B - Operations – Transporting – 30 – B
Patent
B - Operations, Transporting
30
B
18/1120
B30B 11/02 (2006.01)
Patent
CA 1136368
ABSTRACT OF THE DISCLOSURE An improvement for a press, more particularly a press for compacting powder material, provided with a mechanical toggle mechanism actuated ram disposed above the die supporting bed or table of the press. The mech- anical toggle mechanism is in turn actuated by the press drive. The pivot support for the ram upper toggle arm is independently reciprocated by a fluid cylinder activated in timed relationship with the mechanical toggle action such as to provide reciprocation of the ram independently of or in addition to the reciprocation caused by the toggle mechanism. Adjustable abutment means are provided for adjustably setting the extreme positions of the fluid cylinder reciprocating member. A method for compacting the powder material into an article comprises the steps of, pouring the powder material in a die cavity formed above a lower punch disposed in the die cavity, retracting the lower punch to a small distance, introducing an upper punch into the die cavity, advancing the lower punch towards the upper punch and advancing the upper punch towards the lower punch at a rate greater than the advance of the lower punch, and extracting the compacted article from the die cavity by holding it between the upper and lower punch.
324819
Michaels & Associates
Ptx-Pentronix,inc.
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