EP0396929A1 - Isostatic moulding apparatus for the production of compacted bodies of ceramic powder material - Google Patents

Isostatic moulding apparatus for the production of compacted bodies of ceramic powder material Download PDF

Info

Publication number
EP0396929A1
EP0396929A1 EP90107073A EP90107073A EP0396929A1 EP 0396929 A1 EP0396929 A1 EP 0396929A1 EP 90107073 A EP90107073 A EP 90107073A EP 90107073 A EP90107073 A EP 90107073A EP 0396929 A1 EP0396929 A1 EP 0396929A1
Authority
EP
European Patent Office
Prior art keywords
molded parts
needles
row
conveyor belts
press
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
EP90107073A
Other languages
German (de)
French (fr)
Other versions
EP0396929B1 (en
Inventor
Hubert Schaidl
Bernd Wunderlich
Walter Rau
Friedel Mäurer
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 EP0396929A1 publication Critical patent/EP0396929A1/en
Application granted granted Critical
Publication of EP0396929B1 publication Critical patent/EP0396929B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
    • B28B3/06—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould with two or more ram and mould sets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/021—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length
    • B28B5/022—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of definite length the moulds or the moulding surfaces being individual independant units and being discontinuously fed

Definitions

  • the invention relates to an isostatic press according to the preamble of claim 1.
  • the invention is concerned with the production of electrolyte sleeves which are used in batteries.
  • the compression process and the subsequent relaxation process require a predetermined period of time, it is provided according to a further development to provide the shaping needles on a movable sliding head, so that during the manufacture of the sleeves in the shaping pots, shaped needles previously excavated from the shaping pots interact with gripping devices which interact with the sleeves Strip off the forming needles and place on a conveyor belt.
  • the shaping needles are lifted out of the shaping pots and moved to the gripping devices, the shaping needles freed from the sleeves are simultaneously converted into the shaping pots, so that the sleeves are unloaded from the shaping needles in parallel New electrolyte sleeves can be produced on a conveyor belt.
  • the object of the invention is to develop a press of the type described in such a way that a large number of sleeves per work cycle can be produced on the press with a simple press construction and movement sequence as well as favorable load distribution. Good arrangement of the tool elements and the gripping and transport devices should ensure good access to the tool itself.
  • this object is characterized by the solved the part of claim 1 contained features, expedient developments of the invention are characterized by the features contained in the subclaims.
  • At least one, but preferably two rows of molding needles are provided on the sliding head, the molding needles being arranged in each row in an exactly straight line and at the same distance from one another.
  • the mold needles are provided in double number compared to the mold parts arranged on the press table in the manner of mold pots.
  • the same distance between adjacent forming needles in all rows of the forming needles is half the size of the same distance between adjacent molded parts in all rows.
  • This means that the division of the forming needles is half the length of the division of the molded parts on the press table.
  • the distances between the rows of molding needles and the molded parts are dimensioned such that a row of molded parts is aligned with a row of molded needles.
  • the movement of the sliding head takes place in the axial direction of the rows of shaped needles and shaped parts, namely by the extent of the division of the shaped needles, that is to say half the length of the spacing of the shaped parts from one another.
  • the molding needles which have just been freed from the sleeves, are moved over the mold pots that have just been released, so that, with the stripping of the sleeves, the production of compacts can take place using the molding needles now moved over the molding pots.
  • the sliding head is reversed again by the measure the division of the forming needles to each other, i.e. half the distance of the molded parts moved in the axial direction of the rows and so on.
  • the sliding head with the numerous shaping needles arranged thereon is only moved back and forth by a small amount from the center of gravity of the press, so that only a small change in the center of gravity takes place in the press operation, which is also favorable for the exact Alignment of the needles and also the production of the compacts affects.
  • the sliding head movement is comparatively short.
  • the conveyor belts can extend perpendicular to the axial direction of the rows of molding pots and the molding needles, which ensures good accessibility to the molding elements.
  • the gripping devices can be placed well between the molding pots or next to the molding pots lying outside in the row without the accessibility to the molding elements being impaired. The supply of the powder is not affected by the sliding head movement. Overall, the filling hoses that are coupled to the filling containers can also be made simpler.
  • endless belts are used to transport the sleeves, which extend perpendicular to the axial direction of the rows. Due to the working movement of the sliding head, the conveyor belts are each arranged in such a way that two adjacent conveyor belts delimit the oppositely arranged mold pots of several rows between them, so that the compacts excavated from these mold pots are placed once on the left and then on the right conveyor belt depending on the slide head can be.
  • the conveyor belts are expediently equipped with pot-like holding elements on which the sleeves are deposited.
  • To remove the sleeves are used simple gripping devices which are arranged above the conveyor belts and have claws which grip the sleeves, so that the sleeves are automatically stripped off when the shaping needles are lifted up.
  • the Conveyor belts ie the pot-like holding elements and the claws of the gripping devices are each positioned so that the shaping needles are exactly aligned over the conveyor belts or with the corresponding gripping devices after being lifted out of the mold pots and moved by half the division of the molded parts.
  • the sliding head movement takes place in a simple manner by means of a hydraulically or pneumatically actuated piston which is guided in a cylinder.
  • the closing and opening movement of the molds takes place in the vertical direction and the tool part receiving the sliding head is coupled to the upper bear of the press, whereas the mold pots are arranged on the fixed press table of the press.
  • the press comprises a press frame denoted by 1, a press table 2 which is fixed to the press frame 1 and carries molded parts 3 which, together with needle-like shaped elements which can be seen more clearly from FIG. 3, delimit 4 molds for producing the compacts.
  • the shaping needles 4 are received on a sliding head 5, which is coupled as part of the tool part 6 to the upper bear of the press, which can be moved up and down.
  • the molds are filled via filling containers 7 arranged on the side of the press, which are provided in a number corresponding to the number of molds. The powder is fed directly from these filling containers 7 to the molds via feed lines 8.
  • the molded parts are each formed from a socket-like molding pot 9, which is expediently made of steel and carries a rubber sleeve 10 inside.
  • the molding pot 9 delimits a chamber 11 for receiving oil below the rubber sleeve 10.
  • the shaped element 4 can be inserted in the manner of a mandrel-like shaped needle 12 which, with the rubber sleeve 10, delimits a mold cavity 13 or the shape for producing the compact, which is filled with powder from above via the feed line 8.
  • the mold cavity is closed at the top, for example by moving down a sleeve 14, which closes the mold 13 with its shoulder 15 from above.
  • the molding needle 12 is lifted out of the rubber sleeve 10, so that the compact adhering to it is lifted out of the molding pot 3.
  • two rows 16 and 17 of five straight pots 9, ie a total of 10 pots 9, are used.
  • the axial direction of the two rows 16 and 17 is parallel to one another and the mold pots 9 of both rows 16 and 17 are Arranged without displacement to one another, ie, opposing mold pots 9 of both rows 16 and 17 each lie in a plane perpendicular to the axial direction of rows 16 and 17, that is to say exactly opposite one another.
  • conveyor belts 18 extend perpendicular to the axial direction of the two rows 16 and 17. Finally, at the two ends of the rows 16 and 17, conveyor belts 18 are arranged outside next to the outer mold pots 9. As a result, two mold pots 9 are delimited by two adjacent conveyor belts 18.
  • the conveyor belts 18 are expediently formed by endless belts with an upper and lower run, as can be seen from FIG. 5.
  • Fig. 5 also shows that pot-like holding elements 19 are arranged on the conveyor belts 18 for receiving the compacts or sleeves 20 stripped from the shaping needles 12.
  • Fig. 4 finally shows quite clearly that between the conveyor belts 18 there is sufficient space for the feed lines 8, via which powder is expediently fed from the individual filling containers 7 to the mold pots due to gravity.
  • the shaping needles 12 are all received on a sliding head 5 which is guided via guides 21 on a holding plate 22 coupled to the upper bear.
  • the movement of the sliding head 5 takes place pneumatically or hydraulically by means of a piston / cylinder unit, designated 23 in FIG. 6.
  • Fig. 6 finally shows the arranged in line mold pots or mold parts 9 and the assignment of the needles 12 carried on the sliding head 5 to these mold pots 3.
  • the sliding head 5 carries a row of molded needles 12 per row of molded parts 3, so that on the Sliding head 5 in the illustrated embodiment, a total of 20 needles are added.
  • the molded parts 3 of both rows are accommodated on the press table 2 with the same lateral spacing A and the molding needles 12 are also at the same distance B from one another, the distance B being half the length of distance A is.
  • the distance between the molding needles 12 is thus half the division of the molded parts 3.
  • the sliding head 5 has two rows of molding needles 12, each row of molding needles 12 each having 10 molding needles in a straight line.
  • the shaping needles 12 of each row are located in a vertical plane above the associated shaping pots or shaped parts 3, as can best be seen in FIG. 5. This ensures that when the upper bear of the press is lowered, the shaping needles 12 received on the sliding head 5 are inserted exactly into the openings of the shaping pots 9.
  • Gripping devices 24 are provided between the opposite molded parts 3 and at the two ends of the rows 16 and 17, which are best shown in FIGS. 4 and 5.
  • the gripping devices 24 have claws 25 shown in FIG. 6.
  • the claws 25 are arranged above the conveyor belts 18.
  • Two gripping devices 24 as well as two conveyor belts 18 are assigned to each molding pot, but the conveyor belts 18 and gripping devices 24 arranged between the paired mold parts 3 are used jointly by the adjacent molding pots or in connection with these adjacent molding pots.
  • six conveyor belts 18 and twelve gripping devices 24 are provided for ten mold pots 9 or molded parts 3.
  • the operation of the press is as follows: With the upper bear moving downward, the ten shaping needles 12 aligned with the ten shaping pots 9 are inserted into the shaping pots 9 or into the rubber sleeves 10 accommodated therein, cf. Fig. 3. During the filling process, the compression and the subsequent relaxation, the remaining ten shaping needles 12, which are offset by half the division B in the axial direction of the rows 16 and 17, are in alignment above the conveyor belts 18, as best shown in FIG. 6.
  • the sliding head 5 After compaction and despanning of the compact, the sliding head 5 is turned off lifting of the forming needles 12 from the forming pots 9 moves upward, the lifting of the forming needles 12 from the conveyor belts 18 takes place at the same time, the sleeves or compacts 20 still adhering to the forming needles 12 being stripped off when they are raised.
  • the sleeves 20 accommodated in the holding elements 19 are conveyed out of the press after the shaping needles 12 have been lifted off in accordance with the cycle movement of the conveyor belts 18. Then, depending on the cycle according to FIG. 6, the sliding head 5 is moved to the left or to the right in the axial direction of the two rows 16 and 17, so that the compacts adhering to the forming needles 12 which have just been produced in the mold 13 are moved over the conveyor belts 18.
  • the movement to the left takes place, as shown in dashed lines.
  • the molding needles 12 previously aligned with the conveyor belts are moved over the molding pots 9, so that with the downward movement of the closing head 5, the molding needles with the pressed articles adhering to them are moved onto the conveyor belts 18 and, on the other hand, the molding needles previously aligned with the conveyor belts into the molding pots 9 will.
  • the closing head 5 is raised again and now moved to the right by half a division, that is to say by the distance B in FIG. 6, so that during the unloading of a compact the production of a compact takes place simultaneously.
  • more than two rows of molding pots and molding needles can also be used without any change in the movement of the closing head 5 by half the distance between the molding pots 9 in the axial direction of the rows 16 and 17.

Abstract

Moulding apparatus for the isostatic compaction of powdery ceramic material. The tool support has a sliding head (5) with mould cores (4), and in fact with twice as many mould cores (4) as moulds (3), the mould cores (4) defining the mould cavities for producing the compacted bodies. The distance between the mould cores (4) on the sliding head (5) is half the distance between the moulds (3). The sliding head (5) is moved reciprocatingly in cycles by the distance between the mould cores (4) so that, at the same time as the lifting out of the compacted bodies produced and the discharging of the compacted bodies onto conveyor belts (18), other mould cores (4) are moved into the mould pots (9). <IMAGE>

Description

Die Erfindung betrifft eine isostatische Presse gemäß dem Oberbegriff des Patentanspruches 1. Insbesondere befaßt sich die Erfindung mit der Herstellung von Elektrolythülsen, die in Batterien Verwendung finden.The invention relates to an isostatic press according to the preamble of claim 1. In particular, the invention is concerned with the production of electrolyte sleeves which are used in batteries.

Zur Herstellung derartiger Preßlinge aus pulverförmigem kera­mischem Material durch isostatische Verdichtung ist es be­kannt, topfartige Formteile zu verwenden, in denen Gummihül­sen aufgenommen sind, welche mit in die Formtöpfe eingefahre­nen Formnadeln die Formen bzw. Formhohlräume zur Herstellung der Preßlinge begrenzen. Nach Einfüllen des pulverförmigen Materials in diese Formhohlräume erfolgt das Schließen der Form und die isostatische Pressung durch Beaufschlagung eines hinter der Gummihülse angeordneten Ölkissens mit Druck bis zu 2000 bar. Nach Abbau des Drucks und einer gewissen Entspan­nungszeit werden die Hülsen aus den Formtöpfen herausgehoben, was durch Hochfahren der Formnadeln erfolgt, an denen die Hülsen anhaften. Da es sich bei solchen Preßlingen, nament­lich bei Elektrolythülsen, um Massenartikel handelt, ist es erforderlich, den Preßvorgang entsprechend abzustimmen, so daß je Arbeitstakt mehrere Hülsen herstellbar sind. Aus die­sem Grund werden Werkzeuge verwendet, die mehrere Formtöpfe und Formnadeln aufweisen. So sind Pressen bekannt, bei denen auf dem Pressentisch die Formtöpfe in Reihen und mit gleich­mäßigem Abstand in jeder Reihe zueinander angeordnet sind. Die Formnadeln sind von einem mit dem Oberbären der Presse gekoppelten Werkzeugteil getragen. Dadurch ist es möglich, je Arbeitstakt mehrere Elektrolythülsen herzustellen. Da der Verdichtungsvorgang und der darauffolgende Entspannungsvor­gang eine vorgegebene Zeitspanne benötigen, ist es nach einer Weiterentwicklung vorgesehen, die Formnadeln auf einem beweg­lichen Schiebekopf vorzusehen, so daß während der Herstellung der Hülsen in den Formtöpfen zuvor aus den Formtöpfen ausge­hobene Formnadeln mit Greifeinrichtungen zusammenwirken, die die Hülsen von den Formnadeln abstreifen und auf einem Transportband ablagern. Nach Ablauf der für die Verdichtung und die darauffolgende Entspannung erforderlichen Zeitperiode erfolgt mit dem Ausheben der Formnadeln aus den Formtöpfen und deren Verschiebung zu den Greifeinrichtungen gleichzeitig das Umsetzen der von den Hülsen befreiten Formnadeln in die Formtöpfe, so daß parallel zum Abladevorgang der Hülsen von den Formnadeln auf einem Transportband die Herstellung neuer Elektrolythülsen erfolgen kann.For the production of such compacts from powdered ceramic material by isostatic compaction, it is known to use pot-like molded parts in which rubber sleeves are accommodated, which limit the molds or mold cavities for the production of the compacts with molded needles inserted into the mold pots. After the powdery material has been poured into these mold cavities, the mold is closed and the isostatic pressure is applied by applying an oil cushion behind the rubber sleeve to a pressure of up to 2000 bar. After releasing the pressure and a certain relaxation time, the sleeves are lifted out of the mold pots, which is done by raising the forming needles to which the sleeves adhere. Since such compacts, especially electrolyte sleeves, are mass-produced items, it is necessary to adjust the pressing process accordingly, so that several sleeves can be produced per work cycle. For this reason, tools are used that have multiple mold pots and needles. Thus, presses are known in which the mold pots are arranged on the press table in rows and at an even distance from each other. The shaping needles are carried by a tool part coupled to the upper bear of the press. This makes it possible to produce several electrolyte sleeves per work cycle. Since the compression process and the subsequent relaxation process require a predetermined period of time, it is provided according to a further development to provide the shaping needles on a movable sliding head, so that during the manufacture of the sleeves in the shaping pots, shaped needles previously excavated from the shaping pots interact with gripping devices which interact with the sleeves Strip off the forming needles and place on a conveyor belt. At the end of the time period required for the compression and the subsequent relaxation, when the shaping needles are lifted out of the shaping pots and moved to the gripping devices, the shaping needles freed from the sleeves are simultaneously converted into the shaping pots, so that the sleeves are unloaded from the shaping needles in parallel New electrolyte sleeves can be produced on a conveyor belt.

Aufgabe der Erfindung ist es, eine Presse der beschriebenen Art so weiterzubilden, daß bei einfachem Pressenaufbau und Bewegungsablauf sowie günstiger Lastverteilung eine große An­zahl von Hülsen je Arbeitstakt auf der Presse herstellbar ist. Dabei soll durch günstige Anordnung der Werkzeugelemente und der Greif- und Transporteinrichtungen ein guter Zugriff zum Werkzeug selbst gewährleistet sein.The object of the invention is to develop a press of the type described in such a way that a large number of sleeves per work cycle can be produced on the press with a simple press construction and movement sequence as well as favorable load distribution. Good arrangement of the tool elements and the gripping and transport devices should ensure good access to the tool itself.

Diese Aufgabe wird erfindungsgemäß durch die im kennzeichnen­ den Teil des Patentanspruches 1 enthaltenen Merkmale gelöst, wobei zweckmäßige Weiterbildungen der Erfindung durch die in den Unteransprüchen enthaltenen Merkmale gekennzeichnet sind.According to the invention, this object is characterized by the solved the part of claim 1 contained features, expedient developments of the invention are characterized by the features contained in the subclaims.

Nach Maßgabe der Erfindung sind auf dem Schiebekopf minde­stens eine, vorzugsweise jedoch zwei Reihen von Formnadeln vorgesehen, wobei in jeder Reihe die Formnadeln exakt gerad­linig und mit gleichem Abstand zueinander angeordnet sind. Die Formnadeln sind hierbei in doppelter Anzahl gegenüber den auf dem Pressentisch angeordneten Formteilen in Art von Formtöpfen vorgesehen. Dabei ist der in sämtlichen Reihen der Formnadeln gleiche Abstand benachbarter Formnadeln halb so groß wie der in sämtlichen Reihen gleiche Abstand benachbar­ter Formteile zueinander. Das heißt, die Teilung der Formna­deln beträgt die halbe Länge der Teilung der Formteile auf dem Pressentisch. Selbstverständlich sind die Abstände der Reihen der Formnadeln und der Formteile untereinander so be­messen, daß jeweils eine Reihe von Formteilen mit einer Reihe von Formnadeln ausgerichtet ist. Wichtig ist, daß die Bewe­gung des Schiebekopfs in Achsrichtung der Reihen von Formna­deln und Formteilen erfolgt und zwar um das Maß der Teilung der Formnadeln, also der halben Länge des Abstands der Form­teile zueinander. Nach Herstellung der Preßlinge in den Formtöpfen und dem Herausheben der Preßlinge durch Hochfahren der Formnadeln erfolgt eine Bewegung des Schiebekopfs in Achsrichtung der Reihen, um eine Länge, die dem Abstand der Formnadeln und damit dem halben Abstand der Formteile zuein­ander entspricht. Dadurch gelangen die Formnadeln mit den daran haftenden Hülsen über seitlich angeordnete Transport­einrichtungen, wo sie abgelagert werden. Gleichzeitig werden mit dieser Schiebekopfbewegung die Formnadeln, die gerade von den Hülsen befreit wurden, über die eben freigegebenen Formtöpfe gefahren, so daß parallel mit dem Abstreifen der Hülsen die Herstellung von Preßlingen unter Ausnutzung der nunmehr über die Formtöpfe gefahrenen Formnadeln erfolgen kann. Danach wird nach dem Ausheben der Formnadeln aus den Formtöpfen der Schiebekopf entgegengesetzt wieder um das Maß der Teilung der Formnadeln zueinander, also dem halben Ab­stand der Formteile in Achsrichtung der Reihen bewegt und so weiter. Durch die Bewegung des Schiebekopfs in Achsrichtung der Reihen wird der Schiebekopf mit den daran angeordneten zahlreichen Formnadeln nur um ein geringes Maß aus dem Schwerpunkt der Presse hin- und herversetzt, so daß nur eine geringe Schwerpunktveränderung im Pressenbetrieb stattfindet, was sich auch günstig für die exakte Ausrichtung der Nadeln und auch die Herstellung der Preßlinge auswirkt. Zugleich ist die Schiebekopfbewegung vergleichsweise kurz. Die Transport­bänder können sich senkrecht zur Achsrichtung der Reihen der Formtöpfe und der Formnadeln erstrecken, wodurch eine gute Zugriffsmöglichkeit zu den Formelementen gewährleistet ist. Gleichzeitig lassen sich die Greifeinrichtungen gut zwischen den Formtöpfen bzw. neben den in der Reihe außenliegenden Formtöpfen plazieren, ohne daß hierbei die Zugängigkeit zu den Formelementen beeinträchtigt wird. Auch die Zufuhr des Pulvers wird durch die Schiebekopfbewegung nicht beeinträch­tigt. Insgesamt können dadurch auch die Füllschläuche, die mit den Füllbehältern gekoppelt sind, einfacher ausgeführt werden.According to the invention, at least one, but preferably two rows of molding needles are provided on the sliding head, the molding needles being arranged in each row in an exactly straight line and at the same distance from one another. The mold needles are provided in double number compared to the mold parts arranged on the press table in the manner of mold pots. The same distance between adjacent forming needles in all rows of the forming needles is half the size of the same distance between adjacent molded parts in all rows. This means that the division of the forming needles is half the length of the division of the molded parts on the press table. Of course, the distances between the rows of molding needles and the molded parts are dimensioned such that a row of molded parts is aligned with a row of molded needles. It is important that the movement of the sliding head takes place in the axial direction of the rows of shaped needles and shaped parts, namely by the extent of the division of the shaped needles, that is to say half the length of the spacing of the shaped parts from one another. After the compacts have been produced in the mold pots and the compacts have been lifted out by raising the molding needles, the sliding head is moved in the axial direction of the rows by a length which corresponds to the spacing of the molding needles and thus half the spacing of the molded parts from one another. As a result, the shaping needles with the sleeves adhering to them pass over laterally arranged transport devices, where they are deposited. At the same time, with this sliding head movement, the molding needles, which have just been freed from the sleeves, are moved over the mold pots that have just been released, so that, with the stripping of the sleeves, the production of compacts can take place using the molding needles now moved over the molding pots. After that, after lifting the shaping needles out of the shaping pots, the sliding head is reversed again by the measure the division of the forming needles to each other, i.e. half the distance of the molded parts moved in the axial direction of the rows and so on. Due to the movement of the sliding head in the axial direction of the rows, the sliding head with the numerous shaping needles arranged thereon is only moved back and forth by a small amount from the center of gravity of the press, so that only a small change in the center of gravity takes place in the press operation, which is also favorable for the exact Alignment of the needles and also the production of the compacts affects. At the same time, the sliding head movement is comparatively short. The conveyor belts can extend perpendicular to the axial direction of the rows of molding pots and the molding needles, which ensures good accessibility to the molding elements. At the same time, the gripping devices can be placed well between the molding pots or next to the molding pots lying outside in the row without the accessibility to the molding elements being impaired. The supply of the powder is not affected by the sliding head movement. Overall, the filling hoses that are coupled to the filling containers can also be made simpler.

In zweckmäßiger Weise werden zum Abtransport der Hülsen End­losbänder verwendet, die sich senkrecht zur Achsrichtung der Reihen erstrecken. Hierbei sind aufgrund der Arbeitsbewegung des Schiebekopfes die Transportbänder jeweils so angeordnet, daß zwei benachbarte Transportbänder zwischen sich die gegen­überliegend angeordneten Formtöpfe mehrerer Reihen eingren­zen, so daß die aus diesen Formtöpfen ausgehobenen Preßlinge je nach Schiebekopf einmal auf das linke und danach wieder auf das rechte Transportband abgesetzt werden können. Zweck­mäßigerweise sind die Transportbänder mit topfartigen Haltee­lementen bestückt, auf denen die Hülsen abgelagert werden. Zum Abnehmen der Hülsen dienen einfache Greifeinrichtungen, die oberhalb der Transportbänder angeordnet sind und Klauen aufweisen, die die Hülsen fassen, so daß mit dem Hochheben der Formnadeln die Hülsen automatisch abgestreift werden. Die Transportbänder, d.h. die topfartigen Haltelemente und die Klauen der Greifeinrichtungen sind hierbei jeweils so posi­tioniert, daß die Formnadeln nach dem Ausheben aus den Formtöpfen und dem Verschieben um die halbe Teilung der Form­teile exakt über die Transportbänder bzw. mit den entspre­chenden Greifeinrichtungen ausgerichtet sind.Advantageously, endless belts are used to transport the sleeves, which extend perpendicular to the axial direction of the rows. Due to the working movement of the sliding head, the conveyor belts are each arranged in such a way that two adjacent conveyor belts delimit the oppositely arranged mold pots of several rows between them, so that the compacts excavated from these mold pots are placed once on the left and then on the right conveyor belt depending on the slide head can be. The conveyor belts are expediently equipped with pot-like holding elements on which the sleeves are deposited. To remove the sleeves are used simple gripping devices which are arranged above the conveyor belts and have claws which grip the sleeves, so that the sleeves are automatically stripped off when the shaping needles are lifted up. The Conveyor belts, ie the pot-like holding elements and the claws of the gripping devices are each positioned so that the shaping needles are exactly aligned over the conveyor belts or with the corresponding gripping devices after being lifted out of the mold pots and moved by half the division of the molded parts.

Die Schiebekopfbewegung erfolgt in einfacher Weise durch einen hydraulisch oder pneumatisch betätigbaren Kolben, der in einem Zylinder geführt ist. In einer baulich vorteilhaften Ausführungsform erfolgt die Schließ- und Öffnungsbewegung der Formen in vertikaler Richtung und ist das den Schiebekopf aufnehmende Werkzeugteil mit dem Oberbären der Presse gekop­pelt,wohingegen die Formtöpfe auf dem feststehenden Pressen­tisch der Presse angeordnet sind.The sliding head movement takes place in a simple manner by means of a hydraulically or pneumatically actuated piston which is guided in a cylinder. In a structurally advantageous embodiment, the closing and opening movement of the molds takes place in the vertical direction and the tool part receiving the sliding head is coupled to the upper bear of the press, whereas the mold pots are arranged on the fixed press table of the press.

Nachfolgend wird ein bevorzugtes Ausführungsbeispiel der Er­findung anhand der Zeichnung beschrieben. Darin zeigen in rein schematischer Darstellung

  • Fig.1 eine Vorderansicht der Presse,
  • Fig. 2 eine Seitenansicht der Presse,
  • Fig.3 eine Schnittansicht durch eine Form zur Herstellung eines Preßlings,
  • Fig. 4 eine Draufsicht auf den Pressentisch der Presse mit darauf angeordneten Formteilen,
  • Fig. 5 eine Seitenansicht eines Teils der Presse analog Fig. 2, jedoch in größerer Darstellung, sowie
  • Fig. 6 eine Vorderansicht der Presse analog Fig. 1, jedoch in in vergrößerter Darstellung.
A preferred embodiment of the invention is described below with reference to the drawing. In it show a purely schematic representation
  • 1 is a front view of the press,
  • 2 is a side view of the press,
  • 3 shows a sectional view through a mold for producing a compact,
  • 4 is a plan view of the press table of the press with molded parts arranged thereon,
  • Fig. 5 is a side view of part of the press analogous to Fig. 2, but in a larger representation, as well
  • Fig. 6 is a front view of the press analogous to Fig. 1, but in an enlarged view.

In den Fig. 1 und 2 ist schematisch der Gesamtaufbau der Presse dargestellt. Die Presse umfaßt einen mit 1 bezeichne­ten Pressenrahmen, einen mit dem Pressengestell 1 festen Pressentisch 2, der Formteile 3 trägt, die zusammen mit aus Fig. 3 besser ersichtlichen nadelartigen Formelementen 4 For­men zur Herstellung der Preßlinge begrenzen. Die Formnadeln 4 sind auf einem Schiebekopf 5 aufgenommen, der als Bestand­teil des Werkzeugteils 6 mit dem vertikal auf- und abbewegli­chen Oberbären der Presse gekuppelt ist. Die Füllung der For­men erfolgt über seitlich an der Presse angeordnete Einfüll­behälter 7, die in einer Anzahl entsprechend der Anzahl der Formen vorgesehen sind. Aus diesen Füllbehältern 7 erfolgt die unmittelbare Zufuhr des Pulvers zu den Formen über Zu­führleitungen 8.1 and 2, the overall structure of the Press shown. The press comprises a press frame denoted by 1, a press table 2 which is fixed to the press frame 1 and carries molded parts 3 which, together with needle-like shaped elements which can be seen more clearly from FIG. 3, delimit 4 molds for producing the compacts. The shaping needles 4 are received on a sliding head 5, which is coupled as part of the tool part 6 to the upper bear of the press, which can be moved up and down. The molds are filled via filling containers 7 arranged on the side of the press, which are provided in a number corresponding to the number of molds. The powder is fed directly from these filling containers 7 to the molds via feed lines 8.

Nach Fig. 3 sind die Formteile jeweils aus einem buchsenarti­gen Formtopf 9 gebildet, der zweckmäßigerweise aus Stahl her­gestellt ist und im Inneren eine Gummihülse 10 trägt. Der Formtopf 9 begrenzt unterhalb der Gummihülse 10 eine Kammer 11 zur Aufnahme von Öl. In die oben offene Gummihülse 10 ist das Formelement 4 in Art einer dornartigen Formnadel 12 ein­fahrbar, die mit der Gummihülse 10 einen Formhohlraum 13 bzw. die Form zur Herstellung des Preßlings begrenzt, welche von oben über die Zuführleitung 8 mit Pulver gefüllt wird. Nach erfolgtem Füllen der Form 13 wird der Formhohlraum oben ge­schlossen, etwa durch Herabfahren einer Hülse 14, die mit ih­rer Schulter 15 die Form 13 von oben schließt. Durch Aufbrin­gen von Druck erfolgt die isostatische Verdichtung des in die Form 13 gefüllten Pulvers. Nach Druckabbau und einer gewissen Entspannung erfolgt das Ausheben der Formnadel 12 aus der Gummihülse 10, so daß der daran haftende Preßling aus dem Formtopf 3 ausgehoben wird.According to Fig. 3, the molded parts are each formed from a socket-like molding pot 9, which is expediently made of steel and carries a rubber sleeve 10 inside. The molding pot 9 delimits a chamber 11 for receiving oil below the rubber sleeve 10. In the open-topped rubber sleeve 10, the shaped element 4 can be inserted in the manner of a mandrel-like shaped needle 12 which, with the rubber sleeve 10, delimits a mold cavity 13 or the shape for producing the compact, which is filled with powder from above via the feed line 8. After the mold 13 has been filled, the mold cavity is closed at the top, for example by moving down a sleeve 14, which closes the mold 13 with its shoulder 15 from above. By applying pressure, the powder filled in the mold 13 is isostatically compressed. After pressure reduction and a certain relaxation, the molding needle 12 is lifted out of the rubber sleeve 10, so that the compact adhering to it is lifted out of the molding pot 3.

Bei dem dargestellten Ausführungsbeispiel der Presse sind zwei Reihen 16 und 17 von jeweils fünf geradlinig ausgerich­teten Formtöpfen 9, also insgesamt 10 Formtöpfe 9 verwendet . Die Achsrichtung der beiden Reihen 16 und 17 ist parallel zu­einander und die Formtöpfe 9 beider Reihen 16 und 17 sind versetzungsfrei zueinander angeordnet, d.h., einander gegen­überliegende Formtöpfe 9 beider Reihen 16 und 17 liegen je­weils in einer Ebene senkrecht zur Achsrichtung der Reihen 16 und 17, also exakt einander gegenüberliegend.In the illustrated embodiment of the press, two rows 16 and 17 of five straight pots 9, ie a total of 10 pots 9, are used. The axial direction of the two rows 16 and 17 is parallel to one another and the mold pots 9 of both rows 16 and 17 are Arranged without displacement to one another, ie, opposing mold pots 9 of both rows 16 and 17 each lie in a plane perpendicular to the axial direction of rows 16 and 17, that is to say exactly opposite one another.

Zwischen den paarweise gegenüberliegenden Formtöpfen 3 er­strecken sich Transportbänder 18 senkrecht zur Achsrichtung der beiden Reihen 16 und 17. An den beiden Enden der Reihen 16 und 17 sind schließlich Transportbänder 18 außerhalb neben den außenliegenden Formtöpfen 9 angeordnet. Dadurch werden jeweils zwei Formtöpfe 9 von zwei benachbarten Transportbän­dern 18 begrenzt. Die Transportbänder 18 sind zweckmäßiger­weise durch Endlosbänder mit einem oberen und unteren Trum gebildet, wie aus Fig. 5 hervorgeht. Fig. 5 zeigt auch, daß auf den Transportbändern 18 topfartige Halteelemente 19 zur Aufnahme der von den Formnadeln 12 abgestreiften Preßlingen bzw. Hülsen 20 angeordnet sind. Fig. 4 zeigt schließlich noch recht deutlich, daß zwischen den Transportbändern 18 ausrei­chend Raum für die Zuführleitungen 8 vorhanden ist, über wel­che Pulver zweckmäßigerweise schwerkraftbedingt aus den ein­zelnen Füllbehältern 7 den Formtöpfen zugeführt wird.Between the pair of opposing mold pots 3, conveyor belts 18 extend perpendicular to the axial direction of the two rows 16 and 17. Finally, at the two ends of the rows 16 and 17, conveyor belts 18 are arranged outside next to the outer mold pots 9. As a result, two mold pots 9 are delimited by two adjacent conveyor belts 18. The conveyor belts 18 are expediently formed by endless belts with an upper and lower run, as can be seen from FIG. 5. Fig. 5 also shows that pot-like holding elements 19 are arranged on the conveyor belts 18 for receiving the compacts or sleeves 20 stripped from the shaping needles 12. Fig. 4 finally shows quite clearly that between the conveyor belts 18 there is sufficient space for the feed lines 8, via which powder is expediently fed from the individual filling containers 7 to the mold pots due to gravity.

Die Formnadeln 12 sind sämtlich auf einem Schiebekopf 5 aufgenommen, der über Führungen 21 an einer mit dem Oberbären gekoppelten Halteplatte 22 geführt ist. Die Bewegung des Schiebekopfs 5 erfolgt pneumatisch oder hydraulisch durch eine in Fig. 6 mit 23 bezeichnete Kolben/Zylinder-Einheit. Fig. 6 zeigt schließlich auch die in Reihe angeordneten Formtöpfe bzw. Formteile 9 und die Zuordnung der auf dem Schiebekopf 5 getragenen Formnadeln 12 zu diesen Formtöpfen 3. Der Schiebekopf 5 trägt je Reihe von Formteilen 3 eine Reihe von Formnadeln 12, so daß auf dem Schiebekopf 5 im dar­gestellten Ausführungsbeispiel insgesamt 20 Formnadeln aufge­nommen sind. Die Formteile 3 beider Reihen sind zueinander mit dem gleichen seitlichen Abstand A auf dem Pressentisch 2 aufgenommen und auch die Formnadeln 12 weisen zueinander den gleichen Abstand B auf, wobei der Abstand B die halbe Länge des Abstands A beträgt. Der Abstand der Formnadeln 12 beträgt somit die halbe Teilung der Formteile 3. Es verteht sich von selbst, daß der Schiebekopf 5 zwei Reihen von Formnadeln 12 aufweist, wobei jede Reihe von Formnadeln 12 jeweils 10 Form­nadeln in geradliniger Ausrichtung aufweist. Die Formnadeln 12 einer jeden Reihe befinden sich hierbei in einer senkrech­ten Ebene oberhalb der zugeordneten Formtöpfe bzw. Formteile 3, wie am besten aus Fig. 5 hervorgeht. Dadurch ist sicherge­stellt, daß mit dem Absenken des Oberbären der Presse die am Schiebekopf 5 aufgenommenen Formnadeln 12 exakt in die Öff­nungen der Formtöpfe 9 eingefahren werden.The shaping needles 12 are all received on a sliding head 5 which is guided via guides 21 on a holding plate 22 coupled to the upper bear. The movement of the sliding head 5 takes place pneumatically or hydraulically by means of a piston / cylinder unit, designated 23 in FIG. 6. Fig. 6 finally shows the arranged in line mold pots or mold parts 9 and the assignment of the needles 12 carried on the sliding head 5 to these mold pots 3. The sliding head 5 carries a row of molded needles 12 per row of molded parts 3, so that on the Sliding head 5 in the illustrated embodiment, a total of 20 needles are added. The molded parts 3 of both rows are accommodated on the press table 2 with the same lateral spacing A and the molding needles 12 are also at the same distance B from one another, the distance B being half the length of distance A is. The distance between the molding needles 12 is thus half the division of the molded parts 3. It goes without saying that the sliding head 5 has two rows of molding needles 12, each row of molding needles 12 each having 10 molding needles in a straight line. The shaping needles 12 of each row are located in a vertical plane above the associated shaping pots or shaped parts 3, as can best be seen in FIG. 5. This ensures that when the upper bear of the press is lowered, the shaping needles 12 received on the sliding head 5 are inserted exactly into the openings of the shaping pots 9.

Zwischen den gegenüberliegenden Formteilen 3 und an den bei­den Enden der Reihen 16 und 17 sind Greifeinrichtungen 24 vorgesehen, die am besten aus den Fig. 4 und 5 hervorgehen. Die Greifeinrichtungen 24 weisen aus Fig. 6 ersichtliche Klauen 25 auf. Die Klauen 25 sind oberhalb der Transportbän­der 18 angeordnet. Je Formtopf sind hierbei zwei Greifein­richtungen 24 ebenso wie zwei Transportbänder 18 zugeordnet, wobei jedoch die zwischen den paarweise gegenüberliegenden Formteilen 3 angeordneten Transportbänder 18 bzw. Greifein­richtungen 24 gemeinsam von den benachbarten Formtöpfen bzw. in Verbindung mit diesen benachbarten Formtöpfen benutzt wer­den. Insgesamt sind, wie Fig. 4 zeigt, für zehn Formtöpfe 9 bzw. Formteile 3 sechs Transportbänder 18 und zwölf Greifein­richtungen 24 vorgesehen.Gripping devices 24 are provided between the opposite molded parts 3 and at the two ends of the rows 16 and 17, which are best shown in FIGS. 4 and 5. The gripping devices 24 have claws 25 shown in FIG. 6. The claws 25 are arranged above the conveyor belts 18. Two gripping devices 24 as well as two conveyor belts 18 are assigned to each molding pot, but the conveyor belts 18 and gripping devices 24 arranged between the paired mold parts 3 are used jointly by the adjacent molding pots or in connection with these adjacent molding pots. Overall, as shown in FIG. 4, six conveyor belts 18 and twelve gripping devices 24 are provided for ten mold pots 9 or molded parts 3.

Die Betriebsweise der Presse ist wie folgt: Mit Abwärtsbewe­gung des Oberbären werden die mit den zehn Formtöpfen 9 aus­gerichteten zehn Formnadeln 12 in die Formtöpfe 9 bzw. in die darin aufgenommenen Gummihülsen 10 eingefahren, vgl. Fig. 3. Während des Einfüllvorgangs, der Verdichtung und der darauf­folgenden Entspannung sind die um die halbe Teilung B in Achsrichtung der Reihen 16 und 17 versetzten übrigen zehn Formnadeln 12 in Ausrichtung über den Transportbändern 18, wie am besten aus Fig. 6 hervorgeht. Wird nach dem Verdichten und dem Entspananen des Preßlings der Schiebekopf 5 zum Aus­ heben der Formnadeln 12 aus den Formtöpfen 9 nach oben be­wegt, so erfolgt gleichzeitig das Abheben der Formnadeln 12 von den Transportbändern 18, wobei beim Hochfahren die an den Formnadeln 12 noch anhaftenden Hülsen bzw. Preßlinge 20 abge­streift werden. Die in den Halteelementen 19 aufgenommenen Hülsen 20 werden nach dem Abheben der Formnadeln 12 entspre­chend der Taktbewegung der Transportbänder 18 aus der Presse herausgefördert. Danach wird der Schiebekopf 5 je nach Takt gemäß Fig. 6 nach links oder nach rechts in Achsrichtung der beiden Reihen 16 und 17 bewegt, so daß die an den Formnadeln 12 haftenden, soeben in der Form 13 hergestellten Preßlinge über die Förderbänder 18 bewegt werden. Nach Fig. 6 erfolgt die Bewegung nach links, wie strichliert dargestellt ist. Da­durch werden die zuvor über die Förderbänder ausgerichteten Formnadeln 12 über die Formtöpfe 9 gefahren, so daß mit der Abwärtsbewegung des Schließkopfs 5 einerseits die Formnadeln mit den daran haftenden Preßlingen auf die Förderbänder 18 und andererseits die zuvor mit den Förderbändern ausgerichte­ten Formnadeln in die Formtöpfe 9 gefahren werden. Nach Ver­dichtung und somit Herstellung der Preßlinge wird der Schließkopf 5 wieder angehoben und nunmehr um eine halbe Tei­lung, also um den Abstand B in Fig. 6 nach rechts bewegt, so daß also jeweils während des Abladens eines Preßlings gleich­zeitig die Herstellung eines Preßlings erfolgt. Selbstver­ständlich können in Abweichung des dargestellten Ausführungs­beispiels auch mehr als zwei Reihen von Formtöpfen und Form­nadeln Verwendung finden, ohne daß sich hierbei an einer Be­wegung des Schließkopfs 5 um den halben Abstand der Formtöpfe 9 in Achsrichtung der Reihen 16 und 17 etwas ändert.The operation of the press is as follows: With the upper bear moving downward, the ten shaping needles 12 aligned with the ten shaping pots 9 are inserted into the shaping pots 9 or into the rubber sleeves 10 accommodated therein, cf. Fig. 3. During the filling process, the compression and the subsequent relaxation, the remaining ten shaping needles 12, which are offset by half the division B in the axial direction of the rows 16 and 17, are in alignment above the conveyor belts 18, as best shown in FIG. 6. After compaction and despanning of the compact, the sliding head 5 is turned off lifting of the forming needles 12 from the forming pots 9 moves upward, the lifting of the forming needles 12 from the conveyor belts 18 takes place at the same time, the sleeves or compacts 20 still adhering to the forming needles 12 being stripped off when they are raised. The sleeves 20 accommodated in the holding elements 19 are conveyed out of the press after the shaping needles 12 have been lifted off in accordance with the cycle movement of the conveyor belts 18. Then, depending on the cycle according to FIG. 6, the sliding head 5 is moved to the left or to the right in the axial direction of the two rows 16 and 17, so that the compacts adhering to the forming needles 12 which have just been produced in the mold 13 are moved over the conveyor belts 18. 6, the movement to the left takes place, as shown in dashed lines. As a result, the molding needles 12 previously aligned with the conveyor belts are moved over the molding pots 9, so that with the downward movement of the closing head 5, the molding needles with the pressed articles adhering to them are moved onto the conveyor belts 18 and, on the other hand, the molding needles previously aligned with the conveyor belts into the molding pots 9 will. After compaction and thus production of the compacts, the closing head 5 is raised again and now moved to the right by half a division, that is to say by the distance B in FIG. 6, so that during the unloading of a compact the production of a compact takes place simultaneously. Of course, in deviation from the exemplary embodiment shown, more than two rows of molding pots and molding needles can also be used without any change in the movement of the closing head 5 by half the distance between the molding pots 9 in the axial direction of the rows 16 and 17.

Claims (8)

1. Isostatische Presse zur Herstellung von Preßlingen aus pulverförmigem, keramischem Material, insbesondere zur Herstellung von langgestreckten Hülsen für Batterien, mit einem Formnadeln tragenden Werkzeugteil, welches zum Schließen und Öffnen von Formen relativ zu einem Pressenteil, insbesondere Pressentisch, beweglich ist, auf dem Formteile in mindestens einer geradlinigen Reihe und mit in den Reihen gleichem seitlichen Abstand zueinander angeordnet sind, die zusammen mit darin ein­gefahrenen Formnadeln die Formen für die Hülsen begren­zen,
dadurch gekennzeichnet,
der Werkzeugteil (6) auf einem Schiebekopf (5) je Reihe von Formteilen (3) die zweifache Anzahl an Formnadeln (12) trägt, die entsprechend den Formteilen in Reihe angeordnet sind und in der Reihe einen Abstand zueinan­der aufweisen, der dem halben Abstand der Formteile (3) je Reihe (16, 17) entspricht, und daß der Schiebekopf (5) um den Abstand (B) der Formnadeln (12) zueinander in Achsrichtung der Reihe (16 bzw.17) und senkrecht zur Schließ- und Öffnungsbewegung der Presse hin- und her­bewegbar ist, so daß taktweise die mit den Formteilen (3) ausgerichteten Formnadeln (12) in eine Position in Achsrichtung der Reihe (16 bzw. 17) neben die Formteile (3) und die zuvor neben den Formteilen (3) positionier­ten Formnadeln (12) über die Formteile (3) bewegt wer­den und umgekehrt.1. Isostatic press for the production of compacts from powdered, ceramic material, in particular for the production of elongated sleeves for batteries, with a tool part carrying mold needles, which is movable for closing and opening molds relative to a press part, in particular press table, on the molded parts are arranged in at least one rectilinear row and with the same lateral spacing from one another in the rows, which, together with shaped needles inserted therein, limit the shapes for the sleeves,
characterized by
the tool part (6) on a sliding head (5) per row of molded parts (3) carries twice the number of molding needles (12), which are arranged in series according to the molded parts and have a distance from each other in the row that is half the distance of Molded parts (3) per row (16, 17) corresponds, and that the sliding head (5) can be moved back and forth by the distance (B) of the forming needles (12) to one another in the axial direction of the row (16 or 17) and perpendicular to the closing and opening movement of the press, so that the parts with the molded parts (3) aligned molding needles (12) in a position in the axial direction of the row (16 or 17) next to the molded parts (3) and the molded needles (12) previously positioned next to the molded parts (3) are moved over the molded parts (3) and vice versa. 2. Isostatische Presse nach Anspruch 1,
dadurch gekennzeichnet,
daß die Presse mehrere, vorzugsweise zwei Reihen (16, 17) von Formteilen (3) und Formnadeln (12) aufweist, welche parallel und versetzungsfrei zueinander angeord­net sind.2. Isostatic press according to claim 1,
characterized by
that the press has several, preferably two rows (16, 17) of molded parts (3) and molded needles (12), which are arranged parallel and without displacement to one another. 3. Isostatische Presse nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß sich zwischen den Formteilen (3) und an beiden En­den der Reihe(n) neben den in der Reihe außenliegenden Formteilen (3) sich senkrecht zur Achsrichtung der Reihe(n) (16 bzw. 17) erstreckende Transportbänder (18) vorgesehen sind, derart, daß sich zwischen zwei Trans­portbändern (18) jeweils ein Formteil (3) einer Reihe bzw. gegenüberliegende Formteile mehrerer Reihen (16, 17) befinden.3. Isostatic press according to claim 1 or 2,
characterized by
that conveyor belts (18) are provided between the molded parts (3) and at both ends of the row (s) in addition to the molded parts (3) lying outside in the row and perpendicular to the axial direction of the row (s) (16 and 17), in such a way that between two conveyor belts (18) there is in each case one molded part (3) of a row or opposite molded parts of several rows (16, 17). 4. Isostatische Presse nach einem der vorhergehenden An­sprüche,
dadurch gekennzeichnet,
daß in Achsrichtung neben den Formteilen (3) mit den Transportbändern (18) ausgerichtete Greifeinrichtungen (24) zum Abziehen der Hülsen (20) von den Formnadeln (12) vorgesehen sind.4. Isostatic press according to one of the preceding claims,
characterized by
that in the axial direction next to the molded parts (3) with the conveyor belts (18) aligned gripping devices (24) are provided for pulling the sleeves (20) from the molding needles (12). 5. Isostatische Presse nach einem der vorhergehenden An­ sprüche,
dadurch gekennzeichnet,
daß auf den Transportbändern (18) Halteelemente (19) zur Aufnahme der Preßlinge (20) vorgesehen sind, wobei der Abstand des Halteelements (19) zum benachbarten Formteil (3) den halben Abstand (B) benachbarter Form­teile (3) zueinander beträgt.5. Isostatic press according to one of the preceding An claims,
characterized by
that holding elements (19) for receiving the compacts (20) are provided on the conveyor belts (18), the distance between the holding element (19) and the adjacent molded part (3) being half the distance (B) between adjacent molded parts (3). 6. Isostatische Presse nach einem der vorhergehenden An­sprüche,
dadurch gekennzeichnet,
daß die Zuführleitungen (8) von den Füllbehältern (7) zu den Formen (13) zwischen den Transportbändern (18) angeordnet sind.6. Isostatic press according to one of the preceding claims,
characterized by
that the feed lines (8) from the filling containers (7) to the molds (13) are arranged between the conveyor belts (18). 7. Isostatische Presse nach einem der vorhergehenden An­sprüche,
dadurch gekennzeichnet,
daß der Schiebekopf (5) durch einen pneumatisch oder hydraulisch betätigten Kolben (23) um die Teilung (B) verschiebbar ist.7. Isostatic press according to one of the preceding claims,
characterized by
that the sliding head (5) is displaceable by a pneumatically or hydraulically actuated piston (23) around the division (B). 8. Isostatische Presse nach einem der vorhergehenden An­sprüche,
dadurch gekennzeichnet,
daß der den Schiebekopf (5) tragende Werkzeugteil (6) mit dem Oberbären der Presse gekoppelt und die Form­teile (3) auf dem feststehenden Pressentisch (2) ange­ordnet sind.8. Isostatic press according to one of the preceding claims,
characterized by
that the tool part (6) carrying the sliding head (5) is coupled to the upper bear of the press and the molded parts (3) are arranged on the fixed press table (2).
EP90107073A 1989-05-10 1990-04-12 Isostatic moulding apparatus for the production of compacted bodies of ceramic powder material Expired - Lifetime EP0396929B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915296 1989-05-10
DE3915296A DE3915296A1 (en) 1989-05-10 1989-05-10 ISOSTATIC PRESS FOR PRODUCING PRESSURES FROM POWDERED, CERAMIC MATERIAL

Publications (2)

Publication Number Publication Date
EP0396929A1 true EP0396929A1 (en) 1990-11-14
EP0396929B1 EP0396929B1 (en) 1992-06-24

Family

ID=6380411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107073A Expired - Lifetime EP0396929B1 (en) 1989-05-10 1990-04-12 Isostatic moulding apparatus for the production of compacted bodies of ceramic powder material

Country Status (6)

Country Link
US (1) US5080573A (en)
EP (1) EP0396929B1 (en)
JP (1) JPH03108504A (en)
CA (1) CA2016095A1 (en)
DE (2) DE3915296A1 (en)
ES (1) ES2032144T3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE469146B (en) * 1991-03-12 1993-05-17 Asea Brown Boveri HEAT ISOSTATIC PRESSURE INCLUDING AXIAL SEGMENTS WHICH ORGANIZED TO RECOVER RADIAL MOVEMENTS
US8303665B2 (en) * 2004-06-15 2012-11-06 Tornier Sas Glenoidal component, set of such components and shoulder prosthesis incorporating such a glenoidal component
CN102602026B (en) * 2012-03-28 2014-04-16 河北工业大学 Production device for powder compression molded products
CN112025929A (en) * 2020-07-30 2020-12-04 东台施迈尔新材料科技有限公司 Aluminum oxide ceramic production die-casting equipment
CN115534066A (en) * 2022-04-12 2022-12-30 宜兴市凯达耐火材料有限公司 Forming process of nanoparticle modified refractory brick
CN117359754B (en) * 2023-07-04 2024-04-02 广东冠星陶瓷企业有限公司 Isostatic pressing dry pressing forming system for ceramic tile production

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084932A (en) * 1976-05-20 1978-04-18 Olin Energy Systems, Ltd. Isostatic mold apparatus
GB1542511A (en) * 1975-06-24 1979-03-21 Amada Co Ltd Extendable apparatuses for use in metal processing machines
EP0038010A1 (en) * 1980-04-14 1981-10-21 COMPAGNIE GENERALE D'ELECTRICITE Société anonyme dite: Apparatus for moulding tubular parts by isostatic compression
DE3040876A1 (en) * 1980-10-30 1982-06-09 Kronimus & Sohn Betonsteinwerk und Baugeschäft GmbH & Co KG, 7551 Iffezheim METHOD FOR THE PRODUCTION OF ARTIFICIAL PAVING STONES USING CONCRETE MIX / DE

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE407175C (en) * 1924-12-18 Richard Creuzburg Friction press
DE693504C (en) * 1935-06-27 1940-07-11 Gen Motors Corp Device for molding ceramic bodies, in which finely powdered ceramic material is poured into the cavity of a mold block
DE678935C (en) * 1937-07-04 1939-07-25 Koenig & Bauer Schnellpressfab Hydraulic stamping press
US3557405A (en) * 1969-02-04 1971-01-26 Nat Forge Co Automated multicavity isostatic press
GB1383395A (en) * 1972-03-06 1974-02-12 Olin Energy Systems Ltd Isostatic moulding apparatus and mandrel assembly therefor
US4063941A (en) * 1976-12-06 1977-12-20 National Forge Company Method for loading and unloading an isostatic press for compression of pre-formed powder objects
DE3341959C1 (en) * 1983-11-21 1985-04-18 Eugen Dipl.-Ing. 8877 Burtenbach Bühler Device for producing moldings from dry, free-flowing molding compound, in particular ceramic molding compound. Keyword: Combined filling, pressing and removal tool

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1542511A (en) * 1975-06-24 1979-03-21 Amada Co Ltd Extendable apparatuses for use in metal processing machines
US4084932A (en) * 1976-05-20 1978-04-18 Olin Energy Systems, Ltd. Isostatic mold apparatus
EP0038010A1 (en) * 1980-04-14 1981-10-21 COMPAGNIE GENERALE D'ELECTRICITE Société anonyme dite: Apparatus for moulding tubular parts by isostatic compression
DE3040876A1 (en) * 1980-10-30 1982-06-09 Kronimus & Sohn Betonsteinwerk und Baugeschäft GmbH & Co KG, 7551 Iffezheim METHOD FOR THE PRODUCTION OF ARTIFICIAL PAVING STONES USING CONCRETE MIX / DE

Also Published As

Publication number Publication date
ES2032144T3 (en) 1993-01-01
DE3915296A1 (en) 1990-11-15
JPH03108504A (en) 1991-05-08
CA2016095A1 (en) 1990-11-10
US5080573A (en) 1992-01-14
EP0396929B1 (en) 1992-06-24
DE59000176D1 (en) 1992-07-30

Similar Documents

Publication Publication Date Title
DE102009013457B4 (en) Method and device for producing stone moldings for masonry blocks, in particular sand-lime bricks
EP0649715A1 (en) Device for making annular or tubular articles from concrete
EP0396929B1 (en) Isostatic moulding apparatus for the production of compacted bodies of ceramic powder material
DE2602547C3 (en) Molding machine for the production of boxless, stackable sand casting molds
DE102005031236B4 (en) Method and device for producing stone moldings for masonry blocks, in particular sand-lime bricks
DE2721874A1 (en) Foundry moulding machine with two sand shooters - simultaneously filling cope and drag frames mounted on two turntables
DE2906858A1 (en) Moulding press for glass, ceramics, or plastics etc. - are produced in one operation in cavity formed by hollowed pressurised rams passing through shear ring
DE2528645C3 (en) Device for the automatic production of boxless casting molds
DE4344636C1 (en) Pivot beam press for pressing ceramic form parts
EP0639435B1 (en) Press for moulding under pressure ceramic articles
DE265394C (en)
EP0327825A2 (en) Moulding machine
CH698834B1 (en) A method and apparatus for manufacturing green bricks for masonry stones, especially calcium silicate bricks.
DE2610977B1 (en) High speed sand moulding machine - with automatic moulding and assembly of drag and cope using two presses
DE3941170C2 (en)
DE1851963U (en) BRICK PRESS.
EP3739619A1 (en) Plate production system with ejection device
DE1759181C (en) Device for the production of insulating hollow blocks and insulating solid blocks
DE1205695B (en) Plant for the continuous production and pressing of molded bodies, in particular hollow bodies closed on one side made of glued wood chips, fibers or the like.
DD201375A1 (en) AUTOMATIC DEFORMING DEVICE FOR SECONDARY SHAPES
DE19514045A1 (en) Brick press
DE1156691B (en) Press for the production of perforated objects
DE2410384B1 (en) Pressing and vulcanizing system for the production of molded rubber parts
DE10152114A1 (en) Press arrangement, in particular for pressing ceramic compacts
DE2040302A1 (en) Molding machine for the production of hollow, reinforced molded bodies

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19901106

17Q First examination report despatched

Effective date: 19910802

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

REF Corresponds to:

Ref document number: 59000176

Country of ref document: DE

Date of ref document: 19920730

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2032144

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19930427

Year of fee payment: 4

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19940413

EAL Se: european patent in force in sweden

Ref document number: 90107073.0

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19950413

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19950421

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19960413

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19961227

EUG Se: european patent has lapsed

Ref document number: 90107073.0

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980401

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980623

Year of fee payment: 9

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990412

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990301

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990412

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050412