Stable conveying device for full-automatic printing production line of ultra-wide floor film

The utility model discloses an ultra-wide floor film full-automatic printing production line stable conveying device which comprises a printing machine body and a printing ink groove arranged on the printing machine body, a printing machine body base and the bottom end face of the printing ink groove are symmetrically provided with a main double-trunnion seat and an auxiliary double-trunnion seat respectively, and an assembly and disassembly assembly is arranged between the printing ink groove and the auxiliary double-trunnion seat. The main double-trunnion seat and the auxiliary double-trunnion seat are both movably connected with supporting rods, a two-way screw is rotationally arranged on the printing machine body, the two-way screw is symmetrically sleeved with movable sliding sleeves, the two end faces of each movable sliding sleeve are both provided with connecting double-trunnion seats, the connecting double-trunnion seats are movably connected with the supporting rods, and a gear motor is arranged at