Roll-to-roll rewinding machine

The utility model relates to the technical field of rewinder, in particular to a reel-to-reel rewinder which comprises a rewinder body. Connecting shafts are coaxially fixed to the two ends of the material collecting roller correspondingly, and the connecting shafts are detachably installed on the vertical rods through connecting assemblies. Comprising a fixing seat connected with a vertical rod, and a detachable clamping block is installed at a notch of the fixing seat; a lower clamping groove is formed in the notch of the fixing base, an upper clamping groove is formed in the bottom face of the clamping block, and the connecting shaft is rotationally installed between the lower clamping groove and the upper clamping groove. Through the arranged connecting assembly, when the material collecting roller needs to be disassembled, a locking bolt is unscrewed to enable the tail end of the locking bolt to be separated from a clamping groove, the limitation of the locking bolt on an inserting rod can be relieved, u