EP0444730A2 - Schieber zur Zweistufenbefüllung von Keramikformen, insbesondere zur Herstellung druckglasierter Keramikplatten - Google Patents

Schieber zur Zweistufenbefüllung von Keramikformen, insbesondere zur Herstellung druckglasierter Keramikplatten Download PDF

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Publication number
EP0444730A2
EP0444730A2 EP91200186A EP91200186A EP0444730A2 EP 0444730 A2 EP0444730 A2 EP 0444730A2 EP 91200186 A EP91200186 A EP 91200186A EP 91200186 A EP91200186 A EP 91200186A EP 0444730 A2 EP0444730 A2 EP 0444730A2
Authority
EP
European Patent Office
Prior art keywords
loader
clay
glaze
masking element
cavity
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
EP91200186A
Other languages
English (en)
French (fr)
Other versions
EP0444730B1 (de
EP0444730A3 (en
Inventor
Ermes Bigi
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.)
L B Officine Meccaniche SpA
Original Assignee
L B Officine Meccaniche 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 L B Officine Meccaniche SpA filed Critical L B Officine Meccaniche SpA
Publication of EP0444730A2 publication Critical patent/EP0444730A2/de
Publication of EP0444730A3 publication Critical patent/EP0444730A3/en
Application granted granted Critical
Publication of EP0444730B1 publication Critical patent/EP0444730B1/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
    • 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

  • This invention relates generally to the manufacture of pressure-glazed tiles, and in particular to a service carriage for loading ceramic moulds with the materials required for forming said pressure-glazed tiles, and similar products.
  • the forming method known as pressure glazing has been known for some time in the field of ceramic tile production.
  • Said two carriages are arranged to slide forwards and rearwards as stated.
  • the clay carriage firstly slides forwards while the glaze carriage remains at rest in the retracted position.
  • the clay carriage then moves rearwards to level off the clay present in the mould cavities, after which the lower mould punches are lowered through a predetermined distance, the glaze carriage then being enabled to advance to fill the upper regions of said cavities, which are free by virtue of the lowering of the punches.
  • the main object of the present invention is to overcome the aforesaid problems within the context of a constructionally simple solution of small overall size.
  • the carriage in question comprises a clay loader driven with horizontal outward and return movement relative to at least one forming cavity of an underlying ceramic mould, and provided at its front with a perforated element which distributes the powdered glaze and is upperly associated with a loader for this glaze.
  • Said glaze loader is arranged to slide parallel to said distributor while this latter is temporarily stationary, lying above said at least one forming cavity in which the clay has been previously deposited.
  • the ceramic press is able to operate at practically double the rate obtainable in the initially described known art.
  • the invention is of small overall size.
  • said glaze distributor which consists of a horizontal flat plate or masking element, is provided with an aperture of dimensions practically equal to those of said at least one cavity, whereas according to other embodiments said plate comprises one or more apertures of any shape but having a total surface area less than that of the cavity.
  • the die 2 of a ceramic mould which is shown schematically as it can be of any known type. It can be for example of the entering punch type, of the so-called "inverted mirror” type, or of the type in which the tile forming takes place in the upper part of the mould (indicated by 22 in Figure 1), which is arranged on the moving cross-member of the press 1.
  • each forming cavity 20 is lowerly delimited by a lower forming punch 21, which moves in height relative to the die 2 as described hereinafter.
  • the invention is particularly but not exclusively suitable for the manufacture of pressure-glazed tiles, the starting materials for which are introduced into the cavities 20 as will be apparent hereinafter.
  • the first material consisting (for example) of atomized clay (indicated by 66 in Figures 3A to 3C)
  • a respective hopper 60 Figures 1, 2
  • the second material consisting (for example) of powdered glaze (indicated by 77 in Figures 3A to 3C)
  • a corresponding hopper 70 located adjacent to the preceding, on the side facing the press 1 ( Figure 1).
  • Said two feed hoppers 60 and 70 for the atomized clay (or other material) and powdered glaze (or other material) respectively, are arranged transversely to an underlying structure 3 which is fixed to the press base 10 and on which the carriage of the invention is slidingly mounted.
  • the operating unit for said carriage is housed in a casing 4 supported by the structure 3 and positioned on the opposite side of the hopper 60 to that occupied by the hopper 70 (see Figures 1, 2).
  • Said operating unit is not shown as it is of known type, consisting for example of a device of the connecting rod-crank or other equivalent type, which unit can however be differently positioned from that shown, for example within the structure 3.
  • the hopper 70 can contain either a single type of powdered glaze, different powdered glazes not completely mixed together but in any event compatible, clay mixed with one or more glazes, or other materials used in the ceramics field to give the tiles particular aesthetic characteristics.
  • the carriage of the invention comprises a clay loader 5 which in the illustrated case consists of a mesh of mutually perpendicular plates, although there is nothing to prevent only transverse plates being used.
  • a glaze loader 78 consisting essentially of a small hopper caused to slide forwards and rearwards by convenient means (not shown), in a horizontal direction parallel to the sliding direction of the loader 5.
  • Two usual transverse scrapers 8 and 9 are provided to remove the clay and glaze respectively from the upper face of the die during the rearward movement of the carriage.
  • a rotary transverse cylindrical brush 10 for cleaning the upper punches (not shown) for forming the exposed face of the tiles 67 and a pusher 11 to push the formed tiles 67 from the die 2 towards a removal conveyor 12.
  • the invention operates as follows. On termination of a pressing stage the lower punches 21 (which were previously lowered onto the base of the press) are raised to the level of the die 2, after which the carriage (which had previously been moved completely rearwards, ie to the right in Figures 1 and 2), receives the enabling signal to move forwards. During this forward movement the loader 78 remains in its previously occupied position, such as that shown, and when the pusher 11 has removed the tiles from the punches 21 these latter receive the enabling signal to move downwards into a predetermined position, such as that of Figure 3A.
  • said predetermined position is known to depend on many factors, such as the thickness of the formed tile, the clay moisture content, its particle size, the ratio of finer particles to coarser particles, type of loading and other factors, as is well known to the expert of the art.
  • the loader 5 deposits clay 66 into the cavity 20, after which the carriage moves rearwards and the scraper 8 ( Figure 1) levels off said clay 66 as shown in Figure 3A.
  • the punches 21 are then lowered into the position shown in Figure 3B, which obviously depends on the layer of glaze to be deposited on the clay 66, this lowering being done before the masking element 6 halts (temporarily) in the position shown in said Figure 3B, with the apertures 7 concentric with the cavities 20.
  • the loader 78 slides towards the pusher 11, with simultaneous depositing of the glaze 77 on the clay 66 and inside the apertures 7, said loader 78 then halting at the front end of the masking element 6.
  • the lower punches 21 are then lowered against the base 10 ( Figures 1, 3C), after which the carriage is moved to the end of its rearward path, to the right in Figure 1, the scraper 9 thus cleaning the upper face of the die 2.
  • the pressing stage then takes place, followed by the raising of the punches 21 to the level of the die 2, after which the cycle is repeated identically.
  • the loader 78 can undergo either half of its travel per loading cycle or total outward/return travel, depending on the capacity of the loader 78 and the quantity of glaze to be deposited on the clay.
  • the loader 78 can arrive below the hopper 70 (to receive glaze) either every two loading cycles or every loading cycle.
  • the relative pressure-glazed tiles 67 comprise a uniform layer of glaze 77 or mixture of glazes.
  • said shapes of said partial (or incomplete) layers can obviously vary, as can their thickness, which is determined by the thickness of the masking element 6 and the extent to which the punches 21 are lowered before the glaze 77 is deposited on the clay 66 ( Figure 2B).
  • said masking element represents a sort of silk-screen stencil for powdered glaze.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Casting Devices For Molds (AREA)
EP91200186A 1990-02-26 1991-01-30 Schieber zur Zweistufenbefüllung von Keramikformen, insbesondere zur Herstellung druckglasierter Keramikplatten Expired - Lifetime EP0444730B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT46815A IT1239147B (it) 1990-02-26 1990-02-26 Carrello a doppio caricamento per stampi ceramici in genere, tipicamente per la fabbricazione di piastrelle pressosmaltate.
IT4681590 1990-02-26

Publications (3)

Publication Number Publication Date
EP0444730A2 true EP0444730A2 (de) 1991-09-04
EP0444730A3 EP0444730A3 (en) 1991-11-27
EP0444730B1 EP0444730B1 (de) 1996-06-05

Family

ID=11259095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91200186A Expired - Lifetime EP0444730B1 (de) 1990-02-26 1991-01-30 Schieber zur Zweistufenbefüllung von Keramikformen, insbesondere zur Herstellung druckglasierter Keramikplatten

Country Status (5)

Country Link
EP (1) EP0444730B1 (de)
AT (1) ATE138844T1 (de)
DE (1) DE69119932T2 (de)
ES (1) ES2087959T3 (de)
IT (1) IT1239147B (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569070A1 (de) * 1992-05-07 1993-11-10 MASS S.p.A. Form zum Herstellen von keramischen Gegenständen, insbesondere von druckglasierten Fliesen und Vorrichtung zum Füllen dieser Form
EP0822044A1 (de) * 1996-07-30 1998-02-04 Ceramiche Dual S.r.l. Vorrichtung zur Füllung der Formen in Pressen zur Herstellung von keramischen druckglasierten Fliesen und Ausführungsmittel dafür
EP0693352A3 (de) * 1994-07-21 1998-04-15 L.B. Engineering S.R.L. Vorrichtung zur Füllung eines Füllwagens für Formkasten während der Herstellung von keramischen Platten
EP0858873A1 (de) * 1997-02-18 1998-08-19 Gruppo Concorde S.p.A. Vorrichtung zu Pressen von Pulvern, insbesondere Vorrichtung und Verfahren zum Herstellen von keramischen Fliesen
EP0860256A1 (de) * 1997-02-21 1998-08-26 SACMI COOPERATIVA MECCANICI IMOLA S.c.r.l. Verfahren zum Fördern keramischen Pulvers aus einer Entnahmestelle nach einem Benutzungsgebiet
EP0873832A1 (de) * 1997-04-23 1998-10-28 SACMI COOPERATIVA MECCANICI IMOLA S.c.r.l. Vorrichtung zum Pressen von keramischen Fliesen aus zwei Schichten
EP0894591A1 (de) * 1997-08-01 1999-02-03 Ariostea S.p.A. Vorrichtung zur Füllung der Formen in Pressen zur Herstellung von Fliesen und Ausführungsmittel dafür
EP0909621A1 (de) * 1997-10-16 1999-04-21 Catia Corti Verfahren zum Formen und Dekorieren ungebrannter keramischer Fliesenrohlinge vor dem Pressen und Vorrichtung zur Durchführung des Verfahrens
EP0909622A1 (de) * 1997-10-14 1999-04-21 L.B. Officine Meccaniche S.p.A. Vorrichtung und Verfahren zum Füllen eines Pressformhohlraumes mit einem pulverförmigen oder körnigen Material bei der Herstellung von keramischen Fliesen
EP1323510A1 (de) * 2001-12-20 2003-07-02 L.B. Officine Meccaniche S.p.A. Schieber zur Zweistufenbefüllung für Keramik
EP1358983B1 (de) * 2002-04-29 2008-12-31 Gruppo Concorde S.p.A. Vorrichtung zum Füllen der Pressformen für die Herstellung von Fliesen
WO2015118196A1 (es) 2014-02-07 2015-08-13 Kerajet, S.A. Dispositivo método y máquina de deposición de sólidos pulverulentos o granulados sobre una superficie

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1280079B1 (it) * 1995-07-20 1997-12-29 Emilceramica S P A Carrello a doppio caricamento per stampi ceramici per la formatura di piastrelle smaltopressate e monopressate a piu' strati.
ES2562342A1 (es) * 2014-09-03 2016-03-03 Asitec Ceramic, S.L. Bancada de la unidad de alimentación de una prensa de conformación de piezas cerámicas de recubrimiento

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1076013B (de) * 1958-12-13 1960-02-18 Rheinische Gehwegplattenfabrik Einrichtung an Fertigungsmaschinen fuer Gehwegplatten u. dgl.
DE1182572B (de) * 1960-05-14 1964-11-26 Albertwerke Klingenberg Fuellvorrichtung an Pressen zur Herstellung mehrfarbiger keramischer Platten, wie sogenannter geflammter Fliesen od. dgl.
NL6707021A (nl) * 1967-05-22 1968-11-25 Mosa Porselein & Tegelfab Werkwijze en inrichting voor het persen van meerlaagstegels
DE1946989C3 (de) * 1969-09-17 1974-11-28 Laeis-Werke Ag, 5500 Trier Füllvorrichtung für die Herstellung von Zweischichtfliesen in Pressen
NL8701601A (nl) * 1987-07-08 1989-02-01 Mosa Koninkl Bv Set vloertegels, werkwijze voor het vervaardigen van een vloertegel behorende tot de set en inrichting voor het uitvoeren van de werkwijze.

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0569070A1 (de) * 1992-05-07 1993-11-10 MASS S.p.A. Form zum Herstellen von keramischen Gegenständen, insbesondere von druckglasierten Fliesen und Vorrichtung zum Füllen dieser Form
EP0693352A3 (de) * 1994-07-21 1998-04-15 L.B. Engineering S.R.L. Vorrichtung zur Füllung eines Füllwagens für Formkasten während der Herstellung von keramischen Platten
EP0822044A1 (de) * 1996-07-30 1998-02-04 Ceramiche Dual S.r.l. Vorrichtung zur Füllung der Formen in Pressen zur Herstellung von keramischen druckglasierten Fliesen und Ausführungsmittel dafür
EP0858873A1 (de) * 1997-02-18 1998-08-19 Gruppo Concorde S.p.A. Vorrichtung zu Pressen von Pulvern, insbesondere Vorrichtung und Verfahren zum Herstellen von keramischen Fliesen
EP0860256A1 (de) * 1997-02-21 1998-08-26 SACMI COOPERATIVA MECCANICI IMOLA S.c.r.l. Verfahren zum Fördern keramischen Pulvers aus einer Entnahmestelle nach einem Benutzungsgebiet
EP0873832A1 (de) * 1997-04-23 1998-10-28 SACMI COOPERATIVA MECCANICI IMOLA S.c.r.l. Vorrichtung zum Pressen von keramischen Fliesen aus zwei Schichten
EP0894591A1 (de) * 1997-08-01 1999-02-03 Ariostea S.p.A. Vorrichtung zur Füllung der Formen in Pressen zur Herstellung von Fliesen und Ausführungsmittel dafür
EP0909622A1 (de) * 1997-10-14 1999-04-21 L.B. Officine Meccaniche S.p.A. Vorrichtung und Verfahren zum Füllen eines Pressformhohlraumes mit einem pulverförmigen oder körnigen Material bei der Herstellung von keramischen Fliesen
EP0909621A1 (de) * 1997-10-16 1999-04-21 Catia Corti Verfahren zum Formen und Dekorieren ungebrannter keramischer Fliesenrohlinge vor dem Pressen und Vorrichtung zur Durchführung des Verfahrens
EP1323510A1 (de) * 2001-12-20 2003-07-02 L.B. Officine Meccaniche S.p.A. Schieber zur Zweistufenbefüllung für Keramik
EP1358983B1 (de) * 2002-04-29 2008-12-31 Gruppo Concorde S.p.A. Vorrichtung zum Füllen der Pressformen für die Herstellung von Fliesen
WO2015118196A1 (es) 2014-02-07 2015-08-13 Kerajet, S.A. Dispositivo método y máquina de deposición de sólidos pulverulentos o granulados sobre una superficie

Also Published As

Publication number Publication date
ATE138844T1 (de) 1996-06-15
EP0444730B1 (de) 1996-06-05
DE69119932D1 (de) 1996-07-11
IT9046815A1 (it) 1991-08-26
ES2087959T3 (es) 1996-08-01
DE69119932T2 (de) 1996-10-24
IT1239147B (it) 1993-09-28
IT9046815A0 (it) 1990-02-26
EP0444730A3 (en) 1991-11-27

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