EP1050398B1 - Rotary tabletting press - Google Patents

Rotary tabletting press Download PDF

Info

Publication number
EP1050398B1
EP1050398B1 EP00104902A EP00104902A EP1050398B1 EP 1050398 B1 EP1050398 B1 EP 1050398B1 EP 00104902 A EP00104902 A EP 00104902A EP 00104902 A EP00104902 A EP 00104902A EP 1050398 B1 EP1050398 B1 EP 1050398B1
Authority
EP
European Patent Office
Prior art keywords
clamping
drive shaft
die plate
tablet press
rotary tablet
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.)
Expired - Lifetime
Application number
EP00104902A
Other languages
German (de)
French (fr)
Other versions
EP1050398A3 (en
EP1050398A2 (en
Inventor
Jürgen Hinzpeter
Ulrich Zeuschner
Hans-Joachim Pierags
Nils Petersen
Peter Lüneburg
Elke Wittenberg
Ulrich Arndt
Hans Wolf
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
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 Fette GmbH filed Critical Fette GmbH
Publication of EP1050398A2 publication Critical patent/EP1050398A2/en
Publication of EP1050398A3 publication Critical patent/EP1050398A3/en
Application granted granted Critical
Publication of EP1050398B1 publication Critical patent/EP1050398B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0023—Drive arrangements for movable carriers, e.g. turntables
    • 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
    • B30B15/026—Mounting of dies, platens or press rams

Definitions

  • the invention relates to a rotary tablet press.
  • Such tablet presses have a so-called die plate with die holes, with which upper and lower stamp cooperate, which in guides the die plate are guided.
  • the movement of upper and lower punches is partly controlled by curves.
  • Corresponding discs or rings are below and arranged above the die plate fixed to the housing, while the die plate rotatably mounted and from an underneath arranged upright shaft is drivable. For reasons of cleaning or changing the stamp it is from Time to time required to retool the machine. From EP 0 288 798 is known, the Curves with holders provided by releasable connection means with fixed Housing parts are connectable.
  • the die plate is rotated by a drive shaft, the rotatably mounted in the machine housing below the die plate and of a suitable drive is driven.
  • the connection between the parts is preferably carried out by a suitable screw. Before removing the Matrizenin is therefore to solve this screw. Conversely, the screwing after replacing a die plate, press to connect the parts together. This process is relatively expensive, especially the Access to the screw is difficult.
  • the invention is therefore based on the object of a rotary tablet press create, in which the connection between die plate and drive shaft fast can be prepared and solved.
  • a tablet press with a such connection is from the document JP-A-11 019 799 is known.
  • the tablet press according to the invention is at the ends facing each other of die plate and drive shaft a quick release provided, the Parts are arranged in cavities of die plate and drive shaft.
  • the quick release is actuated by an operating rod, which in one axial channel of the drive shaft is movably mounted and by an actuator can be actuated to selectively tighten or loosen the drive plate and drive shaft.
  • the quick release provides movably mounted means, which optionally with Locking or clamping surfaces of the drive plate are engageable to the drive plate rotatably to couple with the drive shaft. Therefore, the However, arranged means are arranged in the cavity of the drive shaft, however from the cavity over the end of the drive shaft before and engage in the facing Cavity of the die plate to selectively lock or release.
  • the actuation of these means via an actuating rod in the hollow Mit Sprinte, wherein the actuating rod, however, preferably axially movable is stored to operate the quick release.
  • the actuation of the actuating rod must be done from outside the drive shaft, with a separate Drive is provided. Alternatively, an operation by hand is conceivable.
  • a Clamping be provided, for example, a conical annular surface with an operable by the actuating rod clamping element selectively engaged can be brought. Upon actuation of the clamping element this engages the clamping surface and pulls Matrizenin and drive shaft against each other.
  • the actuation of the clamping element takes place according to a further embodiment of Invention preferably with the aid of a clamping cone, with the axially movable Actuating rod is connected.
  • the clamping cone acts with a conical surface an actuating surface of the clamping element together, so this in turn with the clamping surface mainly interacts with the die plate.
  • Preferably is a plurality of claw-like circumferentially evenly distributed Clamping elements provided about an axis approximately perpendicular to the axis of the Drive shaft are pivotally mounted in the cavity of the drive shaft.
  • the clamping cone can according to a further embodiment of the invention in the axial Distance to the clamping cone surface have a conical spreading surface, which with a conical actuating surface on the clamping element cooperates such that the Clamping element is moved to the release position, when the spreading surface with the Actuating surface is engaged.
  • This embodiment is an alternative to a possible spring loading of the clamping element such that it in the Release position is biased.
  • clamping elements can according to an embodiment
  • the invention not only be pivotable, but also limited radially. movable.
  • the clamping elements with oppositely directed conical clamping surfaces provided and have die plate and drive shaft each have a clamping surface, where the angles of the clamping surfaces are also oppositely directed, it is possible, by radial adjustment of the clamping elements, an axial force between the to produce both parts to be clamped.
  • radially outer bearing approaches that interact with a bearing ring, the cooperates with a shoulder of the cavity of the drive shaft.
  • the bearing ring which is preferably made of plastic, can be limited by radial webs Have storage chambers, in which the bearing lugs of the clamping elements added are.
  • the drive shaft has a centering ring on, which surrounds the upper part of the drive shaft and the driving surface survives to the top. Its inner diameter is such that a End portion of an axial cylindrical collar of the die plate fitting in the Can engage centering.
  • the actuating rod at a distance from Quick release to adjust there are various possibilities conceivable, the actuating rod at a distance from Quick release to adjust.
  • the rod in the Distance from the free upper end has an adjusting thread on which a spindle nut sitting.
  • the spindle nut is suitably axially in the channel Drive shaft secured.
  • a rotary drive side of the drive shaft has an adjusting on, which cooperates via an opening in the drive shaft with the spindle nut.
  • the spindle nut can therefore have a toothing on the outside and the Adjusting a complementary toothing to accomplish a rotation of the nut.
  • the rotary drive adjustably mounted to the adjusting wheel during normal operation of the drive shaft outside the range of action of the drive shaft to bring.
  • This can be a Linear drive, for example, an adjusting cylinder are provided, the Rotary drive between two positions back and forth adjusted.
  • FIG annular cylindrical collar 12 From a die plate 10 of a not shown in detail tablet rotary press, as described for instance from EP 0 288 798, in FIG annular cylindrical collar 12 at the lower end of the die plate 10 shown in section.
  • the collar 12 has a cylindrical driver surface 14 at the lower free end.
  • a cylindrical cavity 16 is formed, of the annular surface 14th is accessible from.
  • the cavity 16 merges into a narrower diameter bore 18, which will not be discussed further below.
  • the wall of the cavity 16 has a thread, and a ring 20 with external thread is screwed into the cavity 16, wherein a flange 22 of the ring 20 is a positive fit with a corresponding recess on the end face of the die plate 10 cooperates and limits the screwing of the ring 20.
  • the ring 20 has a conical clamping surface 24 which faces the bottom of the cavity 16.
  • a drive shaft 26 for the die plate 10, in a manner not shown and Way is connected to a rotary drive for rotating the die plate 10 ,. provided at the upper end with a diameter-expanded portion 28.
  • the cavity 30 is threaded provided, in which a further clamping ring 32 is screwed.
  • the clamping ring 32 has a clamping surface 34 which is conical and which faces the bottom of the cavity 30 is. The clamping surfaces 24, 34 are thus directed opposite.
  • the cavity 30 merges into an axial channel 36 of the drive shaft 26.
  • clamping elements 38 are arranged. There are-eight altogether Clamping elements 36 are provided. As is apparent from Fig. 3, the clamping elements in Cross-section segmented and arranged at uniform circumferential intervals. Each clamping element 38 has a first outwardly facing conical clamping surface 40 on and an outer conical clamping surface 42 at an axial distance from Clamping surface 40.
  • the clamping surfaces 40, 42 are designed so that they are in the position, which is shown on the left side of Fig. 1, with the clamping surfaces 24, 34 of the clamping rings 32, 20 cooperate and generate an axial force of the rings on each other. This will be discussed in more detail below.
  • the clamping surface 42 is formed on a bearing lug 44, which in a bearing ring 46 limited by an axis approximately perpendicular to the axis of the drive shaft 26 is pivotally mounted. In addition, the clamping elements can be moved radially limited become.
  • the bearing ring 46 which is preferably molded from plastic, sits on Bottom of the cavity 30, which is at the same paragraph at the transition to the axial channel 36 of the drive shaft 26th
  • each clamping element 38 has a first conical actuating surface 48 at approximately equal to the clamping surface 20. It also has a second actuating surface 50 at the bottom on that a certain distance in the channel 36 into stands. Finally, each clamping element 38 has a third conical actuating surface 52 on, between the actuating surfaces 48, 50 and below the clamping surface 42 lies.
  • FIG. 3 shows the clamping elements in the position as shown in the taken on the left side of Fig. 1.
  • Actuating rod 54 is arranged within the drive shaft 26, i. in the bore or in the channel 36. It is like the two representations in FIG. 1 to recognize, adjustable in the axial direction.
  • a clamping cone 56 is connected, which, as is also apparent from Fig. 1 results, between two end positions back and forth.
  • the clamping cone 56 serves to actuate the clamping elements 38.
  • the clamping elements 38 have a clamping position, which is shown on the left side in Fig. 1 and a release position, which is shown on the right side of Fig. 1.
  • the clamping position is therefore in reaches a position of the clamping cone 56, as shown on the left side in Fig. 1 is.
  • the release position corresponds to a position of the clamping cone 56, as they is shown on the right side in Fig. 1.
  • the clamping cone 56 has an upper or first conical surface 58, which cooperates with the actuating surface 48.
  • Of the Tensioning cone 56 has a lower tapered expansion surface 60, with the actuating surface 50 interacts.
  • he has a third conical surface 62 between the described conical surfaces, which cooperates with the actuating surface 52.
  • the conical surface 60 acts with the actuating surface 50 of the clamping elements 38 together, so that it pivots in one position be as shown on the right side in Fig. 1.
  • the Lageransatz 44 of Clamping elements 38 therefore lies against the associated inner edge of the bearing ring 46 and is tilted, wherein the tilting movement is limited by the stop of the Approach 44 against the clamping surface 34 of the clamping ring 32. As can be seen in this position of the clamping elements 38 of the collar 12 of the die plate 10 readily be lifted off to the top.
  • the conical surfaces 58 and 62 act with the associated Actuating surfaces 48, 52 of the clamping elements 38 together. These are going out the position shown in Fig. 1 on the right side in the on the left side shown pivoted position, whereby the clamping surfaces 40, 42 with the associated Clamping surfaces 24, 34 of the clamping rings 20, 32 cooperate and a considerable generate axial force, whereby the end surfaces of die plate 10 and Drive shaft 26 are braced against each other, so that a rotational force transmitted can be.
  • the axial force acting on the two parts becomes primarily caused by the fact that the clamping elements 38 also pressed apart radially become.
  • a centering ring 64th attached, which protrudes a little beyond the end surface of the drive shaft 26.
  • the slightly reduced in diameter Section at the free end can be inserted into the centering ring 64 fitting. Therefore, the parts to be coupled have a centered orientation each other before they braced against each other with the described quick release become.
  • a bearing ring 70 is screwed into the bore 36. He serves for storage and guidance of the actuating rod 54th
  • Fig. 2 is very schematically the axial actuation of the actuating rod 54th shown.
  • the actuating rod 54 has a thread 72nd on which a spindle nut 74 is seated.
  • the spindle nut 74 is in a recess 76 of the shaft 26 secured axially.
  • a backup with a Provide plastic bushing, as arranged in Fig. 1 under the bearing ring 70 and there is designated 78.
  • the shaft 26 has a radial recess 80.
  • gear 82 gear 82, with an outer Teeth of the spindle nut 74 cooperates.
  • the gear 82 is of a Electric motor 84 driven and thereby rotates the spindle nut 74, causing the Rod 54 moves depending on the direction of rotation upwards or downwards.
  • the motor 84 is along a housing-fixed guide 86 movably mounted and can with the help of a Adjusting cylinder 88 along the guide 86 are moved to the gear 82nd outside the drive shaft 26 to bring.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Press Drives And Press Lines (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Description

Die Erfindung bezieht sich auf eine Rundläufer-Tablettenpresse.The invention relates to a rotary tablet press.

Derartige Tablettenpressen weisen eine sogenannte Matrizenscheibe auf mit Matrizenbohrungen, mit denen Ober- und Unterstempel zusammenwirken, welche in Führungen der Matrizenscheibe geführt sind. Die Bewegung von Ober- und Unterstempel wird zum Teil von Kurven gesteuert. Entsprechende Scheiben oder Ringe sind unterhalb und oberhalb der Matrizenscheibe gehäusefest angeordnet, während die Matrizenscheibe drehbar gelagert und von einer darunter angeordneten aufrechten Welle antreibbar ist. Aus Gründen der Reinigung oder des Wechsels der Stempel ist es von Zeit zu Zeit erforderlich, die Maschine umzurüsten. Aus EP 0 288 798 ist bekannt, die Kurven mit Haltern zu versehen, die durch lösbare Verbindungsmittel mit ortsfesten Gehäuseteilen verbindbar sind. Über Mitnehmer sind die Kurven so mit der Matrizenscheibe verbunden, daß nach einem Lösen der Verbindungsmittel die Matrizenscheibe zusammen mit dem Ober- und Unterstempel und den Kurven von der Antriebswelle abgehoben werden kann. Mit Hilfe eines Tragarms oder dergleichen, der seitlich eingefahren wird, kann dann das gesamte Paket seitlich aus der Maschine herausbewegt werden.Such tablet presses have a so-called die plate with die holes, with which upper and lower stamp cooperate, which in guides the die plate are guided. The movement of upper and lower punches is partly controlled by curves. Corresponding discs or rings are below and arranged above the die plate fixed to the housing, while the die plate rotatably mounted and from an underneath arranged upright shaft is drivable. For reasons of cleaning or changing the stamp it is from Time to time required to retool the machine. From EP 0 288 798 is known, the Curves with holders provided by releasable connection means with fixed Housing parts are connectable. About drivers are the curves so with the die plate connected, that after a release of the connecting means the die plate together with the upper and lower punches and the curves of the drive shaft can be lifted. With the help of a support arm or the like, the side retracted is, then the entire package can be moved laterally out of the machine become.

Bei derartigen Rundläuferpressen erfolgt die eigentliche Betätigung der Ober- und Unterstempel durch sogenannte Druckrollen, die ggf. in einem gehäusefesten Lager gelagert sind. Für die Entfernung des beschriebenen Matrizenscheibenpaketes ist auch erforderlich, die Druckrollen entweder zu verstellen oder zu demontieren, damit die beschriebene Entfernung des Matrizenscheibenpakets stattfinden kann. Aus EP 0 460 295 ist auch bekannt, die Druckrollen in einem Lagerbock zu lagern, der mit einem Aufnahmeflansch in einer Führung eines Gehäuses vom Antrieb für die Druckrolle in radialer Richtung zu der Drehachse der Matrizenscheibe verschiebbar gehalten ist. Der Lagerbock ist mit dem Gehäuse des Antriebs lösbar verbunden.In such rotary presses, the actual operation of the upper and Lower punch by so-called pressure rollers, possibly in a housing-fixed bearing are stored. For the removal of the Matrizenscheibenpaketes described also required to either adjust or dismantle the pressure rollers so that the described removal of Matrizenscheibenpakets can take place. From EP 0 460 295 is also known to store the pressure rollers in a bearing block, with a Mounting flange in a guide of a housing from the drive for the pressure roller in Radial direction is slidably held to the axis of rotation of the die plate. The bearing block is detachably connected to the housing of the drive.

Wie erwähnt, wird die Matrizenscheibe von einer Antriebswelle in Drehung versetzt, die im Maschinengehäuse unterhalb der Matrizenscheibe drehbar gelagert und von einem geeigneten Antrieb angetrieben ist. Die Verbindung zwischen den Teilen erfolgt vorzugsweise durch eine geeignete Verschraubung. Vor dem Entfernen der Matrizenscheibe ist daher diese Verschraubung zu lösen. Umgekehrt muß die Verschraubung nach dem erneuten Aufsetzen einer Matrizenscheibe betätigt werden, um die Teile miteinander zu verbinden. Dieser Vorgang ist relativ aufwendig, zumal der Zugang zu den Schraubstellen schwierig ist.As mentioned, the die plate is rotated by a drive shaft, the rotatably mounted in the machine housing below the die plate and of a suitable drive is driven. The connection between the parts is preferably carried out by a suitable screw. Before removing the Matrizenscheibe is therefore to solve this screw. Conversely, the screwing after replacing a die plate, press to connect the parts together. This process is relatively expensive, especially the Access to the screw is difficult.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Rundläufer-Tablettenpresse zu schaffen, bei der die Verbindung zwischen Matrizenscheibe und Antriebswelle schnell hergestellt und gelöst werden kann. Eine Tablettenpresse mit einer derartigen Verbindung ist aus dem Dokument JP-A-11 019 799 bekannt.The invention is therefore based on the object of a rotary tablet press create, in which the connection between die plate and drive shaft fast can be prepared and solved. A tablet press with a such connection is from the document JP-A-11 019 799 is known.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This object is solved by the features of patent claim 1.

Bei der erfindungsgemäßen Tablettenpresse ist an den einander zugekehrten Enden von Matrizenscheibe und Antriebswelle ein Schnellverschluß vorgesehen, dessen Teile in Hohlräumen von Matrizenscheibe und Antriebswelle angeordnet sind. Die Betätigung des Schnellverschlusses erfolgt über eine Betätigungsstange, die in einem axialen Kanal der Antriebswelle beweglich gelagert ist und von einer Betätigungsvorrichtung betätigbar ist zum wahlweisen Verspannen oder Lösen von Mitnehmerscheibe und Antriebswelle.In the tablet press according to the invention is at the ends facing each other of die plate and drive shaft a quick release provided, the Parts are arranged in cavities of die plate and drive shaft. The The quick release is actuated by an operating rod, which in one axial channel of the drive shaft is movably mounted and by an actuator can be actuated to selectively tighten or loosen the drive plate and drive shaft.

Der Schnellverschluß sieht beweglich gelagerte Mittel vor, welche wahlweise mit Verriegelungs- oder Spannflächen der Mitnehmerscheibe in Eingriff bringbar sind, um die Mitnehmerscheibe drehfest mit der Antriebswelle zu koppeln. Daher sind die beschriebenen Mittel in dem Hohlraum der Antriebswelle angeordnet, stehen jedoch aus dem Hohlraum über das Ende der Antriebswelle vor und greifen in den zugekehrten Hohlraum der Matrizenscheibe, um diese wahlweise zu verriegeln oder freizugeben. Die Betätigung dieser Mittel erfolgt über eine Betätigungsstange in der hohlen Mitnehmerwelle, wobei die Betätigungsstange jedoch vorzugsweise axialbeweglich gelagert ist, um den Schnellverschluß zu betätigen. Die Betätigung der Betätigungsstange muß von außerhalb der Antriebswelle erfolgen, wobei hierfür ein gesonderter Antrieb vorgesehen ist. Alternativ ist auch eine Betätigung von Hand denkbar.The quick release provides movably mounted means, which optionally with Locking or clamping surfaces of the drive plate are engageable to the drive plate rotatably to couple with the drive shaft. Therefore, the However, arranged means are arranged in the cavity of the drive shaft, however from the cavity over the end of the drive shaft before and engage in the facing Cavity of the die plate to selectively lock or release. The actuation of these means via an actuating rod in the hollow Mitnehmerwelle, wherein the actuating rod, however, preferably axially movable is stored to operate the quick release. The actuation of the actuating rod must be done from outside the drive shaft, with a separate Drive is provided. Alternatively, an operation by hand is conceivable.

Es sind verschiedene Konstruktionen für den Schnellverschluß und die Art der Drehkopplung denkbar. Eine sieht erfindungsgemäß vor, daß Antriebswelle und Matrizenscheibe gegeneinander anlegbare ringförmige Mitnehmerflächen aufweisen, die mit Hilfe des Schnellverschlusses gegeneinander verspannt werden. Es ist denkbar, die Mitnehmerflächen formschlüssig miteinander in Eingriff zu bringen, d.h. klauenähnlich auszugestalten. Sie können jedoch auch glatt sein, wenn eine ausreichende Preßkraft erzeugt wird zur kraftschlüssigen Drehkraftübertragung.There are various designs for the quick release and the type of rotary coupling conceivable. One provides according to the invention, that drive shaft and die plate have against one another engagable annular driving surfaces, with Help the quick release to be braced against each other. It is conceivable that Engaging driver surfaces positively, i. steal similar embody. However, they can also be smooth if a sufficient pressing force is generated for non-positive torque transmission.

Des weiteren kann im Hohlraum von Matrizenscheibe und/oder Antriebswelle eine Spannfläche vorgesehen werden, beispielsweise eine kegelige Ringfläche, die mit einem von der Betätigungsstange betätigbaren Spannelement wahlweise in Eingriff bringbar ist. Bei Betätigung des Spannelements greift dieses an der Spannfläche an und zieht Matrizenscheibe und Antriebswelle gegeneinander. Furthermore, in the cavity of the die plate and / or drive shaft a Clamping be provided, for example, a conical annular surface with an operable by the actuating rod clamping element selectively engaged can be brought. Upon actuation of the clamping element this engages the clamping surface and pulls Matrizenscheibe and drive shaft against each other.

Die Betätigung des Spannelements erfolgt nach einer weiteren Ausgestaltung der Erfindung vorzugsweise mit Hilfe eines Spannkegels, der mit der axialbeweglichen Betätigungsstange verbunden ist. Der Spannkegel wirkt mit einer Kegelfläche mit einer Betätigungsfläche des Spannelements zusammen, damit dieses seinerseits mit der Spannfläche vorwiegend mit der Matrizenscheibe zusammenwirkt. Vorzugsweise ist eine Mehrzahl von klauenartigen, in Umfangsrichtung gleichmäßig verteilten Spannelementen vorgesehen, die um eine Achse annähernd senkrecht zur Achse der Antriebswelle im Hohlraum der Antriebswelle schwenkbar gelagert sind.The actuation of the clamping element takes place according to a further embodiment of Invention preferably with the aid of a clamping cone, with the axially movable Actuating rod is connected. The clamping cone acts with a conical surface an actuating surface of the clamping element together, so this in turn with the clamping surface mainly interacts with the die plate. Preferably is a plurality of claw-like circumferentially evenly distributed Clamping elements provided about an axis approximately perpendicular to the axis of the Drive shaft are pivotally mounted in the cavity of the drive shaft.

Der Spannkegel kann nach einer weiteren Ausgestaltung der Erfindung im axialen Abstand zur Spannkegelfläche eine kegelige Spreizfläche aufweisen, die mit einer konischen Betätigungsfläche am Spannelement zusammenwirkt derart, daß das Spannelement in die Freigabestellung bewegt wird, wenn die Spreizfläche mit der Betätigungsfläche in Eingriff gebracht wird. Diese Ausgestaltung ist eine alternative zu einer möglichen Federbeaufschlagung des Spannelements derart, daß es in die Freigabestellung vorgespannt ist.The clamping cone can according to a further embodiment of the invention in the axial Distance to the clamping cone surface have a conical spreading surface, which with a conical actuating surface on the clamping element cooperates such that the Clamping element is moved to the release position, when the spreading surface with the Actuating surface is engaged. This embodiment is an alternative to a possible spring loading of the clamping element such that it in the Release position is biased.

Es ist denkbar, im Hohlraum von Matrizenscheibe und Antriebswelle durch entsprechende formgebende Bearbeitung Spannflächen herzustellen. Vorzugsweise ist jedoch ein separater Spannring vorgesehen, der im Hohlraum angebracht ist, vorzugsweise dadurch, daß er in den Hohlraum geschraubt ist, mithin an der Außenseite ein Gewinde aufweist.It is conceivable in the cavity of die plate and drive shaft by appropriate shaping machining to produce clamping surfaces. However, it is preferable provided a separate clamping ring which is mounted in the cavity, preferably in that it is screwed into the cavity, thus on the outside Has thread.

Sind mehrere Spannelemente vorgesehen, dann können diese nach einer Ausgestaltung der Erfindung nicht nur schwenkbar sein, sondern auch radial begrenzt. beweglich. Sind die Spannelemente mit entgegengesetzt gerichteten konischen Spannflächen versehen und haben Matrizenscheibe und Antriebswelle jeweils eine Spannfläche, wobei die Winkel der Spannflächen ebenfalls entgegengesetzt gerichtet sind, ist es möglich, durch radiale Verstellung der Spannelemente eine axiale Kraft zwischen den beiden zu verspannenden Teilen herzustellen. Um eine Schwenklagerung der Spannelemente zu bewirken, haben diese nach einer Ausgestaltung der Erfindung radial außen liegende Lageransätze, die mit einem Lagerring zusammenwirken, der mit einem Absatz des Hohlraums der Antriebswelle zusammenwirkt. Der Lagerring, der vorzugsweise aus Kunststoff geformt ist, kann durch radiale Stege begrenzte Lagerkammern aufweisen, in welchen die Lageransätze der Spannelemente aufgenommen sind.If several clamping elements provided, then they can according to an embodiment The invention not only be pivotable, but also limited radially. movable. Are the clamping elements with oppositely directed conical clamping surfaces provided and have die plate and drive shaft each have a clamping surface, where the angles of the clamping surfaces are also oppositely directed, it is possible, by radial adjustment of the clamping elements, an axial force between the to produce both parts to be clamped. To a pivotal mounting of the To cause clamping elements, they have according to an embodiment of the invention radially outer bearing approaches that interact with a bearing ring, the cooperates with a shoulder of the cavity of the drive shaft. The bearing ring, which is preferably made of plastic, can be limited by radial webs Have storage chambers, in which the bearing lugs of the clamping elements added are.

Nach einer weiteren Ausgestaltung der Erfindung weist die Antriebswelle einen Zentrierring auf, der den oberen Teil der Antriebswelle umgibt und über die Mitnehmerfläche nach oben übersteht. Sein Innendurchmesser ist derart bemessen, daß ein Endabschnitt eines axialen zylindrischen Bundes der Matrizenscheibe passend in den Zentrierring eingreifen kann. According to a further embodiment of the invention, the drive shaft has a centering ring on, which surrounds the upper part of the drive shaft and the driving surface survives to the top. Its inner diameter is such that a End portion of an axial cylindrical collar of the die plate fitting in the Can engage centering.

Es sind verschiedene Möglichkeiten denkbar, die Betätigungsstange im Abstand zum Schnellverschluß zu verstellen. Eine sieht erfindungsgemäß vor, daß die Stange im Abstand zum freien oberen Ende ein Verstellgewinde aufweist, auf dem eine Spindelmutter sitzt. Die Spindelmutter ist in geeigneter Weise axial im Kanal der Antriebswelle gesichert. Ein Drehantrieb seitlich der Antriebswelle weist ein Verstellrad auf, das über eine Öffnung in der Antriebswelle mit der Spindelmutter zusammenwirkt. Die Spindelmutter kann daher außen eine Verzahnung aufweisen und das Verstellrad eine komplementäre Verzahnung, um eine Drehung der Mutter zu bewerkstelligen. Da die Betätigung der Betätigungsstange nur vorübergehend während eines Wechsels bzw. Ausbaus und Einbaus der Matrizenscheibe erfolgt, ist der Drehantrieb verstellbar gelagert, um das Verstellrad während des normalen Betriebs der Antriebswelle außerhalb des Wirkungsbereichs der Antriebswelle zu bringen. Hierfür kann ein Linearantrieb, beispielsweise ein Verstellzylinder vorgesehen werden, der den Drehantrieb zwischen zwei Positionen hin und her verstellt.There are various possibilities conceivable, the actuating rod at a distance from Quick release to adjust. One provides according to the invention that the rod in the Distance from the free upper end has an adjusting thread on which a spindle nut sitting. The spindle nut is suitably axially in the channel Drive shaft secured. A rotary drive side of the drive shaft has an adjusting on, which cooperates via an opening in the drive shaft with the spindle nut. The spindle nut can therefore have a toothing on the outside and the Adjusting a complementary toothing to accomplish a rotation of the nut. Since the actuation of the actuating rod only temporarily during a Change or removal and installation of the die plate is done, is the rotary drive adjustably mounted to the adjusting wheel during normal operation of the drive shaft outside the range of action of the drive shaft to bring. This can be a Linear drive, for example, an adjusting cylinder are provided, the Rotary drive between two positions back and forth adjusted.

Die Erfindung wird nachfolgend anhand eines in Zeichnungen dargestellten Ausführungsbeispiels näher erläutert.

Fig. 1
zeigt einen Schnitt durch die Matrizenscheibe und die Antriebswelle im Verbindungsbereich mit einem Schnellverschluß nach der Erfindung.
Fig. 2
zeigt einen Schnitt durch den unteren Bereich einer Antriebswelle mit einem Antrieb für die Betätigung der Betätigungsstange.
Fig. 3
zeigt eine Draufsicht auf Spannelemente der Vorrichtung nach Fig.
Fig. 4
zeigt eine Draufsicht auf einen Lagerring der Vorrichtung nach Fig. 1.
Fig. 5
zeigt einen Schnitt durch die Darstellung nach Fig. 4 entlang der Linie 5-5.
The invention will be explained in more detail with reference to an embodiment shown in the drawings.
Fig. 1
shows a section through the die plate and the drive shaft in the connection area with a quick release closure according to the invention.
Fig. 2
shows a section through the lower portion of a drive shaft with a drive for the actuation of the actuating rod.
Fig. 3
shows a plan view of clamping elements of the device according to FIG.
Fig. 4
shows a plan view of a bearing ring of the device according to Fig. 1st
Fig. 5
shows a section through the illustration of FIG. 4 along the line 5-5.

Von einer Matrizenscheibe 10 einer nicht im einzelnen dargestellten Tabletten-Rundläuferpresse, wie sie etwa aus EP 0 288 798 beschrieben ist, ist in Fig. 1 lediglich der ringzylindrische Bund 12 am unteren Ende der Matrizenscheibe 10 im Schnitt dargestellt. Der Bund 12 hat am unteren freien Ende eine zylindrische Mitnehmerfläche 14. Im Bund 12 ist ein zylindrischer Hohlraum 16 ausgebildet, der von der Ringfläche 14 aus zugänglich ist. Der Hohlraum 16 geht über in eine im Durchmesser engere Bohrung 18, auf die im weiteren nicht mehr eingegangen werden soll.From a die plate 10 of a not shown in detail tablet rotary press, as described for instance from EP 0 288 798, in FIG annular cylindrical collar 12 at the lower end of the die plate 10 shown in section. The collar 12 has a cylindrical driver surface 14 at the lower free end. In the collar 12, a cylindrical cavity 16 is formed, of the annular surface 14th is accessible from. The cavity 16 merges into a narrower diameter bore 18, which will not be discussed further below.

Die Wandung des Hohlraums 16 hat ein Gewinde, und ein Ring 20 mit Außengewinde ist in den Hohlraum 16 eingeschraubt, wobei ein Flansch 22 des Ringes 20 formschlüssig mit einer entsprechenden Ausnehmung an der Stirnfläche der Matrizenscheibe 10 zusammenwirkt und das Einschrauben des Ringes 20 begrenzt. Der Ring 20 hat eine konische Spannfläche 24, die zum Boden des Hohlraums 16 weist. The wall of the cavity 16 has a thread, and a ring 20 with external thread is screwed into the cavity 16, wherein a flange 22 of the ring 20 is a positive fit with a corresponding recess on the end face of the die plate 10 cooperates and limits the screwing of the ring 20. The ring 20 has a conical clamping surface 24 which faces the bottom of the cavity 16.

Eine Antriebswelle 26 für die Matrizenscheibe 10, die auf nicht gezeigte Art und Weise mit einem Drehantrieb verbunden ist zur Drehung der Matrizenscheibe 10, ist am oberen Ende mit einem im Durchmesser erweiterten Abschnitt 28 versehen. Dieser enthält einen Hohlraum 30, der ebenfalls zylindrisch ist und annähernd den gleichen Durchmesser hat wie der Hohlraum 16. Auch der Hohlraum 30 ist mit einem Gewinde versehen, in das ein weiterer Spannring 32 eingeschraubt ist. Der Spannring 32 weist eine Spannfläche 34 auf, die konisch ist und die dem Boden des Hohlraums 30 zugekehrt ist. Die Spannflächen 24, 34 sind mithin entgegengesetzt gerichtet.A drive shaft 26 for the die plate 10, in a manner not shown and Way is connected to a rotary drive for rotating the die plate 10 ,. provided at the upper end with a diameter-expanded portion 28. This includes a cavity 30 which is also cylindrical and approximately the same Diameter has as the cavity 16. Also, the cavity 30 is threaded provided, in which a further clamping ring 32 is screwed. The clamping ring 32 has a clamping surface 34 which is conical and which faces the bottom of the cavity 30 is. The clamping surfaces 24, 34 are thus directed opposite.

Der Hohlraum 30 geht über in einen axialen Kanal 36 der Antriebswelle 26.The cavity 30 merges into an axial channel 36 of the drive shaft 26.

In den Hohlräumen 16, 30 sind Spannelemente 38 angeordnet. Es sind-insgesamt acht Spannelemente 36 vorgesehen. Wie sich aus Fig. 3 ergibt, sind die Spannelemente im Querschnitt segmentartig geformt und in gleichmäßigen Umfangabständen angeordnet. Jedes Spannelement 38 weist eine erste nach außen weisende konische Spannfläche 40 auf sowie eine äußere konische Spannfläche 42 im axialen Abstand zur Spannfläche 40. Die Spannflächen 40, 42 sind so ausgeführt, daß sie in der Position, die auf der linken Seite von Fig. 1 gezeigt ist, mit den Spannflächen 24, 34 der Spannringe 32, 20 zusammenwirken und eine axiale Kraft der Ringe aufeinander zu erzeugen. Hierauf wird weiter unten noch näher eingegangen. In the cavities 16, 30 clamping elements 38 are arranged. There are-eight altogether Clamping elements 36 are provided. As is apparent from Fig. 3, the clamping elements in Cross-section segmented and arranged at uniform circumferential intervals. Each clamping element 38 has a first outwardly facing conical clamping surface 40 on and an outer conical clamping surface 42 at an axial distance from Clamping surface 40. The clamping surfaces 40, 42 are designed so that they are in the position, which is shown on the left side of Fig. 1, with the clamping surfaces 24, 34 of the clamping rings 32, 20 cooperate and generate an axial force of the rings on each other. This will be discussed in more detail below.

Die Spannfläche 42 ist an einem Lageransatz 44 ausgebildet, der in einem Lagerring 46 um eine Achse annähernd senkrecht zur Achse der Antriebswelle 26 begrenzt schwenkbar gelagert ist. Außerdem können die Spannelemente begrenzt radial bewegt werden. Der Lagerring 46, der vorzugsweise aus Kunststoff geformt ist, sitzt am Boden des Hohlraums 30, der gleichzeitig Absatz ist am Übergang zum axialen Kanal 36 der Antriebswelle 26.The clamping surface 42 is formed on a bearing lug 44, which in a bearing ring 46 limited by an axis approximately perpendicular to the axis of the drive shaft 26 is pivotally mounted. In addition, the clamping elements can be moved radially limited become. The bearing ring 46, which is preferably molded from plastic, sits on Bottom of the cavity 30, which is at the same paragraph at the transition to the axial channel 36 of the drive shaft 26th

Auf der Innenseite weist jedes Spannelement 38 eine erste konische Betätigungsfläche 48 auf annähernd in Höhe der Spannfläche 20. Es weist ferner eine zweite Betätigungsfläche 50 am unteren Ende auf, das eine bestimmte Strecke in den Kanal 36 hineinsteht. Schließlich weist jedes Spannelement 38 eine dritte konische Betätigungsfläche 52 auf, die zwischen den Betätigungsflächen 48, 50 und unterhalb der Spannfläche 42 liegt.On the inside, each clamping element 38 has a first conical actuating surface 48 at approximately equal to the clamping surface 20. It also has a second actuating surface 50 at the bottom on that a certain distance in the channel 36 into stands. Finally, each clamping element 38 has a third conical actuating surface 52 on, between the actuating surfaces 48, 50 and below the clamping surface 42 lies.

Die Darstellung nach Fig. 3 zeigt die Spannelemente in der Position, wie sie in der linken Seite von Fig. 1 eingenommen werden.The illustration of FIG. 3 shows the clamping elements in the position as shown in the taken on the left side of Fig. 1.

Innerhalb der Antriebswelle 26, d.h. in der Bohrung oder in dem Kanal 36 ist eine Betätigungsstange 54 angeordnet. Sie ist wie durch die beiden Darstellungen in Fig. 1 zu erkennen, in Achsrichtung verstellbar. Within the drive shaft 26, i. in the bore or in the channel 36 is a Actuating rod 54 is arranged. It is like the two representations in FIG. 1 to recognize, adjustable in the axial direction.

Mit der Stange 36 ist ein Spannkegel 56 verbunden, der, wie sich ebenfalls aus Fig. 1 ergibt, zwischen zwei Endpositionen hin und herbewegbar ist. Der Spannkegel 56 dient zur Betätigung der Spannelemente 38. Die Spannelemente 38 haben eine Spannstellung, welche auf der linken Seite in Fig. 1 dargestellt ist und eine Freigabestellung, die auf der rechten Seite von Fig. 1 dargestellt ist. Die Spannstellung wird daher in einer Stellung des Spannkegels 56 erreicht, wie sie auf der linken Seite in Fig. 1 dargestellt ist. Die Freigabestellung entspricht einer Position des Spannkegels 56, wie sie auf der rechten Seite in Fig. 1 dargestellt ist. Der Spannkegel 56 hat eine obere oder erste Kegelfläche 58, welche mit der Betätigungsfläche 48 zusammenwirkt. Der Spannkegel 56 hat eine untere kegelige Spreizfläche 60, die mit der Betätigungsfläche 50 zusammenwirkt. Schließlich hat er eine dritte Kegelfläche 62 zwischen den beschriebenen Kegelflächen, welche mit der Betätigungsfläche 52 zusammenwirkt.With the rod 36, a clamping cone 56 is connected, which, as is also apparent from Fig. 1 results, between two end positions back and forth. The clamping cone 56 serves to actuate the clamping elements 38. The clamping elements 38 have a clamping position, which is shown on the left side in Fig. 1 and a release position, which is shown on the right side of Fig. 1. The clamping position is therefore in reaches a position of the clamping cone 56, as shown on the left side in Fig. 1 is. The release position corresponds to a position of the clamping cone 56, as they is shown on the right side in Fig. 1. The clamping cone 56 has an upper or first conical surface 58, which cooperates with the actuating surface 48. Of the Tensioning cone 56 has a lower tapered expansion surface 60, with the actuating surface 50 interacts. Finally, he has a third conical surface 62 between the described conical surfaces, which cooperates with the actuating surface 52.

Wird die Betätigungsstange 36 nach oben verstellt in eine Position, wie sie auf der rechten Seite in Fig. 1 dargestellt ist, wirkt die Kegelfläche 60 mit der Betätigungsfläche 50 der Spannelemente 38 zusammen, so daß diese in eine Position verschwenkt werden, wie sie auf der rechten Seite in Fig. 1 dargestellt ist. Der Lageransatz 44 der Spannelemente 38 legt sich daher gegen die zugeordnete Innenkante des Lagerrings 46 und wird gekippt, wobei die Kippbewegung begrenzt wird durch den Anschlag des Ansatzes 44 gegen die Spannfläche 34 des Spannrings 32. Wie erkennbar, kann in dieser Position der Spannelemente 38 der Bund 12 der Matrizenscheibe 10 ohne weiteres nach oben abgehoben werden. If the actuating rod 36 is moved upwards into a position as shown on the right side shown in Fig. 1, the conical surface 60 acts with the actuating surface 50 of the clamping elements 38 together, so that it pivots in one position be as shown on the right side in Fig. 1. The Lageransatz 44 of Clamping elements 38 therefore lies against the associated inner edge of the bearing ring 46 and is tilted, wherein the tilting movement is limited by the stop of the Approach 44 against the clamping surface 34 of the clamping ring 32. As can be seen in this position of the clamping elements 38 of the collar 12 of the die plate 10 readily be lifted off to the top.

Wird hingegen der Spannkegel 56 nach unten bewegt in eine Position, wie sie in Fig. 1 zur linken Seite dargestellt ist, wirken die Kegelflächen 58 und 62 mit den zugeordneten Betätigungsflächen 48, 52 der Spannelemente 38 zusammen. Diese werden aus der in Fig. 1 auf der rechten Seite dargestellten Position in die auf der linken Seite dargestellte Position verschwenkt, wodurch die Spannflächen 40, 42 mit den zugeordneten Spannflächen 24, 34 der Spannringe 20, 32 zusammenwirken und eine erhebliche axiale Kraft erzeugen, wodurch die Endflächen von Matrizenscheibe 10 und Antriebswelle 26 gegeneinander verspannt werden, so daß eine Drehkraft übertragen werden kann. Die axial wirkende Kraft an den beiden Teilen wird in erster Linie dadurch verursacht, daß die Spannelemente 38 außerdem radial auseinandergedrückt werden.If, however, the clamping cone 56 is moved down into a position as shown in FIG. 1 is shown to the left, the conical surfaces 58 and 62 act with the associated Actuating surfaces 48, 52 of the clamping elements 38 together. These are going out the position shown in Fig. 1 on the right side in the on the left side shown pivoted position, whereby the clamping surfaces 40, 42 with the associated Clamping surfaces 24, 34 of the clamping rings 20, 32 cooperate and a considerable generate axial force, whereby the end surfaces of die plate 10 and Drive shaft 26 are braced against each other, so that a rotational force transmitted can be. The axial force acting on the two parts becomes primarily caused by the fact that the clamping elements 38 also pressed apart radially become.

Auf der Außenseite der Erweiterung 28 der Antriebswelle 26 ist ein Zentrierring 64 angebracht, der ein wenig über die Endfläche der Antriebswelle 26 übersteht. Der Bund 12 der Matrizenscheibe 10, der einen im Durchmesser leicht verringerten Abschnitt am freien Ende hat, kann passend in den Zentrierring 64 eingeschoben werden. Daher haben die miteinander zu koppelnden Teile eine zentrierte Ausrichtung zueinander, bevor sie mit dem beschriebenen Schnellverschluß gegeneinander verspannt werden. On the outside of the extension 28 of the drive shaft 26 is a centering ring 64th attached, which protrudes a little beyond the end surface of the drive shaft 26. Of the Bund 12 of the die plate 10, the slightly reduced in diameter Section at the free end, can be inserted into the centering ring 64 fitting. Therefore, the parts to be coupled have a centered orientation each other before they braced against each other with the described quick release become.

Wie aus den Figuren 1 und 5 hervorgeht, hat der Lagerring 46 im Querschnitt L-förmige Kontur. Wie aus Fig. 4 hervorgeht, ist von dem aufrechten Steg ausgehend eine Reihe von radialen Stegen 66 geformt. Zwischen den Stegen 66 sind Aufnahmekammem 68 gebildet für die Lageransätze 44 der Spannelemente 38.As is apparent from Figures 1 and 5, the bearing ring 46 in cross-section L-shaped Contour. As is apparent from Fig. 4, starting from the upright web is a Row of radial webs 66 shaped. Between the webs 66 are Aufnahmekammem 68 formed for the bearing lugs 44 of the clamping elements 38th

Nahe dem Spannkegel 56 ist ein Lagerring 70 in die Bohrung 36 eingeschraubt. Er dient zur Lagerung und Führung der Betätigungsstange 54.Near the clamping cone 56, a bearing ring 70 is screwed into the bore 36. He serves for storage and guidance of the actuating rod 54th

In Fig. 2 ist äußerst schematisch die axiale Betätigung der Betätigungsstange 54 gezeigt. Im Abstand zum Lager 70 weist die Betätigungsstange 54 ein Gewinde 72 auf, auf dem eine Spindelmutter 74 sitzt. Die Spindelmutter 74 ist in einer Ausnehmung 76 der Welle 26 axial gesichert. Es ist auch denkbar, eine Sicherung mit einer Kunststoffbuchse vorzusehen, wie sie in Fig. 1 unter dem Lagerring 70 angeordnet und dort mit 78 bezeichnet ist. Im Bereich der Mutter 74 weist die Welle 26 eine radiale Ausnehmung 80 auf. In diese hinein steht ein Zahnrad 82, das mit einer äußeren Zahnung der Spindelmutter 74 zusammenwirkt. Das Zahnrad 82 wird von einem Elektromotor 84 angetrieben und dreht dabei die Spindelmutter 74, wodurch sich die Stange 54 je nach Drehrichtung aufwärts oder abwärts bewegt. Der Motor 84 ist entlang einer gehäusefesten Führung 86 beweglich gelagert und kann mit Hilfe eines Verstellzylinders 88 entlang der Führung 86 bewegt werden, um das Zahnrad 82 außerhalb der Antriebswelle 26 zu bringen. In Fig. 2 is very schematically the axial actuation of the actuating rod 54th shown. At a distance from the bearing 70, the actuating rod 54 has a thread 72nd on which a spindle nut 74 is seated. The spindle nut 74 is in a recess 76 of the shaft 26 secured axially. It is also possible to make a backup with a Provide plastic bushing, as arranged in Fig. 1 under the bearing ring 70 and there is designated 78. In the area of the nut 74, the shaft 26 has a radial recess 80. In this there is a gear 82, with an outer Teeth of the spindle nut 74 cooperates. The gear 82 is of a Electric motor 84 driven and thereby rotates the spindle nut 74, causing the Rod 54 moves depending on the direction of rotation upwards or downwards. The motor 84 is along a housing-fixed guide 86 movably mounted and can with the help of a Adjusting cylinder 88 along the guide 86 are moved to the gear 82nd outside the drive shaft 26 to bring.

Es versteht sich, daß die oben beschriebenen Vorgänge zur Kopplung der Matrizenscheibe mit der Antriebswelle automatisch erfolgen können.It is understood that the above-described operations for coupling the die plate can be done automatically with the drive shaft.

Claims (14)

  1. A rotary tablet press, with a die plate rotatably mounted in a housing, which comprises guides for the upper and lower punches, whose position is controlled by cam disks fixed in the housing, and an upright drive shaft which is arranged below the die plate and can be releasably coupled to the die plate, wherein the die plate is formed such that after releasing from the drive shaft and a slight raising it may be moved out laterally, at the facing ends of the die plate (10) and drive shaft (26) there being provided a quick lock whose parts (38, 56) are arranged in cavities of the die plate (10) and drive shaft (26) and which may be actuated by an actuation rod (54) which is movably mounted in an axial passage (36) of the drive shaft (26) and is actuatable by an actuation device (74, 82, 84) for the selective clamping or the die plate (10) and drive shaft (26) against each other or releasing the parts.
  2. The rotary tablet press according to claim 1, characterised in that drive shaft (26) and die plate (10) comprise annular lug surfaces (14) abutting one another, the drive shaft (26) and/or die plate (10) radially inside of the lug surfaces (12) comprise annular conical clamping surfaces (24, 34), in the cavity (30) of the drive shaft (26) and/or of the die plate (10) radially inside of the clamping surfaces at least one movable clamping element (38) having a conical clamping surface (40, 42), and actuatable by the actuation rod is movably mounted between a release position in which the die plate (10) may be placed freely on the drive shaft (26) or may be removed from this respectively and a clamping position, wherein the conical clamping surfaces of the die plate (10) and/or the drive shaft (26) on the one hand and of the clamping element (38) on the other hand may be clamped against one another, and an actuation section (56) on the actuation rod (54) is provided for the clamping element (38).
  3. The rotary tablet press according to claim 1 or 2, characterised in that the actuation rod (54) is axially adjustable and is connected to a clamping cone (56) which cooperates with a conical actuation surface (48, 52) of the clamping element (38).
  4. The rotary tablet press according to claim 2 or 3, characterised in that a multitude of claw-like clamping elements (38) uniformly distributed in circumferential direction in the cavity (30) of the drive shaft (26) is pivotably mounted about an axis approximately perpendicular to the axis of the drive shaft (26).
  5. The rotary tablet press according to claim 2 and 4, characterised in that the clamping cone (56) at an axial distance to the clamping surface (40) comprises a conical expansion surface (60) which cooperates with a conical actuation surface (50) on the clamping element (38) in a manner such that the clamping element (38) is moved into the release position when the expansion surface (60) and actuation surface (50) are moved against one another.
  6. The rotary tablet press according to one of the claims 1 to 5, characterised in that the clamping surface (24, 34) is formed on a clamping ring (20, 32) which is screwed into the cavity (40 or 30) of the die plate (10) and/or of the drive shaft (26).
  7. The rotary tablet press according to claim 4 or 5, characterised in that the clamping element within limits is mounted radially movable, the die plate (10) and drive shaft (26) comprise oppositely directed clamping surfaces (24, 34) which cooperate with conical clamping surfaces (40, 42) of the clamping element (38), the clamping cone (56) between the first cone surface (58) and the expansion surface (60) comprises a third cone surface (62) which cooperates with a further conical actuation surface (52) of the clamping element (38) in a manner such that on the clamping element (38) there is produced a radial pressure when the clamping cone (56) brings the clamping element (38) into the clamping position.
  8. The rotary tablet press according to one of the claims 3 to 7, characterised in that the clamping elements (38) between their upper and lower end are provided with a bearing projection (44) facing radially outwards which is mounted in a bearing ring (46) L-shaped in cross section, the bearing ring (46) being arranged on a shoulder in the cavity (30) of the drive shaft (26).
  9. The rotary tablet press according to claim 8, characterised in that the bearing ring (46) is formed of plastic.
  10. The rotary tablet press according to one of the claims 8 or 9, characterised in that the bearing ring (46) comprises bearing chambers (68), limited by radial webs (66), for the bearing projections (44) of the clamping elements (38).
  11. The rotary tablet press according to one of the claims 1 to 10, characterised in that the drive shaft (26) is surrounded by a centering ring (64) which projects beyond the lug surface at the top, and an axial collar (12) of the die plate (10) is fittingly accommodated in the centering ring (64).
  12. The rotary tablet press according to one of the claims 1 to 11, characterised in that the actuation rod (54) at a distance to the upper free end of the drive shaft (26) comprises an adjusting thread (72) on which a spindle nut axially secured in the passage (36) is arranged, and a rotational drive (84) is provided having an adjusting wheel (82) which via an opening (80) in the drive shaft (26) can be brought into driving connection with the spindle nut (74), the rotational drive (84) being movably mounted, in order to selectively disengage it with the spindle nut (74).
  13. The rotary tablet press according to claim 12, characterised in that a linear drive (88) engages the rotational drive (84).
  14. The rotary tablet press according to one of the claims 1 to 13, characterised in that an axial bearing (70) for the actuation rod (54) is arranged in the drive shaft (26) near to the quick lock.
EP00104902A 1999-05-04 2000-03-08 Rotary tabletting press Expired - Lifetime EP1050398B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19920380 1999-05-04
DE19920380A DE19920380C2 (en) 1999-05-04 1999-05-04 Rotary tablet press

Publications (3)

Publication Number Publication Date
EP1050398A2 EP1050398A2 (en) 2000-11-08
EP1050398A3 EP1050398A3 (en) 2001-01-17
EP1050398B1 true EP1050398B1 (en) 2005-05-11

Family

ID=7906862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104902A Expired - Lifetime EP1050398B1 (en) 1999-05-04 2000-03-08 Rotary tabletting press

Country Status (3)

Country Link
US (1) US6361305B1 (en)
EP (1) EP1050398B1 (en)
DE (2) DE19920380C2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10024340C2 (en) * 2000-05-11 2002-09-12 Fette Wilhelm Gmbh Stamp for rotary press
DE10113586A1 (en) * 2001-03-20 2002-09-26 Kilian Gmbh & Co Kg Dismantling or assembling the movable components of a tablet press, comprises storing the assembly or dismantling steps in a protocol, allocating time windows, and actuating a release
US6972105B2 (en) * 2003-03-31 2005-12-06 Court Oy Nv Rotary tablet press
JP4506734B2 (en) * 2006-03-31 2010-07-21 Ｔｄｋ株式会社 Molding equipment
US20080029915A1 (en) * 2006-08-02 2008-02-07 Courtoy Nv Rotary tablet press
ES2460577T3 (en) * 2008-04-18 2014-05-13 Korsch Ag Rotary tablet press

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3825387A (en) * 1971-05-07 1974-07-23 California Pellet Mill Co Quick-change die and roller assembly
GB2092508B (en) * 1981-02-05 1985-08-21 Frogerais Ed Sa Improvements in or relating to tablet making machines
DE3714031A1 (en) * 1987-04-27 1988-11-10 Fette Wilhelm Gmbh CIRCULAR TABLETING MACHINE
DE8817078U1 (en) * 1987-05-11 1992-09-17 Gühring oHG, 72458 Albstadt Coupling device between a workpiece or tool carrier and a handling device provided for it
DE8815075U1 (en) * 1988-12-03 1990-04-05 Manesty Machines Ltd., Liverpool, Lancashire Tableting machine
DE4018453A1 (en) * 1990-06-08 1991-12-12 Fette Wilhelm Gmbh TABLETING MACHINE
JPH0775799B2 (en) * 1990-09-13 1995-08-16 日本ニユクリア・フユエル株式会社 Rotary powder compression molding machine
US5466102A (en) * 1993-12-16 1995-11-14 Kennametal Inc. System for coupling machine tools
JP2831277B2 (en) * 1994-07-27 1998-12-02 株式会社畑鉄工所 Rotary powder compression molding machine
JP2948175B2 (en) * 1997-06-30 1999-09-13 株式会社菊水製作所 Rotary powder compression molding machine

Also Published As

Publication number Publication date
EP1050398A3 (en) 2001-01-17
DE19920380C2 (en) 2001-07-12
EP1050398A2 (en) 2000-11-08
DE50010260D1 (en) 2005-06-16
US6361305B1 (en) 2002-03-26
DE19920380A1 (en) 2000-11-16

Similar Documents

Publication Publication Date Title
DE4234115A1 (en) CAN SEALING MACHINE
DE60129375T3 (en) Reifenabdrückvorrichtung for a Raddemontiergerät, and Raddemontiergerät with such a device
DE4028775C1 (en)
EP3239078B1 (en) Device for regulating the height of a gripping and transport device for gripping, holding, guiding and transporting objects, in particular bottle-like containers
WO1991005650A1 (en) Mould for injection moulding machines
DE29713253U1 (en) Overload clutch
DE3229223A1 (en) Clutch device between drive device and screw of the plastication unit of an injection moulding machine
EP1050398B1 (en) Rotary tabletting press
EP0336182A2 (en) Drilling device for making undercuttings in blind cylindrical holes
EP1316411A2 (en) Rotor for tabletting press
EP0261312A2 (en) Angle positioning device for a working spindle
EP0685327B1 (en) Punch for a tabletting machine
EP0040417B1 (en) Adjustment device for variable track
DE4442533A1 (en) Drilling device
DE1915472B2 (en) Tractor drawn mowing machine - has drum of mower tool with inner carrier sleeve and drive bush
EP2241441B1 (en) Device for processing a web of material between two rollers which operate in opposite directions
EP1153735A2 (en) Punch for rotary press
DE2908422C2 (en) Honing or lapping head
CH695213A5 (en) Method for installing and removing a cylinder of a printing press and device for this purpose.
EP1518810B1 (en) Yarn brake and textile machine and yarn feeding device equipped with such a yarn brake
EP0427090A2 (en) Tool holder for rotating tools, in particular circular saw blades, chipping tools etc.
DE29823115U1 (en) linear actuator
DE69826169T2 (en) Drive mechanism for a Ausnehmerarm
EP0491237B1 (en) Cutter head
EP0612279B1 (en) Clamping device for connecting a tool head to a tool holder on machine tools

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20000318

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): CH DE FR GB IT LI

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

RIC1 Information provided on ipc code assigned before grant

Free format text: 7B 30B 11/08 A, 7B 23B 31/26 B

AKX Designation fees paid

Free format text: CH DE FR GB IT LI

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: FETTE GMBH

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE FR GB IT LI

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: CH

Ref legal event code: NV

Representative=s name: ISLER & PEDRAZZINI AG

REF Corresponds to:

Ref document number: 50010260

Country of ref document: DE

Date of ref document: 20050616

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20050706

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

ET Fr: translation filed
26N No opposition filed

Effective date: 20060214

REG Reference to a national code

Ref country code: CH

Ref legal event code: PCAR

Free format text: ISLER & PEDRAZZINI AG;POSTFACH 1772;8027 ZUERICH (CH)

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50010260

Country of ref document: DE

Representative=s name: HAUCK PATENT- UND RECHTSANWAELTE, DE

Effective date: 20110621

Ref country code: DE

Ref legal event code: R081

Ref document number: 50010260

Country of ref document: DE

Owner name: FETTE COMPACTING GMBH, DE

Free format text: FORMER OWNER: FETTE GMBH, 21493 SCHWARZENBEK, DE

Effective date: 20110621

Ref country code: DE

Ref legal event code: R082

Ref document number: 50010260

Country of ref document: DE

Representative=s name: HAUCK PATENTANWALTSPARTNERSCHAFT MBB, DE

Effective date: 20110621

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20140324

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20140319

Year of fee payment: 15

Ref country code: IT

Payment date: 20140327

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20140324

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20140508

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50010260

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20150308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150308

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20151130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20151001

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150308

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150331