Table top combination weigher

摘要

A combination weigher according to an embodiment of the present invention comprises a plurality of weighing conveyors which are manually fed with objects and conveys the objects fed manually; a plurality of weight sensors to correspond to the weighing conveyors to measure weights of the objects; a control section which finds a discharge combination including a combination of the weighing conveyors holding the objects in which a total weight thereof falls within a target weight range, and activates the weighing conveyors selected to make up the discharge combination to convey the objects on the weighing conveyors in a first direction and discharge the objects from the weighing conveyors; and a collecting conveyor which is fed with the objects discharged from the one ends of the weighing conveyors, conveys the objects in a direction, and discharges the objects.

主权项

1. A combination weigher comprising:
a plurality of weighing conveyors which are manually fed with objects in a deactivated state in which the objects are not conveyed, and convey the objects fed manually, each of the plurality of weighing conveyors being bounded by a pair of guide plates arranged to prevent the objects from dropping off either side of the weighing conveyors; a plurality of weight sensors provided to correspond to the weighing conveyors, respectively, to measure weights of the objects held on the weighing conveyors; a combination unit for finding a discharge combination including a combination of the weighing conveyors holding the objects in which a total weight thereof falls within a target weight range, based on weight values of the weight sensors; a weighing conveyor control unit which activates the weighing conveyors selected to make up the discharge combination to convey the objects on the weighing conveyors in a first direction and discharge the objects from one ends of the weighing conveyors; and a collecting conveyor which is fed with the objects discharged from the one ends of the weighing conveyors, conveys the objects in a direction, and discharges the objects, and a control unit which obtains weight values of the plurality of weight sensors at specified time intervals, compares the weight values to a preset loading detected reference value, and determines that the weighing conveyors are holding the objects corresponding to the weight sensors outputting the weight values being equal to or greater than the loading detected reference value; wherein the combination unit finds the discharge combination based on the weight values of the weight sensors corresponding to the weighing conveyors determined as holding the objects, and wherein the collecting conveyor being placed such that a conveying surface thereof is lower than conveying surfaces of the weighing conveyors.