Carnaudmetalbox Plc

Carnaudmetalbox (Holdings) USA Inc.

Brian Hill

Paul Porucznik

Christopher F Cheers

Ian Flude

A die for the toolpack of a wall-ironing apparatus for forming metal cans is laterally displaceable for accommodating misalignment of the wall-ironing punch from its central axis. Restoring force to return the die to its own central position is provided by pneumatically operated biassing elements. For increasing the restoring force available, those biassing elements which are on the upstream side of lateral die movement are rendered ineffective on the die by engagement with stops located at the central die position. Usually, as described, the die is one of a pair of dies coupled for lateral movement together.

Production of metal containers

A press having a frame, a tool support 41 mounted on the frame, a ram 8 movable toward and away from the tool support, and a blank holder 20 surrounding the ram for movement towards and away from the tool support by a crosshead 21 has a crosshead plate 45 guided during motion towards and away from the tool support by pillars 42, 43 operably engaged with the tool support. The blank holder is adjustable to align with the tool support 20 and ram 8.

Presses for drawing a hollow article

Three balance mechanisms for a press machine are described. The first balance mechanism for a press machine comprises a balance weight 91 mounted on a crankshaft 86 of the press machine, a balance weight 92 mounted on a balance mechanism shaft 93, a motor for rotating the shaft 93 and a control system for the motor. The control system ensures that the balance mechanism shaft 93 rotates in the opposite direction to, but at the same speed as, crankshaft 86. The balance weights 91 and 92 balance the primary shaking forces which arise in the press machine along the axis of movement of its ram 83. In the second balance mechanism, balance weights are mounted on two separate shafts rotated by a motor and connected by a gear mechanism. In the third balance mechanism, one balance weight is mounted on the crankshaft, another balance weight is mounted on a shaft rotated by a motor, and a further pair of balance weights are mounted on a pair of shafts rotated by a motor at twice crankshaft speed.

Growing community of inventors

Wiltshire, United Kingdom

Brian Hill