EP1234666A2 - Dispositif matriciel en nid d'abeille pour la décoration d'articles par contact - Google Patents

Dispositif matriciel en nid d'abeille pour la décoration d'articles par contact Download PDF

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Publication number
EP1234666A2
EP1234666A2 EP02002694A EP02002694A EP1234666A2 EP 1234666 A2 EP1234666 A2 EP 1234666A2 EP 02002694 A EP02002694 A EP 02002694A EP 02002694 A EP02002694 A EP 02002694A EP 1234666 A2 EP1234666 A2 EP 1234666A2
Authority
EP
European Patent Office
Prior art keywords
decorating
working areas
articles
hardness
contact
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Withdrawn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
EP02002694A
Other languages
German (de)
English (en)
Other versions
EP1234666A3 (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.)
SERIGRAFICA TOSI Srl
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 EP1234666A2 publication Critical patent/EP1234666A2/fr
Publication of EP1234666A3 publication Critical patent/EP1234666A3/fr
Withdrawn legal-status Critical Current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
    • B41F9/00—Rotary intaglio printing presses
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/24—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles
    • B41F17/26—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing on flat surfaces of polyhedral articles by rolling contact

Definitions

  • the present invention relates to the technical field concerned with decoration of articles, such as ceramic tiles, vases, bottles and others, by contact application of dyes.
  • rotating machines which transfer enamel onto the tiles by means of a rotating cylinder device.
  • the rotating machines of this kind convey tiles to be decorated-enameled by a conveying line, which is formed by a belt conveyor.
  • a cylinder situated above the conveying line, having a decorating-enameling matrix made in its outer surface.
  • the matrix cylinder is driven into rotation with a peripheral speed equal to the speed of the conveying line forward movement.
  • the decorating-enameling matrix is obtained by a plurality of recesses made on a sleeve of elastic material placed around the outer surface of the cylinder.
  • the above mentioned sleeve is made of a homogenous layer of bouncing putty, therefore its hardness and thickness are constant along the entire extension of the surface.
  • the layer of bouncing putty features a series of circular recesses, which receive small quantities of enamel and deliver it onto the tiles.
  • the recesses are obtained by known embossing laser techniques and their dimensions change in relation to the pattern to be obtained.
  • the enamel is fed to the honeycombed matrix of the rotating cylinder by a delivering nozzle connected with a container.
  • Rotation of the cylinder causes the of the enamel to the tiles situated below due to the direct contact therewith.
  • honeycomb matrix rolls on the tiles surface without rubbing.
  • the elastic deformability of the sleeve layer on which the honeycomb matrix is made prevents any damages to the tiles during the decoration-enameling.
  • the layer of bouncing putty has a predetermined hardness, chosen in relation to the characteristics of the image to be reproduced on the articles to decorate.
  • the material reaction changes in relation to the hardness of the matrix layer, and consequently, also the characteristics of the decoration change.
  • the object of the present invention is to solve the above mentioned problem of the prior art by proposing a device for decorating articles by contact transferring of dyes, which allows to obtain suitably variable decorations starting from a basic pattern.
  • Another object of the present invention is to propose a decorating device, whose structure is very simple and functional, and which is cheap.
  • the decorating device 10 realized according to the present invention, will be now described with reference to the above Figures, and with particular reference to its application to a rotating machine for decorating ceramic tiles by contact transferring of enamel.
  • the decorating device 10 can be applied not only to machines for decorating-enameling of ceramic tiles, but the same inventive idea can be applied to machines for decorating different articles, not necessarily flat, such as vases or bottles.
  • Figure 1 shows schematically the above mentioned machine for decorating-enameling of ceramic tiles 2.
  • the machine includes a rotating cylinder 4, arranged horizontally, with the decorating device 10 associated to its outer surface.
  • the decorating machine includes means 1 for conveying the tiles 2, which support the latter and bring them into contact with the lateral surface of the cylinder 4, without rubbing against it, and synchronously with the rotation of the cylinder.
  • the conveying means 1 include a conveying belt, moving in the direction indicated with the arrow A and carrying the tiles 2, suitably spaced apart, on its upper run.
  • the dyes in this case suitable types of enamel, are fed to the decorating device 10 by a delivering nozzle 7, according to known techniques.
  • a scraper member 8 of known type is set in touch with the lateral surface of the cylinder 4 to scrap the latter in order to remove exceeding enamel therefrom.
  • the decorating device is formed by a sleeve, indicated generally with reference numeral 10, which surrounds the rotating cylinder 4.
  • a honeycomb matrix is made in the sleeve 10 (see Figure 1a), according to known techniques, for decorating-enameling articles 2 to be decorated, in the given example ceramic tiles.
  • the sleeve 10 features a series of working areas 11, regularly spaced apart, and including each one a layer 5 of a transferring material, e.g. elastic, and in particular bouncing putty.
  • a transferring material e.g. elastic, and in particular bouncing putty.
  • the layer 5 of bouncing putty features circular recesses 6, which receive the enamel to be delivered onto the tiles 2.
  • each working area 11 correspond substantially to the dimensions of a single tile 2 being decorated-enameled and the hardness of each working area 11 is different from the other areas, as will be specified later.
  • the working areas 11 are incorporated into a strip 12 of inactive containment material, e.g. silicone.
  • a supporting strip 13 of a suitable binding material is applied to the containment strip 12 and the working areas 11 are incorporated thereinto.
  • the sleeve 10 is advantageously manufactured in a spread out configuration, as seen in Figure 3, and is then applied around the peripheral surface of the cylinder 4 by known techniques.
  • the different hardness of the layer of bouncing putty in each working area 11 makes the decoration of each tile correspondingly different, starting from a single basic decorative pattern.
  • the differently decorated tiles can be used in combination to obtain particular decorative effects of the whole.
  • the number of changed decorations obtained in the above way is equal to the number of working areas 11, two or more, made in the sleeve 10.
  • the sleeve 10 can be preferably obtained by means of a drum device 14 shown in Figure 5.
  • the device 14 includes substantially a first external cylindrical jacket 15 and a second inner cylindrical jacket 16, which are coaxial and which define, therebetween, an interspace receiving the bouncing putty.
  • a plurality of removable radial separators 17 are situated inside the interspace, regularly spaced apart, which define a corresponding plurality of cylindrical sections 18, which form the above mentioned working areas.
  • the bouncing putty is injected into each cylindrical section 18 by respective nozzles 19 situated on a head of the drum device 14.
  • each cylindrical section 18 receives the bouncing putty of different hardness.
  • the separators 17 are removed, so as to join the material of different sections and form the sleeve 10.
  • Time of removal of the separators 17 is suitably determined during the formation of the cylindrical sections 18, so that the adjacent: areas of two sections can be bound to each other.
  • the different working areas 11 can be arranged one beside another, very close to each other, on a flat surface, e.g. a bowl of predetermined dimensions.
  • transversal separators are placed inside the bowl, to define areas, whose dimensions and positions correspond to those of the working areas 11.
  • the decorating device achieve the object to obtain tiles with suitably varied decorations, starting from a basic pattern, by changing only the hardness of different working areas 11.
  • the working areas 11 can have different hardness inside, in particular the hardness can change gradually through the thickness of the layer 5 of deformable material, e.g. it can be harder in the external part, or it can change along the longitudinal and/or transversal extension of its surface, e.g. from one end to the other of each single area.
  • the hardness can be also changed by applying different layers of different hardness.
  • the structure of the machine can be different than the one described above.
  • the conveying means 1 must be different in order to suit to different needs of articles to be supported and conveyed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Eyeglasses (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
  • Decoration By Transfer Pictures (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Specific Conveyance Elements (AREA)
EP02002694A 2001-02-08 2002-02-06 Dispositif matriciel en nid d'abeille pour la décoration d'articles par contact Withdrawn EP1234666A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2001BO000070A ITBO20010070A1 (it) 2001-02-08 2001-02-08 Dispositivo a matrice alveolata per la decorazione per contatto di articoli
ITBO010070 2001-02-08

Publications (2)

Publication Number Publication Date
EP1234666A2 true EP1234666A2 (fr) 2002-08-28
EP1234666A3 EP1234666A3 (fr) 2003-08-27

Family

ID=11439077

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002694A Withdrawn EP1234666A3 (fr) 2001-02-08 2002-02-06 Dispositif matriciel en nid d'abeille pour la décoration d'articles par contact

Country Status (2)

Country Link
EP (1) EP1234666A3 (fr)
IT (1) ITBO20010070A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1864773A3 (fr) * 2006-06-09 2010-12-01 Tecno-Europa S.r.l. Procédé et dispositif de fabrication de produits céramiques
CN108248200A (zh) * 2016-12-29 2018-07-06 上海运安制版有限公司 一种用于瓷砖印刷的辊筒及其制备工艺

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1268910B1 (it) * 1994-02-28 1997-03-13 Ragazzini Corrado Decoratrice per piastrelle ceramiche

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1864773A3 (fr) * 2006-06-09 2010-12-01 Tecno-Europa S.r.l. Procédé et dispositif de fabrication de produits céramiques
CN108248200A (zh) * 2016-12-29 2018-07-06 上海运安制版有限公司 一种用于瓷砖印刷的辊筒及其制备工艺

Also Published As

Publication number Publication date
ITBO20010070A1 (it) 2002-08-08
ITBO20010070A0 (it) 2001-02-08
EP1234666A3 (fr) 2003-08-27

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