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EP1243387A2 - Mould frame - Google Patents

Mould frame Download PDF

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Publication number
EP1243387A2
EP1243387A2 EP02000440A EP02000440A EP1243387A2 EP 1243387 A2 EP1243387 A2 EP 1243387A2 EP 02000440 A EP02000440 A EP 02000440A EP 02000440 A EP02000440 A EP 02000440A EP 1243387 A2 EP1243387 A2 EP 1243387A2
Authority
EP
European Patent Office
Prior art keywords
frame
mold
cross
longitudinal
mold insert
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP02000440A
Other languages
German (de)
French (fr)
Other versions
EP1243387B1 (en
EP1243387A3 (en
Inventor
Rudolf Braungardt
Erwin Schmucker
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobra Formen GmbH
Original Assignee
Kobra Formen und Anlagenbau GmbH
Kobra Formen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kobra Formen und Anlagenbau GmbH, Kobra Formen GmbH filed Critical Kobra Formen und Anlagenbau GmbH
Priority to DK02000440T priority Critical patent/DK1243387T3/en
Priority to DE20211027U priority patent/DE20211027U1/en
Publication of EP1243387A2 publication Critical patent/EP1243387A2/en
Publication of EP1243387A3 publication Critical patent/EP1243387A3/en
Application granted granted Critical
Publication of EP1243387B1 publication Critical patent/EP1243387B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/081—Vibration-absorbing means
    • 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
    • B28B7/0002—Auxiliary parts or elements of the mould
    • B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
    • 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
    • B28B7/0029—Moulds or moulding surfaces not covered by B28B7/0058 - B28B7/36 and B28B7/40 - B28B7/465, e.g. moulds assembled from several parts

Definitions

  • the invention relates to a mold frame for a mold for production of concrete moldings, in particular concrete blocks, consisting from longitudinal and transverse frame parts that are connected to each other and surround a mold insert containing several mold cavities.
  • a molding frame which consists of consists of two longitudinal frame parts and two transverse frame parts are welded together at the four corners of the mold frame.
  • the outer sides of the cross frame part have a flange, provided for connection to a lifting frame of the molding machine is.
  • the inside of the mold frame are as sloping surfaces trained, which serve to accommodate the mold insert.
  • the Outside of the mold insert consist of triangular Prisms that when inserting the mold insert into the welded Place the mold frame on the sloping surfaces of the mold frame.
  • To hold the mold insert in the mold frame are from screwed to the bottom of the form frame pressure bars, which with a sloping surface at the bottom of the triangular prisms of the Form insert. Between the sloping surfaces of the mold frame and the mold insert are elastic damping plates inserted.
  • the invention has for its object a form frame to create the type mentioned above, the high demands the jogger has grown and is quick and easy The mold insert can be changed.
  • the object is achieved in that in each case a longitudinal frame part and a transverse frame part at the four corners the form frame positively and releasably connected to each other are.
  • a positive and non-rotatable screw connection of the frame parts achieved in that each cross frame part on its two Front sides has a cross-section polygonal pin, which in a corresponding one, at the two ends of each longitudinal frame part recess recessed into the inside, polygonal in cross section engages releasably and non-rotatably, or vice versa, and both frame parts releasably connected to each other by a clamping screw are.
  • the pins of the Cross frame parts and the depressions of the longitudinal frame parts each a common, horizontally and centrally arranged through hole for the clamping screw on the in a threaded hole of the cross frame part engages. Due to the relatively long length the tension screw increases the elastic compliance and hence the durability of the frame connection.
  • the threaded hole is arranged in a screw nut, which can be inserted loosely into a recess in the cross frame part is.
  • the threaded bore is advantageously in a cylindrical Screw nut arranged transversely to the cylinder axis, whereby the nut in a vertical hole in the cross frame part is stored. Because the nut is in the hole can turn, loads on the clamping screw a superimposed bending stress, the z. B. due to an oblique Support of the nut is avoided.
  • the mold insert is held in the mold frame by that the connection between the mold frame and mold insert is a Tongue and groove connection is available on all four sides or only two opposite sides of the mold insert and the mold frame is provided.
  • the mold insert is on the molding machine stretched on the vibrating table so that the forces caused by the Shake on the mold insert through the tongue and groove connection cushioned and tension-reducing from mold insert to Form frame and thus via the flange strip to the molding machine be directed.
  • the groove and Spring connection between the mold frame and mold insert one worked into the inside of the cross and / or longitudinal frame parts, in cross-section triangular groove, one in cross-section also triangular on the outside of the mold frame molded spring engages.
  • the transfer of forces and the effect of vibrations on vibrations the molding machine are additionally reduced if between the Groove of the mold frame and the tongue of the mold insert or vice versa Damping elements are arranged.
  • the Damping elements on the contact surfaces of the spring of the mold insert be glued on or embedded in them.
  • connection between the frame parts of the mold frame is highly resilient and durable. That by the vibrating forces and the pressing of the mold insert on the vibrating table Torques within the screw connection between the frame parts are formed by the polygonal pegs and recesses, that prevent the frame parts from twisting, fully absorbed.
  • the molded frame screwed in this way has the stability of a welded frame, but with the advantage of a simple assembly, which is precise via the polygons Positioning allows.
  • the exchange of the mold insert during a repair is due to the quick-release screw connection and the non-destructive loosening of the connection between The mold frame and mold insert can also be carried out easily by the customer.
  • damping elements inside the tongue and groove connection between the mold frame and mold insert the efficiency of the vibration increases considerably, because the vibrating energy largely remains in the mold insert.
  • the compression and the strength of the finished concrete blocks increases thereby by up to 25%.
  • the mold frame 1 of a shape, not shown, for machine Production of concrete blocks consists of two parallel ones Longitudinal frame parts 2 and two parallel cross frame parts 3, the are screwed together at the four corners of the mold frame.
  • a mold insert 5 clamped with several mold nests 6.
  • each cross frame part 3 On the two end faces of each cross frame part 3 is in the extension the longitudinal axis of the cross frame part 3 each a polygon Shaped pin 7 with a square cross section.
  • One of the pins 7 corresponding, square recess 8 is in the inside milled at the ends of each longitudinal frame part 2.
  • a through hole 9 for a clamping screw 10 In the middle of Pin 7 and in the recess 8 is parallel to the longitudinal axis of the Cross frame part 3 a through hole 9 for a clamping screw 10 provided.
  • the free end of the clamping screw 10 will after joining the two frame parts 2, 3 into a threaded hole 11 screwed a nut 12.
  • the nut 12 is cylindrical and in a vertical shape Through hole 9 at right angles intersecting bore 13 in Cross frame part 3 inserted loosely and rotatably mounted.
  • the Screw nut 12 is aligned in the bore 13 so that the Clamping screw 10 in the threaded bore running transversely to the cylinder axis 11 can intervene
  • the pin 7 on the longitudinal frame parts 2 and the depressions 8 can be arranged on the transverse frame parts 3.
  • Cross frame part 2, 3 has a continuous groove 14 for one Corresponding spring 15, which is continuously on the four outer sides of the mold insert 5 is arranged and engages in the groove 14.
  • Corresponding spring 15 which is continuously on the four outer sides of the mold insert 5 is arranged and engages in the groove 14.
  • the tongue and groove connection 14 formed in this way, 15 between mold frame 1 and mold insert 5 is on all four sides of the mold frame and the mold insert. It is a version is also possible in which the tongue and groove connection 14, 15 only on two opposite longitudinal or transverse frame parts 2, 3 is arranged.
  • Fig. 4 shows another embodiment of the tongue and groove connection between mold frame 1 and mold insert 5.
  • a continuous, triangular Groove 16 incorporated, also triangular continuous spring 17 which engages on the outside on the transverse sides the mold insert 5 is located.
  • the tongue and groove connection 16, 17 can also on all four sides of the mold frame 1 and the mold insert 5 be arranged.
  • elastic damping plates 18 arranged in Recesses 19 of the contact surfaces 20 of the spring 17 are inserted.
  • the damping plates 18 can also on the contact surfaces 20 of the Spring 17 are stuck on.
  • the grooves 14; 16 on the outside of the mold insert 5 and the springs 15; 17 on the inside of the mold frame 1 be arranged.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Eyeglasses (AREA)
  • Golf Clubs (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

Der Formrahmen (1) für eine Form zur Herstellung von Betonformsteinen besteht aus zwei Längs (2)- und zwei Quer-Rahmenteilen (3), die an den vier Ecken des rechteckigen Formrahmens formschlüssig und lösbar miteinander verschraubt sind. Hierzu weisen die Quer-Rahmenteile (3) an ihren Stirnseiten polygone Zapfen (7) auf, die in entsprechende Vertiefungen (8) der Längs-Rahmenteile (2) drehfest eingreifen. Die viereckigen Zapfen (7) und Vertiefungen (8) werden von je einer Spannschraube (10) durchsetzt, mit denen der Formrahmen (1) in sich und ein mehrere Formnester (6) aufweisender Formeinsatz (5) mit dem Formrahmen (1) verspannt wird, wobei die Verbindung zwischen Formrahmen (1) und Formeinsatz (5) eine Nut- und Feder-Verbindung (14,15) ist. Die formschlüssige Schraubverbindung zwischen den Längs (2)- und Querrahmenteilen (3) des Formrahmens (1) ermöglicht die Aufnahme sehr hoher Kräfte und Drehmomente, die durch die Rüttelschwingungen entstehen.

Figure 00000001
The mold frame (1) for a mold for the production of concrete blocks consists of two longitudinal (2) - and two transverse frame parts (3) which are screwed together at the four corners of the rectangular mold frame in a positive and detachable manner. For this purpose, the transverse frame parts (3) have polygonal pins (7) on their end faces, which engage in corresponding recesses (8) of the longitudinal frame parts (2) in a rotationally fixed manner. The square pins (7) and depressions (8) are penetrated by a clamping screw (10) with which the mold frame (1) is clamped and a mold insert (5) with several mold cavities (6) is clamped to the mold frame (1) , wherein the connection between the mold frame (1) and the mold insert (5) is a tongue and groove connection (14, 15). The form-fitting screw connection between the longitudinal (2) and transverse frame parts (3) of the mold frame (1) enables the absorption of very high forces and torques, which are caused by the vibrations.
Figure 00000001

Description

Die Erfindung betrifft einen Formrahmen für eine Form zur Herstellung von Betonformkörpern, insbesondere Betonformsteine, bestehend aus Längs- und Quer-Rahmenteilen, die miteinander verbunden sind und einen mehrere Formnester enthaltenden Formeinsatz umgeben.The invention relates to a mold frame for a mold for production of concrete moldings, in particular concrete blocks, consisting from longitudinal and transverse frame parts that are connected to each other and surround a mold insert containing several mold cavities.

Durch die DE 195 08 152 A 1 ist ein Formrahmen bekannt, der aus zwei Längs-Rahmenteilen und zwei Quer-Rahmenteilen besteht, die an den vier Ecken des Formrahmens miteinander verschweisst sind. Die Aussenseiten des Quer-Rahmenteils weisen einen Flansch auf, der zur Verbindung mit einem Hubrahmen der Formmaschine vorgesehen ist. Die Innenseiten des Formrahmens sind als schräge Flächen ausgebildet, die zur Aufnahme des Formeinsatzes dienen. Die Aussenseiten des Formeinsatzes bestehen aus dreieckförmigen Prismen, die beim Einlegen des Formeinsatzes in den geschweissten Formrahmen an den schrägen Flächen des Formrahmens anliegen. Zur Halterung des Formeinsatzes im Formrahmen werden von unten an den Formrahmen Druckleisten angeschraubt, die mit einer schrägen Fläche an der Unterseite der dreieckförmigen Prismen des Formeinsatzes anliegen. Zwischen den schrägen Flächen des Formrahmens und des Formeinsatzes sind elastische Dämpfungsplatten eingelegt.From DE 195 08 152 A 1 a molding frame is known which consists of consists of two longitudinal frame parts and two transverse frame parts are welded together at the four corners of the mold frame. The outer sides of the cross frame part have a flange, provided for connection to a lifting frame of the molding machine is. The inside of the mold frame are as sloping surfaces trained, which serve to accommodate the mold insert. The Outside of the mold insert consist of triangular Prisms that when inserting the mold insert into the welded Place the mold frame on the sloping surfaces of the mold frame. To hold the mold insert in the mold frame are from screwed to the bottom of the form frame pressure bars, which with a sloping surface at the bottom of the triangular prisms of the Form insert. Between the sloping surfaces of the mold frame and the mold insert are elastic damping plates inserted.

Während des Rüttelvorganges wird der Formrahmen mit dem auf dem Brett des Rütteltisches aufliegenden Formeinsatz von der Formmaschine festgehalten und niedergedrückt. Dadurch wird der Formrahmen einer hohen Wechselbeanspruchung ausgesetzt, die oftmals Risse in den Schweissnähten der Rahmenteile und Rahmenbrüche aufgrund der Spannungen, die beim Schweissen entstehen, zur Folge hat. Auch kann sich die Schraubverbindung zwischen Formrahmen und Formeinsatz lockern oder es kann zu Brüchen kommen, da die Dauerbruchgefahr durch die Sacklochverschraubung und die relativ kurzen Befestigungsschrauben vergrössert ist.During the shaking process, the mold frame with the on the Board of the vibrating table on top of the mold insert from the molding machine held on and depressed. This will make the mold frame exposed to high alternating stresses, which often Cracks in the weld seams of the frame parts and frame breaks due to the stresses that arise during welding Has. Also, the screw connection between the mold frame and loosen the mold insert or it can break, because the risk of breakage due to the blind hole screw connection and the relative short mounting screws is enlarged.

In der Regel werden in Verbindung mit dem geschweissten Formrahmen auch Schweissverbindungen zwischen dem Formrahmen und dem gehärteten Formeinsatz verwendet. Die dadurch entstehenden Kerbspannungen führen zu einer erheblichen Verminderung der Lebensdauer. Ausserdem sind bei derartigen Schweissverbindungen die Fertigungs- und Montagekosten sehr hoch.They are usually used in conjunction with the welded form frame also welded connections between the mold frame and used the hardened mold insert. The resulting Notch stresses lead to a considerable reduction in the service life. In addition, there are welded joints of this type the manufacturing and assembly costs are very high.

Es ist auch schon vorgeschlagen worden, die Rahmenteile des Formrahmens miteinander zu verschrauben. Nachteilig dabei ist, dass aufgrund der Rüttelschwingungen und der entstehenden Drehmomente, die nur durch Reibungskräfte innerhalb der Schraubverbindung übertragen werden, keine ausreichende und dauerhafte Stabilität des Formrahmens erreicht wird. Wegen der beengten Platzverhältnisse und der erforderlichen grossen Dimensionierung der Befestigungsschrauben kann jeweils nur eine Schraube pro Rahmeneck verwendet werden. Die durch das Rütteln auftretenden Drehmomente im Rahmeneck können über die Vorspannkraft der Schraube nicht aufgenommen werden und es entstehen Relativbewegungen in der Schraubverbindung. It has also been suggested the frame parts of the mold frame to screw together. The disadvantage here is that due to the vibrations and the resulting torques, that only by frictional forces within the screw connection transferred, insufficient and permanent stability of the mold frame is reached. Because of the limited space and the required large dimensioning of the fastening screws can only have one screw per frame corner be used. The torques caused by the shaking in the frame corner can not over the preload of the screw are recorded and there are relative movements in the Screw connection.

Der Erfindung liegt die Aufgabe zugrunde, einen Formrahmen der eingangs erwähnten Art zu schaffen, der den hohen Beanspruchungen des Rüttelbetriebes gewachsen ist und ein rasches und problemloses Auswechseln des Formeinsatzes ermöglicht.The invention has for its object a form frame to create the type mentioned above, the high demands the jogger has grown and is quick and easy The mold insert can be changed.

Gemäss der Erfindung wird die Aufgabe dadurch gelöst, dass jeweils ein Längs-Rahmenteil und ein Quer-Rahmenteil an den vier Ecken des Formrahmens formschlüssig und lösbar miteinander verbunden sind.According to the invention, the object is achieved in that in each case a longitudinal frame part and a transverse frame part at the four corners the form frame positively and releasably connected to each other are.

Bei einer bevorzugten Ausführungsform der Erfindung wird eine formschlüssige und drehfeste Schraubverbindung der Rahmenteile dadurch erreicht, dass jedes Quer-Rahmenteil an seinen beiden Stirnseiten einen im Querschnitt polygonen Zapfen aufweist, der in eine entsprechende, an den beiden Enden jedes Längs-Rahmenteiles in die Innenseite eingearbeitete, im Querschnitt polygone Vertiefung lösbar und unverdrehbar eingreift, oder umgekehrt, und beide Rahmenteile durch eine Spannschraube lösbar miteinander verbunden sind.In a preferred embodiment of the invention, a positive and non-rotatable screw connection of the frame parts achieved in that each cross frame part on its two Front sides has a cross-section polygonal pin, which in a corresponding one, at the two ends of each longitudinal frame part recess recessed into the inside, polygonal in cross section engages releasably and non-rotatably, or vice versa, and both frame parts releasably connected to each other by a clamping screw are.

Nach einem weiteren Merkmal der Erfindung weisen die Zapfen der Quer-Rahmenteile und die Vertiefungen der Längs-Rahmenteile jeweils eine gemeinsame, horizontal und mittig angeordnete Durchgangsbohrung für die Spannschraube auf die in eine Gewindebohrung des Quer-Rahmenteiles eingreift. Durch die relativ grosse Länge der Spannschraube erhöht sich die elastische Nachgiebigkeit und damit auch die Dauerhaltbarkeit der Rahmenverbindung.According to a further feature of the invention, the pins of the Cross frame parts and the depressions of the longitudinal frame parts each a common, horizontally and centrally arranged through hole for the clamping screw on the in a threaded hole of the cross frame part engages. Due to the relatively long length the tension screw increases the elastic compliance and hence the durability of the frame connection.

Zur Erleichterung der Montage und zur Verbesserung der Schraubverbindung ist die Gewindebohrung in einer Schraubenmutter angeordnet, die in eine Aussparung des Quer-Rahmenteiles lose einsetzbar ist. To facilitate assembly and to improve the screw connection the threaded hole is arranged in a screw nut, which can be inserted loosely into a recess in the cross frame part is.

Vorteilhafterweise ist die Gewindebohrung in einer zylindrischen Schraubenmutter quer zur Zylinderachse verlaufend angeordnet, wobei die Schraubenmutter in einer vertikalen Bohrung des Quer-Rahmenteiles gelagert ist. Da sich die Schraubenmutter in der Bohrung verdrehen kann, werden Belastungen der Spannschraube durch eine überlagerte Biegespannung, die z. B. infolge einer schrägen Auflage der Schraubenmutter entsteht, vermieden.The threaded bore is advantageously in a cylindrical Screw nut arranged transversely to the cylinder axis, whereby the nut in a vertical hole in the cross frame part is stored. Because the nut is in the hole can turn, loads on the clamping screw a superimposed bending stress, the z. B. due to an oblique Support of the nut is avoided.

Die Halterung des Formeinsatzes im Formrahmen erfolgt dadurch, dass die Verbindung zwischen Formrahmen und Formeinsatz eine Nut- und Feder-Verbindung ist, die an allen vier Seiten oder nur an zwei gegenüberliegenden Seiten des Formeinsatzes und des Formrahmens vorgesehen ist. Der Formeinsatz wird über die Formmaschine auf den Rütteltisch gespannt, so dass die Kräfte, die durch das Rütteln auf den Formeinsatz wirken, durch die Nut- und Feder-Verbindung gedämpft und spannungsmindernd vom Formeinsatz zum Formrahmen und damit über die Flanschleiste zur Formmaschine geleitet werden.The mold insert is held in the mold frame by that the connection between the mold frame and mold insert is a Tongue and groove connection is available on all four sides or only two opposite sides of the mold insert and the mold frame is provided. The mold insert is on the molding machine stretched on the vibrating table so that the forces caused by the Shake on the mold insert through the tongue and groove connection cushioned and tension-reducing from mold insert to Form frame and thus via the flange strip to the molding machine be directed.

In einer bevorzugten Ausführungsform der Erfindung besteht die Nut-und Feder-Verbindung zwischen Formrahmen und Formeinsatz aus einer in die Innenseite der Quer- und / oder Längsrahmenteile eingearbeiteten, im Querschnitt dreieckförmigen Nut, in die eine im Querschnitt ebenfalls dreieckförmige, an den Aussenseiten des Formrahmens angeformte Feder eingreift.In a preferred embodiment of the invention, the groove and Spring connection between the mold frame and mold insert one worked into the inside of the cross and / or longitudinal frame parts, in cross-section triangular groove, one in cross-section also triangular on the outside of the mold frame molded spring engages.

Die Kräfteübertragung und die Wirkung der Rüttelschwingungen auf die Formmaschine werden zusätzlich reduziert, wenn zwischen der Nut des Formrahmens und der Feder des Formeinsatzes oder umgekehrt Dämpfungselemente angeordnet sind. Dabei können die Dämpfungselemente auf die Kontaktflächen der Feder des Formeinsatzes aufgeklebt oder in diese eingelassen sein. The transfer of forces and the effect of vibrations on vibrations the molding machine are additionally reduced if between the Groove of the mold frame and the tongue of the mold insert or vice versa Damping elements are arranged. The Damping elements on the contact surfaces of the spring of the mold insert be glued on or embedded in them.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass die Verbindung zwischen den Rahmenteilen des Formrahmens hochbelastbar und dauerhaft haltbar ist. Die durch die Rüttelkräfte und das Niederdrücken des Formeinsatzes auf den Rütteltisch entstehenden Drehmomente innerhalb der Schraubverbindung zwischen den Rahmenteilen werden durch die polygonen Zapfen und Vertiefungen, die ein gegenseitiges Verdrehen der Rahmenteile verhindern, voll aufgenommen. Der auf diese Weise verschraubte Formrahmen hat die Stabilität eines geschweissten Rahmens, jedoch mit dem Vorteil einer einfachen Montage, die über die Polygone eine genaue Positionierung ermöglicht. Das Auswechseln des Formeinsatzes bei einer Instandsetzung ist durch die schnell lösbare Schraubverbindung und das zerstörungsfreie Lösen der Verbindung zwischen Formrahmen und Formeinsatz problemlos auch beim Kunden durchführbar. Durch die Anordnung von Dämpfungselementen innerhalb der Nut- und Federverbindung zwischen Formrahmen und Formeinsatz erhöht sich der Wirkungsgrad der Rüttelung ganz erheblich, da die Rüttelenergie grösstenteils im Formeinsatz verbleibt. Die Verdichtung und die Festigkeit der fertigen Betonformsteine erhöht sich dadurch um bis zu 25%.The advantages achieved with the invention are in particular that the connection between the frame parts of the mold frame is highly resilient and durable. That by the vibrating forces and the pressing of the mold insert on the vibrating table Torques within the screw connection between the frame parts are formed by the polygonal pegs and recesses, that prevent the frame parts from twisting, fully absorbed. The molded frame screwed in this way has the stability of a welded frame, but with the advantage of a simple assembly, which is precise via the polygons Positioning allows. The exchange of the mold insert during a repair is due to the quick-release screw connection and the non-destructive loosening of the connection between The mold frame and mold insert can also be carried out easily by the customer. By placing damping elements inside the tongue and groove connection between the mold frame and mold insert the efficiency of the vibration increases considerably, because the vibrating energy largely remains in the mold insert. The compression and the strength of the finished concrete blocks increases thereby by up to 25%.

Die Erfindung ist in der folgenden Beschreibung und der Zeichnung, die ein Ausführungsbeispiel darstellt, näher erläutert. Es zeigen

Fig. 1
eine perspektivische Montagezeichnung eines Formrahmens und eines Formeinsatzes einer nicht näher dargestellten Form, im demontierten Zustand,
Fig. 2
eine Teildraufsicht auf die Verbindung zwischen den Rahmenteilen des Formrahmens, teilweise geschnitten,
Fig. 3
einen Schnitt gemäss der Linie III - III in Fig. 2 und
Fig. 4
einen Schnitt durch eine andere Ausführung der Nut- und Feder-Verbindung mit Dämpfungselementen zwischen Formrahmen und Formeinsatz.
The invention is explained in more detail in the following description and the drawing, which represents an exemplary embodiment. Show it
Fig. 1
2 shows a perspective assembly drawing of a mold frame and a mold insert of a mold, not shown, in the disassembled state,
Fig. 2
a partial plan view of the connection between the frame parts of the mold frame, partially cut,
Fig. 3
a section along the line III - III in Fig. 2 and
Fig. 4
a section through another version of the tongue and groove connection with damping elements between the mold frame and mold insert.

Der Formrahmen 1 einer nicht näher dargestellten Form zur maschinellen Herstellung von Betonformsteinen besteht aus zwei parallelen Längs-Rahmenteilen 2 und zwei parallelen Quer-Rahmenteilen 3, die an den vier Ecken des Formrahmens miteinander verschraubt sind. An den Quer-Rahmenteilen 3 befindet sich jeweils aussen eine Flanschleiste 4 zur Befestigung des Formrahmens 1 am Hubrahmen einer nicht dargestellten Formmaschine. In den Formrahmen 1 ist ein Formeinsatz 5 mit mehreren Formnestern 6 eingespannt.The mold frame 1 of a shape, not shown, for machine Production of concrete blocks consists of two parallel ones Longitudinal frame parts 2 and two parallel cross frame parts 3, the are screwed together at the four corners of the mold frame. On the cross frame parts 3 there is a flange strip on the outside 4 for attaching the mold frame 1 to the lifting frame not shown molding machine. In the mold frame 1 is a mold insert 5 clamped with several mold nests 6.

An den beiden Stirnseiten jedes Quer-Rahmenteiles 3 ist in der Verlängerung der Längsachse des Quer-Rahmenteiles 3 je ein polygoner Zapfen 7 mit viereckigem Querschnitt angeformt. Eine dem Zapfen 7 entsprechende, viereckige Vertiefung 8 ist jeweils in die Innenseite an den Enden jedes Längs-Rahmenteiles 2 eingefräst. Mittig im Zapfen 7 und in der Vertiefung 8 ist parallel zur Längsachse des Quer-Rahmenteils 3 eine Durchgangsbohrung 9 für eine Spannschraube 10 vorgesehen. Das freie Ende der Spannschraube 10 wird nach dem Zusammenfügen der beiden Rahmenteile 2, 3 in eine Gewindebohrung 11 einer Schraubenmutter 12 eingedreht. Die Schraubenmutter 12 ist zylindrisch ausgebildet und in eine vertikale, die Durchgangsbohrung 9 im rechten Winkel schneidende Bohrung 13 im Quer-Rahmenteil 3 lose eingesetzt und drehbar gelagert. Die Schraubenmutter 12 ist in der Bohrung 13 so ausgerichtet, dass die Spannschraube 10 in die quer zur Zylinderachse verlaufende Gewindebohrung 11 eingreifen kann. On the two end faces of each cross frame part 3 is in the extension the longitudinal axis of the cross frame part 3 each a polygon Shaped pin 7 with a square cross section. One of the pins 7 corresponding, square recess 8 is in the inside milled at the ends of each longitudinal frame part 2. In the middle of Pin 7 and in the recess 8 is parallel to the longitudinal axis of the Cross frame part 3 a through hole 9 for a clamping screw 10 provided. The free end of the clamping screw 10 will after joining the two frame parts 2, 3 into a threaded hole 11 screwed a nut 12. The nut 12 is cylindrical and in a vertical shape Through hole 9 at right angles intersecting bore 13 in Cross frame part 3 inserted loosely and rotatably mounted. The Screw nut 12 is aligned in the bore 13 so that the Clamping screw 10 in the threaded bore running transversely to the cylinder axis 11 can intervene.

In umgekehrter Weise können bei einer anderen Ausführungsform der Erfindung die Zapfen 7 auch an den Längs-Rahmenteilen 2 und die Vertiefungen 8 an den Quer-Rahmenteilen 3 angeordnet sein.Conversely, in another embodiment the invention, the pin 7 on the longitudinal frame parts 2 and the depressions 8 can be arranged on the transverse frame parts 3.

Die dem Formeinsatz 5 zugewandte Innenseite jedes Längs- und Quer-Rahmenteiles 2, 3 weist eine durchgehende Nut 14 für eine entsprechende Feder 15 auf, die durchgehend an den vier Aussenseiten des Formeinsatzes 5 angeordnet ist und in die Nut 14 eingreift. Die auf diese Weise gebildete Nut- und Feder-Verbindung 14, 15 zwischen Formrahmen 1 und Formeinsatz 5 ist an allen vier Seiten des Formrahmens und des Formeinsatzes vorgesehen. Es ist auch eine Ausführung möglich, bei der die Nut- und Federverbindung 14, 15 nur an zwei sich gegenüberliegenden Längs- oder Quer-Rahmenteilen 2, 3 angeordnet ist.The inside of each longitudinal and facing the mold insert 5 Cross frame part 2, 3 has a continuous groove 14 for one Corresponding spring 15, which is continuously on the four outer sides of the mold insert 5 is arranged and engages in the groove 14. The tongue and groove connection 14 formed in this way, 15 between mold frame 1 and mold insert 5 is on all four sides of the mold frame and the mold insert. It is a version is also possible in which the tongue and groove connection 14, 15 only on two opposite longitudinal or transverse frame parts 2, 3 is arranged.

Beim Zusammenbau von Formrahmen 1 und Formeinsatz 5 werden zunächst die Quer-Rahmenteile 3 über die Nut- und Feder-Verbindung 14, 15 an den Querseiten des Formeinsatzes 5 mit diesem verbunden. Dann werden die Längs-Rahmenteile 2 mit den Vertiefungen 8 an den Eckpunkten des Formrahmens 1 auf die Zapfen 7 der Quer-Rahmenteile 3 und mit den Nuten 14 auf die Federn 15 des Formeinsatzes 5 aufgesteckt. Die Zapfen 7 und die Vertiefungen 8 sind mit einer Passgenauigkeit aufeinander abgestimmt, die ein nahezu spielfreies und verdrehfestes Ineinandergreifen der beiden Teile gewährleistet. Nach dem Zusammenfügen der Längs-Rahmenteile 2 und der Quer-Rahmenteilen 3 mit dem Formeinsatz 5 werden die Spannschrauben 10 in die gemeinsamen Durchgangsbohrungen 9 der Längs- und Quer-Rahmenteile 2, 3 eingesteckt und mit den Schraubenmuttern 12 verschraubt. Dadurch wird der Formrahmen 1 in sich und mit dem Formeinsatz 5 dreh- und biegefest verspannt. When assembling mold frame 1 and mold insert 5 first the cross frame parts 3 via the tongue and groove connection 14, 15 on the transverse sides of the mold insert 5 with this connected. Then the longitudinal frame parts 2 with the depressions 8 at the corner points of the mold frame 1 on the pin 7th the cross frame parts 3 and with the grooves 14 on the springs 15 of the Mold insert 5 attached. The pin 7 and the recesses 8 are matched to each other with a fit that is almost backlash-free meshing of the two Parts guaranteed. After assembling the longitudinal frame parts 2 and the cross frame parts 3 with the mold insert 5 the clamping screws 10 in the common through holes 9 of the longitudinal and transverse frame parts 2, 3 inserted and with screwed the nuts 12. This will make the mold frame 1 in itself and with the mold insert 5 torsionally and flexurally clamped.

Die Fig. 4 zeigt eine andere Ausführungsform der Nut- und Feder-Verbindung zwischen Formrahmen 1 und Formeinsatz 5. In die Innenseite der Quer-Rahmen-Teile 3 ist eine durchgehende, dreieckförmige Nut 16 eingearbeitet, in die eine ebenfalls dreieckförmige durchgehende Feder 17 eingreift, die sich aussen an den Querseiten des Formeinsatzes 5 befindet. Die Nut-und Feder-Verbindung 16, 17 kann auch an allen vier Seiten des Formrahmens 1 und des Formeinsatzes 5 angeordnet sein. Zur Dämpfung der Rüttelschwingungen sind zwischen der Feder 17 des Formeinsatzes 5 und der Nut 16 des Formrahmens 1 elastische Dämpfungsplatten 18 angeordnet, die in Aussparungen 19 der Kontaktflächen 20 der Feder 17 eingelegt sind. Die Dämpfungsplatten 18 können auch auf die Kontaktflächen 20 der Feder 17 aufgeklebt werden.Fig. 4 shows another embodiment of the tongue and groove connection between mold frame 1 and mold insert 5. In the inside the cross frame parts 3 is a continuous, triangular Groove 16 incorporated, also triangular continuous spring 17 which engages on the outside on the transverse sides the mold insert 5 is located. The tongue and groove connection 16, 17 can also on all four sides of the mold frame 1 and the mold insert 5 be arranged. To dampen the vibrations are between the spring 17 of the mold insert 5 and the groove 16 of the Form frame 1 elastic damping plates 18 arranged in Recesses 19 of the contact surfaces 20 of the spring 17 are inserted. The damping plates 18 can also on the contact surfaces 20 of the Spring 17 are stuck on.

In umgekehrter Weise können bei einer anderen Ausführungsform der Erfindung die Nuten 14; 16 an den Aussenseiten des Formeinsatzes 5 und die Federn 15; 17 an den Innenseiten des Formrahmens 1 angeordnet sein.Conversely, in another embodiment the invention the grooves 14; 16 on the outside of the mold insert 5 and the springs 15; 17 on the inside of the mold frame 1 be arranged.

Claims (9)

Formrahmen für eine Form zur Herstellung von Betonformkörpern, insbesondere Betonformsteine, bestehend aus Längs- und Quer-Rahmenteilen, die miteinander verbunden sind und einen mehrere Formnester enthaltenden Formeinsatz umgeben, dadurch gekennzeichnet, dass jeweils ein Längs-Rahmenteil (2) und ein Quer-Rahmenteil (3) an den vier Ecken des Formrahmens (1) formschlüssig und lösbar miteinander verbunden sind.Molded frame for a mold for the production of concrete moldings, in particular shaped concrete blocks, consisting of longitudinal and transverse frame parts which are connected to one another and surround a mold insert containing a plurality of mold cavities, characterized in that in each case a longitudinal frame part (2) and a transverse frame part (3) are positively and releasably connected to one another at the four corners of the mold frame (1). Formrahmen nach Anspruch 1, dadurch gekennzeichnet, dass jedes Quer-Rahmenteil (3) an seinen beiden Stinseiten je einen horizontalen, im Querschnitt polygonen Zapfen (7) aufweist, der in eine entsprechende, an den beiden Enden jedes Längs-Rahmenteiles (2) in die Innenseite eingearbeitete, im Querschnitt polygone Vertiefung (8) lösbar und unverdrehbar eingreift, oder umgekehrt, und beide Rahmenteile (2, 3) durch eine Spannschraube (10) lösbar miteinander verbunden sind.Molding frame according to claim 1, characterized in that each transverse frame part (3) has a horizontal pin (7) of polygonal cross-section on its two facing sides, which in a corresponding, at the two ends of each longitudinal frame part (2) in the inside of the recess (8), which is polygonal in cross-section, engages releasably and non-rotatably, or vice versa, and both frame parts (2, 3) are detachably connected to one another by a tensioning screw (10). Formrahmen nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Zapfen (7) der Quer-Rahmenteile (3) und die Vertiefungen (8) der Längs-Rahmenteile (2) jeweils eine gemeinsame, horizontal und mittig angeordnete Durchgangsbohrung (9) für die Spannschraube (10) aufweisen, die in eine Gewindebohrung (11) des Quer-Rahmenteiles (3) eingreift.Shaped frame according to claim 1 or 2, characterized in that the pins (7) of the transverse frame parts (3) and the depressions (8) of the longitudinal frame parts (2) each have a common, horizontally and centrally arranged through hole (9) for the Have clamping screw (10) which engages in a threaded bore (11) of the cross frame part (3). Formrahmen nach Anspruch 3, dadurch gekennzeichnet, dass die Gewindebohrung (11) in einer Schraubenmutter (12) angeordnet ist, die in eine Aussparung des Quer-Rahmenteils (3) lose einsetzbar ist.Molding frame according to claim 3, characterized in that the threaded bore (11) is arranged in a screw nut (12) which can be inserted loosely into a recess in the cross frame part (3). Formrahmen nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass die Gewindebohrung (11) in einer zylindrischen Schraubenmutter (12) quer zur Zylinderachse verlaufend angeordnet ist und die Schraubenmutter (12) in einer vertikalen Bohrung (13) des Quer-Rahmenteils (3) gelagert ist.Molding frame according to claim 3 or 4, characterized in that the threaded bore (11) is arranged in a cylindrical screw nut (12) extending transversely to the cylinder axis and the screw nut (12) is mounted in a vertical bore (13) of the cross frame part (3) is. Formrahmen nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Verbindung zwischen Formrahmen (1) und Formeinsatz (5) eine Nut- und Feder-Verbindung (14, 15; 16, 17) ist, die an allen vier Seiten oder nur an zwei gegenüberliegenden Seiten des Formeinsatzes (5) und des Formrahmens (1) vorgesehen ist.Mold frame according to one of claims 1 to 5, characterized in that the connection between the mold frame (1) and the mold insert (5) is a tongue and groove connection (14, 15; 16, 17), which on all four sides or only is provided on two opposite sides of the mold insert (5) and the mold frame (1). Formrahmen nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Nut- und Feder-Verbindung zwischen Formrahmen (1) und Formeinsatzt (5) aus einer in die Innenseite der Querund/oder Längs-Rahmenteile (3, 2) eingearbeitete, im Querschnitt dreieckförmigen Nut (16) besteht, in die eine im Querschnitt ebenfalls dreieckförmige, an den Aussenseiten des Formeinsatzes (1) angeformte Feder (17) eingreift.Mold frame according to one of claims 1 to 6, characterized in that the tongue and groove connection between the mold frame (1) and the mold insert (5) from a worked into the inside of the transverse and / or longitudinal frame parts (3, 2) Cross-section of triangular groove (16), in which a spring (17), which is also triangular in cross-section and is formed on the outer sides of the mold insert (1), engages. Formrahmen nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass zwischen der Nut (14; 16) des Formrahmens (1) und der Feder (15; 17) des Formeinsatzes (5), oder umgekehrt, Dämpfungsplatten (18) angeordnet sind. Molding frame according to one of claims 1 to 7, characterized in that damping plates (18) are arranged between the groove (14; 16) of the molding frame (1) and the tongue (15; 17) of the molding insert (5), or vice versa. Formrahmen nach Anspruch 8, dadurch gekennzeichnet, dass die Dämpfungsplatten (18) auf die Kontaktflächen (20) der Feder (17) aufgeklebt oder in diese eingelassen sind.Molding frame according to claim 8, characterized in that the damping plates (18) are glued to the contact surfaces (20) of the spring (17) or are embedded therein.
EP02000440A 2001-03-23 2002-01-08 Mould frame Expired - Lifetime EP1243387B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DK02000440T DK1243387T3 (en) 2001-03-23 2002-01-08 Form frame for a shape
DE20211027U DE20211027U1 (en) 2002-01-08 2002-01-08 Mold frame consists of lengthwise and crosswise parts enclosing insert with recesses, pin fitting into recess, screw fitting into threaded hole, with nut, and tongue and groove join

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10114398 2001-03-23
DE10114398A DE10114398A1 (en) 2001-03-23 2001-03-23 Form frame for a form

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EP1243387A2 true EP1243387A2 (en) 2002-09-25
EP1243387A3 EP1243387A3 (en) 2003-10-29
EP1243387B1 EP1243387B1 (en) 2005-08-10

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EP02000440A Expired - Lifetime EP1243387B1 (en) 2001-03-23 2002-01-08 Mould frame

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US (2) US20020134906A1 (en)
EP (1) EP1243387B1 (en)
CN (1) CN1250381C (en)
AT (1) ATE301537T1 (en)
CA (1) CA2350370C (en)
CZ (1) CZ303441B6 (en)
DE (2) DE10114398A1 (en)
DK (1) DK1243387T3 (en)
ES (1) ES2247205T3 (en)
HK (1) HK1047723B (en)
PL (1) PL198077B1 (en)

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Also Published As

Publication number Publication date
PL352628A1 (en) 2002-10-07
ATE301537T1 (en) 2005-08-15
US20040056171A1 (en) 2004-03-25
HK1047723A1 (en) 2003-03-07
DK1243387T3 (en) 2005-09-26
US7004442B2 (en) 2006-02-28
CN1250381C (en) 2006-04-12
CA2350370A1 (en) 2002-09-23
CA2350370C (en) 2008-11-18
CN1376562A (en) 2002-10-30
ES2247205T3 (en) 2006-03-01
US20020134906A1 (en) 2002-09-26
HK1047723B (en) 2006-10-13
DE50203851D1 (en) 2005-09-15
DE10114398A1 (en) 2002-09-26
CZ2002214A3 (en) 2003-01-15
PL198077B1 (en) 2008-05-30
EP1243387B1 (en) 2005-08-10
CZ303441B6 (en) 2012-09-12
EP1243387A3 (en) 2003-10-29

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