EP1749176A1 - Procede et dispositif de sechage de carrosseries de vehicules peintes - Google Patents

Procede et dispositif de sechage de carrosseries de vehicules peintes

Info

Publication number
EP1749176A1
EP1749176A1 EP05746458A EP05746458A EP1749176A1 EP 1749176 A1 EP1749176 A1 EP 1749176A1 EP 05746458 A EP05746458 A EP 05746458A EP 05746458 A EP05746458 A EP 05746458A EP 1749176 A1 EP1749176 A1 EP 1749176A1
Authority
EP
European Patent Office
Prior art keywords
inert gas
atmosphere
chamber
lock
objects
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP05746458A
Other languages
German (de)
English (en)
Other versions
EP1749176B1 (fr
Inventor
Josef Krizek
Werner Swoboda
Jürgen Hanf
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.)
Eisenmann Anlagenbau GmbH and Co KG
Original Assignee
Eisenmann Anlagenbau GmbH and Co KG
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
Application filed by Eisenmann Anlagenbau GmbH and Co KG filed Critical Eisenmann Anlagenbau GmbH and Co KG
Publication of EP1749176A1 publication Critical patent/EP1749176A1/fr
Application granted granted Critical
Publication of EP1749176B1 publication Critical patent/EP1749176B1/fr
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • F26B21/14—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects using gases or vapours other than air or steam, e.g. inert gases
    • 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
    • F26B15/02—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 the whole or part of a circle
    • F26B15/08—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 the whole or part of a circle in a vertical plane
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
    • F26B25/008—Seals, locks, e.g. gas barriers or air curtains, for drying enclosures
    • 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 method for drying objects, in particular painted vehicle bodies, in which the objects are moved through a drying zone in which they are cured in an inert gas atmosphere, and to a device for drying objects, in particular painted vehicle bodies , with a) a drying tunnel, the interior of which with a
  • varnishes have become increasingly important, which have to be cured in an inert gas atmosphere, for example under UV light, in order to prevent undesirable reactions with constituents of the normal atmosphere, in particular with oxygen.
  • the object of the present invention is to provide a method and a device of the type mentioned at the outset in which the smallest possible amounts of inert gas can be used.
  • this object is achieved in that the objects are passed through a lock zone in front of the drying zone, in which the normal atmosphere outside the drying zone and an inert gas atmosphere are stacked on top of one another due to a difference in density, the objects passing through are transferred from the normal atmosphere into the inert gas atmosphere through the lock zone under a movement having a vertical direction component.
  • the normal atmosphere outside the dryer and the inert gas atmosphere inside the dryer are no longer (only) separated from one another by gates. Rather, the normal atmosphere and the natural gas atmosphere are layered on top of each other in a special lock zone, whereby they can communicate with one another via large openings without any appreciable gas exchange taking place between the atmospheres.
  • the objects to be dried can be transferred from the normal atmosphere into the inert gas atmosphere through said large-area opening. If this is done carefully, only a relatively small swirl with a correspondingly low gas exchange takes place. The stratification of the two atmospheres is retained for a long time if there is a correspondingly large difference in density.
  • the embodiment of the method according to the invention in which the inert gas atmosphere has a greater density than the normal atmosphere is particularly expedient.
  • the inert gas atmosphere is below the normal atmosphere; Due to its relatively high density, it is particularly suitable for rinsing off residues of the normal atmosphere and other contaminants that are carried by the objects.
  • the inert gas is advantageously CO “, ie a relatively inexpensive gas.
  • the inert gas has a different density than the normal atmosphere due to its chemical constitution. Rather, it is also possible that the inert gas is brought to a temperature so low that its density is greater than is that of the normal atmosphere.
  • the inert gas atmosphere can also have a lower density than the normal atmosphere, that is to say it is layered over the normal atmosphere.
  • helium can be used as the gas, which has a low density due to its chemical constitution.
  • the second inert gas atmosphere can be see constitution have a lower density than the first inert gas atmosphere.
  • nitrogen or helium are preferably used as the second inert gas and CO “as the first inert gas.
  • the second inert gas can also be helium and the first inert gas nitrogen.
  • both inert gases are CO 2 or nitrogen.
  • the process according to the invention is expediently carried out in such a way that the objects behind the drying zone are moved through a second lock zone from the inert gas atmosphere of the drying zone into the normal atmosphere behind the drying zone, the second lock zone being similar to the first lock zone, but its atmospheres in reverse Order to be run through.
  • This second lock zone at the exit of the drying zone similarly prevents gas exchange between the atmospheres inside and outside the drying zone, as does the first lock zone at the inlet of the drying zone.
  • the device further comprises:
  • an inlet lock which is upstream of the drying tunnel and has: ca) an inlet chamber into which the objects can be introduced via an inlet opening and in which there is essentially the normal atmosphere present outside the device; cb) a second chamber, which is at a different height level than the inlet chamber, communicates with it via a large opening and is filled with an inert gas atmosphere, cc) the normal atmosphere and the inert gas atmosphere being stacked on top of one another due to different densities; '
  • the transfer mechanism can expediently comprise a swivel arm which is articulated at one end and has a holding device for the object at its other end. The object is thus moved in an arcuate path through the inlet lock with this type of transfer mechanism, that is to say in a type of movement in which a translational movement in the horizontal direction is combined with the movement in the vertical direction which leads to the transition between the inlet chamber and the second chamber. mer is required.
  • movement kinematics can be realized for the object which, on the one hand, enable a "smooth" swirl-free immersion in the inert gas atmosphere and, on the other hand, short dimensions of the inlet lock in the direction of movement.
  • the transfer mechanism can comprise at least one lifting table.
  • the vertical movement and the horizontal movement take place in succession in the inlet lock.
  • the device has an outlet lock at the end of the drying tunnel, which is similar to the inlet lock, but whose atmospheres are run through in reverse order.
  • FIG. 1 shows a detail from a painting installation with a first embodiment of a dryer according to the invention in vertical section;
  • Figure 2 shows a section through the system of Figure 1 along the line II -II there;
  • Figures 3a to 3e different positions of a vehicle body in a lock of the system of Figures 1 and 2;
  • FIG. 4 shows a detail from a painting installation with a second exemplary embodiment of a dryer according to the invention in vertical section;
  • FIG. 5 shows a section along the double-angled line V-V of FIG.
  • FIGS. 6a to 6f a third embodiment of a lock according to the invention in different positions of the vehicle body series;
  • FIGS. 1 and 2 show a detail from a painting system with a fourth embodiment of a dryer according to the invention in vertical section.
  • the painting system 1 is used for painting vehicle body series 2;
  • various treatment stations which are not shown, are connected upstream and downstream in a known manner.
  • the vehicle bodies 2 pass through the painting installation 1 in FIGS. 1 and 2 from left to right. They first enter the spray booth 3, in which they are coated with lacquer in a known manner. The exact design of this spray booth 3 and the type of application of the paint is irrelevant in the present context.
  • the vehicle bodies 2 first arrive in a pre-dryer 4, the construction of which is likewise not of particular interest and is known to the person skilled in the art.
  • the solvents are first expelled at a temperature between 40 and 150 ° C.
  • the air in the pre-dryer 4 is circulated via a heating unit 5.
  • the pre-drying can also be achieved by longer dwell times in an unheated, ventilated zone instead of a pre-dryer with evaporation and outgassing of solvents depending on the type of paint.
  • the vehicle bodies 2 are introduced from the pre-dryer 4 into the actual dryer 6, which in turn is composed of an inlet lock 7, a dryer tunnel 8 and an outlet lock 9.
  • An inert gas atmosphere is present in the dryer tunnel 8; So it is for example with CO 2, nitrogen or optionally filled with helium.
  • a temperature between 40 ° C. and 150 ° C. prevails in the dryer tunnel 8, which in the exemplary embodiment shown is achieved by circulating the inert gas via a heating unit 10.
  • vehicle bodies 2 are introduced into and removed from the inert gas atmosphere of dryer tunnel 8, as will be explained in more detail below with reference to FIGS. 3a to 3e.
  • the vehicle bodies 2 are introduced into a cooling zone 11, which in turn contains normal atmospheric air, which in turn is kept at the desired temperature with the aid of a cooling unit 12.
  • the width of the locks 7 and 9 and the inner width of the dryer tunnel 8 are as little as possible greater than the width of the vehicle bodies 2 to be treated. In this way, the amount of inert gas which is in the locks 7, 9 and needed in the dryer tunnel 8 and possibly circulated, kept as small as possible.
  • FIGS. 3a to 3b in which the construction of the lock 7 and the manner in which the vehicle bodies 2 are described from the normal atmosphere prevailing in the pre-dryer 4 into the inert atmosphere are described by way of example for the lock 7, 9 is in the dryer tunnel 8, can be introduced.
  • the design of the outlet lock 9 is basically the same, although the vehicle bodies 2 are transferred in the reverse direction from the inert gas atmosphere of the dryer tunnel 8 to the normal atmosphere of the cooling zone 11.
  • the lock 7 comprises a housing 13 with an inlet chamber 14 and an outlet chamber 15.
  • the inlet chamber 14 is at the same height as the tunnel of the pre-dryer 4; its inlet opening 16 can be closed with a roller shutter 17.
  • the outlet chamber 15 is at the same height and is aligned with the dryer tunnel 8 and communicates with the interior thereof via an outlet opening 18.
  • the outlet opening 18 can also be provided with a roller door.
  • plunge pool 19 communicates with the inlet chamber 14 and with the outlet chamber 15 via relatively large-area openings 20, 21.
  • a mounting frame 26 is articulated, which comprises a platform 27 supporting the vehicle body 2.
  • the platform 27 is provided with a conveyor system that is compatible with the conveyor system in the rest of the system.
  • the support frame 26 can be rotated by at least 360 ° and back again using a motor, not shown.
  • the same inert gas atmosphere as in the drying tunnel 8 is located in the outlet chamber 15 of the lock 7.
  • the immersion pool 19 is also filled with inert gas; however, this has a greater density than the inert gas in the outlet chamber 15 and the normal atmosphere in the inlet chamber 14, so that it essentially "underlays" both the atmosphere in the inlet chamber 14 and the inert gas atmosphere in the outlet chamber 15. Mixing of the different atmospheres via the openings 20, 21 is kept as small as possible.
  • the inert gas atmosphere in the outlet chamber 15 and in the immersion basin 19 can be achieved in different ways: on the one hand, it is possible to use different gases as inert gases.
  • the immersion pool 19 can be filled with CO 1 and the outlet chamber 15 with nitrogen. Since CO is heavier than nitrogen and also heavier than the atmosphere in the inlet chamber 15, which will be said later, the separation of the atmospheres is maintained in the desired manner.
  • FIGS. 3a to 3e show how the vehicle bodies 2 coming from the pre-dryer 4 are guided through the lock 7.
  • FIG. 3a shows how a vehicle body 2 is brought onto the support platform 27 through the inlet opening 16 of the inlet chamber 14 when the roller door 17 is open by means of a conveyor system (not shown in detail).
  • the support platform 27 is initially aligned horizontally. The conveyor system attached to it can therefore take over the vehicle body 2 directly from the conveyor system of the pre-dryer 4.
  • the roller door 17 is now closed again.
  • the vehicle body 2 can then remain in the position in FIG. 3a for a certain time in which it is flushed with inert gas supplied via nozzles (not shown).
  • the support plate 27 is pivoted together with the vehicle body 2 clockwise by approximately 90 ° until the support platform 27 and vehicle body 2 are approximately vertical.
  • the swivel arm 25 now begins to pivot counterclockwise, as a result of which the vehicle body 2 is immersed "upside down" in the cold inert gas of the immersion pool 19.
  • the pivoting movement of the pivot arm 25 can be accompanied by a more or less large pivoting movement of the mounting frame 26 about the pivot axis 28, via which it is connected to the pivot arm 25.
  • pivoting movement of the pivot arm 25 counterclockwise is continued, possibly in turn superimposed by a pivoting movement of the mounting frame 26 about the pivot axis 28.
  • the position shown in FIG. 3d is reached in which the free end of the pivot arm 25 is just in the outlet chamber 15 of the Lock 7 extends into it and the support platform 27 with the vehicle body 2 is again vertical.
  • the front part of the vehicle body 2 already protrudes into the warmer inert gas of the outlet chamber 15, while the rear is still in the colder inert gas of the immersion pool 19.
  • Dryer tunnel 8 is carried out “in stages”.
  • Step by step is understood to mean the passage of the vehicle bodies 2 through different atmospheres in which the density of the inert gas is different: there is only so much inert gas in the inlet chamber 14, as occurs through the “evaporation” of inert gas from the plunge pool 19 via the opening 20 and possibly via flushing nozzles which flush out the body 2.
  • the lowest density of inert gas is thus found in the inlet chamber 14.
  • the greatest density of the inert gas is in the plunge pool 19, so that the vehicle bodies 2 are flushed particularly intensively here.
  • outlet lock 9 serves primarily the purpose of letting as little inert gas as possible pass into the cooling zone 11, which would then be lost for the inert gas circulating in the dryer 6.
  • FIG. 1 shows a line 29 which opens into the dryer tunnel 8 from below. Via this line 29, a bypass flow of the inert gas is continuously removed from the dryer tunnel 8 and fed to a condensate separator 30.
  • the condensate separator 30 has one or more cooled plates, past which the inert gas removed from the dryer tunnel 8 flows. Condensable substances, in particular solvents, water, crack products and other substances which, during the drying process in the dryer 6, result from the coating of the vehicle body 2 emerge, condense on the surfaces of the cooled plates.
  • this precipitate is a low-viscosity liquid, it can simply run off the plates and be removed in a suitable form. In many cases, however, highly viscous precipitates occur, which have to be cleaned mechanically and / or with solvents. For this purpose, it is expedient if the plates within the condensate separator 30 are either easily accessible or easily removable.
  • the inert gas which has been cleaned in the condensate separator 30 is cooled in the described process to a temperature which corresponds approximately to the * temperature of the cool inert gas in the immersion basin 19 of the lock 7. It is therefore returned directly to the plunge pool 19 of the lock 7 via a line 31 in which a blower 32 is located. In a corresponding manner, cooled inert gas can also be introduced into the plunge pool of the lock 9.
  • the section of a painting installation 101 shown in FIGS. 4 and 5 is very similar to the exemplary embodiment described above with reference to FIGS. 1 and 2. Corresponding parts are therefore identified with the same reference number plus 100.
  • the spray booth 103, the pre-dryer 104 with the heating unit 105 and the cooling zone 111 with the cooling unit 112 are again unchanged in the exemplary embodiment in FIGS. 4 and 5.
  • a heating unit 110 In contrast to the exemplary embodiment in FIGS.
  • the drying tunnel 108 is not located at the level of the pre-dryer 104 or the cooling zone 111, but is raised slightly above this level.
  • the transfer of the vehicle bodies 102 from the pre-dryer 104 to the drying tunnel 108 and from the drying tunnel 108 to the cooling zone 111 takes place again via an inlet lock 107 and an outlet lock 109.
  • Both locks 107, 109 are essentially of the same construction, so that it will suffice below, the construction of the To explain lock 107 in more detail.
  • the lock 107 again comprises a housing 113 with an inlet chamber 114 and an outlet chamber 115.
  • the two chambers 114 and 115 communicate via a large-area opening 121 in the top of the inlet chamber and the underside of the outlet chamber 115.
  • a swivel arm 125 is at one end Housing 113 is articulated and can be pivoted back and forth by motor at an angle of approximately 90 °.
  • Housing 113 is articulated and can be pivoted back and forth by motor at an angle of approximately 90 °.
  • it At its free end, it in turn carries, via a pivot axis 128, a mounting frame 126 with a support platform 127 which can accommodate the body 102 and is in turn provided with a conveyor system which is compatible with the conveyor system in the pre-dryer 104 and in the drying tunnel 108.
  • the mounting frame 126 can be pivoted about the pivot axis 128 by at least 90 ° with the aid of a motor.
  • the inlet chamber 114 again has an inlet opening 116 which can be closed by a roller door 117.
  • the outlet chamber 115 is filled with hot inert gas, the density of which is less than the density of the normal atmosphere. sphere present in the inlet chamber 114. This means that the atmospheres in the inlet chamber 114 and the outlet chamber 115 remain largely separate from one another without a mechanical barrier.
  • the inert gas atmosphere in the outlet chamber 115 can essentially correspond to the inert gas atmosphere in the drying tunnel 108.
  • the vehicle bodies 102 are “introduced” into the drying tunnel 108 in the exemplary embodiment in FIGS. 4 and 5 as follows:
  • the swivel arm 125 assumes the approximately horizontal position shown in FIG. 4.
  • the support frame 126 is rotated relative to the swivel arm 125 so that the support platform 127 is horizontal.
  • the roller door 107 can now be opened and a vehicle body 102 can be brought onto the support platform 127 with the aid of the conveyor system.
  • the roller door 107 is closed again and the support frame 126 is rotated counterclockwise by approximately 90 °, so that the support platform 127 and the body 102 are approximately vertical. This is the position shown in Figure 4.
  • the rear of the vehicle body protrudes into a corresponding recess in the inlet chamber 114.
  • the swivel arm 125 is swiveled clockwise by approximately 90 °, possibly accompanied by a swivel movement of the mounting frame 126 about the swivel axis 128.
  • the vehicle body 102 is arched upward into the outlet chamber 115 of the lock 107 guided until finally a position is reached in which the swivel arm 125 is approximately vertical and the vehicle body 102 is approximately horizontal.
  • the vehicle body 102 can then be taken over by the conveyor system in the dryer tunnel 108.
  • a bypass flow of the inert gas is withdrawn from the inert atmosphere of the dryer tunnel 108 via a line 129 and fed to a condensate separator 130.
  • the processes taking place in this condensate separator 130 and its design are identical to the processes and design of the first exemplary embodiment.
  • the inert gas cooled in the condensate separator 130 must be brought back to the temperature prevailing in the dryer tunnel 108.
  • the inert gas leaving the condensate separator 130 is fed via a line 131, in which a blower 132 is located, to the heating unit 110 of the drying tunnel 108.
  • the rinsing processes in the exemplary embodiment in FIGS. 4 and 5 are similar to those in the exemplary embodiment in FIGS. 1 and 2. That is, that in the inlet chamber 114 of the lock 107 a pre-purging with inert gas, which may also be directed onto the vehicle body 102 via nozzles, and that the further purging "in stages" via the inert gas atmosphere prevailing in the outlet chamber 115 until entry into the inert gas atmosphere of the drying tunnel 108.
  • the purge that can be achieved may not be as effective as in the exemplary embodiment in FIGS. 1 and 2, since there is no zone in which particularly dense, because cool, inert gas is present.
  • FIGS. 6a to 6f show an alternative exemplary embodiment of a lock 107 which can be used instead of the lock 7 or the lock 9 of the exemplary embodiment in FIGS. 1 and 2.
  • the exemplary embodiment of FIGS. 6a to 6f is very similar to that of FIGS. 1 to 3; corresponding parts are therefore identified by the same reference number plus 200.
  • the pre-dryer 204 upstream of the lock 207 and part of the drying tunnel 208 downstream of the lock 207 are indicated in FIGS. 6a to 6f.
  • the lock 207 itself includes a housing 213 which is divided into an inlet chamber 214, a 1 dip tank 219 and an outlet chamber 215th
  • the inlet chamber 214 communicates with the pre-dryer 204 via an opening 216, which can be closed by a roller door 217.
  • the outlet chamber 215 communicates with the drying tunnel 208 via an opening 218, which can also have a roller door.
  • the plunge pool 219 is filled with denser, in particular colder, inert gas than the outlet chamber 215.
  • the transfer mechanism which moves the vehicle body series 202 through the lock 207 comprises two lifting tables 240, 241, with each of which a support platform 242, 243 is moved vertically up and down can.
  • the support platforms 242, 243 are in turn provided with conveyor systems which are compatible with the conveyor systems in the pre-dryer 204 or in the drying tunnel 208.
  • a hood 244 is arranged to be vertically movable, the edges of which close tightly with the walls of the inlet chamber 214.
  • the contour of the hood 244 is closely matched to the contour of the vehicle body 202.
  • the vehicle bodies 202 are moved through the lock 207 in the following manner:
  • the vehicle body 202 is pushed out of the pre-dryer 204 when the roller door 217 is open, through the inlet opening 216 into the inlet chamber 214 of the lock 207 and thereby reaches the support platform 242 of the lifting table 240, which is raised for this purpose.
  • the hood 244 is now lowered from above and brought very close to the vehicle body 202.
  • the intermediate air is largely displaced to the outside via an outlet flap 260 provided in the hood 244.
  • purging with inert gas can take place within the inlet chamber 215, which is directed against the vehicle body 202 via nozzles for this purpose.
  • the amount of inert gas required in this connection is, however, much smaller than in the two exemplary embodiments described first, since the volume to be purged is considerably reduced due to the hood 244.
  • the support platform 242 of the lifting table 240 is lowered, as shown in FIG. 6c.
  • the vehicle body 202 is immersed in the dense, cold inert gas which is located in the plunge pool 219.
  • the support platform 242 of the lifting table 240 is at the same height as the support platform 243 of the adjacent lifting table 241.
  • the vehicle body 202 can thus, as can be seen from FIG. 6d, be transferred from the lifting table 240 to the lifting table 241 .
  • the support platform 243 of the lifting table 241 is raised in such a way that the conveyor system of the support platform 243 reaches the same height as the conveyor system within the drying tunnel 208.
  • the vehicle body 202 is lifted into the outlet chamber 215 of the lock 207, in which the hot inert gas atmosphere is present (cf. FIG. 6e).
  • the vehicle body 202 is extended into the dryer tunnel 208 in the direction of the arrow in FIG. 6f.
  • the support platform 242 of the lifting table 240 is raised again.
  • the hood 2.44 also returns to its raised position so that the inlet chamber 214 of the lock 207 can be charged with a new vehicle body 202.
  • Figure 7 shows a section of a paint shop 301, which corresponds functionally almost completely to the embodiment of FIGS. 4 and 5. The main differences are as follows:
  • the swivel arm 325 is articulated on a wall of the inlet lock 307 closer to the pre-dryer 304 and at a higher point. When the vehicle body 302 is introduced into the outlet chamber 315, it is pivoted counterclockwise.
  • the end walls of the inlet lock 307 in which the inlet opening 316 and the outlet opening 318 are located, do not run vertically, but at an angle, adapted to the shape of the vehicle body 302, upwards. This further reduces the volume of the corresponding chambers 314 and 315 and thus the amount of inert gas required.

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

Abstract

L'invention concerne un procédé et un dispositif de séchage d'objets (2), notamment de carrosseries de véhicules peintes. Ces objets (2) traversent une zone de séchage (6) dans laquelle ils sont cuits dans une atmosphère inerte. L'invention vise à introduire les objets (2) dans la zone de séchage (8) en empêchant au maximum l'entrée de l'atmosphère normale venant de l'extérieur. A cet effet, les objets (2) passent par une zone écluse (7) située en amont de la zone de séchage (8) et dans laquelle l'atmosphère normale présente en dehors de la zone de séchage (8) et une atmosphère inerte sont présentes sous forme de strates superposées en raison d'une différence de densité. Lors de leur passage par la zone écluse (7), les objets (2) sont déplacés de l'atmosphère normale à l'atmosphère inerte par un mouvement ayant une composante verticale.
EP05746458A 2004-05-25 2005-05-12 Procede et dispositif de sechage de carrosseries de vehicules peintes Expired - Fee Related EP1749176B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004025525A DE102004025525B3 (de) 2004-05-25 2004-05-25 Verfahren und Vorrichtung zum Trocknen von Gegenständen, insbesondere von lackierten Fahrzeugkarosserien
PCT/EP2005/005134 WO2005116555A1 (fr) 2004-05-25 2005-05-12 Procede et dispositif de sechage de carrosseries de vehicules peintes

Publications (2)

Publication Number Publication Date
EP1749176A1 true EP1749176A1 (fr) 2007-02-07
EP1749176B1 EP1749176B1 (fr) 2010-07-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP05746458A Expired - Fee Related EP1749176B1 (fr) 2004-05-25 2005-05-12 Procede et dispositif de sechage de carrosseries de vehicules peintes

Country Status (5)

Country Link
US (1) US20080229608A1 (fr)
EP (1) EP1749176B1 (fr)
CN (1) CN1957217B (fr)
DE (2) DE102004025525B3 (fr)
WO (1) WO2005116555A1 (fr)

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DE102007007478B3 (de) 2007-02-15 2008-05-29 Eisenmann Anlagenbau Gmbh & Co. Kg Vorrichtung zum Trocknen von Gegenständen, insbesondere von lackierten Fahrzeugkarosserien
DE102007024745A1 (de) 2007-05-26 2008-11-27 Bayerische Motoren Werke Aktiengesellschaft Vorrichtung zum Trocknen von Gegenständen, insbesondere von lackierten Fahrzeugkarosserien
FI124379B (fi) * 2007-11-12 2014-07-31 Tikkurila Oy Kappaleen pinnoitus
DE102007060104A1 (de) 2007-12-13 2009-06-18 Eisenmann Anlagenbau Gmbh & Co. Kg Vorrichtung zum Trocknen von Gegenständen, insbesondere lackierten Fahrzeugkarosserien
DE102008005584B3 (de) 2008-01-22 2009-08-20 Eisenmann Anlagenbau Gmbh & Co. Kg Vorrichtung zum Trocknen von Gegenständen, insbesondere von lackierten Fahrzeugkarosserien
DE102008036321A1 (de) * 2008-07-29 2010-02-04 Dürr Systems GmbH Lackieranlage zum Lackieren von zu lackierenden Gegenständen
DE102010002179A1 (de) * 2010-02-22 2011-08-25 Dürr Systems GmbH, 74321 Schleuse zum Überführen eines Werkstücks zwischen einem Außenraum und einem Innenraum eines Werkstückbehandlungsbereichs
DE102010043087A1 (de) * 2010-10-28 2012-05-03 Dürr Systems GmbH Prozesskammer mit Vorrichtung zum Einblasen von gasförmigen Fluid
DE102011013748A1 (de) * 2011-03-12 2012-09-13 Eisenmann Ag Verfahren zum Betreiben eines Systems mit mehreren zeitlich korrelierten Förderketten
DE102011101277B4 (de) * 2011-05-12 2020-10-29 Eisenmann Se Vorrichtung und Verfahren zum Trocknen von Werkstücken
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CN1957217B (zh) 2010-12-01
DE102004025525B3 (de) 2005-12-08
US20080229608A1 (en) 2008-09-25
WO2005116555A1 (fr) 2005-12-08
EP1749176B1 (fr) 2010-07-28
DE502005010010D1 (de) 2010-09-09
CN1957217A (zh) 2007-05-02

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