EP1247640A1 - Dispositif de triage de comprimés d'une presse à table rotative - Google Patents

Dispositif de triage de comprimés d'une presse à table rotative Download PDF

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Publication number
EP1247640A1
EP1247640A1 EP02002941A EP02002941A EP1247640A1 EP 1247640 A1 EP1247640 A1 EP 1247640A1 EP 02002941 A EP02002941 A EP 02002941A EP 02002941 A EP02002941 A EP 02002941A EP 1247640 A1 EP1247640 A1 EP 1247640A1
Authority
EP
European Patent Office
Prior art keywords
valve
signal
sensor
line
generated
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
EP02002941A
Other languages
German (de)
English (en)
Other versions
EP1247640B1 (fr
Inventor
Jürgen Hinzpeter
Ingo Schmidt
Ulrich Gathmann
Peter Preuss
Werner Seifert
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.)
Fette GmbH
Original Assignee
Fette GmbH
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Filing date
Publication date
Application filed by Fette GmbH filed Critical Fette GmbH
Publication of EP1247640A1 publication Critical patent/EP1247640A1/fr
Application granted granted Critical
Publication of EP1247640B1 publication Critical patent/EP1247640B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting 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
    • B07C5/36—Sorting apparatus characterised by the means used for distribution
    • B07C5/363—Sorting apparatus characterised by the means used for distribution by means of air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses 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
    • B30B11/08—Presses 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S209/00—Classifying, separating, and assorting solids
    • Y10S209/932—Fluid applied to items

Definitions

  • the invention relates to a device for sorting tablets in a rotary tablet press according to the preamble of claim 1.
  • Two methods are known for providing a sorting out.
  • One uses a mechanical sorting gate, which has a baffle, the electromechanical is operated. With the pneumatic reject gate, the faulty one Tablet deflected by a jet of compressed air into the bad channel.
  • the Compressed air jet is generated by a nozzle that can be connected to a compressed air source, a controllable valve being arranged in the line to the nozzle.
  • the invention has for its object a device for pneumatic To sort out tablets in a rotary tablet press, which provides a means of function monitoring.
  • a pressure sensor that emits a sensor signal when that Valve opened or there is a predetermined minimum pressure in the line. Lies there is a sufficiently high pressure and if the valve is opened, there is also in the Line to the nozzle a predetermined pressure that causes the tablet in Is deflected towards the bad channel. It is also a logic evaluation circuit provided which the sensor signal and the control signal for the valve receives. An error signal is generated when the timing relation of the control signal and the sensor signal deviates from a predetermined relation.
  • a control signal for the valve is generated by the machine computer in accordance with the requirements of a stamp-related error
  • the valve opens and compressed air flows to the nozzle.
  • the sensor responds to the pressure increase with a certain time delay and generates a sensor signal.
  • the control of the valve is terminated, which normally the pressure in the line drops only in the form of an impulse from. This pressure drop is detected by the sensor. Since the finding of the Pressure drop and the changeover in the sensor takes a certain amount of time changes the sensor signal only after a certain period of time after the control signal has ended. If the control signal is generated, it is determined that there is no sensor signal appears, this indicates that the valve has not opened or the pressure source generated no pressure. There is therefore an incorrect sorting out.
  • the switch-back time of the Sensors are taken into account. Only when the sensor after the control signal has ended maintains the sensor signal for longer than a predetermined time, can on one Errors can be traced.
  • the device according to the invention is inexpensive in terms of apparatus. It is only a pressure sensor, which is arranged on the line to the nozzle and one Control logic required. The remaining precautions can be done by software in the Machine computers can be realized.
  • Another advantage of the invention is that it also easily Rotary tablet presses can be used, which were previously with a mechanical Sort out switch work.
  • a nozzle 10 can be seen that at one point on Rotor of the tablet press is placed so that it is ejected by an air jet a tablet ejected from the lower stamp can deflect into a bad channel into what is known per se.
  • the nozzle 10 is connected to a line 12, which leads to a pressure source, as indicated by arrow 14.
  • a controllable pneumatic valve 16 On line 12 sits a controllable pneumatic valve 16 which is actuated by an electromagnet 18 becomes.
  • a machine computer 20, as used for the control and monitoring of a such rotary tablet press is also known per se and its Function should not be shown in detail, created according to the Detection of defective tablets a control signal for the valve 16 via a Control line 22. It is understood that the control command to open the valve 16 is generated so that then generated air jet through the nozzle 10 in the tablet distracts into the bad channel at the right moment.
  • the line 12 Downstream of the valve 16, the line 12 is assigned a pressure sensor 24 which determines whether there is an increase in pressure when valve 16 is open.
  • the output signal the sensor 24 is fed to a control logic 28 via a line 26, via the control line 30 also the control signal for the electromagnet 18 or the valve 16 receives.
  • An error signal arrives via a control line 32 to the machine computer 20.
  • the control logic 28 represents a module which consists of discrete semiconductor components and the signals for the Valve and processed accordingly by the pressure sensor.
  • FIGS. 2A to 2C show the function of the device according to FIG. 1 in perfect operation or in the event of errors.
  • the pulses of the control signal 22, 30 can be seen in solid lines (the signals in FIGS. A to C are given the reference numbers of the lines below). As mentioned, they are generated by the computer 20 and go on the electromagnet 18 and in parallel into the control logic 28.
  • the dotted line 42 in FIGS. 2A to 2C denotes the course of the feedback signal 32, which goes from the control logic 28 to the computer 20 arrives.
  • the dashed line 26 denotes the sensor signal. 2A, if a control signal is generated, the pressure sensor 24 responds relatively briefly thereafter and generates a corresponding sensor signal 26, which in the present case goes to the zero level.
  • the feedback signal 32 After the control signal 22 has ended, the feedback signal 32 returns to the original level. However, the response time of the sensor 24 is not zero, so that the sensor signal only returns to the original level after a certain time delay (switch-back delay t R ). This is recognized by the control logic 28 or by the computer 20 as an error-free state.
  • the sensor signal does not jump when a control signal 22, 30 appears from the high to the low level shown in FIG. 2B, the high level of the Feedback signals 32 not. This is recognized as an error. Despite opening the valve no pressure surge was generated.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sorting Of Articles (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
EP02002941A 2001-03-20 2002-02-11 Dispositif de triage de comprimés d'une presse à table rotative Expired - Lifetime EP1247640B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10113414A DE10113414C2 (de) 2001-03-20 2001-03-20 Vorrichtung zum Aussortieren von Tabletten in einer Rundläufer-Tablettenpresse
DE10113414 2001-03-20

Publications (2)

Publication Number Publication Date
EP1247640A1 true EP1247640A1 (fr) 2002-10-09
EP1247640B1 EP1247640B1 (fr) 2004-11-03

Family

ID=7678174

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002941A Expired - Lifetime EP1247640B1 (fr) 2001-03-20 2002-02-11 Dispositif de triage de comprimés d'une presse à table rotative

Country Status (3)

Country Link
US (1) US6918493B2 (fr)
EP (1) EP1247640B1 (fr)
DE (2) DE10113414C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008038070A1 (fr) * 2006-09-29 2008-04-03 Courtoy Nv Système permettant de rejeter des comprimés produits dans une presse à comprimés rotative et procédé de rejet des comprimés
EP2239133A3 (fr) * 2009-04-07 2013-06-19 Kikusui Seisakusyo Ltd. Machine rotative de moulage par compression de poudre
DE202018006065U1 (de) 2017-05-03 2019-02-05 Romaco Kilian Gmbh Rundläufer-Tablettenpresse sowie Tablettenablauf hierfür

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005005012B4 (de) * 2005-02-03 2007-07-05 Fette Gmbh Verfahren und Vorrichtung zur Sortierung von Tabletten an einer Rundläufer-Tablettenpresse
CA2725537C (fr) * 2008-05-27 2016-07-19 Perkinelmer Health Sciences, Inc. Systemes de chromatographie et leurs procedes d'utilisation
AU2010228936B2 (en) * 2009-03-24 2015-07-09 Perkinelmer U.S. Llc Sorbent devices with longitudinal diffusion paths and methods of using them
US8388736B2 (en) 2009-10-02 2013-03-05 Perkinelmer Health Sciences, Inc. Sorbent devices and methods of using them
WO2011159610A1 (fr) 2010-06-14 2011-12-22 Perkinelmer Health Sciences, Inc. Dispositifs fluidiques et procédés d'application associés
GB201219184D0 (en) * 2012-10-25 2012-12-12 Buhler Sortex Ltd Adaptive ejector valve array

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB705000A (en) * 1951-07-19 1954-03-03 Warner Hudnut Inc Improvements in or relating to molded articles and the manufacture thereof
US4542767A (en) * 1983-04-05 1985-09-24 Ross Operating Valve Company Monitor for double safety valves
US5145693A (en) * 1989-12-02 1992-09-08 Firma Wilhelm Fette Gmbh Arrangement for monitoring pressing forces in a pelletizing machine
US5958467A (en) * 1997-02-12 1999-09-28 Glaxo Wellcome Inc. Exit chute for pharmaceutical tablet press machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3997063A (en) * 1974-03-21 1976-12-14 Hoffmann-La Roche Inc. Apparatus for high-speed accurate counting and handling of discrete objects such as tablets
DE3639918A1 (de) * 1986-03-26 1987-10-08 Thomas Eng Inc Vorrichtung zur steuerung und ueberwachung einer rotationstablettierpresse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB705000A (en) * 1951-07-19 1954-03-03 Warner Hudnut Inc Improvements in or relating to molded articles and the manufacture thereof
US4542767A (en) * 1983-04-05 1985-09-24 Ross Operating Valve Company Monitor for double safety valves
US5145693A (en) * 1989-12-02 1992-09-08 Firma Wilhelm Fette Gmbh Arrangement for monitoring pressing forces in a pelletizing machine
US5958467A (en) * 1997-02-12 1999-09-28 Glaxo Wellcome Inc. Exit chute for pharmaceutical tablet press machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008038070A1 (fr) * 2006-09-29 2008-04-03 Courtoy Nv Système permettant de rejeter des comprimés produits dans une presse à comprimés rotative et procédé de rejet des comprimés
US8078329B2 (en) 2006-09-29 2011-12-13 Courtoy Nv System for rejection of tablets produced in a rotary tablet press and a method of rejection of tablets
EP2239133A3 (fr) * 2009-04-07 2013-06-19 Kikusui Seisakusyo Ltd. Machine rotative de moulage par compression de poudre
DE202018006065U1 (de) 2017-05-03 2019-02-05 Romaco Kilian Gmbh Rundläufer-Tablettenpresse sowie Tablettenablauf hierfür

Also Published As

Publication number Publication date
DE10113414A1 (de) 2002-10-02
DE50201428D1 (de) 2004-12-09
US20020134713A1 (en) 2002-09-26
DE10113414C2 (de) 2003-04-24
EP1247640B1 (fr) 2004-11-03
US6918493B2 (en) 2005-07-19

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