| 摘要 |
A tablet press machine ( 1 ) includes a fixed casing ( 2 ) which houses a compression assembly ( 3 ) comprising a power-driven rotor ( 4 ) that rotates about an axis ( 5 ), the rotor including a matrix disc ( 6 ) and another two discs ( 7, 8 ) on both sides of it, mounting two sets of reciprocating punches ( 9, 10 ) opposite and aligned with each other in pairs. The matrix disc ( 6 ) has a plurality of through matrixes ( 11 ) where the reciprocating punches ( 9, 10 ) forming each pair are mounted in such a way as to delimit between them an empty space ( 12 ) of variably size designed to contain a dosed quantity of powder to be compressed. Two sets of cams ( 13, 14 ) are associated with the compression assembly ( 3 ) and, as the rotor ( 4 ) rotates, impart on the punches ( 9, 10 ) a driving motion which moves them cyclically towards and away from each other in such a way as to compress the powder contained in the matrix ( 11 ) in the matrix disc ( 6 ). The casing ( 2 ) comprises, inside it, sealed separating means ( 15; 18, 19, 21, 22 ) desigend to delimit separate spaces ( 16, 17, 20 ) for housing the compression assembly ( 3 ) and the sets of cams ( 13; 14 ) in order to prevent the powdered product from contaminating the cams. |
