Multinozzle block for spraying tool surfaces
AssigneeRegie Nationale des Usines Renault
InventorHenri Poret
Life of this patent
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Abstract
Automatic and reproducible spraying of liquid materials on complex tool surfaces is attained through a multinozzle spraying block, traversed by supply passages for the spray material and the air for spraying, and comprising, on at least one of its faces, a series of valves provided with elastic obturating membranes and with pneumatic logic control, programming and communication of the spray material supply passages with the spray air outlets of the nozzles grouped on at least one of the block faces. Application of the multinozzle spraying block to automatic treatment is achieved by spraying materials on tool surfaces under constant conditions on repetitive-cycle machines.
Claims4
A multinozzle block for spraying the surfaces of tools, said block being traversed by first and second passages for supplying spray materials and spraying air, respectively,
- a group of valves disposed on at least one of the faces of said block;
- elastic obturating membranes being disposed in each of said valves,
- outlets for spraying air and materials in said block connected to said first and second passages
- pneumatic logic control means for putting said first and second passages in programmed fluidic communication with said outlets for spraying air and materials through operation of said obturating membranes of said valves,
- nozzles grouped on at least one of the other faces of said block and communicating with respective outlets for spraying air and materials, and
- means for purging and washing said first and second passages comprising a built-in rinsing system having a rinsing liquid supply passage separate from said first and second passages in programmed fluidic communication with said passages by at least one of said valves with an elastic obturating membrane and communicating via at least one other valve of said valves with an elastic obturating membrane, under pneumatic logic control, with said passages.
Dependencies are inferred from the claim text.