Combinational weighing machine

Details Combinational weighing machine Combinational weighing machine

1995-12-05

1998-05-26

Gellner, Michael L.

Weighing scales

Computer

Electrical

177 50, 177121, 222 56, G01G 1300

Patent

active

057569398

ABSTRACT:
A combinational weighing machine has articles delivered to a dispersion feeder, distribtuted therefrom to a plurality of weigh hoppers through independently driven radial feeders, and weighed such that a combination of weigh hoppers can be selected and their contents can be discharged together. Vibrations of each radial feeder are controlled by parameter values which are calculated on the basis of the parameter values previously set therefor and the weight of the articles in the corresponding weigh hopper. When the amount of the articles on the dispersion feeder drops abnormally and becomes less than a certain lower limit, the parameter values at the time are stored and, when the amount of the articles on the dispersion feeder returns to normal again, parameter values based on the stored values are used, instead of the previous parameter values, to calculate new parameter values to control the vibrations of the radial feeders.

REFERENCES:
patent: 4708215 (1987-11-01), Nakamura et al.
patent: 4727947 (1988-03-01), Naito
patent: 4762252 (1988-08-01), Hyer et al.
patent: 4811256 (1989-03-01), Yamada et al.
patent: 5074436 (1991-12-01), Inoue

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