changer 26 to the dosing valve unit 46 (also represented by an elliptical border),
  • the line system of the first supply line 20 wetted with coating material is flushed with flushing agent and the remaining coating material is pushed back into the line 48 .
  • this first rinsing process can still be carried out with high voltage applied.
  • the high voltage is then switched off and the paint application path, comprising the dispensing line 18, the lines and valves wetted in the outlet valve unit 24, the supply line 36, the channel 104 of the insulation device 100, the coating material dispensing line 52 and the corresponding line sections of the metering valve unit 46 with further addition of detergent, for example from the working lines 54, 38 cleaned.
  • the valves 465, 463, 462 of the metering valve unit 46, the valve 521 of the discharge line 52 and the valves 241, 242 of the outlet valve unit 24 are open.
  • the section of the supply line 20 used for the previous coating is blown clear. This is in figure 10 shown.
  • the valves 463, 465, 462 of the metering valve unit 46, the valve 521 of the discharge line 52 and the valves 242, 243 of the outlet valve unit 24 are open, the valves 461, 464 of the metering valve unit 46 and the valves 241, 244, 245 of the outlet valve device 24 are closed.
  • the compressed air can be supplied or discharged, for example, via the lines 54, 38.
  • the process of filling the piston dispenser 35 with coating material and the filling of the insulating chamber 121 with insulating medium is completed in the second supply line 21 .
  • the clearing body 103 of the insulation device 101 of the second supply line 21 is already in the insulation position and the second coating material has already been pressed onto the outlet valve unit 24 .
  • FIG figure 11 shows the potential separation of the application device 12, the parts of the insulation device 101 electrically connected to the application device 12 and the piston metering device 33 from the rest of the coating system resulting from the position of the clearing body 103 in the insulating position and the emptied working line 55.
  • FIG figure 11 represented by the dot-dash line B.
  • the border runs through the empty supply line of the first supply line 20, the empty working line of the ventilation connection of the insulation device 101 of the second supply line 21, the actual insulation space of the insulation device 101 (represented by an elliptical border) and through the emptied second working line 55 of the second supply line 21 , which connects the color changer 26 to the metering valve unit 47 of the second supply line 21 (also represented by an elliptical border).
  • the piggable section 481 and optionally the inlet line 48 can be flushed in the supply line 20 .
  • the flushing medium via the line 483 with the valve 485 open, the pig 482 can be pushed back and the inlet line 84 can be cleaned.
  • the two-part design of the paint supply system results in low paint losses and a short color change time due to the alternate filling of the supply lines 20, 21.

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  • Electrostatic Spraying Apparatus (AREA)
  • Spray Control Apparatus (AREA)

Claims (8)

  1. Dispositif d'isolation (100) pour un système de revêtement pour le revêtement d'objets, dans lequel le système de revêtement comporte un dispositif d'application fonctionnant de manière électrostatique, pourvu d'un dispositif de distribution, qui permet de distribuer un matériau de revêtement, et d'au moins un réservoir pour le matériau de revêtement, qui est relié via une conduite d'entrée à un dispositif de soupape d'entrée et via une conduite d'alimentation au dispositif de distribution,
    dans lequel le dispositif d'isolation (100) comprend un canal (104) pourvu d'un corps d'évacuation (102) pouvant être déplacé dans le canal (104),
    dans lequel le corps d'évacuation (102) présente un matériau électriquement isolant et peut être déplacé entre une position d'attente et une position d'isolation,
    dans lequel le corps évacuation (102) est conçu de manière telle que le corps d'évacuation (102) débarrasse une surface enveloppante interne (106) du canal (104) de matériau de revêtement lors d'un mouvement de la position d'attente vers la position d'isolation ou de la position d'isolation vers la position d'attente de telle sorte qu'une zone d'isolation électrique peut être réalisée entre le réservoir et le dispositif de soupape d'entrée,
    dans lequel le corps d'évacuation (102) peut être déplacé au moyen d'une pression fluidique et
    dans lequel le corp d'évacuation (102) comprend une section d'isolation (114) pour l'isolation électrique et une section de conduite (116) pour une conduite de matériau de revêtement.
  2. Dispositif d'isolation selon la revendication 1, dans lequel le corps d'évacuation (102) comprend un axe longitudinal (X) dans la direction du mouvement et la section d'isolation (114) et la section de conduite (116) sont agencées le long dudit axe longitudinal (X).
  3. Dispositif d'isolation selon la revendication 1 ou 2, dans lequel la section d'isolation (114) définit un espace d'isolation (120) dans le canal (104).
  4. Dispositif d'isolation selon la revendication 3, dans lequel l'espace d'isolation (120) est remplissable avec un matériau d'isolation.
  5. Dispositif d'isolation selon l'une quelconque des revendications 1 à 4, dans lequel la section de conduite (116) comprend une conduite de matériau de revêtement (144).
  6. Dispositif d'isolation selon la revendication 5, dans lequel la conduite de matériau de revêtement (144) comprend un premier raccord de conduite (152) situé radialement par rapport à la direction de mouvement et un deuxième raccord de conduite (150) situé sur une face frontale du corps d'évacuation.
  7. Dispositif d'isolation selon la revendication 6, dans lequel le raccord de conduite (152) radial en position d'isolation permet une connexion de conduite entre la conduite de matériau de revêtement (144) et le réservoir et / ou le raccord de conduite (150) sur la face frontale permet une connexion de conduite entre la conduite de matériau de revêtement (144) et le dispositif de distribution.
  8. Système de revêtement (10) pour le revêtement d'objets comportant
    un dispositif d'application (12) fonctionnant de manière électrostatique, pourvu d'un dispositif de distribution (16, 18), qui permet de distribuer un matériau de revêtement, et d'au moins un réservoir (32) pour le matériau de revêtement, qui est relié via une conduite d'entrée (54) à un dispositif de soupape d'entrée (22) et via une conduite d'alimentation (36) au dispositif de distribution (16, 18),
    caractérisée en ce que
    le système de revêtement (10) comprend un dispositif d'isolation (100) selon l'une quelconque des revendications 1 à 7.
EP17704465.8A 2016-02-10 2017-02-10 Dispositif d'isolation ainsi que système de revêtement le comprenant Active EP3414017B1 (fr)

Applications Claiming Priority (2)

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DE102016001544.6A DE102016001544A1 (de) 2016-02-10 2016-02-10 Isolationseinrichtung sowie Beschichtungssystem hiermit
PCT/EP2017/053009 WO2017137562A1 (fr) 2016-02-10 2017-02-10 Dispositif d'isolation ainsi que système de revêtement le comprenant

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EP (1) EP3414017B1 (fr)
CN (1) CN108602078B (fr)
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WO (1) WO2017137562A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102016001544A1 (de) * 2016-02-10 2017-08-10 Eisenmann Se Isolationseinrichtung sowie Beschichtungssystem hiermit
CN114160341A (zh) * 2021-12-10 2022-03-11 北京兴信易成机电工程有限公司 一种走珠式快速换色油漆供给系统

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Also Published As

Publication number Publication date
EP3414017A1 (fr) 2018-12-19
CN108602078A (zh) 2018-09-28
US10898917B2 (en) 2021-01-26
CN108602078B (zh) 2021-06-22
US20190047005A1 (en) 2019-02-14
WO2017137562A1 (fr) 2017-08-17
DE102016001544A1 (de) 2017-08-10

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