This innovative concept is an energy saving & cost effective, high production & highly suitable for long draw depth components i.e. Geyser body etc. As shown below, the top die is attached to the slide. The lower die is mounted on the press bed with the blank holder. The punch is located in an opening in the center of the press bed on the draw cushion cylinder.
In this operation, once again, a single Action press with a draw
cushion is used. Pushing deformation, the blank holding force is
transferred via the slide from above & the draw punch force acts
from below through the active draw cushion. The punch forms the post by
means of its upward movement while the blank holder rests on the die.
The active Counter drawing combines the advantages of static blank
holding & the low power usage of double action dies with the
advantage of a single Action die. Admittedly, it is necessary to
have a special modification of the dies for performing this operation,
since the forces operate in the opposite direction to those of a normal
single action deep drawing press with draw cushion. Thus, these dies can
not be installed in a normal single Action press.