EP1745904A2 - Procédé pour la fabrication des carreaux ou plaques en céramique ayant l'aspect esthétique de la pierre naturelle, et appareil associé - Google Patents

Procédé pour la fabrication des carreaux ou plaques en céramique ayant l'aspect esthétique de la pierre naturelle, et appareil associé Download PDF

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Publication number
EP1745904A2
EP1745904A2 EP06076158A EP06076158A EP1745904A2 EP 1745904 A2 EP1745904 A2 EP 1745904A2 EP 06076158 A EP06076158 A EP 06076158A EP 06076158 A EP06076158 A EP 06076158A EP 1745904 A2 EP1745904 A2 EP 1745904A2
Authority
EP
European Patent Office
Prior art keywords
powders
container
compressed air
layer
air flow
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.)
Withdrawn
Application number
EP06076158A
Other languages
German (de)
English (en)
Other versions
EP1745904A3 (fr
Inventor
Silvano Sacmi Cooperativa Meccanici Valli
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.)
Sacmi Imola SC
Original Assignee
Sacmi Imola SC
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 Sacmi Imola SC filed Critical Sacmi Imola SC
Publication of EP1745904A2 publication Critical patent/EP1745904A2/fr
Publication of EP1745904A3 publication Critical patent/EP1745904A3/fr
Withdrawn legal-status Critical Current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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/005—Devices or processes for obtaining articles having a marble appearance

Definitions

  • the present invention refers to a method for the forming of ceramic tiles or slabs reproducing the typical characteristics of the natural stones and a related apparatus.
  • the present invention refers to a method and related apparatus for the forming of ceramic tiles or slabs reproducing the typical visible aspects of the natural stones, altering the prearranged veining arrangement in powders forming a layer to be compacted.
  • Object of the present invention is that of providing a method and related apparatus which permits satisfying the aforesaid needs and overcoming at the same time the drawbacks mentioned with reference to the prior art.
  • the apparatus comprises, in its most general form, a container adapted to contain a layer 100 of coloured powders to be compacted having a prearranged arrangement and compressed air blowing means adapted to insert an air flow inside the container through at least one hole 3, so to locally alter the prearranged arrangement of the powders.
  • the hole has a very small diameter in relation to the thickness, so to have a reduced air flow rate at high speed.
  • the layer 100 is conveyed towards forming means adapted to compact the powders.
  • the container is a carriage 20 adapted to move atop a surface 30 between a back position (Fig. 1), wherein it receives (by not illustrated, prior art means) the coloured powders which form at its interior the layer 100 to be compacted, having a substantially constant thickness S, and an advanced position, not illustrated, wherein it loads a forming cavity 50 of the tile.
  • the carriage 20 laterally has the hole 3, through which the compressed air is inserted (Fig. 2). Although only one hole 3 is illustrated it is possible to foresee several holes through which compressed air is blown, also arranged on opposite sides.
  • the compressed air blowing means is a compressed air blower, schematised in figure 2 and indicated with 2.
  • the insertion pressure of the compressed air can be adjusted with known means, such as an electric valve 4 which intercepts the air input conduit.
  • a movable plate 20b associated with the carriage 20 and adapted to slide in relation to it so to be able to close the lower opening, as is visible in figure 2.
  • This embodiment is well adapted for carriages 20 containing a great volume of powders; however, for reduced volumes it is possible that the powders can exit during the insertion of compressed air, through the upper opening which has been left open. In such case, it is possible to foresee the use, in association with the lower plate 20b, of a further plate 20a adapted to close the upper opening of the carriage 20 (Figs.1A,2A).
  • the exit of the air inserted in the carriage 20 closed by both plates 20a,20b, the wall of the carriage 20 opposite to that from which the air is inserted is provided with an air discharge valve, not illustrated.
  • valve With respect to the insertion hole, situated on the opposite wall, determines the progression of the line of air in the powders and therefore the position of the "crack" marked by the broken line in the figures.
  • the carriage is brought towards the forming cavity 50 according to the prior art, and subsequently the lower plate 20b, and if present the upper plate 20a, accompany the carriage 20 until they arrive above the mould cavity 50, then the plates 20a,20b are removed to permit the loading of the powder in the mould. If the used plate has a high thickness, it may be removed from the carriage 20 at the edge of the mould.
  • the pressure of the compressed air can be adjusted as desired, as a function of the desired aesthetic effect.
  • operation takes place at a pressure in the range of 0.2 - 6 bars through a hole having a diameter in the range of 1 - 8 mm.
  • the container is a vertical hopper 40 with a loading opening 6 above and an unloading opening 7 below.
  • the hopper 40 is placed above a horizontal movable surface 10 and has a parallelepiped conformation with the two faces 40a,40b with larger surface placed perpendicular to the advancing direction of the movable surface 10, indicated with an arrow in Fig. 4, and therefore with the remaining two opposite vertical faces 40c,40d placed parallel to the advancing direction of the surface 10.
  • the distance between the two faces 40a,40b with larger surface is preferably equal to the thickness S of the layer 100 of powders to be compacted.
  • the distance between the unloading opening 7 and the underlying movable surface 10 is equal to that of the thickness S of the layer 100 to be compacted, so that the exit speed of the powders from the hopper is approximately equal to that of the movable surface 10.
  • the compressed air flow is preferably inserted in a substantially horizontal direction.
  • the method and apparatus for the forming of ceramic tiles or slabs reproducing the typical characteristics of the natural stones according to the present invention permits satisfying the needs and overcoming the drawbacks as stated in the introductive part of the present description with reference to the prior art.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Aftertreatments Of Artificial And Natural Stones (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP06076158A 2005-07-19 2006-06-02 Procédé pour la fabrication des carreaux ou plaques en céramique ayant l'aspect esthétique de la pierre naturelle, et appareil associé Withdrawn EP1745904A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRE20050083 ITRE20050083A1 (it) 2005-07-19 2005-07-19 Metodo per la formatura di piastrelle o lastre ceramiche riproducenti le caratterisitche tipiche delle pietre naturali e relativo apparato

Publications (2)

Publication Number Publication Date
EP1745904A2 true EP1745904A2 (fr) 2007-01-24
EP1745904A3 EP1745904A3 (fr) 2009-09-30

Family

ID=37192654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06076158A Withdrawn EP1745904A3 (fr) 2005-07-19 2006-06-02 Procédé pour la fabrication des carreaux ou plaques en céramique ayant l'aspect esthétique de la pierre naturelle, et appareil associé

Country Status (4)

Country Link
EP (1) EP1745904A3 (fr)
CN (1) CN1903533A (fr)
IT (1) ITRE20050083A1 (fr)
RU (1) RU2006124429A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102505765B (zh) * 2011-10-14 2013-11-20 青岛科瑞新型环保材料有限公司 保温板芯料的装粉压实工艺和设备
CN108460239B (zh) * 2018-04-16 2019-06-07 佛山市顺德区海瑞斯装饰工程有限公司 一种面向瓷砖分布计算装置的安装方法
IT201900011025A1 (it) * 2019-07-05 2021-01-05 Sacmi Metodo ed apparato per la realizzazione di prodotti ceramici

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0557715A (ja) * 1991-08-30 1993-03-09 Inax Corp 模様付き陶磁器品及びその製造方法
EP0927687A2 (fr) * 1997-12-23 1999-07-07 Maris Algeri Procédé et dispositif pour transférer un matériau granuleux
EP0974437A2 (fr) * 1998-07-23 2000-01-26 Cca Inc. Méthode pour la fabrication d'objets moulés avec motifs

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0557715A (ja) * 1991-08-30 1993-03-09 Inax Corp 模様付き陶磁器品及びその製造方法
EP0927687A2 (fr) * 1997-12-23 1999-07-07 Maris Algeri Procédé et dispositif pour transférer un matériau granuleux
EP0974437A2 (fr) * 1998-07-23 2000-01-26 Cca Inc. Méthode pour la fabrication d'objets moulés avec motifs

Also Published As

Publication number Publication date
EP1745904A3 (fr) 2009-09-30
ITRE20050083A1 (it) 2007-01-20
RU2006124429A (ru) 2008-01-20
CN1903533A (zh) 2007-01-31

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