B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 22/21 (2006.01)
Patent
CA 2739984
Can shells are produced with tooling installed on a single action mechanical press, and the tooling includes an upper retainer supporting a blank and draw die enclosing an outer pressure sleeve and an inner pressure sleeve surrounding a die center punch, all having air actuated pistons. The die center piston has an air reservoir connected by air passages which form air springs for the inner pressure sleeve, and the outer pressure sleeve receives the same controllable air as the reservoir or low pressure plant air supply. The inner pressure sleeve has a projecting nose portion which initiates the drawing of a cup and has contoured surfaces which mate with corresponding surfaces on a die core ring to form and clamp the chuckwall of the shell during downstroke of the press. A lower panel punch forms the center panel, panel wall and countersink of the shell during upstroke of the press.
Les enveloppes de canette sont produites à laide dun outillage installé sur une presse mécanique à simple effet, et loutillage comprend un dispositif de retenue supérieur soutenant une matrice de poinçonnage et demboutissage renfermant une gaine de pression extérieure et une gaine de pression intérieure entourant un poinçon central de matrice, tous comportant des pistons à commande pneumatique. Le piston central de matrice possède un réservoir dair relié par des passages dair qui forment des ressorts pneumatiques pour la gaine de pression intérieure, et la gaine de pression extérieure reçoit le même air pouvant être régulé que le réservoir ou lalimentation en air basse pression. La gaine de pression intérieure comporte une partie nez en saillie qui met en uvre lemboutissage dune coupe et comporte des surfaces profilées qui semboîtent dans des surfaces correspondantes situées sur un anneau central de matrice pour former et serrer la paroi de lenveloppe pendant la course descendante de la presse. Un poinçon de panneau inférieur forme le panneau central, la paroi de panneau et la fraisure de lenveloppe au cours de la course ascendante de la presse.
Container Development Ltd.
Finlayson & Singlehurst
LandOfFree
Method and apparatus for forming a can shell does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for forming a can shell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for forming a can shell will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1501746