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WO2020065509A1 - Procédé et équipement de fabrication de dalles en céramique et/ou de matériau en pierre - Google Patents

Procédé et équipement de fabrication de dalles en céramique et/ou de matériau en pierre Download PDF

Info

Publication number
WO2020065509A1
WO2020065509A1 PCT/IB2019/058067 IB2019058067W WO2020065509A1 WO 2020065509 A1 WO2020065509 A1 WO 2020065509A1 IB 2019058067 W IB2019058067 W IB 2019058067W WO 2020065509 A1 WO2020065509 A1 WO 2020065509A1
Authority
WO
WIPO (PCT)
Prior art keywords
slab
flake
shaped elements
ceramic
fact
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.)
Ceased
Application number
PCT/IB2019/058067
Other languages
English (en)
Inventor
Fabio TAROZZI
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.)
Siti B&T Group SpA
Original Assignee
Siti B&T Group SpA
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 Siti B&T Group SpA filed Critical Siti B&T Group SpA
Publication of WO2020065509A1 publication Critical patent/WO2020065509A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/0053—Machines or methods for applying the material to surfaces to form a permanent layer thereon to tiles, bricks or the like
    • 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
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0018—Separating articles from each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B44—DECORATIVE ARTS
    • B44F—SPECIAL DESIGNS OR PICTURES
    • B44F9/00—Designs imitating natural patterns
    • B44F9/04—Designs imitating natural patterns of stone surfaces, e.g. marble

Definitions

  • the present invention relates to a process and equipment for the manufacture of slabs of ceramic and/or stone material.
  • the manufacture of slabs made of ceramic and/or stone material generally comprises a deposition phase of a basic material, which can be made up of a ceramic material, i.e. based on clay or silica, or a mixture of minerals in granular form (e.g. marble, granite, glass, fragments of mirror, and/or others) as well as quartz powder and, in fact, resins that act as binders, on a supporting element, such as a belt or a mould, to form a slab to be compacted, and a subsequent pressing phase, so as to obtain a compacted slab.
  • a basic material which can be made up of a ceramic material, i.e. based on clay or silica, or a mixture of minerals in granular form (e.g. marble, granite, glass, fragments of mirror, and/or others) as well as quartz powder and, in fact, resins that act as binders, on a supporting element, such as a belt or a mould, to form a slab to be compacte
  • the surface appearance taken by the slab changes.
  • the slabs thus obtained may have even coloring, may have flakes of various sizes and colors or veins depending on the type of loaded material.
  • the trend today is to look for new aesthetic effects, so as to offer the market a wide range of products.
  • a limitation of the known types of product is that the obtained aesthetic effect is strongly bound to the type and conformation of the basic material loaded into the hopper.
  • the main aim of the present invention is to devise a process for the manufacture of slabs of ceramic and/or stone material that allows obtaining different aesthetic effects compared to the products known today and not strictly bound to the size of the basic material used.
  • Another object of the present invention is to devise a process for the manufacture of slabs of ceramic and/or stone material that allows overcoming the mentioned drawbacks of the prior art in a simple, rational, easy, effective to use and low cost solution.
  • Figure 1 is a schematic and partial representation of a piece of equipment for the execution of the process according to the invention during the dispensing phase of a basic material
  • Figure 2 is a schematic and partial representation of the equipment of Figure 1 during the compaction phase of a basic material
  • Figure 3 is a schematic and partial representation of the equipment of Figure 1 during the breaking phase and during the spacing away phase of the compacted basic material;
  • Figure 4 is a top view of the slab obtained after the spacing away phase
  • Figure 5 is a schematic and partial representation of the equipment of Figure 1 during the dispensing phase of a filling material
  • Figure 6 is a schematic and partial representation of the equipment of Figure 1 during the pressing phase
  • Figure 7 is a top view of the slab obtained according to the invention.
  • reference numeral 1 globally indicates a piece of equipment for the manufacture of slabs of ceramic and/or stone material.
  • the piece of equipment 1 comprises a bearing frame 2 with at least one supporting surface 3 associated therewith.
  • the supporting surface 3 is of the type of a belt or of the type of a mould.
  • the supporting surface 3 can also be moved along one direction of forward movement or, alternatively, can be of the fixed type.
  • the supporting surface 3 is of the type of a belt and can be moved alternately along a first direction Dl and along a second direction D2, substantially parallel but opposite each other.
  • the equipment 1 then comprises first dispensing means 4 of at least one basic material 5 of the ceramic and/or stone type in powder and/or granulate and/or flake form on the supporting surface 3 to obtain a first slab Ll.
  • the first dispensing means 4 comprise at least one hopper 6 provided with an outlet port 7 extending along a dispensing direction Z and placed above the supporting surface 3.
  • the supporting surface 3 is adapted to be initially moved along the first direction Dl and the dispensing direction Z is substantially transverse to the first direction Dl.
  • the hopper 6 is provided with at least one inlet port 8 to allow the insertion of the basic material 5 therein.
  • the basic material 5 contained inside the hopper 6 can be of the ceramic type, in the form of atomized products, grains or flakes, and/or stone type (such as marble, granite, minerals or other natural stones) in the form of powder and/or granulates and/or flakes and mixed with a cement or resinous binder.
  • the basic material 5 may consist of a single type of material, or of a plurality of primary materials of different types and/or with different colors.
  • the basic material 5 contained in the hopper 6 may therefore have a substantially uniform grain size and color, or it may be composed of a plurality of different materials, in terms of type and/or coloring, mixed together or superimposed to define a plurality of layers.
  • the first slab Ll has a lower surface 9 positioned resting on the supporting surface 3 and an upper surface 10 opposed to the lower surface 9.
  • the equipment 1 comprises compaction means 11 of the first slab Ll, placed downstream of the first dispensing means 4, according to the first direction D 1.
  • the compaction means 11 are of a type known to the industry technician and may vary constructively depending on several factors, including the nature of the basic material 5 used.
  • the compaction means 11 may be of the dynamic type or of the static type.
  • compaction means 11 are of the dynamic type, they comprise a pair of belts adapted to contact the opposite faces of the slab to be contacted during the forward movement thereof.
  • one of these belts is of the type of a buffer that is adapted to exert a force of predefined intensity on the slab to be compacted, the other slab acting as a counteracting element.
  • a buffer is provided which exerts a pressing force on the slab to be compacted when this is stationary.
  • the compaction means 11 are adapted to exert a pressing force of predefined intensity on the first slab Ll, to obtain a first compacted slab Ll.
  • the equipment 1 comprises breaking means 12 of the first compacted slab Ll to obtain a plurality of flake- shaped elements 15.
  • the breaking means 12 are placed downstream of the compaction means 11 , relative to the direction of forward movement of the first compacted slab Ll.
  • the supporting surface 3 is adapted to be moved along the second direction D2 following the compaction of the first slab Ll; therefore the first slab Ll moves along the first direction Dl to displace towards the compaction means 11 and, once the compaction is completed, it is moved along the second direction D2, thus reversing the motion thereof.
  • the breaking means 12 are therefore located downstream of the compaction means 11, relative to the second direction D2.
  • first slab Ll may only move along the first direction Dl, in which case the breaking means 12 are arranged downstream of the compaction means 11 relative to the first direction Dl.
  • the breaking means 12 are of the mechanical type and comprise at least a substantially cylindrical first element 13 with one or more protrusions 14 adapted to contact the upper surface 10.
  • the protrusions 14 contact the upper surface 10 and exert a pressure thereon so as to determine the breaking lines of the same so as to obtain a plurality of flake- shaped elements 15.
  • the flake-shaped elements 15 are substantially portions of the first compacted slab Ll having irregular outer edges and variable conformation relative to each other.
  • the flake-shaped elements 15 comprise a lower surface allocated directly onto the supporting surface 3 and an upper surface opposed to the lower surface.
  • the equipment 1 comprises spacing means 16 of the flake-shaped elements 15 so as to define a plurality of interstices 17.
  • the spacing means 16 are located downstream of the breaking means 12 relative to the direction of forward movement of the first compacted slab Ll.
  • the first compacted slab Ll moves along the first direction Dl to displace towards the compaction means 11 and, once compaction is completed, it is moved along the second direction D2, thus reversing the motion thereof.
  • the spacing means 16 are located downstream of the breaking means 12, relative to the second direction D2. It cannot however be ruled out that the first slab Ll may only move along the first direction Dl, in which case the spacing means 16 are arranged downstream of the breaking means 12 relative to the first direction Dl.
  • the spacing means 16 comprise at least a substantially cylindrical second element 18 which is adapted to contact the upper surface of the flake- shaped elements 15.
  • the second element 18 is adapted to exert a thrust on the flake- shaped elements 15, substantially parallel to the supporting surface 3, so as to space these from each other and define the interstices 17 between them.
  • the equipment 1 comprises second dispensing means 19 of at least one ceramic and/or stone filling material 20 in powder and/or granulate and/or flake form on the flake-shaped elements 15, to obtain a second slab L2.
  • the second dispensing means 19 are positioned downstream of the spacing means 16 relative to the direction of forward movement of the second slab L2.
  • the second slab L2 moves along the second direction D2 to displace towards the second dispensing means 19 and therefore the second dispensing means 19 are arranged downstream of the spacing means 16 according to the second direction D2.
  • the second slab L2 may move along the first direction Dl to displace towards the second dispensing means 19 and therefore the second dispensing means 19 are downstream of the spacing means 16 according to the first direction Dl.
  • the first dispensing means 4 and the second dispensing means 19 coincide with each other and differ only in the type of material they dispense.
  • the second slab L2 may move along the first direction Dl to displace towards the second dispensing means 19, which in this case do not coincide with the first dispensing means 4.
  • the second dispensing means 19 are adapted to distribute the filling material 20 inside the interstices 17 and above the upper surfaces of the flake- shaped elements 15, so as to obtain the second slab L2.
  • the filling material 20 is of a different type from the basic material 5 and is adapted to create an agglomeration with the flake- shaped elements 15.
  • the equipment 1 comprises pressing means 21 for pressing the second slab L2, placed downstream of the second dispensing means 19 according to the direction of movement of the slab L2.
  • the second slab L2 moves along the first direction Dl to displace towards the pressing means 21, since the supporting surface 3 is adapted to be moved according to the first direction Dl following the dispensing of the filling material 20.
  • the pressing means 21 coincide with the compaction means 11, differing only in the extent of pressing force that is exerted on the first slab Ll and on the second slab L2.
  • the pressing force exerted by the pressing means 21 on the second slab L2 is igger than the pressing force exerted by the compacting means on the first slab Ll.
  • the process for the manufacture of slabs of ceramic and/or stone material comprises, first of all, the supply of at least one ceramic and/or stone basic material 5 in the form of powder and/or granulate and/or flakes and the introduction thereof into the first dispensing means 4.
  • the basic material 5 is introduced into the hopper 6 through the inlet port 8.
  • the basic material 5 contained in the hopper 6 is dispensed onto the supporting surface 3, to obtain the first slab Ll.
  • the basic material 5 is dispensed by the hopper 6 and deposited on the supporting surface 3 during its forward movement along the first direction Dl.
  • the first slab Ll is moved according to the first direction Dl until it reaches the compaction means 11.
  • the first compacted slab Ll is broken to obtain the flake-shaped elements 15.
  • the first compacted slab Ll is divided into a plurality of flake-shaped elements 15 by the breaking means 12, located downstream of the compaction means 11, relative to the direction of forward movement of the first compacted slab Ll.
  • the flake- shaped elements 15 are then spaced apart, so as to define the interstices 17 between these.
  • This phase is carried out by means of the spacing means 16, located downstream of the breaking means 12.
  • the process for the manufacture of slabs of ceramic and/or stone material requires the supply of at least one ceramic filling material 20 and the dispensing thereof above the flake- shaped elements 15 in order to obtain a second slab L2.
  • This phase is carried out by means of the second dispensing means 19, located downstream of the spacing means 16 along the direction of forward movement of the second slab L2.
  • a pressing phase of the second slab L2 is then performed, the surface of which resting on the supporting surface 3 defines the exposed surface 22 and the external surface of which defines the laying surface 23.
  • the lower surfaces of the flake- shaped elements 15 are adapted to contact the supporting surface 3 and are therefore not covered by the filling material 20; therefore the exposed surface 22 comprises the lower surfaces of the flake- shaped elements 15 and the external portion of the filling material 20 which is distributed internally to the interstices 17.
  • the pressing phase is carried out using the pressing means 21 located downstream of the second dispensing means 19 along the first direction Dl .
  • the described invention achieves the intended objects and, in particular, it is underlined that the process and the equipment to which the present invention relates allow obtaining a slab made of ceramic and/or stone material characterized by a plurality of scales that face on the exposed surface of the slab obtained, the dimensions of which are not related to the size of the material used.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

La présente invention concerne un procédé de fabrication de dalles en matériau céramique, comprenant les étapes suivantes : l'alimentation d'au moins un matériau de base (5) en céramique et/ou en pierre sous forme de poudre et/ou de granulés et/ou de flocons ; l'alimentation d'au moins un matériau de remplissage (20) en céramique et/ou en pierre sous forme de poudre et/ou de granulés et/ou de flocons ; la distribution du matériau de base (5) sur une surface de support (3) pour obtenir une première dalle (L1) ; le compactage de la première dalle (L1) ; le concassage de ladite première dalle (L1) compactée afin d'obtenir une pluralité d'éléments en forme de flocons (15) ; la distribution du matériau de remplissage (20) pour recouvrir les éléments en forme de flocons (15) afin d'obtenir une seconde dalle (L2) ; la compression de la seconde dalle (L2), la dernière présentant une surface découverte (22) disposée au repos sur la surface de support (3), et sur laquelle font face les éléments en forme de flocons (15), et une couche de pose (23) opposée à la surface découverte (22). Le procédé de fabrication de dalles en matériau céramique, comprend les étapes suivantes : l'alimentation d'au moins un matériau de base (5) en céramique et/ou en pierre sous forme de poudre et/ou de granulés et/ou de flocons ; l'alimentation d'au moins un matériau de remplissage (20) en céramique et/ou en pierre sous forme de poudre et/ou de granulés et/ou de flocons ; la distribution du matériau de base (5) sur une surface de support (3) pour obtenir une première dalle (L1) ; le compactage de la première dalle (L1) ; le concassage de ladite première dalle (L1) compactée afin d'obtenir une pluralité d'éléments en forme de flocons (15) ; la distribution du matériau de remplissage (20) pour recouvrir les éléments en forme de flocons (15) afin d'obtenir une seconde dalle (L2) ; la compression de la seconde dalle (L2), la dernière ayant une surface découverte (22) disposée au repos sur la surface de support (3), et sur laquelle font face les éléments en forme de flocons (15), et une couche de pose (23) opposée à la surface découverte (22).
PCT/IB2019/058067 2018-09-24 2019-09-24 Procédé et équipement de fabrication de dalles en céramique et/ou de matériau en pierre Ceased WO2020065509A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT201800008882 2018-09-24
IT102018000008882 2018-09-24

Publications (1)

Publication Number Publication Date
WO2020065509A1 true WO2020065509A1 (fr) 2020-04-02

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ID=64607159

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2019/058067 Ceased WO2020065509A1 (fr) 2018-09-24 2019-09-24 Procédé et équipement de fabrication de dalles en céramique et/ou de matériau en pierre

Country Status (1)

Country Link
WO (1) WO2020065509A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH524484A (de) * 1971-06-04 1972-06-30 Fehr Hans In eine Verpackung zusammengefasster Satz von farbigen Hartkunststoffplatten für Mosaik-Bastelarbeiten
WO2005002878A2 (fr) * 2003-07-04 2005-01-13 Marico Mulders Holding B.V. Systeme pour faire une mosaique
ITMO20080299A1 (it) * 2008-11-21 2010-05-22 Coem S P A Procedimento per la fabbricazione di manufatti ceramici sostanzialmente piastriformi

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH524484A (de) * 1971-06-04 1972-06-30 Fehr Hans In eine Verpackung zusammengefasster Satz von farbigen Hartkunststoffplatten für Mosaik-Bastelarbeiten
WO2005002878A2 (fr) * 2003-07-04 2005-01-13 Marico Mulders Holding B.V. Systeme pour faire une mosaique
ITMO20080299A1 (it) * 2008-11-21 2010-05-22 Coem S P A Procedimento per la fabbricazione di manufatti ceramici sostanzialmente piastriformi

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