EP2065174B1 - Dispositif de remplissage pour une presse à comprimés rotative - Google Patents

Dispositif de remplissage pour une presse à comprimés rotative Download PDF

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Publication number
EP2065174B1
EP2065174B1 EP08018776.8A EP08018776A EP2065174B1 EP 2065174 B1 EP2065174 B1 EP 2065174B1 EP 08018776 A EP08018776 A EP 08018776A EP 2065174 B1 EP2065174 B1 EP 2065174B1
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EP
European Patent Office
Prior art keywords
filling
chamber
wheel
wings
die
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
EP08018776.8A
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German (de)
English (en)
Other versions
EP2065174A3 (fr
EP2065174A2 (fr
Inventor
Harald Römer
Jan Naeve
Matthias Dederichs
Wolfgang Soltau
Ulrich Arndt
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
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Fette GmbH
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Publication date
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Publication of EP2065174A2 publication Critical patent/EP2065174A2/fr
Publication of EP2065174A3 publication Critical patent/EP2065174A3/fr
Application granted granted Critical
Publication of EP2065174B1 publication Critical patent/EP2065174B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B30B15/302—Feeding material in particulate or plastic state to moulding presses
    • B30B15/304—Feeding material in particulate or plastic state to moulding presses by using feed frames or shoes with relative movement with regard to the mould or moulds
    • 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

Definitions

  • the invention relates to a filling device for a rotary tablet press according to claim 1.
  • tablette press generally refers to a rotary press that compacts powdered material into compacts. These do not always have to be tablets.
  • a rotor driven by a drive motor includes a die plate with die bores and guides for top and bottom punches which are actuated by guide cams and pressure rollers to cooperate with the powder material in the die bores.
  • Die holes are understood to mean through holes in the die plate, which are formed either by die inserts or by simple holes in the die plate or in segments of the die plate.
  • the filling of the die bores is carried out with the aid of a suitable filling device, which is associated stationary with the circumference of the die plate.
  • the filling opening of a chamber of the filling device is assigned to the pitch circle of the die bores. If the die holes pass below the filling opening, they are filled one after the other with the powdered material.
  • each of the lower punch is arranged within the die bore and determined with its position the volume of the material to be pressed taken up by the die bore.
  • a filling by gravity transports the press material gently to the die holes.
  • the filling of the die bores takes place via a gravity-induced dropping of the powder into the die bores. From a certain speed of the rotor, such a filling device no longer works with the required Grekonstanz.
  • a stirring device is located in the chamber of the filling device, this conveys the pressing material to the die bores by mechanical sliding. This principle works reliably even at high speeds of the die plate.
  • the powdery pressing material is subjected to high mechanical stress by the shear forces occurring during pushing. It can also be used for Demixing or destruction of the press material come.
  • Another disadvantage may be the fluctuating pressure curve in the stream of compressed material, which is caused by strong deflections in the interior of the filling device.
  • Another disadvantage is the expensive cleaning.
  • Out DE 818450 C a filling device for filling dies of rotary presses is known, in which under a circular bell a distributor cone with a plurality of pin rollers driven about their own axes rotates freely.
  • a filling device for a rotary press with a filling chamber in which a filling wheel with a plurality of filling arms is rotatably arranged is also off US 2003/124183 A1 known.
  • Out FR 1 276 488 A is also a filling device for a rotary press known with a filling chamber in which a filling wheel with a plurality of radial pin rollers is rotatably arranged.
  • the filling chamber has a tangentially elongated housing part, in which further rotationally driven pin rollers are provided.
  • the invention has for its object to provide a filling device for a rotary tablet press that works reliably even at high speeds and effectively fills the press material in the die holes, at the same time protects the press material and is easy to clean.
  • a single filling wheel mounted, which is rotatable about a vertical axis.
  • the chamber is circular in the range of rotation of the filling wheel and may also be circular above the filling wheel. But it is also possible to block this area outside the filling opening to form only a narrow flow section.
  • the filling wheel has on the circumference a plurality of circumferentially spaced radial wings, which sweep over the filling opening upon rotation of the filling wheel.
  • the inlet opening is preferably arranged approximately centrally with respect to the axis or near the axis of the filling wheel at a distance therefrom.
  • the filling opening in the bottom of the chamber to the die plate is extended to an arcuate channel (prefilling channel), which is aligned with the pitch circle of the die bores and extends opposite to the direction of rotation of the die plate beyond the filling chamber.
  • the prefill channel is open at the end.
  • the press material is therefore entered over a greater distance in the individual die holes, wherein the die holes, which occur below the Vorhellkanals are initially filled in part via a gravity filling until they are then completely filled below the filling chamber to the upper edge of the die plate.
  • the advantages of conventional constructions are combined.
  • the filling device according to the invention can be easily cleaned.
  • the filling device according to the invention can be cleaned manually and automatically without much effort. This shortens cleaning and set-up times, for example during product changes.
  • a segregation of individual substances of the press material is minimized.
  • a mechanical load is largely eliminated. Pressure variations on the flow path for the press material are also minimized.
  • the filling device according to the invention from above z. B. centrally fed to the filling material supplied to the side, which can be particularly effective especially when the top of the filling is conical, so that the press material is directed after entering the filling chamber radially outward.
  • An effective deflection can also be achieved, for example, by the top of the filling wheel being helical.
  • the top can also be made smooth or have a suitable surface finish.
  • the drive of the filling wheel via a central shaft, which is passed through the bottom of the filling chamber. It is connected to a suitable drive motor.
  • An embodiment of the invention provides that the lower surface of the Medrads located radially within the wing is approximately plane-parallel to the bottom of the filling chamber and the lower surface has at least one preferably spiral-shaped web. The web prevents the pressing material from entering the gap between the filling wheel and the bottom of the filling chamber and interfering with the operation of the filling wheel when it reaches the filling wheel drive shaft.
  • the wings in the filling wheel according to the invention are finger-like and extend approximately to the circular side wall of the filling chamber.
  • the finger-like wings are significantly smaller in width than the distance of the wings from each other. Their length is such that they essentially only sweep over the area of the die holes.
  • the housing of the filling device according to the invention consists according to a further embodiment of the invention substantially only of a base plate and a cover plate, which together form the filling chamber, wherein the cover plate is preferably conical.
  • a rotor 10 of a tablet press is in Fig. 1 represented by an upper disk 12, a die plate 14 and a lower disk 16.
  • the upper disc 12 serves to guide upper punches 18, and the lower disc serves to guide Unterstkovn 20.
  • Matrizenbohrept 22 are provided which lie on a pitch circle of the die plate, as is well known.
  • Upper and lower punches 18, 20 cooperate with the die holes.
  • the die plate 14 is associated with a filling device 24, via which the die bores 22 are filled with a suitable pressing material, wherein the lower punches are located in the die bores 22.
  • upper and lower pressure rollers 26 and 28 provide for a compression of the pressing material in the die holes 22 by the punch are driven further into the die holes.
  • FIGS. 2 to 5 is the filling device 24, which in Fig. 1 only drawn as a symbol, shown in more detail.
  • a fill plate 32 and a conical top portion 34 mounted on the fill plate 32 enclose a fill chamber 36.
  • the filler plate 32 is composed of a first portion 38 and a second section 40 together.
  • the first section 38 is largely covered by the ceiling part 34 and ends in a shoulder 42 at a distance from the die plate 14, wherein the curvature of the shoulder 42 substantially corresponds to the curvature of the die plate 14.
  • the portion 40 connects, which has a smaller thickness than the portion 38.
  • the section 40 is circular segment-shaped and extends above the die plate 14 with a very small distance to this.
  • the curvature of section 40 again corresponds to the curvature of the die plate.
  • an arcuate channel 44 is formed, which is aligned with the pitch circle of the die bores 22.
  • the channel 44 extends outside the filling chamber 36 in the portion 40 against the direction of rotation 46. Opposite to the direction of rotation of the die plate 14, the channel 44 is made open.
  • the bottom of the filling plate 32 which is directed towards the filling chamber 36, is flat. At the edge is a circumferential flange 48.
  • the conical top portion 34 has a conical portion 50 which merges radially outwardly into a disc-shaped portion 52 which is bolted to the flange 48. Radially inside a ring portion 54 is formed on the conical portion 50.
  • a filling wheel 56 is arranged, which has a conical portion 58 and radial, finger-like wings 60 on the radially outer part of the conical portion 58.
  • the conical portion 58 is centrally connected to a shaft 62, which in turn with a not shown Drive motor communicates.
  • the conical section 58 is aligned centrally with the ring section 54, which forms a feed opening 64 for powder material to the chamber 36.
  • the taper angle of the conical portion 58 is slightly less than the cone angle of the conical portion 50 of the ceiling portion 34, so that the chamber gradually narrows radially outward.
  • the finger-like wings 60 extend into the radially outer region of the chamber 36, which is only slightly higher than the height of the finger-like wings 60th
  • the finger-like wings 60 are relatively narrow and extend approximately to the radially outer cylindrical wall of the filling chamber 36.
  • the distance between the finger-like wings 60 is a multiple of the width of the fingers 60.
  • the transition from the conical section 56 in the area between The finger-like wings 60 are also conical, as at 68 in Figs FIGS. 2 and 3 indicated.
  • the wings 60 extend substantially over the area occupied by the die holes 22 of the die plate 14.
  • the pressing material passes by gravity through the inlet opening 64 in the filling chamber 36 and distributed along the surface of the conical portion 58 and 68 radially outward and is thereby pushed with the finger-like wings 60 on the die holes 22.
  • a part of the filling material also passes into the channel 44 and is thrown opposite to the direction of rotation of the die plate 14 due to the movement of the filling wheel 56.
  • the direction of rotation of the filling wheel is opposite to the direction of rotation of the die plate 46, as indicated at 70. In this way, there is a pre-filling of the die holes 22 before they are completely filled below the filling wheel 56 with press material.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Basic Packing Technique (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (12)

  1. Dispositif de remplissage pour une presse à comprimés rotative, qui lui-même étant agencé de manière stationnaire est associé à un disque à matrice rotatif (14) d'un rotor (10) de la presse à comprimés, avec une chambre de remplissage (36), qui comporte un orifice d'admission (64) supérieur pour des matières à presser en forme de poudre et une ouverture de remplissage alignée à des alésages de matrice (22) du disque à matrice (14), et avec un transporteur entrainé par un moteur d'entraînement dans la chambre de remplissage (36), une seule roue de remplissage (56) étant montée à rotation autour d'un axe vertical dans la chambre de remplissage (36), qui a plusieurs ailes (60) sur le périmètre, espacées dans la direction de périmètre, qui balayent l'ouverture de remplissage quand la roue de remplissage (56) se tourne, et dans ledit dispositif l'orifice d'admission (64) est agencé en une distance au-dessus de la roue de remplissage (56), de préférence près du ou centré à l'axe de la roue de remplissage (56), et une distance est pourvue entre la roue de remplissage (56) et une paroi supérieure de la chambre de remplissage (36) au moins dans le segment associé à l'ouverture de remplissage afin de former une section de canal d'écoulement, la roue de remplissage (56) étant reliée an une tige centrale (62) qui s'étend à travers le fond de la chambre de remplissage (36), caractérisé en ce que l'ouverture de remplissage dans le fond de la chambre de remplissage (36) est allongée à un canal (44) en forme d'arc qui est dirigé vers l'arc de cercle des alésages de matrice (22) et s'étend au-delà de la chambre de remplissage (36) opposé au sens de rotation du disque à matrice (14) et qui forme un canal de pré-remplissage (44) avec extrémité ouverte au dehors de la chambre de remplissage (36), de sorte que les alésages de matrice qui entrent au-dessous du canal de pré-remplissage (44) sont pour le moment partiellement remplis par gravitation jusqu'à ce qu'ils sont ensuite complètement remplis au-dessous de la chambre de remplissage (36) jusqu'au bord supérieur du disque à matrice (14).
  2. Dispositif de remplissage selon la revendication 1, caractérisé en ce que la surface inférieure de la roue de remplissage (56), située radialement en l'espace des ailes (60), s'étend dans une plaine parallèle au fond plat de la chambre de remplissage (36), et la surface inférieure comporte au moins un chevalet (61) coaxial hélicoïdal.
  3. Dispositif de remplissage selon une des revendications 1 ou 2, caractérisé en ce que les ailes (60) sont en forme de doigt et s'étendent approximativement jusqu'à la paroi latérale circulaire de la chambre de remplissage (36).
  4. Dispositif de remplissage selon l'une quelconque des revendications 1 to 3, caractérisé en ce que les ailes (60) ont une longueur radiale par laquelle ils s'étendent essentiellement au-dessus de la région des alésages de matrice (22).
  5. Dispositif de remplissage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le côté supérieur de la roue de remplissage (56) est plate.
  6. Dispositif de remplissage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le côté supérieur de la roue de remplissage (56) est hélicoïdal.
  7. Dispositif de remplissage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le côté supérieur de la roue de remplissage (56) est conique en l'espace des ailes (60).
  8. Dispositif de remplissage selon la revendication 7, caractérisé en ce que la paroi supérieure de la chambre de remplissage (36) est aussi conique (50) dans la région de la section conique (58) de la roue de remplissage (56) et approximativement parallèle à la surface conique de la section de la roue de remplissage section (56).
  9. Dispositif de remplissage selon la revendication 8, caractérisé en ce que l'orifice d'admission (64) central circulaire passe en continuité à la paroi de chambre.
  10. Dispositif de remplissage selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'altitude de la chambre de remplissage (36) est légèrement plus grande que l'altitude des ailes (60) dans la région extérieure radiale des ailes (60).
  11. Dispositif de remplissage selon la revendication 3 and 7, caractérisé en ce que la roue de remplissage (56) est aussi conique (68) dans la région entre les ailes (60).
  12. Dispositif de remplissage selon l'une quelconque des revendications 1 à 11, caractérisé en ce que la chambre de remplissage (36) est formée par une plaque de fond (32) et une plaque de recouvrement (34), la plaque de recouvrement (34) étant en forme d'entonnoir.
EP08018776.8A 2007-11-30 2008-10-28 Dispositif de remplissage pour une presse à comprimés rotative Active EP2065174B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007057789A DE102007057789B3 (de) 2007-11-30 2007-11-30 Füllvorrichtung für eine Rundlauf-Tablettenpresse

Publications (3)

Publication Number Publication Date
EP2065174A2 EP2065174A2 (fr) 2009-06-03
EP2065174A3 EP2065174A3 (fr) 2011-08-03
EP2065174B1 true EP2065174B1 (fr) 2014-12-17

Family

ID=40328366

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08018776.8A Active EP2065174B1 (fr) 2007-11-30 2008-10-28 Dispositif de remplissage pour une presse à comprimés rotative

Country Status (3)

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US (1) US8162650B2 (fr)
EP (1) EP2065174B1 (fr)
DE (1) DE102007057789B3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021123339B3 (de) 2021-09-09 2022-08-25 Fette Compacting Gmbh Fülleinrichtung zum Befüllen von Kavitäten einer Rundläuferpresse sowie Rundläuferpresse und System zum kontinuierlichen Verarbeiten von pulverförmigen Produkten

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011101288B4 (de) * 2011-05-10 2013-11-14 Fette Compacting Gmbh Verfahren zum Betrieb einer Anlage zur Herstellung von Tabletten sowie entsprechende Anlage
JP5847477B2 (ja) * 2011-07-29 2016-01-20 株式会社菊水製作所 粉体圧縮成形機
AT511695B1 (de) 2011-09-16 2013-02-15 Miba Sinter Austria Gmbh Füllschuh
CN105128388A (zh) * 2015-09-22 2015-12-09 太仓益鑫机床有限公司 旋转式压机
DE102015116565B4 (de) * 2015-09-30 2018-03-01 Fette Compacting Gmbh Verfahren zum Betreiben einer Rundläufer-Tablettenpresse und Rundläufer-Tablettenpresse
EP3406437B1 (fr) * 2017-05-24 2020-03-11 Korsch AG Dispositif de remplissage pour une machine à fabriquer des comprimés
CN112318922B (zh) * 2020-11-13 2022-05-31 兰州工业学院 一种复合材料成型机
DE102021134197A1 (de) * 2021-12-22 2023-06-22 Horst Zerhoch Pulverzuführung für eine Tablettenpresse
CN114889200A (zh) * 2022-04-27 2022-08-12 上海绿翊机械制造有限公司 一种旋转式压药机

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DE818450C (de) * 1950-05-14 1951-10-25 Kurt Dipl-Ing Bernecker Fuelleinrichtung zum Fuellen der Matrizen an Rundlaufpressen
US2737289A (en) * 1953-09-17 1956-03-06 Syntron Co Annulus vibratory feeder
FR1276488A (fr) * 1960-12-21 1961-11-17 Ciba Geigy Dispositif destiné à faire avancer continuellement une matière pulvérulente ne s'écoulant pas librement
GB1483594A (en) * 1973-09-11 1977-08-24 Manesty Mach Ltd Hard-gelatin capsule filling machines
US4403935A (en) * 1980-03-27 1983-09-13 Manesty Machines Limited Tabletting machines
AT380800B (de) * 1984-08-03 1986-07-10 Leinweber Johann Ing Anstalt F Ruehrwerk fuer ein pulverfoermiges gut fuer eine pulverkompaktierpresse
CA2176412C (fr) * 1995-05-18 2008-10-07 David Henry Wilson Presse a comprimes rotative
US6982094B2 (en) * 2001-09-28 2006-01-03 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
ITBO20020282A1 (it) * 2002-05-13 2003-11-13 Bl Macchine Automatiche Incapsulatrice per il confezionamento di prodotti incoerenti in capsule di gelatina dura
DE102006023333B3 (de) * 2006-05-11 2007-11-22 Korsch Ag Tablettiermaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021123339B3 (de) 2021-09-09 2022-08-25 Fette Compacting Gmbh Fülleinrichtung zum Befüllen von Kavitäten einer Rundläuferpresse sowie Rundläuferpresse und System zum kontinuierlichen Verarbeiten von pulverförmigen Produkten
EP4147865A1 (fr) 2021-09-09 2023-03-15 Fette Compacting GmbH Dispositif de remplissage permettant de remplir des cavités d'une presse rotative, ainsi que presse rotative et système de traitement en continu des produits pulvérulents

Also Published As

Publication number Publication date
US8162650B2 (en) 2012-04-24
EP2065174A3 (fr) 2011-08-03
EP2065174A2 (fr) 2009-06-03
DE102007057789B3 (de) 2009-08-06
US20090142437A1 (en) 2009-06-04

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