Weighing scales – Computer – Electrical
Patent
1998-12-01
1999-11-09
Gibson, Randy W.
Weighing scales
Computer
Electrical
G01G 1300
Patent
active
059818824
ABSTRACT:
A quantitative charging apparatus of the present invention comprises a large charging storage cup and a plurality of additive storage cups having different capacity ratios in which articles are filled with even cupfuls. The capacity of the large charging storage cup is set so as to store the articles having a weight which is smaller than and close to a target weight. The articles within the large charging storage cup is weighed by a load cell to obtain a large charging weight, and the weights of the articles within the additive storage cups are weighed by other load cells. A control device finds, as an underweight, the difference between the large charging weight and the target weight, and selects the suitable combination of the additive storage cups having capacities which are close to the underweight. The articles within the selected additive storage cups are supplied into a container together with the articles within the large charging storage cup through a chute. In addition, a plurality of additive auxiliary cups may be provided. In this case, if the maximum capacity of the additive storage cups is Vmax, the reference value of the bulk density of the articles is d, and the maximum dispersion ratio of the bulk densities is Z, the capacities of the additive storage cups and additive auxiliary cups are determined in such a manner that the total weight of the articles within the additive auxiliary cups is the closest to 2ZdVmax.
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Gibson Randy W.
Yamato Scale Co. Ltd.
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