DE202021105285U1 - Device for the production of surface-structured concrete components - Google Patents

Abstract

Concrete block manufacturing device (10) for distributing free-flowing material (40), in particular granulate (42), for forming an at least partially formed surface layer (34) of such material on a concrete block base body (44), with at least one component (A ) a free-flowing material (40) can be fed to the device (10), comprising at least one feed element (12), a portioning device (18) and at least one opening element (20), characterized in that the portioning device (18) has at least one linear portioning section ( 14), wherein the free-flowing material (40) can be supplied controllably via the at least one supply element (12) along the linear portioning section (14), and the free-flowing material (40) of a portioning section (14) then via a distribution section (L) the opening element (20) can be conveyed out and via this opening element (20) onto a surface (28) of the concrete block base body (44) can be applied to form an at least linear trickle path (R), so that the areal distribution of the free-flowing material (40) along the trickle path (R) corresponds to the volume distribution of the free-flowing material (40) in the portioning section (14).

Description

The invention relates to a concrete block manufacturing device for distributing free-flowing material, in particular granules, for forming an at least partially formed surface layer of such material on a concrete block base.

At least one component of a free-flowing material is supplied to the concrete block manufacturing device. The device comprises at least one feed element, a portioning device and at least one opening element, so that the pourable material can be sprinkled in a predetermined arrangement and / or mixture in a distributed manner over the surface of a concrete block base body.

The aim of the device is to produce a concrete block with an at least two or more colored, in particular mostly speckled, surface which can be created by sprinkling the or various pourable components with an individually selectable color. In particular, the device can be used to produce patterns or images which are made possible by the targeted feeding of different components of the free-flowing material into the portioning device. For example, a striped pattern can be generated in this way by successively dispensing different components from the portioning device. In other words, a type of image or pattern comparable to a printer can be applied.

STATE OF THE ART

Devices are known from the prior art which are designed to apply a surface layer of at least one component and a mixture of at least two different components on a concrete block base body.

So shows the EP 2 910 354 A1 a device and a method for applying patterned surface structures to paving stones and for producing the paving stones. Various materials can be conveyed to the mold templates for the production of the paving stones via a charging carriage which is mounted so as to be movable along a guide rail. The filling carriage has a first chamber, in which the base material is stored, and at least one second chamber, in which the material for applying the surface structure is stored. The material of the second chamber can reach at least one perforated plate via a feed device. This takes place via at least one movable metering element in the form of a mill wheel.

the DE 10 2014 010 259 A1 discloses a manufacturing method for concrete elements. The concrete elements have at least one concrete layer. Concrete is poured into a mold for at least one element. The concrete is then compacted by means of vibration and / or stamping. Before compacting, at least one portion of a granular material is applied to the concrete layer by means of an application device. This can consist of colored or differently colored granular material. The material can be sprinkled or thrown up onto the concrete layer by means of the application device, the application device having at least one trickle device, a centrifugal disk or a paddle wheel. The application device comprises a paddle wheel which rotates about an axis orthogonal to the surface of the mold production base, whereby the material can be distributed over a large area.

the EP 1510 314 B1 shows a method and a device for the production of multi-colored concrete blocks, comprising a silo and a filling carriage which can be moved between the silo and a mold template. The silo has at least two chambers that can fill different materials into the at least two receiving spaces of the filling wagon. The filling car is first placed and filled below the silo and then moved to the mold templates for the production of the concrete blocks. The concrete block is filled with the material of the first recording room when driving there. When driving back, a surface layer is applied with the material of the second receiving space. A distributor roller can be arranged at each of the outlets of the receiving spaces so that the material is evenly distributed from the receiving space onto the template. The distribution rollers run over the entire length of the outlets of the receiving spaces and are thus equipped with material over the entire length.

In the DD 246 075 A1 Another device for coating concrete elements is shown. The aim is to achieve a uniform coating with grit of different grain sizes. To do this, a grit container with a tub is moved over the concrete elements. A cone of grit is formed within the grit container. A rotating cellular wheel removes grit from the cone and throws it onto a distribution plate that is attached to the grit container. For this purpose, the cellular wheel has sector-shaped chambers and rotates against the movement of the chippings within the grit container.

In the EP 1 827 784 B4 a method for manufacturing concrete blocks is proposed, wherein finishing material is thrown up by means of a metering container and a metering strip. That Refining material falls from the dosing container onto a centrifugal disk that is set in rotation. Bars are arranged on the centrifugal disk so that the finishing material is partly carried along with the rotation of the centrifugal disk and thrown off by the centrifugal force. The centrifugal disc with the silo is moved over the surface of the concrete blocks during processing. The concrete blocks are given an irregular surface structure as the finishing material is distributed in an uncontrolled manner. The concrete blocks then have an irregularly speckled surface with different layer thicknesses.

the EP 3 546 165 A1 relates to a generic device and a method for producing surface-structured concrete components. Free-flowing material is introduced centrally into a distribution device in a punctiform manner and is initially distributed there uniformly in one dimension by means of a screw conveyor. The free-flowing material can be applied over a large area in the context of a relative movement of the application device to the concrete form via a cell wheel called a spiked roller. Thus, only a uniform, 0-dimensionally supplied trickling material can be trickled two-dimensionally onto a concrete form. A controllable distribution of the trickling material or an application of different types of trickling material in different surface areas is not possible.

There is the problem that in order to form a flat surface layer with a constant layer thickness and uniform material density, the free-flowing or granular material has to be conveyed out of the device. In the prior art, this is achieved by producing and providing containers or silos with specially designed opening devices for the respective system, into which the free-flowing material is first transferred from the storage containers and then fed to the device. The length over which the material can ultimately leave the device depends on the length of the opening area or the length of the silo from which the material is fed to the device. For a simultaneous production of surface layers on several concrete blocks arranged next to one another, a very long silo with a very long opening area would therefore be required. Accordingly, the number of surface layers to be produced at the same time is limited by the length of the opening area of the silo. Furthermore, in the case of a low fill level in a silo with a very long opening area, an evenly distributed material distribution over the length of the opening area cannot always be ensured.

Furthermore, it is difficult to produce uniform or predetermined patterns or structures with the surface layer, since the material is thrown off in an uncontrolled manner. A pattern that is formed, for example, from strips of different grain sizes and / or different color elements, cannot be formed with the known devices and methods.

In addition, there is the problem that when changing the material, i. H. When replacing another material from which the surface layer is to be made, the supply container specially made for the device must first be emptied and then filled with the new material, or a second special container must be stored already filled with the new material.

Also, individually adjustable mixing ratios of different materials cannot be finely metered.

The design in the area of distribution as well as the further transport of the free-flowing material within the device is decisive in optimizing the production times of surface layers with the above-mentioned properties. The work step from supplying the free-flowing material from any storage container to the surface distribution on a concrete stone surface plays an important role.

The object of the invention is therefore to propose a concrete block manufacturing device with which a free-flowing material of at least one component, preferably of two or more, individually miscible components, for the formation of an at least partial surface layer on a concrete block, regardless of the formation of the feed area, in particular the length to which the device can be fed, and yet an at least linear distribution of the material is ensured. Thus, the supply can be from any container, i. H. Containers of any shape and size are made. A transfer process into a container specially dimensioned for the system is not necessary. Furthermore, in such a device, the number of surface layers to be produced synchronously on concrete blocks arranged next to one another is not limited by the length of the feed area from a storage container.

A further object of the invention is that the component of which the material is made can be exchanged quickly and flexibly in order to be able to produce surfaces with patterns from different components one after the other without long Having to accept system downtimes.

This object is achieved by a concrete block manufacturing device according to the independent claims. Advantageous further developments of the invention are the subject of the subclaims.

DISCLOSURE OF THE INVENTION

The invention relates to a concrete block manufacturing device for distributing free-flowing material, in particular granulate, for forming an at least partially formed surface layer of such material on a concrete block base, wherein at least one component of a free-flowing material can be fed to the device, comprising at least one feed element , a portioning device and at least one opening element.

It is proposed that the portioning device has at least one linear portioning section, wherein the free-flowing material can be fed controllably via the at least one feed element along the linear portioning section, and the free-flowing material of a portioning section can then be conveyed out via a distribution path via the opening element and via this opening element to a Surface of the concrete block base body can be applied to form an at least linear trickle path, so that the areal distribution of the free-flowing material along the trickle path corresponds to the volume distribution of the free-flowing material in the portioning section. The material can advantageously be trickled out evenly distributed over the opening element, so that a planar two-dimensional distribution of the material can be achieved. In the case of an uneven distribution along the portioning section, a three-dimensional structuring of the material distribution can also be achieved.

A device is thus proposed which can be supplied with pourable infill granules from one, two or more silos to at least one feed element, wherein the granulate is controllably distributed over a length of the positioning device by relative movement of the feed element to the positioning device and is distributed at least one-dimensionally, i.e. leave the device linearly, i.e. can trickle out. The supply from the silos can, for example, take place via at least one conveyor belt. In particular, this takes place via at least one downpipe. In one embodiment, the feed element itself can form a type of silo or storage container and store and release a certain amount of free-flowing material. In this case, controllable means that both the amount and the selection of the granulate can be influenced, at least in binary sections, on or off when it is distributed along the length of the positioning device. The type and quantity of the granulate can thus be adjusted along the length of the positioning device, so that the resulting trickle pattern can be influenced or adjusted. After the free-flowing material has been temporarily stored in a controlled manner in the positioning device, the material is conveyed out of the device via a linear opening element and distributed over an unhardened surface of a concrete product, whereby the distribution device can advantageously be moved relative to the surface of the concrete product and the material accordingly flat, d. H. can be applied at least two-dimensionally on the surface.

Likewise, the plane on which the concrete block base bodies rest can be shifted relative to the device, so that an at least two-dimensional surface layer can be produced.

A two-dimensional distribution of the material takes place in particular in a predefined manner, which means that the exact position at which the material hits the surface of the concrete block base body is defined by the portioning device. In particular, the material strikes the surface vertically. This means in particular that the material leaves the portioning device without a horizontal throwing movement or without a horizontal speed. The material also preferably hits the surface without a horizontal throwing movement, so that the position of the individual elements of the free-flowing material, in which they are arranged in the longitudinal direction along the portioning device relative to one another on the distribution path, remains unchanged when the elements of the free-flowing material are on the Strike the surface of the concrete block base. In this way, a predefined structure or a regular pattern can advantageously be generated.

For this purpose, the concrete block base body can be provided with a still unconsolidated, i.e. not completely set, facing layer into which the free-flowing material is scattered and embedded, or it can have a surface that is still unconsolidated. Nevertheless, it is conceivable that the free-flowing material is applied to an already set, i.e. solidified, base body and applied in an additional fastening step, e.g. by means of an adhesive material, to an already solidified base body. The free-flowing material can also have a self-adhesive property in order to solidify on the surface.

The core concrete, ie the concrete block base body, is therefore preferably produced first, and then a surface layer is applied. In particular, the device first moves to the last concrete block base body, in order to then apply the free-flowing material to the concrete block base body on a return trip. As a result, the portioning device can advantageously be filled again while the next concrete block base bodies are being produced, since the portioning device is already at the starting position again after the material has been dispensed.

An at least partial surface layer means, in particular, that a certain amount of material that can be controlled in a linear fashion is stored in the at least one portioning section and is applied locally to the surface from there.

The free-flowing material or granulate is a granular to powdery, easily pourable solid and can for example be a mineral granulate, in particular a rock or sand granulate, a glass granulate or a plastic or wood granulate. It is also conceivable that the free-flowing material contains or consists of metallic or other granular or powdery substances. The color of the free-flowing material is preferably set off from the concrete block base material in order to create a visually pleasing effect.

It is therefore not necessary to produce special feed silos or feed containers with very long opening areas. Flowable material from at least one component from any container can be fed selectively to a device according to the invention, e.g. via a conveyor belt or downpipe, whereby a controllable linear distribution of the material is ensured when it emerges from the device. Likewise, the feed element can be designed in the form of a funnel or in the form of a hollow cylinder or a combination thereof, the opening cross-section of the feed element having a small diameter or a small longest cross-sectional dimension in relation to the length of the distributor device. After the free-flowing material has been fed to the feed element, at least one positioning section is advantageously first controllably filled with the material. The opening element can then be opened and the material can leave the linear opening element. When the material is changed, the opening element is advantageously kept closed until the new material or the new mixing ratio is distributed over the entire length of the portioning section; H. fills this in full.

The at least one feed element can be designed as a type of funnel. If several different components are supplied, each component can be stored and dispensed in a separate supply element. In one embodiment, two to six, in particular four, feed elements can be included. Two feed elements can also be filled with the same component. Each feed element can preferably be opened and closed individually so that the respective component can be dispensed at a desired point in time. In particular, a point in time can thus be determined while the at least one feed element is being moved relative to the portioning device.

For portioning the free-flowing material, the device comprises a portioning device. This ensures that the material when exiting through the opening element does not hit a concrete stone surface in an indefinable amount and that a surface layer with an unequal layer thickness is generated. By portioning the material, the amount of material that is to be conveyed out of the device can be determined. A certain amount of material can be stored in the portioning device, in particular by means of a portioning section, which can be configured, for example, as a rectangularly separated area. In this portioning section, a selected component or a selected distribution of different components can be stored precisely in position before it is released onto the surface of the concrete elements. In this way, a predetermined and regulated pattern can be generated on the surface. The linear portioning sections are designed in particular as rectangular, flat chambers, with several portioning sections being able to be arranged next to one another and / or one above the other. The length is many times greater than the width and / or the height of each portioning section.

In a preferred embodiment, the portioning device can comprise at least two portioning sections which are in particular separated from one another by separating elements. The free-flowing material can thereby be stored independently in each portioning section before it is conveyed out via the opening element on the underside of the portioning device. The separating elements can be strip-shaped made of rubber or a rubber profile. The remaining elements of the portioning device can be made of aluminum.

In a preferred embodiment, two or more components, in particular components of different colors, of the free-flowing material can be fed to the device, with each component or a mixture ratio of different components is stored in a separate feed element. For example, the mixing ratio of the components in each portioning section can be controlled individually as a function of the driving speed and a controllable delivery of the material from the respective feed element. In a further embodiment, the feed elements can be opened at different times. For example, different components can be deposited along the length of each portioning section, so that a corresponding pattern is created on the surface of the concrete block base body.

In a preferred embodiment, the device, in particular at least the portioning device with the opening element, can be moved in at least one direction orthogonal to the longitudinal extension of the opening element over the surface of the concrete block base body, so that the free-flowing material falls onto a surface to form a surface layer, i.e. H. at least one two-dimensional plane, can be distributed like a trickle. After the material has left the device on a linear trickle path, a movement of the device or the plane on which the concrete block base bodies are arranged relative to the concrete block surface or relative to the device can produce an at least two-dimensional flat surface layer from a one-dimensional distribution of the material be formed. The thickness of the surface layer can be controlled via the traveling speed of the device or the level with the concrete block base bodies.

The height of fall at which the material leaves the opening element can be between 50 mm and 100 mm, in particular 70 mm, 80 mm or 90 mm. In a preferred embodiment, the height of fall is 70 mm, the portioning device being moved very close to the surface of the concrete block base body. Due to the very low height of fall, the application of a defined structure can be supported.

In a preferred embodiment, the at least one feed element can be moved relative to the portioning device. In particular, the feed element can be releasably attached to the portioning device via a holding device. Thus, after filling, the portioning device can be detached from the feed element and from the holding device and moved independently of this over the concrete block base body. The holding device can be mounted in a stationary and immovable manner, for example on a machine frame. The holding device preferably has the length of the portioning device, so that the feed element can be moved over the entire length of the portioning section and can fill it. The holding device can be mounted on the machine frame with vibration dampers.

The feed element can preferably signal by means of a signal, in particular a control signal, that the portioning device is completely filled. In this way it can be specified that the material can then be applied directly to the portioning device on the surface of the concrete block base body. Furthermore, the feed element can receive a signal when the portioning device is completely emptied so that the feed element can then be refilled.

In a preferred embodiment, the at least one feed element for filling the portioning section can be displaceable along the portioning section and at the same time be designed for controllable dispensing of free-flowing material, and in particular have a pneumatic or electromechanical valve. In this way, the portioning section can be filled while the feed element is being moved. The feed element has, in particular, a pneumatic or electromechanical valve on the underside, so that the delivery of the component can be controlled.

In a preferred embodiment, the portioning device can comprise at least two portioning sections. These are preferably filled one after the other, as well as independently of one another, by the same or by different feed elements. In this way, for example, a pattern can also be produced on the concrete block surface if the two portioning sections are emptied one after the other while at least the portioning device is moved relative to the concrete block surface. Likewise, at least one portioning section cannot be filled in order to form a partially formed surface layer.

In a preferred embodiment, the portioning device can be rotatable so that the portioning sections can be filled one after the other through the at least one feed element. The axis of rotation runs in particular parallel to the trickle path. As a result, the individual portioning sections can be dispensed one after the other by rotating the portioning device.

In a preferred embodiment, a speed of rotation of the portioning device can correspond to a feed speed with which the device can be moved over the surface of the concrete block base body, a direction of the speed of rotation being opposite to a direction of the feed speed. This can In particular, it is ensured that the free-flowing material leaves the portioning device without a horizontal speed component and hits the surface of the concrete block base body without a horizontal speed component. For example, if the device moves over the concrete block base body in a feed direction at a known feed rate. During the movement of the device, the portioning device rotates in the opposite direction to the direction of feed speed. In particular, these speeds are coordinated with one another in such a way that the free-flowing material does not experience any speed components in the horizontal direction when the material leaves the portioning device. This makes it possible to ensure that the material can be applied to the surface in a defined and positioned manner, so that defined and, in particular, regular structures or patterns can be generated on the surface by the free-flowing material. In particular, images or letters can be generated, the device being able to function as a type of printer. With the device, defined images can accordingly be applied to a surface comparable to a printer.

In a preferred embodiment, the pourable material can be poured out of the portioning device without a horizontal speed component, a predefined structure being able to be formed on the surface of the concrete block base body. This can be achieved, in particular, in that this feed rate corresponds to the rotation speed, and this rotational movement and the feed movement, however, are designed in opposite directions to one another. As a result, there is no horizontal residual speed with which the pourable material is exposed. As a result, the two speeds are in particular coordinated with one another and regulated as a function of one another.

In a preferred embodiment, the portioning device can comprise a cellular wheel with strip-shaped dividing elements, the cellular wheel being able to exert a rotational movement about a longitudinal axis and the free-flowing material being storable between the dividing elements and being conveyed out via an opening element on the underside of the portioning device. By rotating the portioning device, the material is temporarily stored in the portioning device between the individual separating elements in individual circumferential sections which each form a portioning section. As a result of this rotation, a peripheral side section is moved from the top of the portioning device to the bottom, the material falling out of the peripheral side portion of the portioning device on the underside. Thus, the amount of material that leaves the device can be determined by the speed of rotation of the portioning device and the size of the peripheral side sections, i. H. the portioning sections. Advantageously, all separating elements are designed as flat surfaces. Furthermore, the separating elements are advantageously all arranged at the same distance from the respective adjacent separating element. The portioning device is accordingly advantageously divided into sub-sections of equal size. For example, four to ten, in particular eight, separating elements can be arranged around the circumference of the portioning device.

In a preferred embodiment, the cellular wheel can have at least three, in particular four to eight portioning sections, which can be filled in a controllable manner one after the other by the at least one feed element and / or with different components. This means that different sections can be filled with different or the same components. The opening element is preferably only opened when a plurality, in particular all portioning sections, have been filled. In the meantime, the free-flowing material is stored within the portioning sections.

In a preferred embodiment, the opening element can have the same length as the portioning device. The material can be fed over the entire length of the opening element as well as over the entire length of the portioning device.

In a preferred embodiment, the portioning device can have a hollow profile with a round or angular cross-section as a shell, and a linear slot can be formed on the upper side of the hollow profile for filling the at least one portioning section, the slot preferably running over the entire length of the portioning device. Within a hollow profile in the form of a hollow cylinder, the portioning device can also be designed with a round cross section and extend almost to the inner surface of the hollow profile. That The hollow profile also serves as a separating element so that the material cannot leave the portioning device in an area outside the opening element.

In a preferred embodiment, the portioning device can have a hollow profile with a round cross-section as a shell, and the opening element can be formed by a linear slot on the underside of the hollow profile, the slot preferably running over the entire length of the portioning device to define the trickle path. A portioning device in the form of a roller or a cellular wheel can be adapted very well to the shape of the hollow cylinder. The hollow profile also serves as a separating element so that the material cannot leave the portioning device in an area outside the opening element and can be stored to a limited extent between the separating elements up to the outlet through the opening element.

In a preferred embodiment, the feed element can be coupled to the portioning device in such a way that the feed element can be moved during filling and the feed element stands still while the pourable material is being dispensed along the trickle path. In particular, the portioning device forms that part of the device which is moved relative to the concrete block base bodies during the application of the surface layer.

In a preferred embodiment, the surface which is formed from the free-flowing material can form a surface layer for concrete products and / or paving stones with a defined structure of different colors and / or different grain sizes. Such a layer is used to form different surface structures and / or different colors and patterns, which are used in particular to form replicas of different materials and / or discolorations. In a preferred embodiment, the surface which is formed from the free-flowing material can represent an image of a defined pattern. In particular, marbling can be formed by a kind of striped pattern. Likewise, by specifically supplying different components to different parts of a portioning section and / or to different portioning sections, images can be generated on the surface of the concrete block base, since the components are deliberately dispensed by the portioning device and not discarded in an uncontrolled manner.

Advantageously, the device according to the invention can be used to produce concrete blocks for applying a surface layer of free-flowing material.

• - das rieselfähige Material aus zumindest einer Komponente, insbesondere zumindest zwei oder mehreren Komponenten, zumindest einem linienförmigen, d.h. eindimensionalen Portionierabschnitt der Portioniereinrichtung aus dem Zuführelement steuerbar zugeführt wird,
• - das rieselfähige Material über zweidimensional Öffnungselement entlang einer Verteilstrecke (L) austritt, und zumindest eindimensional auf einer Oberfläche (28) aufgetragen wird,
• - durch Verfahren der Vorrichtung, insbesondere zumindest der Portioniereinrichtung mit dem Öffnungselement, in einer Richtung orthogonal zu dem Öffnungselement und relativ zu einer Oberfläche, oder durch Verfahren der Ebene, auf der zumindest ein Betonstein-Grundkörper, insbesondere eine Mehrzahl von Betonstein-Grundkörpern, platziert ist, relativ zur Vorrichtung, das rieselfähige Material flächig auf der Oberfläche des Betonstein-Grundkörpers verteilt wird.

The device can carry out the following steps for this purpose:

• - the free-flowing material of at least one component, in particular at least two or more components, is controllably fed to at least one linear, ie one-dimensional portioning section of the portioning device from the feed element,
• - the free-flowing material via a two-dimensional opening element along a distribution path ( L. ) emerges, and at least one-dimensionally on a surface ( 28 ) is applied,
• - by moving the device, in particular at least the portioning device with the opening element, in a direction orthogonal to the opening element and relative to a surface, or by moving the plane on which at least one concrete block base body, in particular a plurality of concrete block base bodies, is placed is, relative to the device, the free-flowing material is distributed over the surface of the concrete block base body.

A production of special feed silos or feed containers with very long opening areas or specially designed opening areas is not necessary due to the movable feed elements.

Advantageously, the feed element for filling the portioning device can be moved over the entire length of the linear portioning section, so that the free-flowing material is at least one-dimensional, ie. H. linearly distributed over the length of the portioning section. The cellular wheel can advantageously exert a rotational movement about a longitudinal axis of the cellular wheel, so that the pourable material is successively applied from the portioning sections to the concrete block base body via the opening element, the rotational movement being oriented in the opposite direction to the direction of travel of the device. The speeds are preferably coordinated with one another and regulated as a function of one another.

Advantageously, the speed of rotation can correspond to the speed of travel, so that the free-flowing material leaves the portioning device without horizontal acceleration and, in particular, is applied in the vertical direction to the surface of the concrete block base body. The free-flowing material advantageously leaves the portioning device without a horizontal speed component, so that it only falls out of the portioning device vertically, in particular due to gravity and without acceleration.

The portioning device can advantageously be designed as a cellular wheel with separating elements, the pourable material being divided into portioning sections between the separating elements, and the pouring material being applied one after the other from the portioning sections onto the concrete block base body via an opening element.

Advantageously, a plurality, in particular all portioning sections of the portioning device can be filled before the device, in particular at least the portioning device with the opening element, is moved and applied to the concrete block base body. Through this a continuous delivery of components from different portioning sections can be made possible by emptying them one after the other via the opening element.

Figure list

Further advantages emerge from the present description of the drawings. Exemplary embodiments of the invention are shown in the drawings. The drawings, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

• 1 eine isometrische Darstellung einer Betonstein-Herstellvorrichtung in einer erfindungsgemäßen Ausführungsform;
• 2 eine Detailansicht der Ausführung aus 1;
• 3 eine isometrische Darstellung einer weiteren Detailansicht einer erfindungsgemäßen Betonstein-Herstellvorrichtung;
• 4 eine Detailansicht der Ausführungsform aus 3;
• 5 eine Darstellung unterschiedlicher Arbeitsschritte durchgeführt mit einer Ausführungsform einer erfindungsgemäßen Betonstein-Herstellvorrichtung;
• 6 eine Detailansicht einer weiteren erfindungsgemäßen Betonstein-Herstellvorrichtung;
• 7 eine Detailansicht der Ausführungsform aus 6;
• 8 eine weitere Detailansicht einer weiteren erfindungsgemäßen Betonstein-Herstellvorrichtung;
• 9 die Ausführungsform aus 3 in einem weiteren Arbeitsschritt;
• 10 verschiedene Arbeitsschritte durchgeführt mit einer Ausführungsform einer erfindungsgemäßen Betonstein-Herstellvorrichtung.

It shows:

• 1 an isometric view of a concrete block making device in an embodiment of the invention;
• 2 a detailed view of the execution 1 ;
• 3 an isometric illustration of a further detailed view of a concrete block manufacturing device according to the invention;
• 4th a detailed view of the embodiment from 3 ;
• 5 a representation of different work steps carried out with an embodiment of a concrete block manufacturing device according to the invention;
• 6th a detailed view of a further concrete block manufacturing device according to the invention;
• 7th a detailed view of the embodiment from 6th ;
• 8th a further detailed view of a further concrete block manufacturing device according to the invention;
• 9 the embodiment 3 in a further step;
• 10 various work steps carried out with an embodiment of a concrete block manufacturing device according to the invention.

In the figures, the same or similar components are numbered with the same reference symbols.

1 shows an isometric view of a concrete block making device 10 in one embodiment of the invention. The device 10 is designed for the distribution of free-flowing material, with a surface layer 34 (not shown) on a surface 28 of a concrete block base 44 can be trained. The concrete block making device 10 has a feed element for this 12th , a portioning device 18th and at least one opening element 20th (not visible in this illustration). The feeding element 12th is on a holding device 17th movably mounted. The holding device 17th can for example be attached to a machine frame (not shown). The feeding element 12th can be used to fill the portioning device 18th along the holding device 17th be proceeded. The portioning device can then 18th in the direction of the arrow shown relative to the feed element 12th as well as holding device 17th be proceeded. This can for example be made possible by the fact that a driving device 55 is trained. The driving device 55 may have rails that attach to the fixture 17th are slidably in contact. While moving the drive system 55 with the portioning device 18th becomes, in particular continuously, free-flowing material from the opening element 20th submitted. The pourable material is dispensed over the entire distribution line L. so that a linear giant stretch R. is trained.

In 2 shows a detailed view of the embodiment from 1 . In this illustration are the portioning devices 18th as well as the feed element 12th shown in a sectional view. The feeding element 12th is as a funnel 22nd formed, which has an opening in the lower area at which a problematic valve 16 is arranged. The pneumatic valve 16 can be opened or closed via the pneumatic control 16 'so that any amount of free-flowing material can be dispensed at any time. While the material is being dispensed, it becomes the feed element 12th along the holding device 17th , shown in 1 , procedure. A motor can do this 50 be arranged. The portioning device is in the lower area 18th recognizable, which has a rotationally symmetrical cross section. The free-flowing material can be poured through the opening with the pneumatic valve 16 directly or indirectly via a feed rail 51 , the portioning device 18th are fed. The portioning device 18th as well as the other components can in particular be made of aluminum, the funnel 22nd can for example also consist of a plastic, in particular PET. As a result, the entire device can be designed with a low weight.

An isometric representation of a further detailed view of a concrete block manufacturing device according to the invention 10 shows 3 . This view shows the situation in which the feed element 12th is filled. In this embodiment there is the feed element 12th from two funnels 22nd A different number of judges is also possible. In each of the funnels 22nd can be a different component A. or B. the trickles because of Materials 40 or a mixing ratio A. + B be stored. Both components are especially available as granules 42 educated. The funnel 22nd are filled directly separately from each other, in particular via a downpipe each 26th .

4th shows a detailed view of the embodiment of a concrete block manufacturing device according to the invention 10 the end 3 . In this illustration, the two funnels are 22nd as well as the holding device 17th shown in a sectional view. There are two openings with the pneumatic valves 16 recognizable.

5 shows a representation of different work steps, carried out with an embodiment of a concrete block manufacturing device according to the invention 10 . In 5 (a) is the first step in filling the portioning device 18th shown. At least one component is shown in this illustration A. or B. over the feed rail 51 in a first portioning section 14th the portioning device 18th fed. This is achieved in that the feed element 12th (not shown in this illustration) along the portioning section 14th is moved. The portioning section 14th has in particular the same length as the portioning device 18th on. When the first portioning section 14th is completely filled, more material remains 40 in the feed rail 51 stand. Then according to 5 (b) the portioning device 18th rotated such that an adjacent portioning section 14th can be filled. This can be controlled, for example, via a pulse counter. This is repeated until each or each desired portioning section 14th with material 40 is filled. During the filling process, a lid can be attached to the feed rail 51 be open. This can be closed after filling is complete so that no foreign material enters the portioning device 18th can get. In 5 (c) shows the subsequent step in which the material 40 is delivered. The portioning device is used for this 18th with the driving device 55 moved over the concrete block body. The material trickles as it moves 40 from the portioning device 18th out. This takes place in particular in a frequency-controlled manner until each portioning section 14th is emptied. The portioning device 18th rotates around its own axis, the direction of rotation being opposite to the direction of advance of the device 10 is aligned. This can in particular ensure that the free-flowing material 40 the portioning device 18th leaves without a horizontal speed component and without horizontal acceleration and only hits the surface of the concrete block base due to gravity. This allows a precisely defined pattern, font or image to flow through the free-flowing material 40 be formed on the surface.

You can then use the in 5 (a) can be started again. In one embodiment, the portioning device can be filled 18th take place while the driving device 55 back to the in 5 (a) position shown is moved.

In 6th is a detailed view of a further concrete block making device according to the invention 10 shown. The illustration shows the driving device 55 with the portioning device 18th . In this embodiment, the portioning device 18th at least one vibration damper 52 on the drive system 55 assembled. This allows the moving elements to be reduced. 7th shows the arrangement of the vibration damper 52 in a detailed view of the embodiment 6th .

8th shows a further detailed view of a further concrete block manufacturing device according to the invention 10 . The illustration shows a kind of silo 54 , which has at least one downpipe 26th directly to the feed element 12th can be connected. The silo 54 can for example have a plurality of different containers, so that different components A. respectively. B. through different downpipes 26th or through a common downpipe 26th the device 10 can be fed. In the illustration, the silo 54 four containers that have two downpipes 26th with two funnels 22nd of the feed element 12th are connected. Every funnel 22nd of the feed element 12th can thereby directly over the downpipe 26th be filled. In this way, for example, a stronger contrast can be achieved with mixed colors, since there is less uncontrolled mixing in the components A. respectively. B. occur. This allows in every funnel 22nd a mixed color can be filled.

9 shows the embodiment from 3 in a further step. The feed element is shown in the illustration 12th on the center of the holding device 17th , wherein the feed element 12th in the direction of the arrow along the holding device 17th is moved. While moving, the material becomes 40 submitted. This allows a linear trickle path R. be generated. This is in detail in 10 shown.

10 shows various work steps carried out with an embodiment of a concrete block manufacturing device according to the invention 10 . This shows three exemplary positions at which the portioning device is located 18th relative to the feed element 12th as well as relative to the surface 28 of the concrete block base body can be located. During the movement of the drive system 55 with the portioning device 18th becomes material continuously 40 submitted. The portioning device rotates while the material is being dispensed 18th to the Axis of rotation L2 so that each portioning section 14th can be completely emptied. The height of fall between the opening element 20th the portioning device 18th and the surface 28 of the concrete block base body can in particular be 50 mm to 150 mm. In particular, the height of fall is 80 mm to 100 mm, preferably 90 mm or 80 mm. This allows a thin, reproducible extra layer with special material to be applied.

By the concrete block manufacturing device according to the invention 10 the material is applied 40 in the direction of production, which can significantly reduce the cycle time. The positioning of the individual elements of the manufacturing device 10 can be done via laser. The holding device 17th can on the machine frame 32 be mounted, with the power supply for the holding device 17th can be done via a plug connection.

For moving the individual components, in particular the feed element 12th In particular, a 48V motor can be used. The protective extra-low voltage provided in this way provides good personal protection. At the same time, a high torque can be generated in a small space. In particular, only one cable per drive is necessary, whereby the plug connection can be made possible.

The portioning device 18th can be made from aluminum profiles. These are available by the meter, which reduces manufacturing costs. The portioning device 18th is in particular as a cellular wheel 24 trained and knows, for example, an octagon profile. Furthermore, the portioning device 18th a hollow profile as a cover 30th have a round or angular cross-section. This can ensure that all portioning sections 14th filled before the material is applied.

The dividers 38 the portioning device 18th can also be made of aluminum. However, these are preferably made from rubber, in particular from a rubber profile, which is also available by the meter.

Overall, with the concrete block manufacturing device according to the invention 10 can be easily installed directly on the trailer attachment, as it is lightweight. There is no height limit compared to normal products, which enables wide-ranging use. Since there is no massive intervention in the machine controls, there is no additional load. Furthermore, the cycle time can be optimized.

List of reference symbols

10

Concrete block making device

12th

Feed element

14th

Portioning section

16

pneumatic valve

17th

Holding device

18th

Portioning device

20th

Opening element of the portioning device

22nd

funnel

24

Cell wheel

26th

Downpipe

28

Surface of the concrete block base

30th

Hollow profile

32

Machine frame

34

Surface layer

38

Separating element of the star feeder

40

free-flowing material

42

granules

44

Concrete block body

48

Mixing ratio

50

engine

51

Feed rail

52

Vibration damper

54

silo

55

Driving device

L2

Axis of rotation

L.

Distribution line

R.

Trickle path

AWAY

component

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• EP 2910354 A1 [0005]
• DE 102014010259 A1 [0006]
• EP 1510314 B1 [0007]
• DD 246075 A1 [0008]
• EP 1827784 B4 [0009]
• EP 3546165 A1 [0010]

Claims (17)

Concrete block manufacturing device (10) for distributing free-flowing material (40), in particular granulate (42), for forming an at least partially formed surface layer (34) of such material on a concrete block base body (44), with at least one component (A ) a free-flowing material (40) can be fed to the device (10), comprising at least one feed element (12), a portioning device (18) and at least one opening element (20), characterized in that the portioning device (18) has at least one linear portioning section ( 14), wherein the free-flowing material (40) can be controllably supplied via the at least one supply element (12) along the linear portioning section (14), and the free-flowing material (40) of a portioning section (14) then via a distribution section (L) the opening element (20) can be conveyed out and via this opening element (20) onto a surface (28) of the green concrete block The body (44) can be applied to form an at least linear trickle section (R) so that the areal distribution of the free-flowing material (40) along the trickle section (R) corresponds to the volume distribution of the free-flowing material (40) in the portioning section (14). Concrete block manufacturing device (10) according to Claim 1 , characterized in that two or more components (A, B), in particular components (A, B) of different colors, of the free-flowing material (40) can be fed to the device (10), each component (A, B) or a mixing ratio of the Components (A, B) is stored in a separate feed element (12). Concrete block manufacturing device (10) according to Claim 1 or 2 , characterized in that the device (10), in particular at least the portioning device (18) with the opening element (20), can be moved in at least one direction orthogonal to the longitudinal extension of the opening element (20) over the surface of the concrete block base body (44), so that the free-flowing material (40) can be distributed in a free-flowing manner on a surface (28) to form a surface layer (34), ie at least one two-dimensional plane. Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the at least one feed element (12) can be moved relative to the portioning device (18). Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the at least one feed element (12) for filling the portioning section (14) can be moved along the portioning section (14) and at the same time is designed to dispense free-flowing material (40), and in particular a pneumatic or electromechanical valve (16). Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the portioning device (18) comprises at least two portioning sections (14). Concrete block manufacturing device (10) according to Claim 6 , characterized in that the portioning device (18) is rotatable so that the portioning sections (14) can be filled one after the other through the at least one feed element (12). Concrete block manufacturing device (10) according to Claim 7 , characterized in that a speed of rotation of the portioning device (18) corresponds to a feed speed with which the device (10) can be moved over the surface of the concrete block base body (44), a direction of the speed of rotation being opposite to a direction of the feed speed. Concrete block manufacturing device (10) according to Claim 8 , characterized in that the free-flowing material (40) can be trickled out of the portioning device (18) without a horizontal speed component, a predefined structure being able to be formed on the surface of the concrete block base body (44). Concrete block manufacturing device (10) according to one of the Claims 6 until 9 , characterized in that the portioning device (18) comprises a cellular wheel (24) with separating elements (38), the cellular wheel (24) being able to exert a rotational movement about a longitudinal axis (L2) and the free-flowing material (40) between the separating elements (38) ) can be stored and can be conveyed out via the opening element (20) on the underside of the portioning device (18). Concrete block manufacturing device (10) according to Claim 10 , characterized in that the cellular wheel (24) has at least three, in particular four to eight portioning sections (14) which can be filled one after the other by the at least one feed element (12) and / or with different components (A, B). Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the opening element (20) has the same length as the portioning device (18). Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the portioning device (18) has a hollow profile (30) with a round or angular cross-section as a shell, and a linear slot on the for filling the at least one portioning section (14) Upper side of the hollow profile (30) is formed, the slot preferably running over the entire length of the portioning device (18). Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the portioning device (18) has a hollow profile (30) with a round cross-section as a shell, and the opening element (20) through a linear slot on the underside of the hollow profile (30) ) is formed, the slot preferably running over the entire length of the portioning device (18) to define the trickle path (R). Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the feed element (12) is coupled to the portioning device (18) in such a way that the feed element (12) can be moved during filling and during the delivery of the free-flowing material (40) along the trickle path (R), the feed element (12) is stationary. Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the surface which is formed from the free-flowing material (40) is a surface layer (34) for concrete products and / or paving stones with a defined structure of different colors and / or forms different grain sizes. Concrete block manufacturing device (10) according to one of the preceding claims, characterized in that the surface which is formed from the free-flowing material (40) represents an image of a defined pattern.

Images