EP2110230B1 - Presse rotative pour comprimés - Google Patents

Presse rotative pour comprimés Download PDF

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Publication number
EP2110230B1
EP2110230B1 EP20090157706 EP09157706A EP2110230B1 EP 2110230 B1 EP2110230 B1 EP 2110230B1 EP 20090157706 EP20090157706 EP 20090157706 EP 09157706 A EP09157706 A EP 09157706A EP 2110230 B1 EP2110230 B1 EP 2110230B1
Authority
EP
European Patent Office
Prior art keywords
clamping
rotor
tablet press
rotary tablet
clamping device
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
EP20090157706
Other languages
German (de)
English (en)
Other versions
EP2110230A3 (fr
EP2110230A2 (fr
Inventor
Michael Matthes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korsch AG
Original Assignee
Korsch AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korsch AG filed Critical Korsch AG
Publication of EP2110230A2 publication Critical patent/EP2110230A2/fr
Publication of EP2110230A3 publication Critical patent/EP2110230A3/fr
Application granted granted Critical
Publication of EP2110230B1 publication Critical patent/EP2110230B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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

  • Rotary tablet presses according to the preamble of claim 1 are well known. These include a connectable to a drive shaft of an engine rotor.
  • the rotor comprises a die plate with arranged on a circumferential line dies, as well as a lower and upper punch guide.
  • Unterstempel- or upper punch guide engage Unterrythe upper punch, which are controlled by stamp curves, so that the stamp can perform relative to the matrices Hubzien.
  • EP 1 050 398 A2 shows a rotary tablet press in which the rotor is connected via a clamping device releasably connected to the drive machine. The actuation takes place via an additional actuating device, which is movably mounted in an axial channel of the drive shaft.
  • the structure is complicated and also provides through the additional mechanically movable parts within the drive shaft targets for deposits of rotary tablet presses inevitably occurring dusts within the drive device.
  • the actuation of the actuating rod within the drive shaft takes place from outside the drive shaft, for which purpose a separate drive is required.
  • the rotor For maintenance, cleaning or retrofitting of the rotor, for example to other tablet forms, it is desirable that the rotor can be easily removed from the tablet press without extensive disassembly work.
  • the invention proposes for this purpose a rotary tablet press with a rotor and a drive machine for the rotor, wherein the rotor via a clamping device releasably connected to a drive shaft of the drive machine is positively connected and the clamping device and an actuating element for the clamping device are integrated into the rotor and the Clamping device comprises at least one clamping element which is displaceable by means of the actuating element from a clamping position via a dead center position in a release position and vice versa.
  • the Clamping device comprises at least one clamping element which is displaceable by means of the actuating element from a clamping position via a dead center position in a release position and vice versa.
  • the rotor can be brought back into its operating position in a simple manner by tensioning the clamping device.
  • the rotor comprises a pull rod on which a hoist or the like can engage.
  • a release of the clamping device takes place at the same time. This requires no further operations to remove the rotor from the rotor shaft.
  • a self-adjustment and self-tension (quick tension) of the clamping device takes place when inserting the rotor in the tablet press.
  • the tensioning device supports the release of the operative connection between the rotor and the drive shaft during removal by spring elements or the like. In this way it is particularly ensured that the rotor does not accidentally dissolves from the operative connection with the drive shaft, but only an active removal process must be initiated, so that in fact a removal of the rotor can take place.
  • FIG. 1 a total of 10 designated rotary tablet press. Structure and function of such rotary tablet presses are well known, so that in the context of the present description will be discussed only on the essential components of the invention.
  • the tablet press 10 comprises a rotor 12, which carries a die plate 14 with matrices 16 provided therein.
  • the upper punch guide 20 is associated with a punch cam 22, via which the upper punch can be brought over the circumference of the rotor 12 in the known height positions, for example dosing, pre-pressing, main press position, ejection position.
  • the lower punches are also guided over a, not shown here, stamp curve. It is still possible to see pressure rollers 24 which are arranged fixed to the machine and by means of which pressure is applied to the tablet via the lower punches or upper punches.
  • the rotor 12 is operatively connected via a generally designated 26 clamping device with a drive shaft 28 - a drive, not shown.
  • the rotor 12 is rotationally driven by the prime mover about a rotation axis 30.
  • the rotor 12 is shown to the left of the axis of rotation 30 in its tensioned state and the right of the axis of rotation 30 in its dissolved, but not yet removed state.
  • the tensioning device 26 is connected to a pull rod 32, which is led out of the rotor 12.
  • the pull rod 32 has a receptacle 34 for a non-illustrated load means.
  • the pull rod 32 comprises a shaft 36, which is arranged coaxially to the axis of rotation 30 and is non-positively connected to likewise coaxially arranged clamping elements 38.
  • clamping elements 38 are provided over the circumference of the rotor 12.
  • the clamping elements are from a clamping position (as shown in the left in FIG. 1 ) into a release position (as shown on the right in FIG. 1 )
  • the pull rod 32 displaced. There is a dead center between the clamping position and the release position, so that an independent, accidental skipping of the clamping elements 38 is excluded from the clamping position to the release position.
  • On the construction of the clamping elements 38 will be discussed later in more detail.
  • tablet press 10 in particular the tensioning device 26, shows the following function.
  • first coupling elements 40 of the clamping elements 38 are displaced. These first coupling elements 40 are connected via axes of rotation 42 rotatably connected to the shaft 36. This results in a lifting of the coupling elements 40 and at the same time a pivoting of the coupling elements 40 about the axes of rotation 42.
  • the first coupling elements 40 are connected via spring elements 44 in operative connection with second coupling elements 46 of the clamping elements 38.
  • the spring elements 44 are compression springs which the coupling elements 40 and 46 with apply a respective opposite compressive force.
  • the coupling elements 40 and 46 and the spring element 44 as a whole form as an element consisting of an elastic material.
  • the second coupling elements 46 are connected to clamping jaws 48. As a result of the release of the clamping elements 38, the second coupling elements 46 are pivoted about the axes of rotation 50 to the clamping jaws 48 and simultaneously displace them radially to the rotary axis 30. This allows the jaws 48 - when releasing the clamping elements 38 - except Engagement with counter-stops 52, which are on the one hand non-positively connected to the rotor 12 and on the other hand positively connected to the drive shaft 28. As a result, an axial removal of the rotor 12 from the drive shaft 28 is possible.
  • FIG. 2 shows the rotor 12 in a sectional view, again in the one hand tensioned position, left of the axis of rotation 30, and in the relaxed position, right of the axis of rotation 30. Same parts as in FIG. 1 are provided with the same reference numerals and not explained again.
  • FIG. 3 shows in an enlarged sectional view of the clamping device 26.
  • the same parts as in the preceding figures are provided with the same reference numerals and not explained again.
  • clamping device 26 in particular the clamping elements 38 are clear.
  • the coupling elements 40 and 46 are connected to each other via the spring element 44.
  • the clamping elements 38 are in the clamping position, while these are right of the axis of rotation 30 in the released position.
  • the clamping jaws 48 rest against the counter-stops 52.
  • 52 corresponding conical ramp surfaces 55 are formed between the jaws 48 and the counter-stops, which lead to a self-adjustment during the clamping operation.
  • FIG. 4 different views of the clamping elements 38 are shown. So shows FIG. 4a a tensioning element 38 in its dead center position. This position is reached when an imaginary connecting line between the axes of rotation 42 and 50 coincides exactly with a radial to the axis of rotation 30.
  • FIG. 4b shows a clamping element 38 in the clamping position while Figure 4c shows a clamping element 38 in the released position.
  • FIG. 4d shows the cocked position while Figure 4e shows the detached position.

Landscapes

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

Claims (12)

  1. Presse rotative pour comprimés, avec un rotor (12) et un moteur d'entraînement du rotor (12),
    le rotor (12) étant, par le biais d'un dispositif de serrage (26), raccordé par liaison de force et de façon détachable à un arbre d'entraînement (28) du moteur d'entraînement,
    caractérisée en ce que
    le dispositif de serrage (26) et un élément d'actionnement (32) du dispositif de serrage (26) sont intégrés dans le rotor (12), et le dispositif de serrage (26) comprend au moins un élément de serrage (38) qui, au moyen de l'élément d'actionnement (32), peut être déplacé d'une position de serrage vers une position de desserrage en passant par une position de point mort et inversement.
  2. Presse rotative pour comprimés selon la revendication 1,
    caractérisée en ce que
    le dispositif de serrage (26) est un dispositif de serrage rapide.
  3. Presse rotative pour comprimés selon une des revendications précédentes,
    caractérisée en ce que
    le dispositif de serrage (26) comprend au moins deux éléments de serrage (38) disposés autour d'un axe de rotation (30) du rotor (12).
  4. Presse rotative pour comprimés selon la revendication 3,
    caractérisée en ce que
    le dispositif de serrage (26) comprend cinq éléments de serrage (38) disposés de façon coaxiale autour d'un axe de rotation (30) du rotor (12).
  5. Presse rotative pour comprimés selon une des revendications précédentes,
    caractérisée en ce que
    les éléments de serrage (38) peuvent être déplacés au moyen d'une barre de traction (32) dans la position de serrage, dans la position de point mort et dans la position de desserrage.
  6. Presse rotative pour comprimés selon une des revendications précédentes,
    caractérisée en ce que
    le dispositif de serrage (26) est autoverrouillant.
  7. Presse rotative pour comprimés selon la revendication 5,
    caractérisée en ce que
    les éléments de serrage (38) comprennent des premiers éléments d'accouplement (40) raccordés à la barre de traction (32) et des deuxièmes éléments d'accouplement (46) pouvant être amenés en relation opérationnelle avec l'arbre d'entraînement (28).
  8. Presse rotative pour comprimés selon la revendication 7,
    caractérisée en ce que
    les premiers éléments d'accouplement (40) sont raccordés opérationnellement aux deuxièmes éléments d'accouplement (46) par le biais d'un élément à ressort (44).
  9. Presse rotative pour comprimés selon la revendication 8,
    caractérisée en ce que
    l'élément à ressort (44) est un ressort de compression.
  10. Presse rotative pour comprimés selon une des revendications précédentes,
    caractérisée en ce que
    la relation opérationnelle entre le dispositif de serrage (26) et l'arbre d'entraînement (28) s'effectue par le biais de mors de serrage (48).
  11. Presse rotative pour comprimés selon la revendication 10,
    caractérisée en ce que
    les mors de serrage (48), dans la position de serrage des éléments de serrage (38), sont en contact opérationnel avec des contrebutées (52) de l'arbre d'entraînement (28).
  12. Presse rotative pour comprimés selon la revendication 11,
    caractérisée en ce que
    les mors de serrage (48) et les contrebutées (52) constituent des surfaces d'accostage (55) coniques qui se correspondent.
EP20090157706 2008-04-18 2009-04-09 Presse rotative pour comprimés Active EP2110230B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008020760 2008-04-18

Publications (3)

Publication Number Publication Date
EP2110230A2 EP2110230A2 (fr) 2009-10-21
EP2110230A3 EP2110230A3 (fr) 2011-03-30
EP2110230B1 true EP2110230B1 (fr) 2014-01-29

Family

ID=40679452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20090157706 Active EP2110230B1 (fr) 2008-04-18 2009-04-09 Presse rotative pour comprimés

Country Status (3)

Country Link
EP (1) EP2110230B1 (fr)
DE (1) DE102009002305A1 (fr)
ES (1) ES2460577T3 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2092508B (en) * 1981-02-05 1985-08-21 Frogerais Ed Sa Improvements in or relating to tablet making machines
DE19920380C2 (de) * 1999-05-04 2001-07-12 Fette Wilhelm Gmbh Rundläufer-Tablettenpresse
US6972105B2 (en) * 2003-03-31 2005-12-06 Court Oy Nv Rotary tablet press

Also Published As

Publication number Publication date
EP2110230A3 (fr) 2011-03-30
DE102009002305A1 (de) 2009-10-22
EP2110230A2 (fr) 2009-10-21
ES2460577T3 (es) 2014-05-13

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