EP0922548A1 - Process for moulding thin panels from castable material, in particular plaster, device for carrying out the process and obtained product - Google Patents

Process for moulding thin panels from castable material, in particular plaster, device for carrying out the process and obtained product Download PDF

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Publication number
EP0922548A1
EP0922548A1 EP97402921A EP97402921A EP0922548A1 EP 0922548 A1 EP0922548 A1 EP 0922548A1 EP 97402921 A EP97402921 A EP 97402921A EP 97402921 A EP97402921 A EP 97402921A EP 0922548 A1 EP0922548 A1 EP 0922548A1
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EP
European Patent Office
Prior art keywords
plates
molding
mold
frame
movable
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
EP97402921A
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German (de)
French (fr)
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EP0922548B1 (en
Inventor
René Bergounhon
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.)
Sarl Alpha Platre
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Sarl Alpha Platre
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Filing date
Publication date
Application filed by Sarl Alpha Platre filed Critical Sarl Alpha Platre
Priority to AT97402921T priority Critical patent/ATE215433T1/en
Priority to PT97402921T priority patent/PT922548E/en
Priority to DK97402921T priority patent/DK0922548T3/en
Priority to DE69711644T priority patent/DE69711644T2/en
Priority to ES97402921T priority patent/ES2175307T3/en
Priority to EP97402921A priority patent/EP0922548B1/en
Publication of EP0922548A1 publication Critical patent/EP0922548A1/en
Application granted granted Critical
Publication of EP0922548B1 publication Critical patent/EP0922548B1/en
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    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/10—Moulds with means incorporated therein, or carried thereby, for ejecting or detaching the moulded article
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
    • B28B7/241—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces
    • B28B7/243—Detachable assemblies of mould parts providing only in mutual co-operation a number of complete moulding spaces for making plates, panels or similar sheet- or disc-shaped objects

Definitions

  • the invention relates to a method for molding plates. fines of flowable material, in particular plaster, in accordance with preamble of claim 1, a device for setting of the process and the product obtained.
  • EP 0 161 374 discloses a method and device for molding thin plasterboards, thick less than 40 mm, which opens the mold, in a small proportion, so as to release the pressure of setting of the material, which expands upon solidification, on the mold, and thus facilitate the extrusion of thin plates made out of the mold.
  • this technique cannot prevent material from accumulating at the opening of the mold obstructing the closing in one dimension accurate reproducible mold.
  • Said mold cavity formation is carried out from advantageously by means of rigid intermediate plates, mobile in translation and guided with watertight seal lower part of the molding chamber, the plates dividers being evenly distributed parallel to each other, in the molding chamber, short distance from each other.
  • Said external rigid frame advantageously constitutes with the intermediate plates in the lower position the chamber molding. It is advantageously mounted in rolling guide or sliding relative to the interlayers end of the molding chamber (on bearings with rollers on the end intermediate plates), being raised in the molding position and lowered for demolding. In this way, the translational effort of the frame for loosening the molding chamber, on demolding, is reduced.
  • the rigid frame Upon demolding, the rigid frame is translated downwards, loosening the molding chamber, and then the plates dividers are lowered, sliding effortlessly over the molded material plates held in the chamber molding.
  • the molding chamber is advantageously in the form of a tank rectangular, open upwards, where the material to be molded is poured (poured), being provided with lights at its bottom for the sealed passage of the intermediate plates forming mold imprints.
  • This chamber can be provided with mold bottoms, independent parts, arranged between the plates dividers, these bottoms being movable for the evacuation of the molded material plates, on demolding.
  • the mold bases are fixed, of so that the molded plates do not have to be moved demoulding, the intermediate plates being released in translation on the bottom out of the molded plates, these then being maintained during this release.
  • the molded material plates are advantageously held by a movable gripper device for handling taken on the edge of the plates.
  • the external rigid frame being lowered down and even the molding intermediate plates, at the level of the mold bases, handling of molded plates may be executed at a short distance in height from the bottom of mold and therefore with benefit in handling height of these molded plates.
  • the invention also relates to the device for placing using the previously defined molding process and even the product obtained.
  • the product obtained results from the process. It consists in the form of plates of variable thickness and approximately at minus 5 mm thick, with or without interlocking edges plate assembly.
  • Figures 1 and 2 show two embodiments of devices or machines for the implementation of a industrial manufacturing process for plasterboard thin, armed with diverse and large fibers and with or without peripheral interlocking moldings.
  • Figure 2 is similar to Figure 1, allowing a gain in height of the machine by integrating the cylinders in the upper part, at the level of the molding chamber.
  • the device according to the invention consists of a plurality of fixed mold bases 2 connected to a support fixed constituting the frame 6 of the machine. Mold bottoms 2 are mounted on side bars 9 integral with the frame 6.
  • Vertically movable intermediate plates 3 are assembled on a mobile support 4 according to a movement of vertical translation relative to the frame 6. These plates inserts ensure the molding of the faces of the plates plaster.
  • a movable external frame 1, also animated by a vertical translational movement relative to the frame 6, ensures the molding of the edge, by moldings 8 of the plates plastering and guiding by internal slides 7 of inserts 3.
  • the machine according to Figure 1 comprises, cylinders 10 integral with the chassis 6 and coupled to the mobile chassis 4 and cylinders 11 fixed to the frame 6 and coupled to the frame mobile 1. All of these cylinders have one stroke corresponding to the maximum height of the plasterboard at achieve.
  • On the mobile chassis or the mobile beam 4 are fixed by their lower edge, the mobile plates 3 or molding plates sliding between the bottoms mold 2.
  • the two movable end plates 3 have on the upper part of their outer faces a seal sealing 12 with respect to the corresponding internal face mobile frame 1 as well as sliding guide systems of frame 1, for example with needle roller tracks 13.
  • the movable external frame 1 comprises (FIG. 4) on its front and rear internal faces the molding elements 8 and 7 aforementioned for shaping the edge of the plates to mold and for guiding the moving plates 3 respectively.
  • this same movable frame 1 comprises two smooth side faces 14 for making said sealing and said sliding guide on the paths of needle bearing 13, relative to the two plates end mobile 3.
  • the supports 9 of the mold bases each consist of ( Figures 1 and 5) by two lateral columns allowing the moving frame 4.
  • the mold bases 2 are fitted (FIG. 5) on their upper face of a molding 15 for shaping the edge lower of the molding plates and on the periphery of a joint seal 16 also providing guiding in translation movable plates 3 along their length.
  • This joint seal is provided with a slit supplied with demolding at constant pressure which when moving the movable frame and plates 3 ensures their lubrication.
  • the translation cylinders of the mobile plates 3 are controlled so that the cylinders are in the low position 10, therefore of the movable chassis 4, the upper edge of the plates mobile 3 is at the same level as the top of the moldings 15 mold bottoms 2.
  • the high extension position of the cylinders 10, therefore of the movable chassis 4, corresponds to the height maximum molding of the movable plates 3.
  • the upper face of the outer frame 1 is at the same level as the top of the moldings 15 of the funds molds 2 and in the high position of these jacks, it is at same level as the plates 3.
  • FIGS 6 to 9 illustrate this operation showing the different relative positions of the three parties main features of the device.
  • Figure 6 shows in schematic section the position plaster casting.
  • the intermediate plates 3 are in low position relative to the frame 6 and the outer frame 1 is in the intermediate position (halfway).
  • Figure 7 shows the molding position.
  • the intermediate plates 3 and the outer frame 1 are in high position relative to the frame 6.
  • Figure 8 shows the release position.
  • the outer frame 1 is in the low position on the frame 6 and the intermediate plates 3 are in the high position relative to to the frame 6.
  • FIG. 9 represents the demolding position and removal of the plasterboard made.
  • the framework outside 1 and the intermediate plates 3 are in position low compared to the frame 6.
  • the intermediate plates 3, the mold bases 2 and the frame exterior 1 constitute a receptacle for plaster to molding allowing the plaster to bubble out before molding.
  • a vibrating device (not shown) arranged in said tank or the molding chamber allows the evacuation of bubbles of air.
  • the movable plates 3 are in the low position at level of the fixed mold bases 2 and the movable frame outside 1 is in an intermediate position (substantially halfway). This position is suitable for receive the volume quantity of the mixture without overflow plaster liquid to be poured.
  • the fixed mold bottoms 2 being provided with sealing means 16 at their molding 15 and the end plates 3 also being provided with sealing means 12 on the top of their faces external with internal adjacent faces of the frame exterior 1, the assembly thus produces a sealed container low height, allowing the mixture to spill plaster to be poured without turbulence or introduction of air.
  • This tank allows the natural distribution of the liquid mixture of plaster above the mold bases 2 and the release of air bubbles trapped by the fibers introduced during mixing, this using the vibrator above immersed in the liquid mixture.
  • the plaster spill ( Figure 6) is performed at a height much lower than the actual height plates, and that in none of these operations the funds of fixed mold 2 do not move, which reduces the height of mixers, machines and buildings receiving the installation.
  • the height of the machine according to the figure 7 can be reduced to a height equal to twice the height of the plasterboard increased by thicknesses, respectively, fixed mold bottoms 2, chassis 4 support for movable plates 3 and chassis 6 support for all.
  • the mobile outer frame 1 with its moldings 7 and 8 for molding the two vertical edges of the plasterboard and movable plate guide, stripping during its descent the lateral edge of the mobile plates 3 and the vertical edges of the plasterboard resting on the fixed mold bases 2. All the constraints of dilations due to the setting of the plaster are released, the plasterboards having to undergo only one friction on their song (minimal).
  • the moldings 15 are provided a peripheral groove supplied with demolding oil which ensures regular oiling of the intermediate plates 3 and the outer frame 1 when they move relative to mold bases 2. Indeed, given the low space between two intermediate plates 3 (from 5 mm), it is not possible to apply effectively by spraying the oil on the inside of the mold, as does it conventionally.
  • Figure 10 shows a device for performing the upper moldings of plasterboard.
  • these moldings are produced by a plurality of rollers 19 having the counter-shape of the molding, and turning around a common axis 20 perpendicular to plasterboard and simultaneously with the rotation of the roller, so that the circumferential speed of the roller is identical to the axis translation speed; this can be achieved for example by a 20-axis system carrying said rollers 19 and comprising at its two ends a pinion 21 of diameter equal to that of the roller and rolling on a fixed rack 22 placed on the same level than the top of the drywall.

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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)
  • Moulds, Cores, Or Mandrels (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Silicon Compounds (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Cosmetics (AREA)
  • Laminated Bodies (AREA)

Abstract

The procedure, designed to mold thin sheets from a material which can be poured consists of filling the molding chamber with an appropriate volume of the material, vibrating the material to remove any air and level it, inserting rigid spacers, enclosing the molding chamber e.g. in a rigid frame (1) to resist deformation while the material is setting, and freeing after setting and prior to final treatment. The spacers are in the form of rigid plates (3) set at regular intervals in the mold chamber, e.g. less than 40 mm from one another, while the rigid frame (1) is able to roll or slide relative to them. The lower ends of the mold cavities are closed by seals (16) on supports (9).

Description

L'invention concerne un procédé de moulage de plaques fines de matériau coulable, notamment de plâtre, conforme au préambule de la revendication 1, un dispositif pour la mise en oeuvre du procédé et le produit obtenu.The invention relates to a method for molding plates. fines of flowable material, in particular plaster, in accordance with preamble of claim 1, a device for setting of the process and the product obtained.

On connaít les carreaux de plâtre à faces lisses utilisés notamment pour la réalisation de cloisons dans le bâtiment. Ces carreaux, relativement épais sont obtenus par moulage dans des empreintes de moule verticales étant extraits par extrusion à la partie supérieure du moule à l'aide d'un poussoir agissant sur la section de la partie inférieure du carreau. Néanmoins, cette technique ne permet pas en raison de la pression d'extrusion sur la section inférieure du carreau d'obtenir des carreaux dont l'épaisseur est inférieure à 40 mm.We know the smooth-faced plaster tiles used in particular for the production of partitions in the building. These relatively thick tiles are obtained by molding in vertical mold cavities being extruded at the top of the mold using a pusher acting on the section of the part bottom of the pane. However, this technique does not allow not due to the extrusion pressure on the section bottom of the tile to get tiles which the thickness is less than 40 mm.

On connaít par EP 0 161 374 un procédé et dispositif pour mouler des plaques fines de plâtres, d'épaisseur inférieure à 40 mm, qui réalise une ouverture du moule, dans une faible proportion, de manière à libérer la pression de prise du matériau, qui se dilate à la solidification, sur le moule, et faciliter ainsi l'extrusion des plaques fines réalisées hors du moule. Néanmoins, cette technique ne peut empêcher que du matériau ne s'accumule au niveau de l'ouverture du moule gênant la fermeture dans une dimension précise reproductible du moule.EP 0 161 374 discloses a method and device for molding thin plasterboards, thick less than 40 mm, which opens the mold, in a small proportion, so as to release the pressure of setting of the material, which expands upon solidification, on the mold, and thus facilitate the extrusion of thin plates made out of the mold. However, this technique cannot prevent material from accumulating at the opening of the mold obstructing the closing in one dimension accurate reproducible mold.

On connaít encore par EP 0 610 529 un procédé et dispositif de moulage de plaques fines de plâtre dont l'extrusion des plaques fines est effectuée au moins sur la section de deux plaques fines, dans une chambre de moulage partielle, de manière à limiter la pression d'extrusion sur la section de chacune des plaques moulées. Cette technique réduit effectivement la pression d'extrusion sur chacune des plaques, par exemple, dans la proportion de 50 % relativement à une plaque pour deux plaques moulées dans une chambre partielle de moulage, mais en raison de cette disposition de chambres de moulage partielles, elle rend difficile la répartition uniforme du matériau coulé dans les différentes chambres partielles de moulage. Par ailleurs, le matériau contenant généralement des fibres de verre, il est également difficile d'évacuer l'air introduit lors du mélange et retenu dans celui-ci par les fibres.We also know from EP 0 610 529 a process and device for molding thin plasterboard including thin plates are extruded at least on the section of two thin plates, in a molding chamber partial, so as to limit the extrusion pressure on the section of each of the molded plates. This technique effectively reduces the extrusion pressure on each plates, for example, in the proportion of 50% relative to one plate for two plates molded in one partial molding chamber but because of this provision of partial molding chambers, it makes difficult the uniform distribution of the material cast in the different partial molding chambers. In addition, the material usually containing glass fibers it is also difficult to exhaust the air introduced during mixture and retained therein by the fibers.

L'invention a pour but de remédier à ces inconvénients et propose un procédé de moulage de plaques fines de matériau coulable, notamment de plâtre, en prise de solidification avec dilatation au cours du moulage, dans des empreintes de moule d'une chambre de moulage, caractérisé en ce qu'il consiste à :

  • recevoir dans la chambre de moulage ledit matériau coulé, dans un volume déterminé correspondant au moulage des dites empreintes de moule,
  • vibrer le matériau coulé dans la chambre de moulage de façon à en évacuer l'air, et à en répartir parfaitement le niveau,
  • former lesdites empreintes de moule au sein de la chambre de moulage,
  • ceinturer ladite chambre de moulage pour lui permettre de résister sans déformation à la prise de solidification des plaques moulées, dans la durée de moulage, par exemple au moyen d'un cadre rigide externe translaté autour de la chambre du moulage,
  • désserrer ledit ceinturage de chambre de moulage après moulage de façon à libérer lesdites empreintes de moule de la pression de moulage du matériau, et
  • évacuer les empreintes de moule et le matériau moulé pour traitement ultérieur.
The object of the invention is to remedy these drawbacks and proposes a method for molding thin plates of flowable material, in particular plaster, which solidifies with expansion during molding, in mold cavities of a molding chamber. , characterized in that it consists of:
  • receiving said cast material in the molding chamber, in a determined volume corresponding to the molding of said mold cavities,
  • vibrate the material poured into the molding chamber so as to evacuate the air, and to distribute the level perfectly,
  • forming said mold imprints within the molding chamber,
  • belt said molding chamber to allow it to resist without deformation the setting of solidification of the molded plates, during the molding period, for example by means of an external rigid frame translated around the molding chamber,
  • loosening said mold chamber belt after molding so as to release said mold imprints from the molding pressure of the material, and
  • remove mold impressions and molded material for further processing.

Ladite formation des empreintes de moule est réalisée de façon avantageuse au moyen de plaques intercalaires rigides, mobiles en translation et guidées à joint étanche à la partie inférieure de la chambre de moulage, les plaques intercalaires étant réparties de façon régulière parallèlement l'une à l'autre, dans la chambre de moulage, à faible distance l'une de l'autre.Said mold cavity formation is carried out from advantageously by means of rigid intermediate plates, mobile in translation and guided with watertight seal lower part of the molding chamber, the plates dividers being evenly distributed parallel to each other, in the molding chamber, short distance from each other.

Ledit cadre rigide externe constitue avantageusement avec les plaques intercalaires en position basse la chambre de moulage. Il est avantageusement monté en guidage roulant ou glissant relativement aux plaques intercalaires d'extrémité de la chambre de moulage (sur des roulements à rouleaux sur les plaques intercalaires d'extrémité), étant élevé en position de moulage et abaissé pour le démoulage. De cette façon, l'effort de translation du cadre pour désserrer la chambre de moulage, au démoulage, est réduit.Said external rigid frame advantageously constitutes with the intermediate plates in the lower position the chamber molding. It is advantageously mounted in rolling guide or sliding relative to the interlayers end of the molding chamber (on bearings with rollers on the end intermediate plates), being raised in the molding position and lowered for demolding. In this way, the translational effort of the frame for loosening the molding chamber, on demolding, is reduced.

Au démoulage, le cadre rigide est translaté vers le bas, desserrant la chambre de moulage, et ensuite les plaques intercalaires sont descendues, glissant sans effort sur les plaques de matériau moulées maintenues dans la chambre de moulage.Upon demolding, the rigid frame is translated downwards, loosening the molding chamber, and then the plates dividers are lowered, sliding effortlessly over the molded material plates held in the chamber molding.

La chambre de moulage est avantageusement à forme de bac rectangulaire, ouvert vers le haut, où le matériau à mouler est déversé (coulé), étant pourvue de lumières en son fond pour le passage étanche des plaques intercalaires formant empreintes de moule.The molding chamber is advantageously in the form of a tank rectangular, open upwards, where the material to be molded is poured (poured), being provided with lights at its bottom for the sealed passage of the intermediate plates forming mold imprints.

Cette chambre peut être pourvue de fonds de moule, pièces indépendantes, disposés entre les plaques intercalaires, ces fonds pouvant être montés mobiles pour l'évacuation des plaques de matériau moulées, au démoulage.This chamber can be provided with mold bottoms, independent parts, arranged between the plates dividers, these bottoms being movable for the evacuation of the molded material plates, on demolding.

De façon avantageuse, les fonds de moule sont fixes, de sorte que les plaques moulées n'ont pas à être bougées au démoulage, les plaques intercalaires étant dégagées en translation sur le bas hors des plaques moulées, celles-ci étant alors maintenues au cours de ce dégagement.Advantageously, the mold bases are fixed, of so that the molded plates do not have to be moved demoulding, the intermediate plates being released in translation on the bottom out of the molded plates, these then being maintained during this release.

Les plaques de matériau moulées sont avantageusement maintenues par un dispositif à pince mobile de manutention à prise sur le chant des plaques.The molded material plates are advantageously held by a movable gripper device for handling taken on the edge of the plates.

Le cadre rigide externe étant descendu vers le bas et de même les plaques intercalaires de moulage, au niveau des fonds de moule, la manutention des plaques moulées pourra être exécutée à faible distance en hauteur des fonds de moule et donc avec bénéfice dans la hauteur de manutention de ces plaques moulées.The external rigid frame being lowered down and even the molding intermediate plates, at the level of the mold bases, handling of molded plates may be executed at a short distance in height from the bottom of mold and therefore with benefit in handling height of these molded plates.

L'invention concerne également le dispositif pour mettre en oeuvre le procédé de moulage défini précédemment et de même le produit obtenu. The invention also relates to the device for placing using the previously defined molding process and even the product obtained.

Le dispositif selon l'invention pour le moulage de plaques minces de matériau coulable notamment de plâtre, comporte essentiellement :

  • une chambre de moulage apte à recevoir le matériau coulé, dans un volume déterminé correspondant au moulage des plaques à réaliser,
  • un dispositif vibreur du matériau coulé dans la chambre de moulage,
  • un dispositif apte à former des empreintes de moule au sein de la chambre de moulage au moyen de plaques intercalaires mobiles au sein de la chambre de moulage,
  • un dispositif apte à ceinturer la chambre de moulage et empêchant toute déformation de cette dernière lors de la prise de solidification des plaques moulées, et à la désserrer au démoulage de façon à permettre l'évacuation facile et sans extrusion des plaques moulées.
The device according to the invention for molding thin plates of flowable material, in particular plaster, essentially comprises:
  • a molding chamber capable of receiving the cast material, in a determined volume corresponding to the molding of the plates to be produced,
  • a vibrating device for the material poured into the molding chamber,
  • a device capable of forming mold imprints within the molding chamber by means of mobile intermediate plates within the molding chamber,
  • a device capable of encircling the molding chamber and preventing any deformation of the latter during the setting of the solidification of the molded plates, and loosening it on demolding so as to allow easy evacuation and without extrusion of the molded plates.

Le produit obtenu résulte du procédé. Il est constitué sous forme de plaques d'épaisseur variable et d'environ au moins 5 mm d'épaisseur, avec ou non des bords à emboítement d'assemblage des plaques.The product obtained results from the process. It consists in the form of plates of variable thickness and approximately at minus 5 mm thick, with or without interlocking edges plate assembly.

L'invention est illustrée ci-après à l'aide d'exemples de réalisation et en référence aux dessins annexés, sur lesquels :

  • les figures 1 et 2 sont des vues en élévation de deux dispositifs ou machines pour la mise en oeuvre du procédé de moulage de plaques de plâtre selon l'invention,
  • la figure 3 est une vue de côté de la machine selon la figure 1,
  • la figure 4 est une vue partielle de dessus de la chambre de moulage des machines selon les figures 1 et 2,
  • la figure 5 est une vue schématique en coupe partielle montrant le fond de la chambre de moulage,
  • les figures 6, 7, 8 et 9 montrent schématiquement les diverses phases du procédé selon l'invention et
  • la figure 10 est une vue du dispositif de formation du bord à emboítement supérieur des plaques de plâtre moulées.
The invention is illustrated below with the aid of exemplary embodiments and with reference to the appended drawings, in which:
  • FIGS. 1 and 2 are elevation views of two devices or machines for implementing the plasterboard molding process according to the invention,
  • FIG. 3 is a side view of the machine according to FIG. 1,
  • FIG. 4 is a partial top view of the molding chamber of the machines according to FIGS. 1 and 2,
  • FIG. 5 is a schematic view in partial section showing the bottom of the molding chamber,
  • FIGS. 6, 7, 8 and 9 schematically show the various phases of the process according to the invention and
  • Figure 10 is a view of the edge forming device with upper socket molded plasterboard.

Les figures 1 et 2 montrent deux formes de réalisation de dispositifs ou machines pour la mise en oeuvre d'un procédé de fabrication industrielle de plaques de plâtre minces, armées de fibres diverses et de grande dimension et comportant ou non des moulures d'emboítement périphérique.Figures 1 and 2 show two embodiments of devices or machines for the implementation of a industrial manufacturing process for plasterboard thin, armed with diverse and large fibers and with or without peripheral interlocking moldings.

La figure 2 est analogue à la figure 1, permettant un gain de hauteur de la machine en intégrant les corps de vérins en partie haute, au niveau de la chambre de moulage.Figure 2 is similar to Figure 1, allowing a gain in height of the machine by integrating the cylinders in the upper part, at the level of the molding chamber.

Le dispositif selon l'invention est constitué d'une pluralité de fonds de moules fixes 2 reliés à un support fixe constituant le bâti 6 de la machine. Les fonds de moule 2 sont montés sur des barres latérales 9 solidaires du bâti 6.The device according to the invention consists of a plurality of fixed mold bases 2 connected to a support fixed constituting the frame 6 of the machine. Mold bottoms 2 are mounted on side bars 9 integral with the frame 6.

Des plaques intercalaires 3 mobiles verticalement sont assemblées sur un support 4 mobile selon un mouvement de translation vertical par rapport au bâti 6. Ces plaques intercalaires assurent le moulage des faces des plaques de plâtre. Un cadre extérieur 1 mobile, animé également d'un mouvement de translation vertical par rapport au bâti 6, assure le moulage du chant, par des moulures 8 des plaques de plâtres et le guidage par des glissières internes 7 des plaques intercalaires 3.Vertically movable intermediate plates 3 are assembled on a mobile support 4 according to a movement of vertical translation relative to the frame 6. These plates inserts ensure the molding of the faces of the plates plaster. A movable external frame 1, also animated by a vertical translational movement relative to the frame 6, ensures the molding of the edge, by moldings 8 of the plates plastering and guiding by internal slides 7 of inserts 3.

La machine selon la figure 1 comprend, des vérins 10 solidaires du châssis 6 et accouplés au châssis mobile 4 et des vérins 11 fixés sur le châssis 6 et accouplés au cadre mobile 1. L'ensemble de ces vérins a une course correspondant à la hauteur maximale des plaques de plâtre à réaliser. Sur le châssis mobile ou la poutre mobile 4 sont fixés par leur chant inférieur les plaques mobiles 3 ou plaques intercalaires de moulage coulissant entre les fonds de moule 2. Les deux plaques mobiles d'extrémité 3 possèdent sur la partie haute de leurs faces extérieures un joint d'étanchéité 12 par rapport à la face interne correspondante du cadre mobile 1 ainsi que des systèmes de guidage glissant du cadre 1, par exemple à chemins de roulement à aiguilles 13. Le cadre extérieur mobile 1 comporte (figure 4) sur ses faces internes avant et arrière les éléments de moulure 8 et 7 précités pour la mise en forme du chant des plaques à mouler et pour le guidage des plaques mobiles 3 respectivement. En outre, ce même cadre mobile 1 comporte deux faces latérales lisses 14 permettant de réaliser ladite étanchéité et ledit guidage glissant sur les chemins de roulement à aiguilles 13, relativement aux deux plaques mobiles d'extrémité 3.The machine according to Figure 1 comprises, cylinders 10 integral with the chassis 6 and coupled to the mobile chassis 4 and cylinders 11 fixed to the frame 6 and coupled to the frame mobile 1. All of these cylinders have one stroke corresponding to the maximum height of the plasterboard at achieve. On the mobile chassis or the mobile beam 4 are fixed by their lower edge, the mobile plates 3 or molding plates sliding between the bottoms mold 2. The two movable end plates 3 have on the upper part of their outer faces a seal sealing 12 with respect to the corresponding internal face mobile frame 1 as well as sliding guide systems of frame 1, for example with needle roller tracks 13. The movable external frame 1 comprises (FIG. 4) on its front and rear internal faces the molding elements 8 and 7 aforementioned for shaping the edge of the plates to mold and for guiding the moving plates 3 respectively. In addition, this same movable frame 1 comprises two smooth side faces 14 for making said sealing and said sliding guide on the paths of needle bearing 13, relative to the two plates end mobile 3.

Les supports 9 des fonds de moule sont constitués chacun (figures 1 et 5) par deux colonnes latérales autorisant le passage du bâti mobile 4.The supports 9 of the mold bases each consist of (Figures 1 and 5) by two lateral columns allowing the moving frame 4.

Les fonds de moule 2 sont équipés (figure 5) sur leur face supérieure d'une moulure 15 de mise en forme du chant inférieur des plaques à mouler et en périphérie d'un joint d'étanchéité 16 assurant également le guidage en translation des plaques mobiles 3 sur leur longueur. Ce joint d'étanchéité est pourvu d'une fente alimentée en huile de démoulage à pression constante qui lors du déplacement du cadre mobile et des plaques 3 assure leur graissage.The mold bases 2 are fitted (FIG. 5) on their upper face of a molding 15 for shaping the edge lower of the molding plates and on the periphery of a joint seal 16 also providing guiding in translation movable plates 3 along their length. This joint seal is provided with a slit supplied with demolding at constant pressure which when moving the movable frame and plates 3 ensures their lubrication.

Les vérins de translation des plaques mobiles 3 sont commandés de telle sorte que en position basse des vérins 10, donc du châssis mobile 4, le chant supérieur des plaques mobiles 3 soit au même niveau que le dessus des moulures 15 des fonds de moule 2. La position haute d'extension des vérins 10, donc du chassis mobile 4, correspond à la hauteur maximale de moulage des plaques mobiles 3. En position basse des vérins 11, la face supérieure du cadre extérieur 1 est au même niveau que le dessus des moulures 15 des fonds de moules 2 et en position haute de ces vérins, elle est au même niveau que les plaques 3.The translation cylinders of the mobile plates 3 are controlled so that the cylinders are in the low position 10, therefore of the movable chassis 4, the upper edge of the plates mobile 3 is at the same level as the top of the moldings 15 mold bottoms 2. The high extension position of the cylinders 10, therefore of the movable chassis 4, corresponds to the height maximum molding of the movable plates 3. In the low position cylinders 11, the upper face of the outer frame 1 is at the same level as the top of the moldings 15 of the funds molds 2 and in the high position of these jacks, it is at same level as the plates 3.

Le fonctionnement de la machine est à présent précisé. Il résulte de la combinaison des différentes positions relatives des trois parties principales (fonds de moules 2, plaques intercalaires 3 et cadre extérieur 1).The operation of the machine is now specified. It results from the combination of different positions relative of the three main parts (mold bases 2, intermediate plates 3 and outer frame 1).

Les figures 6 à 9 illustrent ce fonctionnement montrant les différentes positions relatives des trois parties principales du dispositif.Figures 6 to 9 illustrate this operation showing the different relative positions of the three parties main features of the device.

La figure 6 représente en coupe schématique la position de coulage du plâtre. Les plaques intercalaires 3 sont en position basse relativement au bâti 6 et le cadre extérieur 1 est en position intermédiaire (à mi-course).Figure 6 shows in schematic section the position plaster casting. The intermediate plates 3 are in low position relative to the frame 6 and the outer frame 1 is in the intermediate position (halfway).

La figure 7 représente la position de moulage. Les plaques intercalaires 3 et le cadre extérieur 1 sont en position haute relativement au bâti 6.Figure 7 shows the molding position. The intermediate plates 3 and the outer frame 1 are in high position relative to the frame 6.

La figure 8 représente la position de démoulage. Le cadre extérieur 1 est en position basse sur le bâti 6 et les plaques intercalaires 3 sont en position haute par rapport au bâti 6.Figure 8 shows the release position. The outer frame 1 is in the low position on the frame 6 and the intermediate plates 3 are in the high position relative to to the frame 6.

La figure 9 représente la position de démoulage et d'enlèvement des plaques de plâtre réalisées. Le cadre extérieur 1 et les plaques intercalaires 3 sont en position basse par rapport au bâti 6.FIG. 9 represents the demolding position and removal of the plasterboard made. The framework outside 1 and the intermediate plates 3 are in position low compared to the frame 6.

Dans la configuration relative à la figure 6, les plaques intercalaires 3, les fonds de moule 2 et le cadre extérieur 1 constituent un bac receveur pour le plâtre à mouler permettant le débullage du plâtre avant moulage. Un dispositif vibreur (non représenté) disposé dans ledit bac ou la chambre de moulage permet l'évacuation des bulles d'air. Les plaques mobiles 3 sont en position basse au niveau des fonds de moule fixes 2 et le cadre mobile extérieur 1 est dans une position intermédiaire (sensiblement à mi-course). Cette position est adaptée pour recevoir sans débordement la quantité en volume du mélange liquide de plâtre à couler. Les fonds de moule fixes 2 étant pourvus de moyens d'étanchéité 16 au niveau de leur moulure 15 et les plaques d'extrémités 3 étant également pourvues de moyens d'étanchéité 12 sur le haut de leurs faces extérieures avec les faces adjacentes internes du cadre extérieur 1, l'ensemble réalise ainsi un récipient étanche de faible hauteur, ce qui permet un déversement du mélange de plâtre à couler sans turbulence ni introduction d'air. Ce bac permet la répartition naturelle du mélange liquide de plâtre au dessus des fonds de moule 2 ainsi que le dégagement des bulles d'air emprisonnées par les fibres introduites lors du mélange, ceci à l'aide du vibreur précité plongeant dans le mélange liquide. In the configuration relating to FIG. 6, the intermediate plates 3, the mold bases 2 and the frame exterior 1 constitute a receptacle for plaster to molding allowing the plaster to bubble out before molding. A vibrating device (not shown) arranged in said tank or the molding chamber allows the evacuation of bubbles of air. The movable plates 3 are in the low position at level of the fixed mold bases 2 and the movable frame outside 1 is in an intermediate position (substantially halfway). This position is suitable for receive the volume quantity of the mixture without overflow plaster liquid to be poured. The fixed mold bottoms 2 being provided with sealing means 16 at their molding 15 and the end plates 3 also being provided with sealing means 12 on the top of their faces external with internal adjacent faces of the frame exterior 1, the assembly thus produces a sealed container low height, allowing the mixture to spill plaster to be poured without turbulence or introduction of air. This tank allows the natural distribution of the liquid mixture of plaster above the mold bases 2 and the release of air bubbles trapped by the fibers introduced during mixing, this using the vibrator above immersed in the liquid mixture.

On notera que le déversement du plâtre(figure 6) est effectué à une hauteur très inférieure a la hauteur réelle des plaques, et que dans aucune de ces opérations les fonds de moule fixes 2 ne bougent, ce qui permet de réduire la hauteur des mélangeurs, des machines et des bâtiments recevant l'installation. La hauteur de la machine selon la figure 7 peut être réduite à une hauteur égale a deux fois la hauteur de la plaque de plâtre augmentée des épaisseurs, respectivement, des fonds de moule fixes 2, du châssis 4 support des plaque mobiles 3 et du châssis 6 support de l'ensemble.Note that the plaster spill (Figure 6) is performed at a height much lower than the actual height plates, and that in none of these operations the funds of fixed mold 2 do not move, which reduces the height of mixers, machines and buildings receiving the installation. The height of the machine according to the figure 7 can be reduced to a height equal to twice the height of the plasterboard increased by thicknesses, respectively, fixed mold bottoms 2, chassis 4 support for movable plates 3 and chassis 6 support for all.

Avec un sol représenté au niveau 0 (figures 6 à 9), la machine étant placée dans une fosse 17, il en résulte que l'encombrement au dessus du sol est égal sensiblement à la hauteur des plaques de plâtre 5 à produire.With a floor shown at level 0 (Figures 6 to 9), the machine being placed in a pit 17, it follows that the footprint above the ground is substantially equal to the height of plasterboard 5 to be produced.

Le passage de la position illustrée par la figure 6 à celle illustrée par la figure 7 passe par la montée du cadre extérieur 1 et des plaques intercalaires 3 ce qui permet de remplir les moules de faible épaisseur ou empreintes du moule réalisés à la remontée des plaques 3 au dessus des fonds de moule 2, cette remontée se faisant par aspiration du matériau sous vide. En effet, du fait de la viscosité du mélange eau-plâtre et du faible écartement des plaques intercalaires 3, le remplissage du moule ne peut être réalisé par simple coulée par gravité.The transition from the position illustrated in Figure 6 to that illustrated by figure 7 passes by the rise of the frame exterior 1 and intermediate plates 3 which allows fill thin molds or indentations with mold made by raising the plates 3 above the mold base 2, this ascent being by suction vacuum material. Indeed, due to the viscosity of the water-plaster mixture and small plate spacing dividers 3, the mold filling cannot be made by simple gravity casting.

A la position haute (figure 7), on obtient une pluralité de moules ou empreintes de moules précises indéformables et le remplissage effectué par aspiration sans turbulence évite toute entrée d'air. Les moules ainsi constitués sont maintenus dans cette position jusqu'au durcissement du produit.In the high position (figure 7), a plurality is obtained of molds or imprints of precise non-deformable molds and filling by suction without turbulence avoids any air intake. The molds thus formed are kept in this position until the product.

Le passage de la position illustrée par la figure 7 à celle illustrée par la figure 8 résulte de la descente du cadre extérieur 1, ce qui libère latéralement les plaques intercalaires 3 de leur guidage sur les glissières 7 du cadre extérieur 1. Le plâtre en se solidifiant dans les empreintes engendre en effet sur les plaques 3 une énorme pression de contact. Ceci permet de dégager complètement les plaques de plâtre solidifiées de l'effet de ceinture du cadre externe rigide 1 afin de procéder a leur évacuation ultérieure.The transition from the position illustrated in Figure 7 to that illustrated by figure 8 results from the descent of the outer frame 1, which laterally releases the plates spacers 3 of their guidance on the slides 7 of the external frame 1. The plaster solidifying in the footprints indeed generates on the plates 3 a huge contact pressure. This allows the plasterboard solidified from the belt effect of the rigid external frame 1 in order to carry out their evacuation later.

Le passage de la position illustrée par la figure 8 à celle illustrée par la figure 9 montre le dégagement des plaques intercalaires 3 des plaques de matériau moulé 5. Ce dégagement est rendu possible par ladite libération latérale des plaques intercalaires 3 à la simple pression atmosphérique. Le plâtre, établissant lors de sa prise le vide par rapport a la plaque intercalaire, permet alors son glissement avec des efforts faibles de frottement, les plaques de plâtre étant retenues par les fonds de moule 2 en position fixe. Ces faibles efforts de frottement des plaques 3 sur les plaques de plâtre permettent de procéder à l'extraction des plaques de plâtre sans atteindre le seuil de compression critique à l'extrusion précité qui détruirait la plaque de plâtre dans cette faible épaisseur.The transition from the position illustrated in Figure 8 to that illustrated by figure 9 shows the release of intermediate plates 3 of molded material plates 5. This release is made possible by said lateral release spacer plates 3 at the push of a button atmospheric. Plaster, establishing when it is taken empty compared to the midsole, then allows its sliding with low friction forces, the plasterboard being retained by the mold bottoms 2 in fixed position. These low friction forces of the plates 3 on the plasterboard allow to proceed plasterboard extraction without reaching the threshold compression critical to the aforementioned extrusion which would destroy the plasterboard in this thin thickness.

On notera que le cadre extérieur mobile 1 avec ses moulures 7 et 8 de moulage des deux chants verticaux des plaques de plâtre et de guidage des plaques mobiles, dévêt lors de sa descente le chant latéral des plaques mobiles 3 et les chants verticaux des plaques de plâtre appuyées sur les fonds de moule fixes 2. Toutes les contraintes de dilatation dues à la prise du plâtre sont libérées, les plaques de plâtre n'ayant à subir qu'un frottement sur leur chant (minime).Note that the mobile outer frame 1 with its moldings 7 and 8 for molding the two vertical edges of the plasterboard and movable plate guide, stripping during its descent the lateral edge of the mobile plates 3 and the vertical edges of the plasterboard resting on the fixed mold bases 2. All the constraints of dilations due to the setting of the plaster are released, the plasterboards having to undergo only one friction on their song (minimal).

En outre, avant le dégagement complet des plaques de plâtre, la stabilité verticale de celles-ci est assurée au moyen des plaques intercalaires 3 qui se déplacent de la position illustrée par la figure 8 à la position illustrée par la figure 9 et il est alors possible de saisir les plaques de plâtre en appui sur les fonds de moules 2 à l'aide d'une pince 18 (figure 9), ce qui les maintiendra verticales lorsque les plaques intercalaires 3 auront atteint leur position basse. L'enlèvement des plaques de plâtre à l'aide des pinces peut être effectué à ce moment, ceci sans interrompre la continuité du mouvement de descente des plaques 3.In addition, before the plates are completely disengaged plaster, the vertical stability of these is ensured by means of the intermediate plates 3 which move from the position shown in Figure 8 at the position shown by figure 9 and it is then possible to enter the plasterboard resting on the mold base 2 to using pliers 18 (figure 9), which will hold them vertical when the intermediate plates 3 have reaches their low position. The removal of the plates plaster using pliers can be performed at this time, this without interrupting the continuity of the descent movement plates 3.

Enfin et comme précité, pour améliorer encore le glissement des plaques intercalaires 3 et du cadre extérieur 1 sur les plaques de plâtre, les moulures 15 sont pourvus d'une gorge périphérique alimentée en huile de démoulage qui assure un huilage régulier des plaques intercalaires 3 et du cadre extérieur 1 lors de leurs déplacements par rapport aux fonds de moules 2. Effectivement, étant donné le faible espace entre deux plaques intercalaires 3 (à partir de 5 mm), il n'est pas possible d'appliquer efficacement par pulvérisation de l'huile sur l'intérieur du moule, comme on le fait de façon conventionnelle.Finally and as mentioned above, to further improve the sliding of the intermediate plates 3 and the outer frame 1 on the plasterboard, the moldings 15 are provided a peripheral groove supplied with demolding oil which ensures regular oiling of the intermediate plates 3 and the outer frame 1 when they move relative to mold bases 2. Indeed, given the low space between two intermediate plates 3 (from 5 mm), it is not possible to apply effectively by spraying the oil on the inside of the mold, as does it conventionally.

La figure 10 montre un dispositif pour réaliser les moulures supérieures des plaques de plâtre. Lorsque le plâtre a atteint un état de prise semi-pâteux en phase de moulage, ces moulures sont réalisées par une pluralité de galets 19 possédant la contre-forme de la moulure, et tournant autour d'un axe commun 20 perpendiculaire aux plaques de plâtre et simultanément a la rotation du galet, de manière à ce que la vitesse circonférentielle du galet soit identique à la vitesse de translation de l'axe ; ceci peut être réalisé par exemple par un système à un axe 20 portant lesdits galets 19 et comportant à ses deux extrémités un pignon 21 de diamètre égal à celui du galet et roulant sur une crémaillère fixe 22 placée au même niveau que la partie supérieure des plaques de plâtre.Figure 10 shows a device for performing the upper moldings of plasterboard. When the plaster has reached a semi-pasty setting state in the molding, these moldings are produced by a plurality of rollers 19 having the counter-shape of the molding, and turning around a common axis 20 perpendicular to plasterboard and simultaneously with the rotation of the roller, so that the circumferential speed of the roller is identical to the axis translation speed; this can be achieved for example by a 20-axis system carrying said rollers 19 and comprising at its two ends a pinion 21 of diameter equal to that of the roller and rolling on a fixed rack 22 placed on the same level than the top of the drywall.

Claims (14)

Procédé de moulage de plaques fines (5) de matériau coulable, notamment de plâtre, en prise de solidification avec dilatation au cours du moulage, dans des empreintes de moule d'une chambre de moulage, caractérisé en ce qu'il consiste à : recevoir dans la chambre de moulage ledit matériau coulé, dans un volume déterminé correspondant au moulage des dites empreintes de moule, vibrer le matériau coulé dans la chambre de moulage de façon à en évacuer l'air, et à en répartir parfaitement le niveau, former lesdites empreintes de moule au sein de la chambre de moulage, ceinturer ladite chambre de moulage pour lui permettre de résister sans déformation à la prise de solidification des plaques moulées, dans la durée de moulage, par exemple au moyen d'un cadre rigide externe (1) translaté autour de la chambre de moulage, désserrer ledit ceinturage de chambre de moulage après moulage de façon à libérer lesdites empreintes de moule de la pression de moulage du matériau, et évacuer les empreintes de moule et le matériau moulé pour traitement ultérieur. Method for molding thin plates (5) of flowable material, in particular plaster, which solidifies with expansion during molding, in mold cavities of a molding chamber, characterized in that it consists in: receiving said cast material in the molding chamber, in a determined volume corresponding to the molding of said mold cavities, vibrate the material poured into the molding chamber so as to evacuate the air, and to distribute the level perfectly, forming said mold imprints within the molding chamber, surround said molding chamber to allow it to resist without deformation the setting of solidification of the molded plates, during the molding period, for example by means of an external rigid frame (1) translated around the molding chamber, loosening said mold chamber belt after molding so as to release said mold imprints from the molding pressure of the material, and remove mold impressions and molded material for further processing. Procédé de moulage selon la revendication 1, caractérisé en ce que ladite formation des empreintes de moule est réalisée au moyen de plaques intercalaires rigides (3), mobiles en translation et guidées à joint étanche à la partie inférieure de la chambre de moulage, les plaques (3) étant réparties de façon régulière, parallèlement l'une à l'autre, dans la chambre de moulage, à faible distance l'une de l'autre, inférieure à 40 mm.Molding process according to claim 1, characterized in that said formation of fingerprints of mold is produced by means of rigid intermediate plates (3), mobile in translation and guided with watertight seal lower part of the molding chamber, the plates (3) being evenly distributed, parallel to one the other, in the molding chamber, at a short distance one on the other, less than 40 mm. Procédé de moulage selon l'une des revendications précédentes, caractérisé en ce que ledit cadre rigide externe (1) est un élément constituant de la chambre de moulage.Molding method according to one of claims previous, characterized in that said rigid frame external (1) is a constituent element of the molding. Procédé de moulage selon l'une des revendications précédentes, caractérisé en que le cadre rigide (1) est monté en guidage glissant ou roulant relativement aux plaques intercalaires (3) d'extrémité, étant élevé en position de moulage et abaissé pour le démoulage.Molding method according to one of claims previous, characterized in that the rigid frame (1) is mounted in sliding or rolling guide relative to end plates (3), being raised in molding position and lowered for demolding. Procédé de moulage selon l'une des revendications précédentes caractérisé en que la chambre de moulage est à forme de bac rectangulaire, ouvert vers le haut où le matériau à mouler est déversé, étant pourvue de lumières en son fond pour le passage étanche des plaques (3) formant empreintes de moule, et de moyens de guidage en translation des plaques (3).Molding method according to one of claims previous characterized in that the molding chamber is at rectangular container shape, open upwards where the molding material is poured out, being provided with lights in its bottom for the sealed passage of the plates (3) forming mold imprints, and means for guiding in translation plates (3). Procédé de moulage selon l'une des revendications précédentes, caractérisé en que la chambre de moulage est pourvue de fonds de moule (2) disposés entre les plaques (3).Molding method according to one of claims previous, characterized in that the molding chamber is provided with mold bases (2) arranged between the plates (3). Procédé de moulage selon la revendication 6, caractérisé en que les fonds de moule (2) sont fixes, de sorte que les plaques moulées (5) n'ont pas à être bougées, les plaques (3) étant dégagées en translation vers le bas hors des plaques moulées, celles-ci étant alors maintenues au cours de ce dégagement.Molding process according to claim 6, characterized in that the mold bases (2) are fixed, of so that the molded plates (5) do not have to be moved, the plates (3) being released in downward translation outside the molded plates, these being then maintained during this release. Procédé de moulage selon la revendication 7, caractérisé en que le cadre rigide (1) comporte des rainures (7) de guidage des plaques intercalaires (3), et des moulures (8) pour le moulage du chant des plaques de matériau à mouler, de sorte que lors du démoulage, le mouvement du cadre extérieur (1) dévêt le chant latéral des plaques mobiles (3) et le chant des plaques de plâtre solidifiées (5) qui sont appliquées sur les fonds de moule fixes (2), libérant ainsi pratiquement toutes les contraintes de dilatation dues à la prise du plâtre, les plaques mobiles (3) pouvant ensuite descendre sans effort en position basse tout en maintenant verticales les plaques de plâtre réalisées (5).Molding process according to claim 7, characterized in that the rigid frame (1) has grooves (7) for guiding the intermediate plates (3), and moldings (8) for molding the edge of the plates material to be molded, so that during demolding, the movement of the outer frame (1) undresses the lateral edge of the movable plates (3) and the edge of the plasterboard solidified (5) which are applied to the mold bases fixed (2), thus freeing up practically all expansion constraints due to the setting of plaster, movable plates (3) which can then descend effortlessly low position while keeping the plates vertical plaster made (5). Procédé de moulage selon la revendication 8, caractérisé en que les plaques moulées (5) sont maintenues par un dispositif à pince mobile de manutention (18) à prise sur le chant des plaques (5).Molding process according to claim 8, characterized in that the molded plates (5) are held by a movable gripper device with grip (18) on the edge of the plates (5). Procédé de moulage selon l'une des revendications précédentes 7-9, caractérisé en que le cadre rigide externe (1) étant descendu vers le bas et de même les plaques (3) au niveau des fonds de moule (2), la manutention des plaques moulées (5) peut être exécutée à faible distance en hauteur des fonds de moule (2) et donc avec bénéfice dans la hauteur de manutention de ces plaques.Molding method according to one of claims previous 7-9, characterized in that the rigid external frame (1) being lowered down and so are the plates (3) at the level of the mold bases (2), the handling of the plates molded (5) can be executed at low height mold bottoms (2) and therefore with height benefit handling of these plates. Dispositif pour la mise en oeuvre du procédé selon l'une des revendications précédentes, caractérisé en ce qu'il comporte : une chambre de moulage apte à recevoir le matériau coulé, dans un volume déterminé correspondant au moulage des plaques à réaliser, un dispositif vibreur du matériau coulé dans la chambre de moulage, un dispositif apte à former des empreintes de moule au sein de la chambre de moulage au moyen de plaques intercalaires mobiles (3) au sein de la chambre de moulage, un dispositif apte à ceinturer la chambre de moulage et empêchant toute déformation de cette dernière lors de la prise de solidification des plaques moulées (5) , et a la désserrer au démoulage de façon à permettre l'évacuation facile et sans extrusion des plaques moulées (5). Device for implementing the method according to one of the preceding claims, characterized in that it comprises: a molding chamber capable of receiving the cast material, in a determined volume corresponding to the molding of the plates to be produced, a vibrating device for the material poured into the molding chamber, a device capable of forming mold imprints within the molding chamber by means of mobile intermediate plates (3) within the molding chamber, a device capable of encircling the molding chamber and preventing any deformation of the latter during the setting of the solidification of the molded plates (5), and loosening it on demolding so as to allow easy evacuation and without extrusion of the molded plates ( 5). Dispositif pour la mise en oeuvre du procédé selon l'une des revendications précédentes 1-10, caractérisé en ce qu'il comporte un châssis fixe (6) supportant une pluralité de fonds de moule (2) montés sur des supports fixes (9), ces supports (9) permettant le passage d'un châssis mobile (4) sur lequel est fixée une pluralité de plaques mobiles (3) pouvant coulisser entre les fonds de moule (2) jusqu'à occuper une position basse où le chant supérieur des plaques mobiles (3) est au même niveau que le dessus des fonds de moule (2), et une position haute correspondant à la hauteur maximale de moulage, ainsi qu'un cadre extérieur mobile (1) coulissant autour des fonds de moule (2) d'une position basse au niveau de la surface supérieure des fonds de moule (2) jusqu'à une position haute identique à la position haute des plaques mobiles (3), l'ensemble des plaques mobiles (3), des fonds de moule (2) et du cadre extérieur mobile (1) constituant en position intermédiaire du cadre (1) ladite chambre de moulage où le déversement du matériau est possible, et dans une position haute du cadre (1) et des plaques (3), une pluralité de moules précis et indéformables dans lesquels le produit à mouler est entré par aspiration sans entrée d'air et maintenu jusqu'à son durcissement, et libérant la chambre de moulage en position basse du cadre (1) pour permettre aux plaques mobiles (3) d'être translatées en position basse sans effort de frottement sur les plaques de plâtre, tout en maintenant ces dernières verticales avant leur évacuation ultérieure.Device for implementing the method according to one of the preceding claims 1-10, characterized in that that it comprises a fixed frame (6) supporting a plurality mold bottoms (2) mounted on fixed supports (9), these supports (9) allowing the passage of a mobile chassis (4) on which is fixed a plurality of movable plates (3) can slide between the mold bases (2) up to occupy a low position where the upper edge of the plates mobile (3) is at the same level as the top of the mold (2), and a high position corresponding to the height maximum molding, as well as a movable external frame (1) sliding around the mold bottoms (2) from one position low at the top surface of the mold bottoms (2) to a high position identical to the high position movable plates (3), all of the movable plates (3), mold bottoms (2) and movable outer frame (1) constituting in the intermediate position of the frame (1) said molding chamber where the material spill is possible, and in a high position of the frame (1) and plates (3), a plurality of precise and non-deformable molds into which the molding material has entered by suction without air intake and maintained until it hardens, and releasing the molding chamber in the lower position of the frame (1) to allow the movable plates (3) to be translated into low position without friction effort on plasterboards, while maintaining them vertical before their subsequent evacuation. Dispositif selon l'une des revendications 11 et 12, caractérisé en ce que les fonds de moules fixes (2) possèdent un moyen d'étanchéité périphérique (16) et les deux plaques mobiles d'extrémité (3), un moyen d'étanchéité (12) sur le haut de leurs faces extérieures, relativement aux faces internes latérales correspondantes du cadre mobile (1), de sorte que les plaques mobiles (3) amenées en position basse et le cadre mobile (1) amené dans une position intermédiaire adaptée, forment avec les fonds (2) un bac étanche de faible hauteur permettant le déversement du plâtre en mélange liquide sans turbulences et le débullage du mélange par des moyens vibrants.Device according to one of claims 11 and 12, characterized in that the fixed mold bases (2) have a peripheral sealing means (16) and the two movable end plates (3), a sealing means (12) on the top of their outer faces, relatively to the corresponding lateral internal faces of the movable frame (1), so that the movable plates (3) brought in low position and the movable frame (1) brought into a suitable intermediate position, form with bottoms (2) a tight, low-rise container for spillage plaster in a liquid mixture without turbulence and the boiling of the mixture by vibrating means. Produit obtenu par la mise en oeuvre du procédé défini selon l'une des revendications précédentes 1-10, caractérisé en ce qu'il est constitué sous forme de plaques (5) d'épaisseur variable d'au moins environ 5 mm d'épaisseur, avec ou non des bords à emboítement d'assemblage des plaques.Product obtained by implementing the process defined according to one of the preceding claims 1-10, characterized in that it is constituted in the form of plates (5) of variable thickness of at least about 5 mm thick, with or without interlocking edges plate assembly.
EP97402921A 1997-12-03 1997-12-03 Process for moulding thin panels from castable material, in particular plaster, device for carrying out the process and obtained product Expired - Lifetime EP0922548B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AT97402921T ATE215433T1 (en) 1997-12-03 1997-12-03 METHOD FOR PRODUCING THIN PLATES FROM A CASTABLE MATERIAL, IN PARTICULAR PLASTER, DEVICE FOR CARRYING OUT THE METHOD AND PRODUCT PRODUCED THEREFROM
PT97402921T PT922548E (en) 1997-12-03 1997-12-03 PROCESS OF MOLDING OF FINISHED PLATES OF MOLDABLE MATERIAL NAMELY STUCK DEVICE FOR ITS EXECUTION AND OBTAINED PRODUCT
DK97402921T DK0922548T3 (en) 1997-12-03 1997-12-03 Process for casting thin sheets of a flowable material, especially gypsum, device for carrying out the method and product thus produced
DE69711644T DE69711644T2 (en) 1997-12-03 1997-12-03 Method for producing thin plates from a castable material, in particular gypsum, device for carrying out the method and product produced therewith
ES97402921T ES2175307T3 (en) 1997-12-03 1997-12-03 PROCEDURE FOR THE MOLDING OF FINE PLATES OF COLLABLE MATERIAL, MAINLY OF PLASTER, DEVICE FOR THEIR REALIZATION AND PRODUCT OBTAINED.
EP97402921A EP0922548B1 (en) 1997-12-03 1997-12-03 Process for moulding thin panels from castable material, in particular plaster, device for carrying out the process and obtained product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97402921A EP0922548B1 (en) 1997-12-03 1997-12-03 Process for moulding thin panels from castable material, in particular plaster, device for carrying out the process and obtained product

Publications (2)

Publication Number Publication Date
EP0922548A1 true EP0922548A1 (en) 1999-06-16
EP0922548B1 EP0922548B1 (en) 2002-04-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP97402921A Expired - Lifetime EP0922548B1 (en) 1997-12-03 1997-12-03 Process for moulding thin panels from castable material, in particular plaster, device for carrying out the process and obtained product

Country Status (6)

Country Link
EP (1) EP0922548B1 (en)
AT (1) ATE215433T1 (en)
DE (1) DE69711644T2 (en)
DK (1) DK0922548T3 (en)
ES (1) ES2175307T3 (en)
PT (1) PT922548E (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015005762U1 (en) 2015-08-13 2015-09-03 Grenzebach Bsh Gmbh Apparatus for the production of solid and hollow gypsum wall components in quick change
DE102015010522A1 (en) 2015-08-13 2017-02-16 Grenzebach Bsh Gmbh Apparatus and method for the production of solid and hollow gypsum wall elements in rapid change

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513562A1 (en) * 1981-09-29 1983-04-01 Logistique Manutention Stockag Mould for manufacture of plaster tiles - uses T=shape inserts sliding between parallel cruciform sections to form row of rectangular open mould cavities
EP0161374A1 (en) * 1984-05-15 1985-11-21 Jost AG Heimberg Plant and method for making building panels of plaster
EP0610529A1 (en) * 1993-02-10 1994-08-17 Heinz Falk Process and device for making exact-sized panel-shaped elements
FR2750916A1 (en) * 1996-07-09 1998-01-16 Sarl Alpha Platre Mould for thin plaster panels

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2513562A1 (en) * 1981-09-29 1983-04-01 Logistique Manutention Stockag Mould for manufacture of plaster tiles - uses T=shape inserts sliding between parallel cruciform sections to form row of rectangular open mould cavities
EP0161374A1 (en) * 1984-05-15 1985-11-21 Jost AG Heimberg Plant and method for making building panels of plaster
EP0610529A1 (en) * 1993-02-10 1994-08-17 Heinz Falk Process and device for making exact-sized panel-shaped elements
FR2750916A1 (en) * 1996-07-09 1998-01-16 Sarl Alpha Platre Mould for thin plaster panels

Also Published As

Publication number Publication date
DE69711644D1 (en) 2002-05-08
ATE215433T1 (en) 2002-04-15
PT922548E (en) 2002-09-30
ES2175307T3 (en) 2002-11-16
DK0922548T3 (en) 2002-07-29
EP0922548B1 (en) 2002-04-03
DE69711644T2 (en) 2002-11-14

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