FR2590834A1 - Equipment for casting concrete products which may be immediately removed from the mould - Google Patents
Equipment for casting concrete products which may be immediately removed from the mould Download PDFInfo
- Publication number
- FR2590834A1 FR2590834A1 FR8517689A FR8517689A FR2590834A1 FR 2590834 A1 FR2590834 A1 FR 2590834A1 FR 8517689 A FR8517689 A FR 8517689A FR 8517689 A FR8517689 A FR 8517689A FR 2590834 A1 FR2590834 A1 FR 2590834A1
- Authority
- FR
- France
- Prior art keywords
- concrete
- matrix
- pestle
- coating
- mould
- 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.)
- Pending
Links
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
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/021—Ram heads of special form
-
- 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
- B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
- B28B7/364—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article of plastic material or rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
- B28B3/04—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould
- B28B3/06—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form with one ram per mould with two or more ram and mould sets
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
Description
La présente invention concerne un outillage pour mouler des produits en béton a démoulage immédiat, comprenant une matrice traversée par des alvéoles de moulage et un pilon destiné a pénétrer d'une manière sensiblement ajustée dans les alvéoles de la matrice pour compacter le béton dans les alvéoles contre une surface inférieure, puis-retenir les produits en béton contre cette surface alors que la matrice est soulevée de la surface pour le démoulage. The present invention relates to a tool for molding concrete products with immediate demoulding, comprising a matrix traversed by molding cells and a pestle intended to penetrate in a substantially adjusted manner in the cells of the matrix to compact the concrete in the cells. against a lower surface, then-retain the concrete products against this surface while the matrix is lifted from the surface for demolding.
Un tel dispositif est connu d'après le EP-A- 0140721. I1 sert a mouler des blocs tels que pavés ou parpaings. Such a device is known from EP-A-0140721. It is used to mold blocks such as pavers or concrete blocks.
Une première phase du compactage consiste à libérer d'une certaine hauteur le pilon qui tombe sur le béton contenu dans les alvéoles. Une seconde phase du compactage consiste à soumettre ltensemble à des vibrations tout en mettant une pression sur le pilon. A first phase of compaction consists in releasing the pestle which falls on the concrete contained in the cells from a certain height. A second phase of compaction consists in subjecting the assembly to vibrations while putting pressure on the pestle.
Pour garantir le fonctionnement correct d'un tel moule, il est nécessaire de prévoir des jeux suffisants afin d'éviter toute collision entre matrice et pilon, d'autant que pour résister a abrasion les aciers entrant dans la constitution du moule doivent entre durcis par un tritement thermique qui les fragilise. Par contre un jeu trop important favorise le coincement du béton entre matrice et pilon, ce qui accentue l'usure de lvoutiliage. To guarantee the correct functioning of such a mold, it is necessary to provide sufficient clearances in order to avoid any collision between die and pestle, all the more so as to resist abrasion the steels entering into the constitution of the mold must be hardened by thermal treatment which weakens them. On the other hand, too much play favors the jamming of the concrete between matrix and pestle, which accentuates wear of the tool.
La présente invention a ainsi pour but de proposer un outillage dont les iceux entre matrice et pilon soient réduits sans qu'il y ait risque de dommages consécutifs à une collision entre matrice et pilon lors de la chute du pilon. The present invention thus aims to provide a tool whose iceux between matrix and pestle are reduced without there being any risk of damage following a collision between matrix and pestle during the fall of the pestle.
Suivant l'invention, cet outillage est caractérisé en ce que certaines au moins des surfaces de la matrice et du pilon qui sont exposés au contact avec le béton sont portées par un revêtement en polvuréthane. According to the invention, this tool is characterized in that at least some of the surfaces of the matrix and of the pestle which are exposed to contact with the concrete are carried by a coating of polyurethane.
L'utilisation d'un revêtement polyurétnane sur les surfaces fonctionnelles d'un outillage pour mouler des produits en béton s'est avérée remarquablement avantageuse. The use of a polyurethane coating on the functional surfaces of a tool for molding concrete products has proven remarkably advantageous.
Ce revêtement permet de donner aux alvéoles et au pilon des dimensions très précises car le polyuréthane a la particularité de présenter des retraits valumiques pratiquement nuls. Trace à cette précision dimensionnelle, il est possible de prévoir entre pilon et matrice des jeux très réduits qui réduisent le frottement et l'usure par coincement du béton entre pilon et matrice. De plus, le frottement est réduit grace aux qualités anti-friction du polyuréthane, et l'usure est réduite grace aux qualités de résistance a lvabrasion de cette matière plastique. Le faible jeu entre pilon et matrice augmente le risque de collision lors de la chute du pilon, mais en cas de collision, l'élasticité et le pouvoir absorbant du polyuréthane protègent l'outillage et la machine.De plus, le revBtement protège le moule contre la corrosion, ce qui réduit le cout d7entretien. Grace au frottement réduit, la consommation d*nergie de la machine est également réduite Grave a l'usure ralentie du moule, le temps de fonctionnement d'un moule entre deux rénovations est accrue. La rénovation peut consister en une simple réapplication de revêtement polyuréthane sur larme de l'outillage conservée intacte.This coating makes it possible to give the alveoli and the pestle very precise dimensions because the polyurethane has the particularity of presenting virtually zero valumic withdrawals. Trace to this dimensional precision, it is possible to provide between pestle and matrix very reduced clearances which reduce friction and wear by jamming the concrete between pestle and matrix. In addition, friction is reduced thanks to the anti-friction qualities of polyurethane, and wear is reduced thanks to the qualities of abrasion resistance of this plastic material. The small clearance between the pestle and the die increases the risk of collision when the pestle falls, but in the event of a collision, the elasticity and the absorbency of the polyurethane protect the tools and the machine. In addition, the coating protects the mold. against corrosion, reducing the cost of maintenance. Thanks to the reduced friction, the energy consumption of the machine is also reduced Serious to the slowed wear of the mold, the operating time of a mold between two renovations is increased. The renovation can consist of a simple re-application of polyurethane coating on the teardrop of the tooling kept intact.
D'autres particularités et avantages de l'invention ressortiront encore de la description ci-après. Other features and advantages of the invention will emerge from the description below.
Aux dessins annexés, donnés a titre d'exemples non limitatifs :
- la figure 1 est une vue en élévation latérale et en coupe selon le plan I-I de la figure 2, d'un outillage selon l'invention pour la fabrication de pavés
- la figure 2 est une demi-vue de dessus de la matrice de la figure 1 i
- la figure 3 est une vue analogue a la figure 1 mais concernant un outillage pour la fabrication de parpaînos
- la figure 4 est une vue de dessus de la matrice de la figure 3 ;
- la figure 5 est une vue en élvation latérale jeune barrette porte-noyaux pour l'outillage selon les figures 3 et 4, dans une variante de réalisation . et
- la figure 6 est une vue en coupe selon le plan VI-
VI de la figure 5. In the appended drawings, given by way of nonlimiting examples:
- Figure 1 is a side elevational view in section along the plane II of Figure 2, of a tool according to the invention for the manufacture of pavers
- Figure 2 is a half top view of the matrix of Figure 1 i
- Figure 3 is a view similar to Figure 1 but concerning a tool for the manufacture of parpain
- Figure 4 is a top view of the matrix of Figure 3;
- Figure 5 is a side elevation view of young core holder bar for the tool according to Figures 3 and 4, in an alternative embodiment. and
- Figure 6 is a sectional view along the plane VI-
VI of figure 5.
Outillage des figures 1 et 2 comprend une matrice 1 et un pilon 2. Tooling in Figures 1 and 2 includes a die 1 and a pestle 2.
La matrice i est traversée par des alvéoles 3 dont chacun a le profil de 1 un des pavés a réaliser. Les alvéoles S débouchent dans une face inférieure plane 4 et dans une face supérieure plane 6, parallèle a la face 4, de la matrice t. The matrix i is crossed by cells 3 each of which has the profile of 1 one of the blocks to be produced. The cells S open into a flat lower face 4 and into a flat upper face 6, parallel to the face 4, of the matrix t.
Le long de deux bords latéraux opposés, la matrice i présente deux oreilles 7 (une seule est visible à la figure 2) par lesquelles elle est fixée a une machine a mouler. La machine a mouler (non représentée) est capable de déplacer la matrice 1 entre une position (représentée figure 1) dans laquelle la matrice 1 s'appuie par sa face inférieure 4 contre une planche 8, et une position de démoulage dans laquelle la matrice 1 est soulevée de la planche 8. Along two opposite lateral edges, the die i has two ears 7 (only one is visible in FIG. 2) by which it is fixed to a molding machine. The molding machine (not shown) is capable of moving the die 1 between a position (shown in FIG. 1) in which the die 1 is supported by its lower face 4 against a board 8, and a demolding position in which the die 1 is lifted from plate 8.
La face supérieure 6 a plus grande dimension que la face 4. La face supérieure 6 est bordée sur trois cotés d'une rive 9 qui sert a canaliser le béton lors du remplissage du moule, le quatrième côté restant ouvert pour permettre 1 introduction de la trémie de remplissage fonctionnant a la manière d'un tiroir. The upper face 6 has a larger dimension than the face 4. The upper face 6 is bordered on three sides with an edge 9 which serves to channel the concrete during filling of the mold, the fourth side remaining open to allow 1 introduction of the filling hopper operating like a drawer.
Le pilon 2 comprend un corps ii à la face inférieure duquel sont fixées rigidement des chandelles 12 terminées par des tettes de compactage 13 dont le profil et la disposition relative leur permettent de pénétrer tous ensemble chacun dans l'un des alvéoles s lorsque l'abaissement d corps il est permis par la machine de Toul age. The pestle 2 comprises a body ii on the underside of which are fixed rigidly candles 12 terminated by compacting tapes 13 whose profile and relative arrangement allow them all to penetrate together in one of the cells s when lowering d body it is allowed by the Toul age machine.
Les parois latérales (verticales) i4 de chaque alvéole 3 ainsi que la surface horizontale supérieure 6 délimitée par les rives 9 sont recouvertes dun revêtement de polyurèthane dont 1 épaisseur est d'au moins 5 mm. Une épaisseur aussi faible étant difficile à représenter sur les dessins, le revêtement a été figure par un trait épais. The side walls (vertical) i4 of each cell 3 as well as the upper horizontal surface 6 delimited by the edges 9 are covered with a polyurethane coating of which 1 thickness is at least 5 mm. Since such a small thickness is difficult to represent in the drawings, the covering has been shown with a thick line.
De plus, chaque tête de compactage i (voir détail agrandi A de la figure t) comprend une âme 13a portant amoviblement un chapeau en polyuréthane 16 Le chapeau 16 recouvre la face frontale de l'âme la, a l'oppose de la chandelle 12, et la paroi latérale de l'âme 13a. Le bord annulaire des chapeaux 16 constitue un retour 17 prenant appui sur la face arrière de l'âme la pour assurer la fixation amovible du chapeau 16 sur l'âme 13a. In addition, each compacting head i (see enlarged detail A of FIG. T) comprises a core 13a removably carrying a polyurethane cap 16 The cap 16 covers the front face of the core 1a, opposite the candle 12 , and the side wall of the core 13a. The annular edge of the caps 16 constitutes a return 17 bearing on the rear face of the core 1a to ensure the removable fixing of the cap 16 on the core 13a.
Comme le montre la figure 1, les alvéoles 3 sont évasés vers la surface 4 pour faciliter le démoulage. C'est donc à l'entrée des alvéoles 3 que le jeu est le plus réduit avec les têtes de compactage et d'autre part c'est là qu'il y a risque de collision. Trace au revêtement selon l'invention, le jeu peut être très réduit sans qu'une éventuelle collision soit dommageable. n'autre part, grâce à la mauvaise adhérence du béton sur le revêtement polyuréthane, l'évasement des alveoles 3 peut être moindre qu'avec les outillages connus, ce qui réduit le jeu pilonmatrice au cours de l'éjection et permet de réaliser des produits plus proches des formes idéales. De préf érence la surface du revêtement qui est destinée a être en contact avec le béton a fait l'objet d'un traitement anti-adhésif. As shown in FIG. 1, the cells 3 are flared towards the surface 4 to facilitate demolding. It is therefore at the entrance to the cells 3 that the clearance is most reduced with the compacting heads and on the other hand this is where there is a risk of collision. Trace to the coating according to the invention, the play can be very reduced without any possible collision being damaging. on the other hand, thanks to the poor adhesion of the concrete to the polyurethane coating, the flaring of the alveoli 3 may be less than with known tools, which reduces the ramming clearance during ejection and makes it possible to carry out products closer to ideal shapes. Preferably the surface of the coating which is intended to be in contact with the concrete has been the subject of a non-stick treatment.
La dureté du revêtement mesurée sur les surfaces de contact avec le béton est de préférence comprise entre 60 et 85 shore.The hardness of the coating measured on the contact surfaces with the concrete is preferably between 60 and 85 shore.
Dans l'exemple représenté aux figures s et 4, l'outillage est destiné a fabriquer des parpaings, c'est-à- dire des blocs présentant des évidements définis par des noyaux 18. Chaque alvéole 3 s'étend sur toute la largeur de la matrice 1 et les noyaux 18 sont disposés en deux rangers parallèles selon la longueur de chaque alvéole 3. Dans chaque rangée les noyaux 18 sont portés par une barrette supérieure 19. À chaque extrémité d'alvéole 3, les deux barrettes 19 sont fixées à un longeron 21 de la matrice 1 par un dispositif de fixation commun 2 du genre décrit dans le EP-À-O14O721. Les alvéoles 3. sont séparés entre eux par des cloisons 23 dont la fixation 24 aux longerons 21 est également décrite dans le EP-A-010721. In the example shown in Figures s and 4, the tool is intended to manufacture concrete blocks, that is to say blocks having recesses defined by cores 18. Each cell 3 extends over the entire width of the matrix 1 and the cores 18 are arranged in two parallel rangers along the length of each cell 3. In each row the cores 18 are carried by an upper bar 19. At each end of cell 3, the two bars 19 are fixed to a spar 21 of the matrix 1 by a common fastening device 2 of the type described in EP-A-O14O721. The cells 3. are separated from each other by partitions 23 whose attachment 24 to the side members 21 is also described in EP-A-010721.
Le pilon 2 est adapté à la forme complexe qu'ont les alvéoles 3 en raison de la présence des noyaux 18 et des barrettes 19. C'est pourquoi à la face inférieure du corps li sont fixés des profils 26, 27 en forme de peigne capables de s'engager tous ensemble dans les alvéoles lors de la descente du pilon. The pestle 2 is adapted to the complex shape of the alveoli 3 due to the presence of the cores 18 and the bars 19. This is why profiles 26, 27 in the form of a comb are fixed to the underside of the body li able to engage all together in the alveoli during the descent of the pestle.
Conformément à l'invention, la surface 6 délimitée par les rives 9, la paroi latérale périphérique 14 des alvéoles 3, que cette paroi latérale se trouve sur les longerons 21 ou sur les cloisons 23, et la surface extérieure des noyaux 18 sont portées par un revêtement en polyuréthane analogue à celui décrit à propos des figures t et 2. Les peignes 26 et 27 du pilon 2 sont également entièrement revêtus de polyuréthane, au moins dans leur région inférieure. Les avantages sont les mimes que dans ltexemple des figures 1 et 2. According to the invention, the surface 6 delimited by the edges 9, the peripheral side wall 14 of the cells 3, whether this side wall is on the side members 21 or on the partitions 23, and the outer surface of the cores 18 are carried by a polyurethane coating similar to that described with reference to FIGS. t and 2. The combs 26 and 27 of the pestle 2 are also entirely coated with polyurethane, at least in their lower region. The advantages are the same as in the example of Figures 1 and 2.
L'armature du cadre et celle des peignes peuvent être constituées selon le cas en acier moulé. laminé ou forgé, en aluminium, en résine, en fibre de verre ou tout autre procédé permettant de garantir la résistance mécanique à un coût de fabrication minimal. The frame of the frame and that of the combs can be made of molded steel as appropriate. laminated or forged, in aluminum, resin, fiberglass or any other process which guarantees mechanical resistance at a minimum manufacturing cost.
Dans l'exemple de la figure 3, les noyaux 18 sont constitués d'une enveloppe en tSle soudée aux barrettes 19 et remplie de mousse expansible pour éviter que les noyaux ne se remplissent de laitance du béton. In the example of FIG. 3, the cores 18 consist of a tSle envelope welded to the bars 19 and filled with expandable foam to prevent the cores from filling with laitance of the concrete.
Les figures 5 et 6 représentent un autre mode de réalisation des noyaux. Sur les barrettes 19 sont fixés pour chaque noyau un élément d'accrochage en fer (28) sur lequel est ensuite moulé un bloc de résine 29. Le bloc de résine 29 est recouvert d'un fourreau 31 en polyuréthane amovible ou non .Bien entendu, l'invention n'est pas limitée aux exemples décrits et représentés, et de nombreux aménagements peuvent être apportés à ces exemples sans sortir de son cadre. Figures 5 and 6 show another embodiment of the cores. On the bars 19 are fixed for each core an iron hooking element (28) on which is then molded a resin block 29. The resin block 29 is covered with a sheath 31 in removable or non-removable polyurethane. , the invention is not limited to the examples described and shown, and numerous modifications can be made to these examples without departing from its scope.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8517689A FR2590834A1 (en) | 1985-11-29 | 1985-11-29 | Equipment for casting concrete products which may be immediately removed from the mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8517689A FR2590834A1 (en) | 1985-11-29 | 1985-11-29 | Equipment for casting concrete products which may be immediately removed from the mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2590834A1 true FR2590834A1 (en) | 1987-06-05 |
Family
ID=9325280
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8517689A Pending FR2590834A1 (en) | 1985-11-29 | 1985-11-29 | Equipment for casting concrete products which may be immediately removed from the mould |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2590834A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0895840A2 (en) * | 1997-08-06 | 1999-02-10 | Rampf Formen GmbH | Mould for making concrete building blocks |
| WO2001030552A1 (en) * | 1999-10-28 | 2001-05-03 | Detlef Wowro | Mould for the moulding of blocks or slabs |
| WO2004065089A1 (en) * | 2003-01-24 | 2004-08-05 | Kobra Formen Gmbh | Loading device |
| WO2007141245A1 (en) * | 2006-06-03 | 2007-12-13 | Kobra Formen Gmbh | Mould for mechanical production of moulded concrete bricks, process for producing such a mould, casting mould for such a production process and apparatus having such a mould |
| US20100225023A1 (en) * | 2007-07-23 | 2010-09-09 | S.A.C.M.E. Spa | Machine and method to produce structural elements for the building trade made of cement material, having one or more polymer material inserts |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE388410A (en) * | ||||
| US2324884A (en) * | 1942-03-11 | 1943-07-20 | E J Lavino & Co | Brick press liner |
| DE950356C (en) * | 1951-09-05 | 1956-10-04 | Habil Hans Wahl Dr Ing | Core for hollow brick molds |
| DE2322135A1 (en) * | 1972-05-02 | 1973-12-06 | Vinatex Ltd | REINFORCED SHAPE |
| DE2549759A1 (en) * | 1975-11-06 | 1977-05-18 | Consortium Elektrochem Ind | Concrete objects having a shaped surface - formed in contact with a flexible mould of polysiloxane copolymer |
| EP0004866A1 (en) * | 1978-03-16 | 1979-10-31 | Quickblock Holding AG | Mould for simultaneously manufacturing several hollow concrete blocks |
| DE2846391A1 (en) * | 1978-10-25 | 1980-05-08 | Dasag Deutsche Naturasphalt Gm | Concrete block vibratory mould - has rubber lining on bottom supporting surfaces of outer frame and partitions |
| US4266921A (en) * | 1976-05-20 | 1981-05-12 | U.S. Terrazzo Panels, Inc. | Method and apparatus for the manufacture of concrete and like products |
| DE3241527A1 (en) * | 1982-11-10 | 1984-05-10 | Verschleißtechnik Dr.-Ing. Hans Wahl GmbH & Co, 7302 Ostfildern | Die plate |
-
1985
- 1985-11-29 FR FR8517689A patent/FR2590834A1/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE388410A (en) * | ||||
| US2324884A (en) * | 1942-03-11 | 1943-07-20 | E J Lavino & Co | Brick press liner |
| DE950356C (en) * | 1951-09-05 | 1956-10-04 | Habil Hans Wahl Dr Ing | Core for hollow brick molds |
| DE2322135A1 (en) * | 1972-05-02 | 1973-12-06 | Vinatex Ltd | REINFORCED SHAPE |
| DE2549759A1 (en) * | 1975-11-06 | 1977-05-18 | Consortium Elektrochem Ind | Concrete objects having a shaped surface - formed in contact with a flexible mould of polysiloxane copolymer |
| US4266921A (en) * | 1976-05-20 | 1981-05-12 | U.S. Terrazzo Panels, Inc. | Method and apparatus for the manufacture of concrete and like products |
| EP0004866A1 (en) * | 1978-03-16 | 1979-10-31 | Quickblock Holding AG | Mould for simultaneously manufacturing several hollow concrete blocks |
| DE2846391A1 (en) * | 1978-10-25 | 1980-05-08 | Dasag Deutsche Naturasphalt Gm | Concrete block vibratory mould - has rubber lining on bottom supporting surfaces of outer frame and partitions |
| DE3241527A1 (en) * | 1982-11-10 | 1984-05-10 | Verschleißtechnik Dr.-Ing. Hans Wahl GmbH & Co, 7302 Ostfildern | Die plate |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0895840A2 (en) * | 1997-08-06 | 1999-02-10 | Rampf Formen GmbH | Mould for making concrete building blocks |
| EP0895840A3 (en) * | 1997-08-06 | 1999-07-14 | Rampf Formen GmbH | Mould for making concrete building blocks |
| WO2001030552A1 (en) * | 1999-10-28 | 2001-05-03 | Detlef Wowro | Mould for the moulding of blocks or slabs |
| WO2004065089A1 (en) * | 2003-01-24 | 2004-08-05 | Kobra Formen Gmbh | Loading device |
| WO2007141245A1 (en) * | 2006-06-03 | 2007-12-13 | Kobra Formen Gmbh | Mould for mechanical production of moulded concrete bricks, process for producing such a mould, casting mould for such a production process and apparatus having such a mould |
| US20100225023A1 (en) * | 2007-07-23 | 2010-09-09 | S.A.C.M.E. Spa | Machine and method to produce structural elements for the building trade made of cement material, having one or more polymer material inserts |
| US8801422B2 (en) * | 2007-07-23 | 2014-08-12 | S.A.C.M.E. Srl | Machine and method to produce structural elements for the building trade made of cement material, having one or more polymer material inserts |
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