EP1674228A2 - System zum Verdichtung von pulverförmigen keramischen Werkstoffen zum Formen von Fliesen mit einem Band - Google Patents

System zum Verdichtung von pulverförmigen keramischen Werkstoffen zum Formen von Fliesen mit einem Band Download PDF

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Publication number
EP1674228A2
EP1674228A2 EP05077714A EP05077714A EP1674228A2 EP 1674228 A2 EP1674228 A2 EP 1674228A2 EP 05077714 A EP05077714 A EP 05077714A EP 05077714 A EP05077714 A EP 05077714A EP 1674228 A2 EP1674228 A2 EP 1674228A2
Authority
EP
European Patent Office
Prior art keywords
belt
compacting
powders
inclination
receiving portion
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
EP05077714A
Other languages
English (en)
French (fr)
Other versions
EP1674228B1 (de
EP1674228A3 (de
Inventor
Alessandro Sacmi Cooperativa Meccanici Cocquio
Silvano. Sacmi cooperativa Meccanici Valli
Alan Sacmi Cooperative Meccanici Babini
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
Original Assignee
Sacmi Imola SC
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=35871006&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1674228(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sacmi Imola SC filed Critical Sacmi Imola SC
Priority to PL05077714T priority Critical patent/PL1674228T3/pl
Publication of EP1674228A2 publication Critical patent/EP1674228A2/de
Publication of EP1674228A3 publication Critical patent/EP1674228A3/de
Application granted granted Critical
Publication of EP1674228B1 publication Critical patent/EP1674228B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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

  • the present invention refers to a system for compacting ceramic powders for forming slabs using a belt.
  • the dry forming process of ceramic powders on a belt foresees the use of compacting belts, bottom and top respectively, cooperating to dry compact a strip of ceramic powders that is made to advance, through a conveyor belt arranged between them, in an advancing direction parallel to the bottom belt.
  • the compacting is assisted by two compacting rollers kept pressed against the strip of ceramic powders.
  • the top belt has a first receiving portion inclined with respect to the advancing direction of the powders and a second expansion portion respectively upstream and downstream of the compacting rollers present in the compacting area.
  • the inclination of the first portion of the top belt, with respect to the advancing direction of the strip of powders, ensures a progressive squashing of the powders and allows the air present inside them to be expelled.
  • the phenomenon is more noticeable when strips of ceramic powders of a thickness greater than 30 mm are processed.
  • a further drawback of known systems derives from the fact that the receiving portion of the top belt, due to the rather small inclination, less than 2°, implies an elongation of the receiving portion of the powder that is increasingly great the greater the thickness of the powder.
  • the continuous compacting has a use limited to small thicknesses of powder with low degrees of compacting (reduction in thickness no greater than 30%).
  • the purpose of the present invention is that of providing a system for compacting ceramic powders for forming slabs using a belt that ensures the complete expulsion of air, during compacting, also for high thicknesses of powders and degrees of compacting.
  • a further purpose is that of providing a system that has a limited size, bulk and costs compared to those of the
  • Such purposes are accomplished through a system for compacting ceramic powders for forming slabs using a belt in accordance with claim 1.
  • a system for compacting ceramic powders for forming slabs using a belt in accordance with the present invention is globally indicated with 1.
  • the system 1 comprising a conveyor belt 40 on which a continuous strip "S" of powdered ceramic material is created, a first bottom compacting belt 20 arranged in contact with the conveyor belt 40 and a second top compacting belt 30 cooperating with the first belt 20 to dry compact the strip S of powders and obtain a coherent article of compacted powders.
  • the top belt 30 has a first housing portion 30a, arranged on the left in the figure, and a second expansion portion 30b, arranged on the right in the figure.
  • the lateral containment of the powders is, as usual, carried out by two deformable side walls provided by the belts 60.
  • the receiving portion 30a of the top belt 30 has an inclination " ⁇ " with respect to the direction in which the powders advance of between 2° and 15°, preferably between 3° and 10°.
  • each belt 20, 30 is wound on a pair of rollers, one of which is a drive roller, respectively indicated with 32 for the top belt 30 and with 22 for the bottom belt 20, and one of which is an idler roller, respectively indicated with 31 for the top belt 30 and with 21 for the bottom belt 20.
  • rollers 31, 32 and 21, 22 of each pair are arranged a distance apart such as to keep the respective wound belts 30, 20 taut.
  • the bottom belt 20 and the top belt 30 are equipped with a compacting roller, indicated with 33 for the top belt 30 and with 23 for the bottom belt 20.
  • the two compacting rollers 33 and 23 act directly on the belts 30, 20 at the tangency points, indicated with 34 and 24 respectively for the top belt 30 and for the bottom belt 20.
  • the distance between the two tangency points 34 and 24 is equal, apart from the thicknesses of the belts, to the minimum gap through which the strip S of powders is forced to pass.
  • two rollers 36, 26 are arranged, formed from a plurality of idler rollers, which act on the respective belts 30, 20 upstream of the two compacting rollers 33, 23 and that have the function of keeping the belts 30 and 20 pressed to press the strip of powders S.
  • the respective axes of the compacting rollers 33, 23 lie on a common plane perpendicular to the direction in which the strip S of powders advances.
  • the minimum distance between the two belts 30, 20 and therefore the distance between the two compacting rollers 33 and 23 must be varied, i.e. the mutual position between the tangency points 34 and 24.
  • top belt 30 is distanced from the bottom belt 20 through the displacement of the rollers 31, 32 on which it is wound.
  • the inclination " ⁇ " of the first receiving portion 30a can also be varied, as desired between 2° and 14°, preferably between 3° and 10° with respect to the direction in which the strip S of powders advances.
  • the point of first contact, indicated with 50, between the strip S of powders and the receiving portion 30a itself of the top belt 30 gets closer to the compacting rollers 33, 23, whereas they move away as the thickness of the strip S increases.
  • the choice of the most suitable inclination P to be assigned to the receiving portion 30a to effectively remove the air incorporated in the powders to be compacted is carried out taking into account the specific properties of the powders to be treated.
  • the length A of the portion of strip S of powders involved at the instant of compacting must be between 2 and 28 times the thickness of the strip S.
  • the length A is equal to that of the projection, on the conveyor belt 40, of the distance between the point of first contact 50 of the top belt 30 by the strip S of powders and the tangency point 34 of the compacting roller 33 with the top belt 30.
  • the system for compacting ceramic powders for forming slabs using a belt according to the present invention allows the requirements to be satisfied and allows the drawbacks mentioned in the introductory part of the present description with reference to the prior art to be overcome.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Structure Of Belt Conveyors (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Producing Shaped Articles From Materials (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
EP05077714.3A 2004-12-22 2005-12-01 System zum Verdichtung von pulverförmigen keramischen Werkstoffen zum Formen von Fliesen mit einem Band Expired - Lifetime EP1674228B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05077714T PL1674228T3 (pl) 2004-12-22 2005-12-01 System do zagęszczania proszków ceramicznych w celu formowania płyt z użyciem taśmy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000152A ITRE20040152A1 (it) 2004-12-22 2004-12-22 Sistema di compattazione a nastro di polveri ceramiche per la formatura di lastre

Publications (3)

Publication Number Publication Date
EP1674228A2 true EP1674228A2 (de) 2006-06-28
EP1674228A3 EP1674228A3 (de) 2006-10-25
EP1674228B1 EP1674228B1 (de) 2015-03-25

Family

ID=35871006

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05077714.3A Expired - Lifetime EP1674228B1 (de) 2004-12-22 2005-12-01 System zum Verdichtung von pulverförmigen keramischen Werkstoffen zum Formen von Fliesen mit einem Band

Country Status (7)

Country Link
EP (1) EP1674228B1 (de)
CN (1) CN1792592B (de)
ES (1) ES2538492T3 (de)
IT (1) ITRE20040152A1 (de)
PL (1) PL1674228T3 (de)
PT (1) PT1674228E (de)
RU (1) RU2412049C2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025169107A1 (en) * 2024-02-09 2025-08-14 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Compaction device for compacting ceramic powder material

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102744956A (zh) * 2012-06-28 2012-10-24 合肥通用机械研究院 纳米干粉末全封闭连续辊压制板工艺
ITUA20164307A1 (it) * 2016-06-13 2017-12-13 Sacmi Macchina e metodo per la compattazione di polvere ceramica
ITUA20164452A1 (it) * 2016-06-16 2017-12-16 System Spa Dispositivo compattatore per la pressatura di manufatti ceramici
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
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
IT201600105117A1 (it) * 2016-10-19 2018-04-19 Sacmi Macchina per la compattazione di materiale in polvere
IT201700075495A1 (it) * 2017-07-05 2019-01-05 Sacmi Metodo e impianto per la realizzazione di prodotti ceramici
EP3852991B1 (de) 2018-09-21 2022-12-21 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Maschine und verfahren zur verdichtung eines pulvermaterials
CN109291218A (zh) * 2018-10-15 2019-02-01 广东科达洁能股份有限公司 一种全自动升降式辊压机
CN109227891A (zh) * 2018-10-24 2019-01-18 广东科达洁能股份有限公司 一种生产带背纹的陶瓷砖坯的辊压装置

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SU90820A1 (ru) * 1950-04-27 1950-11-30 М.А. Останкович Пресс с бесконечными прессующими лентами дл непрерывного формовани кирпича и тому подобных строительных изделий из глины
GB1145614A (en) * 1967-05-16 1969-03-19 Julius Lippert Method of and apparatus for the production of moulded articles
US4325686A (en) * 1980-11-28 1982-04-20 Cabot Corporation Apparatus for densifying powders of sub-micron particle size
MX159269A (es) * 1981-06-16 1989-05-11 Eternit Fab Dansk As Mejoras en metodo y aparato para laminar un material plasticamente deformable
DE4025797C2 (de) * 1990-08-15 1994-10-06 Babcock Bsh Ag Verfahren zur Herstellung von plattenförmigen Körpern aus einer Mischung von Gips und Faserstoffen sowie Anlage zur Durchführung dieses Verfahrens
JPH04187706A (ja) * 1990-11-21 1992-07-06 Nisshin Steel Co Ltd 粉末圧延装置
DE4301594C2 (de) * 1993-01-21 2002-10-31 Dieffenbacher Gmbh Maschf Verfahren und Anlage zur Herstellung von Spanplatten
US6197235B1 (en) * 1999-02-09 2001-03-06 United States Gypsum Company Method of manufacture for textured surface panels and panel products made therefrom
ITMI20010153A1 (it) * 2001-01-29 2002-07-29 Mauro Comastri S R L Macchina per compattare polveri a pressatura lineare
CN2505263Y (zh) * 2001-11-20 2002-08-14 山东鲁阳股份有限公司 陶瓷纤维制品压榨装置
ITRE20020035A1 (it) * 2002-04-24 2003-10-24 Sacmi Metodo ed impianto per la formatura di lastre o piastrelle ceramiche
CN2631726Y (zh) * 2003-01-16 2004-08-11 徐建 一种瓷砖成型设备中的传送装置

Non-Patent Citations (1)

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Title
None

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025169107A1 (en) * 2024-02-09 2025-08-14 Sacmi Cooperativa Meccanici Imola Societa' Cooperativa Compaction device for compacting ceramic powder material

Also Published As

Publication number Publication date
RU2005138889A (ru) 2007-06-20
CN1792592A (zh) 2006-06-28
ITRE20040152A1 (it) 2005-03-22
EP1674228B1 (de) 2015-03-25
EP1674228A3 (de) 2006-10-25
PL1674228T3 (pl) 2015-08-31
PT1674228E (pt) 2015-06-25
CN1792592B (zh) 2010-05-26
ES2538492T3 (es) 2015-06-22
RU2412049C2 (ru) 2011-02-20

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