EP3075504B1 - Device for making concrete moulds in a moulding machine - Google Patents
Device for making concrete moulds in a moulding machine Download PDFInfo
- Publication number
- EP3075504B1 EP3075504B1 EP16159447.8A EP16159447A EP3075504B1 EP 3075504 B1 EP3075504 B1 EP 3075504B1 EP 16159447 A EP16159447 A EP 16159447A EP 3075504 B1 EP3075504 B1 EP 3075504B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mold part
- mold
- lower mold
- upper mold
- guide means
- 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.)
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Links
- 238000000465 moulding Methods 0.000 title claims description 29
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000004575 stone Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910000760 Hardened steel Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/08—Moulds provided with means for tilting or inverting
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- 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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/028—Centering the press head, e.g. using guiding pins or chamfered mould edges
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- 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
- B28B7/0097—Press moulds; Press-mould and press-ram assemblies
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- 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
- B28B7/24—Unitary mould structures with a plurality of moulding spaces, e.g. moulds divided into multiple moulding spaces by integratable partitions, mould part structures providing a number of moulding spaces in mutual co-operation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/041—Guides
Definitions
- the invention relates to a device for producing molded concrete parts in a molding machine.
- B. paving stones are typically used for machine production and contain a molding machine with a stamp unit and a molded lower part designed as a mold into which the stamp unit can engage.
- One or more mold cavities that are open at the top and bottom are usually formed in the lower part of the mold.
- the lower part of the mold is placed with a lower delimitation level of a stone field on a horizontal base that closes the lower openings of the mold.
- the mold cavities are filled with a quantity of concrete through the upper openings, which is then pressed over pressure plates arranged on the stamp unit, in which the pressure plates are sunk into the mold cavities through the upper openings. This is followed by shaking the base, typically solidifying the amount of concrete to form stable molded concrete parts. These are removed from the mold through the lower openings in the mold cavities.
- the stamp unit is connected to a typically hydraulically operated vertical movement unit of the molding machine and can be moved vertically by means of this.
- the connection can be made in a customary construction via a loading unit which usually forms an upper part of the mold as a uniformly manageable assembly with the stamp unit.
- a block mold for the production of concrete blocks which comprises an upper mold part with at least one punch with a pressure piece and a lower mold part with at least one mold cavity for use in a block molding machine, the lower mold part being movable up and down in a block molding machine.
- the lower part of the mold can be placed on a base of the block molding machine and the upper part of the mold is Can be coupled to an upward and downward movable machine holder of the block molding machine.
- a filling box of the block molding machine can be moved over the lower part of the mold and the upper part of the mold and / or the lower part of the mold has clearance to a machine frame of the block molding machine.
- a centering device is provided for aligning the lower part of the mold and the upper part of the mold in an xy plane. Exact centering of the two molded parts with respect to one another is brought about, with a conical section on the centering device slowly releasing the centering of the molded parts again after the pressure piece has dipped into the mold cavity.
- a concrete block manufacturing device which has guide devices that facilitate the alignment of the pressure plates in the mold cavities.
- the upper mold part and the lower mold part outside the pressure pieces and associated mold cavities complementary and communicating guide elements for relative movements between these two components, namely the upper mold part and the lower mold part, are provided.
- the object of the invention is to create a device for producing concrete moldings in a molding machine, in which the centering between the upper and lower mold parts is further improved, in particular to prevent damage to pressure plates when they hit the side walls of the mold cavity.
- a device for the production of concrete moldings in a molding machine which comprises an upper mold part with at least one plunger for transmitting a force to at least one pressure plate, the pressure plate being insertable in the vertical direction into an opening of a mold cavity in a mold lower part, wherein the lower mold part is surrounded by a frame which has a guide means which is connected to the upper mold part and is designed so that the lower mold part against the upper mold part can be tilted from the vertical direction during the engagement of the pressure plates in the openings of the mold cavity.
- the lower mold part is therefore not connected to the upper mold part with a positive guide which would only enable the relative positions between the upper mold part and the lower mold part to be determined.
- a guide means which enables the upper part of the form to be tilted from the vertical direction enables higher stability and longer lifetimes of the printing plates attached to the plunger, since in particular fine structures, such as, for. B. depressions or phases on the printing plates, have less wear.
- the solution according to the invention thus does not try to focus on the correct and centric installation of the lower part of the mold relative to the upper part of the mold in order to be able to prevent a pressure plate from touching an opening in the mold Pressure plates to minimize the impact of any contact.
- the invention allows a kind of self-adjustment so that previously unattained service lives can be achieved through the possibility of tilting and possibly rotating.
- the guide means is arranged on two opposite sides of the frame.
- a part of the guide means can be arranged on the two shorter sides of the mold cavity opposite one another in the region of a corner of the mold cavity.
- the guide means comprises an elongated body which is formed along the vertical direction and has side lines which are at least partially parallel to the vertical direction and which engages in an at least partially corresponding passage.
- the guide means can be formed in a simple manner by an elongated body which is guided through a corresponding passage.
- the elongated body has an outer surface that is selected over the entire extent of the body parallel to an inner dimension of the bushing.
- at least individual sections of the elongate body or parts of the bushing to be implemented as depressions with surfaces further inside, so that these cannot come into contact with the respectively corresponding part.
- such designs are not excluded within the scope of the invention.
- the elongate body is connected to the upper part of the mold and the leadthrough is connected to the lower part of the mold.
- a particularly simple implementation of the guide means is that the leadthrough is arranged in the lower part of the mold and the upper part of the mold is provided with the elongated body. Accordingly, the configuration of a lower part of the mold that has hitherto usually been used in molding machines can continue to be used, only a corresponding passage having to be present.
- the elongated body and the passage have dimensions which are selected such that a maximum value for the tilting of the lower part of the mold relative to the upper part of the mold is predetermined.
- the elongated body and the passage implement a corresponding movement limitation based on their dimensions. It is therefore not necessary to provide additional components to limit the tilting, which further simplifies the manufacture of the device according to the invention.
- the lower mold part can be tilted relative to the upper mold part by an angle which is in the range of less than 2 ° and in particular is approximately 1 °.
- the elongated body is designed as a circular cylindrical pin which engages as a bushing in a bushing arranged on the frame and provided with a circular cylindrical inner surface.
- the pin can be made of its hardened steel, for example, so that when tilting from lower mold part to upper mold part, the also hardened bushing allows a relative movement from lower mold part to upper mold part, but low wear values occur, so that the device according to the invention is not caused by material stress in the guide means with respect to its Service life is limited.
- the outer diameter of the circular cylindrical pin is selected as a function of a height of the socket along the vertical direction and an inner diameter of the socket arranged in the frame.
- Both the external diameter of the pin and the internal diameter of the frame must be used to determine the maximum possible tilt
- the height of the socket in the axial direction of the pin must be taken into account as an additional parameter. The possible tilting can thus be determined on the basis of these dimensions.
- the guide pin and / or the socket are fastened interchangeably in the guide means.
- the guide means can be screwed to the frame of the lower part of the mold laterally outside the mold cavity and outside the plunger to the side of the upper part of the mold.
- the invention can also be extended to existing molding machines according to this embodiment in that the components of the guide means are subsequently attached, for example, to the frame of the lower part of the mold and to the upper part of the mold outside of the pressure stamp.
- a device VO is shown, which is suitable for the production of concrete moldings in a molding machine.
- the device VO has an interchangeably arranged mold which is formed by a lower mold part FU and an upper mold part FB.
- the mold lower part FU has a mold cavity in the usual way, which has a correspondingly selected number of openings, so that concrete moldings can be produced in the desired number or size with the device VO.
- the upper mold part FB has a plurality of pressure plates DP, each pressure plate DP corresponding to an opening in the lower mold part FU.
- the pressure plates DP are each connected to a stamp plate ST via a pressure stamp DS.
- a loading device AE is provided above the stamp plate ST, which via the pressure stamp DS can correspondingly compress a quantity of concrete introduced into the openings of the mold cavity in the lower mold part FU as a filler material.
- the load element AE has fastening elements on its upper side which, together with other elements which, however, are not the subject of the present invention, enable the load element AE to be received in a molding machine.
- the lower mold part is usually provided with a plurality of openings, the openings forming the mold cavity being surrounded by a frame RA.
- a guide means FM is arranged, which ensures that the lower mold part FU is aligned relative to the upper mold part FO.
- the guide means FM can be divided into individual units, which as in Fig. 1 shown, for example, are arranged on two opposite sides of the usually rectangular frame RA.
- the plane spanned by the pressure plates DP is referred to below as the xy plane.
- the z-direction is located in a direction perpendicular thereto, that is to say along the pressure stamp DS.
- the guide means FM is designed so that the lower mold part FU can tilt slightly against the upper mold part FB.
- Tilting is understood to mean a deviation from the xy plane, so that when the pressure plates DP are immersed in the mold cavities of the lower mold part FU, in the event of tilting, formerly parallel sections of the upper mold part FB and the lower mold part FU are at an angle to one another.
- the tilting can not only take place along the x-direction or the y-direction, since it is provided in particular that tilting with respect to both directions should also be possible.
- FIG Fig. 2 A correspondingly tilted arrangement of the device VO is shown in FIG Fig. 2 shown. It can be seen that the stops AS, which when completely filled usually limit the immersion of the pressure plates DP into the mold cavities of the lower mold part FU, do not simultaneously rest on the frame RA or the lower mold part FU. It should be noted that the in Fig. 2 The selected representation is greatly exaggerated, since the angle that is formed between the tilted and the parallel state is in the range of approximately 1 °.
- the device VO is shown again in a side view. It can be seen that the guide means FM does not have to be arranged centrally on the frame RA of the lower mold part FU or the upper mold part FB. Furthermore is Fig. 3 it can be seen that the guide means FM has a lower portion into which a cylindrical guide pin FS can dip. The lower section is designed as a socket, the guide pin FS having a certain amount of play within the socket, which has a cylindrical inside.
- the guide pin FS is fastened to the upper mold part FB by means of a holder HA, the lower section of the guide means FM being screwable to the lower mold part FU. This procedure enables a simple retrofitting of already existing devices VO.
- Fig. 4 is the side view from Fig. 3 shown again from the opposite side.
- the attachment of the guide means FM is chosen to be identical to the opposite side, although other configurations are also conceivable here.
- a fastening screw BF is shown, which holds the guide pin FS of the guide means FM. Accordingly, it is possible, for example after prolonged operation of the device VO, to replace one guide pin FS or several guide pins FS.
- Fig. 5 the tilting of the lower mold part FU against the upper mold part FB is shown again in a schematic view.
- two guide pins FS are shown, which as already in connection with the Figs. 1 to 4 described, are attached outside the pressure stamp DS on the upper part of the form FB.
- the lower part of the mold which is in Fig. 5 is only shown as a lower support UA, can, as already mentioned, accommodate the guide pins FS outside the frame RA. Due to the selected dimensioning within the implementation of the lower support UA, tilting of the lower mold part FU against the upper mold part FB is possible, which is shown in Fig. 5 is shown schematically based on the angle WN.
- the angle WN can be less than 2 °, in particular a value of about 1 ° has proven to be advantageous. Since the limitation of the angle WN is advantageously achieved by the dimensioning of the guide pin FS in the implementation within the lower support UA, this is shown in Fig. 5 marked as detail A, shown enlarged again.
- Fig. 6 Detail A is shown in a sectional view, with a bush BU being indicated within the lower support UA, which with its circular cylindrical inner surfaces delimits the circular cylindrical outer surface of the guide pin FS.
- the inside diameter of the socket BU and the outside diameter of the guide pin FS can be calculated without difficulty if the height of the socket BU and the distances between the two guide pins FS are known. For example, in order to achieve a tilt of less than 1 ° at a distance of approx. 1.5 m between the two guide pins FS, the guide pin with an outer diameter of 40 mm can engage in a 14 mm high socket BU.
- the inside diameter of the socket BU is selected to be about 10% larger than the outside diameter of the guide pin FS in order to achieve the desired tilt of less than 1 ° of the angle WN.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
- Moulds, Cores, Or Mandrels (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur Herstellung von Betonformteilen in einer Formmaschine.The invention relates to a device for producing molded concrete parts in a molding machine.
Vorrichtungen zur Herstellung von Betonformteilen, wie z. B. Pflastersteinen werden typischerweise zur maschinellen Fertigung eingesetzt und enthalten eine Formmaschine mit einer Stempeleinheit und ein als Form ausgebildetes Formunterteil, in das die Stempeleinheit eingreifen kann. In dem Formunterteil sind üblicherweise ein oder mehrere Formnester ausgebildet, die nach oben und unten geöffnet sind. Das Formunterteil wird mit einer unteren Begrenzungsebene eines Steinfelds auf eine horizontale Unterlage aufgesetzt, die die unteren Öffnungen der Form verschließt. Durch die oberen Öffnungen werden die Formnester mit Betongemenge befüllt, das anschließend über an der Stempeleinheit angeordnete Druckplatten gepresst wird, in dem die Druckplatten durch die oberen Öffnungen in die Formnester eingesenkt werden. Anschließen erfolgt durch Rütteln typischerweise der Unterlage eine Verfestigung des Betongemenges zu formstabilen Betonformteilen. Diese werden durch die unteren Öffnungen der Formnester entformt.Devices for the production of concrete moldings, such. B. paving stones are typically used for machine production and contain a molding machine with a stamp unit and a molded lower part designed as a mold into which the stamp unit can engage. One or more mold cavities that are open at the top and bottom are usually formed in the lower part of the mold. The lower part of the mold is placed with a lower delimitation level of a stone field on a horizontal base that closes the lower openings of the mold. The mold cavities are filled with a quantity of concrete through the upper openings, which is then pressed over pressure plates arranged on the stamp unit, in which the pressure plates are sunk into the mold cavities through the upper openings. This is followed by shaking the base, typically solidifying the amount of concrete to form stable molded concrete parts. These are removed from the mold through the lower openings in the mold cavities.
Die Stempeleinheit ist mit einer typischerweise hydraulisch betätigten Vertikalbewegungseinheit der Formmaschine verbunden und mittels dieser vertikal verfahrbar. Die Verbindung kann in gebräuchlicher Bauweise über eine Auflasteinheit gegeben sein, die gewöhnlich mit der Stempeleinheit ein Formoberteil als einheitlich handhabbare Baugruppe bildet. Mittels eines Anschlags an Stempeln der Stempeleinheit wird eine gleichmäßige Steinhöhe auch bei unterschiedlicher Verdichtung des Betongemenges erreicht.The stamp unit is connected to a typically hydraulically operated vertical movement unit of the molding machine and can be moved vertically by means of this. The connection can be made in a customary construction via a loading unit which usually forms an upper part of the mold as a uniformly manageable assembly with the stamp unit. By means of a stop on the stamps of the stamp unit, a uniform stone height is achieved even if the amount of concrete is differently compacted.
Bei bekannten Formmaschinen kommt der Verbindung zwischen dem Formoberteil und dem Formunterteil eine besondere Bedeutung zu. So ist beispielsweise aus der
Die Verbindung zwischen Formoberteil und Formunterteil wurde jedoch auch in einem anderen Zusammenhang bereits im Stand der Technik näher untersucht. So ist aus der
Aus der
Eine zur letztgenannten Schrift sehr ähnliche Vorgehensweise ist in der
In der
Es ist Aufgabe der Erfindung, eine Vorrichtung zur Herstellung von Betonformteilen in einer Formmaschine zu schaffen, bei der die Zentrierung zwischen Formoberteil und Formunterteil weiter verbessert wird, um insbesondere ein Beschädigen von Druckplatten beim eventuellen Anschlagen an Seitenwänden des Formnests zu verhindern.The object of the invention is to create a device for producing concrete moldings in a molding machine, in which the centering between the upper and lower mold parts is further improved, in particular to prevent damage to pressure plates when they hit the side walls of the mold cavity.
Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen der Erfindung sind jeweils Gegenstand der Unteransprüche. Diese können in technologisch sinnvoller Weise miteinander kombiniert werden. Die Beschreibung, insbesondere im Zusammenhang mit der Zeichnung, charakterisiert und spezifiziert die Erfindung zusätzlich.This object is achieved by the features of claim 1. Further advantageous refinements of the invention are each subject matter of the subclaims. These can be combined with one another in a technologically sensible way. The description, in particular in connection with the drawing, additionally characterizes and specifies the invention.
Gemäß der Erfindung wird eine Vorrichtung zur Herstellung von Betonformteilen in einer Formmaschine geschaffen, die ein Formoberteil mit wenigstens einem Druckstempel zur Übertragung einer Kraft auf wenigstens eine Druckplatte umfasst, wobei die Druckplatte in vertikaler Richtung in eine Öffnung eines Formnestes in einem Formunterteil einführbar ist, wobei das Formunterteil von einem Rahmen umgeben ist, der ein mit dem Formoberteil verbundenes Führungsmittel aufweist, das so ausgebildet ist, dass das Formunterteil gegen das Formoberteil aus der vertikalen Richtung während des Eingreifens der Druckplatten in die Öffnungen des Formnests kippbar ist.According to the invention, a device for the production of concrete moldings in a molding machine is created which comprises an upper mold part with at least one plunger for transmitting a force to at least one pressure plate, the pressure plate being insertable in the vertical direction into an opening of a mold cavity in a mold lower part, wherein the lower mold part is surrounded by a frame which has a guide means which is connected to the upper mold part and is designed so that the lower mold part against the upper mold part can be tilted from the vertical direction during the engagement of the pressure plates in the openings of the mold cavity.
Erfindungsgemäß wird daher das Formunterteil mit dem Formoberteil nicht mit einer Zwangsführung verbunden, die lediglich eine Festlegung der Relativpositionen zwischen Formoberteil und Formunterteil ermöglichen würde. Es hat sich überraschend gezeigt, dass ein Führungsmittel, welches ein Kippen des Formoberteils aus der vertikalen Richtung ermöglicht, höhere Standfestigkeiten und längere Lebensdauern der an dem Druckstempel befestigten Druckplatten ermöglicht, da insbesondere feine Strukturen, wie z. B. Einsenkungen oder Phasen an den Druckplatten, geringeren Verschleiß aufweisen. Die erfindungsgemäße Lösung versucht somit nicht den korrekten und zentrischen Einbau des Formunterteils relativ zum Formoberteil in den Mittelpunkt zu stellen, um ein Berühren einer Druckplatte mit einer Öffnung der Form verhindern zu können, sondern ermöglicht es, durch die Beschaffung eines zusätzlichen Freiheitsgrades in der Bewegung der Druckplatten Auswirkungen bei eventuellen Berührungen gering zu halten. Darüber hinaus wird durch die Führung des Formunterteils im Führungsmittel eine Ausgangsposition für die Lage des Formunterteils relativ zum Formoberteil geschaffen, die ein anschlagfreies Einführen der Druckplatten zur Folge haben kann. Anstelle jedoch die exakte Relativpositionierung vorzugeben, die darüber hinaus bei bisherigen, aus dem Stand der Technik bekannten Systemen starr vorgegeben ist, läßt die Erfindung eine Art Selbstjustierung zu, so dass durch die Möglichkeit des Verkippens und gegebenenfalls Verdrehens bisher unerreichte Standzeiten erzielt werden können.According to the invention, the lower mold part is therefore not connected to the upper mold part with a positive guide which would only enable the relative positions between the upper mold part and the lower mold part to be determined. It has surprisingly been shown that a guide means which enables the upper part of the form to be tilted from the vertical direction enables higher stability and longer lifetimes of the printing plates attached to the plunger, since in particular fine structures, such as, for. B. depressions or phases on the printing plates, have less wear. The solution according to the invention thus does not try to focus on the correct and centric installation of the lower part of the mold relative to the upper part of the mold in order to be able to prevent a pressure plate from touching an opening in the mold Pressure plates to minimize the impact of any contact. In addition, by guiding the lower mold part in the guide means, a starting position for the position of the lower mold part relative to the upper mold part is created, which can result in the pressure plates being inserted without a stop. However, instead of specifying the exact relative positioning, which is also rigidly predefined in previous systems known from the prior art, the invention allows a kind of self-adjustment so that previously unattained service lives can be achieved through the possibility of tilting and possibly rotating.
Gemäß einer Ausführungsform der Erfindung ist das Führungsmittel auf jeweils zwei gegenüberliegenden Seiten des Rahmens angeordnet.According to one embodiment of the invention, the guide means is arranged on two opposite sides of the frame.
Demnach ist es möglich, das Führungsmittel in einzelne Bestandteile aufzuspalten, wobei es für ausreichend erachtet wird, lediglich zwei gegenüber liegende Seiten des Rahmens mit Teilen des Führungsmittels zu versehen. Hierbei kann beispielsweise bei einem rechteckförmigen Formnest jeweils ein Teil des Führungsmittels auf den beiden kürzeren Seiten des Formnests gegenüber liegend im Bereich einer Ecke des Formnestes angeordnet sein. Eine derartige Ausgestaltung ermöglicht zum einen das Verkippen des Formunterteils relativ zum Formoberteil und ermöglicht dennoch die Festlegung einer definierten Ausgangsposition.Accordingly, it is possible to split the guide means into individual components, it being considered sufficient to provide only two opposite sides of the frame with parts of the guide means. In the case of a rectangular mold cavity, for example, a part of the guide means can be arranged on the two shorter sides of the mold cavity opposite one another in the region of a corner of the mold cavity. Such a configuration enables the lower mold part to be tilted relative to the upper mold part and nevertheless enables a defined starting position to be established.
Erfindungsgemäß umfasst das Führungsmittel einen entlang der vertikalen Richtung ausgebildeten länglichen Körper mit zur vertikalen Richtung wenigstens abschnittsweise parallelen Seitenlinien, der in eine zumindest teilweise korrespondierende Durchführung eingreift.According to the invention, the guide means comprises an elongated body which is formed along the vertical direction and has side lines which are at least partially parallel to the vertical direction and which engages in an at least partially corresponding passage.
Das Führungsmittel läßt sich auf einfache Weise durch einen länglichen Körper bilden, der durch eine entsprechende Durchführung geführt ist. Eine Möglichkeit besteht darin, dass der längliche Körper eine Außenfläche aufweist, die über die komplette Ausdehnung des Körpers parallel zu einer Innenabmessung der Durchführung gewählt ist. Dabei ist es jedoch auch möglich, dass zumindest einzelne Abschnitte des länglichen Körpers oder Teile der Durchführung als Einsenkungen mit weiter innen liegenden Flächen ausgeführt werden, so dass diese nicht in Kontakt mit dem jeweils korrespondierenden Teil treten können. Derartige Ausführungen sind im Rahmen der Erfindung jedoch nicht ausgeschlossen. Um das erfindungsgemäße Verkippen des Formunterteils gegen das Formoberteil zu ermöglichen, ist es lediglich vorgesehen, dass zwischen dem Außenumfang des länglichen Körpers und dem Innenumfang der Durchführung ein die Verkippung begrenzendes Spiel besteht.The guide means can be formed in a simple manner by an elongated body which is guided through a corresponding passage. One possibility is that the elongated body has an outer surface that is selected over the entire extent of the body parallel to an inner dimension of the bushing. However, it is also possible here for at least individual sections of the elongate body or parts of the bushing to be implemented as depressions with surfaces further inside, so that these cannot come into contact with the respectively corresponding part. However, such designs are not excluded within the scope of the invention. In order to enable the lower mold part to be tilted against the upper mold part according to the invention, it is only provided that there is play that limits the tilting between the outer circumference of the elongated body and the inner circumference of the passage.
Erfindungsgemäß sind der längliche Körper mit dem Formoberteil und die Durchführung mit dem Formunterteil verbunden.According to the invention, the elongate body is connected to the upper part of the mold and the leadthrough is connected to the lower part of the mold.
Eine besonders einfache Realisierung des Führungsmittels besteht darin, dass die Durchführung im Formunterteil angeordnet wird und das Formoberteil mit dem länglichen Körper versehen wird. Demnach kann die bisher in Formmaschinen üblicherweise zum Einsatz kommende Ausgestaltung eines Formunterteils weiter verwendet werden, wobei lediglich eine entsprechende Durchführung vorhanden sein muss.A particularly simple implementation of the guide means is that the leadthrough is arranged in the lower part of the mold and the upper part of the mold is provided with the elongated body. Accordingly, the configuration of a lower part of the mold that has hitherto usually been used in molding machines can continue to be used, only a corresponding passage having to be present.
Erfindungsgemäß weisen der längliche Körper und die Durchführung Abmessungen auf, die so gewählt sind, dass ein Maximalwert der Verkippung des Formunterteils gegen das Formoberteil vorgegeben ist.According to the invention, the elongated body and the passage have dimensions which are selected such that a maximum value for the tilting of the lower part of the mold relative to the upper part of the mold is predetermined.
Um das Kippen des Formunterteils gegen das Formunterteil zu begrenzen, d. h. einen Maximalwert der Verkippung zu definieren ist es insbesondere vorgesehen, dass der längliche Körper und die Durchführung anhand ihrer Abmessung eine entsprechende Bewegungsbegrenzung durchführen. Es ist daher nicht nötig, zusätzliche Bauteile zur Begrenzung der Verkippung vorzusehen, was die Herstellung der erfindungsgemäßen Vorrichtung zusätzlich vereinfacht.In order to limit the tilting of the mold base against the mold base, i. H. To define a maximum value of the tilt, it is provided in particular that the elongated body and the passage implement a corresponding movement limitation based on their dimensions. It is therefore not necessary to provide additional components to limit the tilting, which further simplifies the manufacture of the device according to the invention.
Gemäß einer weiteren Ausführungsform der Erfindung ist das Formunterteil gegen das Formoberteil um einen Winkel kippbar, der im Bereich von weniger als 2° liegt und insbesondere ungefähr 1° beträgt.According to a further embodiment of the invention, the lower mold part can be tilted relative to the upper mold part by an angle which is in the range of less than 2 ° and in particular is approximately 1 °.
Um die eingangs erwähnte Verbesserung der Standzeiten von Druckplatten beim Einsatz in Formmaschinen zu erreichen, ist es nicht notwendig, die Verkippung zwischen Formunterteil und Formoberteil über einen großen Bereich zuzulassen. Vielmehr zeigen Werte, die weniger als 2° betragen, bereits eine ausreichende Verbesserung im Vergleich zu den im Stand der Technik üblicherweise vorgesehenen Zwangszentrierungen. In Einzelfällen lassen sich die beispielsweise über die Außenabmessungen des länglichen Körpers und der Durchführung begrenzten Werte für die Verkippung auch experimentell bestimmen.In order to achieve the improvement in the service life of printing plates when used in molding machines, as mentioned at the beginning, it is not necessary to tilt them between the lower part of the mold and the upper part of the mold over a large area. Rather, values which are less than 2 ° already show a sufficient improvement compared to the forced centering usually provided in the prior art. In individual cases, the values for the tilt, which are limited, for example, by the external dimensions of the elongated body and the implementation, can also be determined experimentally.
Erfindungsgemäß ist der längliche Körper als kreiszylindrischer Stift ausgeführt, der in eine am Rahmen angeordnete mit einer kreiszylindrischen Innenfläche versehene Buchse als Durchführung eingreift.According to the invention, the elongated body is designed as a circular cylindrical pin which engages as a bushing in a bushing arranged on the frame and provided with a circular cylindrical inner surface.
Der Stift kann beispielsweise aus seinem gehärteten Stahl hergestellt sein, so dass beim Verkippen von Formunterteil zu Formoberteil die ebenfalls gehärtete Buchse zwar eine Relativbewegung von Formunterteil zu Formoberteil ermöglichen, dabei jedoch geringe Verschleißwerte auftreten, so dass die erfindungsgemäße Vorrichtung nicht durch Materialbelastung im Führungsmittel bezüglich ihrer Standzeit limitiert ist.The pin can be made of its hardened steel, for example, so that when tilting from lower mold part to upper mold part, the also hardened bushing allows a relative movement from lower mold part to upper mold part, but low wear values occur, so that the device according to the invention is not caused by material stress in the guide means with respect to its Service life is limited.
Erfindungsgemäß ist der Außendurchmesser des kreiszylindrischen Stifts in Abhängigkeit einer Höhe der Buchse entlang der vertikalen Richtung und einem Innendurchmesser der im Rahmen angeordneten Buchse gewählt.According to the invention, the outer diameter of the circular cylindrical pin is selected as a function of a height of the socket along the vertical direction and an inner diameter of the socket arranged in the frame.
Zur Festlegung der maximal möglichen Verkippung müssen sowohl Außendurchmesser des Stifts als auch Innendurchmesser des Rahmens herangezogen werden, wobei als zusätzlicher Parameter die in axiale Richtung des Stifts vorliegende Höhe der Buchse berücksichtigt werden muss. Aufgrund dieser Abmessungen kann somit die mögliche Verkippung festgelegt sein.Both the external diameter of the pin and the internal diameter of the frame must be used to determine the maximum possible tilt The height of the socket in the axial direction of the pin must be taken into account as an additional parameter. The possible tilting can thus be determined on the basis of these dimensions.
Gemäß einer weiteren Ausführungsform der Erfindung sind der Führungsstift und/oder die Buchse austauschbar in dem Führungsmittel befestigt.According to a further embodiment of the invention, the guide pin and / or the socket are fastened interchangeably in the guide means.
Aufgrund der Bewegung zwischen Führungsstift und Buchse, die insbesondere auch bei der bei Formmaschinen üblichen Verdichtung mittels eines Rüttlers auftritt, kann es in bestimmten Anwendungsfällen vorteilhaft sein, diese Bestandteile austauschbar auszuführen, um bei Verschleiß eine schnelle und einfache Möglichkeit des Austausches zu haben.Due to the movement between the guide pin and the bushing, which also occurs in particular with the compression by means of a vibrator, which is common in molding machines, it can be advantageous in certain applications to make these components replaceable in order to have a quick and easy option for replacement when worn.
Gemäß einer weiteren Ausführungsform der Erfindung ist das Führungsmittel an den Rahmen des Formunterteils seitlich außerhalb des Formnests und außerhalb der Druckstempel seitlich des Formoberteils anschraubbar.According to a further embodiment of the invention, the guide means can be screwed to the frame of the lower part of the mold laterally outside the mold cavity and outside the plunger to the side of the upper part of the mold.
Die Erfindung läßt sich auch auf bereits bestehende Formmaschinen gemäß dieser Ausführungsform erweitern, in dem die Bestandteile des Führungsmittels nachträglich beispielsweise am Rahmen des Formunterteils sowie am Formoberteil außerhalb der Druckstempel angebracht werden.The invention can also be extended to existing molding machines according to this embodiment in that the components of the guide means are subsequently attached, for example, to the frame of the lower part of the mold and to the upper part of the mold outside of the pressure stamp.
Nachfolgend werden einige Ausführungsbeispiele anhand der Zeichnungen näher erläutert. Es zeigen:
- Fig. 1
- eine Vorrichtung zur Herstellung von Betonformteilen gemäß einer Ausführungsform der Erfindung in einer Seitenansicht,
- Fig. 2
- die Vorrichtung aus
Fig. 1 in einer gekippten Position in einer Seitenansicht, - Fig. 3
- die Vorrichtung aus
Fig. 1 in einer weiteren Seitenansicht, - Fig. 4
- die Vorrichtung aus
Fig. 1 in einer Seitenansicht aus einer in Vergleich zuFig. 3 gegenüber liegender Richtung, - Fig. 5
- schematische Bestandteile der Vorrichtung aus
Fig. 1 , und - Fig. 6
- ein Detail der Vorrichtung aus
Fig. 5 in einer schematischen Ansicht.
- Fig. 1
- a device for the production of concrete moldings according to an embodiment of the invention in a side view,
- Fig. 2
- the device off
Fig. 1 in a tilted position in a side view, - Fig. 3
- the device off
Fig. 1 in another side view, - Fig. 4
- the device off
Fig. 1 in a side view from a compared toFig. 3 opposite direction, - Fig. 5
- schematic components of the device
Fig. 1 , and - Fig. 6
- a detail of the device
Fig. 5 in a schematic view.
In den Figuren sind gleiche oder funktional gleich wirkende Bauteile mit den gleichen Bezugszeichen versehen.In the figures, identical or functionally identical components are provided with the same reference symbols.
In
Das Formoberteil FB weist eine Vielzahl von Druckplatten DP auf, wobei jede Druckplatte DP mit einer Öffnung im Formunterteil FU korrespondiert. Die Druckplatten DP sind jeweils über einen Druckstempel DS mit einer Stempelplatte ST verbunden.The upper mold part FB has a plurality of pressure plates DP, each pressure plate DP corresponding to an opening in the lower mold part FU. The pressure plates DP are each connected to a stamp plate ST via a pressure stamp DS.
Oberhalb der Stempelplatte ST ist eine Auflasteinrichtung AE vorgesehen, die über die Druckstempel DS ein in die Öffnungen des Formnests im Formunterteil FU eingebrachtes Betongemenge als Füllmaterial entsprechend komprimieren kann. Das Auflastelement AE weist auf seiner Oberseite Befestigungselemente auf, die zusammen mit weiteren Elementen, die jedoch nicht Gegenstand der vorliegenden Erfindung sind, eine Aufnahme des Auflastelements AE in einer Formmaschine ermöglichen.A loading device AE is provided above the stamp plate ST, which via the pressure stamp DS can correspondingly compress a quantity of concrete introduced into the openings of the mold cavity in the lower mold part FU as a filler material. The load element AE has fastening elements on its upper side which, together with other elements which, however, are not the subject of the present invention, enable the load element AE to be received in a molding machine.
Das Formunterteil wird üblicherweise mit einer Vielzahl von Öffnungen bereit gestellt, wobei die das Formnest bildenden Öffnungen von einem Rahmen RA umgeben sind. Zwischen dem Rahmen RA des Formunterteils FU und dem Formoberteil FO ist ein Führungsmittel FM angeordnet, das für eine Ausrichtung des Formunterteils FU relativ zum Formoberteil FO sorgt.The lower mold part is usually provided with a plurality of openings, the openings forming the mold cavity being surrounded by a frame RA. Between the frame RA of the lower mold part FU and the upper mold part FO, a guide means FM is arranged, which ensures that the lower mold part FU is aligned relative to the upper mold part FO.
Das Führungsmittel FM kann dabei in einzelne Einheiten unterteilt sein, die wie in
Eine entsprechend verkippte Anordnung der Vorrichtung VO ist in
In
In
In
In
Claims (5)
- Device for producing concrete moldings in a molding machine, which comprises an upper mold part (FB) having at least one pressure ram (DS) for transmitting a force to at least one pressure plate (DP), and a lower mold part (FU) having a mold cavity that has at least one opening, it being possible for the pressure plate (DP) to be introduced in the vertical direction into the opening in the mold cavity in the lower mold part (FU), the lower mold part (FU) being surrounded by a frame (RA) which has a guide means (FM) that is connected to the upper mold part (FB) and comprises an elongate body which is formed in the vertical direction, is designed as a circular-cylindrical pin (FS), is connected to the upper mold part (FB) and has side lines which are at least partially parallel to the vertical direction, which body engages in an at least partially corresponding feed-through, which is a bushing (BU) that is arranged on the frame (RA) and is provided with a circular-cylindrical inner surface, and is designed such that the lower mold part (FU) can tilt relative to the upper mold part (FB) from the vertical direction during the engagement of the pressure plates (DP) into the openings in the mold cavity, characterized in that the elongate body and the feed-through have dimensions which are selected such that a maximum value of the tilt of the lower mold part (FU) relative to the upper mold part (FB) is specified, and that the outer diameter of the circular-cylindrical pin (FS) is selected on the basis of a height of the bushing (BU) in the vertical direction and an inner diameter of the bushing (BU) arranged on the frame (RA).
- Device according to claim 1, wherein the guide means (FM) is arranged on two opposite sides of the frame (RA).
- Device according to either claim 1 or claim 2, wherein the lower mold part (FU) can be tilted relative to the upper mold part (FB) by an angle (WN) which is in the range of less than 2° and in particular is approximately 1°.
- Device according to any of claims 1 to 3, wherein the guide pin (FS) and/or the bushing (BU) are fastened in the guide means (FM) in an exchangeable manner.
- Device according to any of claims 1 to 4, wherein the guide means (FM) can be screwed onto the frame (RA) of the lower mold part (FU) laterally outside the mold cavity and, outside the pressure ram (DS), laterally of the upper mold part (FB).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL16159447T PL3075504T3 (en) | 2015-03-16 | 2016-03-09 | Device for making concrete moulds in a moulding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102015103829.3A DE102015103829A1 (en) | 2015-03-16 | 2015-03-16 | Device for the production of concrete moldings in a molding machine |
Publications (2)
Publication Number | Publication Date |
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EP3075504A1 EP3075504A1 (en) | 2016-10-05 |
EP3075504B1 true EP3075504B1 (en) | 2022-01-05 |
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EP16159447.8A Active EP3075504B1 (en) | 2015-03-16 | 2016-03-09 | Device for making concrete moulds in a moulding machine |
Country Status (8)
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US (1) | US9610708B2 (en) |
EP (1) | EP3075504B1 (en) |
CA (1) | CA2923914C (en) |
DE (1) | DE102015103829A1 (en) |
DK (1) | DK3075504T3 (en) |
ES (1) | ES2905475T3 (en) |
HU (1) | HUE057943T2 (en) |
PL (1) | PL3075504T3 (en) |
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CN106596238B (en) * | 2016-10-19 | 2023-07-21 | 浙江科技学院(浙江中德科技促进中心) | Integral forming manufacturing mould for upper and lower discs of rock structural surface |
DE102019108574A1 (en) * | 2019-04-02 | 2020-10-08 | Kobra Formen Gmbh | Guide device in a molding machine and molding machine with such a guide device |
DE102019135427A1 (en) | 2019-12-20 | 2021-06-24 | Kobra Formen Gmbh | Device for the production of concrete blocks |
Citations (4)
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DE102004004188A1 (en) | 2004-01-28 | 2005-10-06 | Manfred Lebherz | Concrete cinder block manufacturing equipment, has supporting plate formed between form lower part and form upper part, where duct units are provided between parts for relative motion between them |
DE102005048930A1 (en) | 2004-11-12 | 2006-05-18 | Rampf Formen Gmbh | Block mould for production of concrete blocks, has mould upper piece and/or mould lower piece with play at chassis of block moulding machine, and centering device provided for aligning mould lower and upper pieces in xy plane |
US20060197259A1 (en) | 2005-03-01 | 2006-09-07 | Rampf Molds Industries, Inc. | Apparatus and method for a mold alignment system |
DE102008017964A1 (en) | 2008-04-08 | 2009-10-15 | Rampf Formen Gmbh | Plant for the production of shaped bricks |
Family Cites Families (4)
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US2479350A (en) * | 1947-10-03 | 1949-08-16 | Jr John C Haggart | Apparatus for molding reflector devices |
DE3638207A1 (en) | 1986-11-08 | 1988-05-11 | Netter Gmbh | Process for producing purpose-made concrete blocks, and apparatus for carrying out the process |
US4941813A (en) * | 1988-12-13 | 1990-07-17 | Grubb Jr Lloyd T | Mold guidance system for block making machinery |
DE19924926C1 (en) | 1999-05-31 | 2000-04-13 | Hubaleck Gmbh U Co Kg | Stone forming machine for masonry stones has upper and lower mould sections with guide for lower section |
-
2015
- 2015-03-16 DE DE102015103829.3A patent/DE102015103829A1/en not_active Withdrawn
-
2016
- 2016-03-09 EP EP16159447.8A patent/EP3075504B1/en active Active
- 2016-03-09 DK DK16159447.8T patent/DK3075504T3/en active
- 2016-03-09 ES ES16159447T patent/ES2905475T3/en active Active
- 2016-03-09 HU HUE16159447A patent/HUE057943T2/en unknown
- 2016-03-09 PL PL16159447T patent/PL3075504T3/en unknown
- 2016-03-15 US US15/070,209 patent/US9610708B2/en active Active
- 2016-03-16 CA CA2923914A patent/CA2923914C/en active Active
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DE102004004188A1 (en) | 2004-01-28 | 2005-10-06 | Manfred Lebherz | Concrete cinder block manufacturing equipment, has supporting plate formed between form lower part and form upper part, where duct units are provided between parts for relative motion between them |
DE102005048930A1 (en) | 2004-11-12 | 2006-05-18 | Rampf Formen Gmbh | Block mould for production of concrete blocks, has mould upper piece and/or mould lower piece with play at chassis of block moulding machine, and centering device provided for aligning mould lower and upper pieces in xy plane |
US20060197259A1 (en) | 2005-03-01 | 2006-09-07 | Rampf Molds Industries, Inc. | Apparatus and method for a mold alignment system |
DE102008017964A1 (en) | 2008-04-08 | 2009-10-15 | Rampf Formen Gmbh | Plant for the production of shaped bricks |
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Also Published As
Publication number | Publication date |
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HUE057943T2 (en) | 2022-06-28 |
US9610708B2 (en) | 2017-04-04 |
CA2923914C (en) | 2018-05-29 |
DE102015103829A1 (en) | 2016-09-22 |
DK3075504T3 (en) | 2022-02-07 |
CA2923914A1 (en) | 2016-09-16 |
EP3075504A1 (en) | 2016-10-05 |
PL3075504T3 (en) | 2022-03-21 |
ES2905475T3 (en) | 2022-04-08 |
US20160271828A1 (en) | 2016-09-22 |
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