EP1733857A1 - Method and apparatus for forming articles from a hydraulic binder, having at least one hollow section - Google Patents

Method and apparatus for forming articles from a hydraulic binder, having at least one hollow section Download PDF

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Publication number
EP1733857A1
EP1733857A1 EP05105223A EP05105223A EP1733857A1 EP 1733857 A1 EP1733857 A1 EP 1733857A1 EP 05105223 A EP05105223 A EP 05105223A EP 05105223 A EP05105223 A EP 05105223A EP 1733857 A1 EP1733857 A1 EP 1733857A1
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EP
European Patent Office
Prior art keywords
mold
shaped body
hydraulic binder
molding
shell
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
EP05105223A
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German (de)
French (fr)
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EP1733857B1 (en
Inventor
Thomas Herren
Beat Stähli
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Creabeton Materiaux Ag/sa
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Creabeton Materiaux Ag/sa
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Priority to AT05105223T priority Critical patent/ATE551164T1/en
Priority to DK05105223.1T priority patent/DK1733857T3/en
Priority to EP05105223A priority patent/EP1733857B1/en
Publication of EP1733857A1 publication Critical patent/EP1733857A1/en
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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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
    • 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
    • B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/168—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes for holders or similar hollow articles, e.g. vaults, sewer pits
    • 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
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346—Manufacture of moulds

Definitions

  • the present invention relates to a method and an apparatus for producing a body of a hydraulic binder having at least one cavity of predetermined shape.
  • the invention is particularly suitable for producing a manhole base made of concrete.
  • the processing of the blank is carried out essentially by a machining operation, for example by means of a robot, a milling machine, a lathe and / or other machining centers.
  • a further advantageous embodiment of the invention is that the molded body has a hardness less than or equal to 4 on the Mohss scale.
  • the molded body consists essentially of wood or gypsum, in particular gypsum.
  • the surfaces which are located in the interior of the mold shell, provided before filling with the hydraulic binder with a release agent are located in the interior of the mold shell, provided before filling with the hydraulic binder with a release agent.
  • the shaped body is arranged on a mandrel before the shaping shell is arranged.
  • a sleeve / Zapfenprofilformmaschine is disposed between the mold shell and the mandrel.
  • the molded body is provided with an outer protective layer after being processed.
  • the protective layer consists of a lacquer or resin.
  • the hydraulic binder consists essentially of concrete.
  • the invention also relates to an apparatus for carrying out the inventive method, with at least one substantially the negative mold of the mold to be formed and obtained by processing a blank molded body; a mold jacket; and at least one recess molding.
  • the device further comprises a mold core and optionally at least one sleeve / pin profile molding.
  • the molding shell is cylindrical.
  • the mold jacket has a rectangular cross-section.
  • the molding shell has a square or oval cross-section.
  • Another object of the invention is the use of the inventive device for producing at least one channel having a predetermined shape shaft bottom made of concrete.
  • An important step of the inventive method is to produce at least one shaped body.
  • the molding may consist of many solid but relatively soft materials, preferably of materials having a hardness less than or equal to 4 Mohsskala.
  • wood or gypsum which is easy to work can be used.
  • the gypsum is particularly preferred because it is very soft and easily available in the trade.
  • the plaster is inexpensive.
  • the working of the shaped body is carried out in any suitable manner and with any suitable machine until substantially the negative mold of the cavity to be formed is obtained.
  • substantially means here that the exact negative mold of the cavity is completely formed only with the help of recess moldings.
  • the shaped body is machined essentially by a machining process, for example with the aid of a robot, a milling machine, a lathe and / or other machining centers.
  • the skilled person will give the molded body an embodiment (shapes) which is suitable for stripping as simply as possible without the mold body having to be broken or broken.
  • the edges are rounded.
  • the molded body is provided after its production with an outer hard protective layer (not shown).
  • an outer hard protective layer (not shown).
  • the protective layer also allows the molding to be less abrasive and thus reused more often.
  • the protective layer may consist of a suitable lacquer or resin.
  • the first embodiment of the invention is shown in Figs. 1 and 2. It corresponds to the production of a gutter having a predetermined shape shaft bottom made of concrete.
  • a molded body 2 made of gypsum is produced as previously mentioned.
  • the crude gypsum is stirred and poured into a round mold, corresponding to the inside diameter of the manhole base.
  • the molded body is milled from this gypsum blank by means of a robot system.
  • This system is controlled via 3D software, which reads in the data directly from the customer. The details of the customer can be entered directly into the 3D software.
  • the molded body essentially has at least one main main channel 3 with a tunnel-shaped cross-section and possibly one or more lateral channel connections 4 with tunnel-shaped cross-section, and a substantially disk-shaped plate 11 (Fig. 1) to which the main channel 3 and the channel port 4 are connected.
  • a mold jacket 7 is placed around a disk-shaped mold core 6. As in Fig. 2 it can be seen, the mold jacket 7 is cylindrical. The mold core 6 and the mold jacket 7 are both located on a suitable flat surface F.
  • a sleeve shaped profile body or journal shaped body (or lower sleeve) 10 is arranged between the molding shell 7 and the mold core 6 on the surface F.
  • This sleeve / Zapfenprofilform stresses 10 is used for later preservation, on the upper side of the (normal position) shaft bottom 1, a certain shape that allows easy connection with attachment tubes or cones.
  • the molded body 2 is placed on the upper surface 5 of the mandrel 6.
  • AussparungsformMech 8 are then arranged between the mold shell 7 and the mandrel 6. Each recess molding 8 serves to form an opening in the wall of the shaft bottom, which opening will later enable the insertion of a pipe or conduit.
  • the recess moldings 8 are generally suspended and e.g. by vertical rail (not shown) fixed on the inner surface of the mold shell 7. They are oriented so that they come into contact with the end sides 2 a, 2 b and 2 c of the shaped body 2. That is, the axes of the recess moldings 8 are respectively aligned with the corresponding axes or center lines of the end faces 2a, 2b, 2c.
  • all surfaces which are located in the interior 9, that is, between the walls of the mold shell 7, provided with a release agent are provided with a release agent.
  • a release agent any suitable release agent can be used.
  • the release agent may consist of mineral oil, silicone oil or potassium soap.
  • the device according to the invention thus obtained is now ready to be filled with liquid concrete consisting of cement, water with optionally the customary additives (dispersing agents, plasticizers, Concrete sealants, setting or curing retardants or accelerators, defoamers, etc.).
  • liquid concrete consisting of cement, water with optionally the customary additives (dispersing agents, plasticizers, Concrete sealants, setting or curing retardants or accelerators, defoamers, etc.).
  • the interior 9 is filled with self-compacting concrete (SVB) until the molded body 2 is completely covered by the concrete.
  • SVB self-compacting concrete
  • the concrete layer over the molded body 2 may be, for example, 10 to 20 cm thick.
  • the assembly comprising the concrete, the molded body 2, the mold core 6, the mold jacket 7 and the recess moldings 8 is reversed.
  • the reversing or turning operation may be performed in any suitable manner, e.g. B. as in Figs. 2a and 2b of the patent application DE 43 42 518 shown.
  • the mold shell 7, the molded body 2 and the recess molding 8 can be removed.
  • the resulting shaft floor made of concrete is shown in FIG. 3.
  • the molded body 2 can be reused, i. All steps of the inventive method - except for the production of the molding - can be repeated several times.
  • the sentence, or the device according to the invention that is, the mandrel 6, the molded body 2, the mold shell 7, the or the recess moldings 8 placed in their appropriate places and positions so that the concrete can be poured again and a further shaft bottom can be produced.
  • a second embodiment of the invention is shown.
  • a channel with predetermined shape having shaft bottom made of concrete is produced.
  • the mandrel 6 ', the mold shell 7' and the sleeve / journal molded body 10 ' have a square outline.
  • the process is performed as in the first embodiment.
  • the cross section of the obtained shaft bottom shown in FIG. 4 corresponds to the cross section of the shaft bottom illustrated in FIG. 3.

Abstract

Process involves firstly treating a blank until the form body (2) takes on the negative shape of the shape to be made. A form coat (7) is put around the form body. At least one relief form body (8) is put between a part of the form body and the form coat. The interior (9) of the form coat is filled with hydraulic bonding agent until the form body is covered. After the hydraulic bonding agent has hardened, the assembly (2,7,8,9) is turned upside down. The form body is stripped out and the coat and relief form body both taken away. The device carries out this process.

Description

Die vorliegende Erfindung betrifft ein Verfahren und eine Vorrichtung zum Herstellen eines mindestens einen Hohlraum mit vorbestimmter Form aufweisenden Körpers aus einem hydraulischen Bindemittel. Die Erfindung eignet sich insbesondere zum Herstellen eines Schachtbodens aus Beton.The present invention relates to a method and an apparatus for producing a body of a hydraulic binder having at least one cavity of predetermined shape. The invention is particularly suitable for producing a manhole base made of concrete.

Stand der TechnikState of the art

Mit der internationalen Patentanmeldung WO 2004/091877 wurde bereits ein Verfahren zum Herstellen eines Schachtbodens aus Beton vorgeschlagen. Bei diesem Verfahren müssen mehrere Formstücke zusammen geklebt werden, um einen Formkörper zu bilden. Der Formkörper wird beim Ausschalen des Schachtbodens zerstört beziehungsweise geht verloren, so dass für jeden einzelnen Schachtboden ein neuer Formkörper gebildet werden muss. Ausserdem ist dieses Verfahren nicht umweltfreundlich, da die Formkörper aus Kunststoff bestehen.With the international patent application WO 2004/091877 For example, a method for producing a concrete shaft floor has already been proposed. In this process, several moldings must be glued together to form a molded article. The molded body is destroyed when stripping the shaft bottom or is lost, so that a new molded body must be formed for each individual shaft bottom. Moreover, this method is not environmentally friendly, since the moldings are made of plastic.

Aufgabe der vorliegenden Erfindung ist es daher, ein Verfahren der eingangs genannten Art so weiterzubilden, dass der Formkörper

  • nichts aus Einzelteilen zusammengeklebt wird,
  • nach dem Ausschalen wieder verwendet werden kann,
  • einfach herzustellen ist,
  • nur mit einem Arbeitsvorgang gefertigt werden kann,
  • umweltfreundlich ist, und
  • vorzugsweise, aus einem kostengünstigen Material besteht.
Object of the present invention is therefore to develop a method of the type mentioned so that the molding
  • nothing is stuck together from individual parts,
  • can be reused after stripping
  • easy to make,
  • can only be manufactured with one operation,
  • is environmentally friendly, and
  • preferably, consists of a low-cost material.

Offenbarung der ErfindungDisclosure of the invention

Erfindungsgemäss wird diese Aufgabe durch ein Verfahren gelöst, welches die folgenden wesentlichen Schritte umfasst:

  • Bearbeiten eines Rohlings, bis mindestens ein im wesentlichen die Negativform der zu bildender Form aufweisende Formkörper erhalten wird ;
  • Anordnen eines Formmantels um den Formkörper ;
  • Anordnen von mindestens eines Aussparungsformkörpers zwischen einem Teil des Formkörpers und dem Formmantel;
  • Ausfüllen des Innenraums des Formmantels mit einem hydraulischen Bindemittel, bis der Formkörper gedeckt wird ;
  • Nach dem Aushärten des hydraulischen Bindemittels, Umkehren des Zusammenbaus; und
  • Ausschalen des Formkörpers und Entfernen des Formmantels und des Aussparungsformkörpers.
According to the invention, this object is achieved by a method comprising the following essential steps:
  • Processing a blank, until at least one substantially the negative mold of the mold to be formed moldings is obtained;
  • Arranging a molding shell around the molding;
  • Arranging at least one recess molding between a part of the molding and the molding shell;
  • Filling the interior of the mold shell with a hydraulic binder until the molding is covered;
  • After curing of the hydraulic binder, reversing the assembly; and
  • Stripping the molding and removing the mold shell and the Aussparungsformkörpers.

Nach einer vorteilhaften Ausgestaltung der Erfindung erfolgt das Bearbeiten des Rohlings im wesentlichen durch einen spanabhebenden Vorgang, zum Beispiel mit Hilfe eines Roboters, einer Fräsmaschine, einer Drehmaschine und/oder sonstiger Bearbeitungszenter.According to an advantageous embodiment of the invention, the processing of the blank is carried out essentially by a machining operation, for example by means of a robot, a milling machine, a lathe and / or other machining centers.

Eine weitere vorteilhafte Ausgestaltung der Erfindung besteht darin, dass der Formkörper eine Härte kleiner oder gleich 4 nach der Mohsskala hat.A further advantageous embodiment of the invention is that the molded body has a hardness less than or equal to 4 on the Mohss scale.

Vorzugsweise besteht der Formkörper im wesentlichen aus Holz oder Gips, insbesondere aus Gips.Preferably, the molded body consists essentially of wood or gypsum, in particular gypsum.

Vorteilhaft werden die Oberflächen, die sich im Innenraum des Formmantels befinden, vor dem Ausfüllen mit dem hydraulischen Bindemittel mit einem Trennmittel versehen.Advantageously, the surfaces which are located in the interior of the mold shell, provided before filling with the hydraulic binder with a release agent.

Nach einer Ausführungsart wird der Formkörper vor dem Anordnen des Formmantels auf einem Formkern angeordnet.According to one embodiment, the shaped body is arranged on a mandrel before the shaping shell is arranged.

Nach einer anderen Ausführungsart wird ein Muffen-/Zapfenprofilformkörper zwischen dem Formmantel und dem Formkern angeordnet.According to another embodiment, a sleeve / Zapfenprofilformkörper is disposed between the mold shell and the mandrel.

Nach einer weiteren Ausführungsart wird der Formkörper nach seinem Bearbeiten mit einer äusseren Schutzschicht versehen.According to a further embodiment, the molded body is provided with an outer protective layer after being processed.

Vorteilhafterweise besteht die Schutzschicht aus einem Lack oder Harz.Advantageously, the protective layer consists of a lacquer or resin.

Nach einer Ausführungsform der Erfindung besteht das hydraulische Bindemittel im wesentlichen aus Beton.According to one embodiment of the invention, the hydraulic binder consists essentially of concrete.

Gegenstand der Erfindung ist auch eine Vorrichtung zur Ausführung des erfindungsgemässen Verfahrens, mit
mindestens einem im wesentlichen die Negativform der zu bildenden Form aufweisenden und durch Bearbeiten eines Rohlings erhaltenen Formkörper;
einem Formmantel; und
mindestens einem Aussparungsformkörper.The invention also relates to an apparatus for carrying out the inventive method, with
at least one substantially the negative mold of the mold to be formed and obtained by processing a blank molded body;
a mold jacket; and
at least one recess molding.

Nach einer Ausführungsart weist die Vorrichtung ferner einen Formkern und gegebenenfalls wenigstens einen Muffen-/Zapfenprofilformkörper auf.According to one embodiment, the device further comprises a mold core and optionally at least one sleeve / pin profile molding.

Nach einer Ausführungsart ist der Formmantel zylindrisch.According to one embodiment, the molding shell is cylindrical.

Nach einer weiteren Ausführungsart hat der Formmantel einen rechteckigen Querschnitt.According to a further embodiment, the mold jacket has a rectangular cross-section.

Nach einer weiteren Ausführungsart hat der Formmantel einen quadratischen oder ovalen Querschnitt.According to another embodiment, the molding shell has a square or oval cross-section.

Ein weiterer Gegenstand der Erfindung ist die Verwendung der erfindungsgemässen Vorrichtung zum Herstellen mindestens eines ein Gerinne mit vorbestimmter Form aufweisenden Schachtbodens aus Beton.Another object of the invention is the use of the inventive device for producing at least one channel having a predetermined shape shaft bottom made of concrete.

Weitere Merkmale und Zweckmässigkeiten der Erfindung ergeben sich aus der Beschreibung von Ausführungsbeispielen anhand der Zeichnungen. Es zeigen schematisch :

  • Figur 1 eine Querschnittansicht eines Zusammenbaus (Formkern, Formmantel mit kreisförmigem Querschnitt, Formkörper, Aussparungsformkörper, Beton) vor dem Umkehren, gemäss der Linie X-X der Fig. 2;
  • Figur 2 eine Untersicht des Zusammenbaus der Fig. 1;
  • Figur 3 eine Querschnittansicht des nach dem Umkehren und dem Ausschalen des Zusammenbaus der Fig. 1 und 2 erhaltenen Schachtbodens;
  • Figur 4 eine Querschnittansicht eines weiteren Zusammenbaus gemäss der Linie I-I der Fig. 5; und
  • Figur 5 eine Draufsicht (Querschnitt) des Zusammenbaus der Fig. 4 gemäss der Linie II-II der Fig. 4.
Other features and advantages of the invention will become apparent from the description of embodiments with reference to the drawings. They show schematically:
  • Figure 1 is a cross-sectional view of an assembly (mold core, mold shell of circular cross section, molded body, recess molding, concrete) before reversing, according to the line XX of FIG. 2;
  • Figure 2 is a bottom view of the assembly of Figure 1;
  • Figure 3 is a cross-sectional view of the shaft bottom obtained after inverting and stripping the assembly of Figures 1 and 2;
  • Figure 4 is a cross-sectional view of another assembly according to the line II of Fig. 5; and
  • 5 shows a plan view (cross-section) of the assembly of FIG. 4 according to the line II-II of FIG. 4.

Ausführungsformen der ErfindungEmbodiments of the invention Gemeinsame MerkmaleCommon features

Ein wichtiger Schritt des erfindungsgemässen Verfahrens besteht darin, mindestens einen Formkörper herzustellen.An important step of the inventive method is to produce at least one shaped body.

Der Formkörper kann aus vielen festen aber relativ weichen Materialien, vorzugsweise aus Materialen mit einer Härte kleiner oder gleich 4 nach der Mohsskala, bestehen.The molding may consist of many solid but relatively soft materials, preferably of materials having a hardness less than or equal to 4 Mohsskala.

Als solche Materialien können zum Beispiel Holz oder Gips, die sich einfach bearbeiten lassen, verwendet werden. Besonders bevorzugt ist der Gips, weil er sehr weich und im Handel einfach verfügbar ist. Ferner ist der Gips kostengünstig.As such materials, for example, wood or gypsum which is easy to work can be used. Particularly preferred is the gypsum, because it is very soft and easily available in the trade. Furthermore, the plaster is inexpensive.

Das Bearbeiten des Formkörpers wird auf irgendwelche geeignete Weise und mit jeder geeigneten Maschine durchgeführt, bis im wesentlichen die Negativform des zu bildenden Hohlraums erhalten wird. "Im wesentlichen" heisst hier, dass die genaue Negativform des Hohlraums nur mit Hilfe von Aussparungsformkörper völlig gebildet wird.The working of the shaped body is carried out in any suitable manner and with any suitable machine until substantially the negative mold of the cavity to be formed is obtained. "Substantially" means here that the exact negative mold of the cavity is completely formed only with the help of recess moldings.

Vorzugsweise wird der Formkörper im wesentlichen durch einen spanabhebenden Vorgang, zum Beispiel mit Hilfe eines Roboters, einer Fräsmaschine, einer Drehmaschine und/oder sonstiger Bearbeitungszenter bearbeitet.Preferably, the shaped body is machined essentially by a machining process, for example with the aid of a robot, a milling machine, a lathe and / or other machining centers.

Es ist auch möglich, entweder mehrere Formkörper aus dem selben Rohling oder mehrere Formkörper aus mehreren Rohlingen zu bearbeiten.It is also possible to process either several moldings from the same blank or several moldings from several blanks.

Selbstverständlich wird der Fachmann dem Formkörper eine Ausgestaltung (Formen) geben, die sich zu einem möglichst einfachen Ausschalen eignet, ohne dass sich der Formkörper bricht oder gebrochen werden muss. Zum Beispiel kann vorgesehen werden, dass die Kanten abgerundet werden.Of course, the skilled person will give the molded body an embodiment (shapes) which is suitable for stripping as simply as possible without the mold body having to be broken or broken. For example, it can be provided that the edges are rounded.

Vorteilhafterweise wird der Formkörper nach seiner Herstellung mit einer (nicht dargestellten) äusseren harten Schutzschicht versehen. Auf diese Weise wird eine Beschädigung der Oberfläche des Formkörpers vermieden. Die Schutzschicht ermöglicht auch, dass der Formkörper sich weniger abschleift und somit öfters wieder verwendet werden kann.Advantageously, the molded body is provided after its production with an outer hard protective layer (not shown). In this way, damage to the surface of the shaped body is avoided. The protective layer also allows the molding to be less abrasive and thus reused more often.

Die Schutzschicht kann aus einem geeigneten Lack oder Harz bestehen.The protective layer may consist of a suitable lacquer or resin.

Erste AusführungsformFirst embodiment

Die erste Ausführungsform der Erfindung wird in den Fig. 1 und 2 dargestellt. Sie entspricht der Herstellung eines ein Gerinne mit vorbestimmter Form aufweisenden Schachtbodens aus Beton.The first embodiment of the invention is shown in Figs. 1 and 2. It corresponds to the production of a gutter having a predetermined shape shaft bottom made of concrete.

Ein Formkörper 2 aus Gips wird wie vorher erwähnt hergestellt. Der rohe Gips wird angerührt und in eine runde, dem Innendurchmesser des Schachtunterteils entsprechende Form gegossen. Anschliessend wird aus diesem Gipsrohling mittels einer Roboteranlage der Formkörper zugefräst. Diese Anlage wird via 3D-Software, welche die Daten vom Kunden direkt einliest, gesteuert. Die Angaben des Kunden können so direkt in die 3D-Software eingegeben werden.A molded body 2 made of gypsum is produced as previously mentioned. The crude gypsum is stirred and poured into a round mold, corresponding to the inside diameter of the manhole base. Subsequently, the molded body is milled from this gypsum blank by means of a robot system. This system is controlled via 3D software, which reads in the data directly from the customer. The details of the customer can be entered directly into the 3D software.

Der Formkörper weist im Wesentlichen
mindestens ein durchgehendes Hauptgerinne 3 mit tunnelförmigem Querschnitt und eventuell ein oder mehrere seitliche Gerinneanschlüsse 4 mit tunnelförmigem Querschnitt, und
eine im Wesentlichen scheibenförmige Platte 11 (Fig. 1), mit welcher das Hauptgerinne 3 und der Gerinneanschluss 4 verbunden sind, auf.The molded body essentially has
at least one main main channel 3 with a tunnel-shaped cross-section and possibly one or more lateral channel connections 4 with tunnel-shaped cross-section, and
a substantially disk-shaped plate 11 (Fig. 1) to which the main channel 3 and the channel port 4 are connected.

Vor, während oder nach dem Bearbeiten des Formkörpers 2 wird ein Formmantel 7 um einen scheibenförmigen Formkern 6 gestellt. Wie in Fig. 2 ersichtlich, ist der Formmantel 7 zylindrisch. Der Formkern 6 und der Formmantel 7 befinden sich beide auf einer geeigneten ebenen Fläche F.Before, during or after the machining of the molded body 2, a mold jacket 7 is placed around a disk-shaped mold core 6. As in Fig. 2 it can be seen, the mold jacket 7 is cylindrical. The mold core 6 and the mold jacket 7 are both located on a suitable flat surface F.

Vorteilhafterweise wird ein Muffenprofilformkörper oder Zapfenprofilformkörper (oder Untermuffe) 10 zwischen dem Formmantel 7 und dem Formkern 6 auf der Fläche F angeordnet. Dieser Muffen-/Zapfenprofilformkörper 10 dient zur späteren Erhaltung, an der oberen Seite des (in normaler Stellung) Schachtbodens 1, einer bestimmten Form, die einer einfachen Verbindung mit Aufsatzrohren oder Konen erlaubt.Advantageously, a sleeve shaped profile body or journal shaped body (or lower sleeve) 10 is arranged between the molding shell 7 and the mold core 6 on the surface F. This sleeve / Zapfenprofilformkörper 10 is used for later preservation, on the upper side of the (normal position) shaft bottom 1, a certain shape that allows easy connection with attachment tubes or cones.

Dann wird der Formkörper 2 auf die obere Fläche 5 des Formkernes 6 platziert.Then, the molded body 2 is placed on the upper surface 5 of the mandrel 6.

Aussparungsformkörper 8 werden dann zwischen dem Formmantel 7 und dem Formkern 6 angeordnet. Jeder Aussparungsformkörper 8 dient zur Bildung einer Öffnung in der Wand des Schachtbodens, welche Öffnung später das Einfügen eines Rohres oder einer Leitung ermöglichen wird.Aussparungsformkörper 8 are then arranged between the mold shell 7 and the mandrel 6. Each recess molding 8 serves to form an opening in the wall of the shaft bottom, which opening will later enable the insertion of a pipe or conduit.

Die Aussparungsformkörper 8 sind im Allgemeinen aufgehängt und z.B. durch (nicht dargestellte) vertikale Schiene, die auf der inneren Oberfläche des Formmantels 7 befestigt sind, geführt. Sie sind so orientiert, dass sie in Kontakt mit den Endseiten 2a, 2b und 2c des Formkörpers 2 kommen. Das heisst, die Achsen der Aussparungsformkörper 8 werden jeweils mit den entsprechenden Achsen oder Mittellinien der Endseiten 2a, 2b, 2c ausgerichtet.The recess moldings 8 are generally suspended and e.g. by vertical rail (not shown) fixed on the inner surface of the mold shell 7. They are oriented so that they come into contact with the end sides 2 a, 2 b and 2 c of the shaped body 2. That is, the axes of the recess moldings 8 are respectively aligned with the corresponding axes or center lines of the end faces 2a, 2b, 2c.

Vorteilhaft werden alle Oberflächen, die sich im Innenraum 9, das heisst, zwischen den Wänden des Formmantels 7 befinden, mit einem Trennmittel versehen. Als Trennmittel kann irgendwelches geeignetes Trennmittel verwendet werden. Zum Beispiel kann das Trennmittel aus Mineralöl, Silikonöl oder Kaliumseife bestehen.Advantageously, all surfaces which are located in the interior 9, that is, between the walls of the mold shell 7, provided with a release agent. As the release agent, any suitable release agent can be used. For example, the release agent may consist of mineral oil, silicone oil or potassium soap.

Die erfindungsgemässe Vorrichtung, die so erhalten wird, ist nun bereit zum Ausfüllen mit flüssigem Beton, der sich aus Zement, Wasser mit gegebenenfalls den üblichen Zusatzmitteln (Dispersiermitteln, Plastiziermitteln, Betondichtungsmitteln, Abbinde- oder Aushärtungsverzögerungs- oder ― beschleunigungsmitteln, Entschäumern, usw.) zusammensetzt.The device according to the invention thus obtained is now ready to be filled with liquid concrete consisting of cement, water with optionally the customary additives (dispersing agents, plasticizers, Concrete sealants, setting or curing retardants or accelerators, defoamers, etc.).

Der Innenraum 9 wird mit selbstverdichtendem Beton (SVB) ausgefüllt, bis der Formkörper 2 ganz vom Beton gedeckt wird. Die Betonschicht über dem Formkörper 2 kann zum Beispiel 10 bis 20 cm dick sein.The interior 9 is filled with self-compacting concrete (SVB) until the molded body 2 is completely covered by the concrete. The concrete layer over the molded body 2 may be, for example, 10 to 20 cm thick.

Nach dem Aushärten des Betons wird der Zusammenbau, welcher den Beton, den Formkörper 2, den Formkern 6, den Formmantel 7 und die Aussparungsformkörper 8 umfasst, umgekehrt.After the concrete has hardened, the assembly comprising the concrete, the molded body 2, the mold core 6, the mold jacket 7 and the recess moldings 8 is reversed.

Das Umkehren oder der Wendevorgang kann auf irgendwelche geeignete Weise durchgeführt werden, z. B. wie in den Fig. 2a und 2b der Patentanmeldung DE 43 42 518 dargestellt.The reversing or turning operation may be performed in any suitable manner, e.g. B. as in Figs. 2a and 2b of the patent application DE 43 42 518 shown.

Dann können der Formkern 6 und die Muffen-/Zapfenprofilformkörper 10 entfernt werden.Then, the mandrel 6 and the sleeve / journal molded bodies 10 can be removed.

Anschliessend können der Formmantel 7, der Formkörper 2 und die Aussparungsformkörper 8 entfernt werden.Subsequently, the mold shell 7, the molded body 2 and the recess molding 8 can be removed.

Der erhaltene Schachtboden aus Beton ist in der Fig. 3 dargestellt.The resulting shaft floor made of concrete is shown in FIG. 3.

Erfindungsgemäss kann der Formkörper 2 wieder verwendet werden, d.h. alle Schritte des erfindungsgemässen Verfahrens - ausser des Herstellens des Formkörpers - können mehrmals wiederholt werden.According to the invention, the molded body 2 can be reused, i. All steps of the inventive method - except for the production of the molding - can be repeated several times.

Zu diesem Zweck wird der Satz, beziehungsweise die erfindungsgemässe Vorrichtung, das heisst, der Formkern 6, der Formkörper 2, der Formmantel 7, der oder die Aussparungsformkörper 8 in ihre geeigneten Stellen und Stellungen so platziert, dass der Beton wieder gegossen werden kann und einen weiteren Schachtboden hergestellt werden kann.For this purpose, the sentence, or the device according to the invention, that is, the mandrel 6, the molded body 2, the mold shell 7, the or the recess moldings 8 placed in their appropriate places and positions so that the concrete can be poured again and a further shaft bottom can be produced.

Zweite AusführungsformSecond embodiment

In Fig. 4 und 5 ist eine zweite Ausführungsform der Erfindung dargestellt. Hier wird auch ein Gerinne mit vorbestimmter Form aufweisende Schachtboden aus Beton hergestellt. Aber im Gegensatz zur ersten Ausführungsform haben der Formkern 6', der Formmantel 7' und der Muffen-/Zapfenprofilformkörper 10' einen quadratischen Umriss.In Fig. 4 and 5, a second embodiment of the invention is shown. Here also a channel with predetermined shape having shaft bottom made of concrete is produced. But in contrast to the first embodiment, the mandrel 6 ', the mold shell 7' and the sleeve / journal molded body 10 'have a square outline.

Das Verfahren wird wie in der ersten Ausführungsform durchgeführt.The process is performed as in the first embodiment.

Der in Fig. 4 dargestellte Querschnitt des erhaltenen Schachtbodens entspricht dem Querschnitt des in Fig. 3 dargestellten Schachtbodens.The cross section of the obtained shaft bottom shown in FIG. 4 corresponds to the cross section of the shaft bottom illustrated in FIG. 3.

Mit den vorgängig beschriebenen Verfahren und Vorrichtungen können sehr viele Schachtböden hergestellt werden.Very many shaft bottoms can be produced with the previously described methods and devices.

Der Fachmann wird auch weitere Körper mit einem unterschiedlichen Hohlraum, z.B. Pflanzentröge oder Wehrsteine, herstellen können. Er wird sogar Körper mit mehreren identischen oder unterschiedlichen Hohlräumen herstellen können, indem er mehrere Formkörper im Verfahren benutzen wird.The person skilled in the art will also use other bodies with a different cavity, e.g. Plant troughs or weirstones, can produce. He will even be able to produce bodies with several identical or different cavities by using several moldings in the process.

Der Fachmann wird einfach die Gestalt des Formkörpers anpassen und/oder einen oder mehrere zusätzliche Aussparungsformkörper mit geeigneten Formen in geeigneter Weise innerhalb des Formmantels einfügen. Dazu kann er jede Technik, die im Bereich der Formung von Körpern bekannt ist, anwenden.The person skilled in the art will simply adapt the shape of the shaped body and / or insert one or more additional cut-out shaped bodies with suitable shapes in a suitable manner within the molded shell. He can use any technique known in the field of body formation.

Claims (20)

Verfahren zum Herstellen eines mindestens einen Hohlraum mit vorbestimmter Form aufweisenden Körpers (1,1') aus einem hydraulischen Bindemittel, mit den folgenden Schritten : - Bearbeiten eines Rohlings, bis mindestens ein im wesentlichen die Negativform der zu bildenden Form aufweisende Formkörper (2) erhalten wird; - Anordnen eines Formmantels (7,7') um dem Formkörper (2); - Anordnen von mindestens eines Aussparungsformkörpers (8) zwischen einem Teil des Formkörpers (2) und dem Formmantel (7,7'); - Ausfüllen des Innenraums (9) des Formmantels (7,7') mit einem hydraulischen Bindemittel, bis der Formkörper (2) gedeckt wird; - Nach dem Aushärten des hydraulischen Bindemittels, Umkehren des Zusammenbaus (2; 7,7'; 8; 9) ; und - Ausschalen des Formkörpers (2) und Entfernen des Formmantels (7,7') und des Aussparungsformkörpers (8). Method for producing a body (1, 1 ') of at least one cavity of predetermined shape from a hydraulic binder, comprising the following steps: - Processing a blank until at least one substantially the negative mold of the mold to be formed having molded body (2) is obtained; Arranging a mold jacket (7, 7 ') around the molded body (2); Arranging at least one recess shaped body (8) between a part of the shaped body (2) and the molding shell (7, 7 '); - Filling the interior (9) of the mold shell (7,7 ') with a hydraulic binder until the molding (2) is covered; After curing of the hydraulic binder, reversing the assembly (2, 7, 7 ', 8, 9); and - Stripping of the molding (2) and removing the mold shell (7,7 ') and the recess molding (8). Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Bearbeiten des Rohlings im wesentlichen durch einen spanabhebenden Vorgang erfolgt.A method according to claim 1, characterized in that the processing of the blank takes place substantially by a machining operation. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Formkörper (2) eine Härte kleiner oder gleich 4 nach der Mohsskala hat.A method according to claim 1 or 2, characterized in that the shaped body (2) has a hardness less than or equal to 4 on the Mohss scale. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Formkörper (2) im wesentlichen aus Gips oder Holz besteht.Method according to one of claims 1 to 3, characterized in that the shaped body (2) consists essentially of gypsum or wood. Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Oberflächen, die sich im Innenraum (9) des Formmantels (7,7') vor dem Ausfüllen mit dem hydraulischen Bindemittel mit einem Trennmittel versehen werden.Method according to one of claims 1 to 4, characterized in that the surfaces which are provided in the interior (9) of the mold shell (7,7 ') before filling with the hydraulic binder with a release agent. Verfahren nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass der Formkörper (2) vor dem Anordnen des Formmantels (7,7') auf einen Formkern (6,6') angeordnet wird.Method according to one of claims 1 to 5, characterized in that the shaped body (2) before arranging the mold shell (7,7 ') on a mandrel (6,6') is arranged. Verfahren nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass ein Muffen-/Zapfenprofilformkörper (10,10') zwischen dem Formmantel (7,7') und dem Formkern (6,6') angeordnet wird.Method according to one of claims 1 to 6, characterized in that a sleeve / Zapfenprofilformkörper (10,10 ') between the mold shell (7,7') and the mandrel (6,6 ') is arranged. Verfahren nach einem der Ansprüche 1 bis 6 dadurch gekennzeichnet, dass der Formkörper (2) nach seinem Bearbeiten mit einer äusseren Schutzschicht versehen wird.Method according to one of claims 1 to 6, characterized in that the shaped body (2) is provided after its processing with an outer protective layer. Verfahren nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das hydraulische Bindemittel im wesentlichen aus Beton besteht.Method according to one of claims 1 to 8, characterized in that the hydraulic binder consists essentially of concrete. Vorrichtung zum Herstellen eines mindestens einen Hohlraum mit vorbestimmter Form aufweisenden Körpers (1,1') aus einem hydraulischen Bindemittel, mit - mindestens einem im wesentlichen die Negativform der zu bildenden Form aufweisenden und durch Bearbeiten eines Rohlings erhaltenen Formkörper (2); - einem Formmantel (7,7'); und - mindestens einem Aussparungsformkörper (8). Device for producing a body (1,1 ') of at least one cavity of predetermined shape from a hydraulic binder, with - At least one substantially the negative mold of the mold to be formed and obtained by processing a blank molded body (2); - A molding shell (7,7 '); and - At least one cut-out shaped body (8). Vorrichtung nach Anspruch 10, dadurch gekennzeichnet, dass der Formkörper (2) eine Härte kleiner oder gleich 4 nach der Mohsskala hat.Apparatus according to claim 10, characterized in that the shaped body (2) has a hardness less than or equal to 4 on the Mohss scale. Vorrichtung nach Anspruch 10 oder 11, dadurch gekennzeichnet, dass der Formkörper (2) im wesentlichen aus Gips oder Holz besteht.Apparatus according to claim 10 or 11, characterized in that the shaped body (2) consists essentially of gypsum or wood. Vorrichtung nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass sie ferner einen Formkern (6,6') und gegebenenfalls einen Muffen-/Zapfenprofilformkörper (10,10') aufweist.Device according to one of claims 10 to 12, characterized in that it further comprises a mandrel (6,6 ') and optionally a sleeve / Zapfenprofilformkörper (10,10'). Vorrichtung nach einem der Ansprüche 10 bis 13, dadurch gekennzeichnet, dass der Formkörper (2) eine äussere Schutzschicht aufweist.Device according to one of claims 10 to 13, characterized in that the shaped body (2) has an outer protective layer. Vorrichtung nach Anspruch 14, dadurch gekennzeichnet, dass die Schutzschicht aus einem Lack oder Harz besteht.Apparatus according to claim 14, characterized in that the protective layer consists of a lacquer or resin. Vorrichtung nach einem der Ansprüche 10 bis 15, dadurch gekennzeichnet, dass der Formmantel (7) zylindrisch ist.Device according to one of claims 10 to 15, characterized in that the mold jacket (7) is cylindrical. Vorrichtung nach einem der Ansprüche 10 bis 16, dadurch gekennzeichnet, dass der Formmantel (7') einen rechteckigen Querschnitt hat.Device according to one of claims 10 to 16, characterized in that the mold jacket (7 ') has a rectangular cross-section. Vorrichtung nach Anspruch 17, dadurch gekennzeichnet, dass der Formmantel (7') einen quadratischen Querschnitt hat.Apparatus according to claim 17, characterized in that the mold jacket (7 ') has a square cross-section. Vorrichtung nach einem der Ansprüche 10 bis 18, dadurch gekennzeichnet, dass das hydraulische Bindemittel im wesentlichen aus Beton besteht.Device according to one of claims 10 to 18, characterized in that the hydraulic binder consists essentially of concrete. Verwendung einer Vorrichtung gemäss einem der Ansprüche 10 bis 19 zum Herstellen mindestens eines ein Gerinne mit vorbestimmter Form aufweisenden Schachtbodens (1,1') aus Beton.Use of a device according to one of claims 10 to 19 for producing at least one channel having a predetermined shape shaft bottom (1,1 ') made of concrete.
EP05105223A 2005-06-14 2005-06-14 Method and apparatus for forming articles from a hydraulic binder, having at least one hollow section Active EP1733857B1 (en)

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AT05105223T ATE551164T1 (en) 2005-06-14 2005-06-14 METHOD AND DEVICE FOR PRODUCING A BODY HAVING AT LEAST ONE CAVITY FROM A HYDRAULIC BINDER
DK05105223.1T DK1733857T3 (en) 2005-06-14 2005-06-14 Method and apparatus for producing a body having at least one cavity of a hydraulic binder
EP05105223A EP1733857B1 (en) 2005-06-14 2005-06-14 Method and apparatus for forming articles from a hydraulic binder, having at least one hollow section

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DE102009053179A1 (en) * 2009-11-07 2011-05-12 Siegfried Röser GmbH & Co. KG Method for manufacturing manhole bottom part from concrete with individual channels, involves placing individually designed channel negative on inner cap, where inner cap serves as mold core
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EP2527118A1 (en) * 2007-05-08 2012-11-28 Georg Prinzing GmbH & Co. KG Betonformen- und Maschinenfabrik Lower part of shaft with channel
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Cited By (11)

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Publication number Priority date Publication date Assignee Title
DE102007017471A1 (en) * 2007-04-13 2008-10-16 Bfs Betonfertigteilesysteme Gmbh A method for producing a negative mold for the production of manhole shaft floor pieces
EP2527118A1 (en) * 2007-05-08 2012-11-28 Georg Prinzing GmbH & Co. KG Betonformen- und Maschinenfabrik Lower part of shaft with channel
WO2009149709A1 (en) * 2008-06-09 2009-12-17 Grindsted Betonvarefabrik A/S A negative disposable mould piece for the casting of well bottoms and a method of making a disposable mould piece as well as a method of casting a well bottom with the disposable mould piece
EP2314433A3 (en) * 2009-10-23 2014-02-19 Betonwerk Bieren GmbH Negative mould for producing the base of a shaft with a channel and method for producing the same
DE202009017953U1 (en) 2009-10-27 2010-10-14 Bfs Betonfertigteilesysteme Gmbh Device for producing a mold for the production of manhole bottom pieces and device for producing manhole bottom pieces
DE102009046048A1 (en) 2009-10-27 2011-04-28 Bfs Betonfertigteilesysteme Gmbh Method for producing a mold for the production of manhole bottom pieces and method for producing manhole bottom pieces
EP2316625A2 (en) 2009-10-27 2011-05-04 BFS Betonfertigteilesysteme GmbH Method for producing a mould for the production of shaft base sections and method for producing shaft base sections
EP2316625A3 (en) * 2009-10-27 2011-12-28 BFS Betonfertigteilesysteme GmbH Method for producing a mould for the production of shaft base sections and method for producing shaft base sections
DE102009053179A1 (en) * 2009-11-07 2011-05-12 Siegfried Röser GmbH & Co. KG Method for manufacturing manhole bottom part from concrete with individual channels, involves placing individually designed channel negative on inner cap, where inner cap serves as mold core
DE102010030241A1 (en) * 2010-06-17 2011-12-22 Bfs Betonfertigteilesysteme Gmbh Process for producing a negative mold for the production of concrete elements
EP2397296A3 (en) * 2010-06-17 2014-07-16 BFS Betonfertigteilesysteme GmbH Method for producing a negative mould for producing concrete elements

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