SBS (Styrene Butadiene Styrene) feeding metering device

The utility model relates to the technical field of modified asphalt production, in particular to an SBS (styrene-butadiene-styrene) feeding metering device which comprises a frame body and a weighing device arranged on the frame body, the frame body comprises a base, a feeding port, a rotating groove, a group of vertical plates, a group of bottom plates and a stepping motor plate, the feeding port and the rotating groove penetrate through the base, the vertical plates, the bottom plates and the stepping motor plate are arranged on the base, and the rotating groove is located on one side of the feeding port. The set of vertical plates and the set of bottom plates are located at the upper end and the bottom end of the base respectively, the weighing device comprises a feeding hopper arranged between the set of vertical plates, a gear arranged at one end of the feeding hopper, a stepping motor arranged on a stepping motor plate, a sliding plate arranged on the set of bottom plates and a T-shaped rack arranged o