FR2726498A3 - Device for single operation moulding of ceramic cups - Google Patents
Device for single operation moulding of ceramic cups Download PDFInfo
- Publication number
- FR2726498A3 FR2726498A3 FR9413518A FR9413518A FR2726498A3 FR 2726498 A3 FR2726498 A3 FR 2726498A3 FR 9413518 A FR9413518 A FR 9413518A FR 9413518 A FR9413518 A FR 9413518A FR 2726498 A3 FR2726498 A3 FR 2726498A3
- Authority
- FR
- France
- Prior art keywords
- punch
- pressing
- single operation
- plate
- compression
- 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
Links
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
- 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
- B28B3/08—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 two or more rams per mould
- B28B3/086—The rams working in different directions
Landscapes
- 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)
Abstract
Description
DISPOSITIF POUR LE MOULAGE EN UNE SEULE OPERATION
DE RECIPIENTS EN CERAMIQUE AVEC OU SANS ANSES
DESCRIPTION
La présente invention concerne un dispositif pour mouler en une seule opération des récipients en céramique avec ou sans anses en utilisant les effets combinés du pressage conventionnel entre deux poinçons et du compactage isostatique ,chacun des deux procédés étant largement répandu
La fabrication de ces produits est effectuée le plus souvent par calibrage de pâte dans des moules en plâtre,ce qui implique l'emploi de machines encombrantes notamment pour assurer la phase sèchage du procédé
Les procédés en pate ,notamment dans le cas des tasses ,pour des raisons de garantie de la géométrie,exigent la fabrication séparée de l'anse et du bassin et donc une opération d'assemblage par collage des deux parties.DEVICE FOR MOLDING IN ONE OPERATION
CERAMIC CONTAINERS WITH OR WITHOUT HANDLES
DESCRIPTION
The present invention relates to a device for molding in a single operation ceramic containers with or without handles using the combined effects of conventional pressing between two punches and isostatic compacting, each of the two methods being widely used
The manufacture of these products is most often carried out by sizing of paste in plaster molds, which implies the use of bulky machines in particular to ensure the drying phase of the process.
The paste processes, in particular in the case of cups, for reasons of guaranteeing the geometry, require the separate manufacture of the handle and the basin and therefore an assembly operation by bonding the two parts.
De plus comme pour tous les procédés qui font appel aux moules en plâtre il y a lieu de considérer toutes les contraintes qui pèsent sur la création ,le stockage et le renouvellement des gammes de moules.In addition, as with all the processes which use plaster molds, all the constraints weighing on the creation, storage and renewal of the range of molds must be considered.
Le dispositif selon l'invention permet de remédier aux inconvénients des procédés en pâte.Il comporte un moule à double effet un effet de compression entre deux poinçons permettant de compacter le fond de la pièce,un effet de compression isostatique en moule sec permettant de mouler le bassin et l'anse.Le dispositif doit être utilisé sur une presse comportant les éléments classiques suivants:
démouleur passant au travers du plateau inférieur
distribution de liquide sous pression telle qu'habituellement
prévue pour la compression isostatique.The device according to the invention overcomes the drawbacks of the dough processes. It includes a double-effect mold, a compression effect between two punches making it possible to compact the bottom of the part, an isostatic compression effect in a dry mold making it possible to mold. the basin and the handle. The device must be used on a press comprising the following conventional elements:
demoulder passing through the lower plate
distribution of pressurized liquid as usual
intended for isostatic compression.
dispositif de remplissage volumétrique pour matière pulvérulante ou en
granulé
Les dessins annexés illustrent l'invention: la figure 1 représente en coupe un moule pour tasse,le plan de coupe etant perpendiculaire au plan de l'anse;la demi vue à gauche représente le moule ouvert prêt à recevoir la matière ;la demi vue de droite représente le moule fermé après compression.volumetric filling device for powdery material or
granule
The accompanying drawings illustrate the invention: FIG. 1 represents a cup mold in section, the cutting plane being perpendicular to the plane of the handle; the half view on the left represents the open mold ready to receive the material; the half view on the right represents the closed mold after compression.
La figure 2 représente le même moule en coupe ,le plan de coupe coincidant avec celui de l'anse;la demi vue à gauche montre le moule fermé après compression;la demi vue à droite montre le moule ouvert prêt à recevoir la matière.Figure 2 shows the same mold in section, the cutting plane coinciding with that of the handle; the half view on the left shows the mold closed after compression; the half view on the right shows the open mold ready to receive the material.
la figure 3 représente l'ensemble du dispositif inséré entre les plateaux
P1, P2 d'une presse la demi vue à gauche montre le dispositif en position d'extraction de la pièce pressée le poiçon inférieur étant à son point bas la demi vue à droite montre le dispositif en position de remplissage en référence à ces dessins le dispositif comporte une cavité de moulage 1) constituée d'une virole en acier sur laquelle sont fixés par vis deux couvercles ou flasques (2)et( 3) également en acier;å l'intérieur de la virole se trouve une membrane en élastomère(4)dont la forme a été prévue pour donner après compression isostatique de la matière qui la garnira la forme du bassin de la tasse avec son anse;le joint de pression est assuré par le serrage de la membrane entre les couvercles ou flasques(2)et(3) et la virole;;le fluide de compression arrive par le conduit(5) Le poiçon supérieur(6)descend jusqu'à l'appui de la bague(7) sur le couvercle(2)
La bague de fond(l2)est solidaire de la plaque(l0),l'ensemble coulissant par rapport au poinçon inférieur(8);en position haute le poinçon inférieur (8) vient en butée par sa collerette(l4)la limitation de la course etant assurée par les épaisseurs cumulées de la plaque(l0) et des cales(9) la descente en position basse de l'ensemble poinçon(8)et plaque bague de fond(l0),(12)assure l'extraction::la plaque(l0)vient buter sur le bati(l3) tandis que le poinçon(8)pousuit sa course jusqu'à la butée de la collerette(l4);le poinçon s'est alors extrait de la pièce moulée et celle-ci peut être évacuée suivant la flèche F;le bati(13) est ajouré à cet effet.Figure 3 shows the entire device inserted between the plates
P1, P2 of a press, the half view on the left shows the device in the position for extracting the pressed part, the lower punch being at its lowest point, the half view on the right shows the device in the filling position with reference to these drawings. device comprises a molding cavity 1) consisting of a steel ferrule on which are fixed by screws two covers or flanges (2) and (3) also made of steel; inside the ferrule is an elastomer membrane ( 4) whose shape has been designed to give, after isostatic compression of the material which will garnish it, the shape of the basin of the cup with its handle; the pressure seal is ensured by the tightening of the membrane between the covers or flanges (2) and (3) and the ferrule; the compression fluid arrives via the conduit (5) The upper punch (6) descends until the ring (7) rests on the cover (2)
The bottom ring (l2) is integral with the plate (l0), the assembly sliding relative to the lower punch (8); in the high position the lower punch (8) abuts by its flange (l4) limiting the stroke being provided by the cumulative thicknesses of the plate (l0) and of the shims (9) the descent into the low position of the punch assembly (8) and bottom ring plate (l0), (12) ensures the extraction: : the plate (l0) abuts on the frame (l3) while the punch (8) continues its race until the stop of the flange (l4); the punch is then extracted from the molded part and this- it can be evacuated according to arrow F; the frame (13) is perforated for this purpose.
Le tiroir(l4) fait partie de l'équipement de la presse;il est animé d'un mouvement de va et vient lui permettant de déverser la matière dans la cavité du moule;cette opération s'effectue lorsque le poinçon supérieur est en position haute, le tiroir venant se positionner au dessus de la cavité avant de se retirer.The drawer (l4) is part of the press equipment; it is moved back and forth allowing it to pour the material into the mold cavity; this operation is carried out when the upper punch is in position high, the drawer coming to position above the cavity before withdrawing.
Le cycle de fonctionnement du dispositif selon l'invention est le suivant:
a)remplissage de la cavité; la configuration est celle de la partie
droite de la figure(3)
b)fermeture du moule :le poinçon supérieur(6)vient en appui sur le
couvercle(2)comprimant la matière contre le poinçon inférieur(8)
c)compactage isostatique par admission du fluide sous pression par
l'alimentation(5)
d)décompression par évacuation du fluide vers(5)
e)relevage du poinçon supérieur(6)
f)démoulage: :le poinçon(8) vient en position basse en butée sur sa
collerette(l4)la plaque(l0)restant en appui sur la butée(l3)
g)évacuation de la pièce compactée par des moyens manuels ou
mécaniques
h)remontée en position haute du poinçon(8) pour un nouveau cycle
Selon d'autres variantes non illustrées ,le dispositif peut s'adapter au moulage en une seule opération de récipients les plus divers munis ou non d'anses pour autant que la forme permette
a)l'extraction de la pièce par le bas de l'alvéole
b)l'extraction du poinçon inférieur comme indiqué
Le dispositif selon l'invention est particulierement destiné au moulage des pièces céramiques telles que les tasses ou les terrines. The operating cycle of the device according to the invention is as follows:
a) filling the cavity; the configuration is that of the part
right of figure (3)
b) closing the mold: the upper punch (6) comes to bear on the
cover (2) compressing the material against the lower punch (8)
c) isostatic compaction by admission of the fluid under pressure by
food (5)
d) decompression by evacuation of the fluid towards (5)
e) lifting of the upper punch (6)
f) demoulding:: the punch (8) comes into the low position in abutment on its
flange (l4) the plate (l0) resting on the stop (l3)
g) evacuation of the compacted part by manual means or
mechanical
h) raising the punch (8) to the high position for a new cycle
According to other variants not illustrated, the device can be adapted to molding in a single operation of the most diverse containers with or without handles, provided that the shape allows
a) extracting the part from the bottom of the cell
b) extracting the lower punch as indicated
The device according to the invention is particularly intended for molding ceramic pieces such as cups or terrines.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9413518A FR2726498B3 (en) | 1994-11-08 | 1994-11-08 | DEVICE FOR MOLDING IN A SINGLE OPERATION CERAMIC CONTAINERS WITH OR WITHOUT HANDLES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9413518A FR2726498B3 (en) | 1994-11-08 | 1994-11-08 | DEVICE FOR MOLDING IN A SINGLE OPERATION CERAMIC CONTAINERS WITH OR WITHOUT HANDLES |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2726498A3 true FR2726498A3 (en) | 1996-05-10 |
FR2726498B3 FR2726498B3 (en) | 1996-09-06 |
Family
ID=9468708
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9413518A Expired - Lifetime FR2726498B3 (en) | 1994-11-08 | 1994-11-08 | DEVICE FOR MOLDING IN A SINGLE OPERATION CERAMIC CONTAINERS WITH OR WITHOUT HANDLES |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2726498B3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004058466A2 (en) * | 2002-12-23 | 2004-07-15 | Rampf Formen Gmbh | Device for producing molded bricks |
-
1994
- 1994-11-08 FR FR9413518A patent/FR2726498B3/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004058466A2 (en) * | 2002-12-23 | 2004-07-15 | Rampf Formen Gmbh | Device for producing molded bricks |
WO2004058466A3 (en) * | 2002-12-23 | 2004-09-16 | Rampf Formen Gmbh | Device for producing molded bricks |
Also Published As
Publication number | Publication date |
---|---|
FR2726498B3 (en) | 1996-09-06 |
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