EP2676092B1 - Device for controllling the temperature of vehicle bodies - Google Patents

Device for controllling the temperature of vehicle bodies Download PDF

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Publication number
EP2676092B1
EP2676092B1 EP20120700087 EP12700087A EP2676092B1 EP 2676092 B1 EP2676092 B1 EP 2676092B1 EP 20120700087 EP20120700087 EP 20120700087 EP 12700087 A EP12700087 A EP 12700087A EP 2676092 B1 EP2676092 B1 EP 2676092B1
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EP
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Prior art keywords
vehicle body
nozzle
nozzles
wall
temperature control
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EP20120700087
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German (de)
French (fr)
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EP2676092A1 (en
Inventor
Erwin Hihn
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Eisenmann SE
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Eisenmann SE
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
    • F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
    • F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
    • F26B15/14—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by trays or racks or receptacles, which may be connected to endless chains or belts
    • 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 device for tempering vehicle bodies according to the preamble of patent claim 1.
  • the term "tempering" of a vehicle body refers to the bringing about of a specific temperature of the vehicle body which it does not initially possess. It may be a temperature increase or a temperature decrease.
  • a "tempered air” is understood to mean that which has the temperature required for temperature control of the vehicle body.
  • the following description of the invention in detail is based on the example of such a dryer.
  • drying refers to all processes in which the coating, in particular a lacquer, of the vehicle body can be cured, be this by expelling solvent or by crosslinking the coating substance.
  • dryer designed devices of the type mentioned usually have both sides of the tempering tunnels designated in this case as drying tunnels a pressure chamber.
  • the nozzles which are housed in the walls separating the pressure chambers from the drying tunnel have different and often unadjusted distances from the areas of the vehicle body which they are to apply to them.
  • vehicle bodies have different masses in different areas; In particular, the lowest area, the threshold area or the floor area, is heavily massed. Accordingly, the heat capacities in the different vehicle body areas are also different and the times necessary to bring these areas to the temperature required for drying also differ.
  • the residence time of the vehicle body to be dried in the dryer must therefore be adapted to the longest time that the worst, most massively afflicted area of the vehicle body needs to dry.
  • a device of the type mentioned is, for example, from the US 2009/0017408 A1 known. There, in addition to heated air and radiant heat is still used for drying by the hot air, before it is directed through nozzles on the body to be dried, through cavities, which in turn then emit radiant heat.
  • Object of the present invention is to provide a device of the type mentioned in such a way that certain work, such as cleaning and maintenance, are easily possible on the device or the transport system and a conversion of the device.
  • the different areas must be subjected to different intensities of tempered air to a uniform temperature of the vehicle body in order to take into account the different local heat capacities.
  • the lower portion of the vehicle body, the sill area or the floor group requires special treatment with tempered air.
  • This is done with a special nozzle device, which is brought to one side particularly close to this lower region of the vehicle body and, in order to comply with the smallest possible distances, is also adapted in geometry to the geometry of the lower vehicle body area.
  • the massive lower region of the vehicle body comes to the desired temperature at about the same time as the higher-lying, less massive regions.
  • the temperature of the vehicle body is done overall faster and without unduly high or low local temperatures, which could damage the materials of the vehicle body. moreover This is an energy saving when used as a dryer connected, as with lower temperatures of the hot air could be worked.
  • the nozzle device is releasably attached to at least one opening in the wall between the pressure chamber and the tempering tunnel. It can be quickly removed if necessary. This is important because it extends relatively far into the tempering tunnel and could be in certain work such as cleaning and maintenance, and also on the transport system, outside of the actual tempering in the way.
  • the at least one opening to which the nozzle means is fixed is designed in the same way as the openings in which the other nozzles are fixed in the same wall.
  • the nozzle device can be retrofitted by removing one or more of the normal nozzles in the lower region of the wall between the pressure chamber and tempering tunnel in a conventional device and instead fixing the nozzle device according to the invention to this or these openings.
  • a retrofitting of an inventively designed device in a conventional device easily possible.
  • the nozzle device surrounds the vehicle body below, so is not only guided along the side surface of the lower vehicle body portion but formed down around the lower portion and still extends a certain distance under the vehicle body. Undercuts in the geometry of the nozzle body are possible.
  • the distance between the vehicle body facing side of the nozzle device and the vehicle body is suitably about 20 cm. At this distance, a good and fast tempering result is achieved with conventional materials, but without damaging these materials. In specially directed against the bottom of the vehicle body nozzles, the Absrand can also be smaller, in particular about 10 cm.
  • the nozzle body can be exchangeable. In this way, the device can be easily adapted to different vehicle bodies with different geometries in the lower area.
  • a dryer is schematically and collectively designated by the reference numeral 1, which serves as an example of a tempering. It comprises in a known manner a housing 2 whose interior is divided by two longitudinally extending walls 3, 4 in two lateral pressure chambers 5, 6 and a lying in the middle as a drying tunnel tempering 7.
  • a conveyor system 8 extends through the drying tunnel 7 and conveys the freshly coated vehicle bodies 9 to be dried, perpendicular to the drawing plane, through the drying tunnel 7.
  • At the inlet and at the outlet of the drying tunnel 7 are located in a known manner an inlet or an outlet lock, which are not shown and need not be described in detail.
  • nozzles 10, 11 are provided, which connect the pressure chambers 5, 6 with the drying tunnel 7.
  • These nozzles 10, 11 have conventional construction and need not be described in detail. They are called “normal” nozzles here. It is sufficient to know that the orientation of its axis within the walls 3, 4 is adjustable as needed.
  • nozzle devices 12, 13 are arranged, which also connect the pressure chambers 6 with the drying tunnel 7 and whose construction is now explained in more detail with reference to the nozzle device 12.
  • the nozzle device 13 basically has the same structure.
  • the nozzle device 12 has a middle, obliquely against both the vertical and the horizontal hired nozzle body 14, in which the vehicle body 9 side facing a plurality of individual nozzle openings 15 is provided.
  • This side of the nozzle body 14 is adapted at least approximately to the sill area 16 of the vehicle body 9 and engages around this sill area 16 below, where even an undercut can be seen.
  • the two opposite ends of the nozzle body 14 are approximately in the installed position horizontally extending connection channels 17, 18 connected to openings 19, 20 in the wall 3, which serve in conventional dryers receiving normal nozzles 10 and have for this purpose kugelkalottenförmige side surfaces.
  • the ends of the connection channels 17, 18 are each provided with spherical cap-shaped clamping plates 21, 22. In this way, the entire nozzle device 12 can be clamped by inserting the clamping plates 21, 22 in the openings 19, 20 on the wall 3.
  • the vehicle bodies 9 are located on their transport through the drying tunnel 7 by means of the conveyor system 8 on skids 23, as is well known in itself and have two running parallel to the direction of skids 24, 25. At these runners 24, 25, the transport system 8 is used for locomotion of the vehicle body connected to the skid 22. They are protected by a shielding plate 40 against the direct application of hot air.
  • the two pressure chambers 5, 6 are connected in known manner with a source of hot pressurized air; generally located in the lower part of the drying tunnel 7 are not shown suction, through which the air can be removed from the drying tunnel 7 again.
  • the dryer 1 is operated in recirculation mode; This means that the air extracted from the drying tunnel 7, cleaned and then reheated, is recirculated to the pressure chambers 5, 6 by means of a ventilator.
  • the vehicle bodies 9 are subjected to either continuous movement or at standstill via the normal nozzles 10, 11 in the lateral and upper regions with hot air. This will be dried the relatively less mass-containing lateral and upper portions of the vehicle body 9.
  • the hot air coming from the pressure chambers 5, 6 is relatively close to the surface of the vehicle body 9 by means of the nozzle devices 12, 13. in particular of the sill area 12, introduced, which is applied in this way there particularly intense hot air.
  • a favorable distance is about 20 cm, for the body floor acting nozzle openings 15 also only 10 cm. Due to the proximity between the nozzle openings 15 of the nozzle devices 12, 13 and the corresponding surface regions of the vehicle bodies 9, it is also possible to sufficiently heat the massive subregion of the vehicle body 9 in a time for drying which corresponds approximately to the time within which the normal nozzles 10 , 11 are capable of drying the upper portion of the vehicle body 9. In this way, the cycle times during drying of the vehicle body 9 can be reduced and overheating, which could not be excluded in the conventional dryer in the upper region of the vehicle body 9, avoided.
  • FIG. 3 is in a sectional view, which is the FIG. 2 corresponds, a variant of a dryer 101 shown in fragmentary form.
  • Corresponding parts in FIG. 3 are denoted by the same reference numerals as in FIG. 2 , but increased by 100, marked.
  • Recognition in FIG. 3 are the longitudinal wall 103, which separates the pressure chamber 105 from the drying tunnel 107, and a normal nozzle 110.
  • This nozzle 110 is located in an opening 119 of the wall 103, which in the embodiment of figure 2 the inclusion of a connection channel 17 of the nozzle device 12 has served.
  • FIG. 3 is in a sectional view, which is the FIG. 2 corresponds, a variant of a dryer 101 shown in fragmentary form.
  • Corresponding parts in FIG. 3 are denoted by the same reference numerals as in FIG. 2 , but increased by 100, marked.
  • Recognition in FIG. 3 are the longitudinal wall 103, which separates the pressure chamber 105 from the drying tunnel 107, and a normal
  • the nozzle device 112 has only one connection channel 118, at the ends of which two clamping plates 121, 122 are found, which are clamped in the opening 120 of the wall 103. Also, the nozzle body 114 of the nozzle device 112 has in the vehicle body 109 side facing a plurality of nozzle openings 115; this page is adapted in its contour of the contour of the sill area 116 of the body 109 to be dried.
  • the embodiment of the nozzle device 112, which in FIG. 3 is slightly cheaper than that of the FIG. 2 and is mainly used where the need for hot air to dry the sill area 116 of the vehicle body 109 is not so great.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Drying Of Solid Materials (AREA)
  • Coating Apparatus (AREA)
  • Nozzles (AREA)

Description

Die Erfindung betrifft eine Vorrichtung zum Temperieren von Fahrzeugkarosserien nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a device for tempering vehicle bodies according to the preamble of patent claim 1.

Wenn vorliegend von "Temperieren" einer Fahrzeugkarosserie gesprochen wird, so ist hiermit die Herbeiführung einer bestimmten Temperatur der Fahrzeugkarosserie gemeint, die sie zunächst noch nicht besitzt. Es kann sich um eine Temperaturerhöhung oder eine Temperaturverringerung handeln. Unter einer "temperierten Luft" wird eine solche verstanden, welche die zur Temperierung der Fahrzeugkarosserie erforderliche Temperatur besitzt.In the present case, the term "tempering" of a vehicle body refers to the bringing about of a specific temperature of the vehicle body which it does not initially possess. It may be a temperature increase or a temperature decrease. A "tempered air" is understood to mean that which has the temperature required for temperature control of the vehicle body.

Ein in der Automobilindustrie häufiger Fall des Temperierens, nämlich des Erwärmens, von Fahrzeugkarosserien ist der Vorgang des Trocknens der Beschichtung einer Fahrzeugkarosserie, handle es sich dabei nun um einen Lack oder einen Klebstoff oder dergleichen. Die nachfolgende Beschreibung der Erfindung im Detail erfolgt am Beispiel eines solchen Trockners.A common case of tempering in the automotive industry, namely the heating of vehicle bodies, is the process of drying the coating of a vehicle body, be it a paint or an adhesive or the like. The following description of the invention in detail is based on the example of such a dryer.

Wenn vorliegend von "Trocknen" die Rede ist, so sind damit alle Vorgänge gemeint, bei denen die Beschichtung, insbesondere ein Lack, der Fahrzeugkarosserie zum Aushärten gebracht werden kann, sei dies nun durch Austreiben von Lösemittel oder durch Vernetzung der Beschichtungssubstanz.In the present case, the term "drying" refers to all processes in which the coating, in particular a lacquer, of the vehicle body can be cured, be this by expelling solvent or by crosslinking the coating substance.

Bekannte als Trockner ausgestaltete Vorrichtungen der eingangs genannten Art besitzen üblicherweise beidseits des in diesem Falle als Trockentunnels bezeichneten Temperiertunnels einen Druckraum. Die Düsen, die in den die Druckräume von dem Trockentunnel trennenden Wänden untergebracht sind, besitzen von den Bereichen der Fahrzeugkarosserie, die sie beaufschlagen sollen, unterschiedliche und häufig an den Trockenbedarf unangepasste Abstände. Fahrzeugkarosserien weisen aber in unterschiedlichen Bereichen unterschiedliche Massen auf; insbesondere ist der unterste Bereich, der Schwellerbereich bzw. die Bodengruppe, stark massebehaftet. Dementsprechend sind auch die Wärmekapazitäten in den unterschiedlichen Fahrzeugkarosserie-Bereichen verschieden und die Zeiten, die notwendig sind, um diese Bereiche auf die zum Trocknen erforderliche Temperatur zu bringen, unterscheiden sich ebenfalls. Die Verweildauer der zu trocknenden Fahrzeugkarosserie im Trockner muss deshalb an die längste Zeit angepasst werden, die der ungünstigste, am stärksten mit Masse behaftete Bereich der Fahrzeugkarosserie zum Trocknen braucht. Hierdurch werden nicht nur die Taktzeiten des Trockners verlängert; darüber hinaus kann in denjenigen Bereichen der Fahrzeugkarosserie, die schneller trocknen, eine Überhitzung stattfinden. Dies kann sich besonders dort nachteilig auswirken, wo unterschiedliche, auch temperaturempfindliche Materialien in der Fahrzeugkarosserie verbaut sind und/oder Verklebungen vorgenommen worden sind.Known as dryer designed devices of the type mentioned usually have both sides of the tempering tunnels designated in this case as drying tunnels a pressure chamber. The nozzles which are housed in the walls separating the pressure chambers from the drying tunnel have different and often unadjusted distances from the areas of the vehicle body which they are to apply to them. However, vehicle bodies have different masses in different areas; In particular, the lowest area, the threshold area or the floor area, is heavily massed. Accordingly, the heat capacities in the different vehicle body areas are also different and the times necessary to bring these areas to the temperature required for drying also differ. The residence time of the vehicle body to be dried in the dryer must therefore be adapted to the longest time that the worst, most massively afflicted area of the vehicle body needs to dry. As a result, not only the cycle times of the dryer are extended; moreover, overheating may occur in those areas of the vehicle body that dry faster. This can have a disadvantageous effect especially where different, even temperature-sensitive materials are installed in the vehicle body and / or adhesions have been made.

Eine Vorrichtung der eingangs genannten Art ist beispielsweise aus der US 2009/0017408 A1 bekannt geworden. Dort wird außer erhitzter Luft auch noch noch Strahlungswärme zur Trocknung verwendet, indem die Warmluft, ehe sie durch Düsen auf die zu trocknende Karosserie gelenkt wird, durch Hohlräume geleitet wird, welche ihrerseits dann Strahlungswärme abgeben.A device of the type mentioned is, for example, from the US 2009/0017408 A1 known. There, in addition to heated air and radiant heat is still used for drying by the hot air, before it is directed through nozzles on the body to be dried, through cavities, which in turn then emit radiant heat.

Eine Vorrichtung ähnlich derjenigen der eingangs genannten Art ist in der EP 0 268 691 A1 beschrieben. Inwieweit dort die Düsen im unteren Bereich der Fahrzeugkarosserie näher an dieser sind als die übrigen Düsen, ist dieser Druckschrift jedoch nicht zweifelsfrei zu entnehmen.A device similar to that of the aforementioned Art is in the EP 0 268 691 A1 described. To what extent there are the nozzles in the lower part of the vehicle body closer to this than the other nozzles, this document is not undoubtedly refer to.

Aufgabe der vorliegenden Erfindung ist, eine Vorrichtung der eingangs genannten Art so auszugestalten, dass bestimmte Arbeiten, zum Beispiel Reinigung und Wartung, an der Vorrichtung oder dem Transportsystem sowie eine Umrüstung der Vorrichtung problemlos möglich sind.Object of the present invention is to provide a device of the type mentioned in such a way that certain work, such as cleaning and maintenance, are easily possible on the device or the transport system and a conversion of the device.

Diese Aufgabe wird erfindungsgemäß durch eine Vorrichtung mit den im Patentanspruch 1 angegebenen Merkmalen gelöst.This object is achieved by a device having the features specified in claim 1.

Im Stand der Technik ist es an sich bekannt, dass zu einer gleichmäßigen Temperierung der Fahrzeugkarosserie die unterschiedlichen Bereiche unterschiedlich intensiv mit temperierter Luft beaufschlagt werden müssen, um den unterschiedlichen örtlichen Wärmekapazitäten Rechnung zu tragen. Insbesondere der untere Bereich der Fahrzeugkarosserie, der Schwellerbereich bzw. die Bodengruppe, bedarf einer besonderen Beaufschlagung mit temperierter Luft. Diese geschieht mit einer speziellen Düseneinrichtung, die mit einer Seite besonders nahe an diesen unteren Bereich der Fahrzeugkarosserie herangeführt wird und, um möglichst kleine Abstände einhalten zu können, auch in ihrer Geometrie der Geometrie des unteren Fahrzeugkarosserie-Bereiches angepasst ist. Auf diese Weise lässt sich erreichen, dass der massereiche untere Bereich der Fahrzeugkarosserie etwa in derselben Zeit auf die gewünschte Temperatur kommt wie die weiter oben liegenden, weniger massebehafteten Bereiche. Die Temperierung der Fahrzeugkarosserie geschieht insgesamt schneller und ohne unzulässig hohe oder niedrige lokale Temperaturen, welche den Materialien der Fahrzeugkarosserie schaden könnten. Zudem ist dadurch eine Energieeinsparung beim Einsatz als Trockner verbunden, da mit niedrigeren Temperaturen der Heissluft gearbeitet wrden kann.In the prior art, it is known per se that the different areas must be subjected to different intensities of tempered air to a uniform temperature of the vehicle body in order to take into account the different local heat capacities. In particular, the lower portion of the vehicle body, the sill area or the floor group, requires special treatment with tempered air. This is done with a special nozzle device, which is brought to one side particularly close to this lower region of the vehicle body and, in order to comply with the smallest possible distances, is also adapted in geometry to the geometry of the lower vehicle body area. In this way it can be achieved that the massive lower region of the vehicle body comes to the desired temperature at about the same time as the higher-lying, less massive regions. The temperature of the vehicle body is done overall faster and without unduly high or low local temperatures, which could damage the materials of the vehicle body. moreover This is an energy saving when used as a dryer connected, as with lower temperatures of the hot air could be worked.

Erfindungsgemäß ist die Düseneinrichtung lösbar an mindestens einer Öffnung in der Wand zwischen dem Druckraum und dem Temperiertunnel befestigt. Sie kann auf diese Weise bei Bedarf schnell entfernt wrden. Dies ist deshalb wichtig, weil sie verhältnismäßig weit in den Temperiertunnel hinein reicht und so bei bestimmten Arbeiten wie Reinigung und Wartung, auch am Transportsystem, außerhalb des eigentlichen Temperierbetriebes im Wege sein könnte.According to the invention, the nozzle device is releasably attached to at least one opening in the wall between the pressure chamber and the tempering tunnel. It can be quickly removed if necessary. This is important because it extends relatively far into the tempering tunnel and could be in certain work such as cleaning and maintenance, and also on the transport system, outside of the actual tempering in the way.

Erfindungsgemäß ist außerdem die mindestens eine Öffnung, an welcher die Düseneinrichtung befestigt ist, in derseben Weise ausgestaltet wie die Öffnungen, in welchen die anderen Düsen in derselben Wand befestigt sind. So kann die Düseneinrichtung beispielsweise nachgerüstet werden, indem bei einer herkömmlichen Vorrichtung eine oder mehrere der normalen Düsen im unteren Bereich der Wand zwischen Druckraum und Temperiertunnel entfernt und statt dessen an dieser oder diesen Öffnungen die erfindungsgemäße Düseneinrichtung befestigt wird. Umgekehrt ist selbstverständlich auch eine Rückrüstung einer erfindungsgemäß ausgestalteten Vorrichtung in eine herkömmliche Vorrichtung problemlos möglich.According to the invention, moreover, the at least one opening to which the nozzle means is fixed is designed in the same way as the openings in which the other nozzles are fixed in the same wall. For example, the nozzle device can be retrofitted by removing one or more of the normal nozzles in the lower region of the wall between the pressure chamber and tempering tunnel in a conventional device and instead fixing the nozzle device according to the invention to this or these openings. Conversely, of course, a retrofitting of an inventively designed device in a conventional device easily possible.

Zweckmäßigerweise umgreift die Düseneinrichtung die Fahrzeugkarosserie unten, ist also nicht nur an der Seitenfläche des unteren Fahrzeugkarosserie-Bereichs entlang geführt sondern unten um den unteren Bereich umgeformt und reicht noch eine gewisse Strecke unter die Fahrzeugkarosserie. Dabei sind auch Hinterschneidungen in der Geometrie des Düsenkörpers möglich.Conveniently, the nozzle device surrounds the vehicle body below, so is not only guided along the side surface of the lower vehicle body portion but formed down around the lower portion and still extends a certain distance under the vehicle body. Undercuts in the geometry of the nozzle body are possible.

Der Abstand zwischen der der Fahrzeugkarosserie zugewandten Seite der Düseneinrichtung und der Fahrzeugkarosserie beträgt zweckmäßigerweise etwa 20 cm. Bei diesem Abstand wird bei üblichen Materialen ein gutes und schnelles Temperierergebnis erzielt, ohne diesen Materialien jedoch zu schaden. Bei speziell gegen den Boden der Fahrzeugkarosserie gerichteten Düsen kann der Absrand auch kleiner sein, insbesondere etwa 10 cm betragen.The distance between the vehicle body facing side of the nozzle device and the vehicle body is suitably about 20 cm. At this distance, a good and fast tempering result is achieved with conventional materials, but without damaging these materials. In specially directed against the bottom of the vehicle body nozzles, the Absrand can also be smaller, in particular about 10 cm.

Der Düsenkörper kann austauschbar sein. Auf diese Weise kann die Vorrichtung leicht an unterschiedliche Fahrzeugkarosserien mir unterschiedlichen Geometrien im unteren Bereich angepasst werden.The nozzle body can be exchangeable. In this way, the device can be easily adapted to different vehicle bodies with different geometries in the lower area.

Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnung näher erläutert; es zeigen

Figur 1
einen vertikalen Schnitt durch einen Trockner für Fahrzeugkarosserien;
Figur 2
vergrößert ein Detail aus Figur 1;
Figur 3
einen Schnitt, ähnlich der Figur 2, durch eine abgewandelte Ausführungsform eines Trockners;
Embodiments of the invention will be explained in more detail with reference to the drawing; show it
FIG. 1
a vertical section through a dryer for vehicle bodies;
FIG. 2
enlarges a detail FIG. 1 ;
FIG. 3
a cut, similar to the one FIG. 2 by a modified embodiment of a dryer;

Zunächst wird auf die Figuren 1 und 2 Bezug genommen. Dort ist schematisch und insgesamt mit dem Bezugszeichen 1 gekennzeichnet ein Trockner dargestellt, der als Beispiel für eine Temperiervorrichtung dient. Er umfasst in bekannter Weise ein Gehäuse 2, dessen Innenraum durch zwei in Längsrichtung verlaufende Wände 3, 4 in zwei seitliche Druckräume 5, 6 und einen in der Mitte liegenden als Trockentunnel dienenden Temperiertunnel 7 unterteilt ist.First, on the FIGS. 1 and 2 Referenced. There, a dryer is schematically and collectively designated by the reference numeral 1, which serves as an example of a tempering. It comprises in a known manner a housing 2 whose interior is divided by two longitudinally extending walls 3, 4 in two lateral pressure chambers 5, 6 and a lying in the middle as a drying tunnel tempering 7.

Durch den Trockentunnel 7 hindurch erstreckt sich ein Fördersystem 8, welches die zu trocknenden, frisch beschichteten Fahrzeugkarosserien 9 senkrecht zur Zeichenebene durch den Trockentunnel 7 hindurch befördert. Am Einlass sowie am Auslass des Trockentunnels 7 befinden sich in bekannter Weise eine Einlass- bzw. eine Auslassschleuse, die nicht dargestellt sind und nicht näher beschrieben zu werden brauchen.A conveyor system 8 extends through the drying tunnel 7 and conveys the freshly coated vehicle bodies 9 to be dried, perpendicular to the drawing plane, through the drying tunnel 7. At the inlet and at the outlet of the drying tunnel 7 are located in a known manner an inlet or an outlet lock, which are not shown and need not be described in detail.

In den Wänden 3, 4 ist eine Mehrzahl von Düsen 10, 11 vorgesehen, welche die Druckräume 5, 6 mit dem Trockentunnel 7 verbinden. Diese Düsen 10, 11 besitzen herkömmliche Bauweise und brauchen nicht näher beschrieben zu werden. Sie werden hier "normale" Düsen genannt. Es reicht zu wissen, dass die Orientierung ihrer Achse innerhalb der Wände 3, 4 nach Bedarf einstellbar ist.In the walls 3, 4, a plurality of nozzles 10, 11 are provided, which connect the pressure chambers 5, 6 with the drying tunnel 7. These nozzles 10, 11 have conventional construction and need not be described in detail. They are called "normal" nozzles here. It is sufficient to know that the orientation of its axis within the walls 3, 4 is adjustable as needed.

Im unteren Bereich der Wände 3, 4 sind komplexere Düseneinrichtungen 12, 13 angeordnet, die ebenfalls die Druckräume 6 mit dem Trockentunnel 7 verbinden und deren Bauweise nunmehr anhand der Düseneinrichtung 12 näher erläutert wird. Die Düseneinrichtung 13 besitzt grundsätzlich denselben Aufbau.In the lower region of the walls 3, 4 more complex nozzle devices 12, 13 are arranged, which also connect the pressure chambers 6 with the drying tunnel 7 and whose construction is now explained in more detail with reference to the nozzle device 12. The nozzle device 13 basically has the same structure.

Wie sich insbesondere der Figur 2 entnehmen lässt, besitzt die Düseneinrichtung 12 einen mittleren, schräg sowohl gegen die Vertikale als auch die Horizontale angestellten Düsenkörper 14, in dessen der Fahrzeugkarosserie 9 zugewandter Seite eine Vielzahl einzelner Düsenöffnungen 15 vorgesehen ist. Diese Seite des Düsenkörpers 14 ist zumindest annähernd an den Schwellerbereich 16 der Fahrzeugkarosserie 9 formmäßig angepasst und umgreift diesen Schwellerbereich 16 unten, wobei sogar eine Hinterschneidung erkennbar ist. Die beiden gegenüberliegenden Enden des Düsenkörpers 14 sind durch in der Einbaulage etwa horizontal verlaufende Anschlusskanäle 17, 18 mit Öffnungen 19, 20 in der Wand 3 verbunden, die bei herkömmlichen Trocknern der Aufnahme von normalen Düsen 10 dienen und zu diesem Zwecke kugelkalottenförmige Seitenflächen besitzen. Die Enden der Anschlusskanäle 17, 18 sind jeweils mit kugelkalottenförmigen Klemmblechen 21, 22 versehen. Auf diese Weise kann die gesamte Düseneinrichtung 12 durch Einführen der Klemmbleche 21, 22 in die Öffnungen 19, 20 an der Wand 3 festgeklemmt werden.How, in particular, the FIG. 2 can be seen, the nozzle device 12 has a middle, obliquely against both the vertical and the horizontal hired nozzle body 14, in which the vehicle body 9 side facing a plurality of individual nozzle openings 15 is provided. This side of the nozzle body 14 is adapted at least approximately to the sill area 16 of the vehicle body 9 and engages around this sill area 16 below, where even an undercut can be seen. The two opposite ends of the nozzle body 14 are approximately in the installed position horizontally extending connection channels 17, 18 connected to openings 19, 20 in the wall 3, which serve in conventional dryers receiving normal nozzles 10 and have for this purpose kugelkalottenförmige side surfaces. The ends of the connection channels 17, 18 are each provided with spherical cap-shaped clamping plates 21, 22. In this way, the entire nozzle device 12 can be clamped by inserting the clamping plates 21, 22 in the openings 19, 20 on the wall 3.

Die Fahrzeugkarosserien 9 befinden sich bei ihrem Transport durch den Trockentunnel 7 mittels des Fördersystems 8 auf Skids 23, wie dies an und für sich bekannt ist und die zwei parallel zur Förderrichtung verlaufende Kufen 24, 25 besitzen. An diesen Kufen 24, 25 setzt das Transportsystem 8 zur Fortbewegung der mit dem Skid 22 verbundenen Fahrzeugkarosserie an. Sie sind durch ein Abschirmblech 40 gegen die direkte Beaufschlagung mit Heißluft geschützt.The vehicle bodies 9 are located on their transport through the drying tunnel 7 by means of the conveyor system 8 on skids 23, as is well known in itself and have two running parallel to the direction of skids 24, 25. At these runners 24, 25, the transport system 8 is used for locomotion of the vehicle body connected to the skid 22. They are protected by a shielding plate 40 against the direct application of hot air.

Die beiden Druckräume 5, 6 sind in bekannter Weise mit einer Quelle heisser unter Druck stehender Luft verbunden; im Allgemeinen im unteren Bereich des Trockentunnels 7 befinden sich nicht dargestellte Absaugöffnungen, über welche die Luft aus dem Trockentunnel 7 wieder abgeführt werden kann. Im Allgemeinen wird der Trockner 1 im Umluftbetrieb gefahren; dies bedeutet, dass die aus dem Trockentunnel 7 abgesaugte Luft, gereinigt und sodann wieder erwärmt, mit Hilfe eines Ventilators im Kreislauf zu den Druckräumen 5, 6 zurückgeführt wird.The two pressure chambers 5, 6 are connected in known manner with a source of hot pressurized air; generally located in the lower part of the drying tunnel 7 are not shown suction, through which the air can be removed from the drying tunnel 7 again. In general, the dryer 1 is operated in recirculation mode; This means that the air extracted from the drying tunnel 7, cleaned and then reheated, is recirculated to the pressure chambers 5, 6 by means of a ventilator.

Im Betrieb des Trockners 1 werden die Fahrzeugkarosserien 9 entweder unter fortgesetzter Bewegung oder im Stillstand über die normalen Düsen 10, 11 im seitlichen und oberen Bereich mit Heißluft beaufschlagt. Dadurch werden die verhältnismäßig wenig massehaltigen seitlichen und oberen Bereiche der Fahrzeugkarosserie 9 getrocknet.During operation of the dryer 1, the vehicle bodies 9 are subjected to either continuous movement or at standstill via the normal nozzles 10, 11 in the lateral and upper regions with hot air. This will be dried the relatively less mass-containing lateral and upper portions of the vehicle body 9.

Im unteren Bereich der Fahrzeugkarosserie 9, insbesondere im Schwellerbereich 16, wo die Fahrzeugkarosserie 9 verhältnismäßig große Massen und damit auch Wärmekapazitäten aufweist, wird die aus den Druckräumen 5, 6 kommende Heißluft mittels der Düseneinrichtungen 12, 13 verhältnismäßig nahe an die Oberfläche der Fahrzeugkarosserie 9, insbesondere des Schwellerbereiches 12, herangeführt, die auf diese Weise dort besonders intensiv mit Heißluft beaufschlagt wird. Ein günstiger Abstand ist etwa 20 cm, für den Karosserieboden beaufschlagende Düsenöffnungen 15 auch nur 10 cm. Durch die Nähe zwischen den Düsenöffnungen 15 der Düseneinrichtungen 12, 13 und den entsprechenden Oberflächenbereichen der Fahrzeugkarosserien 9 gelingt es, auch den massereichen Unterbereich der Fahrzeugkarosserie 9 in einer Zeit zum Trocknen ausreichend zu erwärmen, die etwa der Zeit entspricht, innerhalb welcher die normalen Düsen 10, 11 den oberen Bereich der Fahrzeugkarosserie 9 zu trocknen imstande sind. Auf diese Weise lassen sich die Taktzeiten beim Trocknen der Fahrzeugkarosserie 9 verringern und Überhitzungen, die beim herkömmlichen Trockner im oberen Bereich der Fahrzeugkarosserie 9 nicht auszuschließen waren, vermeiden.In the lower region of the vehicle body 9, in particular in the sill region 16, where the vehicle body 9 has relatively large masses and thus also heat capacities, the hot air coming from the pressure chambers 5, 6 is relatively close to the surface of the vehicle body 9 by means of the nozzle devices 12, 13. in particular of the sill area 12, introduced, which is applied in this way there particularly intense hot air. A favorable distance is about 20 cm, for the body floor acting nozzle openings 15 also only 10 cm. Due to the proximity between the nozzle openings 15 of the nozzle devices 12, 13 and the corresponding surface regions of the vehicle bodies 9, it is also possible to sufficiently heat the massive subregion of the vehicle body 9 in a time for drying which corresponds approximately to the time within which the normal nozzles 10 , 11 are capable of drying the upper portion of the vehicle body 9. In this way, the cycle times during drying of the vehicle body 9 can be reduced and overheating, which could not be excluded in the conventional dryer in the upper region of the vehicle body 9, avoided.

In Figur 3 ist in einer Schnittansicht, welche der Figur 2 entspricht, eine Variante eines Trockners 101 ausschnittsweise dargestellt. Entsprechende Teile in Figur 3 sind mit denselben Bezugszeichen wie in Figur 2, jedoch um 100 erhöht, gekennzeichnet. Wiederzuerkennen in Figur 3 sind die Längswand 103, welche den Druckraum 105 von dem Trockentunnel 107 trennt, sowie eine normale Düse 110. Diese Düse 110 befindet sich in einer Öffnung 119 der Wand 103, die beim Ausführungsbeispiel der Figur 2 der Aufnahme des einen Anschlusskanals 17 der Düseneinrichtung 12 gedient hat. Beim Ausführungsbeispiel der Figur 3 besitzt die Düseneinrichtung 112 nur einen Anschlusskanal 118, an dessen Enden sich zwei Klemmbleche 121, 122 finden, die in der Öffnung 120 der Wand 103 festgeklemmt sind. Auch der Düsenkörper 114 der Düseneinrichtung 112 weist in der der Fahrzeugkarosserie 109 zugewandten Seite eine Vielzahl von Düsenöffnungen 115 auf; diese Seite ist in ihrer Kontur der Kontur des Schwellerbereiches 116 der zu trocknenden Karosserie 109 angepasst. Die Ausführungsform der Düseneinrichtung 112, die in Figur 3 dargestellt ist, ist etwas kostengünstiger als diejenige der Figur 2 und wird hauptsächlich dort eingesetzt, wo der Bedarf an Heißluft zum Trocknen des Schwellerbereiches 116 der Fahrzeugkarosserie 109 nicht so groß ist.In FIG. 3 is in a sectional view, which is the FIG. 2 corresponds, a variant of a dryer 101 shown in fragmentary form. Corresponding parts in FIG. 3 are denoted by the same reference numerals as in FIG. 2 , but increased by 100, marked. Recognition in FIG. 3 are the longitudinal wall 103, which separates the pressure chamber 105 from the drying tunnel 107, and a normal nozzle 110. This nozzle 110 is located in an opening 119 of the wall 103, which in the embodiment of figure 2 the inclusion of a connection channel 17 of the nozzle device 12 has served. In the embodiment of FIG. 3 The nozzle device 112 has only one connection channel 118, at the ends of which two clamping plates 121, 122 are found, which are clamped in the opening 120 of the wall 103. Also, the nozzle body 114 of the nozzle device 112 has in the vehicle body 109 side facing a plurality of nozzle openings 115; this page is adapted in its contour of the contour of the sill area 116 of the body 109 to be dried. The embodiment of the nozzle device 112, which in FIG. 3 is slightly cheaper than that of the FIG. 2 and is mainly used where the need for hot air to dry the sill area 116 of the vehicle body 109 is not so great.

Claims (6)

  1. A device for controlling the temperature of vehicle bodies (9, 109) having:
    a) a housing (2, 102);
    b) a temperature control tunnel (7, 107) for receiving the vehicle bodies (9, 109), which is accommodated in the housing (2, 102);
    c) at least one pressure chamber (5, 6, 105) which is accommodated in the housing (2, 102) and separated from the temperature control tunnel (7, 107) by a wall (3, 4; 103);
    d) a plurality of nozzles (10, 11; 110) in the wall (3, 4; 103);
    e) an air temperature control device, which introduces temperature controlled air into the pressure chamber (5, 6, 105) in such a way that it can flow into the temperature control tunnel (7, 107) through the nozzles (10, 11; 110) and act on the vehicle body (9, 109) located there;
    wherein
    f) at least one nozzle device (12, 13; 112) is provided, which has a nozzle body (14; 114) whereof the side facing the vehicle body (9, 109) is provided with a plurality of nozzle orifices (15; 115) and at least roughly follows the geometry of the lower region of the vehicle body (9; 109) at a spacing which is smaller than the spacing of the other nozzles (10, 11; 110) arranged in the same wall (3, 4; 103) to the vehicle body (9; 109);
    characterized in that
    g) the nozzle device (12; 112) is detachably mounted on at least one orifice (19, 20; 120) in the wall (3; 103) between the pressure chamber (5; 105) and the temperature control tunnel (7; 107);
    h) the at least one orifice (19, 20; 120) on which the nozzle device (12; 112) is mounted is constructed in the same manner as the orifices in which the other nozzles (10; 110) are mounted in the same wall (3; 103).
  2. A device according to claim 1, characterized in that the nozzle device (12, 13; 112) reaches around the vehicle body (9; 109) at the bottom.
  3. A device according to claim 1 or 2, characterized in that the spacing between the side of the nozzle device (12, 13; 112) which faces the vehicle body (9; 109) and the vehicle body (9; 109) is approximately 20 cm.
  4. A device according to one of the preceding claims, characterized in that the nozzle body is replaceable.
  5. A device according to one of the preceding claims, characterized in that the nozzle orifices (15; 115) roughly follow the geometry of the door sill region (16; 116).
  6. A device according to one of the preceding claims, characterized in that it is configured for drying coated vehicle bodies (9; 109).
EP20120700087 2011-02-15 2012-01-05 Device for controllling the temperature of vehicle bodies Active EP2676092B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011011261A DE102011011261A1 (en) 2011-02-15 2011-02-15 Device for tempering vehicle bodies
PCT/EP2012/000032 WO2012110172A1 (en) 2011-02-15 2012-01-05 Device for controllling the temperature of vehicle bodies

Publications (2)

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EP2676092A1 EP2676092A1 (en) 2013-12-25
EP2676092B1 true EP2676092B1 (en) 2015-05-20

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US (1) US10060676B2 (en)
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CN (1) CN103380343B (en)
BR (1) BR112013020785A8 (en)
DE (1) DE102011011261A1 (en)
ES (1) ES2542436T3 (en)
MX (1) MX2013004998A (en)
RU (1) RU2592689C2 (en)
WO (1) WO2012110172A1 (en)

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DE102012020357B4 (en) * 2012-10-16 2014-08-14 Eisenmann Ag Device for tempering objects
CN106922169B (en) * 2014-11-20 2018-02-16 日产自动车株式会社 Coating, drying device and coating, drying method
US10443937B2 (en) * 2015-01-26 2019-10-15 Nissan Motor Co., Ltd. Paint baking oven and paint baking method
DE102015214706A1 (en) 2015-07-31 2017-02-02 Dürr Systems Ag Treatment plant and method for treating workpieces
DE102015214711A1 (en) 2015-07-31 2017-02-02 Dürr Systems Ag Treatment plant and method for treating workpieces
DE102016113062A1 (en) 2016-07-15 2018-01-18 Eisenmann Se Device, system and method for tempering workpieces
DE102016125060B4 (en) * 2016-12-21 2023-02-16 Eisenmann Gmbh Device for tempering objects
DE102018113685A1 (en) * 2018-06-08 2018-08-23 Eisenmann Se Plant for drying vehicle bodies
DE102020207717A1 (en) 2020-06-22 2021-12-23 Dürr Systems Ag Process for temperature control of vehicle bodies and temperature control system

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ES2542436T3 (en) 2015-08-05
CN103380343A (en) 2013-10-30
US20130312277A1 (en) 2013-11-28
CN103380343B (en) 2015-09-23
MX2013004998A (en) 2013-08-01
BR112013020785A2 (en) 2016-10-11
EP2676092A1 (en) 2013-12-25
DE102011011261A1 (en) 2012-08-16
WO2012110172A1 (en) 2012-08-23
BR112013020785A8 (en) 2017-10-10
US10060676B2 (en) 2018-08-28
RU2013136133A (en) 2015-02-10
RU2592689C2 (en) 2016-07-27

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