EP4366883A1 - Installation de traitement et procédé de traitement de pièces - Google Patents

Installation de traitement et procédé de traitement de pièces

Info

Publication number
EP4366883A1
EP4366883A1 EP22744387.6A EP22744387A EP4366883A1 EP 4366883 A1 EP4366883 A1 EP 4366883A1 EP 22744387 A EP22744387 A EP 22744387A EP 4366883 A1 EP4366883 A1 EP 4366883A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
application
fluid
treatment
treatment system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22744387.6A
Other languages
German (de)
English (en)
Inventor
Oliver SEYBOTH
Marek DOWNAR
Karsten KÜRSCHNER
Klaus HEINSOHN
Dietmar Wieland
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Duerr Systems AG
Original Assignee
Duerr Systems AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Duerr Systems AG filed Critical Duerr Systems AG
Publication of EP4366883A1 publication Critical patent/EP4366883A1/fr
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B16/00—Spray booths
    • B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth
    • B05B16/95—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth the objects or other work to be sprayed lying on, or being held above the conveying means, i.e. not hanging from the conveying means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
    • B05B1/202—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor comprising inserted outlet elements
    • 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
    • B05B13/0405—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 with reciprocating or oscillating spray heads
    • B05B13/041—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 with reciprocating or oscillating spray heads with spray heads reciprocating along a straight line
    • 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
    • B05B13/0421—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 with rotating spray heads
    • 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
    • B05B13/0405—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 with reciprocating or oscillating spray heads

Definitions

  • a treatment system is in particular a fluid treatment system for carrying out a fluid treatment on vehicle bodies, for example in the manufacture of motor vehicles, in particular passenger cars.
  • vehicle bodies are placed in an immersion bath.
  • the object of the present invention is to provide a treatment system that is simple in design and enables efficient workpiece treatment.
  • this object is achieved by a treatment plant according to claim 1 .
  • the treatment system for treating workpieces is in particular a treatment system for carrying out a fluid treatment on vehicle bodies, in particular as part of a manufacturing process for manufacturing vehicles.
  • the treatment plant preferably includes a housing which surrounds a treatment room.
  • the treatment system preferably comprises a conveying device, by means of which at least one workpiece can be introduced into the treatment room and/or guided through the treatment room and/or removed from the treatment room. It can be favorable if the treatment system includes an application device for applying fluid to the at least one workpiece.
  • the fluid is in particular a treatment liquid.
  • the fluid for carrying out the treatment is in liquid form.
  • the fluid is, for example, heated fluid, in particular fluid with a temperature of 60° C. or more, for example 80° C. or more.
  • the fluid is water or is or comprises a surfactant-containing and/or alkaline aqueous solution.
  • a surfactant-containing and/or alkaline aqueous solution is particularly suitable for spray degreasing and/or immersion degreasing of workpieces.
  • the fluid can also be fresh water or demineralized water, for example, or can include fresh water and/or demineralized water.
  • a fluid is particularly suitable for spray rinsing and/or immersion rinsing of workpieces.
  • the fluid may be or include, for example, a phosphate or silane based chemical coating medium.
  • a phosphate or silane based chemical coating medium is particularly suitable for carrying out a coating process.
  • the application device comprises one or more application units for applying fluid to the at least one workpiece.
  • the one or more application units preferably each comprise one or more spray nozzles and/or spray nozzles or are designed as one or more spray nozzles and/or spray nozzles.
  • the treatment room is an individual room in which only a single workpiece can be accommodated or accommodated at a given point in time.
  • the treatment room is a room in which several workpieces can be accommodated at the same time at a given point in time.
  • the workpiece can be brought into the treatment room in one direction of introduction and removed from the treatment room counter to the direction of introduction by means of the conveying device.
  • At least one workpiece can be brought into a treatment room in one direction and removed from the treatment room in the same direction, in particular at an opposite end of the treatment room, by means of the conveyor device.
  • the treatment room is provided with application units of the application device on several sides.
  • the workpiece and/or a part of the treatment chamber accommodating the workpiece is surrounded on several sides, in particular on two sides, three sides or four sides, by one or more application units of the application device.
  • the application device comprises a plurality of application units, in particular spray nozzles and/or spray nozzles, arranged on opposite side walls.
  • fluid can be applied in particular simultaneously to a number of sides of a workpiece, in particular to a number of opposite and/or opposite sides of the workpiece.
  • the workpiece is movable in the treatment room, in particular linearly displaceable, and the application units are preferably arranged statically, ie in particular not pivotably and/or displaceably, the workpiece preferably being arranged by means of the conveyor device or a movement device is movable.
  • a relative movement of the workpiece relative to the application units of the application device can optionally be generated.
  • the workpiece can be moved back and forth at least once in the direction of movement by more than half the distance between two adjacent application units, so that the workpiece is evenly and/or completely exposed to fluid as a result of the movement of the workpiece relative to the application units.
  • the relative movement of the workpiece relative to the application units can be controlled and/or regulated by means of at least one initiator, e.g. a proximity sensor, which is arranged inside the treatment room, with the at least one initiator advantageously having protection class IP69k DIN EN 60529.
  • at least one initiator e.g. a proximity sensor, which is arranged inside the treatment room, with the at least one initiator advantageously having protection class IP69k DIN EN 60529.
  • the relative movement of the workpiece relative to the application units is controlled and/or regulated by means of at least one incremental encoder or in terms of time, in particular by specifying a movement sequence.
  • the relative movement of the workpiece relative to the application units is controlled and/or regulated by means of at least one initiator, which is arranged outside the treatment room and detects and/or monitors the movement of a lever device led out of the treatment room.
  • the treatment space is longer in the direction of movement of the workpiece than the workpiece itself, in particular at least twice as long as half the distance between two adjacent application units, so that the workpiece can be moved back and forth relative to the application units of the application device, without the workpiece touching the treatment room.
  • the acceleration of the relative movement can be varied or set. It can be particularly advantageous if the acceleration of the relative movement of the workpiece is at least approximately 0.1 m/s 2 , preferably at least approximately 0.25 m/s 2 , and/or at most approximately 5 m/s 2 , preferably at most approximately 2 m /s 2 .
  • the workpiece is preferably accelerated moderately in the respective direction of the relative movement in such a way that it is advantageously avoided that the drive rollers of the conveyor device spin.
  • the treatment room includes a closing device for partially or completely closing an access opening of the treatment room, through which the at least one workpiece can be introduced into the treatment room and/or through which the at least one workpiece can be removed from the treatment room.
  • the closing device is designed, for example, as a roller door or sliding door or lifting and lowering door.
  • the closing device is a splash guard to close the treatment chamber and/or to prevent fluid from splashing out.
  • a splash guard is preferably not pressure-resistant against a rising fluid level in the treatment room.
  • the closing device is a pressure-resistant closing device, in particular a sluice gate, by means of which the access opening of the treatment room can be closed in a fluid-tight manner, also against a rise in a fluid level within the treatment room.
  • the at least one workpiece is preferably spatially fixed, in particular fixed, for carrying out a treatment.
  • the at least one workpiece is in particular by means of the conveyor and / or in addition to the Conveying device provided fixing device spatially fixed, in particular fixed while the treatment is being carried out.
  • the treatment system includes a feed tank which is arranged in particular above the treatment room. Fluid can preferably be supplied to the application device from the supply tank. The fluid can preferably be applied to the at least one workpiece by means of the application device.
  • a pump for driving the fluid can preferably be dispensed with.
  • the fluid can then be fed from the feed tank to the application device and applied to the at least one workpiece, in particular exclusively due to the force of gravity.
  • the treatment system can include a discharge tank.
  • the discharge tank is arranged in particular below the treatment room. Fluid applied to the at least one workpiece can preferably be conducted from the treatment chamber into the discharge tank, in particular can be drained off into the discharge tank solely due to the force of gravity.
  • a pump is preferably not required for this.
  • the treatment system includes a pump for driving the fluid, in particular for feeding the fluid from the discharge tank back into the feed tank.
  • a treatment device in particular a filter device or other cleaning device for cleaning the fluid
  • a line which connects the discharge tank to the feed tank.
  • Contaminants cleaned from the workpiece in a treatment process can be separated from the fluid in this way, in order to provide only non-contaminated fluid or at least optimally prepared and/or cleaned fluid for the treatment of workpieces.
  • temperature control or other processing of the fluid can be provided in preparation for a subsequent treatment process.
  • the application device comprises at least one application unit, which is designed as at least one application lance.
  • At least one application unit in particular at least one application lance, can preferably be introduced into an interior space of the at least one workpiece or is arranged and/or designed to protrude into the interior space when the workpiece is in a treatment state.
  • fluid can preferably be applied to surfaces of the at least one workpiece facing an interior space of the at least one workpiece.
  • the application lance and/or the workpiece is movable, in particular linearly displaceable, in order to be able to apply fluid to all areas in the interior of the workpiece by means of the application lance.
  • one or more application units can be used to apply fluid to an outer surface of the at least one workpiece that faces away from an interior of the at least one workpiece, with the interior of the at least one workpiece facing surfaces of the at least one workpiece can be acted upon with fluid.
  • the housing can be at least partially flooded, in particular up to a height of at least approximately 40%, preferably at least approximately 60%, of a maximum room height of the housing and/or the treatment room and/or a maximum height of the workpiece.
  • the term “floodable” is to be understood in particular as meaning that liquid can be supplied in such a way that it accumulates inside the housing and the liquid level thus rises.
  • Side walls and/or one or more closing devices of the housing are preferably designed to be liquid-tight and withstand the liquid pressure resulting from the filling process.
  • a flooding device for flooding the housing can be provided as an alternative or in addition to one or more application devices.
  • fluid can be applied to the at least one workpiece by means of one or more application devices during the flooding process and/or after the flooding process has taken place, in particular when emptying the housing, for example for rinsing off impurities from the workpiece.
  • the workpiece can be charged with fluid partly by flooding the housing and partly by applying fluid by means of the application device in order to carry out a treatment process.
  • a sill area and/or floor area of a workpiece designed as a vehicle body can be acted upon by flooding with fluid.
  • cavities within the rocker panel and/or the floor area can be charged with fluid, which are or would be difficult to access by spraying and/or spraying.
  • one or more hood areas, A-pillars, B-pillars, C-pillars and/or a roof area of a workpiece designed as a vehicle body can be sprayed and/or sprayed with fluid in parallel, preferably by means of an application device, in order to carry out a treatment process.
  • the treatment is preferably cleaning, in particular degreasing.
  • the treatment is or includes a chemical and/or physical surface treatment.
  • the treatment is a coating.
  • the present invention also relates to a method for treating workpieces, in particular for carrying out a fluid treatment on vehicle bodies.
  • the invention is based on the object of providing a method by means of which workpiece treatment can be carried out efficiently.
  • the method for treating workpieces preferably includes introducing at least one workpiece into a treatment room and/or conveying at least one workpiece through the treatment room. Furthermore, the method preferably includes the application of fluid to the at least one workpiece by means of an application device.
  • the method according to the invention preferably has one or more features and/or advantages described in connection with the treatment plant.
  • the treatment plant according to the invention preferably comprises one or more features of the method according to the invention.
  • the at least one workpiece is subjected to fluid at least approximately uniformly and/or simultaneously at least on its outer surfaces.
  • the at least one workpiece is acted upon with fluid at least approximately uniformly and/or at least approximately simultaneously, at least on its inner surfaces.
  • the at least one workpiece is preferably acted upon both on its outer surfaces and on its inner surfaces at least approximately uniformly and/or at least approximately simultaneously.
  • the fluid is preferably applied over a large area, in particular to an area of at least approximately 50%, preferably at least approximately 80%, in particular at least approximately 90%, of a total surface of the workpiece, in particular applied at least approximately simultaneously.
  • the fluid is applied uniformly to the surfaces of the at least one workpiece such that a fluid pressure and/or a fluid amount and/or a fluid volume with less than about 30% variation, preferably less than about 20% variation, is applied to each of the fluid location of the surfaces is the same.
  • the fluid is applied to the at least one workpiece during a fluid process for at least partially flooding the treatment chamber and/or during an emptying process after the flooding has taken place.
  • the at least one workpiece is sprayed and/or sprayed with fluid in a first treatment chamber and that the at least one workpiece is then treated in a second treatment chamber that is different from the first treatment chamber by flooding the second treatment chamber with the same Fluid and / or another fluid is applied.
  • the workpiece is acted upon in one and the same treatment chamber both by spraying and/or spraying and by flooding with one or more fluids.
  • a flow is generated in the flooded part of the treatment chamber during a flooding process for carrying out a workpiece treatment.
  • the at least one workpiece can be flown in an optimized manner in order to optimize the treatment, for example in order to remove impurities in a simplified manner.
  • air bubbles can preferably be expelled in this way in order to be able to completely wet cavities and interior spaces.
  • a flow can be generated, for example, by flood nozzles.
  • pumps can be provided to generate a flow in the treatment chamber.
  • an agitator and/or a nozzle device for example one or more pivoting nozzles, can be provided in order to optimize the flow onto and/or through the at least one workpiece.
  • a flooding process and an application process by spraying and/or spraying fluid are provided, it can be provided that after a flooding process has been carried out, in particular a flooding process for workpiece treatment, a fluid different from the fluid used for flooding is used for the Spraying and / or rinsing of at least one workpiece is used.
  • a treatment process for example a chemical surface treatment process, can be prevented immediately after the fluid has been drained from the treatment chamber or even during this in the part of the at least one workpiece protruding from the fluid.
  • rinsing off the at least one workpiece by spraying and/or spraying fluid onto the at least one workpiece can serve to remove dirt particles and/or foam or other impurities adhering to the at least one workpiece when the fluid used for flooding is drained off the at least one workpiece to remove.
  • Fluid used in a treatment process can be used in particular after it has been prepared, in particular filtered and/or tempered, to carry out the same treatment process on another workpiece.
  • a fluid to be used after a treatment process has been carried out to carry out another treatment process in particular a treatment process of a different type.
  • the fluid can optionally be discharged into different discharge tanks in order to To be made available to treatment processes, in particular depending on the degree of contamination of the fluid.
  • fluid prepared for this purpose for example fluid subjected to nanofiltration or ultrafiltration
  • high-purity filtrate is used for a spraying process and/or spraying process, while concentrate is returned to the rest of the fluid, in particular for carrying out flooding processes.
  • a post-rinsing process can be carried out preferably with high-purity fluid for an optimized rinsing effect, with the overall composition of the fluid preferably remaining unchanged at the same time, especially after the filtrate and the concentrate have been mixed again in the discharge tank.
  • the treatment comprises a degreasing process and/or a rinsing process and/or a coating process.
  • the fluid can preferably be applied to the workpiece in one or more time-varying spray patterns or spray patterns.
  • a spray pattern or spray image is in particular a pattern or image on the surface of the workpiece resulting from the geometry of a fluid jet.
  • the application device preferably comprises one or more rotatable or rotating application units, by means of which a rotating spray pattern or spray pattern can be generated on the workpiece.
  • a rotating spray pattern or spray pattern results in particular from a temporal variation in the point of impact of the spray jet or spray jet, which is emitted onto the workpiece by means of one or more application units. Independent of time, the result is preferably an area that is acted upon evenly on average, in particular an at least approximately rotationally symmetrical overall spray pattern or overall spray pattern.
  • a rotating or rotatable application unit is preferably used to generate a locally varying spray pattern or spray pattern, which only develops over time into the uniform overall spray pattern or overall spray pattern as a result of the rotation.
  • the one or more application units are preferably coupled and/or synchronized with one another in such a way that spray jets applied by the application units to the workpiece always impinge on different surface areas of the workpiece at any point in time.
  • adjacent application units and/or spray jets and/or spray jets are designed to rotate in opposite directions.
  • Overlapping overall spray patterns or overall spray patterns on the workpiece can preferably be generated by means of a plurality of the application units of the application device.
  • an at least approximately uniform application of fluid to the workpiece can be achieved by means of the multiple application units.
  • the jets or jets of spray are preferably always directed at different locations on the workpiece at a given point in time.
  • a simultaneous impingement of a region with several spray jets or spray jets from different application units is thereby preferably prevented.
  • the application device preferably comprises a plurality of application units which can be moved, in particular rotated, together by means of a distributor device of the application device for supplying the fluid to the application units.
  • the distributor device can be, for example, a distributor pipe and/or a spray arm.
  • the distributor device is preferably a rotor which comprises a plurality of application units which are arranged at different distances from the axis of rotation with respect to an axis of rotation.
  • the axis of rotation is in particular essentially perpendicular to a longitudinal axis of the rotor.
  • the rotor can be driven in rotation, for example by means of a turbine wheel and/or by means of a gear inside the application device, in particular inside the distributor device, using the fluid as a drive.
  • a rotating drive of the rotor can be brought about by recoil through a suitable inclination of outlet openings of the application units.
  • a rotational movement of the at least one rotor can be monitored, controlled and/or regulated by means of one or more sensors, in particular magnetic-inductive sensors.
  • the application device comprises a number of application units, each with one or more distribution devices, in particular according to one of the embodiments described above.
  • the distributor devices are in particular arranged at different heights and/or with mutually parallel axes of rotation and/or offset to one another along the axes of rotation, in particular in order to allow free movement of the respective distributor devices and at the same time an overlapping of the areas to which fluid is to be applied by the respective application units, in particular to ensure overlapping overall spray patterns or overall spray patterns.
  • the at least one workpiece can be moved, in particular linearly displaced, by means of the conveying device.
  • a linear displacement in one direction and then a linear displacement in an opposite direction can be provided, or only a single linear displacement in one direction, in order to uniformly apply fluid to the at least one workpiece using the application device. It can be advantageous if the fluid can be applied by means of the application device both to an outer surface of the at least one workpiece, in particular to an outer visible surface, and to an inner surface of the at least one workpiece, in particular a surface of an interior space.
  • the application device comprises a plurality of application units which are arranged in a regular and/or grid-like and/or matrix-like pattern.
  • a grid-like or matrix-like pattern is to be understood in particular as such patterns in which a plurality of rows or rows or elements, in particular application units, arranged sequentially in some other way in a pattern are provided.
  • application units arranged in horizontal and vertical lines or rows are provided.
  • one or more application units are arranged outside a central area of the at least one workpiece, in particular with respect to a height direction of the workpiece, in particular only in an upper area and/or a lower area of the at least one workpiece.
  • the width of the treatment room can be minimized.
  • the application device in particular the application units of the application device, surrounds the treatment space accommodating the at least one workpiece or the part of the treatment space surrounding the at least one workpiece essentially in the manner of a portal and/or cage-like and/or at least on three sides. It can be favorable if one or more application units, in particular several application units arranged in a regular and/or grid-like and/or matrix-like pattern, can be moved fluidly, in particular linearly, during the application.
  • the movement can in particular be a movement in an at least approximately vertical direction, in an at least approximately horizontal direction or at an angle thereto.
  • one or more application units are rotatable or pivotable.
  • vertically or horizontally arranged rows or rows of application units can be uniformly rotatable or pivotable, for example to achieve a varying rotational orientation of at least approximately ⁇ 20°, preferably at least approximately ⁇ 30°, starting from a central position.
  • the at least one workpiece is preferably moved, in particular linearly displaced.
  • one or more application units of the application device are preferably moved, in particular rotated or pivoted, during the application of fluid.
  • FIG. 1 shows a schematic perspective illustration of a first embodiment of a treatment system, in which a fluid can be applied to a workpiece by means of an application device;
  • FIG. 2 is another schematic perspective view of
  • FIG. 3 shows a schematic perspective illustration of a second embodiment of a treatment system, in which a combination of a flooding device and an application device for carrying out treatment processes is provided;
  • Fig. 4 is another schematic perspective view of the second
  • FIG. 5 shows a schematic vertical cross section through a third embodiment of a treatment system, in which a treatment room is provided on three sides with application units of an application device;
  • FIG. 6 shows a schematic side view of the treatment plant from FIG. 5
  • FIG. 7 shows a schematic plan view of the treatment plant from FIG.
  • FIG. 8 shows a schematic illustration corresponding to FIG. 5 of a fourth
  • Embodiment of a treatment system in which pivotable application units are provided
  • FIG. 9 shows a schematic illustration corresponding to FIG.
  • FIG. 10 shows a schematic illustration corresponding to FIG. 5 of a fifth embodiment of a treatment plant, in which an application device with rotating distribution devices of the application device is provided;
  • FIG. 11 shows a schematic illustration corresponding to FIG. 10
  • FIG. 12 shows a schematic representation of the treatment plant from FIG. 10 corresponding to FIG. 7;
  • FIG. 13 shows a schematic illustration corresponding to FIG
  • Treatment plant which comprises a lance-shaped application unit
  • FIG. 14 shows a schematic illustration corresponding to FIG. 6 of a sixth embodiment of a treatment system, in which a combination of flood treatment and spraying or spraying treatment is provided;
  • FIG. 15 shows a schematic representation of the treatment plant from FIG. 14 corresponding to FIG. 7.
  • a first embodiment shown in FIGS. 1 and 2 of a treatment system designated as a whole by 100 serves to treat workpieces 102, for example vehicle bodies 104 (not shown in FIGS. 1 and 2, but indicated in FIGS. 5 et seq.).
  • the treatment plant 100 comprises a housing 106 which is, for example, a metal, box-shaped, in particular cuboid, housing.
  • the housing 106 comprises a plurality of side walls which surround a treatment room 108 of the treatment system 100 .
  • the embodiment of the treatment system 100 shown in FIGS. 1 and 2 forms in particular a treatment station 110 for the treatment of workpieces 102.
  • a treatment station 110 for the treatment of workpieces 102.
  • several such treatment stations 110 can be provided.
  • the treatment system 100 comprises an application device 112, which in particular comprises a plurality of application units 114, for example spray nozzles 116.
  • application device 112 which in particular comprises a plurality of application units 114, for example spray nozzles 116.
  • spray nozzles for applying fluid, in particular liquid.
  • spray nozzles can also be provided instead of such spray nozzles 116 .
  • the application units 114 are arranged in particular in at least approximately horizontal rows 118 and/or in at least approximately vertical rows 120. For example, a matrix-like or grid-like arrangement of the application units 114 is provided.
  • Application units 114 form, in particular, a nozzle matrix 122 of application device 112.
  • the application units 114 are preferably arranged on one of the side walls of the housing 106 and aligned in the direction of a center of the treatment chamber 108, in particular in order to be able to apply fluid to a workpiece 102 arranged in the center of the treatment chamber 108.
  • opposite side walls of the housing 106 are each provided with a nozzle matrix 122 in this embodiment.
  • the treatment system 100 further comprises a conveyor device 124 for introducing at least one workpiece 102 into the treatment room 108 and/or for guiding at least one workpiece 102 through the treatment room 108 and/or for conveying at least one workpiece 102 out of the treatment room 108.
  • the conveyor device 124 is in particular a clock conveyor device 126.
  • a clock conveyor device 126 is in particular provided that a workpiece 102 to be treated is locked in a predetermined treatment position, in particular fixed by means of an optional fixing device.
  • a predetermined positional relationship with the application units 114 can be obtained in order to ensure reliable workpiece treatment when stationary.
  • the housing 106 is accessible in particular through a lateral access opening 128 .
  • a workpiece 102 can be introduced into the treatment space 108 through the access opening 128 by means of a roller conveyor or rail conveyor (not shown) which forms the conveyor device 124 .
  • a closing device 130 serves to close the treatment chamber 108 and is preferably also provided in the other embodiments.
  • the closing device 130 can be used to prevent liquid from escaping into an area surrounding the housing 106 .
  • the closing device 130 is, for example, a roller door or a sluice gate, depending in particular on whether the closing device 130 is only intended to serve as a splash guard or also to seal the treatment chamber 108 in a fluid-tight manner during a flooding process.
  • the treatment plant 100 preferably comprises a feed tank 132 and a discharge tank 134.
  • the feed tank 132 preferably serves to feed fluid to the application device 112.
  • the feed tank 132 is preferably arranged above the treatment chamber 108 with respect to a direction of gravity.
  • the fluid located in the feed tank 132 can thus be fed to the application device 112 simply by gravity, in particular without using a pump, in order to ultimately be applied to the workpiece 102 .
  • an additional pump can be provided, in particular to increase the pressure.
  • the discharge tank 134 is preferably arranged below the housing 106 with respect to the direction of gravity. The fluid discharged in the treatment chamber 108 can thus flow off into the discharge tank 134 in a particularly simple manner, in particular without using a pump, which, however, can also optionally be additionally provided.
  • the fluid can preferably be used multiple times, in particular for carrying out multiple treatment processes on multiple workpieces 102.
  • the treatment system 100 preferably comprises a pump 136, by means of which the fluid can be conveyed in particular from the discharge tank 134 into the feed tank 132.
  • a processing device 138 for example a cleaning device 140 and/or a temperature control device 142, can optionally be provided.
  • the fluid can be treated by means of the treatment device 138 before it is fed to the feed tank 132, for example by filtering out suspended matter and other impurities which could impair the treatment result.
  • the fluid can be pumped from the discharge tank 134 of the treatment system 100 into the supply tank 132 of the same treatment system 100, in particular the same station 110 of the treatment system 100.
  • the fluid is then provided in particular for carrying out the same treatment process.
  • provision can be made for the fluid to be fed to different treatment stations 110 one after the other in a cascade-like manner in order to carry out treatment processes of different types. For example, depending on the degree of contamination of the fluid, its use at rinsing stations with different cleanliness requirements can be provided.
  • a workpiece 102 can be acted upon with fluid over a large area, in particular from both sides. It can be favorable if the treatment system 100 also includes an application unit 114 which can be introduced into an interior of the workpiece 102 .
  • an application unit 114 is, for example, the application lance 144 in Figs. 1 and 2.
  • the application lance 144 preferably protrudes into the treatment chamber 108 .
  • this is preferably pushed onto the application lance 144, in particular while avoiding contact with the application lance 144.
  • the application lance 144 protrudes into the interior of the workpiece 102.
  • a spray nozzle 116 for example a rotating spray nozzle 116, is arranged at the end of the application lance 144 in order to be able to apply fluid to the interior of the workpiece 102.
  • a plurality of spray nozzles 116 in particular movable and/or rotating spray nozzles 116, can also be provided at the end of application lance 144 in order to enable the application of a sufficient quantity of fluid and uniform and large-area wetting of the surfaces in the interior of workpiece 102.
  • an application unit 114 embodied as a spray ball or rotary cleaner can be arranged at the end of the application lance 144 .
  • one or more surge nozzles can also be provided in order to be able to introduce a large quantity of the fluid into the interior of the workpiece 102 . Coarse dirt and dirt cleaned off by means of the application lance 144 can be easily rinsed out of the workpiece 102 in this way.
  • the application lance 144 can also preferably be used to clean the treatment chamber 108 itself, particularly when a workpiece 102 is not present.
  • FIGS. 3 and 4 An alternative embodiment of a treatment system 100 shown in FIGS. 3 and 4 differs from the embodiment shown in FIGS Carrying out a flood process allows.
  • the closing device is designed in particular to be pressure-resistant in order to allow a rising fluid level in the treatment chamber 108 and to prevent fluid from escaping.
  • the embodiment of the treatment system 100 shown in FIGS. 3 and 4 comprises in particular a flooding device 146 for carrying out the flooding process.
  • a flood pipe 148 of the flood device 146 is provided, which leads from a feed tank 132 (not shown in FIGS. 3 and 4) into the treatment room 108 .
  • the flood pipe 148 opens out, in particular, in a region of the treatment chamber 108 that is lower in relation to the direction of gravity.
  • flood pipe 148 has a diameter that is significantly larger than the line diameter of application device 112, for example by a factor of at least 2, preferably at least 5. This allows a particularly large amount of fluid to be introduced into treatment chamber 108 in a short time.
  • the application device 112 in the second embodiment of the treatment system 100 is used, for example, to apply fluid to carry out a treatment process, with this treatment process being able to be a chemical or physical treatment or also a cleaning and simple rinsing.
  • the application device 112 preferably has a part that can be seen in FIG.
  • a nozzle matrix 122 is arranged on the top wall 150 .
  • the application units 114 which are arranged on the top wall 150, can also be dripping elements or simple line ends in order to deliver fluid dropwise or in a surge onto the workpiece 102.
  • Different sections of the application device 112 can optionally be supplied with different fluids.
  • a treatment fluid for carrying out a physical or chemical treatment can be applied with lateral application units 114, while a rinsing fluid can be supplied, for example, via the application units 114 arranged on the top wall 150.
  • Flooding device 146 and application device 112 preferably work together in such a way that after a flooding process has been carried out using application device 112, a rinsing process is carried out, in particular to remove foam and other floating contaminants that adhere to workpiece 102 when the fluid is drained at the end of the flooding process can remove from the workpiece 102. Furthermore, the application device 112 and the flooding device 146 can of course also be used together for the application of the same treatment fluid.
  • the second embodiment of the treatment system 100 shown in FIGS. 3 and 4 corresponds to the embodiment shown in FIGS. 1 and 2 in terms of structure and function, so that reference is made to the description above.
  • a third embodiment of a treatment system 100 shown in FIGS. 5 to 7 differs from the first embodiment shown in FIGS 108 distributed around.
  • the application units 114 are arranged in particular in a sill area of a workpiece 102 embodied as a vehicle body 104 and in a roof area.
  • a movement device 152 can optionally be provided, by means of which the application device 112 and/or the workpiece 102 to be treated can be moved, in particular linearly.
  • the workpiece to be treated can be movable, in particular linearly movable, in the treatment room 108 by means of the conveying device 124 .
  • the relative positions of the application units 114 relative to the workpiece 102 can thus be changed by means of the movement device 152 or the conveyor device 124 in order to be able to completely apply fluid to the workpiece 102 .
  • the application units 114 can be distributed over the entire length of the treatment room 108 .
  • workpiece 102 can be moved back and forth at least once by more than half the distance between two adjacent application units 114, so that the relative movement of workpiece 102 relative to application units 114 causes workpiece 102 is evenly and / or fully charged with fluid.
  • the application units 114 are arranged in a portal-like manner around only one area of the workpiece 102 and that the workpiece 102 can ultimately be acted upon with fluid over its entire surface by the movement by means of the movement device 152 .
  • each application unit 114 of the application device 112 can be used to generate overall spray patterns 154 which preferably overlap on the workpiece 102 and thus enable at least approximately uninterrupted wetting of the workpiece 102 with fluid.
  • a uniform application of fluid can be provided, with a similar amount of fluid preferably being able to be applied over the entire surface of workpiece 102 with at least approximately identical process parameters, in particular droplet sizes and impact speeds.
  • a movement in particular a movement of the workpiece 102, for example a linear movement, by at least approximately 100 mm, preferably at least approximately 200 mm, and/or at most approximately 1000 mm, for example at most approximately 700 mm, in particular at most approximately 500 mm.
  • a tilting and/or rotational movement of the application device 112 and/or the workpiece 102 can preferably be provided by means of the movement device 152 .
  • the application units 114 embodied as spray nozzles 116 can be, for example, full cone nozzles, in particular with a wide spray cone and/or nozzles with, for example, a narrower spray cone, but with a greater throw distance and/or exit speed.
  • spray nozzles 116 can be, for example, full cone nozzles, in particular with a wide spray cone and/or nozzles with, for example, a narrower spray cone, but with a greater throw distance and/or exit speed.
  • flat jet nozzles can be provided for applying fluid to surfaces that are located further away, for example in edge regions and/or on an engine hood and/or a trunk lid.
  • Application device 112 preferably includes different sections, in particular different distributor pipes for supplying fluid to application units 114, wherein the different sections, in particular the different distributor pipes, can be subjected to different pressures, in particular to create different spray and/or spray patterns and/or spray patterns and /or to generate spray patterns by means of the application units 114.
  • a flexible supply line for supplying fluid to the application device 112 can preferably be provided, for example an elastic hose.
  • the movement device 152 can preferably comprise a pneumatic cylinder (not shown) or other drive unit for generating the movement.
  • a fourth embodiment of a treatment system 100 shown in FIGS. 8 and 9 differs from the third embodiment shown in FIGS. 5 to 7 essentially in that several vertical rows 120 and/or horizontal rows 118 of application units 114 are rotatably arranged as a whole are, in particular to vary an exit direction of the fluid from the application units 114.
  • Each row 120 and/or each row 118 is preferably assigned a distributor pipe on which the application units 114 are arranged and which can be rotated as a whole for rotating the application units 114 or at least includes one or more rotatable sections.
  • a rotation angle of at least approximately ⁇ 20°, preferably at least approximately ⁇ 30°, starting from a central position of the application units 114, is provided.
  • the application units 114 can be rotated pneumatically and/or electrically, for example.
  • a mechanical linkage can be provided to bring about a movement, with in particular a plurality of application units 114, preferably a plurality of vertical rows 120 and/or a plurality of horizontal rows 118 being movable simultaneously and/or together, in particular synchronously.
  • the fourth embodiment of the treatment system 100 shown in FIGS. 8 and 9 corresponds in terms of structure and function to the third embodiment shown in FIGS. 5 to 7, so that reference is made to the description above.
  • a fifth embodiment of a treatment system 100 shown in FIGS. 10 to 12 differs from the embodiment shown in FIGS. 8 and 9 essentially in that the application device 112 comprises a plurality of distributor devices 156 which form rotors 158 and are, for example, at least approximately vertical Rotational axes 160 are rotatable.
  • the distribution devices 156 each have, in particular, a plurality of application units 114 which are arranged in a row, for example.
  • the rotation of the distributor device 156 about the axis of rotation 160 results in the fluid being applied to the workpiece 102 in a manner that varies over time.
  • a plurality of such rotors 158 are preferably provided, which are arranged in particular at different heights in order to allow the spray patterns or spray patterns to overlap and thus uniformly wet the workpiece 102 with fluid.
  • the application units 114 are arranged in particular above the workpiece 102 and/or below the workpiece 102.
  • the fifth embodiment of the treatment system 100 shown in FIGS. 10 to 12 corresponds in terms of structure and function to the fourth embodiment shown in FIGS. 8 and 9, so that reference is made to the description above.
  • FIG. 13 An optional additional application unit 114 is shown in FIG. 13, which functionally corresponds to the application lance 144 shown in FIGS. 1 and 2 and serves to apply fluid to the interior of the workpiece 102 .
  • a movement device 152 can be provided, for example in order to introduce the application lance 144 into the interior of the workpiece 102 .
  • the workpiece 102 can also be introduced into the treatment chamber 108, for example by means of the conveying device 124, such that the application lance 144 protrudes into the interior of the workpiece 102 in an end position or treatment position of the workpiece 102.
  • a sixth embodiment of a treatment system 100 shown in FIGS. 14 and 15 differs from the second embodiment shown in FIGS. 3 and 4 essentially in that two flood pipes 148 are provided for supplying fluid to the treatment chamber 108 on both sides and/or symmetrically are.
  • the flood pipes 148 are in particular arranged in such a way that the inflowing fluid flows along an outside of the workpiece 102 and is then returned in a central region, in the process in particular flowing through the workpiece 102 .
  • One or more application units 114 can serve to additionally supply fluid and/or to drive a fluid flow.
  • a lance-like stirring device 162, for example, which projects into the interior of the workpiece 102, can also be provided, for example in order to optimize and/or drive a flow in the interior of the workpiece 102.
  • FIGS. 14 and 15 corresponds to the embodiment shown in FIGS. 3 and 4 in terms of structure and function, so that reference is made to the description above.

Landscapes

  • Spray Control Apparatus (AREA)

Abstract

L'invention vise à mettre en oeuvre une installation de traitement pour le traitement de pièces, en particulier pour la réalisation d'un traitement par fluide sur des carrosseries de véhicules, qui est de structure simple et permet un traitement efficace des pièces. À cet effet, l'installation de traitement comprend les éléments suivants : une enceinte qui entoure un espace de traitement; un dispositif de transport servant à transporter les pièces ; et un dispositif d'application servant à appliquer un fluide sur les pièces.
EP22744387.6A 2021-07-08 2022-07-07 Installation de traitement et procédé de traitement de pièces Pending EP4366883A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021207220.8A DE102021207220A1 (de) 2021-07-08 2021-07-08 Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
PCT/DE2022/100487 WO2023280351A1 (fr) 2021-07-08 2022-07-07 Installation de traitement et procédé de traitement de pièces

Publications (1)

Publication Number Publication Date
EP4366883A1 true EP4366883A1 (fr) 2024-05-15

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Application Number Title Priority Date Filing Date
EP22744387.6A Pending EP4366883A1 (fr) 2021-07-08 2022-07-07 Installation de traitement et procédé de traitement de pièces

Country Status (5)

Country Link
US (1) US20240316589A1 (fr)
EP (1) EP4366883A1 (fr)
CN (1) CN117561124A (fr)
DE (2) DE102021207220A1 (fr)
WO (1) WO2023280351A1 (fr)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4102829A1 (de) * 1991-01-31 1992-08-06 Martin Dipl Ing Fahrenberger Verfahren und anlage zum entfernen von belag von gegenstaenden
DE19730886A1 (de) * 1997-07-18 1999-01-21 Audi Ag Verfahren zur Herstellung einer Fahrzeugkarosserie und Vorrichtung zur Durchführung des Verfahrens
US6755339B2 (en) * 2002-06-21 2004-06-29 Delphi Technologies, Inc. Fluxing apparatus for applying powdered flux
DE202005020926U1 (de) 2004-11-04 2007-01-11 Knoth Automation Gmbh Vorrichtung zur Reinigung von Werkstücken
US7559333B2 (en) * 2005-01-14 2009-07-14 Michael Belanger Vehicle wash apparatus
AT508092B1 (de) 2009-03-24 2011-03-15 Hubert Ing Knoth Vorrichtung zur reinigung und kühlung von werkstücken
DE102018116358A1 (de) * 2018-07-05 2020-01-09 Eisenmann Se Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102018118067A1 (de) 2018-07-26 2020-01-30 Ecoclean Gmbh Reinigungsvorrichtung
DE102019215079A1 (de) 2019-09-30 2021-04-01 Dürr Systems Ag Behandlungsanlage und Behandlungsverfahren

Also Published As

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DE112022003441A5 (de) 2024-05-23
DE102021207220A1 (de) 2023-01-12
CN117561124A (zh) 2024-02-13
WO2023280351A1 (fr) 2023-01-12
US20240316589A1 (en) 2024-09-26

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