| 摘要 |
A labeling machine has a rotationally driven wheel on which there are can supporting disks supported for rotation on respective shafts. Each shaft has a gear composed of a circular member having angularly spaced apart rollers that engage in the teeth of stationary cam rings. Consecutive sections of the teeth have increasingly large pitches in the direction of wheel rotation so that by engagement of the rollers in the teeth the rotational velocity of the cans supported on the shafts increases. The label holder is mounted on an arm and is concentric with the axis of the wheel. By unclamping the arm and rotating it to proximity with one of the toothed cam sections, the can will be rotating with a particular peripheral velocity that results in a can of the proper diameter to roll onto a label without any skidding or slipping action such that the label will always be picked up at its leading edge by means of a glue strip which has been previously applied to the can. |
