EP1032493B1 - Compressing machine for tablets - Google Patents

Compressing machine for tablets Download PDF

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Publication number
EP1032493B1
EP1032493B1 EP98951638A EP98951638A EP1032493B1 EP 1032493 B1 EP1032493 B1 EP 1032493B1 EP 98951638 A EP98951638 A EP 98951638A EP 98951638 A EP98951638 A EP 98951638A EP 1032493 B1 EP1032493 B1 EP 1032493B1
Authority
EP
European Patent Office
Prior art keywords
compressing
compression
machine
radial
devices
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
EP98951638A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1032493A1 (en
Inventor
Riccardo Taino
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.)
BL Macchine Automatiche SpA
Original Assignee
BL Macchine Automatiche SpA
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 BL Macchine Automatiche SpA filed Critical BL Macchine Automatiche SpA
Publication of EP1032493A1 publication Critical patent/EP1032493A1/en
Application granted granted Critical
Publication of EP1032493B1 publication Critical patent/EP1032493B1/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
    • 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
    • B30B11/12—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 on the circumference of a rotating drum

Definitions

  • the present invention relates to a compressing machine for tablets comprising a main wheel peripherally equipped with a plurality of radial compressing pistons whose radial excursions are actuated by internal devices including a feeding device and two compression devices.
  • Such a compressing machine is known from document FR 509,362 A.
  • the present invention refers to the technology of packaging machines and specifically to high-performance machines for compressing tablets.
  • the compressing equipment consists of two opposite pistons, vertically set up above and below the peripheral zone of a rotating horizontal disc equipped with peripheral piercing holes filled with doses of powder to be compressed.
  • Such a machine is known from document US 5, 229, 044 A.
  • the upper and lower piston are rotated by an upper and a lower roller, respectively.
  • the upper and the lower roller are rotatably fitted about respective eccentric portions.
  • the traditional configuration entails considerable structural hassles, causing trouble to the operation and the maintenance of the machine.
  • the main flaws of the traditional machines can be charged on the fact that the traditional equipment, consisting of two long vertical compressing pistons, requires a troublesome procedure in order to ensure the coaxiality necessary to center the peripheral holes of the main disc.
  • the centrifugal force causes an uneven wear of the double set of coaxial compressing pistons and of the relative vertical sliding guides. Such uneven wear becomes particularly evident on the external side, where the effect of the centrifugal force is stronger. Furthermore, the impact of both opposite pistons against the tappet rollers produces great noisiness and a considerable wear on the lower edge of the compressing pistons and of the outlined tracks of the guides.
  • each of the feeding device and the two compression devices are mounted eccentrically by means of eccentric devices so as to set the dosing of the feeding device and the compression grade of the compression devices by adjusting the radial outward excursions of the compressing pistons through the regulation of the angular positions of the eccentric devices.
  • the present invention allows to realize a new class of faster, more silent and more versatile compressing machines with greater operation and maintenance economy.
  • Figure 1 presents a general scheme of the basic kinematisms of the compressing machine, consisting in a main wheel externally provided with a set of four operating devices that perform, in coordinated sequence, the operation of powder feeding, the first and the second compression of the doses and eventually the selective expulsion of the compressed tablets.
  • said main wheel is also internally provided with a set of four equipments that, in synchronized combination with the external devices, co-operate in performing all the steps of the continuous operative loop.
  • Figure 2 shows in greater detail the external devices and the equipment inside the main wheel, combined in order to perform the feeding phase of the single doses of powder to be compressed.
  • Figure 3 shows as enlarged radial section of the devices and the instruments to set the exact amount of powder to be loaded at the first compression.
  • Figure 4 shows the external devices and the internal equipment to grade and adjust the first compression phase.
  • Figure 5 is a enlarged radial section of the devices and instruments for the first compression.
  • Figure 6 shows the external devices and the internal instruments to grade the second compression phase.
  • Figure 7 is a enlarged radial section of the devices and instruments that adjust the second compression phase.
  • Figure 8 shows the devices that perform the phase of the selective final expulsion of the compressed tablets.
  • Figure 9 is a enlarged radial section of the devices and instruments for the expulsion of the compressed tablets.
  • Figure 10 represents a set of four mechanisms inside the main wheel.
  • Figure 11 shows an enlarged radial section of the operation of the return tracks, specially outlined in order to allow the internal movements of the compressing pistons.
  • Figure 12 is a general perspective view of the compressing machine in one of the possible configuration of structural lay-out.
  • 1, 2, 3 and 4 constitute the set of four operative devices set up on the outside of the main wheel and that 11, 12, 13 and 14 constitute the set of four instruments co-operating from the inside of the main wheel.
  • 21, 22, 23 and 24 indicate the set of four return profiled tracks that link the outside excursions of the dosing, compressing and expelling pistons.
  • the number of the compressing pistons (15) is just half of the double set of compressing opposite pistons that is usually provided in the traditional compressing machines.
  • the characteristic guide zone of the counterfoil (15) has a diameter much bigger than the tablets' diameter, this ensuring a greater precision, less strain and thus a longer life of the equipment, together with a considerable reduction of the operational costs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • General Preparation And Processing Of Foods (AREA)
EP98951638A 1997-11-18 1998-11-17 Compressing machine for tablets Expired - Lifetime EP1032493B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITBO970675 1997-11-18
IT97BO000675A IT1296554B1 (it) 1997-11-18 1997-11-18 Macchina confezionatrice di compresse.
PCT/IB1998/001827 WO1999025544A1 (en) 1997-11-18 1998-11-17 Compressing machine for tablets

Publications (2)

Publication Number Publication Date
EP1032493A1 EP1032493A1 (en) 2000-09-06
EP1032493B1 true EP1032493B1 (en) 2002-12-11

Family

ID=11342649

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98951638A Expired - Lifetime EP1032493B1 (en) 1997-11-18 1998-11-17 Compressing machine for tablets

Country Status (6)

Country Link
EP (1) EP1032493B1 (it)
AT (1) ATE229431T1 (it)
AU (1) AU9757698A (it)
DE (1) DE69810154T2 (it)
IT (1) IT1296554B1 (it)
WO (1) WO1999025544A1 (it)

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR509362A (fr) * 1916-07-15 1920-11-08 Fritz Kilian Presse rotative
FR899394A (fr) * 1943-11-04 1945-05-29 Presse à boulets comprimés pour la confection de boulets avec du poussier de charbon de bois à l'usage des gazogènes
US3014240A (en) * 1959-12-31 1961-12-26 Procter & Gamble Tablet press
FR2054764A5 (it) * 1969-07-25 1971-05-07 Generale Sucriere Sa
GB1481797A (en) * 1973-11-17 1977-08-03 Manesty Machines Tabletting machines
NL160878C (nl) * 1976-04-20 1979-12-17 Elba Maschf B V Inrichting voor het vervaardigen van blokjes materiaal, in het bijzonder suikerklontjes.
NL7900409A (nl) * 1979-01-18 1980-07-22 Elba Maschf B V Inrichting voor het vervaardigen van blokjes materiaal, in het bijzonder suikerklontjes.
US4403935A (en) * 1980-03-27 1983-09-13 Manesty Machines Limited Tabletting machines
JPH0780076B2 (ja) * 1992-04-28 1995-08-30 株式会社菊水製作所 回転式錠剤機の取着ロードセル点検方法

Also Published As

Publication number Publication date
IT1296554B1 (it) 1999-07-09
WO1999025544A1 (en) 1999-05-27
DE69810154D1 (de) 2003-01-23
ITBO970675A1 (it) 1999-05-18
ITBO970675A0 (it) 1997-11-18
DE69810154T2 (de) 2003-09-11
ATE229431T1 (de) 2002-12-15
EP1032493A1 (en) 2000-09-06
AU9757698A (en) 1999-06-07

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