Bottle supply machine stable in conveying

The utility model discloses a bottle supply machine stable in conveying, and relates to the technical field of bottle supply machines. The conveying device comprises a mounting frame, a mounting groove and a conveying belt, the mounting groove is formed in the upper surface of the mounting frame, a driving shaft is arranged at one end in the mounting groove, a driven shaft is arranged at the other end in the mounting groove, the conveying belt is embedded in the circumferential side faces of the driving shaft and the driven shaft, mounting plates are mounted on the two opposite surfaces of the mounting frame, and the two mounting plates are of an L-shaped plate body structure. A plurality of electric push rods are mounted at one ends of the two mounting plates, mounting blocks are mounted at one ends of the electric push rods, placing grooves are formed in one surfaces of the two mounting blocks, and a plurality of connecting shafts are embedded in the two placing grooves. By means of the structure of the ins