Importance

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Abstract

A combination weighing apparatus (1) according an embodiment includes: a conveyance unit (2, 3₁ to 3_n) that conveys articles (M) given from an outside; a plurality of weighing hoppers (6₁ to 6_n) that temporarily store the articles (M) conveyed by the conveyance unit (2, 3₁ to 3_n) and then discharge the articles (M) downstream; a weighing unit (7₁ to 7_n) that weighs a weight value of the article (M) stored in each of the plurality of weighing hoppers (6₁ to 6_n); and a control unit (20) that performs combination calculation based on a plurality of the weight values measured by the weighing unit (7₁ to 7_n) and a target value (X) and discharges a specific article (M) selected by the combination calculation from the weighing hopper (6₁ to 6_n), wherein the control unit (20): multiplies an average weight (m) value per unit number of articles (M) within a predetermined period by the number (C) of articles (M), calculates a multiplication result closest to the target value (X) from among results of the multiplication as a reference weight value (T_cm), and performs predetermined processing based on a difference between the target value (X) and the reference weight value (T_cm).

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First Claim