Reshaping of containers

Details Reshaping of containers Reshaping of containers

1997-09-04

1998-11-03

Jones, David

Metal deforming

By application of fluent medium, or energy field

With actuated tool engaging work

72 62, B21D 2602

Patent

active

058292900

ABSTRACT:
A method and apparatus for the reshaping of containers is described. A mold having at least three parts is used to hold the container blank. Pressurized air supplied to the cavity of the container causes it to expand to take on the shape of the mold chamber. Whilst this operation is taking place, the mold parts move towards each other under the action of pistons which load both ends of the mold and container, thus preventing longitudinal tension in the container wall. The mold parts are initially spaced from each other by gaps or split lines which are reduced by the movement of the mold parts towards each other but are never completely closed up.

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