Method of and apparatus for forming a closure

Details Method of and apparatus for forming a closure Method of and apparatus for forming a closure

B - Operations, Transporting

65

B

B65B 7/01 (2006.01) B21D 51/44 (2006.01)

Patent

CA 2589742

A method and apparatus for forming a closure in which the closure includes a peelable panel with integral tab folded over the panel. The apparatus includes upper and lower reform tools, the upper reform tool having a tab relief feature and local scallops at each end of the tab relief. When reform tools move together for reforming, the tab relief feature is positioned over the tab fold and the scallops at the ends of the fold. As a result crushing and fracture of the tab during reforming is avoided.

L'invention porte sur un procédé et un appareil qui permettent de former une fermeture, la fermeture comprenant un panneau pelable muni d'un onglet intégré replié sur le panneau. L'appareil comprend un outil de formage supérieur et un outil de formage inférieur, l'outil de formage supérieur comprenant un élément de dépouille d'onglet et des échancrures locales à chaque extrémité de la dépouille d'onglet. Lorsque les outils de formage se rapprochent pour le formage, l'élément de dépouille d'onglet se place au-dessus du pli de l'onglet et les échancrures aux extrémités du pli, protégeant de la sorte l'onglet contre tout écrasement ou fracture au cours du formage.

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