EP1727656A1 - Installation and method for producing precast concrete parts - Google Patents

Installation and method for producing precast concrete parts

Info

Publication number
EP1727656A1
EP1727656A1 EP05716007A EP05716007A EP1727656A1 EP 1727656 A1 EP1727656 A1 EP 1727656A1 EP 05716007 A EP05716007 A EP 05716007A EP 05716007 A EP05716007 A EP 05716007A EP 1727656 A1 EP1727656 A1 EP 1727656A1
Authority
EP
European Patent Office
Prior art keywords
concrete
formwork
downpipe
liquid
pump
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
EP05716007A
Other languages
German (de)
French (fr)
Other versions
EP1727656B1 (en
Inventor
Max Schuran
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.)
Putzmeister Engineering GmbH
Original Assignee
Putzmeister AG
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 Putzmeister AG filed Critical Putzmeister AG
Publication of EP1727656A1 publication Critical patent/EP1727656A1/en
Application granted granted Critical
Publication of EP1727656B1 publication Critical patent/EP1727656B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C9/00—General arrangement or layout of plant
    • B28C9/04—General arrangement or layout of plant the plant being mobile, e.g. mounted on a carriage or a set of carriages
    • B28C9/0472—General arrangement or layout of plant the plant being mobile, e.g. mounted on a carriage or a set of carriages provided with two or more carriages for storing the ingredients or for the mixing device, e.g. transportable on rails
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0436—Devices for both conveying and distributing with distribution hose on a mobile support, e.g. truck
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms

Definitions

  • the invention relates to a system for the production of precast concrete parts with formwork arranged in a defined, upwardly open formwork, with a stationary concrete mixing plant arranged at a distance from the formwork and with a conveying device for the transport of liquid concrete from the concrete mixing plant into the formwork.
  • the invention further relates to a method for producing precast concrete parts, in which liquid concrete is conveyed from a stationary storage or mixing container to a formwork and introduced into the formwork.
  • the formworks located in a delimited production zone are usually filled with concrete buckets, which are fed with fresh concrete in a central concrete mixing plant and transported to the formworks via a crane distributor or a monorail.
  • This procedure leads to poor quality of the prefabricated elements due to the discontinuous filling and the segregation of the concrete during the container transport, especially with exposed concrete surfaces.
  • the production speed leaves something to be desired.
  • the object of the invention is to develop a system and a method for producing prefabricated concrete parts which ensures optimum quality of the end product at high production speeds.
  • a special feature of the invention is that the conveying device has a conveying unit that can be moved on a predefined roadway between the concrete mixing plant and the production zone, which has a moving concrete buffer mixer, a concrete feeding container that can be filled with liquid concrete via the concrete buffer mixer, a concrete pump connected to the concrete feeding container and an over carries a conveying line that is rotatable about a vertical axis relative to the conveying unit, the end of the conveying line ending in a downpipe hanging down at the top of the mast and immersed in the formwork from above, and the concrete placing boom and the concrete pump semi-automatically via control elements of a remote control can be operated.
  • the concrete placing boom according to the invention is expediently designed as an articulated mast.
  • the downpipe can either be rigid in itself or can be designed as a flexible end hose.
  • a computer-aided control device for the conveying operation of the conveying unit, which has a control routine responsive to output data of a conveying quantity counter for controlling articulated drives of the placing boom depending on the degree of filling of the formwork derived from the measured conveying quantity.
  • the control routine ensures that the downpipe carries out a lifting movement at a defined distance above or below the liquid level in the formwork at least over part of the formwork height. This procedure is particularly important for self-compacting concrete, in which the liquid concrete should always be poured into the formwork at a certain distance below the surface of the concrete filling. This ensures a uniform compaction of the concrete without segregation and air entry.
  • the height of the outlet point of the downpipe within the formwork is automatically determined by measuring the filling volume and by converting the filling height formula of the respective formwork.
  • the moving concrete pump is expediently a rotor pump operating according to the peristaltic principle. This enables a very precise volume determination by simply counting the rotor revolutions or parts of a revolution. This volume is then used together with the dimensions of the shape for height determination in the automatic upward control of the downpipe.
  • the volume determination during the pumping process also enables a filling level determination in the concrete buffer mixer, so that the liquid concrete can always be refilled in good time. This ensures that the concrete pump does not stand still during the entire concreting process.
  • the conveying device has a bucket conveyor or a bucket crane running along the route, so that concrete buckets for refilling liquid concrete can be moved into the concrete buffer mixer arranged on the conveying unit in accordance with the quantity delivered. The concrete from the buckets is homogenized in the concrete buffer mixer.
  • a further advantageous embodiment of the invention provides that the control device opens a position transmitter for the automatic positioning of the mobile conveyor unit with respect to the formwork to be loaded. has.
  • work is usually carried out in a hall with obstacles such as columns, cranes, supports, roof structures and the like.
  • the boundary contours of these obstacles can be read into the computer-aided control device and automatically taken into account when working with the concrete placing boom from any position of the conveyor unit along the rail route.
  • a special feature of the method according to the invention for the production of precast concrete parts, in which liquid concrete is conveyed from a stationary storage or mixing container to a formwork and introduced into the formwork, is that the liquid concrete is brought into the concrete formwork from above and below the surface of the current liquid concrete level immersed downpipe is inserted, and that the downpipe is raised when the liquid concrete level in the formwork rises.
  • the downpipe engages over the predominant part of the formwork height at the same distance below the liquid concrete level during the rise of the liquid concrete level.
  • the delivery rate of the liquid concrete introduced into the formwork is measured and the downpipe is automatically raised in accordance with the amount of liquid related to the cross-sectional area of the formwork.
  • a concrete placing boom designed as an articulated mast is expediently used, the downpipe being acted upon by liquid concrete via a concrete pump and a delivery line guided along the mast arms of the articulated mast.
  • Fig. 1 shows a detail from a plant for producing prefabricated concrete parts from a bird's eye view
  • Fig. 2 is a side view of the driving unit of the system of FIG. 1 during the concreting process.
  • the system shown in sections in the drawing is intended for the production of precast concrete parts.
  • the actual concreting process takes place in a delimited production zone 10, in which formwork 12 open at the top is arranged, the inner contour of which corresponds to the contour of the precast concrete part to be produced.
  • a reinforcement mesh not shown, is inserted into the formwork.
  • liquid concrete is introduced into the formwork 12 from above via the openings 14 in such a way that the reinforcement mesh is embedded in the concrete of the prefabricated part.
  • the liquid concrete is produced in a stationary concrete mixing plant, not shown in the drawing, and is brought into the formwork with a conveyor 16.
  • the conveying device 16 comprises a conveying unit 20 which is movable on rails 18, which has a moving concrete buffer mixer 22, a concrete feed container 24 which can be loaded with liquid concrete via the concrete buffer mixer 22, a concrete pump 26 connected to the concrete feed container and one from the concrete pump into the formwork 12 leading conveyor line 28 includes.
  • the conveying line is guided over a concrete placing boom 30 which can be rotated about a vertical axis 46 relative to the conveying unit 20 and which, in the exemplary embodiment shown, is designed as an articulated mast with three mast arms 31 ', 31 ", 31"'.
  • the delivery line 28 opens into a downpipe 32 hanging down on the mast tip 31, which dips into the formwork 12 from above during the concreting process.
  • the downpipe 32 can either be designed as a rigid tube or as a flexible end hose.
  • a computer-assisted control device 35 is provided, which has a remote control device 36 with at least one control lever and a software routine for moving the downpipe that responds to actuation signals from the control lever 38 32 via the articulated drives of the concrete placing boom 30.
  • the movement of the concrete placing boom 30 with the downpipe 32 takes place semi-automatically, the downpipe 32 in a first main direction of the control lever 38 a radial movement with respect to the mast rotation axis 40, in a second main direction a rotation about the mast rotation axis 40 and in a third main direction a lifting or Lowering movement for example within the formwork.
  • the control device 35 comprises a position transmitter for the automatic positioning of the mobile conveyor unit 20 along the rail track 18 with respect to the formwork 12 to be loaded.
  • a rotor pump operating on the principle of the peristaltic pump is expediently used as the concrete pump 26.
  • Such a pump contains a special hose arranged in a rotor housing, which is pressed together by the rotation of a rotor. The concrete in the hose is pushed towards the delivery line 28.
  • the rotor pump is quiet and quiet.
  • the flow rate can be regulated and measured at the same time over a wide range.
  • the downpipe 32 is inserted deep into the formwork 12 for concreting, so that the undesired addition of air into the liquid concrete is minimized.
  • the downpipe is constantly in the liquid concrete and is raised fully automatically with the filling process. This is particularly important when using self-compacting concrete.
  • Self-compacting concrete considerably simplifies concreting, since it is automatically distributed and vented in the formwork 12. This ensures high concrete quality with high concreting performance. Personnel-intensive rework, such as Cleaning, cutting and filling the finished elements are largely avoided when using self-compacting concrete.
  • a bucket track 42 is additionally provided, on which the concrete bucket 44 runs parallel to the rail section 18 from the stationary concrete mixing system can be moved to the current position of the conveyor unit 20.
  • the moving concrete buffer mixer 22 can thus be refilled with fresh concrete during pump operation, so that a continuous pouring process is possible, the batches introduced are homogenized and a high production speed can be achieved.
  • the concrete buffer mixer is refilled automatically.
  • the concrete placing boom 30 is controlled with the aid of a computer, so that the pump driver can concentrate fully on the surroundings and the filling of the formwork.
  • the downpipe 32 is automatically raised during the filling process with the liquid concrete level in the formwork.
  • the delivery line 28 is closed via a pinch valve in the area of the downpipe 32, so that the mast 30 can be moved to the next formwork 12.
  • any vibrations in the placing boom are dampened by suitable sensors and control software.
  • the conveyor unit 20 is electrically driven and rail-guided, so that the respective location of the machine can be positioned relative to the formwork 12.
  • Changing the type of concrete between two formworks is not a problem.
  • Hardly any residual concrete remains with the rotor pump used.
  • the pump driver inserts a sponge ball soaked in water into the concrete feed container 24.
  • the pump sucks in the sponge ball and conveys it to the downpipe 32.
  • the remaining concrete is pushed out of the pipeline with the sponge ball. At the same time, the system is cleaned.
  • the movable conveyor unit 20 is equipped with optical and / or acoustic monitoring devices. Redundant laser scanners, which are attached to the front and rear of the conveyor unit, are used for contactless monitoring of a freely programmable gramming security area. If there is an obstacle in the way, the mobile conveyor unit is stopped. Only when the obstacle has been removed does the laser scanner release the conveyor unit from driving again.
  • the invention relates to a system and a method for producing precast concrete parts, liquid concrete being conveyed from a stationary storage or mixing container to a formwork 12 and introduced into the formwork.
  • the system comprises a conveyor unit 20 which can be moved on a predetermined roadway 18 and which carries a traveling concrete mixer 22, a concrete pump 26 and a conveyor line 28 which opens into the formwork 12.
  • the delivery line is guided over a concrete placing boom 30 and opens into a downpipe 32 which is arranged at the top of the mast and can be inserted into the formwork 12.
  • the downpipe 32 can be raised automatically when the liquid concrete level in the formwork 12 rises.

Abstract

The invention relates to an installation and method for producing precast concrete parts during which liquid concrete is delivered from a stationary supply tank or mixing tank to a mold (12) into which the concrete is poured. The installation comprises a delivery unit (20), which can travel on a provided running path (18) and which carries a traveling concrete mixer (22), a concrete pump (26) and a delivery line (28) that discharges into the mold (12). The delivery line is guided via a concrete distributing boom (30) and discharges into a downpipe (32), which is mounted on the boom tip and can be introduced into the mold (12). The liquid concrete can be introduced under the surface of the actual level of liquid concrete inside the mold via the downpipe. In addition, the downpipe (32) can be automatically raised as the level of liquid concrete inside the mold (12) rises.

Description

Anlage und Verfahren zur Herstellung von BetonfertigteilenPlant and method for manufacturing precast concrete parts
Beschreibungdescription
Die Erfindung betrifft eine Anlage zur Herstellung von Betonfertigteilen mit in einer abgegrenzten Fertigungszone angeordneten, nach oben offenen Schalungen, mit einer im Abstand von den Schalungen angeordneten stationären Betonmischanlage und mit einer Fördereinrichtung für den Transport von Flüssigbeton von der Betonmischanlage in die Schalungen. Weiter betrifft die Erfindung ein Verfahren zur Herstellung von Betonfertigteilen, bei welchem Flüssigbeton von einem stationären Vorrats- oder Mischbehälter zu einer Schalung gefördert und in die Schalung eingebracht wird.The invention relates to a system for the production of precast concrete parts with formwork arranged in a defined, upwardly open formwork, with a stationary concrete mixing plant arranged at a distance from the formwork and with a conveying device for the transport of liquid concrete from the concrete mixing plant into the formwork. The invention further relates to a method for producing precast concrete parts, in which liquid concrete is conveyed from a stationary storage or mixing container to a formwork and introduced into the formwork.
Zur Herstellung von Betonfertigteilen werden die in einer abgegrenzten Ferti- gungszone befindlichen Schalungen üblicherweise mit Betonkübeln befüllt, die an einer zentralen Betonmischanlage mit Frischbeton beschickt und über einen Kranverteiler oder eine Hängebahn zu den Schalungen transportiert werden. Diese Verfahrensweise führt aufgrund der diskontinuierlichen Befül- lung und der Entmischung des Betons während des Kübeltransports beson- ders bei Sichtbetonflächen zu schlechter Qualität der Fertigelemente. Außerdem lässt die Produktionsgeschwindigkeit zu wünschen übrig.For the production of precast concrete parts, the formworks located in a delimited production zone are usually filled with concrete buckets, which are fed with fresh concrete in a central concrete mixing plant and transported to the formworks via a crane distributor or a monorail. This procedure leads to poor quality of the prefabricated elements due to the discontinuous filling and the segregation of the concrete during the container transport, especially with exposed concrete surfaces. In addition, the production speed leaves something to be desired.
Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, eine Anlage und ein Verfahren zur Herstellung von Betonfertigteilen zu entwickeln, das bei hoher Produktionsgeschwindigkeit eine optimale Qualität des Endprodukts gewährleistet.Proceeding from this, the object of the invention is to develop a system and a method for producing prefabricated concrete parts which ensures optimum quality of the end product at high production speeds.
Zur Lösung dieser Aufgabe werden die in den Patentansprüchen 1 und 12 angegebenen Merkmalskombinationen vorgeschlagen. Vorteilhafte Ausges- taltungen und Weiterbildungen der Erfindung ergeben sich aus den Unteransprüchen. Eine Besonderheit der Erfindung besteht darin, dass die Fördereinrichtung eine auf einer vorgegebenen Fahrbahn zwischen der Betonmischanlage und der Fertigungszone verfahrbare Fördereinheit aufweist, die einen mitfahrenden Betonpuffermischer, einen über den Betonpuffermischer mit Flüssigbe- ton beschickbaren Betonaufgabebehälter, eine an den Betonaufgabebehälter angeschlossene Betonpumpe und eine über einen gegenüber der Fördereinheit um einer Vertikalachse drehbaren Betonverteilermast geführte Förderleitung trägt, wobei die Förderleitung an ihrem Ende in ein an der Mastspitze nach unten hängendes, in die Schalung von oben her eintau- chendes Fallrohr mündet und der Betonverteilermast und die Betonpumpe über Steuerorgane einer Fernbedienung halbautomatisch betätigbar sind. Der erfindungsgemäße Betonverteilermast ist zweckmäßig als Knickmast ausgebildet. Das Fallrohr kann entweder in sich steif oder als biegsamer Endschlauch ausgebildet sein.To achieve this object, the combinations of features specified in claims 1 and 12 are proposed. Advantageous refinements and developments of the invention result from the subclaims. A special feature of the invention is that the conveying device has a conveying unit that can be moved on a predefined roadway between the concrete mixing plant and the production zone, which has a moving concrete buffer mixer, a concrete feeding container that can be filled with liquid concrete via the concrete buffer mixer, a concrete pump connected to the concrete feeding container and an over carries a conveying line that is rotatable about a vertical axis relative to the conveying unit, the end of the conveying line ending in a downpipe hanging down at the top of the mast and immersed in the formwork from above, and the concrete placing boom and the concrete pump semi-automatically via control elements of a remote control can be operated. The concrete placing boom according to the invention is expediently designed as an articulated mast. The downpipe can either be rigid in itself or can be designed as a flexible end hose.
Gemäß einer bevorzugten Ausgestaltung der Erfindung ist eine computergestützte Steuereinrichtung für den Förderbetrieb der Fördereinheit vorgesehen, die eine auf Ausgangsdaten eines Fördermengenzählers ansprechende Steuerroutine zur Ansteuerung von Gelenkantrieben des Verteilermasts in Abhängigkeit von dem aus der gemessenen Fördermenge abgeleiteten Füllgrad der Schalung aufweist. Die Steuerroutine sorgt dafür, dass das Fallrohr zumindest über einen Teil der Schalungshöhe eine Hubbewegung in definiertem Abstand über oder unter dem Flüssigkeitsspiegel in der Schalung ausführt. Diese Verfahrensweise ist besonders bei selbstverdichtendem Be- ton von Bedeutung, bei welchem der Flüssigbeton stets in einem bestimmten Abstand unter der Oberfläche der Betonfüllung in die Schalung eingefüllt werden sollte. Damit wird eine gleichmäßige Verdichtung des Betons ohne Entmischungserscheinungen und Lufteintrag erzielt. Die Höhe der Austrittsstelle des Fallrohrs innerhalb der Schalung wird dabei automatisch durch Messung des Füllvolumens und durch Umrechnung über die Füllhöhenformel der jeweiligen Schalung bestimmt. Bei den relativ niedrigen Viskositäten von selbstverdichtendem Flüssigbeton ist es nicht notwendig, das Fallrohr während des Betoniervorgangs innerhalb der Form quer zu verfahren. Der Beton füllt vielmehr annähernd gleichmäßig die Form aus, so dass über den gesamten Schalungsquerschnitt eine konstante Höhenzunahme erfolgt. Grundsätzlich ist es jedoch auch möglich, das Fallrohr während des Beto- niervorgangs entlang der Formkontur beispielsweise mit Hilfe einer Fernbedienung zu bewegen. Dies kann bei zähflüssigen Betonsorten notwendig sein, setzt jedoch voraus, dass etwaige Bewehrungsstrukturen innerhalb der Schalung eine entsprechende Verschiebung des Fallrohrs zulassen. In vielen Fällen befindet sich nämlich innerhalb der Schalung ein Bewehrungsnetz, das vom Pumpenbediener beim Einfüllvorgang berücksichtigt werden muss.According to a preferred embodiment of the invention, a computer-aided control device for the conveying operation of the conveying unit is provided, which has a control routine responsive to output data of a conveying quantity counter for controlling articulated drives of the placing boom depending on the degree of filling of the formwork derived from the measured conveying quantity. The control routine ensures that the downpipe carries out a lifting movement at a defined distance above or below the liquid level in the formwork at least over part of the formwork height. This procedure is particularly important for self-compacting concrete, in which the liquid concrete should always be poured into the formwork at a certain distance below the surface of the concrete filling. This ensures a uniform compaction of the concrete without segregation and air entry. The height of the outlet point of the downpipe within the formwork is automatically determined by measuring the filling volume and by converting the filling height formula of the respective formwork. With the relatively low viscosities of self-compacting liquid concrete, the downpipe is not necessary to move transversely within the mold during the concreting process. Rather, the concrete fills the shape almost uniformly, so that there is a constant increase in height across the entire formwork cross-section. In principle, however, it is also possible to move the downpipe along the shape contour during the concreting process, for example using a remote control. This can be necessary for viscous types of concrete, but presupposes that any reinforcement structures within the formwork allow the downpipe to be shifted accordingly. In many cases there is a reinforcement mesh inside the formwork, which the pump operator must take into account during the filling process.
Die mitfahrende Betonpumpe ist zweckmäßig eine nach dem Peristaltikprin- zip arbeitende Rotorpumpe. Diese ermöglicht eine sehr genaue Volumenbestimmung durch einfaches Zählen der Rotorumdrehungen oder von Teilen einer Umdrehung. Dieses Volumen wird dann zusammen mit den Maßen der Form zur Höhenbestimmung bei der automatischen Hochsteuerung des Fallrohrs benutzt.The moving concrete pump is expediently a rotor pump operating according to the peristaltic principle. This enables a very precise volume determination by simply counting the rotor revolutions or parts of a revolution. This volume is then used together with the dimensions of the shape for height determination in the automatic upward control of the downpipe.
Die Volumenbestimmung beim Pumpvorgang ermöglicht auch eine Füll- Standsbestimmung im Betonpuffermischer, so dass der Flüssigbeton immer rechtzeitig nachgefüllt werden kann. Dadurch kann erreicht werden, dass die Betonpumpe während des gesamten Betoniervorgangs nicht stillsteht. Die Fördereinrichtung weist zu diesem Zweck eine entlang der Fahrstrecke verlaufende Kübelbahn oder einen Kübelkran auf, so dass Betonkübel zum Nachfüllen von Flüssigbeton in den auf der Fördereinheit angeordneten Betonpuffermischer nach Maßgabe der ausgebrachten Fördermenge verfahrbar sind. Der Beton aus den Kübeln wird im Betonpuffermischer homogenisiert.The volume determination during the pumping process also enables a filling level determination in the concrete buffer mixer, so that the liquid concrete can always be refilled in good time. This ensures that the concrete pump does not stand still during the entire concreting process. For this purpose, the conveying device has a bucket conveyor or a bucket crane running along the route, so that concrete buckets for refilling liquid concrete can be moved into the concrete buffer mixer arranged on the conveying unit in accordance with the quantity delivered. The concrete from the buckets is homogenized in the concrete buffer mixer.
Eine weitere vorteilhafte Ausgestaltung der Erfindung sieht vor, dass die Steuereinrichtung einen Positionsgeber zur automatischen Positionierung der fahrbaren Fördereinheit bezüglich der zu beschickenden Schalung auf- weist. Beim Betonieren von Fertigteilen wird üblicherweise in einer Halle gearbeitet, in der sich Hindernisse, wie Säulen, Kräne, Stützen, Dachkonstruktionen und dergleichen befinden. Die Grenzkonturen dieser Hindernisse können in die computergestützte Steuereinrichtung eingelesen und beim Ar- beiten mit dem Betonverteilermast von jeder Position der Fördereinheit entlang der Schienenstrecke aus automatisch berücksichtigt werden.A further advantageous embodiment of the invention provides that the control device opens a position transmitter for the automatic positioning of the mobile conveyor unit with respect to the formwork to be loaded. has. When concreting finished parts, work is usually carried out in a hall with obstacles such as columns, cranes, supports, roof structures and the like. The boundary contours of these obstacles can be read into the computer-aided control device and automatically taken into account when working with the concrete placing boom from any position of the conveyor unit along the rail route.
Eine Besonderheit des erfindungsgemäßen Verfahrens zur Herstellung von Betonfertigteilen, bei welchem Flüssigbeton von einem stationären Vorrats- oder Mischbehälter zu einer Schalung gefördert und in die Schalung eingebracht wird, besteht darin, dass der Flüssigbeton über ein von oben in die Betonschalung unter die Oberfläche des momentanen Flussigbetonspiegels eintauchendes Fallrohr eingebracht wird, und dass das Fallrohr beim Anstieg des Flussigbetonspiegels in der Schalung angehoben wird. Vorteilhafterwei- se greift das Fallrohr während des Anstiegs des Flussigbetonspiegels über den überwiegenden Teil der Schalungshöhe gleich weit unter den Flüssigbetonspiegel ein. Um dies zu ermöglichen, wird gemäß einer bevorzugten Ausgestaltung der Erfindung die Fördermenge des in die Schalung eingebrachten Flüssigbetons gemessen und das Fallrohr nach Maßgabe der auf die Querschnittsfläche der Schalung bezogenen Flüssigkeitsmenge selbsttätig angehoben. Zum Anheben des Fallrohrs wird zweckmäßig ein als Knickmast ausgebildeter Betonverteilermast verwendet, wobei das Fallrohr über eine Betonpumpe und eine entlang den Mastarmen des Knickmasts geführte Förderleitung mit Flüssigbeton beaufschlagt wird.A special feature of the method according to the invention for the production of precast concrete parts, in which liquid concrete is conveyed from a stationary storage or mixing container to a formwork and introduced into the formwork, is that the liquid concrete is brought into the concrete formwork from above and below the surface of the current liquid concrete level immersed downpipe is inserted, and that the downpipe is raised when the liquid concrete level in the formwork rises. Advantageously, the downpipe engages over the predominant part of the formwork height at the same distance below the liquid concrete level during the rise of the liquid concrete level. To make this possible, according to a preferred embodiment of the invention, the delivery rate of the liquid concrete introduced into the formwork is measured and the downpipe is automatically raised in accordance with the amount of liquid related to the cross-sectional area of the formwork. To lift the downpipe, a concrete placing boom designed as an articulated mast is expediently used, the downpipe being acted upon by liquid concrete via a concrete pump and a delivery line guided along the mast arms of the articulated mast.
Im Folgenden wird die Erfindung anhand eines in der Zeichnung in schema- tischer Weise dargestellten Ausführungsbeispiels näher erläutert. Es zeigenThe invention is explained in more detail below on the basis of an exemplary embodiment shown schematically in the drawing. Show it
Fig. 1 einen Ausschnitt aus einer Anlage zur Herstellung von Betonfer- tigteilen aus der Sicht der Vogelperspektive; Fig. 2 eine Seitenansicht der Fahreinheit der Anlage nach Fig. 1 während des Betoniervorgangs.1 shows a detail from a plant for producing prefabricated concrete parts from a bird's eye view; Fig. 2 is a side view of the driving unit of the system of FIG. 1 during the concreting process.
Die in der Zeichnung ausschnittsweise dargestellte Anlage ist zur Herstellung von Betonfertigteilen bestimmt. Der eigentliche Betoniervorgang erfolgt in einer abgegrenzten Fertigungszone 10, in welcher nach oben offene Schalungen 12 angeordnet sind, deren Innenkontur der Kontur des herzustellenden Betonfertigteils entspricht. Vor jedem Betoniervorgang wird in die Schalung ein nicht dargestelltes Bewehrungsnetz eingesetzt. Beim Betoniervor- gang wird Flüssigbeton von oben her über die Öffnungen 14 in die Schalungen 12 so eingebracht, dass das Bewehrungsnetz in den Beton des Fertigteils eingebettet wird.The system shown in sections in the drawing is intended for the production of precast concrete parts. The actual concreting process takes place in a delimited production zone 10, in which formwork 12 open at the top is arranged, the inner contour of which corresponds to the contour of the precast concrete part to be produced. Before each concreting process, a reinforcement mesh, not shown, is inserted into the formwork. During the concreting process, liquid concrete is introduced into the formwork 12 from above via the openings 14 in such a way that the reinforcement mesh is embedded in the concrete of the prefabricated part.
Der Flüssigbeton wird in einer in der Zeichnung nicht dargestellten stationä- ren Betonmischanlage hergestellt und mit einer Fördereinrichtung 16 in die Schalungen verbracht. Bei dem gezeigten Ausführungsbeispiel umfasst die Fördereinrichtung 16 eine auf Schienen 18 verfahrbare Fördereinheit 20, die einen mitfahrenden Betonpuffermischer 22, einen über den Betonpuffermi- scher 22 mit Flüssigbeton beaufschlagbaren Betonaufgabebehälter 24, eine an den Betonaufgabebehälter angeschlossene Betonpumpe 26 und eine von der Betonpumpe in die Schalung 12 führende Förderleitung 28 umfasst. Die Förderleitung ist über einen gegenüber der Fördereinheit 20 um eine Vertikalachse 46 drehbaren Betonverteilermast 30 geführt, der bei dem gezeigten Ausführungsbeispiel als Knickmast mit drei Mastarmen 31', 31 ",31"' ausge- bildet ist. An ihrem Ende mündet die Förderleitung 28 in ein an der Mastspitze 31 nach unten hängendes Fallrohr 32, das beim Betoniervorgang von o- ben her in die Schalung 12 eintaucht. Das Fallrohr 32 kann entweder als starres Rohr oder als biegsamer Endschlauch ausgebildet sein. Zur Ansteue- rung der Fördereinheit 20 während des Förderbetriebs ist eine computerge- stützte Steuereinrichtung 35 vorgesehen, die ein Fernbedienungsgerät 36 mit mindestens einem Steuerhebel sowie eine auf Betätigungssignale des Steuerhebels 38 ansprechende Softwareroutine zur Bewegung des Fallrohrs 32 über die Gelenkantriebe des Betonverteilermasts 30 aufweist. Die Bewegung des Betonverteilermasts 30 mit Fallrohr 32 erfolgt halbautomatisch, wobei das Fallrohr 32 in einer ersten Hauptrichtung des Steuerhebels 38 eine bezüglich der Mastdrehachse 40 radiale Bewegung, in einer zweiten Hauptrichtung eine um die Mastdrehachse 40 drehende Bewegung und in einer dritten Hauptrichtung eine Hub- oder Senkbewegung beispielsweise innerhalb der Schalung ausführt. Außerdem umfasst die Steuereinrichtung 35 einen Positionsgeber zur automatischen Positionierung der fahrbaren Fördereinheit 20 entlang der Schienenstrecke 18 bezüglich der zu beschi- ckenden Schalungen 12.The liquid concrete is produced in a stationary concrete mixing plant, not shown in the drawing, and is brought into the formwork with a conveyor 16. In the exemplary embodiment shown, the conveying device 16 comprises a conveying unit 20 which is movable on rails 18, which has a moving concrete buffer mixer 22, a concrete feed container 24 which can be loaded with liquid concrete via the concrete buffer mixer 22, a concrete pump 26 connected to the concrete feed container and one from the concrete pump into the formwork 12 leading conveyor line 28 includes. The conveying line is guided over a concrete placing boom 30 which can be rotated about a vertical axis 46 relative to the conveying unit 20 and which, in the exemplary embodiment shown, is designed as an articulated mast with three mast arms 31 ', 31 ", 31"'. At its end, the delivery line 28 opens into a downpipe 32 hanging down on the mast tip 31, which dips into the formwork 12 from above during the concreting process. The downpipe 32 can either be designed as a rigid tube or as a flexible end hose. To control the conveyor unit 20 during the conveyor operation, a computer-assisted control device 35 is provided, which has a remote control device 36 with at least one control lever and a software routine for moving the downpipe that responds to actuation signals from the control lever 38 32 via the articulated drives of the concrete placing boom 30. The movement of the concrete placing boom 30 with the downpipe 32 takes place semi-automatically, the downpipe 32 in a first main direction of the control lever 38 a radial movement with respect to the mast rotation axis 40, in a second main direction a rotation about the mast rotation axis 40 and in a third main direction a lifting or Lowering movement for example within the formwork. In addition, the control device 35 comprises a position transmitter for the automatic positioning of the mobile conveyor unit 20 along the rail track 18 with respect to the formwork 12 to be loaded.
Als Betonpumpe 26 wird zweckmäßig eine nach dem Prinzip der Peristaltik- pumpe arbeitende Rotorpumpe verwendet. Eine solche Pumpe enthält einen in einem Rotorgehäuse angeordneten Spezialschlauch, der durch die Dre- hung eines Rotors zusammengepresst wird. Dabei wird der Beton im Schlauch in Richtung Förderleitung 28 geschoben. Die Rotorpumpe ist leise und laufruhig. Die Fördermenge kann in einem weiten Bereich stufenlos über die Umdrehungszahl geregelt und zugleich gemessen werden. Das Fallrohr 32 wird zum Betonieren tief in die Schalung 12 eingefahren, so dass die un- erwünschte Zugabe von Luft in den Flüssigbeton minimiert wird. Das Fallrohr steckt dabei ständig im Flüssigbeton und wird vollautomatisch mit dem Füllvorgang angehoben. Dies ist besonders bei Verwendung von selbstverdichtendem Beton wichtig. Selbstverdichtender Beton vereinfacht das Betonieren erheblich, da er sich selbsttätig in der Schalung 12 verteilt und entlüftet. Dies stellt eine hohe Betonqualität bei gleichzeitig hoher Betonierleistung sicher. Personalintensive Nacharbeiten, wie z.B. Säubern, Schneiden, Spachteln der Fertigelemente, werden bei Verwendung von selbstverdichtendem Beton weitgehend vermieden.A rotor pump operating on the principle of the peristaltic pump is expediently used as the concrete pump 26. Such a pump contains a special hose arranged in a rotor housing, which is pressed together by the rotation of a rotor. The concrete in the hose is pushed towards the delivery line 28. The rotor pump is quiet and quiet. The flow rate can be regulated and measured at the same time over a wide range. The downpipe 32 is inserted deep into the formwork 12 for concreting, so that the undesired addition of air into the liquid concrete is minimized. The downpipe is constantly in the liquid concrete and is raised fully automatically with the filling process. This is particularly important when using self-compacting concrete. Self-compacting concrete considerably simplifies concreting, since it is automatically distributed and vented in the formwork 12. This ensures high concrete quality with high concreting performance. Personnel-intensive rework, such as Cleaning, cutting and filling the finished elements are largely avoided when using self-compacting concrete.
Um eine kontinuierliche Beschickung der Schalungen 12 mit Beton gewährleisten zu können, ist zusätzlich eine Kübelbahn 42 vorgesehen, auf der Betonkübel 44 parallel zur Schienenstrecke 18 von der stationären Beton- mischanlage zur augenblicklichen Position der Fördereinheit 20 verfahren werden können. Damit kann der mitfahrende Betonpuffermischer 22 während des Pumpbetriebs mit Frischbeton nachgefüllt werden, so dass ein kontinuierlicher Betoniervorgang möglich ist, die eingebrachten Chargen homo- genisiert werden und eine hohe Produktionsgeschwindigkeit erzielt werden kann. Das Nachfüllen des Betonpuffermischers erfolgt automatisch. Außerdem wird der Betonverteilermast 30 rechnergestützt gesteuert, so dass sich der Pumpenfahrer voll auf das Umfeld und die Befüllung der Schalung konzentrieren kann. Insbesondere wird das Fallrohr 32 während des Füllvor- gangs selbsttätig mit dem Flüssigbetonspiegel in der Schalung angehoben. Ist eine Schalung vollständig gefüllt, wird die Förderleitung 28 über ein Quetschventil im Bereich des Fallrohrs 32 geschlossen, so dass der Mast 30 zur nächsten Schalung 12 gefahren werden kann. In allen Stellungen und unabhängig von der Fördermenge werden etwaige Schwingungen des Ver- teilermasts durch eine geeignete Sensorik und Regelungs-Software gedämpft.In order to be able to ensure continuous loading of the formwork 12 with concrete, a bucket track 42 is additionally provided, on which the concrete bucket 44 runs parallel to the rail section 18 from the stationary concrete mixing system can be moved to the current position of the conveyor unit 20. The moving concrete buffer mixer 22 can thus be refilled with fresh concrete during pump operation, so that a continuous pouring process is possible, the batches introduced are homogenized and a high production speed can be achieved. The concrete buffer mixer is refilled automatically. In addition, the concrete placing boom 30 is controlled with the aid of a computer, so that the pump driver can concentrate fully on the surroundings and the filling of the formwork. In particular, the downpipe 32 is automatically raised during the filling process with the liquid concrete level in the formwork. If a formwork is completely filled, the delivery line 28 is closed via a pinch valve in the area of the downpipe 32, so that the mast 30 can be moved to the next formwork 12. In all positions and regardless of the delivery rate, any vibrations in the placing boom are dampened by suitable sensors and control software.
Die Fördereinheit 20 ist elektrisch angetrieben und schienengeführt, so dass der jeweilige Standort der Maschine relativ zur Schalung 12 positionierbar ist. Ein Wechsel der Betonsorte zwischen zwei Schalungen ist dabei kein Problem. Bei der verwendeten Rotorpumpe bleibt kaum Restbeton übrig. Um restlichen Beton aus der Pumpe und der Förderleitung in die Schalung 12 zu fördern, führt der Pumpenfahrer eine mit Wasser vollgesaugte Schwammkugel in den Betonaufgabebehälter 24 ein. Die Pumpe saugt die Schwammku- gel ein und fördert sie bis zum Fallrohr 32. Mit der Schwammkugel wird der restliche Beton aus der Rohrleitung herausgeschoben. Gleichzeitig wird das System gesäubert.The conveyor unit 20 is electrically driven and rail-guided, so that the respective location of the machine can be positioned relative to the formwork 12. Changing the type of concrete between two formworks is not a problem. Hardly any residual concrete remains with the rotor pump used. In order to convey residual concrete from the pump and the delivery line into the formwork 12, the pump driver inserts a sponge ball soaked in water into the concrete feed container 24. The pump sucks in the sponge ball and conveys it to the downpipe 32. The remaining concrete is pushed out of the pipeline with the sponge ball. At the same time, the system is cleaned.
Zur Sicherheit in der Werkshalle ist die verfahrbare Fördereinheit 20 mit opti- sehen und/oder akustischen Überwachungsvorrichtungen ausgestattet. Redundante Laserscanner, die vorne und hinten an der Fördereinheit angebracht sind, dienen zur berührungslosen Überwachung einer frei zu pro- grammierenden Sicherheitsfläche. Steht ein Hindernis im Weg, wird die fahrbare Fördereinheit gestoppt. Erst wenn das Hindernis beseitigt ist, gibt der Laserscanner den Fahrbetrieb der Fördereinheit wieder frei.For safety in the factory hall, the movable conveyor unit 20 is equipped with optical and / or acoustic monitoring devices. Redundant laser scanners, which are attached to the front and rear of the conveyor unit, are used for contactless monitoring of a freely programmable gramming security area. If there is an obstacle in the way, the mobile conveyor unit is stopped. Only when the obstacle has been removed does the laser scanner release the conveyor unit from driving again.
Zusammenfassend ist folgendes festzuhalten: Die Erfindung bezieht sich auf eine Anlage und ein Verfahren zur Herstellung von Betonfertigteilen, wobei Flüssigbeton von einem stationären Vorrats- oder Mischbehälter zu einer Schalung 12 gefördert und in die Schalung eingebracht wird. Die Anlage umfasst eine auf einer vorgegebenen Fahrbahn 18 verfahrbare Fördereinheit 20, die einen mitfahrenden Betonmischer 22 eine Betonpumpe 26 und eine in die Schalung 12 mündende Förderleitung 28 trägt. Die Förderleitung ist dabei über einen Betonverteilermast 30 geführt und mündet in ein Fallrohr 32, das an der Mastspitze angeordnet und in die Schalung 12 einführbar ist. Mit dem Fallrohr kann der Flüssigbeton unter die Oberfläche des momenta- nen Flussigbetonspiegels in der Schalung eingebracht werden. Außerdem kann das Fallrohr 32 beim Anstieg des Flussigbetonspiegels in der Schalung 12selbsttätig angehoben werden. In summary, the following can be stated: The invention relates to a system and a method for producing precast concrete parts, liquid concrete being conveyed from a stationary storage or mixing container to a formwork 12 and introduced into the formwork. The system comprises a conveyor unit 20 which can be moved on a predetermined roadway 18 and which carries a traveling concrete mixer 22, a concrete pump 26 and a conveyor line 28 which opens into the formwork 12. The delivery line is guided over a concrete placing boom 30 and opens into a downpipe 32 which is arranged at the top of the mast and can be inserted into the formwork 12. With the downpipe, the liquid concrete can be placed under the surface of the current liquid concrete level in the formwork. In addition, the downpipe 32 can be raised automatically when the liquid concrete level in the formwork 12 rises.

Claims

Patentansprüche claims
1. Anlage zur Herstellung von Betonfertigteilen mit in einer Fertigungszone (10) angeordneten, nach oben offenen Schalungen (12), mit einer im Abstand von den Schalungen angeordneten stationären Betonmischanlage und mit einer Fördereinrichtung (16) für den Transport von Flüssigbeton von der Betonmischanlage in die Schalungen (12), dadurch gekennzeichnet, dass die Fördereinrichtung (16) eine auf einer vorgegebenen Fahrbahn (18) zwischen der Betonmischanlage und der Fertigungszone (10) sowie entlang der Fertigungszone verfahrbare Fördereinheit (20) aufweist, die einen mitfahrenden Betonpuffermischer (22), einen über den Betonmischer mit Flüssigbeton beschickbaren Betonaufgabebehälter (24), eine an den Betonaufgabebehälter (24) angeschlossene Betonpumpe (26) und eine über einen gegenüber der fahr- baren Fördereinheit (20) um eine Vertikalachse (40) drehbaren Betonverteilermast (30) geführte Förderleitung (28) trägt, wobei die Förderleitung an ihrem Ende ein an der Mastspitze (31) nach unten hängendes, in die Schalung von oben her eintauchendes Fallrohr (32) mündet und der Betonverteilermast (30) und die Betonpumpe (26) über Steuerorga- ne (38) einer Fernbedienung (36) halbautomatisch betätigbar sind.1. Plant for the production of precast concrete parts with formworks (12) arranged in a production zone (10), with an open top, with a stationary concrete mixing plant arranged at a distance from the formworks and with a conveyor (16) for the transport of liquid concrete from the concrete mixing plant in the formwork (12), characterized in that the conveying device (16) has a conveying unit (20) which can be moved on a predetermined roadway (18) between the concrete mixing plant and the production zone (10) and along the production zone and which has a moving concrete buffer mixer (22) , a concrete feed container (24) which can be filled with liquid concrete via the concrete mixer, a concrete pump (26) connected to the concrete feed container (24) and a concrete placing boom (30) which is rotatable about a vertical axis (40) relative to the mobile delivery unit (20) Delivery line (28) carries, the delivery line at its end on the mast spit The downpipe (32) hanging downwards and immersed in the formwork from above opens out and the concrete placing boom (30) and the concrete pump (26) can be operated semi-automatically via control elements (38) of a remote control (36).
2. Anlage nach Anspruch 1 , dadurch gekennzeichnet, dass der Betonverteilermast (30) als Knickmast ausgebildet ist.2. Plant according to claim 1, characterized in that the concrete placing boom (30) is designed as an articulated mast.
3. Anlage nach Anspruch 1 , gekennzeichnet durch eine computergestützte Steuereinrichtung (35) für den Förderbetrieb der fahrbaren Fördereinheit (20) mit einer auf Ausgangsdaten eines Fördermengenzählers ansprechende Steuerroutine zur Ansteuerung von Gelenkantrieben des Betonverteilermasts (30) in Abhängigkeit von dem aus der gemes- senen Fördermenge abgeleiteten Füllgrad der Schalung, die so programmiert ist, dass das Fallrohr (32) zumindest über einen Teil der Schalungshöhe eine Hubbewegung in definiertem Abstand über oder unter dem Flüssigbetonspiegel in der Schalung ausführt.3. System according to claim 1, characterized by a computer-aided control device (35) for the conveying operation of the mobile conveying unit (20) with a control routine responsive to output data of a conveying quantity counter for controlling articulated drives of the concrete placing boom (30) depending on the one measured Flow rate derived fill level of the formwork, which is programmed so that the downpipe (32) over at least part of the Formwork height executes a lifting movement at a defined distance above or below the liquid concrete level in the formwork.
4. Anlage nach einem der Ansprüche 1 oder 3, dadurch gekennzeich- net, dass die Betonpumpe (26) eine nach dem Prinzip der Peristaltik- pumpe arbeitende Rotorpumpe ist.4. Plant according to one of claims 1 or 3, characterized in that the concrete pump (26) is a rotor pump operating on the principle of the peristaltic pump.
5. Anlage nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der in der Fördereinheit (20) transportierte Beton als selbstver- dichtender Beton ausgebildet ist.5. Plant according to one of claims 1 to 4, characterized in that the concrete transported in the conveyor unit (20) is designed as self-compacting concrete.
6. Anlage nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Steuereinrichtung (35) ein Fernbedienungsgerät (36) mit mindestens einem Steuerhebel (38) sowie eine auf Betätigungssignale des Steuerhebels ansprechende Softwareroutine zur Bewegung des Fallrohrs (32) über Gelenkantriebe des Betonverteilermasts (30) aufweist, wobei das Fallrohr (32) in einer ersten Hauptrichtung des Steuerhebels (38) eine bezüglich der Mastdrehachse (40) radiale Bewegung, in einer zweiten Hauptrichtung eine um die Mastdrehachse (40) drehende Be- wegung und in einer dritten Hauptrichtung eine Hub- oder Senkbewegung ausführt.6. System according to one of claims 1 to 5, characterized in that the control device (35) a remote control device (36) with at least one control lever (38) and a software routine responsive to actuation signals of the control lever for moving the downpipe (32) via articulated drives of the Concrete placing booms (30), the down pipe (32) in a first main direction of the control lever (38) a radial movement with respect to the mast axis of rotation (40), in a second main direction a movement rotating about the mast axis of rotation (40) and in a third Main direction carries out a lifting or lowering movement.
7. Anlage nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Steuereinrichtung (35) einen Positionsgeber zur automati- sehen Positionierung der fahrbaren Fördereinheit (20) bezüglich der zu beschickenden Schalung (12) aufweist.7. Plant according to one of claims 1 to 6, characterized in that the control device (35) has a position transmitter for the automatic positioning of the mobile conveyor unit (20) with respect to the formwork (12) to be loaded.
8. Anlage nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Fördereinrichtung (16) zusätzlich eine entlang der Fahrbahn (18) verlaufende Kübelbahn (42) aufweist, und dass auf der Kübelbahn Betonkübel (44) zum Nachfüllen von Flüssigbeton in den auf der För- dereinheit (20) angeordneten Betonmischer (22) nach Maßgabe der ausgebrachten Fördermenge verfahrbar sind.8. Plant according to one of claims 1 to 7, characterized in that the conveying device (16) additionally has a bucket track (42) running along the carriageway (18), and that on the bucket track concrete buckets (44) for refilling liquid concrete into the on the the concrete mixer (22) arranged in the unit (20) can be moved in accordance with the delivered delivery quantity.
9. Anlage nach Anspruch 8, dadurch gekennzeichnet, dass die Kübel- bahn (42) als Hängebahn und die Betonkübel (44) als Hängekübel ausgebildet sind.9. Plant according to claim 8, characterized in that the bucket conveyor (42) is designed as a hanging conveyor and the concrete bucket (44) as a hanging bucket.
10. Anlage nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Fahrbahn (18) als Schienenstrecke und die Fördereinheit (20) als Schienenfahrzeug ausgebildet sind.10. Installation according to one of claims 1 to 9, characterized in that the roadway (18) is designed as a rail section and the conveyor unit (20) as a rail vehicle.
11. Anlage nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass das Fallrohr (30) als biegsamer Endschlauch ausgebildet ist.11. Plant according to one of claims 1 to 10, characterized in that the downpipe (30) is designed as a flexible end hose.
12. Verfahren zur Herstellung von Betonfertigteilen, bei welchem Flüssigbeton von einem stationären Vorrats- oder Mischbehälter zu einer Schalung (12) gefördert und in die Schalung eingebracht wird, dadurch gekennzeichnet, dass der Flüssigbeton über ein von oben in die Betonschalung (12) unter die Oberfläche des momentanen Flüssigbetonspie- gels eintauchendes Fallrohr (32) eingebracht wird.12. A method for the production of precast concrete, in which liquid concrete is conveyed from a stationary storage or mixing container to a formwork (12) and introduced into the formwork, characterized in that the liquid concrete is from above into the concrete formwork (12) under the Down pipe (32) immersing the surface of the current liquid concrete mirror.
13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass das Fallrohr (32) bei Anstieg des Flussigbetonspiegels in der Schalung angehoben wird.13. The method according to claim 12, characterized in that the downpipe (32) is raised when the liquid concrete level in the formwork rises.
14. Verfahren nach einem der Ansprüche 12 oder 13, dadurch gekennzeichnet, dass das Fallrohr (32) während des Anstiegs des Flussigbetonspiegels über den überwiegenden Teil der Schalungshöhe gleich weit unter den Flüssigbetonspiegel eingreift.14. The method according to any one of claims 12 or 13, characterized in that the downpipe (32) engages during the rise of the liquid concrete level over the major part of the formwork height equally far below the liquid concrete level.
15. Verfahren nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass die Fördermenge des in die Schalung (12) eingebrach- ten Flüssigbetons gemessen und das Fallrohr (32) nach Maßgabe der auf die Querschnittsfläche der Schalung bezogenen Flüssigkeitsmenge selbsttätig angehoben wird.15. The method according to any one of claims 12 to 14, characterized in that the flow rate of the in the formwork (12) introduced ten liquid concrete measured and the downpipe (32) is raised automatically in accordance with the amount of liquid related to the cross-sectional area of the formwork.
16. Verfahren nach einem der Ansprüche 12 bis 15, dadurch gekennzeichnet, dass das Fallrohr (32) beim Einfüllvorgang mittels eines als Knickmast ausgebildeten Betonverteilermasts (30) angehoben wird.16. The method according to any one of claims 12 to 15, characterized in that the downpipe (32) is raised during the filling process by means of a concrete placing boom (30) designed as an articulated mast.
17. Verfahren nach einem der Ansprüche 12 bis 16, dadurch gekenn- zeichnet, dass das Fallrohr (32) über eine Betonpumpe (26) und eine entlang den Mastarmen eines Knickmasts geführte Förderleitung (28) mit Flüssigbeton beaufschlagt wird. 17. The method according to any one of claims 12 to 16, characterized in that the downpipe (32) via a concrete pump (26) and a conveying line (28) guided along the mast arms is acted upon with liquid concrete.
EP05716007A 2004-03-26 2005-03-12 Installation and method for producing precast concrete parts Not-in-force EP1727656B1 (en)

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BRPI0509224A (en) 2007-09-04
DE102004015422A1 (en) 2005-10-13
ATE469745T1 (en) 2010-06-15
DE502005009678D1 (en) 2010-07-15
EP1727656B1 (en) 2010-06-02
MXPA06011050A (en) 2007-03-21
WO2005092584A1 (en) 2005-10-06

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