Connecting rod mechanism and turn-up drum

The utility model provides a connecting rod mechanism and a turn-up drum. The connecting rod mechanism comprises a driving assembly, wherein at least one part of the driving assembly can move in the horizontal direction; a first connecting assembly; the number of the first connecting assemblies is multiple, the number of the second connecting assemblies is multiple, the multiple first connecting assemblies and the multiple second connecting assemblies are arranged in the circumferential direction of the driving assembly, and the first connecting assemblies and the second connecting assemblies can move in the horizontal direction along with the driving assembly; the supporting plate assembly comprises a plurality of supporting plates, a circle is defined by the supporting plates, the different supporting plates are connected with the different first connecting assemblies or the different second connecting assemblies respectively, and when the diameter of the circle defined by the supporting plates reaches the