FOREIGN MATTER DISCHARGE METHOD IN EMPTY CAN

PROBLEM TO BE SOLVED: To surely discharge foreign matters in an empty can together with a treating liquid by filling the treating liquid such as water, warm water or hot water into the empty can, they turning the empty can upside down to discharge the treating liquid, in a transfer path transporting the vacant can. SOLUTION: The empty can 1 is transported with a transportation conveyor 2 and when presence of the empty can 1 is sensed with a sensor ahead of a empty can washing treating part 3, respective nozzles of the empty can washing treating part 3 start to operate. At a foreign matter discharge part 5, water is ejected through plural pieces of filling nozzles 8 and water is filled into the empty can 1 and simultaneously water is ejected through plural balance nozzles 9 too. Also water is ejected through plural pieces of propelling nozzles 10 and the empty can 1 can be smoothly transported. The vacant can 1 filled with water is turned upside down at a shoot part of a transfer path and the filled water is discharged, and later the inside of the empty can 1 is rinsed at a rinsing part 11 and besides drained at a draining part 13, then again turned upside down at the shoot part and in a state that an opening part is made upside, the empty can 1 is transported and fed to a filling machine of the contents.