Roll up convertible activity of chain machine and turn round a set device

The utility model discloses a roll up convertible activity of chain machine and turn round a set device, including transmission box and spool, it is connected with the spool to cup joint the transmission through the connection on the external side casing of transmission case, the fixed dish of turning round has been cup jointed to spool one end, it is connected with the chaining axle to fix to turn round to coil, the other end of spool has cup jointed the gland through the transition, be connected with the movable dish of turning round through rectifying the positive axial rotation on the outside casing that the transition is overlapped, and the movable other end of turning round the dish is connected with the other end of chaining axle. The utility model discloses in, in general use whenat first traditional book chain machine unloads roll is that the dish is turned round in the manual work activity of pulling out away to unload the book, heavier because the dish is turned round in the activity, artifical plu