Rotary supporting device of brick machine

The utility model is applicable to the technical field of assistance for brick machines, and discloses a rotary supporting device for a brick machine, which comprises a processing frame and a rotary frame, a rotary motor is fixedly mounted at the top of the inner side of the processing frame, and the bottom of a transmission shaft of the rotary motor is fixedly connected with the top of the rotary frame. The upper end and the lower end of the pushing rod are connected with the lifting plate and the limiting plate through the rotating shaft respectively, so that when the rotating motor operates to drive the rotary frame to rotate and machine, the rotating lead screw can be driven to rotate synchronously, and the lifting sleeve connected with the surface of the rotating lead screw in a sleeving mode moves vertically; and then corresponding pushing force is provided for the pushing rod, so that the two sets of limiting plates can move synchronously and oppositely, to-be-machined bricks of different sizes are sub