EP0415435A2 - Dispositif de fabrication de blocs en béton imitant les pierres naturelles - Google Patents

Dispositif de fabrication de blocs en béton imitant les pierres naturelles Download PDF

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Publication number
EP0415435A2
EP0415435A2 EP90116719A EP90116719A EP0415435A2 EP 0415435 A2 EP0415435 A2 EP 0415435A2 EP 90116719 A EP90116719 A EP 90116719A EP 90116719 A EP90116719 A EP 90116719A EP 0415435 A2 EP0415435 A2 EP 0415435A2
Authority
EP
European Patent Office
Prior art keywords
mold
casting
molds
grid
casting molds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP90116719A
Other languages
German (de)
English (en)
Other versions
EP0415435B1 (fr
EP0415435A3 (en
Inventor
Michael D. Wolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT90116719T priority Critical patent/ATE103234T1/de
Publication of EP0415435A2 publication Critical patent/EP0415435A2/fr
Publication of EP0415435A3 publication Critical patent/EP0415435A3/de
Application granted granted Critical
Publication of EP0415435B1 publication Critical patent/EP0415435B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials 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
    • 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
    • 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
    • B28B13/04—Discharging the shaped articles
    • B28B13/06—Removing the shaped articles from moulds
    • 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
    • B28B15/00—General arrangement or layout of plant ; Industrial outlines or plant installations
    • 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
    • B28B7/26—Assemblies of separate moulds, i.e. of moulds or moulding space units, each forming a complete mould or moulding space unit independently from each other

Definitions

  • the invention relates to a device for producing natural stones by pouring cement materials into essentially pot-shaped casting molds consisting of elastic material, the mold side walls of which are held by a removable mold holding frame which surrounds the mold side walls.
  • Casting molds of this type for the production of natural stones are known (DE-OS 37 40 682).
  • the slits which enable the cast stone to be molded out of the elastic casting mold, run in two opposite side walls.
  • the known molds must be filled individually; the stones are also shaped separately after hardening for each individual casting mold, it being necessary to bend the two halves of the casting mold, which each grip around the stone in a clamp-like manner, by hand or by means of tools suitable for this purpose.
  • the production speed that can be achieved in this way is relatively low; extensive mechanization or automation of the manufacturing process is not possible.
  • the object of the invention is therefore to provide a device of the type mentioned at the outset, which makes it possible to produce natural stones in large quantities in largely mechanized work processes.
  • This object is achieved in that a plurality of casting molds are fastened in a grid-like manner, each at a distance from one another on a base plate which can be raised and pivoted about a horizontal axis, and in that the mold holding frame of all the casting molds is combined to form a frame grid which is flush with the upper edges of the casting molds is deductible and can be raised from this.
  • All of the casting molds fastened on a common base plate can be filled in a single work step, the measures required for the filling process, such as shaking and smoothing the filled casting molds, being carried out jointly for all casting molds.
  • the molding takes place in a very simple manner in terms of production technology in that the base plate with the casting molds attached to it is raised and turned. All casting molds release the shaped stones under the action of mechanical work processes - for example shaking - or the action of centrifugal forces.
  • the production of natural stones can be carried out both on element ceiling production plants and on stone production plants, with only minor design and manufacturing changes being required compared to the conventional designs and equipment of these plants. That way it is It is possible to better utilize existing element ceiling manufacturing plants and stone manufacturing plants, which could previously only be used for a narrow product area, by also covering another product area, namely the production of natural stones from concrete, for example as paving stones, curbs, curbs or the like can.
  • the frame grid completely bridges the distances between the casting molds. This makes it possible to fill all the casting molds which are mounted on a common base plate or on a plurality of successive base plates by means of a common filling device without excess material getting between the casting molds.
  • the shape holding frame can also be chosen so large that several swiveling base plates can be combined into one unit and filled at the same time.
  • slots extending to the mold bottom are provided in diagonal planes of the casting molds and run through the one or more corners of the casting mold connecting the two side walls in each case. This arrangement of the slots ensures that the molds open particularly easily after the base plate has been turned over to expose the shaped stone.
  • the casting molds 1 shown in FIGS. 1 to 3 consist of elastic polyurethane foam and were created by molding natural stones in specially developed tools, for example basalt Paving stones or any other natural stone.
  • the essentially pot-shaped casting molds 1 each have a mold base 2 with integrally connected mold side walls 3.
  • the mold side walls extend to an upper opening 4, through which the mold 1 can be filled with the casting material. It is primarily a casting material based on cement materials.
  • the mold 1 normally has no slots (Fig. 2a), although the mold cavity has undercuts due to the irregular shape of its walls. If a mold cavity has above-average undercuts, the casting mold 1 can have one or two slots 5 running in the diagonal planes to the mold bottom (FIGS. 2b and 2c). The slots 5 make it possible to mold the mold cavity 6 of each hardened stone formed in the casting mold 1.
  • each casting mold metal plates 7, for example two strip-shaped metal plates 7, are inserted, which have threaded bores 8, into each of which a countersunk screw 9 is screwed.
  • a countersunk screw 9 is screwed.
  • the base plate 10 has a horizontal pivot pin 11 on each of two opposite sides (FIG. 1), which can be accommodated in a rotary hanger 12 (only partially indicated in FIG. 1) pivotable about a horizontal axis.
  • the rotary hanger 12 receives the pivot pin 11 in a rotary joint 13, which is preferably designed as a ball joint.
  • the base plate 10 can also do without the pivot pin 11 installed on two opposite sides. It can be picked up, lifted off and emptied overhead using a pick-up device of a specially designed and built emptying machine (FIG. 9).
  • a frame grid 14 can be lowered mechanically onto the grid of casting molds 1 in such a way that all the grid bars of the frame grid 14 for all casting molds 1, which are arranged on one or more successive common base plates 10, each form a mold holding frame, which holds each individual casting mold 1 in the in 1 and 2, closed position shown.
  • the bars of the frame grid 14 are so wide that they completely bridge the distance 15 between adjacent molds 1.
  • the upper outer edges 16 of all casting molds 1 are rounded (as shown in FIG. 1) or beveled.
  • the frame grille 14 can be lowered so far between the molds 1 that it runs flush with the upper edges 17 of the molds 1 on the upper side.
  • the frame grid 14 holds the molds 1 in the closed position shown, in which the molds 1 are filled.
  • the frame grid 14 can be lifted off.
  • the base plate 10 is pivoted through 180 °.
  • a machine device specially developed for this purpose can be integrated into each system circuit in such a way that it receives the form fields 21 - coming from the vertical ladder of each system circuit - individually or in groups from the belt and places them freely on a funnel 35a overhead (FIG. 9) .
  • a metal plate 35b - with a vibration motor 35c mounted vertically to the axis - is now placed freely on the rotated mold field 21.
  • the vibration motor 35c rotates the entire mold field 21 with the casting molds 1 fastened thereon.
  • the centrifugal forces generated in this way cause the friction between the natural stone made of concrete, the side walls and the bottom of the casting mold 1 to be canceled and the natural stone is released from the casting mold 1 due to its inertia and falls down. It falls onto a conveyor device integrated in the machine and is then transported differently - via conveyor system to the warehouse or directly into a transport container.
  • the work of the vibration motor 35c can be clocked. This creates an additional positive shaking effect.
  • the form field 21 or the form fields 21 which have been emptied in this way are now placed on the belt again overhead and are thus made available to the system circuit for refilling.
  • the material used for the production of the natural stones passes via a lifting device 18 and from a cement silo 19 into a mixing station 20, in which the concrete used as casting material is mixed.
  • a mixing station 20 in which the concrete used as casting material is mixed.
  • Each unit consisting of a base plate 10 and casting molds 1 fastened thereon, forms a mold field 21.
  • Several such mold fields 21, prepared and sprayed with release agent, are stacked at the beginning of the system (on the right in FIG. 5).
  • the bottom mold field 21 is pulled off the stack and transported to a casting station 22.
  • the form field 21 rests there on a vibrator 22a.
  • a mold box 24 guided on vertical guide rods 23 with an integrated frame grid 14 slips over the mold field 21 located in the casting station 22 and only leaves the molds 1 to be filled free, as can also be seen in detail from FIG. 6. This process can also be accomplished with several successive form fields 21.
  • a feeder 26 arranged under a concrete hopper 25 with an integrated cellular wheel sluice 25a under the mixing station 20 runs on two guide rails 27 arranged on the molding box 24 with an integrated frame grid 14 over the mold field or molds 21 and fills the casting molds 1 of this mold field 21, the vibrator being actuated at the same time .
  • the process of filling and shaking is repeated until the molds 1 are completely filled with concrete.
  • the feeder 26 moves back into its starting position.
  • the molding box 24 with integrated frame grid 14 is raised hydraulically and releases the molding field (s) 21.
  • the molding field 21 then runs to the next station via a conveyor 28, for example a cable conveyor.
  • a conveyor 28 for example a cable conveyor.
  • the surface of the molding field 21 is cleaned of concrete residues by means of a driven cleaning brush 29.
  • the form fields 21 arrive in a lifting ladder 32, in which they are raised in pairs one after the other.
  • a stack of form fields 21 is removed from the lifting ladder 32 by means of a movable lifting platform 33 and brought into a drying station 34 (FIG. 4).
  • the shaped fields 21 are removed from this and fed to a shaping station 35.
  • the form fields 21 are emptied individually or in groups at the same time.
  • the base plates 10 are picked up, raised, rotated through 180 ° and emptied in the ways already described.
  • the base plate 10 is then rotated again by 180 ° into its starting position and fed back to the stack at the beginning of the system.
  • the mold fields with the molds attached to them are sprayed with release agent in a spraying system.
  • the stones formed in the emptying station 35 are removed by a transport device 37.
  • FIG. 4a shows the plane II indicated in FIG. 4 in a side view
  • Fig. 4b shows the plane III shown in Fig. 4 in side view.
  • the casting molds can also be used on a conventional element ceiling production system, as shown in FIGS. 7 and 8.
  • the system has so-called element cover sheets 38. These are essentially flat tables, which are covered in the workflow described here with the previously described form fields 21 and a frame grid.
  • a carriage 39 which contains the freshly prepared concrete, travels over the form fields 21 lying on the element cover sheet 38.
  • the carriage 39 contains a drivable screw conveyor 40, which conveys the concrete, for example, through a hose 41 from a (not shown) concrete mixing plant, continuously via the casting molds 1 of the mold field 21 and fills them.
  • the concreting car 39 is - as indicated in FIG. 8 - carried by a crane or another lifting device and can be transported to the individual element cover sheets 38. After the casting molds have been filled, the frame grid 14 is removed in each case, and the mold fields 21 are brought onto a transport carriage 41, on which they are stored until the concrete has hardened.
  • the individual shaped fields 21 on the transport carriage 41 each become one or more of the rotating hangers shown in FIG. 1 12 raised and rotated by 180 ° and emptied via an emptying station onto a conveyor belt or into a transport container (as described above).

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds, Cores, Or Mandrels (AREA)
  • Revetment (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Underground Or Underwater Handling Of Building Materials (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
EP90116719A 1989-09-01 1990-08-31 Dispositif de fabrication de blocs en béton imitant les pierres naturelles Expired - Lifetime EP0415435B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90116719T ATE103234T1 (de) 1989-09-01 1990-08-31 Vorrichtung zum herstellen von natursteinen aus beton.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3928969A DE3928969A1 (de) 1989-09-01 1989-09-01 Vorrichtung zum herstellen von natursteinimitaten
DE3928969 1989-09-01

Publications (3)

Publication Number Publication Date
EP0415435A2 true EP0415435A2 (fr) 1991-03-06
EP0415435A3 EP0415435A3 (en) 1991-11-21
EP0415435B1 EP0415435B1 (fr) 1994-03-23

Family

ID=6388361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90116719A Expired - Lifetime EP0415435B1 (fr) 1989-09-01 1990-08-31 Dispositif de fabrication de blocs en béton imitant les pierres naturelles

Country Status (3)

Country Link
EP (1) EP0415435B1 (fr)
AT (1) ATE103234T1 (fr)
DE (2) DE3928969A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244951A (en) * 1990-06-13 1991-12-18 Banagher Structures Ltd Method and apparatus for removing a cast product from a mould by impact
EP0579571A1 (fr) * 1992-07-14 1994-01-19 Jose Cantos-Torro Procédé pour la fabrication, la prise, la protection et le transport de balustres de tous type
CN111152353A (zh) * 2020-03-18 2020-05-15 刘小明 一种古建青瓦砖雕脱模装置
CN112339102A (zh) * 2020-11-06 2021-02-09 泉州市益鑫机械科技有限公司 一种免托板制砖机

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504782C5 (de) * 1995-02-14 2013-03-28 Roland Müller Verfahren und Formkörper für die Herstellung von künstlichen Felsformationen
DE19722060A1 (de) * 1997-05-27 1998-12-03 Horst Braun Estrichboden sowie eine Vorrichtung zur Herstellung einer Betonplatte für einen Estrichboden

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3032851A (en) * 1959-01-27 1962-05-08 Gibbs Frederic Markell Apparatus for making and stacking concrete blocks
GB8718934D0 (en) * 1987-08-11 1987-09-16 Stockport Fencing Ltd Concrete posts
DE3740682A1 (de) * 1987-12-01 1989-06-15 Gabriele Donath Verfahren und vorrichtung zum herstellen eines naturgetreu nachgebildeten steines, vorzugsweise eines pflastersteines

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244951A (en) * 1990-06-13 1991-12-18 Banagher Structures Ltd Method and apparatus for removing a cast product from a mould by impact
EP0579571A1 (fr) * 1992-07-14 1994-01-19 Jose Cantos-Torro Procédé pour la fabrication, la prise, la protection et le transport de balustres de tous type
CN111152353A (zh) * 2020-03-18 2020-05-15 刘小明 一种古建青瓦砖雕脱模装置
CN111152353B (zh) * 2020-03-18 2021-04-09 安徽龙钰徽派古建工艺制品有限公司 一种古建青瓦砖雕脱模装置
CN112339102A (zh) * 2020-11-06 2021-02-09 泉州市益鑫机械科技有限公司 一种免托板制砖机

Also Published As

Publication number Publication date
EP0415435B1 (fr) 1994-03-23
DE3928969A1 (de) 1991-03-07
EP0415435A3 (en) 1991-11-21
ATE103234T1 (de) 1994-04-15
DE59005076D1 (de) 1994-04-28

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