Patent ID: 6918493
Filing Date: 2005-07-19
Classification: B07C,B30B,Y10S

Abstract:
1. An apparatus for singling out tablets for a rotary tablet-compressing press which includes a rotor with a plurality of dies for pressing tablets in the dies by associated rams during rotation of the rotor, the apparatus comprising control means to control the function of the rotary press and the quality of the tablets, and rejection means which reject non-acceptable tablets, the rejection means including a nozzle which, via a line and a controllable valve disposed in the line is adapted to be connected to a pressure source in order to route a tablet into a rejection duct, the valve being operated by a control signal of the control means, a pressure sensor ( 24 ) being disposed in the line which delivers a sensor signal if the valve is opened or a pre-determined minimum pressure prevails in the line, respectively, and a logic evaluation circuit being provided into which the pressure signal and the control signal are input and which produces a feedback signal for the control means, the feedback signal being indicative of the time relation of the control signal and the sensor signal, and the control means generating an error signal if the time relation of the control signal and the sensor signal deviates from a pre-determined relation.