EP2110231B1 - Presse rotative pour comprimés - Google Patents

Presse rotative pour comprimés Download PDF

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Publication number
EP2110231B1
EP2110231B1 EP09158067.0A EP09158067A EP2110231B1 EP 2110231 B1 EP2110231 B1 EP 2110231B1 EP 09158067 A EP09158067 A EP 09158067A EP 2110231 B1 EP2110231 B1 EP 2110231B1
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EP
European Patent Office
Prior art keywords
tablet press
rotary tablet
filling
rotor
shift operation
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.)
Active
Application number
EP09158067.0A
Other languages
German (de)
English (en)
Other versions
EP2110231A3 (fr
EP2110231A2 (fr
Inventor
Helmut Haase
Wolfgang Korsch
Helmut Zeddies
Stephan Mies
Walter Hegel
Peter Weisbach
Alf Gärtner
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
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Application filed by Korsch AG filed Critical Korsch AG
Priority to PL09158067T priority Critical patent/PL2110231T3/pl
Publication of EP2110231A2 publication Critical patent/EP2110231A2/fr
Publication of EP2110231A3 publication Critical patent/EP2110231A3/fr
Application granted granted Critical
Publication of EP2110231B1 publication Critical patent/EP2110231B1/fr
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Classifications

    • 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
    • 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
    • B30B11/085—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 for multi-layer articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/028—Loading or unloading of dies, platens or press rams

Definitions

  • Rotary tablet presses are well known. These usually include a rotor which has a die plate with a number of dies arranged on a circumferential line. Each die is assigned an upper and a lower punch, which are guided via guide curves. A material to be pressed can be filled into the dies via at least one filling device. The upper and lower punches are guided over a filling station, a metering station, a pre-printing station and a main printing station.
  • a generic rotary tablet press is for example from the DE 102004040163 B3 which discloses the preamble of claim 1 is known.
  • the DE 102004040163 B3 in particular to gain space in the drive space by eliminating a rotor shaft.
  • the US5151280 A discloses a similar rotary tablet press which is intended to enable the pressure roller of a pressure station to be pulled out of a machine to the side without the drive for its height adjustment being pulled out.
  • mount the pressure roller in a bearing block, which is held with a receiving flange in a guide of a housing by the drive for the pressure roller in the radial direction to the axis of rotation of the die plate and is releasably connected to the housing of the drive.
  • a tablet press in which a compression module comprising a rotor can be swiveled out of the pressing chamber onto a carriage in order to enable simplified cleaning.
  • Rotary tablet presses with which multi-layer tablets, for example two-layer tablets, can be produced are also known.
  • Two filling stations, two metering stations and two pressure stations are arranged around the circumference of the rotor.
  • Rotary tablet presses are known, in particular for laboratory operation, which can be converted from one-shift operation to two-shift operation. This requires relatively complex conversion work, namely the placement of a second filling shoe, as well as an adaptation of the first printing station, the metering unit and the filling curves.
  • a tablet press which provides for a change between single-shift to two-shift operation in connection with rotary tablet presses. This is done by adding or removing an ejector unit between a first and second printing station. As a result, only a semicircle of the rotor is used for tablet production.
  • DE 967 423 discloses a method for the production of single-layer and multi-layer compacts, with the ejector unit being either put into operation or out of operation.
  • the press comprises a plurality of production units, each with a filling, pressing and ejection station.
  • the filling, pressing and ejection stations of all production units can be put into operation in order to maintain a high production rate.
  • the filling and pressing stations are used in the first production units activated, and the ejection stations is not activated, while in the last production unit all filling, pressing and ejection stations are put into operation.
  • the invention is based on the object of creating a rotary tablet press of the generic type, which is characterized by a simple and variable structure. According to the invention, this object is achieved by a rotary tablet press with the features mentioned in claim 1.
  • the rotary tablet press is therefore versatile, in particular usable as a laboratory press, and can thus be quickly adapted to different desired parameters. This applies to both the replacement of individual components and the ability to quickly convert from one-shift to two-shift operation or vice versa.
  • a first filling device and a second filling device are provided, the second filling device being removable.
  • the first filling device can be equipped with an enlarged filling shoe. This advantageously makes it possible to run a higher speed of the rotor during single-shift operation without impairing reliable filling of the dies.
  • a lower pressure roller of a second printing station in two-shift operation takes on a metering function for filling the matrices in one-shift operation.
  • the upper punch guide and / or lower punch guide comprises a plurality of segments which are at least partially exchangeable for at least one other segment with a different curve characteristic. Because of this segmentation of the punch guide, the conversion from two-shift operation to one-shift operation or vice versa can be implemented in a simple manner. Depending on which operating mode is to be used, the corresponding segments are used to guide the upper punch. In this way, in particular, the longer filling distance can also be supported in a one-shift operation.
  • the rotary tablet press comprises drive adapters, which can optionally be equipped with drive shafts for driving Filling devices or parts of filling devices can be effectively connected.
  • drive adapters can optionally be equipped with drive shafts for driving Filling devices or parts of filling devices can be effectively connected.
  • the available drive adapters are either coupled with the corresponding drive shafts or not.
  • the rotor can be pivoted out of a press interior of the rotary tablet press.
  • This advantageously makes it possible either to exchange the entire rotor or, for example, to exchange the segments of the punch guides on the rotor itself or to adapt the upper and / or lower punches according to the desired parameters of the tablets to be pressed.
  • maintenance and / or cleaning work on the rotor or on the interior of the press can be carried out in a simple manner.
  • a preferred embodiment of the invention provides that the rotor comprises a receptacle for a support arm, the support arm being pivotably arranged with a guide column of the rotary tablet press, with a lifting device for lowering or lifting the rotor preferably being integrated into the support arm .
  • the present invention thus relates to a universally applicable rotary tablet press, in particular a laboratory press, which is modular and which allows the replacement of a complete rotor or the conversion of the rotor and the necessary peripheral devices from a two-shift operation to a single-shift operation and vice versa in just a few steps.
  • the simple and uncomplicated conversion option from two-shift operation to one-shift operation is only necessary to remove the upper pressure roller for pressing the first layer - in two-shift operation - and the curve segments of the upper punch adjacent to the upper pressure roller in two-shift operation. These curve segments are exchanged for a curve segment with a straight guide for the upper punch. Furthermore, the filling devices for the first layer and the second layer are removed or converted. In this way, the dosing unit of the filling station for the first shift in two-shift operation can be used at the same time to fill the matrices in one-shift operation - here the filling distance can be easily lengthened by lengthening the filling curve for this dosage in one-shift operation.
  • the lower pressure roller for pressing the first layer takes on the function of a dosing unit and therefore does not need to be removed or converted.
  • an additional agitator of a filling shoe for single-shift operation a longer filling distance of the dies is possible, so that the drive speed / working speed of the rotor can be increased.
  • the laboratory press can be converted from two-shift to one-shift operation or vice versa within a very short time. Complex dismantling or dismantling and assembly work are not required. The few interchangeable parts that are matched to one another can be positioned in a simple manner, predominantly without tools.
  • Another aspect of the invention is the interchangeability of the complete rotor of the rotary tablet press without costly dismantling work.
  • the rotor is pivoted laterally out of its operating position. This means that the rotor is not lifted, but remains in its height position. This makes it possible to dispense with pivoting the pressure rollers and dismantling the guide cams for the stamps and the stamps themselves. It is only necessary to remove the filling curve, since in this area the lower punches engaging in it would stand in the way of a lateral pivoting out.
  • the rotor In its operating position, the rotor is positively connected to the drive or the counter bearing at its frontal drive shaft ends by mechanically acting connecting elements, for example pneumatically or hydraulically actuated connecting elements, so that an exact, reproducible positioning of the rotor is possible.
  • the rotor For dismantling, the rotor is connected to a support arm and swiveled outwards around a column of the laboratory press that is fixed to the frame, as I said, without its height being changed. After pivoting out, the rotor can then be placed on a rotor carriage or the like via a lowering device, for example mechanically, hydraulically or pneumatically. An exchange of the rotor, for example for repair and / or maintenance purposes, or cleaning purposes or the like, is thus easily possible in a simple manner.
  • FIG. 1 shows a highly schematic plan view of a rotary tablet press for the production of two-layer tablets.
  • the tablet press is denoted by 10 as a whole.
  • the tablet press 10 comprises a rotor 12 which has a die table 14 with dies - not shown here - arranged on a circumferential line. Upper and lower punches - also not shown - are assigned to the matrices.
  • the tablet press 10 comprises - seen in the circumferential direction - in succession a first filling device 16, a first printing station 18, a second filling device 20, a second printing station 22 and a main printing station 24 as well as an ejector 26.
  • This first layer is pre-pressed via the first printing station 18.
  • the medium to be pressed in particular again a powder, is then introduced onto the pre-pressed first layer via the second filling device 20.
  • the then two-layer tablet is then pressed via the second pre-pressure station 22.
  • the main pressure station 24 carries out the final compression of the two-layer tablet and the fully pressed two-layer tablets are fed to a collecting container or the like via the ejectors 26.
  • the second filling device 20 is removed or moved out of the active area of the rotor 12.
  • the upper pressure roller of the first printing station 18 is also removed.
  • the first feed device 16 ' is either retained or, as shown, equipped with a larger filling shoe. This enables the dies to be filled on a larger circumferential piece of the pitch circle of the die plate 14.
  • the lower pressure roller of the first printing station 18 takes on the dosing function for the control of the lower punches for the metered introduction of a certain amount into the dies, as is generally known per se.
  • the tablet press 10 can be converted from a two-shift operation (in Figure 1 shown) in a one-shift operation (in Figure 2 shown) can be converted. This conversion can be carried out very quickly without complex assembly work.
  • Figure 3 shows a schematic perspective view of the tablet press 10 in the functional state "two-shift operation".
  • the first feed device 16 ′, the upper pressure roller 28 and the lower pressure roller 30 of the first printing station 18 and the second filling device 20 can be seen.
  • the rotor 12 with the die table 14 is visible.
  • the rotor 12 further comprises a lower punch guide 32 and an upper punch guide 34.
  • the lower punches and the upper punches are displaced in their position relative to the die table 12 by guide cams in a manner known per se. This allows the dosing, pressing and ejection of the tablets to be controlled.
  • the upper punch curve 36 is shown schematically, which consists of different segments. A segment 38, a segment 40 and a segment 42 can be seen.
  • the segment 38 is arranged above the feed device 16 ', there the upper punches are essentially guided in a specific starting position.
  • the segment 40 is arranged, via which the upper punches are guided into the pre-printing position.
  • the segment 42 guides the upper punch following the pressure roller 28 from the pre-pressure position into the filling position in accordance with the arrangement of the second filling device 20. This is known per se.
  • FIG. 4 shows the tablet press 10 in a schematic perspective view in its "single-shift operation" operating state. Identical parts are again provided with the same reference numerals and are not explained again. It is clear that the upper pressure roller 28 and the segments 40 and 42 of the upper punch guide 36 have been removed. The segments 40 and 42 are replaced by a new segment 44 so that the upper punches are also guided in a filling position in the area of the current segment 44, that is to say above the dies.
  • FIG 4 also shows that the second filling device 20 is dismantled.
  • a drive shaft 46 of the second filling device 20 ( Figure 3 ) has become vacant and is being relocated to like it Figure 4 made clear.
  • the first feed device 16 is exchanged for a feed device 16 ', of which only the agitator blades 48 of a corresponding filling shoe are shown here for the sake of clarity.
  • the drive shaft 46 is now used to drive the second agitator blade 48 'while the drive shaft 46' of the first feed device 16 ( Figure 3 ) remains and is now used to drive the first agitator blade 48.
  • the first feed device 16 is virtually retained and is supplemented by the second agitator blade 48 '.
  • Corresponding drive adapters 47 and 47 ' are provided in a base plate 11, which are operatively connected or can be operatively connected to the drive shafts 46 and 46'.
  • the pressure roller 30 of the first printing station 18 ( Figure 1 respectively Figure 3 ) now takes on a metering function for controlling the lower ram via the pitch circle of the feed device 16 '. It becomes clear that this creates a longer filling distance in a simple manner during one-shift operation, so that reliable filling of all matrices is possible even at high speeds.
  • Figure 5 shows schematically the development of the rotor 12 of the tablet press 10.
  • the main pressure station 24 with upper main pressure roller 50 and lower main pressure roller 52 can be seen.
  • the first pre-pressure or pressure station 18 and the second pre-pressure or pressure station 22 are shown.
  • the first prepress station 18 has. the upper pressure roller 28 and the lower pressure roller 30.
  • the second pre-printing station 22 has the upper pressure roller 54 and the lower pressure roller 56.
  • the development of the upper punch curve 60 and the lower punch curve 62 is shown.
  • the dies are first filled before the first printing station 18, the first layer is pre-pressed in the printing station 18, filled before the second printing station 22, the second layer is pre-pressed in the printing station 22 and main pressing in the main printing station 24.
  • the finished pressed tablet was ejected, here indicated by an arrow 64.
  • the upper pressure roller 28 of the first printing station 18 is removed and the segments 40 and 42 of the upper punch guide 60 are exchanged for segment 44.
  • the lower pressure roller 30 now takes on the function of a metering roller.
  • FIG. 6 shows a schematic view of the tablet press 10, it being made clear here that the rotor 12 can be pivoted completely out of a press interior 70.
  • the rotor 12 is held by a support arm 72 which is articulated on a guide column 74 of the tablet press 10.
  • the rotor 12 is simply pivoted pivoted in its horizontal plane out of the press interior 70 into the position shown. This can be done without dismantling work on the rotor 12.
  • the pressure rollers here the first upper pre-pressure roller, which is visible here as an example
  • the punch guides the individual curve segments and the punch themselves can be pivoted out without having to be dismantled beforehand.
  • the pivoted-out rotor 12 can be set down on a rotor carriage (not shown) or the like via a lifting device integrated in the support arm 72, for example pneumatically. It is important that the rotor 12 is swiveled out of the press interior 70 without raising or lowering it. This means that it remains essentially in its horizontal plane.
  • a drive coupling with a drive machine of the tablet press 10 or a counter bearing takes place via the respective end faces 76 and 78 of the rotor 12 to corresponding counterparts for a force-fit assembly.
  • Figure 7 shows that the first feed device 16 'and the second filling device 20 as well as the drive shaft 46' are removed here. The filling curve is also removed.
  • Figure 8 shows that the parts remaining on the tablet press 10, namely the guide or holding elements for the feed device 16 ′ or filling device 20, (do not have to be pivoted) are pivoted out of the area of the rotor 12.
  • dismantled parts and the, as in Figure 8 shown, pivoted parts is a pivoting of the rotor 12 from the press interior 70, as shown in FIG Figure 6 made clear is easily possible. This allows simple handling of the tablet press 10, in particular for cleaning purposes, repair purposes or exchanging the punch curves or matrices on the rotor 12. Complicated dismantling work is not necessary.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Basic Packing Technique (AREA)

Claims (6)

  1. Presse rotative pour comprimés qui comprend un rotor, au moins un poste de remplissage et au moins un poste d'impression ainsi que des guides de poinçon inférieur et supérieur,
    dans laquelle
    la presse rotative pour comprimés (10) a une structure modulaire, dans laquelle les modules individuels sont disposés de manière amovible et/ou convertible dans la presse rotative pour comprimés (10) pour convertir la presse rotative pour comprimés (10) d'un fonctionnement à deux équipes à un fonctionnement à une seule équipe ou vice versa,
    caractérisée en ce que
    le rotor (12) est pivotable hors d'un intérieur de presse (70) de la presse rotative pour comprimés (10),
    un premier dispositif de remplissage (16) et un second dispositif de remplissage (20) sont prévus, dans laquelle le second dispositif de remplissage (20) est amovible et
    le guide de poinçon supérieur (34) et/ou le guide de poinçon inférieur (32) comprend une pluralité de segments (38, 40, 42) qui sont au moins partiellement échangeables contre au moins un autre segment (44) avec une caractéristique de courbe différente.
  2. Presse rotative pour comprimés selon l'une des revendications précédentes,
    caractérisée en ce que
    le premier dispositif de remplissage (16) peut être équipé d'un sabot de remplissage élargi.
  3. Presse rotative pour comprimés selon l'une des revendications précédentes,
    caractérisée en ce que
    un rouleau de pression inférieur (30) d'un second poste d'impression (18) en fonctionnement à deux équipes assure une fonction de dosage pour le remplissage des matrices en fonctionnement à une équipe.
  4. Presse rotative pour comprimés selon l'une des revendications précédentes,
    caractérisée en ce que
    la presse rotative pour comprimés (10) comprend des adaptateurs d'entraînement (47, 47') qui peuvent éventuellement être reliés fonctionnellement à des arbres d'entraînement (46, 46') pour entraîner des dispositifs de remplissage ou des pièces de dispositifs de remplissage.
  5. Presse rotative pour comprimés selon l'une des revendications précédentes,
    caractérisée en ce que
    le rotor (12) comprend un réceptacle pour un bras support (72), dans laquelle le bras support (72) est disposé de manière pivotante sur une colonne de guidage (74) de la presse rotative pour comprimés (10).
  6. Presse rotative pour comprimés selon l'une des revendications précédentes,
    caractérisée en ce que
    un dispositif de levage pour recouvrir ou soulever le rotor (12) est intégré dans le bras support (72).
EP09158067.0A 2008-04-18 2009-04-16 Presse rotative pour comprimés Active EP2110231B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09158067T PL2110231T3 (pl) 2008-04-18 2009-04-16 Obrotowa prasa do tabletek

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008020759 2008-04-18

Publications (3)

Publication Number Publication Date
EP2110231A2 EP2110231A2 (fr) 2009-10-21
EP2110231A3 EP2110231A3 (fr) 2011-03-30
EP2110231B1 true EP2110231B1 (fr) 2021-03-03

Family

ID=40679442

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09158067.0A Active EP2110231B1 (fr) 2008-04-18 2009-04-16 Presse rotative pour comprimés

Country Status (5)

Country Link
US (1) US8025498B2 (fr)
EP (1) EP2110231B1 (fr)
DE (1) DE102009002449B4 (fr)
ES (1) ES2860628T3 (fr)
PL (1) PL2110231T3 (fr)

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EP4324449A1 (fr) * 2022-08-19 2024-02-21 GEA Process Engineering nv Presse à comprimés rotative comprenant un dispositif de remplissage et un ensemble support

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DE102011101291B4 (de) * 2011-05-10 2014-01-23 Fette Compacting Gmbh Druckeinrichtung für eine Presse und Rundläuferpresse
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EP2977195A1 (fr) 2014-07-21 2016-01-27 M & R Automation GmbH dispositif et procédé de fabrication de comprimés multi-couches
EP3072675A1 (fr) 2015-03-27 2016-09-28 Korsch AG Presse rotative dotée d'au moins une station de rouleaux presseurs pouvant être fixée sur une plaque de support et procédé de fixation et de libération de la station de rouleaux presseurs
DE102016211290B4 (de) * 2016-06-08 2018-07-19 Schunk Kohlenstofftechnik Gmbh Vorrichtung und Verfahren zur Herstellung eines Pressformkörpers
DE102018122394B4 (de) * 2018-09-13 2020-09-10 Fette Compacting Gmbh Rotor für eine Rundläuferpresse
CN109968726B (zh) * 2019-05-08 2024-12-31 聊城泰合制药装备有限公司 一种用于双色鱼饵成型的旋转式压片机
JP7394988B2 (ja) 2019-10-30 2023-12-08 コルシュ アーゲー 加圧ローラーユニットに対する外部軸受け部を備えるロータリープレスの加圧ローラーステーション
CN110861197B (zh) * 2019-11-15 2020-12-22 亳州职业技术学院 一种建筑建模用小型水泥灌装机的使用方法
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Publication number Priority date Publication date Assignee Title
EP4324449A1 (fr) * 2022-08-19 2024-02-21 GEA Process Engineering nv Presse à comprimés rotative comprenant un dispositif de remplissage et un ensemble support
WO2024038213A1 (fr) * 2022-08-19 2024-02-22 Gea Process Engineering Nv Presse à comprimés rotative comprenant un dispositif de remplissage et un ensemble de support

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US20090263532A1 (en) 2009-10-22
PL2110231T3 (pl) 2021-09-06
US8025498B2 (en) 2011-09-27
EP2110231A3 (fr) 2011-03-30
DE102009002449B4 (de) 2022-12-22
EP2110231A2 (fr) 2009-10-21
ES2860628T3 (es) 2021-10-05
DE102009002449A1 (de) 2009-10-22

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