SYSTEM FOR SPRAYING THE INSIDE OF CAN BODIES

摘要

A system for spraying a coating such as lacquer on the internal surface of a can body (2) comprising vacuum chuck gears (42) for each vacuum chuck (16). The vacuum chucks hold the can body as it rotates about a main process turret (10) and to a spray station (32, 34). A ring gear rotates independently of main turret rotation and further gearing connects the ring gear to a vacuum chuck drive motor (11). The spray system provides tight process control and allows flexibility of process revolutions or use of higher machine production speed.

主权项

1. A system for spraying the inside of can bodies comprising:
a spray station and a main rotary turret, the main rotary turret being connected to and driven by an indexing device; one or more spray guns on a spray gun support frame; and vacuum chucks arranged circumferentially around the turret for holding can bodies; wherein each vacuum chuck has a vacuum chuck gear and each vacuum chuck gear is in constant mesh with a ring gear; the ring gear being rotatably mounted on a hub and the hub being a static machine element which is mounted to a main frame and is positioned about a centre of the main rotary turret; and constant mesh gearing connects the ring gear to a vacuum chuck drive motor.