Automatic powder metering device

The utility model discloses an automatic powder metering device, which comprises three groups of mounting racks and a support, a metering funnel is arranged in the support, three groups of weighing sensors are fixedly connected to the upper end of the support, a discharge valve is arranged at the discharge end of the metering funnel, two groups of bin wall vibrators are arranged at the discharge end of the metering funnel, and the bin wall vibrators are arranged on the mounting racks. And the lower end of the metering hopper is fixedly connected with a material receiving container, the upper ends of the three sets of mounting frames are fixedly connected with feeding hoppers, the lower ends of the three sets of feeding hoppers are fixedly connected with spiral feeding machines, and one ends of the three sets of spiral feeding machines are fixedly connected with discharging pipes. According to the automatic powder metering device, through the arrangement of the spiral feeding machine, the discharging pipe, the