EP1500480B1 - A device for forming ceramic products, including slabs, tiles and the like, by powder pressing - Google Patents

A device for forming ceramic products, including slabs, tiles and the like, by powder pressing Download PDF

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Publication number
EP1500480B1
EP1500480B1 EP04076698A EP04076698A EP1500480B1 EP 1500480 B1 EP1500480 B1 EP 1500480B1 EP 04076698 A EP04076698 A EP 04076698A EP 04076698 A EP04076698 A EP 04076698A EP 1500480 B1 EP1500480 B1 EP 1500480B1
Authority
EP
European Patent Office
Prior art keywords
pressing
rest plane
forming frame
forming
organ
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.)
Active
Application number
EP04076698A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1500480A3 (en
EP1500480A2 (en
Inventor
Franco Stefani
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.)
System SpA
Original Assignee
System SpA
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 System SpA filed Critical System SpA
Publication of EP1500480A2 publication Critical patent/EP1500480A2/en
Publication of EP1500480A3 publication Critical patent/EP1500480A3/en
Application granted granted Critical
Publication of EP1500480B1 publication Critical patent/EP1500480B1/en
Anticipated expiration legal-status Critical
Active 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
    • B28B5/021—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 definite length
    • 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
    • B28B3/02—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form
    • B28B3/024—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein a ram exerts pressure on the material in a moulding space; Ram heads of special form the pressure on the material being transmitted through flexible or resilient wall parts, e.g. flexible cushions on the ramming surface, resilient wall parts pressing as a result of deformation caused by ram pressure
    • 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 prior art in the field of tile forming is based on the use of dies, inserted in presses, which are, generally speaking, constituted by a cell, internally of which the powders are deposited, and by at least one punch or top die, which has the task of pressing the previously-deposited powders in the cell.
  • the prior art also teaches the use of dies in which the cell is not afforded in the bottom die, which is instead constituted by a plane on which a layer of powders is deposited, which is then pressed by the punch or top die.
  • the delimitation and lateral containing of the material to be pressed to form the tile or slab is formed by a frame associated to the punch or top die, the frame being mobile with respect to the punch so as to project inferiorly therefrom in order to come into contact and remain in contact, during the pressing operation, with the plane on which the layer of powders has been deposited.
  • the prior art includes publication EP 1136211 , which teaches a device for forming ceramic materials, such as slabs, tiles and the like, by pressing powders, in which the material (powders) to be pressed in the form of a layer is predisposed on the rest plane, which is constituted by the upper face of a continual belt, which is supported slidingly on a lower press organ. Pressing is achieved using an upper press organ by interposition of a ring-wound continuous belt, on the external surface of which - the external surface being brought down onto the upper face of the continuous belt - a least one forming frame is arranged, which projects inferiorly and is predisposed in order to create a perimeter delimitation of a closed zone (surface) to be pressed.
  • the forming frame also has the task of generating, following the pressing operation, an edging of the pressed product, characterised by having a greater density than the internal zones.
  • the main aim of the present invention is to obviate the drawbacks inherent in the prior art.
  • a further advantage of the invention is that it is very precise in positioning the pressed piece, no longer subject to the oscillations of the belt.
  • the device 1 denotes in its entirety a device for forming ceramic materials, such as slabs, tiles and the like, by powder pressing.
  • the device 1 is schematically constituted by a press bearing a central opening crossed by a lower element 2 and an upper element 4.
  • the lower element 2 bearing a lower rest plane 3 for supporting the material (powders) to be pressed 20, as well as the final pressed piece 21, is constituted by an upper branch of a continuous belt 12.
  • the upper element 4 is constituted by the horizontal lower branch of a continuous belt 11, ring-wound and stretched between externally-positioned parallel-axis drums 16, which belt 11 is driven synchronically with the belt 12 constituting the lower element 2.
  • the lower element 2 rests and runs on the upper surface of a lower pressing organ 10, or piston, of the press and is for this reason commanded by the piston 10 to displace upwards in order to exert the pressing action.
  • the upper element 4 is elastically deformable and is provided with at least one active surface 5, predisposed to face the lower rest plane 3.
  • An upper pressing organ 13 operates above the upper element 4.
  • the upper pressing organ 13 is inferiorly provided with a downwards-facing surface, parallel to and facing the upper surface of the lower pressing organ 10, to which downwards-facing surface a containing edge, or forming frame 6 is constrained.
  • the forming frame 6 projects inferiorly with respect to the downwards-facing surface of the upper pressing organ 13, and has the aim of delimiting a perimeter of a predefined pressing zone.
  • the forming frame 6 generates, following a pressing operation, an edge 22 on the final pressed piece 21, characterised by a greater compacting, or density, with respect to the other parts of the piece 21.
  • the upper element 4 is constituted by the lower branch of a ring-wound continuous belt 11 stretched between externally-positioned parallel-axis drums 16.
  • the belt 11 is elastically deformable, and the material constituting the forming frame 6 is also considerably elastically deformable and can have, according to needs, different straight transversal sections.
  • the forming frame 6 has a straight triangular transversal section, while in another embodiment, not represented in the accompanying figures of the drawings, it might advantageously have a straight rectangular section.
  • the difference in the shapes of the transversal sections of the forming frame 6 enables the edges 22 of the final pressed piece to be characterised by different shapes, to which a different distribution of compactness can correspond.
  • the forming frame 6 is preferably "covered” by a layer 7 of elastically-deformable material having a uniform thickness, which is fixed, with a predetermined tension, to the lower surface 14 of the upper pressing organ 13. In particular, the forming frame 6 is glued to the layer 7.
  • the pressing action thanks to the presence of the forming frame 6, produces a greater compacting of the surface covered by the forming frame 6, thus realising a delimiting of the internal zone by generation of an edge 22 of the final pressed piece 21.
  • the lower pressing organ or piston 10 rises, lifting the part of the lower element 2 on which the layer of powders was previously deposited, compressing the layer against the active surface of the upper element 4.
  • the internal area which is compressed is peripherally delimited by the action of the forming frame 6 which is exerted through the medium of the layer 7 which is elastically deformable.
  • This area which will subsequently be removed by a cut, functions as a containing border, which during the pressing operation has the important function of enabling a regular and uniform formation of the internal zone and, especially, preventing of the formation of cracks or fissures or irregularities in the body of the slabs.
  • the element 4, the layer 7 and the forming frame 6 return to the undeformed state and configurations, as shown in figure 2 .
  • the active surface 5 of the element 4 returns to its original flat configuration, and is therefore easily cleanable once the interested portion thereof is out of the press area, following the advancement of the continuous belt 12.
  • An advantage of the invention is that the slab and/or tile forming operation is rendered very simple and rapid, especially where pieces of large size and small thickness are concerned.

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)
  • Finishing Walls (AREA)
  • Glass Compositions (AREA)
  • Ceramic Capacitors (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
EP04076698A 2003-07-22 2004-06-10 A device for forming ceramic products, including slabs, tiles and the like, by powder pressing Active EP1500480B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMO20030209 2003-07-22
IT000209A ITMO20030209A1 (it) 2003-07-22 2003-07-22 Dispositivo per la formatura di manufatti ceramici,

Publications (3)

Publication Number Publication Date
EP1500480A2 EP1500480A2 (en) 2005-01-26
EP1500480A3 EP1500480A3 (en) 2005-12-14
EP1500480B1 true EP1500480B1 (en) 2008-03-26

Family

ID=30012809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04076698A Active EP1500480B1 (en) 2003-07-22 2004-06-10 A device for forming ceramic products, including slabs, tiles and the like, by powder pressing

Country Status (6)

Country Link
EP (1) EP1500480B1 (it)
AT (1) ATE390259T1 (it)
DE (1) DE602004012670T2 (it)
ES (1) ES2300703T3 (it)
IT (1) ITMO20030209A1 (it)
PT (1) PT1500480E (it)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMO20070231A1 (it) 2007-07-10 2009-01-11 System Spa Processo per la realizzazione di pannelli solari.
MX2018006041A (es) * 2015-11-16 2018-08-01 System Spa Un elemento formador para articulos de ceramica.
ITUB20155626A1 (it) * 2015-11-16 2017-05-16 System Spa Elemento di formatura per manufatti ceramici
ITUA20162412A1 (it) * 2016-04-08 2017-10-08 System Spa Elemento di formatura per manufatti ceramici
ITUB20160504A1 (it) * 2016-01-15 2017-07-15 System Spa Compensatore di formato per un dispositivo di pressatura
ITUA20161363A1 (it) 2016-03-04 2017-09-04 System Spa Dispositivo di pressatura
DE102016105926A1 (de) * 2016-03-31 2017-10-05 Langenstein & Schemann Gmbh Vorrichtung und Verfahren zur Herstellung eines Presslings für Mauersteine
ITUA20164452A1 (it) 2016-06-16 2017-12-16 System Spa Dispositivo compattatore per la pressatura di manufatti ceramici

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4078760A (en) * 1976-04-29 1978-03-14 Mullins Wayne L Combination die and pallet
IT1287505B1 (it) * 1996-11-22 1998-08-06 Algeri Maris Metodo e mezzi per la pressatura di piastrelle ceramiche.
ES2219254T3 (es) * 2000-03-23 2004-12-01 System S.P.A. Dispositivo para el modelado de productos ceramicos, que comprenden losas, baldosas, azulejos y similares, mediante prensado de polvos.

Also Published As

Publication number Publication date
ITMO20030209A1 (it) 2005-01-23
PT1500480E (pt) 2008-05-08
ATE390259T1 (de) 2008-04-15
DE602004012670T2 (de) 2009-04-09
ITMO20030209A0 (it) 2003-07-22
ES2300703T3 (es) 2008-06-16
EP1500480A3 (en) 2005-12-14
DE602004012670D1 (de) 2008-05-08
EP1500480A2 (en) 2005-01-26

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