EP1245292A1 - Rotary atomizer and method for controlling the drive turbine - Google Patents

Rotary atomizer and method for controlling the drive turbine Download PDF

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Publication number
EP1245292A1
EP1245292A1 EP02006826A EP02006826A EP1245292A1 EP 1245292 A1 EP1245292 A1 EP 1245292A1 EP 02006826 A EP02006826 A EP 02006826A EP 02006826 A EP02006826 A EP 02006826A EP 1245292 A1 EP1245292 A1 EP 1245292A1
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EP
European Patent Office
Prior art keywords
turbine
atomizer
medium
drive
drive medium
Prior art date
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Granted
Application number
EP02006826A
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German (de)
French (fr)
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EP1245292B1 (en
Inventor
Harry Krumma
Michael Baumann
Frank Herre
Stefano Giuliano
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Duerr Systems AG
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Duerr Systems AG
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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
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/10—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces
    • B05B3/1085—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements discharging over substantially the whole periphery of the rotating member, i.e. the spraying being effected by centrifugal forces with means for detecting or controlling the rotational speed
    • 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
    • B05B5/04—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces
    • B05B5/0415—Driving means; Parts thereof, e.g. turbine, shaft, bearings

Definitions

  • the invention relates to a method for controlling the drive turbine a rotary atomizer and one for Implementation of the process according to suitable rotary atomizers the preamble of the independent claims.
  • an electrostatic atomizer for the serial coating of workpieces such as vehicle bodies.
  • the object of the invention is a method or a rotary atomizer, the increased energy requirement for the drive turbine can provide without unnecessary energy consumption.
  • the invention has the advantage that with a given atomizer depending on need and operating conditions both low as well as very high amounts of paint, each with optimal drive energy or performance can be atomized. Switching on the additional amount of air can be due in particular to high paint requirements and / or the acceleration phase from standstill high speeds are limited. Another through the invention created possibility is the drive energy for example when changing the atomizer to another Paint or when replacing the bell plate for one e.g. larger and / or heavier embodiment on each switch best size. In addition, by switching the respective speed control behavior also improved.
  • Brake air can be used during normal operation the drive air to establish a stable equilibrium counteracts. It becomes the turbine to this Purpose via a separate one leading into the atomizer Brake air hose supplied and does not need to be regulated.
  • the brake air is expediently the drive input of the turbine via one inside the atomizer from the brake air line branching channel supplied. Since the brake air line anyway is required, can be in this embodiment on a additional air hose leading from the outside into the atomizer for the additional energy to be dispensed with Space may be undesirable.
  • the rotary atomizer shown schematically in Fig. 1 contains a storage unit 1 with a bell plate 2 above an air turbine driving, for example, an air-bearing shaft 3 with the turbine wheel 4.
  • the bearing unit 1 is located in turn in the atomizer housing 5.
  • the turbine wheel 4 is transferred from an external speed controller DR to the Atomizer leading hose 7 and one as an internal basic supply line serving feed channel 8 of the atomizer drive air A fed. From another speed controller output receives the turbine wheel 4 via a valve VB and a separate line LB brake air B.
  • the basic supply line 8 can also consist of several in parallel at different There are channels opening into the turbine wheel. So on So far, it has been described as conventional act electrostatic rotary atomizer.
  • the mode of operation of the speed controller for example one opto-electronically recorded actual value of the turbine speed compares with a target value and in the event of deviations Actuating and venting valves of an actuator and can also control a brake valve is known per se.
  • the invention contains through the hose 7 and the channel 8 formed air supply path of the turbine e.g. pneumatic or electrically controlled valve arrangement 10 which locks off a separate duct 11 for connecting air, which also drives the turbine wheel 4 on this empties.
  • the turbine e.g. pneumatic or electrically controlled valve arrangement 10 which locks off a separate duct 11 for connecting air, which also drives the turbine wheel 4 on this empties.
  • Several additional channels 11 with several can also be used Nozzles can be provided on the turbine wheel.
  • valve arrangement 10 instead of a simple open / close function, the valve arrangement 10 also the way into channel 11 (or the ways into both channels 8 and 11) for the respective operating and control conditions throttle best values. This throttling can can be automatically set and changed.
  • Fig. 2 shows a modified embodiment in which the release and shut-off valve arrangement for the additional Air volume is outside the storage unit in the atomizer housing 5 or outside of the atomizer as at 10 ' or 10 "is shown.
  • Fig. 3 shows a further embodiment, which differs from those according to Fig. 1 and Fig. 2 differs in that the separate Channel 11 'for the additional air not from channel 8 of the Primary supply line branches off, but from a separate Output on the speed control unit DR '.
  • the control to regulate the air volume is in the speed control element integrated, and the supply to the turbine takes place via two completely separate air intakes, corresponding of the respective load can be controlled.
  • FIG. 4 Invention can with respect to the speed controller DR, the air hose 47, the valve arrangement 40, the channels 48 and 41, the brake line LB and the turbine 44, the elements DR 7, 10, 8, 11, LB and 4 of the embodiment described with reference to FIG. 1 correspond.
  • branching from the valve assembly 10 in FIG. 1 Channel 11 branches here from the brake line LB via one e.g. pneumatically or electrically controlled valve arrangement 43 a channel 42 from which the turbine 44 exhausts the air the brake air hose forming the line LB as an additional one Drive medium feeds.
  • the turbine with the brake air at the start of operation accelerate to a nominal speed and then only in the usual way the brake input of the turbine supply.
  • another drive or Brake medium can be used.

Landscapes

  • Electrostatic Spraying Apparatus (AREA)
  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

A turbine drive substance (A) is fed to a turbine wheel (4) from supply lines (7,8) running through a sprayer. Levels of pressure and amounts are regulated according to need. If there is an increased need for drive energy, additional drive substance is fed to the turbine wheel by switching in a special channel (11). The additional drive substance branches off from a supply line (7) viz. from a speed governor (DR) to the turbine. Independent claims are also included for a rotary sprayer for carrying out the method of the present invention and for coating apparatus for use with the sprayer.

Description

Die Erfindung betrifft ein Verfahren zur Steuerung der Antriebsturbine eines Rotationszerstäubers sowie einen zur Durchführung des Verfahrens geeigneten Rotationszerstäuber gemäß dem Oberbegriff der unabhängigen Patentansprüche. insbesondere handelt es sich um einen elektrostatischen Zerstäuber für die Serienbeschichtung von Werkstücken wie Fahrzeugkarossen.The invention relates to a method for controlling the drive turbine a rotary atomizer and one for Implementation of the process according to suitable rotary atomizers the preamble of the independent claims. in particular is an electrostatic atomizer for the serial coating of workpieces such as vehicle bodies.

Bekannte elektrostatische Rotationszerstäuber (DE 4 306 800 A) haben u.a. wegen der Hochspannungsumgebung eine mit Luft angetriebene Turbine, deren Drehzahl von einem Regler unabhängig von unterschiedlichen Lackausflußmengen konstant gehalten wird. Die Antriebsluft wird über einen Schlauch zum Zerstäuber gebracht und über Zuführkanäle und ein oder mehrere Einströmdüsen zum Turbinenrad geleitet. Um die Turbine nach Beendigung des Beschichtungsbetriebes zum Stillstand zu bringen, wird ihr nach Abschalten der Antriebsluft über einen gesonderten Kanal Bremsluft zugeführt.Known electrostatic rotary atomizers (DE 4 306 800 A) have because of the high voltage environment an air powered one Turbine, the speed of which is independent of a controller kept constant by different paint flow rates becomes. The drive air becomes an atomizer via a hose brought and via feed channels and one or more inflow nozzles directed to the turbine wheel. To the turbine after completion to bring the coating plant to a standstill after switching off the drive air via a separate duct Brake air supplied.

Bei derartigen Zerstäubern werden zunehmend erhöhte Anforderungen an das Zerstäubungsorgan gestellt, namentlich auch bei Lackierrobotern. Zum schnellen Aufbringen gleichmäßiger Schichtdicken können höhere Lackaufbringmengen über größere Glockenteller notwendig werden. Hierbei besteht aber das Problem, daß die dazu notwendige Zerstäubungsenergie in Form von Menge bzw. Druck der Antriebsluft von den derzeit üblichen Luftversorgungskreisen nicht mehr zur Verfügung gestellt werden kann. Andererseits ist aber eine erhöhte Energiezufuhr nicht immer notwendig, sondern beispielsweise nur bei großen Farbmengen und/oder bei der Beschleunigung der Turbine bis zur Erreichung der Nenndrehzahl. Würde man also zur Bereitstellung der fallweise benötigten größeren Luftmenge einfach den Luftversorgungskanal an der Turbine mit entsprechend großem Durchmesser bemessen, hätte das zur Folge, daß selbst bei geringen Farbmengen unverhältnismäßig viel Luft zugeführt und verbraucht würde. Auch würden sich dann regelungstechnisch Drehzahlschwankungen schlechter ausgleichen lassen, da hierzu nur geringe Druckdifferenzen notwendig sind.With such atomizers there are increasing demands placed on the atomizing device, especially at Painting robots. For quick application more evenly Layer thicknesses can increase the amount of paint applied over larger ones Bell plates become necessary. The problem here is that the necessary atomization energy in the form of Quantity or pressure of the drive air from the currently usual Air supply circles are no longer available can. On the other hand, there is an increased energy supply not always necessary, but only for large ones, for example Paint quantities and / or when accelerating the turbine up to Reaching the nominal speed. So you would be ready to deploy of the larger amount of air required in some cases simply the air supply duct on the turbine with a correspondingly large diameter dimensioned, this would have the consequence that even with small Quantities of paint supplied and consumed a disproportionate amount of air would. In terms of control technology, there would also be fluctuations in speed compensate worse, because only for this small pressure differences are necessary.

Aufgabe der Erfindung sind ein Verfahren bzw. ein Rotationszerstäuber, die erhöhten Energiebedarf für die Antriebsturbine ohne unnötigen Energieverbrauch zur Verfügung stellen können.The object of the invention is a method or a rotary atomizer, the increased energy requirement for the drive turbine can provide without unnecessary energy consumption.

Diese Aufgabe wird durch die Merkmale der Patentansprüche gelöst.This object is solved by the features of the claims.

Die Erfindung hat den Vorteil, daß mit einem gegebenen Zerstäuber je nach Bedarf und Betriebsbedingungen sowohl geringe als auch sehr hohe Lackmengen mit jeweils optimaler Antriebsenergie oder -leistung zerstäubt werden können. Das Zuschalten der zusätzlichen Luftmenge kann insbesondere auf hohen Lackmengenbedarf und/oder die Beschleunigungsphase vom Stand auf hohe Drehzahlen beschränkt werden. Eine andere durch die Erfindung geschaffene Möglichkeit besteht darin, die Antriebsenergie beispielsweise bei Umstellung des Zerstäubers auf anderen Lack oder bei Auswechseln des Glockentellers gegen eine z.B. größere und/oder schwerere Ausführungsform auf die jeweils beste Größe umzuschalten. Außerdem wird durch das Umschalten auch das jeweilige Drehzahlregelverhalten verbessert.The invention has the advantage that with a given atomizer depending on need and operating conditions both low as well as very high amounts of paint, each with optimal drive energy or performance can be atomized. Switching on the additional amount of air can be due in particular to high paint requirements and / or the acceleration phase from standstill high speeds are limited. Another through the invention created possibility is the drive energy for example when changing the atomizer to another Paint or when replacing the bell plate for one e.g. larger and / or heavier embodiment on each switch best size. In addition, by switching the respective speed control behavior also improved.

Wenn in Weiterbildung der Erfindung noch weitere zuschaltbare Luftkanäle vorgesehen sind, besteht auch die Möglichkeit einer Umschaltung des Zerstäubers zwischen mehr als nur zwei Antriebsenergiestufen. Ferner ist es möglich, statt nur einzelner Zuschaltstufen mehr oder weniger Zusatzluft in einem stetig verstellbaren Maße zuzuschalten. If, in a further development of the invention, other switchable ones Air ducts are provided, there is also a possibility Switching the atomizer between more than two drive energy levels. It is also possible instead of just individual ones Connection levels more or less additional air in one continuous adjustable dimensions.

Gemäß einer anderen Ausführungsform der Erfindung kann auch insbesondere bei der Beschleunigung der Turbine bis zum Erreichen ihrer Nenndrehzahl als zusätzliches Antriebsmedium die Bremsluft genutzt werden, die während des normalen Betriebes der Antriebsluft zur Herstellung eines stabilen Gleichgewichtszustands entgegenwirkt. Sie wird der Turbine zu diesem Zweck über einen in den Zerstäuber führenden gesonderten Bremsluftschlauch zugeführt und muss nicht geregelt werden. Zweckmäßig wird die Bremsluft dem Antriebseingang der Turbine über einen innerhalb des Zerstäubers aus der Bremsluftleitung abzweigenden Kanal zugeführt. Da die Bremsluftleitung ohnehin erforderlich ist, kann bei dieser Ausführungsform auf einen von außen in den Zerstäuber führenden zusätzlichen Luftschlauch für die Zusatzenergie verzichtet werden, der aus Platzgründen unerwünscht sein kann.According to another embodiment of the invention, too especially when accelerating the turbine until it is reached their nominal speed as an additional drive medium Brake air can be used during normal operation the drive air to establish a stable equilibrium counteracts. It becomes the turbine to this Purpose via a separate one leading into the atomizer Brake air hose supplied and does not need to be regulated. The brake air is expediently the drive input of the turbine via one inside the atomizer from the brake air line branching channel supplied. Since the brake air line anyway is required, can be in this embodiment on a additional air hose leading from the outside into the atomizer for the additional energy to be dispensed with Space may be undesirable.

An dem in der Zeichnung dargestellten Ausführungsbeispiel wird die Erfindung näher erläutert. Es zeigen

Fig. 1
einen elektrostatischen Rotationszerstäuber mit einer Luftturbine in schematischer Darstellung;
Fig. 2 und Fig. 3
abgewandelte Ausführungsformen des Rotationszerstäubers gemäß Fig. 1; und
Fig. 4
ein weiteres Ausführungsbeispiel der Erfindung.
The invention is explained in more detail using the exemplary embodiment shown in the drawing. Show it
Fig. 1
an electrostatic rotary atomizer with an air turbine in a schematic representation;
2 and 3
modified embodiments of the rotary atomizer according to FIG. 1; and
Fig. 4
another embodiment of the invention.

Der in Fig. 1 schematisch dargestellte Rotationszerstäuber enthält eine Lagereinheit 1 mit einer dem Glockenteller 2 über eine beispielsweise luftgelagerte Welle 3 antreibenden Luftturbine mit dem Turbinenrad 4. Die Lagereinheit 1 befindet sich ihrerseits in dem Zerstäubergehäuse 5. Dem Turbinenrad 4 wird von einem externen Drehzahlregler DR über einen in den Zerstäuber führenden Schlauch 7 und einen als interne Grundversorgungsleitung dienenden Zuführkanal 8 des Zerstäubers Antriebsluft A zugeführt. Von einem anderen Ausgang des Drehzahlreglers erhält das Turbinenrad 4 über ein Ventil VB und eine gesonderte Leitung LB Bremsluft B. Die Grundversorgungsleitung 8 kann auch aus mehreren parallel an verschiedenen Stellen des Turbinenrads mündenden Kanälen bestehen. Soweit er bisher beschrieben wurde, kann es sich um einen an sich konventionellen elektrostatischen Rotationszerstäuber handeln. Auch die Betriebsweise des Drehzahlreglers, der einen beispielsweise opto-elektronisch erfaßten Istwert der Turbinendrehzahl mit einem Sollwert vergleicht und bei Abweichungen Be- und Entlüftungsventile eines Stellgliedes ansteuert und auch ein Bremsventil ansteuern kann, ist an sich bekannt.The rotary atomizer shown schematically in Fig. 1 contains a storage unit 1 with a bell plate 2 above an air turbine driving, for example, an air-bearing shaft 3 with the turbine wheel 4. The bearing unit 1 is located in turn in the atomizer housing 5. The turbine wheel 4 is transferred from an external speed controller DR to the Atomizer leading hose 7 and one as an internal basic supply line serving feed channel 8 of the atomizer drive air A fed. From another speed controller output receives the turbine wheel 4 via a valve VB and a separate line LB brake air B. The basic supply line 8 can also consist of several in parallel at different There are channels opening into the turbine wheel. So on So far, it has been described as conventional act electrostatic rotary atomizer. Also the mode of operation of the speed controller, for example one opto-electronically recorded actual value of the turbine speed compares with a target value and in the event of deviations Actuating and venting valves of an actuator and can also control a brake valve is known per se.

Erfindungsgemäß enthält die durch den Schlauch 7 und den Kanal 8 gebildete Luftversorgungsstrecke der Turbine eine z.B. pneumatisch oder elektrisch angesteuerte Ventilanordnung 10, an der absperrbar ein gesonderter Kanal 11 für Zuschaltluft abzweigt, der ebenfalls zum Antrieb des Turbinenrads 4 an diesem mündet. Es können auch mehrere Zusatzkanäle 11 mit mehreren Düsen am Turbinenrad vorgesehen sein.According to the invention contains through the hose 7 and the channel 8 formed air supply path of the turbine e.g. pneumatic or electrically controlled valve arrangement 10 which locks off a separate duct 11 for connecting air, which also drives the turbine wheel 4 on this empties. Several additional channels 11 with several can also be used Nozzles can be provided on the turbine wheel.

Im Betrieb ist bei geringem Antriebsenergiebedarf die in den gesonderten Kanal 11 führende Abzweigung der Ventilanordnung 10 geschlossen, so daß die Turbine in der schon bisher üblichen Weise nur über den Kanal 8 angetrieben wird.In operation, the drive power is low in the separate channel 11 leading branch of the valve assembly 10 closed, so that the turbine in the already usual Way is only driven via the channel 8.

Erhöht sich beispielsweise wegen erhöhter Lackausbringung oder bei Verwendung eines größeren Glockentellers 2 usw. der Antriebsenergiebedarf über einen für die normale Luftversorgung durch den Kanal 8 geltenden Grenzwert hinaus, so wird die in den Kanal 11 führende Abzweigung der Ventilanordnung 10 geöffnet, so daß durch den zugeschalteten Kanal 11 die Turbine mit einer größeren Luftmenge mit höherem Druck, also mit der benötigten Zusatzenergie versorgt wird. Der von außen in den Zerstäuber führende Luftschlauch 7 hat einen so groß bemessenen Querschnitt, daß die gesamte benötigte Luft zur Verfügung gestellt werden kann. Im Gegensatz hierzu genügt für den Kanal 8 ein relativ geringer Durchmesser, was den eingangs erläuterten Nachteil vermeidet. Bei kleiner werdendem Energiebedarf oder wenn beim Hochfahren des Zerstäubers mit erhöhter Luftleistung die Nenndrehzahl erreicht wird, wird der Weg in den Kanal 11 wieder geschlossen, so daß der Luftverbrauch auf die für das nun notwendige Drehmoment erforderliche Menge zurückgeht.Increases, for example, due to increased paint application or when using a larger bell plate 2, etc. the drive energy requirement over one for normal air supply through channel 8, the limit in the branch of the valve arrangement 10 leading the duct 11 is opened, so that through the connected channel 11 with the turbine a larger amount of air with higher pressure, i.e. with the required Additional energy is supplied. The outside in the atomizer leading air hose 7 has such a large size Cross section that all the air required is provided can be. In contrast, channel 8 is sufficient a relatively small diameter, which was explained in the introduction Avoids disadvantage. With decreasing energy requirements or if when starting the atomizer with increased air output the nominal speed is reached, the path into channel 11 closed again, so that the air consumption on the for now necessary torque required amount decreases.

Statt einer einfachen Auf/Zu-Funktion kann die Ventilanordnung 10 auch den Weg in den Kanal 11 (oder die Wege in beide Kanäle 8 und 11) auf für die jeweiligen Betriebs- und Regelungsbedingungen günstigsten Werte drosseln. Diese Drosselung kann ggf. automatisch eingestellt und verändert werden.Instead of a simple open / close function, the valve arrangement 10 also the way into channel 11 (or the ways into both channels 8 and 11) for the respective operating and control conditions throttle best values. This throttling can can be automatically set and changed.

Bei der Ausführungsform gemäß Fig. 1 kann die Sperrventilanordnung 10 in das Gehäuse der Lagereinheit 1 eingebaut sein. Fig. 2 zeigt eine abgewandelte Ausführungsform, bei der sich die Freigabe- und Absperrventilanordnung für die zusätzliche Luftmenge sich außerhalb der Lagereinheit im Zerstäubergehäuse 5 oder außerhalb des Zerstäubers befinden kann, wie bei 10' bzw. 10" dargestellt ist.In the embodiment according to FIG. 1, the check valve arrangement 10 be installed in the housing of the bearing unit 1. Fig. 2 shows a modified embodiment in which the release and shut-off valve arrangement for the additional Air volume is outside the storage unit in the atomizer housing 5 or outside of the atomizer as at 10 ' or 10 "is shown.

Fig. 3 zeigt eine weitere Ausführungsform, die sich von denen nach Fig. 1 und Fig. 2 dadurch unterscheidet, daß der gesonderte Kanal 11' für die Zusatzluft nicht von dem Kanal 8 der Grundversorgungsleitung abzweigt, sondern von einem gesonderten Ausgang an der Drehzahlregeleinheit DR'. Die Ansteuerung zur Regulierung der Luftmenge ist also im Drehzahlregelorgan integriert, und die Versorgung bis zur Turbine erfolgt über zwei vollständig getrennte Luftzuführungen, die entsprechend der jeweiligen Last angesteuert werden.Fig. 3 shows a further embodiment, which differs from those according to Fig. 1 and Fig. 2 differs in that the separate Channel 11 'for the additional air not from channel 8 of the Primary supply line branches off, but from a separate Output on the speed control unit DR '. The control to regulate the air volume is in the speed control element integrated, and the supply to the turbine takes place via two completely separate air intakes, corresponding of the respective load can be controlled.

Das in Figur 4 dargestellte weitere Ausführungsbeispiel der Erfindung kann hinsichtlich des Drehzahlreglers DR, des Luftschlauchs 47, der Ventilanordnung 40, der Kanäle 48 und 41, der Bremsleitung LB und der Turbine 44 den Elementen DR 7, 10, 8, 11, LB und 4 des anhand von Fig. 1 beschriebenen Ausführungsbeispiels entsprechen. Zusätzlich (oder in anderen Fällen anstelle des aus der Ventilanordnung 10 in Fig. 1 abzweigenden Kanals 11) zweigt hier aber aus der Bremsleitung LB über eine z.B. pneumatisch oder elektrisch gesteuerte Ventilanordnung 43 ein Kanal 42 ab, der bei Bedarf der Turbine 44 die Luft aus dem die Leitung LB bildenden Bremsluftschlauch als zusätzliches Antriebsmedium zuführt. Beispielsweise kann es zweckmäßig sein, bei Betriebsbeginn zunächst die Turbine mit der Bremsluft bis zum Erreichen einer Nenndrehzahl zu beschleunigen und sie erst dann in üblicher Weise dem Bremseingang der Turbine zuzuführen. Statt Luft kann auch ein anderes Antriebs- bzw. Bremsmedium verwendet werden.The further embodiment shown in Figure 4 Invention can with respect to the speed controller DR, the air hose 47, the valve arrangement 40, the channels 48 and 41, the brake line LB and the turbine 44, the elements DR 7, 10, 8, 11, LB and 4 of the embodiment described with reference to FIG. 1 correspond. In addition (or in other cases instead of branching from the valve assembly 10 in FIG. 1 Channel 11) branches here from the brake line LB via one e.g. pneumatically or electrically controlled valve arrangement 43 a channel 42 from which the turbine 44 exhausts the air the brake air hose forming the line LB as an additional one Drive medium feeds. For example, it can be useful be the turbine with the brake air at the start of operation accelerate to a nominal speed and then only in the usual way the brake input of the turbine supply. Instead of air, another drive or Brake medium can be used.

Claims (13)

Verfahren zur Steuerung der Antriebsturbine eines Rotationszerstäubers für die Serienbeschichtung von Werkstücken,
   wobei das Turbinenantriebsmedium (A) dem Turbinenrad (4) von einer durch den Zerstäuber führenden Versorgungsleitung (7, 8) mit bedarfsabhängig gesteuerten oder geregelten Druck- oder Mengengrößen zugeführt wird,
   dadurch gekennzeichnet, daß dem Turbinenrad (4) bei einem erhöhten Bedarf an Antriebsenergie zusätzliches Antriebsmedium durch Zuschalten mindestens eines gesonderten Kanals (11) zugeführt wird.Process for controlling the drive turbine of a rotary atomizer for the serial coating of workpieces,
wherein the turbine drive medium (A) is fed to the turbine wheel (4) from a supply line (7, 8) leading through the atomizer with pressure or quantity variables controlled or regulated as required,
characterized in that additional drive medium is supplied to the turbine wheel (4) when there is an increased need for drive energy by connecting at least one separate channel (11). Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium aus einer insbesondere von einem Drehzahlregler (DR) zu der Turbine führenden Leitung (7) abgezweigt und die Abzweigung (10) bei geringerem Energiebedarf gesperrt wird.Method according to Claim 1, characterized in that the additional drive medium is branched off from a line (7) leading in particular from a speed controller (DR) to the turbine, and the branch (10) is blocked with a lower energy requirement. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium innerhalb des Zerstäubers aus der in den Zerstäuber führenden Leitung (7) abgezweigt wird.Method according to claim 1 or 2, characterized in that the additional drive medium within the atomizer is branched off from the line (7) leading into the atomizer. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium außerhalb des Zerstäubers aus der in den Zerstäuber führenden Leitung (7) abgezweigt wird.Method according to claim 1 or 2, characterized in that the additional drive medium is branched outside the atomizer from the line (7) leading into the atomizer. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium der Turbine von einem zweiten Ausgang einer Regeleinheit (DR') geliefert wird, die an ihrem ersten Ausgang die Grundversorgungsleitung (7, 8) speist. Method according to claim 2, characterized in that the additional drive medium of the turbine is supplied by a second output of a control unit (DR ') which feeds the basic supply line (7, 8) at its first output. Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß das zusätzliche Antriebsmedium unabhängig von dem durch die Grundversorgungsleitung (7, 8) fließenden Medium (A) geregelt wird.Method according to Claim 5, characterized in that the additional drive medium is regulated independently of the medium (A) flowing through the basic supply line (7, 8). Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Abzweigung (10) pneumatisch oder elektrisch mit einem Ventil gesteuert wird.Method according to one of the preceding claims, characterized in that the branch (10) is controlled pneumatically or electrically with a valve. Verfahren nach Anspruch 1 zur Steuerung einer Antriebsturbine, der über eine in den Zerstäuber führende Bremsleitung (LB) ein dem Antriebsmedium entgegenwirkendes Bremsmedium zugeführt wird,
dadurch gekennzeichnet, dass dem Turbinenrad (4) bei erhöhtem Bedarf an Antriebsenergie durch Zuschalten eines aus der Bremsleitung (LB) abzweigenden Kanals Bremsmedium als zusätzliches Antriebsmedium zugeführt wird.Method according to Claim 1 for controlling a drive turbine, to which a brake medium which counteracts the drive medium is fed via a brake line (LB) leading into the atomizer,
characterized in that the turbine wheel (4) is supplied with brake medium as an additional drive medium when there is an increased need for drive energy by connecting a channel branching off the brake line (LB). Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass das Bremsmedium die Turbine bis zum Erreichen einer Nenndrehzahl beschleunigt, bevor es dem Bremseingang der Turbine zugeführt wird.A method according to claim 12, characterized in that the braking medium accelerates the turbine to a nominal speed before it is fed to the brake input of the turbine. Rotationszerstäuber zur Durchführung des Verfahrens nach Anspruch 1
   mit einer Antriebsturbine, der das Antriebsmedium (A) über eine durch den Zerstäuber führende Versorgungsleitung (7, 8) zugeführt wird,
   dadurch gekennzeichnet, daß der Zerstäuber einen ebenfalls zu der Turbine führenden gesonderten Kanal (11) für zusätzliches Antriebsmedium hat, der über ein gesteuertes Absperrorgan (10, 10', DR') zuschaltbar ist.Rotary atomizer for performing the method according to claim 1
with a drive turbine to which the drive medium (A) is supplied via a supply line (7, 8) leading through the atomizer,
characterized in that the atomizer has a separate channel (11) for additional drive medium which also leads to the turbine and which can be activated via a controlled shut-off device (10, 10 ', DR'). Rotationszerstäuber nach Anspruch 10, dadurch gekennzeichnet, daß das Absperrorgan (10) ein in dem Zerstäuber befindliches pneumatisch oder elektrisch gesteuertes Ventil enthält.Rotary atomizer according to claim 10, characterized in that the shut-off device (10) contains a pneumatically or electrically controlled valve located in the atomizer. Beschichtungsanlage mit einem Zerstäuber nach Anspruch 10 oder 11 und mit einer Drehzahlregeleinheit, aus der der Antriebsturbine das Antriebsmedium über die Versorgungsleitung (7, 8) zugeführt wird, dadurch gekennzeichnet, daß auch der gesonderte Kanal (11') für zusätzliches Antriebsmedium von der Drehzahlregeleinheit (DR) zu der Turbine führt.Coating system with an atomizer according to claim 10 or 11 and with a speed control unit from which the drive medium is supplied with the drive medium via the supply line (7, 8), characterized in that the separate channel (11 ') for additional drive medium from the speed control unit ( DR) leads to the turbine. Beschichtungsanlage nach Anspruch 12, dadurch gekennzeichnet, daß die beiden Mediumzuführungen (8, 11') unabhängig voneinander lastabhängig steuerbar oder regelbar sind.Coating plant according to claim 12, characterized in that the two medium feeds (8, 11 ') can be controlled or regulated independently of one another depending on the load.
EP02006826A 2001-03-29 2002-03-25 Rotary atomizer and method for controlling the drive turbine Expired - Lifetime EP1245292B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10115469A DE10115469A1 (en) 2001-03-29 2001-03-29 Rotary atomizer and method for controlling its drive turbine
DE10115469 2001-03-29

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EP1245292B1 EP1245292B1 (en) 2003-06-18

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AT (1) ATE243076T1 (en)
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011054496A1 (en) * 2009-11-04 2011-05-12 Dürr Systems GmbH Coating method and coating system having dynamic adaptation of the atomizer rotational speed and the high voltage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022105999A1 (en) 2022-03-15 2023-09-21 Dürr Systems Ag Turbine drive for a rotary atomizer and associated operating method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4650123A (en) * 1986-03-25 1987-03-17 Toyota Jidosha Kabushiki Kaisha Rotary type electrostatic spray painting device
DE4306800A1 (en) 1993-03-04 1994-09-08 Duerr Gmbh & Co Coating apparatus with a rotary sprayer

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4650123A (en) * 1986-03-25 1987-03-17 Toyota Jidosha Kabushiki Kaisha Rotary type electrostatic spray painting device
DE4306800A1 (en) 1993-03-04 1994-09-08 Duerr Gmbh & Co Coating apparatus with a rotary sprayer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011054496A1 (en) * 2009-11-04 2011-05-12 Dürr Systems GmbH Coating method and coating system having dynamic adaptation of the atomizer rotational speed and the high voltage
CN102596422A (en) * 2009-11-04 2012-07-18 杜尔系统有限责任公司 Coating method and coating system having dynamic adaptation of the atomizer rotational speed and the high voltage
CN102596422B (en) * 2009-11-04 2016-02-24 杜尔系统有限责任公司 There is the coating process and the coating apparatus that atomizer rotational speed and high pressure are carried out to Dynamic Matching
US10052644B2 (en) 2009-11-04 2018-08-21 Duerr Systems Gmbh Coating method and coating system having dynamic adaptation of the atomizer rotational speed and the high voltage

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DE10115469A1 (en) 2002-10-10
ATE243076T1 (en) 2003-07-15
ES2201044T3 (en) 2004-03-16
DE50200015D1 (en) 2003-07-24
EP1245292B1 (en) 2003-06-18

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