| 摘要 |
PROBLEM TO BE SOLVED: To provide a polishing and lifting/feeding device that prevents game balls in a lifting/feeding duct from flowing back and that prevents an excessive load from being applied to a conveyor belt when game balls are supplied nonuniformly.SOLUTION: A polishing and lifting/feeding device 9 includes: an endless conveyor belt 10; a polishing cloth 11 for wiping off stains on the surface of game balls; and a lifting/feeding duct 18 for lifting/feeding game balls flown out of the conveyance surface of the conveyor belt 10. To the game balls having entered between the conveyance surface of the conveyor belt 10 and the polishing cloth 11, lifting/feeding force in the lifting/feeding duct 18 is applied when the conveyor belt 10 is turned while wiping off stains on the surface with the polishing cloth 11. The device is equipped with: a body-side reverse flow prevention means 14 arranged between the end of the conveyor belt 10 and the lifting/feeding duct 18 to prevent reverse flow of game balls; and a lifting/feeding duct-side reverse flow prevention means 19 arranged on the side of the lifting/feeding duct 18 to prevent reverse flow of the game balls. |
