Patent ID: 6837280
Filing Date: 2005-01-04
Classification: A61J,B65B

Abstract:
1. A unit ( 6 ) for checking the dosing of pharmaceutical material (M) in a capsule filling machine ( 1 ) for the production of capsules (CF) of the type with a capsule lid (C) and a capsule body (F), the machine ( 1 ) comprising a fixed structure ( 15 ) fitted with a rotary drum ( 2 ) for supporting a plurality of capsules (CF) on its edge, opening each capsule (CF) by separating the capsule lid (C) from the capsule body (F), filling the capsule body (F) with a dose (DS) of material (M), then closing the capsule body (F) again with the relative capsule lid (C); the rotary drum ( 2 ) having a tank ( 5 ) containing the pharmaceutical material (M) and supporting a plurality of doser elements ( 3 ), each comprising at least one piston ( 8 ) sliding inside a hollow cylinder ( 4 ) to pick up and compress a dose (DS) of material (M) from the tank ( 5 ) and discharge it into a capsule body (F) of a capsule (CF); the unit ( 6 ) being characterised in that it comprises sensor means ( 9 ) attached to each piston ( 8 ) for detecting a piston ( 8 ) thrust value (V; V 1 ) on the dose (DS); transmitter means ( 10 ) connected to the sensor means ( 9 ) for transmitting the value (V; V 1 ) to a receiver element ( 11 ; 41 ) by the telemetric transmission of a relative signal (S; S 1 ), said receiver element ( 11 ; 41 ) being fixed on the machine ( 1 ) in at least one zone (P 1 ; P 2 ) of the fixed structure ( 15 ); there also being power supply means ( 12 , 14 a ) for cyclically activating the sensor means ( 9 ) and the transmitter means ( 10 ) during drum ( 2 ) rotation.