Paper printing and drying device

The invention provides a paper printing and drying device, and relates to a printing and drying device, the paper printing and drying device comprises at least two groups of replacement roller frames and a group of production frames used for being butted with the replacement roller frames, winding rollers, unwinding rollers, two groups of tensioning rollers and extrusion rollers are mounted on the replacement roller frames, and the tensioning rollers are pushed by a pushing cylinder to slide between the replacement roller frames and the production frames. The winding roller, the unwinding roller, the tensioning roller and the extrusion roller are concentrated on the replacement roller frames, the printing machine and the drying machine are arranged on the production frame, and replacement of the winding roller and the unwinding roller is completed in the printing and drying machining process in the mode that the multiple sets of replacement roller frames and one set of production frame are alternately combine