Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
  • B05B12/08—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means
  • B05B12/12—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus
  • B05B12/126—Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material to be discharged, of ambient medium or of target ; responsive to condition of spray devices or of supply means, e.g. pipes, pumps or their drive means responsive to conditions of ambient medium or target, e.g. humidity, temperature position or movement of the target relative to the spray apparatus responsive to target velocity, e.g. to relative velocity between spray apparatus and target
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
  • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
  • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
  • B05B13/0431—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation with spray heads moved by robots or articulated arms, e.g. for applying liquid or other fluent material to 3D-surfaces
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
  • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
  • B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
  • B05B13/02—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work
  • B05B13/04—Means for supporting work; Arrangement or mounting of spray heads; Adaptation or arrangement of means for feeding work the spray heads being moved during spraying operation
  • B05B13/0447—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles
  • B05B13/0452—Installation or apparatus for applying liquid or other fluent material to conveyed separate articles the conveyed articles being vehicle bodies
• • 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
• • 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

Definitions

• the present invention relates to an in-line painting installation, in particular of motor vehicle components.
• the paint line will be advantageous if by simple program modification operations In the case of paint robots and parts conveyors, it is possible to accept parts of another type.
• the current lines can be classified in two main categories: - those in which a continuous conveyor ensures the circulation of parts in different successive positions; in this case the movement is continuous and the speed of movement is that imposed by the station having the longest cycle time, the robots being fixed or accompanying at least partly the conveyor in each station;
• the present invention better meets the expectations of users than existing installations both from the point of view of economy and that of flexibility while having a flexibility of operation to reduce the best cycle times.
• the subject of the invention is therefore a paint installation comprising at least one painting booth crossed by each of the parts to be painted, this booth being located between an upper air distribution distributor and lower means for collecting, recovering and treatment of the air laden with paint particles, this booth being furthermore equipped with at least one paint applicator on the part, provided with several degrees of freedom and a motorized conveyor of the room, with a number of degrees of freedom lower than those of the applicator.
• the position of the room in the reference of the cabin is controlled by the position of
• the invention in fact takes into account the fact that the conveyor of each cell is an autonomous and rustic conveyor formed for example by a roller table.
• the degrees of freedom of the room in the cabin are those of the conveyor, allowing the advance, the stop and the recoil of this conveyor.
• one or two directions of rotation of the part can be added around a vertical pivot perpendicular to the directions of movement of the base conveyor. In any case, it is necessary to keep the conveyor part in the cabin the simplest for ease of maintenance.
• the servocontrol of the conveyor motor at the position of the applicator also has the advantage of treating parts of different geometries in the same paint booth.
• each cabin comprises two independent conveyors, driven by the applicator, which makes it possible to optimize the cycle times.
• the paint installation according to the invention lends itself to advantageous modularization. Indeed, the sweeping air requirements are sufficiently reduced so that the facility for reprocessing this air including its separation - release - from the paint, can be contained in a cabin base of dimensions writable in horizontal dimensions of the cabin so that the cabin and its base are an autonomous unit inscribed in a substantially parallelepiped frame in which may also be included the air transfer ducts recycled between the base and the upper distributor.
• FIG. 1 is a horizontal sectional diagram of a cabin of the state of the art
• FIG. 2 is a diagram of a cabin in horizontal section according to the installation according to the invention.
• FIG. 3 is a diagram in vertical section of a cabin according to the installation of the invention.
• FIG. 4 is a horizontal cross-sectional diagram of two adjacent cabins in accordance with the installation according to the invention.
• FIG. 1 shows a painting booth 1 limited by the vertical partitions 2 with an inlet 3 and an outlet 4. Inside this booth, There is a paint robot 5 which has five or six degrees of freedom and pores at its end an applicator (not shown) such as a spray gun or rotary paint spraying bowl. This spraying is generally done in an electrostatic field so as to create a first confinement of the jet, the droplets tending to follow the field lines between the applicator which is at a positive voltage and the object to be painted which is at the mass.
• an applicator such as a spray gun or rotary paint spraying bowl.
• the object to be painted is carried by a support 6 which has been introduced into the cabin by the inlet 3 and which is secured to a conveyor 7 internal to the cabin, to move the carrier ⁇ inside of the cabin in the direction A of circulation of objects in the line.
• the robot 5 of the applicator is housed in a recess 8 and its deflection angle is represented by the angle D in FIG. 1. This is the angle required for this robot so that the applicator can perform the task. all the work that has been requested since the piece to be painted enters the cabin until it comes out.
• This deflection angle to which are added of course all the necessary extensions of the robot arm to carry out the application of the paint, define an area of the space contaminated by the paint which is not applied to the object. to paint.
• This zone defines the location of the vertical partitions 2 of the cabin inside which a vertical flow of air is organized to precisely collect the contaminating paint particles. It has been realized that by arranging the relative movement of the applicator and the workpiece in a manner different from what exists at the present time and in particular by using the degrees of freedom of the carrier conveyor of the workpiece. better than they are used At the moment (walking, stopping or continuous running), it is possible to reduce the risk of this contamination zone and at the same time to reduce the size of the cabins and therefore the flow of sweeping air necessary for their proper functioning.
• FIG. 2 illustrates a painting booth 10 made in accordance with the invention.
• This servocontrol can for example consist of matching each point of the trajectory. 1 applicator in the reference in the cabin a point of the trajectory of the conveyor of this mark. It is thus possible to reduce the useful length of a cabin and thus to reduce the horizontal section. It is also possible to take advantage of the reduction in the amplitude of this angle D to modify the position of the applicator robot 5 by placing it in particular at an angle of the cabin as illustrated in FIG.
• the angle D 2 is not the minimum that could be achieved by applying the means of the invention, but constitutes a compromise between this minimum value and the value D of the state of the art by means of which it was also possible to reduce the width of the cabin.
• FIG 2 there is shown vertical walls 2a and 2b which form truncations of converging and divergent cab angles. These walls 2a and 2b may comprise openings for opening access openings inside the cabin or at the head of ap- application of the robot Windows 2c_ can be provided on the other parts of the walls 2.
• FIG. 2 also shows the support 6 of an object to be painted 9 and the servo-control means U of the operation of a motor 11 for driving the conveyor 7 to the position in the space of the applicator robot 5.
• the conveyor 7 is actually formed of two motorized conveyors 7a and 7b with two motors 11 and 12, the support 6 being secured to the conveyor 7a while a support 13 succeeding the support 6 is secured to the conveyor 7b.
• the motor 12 of the conveyor 7b is also operatively controlled by the programmable unit 10 at the position of the applicator robot 5.
• FIG. 3 a cabin 10 according to FIG. 2 is shown in vertical section. It can be seen that this cabin bounded by the walls 2 has in the upper part a distributor 14 for blowing air and in the lower part a unit 15 of washing of this blowing air to rid it of the paint particles which it carries, this unit 15 being connected on the one hand to tanks 16 for the recovery of the paint and the agents which carry it and on the other hand to a installation 17a, 17b of treatment and recycling of the blowing air which can be extended towards the distributor 14 superior.
• a single conveyor 7 is shown in this figure and that it comprises a means 18 allowing a variation of the orientation of the support 6 of the object to be painted around a vertical axis 19.
• FIG. 4 finally, we find some of the elements already described with the same references.
• Two successive cabins 21 and 31 are shown here, each of which has two applicator robots such as 25a and 25b for the cab 21 and 35a and 35b for the cab 31 arranged in mirror with respect to a plane of symmetry. Longitudinal parallel to the running direction of the parts 9. With these lined robots, it is possible to process in a cabin two times more parts in the same cycle time while optimizing the horizontal section of the cabin.
• each upright 40 being connectable to a corresponding upright of an adjacent module, each module comprising, as illustrated in FIG. 3, a cabin, an upper blower distributor , a blown-in air handling unit with paint separator
• this processing unit forming the underbody of the cabin and the module also comprising conduits 41 for recycling treated air in the underbody in the direction the upper distributor.

Landscapes

• Engineering & Computer Science (AREA)
• Robotics (AREA)
• Spray Control Apparatus (AREA)
• Application Of Or Painting With Fluid Materials (AREA)
• Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
• Coating Apparatus (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=36118299

Family Applications (1)

Country Status (5)

Families Citing this family (3)

Family Cites Families (9)

• 2005
  • 2005-09-07 FR FR0509140A patent/FR2890323B1/fr not_active Expired - Fee Related
• 2006
  • 2006-08-29 EP EP06794366A patent/EP1922152A1/de not_active Withdrawn
  • 2006-08-29 US US12/066,086 patent/US20080271670A1/en not_active Abandoned
  • 2006-08-29 WO PCT/FR2006/002000 patent/WO2007028873A1/fr active Application Filing
  • 2006-08-29 CN CNA2006800327159A patent/CN101272867A/zh active Pending

Non-Patent Citations (1)

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