EP1170104A2 - Manufacturing of powdered material - Google Patents

Manufacturing of powdered material Download PDF

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Publication number
EP1170104A2
EP1170104A2 EP01119709A EP01119709A EP1170104A2 EP 1170104 A2 EP1170104 A2 EP 1170104A2 EP 01119709 A EP01119709 A EP 01119709A EP 01119709 A EP01119709 A EP 01119709A EP 1170104 A2 EP1170104 A2 EP 1170104A2
Authority
EP
European Patent Office
Prior art keywords
distributing
hollow
powders
conveyor
closing
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
EP01119709A
Other languages
German (de)
French (fr)
Other versions
EP1170104B1 (en
EP1170104A3 (en
Inventor
Carlo Antonio Camorani
Maris Algeri
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.)
System SpA
Original Assignee
System SpA
Ronflette SA
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
Priority claimed from IT97MO000005 external-priority patent/IT1292654B1/en
Priority claimed from IT97MO000004 external-priority patent/IT1292653B1/en
Application filed by System SpA, Ronflette SA filed Critical System SpA
Publication of EP1170104A2 publication Critical patent/EP1170104A2/en
Publication of EP1170104A3 publication Critical patent/EP1170104A3/en
Application granted granted Critical
Publication of EP1170104B1 publication Critical patent/EP1170104B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B5/00—Presses characterised by the use of pressing means other than those mentioned in the preceding groups
    • B30B5/04—Presses characterised by the use of pressing means other than those mentioned in the preceding groups wherein the pressing means is in the form of an endless band
    • 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
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/008—Producing shaped prefabricated articles from the material made from two or more materials having different characteristics or properties
    • 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
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/10—Producing shaped prefabricated articles from the material by vibrating or jolting and applying pressure otherwise than by the use of presses
    • 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
    • B28B1/14—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted
    • B28B1/16—Producing shaped prefabricated articles from the material by simple casting, the material being neither forcibly fed nor positively compacted for producing layered 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/14—Apparatus or processes for treating or working the shaped or preshaped articles for dividing shaped articles by cutting
    • 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
    • B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
    • B28B13/0205—Feeding the unshaped material to moulds or apparatus for producing shaped articles supplied to the moulding device in form of a coherent mass of material, e.g. a lump or an already partially preshaped tablet, pastil 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
    • 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
    • B28B13/0215—Feeding the moulding material in measured quantities from a container or silo
    • B28B13/027—Feeding the moulding material in measured quantities from a container or silo by using a removable belt or conveyor transferring the moulding material to the moulding cavities
    • 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
    • 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
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • 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
    • B28B3/003—Pressing by means acting upon the material via flexible mould wall parts, e.g. by means of inflatable cores, isostatic presses
    • 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
    • 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
    • B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
    • B28B3/123—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material on material in moulds or on moulding surfaces moving continuously underneath or between the rollers, e.g. on an endless belt
    • 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
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in, or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type

Definitions

  • the present invention relates to a system for manufacturing powder material, in particular for the production of ceramic tiles.
  • PCT/EP95/04560 discloses a system for pressing ceramic tiles, wherein a continuous strip of powders having a predetermined thickness and width is formed, predetermined areas of said strip being compacted to obtain tiles, or pre-compacted semi-manufactured products which are precursors of the tiles to be formed. In the latter case there is provided pressing semi-manufactured products in a die to obtain corresponding tiles ready to be subsequently dried and fired.
  • US-A-3,540,093 describes an apparatus for manufacturing ceramic tiles, having substantially uniform compactness, homogeneity, density and thickness, wherein from a bottom end of a hopper, in which powders of ceramic material are contained, a vertical strip of compacted powders is formed by action of opposed pressing rolls, from said strip some pre-compacted products being subsequently severed by cutting and distributed on a horizontal conveyor from which the severed products are transferred to a die to obtain tile bodies.
  • GB-A-880,892 describes an apparatus for forming clay material in which a mass of clay, humidified in such a way as to result at a plastic state, is laminated between a pair of rolls to obtain a layer of plastic material and subsequently the layer is formed by a forming die, without substantial alteration of the volume, in such a way as to obtain a plurality of tiles interconnected by webs which are subsequently cut by rotating disks.
  • Prior art comprises also some apparatuses for making tiles in which powders are distributed in two superimposed layers during distinct strokes of a distributing trolley or distinct phases of the same stroke of a distributing trolley, the trolley being generally provided with grids and each one leading the powders of a determined layer to the matrix of the press.
  • An example of such a kind of apparatuses is described in IT-A-1,069,458.
  • An object of the present invention is to improve the existent apparatuses for working ceramic tiles.
  • distributing means for distributing powdered product to decorate ceramic tiles comprising conveyor means provided with hollow means which is open outwardly to contain parts of said product and closing means for closing said hollow means arranged to prevent said parts from exiting out of said hollow means along a predetermined portion of said conveyor means.
  • Figure 1 shows an apparatus for forming, on belt conveyor means 3, a layer of powders composed of base powders 6 and decorating powders 8.
  • the powders 6 are contained in hopper distributing means 200 provided, along a wall area 202a, with an inlet 201 into which powders 8 are poured, said powders 8 having been distributed on distributing belt means 213 forming a predetermined design, as will be better explained below.
  • the powders 8 are progressively poured into the inlet 201 where a deflector 203 of the hopper distributing means 200 incorporates them into the powders 6.
  • the speed of the belt conveyor means 3 is substantially equal to the speed of the distributing belt means 213 the design is reproduced on the base powders 6 substantially corresponding to the one which has been defined on the distributing belt means 213.
  • the hopper distributing means 200 is provided with a section 204 for discharging on the belt conveyor means 3 with section which is substantially uniform.
  • Figure 2 shows an apparatus for distributing powders on belt conveyor means 3 wherein the hopper distributing means 200 has a shape comprising a section converging downward and an outlet section 205 which pours the powders 6 into collecting means 206 defined by an end 207 of the distributing belt means 213 and by wall means 208 which defines together a conduit 209 wherein powders 6, 8 flow towards the belt conveyor means 3.
  • the conduit 209 has a section with constant width to prevent the powders from being altered when passing therethrough.
  • the distributing belt means 213 may have recesses, or cavities, 210 arranged to contain decorating powders 8a.
  • the powders 8, 8a are poured into the conduit 209 and amalgamated on a side of the powders 6, in such a way as to result incorporated into, or resting on, said powders when the latter are poured on the belt conveyor means 3.
  • the disposition of the belt means 3 and 213 is such that the powders 8, due to gravity, tend to detach from the cavities 210. However, if a tendency to adherence of the powders 8, 8a to the belt means 213 would occur, there may be provided, near to the initial portion of the return part of the belt means 213, detaching means 211, formed for example by a vibrating body, which shakes the belt means 213 and support the detaching of the powders 8, 8a therefrom.
  • Figures 3 to 5 show embodiments of rotating distributing means 212 arranged to pour powders 8 on a support S, which may comprise indifferently, depending on the cases, belt conveyor means 3, ceramic supports, one or more layers of powders 6, 8 to be pressed.
  • scraping means 169 is provided suitable for scraping excesses of said powders 8 from the surface of the rotating distributing means 212.
  • the rotating distributing means 212 may be formed by distributing belt means 213, or by a cylindrical distributing body 214, and is preferably provided with recesses 215 arranged to contain the powders 8 and such as to define a predetermined design.
  • the powders 8 are distributed into the recesses 215 by hopper means 163 which pours said powders on an upper portion of the distributing means which moves underneath its outlet opening.
  • the powders are maintained inside the recesses 215 by containing means 216 which covers the portion of distributing means which changes, during motion, its position bringing the recesses 215 from the initial position wherein they face upwardly, to the discharging position wherein they face downward.
  • the containing means 216 may be formed by wall means 217, having for example the shape of a shell, which covers an end 218 of the belt means 213, or, as shown in Figures 4, 5, by a flexible means, as belt means 218a rolled up on return means 219 in such a way as to have a part 220 which covers the portion of distributing means 212 which inverts its position with respect to a horizontal plane.
  • detaching means 211 for detaching powders which may also act as an element whereon the containing belt means 218a is rolled up.
  • the conduit 209a may have a section having a width decreasing in the direction of advance of the powders along the conduit 209a in such a way that, when exiting from the conduit, the powders are already pressed in a compact layer 14a, which may be conveyed by belt conveyor means 15b, for example to feed a press, not shown.
  • the conduit 209a is defined between an end of belt distributing means 213 for distributing powders 8 and an active part 208a of a pressing belt 3c rolled on respective rolls 12b and 309a.
  • the rolling roll 309a is supported near to the outlet opening of the hopper means 200, whereto also the powders 8 of the conveyor belt 213 flow.
  • the powders 6, 8 which descend along the conduit 209a, are progressively pressed as a consequence of the decreasing of the section of the conduit 209a and are pressed at the exit from the conduit 209a between the roll 12b and the roll 13b whereon an end of the conveyor belt 213 defining a portion of the conduit 209a is rolled.
  • Figures 7, 8 show that the powders 6, 8 are pressed with a punch 55 while they are contained by the exceed of the powders 71. Thus, only a central portion of the powders results pressed in a homogeneous manner to obtain the product 14, while the non-pressed powders 72 are circulated again.
  • Each product 14 is subsequently transferred at a conveyor line 73 whereon a frame punch 74 is descended, said frame punch 74 cutting, from the product, the external portion of rejection 72a, so obtaining pressed and homogeneous products 14a.

Abstract

Distributing means for distributing powdered product (6, 8, 8a) to decorate ceramic tiles comprises conveyor means (212, 213, 214) provided with hollow means (210, 215) which is open outwardly to contain parts of said product (6, 8, 8a) and closing means (3c, 6, 208, 208a, 217, 218a, 220) for closing said hollow means (210, 215) arranged to prevent said parts from exiting out of said hollow means (210, 215) along a predetermined portion of said conveyor means (212, 213, 214).

Description

  • The present invention relates to a system for manufacturing powder material, in particular for the production of ceramic tiles.
  • PCT/EP95/04560 discloses a system for pressing ceramic tiles, wherein a continuous strip of powders having a predetermined thickness and width is formed, predetermined areas of said strip being compacted to obtain tiles, or pre-compacted semi-manufactured products which are precursors of the tiles to be formed. In the latter case there is provided pressing semi-manufactured products in a die to obtain corresponding tiles ready to be subsequently dried and fired.
  • US-A-3,540,093 describes an apparatus for manufacturing ceramic tiles, having substantially uniform compactness, homogeneity, density and thickness, wherein from a bottom end of a hopper, in which powders of ceramic material are contained, a vertical strip of compacted powders is formed by action of opposed pressing rolls, from said strip some pre-compacted products being subsequently severed by cutting and distributed on a horizontal conveyor from which the severed products are transferred to a die to obtain tile bodies.
  • GB-A-880,892 describes an apparatus for forming clay material in which a mass of clay, humidified in such a way as to result at a plastic state, is laminated between a pair of rolls to obtain a layer of plastic material and subsequently the layer is formed by a forming die, without substantial alteration of the volume, in such a way as to obtain a plurality of tiles interconnected by webs which are subsequently cut by rotating disks.
  • Prior art comprises also some apparatuses for making tiles in which powders are distributed in two superimposed layers during distinct strokes of a distributing trolley or distinct phases of the same stroke of a distributing trolley, the trolley being generally provided with grids and each one leading the powders of a determined layer to the matrix of the press. An example of such a kind of apparatuses is described in IT-A-1,069,458.
  • Moreover, in such apparatuses there is a productivity much lower than the productivity obtainable loading in just one layer, since providing distinct strokes for each trolley, or distinct phases of the stroke of loading, is time consuming, since the various layers are loaded into a matrix of a respective die in different steps and in a certain interval of time.
  • An object of the present invention is to improve the existent apparatuses for working ceramic tiles.
  • According to the present invention, there is provided distributing means for distributing powdered product to decorate ceramic tiles comprising conveyor means provided with hollow means which is open outwardly to contain parts of said product and closing means for closing said hollow means arranged to prevent said parts from exiting out of said hollow means along a predetermined portion of said conveyor means.
  • This allows to decorate ceramic tiles by distributing thereon a decorating product which is dropped on the respective front side, or to decorate a layer of non-pressed powders, or to prepare dosed quantities of product to pour on a layer of non-pressed powders.
  • The invention will be better understood and carried into effect referring to the attached drawings, wherein:
  • Figure 1 is a schematic, partially sectioned, interrupted side view of an apparatus for distributing ceramic powders on belt conveyor means;
  • Figure 2 is a schematic, partially sectioned side view of belt means for distributing powders of decorating material for ceramic tiles;
  • Figure 3 is a view as in Figure 2 in a modified embodiment;
  • Figure 4 is a view as in Figure 3 in a further version;
  • Figure 5 is a partially sectioned schematic view of an embodiment wherein roll means substitutes the belt conveyor means.
  • Figure 6 is a longitudinal, schematic section of an embodiment of a pressing apparatus with belt conveyor means;
  • Figure 7 is a schematic side view, partially sectioned, of a pressing apparatus for pressing powders on belt conveyor means, in a phase of pressing;
  • Figure 8 is a plan view of Figure 7.
  • In the context of the following description, with the reference V is indicated the longitudinal direction of advance of loose or compacted powders on belt conveyor means. With the term "powders", each movable material at the solid state, including granular materials, ceramic glazes and clay compounds is indicated.
  • Figure 1 shows an apparatus for forming, on belt conveyor means 3, a layer of powders composed of base powders 6 and decorating powders 8. The powders 6 are contained in hopper distributing means 200 provided, along a wall area 202a, with an inlet 201 into which powders 8 are poured, said powders 8 having been distributed on distributing belt means 213 forming a predetermined design, as will be better explained below.
  • When the belt means 3 and 213 is advanced along the respective advancing directions V and V1, the powders 8 are progressively poured into the inlet 201 where a deflector 203 of the hopper distributing means 200 incorporates them into the powders 6. When the speed of the belt conveyor means 3 is substantially equal to the speed of the distributing belt means 213 the design is reproduced on the base powders 6 substantially corresponding to the one which has been defined on the distributing belt means 213.
  • To avoid alterations of the conformation of the layer 6, 8 before the respective powders are left on the belt conveyor means 3, it is suitable that the hopper distributing means 200 is provided with a section 204 for discharging on the belt conveyor means 3 with section which is substantially uniform.
  • Figure 2 shows an apparatus for distributing powders on belt conveyor means 3 wherein the hopper distributing means 200 has a shape comprising a section converging downward and an outlet section 205 which pours the powders 6 into collecting means 206 defined by an end 207 of the distributing belt means 213 and by wall means 208 which defines together a conduit 209 wherein powders 6, 8 flow towards the belt conveyor means 3.
  • Preferably, the conduit 209 has a section with constant width to prevent the powders from being altered when passing therethrough.
  • The distributing belt means 213 may have recesses, or cavities, 210 arranged to contain decorating powders 8a.
  • When the belt means 3, 213 is driven, the powders 8, 8a are poured into the conduit 209 and amalgamated on a side of the powders 6, in such a way as to result incorporated into, or resting on, said powders when the latter are poured on the belt conveyor means 3.
  • The disposition of the belt means 3 and 213 is such that the powders 8, due to gravity, tend to detach from the cavities 210. However, if a tendency to adherence of the powders 8, 8a to the belt means 213 would occur, there may be provided, near to the initial portion of the return part of the belt means 213, detaching means 211, formed for example by a vibrating body, which shakes the belt means 213 and support the detaching of the powders 8, 8a therefrom.
  • Figures 3 to 5 show embodiments of rotating distributing means 212 arranged to pour powders 8 on a support S, which may comprise indifferently, depending on the cases, belt conveyor means 3, ceramic supports, one or more layers of powders 6, 8 to be pressed.
  • Furthermore, scraping means 169 is provided suitable for scraping excesses of said powders 8 from the surface of the rotating distributing means 212.
  • The rotating distributing means 212 may be formed by distributing belt means 213, or by a cylindrical distributing body 214, and is preferably provided with recesses 215 arranged to contain the powders 8 and such as to define a predetermined design.
  • The powders 8 are distributed into the recesses 215 by hopper means 163 which pours said powders on an upper portion of the distributing means which moves underneath its outlet opening. The powders are maintained inside the recesses 215 by containing means 216 which covers the portion of distributing means which changes, during motion, its position bringing the recesses 215 from the initial position wherein they face upwardly, to the discharging position wherein they face downward. The containing means 216 may be formed by wall means 217, having for example the shape of a shell, which covers an end 218 of the belt means 213, or, as shown in Figures 4, 5, by a flexible means, as belt means 218a rolled up on return means 219 in such a way as to have a part 220 which covers the portion of distributing means 212 which inverts its position with respect to a horizontal plane.
  • There may be provided detaching means 211 for detaching powders which may also act as an element whereon the containing belt means 218a is rolled up.
  • As shown in Figure 6, the conduit 209a may have a section having a width decreasing in the direction of advance of the powders along the conduit 209a in such a way that, when exiting from the conduit, the powders are already pressed in a compact layer 14a, which may be conveyed by belt conveyor means 15b, for example to feed a press, not shown.
  • The conduit 209a is defined between an end of belt distributing means 213 for distributing powders 8 and an active part 208a of a pressing belt 3c rolled on respective rolls 12b and 309a. The rolling roll 309a is supported near to the outlet opening of the hopper means 200, whereto also the powders 8 of the conveyor belt 213 flow.
  • The powders 6, 8 which descend along the conduit 209a, are progressively pressed as a consequence of the decreasing of the section of the conduit 209a and are pressed at the exit from the conduit 209a between the roll 12b and the roll 13b whereon an end of the conveyor belt 213 defining a portion of the conduit 209a is rolled.
  • Figures 7, 8 show that the powders 6, 8 are pressed with a punch 55 while they are contained by the exceed of the powders 71. Thus, only a central portion of the powders results pressed in a homogeneous manner to obtain the product 14, while the non-pressed powders 72 are circulated again. Each product 14 is subsequently transferred at a conveyor line 73 whereon a frame punch 74 is descended, said frame punch 74 cutting, from the product, the external portion of rejection 72a, so obtaining pressed and homogeneous products 14a.

Claims (17)

  1. Distributing means for distributing powdered product (6, 8, 8a) to decorate ceramic tiles, comprising conveyor means (212, 213, 214) provided with hollow means (210, 215) which is open outwardly to contain parts of said product (6, 8, 8a) and closing means (3c, 6, 208, 208a, 217, 218a, 220) for closing said hollow means (210, 215) arranged to prevent said parts from exiting out of said hollow means (210, 215) along a predetermined portion of said conveyor means (212, 213, 214).
  2. Distributing means according to claim 1, and further comprising a support surface (S, 3, 15b) onto which said powders are distributed.
  3. Distributing means according to claim 1 or 2, wherein said closing means (3c, 6, 208, 208a, 217, 218a, 220) comprises wall means (217).
  4. Distributing means according to claim 1, or 2, wherein said closing means (3c, 6, 208, 208a, 217, 218a, 220) comprises belt means (3c, 208a, 218a, 220).
  5. Distributing means according to claim 3, wherein said closing means (3c, 6, 208, 208a, 217, 218a, 220) comprises powders (6) interposed between said wall means (208, 217) and openings of said hollow means (210, 215).
  6. Distributing means according to claim 4, wherein said closing means (3c, 6, 208, 208a, 217, 218a, 220) comprises powders (6) interposed between said belt means (3c, 208a, 218a, 220) and openings of said hollow means (210, 215).
  7. Distributing means according to claim 6, wherein a conduit (209a) is defined between said belt means (3c, 208a, 218a, 220) and openings of said hollow means (210, 215), said conduit (209a) having a section progressively decreasing along a direction of advance of the powder material contained therein.
  8. Distributing means according to any one of the preceding claims, wherein said conveyor means (212, 213, 214) comprises belt conveyor means (213).
  9. Distributing means according to any claim 1 to 7, wherein said conveyor means (212, 213, 214) comprises a cylindrical body (214).
  10. Distributing means according to any one of the preceding claims, wherein said conveyor means (212, 213, 214) cooperates with scraping means (169) for scraping said powdered products (6, 8, 8a).
  11. Distributing means according to any one of the preceding claims, wherein said conveyor means (212, 213, 214) cooperates with detaching means (211) suitable for detaching said powdered product (6, 8, 8a).
  12. Distributing means according to claim 11, wherein said detaching means (211) comprises vibrating means (211).
  13. Distributing means according to claim 12, wherein said vibrating means (211) operates in contact with said conveyor means (212, 213, 214) at a surface opposed to the surface where openings of said hollow means (210, 215) is provided.
  14. Distributing means according to claim 2, or to one of claims 3 to 13 as appended to claim 2, wherein said closing means (3c, 6, 208, 208a, 217, 218a, 220) is kept substantially in contact with said conveyor means (212, 213, 214) and extends from an upper position in which said hollow means (210, 215) is oriented upwardly to a lower position in which said hollow means (210, 215) is oriented downwardly at a location close to the support surface (S, 3, 15b).
  15. Distributing means according to claim 2, or to one of claims 3 to 14 as appended to claim 2, wherein said support surface (S, 3, 15b) forms part of a pressing base for pressing said powdered product (6, 8, 8a).
  16. Distributing means according to claim 15, wherein said support surface (S, 3, 15b) forms part of endless belt conveyor means.
  17. Distributing means according claim 2, or to one of claims 3 to 16 as appended to claim 2, wherein said hollow means (210, 215) is provided in the surface of said conveyor means (212, 213, 214) and are so wide and deep as to define a pattern formed by said powered product (6, 8, 8a) on said support surface (S, 3, 15b).
EP01119709A 1996-11-22 1997-10-17 Distributing means for distributing powder material Expired - Lifetime EP1170104B1 (en)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
ITMO960151 1996-11-22
IT96MO000151 IT1287505B1 (en) 1996-11-22 1996-11-22 Continuous pressing method and plant for production of tiles - involves controlled discharge of contained layer of powder on conveyor belt that advances through pre-pressing rollers to mould and pressing punch
ITMO970004 1997-01-16
IT97MO000005 IT1292654B1 (en) 1997-01-16 1997-01-16 Continuous pressing method and plant for production of tiles - involves controlled discharge of contained layer of powder on conveyor belt that advances through pre-pressing rollers to mould and pressing punch
IT97MO000004 IT1292653B1 (en) 1997-01-16 1997-01-16 Continuous pressing method and plant for production of tiles - involves controlled discharge of contained layer of powder on conveyor belt that advances through pre-pressing rollers to mould and pressing punch
ITMO970005 1997-01-16
EP97945854A EP0939691A2 (en) 1996-11-22 1997-10-17 Manufacturing of powdered material

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97945854A Division EP0939691A2 (en) 1996-11-22 1997-10-17 Manufacturing of powdered material

Publications (3)

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EP1170104A2 true EP1170104A2 (en) 2002-01-09
EP1170104A3 EP1170104A3 (en) 2002-05-15
EP1170104B1 EP1170104B1 (en) 2006-07-19

Family

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EP01119708A Expired - Lifetime EP1175982B1 (en) 1996-11-22 1997-10-17 Method for pressing powder material
EP02023590A Expired - Lifetime EP1283097B1 (en) 1996-11-22 1997-10-17 Method for pressing powdered material
EP97945854A Withdrawn EP0939691A2 (en) 1996-11-22 1997-10-17 Manufacturing of powdered material
EP01119710A Expired - Lifetime EP1170105B1 (en) 1996-11-22 1997-10-17 Manufacturing of powdered material
EP01119709A Expired - Lifetime EP1170104B1 (en) 1996-11-22 1997-10-17 Distributing means for distributing powder material

Family Applications Before (4)

Application Number Title Priority Date Filing Date
EP01119708A Expired - Lifetime EP1175982B1 (en) 1996-11-22 1997-10-17 Method for pressing powder material
EP02023590A Expired - Lifetime EP1283097B1 (en) 1996-11-22 1997-10-17 Method for pressing powdered material
EP97945854A Withdrawn EP0939691A2 (en) 1996-11-22 1997-10-17 Manufacturing of powdered material
EP01119710A Expired - Lifetime EP1170105B1 (en) 1996-11-22 1997-10-17 Manufacturing of powdered material

Country Status (7)

Country Link
EP (5) EP1175982B1 (en)
AU (1) AU5120198A (en)
DE (4) DE69738916D1 (en)
ES (4) ES2269584T3 (en)
IT (1) IT1287505B1 (en)
PT (2) PT1283097E (en)
WO (1) WO1998023424A2 (en)

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EP1419863A2 (en) * 2003-01-24 2004-05-19 T.S.C. S.p.A. Equipment for applying powdery products on items for decorating the same
EP1454727A2 (en) * 2003-03-04 2004-09-08 T.S.C. S.p.A. Device for application of powdery and/or granular products onto corresponding articles, in particular ceramic tiles, for decoration thereof
WO2005025828A1 (en) * 2003-09-17 2005-03-24 Mira Di Algeri Maris Method and apparatus for decorating
WO2006045728A1 (en) 2004-10-20 2006-05-04 Luca Toncelli Apparatus for distributing in a thin layer a mix based on agglomerate stone or ceramic material
CN1332796C (en) * 2002-04-24 2007-08-22 萨克米-伊莫拉机械合作社-股份有限合作公司 Method and equipment for producing vitrolite or ceramic tile
US8337947B2 (en) 2006-02-21 2012-12-25 System S.P.A. Decorating with powder material
CN107398987A (en) * 2017-09-29 2017-11-28 江西斯米克陶瓷有限公司 A kind of apparatus for distributing and technique of imitative bag reason vitrified tile
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CN1332796C (en) * 2002-04-24 2007-08-22 萨克米-伊莫拉机械合作社-股份有限合作公司 Method and equipment for producing vitrolite or ceramic tile
EP1419863A3 (en) * 2003-01-24 2005-11-23 T.S.C. S.p.A. Equipment for applying powdery products on items for decorating the same
EP1419863A2 (en) * 2003-01-24 2004-05-19 T.S.C. S.p.A. Equipment for applying powdery products on items for decorating the same
EP1454727A3 (en) * 2003-03-04 2005-12-07 T.S.C. S.p.A. Device for application of powdery and/or granular products onto corresponding articles, in particular ceramic tiles, for decoration thereof
EP1454727A2 (en) * 2003-03-04 2004-09-08 T.S.C. S.p.A. Device for application of powdery and/or granular products onto corresponding articles, in particular ceramic tiles, for decoration thereof
WO2005025828A1 (en) * 2003-09-17 2005-03-24 Mira Di Algeri Maris Method and apparatus for decorating
WO2006045728A1 (en) 2004-10-20 2006-05-04 Luca Toncelli Apparatus for distributing in a thin layer a mix based on agglomerate stone or ceramic material
US7837454B2 (en) 2004-10-20 2010-11-23 Luca Toncelli Apparatus for distributing in a thin layer a mix based on agglomerate stone or ceramic material
KR101238523B1 (en) * 2004-10-20 2013-02-28 루카 톤셀리 Apparatus for distributing in a thin layer a mix based on agglomerate stone or ceramic material
US8337947B2 (en) 2006-02-21 2012-12-25 System S.P.A. Decorating with powder material
EP2687347A2 (en) 2006-02-21 2014-01-22 System Spa Decorating with powder material.
CN107398987A (en) * 2017-09-29 2017-11-28 江西斯米克陶瓷有限公司 A kind of apparatus for distributing and technique of imitative bag reason vitrified tile
IT202100024588A1 (en) * 2021-09-24 2023-03-24 Cooperativa Ceramica Dimola Soc Cooperativa In Breve Cooperativa Ceramica Dimola S C PROCEDURE AND PLANT FOR THE REALIZATION OF DECORATIVE ELEMENTS IN CERAMIC MATERIAL

Also Published As

Publication number Publication date
ES2311495T3 (en) 2009-02-16
EP1175982A3 (en) 2002-05-15
EP1283097B1 (en) 2006-08-09
ES2269584T3 (en) 2007-04-01
DE69736496D1 (en) 2006-09-21
EP1170105B1 (en) 2008-08-13
EP1170104B1 (en) 2006-07-19
EP1170105A3 (en) 2002-05-15
EP1175982B1 (en) 2008-03-19
EP1283097A3 (en) 2003-03-19
ITMO960151A1 (en) 1998-05-22
ES2301507T3 (en) 2008-07-01
AU5120198A (en) 1998-06-22
IT1287505B1 (en) 1998-08-06
ITMO960151A0 (en) 1996-11-22
DE69738589T2 (en) 2009-04-23
DE69738916D1 (en) 2008-09-25
WO1998023424A2 (en) 1998-06-04
ES2266061T3 (en) 2007-03-01
DE69736362D1 (en) 2006-08-31
DE69736362T2 (en) 2007-07-19
WO1998023424A3 (en) 1998-08-20
PT1170105E (en) 2008-11-03
EP0939691A2 (en) 1999-09-08
EP1283097A2 (en) 2003-02-12
PT1283097E (en) 2006-11-30
EP1170104A3 (en) 2002-05-15
EP1175982A2 (en) 2002-01-30
DE69738589D1 (en) 2008-04-30
EP1170105A2 (en) 2002-01-09

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