| 摘要 |
PROBLEM TO BE SOLVED: To provide a hulling sorter which can automatically switch a circulation/discharge switching valve after starting a hulling operation, and in which an operator can optionally manually switch the circulation/discharge valve.SOLUTION: A hulling sorter comprises: a hulling part (1); a falling hulled rice winnowing part (2); and an oscillation screening plate type mixed rice screening part (3). When a control lever (32) is shifted from an initial position (43a) to a first operation position (43b), an unhulled rice supply control valve (31) is opened, an oscillation on-off clutch (49a) is turned on, and a circulation/discharge switching valve (36) is switched over to a machine-inside circulation to carry out a hulling and sorting operation. And when a prescribed timing after starting the hulling and sorting operation, the circulation/discharge switching valve (36) is switched from a circulation side to a discharge side. When the control lever (32) is shifted from the first operation position (43b) to a second operation position (43c), the circulation/discharge switching valve (36) is switched from the circulation side to the discharge side even if it does not reach the prescribed timing after starting the hulling and sorting operation. |
