Solenoid controller for color changer
OwnerHans Vetters, Michael Baumanninventors
Life of this patent
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Abstract
The paint and rinsing-agent valves of a paint changer for connection of a number of paint lines for coating material of different, selectable paints with an application element are pilot-controlled pneumatically by a compressed air line common for all valves and placed permanently under pressure, and switched by attached electronically controlled electromagnetic valves. The electronic control takes placed by means of a field bus system electronically interfaced with each of the paint and rinsing-agent valves.
Claims11
A paint transfer-valve device for connecting a number of paint lines for coating material of different, selectable paints with an application element, said device comprising:
- a central paint conduit for supplying the coating material to be supplied to the application element;
- a plurality controllable valves fluidly connected to said paint conduit for providing the selectable paints from the paint lines to said conduit;
- an external electronic control system for actuating said controllable valves at desired intervals;
- said controllable valves of said paint transfer-valve device being equipped with electromagnetic valves units connectable to said external electronic control system;
- and
- wherein said controllable valves being actuated by compressed gas from a common compressed gas line leading through the paint transfer-valve device to each said controllable valve when signaled by said external electronic control system through said electromagnetic valve units.
A method of controlling a paint transfer-valve device connecting a plurality of paint lines fluidly connected to a source of coating material of different, selectable paints with an application element through a central paint conduit, comprising the steps of:
- providing a plurality of controllable valve units fluidly connected to said central paint conduit and being pneumatically actuated by compressed gas, said controllable valve units receiving pressurized gas from common gas line;
- actuating said controllable valve units with electronically controlled electromagnets integrated with said paint transfer-valve device thereby providing paint to said central paint conduit.
Dependencies are inferred from the claim text.