High-efficiency paperboard packing machine

The utility model relates to the technical field of packaging machines, and discloses a high-efficiency paperboard packaging machine which comprises an operation table, the top of the operation table is fixedly connected with a packaging assembly, the front side of the operation table is fixedly connected with a first motor, the rear side of the output end of the first motor is fixedly connected with a threaded rod, and the periphery of the threaded rod is in threaded connection with a threaded sleeve. A clamping block is fixedly connected to the top of the threaded sleeve, a spring is arranged at the top of the operation table, a clamping block is fixedly connected to the front side of the spring, a second motor is fixedly connected to the interior of the operation table, a rotating shaft is fixedly connected to the output end of the second motor, and a second gear is fixedly connected to the periphery of the rotating shaft. According to the paperboard packaging machine, the motor, the threaded rod, the thre