EP1744115A2 - Drying plant - Google Patents

Drying plant Download PDF

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Publication number
EP1744115A2
EP1744115A2 EP06012202A EP06012202A EP1744115A2 EP 1744115 A2 EP1744115 A2 EP 1744115A2 EP 06012202 A EP06012202 A EP 06012202A EP 06012202 A EP06012202 A EP 06012202A EP 1744115 A2 EP1744115 A2 EP 1744115A2
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EP
European Patent Office
Prior art keywords
tower
drying
lamps
flap
cover
Prior art date
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Ceased
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EP06012202A
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German (de)
French (fr)
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EP1744115A3 (en
Inventor
Tiemo Sehon
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Individual
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Individual
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/066—After-treatment involving also the use of a gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12—Vehicle bodies, e.g. after being painted

Definitions

  • the invention relates to a drying plant with integrated or separate painting, with a front wall having an entrance, an opposite end wall and two longitudinal side walls and UV lamps designed as drying lamps, which are arranged in at least one, in particular in the four side edges of the side walls.
  • drying systems which are downstream of paint shops.
  • the paint shops are designed as pure paint shops, in which objects, especially vehicles, are painted by means of compressed air. The drying process then takes place in the downstream drying plant.
  • combined painting and drying systems in which the painted vehicle can be dried in the same room immediately after the painting process.
  • a paint drying system is known in which in the side edges of the interior of a spray booth door-mounted housing are mounted, the front of which are provided with hot air nozzles.
  • Such combined painting and drying systems are used for the repair operation and drying takes place by means of hot air.
  • drying methods can also be used there, for example drying by means of UV light.
  • a lacquer which can be dried by means of UV light (UV lacquers).
  • UV lacquers Such paints have the advantage that they can be dried much faster, so that the drying time of 25 min to 45 min shortened to 2 min to 10 min. Since no paint is done in such drying systems and these drying systems are traversed by the objects to be dried, the arrangement of the drying lamps is usually not problematic because they hinder any other work in the drying plant. In combined painting and drying plants, however, the use of drying lamps is prohibited, as the risk of explosion is too high. In spray booths, a highly explosive gas mixture prevails during the painting process and during the evaporation. The use of electrical equipment is therefore not possible. So it can only warm air, the outside of the Spray booth, for example, was electrically heated to be used as a drying medium.
  • the invention is therefore based on the object, a drying system in which vehicles are dried faster and hinders neither the entry or the exit of the vehicle still difficult to be performed in the plant activities.
  • a drying system of the type mentioned in the present invention that in the side edge a tower is arranged in the tower one or more UV lamps are provided and the tower on its side facing the room interior has a cover, in particular a flap and The cover is provided with a voltage applied to the side of the tower seal
  • UV lamps as drying lamps has the significant advantage that the drying time is required to a fraction of the usual drying time, which would be required when using hot air.
  • UV lamps are known from mass production, but the use of such UV lamps is new in the repair shop.
  • the UV lamps do not interfere, since they are located in the region of the side edge of the side walls. As a rule, this space is not needed and is not needed by the vehicles entering the drying plant.
  • existing drying systems are relatively easy to convert or retrofit by such UV lamps are installed in the side edges. When not in use, the UV lamps are covered. This has the significant advantage that in the painting, that is between the drying cycles, the UV lamps are protected, so that the paint mist can not precipitate on the UV lamps. The risk of explosion is prevented by providing the cover with a seal which bears against the side of the tower facing the interior of the room and thus separates the UV lamps from the gas mixture in the spray booth.
  • a pillar or tower is arranged in the side edge and in the tower one or more UV lamps are provided.
  • This embodiment has the significant advantage that the UV lamps are combined to form a drying unit in the form of a tower and thus are uniformly manageable. This not only allows easy and quick installation, but the tower also provides some protection of the relatively sensitive UV lamps against mechanical influences.
  • the interior of the tower has a pneumatic overpressure device.
  • This overpressure device ensures that e.g. when the seal, e.g. a rubber seal, worn or damaged, no explosive gas mixture penetrates into the interior of the tower.
  • the cover When the cover is closed, an overpressure is built up in the tower, so that, if at all, air flows out of the tower, but no gas penetrates.
  • the UV radiators are arranged above and / or next to one another. In this way, the amount of energy required for an effective drying process can be relatively easily applied to the workpiece to be dried or to be dried and cured lacquer of the workpiece.
  • the UV lamps are at a distance from each other.
  • the UV lamps are horizontally and / or vertically pivotable and / or height-adjustable arranged in the tower, so that they can be optimally aligned to the object to be dried.
  • the UV lamps are covered in a simple manner in that the tower has a slide or a flap on its side facing the interior of the room. This flap is opened for drying operation and closes immediately after completion of drying, so that the UV lamps are already protected before the drying room is released for entry, i. before people enter the room and the next painting process is started.
  • the flap is formed in one or more parts and can be pivoted about a vertical axis. If only a part of the UV lamps of a tower is required, then only the part of the flap associated with these UV lamps is opened, that is swung open, so that the other UV lamps, which are not needed, continue to be protected. Accordingly, the flap parts are each provided with seals, so that they protect the underlying UV lamp, or tightly seal the space behind it.
  • the flap can be pivoted manually, but a mechanical, in particular automatic pivoting, by means of an electric, pneumatic or hydraulic drive, is preferred.
  • the opening and closing of the flaps, the switching on and off of the lamps and / or the pivoting and height adjustment of the lamps can be done by means of a controller, in particular of a control panel located outside the drying plant.
  • the compressed air device of the spray booth is used for pivoting the flap and for generating the overpressure in the interior of the tower.
  • the overpressure can be generated immediately when the flap assumes its closed position.
  • an interval valve is provided, with which the overpressure keeps in a predetermined range of values.
  • the tower has a ventilation device.
  • the UV lamps can be ventilated and the waste heat can be dissipated.
  • the lamps are preferably ventilated.
  • the entire ventilation device is integrated into the tower and can be handled together with it.
  • the ventilation device can be sensor-controlled, for which temperature sensors are arranged in the tower. It can also be time-controlled.
  • the ventilation device is preferably combined with the overpressure device to form a unit.
  • the UV lamps are provided with deflecting mirrors.
  • the beam path of the UV lamps can be precisely controlled and changed, without the need for an additional adjustment of the radiator.
  • the UV lamps and / or the deflecting mirrors are horizontally and / or vertically pivotable and / or height-adjustable in the tower.
  • FIGS. 2 and 3 show a total of 10 designated drying plant, the entrance 12 having end wall 14, an opposite end wall 16 and two longitudinal side walls 18 and 20 has.
  • the side walls 14 to 20 form side edges 22, to which a tower designated 24 is arranged in each case in the space interior 32 of the drying plant 10.
  • the towers 24 are arranged such that they neither adversely affect the entrance 12 nor impair the interior 32 of the drying installation 10 in such a way that they constitute an obstacle.
  • the towers 24 are located in an area of the drying plant 10, which is usually required neither by an object to be dried nor by persons.
  • each tower 24 has an opening 26 through which air-carrying channels can be passed.
  • These air-conducting channels are connected to the tower 24, in particular to a connecting piece 28, so that cooling air can be introduced into the tower 24.
  • an overpressure in the tower 24 is generated so that it is ensured when the flap 30 is closed that no gas mixture from the interior of the room 32 of the drying plant 10 penetrates into the tower 24.
  • the inner surfaces of the flaps 30 are provided with peripheral seals 29, in particular with rubber seals 31. These seals are already sufficient to keep the interior 33 of the tower 24 free of gases from the interior space 32 of the drying plant 10.
  • the overpressure is merely for safety e.g. needed for worn or defective seals.
  • each tower 24 is provided with a flap 30 with which the tower 24 can be closed on the front side, that is to say on the side facing the space interior 32.
  • the flap 30 is, as better seen in Figure 4, pivotally mounted about a pivot axis 34 and is driven by a pneumatic cylinder 36 ( Figures 7 and 9).
  • This pneumatic cylinder 36 like the overpressure device of the tower 24, for example, connected to a compressed air supply to the drying system 10.
  • an interval valve is provided, so that the overpressure does not exceed or fall short of predetermined threshold values.
  • a pressure sensor is installed in the tower 24. The valve can also be timed.
  • each tower 24 Within each tower 24 are UV lamps 38, which are in the illustrated variant above the other and at a distance from each other.
  • the nozzle 28 is part of a ventilation device 40, is brought to the cooling air to the UV lamps 38 for the cooling thereof.
  • the flap 30 is dimensioned so that it completely covers in its closed position, that is, when the UV lamps 38 are not in use, as shown in FIG.
  • the flap 30 is in this position, no drying process can take place, however, the drying unit 10 can be used for other purposes, for example for painting purposes, without the UV lamps pollute 38 and gases from the interior space 32 of the drying system 10 in the Penetrate tower 24.
  • the UV lamps 38 are protected by the flap 30 against mechanical damage.
  • FIGS. 7 and 9 also show air guide plates 42 with which the cooling air supplied via the connection 28 is guided behind the front of the tower 24 or brought to the rear of the UV emitter 38.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The system has an integrated or separate paint spray line, two opposed front walls (12, 14), two side walls (18, 20), and drying lamps designed as ultra-violet (UV) radiators. The UV radiators are arranged in four side edges of the walls (12, 14, 18, 20). A spire (24) is arranged in the side edges and the UV-radiators are provided in the spire. The spire includes a flap (30) at a side facing internal space, where the flap is provided with a sealing, which lie against the side of the spire.

Description

Die Erfindung betrifft eine Trocknungsanlage mit integrierter oder separater Lackieranlage, mit einer eine Einfahrt aufweisenden Stirnseitenwand, einer gegenüberliegenden Stirnseitenwand und zwei Längsseitenwänden sowie als UV-Strahler ausgebildete Trocknungslampen, die in wenigstens einer, insbesondere in den vier Seitenkanten der Seitenwände, angeordnet sind.The invention relates to a drying plant with integrated or separate painting, with a front wall having an entrance, an opposite end wall and two longitudinal side walls and UV lamps designed as drying lamps, which are arranged in at least one, in particular in the four side edges of the side walls.

Es sind Trocknungsanlagen bekannt, die Lackieranlagen nachgeschaltet sind. Dabei sind die Lackieranlagen als reine Lackieranlagen ausgebildet, in welchen Gegenstände, insbesondere Fahrzeuge, mittels Druckluft lackiert werden. Der Trocknungsvorgang erfolgt dann in der nachgeschalteten Trocknungsanlage. Es sind aber auch kombinierte Lackier- und Trocknungsanlagen bekannt, bei denen das lackierte Fahrzeug im gleichen Raum unmittelbar nach dem Lackiervorgang getrocknet werden kann. Aus der EP-A-1 242 779 ist ein Lacktrocknungssystem bekannt, bei dem in den Seitenkanten des Innenraums einer Spritzkabine mit Türen versehene Gehäuse angebracht sind, deren Vorderseite mit Warmluftdüsen versehen sind. Derartige kombinierte Lackier- und Trocknungsanlagen werden für den Reparaturbetrieb eingesetzt und die Trocknung erfolgt mittels Warmluft.There are known drying systems, which are downstream of paint shops. The paint shops are designed as pure paint shops, in which objects, especially vehicles, are painted by means of compressed air. The drying process then takes place in the downstream drying plant. But there are also known combined painting and drying systems in which the painted vehicle can be dried in the same room immediately after the painting process. From the EP-A-1 242 779 a paint drying system is known in which in the side edges of the interior of a spray booth door-mounted housing are mounted, the front of which are provided with hot air nozzles. Such combined painting and drying systems are used for the repair operation and drying takes place by means of hot air.

In Herstellungsbetrieben, also bei der Serienfertigung, können derartige Anlagen nicht eingesetzt werden, da die Verweilzeit der Gegenstände in den Lackieranlagen von bis zu 60 Minuten zu lange wäre. Hier werden getrennte Lackier- und Trocknungsanlagen eingesetzt, welche von den zu lackierenden und zu trocknenden Gegenständen durchlaufen werden.In manufacturing plants, so in mass production, such systems can not be used, since the residence time of the objects in the painting of up to 60 minutes would be too long. Here, separate painting and drying systems are used, which are run through by the objects to be painted and dried.

Dort können aber auch andere Trocknungsverfahren verwendet werden, zum Beispiel eine Trocknung mittels UV-Licht. Hierfür ist es aber erforderlich, dass auch ein Lack verwendet wird, der mittels UV-Licht getrocknet werden kann (UV-Lacke). Derartige Lacke besitzen den Vorteil, dass sie wesentlich schneller getrocknet werden können, so dass sich die Trockenzeit von 25 min bis 45 min auf 2 min bis 10 min verkürzt. Da in derartigen Trocknungsanlagen keine Lackierarbeiten erfolgen und diese Trocknungsanlagen von den zu trocknenden Gegenständen durchlaufen werden, ist die Anordnung der Trocknungslampen in der Regel nicht problematisch, da sie keine anderen Arbeiten in der Trocknungsanlage behindern. In kombinierten Lackier- und Trocknungsanlagen verbietet sich jedoch die Verwendung von Trocknungslampen, da die Explosionsgefahr zu hoch ist. In Spritzkabinen herrscht während des Lackiervorganges und während der Abdunstung ein hoch explosives Gasgemisch vor. Die Verwendung elektrischer Einrichtungen ist daher nicht möglich. Es kann also lediglich Warmluft, die Außerhalb der Spritzkabine z.B. elektrisch aufgeheizt wurde, als Trocknungsmedium verwendet werden.However, other drying methods can also be used there, for example drying by means of UV light. However, for this it is necessary that a lacquer is used, which can be dried by means of UV light (UV lacquers). Such paints have the advantage that they can be dried much faster, so that the drying time of 25 min to 45 min shortened to 2 min to 10 min. Since no paint is done in such drying systems and these drying systems are traversed by the objects to be dried, the arrangement of the drying lamps is usually not problematic because they hinder any other work in the drying plant. In combined painting and drying plants, however, the use of drying lamps is prohibited, as the risk of explosion is too high. In spray booths, a highly explosive gas mixture prevails during the painting process and during the evaporation. The use of electrical equipment is therefore not possible. So it can only warm air, the outside of the Spray booth, for example, was electrically heated to be used as a drying medium.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Trocknungsanlage, in welcher Fahrzeuge schneller getrocknet werden und weder die Ein- noch die Ausfahrt des Fahrzeugs behindert noch in der Anlage durchzuführende Tätigkeiten erschwert werden.The invention is therefore based on the object, a drying system in which vehicles are dried faster and hinders neither the entry or the exit of the vehicle still difficult to be performed in the plant activities.

Diese Aufgabe wird mit einer Trocknungsanlage der eingangs genannten Art erfindungsgemäß dadurch gelöst, dass in der Seitenkante ein Turm angeordnet ist, im Turm ein oder mehrere UV-Strahler vorgesehen sind und der Turm an seiner zum Rauminneren weisenden Seite eine Abdeckung, insbesondere eine Klappe aufweist und die Abdeckung mit einer an der Seite des Turms anliegenden Abdichtung versehen istThis object is achieved with a drying system of the type mentioned in the present invention that in the side edge a tower is arranged in the tower one or more UV lamps are provided and the tower on its side facing the room interior has a cover, in particular a flap and The cover is provided with a voltage applied to the side of the tower seal

Durch die Verwendung von UV-Strahlern als Trocknungslampen wird der wesentliche Vorteil erzielt, dass die Trocknungszeit auf einen Bruchteil der üblichen Trocknungszeit, die beim Einsatz von Warmluft erforderlich wäre, benötigt wird. Zwar sind UV-Strahler aus der Serienfertigung bekannt, jedoch ist der Einsatz derartiger UV-Strahler im Reparaturbetrieb neu. Außerdem wirken sich die UV-Strahler nicht als störend aus, da sie im Bereich der Seitenkante der Seitenwände angeordnet sind. In der Regel wird dieser Raum nicht benötigt und wird auch von den in die Trocknungsanlage einfahrenden Fahrzeugen nicht gebraucht. Ferner sind bestehende Trocknungsanlagen relativ einfach um- oder nachrüstbar, indem in den Seitenkanten derartige UV-Strahler installiert werden. Bei Nichtgebrauch sind die UV-Strahler abgedeckt. Dies hat den wesentlichen Vorteil, dass im Lackierbetrieb, das heißt zwischen den Trocknungszyklen, die UV-Strahler geschützt werden, so dass sich der Lacknebel nicht auf den UV-Strahlern niederschlagen kann. Die Explosionsgefahr wird dadurch verhindert, dass die Abdeckung mit einer Abdichtung versehen ist, die an der dem Rauminnern zugewandten Seite des Turms anliegt und somit die UV-Lampen vom in der Spritzkabine sich befindendem Gasgemisch trennt.The use of UV lamps as drying lamps has the significant advantage that the drying time is required to a fraction of the usual drying time, which would be required when using hot air. Although UV lamps are known from mass production, but the use of such UV lamps is new in the repair shop. In addition, the UV lamps do not interfere, since they are located in the region of the side edge of the side walls. As a rule, this space is not needed and is not needed by the vehicles entering the drying plant. Furthermore, existing drying systems are relatively easy to convert or retrofit by such UV lamps are installed in the side edges. When not in use, the UV lamps are covered. This has the significant advantage that in the painting, that is between the drying cycles, the UV lamps are protected, so that the paint mist can not precipitate on the UV lamps. The risk of explosion is prevented by providing the cover with a seal which bears against the side of the tower facing the interior of the room and thus separates the UV lamps from the gas mixture in the spray booth.

Dabei ist in der Seitenkante eine Säule oder ein Turm angeordnet ist und im Turm sind eine oder mehrere UV-Strahler vorgesehen sind. Diese Ausgestaltung besitzt den wesentlichen Vorteil, dass die UV-Strahler zu einer Trocknungseinheit in Form eines Turmes zusammengefasst sind und somit einheitlich handhabbar sind. Dies ermöglicht nicht nur eine einfache und schnelle Montage, sondern der Turm bietet auch einen gewissen Schutz der relativ empfindlichen UV-Strahlern gegen mechanische Einflüsse.In this case, a pillar or tower is arranged in the side edge and in the tower one or more UV lamps are provided. This embodiment has the significant advantage that the UV lamps are combined to form a drying unit in the form of a tower and thus are uniformly manageable. This not only allows easy and quick installation, but the tower also provides some protection of the relatively sensitive UV lamps against mechanical influences.

Bei einer Weiterbildung ist vorgesehen, dass der Innenraum des Turmes eine pneumatische Überdruckeinrichtung aufweist. Durch diese Überdruckeinrichtung wird gewährleistet, dass z.B. dann, wenn die Abdichtung, z.B. eine Gummidichtung, abgenutzt oder beschädigt ist, kein explosives Gasgemisch in den Innenraum des Turmes eindringt. Bei geschossener Abdeckung wird im Turm ein Überdruck aufgebaut, so das, wenn überhaupt, Luft aus dem Turm ausströmt, aber kein Gas eindringt.In a further development it is provided that the interior of the tower has a pneumatic overpressure device. This overpressure device ensures that e.g. when the seal, e.g. a rubber seal, worn or damaged, no explosive gas mixture penetrates into the interior of the tower. When the cover is closed, an overpressure is built up in the tower, so that, if at all, air flows out of the tower, but no gas penetrates.

Bei bevorzugten Ausführungsformen ist vorgesehen, dass die UV-Strahler über- und/oder nebeneinander angeordnet sind. Auf diese Weise kann relativ einfach die für einen effektiven Trocknungsvorgang erforderliche Energiemenge auf das zu trocknende Werkstück bzw. den zu trocknenden und auszuhärtenden Lack des Werkstücks aufgebracht werden.In preferred embodiments, it is provided that the UV radiators are arranged above and / or next to one another. In this way, the amount of energy required for an effective drying process can be relatively easily applied to the workpiece to be dried or to be dried and cured lacquer of the workpiece.

Um die Lampen im Turm einfach zu montieren und auch ausrichten zu können, stehen die UV-Strahler mit Abstand zueinander. Bevorzugt sind die UV-Strahler horizontal und/oder vertikal verschwenkbar und/oder höhenverstellbar im Turm angeordnet, so dass sie optimal auf denn zu trocknenden Gegenstand ausgerichtet werden können.In order to easily mount and align the lamps in the tower, the UV lamps are at a distance from each other. Preferably, the UV lamps are horizontally and / or vertically pivotable and / or height-adjustable arranged in the tower, so that they can be optimally aligned to the object to be dried.

Die Abdeckung der UV-Strahler erfolgt bei einem bevorzugten Ausführungsbeispiel in einfacher Weise dadurch, dass der Turm auf seiner zum Rauminneren weisenden Seite einen Schieber oder eine Klappe aufweist. Diese Klappe wird für den Trocknungsbetrieb geöffnet und schließt unmittelbar nach Beendigung der Trocknung, so dass die UV-Strahler schon geschützt sind, bevor der Trocknungsraum für das Betreten freigegeben wird, d.h. bevor Personen in den Raum eintreten und der nächste Lackiervorgang gestartet wird.In a preferred embodiment, the UV lamps are covered in a simple manner in that the tower has a slide or a flap on its side facing the interior of the room. This flap is opened for drying operation and closes immediately after completion of drying, so that the UV lamps are already protected before the drying room is released for entry, i. before people enter the room and the next painting process is started.

Erfindungsgemäß ist die Klappe ein- oder mehrteilig ausgebildet und um eine vertikale Achse verschwenkbar. Wird lediglich ein Teil der UV-Strahler eines Turmes benötigt, dann wird lediglich der diesen UV-Strahlern zugehörige Teil der Klappe geöffnet, das heißt aufgeschwenkt, so dass die anderen UV-Strahler, die nicht benötigt werden, weiterhin geschützt bleiben. Entsprechend sind die Klappenteile jeweils mit Abdichtungen versehen, so dass sie die dahinter liegende UV-Lampe schützen, bzw. den dahinter liegenden Raum dicht verschließen.According to the invention, the flap is formed in one or more parts and can be pivoted about a vertical axis. If only a part of the UV lamps of a tower is required, then only the part of the flap associated with these UV lamps is opened, that is swung open, so that the other UV lamps, which are not needed, continue to be protected. Accordingly, the flap parts are each provided with seals, so that they protect the underlying UV lamp, or tightly seal the space behind it.

Dabei kann die Klappe manuell verschwenkt werden, wobei jedoch eine maschinelle, insbesondere automatische Verschwenkung, mittels eines elektrischen, pneumatischen oder hydraulischen Antriebs, bevorzugt wird. Das Öffnen und Schließen der Klappen, das Ein- und Ausschalten der Lampen und/oder das Verschwenken und Höhenverstellen der Lampen kann mittels einer Steuerung erfolgen, insbesondere von einem außerhalb der Trocknungsanlage sich befindenden Steuerpult. Bevorzugt wird für das Verschwenken der Klappe und für das Erzeugen des Überdrucks im Innenraum des Turmes die Presslufteinrichtung der Spritzkabine verwendet. Dabei kann der Überdruck sofort dann erzeugt werden, wenn die Klappe ihre Schließstellung einnimmt. Vorteilhaft ist ein Intervallventil vorgesehen, mit dem der Überdruck in einem vorgegebenen Wertebereich hält.In this case, the flap can be pivoted manually, but a mechanical, in particular automatic pivoting, by means of an electric, pneumatic or hydraulic drive, is preferred. The opening and closing of the flaps, the switching on and off of the lamps and / or the pivoting and height adjustment of the lamps can be done by means of a controller, in particular of a control panel located outside the drying plant. Preferably, the compressed air device of the spray booth is used for pivoting the flap and for generating the overpressure in the interior of the tower. The overpressure can be generated immediately when the flap assumes its closed position. Advantageously, an interval valve is provided, with which the overpressure keeps in a predetermined range of values.

Bei einer bevorzugten Ausführungsform der Erfindung weist der Turm eine Belüftungseinrichtung auf. Mittels dieser Belüftungseinrichtung können die UV-Strahler belüftet und die Abwärme abgeführt werden. Dabei werden die Lampen bevorzugt hinterlüftet. Die gesamte Belüftungseinrichtung ist in den Turm integriert und zusammen mit diesem handhabbar.In a preferred embodiment of the invention, the tower has a ventilation device. By means of this ventilation device, the UV lamps can be ventilated and the waste heat can be dissipated. The lamps are preferably ventilated. The entire ventilation device is integrated into the tower and can be handled together with it.

Die Belüftungseinrichtung kann sensorgesteuert sein, wofür Temperatursensoren im Turm angeordnet sind. Sie kann aber auch zeitgesteuert sein. Bevorzugt ist die Belüftungseinrichtung mit der Überdruckeinrichtung zu einer Einheit kombiniert.The ventilation device can be sensor-controlled, for which temperature sensors are arranged in the tower. It can also be time-controlled. The ventilation device is preferably combined with the overpressure device to form a unit.

Bevorzugt sind die UV-Strahler mit Umlenkspiegeln versehen. Dadurch kann der Strahlengang der UV-Strahler präzise gesteuert und verändert werden, ohne dass es einer zusätzlichen Justierung des Strahlers bedarf. Dabei sind die UV-Strahler und /oder die Umlenkspiegel horizontal und/oder vertikal verschwenkbar und/oder höhenverstellbar im Turm angeordnet sind.Preferably, the UV lamps are provided with deflecting mirrors. Thereby, the beam path of the UV lamps can be precisely controlled and changed, without the need for an additional adjustment of the radiator. The UV lamps and / or the deflecting mirrors are horizontally and / or vertically pivotable and / or height-adjustable in the tower.

Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung ein besonders bevorzugtes Ausführungsbeispiel im Einzelnen beschrieben ist. Dabei können die in der Zeichnung dargestellten und in den Ansprüchen und der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein.Further advantages, features and details of the invention will become apparent from the following description in which, with reference to the drawing, a particularly preferred embodiment described in detail is. The features shown in the drawing and mentioned in the claims and the description may each be essential to the invention individually or in any combination.

In der Zeichnung zeigen:In the drawing show:

Figur 1FIG. 1
eine perspektivische Darstellung der erfindungsgemäßen Trocknungsanlage;a perspective view of the drying system according to the invention;
Figur 2FIG. 2
eine Seitenansicht der Trocknungsanlage in Richtung des Pfeils II gemäß Figur 1;a side view of the drying plant in the direction of arrow II of Figure 1;
Figur 3FIG. 3
eine Draufsicht auf die Trocknungsanlage in Richtung des Pfeils III gemäß Figur 1;a plan view of the drying plant in the direction of arrow III in Figure 1;
Figur 4FIG. 4
eine perspektivische Ansicht eines Turmes mit integrierten UV-Strahlern;a perspective view of a tower with integrated UV lamps;
Figur 5FIG. 5
eine Seitenansicht in Richtung des Pfeils V gemäß Figur 4;a side view in the direction of arrow V of Figure 4;
Figur 6FIG. 6
eine Seitenansicht in Richtung des Pfeils VI gemäß Figur 4 mit geöffneter Klappe;a side view in the direction of arrow VI of Figure 4 with the flap open;
Figur 7FIG. 7
einen Schnitt VII-VII gemäß Figur 6;a section VII-VII of Figure 6;
Figur 8FIG. 8
eine Ansicht gemäß Figur 6 mit geschlossener Klappe; unda view according to Figure 6 with the flap closed; and
Figur 9FIG. 9
einen Schnitt IX-IX gemäß Figur 8.a section IX-IX of Figure 8.

Die Figur 1 zeigt eine insgesamt mit 10 bezeichnete Trocknungsanlage, die eine Einfahrt 12 aufweisende Stirnseitenwand 14, eine gegenüberliegende Stirnseitenwand 16 sowie zwei Längsseitenwände 18 und 20 besitzt. Die Seitenwände 14 bis 20 bilden Seitenkanten 22, an denen im Rauminneren 32 der Trocknungsanlage 10 jeweils ein mit 24 bezeichneter Turm angeordnet ist. Die Türme 24 sind, wie aus den Figuren 2 und 3 erkennbar, so angeordnet, dass sie weder die Einfahrt 12 nachteilig beeinflussen noch das Rauminnere 32 der Trocknungsanlage 10 so beeinträchtigen, dass sie ein Hindernis darstellen. Die Türme 24 befinden sich in einem Bereich der Trocknungsanlage 10, der üblicherweise weder von einem zu trocknenden Gegenstand noch von Personen benötigt wird.1 shows a total of 10 designated drying plant, the entrance 12 having end wall 14, an opposite end wall 16 and two longitudinal side walls 18 and 20 has. The side walls 14 to 20 form side edges 22, to which a tower designated 24 is arranged in each case in the space interior 32 of the drying plant 10. As can be seen in FIGS. 2 and 3, the towers 24 are arranged such that they neither adversely affect the entrance 12 nor impair the interior 32 of the drying installation 10 in such a way that they constitute an obstacle. The towers 24 are located in an area of the drying plant 10, which is usually required neither by an object to be dried nor by persons.

Aus Figur 2 ist noch erkennbar, dass unmittelbar oberhalb eines jeden Turmes 24 die Längsseitenwand 18 beziehungsweise 20 eine Öffnung 26 aufweist, durch welche Luft führende Kanäle hindurchgeführt werden können. Diese Luft führenden Kanäle werden an den Turm 24, insbesondere an einen Stutzen 28 angeschlossen, so dass Kühlluft in den Turm 24 eingeleitet werden kann. Über die Luft führenden Kanäle wird aber auch ein Überdruck im Turm 24 erzeugt, so dass bei geschlossener Klappe 30 sichergestellt ist, dass aus dem Rauminneren 32 der Trocknungsanlage 10 kein Gasgemisch in den Turm 24 eindringt. Hierfür sind die Innenflächen der Klappen 30 mit am Rand umlaufenden Abdichtungen 29, insbesondere mit Gummidichtungen 31 versehen. Diese Abdichtungen genügen bereits, den Innenraum 33 des Turms 24 frei von Gasen aus dem Rauminneren 32 der Trocknungsanlage 10 zu halten. Der Überdruck wird lediglich zur Sicherheit z.B. bei verschlissenen oder defekten Abdichtungen benötigt.It can still be seen from FIG. 2 that directly above each tower 24, the longitudinal side wall 18 or 20 has an opening 26 through which air-carrying channels can be passed. These air-conducting channels are connected to the tower 24, in particular to a connecting piece 28, so that cooling air can be introduced into the tower 24. Via the air-conducting channels but also an overpressure in the tower 24 is generated so that it is ensured when the flap 30 is closed that no gas mixture from the interior of the room 32 of the drying plant 10 penetrates into the tower 24. For this purpose, the inner surfaces of the flaps 30 are provided with peripheral seals 29, in particular with rubber seals 31. These seals are already sufficient to keep the interior 33 of the tower 24 free of gases from the interior space 32 of the drying plant 10. The overpressure is merely for safety e.g. needed for worn or defective seals.

In den Figuren 1 und 3 ist noch erkennbar, dass jeder Turm 24 mit einer Klappe 30 versehen ist, mit welcher der Turm 24 vorderseitig, das heißt auf der dem Rauminneren 32 zugewandten Seite, verschlossen werden kann. Die Klappe 30 ist, wie besser aus der Figur 4 erkennbar, über eine Schwenkachse 34 schwenkbar gelagert und wird von einem Pneumatikzylinder 36 (Figuren 7 und 9) angetrieben. Dieser Pneumatikzylinder 36, ist, wie die Überdruckeinrichtung des Turmes 24, z.B. an eine Pressluftversorgung der Trocknungsanlage 10 angeschlossen. Zur Aufrechterhaltung des Überdrucks ist ein Intervallventil vorgesehen, so dass der Überdruck vorgegebene Schwellwerte nicht über- oder unterschreitet. Gegebenenfalls zur Ansteuerung des Ventils ist im Turm 24 ein Drucksensor installiert. Das Ventil kann auch zeitgesteuert sein.It can also be seen in FIGS. 1 and 3 that each tower 24 is provided with a flap 30 with which the tower 24 can be closed on the front side, that is to say on the side facing the space interior 32. The flap 30 is, as better seen in Figure 4, pivotally mounted about a pivot axis 34 and is driven by a pneumatic cylinder 36 (Figures 7 and 9). This pneumatic cylinder 36, like the overpressure device of the tower 24, for example, connected to a compressed air supply to the drying system 10. To maintain the overpressure, an interval valve is provided, so that the overpressure does not exceed or fall short of predetermined threshold values. Optionally, for controlling the valve, a pressure sensor is installed in the tower 24. The valve can also be timed.

Innerhalb eines jeden Turmes 24 befinden sich UV-Strahler 38, die bei der dargestellten Variante übereinander und mit Abstand zueinander liegen. Der Stutzen 28 ist Teil einer Belüftungseinrichtung 40, mit der Kühlluft an die UV-Strahler 38 zu deren Kühlung herangeführt wird.Within each tower 24 are UV lamps 38, which are in the illustrated variant above the other and at a distance from each other. The nozzle 28 is part of a ventilation device 40, is brought to the cooling air to the UV lamps 38 for the cooling thereof.

Die Klappe 30 ist derart bemessen, dass sie in ihrer Schließstellung, das heißt bei Nichtgebrauch der UV-Strahler 38, diese vollständig abdeckt, was in der Figur 8 gezeigt ist. Befindet sich die Klappe 30 in dieser Position, kann kein Trocknungsvorgang stattfinden, jedoch kann die Trocknungsanlage 10 zu anderen Zwecken, zum Beispiel zu Lackierzwecken, verwendet werden, ohne dass die UV-Strahler 38 verschmutzen und Gase aus dem Rauminneren 32 der Trocknungsanlage 10 in den Turm 24 eindringen. Außerdem werden die UV-Strahler 38 von der Klappe 30 gegen mechanische Beschädigung geschützt.The flap 30 is dimensioned so that it completely covers in its closed position, that is, when the UV lamps 38 are not in use, as shown in FIG. The flap 30 is in this position, no drying process can take place, however, the drying unit 10 can be used for other purposes, for example for painting purposes, without the UV lamps pollute 38 and gases from the interior space 32 of the drying system 10 in the Penetrate tower 24. In addition, the UV lamps 38 are protected by the flap 30 against mechanical damage.

Die Figuren 7 und 9 zeigen noch Luftleitbleche 42, mit welchen die über den Stutzen 28 zugeführte Kühlluft hinter der Vorderfront des Turmes 24 geführt beziehungsweise an die Rückseite der UV-Strahler 38 herangeführt wird.FIGS. 7 and 9 also show air guide plates 42 with which the cooling air supplied via the connection 28 is guided behind the front of the tower 24 or brought to the rear of the UV emitter 38.

Claims (10)

Trocknungsanlage (10) mit integrierter oder separater Lackieranlage, mit einer eine Einfahrt (12) aufweisenden Stirnseitenwand (14), einer gegenüberliegenden Stirnseitenwand (16) und zwei Längsseitenwänden (18 und 20) sowie als UV-Strahler (38) ausgebildete Trocknungslampen, die in wenigstens einer, insbesondere in den vier Seitenkanten (22) der Seitenwände (14 bis 20), angeordnet sind, dadurch gekennzeichnet, dass in der Seitenkante (22) ein Turm (24) angeordnet ist und im Turm (24) ein oder mehrere UV-Strahler (38) vorgesehen sind und der Turm (24) an seiner zum Rauminneren (32) weisenden Seite eine Abdeckung, insbesondere eine Klappe (30) aufweist und die Abdeckung mit einer an der Seite des Turms anliegenden Abdichtung versehen ist.Drying installation (10) with integrated or separate painting installation, with a front wall (14) having an entrance (12), an opposite end wall (16) and two longitudinal side walls (18 and 20) and drying lamps designed as UV lamps (38) at least one, in particular in the four side edges (22) of the side walls (14 to 20) are arranged, characterized in that in the side edge (22) a tower (24) is arranged and in the tower (24) one or more UV Spotlights (38) are provided and the tower (24) at its interior to the room (32) side facing a cover, in particular a flap (30) and the cover is provided with a voltage applied to the side of the tower seal. Trocknungsanlage nach Anspruch 1, dadurch gekennzeichnet, dass der Innenraum des Turmes (24) eine pneumatische Überdruckeinrichtung aufweist.Drying plant according to claim 1, characterized in that the interior of the tower (24) has a pneumatic overpressure device. Trocknungsanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass bei mehreren im Turm (24) vorgesehenen UV-Strahlern (38) diese über- und/oder untereinander angeordnet sind.Drying installation according to one of the preceding claims, characterized in that in the case of a plurality of UV lamps (38) provided in the tower (24), these are arranged above and / or below one another. Trocknungsanlage nach Anspruch 3, dadurch gekennzeichnet, dass die UV-Strahler (38) mit Abstand zueinander stehen.Drying plant according to claim 3, characterized in that the UV radiators (38) are at a distance from each other. Trocknungsanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckung ein- oder mehrteilig ist und um eine vertikale Achse (34) verschwenkbar ist.Drying installation according to one of the preceding claims, characterized in that the cover is one or more parts and about a vertical axis (34) is pivotable. Trocknungsanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Abdeckung, insbesondere die Klappe (30) manuell oder maschinell, insbesondere elektrisch, pneumatisch oder hydraulisch verschwenkbar ist.Drying installation according to one of the preceding claims, characterized in that the cover, in particular the flap (30) is manually or mechanically, in particular electrically, pneumatically or hydraulically pivoted. Trocknungsanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Turm (24) eine Belüftungseinrichtung (40), insbesondere zur Hinterlüftung der UV-Strahler (38) aufweist.Drying installation according to one of the preceding claims, characterized in that the tower (24) has a ventilation device (40), in particular for ventilating the UV radiator (38). Trocknungsanlage nach Anspruch 7, dadurch gekennzeichnet, dass ein Temperatursensor für den Betrieb der Belüftungseinrichtung (40) im Turm (24) vorgesehen ist.Drying plant according to claim 7, characterized in that a temperature sensor for the operation of the aeration device (40) in the tower (24) is provided. Trocknungsanlage nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die UV-Strahler (38) mit Umlenkspiegeln versehen sind.Drying plant according to one of the preceding claims, characterized in that the UV radiators (38) are provided with deflecting mirrors. Trocknungsanlage nach einem der vorhergehenden Ansprüche oder nach Anspruch 9, dadurch gekennzeichnet, dass die UV-Strahler (38) und/oder die Umlenkspiegel horizontal und/oder vertikal verschwenkbar und/oder höhenverstellbar im Turm (24) angeordnet sind.Drying installation according to one of the preceding claims or according to claim 9, characterized in that the UV lamps (38) and / or the deflection mirrors are arranged horizontally and / or vertically pivotable and / or height-adjustable in the tower (24).
EP06012202A 2005-07-14 2006-06-14 Drying plant Ceased EP1744115A3 (en)

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