EP1286784B1 - Verfahren zur herstellung und anwendung einer mehrkomponentenfarbe mittels zerstäubung - Google Patents

Verfahren zur herstellung und anwendung einer mehrkomponentenfarbe mittels zerstäubung Download PDF

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Publication number
EP1286784B1
EP1286784B1 EP01945384A EP01945384A EP1286784B1 EP 1286784 B1 EP1286784 B1 EP 1286784B1 EP 01945384 A EP01945384 A EP 01945384A EP 01945384 A EP01945384 A EP 01945384A EP 1286784 B1 EP1286784 B1 EP 1286784B1
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EP
European Patent Office
Prior art keywords
main line
line
curing agent
flow rate
installation according
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
EP01945384A
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English (en)
French (fr)
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EP1286784A1 (de
Inventor
Dominique Cebola
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Eisenmann Anlagenbau GmbH and Co KG
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Eisenmann Anlagenbau GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/14—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet
    • B05B12/1418—Arrangements for controlling delivery; Arrangements for controlling the spray area for supplying a selected one of a plurality of liquids or other fluent materials or several in selected proportions to a spray apparatus, e.g. to a single spray outlet for supplying several liquids or other fluent materials in selected proportions to a single spray outlet

Definitions

  • the subject of the present invention is a process for producing and applying a multi-component paint by spraying, as well as an installation for carrying out this process.
  • a multi-component paint is constituted by a base, generally tinted, hereinafter referred to as base color, which must be mixed in a precise ratio with at least one hardener before being sprayed by any paint-splashing device.
  • the document US 5,887,975 discloses a mixing system and method for mixing one or more liquid sub-components of colors.
  • the system includes subcomponent input lines connected to a reducing tubing.
  • a solenoid valve "on / off" in each line is arranged to allow or prohibit the fluid from entering the reducing tubing.
  • the reducing tubing includes the multiple inlet passages that converge to form a single outlet passage.
  • a flow meter is in communication with the outlet passage for measuring the flow of subcomponent fluid through the tubing.
  • a control system makes the solenoid valves open and close to meter subcomponent fluids passing from the various flow of output. From the reducing tubing, the outlet passage is connected with an integrator where the subcomponents are partially mixed.
  • a static mixer relates to the efficiency of the integrator to completely mix the fluids.
  • an installation is designed to make and apply paints of different colors. It is possible in such a case to provide a block of color change or hues upstream of the metering pump. It is then necessary to perform a complete cleaning, during a change of colors, of the entire line between the color change block and the sprayer. In order to lose as little product as possible during the color change phases, the pump set is located as close as possible to the sprayer in an area classified as explosive according to the standards in force, which requires the use of approved equipment. It is also possible to provide a pump unit for each shade. The essential disadvantage of this type of device lies in the number of equipment used as well as in the unit cost of each of them. In effect, as indicated above, it is necessary to multiply the number of pump units and drives associated with them.
  • multi-component paints are increasingly used as they allow to meet environmental protection standards that require reducing solvent discharges and also reduce the energy required for cooking. Indeed, multicomponent paints comprise substantially less solvent than conventional products.
  • installations for producing and applying multi-component paint are distinct from the installations intended for the production and application of conventional solvent-based paints, these installations generally comprising a color change block, a device for flow control such as a pressure regulator or a positive displacement pump for controlling the flow rate and a flow meter.
  • a device for flow control such as a pressure regulator or a positive displacement pump for controlling the flow rate and a flow meter.
  • the conventional plants last type cited can not be reused immediately for realization and spray application of multi-component paints.
  • the object of the invention is to provide a method and an installation for the production and application by spraying of multicomponent paints, which are of a reasonable cost, which minimize the time of color change and the quantities of rinse aid necessary to clean the installation during a change of colors, and which allow the passage of interesting economic conditions of an installation intended for the realization of a conventional monocomponent paint to an installation intended for the realization and the application of a multi-component paint.
  • the method for producing and applying a multi-component paint spray in an installation according to one of claims 1 to 10 is characterized in that a flow meter permanently measures a flow rate of the basic dye mixture. / hardeners and drives a pump motor unit via a frequency converter, so that the hardener flow sent by the pump in a main line respects a predetermined volumetric ratio hue base / hardeners.
  • An installation for carrying out this method comprising a main line at one end of which opens, via a valve, at least one supply duct of a base color at the other end of which is mounted a sprayer, this line comprising a flow control device imposing the flow rate of the product dispensed by spraying, the main line opens at least one secondary line at the end of which opens, via a valve, at least one feed duct of a hardener, this line being equipped with a motorcycle pump unit for transferring the hardener in the main line, the latter comprising, downstream from the point of junction with the secondary line and upstream of the pressure regulator, a flowmeter which continuously measures the flow rate of the base dye / hardener mixture, characterized in that the flowmeter controls the pump unit via a variator of frequency, so that the hardener flow sent by the pump in the main line allows to respect a predetermined volumetric ratio base hue / harden ur.
  • the installation according to the invention is very close to a conventional installation, since it simply comprises the addition of at least one hardener line comprising a pump unit driven by a frequency converter, which joins the baseline upstream. the flowmeter. It should be noted that unlike the installations which have been described above and which constitute the state of the art, it is not necessary to provide in this case a dosing pump on the main line. and a metering pump on the secondary line, with a regulation of these two pumps, since in this case, the pump which is arranged on the secondary line is controlled from the total mixing rate which is imposed by the pressure regulator.
  • the secondary line is equipped, at its upstream end, with a power supply unit in which open, through valves, several supply ducts base shades.
  • the secondary line is equipped, at its upstream end, with a power supply into which open, through valves, several hardener supply ducts.
  • the flowmeter mounted on the main line is a gearwheel flowmeter. This geared-wheel flowmeter acts in the manner of an encoder on the motor control means of the pump.
  • a static mixer is arranged on the main line downstream of the flow meter.
  • This static mixer may, for example, be in the form of a longitudinal propeller driven in rotation by the product flow allowing an intimate mixing of the components.
  • two interlocking valves are arranged on the main and secondary lines immediately upstream of their point of convergence.
  • a source of rinsing product feeds pipes opening through valves at the upstream ends respectively of the main line and the secondary line. It is thus possible to clean the main and secondary lines to the outlet of the cleaning product by the sprayer. After cleaning, the product should be evacuated rinsing remaining.
  • the installation comprises a source of compressed air feeding ducts opening through valves at the upstream ends respectively of the main line and the secondary line.
  • the source of rinse aid also feeds two pipes opening into two three-way valves mounted on the main line and on the main line.
  • the secondary line upstream of the interlocking valves, and allowing the passage of rinsing product alternating with respectively the base color and the hardener. This makes it possible to rinse only the pipes comprising mixed product. This is made possible by the use of the three-way valves to choose between the product and the rinsing product, disposed a few tens of centimeters from the respective interlock valves mounted on the main line and the secondary line.
  • this installation includes a controller for controlling the various functions of the installation and a control panel forming an interface with the operator and making it possible in particular to select the colors, to adjust the flow rate of the product to be sprayed, to adjust, if is not memorized, a basic hue / hardener volume ratio, and start a hue change sequence whose different phases are managed by the controller.
  • the installation shown in the drawing comprises a color change block 2 from which extends a main line constituted by a conduit 3.
  • a color change block open a number of conduits 4 via valves 5
  • two ducts 4 are shown, but of course the number of ducts 4 capable of bringing different basic colors can be multiplied.
  • line 3 from the color change block 2 is disposed a three-way valve 6, then a 2-way interlock valve 7. Downstream of the valve 7 is mounted a flowmeter 8 with toothed wheels, then a static mixer 9, for example in the form of a longitudinal helix, a pressure regulator 10 on the supply of which is mounted a manometer 12, the pressure being controlled by the operator by actuating a display 13 or manually through a pressure gauge pressure reducer.
  • a sprayer 14 which, in the non-use position, can be placed in a rinsing box 15 connected to a product recovery receptacle.
  • a secondary line 16 In the main line 3 opens a secondary line 16, immediately upstream of the flow meter 8, via a latching valve 17.
  • a block 18 for supplying hardener, in which open, through valves 19, conduits 20 may bring different types of hardeners.
  • a hardener presence sensor 22 At the output of the hardener supply block 18 are mounted a hardener presence sensor 22, then a pump 23 actuated by a motor 24 equipped with a frequency converter 26 for adjusting the speed of rotation of the pump. Downstream of the pump 23 is disposed on the secondary line a three-way valve 25.
  • the flowmeter is connected to the control 26 of the motor to vary, through the frequency converter, the speed of rotation of the pump, to adapt it to the volume of mixture dye-hardener to achieve.
  • the display 13 is connected to a PLC 27 acting in particular on the control of the motor 26.
  • the installation also comprises a source of rinsing product such as a solvent 28 connected by conduits 29, 30 respectively to the color change block 2 and to the hardener feed unit 18. These two ducts are respectively equipped with valves 32 and 34.
  • the rinsing product source 28 is also connected respectively by conduits 35 and 36 to the main line 3 and to the secondary line 16 in which it opens at the three-way valves 6 and 25.
  • the installation finally comprises a source 37 for supplying compressed air supplying, via conduits 38 and 39, respectively the color change block 32 and the block supplying hardener 18, the conduit 38 opening into the color change block 2 via a valve 40 and the conduit 39 opening into the block 18 via a three-way valve 42, joining at this level the supply duct 30 of the same block solvent.
  • a base shade feeding the color change block 2 through an open valve 5 flows in the main line 3 through the valve 6, the valve 7, to the flow meter 8.
  • a hardener feeds the block 18 through an open valve 19, this hardener being driven by the pump 23 after detection by the sensor 22.
  • the three-way valve 25 ensures the passage of the hardener as well as the shut-off valve 17 which is open .
  • the hardener then joins the main line 3, to form with the base color a mixture whose flow rate is measured by the flow meter 8.
  • the operator having set the desired flow rate at the display 13 or pressure gauge 12, which controls the pressure regulator, the flowmeter supplies to the pump unit 23, 24, via the motor control which acts on a frequency converter, the speed of rotation of the pump to adapt the hardener flow to the amount of it desired in the mixture.
  • the rate of hardener delivered by the pump 23 results from the predetermined ratio between base color and hardener.
  • the product mixture passes through the static mixer, and the pressure regulator 10 before being dispensed by the sprayer 14. If, during operation, the operator changes the overall product flow, the flow meter will provide the information to the engine control which will accordingly change the speed of rotation of the pump 23.
  • the sprayer may be a manual or automatic sprayer mounted at the end of the arm of a robot.
  • the lines 3 and 16 are dried with compressed air from the source of compressed air 37, the air being brought to the level of the color change blocks 2 and feeding hardener 18 through the conduits 38, 39, the valves 40 and 34 being open, and the three-way valve 42 being switched to allow the passage of air With this assembly, it is possible to rinse only the basic circuit in case there is no change in hardener.
  • the three-way valves 6 and 25 are tilted in the position in which they allow either the passage of the base color and a hardener, but rinsing product.
  • the controller 27 controls the various functions of the installation and the display 13 or control panel forming an interface with the operator makes it possible in particular to select the colors, to adjust the flow rate of the product sprayed, to adjust, if is not memorized, a volume ratio of basic tint / hardener and start a sequence of change of colors whose different phases including cleaning are managed automatically.
  • the PLC also reads the value of the total flow rate of the mixture circulating in the installation.
  • the invention provides a great improvement to the existing technique by providing a method and an installation for producing and spraying a two-component paint consisting of a base shade and a hardener, allowing the implementation of a conventional installation on which can be grafted a hardener feed line.
  • the main line could supply a second sprayer itself equipped with its pressure regulator, or the installation could include several secondary lines of hardeners.

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  • Nozzles (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Spray Control Apparatus (AREA)

Claims (11)

  1. Einrichtung zum Herstellen und Auftragen durch Zerstäubung einer aus einer Grundfarbe und mindestens einem Härter gebildeten Mehrkomponentenfarbe, die eine Hauptleitung (3) aufweist, an deren eines Ende über ein Ventil (5) mindestens eine Speiseleitung (4) für Grundfarbe angeschlossen ist und an deren anderem Ende ein Zerstäuber (14) angeordnet ist, wobei diese Leitung (3) einen Durchsatzregler (10) aufweist, der den Durchsatz des durch Zerstäubung verteilten Produkts vorgibt, wobei an die Hauptleitung (3) mindestens eine Sekundärleitung (16) angeschlossen ist, an deren Ende über ein Ventil (19) mindestens eine Speiseleitung (20) für Härter angeschlossen ist, wobei diese Leitung (16) mit einer Motorpumpengruppe (23, 24) versehen ist, die dazu bestimmt ist, den Härter in die Hauptleitung (3) zu fördern, wobei letztere stromab des Verzweigungspunkts mit der Sekundärleitung stromauf des Durchsatzreglers (10) einen Durchsatzmesser (8) aufweist, der ständig den Durchsatz des Grundfarbe/Härter-Gemisches misst, dadurch gekennzeichnet, dass der Durchsatzmesser (8) die Motorpumpengruppe mittels eines Frequenzstellers (26) ansteuert, so dass der Durchsatz an Härter, der durch die Pumpe (23) in die Hauptleitung (3) gefördert wird, es erlaubt, ein vorbestimmtes Volumenverhältnis zwischen Grundfarbe und Härter einzuhalten.
  2. Einrichtung gemäß dem Anspruch 1, dadurch gekennzeichnet, dass die Hauptleitung (3) an ihrem stromaufwärtigen Ende mit einem Farbwechselblock (2) versehen ist, an welchen über Ventile (5) mehrere Speiseleitungen (4) für Grundfarben angeschlossen sind.
  3. Einrichtung gemäß einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die Sekundärleitung (16) an ihrem stromaufwärtigen Ende mit einem Versorgungsblock (18) versehen ist, an welchen über Ventile (19) mehrere Härter-Speiseleitungen (20) angeschlossen sind.
  4. Einrichtung gemäß einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der in der Hauptleitung (3) angebrachte Durchsatzmesser (8) ein Zahnraddurchsatzmesser ist.
  5. Einrichtung gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass ein statischer Mischer (9) in der Hauptleitung stromab des Durchsatzmessers (8) angeordnet ist.
  6. Einrichtung gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass zwei Schaltventile (7, (17) in der Hauptleitung (3) und der Sekundärleitung (16) direkt stromauf des Vereinigungsspunkts der letzteren angeordnet sind.
  7. Einrichtung gemäß einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass sie eine Quelle (28) für Spülmittel, wie ein Lösungsmittel, aufweist, welche Leitungen (29, 30) versorgt, die über Ventile (32, 34) an den entsprechenden stromauf gelegenen Enden der Hauptleitung (3) und der Sekundärleitung (16) angeschlossen sind.
  8. Einrichtung gemäß den Ansprüchen 6 und 7, dadurch gekennzeichnet, dass die Quelle (28) für Spülmittel unter anderem zwei Leitungen (35, 36) versorgt, die an zwei Dreiwegventile (6, 25) angeschlossen sind, die in der Hauptleitung (3) und in der Sekundärleitung (16) stromauf der Schaltventile (7, 17) angeordnet sind, und welche den Durchgang des Lösungsmittels im Wechsel mit der Grundfarbe bzw. dem Härter erlauben.
  9. Einrichtung gemäß einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, sie eine Druckluftquelle (37) aufweist, welche Leitungen (38, 39) versorgt, die über Ventile (40, 34) an den entsprechenden stromauf gelegenen Ende der Hauptleitung (3) und der Sekundärleitung (16) angeschlossen sind.
  10. Einrichtung gemäß der Gesamtheit der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sie einen Automaten (27) zur Steuerung der verschiedenen Funktionen der Einrichtung und eine Steuerkonsole (13) aufweist, die eine Schnittstelle mit dem Bediener darstellt und insbesondere erlaubt, die Farben auszuwählen, den Durchsatz des zu zerstäubenden Produkts einzustellen, ein Volumenverhältnis Grundfarbe/Härter einzustellen, falls dies nicht gespeichert ist, und eine Farbwechselfolge zu starten, deren verschiedene Phasen von dem Automaten verwaltet werden.
  11. Verfahren zum Herstellen und Auftragen durch Zerstäubung einer Mehrkomponentenfarbe in einer Einrichtung gemäß einem der vorherigen Ansprüche, dadurch gekennzeichnet, dass der Durchsatzmesser (8) ständig den Durchsatz des Grundfarbe/Härter-Gemisches misst und die Motorpumpengruppe (23, 24) mittels eines Frequenzstellers (26) steuert, damit der durch die Pumpe (23) in die Hauptleitung (3) geförderte Härterdurchsatz das vorbestimmte Volumenverhältnis Grundfarbe/Härter einhält.
EP01945384A 2000-06-08 2001-06-08 Verfahren zur herstellung und anwendung einer mehrkomponentenfarbe mittels zerstäubung Expired - Lifetime EP1286784B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0007377A FR2809970B1 (fr) 2000-06-08 2000-06-08 Procede de realisation et d'application par pulverisation d'une peinture multi-composants
FR0007377 2000-06-08
PCT/FR2001/001784 WO2001094025A1 (fr) 2000-06-08 2001-06-08 Procede de realisation et d'application par pulverisation d'une peinture multi-composants

Publications (2)

Publication Number Publication Date
EP1286784A1 EP1286784A1 (de) 2003-03-05
EP1286784B1 true EP1286784B1 (de) 2008-12-03

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EP01945384A Expired - Lifetime EP1286784B1 (de) 2000-06-08 2001-06-08 Verfahren zur herstellung und anwendung einer mehrkomponentenfarbe mittels zerstäubung

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Country Link
US (1) US20030157262A1 (de)
EP (1) EP1286784B1 (de)
JP (1) JP2003534913A (de)
KR (1) KR20030024687A (de)
AT (1) ATE416037T1 (de)
AU (1) AU2001267617A1 (de)
BR (1) BR0111471A (de)
CA (1) CA2411682A1 (de)
DE (1) DE60136804D1 (de)
FR (1) FR2809970B1 (de)
WO (1) WO2001094025A1 (de)

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DE102006048037B4 (de) * 2006-10-09 2010-07-08 Poma Sondermaschinen- Und Vorrichtungsbau Gmbh Fluidversorgungsvorrichtung für eine Spritzanlage
DE102009056124B4 (de) * 2009-05-04 2021-12-16 Oechsler Ag Tiefgezogenes Kunststoff-Umformteil
US8880362B2 (en) * 2011-02-03 2014-11-04 Epic Solutions, Inc. System and method for monitoring paint flow in pavement marking applications
US10876261B2 (en) 2017-02-11 2020-12-29 Epic Solutions, Inc. Thermoplastic paint marking system and method
CN113617566B (zh) * 2020-05-06 2022-11-04 上海发那科机器人有限公司 双固化剂使用的混合模块及其工作方法
US11828029B2 (en) 2020-09-23 2023-11-28 Epic Solutions, Inc. System for monitoring application of roadway marking tape

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Also Published As

Publication number Publication date
FR2809970B1 (fr) 2003-09-05
FR2809970A1 (fr) 2001-12-14
BR0111471A (pt) 2003-03-25
EP1286784A1 (de) 2003-03-05
JP2003534913A (ja) 2003-11-25
ATE416037T1 (de) 2008-12-15
WO2001094025A1 (fr) 2001-12-13
CA2411682A1 (fr) 2001-12-13
KR20030024687A (ko) 2003-03-26
DE60136804D1 (de) 2009-01-15
AU2001267617A1 (en) 2001-12-17
US20030157262A1 (en) 2003-08-21

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