Patent ID: 8011410

Claim:
A driving mechanism for a labeling machine, comprising a driving wheel connecting to a power source of an electric motor, a base, a linking member, a driving arm assembly, an axle assembly and a set of dust guarding plates, wherein: the base is fastened to a chassis of the labeling machine through an angular post; the linking member is located on and runs through the base and includes a set of shafts, a set of transmission wheels and a belt; the shaft having one end coupling with the transmission wheel and the other end running through the base from a rear side thereof; the belt is coupled with the transmission wheel; the driving wheel is located on the power source and coupled with the belt of the linking member; the driving arm assembly is mounted onto the base and includes two corresponding front rocking arms, two corresponding rear rocking arms and a gear set; the gear set including two transmission gears, two linking gears and two axle gears; the two front rocking arms having one end run through by the shaft of each linking member to form fixed fastening, the shaft having the other end coupled with the transmission wheel, and the transmission wheels engage with each other; the front rocking arms having other end coupled with one end of the rear rocking arms through the shaft of the linking gears, the linking gears engaging with the transmission gears, the axle gears are located on the other end of the rear rocking arms and engaged with the linking gears; the axle assembly is fixedly coupled with the axle gears of the driving arm assembly; and the dust guarding plates are thin sheets surrounding the base to prevent external material and dust from entering the driving arm assembly.