Paperboard cutting device capable of stably cutting

The invention relates to the technical field of corrugated board cutting devices and discloses a paperboard cutting device capable of stably cutting. The paperboard cutting device capable of stably cutting comprises a lathe frame. The lathe frame is rotatably connected with a conveyor belt. The side face of the lathe frame is fixedly connected with a motor. The outer side of the motor is fixedly connected with a transmission gear I. The side, far away from the motor, of the transmission gear I is fixedly connected with a transmission gear II. The end, far away from the transmission gear I, ofthe transmission gear II is fixedly connected with a rotary rod. The top end of the rotary rod is fixedly connected with a rotating wheel. The surface of the rotating wheel is fixedly connected with aspring. The surfaces of conveying rolling wheels are fixedly connected with the conveyor belt. When the rotating wheel rotates reversely, ratchet wheels are arranged inside the conveying rolling wheels, limiting blocks are no