EP1745905A2 - System zur Änderung der Struktur von einem pulverförmigen Material zur Formung eines Bandes zur Herstellung von keramischen Fliesen oder Platten - Google Patents

System zur Änderung der Struktur von einem pulverförmigen Material zur Formung eines Bandes zur Herstellung von keramischen Fliesen oder Platten Download PDF

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Publication number
EP1745905A2
EP1745905A2 EP06076159A EP06076159A EP1745905A2 EP 1745905 A2 EP1745905 A2 EP 1745905A2 EP 06076159 A EP06076159 A EP 06076159A EP 06076159 A EP06076159 A EP 06076159A EP 1745905 A2 EP1745905 A2 EP 1745905A2
Authority
EP
European Patent Office
Prior art keywords
base layer
powders
strip
forming
hopper
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Withdrawn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
EP06076159A
Other languages
English (en)
French (fr)
Other versions
EP1745905A3 (de
Inventor
Silvano c/o SACMI 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 EP1745905A2 publication Critical patent/EP1745905A2/de
Publication of EP1745905A3 publication Critical patent/EP1745905A3/de
Withdrawn legal-status Critical Current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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/005—Devices or processes for obtaining articles having a marble appearance
    • 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
    • B28B13/022—Feeding several successive layers, optionally of different materials
    • 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 present invention refers to a system for altering the arrangement of the powders forming a strip for the forming of ceramic tiles or slabs.
  • the present invention refers to a system for altering the arrangement of the powders which form the visible surface of ceramic tiles or slabs.
  • a prearrangement facility of coloured powders for the forming of ceramic tiles or slabs, comprising a vertical hopper placed above a movable horizontal surface on which a base layer of monochromatic ceramic powders advances.
  • the hopper has a parallelepiped shape with a first pair of faces, called laterals, arranged parallel to the advancing direction of the base layer and a second pair of faces, front and rear respectively, arranged perpendicular to the advancing direction of the base layer.
  • the distance between the front face and the rear face is equal to the thickness of the strip of coloured powders to be deposited on the layer of base powders.
  • the coloured powders are loaded from the opening above and unloaded from the opening below placed at a distance from the base layer equal to the thickness of the strip.
  • the powders are loaded into the hopper in a prearranged manner by means of appropriate feeding means and continuously descend onto the underlying moving base strip. In such a manner, a strip of coloured powders is formed on the base layer, reproducing the same prearranged arrangement of the powders present in the hopper.
  • Said facility permits not only continuously forming ceramic slabs of the desired thickness by simply varying the distance between the front and rear faces, and, proportionally, the distance between the unloading opening and the base strip, but also realising slabs having the visible surface which imitate natural stones, like marble and granite.
  • Object of the present invention is that of providing a system for altering the arrangement of the powders forming a strip for the forming of ceramic tiles or slabs having structural and functional characteristics such to satisfy the aforesaid needs and to remedy at the same time the aforesaid drawbacks.
  • the system comprises a vertical hopper 34 placed above a surface 2, movable in the direction of the arrow of figure 1, adapted to transport a predefined layer 200 of ceramic powders, simply called base layer.
  • the base layer 200 is realised with ceramic powders exiting from a dispenser 70 having unloading mouth closed by a small door 71. Said powders are unloaded on top of said horizontal movable surface 2 and appropriately levelled by means of a scraper 72 adapted to adjust the thickness of the base layer 200.
  • the hopper 34 has a parallelepiped conformation with a first pair of faces 34c, called laterals, arranged parallel to the advancing direction of the movable surface 2 and a second pair of faces 34a,34b, front and rear, respectively, arranged perpendicular to the advancing direction of the movable surface 2.
  • the hopper 34 is loaded from an opening 37 above by appropriate feeding means, not illustrated here for display ease, with coloured powders 33, which are arranged in a prearranged manner and continuously descend by gravity through a lower opening 38, the latter placed at a distance from the base layer 200 (which is transported by the surface 2) equal to the thickness "S" of the strip 100 of coloured powders to be deposited.
  • the hopper 34 has the distance "B" between the front face 34a and the rear face 34b equal to the thickness S of the strip 100 of coloured powders to be deposited on the base layer 200.
  • a layer 100 of coloured powders can be formed, reproducing the same prearranged arrangement of the coloured powders 33 present in the hopper 34.
  • the prearranged arrangement of the coloured powders 33 forming the strip 100 is adapted to reproduce the typical veining of the natural stones.
  • the system comprises means for creating, on the base layer 200, upstream of the hopper 34, grooves 20 which will be subsequently filled, during the advancing of the base layer 200, with the coloured powders 33 exiting from the hopper 34.
  • Such grooves 20 cause an alteration of the prearranged arrangement of the coloured powders 33 forming the strip 100, which without such grooves 20 would reproduce the same arrangement of the powders 33 present in the hopper 34.
  • said means for creating grooves 20 comprise a groove maker which can be vertically moved between a raised position, visible in the figures, wherein it does not interfere with the advancing underlying base layer 200 and a lowered position, not illustrated, wherein it intercepts a portion of the powders forming the base layer, creating a groove 20.
  • Said interruption element 10 is a scraper having a width preferably comprised between 1/3 and 1/10 of the width "L" of the hopper 34.
  • the groove maker 10 is placed adjacent to the levelling rod 72, in the example on the downstream side with respect to the advancing direction of the base layer 200. Due to such particular arrangement, the action of the groove maker element 10, during the creation of the groove 20, does not cause an alteration of the thickness of the powders of the base layer 200 surrounding the groove 20 itself.
  • the groove maker element 10 In order to obtain variations of the desired effect, it is necessary to modify the point wherein the groove is created and/or the size of the groove. For example, it is possible to make the groove maker element 10 slidable along a direction perpendicular to the advancing direction, as well as to vary the stay time in the lowered position, the lowering distance and the width of the groove maker element 10.
  • an aspirator (not shown) as means to create grooves, which can be movable and which sucks on the base layer to create the desired groove.
  • the system for altering the arrangement of the powders forming a strip for the forming of ceramic tiles or slabs according to the present invention permits satisfying the needs and overcoming the drawbacks stated in the introductive part of the present description.
  • the system of the present invention permits obtaining a strip of coloured powders deposited over a base layer to be compacted for the forming of slabs reproducing the typical motifs of the natural stones on their surfaces, comprising the "defects" caused by some natural phenomena such as fault slips, cracks etc.

Landscapes

  • 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)
  • Producing Shaped Articles From Materials (AREA)
EP06076159A 2005-07-19 2006-06-02 System zur Änderung der Struktur von einem pulverförmigen Material zur Formung eines Bandes zur Herstellung von keramischen Fliesen oder Platten Withdrawn EP1745905A3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRE20050086 ITRE20050086A1 (it) 2005-07-19 2005-07-19 Sistema per alterare la disposizione delle polveri formanti una striscia per la formatura di piastrelle o lastre ceramiche

Publications (2)

Publication Number Publication Date
EP1745905A2 true EP1745905A2 (de) 2007-01-24
EP1745905A3 EP1745905A3 (de) 2009-09-30

Family

ID=37192672

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06076159A Withdrawn EP1745905A3 (de) 2005-07-19 2006-06-02 System zur Änderung der Struktur von einem pulverförmigen Material zur Formung eines Bandes zur Herstellung von keramischen Fliesen oder Platten

Country Status (4)

Country Link
EP (1) EP1745905A3 (de)
CN (1) CN1899787A (de)
IT (1) ITRE20050086A1 (de)
RU (1) RU2006124427A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2050549A3 (de) * 2007-10-15 2010-11-10 SACMI Cooperativa Meccanici Imola Società Cooperativa Vorrichtung zur kontinuierlichen Zufuhr von Pulvern beim Herstellen von Keramikfliesen
CN104626338A (zh) * 2015-02-11 2015-05-20 江苏天鹏机电制造有限公司 一种辊压彩瓦成型设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0768996A (ja) * 1993-08-24 1995-03-14 C C A Kk かき動かし部材を用いた模様入り成形体の成形方法
IT1287505B1 (it) * 1996-11-22 1998-08-06 Algeri Maris Metodo e mezzi per la pressatura di piastrelle ceramiche.
ITRE20040001A1 (it) * 2004-01-08 2004-04-08 Sacmi Metodo ed impianto di predisposizione delle polveri per la formatura di piastrelle o lastre ceramiche

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2050549A3 (de) * 2007-10-15 2010-11-10 SACMI Cooperativa Meccanici Imola Società Cooperativa Vorrichtung zur kontinuierlichen Zufuhr von Pulvern beim Herstellen von Keramikfliesen
CN104626338A (zh) * 2015-02-11 2015-05-20 江苏天鹏机电制造有限公司 一种辊压彩瓦成型设备

Also Published As

Publication number Publication date
EP1745905A3 (de) 2009-09-30
ITRE20050086A1 (it) 2007-01-20
RU2006124427A (ru) 2008-01-20
CN1899787A (zh) 2007-01-24

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