Can end, tooling for manufacture of the can end and seaming...

Details Can end, tooling for manufacture of the can end and seaming... Can end, tooling for manufacture of the can end and seaming...

B - Operations, Transporting

21

D

B21D 51/44 (2006.01) B21D 51/32 (2006.01) B21D 51/38 (2006.01)

Patent

CA 2504251

A can end (10) is provided that has a three part chuck wall (20). The first chuck wall (14) has an angle of 20~ to 35~ as measured from an axis (28) perpendicular to the can end (10). The second chuck wall (16) has an angle of 4~ to 27~ as measured from the axis (28). The third chuck wall (18) has an angle of 18~ to 32~ as measured from the axis (28). Tooling (30) adapted to manufacture the can end (10) is also provided. Additionally, a seaming chuck (50) is provided that has a recess (56) that is adapted to avoid contact with radii of curvature along the chuck wall (20) during seaming of the can end (10) to a can body (60).

L'invention concerne une extrémité de canette (10) comportant une paroi de mandrin (20) en trois parties. La première paroi de mandrin (14) présente un angle de 20· à 35· mesuré par rapport à un axe (28) perpendiculaire à l'extrémité de canette (10). La deuxième paroi de mandrin (16) présente un angle de 4· à 27· mesuré par rapport à l'axe (28). La troisième paroi de mandrin (18) présente un angle de 18· à 32· mesuré par rapport à l'axe (28). L'invention concerne également des outils (30) de fabrication de ladite extrémité de canette, ainsi qu'un mandrin de sertissage (50) présentant une cavité (56) conçue pour éviter tout contact au moyen d'une courbure le long de la paroi de mandrin (20), lors du sertissage de l'extrémité de canette (10) sur un corps de canette (60).

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