EP1321731A1 - Transmetteur d'énergie faisant partie d'une installation de revêtement et/ou de séchage, notamment pour un revêtement de peinture - Google Patents

Transmetteur d'énergie faisant partie d'une installation de revêtement et/ou de séchage, notamment pour un revêtement de peinture Download PDF

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Publication number
EP1321731A1
EP1321731A1 EP01130788A EP01130788A EP1321731A1 EP 1321731 A1 EP1321731 A1 EP 1321731A1 EP 01130788 A EP01130788 A EP 01130788A EP 01130788 A EP01130788 A EP 01130788A EP 1321731 A1 EP1321731 A1 EP 1321731A1
Authority
EP
European Patent Office
Prior art keywords
coating
transmitter
energy transmitter
coating material
drying system
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
Application number
EP01130788A
Other languages
German (de)
English (en)
Other versions
EP1321731B1 (fr
Inventor
Helmut Reichelt
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.)
Moletherm Holding AG
Original Assignee
Moletherm Holding 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
Priority to EP01130788A priority Critical patent/EP1321731B1/fr
Application filed by Moletherm Holding AG filed Critical Moletherm Holding AG
Priority to PT01130788T priority patent/PT1321731E/pt
Priority to DE50110461T priority patent/DE50110461D1/de
Priority to DK01130788T priority patent/DK1321731T3/da
Priority to ES01130788T priority patent/ES2267660T3/es
Priority to JP2003556742A priority patent/JP2005512810A/ja
Priority to CNA028259262A priority patent/CN1608192A/zh
Priority to PCT/EP2002/013551 priority patent/WO2003056262A1/fr
Priority to EA200400859A priority patent/EA007500B1/ru
Priority to CA002471344A priority patent/CA2471344A1/fr
Priority to AU2002352202A priority patent/AU2002352202A1/en
Priority to US10/498,890 priority patent/US20050069310A1/en
Publication of EP1321731A1 publication Critical patent/EP1321731A1/fr
Application granted granted Critical
Publication of EP1321731B1 publication Critical patent/EP1321731B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B3/00—Drying solid materials or objects by processes involving the application of heat
    • F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
    • F26B3/30—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun from infrared-emitting elements

Definitions

  • the invention relates to an energy transmitter as part of a coating and / or drying plant, in particular for a paint coating the preamble of claim 1.
  • Different coating materials are used in conventional painting processes partly in several layers, such as powder coatings, fillers, basecoats, Clear varnishes, etc. are used, which at reaction temperatures of about 80 ° to about 200 ° must be melted or dried.
  • Coating systems that are used for standard painting of many components, such as housings, bodies, metal structural parts, etc. designed conventional convection drying is carried out with hot air, which require enormous energy costs and long drying times.
  • the hot air heated by heating elements is used here as an energy transmitter. With continuous transport of the components through drying tunnels these have a large length, so that they are correspondingly complex Constructions in large building complexes are required.
  • these Coating and painting systems with conventional conventional circulating air drying hot air also connects multi-stage processes known with other energy transmitters with which energy in the paint coating applied for the purpose of melting and / or drying becomes:
  • a painting system in which a two-stage for drying the paint Drying process is used (DE 195 03 775 C1), in which first drying stage can be used as an energy transmitter infrared radiator.
  • first drying stage can be used as an energy transmitter infrared radiator.
  • a problem with these infrared emitters is that the radiation intensity and thus the effective energy load in the coating material decreases with the square of the distance. So here are the The shape of the infrared emitter precisely matches the object to be dried adapted and by means of controlled actuators in the manner of robots can be brought to the surface at a short distance, so that too Increasing effectiveness leaves a small gap. This represents one considerable expenditure on equipment.
  • a painting system is known (DE 38 14871 A1), in which only an infrared drying is used, which with a radiation frequency in Near-infrared (NIR) works at 1.0 to 4.0 ⁇ m.
  • NIR Near-infrared
  • the aforementioned ones occur Problems for efficient energy supply.
  • hidden areas such as undercut Area where the IR radiation does not hit directly, only slightly warmed and be cured.
  • the object of the invention is therefore an energy transmitter as a component a coating and / or drying system, in particular for a paint coating to create with the essential process energy savings possible are.
  • the energy transmitter comprises at least two transmitter surface elements as antenna elements.
  • Each of the transmitter sheet elements has a glass carrier plate that has a radiation layer on a glass back surface carries and their opposite free glass front surface a position for an object to be dried or a surface of a component is directed with applied coating material.
  • a surface reflector arranged from metal material.
  • the respective radiation layer is designed to emit electromagnetic radiation in a frequency band, the frequency band having to cover at least characteristic natural frequencies in the infrared of an object or coating material to be dried. Such molecular natural frequencies are in particular in the ultra-infrared range from approx. 10 -9 to 10 -12 Hertz.
  • the radiation layer can be excited by means of a control device to emit the at least one frequency band, so that natural frequencies of the object to be dried or the coating material can be excited in resonance.
  • the arrangement looks for the appropriate corresponding resonance frequency to a natural frequency from the emitted frequency band for targeted energy application with high energy density in accordance with conventional resonance processes.
  • coating and / or drying systems can thus be used according to the invention can be built with much less energy and time can be operated.
  • transmitter surface elements In a specific arrangement of the transmitter surface elements according to claim 2 these are rectangular or square with flat glass surfaces trained and overall in at least one plane, preferably in each other arranged opposite levels. This makes it easier constructive structure with advantageous large-area total radiation areas for an effective energy supply. Experiments have shown that a particularly effective radiation with transmitter surface elements Edge lengths of approximately 20 cm to 80 cm, preferably of approximately 40 cm, are possible.
  • the Levels of the transmitter surface elements are inside walls of a tunnel and on the side walls and / or on the ceiling wall and / or on the bottom wall arranged.
  • Components for paint drying can be transported automatically.
  • a radiation layer is claimed, which are highly suitable for the emission of the specified frequency bands is.
  • Claim 6 is to further concretizations and advantageous Refinements directed.
  • the transmitter surface elements each have opposite Side areas of the equipped with the radiation layer Glass back surfaces of electrical conductors, with all transmitter surface elements connected in parallel with a harmonic generator of the control device are.
  • the harmonic generator comprises an electrical component, which, when controlled with a control oscillation, has a steep current rise rate has and thus to generate a high harmonic content suitable is.
  • These conductors are preferably called copper foil tapes formed, a coupling to the radiation layer capacitive or done inductively.
  • a triac or double MOSFET is suitable or, if appropriate an ultra-fast switch.
  • the radiation layer acts with such an excitation in the manner of a frequency transformer, with relatively smaller excitation frequencies to the high radiation frequencies with the specified Leading the infrared frequency band.
  • the excitation frequency is the Transmitter surface elements a wide coverage of natural frequency ranges possible if this is necessary for specific applications. This can apply, for example, if material mixtures are used as coating material are used, which are relatively far apart, for the invention Have suitable natural frequencies for resonance purposes.
  • the surface reflector should consist of at least one load-bearing one Metal sheet be formed, on which the transmitter surface elements via insulation elements are held.
  • the distance between the surface reflector and The transmitter surface elements are approx. 1 cm for an optimal effect up to 10 cm preferably approx. at 4 cm. This distance is easy by one corresponding design of the insulation elements can be specified.
  • Such Arrangement results in a simple and inexpensive construction.
  • the area reflector itself can turn without the need for electrical installation be mounted on suitable frames or walls.
  • the radiation layer is in such an arrangement in the intermediate gap between the Transmitter surface elements and the surface reflector and is therefore advantageous even in rough operation against mechanical and possibly chemical influences protected.
  • the uncoated facing outwards Glass surface is largely insensitive and can in particular be simple kept clean, what an effective and interference-free radiation is essential.
  • the uncoated glass surfaces are also common from the in paint shops during melting and drying Chemicals such as solvent vapors etc. are not attacked. Long, trouble-free downtimes with little maintenance thus guaranteed.
  • claim 10 is also the structure of an automated paint coating system claimed, being the first in a first facility Station the coating material in liquid or powder or granular Shape is applied.
  • a second device comprises the above in a second station described energy transmitter, whereby the coating-free material, preferably a powder coating material, meltable and / or dryable is. This means that very little energy is required and treatment times are short flawless, good-holding coatings achieved.
  • To be coated Components such as metal structural parts, bodies or metal housings can in preferably tunnel-like systems, continuously or if necessary intermittently by means of transport devices such. B. with conveyor belts are transported automatically.
  • Powder coatings with natural frequencies in the range of the wave numbers from approximately 1000 to 1800 cm -1 which are applied according to claim 13 to components made of metal material, have proven to be particularly suitable.
  • This coating and drying system 2 has a first device for applying a z. B. powder coating as a coating material on a surface of a component to be coated 3, z. B. a motor vehicle body.
  • the powder coating has natural frequencies in the range of the wave numbers of approx. 1000 to 1,800 cm -1 and is applied electrostatically to component 3 in the first device.
  • the component 3 together with the electrostatically adhering powder coating is conveyed continuously or intermittently through the first device (not shown here) by means of a transport device 4 and, after passing through this first station, arrives at a second station 5, shown schematically and in perspective in FIG is arranged downstream and comprises a tunnel 7, through which the component 3 is conveyed continuously or intermittently in the desired manner by means of the transport device 4.
  • transmitter surface elements are on the inner walls of tunnel 7, d. H. on the side walls 8 and 9 on the ceiling walls a plurality of transmitter surface elements forming the energy transmitter 1 10 arranged, which are preferably essentially together adjoin and z. B. form a narrow gap between them, in the as shown schematically in Fig. 2, an elastically insulating Sealing tape 21 can be used.
  • These transmitter surface elements are exemplary here formed approximately rectangular and each have a glass support plate 11, as shown in particular in FIGS. 2 and 3, the enlarged show schematic detailed representations, can be seen.
  • This glass support plate 11 carries on a glass rear surface 12 schematically in the representation of FIG.
  • This Harmonic generator of the control device 16 comprises an electrical one Block that has a steep slope when triggered with a drive vibration Has current rate of increase corresponding to a steep rising edge and is therefore suitable for generating a high harmonic content. This allows the transmitter surface elements 10 with a frequency in Megahertz range or be excited with a frequency in the gigahertz range.
  • a free glass front surface 17 opposite the glass rear surface 12 Transmitter surface elements 10 are directed towards the motor vehicle body 3.
  • the inner walls 18 of the tunnel 7 here form a surface reflector 20 and are formed from a load-bearing metal sheet, on which is shown in FIG Isolation elements 19 held the transmitter surface elements 10 are.
  • the distance between the surface reflector 20 and the transmitter surface elements 10 is z. B. approximately between 1 cm to 10 cm.
  • the transport device 4 As soon as the component 3 with the electrostatically adhering powder coating the transport device 4 is transported through the tunnel 7 is by the respective radiation layer 13 on the transmitter surface elements 10 a emitted electromagnetic radiation in the infrared, the frequency band of which characteristic natural frequencies of the powder coating covered, so that this is melted onto component 3 and dried.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
  • Drying Of Solid Materials (AREA)
EP01130788A 2001-12-22 2001-12-22 Transmetteur d'énergie faisant partie d'une installation de revêtement et/ou de séchage, notamment pour un revêtement de peinture Expired - Lifetime EP1321731B1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
PT01130788T PT1321731E (pt) 2001-12-22 2001-12-22 Transmissor de energia fazendo parte de uma instalação de revestimento e/ou de secagem, em especial para um revestimento do género de uma pintura
DE50110461T DE50110461D1 (de) 2001-12-22 2001-12-22 Energietransmitter als Bestandteil einer Beschichtungs- und/oder Trockenanlage, insbesondere für eine Lackbeschichtung
DK01130788T DK1321731T3 (da) 2001-12-22 2001-12-22 Energitransmitter som bestanddel af et coatings- og/eller törringsanlæg, især til en lakcoating
ES01130788T ES2267660T3 (es) 2001-12-22 2001-12-22 Transmisor de energia como parte constituyente de una instalacion de revestimiento y/o secado, en particular para un revestimiento de esmalte.
EP01130788A EP1321731B1 (fr) 2001-12-22 2001-12-22 Transmetteur d'énergie faisant partie d'une installation de revêtement et/ou de séchage, notamment pour un revêtement de peinture
CNA028259262A CN1608192A (zh) 2001-12-22 2002-11-30 作为特别是用于涂漆的涂覆和/或干燥设备组成部分的能量发射器
JP2003556742A JP2005512810A (ja) 2001-12-22 2002-11-30 特にワニス塗装用の塗装設備および／または乾燥設備の構成要素を形成するエネルギートランスミッター
PCT/EP2002/013551 WO2003056262A1 (fr) 2001-12-22 2002-11-30 Transmetteur d'energie faisant partie d'une installation de revetement ou de sechage, notamment pour un revetement de peinture
EA200400859A EA007500B1 (ru) 2001-12-22 2002-11-30 Передатчик энергии для использования в агрегатах для нанесения покрытий и/или в сушильных установках, в частности, для нанесения лакового покрытия
CA002471344A CA2471344A1 (fr) 2001-12-22 2002-11-30 Transmetteur d'energie faisant partie d'une installation de revetement ou de sechage, notamment pour un revetement de peinture
AU2002352202A AU2002352202A1 (en) 2001-12-22 2002-11-30 Energy transmitter forming a component of a coating and/or drying installation, in particular for a paint coating
US10/498,890 US20050069310A1 (en) 2001-12-22 2002-11-30 Energy transmitter forming a component of a coating and/or drying installation, in particular for a paint coating

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01130788A EP1321731B1 (fr) 2001-12-22 2001-12-22 Transmetteur d'énergie faisant partie d'une installation de revêtement et/ou de séchage, notamment pour un revêtement de peinture

Publications (2)

Publication Number Publication Date
EP1321731A1 true EP1321731A1 (fr) 2003-06-25
EP1321731B1 EP1321731B1 (fr) 2006-07-12

Family

ID=8179690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01130788A Expired - Lifetime EP1321731B1 (fr) 2001-12-22 2001-12-22 Transmetteur d'énergie faisant partie d'une installation de revêtement et/ou de séchage, notamment pour un revêtement de peinture

Country Status (12)

Country Link
US (1) US20050069310A1 (fr)
EP (1) EP1321731B1 (fr)
JP (1) JP2005512810A (fr)
CN (1) CN1608192A (fr)
AU (1) AU2002352202A1 (fr)
CA (1) CA2471344A1 (fr)
DE (1) DE50110461D1 (fr)
DK (1) DK1321731T3 (fr)
EA (1) EA007500B1 (fr)
ES (1) ES2267660T3 (fr)
PT (1) PT1321731E (fr)
WO (1) WO2003056262A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020112670A1 (de) 2020-05-11 2021-11-11 Dürr Systems Ag Behandlungsmodul für einen Behandlungstunnel, Behandlungstunnel und Fertigungsanlage für ein Behandlungsmodul

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102341189B (zh) * 2009-03-06 2015-05-20 通用汽车环球科技运作有限责任公司 油漆固化的方法与装置
ITVI20120338A1 (it) * 2012-12-19 2014-06-20 Cartigliano Off Spa Metodo ed apparato per l'essicatura di pelli durante il processo di rifinizione
EP3476602B1 (fr) * 2017-10-30 2020-12-30 HP Scitex Ltd Séchage d'agent d'impression
AT523061B1 (de) * 2019-10-16 2021-05-15 Ess Holding Gmbh Verfahren zur Oberflächenbeschichtung von Werkstücken

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1082763A (fr) * 1953-05-22 1955-01-03 Panneau radiant infra-rouge électrique
GB983029A (en) * 1963-04-24 1965-02-10 David Goldman Drying apparatus employing radiant panel heaters
EP0095717A1 (fr) * 1982-05-27 1983-12-07 Ernest Picot Tunnel chauffant
DE3814871A1 (de) 1988-05-02 1989-11-16 Wu Ching Shun Verfahren zum einbrennen von fluessigen und pulverfoermigen lacken in einem brennofen
US5038361A (en) * 1988-11-09 1991-08-06 Wu Ching S Paint drying furnace
DE4403026A1 (de) * 1993-02-02 1994-08-04 Ngk Insulators Ltd Siliziumkarbid-Körper zum Ausstrahlen von Strahlung im fernen Infrarot sowie Trockner und Feuerungsvorrichtung mit diesem Körper
DE19503775C1 (de) 1995-02-04 1996-03-14 Burkamp En Und Anlagentechnik Verfahren zur Trocknung von Lacken mittels Infrarotstrahlern
DE19857940C1 (de) 1998-12-16 2000-07-27 Herberts Gmbh Verfahren zur Mehrschichtlackierung mit strahlenhärtbaren Beschichtungsmitteln

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3102007A (en) * 1960-05-25 1963-08-27 Goldman David Drying apparatus employing radiant panel heaters
RU2070773C1 (ru) * 1994-11-18 1996-12-20 Воронкова Зинаида Петровна Резистивный электронагреватель
US6297481B1 (en) * 1998-12-02 2001-10-02 Lawrence Gordon Infrared food warmer

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1082763A (fr) * 1953-05-22 1955-01-03 Panneau radiant infra-rouge électrique
GB983029A (en) * 1963-04-24 1965-02-10 David Goldman Drying apparatus employing radiant panel heaters
EP0095717A1 (fr) * 1982-05-27 1983-12-07 Ernest Picot Tunnel chauffant
DE3814871A1 (de) 1988-05-02 1989-11-16 Wu Ching Shun Verfahren zum einbrennen von fluessigen und pulverfoermigen lacken in einem brennofen
US5038361A (en) * 1988-11-09 1991-08-06 Wu Ching S Paint drying furnace
DE4403026A1 (de) * 1993-02-02 1994-08-04 Ngk Insulators Ltd Siliziumkarbid-Körper zum Ausstrahlen von Strahlung im fernen Infrarot sowie Trockner und Feuerungsvorrichtung mit diesem Körper
DE19503775C1 (de) 1995-02-04 1996-03-14 Burkamp En Und Anlagentechnik Verfahren zur Trocknung von Lacken mittels Infrarotstrahlern
DE19857940C1 (de) 1998-12-16 2000-07-27 Herberts Gmbh Verfahren zur Mehrschichtlackierung mit strahlenhärtbaren Beschichtungsmitteln

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020112670A1 (de) 2020-05-11 2021-11-11 Dürr Systems Ag Behandlungsmodul für einen Behandlungstunnel, Behandlungstunnel und Fertigungsanlage für ein Behandlungsmodul

Also Published As

Publication number Publication date
EA007500B1 (ru) 2006-10-27
CN1608192A (zh) 2005-04-20
JP2005512810A (ja) 2005-05-12
DK1321731T3 (da) 2006-11-13
US20050069310A1 (en) 2005-03-31
EP1321731B1 (fr) 2006-07-12
PT1321731E (pt) 2006-11-30
EA200400859A1 (ru) 2004-12-30
ES2267660T3 (es) 2007-03-16
WO2003056262A1 (fr) 2003-07-10
CA2471344A1 (fr) 2003-07-10
AU2002352202A1 (en) 2003-07-15
DE50110461D1 (de) 2006-08-24

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