| 摘要 |
A gravimetric dosing apparatus includes a support frame, a plurality of loading hoppers for a respective granular material to be dosed, carried by the support frame and provided with a respective discharge outlet and an opening-closing device for their respective discharge outlet. A weighing hopper includes a discharge outlet and an opening and closing device for its respective discharge outlet and arranged in cascade with respect to the loading hoppers to receive from at least two of the hoppers dosed quantities of different granular materials. A support element is articulated to the frame and designed to overhangingly support the weighing hopper. Transducing structure generates output signals proportional to the weight of the material discharged into the weighing hopper. A mixing assembly receives the dosed and weighed granular material, and a program control unit receives input signals from the transducer and program controls the opening-closing devices.
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