Combination weighing and counting apparatus

A combination weighing and counting apparatus which comprises:

• a plurality of vibrating feeders for transporting articles;
• a plurality of weighing hoppers each operable to measure a weight of the articles supplied from the corresponding vibrating feeder;
• a combination selecting means for combining weights or numbers of the articles supplied to the weighing hoppers and for selecting a combination of the articles which falls within a tolerance range;
• and
• a feeder drive control means for driving substantially half of the vibrating feeders at a driving phase opposite to the remaining vibrating feeders;
• wherein said combination selecting means is operable to select the combination of the weighing hoppers so that the driving phases of the vibrating feeders that supply the articles to the weighing hoppers which have been selected to discharge the articles are brought into a result of the driving phases of some of the vibrating feeders being opposite to those of the remaining vibrating feeders.

A combination weighing and counting apparatus which comprises:

• a plurality of vibrating feeders for transporting articles;
• a plurality of weighing hoppers each operable to measure a weight of the articles supplied from the corresponding vibrating feeder;
• a combination selecting means for combining weights or numbers of the articles supplied to the weighing hoppers and for selecting a combination of the articles which falls within a tolerance range;
• and
• a feeder drive control means for driving the vibrating feeders such that the driving phases of the vibrating feeders that supply the articles to the weighing hoppers which have been selected to discharge the articles are brought into a result of the driving phases of some of the vibrating feeders being opposite to those of the remaining vibrating feeders.