Manufacture of closures for food containers

Details Manufacture of closures for food containers Manufacture of closures for food containers

B - Operations, Transporting

29

C

B29C 70/80 (2006.01) B21D 51/46 (2006.01) B29C 43/18 (2006.01)

Patent

CA 2761664

An apparatus and method for the manufacture of closures, which are used for closing containers such as glass jars for food. During manufacture, it is essential that sealing compound is prevented from ingress onto the centre of the closure as such ingress could lead to possible contamination of the food. The sealing apparatus and, in particular, the sealing punch of the present invention have features which achieve this control.

L'invention porte sur un appareil et sur un procédé pour la fabrication de fermetures, lesquelles sont utilisées pour fermer des récipients tels que des bocaux en verre pour aliment. Durant la fabrication, il est essentiel qu'un composé d'étanchéité soit empêché d'entrer sur le centre de la fermeture, car cette entrée pourrait produire une contamination éventuelle de l'aliment. L'appareil d'étanchéité, et, en particulier, le poinçon d'étanchéité, selon la présente invention, ont des caractéristiques qui permettent ce contrôle.

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