WO2010133624A2 - Verfahren und beschichtungsanlage zum versehen eines werkstücks mit einer beschichtung - Google Patents
Verfahren und beschichtungsanlage zum versehen eines werkstücks mit einer beschichtung Download PDFInfo
- Publication number
- WO2010133624A2 WO2010133624A2 PCT/EP2010/056869 EP2010056869W WO2010133624A2 WO 2010133624 A2 WO2010133624 A2 WO 2010133624A2 EP 2010056869 W EP2010056869 W EP 2010056869W WO 2010133624 A2 WO2010133624 A2 WO 2010133624A2
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- WIPO (PCT)
- Prior art keywords
- workpiece
- coating
- zone
- drying
- longitudinal
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/16—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of materials being carried by wheeled trucks
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- 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
- B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
- B05B13/0436—Installations or apparatus for applying liquid or other fluent material to elongated bodies, e.g. light poles, pipes
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C15/00—Enclosures for apparatus; Booths
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/28—Drying solid materials or objects by processes involving the application of heat by radiation, e.g. from the sun
Definitions
- the present invention relates to a method for providing a workpiece with a coating, comprising the following method steps:
- Drying of the workpiece by means of a drying device Drying of the workpiece by means of a drying device.
- the total processing time of a workpiece is composed in this known method from the time required for coating the workpiece, the heating of the process booth, the drying of the workpiece and the cooling of the process booth times, which limits the capacity of the coating system and the coating process performed therewith.
- the present invention is based on the object, a method for providing a workpiece with a coating of the aforementioned To create kind, which has an increased capacity and is particularly suitable for very long workpieces.
- This object is achieved in a method with the features of the preamble of claim 1 according to the invention in that the workpiece is moved relative to the drying device after the coating of the workpiece has been started and before the drying of the workpiece is completed.
- the present invention is therefore based on the concept not to leave the workpiece stationary during the entire, the coating and the drying of the workpiece processing relative to the drying device, but at least in the period between the start of the coating order on the workpiece and the completion of Drying of the workpiece to move relative to the drying device.
- the relative movement between the workpiece and the drying device can be generated by a movement of the workpiece in a stationary drying device, by a movement of the drying device at a fixed workpiece or by a simultaneous movement of the workpiece and the drying device.
- the workpiece is moved both during coating and during drying.
- the continuous operation makes it possible to form both the coating zone and the drying zone significantly shorter than the workpiece to be coated.
- these additional processes may also be carried out in separate zones, for example a pretreatment zone and an evaporation zone. whose length can be shorter than the length of the workpiece to be coated.
- the coating system used for carrying out the method does not have to be dimensioned as a function of the workpiece size, but can be designed as a function of the desired throughput.
- the workpiece preferably continuously, is moved after the coating of the workpiece has been completed and while the workpiece is being dried.
- the drying device preferably continuously, is moved while the workpiece is being dried.
- the coating operation can be performed on a stationary workpiece.
- processing operations such as a pretreatment process and a Abdunstvorgang, can be performed in this case with stationary workpiece.
- the workpiece may also remain stationary during the drying process. Since, in this case, the workpiece is not conveyed in continuous operation during the processing in the process booth, a conveyor apparatus constructed more simply for conveying the workpiece can be used, since smaller demands are then placed on the smoothness of the workpiece conveyance. In a further embodiment of the method, provision may be made for the workpiece to be moved relative to the drying device after the coating of the workpiece has been completed and before the drying of the workpiece begins.
- both the coating of the workpiece and the drying of the workpiece can be carried out with a stationary workpiece. It is sufficient to move the workpiece between the coating process and the drying process of a coating zone in a drying zone. Since there is no machining operation on the moving workpiece in this case, the conveying device for conveying the workpiece can be made simpler than in a continuous operation, since lower demands are to be placed on the smooth running of the tool movement.
- the workpiece during coating and / or during drying is conveyed substantially continuously through a process booth of the coating installation.
- the conveying speed of the workpiece is preferably between 0.2 m / min and 1 m / min.
- the workpiece can in particular be moved relative to the drying device by means of a track-guided workpiece transport carriage.
- the conveying device of the coating installation used for carrying out the method according to the invention preferably comprises a longitudinal conveyor track along which the workpiece transport carriage is movable in a longitudinal conveying direction, and a transverse conveyor track along which the workpiece transport carriage can be moved in a transverse conveying direction running transversely to the longitudinal conveying direction.
- the conveyor device preferably comprises a return conveyor track, via which the workpiece transport carriage can be moved back from one end of the longitudinal conveyor track to the beginning of the longitudinal conveyor track.
- the return conveyor track preferably runs outside the process booth of the coating installation.
- the return conveyor track can run substantially parallel to the longitudinal conveyor track.
- the workpiece is moved by means of a self-propelled workpiece transport carriage.
- the conveying device of the coating system is provided with a device for non-contact transmission of energy to the workpiece transport carriage.
- the workpiece transport carriage has a memory for electrical energy, in particular an accumulator.
- the workpiece transport carriage In order to move the workpiece transport carriage both in a longitudinal conveying direction and in a transverse thereto transverse conveying direction, it is advantageous if the workpiece transport carriage by means of a first set of wheels in a first direction and by means of a second set of wheels in a second direction, which transversely to the first direction, is moved.
- the workpiece transport carriage can have longitudinal running wheels for longitudinal transport in a longitudinal conveying direction and transverse wheels for transverse transport in a transverse conveying direction running transversely to the longitudinal conveying direction.
- the longitudinal wheels and / or the transverse wheels are arranged vertically adjustable on the workpiece transport carriage, so that can be changed by lowering or lifting these wheels of the workpiece transport car from longitudinal transport to transverse or from transverse transport to longitudinal transport.
- the workpiece transport carriage is guided on at least one rail, which has a, preferably convex, curved running surface.
- Such a rail can be designed in particular as a round rail.
- the workpiece transport carriage preferably has at least one impeller, which has a complementary to the curved running surface of the rail, preferably concave, curved tread along its circumference.
- the rail in the coating zone of the coating system is preferably separated by a shielding element, for example an enclosure, from an application region of the coating zone in which the coating material is applied to the workpiece.
- a shielding element for example an enclosure
- the workpiece is pretreated prior to coating by means of a vacuum suction jet device, preferably mounted on a robot-guided or automatic traversing unit.
- the workpiece is pretreated prior to coating by means of a robot-guided brush system with suction.
- the coating of the workpiece can in principle be done with any coating material.
- a coating in particular a solvent-free paint, for example a water-based paint, is preferably used for the coating.
- the coating of the workpiece preferably takes place in a coating zone in which an air stream absorbs excess coating material, the excess coating material subsequently being separated from the air stream by means of a separating device.
- This separation device is preferably formed as auriabscheidungs- device.
- Such a dry separation device may in particular comprise filter elements which can be assigned with a precoat material.
- a precoat material for example stone dust, sticky particles can be deposited from the coating material.
- the dry-deposition apparatus may comprise labyrinth filters for depositing the coating material.
- the drying of the workpiece can be done for example by supplying warm air to the workpiece.
- the drying device by means of which the workpiece is dried, can be designed, for example, as a convection dryer.
- the coating produced on the workpiece is at least partially dried and / or cured by means of an irradiation unit.
- the irradiation unit can emit, for example, infrared radiation and / or UV radiation (in the case of a coating curable by UV irradiation).
- a cooling device may be provided for cooling the at least one irradiation device.
- the at least one irradiation unit may be arranged stationarily in a drying zone.
- At least one irradiation unit preferably in a longitudinal direction of a process booth of the coating installation, is movable, so that with this irradiation unit a larger area of the surface of the workpiece can be swept over without having to move the workpiece relative to the irradiation unit.
- the irradiation unit comprises at least one irradiation device which is movable relative to the coated surface of the workpiece, so that their distance from the coated surface of the workpiece variably adjustable is.
- the position of the irradiation device can be adapted to the varying cross-sectional geometry of the workpiece and a uniform irradiance can be achieved on all surfaces of the workpiece.
- the process chamber of the coating system supplied air is preferably performed in a recirculation loop, whereby a considerable energy saving is achieved because it is then not necessary to constantly warm fresh air to the temperature required in the process booth.
- the coating installation comprises a plurality of recirculating air circuits, so that the cabin air can be differently conditioned in the different circulating air circuits as required.
- a first circulating air circulation which feed air feeds a pretreatment zone
- a second circulating air circuit which supply air feeds a coating zone
- the process booth comprises a plurality of separate zones to which the supply air is supplied in each case via its own supply air line, because in this way the supply air quantity supplied to each zone can be adapted to the respective needs exactly.
- a sectional air flow By such a sectional air flow, a further energy saving is achieved.
- the drying of the workpiece preferably takes place in a drying zone whose longitudinal extent in the direction in which the workpiece is moved relative to the drying device is smaller than the longitudinal extent of the workpiece in this direction.
- all machining operations to be carried out on the workpiece in the coating installation take place fully automatically during normal operation of the installation.
- the process booth of the coating installation has at least one reserve zone or back-up zone in which manual processing of the workpiece can be carried out.
- the workpiece can also be properly coated, if a preceding in the conveying direction of the workpiece automatically operated processing zone fails or produces a poor work result, so that a manual rework is required.
- such a reserve zone or backup zone is arranged between a pretreatment zone and a coating zone of the coating installation.
- a reserve zone or back-up zone is arranged between a coating zone and a drying zone of the coating installation.
- the coating method according to the invention is particularly suitable for coating very long workpieces, in particular elongated workpieces, in which the longitudinal extent is significantly greater than the maximum extent in a transverse direction perpendicular to the longitudinal direction of the workpiece.
- the longitudinal extension of the workpiece is at least five times as large as the maximum transverse extent of the workpiece.
- the workpiece to be coated is preferably an individual part with a predetermined longitudinal extension, ie not a strip material of indefinite length.
- the present invention further relates to a coating system for providing a workpiece with a coating, which comprises at least one coating unit, by means of which the workpiece can be provided with a coating, and at least one drying device, by means of which the coating can be dried on the workpiece.
- the present invention has the further object of providing such a coating system which has an increased capacity and is particularly suitable for coating very long workpieces.
- the coating system comprises at least one movement device by means of which a relative movement between the workpiece and the drying device can be generated after the coating of the workpiece has been started and before the Drying of the workpiece is finished.
- Such a coating system is particularly suitable for carrying out the method according to the invention.
- the movement device can be designed to move the workpiece and / or to move the drying device.
- the movement device may comprise a workpiece transport carriage and / or a movable irradiation unit for drying the workpiece.
- FIG. 1 shows a schematic plan view of a coating installation with a process booth extending in a longitudinal direction and a conveyor device comprising a longitudinal conveyor track running through the process booth, a return conveyor track running outside the process booth and parallel to the longitudinal conveyor track, and transverse conveyor tracks connecting the return conveyor track and the longitudinal conveyor track;
- FIG. 2 is a schematic plan view of the process booth of the coating installation from FIG. 1, which comprises a pretreatment zone, a first back-up zone, a lock zone, a coating zone, a further back-up zone, an evaporation zone and a drying zone; which follow one another in the longitudinal direction of the process booth;
- Fig. 3 is an air guide scheme which the supply air to and
- Exhaust air duct of the process booth of FIG. 2 represents; 4 shows a further schematic plan view of the process cab with a workpiece transport carriage which carries a very long workpiece (for example in the form of a rotor blade for a wind power plant) and conveys in a longitudinal conveying direction through the process booth, while in the longitudinal direction of the workpiece successive parts of the workpiece in FIG different zones of the process cubicle are processed simultaneously;
- a workpiece transport carriage which carries a very long workpiece (for example in the form of a rotor blade for a wind power plant) and conveys in a longitudinal conveying direction through the process booth, while in the longitudinal direction of the workpiece successive parts of the workpiece in FIG different zones of the process cubicle are processed simultaneously;
- FIG. 5 shows a schematic side view of the workpiece transport carriage with the workpiece held thereon
- FIG. 6 is a fragmentary schematic vertical cross section through the workpiece transport carriage and a longitudinal conveyor rail onto which a longitudinal conveyor wheel of the workpiece transport carriage rolls;
- FIG. 7 shows a schematic view of the workpiece transport carriage, of the workpiece held thereon and of irradiation devices which can be delivered against the workpiece, viewed in the longitudinal conveying direction of the coating installation;
- Fig. 8 is a schematic section through a vacuum suction jet device used to pretreat the workpiece in the pretreatment zone;
- FIG. 9 is a schematic plan view of a process booth of a second
- Embodiment of a coating system in which the pretreatment and the coating of the workpiece and the evaporation in a common workbench are performed on a stationary workpiece and then a drying device is moved along the workpiece while the workpiece remains stationary;
- FIG. 11 is a schematic plan view of the process booth of a fourth
- Embodiment of a coating system in which the pretreatment and coating of the workpiece and the evaporation in a common work zone are performed at stationary workpiece and then conveyed the workpiece in a drying zone and dried in the drying zone in the stationary state.
- 1 to 8 designated 100 as a whole, comprises a process booth 102 and a conveyor 104, with which a workpiece 106 to be coated (see FIGS. 4 and 5) can be conveyed through the process booth 102 in a longitudinal conveying direction 108 (see Fig. 1).
- workpieces to be coated according to the invention are often integrally executed units such as rotor blades of wind turbines, ship hulls, car bodies or aircraft wings or -Leitwerke provided.
- the conveying device 104 comprises a longitudinal conveying track 110 running in the longitudinal conveying direction 108 with two longitudinal conveying rails 112 running parallel to the longitudinal conveying direction 108 and perpendicular to the longitudinal conveying direction 108.
- the conveyor apparatus 104 further comprises a return conveyor track 114 which extends along a return direction directed in an opposite direction to the longitudinal conveyor direction 108 116 runs.
- the return conveyor track 114 comprises two return conveyor rails 118 running parallel to the return direction 116 and perpendicular to the return direction 116.
- first transverse conveyor track 120 which extends along a first transverse conveyor direction 122 directed perpendicular to the longitudinal conveyor direction 108 and perpendicular to the return conveyor direction 116, connected to the beginning of the return conveyor track 114.
- the first transverse conveyor track 120 comprises two transverse conveyor rails 124 which extend parallel to the first transverse conveyor direction 122 and are perpendicular to the first transverse conveyor direction 122 and which form a first rail intersection 126 with the longitudinal conveyor rails 112 of the longitudinal conveyor track 110 and a second rail intersection 128 with the return conveyor rails 118 of the return conveyor track 114.
- the conveyor device comprises 104 further comprises a second transverse conveyor track 130 which extends in a direction perpendicular to the return direction 116 and perpendicular to the longitudinal conveying direction 108 second transverse conveying direction 132 and connects the end of the return conveyor track 114 with the beginning of the longitudinal conveyor track 110.
- the second transverse conveyor track 130 comprises two transverse conveyor rails 134, which run parallel to the second transverse conveyor direction 132 and form a third rail intersection 136 with the return conveyor rails 118 of the return conveyor track 114 and a fourth rail intersection 138 with the longitudinal conveyor rails 112 of the longitudinal conveyor track 110.
- the process booth 102 of the coating installation 100 is shown in more detail in FIGS. 2 and 3.
- the process booth 102 includes a fully automatic pretreatment zone 140, a first reserve zone or back-up zone 142 for performing a manual pretreatment, a lock zone 144, a fully automatic coating zone 146, a second reserve zone or back-up zone 148 for performing a manual coating, an evaporation zone 150 and a drying zone 152.
- the pretreatment zone 140 is designed as a closed cabin which is composed of self-supporting frame elements made of sheet steel profiles with glass infillings and sheet infillings integrated into the frame elements.
- the side walls 154 of the pretreatment zone 140 formed from these frame members include, in order from top to bottom upper sheet metal field, an upper glass panel for arranging lights (with a height of, for example, about 1 m), a middle sheet metal panel, a lower glass panel (with a height of, for example, about 1.6 m) and a lower sheet metal panel.
- the glass infills of the side walls 154 are preferably single-pane safety glass.
- the glass infills and the sheet metal infills are screwed or clamped in seals so that when cleaning the cabin cleaning media can not escape to the outside and falling out of the infills in case of fire is prevented.
- the lights provided for the upper glass panels of the side walls 154 comprise asymmetric reflectors and sheet-metal housings which are pressed against the glass panels from the outside.
- the luminaire housings may be provided with adjustable fastening and tensioning devices, safety chains or an erection device as well as a seal against the glass pane.
- the lighting of the cabin can be switched on at a lighting cabinet.
- a respective parallel to the longitudinal conveying direction 108 extending travel rail 156 for a parallel to the longitudinal conveying direction 108 movable automatic pretreatment unit 158 is arranged.
- the automatic pretreatment unit 158 may be designed in particular as a pretreatment robot.
- the side walls 154 are thus prepared for integration of the pretreatment units 158.
- doors are provided so that the interior of the cabin can be entered by maintenance or cleaning personnel.
- the doors can be designed, for example, as steel doors with viewing window.
- pressure plates are preferably mounted on the inside of the cabin and handles on the outside.
- the doors preferably open to the outside.
- an end wall 160 in panel construction which is prepared for the connection of other parts of the plant, in particular other cabins.
- the end wall 160 may be formed of galvanized sheet, for example.
- the end wall 160 is preferably smooth-surfaced and double-walled and prepared for concealed cable management.
- the end wall 160 is provided with a passage opening, which preferably has a rigid silhouette.
- the distance of the silhouette to the workpiece surface is preferably at least 0.5 m in the passage of the workpiece 106.
- pendulum panels are provided at the passage opening, which are deflected from its rest position when a improperly oriented workpiece 106 comes in contact with such a pendulum shutter.
- the deflection of such a pendulum diaphragm is registered by an initiator assigned to the pendulum diaphragm, which then sends a signal to the control device of the coating system 100, which leads to an emergency shutdown of the coating system 100.
- the initiators of the pendulum diaphragms are preferably integrated in the respective end wall 160.
- the floor of the cabin is designed as a self-supporting steel structure with grate support.
- the access doors of the cabin are at the level of the grate support or are accessible from the grate level on pedestals, preferably smooth metal platforms, with steps.
- a filter cover 162 (see FIG. 3).
- the filter cover can be formed of galvanized and / or painted sheet metal elements with an integrated painted wire mesh.
- the frame of the filter cover 162 is preferably made walkable.
- the contamination of the filters of the filter cover 162 can be monitored by a differential pressure gauge.
- the differential pressure gauge preferably has an on-site display in the cabin.
- the differential pressure across the filter blanket 162 is determined in a zone of the cabin representative of the filter contamination.
- a filter plenum 164 Above the filter cover 162 is a filter plenum 164, wherein the filter plenums of successive cabins in the longitudinal conveying direction 108 are likewise separated from one another by partitions 166, so that a sectional air supply to the zones of the process booth 102 is possible according to work zones.
- the Filterplenum 164 is provided with a lighting, which is preferably switched on from a central location of the Filterplenums 164 via a switch with control lamp.
- the filter plenum 164 can be accessed by maintenance or cleaning personnel via an air-tight maintenance door.
- the cabin of the pre-treatment zone 140 is ventilated in recirculation mode; The ventilation of the cabin in detail will be explained below with reference to FIG.
- each of the movable automatic pretreatment units 158 is provided with a vacuum suction jet device 168 shown schematically in FIG.
- the vacuum suction jet device 168 comprises a jet hood 170, which is open towards the workpiece 106 and can be placed on the surface 172 of the workpiece 106 substantially airtight by means of a seal which is arranged on the edge of the jet hood 170 facing the workpiece 106.
- the jet hood 170 opens a jet lance 176, by means of which the interior 174 delimiting surface 172 of the workpiece 106 can be acted upon with a jet medium 178.
- the impact of the blasting medium 178 on the surface 172 of the workpiece 106 activates the surface 172 to be coated.
- the blasting medium is sucked out of the interior 174 of the blasting hood 170 via a suction line 180.
- the suction line 180 is connected to a vacuum source, so that in the interior 174 of the jet hood 170, a negative pressure is generated, through which the jet hood 170 is pressed against the surface 172 of the workpiece 106.
- the jet hoods 170 are moved over the entire surface 172 of the workpiece 106 to be coated by means of the respectively assigned pretreatment units 158 designed as movable robots.
- a robot-guided brush system with a suction device can also be used to activate the surface 172 of the workpiece 106 to be coated.
- the first back-up zone 142 which follows the pretreatment zone 140 in the longitudinal conveying direction 108, like the pretreatment zone 140, is designed as a closed cabin whose construction corresponds to the cabin of the pretreatment zone 140, to the above description of which reference is made.
- the first back-up zone 142 is not provided with automatic pretreatment units 158. Rather, in the event of failure or insufficient performance of the automatic pretreatment units 158 in the pretreatment zone 140, the first back-up zone 142 serves to manually pretreat the workpiece 106 by workers 181 (see FIG. 4) with suitable pretreatment equipment.
- the first back-up zone 142 is adjoined in the longitudinal conveying direction 108 by the lock zone 144, in which an air curtain passing through the lock zone 144 in the vertical direction can be generated, in order to supply the pretreatment zone 140 and the first back-up zone 142 with ventilation technology separating coating zone 146 following the lock zone 144, and thus preventing contaminants from the pretreatment zone 140 or the first back-up zone 142 from entering the coating zone 146 or coating material from the coating zone 146 into the pretreatment zone 140 or the first baking zone 142. can reach up zone 142.
- the coating zone 146 following the lock zone 144 in the longitudinal conveying direction 108 is constructed as a closed cabin whose structure from the grid floor level is identical to the structure of the booth of the pretreatment zone 140, to which the above description refers in this respect.
- coating units 182 are used in the coating zone 146, which coating units can be moved parallel to the longitudinal conveying direction 108 on the travel rails 156 integrated into the sidewalls 154 of the cabin.
- the coating units 182 can, for example, be designed as coating roasters, in particular as 7-axis robots.
- the coating units 182 are provided with suitable application devices for applying coating material to the surface 172 of the workpiece 106.
- a lacquer preferably a solvent-free lacquer, in particular a water lacquer, can be used.
- coating units 182 which are arranged on the two longitudinal sides of the coating zone 146, further coating units may optionally be arranged on the front side above the inlet of the coating zone 146 and / or above the outlet of the coating zone 146.
- the coating units 182 enable a continuous application of the coating material, in particular of the paint, to the workpiece 106.
- a separator 184 (see Fig. 3) for separating excess coating material from an air stream passing through the coating zone 146 from top to bottom.
- the separation device 184 is preferably designed as a dry separation device and comprises filter elements coated with precoat material, on the precoat layer of which sticky particles are deposited from the coating material.
- rock flour can be used as precoat material.
- a supply of the precoat material is contained in a (for example funnel-shaped) storage container below the filter elements and is fluidized at intervals by means of air nozzles in order to cover the filter elements with fresh precoat material.
- a (for example funnel-shaped) storage container below the filter elements and is fluidized at intervals by means of air nozzles in order to cover the filter elements with fresh precoat material.
- Such a dry separation device is known, for example, from DE 10 2007 040 901 A1, to which reference is made with regard to the construction and operation of such a dry separation device, and which is hereby made part of this application.
- Such a dry deposition device which is arranged below the lattice grate level of the coating zone 146, can in particular comprise an enclosure of the filter elements on both sides of the vertical cabin longitudinal plane, which is aligned parallel to the longitudinal conveying direction 108, as well as filter modules containing the filter elements, a walkable arranged between the filter housings Web, a feed unit for the supply of fresh precoat material to the reservoirs below the filter elements and a discharge unit for the removal of the mixture of precoat material and coating material from the storage containers.
- dry-precipitation device which comprises cardboard-labyrinth filters on which the coating material is deposited from the coating material-laden air stream.
- the second back-up zone 148 following the coating zone 146 in the longitudinal conveying direction 108 is designed as a closed cabin, the structure of which from the grid floor level is identical to the structure of the booth of the coating zone 146, to the above description thereof is referenced.
- the second back-up zone 148 has no automatic coating units 182. Rather, in the event of a failure or poor performance of the coating units 182 in the automatic coating zone 146, the second back-up zone 148 serves to manually coat the workpiece 106 by workers 185 (see FIG. 4) with a suitable coating apparatus.
- a separation device 186 is provided below the second back-up zone 148, as well as the coating zone 146 for separating excess coating material from an air flow passing through the second back-up zone 148 from top to bottom.
- this separation device 186 may be designed for a lower separation efficiency.
- the deposition device 186 it will be sufficient to form the deposition device 186 as a dry-separation device with a cardboard labyrinth system.
- Such a cardboard labyrinth system comprises, for example, suction channels arranged below the grate level, which are provided with vertically arranged, foldable receiving frames for coating agent separators.
- the deposition of the coating material is carried out by glass fiber fleece filter and downstream cardboard labyrinth filter.
- the evaporation zone 150 following the second back-up zone 148 in the longitudinal conveying direction 108 is designed as a closed cabin and preferably comprises a housing made of galvanized sheet steel, which is provided with interior lighting and a tight-closing door.
- a supply air channel is provided with filter frame interchangeable from below.
- the drying zone 152 following the evaporation zone 150 in the longitudinal conveying direction 108 is designed as a closed cabin, which is preferably mounted in self-supporting construction from prefabricated housing segments.
- the entire inner contour of the drying zone 152 is preferably designed to be cleanable and easy to maintain.
- all sheet edges and welds in the work space of the drying zone 152 are preferably deburred, and the dryer tunnel is preferably made smooth.
- irradiation units 188 are arranged on both sides of the conveying path of the workpiece 106, of which one in Fig. 7 is shown in detail.
- the irradiation unit 188 comprises a frame or stand 190, on which a plurality, for example three, irradiation devices 192 are held. By means of the irradiation devices 192, the coated surface 172 of the workpiece 106 can be exposed to radiation which dries and / or hardens the coating.
- This radiation may be, for example, infrared radiation and / or UV radiation (in the case of a UV-curable coating).
- the drying zone 152 with the irradiation units 188 contained therein thus forms a drying device 189, relative to which the workpiece 106 is moved, while the workpiece 106 is coated and while the workpiece 106 is dried.
- the irradiation devices 192 are adjustable, preferably independently of each other, in vertical position and in position in the transverse direction 194 of the drying zone 152 (preferably motor, hydraulic or pneumatic) to automatically maintain a desired distance of the respective irradiation device 192 from the respective irradiated part of the surface 172 of the workpiece 106 to adjust.
- the irradiation devices 192 are moved toward or away from the workpiece 106 as the workpiece 106 advances past the workpiece 106.
- the average irradiation power at the coated surface 172 of the workpiece 106 remains substantially constant despite the varying cross section of the workpiece 106, since the position of the irradiation devices 192 automatically adapts to the geometry of the workpiece 106. Furthermore, in order to achieve a desired irradiation power at the workpiece surface, it is possible to switch off or switch on individual irradiation devices 192 and / or to change the performance of the irradiation devices 192.
- the temperature of the workpiece surface is detected and the irradiation power respectively emitted by the irradiation devices 192 and the distance of the irradiation devices 192 from the surface 172 of the workpiece 106 are controlled depending on the result of the temperature detection.
- the temperature detection can be done in particular by means of a pyrometer.
- a pyrometer senses the thermal radiation emitted by an object contactlessly and evaluates it in order to determine the temperature of the object, taking advantage of the fact that the intensity of the heat radiation emitted by an object depends on its temperature.
- the irradiation devices 192 can be cooled by means of cooling air, which is blown via flexible tubes to the surfaces of the irradiation devices 192 to be cooled.
- the coating installation 100 comprises a first recirculation system 198, which supplies the preparation zone 140, the first back-up zone 142 and the lock zone 144 with supply air via supply air lines 200, and a second recirculation system 202, which supplies the coating zone 146, the second back-up system.
- Zone 148 and the evaporation zone 150 via supply air lines 204 supplied with supply air.
- the drying zone 152 receives supply air indirectly from the evaporation zone 150; Exhaust air from the drying zone 152 is removed via an exhaust air line 206 from the drying zone 152 and discharged into the environment.
- the cabin air supplied to the pretreatment zone 140 and the first back-up zone 142 through the respective filter plenum 164 and the respective filter cover 162 is sucked out of the booths, for example via overflow openings arranged in the bottom area of the respective side walls 154, and through exhaust air ducts 208, which enter into one Abluftsammelkanal 210 open, fed back to the first recirculation system 198.
- the overflow openings through which the air is sucked out of the cabins, can be equipped with foldable mounting frames.
- Fiber filters for example made of glass fiber fleece, can be clamped into the mounting frames.
- a fan 212 is arranged, which sucks the exhaust air from the preparation zone 140 and the first back-up zone 142 and the first recirculation system 198 feeds, whereby the recirculation loop through the first recirculation system 198 and the pretreatment zone 140 and the first backup Zone 142 is closed.
- the circulating air is adapted to the desired air conditions by conditioning devices (for example a heating device, a cooling device, a humidifying device and / or a dehumidifier) and, if necessary, supplemented with fresh air, which is supplied to the first recirculation system 198 via a fresh air supply line 214 ,
- conditioning devices for example a heating device, a cooling device, a humidifying device and / or a dehumidifier
- the recirculation mode limits the energy required for conditioning the cabin air (for heating, cooling, humidifying and / or dehumidifying) to a minimum.
- the ventilation of the coating zone 146, the second back-up zone 148 and the evaporation zone 150 also takes place in recirculation mode.
- the exhaust air of the coating zone 146 freed from excess coating material in the separation device 184 is sucked through an exhaust air duct 216 with blower 218 into an exhaust collection duct 220 and from there is supplied to the second recirculation system 202.
- the exhaust air from the second back-up zone 148, which is optionally freed of excess coating material in the separation device 186, and the exhaust air of the evaporation zone 150 canceled from the bottom region of the evaporation zone 150 is sucked through an exhaust duct 222 with blower 224 into the exhaust collection duct 220 and from there also the second recirculation system 202 supplied.
- the circulating air is adapted to the desired air conditions by conditioning devices (for example a heating device, a cooling device, a humidifying device and / or a dehumidifying device) and optionally supplied with fresh air which is supplied to the second recirculating air system 202 via a fresh air supply line 226 becomes.
- conditioning devices for example a heating device, a cooling device, a humidifying device and / or a dehumidifying device
- the circulating air operation of the coating zone 146, the second back-up zone 148 and the evaporation zone 150 further reduces the energy required for air conditioning (in particular for heating, cooling, humidifying and / or dehumidifying).
- the cabin air can be conditioned differently depending on requirements, in particular differently conditioned for the pretreatment zone 140 on the one hand and for the coating zone 146 on the other hand.
- each cabin is supplied via its own supply air line 200 or 204, the supply air quantity supplied to each one cabin can be adapted exactly to the respective requirement.
- This sectional air duct selective ventilation of the individual zones of the process booth 102 achieves a further energy saving.
- the lock zone 144 represents a link between the two circulating air circuits of the coating system 100, since it receives its supply air from the first recirculation system 198, but the exhaust air from the lock zone 144, which may be loaded with excess coating material from the coating zone 146, not the first recirculation system 198, but via the separation device 184 of the second recirculation system 202 is supplied. Nevertheless, the lock zone 144 is always supplied in a circulating air guided supply air, which has an energy saving result.
- Excess air is discharged from the circulating air circuit of the first circulating air system 198 via an exhaust air line 228 into the environment, which is connected to the supply air lines 200 of the first circulating air circuit.
- the transport of the workpiece 106 to be coated through the process booth 102 takes place by means of a workpiece transport carriage 232, which is shown in FIGS. 4 to 7.
- the workpiece transport carriage 232 comprises a substantially rectangular frame 233 of two box-shaped longitudinal members 234, which are interconnected by transverse members 236 running perpendicular to the longitudinal direction 238 of the workpiece transporting carriage 232.
- the two side members 134 carry at their front ends together a workpiece holder 240th
- the workpiece 106 to be coated for example, a rotor blade for a wind power plant, is fixed at one end to the workpiece holder 240, for example by screwing or clamping.
- the workpiece 106 is arranged on the workpiece transport carriage 232 such that the longitudinal direction 196 of the workpiece 106 substantially coincides with the longitudinal direction 238 of the workpiece transport carriage 232.
- the longitudinal extent L of the workpiece 106 along the common longitudinal direction is significantly greater than the longitudinal extent I of the workpiece transport carriage 232.
- the workpiece 106 therefore projects over a considerable length beyond the rear end of the workpiece carriage 232.
- the projection of the workpiece 106 over the workpiece transport carriage 232 is at least half, preferably at least two-thirds, of the longitudinal extent L of the workpiece 106 along its longitudinal direction 196.
- the workpiece transport carriage 232 for locomotion in the longitudinal conveying direction 108 on each side member 234, two longitudinal wheels 242 which are rotatable about parallel to the transverse direction 244 of the workpiece carriage 232 extending axes.
- the longitudinal conveyor rails 112 on which the longitudinal wheels 242 roll are formed as round rails with a convexly curved running surface 246 (see FIG. 6).
- the longitudinal wheels 242 are preferably made of a hardened steel, an aluminum alloy or a thermosetting plastic and have a complementary to the convexly curved tread 246 of the longitudinal conveyor rails 112 formed, concave curved tread 248 along its circumference.
- the longitudinal wheels are equipped with solid rubber tires or with gas-filled wheel tires.
- the diameter of the longitudinal conveyor rails 112 may be, for example, approximately 60 mm and the diameter of the longitudinal wheels 242 approximately 250 mm.
- the return conveyor rails 118 of the return conveyor track 114 are designed in the same way as the longitudinal conveyor rails 112 of the longitudinal conveyor track 110.
- the longitudinal conveyor track 110 is arranged in each case a transverse wheel 250 on each end face of each longitudinal member 234 of the workpiece transport carriage 232 (see Fig. 5).
- the transverse wheels 250 are height-adjustable held on the frame of the workpiece transport carriage 232 and can be adjusted in their altitude relative to the frame 233 and thus relative to the longitudinal wheels 242 (for example, motor or hydraulic).
- the cross wheels in detail similar to the longitudinal wheels (or identical) ausgestalten.
- the transverse wheels 250 are in their upper position, in which the transverse wheels 250 are lifted off the ground, so that the workpiece transport carriage 232 reaches the longitudinal conveying rails 112 via the longitudinal running wheels 242 or the return conveyor rails 118 is supported.
- the end transverse wheels 250 are lowered until the workpiece transport carriage 232 is supported by the transverse wheels 250 on the transverse conveyor rails 124 and 134 and the longitudinal wheels 242 of the longitudinal conveyor rails 112 and .
- the return lines 118 are lifted.
- the workpiece transport carriage 232 is free for transverse transport in the first transverse conveying direction 122 or in the second transverse conveying direction 132.
- the transverse conveyor rails 124 and 134 as well as the longitudinal conveyor rails 112 could be provided with a convexly curved tread and the transverse wheels 250 with a concavely curved tread.
- the transverse conveyor rails 124 and 132 can be formed as flat rails with a substantially flat running surface and the transverse wheels 250 with a cylindrical running surface.
- cylindrical wheel tread wheels 250 has the advantage that they can be made narrower than wheels with a concave, curved tread, and therefore require only a smaller installation space, so that the required wheel load can be achieved.
- the diameter of the transverse wheels 250 may be, for example, about 400 mm.
- the workpiece transport carriage 232 is preferably self-propelled.
- At least two longitudinal wheels 242 and at least two transverse wheels 250 per motor vehicle are driven.
- all longitudinal wheels 242 and all transverse wheels 250 are particularly preferably driven.
- the drive devices required for this purpose are preferably accommodated in the interior of the box-shaped longitudinal members 234 of the workpiece transport carriage 232 so that the free cross section of the workpiece transporting carriage 232 available for the flow through the cabin air in the vertical direction remains as large as possible.
- the transmission of the drive movement of the drive device to the respective driven impeller can for example via a drive belt 252 (see FIG. 6), in particular a toothed belt, take place.
- the drive devices for the wheels preferably comprise at least one electric motor.
- each driven wheel is gearless associated with its own electric motor.
- the electrical energy required for the supply of the electric motor is preferably transmitted without contact from a conductor system 254 laid between the conveyor rails of a conveyor track by electrical induction in a pickup coil 256 onto the workpiece transport carriage 232 (see FIG. 6).
- the surroundings of the pick-up coil 256 and the conductor system 254 must be free from iron.
- the grate level for example, increased by at least about 20 cm, above the floor height in the region of the conductor system 254.
- the pick-up coil 256 is guided below the grate level.
- the pick-up coil 256 is height-adjustable (for example, motor or hydraulic) held on the frame 233 of the workpiece carriage 232, so that the pick-up coil 256 can be lowered at the transition from the longitudinal transport to the transverse transport relative to the frame 233 by the same distance from the ladder system 254 as during the longitudinal transport.
- the conductors 258 of the conductor system 254 are guided inside the process booth 102 in plastic pipes and can be supported for example on plastic blocks on cross members of the process booth 102.
- a solvent-free coating material in particular a solvent-free paint, is preferably used.
- a high-frequency field with a frequency of, for example, 25 kHz is preferably used.
- a non-contact energy transfer to the workpiece transport carriage 232 may also be provided that the workpiece transport carriage 232 is provided with a memory for electrical energy, in particular with an accumulator.
- the drive elements required for this drive variant are available in explosion-proof design.
- a plurality of workpiece transport carriages 232 are used in the coating installation 200, for example at least three, sufficient time is available to recharge the accumulator during the return of a workpiece transport carriage 232 along the return conveyor track 114.
- the longitudinal conveyor rails 112 and the side members 234 of the workpiece carriage 232 with the longitudinal wheels 242 at least in the coating zone 146 and the second back-up zone 148 by a housing 260 can be formed as a sheet metal lining, separated from the application area in which the coating material is applied to the workpiece 106, so that the longitudinal conveyor rails 112 and the longitudinal wheels 242 from contamination with coating material overspray and before contact with the cabin Exhaust air stream, which is loaded with excess coating material, are protected. As can be seen from FIG.
- the housing 260 has only a narrow passage gap 262 through which the cross members 236 of the workpiece transport carriage 232 extend out of the application area outside the housing 260 into the protected interior of the housing 260. Between the workpiece transport carriage 232 and the edges of the passage gap 262 remains only a small gap, so that essentially no coating material can pass through this narrow space in the interior of the housing 260 inside.
- the longitudinal conveyor rails 112, the longitudinal wheels 242 and the longitudinal members 234 of the workpiece transport carriage 232 are completely accommodated in the protective housing 260.
- the coating unit 100 described above is suitable in particular for coating very long workpieces, in particular elongate workpieces, in which the longitudinal extent L is significantly greater than the maximum extent B in a transverse direction perpendicular to the longitudinal direction 196 (see FIG. 5).
- the longitudinal extent L of the workpiece 106 is at least five times as large as the maximum transverse extent B.
- the coating installation 100 is suitable for coating workpieces which have a length of at least 10 m, preferably of at least 30 m, for example of approximately 50 m.
- a suitable workpiece 106 may be formed as the rotor blade of a wind power plant.
- the workpiece 106 to be coated is fixed to the workpiece holder 240 of the workpiece transport carriage 232 in such a way that the longitudinal direction 196 of the workpiece 106, ie the direction of the greatest longitudinal extent of the workpiece 106, substantially coincides with the longitudinal direction 238 of the workpiece transport carriage 232 and with the longitudinal conveying direction 108 of the coating system 100 matches. Then, the workpiece transport carriage 232 with the workpiece 106 held thereon, which is supported with the longitudinal wheels 242 on the longitudinal conveyor rails 112 of the longitudinal conveyor track 110, is set in motion from the region of the first rail intersection 126, so that it enters the pretreatment zone 140 of the process booth 102 enters and successively passes through all other zones of the process booth 102.
- the conveying speed of the workpiece transporting carriage 232 is preferably 1 m / min or less as long as the workpiece 106 is being treated within the process booth 102.
- the conveying speed is preferably about 0.8 m / min.
- the conveying speed in particular along the return conveyor track 114, can be increased to a conveying speed of more than 1 m / min, for example to about 12 m / min.
- the workpiece transport carriage 232 can be moved through the process booth 102 at a variable speed, in particular also temporarily stopped and restarted. Preferably, however, the workpiece carriage 232 moves continuously through the process booth 102, preferably at a substantially constant speed.
- each portion of the surface 172 of the workpiece 106 is sequentially treated in those zones in the appropriate manner.
- the part of the surface 172 of the workpiece 106 currently located in the pretreatment zone 140 is activated by means of the movable pretreatment units 158, while this part of the workpiece 106 moves through the pretreatment zone 140.
- the part of the surface 172 of the workpiece 106 located in the coating zone 146 is provided with the coating material by means of the movable coating units 182, while the relevant part of the workpiece 106 moves through the coating zone 146.
- the part of the surface 172 of the workpiece 106 which is respectively located in the drying zone 152 is dried and / or cured by means of the irradiation units 188, while the relevant part of the workpiece 106 moves through the drying zone 152.
- the longitudinal extent L of the workpiece 106 is significantly greater than the longitudinal extent of the pretreatment zone 140, the coating zone 146, the evaporation zone 150 and the drying zone 152.
- the longitudinal extent of the workpiece 106 is so great that different parts of the surface 172 of the workpiece 106 are treated differently at least at times simultaneously in different zones of the process booth 102.
- the front end of the workpiece 106 (for example, the rotor blade root of a wind turbine rotor) is already in the fume hood 150, while a middle portion of the workpiece 106 is simultaneously coated in the coating zone 146 and the rear end of the workpiece 106 (for example, the Rotor blade tip) is activated simultaneously in the pretreatment zone 140.
- the individual processing zones of the process booth 102 can be significantly shorter than the workpiece 106 to be processed.
- the pretreatment zone 140 may have a longitudinal extension in the longitudinal conveying direction 108 of approximately 6 m, the first back-up zone 142 a longitudinal extent of approximately 3 m, the sluice zone 144 a longitudinal extent of approximately 3 m, the coating zone 146 has a longitudinal extent of approximately 6 m, the second back-up zone 148 has a longitudinal extent of approximately 3 m, the evaporation zone 150 has a longitudinal extent of approximately 24 m and the drying zone 152 has a longitudinal extent of approximately 10 m.
- the coating system 100 does not have to be dimensioned as a function of the workpiece size, but can be designed as a function of the desired throughput.
- the transverse wheels 250 of the workpiece carriage 232 are driven to move the workpiece carriage 232 in the first transverse conveying direction 122 from the longitudinal conveyor track 110 to the return conveyor track 114.
- the workpiece transfer carriage 232 After reaching the third rail crossing 136, the workpiece transfer carriage 232 is converted to transverse transport by lowering the transverse wheels 250 from longitudinal transport, and the workpiece transfer carriage 232 is moved from the return conveyor track 114 to the longitudinal conveyor track 110 by driving the transverse wheels 250 along the second transverse conveyor track 130 in the second transverse conveying direction 132 ,
- the workpiece carriage 232 After reaching the fourth rail intersection 138 of the workpiece carriage 232 is converted by lifting the cross wheels 250 again from transverse to longitudinal transport, and the workpiece carriage 232 with the workpiece held thereon 106 is moved by driving the longitudinal wheels 242 once again through the process booth 102 to a second Perform coating process on the workpiece 106. After the second pass through the process booth 102, the workpiece 106 may be removed from the workpiece carriage 232, for example, when the workpiece carriage 232 has reached the first rail intersection 126.
- a second embodiment of a coating installation 100 illustrated in FIG. 9 differs from the first embodiment described above and illustrated in FIGS. 1 to 8 in that the process booth 102 in this second embodiment has only a single working zone 264 in front of the drying zone 152 Longitudinal extent in the longitudinal conveying direction 108 corresponds at least to the longitudinal extent L of the workpiece 106, so that the workpiece 106 can be completely retracted into the working zone 264.
- the working zone 264 is used for pretreatment and coating of the workpiece 106 and for performing the evaporation process after coating.
- the workpiece 106 arranged on the workpiece transport carriage 232 is moved into the working zone 264 in the longitudinal conveying direction 108 until the workpiece 106 is completely received in the working zone 264, and then stopped.
- the basic structure of the working zone 264 corresponds to the structure of the coating zone 146 of the process booth 102 of the first embodiment of the coating installation 100.
- the work zone 264 also includes pretreatment units 158 which can be moved on the same travel rails 156 or on other travel rails which are also parallel to the longitudinal conveyor direction 108.
- the pretreatment units 158 Upon the arrival of the workpiece 106 in the work zone 264, the pretreatment units 158 are moved over the entire length of the workpiece 106 to perform an activation pretreatment of the entire surface 172 of the workpiece 106.
- the coating units 182 follow the pretreatment units 158 at a short distance and thus successively perform a complete coating of the previously activated areas of the surface 172 of the workpiece 106.
- both the pretreatment units 158 and the coating units 182 have moved the entire length of the workpiece 106 (for example, from right to left in FIG. 9)
- the pre-treatment and coating of the workpiece 106 are completed and the workpiece transfer carriage 232 becomes in the longitudinal conveying direction 108 in order to move the completely coated workpiece 106, preferably continuously, through the drying zone 152, which is significantly shorter than the longitudinal extent L of the workpiece 106.
- the drying zone 152 thus forms a drying device 189, relative to which the workpiece 106 is moved after the coating of the workpiece 106 is completed and while the workpiece 106 is being dried. From the part of the workpiece 106, which has not yet reached the drying zone 152, volatile components of the coating material within the working zone 264 evaporate.
- the first coating process on the workpiece 106 is completed and the workpiece can be placed in the manner described above in connection with the first embodiment are moved back to the input of the process booth 102 to perform a second coating operation.
- This second embodiment of a coating system 100 has the advantage that the workpiece 106 is not moved during the coating, which allows a particularly uniform application of the coating.
- Characteristic of this embodiment is, in contrast to the first embodiment, that a long working zone 264 is used, which can accommodate the entire workpiece 106.
- very long travel rails 156 are used for the movable pretreatment units 158 and for the movable coating units 182, so that these units can cover the entire surface 172 of the workpiece 106.
- the pretreatment and the coating preferably take place simultaneously in the same booth, the supply air being conditioned identically for the pretreatment process and for the coating process.
- the use of a dry deposition apparatus with precoated filter elements is provided at a length of the working zone 264 of less than 10 m used for the coating process.
- the conveying speed with which the workpiece 106 is conveyed through the drying zone 152 is preferably at least 1 m / min, for example about 1.6 m / min.
- the second embodiment of a coating system 100 illustrated in FIG. 9 corresponds in terms of structure and function to the first embodiment shown in FIGS. 1 to 8, to the above description of which reference is made in this respect.
- a third embodiment of a coating installation 100 shown in FIG. 10 differs from the second embodiment shown in FIG. 9 in that in the process booth 102 in this third embodiment, a drying portal 266 movable parallel to the longitudinal conveying direction 112 is arranged in the working zone 264, on which the irradiation devices 192 are held to irradiate the coated surface 172 of the workpiece 106. On a subsequent to the working zone 264 drying zone 152 can thus be dispensed with in a preferred manner.
- the dryer portal 266 may be movable on the same traversing rails 156 as the pretreatment units 158 and the coating units 182, or separate traverse rails may be provided for the dryer port 266 which extend parallel to the longitudinal conveying direction 108.
- the work zone 264 is formed in this embodiment, significantly longer than the workpiece 106, since between the front end of the workpiece 106 and the rear end wall of the working zone 264 still enough space must be available to park the dryer portal 266.
- the workpiece 106 on the workpiece transport carriage 232 is moved completely into the working zone 264 in the longitudinal conveying direction 108 and stopped there.
- the workpiece 106 is pretreated completely by the parallel to the longitudinal conveying direction 108 traversing pretreatment units 158 and coated by the parallel to the longitudinal conveying direction 108 traversing coating units 182.
- the dryer portal 266 is moved parallel to the longitudinal conveying direction 108 over the entire length of the workpiece 106, wherein the irradiation devices 192 arranged on the dryer portal 266 irradiate the coated workpiece 106 and thereby dry and / or cure the coating.
- the dryer port 266 thus forms a dryer 189 which is moved relative to the workpiece 106 while the workpiece 106 is being dried.
- the workpiece 106 can be held immovably in the working zone 264 during the entire process, from the pretreatment to the completion of the drying, or can be moved at a particularly low speed of less than 0.1 m / min.
- a second coating operation with subsequent drying by moving the dryer 266 can be performed in the working zone 264, with still unmoved workpiece 106.
- the workpiece 106 Upon completion of the second coating operation, including the second drying, the workpiece 106 is mounted on the workpiece carriage 232 in FIG the return conveying direction 116 from the working zone 264 and thus moved out of the process booth 102 and can be removed from the workpiece transport carriage 232.
- the workpiece transport carriage 232 in this embodiment must be suitable only for the longitudinal transport, so that the height-adjustable transverse wheels 250 can be omitted.
- the workpiece 106 may remain stationary during both coating operations and need not be moved between the two coating jobs.
- the workpiece 106 is not moved during the application of the coating material, which enables a particularly uniform application of the coating material.
- Characteristic of this embodiment is that a particularly long working zone 264 is used, in which the dryer portal 266 can be parked.
- the dryer portal 266 is moved through a region of the working zone 264 in which a coating application has taken place.
- Very long travel rails 156 are used for the process of the pretreatment units 158, the coating units 182 and the dryer portal 266, so that these devices can all be moved over the entire length of the workpiece 106.
- the third embodiment of a coating system 100 shown in FIG. 10 is the same in construction and function as the second embodiment shown in FIG. 9, the above description of which is incorporated herein by reference.
- a fourth embodiment of a coating installation 100 shown in FIG. 11 differs from the second embodiment shown in FIG. 9 in that instead of a short drying zone 152, through which the workpiece 106 is continuously moved, a long convection drying zone 268 is provided the workpiece 106 can completely absorb.
- the workpiece 106 is not dried by irradiation by means of irradiation devices 192, but by means of warm air, which is passed through the convection drying zone 268 in recirculation mode.
- the workpiece 106 is first retracted completely on the workpiece transport carriage 232 in the longitudinal conveying direction 108 into the working zone 264 and stopped there. Subsequently, by means of the movable pretreatment units 158, a pretreatment of the entire workpiece 106 and by means of the movable coating units 182, a coating of the entire workpiece 106 is performed.
- the workpiece 106 is moved on the workpiece carriage 232 from the working zone 264 in the convection drying zone 268 and stopped there again.
- the convection drying zone 268 thus forms a drying device 189 relative to which the workpiece 106 is moved after the coating of the workpiece 106 is completed and before the drying of the workpiece 106 begins.
- the workpiece 106 on the workpiece transport carriage 232 in the longitudinal conveying direction 108 is completely moved out of the convection drying zone 268 and thus out of the process booth 102 and subsequently, in the context of the first embodiment of a coating.
- Management system 100 via the first Quer hamperspur 120, the remind mattersspur 114 and the second Quer thoroughlyspur 130 fed back to the entrance of the process booth 102, after which the workpiece 106 can be retracted for further coating operation in the working zone 264.
- the workpiece 106 on the workpiece transport carriage 232 is again moved completely out of the process booth 102 and subsequently removed from the workpiece transport carriage 232.
- This embodiment has the advantage that the workpiece 106 does not have to be moved during the application of the coating material, whereby a particularly uniform application of the coating material can be achieved.
- IR radiators infrared radiator
- two zones arranged in succession namely the working zone 264 and the convection drying zone 268, can each have at least the full length of the workpiece 106.
- traveling rails 156 are provided over the entire length of the installation.
- pretreatment and coating of the workpiece 106 take place at the same time in the same zone of the process booth 102, it is intended to uniformly condition the supply air for the pretreatment and the supply air for the coating.
- a use of a dry deposition device with pre-coated filter elements is provided at a length of the zone used for the coating application of less than 10 m.
- the fourth embodiment of a coating system 100 shown in FIG. 11 is identical in construction and function to the second embodiment shown in FIG. 9, the above description of which is incorporated herein by reference.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Coating Apparatus (AREA)
- Drying Of Solid Materials (AREA)
Abstract
Description
Claims
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
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EP10722333A EP2433076A2 (de) | 2009-05-22 | 2010-05-19 | Verfahren und beschichtungsanlage zum versehen eines werkstücks mit einer beschichtung |
BRPI1010673A BRPI1010673A2 (pt) | 2009-05-22 | 2010-05-19 | processo e instalação de revestimento para a aplicação de um revestimento em uma peça de trabalho |
MX2011012324A MX2011012324A (es) | 2009-05-22 | 2010-05-19 | Metodo y planta de revestimiento para proporcionar una pieza de trabajo con un revestimiento. |
CA2762508A CA2762508A1 (en) | 2009-05-22 | 2010-05-19 | Method and coating plant for providing a workpiece with a coating |
RU2011152241/06A RU2011152241A (ru) | 2009-05-22 | 2010-05-19 | Способ и установка для нанесения покрытий для оснащения изделия покрытием |
CN2010800223279A CN102439386A (zh) | 2009-05-22 | 2010-05-19 | 用于给工件设置涂层的方法和涂层设备 |
JP2012511275A JP2012527343A (ja) | 2009-05-22 | 2010-05-19 | 加工品に被膜を設けるための方法および被膜設備 |
US13/301,310 US20120094031A1 (en) | 2009-05-22 | 2011-11-21 | Method and coating plant for providing a workpiece with a coating |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102009023115A DE102009023115A1 (de) | 2009-05-22 | 2009-05-22 | Verfahren und Beschichtungsanlage zum Versehen eines Werkstücks mit einer Beschichtung |
DE102009023115.3 | 2009-05-22 |
Related Child Applications (1)
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US13/301,310 Continuation US20120094031A1 (en) | 2009-05-22 | 2011-11-21 | Method and coating plant for providing a workpiece with a coating |
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WO2010133624A2 true WO2010133624A2 (de) | 2010-11-25 |
WO2010133624A3 WO2010133624A3 (de) | 2011-04-07 |
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US (1) | US20120094031A1 (de) |
EP (1) | EP2433076A2 (de) |
JP (1) | JP2012527343A (de) |
KR (1) | KR20120016142A (de) |
CN (1) | CN102439386A (de) |
BR (1) | BRPI1010673A2 (de) |
CA (1) | CA2762508A1 (de) |
DE (1) | DE102009023115A1 (de) |
MX (1) | MX2011012324A (de) |
RU (1) | RU2011152241A (de) |
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ITTV20010131A1 (it) * | 2001-09-27 | 2003-03-27 | For El Base Di Vianello Fortun | Macchina automatica per l'estruzione e l'applicazione di sigillante sulle pareti laterali di un telaio distanziatore per vetrocamera e proce |
US8646404B2 (en) * | 2011-09-26 | 2014-02-11 | Todd E. Hendricks, SR. | Modular system with platformed robot, booth, and fluid delivery system for tire spraying |
DE102012211455A1 (de) | 2012-07-02 | 2014-01-02 | Wobben Properties Gmbh | Handhabungsvorrichtung zum Handhaben einer Rotorblattform zum Fertigen eines Rotorblattes einer Windenergieanlage |
KR101509864B1 (ko) * | 2012-11-07 | 2015-04-06 | (주)엘지하우시스 | 비산 파우더 크리닝 장치 |
DE102015205338A1 (de) | 2015-03-24 | 2016-09-29 | Cefla Deutschland Gmbh | Trocknungsvorrichtung |
ITUB20156085A1 (it) * | 2015-12-02 | 2017-06-02 | Igor Titon | Metodo di trattamento, composizione per il trattamento e sistema di trattamento per superfici atte ad essere sommerse in acqua e natante trattato con tale metodo |
JP6600405B2 (ja) * | 2016-04-07 | 2019-10-30 | インダストリー−ユニバーシティー コーペレイション ファンデーション ハンヤン ユニバーシティー エリカ キャンパス | 新血管生成抑制のための血管内皮成長因子受容体ターゲッティングペプチド−エラスチン融合ポリペプチド及び自己組立ナノ構造体 |
CN111256461B (zh) * | 2020-02-10 | 2021-12-28 | 北京华电光大环境股份有限公司 | 一种自动分离式红外烘干炉及烘干系统 |
DE102020213991A1 (de) | 2020-11-06 | 2022-05-12 | Dürr Systems Ag | Verfahren zum Betreiben einer Behandlungsanlage und Behandlungsanlage |
CN114084659B (zh) * | 2022-01-20 | 2023-03-10 | 常州铭赛机器人科技股份有限公司 | 作业轨 |
CN116692551A (zh) * | 2022-02-28 | 2023-09-05 | 宁德时代新能源科技股份有限公司 | 料带转向机构、烘干装置和极片制造设备 |
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-
2010
- 2010-05-19 KR KR1020117030145A patent/KR20120016142A/ko not_active Application Discontinuation
- 2010-05-19 RU RU2011152241/06A patent/RU2011152241A/ru not_active Application Discontinuation
- 2010-05-19 JP JP2012511275A patent/JP2012527343A/ja active Pending
- 2010-05-19 MX MX2011012324A patent/MX2011012324A/es not_active Application Discontinuation
- 2010-05-19 CA CA2762508A patent/CA2762508A1/en not_active Abandoned
- 2010-05-19 CN CN2010800223279A patent/CN102439386A/zh active Pending
- 2010-05-19 BR BRPI1010673A patent/BRPI1010673A2/pt not_active IP Right Cessation
- 2010-05-19 WO PCT/EP2010/056869 patent/WO2010133624A2/de active Application Filing
- 2010-05-19 EP EP10722333A patent/EP2433076A2/de not_active Withdrawn
-
2011
- 2011-11-21 US US13/301,310 patent/US20120094031A1/en not_active Abandoned
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See also references of EP2433076A2 |
Also Published As
Publication number | Publication date |
---|---|
WO2010133624A4 (de) | 2011-06-09 |
WO2010133624A3 (de) | 2011-04-07 |
JP2012527343A (ja) | 2012-11-08 |
BRPI1010673A2 (pt) | 2016-03-15 |
DE102009023115A1 (de) | 2010-11-25 |
CA2762508A1 (en) | 2010-11-25 |
KR20120016142A (ko) | 2012-02-22 |
US20120094031A1 (en) | 2012-04-19 |
MX2011012324A (es) | 2011-12-14 |
RU2011152241A (ru) | 2013-06-27 |
CN102439386A (zh) | 2012-05-02 |
EP2433076A2 (de) | 2012-03-28 |
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