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    • 5. 发明专利
    • METHOD FOR AUTOMATICALLY CONTROLLING AND WEIGHING DROPPING OBJECT
    • JPS61164120A
    • 1986-07-24
    • JP484985
    • 1985-01-17
    • YONEKEN KKSANKOSHA CO LTD
    • HAYASHI YUTAKAHASHIMOTO SHUICHI
    • G01G13/12
    • PURPOSE:To automatically control the flow rate of a dropping object, by providing a current meter in the dropping course and measuring the dropping speed of the dropping object, and then, adjusting the feeding quantity of a feeding device and the timing of the supply cut of a timing control device. CONSTITUTION:A current meter 11 is provided on the midway of the dropping course 10 of a dropping object 2 and connected with a feeding device 20 and timing control device 13 through a calculation controller 12. Then the dropping speed of the dropping object 2 to be measured by means of the current meter 11 as a measuring point is set in the calculation controller 12. When the dropping object 2 is dropped onto the dropping course 10 through the opening 1a of a hopper 1, the current meter 11 measures the dropping speed of the dropping object 2 and the controller 12 compares the measured value with a set value and calculates a correction value, and then, adjusts the feeding quantity of the feeding device 20. In addition, the controller 12 calculates the correction value of the timing controller 13 from the dropping speed and the difference in height and time between the current meter 11 and a mass calculator 3 and adjusts the timing of supply cut.