B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
113/41, 164/88
B21D 51/26 (2006.01) B21D 28/02 (2006.01) B21D 51/38 (2006.01)
Patent
CA 1115202
Abstract of the Disclosure A punch press comprising multi-station, progressive die tooling, for providing metal covers with easy-open closures, is fitted with a work transfer mechanism facilitating successive positioning of the covers, the tooling employing features thereof to precisely locate and align the covers in the respective stations. More especially, in addition to cover operating dies and work supporting members facilitating lateral accommodation and positioning of the covers to avoid unwanted deforming stress therein, correct vertical alignment of the tooling at successive stages to produce the closures is economically assured. In its method aspect the invention consists in suspending can ends in their flanges in pockets of an indexable carrier, providing a die registering feature in each can end, and a die at successive stations of the press for mating with the feature, registrability of the die being accurately assured by relieving pressure between the carrier and each flange immediately preceding die closure whereby the can ends can self adjust their position heightwise and laterally and at the same time avoid undue stress in each cover at die closures thereby minimizing unwanted distortion or deformation.
332006
Grise Frederick G.j.
Kelley John S.
Lovell Walter C.
Grise Frederick G.j.
Kelley John S.
Lovell Walter C.
Swabey Ogilvy Renault
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