Combinatorial weighing apparatus with check weigher

摘要

A combinatorial weighing apparatus combines weight data from a plurality of weighing machines, finds a combination of weights giving a weight sum equal or closest to a target weight value within an allowable weight range setting, and discharges articles from the weighing machines providing the combination of weights. The combinatorial weighing apparatus includes a reweighing device for reweighing the discharged articles. The reweighing device is composed of a checking hopper for retaining the discharged articles and a checking weighing machine attached to the checking hopper for reweighing the articles in the checking hopper. The combinatorial weighing apparatus further includes a display unit for displaying the reweighed result and a selection unit for accepting or rejecting the articles based on the reweighed data to prevent those articles giving a total weight outside the allowable weight range setting from being delivered to a packing machine.