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公开(公告)号：EP1069989B1
公开(公告)日：2001-12-19
申请号：EP99924733.1
申请日：1999-03-31
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公开(公告)号：EP0986469B1
公开(公告)日：2001-12-19
申请号：EP98934806.5
申请日：1998-05-27
IPC分类号： B41C1/045
CPC分类号： B41C1/045
摘要： The invention relates to a method for operating an engraving member in an electronic engraving machine to engrave printing forms, especially printing cylinders for intaglio printing. A burin of the engraving member is controlled by an engraving signal and engraves a sequence of cups arranged in a gravure screen in the rotating printing cylinder. The engraving signal is formed by superimposing the image signal representing the tonalities to be engraved. In order to obtain good quality engraving, the engraving member is heated to a temperature that is close to operating temperature before engraving starts and/or during an interruption of engraving. To this end, the engraving member is impinged upon by a periodic signal whose frequency is preferably located inside the ultrasonic range in order to avoid noise disturbances.
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公开(公告)号：EP1001882B1
公开(公告)日：2001-12-05
申请号：EP98944982.2
申请日：1998-07-11
CPC分类号： B41C1/045 , H04N1/0473 , H04N1/1911 , H04N2201/0471 , H04N2201/04715 , H04N2201/04739 , Y10T409/302464 , Y10T409/303752
摘要： The invention relates to a method for positioning engraving organs (3) in an electronic engraving machine for rotogravure printing cylinder (1) engraving wherein at least two adjacent lying engraving areas of selected widths (SB) are engraved with an engraving organ (3) respectively assigned thereto. Axial reference positions (RP) are selected for the engraving organs (3), whose axial distances to each other correspond to the selected widths (SB) of the engraving areas (SB) that are to be engraved. An electronic position measuring device (20,21,22), consisting essentially of a video camera (21) and an image evaluation level (22), is successively placed on the axial reference positions (RP). At each reference position, the axial divergence of the tip of the burin pertaining to the appropriate engraving organ (3) or the divergence of at least one cup which is test engraved by the engraving organ (3) from the reference position (RP) is determined using the position measuring device (20,21,22). The engraving organs (3) are then automatically shifted according to the chosen divergences and placed exactly on the reference positions (RP).
摘要翻译： 本发明涉及一种用于在用于凹版印刷滚筒（1）雕刻的电子雕刻机器中定位雕刻机构（3）的方法，其中至少两个相邻的具有选定宽度的卧位雕刻区域（SB）分别刻有雕刻机构（3） 分配给它。 对于雕刻机构（3）选择轴向参考位置（RP），其彼此的轴向距离对应于要雕刻的雕刻区域（SB）的选定宽度（SB）。 基本上由摄像机（21）和图像评估水平（22）组成的电子位置测量装置（20,21,22）依次放置在轴向基准位置（RP）上。 在每个基准位置，与雕刻机构（3）相关的烧伤尖端的轴向发散或由雕刻机构（3）从参考位置（RP）测试雕刻的至少一个杯子的发散是 使用位置测量装置（20,21,22）确定。 然后雕刻机构（3）根据选定的发散自动偏移并精确地放置在参考位置（RP）上。
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公开(公告)号：EP0986466B1
公开(公告)日：2001-12-05
申请号：EP98934802.4
申请日：1998-05-27
CPC分类号： B41C1/045 , H04N1/4078
摘要： The invention relates to a method for making and evaluating a sample cut in an electronic engraving machine for engraving printing cylinders. An engraving control signal for guiding the burin of a graving element is formed from engraving data representing the predetermined tonalities that are to be engraved. The burin cuts a series of cups, arranged in the gravure screen, in the printing cylinder. The geometrical parameters of the cups determine the actual engraved tone values. During the trial engraving, trial cups (33) are engraved and a video image (35) of them is made. In accordance with the screen parameters of the gravure screen, measuring points (40) are fixed in the video image (35), as distances to a selected reference point (41). The geometric parameters of the trial cups (33) such as transverse diagonal, longitudinal diagonal, width of the engraving channel, width of the connecting material and cup surface are measured in the video image (35) at the measuring points (40), and compared to the corresponding geometric parameters of the cups representing the predetermined tone values. Adjustment values are deduced from this comparison, which are used to calibrate the engraving control signal in such a way that the actual tone values correspond to the predetermined tone values.
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公开(公告)号：EP1113930A1
公开(公告)日：2001-07-11
申请号：EP99924448.6
申请日：1999-05-21
IPC分类号： B41C1/045
CPC分类号： B41C1/02 , B41C1/04 , B41C1/045 , B44B3/009 , B44B3/061 , G01B11/024 , G05B19/401 , G05B2219/33078 , G05B2219/37358 , G05B2219/37572 , G05B2219/37574 , G05B2219/45163 , G05B2219/45178 , G05B2219/45212 , G05B2219/49235 , G05B2219/50057 , H04N1/06 , H04N1/0671 , H04N1/19 , H04N1/4005
摘要： An error detection apparatus and method for use with engravers, suc has gravure engravers. An error value E corresponding to the difference between a set of predetermined setup parameters and actual measurement of a portion of an engraved area on the cylinder is determined. The error value E is then used to adjust the engraver to engrave an actual cut or etch in accordance with the set of predetermined setup parameters. Advantageously, an error detection and correction system is suitable for providing a closed-loop system for engraving a cylinder. The apparatus and method may be used during initial setup or during normal operation of the engraver. Other features include an autofocus routine to facilitate the autofocus procedure. Also, image processing is further enhanced by gap filling, discontinuity removal, and light calibration methods which may be used alone, in combination with each other, or in combination with the automatic focus system and/or automatic shoe system. Other embodiments of the invention illustrate the use of a polarizing element to polarize reflected light, as well as light directed to a surface of the cylinder prior to reflection, and the use of a light emitting diode (LED) for illuminating the surface of the cylinder. The features of the improved optic system facilitate reducing or eliminating image noise, such as glare, 'blooming', inconsistent illumination, and enhances the quality of the image captured by a CCD array associated with the camera used in the imager or imaging system.
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公开(公告)号：EP1069989A1
公开(公告)日：2001-01-24
申请号：EP99924733.1
申请日：1999-03-31
摘要： The invention relates to a method for engraving screened printing cylinders by means of an engraving member (4) in an electronic engraving machine. An engraving control signal (GS) controlling said engraving member (4) is generated by superimposing a visual signal (B), representing the tone values to be reproduced, and a periodic screen signal (R) in order to produce an engraving screen. The engraving member (4) engraves a series of cup-shapes in a rotating printing cylinder (1) that are arranged in the engraving screen. The engraving member (4) performs a forward advance movement in the direction of this axis of the printing cylinder (1) in order to engrave the surface of the cup-shapes. Each printing colour in each set of printing colours is assigned its own specific engraving screen which is chosen in such a way that the moiré effects that occur during printing with other colours are minimized. In order to minimize the disruptive moiré effects even further at least one engraving screen (24) is engraved on the printing cylinder (1) in an offset position in relation to the other engraving screens of a set of colours in the direction of the forward advance movement of the engraving member (4) and/or in the direction of the periphery of the printing cylinder.
摘要翻译： 本发明涉及一种借助雕刻机构（4）在电子雕刻机中雕刻丝网印刷滚筒的方法。 通过叠加代表要被再现的色调值的可视信号（B）和周期性屏幕信号（R）来产生控制所述雕刻部件（4）的雕刻控制信号（GS），以产生雕刻屏幕。 雕刻构件（4）在布置在雕刻屏幕中的旋转印刷滚筒（1）中雕刻一系列杯形。 雕刻构件（4）在印刷滚筒（1）的该轴的方向上进行向前推进运动，以雕刻杯形表面。 每组印刷颜色中的每种印刷颜色都被赋予其自己的特定雕刻屏幕，其选择方式使得在用其他颜色印刷期间发生的莫尔效应被最小化。 为了最小化破坏性莫尔效应，至少一个雕刻丝网（24）在印刷滚筒（1）上相对于一组颜色中的其他雕刻丝网在向前推进方向上的偏移位置被雕刻 雕刻构件（4）的运动和/或印刷滚筒周边的方向。
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27.发明授权Automatic real-time calibrator for electromechanical rotogravure stylus 失效自动Echtzeitkalibrierer机电凹版印刷笔
公开(公告)号：EP0595324B1
公开(公告)日：1997-01-02
申请号：EP93117504.6
申请日：1993-10-28
发明人： Yoshida, Takumi, c/o Dainippon Screen Mfg. Co.,Ltd , Syudou, Tadashi, c/o Dainippon Screen Mfg. Co.,Ltd , Yamaguchi, Minetoshi c/o Dainippon Screen Mfg. Co.
CPC分类号： B41C1/045 , G01B11/024
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公开(公告)号：EP0164764A2
公开(公告)日：1985-12-18
申请号：EP85200408.4
申请日：1980-06-10
申请人： BUECHLER, Lester W.
发明人： BUECHLER, Lester W.
CPC分类号： B44B3/061 , B23Q1/34 , B23Q5/027 , B23Q11/0032 , B23Q11/0039 , B41C1/04 , H04N1/3876 , H04N1/4072 , Y10S101/45 , Y10T409/304312 , Y10T409/309296
摘要： The invention relates to a method and apparatus for engraving the surface of a gravure printing cylinder with a pattern adapted to be repetitively printed with a joint (J) between the adjacent printed patterns being less visible to the human eye. The method includes scanning a copy (C) of a pattern having selected opposite ends adapted to form a joint on the gravure printing cylinder, and electronically sensing the copy density at two locations (Ll, L2), on the pattern copy (C) adjacent the opposite ends. The densities at the different locations are electronically compared, and a correction factor based upon the comparison is electronically determined. Generally circumferentially extending rows of peripherally spaced cells are engraved within the cylinder surface according to the pattern, and the depth of the engraved cells corresponding to the opposite ends of the copy is adjusted according to the correction factor to correct for unbalance in copy density at the two locations (L1, L2) on the pattern copy (C).
摘要翻译： 本发明涉及一种用于雕刻凹版印刷滚筒的表面的方法和装置，其具有适于被重复地印刷在相邻的印刷图案之间的接头（J）的图案对于人眼不太可见。 该方法包括扫描具有选择的相对端的图案的复印件（C），用于在凹版印刷滚筒上形成接头，并且在相邻的图案复制件（C）上的两个位置（L1，L2）处电子地感测复印浓度 相反的两端。 电子比较不同位置的密度，并以电子方式确定基于比较的校正因子。 通常沿圆周方向延伸的外围细胞的行根据图案刻在圆柱体表面内，并且根据校正因子来调节对应于复印件的相对端的雕刻单元的深度，以校正复印密度的不平衡 图案复制（C）上的位置（L1，L2）。
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公开(公告)号：EP4122608A1
公开(公告)日：2023-01-25
申请号：EP22178455.6
申请日：2022-06-10
申请人： Sekise Corporation
发明人： HOSHIYAMA, Yuichi
摘要： The present invention provides an image engraving apparatus (1) capable of precisely driving a stylus (57) to improve accuracy of image engraving. The image engraving apparatus (1) has a vibration actuator (PAZ, PAY) fixed to a floating base (63) and having an output portion (89) configured to output vibration generated by deformation of piezoelectric elements (87), the stylus (57) supported with a stylus holder (97) to be vibrated and engrave an image on a medium (C) to be engraved, a supporting spring (99) supporting the stylus holder (97), and a retainer (121) positionally adjustably supported to the floating base (93) to come into contact with the medium (C).
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公开(公告)号：EP3928982A1
公开(公告)日：2021-12-29
申请号：EP21178571.2
申请日：2021-06-09
发明人： GASSNER, Thomas
摘要： Bei einem Verfahren zum Gravieren einer Intaglio-Stichtiefdruckplatte (1), wobei ein Tiefenprofil (2) der Intaglio-Stichtiefdruckplatte (1) durch Gravieren wenigstens einer Gravurschicht (4, 5, 6,7) erzeugt wird, wird vorgeschlagen, dass zumindest ein Bereich des Tiefenprofils (2) der Intaglio-Stichtiefdruckplatte (1) zur Erzeugung einer Farbrückhaltetopographie mit einer Mikroriffelung (9, 10) versehen wird, wobei die Mikroriffelung (9, 10) durch Gravieren von im Wesentlichen parallelen Zeilen mit einem vorgegebenen ersten Zeilenabstand (11) erzeugt wird.
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