WO2021175851A1 - Installation de traitement et procédé de traitement pour traiter des pièces - Google Patents

Installation de traitement et procédé de traitement pour traiter des pièces Download PDF

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Publication number
WO2021175851A1
WO2021175851A1 PCT/EP2021/055180 EP2021055180W WO2021175851A1 WO 2021175851 A1 WO2021175851 A1 WO 2021175851A1 EP 2021055180 W EP2021055180 W EP 2021055180W WO 2021175851 A1 WO2021175851 A1 WO 2021175851A1
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WO
WIPO (PCT)
Prior art keywords
treatment
workpiece
treatment room
gas
conveying
Prior art date
Application number
PCT/EP2021/055180
Other languages
German (de)
English (en)
Inventor
Herbert Schulze
Original Assignee
Eisenmann Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eisenmann Gmbh filed Critical Eisenmann Gmbh
Priority to EP21710414.0A priority Critical patent/EP4115131A1/fr
Priority to CN202180019118.7A priority patent/CN115427748A/zh
Publication of WO2021175851A1 publication Critical patent/WO2021175851A1/fr

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Classifications

    • 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
    • F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
    • F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
    • 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
    • F26B15/14—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 trays or racks or receptacles, which may be connected to endless chains or belts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B2210/00—Drying processes and machines for solid objects characterised by the specific requirements of the drying good
    • F26B2210/12—Vehicle bodies, e.g. after being painted

Definitions

  • the invention relates to a treatment system for treating, in particular for drying, of workpieces, in particular vehicle bodies, with a) a treatment cabin which has a housing and a treatment room located in the housing; b) a conveying system by means of which the workpieces can be conveyed along a conveying path and in a conveying direction into and / or through the treatment room, such that a main axis of a workpiece runs along at least one transverse conveying section of the conveying path transversely to the conveying direction ; c) a gas system by means of which a gas flow can be generated in the treatment room and which comprises several inlet openings for admitting a gas into the treatment room and several outlet openings for discharging the gas from the treatment room.
  • the invention relates to a treatment method for treating, in particular for drying, workpieces, in particular vehicle bodies, in a treatment plant, which comprises:
  • Treatment systems of the type mentioned at the beginning are usually part of a production or treatment line that comprises several treatment systems in which different treatments are carried out on workpieces, from the semi-finished products to their completion.
  • the different treatment plants can be present at different locations, which makes it necessary to transport intermediate products between the locations.
  • the workpieces are usually conveyed by means of a conveyor system to one or more treatment cabins, in which the workpieces are then treated either until they are completed or until they reach an intermediate product that can be transported further.
  • the workpieces are conveyed into the treatment rooms of the individual treatment booths in cyclical or continuous conveying operation and / or, for example in the case of continuous treatment booths such as continuous dryers, conveyed through them.
  • the conveyor system can comprise trolleys and / or towing or pushing elements, by means of which the workpieces can be conveyed along a conveyor route specified mechanically and / or by waymarking by the conveyor system.
  • floor-bound, possibly free-moving, or rail-bound transport trolleys are known from the prior art.
  • the conveyor line can be specified by a system-internal central control and / or by the on-board control device in addition to conveyor rails or the path markings mentioned.
  • the treatment cabins have a housing that is in the As a rule, it is closed or closable on the whole side in such a way that only small proportions of the harmful atmosphere, which is mostly an aerosolic mixture of gases, liquids and / or particulate solids, reach undesired areas.
  • the treatment systems known from the prior art often have a gas system for discharging the harmful atmosphere from the treatment room, by means of which a gas flow can be generated in the treatment room.
  • the gas system has a plurality of inlet openings for admitting a gas into the treatment room and a plurality of outlet openings for discharging the same.
  • a gas is also understood to mean gas mixtures, such as, for example, air or the like.
  • the mixture of the harmful atmosphere and the gas admitted into the treatment room is often fed to a conditioning device after it has been discharged from the treatment room, which can have several conditioning stages and by means of which the harmful atmosphere is converted into a gas that can be fed back into the treatment room, in the case of air then from " Circulating air "spoken, can be conditioned.
  • a conditioning device for example, the aggressive and harmful components of the harmful atmosphere can be separated off and the temperature and the proportion of aerosolically and / or gaseous water can be set.
  • Such a gas system can, however, not only serve to remove the harmful atmosphere, but also, for example, for drying, in particular convection and / or radiation drying, of the workpieces.
  • the gas flow which is often pre-conditioned by the conditioning device, then has a double function: it also heats the workpieces, whereby a liquid located on the workpiece surface evaporates into a treatment room atmosphere or possibly initiates crosslinking processes who the. This leads to the workpieces being dried.
  • the treatment system is to be kept short in the conveying direction, it can be useful to convey the workpieces into and / or through the treatment room in such a way that a main axis of the respective workpiece runs along at least one transverse conveying section of the conveying path transversely to the conveying direction .
  • This makes it possible, in particular for workpieces that are longer than wide and whose main axis is defined by the longitudinal axis, over less length in the conveying direction compared to the usual conveying of the work pieces, in which the main axis is always parallel to the conveying direction to accommodate the same number of workpieces in the treatment room of the treatment cabin.
  • the main axis can be defined, for example, by an existing axis of symmetry.
  • the main axis in the transverse conveying section runs transversely to the conveying direction.
  • DE 10 2015 017 280 B3 describes a treatment system for treating workpieces designed as vehicle bodies, in which inlet openings on the one hand and outlet openings on the other hand are arranged on opposite sides of a diagonal plane extending parallel to a conveying direction and diagonally through a treatment room. Furthermore, DE 10 2015 017 279 B3 describes a similar treatment system in which inlet openings on the one hand and outlet openings on the other hand are arranged on opposite sides of a workpiece.
  • the object of the invention is therefore to provide a treatment system for treating workpieces and a treatment method for treating workpieces in a treatment system of the type mentioned, which counteract the disadvantages of the prior art explained above.
  • the object is achieved in that the inlet openings and outlet openings in the transverse conveying section are arranged as follows: d) on one and the same side of the workpiece perpendicular to the conveying direction; and / or e) exclusively in two adjacent space quadrants of the treatment room which extend parallel to the conveying direction and which are defined by a vertical plane, a horizontal plane and a housing section of the housing; and or f) in one and the same spatial sector of the treatment room, which is defined by a first diagonal plane, a second diagonal plane and a housing section of the housing, the first and second diagonal planes running parallel to the conveying direction.
  • the horizontal plane extends parallel to the conveying direction through the treatment room.
  • the term “horizontal” used below is intended to express an extension that is parallel with respect to the horizontal plane.
  • the vertical plane runs perpendicular to the horizontal plane and parallel to the conveying direction.
  • the term “vertical” below expresses an extension that is perpendicular to the horizontal plane.
  • the space quadrants that are formed by these two planes and the housing section of the housing cut by them can have essentially the same volume and / or - with a simplified two-dimensional view of a sectional view transverse to the conveying direction - the same area. However, the volumes or areas can also be different from one another.
  • a vertical plane running parallel to the varying conveying directions and moving tangentially along the curved route of the subsection is then created below the vertical plane.
  • the two adjacent space quadrants of the treatment room extending parallel to the conveying direction are to be understood as following the curve course.
  • diagonal planes are planes that are inclined with respect to a horizontal plane and, in the present case, run parallel to the conveying direction.
  • the diagonal planes run opposite each other from an upper edge in the housing to one of the upper inner edge transversely to the conveying direction opposite lower inner edge of the housing.
  • the upper and lower inner edges are determined by the fact that a treatment room along the inner surfaces of the Gezzau ses Entirely comprehensive geometric treatment room auxiliary cuboid is formed that touches the inner surfaces of the housing in the manner of a regression plane.
  • the upper and lower inner edges of the housing then correspond to an upper and a lower inner edge of the geometric treatment room auxiliary cuboid.
  • the diagonal planes are understood to be a diagonal-tangential plane running parallel to the varying conveying directions and moving tangentially along the curved route .
  • the horizontal plane and the vertical plane can preferably each run through a center point of a geometric workpiece auxiliary cuboid, in which two opposite side surfaces run perpendicular to the conveying direction and in which each side surface has one touches the outermost point of the workpiece tangentially.
  • a workpiece auxiliary cuboid is a type of the workpiece enveloping the cuboid.
  • Such an arrangement of the inlet openings and the outlet openings is particularly well matched to the workpiece.
  • the gas system preferably has a distribution arrangement with which the gas can be distributed in several specific areas of the treatment room along and / or across the conveying path.
  • specific areas are understood to mean areas into which not inconsiderable proportions of the gas admitted into the treatment room reach and in which the gas distributed there fulfills a not insignificant technical function in relation to the workpiece.
  • Technical functions of the gas can be, for example, the entrainment of the treatment room atmosphere enriched with water vapor, solvents and / or process gases, the treatment of the workpiece, for example by applying or removing layers or the like.
  • the distribution arrangement preferably has at least one gas channel arranged in the treatment room, through which the gas flow can be guided before it is introduced into the treatment room.
  • a gas duct By means of a gas duct, it is possible, for example, to guide the gas flow into an area that is particularly advantageous for the gas flow to be generated in the treatment room and / or for workpiece treatment before it is let into the treatment room.
  • a special geometry of the treatment room and / or the housing, in particular a treatment tunnel or the like can also be taken into account.
  • the distribution arrangement has at least one distribution section, on which at least some inlet openings of the gas system are formed, which runs parallel to and in particular in one of the diagonal planes or touches the same.
  • the distribution section can be designed, for example, as a wall of the gas duct that faces the treatment room. Because the distribution section runs parallel to a diagonal plane, the gas flow can be better adapted to the workpiece contour compared to a horizontal or vertical course of the distribution section.
  • a flow deflection system with at least one flow deflection device Direction is present, which is arranged such that it deflects at least a partial gas flow in the treatment room.
  • the partial gas flow can be deflected, for example, in the direction of a specific treatment area of the workpiece.
  • the partial gas flow can additionally or alternatively also be deflected in the direction of the outlet openings, whereby the atmosphere exchange capacity of the gas system as a whole can be improved, i.e. with which, in particular, gas enriched with water vapor, solvents and / or process gases is relatively quickly discharged from the treatment room can be.
  • the flow deflection device can advantageously comprise one or more passive flow guide elements and / or one or more ventilation devices, in particular one or more fans.
  • the position and / or the orientation of the flow deflection device in particular the position and / or the orientation of one or more flow guiding elements and / or one or more ventilation devices and / or the flow deflection direction specified by a flow guiding element can be adapted to the position and / or the orientation and / or the geometry of the respective workpiece along the conveyor line is.
  • the position is understood to mean a basic position in space
  • the orientation is understood to mean an inclination or orientation in relation to the horizontal plane and / or the vertical plane.
  • the position of the respective workpiece along the conveyor line corresponds to the position of the center of the respective workpiece auxiliary cuboid.
  • a complex sensor system for example for the detection of certain complex workpiece sections, for which given If necessary, special learning algorithms are required, can be dispensed with.
  • the treatment system thus also causes lower costs overall during operation and in production. Since the exact workpiece geometry and the exact dimensions of the workpiece are usually known based on 3D models that are created before production and thus also before the workpieces are treated, knowledge of the center M of the workpiece auxiliary cuboid is sufficient to determine the position of the workpiece.
  • the detection devices being in particular imaging devices, in particular Cameras with imaging optics and a photodetector, for example a CCD or CMOS sensor, act.
  • the imaging devices preferably each have imaging optics that preferably have an image angle between 70 ° and 85 °, between 80 ° and 95 °, in order to be able to image a comparatively large area of the treatment room 90 ° and 105 ° or particularly preferably has an angle of view in a range above 105 °.
  • the aforementioned object is achieved by a treatment method for treating workpieces in a treatment plant, in which the gas is let into the treatment room and let out of the treatment room as follows:
  • the treatment system is preferably a treatment system with one, several or all of the features explained above for the treatment system.
  • FIGS. 1 to 5 cross-sections of various exemplary embodiments of a treatment system according to the invention, in each of which different arrangements of inlet openings and outlet openings in a treatment cabin and possibly different flow deflectors are illustrated;
  • Figures 6 to 8 are longitudinal sections of the embodiment shown in Figure 5 along the cutting lines A-A, B-B and C-C, in which flow areas are shown along a conveying path, in which different gas flows are generated;
  • FIGS. 9 to 11 are perspective views of the treatment system, in which room sectors in relation to a housing of the treatment cabin, Space quadrants in relation to a workpiece and sides of the workpiece are illustrated in perspective;
  • FIG. 12 shows a plan view of the treatment plant, in which a transverse conveyor section in the treatment cabin and the associated conveyor system are illustrated;
  • FIGS. 13 and 14 show two perspective views of two exemplary embodiments of transport trolleys with a workpiece each carried by them.
  • FIGS. 1 to 12 schematically illustrate a treatment system, denoted overall by 10, for treating workpieces 12.
  • the workpieces 12 are illustrated by way of example as vehicle bodies 14. In the following, workpieces 12 will only be mentioned in relation to this.
  • the treatment system 10 comprises a treatment cabin 16 with a housing 18 in which a treatment room 20 is located.
  • a treatment step for example a coating step, a drying step or a mechanical work step, can be carried out in the treatment cabin 16.
  • the treatment cabin 16 is in all the exemplary embodiments only exemplarily as a drying chamber 22 Darge provides; however, this is the preferred embodiment. In the following, however, the description of the drying chamber 22 will mainly refer to a treatment cabin 16; Unless explicitly stated otherwise, the statements made in general about the treatment cabin 16 also apply to the drying chamber 22.
  • a drying chamber 22 is generally understood to mean any type of treatment cabin 16 in which workpieces 12 can be dried, for example by convection and / or by radiation.
  • the workpieces 12 to be dried are each essentially supplied with a heated gas, by means of which the workpieces 12 are heated.
  • the heating of the workpieces 12 vaporizes liquid components that are freshly applied to the workpieces 12 applied surface layer are located in a drying chamber atmosphere of the drying chamber 22.
  • the gas flow generated by the supply of the gas can then entrain these aerosolically and / or gaseous portions of the surface layer present in the drying chamber atmosphere and carry them away from the drying chamber 22.
  • Radiation drying basically follows a similar principle to convection drying with the difference that the workpieces 12 are not heated by a heated gas flow, but by thermal radiation generated by one or more heat emitters.
  • dehumidifying methods such as adsorption dehumidification, Peltier dehumidification and / or condensation dehumidification can be used in this subsequent step of dehumidifying the drying chamber atmosphere.
  • the invention is generally explained below using the example of a treatment cabin 16 in which the treatment room 20 is designed as a treatment tunnel 24, in the case of the drying chamber 22 as a drying tunnel 26.
  • the housing 18 of the treatment booth 16 comprises two tunnel walls in the form of side walls 28 and two further tunnel walls in the form of a ceiling 30 and a floor 32.
  • the workpieces 12 are conveyed with a conveying system 34 along a conveying path S and in a conveying direction R.
  • the conveying direction R points out of the plane of the drawing.
  • the workpieces 12 are conveyed through the treatment room 20, i.e. here through the treatment tunnel 24 of the treatment booth 16, and also outside the treatment booth 16, for example to a further treatment booth 16.
  • the workpieces 12 are conveyed through the treatment cabin 16 as they pass through.
  • This accordingly has an input 36 and an output 38 at one end, which are only shown in FIG.
  • the input 36 and the output 38 can be designed as a lock, as is known per se.
  • the treatment cabin 16 can also be used as Batch system designed and possibly only have a single access, which also acts as an exit, ie via which the workpieces 12 are promoted into the treatment room 20 and after the respective treatment step also out of this ge again. This single access can also be designed as a lock.
  • the conveyor system 34 comprises several transport trolleys 40 which, for example, as shown in FIGS. 12 and 13, can be designed as rail-mounted transport trolleys 42 or, as shown in FIG. In the exemplary embodiments shown in FIGS. 1 to 11, however, the transport trolleys 40 are designed as passive skids 46, which can be moved by means of a roller conveyor, a chain conveyor device or a plate conveyor device, which is only indicated in the figures and not specifically provided with a reference number. Comparatively simple designs of the transport trolleys 40, for example as a carrier or pushing element, which attach directly to the workpiece 12 to be conveyed, are also possible.
  • the rail-mounted transport carriages 42 each roll on a conveyor rail 48.
  • the free-moving trolleys 44 are floor-bound and roll on a traveling floor that is not provided with a reference symbol.
  • Conveyor systems with free-moving transport vehicles 44 are known to the person skilled in the art under the term "driverless transport system" (AGV) higher-level central control can be driven and steered.
  • AGV driverless transport system
  • the on-board control device and the superordinate central control are not shown here for the sake of simplicity.
  • the trolleys 40 shown in the figures each comprise at least one fastening device 50, to which a workpiece 12 can be fastened and conveyed through the treatment room 20 of the treatment booth 16.
  • a support device 52 couples the fastening transmission device 50 with the roller conveyor, the chain conveyor device or the plate conveyor device.
  • a connecting device 54 couples the fastening device 50 to a chassis 56 of the transport trolley 42, 44.
  • the workpieces 12 are conveyed in the conveying direction R along the conveying route S through the treatment room 20 in such a way that a main axis AH of the respective workpiece 12, embodied as a longitudinal axis, runs along a transverse conveying section SQ of the conveying route S transversely to the conveying direction R.
  • This alignment of the workpieces 12 transversely to the conveying direction R in the transverse conveying section SQ has the effect, on the one hand, that these are more easily accessible for the one or more treatment steps to be carried out in the treatment room 20 and, on the other hand, that more workpieces 12 pass through the treatment room 20 at the same time who can be promoted as workpieces whose main axis AH is parallel to the direction of conveyance R.
  • the main axis AH of the workpieces 12 can also migrate according to a varying conveying direction Rv.
  • the alignment of the transport carriages 40, which they have when they enter the curve section is essentially retained up to or after their exit from the curve section.
  • the alignment of the main axis AH of the transport trolleys 40 is then only adapted to the changed conveying direction R after they have left the curve section.
  • the treatment system 10 has a gas system 58 which is set up to generate a gas flow 64 in the treatment room 20 which has a plurality of partial gas flows 64.1, 64.2, 64.3, of which only three are provided with a reference number.
  • the gas system 58 has a plurality of inlet openings 60 for admitting the gas into the treatment room 20 and a plurality of outlet openings 62 for discharging the gas out of the treatment room 20.
  • the treatment room 20 can be geometrically divided into space quadrants 68, which extend parallel to the conveying direction R and, when viewed against the conveying direction R from the top left, clockwise with 68.1, 68.2, 68.3 and 68.4 are designated.
  • the space quadrants 68 are each formed by a vertical plane 72, a horizontal plane 74 and a housing section 76a of the housing 18 of the treatment cubicle 16 that is separately associated with the respective space quadrant 68.
  • the treatment room can also be geometrically divided into four room sectors 70 which, when viewed counter to the conveying direction R from above, are designated in a clockwise direction with 70.1, 70.2, 70.3 and 70.4.
  • the spatial sectors 70 are each defined by a first diagonal plane 86, a second diagonal plane 88, and a further housing section 76b belonging to the respective spatial sector 70.
  • the two diagonal planes 86 and 88 run parallel to the conveying direction R.
  • the inlet and outlet openings 60, 62 in all the illustrated exemplary embodiments are on one and the same side 66 of the workpiece 12 and exclusively in two adjacent room squares 68 of the treatment room 20, namely, in the present case the space quadrants 68.1 and 68.2, and furthermore in one and the same spatial sector 70 of the treatment room 20, namely in the present case the spatial sector 70.1.
  • the inlet openings 60 and the outlet openings 62 are designed only in accordance with individual options or different combinations of these options, i.e. one side and / or two space quadrants and / or one space sector.
  • the inlet and outlet openings 60, 62 can only be in the space quadrants 68.1 and 68.4 and possibly in the space sector 70.4, only in the space quadrants 68.2 and 68.3 and, if applicable, in the space sector 70.2 or exclusively in the space quadrants 68.3 and 68.4 and thereby ge optionally be arranged in the space sector 70.3.
  • the arrangement of the inlet openings 60 and the outlet openings 62 reference will only be made to a single workpiece 12. It should be clear, however, that a plurality of workpieces 12 are also always meant and that the conveyor system 34 is usually in the conveying mode.
  • a geometric work piece auxiliary cuboid 78 serving as a reference system is formed around the work piece 12.
  • Two opposite side surfaces 80 of the workpiece auxiliary cuboid 78 run perpendicular to the conveying direction R, that is accordingly also parallel to the main axis AH of the workpiece 12 in the transverse conveying section SQ, and in the present case therefore also vertically.
  • the other four side surfaces of the workpiece auxiliary cuboid 78 are not specifically provided with a reference number.
  • Each Be ten configuration the workpiece auxiliary cuboid 78 touches a respective outermost point 82 of the workpiece 12 tangentially.
  • the workpiece 12 could correspondingly approximately be represented by a sphere (not shown), if the width and length of the workpiece 12 are essentially the same, or by an umellipsoid 84, if the width and length of the workpiece 12 are different from one another.
  • Umellipsoid 84 is indicated by way of illustration in the cross section of FIG.
  • the planes 72, 74 each run through a center M of the workpiece auxiliary cuboid 78.
  • the space quadrants 68 consequently do not have to be exclusively dependent on the geometry of the treatment room 20, since the reference point for the formation of the same can accordingly be the workpiece 12 itself . This is particularly advantageous because the position and / or the orientation of the inlet openings 60 and the outlet openings 62 can thus be adapted more precisely to the dimensions of the workpiece 12.
  • the spatial sectors 70 formed by the diagonal planes 86, 88 together with the housing 18 are defined with respect to the housing 18. So ver The diagonal planes 86, 88 run here in opposite directions from an upper inner edge 90 of the housing 18 to an opposite lower inner edge 92 of the housing 18.
  • the workpiece-related arrangement of the inlet openings 60 and the outlet openings 62 in two adjacent space quadrants 68 is advantageous, so there are also advantages in the present housing-related arrangement in one and the same space sector 70. It can namely also be desired that an essentially constant reference point for the arrangement of the openings 60, 62 is present. This can make the planning and construction of the treatment system 10 comparatively easier and consequently also reduce the costs for this as a result.
  • the inlet openings 60 and the outlet openings 62 in all of the present exemplary embodiments are arranged on one and the same side 66 of the workpiece 12 perpendicular to the conveying direction R.
  • the sides 66 of the workpiece 12 are each partial spatial areas of the treatment room 20, which can be viewed from the respective viewing directions, ie "from the front”, “from the rear”, “from the left”, “from the right”, “from above” and “ from below ", viewed sections of an upper surface of the workpiece 12 adjoin.
  • the viewing directions are defined with regard to the conveying direction R and / or the later use of the workpiece 12.
  • a geometric workpiece auxiliary cuboid 78 can be formed.
  • One side 66 of the workpiece 12 is then the partial spatial area enclosed by a vertical plane 72 or horizontal plane 74 applied to the respective side surface 80 of the workpiece auxiliary cuboid 78 and the housing section 76 which is intersected by the respective plane 72, 74 is.
  • the partial spatial areas beyond the workpiece auxiliary cuboid 78 each describe a side 66 of the workpiece 12 and the inlet openings 60 and the outlet openings 62 are arranged there, it is ensured that no components can collide with the workpiece 12 if the workpieces 12 are in the Treatment tunnel 24 are moved.
  • the creation of the planes 72, 74 results in overlapping areas 94.
  • the overlapping areas 94 in room corners 96 of the treatment room 20 arranged at. If the basic shape of the treatment room 20 differs from this, the overlapping areas 94 are in any case arranged in the outer areas of the treatment room 20.
  • the overlapping areas 94 are two sides 66 of the workpiece 12 zugeord net.
  • the upper overlap area 94 on the left in relation to the plane of the drawing is thus, for example, both the side 66 on the left in the plane of the drawing (in the present case starting from the workpiece 12 "front") and the upper side 66 in the plane of the drawing (in the present case starting from the workpiece 12 "top”) ) assigned. This also applies correspondingly to the other overlapping areas 94.
  • inlet openings 60 or outlet openings 62 are arranged in this area, these are arranged both in front of and above workpiece 12, to stay with the example.
  • the common properties are always used to define whether the openings 60, 62 are on one and the same side 66 of the workpiece 12 essential.
  • the two upper overlapping areas 94 which are located both above and in front of and also behind the workpiece 12, are thus regarded as being arranged exclusively above the workpiece 12.
  • the gas system 58 in all of the illustrated exemplary embodiments of the treatment system 10 has a distribution arrangement 98 with which the gas can be distributed in several specific areas of the treatment room 10 along and across the conveying path S.
  • the gas flow 64 can for example be guided outside the housing 18 and the treatment room 20 in gas channels provided for this purpose and passed through the housing 18 into the treatment room 20 at the appropriate points.
  • the distribution arrangement 98 has a gas channel 100 which is arranged in the treatment room 20 and through which the gas flow 64 can be guided before it is introduced into the treatment room 20.
  • the gas flow 64 can thus be passively heated before its inlet into the treatment room 20, for example by the drying chamber atmosphere, whereby the temperature prevailing in the treatment room 20 is used in an energy-efficient manner.
  • the gas channel 100 extends both along and transversely to the conveying path S, but in the case of exemplary embodiments that are not specifically provided, it can also extend only along or only transversely to this.
  • the distribution arrangement 98 has a plurality of distribution sections 102 which run parallel to one of the diagonal planes 86, 88.
  • the gas flow 64 can be adapted well to the contour of the workpiece 12.
  • the exemplary embodiments of the treatment system 10 shown in FIGS. 2 to 5 have a flow deflection system 104 with a plurality of flow deflection devices 106, which are arranged in such a way that they each deflect at least one partial gas flow 64.1, 64.2, 64.3 of the gas flow 64 within the treatment room 20.
  • the flow deflecting device 106 comprises a ventilation device 108, which is designed here as a fan 110.
  • the blower 110 for its part generates a blower gas flow (not specifically shown) in the treatment room 20 and actively diverts the atmosphere in the treatment room 20 in a main flow direction predetermined by the blower gas flow.
  • the flow is deflected in this way onto the workpiece 12, which can thereby be acted upon in a targeted manner.
  • the gas flow 64 can be deflected in such a way that an inner surface of the workpiece 12 that is not provided with a reference symbol is acted upon by this, such as, for example, an inner surface of a comparatively massive section of the workpiece 12, which requires a relatively long time to cool down and to dry accordingly.
  • a massive section is, for example, a rocker arm 111.
  • the gas flow 64 can, if necessary, be diverted step by step in the direction of the outlet openings 62 in a simple manner.
  • the flow deflection device 106 comprises a plurality of flow guide elements 112, which are designed here as flow guide plates 114. These are fastened to the side walls 28 of the housing 18 by fastening means 116 in such a way that they passively oppose a flow resistance to the partial gas flows 64.1, 64.2, 64.3 impinging on these flow guide plates 114. As a result, the partial gas flows are essentially deflected in a deflection direction predetermined by the flow guide plates 114. In this way, too, the workpiece 12 can be effectively acted upon by the gas flow 64. As already explained with regard to the blowers 110 and as is also shown in FIGS.
  • the housing 18 can also be used for the targeted deflection of the gas flow 64 or of partial gas flows 64.1, 64.2, 64.3. This is illustrated, for example, in FIG. 5, in which the housing 18 of the illustrated embodiment of the treatment system 10 performs such a function in the lower left corner with respect to the plane of the drawing and can be understood as part of the flow deflection device 106.
  • the flow deflectors 106 can be movable in such a way that their position and orientation as well as the flow deflection direction specified by the flow guide element 112 can be adapted to the position, the orientation and the geometry of the workpiece 12.
  • Such embodiments are particularly flexible with regard to a given if variable guidance of the conveyor line S is present, various treatment steps that require movement of the workpiece 12 and different geometries of the workpieces 12.
  • the workpiece auxiliary cuboid 78 can be created in a simple manner, for example, by means of the detection of outer edges of the workpiece 12 by detection devices arranged within the treatment room 20, which can in particular be designed as imaging devices with a photodetector. For this purpose, it is sufficient to recognize one of the corresponding side 66 of the workpiece 12 facing outermost edge of the workpiece 12; In the case of the workpiece auxiliary cuboid 78, this corresponds to six edges of the workpiece 12 that are to be recognized.
  • FIGS. 6, 7 and 8 show longitudinal sections of the treatment system 10 along the section lines AA, BB and CC in FIG. 5. As can be seen from FIG mutually different gas flows 64 are generated. As a result, an improved flow through the entire treatment room 20 is brought about in comparison with essentially uniform gas flows 64 along the conveying path S.
  • the conveyor system 34 is embodied there by way of example as a conveyor system 34 with a multiplicity of rail-mounted transport trolleys 42.
  • a second conveying rail 120 running parallel to the first conveying rail 48 is provided along the conveying path S in addition to a first conveying rail 48.
  • Each workpiece 12 is conveyed with two rail-mounted transport carriages 42 along the conveying route S and in the conveying direction R.
  • a switch device 122 In the vicinity of the entrance 36 of the treatment cabin 16 there is a switch device 122, by means of which one of the two rail-mounted transport carriages 42, which convey a workpiece 12, can be transferred to the second conveyor rail 120.
  • the second conveyor rail 120 has a curved section 124 which is connected to the switch device 122. After the curved section 124, the second conveyor rail 120 runs in a linear section 126 parallel to the first conveyor rail.
  • the connecting device 54 of the rail-mounted trolley 42 has a rotatable connection, not shown, to the fastening device 50, which is locked can, if the workpiece 12 assumes certain orientations, in the present case, by way of example, a longitudinal conveying orientation or a transverse conveying orientation.
  • the workpiece 12 can be rotated transversely to the conveying direction R solely by moving a rail-bound transport carriage 42 leading in the conveying direction R over the curved section 124 of the second conveyor rail 120 onto the linear section 126 running parallel to the first conveyor rail 48 .
  • the main axis AH of the workpiece 12 always runs parallel to a geometric straight line 130 running through fastening points 128 of the fastening devices 50 of the two rail-mounted transport carriages 42.
  • a switch device 122 and a curved section 124 of the second conveyor rail 120 are also present, whereby the two rail-mounted transport carriages 42 can be moved back onto the first conveyor rail 48 there.
  • the curve section 124 rotates the workpiece 12 in such a way that its main axis AH runs parallel to the conveying direction R again after it has been passed through.
  • curved sections 124 of the conveyor rails 48, 120 that run parallel to one another are also provided.
  • the main axis AH then always runs perpendicular to a varying conveying direction Rv, which in turn always runs tangential to the conveying path S.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Drying Of Solid Materials (AREA)
  • Tunnel Furnaces (AREA)

Abstract

L'invention concerne une installation destinée à traiter, en particulier à sécher, des pièces (12), en particulier des carrosseries de véhicules (14). L'installation de traitement (10) comprend une cabine de traitement (16) qui présente une enceinte (18) et un espace de traitement (20) situé dans l'enceinte (18). L'installation de traitement (10) comprend en outre un système de transport (35), au moyen duquel les pièces (12) peuvent être transportées le long d'une voie de transport (S) et dans une direction de transport (R) jusque dans l'espace de traitement (20) et/ou à travers ce dernier, de sorte qu'un axe principal (AH) d'une pièce (12) s'étend le long d'au moins une section de transport transversale (SQ) de la voie de transport (S) transversalement à la direction de transport (R). Un système de gaz (58) est également présent, au moyen duquel un écoulement gazeux (64) peut être généré dans l'espace de traitement (20), et qui comprend plusieurs orifices d'entrée (60) destinés à faire entrer un gaz dans l'espace de traitement et plusieurs orifices de sortie (62) destinés à évacuer le gaz hors de l'espace de traitement (20). Dans la section de transport transversale (SQ), les orifices d'entrée (60) et les orifices de sortie (62) se situent sur un seul et même côté (66) de la pièce (12), perpendiculairement à la direction de transport (R) et/ou exclusivement dans deux quadrants spatiaux (68) adjacents, de l'espace de traitement (20), qui s'étendent parallèlement à la direction de transport (R) et sont définis par un plan vertical (72), un plan horizontal (74) et une partie d'enceinte (76a) de l'enceinte (18), et/ou dans un seul et même secteur spatial (70) de l'espace de traitement (20), qui est défini par un premier plan diagonal (86), un second plan diagonal (88) et une partie d'enceinte (76b) de l'enceinte (18), le premier et le second plan diagonal (86, 88) s'étendant parallèlement à la direction de transport (R).
PCT/EP2021/055180 2020-03-04 2021-03-02 Installation de traitement et procédé de traitement pour traiter des pièces WO2021175851A1 (fr)

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EP21710414.0A EP4115131A1 (fr) 2020-03-04 2021-03-02 Installation de traitement et procédé de traitement pour traiter des pièces
CN202180019118.7A CN115427748A (zh) 2020-03-04 2021-03-02 用于处理工件的处理设施和处理方法

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DE102020105767.9A DE102020105767A1 (de) 2020-03-04 2020-03-04 Behandlungsanlage und Behandlungsverfahren zum Behandeln von Werkstücken

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DE102021211018A1 (de) 2021-09-30 2023-03-30 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
CN114593584B (zh) * 2022-03-24 2023-08-08 浙江昕兴科技有限公司 一种汽车零部件烘干机

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JPS6196385A (ja) * 1984-10-16 1986-05-15 日産自動車株式会社 乾燥炉の換気方法
JPS6187573U (fr) * 1984-11-09 1986-06-07
US5245763A (en) * 1989-09-05 1993-09-21 Abb Flakt A.B. Method and apparatus for removing solvent vapors
JP2004101063A (ja) * 2002-09-09 2004-04-02 Trinity Ind Corp 乾燥炉
DE102009037444A1 (de) * 2008-08-17 2010-05-12 GM Global Technology Operations, Inc., Detroit Transversaler Ofen und Verfahren zum Brennen von Werkstücken
DE102015017279B3 (de) 2015-07-31 2019-04-04 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102015017280B3 (de) 2015-07-31 2019-04-04 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
US20190316841A1 (en) * 2016-07-18 2019-10-17 Geico S.P.A. Drying plants for painted objects

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DE102008007662A1 (de) * 2008-02-06 2009-08-13 Robert Bosch Gmbh Vorrichtung und Verfahren zur Behandlung von Formteilen mittels energiereicher Elektronenstrahlen
US9970706B2 (en) * 2012-05-02 2018-05-15 Duerr Systems Ag System having a process chamber for workpieces
DE102015214706A1 (de) * 2015-07-31 2017-02-02 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken

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Publication number Priority date Publication date Assignee Title
US4255132A (en) * 1979-09-12 1981-03-10 Schweitzer Industrial Corp. Incinerator-heater system
JPS6196385A (ja) * 1984-10-16 1986-05-15 日産自動車株式会社 乾燥炉の換気方法
JPS6187573U (fr) * 1984-11-09 1986-06-07
US5245763A (en) * 1989-09-05 1993-09-21 Abb Flakt A.B. Method and apparatus for removing solvent vapors
JP2004101063A (ja) * 2002-09-09 2004-04-02 Trinity Ind Corp 乾燥炉
DE102009037444A1 (de) * 2008-08-17 2010-05-12 GM Global Technology Operations, Inc., Detroit Transversaler Ofen und Verfahren zum Brennen von Werkstücken
DE102015017279B3 (de) 2015-07-31 2019-04-04 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
DE102015017280B3 (de) 2015-07-31 2019-04-04 Dürr Systems Ag Behandlungsanlage und Verfahren zum Behandeln von Werkstücken
US20190316841A1 (en) * 2016-07-18 2019-10-17 Geico S.P.A. Drying plants for painted objects

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EP4115131A1 (fr) 2023-01-11
DE102020105767A1 (de) 2021-09-09

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