EP0619773B1 - Verfahren und vorrichtung zum herstellen von baublöcken aus einem hydraulischen bindemittel wie gips, einem inerten material wie sand und wasser - Google Patents

Verfahren und vorrichtung zum herstellen von baublöcken aus einem hydraulischen bindemittel wie gips, einem inerten material wie sand und wasser Download PDF

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Publication number
EP0619773B1
EP0619773B1 EP92911263A EP92911263A EP0619773B1 EP 0619773 B1 EP0619773 B1 EP 0619773B1 EP 92911263 A EP92911263 A EP 92911263A EP 92911263 A EP92911263 A EP 92911263A EP 0619773 B1 EP0619773 B1 EP 0619773B1
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EP
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Prior art keywords
mold
mixture
plates
station
block
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EP92911263A
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English (en)
French (fr)
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EP0619773A1 (de
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Jean Brouard
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BROUARD, JEAN
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Individual
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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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/04—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping in moulds moved in succession past one or more shaping stations
    • 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
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0063—Control arrangements
    • B28B17/0081—Process control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor

Definitions

  • the invention relates to a method and a device. for manufacturing building blocks by molding under high pressure of a mixture of a hydraulic binder such as plaster, an inert filler such as sand and water.
  • a hydraulic binder such as plaster
  • an inert filler such as sand and water.
  • This process involves molding under high pressure the mixture of plaster, sand and water for a sufficient time, of the order of 2 to 3 mn, corresponding to the hydration under pressure of the plaster which results in an upset expansion of the plaster to inside the mold, as well as by densification and a reorientation of its crystal lattice.
  • the building blocks thus obtained have remarkable characteristics: a compressive strength much greater than 100 kg / cm 2 , a hardness equivalent to that of soft stone, good resistance to humidity and frost, and dimensional accuracy of the order of 1/10 th of a millimeter, which allows them to be mounted directly on top of each other without the interposition of traditional joints between the blocks.
  • the present invention relates to improvements important to the process and the device mentioned above, which further improve the characteristics of the aforementioned building blocks, standardize their quality and reduce their price by come back.
  • the invention provides for this purpose a method of manufacture of building blocks from a mixture a hydraulic binder such as plaster, a inert filler such as sand and water, the binder hydraulic increasing volume during its hydration and the above mixture being molded under pressure for a sufficient time to obtain a hydration under pressure of the hydraulic binder and a densification of its crystal lattice, the process consisting in placing a metered quantity of the mixture in a mold with non-deformable side walls and trays horizontal upper and lower movable in vertical translation in the mold with little play with respect to the side walls, characterized in that it then involves slowly moving at least one of trays towards the inside of the mold on successive strokes pre-determined to tamp the mixture to inside the mold, then to give a height predefined to the block to be obtained by compressing gradually mix in the mold, to keep in places said trays for the aforementioned time hydration of the hydraulic binder by resisting its volume expansion and then to rule out one of trays to unmold the block by moving the
  • the slow compression of the mixture placed in the mold has the effect, successively, of packing the mixture in the mold by reducing its expansion, to drive out the air in the mixture and speed up wetting of the mixture thanks to the pressurization of the water, to drive out out of the mold a possible excess of water compared to the amount of water just necessary for the hydration of the plaster, and precisely define the height (or dimension ink horizontal mold trays) of building block to be obtained. Maintaining mold trays, in the position they occupy at the end of the compression phase, keeps this height during the next phase, which is a phase pressure hydration and thwarted expansion of plaster in the mold.
  • the building blocks thus produced have well-defined dimensions and compressive strength which is at least equal to a predetermined value.
  • this method also consists in detecting the increase in pressure in the mold resulting from thwarted expansion of the hydraulic binder, to define the end of the upset expansion time in the mold and unmold the building block, when this pressure has reached a predetermined value.
  • this predetermined value of the pressure in the mold will only correspond to around 70-90% complete hydration of the hydraulic binder in the mold, so as to reduce the effort required for the demoulding of building blocks and wear of mussels.
  • the invention also provides a device for carrying out this process, comprising a mold non-deformable vertical walls and horizontal plates upper and lower, which are movable in translation in the mold with a small clearance compared to the walls vertical, means for positioning the plate lower in the mold, means for filling the mold by a metered amount of the above mixture, means of positioning the upper plate in the mold, at least one hydraulic press for moving minus one of the trays inside the mold for pack the mixture in the mold and compress it under high pressure to the desired block height at obtain means for removing at least one of the trays of the mold, and demolding means with hydraulic cylinder to remove the block from the mold, characterized in that the press is commanded to slowly move the aforementioned plates inside the mold on races predetermined successions of compaction and compression and in that the device comprises means independent of the press to keep the trays in the mold during the expansion of the binder hydraulic resulting from its hydration.
  • the device can also include means for detecting the increase in pressure of the mixture in the mold, resulting from thwarted expansion of the hydraulic binder.
  • At least the upper tray of the mold includes an oblique rim on at least part from the periphery of its contact face with the mixture in the mold, to form a chamfer (continuous or discontinuous) on at least part of the peripheral edge top of the building block.
  • This chamfer avoids the risks cracking or bursting of the upper peripheral edge of the building block, when the plates of the mold are released at the end of the expansion phase upset, before demolding.
  • the hydraulic press includes upper plates and lower between which the mold is placed and which are connected by a mechanical transmission specific to positively define a determined distance between the press plates, corresponding to the desired height of the building block, and to ensure parallelism of these trays.
  • the invention makes it possible to automate reliably and safely the manufacturing process building blocks, improve and standardize their quality, and very significantly increase their production rate.
  • the building block that was represented in Figures 1 to 3 is substantially identical to that which has been described in the International Application WO 88/03916 and is of rectangular parallelepipedal ton, with dimensions which are for example 15cm x 15cm x 30 cm.
  • the invention allows also the manufacture of blocks having shapes and dimensions different.
  • the upper face 12 of this block has protrusions 14 of low height, square or circular in shape for example.
  • the underside 16 of the block includes a cavity 18 of a relatively large volume (of the order of 30% of the total volume for example), which spans a certain height inside block 10 and the outlet of which on the underside 16 of the block is delimited by longitudinal 20 and transverse 22 edges which define housings of projections 14 on the upper face from another block.
  • the lower face 16 of the block comprises a longitudinal groove or channel 24 extending along its entire length, which communicates with the cavity 18 and which opens at one of its longitudinal ends in a vertical groove 26 formed over the entire height of the block, in one of its vertical end faces.
  • the blocks 10 are intended to be placed on top of each other and next to each other, being all oriented in the same direction, to form a wall with horizontal rows of blocks in which the blocks are offset from each other by half a length from one row to another.
  • Relatively liquid plaster is poured twice into the vertical grooves 26 to partially fill the cavities 18 of the blocks covering the projections 14 of the upper faces lower blocks and then to fill the vertical grooves 26.
  • a chamfer 28 is formed on at least part of the edges peripherals of the upper and lower sides of the block of construction. Identical chamfers can also be formed on the vertical edges of the block.
  • Figures 4 and 5 schematically represent a mold used for the manufacture of the block shown in Figures 1 to 3.
  • This mold has four vertical walls 30 steel, which are rigidly assembled together, of preferably by bolts 32 and which are positioned relative to each other by means of centering pins 34 to precisely define the length and width of the molding cavity, with a tolerance dimensional of the order of a few hundredths of a millimeter.
  • the internal faces of the vertical walls 30 are ground to be perfectly smooth and flat.
  • One of the vertical walls 30, forming one of the small vertical end faces of the mold has on all its height a vertical projection 36 of semi-cylindrical shape intended to form the vertical groove 26 of the block of construction to be obtained.
  • the vertical walls 30 of the mold have a height greater than that of the block to be obtained, so as to receive between them the upper plate 38 and the plate lower 40 of the mold.
  • the vertical walls 30 of the mold will have a height of between 25 and 30 cm approximately.
  • the mold trays are rectangular plates made of steel, sized to be movable by vertical translation inside the mold, with a small clearance of a few tenths of a millimeter with respect to the vertical walls.
  • internal faces of the vertical walls 30 form with the vertical a low draft angle of around 0.5 ° to facilitate demoulding of the building block.
  • the underside of the upper plate 38 of the mold has two small cavities 42, the shapes of which correspond to those of the projections 14 on the upper face of the building block to be obtained, and a ledge oblique peripheral 44 for forming the chamfer 28 of the block to get.
  • This oblique edge can only be provided on part of the periphery of the underside of the tray 38.
  • a small vertical face of the tray 38 has a corresponding semi-cylindrical groove to the vertical projection 36.
  • the upper face of the lower plate 40 carries a core 46 intended to form the cavity 18 and the channel longitudinal 24 in the underside of the block to be obtained.
  • a small vertical face of this tray 40 and of the core 46 has a semi-cylindrical vertical groove, intended to receive the vertical projection 36 of the corresponding side wall 30 of the mold.
  • the upper edge of the plate 40 also has a peripheral rim oblique formation of the aforementioned chamfer 28 of the building block. As before, this ledge oblique can be planned only on part of the periphery of the plate 40.
  • At least one of the large vertical walls 30 of the mold easily attached to other walls by any suitable means, including for example hinges and / or locking levers. Withdrawal of this large wall 30 of the mold can facilitate the demoulding of the building block.
  • this wall 30 may be intended to receive on its internal face a plate of any suitable material intended for form a facade cladding on the building block.
  • FIG. 6 The different positions of a manufacturing device of a building block according to the invention have have been shown diagrammatically in FIG. 6.
  • the first station of the device according to the invention is a mold filling station 50.
  • the mold 50 rests on a support surface 52, which can be part means of transfer of the molds between the different manufacturing device positions.
  • the lower tray 40 of the mold is also carried by this surface support 52, so as to occupy a position defined at inside the mold.
  • Means 54 allow dumping inside the mold a metered amount of a mixture 56 of a hydraulic binder such as plaster, a inert filler such as sand, and water.
  • the means 54 of this mixture are advantageously designed to also carry out the humidification of a dry mixture of plaster and sand with an amount of water that will be noticeably equal or slightly greater than the quantity of water necessary for the optimal compactness of the mixture (this quantity of water being greater than that necessary hydration of the plaster).
  • the mold is then transferred to the next station, designated by reference B, where the upper plate 38 of the mold is placed in the mold and rests on the mixture 56 of plaster, sand and water.
  • one or other of the A stations and B or both stations can include a vibrating table allowing to carry out an early compaction of the mixture 56 in the mold, an evacuation of the occluded air and better wetting.
  • the next station basically includes a two-wheel hydraulic press movable horizontal plates 58 and 60 between which is placed the mold 50.
  • One or more hydraulic cylinders 62 allow to move the press plates, for example in synchronism, in opposite directions to bring them together and to separate them from each other.
  • the piston rods of the cylinders 62 are supported on the upper plate 58 of the press while their cylinders are carried by a horizontal plate 64 movable in vertical translation and connected by tie rods 66 to the lower plate 60 of the press.
  • the tie rods 66 ensure the obtaining and maintaining the desired distance between the trays of the mold, and are the seat of tension forces that we can measure to check the proper execution of the process.
  • the upper plate 58 of the press applies on the upper plate 38 of the mold while the vertical walls 30 and the lower plate 40 of the mold rest on the lower plate 60 of the hurry.
  • the distance between mold trays 38 and 40, corresponding to the height desired of the block to be obtained, is preferably defined by positively by a mechanical transmission connecting between them the plates 58 and 60 of the press and ensuring their parallelism.
  • station D can include for example means 68 for supporting the mold and the lower plate 40, and support means on the upper plate 38, these means which may be of the mechanical type, for example levers 70 rotatably mounted on a support 72, and / or of the hydraulic type, for example jacks 74 carried by the support 72.
  • the mold 50 is kept at station D for a period sufficient for hydration of the plaster to occur at around 70-90% inside the mold 50. This period can vary from 1.5 to 5 minutes approximately, depending the temperature, type and quantity of plaster used, and the degree of hydration of the plaster that is to be obtained under pressure.
  • the increase in pressure in the mold 50, which results from the contrared expansion of the plaster, can be very significant and reach values of the order of 100 kg / cm 2 .
  • the support means 70, 74 will therefore have a sufficient strength to resist the pressure exerted on the upper plate 38 of the mold.
  • the pressure inside the mold is detected by appropriate means, so that what the support means 70, 74 release the upper plate 38 of the mold as soon as this pressure has reached a predetermined value.
  • Hydraulic cylinders can also be fitted 74 of a pressure relief valve, so that the pressure inside the mold 50 cannot exceed one predetermined value.
  • a means 76 for measuring the pressure in a jack 74 there is shown diagrammatically at station D a means 76 for measuring the pressure in a jack 74, this means 76 being associated with a means 78 actuator.
  • the support means 70, 74 on the upper plate 38 of the mold are separated and the mold is transferred to the next station designated by the reference E, where the upper plate 38 of the mold is removed.
  • the mold is then transferred to the next station, designated by the reference F and which is a position of demoulding.
  • the vertical walls 30 of the mold are immobilized between stops, and one or more hydraulic cylinders 80 exert a significant force on the lower plate 40, to push it upwards and allow the extraction of the block 82 by means 84 for taking and transfer, the block 82 being manipulable and usable as soon as it leaves the mold.
  • the force provided by the jack or jacks 80 can be very large (for example of the order of 100 kg / cm 2 ) over a short stroke, after which the vertical clearance of the faces 30 facilitates movement towards the top of the lower plate 40.
  • the position held the longest by molds is station D where thwarted expansion occurs plaster for a period between 1.5 and 5 mn approximately.
  • the device according to the invention can therefore include several of these stations, arranged to be movable on a path of determined length between the station C and station E, for example by means of a carousel including ten D stations, not turning at not between station C and station E.
  • the entire system can also be present in the form of a rotating carousel between posts A, C and F, and comprising a certain number of D stations, as well as means for installing and removing upper covers 38 of the molds.
  • the production rate is therefore not limited by the duration of operations at station C, which is about fifteen seconds, and can therefore reach 200 blocks / hour approximately.
  • the device according to the invention includes only the stations A, C and F, the upper plate 38 of the mold then being permanently fixed under the upper plate 58 of the press.
  • the compaction operations of the mixture in the mold, compacting and holding the trays in place of the mold during the thwarted expansion of the plaster are carried out at press level.
  • the production rate is then about twenty blocks per hour (if only molds with single imprint are used), but is obtained by a relatively machine simple including only filling stations for molds and mold release blocks and a hydraulic press. Two workers are enough to operate of this machine.
  • the device according to the invention when designed to offer a production rate high, it can be provided at the outlet of an installation plaster production and then use the hot plaster straight out of this facility, which reduces moreover the duration of the thwarted expansion and is favorable to increasing the production rate.
  • the mold consisting essentially of the four vertical walls 30, of the tray upper 38 and lower plate 40, is belted and supported by at least one rigid frame 86 of rectangular shape on the sides of which the vertical walls 30 of the mold are fixed in a removable way.
  • Two adjacent sides of the frame 86 include means 88 associated with corresponding vertical walls 30 of the mold for the move transversely inward and outward of the mold, as indicated by the double arrows in FIG. 8, over a short distance, for example from around 1 to 10 mm approximately.
  • These means 88 can be mechanical, for example screw, cam or lever, or hydraulic.
  • the base of the frame 86 may also include means 90 on which the lower plate 40 rests of the mold.
  • the upper plate 38 of the mold has means 92, for example mechanical, for locking in position between the vertical walls 30 when the upper plate 38 is at a predetermined distance from the lower plate 40, this distance being equal to the height of the block to be manufactured.
  • the installation shown in Figure 9 includes a number of posts A, B, C, D, E, F and G to which the mold of Figures 7 and 8 is successively brought by transfer means shown schematically by the arrows joining the various posts of the Figure 9.
  • transfer means will act on the frame 86 which surrounds and supports the mold well said.
  • the first station A of the installation of the figure 9 is a station for filling the mold with a mixture plaster, sand and water.
  • the set lower 40 of the mold is supported on the means of support 90, and the two movable vertical walls 30 of the mold were brought together, to delimit between them and with two other vertical walls 30 a volume of molding to the size of the block to be manufactured.
  • the tray upper 38 of the mold has been moved aside, to allow the filling the mold with a mixture of plaster and sand and water.
  • the upper tray 38 is placed on the mold and the wet mixture placed in the mold can be lightly packed and compressed as already described with reference to Figure 6.
  • the next item C is the compression station slow mixing in the mold, and includes a press which will act on the upper plate 38 to compress the mix in the mold up to the desired height of the block to be manufactured.
  • the means 92 are actuated to block the upper plate 38 in position on the vertical walls 30 of the mold, then the mold and its frame 86 are transferred from station C at station E of mold opening, journey time between these two posts corresponding to the duration of the thwarted expansion phase D of the plaster in the mold. This time may be sufficient for hydration plaster is complete between stations C and E, which guarantees the dimensional stability of the blocks after their demoulding.
  • the means 92 are activated to release the upper plate 38 and the means 88 are also actuated to spread outwards the two movable walls 30 of the mold.
  • the mold and its frame 86 are then transferred at station F where it is sufficient to lift the lower plate 40 to unmold the building block. Because the prior spacing of the movable walls 30 of the mold, this release takes place without problem and without friction of the block on the internal faces of the walls 30 of the mold, and therefore without significant wear of these faces.
  • the mold and its frame 86 are then transferred at station G, which is a mold cleaning station, for example by means of pressurized air jets or pressurized water jets, which can also be possibly a station for installing a facing plate on the internal face of one of the walls 30 of the mold.
  • station G is a mold cleaning station, for example by means of pressurized air jets or pressurized water jets, which can also be possibly a station for installing a facing plate on the internal face of one of the walls 30 of the mold.
  • the mold and the frame 86 are finally brought back to the filling station A, where the means 88 can be new actuated to replace the movable walls 30 in molding position, before filling the mold with the mixture of plaster, sand and water.
  • the mold of Figures 7 and 8 has advantages very important, as it helps to avoid any problem with demolding, and perform hydration total pressure plaster in the mold, all guaranteeing a high dimensional accuracy of the order of the 10th of a millimeter on the building block thus manufactured.
  • the frame 86 which surrounds the mold is of robust construction to be rigid and undeformable.
  • the frames 86 each equipped with a mold can be juxtaposed, for example by two or by four, to be transferred together from one station to another in the installation of Figure 9, which is then equipped with a press multiple, to double or quadruple the production rate.
  • the method and the device according to the invention are applicable to the manufacture of elements and blocks of construction having different shapes and dimensions those of the block represented in FIGS. 1 to 3, and in particular solid blocks, cavity blocks multiples, planar elements, chains, etc ...

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Claims (15)

  1. Verfahren zur Herstellung eines Baublockes, ausgehend von einer Mischung aus einem hydraulischen Bindemittel, wie Gips, einem inerten Material, wie Sand, und Wasser, wobei das hydraulische Bindemittel das Volumen während seiner Hydrierung vergrößert und die vorgenannte Mischung unter Druck während einer Zeit geformt wird, welche ausreicht, um eine Hydrierung unter Druck des hydraulischen Bindemittels zu verwirklichen und eine Verdichtung seines Kristallnetzes zu erhalten, wobei das Verfahren darin besteht, eine abgemessene Menge der Mischung in eine Form mit unverformbaren lateralen Wänden (30) und oberen und unteren horizontalen Platten (38, 40) einzubringen, welche in vertikaler Richtung in der Form mit einem geringen Spiel bezüglich der lateralen Wände versetzbar sind, um langsam wenigstens eine der Platten gegen das Innere der Form in vorbestimmten aufeinanderfolgenden Gängen zu versetzen, um die Mischung in das Innere der Form zu pressen, dann dem Block eine vorbestimmte Höhe zu verleihen, indem die Mischung nach und nach in der Form komprimiert wird, indem die Platten während der vorgenannten Dauer der Hydrierung des hydraulischen Bindemittels in Stellung gehalten werden, um seiner Volumenausdehnung zu widerstehen und dann eine der Platten entfernt wird, um den Block durch Verschieben der anderen Platte gegen das Innere der Form aus der Form zu brechen.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß es darin besteht, die Erhöhung des Druckes in der Form festzustellen, welcher durch die unerwünschte Expansion des hydraulischen Bindemittels entsteht, um das Ende der genannten Zeit zu definieren und dann den Baublock aus der Form zu brechen, wenn der Druck einen vorbestimmten Wert erreicht hat.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß es darin besteht, bestimmte laterale Wände der Form über eine geringe Distanz gegen das Äußere zu versetzen, um das aus der Form brechen zu erleichtern.
  4. Vorrichtung zur Durchführung des Verfahrens gemäß den Ansprüchen 1, 2 oder 3, umfassend eine Form mit nicht verformbaren vertikalen Wänden (30) und mit oberen und unteren horizontalen Platten (38, 40), welche in der Form mit einem geringen Spiel bezüglich der vertikalen Wände versetzbar sind, Einrichtungen (52, 90) zur Positionierung der unteren Platte in der Form, Einrichtungen (54) zum Befüllen der Form mit einer abgemessenen Menge der vorgenannten Mischung, Einrichtungen zum Einstellen der oberen Platte (38) in der Form, wenigstens eine hydraulische Presse (62), um wenigstens eine der Platten (38, 40) im Inneren der Form zu versetzen, um die Mischung in der Form zu pressen und sie unter erhöhtem Druck zu komprimieren, bis die gewünschte Höhe des zu erhaltenden Blockes erreicht ist, Einrichtungen zum Zurücknehmen wenigstens einer der Platten der Form und Einrichtungen zur Entformung mit hydraulischem Stellglied (80), um den Block aus der Form zu entfernen, dadurch gekennzeichnet, daß die Presse (62) zur langsamen Versetzung der vorgenannten Platte(n) im Inneren der Form bei vorbestimmten aufeinanderfolgenden Reihen der Verpressung und Komprimierung gesteuert wird, und dadurch, daß die Vorrichtung Einrichtungen (70, 74, 90, 92) umfaßt, welche unabhängig von der Presse sind, um die Platten in der Form während der Expansion des hydraulischen Bindemittels, welche aus seiner Hydrierung resultiert, zu halten.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß sie Einrichtungen (76) zur Feststellung der Erhöhung des Druckes der Mischung in der Form umfaßt, welcher aus der unerwünschten Expansion des hydraulischen Bindemittels resultiert.
  6. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die vertikalen Wände der Form durch wenigstens einen steifen Rahmen (86) zur Stützung umfaßt sind, welcher Einrichtungen (88) zur transversalen Versetzung über eine geringe Distanz wenigstens zweier vertikaler benachbarter Wände der Form umfaßt.
  7. Vorrichtung nach einem der Ansprüche 4 bis 6, dadurch gekennzeichnet, daß sie wenigstens einen Posten (A) zum Befüllen der Form, einen Posten (B) zum Verdichten der Mischung in der Form und einen Posten (F) zur Entformung sowie Einrichtungen zum Transport der Form zwischen diesen drei Posten umfaßt.
  8. Vorrichtung nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß sie des weiteren Einrichtungen (84) zur Aufnahme und zum Transport des aus der Form freigegebenen Blockes umfaßt.
  9. Vorrichtung nach einem der Ansprüche 4 bis 8, dadurch gekennzeichnet, daß wenigstens die obere Platte (38) der Form eine abgeschrägte Leiste (44) entlang wenigstens einem Teil des Umfanges ihrer Kontaktfläche mit der Mischung in der Form umfaßt, um eine Keilschrägung (28) über wenigstens einen Teil der oberen Umfangskante des Baublockes auszubilden.
  10. Vorrichtung nach einem der Ansprüche 4 bis 9, dadurch gekennzeichnet, daß die untere Platte der Form an ihrer Kontaktfläche mit der Mischung in der Form wenigstens einen Auskragungskern (46) umfaßt, welcher es ermöglicht, wenigstens eine Ausnehmung (18) in dem Baublock auszubilden.
  11. Vorrichtung nach einem der Ansprüche 4 bis 10, dadurch gekennzeichnet, daß die Presse obere und untere Platten (58, 60) umfaßt, zwischen welchen die Form angeordnet ist, und welche durch eine mechanische Übertragung verbunden sind, die dazu geeignet ist, in positiver Form einen minimalen Abstand zwischen den Platten der entsprechenden Presse und der gewünschten Höhe des Baublockes zu definieren und die Parallelität der Platten sicherzustellen.
  12. Vorrichtung nach einem der Ansprüche 4 bis 11, dadurch gekennzeichnet, daß die Einrichtung (70, 74, 90, 92) zum Instellunghalten der Platten der Form vom mechanischen und/oder hydraulischen Typ sind.
  13. Vorrichtung nach einem der Ansprüche 4 bis 12, dadurch gekennzeichnet, daß die Einrichtungen zum Instellunghalten der Platten der Form Stütz- (70, 72) oder Einrast(92) einrichtungen umfassen.
  14. Vorrichtung nach einem der Ansprüche 4 bis 13, dadurch gekennzeichnet, daß wenigstens eine der großen vertikalen Wände (30) der Form zur Aufnahme einer Verbundplatte des Baublockes bestimmt ist.
  15. Vorrichtung nach einem der Ansprüche 4 bis 14, dadurch gekennzeichnet, daß sie am Ausgang einer Vorrichtung zur Gipserzeugung installiert ist.
EP92911263A 1991-05-15 1992-05-14 Verfahren und vorrichtung zum herstellen von baublöcken aus einem hydraulischen bindemittel wie gips, einem inerten material wie sand und wasser Expired - Lifetime EP0619773B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9105870A FR2676386A1 (fr) 1991-05-15 1991-05-15 Procede et dispositif de fabrication de blocs de construction a partir d'un liant hydraulique tel que du platre, d'une charge inerte telle que du sable et d'eau.
FR9105870 1991-05-15
PCT/FR1992/000424 WO1992020502A1 (fr) 1991-05-15 1992-05-14 Procede et dispositif de fabrication de blocs de construction a partir d'un liant hydraulique tel que du platre, d'une charge inerte telle que du sable et d'eau

Publications (2)

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EP0619773A1 EP0619773A1 (de) 1994-10-19
EP0619773B1 true EP0619773B1 (de) 2000-03-15

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EP92911263A Expired - Lifetime EP0619773B1 (de) 1991-05-15 1992-05-14 Verfahren und vorrichtung zum herstellen von baublöcken aus einem hydraulischen bindemittel wie gips, einem inerten material wie sand und wasser

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US (1) US5507996A (de)
EP (1) EP0619773B1 (de)
JP (1) JPH06509290A (de)
AT (1) ATE190549T1 (de)
AU (1) AU670748B2 (de)
DE (1) DE69230802D1 (de)
FR (1) FR2676386A1 (de)
OA (1) OA09844A (de)
WO (1) WO1992020502A1 (de)

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US6176049B1 (en) 1997-12-08 2001-01-23 Step-By-Step Systems, Llc Concrete elevation assembly, hollow concrete block, and method of making
FR2786428B1 (fr) * 1998-11-26 2001-02-02 Jean Brouard Installation et moules de fabrication d'elements de construction a partir d'un melange de platre, d'une charge et d'eau
SE515607C2 (sv) * 1999-12-10 2001-09-10 Obducat Ab Anordning och metod vid tillverkning av strukturer
FR2816612A1 (fr) 2000-11-15 2002-05-17 Edouard Serras Fabrication d'elements de construction
FR2821839B1 (fr) 2001-03-08 2004-05-14 Edouard Serras Procede de fabrication d'elements de construction
US20050173837A1 (en) * 2001-03-08 2005-08-11 Edouard Serras Method for manufacturing building elements
FR2824772A1 (fr) * 2001-05-16 2002-11-22 Francois Baratin Procede et dispositif de fabrication d'elements de construction
CA2380114C (en) * 2002-04-04 2010-01-19 Obducat Aktiebolag Imprint method and device
FR2889991B1 (fr) * 2005-08-25 2007-11-09 Edouard Serras Procede de fabrication d'un element moule
DE102010020493A1 (de) * 2010-05-14 2011-11-17 Thomas Friedrich Verfahren und Vorrichtung zur Herstellung von halboffenen Betonteilen
JP6935578B2 (ja) 2019-03-07 2021-09-15 三菱パワー株式会社 コバルト基合金製造物

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Also Published As

Publication number Publication date
FR2676386A1 (fr) 1992-11-20
EP0619773A1 (de) 1994-10-19
OA09844A (fr) 1994-08-15
AU1908492A (en) 1992-12-30
WO1992020502A1 (fr) 1992-11-26
DE69230802D1 (de) 2000-04-20
AU670748B2 (en) 1996-08-01
JPH06509290A (ja) 1994-10-20
US5507996A (en) 1996-04-16
ATE190549T1 (de) 2000-04-15

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