método para produzir uma extremidade de lata, e, ferramenta para restringir e reformar uma extremidade de lata

摘要

Methods for producing a can end having a moveable portion disposed beneath a tab are disclosed. In one embodiment, a can end having a center panel may be formed. A moveable portion may be formed in the center panel. The moveable portion may be in a downward position after it is formed. The can end may then be restrained such that a portion of the center panel that is adjacent to the moveable portion is unrestrained. While the can end is restrained, the moveable portion may be moved into an upward position.