Patent ID: 8028651
Filing Date: 2011-10-04
Classification: B05B,B05C

Abstract:
1. A metering system for a coating installation for coating components, comprising: an applicator configured to apply the coating material at a discharge quantity metered according to at least one predetermined value, a first metering device configured to adjust the pressure or the volumetric flow of the coating material applied by the applicator as a function of setpoints which are specified for it by automated installation controls, a transducer for generating a setpoint which matches the pressure or the volumetric flow of the coating material flowing to the applicator, and a control device for regulating the metering device as a function of the specified setpoints and of a measurement of the transducer, wherein a second metering device is connected at the outlet of the first metering device for the coating material flowing to the applicator which, for the precision metering of the applied coating material, regulates its pressure or volumetric flow as a function of the specified setpoints; wherein the first metering device and the second metering device which serves for fine metering are each controlled by a dedicated control circuit configured to compare a measured value corresponding to the pressure or the volumetric flow of the coating material flowing to the applicator with the at least one predetermined desired value; and wherein the second metering device includes a piston unit containing a movable piston, by way of whose cylinder chamber adjacent the piston the coating material flows as it is being taken to the applicator, and wherein the piston is configured to be moved by a drive mechanism regulated by the control device to correct the specified pressure or volumetric flow value in the event of deviations from the setpoints.