EP1641607A1 - Method and plant for forming ceramic slabs or tiles of controlled thickness - Google Patents
Method and plant for forming ceramic slabs or tiles of controlled thicknessInfo
- Publication number
- EP1641607A1 EP1641607A1 EP04740798A EP04740798A EP1641607A1 EP 1641607 A1 EP1641607 A1 EP 1641607A1 EP 04740798 A EP04740798 A EP 04740798A EP 04740798 A EP04740798 A EP 04740798A EP 1641607 A1 EP1641607 A1 EP 1641607A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plant
- powders
- pressing
- belt
- thickness
- 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
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
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
- B28B17/0063—Control arrangements
- B28B17/0072—Product control or inspection
-
- 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
-
- 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
- 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
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:
- a pre-pressing station of continuous type generally consisting of at least one roller (or a compactor band) which effects a first pressing of the powders on the flexible belt to obtain a coherent article of compacted powders
- the slab or tile thickness can vary during the course of the day.
- the product thickness variations are imputable to variations in the moisture content of the compacted powder, which influence its particle size distribution, and also to wear of the powder feed outlets, which widen with consequent increase in the powder quantity and hence in the thickness of the powder layer intended for pre-compaction and final pressing.
- the object of the invention is to overcome these 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 includes controlling the powder quantity, and indirectly the thickness of the powder later to be compacted, on the basis of the thickness of the compacted article.
- the object of the invention is attained by controlling the height of that side of the powder feed outlet to the belt which acts as the powder layer scraper, to control the thickness of the powder layer conveyed by the belt.
- This control is effected on the basis of the measured thickness of the pre- compacted article.
- the method of the invention comprises the following operative steps:
- 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 20 and 100 kg/cm 2 , and preferably 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 invention also includes a plant for implementing the aforedescribed method.
- This plant comprises a conveyor belt on which a continuous layer of powder material is created, means for laterally retaining the material on said belt, continuous pressing means of band form which enable the powder layer on said belt to be compacted at a predetermined constant pressure to obtain a coherent article of pre-compacted powders, and means for measuring the thickness of the article on termination of said first pressing.
- Said means for measuring the thickness of the article are preferably associated with a processor which controls the distance of the scraper means from the belt.
- Said means for measuring the article thickness on termination of the first pressing can comprise usual measurement transducers, or any other device suitable for the purpose.
- the means for controlling the distance of that side of the powder feed outlet to the belt which acts as the scraper are normal mechanical micro-regulating means, such as a controlled advancement motor operating a male-female screw combination.
- the invention is illustrated applied to a pre-compaction plant, but can be equally applied to a final compaction plant.
- 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.
- FIG. 4 is a block diagram of the invention.
- Said figures show, for loading the powder to be compacted, a hopper 200 positioned above a belt 201 onto which the powder is discharged.
- the belt is driven by usual means, not shown.
- That side of the feed outlet of the hopper 200 facing the belt advancement direction is defined by a vertically movable wall 202 acting as scraper for the layer of discharged powder.
- the wall 202 is engaged, via the appendix 203 in which the female thread is provided, by a screw 204 which regulates the distance of the lower edge of the wall 202 from the belt 201.
- the female thread provided in the appendix 203 is engaged by the screw
- the motor 208 is controlled to rotate in both directions by a usual control circuit linked to a processor
- the conveyor belt 201 transfers the material onto a motorized conveyor belt 2 which passes through a station 3, which in the illustrated example is a pre-compacting station, or first pressing station, the purpose of which is to compact the powder layer to obtain a pre-compacted article of coherent material having a rectangular cross-section.
- a station 3 which in the illustrated example is a pre-compacting station, or first pressing station, the purpose of which is to compact the powder layer to obtain a pre-compacted article of coherent material having a rectangular cross-section.
- This article can then be decorated and divided into blanks of suitable dimensions depending on the final product size to be obtained.
- the article must finally be subjected to final pressing.
- the 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 layer 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 compactor devices 4 and 5 comprises a motorized roller and an idle roller, indicated respectively by the reference numerals 40, 41 and
- 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 layer of powder material.
- the roller table 53 can also be inclined in the direction of advancement of the belt 2 in order to make the compaction of the powders of the layer gradual.
- the roller tables 43 and 53 define the compaction (or first pressing) zone of the powder layer, downstream of which there is provided a decompression zone 6 in which the powder layer is allowed to expand by 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.
- roller table 44 is fixed and horizontal, whereas the roller table 54 is supported by a frame
- roller table 55 via two actuators 56 of hydraulic 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 desired deformation gradient, to maintain the compaction pressure constant and to measure the thickness of the compacted layer leaving.
- the rod 561 of the actuator 56 emerges at its top where it is associated with a position transducer 560 which feeds its signals to the processor 209.
- 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 deformable straps 8 and 9, associated with the compactor device 5.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL04740798T PL1641607T3 (en) | 2003-07-07 | 2004-07-05 | Method and plant for forming ceramic slabs or tiles of controlled thickness |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000071A ITRE20030071A1 (en) | 2003-07-07 | 2003-07-07 | METHOD AND PLANT FOR FORMING SHEETS OR |
PCT/EP2004/007495 WO2005005115A1 (en) | 2003-07-07 | 2004-07-05 | Method and plant for forming ceramic slabs or tiles of controlled thickness |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1641607A1 true EP1641607A1 (en) | 2006-04-05 |
EP1641607B1 EP1641607B1 (en) | 2008-08-20 |
Family
ID=34044559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04740798A Active EP1641607B1 (en) | 2003-07-07 | 2004-07-05 | Method and plant for forming ceramic slabs or tiles of controlled thickness |
Country Status (12)
Country | Link |
---|---|
EP (1) | EP1641607B1 (en) |
CN (1) | CN100563962C (en) |
AT (1) | ATE405396T1 (en) |
BR (1) | BRPI0411718B1 (en) |
DE (1) | DE602004015988D1 (en) |
ES (1) | ES2311828T3 (en) |
IT (1) | ITRE20030071A1 (en) |
MX (1) | MXPA05014130A (en) |
PL (1) | PL1641607T3 (en) |
PT (1) | PT1641607E (en) |
RU (1) | RU2397065C2 (en) |
WO (1) | WO2005005115A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUA20164307A1 (en) * | 2016-06-13 | 2017-12-13 | Sacmi | MACHINE AND METHOD FOR THE COMPACTION OF CERAMIC POWDER |
WO2018051257A1 (en) | 2016-09-16 | 2018-03-22 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Method and apparatus for forming compacted powder products |
EP3623130A1 (en) | 2018-09-17 | 2020-03-18 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Machine and method for compacting a powder material |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101376254B (en) * | 2007-08-29 | 2012-01-04 | 北新集团建材股份有限公司 | Embossed system of solid slab |
CN102615696A (en) * | 2012-04-13 | 2012-08-01 | 河南省四达仙龙实业有限公司 | Prefabricated slab forming die drawing machine |
GB2510340B (en) | 2013-01-30 | 2017-12-06 | Rtl Mat Ltd | Apparatus and method for manufacturing a composite product from plural components |
MX2018006041A (en) * | 2015-11-16 | 2018-08-01 | System Spa | A forming element for ceramic articles. |
CN106079037A (en) * | 2016-07-29 | 2016-11-09 | 徐春雷 | A kind of it is compacted the solid loose material device and method with shaping slab |
CN106239702B (en) * | 2016-09-27 | 2020-04-14 | 广东科达洁能股份有限公司 | Continuous forming ceramic brick press and production process thereof |
CN106738212B (en) * | 2017-01-10 | 2019-07-12 | 佛山市赛普飞特机械有限公司 | A kind of continuous pony press molding machine of ceramic powder |
IT201800006678A1 (en) * | 2018-06-26 | 2019-12-26 | METHOD AND PLANT FOR THE REALIZATION OF CERAMIC PRODUCTS | |
ES2936264T3 (en) * | 2018-09-21 | 2023-03-15 | Sacmi | Machine and method for compacting powdered material |
IT202000013582A1 (en) | 2020-06-08 | 2021-12-08 | Sacmi | PLANT AND METHOD FOR THE REALIZATION OF CERAMIC ITEMS |
IT202000013594A1 (en) | 2020-06-08 | 2021-12-08 | Sacmi | PLANT AND METHOD FOR THE REALIZATION OF CERAMIC ITEMS |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06320520A (en) * | 1993-05-17 | 1994-11-22 | Kubota Corp | Production equipment for planar building element |
IT1269274B (en) * | 1994-11-22 | 1997-03-26 | Carlo Antonio Camorani | METHOD FOR FORMING CERAMIC TILES AND RELATED PLANT |
IT1287505B1 (en) * | 1996-11-22 | 1998-08-06 | Algeri Maris | 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 |
-
2003
- 2003-07-07 IT IT000071A patent/ITRE20030071A1/en unknown
-
2004
- 2004-07-05 EP EP04740798A patent/EP1641607B1/en active Active
- 2004-07-05 ES ES04740798T patent/ES2311828T3/en active Active
- 2004-07-05 AT AT04740798T patent/ATE405396T1/en not_active IP Right Cessation
- 2004-07-05 PT PT04740798T patent/PT1641607E/en unknown
- 2004-07-05 DE DE602004015988T patent/DE602004015988D1/en not_active Expired - Fee Related
- 2004-07-05 MX MXPA05014130A patent/MXPA05014130A/en active IP Right Grant
- 2004-07-05 WO PCT/EP2004/007495 patent/WO2005005115A1/en active IP Right Grant
- 2004-07-05 RU RU2005140057/03A patent/RU2397065C2/en active IP Right Revival
- 2004-07-05 PL PL04740798T patent/PL1641607T3/en unknown
- 2004-07-05 BR BRPI0411718-2A patent/BRPI0411718B1/en not_active IP Right Cessation
- 2004-07-05 CN CNB2004800174455A patent/CN100563962C/en active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2005005115A1 * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ITUA20164307A1 (en) * | 2016-06-13 | 2017-12-13 | Sacmi | MACHINE AND METHOD FOR THE COMPACTION OF CERAMIC POWDER |
WO2017216725A1 (en) * | 2016-06-13 | 2017-12-21 | Sacmi Cooperativa Meccanici Imola Società Cooperativa | Machine and method for compacting ceramic powder |
RU2705685C1 (en) * | 2016-06-13 | 2019-11-11 | Сакми Кооператива Мекканичи Имола Сочиета' Кооператива | Apparatus and method for pressing ceramic powder |
US11084184B2 (en) | 2016-06-13 | 2021-08-10 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Machine and method for compacting ceramic powder |
WO2018051257A1 (en) | 2016-09-16 | 2018-03-22 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Method and apparatus for forming compacted powder products |
EP3623130A1 (en) | 2018-09-17 | 2020-03-18 | Sacmi Cooperativa Meccanici Imola Societa' Cooperativa | Machine and method for compacting a powder material |
Also Published As
Publication number | Publication date |
---|---|
RU2397065C2 (en) | 2010-08-20 |
BRPI0411718A (en) | 2006-08-08 |
ATE405396T1 (en) | 2008-09-15 |
BRPI0411718B1 (en) | 2015-07-14 |
MXPA05014130A (en) | 2006-03-13 |
CN100563962C (en) | 2009-12-02 |
PT1641607E (en) | 2008-10-21 |
DE602004015988D1 (en) | 2008-10-02 |
CN1809448A (en) | 2006-07-26 |
PL1641607T3 (en) | 2009-04-30 |
ES2311828T3 (en) | 2009-02-16 |
ITRE20030071A1 (en) | 2005-01-08 |
WO2005005115A1 (en) | 2005-01-20 |
RU2005140057A (en) | 2007-08-20 |
EP1641607B1 (en) | 2008-08-20 |
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