EP1321731B1 - Energietransmitter als Bestandteil einer Beschichtungs- und/oder Trockenanlage, insbesondere für eine Lackbeschichtung - Google Patents

Energietransmitter als Bestandteil einer Beschichtungs- und/oder Trockenanlage, insbesondere für eine Lackbeschichtung Download PDF

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Publication number
EP1321731B1
EP1321731B1 EP01130788A EP01130788A EP1321731B1 EP 1321731 B1 EP1321731 B1 EP 1321731B1 EP 01130788 A EP01130788 A EP 01130788A EP 01130788 A EP01130788 A EP 01130788A EP 1321731 B1 EP1321731 B1 EP 1321731B1
Authority
EP
European Patent Office
Prior art keywords
coating
transmitter
energy transmitter
amount
drying plant
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
EP01130788A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1321731A1 (de
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 DK01130788T priority Critical patent/DK1321731T3/da
Application filed by Moletherm Holding AG filed Critical Moletherm Holding AG
Priority to ES01130788T priority patent/ES2267660T3/es
Priority to EP01130788A priority patent/EP1321731B1/de
Priority to DE50110461T priority patent/DE50110461D1/de
Priority to PT01130788T priority patent/PT1321731E/pt
Priority to AU2002352202A priority patent/AU2002352202A1/en
Priority to EA200400859A priority patent/EA007500B1/ru
Priority to PCT/EP2002/013551 priority patent/WO2003056262A1/de
Priority to CNA028259262A priority patent/CN1608192A/zh
Priority to JP2003556742A priority patent/JP2005512810A/ja
Priority to US10/498,890 priority patent/US20050069310A1/en
Priority to CA002471344A priority patent/CA2471344A1/en
Publication of EP1321731A1 publication Critical patent/EP1321731A1/de
Application granted granted Critical
Publication of EP1321731B1 publication Critical patent/EP1321731B1/de
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 according to the preamble of claim 1.
  • a painting in which a two-stage drying process is used for the paint drying (DE 195 03 775 C1), being used in the first drying stage as an energy transmitter infrared emitters.
  • a problem with these infrared emitters is that the radiation intensity and thus the effective application of energy in the coating material decreases with the square of the distance. Therefore, the infrared emitters are in their shape adapted to the object to be dried exactly contoured and brought by means of controlled actuators in the manner of robots at a small distance to the surface, so that remains to increase the effectiveness of a small intermediate gap. This represents a considerable expenditure on equipment.
  • melting and / or curing of coating materials requires a very high expenditure of energy and time in the previously known coating and varnishing plants.
  • This effort is also due to the fact that a component as a carrier of the coating material, in particular in a good heat conductive metal component itself as well as the ambient air to the required temperature of the coating material heated must so that the adjacent coating material can assume the required high temperature.
  • the further problem then arises that the components which have been heated up with great expenditure of energy must be cooled down time-consuming again for further handling, with high energy consumption once again being required for active cooling.
  • the object of the invention is therefore to provide an energy transmitter as part of a coating and / or drying system, in particular for a paint coating with the essential process energy savings are possible.
  • the energy transmitter comprises at least two transmitter surface elements as antenna elements.
  • Each of the transmitter surface elements has a glass carrier plate which carries a radiation layer on a glass rear surface and whose opposite free glass front surface is directed to a position for an object to be dried or a surface of a component with applied coating material.
  • a surface reflector made of metal material is arranged at a distance and approximately parallel to the glass rear surface and at least in size.
  • 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 especially in the ultra-red range of about 10 9 to 10 12 hertz.
  • the emission layer can be excited by means of a control device for emitting the at least one frequency band, so that natural frequencies of the object to be dried or of the coating material can be excited in resonance.
  • the arrangement seeks the appropriate corresponding resonant frequency to a natural frequency from the radiated frequency band for targeted energization with high energy density according to conventional resonance processes out.
  • coating and / or drying systems can be constructed, which can be operated with significantly less energy and time.
  • transmitter surface elements are rectangular or square formed with flat glass surfaces and arranged in total in at least one plane, preferably in opposing planes. This results in a simple structural design with advantageous large-area Legiabstrahl lake for effective energization. Experiments have shown that a particularly effective radiation with transmitter surface elements with edge lengths of about 20 cm to 80 cm, preferably of about 40 cm is possible.
  • the planes of the transmitter surface elements form inner walls of a tunnel and are arranged on its side walls and / or on the ceiling wall and / or on the bottom wall. Through such a tunnel in particular components for a paint drying can be transported automatically.
  • a radiation layer is claimed, which is highly suitable for the radiation of the specified frequency bands.
  • Claim 6 is directed to further concretions and advantageous embodiments.
  • the transmitter surface elements each have electrical conductors on opposite side regions of the glass rear surfaces equipped with the radiation layer, wherein all the transmitter surface elements are connected in parallel with a harmonic generator of the control device.
  • the harmonic generator comprises an electrical component, which has a steep current slew rate when driven with a drive oscillation and is thus suitable for generating a high harmonic content.
  • These conductors are preferably formed as copper foil strips, wherein a coupling to the radiation layer is capacitive or inductive.
  • a triac or double MOSFET or optionally also an ultrafast switch is suitable. In such an excitation, the emission layer acts in the manner of a frequency transformer, with relatively smaller excitation frequencies leading to the high emission frequencies with the specified ultra-frequency band.
  • the surface reflector should be formed from at least one viable metal sheet, on which the transmitter surface elements are held by means of insulation elements.
  • the distance between the surface reflector and the transmitter surface elements is for an optimum effect at about 1 cm to 10 cm, preferably about 4 cm. This distance is easily predetermined by a corresponding configuration of the insulation elements.
  • Such an arrangement results in a simple and inexpensive construction.
  • the surface reflector itself can turn without the need for an electrical installation be mounted on suitable supporting frames or supporting walls.
  • the radiation layer is in such an arrangement in the intermediate gap between the transmitter surface elements and the surface reflector and is thus advantageously protected even in a harsh operation against mechanical and possibly chemical influences.
  • the uncoated outwardly directed glass surface is largely insensitive and in particular can be kept simply clean, which is essential for effective and trouble-free radiation.
  • the uncoated glass surfaces are also not affected by the chemicals usually occurring in paint shops during melting and drying, such as solvent vapors. High, trouble-free service life with low maintenance costs are thus guaranteed.
  • Claim 10 also claims the construction of an automatically operable paint coating system, wherein in a first device as the first station, the coating material is applied in liquid or powdered or granular form. This can be done advantageously in a conventional manner according to claim 10 electrostatically and / or by spraying.
  • a second device comprises in a second station the energy transmitter described above, whereby the coating-free material, preferably a powder coating material, can be melted and / or dried.
  • the coating-free material preferably a powder coating material
  • bodies or metal housing can in preferably tunnel-like systems continuously or optionally cyclically by means of transport devices, such. B. be transported automatically with conveyor belts.
  • Powder coatings having natural frequencies in the range of wavenumbers of about 1000 to 1800 cm -1 which according to claim 13 are applied to components made of metal material, have proved particularly suitable.
  • FIG. 1 schematically and perspectively shows an energy transmitter 1 as part of a coating and drying installation 2 for a paint coating.
  • This coating and drying unit 2 has in a first station, not shown, a first means for the order of 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 on.
  • the powder coating has natural frequencies in the range of wave numbers of about 1000 to 1800 cm -1 and is electrostatically applied to the component 3 in the first device.
  • the component 3 together with the electrostatically adhering powder coating is conveyed by means of a transport device 4 continuously or intermittently through the first device not shown here and passes after passing through this first station to a schematically shown in FIG. 1 second station 5, the first station is downstream and includes a tunnel 7, through which the component 3 by means of Transport device 4 is conveyed in the desired manner continuously or intermittently.
  • transmitter surface elements 10 are on the inner walls of the tunnel 7, d. H. arranged on the side walls 8 and on the ceiling walls 9 each have a plurality of the energy transmitter 1 forming transmitter surface elements 10, which are preferably substantially adjacent to each other and z. B. form a narrow gap between them, in which, as shown schematically in Fig. 2, an elastically insulating sealing strip 21 can be used.
  • these transmitter surface elements are approximately rectangular in shape and each have a glass carrier plate 11, as can be seen in particular from FIGS. 2 and 3, which show enlarged schematic detail views.
  • This harmonic generator of the control device 16 comprises an electrical component, which has a steep current rise speed corresponding to a steep rising edge when driven with a drive oscillation and is therefore suitable for generating a high harmonic content.
  • the transmitter surface elements 10 can be excited with a frequency in the megahertz range or with a frequency in the gigahertz range.
  • One of the glass rear surface 12 opposite free glass front surface 17 of the transmitter surface elements 10 is directed to the vehicle body 3 to.
  • the inner walls 18 of the tunnel 7 in this case form a surface reflector 20 and are formed from a load-bearing metal sheet on which the transmitter surface elements 10 are held via insulation elements 19 shown in FIG. 2.
  • the distance between the surface reflector 20 and the transmitter surface elements 10 is z. B. approximately between 1 cm to 10 cm.
  • an electromagnetic radiation in the ultra-red is emitted by the respective emission layer 13 on the transmitter surface elements 10 whose frequency band covers the characteristic natural frequencies of the powder coating, so that this is melted onto the 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 Energietransmitter als Bestandteil einer Beschichtungs- und/oder Trockenanlage, insbesondere für eine Lackbeschichtung Expired - Lifetime EP1321731B1 (de)

Priority Applications (12)

Application Number Priority Date Filing Date Title
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 (de) 2001-12-22 2001-12-22 Energietransmitter als Bestandteil einer Beschichtungs- und/oder Trockenanlage, insbesondere für eine Lackbeschichtung
DE50110461T DE50110461D1 (de) 2001-12-22 2001-12-22 Energietransmitter als Bestandteil einer Beschichtungs- und/oder Trockenanlage, insbesondere für eine Lackbeschichtung
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
DK01130788T DK1321731T3 (da) 2001-12-22 2001-12-22 Energitransmitter som bestanddel af et coatings- og/eller törringsanlæg, især til en lakcoating
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
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
PCT/EP2002/013551 WO2003056262A1 (de) 2001-12-22 2002-11-30 Energietransmitter als bestandteil einer beschichtungs- und/oder trockenanlage, insbesondere für eine lackbeschichtung
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
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
CA002471344A CA2471344A1 (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 (de) 2001-12-22 2001-12-22 Energietransmitter als Bestandteil einer Beschichtungs- und/oder Trockenanlage, insbesondere für eine Lackbeschichtung

Publications (2)

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

Family

ID=8179690

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01130788A Expired - Lifetime EP1321731B1 (de) 2001-12-22 2001-12-22 Energietransmitter als Bestandteil einer Beschichtungs- und/oder Trockenanlage, insbesondere für eine Lackbeschichtung

Country Status (12)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE112010000464T5 (de) * 2009-03-06 2012-06-14 Gm Global Technology Operations Llc, ( N.D. Ges. D. Staates Delaware) Verfahren und vorrichtung zum lackaushärten
ITVI20120338A1 (it) * 2012-12-19 2014-06-20 Cartigliano Off Spa Metodo ed apparato per l'essicatura di pelli durante il processo di rifinizione
EP3640034A1 (en) * 2017-10-30 2020-04-22 HP Scitex Ltd Print agent drying
AT523061B1 (de) * 2019-10-16 2021-05-15 Ess Holding Gmbh Verfahren zur Oberflächenbeschichtung von Werkstücken
DE102020112670A1 (de) 2020-05-11 2021-11-11 Dürr Systems Ag Behandlungsmodul für einen Behandlungstunnel, Behandlungstunnel und Fertigungsanlage für ein Behandlungsmodul

Family Cites Families (11)

* 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
US3102007A (en) * 1960-05-25 1963-08-27 Goldman David Drying apparatus employing radiant panel heaters
GB983029A (en) * 1963-04-24 1965-02-10 David Goldman Drying apparatus employing radiant panel heaters
FR2527757A1 (fr) * 1982-05-27 1983-12-02 Picot Ernest 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
JPH06287091A (ja) * 1993-02-02 1994-10-11 Ngk Insulators Ltd ＳｉＣ含有遠赤外線放射体、乾燥装置及び焼成装置
RU2070773C1 (ru) * 1994-11-18 1996-12-20 Воронкова Зинаида Петровна Резистивный электронагреватель
DE19503775C1 (de) 1995-02-04 1996-03-14 Burkamp En Und Anlagentechnik Verfahren zur Trocknung von Lacken mittels Infrarotstrahlern
US6297481B1 (en) * 1998-12-02 2001-10-02 Lawrence Gordon Infrared food warmer
DE19857940C1 (de) 1998-12-16 2000-07-27 Herberts Gmbh Verfahren zur Mehrschichtlackierung mit strahlenhärtbaren Beschichtungsmitteln

Also Published As

Publication number Publication date
JP2005512810A (ja) 2005-05-12
AU2002352202A1 (en) 2003-07-15
EP1321731A1 (de) 2003-06-25
DK1321731T3 (da) 2006-11-13
EA200400859A1 (ru) 2004-12-30
DE50110461D1 (de) 2006-08-24
EA007500B1 (ru) 2006-10-27
ES2267660T3 (es) 2007-03-16
US20050069310A1 (en) 2005-03-31
CN1608192A (zh) 2005-04-20
CA2471344A1 (en) 2003-07-10
PT1321731E (pt) 2006-11-30
WO2003056262A1 (de) 2003-07-10

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