EP1175982A2 - Fabrication de matières pulvérentes - Google Patents

Fabrication de matières pulvérentes Download PDF

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Publication number
EP1175982A2
EP1175982A2 EP01119708A EP01119708A EP1175982A2 EP 1175982 A2 EP1175982 A2 EP 1175982A2 EP 01119708 A EP01119708 A EP 01119708A EP 01119708 A EP01119708 A EP 01119708A EP 1175982 A2 EP1175982 A2 EP 1175982A2
Authority
EP
European Patent Office
Prior art keywords
powders
pressing
tiles
distributing
advancing
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
EP01119708A
Other languages
German (de)
English (en)
Other versions
EP1175982B1 (fr
EP1175982A3 (fr
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
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/it
Priority claimed from IT97MO000004 external-priority patent/IT1292653B1/it
Application filed by Ronflette SA filed Critical Ronflette SA
Publication of EP1175982A2 publication Critical patent/EP1175982A2/fr
Publication of EP1175982A3 publication Critical patent/EP1175982A3/fr
Application granted granted Critical
Publication of EP1175982B1 publication Critical patent/EP1175982B1/fr
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 concerns a system for manufacturing powder material, in particular for the production of ceramic tiles.
  • PCT/EP95/04560 describes 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.
  • a method for pressing powder material to obtain tiles comprising the steps of:
  • an apparatus for pressing powdered material to form tiles comprising flexible conveyor means for receiving powders thereon from distributing means and for advancing said powders along an advancing direction through a pressing station, containing means for peripherally containing said powders on said conveyor means, pressing means for pressing said powders in said pressing station and pressing simultaneously on the powder material of the intended tiles, characterized in that said containing means is arranged to act on the powders to be pressed during said advancing and those containing means continues to act during said pressing and that said containing means comprises powders arranged in a zone peripherally exceeding the intended tiles.
  • powders 1 are contained in hopper distributing means 2 having an outlet section controlled by a dosing squegee 2a, which is adjustable in height and faces a horizontal upper part of belt conveyor means 3, advancing the powders to be pressed at a press with mould means 4 for ceramic tiles, in such a way as to form a strip 6, or main layer, of powders.
  • distributing decorating means 7 may be interposed to pour on the strip 6 a decorating layer 8, the decorating means possibly comprising further hopper means 9 containing a decorating granular material 10, having an outlet section facing the strip 6 and controlled by a rotating dosing roll 11.
  • Figures 3 and 4 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 to 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.
  • mould means 4 may be used.
  • Figures 5 and 6 show that the punch 55 may be provided with a cavity 75 to form the pressed products 14 preventing lateral leakages of powders during pressing.
  • Figure 7 shows that, to obtain the compaction of the layer 6, 8, it is possible to use compacting means 40 provided with orbital motion, or provided with a swinging, or vibrating motion, generally generating a circular action shown by arrows F4 and such as to compress the powders 6 and advance together with them along a portion of route of the belt conveyor means 3.
  • a movable controlling block 41 Underneath the belt conveyor means 3 there is a movable controlling block 41, whereon the belt conveyor means 3 rests, the block being free to move along the direction Y1 toward the mould means 4 when the compacting means 40 compresses the powders 6 and to return to the initial position, under the action of a return spring 42, when the compacting means 40 does not compress the powders 6.
  • the movable block 41 is set up on rolls 43 interposed between the block 41 and a base body 44.
  • the compacting action of the compacting means 40 may also be obtained by a suitable vibrating-generator device: therefore the action of the compacting means 40 on the powders 6 may take place in a vertical plane orthogonal to the belt conveyor means 3.
  • Figure 7 also shows a compacting belt 59a interposed between the powders 6 to be pressed and the compacting means 40, advantageously provided with transversal severing means 52b extending toward the belt conveyor means 3 to sever, from the top, the layer of powders 6 during pressing.
  • the compacting means 40 may be elastically coupled with supporting means through elastic harmonizing means 40a and may be also coupled with vibration generating means 40b.
  • the compacting means 40 may also be provided only with a reciprocating motion in a direction orthogonal to the belt conveyor means 3 and, in this case, the belt conveyor means 3 has to be driven with intermittent motion, i.e. step by step.

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Structural Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
EP01119708A 1996-11-22 1997-10-17 Procédé pour presser des matières pulvérulentes Expired - Lifetime EP1175982B1 (fr)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
ITMO960151 1996-11-22
IT96MO000151 IT1287505B1 (it) 1996-11-22 1996-11-22 Metodo e mezzi per la pressatura di piastrelle ceramiche.
IT97MO000005 IT1292654B1 (it) 1997-01-16 1997-01-16 Sistema per la formatura di piastrelle ceramiche.
IT97MO000004 IT1292653B1 (it) 1997-01-16 1997-01-16 Apparato e metodo per distribuire polveri ceramiche in piu' strati a rispettivi mezzi pressatori.
ITMO970005 1997-01-16
ITMO970004 1997-01-16
EP97945854A EP0939691A2 (fr) 1996-11-22 1997-10-17 Fabrication de matieres pulverulentes

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP97945854A Division EP0939691A2 (fr) 1996-11-22 1997-10-17 Fabrication de matieres pulverulentes

Publications (3)

Publication Number Publication Date
EP1175982A2 true EP1175982A2 (fr) 2002-01-30
EP1175982A3 EP1175982A3 (fr) 2002-05-15
EP1175982B1 EP1175982B1 (fr) 2008-03-19

Family

ID=27274124

Family Applications (5)

Application Number Title Priority Date Filing Date
EP01119709A Expired - Lifetime EP1170104B1 (fr) 1996-11-22 1997-10-17 Dispositif pour distribuer des matières pulvérulentes
EP97945854A Withdrawn EP0939691A2 (fr) 1996-11-22 1997-10-17 Fabrication de matieres pulverulentes
EP02023590A Expired - Lifetime EP1283097B1 (fr) 1996-11-22 1997-10-17 Procédé pour presser de matières pulvérentes
EP01119708A Expired - Lifetime EP1175982B1 (fr) 1996-11-22 1997-10-17 Procédé pour presser des matières pulvérulentes
EP01119710A Expired - Lifetime EP1170105B1 (fr) 1996-11-22 1997-10-17 Fabrication d'une matériau pulvérisé

Family Applications Before (3)

Application Number Title Priority Date Filing Date
EP01119709A Expired - Lifetime EP1170104B1 (fr) 1996-11-22 1997-10-17 Dispositif pour distribuer des matières pulvérulentes
EP97945854A Withdrawn EP0939691A2 (fr) 1996-11-22 1997-10-17 Fabrication de matieres pulverulentes
EP02023590A Expired - Lifetime EP1283097B1 (fr) 1996-11-22 1997-10-17 Procédé pour presser de matières pulvérentes

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP01119710A Expired - Lifetime EP1170105B1 (fr) 1996-11-22 1997-10-17 Fabrication d'une matériau pulvérisé

Country Status (7)

Country Link
EP (5) EP1170104B1 (fr)
AU (1) AU5120198A (fr)
DE (4) DE69738589T2 (fr)
ES (4) ES2266061T3 (fr)
IT (1) IT1287505B1 (fr)
PT (2) PT1283097E (fr)
WO (1) WO1998023424A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2896309A1 (es) * 2021-11-24 2022-02-24 Kerajet S A Prensa laminadora de polvos ceramicos con rodillo intercambiable y metodo de intercambio de rodillo de una prensa laminadora

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* Cited by examiner, † Cited by third party
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WO1998023424A3 (fr) 1998-08-20
DE69738589T2 (de) 2009-04-23
EP1170105A2 (fr) 2002-01-09
EP1175982B1 (fr) 2008-03-19
WO1998023424A2 (fr) 1998-06-04
EP1170104A2 (fr) 2002-01-09
EP1175982A3 (fr) 2002-05-15
PT1170105E (pt) 2008-11-03
EP0939691A2 (fr) 1999-09-08
EP1170104A3 (fr) 2002-05-15
EP1170105A3 (en) 2002-05-15
ES2266061T3 (es) 2007-03-01
IT1287505B1 (it) 1998-08-06
ITMO960151A1 (it) 1998-05-22
EP1170105B1 (fr) 2008-08-13
EP1283097A2 (fr) 2003-02-12
AU5120198A (en) 1998-06-22
DE69738916D1 (de) 2008-09-25
DE69736362T2 (de) 2007-07-19
DE69736362D1 (de) 2006-08-31
ES2311495T3 (es) 2009-02-16
DE69738589D1 (de) 2008-04-30
EP1283097A3 (fr) 2003-03-19
ITMO960151A0 (it) 1996-11-22
DE69736496D1 (de) 2006-09-21
EP1170104B1 (fr) 2006-07-19
PT1283097E (pt) 2006-11-30
EP1283097B1 (fr) 2006-08-09
ES2301507T3 (es) 2008-07-01
ES2269584T3 (es) 2007-04-01

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