EP1060873B1 - Tool arrangement for manufacturing annular pressed articles with a rotary press - Google Patents

Tool arrangement for manufacturing annular pressed articles with a rotary press Download PDF

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Publication number
EP1060873B1
EP1060873B1 EP00111465A EP00111465A EP1060873B1 EP 1060873 B1 EP1060873 B1 EP 1060873B1 EP 00111465 A EP00111465 A EP 00111465A EP 00111465 A EP00111465 A EP 00111465A EP 1060873 B1 EP1060873 B1 EP 1060873B1
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EP
European Patent Office
Prior art keywords
die
tool assembly
assembly according
ring
plate
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
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EP00111465A
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German (de)
French (fr)
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EP1060873A2 (en
EP1060873A3 (en
Inventor
Jürgen Hinzpeter
Ulrich Zeuschner
Christian Medicus
Christian Hoffmann
Jürgen Schikowski
Andreas Arning
Hans-Wilhelm Christiansen
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Fette GmbH
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Fette GmbH
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Publication of EP1060873A3 publication Critical patent/EP1060873A3/en
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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
    • B30B15/0082—Dust eliminating means; Mould or press ram cleaning means
    • 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
    • B30B15/06—Platens or press rams
    • B30B15/065—Press rams

Definitions

  • the invention relates to a tool assembly for manufacturing of annular compacts by means of a rotary press after the Preamble of claim 1.
  • a tool assembly of the type mentioned is known from DE 298 01 312 known.
  • the transverse pin which extends through the shaft of the Unterstempels extends therethrough, in this area a slot has, is arranged in a bore of the Matrizendones.
  • a Such tool arrangement is particularly advantageous if alternately cylindrical and annular compacts are produced.
  • the Replacing the die plate can be completely eliminated.
  • Another generic Wertmaschinean extract is From DE 3 404 108 known.
  • the invention has for its object to provide a tool assembly for Production of annular compacts by means of a rotary press to create, in which the center pen in a simple way solvable and again attachable fastened, in a reproducible position.
  • the transverse pin is in one Ring or an annular sleeve fixed, which in turn in one Guide bore for the shaft of the lower punch is arranged or forms part of the guide bore.
  • the guide hole is on one formed radial projection of the die plate, these Guide hole is not the only guide of the lower punch represents.
  • Two bracket-shaped brackets are on opposite sides of the Lower punch arranged, with a longer leg at the bottom of the ring and a shorter second leg abuts the projection overlaps.
  • a leg interconnecting the bridge is connected to the Projection via a screw connected so that it is radially from can be screwed against the outside projection.
  • retaining bracket and projection or die plate is preferably such that conical surfaces are provided in the Tighten the screw together so that the headband with its inner leg axially against the retaining ring for the cross pin is pressed.
  • the transverse pin preferably has a cross section in the form of an elongated Rectangles on, with the cross pin upright in the ring or in the center pin is arranged. This allows the cross pin to absorb high forces and is less easily bent.
  • a radial bore on arranged lower end of a recess extending below the Projection is located and in the area of the lower punch is exposed.
  • about the radial bore can enter the air from inside the die disc Recess blown to dust, which is in this area can accumulate, blow off.
  • This can be done in the form that one fixed nozzle at the level of the radial bore is arranged and either constantly or at intervals discharges compressed air. At impulsive Air delivery can be an appropriate control over the rotation of the Die plate take place.
  • the single figure shows a section through a part of a die plate a rotary press.
  • a die plate is indicated at 10, the upper punch 12th and lower punch 14.
  • the lower punch 14 is left and right of the Central axis shown in two different positions.
  • the right Position indicates the ejection of a compact, and the left position becomes taken when a filling takes place.
  • In the axially seen middle Section of the die plate 10 is arranged a series of matrices, one of which is shown at 16. It is from a separate use 18 formed in a corresponding bore of the die plate 10th is used.
  • the lower punch 14 has a shaft 20 which is in a lower Guide portion 22 is guided and by a guide portion 24th between die 16 and lower guide portion 22.
  • the shaft 20 is used as a holder for a punch insert 26, which by means of a threaded sleeve 28th can be fastened to the shaft 20.
  • the sleeve 28 is in a bore portion 30, which is located below the die neck 18.
  • a center pin 32nd arranged, which extends to the upper edge of the Matrizenansatzes 18. He used together with the annular cylindrical punch insert 26 for Production of annular tablets. At the bottom he has one Transverse bore, through which a cross pin 34 is guided. Of the Cross pin has an oblong rectangle in cross section and is edgewise through the transverse bore of the center pin 32 out. The cross pin sits in corresponding radial bores of a ring 36, in a bore 38th of the guide portion 24 is inserted. The ring 36 forms part of Guide bore for the shaft 20.
  • the shaft 20 has an axial elongated slot 40, whose axial extent is dimensioned so that in each of the two positions left and right of the figure of the transverse pin 34 and in every position in between extends freely through it.
  • the movement of the Preßstempels 14 is therefore not hindered by the cross pin.
  • the ring 36 extends slightly with the lower end face beyond the bottom of the guide portion 24.
  • the Guide section 24 may be a circumferential around the die plate 10 Be flange or consist of individual projections, each in the Area of the stamp or dies are formed.
  • the top 42 of the Projection is obliquely sloping downwards towards the outside. The lower one extends approximately horizontally.
  • a clamp 44 which has a longer leg 46 and an approximately parallel extending shorter leg 48th and a web connecting the legs 50.
  • the web 50 is by means of a bolt 52 against the outside of the projection 24 pressed.
  • the longer leg 46 engages with its free end in a groove 54 of Die plate, wherein its bottom has a conical surface 56.
  • the lower groove side can be correspondingly conically shaped.
  • the short Leg 48 is also conical on its underside and acts with the Inclined surface 42 together. If the screw 52 is tightened, the long exercises Leg 46 exerts a pressure on the ring 36, causing it to go up is pressed against the stop in the bore 38.
  • a second clamping bracket is provided, which is similar to the clamp 44.
  • the two clamps are on each other arranged opposite sides of the shaft 10.
  • the ring 36 has on its underside cutouts, in which the long Leg 54 of both clamps 44 engage.
  • the ring 36 is characterized in secured its rotational position. The position assurance is required so that the Cross pin 34 is guided freely in the slot 40.
  • the recess 58 bounding wall 62 of the die plate is a radial bore 64 formed radially to the lower punch 14th is aligned. It is understood that for each sub-stamp one appropriate hole can be provided.
  • the a blowing pressure source 68 is supplied with compressed air, wherein the Control via a control device 70 takes place.
  • the control device can detect the rotation of the die plate 10 and one each Trigger pressure surge when a bore 64 in front of the nozzle 66th located. With the help of compressed air can dust or other material effectively blown out.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Automatic Assembly (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Press Drives And Press Lines (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The rotary stamping machine has a matrix plate (10) with a rotary drive and matrix holes to fix in matrix inserts revolving with upper punches and bottom rams that have an open drilled hole towards an operating end. A center pin is fixed axially by a cross pin (34) stretched through an axial slot in a bottom ram (14) and fastened in a ring (36) that forms part of a guide hole for the bottom ram.

Description

Die Erfindung bezieht sich auf eine Werkzeuganordnung zur Herstellung von ringförmigen Preßlingen mit Hilfe einer Rundläuferpresse nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a tool assembly for manufacturing of annular compacts by means of a rotary press after the Preamble of claim 1.

Eine Werkzeuganordnung der eingangs genannten Art ist aus DE 298 01 312 bekannt geworden. Der Querstift, der sich durch den Schaft des Unterstempels hindurcherstreckt, der in diesem Bereich einen Schlitz aufweist, ist in einer Bohrung des Matrizeneinsatzes angeordnet. Eine derartige Werkzeuganordnung ist insbesondere dann von Vorteil, wenn alternierend zylindrische und ringförmige Preßlinge produziert werden. Das Auswechseln der Matrizenscheibe kann vollständig entfallen. Eine weitere gattungsgemäße Wertzeuganordnung ist aus DE 3 404 108 bekannt.A tool assembly of the type mentioned is known from DE 298 01 312 known. The transverse pin, which extends through the shaft of the Unterstempels extends therethrough, in this area a slot has, is arranged in a bore of the Matrizeneinsatzes. A Such tool arrangement is particularly advantageous if alternately cylindrical and annular compacts are produced. The Replacing the die plate can be completely eliminated. Another generic Wertzeuganordnung is From DE 3 404 108 known.

Aus AT 257 844 ist eine Werkzeuganordnung bekannt geworden, bei der ein Querelement, mit dem der Mittelstift verbunden ist, von einer Feder gegen einen matrizenfesten Absatz angedrückt wird. Der Ansatz erstreckt sich durch einen Querschlitz des Unterstempels. Im Gegensatz zur oben beschriebenen Werkzeuganordnung ist daher der Mittelstift nicht relativ zur Matrizenscheibe stationär gehalten.From AT 257 844 a tool assembly has become known in which a Cross member to which the center pin is connected, by a spring against a die-fixed paragraph is pressed. The approach extends through a transverse slot of the lower punch. Unlike the above Tool assembly described is therefore not the center pin relative to Die plate held stationary.

Der Erfindung liegt die Aufgabe zugrunde, eine Werkzeuganordnung zur Herstellung von ringförmigen Preßlingen mit Hilfe einer Rundläuferpresse zu schaffen, in der der Mittelstift auf einfache Weise lösbar und wieder anbringbar befestigbar ist, und zwar in reproduzierbarer Lage.The invention has for its object to provide a tool assembly for Production of annular compacts by means of a rotary press to create, in which the center pen in a simple way solvable and again attachable fastened, in a reproducible position.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This object is solved by the features of patent claim 1.

Bei der erfindungsgemäßen Werkzeuganordnung ist der Querstift in einem Ring oder einer ringförmigen Hülse festgelegt, der seinerseits in einer Führungsbohrung für den Schaft des Unterstempels angeordnet ist bzw. einen Teil der Führungsbohrung bildet. Die Führungsbohrung ist an einem radialen Vorsprung der Matrizenscheibe geformt, wobei diese Führungsbohrung nicht die einzige Führung des Unterstempels darstellt. Zwei klammerförmige Haltebügel sind auf gegenüberliegenden Seiten des Unterstempels angeordnet, wobei ein längerer Schenkel an der Unterseite des Rings anliegt und ein kürzerer zweiter Schenkel den Vorsprung übergreift. Ein die Schenkel miteinander verbindender Steg ist mit dem Vorsprung über eine Schraubverbindung so verbunden, daß er radial von außen gegen den Vorsprung angeschraubt werden kann. Geschieht dies, wird durch eine entsprechende Ausbildung von Vorsprung und Schenkel des Haltebügels von dem längeren Schenkel ein axialer Druck auf den Ring in Richtung Oberstempel bzw. Matrize ausgeübt, wodurch der Ring sicher in der entsprechenden Ausnehmung in der Bohrung des Vorsprungs gehalten ist. Damit die Wirkung erreicht wird, ist erforderlich, daß der Ring zumindest minimal an der Unterseite des Vorsprungs aus der Führungsbohrung heraussteht.In the tool arrangement according to the invention, the transverse pin is in one Ring or an annular sleeve fixed, which in turn in one Guide bore for the shaft of the lower punch is arranged or forms part of the guide bore. The guide hole is on one formed radial projection of the die plate, these Guide hole is not the only guide of the lower punch represents. Two bracket-shaped brackets are on opposite sides of the Lower punch arranged, with a longer leg at the bottom of the ring and a shorter second leg abuts the projection overlaps. A leg interconnecting the bridge is connected to the Projection via a screw connected so that it is radially from can be screwed against the outside projection. If this happens, will by an appropriate training of the projection and legs of the Holding bracket of the longer leg an axial pressure on the ring in In the direction of the upper punch or die, the ring is securely in place held the corresponding recess in the bore of the projection is. For the effect to be achieved, it is necessary that the ring at least minimally at the bottom of the projection from the Guide hole protrudes.

Mit Hilfe der beschriebenen Konstruktion läßt sich durch einfaches und zulängliches Lösen der Schraubverbindung der Mittelstift lösen, so daß auf einfache Weise ein anderer Unterstempel mit Mittelstift eingebaut werden kann.With the help of the construction described can be by simple and Loosen adequately loosen the screw the center pin, so that on easy way to install another lower punch with center pin can.

Das Zusammenwirken von Haltebügel und Vorsprung bzw. Matrizenscheibe ist vorzugsweise derart, daß konische Flächen vorgesehen sind, die beim Anziehen der Schraubverbindung miteinander so wirken, daß der Haltebügel mit seinem inneren Schenkel axial gegen den Haltering für den Querstift gepreßt wird. The interaction of retaining bracket and projection or die plate is preferably such that conical surfaces are provided in the Tighten the screw together so that the headband with its inner leg axially against the retaining ring for the cross pin is pressed.

Der Querstift weist vorzugsweise einen Querschnitt in Form eines länglichen Rechtecks auf, wobei der Querstift hochkant im Ring bzw. im Mittelstift angeordnet ist. Dadurch kann der Querstift hohe Kräfte aufnehmen und wird weniger leicht durchgebogen.The transverse pin preferably has a cross section in the form of an elongated Rectangles on, with the cross pin upright in the ring or in the center pin is arranged. This allows the cross pin to absorb high forces and is less easily bent.

Bei einer anderen Ausgestaltung der Erfindung ist eine radiale Bohrung am unteren Ende einer Ausnehmung angeordnet, die sich unterhalb des Vorsprungs befindet und in deren Bereich der Unterstempel frei liegt. Über die radiale Bohrung kann vom Inneren der Matrizenscheibe Luft in die Ausnehmung geblasen werden, um Staub, der sich in diesem Bereich ansammeln kann, abzublasen. Dies kann in der Form geschehen, daß eine feststehende Düse in Höhe der radialen Bohrung angeordnet ist und die entweder ständig oder in Abständen Druckluft abgibt. Bei impulsartiger Luftabgabe kann eine entsprechende Steuerung über die Drehung der Matrizenscheibe erfolgen.In another embodiment of the invention is a radial bore on arranged lower end of a recess extending below the Projection is located and in the area of the lower punch is exposed. about the radial bore can enter the air from inside the die disc Recess blown to dust, which is in this area can accumulate, blow off. This can be done in the form that one fixed nozzle at the level of the radial bore is arranged and either constantly or at intervals discharges compressed air. At impulsive Air delivery can be an appropriate control over the rotation of the Die plate take place.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand einer Zeichnung erläutert.An embodiment of the invention will be described below with reference to a Drawing explained.

Die einzige Figur zeigt einen Schnitt durch einen Teil einer Matrizenscheibe einer Rundläuferpresse. The single figure shows a section through a part of a die plate a rotary press.

In der Figur ist eine Matrizenscheibe bei 10 angedeutet, die Oberstempel 12 aufweist und Unterstempel 14. Der Unterstempel 14 ist links und rechts der Mittelachse in zwei unterschiedlichen Positionen dargestellt. Die rechte Position deutet das Ausstoßen eines Preßlings an, und die linke Position wird eingenommen, wenn eine Befüllung erfolgt. Im axial gesehen mittleren Abschnitt der Matrizenscheibe 10 ist eine Reihe von Matrizen angeordnet, von denen eine bei 16 dargestellt ist. Sie wird von einem separaten Einsatz 18 gebildet, der in eine entsprechende Bohrung der Matrizenscheibe 10 eingesetzt ist.In the figure, a die plate is indicated at 10, the upper punch 12th and lower punch 14. The lower punch 14 is left and right of the Central axis shown in two different positions. The right Position indicates the ejection of a compact, and the left position becomes taken when a filling takes place. In the axially seen middle Section of the die plate 10 is arranged a series of matrices, one of which is shown at 16. It is from a separate use 18 formed in a corresponding bore of the die plate 10th is used.

Der Unterstempel 14 weist einen Schaft 20 auf, der in einem unteren Führungsabschnitt 22 geführt ist sowie von einem Führungsabschnitt 24 zwischen Matrize 16 und unterem Führungsabschnitt 22. Der Schaft 20 dient als Halter für einen Stempeleinsatz 26, der mit Hilfe einer Gewindehülse 28 am Schaft 20 befestigbar ist. Die Hülse 28 wird in einem Bohrungsabschnitt 30 geführt, der sich unterhalb des Matrizenansatzes 18 befindet.The lower punch 14 has a shaft 20 which is in a lower Guide portion 22 is guided and by a guide portion 24th between die 16 and lower guide portion 22. The shaft 20 is used as a holder for a punch insert 26, which by means of a threaded sleeve 28th can be fastened to the shaft 20. The sleeve 28 is in a bore portion 30, which is located below the die neck 18.

In einer axialen Bohrung des Unterstempels 14 ist ein Mittelstift 32 angeordnet, der sich bis zur Oberkante des Matrizenansatzes 18 erstreckt. Er dient zusammen mit dem ringzylindrischen Stempeleinsatz 26 zur Herstellung von ringförmigen Tabletten. Am unteren Ende weist er eine Querdurchbohrung auf, durch die hindurch ein Querstift 34 geführt ist. Der Querstift hat im Querschnitt ein längliches Rechteck und ist hochkant durch die Querbohrung des Mittelstiftes 32 geführt. Der Querstift sitzt in entsprechenden radialen Bohrungen eines Ringes 36, der in eine Bohrung 38 des Führungsabschnitts 24 eingesetzt ist. Der Ring 36 bildet einen Teil der Führungsbohrung für den Schaft 20. Der Schaft 20 hat einen axialen länglichen Schlitz 40, dessen axiale Erstreckung so bemessen ist, daß in jeder der beiden Positionen links und rechts der Figur der Querstift 34 und in jeder Position dazwischen sich frei hindurcherstreckt. Die Bewegung des Preßstempels 14 wird durch den Querstift mithin nicht gehindert.In an axial bore of the lower punch 14 is a center pin 32nd arranged, which extends to the upper edge of the Matrizenansatzes 18. He used together with the annular cylindrical punch insert 26 for Production of annular tablets. At the bottom he has one Transverse bore, through which a cross pin 34 is guided. Of the Cross pin has an oblong rectangle in cross section and is edgewise through the transverse bore of the center pin 32 out. The cross pin sits in corresponding radial bores of a ring 36, in a bore 38th of the guide portion 24 is inserted. The ring 36 forms part of Guide bore for the shaft 20. The shaft 20 has an axial elongated slot 40, whose axial extent is dimensioned so that in each of the two positions left and right of the figure of the transverse pin 34 and in every position in between extends freely through it. The movement of the Preßstempels 14 is therefore not hindered by the cross pin.

Wie erkennbar, erstreckt sich der Ring 36 mit der unteren Stirnseite etwas über die Unterseite des Führungsabschnitts 24 hinaus. Der Führungsabschnitt 24 kann ein rund um die Matrizenscheibe 10 umlaufender Flansch sein oder aus einzelnen Vorsprüngen bestehen, die jeweils im Bereich der Stempel bzw. Matrizen geformt sind. Die Oberseite 42 des Vorsprungs ist nach außen hin schräg nach unten abfallend. Die untere erstreckt sich annähernd horizontal. As can be seen, the ring 36 extends slightly with the lower end face beyond the bottom of the guide portion 24. Of the Guide section 24 may be a circumferential around the die plate 10 Be flange or consist of individual projections, each in the Area of the stamp or dies are formed. The top 42 of the Projection is obliquely sloping downwards towards the outside. The lower one extends approximately horizontally.

In der Figur erkennt man einen Klemmbügel 44, der einen längeren Schenkel 46 und einen annähernd dazu parallel verlaufenden kürzeren Schenkel 48 aufweist sowie einen die Schenkel verbindenden Steg 50. Der Steg 50 wird mit Hilfe eines Schraubenbolzens 52 gegen die Außenseite des Vorsprungs 24 angepreßt.In the figure can be seen a clamp 44, which has a longer leg 46 and an approximately parallel extending shorter leg 48th and a web connecting the legs 50. The web 50 is by means of a bolt 52 against the outside of the projection 24 pressed.

Der längere Schenkel 46 greift mit seinem freien Ende in eine Nut 54 der Matrizenscheibe ein, wobei seine Unterseite eine konische Fläche 56 hat. Die untere Nutseite kann entsprechend konisch geformt sein. Der kurze Schenkel 48 ist an seiner Unterseite ebenfalls konisch und wirkt mit der Schrägfläche 42 zusammen. Wird die Schraube 52 angezogen, übt der lange Schenkel 46 einen Druck auf den Ring 36 aus, wodurch dieser nach oben gegen den Anschlag in der Bohrung 38 angepreßt wird.The longer leg 46 engages with its free end in a groove 54 of Die plate, wherein its bottom has a conical surface 56. The lower groove side can be correspondingly conically shaped. The short Leg 48 is also conical on its underside and acts with the Inclined surface 42 together. If the screw 52 is tightened, the long exercises Leg 46 exerts a pressure on the ring 36, causing it to go up is pressed against the stop in the bore 38.

Bei der beschriebenen Anordnung ist ein zweiter Klemmbügel vorgesehen, der dem Klemmbügel 44 gleicht. Die beiden Klemmbügel sind auf einander gegenüberliegenden Seiten des Schaftes 10 angeordnet.In the described arrangement, a second clamping bracket is provided, which is similar to the clamp 44. The two clamps are on each other arranged opposite sides of the shaft 10.

Der Ring 36 hat an seiner Unterseite Ausfräsungen, in welche die langen Schenkel 54 beider Klemmbügel 44 eingreifen. Der Ring 36 ist dadurch in seiner Drehlage gesichert. Die Lagesicherung ist erforderlich, damit der Querstift 34 frei im Schlitz 40 geführt ist.The ring 36 has on its underside cutouts, in which the long Leg 54 of both clamps 44 engage. The ring 36 is characterized in secured its rotational position. The position assurance is required so that the Cross pin 34 is guided freely in the slot 40.

Zwischen dem Vorsprung 24 und dem Führungsabschnitt 22 ist eine größere Ausnehmung 58 geformt, in der der Schaft 20 sich frei bewegt. Zwischen dem Schaft 20 und dem Führungsabschnitt 22 ist eine Manschettendichtung 60 angebracht, deren oberes Ende sich mit der Bewegung des Schaftes 20 mitbewegt, wie aus der linken Darstellung in der Figur deutlich wird. Die Dichtmanschette 60 verhindert das Eindringen von Staub und sonstigen Partikeln in die Führungsbohrung.Between the projection 24 and the guide portion 22 is a larger one Recess 58 formed in which the shaft 20 moves freely. Between the stem 20 and the guide portion 22 is a cup seal 60 mounted whose upper end with the movement of the shaft 20th moved, as is clear from the left representation in the figure. The Sealing collar 60 prevents the ingress of dust and other Particles in the pilot hole.

In der die Ausnehmung 58 begrenzenden Wand 62 der Matrizenscheibe ist eine radiale Bohrung 64 geformt, die radial zu dem Unterstempel 14 ausgerichtet ist. Es versteht sich, daß zu jedem Unterstempel eine entsprechende Bohrung vorgesehen werden kann. In der gleichen Höhe wie die radialen Bohrungen 64 ist eine Blasdüse 66 stationär angeordnet, die aus einer Blasdruckquelle 68 mit Druckluft versorgt wird, wobei die Ansteuerung über eine Steuervorrichtung 70 erfolgt. Die Steuervorrichtung kann die Drehung der Matrizenscheibe 10 erfassen und jeweils einen Druckstoß veranlassen, wenn eine Bohrung 64 sich vor der Düse 66 befindet. Mit Hilfe der Druckluft kann Staub oder sonstiges Material wirksam ausgeblasen werden.In which the recess 58 bounding wall 62 of the die plate is a radial bore 64 formed radially to the lower punch 14th is aligned. It is understood that for each sub-stamp one appropriate hole can be provided. At the same height as the radial bores 64 is a blowing nozzle 66 stationarily arranged, the a blowing pressure source 68 is supplied with compressed air, wherein the Control via a control device 70 takes place. The control device can detect the rotation of the die plate 10 and one each Trigger pressure surge when a bore 64 in front of the nozzle 66th located. With the help of compressed air can dust or other material effectively blown out.

Der Betrieb der Rundläuferpresse, die durch die Darstellung in der Figur angedeutet ist, wird im einzelnen nicht beschrieben, weil er an sich bekannt ist. Ober- und Unterstempel 12, 14 werden in bekannter Weise durch Steuerabschnitte und durch Druckrollen betätigt, damit während einer ganzen oder einer halben Drehung die erforderlichen Bewegungen ausgeführt werden.The operation of the rotary press, by the illustration in the figure is not described in detail, because he is known is. Upper and lower punches 12, 14 are in a known manner by Control sections and pressed by pressure rollers, so that during a all or half a turn the necessary movements be executed.

Claims (9)

  1. A tool arrangement for the manufacture of ring-shaped compacts using a rotary compression press wherein the rotary compression press has a rotatably driven die-plate having die holes in which die inserts are mounted, and upper and lower rams aligned towards the die inserts and rotating together therewith, which are moved by control portions towards each other or away from each other and wherein the bottom rams have a coaxial bore open to the operating end in which a central pin (32) is disposed which is axially located relative to the die-plate by a transverse pin wherein the transverse pin extends through an axial slot of the lower ram, characterized in that the transverse pin (34) is located in a ring (36) which forms part of a guide bore (38) for the lower ram (14) which is formed in a radially outwardly facing projection (24) of the die-plate (10), two bracket-shaped retaining clips (44) are disposed on opposed sides of the lower ram (14) a longer leg (46) of which abuts against the underside of the ring (36) and a short, second leg (48) of which is bent over the projection (24), a web (50) interconnecting the legs (44, 48) is adapted to be connected to the projection (24) via a bolted joint (52), the retaining clips (44) and the die-plate (10) being formed in such a way that the long leg (46), while the bolted joint (52) is being tightened, is axially pressed against the ring (36) towards the die (16).
  2. The tool assembly according to claim 1, characterized in that a conically shaped first surface is formed in a groove (54) of the die-plate (10) which is engaged by the long leg (46).
  3. The tool assembly according to claim 1 or 2, characterized in that an oblique upper surface (42) of the projection (24) interacts with the short leg (48).
  4. The tool assembly according to any of claims 1 to 3, characterized in that the portion of the ring (36) protruding downwards beyond the projection (24) has recesses which are engaged by the long legs (46).
  5. The tool assembly according to any of claims 1 to 4, characterized in that the transverse pin (34) preferably is of a cross-section having the shape of an elongated rectangle and is disposed edgewise in the ring (36) and in the slot (40) of the central pin (32).
  6. The tool assembly according to any of claims 1 to 5, characterized in that the die-plate (10) is provided, below the projection (24), with a radial recess (58) in which the lower ram (14) is exposed and which is defined downwards by a further guide portion (22) for the lower ram (14), and the die-plate (10) has a radial bore (64) for the passage of blown air.
  7. The tool assembly according to claim 6, characterized in that the radial bore (64) is disposed at the lower end of the recess (58) of the die-plate (10).
  8. The tool assembly according to claim 6 or 7, characterized in that a lip-type packing (60) is disposed between the lower guide portion (22) and the lower ram (14).
  9. The tool assembly according to any of claims 1 to 8, characterized in that the lower rams (14) comprise a ram holder (20) and a ram insert (26) and the axial slot (40) is provided in the ram holder (20).
EP00111465A 1999-06-14 2000-05-27 Tool arrangement for manufacturing annular pressed articles with a rotary press Expired - Lifetime EP1060873B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19926934A DE19926934C2 (en) 1999-06-14 1999-06-14 Tool arrangement for the production of ring-shaped compacts with the help of a rotary press
DE19926934 1999-06-14

Publications (3)

Publication Number Publication Date
EP1060873A2 EP1060873A2 (en) 2000-12-20
EP1060873A3 EP1060873A3 (en) 2001-01-10
EP1060873B1 true EP1060873B1 (en) 2005-06-29

Family

ID=7911094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00111465A Expired - Lifetime EP1060873B1 (en) 1999-06-14 2000-05-27 Tool arrangement for manufacturing annular pressed articles with a rotary press

Country Status (5)

Country Link
US (1) US6361306B1 (en)
EP (1) EP1060873B1 (en)
JP (1) JP3885164B2 (en)
AT (1) ATE298663T1 (en)
DE (2) DE19926934C2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10024340C2 (en) * 2000-05-11 2002-09-12 Fette Wilhelm Gmbh Stamp for rotary press
US20040078422A1 (en) * 2002-10-17 2004-04-22 Toomey Christopher Newell Detecting and blocking spoofed Web login pages
EP3521015B1 (en) * 2003-07-11 2023-09-06 Pilkington Group Limited Solar control glazing
US20070087073A1 (en) * 2005-08-23 2007-04-19 Chowdhury Tahseen A Tabletting press
US9267504B2 (en) 2010-08-30 2016-02-23 Hicor Technologies, Inc. Compressor with liquid injection cooling
EP2612035A2 (en) 2010-08-30 2013-07-10 Oscomp Systems Inc. Compressor with liquid injection cooling
US20120093961A1 (en) * 2010-10-19 2012-04-19 Cheng Uei Precision Industry Co., Ltd. Mould having movable mold insert
DE102011101289B4 (en) * 2011-05-10 2013-11-14 Fette Compacting Gmbh Stamping arrangement for a press and press as well as rotary presses
FR3021666B1 (en) 2014-05-28 2017-12-08 Eurotab CAVITY MULTILAYER TABLET, DEVICE AND METHOD FOR COMPACTING SUCH TABLET

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347438C (en) * 1922-01-20 Fritz Kilian Lower punch for rotating compression molding
AT257844B (en) * 1965-02-06 1967-10-25 Vyzk Ustav Mech Compression tool for rotor tablet machines
DE2604648C2 (en) * 1976-02-04 1980-10-09 Emil Korsch Spezialfabrik Fuer Komprimiermaschinen, 1000 Berlin Rotary press
DD128841A3 (en) * 1976-02-26 1977-12-14 Bernd Froherz METHOD AND DEVICE FOR DRY PRESSING OF POWDERFUL MATERIALS
US4352648A (en) * 1980-12-22 1982-10-05 Toolmakers, Incorporated Powdered metal press and tooling therefor
DE3404108A1 (en) * 1984-02-07 1985-08-14 Kilian & Co GmbH, 5000 Köln TABLET PRESS
IT1264287B1 (en) * 1993-12-10 1996-09-23 Ima Spa METHOD FOR COMPRESSION OF POWDERED OR GRANULAR MATERIAL.
IT233921Y1 (en) * 1994-01-31 2000-02-16 Ima Spa PERFECTED MOLDING DEVICE FOR COMPRESSING MACHINES FOR THE MAKING OF TABLETS.
DE29801312U1 (en) * 1998-01-28 1998-03-19 Fette Wilhelm Gmbh Tool arrangement for the production of ring-shaped compacts with the help of a rotary press

Also Published As

Publication number Publication date
DE19926934C2 (en) 2002-08-01
JP3885164B2 (en) 2007-02-21
US6361306B1 (en) 2002-03-26
JP2001047293A (en) 2001-02-20
DE19926934A1 (en) 2001-01-04
ATE298663T1 (en) 2005-07-15
EP1060873A2 (en) 2000-12-20
EP1060873A3 (en) 2001-01-10
DE50010621D1 (en) 2005-08-04

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