Patent ID: 8162650
Filing Date: 2012-04-24
Classification: B30B

Abstract:
1. A filling apparatus for a rotary tablet press, which itself being arranged stationarily is associated to a circulating die plate of a rotor of the tablet press, with a filling chamber, which features an upper inlet opening for powder-shaped compression material and a filling opening aligned with die bores of the die plate, and with a conveying means in the filling chamber driven by a drive motor, characterized in that one single filling wheel ( 56 ) is rotatably mounted around a vertical axis in the filling chamber, which has plural wings ( 60 ) on the perimeter, spaced apart in the perimeter direction, which sweep over the filling opening upon rotation of the filling wheel ( 56 ), and that the inlet opening ( 64 ) is arranged in a distance above the filling wheel ( 56 ), centered with the axis of the filling wheel ( 56 ), and that a distance is provided between the filling wheel ( 56 ) and an upper wall of the filling chamber ( 36 ) at least in the segment assigned to the filling opening, in order to form a flow channel portion wherein the filling opening is lengthened to a bow-shaped channel ( 44 ) in the bottom of the filling chamber, which is aligned to the pitch circle of the die bores ( 22 ) and which extends beyond the filling chamber ( 36 ) opposite to the rotational direction of the die plate ( 14 ), and which forms a pre-filling channel ( 44 ) outside of the filling chamber ( 36 ) and wherein the pre-filling channel ( 44 ) is open at its end.