Rotating assembly and curling machine

The invention discloses a rotating assembly and a curling machine, and relates to the technical field of product curling, the rotating assembly comprises a rotating driving motor which drives a first curling die and a second curling die to rotate and work through a transmission chain, and the transmission chain is composed of a plurality of chain ring assemblies which are connected through connecting assemblies; each chain ring assembly comprises two chain ring plates connected through a fixed connecting cylinder, each connecting assembly comprises two connecting pull plate sets located between the adjacent chain ring assemblies, each connecting pull plate set comprises two connecting pull plates connected through a fixed connecting plate, and a rotating rod rotationally penetrating through the fixed connecting cylinder is connected between the two connecting pull plates. According to the edge curling device, the transmission chain is arranged, so that the rotary driving motor drives the first edge curling di