Metropolitan Computing Corporation

Michael Levin

Lev Tsygan

Semen Dukler

Rotary press machine including dies, pairs of upper and lower punches with a part of each lower punch being movable in a respective die to selectively enable formation of a cavity in the die, a feeding system for feeding powder material into the cavities, when present, in a feeding stage, a pressing system for pressing the upper and lower punches together in a pressing stage and a tablet ejection system for ejecting formed tablets from the dies in a tablet ejection stage. The upper and lower punches are rotated sequentially through the feeding stage, the pressing stage and the tablet ejection stage to thereby enable formation of tablets if powder material is feed into the cavities in the dies. To enable selective formation of tablets and thereby optimize production thereof, an adjustment mechanism is provided and enables selective formation of the cavities in the dies.

System and method for optimizing tablet formation by a rotary press machine

This disclosure concerns an apparatus and methods for reproducing compaction and ejection events in a plurality of press machines. Each press machine has at least one die opening wherein a compound is placed to be compressed at least once between upper and lower punches sliding inside the said die whereupon the compressed compound is ejected from the die cavity. The apparatus and methods ensure that the plurality of compression and ejection events have the same exact speed, profile curvature, and pressure or force as on any pre-specified press machine by matching the timing and geometrical path of the punch movements as well as the depth of fill of the die. The linear speed of the punches is matched by a computer controlling the programmable motor of the die carrier. The path protiles of the punches are matched mechanically by means of interchangeable rollers and cams with the predefined geometry. The pressure or forces of the matching events are controlled and adjusted by means of the positioning of the lower punch in the die.

Press simulation apparatus and methods

An apparatus for reproducing compaction and ejection events in a plurality of press machines is disclosed. Each press machine has at least one die opening wherein a compound is placed to be compressed at least once between upper and lower punches sliding inside the said die whereupon the compressed compound is ejected from the die cavity. The apparatus and methods ensure that the plurality of compression and ejection events have the same exact speed, profile curvature, and pressure or force as on any pre-specified press machine by matching the timing and geometrical path of the punch movements as well as the depth of fill of the die. The linear speed of the punches is matched by a computer controlling the programmable motor of the die carrier. The path profiles of the punches are matched mechanically by means of interchangeable rollers and cams with the predefined geometry. The pressure or forces of the matching events are controlled and adjusted by means of the positioning of the lower punch in the die.

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West Orange, NJ, United States of America

Michael Levin