Fette Gmbh

Wilhelm Fette Gmbh

Fette Compacting Gmbh

Wilheim Fette Gmbh

Ulrich Gathmann

Ingo Schmidt

Joachim Greve

J&uuml;rgen Hinzpeter

J&ouml;rg Reitberger

Jürgen Hinzpeter

Klaus-Peter Preuss

Alexander Oldenburg

Jörg Gaedecke

Werner Seifert

Bernd Malner

Klaus Peter Preuss

Jurgen Hinzpeter

Thomas Pannewitz

Stephan Mallon

Jorg Reitberger

Juergen Hinzpeter

Matthias Meier

Joerg Gaedecke

Enrico Gand

Klaus Peter R&uuml;ssmann

Peter Preuss

Device for calibrating and balancing a measuring device of a tablet press, in particular a rotary tablet press, comprising at least one reference measuring device and at least one control device, wherein interfaces of the control device are connected with interfaces of the measuring device and the reference measuring device, wherein the control device is designed to generate a plurality of reference measurement results and to record the associated measurement values of the measuring device and the reference measuring device, wherein the control device further comprises a comparing device, with which the recorded measurement values of the measuring device and the reference measuring device can be compared with each other, and wherein the control device is designed to balance the measuring device if an impermissible deviation is present between the compared measurement values. The invention also relates to a corresponding method.

Device and method for calibrating and balancing a measuring device of a tablet press

The invention relates to an apparatus for test pressing tablets with at least two layers.

Method and apparatus for test pressing multi-layer tablets or coated tablets

The invention relates to a method for test pressing tablets with at least two layers.

A method for quality surveillance in manufacturing tablets in a rotary tablet press which, in a compression chamber, has a rotor with upper and lower rams, a die-plate, a cam system for the rams, at least one compressing station, and a charging system for the powdered material requiring compression wherein the tablets are checked for chemical and/or mechanical properties, wherein at least some chemical and/or mechanical data of the tablets is obtained by means of a NIR or LIF sensor in the compression chamber after the upper rams have left the dies, after a measuring procedure has been initiated by a machine computer in response to the die positions determined by a position generator relative to the NIR or LIF sensor.

Method and apparatus for quality surveillance during the manufacture of tablets

A method for test pressing tablets by means of a rotary tabletting machine, a rotationally driven rotor which has a series of upper and lower rams, a die-plate with dies with which the rams interact, a control cam system for said rams, and a filling assembly to continuously fill said dies with said rotor rotating, further by means of at least one pressure station at which the material located in said dies is compressed into a tablet, and a measuring device having a plurality of measuring positions which measures at least the compression force applied by said rams and the number of revolutions of said rotor, comprising the process steps of, a pair of rams selected for a single compression procedure is automatically moved to a filling position, a die or limited number of dies is filled with material with said filling assembly removed at least in part and said rotor at stoppage, said rotor is set into rotation subsequently and is sped up such as to have the desired production speed in said pressure station, and said rotor is stopped in said filling position after a revolution and signals or signal sequences of the measuring positions are recorded while the rotor is rotating and are provided to a computer for display and evaluation.

Method for testing pressing tablets

Tabletting machine in the form of a rotary press, includes a rotor accommodating top and bottom stamping dies that cooperate with molds of a mold plate, rotor associated cam segments, and pressure rollers for actuating the stamping dies, a filling equipment, a stripping device for tablets knocked out of the mold and a computing system for controlling the tabletting machine following a predetermined program and for processing data provided by signal transmitters of the tabletting machine, and for monitoring the machine functions. At least a part of the components and/or subassemblies features a transponder having at least one stored identity number, characterizing the components and/or subassemblies. At least one read head connected with the computing system permits the transponder of the component and/or subassembly to be wirelessly read out even in the assembled state. The read-out data can be compared with a predetermined program for the arrangement and/or function of the components and/or subassemblies in the computing system.

Tabletting machine

A tablet-pressing device that includes a tablet press, a control computer configured to drive and regulate the motors of the tablet press, and a service computer which admits the input and output of data for the operation of the tablet press. The tablet press is linked to the control computer via a cable link for high-speed data transfer. The tablet press and the service computer exchange data and control commands via a wireless data link.

Tablet pressing device

An apparatus for singling out tablets for a rotary tablet-compressing press the rotor of which has associated therewith 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 rejects duct wherein the control signals for the valve are produced by a control device, characterized in that the line, between the orifice of the nozzle and the valve, has disposed a pressure sensor which delivers a sensor signal if the valve is opened or a predetermined minimum pressure prevails in the line and a logic evaluation circuit is provided into which the sensor signal and the control signal are input and that an error signal is produced in the evaluation circuit, which signal is evaluated by the control device if the time relation of the control signals and the sensor signals deviates from a predetermined relation.

Apparatus for singling out tablets in a rotary tablet-compressing press

Adjusting method for a rotary tablet press with an angle pulse encoder for evaluating the pressing force course at the individual punches in at least one pressing station

Method for determining the position of a punch of a powder press

A control cabinet for a tablet press including an enclosure having wall, ceiling, and bottom portions of sheet metal, a door which closes an opening of the enclosure wherein a door board attached to the enclosure by means of at least one hinge only consists of two panels of a transparent material with no surrounding border between which a netting of a conductive material is disposed, and a contacting device which electrically connects the netting to a portion of the enclosure.

Control cabinet for a tablet press

Distribution device for a rotary press and process of manufacture

A method for the production monitoring with the manufacture of tablets in a rotary tabletting machine, with a row of upper and lower punches arranged in pairs, which cooperate with matrix bores, in which for each punch pair the maximum of the pressing force is measured, via a preselected number of readings (measuring row) an actual mean value is computed and compared to a nominal mean value and the supply of material to the individual matrix bores (filling degree) is changed when the deviation exceeds a predetermined measure, wherein before forming the mean value those pressing force readings of each measuring row, which significantly deviate with respect to other readings, are eliminated (freak value test).

Method for production monitoring with the manufacture of tablets in a rotary tabletting machine

A method for manufacturing pressed parts from hard metal, ceramic, sintered metal or likewise, in which a part of a charge of a powder-like or granular original material is filled into a pressing mould and is pressed with at least one pressing stamp against a counter surface, wherein the force and the distance of the pressing stamp are measured, and wherein there are the following method steps:

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Hamburg, Germany

Ulrich Gathmann