Mortar pre-mixing device for machine-made sand concrete

The utility model relates to a machine-made sand concrete mortar premixing device which comprises a stirring kettle, a stirring assembly, a driving mechanism and a rack, the stirring kettle is obliquely arranged on the rack, a feeding port is formed in the top of the stirring kettle, and a discharging port is formed in the bottom of the stirring kettle; the stirring assembly comprises a stirring shaft, a stirring rod and stirring blades, the stirring shaft is arranged in the stirring kettle, the axis of the stirring shaft coincides with the axis of the stirring kettle, and the stirring blades are arranged on the outer side of the stirring shaft in a spiral belt shape in a surrounding mode in the axial direction and fixedly connected with the stirring shaft through the stirring rod; the driving mechanism is arranged at the top of the stirring kettle, the top end of the stirring shaft is connected with the output end of the driving mechanism, and the driving mechanism is used for driving the stirring shaft to r