EP0396929B1 - Dispositif de compression isostatique pour la fabrication de pièces moulées en matière céramique pulvérulente - Google Patents

Dispositif de compression isostatique pour la fabrication de pièces moulées en matière céramique pulvérulente Download PDF

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Publication number
EP0396929B1
EP0396929B1 EP90107073A EP90107073A EP0396929B1 EP 0396929 B1 EP0396929 B1 EP 0396929B1 EP 90107073 A EP90107073 A EP 90107073A EP 90107073 A EP90107073 A EP 90107073A EP 0396929 B1 EP0396929 B1 EP 0396929B1
Authority
EP
European Patent Office
Prior art keywords
molding
needles
line
molding parts
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.)
Expired - Lifetime
Application number
EP90107073A
Other languages
German (de)
English (en)
Other versions
EP0396929A1 (fr
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/fr
Application granted granted Critical
Publication of EP0396929B1 publication Critical patent/EP0396929B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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.
  • 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.
  • 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 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.
  • 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.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Press Drives And Press Lines (AREA)

Claims (8)

1. Presse isostatique pour fabriquer des pièces moulées en un matériau céramique pulvérulent, notamment pour fabriquer des douilles allongées pour des batteries, comportant une partie formant outil (6) portant des aiguilles de moule (12) et déplaçable, pour la fermeture et l'ouverture de moules, par rapport à une partie de la presse, notamment la table (2) de la presse, sur laquelle des éléments de moule (3) sont disposés suivant au moins une rangée rectiligne (16,17), avec un intervalle latéral réciproque identique dans les rangées (16,17), ces éléments de moule délimitant, avec des aiguilles de moule (12) insérées dans les éléments de moule, les moules pour les douilles,
caractérisée en ce que
la partie formant outil (6) porte, sur une tête coulissante (5), pour chaque rangée d'éléments de moule (3), un nombre double d'aiguilles de moule (12), qui sont disposées suivant une rangée et possèdent, dans la rangée, un écartement réciproque qui correspond à la moitié de la distance entre les parties de moule (3) dans chaque rangée (16,17), et que la tête coulissante (5) est déplaçable en va-et-vient, sur la distance (B) entre les aiguilles de moule (12), dans la direction axiale de la rangée (16,17) et perpendiculairement au déplacement de fermeture et d'ouverture de la presse, de sorte que les aiguilles de moule (12) alignées avec les éléments de moule (3) sont amenées d'une manière cadencée dans une position dans la direction axiale de la rangée (16,17) à côté des éléments de moule (3), et que les aiguilles de moule (12) positionnées antérieurement à côté des éléments de moule (3) sont déplacées au-dessus des éléments de moule (3), et inversement.
2. Presse isostatique selon la revendication 1,
caractérisée en ce que
la presse comporte plusieurs et de préférence deux rangées (16,17) d'éléments de moule (3) et d'aiguilles de moule (12), qui sont parallèles et sans décalage réciproque.
3. Presse isostatique selon la revendication 1 ou 2,
caractérisée en ce
qu'il est prévu, entre les éléments de moule (3) et aux deux extrémités de la ou des rangées, à côté des éléments de moule (3) extérieurs dans la rangée, des bandes convoyeuses (18), qui s'étendent perpendiculairement à la direction de l'axe de la ou des rangées (16,17) de telle sorte qu'entre deux bandes convoyeuses (18) sont disposés respectivement des éléments de moule (3) d'une rangée ou des éléments de moule opposés de plusieurs rangées (16,17).
4. Presse isostatique selon l'une des revendications précédentes,
caractérisée en ce
qu'il est prévu, dans la direction axiale, à côté des éléments de moule (3), des dispositifs de préhension (24) alignés avec les bandes convoyeuses (18) et servant à retirer les douilles (20) des aiguilles de moule (12).
5. Presse isostatique selon l'une des revendications précédentes,
caractérisée en ce
qu'il est prévu, sur les bandes convoyeuses (18), des éléments de retenue (19) servant à recevoir les pièces moulées (20), la distance entre l'élément de retenue (19) et l'élément de moule voisin (3) étant égale à la moitié de la distance (B) entre des éléments de moule voisins (3).
6. Presse isostatique selon l'une des revendications précédentes,
caractérisée en ce que
les canalisations d'alimentation (B) partant des récipients de remplissage (7) pour aboutir aux moules (13) sont disposées entre les bandes convoyeuses (18).
7. Presse isostatique selon l'une des revendications précédentes,
caractérisée en ce que
la tête coulissante (5) peut être déplacée sur le pas (B) par un piston (23) actionné pneumatiquement ou hydrauliquement.
8. Presse isostatique selon l'une des revendications précédentes,
caractérisée en ce que
la partie formant outil (6), qui porte la tête coulissante (5), est couplée aux masses tombantes supérieures de la presse et que les éléments de moule (3) sont installés sur la table fixe (2) de la presse.
EP90107073A 1989-05-10 1990-04-12 Dispositif de compression isostatique pour la fabrication de pièces moulées en matière céramique pulvérulente Expired - Lifetime EP0396929B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3915296A DE3915296A1 (de) 1989-05-10 1989-05-10 Isostatische presse zur herstellung von presslingen aus pulverfoermigem, keramischen material
DE3915296 1989-05-10

Publications (2)

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

Family

ID=6380411

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107073A Expired - Lifetime EP0396929B1 (fr) 1989-05-10 1990-04-12 Dispositif de compression isostatique pour la fabrication de pièces moulées en matière céramique pulvérulente

Country Status (6)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE469146B (sv) * 1991-03-12 1993-05-17 Asea Brown Boveri Varmisostatisk press innefattande axiella segment vilka aer anordnade att upptaga radiella roerelser
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 (zh) * 2012-03-28 2014-04-16 河北工业大学 一种粉料模压成型产品的生产装置
CN112025929A (zh) * 2020-07-30 2020-12-04 东台施迈尔新材料科技有限公司 一种氧化铝陶瓷生产压铸设备
CN114701044B (zh) * 2022-04-12 2022-12-09 宜兴市凯达耐火材料有限公司 一种纳米颗粒改性耐火砖成型工艺、系统
CN117359754B (zh) * 2023-07-04 2024-04-02 广东冠星陶瓷企业有限公司 一种瓷砖生产用等静压干压成型系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE407175C (de) * 1924-12-18 Richard Creuzburg Friktionspresse
DE693504C (de) * 1935-06-27 1940-07-11 Gen Motors Corp Vorrichtung zum Formen keramischer Koerper, bei der fein gepulverter keramischer Stoff in die Hoehlung eines Formblockes eingefuellt wird
DE678935C (de) * 1937-07-04 1939-07-25 Koenig & Bauer Schnellpressfab Hydraulische Praegepresse
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
JPS52759A (en) * 1975-06-24 1977-01-06 Tadashi Amano Freely stretchable metal mold
GB1512489A (en) * 1976-05-20 1978-06-01 Olin Energy Systems Ltd Isostatic moulding apparatus
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
FR2480172A1 (fr) * 1980-04-14 1981-10-16 Comp Generale Electricite Dispositif de moulage par compression isostatique
DE3040876A1 (de) * 1980-10-30 1982-06-09 Kronimus & Sohn Betonsteinwerk und Baugeschäft GmbH & Co KG, 7551 Iffezheim Verfahren zur herstellung von kuenstlichen pflastersteinen unter verwendung von betonmischung/en
DE3341959C1 (de) * 1983-11-21 1985-04-18 Eugen Dipl.-Ing. 8877 Burtenbach Bühler Vorrichtung zur Herstellung von Formlingen aus trockener,rieselfaehiger Formmasse,insbesondere keramischer Formmasse Stichwort:Kombiniertes Fuell-,Press- und Entnahmewerkzeug

Also Published As

Publication number Publication date
US5080573A (en) 1992-01-14
CA2016095A1 (fr) 1990-11-10
ES2032144T3 (es) 1993-01-01
DE3915296A1 (de) 1990-11-15
JPH03108504A (ja) 1991-05-08
EP0396929A1 (fr) 1990-11-14
DE59000176D1 (de) 1992-07-30

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