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US 5,854,446 AGranted
Combinational weighing or counting method and apparatus therefor with highly accurate combination result
AssigneeIshida Co., Ltd.
InventorsMasahiko Tatsuoka, Toshiyuki Komatsu
Life of this patent
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Abstract
In a combinational weighing apparatus or a combinational counting apparatus, in order to obtain a combinational weighing result generally equal to or close to the target combined value, different values are employed for target supply values T.sub.i to which articles are to be supplied into respective weighing hoppers 6.sub.i.
Claims17
A combinational weighing or counting method which comprises the steps of:
- driving a plurality of driving feeders for supplying articles from an upstream side into a plurality of weighing hoppers according to a predetermined parameter for controlling a supply ability of the driving feeder;
- determining a new parameter for each of the driving feeders on the basis of a target supply value for each weighing hopper, to which the respective weighing hopper is supplied with the articles, and a measured weight of the articles supplied into each weighing hopper;
- and
- selecting a combination of the articles on the basis of the measured values and a target combined value, some or all of the target supply values for the respective weighing hoppers being chosen to be of values different from each other so that some or all of the measured weights of the articles in the weighing hoppers fall in values different from each other.
1 more element
A combinational weighing or counting apparatus comprising:
- a plurality of weighing hoppers;
- a plurality of driving feeders for supplying articles from an upstream side towards the corresponding weighing hoppers;
- a feeder drive control for driving the driving feeders for supplying articles to the weighing hoppers according to predetermined parameter;
- a parameter setting means for setting a new parameter for each of the driving feeders on the basis of a target supply value for each weighing hoper, to which the respective weighing hopper is supplied with the articles, and a measured weight of the articles supplied into each weighing hopper;
- a combination control means for selecting a combination of the measured weights of the articles supplied into the weighing hoppers on the basis of the measured values and a target combined value;
- and
- a target supply value calculating means for setting some or all of the target supply values for the respective weighing hoppers to be of values different from each other so that some or all of the measured weights of the articles in the weighing hoppers fall in values different from each other.
4 more elements
A combinational weighing or counting method which comprises the steps of:
- driving a plurality of driving feeders for supplying articles from an upstream side into a plurality of weighing hoppers according to a predetermined parameter for controlling a supply ability of the driving feeder;
- determining a new parameter for each of the driving feeders on the basis of a target supply value for each weighing hopper, to which the respective weighing hopper is supplied with the articles, and a measured weight of the articles supplied into each weighing hopper;
- and
- selecting a combination of the articles on the basis of the measured values and a target combined value, all of the target supply values for the respective weighing hoppers being chosen to be of values different from each other, wherein all of the target supply values T.sub.i to T.sub.n are of the values different from each other and determined so as to satisfy the following relationship;
- T.sub.i+1 -T.sub.i =T.sub.1 -T.sub.i-1
- wherein T.sub.i represents a target supply value to which an arbitrarily chosen number of the weighing hoppers is supplied with the articles and T.sub.i+1 and T.sub.i-1 represent target supply values greater and smaller, respectively, than the target supply value T.sub.i and closest to the target supply value T.sub.i.
3 more elements
A combinational weighing or counting apparatus comprising:
- a plurality of weighing hoppers;
- a plurality of driving feeders for supplying articles from an upstream side towards the corresponding weighing hoppers;
- a feeder drive control for driving the driving feeders for supplying articles to the weighing hoppers according to a predetermined parameter;
- a parameter setting means for setting a new parameter for each of the driving feeders on the basis of a target supply value for each weighing hopper, to which the respective weighing hopper is supplied with the articles, and a measured weight of he articles supplied into each weighing hopper;
- a combination control means for selecting a combination of the measured weights of the articles supplied into the weighing hoppers on the basis of the measured values and a target combined value;
- and
- a target supply value calculating means for setting all of the target supply values for the respective weighing hoppers to be of values different from each other, wherein all of the target supply values T.sub.i to Y.sub.n are of values different from each other and wherein the target supply value calculating means determines target supply values T.sub.i to T.sub.n for the respective weighing hoppers so as to satisfy the following relationship:
- T.sub.i+1 -T.sub.i =T.sub.i-1
- wherein T.sub.i represents a target supply value to which an arbitrarily chosen number of the weighing hoppers is supplied with the articles and T.sub.i+1 and T.sub.i-1 represent target supply values greater and smaller, respectively, than the target supply value T.sub.i and closest the target supply value T.sub.i.
6 more elements
A combinational weighing or counting apparatus comprising:
- a plurality of weighing hoppers;
- a plurality of driving feeders for supplying articles from an upstream aide towards the corresponding weighing hoppers;
- a feeder drive control for driving the driving feeders for supplying articles to the weighing hoppers according to a predetermined parameter;
- a parameter setting means for setting a new parameter for each of the driving feeders on the basis of a target supply value for each weighing hopper, to which the respective weighing hopper is supplied with the articles, and a measured weight if the articles supplied into each weighing hopper;
- a combination control means for selecting a combination of the measured weights of the articles supplied into the weighing hoppers on the basis of the measured values and a target combined value;
- a target supply value storage means for storing the target supply value for each weighing hopper, and
- a target supply calculating means for calculating the target supply value for each weighing hopper on the basis of the target combined value so that some or all of the measured weights of the articles in the weighing hoppers fall in values different from each others.
4 more elements
A combinational weighing or counting apparatus comprising:
- a plurality of weighing hoppers;
- a plurality of driving feeders for supplying articles from an upstream side towards the corresponding weighing hoppers;
- a feeder drive control for driving the driving feeders for supplying articles of the weighing hoppers according to a predetermined parameter;
- a parameter setting means for setting a new parameter for each of the driving feeders on the basis of the target supply value for each weighing hopper, to which the respective weighing hopper is supplied with the articles, and a measured weight of the articles supplied into each weighing hopper;
- a combination control means for selecting a combination of the measured weights of the articles supplied into the weighing hoppers on the basis of the measured values and a target combined value;
- and
- an average measured value calculating means for calculating, for each of the weighing hoppers, an average value of the measured weights of the articles which have previously been supplied into the weighing hoppers during previous weighing cycles;
- a standard parameter setting for determining a standard parameter, which is used as a reference for a new parameter, on the basis of excess or shortage of the amount of supply of the articles as a result of comparison between the average measured value and the target supply value;
- a deviation determining means for determining, on the basis of the measured weights of the articles which have previously been supplied into the weighing hoppers during previous weighing cycles, excess or shortage of a degree of deviation of each of the measured weights;
- and
- a deviated parameter calculating means for calculating, for each of the weighing hoppers, a new parameter on the basis of the standard parameter and the excess or shortage of the degree of deviation so that some or all of the measured weights of the articles in the weighing hoppers all in values different from each other.
8 more elements
Dependencies are inferred from the claim text.