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
  • B05B16/40—Construction elements specially adapted therefor, e.g. floors, walls or ceilings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B16/00—Spray booths
  • B05B16/90—Spray booths comprising conveying means for moving objects or other work to be sprayed in and out of the booth, e.g. through the booth

Definitions

• the present invention relates to a treatment chamber intended to be used for example as a spray booth.
• This purpose is obtained by means of a treatment chamber according to the present invention, which is substantially characterized by an endless band, which is spirally rerouted and displaceable in the longitudinal direction of the chamber and forms the lateral walls of the same.
• Fig. 1 shows the treatment chamber in its position of use with its driving and supporting means and the treatment equipment belonging to the installation.
• Fig. 2 schematically shows that the treatment • chamber is formed by an endless band.
• Fig. 3 shows the sealing strips of two lateral edges of the band, which sealing strips can bear against each other, and moreover a spray nozzle introduced between said strips, and
• Figs. 4 and 5 show an embodiment of a driving means for the band in a side elevational view in the longitu- dinal direction of the band.
• a treatment chamber which by way of example can be used as a spray booth, is formed by an endless easily flexible band 1, which suitably exhibits good springin properties and is spirally rerouted by means of backing rollers, not shown in the drawings.
• the band 1 which substantially is made of electrically conducting material, by way of example spring steel, and which preferably is grounded, is rerouted at both ends of the spray booth round rerouting rollers 2 and 3 respectively, which occupy oblique positions, as can be seen in the drawings.
• the band 1 forms a straight portion 4 between said two rerouting rollers 2 and 3 respectively, along which straight portion different band treatment means are arranged.
• Said treatment means which by way of example can comprise a suction device or a burner 5, a washing means 6 and a drier 7, are provided for the removal of objects not desired, such as for example paint, from the band 1.
• the band 1, which is movably support ed by the backing rollers, is driven in the direction of the arrow by means of long driving rollers 8, each one supported in its bay frame 9 and 10 respectively, said bay frames being provided at the input end 11 and the output end 12 respectively of the treatment chamber.
• the driving rollers 8 are at one of their ends driven by for example a driving motor 13, which is attached to one'of the bay frames 9, and the outside of the driving rollers bears against the plane outside 1A of the band 1 and drives the band 1 according to the rotation of the rollers.
• a supporting means 16 also extends through the treatment chamber and comprises by way of example an endless chain, in which the objects to be treated are suspended and fed forwards through the treatment chamber.
• the upper portions of the two bay frames 9 and 10 respect ⁇ ively exhibit slits 17, and projecting stiffening flanges 18 and 19 respectively form input and output respectively for the objects to be treated.
• a sealing strip 20 and 21 respectively is fastened along the lateral edges IB and 1C respectively of the band 1, said sealing strip with one lateral edge gripp- ing round said lateral edge IB, 1C of the band and with its other lateral edge forming a resilient seal, which by way of example exhibits a pointed cross-sectional shape.
• These sealing strips 20, 21 normally bear tight against each other, when the band is moving along the treatment chamber from the input end 11 of the same to its output end 12.
• the resiliency of the strips 20, 21 permits that by way of example one or several spray nozzles 22 for paint are inserted between the two sealing strips 20, 21 at an optional place along the whole extension of the treatment chamber, as is shown in Fig. 3.
• the band 1 during its forward displacement moves past the spray nozzle 22, and the sealing strips 20, 21 are pressed round the spray nozzle 22.
• the sealing strips 20, 21 substantially resume their original shape and form an effective seal for the treatment chamber. It is of course also possible to introduce other guiding means for the band in order to provide an opening of insertion between two edges of the band in order to insert a treatment means.
• the lateral edge of one band portion can be forced to run as in a curve relative to the edge of an adjacent band portion, so that by way of example a spray nozzle for paint can be inserted in the bulge formed in the transversal and longitudinal direction res- pectively of the band and the treatment chamber.
• the mechanism illustrated in Figs. 4 and 5 can be used for guiding and driving the band 1.
• Guiding and driving means are provided on the side 1A of the band 1 facing away from the inside of the treatment chamber.
• said means comprise a chain or a toothed belt 23, which by means of spacer devices 24 are attached to the band 1.
• This chain or toothed belt 23 is driven b ⁇ r-A one or several sprocket wheels or gears 25 supported along the running direction of the band.
• Said chain or toothed belt 23 is in the longitudinal and running direction of the band guided by guiding means, which in the embodiment shown comprise guiding grooves 26 supported on each side of the chain or the toothed belt 23, said grooves suitably also supporting shafts 27, on which the sprocket wheels or gears 25 are journalled.
• the guiding grooves can be provided at certain points along the desired running length of the band so that said treatment chamber is formed or else exhibit a spiral-shaped extension and run along the whole desired length for the treatment chamber as a spiral-shaped loop.
• the treatment chamber can of course find other ranges of application than the one just described, by way of example drying plants, washing plants and refrigeratin plants.
• a band loop can be used

Landscapes

• Spray Control Apparatus (AREA)
• Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
• Coating Apparatus (AREA)
• Belt Conveyors (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=20340942

Family Applications (1)

Country Status (7)

Families Citing this family (11)

Citations (6)

Family Cites Families (3)

• 1980
  • 1980-05-12 SE SE8003531A patent/SE429928B/sv not_active IP Right Cessation
• 1981
  • 1981-05-11 FR FR8109369A patent/FR2481956A1/fr active Granted
  • 1981-05-12 JP JP7131081A patent/JPS5719054A/ja active Pending
  • 1981-05-12 DE DE19813118827 patent/DE3118827A1/de not_active Withdrawn
  • 1981-05-12 WO PCT/SE1981/000143 patent/WO1984001726A1/en unknown
  • 1981-05-12 IT IT21650/81A patent/IT1194792B/it active
  • 1981-05-12 GB GB8114532A patent/GB2078556B/en not_active Expired

Patent Citations (6)

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