EP0963836A1 - Rotary machines for the manufacture of tablets - Google Patents

Rotary machines for the manufacture of tablets Download PDF

Info

Publication number
EP0963836A1
EP0963836A1 EP98500229A EP98500229A EP0963836A1 EP 0963836 A1 EP0963836 A1 EP 0963836A1 EP 98500229 A EP98500229 A EP 98500229A EP 98500229 A EP98500229 A EP 98500229A EP 0963836 A1 EP0963836 A1 EP 0963836A1
Authority
EP
European Patent Office
Prior art keywords
tablets
machine
rods
manufacture
punches
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP98500229A
Other languages
German (de)
French (fr)
Other versions
EP0963836B1 (en
Inventor
Rafael Sitjar Canellas
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.)
J BONALS SA
Original Assignee
J BONALS SA
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 J BONALS SA filed Critical J BONALS SA
Publication of EP0963836A1 publication Critical patent/EP0963836A1/en
Application granted granted Critical
Publication of EP0963836B1 publication Critical patent/EP0963836B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32—Discharging presses
    • 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 present invention refers to certain improvements in rotary machines for the manufacture of diverse types of tablets such as tablets of chemicals, food, pharmaceutical products, etc.
  • the type of machines to which this invention refers consist of an assembly or portion that rotates on a shaft that bears multiple elements to shape the tablets.
  • These shaping elements are in turn made up of movable rods or punches, suitably guided in the rotary assembly and which move above a cylindrical formation chamber which receives the amount of material required to form the tablet, allowing the compression action to take place between the lower rods or punches and an upper counter-punch to form the tablet.
  • the tablet is then ejected from the formation chamber via an output slide to continue to other stages of the production process, mainly packaging.
  • the improvements object of the present invention are designed to provide greater versatility in the operation of this type of machines and possible increases in their productivity.
  • the machine described in this patent is fitted with means for pre-selecting, according to a determined distribution, the ejection of the tablets from the various shaping chambers in such a way that they be directed towards different production outputs.
  • This system mainly consists of separate output slides for the manufactured tablets which direct them to different stations for packaging or handling. This provides an approach other than the current system of dividing the production of tablet making machines, and is especially useful for tablets that are not very consistent or fragile, increasing the effective production of the machine.
  • the present improvements include the pre-selection of the ejection of the tablets according to a previously established program so that the different movable rods or punches that manufacture the tablets eject the same at a pre-determined position on the periphery of the rotary part of the machine.
  • This assembly is fitted with various output slides for the finished tablets.
  • the number of slides is not limited as it will solely depend on the previously determined ejection program.
  • any means may be employed to move the compression punches or rods to one or the other position on the periphery of the rotary unit, hydraulic, pneumatic, electromagnetic or mechanical, although the currently preferred system, and the one referred to in this description, is mechanical as they are usually used in this type of machine.
  • the example given here will concentrate on two outputs as an example.
  • the improvements include the placement of separate means for activating the moveable rods, preferably by means of fixed cam surfaces placed in suitable positions, and forming sectors of a circle which is concentric to the rotating assembly of the machine.
  • the shape and relative placement of these cams enable the tablets to be ejected as programmed.
  • These cams operate in combination with a system associated with the punches so that the punches eject the tablets when in contact with one or another of these fixed cams which, in turn, correspond to a selection of one or another of the multiple output slides. Two outputs in the case of the example described here.
  • the improvements are applicable to a machine that consists of a rotary assembly -1-fitted with a plate -2- that supports multiple moveable rods and punches -3- suitably guided in the plate and whose upper ends, usually enlarged into a compression head -4- fit inside cylindrical formation chambers -5- machined in an upper plate -6-.
  • the whole assembly rotates on a vertical shaft shown shaded and indicated by reference number -7-.
  • Figure 2 shows part of the rotary unit -1-, as unwound on a plane, fitted with multiple rods -3-, -3'-, -3''-, ..., whose heads -4- are housed inside the upper cylindrical chambers -5-.
  • the controlled movement of these rods or punches -3-, -3'-, -3''-, ..., determine a variation in the volume of the chamber -5- above the head -4- suitable for receiving the material which is then compressed by the combined action of the counter-punch or a blocking plate not shown in the Figures. This will then allow for sufficient compression to form each of the individual tablets which then enter the ejection area.
  • the present improvements consist of previous programming of the ejection stage of the different rods -3-, -3'-, -3''-, ..., in such a way that the tablets produced are ejected in a predetermined manner into different outputs located at certain positions distributed around rotary assembly -1-.
  • the example has two possible independent outputs -8- and -9- each consisting of an output slide that receive the tablets (indicated schematically by the numbers -10- and -11-) expelled by the ejection stroke which takes place at a predetermined position on the periphery of rotary assembly -1-.
  • This distribution enables the machine to be much more versatile as it may be used to manufacture tablets of different types which are ejected to the different output slides fitted to the machine, or even increase performance by ejecting tablets with the same composition from different outputs, enabling greater input to the final handling machines, usually packaging machines.
  • the improvements object of this invention could also be applied to different types of packaging, with a different number of units per package.
  • the pre-selection of the action of the punches -3-could be made by various fixed cams mounted on a base -12- on which the rotary base -1- turns.
  • the fixed cam -13- is represented as formed by an inclined entry plane and a zone of maximum height and flat profile -14- which coincide with the side rollers -15- of the rods -3-, -3'-, -3''-, ..., destined to eject the tablet by one of the machine outputs.
  • Figure 2 shows the rods -3-, -3'-, -3''-, ..., fitted with side rollers that are operated by the fixed cams -13-, -14-.
  • There is also another ramp also incorporating an inclined entry plane -16- and an area of flat profile -17-with an angular separation from the ramp -13-, -14-, and also with a radial separation to contact with the lower extremes of the rods -3- fitted with contact heads -18-.
  • Figure 3 shows the radial separation between the fixed cam over which the heads -18- operate and the cam which activates the rollers -15- so that each has a separate and suitably co-ordinated action on the rods causing the tablets to be ejected in the correct sequence to one or the other output ramp fitted to the machine.
  • the number of outputs many be varied in combination with the number of fixed cams and elements fitted to the moving rods.
  • pre-selection may be programmed by mechanical means as described here, or using any other method as the rods may be activated by pneumatic, hydraulic, electromagnetic or any other means.
  • the system for programming the ejection will correspond to the action system used, including electromechanical and electronic systems.

Abstract

Improvements in rotary machines for the manufacture of tablets, consisting on a rotary assembly with multiple moveable rods that act in the corresponding formation chamber, provided with various outputs (8,9) for the tablets (10,11) produced around the periphery of the rotating portion of the machine, each of which outlets (8,9) receives the tablets (10,11) ejected from the different formation chambers in a previously programmed sequence of activation of the individual ejection rods during the tablet ejection phase by selective action on the ejectors associated with the various punches fitted to the machine.

Description

  • The present invention refers to certain improvements in rotary machines for the manufacture of diverse types of tablets such as tablets of chemicals, food, pharmaceutical products, etc.
  • The type of machines to which this invention refers consist of an assembly or portion that rotates on a shaft that bears multiple elements to shape the tablets. These shaping elements are in turn made up of movable rods or punches, suitably guided in the rotary assembly and which move above a cylindrical formation chamber which receives the amount of material required to form the tablet, allowing the compression action to take place between the lower rods or punches and an upper counter-punch to form the tablet. The tablet is then ejected from the formation chamber via an output slide to continue to other stages of the production process, mainly packaging.
  • The improvements object of the present invention are designed to provide greater versatility in the operation of this type of machines and possible increases in their productivity.
  • In order to achieve these objectives, the machine described in this patent is fitted with means for pre-selecting, according to a determined distribution, the ejection of the tablets from the various shaping chambers in such a way that they be directed towards different production outputs. This system mainly consists of separate output slides for the manufactured tablets which direct them to different stations for packaging or handling. This provides an approach other than the current system of dividing the production of tablet making machines, and is especially useful for tablets that are not very consistent or fragile, increasing the effective production of the machine.
  • Therefore, the present improvements include the pre-selection of the ejection of the tablets according to a previously established program so that the different movable rods or punches that manufacture the tablets eject the same at a pre-determined position on the periphery of the rotary part of the machine. This assembly is fitted with various output slides for the finished tablets. The number of slides is not limited as it will solely depend on the previously determined ejection program.
  • Any means may be employed to move the compression punches or rods to one or the other position on the periphery of the rotary unit, hydraulic, pneumatic, electromagnetic or mechanical, although the currently preferred system, and the one referred to in this description, is mechanical as they are usually used in this type of machine. In the same way, even though the number of outputs is variable, the example given here will concentrate on two outputs as an example.
  • In the present embodiment, the improvements include the placement of separate means for activating the moveable rods, preferably by means of fixed cam surfaces placed in suitable positions, and forming sectors of a circle which is concentric to the rotating assembly of the machine. The shape and relative placement of these cams enable the tablets to be ejected as programmed. These cams operate in combination with a system associated with the punches so that the punches eject the tablets when in contact with one or another of these fixed cams which, in turn, correspond to a selection of one or another of the multiple output slides. Two outputs in the case of the example described here.
  • The following is a description of a preferred embodiment of a rotary machine for the production of tablets, including the present improvements, based on the following figures:
  • Figure 1 shows a schematic top view of a machine incorporating the present improvements.
  • Figure 2 shows a side view of part of the same machine as shown in Figure 1.
  • Figure 3 shows a schematic view, with a partial section, of the rotary component of the machine.
  • The present improvements are described as an example of the mechanical operation of a machine for the production of tablets. However, as already mentioned, the scope of application is much wider, and includes other types of operation.
  • In the event of using mechanical means, the improvements are applicable to a machine that consists of a rotary assembly -1-fitted with a plate -2- that supports multiple moveable rods and punches -3- suitably guided in the plate and whose upper ends, usually enlarged into a compression head -4- fit inside cylindrical formation chambers -5- machined in an upper plate -6-. The whole assembly rotates on a vertical shaft shown shaded and indicated by reference number -7-.
  • Figure 2 shows part of the rotary unit -1-, as unwound on a plane, fitted with multiple rods -3-, -3'-, -3''-, ..., whose heads -4- are housed inside the upper cylindrical chambers -5-. The controlled movement of these rods or punches -3-, -3'-, -3''-, ..., determine a variation in the volume of the chamber -5- above the head -4- suitable for receiving the material which is then compressed by the combined action of the counter-punch or a blocking plate not shown in the Figures. This will then allow for sufficient compression to form each of the individual tablets which then enter the ejection area.
  • The present improvements consist of previous programming of the ejection stage of the different rods -3-, -3'-, -3''-, ..., in such a way that the tablets produced are ejected in a predetermined manner into different outputs located at certain positions distributed around rotary assembly -1-. As shown in Figure 1, the example has two possible independent outputs -8- and -9- each consisting of an output slide that receive the tablets (indicated schematically by the numbers -10- and -11-) expelled by the ejection stroke which takes place at a predetermined position on the periphery of rotary assembly -1-. This distribution enables the machine to be much more versatile as it may be used to manufacture tablets of different types which are ejected to the different output slides fitted to the machine, or even increase performance by ejecting tablets with the same composition from different outputs, enabling greater input to the final handling machines, usually packaging machines. The improvements object of this invention could also be applied to different types of packaging, with a different number of units per package.
  • In the case of the mechanical configuration shown in the drawings, the pre-selection of the action of the punches -3-could be made by various fixed cams mounted on a base -12- on which the rotary base -1- turns. This means that the ejection will take place when the punch -3- passes over each fixed cam placed in an angular distribution with the corresponding off-set between phases. For example, the fixed cam -13- is represented as formed by an inclined entry plane and a zone of maximum height and flat profile -14- which coincide with the side rollers -15- of the rods -3-, -3'-, -3''-, ..., destined to eject the tablet by one of the machine outputs. For example, Figure 2 shows the rods -3-, -3'-, -3''-, ..., fitted with side rollers that are operated by the fixed cams -13-, -14-. There is also another ramp also incorporating an inclined entry plane -16- and an area of flat profile -17-with an angular separation from the ramp -13-, -14-, and also with a radial separation to contact with the lower extremes of the rods -3- fitted with contact heads -18-. Figure 3 shows the radial separation between the fixed cam over which the heads -18- operate and the cam which activates the rollers -15- so that each has a separate and suitably co-ordinated action on the rods causing the tablets to be ejected in the correct sequence to one or the other output ramp fitted to the machine. Obviously the number of outputs many be varied in combination with the number of fixed cams and elements fitted to the moving rods.
  • Although the present invention has been described as, an example, having a mechanical configuration, it is to be understood that the invention is based on the location of various outputs for the tablets distributed in predetermined positions on the periphery of the rotating component of the machine, which outputs are designed to accept the tablets in a pre-programmed-sequence so that each tablet is ejected into the corresponding output. Therefore, pre-selection may be programmed by mechanical means as described here, or using any other method as the rods may be activated by pneumatic, hydraulic, electromagnetic or any other means. In this case the system for programming the ejection will correspond to the action system used, including electromechanical and electronic systems.

Claims (3)

  1. Improvements in rotary machines for the manufacture of tablets, consisting of a rotary assembly with multiple moveable rods that act in the corresponding formation chamber, characterised by the distribution of various outputs for the tablets produced around the periphery of the rotating portion of the machine, each of which outlets receives the tablets ejected from the different formation chambers in a previously programmed sequence of activation of the individual ejection rods during the tablet ejection phase by selective action on the ejectors associated with the various punches fitted to the machine.
  2. Improvements in rotary machines for the manufacture of tablets according to Claim 1, applicable to the mechanical action of the individual punches, characterised by the location of various fixed cams with a radial separation at pre-determined angles on a fixed base located below the rotating assembly of the machine that act on different parts of the punches to cause ejection of the tablets in a predetermined order and corresponding to the different outputs of the tablets produced.
  3. Improvements in rotary machines for the manufacture of tablets according to the preceding claims and characteristic because the rods are fitted with side rollers activated by fixed cams separated in a radial distribution.
EP19980500229 1998-06-12 1998-10-21 Rotary machines for the manufacture of tablets Expired - Lifetime EP0963836B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES9801307A ES2157726B1 (en) 1998-06-12 1998-06-12 PERFECTION IN THE ROTATING MACHINES FOR THE MANUFACTURE OF TABLETS.
ES9801307 1998-06-12

Publications (2)

Publication Number Publication Date
EP0963836A1 true EP0963836A1 (en) 1999-12-15
EP0963836B1 EP0963836B1 (en) 2003-12-17

Family

ID=8304237

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980500229 Expired - Lifetime EP0963836B1 (en) 1998-06-12 1998-10-21 Rotary machines for the manufacture of tablets

Country Status (3)

Country Link
EP (1) EP0963836B1 (en)
DE (1) DE69820598T2 (en)
ES (2) ES2157726B1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1316411A3 (en) * 2001-12-01 2004-01-21 Fette GmbH Rotor for tabletting press
WO2004007185A1 (en) * 2002-07-15 2004-01-22 I.M.A. Industria Macchine Automatiche S.P.A. A tablet press machine
WO2004094280A1 (en) * 2003-03-21 2004-11-04 Mcneil-Ppc, Inc. Method and apparatus for transferring substrates
US6880694B2 (en) 2001-09-28 2005-04-19 Harry S. Sowden Method and apparatus for transferring substrates
WO2006092683A1 (en) * 2005-03-01 2006-09-08 I.M.A. Industria Macchine Automatiche S.P.A. A tablet press machine
US7838026B2 (en) 2001-09-28 2010-11-23 Mcneil-Ppc, Inc. Burst-release polymer composition and dosage forms comprising the same
US8114328B2 (en) 2001-09-28 2012-02-14 Mcneil-Ppc, Inc. Method of coating a dosage form comprising a first medicant

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053639A (en) *
US4057381A (en) * 1976-02-04 1977-11-08 Emil Korsch, Spezialfabrik Fur Komprimiermaschinen Rotary press
US4253811A (en) * 1979-07-13 1981-03-03 Firma Wilhelm Fette Gmbh Method of and a device for sorting pellets upon their molding in a preforming press
JPS6130605A (en) * 1984-07-19 1986-02-12 Toyota Motor Corp Simultaneous production of molding consisting of different powders by rotary press
JPH0428498A (en) * 1990-05-22 1992-01-31 Takeda Chem Ind Ltd Rotary table for making tablet and tablet device provided with it
EP0549839A1 (en) * 1991-12-30 1993-07-07 J. Bonals, S.A. Machine for the preparation of powder based detergent dose protions
US5698238A (en) * 1993-12-10 1997-12-16 I.M.A. Industria Macchine Automatiche S.P.A. Rotary tabletting machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2932372A1 (en) * 1979-08-09 1981-02-26 Siemens Ag PRESS MACHINE
EP0823324A1 (en) * 1996-08-09 1998-02-11 Courtoy Rotary tablet press

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1053639A (en) *
US4057381A (en) * 1976-02-04 1977-11-08 Emil Korsch, Spezialfabrik Fur Komprimiermaschinen Rotary press
US4253811A (en) * 1979-07-13 1981-03-03 Firma Wilhelm Fette Gmbh Method of and a device for sorting pellets upon their molding in a preforming press
JPS6130605A (en) * 1984-07-19 1986-02-12 Toyota Motor Corp Simultaneous production of molding consisting of different powders by rotary press
JPH0428498A (en) * 1990-05-22 1992-01-31 Takeda Chem Ind Ltd Rotary table for making tablet and tablet device provided with it
EP0549839A1 (en) * 1991-12-30 1993-07-07 J. Bonals, S.A. Machine for the preparation of powder based detergent dose protions
US5698238A (en) * 1993-12-10 1997-12-16 I.M.A. Industria Macchine Automatiche S.P.A. Rotary tabletting machine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 010, no. 187 (M - 493) 2 July 1986 (1986-07-02) *
PATENT ABSTRACTS OF JAPAN vol. 016, no. 195 (M - 1246) 12 May 1992 (1992-05-12) *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6880694B2 (en) 2001-09-28 2005-04-19 Harry S. Sowden Method and apparatus for transferring substrates
US7182199B2 (en) 2001-09-28 2007-02-27 Mcneil-Ppc, Inc. Systems, methods and apparatuses for manufacturing dosage forms
US7240785B2 (en) 2001-09-28 2007-07-10 Mcneil-Ppc, Inc. Method and apparatus for transferring substrates
US7838026B2 (en) 2001-09-28 2010-11-23 Mcneil-Ppc, Inc. Burst-release polymer composition and dosage forms comprising the same
US8114328B2 (en) 2001-09-28 2012-02-14 Mcneil-Ppc, Inc. Method of coating a dosage form comprising a first medicant
US8673190B2 (en) 2001-09-28 2014-03-18 Mcneil-Ppc, Inc. Method for manufacturing dosage forms
EP1316411A3 (en) * 2001-12-01 2004-01-21 Fette GmbH Rotor for tabletting press
US7491052B2 (en) 2001-12-01 2009-02-17 Fette Gmbh Rotor for a tablet press
USRE45590E1 (en) 2001-12-01 2015-06-30 Fette Compacting Gmbh Ring segment for a tablet press
WO2004007185A1 (en) * 2002-07-15 2004-01-22 I.M.A. Industria Macchine Automatiche S.P.A. A tablet press machine
WO2004094280A1 (en) * 2003-03-21 2004-11-04 Mcneil-Ppc, Inc. Method and apparatus for transferring substrates
WO2006092683A1 (en) * 2005-03-01 2006-09-08 I.M.A. Industria Macchine Automatiche S.P.A. A tablet press machine

Also Published As

Publication number Publication date
ES2157726A1 (en) 2001-08-16
DE69820598D1 (en) 2004-01-29
DE69820598T2 (en) 2004-09-30
ES2210696T3 (en) 2004-07-01
ES2157726B1 (en) 2002-03-01
EP0963836B1 (en) 2003-12-17

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