EP0873832A1 - Dispositif pour le pressage de carreaux en céramique comportant deux couches - Google Patents

Dispositif pour le pressage de carreaux en céramique comportant deux couches Download PDF

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Publication number
EP0873832A1
EP0873832A1 EP98107328A EP98107328A EP0873832A1 EP 0873832 A1 EP0873832 A1 EP 0873832A1 EP 98107328 A EP98107328 A EP 98107328A EP 98107328 A EP98107328 A EP 98107328A EP 0873832 A1 EP0873832 A1 EP 0873832A1
Authority
EP
European Patent Office
Prior art keywords
grid
powder
tray
compartments
dies
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.)
Withdrawn
Application number
EP98107328A
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German (de)
English (en)
Inventor
Pietro Rivola
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
Application filed by Sacmi Imola SC filed Critical Sacmi Imola SC
Publication of EP0873832A1 publication Critical patent/EP0873832A1/fr
Withdrawn legal-status Critical Current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
    • 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
    • B28B13/02—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

Definitions

  • the present invention relates to an apparatus for pressing two-layer ceramic tiles.
  • the aim of the present invention is to provide an apparatus by virtue of which it is possible to obtain aesthetic and physical characteristics during pressing by acting on the distribution of the material that composes the surface layer of the tiles.
  • an apparatus for pressing ceramic tiles which comprises a press which has a lower mold comprising a containment rim provided with openings and dies which are guided in said openings in order to delimit molding compartments which are meant to be filled with preset amounts of powders and to receive the pressing punches, and a powder loading device constituted by a carriage provided with a powder containment grid, actuated between a first position, in which said grid is below a feeder in order to receive the powder to be pressed, and a second position, which lies above said containment rim and at which said dies are lowered to allow to discharge said powder from said grid into said molding compartments and to allow the forming of a first layer; characterized in that on said carriage, in front of said grid, a tray is provided which is suitable to receive, from an auxiliary feeder, an amount of auxiliary powder when said grid is in said first position, said dies being actuated so that when the grid moves toward the position in which it lies above said molding compartments said dies are co-planar to the surface
  • the apparatus comprises a press, which is schematically designated by the reference numeral 1, and a loading device, which is schematically designated by the reference numeral 2.
  • the press 1 has an entirely conventional structure and is therefore not described in detail hereinafter. It comprises a lower half-mold 3 which is composed of a containment rim 4 in which there is a series of openings 5 which are open upward and in which the dies 6 are guided.
  • the dies 6 can be raised into a position in which their active upper surface is co-planar to the surface of the containment rim 4 and lowered with one or more strokes in order to form, inside the openings 5, compartments for containing and molding the tiles.
  • the compartments are designated by the same reference numeral 5 as the openings.
  • Pressing punches 7 are arranged above the containment rim 4 and in alignment with the compartments 5 and are mounted on the moving beam of the press.
  • the device for loading the powders to be pressed in order to form the tiles is constituted by a carriage which is composed of a frame which is guided, by means of wheels, on horizontal tracks and is motorized with a back-and-forth motion in the direction A by an actuation device. Since these elements, too, are substantially conventional, they are not described in detail. By way of information regarding the structure and the movement of the carriage, reference is made to Italian patent no. 1,235,906 in the name of the same Applicant.
  • the frame frontally moves a powder containment grid 8 which is closed in a downward region by a surface 9 on which the grid slides during the reciprocating motion of the carriage.
  • the sliding surface 9 is co-planar to the upper face of the containment rim 4, so that the grid 8 can pass, during its movements, from the surface 9 onto the containment rim 4 and vice versa.
  • a tray 10 which is closed in a downward region by the surface 9 on which it slides. The tray 10 is installed so that it can be moved horizontally closer or further away with respect to the grid 8 by means of suitable actuators.
  • a roller 11 is interposed between the tray 10 and the grid 8, has a contoured surface and can rotate about a horizontal axis which is perpendicular to the sliding direction A of the grid 8.
  • the roller 11 is mounted on the carriage so that it can be raised above the sliding surface or lowered below it when, as described hereinafter, it is located at the compartments 5.
  • the tray 10 is meant to contain an amount of powder which is auxiliary with respect to the amount transferred to the grid 8.
  • the powder for feeding the grid 8 and the tray 10 is supplied by two respective hoppers 12 and 13 which have discharge gates actuated by conventional control means.
  • the operation of the described apparatus is as follows.
  • the carriage is outside the press 1 (position of figure 1), the grid 8 and the tray 10 are filled with powders which are fed by the respective hoppers 12 and 13. Then, while keeping the dies 6 raised in a co-planar position with respect to the upper face of the containment rim 4, the carriage is made to perform an advancement stroke which aligns the grid 8 above the dies 6, whilst the tray 10 is located downstream of said dies.
  • the dies 6 are lowered by the chosen extent, which corresponds to the amount of powder to be transferred into the compartments 5 (see figure 3).
  • the grid 8 is returned to the initial position below the hopper 12, so as to remove, by skimming, the excess powder and form a layer 14 of powder which is equal to the height of the compartments 5.
  • the roller 11 is lowered into the molding compartments 5.
  • the return of the tray 10 is actuated; by passing over the layer 14, the tray 10 forms a new layer 15 with the auxiliary powder discharged by the tray 10 as the tray moves toward the hopper 13.
  • the layer 15 fills the recesses of the impression formed by the roller 11 on the underlying layer 14 and has an upper surface which is co-planar to the surface of the containment rim 4 by virtue of the skimming effect produced by the tray 10 (see figure 5).
  • the final step of the tile forming process entails expelling the tiles from the compartments 5 by lifting the dies 6 up to the level of the upper face of the containment rim 4.
  • Figure 12 illustrates an embodiment in which fixed or rotating brushes 16 and 17 are installed on the carriage upstream and downstream of the shaping roller 11 and are supported so that they can rotate about axes which are parallel to the axis of the roller 11 in order to clean the surface of the upper punches 7 and of the lower dies 6.
  • Figures 8 to 11 illustrate a different operating sequence of the apparatus, in which, after the surface shaping of the lower layer 14 of powder by the roller 11, the dies 6 are lowered in order to deposit, by means of the tray 10, a greater amount of auxiliary powder on the previously formed layer and thus obtain a thicker upper layer.
  • FIGS 12 to 17 are views of another embodiment of the apparatus, in which the grid 8 contains the amount of powder that is sufficient to form the base layer.
  • the grid advances whilst the dies 6 are raised into a position in which they are co-planar to the upper face of the containment rim (figure 13).
  • the dies 6 are lowered by means of a suitable actuation by an extent which allows the complete emptying of the grid 8 (figure 14) and the subsequent deposition of a second layer of powder.
  • the grid is then returned to the initial loading position and is directly followed by the tray 10 (figure 15), which during the return stroke completes the filling of the compartments 5 with a second layer of powder whilst simultaneously skimming it.
  • the tray 10 is upstream of the press, as occurs in the above described configurations, the dies 6 are lowered (figure 10) and pressing is performed (figure 17), followed by the extraction of the tile thus formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Ceramic Capacitors (AREA)
EP98107328A 1997-04-23 1998-04-22 Dispositif pour le pressage de carreaux en céramique comportant deux couches Withdrawn EP0873832A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT97BO000239A IT1292873B1 (it) 1997-04-23 1997-04-23 Apparecchiatura per la pressatura di piastrelle ceramiche a due strati
ITBO970239 1997-04-23

Publications (1)

Publication Number Publication Date
EP0873832A1 true EP0873832A1 (fr) 1998-10-28

Family

ID=11342215

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98107328A Withdrawn EP0873832A1 (fr) 1997-04-23 1998-04-22 Dispositif pour le pressage de carreaux en céramique comportant deux couches

Country Status (2)

Country Link
EP (1) EP0873832A1 (fr)
IT (1) IT1292873B1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909621A1 (fr) * 1997-10-16 1999-04-21 Catia Corti Méthode pour l'obtention et la décoration d'ébauches non cuites de carreaux en céramique avant le pressage et dispositif pour la mise en oeuvre du procédé
EP1043133A2 (fr) * 1999-04-02 2000-10-11 Martinelli Ettore s.r.l. Presse pour la fabrication de carreaux avec dispositif d'alimentation pour deux couches de matériaux
EP1319486A2 (fr) * 2001-12-14 2003-06-18 Gruppo Concorde S.p.A. Procédé et dispositif pour le remplissage des moules d'une presse pour la fabrication de carreaux en céramique
CN102416655A (zh) * 2011-10-26 2012-04-18 严苏景 一种能生产纵横交错纹理效果的陶瓷砖布料方法及其装置
CN105773822A (zh) * 2014-12-24 2016-07-20 佛山市宝航机械装备行业知识产权服务有限公司 一种瓷砖布料装置
CN108214827A (zh) * 2018-03-16 2018-06-29 厦门市南昇机械设备有限公司 一种双层制块压力机
CN112976242A (zh) * 2021-01-22 2021-06-18 陈刚 一种防胚体顶部变形的陶瓷板生产用压铸设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITRE20030004A1 (it) * 2003-01-20 2004-07-21 Sacmi Metodo ed impianto per la formatura di lastre o piastrelle ceramiche.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2208054A (en) * 1937-06-21 1940-07-16 Gordon W Reed Brick press
US2218196A (en) * 1937-06-21 1940-10-15 Gordon W Reed Brick press
FR1501676A (fr) * 1965-11-30 1967-11-10 Procédé pour le pressage de carreaux de ciment, de céramique ou d'autres matériaux, présentant un dessin décoratif sur leur surface exposée
DE1281915B (de) * 1965-03-27 1968-10-31 Thuringia Feinkeramikmaschinen Fuellvorrichtung an Pressen zum Herstellen zweischichtiger Platten
NL6707021A (nl) * 1967-05-22 1968-11-25 Mosa Porselein & Tegelfab Werkwijze en inrichting voor het persen van meerlaagstegels
IT1214093B (it) * 1987-04-30 1990-01-10 Mass Spa Carrello a doppio caricamento per stampi formatori di piastrelle ceramiche
EP0444730A2 (fr) * 1990-02-26 1991-09-04 L.B. Officine Meccaniche S.P.A. Chariot de remplissage double pour l'alimentation de moules pour céramique, en particulier pour la fabrication de carreaux pressés émaillés

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2208054A (en) * 1937-06-21 1940-07-16 Gordon W Reed Brick press
US2218196A (en) * 1937-06-21 1940-10-15 Gordon W Reed Brick press
DE1281915B (de) * 1965-03-27 1968-10-31 Thuringia Feinkeramikmaschinen Fuellvorrichtung an Pressen zum Herstellen zweischichtiger Platten
FR1501676A (fr) * 1965-11-30 1967-11-10 Procédé pour le pressage de carreaux de ciment, de céramique ou d'autres matériaux, présentant un dessin décoratif sur leur surface exposée
NL6707021A (nl) * 1967-05-22 1968-11-25 Mosa Porselein & Tegelfab Werkwijze en inrichting voor het persen van meerlaagstegels
IT1214093B (it) * 1987-04-30 1990-01-10 Mass Spa Carrello a doppio caricamento per stampi formatori di piastrelle ceramiche
EP0444730A2 (fr) * 1990-02-26 1991-09-04 L.B. Officine Meccaniche S.P.A. Chariot de remplissage double pour l'alimentation de moules pour céramique, en particulier pour la fabrication de carreaux pressés émaillés

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 9202, Derwent World Patents Index; Class P64, AN 92-011065, XP002070634 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909621A1 (fr) * 1997-10-16 1999-04-21 Catia Corti Méthode pour l'obtention et la décoration d'ébauches non cuites de carreaux en céramique avant le pressage et dispositif pour la mise en oeuvre du procédé
EP1043133A2 (fr) * 1999-04-02 2000-10-11 Martinelli Ettore s.r.l. Presse pour la fabrication de carreaux avec dispositif d'alimentation pour deux couches de matériaux
EP1043133A3 (fr) * 1999-04-02 2003-01-02 Martinelli Ettore s.r.l. Presse pour la fabrication de carreaux avec dispositif d'alimentation pour deux couches de matériaux
EP1319486A2 (fr) * 2001-12-14 2003-06-18 Gruppo Concorde S.p.A. Procédé et dispositif pour le remplissage des moules d'une presse pour la fabrication de carreaux en céramique
EP1319486A3 (fr) * 2001-12-14 2004-05-19 Gruppo Concorde S.p.A. Procédé et dispositif pour le remplissage des moules d'une presse pour la fabrication de carreaux en céramique
CN102416655A (zh) * 2011-10-26 2012-04-18 严苏景 一种能生产纵横交错纹理效果的陶瓷砖布料方法及其装置
CN105773822A (zh) * 2014-12-24 2016-07-20 佛山市宝航机械装备行业知识产权服务有限公司 一种瓷砖布料装置
CN108214827A (zh) * 2018-03-16 2018-06-29 厦门市南昇机械设备有限公司 一种双层制块压力机
CN108214827B (zh) * 2018-03-16 2023-12-08 厦门市南昇机械设备有限公司 一种双层制块压力机
CN112976242A (zh) * 2021-01-22 2021-06-18 陈刚 一种防胚体顶部变形的陶瓷板生产用压铸设备

Also Published As

Publication number Publication date
ITBO970239A1 (it) 1998-10-23
IT1292873B1 (it) 1999-02-11
ITBO970239A0 (it) 1997-04-23

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