EP3533574B1 - Installation et procédé de production d'éléments en béton - Google Patents

Installation et procédé de production d'éléments en béton Download PDF

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Publication number
EP3533574B1
EP3533574B1 EP18197476.7A EP18197476A EP3533574B1 EP 3533574 B1 EP3533574 B1 EP 3533574B1 EP 18197476 A EP18197476 A EP 18197476A EP 3533574 B1 EP3533574 B1 EP 3533574B1
Authority
EP
European Patent Office
Prior art keywords
fastening element
formwork
concrete
actuator
surface section
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.)
Active
Application number
EP18197476.7A
Other languages
German (de)
English (en)
Other versions
EP3533574A1 (fr
Inventor
Hans-Jörg Vollert
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.)
Vollert Anlagenbau GmbH
Original Assignee
Vollert Anlagenbau GmbH
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Publication date
Application filed by Vollert Anlagenbau GmbH filed Critical Vollert Anlagenbau GmbH
Publication of EP3533574A1 publication Critical patent/EP3533574A1/fr
Application granted granted Critical
Publication of EP3533574B1 publication Critical patent/EP3533574B1/fr
Active legal-status Critical Current
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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
    • B28B7/08—Moulds provided with means for tilting or inverting
    • B28B7/085—Moulds provided with means for tilting or inverting for making double wall 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B28B7/0017—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps for attaching mould walls on mould tables
    • 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
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • B28B7/002—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps using magnets

Definitions

  • the invention relates to a system and a method for producing concrete elements, in particular for producing double-walled precast concrete parts.
  • a turning device is often used to produce double-walled precast concrete parts.
  • To manufacture the double wall it is usually First, the upper concrete element, the so-called upper shell, is concreted on a pallet in an area delimited by formwork elements.
  • the crossbeam of the turning device picks up and locks the pallet with the hardened upper shell.
  • the first concrete element is secured on the pallet so that it does not fall off the pallet during the turning process.
  • the traverse rotates the pallet with the hardened upper shell by 180 ° and lowers it into a freshly concreted lower shell.
  • this turning device has a holding device with a pivotably mounted clamping arm, which can be moved between a holding position and a release position.
  • the tensioning arm can be pushed into the holding position by means of a cross-member, in which the tensioning arm can be tensioned with the concrete part via an inflatable hose.
  • EP-A2-2 397 294 discloses a plant for the production of concrete elements according to the preamble of claim 1.
  • Der DE-A1-1 962 529 discloses a method for manufacturing concrete elements with the steps according to the preamble of claim 10.
  • a system for producing, for example double-walled, concrete elements essentially has at least one pallet, a plurality of formwork elements which can be detachably fixed on the at least one pallet, and at least one holding device for securing a concrete element on the at least one pallet.
  • the formwork elements each have at least one formwork surface section which defines a side wall section of the concrete element to be produced.
  • the formwork elements are arranged on the pallet in such a way that their formwork surface sections, together with the pallet, form an upwardly open space which, as a casting mold, defines the contour of the concrete element to be produced.
  • the at least one holding device is provided with at least one actuator and at least one fastening element which is integrated in one of the formwork elements.
  • the at least one fastening element and also the at least one actuator can essentially be housed in the respective formwork element.
  • the at least one fastening element is actuated by the at least one actuator from a release position that does not protrude beyond the formwork surface section into one above the formwork surface section protruding stop position movable.
  • the fastening element a distinction is therefore made between two states, namely the release position in which the fastening element is essentially inside the formwork element and the holding position in which the fastening element protrudes at least partially from the respective formwork element.
  • This configuration enables a concrete element to be fastened on the pallet by moving the fastener into the holding position. Conversely, the concrete element can be separated from the pallet when the fastener is in its release position.
  • fastening elements integrated in the formwork elements it is possible to clamp a concrete element very quickly on a pallet or to quickly release the locking.
  • the effort for assembly and operation with a fastening element integrated into the formwork element is comparatively low compared to conventional solutions, and the installation space outside the formwork elements is not required due to the locking of the concrete element on the pallet. This space can thus be used to implement other functions, for example to brace reinforcement elements. Since there is no need to handle the relatively heavy clamping arms, the workload in the systems is reduced and occupational safety is increased.
  • hardened concrete elements are usually fixed on the pallet.
  • the fastening element either engages behind a hardened concrete element and / or engages in a recess in the concrete element.
  • the configuration of the system according to the invention also offers the possibility of transferring the fastening element into the holding position before or while the concrete element is being poured.
  • the fastening element is thus cast into the concrete, which leads to a positive connection of the concrete element with the fastening element and thus with the formwork elements and the pallet on which the formwork element is fastened.
  • the fastening element can thus be brought into the holding position at different times during the manufacturing process of the concrete element.
  • the fastening element can be brought from the release position into the holding position by means of the actuator.
  • the fastening element can then be transferred from the holding position into the release position, for example by gravity.
  • the at least one fastening element, actuated by the at least one actuator can be moved from the holding position into the release position.
  • the at least one fastening element can be provided with a cap which can be detached from the fastening element and which extends from the fastening element from a release position which does not protrude beyond the formwork surface section to a position in which the fastening element protrudes the formwork surface section projecting stop position is movable.
  • a cap which can be made of plastic, for example, preferably envelops the fastening element at least in regions and can dip laterally into the concrete or the finished concrete element and remain there. In other words, the cap acts like a lost dowel to anchor the fastener in the concrete. The fastener is protected from contamination in this way and is easy to operate.
  • the at least one fastening element can be a pawl which is displaceably mounted, in particular rigid, in a formwork element, for example a cylindrical or conical bolt, a threaded rod or the like.
  • the at least one fastening element can have an elastically deformable sleeve, which can be deformed from a release position not protruding beyond the formwork surface section into a holding position protruding beyond the formwork surface section.
  • Other alternative embodiments include, for example, from the release position in the holding position tiltable or pivotable fastener.
  • the at least one actuator can have a chamber which can be acted upon by a fluid and which is connected directly or by means of a piston arrangement to the fastening element.
  • a pawl or the like can be extended and retracted by a pressurized fluid.
  • the switchover between extension and retraction movements can be controlled, for example, by operating a valve.
  • the chamber can be assigned a source of pressurized fluid which can be connected to the chamber via a valve arrangement.
  • the at least one actuator can have a chamber to which a fluid can be applied, which is delimited at least in regions by the elastically deformable sleeve or at least in regions by an elastically deformable element arranged in the elastically deformable sleeve.
  • the fastening element can consist of an outer elastic covering element, similar to a bicycle tire, that is fixedly mounted in the formwork element and, when pressurized, presses against or engages in the concrete element. This creates a non-positive connection between the outer elastic envelope element and the concrete element.
  • a pawl or the like forming the fastening element can have a toothed rack or can be connected to a toothed rack, the at least one actuator being a rotationally driven pinion can have, which is in engagement with the rack. An actuation of the pinion then causes a translational movement of the rack and the pawl connected to it.
  • a spring and / or an (electro) magnet are further examples of a bistable actuator that can be used in the system according to the invention.
  • a control for actuating the at least one actuator is assigned to the at least one actuator.
  • the controller actuates the actuator preferably as a function of a signal generated manually, by cable, by radio and / or by a sensor.
  • Suitable sensors for actuating the actuator are an inclination switch, an acceleration sensor or the like.
  • the above-mentioned object is further achieved with a method for producing, for example double-walled, concrete elements, in particular in a recirculating method, with the following steps: provision of a pallet, subsequent application of formwork elements to the pallet, at least one of the formwork elements being an actuator from one does not have a release position protruding beyond a formwork surface section into a fastening element which can be moved beyond the formwork surface section, subsequent extension of the at least one fastening element from the release position into the holding position, subsequent filling of concrete into the space defined by the pallet and the formwork elements, subsequent turning of the pallet the hardening of the concrete, and then withdrawing the at least one fastening element from the holding position into the release position.
  • the method is based on the idea that the fastening element can be poured into the concrete of the concrete element to be produced if the fastening element is already in its holding position during the pouring of the concrete. This enables a particularly good connection with the formwork elements and the pallet, without the need for complex work steps after curing.
  • the production of double-walled concrete elements in the circulation process can include further steps, for example cleaning formwork elements and the pallet, plotting the positions to which the formwork elements are to be placed, for example robot-controlled, installing reinforcements, transport between individual stations and the like.
  • Figure 1 shows a schematic diagram of part of a plant for the production of concrete elements in the pallet circulation process, in particular for the production of double-walled concrete elements.
  • a formwork element 2 is arranged on a pallet 1 and is detachably fastened to the pallet 1 by a holder 3, for example magnetically.
  • a fastening element 4 is shown, which can be actuated via a bistable actuator 5, to which a trigger 6 and an energy store 7 are assigned.
  • Figure 1 shows a state in which the fastening element 4 is in its holding position, in which the fastening element 4 protrudes at least in regions from the formwork element 2 and engages in the schematically indicated concrete element 8.
  • the holding position is defined in this context in such a way that the fastening element 4 protrudes towards the concrete element 8 via a formwork surface section 9 of the formwork element 2.
  • the formwork surface section 9 is an outer surface of the formwork element 2 lying against the concrete element 8 Figure 1 Not shown release position, the fastening element 4 is retracted so far into the formwork element 2 that the fastening element 4 does not protrude, or at least not significantly, beyond the formwork surface section 9 of the formwork element 2 in the direction of the concrete element 8.
  • the actuator 5 can either be used exclusively for extending the fastening element 4 from the release position into the holding position or can additionally also retract the fastening element 4 from the holding position into the release position.
  • the in Figure 1 The trigger 6 shown can have a controller in order to actuate the actuator 5 as a function of a signal. For this purpose, energy stored in the energy store 7 can be released.
  • the trigger 6 or the control can be provided with switches or sensors in order to actuate the actuator 5 automatically.
  • the actuator 5 can extend the fastening element 4 into the holding position as soon as the formwork element 2 is fastened on the pallet 1 by means of the holder 3.
  • the placement of the formwork element 2 on the pallet 1 and the triggering of the holder 3 can be detected, for example, by means of an inclination switch and / or an acceleration sensor.
  • the actuator 5 can be actuated in order to transfer the fastening element 4 from the holding position into the release position when the tilt switch tilts the pallet 1 by, for example, 180 ° and / or by means of the acceleration sensor, a specific acceleration value which is detected when shaking the upper shell, ie during compaction.
  • the fastening element 4 designed as a pawl, which is guided in the formwork element 2, for example approximately parallel to the pallet 1, slidably.
  • the energy store 7 is designed as a chamber with pressurized fluid or a fluid source, which can be connected to a cylinder via a valve unit, for example integrated into the trigger 6, around a piston of the fastening element 4 or to actuate a piston connected to it.
  • the valve unit can be designed in such a way that the fastening element 4 can be actively retracted into the release position.
  • the jack is on the in Figure 2 lower side designed beveled, so that the connection to the concrete element 8 (not shown) can be released after the turning process by the force of gravity acting on the concrete element if no pressure is exerted on the piston connected to the pawl.
  • a formwork element 2 is also shown in cross section, which in turn has an energy store 7 in the form of a chamber with pressurized fluid and a valve arrangement as a trigger 6.
  • the valve arrangement is connected via a line to an inflatable tube 10 or the like elastically deformable element.
  • an elastically deformable sleeve 11 is further introduced, which surrounds the inflatable tube 10 in some areas. In its undeformed state, the casing 11 is arranged, for example, approximately flush with the formwork surface section 9 of the formwork element 2, which corresponds to the release position (not shown).
  • the inflatable tube 10 is pressurized with the pressurized fluid from the energy store 7, the tube 10 deforms the shell 11 such that it protrudes over the formwork surface section 9 of the formwork element 2 in the direction of the concrete element 8, which is shown in Figures 3 and 4 shown stop position corresponds.
  • the fastening element 4, which is formed by the sleeve 11 can be transferred from the holding position into the release position by releasing pressure from the inflatable tube 10.
  • Figure 5 shows a formwork element 2 in a horizontal section.
  • a fastening element 4 is slidably mounted.
  • the fastener In this embodiment, 4 is formed in one piece with a toothed rack 12 which engages with a pinion 13.
  • the rack 12 and the pinion 13 together form an actuator 5 for actuating the fastening element 4.
  • the pinion 13 is connected to a motor, not shown, so that, depending on the direction of rotation of the pinion 13, the fastening element 4 moves into the position shown in FIG Figure 5 shown stop position or can be moved back to the release position.
  • a cap 14 which surrounds the areas of the fastening element 4 which project above the formwork surface section 9 of the formwork element 2 in the direction of the concrete element 8 in the holding position.
  • the cap 14 forms a lost dowel, which is inserted into the concrete element 8 by the fastening element 4 and remains there when the fastening element 4 is pulled back into the release position.
  • the fastening element can be actuated by means of a thread or a worm gear.
  • the concrete encloses the fastening elements 4 and the optionally provided caps 14, which creates a connection between the concrete and the formwork elements 2 or the pallet 1.
  • This connection means that the concrete element created after the concrete has hardened, ie one wall of the double-walled concrete part, remains firmly connected to the pallet 1. It is thus possible to tilt the pallet 1 by 180 ° and to bring the concrete element 8 upside down in a form in which the second wall of the double-walled concrete part is produced. The pallet 1 can then be released from the concrete element 8 by transferring the fastening elements 4 into the release position.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Claims (10)

  1. Installation, destinée à fabriquer des éléments en béton, pourvue d'au moins un palette (1), de plusieurs éléments de coffrage (2), qui sont susceptibles d'être fixés de manière amovible sur l'au moins une palette (1), et pourvue d'au moins un système de maintien, destiné à sécuriser un élément en béton (8) sur l'au moins une palette (1), les éléments de coffrage (2) comportant chacun au moins un segment de surface de coffrage (9), lequel définit un segment de paroi latérale de l'élément en béton (8) qui doit être fabriqué, l'au moins un système de maintien comportant au moins un actionneur (5) et au moins un élément de fixation (4), lequel est intégré dans l'un des éléments de coffrage (2), l'au moins un élément de fixation (4) manœuvré par l'au moins un actionneur (5) étant mobile d'une position de libération, ne débordant pas au-delà du segment de surface de coffrage (9) dans une position de maintien débordant au-delà du segment de surface de coffrage (9), caractérisée en ce que l'installation comporte par ailleurs un capteur d'accélération et/ou un capteur d'inclinaison et en ce que l'élément de fixation (4) est maintenu dans la position de maintien lorsque la capteur d'accélération détecte une accélération déterminée et/ou le capteur d'inclinaison détecte une orientation définie de la palette (1).
  2. Installation selon la revendication 1, caractérisée en ce que l'au moins un élément de fixation (4), manœuvré par l'au moins un actionneur (5) est mobile de la position de maintien dans la position de libération.
  3. Installation selon la revendication 1 ou 2, caractérisée en ce que l'au moins un élément de fixation (4) est muni d'une calotte (14) amovible par rapport à l'élément de fixation (4), qui est mobile par l'élément de fixation (4) d'une position de libération ne débordant pas au-delà du segment de surface de coffrage (9) dans une position de maintien débordant au-delà du segment de surface de coffrage (9).
  4. Installation selon l'une quelconque des revendications précédentes, caractérisée en ce que l'au moins un élément de fixation (4) est un cliquet logé de manière déplaçable dans un élément de coffrage (2) ou en ce que l'au moins un élément de fixation (4) comporte une enveloppe (11) élastiquement déformable, qui est déformable d'une position de libération ne débordant pas au-delà du segment de surface de coffrage (9) dans une position de maintien débordant au-delà du segment de surface de coffrage (9).
  5. Installation selon la revendication 4, caractérisée en ce que l'au moins un actionneur (5) comporte une chambre (7, 12) susceptible d'être exposée à un fluide, qui est reliée directement ou au moyen d'un ensemble de pistons avec l'élément de fixation (4, 11).
  6. Installation selon la revendication 5, caractérisée en ce qu'à la chambre (7, 11) est associée une source d'un fluide sous pression, qui par l'intermédiaire d'un ensemble de soupapes (6) est susceptible d'être reliée avec la chambre (7, 11).
  7. Installation selon la revendication 4, caractérisée en ce que le cliquet comporte une crémaillère (12) ou est relié avec une crémaillère (12), et en ce que l'au moins un actionneur (5) comporte un pignon (13) entraîné en rotation, qui est en engrènement avec la crémaillère (12).
  8. Installation selon la revendication 4, caractérisée en ce que l'au moins un actionneur (5) comporte un ressort et/ou un électroaimant.
  9. Installation selon l'une quelconque des revendications précédentes, caractérisée en ce qu'à l'au moins un actionneur (5) est associé un système de commande, destiné à manœuvrer l'au moins un actionneur (5) en fonction d'un signal généré manuellement, par voie filaire, par radio et/ou par un capteur.
  10. Procédé, destiné à fabriquer des éléments en béton comportant les étapes suivantes, notamment par procédé de recirculation, consistant à :
    a) mettre à disposition une palette (1),
    b) appliquer des éléments de coffrage (2) sur la palette (1), au moins l'un des éléments de coffrage (2) comportant un élément de fixation (4) mobile par un actionneur (5) d'une position de libération ne débordant pas au-delà d'un segment de surface de coffrage (9) dans une position de maintien débordant au-delà du segment de surface de coffrage (9),
    c) déployer l'au moins un élément de fixation (4) de la position de libération dans la position de maintien,
    d) remplir de béton l'espace défini par la palette (1) et les éléments de coffrage (2),
    e) faire tourner la palette (1) après la solidification du béton, et
    f) tirer vers l'arrière l'au moins un élément de fixation (4) de la position de maintien dans la position de libération,
    caractérisé en qu'on en ce qu'on maintient l'élément de fixation (4) dans la position de maintien lorsqu'un capteur d'accélération détecte une accélération déterminée et/ou un capteur d'inclinaison détecte une orientation définie de la palette (1).
EP18197476.7A 2017-12-19 2018-09-28 Installation et procédé de production d'éléments en béton Active EP3533574B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017130572.6A DE102017130572A1 (de) 2017-12-19 2017-12-19 Anlage und Verfahren zur Herstellung von Betonelementen

Publications (2)

Publication Number Publication Date
EP3533574A1 EP3533574A1 (fr) 2019-09-04
EP3533574B1 true EP3533574B1 (fr) 2020-07-08

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EP18197476.7A Active EP3533574B1 (fr) 2017-12-19 2018-09-28 Installation et procédé de production d'éléments en béton

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DE (1) DE102017130572A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3939759B1 (fr) * 2020-07-17 2023-12-20 Sommer Anlagentechnik GmbH Dispositif de maintien permettant de fixer des composants en béton dans un moule
DE102022101624A1 (de) 2022-01-25 2023-07-27 Weckenmann Anlagentechnik Gmbh & Co. Kg Vorrichtung zur Herstellung von Beton-Fertigteilen

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DE1962529A1 (de) * 1969-12-12 1971-07-08 Georg Hubmann Vorrichtung zur Herstellung von mehrschichtigen Betonplatten
DD152931A1 (de) * 1980-09-05 1981-12-16 Wolfgang Rode Anlage zum befestigen,loesen und umruesten der schalungsteile von formen
FR2562465B1 (fr) * 1984-04-04 1986-08-08 Etude Realisa Elements Ste Gle Installation de prefabrication de panneaux de beton notamment pour parois de logements avec ouvertures
DE4001038A1 (de) * 1990-01-16 1991-07-18 Weckenmann Anlagentechnik Gmbh Kippbarer schaltisch, insbesondere fuer die fertigung zweischaltiger wandungselemente
DE19546886A1 (de) * 1995-12-15 1997-06-19 Rampf Formen Gmbh Form zur maschinellen Herstellung von Betonformkörpern
DE29701567U1 (de) * 1997-01-30 1997-03-27 Theodor Pieper GmbH & Co. KG, 57392 Schmallenberg Betonsteinautomat
DE102008060697B3 (de) 2008-12-08 2010-08-12 Vollert Anlagenbau Gmbh & Co. Kg Wendevorrichtung zur Herstellung doppelschaliger Bauteile
FI20105685A (fi) * 2010-06-15 2011-12-16 Elematic Group Oy Valumuotin laitayksikkö sekä laitayksikön irrotusyksikkö
WO2018171893A1 (fr) * 2017-03-24 2018-09-27 Sommer Anlagentechnik Gmbh Dispositif pour fixer des éléments de paroi en béton dans un coffrage

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DE102017130572A1 (de) 2019-06-19
EP3533574A1 (fr) 2019-09-04

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