Printing machine for self-adhesive labels

The utility model relates to the field of label printing, in particular to a self-adhesive label printing machine which comprises a printing platform and a printing device, the printing device is arranged on the printing platform and used for printing label paper, and a feeding mechanism is arranged on the printing platform. The feeding mechanism comprises a rotating shaft which is rotationally connected to the upper portion of the printing platform and horizontally arranged, clamping assemblies arranged in pairs are connected to the rotating shaft, each clamping assembly comprises a fixing block and a clamping plate, the fixing blocks and the clamping plates penetrate through the rotating shaft and are slidably connected to the rotating shaft, the clamping plates are connected to the fixing blocks, connecting assemblies are arranged on the fixing blocks, and the connecting assemblies are connected to the rotating shaft. The connecting assembly is used for enabling the fixing block to rotate along with the ro