EP1557248B1 - Process for making concrete stones with a modular mould - Google Patents

Abstract

For the production of concrete paving stones, a number of selected molds (A-D) are taken from a store (3) and assembled together (6) within a base frame (X), and locked in place by release fittings. Concrete is poured into the molds and, when set, the paving stones are taken from the molds, and the molds are removed (7) from the frame. A computer (4) gives the selection commands (5) for the mold store.

Description

The invention relates to a method for the production of concrete blocks with modular mold construction.

As state of the art is out of the EP 0 274 344 A1 a rigid mold for the production of packages of concrete blocks known. With such a shape only individual concrete blocks can be made with predetermined by the rigid shape sizes. A production of concrete blocks of other sizes is possible only by producing a new rigid overall shape.

In the EP 1 319 485 A2 a method for the production of concrete blocks is described in which a plurality of individual forms are releasably attachable in a base frame for locking.

Out DE 25 36 926 For example, a die for molding concrete or shaped articles is produced, wherein the die permits an exchange of the forming elements forming elements, which is used for a method according to the preamble of claim 1.

The invention has for its object to provide a method for the production of concrete blocks, which allows the cost-effective production of a variety of different concrete blocks.

The object is achieved for the method by the features of patent claim 1. Advantageous process variants are described in the subclaims 2-5.

In the method according to the invention concrete blocks of different sizes can be produced depending on the customer or manufacturer's request. This is made possible by the fact that the required for the production of concrete blocks form is modular and has a base frame and on the other to this attachable individually selectable individual shapes.

Depending on the customer and manufacturer's request, a wide variety of individual shapes can be selected and applied to a given base frame for each operation.

Thus, the method according to the invention enables a variable production of concrete blocks of different sizes by receiving different individual shapes. In contrast to conventional rigid forms of metal (eg metal, wood, pegoplan, plastic, plastic, clay or ceramic) with filled and given inner shapes, the inventive method allows the placement of a given base frame with different inner frame, so that in directly successive production sequences different concrete blocks can be produced.

This method can be used particularly advantageously when working with liquid concrete, fluid concrete and self-compacting concrete, in particular after the wet-cast method. In this case, the provided overall shape, ie the respective base frame with recorded individual shapes, poured out. After that, the produced Concrete blocks taken from the individual forms and finally the individual forms again separated from the base frame.
Overall, the method according to the invention thus enables, in particular, a particularly flexible production for concrete blocks produced with liquid concrete.

According to an advantageous variant of the method, a base frame is provided, which e.g. can be designed as a wood or metal support frame. In this base frame - similar to a modular kit - different solid or elastic individual forms can be used until the base frame is completely filled. Instead of a complete filling also placeholder can be introduced.

After filling in the basic frame with individual shapes, the base frame and individual molds are detachably connected to one another via corresponding connecting elements (eg pins and openings, tongue and groove, folds, fits, clamps, screws, etc.) in order to introduce fluid concrete and possibly also during application Transport and stacking to prevent unwanted movement of the individual forms.

The introduced fluid concrete fills the cavities of the individual molds, after curing concrete blocks with the sizes of the individual molds can be taken from the individual molds.

In a next step, the base frame can be fitted with other individual shapes and concrete blocks of other sizes can be produced.

If desired, can be attached to the base frame repeatedly different individual shapes and thus - depending on customer or manufacturer's request - concrete blocks of different sizes, shapes and figures can be produced without a variety of rigid mold sets is needed.

According to a particularly advantageous variant of the method, the respective individually selectable individual shapes are kept available in a storage area (for example a high-bay warehouse). By known standard removal robots can be removed and supplied to a provided base frame for placement.

After production, the basic frame and individual shapes are detached from each other again and no longer required individual forms fed back to the storage area. The base frame can be used again and again and be equipped with new individual shapes.

Thus, the inventive method allows fully automatic control of the production process. In a first method step, at a computer user station (e.g., a personal computer), the individual forms desired by the customer or manufacturer are selected. Thereafter, a corresponding execution order is issued and the individual forms are removed from the storage area and fed to a provided base frame, inserted into this (for example plugged) and releasably connected thereto.

The base frame and individual forms are in particular modular and form a pluggable and ver unlockable modular molding system which can be created releasably in a manner known per se (eg pin connections).

Fig. 1

eine beispielhafte Auswahl von vier Einzelformen A, B, C und D,

Fig. 2

eine beispielhafte Darstellung eines Grundrahmens X,

Fig. 3

eine modular gebildete Gesamtform sowie

Fig. 4

eine schematische Darstellung des Verfahrens zur Herstellung von Betonsteinen.

The invention is explained in more detail with reference to embodiments in the drawing figures. Show it:

Fig. 1

an exemplary selection of four individual forms A, B, C and D,

Fig. 2

an exemplary representation of a basic frame X,

Fig. 3

a modular formed overall shape as well

Fig. 4

a schematic representation of the process for the production of concrete blocks.

Fig. 1 shows four different individual forms A, B, C and D (in particular pourable frame elements with floors, the frame elements, for example, have a rectangular cross-section). Such individual forms A, B, C and D can be kept in a storage area 3, in particular in an automated storage rack. The individual forms A, B, C and D can consist of frame elements, for example made of plastic or wooden frames. Overall, the individual forms A, B, C and D are used for filling in particular liquid concrete material in order to produce concrete blocks corresponding to the size of the interiors 1 of the individual forms A, B, C and D.

Fig. 2 shows a base frame X, on the individual forms A, B, C and D after Fig. 1 can be attached. For this purpose, the base frame X have separating points 2 for opening. The individual forms A, B, C and D may have pins which are insertable in openings of adjacent individual forms A, B, C and D or the base frame X as in a kit.

Such in a base frame X after Fig. 2 introduced individual forms A, B, C and D after Fig. 1 shows Fig. 3 , The result is a modular overall shape, wherein the base frame X can be equipped in a next production sequence with new selectable from a total of individual forms of individual forms E, F, G, H, I, etc. (not shown).

Fig. 4 shows a computer user station 4 (eg, a personal computer) for selecting 5 specific individual forms A, B, C, D, E, F, etc. from a storage area 3 for placement 6 of a base frame X. After completion of production, the individual forms are again after possibly a cleaning in the storage area 3 returned (step 7).

REFERENCE NUMBERS

1

inner space

2

separation point

3

storage area

4

Computer-user station

5

selection

6

, assembly

7

return

A, B, C, D, E, F

Single forms

X

base frame

Claims (5)

1. Method of producing concrete blocks, wherein a plurality of individual moulds (A, B, C and D) which can be selected individually can be attached to a base frame (X), comprising the following method steps:

   - fitting the base frame (X) with a plurality of selected individual moulds (A, B, C and D),

   - producing a releasable connection between the individual moulds (A, B, C and D) and the base frame (X) for locking the individual moulds (A, B, C and D),

   - filling the individual moulds (A, B, C and D) with liquid concrete material,

   - setting the concrete material,

   - removing the hardened concrete blocks from the individual moulds (A, B, C and D),

   - separating the individual moulds (A, B, C and D) from the base mould (X),

   characterized in that

   - a range of different individual moulds (A, B, C and D) are kept available in a storage region (3), and

   - individual moulds (A, B, C and D) which can be selected individually are fed from the storage region via an automatic removal device to the base frame (X) for fitting.
2. Method according to Claim 1, characterized in that the base frame (X) is designed as an outer frame.
3. Method according to Claim 2, wherein a plurality of individual moulds (A, B, C and D) are releasably attached in the interior of the outer frame (X).
4. Method according to one of the preceding claims, wherein the individual moulds (A, B, C and D) are releasably connected to one another.
5. Method according to one of the preceding claims, wherein the individual moulds (A, B, C and D) are separated from the base frame (X) and returned to the storage region (3) after use.

Images