• 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:
    Vacuum system for securing parts in printing machines, comprising a perforated surface printing table (2) and in relation thereto a vacuum system for holding the parts to be printed comprising a drawer (8) connected to a system of suction and provided with a perforated wall in relation to the surface of the printing table (2), going in said drawer (8) side panels that close vertically inside it, which are displaceable to adjust the separation between them in relation to the width of the pieces to be printed. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2548352A1
    申请号:ES201430353
    申请日:2014-03-14
    公开日:2015-10-15
    发明作者:Jesus Francisco Barberan Latorre
    申请人:Jesus Francisco Barberan Latorre；
    IPC主号:
    专利说明:

    DESCRIPTION

    Vacuum system for clamping parts in printing machines.

    Technical sector 5

    The present invention is related to printing processes on rigid or semi-rigid surfaces, by means of ink spray, proposing a vacuum application system to hold the pieces to be printed, on the tables of the printing machines, so that said vacuum does not influence on the inks that are projected for printing, allowing the automatic adaptation to different sizes of the pieces to be printed.

    State of the art

    For the printing on rigid or semi-rigid surfaces, the contact technique 15 by means of printing rollers is known, as well as the technique without contact by means of ink projection heads, the latter being of greater perfection and quality, in addition to allowing greater possibilities of application, since the colors of the prints are obtained by combining inks that are projected individually.
     twenty
    It is also known to hold the pieces intended to be printed, on the table of the printing machines, by means of a vacuum application through the table itself, which can be fixed or formed by a conveyor belt, determining for it the table of the printers with a perforated surface of the pieces, to apply through it the vacuum of subjection of the pieces. 25

    It happens, however, that the pieces to be printed can be of a width smaller than the surface of the support table, whereby in the lateral areas not covered by the application part there is a vacuum absorption effect that can cause the deflection of the inks that are projected on the piece to be printed, resulting in imperfections of the print 30 on the piece and the loss of a part of the inks that are projected.

    To cope with this problem, solutions have been developed, such as that of the ES Patent 2310490, which annul the performance of the vacuum in the areas not covered by the pieces that are printed on the tables of the printers, by means of the provision of shutters of 35 the perforations of the tables, below the lateral areas of the perforated surface of the tables on which the pieces to be printed are arranged, whereby the performance of the vacuum is focused only under the piece placed on the table, avoiding with this the harmful effects of aspiration. This solution is effective, but it requires the adjustment of the position of the shutters every time the width of the pieces to be printed varies, which requires the intervention of an operator, making the printing process slow and expensive.

    Object of the invention

    In accordance with the present invention, a vacuum application system is proposed in the 45 tables of printing machines, with an arrangement that automatically cancels the performance of the vacuum in the side areas not covered by the parts to be printed, avoiding the harmful influence of the vacuum for the printing, as well as the losses of wasted inks, in addition to accelerating and simplifying the transition of the printing on pieces of different widths. fifty

    According to the invention, under the perforated surface of the support table of the parts to be printed there is a vacuum system comprising a drawer connected through suction nozzles with a suction system, with side panels inside the drawer from
    vertical closure arranged in a sliding sliding displacement assembly in the drawer, with a drive system of said panels comprising a motor associated with a drive shaft that acts on a series of spindles that move in approximation and separation to said side panels Vertical drawer closure. Additionally, in the entrance area of the pieces to be printed, upon their positioning on the support table in the printing machine 5, a detection system is provided that determines the passage of the initial edge and the final edge of the length of the parts , as well as the width of them.

    With this, each piece to be printed is arranged on the table of the printing machine, entering from a feeding system, so that when passing through the detector system it determines the length and width of the piece from the passage of the initial edge of the same, to transmit some coordinates that allow the control of the projection of the printing inks with precision on the piece, as well as the control of the drive to place the vertical closing side panels of the vacuum drawer in the corresponding position with the width of the piece, thus being limited the action of the vacuum through the perforated table to the area on which the piece rests.

    With this system the application area of vacuum for the subjection of the pieces to be printed, is therefore automatically adjusted according to the control of the dimensions of the pieces when they pass through the detection system at the entrance to the printing machine, with This avoids manual intervention every time the size of the pieces to be printed varies, thus reducing the operating time of the printing processes, since no waiting times are necessary to adjust the vacuum application area on the support table of the pieces to be printed, which results in a reduction in costs, in addition to providing a much more reliable adjustment accuracy than that of manual intervention. 25

    Therefore, said vacuum application system object of the invention results in certain advantageous characteristics, acquiring its own life and preferential character with respect to other known vacuum application systems of the same application.
     30
    Description of the figures

    Figure 1 shows a schematic side elevation view of an embodiment of a printing machine provided with the vacuum system object of the invention.
     35
    Figure 2 shows a corresponding plan view with respect to the previous figure.

    Figures 3 and 4 show schematic plan views of the drawer of the vacuum system of the invention, in two positions for regulating the application of the vacuum for parts of two different widths. 40

    Figure 5 shows a perspective view of an embodiment of a printing table with the vacuum system object of the invention.

    Figure 6 shows a view of a longitudinal section in perspective of the printing table of the previous figure.

    Figure 7 shows an enlarged cross-sectional view of the same printing table, according to a section corresponding to the area of a nozzle of the suction system.
    Figure 8 shows a cross-section of the printing table by a corresponding area 50 with a spindle displacement of the side walls of vertical closure of the vacuum drawer.

    Detailed description of the invention

    The present invention relates to a vacuum system for clamping parts (1) in printing machines, for example of the type comprising a printing table (2) formed by a conveyor belt (3) which is driven by a motor of drag (4) and that 5 determines a perforated surface to support the pieces (1) to be printed, said printing table (2) being arranged above said printing table system (5), while below a vacuum system is arranged on the perforated support surface of the pieces (1) to be printed; going ahead of the printing table (2) a system (6) for feeding the parts (1) to be printed, which can be independent pieces 10 or a continuous sheet, and behind said printing table (2) a system (7) for the output of printed parts (1).

    The vacuum system comprises a drawer (8) that connects from the middle area of its transverse width, by means of nozzles (9), with a suction system, said drawer (8) 15 having its perforated upper face, which remains below the perforated surface of the printing table (2), on which the pieces (1) are arranged for printing, so that the vacuum that the suction system produces in said drawer (8), causes aspiration through the upper face of the same and the support surface of the pieces (1), establishing their support on said support surface, to keep them fixed in the printing process.

    Inside the drawer (8) are arranged side panels (10) that vertically close that interior of the drawer (8) tightly, said side panels (10) being incorporated in a sliding assembly in the transverse direction of the drawer (8), through a system of action, so that they can approach and separate from each other.

    The actuation system of the mobile side panels (10) that vertically close the drawer (8), comprises a motor (11), which drives a drive shaft (12) that is arranged on one side along the drawer (8), that transmission shaft (12) being related by means of 30 couplings (13) with transverse spindles (14) that are associated with the side panels (10) of the interior of the drawer (8), in relation to the which said spindles (14) establish reverse coupling ratios, so that turning in one direction causes an approximate displacement of these side panels (10) and with the rotation in the opposite direction a separation displacement thereof. For this, the spindles (14) are related to the side panels (10) through threaded couplings (15) of reverse threads.

    In this way, to adapt the vacuum system in the printing table (2) according to the width of the pieces (1) to be printed, by means of the motor (11) they are driven through the transmission shaft (12) the spindles (14), which move the side panels (10) transversely through the inside of the drawer (8), to the position corresponding to the width of the piece (1) arranged on the printing table (2), determining that the action of the vacuum only has an effect on the area covered by the part (1) to be printed, leaving the lateral areas of the surface of the printing table (2) not covered by the part (1), without 45 Act the void on them.

    In the entrance area of the pieces (1) to be printed, at its disposal on the printing table (2), there is a detection system (16), which when passing the pieces (1) determines the length and width of the same and their position, generating coordinates that allow to establish with precision the control of the projection of inks for the impressions to realize, as well as an automatic control of the positioning of the lateral partitions (10) inside the drawer ( 8) to adjust the vacuum system in relation to the width of the pieces (1) that are arranged on the printing table (2) to be printed.

    According to a practical embodiment, to ensure a perfect positioning of the pieces (1) when they are placed on the printing table (2) and to determine precise clamping conditions during the course of the printing area and the release in the exit area, it is expected that the longitudinal extension of the drawer (8) is divided into three successive independent chambers 5, each connected by one or more nozzles (9) with the suction system, to determine, by means of a control of regulation of said suction system, different vacuum pressures in the successive chambers, to hold the pieces (1) in the entrance area to the positioning on the printing table (2), with a force greater than in the printing area and with less force in the area of withdrawal of the pieces (1) 10 printed.
    权利要求:
    Claims (4)
    [1]

    1.- Vacuum system for clamping parts in printing machines, comprising a printing table (2) having a perforated surface, in relation to which a vacuum system is arranged to hold on said printing table (2) the pieces (1) to be printed, 5 characterized in that the vacuum system comprises a drawer (8) that connects from the middle area of its transverse width with a suction system through nozzles (9), said drawer (8) being presented an upper wall perforated in confrontation with respect to the perforated surface of the printing table (2), while inside it there are arranged side panels (10) that vertically seal said interior 10 of the drawer (8), which side panels (10) are movable in transversal displacement of approach and separation between them inside the drawer (8), being related to them an actuation system to move them.

    [2]
    2. Vacuum system for clamping parts in printing machines, according to the first claim, characterized in that the movement actuation system of the side panels (10) comprises a motor (11) that drives an axis of transmission (12), which by means of couplings (13) is related to spindles (14) that move to the side panels (10).
     twenty
    [3]
    3. - Vacuum system for clamping parts in printing machines, according to the first and second claims, characterized in that the actuation of the movement actuation system of the side panels (10) is automatically controlled according to the dimensions of the pieces (1) to be printed, by means of coordinates provided by a detection system (16) through which the pieces (1) pass when they are placed on the printing table (2).

    [4]
    4.- Vacuum system for clamping parts in printing machines, according to the first claim, characterized in that the longitudinal extension of the drawer (8) is divided into successive independent chambers, in which different vacuum pressures are applied, 30 to hold the pieces (1) to be printed, with greater force in the entrance area to the positioning on the printing table (2) than in the printing area and with less force in the area of withdrawal of the parts (1) printed.

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    同族专利:
    公开号 | 公开日
    EP3118008A4|2017-12-27|
    EP3118008A1|2017-01-18|
    WO2015136137A1|2015-09-17|
    ES2837072T3|2021-06-29|
    JP6761757B2|2020-09-30|
    JP2017507819A|2017-03-23|
    PL3118008T3|2021-05-17|
    US10167154B2|2019-01-01|
    US20180170073A1|2018-06-21|
    EP3118008B1|2020-10-07|
    ES2548352B1|2016-07-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US4312694A|1975-06-16|1982-01-26|Sherman Paul L|Method for facilitating printshop paste-up operations|
    DE4013302A1|1990-04-26|1991-10-31|Koenig & Bauer Ag|DEVICE FOR PROMOTING A PARTICULAR DIVIDED FLOW FROM ARC|
    JPH07304167A|1994-05-13|1995-11-21|Hitachi Koki Co Ltd|Ink jet printer|
    US6582072B1|2000-04-03|2003-06-24|Hewlett-Packard Development Co., L.P.|Linefeed control in belt-type printers|
    JP4571812B2|2003-02-24|2010-10-27|ハイデルベルガードルツクマシーネンアクチエンゲゼルシヤフト|Sheet transport device|
    JP2006089223A|2004-09-24|2006-04-06|Canon Finetech Inc|Paper carrying device|
    DE102006033940A1|2006-07-22|2008-01-24|Koenig & Bauer Aktiengesellschaft|Apparatus for feeding a scaly arc stream|
    WO2008136823A1|2007-05-03|2008-11-13|Hewlett-Packard Development Company, L.P.|Improvements in or relating to printers|
    ES2310490B1|2007-06-29|2009-11-16|Jesus Fco. Barberan Latorre|VACUUM APPLICATION SYSTEM IN PRINTER TABLES BY PROJECTION.|
    JP5125678B2|2008-03-27|2013-01-23|セイコーエプソン株式会社|Recording device|
    US7988150B2|2009-02-24|2011-08-02|Xerox Corporation|Media transport device with vacuum-controlled positioning|
    US8157369B2|2010-05-26|2012-04-17|Xerox Corporation|Media hold-down system having cross process chambering|
    JP5543564B2|2011-12-27|2014-07-09|富士フイルム株式会社|Inkjet recording device|
    DE102012207064A1|2012-04-27|2013-10-31|Bielomatik Leuze Gmbh + Co. Kg|Device for shingling and placing sheets on a stack|CN110087889B|2016-12-22|2021-03-19|爱克发有限公司|Ink jet printer with vacuum system|
    DE102017213970A1|2017-08-10|2019-02-14|Deutsches Zentrum für Luft- und Raumfahrt e.V.|Method and device for determining changes in the longitudinal dynamic behavior of a rail vehicle|
    JP2020028983A|2018-08-20|2020-02-27|京セラドキュメントソリューションズ株式会社|Image forming device|
    US10913294B2|2019-05-14|2021-02-09|Electronics For Imaging, Inc.|Printing systems and associated structures and methods having ink drop deflection compensation|
    EP3825136A1|2019-11-21|2021-05-26|Jesús Francisco Barberan Latorre|Vacuum system for securing substrates|
    CN111559178B|2020-05-27|2020-10-27|佛山希望数码印刷设备有限公司|Large-breadth high-speed high-precision packaging ink jet machine|
    法律状态:
    2016-07-13| FG2A| Definitive protection|Ref document number: 2548352 Country of ref document: ES Kind code of ref document: B1 Effective date: 20160713 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201430353A|ES2548352B1|2014-03-14|2014-03-14|VACUUM SYSTEM FOR HOLDING PARTS IN PRINTING MACHINES|ES201430353A| ES2548352B1|2014-03-14|2014-03-14|VACUUM SYSTEM FOR HOLDING PARTS IN PRINTING MACHINES|
    JP2016557885A| JP6761757B2|2014-03-14|2015-03-11|Vacuum system for fixing articles in printing machines|
    EP15761088.2A| EP3118008B1|2014-03-14|2015-03-11|Vacuum system for securing items in printing machines|
    PL15761088T| PL3118008T3|2014-03-14|2015-03-11|Vacuum system for securing items in printing machines|
    US15/125,230| US10167154B2|2014-03-14|2015-03-11|Vacuum system for securing items in printing machines|
    PCT/ES2015/070171| WO2015136137A1|2014-03-14|2015-03-11|Vacuum system for securing items in printing machines|
    ES15761088T| ES2837072T3|2014-03-14|2015-03-11|Vacuum system to secure articles in printing machines|
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