DE3024935C2 - Press tool for the production of shell-shaped pressed bodies, such as plates, plates, beakers, bowls or the like., Made of powdered, ceramic material - Google Patents

Press tool for the production of shell-shaped pressed bodies, such as plates, plates, beakers, bowls or the like., Made of powdered, ceramic material

Info

Publication number
DE3024935C2
DE3024935C2 DE3024935A DE3024935A DE3024935C2 DE 3024935 C2 DE3024935 C2 DE 3024935C2 DE 3024935 A DE3024935 A DE 3024935A DE 3024935 A DE3024935 A DE 3024935A DE 3024935 C2 DE3024935 C2 DE 3024935C2
Authority
DE
Germany
Prior art keywords
stamp
counter
plates
jacket
pressing
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
Application number
DE3024935A
Other languages
German (de)
Other versions
DE3024935A1 (en
Inventor
Des Erfinders Auf Nennung Verzicht
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
Priority to DE3024935A priority Critical patent/DE3024935C2/en
Priority to AT81104574T priority patent/ATE6914T1/en
Priority to EP81104574A priority patent/EP0043019B1/en
Publication of DE3024935A1 publication Critical patent/DE3024935A1/en
Application granted granted Critical
Publication of DE3024935C2 publication Critical patent/DE3024935C2/en
Expired 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
    • B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/025—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 whereby the material is transferred into the press chamber by relative movement between a ram and the press chamber

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Table Devices Or Equipment (AREA)

Abstract

1. A pressing tool for producing shell- or plate-like pressings, as for example crockery plates, beakers, cups, bowls and the like, from powder material, more specially of a ceramic nature, made up of a stamp (10) and a counter-stamp (11), whose facing end faces are responsible for forming the top and lower sides of the shell-like pressings on pressing the powder material placed therebetween, the stamp (10) and the counter stamp (11) being able to be moved along a level axis towards each other, the powder material being run into a space walled in by the end faces of the stamp and counter-stamp and by a ring-like die (12) placed round the stamp and the counter-stamp, said die being able to be moved into the filling position, characterized in that the die (12) has a shutt-off ring-like space (13) on its inner side, said space being in connection with a supply of the powder material, in that at least one of the edges of the end faces of the stamp (10) and the counter-stamp (11) is designed running out towards the edge of the other end face like a ring (at 20) and in that the stamp (10) and the counter-stamp (11) may be moved so far towards each other that a small axial ring-like gap is kept between the edges of their end faces.

Description

Mit einer solchen Ausbildung des Preßw^rkzeuges wird erreicht, daß die den Formraum begrenzende Funktion des verschleißanfälligen Metallmantels beim Preßvorgang durch die in der Ringkammer anstehende keramische Masse übernommen wird. Damit wird der Verschleiß reduziert and daraus folgt dann, daß einWith such a design of the press tool it is achieved that the function of the wear-prone metal shell limiting the mold space Pressing process is taken over by the pending ceramic mass in the annular chamber. This becomes the Reduced wear and it then follows that a

js Nacharbeiten der Ränder des Preßteils entfallen kann.js reworking the edges of the pressed part can be omitted.

Aus der DE-OS 26 57 993 ist zwar eine während des Einfüllvorganges des Keramikmaterials den Formraum umgebende Ringkammer vorgesehen. Diese wird jedoch vor dem Verpressen des Materials weggefahreii und durch einen über den Ringspalt verschobenen Mantel ersetzt so daß sich dort ähnliche nachteilige Verhältnisse ergeben, wie bei dem Preßwerkzeug, von dem bei der Erfindung ausgegangen wird.From DE-OS 26 57 993 it is true that one during the filling process of the ceramic material is the mold space surrounding annular chamber provided. However, this is removed before the material is pressed and replaced by a jacket displaced over the annular gap so that there are similar disadvantageous conditions result, as in the pressing tool, from which the invention is based.

Bei einer Weiterbildung der Erfindung ist der Ab-Schluß der Ringkammer an deren den Ringspalt überstreifenden Seite elastisch ausgebildet
Die Zeichnung zeigt inIn a further development of the invention, the closure of the annular chamber is designed to be elastic on its side which straddles the annular gap
The drawing shows in

F i g. 1 einen Längsschnitt durch ein Preßwerkzeug an einer Presse, bei der Stempel und Gegenstempel längs einer horizontalen Achse aufeinanderzu bewegbar sind; F i g. 2 das Werkzeug nach F i g 1 beim Füllen;
F i g. 3 das Werkzeug im geschlossenen Zustand;
F i g. 4 das Werkzeug nach dem Anlegen des hydrostatischen Druckes; und inF i g. 1 shows a longitudinal section through a pressing tool on a press, in which the punch and counter punch can be moved towards one another along a horizontal axis; F i g. 2 the tool according to FIG. 1 during filling;
F i g. 3 the tool in the closed state;
F i g. 4 the tool after the hydrostatic pressure has been applied; and in

Fig.5 die Entnahme des fertigen Preßkörpers aus dem Werkzeug.5 shows the removal of the finished compact from the tool.

Das in den Figuren wiedergegebene Preßwerkzeug dient zur Herstellung von Tellern aus pulverförmiger keramischer Masse. Das Preßwe^kzeug enthält einen Stempel 10, einen Gegenstempel 11 und einen den Stempel 10 umgebenden Mantel !2, der auf dem Stempel verschiebbar ist.The pressing tool shown in the figures is used to produce plates from powdery ceramic mass. The Preßwe ^ kzeug contains a punch 10, a counter punch 11 and a Stamp 10 surrounding jacket! 2, which is displaceable on the stamp.

Beim wiedergegebenen Ausführungsbeispiel weist der Stempel 10 einen kleineren Durchmesser als der Gegenstempel 11 auf. Der Mantel 12 besteht aus einem Ringkörper mit einer zylindrischen Führungsöffnung mit einem Durchmesser, der geringfügig größer als der Durchmesser des Stempels 10 ist. In die Innenfläche des Mantels 12 ist ein« Ringkammer 13 mit rechteckigem Querschnitt eingearbeitet. Diese Ringkammer 13 kann über eine radiale Zuführungsöffnung 14 mit einem nicht gezeichneten Vorratsbehälter für das pulverförmige keramische Preßgut verbunden sein. Die Ringkammer 13 ist an der dem Gegenstempel 11 zugewandten Seite durch einen biegsamen Ring 15 aus elastischem Gummi oder einem ähnlichen entsprechenden Material abgeschlossen. Dieser Ring kann sich bei der Verschiebung des Mantels 12 in Richtung auf den Gegenstempel 11 beim Auftreffen auf dem Gegenstempe! verformen, indem er sich teilweise über den abgerundeten Rand dieses Gegenstempels legt, wie die Fig.2 und 3 deutlich erkennen lassen. Ein ringförmiger Belag 16 aus elastischem Gummi oder Filz sitzt in einer entsprechenden Rinne im Mantel 12 und begrenzt den Austritt keramisehen Pulvers.In the illustrated embodiment, the punch 10 has a smaller diameter than that Counter stamp 11 on. The jacket 12 consists of a Annular body with a cylindrical guide opening with a diameter slightly larger than that Diameter of the punch 10 is. In the inner surface of the Jacket 12 is incorporated an "annular chamber 13 with a rectangular cross-section. This annular chamber 13 can Via a radial feed opening 14 with a storage container (not shown) for the powdery ceramic Be compacted connected. The annular chamber 13 is on the side facing the counter punch 11 terminated by a flexible ring 15 made of elastic rubber or a similar corresponding material. This ring can move when the jacket 12 is moved in the direction of the counter punch 11 when hitting the counterstempe! deform by it lies partially over the rounded edge of this counter-punch, as clearly shown in FIGS reveal. An annular covering 16 made of elastic rubber or felt is seated in a corresponding one Groove in the jacket 12 and limits the exit of ceramic powder.

Die Stirnseite des Stempels 10 formt die Oberseite des Tellers aus und ist mit einer dicken elastischen Gummiplatte 19 bedeckt, die selbstreinigend v/irkt und in derThe face of the stamp 10 forms the top of the plate and is covered with a thick elastic rubber plate 19 covered, the self-cleaning v / irkt and in the

Nähe des Randes ringförmig vorsteht, wie man bei 20 erkennt. Dadurch ergibt sich an den Preßkörpern ein abgerundeter Rand, der keine oder nur noch geringe Nacharbeitung erforderlich macht.Near the edge protrudes in a ring, as shown at 20 recognizes. This results in a rounded edge on the pressed bodies, which has little or no Makes reworking necessary.

Die Stirnseite des Gegenstempels 11 ist entsprechend der Unterseite des Tellers beim wiedergegebenen Ausführungsbeispiel ausgeformt und weist eine starke Abfasung zur zylindrischen Fläche hin auf. Auch sie ist mit einer elastischen Gummiplatte 22 bedeckt Der kreisförmige Rand der Platte ist im spitzen Winkel gebogen und hat einen umgestülpten Rand, der zwischen zwei kegelstumpfförmigen Blöcken 23 und 24 gehalten ist, die ineinandergeschoben und durch Schrauben miteinander verbunden werden.The face of the counter punch 11 is corresponding the underside of the plate in the illustrated embodiment shaped and has a strong chamfer towards the cylindrical surface. She is also with an elastic rubber plate 22 covered. The circular edge of the plate is bent at an acute angle and has an everted edge that is between two frustoconical Blocks 23 and 24 are held, which are nested and screwed together get connected.

Der Block 23 ist in seinem Mittelteil mit mehreren Leitungen versehen, die die Verbindung zwischen der Stirnseite des Blockes 23 und einer Kammer 26 herstellen, in die Druckmittel eingeführt wird. Dadurch löst sich die Platte 22 vom Block 23 und drückt gegen die vorverdichtete keramische Pulvermasse, wodurch der Preßvorgang hydrostatisch beendet wird.The block 23 is provided in its central part with several lines that the connection between the Produce the end face of the block 23 and a chamber 26 into which pressure medium is introduced. This triggers the plate 22 from the block 23 and presses against the pre-compressed ceramic powder mass, whereby the Pressing process is ended hydrostatically.

F i g. 5 zeigt die Trennung von Stempel und Gegenstempel und damit die Freigabe des fertigen Preßkörpers. F i g. 5 shows the separation of stamp and counter stamp and thus the release of the finished compact.

2525th

Hierzu 5 Blatt ZeichnungenIn addition 5 sheets of drawings

3030th

4040

4545

5555

6060

Claims (2)

Patentansprüche:Patent claims: 1. Preßwerkzeug für eine Presse zur Herstellung von schalenförmigen Preßkörpern, wie Platten, Tellern, Bechern, Schüsseln od. dgl, aus pulverförmigem keramischem Material, bestehend aus einem Stempel und einem Gegenstempel, die längs einer horizontal liegenden Achse aufeinander zu bewegbar sind, und deren aufeinander zuweisende Stirnflächen beim Pressen des zwischen sie eingefüllten pulverrörmigen Materials, die Ober- und Unterseite des schalenförmigen Preßkörpers ausbilden, und aus einem den Stempel und Gegenstempel ringförmig umgebenden Mantel zur äußeren Begrenzung des Formraums, gekennzeichnet durch die Kombination der Merkmale1. Press tool for a press for the production of shell-shaped pressed bodies, such as plates, plates, Cups, bowls or the like, made of powdered ceramic material, consisting of a Stamp and a counter stamp, which can be moved towards one another along a horizontal axis are, and their mutually facing end faces when pressing the powdery filler between them Material forming the top and bottom of the shell-shaped pressed body, and from one the stamp and counter stamp ring-shaped surrounding jacket to the outer boundary of the Form space, characterized by the combination of features a) der Mantel (12) weist eine in sich geschlossene Ringkammer (13) auf, die mit einem Vorratsbehälter iur das pulverförmige Material in Verbindung steht, unda) the jacket (12) has a self-contained annular chamber (13) which is connected to a storage container iur the powdery material is connected, and b) mindestens einer der Ränder der Stirnflächen vom Stempel (10) bzw. vom Gegenstempel (11) steht in Richtung auf den Rand der anderen Stirnfläche ringförmig unter Belassung eines geringen axialen Ringspaltes in der Vorpreßstellung vor, wobei die pulverförmige Füllung der Ringkammer (13) den den Ringspalt nach außen begrenzenden Teil des Mantels bildet.b) at least one of the edges of the end faces of the punch (10) or of the counter punch (11) stands in the direction of the edge of the other end face in a ring, leaving one small axial annular gap in the pre-pressing position, the powdery filling the annular chamber (13) forms the part of the jacket that delimits the annular gap to the outside. 2. Preßwerkzeug nach Anspruch 1, dadurch gekennzeichnet, daß d,r Abst'iluß der Ringkammer (13) an deren den Rinjspalt überstreifenden Seite elastisch (bei 15) ausgebildet is2. Press tool according to claim 1, characterized in that d, r Abst'iluß the annular chamber (13) on the side which straddles the Rinjspalt elastic (at 15) is formed Die Erfindung betrifft ein Preßwerkzeug für eine Presse zur Herstellung von schalenförmigen Preßkörpern, wie Platten, Tellern, Bechern, Schüsseln od. dgl. aus puiverförmigem keramischem Material, bestehend aus einem Stempel und einem Gegenstempel, die längs einer horizontal liegenden Achse aufeinander zu bewegbar sind und deren aufeinander zuweisende Stirnflächen beim Pressen des zwischen sie eingefüllten pulverförmigen Materials die Ober- und Unterseite des schalenförmigen Preßkörpers ausbilden, und aus einem den Stempel und Gegenstempel ringförmig umgebenden Mantel zur äußeren Begrenzung des Formraums.The invention relates to a pressing tool for a press for the production of shell-shaped pressed bodies, such as plates, plates, mugs, bowls or the like. Made of powder-shaped ceramic material, consisting from a punch and a counter punch, which can be moved towards one another along a horizontal axis are and their facing end faces when pressing the powder filled between them Material form the top and bottom of the cup-shaped pressed body, and one of the Stamp and counter stamp ring-shaped surrounding jacket for the outer delimitation of the mold space. Ein solches Preßwerkzeug ist beispielsweise aus der DE-OS 24 37 852 bekannt. Dort wird beim Preßvorgang die äußere Formenbegrenzung durch einen metallischen Mantel in Form einer Matrize gebildet. Beim Einsatz dieser Presse ist dieser metallische Mantel einem Verschleiß ausgesetzt, der bei längerer Einsatzdauer zu einer Gratbildung an den äußeren Rändern der Preßlinge führen kann.Such a pressing tool is known from DE-OS 24 37 852, for example. There is during the pressing process the outer limit of the shape is formed by a metallic jacket in the form of a die. When using In this press, this metallic jacket is subject to wear and tear, which increases with prolonged use can lead to burr formation on the outer edges of the compacts. Aufgabe der Erfindung ist es, das Preßwerkzeug so auszubilden, daß fehlerhafte Preßkörper möglichst vermieden werden und damit ein Nacharbeiten der Ränder entfallen kann.The object of the invention is to design the pressing tool in such a way that defective pressed bodies are avoided as far as possible and so there is no need to rework the edges. Diese Aufgabe wird erfindungsgemäß gelöst durch die Kombination der MerkmaleAccording to the invention, this object is achieved by the combination of the features a) der Mantel weist eine in sich geschlossene Ringkammer auf, die mit einem Vorratsbehälter für das pulverförmige Material in Verbindung steht, unda) the jacket has a self-contained annular chamber with a storage container for the powdery material communicates, and b) mindestens einer der Ränder der Stirnflächen vom Stempel bzw. vom Gegenstempel steht in Richtung auf den Rand der anderen Stirnfläche ringförmig unter Belassung eines geringen axialen Ringspaltes in der Vorpreßstellung vor, wobei die pulverförmige Füllung der Ringkammer den den Rirrgspalt nach außen begrenzenden Teil des Mantels bildet.b) at least one of the edges of the end faces of the punch or the counter punch is in the direction on the edge of the other end face in a ring shape, leaving a small axial annular gap in the pre-pressing position, the powdery filling of the annular chamber denying the Rirrgspalt forms the outwardly delimiting part of the jacket.
DE3024935A 1980-07-01 1980-07-01 Press tool for the production of shell-shaped pressed bodies, such as plates, plates, beakers, bowls or the like., Made of powdered, ceramic material Expired DE3024935C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE3024935A DE3024935C2 (en) 1980-07-01 1980-07-01 Press tool for the production of shell-shaped pressed bodies, such as plates, plates, beakers, bowls or the like., Made of powdered, ceramic material
AT81104574T ATE6914T1 (en) 1980-07-01 1981-06-15 PRESSING TOOL FOR THE PRODUCTION OF SHELL-SHAPED PRESSING ELEMENTS, IN PARTICULAR PLATES, PLATES, CUPS, BOWLS OR THE LIKE. MADE OF POWDER, PREFERABLY CERAMIC MATERIAL.
EP81104574A EP0043019B1 (en) 1980-07-01 1981-06-15 Press tool for the manufacture of disk-like pressed bodies, particularly plates, dinner plates, cups, dishes or the like from pulverous, preferably ceramic material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3024935A DE3024935C2 (en) 1980-07-01 1980-07-01 Press tool for the production of shell-shaped pressed bodies, such as plates, plates, beakers, bowls or the like., Made of powdered, ceramic material

Publications (2)

Publication Number Publication Date
DE3024935A1 DE3024935A1 (en) 1982-01-28
DE3024935C2 true DE3024935C2 (en) 1986-07-24

Family

ID=6106161

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3024935A Expired DE3024935C2 (en) 1980-07-01 1980-07-01 Press tool for the production of shell-shaped pressed bodies, such as plates, plates, beakers, bowls or the like., Made of powdered, ceramic material

Country Status (3)

Country Link
EP (1) EP0043019B1 (en)
AT (1) ATE6914T1 (en)
DE (1) DE3024935C2 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3144678A1 (en) * 1981-11-10 1983-05-19 Eugen Dipl.-Ing. 8871 Burtenbach Bühler METHOD AND DEVICE FOR THE PRODUCTION OF MOLDINGS FROM A GIANT CAPABILITY
DE3332277A1 (en) * 1983-03-30 1984-10-04 Dorst - Maschinen- und Anlagen-Bau Otto Dorst u. Dipl. Ing. Walter Schlegel GmbH & Co, 8113 Kochel PRESS FOR PRODUCING DISHES OD. DGL.
DE3339487A1 (en) * 1983-10-31 1985-05-15 Bühler, Eugen, Dipl.-Ing., 8877 Burtenbach METHOD FOR PRODUCING A DRY-COMPRESSED MOLD FROM DRY, RIIBLE-MOLDING MATERIAL, IN PARTICULAR CERAMIC MOLDING MATERIAL
DE3512852A1 (en) * 1985-04-10 1986-10-16 Dorst - Maschinen- und Anlagen-Bau Otto Dorst u. Dipl. Ing. Walter Schlegel GmbH & Co, 8113 Kochel PRESSING TOOL FOR THE PRODUCTION OF SHELL-SHAPED PRESSING BODIES, IN PARTICULAR PLATES, PLATES, BOWLS, BOWLS OR THE LIKE. MADE OF POWDER-SHAPED, PREFERABLY CERAMIC MATERIAL
DE3524779A1 (en) * 1985-07-11 1987-01-15 Laeis Gmbh PRESS FOR MAKING DISHES OR THE LIKE
DE3626365A1 (en) * 1986-08-04 1988-02-11 Dorst Masch & Anlagen DEVICE AND METHOD FOR THE PRODUCTION OF DEEP CYLINDRICAL OR TAPERED MOLDED BODIES PROVIDED WITH A LATERAL CONTINUATION, IN PARTICULAR HANGING CUPS
US5585124A (en) * 1994-12-29 1996-12-17 Andritz Sprout-Bauer, Inc. Quill shafted pellet mill
US7972129B2 (en) * 2005-09-16 2011-07-05 O'donoghue Joseph Compound tooling system for molding applications
CN113459249B (en) * 2021-05-31 2022-10-14 应县欣宇陶瓷有限公司 Ceramic bowl forming machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1863854A (en) * 1929-11-04 1932-06-21 Champion Porcelain Company Method of and apparatus for shaping articles
DE1235787B (en) * 1961-03-13 1967-03-02 Keramische Ind Bedarfs Kom Ges Drying press for making dishes
IT992997B (en) * 1973-08-17 1975-09-30 Bettonica L HYDRAULIC PRESS FOR THE MANUFACTURE OF CERAMIC AND SIMILAR TILES AND PLATES
DE2515286A1 (en) * 1975-04-08 1976-10-21 Dorst Keramikmasch Dry compaction press for plate manufacture - has multi-component dies with internal designs incorporating plate foot
DE2657993A1 (en) * 1976-12-21 1978-06-22 Netzsch Maschinenfabrik Ceramic crockery press matrix and patrix - has diaphragm held around rim of matrix over suction chamber below (BR 2.5.78)

Also Published As

Publication number Publication date
ATE6914T1 (en) 1984-04-15
DE3024935A1 (en) 1982-01-28
EP0043019A1 (en) 1982-01-06
EP0043019B1 (en) 1984-04-04

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