B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 51/44 (2006.01) B21D 51/38 (2006.01) B65D 17/34 (2006.01)
Patent
CA 2215685
A method of seaming a circular cover panel (1) provided with a turnable pull ring (2) onto the body of a can. The cover panel comprises a circumferential score line (5) as close as possible to the rim portion (6) of said panel. The pull ring (2) on the cover panel used is mounted in a non-radial position on said cover panel (1) with the result that a clearance (<u>a</u>) is provided between the rim portion (6) of the cover panel and the nose (3) of the pull ring, and a clearance (<u>b</u>) is provided between the rim portion (6) of the cover panel and the handle part (2) of the pull ring. As a result, a closing chuck can be inserted in these clearances (<u>a</u>, <u>b</u>) during the seaming of the cover panel. In this manner the seaming operation is very simple and very rational because it is not necessary to use a particular closing chuck, and because the cover panel need not be angularly positioned on the seaming machine before the closing chuck and the cover panel are moved towards each other.
La présente invention concerne un procédé permettant de sertir sur le corps d'une boîte de conserve un panneau couvercle circulaire (1) pourvu d'un anneau d'arrachage (2) rotatif. Ce panneau couvercle comporte en périphérie une ligne de prédécoupe (5) située le plus près possible de la zone de bordure (6) de ce panneau. L'anneau d'arrachage (2) du panneau couvercle utilisé est monté en position non radiale sur ce panneau couvercle (1), ce qui a pour effet de créer un espace (<u>a</u>) entre la zone de bordure (6) du panneau couvercle et le bec (3) de l'anneau d'arrachage, et un espace (<u>b</u>) entre la zone de bordure (6) du panneau couvercle et la partie de manipulation (2) de l'anneau d'arrachage. Il est ainsi possible de faire passer le joint de sertissage par ces espaces (<u>a, b</u>) pendant l'opération de sertissage du panneau couvercle. L'opération de sertissage devient donc très simple et très rationnelle, car il n'est pas besoin d'utiliser de modèle spécifique de joint de sertissage, et que le panneau couvercle ne doit pas nécessairement respecter un angle spécifique par rapport à la sertisseuse avant de présenter le joint de sertissage sur le panneau couvercle.
Glud & Marstrand A/s
Macrae & Co.
LandOfFree
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