EP1422050A2 - Dispositif pour fabriquer des articles pressés conservant leur dimension à partir de matières pulvérulentes - Google Patents

Dispositif pour fabriquer des articles pressés conservant leur dimension à partir de matières pulvérulentes Download PDF

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Publication number
EP1422050A2
EP1422050A2 EP03026748A EP03026748A EP1422050A2 EP 1422050 A2 EP1422050 A2 EP 1422050A2 EP 03026748 A EP03026748 A EP 03026748A EP 03026748 A EP03026748 A EP 03026748A EP 1422050 A2 EP1422050 A2 EP 1422050A2
Authority
EP
European Patent Office
Prior art keywords
support
stamp
press
stamp carrier
height adjustment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03026748A
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German (de)
English (en)
Other versions
EP1422050A3 (fr
EP1422050B1 (fr
Inventor
Michael Thomas Silbermann
Johann Meyer
Walter Rau
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DORST Technologies GmbH and Co KG
Original Assignee
DORST Technologies GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by DORST Technologies GmbH and Co KG filed Critical DORST Technologies GmbH and Co KG
Publication of EP1422050A2 publication Critical patent/EP1422050A2/fr
Publication of EP1422050A3 publication Critical patent/EP1422050A3/fr
Application granted granted Critical
Publication of EP1422050B1 publication Critical patent/EP1422050B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/058—Undercut

Definitions

  • the invention relates to a press device central punch support for pressing more dimensionally Compacts of a substantially powdery material with the generic features of claim 1.
  • Such presses are generally used for pressing powder or granules made of iron, plastic, hard metal, basic ceramic components or the like to form compacts, e.g. B. gears or molded parts. Due to the high specific pressures of 30 - 100 kN / cm 2 and more, very high stability of the press device is required.
  • a modular press is known from DE 31 42 126 C2 from the actual press to apply the Main pressing force and a press device, which can be inserted into the actual press as an adapter can.
  • the press device that can be used consists of a Tool rack that has an upper and a lower Connection device between the two press bears Press is coupled.
  • adapter-like press device from a framework from pull rods used to guide a variety of plates, Stamp carriers and a die plate between the also arranged or stored on the framework Connection facilities exist.
  • a base plate in which hydraulic devices for relative movement of individuals trained as stamp carriers Panels are arranged with a bearing approach in the actual press stored.
  • the other plates are movable in the framework relative to this base plate stored.
  • the die holding plate is over the framework with the lower connecting device of the adapter rigid connected and opposite the upper connecting device of the Adapters slidably arranged in the framework.
  • the single ones Stamp carriers are hydraulic compared to the base plate movable so that it is between a filling position in which the Die opening of the die holder plate can be filled with powder and a final press position, in which the powder with the help is pressed from press dies to a compact, are movable.
  • the stamps for pressing the powder sit on the respective stamp carriers. Are in the press end position the individual stamp carriers are supported on fixed stops.
  • Both the piston / cylinder devices for hydraulic Driving the individual stamp carriers as well Fixed stops are from the respective central openings of the individual stamp carrier spaced in the edge area of the Stamp carrier arranged.
  • the central openings formed in the individual stamp carriers such that each the stamp on one of the die holding plate sit on the distant stamp carrier by the openings of the closer to the die holding plate located stamp plates can be passed.
  • On one in the Press is firmly supported base plate of the tool frame a movably supported framework made of tie rods provided which the lower clutch plate with a Rigidly connect the die holding plate.
  • stamp carrier movable into the filling and pressing positions.
  • the stamp carrier for improvement the leadership is suggested to use the stamp carrier as pots form, which on cylindrical surfaces relative to Base plate are guided. Also lie with this arrangement the stamp carrier in the final press position on fixed stops on.
  • Presses for producing dimensionally stable are generally known Press body also from DE 42 27 640 A1.
  • the object of the invention is to provide a press Manufacture dimensionally stable compacts from essentially to improve powdery material such that a Framework with the various components for installation in one Press for various requirements easily can be assembled and also with a view to the Support devices for the stamp carrier an improved Arrangement is provided.
  • a press device for is advantageous Manufacture dimensionally stable compacts from essentially powdery or granular material, in particular made of iron, plastic, hard metal or ceramic components, with a framework over a lower one Connection device with a lower press frame part a press is connectable like an adapter, one Matrix holding plate, which is arranged in the framework, one Base body, which is arranged in the framework, the Die holding plate and the base body relative to each other are slidably disposed in the framework, one Large number of stamp carriers, at least some of which on Framework relative to the die holding plate and relative to the Base body in the direction of a running in the pressing direction central axis is slidably mounted between them, and support devices which the stamp carrier in Support the press end position relative to the base body if the Support devices between the body and the Stamp carriers are arranged such that at least one of the supports by another of the Support devices supported against the base body is.
  • the support such an arrangement in the framework, which in a Press is clamped and a die holding plate and one Base body which is displaceable relative to each other enables a stable and modular structure.
  • a press device is advantageous in which at least one of the supports around the central axis is arranged and a free space around the axis Performing stamp carriers and stamps leaves which the basic body or below the respectively assigned Support devices arranged support devices assigned. At least part of the support devices is therefore expedient about the central axis, which extends through the press device in the pressing direction, arranged and has a free space for stamp carriers and Stamp on which are arranged below Support devices are assigned.
  • Such a structure allows an arrangement for the central support of the Stamp carrier seated stamp in the press end position almost in line of force. This applies to each of the central axis nearby stamp, stamp carrier and support devices and also for the outside arranged stamp, stamp carrier and Support devices. With the whole arrangement it follows thus level support from the base plate, being placed on a first support device Stamp carrier and stamps thereon from it be worn and the first support also carries another support.
  • a press device is advantageous in which at least stamp carrier placed on one of the support devices and stamps thereon from this support device be worn and the support also a carries further support, being on the further Support device arranged a stamp carrier and stamp and are supported, the support device being the further Support device in press end position approximately in Force line supported centrally.
  • Stamp carrier and stamps advantageously in similar arrangement arranged one above the other Support devices with stamp carriers and stamps arranged.
  • the stamp carrier and stamp sit appropriately on an inside support surface on the assigned Support device while another support device on the outside support surface of the support device can be placed.
  • the line of force thereby leads both of stamps over the stamp carrier more or less straight into the associated support device.
  • the line of force leads when placed one above the other Support devices further in a below Support device and thus continues straight in the direction the pressing force, so that shear forces and the like are avoided can be.
  • At least part of the Support devices on a support device element which from the side of the support device in the direction protrudes toward the central axis from the support device or protrudes and carries an assigned stamp carrier.
  • the line of force is moved from the stamp to the Stamp carrier, which sits on the support element, from the straight line of force in the pressing direction through the Support device in the direction of the interior central axis shifted.
  • this shift is so low that it is almost straight Force line in press end position can still be accepted can.
  • stamp carriers are advantageously or at least one of these with a stamp carrier height adjustment device on the support device height-adjustable put on or fastened.
  • the The height is adjusted in the direction of the central axis relative to the support device which this Supports the stamp carrier.
  • a particularly simple one Stamp carrier height adjustment device has an im Essentially cylindrical structure.
  • a relative to supporting support device stationary Support device adjustment element and a relative to Stamp carrier are fixed lower stamp carrier element advantageously one inside the other, the mutually facing walls have threads, which interlock.
  • the relative height adjustment of Screwing the stamp carrier and support device is sufficient of the prop adjuster relative to that Stamp carrier element around the central axis.
  • the support device can advantageously, in particular in connection with the stamp carrier height adjustment device be dimensioned so that dimensioned as a fixed stop for the press end position and are trained.
  • the support device advantageously has a support device element, in particular the support device element projecting or projecting away from the central axis as a stop element with corresponding dimensions, in order to form a counter-stop in the filling or demolding position for a height-limiting stop element of a stamp carrier of a lower-arranged support device.
  • the support device element thus assumes various functions as a fixed stop, as a support element for the stamp carrier above the support device and at the same time as a counterstop for the height-limiting stop element of a stamp carrier arranged at a lower level.
  • a press device is advantageous for this, in which at least one of the support devices, in particular with a protruding support device element, is dimensioned and designed as a stop element and, in the filling or demolding position, forms a counter-stop for a height-limiting stop element of a stamp carrier of the base body or a lower-arranged support device.
  • a height-limiting stop element is expediently arranged on the stamp carrier in a height-adjustable manner in the direction of the central axis relative to the stamp carrier, so that simple adaptations to changed amounts of powder and the like are possible.
  • a cylindrical structure around the central axis is also suitable for the height limiting stop element, the height limiting stop element having an inner cylinder circumference with an internal thread, which engages in a corresponding external thread on the outer circumference of the associated stamp carrier.
  • a height adjustment is made possible by simply screwing the stamp carrier and the height limiting stop element arranged around it in relation to the stamp carrier in the same direction as the height limiting stop element.
  • a height adjustment drive for the stamp carrier is advantageously moved in the same direction as the stamp carrier when adjusting relative to the support device when the lifting heights are required accordingly.
  • a hand crank or a motor is used to operate the height adjustment drive.
  • the height adjustment of the height adjustment drive together with the height adjustment of the stamp carrier or of the height limiting stop element is carried out by appropriate choice of pitch and, if necessary, reversed slope gradients of different gear elements in such a way that the height adjusting drive is raised to the same extent as the stamp carrier or the height limiting stop element.
  • a press device is advantageous in which the height adjustment drive drives a first threaded element, in particular a threaded spindle, which moves the height adjustment drive relative to the support device or relative to the stamp carrier, and has a toothed wheel fastened to the threaded element and rotating along the longitudinal axis of the threaded element, the toothed wheel or one or more Intermediate toothed gear rotates in a toothing on the outer circumference of the stamp carrier height adjustment device or on the outer circumference of the height limiting stop element.
  • a first threaded element in particular a threaded spindle, which moves the height adjustment drive relative to the support device or relative to the stamp carrier, and has a toothed wheel fastened to the threaded element and rotating along the longitudinal axis of the threaded element, the toothed wheel or one or more Intermediate toothed gear rotates in a toothing on the outer circumference of the stamp carrier height adjustment device or on the outer circumference of the height limiting stop element.
  • the height adjustment drive with different Threaded elements and intermeshing gears building is particularly advantageous if that Height limit stop element or the stamp carrier height adjustment device on its outer circumference Have teeth in which a rotating toothed wheel of the height adjustment drive engages.
  • a press device in which the Height adjustment drive via at least one threaded hole and / or mounting hole without thread in it modular is designed to be used in one another
  • an actual position sensor to determine one relative actual position between at least one of the Support devices and one supported by it Stamp carrier and the base body allows a special simple modular structure.
  • An actual position sensor can at simple embodiments are used to create a Operational engineer to warn in case of malposition.
  • the use of such a Actual position sensor but also a controlled control to Movements of different stamp carriers relative to each other and / or relative to the base body as needed for one Adjust target curve.
  • one Transfer of the basic principle to presses with hydraulic Regulation of the pressing process is feasible.
  • a clamping device in particular Clamping plate are provided, which between a upper support device and the die holding plate is arranged.
  • the tensioning device is used for tensioning the supporting devices that support each other against the body.
  • a press device in which at least one of the support devices one Support device support section for supporting a higher support device or one placed in between Support device intermediate piece, wherein the Support surface of the support support section arranged lower than a stamp support surface is.
  • a press device in which two partially interlocking one above the other Support devices are arranged one inside the other in such a way that a gap between the laterally adjacent surfaces is formed over the residual powder down and to the side is dissipated at the same time.
  • This is particularly advantageous Dimension the side walls of the Support devices such that between other Support wall devices, stamp carriers or Stamp a gap that remains for removal excess powder can be used.
  • the gap is advantageously formed with suitable dimensions a powder cone so that later falling powder obliquely is discharged laterally downwards.
  • the individual stamp carriers are also facing Synchronization rods have a modular structure.
  • a press device with at least one is advantageous Sync bar to synchronize one rectified and equidistant movement of a upper press block element opposite at least one of the Stamp carrier, the synchronization rod through Synchronization bar through openings in modular built-up stamp carrier plates, which laterally from the protrude above the stamp carriers, passes, and a synchro rod stop member has to the synchronization rod a selected stamp carrier plate in the area around the Sync bar grommet around support.
  • Synchronizing bars are used to move one upper press block with the movement of one or more Stamp carrier to synchronize to the powder contact top plate with the one filled in the die opening Powder the powder chamber formed synchronously with the powder lower what is commonly referred to as powder transportation becomes.
  • the Stamp carriers or in laterally from the stamp carriers protruding stamp carrier plates synchronization rod through openings trained so one of that upper press block lowering synchronization rod in principle from above through all stamp carrier plates can be passed through.
  • the synchronization bars are equipped with a synchronizing rod stop element provided which has a larger circumference than that corresponding synchronization rod through openings underneath.
  • Such is advantageously Flange or synchro rod stop element shoe-like, so it's the Sync bar on the surface around the Sync bar grommet one supports selected stamp carrier plate around and thereby synchronized.
  • stamp carriers are usually by means of piston / cylinder arrangements relative to the body in filling and Press positions movable.
  • a press device for pressing dimensionally stable compacts made of powdery or granular material, in particular from iron powder, ceramic powder or the like, from a variety of assemblies.
  • a lower press block which by a base plate 0, Stamp carrier 1, 2, 3 and 4, a die holding plate 5 and a lower connector 71 is formed, and an upper press block 6, one above the other in one Framework composed of tie rods 70, 73 and the like are.
  • the upper press block 6 can preferably Have comparable assemblies arranged in mirror image like the lower press block.
  • the upper press block 6 can e.g. through an upper connecting device, an upper one Base plate and stamp carrier are formed.
  • the base plate 0 can more generally as a base body be designated and serves to include among other things Hydraulic piston-cylinder assemblies 72 that serve the Stamp carrier 1 - 4 arranged above relative to the Base plate 0 to be adjusted.
  • the stamp carriers 1 - 4 exist essentially of two components, one each actual stamp carrier 1 - 4 and one on the side of this protruding stamp carrier plate 1a - 4a.
  • the Stamp carrier plates have tie rod through openings 70c, through which the tie rods 70 are passed, so that the individual stamp carrier plates 1a - 4a together with the stamp carriers 1 - 4 in the pressing direction along the Drawbars 70 can be moved.
  • stamp carrier plates 1a - 4a piston rod through openings 72b for the passage of the cylinder-piston rods 72a on which of the hydraulic piston / cylinder assemblies 72 from the base plate 0 through the cylinder-piston rod through openings 72b to the Stamp carrier plate 2a, 3a, 4a are brought out, which with Relative to the corresponding cylinder-piston arrangement to be adjusted to the base plate 0.
  • the corresponding piston carrier plate 2a, 4a are the cylinder-piston rods 72a fastened or supported in this way created that the corresponding stamp carrier plate 2a, 4a with the help of the assigned cylinder-piston rod 72a can be lifted up.
  • a particularly modular system with a multitude identically constructed stamp carrier plates 2a, 3a, 4a enable, in each of which cylinder piston rod bushings 72b uniform, for any Arrangement of the stamp carrier plates 2a - 4a within the Adapters are provided, one embodiment preferred, at the on the cylinder-piston rod 72a A cylinder-piston rod stop 72c is arranged on the upper side is whose lateral circumference is larger than the diameter of the Cylinder-piston rod through opening 72b is such that he the assigned stamp carrier plate 4a in the area around the associated cylinder-piston rod through opening 72b attached around from below.
  • the stamp carrier plates have central openings 1e, 2e Pass through the centrally arranged about the axis 74 Assemblies, in particular stamps, stamp carriers and Support devices.
  • the lower connecting device 71 has one Coupling device for coupling to a lower one Press bears on a hydraulic press or the like.
  • the upper press block 6 has a corresponding upper one Connection device with a coupling device for Connect to an upper press bear.
  • the lower connection device 71 After installing the press device or adapter 7 in a press is the lower connection device 71 with the lower press bears coupled to the press. About the Drawbars 70, preferably four through four Lead corner areas of the lower connecting device 71 is above the lower connecting device 71 Base plate 0 arranged.
  • An alternative is of course possible also the use of more or less, e.g. only one or two tie rods.
  • the base plate has 0 a rectangular outer circumference, with the four tie rods 70 through corresponding openings in their corner areas to lead.
  • the base plate 0 has one on two sides Storage approach 51 with which the base plate 0 after Installation of the adapter 7 with the main press cylinder of the press is connected so that the base plate 0 using the Master cylinder in the pressing direction along the central Press axis 74 pressed upwards or lowered downwards can be.
  • the base plate 0 fixed is clamped in the press frame and the Connection device 71 with the master press cylinder is coupled.
  • the base plate 0 serves as a support device for the individual stamp carrier 1 - 4 in the press end position, d. H. if the individual stamp carriers with the help of Relative movement of the base plate 0 and the die plate 5 be pressed against each other until they stop. Between individual stamp carriers 1 - 4 and the base plate 0 for this purpose support devices 12-14 are arranged. The lowest of the supports 12 serves as Support device for the second stamp carrier 2, the support device 13 arranged above is used for support of the third stamp carrier 3 and the one shown above Support device 14 serves to support the fourth Stamp holder 4.
  • the support devices shown consist of two opposite side support elements 12a, 13a, 14a, which are part-cylindrical around the central Press axis 74 are arranged around.
  • the lateral support elements 12a, 13a, 14a each have at least one contact surface 12b, 13b, 14b on which the stamp carriers 2, 3 and 4 are supported are. Also, are on this or another Support surface 12c above arranged support devices 13 supported.
  • the bearing surface 12b is for the Stamp carrier 2 facing the central press axis 74 and the bearing surface 12c for one arranged above Support device 13 facing away from the central press axis 74 arranged.
  • the bearing surfaces 12b, 13b, 14b for the stamp carriers 2, 3 or 4 are essentially ring-shaped and connect arranged opposite each other lateral support elements 12a, 13a and 14a of the Support devices 2, 3 and 4.
  • each other standing side support elements 12a, 13a, 14a is dimensioned in such a way that it is central Center pin as well as the stamp carriers 1 - 3 from support devices 0, 1, 2, 3 arranged below Die 5 can be carried out.
  • the lowest support device 12 of this type is a central one Passage opening for passing the center pin 75 and of the first stamp carrier 1.
  • the second support device 13 has a wider one central opening for the passage of the Center pin 75, the first stamp carrier 1 and the second Stamp carrier 2, the second stamp carrier 2 as also the second support device 13 both on the lower one Support device 12 are supported.
  • the one on the second Support device 13 supported third side Support device 14 has an even wider one central opening for the passage of the Center pin 75, the first stamp carrier 1, the second Stamp carrier 2 and the third stamp carrier 3.
  • a clamping plate 8 is above this arranged.
  • the clamping plate 8 is by means of clamping plate support elements 81 from the uppermost support device 14 spaced from this on the support surface 14c.
  • the clamping plate 8 is by means of a tie rod connection can be clamped against the base plate 0.
  • a tie rod tension from a Tension screw 82, which in a tension screw receiving bore 82c is screwed into the base plate 0 and upwards through clamping screw feed-through openings 82b in the lateral support elements 12a, 13a, 14a Support devices 12, 13, 14 is guided.
  • the tensioning screw 82 To tense up leads the tensioning screw 82 into a tie rod tensioning element 83, which with its lower frontal circumference on the Contact surface 14c of the upper support device 14 as Clamping abutment for clamping the support devices 12, 13, 14 rests against the base plate 0.
  • the tension screw 82 leads into a central threaded hole on the front of the Tie rod tensioning element 83, so that through a Rotation of the tie rod tensioning element 83 on the Contact surface 14c of the upper support device 14 lying Front side of the support devices arranged one above the other 12, 13, 14 braced against the base plate 0.
  • the clamping plate 8 has the tie rod clamping element 83 in the a threaded hole for receiving a Screw 84 on, the shaft by a corresponding Bore in the clamping plate 8 is passed.
  • the clamping plate 8 also has a central one Feed-through opening 86, which is opposite the central Feed-through opening through the uppermost support device 14 is larger to the center pin 75 and the Stamp holders 1, 2 and 3 also the one on the top one Support device 14 supported stamp carrier 4 in To pass in the direction of the die 5. For this passed elements is also a Leadership function provided.
  • the lateral support elements 12a, 13a, 14a of the support devices 12, 13, 14 are designed to be lower on the side facing away from the central press axis 74 than on the side facing the central press axis 74.
  • the respective support surface 12b, 13b, 14b for the stamp carriers 2, 3 and 4 is at a higher level than the corresponding support surface 12c, 13c, 14c for the support devices 3, 4 or tie rod clamping elements 83 and clamping plate Support elements 81.
  • intermediate support pieces 12d and 13d are inserted between the support surface 12c, 13c and the underside of the corresponding lateral support element 13a, 14a.
  • the height of the support devices 3, 4 and thus also their contact surface 13b, 14b for the stamp carrier 3, 4 can be varied in a simple manner by a variation of such support device intermediate pieces 12d, 13d or designs without such support device intermediate pieces , As can be seen in particular from the sectional view from FIG. 2, the width of the lateral support elements 12a, 13a, 14a tapers from level to level upwards in order to enable a correspondingly larger central through opening for the stamp carriers.
  • FIG. 4 As shown in FIG. 4 with an enlarged detail of FIG. 3 can be seen, is between the outer peripheral walls by stepping towards the central axis 74 towering wall sections 13e and the adjacent Supporting device intermediate piece 13d a gap 13f leave.
  • This gap 13f serves to remove powder 85, which as excess or misdirected powder 85 next to the stamp carrier 3 on the support surface 13b for this stamp carrier 3 falls down.
  • Such powder 85 can especially in the case of adjustment movements in the gap 13f occur and becomes after formation of a cone 85a automatically discharged laterally from the bottom of the gap 13f, see above that this misdirected powder 85 from the tower-like Structure is led away at least to base plate 0, which causes wear or even jamming during operation be reduced.
  • the bearing surfaces 12b, 13b, 14b for the stamp carriers 2, 3 and 4 formed such that these in the direction of the central axis 74 in the Protrude through, which through the below of the support surfaces 12b, 13b, 14b formed in this way located inner peripheral wall of the support devices 12, 13, 14 is left.
  • the size of the feedthrough will be thus through the protruding sections 12g, 13g, 14g certainly.
  • Below these protruding sections 12g, 13g, 14g is between a stamp carrier passed through 1, 2 or 3 and the inside wall of the stamp support device 12, 13, 14 a free space to lead a height limiting stop element 1b, 2b or 3b leave.
  • the bottom of the serves in the room protruding section 12g, 13g, 14g with its underside as a support stopper.
  • the Support device stop element 12g, 13g, 14g is used thus with its underside as a counterstop for the Top of the height limit stop element 1b, 2b or 3b of the stamp carrier 1, 2 or 3, which is to the central axis 74 towards the support device stop element in the feed-through opening is directly adjacent.
  • the height limit stop elements 1b, 2b, 3b are advantageously cylindrical and with an internal thread formed, the internal thread in a corresponding External thread on the outer circumference of the stamp carrier 1, 2 or 3 intervenes. This allows the height of the height limit stop elements 1b, 2b, 3b on the outer circumference of the Stamp holder 1, 2 or 3 by simply screwing them together can be varied against each other around the central axis 74.
  • the support device stop elements advantageously serve 12g, 13g, 14g at the same time with their top as a support surface 12b, 13b and 14b for the above arranged and supported stamp carriers 2, 3 and 4.
  • the support devices 12, 13, 14 thereby serve at the same time as fixed stops for the attached stamp carrier 2, 3 or 4 in the press end position.
  • Around the fixed stop height to vary is in the transition area between the Support surface 12b, 13b, 14b for the stamp carriers 2, 3 and 4 respectively and the stamp carriers 2, 3 and 4 a fixed stop setting device arranged.
  • Such Height adjustment device can in a known manner, for example as taken from DE 40 00 423 C2 known, from stacked ring elements with an inclined plane facing each other.
  • stamp carrier height adjustment device 2c which from a cylindrical element 2c with an internal thread is built up, which in a corresponding external thread engages the outside surface of the stamp carrier 2.
  • stamp carrier height adjustment device 2c which from a cylindrical element 2c with an internal thread is built up, which in a corresponding external thread engages the outside surface of the stamp carrier 2.
  • the height limit stop elements 1b, 2b, 3b serve Height adjustment drives 90 or 91. In principle, can this height adjustment drives 90, 91 in a known per se Way.
  • a Height adjustment drive 91 is preferred, which in FIG. 5 is shown.
  • the slope conditions and Slope directions of the individual involved Threading devices must be coordinated so that the Height adjustment drive 91 preferably to the same extent as the height limit stop element 1b relative to that Stamp carrier 1 is moved up or down.
  • the height adjustment drive 91 shown points to Actuation of a hand crank 92, but alternatively also a motor drive can be used. Together with the hand crank 92, a shaft 93 is rotated, which into a worm housing 93a leads. In the screw housing 93a, the Rotational movement of the shaft 93 into a rotational movement a threaded spindle 94 implemented from below in the worm housing 93a protrudes.
  • the threaded spindle 94 leads downwards through the stamp carrier plate 1a of the Stamp carrier 1 and has in its lower outer circumference External thread, which is in an internal thread Threaded spindle receiving bore 94a in the stamp carrier plate 1a intervenes.
  • the threaded spindle has underneath the worm housing 93a 94 a toothed wheel 95, which together with the Threaded spindle 94 rotates about its axis of rotation.
  • the toothed wheel 95 engages teeth with its teeth, which on the outer circumference of the height limiting stop element 1b are formed.
  • the threaded spindle 94 and the threaded spindle receiving bore 94a along with the movement of the Height limit stop element 1b up or down also the entire height adjustment drive 91 upwards or moved down.
  • the toothed wheel 95 thus always remains in the Engagement with the circumferential teeth of the height limiting stop element 1b, so that the latter as a component can be formed with a relatively low height.
  • Threaded spindle mounting holes 94b with sufficient play intended.
  • Such threaded spindle receiving holes 94b can also improve the management of the Serve height adjustment device.
  • the shaft 93 can tilt through a guide device 93b lead which one up and / or down has outstanding element, which on a External wall of adjacent components, e.g. B. the base plate 0, sliding and thus leading.
  • the stamp carrier 1 preferably made up of several individual elements attached to the Stamp carrier plate 1a are arranged.
  • an upper one Stamp carrier section 1g which is the actual function takes over as a stamp carrier.
  • the fixed stop setting device for height adjustment of the fixed stop.
  • This preferably consists of a lower one Stamp carrier section 1d, which with the upper Stamp carrier section 1g by means of, for example, a Screw 1f, which through a corresponding hole in the Passes stamp carrier plate 1a, is screwed.
  • the upper stamp carrier section 1g has an outer peripheral thread on, which with the height limiting stop element 1b in Intervention stands.
  • the lower stamp carrier section 1d has also an external thread, which with the Fixed stop adjuster 1c is engaged, so that by mutual rotation of the latter Components 1d, 1c a height adjustment of the stamp carrier 1 and the stamp carrier plate 1a opposite the base plate 0 or at higher levels compared to the support devices 12, 13, 14 is made possible.
  • the support devices 12 described, 13, 14 with a to the central axis 74 in the Passage slightly protruding Support element 12g, 13g, 14g is advantageously a double function as a stop element allows.
  • the upper contact surface 12c serves 13c, 14c of the support element 12g, 13g, 14g as Fixed stop for the stamp carrier 2, 3 supported on it or 4.
  • the lower side of the Supporting device elements 12g, 13g, 14g as a counter-stop for the upper edge of the corresponding height limit stop elements 1b, 2b and 3b on the outer circumference from below the support device 12, 13, 14 supported stamp carriers 1, 2 or 3. This enables a space-saving and at the same time modular arrangement with high stability Press movements and in the press end position.
  • the modular Arrangement of the individual elements also with a view Synchronization arrangement for the phase of Powder transport can be equipped.
  • powder is transported filling the die opening 5a in the die with powder and lowering the upper punch from the upper one Press block 6 up to a powder contact Powder chamber lowered synchronously, with the or the upper stamps in sync with one or more stamps of the lower press block can be lowered.
  • synchronization rods 55 which are received in the upper press block 6, downwards through synchronizing bar feed-through openings 56 in the die plate 5 and the stamp carrier plates 2a, 3a, 4a through to a stamp carrier plate 4a, which is synchronous to be moved with the movement of the upper press block.
  • the synchronization rod through openings 56 trained.
  • the synchronization rod can also have a flange 57 get put on or put on a shoe 57 whose outer circumference is larger than the diameter of the Sync rod through hole 56 is such that the synchronization rod with the flange or shoe 57 against the top of the selected stamp carrier plate 4a suppressed.
  • the use of even more or less Synchronization rods as is the case for the tie rods 70 and the like applies.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Powder Metallurgy (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP03026748.8A 2002-11-22 2003-11-21 Dispositif pour fabriquer des articles pressés conservant leur dimension à partir de matières pulvérulentes Expired - Lifetime EP1422050B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10254656A DE10254656B4 (de) 2002-11-22 2002-11-22 Presseneinrichtung zum Herstellen maßhaltiger Presslinge mit zentraler Stempelabstützung
DE10254656 2002-11-22

Publications (3)

Publication Number Publication Date
EP1422050A2 true EP1422050A2 (fr) 2004-05-26
EP1422050A3 EP1422050A3 (fr) 2006-01-04
EP1422050B1 EP1422050B1 (fr) 2014-11-05

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Country Status (4)

Country Link
US (1) US7229263B2 (fr)
EP (1) EP1422050B1 (fr)
DE (1) DE10254656B4 (fr)
ES (1) ES2528654T3 (fr)

Cited By (6)

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EP1849591A1 (fr) * 2006-04-29 2007-10-31 Fette GmbH Presse
EP2060346A2 (fr) * 2007-11-14 2009-05-20 Miba Sinter Austria GmbH Outil d'étanchéité, dispositif de compactage comprenant cet outil et procédé pour la compactage d'une pièce frittée ou de poudres
WO2013067995A1 (fr) * 2011-11-09 2013-05-16 Dorst Technologies Gmbh & Co. Kg Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents
EP3530446A1 (fr) 2018-02-26 2019-08-28 Osterwalder AG Presse à poudre dotée de levier à genouillère et d'entraînement électrique
CN113042619A (zh) * 2019-12-26 2021-06-29 广东利元亨智能装备股份有限公司 一种防卡死的电池封装设备的冲坑结构及方法
CN115891014A (zh) * 2022-12-20 2023-04-04 广东利多邦卫浴有限公司 一种智能人造石制造装置

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AT502360B1 (de) * 2004-11-17 2007-05-15 Mpt Metal Press Tec Gmbh Presse zum herstellen eines gestuften formkörpers aus pulver
EP1849590B1 (fr) 2006-04-29 2013-05-15 Fette GmbH Presse
EP2376247B8 (fr) * 2009-01-12 2019-12-25 Metal Additive Technologies Procèdè de produire des pièces à multiples niveaux obtenues à partir d'une poudre métallique sphérique agglomérée
DE102010051513A1 (de) * 2010-11-16 2012-05-16 Dorst Technologies Gmbh & Co. Kg Keramikpulver- und/oder Metallpulver-Pressenwerkzeug, Keramikpulver- und/oder Metallpulver-Presse, modulares System mit einem solchen Pressenwerkzeug, Verfahren zum Zusammensetzen eines solchen Pressenwerkzeugs
DE102011050971B4 (de) * 2011-06-09 2014-04-03 Rekers Verwaltungs-GmbH & Co. KG Steinformmaschine mit lineargeführtem Tragelement
DE102014003726A1 (de) * 2014-03-18 2015-09-24 Gkn Sinter Metals Engineering Gmbh Presse zum Herstellen maßhaltiger Grünlinge und Verfahren zum Herstellen
CN105398077A (zh) * 2015-12-15 2016-03-16 常州市科诺电子设备有限公司 用于压机的框架主板
DE102016120195A1 (de) 2016-10-24 2018-04-26 Dorst Technologies Gmbh & Co. Kg Presseneinrichtung
DE102017114457B4 (de) * 2017-06-29 2019-08-08 Gkn Sinter Metals Engineering Gmbh Ebenenplatte eines Pressenwerkzeugs
DE102017114456B4 (de) * 2017-06-29 2019-08-08 Gkn Sinter Metals Engineering Gmbh Ebenenplatte eines Pressenwerkzeugs
US11724300B2 (en) 2021-02-19 2023-08-15 Wilson Tool International Inc. Die shoe assemblies configured for shimless adjustment

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DE20117609U1 (de) * 2001-10-27 2002-01-17 Fette Wilhelm Gmbh Anordnung einer Matrizenplatte einer hydraulischen Presse
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DE4000423A1 (de) * 1990-01-09 1991-07-11 Dorst Masch & Anlagen Presse zur herstellung masshaltiger presslinge aus pulverfoermigem material
US5498147A (en) * 1990-08-10 1996-03-12 Yoshizuka Seiki Co., Ltd. Powder molding press
DE4227640A1 (de) * 1992-08-18 1994-02-24 Mannesmann Ag Presse zur Herstellung maßhaltiger Preßkörper
US5551856A (en) * 1992-11-05 1996-09-03 Yoshizuka Seiki Co., Ltd. Apparatus for connecting punches in powder molding press machine
DE10135523A1 (de) * 2001-07-20 2003-02-06 Dorst Masch & Anlagen Presseneinrichtung zum Herstellen maßhaltiger Presslinge aus pulverförmigen Metall
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Publication number Priority date Publication date Assignee Title
EP1849591A1 (fr) * 2006-04-29 2007-10-31 Fette GmbH Presse
US7559755B2 (en) 2006-04-29 2009-07-14 Fette Gmbh Press
EP2060346A2 (fr) * 2007-11-14 2009-05-20 Miba Sinter Austria GmbH Outil d'étanchéité, dispositif de compactage comprenant cet outil et procédé pour la compactage d'une pièce frittée ou de poudres
US8167602B2 (en) 2007-11-14 2012-05-01 Miba Sinter Austria Gmbh Compacting tool
AT505947B1 (de) * 2007-11-14 2016-04-15 Miba Sinter Austria Gmbh Verdichtungswerkzeug
EP2060346A3 (fr) * 2007-11-14 2017-05-17 Miba Sinter Austria GmbH Outil d'étanchéité, dispositif de compactage comprenant cet outil et procédé pour la compactage d'une pièce frittée ou de poudres
WO2013067995A1 (fr) * 2011-11-09 2013-05-16 Dorst Technologies Gmbh & Co. Kg Procédé et presse de compression d'une pièce constituée d'au moins deux matériaux métalliques et/ou céramiques pulvérulents et/ou granulaires différents
EP3530446A1 (fr) 2018-02-26 2019-08-28 Osterwalder AG Presse à poudre dotée de levier à genouillère et d'entraînement électrique
EP3530446B1 (fr) * 2018-02-26 2024-05-01 Osterwalder AG Presse à poudre dotée de levier à genouillère et d'entraînement électrique
CN113042619A (zh) * 2019-12-26 2021-06-29 广东利元亨智能装备股份有限公司 一种防卡死的电池封装设备的冲坑结构及方法
CN115891014A (zh) * 2022-12-20 2023-04-04 广东利多邦卫浴有限公司 一种智能人造石制造装置
CN115891014B (zh) * 2022-12-20 2023-09-15 佛山市缇诺卫浴有限公司 一种智能人造石制造装置

Also Published As

Publication number Publication date
ES2528654T3 (es) 2015-02-11
DE10254656B4 (de) 2005-10-13
EP1422050A3 (fr) 2006-01-04
DE10254656A1 (de) 2004-06-09
US20040137100A1 (en) 2004-07-15
EP1422050B1 (fr) 2014-11-05
US7229263B2 (en) 2007-06-12

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