FR2468566A1 - Terracotta tiles etc. provided with antique finish - where tile is brushed with abrasive sand directly after moulding to form pits, and is then enamelled and baked - Google Patents
Terracotta tiles etc. provided with antique finish - where tile is brushed with abrasive sand directly after moulding to form pits, and is then enamelled and baked Download PDFInfo
- Publication number
- FR2468566A1 FR2468566A1 FR7926949A FR7926949A FR2468566A1 FR 2468566 A1 FR2468566 A1 FR 2468566A1 FR 7926949 A FR7926949 A FR 7926949A FR 7926949 A FR7926949 A FR 7926949A FR 2468566 A1 FR2468566 A1 FR 2468566A1
- Authority
- FR
- France
- Prior art keywords
- products
- terracotta
- brush
- tiles
- moulding
- 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.)
- Withdrawn
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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
- B28B11/044—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with glaze or engobe or enamel or varnish
-
- 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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
- B28B11/06—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with powdered or granular material, e.g. sanding of shaped articles
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/4578—Coating or impregnating of green ceramics or unset concrete
Abstract
Description
La présente invention concerne un procédé et un dispositif permettant de donner un aspect ancien à tout produit de terre cuite, en sortie de mouleuse, afin qu'après les phases de sechage et de cuisson, il présente un aspect de produit vieilli ressemblant a de l'ancien.The present invention relates to a method and a device making it possible to give an old appearance to any terracotta product, on leaving the molding machine, so that after the drying and baking phases, it has an aged product appearance resembling l 'former.
Le procédé et le dispositif selon 7"invention sont par exemple applicables, de maniere avantageuse mais non limitative, au traitement superficiel des tuiles pour toiture et des briques pour murs en parements, afin de leur procurer l'aspect décoratif de matériaux anciens.The method and the device according to 7 "invention are for example applicable, in an advantageous but non-limiting manner, to the surface treatment of roof tiles and bricks for facing walls, in order to give them the decorative appearance of old materials.
Le procédé suivant l'invention est remarquable par la succession d'operations suivantes appliquées a la surface des produits de terre cuite, a leur sortie de la machine de moulage et avant les phases terminales de séchage et de cuisson - mouillage superficiel du produit, au moyen d'eau avec ou sans additif, afin de diluer legerement la surface du produit qui doit etre traitée ; - projection de sable ou autres agregats fins ; - frottage de la surface mouillee et sablée pour permettre de fixer et de faire légèrement pénétrer lesdits agregats et lesdits oxydes dans ladite surface ; - projection d'oxydes en poudre ; - émaillage de la surface par projection d'émaux liquides ou revêtement rustique (engobe).The process according to the invention is remarkable by the succession of following operations applied to the surface of the terracotta products, at their exit from the molding machine and before the final stages of drying and cooking - surface wetting of the product, means of water with or without additive, in order to slightly dilute the surface of the product to be treated; - projection of sand or other fine aggregate; - rubbing of the wet and sanded surface to allow fixing and slightly penetrating said aggregates and said oxides in said surface; - projection of powdered oxides; - enameling of the surface by projection of liquid enamels or rustic coating (slip).
Le dispositif selon l'invention est destiné a exécuter l'opération de frottage de la surface mouillée et sablee des produits.The device according to the invention is intended to execute the rubbing operation of the wet and sandy surface of the products.
Ce dispositif est remarquable par le fait qu'il comprend une brosse articulée a l'une des extrémités de deux bielles également articulées, par leur extrémite opposées a deux manivelles disposées avec un décalage angulaire et solidaires en rotation, chacune, de l'une des sorties de l'arbre à deux sorties d'un moteur tel qu'un moto-réducteur électrique.This device is remarkable in that it comprises a brush articulated at one end of two connecting rods also articulated, by their ends opposite to two cranks arranged with an angular offset and integral in rotation, each of one of the outputs of the shaft to two outputs of a motor such as an electric gear motor.
Un avantage du procéde et du dispositif selon l'invention, est qu'ils permettent de donner un aspect de produit ancien aux articles fabriqués, à l'aide d'une succession d'opérations et de moyens s'intégrant facilement dans les processus et dans les installations habituels de production de ces articles, de sorte que ces derniers peuvent être commercialiCses im médiatement, au terme des phases finales de sechage et de cuisson. An advantage of the method and of the device according to the invention is that they make it possible to give an old product appearance to the articles produced, by means of a succession of operations and means which are easily integrated into the processes and in the usual production facilities for these articles, so that they can be marketed immediately, at the end of the final drying and cooking phases.
Ces avantages, buts et caractéristiques et d'autres encore, ressortiront mieux de la description qui suit et des dessins annexés dans lesquels
La figure 1 est une vue de côte, a caractère schématique, du dispositif de frottage selon l'invention.These advantages, aims and characteristics and others still will emerge more clearly from the description which follows and from the appended drawings in which
Figure 1 is a schematic side view of the friction device according to the invention.
Les figures 2 et 3 sont des vues a caractère schematique, respectivement de face et en plan, de ce dispositif.Figures 2 and 3 are schematic views, respectively from the front and in plan, of this device.
La figure 4 est une representation du mouvement de la brosse conjugué avec l'avance du produit en cours d'execution. Figure 4 is a representation of the movement of the brush combined with the advance of the product being executed.
Le procedé de vieillissement artificiel suivant l'invention se caractérise par les operations successives ci-apr & , appliquées à la surface à "vieillir" des produits de terre cuite, à leur sortie de la machine de moulage.The artificial aging process according to the invention is characterized by the following successive operations, applied to the surface to be "aged" of terracotta products, at their exit from the molding machine.
La surface à traiter des produits sortant de la machine de moulage fait d'abord l'objet d'un mouillage superficiel par projection d'eau au moyen de tout dispositif approprie, avec ou sans additif tel qu'hexa-métaphospa- te de soude servant de floculant, ce mouillage assurant un leger delayage de ladite surface.The surface to be treated of the products leaving the molding machine is first of all subject to a surface wetting by spraying water by means of any suitable device, with or without additive such as hexa-metaphosphate of soda serving as a flocculant, this wetting ensuring a slight delaying of said surface.
On projette ensuite sur la surface légèrement delayée, à l'aide de tout matériel adéquat, un matériau granuleux de faible granulometrie, tel que sable ou autres agregats fins.Then, on the slightly delayed surface, using any suitable material, a granular material of small particle size, such as sand or other fine aggregates, is projected.
Après celà, la surface légèrement delayee fait l'objet dtun frottage permettant de fixer et de faire légèrement pénétrer les grains de sable qui, de plus, rayent irregulierement la surface traitée. Cette opération peut être effectuée manuellement ou mécaniquement. After this, the slightly delayed surface is rubbed to fix and slightly penetrate the grains of sand which, moreover, irregularly scratch the treated surface. This can be done manually or mechanically.
De manière avantageuse et caractéristique, elle-est exécutée à l'aide du dispositif de frottage illustre aux figures 1 à 3 des dessins et qui -est decrit en détail dans la suite du présent exposé.Advantageously and characteristically, it is carried out using the rubbing device illustrated in FIGS. 1 to 3 of the drawings and which is described in detail in the remainder of this description.
La surface ainsi frottée est ensuite légèrement saupoudrée d'oxydes colorants en poudre, tel que bioxyde de manganese. The surface thus rubbed is then lightly dusted with powdered coloring oxides, such as manganese dioxide.
Apres ce saupoudrage, la surface traitée du produit est émaillée- par projection d'émaux liquides ou revêtement rustique (engobe), à l'aide de tout appareil convenable. Pour cette opération, on peut utiliser différentes solutions d'émaux de façon à obtenir des couleurs variées après cuisson.After this dusting, the treated surface of the product is enamelled - by spraying with liquid enamels or rustic coating (slip), using any suitable device. For this operation, different enamel solutions can be used so as to obtain various colors after firing.
Ce revêtement rustique (engobe) ou émaillage est, par exemple, executé au moyen de solutions liquides comprenant un fondant tel qutemail de sol, mélangé a des oxydes colorants (bioxyde de manganèse, oxyde de fer, oxyde de cuivres etc..-.) et à des charges telles que Kaolin. This rustic coating (glaze) or enameling is, for example, executed by means of liquid solutions comprising a flux such as soil mesh, mixed with coloring oxides (manganese dioxide, iron oxide, copper oxide, etc.). and charges such as Kaolin.
Enfin, le produit tel que tuile ou brique ayant subi le traitement de surface qui vient d'être décrit est ensuite séché et cuit a l'aide des méthodes et moyens habituels.Finally, the product such as tile or brick having undergone the surface treatment which has just been described is then dried and cooked using the usual methods and means.
L'article de terre cuite traité conformement à l'invention offre l'apparence d'un tres vieux produit.The terracotta article treated in accordance with the invention offers the appearance of a very old product.
Un aspect de produit ancien pourrait être obtenu simplement par les operations successives de projection d'oxyde poudreux et d'émaillage.An appearance of an old product could be obtained simply by the successive operations of powdered oxide projection and enameling.
Cependant, un résultat incomparablement meilleur est obtenu par lJapplica- tion de la totalité des opérations susmentionnees.However, an incomparably better result is obtained by applying all of the abovementioned operations.
En effet, le sablage donne, après cuisson une surface rugueuse, tandis que la projection d'oxydes permet de réaliser des taches qui, combinées avec le sable cuit, donnent un resul-tat offrant une grande ressemblance avec la mousse telle qu'elle apparait souvent sur les produits anciens.Indeed, the sanding gives a rough surface after cooking, while the projection of oxides makes it possible to achieve stains which, combined with the cooked sand, give a result offering a great resemblance to the foam as it appears. often on old products.
On se reporte aux dessins pour décrire un exemple avantageux de réalisa- tion du dispositif permettant l'exécution mécanique de l'opération de frottage.Reference is made to the drawings to describe an advantageous embodiment of the device allowing the mechanical execution of the rubbing operation.
Ce dispositif comprend une brosse 1 dont la surface active présente une conformation appropriée à celle de la surface a traiter du produit.This device comprises a brush 1, the active surface of which has a conformation suitable for that of the surface to be treated of the product.
Ainsi, comme le montre la figure 2 qui représente une fabrication de tuiles rondes, la surface active de la brosse 1 a, dans ce cas, une conformation concave destinée à epouser la surface bombée du boudin de terre cuite T.Thus, as shown in Figure 2 which shows a manufacture of round tiles, the active surface of the brush 1 has, in this case, a concave conformation intended to match the curved surface of the terracotta rod T.
La brosse 1 est articulé, au moyen d'une rotule 2, à l'une des- extrémités de deux bielles 3a - 3b, l'un des éléments de ladite rotule étant solidaire du sommet de la monture de ladite brosse.The brush 1 is articulated, by means of a ball joint 2, at one of the ends of two connecting rods 3a - 3b, one of the elements of said ball joint being integral with the top of the frame of said brush.
A partir de la rotule 2,les bielles 3a - 3b ont une conformation divergente sur une portion de leur longueur, tandis quelles portions restantes desdites bielles sont disposees dans des plans verticaux parallèles.From the ball joint 2, the connecting rods 3a - 3b have a divergent conformation over a portion of their length, while the remaining portions of said connecting rods are arranged in parallel vertical planes.
Les bielles 3a -3b sont egalement articulees, par leur seconde extrémi- te, au moyen de rotules 4a - 4b, à l'une des extrémités de deux manivelles 5a - 5b, respectivement, de longueur identique.The connecting rods 3a -3b are also articulated, by their second end, by means of ball joints 4a - 4b, at one end of two cranks 5a - 5b, respectively, of identical length.
L'ensemble : bielles-brosse a un poids calculé pour ne pas écraser la tuile ou autre produit en cours d'execution. The set: connecting rods-brush has a weight calculated so as not to crush the tile or other product being executed.
Les manivelles Sa - Sb sont rigidement fixées, chacune, à l'une des sorties 6a - 6b, respectivement, de l'arbre à deux sorties d'un moteur 7 tel qu'un moto-reducteur électrique, par exemple installe sur le bâti de la machine de moulage. The cranks Sa - Sb are rigidly fixed, each to one of the outputs 6a - 6b, respectively, of the shaft with two outputs of a motor 7 such as an electric gear motor, for example installed on the frame of the molding machine.
Les deux manivelles 5a - 5b solidaires en rotation de l'arbre 6a - 6b sontdisposées avec un décalage angulaire A , comme le montre la figure 1.The two cranks 5a - 5b integral in rotation with the shaft 6a - 6b are arranged with an angular offset A, as shown in FIG. 1.
De préférence, l-'une des manivelles 5a --5b est fixée de manière réglable sur a sortie correspondante de l'arbre tournant, à l'aide de tout moyen approprié, de façon à autoriser un réglage de l'amplitude du décalage angulaire desdites manivelles.Preferably, one of the cranks 5a - 5b is fixed in an adjustable manner to the corresponding outlet of the rotating shaft, using any suitable means, so as to allow adjustment of the amplitude of the angular offset. said cranks.
L'arbre à double sortie & - 6b tourne toujours dans le même sens et à une vitesse réglable, afin d'autoriser un reglage de la vitesse de brossage par rapport à la vitesse de sortie de la tuile.The dual output shaft & - 6b always rotates in the same direction and at an adjustable speed, in order to allow adjustment of the brushing speed in relation to the output speed of the tile.
On conçoit que, suivant l'agencement qui vientd'être décrit, la brosse se deplace sur la tuile (ou autre produit de terre cuite) animée d'une trajectoire rectiligne à la sortie de la filière F de la machine de moulage M . - dune part en un mouvement de va et vient dû a la rotation des manivelles dans le sens de ladite tuile et ; - d'autre part, en un mouvement lateral donne par le decalage angulaire desdites manivelles.It is understood that, according to the arrangement which has just been described, the brush moves over the tile (or other terracotta product) animated by a rectilinear trajectory at the outlet of the die F of the molding machine M. - on the one hand in a back and forth movement due to the rotation of the cranks in the direction of said tile and; - on the other hand, in a lateral movement given by the angular offset of said cranks.
Ces deux mouvements conjugues impriment à la brosse un mouvement de forme elliptique qui se transforme en mouvement cycloidal par l'effet d'avancement du produit, comme on l'a représente à la figure 4.These two combined movements give the brush an elliptical movement which is transformed into a cycloidal movement by the advancing effect of the product, as shown in FIG. 4.
L'intérêt et les avantages du procéde et du dispositif selon l'invention ressortent bien de l'exposé qui précède et des dessins annexés.The interest and the advantages of the method and of the device according to the invention emerge clearly from the foregoing description and from the appended drawings.
On souligne encore que le mouillage à l'eau des produits, à leur sortie de la machine de moulage, assure un délitage superficiel de leur surface, lequel permet l'union de fines particules d'argiles au sable, aux oxydes et aux emaux donnant ainsi, suivantle débit de l'eau de mouillage, des mélanges de couleurs et des dénuançages irréguliers.It is also emphasized that the wetting with water of the products, at their exit from the molding machine, ensures a surface disintegration of their surface, which allows the union of fine particles of clays with sand, oxides and enamels giving thus, depending on the flow of fountain water, mixtures of colors and irregular stripping.
D'autre part, le grésage de la surface s' opère, en cours de cuisson, sur ce mélange.On the other hand, the sanding of the surface takes place, during cooking, on this mixture.
Ces effets contribuent à l'obtention de produits ayant un aspect ancien tres remarquable. These effects contribute to obtaining products with a very remarkable old appearance.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7926949A FR2468566A1 (en) | 1979-10-26 | 1979-10-26 | Terracotta tiles etc. provided with antique finish - where tile is brushed with abrasive sand directly after moulding to form pits, and is then enamelled and baked |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7926949A FR2468566A1 (en) | 1979-10-26 | 1979-10-26 | Terracotta tiles etc. provided with antique finish - where tile is brushed with abrasive sand directly after moulding to form pits, and is then enamelled and baked |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2468566A1 true FR2468566A1 (en) | 1981-05-08 |
Family
ID=9231203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7926949A Withdrawn FR2468566A1 (en) | 1979-10-26 | 1979-10-26 | Terracotta tiles etc. provided with antique finish - where tile is brushed with abrasive sand directly after moulding to form pits, and is then enamelled and baked |
Country Status (1)
Country | Link |
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FR (1) | FR2468566A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0401462A2 (en) * | 1989-06-05 | 1990-12-12 | Metten Produktions- Und Handels Gmbh | Process for making and/or handling concrete blocks |
EP4086235A1 (en) * | 2021-05-04 | 2022-11-09 | Flooring Industries Limited, SARL | A method and a line for manufacturing ceramic tiles |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB347845A (en) * | 1930-04-03 | 1931-05-07 | Thomas Jones | Improvements in or relating to the manufacture of bricks or the like |
US2035040A (en) * | 1933-06-09 | 1936-03-24 | Autumtints Brick Machinery Cor | Apparatus for treatment of soft brick-like goods before baking |
-
1979
- 1979-10-26 FR FR7926949A patent/FR2468566A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB347845A (en) * | 1930-04-03 | 1931-05-07 | Thomas Jones | Improvements in or relating to the manufacture of bricks or the like |
US2035040A (en) * | 1933-06-09 | 1936-03-24 | Autumtints Brick Machinery Cor | Apparatus for treatment of soft brick-like goods before baking |
Non-Patent Citations (2)
Title |
---|
EXBK/63 * |
EXBK/65 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0401462A2 (en) * | 1989-06-05 | 1990-12-12 | Metten Produktions- Und Handels Gmbh | Process for making and/or handling concrete blocks |
EP0401462A3 (en) * | 1989-06-05 | 1991-01-30 | Metten Produktions- Und Handels Gmbh | Process for making and/or handling concrete blocks |
EP4086235A1 (en) * | 2021-05-04 | 2022-11-09 | Flooring Industries Limited, SARL | A method and a line for manufacturing ceramic tiles |
WO2022234352A1 (en) * | 2021-05-04 | 2022-11-10 | Flooring Industries Limited, Sarl | A method and a line for manufacturing ceramic tiles, and ceramic tiles |
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