EP0899019A1 - Verfahren zum werkstückabhängigen Steuern eines elektrostatischen Beschichtungsgerätes und elektrostatische Beschichtungsanlage - Google Patents
Verfahren zum werkstückabhängigen Steuern eines elektrostatischen Beschichtungsgerätes und elektrostatische Beschichtungsanlage Download PDFInfo
- Publication number
- EP0899019A1 EP0899019A1 EP98113511A EP98113511A EP0899019A1 EP 0899019 A1 EP0899019 A1 EP 0899019A1 EP 98113511 A EP98113511 A EP 98113511A EP 98113511 A EP98113511 A EP 98113511A EP 0899019 A1 EP0899019 A1 EP 0899019A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating
- powder
- speed
- workpiece
- air
- 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.)
- Granted
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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
- B05B5/08—Plant for applying liquids or other fluent materials to objects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/085—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to flow or pressure of liquid or other fluent material to be discharged
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
- B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
- B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
- B05B12/122—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to presence or shape of target
Definitions
- the invention relates to a method for controlling an electrostatic Coating device, which is a coating medium like spraying powder or wet paint on a workpiece, as well an electrostatic coating system, which according to this Procedure can work.
- Coating booth with vertical slots in the side wall are provided. Coating guns spray through these slots the coating medium on the workpiece.
- the workpieces to be coated can have different sizes and have shapes, with narrow webs, large closed ones Surfaces, cavities, undercuts etc.
- Ensuring cavities can change the shape of the cloud from a coating gun dispensed coating medium can be varied. This is usually done through selection a suitable nozzle, e.g. a slot nozzle, the use a baffle or the like. The nozzles will replaced by hand in the prior art. To exchange operation of the coating system must be interrupted become. This is understandably time and labor-intensive.
- the invention has for its object a method for controlling an electrostatic coating device and Specify a new electrostatic powder coating system in which the cloud shape of the coating powder dispensed can be changed with the least possible effort and adapted to the shape of the workpiece.
- the invention takes advantage of the fact that the powder cloud shape by changing the amount or speed or influenced the mass flow of the applied coating medium can be, so that an automatic adjustment of the Cloud shape is possible without changing the spray nozzle.
- the cloud shape can also by setting special form vents (air coat) can be influenced.
- the speed and / or the quantity is preferred and / or the mass flow of the delivered coating medium or the shaped air volume flow measured.
- the cloud shape can be based on the quantity and speed or the mass flow of the coating medium in connection with the nozzle and, if necessary, the shaped air can be characterized.
- the workpiece to be coated is also preferably automatic recorded and identified.
- the coating installation according to the invention preferably has a measuring device and an actuating device for the Coating medium or the shaped air volume flow as well a part recognition and identification device at the entrance the coating booth.
- the part recognition and identification device recognizes the approach of a workpiece to be coated and its shape and nature. This is e.g. around an optical recognition device.
- the measuring device and the adjusting device are preferred integrated in the coating device or close to it arranged.
- Devices for measuring a powder mass flow which are for the purposes of the present invention are suitable in DE-A-4 406 046 and DE-A-195 50 112 to which reference is made.
- FIG. 1 shows an electrostatic powder coating system, in which the inventive method for controlling the Coating equipment can be applied.
- This powder coating machine is more detailed in the German patent application "Control system of a coating system" the same Applicant described with the same filing date. On the Disclosure of this patent application and in particular the explanation the network structure is referred to.
- Fig. 1 there are several (five) coating modules each a digital control device 60, an injector actuator 64 and a spray gun 66 shown are connected via a gun bus 62. These coating modules form self-regulating functional units, which their respective control signals from the digital control device 60 received. Information necessary for the regulation about the control unit receives the operating state of the coating system 60 via an internal bus 80.
- the multiple coating modules are via the internal bus 80 with each other, with a central control unit 82 and connected to other components of the system. Additional, modules that can be connected to the internal bus are e.g. a gap control module 86, a powder level control module 88, a position control module 90 and a motion control module 92.
- the central control unit 82 supplies the powder coating system with electrical power and compressed air. Further can the entire system in this control unit Emergency shutdown.
- the gap control module 86 is used to switch off the spray guns in the gaps between workpieces 200 or workpiece parts.
- the powder level control module 88 monitors the Level in a powder storage container
- the position control module 90 controls the position of the spray guns in the z direction, i.e. the distance from spray gun 66 to workpiece 200.
- the motion control module 92 controls vertical stroke and speed the up and down movement of the spray guns 66 depending on the height and speed of the coating Workpiece 200.
- Additional modules can be connected via an external bus 100 the central control unit 82; these include e.g. a powder center 102 with a powder storage container 104, a layer thickness measuring and control device 107, 108 and an air quantity control device 109 for a Powder recovery system 110, a parts detection and Identification device 111, a conveyor clock 112, a controller 106 for cabin cleaning and one associated cleaning device 116 and others
- the individual components configured as LON nodes are able to register themselves in the system, other system components recognize, adjust to them and with them communicate. You can see the information about each Operating conditions of the coating system they received via bus 80 or 100, evaluated automatically and use.
- FIG. 2 shows schematically an embodiment of a coating device 66 with integrated quantity sensor 50, integrated Speed sensor 52 and integrated high-voltage cascade 58.
- a set metered powder-air flow supplied with a nozzle 46 with a baffle 48 is issued.
- a high voltage generator which is shown schematically as a high-voltage cascade 58, a high voltage is generated and via a line 56 and an electrode (not shown) in the powder-air flow, to electrically charge the powder particles.
- a ground line 54 for grounding the Coating device 66 shown.
- the quantity sensor 50 and the speed sensor 52 serve to determine the powder density or powder speed in the conveyor line 10. They are below with reference to Figures 3 and 4 explained in more detail.
- FIGS. 3a and 3b show an embodiment of a microwave resonator 36 of the powder quantity sensor for determination the amount of powder per unit volume in the delivery line 10.
- the conveyor line is not electrically conductive, it will from the powder-air flow in the direction of the arrows in FIG. 3a flows through.
- the resonator 36 has shielding against interference fields a metal cylinder 38 to which an RF input 40 and a RF output 42 for coupling microwaves or for taking off the resonator voltage are provided.
- the resonator 44 is in the form of a Helix or coil, which is wound around the delivery line 10 is. This resonator takes up very little space, so that it can be integrated directly into the spray gun 66 can. With the helical resonator, a very precisely defined resonance and thus achieve a high quality.
- the helix resonator can e.g. as a thin film metal layer 44 are evaporated onto the delivery line 10, or a wire helix can be used.
- the resonance frequency of the resonator is measured and his goodness. These sizes are from the dielectric constant and the absorption (the loss factor) in the Resonance range dependent. The changes in the dielectric constant and the absorption are proportional to the change the amount of powder in the resonance range or resonance volume. It follows that a change in the amount of powder in Resonance volume to shift the resonance frequency and leads to a change in goodness. By measuring the Resonance frequency or the quality, can thus directly on the Powder quantity in the resonance volume can be inferred.
- the Method for determining the powder mass in the resonance volume is with further details in DE-A-44 06 046 and DE-A-196 50 112.
- Figure 4 shows schematically the structure of the speed measuring device.
- On the delivery line 10 are at a distance D two measuring electrodes 12, 14 attached, which over Signal lines 16, 18 and an amplifier 20 connected are.
- the outputs 22, 24 of the amplifier 20 are with a Measured value evaluation device 26 connected.
- the measuring electrodes consist of 12, 14 of copper rings around the delivery line 10 are laid around.
- the signal line 16, 18 and the amplifier 20 are grounded Shields 30, 32 and 34 respectively.
- the powder particles of the transported through the plastic line 10 Powder-air flow is charged by friction electrostatically with the plastic tubing.
- the speed measurement method is in more detail described in DE-A-44 06 046.
- the amount sensor 50 and the Speed sensor 52 can thus the amount of powder and the powder speed can be determined to the cloud shape to characterize the coating powder dispensed. From the measured speed and the measured amount of powder and the known dimensions of the delivery line 10 can also the powder mass flow of the coating powder be calculated, also for characterization the powder cloud can be used.
- the measurement signals are fed back to the digital control device 60 and with setpoints for powder quantity and speed compared for a workpiece to be coated.
- the actuator shown in FIG Powder-air flow and thus the desired powder cloud shape can be set.
- Figure 5 shows the actuator 64 for setting the Powder-air flow with an injector 120, a powder suction line 122, an air supply line 124, a proportional valve (No. 1) 126 for conveying air via a conveying air line 132 connected to the injector 120, one Proportional valve (No. 2) 128 for dosing air, which via a Dosing air line 134 is connected to the injector, and a proportional valve (No. 3) 130 for shaped air, which via a molded air line 136 directly to the spray gun 66 (Fig. 1) is connected.
- the conveying air line 132, the dosing air line 134 and the molded air line 136 are one Conveying air sensor 138, a metering air sensor 140 or a Shaped air sensor 142 assigned to the respective air volume flows to eat.
- Signal return lines 144 from the Sensors 138, 140 and 142 lead to an interface circuit 146, via an adapter 138 with a signal measuring line 62, such as the gun bus, can be connected.
- Control lines 150 lead from the interface circuit 146 the proportional valves 126, 128, 130.
- the sensor signals become digital via the gun bus 62 Control unit 60 performed and with the setpoints for the setting of proportional valves 126, 128 and 130 compared, and corresponding control signals are over the Gun bus 62 and the interface circuit 146 to the Valves guided to a desired powder-air flow adjust. If the cloud shape is additional or exclusive is influenced by regulating the shape air, the signal from the compressed air sensor 142 in the control unit 60 evaluated, and depending on the current workpiece shape a corresponding control signal is sent to the proportional valve No. 3 130.
- the outlet 152 of the injector 120 is via the delivery line 10 connected to the coating device 66.
- the speed and the density of the powder mass flow is recorded. These signals too become a digital control unit via the gun bus 62 returned and for the regulation of the powder-air flow used.
- FIGS. 6a to 6d show different powder cloud shapes, those with different nozzles as well as with different ones Powder-air flows can be obtained.
- the powder cloud automatically by changing the amount of powder and / or the powder speed become.
- the cloud shape can be influenced via the separately controlled shaping air.
Landscapes
- Electrostatic Spraying Apparatus (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Spray Control Apparatus (AREA)
Abstract
Description
eine neue elektrostatische Pulver-Beschichtungsanlage anzugeben, bei denen die Wolkenform des abgegebenen Beschichtungspulvers mit geringst möglichem Aufwand verändert und an die Gestalt des Werkstücks angepaßt werden kann.
- Figur 1
- eine elektrostatische Pulverbeschichtungsanlagemäß der Erfindung;
- Figur 2
- zeigt ein Beschichtungsgerät mit integriertem Mengensensor und Geschwindigkeitssensor für die Pulverbeschichtungsanlage der Figur 1;
- Figuren 3a und 3b
- zeigen eine Außenansicht bzw. eine schematische Teilschnittdarstellung eines Mikrowellenresonators des Mengensensors der Figur 2;
- Figur 4
- zeigt eine detailiertere Darstellung des Geschwindigkeitssensors der Figur 2;
- Figur 5
- zeigt eine Stelleinrichtung zur Einstellung der Pulverwolkenform gemäß der Erfindung; und
- Figuren 6a bis 6d
- zeigen verschiedene Pulverwolkenformen, die mit unterschiedlichen Düsenformen und Pulvermasseströmen erhalten werden.
Claims (13)
- Verfahren zum Steuern eines elektrostatischen Beschichtungsgerätes (66), das ein elektrostatisches geladenes Beschichtungspulver an ein Werkstück (200) abgibt, bei dem abhängig von der Gestalt des Werkstücks die Wolkenform des abgegebenen Beschichtungsmediums automatisch durch Regeln der Geschwindigkeit und/oder der Menge und/oder des Massen-stroms des abgegebenen Beschichtungsmediums und/oder durch Regeln eines Formluftstromes eingestellt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Geschwindigkeit und/oder die Menge und/oder der Massenstrom des abgegebenen Beschichtungsmediums gemessen wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß der Formluft-Volumenstrom gemessen wird.
- Verfahren nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß die Gestalt des Werkstücks (200) automatisch erfaßt wird.
- Elektrostatische Beschichtungsanlage mit mindestens einem Beschichtungsgerät zum Abgeben eines elektrostatisch geladenen Beschichtungspulvers dadurch gekennzeichnet, daß jedem Beschichtungsgerät eine Meßeinrichtung (36, 142) zur Bestimmung der Geschwindigkeit und/oder der Menge und/oder des Massenstroms des dem Beschichtungsgerät zugeführten Beschichtungsmediums und/oder eines Formluft-Volumenstromes, eine Stelleinrichtung (38, 130) zur Einstellung der Geschwindigkeit und/oder der Menge und/oder des Massenstroms des von dem Beschichtungsgerät abzugebenden Beschichtungsmediums und/oder des Formluft-Volumenstromes, um abhängig von der Gestalt eines Werkstücks die Wolkenform des abgegebenen Beschichtungsmediums automatisch einzustellen, und ein digitales Steuergerät (60) zugeordnet sind.
- Beschichtungsanlage nach Anspruch 5, dadurch gekennzeichnet, daß das Steuergerät (60), die Meßeinrichtung (36) und die Stelleinrichtung (38) über eine Busstruktur (62; 80) verbunden sind.
- Beschichtungsanlage nach Anspruch 5 oder 6, dadurch gekennzeichnet, daß mehrere Beschichtungsgeräte (66) vorhanden sind, die jeweils über einen Pistolenbus (62) mit ihrem zugeordneten digitalen Steuergerät (60) verbunden sind und einen Netzwerk-Knoten bilden, und daß die digitalen Steuergeräte (60) über einen Beschichtungsbus (80) mit weiteren Komponenten der Beschichtungsanlage verbunden sind.
- Beschichtungsanlage nach einem der Ansprüche 5 bis 7, gekennzeichnet durch eine Werkstückerkennungseinrichtung, die als ein Netzwerk-Knoten konfiguriert ist.
- Beschichtungsanlage nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Netzwerk-Knoten LON-Knoten sind.
- Beschichtungsanlage nach einem der Ansprüche 5 bis 9, dadurch gekennzeichnet, daß die Meßeinrichtung eine Geschwindigkeitsmeßvorrichtung (12-26) aufweist, mit zwei mit Abstand zueinander an einer Pulverförderleitung angebrachten Meßelektroden (12, 14), die von dem geförderten Pulver-Luft-Gemisch erzeugte Ladungsschwankungen an der Pulverförderleitung (10) erfassen und entsprechende Spannungssignale (A, B) bilden und an eine Meßwertverarbeitungsvorrichtung (26) ausgeben, welche aus dem zeitlichen Abstand (Δt) der Spannungssignale und dem vorgegebenen Abstand (D) zwischen den Meßelektroden (12, 14) die Geschwindigkeit des Pulver-Luft-Gemisches ermittelt.
- Beschichtungsanlage nach einem der Ansprüche 5 bis 10, dadurch gekennzeichnet, daß die Meßeinrichtung eine Massenmeßvorrichtung (12-26) aufweist, mit einem Mikrowellenresonator (36; 38) in oder an der Pulverförderleitung (10), der von der in einem Resonanzvolumen vorhandenen Pulvermenge abhängige Änderungen der Dielektrizitätskonstante und/oder der Mikrowellenabsorption in der Förderleitung als eine Verschiebung der Resonanzfrequenz bzw. eine Änderung der Mikrowellenamplitude im Mikrowellenresonator (36; 38) erfaßt, und aus der Änderung der Dielektrizitätskonstante und/oder der Mikrowellenabsorption die Pulverdichte in dem Resonanzvolumen ableitet.
- Beschichtungsanlage nach Anspruch 11, dadurch gekennzeichnet, daß der Mikrowellenresonator (36; 38) eine Spule (44) aufweist, die außen auf die Pulverförderleitung (10) aufgebracht ist.
- Beschichtungsanlage nach einem der Ansprüche 5 bis 12, dadurch gekennzeichnet, daß die Meßeinrichtung einen Formluftsensor (142) zum Erfassen eines dem oder jedem Beschichtungsgerät (66) zugeführten Formluft-Volumenstrom aufweist, und daß die Stelleinrichtung eine Proportionalventileinheit (130) zum Einstellen des Formluft-Volumenstroms aufweist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19738144A DE19738144C2 (de) | 1997-09-01 | 1997-09-01 | Verfahren zum Steuern eines elektrostatischen Beschichtungsgerätes und elektrostatische Beschichtungsanlage |
DE19738144 | 1997-09-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0899019A1 true EP0899019A1 (de) | 1999-03-03 |
EP0899019B1 EP0899019B1 (de) | 2004-02-11 |
Family
ID=7840844
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98113511A Revoked EP0899019B1 (de) | 1997-09-01 | 1998-07-20 | Verfahren zum werkstückabhängigen Steuern eines elektrostatischen Beschichtungsgerätes und elektrostatische Beschichtungsanlage |
Country Status (4)
Country | Link |
---|---|
US (1) | US6051280A (de) |
EP (1) | EP0899019B1 (de) |
JP (1) | JPH11128782A (de) |
DE (2) | DE19738144C2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19753660C2 (de) * | 1997-12-03 | 2001-01-25 | Wagner Internat Ag Altstaetten | Verfahren und Einrichtung zum Aufbringen eines Trennmittels auf eine Spritzgußform |
DE19915390C2 (de) * | 1999-04-06 | 2003-04-03 | Wolfgang Puffe | Verfahren und Vorrichtung zum Aufsprühen von erschmolzenem Heißschmelzkleber oder verflüssigtem thermoplastischem Kunststoff |
US7005159B2 (en) * | 2001-04-02 | 2006-02-28 | Abb Inc. | Method of operating powder paint applicator |
US6589342B2 (en) | 2001-04-02 | 2003-07-08 | Abb Automation Inc. | Powder paint color changer |
DE10138167A1 (de) * | 2001-08-03 | 2003-02-27 | Saremo Objektfinish Ag | Vorrichtung und Verfahren für ein gezieltes Auftragen von Beschichtungsmaterial |
JP4106948B2 (ja) * | 2002-03-29 | 2008-06-25 | 東京エレクトロン株式会社 | 被処理体の跳上り検出装置、被処理体の跳上り検出方法、プラズマ処理装置及びプラズマ処理方法 |
DE10234247B4 (de) * | 2002-07-27 | 2006-03-09 | Eisenmann Lacktechnik Gmbh & Co. Kg | Einrichtung zur Messung eines Betriebsparameters einer Beschichtungsanlage für Gegenstände |
DE102006054786A1 (de) * | 2006-11-21 | 2008-05-29 | Dürr Systems GmbH | Betriebsverfahren für einen Zerstäuber und entsprechende Beschichtungseinrichtung |
DE102011004024A1 (de) * | 2011-02-14 | 2012-08-16 | Illinois Tool Works Inc. | Steuervorrichtung für eine Pulversprühbeschichtungseinrichtung |
JP7048937B2 (ja) * | 2017-12-26 | 2022-04-06 | 旭サナック株式会社 | 伸線加工線材への粉末潤滑剤塗布装置 |
DE102021101026B4 (de) | 2021-01-19 | 2022-11-03 | Dürr Systems Ag | Beschichtungseinrichtung mit einer Übertragungseinrichtung zur drahtlosen Übertragung von Energie und/oder Daten |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2078402A (en) * | 1980-05-29 | 1982-01-06 | Ransburg Corp | Position adjustment system |
US4324812A (en) * | 1980-05-29 | 1982-04-13 | Ransburg Corporation | Method for controlling the flow of coating material |
US4357900A (en) * | 1980-04-12 | 1982-11-09 | Gema Ag Apparatebau | Apparatus for the automatic coating of articles |
EP0529851A1 (de) * | 1991-08-09 | 1993-03-03 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Sprühbeschichtungsverfahren |
WO1994022589A1 (en) * | 1993-04-07 | 1994-10-13 | Nordson Corporation | Method and apparatus for coating three dimensional articles |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1568638A (de) * | 1967-06-13 | 1969-05-23 | ||
JPS59109268A (ja) * | 1982-12-15 | 1984-06-23 | Asahi Okuma Ind Co Ltd | 静電塗装機 |
DE3822835A1 (de) * | 1988-07-06 | 1990-03-08 | Josef Schucker | Verfahren und anordnung zum lackieren von werkstueckoberflaechen |
DE4232026C2 (de) * | 1992-09-24 | 1996-10-24 | Wagner Int | Elektrostatische Beschichtungspistole und Verfahren zum Erzeugen einer Hochspannung |
DE4406046C2 (de) * | 1994-02-24 | 1997-11-20 | Wagner Int | Einrichtung und Verfahren zum Messen eines Pulver-Massestromes |
DE19502390C2 (de) * | 1995-01-26 | 1997-09-25 | S & S Metallsuchgeraete & Recy | Verfahren und Vorrichtung zum Auftragen von Schmierstoffen auf Bandmaterial |
DE19650112C1 (de) * | 1996-12-03 | 1998-05-20 | Wagner Int | Einrichtung und Verfahren zum Messen eines Pulver-Massestromes |
DE19738141C2 (de) * | 1997-09-01 | 2003-06-05 | Wagner Int | Steuersystem einer Beschichtungsanlage mit einer LON-Busstruktur |
-
1997
- 1997-09-01 DE DE19738144A patent/DE19738144C2/de not_active Revoked
-
1998
- 1998-07-20 DE DE59810735T patent/DE59810735D1/de not_active Expired - Fee Related
- 1998-07-20 EP EP98113511A patent/EP0899019B1/de not_active Revoked
- 1998-08-31 JP JP10244942A patent/JPH11128782A/ja active Pending
- 1998-09-01 US US09/144,747 patent/US6051280A/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4357900A (en) * | 1980-04-12 | 1982-11-09 | Gema Ag Apparatebau | Apparatus for the automatic coating of articles |
GB2078402A (en) * | 1980-05-29 | 1982-01-06 | Ransburg Corp | Position adjustment system |
US4324812A (en) * | 1980-05-29 | 1982-04-13 | Ransburg Corporation | Method for controlling the flow of coating material |
EP0529851A1 (de) * | 1991-08-09 | 1993-03-03 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Sprühbeschichtungsverfahren |
WO1994022589A1 (en) * | 1993-04-07 | 1994-10-13 | Nordson Corporation | Method and apparatus for coating three dimensional articles |
Also Published As
Publication number | Publication date |
---|---|
US6051280A (en) | 2000-04-18 |
DE59810735D1 (de) | 2004-03-18 |
EP0899019B1 (de) | 2004-02-11 |
JPH11128782A (ja) | 1999-05-18 |
DE19738144A1 (de) | 1999-03-04 |
DE19738144C2 (de) | 1999-12-09 |
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