Processing device for processing workpiece and method for processing workpiece
By introducing multi-layer processing and transfer devices into the painting equipment and sharing an intermediate drying station, the space and energy consumption problems of existing equipment when applying decorative paint are solved, and simple integration and cost savings of decorative paint are achieved.
Patent Information
- Application Number
- CN202380044726.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-06-08
- Filing Date
- 2023-06-01
- Publication Date
- 2025-01-14
AI Technical Summary
Existing painting equipment requires multiple intermediate drying and clear varnish drying stations when applying integrated decorative paint, resulting in large equipment space requirements, high energy consumption, and complex control.
Introduce multiple processing levels and processing lines into the painting equipment, integrate the decorative paint application OFLA station into the topcoat process using existing equipment space, and transport workpieces between different levels through a transfer conveyor device, sharing intermediate drying stations and avoiding additional intermediate drying stations.
It achieves simple integration of decorative paint application, saving equipment space and energy consumption, and reducing costs.
Smart Images
Figure CN119317492A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to a processing device for processing workpieces, in particular for coating vehicle bodies. The processing device is therefore in particular a component of a painting plant for painting vehicle bodies. The invention also relates to a corresponding method for processing workpieces. Background Art
[0002] In practice, plants are increasingly being used that allow for more individual and diversified paint applications. For example, decorative paints can be applied in addition to or as a partial alternative to conventional topcoats. Decorative paint application can be integrated in different ways into standard paint plants, which typically have a number of treatment and / or intermediate levels.
[0003] The first possibility for this integration is online process integration, in which the decorative paint application is fully integrated into the standard topcoat process. The station provided for the topcoat application is, for example, one of a plurality of stations arranged one after another in a defined order along the conveying direction. In detail, here, after applying the primer and if necessary, after intermediate drying of the corresponding workpiece in the intermediate drying station, the decorative paint is applied on the same processing level (Behandlungsebene). Therefore, an additional intermediate drying station is required after the decorative paint is applied. Then the varnish can be applied next. This first possibility of the integrated decorative paint station is preferably selected in the case of greenfield planning (Greenfield-Ansatz), that is, in the case of a newly established processing equipment, because basically all stations are still freely arranged.
[0004] In the second possibility, the integration is carried out in an offline process, for which, in particular after applying the primer and subsequently drying in an intermediate drying station, the vehicle body is output from the process for applying the decorative paint, which is called the so-called "roll-out". Thus, the decorative paint can be applied, for example, at a process level of a painting plant that is different from the process level of a standard topcoat process. In the offline process integration, an additional intermediate drying station is also required after the decorative paint is applied. After the vehicle body is intermediately dried in the roll-out area, it is input again into the standard topcoat process before the clearcoat station, which is called the so-called "roll-in". This type of option for the integration of the decorative paint application is suitable for brownfield planning (Brownfield-Ansatz), i.e., integration into existing equipment, where modifications or direct integration into the standard topcoat process are no longer feasible or are too expensive and laborious.
[0005] The third and fourth possibilities for decorative paint application presuppose the application of a single-layer topcoat, which is also referred to as “mono layer coat” or “monocoat” for short, and likewise involve offline process integration.
[0006] 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 receives a corresponding single-coat paint there. In this process, no additional intermediate drying station is required after the decorative paint is applied, but rather a new separate drying station.
[0007] In a fourth possibility, the decorative paint and clearcoat application are carried out simultaneously in an OFLA station, wherein here, too, the vehicle body is transported to a separate OFLA station or OFLA line after the standard topcoat process. In this process option, an additional intermediate drying station is also required after the decorative paint application and another clearcoat drying station is also required after the clearcoat application.
[0008] In summary, it can be determined that, to date, the application of decorative paint in an OFLA station has only been integrated into the painting process when the entire topcoat process is drawn up in line, wherein the OFLA station is often arranged on the same level as the topcoat process. For cases in which the OFLA station for applying the decorative paint must or should be independent, an additional intermediate drying station and possibly a clearcoat drying station are required.
[0009] Therefore, multiple or additional intermediate drying stations and / or varnish drying stations are required, which not only requires a large area or is larger than other equipment, but also makes the control process more demanding and the energy consumption of such a painting plant increases or increases. Summary of the invention
[0010] The object of the present invention is to provide a processing device which enables simple and compact process integration of decorative paint application.
[0011] According to the present invention, this object is achieved by a processing device having the characteristics of the following technical solution.
[0012] The processing device is used for processing workpieces. In particular, the processing device is a painting device for coating vehicle bodies.
[0013] The processing device preferably comprises:
[0014] - a plurality of processing levels arranged at different height levels, in particular arranged one above the other; and / or
[0015] one or more processing lines, in particular arranged parallel to one another, comprising a plurality of processing areas arranged on one and / or a plurality of processing levels;
[0016] Each processing zone has one or more processing stations for respectively carrying out one or more processing steps, and each processing line has one or at least two transfer conveyor devices, by means of which workpieces can be transferred between the processing zones.
[0017] The invention is based on the basic idea that in a processing plant, in particular a painting plant for vehicle bodies, in which workpieces, in particular vehicle bodies, are processed on one or more levels, existing and unused plant space is utilized to integrate an OFLA station, in particular for the application of decorative paint, into the topcoat process. For example, the unused space is located between the filter mechanisms of the clearcoat station and the primer station, wherein these filter devices are preferably arranged on a level below the level of the topcoat process. The topcoat process level is also referred to as the "top coating level" or "TC level". Thus, the workpieces can be transported on the TC level after the intermediate drying station by means of a transfer conveyor device to a processing area in which the decorative paint is applied. As previously mentioned, the processing area is preferably located below the TC level, wherein the workpieces are transported on another or lower level in a direction opposite to the conveying direction of the TC level through the station provided for the application of decorative paint. After the decorative paint has been applied, the workpiece is then transported to the TC level or to the topcoat process and preferably in front of its intermediate drying station by means of a further transfer conveyor device, so that no additional intermediate drying station has to be provided after the decorative paint has been applied, but the intermediate drying stations of the topcoat process can also be used in a shared manner and, if necessary, multiple times, as long as multiple decorative paint layers are desired or required for the respective workpiece.
[0018] Alternatively, it can also be provided that the transfer between the treatment areas is carried out with only one transfer conveyor device, in particular in the case where a transfer between one or more different positions of a treatment area and one or more different positions of another treatment area can be carried out in both directions by means of this one transfer conveyor device.
[0019] Advantageously, the processing line comprises a The primary processing area in the conveying direction and the secondary Secondary processing area in the conveying direction.
[0020] Preferably, the primary treatment area corresponds to a topcoat process area, whereas the secondary treatment area preferably comprises a decorative paint station, in particular an OFLA station.
[0021] It can also be provided that the primary processing area has a primary horizontal transport device for transporting the workpieces in a primary transport direction, and the secondary processing area has a secondary horizontal transport device for transporting the workpieces in a secondary transport direction.
[0022] The horizontal conveyor can be a conveyor line, wherein the workpiece to be processed can be mounted on a carriage that is transported through the processing area accordingly. Alternatively to this, one or more conveyors without carriages can be provided partially or entirely.
[0023] It may be advantageous in particular if the primary horizontal conveyor device and / or the secondary horizontal conveyor device comprises or is formed by an unmanned transport vehicle and / or transport system.
[0024] The primary horizontal conveyor and the secondary horizontal conveyor can be different types of horizontal conveyors. However, it is advantageous that the primary horizontal conveyor and the secondary horizontal conveyor are formed by the same type of horizontal conveyor, for example, by roller conveyors, track conveyors or unmanned transport systems.
[0025] It may be advantageous if the primary conveying direction and the secondary conveying direction are opposite and preferably oriented at least approximately parallel to one another. In particular, the conveying directions are oriented antiparallel to one another.
[0026] Thereby, the workpieces transferred back from the secondary processing region to the primary processing region can be integrated at the location of the primary processing region so that they pass through at least one processing station of the primary processing region again.
[0027] It may be particularly advantageous if the workpiece can be transferred from the secondary processing area to the primary processing area by means of a first transfer conveyor device, and if the workpiece can be transferred from the primary processing area to the secondary processing area by means of a second transfer conveyor device.
[0028] The two transfer conveying devices preferably allow for cyclic transport of the workpieces, wherein the workpieces preferably pass through the entire secondary processing area at least once and pass through the primary processing area, ie, at least partially, multiple times, preferably twice, through at least one processing station of the primary processing area.
[0029] It may be advantageous if the workpieces can be transported through the secondary treatment area in the same orientation as in the primary treatment area.
[0030] It can be particularly advantageous if the workpiece does not have to be rotated about its vertical axis in order to be transferred between the processing areas by the transfer conveyor.
[0031] In particular, it can be provided that the workpieces can be transported through the secondary processing area in a direction counter to the primary transport direction.
[0032] It may be advantageous if the primary treatment area has at least the following treatment stations arranged one behind the other along the primary transport direction:
[0033] - Primer station;
[0034] -Optional evaporation station;
[0035] - Intermediate drying station;
[0036] - Optional cooling station;
[0037] - Varnishing station; and
[0038] - Drying station.
[0039] The evaporation station is therefore optional, since the position of the transfer conveyor before the intermediate drying station, which is otherwise bypassed, can also be used for evaporation, as long as the process cycle does not require the workpieces to be transported from the secondary treatment area to the primary treatment area.
[0040] The cooling station is therefore optional, since cooling within the intermediate drying station is also conceivable.
[0041] Furthermore, the arrangement of the evaporation station and / or cooling station depends on the predetermined parameters of the paint supplier or the requirements of the paint used.
[0042] It may be advantageous if the secondary treatment area has at least the following treatment stations arranged one behind the other in the secondary transport direction:
[0043] - an optional intermediate storage station, in particular a first intermediate storage station;
[0044] - Topcoat stations, especially those without paint mist;
[0045] - Optional evaporation station; and
[0046] An optional intermediate storage station, in particular a second intermediate storage station.
[0047] It should be understood that the listed processing stations in the secondary processing area can also be arranged in other orders along the secondary conveying direction. Therefore, this enumeration should not be understood as the only possible order of the processing stations. This is similarly applicable to the processing stations in the primary processing area.
[0048] One or more intermediate storage stations, in particular the first intermediate storage station and / or the second intermediate storage station, are used, for example, as a buffer in a process cycle. Alternatively or additionally, it can be provided that one or more intermediate storage stations, in particular the second intermediate storage station, can be used as an evaporation station or is available as an evaporation station.
[0049] It can also be provided that, in the primary treatment area, the first transfer conveyor device is arranged between the primer station and the intermediate drying station, and the second transfer conveyor device is arranged between the intermediate drying station and the clearcoat station.
[0050] It can also be provided that in the secondary treatment area the first transfer conveyor device is arranged downstream of the topcoat station and / or downstream of the intermediate storage station, in particular the second intermediate storage station.
[0051] In the secondary treatment area, the second transfer conveyor device is preferably arranged upstream of the topcoat station and / or upstream of an intermediate storage station, in particular the first intermediate storage station.
[0052] The workpieces can thereby preferably be transported multiple times through the intermediate drying and cooling stations.
[0053] Thus, the intermediate drying station of the primary treatment area can be used multiple times in an advantageous manner, which means that no additional intermediate drying station is preferably required in the secondary treatment area. This can preferably save costs and plant space and also make it possible to easily integrate the decorative paint application into existing primary treatment areas, in particular standard topcoat processes.
[0054] In another embodiment of the present invention, it may be provided that the secondary processing area is arranged on a processing level below or above the processing level of the primary processing area, wherein the first transfer conveyor device and the second transfer conveyor device are preferably vertical conveyor devices.
[0055] In another embodiment of the invention, it can be provided that the secondary processing area is arranged on the lowest processing level, in particular the zero level.
[0056] Such an arrangement of the secondary treatment area including the decorative paint station is preferably possible, since the decorative paint application is preferably carried out in a paint mist-free manner and thus no cleaning or other air purification is required below the decorative paint station.
[0057] In another embodiment of the invention, it can be provided that the primary treatment area and the secondary treatment area are arranged side by side on a treatment level, wherein the first transfer conveyor device and the second transfer conveyor device are preferably transverse conveyor devices.
[0058] This arrangement provides an alternative when there is insufficient equipment space below or above the primary treatment area, especially at the height of the intermediate drying station or cooling station, to add or modify a secondary treatment area.
[0059] It is also an object of the present invention to provide a method which enables efficient operation of a treatment plant using a treatment plant of simple and compact construction.
[0060] According to the present invention, this object is achieved by a method according to the following technical solution.
[0061] The method is, in particular, a method for processing workpieces, in particular for painting vehicle bodies.
[0062] The method may in particular have one or more of the features and / or advantages described in conjunction with the processing device.
[0063] The method preferably comprises:
[0064] The workpieces are processed in a plurality of processing areas of the processing line, in particular in a primary processing area and a secondary processing area, each of which has one or more processing stations for respectively carrying out one or more processing steps.
[0065] In another design of the present invention, it can be provided that the method further comprises:
[0066] - Transferring workpieces between processing zones, wherein the processing zones are arranged on one or more processing levels of a processing device and / or wherein the processing zones have opposing transport directions.
[0067] It may be advantageous if the workpiece is transported through at least one of the processing zones several times, in particular at least twice.
[0068] Furthermore, it may 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 from which the workpieces are transferred back to the primary treatment area before the intermediate drying station by means of another transfer conveyor device.
[0069] It can also be provided that the workpiece does not change its orientation, in particular does not rotate, when it is transferred between the processing areas. Therefore, preferably during the entire processing in the primary processing area and the secondary processing area and also during the transfer between the processing areas, the orientation of the workpiece relative to the main conveying direction of the processing device remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS
[0070] Further preferred features and / or advantages of the invention are the subject matter of the following description of exemplary embodiments and of the drawings.
[0071] In the attached picture:
[0072] Figure 1 A schematic diagram showing a first embodiment of a processing device according to the present invention;
[0073] Figure 2 A schematic diagram showing a second embodiment of a processing device according to the present invention; and
[0074] Figure 3A schematic diagram of a third embodiment of a processing device according to the invention is shown.
[0075] Identical or functionally equivalent elements are provided with the same reference symbols in all figures. DETAILED DESCRIPTION
[0076] The overall number of processing equipment is 100. Figure 1 The first embodiment shown is used for processing workpieces.
[0077] The treatment plant 100 is, in particular, a painting plant 102 for painting vehicle bodies.
[0078] The processing device 100 comprises a primary processing level 104 and a secondary processing level 106 which are arranged one above the other.
[0079] The horizontal dashed line indicated at 108 schematically represents the bottom of the primary processing level 104 and / or the top of the secondary processing level 106 located therebelow.
[0080] The processing device 100 further comprises a processing line 110 .
[0081] The processing device 100 may include further processing lines, which are preferably arranged in parallel to the shown processing line 110 .
[0082] The processing line 110 includes a primary processing region 112 disposed on the primary processing level 104 and a secondary processing region 114 disposed on the secondary processing level 106 .
[0083] The primary processing area 112 includes a primer station 118 , an evaporation station 120 , an intermediate drying station 122 , a cooling station 124 , a clear varnish station 126 and a drying station 128 in sequence along a primary conveying direction 116 .
[0084] The evaporation station 120 and the cooling station 124 are optional in the primary treatment area 112, as their application depends mainly on the predetermined parameters of the paint supplier, etc.
[0085] In accordance with Figure 1 In one embodiment of the processing device 100, the filter mechanism 130 of the primer station 118 and the other filter mechanism 132 of the varnish station 126 are arranged on the secondary processing level 106 below the primary processing area 112, preferably directly vertically below the primer station 118 and the varnish station 126, respectively.
[0086] However, the filter device 130 and / or the filter device 132 may also be arranged above the primary treatment area 112 or, alternatively, on the primary treatment level 104 .
[0087] In primer station 118 a primer is applied to the workpiece, and in clearcoat station 126 a clearcoat is applied to the workpiece.
[0088] The primer application performed in the primer station 118 can be realized in-line or in a box. The same applies to the clearcoat application performed in the clearcoat station 126.
[0089] The primary processing area 112 further comprises a horizontal transport device (not shown), by means of which the workpieces can be transported along a primary transport direction 116 through the primary processing area 112 .
[0090] The horizontal conveying device can be, for example, a roller conveyor, a rail conveyor or an unmanned transport system.
[0091] The secondary processing area 114 is preferably arranged in the available space between the filtering mechanism 130 and the filtering mechanism 132.
[0092] Alternatively, the secondary processing area 114 may be arranged below the intermediate drying station 122 and / or the cooling station 124 .
[0093] The secondary processing area 114 includes an optional first intermediate storage station 136, a decorative paint station 138 and an optional second intermediate storage station 140 in sequence along the secondary conveying direction 134, wherein the order of the first intermediate storage station 136, the decorative paint station 138 and the second intermediate storage station 140 along the secondary conveying direction 134 is arbitrary.
[0094] An optional (further) evaporation station may also be arranged between the decorative paint station 138 and the second intermediate storage station 140 .
[0095] Furthermore, it can be provided that the first intermediate storage station 136 and / or the second intermediate storage station 140 is used not only for preferably short-term intermediate storage of workpieces so that the workpieces can easily enter the predetermined process cycle, especially when re-entering the primary treatment area 112, but can also be used as evaporation stations.
[0096] In the decorative paint station 138, decorative paint is applied to the workpiece, wherein the paint application is preferably 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).
[0097] Alternatively, the decorative paint can also be applied in a conventional manner, namely by means of so-called masking and demasking using atomizer technology.
[0098] In accordance with Figure 1In an embodiment of the treatment device 100, the secondary treatment level 106 is preferably a zero level, in particular a so-called concrete level. This can be achieved in particular by the fact that the decorative paint application in the form of a paint application without paint mist does not require potential cleaning or other complex air purification.
[0099] In addition, a first vertical conveying device 142 and a second vertical conveying device 144 are integrated in the primary processing area 112 and the secondary processing area 114 of the processing line 110 , by means of which workpieces can be transferred between the primary processing area 112 and the secondary processing area 114 .
[0100] The second vertical conveying device 144 is arranged after the cooling station 124 and vertically conveys the cooled workpieces along a first vertical conveying section 146 onto the secondary processing level 106 before or into the first intermediate storage station 136 .
[0101] In the case where the second vertical transport device 144 is not required due to the process, the cooled workpieces can be transported directly to the varnishing station 126 after the cooling station 124 .
[0102] In the secondary processing area 114 , a horizontal transport device (not shown) likewise transports the workpieces along a secondary transport direction 134 through the processing stations.
[0103] From the second intermediate storage station 140 or from a position after the second intermediate storage station 140, the workpiece provided with decorative paint is transported by means of a first vertical conveying device 142 along a second vertical conveying section 148 to the primary processing level 104 in front of the intermediate drying station 122, so that the decorative paint can then be dried in the intermediate drying station 122 in the next conveying cycle.
[0104] The intermediate drying station 122 is preferably designed according to the increased workpiece throughput thus obtained.
[0105] The multiple, in particular double, use of the intermediate drying station 122 within the scope of the processing of the workpieces in the processing line 110 not only saves space but also saves energy and thus saves costs.
[0106] Optionally, provision can be made for the workpiece to pass through the secondary treatment region 114 several times, starting from the primary treatment region 112. In particular, this makes it possible to implement very complex decorative paint applications in a multi-layer process.
[0107] The vertical conveying devices 142 , 144 can be lifting devices, elevator devices, or rotary conveying devices, etc., with which the workpieces can be conveyed along the vertical conveying sections 146 , 148 individually one after another or continuously.
[0108] The workpieces are preferably secured to prevent falling during transport along the vertical transport sections 146 , 148 .
[0109] Furthermore, it may be provided that one of the vertical conveying devices 142 , 144 or both vertical conveying devices 142 , 144 are additionally ventilated.
[0110] The vertical end position of the first vertical conveyor device 142 before the intermediate drying station 122 can replace the evaporation station 120 as a separate evaporation station, through which the workpieces treated in the primary treatment area 112 pass, wherein this depends in particular on how long the evaporation time of the primer applied in the primer station 118 is required to reduce the solvent entering the intermediate drying station 122.
[0111] The starting position of the second vertical conveyor 144 after the cooling station 124 , through which the workpieces reach the clearing station 126 , can likewise be used as an evaporation station and / or intermediate storage station.
[0112] The decorative paint station 138 on the secondary processing level 106 is preferably arranged below the intermediate drying station 122 and / or the cooling station 124 , in particular, directly below the intermediate drying station 122 and / or the cooling station 124 in the vertical direction.
[0113] The workpieces transported from the first processing area 112 to the second processing area 114 and back by means of the first vertical transport device 142 and the second vertical transport device 144 do not change their orientation during the passage. This means in particular that no rotation about the vertical axis of the workpiece is required for transport along the vertical transport sections 146, 148 and that the workpieces can also pass through the secondary processing area 114 in the opposite direction in the secondary transport direction 134.
[0114] In the following, based on the processing device 100 according to Figure 1 The embodiments of the present invention describe by way of example a treatment process for a workpiece, in particular the painting of a vehicle body, wherein the description of the treatment process applies in a similar manner to Figure 2 and Figure 3 The second and third embodiments of the present invention.
[0115] Workpieces, in particular vehicle bodies, which are transported by means of a horizontal conveyor in a primary transport direction 116 through the primary treatment area 112 are first primed in a primer station 118 , wherein they may have been oiled and / or phosphated before the primer is applied.
[0116] Next, the workpiece with the primer is evaporated, which is also referred to as “air drying.” This occurs in the evaporation station 120 or at the location of the first vertical conveyor 142 before the intermediate drying station 122 .
[0117] After evaporation, the workpiece is dried in an intermediate drying station 122 and subsequently cooled in a cooling station 124 .
[0118] Following the cooling process, i.e., in a position before the varnish station 126 , the workpiece to be processed is transported from the primary processing level 104 to the secondary processing level 106 along a vertical conveying section 146 by means of a second vertical conveying device 144 , so as to pass through the secondary processing area 114 there along a secondary conveying direction 134 opposite to the primary conveying direction 116 .
[0119] There, the workpieces can first be temporarily stored in the first intermediate storage station 136 , wherein the first intermediate storage station 136 and the second intermediate storage station 140 simplify the removal or introduction of the workpieces into the primary processing area 112 within the scope of a process cycle.
[0120] Next, a decorative paint is applied to the workpiece in a decorative paint station 138 , preferably in a paint mist-free process.
[0121] The workpieces can then be evaporated in an additional evaporation station or second intermediate storage station 140 before being transported by means of first vertical transport device 142 along second vertical transport section 148 to intermediate drying station 122 in order to pass through it again and dry the applied decorative paint there.
[0122] The workpiece, which has been dried once more, is then cooled again in the cooling station 124 and, unless a second decorative lacquer layer is applied, is subsequently conveyed, ie at the end of the cooling cycle, to the clear varnishing station 126 .
[0123] If the workpiece is to be provided with a second or further decorative lacquer layer, it again passes through the secondary processing region 114 , the intermediate drying station 122 and the cooling station 124 .
[0124] The varnish is then applied to the workpiece in a varnishing station 126 , and the finished painted workpiece is finally preferably completely dried in a drying station 128 .
[0125] The processing device 100 according to the present invention is as follows: Figure 2 The second embodiment shown is similar to the Figure 1 The first embodiment differs in that the secondary processing area 114 of the processing line 110 is arranged above the primary processing area 112 of the processing line 110 , ie the secondary processing level 106 of the processing device 100 is located above the primary processing level 104 in this case.
[0126] However, the flow of the processing remains unchanged here, except that the workpiece is transported upward from the primary processing level 104 to the secondary processing level 106 by means of the second vertical conveying device 144 after the cooling station 124 along the first vertical conveying route 146, so as to pass through the secondary processing area 114 there in the secondary conveying direction 134, and the workpiece is transported downward along the second vertical conveying section 148 at the end of the secondary processing area back to the primary processing level 104. There, it then passes through the intermediate drying station 122 of the primary processing area 112 again and optionally passes through the cooling station 124.
[0127] This type of arrangement of the processing device 100 is possible primarily because the decorative paint application in the decorative paint station 138 of the secondary processing area 114 does not require a cleaning section or other complex air purification sections arranged below the decorative paint station 138 due to its paint mist-free properties.
[0128] It is conceivable to arrange an intermediate level between the primary treatment level 104 and the secondary treatment level 106 , in which the support modules or support components required for the stations of the secondary treatment region 114 , such as cleaning devices or filter means, can be arranged.
[0129] Figure 3 A third embodiment of a processing device 100 is shown, in which the primary processing area 112 and the secondary processing area 114 of a processing line 110 are arranged on a common, in particular primary processing level 104. Therefore, the processing line has a first transverse conveyor 152 and a second transverse conveyor 154 instead of two vertical conveyors in order to transfer the workpieces between the primary processing area 112 and the secondary processing area 114, respectively.
[0130] Figure 3 The dashed horizontal line 150 in FIG. 1 marks the real or virtual spatial separation between the primary processing area 112 and the secondary processing area 114 on the primary processing level 104 .
[0131] In the third embodiment, after the cooling station 124 , the workpieces are transported by a second transverse transport device 154 along a first transverse transport section 156 into the secondary treatment area 114 of the treatment line 110 in order to receive there, in particular, the decorative paint applied in the decorative paint station 138 .
[0132] Following the decorative paint application and possible intermediate storage in the second intermediate storage station 140, the workpieces are transported back to the primary treatment area 112 along the second transverse transport section 158 by means of the first transverse transport device 152 on the same, in particular primary treatment level 104. There, the workpieces are transported back to the topcoat process in the primary treatment area 112 before the intermediate drying station 122 in order to pass through the intermediate drying station 122 and the cooling station 124 again before the clearcoat is applied in the clearcoat station 126.
[0133] It can be considered that according to Figure 3 The embodiment shown, namely a plurality of processing lines 100 with transverse transport on a processing level, is arranged in processing levels of a processing system 100 which are arranged one above the other.
[0134] Description of Reference Numerals
[0135] 100 Processing equipment
[0136] 102 Painting equipment
[0137] 104 One-time processing level
[0138] 106 Secondary Processing Level
[0139] 108 level bottom / top
[0140] 110 Processing Line
[0141] 112 Primary treatment area
[0142] 114 Secondary processing area
[0143] 116 Primary conveying direction
[0144] 118 Primer Station
[0145] 120 Evaporation Station
[0146] 122 Intermediate Drying Station
[0147] 124 Cooling Station
[0148] 126 Varnishing Station
[0149] 128 Drying Station
[0150] 130 Filter mechanism for primer station
[0151] 132 Filter mechanism of varnish station
[0152] 134 Secondary conveying direction
[0153] 136 First Intermediate Storage Station
[0154] 138 Decorative Paint Station
[0155] 140 Second intermediate storage station
[0156] 142 first vertical conveying device
[0157] 144 Second vertical conveying device
[0158] 146 The first vertical conveying section
[0159] 148 Second vertical conveying section
[0160] 150 (Virtual) Space Separation
[0161] 152 First transverse conveying device
[0162] 154 Second transverse conveying device
[0163] 156 First transverse conveying section
[0164] 158 Second transverse conveying section
Claims
1. A processing device (100) for processing a workpiece, in particular for coating a vehicle body, wherein the processing device (100) comprises: - a plurality of processing levels (104, 106) arranged at different height levels, in particular arranged one above the other; and / or - one or more, in particular mutually parallel, processing lines (110) comprising a plurality of processing areas (112, 114) arranged on one and / or a plurality of processing levels (104, 106); Each processing area (112, 114) has one or more processing stations (118, 120, 122, 124, 126, 128, 136, 138, 140) for respectively performing one or more processing steps, and each processing line (110) has one or at least two transfer conveying devices (142, 144, 152, 154), by means of which the workpiece can be transferred between the processing areas (112, 114).
2. The processing device (100) according to claim 1, characterized in that The processing line (110) includes a primary processing area (112) having a primary transport direction (116) and a secondary processing area (114) having a secondary transport direction (134).
3. The processing device (100) according to claim 2, characterized in that The primary processing area (112) has a primary horizontal conveying device for conveying the workpiece along the primary conveying direction (116), and the secondary processing area (114) has a secondary horizontal conveying device for conveying the workpiece along the secondary conveying direction (134).
4. The processing device (100) according to claim 3, characterized in that The primary horizontal conveying device and / or the secondary horizontal conveying device are formed by conveying devices of the same type, in particular by roller conveyors, rail conveyors or driverless transport systems.
5. The processing device (100) according to any one of claims 2 to 4, characterized in that The primary transport direction (116) and the secondary transport direction (134) are opposite and preferably oriented at least substantially parallel to each other.
6. The processing device (100) according to any one of claims 2 to 5, characterized in that The workpiece can be transferred from the secondary processing area (114) to the primary processing area (112) by means of a first transfer and conveying device (142, 152), and the workpiece can be transferred from the primary processing area (112) to the secondary processing area (114) by means of a second transfer and conveying device (144, 154).
7. The processing device (100) according to any one of claims 2 to 6, characterized in that The workpiece can be transported through the secondary processing area (114) in the same orientation as in the primary processing area (112).
8. The processing device (100) according to any one of claims 2 to 7, characterized in that The workpiece can be transported through the secondary processing area (114) counter to the primary transport direction (116).
9. The processing device (100) according to any one of claims 2 to 8, characterized in that The primary processing area (112) has at least the following processing stations arranged one after another along a primary transport direction (116): - a primer station (118); and / or - an optional evaporation station (120); and / or - an intermediate drying station (122); and / or - an optional cooling station (124); and / or - a varnishing station (126); and / or - Drying station (128).
10. The processing device (100) according to any one of claims 2 to 9, characterized in that The secondary processing area (114) has at least the following processing stations arranged one after another along the secondary transport direction (134): - a first intermediate storage station (136); and / or - a topcoat station (138), in particular a topcoat station free of paint mist; and / or - evaporation station; and / or - A second intermediate storage station (140).
11. The processing device (100) according to claim 9 or 10, characterized in that In the primary processing area (112), the first transfer conveyor device (142, 152) is arranged between the primer station (118) and the intermediate drying station (122), and the second transfer conveyor device (144, 154) is arranged between the intermediate drying station (122) and the clear varnish station (124), and In the secondary processing area (114), the first transfer conveying device (142, 152) is arranged after the topcoat station (138) and / or after an intermediate storage station, in particular a second intermediate storage station (140), and the second transfer conveying device (144, 154) is arranged before the topcoat station (138) and / or before an intermediate storage station, in particular a first intermediate storage station (136). The workpiece can thus be transported through the intermediate drying station (122) and the cooling station (124) multiple times.
12. The processing device (100) according to any one of claims 2 to 11, characterized in that The secondary processing area (114) is arranged on a processing level (106) below or above the processing level (104) of the primary processing area (112), wherein the first transfer conveyor device (142) and the second transfer conveyor device (144) are preferably vertical conveyor devices.
13. The processing device (100) according to any one of claims 2 to 12, characterized in that The secondary processing area (114) is arranged on the lowest processing level (106), in particular the zero level.
14. The processing device (100) according to any one of claims 2 to 11, characterized in that: The primary processing area (112) and the secondary processing area (114) are arranged side by side on a common processing level (104), wherein the first transfer conveyor device (152) and the second transfer conveyor device (154) are preferably transverse conveyor devices.
15. A method for treating a workpiece, in particular for coating a vehicle body, comprising: - Processing workpieces in a plurality of processing areas (112, 114) of a processing line (110), in particular in a primary processing area (112) and a secondary processing area (114), each of which has one or more processing stations (118, 120, 122, 124, 126, 128, 136, 138, 140) for respectively performing one or more processing steps.
16. The method according to claim 15, wherein the method further comprises: - transferring the workpiece between the processing areas (112, 114), wherein the processing areas (112, 114) are arranged on one or more processing levels (104, 106) of a processing device (100) and / or wherein the processing areas (112, 114) have opposite transport directions (116, 134).
17. The method according to claim 15 or 16, characterized in that The workpiece is transported multiple times, in particular at least twice, through at least one of the processing areas (112, 114), in particular a section of the first processing area (112).
18. The method according to any one of claims 15 to 17, characterized in that The primary processing area (112) has an intermediate drying station (122), after which the workpiece is transferred to the secondary processing area (114) by means of a transfer conveying device (144, 154), and the workpiece is transferred from the secondary processing area (114) back to the primary processing area (112) to before the intermediate drying station (122) by means of another transfer conveying device (142, 152).
19. The method according to any one of claims 15 to 18, characterized in that The workpiece does not change its orientation, in particular does not rotate, when it is transferred between the processing areas (112, 114).