EP1459891A1 - Verfahren zum Herstellen von eine Rolle mit einer Aufnamematrix und mit diesem Verfahren hergestellte Rolle - Google Patents

Verfahren zum Herstellen von eine Rolle mit einer Aufnamematrix und mit diesem Verfahren hergestellte Rolle Download PDF

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Publication number
EP1459891A1
EP1459891A1 EP04006516A EP04006516A EP1459891A1 EP 1459891 A1 EP1459891 A1 EP 1459891A1 EP 04006516 A EP04006516 A EP 04006516A EP 04006516 A EP04006516 A EP 04006516A EP 1459891 A1 EP1459891 A1 EP 1459891A1
Authority
EP
European Patent Office
Prior art keywords
roll
wear layer
layer
elastic layer
tubular cylinder
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Withdrawn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
EP04006516A
Other languages
English (en)
French (fr)
Inventor
Sergio Tosi
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 S.P.A.
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 EP1459891A1 publication Critical patent/EP1459891A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/11—Gravure cylinders

Definitions

  • the present invention relates to apparatuses for application of enamel decorations on articles, with particular reference to the ceramic tiles.
  • the upper surface of the tiles can be decorated, in order to obtain different aesthetic effects.
  • the used techniques include the traditional screenprinting, with flat and cylindrical screens, and others, one of which uses a roll, wrapped peripherally with a layer of elastomeric material and having, on its outer surface, a matrix formed by small receptacles, suitably arranged, in relation to quantity and dimension, according to decoration design.
  • the roll is set in touch with the surface to decorate; the forward movement of the tile and rotation of the roll are adjusted, so as to avoid friction.
  • the receptacles Before reaching the tile, the receptacles are filled with an enamel, which will be released on the tile when the receptacles touch the surface to decorate.
  • the roll includes a bearing structure, typically made of aluminium, to which the elastomeric layer is irremovably joined, and is aimed at:
  • the object of the present invention is to propose a method, which allows to obtain a cheaper roll with respect to known ones, without reducing in a minimum way the roll functionality and the quality of obtained results.
  • Another object of the present invention is to propose a method, which gives the possibility to regenerate completely the worn rolls, at a lower cost.
  • a further object of the present invention is to propose a roll shaped in such a way, that the materials composing it can be easily recycled at the end of their working cycle, without expensive preliminary separation operations.
  • a roll for the decoration of tiles and its method of manufacture are defined by the features of the independent method and product claims respectively, preferred features being defined in the dependent claims.
  • the reference letter R indicates the roll obtained by the proposed method, taken as a whole.
  • the method includes two series of operations, the first of which is aimed at obtaining the roll R, and the second one at the recycling of the layer of bouncing putty having the decoration formed in it.
  • the first series of operations includes:
  • the so obtained roll R is aimed at being mounted, horizontally, on a known decorating machine, not shown, which applies decorations and enamels to articles, in particular ceramic tiles.
  • the rigid tubular base SR is made preferably of a composite material, similar to the synthetic material of the elastic layer SE and to the bouncing putty of the to-wear layer SU.
  • the elastic deformability of the elastic layer SE can be either constant through the whole thickness, or can vary with the inner part softer and the outer part more compact, for example with a particular hollow conformation 5 of the inner part, as shown in Figure 2.
  • the receptacles matrix 100 includes, in known way, a plurality of receptacles 110, suitably distributed in accordance with quantity, dimension and according to the decoration design.
  • the tubular cylinder 1 has a notch 11, which, after the assembly, receives a reference peg 33 made in the relative grooved wheel 30, so that the correct angular position of the two pieces is ensured.
  • the coupling between the extension 31 and the tubular cylinder 1 is made with a slight interference, so that the assembly is stable; however, it is possible to use, if necessary, removable fastening means (not shown, for example, screw) between the extension and cylinder.
  • the to-wear layer SU gives the tubular cylinder 1 an outer diameter almost equal to the diameter of the grooved wheels 30, as it is due to known functional needs, already mentioned in the introductory note.
  • the above described roll R carries out its task in the same way as the rolls of known type; when the surface to wear of the layer SU reaches the limit and the receptacles matrix 100 is no more efficient, the to-wear layer SU is completely regenerated with a second series of operations of the method, including:
  • Cutting and removal of the used-up to-wear layer SU are carried out, in this order, in known way, that is, by cutting the wear layer SU in a direction parallel to the axis of the tubular cylinder 1, from one end to the other, and then peeled off from the elastic layer SE, situated below.
  • the subsequent application of a new to-wear layer onto the elastic layer SE is obtained preferably by introducing the tubular cylinder 1 into a suitable mould, intended for injection of the bouncing putty aimed at forming a new to-wear layer SU.
  • the similarity of the materials allows a good adherence of the new to-wear layer SU onto the elastic layer SE, situated below, however, it does not prevent a subsequent peeling off separation.
  • the roll R can be disassembled allows to manage the production without necessarily having many complete rolls, because it is undoubtedly more practical to substitute only one part subjected to wear and tear, which can be regenerated in an easier way, after the grooved wheels have been removed.
  • the collecting is simple, because no preliminary operation of material separation is needed.
  • the proposed roll allows to obtain the objects mentioned in the introductory note, with appreciable advantages with respect to the known rolls, from the point of view of economy, managing and disposal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP04006516A 2003-03-20 2004-03-18 Verfahren zum Herstellen von eine Rolle mit einer Aufnamematrix und mit diesem Verfahren hergestellte Rolle Withdrawn EP1459891A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20030148 ITBO20030148A1 (it) 2003-03-20 2003-03-20 Metodo per la realizzazione di un rullo con matrice alveolata
ITBO20030148 2003-03-20

Publications (1)

Publication Number Publication Date
EP1459891A1 true EP1459891A1 (de) 2004-09-22

Family

ID=32800664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04006516A Withdrawn EP1459891A1 (de) 2003-03-20 2004-03-18 Verfahren zum Herstellen von eine Rolle mit einer Aufnamematrix und mit diesem Verfahren hergestellte Rolle

Country Status (2)

Country Link
EP (1) EP1459891A1 (de)
IT (1) ITBO20030148A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1535732A1 (de) * 2003-11-26 2005-06-01 Tosi S.p.A. Verfahren zum Herstellen von Zylindern zum Bedrucken von keramischen Gegenständen und mit diesem Verfahren hergestellte Zylinder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0677364A1 (de) * 1994-03-29 1995-10-18 SYFAL S.r.l. Rotationsmaschine zum Glasieren und Dekorieren, insbesondere für keramische Platten
DE19918432A1 (de) * 1999-04-23 2000-10-26 Saueressig Gmbh & Co Dehnschicht aus kompressiblem Material
DE19939775A1 (de) * 1999-08-21 2001-03-01 Siegwerk Druckfarben Gmbh & Co Druckzylinder, Verfahren zu seiner Herstellung und seine Verwendung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0677364A1 (de) * 1994-03-29 1995-10-18 SYFAL S.r.l. Rotationsmaschine zum Glasieren und Dekorieren, insbesondere für keramische Platten
DE19918432A1 (de) * 1999-04-23 2000-10-26 Saueressig Gmbh & Co Dehnschicht aus kompressiblem Material
DE19939775A1 (de) * 1999-08-21 2001-03-01 Siegwerk Druckfarben Gmbh & Co Druckzylinder, Verfahren zu seiner Herstellung und seine Verwendung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1535732A1 (de) * 2003-11-26 2005-06-01 Tosi S.p.A. Verfahren zum Herstellen von Zylindern zum Bedrucken von keramischen Gegenständen und mit diesem Verfahren hergestellte Zylinder

Also Published As

Publication number Publication date
ITBO20030148A1 (it) 2004-09-21

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