Workpiece conveyor with barrel cams including a dwell period for a decorating machine

摘要

The traveling motion imparted to bottles in an intermittent motion decorating machine is provided by a pair of workpiece feed cams rotatably supported in a side-by-side relation to rotate about spaced horizontal axes lying in a common horizontal plane, the workpiece feed cams have feed cam tracks extending along the decorator between loading and unloading stations for receiving cam followers of each of plurality of bottle carriers. The feed cam track defining a workpiece dwell period at each decorating station and workpiece advancement periods between each workpiece dwell period. A pair of carrier return cams is rotatably supported in a side-by-side relation to rotate about spaced horizontal axes lying in a common horizontal plane. The carrier return cams have carrier cam tracks extending along the decorator for returning bottle carriers received from the unloading station for delivery to the loading station. Carrier transfer members at each of opposite ends of the workpiece feed cams and the carrier return cams transfer bottle carriers from the workpiece feed cams at the unloading station to carrier return cams and transfer bottle carriers from the carrier return cams to the workpiece feed cams at the loading station. A drive rotates the workpiece feed cams, carrier return cams and carrier transfer members.