EP0856395A2 - Rotary press - Google Patents

Rotary press Download PDF

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Publication number
EP0856395A2
EP0856395A2 EP98250015A EP98250015A EP0856395A2 EP 0856395 A2 EP0856395 A2 EP 0856395A2 EP 98250015 A EP98250015 A EP 98250015A EP 98250015 A EP98250015 A EP 98250015A EP 0856395 A2 EP0856395 A2 EP 0856395A2
Authority
EP
European Patent Office
Prior art keywords
pressure roller
drive
rotor
rotary press
roller unit
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
EP98250015A
Other languages
German (de)
French (fr)
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EP0856395B1 (en
EP0856395A3 (en
Inventor
Michael Matthes
Jürgen Dr. Pagel
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 Pressen GmbH
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Publication date
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Publication of EP0856395A2 publication Critical patent/EP0856395A2/en
Publication of EP0856395A3 publication Critical patent/EP0856395A3/en
Application granted granted Critical
Publication of EP0856395B1 publication Critical patent/EP0856395B1/en
Anticipated expiration legal-status Critical
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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
    • B30B15/0023—Drive arrangements for movable carriers, e.g. turntables
    • 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
    • B30B15/0076—Noise or vibration isolation means

Definitions

  • the invention relates to a rotary press, especially for the production of tablets, with a Frame, a rotor with drive, at least one Pressure roller unit and a housing.
  • Rotary presses consist of a frame, a rotor with drive, upper and lower rockers, which guide the upper and lower pressure rollers, a frame housing, corner connectors and a head plate consist.
  • the forces occurring in the pressing process are about the stamp and the wings in the headstock and initiated the frame immediately and excite these membrane-like components by the pressing forces to vibrations, which in turn leads to considerable noise emissions to lead.
  • a rotary press of the generic type is out the US-PS 3,891,375 previously known.
  • the Base frame made of a rectangular frame, on the The rotor is mounted on the upper frame plate consists of brackets screwed onto the frame, which carry a control unit above the rotor.
  • the pressure roller units are frame-like and on the side, screwed to the frame Carriers stored.
  • the disadvantage here is the absorption of the compressive forces of the two pressure roller units from which the housing forming supports, which makes it suitable for high loads to deformation of the housing and related Vibrations and noise of the housing comes.
  • the invention is therefore based on the object a rotary press of the generic type in this regard to improve the inclusion of the in the Forces introduced by pressure rollers is improved and which works with less vibrations and less noise.
  • the invention provides that one the rotor with drive and the pressure roller unit absorbing solid, bending and torsion resistant base plate picked up from the base frame by means of elastic bearings is, the rigidity of this elastic Bearings and the mass of this complete press cell on each other are tuned that the natural frequency of this Vibration system in all six possible degrees of freedom much smaller than the lowest The lowest stamp engagement frequency occurring at the speed as the excitation frequency.
  • the complete press cell will thereby excited supercritically during the pressing process.
  • An impact from dynamic forces from the pressing process not on components of the rotary press arranged on the base plate almost does not take place. That’s how she works Tablet press low vibration and low noise and can nevertheless transmit large pressing forces.
  • the housing is only connected to the base frame and compared to the base plate by means of smaller ones supported elastic bearing, the stiffness of the elastic bearing is chosen so that from the connected Mass and stiffness of the elastic The resulting natural frequency is much lower than the lowest punch engagement frequency. So there are almost no vibrations and therefore almost no noise from the press forces Vibrations excited parts, such as rotor with drive and pressure roller unit, transferred to the housing.
  • the housing is designed so that the upper Head part of the machine receiving part of this housing extends over the entire height of the machine and the machine is limited on one vertical side.
  • This housing segment is preferably used for recording the main electric drive, the incoming and outgoing connection lines, the supply units and the supply lines of the machine.
  • a wall separates this supply side of the rotary press from the clean room side of the press cell.
  • the elastic bearings are as two metallic bearing elements and one connecting them elastic buffer trained.
  • Such elastic bearings are under the SCHWINGMETALL brand from the company Continental.
  • the rotary press comprises a massive, bending and torsionally rigid base plate 1, a rotor 2, a Pressure roller unit 3 and a drive motor 4, the are stored on the solid base plate 1, and a base frame 6 standing on elastic feet 5, on which the massive base plate 1 by means of elastic Bearing 7 is mounted, and a surrounding these components Housing 8 that by means of smaller elastic bearings 9 is connected to the base frame 6.
  • a bearing bush 11 for the axis 12 of here Not shown rotor 2 arranged on the solid base plate 1 a bearing bush 11 for the axis 12 of here Not shown rotor 2 arranged.
  • the axis 12 of the rotor 2 carries on the underside of the base plate 1 a toothed belt pulley 13.
  • the pressure roller unit 3 is included upper and lower pressure roller 14, 15 adjustable stored.
  • the massive one Base plate 1 attached drive motor 4 with on the Bottom toothed belt pinion 16, with a Toothed belt 17 around the toothed belt pulley 13 for the Rotor 2 and the toothed belt pinion 16 put around and is tensioned by a spring washer 18.
  • elastic bearings 7 support the massive base plate 1 on the base frame 6 shown in FIG. 1 elastic bearings 7 are made of two metallic bearing elements 19, 20 and an elastic connecting them Buffer 21 formed.
  • the elastic bearings 7 are under the brand SCHWINGMETALL from Continental customary.
  • Fig. 3 shows the bottom view of the massive, bending and torsionally rigid base plate 1 with the four elastic bearings 7, the rotor 2 driving large toothed belt pulley 13, which from the drive motor 4th driven toothed belt pinion 16 and the toothed belt 17 exciting clamping washer 18.
  • Under one Angle of approximately 35 ° to the longitudinal axis 22 of the base plate 1 extend elongated holes 23, the receiving and Storage each serve a pressure roller unit 3, the is described in more detail below with reference to FIG. 4.
  • the pressure roller unit 3 of the rotary press exists from a solid, cylindrical section Guide column 10, in its cylindrical Interior 26 is also cylindrical and hollow trained upper pressure roller receptacle 24 and one cylindrical and internally hollow lower pressure roller holder 25 are slidably mounted, the upper and lower pressure roller receptacles 24, 25 also are solid and stable.
  • the guide column 10 In the upper area the guide column 10 are an adjustment drive 27 for the upper pressure roller 14 and in the central area of the Guide column 10, an actuator 28 for the lower Pressure roller 15 arranged.
  • the upper adjustment drive 27 is used to adjust the upper pressure roller 14 and hence the immersion depth of the from the upper pressure roller 14 acted upon upper stamp 30 and for common i.e. parallel adjustment of upper and lower Pressure roller 14 or 15 with a fixed distance and thus to Press zone adjustment.
  • the adjustment drive 28 for the lower pressure roller 15 is used to adjust the Tablet thickness relative to upper pressure roller 14.
  • the two adjustment drives 27, 28 each exist from a geared motor 32 with drive spindle 33, the engages in a spindle nut 34 which is fixed to the Pressure roller receptacle 24, 25 is connected.
  • the upper pressure roller receptacle 24 with the pressure roller axis 29 for the upper pressure roller 14 and the lower pressure roller holder 25 with the pressure roller axis 29 for the lower pressure roller 15 within the Guide column 10 can be moved adjustable.
  • the pressure roller unit 3 is with its guide column 10 standing vertically on the solid base plate 1 stored and working horizontally Adjustment drive 35 movable. Inside the lower one The end of the guide column 10 is a truncated cone Mounting flange 36 by means of three distributed around the circumference Ring segments 46 set. In the mounting flange 36 is within the central axis of the Guide column 10 a tie rod 37 screwed in a neck 38 at the lower end of the truncated cone Fastening flange 36 penetrates the is movable within an elongated hole 23 which in the massive base plate 1 is introduced.
  • the tie rod 37 is below the base plate 1 of the wedge 39 within of the stop ring 40 penetrated by means of a Dome piece 41 held by the T-head of the tie rod 37 is.
  • the wedge 39 is by means of a screw spindle 42 detachable and pullable, which at the free end in one vertical bolts 47 fixed in the base plate 1 rotatable and horizontally immovable.
  • To the The screw spindle 42 is locked on a spindle head 43 rotated until the neck 38 of the Mounting flange 36 and the stop ring 40 on strike the left end of slot 23. It presses the spindle 42 under the action of a compression spring 44 Tip 45 against the tie rod 37.
  • the wedge 39 moved to the left so that the guide column 10 by means of the tie rod 37 firmly on the top of the Base plate 1 of the rotary tablet press is seated.
  • Fig. 1 shows one in Fig. 1 on the left below the base plate 1 and next to the base frame 6 and extending right behind the pressure roller unit 3 Partition 48 which seals the housing 8 on all sides encloses.
  • the partition 48 can be an on-site wall and allows the rotary press to be subdivided in one in Fig. 1 to the right of the partition 48 a multifunction column 51 and in one below the base plate 1 located supply area and a clean room area located above the base plate 1 with that of the rotor 2 and the pressure roller unit 3 press cell formed.
  • the clean room area the press cell is through the base plate 1, which is in Fig. 1 wall 49 of the multifunction column shown on the left 51, the head 50 and the partition 48 from the service area Cut.
  • the coverage area be used regardless of the clean room area, around the bottom and back of the rotary press located mechanical and electrical drives and Supply units from outside the clean room too serve.
  • the energy supply to the rotary press can from above or below directly into the multifunction column 51 take place.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Presses And Accessory Devices Thereof (AREA)
  • Glanulating (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

A novel rotary press comprising frame, driven rotor, pressure roller and casing, is used for tray production. Here the novel feature is the mounting of the rotor (2), drive and pressure roller unit (3). They are carried by the massive base plate (1), which is flexurally rigid and resists warping. This entire assembly is supported on resilient mountings (7) on the base frame (6). The rigidity of the resilient mountings and the overall mass of the assembly carried by them, are matched for low resonance frequency in all six degrees of freedom. The resonance frequency is less than the excitation frequency due to stamping, at the lowest speed used.

Description

Die Erfindung bezieht sich auf eine Rundlaufpresse, insbesondere zur Herstellung von Tabletten, mit einem Gestell, einem Rotor mit Antrieb, mindestens einer Druckrolleneinheit und einem Gehäuse.The invention relates to a rotary press, especially for the production of tablets, with a Frame, a rotor with drive, at least one Pressure roller unit and a housing.

Bekannt sind Rundlaufpressen, die aus einem Gestell, einem Rotor mit Antrieb, oberen und unteren Schwingen, welche die obere und die untere Druckrolle führen, einem Gestellgehäuse, Eckverbindern und einer Kopfplatte bestehen. Die im Preßprozeß auftretenden Kräfte werden über die Stempel und die Schwingen in die Kopfplatte und das Gestell unmittelbar eingeleitet und erregen diese membranartigen Bauteile durch die Preßkräfte zu Schwingungen, die damit zu erheblichen Lärmemissionen führen. Rotary presses are known which consist of a frame, a rotor with drive, upper and lower rockers, which guide the upper and lower pressure rollers, a frame housing, corner connectors and a head plate consist. The forces occurring in the pressing process are about the stamp and the wings in the headstock and initiated the frame immediately and excite these membrane-like components by the pressing forces to vibrations, which in turn leads to considerable noise emissions to lead.

Eine Rundlaufpresse der gattungsgemäßen Art ist aus der US-PS 3,891,375 vorbekannt. Hierbei besteht das Basisgestell aus einem rechteckigen Rahmen, auf dessen oberer Rahmenplatte der Rotor gelagert ist.Das Gehäuse besteht aus auf das Rahmengestell aufgeschraubten Trägern, die oberhalb des Rotors eine Steuereinheit tragen. Die Druckrolleneinheiten sind rahmenartig ausgebildet und an seitlichen, an das Rahmengestell angeschraubten Trägern gelagert.A rotary press of the generic type is out the US-PS 3,891,375 previously known. Here is the Base frame made of a rectangular frame, on the The rotor is mounted on the upper frame plate consists of brackets screwed onto the frame, which carry a control unit above the rotor. The pressure roller units are frame-like and on the side, screwed to the frame Carriers stored.

Nachteilig hierbei ist die Aufnahme der Druckkräfte der beiden Druckrolleneinheiten von den das Gehäuse bildenden Trägern, wodurch es bei hohen Belastungen zu Verformungen des Gehäuses und damit verbundenen Schwingungen und Geräuschen des Gehäuses kommt.The disadvantage here is the absorption of the compressive forces of the two pressure roller units from which the housing forming supports, which makes it suitable for high loads to deformation of the housing and related Vibrations and noise of the housing comes.

Die Erfindung liegt von daher die Aufgabe zugrunde, eine Rundlaufpresse der gattungsgemäßen Art dahingehend zu verbessern, daß die Aufnahme der in die Druckrollen eingeleiteten Kräfte verbessert ist und die schwingungs- und geräuscharmer arbeitet.The invention is therefore based on the object a rotary press of the generic type in this regard to improve the inclusion of the in the Forces introduced by pressure rollers is improved and which works with less vibrations and less noise.

Zur Lösung dieser Aufgabe sieht die Erfindung vor, daß eine den Rotor mit Antrieb und die Druckrolleneinheit aufnehmende massive,biege- und verwindungssteife Grund platte mittels elastischer Lager vom Grundgestell aufgenommen ist, wobei die Steifigkeit dieser elastischen Lager und die Masse dieser kompletten Preßzelle so aufeinander abgestimmt sind, daß die Eigenfrequenz dieses Schwingungssystems in allen sechs möglichen Freiheitsgraden wesentlich kleiner als die bei niedrigster Drehzahl auftretende tiefste Stempeleingriffsfrequenz als Erregerfrequenz ist. Die komplette Preßzelle wird dadurch während des Preßprozesses überkritisch erregt. Damit werden die von den Druckrollen auf die Druckrolleneinheit wirkenden dynamischen Kräfte und Momente und die dynamischen Kräfte und Momente des Rotorantriebes fast ausschließlich von der massiven Grundplatte aufgenommen, die am Grundgestell mittels der elastischen Lager gelagert ist. Eine Einwirkung von dynamischen Kräften aus dem Preßvorgang auf nicht auf der Grundplatte angeordnete Bauelemente der Rundlaufpresse findet nahezu nicht statt. Damit arbeitet die Tablettenpresse schwingungs- und geräuscharm und kann dennoch große Preßkräfte übertragen.To achieve this object, the invention provides that one the rotor with drive and the pressure roller unit absorbing solid, bending and torsion resistant base plate picked up from the base frame by means of elastic bearings is, the rigidity of this elastic Bearings and the mass of this complete press cell on each other are tuned that the natural frequency of this Vibration system in all six possible degrees of freedom much smaller than the lowest The lowest stamp engagement frequency occurring at the speed as the excitation frequency. The complete press cell will thereby excited supercritically during the pressing process. This transfers the pressure rollers onto the pressure roller unit acting dynamic forces and moments and the dynamic forces and moments of the rotor drive almost exclusively from the solid base plate added to the base frame using the elastic bearing is stored. An impact from dynamic forces from the pressing process not on components of the rotary press arranged on the base plate almost does not take place. That’s how she works Tablet press low vibration and low noise and can nevertheless transmit large pressing forces.

Das den Rotor mit Antrieb, die Druckrolleneinheit, die massive Grundplatte und das Grundgestell umschließende Gehäuse ist aussschließlich mit dem Grundgestell verbunden und gegenüber der Grundplatte mittels kleinerer elastischer Lager abgestützt, wobei die Steife der elastischen Lager so gewählt ist, daß die aus der angeschlossenen Masse und der Steife der elastischen Lager sich ergebende Eigenfrequenz wesentlich niedriger als die kleinste Stempeleingriffsfrequenz liegt. Damit werden nahezu keine Schwingungen und somit fast keine Geräusche von den durch die Preßkräfte zu Schwingungen angeregten Teilen, wie Rotor mit Antrieb und Druckrolleneinheit, auf das Gehäuse übertragen.That the rotor with drive, the pressure roller unit, the massive base plate and enclosing the base frame The housing is only connected to the base frame and compared to the base plate by means of smaller ones supported elastic bearing, the stiffness of the elastic bearing is chosen so that from the connected Mass and stiffness of the elastic The resulting natural frequency is much lower than the lowest punch engagement frequency. So there are almost no vibrations and therefore almost no noise from the press forces Vibrations excited parts, such as rotor with drive and pressure roller unit, transferred to the housing.

Das Gehäuse ist so ausgebildet, daß der das obere Kopfteil der Maschine aufnehmende Teil dieses Gehäuses sich über die gesamte Höhe der Maschine erstreckt und die Maschine auf einer senkrechten Seite begrenzt.The housing is designed so that the upper Head part of the machine receiving part of this housing extends over the entire height of the machine and the machine is limited on one vertical side.

Dieses Gehäusesegment dient vorzugsweise der Aufnahme des elektrischen Hauptantriebes, der ankommenden und abgehenden Anschlußleitungen, der Versorgungsaggregate und der Versorgungsleitungen der Maschine. Eine Wand trennt diese Versorgungsseite der Rundlaufpresse von der Reinraumseite der Preßzelle.This housing segment is preferably used for recording the main electric drive, the incoming and outgoing connection lines, the supply units and the supply lines of the machine. A wall separates this supply side of the rotary press from the clean room side of the press cell.

In bevorzugter Weise sind die elastischen Lager als zwei metallische Lagerelemente und einem diese verbindenden elastischen Puffer ausgebildet. Derartige elastische Lager sind unter der Marke SCHWINGMETALL der Firma Continental handelsüblich.Preferably the elastic bearings are as two metallic bearing elements and one connecting them elastic buffer trained. Such elastic bearings are under the SCHWINGMETALL brand from the company Continental.

Die Erfindung ist nachfolgend anhand eines in den Zeichnungen dargestellten Ausführungsbeispieles einer Rundlauf-Tablettenpresse näher erläutert. Es zeigen:

Fig. 1
eine prinzipielle Ansicht der Rundlauf-Tablettenpresse,
Fig. 2
einen Vertikalschnitt durch die massive Grundplatte der Rundlauf-Tablettenpresse mit Rotorantrieb und Druckrolleneinheit,
Fig. 3
die Unterseite der massiven Grundplatte mit Rotorantrieb und
Fig. 4
einen vertikalen Querschnitt durch die Druckrolleneinheit.
The invention is explained below with reference to an embodiment of a rotary tablet press shown in the drawings. Show it:
Fig. 1
a basic view of the rotary tablet press,
Fig. 2
a vertical section through the solid base plate of the rotary tablet press with rotor drive and pressure roller unit,
Fig. 3
the underside of the solid base plate with rotor drive and
Fig. 4
a vertical cross section through the pressure roller unit.

Die Rundlaufpresse umfaßt eine massive, biege- und verwindungssteife Grundplatte 1, einen Rotor 2, eine Druckrolleneinheit 3 und einen Antriebsmotor 4, die auf der massiven Grundplatte 1 gelagert sind, sowie ein auf elastischen Füßen 5 stehendes Grundgestell 6, auf dem die massive Grundplatte 1 mittels elastischer Lager 7 gelagert ist, und ein diese Bauteile umgebendes Gehäuse 8, das mittels kleinerer elastischer Lager 9 mit dem Grundgestell 6 verbunden ist.The rotary press comprises a massive, bending and torsionally rigid base plate 1, a rotor 2, a Pressure roller unit 3 and a drive motor 4, the are stored on the solid base plate 1, and a base frame 6 standing on elastic feet 5, on which the massive base plate 1 by means of elastic Bearing 7 is mounted, and a surrounding these components Housing 8 that by means of smaller elastic bearings 9 is connected to the base frame 6.

Wie es die Figur 2 zeigt, ist auf der massiven Grundplatte 1 eine Lagerbuchse 11 für die Achse 12 des hier nicht dargestellten Rotors 2 angeordnet. Die Achse 12 des Rotors 2 trägt auf der Unterseite der Grundplatte 1 eine Zahnriemenscheibe 13. Neben der Lagerbuchse 11 für den Rotor 2 ist die Druckrolleneinheit 3 mit oberer und unterer Druckrolle 14, 15 einstellbar gelagert. Daneben befindet sich der auf der massiven Grundplatte 1 befestigte Antriebsmotor 4 mit auf der Unterseite befindlichem Zahnriemenritzel 16, wobei ein Zahnriemen 17 um die Zahnriemenscheibe 13 für den Rotor 2 und das Zahnriemenritzel 16 herumgelegt und von einer Spannscheibe 18 gespannt ist.As shown in Figure 2, is on the solid base plate 1 a bearing bush 11 for the axis 12 of here Not shown rotor 2 arranged. The axis 12 of the rotor 2 carries on the underside of the base plate 1 a toothed belt pulley 13. In addition to the bearing bush 11 for the rotor 2, the pressure roller unit 3 is included upper and lower pressure roller 14, 15 adjustable stored. Next to it is the massive one Base plate 1 attached drive motor 4 with on the Bottom toothed belt pinion 16, with a Toothed belt 17 around the toothed belt pulley 13 for the Rotor 2 and the toothed belt pinion 16 put around and is tensioned by a spring washer 18.

Vier elastische Lager 7 tragen die massive Grundplatte 1 auf dem in Fig. 1 dargestellten Grundgestell 6. Die elastischen Lager 7 sind aus zwei metallischen Lagerelementen 19, 20 und einem diese verbindenden elastischen Puffer 21 gebildet. Die elastischen Lager 7 sind unter der Marke SCHWINGMETALL von Firma Continental handelsüblich. Four elastic bearings 7 support the massive base plate 1 on the base frame 6 shown in FIG. 1 elastic bearings 7 are made of two metallic bearing elements 19, 20 and an elastic connecting them Buffer 21 formed. The elastic bearings 7 are under the brand SCHWINGMETALL from Continental customary.

Die Fig. 3 zeigt die Untersicht der massiven, biege-und verwindungssteifen Grundplatte 1 mit den vier elastischen Lagern 7, der den Rotor 2 antreibenden großen Zahnriemenscheibe 13, dem vom Antriebsmotor 4 angetriebenen Zahnriemenritzel 16 und der den Zahnriemen 17 spannenden Spannscheibe 18. Unter einem Winkel von etwa 35° zur Längsachse 22 der Grundplatte 1 erstrecken sich Langlöcher 23, die der Aufnahme und Lagerung je einer Druckrolleneinheit 3 dienen, die nachfolgend anhand der Fig. 4 näher beschrieben wird.Fig. 3 shows the bottom view of the massive, bending and torsionally rigid base plate 1 with the four elastic bearings 7, the rotor 2 driving large toothed belt pulley 13, which from the drive motor 4th driven toothed belt pinion 16 and the toothed belt 17 exciting clamping washer 18. Under one Angle of approximately 35 ° to the longitudinal axis 22 of the base plate 1 extend elongated holes 23, the receiving and Storage each serve a pressure roller unit 3, the is described in more detail below with reference to FIG. 4.

Die Druckrolleneinheit 3 der Rundlaufpresse besteht aus einer im Querschnitt zylindrischen, massiv ausgebildeten Führungssäule 10, in deren zylindrischem Innenraum 26 eine ebenfalls zylindrische und hohl ausgebildete obere Druckrollenaufnahme 24 und eine zylindrische und innen hohl ausgebildete untere Druckrollenaufnahme 25 gleitbar gelagert sind, wobei die obere und untere Druckrollenaufnahme 24, 25 ebenfalls massiv und stabil ausgebildet sind. Im oberen Bereich der Führungssäule 10 sind ein Verstellantrieb 27 für die obere Druckrolle 14 und im mittleren Bereich der Führungssäule 10 ein Verstellantrieb 28 für die untere Druckrolle 15 angeordnet. Der obere Verstellantrieb 27 dient zur Einstellung der oberen Druckrolle 14 und damit der Eintauchtiefe des von der oberen Druckrolle 14 beaufschlagten Oberstempels 30 und zur gemeinsamen, d.h. parallelen Verstellung von oberer und unterer Druckrolle 14 bzw. 15 mit festem Abstand und damit zur Preßzonenverstellung. Der Verstellantrieb 28 für die untere Druckrolle 15 dient zur Einstellung der Tablettendicke relativ zur oberen Druckrolle 14.The pressure roller unit 3 of the rotary press exists from a solid, cylindrical section Guide column 10, in its cylindrical Interior 26 is also cylindrical and hollow trained upper pressure roller receptacle 24 and one cylindrical and internally hollow lower pressure roller holder 25 are slidably mounted, the upper and lower pressure roller receptacles 24, 25 also are solid and stable. In the upper area the guide column 10 are an adjustment drive 27 for the upper pressure roller 14 and in the central area of the Guide column 10, an actuator 28 for the lower Pressure roller 15 arranged. The upper adjustment drive 27 is used to adjust the upper pressure roller 14 and hence the immersion depth of the from the upper pressure roller 14 acted upon upper stamp 30 and for common i.e. parallel adjustment of upper and lower Pressure roller 14 or 15 with a fixed distance and thus to Press zone adjustment. The adjustment drive 28 for the lower pressure roller 15 is used to adjust the Tablet thickness relative to upper pressure roller 14.

Die beiden Verstellantriebe 27, 28 bestehen jeweils aus einem Getriebemotor 32 mit Antriebspindel 33, die in eine Spindelmutter 34 eingreift, die fest mit der Druckrollenaufnahme 24, 25 verbunden ist. Hierdurch können die obere Druckrollenaufnahme 24 mit der Druckrollenachse 29 für die obere Druckrolle 14 und die untere Druckrollenaufnahme 25 mit der Druckrollenachse 29 für die untere Druckrolle 15 innerhalb der Führungssäule 10 einstellbar bewegt werden.The two adjustment drives 27, 28 each exist from a geared motor 32 with drive spindle 33, the engages in a spindle nut 34 which is fixed to the Pressure roller receptacle 24, 25 is connected. Hereby can the upper pressure roller receptacle 24 with the pressure roller axis 29 for the upper pressure roller 14 and the lower pressure roller holder 25 with the pressure roller axis 29 for the lower pressure roller 15 within the Guide column 10 can be moved adjustable.

Die Druckrolleneinheit 3 ist mit ihrer Führungssäule 10 auf der massiven Grundplatte 1 vertikal stehend gelagert und mittels des horizontal arbeitenden Verstellantriebes 35 bewegbar. Innerhalb des unteren Endes der Führungssäule 10 ist ein kegelstumpfförmiger Befestigungsflansch 36 mittels dreier am Umfang verteilter Ringsegmente 46 festgelegt. Im Befestigungsflansch 36 ist innerhalb der Zentralachse der Führungssäule 10 ein Zuganker 37 eingeschraubt, der einen Halsansatz 38 am unteren Ende des kegelstumpfförmigen Befestigungsflansches 36 durchdringt, der innerhalb eines Langloches 23 bewegbar ist, das in die massive Grundplatte 1 eingebracht ist. Der Zuganker 37 ist unterhalb der Grundplatte 1 vom Keil 39 innerhalb des Anschlagringes 40 durchdrungen, der mittels eines Kalottenstückes 41 vom T-Kopf des Zugankers 37 gehalten ist. Der Keil 39 ist mittels einer Schraubspindel 42 lös- und ziehbar, die sich am freien Ende in einem in der Grundplatte 1 festgelegten vertikalen Bolzen 47 drehbar und horizontal unverschiebbar befindet. Zum Arretieren wird die Schraubspindel 42 an einem Spindelkopf 43 solange gedreht, bis der Halsansatz 38 des Befestigungsflansches 36 und der Anschlagring 40 am linken Ende des Langloches 23 anschlagen. Dabei preßt die Spindel 42 unter Wirkung einer Druckfeder 44 die Spitze 45 gegen den Zuganker 37. Ferner wird der Keil 39 nach links derart verschoben, daß die Führungssäule 10 mittels des Zugankers 37 fest auf der Oberseite der Grundplatte 1 der Rundlauftablettenpresse aufsitzt.The pressure roller unit 3 is with its guide column 10 standing vertically on the solid base plate 1 stored and working horizontally Adjustment drive 35 movable. Inside the lower one The end of the guide column 10 is a truncated cone Mounting flange 36 by means of three distributed around the circumference Ring segments 46 set. In the mounting flange 36 is within the central axis of the Guide column 10 a tie rod 37 screwed in a neck 38 at the lower end of the truncated cone Fastening flange 36 penetrates the is movable within an elongated hole 23 which in the massive base plate 1 is introduced. The tie rod 37 is below the base plate 1 of the wedge 39 within of the stop ring 40 penetrated by means of a Dome piece 41 held by the T-head of the tie rod 37 is. The wedge 39 is by means of a screw spindle 42 detachable and pullable, which at the free end in one vertical bolts 47 fixed in the base plate 1 rotatable and horizontally immovable. To the The screw spindle 42 is locked on a spindle head 43 rotated until the neck 38 of the Mounting flange 36 and the stop ring 40 on strike the left end of slot 23. It presses the spindle 42 under the action of a compression spring 44 Tip 45 against the tie rod 37. Furthermore, the wedge 39 moved to the left so that the guide column 10 by means of the tie rod 37 firmly on the top of the Base plate 1 of the rotary tablet press is seated.

Zum Vorziehen der Druckrolleneinheit 3 und damit der Druckrollen 14,15 aus dem Eingriffsbereich von Ober-bzw. Unterstempel 30 bzw. 31 wird die Schraubspindel 42 in Gegenrichtung mittels des Spindelkopfes 43 gedreht, die Druckfeder 44 entlastet und der Keil 39 aus dem Anschlagring 40 um einen geringen Bereich herausgefahren, so daß die Führungssäule 10 aus ihrer festen Verspannung an der Grundplatte 1 gelöst wird und unter weiterer Betätigung der Schraubspindel 42 nach rechts gezogen werden kann.For pulling the pressure roller unit 3 and thus the Pressure rollers 14, 15 from the area of engagement of upper or Lower screw 30 or 31 becomes the screw spindle 42 in the opposite direction by means of the spindle head 43 rotated, the compression spring 44 is relieved and the wedge 39 from the stop ring 40 around a small area moved out so that the guide column 10 from her fixed tension on the base plate 1 is released and with further actuation of the screw spindle 42 can be dragged to the right.

Die Fig. 1 zeigt eine sich in Fig. 1 links unterhalb der Grundplatte 1 und neben dem Grundgestell 6 und rechts hinter der Druckrolleneinheit 3 erstreckenden Trennwand 48, die das Gehäuse 8 allseitig abgedichtet umschließt. Die Trennwand 48 kann eine bauseitige Wand sein und ermöglicht eine Unterteilung der Rundlaufpresse in einen in Fig. 1 rechts der Trennwand 48 mit einer Multifunktionssäule 51 und in einen unterhalb der Grundplatte 1 gelegenen Versorgungsbereich und einen oberhalb der Grundplatte 1 gelegenen Reinraumbereich mit der von dem Rotor 2 und der Druckrolleneinheit 3 gebildeten Preßzelle. Der Reinraumbereich der Preßzelle ist durch die Grundplatte 1, die in Fig. 1 links dargestellte Wand 49 der Multifunktionssäule 51, das Kopfstück 50 und die Trennwand 48 vom Versorgungsbereich getrennt. Somit kann der Versorgungsbereich unabhängig vom Reinraumbereich benutzt werden, um die auf der Unter- und Rückseite der Rundlaufpresse gelegenen mechanischen und elektrischen Antriebe und Versorgungseinheiten von außerhalb des Reinraumes zu bedienen. Die Energiezufuhr zur Rundlaufpresse kann von oben oder unten direkt in die Multifunktionssäule 51 erfolgen. Fig. 1 shows one in Fig. 1 on the left below the base plate 1 and next to the base frame 6 and extending right behind the pressure roller unit 3 Partition 48 which seals the housing 8 on all sides encloses. The partition 48 can be an on-site wall and allows the rotary press to be subdivided in one in Fig. 1 to the right of the partition 48 a multifunction column 51 and in one below the base plate 1 located supply area and a clean room area located above the base plate 1 with that of the rotor 2 and the pressure roller unit 3 press cell formed. The clean room area the press cell is through the base plate 1, which is in Fig. 1 wall 49 of the multifunction column shown on the left 51, the head 50 and the partition 48 from the service area Cut. Thus, the coverage area be used regardless of the clean room area, around the bottom and back of the rotary press located mechanical and electrical drives and Supply units from outside the clean room too serve. The energy supply to the rotary press can from above or below directly into the multifunction column 51 take place.

BEZUGSZEICHENLISTEREFERENCE SIGN LIST

11
GrundplatteBase plate
22nd
Rotorrotor
33rd
DruckrolleneinheitPressure roller unit
44th
AntriebsmotorDrive motor
55
elastischer Fußelastic foot
66
GrundgestellBase frame
77
elastisches Lagerelastic bearing
88th
Gehäusecasing
99
kleines elastisches Lagersmall elastic bearing
1010th
FührungssäuleGuide pillar
1111
LagerbuchseBearing bush
1212th
Achseaxis
1313
ZahnriemenscheibeTiming belt pulley
1414
Druckrolle, oberePressure roller, upper
1515
Druckrolle, unterePressure roller, lower
1616
ZahnriemenritzelTiming belt pinion
1717th
ZahnriemenTiming belt
1818th
SpannscheibeSpring washer
1919th
LagerelementBearing element
2020th
LagerelementBearing element
2121
Pufferbuffer
2222
LängsachseLongitudinal axis
2323
LanglochLong hole
2424th
obere Druckrollenaufnahmeupper pressure roller holder
2525th
untere Druckrollenaufnahmelower pressure roller holder
2626
Innenrauminner space
2727
oberer Verstellantrieb upper adjustment drive
2828
unterer Verstellantrieblower adjustment drive
2929
DruckrollenachsePressure roller axis
3030th
OberstempelUpper stamp
3131
UnterstempelLower stamp
3232
GetriebemotorGear motor
3333
AntriebsspindelDrive spindle
3434
SpindelmutterSpindle nut
3535
horizontaler Verstellantriebhorizontal adjustment drive
3636
BefestigungsflanschMounting flange
3737
ZugankerTie rod
3838
HalsansatzNeckline
3939
Keilwedge
4040
AnschlagringStop ring
4141
KalottenstückDome piece
4242
SchraubspindelScrew spindle
4343
SpindelkopfSpindle head
4444
DruckfederCompression spring
4545
Spitzetop
4646
RingsegmentRing segment
4747
Bolzenbolt
4848
Trennwandpartition wall
4949
Wandwall
5050
KopfstückHeadpiece
5151
MultifunktionssäuleMultifunctional column

Claims (5)

Rundlaufpresse, insbesondere zur Herstellung von Tabletten, mit einem Gestell, einem Rotor mit Antrieb, mindestens einer Druckrolleneinheit und einem Gehäuse,
dadurch gekennzeichnet,
daß eine den Rotor (2) mit Antrieb und die Druckrolleneinheit (3) aufnehmende massive Grundplatte (1) mittels elastischer Lager (7) vom Grundgestell (6) aufgenommen ist, wobei die Steifigkeit der elastischen Lager (7) und die Masse der Baueinheit aus Rotor (2) mit Antrieb und der mindestens einen Druckrolleneinheit (3) so aufeinander abgestimmt sind, daß die Eigenfrequenz dieses Schwingungssystemens in allen sechs möglichen Freiheitsgraden kleiner als die bei niedrigster Drehzahl auftretende tiefste Stempeleingriffsfrequenz als Erregerfrequenz ist.Rotary press, in particular for the production of tablets, with a frame, a rotor with drive, at least one pressure roller unit and a housing,
characterized by
that a solid base plate (1) accommodating the rotor (2) with drive and the pressure roller unit (3) is received by the base frame (6) by means of elastic bearings (7), the rigidity of the elastic bearings (7) and the mass of the structural unit The rotor (2) with the drive and the at least one pressure roller unit (3) are coordinated with one another in such a way that the natural frequency of this vibration system is lower in all six possible degrees of freedom than the lowest stamp engagement frequency occurring at the lowest speed as the excitation frequency. Rundlaufpresse nach Anspruch 1, dadurch gekennzeichnet, daß das den Rotor (2) mit Antrieb und die Druckrolleneinheit (3) aufnehmende Gehäuse (8) am Grundgestell (6) gelagert ist. Rotary press according to claim 1, characterized in that the rotor (2) with drive and Pressure roller unit (3) housing (8) on Base frame (6) is mounted. Rundlaufpresse nach Anspruch 1, dadurch gekennzeichnet, daß die elastischen Lager (7) als Schwingmetall ausgebildet sind.Rotary press according to claim 1, characterized in that the elastic bearing (7) as Vibrating metal are formed. Rundlaufpresse nach Anspruch 1, dadurch gekennzeichnet, daß das Gehäuse (8) mittels einer vertikalen Trennwand (48) in einen im wesentlichen den Rotor (2) und die Druckrolleneinheit (3) umfassenden Reinraumbereich und einen innerhalb des Grundgestells (6) und einer Multifunktionssäule (51) befindlichen Versorgungsbereich unterteilt ist, der die wartungsrelevanten Antriebs- und Versorgungskomponenten wie Antriebsmotor (4) und Zahnriementrieb (13; 16,17,18) enthält und von außen zugänglich ist.Rotary press according to claim 1, characterized in that the housing (8) by means of a vertical partition (48) into a substantially comprising the rotor (2) and the pressure roller unit (3) Clean room area and one inside the Base frame (6) and a multifunction column (51) located supply area divided which is the maintenance-relevant drive and Supply components such as the drive motor (4) and Timing belt drive (13; 16,17,18) contains and from is accessible from the outside. Rundlaufpresse nach Anspruch 4, dadurch gekennzeichnet, daß die Rundlaufpresse in einem Gebäuderaum mit besonderen Reinheitsanprüchen anordenbar ist, wobei der Versorgungdbereich mindestens teilweise durch eine Gebäuderaumöffnung in einen angrenzenden Wartungsraum des Gebäudes hineinragt.Rotary press according to claim 4, characterized in that the rotary press in a building room can be arranged with special purity requirements the supply area is at least partly through an opening in a building adjacent maintenance room of the building protrudes.
EP98250015A 1997-01-31 1998-01-19 Rotary press Expired - Lifetime EP0856395B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19705094A DE19705094C1 (en) 1997-01-31 1997-01-31 Rotary press
DE19705094 1997-01-31

Publications (3)

Publication Number Publication Date
EP0856395A2 true EP0856395A2 (en) 1998-08-05
EP0856395A3 EP0856395A3 (en) 1999-01-07
EP0856395B1 EP0856395B1 (en) 2003-09-17

Family

ID=7819864

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98250015A Expired - Lifetime EP0856395B1 (en) 1997-01-31 1998-01-19 Rotary press

Country Status (5)

Country Link
US (1) US6116889A (en)
EP (1) EP0856395B1 (en)
JP (1) JP3820021B2 (en)
DE (2) DE19705094C1 (en)
ES (1) ES2207790T3 (en)

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EP2020289A2 (en) 2007-08-03 2009-02-04 Fette GmbH Frame for a rotary tablet press
CN107160153A (en) * 2017-06-12 2017-09-15 柳州市泰坦宇翔钢圈有限公司 Pressing machine

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US6830442B2 (en) * 2001-08-09 2004-12-14 William Alvin Cecil Rotary tablet press
DE10326175B3 (en) * 2003-06-10 2005-02-10 Siemens Ag tablet press
DE102004040163C5 (en) * 2004-08-19 2009-06-18 Fette Gmbh Rotary tablet press
DE102007034359B3 (en) * 2007-07-24 2008-11-13 Fette Gmbh Plant for the production of compacts of powder material, in particular of tablets
DE102007057791B4 (en) * 2007-11-30 2010-12-16 Fette Gmbh Rotary press
US8062015B2 (en) * 2008-09-19 2011-11-22 Elizabeth-Hata International Tablet press assembly
DE102009020196A1 (en) 2009-05-07 2010-11-11 Korsch Ag Rotary press, in particular for the production of tablets
US8607607B1 (en) 2009-06-18 2013-12-17 Elizabeth-Hata International System and method for feeding wire material to a rotary press
DE102012012575B4 (en) 2012-06-13 2014-09-25 Jürgen Pagel Tooth pressure roller and profile pressure roller for a rotary press and rotary press
EP3072675A1 (en) * 2015-03-27 2016-09-28 Korsch AG Rotation press with at least one pressure roller station that can be attached to a support plate and method for fixing and releasing the pressure roller station
WO2020211032A1 (en) * 2019-04-18 2020-10-22 大连理工大学 Shaft disc-based rotor six-degrees of-freedom movement testing and decoupling method for movement parameters thereof

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
EP2020289A2 (en) 2007-08-03 2009-02-04 Fette GmbH Frame for a rotary tablet press
DE102007036658A1 (en) 2007-08-03 2009-02-05 Fette Gmbh Frame for a rotary tablet press
DE102007036658B4 (en) * 2007-08-03 2009-07-16 Fette Gmbh Frame for a rotary tablet press
EP2020289A3 (en) * 2007-08-03 2011-01-05 Fette GmbH Frame for a rotary tablet press
CN107160153A (en) * 2017-06-12 2017-09-15 柳州市泰坦宇翔钢圈有限公司 Pressing machine
CN107160153B (en) * 2017-06-12 2019-06-18 柳州市泰坦宇翔钢圈有限公司 Pressing machine

Also Published As

Publication number Publication date
DE19705094C1 (en) 1998-07-09
EP0856395B1 (en) 2003-09-17
DE59809603D1 (en) 2003-10-23
EP0856395A3 (en) 1999-01-07
JP3820021B2 (en) 2006-09-13
ES2207790T3 (en) 2004-06-01
US6116889A (en) 2000-09-12
JPH10216994A (en) 1998-08-18

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