Method and apparatus for forming container with profiled bottom
AssigneeRedicon Corporation
InventorsJoseph D. Bulso, Jr., James A. McClung
Life of this patent
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Abstract
A method of forming a container body having a profiled bottom in a continuous operation wherein the body is formed from a blank of material into an inverted cup, the cup is reverse drawn and a preliminary profile is imparted to the bottom of the cup, and a final profile is imparted. The apparatus includes a die cut edge movable into telescoping relationship around a redraw die to form the inverted cup and a profile punch movable into telescoping relationship within the redraw die to form the preliminary profile against a profile pad. The profile pad is selectively supported by a pair of fluidly actuated pistons whereby, upon activation of the second piston, the final profile may be formed.
Claims5
Apparatus for forming a container body in a double acting press having inner and outer slides and a fixed base, comprising:
- (A) a punch carried by the inner slide;
- (B) a die cut edge carried by the outer slide;
- (C) a profile pad carried by the base;
- (D) first and second fluidly actuated pistons carried by the base for selectively supporting said profile pad;
- (E) a redraw die fixed to said base and disposed concentrically with respect to said profile pad;
- (F) said die cut edge being movable toward said base to form an inverted cup by wiping a blank of material over said redraw die;
- (G) said punch being movable toward said base a predetermined distance to force the bottom of the inverted cup against said profile pad with said first piston supporting said profile pad;
- and
- (H) said punch being further movable toward said base a further distance to reverse said inverted cup by drawing over said redraw die with said profile pad being supported by said first and second pistons.
Dependencies are inferred from the claim text.