EP1452235B1 - Rotating bell and rotary atomiser - Google Patents

Rotating bell and rotary atomiser Download PDF

Info

Publication number
EP1452235B1
EP1452235B1 EP04003653A EP04003653A EP1452235B1 EP 1452235 B1 EP1452235 B1 EP 1452235B1 EP 04003653 A EP04003653 A EP 04003653A EP 04003653 A EP04003653 A EP 04003653A EP 1452235 B1 EP1452235 B1 EP 1452235B1
Authority
EP
European Patent Office
Prior art keywords
coating
bell
channel
flushing medium
medium channel
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
EP04003653A
Other languages
German (de)
French (fr)
Other versions
EP1452235A3 (en
EP1452235A2 (en
Inventor
Thomas Dürr
Michael Baumann
Pavel Goujavin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP1452235A2 publication Critical patent/EP1452235A2/en
Publication of EP1452235A3 publication Critical patent/EP1452235A3/en
Application granted granted Critical
Publication of EP1452235B1 publication Critical patent/EP1452235B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
    • B05B15/55—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter using cleaning fluids
    • 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
    • B05B3/1035—Driving means; Parts thereof, e.g. turbine, shaft, bearings
    • B05B3/1042—Means for connecting, e.g. reversibly, the rotating spray member to its driving shaft
    • 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
    • B05B3/1064—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 the liquid or other fluent material to be sprayed being axially supplied to the rotating member through a hollow rotating shaft
    • 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
    • B05B5/0403—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member
    • B05B5/0407—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces characterised by the rotating member with a spraying edge, e.g. like a cup or a bell
    • 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
    • B05B5/0418—Discharge apparatus, e.g. electrostatic spray guns characterised by having rotary outlet or deflecting elements, i.e. spraying being also effected by centrifugal forces designed for spraying particulate material
    • 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
    • B05B3/1092—Means for supplying shaping gas
    • 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
    • B05B5/0426—Means for supplying shaping gas

Definitions

  • the invention relates to a bell cup for a rotary atomizer for coating workpieces, in particular for powder coating according to the preamble of claim 1, and to a matching rotary atomizer according to the preamble of claim 7.
  • a powder atomizer for the series coating of workpieces in which the atomization of the powder used as a coating agent is carried out by a bell cup, which is mounted on a rotatably mounted in the powder atomizer bell cup shaft and rotates at a high speed.
  • a gap channel which widens conically in the axial direction to the free end of the bell cup, wherein in the gap channel during the coating operation, a powder-air mixture flows due to the rotational forces to the outer edge of the bell cup, where it exits is atomized into the open air.
  • the feeding of the powder used as a coating agent takes place here by a centrally arranged in the bell-plate coating agent channel, wherein the central coating agent channel is surrounded by a coaxial shell detergent detergent channel, which allows a purging of the gap plate located in the bell cup with purging air during processing pauses.
  • a disadvantage of this known Pulverzerstäuber is the fact that a flushing of the bell cup is possible only during processing breaks when no powder-air mixture is conveyed into the gap channel.
  • bell plates or powder sprayers are made DE 39 12 700 C1 .
  • DE 35 28 084 A1 such as EP 0 283 918 A2 known.
  • these bell cups also have the disadvantage that no rinsing of the bell cup is possible during the coating operation.
  • the invention is therefore based on the object to improve the known Pulverzerstäuber described above.
  • the invention encompasses the general technical teaching of providing a separate detergent channel in the bell cup in addition to the coating agent channel, so that the rinse agent can be conveyed independently of the coating agent, so that rinsing of the bell cup is also made possible during the coating operation in order to prevent it from adhering coating agent residues clean.
  • the term of a rinsing agent channel which is separate from the coating agent channel is to be understood as meaning that there is no connection between the coating agent channel and the rinsing agent channel in the bell-shaped plate, so that it does not form a rinse during the coating operation Mixing of detergent and coating can come.
  • the coating agent channel and the detergent channel are thus supplied separately with rinsing agent or coating agent in the preferred embodiment.
  • the flushing agent channel and the coating agent channel preferably have spatially and / or fluidically separate inlet openings or inlet openings.
  • the rotary atomizer according to the invention has a coating agent channel and a separate flushing agent channel, the outlet opening of the flushing agent channel being separated from the outlet opening of the coating agent channel in order to be able to conduct the flushing agent separately from the coating agent channel to the bell cup.
  • the outlet openings of the detergent channel and the coating agent channel are therefore preferably fluidically and / or spatially separated.
  • the invention is not limited to use in the powder atomizer described above, in which a powder is used as coating agent. Rather, it is theoretically also conceivable that the invention is used in a rotary atomizer and a correspondingly adapted bell cup for liquid coating compositions.
  • the rinsing agent channel arranged in the bell cup therefore preferably has an outlet opening which is directed onto the high-voltage electrode in order to prevent contamination of the high-voltage electrode by sprayed-on coating agent during the coating operation.
  • This flushing of the high-voltage electrode during the coating operation advantageously prevents deposition of coating agent on the high-voltage electrode, so that even in a long-lasting coating operation, no interruptions are required to clean the high-voltage electrode.
  • the high-voltage electrode has an electrode needle, wherein the flushing agent flow is substantially jacket-shaped and coaxial with the electrode needle.
  • the electrode needle is thereby always surrounded during the coating operation by a protective detergent layer, whereby deposits of coating agent are prevented at the electrode needle.
  • the coating agent channel runs as in the case of the known powder atomizer described above an inner part and an outer part of the bell cup, wherein the inner part is connected by at least one hollow connecting bolt with the outer part, while the detergent channel passes through the hollow connecting bolt.
  • the connecting bolt thus serves on the one hand for mechanical fixation of the inner part of the bell cup on the outer part of the bell cup and also forms part of the detergent channel.
  • the fixing of the connecting part in the inner part of the bell cup is in this case preferably by a fastening screw, wherein the head of this fastening screw is preferably supported on the inner part of the bell cup, while the thread of the fastening screw engages in an internal thread which is attached to the inner wall of the hollow connecting bolt.
  • the fastening screw in this case has an axially continuous bore for the passage of the rinsing agent, so that the hollow connecting bolt is not closed by the fastening screw.
  • the bell cup dishwashing agent runs on rotation of the bell cup with the bell cup, wherein in the bell cup to achieve a sufficiently large detergent flow preferably more detergent channels are arranged, which can be distributed, for example, distributed over the circumference of the bell cup at regular angular intervals.
  • the supply of the rinsing agent to the bell cup is preferably carried out by the rotary atomizer, which for this purpose has a separate detergent channel, which is separated from the coating agent channel of the rotary atomizer. It is also important that the outlet opening of the detergent channel of the rotary atomizer is separated from the outlet opening of the coating agent channel of the rotary atomizer, so that the rotary atomizer the dish can be supplied to the bell cup separately from the coating agent during the coating operation.
  • the supply of the rinsing agent is not carried out by the rotary atomizer, but by the bell cup itself according to the invention.
  • the bell cup therefore has a turbine which rotates with the bell cup, wherein the turbine sucks ambient air and promotes in the arranged in the bell cup detergent channel.
  • This variant of the bell cup according to the invention also makes it possible, with a conventional rotary atomizer without a separate detergent channel, to rinse the bell cup during the coating operation.
  • the rinsing agent channel arranged in the bell-shaped plate has an inlet opening whose cross-sectional surface extends at right angles to the axis of rotation of the bell-shaped plate. Accordingly, the rinsing agent channel arranged in the rotary atomizer then also has an outlet opening whose cross-sectional area extends at right angles to the axis of rotation of the bell-tower shaft.
  • the inlet opening of the rinsing agent channel arranged in the bell cup is then located with a slight gap in front of the outlet opening of the rinsing agent channel arranged in the rotary atomizer, whereby a dynamic sealing is effected.
  • the rinsing agent channel arranged in the rotary atomiser preferably discharges into the rotary atomiser into an annular channel which is arranged coaxially with the bell-shaped plate shaft and has an outlet opening which runs annularly with respect to the bell-plate shaft.
  • the flushing agent channel is preferably arranged fixedly, but it is theoretically also possible that the flushing agent channel in the rotary atomizer rotates with the bell-tower shaft.
  • the invention is not limited to ambient air or compressed air with regard to the rinsing agent to be used. Rather, it is also possible to use other rinsing agents that are well known to those skilled in the art.
  • FIG. 1 shows a rotary atomizer 1 for powder coating of workpieces and a correspondingly adapted bell cup according to the invention 2.
  • the rotary atomizer 1 is suitable in connection with the bell cup 2 in particular for powder coating of motor vehicle body parts in series production, but also the coating of other workpieces is possible.
  • the bell cup 2 consists essentially of an outer part 3 and a coaxial to him, axially spaced from him inner part 4, wherein between the outer part 3 and the inner part an annular gap-shaped coating agent channel 5 extends, as shown in the interior of the bell cup 2 over the entire circumference of Bell plate 2 extends and widens conically in the axial direction to the free end of the bell cup 2.
  • the boundary surfaces of the coating channel 5 formed by the outer part 3 and the inner part 4 do not run exactly parallel, but approach the mouth opening of the coating channel 5, so that the cross section of the coating medium channel 5 decreases towards the mouth opening, which accelerates the Coating agent stream in the coating agent channel 5 leads.
  • a middle part 6 is centrally used that seamlessly merges at the side lying right in the drawing into the inner part and has a tip which tapers conically towards the rotary atomizer 1 facing side of the bell cup 2.
  • a cup-shaped cylindrical recess into which an insert body 7 is inserted, wherein the insert body 7 has an axially continuous bore through which a centrally disposed electrode needle 8 a high voltage electrode protrudes axially outward.
  • the high-voltage electrode 9 is under high voltage during the coating operation and serves to electrically charge the powder-air mixture discharged from the bell cup 2 and to ionize the air space between the rotary atomizer 1 and the workpiece to be coated.
  • the mechanical connection of the inner part 3 with the outer part 4 is effected by a plurality of axially extending hollow connecting bolts 10, which are arranged distributed over the circumference of the bell cup 2 at equal angular intervals.
  • the fixing of the connecting bolt 10 in the inner part takes place here by a fastening screw 11, the head of which is supported in the inner part 4, wherein the fastening screw 11 has an external thread which engages in the mounted state in an internal thread in the hollow connecting bolt 10.
  • the connecting bolt 10 For fixing the connecting bolt 10 in the outer part 3, the connecting bolt 10, however, on the rotary atomizer 1 side facing a thickened relative to the shaft portion of the connecting bolt 10 head, which is supported when tightening the fastening screw 11 on the outer part 3.
  • the bell cup 2 makes it possible to rinse the electrode needle 8 with purging air, the purging air stream flowing around the electrode needle 8 in an axial and jacket-like manner, as can be seen from the drawing.
  • the scavenging air is supplied here in the bell cup 2 by a scavenging air channel, the scavenging air channel initially being formed from the electrode needle 8 by a radially extending needle bore 12 which merges into a corresponding connecting bore 13 in the middle part 6.
  • the detergent channel in the bell cup 2 is then formed by a bore which passes axially through the fastening screw 11 and connects the interior of the hollow connecting bolt 10 with the connecting bore 13, so that the interior of the connecting bolt 10 forms part of the detergent channel.
  • the supply of the rinsing agent to the detergent channel of the bell cup 2 takes place here by the rotary atomizer 1, which also has a detergent channel, which runs in a housing 14 of the rotary atomizer 1, wherein the detergent channel of the rotary atomizer 1 is formed by a plurality of lines 15 - 18, the finally open into an annular channel 19, which has an annular circumferential outlet opening, wherein the outlet opening of the annular channel 19 is located on the free end face of the rotary atomizer 1 and is mounted with the bell cup 2 with a small gap in front of the mouth opening of the hollow connecting bolt 10, so that regardless of the rotational position of the bell cup 2 always purge air from the annular channel 19 can pass into the flushing channel of the bell cup 2.
  • the rotary atomizer 1 has a rotatably mounted bell-plate shaft 20, which carries an internal thread at its free end.
  • the outer part 3 of the bell cup 2 has a correspondingly adapted external thread, so that the bell cup 2 is screwed onto the bellcylinder shaft 20 in the mounted state.
  • the rotary atomizer 1 has a coating agent channel 21, which is formed by the interior of a centrally arranged powder tube 22.
  • the coating agent channel 21 is thus separated from the flushing agent channel 15-19, wherein the outlet openings of the coating medium channel 21 and the flushing agent channel 15-19 are also separated from one another in order to allow independent supply of flushing agent and coating agent.
  • the coating agent channel 5 in the bell cup 2 is separated from the detergent channel 12, 13 in the bell cup 2, so that the rinsing of the electrode needle 8 can take place during the actual coating operation.
  • FIG. 2 illustrated alternative embodiment of a bell cup 2 'according to the invention is largely consistent with that described above and in FIG. 1 illustrated embodiment of the bell cup 2, so that in the following largely to the above description FIG. 1 is referenced and for identical or corresponding components, the same reference numerals are used, which are characterized only for distinction by an apostrophe.
  • a special feature of the bell plate 2 ' is that the. Feeding the scavenging air to the bell cup 2 'not by the in FIG. 1 also shown rotary atomizer 1, but by a turbine 23 ', the detailed in FIG. 3 is shown and rotates with the bell cup 2 '. During the coating operation with rotating bell cup 2 ', the turbine 23' sucks in ambient air and conveys it into the interior of the connecting bolt 10 'and thus into the flushing agent channel of the bell cup 2'.

Landscapes

  • Nozzles (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

Bell plate (2) for a rotary sprayer (1) used in the coating of workpieces comprises a coating medium channel (5) supplying coating medium and a rinsing medium channel (12, 13) supplying a rinsing medium for removing coating medium residues adhering to the bell plate. The rinsing medium channel arranged separately to the coating medium channel to prevent contamination of the rinsing medium by the coating medium and to allow rinsing during the coating operation. An independent claim is also included for a rotary sprayer used in the coating of workpieces, especially powder coating.

Description

Die Erfindung betrifft einen Glockenteller für einen Rotationszerstäuber zur Beschichtung von Werkstücken, insbesondere zur Pulverbeschichtung gemäß dem Oberbegriff des Anspruchs 1, sowie einen dazu passenden Rotationszerstäuber gemäß dem Oberbegriff von Anspruch 7.The invention relates to a bell cup for a rotary atomizer for coating workpieces, in particular for powder coating according to the preamble of claim 1, and to a matching rotary atomizer according to the preamble of claim 7.

Aus EP 1 238 710 A1 ist ein Pulverzerstäuber für die Serienbeschichtung von Werkstücken bekannt, bei dem die Zerstäubung des als Beschichtungsmittel eingesetzten Pulvers durch einen Glockenteller erfolgt, der auf einer in dem Pulverzerstäuber drehbar gelagerten Glockentellerwelle montiert ist und mit einer großen Drehzahl rotiert. In dem Glockenteller befindet sich ein Spaltkanal, der sich in axialer Richtung zu dem freien Ende des Glockentellers hin konisch erweitert, wobei in dem Spaltkanal während des Beschichtungsbetriebs ein Pulver-Luft-Gemisch aufgrund der Rotationskräfte zum äußeren Rand des Glockentellers strömt, wo es beim Austritt ins Freie zerstäubt wird. Die Zuführung des als Beschichtungsmittel eingesetzten Pulvers erfolgt hierbei durch einen in der Glockentellerwelle zentral angeordneten Beschichtungsmittelkanal, wobei der zentrale Beschichtungsmittelkanal mantelförmig von einem koaxialen Spülmittelkanal umgeben ist, der in Bearbeitungspausen eine Spülung des in dem Glockenteller befindlichen Spaltkanals mit Spülluft ermöglicht.Out EP 1 238 710 A1 a powder atomizer for the series coating of workpieces is known in which the atomization of the powder used as a coating agent is carried out by a bell cup, which is mounted on a rotatably mounted in the powder atomizer bell cup shaft and rotates at a high speed. In the bell cup is a gap channel which widens conically in the axial direction to the free end of the bell cup, wherein in the gap channel during the coating operation, a powder-air mixture flows due to the rotational forces to the outer edge of the bell cup, where it exits is atomized into the open air. The feeding of the powder used as a coating agent takes place here by a centrally arranged in the bell-plate coating agent channel, wherein the central coating agent channel is surrounded by a coaxial shell detergent detergent channel, which allows a purging of the gap plate located in the bell cup with purging air during processing pauses.

Nachteilig an diesem bekannten Pulverzerstäuber ist die Tatsache, dass eine Spülung des Glockentellers nur in Bearbeitungspausen möglich ist, wenn kein Pulver-Luftgemisch in den Spaltkanal gefördert wird.A disadvantage of this known Pulverzerstäuber is the fact that a flushing of the bell cup is possible only during processing breaks when no powder-air mixture is conveyed into the gap channel.

Weiterhin sind aus DE 195 06 969 A1 und US 6 341 734 B1 Glockenteller bekannt, die zusätzlich zu dem Beschichtungsmittelkanal einen Spülmittelkanal aufweisen. Der zusätzliche Spülmittelkanal dient hierbei jedoch lediglich zur Außenspülung des Glockentellers, indem Spülmittel aus dem Glockenteller heraus durch den Spülmittelkanal auf die Außenfläche des Glockenteller befördert wird.Furthermore are out DE 195 06 969 A1 and US Pat. No. 6,341,734 B1 Bell plate known in addition to the coating agent channel have a detergent channel. However, the additional detergent channel here serves only for external rinsing of the bell cup by rinsing agent is conveyed out of the bell cup out through the detergent channel on the outer surface of the bell cup.

Auch diese bekannten Glockenteller haben den Nachteil, dass eine. Spülung des Glockentellers und insbesondere des Beschichtungsmittelkanals nur in Bearbeitungspausen erfolgen kann, in denen kein Pulver-Luft-Gemisch zugeführt wird. Dies liegt daran, dass der Beschichtungsmittelkanal in dem Glockenteller nicht vollständig von dem Spülmittelkanal getrennt ist, so dass es bei einer Spülung während des Beschichtungsbetriebs zu einer Vermischung von Spülmittel und Beschichtungsmittel kommen würde.These known bell plates have the disadvantage that a. Rinsing of the bell cup and in particular of the coating agent channel can only take place during processing breaks, in which no powder-air mixture is supplied. This is due to the fact that the coating agent channel in the bell cup is not completely separated from the detergent channel, so that a rinse during the coating operation would lead to a mixing of rinsing agent and coating agent.

Ferner sind Glockenteller bzw. Pulversprüheinrichtungen aus DE 39 12 700 C1 , DE 195 42 863 A1 , DE 37 16 776 A1 , DE 35 28 084 A1 sowie EP 0 283 918 A2 bekannt. Diese Glockenteller haben jedoch ebenfalls den Nachteil, dass während des Beschichtungsbetriebs keine Spülung des Glockentellers möglich ist.Furthermore, bell plates or powder sprayers are made DE 39 12 700 C1 . DE 195 42 863 A1 . DE 37 16 776 A1 . DE 35 28 084 A1 such as EP 0 283 918 A2 known. However, these bell cups also have the disadvantage that no rinsing of the bell cup is possible during the coating operation.

Schließlich ist aus US 6 105 886 A , GB 2 253 165 A , DE 37 20 200 A1 , US 5 106 025 A , US 5 137 215 A , US 2002/170580 A1 , EP 0 379 373 A , US 2002/043576 A1 weiterer Stand der Technik bekannt, der jedoch ebenfalls unbefriedigend ist.Finally is off US 6 105 886 A . GB 2 253 165 A . DE 37 20 200 A1 . US 5 106 025 A . US 5 137 215 A . US 2002/170580 A1 . EP 0 379 373 A . US 2002/043576 A1 Another known prior art, however, is also unsatisfactory.

Der Erfindung liegt deshalb die Aufgabe zugrunde, den eingangs beschriebenen bekannten Pulverzerstäuber zu verbessern.The invention is therefore based on the object to improve the known Pulverzerstäuber described above.

Diese Aufgabe wird, ausgehend von dem vorstehend beschriebenen bekannten Glockenteller gemäß dem Oberbegriff des Anspruchs 1, durch die kennzeichnenden Merkmale des Anspruchs 1 und - hinsichtlich eines entsprechenden Rotationszerstäubers - durch die Merkmale des Anspruchs 7 gelöst.This object is achieved on the basis of the above-described known bell cup according to the preamble of claim 1, by the characterizing features of claim 1 and - with respect to a corresponding rotary atomizer - by the features of claim 7.

Die Erfindung umfasst die allgemeine technische Lehre, in dem Glockenteller zusätzlich zu dem Beschichtungsmittelkanal einen separaten Spülmittelkanal vorzusehen, damit das Spülmittel unabhängig von dem Beschichtungsmittel gefördert werden kann, so dass auch während des Beschichtungsbetriebs eine Spülung des Glockentellers ermöglicht ist, um diesen von anhaftenden Beschichtungsmittelresten zu reinigen.The invention encompasses the general technical teaching of providing a separate detergent channel in the bell cup in addition to the coating agent channel, so that the rinse agent can be conveyed independently of the coating agent, so that rinsing of the bell cup is also made possible during the coating operation in order to prevent it from adhering coating agent residues clean.

Der im Rahmen der Erfindung verwendete Begriff eines von dem Beschichtungsmittelkanal getrennten Spülmittelkanals ist bei dem bevorzugten Ausführungsbeispiel der Erfindung dahingehend zu verstehen, dass zwischen dem Beschichtungsmittelkanal und dem Spülmittelkanal in dem Glockenteller keine Verbindung besteht, so dass es bei einer Spülung während des Beschichtungsbetriebs nicht zu einer Vermischung von Spülmittel und Beschichtungsmittel kommen kann. Der Beschichtungsmittelkanal und der Spülmittelkanal werden also bei dem bevorzugten Ausführungsbeispiel getrennt mit Spülmittel bzw. Beschichtungsmittel gespeist. Hierzu weisen der Spülmittelkanal und der Beschichtungsmittelkanal vorzugsweise räumlich und/oder fluidisch getrennte Einspeiseöffnungen bzw. Eingangsöffnungen auf.In the preferred embodiment of the invention, the term of a rinsing agent channel which is separate from the coating agent channel is to be understood as meaning that there is no connection between the coating agent channel and the rinsing agent channel in the bell-shaped plate, so that it does not form a rinse during the coating operation Mixing of detergent and coating can come. The coating agent channel and the detergent channel are thus supplied separately with rinsing agent or coating agent in the preferred embodiment. For this purpose, the flushing agent channel and the coating agent channel preferably have spatially and / or fluidically separate inlet openings or inlet openings.

Entsprechend weist der erfindungsgemäße Rotationszerstäuber einen Beschichtungsmittelkanal und einen separaten Spülmittelkanal auf, wobei die Austrittsöffnung des Spülmittelkanals von der Austrittsöffnung des Beschichtungsmittelkanals getrennt ist, um das Spülmittel getrennt von dem Beschichtungsmittelkanal zu dem Glockenteller leiten zu können. Dies bedeutet bei dem bevorzugten Ausführungsbeispiel, dass zwischen der Austrittsöffnung des Spülmittelkanals und der Austrittsöffnung des Beschichtungsmittelkanals keine Verbindung besteht, um eine Vermischung von Spülmittel und Beschichtungsmittel zu verhindern. Die Austrittsöffnungen des Spülmittelkanals und des Beschichtungsmittelkanals sind also vorzugsweise fluidisch und/oder räumlich getrennt.Accordingly, the rotary atomizer according to the invention has a coating agent channel and a separate flushing agent channel, the outlet opening of the flushing agent channel being separated from the outlet opening of the coating agent channel in order to be able to conduct the flushing agent separately from the coating agent channel to the bell cup. This means in the preferred embodiment that between the outlet opening of the detergent channel and the outlet opening of the coating agent channel is no connection to prevent mixing of detergent and coating agent. The outlet openings of the detergent channel and the coating agent channel are therefore preferably fluidically and / or spatially separated.

Die Erfindung ist nicht auf die Verwendung bei dem eingangs beschriebenen Pulverzerstäuber beschränkt, bei dem als Beschichtungsmittel ein Pulver zum Einsatz kommt. Es ist vielmehr theoretisch auch denkbar, dass die Erfindung bei einem Rotationszerstäuber und einem entsprechend angepassten Glockenteller für flüssige Beschichtungsmittel zum Einsatz kommt.The invention is not limited to use in the powder atomizer described above, in which a powder is used as coating agent. Rather, it is theoretically also conceivable that the invention is used in a rotary atomizer and a correspondingly adapted bell cup for liquid coating compositions.

Besonders vorteilhaft ist die erfindungsgemäße Trennung des Beschichtungsmittelkanals von dem Spülmittelkanal bei Glockentellern, die eine Hochspannungselektrode aufweisen, da eine derartige Hochspannungselektrode während des Beschichtungsbetriebs durch abgesprühtes Beschichtungsmittel abgedeckt werden kann, wodurch sich die Wirkung der Hochspannungselektrode mit zunehmender Dauer des Beschichtungsbetriebs verschlechtert. Der in dem Glockenteller angeordnete Spülmittelkanal weist deshalb vorzugsweise eine Austrittsöffnung auf, die auf die Hochspannungselektrode gerichtet ist, um während des Beschichtungsbetriebs eine Verunreinigung der Hochspannungselektrode durch abgesprühtes Beschichtungsmittel zu verhindern. Diese Spülung der Hochspannungselektrode während des Beschichtungsbetriebs verhindert vorteilhaft eine Ablagerung von Beschichtungsmittel an der Hochspannungselektrode, so dass auch bei einem lang andauernden Beschichtungsbetrieb keine Unterbrechungen erforderlich sind, um die Hochspannungselektrode zu reinigen.Particularly advantageous is the inventive separation of the coating agent channel of the detergent channel with bell plates having a high voltage electrode, since such a high voltage electrode during the coating operation by sprayed coating agent can be covered, whereby the effect of the high voltage electrode deteriorates with increasing duration of the coating operation. The rinsing agent channel arranged in the bell cup therefore preferably has an outlet opening which is directed onto the high-voltage electrode in order to prevent contamination of the high-voltage electrode by sprayed-on coating agent during the coating operation. This flushing of the high-voltage electrode during the coating operation advantageously prevents deposition of coating agent on the high-voltage electrode, so that even in a long-lasting coating operation, no interruptions are required to clean the high-voltage electrode.

In einer bevorzugten Ausführungsform der Erfindung weist die Hochspannungselektrode eine Elektrodennadel auf, wobei der Spülmittelstrom im wesentlichen mantelförmig und koaxial zu der Elektrodennadel verläuft. Die Elektrodennadel ist dadurch während des Beschichtungsbetriebs stets von einer schützenden Spülmittelschicht umgeben, wodurch Ablagerungen von Beschichtungsmittel an der Elektrodennadel verhindert werden.In a preferred embodiment of the invention, the high-voltage electrode has an electrode needle, wherein the flushing agent flow is substantially jacket-shaped and coaxial with the electrode needle. The electrode needle is thereby always surrounded during the coating operation by a protective detergent layer, whereby deposits of coating agent are prevented at the electrode needle.

Erfindungsgemäß verläuft der Beschichtungsmittelkanal wie bei dem eingangs beschriebenen bekannten Pulverzerstäuber zwischen einem Innenteil und einem Außenteil des Glockentellers, wobei das Innenteil durch mindestens einen hohlen Verbindungsbolzen mit dem Außenteil verbunden ist, während der Spülmittelkanal durch den hohlen Verbindungsbolzen hindurch verläuft. Der Verbindungsbolzen dient hierbei also zum einen zur mechanischen Fixierung des Innenteils des Glockentellers an dem Außenteil des Glockentellers und bildet darüber hinaus einen Teil des Spülmittelkanals.According to the invention, the coating agent channel runs as in the case of the known powder atomizer described above an inner part and an outer part of the bell cup, wherein the inner part is connected by at least one hollow connecting bolt with the outer part, while the detergent channel passes through the hollow connecting bolt. The connecting bolt thus serves on the one hand for mechanical fixation of the inner part of the bell cup on the outer part of the bell cup and also forms part of the detergent channel.

Die Fixierung des Verbindungsteils in dem Innenteil des Glockentellers erfolgt hierbei vorzugsweise durch eine Befestigungsschraube, wobei sich der Kopf dieser Befestigungsschraube vorzugsweise an dem Innenteil des Glockentellers abstützt, während das Gewinde der Befestigungsschraube in ein Innengewinde eingreift, das an der Innenwand des hohlen Verbindungsbolzens angebracht ist. Vorzugsweise weist die Befestigungsschraube hierbei eine axial durchgehende Bohrung zur Durchleitung des Spülmittels auf, so dass der hohle Verbindungsbolzen durch die Befestigungsschraube nicht verschlossen wird.The fixing of the connecting part in the inner part of the bell cup is in this case preferably by a fastening screw, wherein the head of this fastening screw is preferably supported on the inner part of the bell cup, while the thread of the fastening screw engages in an internal thread which is attached to the inner wall of the hollow connecting bolt. Preferably, the fastening screw in this case has an axially continuous bore for the passage of the rinsing agent, so that the hollow connecting bolt is not closed by the fastening screw.

Vorzugsweise läuft der in dem Glockenteller angeordnete Spülmittelkanal bei einer Drehung des Glockentellers mit dem Glockenteller um, wobei in dem Glockenteller zur Erreichung eines ausreichend großen Spülmittelstroms vorzugsweise mehrere Spülmittelkanäle angeordnet sind, die beispielsweise über dem Umfang des Glockentellers verteilt in gleichmäßigen Winkelabständen angeordnet sein können.Preferably arranged in the bell cup dishwashing agent runs on rotation of the bell cup with the bell cup, wherein in the bell cup to achieve a sufficiently large detergent flow preferably more detergent channels are arranged, which can be distributed, for example, distributed over the circumference of the bell cup at regular angular intervals.

Die Zuführung des Spülmittels zu dem Glockenteller erfolgt vorzugsweise durch den Rotationszerstäuber, der hierzu einen separaten Spülmittelkanal aufweist, der von dem Beschichtungsmittelkanal des Rotationszerstäubers getrennt ist. Wichtig ist hierbei auch, dass die Austrittsöffnung des Spülmittelkanals des Rotationszerstäubers von der Austrittsöffnung des Beschichtungsmittelkanals des Rotationszerstäubers getrennt ist, damit der Rotationszerstäuber dem Glockenteller das Spülmittel getrennt von dem Beschichtungsmittel auch während des Beschichtungsbetriebs zuführen kann.The supply of the rinsing agent to the bell cup is preferably carried out by the rotary atomizer, which for this purpose has a separate detergent channel, which is separated from the coating agent channel of the rotary atomizer. It is also important that the outlet opening of the detergent channel of the rotary atomizer is separated from the outlet opening of the coating agent channel of the rotary atomizer, so that the rotary atomizer the dish can be supplied to the bell cup separately from the coating agent during the coating operation.

Es ist jedoch alternativ auch möglich, dass die Zuführung des Spülmittels nicht durch den Rotationszerstäuber erfolgt, sondern durch den erfindungsgemäßen Glockenteller selbst. In einer Variante der Erfindung weist der Glockenteller deshalb eine Turbine auf, die mit dem Glockenteller umläuft, wobei die Turbine Umgebungsluft ansaugt und in den in dem Glockenteller angeordneten Spülmittelkanal fördert. Diese Variante des erfindungsgemäßen Glockentellers ermöglicht auch mit einem herkömmlichen Rotationszerstäuber ohne einen getrennten Spülmittelkanal eine Spülung des Glockentellers während des Beschichtungsbetriebs.However, it is alternatively also possible that the supply of the rinsing agent is not carried out by the rotary atomizer, but by the bell cup itself according to the invention. In one variant of the invention, the bell cup therefore has a turbine which rotates with the bell cup, wherein the turbine sucks ambient air and promotes in the arranged in the bell cup detergent channel. This variant of the bell cup according to the invention also makes it possible, with a conventional rotary atomizer without a separate detergent channel, to rinse the bell cup during the coating operation.

Bei der zuvor beschriebenen Variante der Erfindung mit der Zuführung des Spülmittels durch den Rotationszerstäuber weist der in dem Glockenteller angeordnete Spülmittelkanal eine Eintrittsöffnung auf, deren Querschnittsfläche rechtwinklig zu der Drehachse des Glockentellers verläuft. Entsprechend weist der in dem Rotationszerstäuber angeordnete Spülmittelkanal dann ebenfalls eine Austrittsöffnung auf, deren Querschnittsfläche rechtwinklig zu der Drehachse der Glockentellerwelle verläuft. Im Betrieb liegt die Eintrittsöffnung des in dem Glockenteller angeordneten Spülmittelkanals dann mit einem geringen Spalt vor der Austrittsöffnung des in dem Rotationszerstäuber angeordneten Spülmittelkanals, wodurch eine dynamische Abdichtung bewirkt wird.In the variant of the invention described above with the supply of the rinsing agent by the rotary atomizer, the rinsing agent channel arranged in the bell-shaped plate has an inlet opening whose cross-sectional surface extends at right angles to the axis of rotation of the bell-shaped plate. Accordingly, the rinsing agent channel arranged in the rotary atomizer then also has an outlet opening whose cross-sectional area extends at right angles to the axis of rotation of the bell-tower shaft. In operation, the inlet opening of the rinsing agent channel arranged in the bell cup is then located with a slight gap in front of the outlet opening of the rinsing agent channel arranged in the rotary atomizer, whereby a dynamic sealing is effected.

Der in dem Rotationszerstäuber angeordnete Spülmittelkanal mündet in dem Rotationszerstäuber vorzugsweise in einen Ringkanal, der zu der Glockentellerwelle koaxial angeordnet ist und eine bezüglich der Glockentellerwelle ringförmig umlaufende Austrittsöffnung aufweist. Auf diese Weise ist unabhängig von der Drehstellung des Glockentellers stets eine Zuführung von Spülmittel von dem Rotationszerstäuber zu dem Glockenteller gewährleistet.The rinsing agent channel arranged in the rotary atomiser preferably discharges into the rotary atomiser into an annular channel which is arranged coaxially with the bell-shaped plate shaft and has an outlet opening which runs annularly with respect to the bell-plate shaft. In this way, regardless of the rotational position of the bell plate is always a supply of detergent ensured by the rotary atomizer to the bell cup.

In dem erfindungsgemäßen Rotationszerstäuber ist der Spülmittelkanal vorzugsweise feststehend angeordnet, jedoch ist es theoretisch auch möglich, dass der Spülmittelkanal in dem Rotationszerstäuber mit der Glockentellerwelle umläuft.In the rotary atomizer according to the invention, the flushing agent channel is preferably arranged fixedly, but it is theoretically also possible that the flushing agent channel in the rotary atomizer rotates with the bell-tower shaft.

Ferner ist zu erwähnen, dass die Erfindung hinsichtlich des zu verwendenden Spülmittels nicht auf Umgebungsluft oder Druckluft beschränkt ist. Es ist vielmehr auch möglich, andere Spülmittel einzusetzen, die für den Fachmann hinlänglich bekannt sind.It should also be mentioned that the invention is not limited to ambient air or compressed air with regard to the rinsing agent to be used. Rather, it is also possible to use other rinsing agents that are well known to those skilled in the art.

Andere vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet oder werden nachstehend zusammen mit der Beschreibung der bevorzugten Ausführungsbeispiele der Erfindung anhand der Figuren näher erläutert. Es zeigen:

Figur 1
eine Querschnittsansicht eines erfindungsgemäßen Rotationszerstäubers mit einem erfindungsgemäßen Glockenteller,
Figur 2
ein alternatives Ausführungsbeispiel eines erfindungsgemäßen Glockentellers mit einer Turbine zur Förderung von Spülmittel,
Figur 3
die Turbine des Glockentellers aus Figur 2 in einer perspektivischen Darstellung.
Other advantageous developments of the invention are characterized in the subclaims or are explained in more detail below together with the description of the preferred embodiments of the invention with reference to FIGS. Show it:
FIG. 1
a cross-sectional view of a rotary atomizer according to the invention with a bell cup according to the invention,
FIG. 2
an alternative embodiment of a bell cup according to the invention with a turbine for the promotion of detergent,
FIG. 3
the turbine of the bell plate FIG. 2 in a perspective view.

Die Querschnittsansicht in Figur 1 zeigt einen Rotationszerstäuber 1 zur Pulverbeschichtung von Werkstücken sowie einen entsprechend angepassten erfindungsgemäßen Glockenteller 2. Der Rotationszerstäuber 1 eignet sich in Verbindung mit dem Glockenteller 2 insbesondere zur Pulverbeschichtung von Kraftfahrzeug-Karosserieteilen in der Serienfertigung, jedoch ist auch die Beschichtung anderer Werkstücke möglich.The cross-sectional view in FIG. 1 shows a rotary atomizer 1 for powder coating of workpieces and a correspondingly adapted bell cup according to the invention 2. The rotary atomizer 1 is suitable in connection with the bell cup 2 in particular for powder coating of motor vehicle body parts in series production, but also the coating of other workpieces is possible.

Der Glockenteller 2 besteht im Wesentlichen aus einem Außenteil 3 und einem zu ihm koaxialen, axial von ihm beabstandeten Innenteil 4, wobei zwischen dem Außenteil 3 und dem Innenteil ein ringspaltförmiger Beschichtungsmittelkanal 5 verläuft, der sich im Inneren des Glockentellers 2 darstellungsgemäß über den gesamten Umfang des Glockentellers 2 erstreckt und sich in axialer Richtung zu dem freien Ende des Glockentellers 2 hin konisch erweitert. Die von dem Außenteil 3 und dem Innenteil 4 gebildeten Begrenzungsflächen des Beschichtungskanals 5 verlaufen hierbei nicht exakt parallel, sondern nähern sich zu der Mündungsöffnung des Beschichtungskanals 5 hin an, so dass der Querschnitt des Beschichtungsmittelkanals 5 zu dessen Mündungsöffnung hin abnimmt, was zu einer Beschleunigung des Beschichtungsmittelstroms in dem Beschichtungsmittelkanal 5 führt.The bell cup 2 consists essentially of an outer part 3 and a coaxial to him, axially spaced from him inner part 4, wherein between the outer part 3 and the inner part an annular gap-shaped coating agent channel 5 extends, as shown in the interior of the bell cup 2 over the entire circumference of Bell plate 2 extends and widens conically in the axial direction to the free end of the bell cup 2. The boundary surfaces of the coating channel 5 formed by the outer part 3 and the inner part 4 do not run exactly parallel, but approach the mouth opening of the coating channel 5, so that the cross section of the coating medium channel 5 decreases towards the mouth opening, which accelerates the Coating agent stream in the coating agent channel 5 leads.

In das Innenteil 4 des Glockentellers 2 ist mittig ein Mittelteil 6 eingesetzt, dass an der in der Zeichnung rechts liegenden Seite ansatzlos in das Innenteil übergeht und eine Spitze aufweist, die sich zu der dem Rotationszerstäuber 1 zugewandten Seite des Glockentellers 2 hin kegelförmig verjüngt.In the inner part 4 of the bell cup 2, a middle part 6 is centrally used that seamlessly merges at the side lying right in the drawing into the inner part and has a tip which tapers conically towards the rotary atomizer 1 facing side of the bell cup 2.

In dem Mittelteil 6 befindet sich auf der in der Zeichnung links liegenden Seite des Glockentellers 2 eine topfförmige zylindrische Vertiefung, in die ein Einsatzkörper 7 eingesetzt ist, wobei der Einsatzkörper 7 eine axial durchgehende Bohrung aufweist, durch die eine mittig angeordnete Elektrodennadel 8 einer Hochspannungselektrode 9 axial nach außen hindurch ragt. Die Hochspannungselektrode 9 steht während des Beschichtungsbetriebs unter Hochspannung und dient zur elektrischen Aufladung des von dem Glockenteller 2 abgegebenen Pulver-Luftgemischs und zur Ionisierung des Luftraums zwischen dem Rotationszerstäuber 1 und dem zu beschichtenden Werkstück.In the middle part 6 is located on the left in the drawing side of the bell cup 2, a cup-shaped cylindrical recess into which an insert body 7 is inserted, wherein the insert body 7 has an axially continuous bore through which a centrally disposed electrode needle 8 a high voltage electrode protrudes axially outward. The high-voltage electrode 9 is under high voltage during the coating operation and serves to electrically charge the powder-air mixture discharged from the bell cup 2 and to ionize the air space between the rotary atomizer 1 and the workpiece to be coated.

Die mechanische Verbindung des Innenteils 3 mit dem Außenteil 4 erfolgt durch mehrere axial verlaufende hohle Verbindungsbolzen 10, die über den Umfang des Glockentellers 2 verteilt in gleichmäßigen Winkelabständen angeordnet sind.The mechanical connection of the inner part 3 with the outer part 4 is effected by a plurality of axially extending hollow connecting bolts 10, which are arranged distributed over the circumference of the bell cup 2 at equal angular intervals.

Die Fixierung des Verbindungsbolzens 10 in dem Innenteil erfolgt hierbei durch eine Befestigungsschraube 11, deren Kopf sich in dem Innenteil 4 abstützt, wobei die Befestigungsschraube 11 ein Außengewinde aufweist, das im montierten Zustand in ein Innengewinde in dem hohlen Verbindungsbolzen 10 eingreift.The fixing of the connecting bolt 10 in the inner part takes place here by a fastening screw 11, the head of which is supported in the inner part 4, wherein the fastening screw 11 has an external thread which engages in the mounted state in an internal thread in the hollow connecting bolt 10.

Zur Fixierung des Verbindungsbolzens 10 in dem Außenteil 3 weist der Verbindungsbolzen 10 dagegen auf der dem Rotationszerstäuber 1 zugewandten Seite einen gegenüber dem Schaftbereich des Verbindungsbolzens 10 verdickten Kopf auf, der sich beim Anziehen der Befestigungsschraube 11 an dem Außenteil 3 abstützt.For fixing the connecting bolt 10 in the outer part 3, the connecting bolt 10, however, on the rotary atomizer 1 side facing a thickened relative to the shaft portion of the connecting bolt 10 head, which is supported when tightening the fastening screw 11 on the outer part 3.

Um während des Beschichtungsbetriebs eine Ablagerung von Beschichtungsmittel an der Elektrodennadel 8 zu verhindern, ermöglicht der erfindungsgemäße Glockenteller 2 eine Spülung der Elektrodennadel 8 mit Spülluft, wobei der Spülluftstrom die Elektrodennadel 8 axial und mantelförmig umströmt, wie aus der Zeichnung ersichtlich ist. Die Zuführung der Spülluft erfolgt hierbei in dem Glockenteller 2 durch einen Spülluftkanal, wobei der Spülluftkanal von der Elektrodennadel 8 ausgehend zunächst durch eine in dem Einsatzkörper 7 angeordnete, radial verlaufende Stichbohrung 12 gebildet wird, die in dem Mittelteil 6 in eine entsprechende Anschlußbohrung 13 übergeht. Weiterhin wird der Spülmittelkanal in dem Glockenteller 2 dann durch eine Bohrung gebildet, die axial durch die Befestigungsschraube 11 hindurch geht und das Innere des hohlen Verbindungsbolzens 10 mit der Anschlussbohrung 13 verbindet, so dass auch das Innere des Verbindungsbolzens 10 einen Teil des Spülmittelkanals bildet.In order to prevent deposition of coating agent on the electrode needle 8 during the coating operation, the bell cup 2 according to the invention makes it possible to rinse the electrode needle 8 with purging air, the purging air stream flowing around the electrode needle 8 in an axial and jacket-like manner, as can be seen from the drawing. The scavenging air is supplied here in the bell cup 2 by a scavenging air channel, the scavenging air channel initially being formed from the electrode needle 8 by a radially extending needle bore 12 which merges into a corresponding connecting bore 13 in the middle part 6. Furthermore, the detergent channel in the bell cup 2 is then formed by a bore which passes axially through the fastening screw 11 and connects the interior of the hollow connecting bolt 10 with the connecting bore 13, so that the interior of the connecting bolt 10 forms part of the detergent channel.

Die Zuführung des Spülmittels zu dem Spülmittelkanal des Glockentellers 2 erfolgt hierbei durch den Rotationszerstäuber 1, der hierzu ebenfalls einen Spülmittelkanal aufweist, der in einem Gehäuse 14 des Rotationszerstäubers 1 verläuft, wobei der Spülmittelkanal des Rotationszerstäubers 1 durch mehrere Leitungen 15 - 18 gebildet wird, die schließlich in einen Ringkanal 19 münden, der eine ringförmig umlaufende Austrittsöffnung aufweist, wobei die Austrittsöffnung des Ringkanals 19 an der freien Stirnseite des Rotationszerstäubers 1 liegt und bei montiertem Glockenteller 2 mit einem geringen Spalt vor der Mündungsöffnung des hohlen Verbindungsbolzens 10 liegt, so dass unabhängig von der Drehstellung des Glockentellers 2 stets Spülluft aus dem Ringkanal 19 in den Spülkanal des Glockentellers 2 übertreten kann.The supply of the rinsing agent to the detergent channel of the bell cup 2 takes place here by the rotary atomizer 1, which also has a detergent channel, which runs in a housing 14 of the rotary atomizer 1, wherein the detergent channel of the rotary atomizer 1 is formed by a plurality of lines 15 - 18, the finally open into an annular channel 19, which has an annular circumferential outlet opening, wherein the outlet opening of the annular channel 19 is located on the free end face of the rotary atomizer 1 and is mounted with the bell cup 2 with a small gap in front of the mouth opening of the hollow connecting bolt 10, so that regardless of the rotational position of the bell cup 2 always purge air from the annular channel 19 can pass into the flushing channel of the bell cup 2.

Weiterhin weist der Rotationszerstäuber 1 eine drehbar gelagerte Glockentellerwelle 20 auf, die an ihrem freien Ende ein Innengewinde trägt.Furthermore, the rotary atomizer 1 has a rotatably mounted bell-plate shaft 20, which carries an internal thread at its free end.

Das Außenteil 3 des Glockentellers 2 weist ein entsprechend angepasstes Außengewinde auf, so dass der Glockenteller 2 im montierten Zustand auf die Glockentellerwelle 20 aufgeschraubt ist.The outer part 3 of the bell cup 2 has a correspondingly adapted external thread, so that the bell cup 2 is screwed onto the bellcylinder shaft 20 in the mounted state.

Darüber hinaus weist der Rotationszerstäuber 1 einen Beschichtungsmittelkanal 21 auf, der durch das Innere eines mittig angeordneten Pulverrohrs 22 gebildet wird.In addition, the rotary atomizer 1 has a coating agent channel 21, which is formed by the interior of a centrally arranged powder tube 22.

Bei dem erfindungsgemäßen Rotationszerstäuber 1 ist der Beschichtungsmittelkanal 21 also von dem Spülmittelkanal 15 - 19 getrennt, wobei auch die Austrittsöffnungen des Beschichtungsmittelkanals 21 und des Spülmittelkanals 15 - 19 voneinander getrennt sind, um eine unabhängige Zuführung von Spülmittel und Beschichtungsmittel zu ermöglichen.In the case of the rotary atomizer 1 according to the invention, the coating agent channel 21 is thus separated from the flushing agent channel 15-19, wherein the outlet openings of the coating medium channel 21 and the flushing agent channel 15-19 are also separated from one another in order to allow independent supply of flushing agent and coating agent.

Darüber hinaus ist auch der Beschichtungsmittelkanal 5 in dem Glockenteller 2 von dem Spülmittelkanal 12, 13 in dem Glockenteller 2 getrennt, so dass die Spülung der Elektrodennadel 8 während des eigentlichen Beschichtungsbetriebs erfolgen kann.In addition, the coating agent channel 5 in the bell cup 2 is separated from the detergent channel 12, 13 in the bell cup 2, so that the rinsing of the electrode needle 8 can take place during the actual coating operation.

Das in Figur 2 dargestellte alternative Ausführungsbeispiel eines erfindungsgemäßen Glockentellers 2' stimmt weitgehend mit dem vorstehend beschriebenen und in Figur 1 dargestellten Ausführungsbeispiel des Glockentellers 2 überein, so dass im Folgenden weitgehend auf die vorstehende Beschreibung zu Figur 1 verwiesen wird und für übereinstimmende beziehungsweise einander entsprechende Bauteile dieselben Bezugszeichen verwendet werden, die lediglich zur Unterscheidung durch ein Apostroph gekennzeichnet sind.This in FIG. 2 illustrated alternative embodiment of a bell cup 2 'according to the invention is largely consistent with that described above and in FIG. 1 illustrated embodiment of the bell cup 2, so that in the following largely to the above description FIG. 1 is referenced and for identical or corresponding components, the same reference numerals are used, which are characterized only for distinction by an apostrophe.

Eine Besonderheit des Glockentellers 2' besteht darin, dass die . Zuführung der Spülluft zu dem Glockenteller 2' nicht durch den in Figur 1 ebenfalls dargestellten Rotationszerstäuber 1 erfolgt, sondern durch eine Turbine 23', die detailliert in Figur 3 dargestellt ist und sich mit dem Glockenteller 2' dreht. Während des Beschichtungsbetriebs bei sich drehendem Glockenteller 2' saugt die Turbine 23' Umgebungsluft an und fördert diese in das Innere des Verbindungsbolzens 10' und damit in den Spülmittelkanal des Glockentellers 2'.A special feature of the bell plate 2 'is that the. Feeding the scavenging air to the bell cup 2 'not by the in FIG. 1 also shown rotary atomizer 1, but by a turbine 23 ', the detailed in FIG. 3 is shown and rotates with the bell cup 2 '. During the coating operation with rotating bell cup 2 ', the turbine 23' sucks in ambient air and conveys it into the interior of the connecting bolt 10 'and thus into the flushing agent channel of the bell cup 2'.

Die Erfindung ist nicht auf die vorstehend beschriebenen bevorzugten Ausführungsbeispiele beschränkt. Vielmehr ist eine Vielzahl von Varianten und Abwandlungen möglich, die ebenfalls von dem Erfindungsgedanken Gebrauch machen und deshalb in den Schutzbereich fallen.The invention is not limited to the preferred embodiments described above. Rather, a variety of variants and modifications is possible, which also make use of the inventive idea and therefore fall within the scope.

Claims (9)

  1. Bell plate (2, 2', 2") for a rotary atomiser (1) for the coating of workpieces, in particular for powder coating, with
    - a coating medium channel (5, 5', 5 ") for delivery of a coating medium for the coating of the workpieces,
    - wherein the coating medium channel (5, 5', 5") extends between an inner part (4, 4', 4") and an outer part (3, 3', 3"),
    characterised in that
    - a flushing medium channel (12, 12', 13, 13') is provided for delivery of a flushing medium for cleansing the bell plate (2, 2', 2") of adhering coating medium residues,
    - wherein the flushing medium channel (12, 12', 13, 13') is separated from the coating medium channel (5, 5', 5") in order to prevent contamination of the flushing medium by the coating medium and to enable flushing during the coating operation,
    - wherein the inner part (4, 4', 4") is connected by at least one hollow connecting bolt (10, 10', 10") to the outer part (3, 3', 3"), whilst the flushing medium channel extends through the connecting bolt (10, 10', 10"),
    - wherein for fixing of the connecting bolt (10, 10') in the inner part (4, 4') a fixing screw (11, 1') is provided, wherein the fixing screw (11, 11') has an axial through bore for passage of the flushing medium.
  2. Bell plate (2, 2') as claimed in Claim 1, characterised in that a high-voltage electrode (9, 9') is provided for electrical charging of the dispensed coating medium and the flushing medium channel (12, 12', 13, 13') has an outlet opening which is directed towards the high-voltage electrode (9, 9') in order to prevent contamination of the high-voltage electrode (9, 9') during the coating operation.
  3. Bell plate (2, 2', 2") as claimed in Claim 2, characterised in that the high-voltage electrode (9, 9') has an electrode needle (8, 8'), wherein the stream of flushing medium extends substantially in the shape of a shell and coaxially with respect to the electrode needle (8, 8').
  4. Bell plate (2, 2', 2") as claimed in at least one of the preceding claims, characterised in that the flushing medium channel (12,12', 13, 13') rotates with the bell plate (2, 2', 2").
  5. Bell plate (2, 2', 2") as claimed in at least one of the preceding claims, characterised in that for delivery of the flushing medium a turbine (23') is provided which rotates with the bell plate (2, 2', 2"), draws in ambient air and conveys it as flushing medium into the flushing medium channel (12, 12', 13, 13').
  6. Bell plate (2, 2', 2") as claimed in at least one of the preceding claims, characterised in that for delivery of the flushing medium from the rotary atomiser (1) the flushing medium channel has an inlet opening, the cross-section of which extends at right angles to the axis of rotation of the bell plate (2, 2', 2").
  7. Rotary atomiser (1) for the coating of workpieces, in particular for powder coating, with
    - a rotatably mounted bell shaft (20, 20') for driving a bell plate (2, 2', 2"),
    - a coating medium channel (21, 21') for delivery of a coating medium to the bell plate (2, 2', 2"), and
    - a flushing medium channel 15 to 19) for delivery of a flushing medium for cleaning of the bell plate (2, 2', 2"),
    - wherein the flushing medium channel (15 to 19) and the coating medium channel (21) have towards the bell plate (2, 2', 2") outlet openings which are separate from one another in order to enable separate delivery of the coating medium and the flushing medium to the bell plate (2, 2', 2"),
    characterised in that
    the outlet opening of the flushing medium channel (15 to 19) has a cross-sectional area extending at right angles to the bell shaft (20, 20"), and on the bell shaft (20, 20') there is mounted a bell plate (2, 2', 2") as claimed in at least one f Claims 1 to 6, so that a dynamic seal is provided at the transition to the flushing medium channel of the bell plate (2, 2', 2").
  8. Rotary atomiser (1) as claimed in Claim 7, characterised in that the flushing medium channel (15 to 18) opens into an annular channel (19) which is disposed coaxially with respect to the bell shaft and has an outlet opening which runs round in an annular form relative to the bell shaft.
  9. Rotary atomiser (1) as claimed in at least one of Claims 7 to 8, characterised in that the flushing medium channel (15 to 19) is stationary.
EP04003653A 2003-02-27 2004-02-18 Rotating bell and rotary atomiser Expired - Lifetime EP1452235B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20314234U 2003-02-27
DE20314234 2003-02-27
DE10342188 2003-09-12
DE10342188A DE10342188A1 (en) 2003-02-27 2003-09-12 Bell plate and rotary atomizer

Publications (3)

Publication Number Publication Date
EP1452235A2 EP1452235A2 (en) 2004-09-01
EP1452235A3 EP1452235A3 (en) 2006-04-19
EP1452235B1 true EP1452235B1 (en) 2009-01-14

Family

ID=32773185

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04003653A Expired - Lifetime EP1452235B1 (en) 2003-02-27 2004-02-18 Rotating bell and rotary atomiser

Country Status (4)

Country Link
EP (1) EP1452235B1 (en)
AT (1) ATE420730T1 (en)
DE (2) DE10342188A1 (en)
ES (1) ES2320879T3 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009018294B4 (en) 2009-04-21 2018-08-09 Bayerische Motoren Werke Aktiengesellschaft mixing device

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4896834A (en) * 1984-08-30 1990-01-30 The Devilbiss Company Rotary atomizer apparatus
US4887770A (en) * 1986-04-18 1989-12-19 Nordson Corporation Electrostatic rotary atomizing liquid spray coating apparatus
GB2190606B (en) * 1986-05-19 1990-02-14 Graco Inc A rotary spray atomizer
DE3863562D1 (en) * 1987-03-23 1991-08-14 Behr Industrieanlagen DEVICE FOR ELECTROSTATIC COATING OF WORKPIECES.
DE3720200A1 (en) * 1987-06-16 1988-12-29 Ransburg Gmbh SPRAY COATING DEVICE WITH A ROTATIONAL SPRAY ORGAN
DE3912700C1 (en) * 1989-04-18 1990-10-11 Ransburg-Gema Gmbh, 6056 Heusenstamm, De Rotary spray coater - has atomiser ring with solvent channels, and includes annular air inlets
FR2652518B1 (en) * 1989-10-03 1994-04-08 Sames Sa DEVICE FOR PROJECTING A COATING PRODUCT WITH A ROTATING SPRAYING MEMBER.
FR2661115B1 (en) * 1990-04-24 1992-07-31 Sames Sa DEVICE FOR CENTRIFUGAL SPRAYING OF A COATING PRODUCT, ESPECIALLY FOR APPLICATION BY ELECTROSTATIC SPRAYING.
CA2061069C (en) * 1991-02-27 1999-06-29 Toshio Kubota Method of electrostatically spray-coating a workpiece with paint
DE19506969A1 (en) * 1995-02-13 1996-08-14 Ind Lackieranlagen Schmidt Gmb Fine atomiser for paint or lacquer
US6105886A (en) * 1995-05-19 2000-08-22 Nordson Corporation Powder spray gun with rotary distributor
DE19542863A1 (en) * 1995-11-17 1997-05-22 Abb Research Ltd Powder spray gun
US6578779B2 (en) * 2000-10-18 2003-06-17 Behr Systems, Inc. Rotary atomizer with bell element
US6341734B1 (en) * 2000-10-19 2002-01-29 Efc Systems, Inc. Rotary atomizer and bell cup and methods thereof
US6569258B2 (en) * 2001-05-16 2003-05-27 Fanuc Robotics North America, Inc. Method and apparatus for cleaning a bell atomizer spray head

Also Published As

Publication number Publication date
ES2320879T3 (en) 2009-05-29
EP1452235A3 (en) 2006-04-19
ATE420730T1 (en) 2009-01-15
EP1452235A2 (en) 2004-09-01
DE502004008850D1 (en) 2009-03-05
DE10342188A1 (en) 2004-09-16

Similar Documents

Publication Publication Date Title
EP0715896B1 (en) A rotary atomiser with a rotating bell
EP2099570B1 (en) Guiding air ring comprising a ring cavity and corresponding bell plate
EP2643096B1 (en) Cleaning device and cleaning brush for a sprayer and corresponding cleaning method
DE4330602C2 (en) Rotary atomizer device
EP0294606B1 (en) Apparatus for atomizing liquid paint
DE3001209A1 (en) DEVICE FOR FOGGING LIQUID COLOR
DE102006054786A1 (en) Operating method for a nebulizer and corresponding coating device
WO2009149950A1 (en) Universal atomizer
DE102007012878B3 (en) Sprayer e.g. electrostatic rotation sprayer, for spraying e.g. dye, has air nozzles formed inside central opening of sprayer cap for compressed air atomization, and channel supplying coating agent to sprayer head
EP0104394B1 (en) Device for atomising liquid paint
DE102005015604B4 (en) Rotationszerstäuberbauteil
DE3912700C1 (en) Rotary spray coater - has atomiser ring with solvent channels, and includes annular air inlets
DE102009048899A1 (en) nozzle assembly
EP3247502B1 (en) Bell cup of a rotary atomizer or deflecting air ring with an isolating coating
DE102018129964B4 (en) Rotary atomizer and its operating methods as well as coating robots with rotary atomizers
EP1685909B1 (en) Rotary atomizer for saving rinsing agent
EP1242190B1 (en) High-speed rotation atomiser for application of powder paint
EP1452235B1 (en) Rotating bell and rotary atomiser
EP0104395B1 (en) Paint mixing process and apparatus for carrying out this process
DE19506968A1 (en) Fine atomiser for paint or lacquer
EP0827781B1 (en) Rotary sprayer
DE112020006287T5 (en) COATING LIQUID MIXING DEVICE AND COATING LIQUID MIXING METHOD
DE19517477A1 (en) Air-turbine-driven rotary atomiser with built-in rinsing device
DE19961202C1 (en) Fixed inner spray nozzle to supply gas and powder mixture, for painting surfaces, has sleeve and insert, formed so that outer contour of insert forms Laval nozzle with inner contour of sleeve
DE10308630A1 (en) Bell-shaped plate for rotating atomizer used in coating workpieces, has detergent channels formed separate from central coating channel to prevent detergent from mixing with coating material during coating process

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

17P Request for examination filed

Effective date: 20060424

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20070411

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 502004008850

Country of ref document: DE

Date of ref document: 20090305

Kind code of ref document: P

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2320879

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090615

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090228

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090228

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090228

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

26N No opposition filed

Effective date: 20091015

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090414

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090715

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20090114

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20150218

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20150226

Year of fee payment: 12

Ref country code: ES

Payment date: 20150225

Year of fee payment: 12

Ref country code: DE

Payment date: 20150219

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20150218

Year of fee payment: 12

Ref country code: FR

Payment date: 20150219

Year of fee payment: 12

Ref country code: GB

Payment date: 20150218

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20150218

Year of fee payment: 12

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 502004008850

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502004008850

Country of ref document: DE

Representative=s name: V. BEZOLD & PARTNER PATENTANWAELTE - PARTG MBB, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502004008850

Country of ref document: DE

Owner name: DUERR SYSTEMS AG, DE

Free format text: FORMER OWNER: DUERR SYSTEMS GMBH, 74321 BIETIGHEIM-BISSINGEN, DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20160218

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20160301

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20161028

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160218

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160229

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160301

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160901

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20160219

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20181205

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230512