EP2958741A1 - Individual sorting device for sorting tablets, system with such an individual sorting device and with a tableting device, and method for checking an individual sorting device - Google Patents

Individual sorting device for sorting tablets, system with such an individual sorting device and with a tableting device, and method for checking an individual sorting device

Info

Publication number
EP2958741A1
EP2958741A1 EP14702239.6A EP14702239A EP2958741A1 EP 2958741 A1 EP2958741 A1 EP 2958741A1 EP 14702239 A EP14702239 A EP 14702239A EP 2958741 A1 EP2958741 A1 EP 2958741A1
Authority
EP
European Patent Office
Prior art keywords
tablets
press
sorting device
press force
pressing force
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14702239.6A
Other languages
German (de)
French (fr)
Other versions
EP2958741B1 (en
Inventor
Walter Hegel
Arno RATHMANN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korsch AG
Original Assignee
Korsch AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korsch AG filed Critical Korsch AG
Priority to PL14702239T priority Critical patent/PL2958741T3/en
Publication of EP2958741A1 publication Critical patent/EP2958741A1/en
Application granted granted Critical
Publication of EP2958741B1 publication Critical patent/EP2958741B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/34Sorting according to other particular properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07CPOSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/02Measures preceding sorting, e.g. arranging articles in a stream orientating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B11/00Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005Control arrangements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B11/00Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/08Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B30PRESSES
    • B30BPRESSES IN GENERAL
    • B30B15/00Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32Discharging presses
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C3/00Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
    • G07C3/14Quality control systems
    • G07C3/143Finished product quality control

Definitions

  • Single sorting device for sorting tablets system with such a single sorting device and with a tableting device and method for
  • the invention relates to a single sorting device for tablets. Furthermore, the invention relates to a system with such a Einzelortortiervortechnik and with a tabletting device with a plurality of press dies. Finally, the invention relates to a method for checking the proper functioning of a Einzelortortiervortechnik for a tabletting device with press dies.
  • tablets can be sorted out, which do not meet certain quality requirements due to errors in the production process. Tablets can also be removed from the production process by individual sorting for later examinations.
  • Tablets can be produced with so-called tabletting machines.
  • tabletting machines are pharmaceutical rotary presses.
  • a rotary press is known for example from DE 10 2009 020 196.
  • the rotary press has a rotary driven rotor.
  • the rotor revolves in a substantially horizontal plane.
  • the rotor carries a variety of stamp pairs.
  • the stamp pairs each consist of an upper punch and a lower punch.
  • tablet raw material is filled in the space between the upper punch and the lower punch.
  • the stamps then arrive at least one pressure roller unit.
  • the pressure roller unit is connected downstream in the circumferential direction of the rotor.
  • the punches are pressed against each other with pressure. This compacts the material to form the tablet.
  • the punches enter a removal station downstream in the circumferential direction of the rotor. In the removal station, the stamps move apart and the tablet is removed and removed.
  • a tabletting machine may include one or more pressing stations.
  • the tablets may be pre-pressed in a first pressing station and the pre-pressed tablets then finished pressed in a second pressing station.
  • Several individual pressing stations or several groups of pressing stations for pre-pressing and final pressing can be arranged so that each individually presses tablets independently of the other stations or groups, so that several tablets can be produced simultaneously.
  • the actual pressing force with which a tablet was pressed indicates the tablet weight and the reliability of the compression. It is also desirable to produce reliably pressed tablets of as identical weight as possible. An individual sorting therefore compares the actual pressing force with a permissible pressing force interval. Tablets pressed with a pressing force out of the interval are discarded from the single-sorter. Each independent pressing station or group of pressing stations is assigned a single sorting device.
  • the sorting is done for example via a puff of air or a slider. Discarded tablets are directed into a first discharge channel. The remaining tablets are directed into a second discharge channel.
  • the individual sorting device is supplied with a press force signal for this purpose.
  • the press force signal comes from a tabletting machine and can be assigned to the tablet to be sorted.
  • a test of the individual sorting device may be of interest, for example, when the single sorting device is put into operation, either at initial startup or when starting up for a new batch or at the beginning of a new production batch or batch. According to the prior art, this is done, for example:
  • One stamp is removed and replaced by another.
  • tablets pressed with the exchanged stamp are pressed with a pressing force outside the permissible press force interval.
  • the tablets are pressed with a stamp characteristic of the stamp exchanged.
  • the result of the individual sorting can then easily be checked for the correct function of the individual sorting.
  • this method requires reinstatement of the normal post-test stamp and thus opening of the tabletting machine, this form of test operation can not be considered as a start-up test of subsequent normal operation.
  • one of the existing stamp can be changed, for example by sticking an embossing element only in its embossed image.
  • the embossing element can then be removed again without major intervention in the tableting machine after the test operation.
  • the modified die does not normally result in press force signals outside the allowable press force interval.
  • the press force interval can then be reduced so that the press force signals are outside the reduced press force interval. Or the device will be explicitly notified of the changed ram.
  • the known methods for testing the correct function of individual sorting devices are either not integral, since they do not check the correct functioning of the sorting on the basis of the pressing force signal and the actual allowable pressing force interval, or are not suitable for start-up test since they undergo major interventions after test operation and before normal operation require the system.
  • a single sorting device for sorting tablets according to claim 1 is presented.
  • the tablets have been pressed by a tabletting machine with press dies.
  • the individual sorting device is suitable for separating tablets, to which an unacceptable press force signal can be assigned, from tablets, to which a permissible lying press force signal can be assigned.
  • Illegal press force signals are outside an approved press force interval.
  • Permitted press force signals are within the permitted press force interval.
  • the individual sorting device comprises a tablet feed, a press force signal input for receiving press force signals assignable to the supplied tablets, a programmable control unit and a memory.
  • the individual sorting device is characterized in that a test control program is stored in the memory.
  • the test control program is provided for programming / parameterizing the control unit for a test operation.
  • the test operation comprises the application of press force signals from at least one of the press dies with offset.
  • the application of individual press force signals with offset enables the individual sorting device to identify the tablets based on the press force signals, since the application leads to a press force signal outside the permissible interval.
  • a system is also proposed with a tableting device having a plurality of press dies and at least one individual sorting device presented according to the invention.
  • the test mode includes a storage of signals received and generated during the test operation. A report is generated using the stored signals at the end of the test operation.
  • the test control program can be part of a normal operating program.
  • the test mode may precede normal operation. This means that a normal operating program for normal operation can also be stored in the memory of the individual sorting device.
  • the single-sorting device may dispense the discrete tablets to two tablet dispensers and comprise at least one detecting device.
  • the detection device can be arranged on one of the tablet dispensers.
  • the detection device may be suitable for detecting tablets dispensed there.
  • the detection device is connected to the control unit and the control unit is designed to count a number of detected tablets.
  • the target number can be determined by a number of press punches of the tabletting machine, a number of the press die loaded with the offset press force signal and a total number of tablets sorted during the test operation.
  • the method in this case comprises producing tablets with the tabletting device and feeding the tablets and the tablets which can be assigned to the tablets. force signals to the single sorting device.
  • the press force signals are subjected to offset at least one selected pressing station before comparison. Not all stamps are selected. An absolute value of the offset or offsets is selected so that the applied press force signals are outside the permitted press force interval.
  • a number of tablets produced by the selected ram and a number of tablets sorted out are additionally determined. Then the determined numbers are compared. Then, for example, performing a normal operation subsequent to the check may be made dependent on the determined numbers being the same.
  • the selected press dies can be manipulated in such a way that the tablets produced by means of the changed press dies have a stampable image which can be distinguished from an embossing pattern of the other produced tablets. Then, the method may further comprise controlling the embossed image of screened tablets.
  • An absolute value of the offset may be greater than or equal to half of a press force difference between a press force upper limit of the approved press force interval and a lower press force limit of the permitted press force interval.
  • the absolute value of the offset can be greater than or equal to the press force difference.
  • FIG. 1 shows a first exemplary embodiment of the invention
  • Figure 2 shows a second exemplary embodiment of the invention.
  • FIG. 1 shows a first embodiment of an individual sorting device according to the invention.
  • the individual sorting device is used for sorting tablets which have been pressed by a tableting machine with press dies.
  • the tableting machine may comprise one or more independent pressing stations or groups of pressing stations, the like are arranged that each on its own tablets pressed independently of the other stations or groups, so that several tablets can be produced simultaneously.
  • independent pressing station or pressing station group is advantageously a Einzelortortiervorraum available.
  • the individual sorting device 10 comprises a tablet feed 20, a press force signal input 30 for receiving press force signals which can be assigned to the supplied tablets, a control unit 40 and a memory 50.
  • the control unit 40 is for example a computer, a controller or a programmable control unit.
  • the individual sorting device 10 is supplied with tablets via the tablet feed 20 and the tablets associated pressing force signals via the signal input 30.
  • control unit 40 different stored in the memory 50 programs can be loaded. Then, sorting is performed based on the loaded program by the control unit 40 driving a sorting unit 60.
  • the sorting unit 60 sorts the tablets in accordance with the control and outputs them to one of at least two existing tablet dispensers 70, 80, for example, in collection containers, not shown, or on conveyors.
  • At least two programs are stored in the memory 50.
  • One of the programs is for normal operation and one for test operation.
  • the press force signals and a predetermined same press force interval are used by the control unit 40 to determine the respective activation of the sorting unit 60.
  • press force signals are compared with the pressing force interval and tablets to press force signals outside the pressing force interval of tablets to press force signals within the pressing force interval are separated, in the test mode press force signals selected punch selected by the control unit 40 with an offset applied and then only with compared to the press force interval.
  • the selected ram can be acted upon with different offsets.
  • the offset can be positive.
  • the correct sorting can be verified if an upper limit of the press force of the permitted pressing force interval is exceeded.
  • the offset can also be negative.
  • the correct sorting can be verified when falling below a lower pressing force limit of the approved pressing force interval.
  • the absolute value of the offset is greater than or equal to a press force difference between the press force upper limit and the press bottom force limit. Then the total signal (the offset force signal) is safely outside the interval.
  • the value of the offset is greater than or equal to half the press force difference.
  • press force signals essentially correspond to the mean value of upper press force limit and lower press force limit.
  • the lower offset thus leads to a total signal above the upper press force limit.
  • the overall signal is not so large that a maximum pressing force is exceeded.
  • the maximum pressing force is a pressing force limit, which leads to an interruption in operation, for example, for the protection of tools, the machine or people.
  • the value of the offset is determined individually for each pressing station.
  • the value of the offset may depend on a previously determined average of press force signals of the respective press station and one of the two press force limits. The press force signals of the selected stations are thus changed so that they represent a pressing force outside the allowable pressing force interval.
  • the punches in the selected press dies may be changed in their embossed pattern so that tablets pressed by the selected press dies are distinguishable from the tablets pressed by other presser punches. This is possible, for example, by adhering a structured film, a piece of creping adhesive tape or a piece of transparent adhesive tape. Then it is additionally possible to check whether only the tablets pressed by the selected press dies have been sorted out. Since the change of the punch leads to a change in the pressing force, an individual determination of the offset is advantageous here.
  • the individual sorting device 10 of the second embodiment additionally comprises a detection device 90.
  • the detection device 90 may be, for example, a vision system, such as a light barrier, a light scanner or a camera system. This is shown by way of example in FIG.
  • the detection device 90 is arranged on one of the two tablet dispensers 70, 80.
  • the detection device 90 detects whether a tablet has been dispensed.
  • the output of a tablet is signaled to the control unit 40.
  • the control unit 40 counts the signals of the detecting device 90 and determines the total number of tablets dispensed at the tablet dispensing. When the test program starts up, the counter is set to zero.
  • the control unit 40 integrates or counts in this embodiment, the number of received press force signals.
  • the control unit 40 thus determines the number of tablets supplied.
  • a further, not shown detection device may be arranged on the tablet feeder 20, by means of which the control unit 40 may determine the number of tablets supplied.
  • the count for the number of tablets supplied is also set to zero.
  • control unit 40 determines that there is no discrepancy between the number of tablets to be discarded and the number of tablets actually sorted out, the test mode in which the predetermined number of tablets has been fed can be followed directly by normal operation.
  • control unit 40 determines that there is a discrepancy between the number of tablets to be discarded and the number of tablets actually sorted out, normal operation can be prevented.
  • control unit 40 controls for each application with an offset, whether corresponding to a detector signal from a detection device in the Or whether a detector signal from a Detektiervornchtung in the tablet output for admissible tablets fails to receive. Then, in the event of non-receipt of an expected detector signal or reception of an unexpected detector signal, the control unit 40 can also check whether the correct tablets have been sorted out.
  • the selected pressing dies can be changed with respect to their embossing pattern so that tablets pressed by the selected pressing dies can be automatically distinguished from the tablets pressed by other pressing dies by means of an image recognition device. This is possible, for example, by adhering a structured film, a piece of creping adhesive tape or a piece of transparent adhesive tape.
  • the image recognition device may be placed on one of the two tablet dispensers 70, 80.
  • the image recognition device can detect the embossed image and automatically detect whether the detected embossed image corresponds to a embossing image which the tablets dispensed on this tablet dispenser should have.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Automation & Control Theory (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Sorting Of Articles (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

The invention relates to an individual sorting device (10) for sorting tablets which have been pressed by a tableting machine using press punches. The individual sorting device (10) comprises a tablet feed (20), a pressing force signal input (30) for receiving pressing force signals which can be assigned to the fed tablets, a programmable control unit (40), and a storage unit (50). The individual sorting device (10) is suitable for separating tablets to which an unacceptable pressing force signal can be assigned, said unacceptable pressing force signal lying outside of an accepted pressing force range, from tablets to which an acceptable pressing force signal can be assigned, said acceptable pressing force signal lying within the accepted pressing force range. A test control program is stored in the storage unit (50) for programming the control unit (40) for a test operation of the individual sorting device (10), and during the test operation, the test control program includes the offset application of pressing force signals which can be assigned to tablets that have been pressed by at least one of the pressing punches of the tableting machine. The invention further relates to a system comprising a tableting device with multiple pressing punches and with an individual sorting device (10) and to a method for checking a proper functioning of an individual sorting device (10) for a tableting device with pressing punches.

Description

Einzelsortiervorrichtung zur Sortierung von Tabletten, System mit einer solchen Einzelsortiervorrichtung und mit einer Tablettiervorrichtung und Verfahren zur  Single sorting device for sorting tablets, system with such a single sorting device and with a tableting device and method for
Überprüfung einer Einzelsortiervorrichtung Die Erfindung betrifft eine Einzelsortiervorrichtung für Tabletten. Weiterhin betrifft die Erfindung ein System mit einer solchen Einzelsortiervorrichtung und mit einer Tablettiervorrichtung mit mehreren Pressstempeln. Schließlich betrifft die Erfindung ein Verfahren zur Überprüfung eines ordnungsgemäßen Funktionierens einer Einzelsortiervorrichtung für eine Tablettiervorrichtung mit Pressstempeln.  Verification of a single sorting device The invention relates to a single sorting device for tablets. Furthermore, the invention relates to a system with such a Einzelortortiervorrichtung and with a tabletting device with a plurality of press dies. Finally, the invention relates to a method for checking the proper functioning of a Einzelortortiervorrichtung for a tabletting device with press dies.
Mit einer Einzelsortiervorrichtung können Tabletten aussortiert werden, die aufgrund von Fehlern im Produktionsprozess bestimmte Qualitätsanforderungen nicht erfüllen. Tabletten können mit der Einzelsortierung auch für spätere Untersuchungen gezielt aus dem Produktionsprozess entnommen werden. With a single sorting device tablets can be sorted out, which do not meet certain quality requirements due to errors in the production process. Tablets can also be removed from the production process by individual sorting for later examinations.
Tabletten können mit so genannten Tablettiermaschinen hergestellt werden. Ein Beispiel für Tablettiermaschinen sind pharmazeutische Rundlaufpressen. Tablets can be produced with so-called tabletting machines. An example of tabletting machines are pharmaceutical rotary presses.
Eine Rundlaufpresse ist beispielsweise aus der DE 10 2009 020 196 bekannt. Die Rund- laufpresse besitzt einen drehangetriebenen Rotor. Der Rotor läuft in einer im Wesentlichen horizontalen Ebene um. Der Rotor trägt eine Vielzahl von Stempelpaaren. Die Stempelpaare bestehen jeweils aus einem Oberstempel und einem Unterstempel. An einer vorbestimmten Stelle des Umfangs des Rotors wird Tablettenrohmaterial in den Zwischenraum zwischen dem Oberstempel und dem Unterstempel eingefüllt. Wenn das so gefüllte Stempelpaar durch Drehung des Rotors in dessen Umfangsrichtung bewegt wird, werden die beiden Stempel durch Steuerkurven aufeinander zu bewegt. Die Stempel gelangen dann zu zumindest einer Druckrolleneinheit. Die Druckrolleneinheit ist in Umfangsrichtung des Rotors nachgeschaltet. In der Druckrolleneinheit werden die Stempel mit Druck gegeneinander gepresst. Dadurch wird das Material unter Bildung der Tablette verdichtet. Anschließend treten die Stempel in eine in Umfangsrichtung des Rotors nachgeschaltete Entnahmestation ein. In der Entnahmestation fahren die Stempel auseinander und die Tablette wird entnommen und abgeführt. A rotary press is known for example from DE 10 2009 020 196. The rotary press has a rotary driven rotor. The rotor revolves in a substantially horizontal plane. The rotor carries a variety of stamp pairs. The stamp pairs each consist of an upper punch and a lower punch. At a predetermined position of the circumference of the rotor, tablet raw material is filled in the space between the upper punch and the lower punch. When the stamp pair thus filled is moved by rotation of the rotor in its circumferential direction, the two punches are moved towards each other by cams. The stamps then arrive at least one pressure roller unit. The pressure roller unit is connected downstream in the circumferential direction of the rotor. In the pressure roller unit, the punches are pressed against each other with pressure. This compacts the material to form the tablet. Subsequently, the punches enter a removal station downstream in the circumferential direction of the rotor. In the removal station, the stamps move apart and the tablet is removed and removed.
Der Ort, an dem die Stempel mit Druck gegeneinander gepresst werden, wird auch als Pressstation bezeichnet. Eine Tablettiermaschine kann eine oder mehrere Pressstationen umfassen. Zum Beispiel können die Tabletten in einer ersten Pressstation vorgepresst und die vorgepressten Tabletten dann in einer zweiten Pressstation fertig gepresst werden. Mehrere einzelne Pressstationen oder mehrere Gruppen aus Pressstationen zum Vor- und Fertigpressen können so arrangiert sein, dass jede für sich Tabletten unabhängig von den anderen Stationen beziehungsweise Gruppen presst, so dass gleichzeitig mehrere Tabletten hergestellt werden können. The place where the stamps are pressed against each other with pressure is also referred to as pressing station. A tabletting machine may include one or more pressing stations. For example, the tablets may be pre-pressed in a first pressing station and the pre-pressed tablets then finished pressed in a second pressing station. Several individual pressing stations or several groups of pressing stations for pre-pressing and final pressing can be arranged so that each individually presses tablets independently of the other stations or groups, so that several tablets can be produced simultaneously.
Die tatsächliche Presskraft, mit der eine Tablette gepresst wurde, lässt auf das Tablettengewicht und die Verlässlichkeit der Verpressung schließen. Es ist zudem wünschenswert, verlässlich gepresste Tabletten mit möglichst identischem Gewicht zu produzieren. Eine Einzelsortierung vergleicht daher die tatsächliche Presskraft mit einem zulässigen Presskraftinter- vall. Tabletten, die mit einer Presskraft außerhalb des Intervalls gepresst wurden, werden von der Einzelsortiervorrichtung aussortiert. Dabei ist jeder unabhängigen Pressstation beziehungsweise Gruppe von Pressstationen eine Einzelsortiervorrichtung zugeordnet. The actual pressing force with which a tablet was pressed indicates the tablet weight and the reliability of the compression. It is also desirable to produce reliably pressed tablets of as identical weight as possible. An individual sorting therefore compares the actual pressing force with a permissible pressing force interval. Tablets pressed with a pressing force out of the interval are discarded from the single-sorter. Each independent pressing station or group of pressing stations is assigned a single sorting device.
Die Aussortierung erfolgt beispielsweise über einen Luftstoß oder einen Schieber. Aussor- tierte Tabletten werden in einen ersten Ausstoßkanal geleitet. Die übrigen Tabletten werden in einen zweiten Ausstoßkanal geleitet. The sorting is done for example via a puff of air or a slider. Discarded tablets are directed into a first discharge channel. The remaining tablets are directed into a second discharge channel.
Üblicherweise wird dafür der Einzelsortiervorrichtung ein Presskraftsignal zugeführt. Das Presskraftsignal stammt von einer Tablettiermaschine und kann der zu sortierenden Tablette zugeordnet werden. Usually, the individual sorting device is supplied with a press force signal for this purpose. The press force signal comes from a tabletting machine and can be assigned to the tablet to be sorted.
In manchen Anwendungen ist es sehr wichtig nachzuweisen, dass die Einzelsortierung ordnungsgemäß funktioniert. Ein Test der Einzelsortiervorrichtung kann zum Beispiel bei Inbetriebnahme der Einzelsortiervorrichtung, sei es bei erstmaliger Inbetriebnahme oder bei Inbetriebnahme für ein neues Batch oder zu Beginn einer neuen Fertigungsreihe oder einer neuen Charge von Interesse sein. Nach Stand der Technik wird dies beispielsweise so durchgeführt: In some applications it is very important to prove that single sorting works properly. A test of the individual sorting device may be of interest, for example, when the single sorting device is put into operation, either at initial startup or when starting up for a new batch or at the beginning of a new production batch or batch. According to the prior art, this is done, for example:
Ein Stempel wird entnommen und durch einen anderen ersetzt. Dabei sind mit dem ausge- tauschten Stempel gepresste Tabletten mit einer Presskraft außerhalb des zulässigen Presskraftintervalls gepresst. Zudem sind die Tabletten mit einer für den ausgetauschten Stempel charakteristischen Prägung gepresst. One stamp is removed and replaced by another. In the process, tablets pressed with the exchanged stamp are pressed with a pressing force outside the permissible press force interval. In addition, the tablets are pressed with a stamp characteristic of the stamp exchanged.
Anhand der Prägung kann dann das Ergebnis der Einzelsortierung leicht auf korrekte Funk- tion der Einzelsortierung kontrolliert werden. Da dieses Verfahren aber ein Wiedereinsetzen des normalen Stempels nach dem Test und damit ein Öffnen der Tablettiermaschine erfordert, kann diese Form des Testbetriebs nicht als Anlauftest eines sich anschließenden Normalbetriebs angesehen werden. Um die nach dem Testbetrieb notwendigen Eingriffe in das System zu verringern, kann auch einer der vorhandenen Stempel beispielsweise durch Aufkleben eines Prägeelements lediglich in seinem Prägebild verändert werden. Das Prägeelement kann dann ohne größeren Eingriff in die Tablettiermaschine nach dem Testbetrieb wieder entfernt werden. Der veränderte Stempel führt aber normalerweise nicht zu Presskraftsignalen außerhalb des zulässigen Presskraftintervalls. Für den Test der Einzelsortierung kann dann das Presskraftintervall so verkleinert werden, dass die Presskraftsignale außerhalb des verkleinerten Presskraftintervalls sind. Oder der Vorrichtung werden explizit die veränderten Pressstempel mitgeteilt. Based on the embossing, the result of the individual sorting can then easily be checked for the correct function of the individual sorting. However, since this method requires reinstatement of the normal post-test stamp and thus opening of the tabletting machine, this form of test operation can not be considered as a start-up test of subsequent normal operation. In order to reduce the necessary after the test operation intervention in the system, and one of the existing stamp can be changed, for example by sticking an embossing element only in its embossed image. The embossing element can then be removed again without major intervention in the tableting machine after the test operation. However, the modified die does not normally result in press force signals outside the allowable press force interval. For the individual sorting test, the press force interval can then be reduced so that the press force signals are outside the reduced press force interval. Or the device will be explicitly notified of the changed ram.
Die bekannten Verfahren zum Test der korrekten Funktion von Einzelsortiervorrichtungen sind entweder nicht ganzheitlich, da sie nicht das korrekte Funktionieren der Sortierung anhand des Presskraftsignals und dem tatsächlich zulässigen Presskraftintervall überprüfen, oder nicht Anlauftest geeignet, da sie nach dem Testbetrieb und vor dem Normalbetrieb größere Eingriffe in das System erfordern. The known methods for testing the correct function of individual sorting devices are either not integral, since they do not check the correct functioning of the sorting on the basis of the pressing force signal and the actual allowable pressing force interval, or are not suitable for start-up test since they undergo major interventions after test operation and before normal operation require the system.
Es wird daher erfindungsgemäß eine Einzelsortiervorrichtung zur Sortierung von Tabletten gemäß Anspruch 1 vorgestellt. Die Tabletten sind dabei von einer Tablettiermaschine mit Pressstempeln gepresst worden. Die Einzelsortiervorrichtung ist geeignet, Tabletten, denen ein unzulässiges Presskraftsignal zugeordnet werden kann, von Tabletten zu trennen, denen ein zulässiges liegendes Presskraftsignal zugeordnet werden kann. Unzulässige Presskraftsignale liegen außerhalb eines zugelassenen Presskraftintervalls. Zulässige Presskraftsignale liegen innerhalb des zugelassenen Presskraftintervalls. Therefore, according to the invention, a single sorting device for sorting tablets according to claim 1 is presented. The tablets have been pressed by a tabletting machine with press dies. The individual sorting device is suitable for separating tablets, to which an unacceptable press force signal can be assigned, from tablets, to which a permissible lying press force signal can be assigned. Illegal press force signals are outside an approved press force interval. Permitted press force signals are within the permitted press force interval.
Die Einzelsortiervorrichtung umfasst eine Tablettenzuführung, einen Presskraftsignaleingang zum Empfang von den zugeführten Tabletten zuordenbaren Presskraftsignalen, eine programmierbare Steuerungseinheit und einen Speicher. Die Einzelsortiervorrichtung ist dadurch gekennzeichnet, dass in dem Speicher ein Teststeuerprogramm hinterlegt ist. Das Teststeuerprogramm ist zur Programmierung/Parametrierung der Steuerungseinheit für einen Testbetrieb vorgesehen. Der Testbetrieb umfasst die Beaufschlagung von Presskraftsignalen von mindestens einem der Pressstempel mit Offset. Die Beaufschlagung einzelner Presskraftsignale mit Offset ermöglicht, dass die Einzelsortiervorrichtung die Tabletten anhand der Presskraftsignale identifiziert, da die Beaufschlagung zu einem Presskraftsignal außerhalb des zulässigen Intervalls führt. The individual sorting device comprises a tablet feed, a press force signal input for receiving press force signals assignable to the supplied tablets, a programmable control unit and a memory. The individual sorting device is characterized in that a test control program is stored in the memory. The test control program is provided for programming / parameterizing the control unit for a test operation. The test operation comprises the application of press force signals from at least one of the press dies with offset. The application of individual press force signals with offset enables the individual sorting device to identify the tablets based on the press force signals, since the application leads to a press force signal outside the permissible interval.
Erfindungsgemäß wird weiterhin ein System mit einer Tablettiervorrichtung mit mehreren Pressstempeln und mindestens einer erfindungsgemäß vorgestellten Einzelsortiervorrichtung vorgeschlagen. In einer Ausführungsform der Einzelsortiervorrichtung beziehungsweise des Systems um- fasst der Testbetrieb eine Speicherung von während des Testbetriebs empfangenen und generierten Signalen. Unter Verwendung der gespeicherten Signale am Ende des Testbetriebs ein Bericht erstellt. Dabei kann das Teststeuerprogramm Teil eines Normalbetriebprogramms sein. Der Testbetrieb kann einem Normalbetrieb vorangehen. Das heißt, im Speicher der Einzelsortiervorrichtung kann auch ein Normalbetriebprogramm für einen Normalbetrieb hinterlegt sein. According to the invention, a system is also proposed with a tableting device having a plurality of press dies and at least one individual sorting device presented according to the invention. In one embodiment of the individual sorting device or of the system, the test mode includes a storage of signals received and generated during the test operation. A report is generated using the stored signals at the end of the test operation. In this case, the test control program can be part of a normal operating program. The test mode may precede normal operation. This means that a normal operating program for normal operation can also be stored in the memory of the individual sorting device.
Die Einzelsortiervorrichtung kann die voneinander getrennten Tabletten an zwei Tabletten- ausgaben ausgeben und mindestens eine Detektiervorrichtung umfassen. Die Detektiervor- richtung kann an einer der Tablettenausgaben angeordnet sein. Die Detektiervorrichtung kann geeignet sein, dort ausgegebene Tabletten zu detektieren. Dabei ist die Detektiervorrichtung mit der Steuerungseinheit verbunden und die Steuerungseinheit ist ausgebildet, eine Anzahl detektierter Tabletten zu zählen. The single-sorting device may dispense the discrete tablets to two tablet dispensers and comprise at least one detecting device. The detection device can be arranged on one of the tablet dispensers. The detection device may be suitable for detecting tablets dispensed there. In this case, the detection device is connected to the control unit and the control unit is designed to count a number of detected tablets.
Wenn eine Anzahl während des Testbetriebes detektierter Tabletten nicht einer Sollanzahl entspricht, kann die Ausführung des Normalbetriebprogramms für den Normalbetrieb unterdrückt werden. Dabei kann die Sollanzahl durch eine Anzahl der Pressstempel der Tablettiermaschine, eine Anzahl der mit dem Offsetpresskraftsignal beaufschlagten Pressstempel und eine Gesamtzahl während des Testbetriebs sortierten Tabletten bestimmt sein. If a number of tablets detected during the test operation does not correspond to a target number, execution of the normal operation program for the normal operation can be suppressed. In this case, the target number can be determined by a number of press punches of the tabletting machine, a number of the press die loaded with the offset press force signal and a total number of tablets sorted during the test operation.
Weiterhin wird erfindungsgemäß ein Verfahren zur Überprüfung eines ordnungsgemäßen Funktionierens einer Einzelsortiervorrichtung für eine Tablettiervorrichtung mit Pressstempeln vorgeschlagen. Das Verfahren umfasst dabei ein Herstellen von Tabletten mit der Tablettiervorrichtung und ein Zuführen der Tabletten und den Tabletten zuordenbaren Press- kraftsignalen zu der Einzelsortiervorrichtung. Durch Vergleichen der Presskraftsignale mit einem zugelassenen Presskraftintervall werden die zugeordneten Tabletten als zulässig oder als unzulässig klassifiziert. Die Klassifizierung erfolgt in Abhängigkeit von dem Vergleichsergebnis. Unzulässige Tabletten werden aussortiert. Dabei werden die Presskraftsignale min- destens einer ausgewählter Pressstation vor dem Vergleich mit Offset beaufschlagt. Dabei sind nicht alle Pressstempel ausgewählt. Ein Absolutwert des oder der Offsets ist so gewählt, dass die beaufschlagten Presskraftsignale außerhalb des zugelassenen Presskraftintervalls sind. In einer vorteilhaften Ausführungsform des Verfahrens wird zusätzlich eine Anzahl von durch die ausgewählten Pressstempel hergestellter Tabletten und eine Anzahl von aussortierten Tabletten bestimmt. Dann werden die bestimmten Anzahlen vergleichen. Dann kann beispielsweise das Ausführen eines sich der Überprüfung anschließenden Normalbetriebs davon abhängig gemacht werden, dass die bestimmten Anzahlen gleich sind. Furthermore, a method for verifying the proper functioning of a single sorting device for a tabletting device with press dies is proposed according to the invention. The method in this case comprises producing tablets with the tabletting device and feeding the tablets and the tablets which can be assigned to the tablets. force signals to the single sorting device. By comparing the press force signals with an approved pressing force interval, the associated tablets are classified as permissible or inadmissible. The classification is done depending on the result of the comparison. Illegal tablets are sorted out. In this case, the press force signals are subjected to offset at least one selected pressing station before comparison. Not all stamps are selected. An absolute value of the offset or offsets is selected so that the applied press force signals are outside the permitted press force interval. In an advantageous embodiment of the method, a number of tablets produced by the selected ram and a number of tablets sorted out are additionally determined. Then the determined numbers are compared. Then, for example, performing a normal operation subsequent to the check may be made dependent on the determined numbers being the same.
In dieser oder einer anderen vorteilhaften Ausführungsform des Verfahrens können die ausgewählten Pressstempel so manipuliert sein, dass die mittels der veränderten Pressstempel hergestellten Tabletten ein von einem Prägebild der übrigen hergestellten Tabletten unterscheidbares Prägebild aufweisen. Dann kann das Verfahren weiterhin ein Kontrollieren des Prägebilds aussortierter Tabletten umfassen. In this or another advantageous embodiment of the method, the selected press dies can be manipulated in such a way that the tablets produced by means of the changed press dies have a stampable image which can be distinguished from an embossing pattern of the other produced tablets. Then, the method may further comprise controlling the embossed image of screened tablets.
Ein Absolutwert des Offsets kann größer gleich der Hälfte einer Presskraftdifferenz zwischen einer Presskraftobergrenze des zugelassenen Presskraftintervalls und einer Presskraftuntergrenze des zugelassenen Presskraftintervalls sein. Insbesondere kann der Absolutwert des Offsets größer gleich der Presskraftdifferenz sein. An absolute value of the offset may be greater than or equal to half of a press force difference between a press force upper limit of the approved press force interval and a lower press force limit of the permitted press force interval. In particular, the absolute value of the offset can be greater than or equal to the press force difference.
Ausführungsbeispiele der Erfindung werden anhand der Zeichnungen und der nachfolgenden Beschreibung näher erläutert. Es zeigen: Figur 1 eine erste beispielhafte Ausführungsform der Erfindung und Embodiments of the invention will be explained in more detail with reference to the drawings and the description below. FIG. 1 shows a first exemplary embodiment of the invention and FIG
Figur 2 eine zweite beispielhafte Ausführungsform der Erfindung. Figure 2 shows a second exemplary embodiment of the invention.
Figur 1 zeigt eine erste Ausführungsform einer erfindungsgemäßen Einzelsortiervorrichtung. Die Einzelsortiervorrichtung dient zur Sortierung von Tabletten, die von einer Tablettiermaschine mit Pressstempeln gepresst wurden. Dabei kann die Tablettiermaschine eine oder mehrere unabhängige Pressstationen oder Gruppen von Pressstationen umfassen, die so arrangiert sind, dass jede für sich Tabletten unabhängig von den anderen Stationen beziehungsweise Gruppen presst, so dass gleichzeitig mehrere Tabletten hergestellt werden können. Je unabhängige Pressstation beziehungsweise Pressstationsgruppe ist vorteilhafterweise eine Einzelsortiervorrichtung vorhanden. FIG. 1 shows a first embodiment of an individual sorting device according to the invention. The individual sorting device is used for sorting tablets which have been pressed by a tableting machine with press dies. In this case, the tableting machine may comprise one or more independent pressing stations or groups of pressing stations, the like are arranged that each on its own tablets pressed independently of the other stations or groups, so that several tablets can be produced simultaneously. Depending on independent pressing station or pressing station group is advantageously a Einzelortortiervorrichtung available.
Die Einzelsortiervorrichtung 10 umfasst eine Tablettenzuführung 20, einen Presskraftsignaleingang 30 zum Empfang von den zugeführten Tabletten zuordenbaren Presskraftsignalen, einer Steuerungseinheit 40 und einen Speicher 50. Die Steuerungseinheit 40 ist zum Beispiel ein Rechner, ein Controller oder eine programmierbare Steuerungseinheit. The individual sorting device 10 comprises a tablet feed 20, a press force signal input 30 for receiving press force signals which can be assigned to the supplied tablets, a control unit 40 and a memory 50. The control unit 40 is for example a computer, a controller or a programmable control unit.
Der Einzelsortiervorrichtung 10 werden Tabletten über die Tablettenzuführung 20 und den Tabletten zugeordnete Presskraftsignale über den Signaleingang 30 zugeführt. The individual sorting device 10 is supplied with tablets via the tablet feed 20 and the tablets associated pressing force signals via the signal input 30.
In die Steuerungseinheit 40 können unterschiedliche, im Speicher 50 hinterlegte Programme geladen werden. Dann wird auf Basis des geladenen Programms eine Sortierung ausgeführt, indem die Steuerungseinheit 40 eine Sortiereinheit 60 ansteuert. Die Sortiereinheit 60 sortiert dann die Tabletten entsprechend der Ansteuerung und gibt sie an einer von mindestens zwei vorhandenen Tablettenausgaben 70, 80 beispielsweise in nicht dargestellte Sammelbehälter oder auf Fördervorrichtungen aus. In the control unit 40 different stored in the memory 50 programs can be loaded. Then, sorting is performed based on the loaded program by the control unit 40 driving a sorting unit 60. The sorting unit 60 then sorts the tablets in accordance with the control and outputs them to one of at least two existing tablet dispensers 70, 80, for example, in collection containers, not shown, or on conveyors.
In diesem Ausführungsbeispiel sind im Speicher 50 mindestens zwei Programme hinterlegt. Eines der Programme dient für einen Normalbetrieb und eines für einen Testbetrieb. In beiden Betriebsmodi werden die Presskraftsignale und ein vorgegebenes selbes Presskraftintervall von der Steuerungseinheit 40 benutzt, um die jeweilige Ansteuerung der Sortierein- heit 60 zu bestimmen. In this embodiment, at least two programs are stored in the memory 50. One of the programs is for normal operation and one for test operation. In both operating modes, the press force signals and a predetermined same press force interval are used by the control unit 40 to determine the respective activation of the sorting unit 60.
Während im Normalbetrieb jedoch die tatsächlich am Presskraftsignaleingang 30 empfangenen Presskraftsignale mit dem Presskraftintervall verglichen und Tabletten zu Presskraftsignalen außerhalb des Presskraftintervalls von Tabletten zu Presskraftsignalen innerhalb des Presskraftintervalls getrennt werden, werden im Testbetrieb Presskraftsignale ausgewählter Pressstempel von der Steuerungseinheit 40 mit einem Offset beaufschlagt und dann erst mit dem Presskraftintervall verglichen. Die ausgewählten Pressstempel können dabei mit unterschiedlichen Offsets beaufschlagt werden. Der Offset kann positiv sein. Dann kann insbesondere das korrekte Sortieren bei Überschreiten einer Presskraftobergrenze des zugelassenen Presskraftintervalls verifiziert werden. Der Offset kann auch negativ sein. Dann kann insbesondere das korrekte Sortieren bei Unterschreiten einer Presskraftuntergrenze des zugelassenen Presskraftintervalls verifiziert werden. In einer beispielhaften Ausführung ist der Absolutwert des Offset größer gleich einer Presskraftdifferenz zwischen der Presskraftobergrenze und der Presskraftuntergrenze. Dann liegt das Gesamtsignal (das mit Offset beaufschlagte Presskraftsignal) sicher außerhalb des In- tervalls. While in normal operation, however, the actually received at the press force signal input 30 press force signals are compared with the pressing force interval and tablets to press force signals outside the pressing force interval of tablets to press force signals within the pressing force interval are separated, in the test mode press force signals selected punch selected by the control unit 40 with an offset applied and then only with compared to the press force interval. The selected ram can be acted upon with different offsets. The offset can be positive. Then, in particular, the correct sorting can be verified if an upper limit of the press force of the permitted pressing force interval is exceeded. The offset can also be negative. Then, in particular, the correct sorting can be verified when falling below a lower pressing force limit of the approved pressing force interval. In an exemplary embodiment, the absolute value of the offset is greater than or equal to a press force difference between the press force upper limit and the press bottom force limit. Then the total signal (the offset force signal) is safely outside the interval.
In einer anderen beispielhaften Ausführung ist der Wert des Offsets größer gleich der halben Presskraftdifferenz. Presskraftsignalen entsprechen nämlich im Wesentlichem dem Mittelwert von Presskraftobergrenze und Presskraftuntergrenze. Der geringere Offset führt damit zu einem Gesamtsignal oberhalb der Presskraftobergrenze. Gleichzeitig ist das Gesamtsignal nicht so groß, dass eine Maximalpresskraft überschritten wird. Dabei ist die Maximalpresskraft eine Presskraftgrenze, die zu einer Betriebsunterbrechung zum Beispiel für den Schutz von Werkzeugen, der Maschine oder Menschen führt. In noch einer anderen beispielhaften Ausführung ist der Wert des Offsets individuell für jede Pressstation bestimmt. Zum Beispiel kann der Wert des Offsets von einem zuvor ermittelten Mittelwert von Presskraftsignalen der jeweiligen Pressstation und einer der beiden Presskraftgrenzen abhängen. Die Presskraftsignale der ausgewählten Stationen werden also so verändert, dass sie eine Presskraft außerhalb des zulässigen Presskraftintervalls repräsentieren. In another exemplary embodiment, the value of the offset is greater than or equal to half the press force difference. In fact, press force signals essentially correspond to the mean value of upper press force limit and lower press force limit. The lower offset thus leads to a total signal above the upper press force limit. At the same time, the overall signal is not so large that a maximum pressing force is exceeded. The maximum pressing force is a pressing force limit, which leads to an interruption in operation, for example, for the protection of tools, the machine or people. In yet another exemplary embodiment, the value of the offset is determined individually for each pressing station. For example, the value of the offset may depend on a previously determined average of press force signals of the respective press station and one of the two press force limits. The press force signals of the selected stations are thus changed so that they represent a pressing force outside the allowable pressing force interval.
Anhand des Verhältnisses zwischen der Anzahl ausgewählter Pressstempel zur Gesamtanzahl von Pressstempeln lässt sich dann nach Durchlauf eine bestimmten Anzahl von Tabletten bestimmen, wie viele als unzulässig aussortiert worden sein müssen, wenn die Nachsortierung stets korrekt funktioniert hat. On the basis of the ratio between the number of selected dies to the total number of press dies can then after passing a certain number of tablets determine how many must have been sorted out as inadmissible if the reordering has always worked correctly.
Zusätzlich können in der Tablettiermaschine, die die Tabletten presst, die Stempel in den ausgewählten Pressstempeln bezüglich ihres Prägebildes so verändert werden, dass von den ausgewählten Pressstempeln gepresste Tabletten von den von anderen Pressstempeln gepressten Tabletten unterscheidbar sind. Dies ist beispielsweise durch Aufkleben einer strukturierten Folie, eines Stücks Kreppklebeband oder eines Stücks Transparentklebeband möglich. Dann lässt sich zusätzlich kontrollieren, ob auch stets nur die von den ausgewählten Pressstempeln gepressten Tabletten aussortiert wurden. Da die Veränderung des Stempels zu einer Veränderung der Presskraft führt, ist hier eine individuelle Bestimmung des Offsets vorteilhaft. In addition, in the tableting machine that presses the tablets, the punches in the selected press dies may be changed in their embossed pattern so that tablets pressed by the selected press dies are distinguishable from the tablets pressed by other presser punches. This is possible, for example, by adhering a structured film, a piece of creping adhesive tape or a piece of transparent adhesive tape. Then it is additionally possible to check whether only the tablets pressed by the selected press dies have been sorted out. Since the change of the punch leads to a change in the pressing force, an individual determination of the offset is advantageous here.
Zur Automatisierung dieser Kontrolle umfasst die Einzelsortiervorrichtung 10 des zweiten Ausführungsbeispiels zusätzlich eine Detektiervorrichtung 90. Die Detektiervorrichtung 90 kann zum Beispiel ein Visionssystem sein, etwa eine Lichtschranke, ein Lichttaster oder ein Kamerasystem. Dies ist beispielhaft in Figur 2 dargestellt. Die Detektiervorrichtung 90 ist an eine der beiden Tablettenausgaben 70, 80 angeordnet. Die Detektiervorrichtung 90 detek- tiert, ob eine Tablette ausgeben wurde. Die Ausgabe einer Tablette wird an die Steuerungs- einheit 40 signalisiert. Die Steuerungseinheit 40 zählt die Signale der Detektiervorrichtung 90 und bestimmt die Gesamtzahl der Tabletten, die an der Tablettenausgabe ausgegeben wurden. Mit Anlauf des Testprogramms wird dabei der Zähler auf Null gesetzt. To automate this control, the individual sorting device 10 of the second embodiment additionally comprises a detection device 90. The detection device 90 may be, for example, a vision system, such as a light barrier, a light scanner or a camera system. This is shown by way of example in FIG. The detection device 90 is arranged on one of the two tablet dispensers 70, 80. The detection device 90 detects whether a tablet has been dispensed. The output of a tablet is signaled to the control unit 40. The control unit 40 counts the signals of the detecting device 90 and determines the total number of tablets dispensed at the tablet dispensing. When the test program starts up, the counter is set to zero.
Die Steuerungseinheit 40 integriert beziehungsweise zählt in diesem Ausführungsbeispiel auch die Anzahl der empfangenen Presskraftsignale. Die Steuerungseinheit 40 bestimmt so die Anzahl der zugeführten Tabletten. Alternativ oder zusätzlich kann eine weitere, nicht dargestellte Detektiervorrichtung an der Tablettenzuführung 20 angeordnet sein, mit deren Hilfe die Steuerungseinheit 40 die Anzahl der zugeführten Tabletten bestimmen kann. Mit Anlauf des Testprogramms wird dabei auch der Zähler für die Anzahl zugeführter Tabletten auf Null gesetzt. The control unit 40 integrates or counts in this embodiment, the number of received press force signals. The control unit 40 thus determines the number of tablets supplied. Alternatively or additionally, a further, not shown detection device may be arranged on the tablet feeder 20, by means of which the control unit 40 may determine the number of tablets supplied. At the start of the test program, the count for the number of tablets supplied is also set to zero.
Dann ist es möglich, nach Zuführung einer vorbestimmten Anzahl von Tabletten, zum Beispiel 1000 oder 2000 Stück, automatisch zu prüfen, ob der dem Verhältnis zwischen der Anzahl ausgewählter Pressstempel zur Gesamtanzahl von Pressstempeln entsprechende Anteil der Anzahl zugeführter Tabletten tatsächlich aussortiert wurde. Then, after feeding a predetermined number of tablets, for example 1000 or 2000 pieces, it is possible to automatically check whether the proportion of the number of tablets supplied corresponding to the ratio between the number of selected pressing dies and the total number of pressing dies has actually been sorted out.
Sofern die Steuerungseinheit 40 feststellt, dass zwischen der Anzahl auszusortierender Tabletten und der Anzahl tatsächlich aussortierter Tabletten keine Diskrepanz besteht, kann sich dem Testbetrieb, in dem die vorbestimmte Anzahl von Tabletten zugeführt wurde, direkt ein Normalbetrieb anschließen. If the control unit 40 determines that there is no discrepancy between the number of tablets to be discarded and the number of tablets actually sorted out, the test mode in which the predetermined number of tablets has been fed can be followed directly by normal operation.
Stellt die Steuerungseinheit 40 hingegen fest, dass zwischen der Anzahl auszusortierender Tabletten und der Anzahl tatsächlich aussortierter Tabletten eine Diskrepanz besteht, kann der Normalbetrieb verhindert werden. On the other hand, if the control unit 40 determines that there is a discrepancy between the number of tablets to be discarded and the number of tablets actually sorted out, normal operation can be prevented.
Es ist auch möglich, dass die Steuerungseinheit 40 zu jeder Beaufschlagung mit einem Offset kontrolliert, ob entsprechend ein Detektorsignal von einer Detektiervorrichtung in der Tablettenausgabe für unzulässige Tabletten empfangen wird beziehungsweise ob entsprechend ein Detektorsignal von einer Detektiervornchtung in der Tablettenausgabe für zulässige Tabletten ausbleibt. Dann kann bei Nichtempfang eines zu erwartenden Detektorsignals beziehungsweise bei Empfang eines nicht erwarteten Detektorsignals die Steuerungseinheit 40 auch kontrollieren, ob die richtigen Tabletten aussortiert wurden. It is also possible that the control unit 40 controls for each application with an offset, whether corresponding to a detector signal from a detection device in the Or whether a detector signal from a Detektiervornchtung in the tablet output for admissible tablets fails to receive. Then, in the event of non-receipt of an expected detector signal or reception of an unexpected detector signal, the control unit 40 can also check whether the correct tablets have been sorted out.
Alternativ oder zusätzlich können in der Tablettiermaschine, die die Tabletten presst, die ausgewählten Pressstempel bezüglich ihres Prägebildes so verändert werden, dass von den ausgewählten Pressstempeln gepresste Tabletten von den von anderen Pressstempeln ge- pressten Tabletten mittels einer Bilderkennungsvorrichtung automatisch unterscheidbar sind. Dies ist beispielsweise durch Aufkleben einer strukturierten Folie, eines Stücks Kreppklebeband oder eines Stücks Transparentklebeband möglich. Alternatively or additionally, in the tabletting machine which presses the tablets, the selected pressing dies can be changed with respect to their embossing pattern so that tablets pressed by the selected pressing dies can be automatically distinguished from the tablets pressed by other pressing dies by means of an image recognition device. This is possible, for example, by adhering a structured film, a piece of creping adhesive tape or a piece of transparent adhesive tape.
Dann kann die Bilderkennungsvorrichtung an eine der beiden Tablettenausgaben 70, 80 angeordnet werden. Die Bilderkennungsvorrichtung kann das Prägebild erfassen und automatisch detektieren, ob das erfasste Prägebild einem Prägebild entspricht, welches die an dieser Tablettenausgabe ausgegebenen Tabletten haben sollen. Then, the image recognition device may be placed on one of the two tablet dispensers 70, 80. The image recognition device can detect the embossed image and automatically detect whether the detected embossed image corresponds to a embossing image which the tablets dispensed on this tablet dispenser should have.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
10 Einzelsortiervorrichtung 10 single sorting device
20 Tablettenzuführung  20 tablet feed
30 Presskraftsignaleingang 30 press force signal input
40 Steuerungseinheit  40 control unit
50 Speicher  50 memory
60 Sortiereinheit  60 sorting unit
70 Tablettenausgabe  70 tablet issue
80 Tablettenausgabe 80 tablet issue
90 Detektiervorrichtung  90 detection device

Claims

Patentansprüche claims
Einzelsortiervorrichtung (10) zur Sortierung von Tabletten, die von einer Tablettiermaschine mit Pressstempeln gepresst wurden, wobei die Einzelsortiervorrichtung (10) eine Tablettenzuführung (20), einen Presskraftsignaleingang (30) zum Empfang von den zugeführten Tabletten zuordenbaren Presskraftsignalen, eine programmierbare Steuerungseinheit (40) und einen Speicher (50) umfasst und wobei die Einzelsortiervorrichtung (10) geeignet ist, Tabletten, denen ein unzulässiges, außerhalb eines zugelassenen Presskraftintervalls liegendes Presskraftsignal zugeordnet werden kann, von Tabletten zu trennen, denen ein zulässiges, innerhalb des zugelassenen Presskraftintervalls liegendes Presskraftsignal zugeordnet werden kann, Single sorting device (10) for sorting tablets pressed by a tabletting machine with press dies, the single sorting device (10) comprising a tablet feed (20), a press force signal input (30) for receiving press force signals attributable to the supplied tablets, a programmable control unit (40) and a memory (50), and wherein the single-sorting device (10) is adapted to separate tablets which may be assigned an illegal press force signal outside an approved press force interval from tablets to which an allowable press force signal within the permitted press force interval is assigned can
dadurch gekennzeichnet, dass characterized in that
in dem Speicher (50) ein Teststeuerprogramm zur Programmierung der Steuerungseinheit (40) für einen Testbetrieb der Einzelsortiervorrichtung (10) hinterlegt ist, wobei das Teststeuerprogramm während des Testbetriebs die Beaufschlagung von Presskraftsignalen, die Tabletten zugeordnet werden können, die von mindestens einem der Pressstempel der Tablettiermaschine gepresst sind, mit Offset umfasst. in the memory (50) a test control program for programming the control unit (40) for a test operation of the single sorting device (10) is deposited, wherein the test control program during the test operation, the application of press force signals, the tablets can be assigned, the at least one of the punches Tabletting machine are pressed, with offset covers.
Einzelsortiervorrichtung nach Anspruch 1 , wobei der Testbetrieb eine Speicherung (50) von während des Testbetriebs empfangenen und generierten Signalen und die Erstellung eines Berichts unter Verwendung der gespeicherten Signale am Ende des Testbetriebs umfasst. The single-sorting apparatus of claim 1, wherein the test operation includes storing (50) signals received and generated during the test operation and generating a report using the stored signals at the end of the test operation.
Einzelsortiervorrichtung nach Anspruch 1 oder 2, wobei das Teststeuerprogramm Teil eines Normalbetriebprogramms ist und der Testbetrieb einem Normalbetrieb vorangeht. The single sorting apparatus according to claim 1 or 2, wherein the test control program is part of a normal operation program and the test operation is preceded by normal operation.
Einzelsortiervorrichtung nach Anspruch 1 , 2 oder 3, wobei die Einzelsortiervorrichtung (10) die voneinander getrennten Tabletten an zwei Tablettenausgaben (70, 80) ausgibt und mindestens eine Detektiervorrichtung (90) umfasst, die an einer der Tablettenausgaben (70, 80) angeordnet und geeignet ist, dort ausgegebene Tabletten zu detektie- ren, wobei die Detektiervorrichtung (90) mit der Steuerungseinheit (40) verbunden und die Steuerungseinheit (40) ausgebildet ist, eine Anzahl detektierter Tabletten zu zählen. A single-sorter apparatus according to claim 1, 2 or 3, wherein the single-sorter (10) dispenses the discrete tablets to two tablet dispensers (70, 80) and comprises at least one detecting device (90) disposed and suitable on one of the tablet dispensers (70, 80) is to detect tablets dispensed there, wherein the detecting device (90) is connected to the control unit (40) and the control unit (40) is adapted to count a number of detected tablets.
Einzelsortiervorrichtung nach Anspruch 3 und 4, wobei das Normalbetriebprogramm den Normalbetrieb unterdrückt, wenn eine Anzahl während des Testbetriebes gezählter Tabletten nicht einer Sollanzahl entspricht. Einzelsortiervorrichtung nach Anspruch 5, wobei die Sollanzahl durch eine Anzahl der Pressstempel der Tablettiermaschine, eine Anzahl der mit dem Offsetpresskraftsignal beaufschlagten Pressstempel und eine Gesamtzahl während des Testbetriebs sortierter Tabletten bestimmt ist. Single sorting device according to claim 3 and 4, wherein the normal operation program suppresses the normal operation when a number of tablets counted during the test operation does not correspond to a target number. The single sorting apparatus according to claim 5, wherein the target number is determined by a number of the press punches of the tabletting machine, a number of the press die loaded with the offset press force signal, and a total number of tablets sorted during the test operation.
System mit einer Tablettiervorrichtung mit mehreren Pressstempeln und mindestens einer Einzelsortiervorrichtung (10) nach einem der vorhergehenden Ansprüche, wobei der mindestens eine der Pressstempel ein anderes Stempelabbild aufprägt als die verbleibenden Pressstempel. System having a tabletting device with a plurality of press dies and at least one individual sorting device (10) according to one of the preceding claims, wherein the at least one of the press stamps imprints a different stamp image than the remaining press stamps.
Verfahren zur Überprüfung eines ordnungsgemäßen Funktionierens einer Einzelsortiervorrichtung (10) für eine Tablettiervorrichtung mit Pressstempeln, umfassend: A method of verifying the proper functioning of a single sorting apparatus (10) for a tabletting apparatus with press dies, comprising:
Herstellen von Tabletten mit der Tablettiervorrichtung,  Producing tablets with the tabletting device,
Zuführen der Tabletten und den Tabletten zuordenbaren Presskraftsignalen zu der Einzelsortiervorrichtung (10);  Feeding the tablets and the tablets assignable pressing force signals to the single-sorting device (10);
Vergleichen der Presskraftsignale mit einem zugelassenen Presskraftintervall und Klassifizieren der zugeordneten Tabletten als zulässig oder als unzulässig in Abhängigkeit von dem Vergleichsergebnis, wobei die Presskraftsignale ausgewählter Pressstempel vor dem Vergleich mit Offset beaufschlagt werden, wobei mindestens ein aber nicht alle Pressstempel ausgewählt sind und wobei ein Absolutwert des oder der Offsets so gewählt ist, dass die beaufschlagten Presskraftsignale außerhalb des zugelassenen Presskraftintervalls sind, und  Comparing the press force signals with an approved press force interval and classifying the associated tablets as permissible or inadmissible as a function of the comparison result, the press force signals of selected press punches being offset prior to comparison with at least one but not all of the press punches selected and wherein an absolute value of the or the offsets are selected such that the applied press force signals are outside the permitted press force interval, and
Aussortieren unzulässiger Tabletten anhand der Klassifizierung. Verfahren nach Anspruch 8, weiterhin umfassend:  Sort out illegal tablets based on classification. The method of claim 8, further comprising:
Bestimmen einer Anzahl von durch die ausgewählten Pressstempel hergestellter Tabletten,  Determining a number of tablets produced by the selected rams,
Bestimmen einer Anzahl von aussortierten Tabletten, und  Determining a number of screened tablets, and
Vergleich der bestimmten Anzahlen.  Comparison of the determined numbers.
0. Verfahren nach Anspruch 8 oder 9, wobei die ausgewählten Pressstempel so manipuliert sind, dass die mittels der veränderten Pressstempel hergestellten Tabletten ein von einem Prägebild der übrigen hergestellten Tabletten unterscheidbares Prägebild aufweisen, weiterhin umfassend: A method according to claim 8 or 9, wherein the selected dies are manipulated such that the tablets produced by means of the modified dies have a stampable image distinguishable from a stamped image of the other manufactured pellets, further comprising:
Kontrollieren des Prägebilds aussortierter Tabletten.  Check the embossed image of screened tablets.
EP14702239.6A 2013-02-22 2014-01-29 Individual sorting device for sorting tablets, system with such an individual sorting device and with a tableting device, and method for checking an individual sorting device Active EP2958741B1 (en)

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PL14702239T PL2958741T3 (en) 2013-02-22 2014-01-29 Individual sorting device for sorting tablets, system with such an individual sorting device and with a tableting device, and method for checking an individual sorting device

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DE102013202975.6A DE102013202975B4 (en) 2013-02-22 2013-02-22 SINGLE-SORTING DEVICE FOR SORTING TABLETS, SYSTEM WITH SUCH A SINGLE-SORTING DEVICE AND WITH A TABLETING DEVICE AND METHOD FOR VERIFYING A SINGLE-SORTING DEVICE
PCT/EP2014/051727 WO2014127965A1 (en) 2013-02-22 2014-01-29 Individual sorting device for sorting tablets, system with such an individual sorting device and with a tableting device, and method for checking an individual sorting device

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EP2958741B1 (en) 2019-07-24
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DE102013202975B4 (en) 2015-02-05
JP6068682B2 (en) 2017-01-25
US20150375268A1 (en) 2015-12-31
CN105008120A (en) 2015-10-28
PL2958741T3 (en) 2020-01-31
ES2748059T3 (en) 2020-03-12
JP2016508881A (en) 2016-03-24
DE102013202975A1 (en) 2014-08-28
KR101772368B1 (en) 2017-08-28
US9950347B2 (en) 2018-04-24
KR20170054570A (en) 2017-05-17
WO2014127965A1 (en) 2014-08-28

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