EP1504823B1 - Spray coating apparatus with a remote display device - Google Patents

Spray coating apparatus with a remote display device Download PDF

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Publication number
EP1504823B1
EP1504823B1 EP04016671A EP04016671A EP1504823B1 EP 1504823 B1 EP1504823 B1 EP 1504823B1 EP 04016671 A EP04016671 A EP 04016671A EP 04016671 A EP04016671 A EP 04016671A EP 1504823 B1 EP1504823 B1 EP 1504823B1
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EP
European Patent Office
Prior art keywords
high voltage
spray
coating apparatus
display unit
spray coating
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.)
Expired - Lifetime
Application number
EP04016671A
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German (de)
French (fr)
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EP1504823A1 (en
Inventor
Thomas Dr. Scholz
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.)
Carlisle Fluid Technologies Germany GmbH
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ITW Oberflaechentechnik GmbH
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Publication of EP1504823A1 publication Critical patent/EP1504823A1/en
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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
    • B05B12/004—Arrangements for controlling delivery; Arrangements for controlling the spray area comprising sensors for monitoring the delivery, e.g. by displaying the sensed value or generating an alarm
    • 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
    • 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
    • B05B5/08—Plant for applying liquids or other fluent materials to objects
    • B05B5/10—Arrangements for supplying power, e.g. charging power
    • 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
    • B05B5/025—Discharge apparatus, e.g. electrostatic spray guns
    • B05B5/053—Arrangements for supplying power, e.g. charging power
    • B05B5/0531—Power generators

Definitions

  • the invention relates to a spray coating device for spray coating of articles.
  • the coating material may be a liquid, e.g. Example, paint, in particular paint, or a coating powder which is sprayed onto a coating article and then permanently connected by heat treatment with the article.
  • the spray device may be a handgun or a machine-held automatic spraygun.
  • a spray coating device with a control device according to the preamble of claim 1 is known, by which electrical energy can be supplied via an electrical line to an electrical spraying device.
  • the spray device is designed for spraying coating material onto an object to be coated and has at least one high-voltage electrode for electrostatically charging the coating material.
  • the controller of the conventional spray coating apparatus is configured to set at least one coating operation parameter.
  • the control unit may further comprise an optical display device for optically displaying at least coating operation information.
  • a remote control is provided in the conventional spray coating, with the wireless control unit can be controlled
  • an electrostatic hand spray gun for spray coating of articles which has at least one high voltage electrode for electrostatic charging of coating material.
  • the spray gun may be designed to spray coating powder or to coat with coating liquid.
  • the display panel of the voltage indicator may be observed by a person holding the spray gun during the spray coating operation without having to turn the head away from the line of sight of the spray and the object to be coated.
  • the document describes an embodiment in which the voltage indicator is connected to a high voltage generator located in the spray gun.
  • a light-emitting diode is connected via an electrical resistor to the primary side of a transformer, on the secondary side of a cascade circuit for generating a DC high voltage for the high voltage electrode is connected.
  • the transformer and the light emitting diode are located in a transformer housing, which is arranged on the spray gun and releasably attached to the spray gun.
  • the voltage indicator may include an incandescent lamp, a voltmeter, or a similar voltage-responsive optical display instead of a light emitting diode.
  • a high voltage generator in the spray gun with or without high voltage transformer on or in the spray gun, has the advantage that for the electrical power from a controller to the spray gun no high voltage cable, but a low voltage cable is required, which has a much lower weight and less stiffness as a high voltage cable.
  • the high voltage generator Prior to integrating a high voltage generator into a spray gun, the high voltage generator was housed in the controller, which is still possible but not normally done.
  • a low DC voltage is usually supplied from the controller via a low voltage line of the spray gun, and converted by a housed in the spray gun high voltage generator in a DC high voltage in the range between 4000 volts to 140000 volts or higher.
  • the current flowing through the electrode high-voltage electron flow and / or per unit time funded amount of coating material, and / or per unit time conveyed amount of compressed air, for example, for atomization of the coating material or for forming the coating material spray, and / or changes of Air pressure, can lead to a deterioration of the coating quality. Therefore, a person should constantly observe the sprayed spray and the object to be coated.
  • the voltage indicator in the cited prior art supports the person in that they at the handle of the spray gun the Spraying operation only starts after the high voltage is switched on, and that the person immediately stops the spraying process by releasing the trigger of the spray gun, if the high voltage fails or falls below a certain minimum value.
  • the current voltage value can be recognized by the person if the voltage display device contains a voltmeter instead of LEDs.
  • the operator receives additional coating operation information, such as high voltage electrode current setpoint, high voltage electrode current feedback, maximum allowable high voltage limit, operating mode holding high voltage constant, and / or operating mode holding high voltage electrode current constant the operator must avert the alignment of his / her head from the spray and the object to be coated, for example, in the direction of the object to be coated on the control unit, to which operating parameters are adjustable and which is usually provided with display devices for said information.
  • additional coating operation information such as high voltage electrode current setpoint, high voltage electrode current feedback, maximum allowable high voltage limit, operating mode holding high voltage constant, and / or operating mode holding high voltage electrode current constant the operator must avert the alignment of his / her head from the spray and the object to be coated, for example, in the direction of the object to be coated on the control unit, to which operating parameters are adjustable and which is usually provided with display devices for said information.
  • a display device which is permanently or permanently connected to the spray device with great difficulty, has the disadvantage that the spray device sometimes has to be cleaned with cleaning agent, for example with solvent, but the display device is not resistant to cleaning agent or solvents.
  • a further disadvantage is that in the event of a defect in the display device, device replacement is expensive or, if the display device is permanently connected to the injection device, the entire spray device must be replaced.
  • Yet another disadvantage is that when coating back surfaces or cavities of the article to be coated, the spray device must be moved very close or into the article, and sprayed coating material thereby reaches the display device.
  • a spray coating device comprising a control device, by which electrical energy can be fed via an electrical line of an electrical spray device, which is designed for spraying coating material on an object to be coated and at least one high voltage electrode for electrostatically charging the coating material by means of a high voltage; wherein the controller is configured to set at least one coating operation parameter; and containing at least one optical display device, which is for optically displaying at least one coating operation information and for receiving this coating operation information from the control device is trained; characterized in that the control device is a transmitter for the wireless data transmission of the at least one coating operation information to be displayed and the display device is a receiver for the wireless data reception of the at least one coating operation information.
  • the spray device, the display device and the control unit can be positioned, used and cleaned independently of each other.
  • the indicator can be positioned at any location where it will not contaminate or hinder the use of the sprayer or controller.
  • the display device need not be replaced or disassembled, and in the event of a malfunction of the display device, the spray device or the control device need not be replaced or disassembled. This results in inexpensive spare parts options.
  • the wireless remote data transmission has compared to the data transmission through lines, z.
  • FIG. 1 shows an electronic control unit 2 and an electrostatic spray gun 4 which can be manually operated by a person 6 and switched on and off by actuating a trigger 8 in order to spray coating material in the form of a spray jet 10 onto an object 11 to be coated.
  • the control unit 2 on the one hand has a power supply connection 12 and on the other hand connected via a power cable 14 with the spray gun 4 for supplying electrical energy to at least one high voltage electrode 15 to the high voltage electrode 15, an electrical high voltage potential in the range between 1000 and 160000 volts relative to ground potential to electrostatically charge the coating material and generate an electromagnetic field between the at least one high voltage electrode 15 and the article 11 to be coated.
  • the control unit 2 is designed so that at the high voltage electrode 15 not only a single high voltage value, but various high voltage values are selectively adjustable by a control element 16.
  • the controller 2 includes a light 18, which lights up when the high voltage is switched on and not lit at high voltage , and / or a display device 20 to which at least one information, for. B. the set high voltage setpoint and / or the respective high voltage actual value, and / or the target current and / or the actual current of the high voltage electrode 15 is optically displayed.
  • the spray gun 4 is connected by a coating material tube 22 to a coating material conveyor 24 for conveying coating material from a supply container 26 to the spray gun 4 and through it for atomization on a spray head 28 of the spray gun 4, see that the spray jet 10 is generated.
  • a constant flow rate per unit time coating material can be promoted by the conveyor 24, but the flow rate per unit time is preferably adjustable via a control line 25 on the control unit 2, z. B. by an automatic control or manually on a control element 28.
  • On the same display device or preferably on another display device 30 of the control unit 2 is at least one information regarding the coating material optically displayed, z. B. a parameter, for. B. a target value of the flow rate of coating material per unit time, or an actual value of the flow rate, or a value dependent on the value in question.
  • the controller 2 includes a high voltage generator 32, so that via the electric cable 14, the high voltage to the at least one electrode 15 of the spray gun 4 is transmitted, whereas in the embodiment of Figure 2, which is the preferred embodiment over Figure 1, the controller 2 does not include a high voltage generator 32, but a voltage converter 34, which from the mains voltage of the mains voltage terminal 12 a lower voltage, preferably a DC voltage of, for example, 12 volts or 24 volts generated, which is supplied via a low voltage cable 35 to a housed in the spray gun 4 high voltage generator 36.
  • the at least one High voltage electrode 15 connected to the high voltage side of the high voltage generator 36 is instead of or in addition to the display devices z. B. 20 and / or 30 of the control unit 2 at least one, relative to the control unit 2 external, display device 40 is provided, which is designed for the optical display of at least one relevant for the coating operation information regarding the high voltage or the coating material or both. This information is preferably the same as that mentioned above for the display devices 20 and 30 of the control unit 2.
  • the control unit 2 includes a transmitter 42 for the wireless transmission of at least one coating operation information to be displayed and the control unit 2 spatially independent external display device 40 includes a receiver 44 for wireless data reception of at least one coating operation information of the control unit 2.
  • the transmitter 42 and the receiver 44 are shown schematically in the drawings as antennas, which protrude from the device in question, but are preferably each fully integrated in the control unit 2 and in the external display device 40.
  • the wireless external display device 40 is preferably designed such that it does not require an external power supply for its operation, for example, no mains connection.
  • the energy required for the operation of the external display device 40 may come from an external power source or from an internal power source, e.g. As a battery or a rechargeable battery, which is used in the external display device 40, or preferably by the spray device, for. B. spray gun 4, z. B. via electrical contacts, of which at least one is provided on the spray device and at least one other on the display device and both are engageable with each other.
  • Such information is z. B. high voltage on, high voltage off, high voltage setpoint, high voltage feedback, high voltage electrode current setpoint, high voltage electrode current feedback, maximum allowable high voltage electrode current limit, operating mode hold high voltage constant, and / or hold operating mode high voltage electrode current constant.
  • the display panel 46 of the external display device 40 is preferably a flat panel display in one of the techniques plasma display panel (PDP), vacuum fluorescent display panel (VFD), light emitting diode panel (LED) or liquid crystal diode panel (LCD). ,
  • PDP plasma display panel
  • VFD vacuum fluorescent display panel
  • LED light emitting diode panel
  • LCD liquid crystal diode panel
  • the external display device 40 is preferably provided with a first quick-fastening means with which it can be quickly fastened and released again at a second quick-fastening means. This can be plugged into one another and can be latched into one another, or clamped or fastened to one another or can be fastened to one another or hook-fastened to one another.
  • the second quick fastener may be attached or formed on the spray gun or on another carrier.
  • the other carrier may be the object to be coated itself or an element which is arranged behind or next to the object to be coated or the spray gun 4, for example a support device which also carries the object to be coated.
  • the two quick fasteners may have contacts for transmitting electrical energy to the display device 40.
  • the spray gun is provided with a fastening means for attachment to a carrier, said fastening means being a hook, a band or a chain or other means can, which is attachable to the spray gun or to another carrier, without the spray gun or the other carrier also has a fastener.
  • the attachment means may be a band or ring which can grip around the spray gun or other carrier to be held thereon.
  • According to another embodiment of the invention may be attached to the external display device 40, a bracelet or an arm ring, with which the display device on the arm of a person can be fastened.
  • the external display device 40 is positioned so that its display panel 46 faces directly from the front or obliquely from the front of the face of a person 6, which has its face directed to the spray 10 or the article to be coated 11, which is in the spray area of the spray gun 4th located.
  • FIG. 3 shows the rear side of the spray gun 4 together with the external indicator 40 attached thereto.
  • the external indicator 40 has on its underside a quick-fastening means 50, e.g. B. in the form of a plug-in device, which with a second quick-fastening means 52, z. B. in the form of a plug-in device, which is formed or fixed on the top of the spray gun 4.
  • the two matching quick-release means 50, 52 may, for. B. be a tongue and groove connection, z. B. with dovetail connector cross-section.
  • the external display device 40 may have one or more display panels 46 or display panel 46 may display one or more different information.
  • the invention also includes automatic spray guns other than handguns.

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  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Description

Die Erfindung betrifft eine Spritzbeschichtungseinrichtung zum Spritzbeschichten von Gegenständen.The invention relates to a spray coating device for spray coating of articles.

Das Beschichtungsmaterial kann eine Flüssigkeit, z. B. Farbe, insbesondere Lack, oder ein Beschichtungspulver sein, welches auf einen Beschichtungsgegenstand gesprüht und danach durch Wärmebehandlung mit dem Gegenstand dauerhaft verbunden wird. Die Spritzvorrichtung kann eine Handspritzpistole oder eine maschinell gehaltene Automatikspritzpistole sein.The coating material may be a liquid, e.g. Example, paint, in particular paint, or a coating powder which is sprayed onto a coating article and then permanently connected by heat treatment with the article. The spray device may be a handgun or a machine-held automatic spraygun.

Aus dem Dokument US 2003/059523 A1 ist eine Spritzbeschichtungseinrichtung mit einem Steuergerät nach dem Oberbegriff des Anspruchs 1 bekannt, durch welches elektrische Energie über eine elektrische Leitung einer elektrischen Spritzvorrichtung zuführbar ist. Die Spritzvorrichtung ist zum Sprühen von Beschichtungsmaterial auf einen zu beschichtenden Gegenstand ausgebildet und weist zumindest eine Hochspannungselektrode zum elektrostatischen Aufladen des Beschichtungsmaterials auf. Ferner ist das Steuergerät der herkömmlichen Spritzbeschichtungseinrichtung zum Einstellen von mindestens einem Beschichtungsbetriebs-Parameter ausgebildet. Auch kann des weiteren das Steuergerät ein optisches Anzeigegerät aufweisen, um zumindest eine Beschichtungsbetriebs-Information optisch anzuzeigen. Des weiteren ist bei der herkömmlichen Spritzbeschichtungseinrichtung eine Fernbedienung vorgesehen, mit der kabellos das Steuergerät angesteuert werden kannFrom the document US 2003/059523 A1 a spray coating device with a control device according to the preamble of claim 1 is known, by which electrical energy can be supplied via an electrical line to an electrical spraying device. The spray device is designed for spraying coating material onto an object to be coated and has at least one high-voltage electrode for electrostatically charging the coating material. Further, the controller of the conventional spray coating apparatus is configured to set at least one coating operation parameter. Furthermore, the control unit may further comprise an optical display device for optically displaying at least coating operation information. Furthermore, a remote control is provided in the conventional spray coating, with the wireless control unit can be controlled

Aus der Patentschrift DE 34 02 945 C2 (korrespondiert zu GB 2 153 260 A) ist eine elektrostatische Handspritzpistole zum Sprühbeschichten von Gegenständen bekannt, welche mindestens eine Hochspannungselektrode zum elektrostatischen Aufladen von Beschichtungsmaterial aufweist. An der Spritzpistole ist ein Spannungsanzeigegerät mit nach hinten gerichtetem Anzeigefeld zur Anzeige eines optischen Signals in Abhängigkeit von der jeweiligen Spannung der Hochspannungselektrode vorgesehen. Die Spritzpistole kann zum Spritzen von Beschichtungspulver oder zum Beschichten mit Beschichtungsflüssigkeit ausgebildet sein. Das nach hinten gerichtete Anzeigefeld des Spannungsanzeigegerätes kann von einer Person, welche die Sprühpistole hält, während des Spritzbeschichtungsvorganges beobachtet werden, ohne den Kopf von der Blickrichtung auf den Sprühstrahl und den zu beschichtenden Gegenstand abwenden zu müssen. Das Dokument beschreibt eine Ausführungsform, bei welcher das Spannungsanzeigegerät an einen Hochspannungserzeuger angeschlossen ist, welcher sich in der Spritzpistole befindet. Eine Leuchtdiode ist über einen elektrischen Widerstand an die Primärseite eines Transformators angeschlossen, an dessen Sekundärseite eine Kaskadenschaltung zur Erzeugung einer Gleichspannungs-Hochspannung für die Hochspannungselektrode angeschlossen ist. Der Transformator und die Leuchtdiode befinden sich in einem Transformatorgehäuse, welches auf der Spritzpistole angeordnet und an der Spritzpistole lösbar befestigt ist. Eine schnelle Trennung des Transforrnatorgehäuses von der Spritzpistole ist jedoch nicht möglich wegen elektrischen Leitungen, durch welche der im Transformatorgehäuse untergebrachte Transformator mit der in der Spritzpistole untergebrachten Kaskadenschaltung verbunden ist. Das Spannungsanzeigegerät kann eine Glühlampe, ein Voltmeter oder ein ähnliches spannungsabhängiges optisches Anzeigegerät anstatt einer Leuchtdiode aufweisen. Die Unterbringung eines Hochspannungserzeugers in der Spritzpistole, mit oder ohne Hochspannungstransformator an oder in der Spritzpistole, hat den Vorteil, dass für die elektrische Energiezufuhr von einem Steuergerät zur Spritzpistole kein Hochspannungskabel, sondern ein Niederspannungskabel erforderlich ist, welches ein wesentlich geringeres Gewicht und weniger Steifheit hat als ein Hochspannungskabel. Vor der Integrierung eines Hochspannungserzeugers in eine Spritzpistole war der Hochspannungserzeuger im Steuergerät untergebracht, was auch heute noch möglich ist, aber normalerweise nicht gemacht wird. Heute wird üblicherweise eine niedrige Gleichspannung vom Steuergerät über eine Niederspannungsleitung der Spritzpistole zugeführt, und durch einen in der Spritzpistole untergebrachten Hochspannungserzeuger in eine Gleichspannungs-Hochspannung im Bereich zwischen 4000 Volt bis 140000 Volt oder höher umgewandelt.From the patent DE 34 02 945 C2 (corresponding to GB 2 153 260 A), an electrostatic hand spray gun for spray coating of articles is known, which has at least one high voltage electrode for electrostatic charging of coating material. On the spray gun is a voltage indicator with backward display panel for displaying an optical signal in Dependent on the respective voltage of the high voltage electrode provided. The spray gun may be designed to spray coating powder or to coat with coating liquid. The display panel of the voltage indicator may be observed by a person holding the spray gun during the spray coating operation without having to turn the head away from the line of sight of the spray and the object to be coated. The document describes an embodiment in which the voltage indicator is connected to a high voltage generator located in the spray gun. A light-emitting diode is connected via an electrical resistor to the primary side of a transformer, on the secondary side of a cascade circuit for generating a DC high voltage for the high voltage electrode is connected. The transformer and the light emitting diode are located in a transformer housing, which is arranged on the spray gun and releasably attached to the spray gun. However, a rapid separation of the Transforrnatorgehäuses from the spray gun is not possible because of electrical lines through which the housed in the transformer housing transformer is connected to the accommodated in the spray gun cascade circuit. The voltage indicator may include an incandescent lamp, a voltmeter, or a similar voltage-responsive optical display instead of a light emitting diode. The placement of a high voltage generator in the spray gun, with or without high voltage transformer on or in the spray gun, has the advantage that for the electrical power from a controller to the spray gun no high voltage cable, but a low voltage cable is required, which has a much lower weight and less stiffness as a high voltage cable. Prior to integrating a high voltage generator into a spray gun, the high voltage generator was housed in the controller, which is still possible but not normally done. Today, a low DC voltage is usually supplied from the controller via a low voltage line of the spray gun, and converted by a housed in the spray gun high voltage generator in a DC high voltage in the range between 4000 volts to 140000 volts or higher.

Bereits kleine Änderungen des Hochspannungswertes, des über die Elektrode fließenden Hochspannungs-Elektronenstromes und/oder der pro Zeiteinheit geförderten Beschichtungsmaterialmenge, und/oder der pro Zeiteinheit geförderten Druckluftmenge, beispielsweise zur Zerstäubung des Beschichtungsmaterials oder zur Formung des Beschichtungsmaterial-Sprühstrahles, und/oder Änderungen des Luftdruckes, können zu einer Verschlechterung der Beschichtungsqualität führen. Deshalb sollte eine Person den versprühten Sprühstrahl und das zu beschichtende Objekt ständig beobachten. Die Spannungsanzeige bei dem genannten Stand der Technik unterstützt die Person darin, dass sie am Drücker der Spritzpistole den Spritzbetrieb jeweils erst startet, nachdem die Hochspannung eingeschaltet ist, und dass die Person den Spritzvorgang durch Loslassen des Drückers der Spritzpistole sofort stoppt, falls die Hochspannung ausfällt oder unter einen bestimmten Mindestwert absinkt. Den jeweils aktuellen Spannungswert kann die Person erkennen, wenn das Spannungsanzeigegerät an Stelle von Leuchtdioden ein Voltmeter enthält.Even small changes in the high voltage value, the current flowing through the electrode high-voltage electron flow and / or per unit time funded amount of coating material, and / or per unit time conveyed amount of compressed air, for example, for atomization of the coating material or for forming the coating material spray, and / or changes of Air pressure, can lead to a deterioration of the coating quality. Therefore, a person should constantly observe the sprayed spray and the object to be coated. The voltage indicator in the cited prior art supports the person in that they at the handle of the spray gun the Spraying operation only starts after the high voltage is switched on, and that the person immediately stops the spraying process by releasing the trigger of the spray gun, if the high voltage fails or falls below a certain minimum value. The current voltage value can be recognized by the person if the voltage display device contains a voltmeter instead of LEDs.

Von Vorteil ist es jedoch, wenn die Bedienperson zusätzliche Beschichtungsbetriebs-Informationen erhält, beispielsweise Hochspannungs-Elektrodenstrom-Sollwert, Hochspannungs-Elektrodenstrom-Istwert, maximal zulässiger Hochspannungs-Grenzwert, Betriebsmodus Hochspannung konstant halten und/oder Betriebsmodus Hochspannungs-Elektrodenstrom konstant halten, ohne dass die Bedienperson die Ausrichtung seines/ihres Kopfes von dem Sprühstrahl und von dem zu beschichtenden Objekt abwenden muss, beispielsweise in Richtung von dem zu beschichtenden Gegenstand weg auf das Steuergerät, an welchem Betriebsparameter einstellbar sind und welches üblicherweise mit Anzeigegeräten für die genannten Informationen versehen ist.It is advantageous, however, if the operator receives additional coating operation information, such as high voltage electrode current setpoint, high voltage electrode current feedback, maximum allowable high voltage limit, operating mode holding high voltage constant, and / or operating mode holding high voltage electrode current constant the operator must avert the alignment of his / her head from the spray and the object to be coated, for example, in the direction of the object to be coated on the control unit, to which operating parameters are adjustable and which is usually provided with display devices for said information.

Ein Anzeigegerät, welches an der Spritzvorrichtung dauerhaft oder nur mit großem Zeitaufwand entfernbar verbunden ist, hat den Nachteil, das die Spritzvorrichtung manchmal mit Reinigungsmittel gereinigt werden muss, beispielsweise mit Lösungsmittel, das Anzeigegerät jedoch nicht reinigungsmittelbeständig oder lösemittelbeständig ist. Ein weiterer Nachteil besteht darin, dass bei einem Defekt des Anzeigegerätes ein Geräteaustausch teuer ist oder, wenn das Anzeigegerät mit der Spritzvorrichtung unlösbar verbunden ist, die gesamte Spritzvorrichtung ersetzt werden muss. Ein nochmals weiterer Nachteil besteht darin, dass beim Beschichten von Rückseiten oder Hohlräumen des zu beschichtenden Gegenstandes die Spritzvorrichtung sehr nahe oder in den Gegenstand hinein bewegt werden muss, und dabei versprühtes Beschichtungsmaterial auf das Anzeigegerät gelangt. In einem solchen Falle wäre es vorteilhaft, das Anzeigegerät nicht an der Spritzvorrichtung, sondern getrennt von der Spritzvorrichtung, jedoch weiterhin in einem Bereich vor der Person anzuordnen, wo das Anzeigegerät von der Person beobachtbar ist, ohne dass die Person ihre auf den Sprühstrahl oder den zu beschichtenden Gegenstand nach vorne gerichtete Kopfrichtung verändern oder wesentlich verändern muss, um sowohl den Sprühstrahl und den zu beschichtenden Gegenstand als auch das Anzeigefeld des Anzeigegerätes zu beobachten. Beispielsweise kann es in einem solchen Falle vorteilhaft sein, das Anzeigegerät an den zu beschichtendem Objekt oder an einem hinter oder unmittelbar neben dem zu beschichtenden Objekt vorgesehenen Träger anzuordnen.A display device, which is permanently or permanently connected to the spray device with great difficulty, has the disadvantage that the spray device sometimes has to be cleaned with cleaning agent, for example with solvent, but the display device is not resistant to cleaning agent or solvents. A further disadvantage is that in the event of a defect in the display device, device replacement is expensive or, if the display device is permanently connected to the injection device, the entire spray device must be replaced. Yet another disadvantage is that when coating back surfaces or cavities of the article to be coated, the spray device must be moved very close or into the article, and sprayed coating material thereby reaches the display device. In such a case, it would be advantageous not to place the display device on the sprayer, but separate from the sprayer, but still in an area in front of the person where the indicator is from the person is observable without the person having to change or significantly alter their head direction directed towards the spray or article to be coated in order to observe both the spray and the object to be coated and the display of the display. For example, in such a case it may be advantageous to arrange the display device on the object to be coated or on a support provided behind or immediately adjacent to the object to be coated.

Durch die Erfindung soll die Aufgabe gelöst werden, unter Vermeidung der genannten Nachteile die genannten Vorteile zu erzielen, insbesondere die Spritzbeschichtungseinrichtung derart auszubilden, dass die örtliche Position, Betriebsfähigkeit, Reinigungsmöglichkeit, und Lebensdauer der Spritzvorrichtung unabhängig ist von dem Anzeigegerät, jedoch das Anzeigegerät auch örtlich unabhängig von dem Steuergerät ist und dadurch an einem Ort positionierbar ist, wo sein Anzeigefeld von einer Person sichtbar ist, deren Gesicht direkt oder schräg auf den Sprühstrahl oder den zu beschichtenden Gegenstand gerichtet ist, der sich im Sprühstrahl befindet.By the invention, the object to be achieved while avoiding the disadvantages mentioned to achieve the above advantages, in particular the spray coating device such that the local position, operability, cleaning ability, and life of the spray device is independent of the display device, but the display device also locally is independent of the control device and is thereby positionable at a location where its display panel is visible to a person whose face is directed directly or obliquely on the spray or the object to be coated, which is located in the spray.

Diese Aufgabe wird gemäß der Erfindung durch die Merkmale von Anspruch 1 gelöst.This object is achieved according to the invention by the features of claim 1.

Demgemäss wird die Aufgabe gemäß der Erfindung gelöst durch eine Spritzbeschichtungseinrichtung enthaltend ein Steuergerät, durch welches elektrische Energie über eine elektrische Leitung einer elektrischen Spritzvorrichtung zuführbar ist, welche zum Sprühen von Beschichtungsmaterial auf einen zu beschichtenden Gegenstand ausgebildet ist und mindestens eine Hochspannungselektrode zum elektrostatischen Aufladen des Beschichtungsmaterials mittels einer Hochspannung aufweist; wobei das Steuergerät zum Einstellen von mindestens einem Beschichtungsbetriebs-Parameter ausgebildet ist; und enthaltend mindestens ein optisches Anzeigegerät, welches zum optischen Anzeigen mindestens einer Beschichtungsbetriebs-Information und zum Empfangen dieser Beschichtungsbetriebs-Information von dem Steuergerät ausgebildet ist; dadurch gekennzeichnet, dass das Steuergerät einen Sender zur leitungslosen Datenübertragung der mindestens einen anzuzeigenden Beschichtungsbetriebs-Information und das Anzeigegerät einen Empfänger zum leitungslosen Datenempfang der mindestens einen Beschichtungsbetriebs-Information ausgebildet ist.Accordingly, the object is achieved according to the invention by a spray coating device comprising a control device, by which electrical energy can be fed via an electrical line of an electrical spray device, which is designed for spraying coating material on an object to be coated and at least one high voltage electrode for electrostatically charging the coating material by means of a high voltage; wherein the controller is configured to set at least one coating operation parameter; and containing at least one optical display device, which is for optically displaying at least one coating operation information and for receiving this coating operation information from the control device is trained; characterized in that the control device is a transmitter for the wireless data transmission of the at least one coating operation information to be displayed and the display device is a receiver for the wireless data reception of the at least one coating operation information.

Dadurch ergeben sich folgende Vorteile: Die Spritzvorrichtung, das Anzeigegerät und das Steuergerät können unabhängig voneinander positioniert, benutzt und gereinigt werden. Das Anzeigegerät ist an jedem beliebigen Ort positionierbar, wo es weder verschmutzt noch die Benutzung der Spritzvorrichtung oder das Steuergerät behindert. Bei einem Defekt der Spritzvorrichtung, oder des Steuergerätes, braucht nicht das Anzeigegerät ausgetauscht oder demontiert zu werden, und bei einem Defekt des Anzeigegerätes braucht nicht die Spritzvorrichtung oder das Steuergerät ersetzt oder demontiert zu werden. Dadurch ergeben sich preiswerte Ersatzteilmöglichkeiten. Die leitungslose Datenfernübertragung hat gegenüber der Datenübertragung durch Leitungen, z. B. elektrische Leitungen, die Vorteile, dass beliebige Distanzen zwischen den einzelnen Teilen einstellbar sind, ohne dass verschiedene Leitungslängen erforderlich sind; dass die einzelnen Teile mit größerer Variabilität positionierbar sind, und auch an Stellen, wo es bei Verwendung von Leitungen nicht möglich wäre; keine Datenübertragungsleitung, welche gereinigt werden müsste; Kosteneinsparung.This results in the following advantages: The spray device, the display device and the control unit can be positioned, used and cleaned independently of each other. The indicator can be positioned at any location where it will not contaminate or hinder the use of the sprayer or controller. In the event of a malfunction of the spray device, or of the control device, the display device need not be replaced or disassembled, and in the event of a malfunction of the display device, the spray device or the control device need not be replaced or disassembled. This results in inexpensive spare parts options. The wireless remote data transmission has compared to the data transmission through lines, z. As electrical lines, the advantages that any distances between the individual parts are adjustable without different cable lengths are required; that the individual parts can be positioned with greater variability, and also in places where it would not be possible to use cables; no data transmission line which would need to be cleaned; Cost saving.

Weitere Ausführungsformen der Erfindung sind in den Unteransprüchen enthalten.Further embodiments of the invention are contained in the subclaims.

Die Erfindung wird im Folgenden im Bezug auf die beiliegenden Zeichnungen anhand von bevorzugten Ausführungsformen als Beispiele beschrieben. In den Zeichnungen zeigen

  • Fig. 1 schematisch und unmaßstäblich eine bevorzugte Ausführungsform einer Spritzbeschichtungseinrichtung nach der Erfindung,
  • Fig. 2 schematisch und unmaßstäblich eine weitere Ausführungsform einer Spritzbeschichtungseinrichtung nach der Erfindung,
  • Fig. 3 eine Rückansicht einer Spritzpistole mit einem daran lösbar befestigten Anzeigegerät gemäß einer besonderen Ausführungsform der Erfindung.
The invention will now be described by way of example with reference to the accompanying drawings, given by way of preferred embodiments. In the drawings show
  • 1 schematically and not to scale a preferred embodiment of a spray coating device according to the invention,
  • 2 schematically and not to scale another embodiment of a spray coating device according to the invention,
  • Fig. 3 is a rear view of a spray gun with a releasably secured thereto display device according to a particular embodiment of the invention.

Figur 1 zeigt ein elektronisches Steuergerät 2 und eine elektrostatische Spritzpistole 4, welche von einer Person 6 manuell tragbar und durch Betätigen eines Triggers 8 einschaltbar und ausschaltbar ist, um Beschichtungsmaterial in Form eines Sprühstrahles 10 auf einen zu beschichtenden Gegenstand 11 zu sprühen.FIG. 1 shows an electronic control unit 2 and an electrostatic spray gun 4 which can be manually operated by a person 6 and switched on and off by actuating a trigger 8 in order to spray coating material in the form of a spray jet 10 onto an object 11 to be coated.

Das Steuergerät 2 hat einerseits einen Stromnetzanschluss 12 und ist andererseits über ein Stromkabel 14 mit der Spritzpistole 4 verbunden zur Zufuhr von elektrischer Energie zu mindestens einer Hochspannungselektrode 15, um an der Hochspannungselektrode 15 ein elektrisches Hochspannungspotential im Bereich zwischen 1000 und 160000 Volt relativ zu Erdpotential zu erzeugen, um das Beschichtungsmaterial elektrostatisch aufzuladen und ein elektromagnetisches Feld zwischen der mindestens einen Hochspannungselektrode 15 und dem zu beschichtenden Gegenstand 11 zu erzeugen. Vorzugsweise ist das Steuergerät 2 so ausgebildet, dass an der Hochspannungselektrode 15 nicht nur ein einziger Hochspannungswert, sondern verschiedene Hochspannungswerte wahlweise einstellbar sind durch ein Bedienelement 16. Vorzugsweise enthält das Steuergerät 2 eine Leuchte 18, welche bei eingeschalteter Hochspannung leuchtet und bei ausgeschalteter Hochspannung nicht leuchtet, und/oder ein Anzeigegerät 20, an welchem mindestens eine Information, z. B. der eingestellte Hochspannungs-Sollwert und/oder der jeweilige Hochspannungs-Istwert, und/oder der Soll-Strom und/oder der Ist-Strom der Hochspannungselektrode 15 optisch anzeigbar ist.The control unit 2 on the one hand has a power supply connection 12 and on the other hand connected via a power cable 14 with the spray gun 4 for supplying electrical energy to at least one high voltage electrode 15 to the high voltage electrode 15, an electrical high voltage potential in the range between 1000 and 160000 volts relative to ground potential to electrostatically charge the coating material and generate an electromagnetic field between the at least one high voltage electrode 15 and the article 11 to be coated. Preferably, the control unit 2 is designed so that at the high voltage electrode 15 not only a single high voltage value, but various high voltage values are selectively adjustable by a control element 16. Preferably, the controller 2 includes a light 18, which lights up when the high voltage is switched on and not lit at high voltage , and / or a display device 20 to which at least one information, for. B. the set high voltage setpoint and / or the respective high voltage actual value, and / or the target current and / or the actual current of the high voltage electrode 15 is optically displayed.

Die Spritzpistole 4 ist durch einen Beschichtungsmaterial-Schlauch 22 an eine Beschichtungsmaterial-Fördereinrichtung 24 angeschlossen zur Förderung von Beschichtungsmaterial aus einem Versorgungsbehälter 26 zur Spritzpistole 4 und durch diese hindurch zur Zerstäubung an einem Sprühkopf 28 der Spritzpistole 4, so dass der Sprühstrahl 10 erzeugt wird. Vorzugsweise kann mittels der Fördervorrichtung 24 nicht nur eine konstante Fördermenge pro Zeiteinheit Beschichtungsmaterial gefördert werden, sondern die Fördermenge pro Zeiteinheit ist vorzugsweise über eine Steuerleitung 25 am Steuergerät 2 einstellbar, z. B. durch eine automatische Steuerung oder manuell an einem Bedienelement 28. Am gleichen Anzeigegerät oder vorzugsweise an einem anderen Anzeigegerät 30 des Steuergeräts 2 ist mindestens eine Information betreffend das Beschichtungsmaterial optisch anzeigbar, z. B. ein Parameter, z. B. ein Soll-Wert der Fördermenge an Beschichtungsmaterial pro Zeiteinheit, oder ein Ist-Wert der Fördermenge, oder ein von dem betreffenden Wert abhängiger Wert.The spray gun 4 is connected by a coating material tube 22 to a coating material conveyor 24 for conveying coating material from a supply container 26 to the spray gun 4 and through it for atomization on a spray head 28 of the spray gun 4, see that the spray jet 10 is generated. Preferably, not only a constant flow rate per unit time coating material can be promoted by the conveyor 24, but the flow rate per unit time is preferably adjustable via a control line 25 on the control unit 2, z. B. by an automatic control or manually on a control element 28. On the same display device or preferably on another display device 30 of the control unit 2 is at least one information regarding the coating material optically displayed, z. B. a parameter, for. B. a target value of the flow rate of coating material per unit time, or an actual value of the flow rate, or a value dependent on the value in question.

Die Fördervorrichtung 24 kann von verschiedener Art sein:

  • a) eine Druckluftvorrichtung, welche in dem Versorgungsbehälter 26 einen Überdruck erzeugt, welcher die Beschichtungsflüssigkeit in den Schlauch 22 drückt;
  • b) eine Flüssigkeitspumpe; oder
  • c) im Falle von Beschichtungspulver ein Injektor zur pneumatischen Pulverförderung; wie dies je aus dem Stand der Technik bekannt ist.
The conveyor 24 may be of various types:
  • a) a compressed air device which generates an overpressure in the supply container 26, which presses the coating liquid into the tube 22;
  • b) a liquid pump; or
  • c) in the case of coating powder, an injector for pneumatic powder conveying; as is known from the prior art.

Die Beschreibung der Ausführungsform von Figur 1 gilt uneingeschränkt auch für die Ausführungsform von Figur 2. Der Unterschied zwischen den beiden Ausführungsformen besteht darin, dass bei der Ausführungsform von Figur 1 das Steuergerät 2 einen Hochspannungserzeuger 32 enthält, so dass über das elektrische Leitungskabel 14 die Hochspannung zu der mindestens einen Elektrode 15 der Spritzpistole 4 übertragen wird, wohingegen bei der Ausführungsform von Figur 2, welche gegenüber Figur 1 die bevorzugte Ausführungsform ist, das Steuergerät 2 keinen Hochspannungserzeuger 32 enthält, sondern einen Spannungsumformer 34, welcher aus der Netzspannung des Netzspannungsanschlusses 12 eine niedrigere Spannung, vorzugsweise eine Gleichspannung von beispielsweise 12 Volt oder 24 Volt erzeugt, welche über ein Niederspannungskabel 35 einem in der Spritzpistole 4 untergebrachten Hochspannungserzeuger 36 zugeführt wird. In diesem Falle ist die mindestens eine Hochspannungselektrode 15 an die Hochspannungsseite des Hochspannungserzeugers 36 angeschlossen.
Bei beiden Beschichtungseinrichtungen von Figur 1 und 2 ist anstatt oder zusätzlich zu den Anzeigegeräten z. B. 20 und/oder 30 des Steuergerätes 2 mindestens ein, relativ zum Steuergerät 2 externes, Anzeigegerät 40 vorgesehen, welches für die optische Anzeige von mindestens einer für den Beschichtungsbetrieb relevanten Information ausgebildet ist betreffend die Hochspannung oder das Beschichtungsmaterial oder beide. Diese Informationen sind vorzugsweise die gleichen, die vorstehend zu den Anzeigegeräten 20 und 30 des Steuergerätes 2 genannt werden. Das Steuergerät 2 enthält einen Sender 42 zur leitungslosen Datenübertragung der mindestens einen anzuzeigenden Beschichtungsbetriebs-Information und das vom Steuergerät 2 räumlich unabhängige externe Anzeigegerät 40 enthält einen Empfänger 44 zum leitungslosen Datenempfang der mindestens einen Beschichtungsbetriebs-Information des Steuergerätes 2. Der Sender 42 und der Empfänger 44 sind in den Zeichnungen schematisch als Antennen dargestellt, welche aus dem betreffenden Gerät herausragen, sind jedoch vorzugsweise in das Steuergerät 2 beziehungsweise in das externe Anzeigegerät 40 je vollständig integriert.The description of the embodiment of Figure 1 applies without restriction to the embodiment of Figure 2. The difference between the two embodiments is that in the embodiment of Figure 1, the controller 2 includes a high voltage generator 32, so that via the electric cable 14, the high voltage to the at least one electrode 15 of the spray gun 4 is transmitted, whereas in the embodiment of Figure 2, which is the preferred embodiment over Figure 1, the controller 2 does not include a high voltage generator 32, but a voltage converter 34, which from the mains voltage of the mains voltage terminal 12 a lower voltage, preferably a DC voltage of, for example, 12 volts or 24 volts generated, which is supplied via a low voltage cable 35 to a housed in the spray gun 4 high voltage generator 36. In this case, the at least one High voltage electrode 15 connected to the high voltage side of the high voltage generator 36.
In both coating devices of Figure 1 and 2 is instead of or in addition to the display devices z. B. 20 and / or 30 of the control unit 2 at least one, relative to the control unit 2 external, display device 40 is provided, which is designed for the optical display of at least one relevant for the coating operation information regarding the high voltage or the coating material or both. This information is preferably the same as that mentioned above for the display devices 20 and 30 of the control unit 2. The control unit 2 includes a transmitter 42 for the wireless transmission of at least one coating operation information to be displayed and the control unit 2 spatially independent external display device 40 includes a receiver 44 for wireless data reception of at least one coating operation information of the control unit 2. The transmitter 42 and the receiver 44 are shown schematically in the drawings as antennas, which protrude from the device in question, but are preferably each fully integrated in the control unit 2 and in the external display device 40.

Dadurch können die für den Beschichtungsbetrieb relevanten Informationen für die Person 6 anstatt an Anzeigegeräten 20 und/oder 30 des Steuergerätes, oder zusätzlich, durch das externe Anzeigegerät 40 angezeigt werden. Das bezüglich der Signalübertragung leitungslose externe Anzeigegerät 40 ist vorzugsweise derart ausgebildet, dass es auch keine externe Energieversorgung für seinen Betrieb benötigt, beispielweise keinen Netzanschluss. Die für den Betrieb des externen Anzeigegerätes 40 benötigte Energie kann von einer externen Stromquelle oder von einer internen Stromquelle kommen, z. B. einer Batterie oder einem Akkumulator, die in das externe Anzeigegerät 40 einsetzbar ist, oder vorzugsweise von der Spritzvorrichtung, z. B. Spritzpistole 4, z. B. über elektrische Kontakte, von welchen mindestens einer an der Spritzvorrichtung und mindestens ein anderer an dem Anzeigegerät vorgesehen ist und beide miteinander in Eingriff bringbar sind.As a result, the information relevant for the coating operation can be displayed to the person 6 instead of to display devices 20 and / or 30 of the control device, or additionally, by the external display device 40. The wireless external display device 40 is preferably designed such that it does not require an external power supply for its operation, for example, no mains connection. The energy required for the operation of the external display device 40 may come from an external power source or from an internal power source, e.g. As a battery or a rechargeable battery, which is used in the external display device 40, or preferably by the spray device, for. B. spray gun 4, z. B. via electrical contacts, of which at least one is provided on the spray device and at least one other on the display device and both are engageable with each other.

Von allen für den Sprühbeschichtungsbetrieb relevanten Informationen ist mindestens eine auf dem externen Anzeigegerät 40 optisch anzeigbar. Solche Informationen sind z. B. Hochspannung eingeschaltet, Hochspannung ausgeschaltet, Hochspannungs-Sollwert, Hochspannungs-Istwert, Hochspannungs-Elektrodenstrom-Sollwert, Hochspannungs-Elektrodenstrom-Istwert, maximal zulässiger Hochspannungs-Elektrodenstrom-Grenzwert, Betriebsmodus Hochspannung konstant halten und/oder Betriebsmodus Hochspannungs-Elektrodenstrom konstant halten.Of all information relevant for the spray coating operation, at least one can be visually displayed on the external display device 40. Such information is z. B. high voltage on, high voltage off, high voltage setpoint, high voltage feedback, high voltage electrode current setpoint, high voltage electrode current feedback, maximum allowable high voltage electrode current limit, operating mode hold high voltage constant, and / or hold operating mode high voltage electrode current constant.

Das Anzeigefeld 46 des externen Anzeigegerätes 40 ist vorzugsweise ein Flachbildschirm in einer der Techniken Plasma-Display-Panel (PDP), Vakuum-Fluoreszenz-Displaypanel (VFD), Licht-Emitierende-Dioden-Panel(LED) oder Flüssigkristall-Diodenpanel (LCD).The display panel 46 of the external display device 40 is preferably a flat panel display in one of the techniques plasma display panel (PDP), vacuum fluorescent display panel (VFD), light emitting diode panel (LED) or liquid crystal diode panel (LCD). ,

Das externe Anzeigegerät 40 ist vorzugsweise mit einem ersten Schnellbefestigungsmittel versehen, mit welchem es an einem zweiten Schnellbefestigungsmittel vielmals schnell befestigbar und wieder lösbar ist. Dies können ineinander steckbare und ineinander einrastbare, oder aneinander festklemmbare oder aneinander einhängbare oder aneinander befestigbare Klettverschlussmittel oder aneinander befestigbare Reißverschlussmittel sein.The external display device 40 is preferably provided with a first quick-fastening means with which it can be quickly fastened and released again at a second quick-fastening means. This can be plugged into one another and can be latched into one another, or clamped or fastened to one another or can be fastened to one another or hook-fastened to one another.

Das zweite Schnellbefestigungsmittel kann an der Spritzpistole befestigt oder gebildet sein oder an einem anderen Träger. Der andere Träger kann der zu beschichtende Gegenstand selbst sein oder ein Element, welches hinter oder neben dem zu beschichtenden Gegenstand oder der Spritzpistole 4 angeordnet ist, beispielsweise eine Trägervorrichtung, welche auch den zu beschichtenden Gegenstand trägt. Die beiden Schnellbefestigungsmittel können Kontakte zur Übertragung von elektrischer Energie in das Anzeigegerät 40 aufweisen.The second quick fastener may be attached or formed on the spray gun or on another carrier. The other carrier may be the object to be coated itself or an element which is arranged behind or next to the object to be coated or the spray gun 4, for example a support device which also carries the object to be coated. The two quick fasteners may have contacts for transmitting electrical energy to the display device 40.

Gemäß anderer Ausführungsform ist vorgesehen, dass nur die Spritzpistole mit einem Befestigungsmittel zur Befestigung an einem Träger versehen ist, wobei diese Befestigungsmittel ein Haken, ein Band oder eine Kette oder anderes Mittel sein kann, welches an der Spritzpistole oder an einem anderen Träger befestigbar ist, ohne dass die Spritzpistole oder der andere Träger ebenfalls ein Befestigungsmittel hat. Beispielsweise kann das Befestigungsmittel ein Band oder Ring sein, welcher die Spritzpistole oder einen anderen Träger umgreifen kann, um daran festgehalten zu werden.According to another embodiment, it is provided that only the spray gun is provided with a fastening means for attachment to a carrier, said fastening means being a hook, a band or a chain or other means can, which is attachable to the spray gun or to another carrier, without the spray gun or the other carrier also has a fastener. For example, the attachment means may be a band or ring which can grip around the spray gun or other carrier to be held thereon.

Gemäß einer anderen Ausführungsform der Erfindung kann an dem externen Anzeigegerät 40 ein Armband oder ein Armring befestigt sein, mit welchem das Anzeigegerät am Arm einer Person befestigbar ist.According to another embodiment of the invention may be attached to the external display device 40, a bracelet or an arm ring, with which the display device on the arm of a person can be fastened.

Das externe Anzeigegerät 40 wird derart positioniert, dass sein Anzeigefeld 46 direkt von vorne oder schräg von vorne dem Gesicht einer Person 6 zugewandt ist, welche ihr Gesicht auf den Sprühstrahl 10 oder den zu beschichtenden Gegenstand 11 gerichtet hat, welcher sich im Sprühbereich der Spritzpistole 4 befindet.The external display device 40 is positioned so that its display panel 46 faces directly from the front or obliquely from the front of the face of a person 6, which has its face directed to the spray 10 or the article to be coated 11, which is in the spray area of the spray gun 4th located.

Figur 3 zeigt die Rückseite der Spritzpistole 4 zusammen mit dem daran befestigten externen Anzeigegerät 40. Das externe Anzeigegerät 40 hat auf seiner Unterseite ein Schnellbefestigungsmittel 50, z. B. in Form einer Steckvorrichtung, welche mit einem zweiten Schnellbefestigungsmittel 52, z. B. in Form einer Steckvorrichtung, verbindbar ist, welche auf der Oberseite der Spritzpistole 4 gebildet oder befestigt ist. Die beiden zusammenpassenden Schnellbefestigungsmittel 50, 52 können z. B. eine Nut-Feder-Verbindung sein, z. B. mit schwalbenschwanzförmigem Steckerquerschnitt.FIG. 3 shows the rear side of the spray gun 4 together with the external indicator 40 attached thereto. The external indicator 40 has on its underside a quick-fastening means 50, e.g. B. in the form of a plug-in device, which with a second quick-fastening means 52, z. B. in the form of a plug-in device, which is formed or fixed on the top of the spray gun 4. The two matching quick-release means 50, 52 may, for. B. be a tongue and groove connection, z. B. with dovetail connector cross-section.

Das externe Anzeigegerät 40 kann eines oder mehrere Anzeigefelder 46 haben oder im Anzeigefeld 46 können eine oder mehrere verschiedene Informationen anzeigbar sein.The external display device 40 may have one or more display panels 46 or display panel 46 may display one or more different information.

Die Erfindung umfasst außer Handspritzpistolen auch Automatikspritzvorrichtungen.The invention also includes automatic spray guns other than handguns.

Die zuvor beschriebenen Merkmalskombinationen stellen lediglich bevorzugte und vorteilhafte Ausführungsformen der erfindungsgemäßen Spritzbeschichtungseinrichtung dar. Allerdings ist die Erfindung nicht auf die hierin beschriebenen Merkmalskombination beschränkt. Vielmehr sind selbstverständlich auch andere Kombinationen der Merkmale denkbar, die unter den Schutzumfang der beigefügten Ansprüche fallen.The feature combinations described above represent only preferred and advantageous embodiments of the spray coating device according to the invention. However, the invention is not limited to the combination of features described herein. Rather, of course, other combinations of the features are conceivable, which fall within the scope of the appended claims.

Claims (12)

  1. Spray coating apparatus comprising a control unit (2), by which electrical energy can be supplied via an electric lead to an electrical spray device, which is designed for spraying coating material onto an object to be coated and has at least one high-voltage electrode for the electrostatic charging of the coating material by means of a high voltage, the control unit (2) being designed for setting at least one parameter of the coating operation, and comprising at least one optical display unit (40) for the optical display of at least one item of information on the coating operation, characterized in that the display unit (40) is a display unit which can be positioned externally of the control unit, in that the control unit (2) comprises a transmitter (42) for the wireless data transmission of the at least one item of information on the coating operation to be displayed and the external display unit (40) comprises a receiver (44) for the wireless data reception of the at least one item of information on the coating operation.
  2. Spray coating apparatus according to Claim 1, characterized in that the control unit (2) and the external display unit (40) are designed for the wireless data transmission of at least one of the following items of information on the coating operation: high voltage switched on, high voltage switched off, high voltage setpoint value, high voltage actual value, high-voltage electrode current setpoint value, high-voltage electrode current actual value, maximum permissible high-voltage electrode current limit value and/or operating mode of keeping high voltage constant or operating mode of keeping high-voltage electrode current constant.
  3. Spray coating apparatus according to Claim 1, characterized in that the control unit (2) and the external optical display unit (40) are designed for the wireless data transmission and for optical display of at least two of the following items of information on the coating operation: high voltage switched on, high voltage switched off, high voltage setpoint value, high voltage actual value, high-voltage electrode current setpoint value, high-voltage electrode current actual value, maximum permissible high-voltage electrode current limit value and/or operating mode of keeping high voltage constant or operating mode of keeping high-voltage electrode current constant.
  4. Spray coating apparatus according to any one of the preceding claims, characterized in that the at least one external optical display unit (40) has for the display of the at least one item of information a flat screen based on one of the techniques of a plasma display panel (PDP), a vacuum fluorescent display panel (VFD), a light-emitting diode panel (LED) or a liquid-crystal diode panel (LCD).
  5. Spray coating apparatus according to any one of the preceding claims, characterized in that the at least one external optical display unit (40) has a first quick fastening means, with which it can be fastened on and released again from a second quick fastening means quickly many times, the second quick fastening means being fastened or formed on a carrier.
  6. Spray coating apparatus according to Claim 5, characterized in that the two quick fastening means are clamping means which can be plugged one into the other or plugged one into the other and locked one into the other, or firmly clamped one onto the other, or Velcro fastening means which can be fastened one onto the other or zip fastening means which can be fastened one onto the other and/or hook and hook-receiving means for hooking one into the other.
  7. Spray coating apparatus according to Claim 5 or 6, characterized in that the second quick fastening means is fastened or formed on the spray device.
  8. Spray coating apparatus according to any one of Claims 1 to 4, characterized in that the least one external optical display unit (40) is provided with a quick fastening means for quick and releasable fastening on a carrier.
  9. Spray coating apparatus according to Claim 8, characterized in that the at least one external optical display unit (40) is provided with a quick fastening means for fastening on the spray device (4) .
  10. Spray coating apparatus according to Claim 8 or 9, characterized in that the quick fastening means has a plug-in device, a clamping device, a hook or a lift-up ring.
  11. Spray coating apparatus according to one of Claims 1 to 4, characterized in that the at least one external optical display unit (40) is provided with an arm band or an arm ring for fastening the display unit on the arm of a person.
  12. Spray coating apparatus according to any one of the preceding claims, characterized in that the spray device (4) is a hand spray gun.
EP04016671A 2003-08-02 2004-07-15 Spray coating apparatus with a remote display device Expired - Lifetime EP1504823B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10335420 2003-08-02
DE10335420A DE10335420A1 (en) 2003-08-02 2003-08-02 Spray coater

Publications (2)

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EP1504823A1 EP1504823A1 (en) 2005-02-09
EP1504823B1 true EP1504823B1 (en) 2006-02-15

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EP (1) EP1504823B1 (en)
JP (1) JP2005052830A (en)
CN (1) CN1623675A (en)
AU (1) AU2004203520B2 (en)
DE (2) DE10335420A1 (en)

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Publication number Publication date
AU2004203520A1 (en) 2005-02-17
AU2004203520B2 (en) 2006-06-15
CN1623675A (en) 2005-06-08
EP1504823A1 (en) 2005-02-09
DE502004000291D1 (en) 2006-04-20
JP2005052830A (en) 2005-03-03
DE10335420A1 (en) 2005-02-17

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