• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Machine and procedure of digital printing on glass (1) mono-passed. The machine incorporates a support structure (2) for fixing the glass sheet (1), a printing bridge (3) movable during printing along the longitudinal axis "x" of the support structure (2) supporting means of digital printing (33) with printing bars (100, 100 ', 100 ") with a succession of print heads (10, 10', 10"), and supporting a scanner (32) of data capture of defect positions (x '', y ''). The procedure is executed by moving the printing bridge (3) on the fixed glass sheet with simultaneous printing of the print heads (10, 10 ', 10 ") and detection of the position data of the defects (x'). ', y' '), and further displacement of the bridge on the fixed glass with selective printing of the print heads on the defect positions (x' ', y' '). (Machine-translation by Google Translate, not legally binding)
    公开号:ES2618301A1
    申请号:ES201531665
    申请日:2015-11-17
    公开日:2017-06-21
    发明作者:Juan Javier FERNANDEZ VAZQUEZ；Manuel RAMOS QUIROGA
    申请人:Teclass Sl；
    IPC主号:
    专利说明:

    DIGITAL PRINTING MACHINE AND PROCEDURE ON MONO-PASSED GLASS

    OBJECT OF THE INVENTION
     5
    The object of the present invention consists of a method and a digital ink printing machine on mono-pass glass, which employs digital printheads, and which can also act as a multi-pass for the correction of print defects detected after printing, or for making more complex prints.

    BACKGROUND OF THE INVENTION
     fifteen
    In the state of the art of digital printing machines on glass, multi-pass machines comprising a printing carriage that travels along a bridge located on the "X" passage of a sheet of glass that is often used are frequent. it places and displaces 20 on a table (see patent ES2.337.829T3), and said bridge (and therefore the displacement "Y" of the carriage being printed) transverse or perpendicular to the passage "X" of the glass to be printed as described in The patent ES2,396,532. Technology is also known in which the bridge moves in the "X" direction (with "Y" transverse displacement of the print carriage) while the glass is held in a fixed position. In these cases, there is a print car that has to print the glass in several passes moving said carriage along the width of the bridge that supports it.

    These machines are commonly called multi-pass, or "multipass", since, in general, they print as follows: the glass is placed in the printing position and the bridge moves in the "X" direction to the glass ( or the glass moves "X" on the table 5 until the part to be printed under the bridge), the carriage begins to move across the width "Y" of the bridge while printing on the glass (making a pass on the glass), then the glass, or the bridge, moves in the "X" direction 10 the width of the print head and the carriage returns to print in the "Y" direction and so on until printing is finished on the glass to be printed. There are variants of multi-pass printing as described in EP2631077. fifteen

    In short, the multi-pass procedure is a printing method by which the head makes several passes depending on the resolution that is to be achieved to make the printing on the glass. The 20 machines that execute this multi-pass procedure usually consist of a print carriage with several print heads, of dimensions smaller than the maximum format to be printed on the glass sheet and, therefore, the only way to cover the maximum format It is 25 making multiple passes on the glass sheet or substrate to be printed. This number of passes, as already indicated, will be greater or lesser depending on the resolution that is intended to be achieved.
     30
    Multi-pass digital printing machines have economic advantages when using small print carts with few print heads. Also, when executing multiple passes, they may be able to hide a print defect caused by a head, since the failure of the first pass can be covered by a second pass (see patent document US2014 / 0204426). Also, when executing multiple passes, they may be able to hide a print defect caused by a head, since the failure of the first pass can be covered by a second pass (see patent document US2014 / 0204426).

    On the contrary, these machines, having to make several print passes of the print carriage, the printing time is extended proportionally to the number of passes to be executed. 10

    Current printing machines that, on the other hand, execute single-pass digital printing procedures in which the glass to be printed moves under printing heads usually have a series of drawbacks:


     5
    DESCRIPTION OF THE INVENTION

    The machine and method object of the present invention overcomes the disadvantages of the multi-pass and mono-pass printing machines described above.

    The mono-pass machine object of the present invention allows several passes to correct any defect detected after a mono-pass or to print any design that, due to its complexity, cannot be carried out in mono-pass. It acts as a mixed printing machine. When it acts as a mono-pass (or “singlepass”), the glass sheet to be printed is placed in the printing position by automatic positioning. A printing bridge makes a pass (in the "X" direction) above the glass sheet, which is placed statically, printing all the glass upon completion of the pass. For this, the bridge incorporates along its width printing means covering the width of glass, or glass sheet, to be printed.

    The advantage of this new machine and mono-pass procedure is its high productivity, since it can print a glass sheet several times faster than the 30 classic multi-pass machines. Another advantage is that you can print more precisely and accurately than current mono-pass printing machines by being the static and positioned glass in an exactly known position.

    When a defect has occurred during mono-pass printing in the machine object of the present invention, since the static glass is held in the printing position, said defects can be detected by means of graphic assistance connected to a unit central processing and control of the printing machine that can order the bridge to make additional high precision passes on the glass to correct the defects detected. These graphic assistance means can be of the optical type installed in the printing machine (for example in the printing bridge) that analyze the printed image and detect defects.

    Therefore, once the mono-pass of printing has been carried out, or even a mono-pass of defect correction, the means of graphic assistance makes a pass (for example a scanner located on the bridge that will give a scan pass) on the printed glass, and if it does not detect defects (the scanner can take high-precision photographs of the printed glass) with respect to the reference or pattern to be printed, it activates the means of ejecting the glass from the machine. This operation can be semi-automated, so that the expulsion of the printed glass must wait for a confirmation from the operator, in case it is decided to opt for a manual inspection. That is, it can be an operator who, when detecting a defect visually, activates a new printing pass before authorizing the evacuation or expulsion of the glass from the machine, thus correcting the defect.

    Therefore, the printing machine object of the present invention is a mixed printing machine that can work in single-pass or multi-pass mode if any detected defect needs to be corrected or a design of certain complexity or precision needs to be printed that requires the machine to work in two or more passes. With this machine you get a number of advantages: 10

     fifteen
     30
    For example, the industries of manufacturers of automotive glass in series or glass for white goods (oven doors, kitchen countertops, etc.) can be converted, with this machine, to digital printing gaining in flexibility.

    More specifically, the digital single-pass glass printing machine object of the present invention 5 presents: a support structure with automatic positioning means for positioning and fixing a glass sheet during printing and with ejection means of the glass sheet and also with means for transporting the glass when printing is not taking place, and also a movable printing bridge in the "X" direction located on said support structures, and digital printing means of the glass, or sheet of glass, supported by said bridge. fifteen

    The digital printing means are composed of parallel bars with printheads, each bar preferably occupying the entire effective width of the bridge (i.e., the part of the bridge that is over 20 areas of the support structure in which one can place a glass sheet), and each print bar having all its heads connected to an ink supply of the same color. Therefore, if a succession of print bars is installed, they are installed in parallel. The print heads of the print media make a controlled print, by a central processing and control unit of the machine, continuously on the glass when said bridge moves ("X") on the static glass fixed 30 by the means for fixing the glass during printing.

    The digital printing machine object of the present invention incorporates means of graphic assistance, connected to the central processing and control unit, of automatic detection and capture of the data of the positions of the defects (X ", Y") of printing 5 on the glass sheet, and sending said data to a central data processing and control unit. These graphic assistance means can be, for example, optical scanners supported by the bridge. The machine can also incorporate artificial vision means 10 for capturing and automatically sending the data of the outer perimeter (X, f (X)) of the glass sheet, said data being sent to the central processing and control unit of data.
     fifteen
    The central data processing and control unit of the machine is composed of at least one module with the position data of the pattern (X ', Y') or figure to be printed and its colors (C '(X', Y ')) , a module with the position data of the printing defects (X ", Y") and their corresponding colors (C "(X", Y ")) (which correspond to the colors of the pattern (C" (X ", Y") = (C '(X', Y '))) on the glass sheet (1), and optionally a module for receiving the data of said artificial vision means of automatic data capture. outer perimeter of the glass sheet, a data processing software that arrives at the central unit of data processing and control and determination of the printhead position information on the coordinates of printing (X ', Y '), optionally a perimeter recognition module of the glass sheet to avoid any printing outside the co glass sheet contours, and a module for sending the print signals to the print media heads based on the data ((X ', Y'), (X ", Y")) of the pattern and colors (C ', C ”) to be printed on the glass sheet.
     5
    The digital printing process object of the present invention, with the machine object of the present invention, presents a stage of feeding, positioning and fixing the glass in the printing plane, a step of complete and continuous movement of the printing bridge on the fixed glass, with simultaneous printing of the print heads that print a pre-selected pattern for each glass to be printed, only printing the print bar heads that are placed on the glass (1) based on the data of color (C '(X', Y ')) and position (X', Y ') of the figure to be printed supplied by the central processing unit. The information that the printheads have to print can also be provided by the file to be printed, which can be sent by the customer making the order.

    In addition, the procedure can be carried out with a step of detecting defect position data (X ", Y") of printing on the glass sheet (for example, by scanning by a scanner located on the printing bridge ) at the end of each print run made, followed by at least one stage of complete and continuous displacement of the printing bridge on the fixed glass, with simultaneous and selective printing of the print heads that print on the defects (X ", Y ”) Detected in the glass and according to the corresponding color data (C" (X ", Y")).

    The machine object of the present invention can incorporate, in addition to the printheads, in addition, 5 devices for drying the ink printed on the glass surface with technology, for example, laser and / or infrared lamp. Said drying devices are controlled by the central processing and control unit, which is configured by associating the print signal of each head with an activation signal of the drying medium associated with said head.

    The machine object of the present invention can employ a series of common components in machines such as motors, electronics, electricity and pneumatics known in the state of the art. When using commercial inkheads that also use commercial printing inks (for example, the printhead can be of the DROP-ON-20 DEMAND type of technology) lowers the maintenance and operation costs of the machine, providing great flexibility in the Supply of key components and cost savings.

    If the printheads and lasers 25 and / or drying infrared lamps are placed together, it is achieved that the laser and / or infrared lamp covers and dries the entire printing width on each pass of the bridge on the glass surface . Thus, the heads deposit the ink and immediately, and simultaneously, the laser beam and / or the infrared lamp dry the deposited ink.

    The method object of the invention, therefore, also allows a single stage of digital printing (mono-pass) with simultaneous drying of the printing by means of the laser and / or simultaneous infrared lamp fixed to each printhead, of correction of 5 defects through multi-passes of the bridge and printing of very complex designs in multi-pass, and optionally also a stage of final tempering of the glass with vitrification of the ink applied.
     10

    BRIEF DESCRIPTION OF THE DRAWINGS

    The following figures are included in order to facilitate the understanding of the invention:




    PREFERRED EMBODIMENT OF THE INVENTION
     25
    A preferred embodiment of the machine object of the present invention is detailed below.

    Figure 1 shows a digital printing machine on single-pass glass with a support structure (2) with automatic positioning means for positioning and fixing (not shown) of a glass sheet (1) and with means of transport, (4) by belts, of the glass sheet when printing is not taking place. The printing bridge (3) moves over the guides (31) supported on the sides of the support structure (2) on the one sheet of glass (1) and with transport means, (4) by means of belts, of the glass sheet when printing is not occurring. The printing bridge (3) moves over the guides (31) supported on the sides of the support structure (2) on the one sheet of glass (1) and with transport means, (4) by means of belts, of the glass sheet when printing is not occurring. The printing bridge (3) moves over the guides (31) supported on the sides of the support structure (2) in the
     10
    As can be seen in figure 2, the bridge (3) supports digital printing means (33) of the glass sheet (1) with six print bars (for example references 100, 100 'and 100 "in figure 2 ) parallel at the bottom, which occupy the entire effective width (between the lateral guides (31)) of the bridge (3) Each bar has a succession of printheads (for example references 10, 10 'and 10 "in Figure 2) incorporating DROP-ON-DEMAND technology.
     twenty
    权利要求:
    Claims (7)
    [1]


     5
    1. Mono-pass digital glass printing machine (1) characterized by comprising:
    to. a support structure (2) comprising means configured for positioning and automatic fixation of a glass sheet (1) during printing, and means configured for transport (4) of said glass sheet,
    b. a printing bridge (3) configured to move along the longitudinal axis "X" of the support structure (2) and located on said support structure, and
    C. digital printing means (33) of the glass sheet 20, supported by said bridge (3) configured to print on the glass sheet (1) when said bridge (3) travels on the glass sheet fixed to said support structure (2); said printing means comprising at least one print bar (100) said print bar comprising a succession of print heads (10), and said succession of print heads (10) of each print bar (100) being 30 Powered by ink of the same color.

    [2]
    2. Digital printing machine according to claim 1, characterized in that said digital printing means (33) further comprise radiation emission devices for drying the ink.
     5
    [3]
    3. Digital printing machine according to the preceding claim, characterized in that said drying radiation emission devices are laser technology or infrared lamps.
     10
    [4]
    4. Digital printing machine according to any of the preceding claims, characterized in that said printheads (10,10 ’) are of the DROP-ON-DEMAND type of technology.
      fifteen
    [5]
    5. Digital printing machine, according to any of the preceding claims, characterized in that it is configured to carry out a continuously controlled printing on the glass sheet (1) during the linear and continuous displacement of the bridge (3), and 20 to be understood also:
    to. Graphic assistance means (33) configured to automatically detect and capture defect position data (X ", Y") of printing on the glass sheet (1) and configured to send said data, and
    b. A central data processing and control unit comprising: 30

    i. A module configured to receive and store the position data of the pattern (X ’, Y’) and its colors (C ’(X’, Y ’)) to be printed on the glass sheet (1),
    ii. A module configured to receive and store the position data of the 5 printing defects (X ", Y") and their corresponding colors (C "(X", Y ")) on the glass sheet (1),
    iii. A module configured to send 10 print signals to the print heads (10.10 ', 10 ") of the print media (33) based on the position data (X', Y ') of the pattern, defect data (X ”, Y”) and color data (C '(X', Y '), C ”(X", Y ")) to be printed on the 15 glass sheet (1), and
    iv. A software configured to process said data from said modules.
     twenty
    [6]
    6. Digital printing machine according to claims 2 and 5, characterized in that said module configured to send print signals is also configured to send activation signals of said ink drying radiation emission devices.

    [7]
    7. Digital printing machine according to any of claims 5 or 6, characterized in that it also comprises artificial vision means configured to automatically capture the data of the outer perimeter (X, f (X)) of the glass sheet ( 1) and configured for sending said data (X, f (X)) to the central processing and control unit, and because said central processing and control unit further comprises a module configured to receive said data from the outer perimeter of The glass sheet.

     fifteen
     30

     fifteen
     twenty
    类似技术:
    公开号 | 公开日 | 专利标题
    ES2618301B1|2018-04-12|DIGITAL PRINTING MACHINE AND PROCEDURE ON MONO-PASSED GLASS
    JP5334902B2|2013-11-06|Printing apparatus and camera position adjusting method
    KR20080015248A|2008-02-19|Array type inkjet printer and method for determinating nozzle condition thereof
    JP5368019B2|2013-12-18|Printer apparatus and printing method therefor
    US20200122456A1|2020-04-23|Machine and method for single-pass digital printing on glass
    JP2011167897A|2011-09-01|Image forming device
    KR20180016487A|2018-02-14|Tablet printing device and tablet printing method
    JP5516263B2|2014-06-11|Recording device
    JP6525752B2|2019-06-05|Printing apparatus and inspection method
    JP2005512857A|2005-05-12|Print media and method with integrated image locator
    US20070126838A1|2007-06-07|Recording medium conveyance amount measurement method and inkjet recording apparatus
    ES2664112A1|2018-04-18|MACHINE AND DIGITAL PRINTING PROCEDURE ON MONO-PASSED GLASS WITH GLASS DISPLACEMENT |
    JP2011073144A|2011-04-14|Printer
    JP2011131499A|2011-07-07|Recorder
    JP2014226911A|2014-12-08|Method of inclination inspection for ink jet head and method for suppressing density unevenness
    JP2007176166A|2007-07-12|Measuring method of recording medium conveyance amount and inkjet recording apparatus
    JP2011156733A|2011-08-18|Ink-jet recorder and method of adjusting recording position
    JP2000190482A|2000-07-11|Ink jet image-forming apparatus and its automatic registration method
    US10052888B1|2018-08-21|System and method for detecting defective ultraviolet radiating light emitting diodes in a printer
    JP4993790B2|2012-08-08|Image processing method and image processing apparatus
    JP6379908B2|2018-08-29|Nozzle inspection apparatus, image forming apparatus, and nozzle inspection method
    JP2010172802A|2010-08-12|Droplet discharging apparatus and method of inspecting the same
    ES1241704U|2020-02-20|Detection system, compensation of faulty nozzle failures and correction of non-uniformity in inkjet printing and printer incorporating it. |
    US10467773B2|2019-11-05|In-line failure detection of a curing light source of a three dimensional object printer
    JP2008278068A|2008-11-13|Image reader, image read method, and recording device for image read
    同族专利:
    公开号 | 公开日
    US20180333953A1|2018-11-22|
    ES2618301B1|2018-04-12|
    EP3421250A1|2019-01-02|
    EP3421250A4|2020-03-18|
    MA47291A|2019-11-27|
    WO2017085341A1|2017-05-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US6755518B2|2001-08-30|2004-06-29|L&P Property Management Company|Method and apparatus for ink jet printing on rigid panels|
    US20060203028A1|2005-03-10|2006-09-14|Manish Agarwal|Apparatus and method for print quality control|
    DE102006038750A1|2006-08-17|2008-02-21|Robert Bürkle GmbH|Rigid workpiece e.g. furniture panel, printing device, has inkjet nozzles distributed in row over entire working width, which over stretches workpiece transverse to direction of relative movement between printing device and printing station|
    EP2039524A3|2007-09-18|2010-01-20|Seiko Epson Corporation|Liquid ejecting apparatus and method for forming raster line|
    KR100987828B1|2008-04-17|2010-10-13|주식회사 나래나노텍|A Complex System Having Ink-Jet Printing Function and Testing Function, and An Ink-Jet Printing Apparatus Having the Same|
    GB2464758B|2008-10-28|2012-11-07|Inca Digital Printers Ltd|Substrate movement in a printer|
    ES2354667B1|2009-09-07|2012-01-25|Kerajet S.A.|PRINTING DEVICE THROUGH INK INJECTION TECHNOLOGY.|
    EP2436527A3|2010-06-14|2017-10-25|Tecglass SL|Machine and method for digital ink-jet glass printing with simultaneous drying|
    JP5480765B2|2010-09-24|2014-04-23|理想科学工業株式会社|Ink discharge amount adjusting device for each color of line type ink jet printer|
    ES2404729B1|2011-02-17|2014-05-19|Tecglass Sl|MACHINE AND PROCEDURE FOR DIGITAL PRINTING WITH INK ON GLASS WITH SIMULTANEOUS DRYING OF THE INK BY RADIATION EMISSION.|
    JP5728702B2|2011-03-31|2015-06-03|株式会社Ｓｃｒｅｅｎホールディングス|Filter manufacturing apparatus and filter manufacturing method|
    US20140204426A1|2011-11-02|2014-07-24|Dip-Tech Ltd.|Method and apparatus for correcting a printed image|
    EP2626209B1|2012-02-12|2018-04-11|Baumer Inspection GmbH|Method and device for detecting malfunctions of nozzles of an ink-jet printer|
    US20140168303A1|2012-12-19|2014-06-19|Vistaprint Technologies Limited|Print head alignment systems and methods for increasing print resolution|
    US20150138266A1|2013-11-21|2015-05-21|Samuel Chen|Inkjet printing method and apparatus using a redundant printhead|IT201800020215A1|2018-12-19|2020-06-19|Keraglass Ind S R L|INK JET PRINTING MACHINE ON PLATES|
    DE102019105629B3|2019-03-06|2020-04-16|Koenig & Bauer Ag|Printing machine with an inkjet system and with a transport device|
    EP3954540A1|2020-08-11|2022-02-16|Schott AG|Method for printing an image on a substrate and corresponding system|
    法律状态:
    2018-04-12| FG2A| Definitive protection|Ref document number: 2618301 Country of ref document: ES Kind code of ref document: B1 Effective date: 20180412 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201531665A|ES2618301B1|2015-11-17|2015-11-17|DIGITAL PRINTING MACHINE AND PROCEDURE ON MONO-PASSED GLASS|ES201531665A| ES2618301B1|2015-11-17|2015-11-17|DIGITAL PRINTING MACHINE AND PROCEDURE ON MONO-PASSED GLASS|
    US15/777,050| US20180333953A1|2015-11-17|2016-11-08|Machine and method for single-pass digital printing on glass|
    MA047291A| MA47291A|2015-11-17|2016-11-08|MACHINE AND PROCESS FOR DIGITAL PRINTING ON GLASS IN ONE PASS|
    PCT/ES2016/070794| WO2017085341A1|2015-11-17|2016-11-08|Machine and method for single-pass digital printing on glass|
    EP16865823.5A| EP3421250A4|2015-11-17|2016-11-08|Machine and method for single-pass digital printing on glass|
    [返回顶部]