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US 2007/0164480 A1Published application
Device and method for monitoring the production of tablets in a rotary press
AssigneeFette GmbH
InventorsIngo Schmidt, Werner Seifert
Life of this patent
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AssigneeFette GmbH
InventorsIngo Schmidt, Werner Seifert
Estimating the term…
Device for monitoring the production of tablets in a rotary press, with die bores in a circular die plate for the accommodation of a powder to be pressed, upper- and lower stamps, a pressing station for pressing the powder in the die bores by means of the upper and lower stamps, a tablet stripper for stripping off the tablets ejected by the lower stamps from the upper side of the circular die plate and a machine computer, wherein a contactless working temperature measurement device, being in communication with the machine computer, with a measurement plane between the pressing station and the tablet stripper, is arranged in the press room of the rotary press, and the measurement time of the temperature measurement device is such that at least some of the tablets per rotation of the circular die plate can be established in their temperature.
Device for monitoring the production of tablets in a rotary press, with die bores in a circular die plate for the accommodation of a powder to be pressed, upper- and lower stamps, a pressing station for pressing the powder in the die bores by means of the upper and lower stamps, a tablet stripper for stripping off the tablets ejected by the lower stamps from the upper side of the circular die plate and a machine computer, characterised in that a contactless working temperature measurement device, being in communication with the machine computer (44), with a measurement plane between the pressing station (24, 26) and the tablet stripper (38), is arranged in the press room of the rotary press, and the measurement time of the temperature measurement device is such that at least some of the tablets per rotation of the circular die plate can be established in their temperature.
Method for monitoring the production of tablets in a rotary press, which has a rotor with upper and lower stamps, circular die plate, cam system for the stamps, at least one pressing station and a filling system for the powder-shaped pressing material in a press room, characterised in that with the aid of a contactless working temperature sensor having a short temperature acquirement time, the temperature of the tablets is measured in the press room, after the upper stamps have left the die, wherein the temperature is measured for at least some of the tablets per rotation of the rotor, position signals for the die are created with the aid of a position transmitter for determining a temperature measurement position, the temperature data are set into a relation to the temperature measurement position, and the maximum temperature of the tablets is established by means of a cooling characteristics of the tablets, the point in time of temperature measurement and the point in time of the pressing.
Dependencies are inferred from the claim text.