EP1403018A2 - Verfahren und Vorrichtung zur Herstellung von Mittel für die Herstellung von dekorativen Reliefs in keramischen Fliesen - Google Patents

Verfahren und Vorrichtung zur Herstellung von Mittel für die Herstellung von dekorativen Reliefs in keramischen Fliesen Download PDF

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Publication number
EP1403018A2
EP1403018A2 EP03013430A EP03013430A EP1403018A2 EP 1403018 A2 EP1403018 A2 EP 1403018A2 EP 03013430 A EP03013430 A EP 03013430A EP 03013430 A EP03013430 A EP 03013430A EP 1403018 A2 EP1403018 A2 EP 1403018A2
Authority
EP
European Patent Office
Prior art keywords
plate
punch
die
tiles
press
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
EP03013430A
Other languages
English (en)
French (fr)
Other versions
EP1403018B1 (de
EP1403018A3 (de
Inventor
Tosi Sergio
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.)
TOSI SpA
Original Assignee
Serigrafica Tosi Srl
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 Serigrafica Tosi Srl filed Critical Serigrafica Tosi Srl
Publication of EP1403018A2 publication Critical patent/EP1403018A2/de
Publication of EP1403018A3 publication Critical patent/EP1403018A3/de
Application granted granted Critical
Publication of EP1403018B1 publication Critical patent/EP1403018B1/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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
    • B28B7/366—Replaceable lining plates for press mould
    • 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
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
    • B28B7/346—Manufacture of 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
    • B28B7/00—Moulds; Cores; Mandrels
    • B28B7/36—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article
    • B28B7/364—Linings or coatings, e.g. removable, absorbent linings, permanent anti-stick coatings; Linings becoming a non-permanent layer of the moulded article of plastic material or rubber

Definitions

  • the invention relates to manufacturing means for making decoration patterns on ceramic tiles.
  • the ceramic industry produces tiles having different decorative embossed patterns, for example drawings or geometrical figures, or tiles with particular surface roughness or other means for obtaining the desired aesthetic effect.
  • the embossed decorations are obtained on the tiles during press-forming, by a press die having a pattern to be reproduced in negative.
  • the preparation of the production die is preceded by an experimental step which includes:
  • the production die can be prepared, otherwise, if the judgment is negative, the whole procedure is repeated, beginning from a new aluminum plate.
  • the aluminum plate is used to transfer the pattern impression to the production die, by a known technique called "heat gumming", which includes substantially applying layers of gummy material to the surface, which is intended to push against the tile.
  • Such layers are obviously complementary to embossment made on the aluminium plate.
  • the gum parts of the die wear out, therefore, they must be reconstructed at pre-set times, in order to maintain the tiles within the fixed quality standards.
  • the object of the present invention is to propose a method for manufacturing means for obtaining embossed decorations on ceramic tiles, by which test samples can be obtained in a rapid and cheap way, avoiding the drawbacks resulting from the use of the master machined in the aluminum plate.
  • Another object of the present invention is to manufacture the above means in such a way that they allow to start the production immediately after the final decoration has been obtained.
  • a further object of the present invention is to avoid gumming of the die, thus avoiding the subsequent drawbacks and costs.
  • a still further object of the present invention is to propose an apparatus, which carries out the proposed method, and which is simple to manufacture in relation to the obtained results.
  • the method being subject of the present invention proposes manufacturing of means for obtaining embossed decorations on ceramic tiles, indicated with reference numeral 1 in the above drawings.
  • the above means are obtained by a series of steps including a first proof-evaluation step, during which the final decoration pattern, to be embossed in the tiles later on, is obtained.
  • the first operation of the above mentioned first step includes machining the decoration pattern die M on a plate 3 of natural or synthetic material, for example gummy material, by using a laser beam controlled by a computer (not shown), in which the decoration pattern to be obtained is stored in digital form ( Figure 1).
  • the second operation is mounting (by removable fastening) the plate 3 on a punch 40 of a press 4, with the die M turned toward the upper surface 1a of a tile 1 situated below, onto which the punch 40 is intended to push.
  • the third operation is press-forming a series of sample tiles 1 and evaluating the obtained result.
  • the production starts immediately, using the plate 3 already mounted on the punch 40 as a die.
  • the plate is removed from the punch, the digital pattern stored in the electronic processor is modified and then, the first three operations described above are repeated, preferably on a new plate, until the desired result is obtained.
  • the punch 40 carries, fastened removably thereon, the plate 3 forming the die M of the final decoration, therefore it is possible to pass directly to the production without further operations.
  • the die M of the plate 3 mounted on the punch 40 is worn out and must be replaced.
  • a new die M is machined on another plate 3, using the same laser technique described previously.
  • the plate 3 can be applied on a metal foil; the so obtained a metal foil - plate group is extremely flexible and is applied onto the outer surface of a roller, in order to optimize the cutting of the plate 3 by laser beam, due to the rotation of the roller on its axis.
  • the metal foil - plate 3 group is fastened to a support of known type, which stabilizes the group (e.g. metallic support, net support, etc.).
  • the support is removably fastened to and centered with respect to the punch 40 by known systems, e.g. magnetic or mechanical.
  • the material of which the plate is made can be sensitive to ultraviolet radiation, in this way, the hardness of the plate can be adjusted in relation to the time of exposition to the radiation.
  • the proof-evaluation step for preparing the final decoration die is much quicker and cheaper, thus it saves time and costs necessary for cutting the aluminium sheet.
  • the laser technique for machining the sheet gummy material allows complicated patterns of high definition to be obtained without considerable cost increase.
  • Another advantage derives from the complete elimination of the die gumming operations, described previously and necessary with the currently used technique.
  • a further advantage results from the fact that the substitution of the gummy plate does not require the removal of the punch from the press and it is a rapid operation, which can be performed even by non-specialized operators.
  • the plate 3 machining operation can be obtained also by other techniques different from the one based on the use of a laser beam.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Laser Beam Processing (AREA)
  • Printing Methods (AREA)
  • Finishing Walls (AREA)
EP03013430A 2002-06-24 2003-06-23 Verfahren und Vorrichtung zur Herstellung von Mittel für die Herstellung von dekorativen Reliefs in keramischen Fliesen Expired - Lifetime EP1403018B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20020402 2002-06-24
IT2002BO000402A ITBO20020402A1 (it) 2002-06-24 2002-06-24 Metodo per la realizzazione di decori in rilievo su piastrelle ceramiche ed apparecchiatura che attua tale metodo

Publications (3)

Publication Number Publication Date
EP1403018A2 true EP1403018A2 (de) 2004-03-31
EP1403018A3 EP1403018A3 (de) 2005-07-20
EP1403018B1 EP1403018B1 (de) 2008-05-28

Family

ID=11440248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03013430A Expired - Lifetime EP1403018B1 (de) 2002-06-24 2003-06-23 Verfahren und Vorrichtung zur Herstellung von Mittel für die Herstellung von dekorativen Reliefs in keramischen Fliesen

Country Status (5)

Country Link
EP (1) EP1403018B1 (de)
AT (1) ATE396854T1 (de)
DE (1) DE60321284D1 (de)
ES (1) ES2307854T3 (de)
IT (1) ITBO20020402A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2261004A1 (es) * 2004-05-11 2006-11-01 Abissal Invest S L Procedimiento y sistema para la fabricacion de baldosas ceramicas mediante la aplicacion y deteccion de marcas visisbles.
EP1640129A3 (de) * 2004-09-21 2007-05-02 Tosi S.p.A. Verfahren zur Herstellung von Reliefs auf keramischen Fliesen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5922260A (en) * 1995-03-22 1999-07-13 Rossi; Pellegrino Method of making die set for forming ceramic tiles
IT1310821B1 (it) * 1999-09-08 2002-02-22 Sergio Tosi Metodo per realizzare matrici utilizzabili per effettuare ladecorazione di piastrelle ceramiche.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2261004A1 (es) * 2004-05-11 2006-11-01 Abissal Invest S L Procedimiento y sistema para la fabricacion de baldosas ceramicas mediante la aplicacion y deteccion de marcas visisbles.
ES2261004B1 (es) * 2004-05-11 2007-11-16 Abissal Invest, S.L. Procedimiento y sistema para la fabricacion de baldosas ceramicas mediante la aplicacion y deteccion de marcas visisbles.
EP1640129A3 (de) * 2004-09-21 2007-05-02 Tosi S.p.A. Verfahren zur Herstellung von Reliefs auf keramischen Fliesen

Also Published As

Publication number Publication date
ATE396854T1 (de) 2008-06-15
EP1403018B1 (de) 2008-05-28
ITBO20020402A0 (it) 2002-06-24
EP1403018A3 (de) 2005-07-20
ES2307854T3 (es) 2008-12-01
DE60321284D1 (de) 2008-07-10
ITBO20020402A1 (it) 2003-12-24

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