Patent ID: 9079238
Filing Date: 2015-07-14
Classification: B21D

Abstract:
1. An apparatus for the production of a metal container, the apparatus comprising: a die toolpack adapted to reduce the thickness of a sidewall of the container; a moveable ram adapted for moving relative to the die toolpack; a tubular assembly having a surface that defines a bore and a fluid inlet for passage of a coolant fluid into the bore; a ram guidance assembly adapted for guiding the ram along the bore of the tubular assembly, the surface of the tubular assembly having grooves for passage of the coolant fluid between the surface and around the outside of the ram; seals for minimising leakage of oil into the coolant fluid; and a closed loop coolant system that includes an oil skimmer that separates the oil from the coolant fluid, the closed loop coolant system being dedicated to the apparatus which ensures the isolation of the coolant fluid within the apparatus for the production of a metal container to thereby provide for an indication of progressive seal failure in the apparatus by monitoring if oil is present in the coolant fluid.