EP1157832A1 - Druckvorrichtung für Siebdruckmaschinen. - Google Patents

Druckvorrichtung für Siebdruckmaschinen. Download PDF

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Publication number
EP1157832A1
EP1157832A1 EP00110347A EP00110347A EP1157832A1 EP 1157832 A1 EP1157832 A1 EP 1157832A1 EP 00110347 A EP00110347 A EP 00110347A EP 00110347 A EP00110347 A EP 00110347A EP 1157832 A1 EP1157832 A1 EP 1157832A1
Authority
EP
European Patent Office
Prior art keywords
drum
blade
screens
impression device
distributor unit
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Withdrawn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
EP00110347A
Other languages
English (en)
French (fr)
Inventor
Nickolas Bizzio
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.)
TECNO-ITALIA Srl
Original Assignee
TECNO-ITALIA 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 TECNO-ITALIA Srl filed Critical TECNO-ITALIA Srl
Priority to EP00110347A priority Critical patent/EP1157832A1/de
Publication of EP1157832A1 publication Critical patent/EP1157832A1/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Withdrawn legal-status Critical Current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
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0804—Machines for printing sheets
    • B41F15/0809—Machines for printing sheets with cylindrical or belt-like screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/14—Details
    • B41F15/40—Inking units
    • B41F15/42—Inking units comprising squeegees or doctors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2215/00—Screen printing machines
    • B41P2215/50—Screen printing machines for particular purposes
    • B41P2215/56—Screen printing machines for particular purposes for printing ceramic tiles

Definitions

  • This invention relates to an impression device for so-called continuous silk-screen printing machines, particularly for ceramic tiles.
  • Silk-screen printing machines of the continuous decoration type consist essentially of a frame which supports a headpiece supporting one or more screens which are either directly shaped into a drum or are mounted on a drum-shaped support structure, the drum being positioned above a conveying line along which the products to be decorated continuously advance.
  • the axis of said drum is horizontal and lies transverse to the direction in which the conveying line for the elements to be decorated advances.
  • Means are provided to set the drum position in a vertical direction and in the direction of the drum axis in order to adjust the contact between the screen and the surfaces to be decorated.
  • a motor unit activated by signals originating from a photoelectric cell or an equivalent sensing member, to synchronize the drum rotation with the passage of the products to be decorated along the underlying conveyor.
  • Continuous silk-screen printing machines are especially used in the ceramics sector for producing tiles, they operating with satisfactory efficiency and functional capacity.
  • a further problem lies in the fact that the image transferred to the surfaces to be decorated using drums with a single direction of rotation has a degree of precision which can differ from one screen to another of the same drum.
  • small screen mounting inaccuracies are inevitable, so that the image produced by one screen can be slightly displaced in the axial direction of the drum or be slightly rotated in the horizontal plane relative to that of another screen of the same drum, leading to evident problems especially if the same tiles, whether unfired or fired, have to be silk-screen printed several times to obtain the required decoration.
  • An object of this invention is to solve the aforesaid problems presented by known drum impression devices for silk-screen printing machines.
  • an impression device for so-called continuous silk-screen printing machines comprising a screen-carrying drum, in the interior of which there is mounted a blade distributor unit for enamels, characterised in that the drum is motor-driven to rotate in both directions of rotation through arcs of predefinable width, the blade distributor unit being supported such that its position can be adjusted vertically within the drum to at least three predefined levels, namely an inactive first position in which it is raised from said screens, a decorating second position in which it is in sliding contact with the screens, and an intermediate third position in which it spreadingly dispenses the enamel onto the screens.
  • an impression device 1 for so-called continuous silk-screen printing machines comprises a drum 2 carrying screens 3 and having a blade distributor unit 4 for enamels S mounted in its interior.
  • the drum 2 is motor-driven (by relative means of known type, not shown) to rotate in both directions of rotation (as indicated by the arrows A and B) through arcs of predetermined width.
  • the blade distributor unit 4 is supported inside the drum and can be positioned vertically, by relative support and positioning means 8, at at least three predefined levels, namely an inactive first position, indicated by q 1 ( Figure 1c), in which the blade distributor unit 4 is raised from the screens 3, a decorating second position ( Figures 1a and 1b) in which it is in sliding contact with the screens 3, and an intermediate third position, indicated by q 2 ( Figure 1d), in which it spreadingly dispenses the enamel S onto the screens 3.
  • q 1 inactive first position
  • Figures 1a and 1b in which it is in sliding contact with the screens 3
  • q 2 Figure 1d
  • the blade distributor unit 4 consists of at least one crosspiece 6 which is lowerly provided with a blade 7 and is supported on the frame of the silk-screen printing machine by way of a series of parallel hydraulically operated actuator cylinders 8.
  • the blade distributor unit 24 consists of two parallel crosspieces 26a and 26b provided lowerly with respective blades 27a, 27b which are alternately moved into their utilization position.
  • the two blades 27a and 27b have different moduli of elasticity because one blade, namely the blade 27a in this specific case, is used for the actual decoration and is hence more rigid, whereas the other, namely the blade 27b in this case, has merely to spread the enamel S over the screens, and hence is less rigid.
  • each tile 9 arriving on the conveyor 10 is sensed by a sensor 11 (normally a photoelectric cell) which feeds a pulse to the motor unit to synchronously rotate the drum 2 such that the speed at which the lateral surface of this latter moves is equal to the traversing speed of the conveyor 10.
  • Said rotation commences ( Figure 1a) when the front edge of the tile 9 coincides with the corresponding edge of the appropriate screen 3a of the drum 2. This latter then undergoes a rotation corresponding to the surface extension of the tile 9 in the direction in which the conveyor 10 moves, with the result that the upper face of the tile 9 is decorated, after which the drum 2 reverses its direction of rotation (arrow B of Figure 1d) to return to its starting position.
  • the blade 27a impresses the decoration through the screen 23a during the first arc of rotation of the drum 22 by pressing against this latter (stage between Figure 2a and Figure 2b), then, before the rotation of the drum 22 is reversed, the cylinders 28 rotate the unit 4 about the hinge point 32 (shown only in Figure 2a for simplicity) so as to deviate the blade 27a ( Figure 2b), however the blade 27b also moves simultaneously rigid therewith to become positioned on the vertical diameter of the drum 22 but slightly raised in order to be able to spread the enamel S over the same screen 23a during the return arc of rotation of the drum 22.
  • each blade 47a and 47b is operated independently by its own cylinder 48a and 48b, to be raised and lowered in the aforedescribed operating manner, to alternate in applying the decoration to the tiles 9 (blade 47a) and in spreading the enamel S (blade 47B).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
EP00110347A 2000-05-15 2000-05-15 Druckvorrichtung für Siebdruckmaschinen. Withdrawn EP1157832A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00110347A EP1157832A1 (de) 2000-05-15 2000-05-15 Druckvorrichtung für Siebdruckmaschinen.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00110347A EP1157832A1 (de) 2000-05-15 2000-05-15 Druckvorrichtung für Siebdruckmaschinen.

Publications (1)

Publication Number Publication Date
EP1157832A1 true EP1157832A1 (de) 2001-11-28

Family

ID=8168719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00110347A Withdrawn EP1157832A1 (de) 2000-05-15 2000-05-15 Druckvorrichtung für Siebdruckmaschinen.

Country Status (1)

Country Link
EP (1) EP1157832A1 (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1266757A2 (de) * 2001-05-29 2002-12-18 Tecno - Europa S.R.L. Vorrichtung zur Dekoration von keramischen Gegenständen
EP1336480A1 (de) 2002-02-18 2003-08-20 Gruppo Concorde S.p.A. Verfahren und Vorrichtung zur Dekoration durch Siebdruck von keramischen Fliesen oder dergleichen
EP1219418A3 (de) * 2000-12-15 2003-11-05 IRI S.r.l. Maschine zum kontinuierlichen Dekorieren von Produktoberflächen , insbesondere keramischen Fliesen
EP2014466A3 (de) * 2007-06-14 2010-12-15 Komori Corporation Verfahren und Vorrichtung zur Positionseinstellung des Flüssigkeitsübertragungselements einer rotierenden Flüssigkeitsbeschichtungsmaschine für eine Schablonendruckplatte
EP1946925A3 (de) * 2007-01-22 2010-12-22 Komori Corporation Einstellungsverfahren der Position eines Elementes zur Farbübertragung und Vorrichtung einer rotierenden Schablonendruckpresse
DE102012002848A1 (de) * 2012-02-13 2013-08-14 Brigitta Elbers Rotationssiebdruckmaschine
WO2014012700A1 (de) * 2012-07-16 2014-01-23 Saint-Gobain Glass France Siebdruckvorrichtung zum auftragen einer farbe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909644A1 (de) * 1997-10-10 1999-04-21 Maker di Vincenzi, Maurizio System zur Dekoration eines Gegenstandes
EP0974458A1 (de) * 1998-07-18 2000-01-26 Rob Borgmann Siebdruckverfahren zum Bedrucken von ebenflächigen Gegenständen, insbesondere Glasscheiben, mit einem Dekor und Vorrichtung zur Durchführung des Verfahrens

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0909644A1 (de) * 1997-10-10 1999-04-21 Maker di Vincenzi, Maurizio System zur Dekoration eines Gegenstandes
EP0974458A1 (de) * 1998-07-18 2000-01-26 Rob Borgmann Siebdruckverfahren zum Bedrucken von ebenflächigen Gegenständen, insbesondere Glasscheiben, mit einem Dekor und Vorrichtung zur Durchführung des Verfahrens

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1219418A3 (de) * 2000-12-15 2003-11-05 IRI S.r.l. Maschine zum kontinuierlichen Dekorieren von Produktoberflächen , insbesondere keramischen Fliesen
EP1266757A3 (de) * 2001-05-29 2003-02-19 Tecno - Europa S.R.L. Vorrichtung zur Dekoration von keramischen Gegenständen
EP1266757A2 (de) * 2001-05-29 2002-12-18 Tecno - Europa S.R.L. Vorrichtung zur Dekoration von keramischen Gegenständen
EP1336480A1 (de) 2002-02-18 2003-08-20 Gruppo Concorde S.p.A. Verfahren und Vorrichtung zur Dekoration durch Siebdruck von keramischen Fliesen oder dergleichen
US8714083B2 (en) 2007-01-22 2014-05-06 Komori Corporation Ink transfer member position adjusting method and apparatus of rotary stencil printing press
EP1946925A3 (de) * 2007-01-22 2010-12-22 Komori Corporation Einstellungsverfahren der Position eines Elementes zur Farbübertragung und Vorrichtung einer rotierenden Schablonendruckpresse
EP2014466A3 (de) * 2007-06-14 2010-12-15 Komori Corporation Verfahren und Vorrichtung zur Positionseinstellung des Flüssigkeitsübertragungselements einer rotierenden Flüssigkeitsbeschichtungsmaschine für eine Schablonendruckplatte
DE102012002848A1 (de) * 2012-02-13 2013-08-14 Brigitta Elbers Rotationssiebdruckmaschine
DE102012002848B4 (de) * 2012-02-13 2015-03-26 Brigitta Elbers Rotationssiebdruckmaschine
WO2014012700A1 (de) * 2012-07-16 2014-01-23 Saint-Gobain Glass France Siebdruckvorrichtung zum auftragen einer farbe
CN104470722A (zh) * 2012-07-16 2015-03-25 法国圣戈班玻璃厂 用于施用墨的丝网印刷装置
CN104470722B (zh) * 2012-07-16 2016-05-25 法国圣戈班玻璃厂 用于施用墨的丝网印刷装置
US9757937B2 (en) 2012-07-16 2017-09-12 Saint-Gobain Glass France Screen printing device for applying an ink

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