EP1356909A2 - Procédé et installation pour la fabrication de carreaux ou dalles en céramique - Google Patents

Procédé et installation pour la fabrication de carreaux ou dalles en céramique Download PDF

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Publication number
EP1356909A2
EP1356909A2 EP03075964A EP03075964A EP1356909A2 EP 1356909 A2 EP1356909 A2 EP 1356909A2 EP 03075964 A EP03075964 A EP 03075964A EP 03075964 A EP03075964 A EP 03075964A EP 1356909 A2 EP1356909 A2 EP 1356909A2
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EP
European Patent Office
Prior art keywords
plant
pressing
belt
article
expansion
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
EP03075964A
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German (de)
English (en)
Other versions
EP1356909A3 (fr
EP1356909B1 (fr
Inventor
P. SACMI - Coop. Mecc. Imola S.C.A.R.L. Rivola
A. SACMI - Coop. Mecc. Imola S.C.A.R.L. Cocquio
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
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Sacmi Imola SC
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Publication date
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Application filed by Sacmi Imola SC filed Critical Sacmi Imola SC
Publication of EP1356909A2 publication Critical patent/EP1356909A2/fr
Publication of EP1356909A3 publication Critical patent/EP1356909A3/fr
Application granted granted Critical
Publication of EP1356909B1 publication Critical patent/EP1356909B1/fr
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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
    • 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
    • B28B3/12—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
    • B28B5/026—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 the shaped articles being of indefinite length
    • B28B5/027—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 the shaped articles being of indefinite length the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed
    • 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
    • B30B5/06—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 co-operating with another endless band
    • B30B5/065—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 co-operating with another endless band using anti-friction means for the pressing band
    • B30B5/067—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 co-operating with another endless band using anti-friction means for the pressing band using anti-friction roller means

Definitions

  • This invention relates generally to a method for manufacturing ceramic tiles or slabs, and in particular to a method for pre-forming said slabs and the relative plant for its implementation.
  • Ceramic tile forming methods comprising the following operative steps:
  • the article can be decorated with a further powder layer before being fed to the second pressing.
  • the object of the invention is to overcome the drawbacks of the known art within the framework of a simple and rational solution.
  • the invention attains said object by providing a method for forming ceramic tiles or slabs which comprises a powder compaction step, on termination of which the subsequent slight expansion of the compacted article is controlled in such a manner as to prevent formation of the cracks which affect the products of the known art.
  • the expansion control concerns both the extent of the expansion and its duration, which must be the greatest possible compatible with the production cycle.
  • the method of the invention comprises the following operative steps:
  • the linear expansion of the article following the first pressing must be controlled at least in the direction perpendicular to the upper face of the article, and preferably also in the directions parallel to said face. In these latter directions the linear expansion must be preferably contained within a range between 0.1 and 1.0% of the article width measured in the direction perpendicular to the direction of advancement of the belt.
  • said first pressing station can either be a first pressing station suitable only for making said powder layer coherent, to be then subjected to a second and definitive pressing, or can constitute the only pressing and compaction station.
  • the pressure for compacting the material in the first pressing station must preferably progressively reach a maximum value between 30 and 70 kg/cm 2 .
  • the pressure to which the material is subjected must preferably reach a maximum value between 300 and 450 kg/cm 2 .
  • the method of the invention provides for the article to be reduced to blanks of smaller dimensions. Reduction of the article into blanks takes place after the first pressing even if the first pressing is the only pressing.
  • the invention also includes a plant for implementing the aforedescribed method.
  • This plant comprises a conveyor belt on which a continuous strip of powder material is formed, means for laterally retaining the material on said belt, continuous pressing means of band form which enable the powder strip on said belt to be compacted (first pressing) to obtain a coherent article of compacted powders, and means for controlling the expansion of the material on termination of said first pressing.
  • Said means for controlling the expansion of the article are preferably associated with said continuous first pressing means and positioned downstream thereof.
  • the means for controlling the expansion of the compacted article comprise two opposing flat roller tables, of which one is positioned below said belt and one above it at a distance therefrom which can be adjusted on the basis of the physical and dimensional characteristics of the article.
  • the upper roller table is inclined at a predetermined adjustable angle diverging from the direction of advancement of the belt.
  • said means for controlling the expansion of the material on termination of the first pressing can also comprise, for example, at least one fixed plate inclined to the direction of advancement of the strip of compacted material, or any other means suitable for the purpose, for example a compactor band the axis of which is inclined to the direction of advancement of the compacted strip of material.
  • Figure 1 is a schematic side section through the plant of the invention.
  • Figure 2 is a view in the direction II of Figure 1.
  • Figure 3 is an enlarged view of a detail of the invention.
  • Figures 4 and 5 are a cross-section through the lateral retention means with which the invention is provided, shown under different working conditions respectively.
  • Said figures show the plant 1, which comprises a motorized lower conveyor belt 2 on which a continuous strip of powders is deposited by usual devices, not shown as they are of known type.
  • the belt passes through a pre-compacting station 3, or first pressing station, the purpose of which is to compact the strip powders to obtain an article, of substantially parallelepiped form, of coherent material.
  • This article can then be decorated if required and then divided into blanks of suitable dimensions depending on the final product size to be obtained.
  • the first pressing station 3 comprises two mutually superposed motorized compactor devices 4 and 5, one of which is positioned below the belt 2 and the other above it at a distance from the belt 2 which can be adjusted on the basis of the thickness of the powder strip to be compacted and of the pressure at which the first pressing is to be carried out. Generally this pressure is between 20 and 100 kg/cm 2 .
  • Each of the compactors 4 and 5 comprises a motorized roller and an idle roller, indicated respectively by the reference numerals 40, 41 and 50, 51, about which there passes a respective band 42, 52.
  • a roller table 43 and 53 consisting of a plurality of idle rollers 430 and 530.
  • the purpose of the two roller tables 43 and 53 is to maintain the bands 42 and 52 pressed to compact the strip of powder material.
  • the roller table 53 can also be inclined in the direction of advancement of the belt 2 so as to make the compaction of the strip powders gradual.
  • roller tables 43 and 53 delimit the compaction (or first pressing) zone 100 of the powder strip, downstream of which there is provided a decompression zone 6 in which the powder strip expands, by virtue of suitable means, in a controlled manner to prevent the formation of cracks in the compacted article.
  • said decompression zone 6 comprises two superposed roller tables 44 and 54 positioned downstream of the roller tables 43 and 53 respectively.
  • the roller table 44 is fixed and horizontal
  • the roller table 54 is supported by a frame 55 via two actuators 56 of hydraulic or mechanical type which enable the roller table to be adjusted in level and also to be inclined to the belt 2 to enable the compacted powder mass to expand with a very low deformation gradient compatible with the intrinsic characteristics of the powders.
  • the means present in the decompression zone 6 can for example comprise at least one rigid plate, not shown, inclined to the plane of advancement of the compacted powder strip. In this case the plate maintains the belt 52 pressed against the compacted article.
  • the pre-compacting or first pressing station also comprises means for laterally retaining the powders, these means in the illustrated embodiment being in the form of two straps 8 and 9 associated with the compactor device 5.
  • each of the two straps passes partially about the compactor device 5 and about two deviator wheels 101 and 102.
  • the deviator wheels are of adjustable distance apart, in order to be able to vary the dimension of the strip of compacted powders in the direction perpendicular to the direction of advancement of the belt in accordance with the format to be obtained.
  • the two straps 8 and 9 are formed of a mixture of elastomeric material of high friction coefficient so that they become squeezed within the compaction zone between the compactors 4 and 5, and then contract laterally and increase their height in the decompression zone, to then return to their undeformed rest position in the other portions.
  • the lateral contraction of the straps in the decompression zones enables the expansion of the compacted article to be controlled in the direction of the article width, i.e. in a direction perpendicular to the advancement direction of the belt 2.
  • the elastic material mixture with which the two straps are formed and the their particular profile are such as to counteract the lateral thrusts exerted by the material on the inner side of the straps during pressing.
  • the straps are formed of closed-cell expanded EPDM rubber.
  • the profile of the straps is such that during pressing, the inner side of the strap is practically flat and perpendicular to the conveyor belt 2. This minimizes the loss of material involved in making the compacted article perfectly parallelepiped.
  • Figure 4 shows that the profile of each of the straps comprises in its two lateral faces a depressed central portion 103 connected to the ends by a curved portion 104.
  • the central portion 103 moves outwards to make the lateral face of the strap substantially flat, as shown in Figure 5.
  • the height of the cross-section through the strap decreases by about 50% from its undeformed height. This value can however vary on the basis of the type of profile used and the material with which the straps are formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Glass Compositions (AREA)
  • Finishing Walls (AREA)
EP03075964A 2002-04-24 2003-04-02 Procédé et installation pour la fabrication de carreaux ou dalles en céramique Expired - Lifetime EP1356909B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRE20020035 2002-04-24
IT2002RE000035A ITRE20020035A1 (it) 2002-04-24 2002-04-24 Metodo ed impianto per la formatura di lastre o piastrelle ceramiche

Publications (3)

Publication Number Publication Date
EP1356909A2 true EP1356909A2 (fr) 2003-10-29
EP1356909A3 EP1356909A3 (fr) 2004-12-22
EP1356909B1 EP1356909B1 (fr) 2008-01-16

Family

ID=11454227

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03075964A Expired - Lifetime EP1356909B1 (fr) 2002-04-24 2003-04-02 Procédé et installation pour la fabrication de carreaux ou dalles en céramique

Country Status (8)

Country Link
EP (1) EP1356909B1 (fr)
CN (1) CN1332796C (fr)
AT (1) ATE383932T1 (fr)
BR (1) BR0300939B1 (fr)
DE (1) DE60318645T2 (fr)
ES (1) ES2298468T3 (fr)
IT (1) ITRE20020035A1 (fr)
MX (1) MXPA03003502A (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1669178A2 (fr) 2004-12-10 2006-06-14 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Installation améliorée pour la fabrication de carreaux ou de dalles en céramique
EP1674228A3 (fr) * 2004-12-22 2006-10-25 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Système de compactage de matières céramiques pulvérulentes pour former des dalles avec une bande
EP1674227A3 (fr) * 2004-12-22 2006-10-25 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Dispositif de production de feuilles céramiques
EP1669176A3 (fr) * 2004-12-10 2006-11-08 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Installation améliorée pour la fabrication de carreaux ou de dalles en céramique
EP1669177A3 (fr) * 2004-12-10 2006-11-08 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Installation améliorée pour la fabrication de carreaux ou de dalles en céramique
WO2009010361A1 (fr) 2007-07-18 2009-01-22 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Matériau céramique et dalles obtenues à partir du matériau céramique
CN102441936A (zh) * 2011-11-06 2012-05-09 佛山市点石机械有限公司 使陶瓷砖形成石材裂纹图案的布料方法及布料系统
ITPD20110104A1 (it) * 2011-04-07 2012-10-08 Cooperativa Ceramica D Imola S C Procedimento per la realizzazione di lastre ceramiche di grandi dimensioni
WO2016046724A1 (fr) 2014-09-22 2016-03-31 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Chaîne de fabrication de produits individuels en succession en cycle continu
CN106079037A (zh) * 2016-07-29 2016-11-09 徐春雷 一种压实固体疏松物料以成型板坯的装置及方法
US20210114254A1 (en) * 2018-03-26 2021-04-22 System Ceramics S.P.A. Method for pressing ceramic slabs
RU2753891C1 (ru) * 2018-08-01 2021-08-24 Сакми Кооператива Мекканичи Имола Сощиэта Кооператива Способ уплотнения порошкового материала
EP4636194A2 (fr) 2024-04-19 2025-10-22 Unilin, BV Système de plancher, insert d'accouplement et revêtement de plancher comprenant un tel système de plancher
WO2025238534A1 (fr) 2024-05-14 2025-11-20 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Ligne et procédé de production de produits céramiques décorés en cycle continu
WO2025238536A1 (fr) 2024-05-14 2025-11-20 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Procédé de création d'une base de données destiné à une chaîne de production à cycle continu de produits céramiques décorés et serveur informatique contenant la base de données

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT511804B1 (de) 2011-11-17 2013-03-15 Berndorf Band Gmbh Vorrichtung zur herstellung einer platte aus kunststeinmaterial
CN102407463B (zh) * 2011-12-30 2013-11-06 万峰石材科技有限公司 一种人造石英石板材制备工艺及设备
CN106239702B (zh) * 2016-09-27 2020-04-14 广东科达洁能股份有限公司 一种连续成型陶瓷压砖机及其生产工艺
CN219153230U (zh) * 2022-08-24 2023-06-09 科达制造股份有限公司 释放梁倾角可控的陶瓷辊压设备
ES3056411T3 (en) 2023-02-08 2026-02-20 Cosentino Res & Development S L Method for the manufacture of tiles or slabs of compacted ceramic material

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1953704A (en) * 1930-06-02 1934-04-03 Erdmann Konrad Apparatus for manufacturing porous bodies from fibrous materials
DE3928626C1 (fr) * 1989-08-30 1991-01-24 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung Ev, 8000 Muenchen, De
IT1287505B1 (it) * 1996-11-22 1998-08-06 Algeri Maris Metodo e mezzi per la pressatura di piastrelle ceramiche.
ATE225242T1 (de) * 2000-07-25 2002-10-15 R P Srl Verfahren und vorrichtung zum füllen von formen zur herstellung von keramischen fliesen

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2385802C2 (ru) * 2004-12-10 2010-04-10 Сакми Кооператива Мекканичи Имола Сосиета` Кооператива Усовершенствованная установка для формования керамических плиток или панелей
EP1669178A2 (fr) 2004-12-10 2006-06-14 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Installation améliorée pour la fabrication de carreaux ou de dalles en céramique
RU2385801C2 (ru) * 2004-12-10 2010-04-10 Сакми Кооператива Мекканичи Имола Сосиета` Кооператива Усовершенствованная установка для формования керамических плиток или панелей
EP1669176A3 (fr) * 2004-12-10 2006-11-08 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Installation améliorée pour la fabrication de carreaux ou de dalles en céramique
EP1669177A3 (fr) * 2004-12-10 2006-11-08 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Installation améliorée pour la fabrication de carreaux ou de dalles en céramique
EP1669178A3 (fr) * 2004-12-10 2006-11-08 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Installation améliorée pour la fabrication de carreaux ou de dalles en céramique
RU2385803C2 (ru) * 2004-12-10 2010-04-10 Сакми Кооператива Мекканичи Имола Сосиета`Кооператива Усовершенствованная установка для формования керамических плиток или панелей
RU2412049C2 (ru) * 2004-12-22 2011-02-20 Сакми Кооператива Мекканичи Имола Сосиета` Кооператива Система для уплотнения керамических порошков для формования панелей с использованием ленты
EP1674227A3 (fr) * 2004-12-22 2006-10-25 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Dispositif de production de feuilles céramiques
EP1674228A3 (fr) * 2004-12-22 2006-10-25 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Système de compactage de matières céramiques pulvérulentes pour former des dalles avec une bande
WO2009010361A1 (fr) 2007-07-18 2009-01-22 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Matériau céramique et dalles obtenues à partir du matériau céramique
ITPD20110104A1 (it) * 2011-04-07 2012-10-08 Cooperativa Ceramica D Imola S C Procedimento per la realizzazione di lastre ceramiche di grandi dimensioni
WO2012137066A1 (fr) * 2011-04-07 2012-10-11 Cooperativa Ceramica D'imola S.C. Méthode de production de plaques de céramique de grande taille
CN102441936A (zh) * 2011-11-06 2012-05-09 佛山市点石机械有限公司 使陶瓷砖形成石材裂纹图案的布料方法及布料系统
WO2016046724A1 (fr) 2014-09-22 2016-03-31 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Chaîne de fabrication de produits individuels en succession en cycle continu
CN106079037A (zh) * 2016-07-29 2016-11-09 徐春雷 一种压实固体疏松物料以成型板坯的装置及方法
US20210114254A1 (en) * 2018-03-26 2021-04-22 System Ceramics S.P.A. Method for pressing ceramic slabs
US12109725B2 (en) * 2018-03-26 2024-10-08 System Ceramics S.P.A. Method for pressing ceramic slabs
RU2753891C1 (ru) * 2018-08-01 2021-08-24 Сакми Кооператива Мекканичи Имола Сощиэта Кооператива Способ уплотнения порошкового материала
EP4636194A2 (fr) 2024-04-19 2025-10-22 Unilin, BV Système de plancher, insert d'accouplement et revêtement de plancher comprenant un tel système de plancher
WO2025238534A1 (fr) 2024-05-14 2025-11-20 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Ligne et procédé de production de produits céramiques décorés en cycle continu
WO2025238536A1 (fr) 2024-05-14 2025-11-20 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Procédé de création d'une base de données destiné à une chaîne de production à cycle continu de produits céramiques décorés et serveur informatique contenant la base de données

Also Published As

Publication number Publication date
MXPA03003502A (es) 2005-02-14
ITRE20020035A1 (it) 2003-10-24
DE60318645D1 (de) 2008-03-06
ITRE20020035A0 (it) 2002-04-24
BR0300939B1 (pt) 2013-11-19
ATE383932T1 (de) 2008-02-15
CN1453110A (zh) 2003-11-05
EP1356909A3 (fr) 2004-12-22
CN1332796C (zh) 2007-08-22
ES2298468T3 (es) 2008-05-16
EP1356909B1 (fr) 2008-01-16
DE60318645T2 (de) 2008-06-05
BR0300939A (pt) 2004-06-08

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