EP2606983A2 - Installation destinée au revêtement dýobjets - Google Patents

Installation destinée au revêtement dýobjets Download PDF

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Publication number
EP2606983A2
EP2606983A2 EP12008277.1A EP12008277A EP2606983A2 EP 2606983 A2 EP2606983 A2 EP 2606983A2 EP 12008277 A EP12008277 A EP 12008277A EP 2606983 A2 EP2606983 A2 EP 2606983A2
Authority
EP
European Patent Office
Prior art keywords
flow
cabin
cabin air
air
installation according
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.)
Granted
Application number
EP12008277.1A
Other languages
German (de)
English (en)
Other versions
EP2606983A3 (fr
EP2606983B1 (fr
Inventor
Werner Swoboda
Jürgen Röckle
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.)
Eisenmann SE
Original Assignee
Eisenmann SE
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 SE filed Critical Eisenmann SE
Publication of EP2606983A2 publication Critical patent/EP2606983A2/fr
Publication of EP2606983A3 publication Critical patent/EP2606983A3/fr
Application granted granted Critical
Publication of EP2606983B1 publication Critical patent/EP2606983B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/43—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by filtering the air charged with excess material
    • 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
    • B05B16/60—Ventilation arrangements specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/0486—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet the spray jet being generated by a rotary deflector rotated by liquid discharged onto it in a direction substantially parallel its rotation axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B14/00—Arrangements for collecting, re-using or eliminating excess spraying material
    • B05B14/40—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths
    • B05B14/42—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths using electrostatic means

Definitions

  • deposition systems have been established that efficiently filter overspray from the cabin air, but in the course of operation, the air passage is locally different inhibit, as local soiling or blockages may occur.
  • Such systems are, for example, filter systems or electrostatic paint separators.
  • the flow rate of the cabin air can then be reduced again with a greater distance from the vehicle body, since there is less overspray. If then in the area of the cabin walls again greater flow velocities, soiling on the cabin wall can be prevented or at least kept low.
  • the flow profile of the cabin air flow is therefore not predetermined by the structural conditions according to the invention, but can be selectively changed and adjusted by the flow device. In this way, both an inhomogeneous flow profile can be homogenized, so that the cabin air flows over the surface of the cabin with substantially the same flow rate, as well as an intentionally generated an inhomogeneous flow profile, as described above.
  • the flow device is set up such that at least the flow velocity of a single stream can be influenced in the cabin air flow.
  • the cabin air flow can be formed as a whole from a combination of individual streams, which need not all have the same cross-section.
  • the above-mentioned reduction in the flow rate of the cabin air in the roof area of a vehicle body can be obtained by generating a single flow of rectangular cross-section over the roof of the vehicle body, which is surrounded by a rectangular ring-shaped single stream.
  • the flow device then ensures that the flow velocity of the average, rectangular individual flow is smaller than that of the surrounding individual flow.
  • the flow device is set up such that the flow velocities of a plurality of individual streams can be influenced in the cabin air flow.
  • the flow device comprises a flow unit for generating each individual flow.
  • a flow unit may be formed by a fan (52).
  • the fan is arranged so that cabin air is blown through the fan into the treatment cabin.
  • the fan may also be arranged so that this sucks cabin air from the treatment cabin.
  • a flow unit may be formed by a flow flap.
  • the flow flap is then preferably arranged so that cabin air enters the treatment cabin via the flow flap.
  • the flow flap is arranged so that cabin air exits via the flow flap from the treatment cabin.
  • FIG. 1 is generally designated 2 a surface treatment plant in the form of a paint shop, in which vehicle bodies 4 are painted after they have been cleaned and degreased in the paint shop 2 upstream, not specifically shown pretreatment stations, for example.
  • the painting installation 2 comprises a painting booth 6 which rests in a manner known per se on a steel structure which is not specially provided with a reference numeral.
  • the spray booth 6 comprises an overhead painting tunnel 8, which is bounded by vertical side walls 10 and a horizontal cabin ceiling 12, but is open at the end faces.
  • the paint tunnel 8 is open at the bottom in such a way that overspray laden cabin exhaust air can flow down.
  • the cabin ceiling 12 forms the lower boundary of an air supply space 14, which is part of an air system not provided with a reference numeral, by means of which a cabin air flow can be generated through the coating booth, which receives and discharges resulting overspray particles of the coating material.
  • This cabin air flow forms an airfoil in the painting tunnel 8.
  • a flow device 16 is arranged, by means of which the flow profile of the cabin air flow can be influenced; This will be discussed in detail below.
  • the flow device 16 is integrated here in the cabin ceiling 12.
  • a steel frame 20 which carries a known per se conveyor system 22, which will not be discussed here.
  • this vehicle body 4 to be painted can be transported from the input side of the painting tunnel 8 to its output side.
  • application devices in the form of multi-axis application robots 24, as they are known per se and which are shown here only schematically.
  • the application robot 24 the vehicle bodies 4 can be coated with lacquer.
  • the lower opening 18 of the painting tunnel 8 is covered by a walk-on grating 26. Below the grid 26 there is a plant area 28 in which the overspray particles carried by the cabin air are separated from the cabin air.
  • the plant area 28 comprises a flow area 30, into which the cabin air laden with overspray first flows and which, for this purpose, is open towards the paint booth 6, but is delimited laterally by air baffles 32.
  • the air baffles 32 are arranged so that a collecting duct 34 is formed, which tapers towards the bottom. This collection channel 34 opens into an air duct 36 into which the cabin air laden with overspray particles initially flows in total vertically downwards.
  • the air duct 36 then diverts the cabin air by 90 ° into the horizontal and comprises a plurality of horizontal outlet flow outlets 38, which are arranged one behind the other in the longitudinal direction of the paint booth 6.
  • Each flow outlet 38 leads to a respective filter module 40, in which the cabin air flows in the horizontal direction.
  • Each filter module 40 forms a separation unit, with which a deposition device, generally designated 42, operates, which is present in a separation area 44 of the painting booth 6, which is arranged below the flow area 30.
  • Each filter module 40 is releasably connected as an individual module with the air duct 36.
  • the cabin air is deflected twice in each filter module 40 by 90 ° and, after flowing through the filter module 40 largely freed from overspray particles in an intermediate channel 46, via which it passes into a collecting flow channel 48.
  • the cabin air is supplied via the collecting flow channel 48 to a further conditioning and conditioning and then passed in a not shown here circuit back into the air supply chamber 14, from which it flows back into the paint tunnel 8 from above.
  • separating device 42 which operates with flow-through filters
  • electrostatically functioning separating device which is known per se, in which the paint particles are ionized by spray electrodes and deposited on separation surfaces which For this purpose are connected to a high voltage source.
  • the flow profile of the cabin air flow can be influenced.
  • this influence can mean that an inhomogeneous flow profile, in which the cabin air flows in different regions of the spray booth 6 at different flow velocities, is homogenized such that the cabin air flows through the paint tunnel 8 in all areas of the spray booth 6 at substantially the same flow rate.
  • the airfoil of the cabin air is then characterized by locally equal air sinking speeds.
  • a flow profile that is homogeneous in this sense can be influenced in such a way that the cabin air flows through the painting tunnel 8 at locally different flow velocities.
  • the airfoil of the cabin air is thus characterized by locally different air sink rates.
  • the flow device 16 comprises a plurality of flow units 50. These are when in the FIGS. 1 and 2 shown embodiment, designed as fans 52 which promote air from the air supply chamber 14 in the paint tunnel 8. In the FIGS. 1 to 3 only some of the fans 52 carry a reference numeral.
  • the fans 52 are arranged in a flow matrix 54, which extends in the longitudinal and transverse direction of the painting booth 6 and covers the cabin ceiling 12.
  • Each fan generates its own individual stream 56, as it is in FIG. 3 is illustrated.
  • each fan 52 be controlled separately, so that each fan 52 can generate its own individual stream 56 at a predetermined flow rate, as in FIG. 3 illustrated by different long flow images.
  • a flow profile 58 can be formed, wherein only in FIG. 3 an example of a possible flow profile is provided with a reference numeral.
  • the number of individual streams 56 that can be generated, or the individual streams whose flow velocity can be influenced, and the flow area which they cover in each case depend on the number, arrangement and dimensioning of the fans 52 in the cabin ceiling 12.
  • Each individual single-ended flow 56 has a medium flow cross-section. While all fans 52 are dimensioned the same in the present embodiment, different sized fans 52 may be present, so that different individual flows 56 may also have different average flow cross sections.
  • a flow sensor device 60 is present, which in FIG. 3 for the sake of clarity is not shown.
  • This includes a plurality of flow sensors 62, which can detect the respective flow velocity of one of the individual streams 56.
  • a flow sensor 62 is arranged in the paint tunnel 8 below each flow unit 50, in the embodiment of the FIGS. 1 and 2 that is, below each fan 52.
  • the flow sensors 62 are thus arranged in a sensor matrix 64 which corresponds to the flow matrix 54 formed by the fans 52.
  • the flow sensors 62 are supported by a support structure 66, which in the present embodiment as a permeable for the cabin air grid is formed, at whose grid intersections in each case a flow sensor 62 is attached. Also, fewer or more flow sensors 62 may be employed than flow units 50 are present.
  • the resulting flow profile 58 can be monitored and adjusted over the entire surface of the spray booth 6 by a control unit not specifically shown here. If the actual flow rate of a single stream 56, which is generated by a specific fan 52, deviates from a desired flow rate of this single stream 56, the associated fan 52 is driven accordingly until the generated individual stream 56 corresponds to the profile specifications.
  • the sensor device 60 may also comprise an image acquisition system, with the help of which the paint cloud present in the paint tunnel 8 can be detected and evaluated with regard to local flow velocities of the cabin air.
  • an image acquisition system with the help of which the paint cloud present in the paint tunnel 8 can be detected and evaluated with regard to local flow velocities of the cabin air.
  • a spraying device with which a test mist can be generated in the painting tunnel 8 in order to generate a test pattern that can be evaluated by the image acquisition system.
  • the sensor device 60 can also operate via a partial pressure measurement.
  • the pressures are measured before and after the flow units 50, from which then a flow profile can be derived.
  • one of the application robots 24 is also equipped with a further flow sensor 68 which is mounted close to the delivery end of the robot arm is.
  • this flow sensor 68 the flow velocity of the cabin air can be detected at the place of application and compared with the target specifications.
  • ventilators 52 can be actuated differently in order to optimize the flow profile 58.
  • FIG. 3 70 denotes a central main portion of the painting tunnel 8 which extends in the longitudinal direction thereof and in which the vehicle bodies 4 are conveyed through the painting tunnel 8.
  • the main area 70 is flanked on the right and left by secondary areas 72 in which the application robots 24 are located. Usually, the highest amount of overspray occurs in such subregions 72.
  • a flow profile 58 which is effective in this case can be designed so that the individual streams 56 which flow through the secondary regions 72 of the coating tunnel 8 are produced at a higher flow rate than the individual streams 56 which flow through the main region 70 of the coating tunnel 8.
  • This flow profile 58 can, for example, be set finer by the flow velocities of the individual streams 56 impinging there being higher in regions of vertical side walls or side regions of the vehicle body 4, but above the vehicle body 4 throttling the flow velocity of the cabin air.
  • the flow profile 58 can be dynamically changed and adjusted in the longitudinal direction of the painting tunnel 8, while the vehicle bodies 4 are conveyed through the painting tunnel and thereby coated.
  • a profile pattern of the airfoil 58 may be carried along with a moving vehicle body 14 so that it is largely always enveloped by the same airfoil 58 as it passes through the paint tunnel 8.
  • the vertical end walls or front areas of vehicle bodies 4 pointing in the longitudinal direction of the painting tunnel 8 can also be taken into account by increasing the flow velocity of individual streams 56 impinging there in relation to other individual streams 56. Individual streams 56 can then migrate in the longitudinal direction of the painting tunnel 8 with the vehicle body 4.
  • the power of fans 52 is increased when the front side of a vehicle body 4 in the single stream 56 of this fan 52 succeeded, and the power of fans 52 is throttled again when the end face of a vehicle body 4 is moved out of the single stream 56 of this fan 52 again ,
  • FIG. 4 is shown as a second embodiment, a paint shop 2 ', in which components already described above bear the same reference numerals.
  • the flow sensor device 60 is also not shown there for the sake of clarity.
  • the flow units 50 are formed in this embodiment as flow flaps 74, which are arranged in the flow matrix 54 and over which the flow rates of the individual streams 56 can be adjusted depending on the released by the flow flaps 74 passage cross section.
  • the flow flaps 74 only a few are provided with a reference numeral.
  • the respective position of the flow flaps 74 can be adjusted for example by hand. Alternatively, you can this can also be done by motor, for which purpose each control flap 74 or groups of a plurality of flow flaps 74 is respectively coupled to a corresponding actuator or are. Alternatively, a robot can be provided in the paint tunnel 8 for adjusting the flow flaps 74; This task can also be performed by one or both of the application robot 24, which are equipped for this purpose with a corresponding tool.
  • the flow device 16 is arranged in the region of the cabin ceiling 12.
  • the fans 52 are arranged so that cabin air is blown into the painting booth 6 via the fans 52.
  • the fans may also be arranged below the cabin ceiling 12, which may then be formed, for example, as a filter cover.
  • the flow flaps 74 these are, again in general terms, arranged so that cabin air enters the paint booth 6 via the flow flaps.
  • the respective flow device 16 may be provided elsewhere.
  • the flow device can also be arranged in the region of the lower opening 18 of the painting tunnel 8.
  • fans 52 these are then generally arranged so that they suck cabin air from the spray booth 6.
  • the cabin air coming out of the air supply room 14 has entered the painting tunnel 18 is sucked with different suction power from the painting tunnel 8 down, creating the desired flow profile is formed.
  • the flow flaps 74 are then arranged so that cabin air exits the treatment booth via the flow flaps 74.
  • the flow flaps 74 act in this case as a kind of air flaps, which restrict the outflow of the overspray laden cabin air down with different thickness.
  • flow units 50 can be provided in the area of the cabin ceiling 12 and the other part of the flow units 50 elsewhere.
  • adjacent flow units 50 can be arranged alternately in the area of the cabin ceiling 12 and elsewhere.
  • the flow device 16 may be arranged in the flow direction behind the separation device 42; This is also possible with an electrostatically operating separation device, as mentioned above.
  • a part of the flow units 50 of the flow device 16 may be formed by fans 52 and the other part by flow flaps 74.
  • fans 52 and / or flow flaps 74 can also be arranged in or on the side walls 10 of the spray booth 6, air spaces then being provided laterally next to the paint tunnel 8, via which the cabin air is conveyed to the paint tunnel 8. In this case, the cabin air enters, for example, obliquely down in the paint tunnel 8 a.

Landscapes

  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Coating Apparatus (AREA)
EP12008277.1A 2011-12-22 2012-12-12 Installation destinée au revêtement d'objets Not-in-force EP2606983B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102011122056A DE102011122056A1 (de) 2011-12-22 2011-12-22 Anlage zum Beschichten von Gegenständen

Publications (3)

Publication Number Publication Date
EP2606983A2 true EP2606983A2 (fr) 2013-06-26
EP2606983A3 EP2606983A3 (fr) 2015-08-19
EP2606983B1 EP2606983B1 (fr) 2017-08-30

Family

ID=47504571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12008277.1A Not-in-force EP2606983B1 (fr) 2011-12-22 2012-12-12 Installation destinée au revêtement d'objets

Country Status (2)

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EP (1) EP2606983B1 (fr)
DE (1) DE102011122056A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112604891A (zh) * 2019-10-04 2021-04-06 丰田自动车株式会社 涂覆间和涂覆方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3297766B1 (fr) 2015-05-22 2020-05-06 Dürr Systems AG Installation de revêtement et son procédé de fonctionnement
DE102015006666A1 (de) * 2015-05-22 2016-11-24 Dürr Systems Ag Beschichtungsanlage und zugehöriges Betriebsverfahren

Family Cites Families (8)

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Publication number Priority date Publication date Assignee Title
DE2932616A1 (de) * 1979-08-10 1981-02-26 Lamab Maskin Ab Spritzkabine
DE2936367C2 (de) * 1979-09-08 1982-05-19 Aerotechnik Hahn-Lehre-Sigler GmbH & Co, lufttechnische Anlagen, 7317 Wendlingen Spritzkabine.
US4926746A (en) * 1988-01-05 1990-05-22 Smith Clyde M Work chamber with shifting ventilation zone
US5095811A (en) * 1990-10-09 1992-03-17 Nordson Corporation Automotive powder coating booth with modulated air flow
DE4417188A1 (de) * 1994-05-17 1995-11-23 Flaekt Ab Bearbeitungskabine und Verfahren zum Belüften einer Bearbeitungskabine
DE19610566A1 (de) * 1996-03-18 1997-09-25 Gwe Ges Fuer Wasseraufbereitun Spritzstand zum Auftragen von viskosen Beschichtungsmitteln auf Gegenstände durch Spritzen
DE20210969U1 (de) * 2002-07-20 2002-10-31 Vollmer, Heinz-Georg, 48493 Wettringen Lüftungsanlage
AT8509U1 (de) * 2005-03-16 2006-09-15 Krammer Rupert Lackier- und/oder trockenkabine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112604891A (zh) * 2019-10-04 2021-04-06 丰田自动车株式会社 涂覆间和涂覆方法

Also Published As

Publication number Publication date
EP2606983A3 (fr) 2015-08-19
EP2606983B1 (fr) 2017-08-30
DE102011122056A1 (de) 2013-06-27

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