| 摘要 |
PURPOSE:To uniform the life of an opening/closing mechanism for hoppers and to improve the durability by counting the use frequency of every metering data and using metering data with a low frequency of use preferentially as data used for combinatorial arithmetic. CONSTITUTION:A controller 11 controls the driving of a dispersion feeder 3 and a supply feeder 4 and the opening and closing operation of pool hoppers 10 and metering hoppers 5, and also converts the metering signal of a metering mechanism 6 into weight to perform combinational arithmetic, and a hopper selection part 12 decides a combination. Counters 7 corresponding to the numbers of respective metering data are connected to the selection part 12 and counters 7 for the numbers of metering data selected as a combination are driven to count their frequencies. A deciding part 8 is connected to the counters 7 and decides the frequency of every counter 7 to determine the priority order. In this case, the probability that data with high priority are selected as a combination is high, so data with low frequencies are given priority to combine the data uniformly. |
