EP3170654B1 - Outil de presse en céramique et/ou en poudre métallique, presse et procédé de montage d'un dispositif de compression de poudre métallique et/ou de céramique - Google Patents

Outil de presse en céramique et/ou en poudre métallique, presse et procédé de montage d'un dispositif de compression de poudre métallique et/ou de céramique Download PDF

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Publication number
EP3170654B1
EP3170654B1 EP16193695.0A EP16193695A EP3170654B1 EP 3170654 B1 EP3170654 B1 EP 3170654B1 EP 16193695 A EP16193695 A EP 16193695A EP 3170654 B1 EP3170654 B1 EP 3170654B1
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EP
European Patent Office
Prior art keywords
pressing
transmission device
force
imposed
carrier
Prior art date
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Active
Application number
EP16193695.0A
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German (de)
English (en)
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EP3170654A1 (fr
Inventor
Roland Menzel
Max Hälterlein
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DORST Technologies GmbH and Co KG
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DORST Technologies GmbH and Co KG
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Publication of EP3170654A1 publication Critical patent/EP3170654A1/fr
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    • 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
    • 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
    • B30B11/027—Particular press methods or systems

Definitions

  • the invention relates to a ceramic and / or metal powder pressing tool, to a press or to a method for setting up a ceramic and / or metal powder press.
  • Usual ceramic and / or metal powder presses have a pressing tool.
  • the pressing tool for pressing a powdery or granular material to be pressed from ceramic and / or metallic material has a die with a die opening and in each case at least one punch carrier arrangement on the top and bottom of the die.
  • the punch carrier arrangements each have a punch carrier with at least one press ram, the press rams leading into or being able to be guided into the die opening in order to press a material to be pressed in the die opening to form a molded part.
  • the punch carrier has a high weight, for example the punch carrier in a 70,000 kg press weighs approx. 300 kg.
  • the drive must therefore not only be able to apply the load force, but must also be dimensioned so large that the drive is the Stamp carrier acting weight force can carry.
  • the load should preferably be adjustable to the kilogram, which in relation to the maximum pressing force requires a complex and expensive drive construction.
  • the document EP-A-2361758 discloses a ceramic and / or metal powder press tool with the features of the preambles of claims 1 and 13.
  • the object of the invention is to provide a ceramic and / or metal powder press tool, a ceramic and / or metal powder press or a To propose a method for setting up a ceramic and / or metal powder press, which allow a structure that enables a finer control of the load force.
  • a ceramic and / or metal powder pressing tool is particularly preferred for a ceramic and / or metal powder press, the pressing tool for pressing a powdery or granular material to be pressed having a die with a die opening and at least one punch support arrangement on the top and bottom of the die , wherein the punch carrier arrangements each have at least one punch carrier with at least one press punch, wherein the press punches lead or can be guided into the die opening, wherein at least one of the punch carrier assemblies has a pressing force transmission device in the direction of a pressing force arranged adjacent to the punch carrier, with a separation area between the Press force transmission device and the punch carrier is formed, wherein a force-transmitting connection can be established with the punch carrier via the separating area for pressing and wherein the pressing force transmission device and the punch carrier can be spaced apart from one another after pressing in the separating area and wherein the pressing force transmission device and the punch carrier by means of a load reducing force transmitting load reduction device are coupled to one another.
  • the load reducing device By coupling the pressing force transmission device and the punch carrier, the load reducing device applies the load reducing force or, depending on the operating position, a momentary force from the load reducing device according to a preferred development over an entire pressing operation to these components.
  • the load reduction device is designed in such a way that the separation area has a maximum opening width.
  • a preferred opening width is adjustable and is, for example, a few millimeters, preferably less than one centimeter.
  • the stamp carrier can have rigidly attached and / or shaped components that are formed between the component actually acting as the stamp carrier and the separation area, such components being regarded as components of the stamp carrier and thus as part of the stamp carrier.
  • the pressing force transmission device can have components rigidly attached and / or shaped to it, which between the are actually designed as a component acting adjacent to the punch carrier and the separation area, such components being to be regarded as components of the pressing force transmission device and thus as part of the pressing force transmission device.
  • Loosely inserted components can also be arranged between the pressing force transmission device and the punch carrier, in which case a component of the load reduction device in particular encompasses such a loose component or guides it through it.
  • a component or a section of the pressing force transmission device and the punch carrier are each mounted on and / or between a guide rod, in particular in the manner of a so-called cross member, a cross beam, cross carrier or some other cross connection.
  • the pressing force transmission device and the punch carrier form a combination of two machine parts to form a temporarily fixed unit for the force transmission of the pressing force.
  • the load reducing device is designed to apply the load reducing force in the opposite direction to a direction facing the die or the die opening.
  • the separation area is formed above the die, so the load reducing force pulls the punch carrier upwards.
  • the load-reducing force acts in the opposite direction to a pressing force acting on a material to be pressed from above, in particular the load-reducing force thus acts in an upward direction.
  • the punch carrier is used for an entire press operation an upwardly directed load reduction force coupled to the pressing force transmission device.
  • the load reduction device has a coupling device via which a counterforce between the pressing force transmission device and the punch carrier can be applied temporarily, in particular at least temporarily, the counterforce being generated in a direction in the same direction as the load reduction force or in the direction of the pressing force is.
  • the pressing force transmission device and the punch carrier are thereby coupled to one another with a force generator or drive, wherein in the activated state a force that separates the pressing force transmission device and the punch carrier can be generated as a so-called counterforce.
  • a counterforce opposite to the lifting direction of the pressing force transmission device or, in particular, downwardly directed counterforce can be temporarily applied to the punch carrier or above it to its press punch.
  • the coupling device has a drive, in particular an electric motor, hydraulic or pneumatic drive, via which the counterforce can be applied.
  • such a drive is designed as an auxiliary force generating device for generating the counterforce.
  • the drive is preferably on the pressing force transmission device or on one with the pressing force transmission device uniformly adjustable component arranged that the drive can be adjusted together with the pressing force transmission device along a course line or direction to the pressing force or parallel thereto.
  • drive components of the coupling device are arranged in or above a component of the pressing force transmission device adjacent to the punch carrier.
  • Drive components are, for example, a hydraulic cylinder or an electric motor with a gearbox.
  • a drive linkage of the drive is at least partially guided in the direction of the punch carrier from or through a component adjacent to the punch carrier.
  • the actual force and movement generating drive and possibly a gear is formed or arranged in or above the component adjacent to the punch carrier.
  • the surcharge reducing device has an elastic element, in particular a spring, for applying the surcharge reducing force.
  • the load reducing force is, in particular, an elastic force such as can be applied, for example, by a spring, in particular a tension spring.
  • a load reducing device or spring is advantageously inserted between the pressing force transmission device and the punch carrier in such a way that these remain adjustable with respect to one another with the load reducing device but are nevertheless arranged firmly connected.
  • the elastic element is guided at least partially in or through a component of the pressing force transmission device adjacent to the punch carrier or past it and is fastened above, on or in the component.
  • the load-reducing force of the load-reducing device is set up in such a way that the load-reducing force corresponds to a weight force pulling the punch carrier down, in particular of the punch carrier or the force counteracting the punch carrier including the punch, which is in particular proportional to a distance (in particular an opening width) and / or proportional to a force rate of an elastic element, in particular a spring element, or within a tolerance thereof.
  • the load reducing force is / are in particular proportional to the distance and / or proportional to the force rate of the elastic element, in particular the spring element.
  • Another embodiment is such a pressing tool with at least one guide rod in which the pressing force transmission device and the punch carrier are mounted, the pressing force transmission device being able to be applied flatly to the punch carrier transversely to the direction of the pressing force.
  • the pressing force transmission device and the punch carrier are each in particular in the manner of a so-called Traverse, a crossbeam, crossbeam or some other cross connection mounted on and / or between a guide rod.
  • Another embodiment is such a pressing tool with at least one guide rod in which the pressing force transmission device and the punch carrier are mounted, with at least one of the pressing force transmission device and the punch carrier being mounted tilt-proof on the guide rod.
  • Tilt-proof means in particular that, on the one hand, the guide linkage, in particular a frame linkage, which runs parallel to the pressing force, and on the other hand, the punch carrier and / or the pressing force transmission device, no tilting occurs or no torques act.
  • Tilt-proof configurations offer high rigidity in the direction transverse to the counterforce.
  • Another embodiment is such a pressing tool with at least one guide rod, at least one of the pressing force transmission device and the punch carrier being mounted on the guide rod with a bearing section, the bearing section extending further in a direction parallel to the guide rod than a section extending transversely to the guide rod Section of the pressing force transmission device or the punch carrier.
  • the load reduction device and the coupling device are Provided several times in order to provide a symmetrical coupling and power transmission between the pressing force transmission device and the punch carrier.
  • a component of the pressing force transmission device separated from the punch carrier via the separating area is preferably mounted parallel to the punch carrier.
  • a component of the pressing force transmission device that is separate from the punch carrier and the punch carrier are preferably arranged in the manner of a punch carrier, in particular horizontally divided into two, both running transversely to the direction of the pressing force.
  • a ceramic and / or metal powder press with such a press tool and a press drive which is connected or can be connected to the press force transmission device for applying the press force to the press force transmission device is preferred.
  • the pressing force transmission device is designed as a component which, when the separation area is closed, transmits a pressing force acting on the upper side of the pressing force transmission device and transfers it from above to the punch carrier.
  • the pressing tool can also be formed from a large number of independent components, for example stamp carriers, stamps and pressing force transmission device, which are only assembled in the press itself to form the actual pressing tool.
  • a guide rod or frame for inserting a part of the components can be provided by an independent guide rod of a pressing tool and / or be formed by an independent guide rod of the press.
  • Such devices and methods make it possible to prevent the formation of cracks in powder compacts by demolding the compacts with a counter-holding force (load).
  • a finer adjustability of the load enables better results of the pressed parts.
  • permanent repeatability over a large number of pressing cycles is also made possible.
  • the load reducing force is set or selected by a distance such that the load reducing force corresponds to a weight of the punch carrier or the punch carrier including the punch pulling the punch carrier downward or is set up within a tolerance for this.
  • One embodiment is such a method that is carried out with such a pressing tool or in such a press.
  • a ceramic and / or metal powder pressing tool 2 is used in an exemplary ceramic and / or metal powder press 1.
  • the press 1 has a guide rod 3 which extends, in particular, in a vertical direction.
  • the press 1 has frame elements 4 which rigidly connect the guide rods 3 to one another.
  • the pressing tool 2 has a die 5 which has a die opening 6.
  • the pressing tool 2 has a punch carrier arrangement 7 above the die 5 and a corresponding further punch carrier arrangement below the die 5.
  • the punch carrier arrangements 7 in particular each have at least one press punch 9.
  • the punch carrier arrangements 7 are arranged relative to the die 5 in such a way that the press dies 9 are guided into the die opening 6 from below or from above or can be guided in and out. As a result, a powdery or granular pressed material 10 filled in the die opening 6 can be pressed into a pressed part 24 or molded part.
  • At least one, usually two or more of the components of the die 5 and the top or bottom side of the punch carrier arrangements 7 can be adjusted relative to one another along or parallel to a direction of a pressing force F1.
  • one of these components, die 5 and punch carrier arrangements 7, can be rigidly or stationary mounted in the guide rod 3, while the other two or all of these components from the group of the die 5 and the punch carrier arrangements 7 can be mounted in the guide rod 3 so as to be adjustable relative to one another.
  • the press drive 11 is arranged rigidly on the upper frame element 4, for example.
  • the press drive 11 can be of any desired design which applies a sufficiently large pressing force F1 for pressing a pressed product 10 made of ceramic and / or more metallic material.
  • a hydraulic press drive 11 is sketched as a preferred embodiment. Another, more complex configuration of the press drive 11 can optionally also be provided which, in addition to the application of a large pressing force, also enables the components coupled to it to be adjusted quickly.
  • a piston or drive rod 22 leads from the press drive 11 to transmit the press force F1 or to adjust the components attached to it back and forth in the direction of the punch carrier 8.
  • a press force transmission device 12 is connected in particular has a component 13 adjacent to the stamp carrier.
  • the component 13 adjacent to the punch carrier can be adjusted together with the drive rod 22 and is designed to transmit the pressing force F1.
  • the drive rod 22 can be part of the pressing force transmission device 12 and / or the component 13 adjacent to the punch carrier.
  • the pressing force transmission device 12 and / or the Component adjacent to the punch carrier can also be part of the punch carrier arrangement 7.
  • a separating area 14 is formed which does not provide any connection, in particular no fixed, rigid connection between the component 13 adjacent to the punch carrier and the punch carrier 8.
  • the separation area 14 is designed in such a way that the separation area 14 is closed when the component 13 adjacent to the punch carrier is applied to the punch carrier 8 and a pressing force F1 acting via the component 13 adjacent to the punch carrier is applied to the punch carrier 8 and, above it, to its at least one press punch 9 is transmitted.
  • the component 13 adjacent to the punch carrier lifts off the punch carrier 8 in the region of the separating area 14.
  • the pressing force transmission device 12 and the punch carrier 8 can thus be placed against one another in the region of the separating region 14 and can be spaced from one another again.
  • the die opening 6 is first filled with material to be pressed 10 and then the top-side arrangement with the component 13 adjacent to the die carrier and the die carrier 8 is moved in the direction of the die 5, so that the at least one press ram 9 dips into the die opening 6 and is the pressing force F1 the pressed material 10 is pressed.
  • the coupling device 17 is switched to a powerless state and the pressing force transmission device 12 with the component 13 adjacent to the punch carrier is raised, for example by being moved back by means of the pressing drive 11 to a selected or maximum opening width a of the separation area 14. If the pressing force transmission device 12 is raised further than the opening width a, then the punch carrier 8 is lifted off the pressing part together with the pressing force transmission device 12. Instead of raising these components or in addition to them, the die 5, for example, can also be lowered accordingly. The separating region 14 can then be closed again by applying a force F2.
  • the load reduction device 15 is formed by an elastic element 16 such as a spring.
  • the elastic element 16 or the load reducing device 15 is dimensioned in such a way that the load reducing force F4, which adjusts the punch carrier 8 in the direction of the component 13 adjacent to the punch carrier, at a defined opening width a is approximately the same as a weight F3 that acts on the punch carrier 8 .
  • the arrangement also has a coupling device 17.
  • the coupling device 17 is designed to exert a counterforce F2 in or parallel to the direction of the pressing force F1 on the punch carrier 8 and above it on the at least one press punch 9.
  • the coupling device 17 is formed by a drive 18, which can in particular be a hydraulic drive.
  • a drive 18 can in particular be a hydraulic drive.
  • other suitable drives in particular pneumatic and / or electromechanical drives, can also be used.
  • the drive 18 is dimensioned so that the required counterforce F2 can be exerted on the punch carrier 8.
  • the drive 18 is on the component 13 adjacent to the punch carrier or on another component of the pressing force transmission device 12 arranged and together with the pressing force transmission device 12 adjustable.
  • the coupling device 17 or in particular its drive can also be arranged elsewhere in the press 1 or the pressing tool 2, such as on a frame element 4, in which case larger adjustment distances are required for drive elements.
  • the drive 18 has a drive rod or a drive rod 19 which extends in the direction of the punch carrier 8 and is fastened to the punch carrier 8 or can be applied to it in order to transmit the counterforce F2 to the punch carrier 8.
  • the drive 18 with its actual drive components is preferably arranged in or above the component 13 adjacent to the punch carrier.
  • a space between the component 13 adjacent to the stamp carrier and the stamp carrier 8 is advantageously kept small.
  • drive lines 20 lead to this, in the case of a hydraulic drive, hydraulic lines.
  • the arrangement is preferably designed with bearing sections 21 which design a mounting of the punch carrier 8 or the component 13 adjacent to the punch carrier on the guide rod 3 such that the punch carrier 8 and the component 13 adjacent to the punch carrier are each mounted on the guide rod 3 in a tilt-proof manner.
  • bearing sections 21 design a mounting of the punch carrier 8 or the component 13 adjacent to the punch carrier on the guide rod 3 such that the punch carrier 8 and the component 13 adjacent to the punch carrier are each mounted on the guide rod 3 in a tilt-proof manner.
  • bearing sections 21 extend into a space between the punch carrier 8 and the component 13 adjacent to the punch carrier, which is also mounted on the guide rod 3, there is an intermediate component 23 between the component 13 adjacent to the punch carrier and the punch carrier 8 arranged to transmit the pressing force F1.
  • the intermediate component 23 is fastened on the underside to the component 13 adjacent to the punch carrier and is designed as a component protruding from the underside of the component 13 adjacent to the punch carrier.
  • the separating area 14 is located between the intermediate component 23 and the top of the stamp carrier 8.
  • the intermediate component is attached to the stamp carrier 8, for example, or is part of it and extends upwards in the direction of the one adjacent to the stamp carrier Component 13 is designed to extend, wherein in such a case the separation region extends above between the intermediate component and the component adjacent to the punch carrier.
  • such an intermediate component can also be inserted quite loosely between the component 13 adjacent to the punch carrier and the punch carrier 8, so that separating areas may form above and below the intermediate component, since the intermediate component is only used when the components are brought together to transfer the
  • Pressing force F1 is used, while the load reduction device 15 is designed to limit the opening width a of the separation area and to lift or lift the punch carrier 8.
  • Fig. 1 shows an arrangement with a closed separating area 14 during a movement of the components with the ram 9 and the die opening 10 towards one another.
  • Fig. 2 shows a modified embodiment.
  • the distance between the component 13 adjacent to the punch carrier and the punch carrier 8 is so small that the separation area 14 is formed directly between these two components.
  • the component 13 which is adjacent to the punch carrier is therefore in direct contact with the punch carrier 8 in order to transmit the pressing force F1.
  • the load reducing device 15 is connected to the elastic element 16 and the punch carrier 8 together with the component 13 adjacent to the punch carrier with the coupling device. Then this is lifted off the pressing part 24 together with the pressing force transmission device 12 or adjusted relative to the pressing part 24.
  • a passage opening in or through the component 13 adjacent to the punch carrier leads to its upper side.
  • the elastic element 16 correspondingly leads from the surface of the stamp carrier 8 through the component 13 adjacent to the stamp carrier to a fastening arrangement, for example a housing, which on the top of the Component 13 adjacent to the punch carrier is firmly connected to this or to another component of the pressing force transmission device 12.
  • a method for assembling the press 1 or the pressing tool 2 is preferably designed in such a way that during the assembly of the punch carrier 8 with the at least one punch 9 and the component 13 adjacent to the punch carrier, the or part of the load reducing device 15 is used between them.
  • the load reduction device 15 is dimensioned or selected in such a way that the path-dependent load reduction force F4 of the load reduction device 15 at a certain opening width a is approximately the same as a weight F3 which acts on the punch carrier 8.
  • the press material 10 is first introduced into the die opening 6 and then the at least one press ram 9 is guided into the die opening 6 by means of the press drive 11, the press force transmission device 12 with the component 13 adjacent to the die carrier and by means of the die carrier 8.
  • the pressing force transmission device 12 with the component 13 adjacent to the punch carrier is lifted or adjusted relative to the pressing part 24, the punch carrier 8 with the press punch 9 remaining in the pressing position.
  • a desired or retained load is applied to the pressed material 10 or the pressed body. As long as the load is to act, the pressing force transmission device 12 and the component 13 adjacent to the stamp carrier is raised only so little that the opening width a of the separating area 14 is not exceeded.
  • the coupling device 17 is also returned to a basic position with retracted drive linkage or retracted drive rod 19.
  • Raising various components with a stationary die 5 is described above.
  • there is a relative movement in particular a relative movement in which the die 5 is lowered or in which the named components are raised and the die is also lowered.
  • the figures show, for example, an arrangement in which the pressing force transmission device 12 with the component 13 adjacent to the punch carrier and the punch carrier 8 and the die 5 are arranged directly in the guide rod 3 of the press 1.
  • such an arrangement can also be arranged in a separate guide rod, which is part of an adapter that can be inserted into a press 1.
  • the embodiment of the press drive 11 sketched in the figures on the frame element 4 is replaced by a coupling which can be coupled to a mating coupling of the press when the adapter is inserted into the press.
  • such a guide linkage 13 can be designed as a closed frame arrangement with frame elements 4 running transversely on the top and bottom in such a way that a frictional connection between the top and bottom of the die 5 and force-transmitting components that are adjustable relative to the die can be set up.
  • Arrangements can also be designed with such a separating area which is set up below the die in the area of a punch carrier arrangement located below the die.
  • a fixed die can be used.
  • the auxiliary force generating device and the coupling device can also be combined and / or arranged or formed in a structural component.
  • the setting of the load reducing force F4 is carried out by the opening width or the distance a.
  • the load reducing force F4 results from this distance a and the spring characteristic of the elastic element 16
  • a surcharge is understood in particular to be the effective weight force that results from the weight of the press ram 9 and the weight of the die carrier 8, reduced by the surcharge reducing force F4.
  • the possibility of a load reducing force F4 is enabled or switched off with this counterforce F2.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Powder Metallurgy (AREA)

Claims (15)

  1. Outil de pressage de poudre de céramique et/ou de métal (2) destiné à une presse de poudre de céramique et/ou de métal (1), l'outil de pressage (2) destiné à presser un matériau à presser pulvérulent ou granulaire (10) comportant :
    - une matrice (5) munie d'une ouverture de matrice (6) et
    - au moins un ensemble de supports de poinçon (7) du côté supérieur et du côté inférieur de la matrice (5), les ensembles de supports de poinçon (7) comportant chacun au moins un support de poinçon (8) muni chacun d'au moins un poinçon de pressage (9), les poinçons de pressage (9) étant introduits ou pouvant être introduits dans l'ouverture de matrice (6),
    - au moins l'ensemble de supports de poinçon (7) disposé du côté supérieur de la matrice (5) comportant un dispositif de transmission de force de pression (12) dans la direction d'une force de pression (F1), lequel dispositif est adjacent au support de poinçon (8),
    - une zone de séparation (14) étant formée entre le dispositif de transmission de force de pression (12) et le support de poinçon (8),
    - une liaison de transmission de force avec le support de poinçon (8) pouvant être établie par le biais de la zone de séparation (14) pour effectuer le pressage et le dispositif de transmission de force de pression (12) et le support de poinçon (8) pouvant être espacés l'un de l'autre après avoir effectué le pressage dans la zone de séparation (14),
    - le dispositif de transmission de force de pression (12) et le support de poinçon (8) étant accouplés l'un à l'autre au moyen d'un dispositif d'accouplement (17) qui transmet une force antagoniste (F2),
    - caractérisé en ce que
    le dispositif de transmission de force de pression (12) et le support de poinçon (8) de l'ensemble de supports de poinçon (7) disposé du côté supérieur de la matrice (5) sont accouplés l'un à l'autre au moyen d'un dispositif de réduction de charge (15) qui transmet une force de réduction de charge (F4) et
    - en ce que le dispositif de réduction de charge (15) est construit de manière à appliquer la force de réduction de charge (F4) dans un sens opposé au sens dirigé vers la matrice (5) ou à l'ouverture de matrice (6) .
  2. Outil de pressage (2) selon la revendication 1, le dispositif d'accouplement (17) comportant le dispositif de réduction de charge (15) permettant d'appliquer temporairement, en particulier au moins temporairement, la force de réduction de charge (F4) entre le dispositif de transmission de force de pression (12) et le support de poinçon (8), la force de réduction de charge (F4) pouvant être générée dans un sens identique à celui de la force antagoniste (F2).
  3. Outil de pressage (2) selon l'une des revendications précédentes, le dispositif de réduction de charge (15) comportant un élément élastique (16), notamment un ressort, pour appliquer la force de réduction de charge (F4).
  4. Outil de pressage (2) selon la revendication 3, l'élément élastique (16) étant guidé au moins partiellement jusque dans ou à travers un composant (13) du dispositif de transmission de force de pression (12) qui est adjacent au support de poinçon (8) ou devant celui-ci et étant fixé au-dessus du composant (13) ou sur ou dans celui-ci.
  5. Outil de pressage (2) selon l'une des revendications précédentes, la force de réduction de charge (F4) du dispositif de réduction de charge (15) étant adaptée de telle sorte que la force de réduction de charge (F4) corresponde à une force qui s'oppose à la force de poids (F3) tirant le support de poinçon (8) vers le bas et qui est proportionnelle à une distance (a) et proportionnelle à la quantité de mouvement de l'élément à ressort (16).
  6. Outil de pressage (2) selon la revendication 5, la zone de séparation (14) étant formée au-dessus de la matrice, de sorte que la force de réduction de charge (F4) tire le support de poinçon vers le haut.
  7. Outil de pressage (2) selon la revendication 1, le dispositif de réduction de charge (15) étant conçu de telle sorte que la zone de séparation (14) présente une largeur d'ouverture maximale (a).
  8. Outil de pressage (2) selon l'une des revendications 3 à 7, des composants d'entraînement du dispositif d'accouplement (17) étant disposés dans ou au-dessus d'un composant du dispositif de transmission de force de pression qui est adjacent au support de poinçon.
  9. Outil de pressage (2) selon l'une des revendications précédentes, comprenant au moins une tige de guidage (3) dans laquelle sont montés le dispositif de transmission de force de pression (12) et le support de poinçon (8), le dispositif de transmission de force de pression (12) pouvant être appliqué à plat sur le support de poinçon (8) transversalement à la direction de la force de pression (F1).
  10. Outil de pressage (2) selon l'une des revendications précédentes, comprenant au moins une tige de guidage (3) dans laquelle sont montés le dispositif de transmission de force de pression (12) et le support de poinçon (8), l'un au moins de l'au moins un dispositif de transmission de force de pression (12) et/ou du support de poinçon (8) étant monté sur la tige de guidage de manière à ne pas pouvoir basculer.
  11. Outil de pressage (2) selon l'une des revendications précédentes, en particulier selon la revendication 10, comprenant au moins une/la tige de guidage (3), l'un au moins de l'au moins un dispositif de transmission de force de pression (12) et du support de poinçon (8) étant monté sur la tige de guidage avec une partie formant palier (21), la partie formant palier (21) s'étendant davantage dans une direction parallèle à la tige de guidage (3) qu'une partie du dispositif de transmission de force de pression (12) ou du support de poinçon (8) qui s'étend transversalement à la tige de guidage (3).
  12. Presse de poudre de céramique et/ou de métal (1) comprenant
    - un outil de pressage (2) selon l'une quelconque des revendications précédentes et
    - un entraînement de presse (11) qui est relié ou peut être relié au dispositif de transmission de force de pression (12) pour appliquer la force de pression (F1) au dispositif de transmission de force de pression (12) .
  13. Procédé de mise en œuvre d'une presse à poudre de céramique et/ou de métal (1) pour presser un matériau à presser (10), procédé dans lequel on dispose dans la presse (1)
    - une matrice (5) munie d'une ouverture de matrice (6) et au moins un ensemble de supports de poinçon (7) du côté supérieur et du côté inférieur de la matrice (5), les ensembles de supports de poinçon (7) comportant chacun au moins un support de poinçon (8) muni chacun d'au moins un poinçon de pressage (9), les poinçons de pressage (9) étant introduits ou pouvant être introduits dans l'ouverture de matrice (6), l'un au moins des ensembles de supports de poinçon (7) comportant un dispositif de transmission de force de pression (12) qui est disposé de manière adjacente au support de poinçon (8) par référence à la direction d'une force de pression (F1) et une zone de séparation (14) étant formée entre le dispositif de transmission de force de pression (12) et le support de poinçon (8),
    - l'ensemble étant actionné de manière à ce qu'une liaison de transmission de force puisse être établie avec le support de poinçon (8) par le biais de la zone de séparation (14) pour effectuer le pressage et le dispositif de transmission de force de pression (12) et le support de poinçon (8) étant espacés l'un de l'autre après le pressage dans la zone de séparation (14) et
    - le dispositif de transmission de force de pression (12) et le support de poinçon (8) étant accouplés l'un à l'autre au moyen d'un dispositif d'accouplement (17) transmettant une force antagoniste (F2) et le dispositif d'accouplement (17) appliquant la force antagoniste (F2) avant le pressage, en particulier par un pressage complet,
    caractérisé en ce que
    le dispositif de transmission de force de pression (12) disposé du côté supérieur de la matrice (5) et le support de poinçon (8) sont accouplés l'un à l'autre au moyen d'un dispositif de réduction de charge (15) transmettant une force de réduction de charge (F4), et le dispositif de réduction de charge (15) applique la force de réduction de charge (F4) par un pressage complet,
    - le dispositif de réduction de charge (15) appliquant la force de réduction de charge (F4) dans un sens opposé au sens dirigé vers la matrice (5) ou à l'ouverture de matrice (6).
  14. Procédé selon la revendication 13, dans lequel la force de réduction de charge (F4) est réglée ou sélectionnée de telle sorte que la force de réduction de charge (F4) agissant vers le haut corresponde, pour une largeur d'ouverture définie (a) de la zone de séparation (14), à une force de poids (F3), tirant le support de poinçon (8) vers le bas, du support de poinçon (8) ou du support de timbre (8) incluant le poinçon de pressage (9).
  15. Procédé selon l'une des revendications 13 et 14, qui est mis en œuvre avec un outil de pressage selon l'une des revendications 1 à 11 ou dans une presse selon la revendication 12.
EP16193695.0A 2015-10-16 2016-10-13 Outil de presse en céramique et/ou en poudre métallique, presse et procédé de montage d'un dispositif de compression de poudre métallique et/ou de céramique Active EP3170654B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015117663.7A DE102015117663A1 (de) 2015-10-16 2015-10-16 Keramik- und/oder metallpulver-presswerkzeug, presse bzw. verfahren zum einrichten einer keramik- und/oder metallpulver-presse

Publications (2)

Publication Number Publication Date
EP3170654A1 EP3170654A1 (fr) 2017-05-24
EP3170654B1 true EP3170654B1 (fr) 2021-01-20

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EP16193695.0A Active EP3170654B1 (fr) 2015-10-16 2016-10-13 Outil de presse en céramique et/ou en poudre métallique, presse et procédé de montage d'un dispositif de compression de poudre métallique et/ou de céramique

Country Status (2)

Country Link
EP (1) EP3170654B1 (fr)
DE (1) DE102015117663A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021110771A1 (de) 2021-04-27 2022-10-27 Dorst Technologies Gmbh & Co. Kg Pulver-Pressen-Herrichtungsverfahren

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921355A (en) * 1954-11-10 1960-01-19 Buffalo Pottery Inc Method and means for molding
US3191232A (en) * 1961-12-07 1965-06-29 Haller John Hydraulic compacting press
US4260346A (en) * 1979-10-09 1981-04-07 Anderson Jr Raymond B Press assembly for powder material
JP3926556B2 (ja) * 2000-11-24 2007-06-06 日立粉末冶金株式会社 粉末成形装置
DE10142773C1 (de) * 2001-08-31 2003-03-06 Fette Wilhelm Gmbh Hydraulische Presse zum Pressen von Metallpulver
DE102005052748A1 (de) * 2005-11-04 2007-05-10 Dorst Technologies Gmbh & Co. Kg Pressenanordnung und Verfahren zum Pressen von Pressteilen
DE102008035301B3 (de) * 2008-07-29 2010-03-25 Fette Gmbh Pulverpresse
DE102010008986A1 (de) * 2010-02-24 2011-08-25 Dorst Technologies GmbH & Co. KG, 82431 Verfahren zur Pressparameteranpassung einer Keramik- oder Metallpulverpresse und Keramik- oder Metallpulverpresse zum Durchführen des Verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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EP3170654A1 (fr) 2017-05-24
DE102015117663A1 (de) 2017-04-20

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