Discharging mechanism for plate making machine

The utility model belongs to the technical field of plate-making machines, and particularly relates to a discharging mechanism for a plate-making machine, which comprises a base, the discharging mechanism is arranged above the base, and a plate-making material moving mechanism is fixedly arranged on one side of the discharging mechanism. A driving gear is driven by a first forward and reverse rotation motor to drive a first discharging supporting frame to be lifted, meanwhile, a driven gear is driven by a second forward and reverse rotation motor to drive an overturning supporting frame to be lifted, the driving gear drives the driven gear to rotate, and the transferring condition is provided for next printing plate overturning and transferring; the printing plates are sucked by the vacuum suction cups, so that the printing plates are tightly attached to the overturning supporting frame in the overturning rotating process, after the printing plates enter the material collecting table, the limiting hydraulic c