EP4536413A1 - Treatment plant for treating workpieces, and method for treating workpieces - Google Patents
Treatment plant for treating workpieces, and method for treating workpiecesInfo
- Publication number
- EP4536413A1 EP4536413A1 EP23731943.9A EP23731943A EP4536413A1 EP 4536413 A1 EP4536413 A1 EP 4536413A1 EP 23731943 A EP23731943 A EP 23731943A EP 4536413 A1 EP4536413 A1 EP 4536413A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- treatment
- station
- workpieces
- primary
- treatment area
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
- B05B13/0221—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work characterised by the means for moving or conveying the objects or other work, e.g. conveyor belts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B16/00—Spray booths
- B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
-
- 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
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/50—Multilayers
- B05D7/52—Two layers
- B05D7/53—Base coat plus clear coat type
- B05D7/534—Base coat plus clear coat type the first layer being let to dry at least partially before applying the second layer
Definitions
- Treatment system for treating workpieces and method for treating workpieces
- the present invention relates to a treatment system for treating workpieces, in particular for coating vehicle bodies.
- the treatment system is therefore in particular part of a painting system for painting vehicle bodies.
- the invention further relates to a corresponding method for treating workpieces.
- a decorative paint application can be integrated into a standard painting system in different ways, with the standard painting system usually having several treatment and/or intermediate levels.
- a first possibility for such an integration is inline process integration, in which the decorative paint application is completely integrated into a standard top coat process.
- the station intended for the top coat application is, for example, a station of several stations arranged one behind the other in a defined sequence in a conveying direction.
- the decorative paint application takes place on the same treatment level.
- An additional intermediate drying station is therefore required after the decorative paint application.
- a clear coat can then be applied.
- the integration takes place in an offline process, for which the vehicle body is removed from the process for the application of the decorative paint, in particular after the application of the base coat with subsequent drying in an intermediate drying station, what is known as “Transfer-Out” is referred to.
- the decorative paint application can therefore be carried out, for example, on a different treatment level of the painting system than that of the standard top coat process.
- an additional intermediate drying station is required after the decorative paint has been applied.
- the vehicle body After the vehicle body has been dried in the transfer-out area, it is fed back into the standard topcoat process in front of the clearcoat station, which is referred to as the so-called “transfer-in”.
- Such an option for integrating a decorative paint application is available with the brownfield approach, ie when integrating into an existing system in which a modification or direct integration into the standard top coat process is no longer possible or is disproportionately expensive and time-consuming.
- a third and fourth option for a decorative paint application requires a single-layer top coat application, also known as a “mono layer coat” or “monocoat” for short, and also involves offline process integration.
- the vehicle body is first completely painted and dried.
- the vehicle body is then transported to a so-called overspray-free paint application cabin or station (OFLA cabin or OFLA station) and is given the appropriate single-coat paint there.
- This process does not require an additional intermediate drying station after decorative paint application, but rather a new, separate drying station.
- the decorative paint and clear coat application takes place together in the OFLA station, whereby the vehicle body is also transported to a separate OFLA station or OFLA line after the standard top coat process has been completed.
- an additional intermediate drying station after the decorative paint application and another clear coat drying station after the clear coat application are also required.
- the decorative paint application in an OFLA station has so far only been integrated into the painting process if the entire top coat process is depicted as a line, although it is known that the OFLA station is often arranged on the same level as the top coat process.
- an OFLA station in which a decorative paint is applied must or should be self-sufficient an additional intermediate drying station and possibly a clear coat drying station are required.
- the present invention is based on the object of providing a treatment system which enables simple and compact process integration of a decorative paint application.
- the treatment system is used to treat workpieces.
- the treatment system is a painting system for coating vehicle bodies.
- the treatment system preferably comprises the following: several treatment levels arranged at different height levels, in particular one above the other; and/or one or more treatment lines, in particular arranged parallel to one another, which comprise a plurality of treatment areas which are arranged on one and/or more treatment levels; wherein each treatment area has one or more treatment stations for carrying out one or more treatment steps and each treatment line has one or at least two transfer conveyor devices by means of which the workpieces can be transferred between the treatment areas.
- the present invention is based on the basic idea that in a treatment system, in particular in a painting system for vehicle bodies, in which the treatment of workpieces, ie in particular vehicle bodies, takes place on one or more levels, existing and unused system space is used, in particular to provide an OFLA Station for a decorative paint application in the Integrate the top coat process.
- this unused space is located between the filter device of the basecoat station and the clearcoat station, with these filter systems preferably being arranged on the level below the level of the topcoat process.
- the top coat process level is also called the “topcoat level” or “TC level”.
- the workpieces can be conveyed by means of a transfer conveyor device into the processing area in which the decorative paint application takes place.
- this processing area is preferably located below the TC level, with the workpieces being conveyed through the stations intended for decorative paint application on the other or lower level in the opposite direction to the conveying direction of the TC level.
- the workpieces are then conveyed to the TC level or into the top coat process by means of a further transfer conveyor device, preferably before its intermediate drying station, so that no additional intermediate drying station has to be provided after the decorative paint application, but that of the top coat process can also be used, if necessary also several times if several layers of decorative varnish are desired or required for the respective workpiece.
- a transfer can also be provided with only one transfer conveyor device between the treatment areas, in particular if, by means of the one transfer conveyor device, a transfer can take place in both directions between one or more different positions of the one treatment area and one or more different positions of the further treatment area.
- a treatment line has a primary treatment area with a primary conveying direction and a secondary treatment area with a secondary conveying direction.
- the primary treatment area preferably corresponds to the top coat process area, whereas the secondary treatment area preferably comprises a decorative paint station, in particular an OFLA station.
- the primary treatment area has a primary horizontal conveyor for conveying the workpieces in the primary conveying direction and that the secondary treatment area has a secondary Horizontal conveyor device for conveying the workpieces in the secondary conveying direction.
- the horizontal conveyor devices can be conveyor lines, whereby the workpieces to be treated can each be mounted on a skid, which is conveyed through the treatment areas.
- one or more skid-free conveying devices can be provided locally or globally.
- the primary horizontal conveyor device and/or the secondary horizontal conveyor device includes driverless transport vehicles and/or transport systems or is or are formed from them.
- the primary horizontal conveyor and the secondary horizontal conveyor may be different types of horizontal conveyors from each other. However, it can be advantageous if the primary horizontal conveyor and the secondary horizontal conveyor are formed from the same type of horizontal conveyor, for example by roller conveyors, rail conveyors or a driverless transport system.
- the primary conveying direction and the secondary conveying direction are aligned in opposite directions and preferably at least approximately parallel to one another.
- the conveying directions are aligned anti-parallel to one another.
- the workpieces that are transferred back from the secondary treatment area to the primary treatment area can be integrated at a position in the primary treatment area in such a way that they pass through at least one treatment station of the primary treatment area again.
- the workpieces can be transferred from the secondary treatment area to the primary treatment area by means of a first transfer conveyor device and if the workpieces can be transferred from the primary treatment area to the secondary treatment area by means of a second transfer conveyor device.
- the two transfer conveying devices preferably enable circular conveying of the workpieces, in which the entire secondary treatment area is preferably passed through at least once and the primary treatment area at least in sections, ie at least one treatment station of the primary treatment area, is passed through by the workpieces several times, preferably twice.
- the workpieces can be conveyed through the secondary treatment area in the same orientation as in the primary treatment area.
- the workpieces can be conveyed backwards through the secondary treatment area, relative to the primary conveying direction.
- the primary treatment area has at least the following treatment stations arranged one after the other in the primary conveying direction: a basecoat station; optionally an evaporation station; an intermediate drying station; optionally a cooling station; a clear coat station; and a drying station.
- the evaporation station is optional because the position of the transfer conveyor in front of the intermediate drying station, which is otherwise passed over, can also be used for evaporation as long as the process timing does not have to transport a workpiece from the secondary treatment area to the primary treatment area.
- the cooling station is optional because cooling is also possible within the intermediate drying station. Furthermore, the provision of an evaporation station and/or a cooling station depends on the specifications of the paint supplier or the requirements of the paint used.
- the secondary treatment area has at least the following treatment stations arranged one after the other in the secondary conveying direction: optionally an intermediate storage station, in particular a first intermediate storage station; a top coat station, in particular a paint mist-free top coat station; optionally an evaporation station; and optionally an intermediate storage station, in particular a second intermediate storage station.
- One or more intermediate storage stations serve, for example, as buffers in the process timing.
- one or more intermediate storage stations, in particular the second intermediate storage station is used or can be used as an evaporation station.
- the first transfer conveyor device is arranged between the basecoat station and the intermediate drying station and the second transfer conveyor device is arranged between the intermediate drying station and the clearcoat station.
- the first transfer conveyor device is arranged after the top coat station and/or after an intermediate storage station, in particular a second intermediate storage station.
- the second transfer conveyor device is arranged in the secondary treatment area, preferably in front of the top coat station and/or in front of an intermediate storage station, in particular a first intermediate storage station.
- the workpieces can thereby preferably be conveyed multiple times through the intermediate drying station and the cooling station.
- the secondary treatment area is arranged on a treatment level below or above a treatment level of the primary treatment area, with the first and second transfer conveying devices preferably being vertical conveying devices.
- the secondary treatment area is arranged on a lowest treatment level, in particular a zero level.
- Such an arrangement of the secondary treatment area, which includes the decorative paint station, is preferably possible because the decorative paint application is preferably carried out without paint mist and therefore no washing out or other air purification is necessary below the decorative paint station.
- the primary treatment area and the secondary treatment area are arranged next to one another on a treatment level, the first transfer conveyor device and the second transfer conveyor device preferably being cross conveyor devices.
- the first transfer conveyor device and the second transfer conveyor device preferably being cross conveyor devices.
- the present invention is also based on the object of providing a method which enables efficient operation of the treatment system using a simple and compact design.
- the method is in particular a method for treating workpieces, in particular for painting vehicle bodies.
- the method can in particular have one or more of the features and/or advantages described in connection with the treatment system.
- the method comprises the following:
- the treatment areas Transferring the workpieces between the treatment areas, the treatment areas being arranged on one or more treatment levels of a treatment system and/or the treatment areas having opposite conveying directions.
- the workpieces are conveyed through at least one of the treatment areas several times, in particular at least twice. It can also be advantageous if the primary treatment area has an intermediate drying station, after which the workpieces are transferred to the secondary treatment area by means of a transfer conveyor device, and if the workpieces are transferred from the secondary treatment area back to the primary treatment area in front of the intermediate drying station by means of a further transfer device .
- orientation of the workpieces is not changed, in particular rotated, when being transferred between the treatment area.
- An alignment of the workpieces with respect to a main conveying direction of the treatment system thus preferably remains unchanged during the entire treatment in the primary and secondary treatment areas and also during the transfer between the treatment areas.
- FIG. 1 shows a schematic representation of a first embodiment of a treatment system according to the invention
- Fig. 2 is a schematic representation of a second embodiment of the treatment system according to the invention.
- Fig. 3 is a schematic representation of a third embodiment of the treatment system according to the invention.
- a first embodiment shown in Fig. 1 of a treatment system designated as a whole by 100 is used to treat workpieces.
- the treatment system 100 is in particular a painting system 102 for painting vehicle bodies.
- the treatment system 100 includes a primary treatment level 104 and a secondary treatment level 106, which are arranged one above the other.
- the horizontal, dashed line marked 108 represents, by way of example, schematically the floor of the primary treatment level 104 and/or the ceiling of the secondary treatment level 106 below.
- the treatment system 100 further includes a treatment line 110.
- the treatment system 100 includes further treatment lines, which are preferably arranged parallel to the treatment line 110 shown.
- the treatment line 110 includes a primary treatment area 112, which is arranged on the primary treatment level 104, and a secondary treatment area 114, which is arranged on the secondary treatment level 106.
- the primary treatment area 112 successively comprises, in a primary conveying direction 116, a basecoat station 118, an evaporation station 120, an intermediate drying station 122, a cooling station 124, a clearcoat station 126 and a drying station 128.
- the evaporation station 120 and the cooling station 124 are optional in the primary treatment area 112, since their use depends, among other things, on the specifications of the paint supplier.
- a filter device 130 of the basecoat station 118 and a further filter device 132 of the clearcoat station 126 are arranged below the primary treatment area 112 on the secondary treatment level 106, preferably immediately vertically below the basecoat station 118 and the clearcoat station 126.
- a base coat is applied to the workpieces
- a clear coat is applied to the workpieces
- the basecoat application in the basecoat station 118 can be done in line or in a box. The same applies to the clear coat application in the clear coat station 126.
- the primary treatment area 112 further includes a horizontal conveyor device (not shown), with which the workpieces can be conveyed through the primary treatment area 112 along the primary conveying direction 116.
- the horizontal conveyor device can be, for example, a roller conveyor, a rail conveyor or a driverless transport system.
- the secondary treatment area 114 is preferably arranged in the available space between the filter device 130 and the filter device 132.
- the secondary treatment area 114 may be arranged below the intermediate drying station 122 and/or the cooling station 124.
- the secondary treatment area 114 successively comprises an optional first intermediate storage station 136, a decorative paint station 138 and an optional second intermediate storage station 140 in a secondary conveying direction 134, the sequence of the first intermediate storage station 136, the decorative paint station 138 and the second intermediate storage station 140 in the secondary conveying direction 134 being arbitrary .
- an optional (further) evaporation station is arranged between the decorative paint station 138 and the second intermediate storage station 140.
- first intermediate storage station 136 and/or the second intermediate storage station 140 are not only used for the preferably short-term interim storage of the workpieces, so that the workpieces can simply be stored in The predetermined process cycle can be clocked, especially during reintegration into the primary treatment area 112, but can also serve as an evaporation station.
- a decorative paint is applied to the workpieces, the paint application preferably being carried out without paint mist or at least with reduced paint mist.
- the decorative paint station 138 is in particular a so-called OFLA station (overspray-free paint application station).
- the decorative paint can also be applied in a conventional manner, i.e. with so-called masking and unmasking using atomizer technology.
- the secondary treatment level 106 is preferably the zero level, in particular the so-called concrete level. This is made possible in particular by the fact that the decorative paint application in the form of a paint mist-free paint application does not require any underlying washing out or other complex air purification.
- first vertical conveyor device 142 and a second vertical conveyor device 144 are integrated into the primary and secondary treatment areas 112, 114 of the treatment line 110, by means of which the workpieces can be transferred between the primary and secondary treatment areas 112, 114.
- the second vertical conveyor device 144 is arranged after the cooling station 124 and conveys the cooled workpieces vertically along a first vertical conveyor path 146 to the secondary treatment level 106 before or into the first intermediate storage station 136.
- the cooled workpieces can be conveyed directly into the clear coat station 126 after the cooling station 124.
- a horizontal conveyor device (not shown) also conveys the workpieces along the secondary conveying direction 134 through the treatment stations. From the second intermediate storage station 140 or from a position after the second intermediate storage station 140, the workpieces provided with a decorative varnish are conveyed by means of the first vertical conveyor device 142 along a second vertical conveyor path 148 to the primary treatment level 104 in front of the intermediate drying station 122, in order to then convey the decorative varnish in the next conveying cycle to dry in this intermediate drying station 122.
- the intermediate drying station 122 is preferably designed for the resulting increased workpiece throughput.
- the multiple, in particular double, use of the intermediate drying station 122 as part of the treatment of workpieces in the treatment line 110 not only saves space, but also energy and thus costs.
- the secondary treatment area 114 can be passed through several times by the workpieces. This means that very complex decorative paint applications in particular can be realized using the multi-layer process.
- the vertical conveying devices 142, 144 can be lifting devices, elevator devices or carousel conveying devices or the like, with which the workpieces can be conveyed individually one after the other or continuously along the vertical conveying routes 146, 148.
- the workpieces are preferably secured against falling during conveyance along the vertical conveyor lines 146, 148.
- one of the vertical conveying devices 142, 144 or both vertical conveying devices 142, 144 are additionally ventilated.
- the vertical end position of the first vertical conveyor device 142 in front of the intermediate drying station 122 which passes over the workpieces that are treated in the primary treatment area 112, can replace the evaporation station 120 as a separate evaporation station, this depending in particular on which Evaporation time for the basecoat applied in the basecoat station 118 is required in order to reduce the solvent entry in the intermediate drying station 122.
- the starting position of the second vertical conveyor device 144 after the cooling station 124, which is passed over by the workpieces to reach the clear coat station 126, can also be used as an evaporation station and/or intermediate storage station.
- the decorative paint station 138 on the secondary treatment level 106 is preferably arranged below the intermediate drying station 122 and/or the cooling station 124, in particular in the vertical direction directly below the intermediate drying station 122 and/or the cooling station 124.
- the workpieces which are conveyed from the first processing area 112 into the second processing area 114 and back by means of the first and second vertical conveying directions 142, 144, do not change their orientation during the run. This means, in particular, that no rotation about the vertical axis of the workpieces is required in order to be able to be conveyed along the vertical conveying routes 146, 148, and that the workpieces can also travel backwards through the secondary treatment area 114 in the secondary conveying direction 134.
- the base coat is then evaporated from the workpiece, which is also referred to as “flash-off”. This happens either in the evaporation station 120 or at the position of the first vertical conveyor 142 in front of the intermediate drying station 122. After evaporation, the workpiece is dried in the intermediate drying station 122 and subsequently cooled down in the cooling station 124.
- the workpiece to be treated is conveyed along the vertical conveying path 146 by means of the second vertical conveying device 144 from the primary treatment level 104 into the secondary treatment level 106 in order to move the secondary treatment area 114 into the secondary Conveying direction 134, which is opposite to the primary conveying direction 116.
- the workpieces can initially be temporarily stored there in a first intermediate storage station 136, with both the first intermediate storage station 136 and the second intermediate storage station 140 simplifying the removal or introduction of workpieces into the primary processing area 112 as part of the process timing.
- a decorative varnish is then applied to the workpieces in the decorative varnish station 138, preferably in a process free of paint mist.
- the workpiece can then evaporate either in an additional evaporation station or in the second intermediate storage station 140 before it is conveyed along the second vertical conveyor path 148 by means of the first vertical conveyor 142 in front of the intermediate drying station 122 in order to pass through it again and thereby dry the applied decorative varnish.
- the workpiece which has been dried again, is then cooled again in the cooling station 124 and is then conveyed to the clear varnish station 126, i.e. at the end of the cooling cycle, unless a second decorative varnish layer is provided.
- the secondary processing area 114, the intermediate drying station 122 and the cooling station 124 must be passed through again.
- a clear coat is then applied to the workpiece in the clear coat station 126 and finally the finished painted work piece is preferably completely dried in a drying station 128.
- the second embodiment of a treatment system 100 according to the invention shown in Fig. 2 differs from the first embodiment according to Fig. 1 in that the secondary treatment area 114 of the treatment line 110 is arranged above the primary treatment area 112 of the treatment line 110, i.e. the secondary treatment level 106 of the In this case, treatment system 100 is located above the primary treatment level 104.
- the course of the treatment process remains unchanged, except that the workpieces are conveyed after the cooling station 124 by means of the second vertical conveyor device 144 along the first vertical conveyor path 146 from the primary treatment level 104 upwards to the second treatment level 106, in order to be there in the secondary conveying direction 134 secondary treatment area 114, at the end of which they are conveyed back down to the primary treatment level 104 along the second vertical conveyor section 148. There the intermediate drying station 122 and optionally the cooling station 124 of the primary treatment area 112 are then passed through again.
- Such an arrangement of the treatment system 100 is possible, among other things, because the decorative paint application in the decorative paint station 138 of the secondary treatment area 114 does not require any washing or other complex air purification arranged under the decorative paint station 138 due to its freedom from paint mist.
- an intermediate level is arranged between the primary treatment level 104 and the secondary treatment level 106, in which support modules or support units necessary for the stations of the secondary treatment area 114, such as washout devices or filter devices, can be arranged.
- FIG 3 shows a third embodiment of the treatment system 100, in which the primary treatment area 112 and the secondary treatment area 114 of the treatment line 110 are on a common, in particular primary, Treatment level 104 are arranged. Accordingly, instead of two vertical conveyors, the treatment line has a first cross conveyor 152 and a second cross conveyor 154 to transfer the workpieces between the primary and secondary treatment areas 112, 114 accordingly.
- the dashed horizontal line 150 in FIG. 3 marks a real or virtual spatial separation on the primary treatment level 104 between the primary treatment area 112 and the secondary treatment area 114.
- the workpieces are conveyed after the cooling station 124 with a second cross conveyor device 154 along a first cross conveyor path 156 into the secondary treatment area 114 of the treatment line 110, in particular to have the decorative paint applied there in the decorative paint station 138.
- the workpieces are conveyed along a second cross conveyor path 158 by means of the first cross conveyor device 152 back into the primary treatment area 112 on the same, in particular the primary, treatment level 104. There they are returned to the top coat process of the primary treatment area 112 before the intermediate drying station 122 in order to go through the intermediate drying station 122 and the cooling station 124 again before the application of a clear coat in the clear coat station 126.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Spray Control Apparatus (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
Description
Behandlungsanlage zum Behandeln von Werkstücken und Verfahren zum Behandeln von Werkstücken Treatment system for treating workpieces and method for treating workpieces
Die vorliegende Erfindung betrifft eine Behandlungsanlage zum Behandeln von Werkstücken, insbesondere zum Beschichten von Fahrzeugkarosserien. Die Behandlungsanlage ist somit insbesondere Bestandteil einer Lackieranlage zum Lackieren von Fahrzeugkarosserien. Ferner betrifft die Erfindung ein entsprechendes Verfahren zum Behandeln von Werkstücken. The present invention relates to a treatment system for treating workpieces, in particular for coating vehicle bodies. The treatment system is therefore in particular part of a painting system for painting vehicle bodies. The invention further relates to a corresponding method for treating workpieces.
Zunehmend kommen in der Praxis Anlagen zum Einsatz, die eine individuellere und variantenreichere Lackapplikation ermöglichen. Beispielsweise können zusätzlich oder partiell alternativ zu regulären Decklacken Dekorlacke appliziert werden. Eine Dekorlackapplikation kann auf unterschiedliche Arten in eine Standard-Lackieranlage integriert sein, wobei die Standard-Lackieranlage üblicherweise mehrere Behandlungs- und/oder Zwischenebenen aufweist. Systems are increasingly being used in practice that enable more individual and varied paint application. For example, decorative paints can be applied in addition to or partially as an alternative to regular top coats. A decorative paint application can be integrated into a standard painting system in different ways, with the standard painting system usually having several treatment and/or intermediate levels.
Eine erste Möglichkeit für eine solche Integration stellt eine Inline-Prozessintegration dar, bei welcher die Dekorlackapplikation vollständig in einen Standard-Decklackprozess integriert ist. Die für die Decklackapplikation vorgesehene Station ist dabei beispielsweise eine Station von mehreren, in einer definierten Abfolge in einer Förderrichtung hintereinander angeordneter Stationen. Im Einzelnen findet hierbei nach der Applikation des Basislacks und gegebenenfalls einer anschließenden Zwischentrocknung des jeweiligen Werkstücks in einer Zwischentrocknungsstation die Dekorlackapplikation auf derselben Behandlungsebene statt. Nach der Dekorlackapplikation wird deshalb eine zusätzliche Zwischentrocknungsstation benötigt. Darauffolgend kann dann ein Klarlack appliziert werden. Diese erste Möglichkeit einer Integration einer Dekorlackstation ist bevorzugt bei einem Greenfield-Ansatz, d.h. einer Neueinrichtung einer Behandlungsanlage, zu wählen, da grundsätzlich alle Stationen noch frei anordenbar sind. A first possibility for such an integration is inline process integration, in which the decorative paint application is completely integrated into a standard top coat process. The station intended for the top coat application is, for example, a station of several stations arranged one behind the other in a defined sequence in a conveying direction. In detail, after the application of the base coat and, if necessary, subsequent intermediate drying of the respective workpiece in an intermediate drying station, the decorative paint application takes place on the same treatment level. An additional intermediate drying station is therefore required after the decorative paint application. A clear coat can then be applied. This first option for integrating a decorative paint station is preferred in a greenfield approach, i.e. when setting up a new treatment system, since in principle all stations can still be freely arranged.
Bei einer zweiten Möglichkeit erfolgt die Integration in einem Offline-Prozess, wofür die Fahrzeugkarosserie für die Applikation des Dekorlacks, insbesondere nach der Applikation des Basislacks mit anschließender Trocknung in einer Zwischentrocknungsstation, aus dem Prozess ausgeschleust wird, was als sogenanntes „Transfer-Out“ bezeichnet wird. Die Dekorlackapplikation kann dadurch z.B. auf einer anderen Behandlungsebene der Lackieranlage als derjenigen des Standard- Decklackprozesses erfolgen. Auch bei der Offline-Prozessintegration wird eine zusätzliche Zwischentrocknungsstation nach der Applikation des Dekorlacks benötigt. Nach der Zwischentrocknung der Fahrzeugkarosserie in dem Transfer-Out-Bereich wird diese wieder in den Standard-Decklackprozess vor der Klarlackstation eingeschleust, was als sogenanntes „Transfer-In“ bezeichnet wird. Eine derartige Option der Integration einer Dekorlackapplikation bietet sich beim Brownfield-Ansatz an, d.h. bei einer Integration in eine Bestandsanlage, bei welcher eine Abänderung bzw. direkte Integration in den Standard-Decklackprozess nicht mehr möglich bzw. unverhältnismäßig teuer und aufwendig ist. In a second possibility, the integration takes place in an offline process, for which the vehicle body is removed from the process for the application of the decorative paint, in particular after the application of the base coat with subsequent drying in an intermediate drying station, what is known as “Transfer-Out” is referred to. The decorative paint application can therefore be carried out, for example, on a different treatment level of the painting system than that of the standard top coat process. Even with offline process integration, an additional intermediate drying station is required after the decorative paint has been applied. After the vehicle body has been dried in the transfer-out area, it is fed back into the standard topcoat process in front of the clearcoat station, which is referred to as the so-called “transfer-in”. Such an option for integrating a decorative paint application is available with the brownfield approach, ie when integrating into an existing system in which a modification or direct integration into the standard top coat process is no longer possible or is disproportionately expensive and time-consuming.
Eine dritte und vierte Möglichkeit einer Dekorlackapplikation setzen eine Einschichtdecklackapplikation, auch „Mono Layer Coat“ bzw. kurz „Monocoat“ genannt, voraus und betreffen gleichfalls eine Offline-Prozessintegration. A third and fourth option for a decorative paint application requires a single-layer top coat application, also known as a “mono layer coat” or “monocoat” for short, and also involves offline process integration.
Im Falle der dritten Option wird die Fahrzeugkarosserie zunächst vollständig lackiert und getrocknet. Anschließend wird die Fahrzeugkarosserie in eine sogenannte Oversprayfreie Lackapplikationskabine bzw. -station (OFLA-Kabine bzw. OFLA-Station) transportiert und bekommt dort den entsprechenden Einschichtlack. Bei diesem Prozess benötigt man keine zusätzliche Zwischentrocknungsstation nach der Dekorlackapplikation, sondern eine neue, separate Trocknungsstation. In the case of the third option, the vehicle body is first completely painted and dried. The vehicle body is then transported to a so-called overspray-free paint application cabin or station (OFLA cabin or OFLA station) and is given the appropriate single-coat paint there. This process does not require an additional intermediate drying station after decorative paint application, but rather a new, separate drying station.
Bei der vierten Möglichkeit erfolgt die Dekorlack- und die Klarlackapplikation zusammen in der OFLA-Station, wobei auch hier die Fahrzeugkarosserie nach Vollendung des Standard-Decklackprozesses in eine separate OFLA-Station bzw. OFLA-Linie transportiert wird. In dieser Prozessoption wird auch eine zusätzliche Zwischentrocknungsstation nach der Dekorlackapplikation sowie eine weitere Klarlacktrocknungsstation nach der Klarlackapplikation benötigt. In the fourth option, the decorative paint and clear coat application takes place together in the OFLA station, whereby the vehicle body is also transported to a separate OFLA station or OFLA line after the standard top coat process has been completed. In this process option, an additional intermediate drying station after the decorative paint application and another clear coat drying station after the clear coat application are also required.
Zusammenfassend kann festgestellt werden, dass die Dekorlackapplikation in einer OFLA-Station bisher nur in den Lackierprozess integriert ist, wenn der gesamte Decklackprozess als Linie abgebildet ist, wobei bekannt ist, dass die OFLA-Station häufig auf derselben Ebene wie der Decklackprozess angeordnet ist. Für den Fall, dass eine OFLA-Station, in welcher ein Dekorlack appliziert wird, autark sein muss oder soll, wird eine zusätzliche Zwischentrocknungsstation sowie evtl, eine Klarlack-Trocknungsstation benötigt. In summary, it can be stated that the decorative paint application in an OFLA station has so far only been integrated into the painting process if the entire top coat process is depicted as a line, although it is known that the OFLA station is often arranged on the same level as the top coat process. In the event that an OFLA station in which a decorative paint is applied must or should be self-sufficient an additional intermediate drying station and possibly a clear coat drying station are required.
Es werden somit mehrere oder zusätzliche Zwischentrocknungsstationen und/oder auch Klarlacktrocknungsstationen benötigt, wodurch nicht nur der Flächenbedarf groß oder im Vergleich zu anderen Anlagen größer ist, sondern auch die Steuerungsprozesse anspruchsvoller werden und der Energieverbrauch einer solchen Lackieranlage steigt oder erhöht ist. Several or additional intermediate drying stations and/or clear coat drying stations are therefore required, which means that not only is the space required large or larger in comparison to other systems, but the control processes also become more demanding and the energy consumption of such a painting system increases or is increased.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, eine Behandlungsanlage bereitzustellen, welche eine einfache sowie kompakte Prozessintegration einer Dekorlackapplikation ermöglicht. The present invention is based on the object of providing a treatment system which enables simple and compact process integration of a decorative paint application.
Diese Aufgabe wird erfindungsgemäß durch eine Behandlungsanlage mit den Merkmalen gemäß Anspruch 1 gelöst. This object is achieved according to the invention by a treatment system with the features according to claim 1.
Die Behandlungsanlage dient der Behandlung von Werkstücken. Insbesondere ist die Behandlungsanlage eine Lackieranlage zum Beschichten von Fahrzeugkarosserien. The treatment system is used to treat workpieces. In particular, the treatment system is a painting system for coating vehicle bodies.
Die Behandlungsanlage umfasst vorzugsweise Folgendes: mehrere auf unterschiedlichen Höhenniveaus, insbesondere übereinander, angeordnete Behandlungsebenen; und/oder eine oder mehrere, insbesondere parallel zueinander angeordnete, Behandlungslinien, welche mehrere Behandlungsbereiche umfassen, die auf einer und/oder mehreren Behandlungsebenen angeordnet sind; wobei jeder Behandlungsbereich eine oder mehrere Behandlungsstationen zur Durchführung jeweils eines oder mehrerer Behandlungsschritte aufweist und wobei jede Behandlungslinie eine oder mindestens zwei Transferfördervorrichtungen aufweist, mittels welcher die Werkstücke zwischen den Behandlungsbereichen transferierbar sind. The treatment system preferably comprises the following: several treatment levels arranged at different height levels, in particular one above the other; and/or one or more treatment lines, in particular arranged parallel to one another, which comprise a plurality of treatment areas which are arranged on one and/or more treatment levels; wherein each treatment area has one or more treatment stations for carrying out one or more treatment steps and each treatment line has one or at least two transfer conveyor devices by means of which the workpieces can be transferred between the treatment areas.
Die vorliegende Erfindung basiert auf der Grundidee, dass bei einer Behandlungsanlage, insbesondere bei einer Lackieranlage für Fahrzeugkarosserien, bei welcher die Behandlung von Werkstücken, d.h. insbesondere Fahrzeugkarossieren, auf einer oder mehreren Ebenen stattfindet, vorhandener und ungenutzter Anlagenraum genutzt wird, um insbesondere eine OFLA-Station für eine Dekorlackapplikation in den Decklackprozess zu integrieren. Beispielsweise befindet sich dieser ungenutzte Raum zwischen der Filtereinrichtung der Basislackstation und der Klarlackstation, wobei diese Filteranlagen bevorzugt auf der Ebene unterhalb der Ebene des Decklackprozesses angeordnet sind. Die Decklackprozessebene wird auch „Topcoat-Ebene“ bzw. „TC- Ebene“ genannt. Infolgedessen können die Werkstücke nach der Zwischentrocknungsstation auf der TC-Ebene mittels einer Transferfördervorrichtung in den Bearbeitungsbereich gefördert werden, in welchem die Dekorlackapplikation erfolgt. Wie bereits erwähnt, befindet sich dieser Bearbeitungsbereich bevorzugt unterhalb der TC-Ebene, wobei die Werkstücke durch die für die Dekorlackapplikation vorgesehenen Stationen auf der anderen bzw. unteren Ebene in entgegengesetzter Richtung der Förderrichtung der TC-Ebene hindurchgefördert werden. Nach der Dekorlackapplikation werden die Werkstücke dann mittels einer weiteren Transferfördervorrichtung auf die TC- Ebene bzw. in den Decklackprozess gefördert und zwar vorzugsweise vor dessen Zwischentrocknungsstation, so dass keine zusätzliche Zwischentrocknungsstation nach der Dekorlackapplikation vorgesehen sein muss, sondern diejenige des Decklackprozess mitgenutzt werden kann, gegebenenfalls auch mehrfach, sofern mehrere Dekorlackschichten für das jeweilige Werkstück gewünscht bzw. gefordert sind. The present invention is based on the basic idea that in a treatment system, in particular in a painting system for vehicle bodies, in which the treatment of workpieces, ie in particular vehicle bodies, takes place on one or more levels, existing and unused system space is used, in particular to provide an OFLA Station for a decorative paint application in the Integrate the top coat process. For example, this unused space is located between the filter device of the basecoat station and the clearcoat station, with these filter systems preferably being arranged on the level below the level of the topcoat process. The top coat process level is also called the “topcoat level” or “TC level”. As a result, after the intermediate drying station on the TC level, the workpieces can be conveyed by means of a transfer conveyor device into the processing area in which the decorative paint application takes place. As already mentioned, this processing area is preferably located below the TC level, with the workpieces being conveyed through the stations intended for decorative paint application on the other or lower level in the opposite direction to the conveying direction of the TC level. After the decorative paint application, the workpieces are then conveyed to the TC level or into the top coat process by means of a further transfer conveyor device, preferably before its intermediate drying station, so that no additional intermediate drying station has to be provided after the decorative paint application, but that of the top coat process can also be used, if necessary also several times if several layers of decorative varnish are desired or required for the respective workpiece.
Alternativ kann auch ein Transfer mit nur einer Transferfördervorrichtung zwischen den Behandlungsbereichen vorgesehen sein, insbesondere dann, wenn mittels der einen Transferfördervorrichtung ein Transfer in beiden Richtungen zwischen einer oder mehreren unterschiedlichen Positionen des einen Behandlungsbereichs und einer oder mehreren unterschiedlichen Positionen des weiteren Behandlungsbereichs erfolgen kann. Alternatively, a transfer can also be provided with only one transfer conveyor device between the treatment areas, in particular if, by means of the one transfer conveyor device, a transfer can take place in both directions between one or more different positions of the one treatment area and one or more different positions of the further treatment area.
Es kann vorteilhaft sein, wenn eine Behandlungslinie einen primären Behandlungsbereich mit einer primären Förderrichtung und einen sekundären Behandlungsbereich mit einer sekundären Förderrichtung aufweist. It can be advantageous if a treatment line has a primary treatment area with a primary conveying direction and a secondary treatment area with a secondary conveying direction.
Bevorzugt entspricht der primäre Behandlungsbereich dem Decklackprozessbereich, wohingegen der sekundäre Behandlungsbereich vorzugsweise eine Dekorlackstation, insbesondere eine OFLA-Station, umfasst. The primary treatment area preferably corresponds to the top coat process area, whereas the secondary treatment area preferably comprises a decorative paint station, in particular an OFLA station.
Es kann ferner vorgesehen sein, dass der primäre Behandlungsbereich eine primäre Horizontalfördervorrichtung zum Fördern der Werkstücke in der primären Förderrichtung aufweist und dass der sekundäre Behandlungsbereich eine sekundäre Horizontalfördervorrichtung zum Fördern der Werkstücke in der sekundären Förderrichtung aufweist. It can further be provided that the primary treatment area has a primary horizontal conveyor for conveying the workpieces in the primary conveying direction and that the secondary treatment area has a secondary Horizontal conveyor device for conveying the workpieces in the secondary conveying direction.
Die Horizontalfördervorrichtungen können Förderlinien sein, wobei die zu behandelnden Werkstücke jeweils auf einem Skid montiert sein können, welcher durch die Behandlungsbereiche gefördert wird. Alternativ hierzu können lokal oder global eine oder mehrere skidfreie Fördervorrichtungen vorgesehen sein. The horizontal conveyor devices can be conveyor lines, whereby the workpieces to be treated can each be mounted on a skid, which is conveyed through the treatment areas. Alternatively, one or more skid-free conveying devices can be provided locally or globally.
Vorteilhaft kann es insbesondere sein, wenn die primäre Horizontalfördervorrichtung und/oder die sekundäre Horizontalfördervorrichtung fahrerlose Transportfahrzeuge und/oder Transportsysteme umfasst oder daraus gebildet ist bzw. sind. It can be particularly advantageous if the primary horizontal conveyor device and/or the secondary horizontal conveyor device includes driverless transport vehicles and/or transport systems or is or are formed from them.
Die primäre Horizontalfördervorrichtung und die sekundäre Horizontalfördervorrichtung können voneinander verschiedene Arten von Horizontalfördervorrichtungen sein. Vorteilhaft kann es hingegen sein, wenn die primäre Horizontalfördervorrichtung und die sekundäre Horizontalfördervorrichtung aus derselben Art von Horizontalfördervorrichtung gebildet sind, beispielsweise durch Rollenförderer, Schienenförderer oder ein fahrerloses Transportsystem. The primary horizontal conveyor and the secondary horizontal conveyor may be different types of horizontal conveyors from each other. However, it can be advantageous if the primary horizontal conveyor and the secondary horizontal conveyor are formed from the same type of horizontal conveyor, for example by roller conveyors, rail conveyors or a driverless transport system.
Vorteilhaft kann es sein, wenn die primäre Förderrichtung und die sekundäre Förderrichtung gegenläufig und vorzugsweise zumindest annähernd parallel zueinander ausgerichtet sind. Insbesondere sind die Förderrichtungen antiparallel zueinander ausgerichtet. It can be advantageous if the primary conveying direction and the secondary conveying direction are aligned in opposite directions and preferably at least approximately parallel to one another. In particular, the conveying directions are aligned anti-parallel to one another.
Dadurch können die Werkstücke, welche von dem sekundären Behandlungsbereich in den primären Behandlungsbereich zurücktransferiert werden, so an einer Position des primären Behandlungsbereichs integriert werden, dass sie zumindest eine Behandlungsstation des primären Behandlungsbereichs erneut durchlaufen. As a result, the workpieces that are transferred back from the secondary treatment area to the primary treatment area can be integrated at a position in the primary treatment area in such a way that they pass through at least one treatment station of the primary treatment area again.
Besonders vorteilhaft kann es sein, wenn die Werkstücke mittels einer ersten Transferfördervorrichtung vom sekundären Behandlungsbereich in den primären Behandlungsbereich transferierbar sind und wenn die Werkstücke mittels einer zweiten Transferfördervorrichtung vom primären Behandlungsbereich in den sekundären Behandlungsbereich transferierbar sind. Durch die beiden Transferfördervorrichtungen ist vorzugsweise eine Kreisförderung der Werkstücke möglich, bei welcher vorzugsweise der gesamte sekundäre Behandlungsbereich mindestens einmal und der primäre Behandlungsbereich zumindest abschnittsweise, d.h. mindestens eine Behandlungsstation des primären Behandlungsbereichs, mehrfach, vorzugsweise zweimal, von den Werkstücken durchlaufen wird. It can be particularly advantageous if the workpieces can be transferred from the secondary treatment area to the primary treatment area by means of a first transfer conveyor device and if the workpieces can be transferred from the primary treatment area to the secondary treatment area by means of a second transfer conveyor device. The two transfer conveying devices preferably enable circular conveying of the workpieces, in which the entire secondary treatment area is preferably passed through at least once and the primary treatment area at least in sections, ie at least one treatment station of the primary treatment area, is passed through by the workpieces several times, preferably twice.
Vorteilhaft kann es sein, wenn die Werkstücke durch den sekundären Behandlungsbereich in der gleichen Orientierung wie im primären Behandlungsbereich förderbar sind. It can be advantageous if the workpieces can be conveyed through the secondary treatment area in the same orientation as in the primary treatment area.
Besonders vorteilhaft kann es sein, wenn die Werkstücke nicht um ihre Hochachse gedreht werden müssen, um von Transferfördervorrichtungen zwischen den Behandlungsbereichen transferiert zu werden. It can be particularly advantageous if the workpieces do not have to be rotated about their vertical axis in order to be transferred between the treatment areas by transfer conveying devices.
Insbesondere kann es vorgesehen sein, dass die Werkstücke durch den sekundären Behandlungsbereich, bezogen auf die primäre Förderrichtung, rückwärts förderbar sind. In particular, it can be provided that the workpieces can be conveyed backwards through the secondary treatment area, relative to the primary conveying direction.
Vorteilhaft kann es sein, wenn der primäre Behandlungsbereich in primärer Förderrichtung nacheinander angeordnet zumindest folgende Behandlungsstationen aufweist: eine Basislackstation; optional eine Abdunststation; eine Zwischentrocknungsstation; optional eine Kühlstation; eine Klarlackstation; und eine Trocknungsstation. It can be advantageous if the primary treatment area has at least the following treatment stations arranged one after the other in the primary conveying direction: a basecoat station; optionally an evaporation station; an intermediate drying station; optionally a cooling station; a clear coat station; and a drying station.
Die Abdunststation ist deshalb optional, weil die Position der Transferfördervorrichtung vor der Zwischentrocknungsstation, welche ansonsten überfahren wird, auch zum Abdunsten genutzt werden kann, solange die Prozesstaktung kein Werkstück aus dem sekundären Behandlungsbereich in den primären Behandlungsbereich fördern muss. The evaporation station is optional because the position of the transfer conveyor in front of the intermediate drying station, which is otherwise passed over, can also be used for evaporation as long as the process timing does not have to transport a workpiece from the secondary treatment area to the primary treatment area.
Die Kühlstation ist deshalb optional, weil die Kühlung auch innerhalb der Zwischentrocknungsstation denkbar ist. Ferner ist das Vorsehen einer Abdunststation und/oder einer Kühlstation abhängig von den Vorgaben des Lacklieferanten bzw. den Anforderungen des verwendeten Lacks. The cooling station is optional because cooling is also possible within the intermediate drying station. Furthermore, the provision of an evaporation station and/or a cooling station depends on the specifications of the paint supplier or the requirements of the paint used.
Günstig kann es sein, wenn der sekundäre Behandlungsbereich in sekundärer Förderrichtung nacheinander angeordnet zumindest folgende Behandlungsstationen aufweist: optional eine Zwischenlagerstation, insbesondere eine erste Zwischenlagerstation; eine Decklackstation, insbesondere eine farbnebelfreie Decklackstation; optional eine Abdunststation; und optional eine Zwischenlagerstation, insbesondere eine zweite Zwischenlagerstation. It can be advantageous if the secondary treatment area has at least the following treatment stations arranged one after the other in the secondary conveying direction: optionally an intermediate storage station, in particular a first intermediate storage station; a top coat station, in particular a paint mist-free top coat station; optionally an evaporation station; and optionally an intermediate storage station, in particular a second intermediate storage station.
Es soll verstanden werden, dass die aufgeführten Behandlungsstationen des sekundären Behandlungsbereichs auch in einer anderen Reihenfolge in sekundärer Förderrichtung angeordnet sein können. Die Aufzählung ist somit nicht als einzig mögliche Reihenfolge der Behandlungsstationen zu verstehen. Gleiches gilt analog für die Behandlungsstationen im primären Behandlungsbereich. It should be understood that the listed treatment stations of the secondary treatment area can also be arranged in a different order in the secondary conveying direction. The list should therefore not be understood as the only possible order of the treatment stations. The same applies analogously to the treatment stations in the primary treatment area.
Eine oder mehrere Zwischenlagerstationen, insbesondere die erste und/oder die zweite Zwischenlagerstation, dienen beispielsweise als Puffer in der Prozesstaktung. Alternativ oder ergänzend hierzu kann vorgesehen sein, dass eine oder mehrere Zwischenlagerstationen, insbesondere die zweite Zwischenlagerstation, als Abdunststation eingesetzt wird oder nutzbar ist. One or more intermediate storage stations, in particular the first and/or the second intermediate storage station, serve, for example, as buffers in the process timing. Alternatively or in addition to this, it can be provided that one or more intermediate storage stations, in particular the second intermediate storage station, is used or can be used as an evaporation station.
Es kann ferner vorgesehen sein, dass im primären Behandlungsbereich die erste Transferfördervorrichtung zwischen der Basislackstation und der Zwischentrocknungsstation und die zweite Transferfördervorrichtung zwischen der Zwischentrocknungsstation und der Klarlackstation angeordnet ist. It can further be provided that in the primary treatment area the first transfer conveyor device is arranged between the basecoat station and the intermediate drying station and the second transfer conveyor device is arranged between the intermediate drying station and the clearcoat station.
Ferner kann vorgesehen sein, dass im sekundären Behandlungsbereich die erste Transferfördervorrichtung nach der Decklackstation und/oder nach einer Zwischenlagerstation, insbesondere einer zweiten Zwischenlagerstation, angeordnet ist. Die zweite Transferfördervorrichtung ist im sekundären Behandlungsbereich vorzugsweise vor der Decklackstation und/oder vor einer Zwischenlagerstation, insbesondere einer ersten Zwischenlagerstation, angeordnet. Furthermore, it can be provided that in the secondary treatment area the first transfer conveyor device is arranged after the top coat station and/or after an intermediate storage station, in particular a second intermediate storage station. The second transfer conveyor device is arranged in the secondary treatment area, preferably in front of the top coat station and/or in front of an intermediate storage station, in particular a first intermediate storage station.
Die Werkstücke sind hierdurch vorzugsweise mehrfach durch die Zwischentrocknungsstation und die Kühlstation förderbar. The workpieces can thereby preferably be conveyed multiple times through the intermediate drying station and the cooling station.
Dadurch ist in vorteilhafter Weise die Zwischentrocknungsstation des primären Behandlungsbereichs mehrfach nutzbar, was bedeutet, dass vorzugsweise keine zusätzliche Zwischentrocknungsstation für den sekundären Behandlungsbereich erforderlich ist. Hierdurch können vorzugsweise Kosten und Anlagenraum eingespart werden und zudem kann eine einfache Integration einer Dekorlackapplikation in einen existenten primären Behandlungsbereich, insbesondere einen Standard- Decklackprozess, möglich sein. This advantageously allows the intermediate drying station of the primary treatment area to be used multiple times, which means that preferably no additional intermediate drying station is required for the secondary treatment area. In this way, costs and system space can preferably be saved and, in addition, a simple integration of a decorative paint application into an existing primary treatment area, in particular a standard top coat process, can be possible.
In einer weiteren Ausgestaltung der Erfindung kann vorgesehen sein, dass der sekundäre Behandlungsbereich auf einer Behandlungsebene unterhalb oder oberhalb einer Behandlungsebene des primären Behandlungsbereich angeordnet ist, wobei die erste und die zweite Transferfördervorrichtung vorzugsweise Vertikalfördervorrichtungen sind. In a further embodiment of the invention, it can be provided that the secondary treatment area is arranged on a treatment level below or above a treatment level of the primary treatment area, with the first and second transfer conveying devices preferably being vertical conveying devices.
In einer weiteren Ausgestaltung der Erfindung kann vorgesehen sein, dass der sekundäre Behandlungsbereich auf einer untersten Behandlungsebene, insbesondere einer Nullebene, angeordnet ist. In a further embodiment of the invention it can be provided that the secondary treatment area is arranged on a lowest treatment level, in particular a zero level.
Eine solche Anordnung des sekundären Behandlungsbereichs, welcher die Dekorlackstation umfasst, ist vorzugsweise deshalb möglich, weil die Dekorlackapplikation vorzugsweise farbnebelfrei erfolgt und dadurch keine Auswaschung oder sonstige Luftreinigung unterhalb der Dekorlackstation notwendig ist. Such an arrangement of the secondary treatment area, which includes the decorative paint station, is preferably possible because the decorative paint application is preferably carried out without paint mist and therefore no washing out or other air purification is necessary below the decorative paint station.
In einer weiteren Ausgestaltung der Erfindung kann vorgesehen sein, dass der primäre Behandlungsbereich und der sekundäre Behandlungsbereich auf einer Behandlungsebene nebeneinander angeordnet sind, wobei die erste Transferfördervorrichtung und die zweite Transferfördervorrichtung vorzugsweise Querfördervorrichtungen sind. Eine solche Anordnung bietet eine Alternative, wenn unter- oder oberhalb des primären Behandlungsbereichs, insbesondere auf der Höhe der Zwischentrocknungsstation und der Kühlstation, nicht ausreichend Anlagenraum zur Verfügung steht, um den sekundären Behandlungsbereich ein- bzw. nachzurüsten. In a further embodiment of the invention, it can be provided that the primary treatment area and the secondary treatment area are arranged next to one another on a treatment level, the first transfer conveyor device and the second transfer conveyor device preferably being cross conveyor devices. Such an arrangement offers an alternative if there is not enough system space available below or above the primary treatment area, in particular at the level of the intermediate drying station and the cooling station, to install or retrofit the secondary treatment area.
Der vorliegenden Erfindung liegt ferner die Aufgabe zugrunde, ein Verfahren bereitzustellen, welches unter Verwendung einer einfach und kompakt aufgebauten Behandlungsanlage einen effizienten Betrieb derselben ermöglicht. The present invention is also based on the object of providing a method which enables efficient operation of the treatment system using a simple and compact design.
Diese Aufgabe wird erfindungsgemäß durch ein Verfahren gemäß dem unabhängigen Verfahrensanspruch gelöst. This object is achieved according to the invention by a method according to the independent method claim.
Das Verfahren ist insbesondere ein Verfahren zur Behandlung von Werkstücken, insbesondere zum Lackieren von Fahrzeugkarosserien. The method is in particular a method for treating workpieces, in particular for painting vehicle bodies.
Das Verfahren kann insbesondere einzelne oder mehrere der im Zusammenhang mit der Behandlungsanlage beschriebenen Merkmale und/oder Vorteile aufweisen. The method can in particular have one or more of the features and/or advantages described in connection with the treatment system.
Vorzugsweise umfasst das Verfahren Folgendes: Preferably the method comprises the following:
Behandeln der Werkstücke in mehreren Behandlungsbereichen, insbesondere in einem primären und einem sekundären Behandlungsbereich, einer Behandlungslinie, welche jeweils eine oder mehrere Behandlungsstationen zur Durchführung jeweils eines oder mehrerer Behandlungsschritte aufweisen. Treating the workpieces in several treatment areas, in particular in a primary and a secondary treatment area, a treatment line, each of which has one or more treatment stations for carrying out one or more treatment steps.
In einer weiteren Ausgestaltung der Erfindung kann vorgesehen sein, dass das Verfahren ferner Folgendes umfasst: In a further embodiment of the invention it can be provided that the method further comprises the following:
Transferieren der Werkstücke zwischen den Behandlungsbereichen, wobei die Behandlungsbereiche auf einer oder mehreren Behandlungsebenen einer Behandlungsanlage angeordnet sind und/oder wobei die Behandlungsbereiche gegenläufige Förderrichtungen aufweisen. Transferring the workpieces between the treatment areas, the treatment areas being arranged on one or more treatment levels of a treatment system and/or the treatment areas having opposite conveying directions.
Günstig kann es sein, wenn die Werkstücke mehrfach, insbesondere mindestens zweimal, durch mindestens einen der Behandlungsbereiche hindurchgefördert werden. Vorteilhaft kann es ferner sein, wenn der primäre Behandlungsbereich eine Zwischentrocknungsstation aufweist, nach welcher die Werkstücke mittels einer Transferfördervorrichtung in den sekundären Behandlungsbereich transferiert werden, und wenn die Werkstücke mittels einer weiteren Transfördervorrichtung von dem sekundären Behandlungsbereich zurück in den primären Behandlungsbereich vor die Zwischentrocknungsstation transferiert werden. It can be advantageous if the workpieces are conveyed through at least one of the treatment areas several times, in particular at least twice. It can also be advantageous if the primary treatment area has an intermediate drying station, after which the workpieces are transferred to the secondary treatment area by means of a transfer conveyor device, and if the workpieces are transferred from the secondary treatment area back to the primary treatment area in front of the intermediate drying station by means of a further transfer device .
Es kann ferner vorgesehen sein, dass die Werkstücke beim Transferieren zwischen den Behandlungsbereich nicht in ihrer Orientierung verändert, insbesondere gedreht, werden. Eine Ausrichtung der Werkstücke bezüglich einer Hauptförderrichtung der Behandlungsanlage bleibt somit vorzugsweise während der gesamte Behandlung im primären sowie im sekundären Behandlungsbereich und ferner auch während des Transfers zwischen den Behandlungsbereichen unverändert. It can also be provided that the orientation of the workpieces is not changed, in particular rotated, when being transferred between the treatment area. An alignment of the workpieces with respect to a main conveying direction of the treatment system thus preferably remains unchanged during the entire treatment in the primary and secondary treatment areas and also during the transfer between the treatment areas.
Weitere bevorzugte Merkmale und/oder Vorteile der Erfindung sind Gegenstand der nachfolgenden Beschreibung und der zeichnerischen Darstellung von Ausführungsbeispielen. Further preferred features and/or advantages of the invention are the subject of the following description and the graphic representation of exemplary embodiments.
In den Figuren zeigen: Show in the figures:
Fig. 1 eine schematische Darstellung einer ersten Ausführungsform einer erfindungsgemäßen Behandlungsanlage; 1 shows a schematic representation of a first embodiment of a treatment system according to the invention;
Fig. 2 eine schematische Darstellung einer zweiten Ausführungsform der erfindungsgemäßen Behandlungsanlage; und Fig. 2 is a schematic representation of a second embodiment of the treatment system according to the invention; and
Fig. 3 eine schematische Darstellung einer dritten Ausführungsform der erfindungsgemäßen Behandlungsanlage. Fig. 3 is a schematic representation of a third embodiment of the treatment system according to the invention.
Gleiche oder funktional äquivalente Elemente sind in sämtlichen Figuren mit denselben Bezugszeichen versehen. Identical or functionally equivalent elements are provided with the same reference numbers in all figures.
Eine in Fig. 1 dargestellte erste Ausführungsform einer als Ganzes mit 100 bezeichneten Behandlungsanlage dient der Behandlung von Werkstücken. Die Behandlungsanlage 100 ist insbesondere eine Lackieranlage 102 zum Lackieren von Fahrzeugkarosserien. A first embodiment shown in Fig. 1 of a treatment system designated as a whole by 100 is used to treat workpieces. The treatment system 100 is in particular a painting system 102 for painting vehicle bodies.
Die Behandlungsanlage 100 umfasst eine primäre Behandlungsebene 104 und eine sekundäre Behandlungsebene 106, welche übereinander angeordnet sind. The treatment system 100 includes a primary treatment level 104 and a secondary treatment level 106, which are arranged one above the other.
Die mit 108 gekennzeichnete, horizontale, gestrichelte Linie stellt beispielhaft schematisch den Boden der primären Behandlungsebene 104 und/oder die Decke der darunterliegenden sekundären Behandlungsebene 106 dar. The horizontal, dashed line marked 108 represents, by way of example, schematically the floor of the primary treatment level 104 and/or the ceiling of the secondary treatment level 106 below.
Die Behandlungsanlage 100 umfasst ferner eine Behandlungslinie 110. The treatment system 100 further includes a treatment line 110.
Möglich ist, dass die Behandlungsanlage 100 weitere Behandlungslinien umfasst, welche vorzugsweise parallel zu der dargestellten Behandlungslinie 110 angeordnet sind. It is possible that the treatment system 100 includes further treatment lines, which are preferably arranged parallel to the treatment line 110 shown.
Die Behandlungslinie 110 umfasst einen primären Behandlungsbereich 112, welcher auf der primären Behandlungsebene 104 angeordnet ist, und einen sekundären Behandlungsbereich 114, welcher auf der sekundären Behandlungsebene 106 angeordnet ist. The treatment line 110 includes a primary treatment area 112, which is arranged on the primary treatment level 104, and a secondary treatment area 114, which is arranged on the secondary treatment level 106.
Der primäre Behandlungsbereich 112 umfasst in einer primären Förderrichtung 116 aufeinanderfolgend eine Basislackstation 118, eine Abdunststation 120, eine Zwischentrocknungsstation 122, eine Kühlstation 124, eine Klarlackstation 126 und eine Trocknungsstation 128. The primary treatment area 112 successively comprises, in a primary conveying direction 116, a basecoat station 118, an evaporation station 120, an intermediate drying station 122, a cooling station 124, a clearcoat station 126 and a drying station 128.
Die Abdunststation 120 und die Kühlstation 124 sind im primären Behandlungsbereich 112 optional, da ihr Einsatz u.a. von den Vorgaben der Lacklieferanten abhängt. The evaporation station 120 and the cooling station 124 are optional in the primary treatment area 112, since their use depends, among other things, on the specifications of the paint supplier.
Bei der Ausführungsform einer Behandlungsanlage 100 gemäß Fig. 1 sind eine Filtereinrichtung 130 der Basislackstation 118 sowie eine weitere Filtereinrichtung 132 der Klarlackstation 126 unterhalb des primären Behandlungsbereichs 112 auf der sekundären Behandlungsebene 106 angeordnet, vorzugsweise jeweils unmittelbar vertikal unterhalb der Basislackstation 118 und der Klarlackstation 126. Es ist allerdings auch möglich, die Filtereinrichtung 130 und/oder die Filtereinrichtung 132 oberhalb des primären Behandlungsbereichs 112 oder alternativ auf der primären Behandlungsebene 104 anzuordnen. 1, a filter device 130 of the basecoat station 118 and a further filter device 132 of the clearcoat station 126 are arranged below the primary treatment area 112 on the secondary treatment level 106, preferably immediately vertically below the basecoat station 118 and the clearcoat station 126. However, it is also possible to arrange the filter device 130 and/or the filter device 132 above the primary treatment area 112 or alternatively on the primary treatment level 104.
In der Basislackstation 118 wird ein Basislack auf die Werkstücke appliziert, wohingegen in der Klarlackstation 126 ein Klarlack auf die Werkstücke appliziert wird. In the base coat station 118, a base coat is applied to the workpieces, whereas in the clear coat station 126, a clear coat is applied to the workpieces.
Die Basislackapplikation in der Basislackstation 118 kann in Linie oder in einer Box erfolgen. Gleiches gilt für die Klarlackapplikation in der Klarlackstation 126. The basecoat application in the basecoat station 118 can be done in line or in a box. The same applies to the clear coat application in the clear coat station 126.
Der primäre Behandlungsbereich 112 umfasst ferner eine Horizontalfördervorrichtung (nicht dargestellt), mit welcher die Werkstücke durch den primären Behandlungsbereich 112 längs der primären Förderrichtung 116 gefördert werden können. The primary treatment area 112 further includes a horizontal conveyor device (not shown), with which the workpieces can be conveyed through the primary treatment area 112 along the primary conveying direction 116.
Bei der Horizontalfördervorrichtung kann es sich beispielsweise um einen Rollenförderer, einen Schienenförderer oder ein fahrerloses Transportsystem handeln. The horizontal conveyor device can be, for example, a roller conveyor, a rail conveyor or a driverless transport system.
Der sekundäre Behandlungsbereich 114 ist vorzugsweise in dem verfügbaren Raum zwischen der Filtereinrichtung 130 und der Filtereinrichtung 132 angeordnet. The secondary treatment area 114 is preferably arranged in the available space between the filter device 130 and the filter device 132.
Alternativ kann der sekundäre Behandlungsbereich 114 unterhalb der Zwischentrocknungsstation 122 und/oder der Kühlstation 124 angeordnet sein. Alternatively, the secondary treatment area 114 may be arranged below the intermediate drying station 122 and/or the cooling station 124.
Der sekundäre Behandlungsbereich 114 umfasst in einer sekundären Förderrichtung 134 aufeinanderfolgend eine optionale erste Zwischenlagerstation 136, eine Dekorlackstation 138 und eine optionale zweite Zwischenlagerstation 140, wobei die Abfolge der ersten Zwischenlagerstation 136, der Dekorlackstation 138 und der zweiten Zwischenlagerstation 140 in der sekundären Förderrichtung 134 beliebig ist. The secondary treatment area 114 successively comprises an optional first intermediate storage station 136, a decorative paint station 138 and an optional second intermediate storage station 140 in a secondary conveying direction 134, the sequence of the first intermediate storage station 136, the decorative paint station 138 and the second intermediate storage station 140 in the secondary conveying direction 134 being arbitrary .
Es kann ferner sein, dass zwischen der Dekorlackstation 138 und der zweiten Zwischenlagerstation 140 eine optionale (weitere) Abdunststation angeordnet ist. It may also be that an optional (further) evaporation station is arranged between the decorative paint station 138 and the second intermediate storage station 140.
Zudem kann vorgesehen sein, dass die erste Zwischenlagerstation 136 und/oder die zweite Zwischenlagerstation 140 nicht nur zur vorzugsweisen kurzzeitigen Zwischenlagerung der Werkstücke verwendet werden, so dass die Werkstücke einfach in den vorbestimmten Prozesstakt eingetaktet werden können, insbesondere bei der Reintegration in den primären Behandlungsbereich 112, sondern auch als Abdunststation dienen können. In addition, it can be provided that the first intermediate storage station 136 and/or the second intermediate storage station 140 are not only used for the preferably short-term interim storage of the workpieces, so that the workpieces can simply be stored in The predetermined process cycle can be clocked, especially during reintegration into the primary treatment area 112, but can also serve as an evaporation station.
In der Dekorlackstation 138 wird ein Dekorlack auf die Werkstücke appliziert, wobei die Lackapplikation vorzugsweise farbnebelfrei oder zumindest farbnebelreduziert erfolgt. Die Dekorlackstation 138 ist insbesondere eine sogenannte OFLA-Station (Overspray-freie Lack-Applikations-Station). In the decorative paint station 138, a decorative paint is applied to the workpieces, the paint application preferably being carried out without paint mist or at least with reduced paint mist. The decorative paint station 138 is in particular a so-called OFLA station (overspray-free paint application station).
Alternativ kann der Dekorlack auch auf herkömmliche Art und Weise appliziert werden, d.h. mit einem sogenannten Masking und Demasking mittels Zerstäubertechnologie. Alternatively, the decorative paint can also be applied in a conventional manner, i.e. with so-called masking and unmasking using atomizer technology.
In der Ausführungsform der Behandlungsanlage 100 gemäß Fig. 1 ist die sekundäre Behandlungsebene 106 vorzugsweise die Nullebene, insbesondere die sogenannte Betonebene. Dies wird insbesondere dadurch ermöglicht, dass die Dekorlackapplikation in Form einer farbnebelfreien Lackapplikation keine darunterliegende Auswaschung oder sonstige aufwändige Luftreinigung erfordert. In the embodiment of the treatment system 100 according to FIG. 1, the secondary treatment level 106 is preferably the zero level, in particular the so-called concrete level. This is made possible in particular by the fact that the decorative paint application in the form of a paint mist-free paint application does not require any underlying washing out or other complex air purification.
Ferner sind in den primären und den sekundären Behandlungsbereich 112, 114 der Behandlungslinie 110 eine erste Vertikalfördervorrichtungen 142 und eine zweite Vertikalfördervorrichtung 144 integriert, mittels welcher die Werkstücke zwischen dem primären und den sekundären Behandlungsbereich 112, 114 transferierbar sind. Furthermore, a first vertical conveyor device 142 and a second vertical conveyor device 144 are integrated into the primary and secondary treatment areas 112, 114 of the treatment line 110, by means of which the workpieces can be transferred between the primary and secondary treatment areas 112, 114.
Die zweite Vertikalfördervorrichtung 144 ist nach der Kühlstation 124 angeordnet und fördert die abgekühlten Werkstücke vertikal entlang einer ersten Vertikalförderstrecke 146 auf die sekundäre Behandlungsebene 106 vor oder in die erste Zwischenlagerstation 136. The second vertical conveyor device 144 is arranged after the cooling station 124 and conveys the cooled workpieces vertically along a first vertical conveyor path 146 to the secondary treatment level 106 before or into the first intermediate storage station 136.
Für den Fall, dass prozessabhängig die zweite Vertikalfördervorrichtung 144 nicht benötigt wird, können die abgekühlten Werkstücke nach der Kühlstation 124 direkt in die Klarlackstation 126 gefördert werden. In the event that, depending on the process, the second vertical conveyor device 144 is not required, the cooled workpieces can be conveyed directly into the clear coat station 126 after the cooling station 124.
Im sekundären Behandlungsbereich 114 fördert ebenfalls eine Horizontalfördervorrichtung (nicht dargestellt) die Werkstücke längs der sekundären Förderrichtung 134 durch die Behandlungsstationen. Von der zweiten Zwischenlagerstation 140 aus oder aus einer Position nach der zweiten Zwischenlagerstation 140 werden die mit einem Dekorlack versehenen Werkstücke mittels der ersten Vertikalfördervorrichtung 142 entlang einer zweiten Vertikalförderstrecke 148 auf die primäre Behandlungsebene 104 vor die Zwischentrocknungsstation 122 gefördert, um dann im nächsten Fördertakt den Dekorlack in dieser Zwischentrocknungsstation 122 zu trocknen. In the secondary treatment area 114, a horizontal conveyor device (not shown) also conveys the workpieces along the secondary conveying direction 134 through the treatment stations. From the second intermediate storage station 140 or from a position after the second intermediate storage station 140, the workpieces provided with a decorative varnish are conveyed by means of the first vertical conveyor device 142 along a second vertical conveyor path 148 to the primary treatment level 104 in front of the intermediate drying station 122, in order to then convey the decorative varnish in the next conveying cycle to dry in this intermediate drying station 122.
Die Zwischentrocknungsstation 122 ist vorzugsweise auf den hieraus resultierenden erhöhten Werkstückdurchsatz ausgelegt. The intermediate drying station 122 is preferably designed for the resulting increased workpiece throughput.
Die mehrfache, insbesondere doppelte, Nutzung der Zwischentrocknungsstation 122 im Rahmen der Behandlung von Werkstücken in der Behandlungslinie 110 spart nicht nur Raum, sondern auch Energie und damit Kosten. The multiple, in particular double, use of the intermediate drying station 122 as part of the treatment of workpieces in the treatment line 110 not only saves space, but also energy and thus costs.
Optional kann vorgesehen sein, dass ausgehend vom primären Behandlungsbereich 112 der sekundäre Behandlungsbereich 114 von den Werkstücken mehrfach durchfahren werden kann. Hierdurch können insbesondere sehr komplexe Dekorlackapplikationen im Mehrschichtverfahren realisiert werden. Optionally, it can be provided that, starting from the primary treatment area 112, the secondary treatment area 114 can be passed through several times by the workpieces. This means that very complex decorative paint applications in particular can be realized using the multi-layer process.
Die Vertikalfördervorrichtungen 142, 144 können Hebevorrichtungen, Fahrstuhlvorrichtungen oder Karussellfördervorrichtungen oder dergleichen sein, mit welchen die Werkstücke entlang der Vertikalförderstrecken 146, 148 einzeln nacheinander oder kontinuierlich gefördert werden können. The vertical conveying devices 142, 144 can be lifting devices, elevator devices or carousel conveying devices or the like, with which the workpieces can be conveyed individually one after the other or continuously along the vertical conveying routes 146, 148.
Die Werkstücke sind vorzugsweise während der Förderung entlang der Vertikalförderstrecken 146, 148 gegen einen Absturz gesichert. The workpieces are preferably secured against falling during conveyance along the vertical conveyor lines 146, 148.
Ferner kann vorgesehen sein, dass eine der Vertikalfördervorrichtungen 142, 144 oder beide Vertikalfördervorrichtungen 142, 144 zusätzlich belüftet sind. Furthermore, it can be provided that one of the vertical conveying devices 142, 144 or both vertical conveying devices 142, 144 are additionally ventilated.
Die vertikale Endposition der ersten Vertikalfördervorrichtung 142 vor der Zwischentrocknungsstation 122, welche die Werkstücke überfahren, die in dem primären Behandlungsbereich 112 behandelt werden, kann die Abdunststation 120 als separate Abdunststation ersetzen, wobei dies insbesondere davon abhängig ist, welche Abdunstzeit für den in der Basislackstation 118 applizierten Basislack erforderlich ist, um den Lösemitteleintrag in der Zwischentrocknungsstation 122 zu reduzieren. The vertical end position of the first vertical conveyor device 142 in front of the intermediate drying station 122, which passes over the workpieces that are treated in the primary treatment area 112, can replace the evaporation station 120 as a separate evaporation station, this depending in particular on which Evaporation time for the basecoat applied in the basecoat station 118 is required in order to reduce the solvent entry in the intermediate drying station 122.
Die Startposition der zweiten Vertikalfördervorrichtung 144 nach der Kühlstation 124, welche von den Werkstücken zum Erreichen der Klarlackstation 126 überfahren wird, kann ebenfalls als Abdunststation und/oder Zwischenlagerstation eingesetzt werden. The starting position of the second vertical conveyor device 144 after the cooling station 124, which is passed over by the workpieces to reach the clear coat station 126, can also be used as an evaporation station and/or intermediate storage station.
Die Dekorlackstation 138 auf der sekundären Behandlungsebene 106 ist vorzugsweise unterhalb der Zwischentrocknungsstation 122 und/oder der Kühlstation 124 angeordnet, insbesondere in vertikaler Richtung direkt unter der Zwischentrocknungsstation 122 und/oder der Kühlstation 124. The decorative paint station 138 on the secondary treatment level 106 is preferably arranged below the intermediate drying station 122 and/or the cooling station 124, in particular in the vertical direction directly below the intermediate drying station 122 and/or the cooling station 124.
Die Werkstücke, welche mittels der ersten und der zweiten Vertikalförderrichtung 142, 144 vom ersten Bearbeitungsbereich 112 in den zweiten Bearbeitungsbereich 114 und zurück gefördert werden, ändern während des Durchlaufs ihre Orientierung nicht. Dies bedeutet insbesondere, dass keine Rotation um die Hochachse der Werkstücke erforderlich ist, um entlang der Vertikalförderstrecken 146, 148 förderbar zu sein, und dass außerdem der sekundäre Behandlungsbereich 114 in der sekundären Förderrichtung 134 von den Werkstücken rückwärts durchfahren werden kann. The workpieces, which are conveyed from the first processing area 112 into the second processing area 114 and back by means of the first and second vertical conveying directions 142, 144, do not change their orientation during the run. This means, in particular, that no rotation about the vertical axis of the workpieces is required in order to be able to be conveyed along the vertical conveying routes 146, 148, and that the workpieces can also travel backwards through the secondary treatment area 114 in the secondary conveying direction 134.
Nachfolgend wird der Behandlungsvorgang von Werkstücken, insbesondere das Lackieren von Fahrzeugkarosserien, exemplarisch anhand der Ausführungsform der Behandlungsanlage 100 gemäß Fig. 1 beschrieben, wobei die Beschreibung des Behandlungsvorgangs analog für die zweite und dritte Ausführungsform in den Fig. 2 und 3 gilt. The treatment process of workpieces, in particular the painting of vehicle bodies, is described below using the example of the embodiment of the treatment system 100 according to FIG. 1, the description of the treatment process applying analogously to the second and third embodiments in FIGS. 2 and 3.
Ein Werkstück, insbesondere eine Fahrzeugkarosserie, welches mit einer Horizontalfördervorrichtung in der primären Förderrichtung 116 durch den primären Behandlungsbereich 112 gefördert wird, erhält zunächst einen Basislack in der Basislackstation 118, wobei der Basislackapplikation ein Einfetten und/oder Phosphatieren vorausgegangen sein kann. A workpiece, in particular a vehicle body, which is conveyed through the primary treatment area 112 with a horizontal conveyor device in the primary conveying direction 116, first receives a base coat in the base coat station 118, whereby the base coat application may have been preceded by greasing and/or phosphating.
Anschließend dunstet das Werkstück mit Basislackierung ab, was auch als „Flash-Off“ bezeichnet wird. Dies geschieht entweder in der Abdunststation 120 oder an der Position der ersten Vertikalfördervorrichtung 142 vor der Zwischentrocknungsstation 122. Nach dem Abdunsten wird das Werkstück in der Zwischentrocknungsstation 122 getrocknet und nachfolgend in der Kühlstation 124 heruntergekühlt. The base coat is then evaporated from the workpiece, which is also referred to as “flash-off”. This happens either in the evaporation station 120 or at the position of the first vertical conveyor 142 in front of the intermediate drying station 122. After evaporation, the workpiece is dried in the intermediate drying station 122 and subsequently cooled down in the cooling station 124.
Im Anschluss an den Abkühlvorgang, d.h. in der Position vor der Klarlackstation 126, wird das zu behandelnde Werkstück entlang der Vertikalförderstrecke 146 mittels der zweiten Vertikalfördervorrichtung 144 von der primären Behandlungsebene 104 in die sekundäre Behandlungsebene 106 gefördert, um dort den sekundären Behandlungsbereich 114 in der sekundären Förderrichtung 134, welche der primären Förderrichtung 116 entgegengesetzt ist, zu durchlaufen. Following the cooling process, i.e. in the position in front of the clear coat station 126, the workpiece to be treated is conveyed along the vertical conveying path 146 by means of the second vertical conveying device 144 from the primary treatment level 104 into the secondary treatment level 106 in order to move the secondary treatment area 114 into the secondary Conveying direction 134, which is opposite to the primary conveying direction 116.
Die Werkstücke können dort zunächst in einer ersten Zwischenlagerstation 136 zwischengelagert werden, wobei sowohl die erste Zwischenlagerstation 136 als auch die zweite Zwischenlagerstation 140 im Rahmen der Prozesstaktung ein Ausschleusen bzw. Einschleusen von Werkstücken in den primären Bearbeitungsbereich 112 vereinfachen. The workpieces can initially be temporarily stored there in a first intermediate storage station 136, with both the first intermediate storage station 136 and the second intermediate storage station 140 simplifying the removal or introduction of workpieces into the primary processing area 112 as part of the process timing.
Anschließend wird ein Dekorlack in der Dekorlackstation 138 auf die Werkstücke appliziert, vorzugsweise in einem farbnebelfreien Vorgang. A decorative varnish is then applied to the workpieces in the decorative varnish station 138, preferably in a process free of paint mist.
Das Werkstück kann dann entweder in einer zusätzlichen Abdunststation oder in der zweiten Zwischenlagerstation 140 abdunsten, bevor es entlang der zweiten Vertikalförderstrecke 148 mittels der ersten Vertikalfördervorrichtung 142 vor die Zwischentrocknungsstation 122 gefördert wird, um diese erneut zu durchlaufen und dabei den applizierten Dekorlack zu trocknen. The workpiece can then evaporate either in an additional evaporation station or in the second intermediate storage station 140 before it is conveyed along the second vertical conveyor path 148 by means of the first vertical conveyor 142 in front of the intermediate drying station 122 in order to pass through it again and thereby dry the applied decorative varnish.
Das abermals getrocknete Werkstück wird dann erneut in der Kühlstation 124 abgekühlt und wird im Anschluss, d.h. am Ende des Abkühltaktes, in die Klarlackstation 126 gefördert, sofern keine zweite Dekorlackschicht vorgesehen ist. The workpiece, which has been dried again, is then cooled again in the cooling station 124 and is then conveyed to the clear varnish station 126, i.e. at the end of the cooling cycle, unless a second decorative varnish layer is provided.
Sollten eine zweite oder weitere Dekorlackschichten für das Werkstück vorgesehen sein, so sind der sekundäre Bearbeitungsbereich 114, die Zwischentrocknungsstation 122 und die Kühlstation 124 erneut zu durchlaufen. In der Klarlackstation 126 wird auf das Werkstück dann ein Klarlack appliziert und abschließend wird das fertig lackierte Werkstück in einer Trocknungsstation 128 vorzugsweise vollständig getrocknet. If a second or further decorative paint layer is provided for the workpiece, the secondary processing area 114, the intermediate drying station 122 and the cooling station 124 must be passed through again. A clear coat is then applied to the workpiece in the clear coat station 126 and finally the finished painted work piece is preferably completely dried in a drying station 128.
Die in Fig. 2 dargestellte, zweite Ausführungsform einer erfindungsgemäßen Behandlungsanlage 100 unterscheidet sich dahingehend von der ersten Ausführungsform gemäß Fig. 1, dass der sekundäre Behandlungsbereich 114 der Behandlungslinie 110 oberhalb des primären Behandlungsbereichs 112 der Behandlungslinie 110 angeordnet ist, d.h. die sekundäre Behandlungsebene 106 der Behandlungsanlage 100 befindet sich in diesem Fall oberhalb der primären Behandlungsebene 104. The second embodiment of a treatment system 100 according to the invention shown in Fig. 2 differs from the first embodiment according to Fig. 1 in that the secondary treatment area 114 of the treatment line 110 is arranged above the primary treatment area 112 of the treatment line 110, i.e. the secondary treatment level 106 of the In this case, treatment system 100 is located above the primary treatment level 104.
Der Ablauf des Behandlungsvorgangs bleibt dabei jedoch unverändert, außer dass die Werkstücke nach der Kühlstation 124 mittels der zweiten Vertikalfördervorrichtung 144 entlang der ersten Vertikalförderstrecke 146 von der primären Behandlungsebene 104 nach oben auf die zweite Behandlungsebene 106 gefördert werden, um dort in der sekundären Förderrichtung 134 den sekundären Behandlungsbereich 114 zu durchlaufen, an dessen Ende sie entlang der zweiten Vertikalförderstrecke 148 nach unten auf die primäre Behandlungsebene 104 zurückgefördert werden. Dort werden dann erneut die Zwischentrocknungsstation 122 und optional die Kühlstation 124 des primären Behandlungsbereichs 112 durchlaufen. However, the course of the treatment process remains unchanged, except that the workpieces are conveyed after the cooling station 124 by means of the second vertical conveyor device 144 along the first vertical conveyor path 146 from the primary treatment level 104 upwards to the second treatment level 106, in order to be there in the secondary conveying direction 134 secondary treatment area 114, at the end of which they are conveyed back down to the primary treatment level 104 along the second vertical conveyor section 148. There the intermediate drying station 122 and optionally the cooling station 124 of the primary treatment area 112 are then passed through again.
Eine derartige Anordnung der Behandlungsanlage 100 ist u.a. deshalb möglich, weil die Dekorlackapplikation in der Dekorlackstation 138 des sekundären Behandlungsbereichs 114 aufgrund ihrer Farbnebelfreiheit keine unter der Dekorlackstation 138 angeordnete Auswaschung oder sonstige aufwändige Luftreinigung erfordert. Such an arrangement of the treatment system 100 is possible, among other things, because the decorative paint application in the decorative paint station 138 of the secondary treatment area 114 does not require any washing or other complex air purification arranged under the decorative paint station 138 due to its freedom from paint mist.
Vorstellbar ist, dass zwischen der primären Behandlungsebene 104 und der sekundären Behandlungsebene 106 eine Zwischenebene angeordnet ist, in welcher für die Stationen des sekundären Behandlungsbereichs 114 notwendige Unterstützungsmodule oder Unterstützungsaggregate, wie Auswaschungsvorrichtungen oder Filtereinrichtungen, angeordnet sein können. It is conceivable that an intermediate level is arranged between the primary treatment level 104 and the secondary treatment level 106, in which support modules or support units necessary for the stations of the secondary treatment area 114, such as washout devices or filter devices, can be arranged.
Fig. 3 zeigt eine dritte Ausführungsform der Behandlungsanlage 100, bei welcher der primäre Behandlungsbereich 112 und der sekundäre Behandlungsbereich 114 der Behandlungslinie 110 auf einer gemeinsamen, insbesondere primären, Behandlungsebene 104 angeordnet sind. Demzufolge weist die Behandlungslinie anstatt zweier Vertikalfördervorrichtungen eine erste Querfördervorrichtung 152 und eine zweite Querfördervorrichtung 154 auf, um die Werkstücke entsprechend zwischen dem primären und dem sekundären Behandlungsbereich 112, 114 zu transferieren. 3 shows a third embodiment of the treatment system 100, in which the primary treatment area 112 and the secondary treatment area 114 of the treatment line 110 are on a common, in particular primary, Treatment level 104 are arranged. Accordingly, instead of two vertical conveyors, the treatment line has a first cross conveyor 152 and a second cross conveyor 154 to transfer the workpieces between the primary and secondary treatment areas 112, 114 accordingly.
Die gestrichelte, horizontale Linie 150 in Fig. 3 markiert eine reale oder virtuelle räumliche Trennung auf der primären Behandlungsebene 104 zwischen dem primären Behandlungsbereich 112 und dem sekundären Behandlungsbereich 114. The dashed horizontal line 150 in FIG. 3 marks a real or virtual spatial separation on the primary treatment level 104 between the primary treatment area 112 and the secondary treatment area 114.
In der dritten Ausführungsform werden die Werkstücke nach der Kühlstation 124 mit einer zweiten Querfördervorrichtung 154 entlang einer ersten Querförderstrecke 156 in den sekundären Behandlungsbereich 114 der Behandlungslinie 110 gefördert, um dort insbesondere den Dekorlack in der Dekorlackstation 138 appliziert zu bekommen. In the third embodiment, the workpieces are conveyed after the cooling station 124 with a second cross conveyor device 154 along a first cross conveyor path 156 into the secondary treatment area 114 of the treatment line 110, in particular to have the decorative paint applied there in the decorative paint station 138.
Im Anschluss an die Dekorlackapplikation und einer möglichen Zwischenlagerung in der zweiten Zwischenlagerstation 140 werden die Werkstücke entlang einer zweiten Querförderstrecke 158 mittels der ersten Querfördervorrichtung 152 zurück in den primären Behandlungsbereich 112 auf derselben, insbesondere der primären, Behandlungsebene 104 gefördert. Dort werden sie vor der Zwischentrocknungsstation 122 in den Decklackprozess des primären Behandlungsbereichs 112 zurückgeführt, um erneut die Zwischentrocknungsstation 122 und die Kühlstation 124 vor der Applikation eines Klarlacks in der Klarlackstation 126 zu durchlaufen. Following the decorative paint application and possible intermediate storage in the second intermediate storage station 140, the workpieces are conveyed along a second cross conveyor path 158 by means of the first cross conveyor device 152 back into the primary treatment area 112 on the same, in particular the primary, treatment level 104. There they are returned to the top coat process of the primary treatment area 112 before the intermediate drying station 122 in order to go through the intermediate drying station 122 and the cooling station 124 again before the application of a clear coat in the clear coat station 126.
Vorstellbar ist, dass mehrere Behandlungslinien 110 gemäß der in Fig. 3 dargestellten Ausführungsform, d.h. mit Querförderung auf einer Behandlungsebene, in den übereinander angeordneten Behandlungsebenen der Behandlungsanlage 100 angeordnet sind. Bezugszeichenliste It is conceivable that several treatment lines 110 according to the embodiment shown in FIG. 3, ie with transverse conveyance on a treatment level, are arranged in the treatment levels of the treatment system 100 arranged one above the other. Reference symbol list
100 Behandlungsanlage 100 treatment facility
102 Lackieranlage 102 paint shop
104 primäre Behandlungsebene 104 primary treatment level
106 sekundäre Behandlungsebene 106 secondary treatment level
108 EbenenbodenAdecke 108 level floorAceiling
110 Behandlungslinie 110 treatment line
112 primärer Behandlungsbereich 112 primary treatment area
114 sekundärer Behandlungsbereich114 secondary treatment area
116 primäre Förderrichtung 116 primary funding direction
118 Basislackstation 118 base coat station
120 Abdunststation 120 evaporation station
122 Zwischentrocknungsstation 122 intermediate drying station
124 Kühlstation 124 cooling station
126 Klarlackstation 126 clear coat station
128 Trocknungsstation 128 drying station
130 Filtereinrichtung der Basislackstation130 filter device of the base coat station
132 Filtereinrichtung der Klarlackstation132 Filter device of the clear coat station
134 sekundäre Förderrichtung 134 secondary conveying direction
136 erste Zwischenlagerstation 136 first interim storage station
138 Dekorlackstation 138 decorative paint station
140 zweite Zwischenlagerstation 140 second interim storage station
142 erste Vertikalfördervorrichtung 142 first vertical conveyor device
144 zweite Vertikalfördervorrichtung144 second vertical conveyor device
146 erste Vertikalförderstrecke 146 first vertical conveyor section
148 zweite Vertikalförderstrecke 148 second vertical conveyor section
150 (virtuelle) räumliche Trennung 150 (virtual) spatial separation
152 erste Querfördervorrichtung 152 first cross conveyor device
154 zweite Querfördervorrichtung 154 second cross conveyor device
156 erste Querförderstrecke 156 first cross conveyor section
158 zweite Querförderstrecke 158 second cross conveyor section
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022114424.0A DE102022114424A1 (en) | 2022-06-08 | 2022-06-08 | Treatment system for treating workpieces and method for treating workpieces |
| PCT/DE2023/100415 WO2023237157A1 (en) | 2022-06-08 | 2023-06-01 | Treatment plant for treating workpieces, and method for treating workpieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4536413A1 true EP4536413A1 (en) | 2025-04-16 |
Family
ID=86861940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23731943.9A Pending EP4536413A1 (en) | 2022-06-08 | 2023-06-01 | Treatment plant for treating workpieces, and method for treating workpieces |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20250325999A1 (en) |
| EP (1) | EP4536413A1 (en) |
| JP (1) | JP2025517962A (en) |
| KR (1) | KR20250020428A (en) |
| CN (1) | CN119317492A (en) |
| DE (2) | DE102022114424A1 (en) |
| WO (1) | WO2023237157A1 (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10232402A1 (en) | 2002-07-17 | 2004-02-12 | Witron Logistik + Informatik Gmbh | Buffer system for a motor vehicle body mass production line, has a number of parallel channels with lifting and transverse movements to hold bodies on work platforms |
| JP2009536872A (en) | 2006-05-12 | 2009-10-22 | デュール システムズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Coating equipment and method of operating coating equipment |
| DE102016001006A1 (en) | 2016-02-01 | 2017-08-03 | Eisenmann Se | Plant, treatment module and method of treating objects |
| DE102016119540A1 (en) * | 2016-10-13 | 2018-04-19 | Eisenmann Se | Temperature control device, surface treatment plant, manufacturing plant and process for the production of products |
| DE102017000640C5 (en) | 2017-01-25 | 2025-12-18 | Audi Ag | Coating plant and method for operating a coating plant |
| DE102020204104A1 (en) | 2020-03-30 | 2021-09-30 | Dürr Systems Ag | Treatment plant and method for treating workpieces |
| DE102020208251A1 (en) | 2020-07-01 | 2022-01-05 | Dürr Systems Ag | Treatment station, treatment system and method for treating workpieces |
| DE102020216426A1 (en) | 2020-12-21 | 2022-06-23 | Dürr Systems Ag | Treatment plant and method for treating workpieces |
-
2022
- 2022-06-08 DE DE102022114424.0A patent/DE102022114424A1/en not_active Withdrawn
-
2023
- 2023-06-01 DE DE112023002591.6T patent/DE112023002591A5/en active Pending
- 2023-06-01 CN CN202380044726.2A patent/CN119317492A/en active Pending
- 2023-06-01 US US18/861,817 patent/US20250325999A1/en active Pending
- 2023-06-01 EP EP23731943.9A patent/EP4536413A1/en active Pending
- 2023-06-01 WO PCT/DE2023/100415 patent/WO2023237157A1/en not_active Ceased
- 2023-06-01 KR KR1020247039865A patent/KR20250020428A/en active Pending
- 2023-06-01 JP JP2024569093A patent/JP2025517962A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025517962A (en) | 2025-06-12 |
| KR20250020428A (en) | 2025-02-11 |
| WO2023237157A1 (en) | 2023-12-14 |
| DE112023002591A5 (en) | 2025-05-22 |
| CN119317492A (en) | 2025-01-14 |
| DE102022114424A1 (en) | 2023-12-14 |
| US20250325999A1 (en) | 2025-10-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE102017000640C5 (en) | Coating plant and method for operating a coating plant | |
| EP1609532B1 (en) | Painting installation and corresponding operating process | |
| EP3459642B1 (en) | Powder coating assembly for coating a workpiece with coating powder | |
| EP2699359B1 (en) | Treatment unit, installation and method for the surface treatment of articles | |
| EP2101926B1 (en) | Coating system and method for the series coating of workpieces | |
| EP3199246B1 (en) | Installation, treatment module and method for the treatment of objects | |
| EP2595760B1 (en) | Treatment unit and assembly for the surface treatment of objects | |
| DE102008038760A1 (en) | processing concept | |
| EP2024102A1 (en) | Device and method for painting rims | |
| DE102007014207A1 (en) | Painting or coating plant for industrial production use | |
| DE102015218027A1 (en) | Modular processing system | |
| EP4126388A1 (en) | Treatment plant and method for treating workpieces | |
| DE102006022335A1 (en) | Coating plant for vehicle body painting, has transport section, along which multiple coating objects are transported and treated in treatment stations, where transport section are arranged in treatment stations | |
| EP4536413A1 (en) | Treatment plant for treating workpieces, and method for treating workpieces | |
| DE102019109976B4 (en) | Modular coating system and method for coating at least one component | |
| DE102018213760A1 (en) | elevator system | |
| DE102005011812B4 (en) | Painting system for vehicle bodies in large-scale production | |
| DE102005011811A1 (en) | Painting plant for vehicle bodies in mass production | |
| EP4263072A1 (en) | Treatment plant and method for treating workpieces | |
| DE102022122797A1 (en) | Method for setting up a treatment plant and treatment facility | |
| EP1521641A2 (en) | Method for coating, especially painting, objects | |
| DE102011115938B4 (en) | Production plant with a plurality of volume-dependent extension stages and method for designing such a production plant | |
| DE19945539B4 (en) | Spray coating system for vehicle bodies | |
| DE102005012312B4 (en) | Assembly line and method | |
| DE102022114008A1 (en) | Modular assembly system and method for assembling a workpiece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: UNKNOWN |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
| 17P | Request for examination filed |
Effective date: 20241204 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| DAV | Request for validation of the european patent (deleted) | ||
| DAX | Request for extension of the european patent (deleted) |