Patent ID: 8801421
Filing Date: 2014-08-12
Classification: B30B

Abstract:
1. An apparatus for forming a powdery material into tablets, comprising: two rolls for compressing powdery material to form the tablets, wherein the rolls have a cylindrical shape and are arranged in the same direction, and can rotate toward their inner sides, wherein both rolls have a plurality of cavities for forming tablets, which are disposed on the outer surfaces of the rolls, means for rotating the rolls, means for controlling the speeds of the outer surfaces of the two rolls so that the speed of the outer surface of one roll of the two rolls is faster than the speed of the outer surface of the other roll of the two rolls, whereby each roll having the plurality of cavities acts as an independent device for forming the tablets of the powdery material, and an auxiliary roll having a cylindrical shape disposed on the surface of the one roll, that rotates faster than that of the other roll, wherein the auxiliary roll is arranged in the same direction as that of the one roll, and means for rotating the auxiliary roll so that the speed of the outer surface of the auxiliary roll is faster than the speed of the outer surface of the one roll, wherein the auxiliary roll is arranged so that the outer surface of the auxiliary roll faces that of the one roll and rotates in the opposite direction of that of the one roll.