| 摘要 |
A double action tooling press apparatus for forming a beverage can lid has a longitudinal axis, an inner tooling assembly, and an outer tooling assembly. The inner tooling assembly is positioned about the longitudinal axis and has a downwardly extending stem. The stem has an upper segment having a free end and a separate lower segment having a proximal end. The proximal end is in operative communication with, but is not joined to, the lower free end of the upper segment. An opposing distal end is joined to a punch core tool. The outer tooling assembly is positioned about the longitudinal axis and has a passageway through which a portion of the stem passes, a chamber in which the proximal end of the lower segment of the stem resides and traverses upwardly and downwardly therein, a biasing means within the chamber for biasing the lower segment of the stem in an upward position, and a circumferential tooling assembly. The circumferential tooling assembly has a first tool having an annular contacting surface and a void defined by an elongated circumferential sidewall, an upper pressure sleeve located radially inwardly of the annular contacting surface of the blank punch and within the void defined by the inner surface of the elongated circumferential sidewall of the blank punch, and a second tool within the upper pressure sleeve and encircling the punch core tool.
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