| 摘要 |
PURPOSE:To accurately perform bagging operation and at the same time prevent apparatus breakdown from occurring by obtaining a moved distance per unit time of an actuator after passing in the neighborhood of one terminal position and by effecting the subsequent operation considering that the actuator has reached the terminal position when the moved distance falls below a preset value. CONSTITUTION:Fork sensors S3 and S4, when on, judges that a discharge outlet 33 is inserted normally into an unhulled rice bag 2, reads the output of a potentiometer 56 and, when the output value thereof reaches VR6, decides whether or not a change amount dVR/dt per unit time of the output value falls below a preset amount unitl the output value reaches VR2. Here, the output values VR2 and VR6 are a standard output value of the potentiometer 56 when an actuator 52 moves in positions P2 and P6. When the actuator 52 normally reaches a terminal position P2 and a shutter 32 is fully opened, a chain motor M1 is reversely rotated until the actuator 52 reaches a stand-by position P5. Grains are discharged from a hopper 31 into the unhulled rice bag 2 and, on being filled up, an unhulled rice sensor S5 provided at the discharge outlet 33 is turned on, the chain motor M1 is reversely rotated. |
