Automatic material receiving mechanism of printing machine

The utility model relates to the field of printing machines, in particular to an automatic material receiving mechanism of a printing machine, which comprises a rack, a transmission mechanism, a winding mechanism and a transmission mechanism, a feeding roller is arranged on the rack, the transmission mechanism comprises a driving roller, a rotating shaft and a first motor, the rotating shaft is arranged on the rack, the driving roller is fixedly sleeved on the rotating shaft, and the first motor is connected with the end portion of the rotating shaft. The transmission mechanism comprises a rotating disc and a belt transmission assembly driving the rotating disc to rotate, the rotating disc is arranged on the rotating shaft in a sleeving mode, the rolling mechanisms comprise air cylinders, telescopic rods and limiting blocks, the air cylinders are fixed to the rotating disc, the limiting blocks are fixed to the tops of the telescopic rods, and rolling paper tubes are arranged in the limiting blocks. When windi