Double-conveying head transmission mechanism of GD121 cigarette making machine

The utility model belongs to a facility for conveying cigarettes from a cigarette making machine to a nozzle receiving machine in a tobacco machine and particularly relates to a double-conveying head transmission mechanism of a GD121 cigarette making machine. The double-conveying head transmission mechanism has the improvements that a double-faced cog belt and the tooth-shaped surfaces of a corresponding driving wheel, a corresponding driven wheel and a corresponding tensioning wheel are provided with arc-shaped teeth, the teeth adjacent to the rear surfaces of point contact teeth which are just meshed are in surface contact meshing, and the teeth adjacent to the rear surfaces of the point contact teeth which are just demeshed are in surface contact meshing. The double-conveying head transmission mechanism is simple in structure and reasonable in stress, dispenses with frequent replacement of multiple parts, and can be used for greatly reducing the choking phenomenon of a cigarette transferring device and pro