Method and apparatus for filling bulk material
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United States of America Patent
Stats
-
Dec 14, 1999
Grant Date -
N/A
app pub date -
Jun 10, 1998
filing date -
Dec 12, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method and apparatus for filling bulk material, in which an objective filling weight for filling bulk material stored in a storage portion of a filling object is divided to a first stage objective filling weight and a second a second stage objective filling weight. The method consists of setting an opening/closing mechanism provided on the storage portion to a predetermined opening degree and filling the bulk material from the storage portion to the filling object until the first stage objective filling weight is reached, and then activating the opening/closing mechanism so as to close from the predetermined opening degree. A closing travel distance of the opening/closing mechanism in a certain minute time interval, and a filling weight of bulk material are then detected, and based on these detected values, the fluidity of the bulk material in such a minute time interval is calculated. A closing travel distance and a closing travel speed of the opening/closing mechanism in a next minute time interval is then calculated based on the fluidity so as to activate the opening/closing mechanism to close thereby filling the bulk material to the filling object until the objective filling weight is reached.
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