To solve the problem where a radical change occurs in the amount of supply or the amount of delivery during supply or delivery and quantitative metering is obstructed, and hence metering accuracy deteriorates when obtaining a specific amount while supplying an object to be metered to a quantitative metering device or when obtaining a specific amount while delivering an object to be metered that has been supplied in advance.
The quantitative metering device that has a device for supplying or delivering an object to be metered and obtains the object to be metered with a target weight is provided with a means for setting the value of the amount of change in allowed weight for supplying or delivering the object to be metered with a copacity within a tolerance, a target weight- setting means, a means for setting the amount of change in the weight of the object to be metered where the amount of change in the object to be metered being metered increases or decreases within the amount of change in the allowed weight as a weight value, a means for making the amount of change in weight invalid when the amount of change in weight exceeding the allowed amount of change in weight occurs, and a means for adding the difference in the weight value that has occurred at that timing up to a point immediately before as an integration value when the amount of change in weight exceeding the allowed amount of change in weight occurs, starting metering when the amount of change in weight is within the allowed amount of change in weight, and ending metering when the integration value matches a target weight value.
YOSHIKAWA AKIO
JPH04250322A | 1992-09-07 | |||
JPH11139563A | 1999-05-25 | |||
JPH10197322A | 1998-07-31 |
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