EP1454727A2 - Vorrichtung zum Auftragen von Pulver und/oder Granulaten auf Gegenständen, insbesondere keramischen Fliesen, zu ihrer Dekoration. - Google Patents

Vorrichtung zum Auftragen von Pulver und/oder Granulaten auf Gegenständen, insbesondere keramischen Fliesen, zu ihrer Dekoration. Download PDF

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Publication number
EP1454727A2
EP1454727A2 EP04004969A EP04004969A EP1454727A2 EP 1454727 A2 EP1454727 A2 EP 1454727A2 EP 04004969 A EP04004969 A EP 04004969A EP 04004969 A EP04004969 A EP 04004969A EP 1454727 A2 EP1454727 A2 EP 1454727A2
Authority
EP
European Patent Office
Prior art keywords
conveying belt
powdery
recesses
granular products
decoration
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Withdrawn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
EP04004969A
Other languages
English (en)
French (fr)
Other versions
EP1454727A3 (de
Inventor
Roberto Schianchi
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.)
Tsc SpA
Original Assignee
Tsc 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 Tsc SpA filed Critical Tsc SpA
Publication of EP1454727A2 publication Critical patent/EP1454727A2/de
Publication of EP1454727A3 publication Critical patent/EP1454727A3/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C19/00—Apparatus specially adapted for applying particulate materials to surfaces
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/001—Applying decorations on shaped articles, e.g. by painting
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/044—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers with glaze or engobe or enamel or varnish
    • 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
    • B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
    • B28B11/04—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers
    • B28B11/047—Apparatus or processes for treating or working the shaped or preshaped articles for coating or applying engobing layers by pooring, e.g. curtain coating

Definitions

  • the present invention relates to the application of powdery and/or granular products on corresponding articles.
  • the present invention relates a device for the application of powdery and/or granular products onto ceramic tiles and products, for decoration thereof.
  • the reference will be made to decoration of ceramic tiles by powdery and/or granular products.
  • powdery and/or granular products are usually applied to ceramic supports, having a film of enamel, by conveying belts including elastomeric materials, preferably antistatic, oriented substantially horizontal.
  • the surface of the elastomeric belts, mounted on corresponding driving and driven wheels, features a plurality of recesses, advantageously made by laser technique and defining the desired decoration.
  • Figure 1 is a schematic and particularly enlarged, longitudinal section view of a conveying belt according to prior art, in which differently shaped recesses can be distinguished.
  • each recess depends strictly on the granules size of the powdery and/or granular products, while the depth thereof defines the decoration tonality.
  • the powdery and/or granular products are released onto the conveying belt in a feeding station, in order to fill the recesses.
  • the powdery and/or granular products contained in the recesses drop, due to the gravity, onto the surface of the ceramic supports carried and moved by suitable conveying means, so as to define a prefixed decoration.
  • the drop of the powdery and/or granular products is also facilitated by a slight enlargement of the recesses sections caused by elastic elongation, to which the belt is subjected during its passage on the driven wheel.
  • a doctor blade is usually situated between the feeding station and the application station, very close to the elastomeric belt, for spreading the powdery and/or granular products released onto the belt and for removing the powder in excess, which does not enter the recesses.
  • a big drawback of conveying belts according to prior art derives from the fact that it is difficult for the powdery and/or granular products to slide on the elastomeric belts, which increases the difficulty to fill the recesses and increases the wear and tear of the elastomeric belts.
  • the object of the present invention is to avoid the above mentioned drawbacks by proposing a device for application of powdery and/or granular products onto corresponding articles, in particular ceramic tiles, for the decoration of the latter, which ensures high productivity standards in any working conditions and a particularly reduced wear of the same device.
  • Another object of the present invention is to propose a device, which can optimize the filling of recesses and which facilitates the sliding of the powdery and/or granular products on the device, thus preventing any breaking phenomenon, which could change the products granule size.
  • a further object of the present invention is to propose a device, which is obtained by a simple technical solution, extremely functional and reliable, relatively cheap and which ensures an easy and rapid installation and maintenance.
  • the general reference numeral 1 indicates the proposed device for application of powdery and/or granular products, for example enamel, onto corresponding articles 2, in particular ceramic tiles, for the decoration of the latter.
  • the device 1 includes a conveying belt 3, mounted in a continuous loop on support means, which maintain the conveying belt 3 under tension and move it.
  • the conveying belt 3 features a plurality of recesses 3a, which define the design of the prefixed decoration ( Figures 2, 3).
  • the conveying belt 3 is made of elastomeric material and is antistatic, according to the known needs of the technical field concerned.
  • the recesses 3a are aimed at receiving, in a feeding station 4, powdery and/or granular enamel and release it, in an application station 40, onto the tiles 2, in order to decorate them.
  • the feeding station 4, as well as the application station 40, are advantageously situated near the conveying belt 3, for example in accordance with the configuration protected by the Italian Patent Application No. BO2003A 000032 filed by the same Applicant.
  • the conveying belt 3 has a plurality of connecting grooves 30, open at top, which connect longitudinally pairs of recesses 3a, to facilitate introduction of the powdery and/or granular enamel into each of the recesses 3a.
  • the connecting grooves 30 connect longitudinally each recess 3a with the previous one and with the subsequent one (see Figure 4).
  • the support means on which the conveying belt 3 in mounted, include a driving wheel 5, for moving the conveying belt 3, and a return-holding means, which, together with the driving wheel 5, keep the belt under tension.
  • the return-holding means include a plate 6, over which the conveying belt 3 slides.
  • the plate 6 has preferably a shape of a bill, whose tip portion 6a is turned toward the tiles 2 to be decorated (see the above mentioned Italian Patent Application No. BO2003A 000032 filed by the same Applicant).
  • the conveying belt 3 turns around the tip portion 6a of the plate 6, so that the powdery and/or granular enamel, present inside the recesses 3a, drops onto the tiles 2, due to the gravity.
  • the line W connecting the rotation axis of the driving wheel 5 with the symmetry axis of the bill 6, may be inclined in any direction, in a range of 0° to 90°, with respect to a horizontal plane.
  • the conveying belt 3 is inclined, as a mere, not limiting example, in such a way that the connecting line W is substantially vertical, that is slightly inclined with respect to a vertical plane.
  • the powdery and/or granular enamel is released, in known way e.g. by gravity, on the underlying run of the conveying belt 3, thus filling the recesses 3a and the connecting grooves 30.
  • the powdery and/or granular enamel is distributed on the conveying belt 3 and its exceeding part, that is the part, which does not enter the recesses 3a, nor the connecting grooves 30, is removed from the conveying belt 3 in a way known to those skilled in the field, not shown, since it does not pertain to the subject of the invention.
  • the conveying belt 3 turns around the tip portion 6a of the plate 6, so that the powdery and/or granular enamel present in the recesses 3a drops, due to the gravity, onto the tiles 2, moved by the conveying means 17, so as to define the prefixed decoration.
  • the conveying means 17 are operated in step relation with the conveying belt 3 and can be operated either stepwise or continuously.
  • the drop of the powdery and/or granular enamel is facilitated by the slight transversal dilation of the recesses 3a caused by the elastic elongation, to which the conveying belt 3 is subjected during its passage at the tip portion of the plate 6.
  • the transversal dilation allows to reduce considerably the cross-section of the connecting grooves 30, so much that they even almost disappear, while at the same time the recesses 3a become larger.
  • the definition of the prefixed decoration identified by a series of suitably situated recesses 3a, is thus maintained and the connecting grooves 30 have only the prevailing task of facilitating the filling of the recesses 3a with the powdery and/or granular enamel released by the feeding station 4.
  • the connecting grooves 30 optimize the filling of the recesses 3a and, at the same time, facilitate the longitudinal sliding of the powdery and/or granular enamel on the conveying belt 3.
  • the return-holding means including, for example, a driving wheel 5 and a plate 6, are slightly inclined with respect to a vertical plane.
  • this does not exclude other possible inclinations, in a range of 0° to 90° with respect to a horizontal plane.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Belt Conveyors (AREA)
EP04004969A 2003-03-04 2004-03-03 Vorrichtung zum Auftragen von Pulver und/oder Granulaten auf Gegenständen, insbesondere keramischen Fliesen, zu ihrer Dekoration. Withdrawn EP1454727A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITBO20030114 ITBO20030114A1 (it) 2003-03-04 2003-03-04 Dispositivo alimentatore per l'applicazione di prodotti
ITBO20030114 2003-11-06

Publications (2)

Publication Number Publication Date
EP1454727A2 true EP1454727A2 (de) 2004-09-08
EP1454727A3 EP1454727A3 (de) 2005-12-07

Family

ID=32800655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04004969A Withdrawn EP1454727A3 (de) 2003-03-04 2004-03-03 Vorrichtung zum Auftragen von Pulver und/oder Granulaten auf Gegenständen, insbesondere keramischen Fliesen, zu ihrer Dekoration.

Country Status (2)

Country Link
EP (1) EP1454727A3 (de)
IT (1) ITBO20030114A1 (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0822043A1 (de) * 1996-07-29 1998-02-04 Syfal S.r.l. Rotationsmaschine zum Glasieren, insbesondere für das Glasieren von keramischen Platten
EP0927687A2 (de) * 1997-12-23 1999-07-07 Maris Algeri Verfahren und Vorrichtung zur Übertragung von körnigem Material
EP1170104A2 (de) * 1996-11-22 2002-01-09 Ronflette S.A. Herstellung von pulverförmigen Material
WO2003053643A1 (en) * 2001-12-21 2003-07-03 Sergio Sighinolfi Apparatus and method for decorating objects

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0822043A1 (de) * 1996-07-29 1998-02-04 Syfal S.r.l. Rotationsmaschine zum Glasieren, insbesondere für das Glasieren von keramischen Platten
EP1170104A2 (de) * 1996-11-22 2002-01-09 Ronflette S.A. Herstellung von pulverförmigen Material
EP0927687A2 (de) * 1997-12-23 1999-07-07 Maris Algeri Verfahren und Vorrichtung zur Übertragung von körnigem Material
WO2003053643A1 (en) * 2001-12-21 2003-07-03 Sergio Sighinolfi Apparatus and method for decorating objects

Also Published As

Publication number Publication date
ITBO20030114A1 (it) 2004-09-05
EP1454727A3 (de) 2005-12-07

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