EP3127671A1 - Device for stripping of flowable material - Google Patents
Device for stripping of flowable material Download PDFInfo
- Publication number
- EP3127671A1 EP3127671A1 EP16181834.9A EP16181834A EP3127671A1 EP 3127671 A1 EP3127671 A1 EP 3127671A1 EP 16181834 A EP16181834 A EP 16181834A EP 3127671 A1 EP3127671 A1 EP 3127671A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stripping
- frame
- guide
- guide rail
- displacement
- 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
Links
Images
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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
- B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper to the moulding cavities
-
- 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
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
- B28B13/0295—Treating the surface of the fed layer, e.g. removing material or equalization of the surface
Definitions
- the invention relates to a device for stripping flowable material in the production of moldings in a molding die, above which mold at least one horizontally displaceable Grestenwagen is arranged, on which a mold die facing the scraper is movably mounted.
- the surface quality may be compromised by a stripping operation performed unidirectionally by the flowable sheet material wedge generally forming prior to the stripping element.
- this wedge formation leads to entrainment or tearing out of the surface material quality mitstaltendem header material from the plate material on the back of the stripping.
- a stripping element which is transverse to the direction of movement of a filling carriage, in a defined by the top of a mold Plane, is alternately shifted in opposite directions.
- the stripping element is connected to a support device which can be displaced periodically in the transverse directions by an engine acting in the horizontal direction.
- a device for preventing surface imperfections, such as concrete blocks which includes motorized means that vibrate an end wall of a drawer-receiving drawer while the drawer travels back over just-filled dies. As a result, adhesion or entrainment of the concrete is avoided on the drawer during its return movement.
- the known devices thus aim to solve by means of shear forces or vibrations adhering to a scraper material.
- a dedicated engine is required.
- an alternating displacement of the stripping element in opposite, substantially vertical direction i. is provided perpendicular to the direction of movement, between a resting on an upper side of the mold die position and a contrast shifted upward position, wherein the displacement of the scraper is coupled via a guide device to the movement of the Grekastenwagens.
- a, preferably periodic, high / low movement of the scraper element is achieved. If the wiping element is thus temporarily arranged in an upwardly displaced position, the wedge formation is (largely) interrupted and thus a relatively uniform surface of the product to be produced, in particular a concrete block or the like, is achieved. The high / low movement of the scraper element is thus achieved via a (passive) guide device.
- the displacement of the scraper is coupled via a guide device to the displacement of the Grekastenwagens.
- the Grekastenwagen which initially receives the flowable material, hereinafter referred to as molding material from which the moldings are made, is designed for a substantially horizontal displacement or displacement above and along the forming die (s) and are during movement over the Forming die (s) the flowable material in this.
- the displacement of the Grestenwagen preferably has a transport device, in particular rollers, which are in engagement with a separate corresponding guide means, for example, mounted on the molding dies guide rails.
- the stripping element is movably mounted in opposite directions in the direction of the underside of the filling box carriage facing the forming dies, in order to strip off flowable or tough material after filling in the forming dies, without causing undesired surface damage, for example recesses in the area of already stripped material.
- the flowable material may include uncured concrete.
- the guide device is designed for the transformation of the longitudinal movement of the Artkastenwagens on the molding dies in the alternate displacement of the scraper in opposite directions.
- the stripping element is a stripping frame with two frame sides pointing in the direction of successive molding matrices and at least one transverse side arranged at right angles thereto and connected therewith.
- the scraper frame having at least three walls and, for example, a U-shaped design, advantageously has a rear scraper wall viewed in the direction of movement over the forming dies as a transverse side and two frame sides or side walls.
- the sidewalls serve to laterally limit the propagation of the excess, stripped material during the stripping operation, and are preferably arranged substantially in an imaginary extension of the sidewalls of the molding dies.
- the stripped material is guided within the Abstreifrahmens and can during the displacement of the Greets or the associated Abstreifrahmens on the forming dies without Further measures for the filling of any areas with insufficient fill level are used. Remaining excess material can be collected and reused at the end of individual stripped forming dies.
- the guiding device is designed for vertical displacement of the scraping element, in particular of the scraping frame.
- the stripping element or the stripping frame is moved up and down during the displacement of the filling box carriage along the molding dies perpendicular to its direction of movement in the vertical direction.
- the side walls of the scraper frame may be conveniently extended towards the bottom of the forming dies to provide reliable lateral guidance for the stripped material even in the uppermost position of the scraper frame.
- lateral movement in opposite directions in the plane of the top of the molding dies in which a lateral displacement of the scraper frame during the longitudinal movement along the mold matrices can leave unstripped areas, in particular a non-stripped corner, is by means of the alternating lifting and lowering movement reliably deducted the entire surface area of the molding dies.
- the alternating lifting and lowering movement in this case prevents adhesion of an increasingly larger material wedge on the stripping element or frame, which material wedge attachment material would tear out of the already removed surface area.
- the guide device has at least one guide rail which has elevations and depressions in the direction of successive molding dies and at least one engagement element which engages along the guide rail and is arranged on a frame side.
- the guiding device has two guide rails which have elevations and depressions in the vertical direction and which extend in the direction of successive molding dies and two in each case one guide rail on each frame side engaging, the guide rail along displaceable engagement elements.
- the stripping frame is stably supported on both frame sides or side walls, preferably without additional guide elements, only by means of two engagement elements engaging in a guide rail.
- more than two, for example, three or four engagement elements per frame side may be provided and are in engagement with the associated guide rail.
- one engagement element and one guide rail can be provided per frame side.
- front engagement elements may come to rest in a depression when rear engagement elements lie on an elevation.
- the scraper frame is thereby caused to a rocking movement about an imaginary axis extending transversely to the direction of successive molding dies during the longitudinal movement of the Grekastenwagens.
- a particularly expedient embodiment is characterized in that the engagement element or the engagement elements is or are each a roller mounted on a frame side. Rollers provide a cost effective and reliable embodiment of engagement elements and eliminate the use of any lubricants to reduce frictional drag between sliding engagement members and the guide rails.
- the elevations and depressions are arranged periodically at least in a section of the guide rail / guide rails extending along a molding die.
- the regular lifting and lowering process ensures that avoided by a movement of the stripping frame only in the longitudinal direction caused known negative effects on the product surface.
- the elevations and depressions may be arranged according to the dimensions of the product to be produced and the material at appropriately selected intervals on substantially rectilinear guide rails.
- the guide rails may be curved in the vertical direction. The longitudinal extension of each increase and depression can be selected appropriately.
- the period length of the periodically arranged elevations and depressions can be chosen as desired. Short period lengths, which lead the scraper frame or the scraper element into a more frequent up / down movement, are particularly suitable in the case of molding materials, for which due to their composition a formation of grooves or other surface damage in slow or less frequent upward / downward movements is likely.
- the elevations and depressions are preferably arranged periodically, the period duration along one or more shape matrices may of course vary.
- the elevations and depressions form a triangular profile or a wave profile, in particular a sinusoidal wave profile.
- a wave profile in particular a sinusoidal wave profile.
- other, for example, trapezoidal profiles of the guide rails may be suitable for the stripping process.
- the continuous lifting and lowering process can guarantee product surfaces of particularly high quality.
- the elevations and depressions for a maximum vertical displacement of the Abstreifrahmens in the range of greater than 0 mm to 20 mm, preferably from 2 mm 10 mm are formed.
- the height of the maximum vertical displacement is adjusted to the desired overfilling of the matrices.
- a structurally particularly simple and expedient embodiment of the invention can provide that the guide rail / guide rails is / are fastened to the molding dies.
- the guide rails can be arranged simply extending along the serving as a support molds.
- the guide rails can be releasably connected, for example by plugging together, clamps or screws, with the forming dies for rapid conversion.
- molding dies with different dimensions or for receiving different materials can already be provided with suitably shaped guide rails.
- the stripper frame with at least one biasing element preferably with at least one air cylinder, a hydraulic cylinder, a molded rubber or elastic plastic element or a spring, in particular at least one coil spring is biased in the direction of the forming dies .
- the biasing element such as the spring, is secured with one end to the Artkastenwagen and with the other end of the scraper frame.
- air cylinders or hydraulic cylinders are used, these expediently have a memory design in which gas or liquid is stored under pressure.
- An element formed of rubber or elastic plastic may for example be a rubber buffer or have silicone.
- Fig. 1 shows a stripping device 1 with a Bastreifrahmen 3 as a scraper 3 ', which together above molding matrices 4 at least in the horizontal direction L as a feed direction, for Filling the molding dies 4 with suitable, flowable molding material M, are displaced.
- the stripper frame 3 is mounted on the forming dies 4 facing bottom 6 of the Gress 2 alternately in opposite vertical directions X1, X2 displaced.
- the opposite vertical directions X1, X2 are preferably substantially, though not necessarily, exactly orthogonal to the horizontal direction L, which corresponds to a longitudinal direction in which the forming dies 4 are successively filled.
- the stripping frame 3 has two frame sides 13 which point in the direction L of successive molding dies 4 and at least one transverse face 14 arranged substantially perpendicular thereto and connected therewith.
- the substantially vertical displacement of the stripper frame 3 is coupled via a guide device 15 to the horizontal displacement of the Grekastenwagens 2.
- the guide device 15 at least one, preferably in each case one of the frame sides 13 associated, in the direction L successive molding dies 4 extending guide rail 16 in the vertical direction X1, X2 extending elevations 17 and depressions 18, see also Fig. 5a to 5e , and in engaging, in particular resting, rollers 19 as engagement elements 19 'on.
- the guide rail 16 is fastened to the molding dies 4, for example, by means of holding elements 20.
- Fig. 1 the stripper frame 3 is shown in the highest position above the forming dies 4.
- the stripping frame 3 In order to move the stripping frame 3 with respect to the Baskastenwagen 2 in the vertical direction X1, X2 without jamming and reliable, not shown with the stripping frame 3 and the Artkastenwagen 2 connected guide elements may be provided. Likewise, the stripper frame 3 at least partially embrace the Artkastenwagen 2 and slide along the vertical displacement on the outside of the Grekastenwagens 2. In order to ensure a secure engagement with the guide rails 16, the stripping frame 3 by means of at least one, for example by means of four also attached to Golfkastenwagen 2 biasing elements 21 ', preferably coil springs 21, of which in Fig. 2 only three coil springs 21 are visible, biased in the direction of the forming dies 4.
- the stripping frame 3 by means of at least one, for example by means of four also attached to Golfkastenwagen 2 biasing elements 21 ', preferably coil springs 21, of which in Fig. 2 only three coil springs 21 are visible, biased in the direction of the forming dies 4.
- Fig. 3 shows a part of the Greinskys 2 and a part of the Abstreifrahmens 3 in engagement with forming dies 4 during a stripping operation, in a schematic sectional view along the line II in FIG Fig. 2 , For clarity, the guide rails 16 in Fig. 3 not shown.
- Fig. 3 clearly shows the formation of a wedge K of molding material M during the stripping of filled with the molding material M, in particular overfilled molding dies 4 through the rear transverse side 14 of the Abstreifrahmens 3. Without an alternate displacement of the Abstreifrahmens 3 in opposite directions would be undesirable depressions or grooves Form R in the already stripped area behind the transverse side 14 of the Abstreifrahmens 3, whereby the surface quality of the product to be produced is impaired.
- the formation of such imperfections is prevented or at least reduced by the lifting and lowering movement of the stripping frame 3, as indicated in the area B of the forming die 4 'by means of the smooth surface O.
- Fig. 4 shows a portion of the Abstreifrahmens 3 with an attached roller 19 in engagement with a raised portions 17 and recesses 18 having guide rail 16.
- the elevations 17 and recesses 18 are arranged periodically, but deviating embodiments are not excluded within the scope of the invention.
- Fig. 5a to 5e show various exemplary embodiments of guide rails 16 with periodically arranged elevations 17 and recesses 18, wherein in the Fig. 5a to 5d substantially rectilinear guide rails 16 with according to corrugated upper edges 22 and in Fig. 5e a curved in the vertical direction, approximately sinusoidally extending guide rail 16 is shown.
- Fig. 5a a guide rail 16 with individual elevations 17, while the recesses 18 are formed by the horizontally extending majority of the upper edge 22.
- Fig. 5b shows a guide rail 16 with sinusoidal course
- Fig. 5c a guide rail 16 with triangular course
- Fig. 5d a guide rail 16 with a trapezoidal course of the upper edge 22.
- the period length P and the value of the maximum vertical displacement V of the stripping frame 3 can be suitably selected according to the dimensions of the product to be produced and the molding material M.
- a drive unit for example, an electric motor is provided for the displacement of the Greinskys 2 in the horizontal direction L. Due to the coupling of the vertical displacement of the Abstreifrahmens 3 to the horizontal displacement of the Greinskys 2 via the guide device 15, no additional drive unit for the stripping frame 3 is required.
- the stripped molding material M can be compacted in the molding dies 4 in an additional working step by means of a punch (not shown).
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Vorrichtung (1) zum Abstreifen von fließfähigem Material (M) bei der Herstellung von Formkörpern in einer Formmatrize (4), oberhalb welcher Formmatrize (4) zumindest ein horizontal verlagerbarer Füllkastenwagen (2) angeordnet ist, an welchem ein der Formmatrize (4) zugewandtes Abstreifelement (3') bewegbar montiert ist, wobei eine Vorrichtung zur wechselweisen Verlagerung des Abstreifelements (3') in entgegengesetzter, im Wesentlichen vertikaler Richtung (X1, X2) zwischen einer an einer Oberseite der Formmatrize (4) aufliegenden Position und einer demgegenüber nach oben verschobenen Position vorgesehen ist, wobei die Verlagerung des Abstreifelements (3') über eine Führungsvorrichtung (15) an die Bewegung des Füllkastenwagens (2) gekoppelt ist. Device (1) for stripping flowable material (M) in the production of moldings in a molding die (4), above which molding die (4) at least one horizontally displaceable Füllkastenwagen (2) is arranged, on which one of the molding die (4) facing Scraper (3 ') is movably mounted, wherein a device for the alternate displacement of the scraper (3') in opposite, substantially vertical direction (X1, X2) between an upper side of the mold die (4) resting position and a contrast to the top displaced position is provided, wherein the displacement of the stripping element (3 ') via a guide device (15) is coupled to the movement of the Füllkastenwagens (2).
Description
Die Erfindung betrifft eine Vorrichtung zum Abstreifen von fließfähigem Material bei der Herstellung von Formkörpern in einer Formmatrize, oberhalb welcher Formmatrize zumindest ein horizontal verlagerbarer Füllkastenwagen angeordnet ist, an welchem ein der Formmatrize zugewandtes Abstreifelement bewegbar montiert ist.The invention relates to a device for stripping flowable material in the production of moldings in a molding die, above which mold at least one horizontally displaceable Füllkastenwagen is arranged, on which a mold die facing the scraper is movably mounted.
Aus dem Stand der Technik ist die Verwendung von oberhalb von zumeist mehreren Formmatrizen verlagerbaren Füllkastenwagen für die Herstellung von Platten- oder Pflasterprodukten bekannt. Hierbei wird das fließfähige Platten- bzw. Formmaterial in die Füllkastenwagen eingebracht und während deren Verlagerung über die Formmatrizen in diese abgegeben. Um in Folge des Füllvorgangs überschüssiges, über eine durch den oberen Rand der Formmatrizen gebildete Ebene vorstehendes Material zu entfernen, sind Abstreifelemente vorgesehen.From the prior art, the use of above most of a plurality of forming dies displaceable Füllkastenwagen for the production of plate or plaster products is known. In this case, the flowable plate or molding material is introduced into the Füllkastenwagen and delivered during their displacement on the molding dies in this. In order to remove excess material projecting over a plane formed by the upper edge of the molding dies as a result of the filling operation, scraper elements are provided.
Neben dem Ziel ein Produkt mit dem jeweiligen Verwendungszweck entsprechenden Festigkeitseigenschaften herzustellen, werden besonders bei hochwertigeren Produkten zudem hohe Anforderungen an das Erscheinungsbild bzw. die Oberflächenqualität gestellt. Die Oberflächenqualität kann jedoch durch einen ausschließlich in einer Richtung ausgeführten Abstreifvorgang durch den sich im Allgemeinen vor dem Abstreifelement bildenden Keil aus fließfähigem Plattenmaterial beeinträchtigt werden. Insbesondere führt diese Keilbildung zu einer Mitnahme bzw. einem Herausreißen von die Oberflächenqualität wesentlich mitgestaltendem Vorsatzmaterial aus dem Plattenmaterial an der Rückseite des Abstreifelements.In addition to the goal of producing a product with the respective intended use corresponding strength properties, high demands are placed on the appearance and the surface quality, especially for higher-quality products. However, the surface quality may be compromised by a stripping operation performed unidirectionally by the flowable sheet material wedge generally forming prior to the stripping element. In particular, this wedge formation leads to entrainment or tearing out of the surface material quality mitstaltendem header material from the plate material on the back of the stripping.
Aus der
Um einer Keilbildung entgegenzuwirken sieht die
Aus der
Die bekannten Vorrichtungen zielen somit darauf ab, mittels Scherkräften bzw. Vibrationen das an einem Abstreifelement anhaftenden Material zu lösen. Hiefür ist zwingend ein eigens vorgesehener Motor erforderlich.The known devices thus aim to solve by means of shear forces or vibrations adhering to a scraper material. For this purpose, a dedicated engine is required.
Aus der
Weitere andersartige Vorrichtungen, welche nicht die Vermeidung einer Keilbildung bezwecken, sondern vielmehr dazu dienen ein Höhenprofil im in einer Formmatrize eingefüllte Beton zu erzeugen, sind z.B. aus der
Es ist nun Aufgabe der Erfindung eine Vorrichtung zu schaffen, welche die Nachteile des Standes der Technik vermeidet oder zumindest verringert, wobei insbesondere - anders als bei den bekannten Lösungen die Keilbildung - temporär unterbrochen bzw. verringert werden soll, wodurch eine verhältnismäßig gleichmäßige Oberfläche des herzustellenden Produkts erzielt werden soll.It is an object of the invention to provide a device which avoids or at least reduces the disadvantages of the prior art, wherein in particular - unlike the known solutions, the wedge formation - should be temporarily interrupted or reduced, whereby a relatively uniform Surface of the product to be produced is to be achieved.
Diese Aufgabe wird durch eine Vorrichtung gemäß Anspruch 1 gelöst. Vorteilhafte Ausführungen und Weiterbildungen sind in den abhängigen Ansprüchen angegeben.This object is achieved by a device according to claim 1. Advantageous embodiments and further developments are specified in the dependent claims.
Erfindungsgemäß ist demzufolge eine wechselweise Verlagerung des Abstreifelements in entgegengesetzter, im Wesentlichen vertikaler Richtung, d.h. senkrecht zur Fortbewegungsrichtung, zwischen einer an einer Oberseite der Formmatrize aufliegenden Position und einer demgegenüber nach oben verschobenen Position vorgesehen ist, wobei die Verlagerung des Abstreifelements über eine Führungsvorrichtung an die Bewegung des Füllkastenwagens gekoppelt ist. Hierdurch wird vorteilhafterweise, eine, vorzugsweise periodische, Hoch-/Tiefbewegung des Abstreifelements erzielt. Sofern das Abstreifelement demnach temporär in einer nach oben verschobenen Position angeordnet ist, wird die Keilbildung (weitgehend) unterbrochen und somit eine verhältnismäßig gleichmäßige Oberfläche des herzustellenden Produkts, insbesondere eines Betonsteins oder dergleichen, erzielt. Die Hoch-/Tiefbewegung des Abstreifelements wird somit über eine (passive) Führungsvorrichtung erzielt werden.Accordingly, according to the invention, an alternating displacement of the stripping element in opposite, substantially vertical direction, i. is provided perpendicular to the direction of movement, between a resting on an upper side of the mold die position and a contrast shifted upward position, wherein the displacement of the scraper is coupled via a guide device to the movement of the Füllkastenwagens. As a result, advantageously, a, preferably periodic, high / low movement of the scraper element is achieved. If the wiping element is thus temporarily arranged in an upwardly displaced position, the wedge formation is (largely) interrupted and thus a relatively uniform surface of the product to be produced, in particular a concrete block or the like, is achieved. The high / low movement of the scraper element is thus achieved via a (passive) guide device.
Um die Vorrichtung möglichst einfach und kostengünstig zu gestalten, dh insbesondere eine gesonderte Antriebsvorrichtung für die Hoch-/Tiefbewegung des Abstreifelements einsparen zu können, ist die Verlagerung des Abstreifelements über eine Führungsvorrichtung an die Verlagerung des Füllkastenwagens gekoppelt ist. Der Füllkastenwagen, welcher zunächst das fließfähige Material, in der Folge auch Formmaterial genannt, aus welchem die Formkörper hergestellt werden aufnimmt, ist für eine im Wesentlichen horizontale Verschiebung bzw. Verlagerung oberhalb und entlang der Formmatrize(n) ausgebildet und gibt während der Bewegung über die Formmatrize(n) das fließfähige Material in diese ab. Für die Verlagerung weist der Füllkastenwagen vorzugsweise eine Transporteinrichtung, insbesondere Rollen auf, welche mit einer separaten korrespondierenden Führungseinrichtung, beispielsweise an den Formmatrizen montierten Führungsschienen, in Eingriff stehen. Für die Verlagerung des Füllkastenwagens ist günstiger Weise eine elektrisch, hydraulisch oder andersartig betriebene Antriebseinheit, vorzugsweise ein Hydraulikzylinder, vorgesehen. Das Abstreifelement ist in Richtung der den Formmatrizen zugewandten Unterseite des Füllkastenwagens in entgegengesetzte Richtungen beweglich montiert, um nach dem Füllvorgang in den Formmatrizen nach oben überstehendes fließfähiges bzw. zähes Material abzustreifen, ohne unerwünschte Oberflächenschäden, beispielsweise Vertiefungen im Bereich bereits abgestreiften Materials zu verursachen. Das fließfähige Material kann noch nicht ausgehärteten Beton umfassen. Im Gegensatz zu bekannten Vorrichtungen, welche zwingend zusätzliche Antriebseinheiten für die wechselweise Verlagerung des Abstreifelements in entgegengesetzte Richtungen aufweisen, ist vorteilhafterweise somit vorgesehen, dass die Verlagerung des Abstreifelements über eine im Wesentlichen mechanisch ausgebildete Führungsvorrichtung an die Verlagerung des Füllkastenwagens gekoppelt ist. Somit wird die für die Verlagerung des Füllkastenwagens vorgesehene Antriebseinheit auch für die Verlagerung des Abstreifelements genutzt. Eine separate motorbetriebene Antriebseinheit für das Abstreifelement oder eine für eine separate Antriebseinheit vorgesehene Steuerung wird daher nicht benötigt. Die Führungsvorrichtung ist für die Transformation der Längsbewegung des Füllkastenwagens über die Formmatrizen in die wechselweise Verlagerung des Abstreifelements in entgegengesetzte Richtungen ausgebildet.To make the device as simple and inexpensive as possible, ie in particular to be able to save a separate drive device for the up / down movement of the stripping, the displacement of the scraper is coupled via a guide device to the displacement of the Füllkastenwagens. The Füllkastenwagen, which initially receives the flowable material, hereinafter referred to as molding material from which the moldings are made, is designed for a substantially horizontal displacement or displacement above and along the forming die (s) and are during movement over the Forming die (s) the flowable material in this. For the displacement of the Füllkastenwagen preferably has a transport device, in particular rollers, which are in engagement with a separate corresponding guide means, for example, mounted on the molding dies guide rails. For the displacement of the Füllkastenwagens is conveniently an electrically, hydraulically or otherwise operated Drive unit, preferably a hydraulic cylinder provided. The stripping element is movably mounted in opposite directions in the direction of the underside of the filling box carriage facing the forming dies, in order to strip off flowable or tough material after filling in the forming dies, without causing undesired surface damage, for example recesses in the area of already stripped material. The flowable material may include uncured concrete. In contrast to known devices, which necessarily have additional drive units for the alternate displacement of the stripping in opposite directions, it is thus advantageously provided that the displacement of the stripping is coupled via a substantially mechanically formed guide device to the displacement of the Füllkastenwagens. Thus, provided for the displacement of the Füllkastenwagens drive unit is also used for the displacement of the scraper. A separate motor-driven drive unit for the stripping element or a control provided for a separate drive unit is therefore not required. The guide device is designed for the transformation of the longitudinal movement of the Füllkastenwagens on the molding dies in the alternate displacement of the scraper in opposite directions.
Gemäß einer bevorzugten Ausführungsform der Erfindung ist das Abstreifelement ein Abstreifrahmen mit zwei in die Richtung aufeinander folgender Formmatrizen weisenden Rahmenseiten und zumindest einer hierzu rechtwinkelig angeordneten und damit verbundenen Querseite. Der zumindest drei Wände aufweisende und beispielsweise U-förmig ausgebildete Abstreifrahmen weist günstiger Weise eine in Richtung der Bewegung über die Formmatrizen betrachtet rückwärtige Abstreifwand als Querseite und zwei Rahmenseiten bzw. Seitenwände auf. Die Seitenwände dienen der seitlichen Begrenzung der Ausbreitung des überschüssigen, abgestreiften Materials während des Abstreifvorgangs und sind vorzugsweise im Wesentlichen in einer gedachten Verlängerung der Seitenwände der Formmatrizen angeordnet. Auf diese Weise wird das abgestreifte Material innerhalb des Abstreifrahmens geführt und kann während der Verlagerung des Füllkastenwagens bzw. des damit verbundenen Abstreifrahmens über die Formmatrizen ohne weitere Maßnahmen für die Füllung allfälliger Bereiche mit zu geringem Füllstand genutzt werden. Verbleibendes überschüssiges Material kann am Ende einzelner abgestreifter Formmatrizen gesammelt und wieder verwendet werden.According to a preferred embodiment of the invention, the stripping element is a stripping frame with two frame sides pointing in the direction of successive molding matrices and at least one transverse side arranged at right angles thereto and connected therewith. The scraper frame having at least three walls and, for example, a U-shaped design, advantageously has a rear scraper wall viewed in the direction of movement over the forming dies as a transverse side and two frame sides or side walls. The sidewalls serve to laterally limit the propagation of the excess, stripped material during the stripping operation, and are preferably arranged substantially in an imaginary extension of the sidewalls of the molding dies. In this way, the stripped material is guided within the Abstreifrahmens and can during the displacement of the Füllkastenwagens or the associated Abstreifrahmens on the forming dies without Further measures for the filling of any areas with insufficient fill level are used. Remaining excess material can be collected and reused at the end of individual stripped forming dies.
Um das Formmaterial entlang der gesamten Oberseite der Formmatrizen zuverlässig abziehen zu können, ist es besonders günstig, wenn die Führungsvorrichtung zur vertikalen Verlagerung des Abstreifelements, insbesondere des Abstreifrahmens, ausgebildet ist. Auf diese Weise wird das Abstreifelement bzw. der Abstreifrahmen während der Verlagerung des Füllkastenwagens entlang der Formmatrizen senkrecht zu dessen Bewegungsrichtung in vertikaler Richtung auf- und abbewegt. Die Seitenwände des Abstreifrahmens können zweckmäßiger Weise in Richtung zur Unterseite der Formmatrizen verlängert sein, um auch in der obersten Stellung des Abstreifrahmens eine zuverlässige Seitenführung für das abgestreifte Material bereitzustellen. Im Gegensatz zu einer aus dem Stand der Technik bekannten seitlichen Bewegung in entgegengesetzte Richtungen in der Ebene der Oberseite der Formmatrizen, bei welcher eine seitliche Verlagerung des Abstreifrahmens während der Längsbewegung entlang der Formmatrizen nicht abgestreifte Bereiche, insbesondere einen nicht abgestreiften Eckbereich zurücklassen kann, wird mittels der abwechselnden Hebe- und Senkbewegung zuverlässig der vollständige Oberflächenbereich der Formmatrizen abgezogen. Die abwechselnde Hebe- und Senkbewegung verhindert hierbei ein Anhaften eines zunehmend größer werdenden Materialkeils am Abstreifelement bzw. -rahmen, welcher Materialkeil Vorsatzmaterial aus dem bereits abgezogenen Oberflächenbereich herausreißen würde.In order to be able to reliably pull off the molding material along the entire upper side of the molding dies, it is particularly favorable if the guiding device is designed for vertical displacement of the scraping element, in particular of the scraping frame. In this way, the stripping element or the stripping frame is moved up and down during the displacement of the filling box carriage along the molding dies perpendicular to its direction of movement in the vertical direction. The side walls of the scraper frame may be conveniently extended towards the bottom of the forming dies to provide reliable lateral guidance for the stripped material even in the uppermost position of the scraper frame. In contrast to a known from the prior art lateral movement in opposite directions in the plane of the top of the molding dies, in which a lateral displacement of the scraper frame during the longitudinal movement along the mold matrices can leave unstripped areas, in particular a non-stripped corner, is by means of the alternating lifting and lowering movement reliably deducted the entire surface area of the molding dies. The alternating lifting and lowering movement in this case prevents adhesion of an increasingly larger material wedge on the stripping element or frame, which material wedge attachment material would tear out of the already removed surface area.
Gemäß einer weiteren Ausführungsform der Erfindung kann vorgesehen sein, dass die Führungsvorrichtung zumindest eine in vertikaler Richtung Erhöhungen und Vertiefungen aufweisende, sich in die Richtung aufeinander folgender Formmatrizen erstreckende Führungsschiene und zumindest ein darin eingreifendes, die Führungsschiene entlang verlagerbares, an einer Rahmenseite angeordnetes Eingriffselement aufweist. Indem das am Abstreifrahmen befestigte Eingriffselement bezüglich der Erhöhungen und Vertiefungen aufweisenden starren Führungsschiene derart angeordnet ist, dass es die Führungsschiene während der Verlagerung des Füllkastenwagens entlang der Formmatrizen entlang läuft, wird der Abstreifrahmen in eine Hebe- und Senkbewegung gezwungen. Die Führungsvorrichtung transformiert dabei die Längsbewegung des Füllkastenwagens in die wechselweise Verlagerung des Abstreifrahmens in entgegengesetzte vertikale Richtungen. Wenn eine einzige Führungsschiene und ein einziges Eingriffselement vorgesehen sind, ist es zweckmäßig, zusätzlich vertikal verlaufende Führungselemente vorzusehen, um eine zuverlässige, klemmungsfreie vertikale Verlagerung des Abstreifrahmens zu erzielen. Zweckmäßiger Weise weisen die Erhöhungen und Vertiefungen bis zu deren jeweiligem höchsten oder tiefsten Punkt ansteigende und abfallende Übergangsbereiche mit einem kontinuierlich Verlauf auf.According to a further embodiment of the invention, it may be provided that the guide device has at least one guide rail which has elevations and depressions in the direction of successive molding dies and at least one engagement element which engages along the guide rail and is arranged on a frame side. By arranging the engagement element attached to the stripping frame with respect to the rigid guide rail having elevations and depressions in such a way is that it runs along the guide rails during the displacement of the Füllkastenwagens along the molding dies, the Abstreifrahmen is forced into a raising and lowering movement. The guide device transforms the longitudinal movement of the Füllkastenwagens in the alternate displacement of the Abstreifrahmens in opposite vertical directions. If a single guide rail and a single engagement element are provided, it is expedient to provide additionally vertically extending guide elements in order to achieve a reliable, clamping-free vertical displacement of the Abstreifrahmens. Expediently, the elevations and depressions up to their respective highest or lowest point on rising and falling transition areas with a continuous course.
Um den Abstreifrahmen bzw. das Abstreifelement besonders zuverlässig in vertikaler Richtung verlagern zu können, ist es günstig, wenn die Führungsvorrichtung zwei in vertikaler Richtung Erhöhungen und Vertiefungen aufweisende, sich in die Richtung aufeinander folgender Formmatrizen erstreckende Führungsschienen und an jeder Rahmenseite zwei in jeweils eine Führungsschiene eingreifende, die Führungsschiene entlang verlagerbare Eingriffselemente aufweist. Auf diese Weise wird der Abstreifrahmen an beiden Rahmenseiten bzw. Seitenwänden, vorzugsweise ohne zusätzliche Führungselemente, nur mittels jeweils zwei in eine Führungsschiene eingreifenden Eingriffselementen stabil gelagert. Selbstverständlich können auch mehr als zwei, beispielsweise drei oder vier Eingriffselemente pro Rahmenseite vorgesehen sein und mit der zugeordneten Führungsschiene in Eingriff stehen. Alternativ können pro Rahmenseite ein Eingriffselement und eine Führungsschiene vorgesehen sein. Im Fall von zumindest zwei Eingriffselementen pro Führungsschiene können vordere Eingriffselemente in einer Vertiefung zu liegen kommen, wenn hintere Eingriffselemente auf einer Erhöhung liegen. Der Abstreifrahmen wird hierdurch zu einer Wippbewegung um eine quer zur Richtung aufeinanderfolgender Formmatrizen verlaufende gedachte Achse während der Längsbewegung des Füllkastenwagens veranlasst.In order to be able to displace the stripping frame or the stripping element particularly reliably in the vertical direction, it is favorable if the guiding device has two guide rails which have elevations and depressions in the vertical direction and which extend in the direction of successive molding dies and two in each case one guide rail on each frame side engaging, the guide rail along displaceable engagement elements. In this way, the stripping frame is stably supported on both frame sides or side walls, preferably without additional guide elements, only by means of two engagement elements engaging in a guide rail. Of course, more than two, for example, three or four engagement elements per frame side may be provided and are in engagement with the associated guide rail. Alternatively, one engagement element and one guide rail can be provided per frame side. In the case of at least two engagement elements per guide rail, front engagement elements may come to rest in a depression when rear engagement elements lie on an elevation. The scraper frame is thereby caused to a rocking movement about an imaginary axis extending transversely to the direction of successive molding dies during the longitudinal movement of the Füllkastenwagens.
Eine besonders zweckmäßige Ausführungsform ist dadurch gekennzeichnet, dass das Eingriffselement bzw. die Eingriffselemente jeweils eine an einer Rahmenseite gelagerte Rolle ist bzw. sind. Rollen stellen eine kostengünstige und zuverlässige Ausführungsform von Eingriffselementen dar und ersparen die Anwendung allfälliger Schmierstoffe zur Verminderung des Reibungswiderstandes zwischen gleitenden Eingriffselementen und den Führungsschienen.A particularly expedient embodiment is characterized in that the engagement element or the engagement elements is or are each a roller mounted on a frame side. Rollers provide a cost effective and reliable embodiment of engagement elements and eliminate the use of any lubricants to reduce frictional drag between sliding engagement members and the guide rails.
Für einen regelmäßigen Hebe- und Senkvorgang des Abstreifrahmens bzw. des Abstreifelements ist es günstig, wenn die Erhöhungen und Vertiefungen zumindest in einem entlang einer Formmatrize verlaufenden Teilabschnitt der Führungsschiene/Führungsschienen periodisch angeordnet sind. Der regelmäßige Hebe- und Senkvorgang stellt dabei sicher, dass die durch eine Bewegung des Abstreifrahmens nur in Längsrichtung hervorgerufenen bekannten negativen Auswirkungen auf die Produktoberfläche vermieden werden. Die Erhöhungen und Vertiefungen können den Abmessungen des herzustellenden Produkts und dem Material entsprechend in zweckmäßig gewählten Abständen auf im Wesentlichen geradlinig verlaufenden Führungsschienen angeordnet sein. Alternativ können die Führungsschienen in vertikaler Richtung gekrümmt ausgebildet sein. Auch die Längserstreckung jeder Erhöhung und Vertiefung kann zweckmäßig gewählt werden. Besonders vorteilhaft ist es, wenn verschiedene, einfach auswechselbare Führungsschienen mit unterschiedlich angeordneten Erhöhungen und Vertiefungen für unterschiedliche Produkte vorgesehen sind, sodass der Hebe- und Senkvorgang an das jeweilige Produkt angepasst werden kann. Beispielsweise kann es günstig sein, bei großflächigen Produkten eine größere Höhe der Erhöhung und Vertiefung vorzusehen, da davon auszugehen ist, dass hier im Vergleich zu kleinflächigen Produkten eine größere Menge Material abzustreifen ist und sich ein größerer Materialkeil vor der abstreifenden Wand bzw. Rahmenseite bildet. Die periodische Anordnung der Erhöhungen und Vertiefungen muss sich nicht über die gesamte Länge der Führungsschienen erstrecken.For a regular lifting and lowering operation of the stripping frame or of the stripping element, it is expedient for the elevations and depressions to be arranged periodically at least in a section of the guide rail / guide rails extending along a molding die. The regular lifting and lowering process ensures that avoided by a movement of the stripping frame only in the longitudinal direction caused known negative effects on the product surface. The elevations and depressions may be arranged according to the dimensions of the product to be produced and the material at appropriately selected intervals on substantially rectilinear guide rails. Alternatively, the guide rails may be curved in the vertical direction. The longitudinal extension of each increase and depression can be selected appropriately. It is particularly advantageous if different, easily replaceable guide rails with differently arranged elevations and depressions are provided for different products, so that the lifting and lowering operation can be adapted to the respective product. For example, it may be advantageous to provide a larger height of the increase and depression in large-scale products, since it can be assumed that a larger amount of material is stripped off in comparison to small-area products and a larger material wedge forms in front of the stripping wall or frame side. The periodic arrangement of the elevations and depressions need not extend over the entire length of the guide rails.
Die Periodenlänge der periodisch angeordneten Erhöhungen und Vertiefungen kann beliebig gewählt werden. Kurze Periodenlängen welche den Abstreifrahmen bzw. das Abstreifelement in eine häufigere Auf-/Abwärtsbewegung führen, sind besonders im Fall von Formmaterialien geeignet, für welche auf Grund deren Zusammensetzung eine Bildung von Rillen oder sonstigen Oberflächenschäden bei langsamen bzw. selteneren Auf-/Abwärtsbewegungen wahrscheinlich ist. Obgleich die Erhöhungen und Vertiefungen vorzugsweise periodisch angeordnet sind, kann die Periodendauer entlang einer oder mehrerer Formmatrizen selbstverständlich variieren.The period length of the periodically arranged elevations and depressions can be chosen as desired. Short period lengths, which lead the scraper frame or the scraper element into a more frequent up / down movement, are particularly suitable in the case of molding materials, for which due to their composition a formation of grooves or other surface damage in slow or less frequent upward / downward movements is likely. Although the elevations and depressions are preferably arranged periodically, the period duration along one or more shape matrices may of course vary.
Für einen kontinuierlichen Hebe- und Senkvorgang des Abstreifrahmens bzw. des Abstreifelements ist es günstig, wenn die Erhöhungen und Vertiefungen ein Dreiecksprofil oder ein Wellenprofil, insbesondere ein sinusförmiges Wellenprofil, ausbilden. Selbstverständlich können für den Abstreifvorgang auch andere, beispielsweise trapezförmige Profile der Führungsschienen geeignet sein. Der kontinuierliche Hebe- und Senkvorgang kann Produktoberflächen besonders hoher Qualität gewährleisten.For a continuous lifting and lowering operation of the stripping frame or of the stripping element, it is favorable if the elevations and depressions form a triangular profile or a wave profile, in particular a sinusoidal wave profile. Of course, other, for example, trapezoidal profiles of the guide rails may be suitable for the stripping process. The continuous lifting and lowering process can guarantee product surfaces of particularly high quality.
Um ein zuverlässiges Abziehen des Formmaterials und eine Mitnahme des aus überschüssigem Formmaterial gebildeten Keils zu gewährleisten, ist es günstig, wenn die Erhöhungen und Vertiefungen für eine maximale vertikale Verlagerung des Abstreifrahmens im Bereich von größer als 0 mm bis 20 mm, vorzugsweise von 2 mm bis 10 mm ausgebildet sind. Die Höhe der maximalen vertikalen Verlagerung wird der gewünschten Überfüllung der Matrizen angepasst.In order to ensure a reliable removal of the molding material and entrainment of the wedge formed from excess molding material, it is advantageous if the elevations and depressions for a maximum vertical displacement of the Abstreifrahmens in the range of greater than 0 mm to 20 mm, preferably from 2
Eine konstruktiv besonders einfache und zweckmäßige Ausführung der Erfindung kann vorsehen, dass die Führungsschiene/Führungsschienen an den Formmatrizen befestigt ist/sind. Auf diese Weise können die Führungsschienen einfach den als Träger dienenden Formmatrizen entlang verlaufend angeordnet sein. Vorteilhafter Weise können die Führungsschienen für eine rasche Umrüstung lösbar, beispielsweise durch Zusammenstecken, Klemmen oder Schrauben, mit den Formmatrizen verbunden sein. Alternativ können Formmatrizen mit unterschiedlichen Abmessungen oder für die Aufnahme unterschiedlicher Materialien bereits fix mit geeignet geformten Führungsschienen versehen sein.A structurally particularly simple and expedient embodiment of the invention can provide that the guide rail / guide rails is / are fastened to the molding dies. In this way, the guide rails can be arranged simply extending along the serving as a support molds. Advantageously, the guide rails can be releasably connected, for example by plugging together, clamps or screws, with the forming dies for rapid conversion. Alternatively, molding dies with different dimensions or for receiving different materials can already be provided with suitably shaped guide rails.
Um während der Verlagerung des Füllkastenwagens eine zuverlässige Auflage des Abstreifrahmens an der Oberseite der Formmatrizen und einen zuverlässigen Eingriff der Eingriffselemente in die Führungsschienen zu gewährleisten, kann vorteilhafter Weise vorgesehen sein, dass der Abstreifrahmen mit zumindest einem Vorspannelement, vorzugsweise mit zumindest einem Luftzylinder, einem Hydraulikzylinder, einem aus Gummi oder elastischem Kunststoff geformten Element oder einer Feder, insbesondere zumindest einer Schraubenfeder, in Richtung der Formmatrizen vorgespannt ist. Günstiger Weise ist das Vorspannelement, beispielsweise die Feder, mit einem Ende am Füllkastenwagen und mit dem anderen Ende am Abstreifrahmen befestigt. Wenn Luftzylinder oder Hydraulikzylinder verwendet werden, weisen diese zweckmäßiger Weise eine Speicherausführung auf, in welcher Gas bzw. Flüssigkeit unter Druck gespeichert ist. Ein aus Gummi oder elastischem Kunststoff geformtes Element kann beispielsweise ein Gummipuffer sein oder Silikon aufweisen.In order during the displacement of the Füllkastenwagens a reliable support of the Abstreifrahmens at the top of the molding dies and a reliable engagement of the engagement elements in the To ensure guide rails, may advantageously be provided that the stripper frame with at least one biasing element, preferably with at least one air cylinder, a hydraulic cylinder, a molded rubber or elastic plastic element or a spring, in particular at least one coil spring is biased in the direction of the forming dies , Conveniently, the biasing element, such as the spring, is secured with one end to the Füllkastenwagen and with the other end of the scraper frame. If air cylinders or hydraulic cylinders are used, these expediently have a memory design in which gas or liquid is stored under pressure. An element formed of rubber or elastic plastic may for example be a rubber buffer or have silicone.
Die Erfindung wird nachstehend anhand eines bevorzugten Ausführungsbeispiels, auf welches sie jedoch nicht beschränkt sein soll, noch weiter erläutert. In den Zeichnungen zeigen:
-
Fig. 1 eine schematische Seitenansicht einer Abstreifvorrichtung gemäß der Erfindung mit einem Füllkastenwagen und einem Abstreifrahmen oberhalb von Formmatrizen; -
Fig. 2 eine perspektivische Ansicht des Füllkastenwagens mit dem Abstreifrahmen; -
Fig. 3 eine schematische Schnittansicht des Füllkastenwagens mit dem Abstreifrahmen im Eingriff mit Formmatrizen während eines Abstreifvorgangs; -
Fig. 4 eine schematische, perspektivische Ansicht eines Teils des Abstreifrahmens mit einer Rolle im Eingriff mit einer Führungsschiene; und -
Fig. 5a bis 5e Führungsschienen mit unterschiedlichen Profilen.
-
Fig. 1 a schematic side view of a stripping device according to the invention with a Füllkastenwagen and a Abstreifrahmen above molding dies; -
Fig. 2 a perspective view of the Füllkastenwagens with the Abstreifrahmen; -
Fig. 3 a schematic sectional view of the Füllkastenwagens with the Abstreifrahmen in engagement with forming dies during a stripping operation; -
Fig. 4 a schematic, perspective view of a portion of the Abstreifrahmens with a roller in engagement with a guide rail; and -
Fig. 5a to 5e Guide rails with different profiles.
Um den Abstreifrahmen 3 in Bezug auf den Füllkastenwagen 2 in vertikaler Richtung X1, X2 klemmungsfrei und zuverlässig zu bewegen, können nicht dargestellte mit dem Abstreifrahmen 3 und dem Füllkastenwagen 2 verbundene Führungselemente vorgesehen sein. Ebenso kann der Abstreifrahmen 3 zumindest teilweise den Füllkastenwagen 2 umgreifen und bei der vertikalen Verlagerung an der Außenseite des Füllkastenwagens 2 entlanggleiten. Um einen sicheren Eingriff mit den Führungsschienen 16 zu gewährleisten, ist der Abstreifrahmen 3 mittels zumindest einem, beispielsweise mittels vier auch am Füllkastenwagen 2 befestigten Vorspannelementen 21', vorzugsweise Schraubenfedern 21, von welchen in
Die
Für die Verlagerung des Füllkastenwagens 2 in horizontaler Richtung L ist eine nicht dargestellte Antriebseinheit, beispielsweise ein Elektromotor vorgesehen. Auf Grund der Kopplung der vertikalen Verlagerung des Abstreifrahmens 3 an die horizontale Verlagerung des Füllkastenwagens 2 über die Führungsvorrichtung 15 ist keine zusätzliche Antriebseinheit für den Abstreifrahmen 3 erforderlich.For the displacement of the
Wie dem Fachmann bekannt ist, kann das abgestreifte Formmaterial M in einem zusätzlichen Arbeitsschritt mittels eines nicht dargestellten Stempels in den Formmatrizen 4 verdichtet werden.As is known to the person skilled in the art, the stripped molding material M can be compacted in the molding dies 4 in an additional working step by means of a punch (not shown).
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50693/2015A AT517544A1 (en) | 2015-07-31 | 2015-07-31 | stripper |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3127671A1 true EP3127671A1 (en) | 2017-02-08 |
EP3127671B1 EP3127671B1 (en) | 2018-06-13 |
Family
ID=56555295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16181834.9A Not-in-force EP3127671B1 (en) | 2015-07-31 | 2016-07-29 | Device for stripping of flowable material |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3127671B1 (en) |
AT (1) | AT517544A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE413637C (en) * | 1923-09-21 | 1925-05-13 | Gaspary & Co Fa Dr | Form filling device |
DE1180663B (en) * | 1958-04-30 | 1964-10-29 | Kalksandstein U Kalkwerke Dr G | Device for the production of sand-lime perforated bricks or perforated solid bricks |
JPS59176010A (en) * | 1983-03-24 | 1984-10-05 | 株式会社イナックス | Pressing molding device |
US20060182840A1 (en) * | 2005-01-27 | 2006-08-17 | Columbia Machine, Inc. | Large pallet machine for forming molded products |
US20140048964A1 (en) * | 2009-06-03 | 2014-02-20 | Keystone Retaining Wall Systems Llc | Floating cut-off bar for a mold box |
-
2015
- 2015-07-31 AT ATA50693/2015A patent/AT517544A1/en not_active Application Discontinuation
-
2016
- 2016-07-29 EP EP16181834.9A patent/EP3127671B1/en not_active Not-in-force
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE413637C (en) * | 1923-09-21 | 1925-05-13 | Gaspary & Co Fa Dr | Form filling device |
DE1180663B (en) * | 1958-04-30 | 1964-10-29 | Kalksandstein U Kalkwerke Dr G | Device for the production of sand-lime perforated bricks or perforated solid bricks |
JPS59176010A (en) * | 1983-03-24 | 1984-10-05 | 株式会社イナックス | Pressing molding device |
US20060182840A1 (en) * | 2005-01-27 | 2006-08-17 | Columbia Machine, Inc. | Large pallet machine for forming molded products |
US20140048964A1 (en) * | 2009-06-03 | 2014-02-20 | Keystone Retaining Wall Systems Llc | Floating cut-off bar for a mold box |
Also Published As
Publication number | Publication date |
---|---|
EP3127671B1 (en) | 2018-06-13 |
AT517544A1 (en) | 2017-02-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2025486B1 (en) | Method and device for laterally cutting a porous concrete block | |
WO2020064423A1 (en) | Climbing unit for a formwork scaffolding | |
CH669233A5 (en) | ROAD CONSTRUCTION MACHINE. | |
DE2039725B2 (en) | Device for making casting molds | |
DE102009013457B4 (en) | Method and device for producing stone moldings for masonry blocks, in particular sand-lime bricks | |
EP3127671B1 (en) | Device for stripping of flowable material | |
DE2946750C2 (en) | Device for raising and lowering ceiling formwork | |
EP2096051A1 (en) | Transport device | |
DE4403986A1 (en) | Multi-part bunker discharge system | |
EP0313957B1 (en) | Press with a mobile table for changing the tools | |
DE102007021370B3 (en) | Procedures e.g. for cutting food into strips, slices or cubes, involves having dividing knife which has cutting edge with front groove arranged on front edge | |
EP3434844B1 (en) | Mortar carriage | |
DE4408845C2 (en) | Manufacturing plant for wall elements | |
DE202016003416U1 (en) | Device for aligning window or door frames | |
EP2718071A1 (en) | Block molding machine and method for vertically adjusting a block molding machine | |
DE102017110711B4 (en) | Desk with a wall | |
EP0896866A2 (en) | Process and device for making moulded articles | |
EP3450132B1 (en) | Final mould device for shaping of extruded rubber compositions to form a full rubber element, an extruder-mould system comprising the final mould device and corresponding uses | |
DE2907711A1 (en) | Cutting angular sections from foam block - by guiding block across cutting wires according to contour | |
DE2720719C2 (en) | Device for supporting trench walls | |
DE102017010837A1 (en) | Device for guiding tools and other objects and method for operating such a device | |
EP4054967B1 (en) | Installation device for use in an elevator shaft | |
DE161872C (en) | ||
DE10329356B4 (en) | Device for creating a foundation along tracks | |
DE2350577C2 (en) | Device for pressing in sheet piles or the like |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
AX | Request for extension of the european patent |
Extension state: BA ME |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE |
|
17P | Request for examination filed |
Effective date: 20170803 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
RIC1 | Information provided on ipc code assigned before grant |
Ipc: B28B 13/02 20060101AFI20171219BHEP |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: GRANT OF PATENT IS INTENDED |
|
INTG | Intention to grant announced |
Effective date: 20180126 |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE PATENT HAS BEEN GRANTED |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 1007992 Country of ref document: AT Kind code of ref document: T Effective date: 20180615 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502016001242 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20180613 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180913 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180913 Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: RS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180914 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20181013 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502016001242 Country of ref document: DE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180729 Ref country code: MC Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20180731 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190201 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
26N | No opposition filed |
Effective date: 20190314 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180731 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180813 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190731 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20180613 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20190731 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20160729 Ref country code: MK Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180613 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20200729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200729 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 1007992 Country of ref document: AT Kind code of ref document: T Effective date: 20210729 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210729 |