EP2103423A1 - Powder moulding press for producing a pressed product from metal powder - Google Patents
Powder moulding press for producing a pressed product from metal powder Download PDFInfo
- Publication number
- EP2103423A1 EP2103423A1 EP08152858A EP08152858A EP2103423A1 EP 2103423 A1 EP2103423 A1 EP 2103423A1 EP 08152858 A EP08152858 A EP 08152858A EP 08152858 A EP08152858 A EP 08152858A EP 2103423 A1 EP2103423 A1 EP 2103423A1
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- European Patent Office
- Prior art keywords
- wedge
- transverse
- pressing
- plate
- transverse pressing
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/40—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by wedge means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- 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
- B30B11/007—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a plurality of pressing members working in different directions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B7/00—Presses characterised by a particular arrangement of the pressing members
- B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
- B22F2003/031—Press-moulding apparatus therefor with punches moving in different directions in different planes
Definitions
- the present invention relates to a powder press for producing a metal powder compact having an upper punch assembly, a lower punch assembly and a die assembly forming the mold cavity into which the metal powder is insertable and thereafter the upper punch assembly and the lower punch assembly for forming the compact Pressable against each other in the pressing direction, controlled by a control unit.
- Such powder presses are known in many ways, they are used to produce powder compacts, which are then sintered, whereby a variety of workpieces can be produced, which can meet the most diverse requirements for these workpieces in the most optimal manner, for example, indexable inserts are made in this way, the very be exposed to high loads.
- pressing is primarily in a pressing direction, which is usually vertical.
- transverse mandrels are introduced through the Matrizenwandung transversely to the pressing direction in the mold cavity before the pressing process, which usually come to a punch of the lower punch assembly to the plant.
- These transverse mandrels are moved via direct linear drives, for example hydraulically, which is possible because these transverse mandrels do not have to absorb any pressing forces in their direction of movement.
- the object of the present invention is to design the powder press so that the compact can be deformed during the pressing process with Querpressstkovn.
- the solution of this object is achieved in that the lower punch assembly is equipped with a plate on which the die assembly is mounted, and on which plate transverse pressing devices can be fastened, each with a Querpressstkov are equipped which is linearly driven by a drive and can be pressed through an opening in the die substantially transversely to the pressing direction in Querpressides into the mold cavity into a pressing position and retractable from this.
- the drive of each transverse pressing device comprises a linear drive with a fixed part attached to the frame of the transverse pressing device and a part which can be displaced linearly relative to the fixed part, which linearly displaceable part is connected to a first wedge whose wedge surface acts on the wedge surface of a second wedge which is displaceable substantially perpendicular to the first wedge in the transverse pressing direction.
- first wedge and the second wedge are displaceable along linear guideways attached to the frame of the transverse pressing device, whereby the occurring forces acting on the transverse ram are largely absorbed by the frame.
- a further advantageous embodiment of the invention is that the pressing position of the cross press ram can be fixed by an adjustable stop, whereby the pressing position of the cross press ram is always reached very accurately regardless of further influences.
- the stop is formed of a transverse to the direction of displacement of the first wedge adjustable third wedge, which is guided in the frame and whose wedge surface cooperates with a further wedge surface of the first wedge.
- the position of the cross press ram with respect to the die assembly via measuring means can be detected and transmitted to the control unit, whereby the position of the transverse ram is monitored and the adjustment of the pressing position of the cross press ram over the stop is easily possible.
- a further advantageous embodiment of the invention is that each cross-pressing punch is held via a coupling device in the respective transverse pressing device.
- the transverse pressing dies can be exchanged in a simple manner, while the transverse pressing device can be used for virtually all compacts to be pressed having different shapes.
- each transverse pressing device is equipped with a protruding bolt and that the plate is provided with a plurality of holes, which bolt protrudes in the mounted on the plate state of Querpressvorides in one of the holes, and that a plurality Querpressvoruzeen on the Plate can be fastened in different position.
- the transverse pressing devices can be used in predetermined positions for specific die arrangements without having to carry out large orientations of the transverse pressing devices.
- the holes in the plate corresponding threaded holes are assigned, in which clamping screws are screwed, which are held in corresponding recesses in the context of each transverse pressing device.
- the transverse pressing devices in the corresponding positions on the plate can be fastened in a simple manner.
- the recesses for receiving the clamping screws in the transverse pressing device are slot-shaped, so that the patch on the plate transverse pressing device each slightly pivoted about the bolt and thus can be aligned with respect to the die, after which the cross pressing device on the plate on the clamping screws can be fixed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Press Drives And Press Lines (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Punching Or Piercing (AREA)
Abstract
Description
Die vorliegende Erfindung bezieht sich auf eine Pulverpresse zur Herstellung eines Presslings aus Metallpulver, mit einer oberen Stempelanordnung, einer unteren Stempelanordnung und einer Matrizenanordnung, welche den Formhohlraum bildet, in welchen das Metallpulver einfüllbar und danach zur Formung des Presslings die obere Stempelanordnung und die untere Stempelanordnung in Pressrichtung gegeneinander pressbar sind, gesteuert durch eine Steuereinheit.The present invention relates to a powder press for producing a metal powder compact having an upper punch assembly, a lower punch assembly and a die assembly forming the mold cavity into which the metal powder is insertable and thereafter the upper punch assembly and the lower punch assembly for forming the compact Pressable against each other in the pressing direction, controlled by a control unit.
Derartige Pulverpressen sind in vielfältiger Weise bekannt, sie dienen zur Herstellung von Pulverpresslingen, die danach gesintert werden, wodurch unterschiedlichste Werkstücke hergestellt werden können, die die verschiedensten Anforderungen an diese Werkstücke in optimalster Weise erfüllen können, beispielsweise werden Wendeschneidplatten auf diese Art hergestellt, die sehr hohen Belastungen ausgesetzt werden. Beim Pulverpressen von Hartmetall oder anderen Materialien wird vornehmlich in einer Pressrichtung gepresst, die üblicherweise vertikal ausgerichtet ist.Such powder presses are known in many ways, they are used to produce powder compacts, which are then sintered, whereby a variety of workpieces can be produced, which can meet the most diverse requirements for these workpieces in the most optimal manner, for example, indexable inserts are made in this way, the very be exposed to high loads. In powder pressing of cemented carbide or other materials, pressing is primarily in a pressing direction, which is usually vertical.
Es sind auch Pulverpressen bekannt, bei welchen vor dem Pressvorgang Querdorne durch die Matrizenwandung quer zur Pressrichtung in den Formhohlraum eingeführt werden, die üblicherweise an einem Stempel der unteren Stempelanordnung zur Anlage kommen. Diese Querdorne werden über direkte Linearantriebe, beispielsweise hydraulisch, verschoben, was möglich ist, weil diese Querdorne in ihrer Bewegungsrichtung keine Presskräfte aufnehmen müssen.There are also powder presses are known in which transverse mandrels are introduced through the Matrizenwandung transversely to the pressing direction in the mold cavity before the pressing process, which usually come to a punch of the lower punch assembly to the plant. These transverse mandrels are moved via direct linear drives, for example hydraulically, which is possible because these transverse mandrels do not have to absorb any pressing forces in their direction of movement.
Die Aufgabe der vorliegenden Erfindung besteht darin, die Pulverpresse so auszugestalten, dass der Pressling auch während des Pressvorgangs mit Querpressstempeln verformt werden kann.The object of the present invention is to design the powder press so that the compact can be deformed during the pressing process with Querpressstempeln.
Erfindungsgemäss erfolgt die Lösung dieser Aufgabe dadurch, dass die untere Stempelanordnung mit einer Platte ausgestattet ist, auf welcher die Matrizenanordnung angebracht ist, und auf welcher Platte Querpressvorrichtungen befestigbar sind, welche jeweils mit einem Querpressstempel ausgestattet sind, welcher über einen Antrieb linear antreibbar ist und durch eine Öffnung in der Matrize im wesentlichen quer zur Pressrichtung in Querpressrichtung in den Formhohlraum hinein in eine Pressposition drückbar und aus dieser zurückziehbar ist.According to the invention, the solution of this object is achieved in that the lower punch assembly is equipped with a plate on which the die assembly is mounted, and on which plate transverse pressing devices can be fastened, each with a Querpressstempel are equipped which is linearly driven by a drive and can be pressed through an opening in the die substantially transversely to the pressing direction in Querpressrichtung into the mold cavity into a pressing position and retractable from this.
Mit dieser Ausgestaltung der Erfindung ist es möglich, in einem Pressling aus Metallpulver Querbohrungen zu erzeugen, es können aber auch seitliche Vertiefungen in diesem Pressling erzeugt werden, die nicht durchgehend sind, so dass die Querpressvorrichtung die während des Pressens auftretenden Kräfte in Querpressrichtung aufnehmen muss. Die Durchgänge für die Querpressstempel können durch Ausnehmungen erhalten werden, die in der ringförmigen Matrizenform angebracht sind, der innere Teil der Matrizenanordnung kann aber auch vollständig geteilt oder teilweise geteilt sein, wobei diese Matrizenteile voneinander beabstandet sind, um die Ausnehmungen für die Durchgänge der Querpressstempel zu bilden, wobei diese in eine ringförmige Matrizenhalterung eingesetzt sein können. Dadurch können am Pressling seitliche Vertiefungen und/oder Erhöhungen angebracht werden.With this embodiment of the invention, it is possible to produce transverse bores in a compact of metal powder, but it can also lateral recesses are produced in this compact, which are not continuous, so that the cross-pressing device must absorb the forces occurring during pressing in Querpressrichtung. The passages for the cross press dies may be obtained by recesses mounted in the annular die form, but the inner part of the die assembly may also be fully split or partially split, these die parts being spaced from each other, around the recesses for the passages of the cross press dies form, which may be inserted into an annular die holder. As a result, lateral recesses and / or elevations can be attached to the compact.
In vorteilhafter Weise umfasst der Antrieb jeder Querpressvorrichtung einen Linearantrieb mit einem feststehenden, am Rahmen der Querpressvorrichtung befestigten Teil und einen bezüglich des festen Teils linear verschiebbaren Teil, welcher linear verschiebbare Teil mit einem ersten Keil verbunden ist, dessen Keilfläche auf die Keilfläche eines zweiten Keils wirkt, welcher im wesentlichen rechtwinklig zum ersten Keil in Querpressrichtung verschiebbar ist. Dadurch kann in optimaler Weise die auf den Querpressstempel während des Pressvorgangs wirkende Kraft aufgenommen werden, ohne dass der Linearantrieb stark beansprucht würde.Advantageously, the drive of each transverse pressing device comprises a linear drive with a fixed part attached to the frame of the transverse pressing device and a part which can be displaced linearly relative to the fixed part, which linearly displaceable part is connected to a first wedge whose wedge surface acts on the wedge surface of a second wedge which is displaceable substantially perpendicular to the first wedge in the transverse pressing direction. As a result, the force acting on the transverse pressure ram during the pressing process can be optimally absorbed without the linear drive being subjected to great stress.
In vorteilhafter Weise sind der erste Keil und der zweite Keil entlang am Rahmen der Querpressvorrichtung angebrachten linearen Führungsbahnen verschiebbar, wodurch die auftretenden, auf den Querpressstempel wirkenden Kräfte grösstenteils durch den Rahmen aufgenommen werden.In an advantageous manner, the first wedge and the second wedge are displaceable along linear guideways attached to the frame of the transverse pressing device, whereby the occurring forces acting on the transverse ram are largely absorbed by the frame.
Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, dass die Pressposition des Querpressstempels durch einen verstellbaren Anschlag festlegbar ist, wodurch die Pressposition des Querpressstempels unabhängig von weiteren Einflüssen immer sehr genau erreichbar ist.A further advantageous embodiment of the invention is that the pressing position of the cross press ram can be fixed by an adjustable stop, whereby the pressing position of the cross press ram is always reached very accurately regardless of further influences.
In vorteilhafter Weise ist der Anschlag aus einem quer zur Verschieberichtung des ersten Keils verstellbaren dritten Keils gebildet, der im Rahmen geführt ist und dessen Keilfläche mit einer weiteren Keilfläche des ersten Keils zusammenwirkt. Dadurch erreicht man einerseits eine sehr feine und exakte Einstellmöglichkeit, andererseits ist der Anschlag sehr stabil und praktisch keinen Verformungen unterworfen.Advantageously, the stop is formed of a transverse to the direction of displacement of the first wedge adjustable third wedge, which is guided in the frame and whose wedge surface cooperates with a further wedge surface of the first wedge. As a result, on the one hand to achieve a very fine and exact adjustment, on the other hand, the stop is very stable and virtually no deformations subject.
In vorteilhafter Weise ist die Position des Querpressstempels bezüglich der Matrizenanordnung über Messmittel feststellbar und an die Steuereinheit übermittelbar, wodurch die Position der Querpressstempel überwacht wird und die Einstellung der Pressposition des Querpressstempels über den Anschlag einfach möglich wird.Advantageously, the position of the cross press ram with respect to the die assembly via measuring means can be detected and transmitted to the control unit, whereby the position of the transverse ram is monitored and the adjustment of the pressing position of the cross press ram over the stop is easily possible.
Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, dass jeder Querpressstempel über eine Kopplungseinrichtung in der jeweiligen Querpressvorrichtung gehalten ist. Dadurch lassen sich in einfacher Weise die Querpressstempel auswechseln, während die Querpressvorrichtung für praktisch alle zu pressenden Presslinge mit unterschiedlichen Formen verwendbar ist.A further advantageous embodiment of the invention is that each cross-pressing punch is held via a coupling device in the respective transverse pressing device. As a result, the transverse pressing dies can be exchanged in a simple manner, while the transverse pressing device can be used for virtually all compacts to be pressed having different shapes.
Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, dass jede Querpressvorrichtung mit einem vorstehenden Bolzen ausgestattet ist und dass die Platte mit mehreren Bohrungen versehen ist, welcher Bolzen im auf die Platte aufgesetzten Zustand der Querpressvorrichtung in eine der Bohrungen hineinragt, und dass mehrere Querpressvorrichtungen auf der Platte in verschiedenen Position befestigbar sind. Dadurch lassen sich die Querpressvorrichtungen in vorbestimmten Positionen zu bestimmten Matrizenanordnungen einsetzen, ohne dass grosse Ausrichtungen der Querpressvorrichtungen vorgenommen werden müssen.A further advantageous embodiment of the invention is that each transverse pressing device is equipped with a protruding bolt and that the plate is provided with a plurality of holes, which bolt protrudes in the mounted on the plate state of Querpressvorrichtung in one of the holes, and that a plurality Querpressvorrichtungen on the Plate can be fastened in different position. As a result, the transverse pressing devices can be used in predetermined positions for specific die arrangements without having to carry out large orientations of the transverse pressing devices.
In vorteilhafter Weise sind den Bohrungen in der Platte entsprechende Gewindebohrungen zugeordnet, in welche Spannschrauben einschraubbar sind, die in entsprechenden Ausnehmungen im Rahmen jeder Querpressvorrichtung gehalten sind. Dadurch lassen sich die Querpressvorrichtungen in den entsprechenden Positionen auf der Platte in einfacher Weise befestigen.Advantageously, the holes in the plate corresponding threaded holes are assigned, in which clamping screws are screwed, which are held in corresponding recesses in the context of each transverse pressing device. As a result, the transverse pressing devices in the corresponding positions on the plate can be fastened in a simple manner.
In vorteilhafter Weise sind die Ausnehmungen für die Aufnahme der Spannschrauben im Rahmen der Querpressvorrichtung schlitzförmig ausgebildet, so dass die auf die Platte aufgesetzte Querpressvorrichtung jeweils um den Bolzen geringfügig verschwenkt und somit bezüglich der Matrize ausgerichtet werden kann, wonach die Querpressvorrichtung auf der Platte über die Spannschrauben fixiert werden kann.Advantageously, the recesses for receiving the clamping screws in the transverse pressing device are slot-shaped, so that the patch on the plate transverse pressing device each slightly pivoted about the bolt and thus can be aligned with respect to the die, after which the cross pressing device on the plate on the clamping screws can be fixed.
Eine Ausführungsform der Erfindung wird nachfolgend anhand der beiliegenden Zeichnung beispielhaft näher erläutert.An embodiment of the invention will be explained in more detail by way of example with reference to the accompanying drawings.
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Fig. 1 in räumlicher Darstellung eine untere Stempelanordnung mit einer Matrizenanordnung mit Platte und drei auf dieser Platte befestigte Querpressvorrichtungen;Fig. 1 in a spatial representation of a lower punch assembly with a die assembly with plate and three mounted on this plate cross pressing devices; -
Fig. 2 eine Draufsicht auf die Matrizenanordnung mit der Platte und den darauf befestigten Querpressvorrichtungen gemässFig. 1 ;Fig. 2 a plan view of the die assembly with the plate and the transverse pressing devices mounted thereonFig. 1 ; -
Fig. 3 in räumlicher Darstellung eine Querpressvorrichtung ohne Querpressstempel, in Pressposition;Fig. 3 in a spatial representation of a cross-pressing device without cross-press, in pressing position; -
Fig. 4 in räumlicher Darstellung eine Ansicht der Querpressvorrichtung gemässFig. 3 mit abgenommener Abdeckplatte;Fig. 4 in a spatial representation of a view of the transverse pressing device according toFig. 3 with removed cover plate; -
Fig. 5 eine Draufsicht auf die Querpressvorrichtung gemässFig. 3 , zum Teil geschnitten;Fig. 5 a plan view of the transverse pressing device according toFig. 3 , partly cut; -
Fig. 6 eine Schnittdarstellung der Querpressvorrichtung entlang Linie VI-VI gemässFig. 7 ;Fig. 6 a sectional view of the transverse pressing device along line VI-VI according toFig. 7 ; -
Fig. 7 eine Schnittdarstellung der Querpressvorrichtung entlang Linie VII-VII gemässFig. 6 ;Fig. 7 a sectional view of the transverse pressing device along line VII-VII according toFig. 6 ; -
Fig. 8 eine räumliche Darstellung der Querpressvorrichtung in der zurückgezogenen Position;Fig. 8 a perspective view of the transverse pressing device in the retracted position; -
Fig. 9 in räumlicher Darstellung eine Ansicht der Querpressvorrichtung gemässFig. 8 mit abgenommener Abdeckplatte;Fig. 9 in a spatial representation of a view of the transverse pressing device according toFig. 8 with removed cover plate; -
Fig. 10 eine Draufsicht auf die Querpressvorrichtung gemässFig. 8 , zum Teil geschnitten;Fig. 10 a plan view of the transverse pressing device according toFig. 8 , partly cut; -
Fig. 11 eine Schnittdarstellung der Querpressvorrichtung entlang Linie XI-XI gemässFig. 12 ;Fig. 11 a sectional view of the transverse pressing device along line XI-XI according toFig. 12 ; -
Fig. 12 eine Schnittdarstellung der Querpressvorrichtung entlang Linie XII-XII gemässFig. 11 ; undFig. 12 a sectional view of the transverse pressing device along line XII-XII according toFig. 11 ; and -
Fig. 13 eine räumliche Darstellung der Querpressvorrichtung gemässFig. 3 mit zusätzlich entferntem zweiten Keil.
AusFig. 1 ist in schematischer Darstellung die untere Stempelanordnung 1 dargestellt, die als Adapter ausgebildet ist und in bekannter Weise in den unteren Teil einer nicht dargestellten Pulverpresse eingesetzt werden kann. Auf diese untere Stempelanordnung 1 ist eine Platte 2 aufgesetzt, auf welcher eine Matrizenanordnung 3 befestigt ist. Auf dieser Platte 2 sind Querpressvorrichtungen 4 befestigbar, welche jeweils mit einem Querpressstempel 5 ausgestattet sind, die über einen Antrieb, der später noch im Detail beschrieben wird, linear antreibbar sind. Diese Querpressstempel 5 sind durch Öffnungen 6 in der Matrize 7 der Matrizenanordnung 3 geführt, sie münden im Formhohlraum 8, der in der Matrizenanordnung 3 gebildet ist, und in welchen das Metallpulver einfüllbar ist und während des Pressvorgangs in bekannter Weise zum entsprechenden Pressling umgeformt wird.
Bei der inFig. 1 dargestellten Ausgestaltung der Einrichtung sind auf der Platte 2 drei Querpressvorrichtungen 4 angeordnet, selbstverständlich können je nach Art des Presslings, der hergestellt werden soll, und der entsprechend ausgebildeten Matrize beispielsweise zwei bis sechs Querpressvorrichtungen angeordnet werden.
Oberhalb der Matrizenanordnung 3 und den Querpressvorrichtungen 4 wird in bekannter, nicht dargestellter Weise eine Füllschuhplatte aufgesetzt, wozu auf der Platte 2 Säulen 9 angebracht sind, auf welcher Füllschuhplatte in bekannter Weise der Füllschuh verschiebbar angebracht ist, mit welchem der Formhohlraum 8 mit Metallpulver aufgefüllt werden kann.
Wie später noch im Detail gesehen wird, weisen die Antriebe der Querpressvorrichtungen jeweils einen Hydraulikzylinder auf, zur Versorgung dieser Hydraulikzylinder sind Hydraulikleitungen 10 angebracht, welche in bekannter, nicht dargestellter Weise mit dem Hydrauliksystem der Pulverpresse verbunden sind und deren Ventile in bekannter Weise über eine Steuereinheit der Pulverpresse ansteuerbar sind.
AusFig. 2 ist die Anordnung von drei Querpressvorrichtungen 4 auf der Platte 2 dargestellt. Die Querpressstempel 5 dieser Querpressvorrichtungen 4 ragen in die Matrize 7 hinein, die Matrize 7 ist im vorliegenden Ausführungsbeispiel geteilt, die einzelnen Teile dieser Matrize 7 sind in einen Matrizenring 11 eingesetzt, durch die Teilungen der Matrize 7 werden die entsprechenden Öffnungen 6 für die Querpressstempel 5 gebildet.
Die Platte 2 ist mit mehreren Bohrungen 12 versehen, diese Bohrungen 12 dienen der Aufnahme eines Bolzens 13 (Fig. 7 ) der an jeder Querpressvorrichtung 4 angebracht ist und untenseitig vorstehend ist, wodurch die Querpressvorrichtungen 4 auf der Platte 2 positioniert werden können. Jeder dieser Bohrungen 12 sind zwei Gewindebohrungen 14 zugeordnet, die in die Platte 2 eingelassen sind, und in welche Spannschrauben 15 einschraubbar sind, mit welchen die Querpressvorrichtungen 4 auf der Platte 2 befestigt werden können. Für diese Spannschrauben 15 sind in den Querpressvorrichtungen 4 Ausnehmungen 16 angebracht, die schlitzförmig ausgebildet sind, so dass jede Querpressvorrichtung 4 um den Bolzen 13 (Fig. 7 ) in der Bohrung 12 geringfügig verschwenkbar ist und in der entsprechenden Position über die Spannschrauben festgeschraubt werden kann, die Querpressstempel 5 müssen somit nicht genau ins Zentrum der Matrize 7 ausgerichtet sein, sondern können vom Zentrum abweichen, wie dies bei der Matrize 7 der Ausführungsform gemässFig. 2 ersichtlich ist. Mit dieser Matrize 7 werden Presslinge 17 hergestellt, die die Form von Wendeschneidplatten aufweisen.
Fig. 3 zeigt eine Querpressvorrichtung 4. Diese Querpressvorrichtung 4 umfasst einen Rahmen 18, in welchem der Antrieb, der als Linearantrieb ausgebildet ist, gehalten ist, wie später noch im Detail beschrieben wird. Über diesen Linearantrieb ist ein erster Keil 19 in einer Richtung verschiebbar, dargestellt durch den Doppelpfeil 20. Dieser erste Keil 19 ist entlang einer linearen Führungsbahn 21 geführt, die parallel zur Verschieberichtung, dargestellt durch den Doppelpfeil 20, ausgerichtet ist. Diese lineare Führungsbahn 21 ist an der Abdeckplatte 25 angebracht, welche auf den Rahmen 18 aufgeschraubt ist.
An der Keilfläche 22 des ersten Keils 19 liegt eine Keilfläche 23 eines zweiten Keils 24 an. Dieser zweite Keil 24 ist ebenfalls linear verschiebbar, und zwar in der Richtung, die rechtwinklig zur Verschieberichtung des ersten Keils 19, dargestellt durch den Doppelpfeil 20, ausgerichtet ist, welche Richtung durch einen Doppelpfeil 26 dargestellt ist. Die durch den Doppelpfeil 26 dargestellte Richtung entspricht auch der Querpressrichtung, mit welcher der nicht dargestellte Querpressstempel 5 (Fig. 1 und2 ) verschiebbar ist. Durch Bewegen des ersten Keils 19 entlang der linearen Führungsbahn 21 bewegt sich somit der zweite Keil 24 in Richtung des Doppelpfeils 26, geführt durch die ebenfalls in der Abdeckplatte 25 angebrachten Linearführungen 27. Auf der der Keilfläche 23 abgewandten Seite des zweiten Keils 24 ist eine Kopplungseinrichtung 28 angebracht, mit welcher der nicht dargestellte Querpressstempel 5 (Fig. 1 und2 ) gehalten werden kann, diese Querpressstempel sind in einfacher Weise austauschbar.
Fig. 4 zeigt die Querpresseinrichtung 4 gemässFig. 3 , wobei hier die Abdeckplatte 25 weggelassen ist. In dieser Darstellung ist ersichtlich, dass der erste Keil 19 mit einem dritten Keil 29 zusammenwirkt, wobei der erste Keil 19 mit einer weiteren Keilfläche 30 versehen ist, welche mit der Keilfläche 31 des dritten Keils 29 zur Anlage kommt. Dieser dritte Keil 29 dient als Anschlag für den ersten Keil 19, wobei dieser Anschlag verstellbar ist, wie später noch gesehen wird.
Fig. 5 zeigt den Rahmen 18 der Querpressvorrichtung 4, mit der Anordnung des ersten Keils 19, des zweiten Keils 24 und des dritten Keils 29. Der dritte Keil 29 ist mit einem Steg 32 ausgestattet, der im Rahmen 18 quer zur Verschieberichtung des ersten Keils 19, dargestellt durch den Doppelpfeil 20, verschiebbar geführt gehalten ist. Im Rahmen 18 bzw. in der Abdeckplatte 25 ist eine mit einem Gewinde versehene Bohrung 33 angebracht, in welche eine Stellschraube 34 eingeschraubt ist. Durch Verdrehen dieser Stellschraube 34 verschiebt sich der Keil 29 quer zur Verschieberichtung des ersten Keils 19, wodurch die Position des ersten Keils 19 inFig. 5 nach unten festgelegt werden kann. Diese Position entspricht auch der voll ausgefahrenen Position des zweiten Keils 24 und demzufolge des Querpressstempels 5 (Fig. 1 und2 ). In dieser Position befindet sich der Querpressstempel in der Pressstellung. Dadurch lässt sich die Position des Querpressstempels in Pressstellung durch Verschieben des dritten Keils 29 sehr genau positionieren. Die Position des zweiten Keils 24 und demzufolge des Querpressstempels 5 wird in bekannter Weise durch am Rahmen 18 der Querpressvorrichtung 4 angebrachte Messmittel 35 abgetastet, das entsprechende Signal wird an die Maschinensteuerung in bekannter Weise weitergeleitet.
Fig. 6 zeigt den Antrieb 36, mit welchem der erste Keil 19, der zweite Keil 24 und somit der Querpressstempel 5 verschiebbar sind. Dieser Antrieb 36 umfasst einen im Rahmen 18 der Querpressvorrichtung 4 angeordneten Hydraulikzylinder 37, in welchem ein Kolben 38 mit einer daran angebrachten Kolbenstange 39 verschiebbar gehalten ist. Über entsprechende Beaufschlagung des Kolben 38 wird dieser im Hydraulikzylinder 37 vor- bzw. zurückgeschoben. InFig. 6 sind zudem noch die Ausnehmungen 16 ersichtlich, die schlitzförmig ausgebildet sind, in welche die Spannschrauben 15 eingeschraubt sind, mit welchen die Querpressvorrichtung 4 befestigbar ist.
Fig. 7 zeigt wiederum den Antrieb 36, der im Rahmen 18 der Querpressvorrichtung 14 angeordnet ist. An dem dem Kolben 38 abgewandten Endbereich der Kolbenstange 39 ist ein Bügel 40 befestigt, welcher mit dem ersten Keil 19 verbunden ist. Somit lässt sich durch Bewegen des Kolbens 38 im Hydraulikzylinder 37 der erste Keil 19 verschieben, die Pressstellung, wie sie inFig. 7 und übrigens in allen vorhergehenden Figuren dargestellt ist, wird durch den dritten Keil 29 festgelegt.
Ebenfalls inFig. 7 ersichtlich ist der Bolzen 13, mittels welchem die Querpressvorrichtung 4 auf der Platte 2 (Fig. 1 und2 ) positioniert wird.
Fig. 8 zeigt die Querpressvorrichtung 4, entsprechendFig. 3 , wobei sich aber der zweite Keil 24 und demzufolge der nicht dargestellte Querpressstempel in der zurückgezogenen Position befindet. Der erste Keil 19 ist demzufolge ebenfalls zurückgefahren, das heisst, dass die weitere Keilfläche 30 des ersten Keils 19 von der Keilfläche 31 des dritten Keils 29 beabstandet ist.
Fig. 9 zeigt die Querpressvorrichtung 4 in der inFig. 8 dargestellten Position, wobei hier die Abdeckplatte 25 weggelassen wurde.
Fig. 10 zeigt die Querpressvorrichtung 4 in der entsprechenden Position gemässFig. 8 undFig. 9 .
Dieselbe Position, in welcher der Querpressstempel zurückgezogen ist, ist inFig. 11 dargestellt. Der Kolben 38 befindet sich in der zurückgezogenen Position im Hydraulikzylinder 37. Entsprechend sind die Kolbenstange 39 und der daran befestigte Bügel 40 ebenfalls in der zurückgezogenen Position.
Die gleiche Darstellung wie inFig. 11 ist ebenfalls inFig. 12 ersichtlich, der Kolben 38 befindet sich in der zurückgezogenen Position.
In der Darstellung gemässFig. 13 ist der erste Keil 19 ersichtlich, der mit einer Abstufung 41 ausgestattet ist, auf welcher Abstufung 41 Bolzen 42 angeordnet sind. Der zweite Keil 24, der inFig. 13 nicht dargestellt ist, ist mit einer der Abstufung 21 entsprechenden Ausnehmung versehen, in diese Ausnehmung ist eine Nut eingelassen, in welche die Bolzen 42 hineinragen. Durch diese Ausgestaltung ist der zweite Keil 24 am ersten Keil 19 angekuppelt, beim Zurückfahren des ersten Keils 19 und zum Zurückziehen der Querpressstempel aus der Matrize wird der zweite Keil 24 über diese Verbindung zwangsweise ebenfalls zurückgezogen.
Wie insbesondere ausFig. 3 ersichtlich ist, in welcher sich der Pressstempel in der Pressposition befindet und die auf die Vorderfläche des Pressstempels wirkenden Presskräfte beim Pressen eines Presslings aufnehmen muss, wird diese aufgenommene Presskraft in axialer Richtung auf den zweiten Keil 24 übertragen, von wo diese über die Keilfläche des zweiten Keils 24 auf die entsprechende Keilfläche 22 des ersten Keils 19 übertragen wird. Die axial wirkende Kraftkomponente wird durch den ersten Keil 19 auf die lineare Führungsbahn 21 des Rahmens 18 übertragen. Die durch die Schrägstellung der Keilflächen 22 und 23 entstehende Komponente, die in Richtung des Doppelpfeils 20 wirkt, ist durch den relativ kleinen Neigungswinkel dieser beiden Keilflächen 22 und 23 und die entstehende Reibung relativ gering, so dass die auf den Antrieb 36 wirkende Restkraft sehr klein ist und vom Antrieb ohne weiteres übernommen werden kann.
Mit dieser erfindungsgemässen Ausgestaltung kann eine Pulverpresse mit mehreren Querpressvorrichtungen ausgestattet werden, wobei diese in sehr vielfältiger Weise in unterschiedlicher Anzahl auf der entsprechenden Platte positioniert und befestigt werden können. Dadurch erhält man eine grosse Vielfalt von auf dieser Pulverpresse herstellbaren Presslinge, eine Umrüstung ist jeweils in einfacher Weise durchführbar.Fig. 13 a spatial representation of the transverse pressing device according toFig. 3 with additionally removed second wedge.
OutFig. 1 is shown in a schematic representation of the lower punch assembly 1, which is designed as an adapter and can be used in a known manner in the lower part of a powder press, not shown. On this lower punch assembly 1, aplate 2 is placed, on which a dieassembly 3 is attached. On thisplate 2 are transversepressing devices 4 can be fastened, which are each equipped with a Querpressstempel 5, which are linearly driven by a drive, which will be described in detail later. Thesetransverse punches 5 are guided throughopenings 6 in the die 7 of the dieassembly 3, they open in themold cavity 8, which is formed in thedie assembly 3, and in which the metal powder is fillable and is formed during the pressing process in a known manner to the corresponding compact.
At the inFig. 1 illustrated embodiment of the device twotransverse press devices 4 are arranged on theplate 2, of course, depending on the type of compact, which is to be produced, and the correspondingly formed die, for example, two to six transverse pressing devices are arranged.
Above the dieassembly 3 and the transversepressing devices 4, a Füllschuhplatte is placed in a known manner, not shown, including on theplate 2columns 9 are mounted on which Füllschuhplatte in a known manner the filling shoe is slidably mounted, with which themold cavity 8 are filled with metal powder can.
As will be seen in more detail later, the drives of the transverse pressing devices each have a hydraulic cylinder, to supply these hydraulic cylindershydraulic lines 10 are attached, which are connected in a known, not shown manner with the hydraulic system of the powder press and their valves in a known manner via a control unit the powder press can be controlled.
OutFig. 2 the arrangement of three transversepressing devices 4 on theplate 2 is shown. Thetransverse compression punches 5 of these transversepressing devices 4 protrude into the die 7, the die 7 is divided in the present embodiment, the individual parts of this die 7 are inserted into adie ring 11, through the divisions of the die 7 are thecorresponding openings 6 for the cross press die. 5 educated.
Theplate 2 is provided with a plurality ofbores 12, thesebores 12 serve to receive a bolt 13 (FIG.Fig. 7 ) which is attached to each transversepressing device 4 and protruding at the bottom, whereby the transversepressing devices 4 can be positioned on theplate 2. Each of theseholes 12 are associated with two threadedholes 14, which are embedded in theplate 2, and in which clamping screws 15th can be screwed, with which the transversepressing devices 4 can be mounted on theplate 2. For these clampingscrews 15 4recesses 16 are mounted in the transverse pressing devices, which are slit-shaped, so that each transversepressing device 4 to the bolt 13 (Fig.Fig. 7 ) in thebore 12 is slightly pivotable and can be screwed in the appropriate position on the clamping screws, theQuerpressstempel 5 must therefore not be aligned exactly in the center of thedie 7, but may deviate from the center, as in thedie 7 of the embodiment according toFig. 2 is apparent. With this die 7,compacts 17 are produced, which have the shape of indexable inserts.
Fig. 3 shows across-pressing device 4. This transversepressing device 4 comprises aframe 18, in which the drive, which is designed as a linear drive, is held, as will be described in detail later. Via this linear drive, afirst wedge 19 is displaceable in one direction, represented by thedouble arrow 20. Thisfirst wedge 19 is guided along alinear guide track 21, which is aligned parallel to the displacement direction, represented by thedouble arrow 20. Thislinear guide track 21 is attached to thecover plate 25, which is screwed onto theframe 18.
On thewedge surface 22 of thefirst wedge 19 is awedge surface 23 of asecond wedge 24 at. Thissecond wedge 24 is also linearly displaceable, in the direction which is aligned at right angles to the direction of displacement of thefirst wedge 19, represented by thedouble arrow 20, which direction is represented by adouble arrow 26. The direction represented by thedouble arrow 26 also corresponds to the transverse pressing direction, with which thecross-pressing punch 5, not shown, (FIG.Fig. 1 and2 ) is displaceable. By moving thefirst wedge 19 along thelinear guide track 21 thus thesecond wedge 24 moves in the direction of thedouble arrow 26, guided by the likewise mounted in thecover plate 25linear guides 27. On thewedge surface 23 opposite side of thesecond wedge 24 is acoupling device 28 attached, with Which of the transverse press dies 5, not shown, (Fig. 1 and2 ), these transversal punches are easily interchangeable.
Fig. 4 shows thetransverse press 4 accordingFig. 3 , wherein here thecover plate 25 is omitted. In this illustration it can be seen that thefirst wedge 19 cooperates with athird wedge 29, wherein thefirst wedge 19 is provided with afurther wedge surface 30, which comes to rest with thewedge surface 31 of thethird wedge 29. Thisthird wedge 29 serves as a stop for thefirst wedge 19, this stop being adjustable, as will be seen later.
Fig. 5 shows theframe 18 of thecross-pressing device 4, with the arrangement of thefirst wedge 19, thesecond wedge 24 and thethird wedge 29. Thethird wedge 29 is provided with aweb 32 which is shown in theframe 18 transversely to the direction of displacement of thefirst wedge 19 held by thedouble arrow 20, slidably guided. In theframe 18 and in thecover plate 25 is provided with a threadedbore 33, into which ascrew 34 is screwed. By turning thisscrew 34, thewedge 29 moves transversely to the direction of displacement of thefirst wedge 19, whereby the position of thefirst wedge 19 inFig. 5 can be set down. This position also corresponds to the fully extended position of thesecond wedge 24 and consequently of the transverse punch 5 (FIG.Fig. 1 and2 ). In this position, the transverse punch is in the pressing position. As a result, the position of the transverse press ram in the press position can be positioned very accurately by displacing thethird wedge 29. The position of thesecond wedge 24 and consequently of the transversepressing ram 5 is scanned in a known manner by means of measuring means 35 mounted on theframe 18 of the transversepressing device 4, the corresponding signal being forwarded to the machine control in a known manner.
Fig. 6 shows thedrive 36, with which thefirst wedge 19, thesecond wedge 24 and thus the cross press die 5 are displaceable. Thisdrive 36 comprises a arranged in theframe 18 of the transversepressing device 4hydraulic cylinder 37, in which apiston 38 is slidably mounted with apiston rod 39 attached thereto. About appropriate Actuation of thepiston 38, this is pushed forward or back in thehydraulic cylinder 37. InFig. 6 are also still therecesses 16 can be seen, which are slit-shaped, in which the clamping screws 15 are screwed, with which the transversepressing device 4 can be fastened.
Fig. 7 again shows thedrive 36, which is arranged in theframe 18 of the transversepressing device 14. On thepiston 38 facing away from the end portion of thepiston rod 39, abracket 40 is fixed, which is connected to thefirst wedge 19. Thus, by moving thepiston 38 in thehydraulic cylinder 37, thefirst wedge 19 can be displaced, the press position as shown in FIGFig. 7 Incidentally, as shown in all the preceding figures, it is determined by thethird wedge 29.
Also inFig. 7 it can be seen thebolt 13, by means of which the transversepressing device 4 on the plate 2 (Fig. 1 and2 ) is positioned.
Fig. 8 shows thecross-pressing device 4, accordinglyFig. 3 but with thesecond wedge 24, and thus the cross press die, not shown, in the retracted position. Thefirst wedge 19 is therefore also retracted, that is, thefurther wedge surface 30 of thefirst wedge 19 is spaced from thewedge surface 31 of thethird wedge 29.
Fig. 9 shows thecross-pressing device 4 in the inFig. 8 shown position, in which case thecover plate 25 has been omitted.
Fig. 10 shows thecross-pressing device 4 in the corresponding position according toFig. 8 andFig. 9 ,
The same position in which the cross punch is retracted is in FIGFig. 11 shown. Thepiston 38 is in the retracted position in thehydraulic cylinder 37. Accordingly, thepiston rod 39 and thebracket 40 attached thereto are also in the retracted position.
The same representation as inFig. 11 is also inFig. 12 seen, thepiston 38 is in the retracted position.
In the illustration according toFig. 13 is thefirst wedge 19 can be seen, which is equipped with astep 41 on whichgradation 41bolts 42 are arranged. Thesecond wedge 24, the inFig. 13 is not shown, is provided with one of thegradation 21 corresponding recess, in this recess a groove is recessed into which thebolts 42 protrude. By this configuration, thesecond wedge 24 is coupled to thefirst wedge 19, when retracting thefirst wedge 19 and retracting the cross press die from the die, thesecond wedge 24 is forcibly also retracted via this connection.
As in particular fromFig. 3 it can be seen in which the press ram is in the pressing position and must absorb the pressing force acting on the front surface of the press ram when pressing a compact, this recorded pressing force is transmitted in the axial direction of thesecond wedge 24, from where this on the wedge surface of thesecond Wedge 24 is transmitted to the correspondingwedge surface 22 of thefirst wedge 19. The axially acting force component is transmitted through thefirst wedge 19 onto thelinear guide track 21 of theframe 18. The resulting by the inclination of the wedge surfaces 22 and 23 component acting in the direction of thedouble arrow 20 is relatively small due to the relatively small angle of inclination of these two 22 and 23 and the resulting friction, so that the force acting on thewedge surfaces drive 36 residual force is very small is and can be taken over by the drive easily.
With this embodiment according to the invention, a powder press can be equipped with a plurality of transverse pressing devices, which can be positioned and fastened on the corresponding plate in a very variable number of ways. This gives a wide variety of producible on this powder pressings, a conversion is in each case in a simple manner feasible.
Claims (10)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES08152858T ES2362317T3 (en) | 2008-03-17 | 2008-03-17 | POWDER PRESS FOR THE MANUFACTURE OF A PRESSED METAL POWDER PIECE. |
EP08152858A EP2103423B8 (en) | 2008-03-17 | 2008-03-17 | Powder moulding press for producing a pressed product from metal powder |
AT08152858T ATE500958T1 (en) | 2008-03-17 | 2008-03-17 | POWDER PRESS FOR PRODUCING A COMPLETE FROM METAL POWDER |
DE502008002806T DE502008002806D1 (en) | 2008-03-17 | 2008-03-17 | Powder press for producing a compact of metal powder |
PCT/EP2009/052905 WO2009115444A1 (en) | 2008-03-17 | 2009-03-12 | Powder press for producing a metal powder compact |
CN200980109339.2A CN101977760B (en) | 2008-03-17 | 2009-03-12 | Powder press for the manufacture of a metal powder compact |
JP2011500155A JP5479445B2 (en) | 2008-03-17 | 2009-03-12 | Powder press machine for producing compacts from metal powder |
KR1020107022324A KR101484645B1 (en) | 2008-03-17 | 2009-03-12 | Powder press for producing a metal powder compact |
US12/922,871 US8523550B2 (en) | 2008-03-17 | 2009-03-12 | Powder press for the manufacture of a metal powder compact |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08152858A EP2103423B8 (en) | 2008-03-17 | 2008-03-17 | Powder moulding press for producing a pressed product from metal powder |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2103423A1 true EP2103423A1 (en) | 2009-09-23 |
EP2103423B1 EP2103423B1 (en) | 2011-03-09 |
EP2103423B8 EP2103423B8 (en) | 2011-06-15 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08152858A Not-in-force EP2103423B8 (en) | 2008-03-17 | 2008-03-17 | Powder moulding press for producing a pressed product from metal powder |
Country Status (9)
Country | Link |
---|---|
US (1) | US8523550B2 (en) |
EP (1) | EP2103423B8 (en) |
JP (1) | JP5479445B2 (en) |
KR (1) | KR101484645B1 (en) |
CN (1) | CN101977760B (en) |
AT (1) | ATE500958T1 (en) |
DE (1) | DE502008002806D1 (en) |
ES (1) | ES2362317T3 (en) |
WO (1) | WO2009115444A1 (en) |
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US8033805B2 (en) | 2007-11-27 | 2011-10-11 | Kennametal Inc. | Method and apparatus for cross-passageway pressing to produce cutting inserts |
US8062014B2 (en) | 2007-11-27 | 2011-11-22 | Kennametal Inc. | Method and apparatus using a split case die to press a part and the part produced therefrom |
EP2441573A2 (en) † | 2010-10-13 | 2012-04-18 | Komage-Gellner Maschinenfabrik KG | Press and method for manufacturing a moulded part out of powder material |
EP2551097A1 (en) * | 2011-07-28 | 2013-01-30 | Osterwalder AG | Powder press |
DE102012024503A1 (en) * | 2012-12-14 | 2014-06-18 | Dorst Technologies Gmbh & Co. Kg | Modular ceramic and/or metal powder assembly, useful in press/adapter for pressing molded part, comprises die, lateral adjustment drive module for adjusting transverse punch in lateral adjustment device, and holding device having housing |
EP2839950A2 (en) | 2013-08-23 | 2015-02-25 | Fette Compacting GmbH | Press for producing moulded articles from powder material |
WO2016139151A1 (en) | 2015-03-05 | 2016-09-09 | Kramer W Dietmar | Powder press and a feed housing having preferably a plurality of stamps which are movable for a transverse press |
CN112458384A (en) * | 2020-11-25 | 2021-03-09 | 浙江炜烨晶体纤维有限公司 | Adopt polycrystal mullite fibre heat retaining discharge plasma sintering mould |
WO2022033883A1 (en) * | 2020-08-11 | 2022-02-17 | Kramer W Dietmar | Powder press for producing pressed articles |
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WO2014090226A1 (en) * | 2012-12-14 | 2014-06-19 | Dorst Technologies Gmbh & Co. Kg | Ceramic and/or metal powder press arrangement for pressing a moulded part |
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US8033805B2 (en) | 2007-11-27 | 2011-10-11 | Kennametal Inc. | Method and apparatus for cross-passageway pressing to produce cutting inserts |
US8062014B2 (en) | 2007-11-27 | 2011-11-22 | Kennametal Inc. | Method and apparatus using a split case die to press a part and the part produced therefrom |
EP2441573A2 (en) † | 2010-10-13 | 2012-04-18 | Komage-Gellner Maschinenfabrik KG | Press and method for manufacturing a moulded part out of powder material |
EP2441573A3 (en) * | 2010-10-13 | 2013-11-13 | Komage-Gellner Maschinenfabrik KG | Press and method for manufacturing a moulded part out of powder material |
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DE102012024503A1 (en) * | 2012-12-14 | 2014-06-18 | Dorst Technologies Gmbh & Co. Kg | Modular ceramic and/or metal powder assembly, useful in press/adapter for pressing molded part, comprises die, lateral adjustment drive module for adjusting transverse punch in lateral adjustment device, and holding device having housing |
EP2839950A2 (en) | 2013-08-23 | 2015-02-25 | Fette Compacting GmbH | Press for producing moulded articles from powder material |
DE102013109157A1 (en) | 2013-08-23 | 2015-02-26 | Fette Compacting Gmbh | Press for the production of compacts of powdered material |
DE102013109157B4 (en) * | 2013-08-23 | 2016-06-09 | Fette Compacting Gmbh | Press for the production of compacts of powdered material |
WO2016139151A1 (en) | 2015-03-05 | 2016-09-09 | Kramer W Dietmar | Powder press and a feed housing having preferably a plurality of stamps which are movable for a transverse press |
US10899100B2 (en) | 2015-03-05 | 2021-01-26 | Dietmar W Kramer | Powder press and a feed housing having preferably a plurality of stamps which are movable for a transverse press |
WO2022033883A1 (en) * | 2020-08-11 | 2022-02-17 | Kramer W Dietmar | Powder press for producing pressed articles |
CN112458384A (en) * | 2020-11-25 | 2021-03-09 | 浙江炜烨晶体纤维有限公司 | Adopt polycrystal mullite fibre heat retaining discharge plasma sintering mould |
Also Published As
Publication number | Publication date |
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CN101977760B (en) | 2014-01-22 |
CN101977760A (en) | 2011-02-16 |
DE502008002806D1 (en) | 2011-04-21 |
KR20100116231A (en) | 2010-10-29 |
KR101484645B1 (en) | 2015-01-21 |
ATE500958T1 (en) | 2011-03-15 |
JP2011514260A (en) | 2011-05-06 |
JP5479445B2 (en) | 2014-04-23 |
US8523550B2 (en) | 2013-09-03 |
WO2009115444A1 (en) | 2009-09-24 |
EP2103423B1 (en) | 2011-03-09 |
US20110027400A1 (en) | 2011-02-03 |
ES2362317T3 (en) | 2011-07-01 |
EP2103423B8 (en) | 2011-06-15 |
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