EP3313634A1 - Device for real-time monitoring of the operation of a vibrating press producing concrete products for immediate mold release, and facility including such a device - Google Patents

Device for real-time monitoring of the operation of a vibrating press producing concrete products for immediate mold release, and facility including such a device

Info

Publication number
EP3313634A1
EP3313634A1 EP16750888.6A EP16750888A EP3313634A1 EP 3313634 A1 EP3313634 A1 EP 3313634A1 EP 16750888 A EP16750888 A EP 16750888A EP 3313634 A1 EP3313634 A1 EP 3313634A1
Authority
EP
European Patent Office
Prior art keywords
board
mold
concrete
control device
concrete products
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
EP16750888.6A
Other languages
German (de)
French (fr)
Other versions
EP3313634C0 (en
EP3313634B1 (en
Inventor
Kais Mehiri
Nicolas TEMPETE
Sylvain Dehaudt
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.)
Centre D'etudes Et De Recherches De L'industrie Du Beton
Centre dEtudes et de Recherche de lIndustrie du Beton CERIB
Original Assignee
Centre D'etudes Et De Recherches De L'industrie Du Beton
Centre dEtudes et de Recherche de lIndustrie du Beton CERIB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Centre D'etudes Et De Recherches De L'industrie Du Beton, Centre dEtudes et de Recherche de lIndustrie du Beton CERIB filed Critical Centre D'etudes Et De Recherches De L'industrie Du Beton
Priority to HRP20230785TT priority Critical patent/HRP20230785T1/en
Publication of EP3313634A1 publication Critical patent/EP3313634A1/en
Application granted granted Critical
Publication of EP3313634C0 publication Critical patent/EP3313634C0/en
Publication of EP3313634B1 publication Critical patent/EP3313634B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts
    • B28B7/0055—Mould pallets; Mould panels
    • 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
    • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
    • B28B15/005—Machines using pallets co-operating with a bottomless mould; Feeding or discharging means for pallets
    • 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
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/005—Control arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
    • B30B11/022—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space whereby the material is subjected to vibrations

Definitions

  • the invention relates to the field of the production of concrete products immediate release, such as blocks, curbs, between you, cobblestones and the like.
  • the invention relates more particularly to a device for controlling the operation of a vibrating press during the production process of such products and an installation comprising such a control device.
  • the vibrating presses comprise a vibrating table supported by a vibrating device provided with elastic suspensions, a mold case movable vertically above the vibrating table, a compaction pylon vertically movable above the mold box and inside it and a drawer allowing pouring concrete from a hopper into the mold box.
  • the deficiencies of the vibrating presses can be at the origin of defects on concrete products with immediate demolding.
  • a defect of the pestle, a wear of the elastic suspensions of the vibrating table, a defect of inclination of the box of the mold, a heterogeneity of the movements of vibrations during the filling of the mold or the compaction of concrete are for example as many deficiencies being able cause defects in concrete blocks or the like.
  • the checks carried out are limited to controlling the vibration. They include controls on the repeatability of the cycle and the quality of the vibration.
  • the means for controlling the parameters of the vibrating press during a production cycle therefore remain insufficient or non-existent for certain parameters.
  • a lack of horizontality found on the products the origin of which is a wear of the agitator of the drawer (part aiding the pouring of the concrete in the mold box), it will not be detected nor by vibration measurements (accelerometers) or motion sensors.
  • the origin of the defect is a misalignment between the abutments of the sliders of the mold (and / or the pestle), no vibration fault will be noted.
  • the invention aims to remedy these problems by providing a control device to diagnose simply and quickly a vibrating press during the production process of concrete products, without stopping the latter and accurately detect and the possible deficiencies of the latter.
  • the invention provides a device for controlling the operation of a vibrating press during the production process of concrete products with immediate demolding, said vibrating press comprising a mold defining the least one cell in which the concrete to be compacted is poured, said control device being remarkable in that it comprises a board intended to be arranged under the mold, said board being provided with means for measuring the vibration frequency, amplitude and / or acceleration of movement, and / or force exerted on said board during the production of the concrete products.
  • measuring means placed directly on an element involved in the production process, in this case the board, to control the vibrating press in real time, ie during the production of concrete products, and to diagnose, if necessary, the dysfunctions of the latter.
  • the presence of measuring means on an element involved in the production process makes it possible to visualize phenomena hitherto not visualized with the control devices of the prior art such as the quality (weight and homogeneity of distribution) of the filling of the concrete in the mold.
  • the measuring means are arranged to define at least three measurement points on the board. This ensures sufficient control of the operation of the vibrating press.
  • the measuring means are integrated in the board.
  • the measuring means are placed within the board itself. To do this, they are arranged either in cavities provided for this purpose, or directly embedded in the material in which the board is made.
  • the measuring means are dynamic force sensors.
  • Other measuring means known per se accelerelerometers, etc. can of course be implemented without departing from the scope of the invention.
  • the board comprises means for communicating the data recorded by said measuring means to an acquisition unit and / or data processing. It can be expected that the unit is embedded on the board or that it is independent of the board.
  • the board includes a storage module of the data recorded by the measuring means.
  • the control device can provide an image at the instant (t) of an expected operating cycle of the machine, said image constituting a referential to which reference is made to deduce the origin of the defect as well as the product quality.
  • the invention also relates to an installation for the production of immediate mold release concrete products comprising at least one vibrating press comprising a mold defining at least one cell in which the concrete to be compacted is poured, a compacting pylon of the concrete disposed above the mold and a vibrating table disposed under the mold, and a control device as described above, said control device for controlling production parameters of the vibrating press during the manufacturing process of concrete products when the board is in position on the vibrating table.
  • the installation thus equipped with a control device according to the invention it is possible to control quickly, and without interruption of the production cycle, the state of several components of it.
  • the device comprises means for recording the production parameters recorded during the manufacturing process of concrete products.
  • the board is a transport board of pressed and compacted concrete products.
  • FIG. 1 shows a schematic view of an installation for the production of products in concrete comprising a control device according to the invention
  • FIG. 2 represents a schematic view in perspective and in transparency of the control device of FIG. 1 according to a first embodiment configuration
  • FIG. 3 shows a sectional view along the axis III-III of the control device of Figure 2;
  • FIG. 4 represents a schematic view from above of the control device of FIG. 2;
  • FIG. 5 represents a schematic view from above of a control device according to another embodiment configuration
  • FIG. 6 shows a production cycle of concrete products obtained with a control device of FIG. 2.
  • an installation 1 comprising a vibrating press associated with a transfer line 8 of press boards for the production of concrete products immediate mold release.
  • the vibrating press comprises two main stations: a concrete feed station 2 and a vibration and compacting station 3.
  • the concrete feed station 2 comprises a hopper 20 disposed above the drawer 21 adapted to move horizontally between a concrete loading position from the hopper to a concrete pouring position in a mold 30 of the press.
  • the opening of the hopper 20 allowing the flow of concrete on the drawer 21, is controlled by a jack 22 which actuates the tilting of the helmet 23 of the hopper 20 between an open position to a closed position.
  • the vibration and compaction station 3 comprises a mold 30 defining cells in which the concrete to be compacted is discharged from the drawer 21, a compacting pylon 31 of the concrete disposed above the mold 30 and a vibrating table 32 placed under the mold.
  • the mold 30 and compacting pestle 31 are respectively vertically movable.
  • a board 4 is placed on the vibrating table 32, the mold 30 being positioned above the board.
  • the vibrating press comprises an output (not shown) of the transfer line 8 which discharges the product or products) finished "concrete (s)".
  • finished product is meant the demolded product.
  • the "finished" product is transferred to the board on which it has been molded via, for example, an extension (not shown) of the conveyor belt 80.
  • the installation 1 comprises a device 10 for controlling the operation of the vibrating press. As will be understood later, the control is performed during the production cycle of the products, a board being in position on the vibrating table.
  • the control device 10 comprises the board 4 which, for this purpose, is instrumentalised. More particularly, the board 4 is provided with means 5 for measuring the vibration frequency, the amplitude and / or the acceleration of movement and / or the force exerted on said board during the production of the concrete products.
  • the measuring means 5 are advantageously dynamic force sensors.
  • the board 4 comprises five sensors 50 to 50E distributed regularly within it. More particularly, four of the sensors 50A, 50B, 50D and 50E are disposed at the periphery of the board, at the corners thereof, the fifth 50C being placed centrally.
  • the sensors 50A, 50B, 50D and 50E are symmetrical with respect to the median planes. The advantage of a symmetrical and regular distribution is to make it possible to check the flatness of the board 4 on which the mold rests and thus to establish the possible cause for which the concrete product (s) obtained (s) would not be plan or present (in) t differences in height.
  • the sensors 50A to 50E are connected by wire to a connector 6 constituting a data storage module identified by the sensors 50A to 50E.
  • the connector 6 is connected to each sensor 50 A to 50E by internal channels 7 allowing the passage of son. It may also be provided that the son connecting the connector to the sensors pass in grooves provided for this purpose on the lower face 40 of the board 4.
  • the control device 10 further comprises an acquisition unit and / or data processing (not shown) intended to be connected to the connector by wired or non-wired.
  • the data recorded by the sensors 5 are thus transmitted via the connector 6 to the acquisition and / or data processing unit.
  • the acquisition and / or data processing unit is distinct and independent of the board 4. According to another particularly advantageous embodiment, it can also be provided that the unit of acquisition and / or data processing is directly embedded on the board 4.
  • FIG. 5 illustrates another embodiment in which the board has eight sensors 50A to 50H. As in the previous example, the sensors 50A to 50H are distributed so as to define a regular coverage of the board 4.
  • the number of sensors 50A to 50H is of course not limited to the number illustrated in the embodiments shown in Figures 4 and 5. However, to ensure effective control of the operation of the vibrating press, the boards 4 will include at least three sensors (or any other means of measurement).
  • the thus instrumentalized board allows, associated with a processing unit and / or acquisition to record data relating to the components of the vibrating press involved in the production of concrete products (mold, vibrating table, compacting pestle) . It makes it possible, for example, to establish the existence of horizontal defect of the compacting mold or pestle, to note a heterogeneity in the weight of the concrete when it is poured into the mold as well as for the application of vibrations to the mold. during the filling of the mold and / or the compaction of the concrete.
  • FIG. 6 shows data taken by an instrumentalised plate 4 of the type illustrated in FIG. 2 during a concrete product manufacturing cycle for which it has been found, in release of press, a heterogeneity in the heights of products.
  • the graph clearly shows the presence of a mold positioning defect. This defect is confirmed when clamping the mold on the board 4.
  • the drawer 21 is in position and stirring begins.
  • opposite responses are found between the left-hand sensors 50A and 50B and the right-hand sensors 50D and 50E, indicating a filling defect between the two sides of the board, the cells on the left of the mold being more filled than the right cells of the mold. Thanks to the data recorded by the instrumentalized plate 4 during the manufacturing cycle, the origin of the product height defect can thus be determined (mold horizontality defect) immediately, without stopping the installation.
  • the use of the instrumentalized board 4 is not limited to the installation 1 illustrated in Figure 1, it can be implemented with any other type of vibrating press for the production of concrete products demoulding immediate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Automation & Control Theory (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)

Abstract

The invention relates to a device (10) for monitoring the operation of a vibrating press during the process for producing concrete products for immediate mold release. Said vibrating press includes a mold (30) defining at least one cavity in which the concrete to be compacted is poured. Said monitoring device (10) is characterized in that it comprises a board (4) to be placed under the mold (30). Said board is provided with means (5) for measuring the vibration frequency, the motion amplitude and/or acceleration, and/or the force exerted on said board during production of the concrete products. The invention also relates to a facility for producing concrete for immediate mold release including such a monitoring device.

Description

DISPOSITIF DE CONTROLE EN TEMPS REEL DU FONCTIONNEMENT D'UNE PRESSE VIBRANTE PRODUISANT DES PRODUITS EN BETON A DEMOULAGE IMMEDIAT ET INSTALLATION COMPRENANT UN TEL DISPOSITIF  DEVICE FOR REAL-TIME CONTROL OF THE OPERATION OF A VIBRANT PRESS PRODUCING IMMEDIATE DEMOLDING CONCRETE PRODUCTS AND INSTALLATION COMPRISING SUCH A DEVICE
DOMAINE TECHNIQUE DE L'INVENTION TECHNICAL FIELD OF THE INVENTION
[001] L'invention concerne le domaine de la production de produits en béton à démoulage immédiat, tels que des blocs, bordures, entre vous, pavés et similaires. [001] The invention relates to the field of the production of concrete products immediate release, such as blocks, curbs, between you, cobblestones and the like.
[002] L'invention concerne plus particulièrement un dispositif de contrôle du fonctionnement d'une presse vibrante au cours du processus de production de tels produits ainsi qu'une installation comprenant un tel dispositif de contrôle. The invention relates more particularly to a device for controlling the operation of a vibrating press during the production process of such products and an installation comprising such a control device.
ETAT DE LA TECHNIQUE STATE OF THE ART
[003] Il est connu de produire des produits en béton à démoulage immédiat sur des planches au moyen de presses vibrantes. De manière générale, les presses vibrantes comprennent une table vibrante supportée par un dispositif vibrant pourvu de suspensions élastiques, une caisse de moule déplaçable verticalement au-dessus de la table vibrante, un pilon de compactage déplaçable verticalement au-dessus de la caisse de moule et à l'intérieur de celle-ci et un tiroir permettant le déversement du béton en provenance d'une trémie dans la caisse de moule. [003] It is known to produce concrete products with immediate demoulding on boards by means of vibrating presses. In general, the vibrating presses comprise a vibrating table supported by a vibrating device provided with elastic suspensions, a mold case movable vertically above the vibrating table, a compaction pylon vertically movable above the mold box and inside it and a drawer allowing pouring concrete from a hopper into the mold box.
[004] Les déficiences des presses vibrantes peuvent être à l'origine de défauts sur les produits en béton à démoulage immédiat. Un défaut du pilon, une usure des suspensions élastiques de la table vibrante, un défaut d'inclinaison de la caisse du moule, une hétérogénéité des mouvements de vibrations au cours du remplissage du moule ou du compactage de béton sont par exemple autant de déficiences pouvant entraîner des défauts dans les blocs de béton ou similaires. [005] Afin de détecter l'origine exacte du ou des défauts des produits, il est indispensable de contrôler dans un ordre bien défini l'ensemble des paramètres. Le contrôle et le diagnostic de la presse vibrante s'effectue aujourd'hui majoritairement en phase de maintenance, i.e. à l'arrêt de la production, en étapes successives. En effet, même si l'origine d'un défaut est avérée, elle ne dispense pas le contrôle des autres origines probables, les défauts pouvant se superposer. Chaque composant de la presse vibrante doit être contrôlé indépendamment, soit dans le cadre d'une phase de diagnostic lorsque des défauts avérés sur les produits ont été détectés, soit dans le cadre de phases de maintenance régulières. L'arrêt d'une installation suite à la détection de défauts dans les produits ou dans le cadre d'une maintenance programmée n'est cependant pas sans conséquence en terme de coût, ce dernier étant d'autant plus important que les contrôles sont longs, fastidieux et les déficiences de l'installation parfois difficiles à détecter dans la mesure où les défauts peuvent être dus à plusieurs déficiences conjointes de la presse vibrante. [006] Afin de tenter de limiter les phases de maintenance ou les interventions de réparation nécessitant l'arrêt de l'installation, il est connu de disposer, lorsque que l'encombrement le permet, des capteurs de déplacement et/ou des accéléromètres à différent emplacements de la presse vibrante, et notamment sur les cotés du moule ou sous la planche . De la sorte, il peut être procédé à des contrôles en phase de production. [007] Cette technique présente cependant un certain nombre d'inconvénients. [004] The deficiencies of the vibrating presses can be at the origin of defects on concrete products with immediate demolding. A defect of the pestle, a wear of the elastic suspensions of the vibrating table, a defect of inclination of the box of the mold, a heterogeneity of the movements of vibrations during the filling of the mold or the compaction of concrete are for example as many deficiencies being able cause defects in concrete blocks or the like. [005] In order to detect the exact origin or defects of the products, it is essential to control in a well-defined order all the parameters. The control and diagnosis of the vibrating press is now mainly carried out in the maintenance phase, ie when the production stops, in successive stages. Indeed, even if the origin of a defect is proven, it does not exempt the control of the other probable origins, the defects being able to be superimposed. Each component of the vibrating press must be controlled independently, either as part of a diagnostic phase when proven defects on the products have been detected, or as part of regular maintenance phases. The shutdown of an installation following the detection of defects in the products or in the context of a scheduled maintenance is however not without consequence in terms of cost, the latter being all the more important as the controls are long tedious and deficiencies in the installation sometimes difficult to detect insofar as the defects may be due to several joint deficiencies of the vibrating press. [006] In order to try to limit the maintenance phases or repair interventions requiring the shutdown of the installation, it is known to have, when the space permits, displacement sensors and / or accelerometers to different locations of the vibrating press, and especially on the sides of the mold or under the board. In this way, it is possible to carry out checks during the production phase. [007] This technique, however, has a number of disadvantages.
[008] En premier lieu, les contrôles effectués restent limités au contrôle de la vibration. Ils comprennent des contrôles sur la répétabilité du cycle et la qualité de la vibration. Les moyens permettant de contrôler les paramètres de la presse vibrante pendant un cycle de production restent donc insuffisants, voire inexistants, pour certains paramètres. A titre d'exemple un défaut d'horizontalité constaté sur les produits, dont l'origine est une usure de l'agitateur du tiroir (pièce aidant le déversement du béton dans la caisse de moule), il ne sera pas détecté ni par des mesures de vibration (accéléromètres) ni par des capteurs de déplacement. De même, si l'origine du défaut est un désalignement entre les butées des coulisseaux du moule (et/ou du pilon), il ne sera constaté aucun défaut de vibration. [008] In the first place, the checks carried out are limited to controlling the vibration. They include controls on the repeatability of the cycle and the quality of the vibration. The means for controlling the parameters of the vibrating press during a production cycle therefore remain insufficient or non-existent for certain parameters. As an example of a lack of horizontality found on the products, the origin of which is a wear of the agitator of the drawer (part aiding the pouring of the concrete in the mold box), it will not be detected nor by vibration measurements (accelerometers) or motion sensors. Likewise, if the origin of the defect is a misalignment between the abutments of the sliders of the mold (and / or the pestle), no vibration fault will be noted.
[009] Par ailleurs, si l'existence de certaines déficiences de la presse vibrante peut être détectée durant la phase de production, sans arrêt de celle-ci, l'origine des défauts du produit ne sera cependant pas nécessairement déduite. En effet, parce que l'existence d'une déficience de la presse vibrante perturbe le comportement vibratoire de l'ensemble de la presse vibrante, il peut devenir difficile, voire impossible, de déterminer l'origine même de la déficience. [009] Moreover, if the existence of certain deficiencies of the vibrating press can be detected during the production phase, without stopping it, the origin of the defects of the product will not necessarily be deduced. Indeed, because the existence of a deficiency of the vibrating press disturbs the vibratory behavior of the whole of the vibrating press, it can become difficult, if not impossible, to determine the origin of the vibrating press. disability.
[0010] En outre, la mise en place des capteurs sur la presse vibrante nécessite malgré tout un arrêt de la production pour leur mise en place. In addition, the establishment of sensors on the vibrating press requires a stop production for their implementation.
[0011] Aucun moyen de contrôle rapide et quasi-exhaustif n'est donc à ce jour disponible dans l'état de la technique. No means of rapid and almost exhaustive control is therefore currently available in the state of the art.
[0012] L'invention vise à remédier à ces problèmes en proposant un dispositif de contrôle permettant de diagnostiquer simplement et rapidement une presse vibrante au cours du processus de production de produits en béton, sans arrêt de cette dernière et de détecter de manière précise et exhaustive les éventuelles déficiences de cette dernière. OBJET DE L'INVENTION The invention aims to remedy these problems by providing a control device to diagnose simply and quickly a vibrating press during the production process of concrete products, without stopping the latter and accurately detect and the possible deficiencies of the latter. OBJECT OF THE INVENTION
[0013] A cet effet, et selon un premier aspect, l'invention propose un dispositif de contrôle du fonctionnement d'une presse vibrante au cours du processus de production de produits en béton à démoulage immédiat, ladite presse vibrante comprenant un moule définissant au moins une alvéole dans lequel le béton à compacter est déversé, ledit dispositif de contrôle étant remarquable en ce qu'il comporte une planche destinée à être disposée sous le moule, ladite planche étant pourvue de moyens de mesure de la fréquence de vibration, de l'amplitude et/ou de l'accélération de mouvement, et/ou de la force exercée sur ladite planche durant la production des produits de béton. For this purpose, and according to a first aspect, the invention provides a device for controlling the operation of a vibrating press during the production process of concrete products with immediate demolding, said vibrating press comprising a mold defining the least one cell in which the concrete to be compacted is poured, said control device being remarkable in that it comprises a board intended to be arranged under the mold, said board being provided with means for measuring the vibration frequency, amplitude and / or acceleration of movement, and / or force exerted on said board during the production of the concrete products.
[0014] La présence de moyens de mesure placés directement sur un élément intervenant dans le processus de production, en l'espèce la planche, permet de contrôler la presse vibrante en temps réel, i.e. au cours de la production des produits en béton, et de diagnostiquer le cas échéant les dysfonctionnements de celle-ci. La présence de moyens de mesure sur un élément intervenant dans le processus de production permet de visualiser des phénomènes jusqu'à présent non visualisés avec les dispositifs de contrôle de l'art antérieur tels que la qualité (poids et homogénéité de répartition) du remplissage du béton dans le moule. The presence of measuring means placed directly on an element involved in the production process, in this case the board, to control the vibrating press in real time, ie during the production of concrete products, and to diagnose, if necessary, the dysfunctions of the latter. The presence of measuring means on an element involved in the production process makes it possible to visualize phenomena hitherto not visualized with the control devices of the prior art such as the quality (weight and homogeneity of distribution) of the filling of the concrete in the mold.
[0015] Avantageusement, les moyens de mesure sont arrangés pour définir au moins trois points de mesure sur la planche. Cela permet de garantir un contrôle suffisant du fonctionnement de la presse vibrante. Advantageously, the measuring means are arranged to define at least three measurement points on the board. This ensures sufficient control of the operation of the vibrating press.
[0016] Avantageusement, les moyens de mesure sont intégrés dans la planche. Dans un mode de réalisation préféré, les moyens de mesure sont placés au sein même de la planche. Pour ce faire, ils sont disposés soient dans des cavités prévues à cet effet, soit directement noyés dans le matériau dans lequel la planche est réalisée. Advantageously, the measuring means are integrated in the board. In a preferred embodiment, the measuring means are placed within the board itself. To do this, they are arranged either in cavities provided for this purpose, or directly embedded in the material in which the board is made.
[0017] Avantageusement, les moyens de mesure sont des capteurs de force dynamique. D'autres moyens de mesure connus en soi (accéléromètres, etc.) peuvent bien entendu être mis en œuvre sans sortir du cadre de l'invention. [0017] Advantageously, the measuring means are dynamic force sensors. Other measuring means known per se (accelerometers, etc.) can of course be implemented without departing from the scope of the invention.
[0018] Avantageusement, la planche comporte des moyens de communication des données relevées par lesdits moyens de mesure à une unité d'acquisition et/ou de traitement de données. Il peut être prévu que l'unité soit embarquée sur la planche ou bien qu'elle soit indépendante de cette dernière. Advantageously, the board comprises means for communicating the data recorded by said measuring means to an acquisition unit and / or data processing. It can be expected that the unit is embedded on the board or that it is independent of the board.
[0019] Avantageusement, la planche comporte un module de stockage des données relevées par les moyens de mesure. [0020] Avantageusement, le dispositif de contrôle peut fournir une image à l'instant (t) d'un cycle de fonctionnement attendu de la machine, ladite image constituant un référentiel auquel on se réfère pour déduire l'origine du défaut ainsi que la qualité des produits. Advantageously, the board includes a storage module of the data recorded by the measuring means. Advantageously, the control device can provide an image at the instant (t) of an expected operating cycle of the machine, said image constituting a referential to which reference is made to deduce the origin of the defect as well as the product quality.
[0021] L'invention concerne également une installation pour la production de produits en béton à démoulage immédiat comprenant au moins une presse vibrante comprenant un moule définissant au moins une alvéole dans lequel le béton à compacter est déversé, un pilon de compactage du béton disposée au-dessus du moule et une table vibrante disposée sous le moule, et un dispositif de contrôle tel que décrit précédemment, ledit dispositif de contrôle permettant de contrôler des paramètres de production de la presse vibrante au cours du processus de fabrication des produits en béton lorsque la planche est en position sur la table vibrante. The invention also relates to an installation for the production of immediate mold release concrete products comprising at least one vibrating press comprising a mold defining at least one cell in which the concrete to be compacted is poured, a compacting pylon of the concrete disposed above the mold and a vibrating table disposed under the mold, and a control device as described above, said control device for controlling production parameters of the vibrating press during the manufacturing process of concrete products when the board is in position on the vibrating table.
[0022] L'installation ainsi équipée d'un dispositif de contrôle selon l'invention, il est possible de contrôler rapidement, et sans interruption du cycle de production, l'état de plusieurs composants de celle-ci. The installation thus equipped with a control device according to the invention, it is possible to control quickly, and without interruption of the production cycle, the state of several components of it.
[0023] Avantageusement, le dispositif comporte des moyens d'enregistrement des paramètres de production relevés au cours du processus de fabrication des produits en béton. [0024] Avantageusement, la planche constitue une planche de transport des produits en béton pressé et compacté. Advantageously, the device comprises means for recording the production parameters recorded during the manufacturing process of concrete products. Advantageously, the board is a transport board of pressed and compacted concrete products.
BREVE DESCRIPTION DES FIGURES BRIEF DESCRIPTION OF THE FIGURES
[0025] D'autres objets et avantages de l'invention apparaîtront au cours de la description qui suit, faite en référence aux dessins annexés, dans lesquels : - la figure 1 représente une vue schématique d'une installation pour la production de produits en béton comprenant un dispositif de contrôle selon l'invention ; Other objects and advantages of the invention will become apparent from the following description, made with reference to the accompanying drawings, in which: - Figure 1 shows a schematic view of an installation for the production of products in concrete comprising a control device according to the invention;
- la figure 2 représente une vue schématique en perspective et en transparence du dispositif de contrôle de la figure 1 selon une première configuration de réalisation ; FIG. 2 represents a schematic view in perspective and in transparency of the control device of FIG. 1 according to a first embodiment configuration;
- la figure 3 représente une vue en coupe selon l'axe III- III du dispositif de contrôle de la figure 2 ; - Figure 3 shows a sectional view along the axis III-III of the control device of Figure 2;
- la figure 4 représente une vue schématique de dessus du dispositif de contrôle de la figure 2 ; FIG. 4 represents a schematic view from above of the control device of FIG. 2;
- la figure 5 représente une vue schématique de dessus d'un dispositif de contrôle selon une autre configuration de réalisation ; - la figure 6 montre un cycle de fabrication de produits en béton obtenue avec un dispositif de contrôle de la figure 2. FIG. 5 represents a schematic view from above of a control device according to another embodiment configuration; FIG. 6 shows a production cycle of concrete products obtained with a control device of FIG. 2.
[0026] Pour plus de clarté, les éléments identiques ou similaires des différents modes de réalisation sont repérés par des signes de référence identiques sur l'ensemble des figures. DESCRIPTION DETAILLEE DES FIGURES For clarity, identical or similar elements of the different embodiments are identified by identical reference signs throughout the figures. DETAILED DESCRIPTION OF THE FIGURES
[0027] En relation avec la figure 1 , il est décrit une installation 1 comprenant une presse vibrante associée à une ligne de transfert 8 de planches de presse pour la production de produits en béton à démoulage immédiat. [0028] La presse vibrante comprend deux postes principaux : un poste d'alimentation en béton 2 et un poste de vibration et de compactage 3. In connection with Figure 1, there is described an installation 1 comprising a vibrating press associated with a transfer line 8 of press boards for the production of concrete products immediate mold release. The vibrating press comprises two main stations: a concrete feed station 2 and a vibration and compacting station 3.
[0029] Le poste d'alimentation en béton 2 comprend une trémie 20 disposée au- dessus du tiroir 21 apte à se déplacer horizontalement, entre une position de chargement de béton depuis la trémie à une position de déversement du béton dans un moule 30 de la presse. L'ouverture de la trémie 20 permettant l'écoulement du béton sur le tiroir 21 , est commandée par un vérin 22 lequel actionne le basculement du casque 23 de la trémie 20 entre une position d'ouverture à une position de fermeture. The concrete feed station 2 comprises a hopper 20 disposed above the drawer 21 adapted to move horizontally between a concrete loading position from the hopper to a concrete pouring position in a mold 30 of the press. The opening of the hopper 20 allowing the flow of concrete on the drawer 21, is controlled by a jack 22 which actuates the tilting of the helmet 23 of the hopper 20 between an open position to a closed position.
[0030] Le poste de vibration et de compactage 3 comprend un moule 30 définissant des alvéoles dans lequel le béton à compacter est déversé depuis le tiroir 21 , un pilon de compactage 31 du béton disposé au-dessus du moule 30 ainsi qu'une une table vibrante 32 placée sous le moule. Le moule 30 et le pilon de compactage 31 sont respectivement déplaçables verticalement. A chaque cycle de production de produit(s) en béton, une planche 4 est placée sur la table vibrante 32, le moule 30 venant se positionner au dessus de la planche. [0031] La presse vibrante comporte en sortie une extension (non représentée) de la ligne de transfert 8 qui évacue le ou les produits ) en béton « fini(s) ». Par produit « fini », on entend le produit démoulé. Dans le mode de réalisation illustré, le produit « fini » est transféré sur la planche sur laquelle il a été moulé via par exemple, une extension (non représentée) du tapis transporteur 80. [0032] Selon l'invention, l'installation 1 comporte un dispositif de contrôle 10 du fonctionnement de la presse vibrante. Comme on le comprendra plus loin, le contrôle est réalisé durant le cycle de production des produits, une planche étant en position sur la table vibrante. [0033] Le dispositif de contrôle 10 comprend la planche 4 laquelle, pour ce faire, est instrumentalisée. Plus particulièrement, la planche 4 est pourvue de moyens de mesure 5 de la fréquence de vibration, de l'amplitude et/ou de l'accélération de mouvement et/ou de la force exercée sur ladite planche durant la production des produits de béton. Les moyens de mesure 5 sont avantageusement des capteurs de force dynamique. The vibration and compaction station 3 comprises a mold 30 defining cells in which the concrete to be compacted is discharged from the drawer 21, a compacting pylon 31 of the concrete disposed above the mold 30 and a vibrating table 32 placed under the mold. The mold 30 and compacting pestle 31 are respectively vertically movable. At each production cycle of product (s) concrete, a board 4 is placed on the vibrating table 32, the mold 30 being positioned above the board. The vibrating press comprises an output (not shown) of the transfer line 8 which discharges the product or products) finished "concrete (s)". By "finished" product is meant the demolded product. In the illustrated embodiment, the "finished" product is transferred to the board on which it has been molded via, for example, an extension (not shown) of the conveyor belt 80. According to the invention, the installation 1 comprises a device 10 for controlling the operation of the vibrating press. As will be understood later, the control is performed during the production cycle of the products, a board being in position on the vibrating table. The control device 10 comprises the board 4 which, for this purpose, is instrumentalised. More particularly, the board 4 is provided with means 5 for measuring the vibration frequency, the amplitude and / or the acceleration of movement and / or the force exerted on said board during the production of the concrete products. The measuring means 5 are advantageously dynamic force sensors.
[0034] Dans le mode de réalisation illustré sur les figures 2 à 4, la planche 4 comporte cinq capteurs 50 A à 50E répartis de manière régulière au sein de celle-ci. Plus particulièrement, quatre des capteurs 50A, 50B, 50D et 50E sont disposés en périphérie de la planche, au niveau des angles de cette dernière, le cinquième 50C étant placé centralement. Les capteurs 50A, 50B, 50D et 50E sont symétriques par rapport aux plans médians. L'avantage d'une répartition symétrique et régulière est de permettre de vérifier la planéité de la planche 4 sur laquelle le moule repose et donc d'établir l'éventuelle cause pour laquelle le ou les produits en béton obtenu(s) ne serait pas plan ou présenterai(en)t des différences de hauteur. [0035] Les capteurs 50A à 50E sont reliés par voie filaire à un connecteur 6 constituant un module de stockage de données relevées par les capteurs 50A à 50E. Pour ce faire, le connecteur 6 est relié à chaque capteur 50 A à 50E par des canaux internes 7 permettant le passage des fils. Il peut être prévu également que les fils reliant le connecteur aux capteurs passent dans des saignées prévues à cet effet sur la face inférieure 40 de la planche 4. In the embodiment illustrated in Figures 2 to 4, the board 4 comprises five sensors 50 to 50E distributed regularly within it. More particularly, four of the sensors 50A, 50B, 50D and 50E are disposed at the periphery of the board, at the corners thereof, the fifth 50C being placed centrally. The sensors 50A, 50B, 50D and 50E are symmetrical with respect to the median planes. The advantage of a symmetrical and regular distribution is to make it possible to check the flatness of the board 4 on which the mold rests and thus to establish the possible cause for which the concrete product (s) obtained (s) would not be plan or present (in) t differences in height. The sensors 50A to 50E are connected by wire to a connector 6 constituting a data storage module identified by the sensors 50A to 50E. To do this, the connector 6 is connected to each sensor 50 A to 50E by internal channels 7 allowing the passage of son. It may also be provided that the son connecting the connector to the sensors pass in grooves provided for this purpose on the lower face 40 of the board 4.
[0036] Le dispositif de contrôle 10 comporte en outre une unité d'acquisition et/ou de traitement de données (non représentée) destinée à être reliée au connecteur par voie filaire ou par voie non filaire. Les données relevées par les capteurs 5 sont ainsi transmises via le connecteur 6 à l'unité d'acquisition et/ou de traitement de données. [0037] Dans les modes de réalisation précédemment décrits, l'unité d'acquisition et/ou de traitement de données est distincte et indépendante de la planche 4. Selon un autre mode de réalisation particulièrement avantageux, il peut être prévu également que l'unité d'acquisition et/ou de traitement de données soit directement embarquée sur la planche 4. The control device 10 further comprises an acquisition unit and / or data processing (not shown) intended to be connected to the connector by wired or non-wired. The data recorded by the sensors 5 are thus transmitted via the connector 6 to the acquisition and / or data processing unit. In the embodiments described above, the acquisition and / or data processing unit is distinct and independent of the board 4. According to another particularly advantageous embodiment, it can also be provided that the unit of acquisition and / or data processing is directly embedded on the board 4.
[0038] La figure 5 illustre un autre mode de réalisation dans lequel la planche comporte huit capteurs 50A à 50H. Comme dans l'exemple précédent, les capteurs 50A à 50H sont répartis de manière à définir une couverture régulière de la planche 4. [0038] FIG. 5 illustrates another embodiment in which the board has eight sensors 50A to 50H. As in the previous example, the sensors 50A to 50H are distributed so as to define a regular coverage of the board 4.
[0039] Le nombre de capteurs 50A à 50H n'est bien entendu pas limité au nombre illustré dans les modes de réalisation représentés sur les figures 4 et 5. Cependant, afin d'assurer un contrôle efficace du fonctionnement de la presse vibrante, les planches 4 comprendront au minium trois capteurs (ou tout autre moyen de mesure). The number of sensors 50A to 50H is of course not limited to the number illustrated in the embodiments shown in Figures 4 and 5. However, to ensure effective control of the operation of the vibrating press, the boards 4 will include at least three sensors (or any other means of measurement).
[0040] La planche ainsi instrumentalisée permet, associée à une unité de traitement et/ou d'acquisition de relever des données relatives aux composants de la presse vibrante intervenant dans la production des produits en béton (moule, table vibrante, pilon de compactage). Elle permet par exemple d'établir l'existence de défaut d'horizontalité du moule ou du pilon de compactage, de relever une hétérogénéité dans le poids du béton lors de son déversement dans le moule ainsi qu'en matière d'application des vibrations au cours du remplissage du moule et/ou du compactage du béton. The thus instrumentalized board allows, associated with a processing unit and / or acquisition to record data relating to the components of the vibrating press involved in the production of concrete products (mold, vibrating table, compacting pestle) . It makes it possible, for example, to establish the existence of horizontal defect of the compacting mold or pestle, to note a heterogeneity in the weight of the concrete when it is poured into the mold as well as for the application of vibrations to the mold. during the filling of the mold and / or the compaction of the concrete.
[0041] A titre d'exemple, la figure 6 montre des données relevées par une planche 4 instrumentalisée du type de celle illustrée sur la figure 2 au cours d'un cycle de fabrication de produits de béton pour lesquels il a été constaté, en sortie de presse, une hétérogénéité dans les hauteurs de produits. Les données relevées à l'aide de la planche 4 instrumentalisée montre, entre t = 0 seconde et t = 1 seconde, une hétérogénéité de l'effort entre les deux capteurs situés à gauche de la planche (figure 2, capteurs 50A, 50B) et les deux capteurs situés à droite de la planche (figure 2, capteurs 50D, 50E). Le graphique met ainsi clairement en évidence la présence d'un défaut de positionnement du moule. Ce défaut est confirmé lors du serrage du moule sur la planche 4. A t = 2 secondes, on note l'arrivée brusque de la masse du tiroir 21 sur le moule. A t = 5 secondes, le tiroir 21 est en position et l'agitation commence. On constate alors, à t = 6 secondes, des réponses opposées entre les capteurs de gauche 50A et 50B et les capteurs de droite 50D et 50E, traduisant un défaut de remplissage entre les deux cotés de la planche, les alvéoles de gauche du moule étant davantage remplies que les alvéoles de droite du moule. Grâce aux données relevées par la planche 4 instrumentalisée durant le cycle de fabrication, l'origine du défaut de hauteurs de produits peut ainsi être déterminée (défaut d'horizontalité du moule) de manière immédiate, sans arrêt de l'installation. [0042] L'utilisation de la planche 4 instrumentalisée ne se limite pas à l'installation 1 illustrée sur la figure 1 , celle-ci pouvant être mise en œuvre avec toute autre type de presse vibrante assurant la fabrication des produits en béton à démoulage immédiat. By way of example, FIG. 6 shows data taken by an instrumentalised plate 4 of the type illustrated in FIG. 2 during a concrete product manufacturing cycle for which it has been found, in release of press, a heterogeneity in the heights of products. The data recorded using the instrumentalised plate 4 shows, between t = 0 seconds and t = 1 second, a heterogeneity of the effort between the two sensors located on the left of the board (FIG. 2, sensors 50A, 50B). and the two sensors located on the right of the board (FIG. 2, sensors 50D, 50E). The graph clearly shows the presence of a mold positioning defect. This defect is confirmed when clamping the mold on the board 4. At t = 2 seconds, we note the abrupt arrival of the mass of the drawer 21 on the mold. At t = 5 seconds, the drawer 21 is in position and stirring begins. At t = 6 seconds, opposite responses are found between the left-hand sensors 50A and 50B and the right-hand sensors 50D and 50E, indicating a filling defect between the two sides of the board, the cells on the left of the mold being more filled than the right cells of the mold. Thanks to the data recorded by the instrumentalized plate 4 during the manufacturing cycle, the origin of the product height defect can thus be determined (mold horizontality defect) immediately, without stopping the installation. The use of the instrumentalized board 4 is not limited to the installation 1 illustrated in Figure 1, it can be implemented with any other type of vibrating press for the production of concrete products demoulding immediate.
[0043] L'invention est décrite dans ce qui précède à titre d'exemple. Il est entendu que l'homme du métier est à même de réaliser différentes variantes de réalisation de l'invention sans pour autant sortir du cadre de l'invention. The invention is described in the foregoing by way of example. It is understood that the skilled person is able to achieve different embodiments of the invention without departing from the scope of the invention.

Claims

REVENDICATIONS
Dispositif de contrôle (10) du fonctionnement d'une presse vibrante au cours du processus de production de produits en béton à démoulage immédiat, ladite presse vibrante comprenant un moule (30) définissant au moins une alvéole dans lequel le béton à compacter est déversé, ledit dispositif de contrôle (10) étant caractérisé en ce qu'il comporte une planche (4) destinée à être disposée sous le moule (30), ladite planche étant pourvue de moyens de mesure (5) de la fréquence de vibration, de l'amplitude et/ou de l'accélération de mouvement, et/ou de la force exercée sur ladite planche durant la production des produits de béton. Device (10) for controlling the operation of a vibrating press during the production process of concrete products with immediate demolding, said vibrating press comprising a mold (30) defining at least one cell in which the concrete to be compacted is poured, said control device (10) being characterized in that it comprises a board (4) intended to be arranged under the mold (30), said board being provided with means (5) for measuring the vibration frequency, amplitude and / or acceleration of movement, and / or force exerted on said board during the production of the concrete products.
Dispositif de contrôle (10) selon la revendication 1 , caractérisé en ce que les moyens de mesure (5) sont arrangés pour définir au moins trois points de mesure sur la planche (4). Control device (10) according to claim 1, characterized in that the measuring means (5) are arranged to define at least three measuring points on the board (4).
Dispositif de contrôle (10) selon la revendication 1 ou la revendication 2, caractérisé en ce que les moyens de mesure (5) sont intégrés dans la planche (4). Control device (10) according to claim 1 or claim 2, characterized in that the measuring means (5) are integrated in the board (4).
Dispositif de contrôle (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que les moyens de mesure (5) sont des capteurs de force dynamique (50A à 50H). Control device (10) according to one of the preceding claims, characterized in that the measuring means (5) are dynamic force sensors (50A to 50H).
Dispositif de contrôle (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la planche (4) comporte des moyens de communication des données relevées par lesdits moyens de mesure (5) à une unité d'acquisition et/ou de traitement de données. Control device (10) according to any one of the preceding claims, characterized in that the board (4) comprises means for communicating the data read by said measuring means (5) to an acquisition unit and / or data processing.
Dispositif de contrôle (10) selon la revendication 5, caractérisé en ce que l'unité d'acquisition et/ou de traitement de données est embarquée sur la planche (4). Control device (10) according to claim 5, characterized in that the acquisition unit and / or data processing is embedded on the board (4).
Dispositif de contrôle selon l'une quelconque des revendications précédentes, caractérisé en ce que la planche (4) comporte un module de stockage des données relevées par les moyens de mesure (5). Control device according to any one of the preceding claims, characterized in that the board (4) comprises a module for storing the data recorded by the measuring means (5).
8. Installation (1) pour la production de produits en béton à démoulage immédiat comprenant 8. Installation (1) for the production of concrete products with immediate mold release comprising
une presse vibrante (3) comportant un moule (30) définissant au moins une alvéole dans lequel le béton à compacter est déversé, un pilon de compactage (31) du béton disposée au-dessus du moule et une table vibrante (32) disposée sous le moule, et  a vibrating press (3) comprising a mold (30) defining at least one cell in which the concrete to be compacted is poured, a compacting pylon (31) of the concrete disposed above the mold and a vibrating table (32) arranged under the mold, and
un dispositif de contrôle (10) selon l'une quelconque des revendications précédentes, ledit dispositif permettant de contrôler des paramètres de production de la presse vibrante au cours du processus de fabrication des produits en béton lorsque la planche (4) est en position sur la table vibrante. 9. Installation (1) selon la revendication 8, caractérisée en ce que le dispositif de contrôle (10) comporte des moyens d'enregistrement des paramètres de production relevés au cours du processus de fabrication des produits en béton.  a control device (10) according to any one of the preceding claims, said device for controlling production parameters of the vibrating press during the manufacturing process of the concrete products when the board (4) is in position on the vibrating table. 9. Installation (1) according to claim 8, characterized in that the control device (10) comprises means for recording the production parameters recorded during the manufacturing process of concrete products.
10. Installation (1) selon la revendication 8 ou la revendication 9, caractérisée en ce que la planche (4) constitue une planche de transport des produits en béton pressé et compacté. 10. Installation (1) according to claim 8 or claim 9, characterized in that the board (4) constitutes a transport board of compressed and compacted concrete products.
EP16750888.6A 2015-06-26 2016-06-27 Facility including a device for real-time monitoring of the operation of a vibrating press producing concrete products for immediate mold release Active EP3313634B1 (en)

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FR1555959A FR3037844B1 (en) 2015-06-26 2015-06-26 REAL-TIME CONTROL DEVICE FOR THE OPERATION OF A VIBRATION PRESS PRODUCING IMMEDIATE DEMOLDING CONCRETE PRODUCTS AND INSTALLATION COMPRISING SUCH A DEVICE.
PCT/FR2016/051575 WO2016207578A1 (en) 2015-06-26 2016-06-27 Device for real-time monitoring of the operation of a vibrating press producing concrete products for immediate mold release, and facility including such a device

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EP3313634C0 (en) 2023-06-07
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WO2016207578A1 (en) 2016-12-29
HRP20230785T1 (en) 2023-10-27
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FR3037844A1 (en) 2016-12-30

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