EP0789628B1 - Cabine de revetement par pulverisation de poudre - Google Patents

Cabine de revetement par pulverisation de poudre Download PDF

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Publication number
EP0789628B1
EP0789628B1 EP95935952A EP95935952A EP0789628B1 EP 0789628 B1 EP0789628 B1 EP 0789628B1 EP 95935952 A EP95935952 A EP 95935952A EP 95935952 A EP95935952 A EP 95935952A EP 0789628 B1 EP0789628 B1 EP 0789628B1
Authority
EP
European Patent Office
Prior art keywords
booth
powder coating
powder
coating booth
set forth
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.)
Expired - Lifetime
Application number
EP95935952A
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German (de)
English (en)
Other versions
EP0789628A1 (fr
Inventor
Erich Krämer
Matthias Krämer
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Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from DE19524327A external-priority patent/DE19524327A1/de
Application filed by Individual filed Critical Individual
Publication of EP0789628A1 publication Critical patent/EP0789628A1/fr
Application granted granted Critical
Publication of EP0789628B1 publication Critical patent/EP0789628B1/fr
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
    • B05B16/00—Spray booths
    • B05B16/20—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations
    • B05B16/25—Arrangements for spraying in combination with other operations, e.g. drying; Arrangements enabling a combination of spraying operations for both automatic and manual spraying
    • 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
    • B05B14/41—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths by cleaning the walls of the booth
    • 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
    • B05B14/48—Arrangements for collecting, re-using or eliminating excess spraying material for use in spray booths specially adapted for particulate 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
    • B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
    • B05B16/405—Partly or totally cylindrical walls; Round floors

Definitions

  • the invention is concerned with powder coating booths which in particular, but not exclusively for continuous operation are determined, and for example also for a manual coating operation are suitable.
  • a powder coating booth has at least one powder spray device, which with at least one powder preparation and supply device connected is.
  • a powder coating booth according to the preamble of the claim 1 is described in US-A-5,149,373.
  • the respective housing is for storage collapsible and can be unfolded if it is as a cabin for powder coating in the supporting base frame is used.
  • separate cabin housings for each Paint is required and the interior of the cabin is cleaned not, but should be avoided with this.
  • US-A-4 715 314 describes a powder coating installation which to simplify the interior cleaning process of the cabin has at least cabin interior walls made of a non-adhesive, electrically non-conductive plastic material. Furthermore, a cleaning device is provided, which is hanging on a transport device or a transport rail in Longitudinal direction through the powder coating booth for the execution of Internal cleaning work is moved through. To at a cabin the cleaning device with just one pass for the workpieces being able to introduce it becomes the introduction before executing the Cleaning work shifted in the vertical direction and by 90 ° turned. To carry out the cleaning work inside the The powder coating booth then becomes the cleaning device moved along the longitudinal direction of the cabin through the same.
  • US-A-4 220 431 is an embodiment of a coating booth Known which one on the entry or exit side Automatically openable and lockable lock for insertion or Discharge of the coated objects. Furthermore, in JP-A-5 192 619 scale-like cover parts for covering slots in Spray booths described.
  • a powder coating booth is used for this purpose provided at least one powder spraying device, which is specified in claim 1.
  • Powder spraying devices can preferably be used here can be used with several spray fingers, which use the tribology effect in the powder spraying process. Even with a reduced number of powder spray devices you get a larger spray height and width as well as an increased Fog.
  • the design of the powder coating booth has a significantly reduced space requirement, in particular Floor area, since it is relatively short in the longitudinal direction. This allows the available parking space for considerably reduce such a powder coating booth and it is easy to incorporate into a powder coating line possible.
  • the cabin can be stacked vertically using the arranged powder spray devices, which preferably on opposite walls of the cabin are arranged, a sufficiently uniform and dense veil for powder coating of the property generated over a relatively short distance without needing larger height dimensions.
  • a powder coating booth which is used for an automatic Continuous operation is determined, and on the ceiling surface a passage for a conveyor frame, which on a conveyor, how a chain conveyor hangs becomes one such a slit-shaped passage in the ceiling surface when Intended use of the cleaning device preferably automatically tightly closed by the same, so that also at a cabin intended for continuous operation Cleaning in a closed container, formed by the Cabin, can be carried out.
  • the conveyor can be an articulated arm or swivel arm construction have, for the arrangement of a cleaning device for example a double articulated arm construction
  • Auxiliary conveyor or the like can be provided.
  • the Cleaning facility could even be directly with the conveyor be connected.
  • the cleaning device comprises a telescopic arrangement, by means of which the cleaning device in the vertical direction in the formed by the cabin Interior is movable.
  • the cleaning device in terms of design to the cross-sectional shape and the height of the cabin must be adjusted.
  • a cleaning device can be fixed for cleaning or be used. You can then, for example, a rotary movement about its longitudinal axis and / or preferably a slight one oscillating movement around the longitudinal axis and / or in the lateral Execute direction.
  • the cleaning device can expediently have a basket-shaped support structure. At a Such a cleaning device, for example, from the Side retracted into the cabin, and cleaning the inside wall or the inside walls of the cabin can quickly and complete with a large area coverage by the cleaning facility respectively.
  • the design of the powder coating booth according to the invention can be the various designs of cleaning equipment use which with compressed air and / or suction air and / or can be operated wet.
  • compressed air and / or suction air and / or can be operated wet When changing color in Hue can only be used for cleaning, especially ionized air can be used and the remaining particulate matter can stay here.
  • the Cleaning device the inner walls of the closed container, and in particular sponge parts, nozzles or the like can be attached the same may be provided.
  • the Powder coating booth is the floor area of the booth funnel-shaped, and there is a powder outlet as well if necessary, a closable opening for liquid discharge available when wet cleaning.
  • the automatic cleaning device the stripped on the wall surfaces of the cabin or blown off powder is conveyed to the powder outlet, suctioned off and if necessary be recovered.
  • a downstream wet-working cleaning device is also a Drainage of the liquid at the bottom of the cabin through the funnel-shaped design possible, so that the cleaning work fully automatic with powder recovery have it carried out.
  • the powder coating booth is preferably in the direction of flow of the material to be coated on the inlet side and arranged on the outlet side of the cabin, which to a Post-coating station or a pre-coating station convertible is.
  • These lock (s) are of course designed such that they can be closed tightly when cleaning the Cabin interior is made essential with this preferred design is the fact that this Locks have a double function and in addition to one Post-coating station or a pre-coating station convertible on which, depending on the configuration of the coating parts a manual pre or post coating optionally also accessible from the right or left can be carried out when the system is running, if necessary.
  • This enables the powder coating booth according to the invention universally in a simple way to the well-specific Adapt peculiarities.
  • the lock floor is preferably here firmly trained.
  • the powder coating booth according to the invention allows easy conversion from Manual coating operation on automatic coating operation and vice versa.
  • the Opposite wall areas assigned to powder spraying devices adjoining the cabin in a mirror-image arrangement Flaps of different sizes for manual operation and / or automatic operation is provided.
  • the contiguous Flaps can all be directed outwards to open. For automatic operation, opening the smaller one is sufficient sized flap to make the appropriate slot for the Expose the passage of the powder spraying device.
  • the powder coating booth is then used in manual mode also opened the larger flap, and the Cabin interior is for the hand-operated powder spraying device (s) accessible, thanks to the mirror image Arrangement of the flaps on the opposite wall surfaces manual powder spraying device (s) to be used in Longitudinally offset from each other to act on the good can be brought. This creates a mutual Disability when working the hand-operated spray devices avoided on the opposite surfaces.
  • the powder sprayers can be arranged directly opposite one another be, and for example in the vertical direction if necessary be synchronously movable. Here, a type of "pusher effect" caused by electrostatics. At In certain applications, an arrangement of the spray device (s) can sufficient on one wall surface of the cabin.
  • the powder coating booth according to the invention are those adjacent to the locks Cabin wall areas can be folded outwards in such a way that such a large one Opening is formed that the cleaning device Insert laterally into the cabin and retract.
  • the powder coating booth according to the invention be designed so that the cleaning device is retracted from above becomes.
  • the powder coating booth is designed so that the Cleaning device moved into the cabin interior from above the cabin is preferably open at the top.
  • a blow ring or nozzles can be assigned, which by means of Exhaust air, for example from the post-filter, can be fed.
  • blow nozzles can also be used in the area of the locks be additionally provided. This exposure to air can effectively an exit of the powder / air mixture from the Cabin can be prevented in the most energy-saving way possible.
  • Blow nozzles may also be in the area of the locks Cabin height direction may be provided.
  • the top of the cabin is preferably by means of a lid can be closed, which is preferably in one piece trained and attached to the cleaning device.
  • the top of the cabin is automatically at the intended Use of the cleaning device closed to one tightly closed container interior for carrying out the To have cleaning work.
  • one part forms the cabin wall a rear wall of the central powder preparation and Utilities, and it's a communication port to the interior of the cabin, which by means of a Interior of the cabin openable flap is closable.
  • a such design allows that in the central powder processing and Excess excess accrued Powder in case of color change by opening the Access opening to the interior, vacuumed and then can be recovered via the powder cycle. This allows the effective use of the powder for the Increase powder coating. Of course this will Connection opening then closed using the flap when the necessary cleaning work with the help of the invention Cleaning device can be carried out fully automatically should.
  • Flaps designed so that they seal on their sealing edges have so that the interior of the cabin when closed Flaps closed reliably and also pressure-tight is what especially for performing wet cleaning work with the help of the cleaning device according to the invention is an advantage.
  • cleaning facilities with specified, which to the cross-sectional shape and the Height of the powder coating booth with respect to the outline are adapted and do not need to move vertically.
  • these can be fixed or around their longitudinal axis are used in rotation, and / or such a cleaning device can also be an oscillating movement around the Execute the longitudinal axis and / or in the lateral direction.
  • the spray devices opposite wall or wall areas preferably non-conductive should be to prevent charging.
  • the corresponding walls or wall areas could be made of non-conductive Material can be made or it can anyway a non-conductive coating on the entire surface or also be provided only on partial areas. Therefore, the Unloading cabin by itself and charging can be suppressed will be guaranteed as well as safe operation.
  • the Space can be circular in cross section of the cabin or be square-shaped.
  • the cabin forms a structure similar to a standing one Cylinders, while having a square cross-sectional shape receives a tower-like configuration.
  • the corners of one quadrangular cross-section are at least in the interior of the Powder coating booth preferably rounded or beveled.
  • Powder coating booth arranged slots by means of at least a flap that can be opened to the outside can be closed, whereby the flap directly limits the respective slot.
  • Sizing allows the slots in the event of cleaning can be sealed, so that according to a preferred Embodiment the cabin with closed slots forms closed container, the inner walls of which by means of a for example cleaning device movable in the vertical direction are preferably automatically cleaned, whereby it is avoided that powder dust escape during cleaning can to minimize the workload.
  • a fixed slot could be in a Openable door can be provided, which for carrying out the Cleaning work can be locked in a suitable manner.
  • the powder coating booth designed to significantly reduce one Has floor space and that it is also compared to conventional coating booths encloses reduced internal volume. So the Cabin has a reduced air flow volume and the operation will much more energy efficient. Furthermore, such a Designing a powder coating booth also effective and automatic cleaning of the inner walls on structurally simple Way, by a self-centering cleaning device What is used is a time-saving cleaning on automatic Way allowed.
  • a powder coating booth designated as a whole by 1 shown which is a circular or optionally has an oval cross-section and in shape about a standing cylinder is formed.
  • the powder coating booth 1 has a small footprint 2 and is columnar.
  • the material to be coated is in the direction of flow A by the one formed by the powder coating booth 1 Moving interior in an automatic mode.
  • This Powder spraying devices 4 are known per se and allow them a powder coating even with one directly on a line opposite arrangement of the powder spraying devices 4.
  • Each slot 3 is assigned a flap 5, which at Coating shop is open to the outside.
  • a fixed slot in an openable door for the implementation of the powder spraying device (s) 4 is provided.
  • the powder spraying device (s) 4 are with a central powder preparation and supply facility 6, a so-called "powder center", which is arranged in the illustrated embodiment is that part of the cabin wall is the back wall of this central one Powder preparation and supply device 6 forms. How for example in a broken line in Figure 6 in general Is entered, there is a connection opening in the area of the central powder preparation and supply device 6 7 available to the interior of the cabin 1, which by means of a Flap 8 can be opened and closed.
  • the ceiling surface 9 of the powder coating booth 1 a slot-shaped passage 10, which is in Passage direction A extends.
  • a conveyor frame 11 on which not shown and Good to be coated is arranged.
  • this conveyor frame 11 with the attached to the material to be coated through the interior of the Powder coating booth 1 during continuous operation in the direction of passage A through and on the powder spraying devices 4 passed by.
  • the Ceiling surface 9 is omitted so that it is open at the top.
  • annular Air blowing device 40 and / or it can also additionally Blow nozzles 41 may be arranged in the central region.
  • the ring-shaped Air blowing device 40 has an annular base body and several nozzle openings, not shown, which such are designed and oriented so that they have air towards the Blow inside the powder coating booth 1.
  • the ring-shaped Air blowing device 40 and / or the blowing nozzles 41 can also be used Exhaust air from the post-filter, i.e. with ultra-pure air, is fed.
  • an outwardly projecting edge 42 is formed which forms a kind of pocket 43.
  • FIG. 2a Detail shown in an enlarged view. If how for example, shown in Figure 3 of the drawing Cleaning device 20 a scraper 25 or a scraper lip (not shown), this stripper can 25 in the pocket-like expanded space 43 at the end of the cleaning work are inserted, and with a sealing part 45, which is provided on the cleaning device 20 (see FIG. 2a) the pocket-shaped space 43 can then be sealed.
  • nozzles 47 which are used as cleaning nozzles, can be designed, for example, as blowing nozzles into the tightly closed pocket-shaped space 43 Cleaning medium, such as compressed air or the like (see still description below), are introduced, with the Support, if necessary, suction can take place.
  • Cleaning medium such as compressed air or the like (see still description below)
  • suction can take place.
  • An outlet 48 can then contain the derived powder Exhaust air flow can be supplied to a cyclone or the like for example to enable recovery.
  • the nozzles 47 can be opposite or offset from each other be arranged and of course are formed over the scope of the pocket-shaped space 43 several such nozzles 47 and optionally several outlets 48 are also provided. With the help of this
  • the scraper 25 can be designed even at the end of the cleaning process be cleaned, thereby ensuring that over the scraper 25 does not contaminate the powder at a further color changes are caused.
  • the powder coating booth 1 in the illustrated Embodiment on the inlet side and outlet side in the direction of flow A seen a lock 13.
  • the lock 13 includes one preferably fixed floor 14 and door-shaped flaps 15, which rotates on the base body of the powder coating booth 1 are arranged.
  • blowing nozzles 46 are arranged. These blow nozzles 46 direct an air flow in the direction of the interior of the powder coating booth and thus prevent 13 when the lock is open an escape of the powder / air mixture from the interior of the Powder coating booth 1, similar to the one above described embodiment, in which the powder coating booth 1 is open at the top.
  • the design of the lock 13 on the outlet side can be made in the same or similar manner so that one then, if necessary, also a post-coating station through the lock 13 can provide.
  • the post-coating station thus formed or pre-coating place is optionally from accessible on the right or left depending on the requirements, why the door-shaped flaps 15 opened accordingly getting closed.
  • the Bottom area 16 of the powder coating booth 1 preferably funnel-shaped, and it is a connection with one Powder outlet 17 or optionally with a liquid outlet line 18 producible.
  • the floor can be flat or be slightly inclined. With the help of no closer shown pivoting slides or sliding devices or The same may be the case with cleaning Powder can be conveyed to the powder outlet 17, for example.
  • the powder coating booth not shown in detail has a flat bottom 57
  • the powder during the Operation by means of a floor cleaning device 58 in the direction of a suction channel 59, which, for example with a downstream cyclone, not shown connected is.
  • the floor cleaning device 58 shown in the example shown comprises a curved, preferably spiral-shaped clearing arm 60, on which stripping devices, such as brushes or the like and / or blowing devices can be provided.
  • this clearing arm 60 is approximately vertical extending axis 61 in the interior of the powder coating booth moves that the flat bottom 57 completely during a complete rotation of the clearing arm 60 about the axis of rotation 61 is swept over.
  • a flat floor can also be used 57 of a powder coating booth automatically cleaned become.
  • the powder coating booth 1 has a compact design and in particular a relatively small footprint. Therefore you get one from the powder coating booth 1 enclosed reduced volume, so that the Powder coating booth 1 with a reduced air balance operates from only 25% of the previous or less. Through this reduction in the power volume you get one considerable energy savings when operating the powder coating booth 1. In particular, that of the invention achievable more favorable air budget for the powder coating booth 1 also justified that much smaller opening areas are present, the length of the slots 3, 3 'is greatly reduced, and also the number of slots 3, 3 'much less than in conventional powder coating booths. On the other hand the pre- and post-coating stations are completely eliminated.
  • FIG. 8 In the illustration according to FIG. 3 and that which will be explained later Figure 8 are preferred embodiments of an overall with 20 designated cleaning device shown, which a automatic cleaning of the inside walls of the powder coating booth 1 allowed. If, for example, a powder change is to be made, the flaps 5 for the powder spray devices 4 and the door-shaped flaps 15 of the locks 13 closed.
  • the connection opening 7 from the central powder preparation and supply device 6 to the interior of the Powder coating booth 1 can be opened by opening the flap 8 be exposed, and that in the central powder processing and Supply device 6 accumulated excess powder can enter the interior of the powder coating booth, sucked in and via the powder outlet 17 to the powder circuit Recovery are discharged.
  • FIG. 3 An example is the cleaning device designated as a whole with 20 retracted, using a plug-shaped Seal 21 of the slot-shaped passage 10 in the ceiling area 9 of the powder coating booth 1 are closed automatically which can be removed from the cleaning device 20 can.
  • the cleaning device 20 is then in the interior of the Powder coating booth 1 in the vertical direction from above moved down and possibly back, with the preferred 3 a telescopic arrangement 22 for this purpose is available.
  • Nozzles 23 can be arranged on the cleaning device 20 for wet cleaning of the inside walls of the powder coating booth 1, brushes 24, sponges or the like and / or scrapers 25 may be provided.
  • this Cleaning device 20 depends on the geometric conditions and the application purposes, but in particular on automatic cleaning of the interior of the powder coating booth 1 dry in the vertical direction, for example using compressed air and / or suction air, ionized air and / or wet, for example with the help of water and additives can be carried out.
  • wet cleaning can possibly Hot air and / or room air in addition to accelerating the Cleaning process used for example by means of driving nozzles become. Because all for the intended operation of the powder coating booth 1 openings for powder coating at the powder coating booth 1 with associated devices are closed, the powder coating booth 1 forms one closed container, which is effective and automatic Way can be cleaned dry and wet.
  • the liquid outlet line 18 in the bottom region 16 provided which can be opened with the aid of a flap 26 when previously the dry stripped powder from the Inner wall of the powder coating booth 1 and optionally from the central powder preparation and supply device 6 has been conveyed to the powder outlet 17.
  • the at Wet cleaning device 20 introduced cleaning liquid on the bottom of the powder coating booth 1 reliably discharged via the liquid outlet line 18 become. With wet cleaning, this can be done using hot air and / or accelerate room air and / or blow-off nozzles.
  • FIG 4 is a schematic cross-sectional view of a another preferred embodiment of a total of 1 ' designated powder coating booth shown.
  • this powder coating booth 1 On the opposite Wall areas for the introduction of the powder spraying devices 4 ' a double flap arrangement in a mirror-image arrangement, which comprise at least two flaps of different sizes.
  • the flap 5 ' provided in the above illustration is small and serves to open and close the assigned slot 3 'for performing the powder spraying devices 4 '.
  • a larger flap 30 on each side which also, as in broken lines is shown in Figure 4, can be opened to the outside.
  • the powder spraying device (s) can be horizontal or vertical be arranged side by side or one above the other.
  • a connection of two flaps 5 ' is shown schematically in FIG. and 30 for example from FIG. 4 in the closed position clarifies.
  • the joint of the flap 5 ', 30 corresponding seals 31 are provided on the associated sides, which is a reliable in the closed position of the flaps 5 ', 30 tight closure of the interior of the powder coating booth 1 'ensure.
  • you can also from the representation different seals are used, and of course are the same or similar as well as corresponding seals on the sealing edges of the other provided if necessary Flaps of the powder coating booth construction 1, 1 ' provided for the cleaning process and use of the Cleaning device 20 to a tightly closed container have, which is formed by the powder coating booth 1, 1 ' becomes.
  • FIG. 6 shows a further embodiment variant of an overall shown with 1 '' powder coating booth.
  • the consistent with the above embodiments Details are not explained again, only the essential differences.
  • the same or similar Parts are therefore given the same reference numerals in FIG. 6.
  • the powder coating booth 1 ′′ they are at least one Lock 13 adjacent cabin wall areas to the outside foldable, like this with the total designated 32 Flap arrangement is shown that the above and Cleaning device 20 shown schematically in FIG Flow direction A or laterally into the powder coating booth 1 '' insertable and retractable. Like broken ones Lines are shown, the valve assembly 32 allows which optionally with the arrangements described above for example according to Figure 4, can be linked that a so large opening area at the powder coating booth 1 '' can be exposed that the cleaning device 20 by the Side into the interior of the powder coating booth 1 '' is moved into it.
  • the cleaning device 20 is located in the interior of the powder coating booth 1 '' Flap arrangement 32 closed again and in the with pulled Position shown in line, the door-shaped Flaps 15 of the locks 13 are closed and flap 8 for the connection opening 7 to the powder preparation and Supply device 6 can be opened.
  • the door-shaped Flaps 15 of the locks 13 are closed and flap 8 for the connection opening 7 to the powder preparation and Supply device 6 can be opened.
  • FIG. 7 shows a sectional view similar to that of FIG. 6 another embodiment of a powder coating booth 1'''.
  • the powder coating booth 1 ''' is square in cross section.
  • the inner edge areas with regard to a effective cleaning rounded or beveled as shown.
  • a corresponding flap arrangement 32 ' similar to that in FIG Area of at least one lock 13 a corresponding flap arrangement 32 'provided which the insertion of the cleaning device 20 'from the side with the flap arrangement open 32 'allowed.
  • FIG 8 serves to illustrate a further embodiment a cleaning device designated overall by 20 ′′.
  • This Cleaning device 20 '' is in terms of height and cross-sectional shape to the corresponding design of those designated there with 1 '' '' Adjusted powder coating booth.
  • the cleaning device 20 ′′ has an example, for example basket-shaped support structure 50, on which optionally Brush inserts rotatable about their own axes 51 are provided.
  • This cleaning device is used for cleaning 20 '' essentially fixed in the interior of the Powder coating booth 1 '' '' arranged.
  • This cleaning facility 20 '' covers all interior wall surfaces for cleaning the powder coating booth 1 '' ''.
  • the cleaning device 20 ′′ can rotate about its Execute longitudinal axis.
  • This cleaning device 20 ′′ is similar designed, for example, like a brush arrangement that at Vehicle wash systems, for example, is used. Otherwise the further details, which are shown in FIG. already above in connection with other design forms a powder coating booth explained.
  • FIG 9 is a schematic side view preferred embodiment of a powder spray device 4 '' shown, which includes, for example, finger-shaped spray parts.
  • the slot or formed in each case in the powder coating booth Feedthrough slot 3, 3 ' also during powder coating operation be reliably covered, although the Powder spraying devices 4 ′′, for example in FIG. 1 in vertical or, if necessary, also in a horizontal direction can move in a controlled manner.
  • the total air budget of the powder coating booth can be configured 1, 1 ', 1' ', 1' '', 1 ''''' further improve, because practically in the area of the implementation on the wall surface almost air leakage is no longer possible.
  • the invention is not based on the above described details of the preferred embodiments limited, but there are numerous changes and modifications possible, which the specialist will meet if necessary. So are also combined cross-sectional shapes besides round and square, like oval or the like possible. Furthermore, the Flap arrangements depending on the application, too partially omitted or designed differently, provided that for cleaning using the cleaning device 20, 20 ', 20' 'from the powder coating booth 1, 1', 1 '', 1 '' ', 1' '' ' 'a closed container is formed, which is a automatic cleaning without complex slide guides allowed and by closing the flaps at the same time Cleaning this with allows.
  • At least the wall area (s) opposite the powder spray device (s) 4, 4 ', 4'' can be made of non-conductive material, for example an insulator.
  • a coating made of non-conductive material can be applied to a conductive base material, as a result of which the manufacture can become significantly cheaper. This allows a much smaller distance to be selected between the part to be coated and the edge of the cabin, since the disruptive effect of the outer wall (powder is attracted to the outer wall by earthing) is avoided. The dimensions of the cabin can thus be reduced even further.

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  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
  • Electrostatic Spraying Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (23)

  1. Cabine de revêtement par pulvérisation de poudre, en particulier pour le fonctionnement continu, qui comporte au moins un dispositif de pulvérisation de poudre (4, 4', 4'') qui est relié à au moins un appareil de préparation de poudre et d'alimentation (6), la cabine (1, 1', 1'', 1''', 1'''') ayant une petite base et ayant l'allure d'une colonne, dans au moins une paroi de la cabine (1, 1', 1'', 1''', 1'''') étant prévue une fente (3, 3'), que l'on peut fermer pour introduire le dispositif de pulvérisation de poudre (4, 4', 4''), caractérisée en ce qu'est prévu un dispositif de nettoyage (20, 20', 20'') qui, avec les fentes fermées (3, 3'), dépoussière les parois internes du récipient fermé formé par la cabine (1, 1', 1'', 1''', 1''''), pendant la réalisation d'un déplacement, dans la direction verticale, à l'intérieur du volume intérieur de la cabine.
  2. Cabine de revêtement par pulvérisation de poudre suivant la revendication 1, caractérisée en ce qu'avec une cabine (1, 1', 1'', 1''', 1'''') comportant un passage (10) pour un transporteur (11) dans la surface supérieure (9), en fonctionnement continu ce passage (10) est fermé et rendu étanche automatiquement pendant le travail du dispositif de nettoyage (20, 20', 20'').
  3. Cabine de revêtement par pulvérisation de poudre suivant la revendication 1 ou 2, caractérisée en ce que le dispositif de nettoyage (20, 20', 20'') peut être actionné par de l'air comprimé et/ou de l'air aspiré et/ou par voie humide.
  4. Cabine de revêtement par pulvérisation de poudre suivant une des revendications 1 à 3, caractérisée en ce que le dispositif de nettoyage (20, 20', 20'') brosse la paroi interne du récipient et est, de préférence, équipé de parties en éponge, de buses (23), etc.
  5. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que le dispositif de nettoyage (20, 20') comporte un dispositif téléscopique (22) pour son déplacement en direction verticale.
  6. Cabine de revêtement par pulvérisation de poudre suivant une des revendications 1 à 5, caractérisée en ce que le dispositif de nettoyage (20'') est adapté à la forme de la section transversale et à la hauteur de la cabine (1, 1', 1'', 1''', 1'''')
  7. Cabine de revêtement par pulvérisation de poudre suivant la revendication 6, caractérisée en ce que, pour la réalisation du procédé de dépoussièrage, le dispositif de nettoyage (20'') est placé fixe dans le sens de la circonférence de la cabine et/ou, de préférence, fait un mouvement de rotation autour de son axe longitudinal et/ou, de préférence, un léger mouvement oscillant autour de cet axe longitudinal et/ou dans la direction latérale.
  8. Cabine de revêtement par pulvérisation de poudre suivant la revendication 6 ou 7, caractérisée en ce que le dispositif de nettoyage (20'') est prévu en forme de panier, comme structure support (50).
  9. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que la cabine (1, 1', 1'', 1''', 1'''') est prévue en forme de trémie sous la base (16) et comporte une sortie de poudre (17) ainsi qu'éventuellement une ouverture obturable pour la sortie de liquide (par 18) pour le nettoyage par voie humide.
  10. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que, dans le sens du passage (A) du produit à revêtir, est prévu, du côté de l'entrée et/ou du côté de la sortie de la cabine (1, 1', 1'', 1''', 1''''), un canal de transfert (13) transformable à la fois en place de postrevêtement ou en place de prérevêtement.
  11. Cabine de revêtement par pulvérisation de poudre suivant la revendication 10, caractérisée en ce que la place de postrevêtement ou de prérevêtement est, au choix, accessible de l'un ou de l'autre côté.
  12. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que, dans la paroi opposée de la cabine (1, 1', 1'', 1''', 1''''), associée au dispositif de pulvérisation de poudre (4, 4', 4'') , il est prévu un arrangement de volets contigus l'un à l'autre (5, 5', 30), de différentes tailles pour un fonctionnement manuel ou automatique.
  13. Cabine de revêtement par pulvérisation de poudre suivant la revendication 12, caractérisée en ce que, pour le dispositif de pulvérisation de poudre (4, 4', 4'') prévu en face des zones de paroi de la cabine (1, 1', 1'', 1''', 1''''), sont prévus inversement les systèmes associés aux zones de paroi d'en face des volets contigus l'un à l'autre (5, 5', 30), de différentes tailles.
  14. Cabine de revêtement par pulvérisation de poudre suivant une des revendications 10 à 13, caractérisée en ce que les zones de paroi (32, 32') de cabine contiguës au moins à un des canaux de transfert (13) sont repliables de manière qu'à l'état plié, on puisse introduire latéralement dans la cabine (1, 1', 1'', 1''', 1'''') le dispositif de nettoyage (20, 20' 20'').
  15. Cabine de revêtement par pulvérisation de poudre suivant une des revendications 1 à 14, caractérisée en ce que le côté supérieur de la cabine (1, 1', 1'', 1''', 1'''') est fermé par un couvercle qui est, de préférence, prévu' en une seule partie et est ajouté au dispositif de nettoyage (20, 20', 20'').
  16. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce qu'une partie de la paroi de cabine forme l'arrière de l'appareil de préparation de poudre et d'alimentation (6) et qu'il est prévu une ouverture de liaison (7) vers l'intérieur de la cabine (1, 1', 1'', 1''', 1''''), laquelle est fermée par un volet (8) qui peut s'ouvrir sur l'intérieur de la cabine.
  17. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que les volets (5, 5', 8, 30, 32) comportent des garnitures (31) pour la fermeture étanche de l'intérieur de la cabine (1, 1', 1'', 1''', 1''''), avec les volets fermés.
  18. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce qu'au moins la ou les zones de paroi en face du ou des dispositifs de pulvérisation de poudre (4, 4', 4'') sont en matière isolante ou comportent un revêtement en matière isolante.
  19. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que le ou les dispositifs de pulvérisation de poudre (4, 4', 4'') comprennent des parties écrans (56) pour recouvrir la fente associée (3, 3'), lesquelles se chevauchent, de préférence comme des tuiles, ainsi que sont disposés, de préférence amovibles sur l'axe (55), des dispositifs de pulvérisation de poudre (4, 4', 4'') respectifs.
  20. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que la cabine (1, 1', 1'', 1''', 1'''') a une section transversale circulaire ou ovale.
  21. Cabine de revêtement par pulvérisation de poudre suivant une des revendications 1 à 19, caractérisée en ce que la cabine (1''') a une section transversale quadrangulaire ou rectangulaire.
  22. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que, dans au moins deux parois opposées de la cabine (1, 1', 1'', 1''', 1''''), est prévue, à chaque fois, au moins une fente obturable (3, 3') pour le passage des dispositifs de pulvérisation de poudre (4, 4', 4'').
  23. Cabine de revêtement par pulvérisation de poudre suivant une des revendications précédentes, caractérisée en ce que la ou les fentes (3, 3') sont fermées par au moins un volet (5, 5') ouvrable vers le côté extérieur et que le volet (5, 5') limite la fente respective (3, 3').
EP95935952A 1994-10-24 1995-10-20 Cabine de revetement par pulverisation de poudre Expired - Lifetime EP0789628B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4437968 1994-10-24
DE4437968 1994-10-24
DE19524327A DE19524327A1 (de) 1994-10-24 1995-07-04 Pulverbeschichtungskabine
DE19524327 1995-07-04
PCT/EP1995/004115 WO1996012568A1 (fr) 1994-10-24 1995-10-20 Cabine de revetement par pulverisation de poudre

Publications (2)

Publication Number Publication Date
EP0789628A1 EP0789628A1 (fr) 1997-08-20
EP0789628B1 true EP0789628B1 (fr) 1999-01-20

Family

ID=25941322

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95935952A Expired - Lifetime EP0789628B1 (fr) 1994-10-24 1995-10-20 Cabine de revetement par pulverisation de poudre

Country Status (4)

Country Link
EP (1) EP0789628B1 (fr)
AT (1) ATE175900T1 (fr)
DE (1) DE29521972U1 (fr)
WO (1) WO1996012568A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10158826C1 (de) * 2001-11-30 2003-06-05 Wagner Ag Altstaetten J Pulverbeschichtungskabine mit mindestens einem Handbeschichterplatz
US6730167B2 (en) 2000-10-05 2004-05-04 Nordson Corporation Powder coating spray booth with a powder extraction system
US6866717B2 (en) 2000-10-05 2005-03-15 Nordson Corporation Powder coating spray booth with air curtain
US11845096B2 (en) 2020-12-18 2023-12-19 Exel Industries Robot, system and method for electrostatic powder coating

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9503821D0 (en) * 1995-02-25 1995-04-19 Gummer Edward C Improvements in or relating to powder coating apparatus
DE19920466A1 (de) 1999-05-04 2000-11-09 Erich Kraemer Verfahren zum Abreinigen eines Innenraums einer Beschichtungskabine, insbesondere einer Pulverbeschichtungskabine sowie Beschichtungskabine, insbesondere Pulverbeschichtungskabine mit Reinigungseinrichtung
DE10115376B4 (de) 2001-03-28 2006-03-16 EISENMANN Fördertechnik GmbH & Co. KG Anlage zum Pulverlackieren von Gegenständen
DE10136453A1 (de) * 2001-07-26 2003-02-20 Wagner Internat Ag Altstaetten Reinigungseinrichtung einer Pulverbeschichtungskabine
US7665414B2 (en) 2005-09-19 2010-02-23 Nordson Corporation Powder coating booth
CN103801488B (zh) * 2014-02-17 2017-02-01 中山市君禾机电设备有限公司 一种应用于粉末喷涂线的立式圆形喷房

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220432A (en) * 1978-07-03 1980-09-02 Gyromat Corp. Part gaging control for liquid seal system
CH668008A5 (de) * 1985-04-30 1988-11-30 H U Ramseier Fa Elektrostatische pulverbeschichtungsanlage.
US4898116A (en) * 1987-09-14 1990-02-06 Onoda Cement Company, Ltd. Powder coating booth
FR2640526B1 (fr) * 1988-12-21 1991-04-05 Sames Sa Procede et installation d'application d'un produit de revetement
JP2538826B2 (ja) * 1991-10-28 1996-10-02 昭和アルミニウム株式会社 塗装装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6730167B2 (en) 2000-10-05 2004-05-04 Nordson Corporation Powder coating spray booth with a powder extraction system
US6866717B2 (en) 2000-10-05 2005-03-15 Nordson Corporation Powder coating spray booth with air curtain
DE10158826C1 (de) * 2001-11-30 2003-06-05 Wagner Ag Altstaetten J Pulverbeschichtungskabine mit mindestens einem Handbeschichterplatz
US6783595B2 (en) 2001-11-30 2004-08-31 J. Wagner Ag Powder coating compartment comprising at least one manual coating station
US11845096B2 (en) 2020-12-18 2023-12-19 Exel Industries Robot, system and method for electrostatic powder coating

Also Published As

Publication number Publication date
EP0789628A1 (fr) 1997-08-20
DE29521972U1 (de) 1998-12-24
ATE175900T1 (de) 1999-02-15
WO1996012568A1 (fr) 1996-05-02

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