Packaging bag making device

The utility model relates to the field of packaging processing equipment, in particular to a packaging bag making device. The device comprises a raw material preparation box, a connecting platform and a bag making machine, a turning cover is arranged at the upper end of the raw material preparation box, an operation opening and a discharging opening are formed in the two ends corresponding to the turning cover, multiple sets of discharging assemblies are arranged at the end, close to the operation opening, in the raw material preparation box, and two sets of material gathering tables are arranged at the end close to the discharging opening; a pressing channel is reserved between the two groups of material gathering tables; a press-fit piece is arranged in the press-fit channel, and the press-fit channel is communicated with the discharge port; the connecting platform is arranged between the discharging port and the bag making machine, and a raw material circulation roller set is arranged on the connecting pla