WO2003045649A1 - Procede et dispositif destines a presser des carreaux de ceramique - Google Patents

Procede et dispositif destines a presser des carreaux de ceramique Download PDF

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Publication number
WO2003045649A1
WO2003045649A1 PCT/IT2002/000608 IT0200608W WO03045649A1 WO 2003045649 A1 WO2003045649 A1 WO 2003045649A1 IT 0200608 W IT0200608 W IT 0200608W WO 03045649 A1 WO03045649 A1 WO 03045649A1
Authority
WO
WIPO (PCT)
Prior art keywords
press
pressing
container
frame
bottom wall
Prior art date
Application number
PCT/IT2002/000608
Other languages
English (en)
Inventor
Giuseppe Marsiletti
Original Assignee
Delphin Italia S.R.L.
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
Application filed by Delphin Italia S.R.L. filed Critical Delphin Italia S.R.L.
Priority to AU2002347606A priority Critical patent/AU2002347606A1/en
Publication of WO2003045649A1 publication Critical patent/WO2003045649A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/30—Feeding material to presses
    • B30B15/302—Feeding material in particulate or plastic state to moulding presses
    • B30B15/304—Feeding material in particulate or plastic state to moulding presses by using feed frames or shoes with relative movement with regard to the mould or 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
    • 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
    • B28B13/023—Feeding the moulding material in measured quantities from a container or silo by using a feed box transferring the moulding material from a hopper 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

Definitions

  • the invention relates to a process for pressing ceramic tiles, as well as a device for realising the process.
  • the prior art teaches solutions which vary, more or less incidentally, the mix of raw materials constituting the tile mixture when the press supply hopper is filled. It is also possible to use hoppers equipped with specially-shaped grids, or use special colouring materials, optimised to achieve three-dimensional aesthetic f ⁇ nishes.
  • a more refined process involves the use of more than one pressing cycle, either carried out by a same press or using several different presses.
  • the hopper is topped up, in predetermined or incidental proportions, with various quantities of high-quality material, so as to create on the visible surface of the tiles a composite multi-level structure giving a good reproduction of natural stone with a three-dimensional effect of depth.
  • Another solution consists in the use of a semi-finished clay blank, pre-pressed in an initial preliminary pressing stage, which is subsequently subjected to the addition of various quantities of high-quality material with the aim of obtaining the desired aesthetic effects.
  • the "real" pressing of the tile, including the high-quality materials, is done subsequently.
  • this process has the advantage of allowing more rapid and economical production cycles, though the technical and aesthetic results of the finished product are inferior.
  • the present invention has the aim of obviating the drawbacks in the prior art.
  • the main aim of the invention is to make available a pressing process for ceramic tiles, as well as a device for realising the process, wherein high-quality three-dimensional aesthetic effects can be obtained, all by using simple apparatus and with rapid and economical production times.
  • a further aim of the invention is to make available a pressing process for ceramic tiles as well as a device for realising the process, which are particularly suitable for obtaining three-dimensional aesthetic effects on vitrified stoneware ceramic tiles.
  • a further aim of the present invention is that it provides a pressing process for ceramic tiles as well as a device for realising the process which are able to minimise material wastage, and in particular wastage of high-quality material used for obtaining the desired aesthetic effects.
  • a further aim of the present invention is to make available a pressing process for ceramic tiles, as well as a device for realising the process, which can largely be obtained through the use of standard plant equipment, easily obtainable on the market.
  • a process for pressing ceramic tiles which is characterised in that it comprises the stages of: loading a container having at least one frame and at least one extractable bottom wall, with a forming material, for example clayey powder materials; introducing the container internally of a press, for example in a bottom die of the press, the bottom die being in a loading position; extracting the bottom wall of the container, positioning the bottom wall externally of the press; extracting the frame, positioning it externally of the press; bringing the bottom die into a pressing position, and pressing the forming material.
  • a forming material for example clayey powder materials
  • the process involves the use of at least one pressing device for ceramic tiles comprising a container for a forming material, characterised in that the container comprises a frame and an extractable bottom wall, the bottom wall being translatable on the frame and being mobile, with respect to the frame between a first position in which the extractable bottom wall is inserted in the frame and a second position in which the extractable bottom wall is removed from the frame.
  • figure 1 shows a view from above of a pressing device for ceramic tiles, the object of the present invention
  • figure la is a side view of a pressing device for ceramic tiles of the invention, with the bottom wall removed from the frame of the device
  • figure lb is a side view of the pressing device for ceramic tiles of the invention, with the bottom wall inserted in the frame of the device
  • figures 2 and 3 represent two different views, respectively frontal and lateral, of the pressing device for ceramic tiles of the invention
  • figure 4 is a schematic view of the stage of insertion of the device of the invention, inside the operative space of a press for ceramic tiles, the insertion stage being contemporary to the expulsion of a finished tile from the press
  • figure 5 is a schematic view of the extraction stage of the
  • 1 denotes in its entirety a device for realising the pressing process for ceramic tiles which is object of the present invention (see figures 1, 2 and 3).
  • the device 1 essentially consists of a container for the material, or rather for a mixture of forming materials, for example clayey powder materials 3.
  • the container 1 in effect functions as a supply tray or hopper for a ceramic tile press, and comprises a frame 2 having a plurality of frontal walls 24a and lateral walls 24c, and a bottom wall 25 which is extractable and which is translatably mounted on the frame 2 and is mobile between a first position in which the bottom wall 25 is inserted in the frame 2 (see figure lb) and a second position in which the bottom wall 25 is removed or mostly removed from the frame 2 (see figure la).
  • the frame 2 can be equipped with a known-type internal grid, not shown in the figures, for example a beehive-type grid.
  • the bottom wall 25 comprises and is solidly constrained to a portion of anchorage 22 having special guide means 23 for operatively connecting with special and known means for movement and control, not shown in the figures.
  • the frame 2 and the bottom wall 25 are preferably both made of metal, for example the frame 2 can be made of steel and the bottom wall 25 of aluminium.
  • the bottom wall 25 is made to all necessary specifications, well known to experts in the field, to give a perfect and regular planarity and dimensional stability.
  • the reciprocal motion of the frame 2 and the bottom wall 25 is made possible for example by use of special grooved guides (not illustrated in the enclosed figures) made directly in the body of the frame 2, for example at its lateral walls 24c; the extractable bottom wall 25 slides in and out of these guides.
  • ball bearing guides 26 are used, mounted externally and parallel to the lateral walls 24c of the frame.
  • the bearing guides 26 are mounted solidly on the frame 2 and the bottom wall 25 and enable reciprocal motion between the bottom wall 25 and the frame 2, minimising friction and offering sufficiently rapid operating speeds.
  • the bearing guides 26 also guarantee perfect alignment between the frame 2 and the bottom wall 25, which is indispensable to correct functioning of the device
  • the frontal walls 24a of the frame 2 define, together with the lateral walls 24c, the volume of the internal space of the loading tray or hopper, which will be filled with clayey powder material 3 during the process of the invention.
  • the process involves the use of at least one device 1 of the above-described type, one or more supply containers or trays or hoppers for a ceramic tile press, consisting of at least one frame 2 having a bottom wall 25 which is extractable or in any case mobile with respect to the frame 2.
  • a plurality of containers or trays or hoppers of the above-described type is used.
  • the containers (or trays or hoppers) will be described hereinafter in general terms as "trays".
  • the trays (see figure 4) are generally transported by special and known means for movement, such as one or more belt systems, to a plurality of loading stations 10, which in turn can be made by setting up one or more specially equipped hoppers in series.
  • the hoppers can be, for example, equipped with sieves, screens or the like.
  • the trays are loaded at the hoppers with the forming material, or rather with a mixture of forming materials, which are generally clayey powder materials 3.
  • the ceramic tile is subjected to pressing with the upper face thereof (i.e. the surface which will be in view) facing downwards, that is, facing the bottom die of the press, while the laying side of the tile is upwards- facing, i.e. facing the upper die of the press.
  • the supply hoppers therefore deposit first the oxides and or colorants, which are the higher-quality materials which give the finished tile the desired three- dimensional aesthetic effect, and thereafter the base clay, which is destined to constitute the body of the tile, i.e. the structural support of the tile.
  • there could be a succession of at least five supply stations (not shown in the figures). At a first station a silk-screen composition of powder could be deposited on the extractable bottom 25 of the tray.
  • a plurality of composite solids could be laid by free-fall into the tray.
  • the solids could contain sands, for example semi-fired clays, fluxes, glazes and so on.
  • colouring oxides could be added here and there to create the same aesthetic effect as the veins in natural stone.
  • the tray could be loaded with base clay, i.e. the material which goes to make up the tile body.
  • the final loading stage it is preferable to proceed to a smoothing stage of the forming material in order to make sure the tile has a homogeneous thickness, and to remove waste or excess clay material from the tray. All of the final work is done on the clay base of the tile, and not the high-quality materials (oxides, colorants and so on), which makes for considerable savings of expensive materials.
  • At this point at least one tray has been filled and is ready to be positioned at the die of the press.
  • the tray is therefore positioned on a special press-loading truck 6, which generally comprises a flat and smooth surface, for example made of teflon, or at least covered with a layer of teflon.
  • the flat and smooth surface is obviously coplanar to the plane of the press.
  • the press-loading truck 6 comprises known and suitable means for movement 9, for braking and starting, command and control, and operatively associates with at least one or preferably a plurality of supply trays of the above-described type. It is usually possible to associate at least three trays of the above-described type to the press-loading truck 6.
  • a container 1 i.e. a tray according to the present invention, is mounted on the press-loading truck 6 and inserted in a press 4 for ceramic tiles.
  • the press 4 is equipped with a die consisting of two semi-dies, a namely a bottom die 5a and a top die 5b.
  • the bottom die 5 a When the tray is inserted into the press 4, precisely the bottom die 5a, the bottom die 5 a is in a first position, which can for example be called the loading position. In this loading position, the bottom die 5 a is at the same level as the press-loading truck 6.
  • the top die 5b is located in a first position, which can, like the first position for the bottom die 5 a, be termed a loading position.
  • the top die 5b is distanced from the bottom die 5 a so that enough space is created in the pressing zone for easy insertion of the press- loading truck 6.
  • the press 4 loading stage is followed by a rapid extraction of the mobile bottom wall 25 (see figure 5) of the tray, through the use of special and known means of movement and control, not illustrated in the figures, which engage the portion of anchorage 22 and the guides 23 of the bottom wall 25. It is possible to create productive cycles which have a rapid extraction speed of the bottom wall 25 since the bottom wall 25 is very light.
  • the extraction of the bottom wall 25 of the tray is preferably done at the same time (more or less) as the insertion of the tray in the bottom die 5 a of the press 4.
  • the material dropping stage into the bottom die 5 a is made easier by the fact that the bottom die 5a, subsequently to the extraction of the bottom wall 25, lowers and is brought into an intermediate position below the plane defined by the press- loading truck 6 (see figure 6).
  • the forming material therefore deposits gently inside the bottom die 5 a.
  • the now-empty tray can be removed by extraction of the press-loading truck 6 (see figure 7). During this stage any excess forming material on the laying surface of the tile is removed by skimming, done by special means 13 for skimming which are solidly constrained to the press-loading truck 6. At this point the pressing operation can begin.
  • the pressing cycle begins by bringing the lower die 5a into a third position, which we can term the pressing position (see figure 8).
  • the pressing position we can term the pressing position (see figure 8).
  • the pressing operation is achieved by lowering the top die 5b into a second position, i.e. a pressing position, on the bottom die 5a.
  • the bottom 5a and top dies 5b are returned to their loading configuration, that is, into their original positions.
  • the press 4 therefore opens and a new work cycle can begin, with the ingress of a new tray and a contemporaneous expulsion of the just-formed tile.
  • Cycle times can be further improved by using a plurality of trays, so that the press 4 can work in a continuous cycle, following the same times usually used for normal trays, i.e. those which are not equipped with the mobile bottom wall 25.
  • the plurality of trays is moved by known and suitable means for moving the material, which means transport the trays during both the press loading and unloading stages, as well as during the tray-loading stage in conjunction with the loading stations.
  • the material movement means can be assembled in various ways and configurations. For example, in the accompanying figures of the drawings, reference is made to a solution which sees the movement of the trays on two different planes, one for supply to the press and another for recycling the empty trays towards the loading stations. However, other solutions can be adopted which involve tray movement on a single plane, for example along a circuit having a horseshoe configuration, and others besides.
  • the invention achieves its set aims.
  • the invention makes available a process for pressing ceramic tiles, as well as a device for realising the process, which enables high-quality three- dimensional aesthetic effects to be obtained, using simple apparatus and with fast and economical production cycles.
  • the process and the device are particularly, though not exclusively, suitable for use in vitrified stoneware tile manufacture.
  • the invention further makes available a ceramic tile pressing process and a device for realising the process, which minimises waste of forming material, especially high-quality material used for obtaining the desired aesthetic effects.
  • the invention makes available a pressing process for ceramic tiles, as well as a device for realising the process, which is to a considerable extent achieved through the use of known and standard plants and apparatus.

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)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)

Abstract

L'invention concerne un procédé de pressage de carreaux de céramique comprenant l'utilisation d'un dispositif constitué d'un contenant (1) destiné à un matériau de formage (3), le contenant comportant un cadre (2) et une paroi de fond extractible (25), monté translatif sur le cadre (2). Le procédé de l'invention comprend les étapes consistant à charger le contenant (1) d'un matériau de formage (3), à introduire le contenant (1) à l'intérieur d'une presse (4), à extraire la paroi de fond (25) puis le cadre (2) du contenant (1) de la zone fonctionnelle de la presse (4), et enfin à presser le matériau de formage (3).
PCT/IT2002/000608 2001-11-28 2002-09-23 Procede et dispositif destines a presser des carreaux de ceramique WO2003045649A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002347606A AU2002347606A1 (en) 2001-11-28 2002-09-23 A process and a device for pressing ceramic tiles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITRE01A000114 2001-11-28
ITRE20010114 ITRE20010114A1 (it) 2001-11-28 2001-11-28 Procedimento e dispositivo di pressatura per piastrelle ceramiche

Publications (1)

Publication Number Publication Date
WO2003045649A1 true WO2003045649A1 (fr) 2003-06-05

Family

ID=11454160

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2002/000608 WO2003045649A1 (fr) 2001-11-28 2002-09-23 Procede et dispositif destines a presser des carreaux de ceramique

Country Status (3)

Country Link
AU (1) AU2002347606A1 (fr)
IT (1) ITRE20010114A1 (fr)
WO (1) WO2003045649A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2245845A1 (es) * 2002-09-06 2006-01-16 Guoquan Huag Un metodo mejorado para alimentar materiales para baldosas de ceramica y placa de soporte para los mismos.
CN100348397C (zh) * 2004-12-16 2007-11-14 谭仲声 一种瓷砖坯体的生产方法及其装置
JP2009527955A (ja) * 2006-02-23 2009-07-30 トゲバ ホールディング エージー 通信網ノード間でのユニキャスト又はマルチキャストのエンドツーエンドのデータ及び／又はマルチメディアストリーム伝送用の交換システム及び対応方法
CN111844406A (zh) * 2019-04-25 2020-10-30 徐州市贾汪区金牛彩砖有限公司 一种建筑砖块的生产装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1445820A (fr) * 1965-07-06 1966-07-15 Voor Werktuigbouw Ir W A M Pom Procédé et appareil de fabrication de briquettes
GB1158221A (en) * 1966-04-05 1969-07-16 Schlosser & Co Gmbh Device for Charging Moulds.
JPH08244024A (ja) * 1995-03-09 1996-09-24 Inax Corp 地層模様タイルの坏土の充填方法
EP0858873A1 (fr) * 1997-02-18 1998-08-19 Gruppo Concorde S.p.A. Dispositif pour le pressage de poudres, en particulier dispositif et procédé pour le pressage de carreaux en céramique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1445820A (fr) * 1965-07-06 1966-07-15 Voor Werktuigbouw Ir W A M Pom Procédé et appareil de fabrication de briquettes
GB1158221A (en) * 1966-04-05 1969-07-16 Schlosser & Co Gmbh Device for Charging Moulds.
JPH08244024A (ja) * 1995-03-09 1996-09-24 Inax Corp 地層模様タイルの坏土の充填方法
EP0858873A1 (fr) * 1997-02-18 1998-08-19 Gruppo Concorde S.p.A. Dispositif pour le pressage de poudres, en particulier dispositif et procédé pour le pressage de carreaux en céramique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2245845A1 (es) * 2002-09-06 2006-01-16 Guoquan Huag Un metodo mejorado para alimentar materiales para baldosas de ceramica y placa de soporte para los mismos.
CN100348397C (zh) * 2004-12-16 2007-11-14 谭仲声 一种瓷砖坯体的生产方法及其装置
JP2009527955A (ja) * 2006-02-23 2009-07-30 トゲバ ホールディング エージー 通信網ノード間でのユニキャスト又はマルチキャストのエンドツーエンドのデータ及び／又はマルチメディアストリーム伝送用の交換システム及び対応方法
CN111844406A (zh) * 2019-04-25 2020-10-30 徐州市贾汪区金牛彩砖有限公司 一种建筑砖块的生产装置

Also Published As

Publication number Publication date
ITRE20010114A1 (it) 2003-05-28
AU2002347606A1 (en) 2003-06-10

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