Patent ID: 8764912

Claim:
A nozzle cleaning device for cleaning a dispensing nozzle, comprising: a storage tank having an opening portion into which the dispensing nozzle is inserted; a discharge tube connected to a bottom portion of the storage tank; a first valve; a second valve; a cleaning liquid supply tank connected to the storage tank through at least one nozzle section above the opening portion and at least one nozzle section below the opening portion, wherein the at least one nozzle section above the opening portion is connected to the cleaning liquid supply tank and the first valve and the at least one nozzle section below the opening portion is connected to the cleaning liquid supply tank and the second valve; and an overflow tank into which cleaning liquid overflows from the storage tank; and a controlling section configured to: open the first and second valves to supply a cleaning liquid from the cleaning liquid supply tank to the storage tank through the at least one nozzle section above the opening portion and the at least one nozzle section below the opening portion, wherein the cleaning liquid overflows from the storage tank to the overflow tank; lower the dispensing nozzle into the storage tank through the opening portion to clean an outer wall surface of the dispensing nozzle; close the first and second valves to stop the supply of the cleaning liquid to the storage tank after the outer wall surface of the dispensing nozzle is clean; and raise the dispensing nozzle from the storage tank.