Patent ID: 7000445

Claim:
An apparatus for forming a cup used in forming an elongated container comprising: (A) a draw-redraw station comprising (1) one or more slides carrying (a) a punch shell; (b) an axially movable pressure sleeve located radially inward of said punch shell; (c) a punch core riser, a punch core mounted on said punch core riser with said punch core located radially inward of said pressure sleeve; and (2) a fixed base carrying (a) a cut edge; (b) a pressure pad located radially inward of said cut edge; (c) a die core ring located radially inward of said pressure pad; and (d) a die core which is a bore located radially inward of said die core ring; (3) said punch shell being movable toward said base to blank material inserted into said apparatus against said cut edge and being movable toward said die core ring to wipe the blank over said die core ring to form an inverted cup; (4) said punch core being movable toward said die core to reverse draw the inverted cup and form the cup in said bore of said die core; (5) said die core ring engaging the material against said punch core during the reverse draw to control metal thickness, wherein said cup is ejected through a bore in a bottom of said base; (6) a coolant passage formed in said punch core riser; and (7) a chiller fluidly connected to said coolant passage, said chiller being adapted to deliver a coolant to said coolant passage, wherein said chiller is adapted to maintain said coolant at a selected temperature.