Concrete mixing device for roof shell plate

The concrete stirring device comprises a box body and a second motor, material mixing rods are fixedly connected to the periphery of an inner cavity of the box body, notches are formed in the left end and the right end of the top of the box body, limiting sliding grooves are formed in the front side and the rear side of an inner cavity of each notch, and the limiting sliding grooves are connected with the second motor. And a movable block is arranged at one end of the inner side of the notch, limiting sliding blocks are fixedly connected to the front side and the rear side of the movable block correspondingly, balls are arranged at the tops and the bottoms of the limiting sliding blocks correspondingly, a first motor is fixedly installed at one end of the top of the movable block, and a rotating shaft is fixedly connected to the output end of the first motor. Through the action of the first motor, the rotating shaft, the stirring blades, the second motor, the circulating roller, the guide sliding block, the g