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US 10,376,913 B2Granted
System for spraying the inside of can bodies
AssigneeCrown Packaging Technology, Inc.
InventorMichael Jonathan Coates
Life of this patent
Estimating the term…
Abstract
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.
Claims7
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, the indexing device being mounted to a main frame;
- 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, the hub being a static machine element which is mounted to the main frame such that the hub is rotatably fixed relative to the main frame, the hub being positioned about a center of the main rotary turret, the main rotary turret being rotatable relative to the hub;
- and constant mesh gearing connects the ring gear to a vacuum chuck drive motor, such that each vacuum chuck is configured to be driven independently of the main rotary turret.
4 more elements
Dependencies are inferred from the claim text.