| 摘要 |
The invention provides a closure chuck usable with a capping machine for mounting an insertion closure on a possibly misaligned flange around an opening in a container. In the preferred embodiment, the closure chuck has an upper chuck portion attachable to the capping machine, a lower chuck portion for holding the insertion closure, a connecting assembly connecting the lower chuck portion to the upper chuck portion in a spaced apart relationship, and resilient means. The connecting assembly transmits axially directed force from the upper chuck portion to the lower chuck portion, and allows rocking movement of the lower chuck portion relative to the upper chuck portion to properly align the insertion closure with the flange. The resilient means biases the lower chuck portion to a neutral position in which the lower chuck portion is aligned with the upper chuck portion.
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