EP0220076A2 - Vibrating table for making concrete products - Google Patents

Vibrating table for making concrete products Download PDF

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Publication number
EP0220076A2
EP0220076A2 EP86400453A EP86400453A EP0220076A2 EP 0220076 A2 EP0220076 A2 EP 0220076A2 EP 86400453 A EP86400453 A EP 86400453A EP 86400453 A EP86400453 A EP 86400453A EP 0220076 A2 EP0220076 A2 EP 0220076A2
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EP
European Patent Office
Prior art keywords
vibrating
mold
vibrating table
members
chassis
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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
EP86400453A
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German (de)
French (fr)
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EP0220076B1 (en
EP0220076A3 (en
Inventor
Yves Henri Van De Caveye
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Demler SA
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Demler SA
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Publication of EP0220076A3 publication Critical patent/EP0220076A3/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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
    • B28B1/0873—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould the mould being placed on vibrating or jolting supports, e.g. moulding tables

Definitions

  • the present invention relates to a vibrating table for the manufacture of concrete products.
  • This vibrating table is intended, in a conventional manner, to receive a mold on its flat upper surface and to cooperate with a molding machine comprising a feed hopper containing the concrete to be molded, a drawer movable alternately between a first position under the hopper feed and a second position above the mold to load concrete under the hopper, then transport the latter, in a determined quantity, into the mold, as well as a stirrer in the form of a grid placed in the drawer to evacuate the concrete and facilitate its penetration into the mold.
  • a molding machine comprising a feed hopper containing the concrete to be molded, a drawer movable alternately between a first position under the hopper feed and a second position above the mold to load concrete under the hopper, then transport the latter, in a determined quantity, into the mold, as well as a stirrer in the form of a grid placed in the drawer to evacuate the concrete and facilitate its penetration into the mold.
  • the vibration of these products is essential in particular for tamping the concrete in the mold.
  • the vibrating table is connected by suspension members, on the one hand, to a rigid main frame, and on the other hand, to main vibrating members.
  • the vibrating members To give complete satisfaction, in particular from the point of view of the working rhythm, of the wear of the engines consecutive to the very violent tremors to which they are subject, and the safety of operating personnel, the vibrating members must meet specific criteria.
  • the rear part of the mold sees all the elements of the agitator in the form of a grid, during the forward and backward movement of the drawer, and consequently receives the concrete for a longer period of time; this results in non-negligible uniformity defects in the finished products such as concrete blocks.
  • the object of the present invention is to propose a very simple device making it possible to compensate for this phenomenon of imbalance.
  • the invention relates to a vibrating table of the type described above, characterized in that it comprises, at its front part corresponding to the front part of the mold opposite to the feed hopper, additional setting members in vibration likely to compensate for the filling imbalance of the mold between its front part and its rear part.
  • the additional vibrating members comprise an auxiliary chassis articulated around an axis integral with the main chassis and driven in vibration by a vibrating motor operating continuously, as well as actuating members of the annex chassis capable of controlling its movement between a rest position, in which it is independent of the vibrating table, and a working position, in which it engages with the members suspension of the latter, to transmit its vibrations to its front part.
  • the device which is the subject of the invention therefore consists, in fact, of superimposing in an extremely simple and inexpensive manner, on the main vibrations, additional vibrations on the only front part of the mold receiving the concrete for a shorter duration.
  • the auxiliary chassis comprises a vibrating tablet placed below the upper surface of the table, parallel to the latter and carrying, at its rear end, a vertical plate extending downwards, the assembly thus formed being associated with a rigid linkage connected to the hinge pin secured to the main chassis.
  • the vibrating tablet therefore comes into action in the working position, at the bottom of the planar upper surface of the vibrating table, in order to exert a hammering action.
  • the actuating members of the auxiliary chassis are constituted, on the one hand, by at least one actuator, in particular a flexible plating actuator mounted on the lower part of the vertical plate and controlling the displacement from bottom to top and vice versa of the annex chassis, and on the other hand, by at least one jack, in particular a flexible balancing jack mounted on the front part of the annex chassis to constantly maintain the vibrating tablet in a horizontal position.
  • the device which is the subject of the invention is generally provided with two balancing jacks and two plating jacks.
  • the veneer cylinders are in the open air and the balancing cylinders are calibrated at a pressure such that the amplitudes of the vibrating table neither reach the upper surface of the table vibrating nor the structure of the machine; on the contrary, in the working position, the plating cylinders are under pressure which makes it possible to adjust the hammering of the tablet on the vibrating table.
  • the pressure exerted by the plating cylinder or cylinders can be adjusted to allow adjustment of the hammering force, and therefore of the compensation action.
  • the hammering force can be independently adjusted by adjusting the pressure of the flexible plating jacks as well as the duration of the latter.
  • This table is intended to receive on its upper surface 1, a mold, not shown, and to cooperate with a molding machine comprising a feed hopper containing concrete to be molded, a drawer movable alternately between a first position under the hopper d feed and a second position above the mold to load concrete under the hopper then transport the latter in a determined quantity in the mold, as well as a stirrer in the form of a grid placed in the drawer to evacuate the concrete and facilitate its penetration into the mold.
  • a molding machine comprising a feed hopper containing concrete to be molded, a drawer movable alternately between a first position under the hopper d feed and a second position above the mold to load concrete under the hopper then transport the latter in a determined quantity in the mold, as well as a stirrer in the form of a grid placed in the drawer to evacuate the concrete and facilitate its penetration into the mold.
  • FIGS. 1 to 3 These are bodies conventionally used in the field of concrete molding, which, for the sake of brevity, have not been shown in FIGS. 1 to 3.
  • the vibrating table comprises, in addition to its flat upper surface 1, a rigid frame 3 to which it is connected by means of suspension members 2, as well as main vibrating members constituted, according to the figures, by two electric motors 4 and 4 'located in parallel, each cooperating with a multi-directional vibrator 5, 5', these two elements 5, 5 'rotating in opposite directions and synchronized.
  • Each of the motors 4, 4 ' is connected to the vibrators 5, 5' by means of a transmission hose 6.
  • the only essential feature is that the vibrating assembly is perfectly balanced between its front, rear, right and left parts to provide the same compaction energy at each point of the mold.
  • the filling of the mold is consecutive to the advance movement of the drawer, not shown, according to the arrow A along the surface 1 of the table. This results in a filling imbalance between the front and rear parts of the mold, which can lead to non-homogeneity of the molded products obtained.
  • the invention proposes to associate with the main vibrating assembly described above, additional vibrating members consisting of an additional chassis 8 articulated around an axis 7 integral of the main chassis 3 and driven in vibration by a vibrating motor 9 of the conventional type that works continuously.
  • the auxiliary frame 8 is constituted by a vibrating tablet 10 arranged below the upper surface of the table 1 at the front part and parallel to the latter, as well as by a vertical plate 11 extending downwards fixed to the part rear 12 of the tablet 10.
  • the assembly constituted by the vibrating tablet 10 and the vertical plate 11 is associated with a rigid linkage 13 connected to the hinge pin 7 secured to the main chassis 3.
  • the auxiliary frame 8 is capable of moving in a vertical back-and-forth movement shown diagrammatically by the arrow B between a rest position shown in FIG. 2, in which it is completely independent of the vibrating table, that is to say that is to say that, in this position, the amplitude of the vibrations imposed on the tablet 10 by the vibrating motor 9 is insufficient for it to reach the surface 1 or the suspension members 2, and a working position shown in FIG. 1 , wherein the tablet 10 is capable of engaging with the suspension members 2 of the table 1 to transmit its vibrations to its front part.
  • This back-and-forth movement according to arrow B of the whole of the annex chassis 8 is controlled by two flexible plating jacks 14, 14 'mounted at the lower part 15 of the vertical plate 11, which are located at the free air in the rest position ( Figure 2) and under an adjustable pressure in the working position ( Figure 1) to allow the tablet 10 to superimpose on the main vibrations of the table 1, an adjustable hammering force.
  • the cladding cylinders 14, 14 ' are associated with balancing cylinders 16, 16' which are mounted on the front part of the auxiliary frame 8 to constantly maintain the vibrating table 10 in a horizontal position.

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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)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

a) Vibrating table for making concrete products. b) Table characterised in that it comprises, at its front part corresponding to the front part of the mould opposite the feed hopper, added vibration-initiating elements (8, 9, 14, 14', 16, 16') capable of compensating for the imbalance in the filling of the mould between its front portion and its rear portion. c) The invention applies to vibrating tables for making concrete products. <IMAGE>

Description

La présente invention se rapporte à une table vibrante pour la fabrication de produits en béton.The present invention relates to a vibrating table for the manufacture of concrete products.

Cette table vibrante est destinée, de manière classique, à recevoir un moule sur sa surface supérieure plane et à coopèrer avec une machine à mouler comportant une trémie d'alimentation contenant le béton à mouler, un tiroir mobile alternativement entre une première position sous la trémie d'alimentation et une seconde position au-­dessus du moule pour se charger en béton sous la trémie, puis transporter ce dernier, en quantité déterminée, dans le moule, ainsi qu'un agitateur sous forme de grille placé dans le tiroir pour évacuer le béton et faciliter sa péné­tration dans le moule.This vibrating table is intended, in a conventional manner, to receive a mold on its flat upper surface and to cooperate with a molding machine comprising a feed hopper containing the concrete to be molded, a drawer movable alternately between a first position under the hopper feed and a second position above the mold to load concrete under the hopper, then transport the latter, in a determined quantity, into the mold, as well as a stirrer in the form of a grid placed in the drawer to evacuate the concrete and facilitate its penetration into the mold.

Il s'agit des installations de type classique destinées à la fabrication d'objets en béton vibré, tels que des parpaings.These are installations of the conventional type intended for the manufacture of vibrated concrete objects, such as concrete blocks.

Le vibrage de ces produits est indispensable en particulier pour tasser le béton se trouvant dans le moule.The vibration of these products is essential in particular for tamping the concrete in the mold.

A cet effet, de manière classique, la table vibrante est reliée par des organes de suspension, d'une part, à un châssis principal rigide, et d'autre part, à des organes principaux de mise en vibration.To this end, conventionally, the vibrating table is connected by suspension members, on the one hand, to a rigid main frame, and on the other hand, to main vibrating members.

Pour donner entière satisfaction, notamment du point de vue du rythme de travail, de l'usure des moteurs consécutive aux secousses très violentes auxquelles ils sont soumis, et de la sécurité du personnel d'exploitation, les organes de mise en vibration doivent répondre à des cri­tères particuliers.To give complete satisfaction, in particular from the point of view of the working rhythm, of the wear of the engines consecutive to the very violent tremors to which they are subject, and the safety of operating personnel, the vibrating members must meet specific criteria.

On a déjà proposé de nombreux organes de ce type, parmi lesquels on peut noter ceux décrits dans les brevets n° 81 22 948, 82 11 308 et 83 15 555.Many organs of this type have already been proposed, including those described in patents Nos. 81 22 948, 82 11 308 and 83 15 555.

Il est, cependant, connu que toutes les machi­nes décrites ci-dessus ont toujours l'inconvénient de présenter un déséquilibre de remplissage du moule entre sa partie avant et sa partie arrière.It is, however, known that all the machines described above always have the disadvantage of having an imbalance in filling the mold between its front part and its rear part.

En effet, la partie arrière du moule voit défi­ler, lors du mouvement d'avance et de recul du tiroir, tous les éléments de l'agitateur en forme de grille, et reçoit, par suite, le béton pendant une durée plus longue ; il en résulte des défauts d'uniformité non négligeables des produits finis tels que des parpaings.In fact, the rear part of the mold sees all the elements of the agitator in the form of a grid, during the forward and backward movement of the drawer, and consequently receives the concrete for a longer period of time; this results in non-negligible uniformity defects in the finished products such as concrete blocks.

La présente invention a pour objet de proposer un dispositif très simple permettant de compenser ce phéno­mène de déséquilibre.The object of the present invention is to propose a very simple device making it possible to compensate for this phenomenon of imbalance.

A cet effet, l'invention concerne une table vibrante du type décrit ci-dessus, caractérisée en ce qu'elle comporte, à sa partie avant correspondant à la partie avant du moule opposée à la trémie d'alimentation, des organes annexes de mise en vibration susceptibles de compenser le déséquilibre de remplissage du moule entre sa partie avant et sa partie arrière.To this end, the invention relates to a vibrating table of the type described above, characterized in that it comprises, at its front part corresponding to the front part of the mold opposite to the feed hopper, additional setting members in vibration likely to compensate for the filling imbalance of the mold between its front part and its rear part.

Selon une autre caractéristique de l'invention, les organes annexes de mise en vibration comportent un châssis annexe articulé autour d'un axe solidaire du châs­sis principal et entraîné en vibration par un moteur vibrant fonctionnant en permanence, ainsi que des organes de mise en action du châssis annexe susceptibles de commander son déplacement entre une position de repos, dans laquelle il est indépendant de la table vibrante, et une position de travail, dans laquelle il vient en prise avec les organes de suspension de cette dernière, pour transmettre ses vi­brations à sa partie avant.According to another characteristic of the invention, the additional vibrating members comprise an auxiliary chassis articulated around an axis integral with the main chassis and driven in vibration by a vibrating motor operating continuously, as well as actuating members of the annex chassis capable of controlling its movement between a rest position, in which it is independent of the vibrating table, and a working position, in which it engages with the members suspension of the latter, to transmit its vibrations to its front part.

Le dispositif objet de l'invention consiste donc, en fait, à superposer de façon extrêmement simple et peu onéreuse, aux vibrations principales, des vibrations annexes sur la seule partie avant du moule recevant le béton pendant une durée plus courte.The device which is the subject of the invention therefore consists, in fact, of superimposing in an extremely simple and inexpensive manner, on the main vibrations, additional vibrations on the only front part of the mold receiving the concrete for a shorter duration.

Selon une autre caractéristique de l'invention, le châssis annexe comporte une tablette vibrante disposée au-dessous de la surface supérieure de la table, parallèle­ment à cette dernière et portant, à son extrémité arrière, une plaque verticale s'étendant vers le bas, l'ensemble ainsi constitué étant associé à une tringlerie rigide re­liée à l'axe d'articulation solidaire du châssis principal.According to another characteristic of the invention, the auxiliary chassis comprises a vibrating tablet placed below the upper surface of the table, parallel to the latter and carrying, at its rear end, a vertical plate extending downwards, the assembly thus formed being associated with a rigid linkage connected to the hinge pin secured to the main chassis.

La tablette vibrante vient donc en action en po­sition de travail, à la partie inférieure de la surface supérieure plane de la table vibrante, pour y exercer une action de martelage.The vibrating tablet therefore comes into action in the working position, at the bottom of the planar upper surface of the vibrating table, in order to exert a hammering action.

Selon une autre caractéristique de l'invention, les organes de mise en action du châssis annexe sont cons­titués, d'une part, par au moins un vérin, notamment un vérin souple de placage monté à la partie inférieure de la plaque verticale et commandant le déplacement de bas en haut et réciproquement du châssis annexe, et d'autre part, par au moins un vérin, notamment un vérin souple déquili­brage monté à la partie avant du châssis annexe pour main­tenir constamment la tablette vibrante en position horizon­tale.According to another characteristic of the invention, the actuating members of the auxiliary chassis are constituted, on the one hand, by at least one actuator, in particular a flexible plating actuator mounted on the lower part of the vertical plate and controlling the displacement from bottom to top and vice versa of the annex chassis, and on the other hand, by at least one jack, in particular a flexible balancing jack mounted on the front part of the annex chassis to constantly maintain the vibrating tablet in a horizontal position.

Pour des raisons d'équilibrage, le dispositif objet de l'invention est généralement muni de deux vérins d'équilibrage et de deux vérins de placage.For balancing reasons, the device which is the subject of the invention is generally provided with two balancing jacks and two plating jacks.

En position de repos, les vérins de placage sont à l'air libre et les vérins d'équilibrage sont tarés à une pression telle que les amplitudes de la tablette vibrante n'atteignent ni la surface supérieure de la table vibrante ni la structure de la machine ; au contraire, en position de travail, les vérins de placage sont sous une pression qui permet de régler le martelage de la tablette sur la table vibrante.In the rest position, the veneer cylinders are in the open air and the balancing cylinders are calibrated at a pressure such that the amplitudes of the vibrating table neither reach the upper surface of the table vibrating nor the structure of the machine; on the contrary, in the working position, the plating cylinders are under pressure which makes it possible to adjust the hammering of the tablet on the vibrating table.

Selon une autre caractéristique de l'invention, la pression exercée par le ou les vérins de placage peut être réglée pour permettre un réglage de la force de mar­telage, et par suite, de l'action de compensation.According to another characteristic of the invention, the pressure exerted by the plating cylinder or cylinders can be adjusted to allow adjustment of the hammering force, and therefore of the compensation action.

Il s'agit donc là d'un dispositif extrêmement simple susceptible de s'appliquer à tous les types de moule, permettant de ne rien déséquilibrer de la vibration principale et d'un réglage extrêmement simple et néanmoins précis.It is therefore an extremely simple device capable of being applied to all types of mold, making it possible to unbalance nothing of the main vibration and an extremely simple and nevertheless precise adjustment.

Ce réglage est, en fait, triple étant donné que l'on peut régler indépendamment la force vibrante, la force du martelage en réglant la pression des vérins sou­ples de placage ainsi que la durée de ce dernier.This adjustment is, in fact, threefold since the vibrating force, the hammering force can be independently adjusted by adjusting the pressure of the flexible plating jacks as well as the duration of the latter.

Les caractéristiques de la table vibrante qui fait l'objet de l'invention seront décrites plus en détail en se référant aux dessins annexés, dans lesquels :

  • - les figures 1 et 2 sont des coupes schémati­ques d'une table vibrante selon l'invention respectivement en position de travail et en position de repos, tandis que
  • - la figure 3 est une vue de dessus de cette table vibrante.
The characteristics of the vibrating table which is the subject of the invention will be described in more detail with reference to the accompanying drawings, in which:
  • FIGS. 1 and 2 are schematic sections of a vibrating table according to the invention respectively in the working position and in the rest position, while
  • - Figure 3 is a top view of this vibrating table.

Cette table est destinée à recevoir sur sa sur­face supérieure 1, un moule, non représenté, et à coopèrer avec une machine à mouler comportant une trémie d'alimen­tation contenant du béton à mouler, un tiroir mobile alter­nativement entre une première position sous la trémie d'alimentation et une seconde position au-dessus du moule pour se charger en béton sous la trémie puis transporter ce dernier en quantité déterminée dans le moule, ainsi qu'un agitateur sous forme de grille placé dans le tiroir pour évacuer le béton et faciliter sa pénétration dans le moule.This table is intended to receive on its upper surface 1, a mold, not shown, and to cooperate with a molding machine comprising a feed hopper containing concrete to be molded, a drawer movable alternately between a first position under the hopper d feed and a second position above the mold to load concrete under the hopper then transport the latter in a determined quantity in the mold, as well as a stirrer in the form of a grid placed in the drawer to evacuate the concrete and facilitate its penetration into the mold.

Il s'agit là d'organes utilisés classiquement dans le domaine du moulage du béton, qui, dans un but de brièveté, n'ont pas été représentés sur les figures 1 à 3.These are bodies conventionally used in the field of concrete molding, which, for the sake of brevity, have not been shown in FIGS. 1 to 3.

Selon ces figures, la table vibrante comporte, outre sa surface supérieure plane 1, un châssis rigide 3 auquel elle est reliée au moyen d'organes de suspension 2, ainsi que des organes principaux de mise en vibration constitués, selon les figures, par deux moteurs électriques 4 et 4' situés en parallèle, coopèrant chacun avec un vibrateur multi-directionnel 5, 5', ces deux éléments 5, 5' tournant en sens opposé et synchronisé. Chacun des moteurs 4, 4' est relié aux vibrateurs 5, 5' au moyen d'un flexible de transmission 6.According to these figures, the vibrating table comprises, in addition to its flat upper surface 1, a rigid frame 3 to which it is connected by means of suspension members 2, as well as main vibrating members constituted, according to the figures, by two electric motors 4 and 4 'located in parallel, each cooperating with a multi-directional vibrator 5, 5', these two elements 5, 5 'rotating in opposite directions and synchronized. Each of the motors 4, 4 'is connected to the vibrators 5, 5' by means of a transmission hose 6.

Bien entendu, ces organes principaux de mise en vibration ne sont cités qu'à titre d'exemple, et l'on pourraît, par exemple, remplacer les deux ensembles vibra­teurs 5, 5' - moteurs 4, 4' par deux moteurs vibrants sans pour cela sortir du cadre de l'invention.Of course, these main vibrating members are only given as an example, and we could, for example, replace the two vibrator assemblies 5, 5 '- motors 4, 4' with two vibrating motors without for this to depart from the scope of the invention.

La seule caractéristique indispensable est que l'ensemble vibrant soit parfaitement équilibré entre ses parties avant, arrière, droite et gauche pour apporter la même énergie de compactage à chaque point du moule.The only essential feature is that the vibrating assembly is perfectly balanced between its front, rear, right and left parts to provide the same compaction energy at each point of the mold.

Comme déjà indiqué, le remplissage du moule est consécutif au mouvement d'avance du tiroir, non repré­senté, selon la flèche A le long de la surface 1 de la table. Il s'ensuit un déséquilibre de remplissage entre les parties avant et arrière du moule pouvant entraîner une non-homogénéité des produits moulés obtenus.As already indicated, the filling of the mold is consecutive to the advance movement of the drawer, not shown, according to the arrow A along the surface 1 of the table. This results in a filling imbalance between the front and rear parts of the mold, which can lead to non-homogeneity of the molded products obtained.

Pour remédier à cet inconvénient, l'invention propose d'associer à l'ensemble principal de mise en vibra­tion décrit ci-dessus, des organes annexes de mise en vibration se composant d'un châssis annexe 8 articulé au­tour d'un axe 7 solidaire du châssis principal 3 et entraî­né en vibration par un moteur vibrant 9 de type classique qui fonctionne en permanence.To overcome this drawback, the invention proposes to associate with the main vibrating assembly described above, additional vibrating members consisting of an additional chassis 8 articulated around an axis 7 integral of the main chassis 3 and driven in vibration by a vibrating motor 9 of the conventional type that works continuously.

Le châssis annexe 8 est constitué par une ta­blette vibrante 10 disposée au-dessous de la surface supérieure de la table 1 à la partie avant et parallèlement à cette dernière, ainsi que par une plaque verticale 11 s'étendant vers le bas fixée à la partie arrière 12 de la tablette 10.The auxiliary frame 8 is constituted by a vibrating tablet 10 arranged below the upper surface of the table 1 at the front part and parallel to the latter, as well as by a vertical plate 11 extending downwards fixed to the part rear 12 of the tablet 10.

L'ensemble constitué par la tablette vibrante 10 et la plaque verticale 11 est associé à une tringlerie rigide 13 reliée à l'axe d'articulation 7 solidaire du châssis principal 3.The assembly constituted by the vibrating tablet 10 and the vertical plate 11 is associated with a rigid linkage 13 connected to the hinge pin 7 secured to the main chassis 3.

Le châssis annexe 8 est susceptible de se dé­placer selon un mouvement vertical de va-et-vient schéma­tisé par la flèche B entre une position de repos représentée sur la figure 2, dans laquelle il est totalement indépen­dant de la table vibrante, c'est-à-dire que, dans cette position, l'amplitude des vibrations imposées à la tablette 10 par le moteur vibrant 9 est insuffisante pour que celle­ci atteigne la surface 1 ou les organes de suspension 2, et une position de travail représentée sur la figure 1, dans laquelle la tablette 10 est susceptible de venir en prise avec les organes de suspension 2 de la table 1 pour transmettre ses vibrations à sa partie avant.The auxiliary frame 8 is capable of moving in a vertical back-and-forth movement shown diagrammatically by the arrow B between a rest position shown in FIG. 2, in which it is completely independent of the vibrating table, that is to say that is to say that, in this position, the amplitude of the vibrations imposed on the tablet 10 by the vibrating motor 9 is insufficient for it to reach the surface 1 or the suspension members 2, and a working position shown in FIG. 1 , wherein the tablet 10 is capable of engaging with the suspension members 2 of the table 1 to transmit its vibrations to its front part.

Ce mouvement de va-et-vient selon la flèche B de l'ensemble du châssis annexe 8 est commandé par deux vérins souples de placage 14, 14' montés à la partie inférieure 15 de la plaque verticale 11, qui se trouvent à l'air libre en position de repos (figure 2) et sous une pression réglable en position de travail (figure 1) pour permettre à la tablette 10 de superposer aux vibrations principales de la table 1, une force de martelage réglable.This back-and-forth movement according to arrow B of the whole of the annex chassis 8 is controlled by two flexible plating jacks 14, 14 'mounted at the lower part 15 of the vertical plate 11, which are located at the free air in the rest position (Figure 2) and under an adjustable pressure in the working position (Figure 1) to allow the tablet 10 to superimpose on the main vibrations of the table 1, an adjustable hammering force.

Les vérins de placage 14, 14' sont associés à des vérins d'équilibrage 16, 16' qui sont montés à la partie avant du châssis annexe 8 pour maintenir constamment la tablette vibrante 10 en position horizontale.The cladding cylinders 14, 14 'are associated with balancing cylinders 16, 16' which are mounted on the front part of the auxiliary frame 8 to constantly maintain the vibrating table 10 in a horizontal position.

Claims (5)

1°) Table vibrante pour la fabrication de pro­duits en béton destinée à recevoir un moule sur sa surface supérieure plane et à coopèrer avec une machine à mouler comportant une trémie d'alimentation contenant le béton à mouler, un tiroir mobile alternativement entre une première position sous la trémie d'alimentation et une seconde posi­tion au-dessus du moule pour se charger en béton sous la trémie, puis transporter ce dernier en quantité déterminée dans le moule, ainsi qu'un agitateur sous forme de grille placé dans le tiroir pour évacuer le béton et faciliter sa pénétration dans le moule, table vibrante reliée par des organes de suspension d'une part, à un châssis principal rigide, et d'autre part, à des organes principaux de mise en vibration, caractérisée en ce qu'elle comporte, à sa partie avant correspondant à la partie avant du moule op­posée à la trémie d'alimentation, des organes annexes de mise en vibration (8, 9, 14, 14', 16, 16') susceptibles de compenser le déséquilibre de remplissage du moule entre sa partie avant et sa partie arrière.1) vibrating table for the production of concrete products intended to receive a mold on its flat upper surface and to cooperate with a molding machine comprising a feed hopper containing the concrete to be molded, a drawer movable alternately between a first position under the feed hopper and a second position above the mold to load concrete under the hopper, then transport the latter in a determined quantity in the mold, as well as a stirrer in the form of a grid placed in the drawer to evacuate concrete and facilitate its penetration into the mold, vibrating table connected by suspension members on the one hand, to a rigid main frame, and on the other hand, to main vibrating members, characterized in that it comprises, at its front part corresponding to the front part of the mold opposite the feed hopper, additional vibrating members (8, 9, 14, 14 ', 16, 16') capable of compensating for the imbalance d filling the mold between its front part and its rear part. 2°) Table vibrante selon la revendication 1, caractérisée en ce que les organes annexes de mise en vibration comportent un châssis annexe (8) articulé autour d'un axe (7) solidaire du châssis principal (3) et entraî­né en vibration par un moteur vibrant (9) fonctionnant en permanence, ainsi que des organes (14, 14', 16, 16') de mise en action du châssis annexe (8) susceptibles de com­mander son déplacement entre une position de repos dans laquelle il est indépendant de la table vibrante (1), et une position de travail dans laquelle il vient en prise avec les organes de suspension (2) de cette dernière pour transmettre ses vibrations à sa partie avant.2) vibrating table according to claim 1, characterized in that the additional vibrating members comprise an additional chassis (8) articulated around an axis (7) integral with the main chassis (3) and driven in vibration by a vibrating motor (9) operating continuously, as well as members (14, 14 ', 16, 16') for actuating the auxiliary chassis (8) capable of controlling its movement between a rest position in which it is independent of the vibrating table (1), and a working position in which it engages with the suspension members (2) of the latter to transmit its vibrations to its front part. 3°) Table vibrante selon l'une quelconque des revendications 1 et 2, caractérisée en ce que le châssis annexe (8) comporte une tablette vibrante (10) disposée au-­ dessous de la surface supérieure (1) de la table paral­lèlement à cette dernière et portant, à son extrémité ar­rière (12), une plaque verticale (11) s'étendant vers le bas, l'ensemble (10, 11) ainsi constitué étant associé à une tringlerie rigide (13) reliée à l'axe d'articulation (7) solidaire du châssis principal (3).3) vibrating table according to any one of claims 1 and 2, characterized in that the auxiliary frame (8) comprises a vibrating tablet (10) disposed au- below the upper surface (1) of the table parallel to the latter and carrying, at its rear end (12), a vertical plate (11) extending downwards, the assembly (10, 11) thus constituted being associated with a rigid linkage (13) connected to the hinge pin (7) integral with the main chassis (3). 4°) Table vibrante selon l'une quelconque des revendications 1 à 3, caractérisée en ce que les organes de mise en action du châssis annexe (8) sont constitués, d'une part, par au moins un vérin, notamment un vérin sou­ple de placage (14, 14') monté à la partie inférieure (15) de la plaque verticale (11) et commandant le déplacement de bas en haut et réciproquement, du châssis annexe (8) et d'autre part, par au moins un vérin d'équilibrage (16, 16') monté à la partie avant du châssis annexe (8) pour maintenir contamment la tablette vibrante (10) en position horizontale.4 °) vibrating table according to any one of claims 1 to 3, characterized in that the actuating members of the annex chassis (8) consist, on the one hand, by at least one jack, in particular a flexible jack cladding (14, 14 ') mounted to the lower part (15) of the vertical plate (11) and controlling the movement from bottom to top and vice versa, of the auxiliary frame (8) and on the other hand, by at least one balancing cylinder (16, 16 ') mounted on the front part of the auxiliary chassis (8) to keep the vibrating table (10) constantly in the horizontal position. 5°) Table vibrante selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la pression exercée par le ou les vérins de placage (14, 14') est réglable.5 °) vibrating table according to any one of claims 1 to 4, characterized in that the pressure exerted by the veneer or cylinders (14, 14 ') is adjustable.
EP19860400453 1985-03-29 1986-03-04 Vibrating table for making concrete products Expired - Lifetime EP0220076B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8504797A FR2579510B1 (en) 1985-03-29 1985-03-29 VIBRATING TABLE FOR THE MANUFACTURE OF CONCRETE PRODUCTS
FR8504797 1985-03-29

Publications (3)

Publication Number Publication Date
EP0220076A2 true EP0220076A2 (en) 1987-04-29
EP0220076A3 EP0220076A3 (en) 1989-01-04
EP0220076B1 EP0220076B1 (en) 1991-11-27

Family

ID=9317753

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860400453 Expired - Lifetime EP0220076B1 (en) 1985-03-29 1986-03-04 Vibrating table for making concrete products

Country Status (3)

Country Link
EP (1) EP0220076B1 (en)
DE (1) DE3682650D1 (en)
FR (1) FR2579510B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5594013A (en) * 1992-01-13 1997-01-14 Ethical Pharmaceuticals Limited Pharmaceutical compositions containing nifedipine and process for the preparation thereof

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE395580A (en) *
GB190918242A (en) * 1909-08-07 1909-12-31 Frank George Symmonds Price Improvements in Apparatus for Mixing and Consolidating Concrete and like Materials.
US1867144A (en) * 1930-01-24 1932-07-12 Gelbman Louis Concrete molding machine
FR1034200A (en) * 1951-03-20 1953-07-20 Traverses En Beton Arme Sa Vibrating device with adjustable frequency while walking
FR1207736A (en) * 1957-07-10 1960-02-18 Process for vibrating concrete or similar materials, as well as device for carrying out this process
GB896643A (en) * 1959-11-09 1962-05-16 Stanton Ironworks Co Ltd Improvements in and relating to the casting of concrete or like bodies
DE1255554B (en) * 1963-10-16 1967-11-30 Dorst Keramikmasch Method for pressing wall, floor or mosaic panels with top and bottom surfaces plane-parallel to one another made of powdery, in particular ceramic material, and a press for carrying out the method
GB1158221A (en) * 1966-04-05 1969-07-16 Schlosser & Co Gmbh Device for Charging Moulds.
DE2313752A1 (en) * 1973-03-20 1974-10-03 Ernst Wild PROCESS FOR THE PRODUCTION OF MARBLE BLOCKS

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE395580A (en) *
GB190918242A (en) * 1909-08-07 1909-12-31 Frank George Symmonds Price Improvements in Apparatus for Mixing and Consolidating Concrete and like Materials.
US1867144A (en) * 1930-01-24 1932-07-12 Gelbman Louis Concrete molding machine
FR1034200A (en) * 1951-03-20 1953-07-20 Traverses En Beton Arme Sa Vibrating device with adjustable frequency while walking
FR1207736A (en) * 1957-07-10 1960-02-18 Process for vibrating concrete or similar materials, as well as device for carrying out this process
GB896643A (en) * 1959-11-09 1962-05-16 Stanton Ironworks Co Ltd Improvements in and relating to the casting of concrete or like bodies
DE1255554B (en) * 1963-10-16 1967-11-30 Dorst Keramikmasch Method for pressing wall, floor or mosaic panels with top and bottom surfaces plane-parallel to one another made of powdery, in particular ceramic material, and a press for carrying out the method
GB1158221A (en) * 1966-04-05 1969-07-16 Schlosser & Co Gmbh Device for Charging Moulds.
DE2313752A1 (en) * 1973-03-20 1974-10-03 Ernst Wild PROCESS FOR THE PRODUCTION OF MARBLE BLOCKS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5594013A (en) * 1992-01-13 1997-01-14 Ethical Pharmaceuticals Limited Pharmaceutical compositions containing nifedipine and process for the preparation thereof

Also Published As

Publication number Publication date
DE3682650D1 (en) 1992-01-09
EP0220076B1 (en) 1991-11-27
EP0220076A3 (en) 1989-01-04
FR2579510B1 (en) 1989-12-15
FR2579510A1 (en) 1986-10-03

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