Automatic mixing and proportioning device in concrete stirring process and proportioning method thereof

The invention discloses an automatic mixing and proportioning device in a concrete mixing process and a proportioning method thereof.The automatic mixing and proportioning device comprises a bottom plate, a spiral conveyor is arranged at the top of the bottom plate, weighing sensors are fixedly connected to the four corners of the bottom of the spiral conveyor, and the bottoms of the weighing sensors are fixedly connected to the top of the bottom plate; and the left side of the bottom plate is fixedly connected with a perforated plate. The controller intelligently controls the speed reducing motor, the transmission motor and the electromagnetic valve, then the speed reducing motor discharges various raw materials in the raw material box into the spiral conveyor according to the proportion, and finally the transmission motor drives the stirring rod to mix the various materials in the spiral conveyor. The screw conveyor can convey mixed materials into the concrete mixer in time, the advantage of facilitating ra