-
公开(公告)号：US4029013A
公开(公告)日：1977-06-14
申请号：US685359
申请日：1976-05-11
摘要： A rotogravure printing plate for use in rotogravure printing, the plate having a non-resilient backing of a magnetically attractable material for mounting and holding the plate in fixed position on a magnetic cylinder, the plate having a surface into which wells for receiving ink may be formed so that, during printing with the plate mounted and held in position on the magnetic cylinder, ink deposited in the wells will be transferred to an ink receiving surface onto which the image formed by the wells on the plate is to be rotogravure printed.
摘要翻译： 一种用于轮转凹版印刷的轮转凹版印刷版，该板具有用于将板固定在磁性筒上的磁性吸引材料的非弹性背衬，该板具有一表面，用于接收油墨的孔可以在该表面上 形成为使得在印刷期间安装并保持在磁性筒上的位置的印刷机中，沉积在孔中的油墨将被转印到油墨接收表面，由油墨在板上形成的图像将被凹版印刷在该油墨接收表面上。
-
2.发明授权Method for direct charging of the surface of an impression roll of an electrostatic assist gravure press 失效用于直接充电静电辅助凹版印刷机的压印辊的表面的方法
公开(公告)号：US4909147A
公开(公告)日：1990-03-20
申请号：US653701
申请日：1984-09-24
IPC分类号： B41F9/00
CPC分类号： B41F9/001
摘要： A method and associated apparatus for applying a charge directly to an impression roll (12) which engages a gravure cylinder (14) of an electrostatic assist gravure press, wherein the improvement comprises the steps of placing a plurality of spaced contacts (26 or 54) capable of applying a charge to the impression roll (12) in direct contact with the surface of the impression roll (12), arranging the spacing between the contacts (26 or 54) and the width thereof so that predetermined groupings of the contacts (26 or 54) correspond to approximately the various web widths to be used with the gravure press, and controlling the charge applied by the contacts (26 or 54) to the surface of the immpression roll (12) to minimize the current leakage between the impression roll (12) and the gravure cylinder (14) in those areas of the impression roll (12) where the impression roll (12) directly engages the gravure cylinder (14) without the interposition of a web (22) therebetween.
摘要翻译： PCT No.PCT / US83 / 00164 Sec。 371日期1984年9月24日 102（e）1984年9月24日PCT提交1983年2月7日PCT公布。 公开号WO84 / 03068 PCT 日期1984年8月16日。一种用于将电荷直接施加到与静电辅助凹版印刷机的凹版滚筒（14）接合的压印辊（12）的方法和相关联的装置，其中，所述改进包括以下步骤： 能够与压印辊（12）的表面直接接触的能够对压印辊（12）施加电荷的间隔开的触点（26或54），布置触点（26或54）之间的间隔及其宽度，使得 接触件（26或54）的预定组合大致对应于将与凹版印刷机一起使用的各种卷筒纸宽度，并且控制由接触件（26或54）施加到压印辊（12）的表面上的电荷，以最小化 在压印辊（12）的压印辊（12）的那些区域中的压印辊（12）和凹版滚筒（14）之间的电流泄漏，其中压印辊（12）直接接合凹版滚筒（14）而不插入卷筒纸 ） 。
-
公开(公告)号：US4697514A
公开(公告)日：1987-10-06
申请号：US183401
申请日：1980-09-02
摘要： In a gravure printing with liquid ink upon a dielectric surface of a substrate such as paper, transfer to the substrate of a gravure ink having a conductivity of the order of about 5.times.10.sup.-6 mho/cm. is improved by creating, at the nip between the gravure cylinder and its impression roll, in the ink in the gravure cells at that nip, a charge whose intensity is sufficient under action by the field to overcome the surface tension forces that normally form a concave meniscus on the ink in those cells so that a portion of the surface of the ink in such cells bulges above the surface of the gravure cylinder and wets the surface of the substrate in contact with the gravure cylinder at that point.
摘要翻译： 在用液体油墨在诸如纸之类的基材的电介质表面上的凹版印刷中，将具有大约5×10 -6 mho / cm量级的电导率的凹版油墨转印到基底上。 通过在凹印滚筒和压印辊之间的辊隙处在该辊隙中的凹版印刷电路中的墨水中产生一种电荷，该电荷的强度在场作用下足以克服通常形成凹面的表面张力 在这些单元中的油墨上的弯液面，使得这种单元中的油墨表面的一部分在凹版滚筒的表面上方凸出并且在该点润湿与凹版滚筒接触的基板的表面。
-
公开(公告)号：US4487122A
公开(公告)日：1984-12-11
申请号：US548640
申请日：1983-11-04
IPC分类号： B41F13/18 , B41F13/187 , B41F9/00
CPC分类号： B41F13/187 , B41F13/18
摘要： A system for compensating for roll deflection to provide uniform contact pressure across the width of a web disposed between a pair of counter rollers, comprising a first roller mounted for rotation, a second roller mounted for rotation about a deflectable shaft, pressure applying means coupled to the ends of the deflectable shaft for moving the second roller into contact with the first roller, the second roller including an outer shell mounted for rotation relative to the deflectable shaft, a pair of end bearings disposed adjacent the ends of the outer sleeve and a pair of main bearings disposed inwardly from the end bearings a predetermined distance to transmit the applied pressure uniformly over the face width of the second roller when the second roller is used with a flexible first roller, and self-adjusting deflection compensating means arranged proximate to the deflectable shaft for applying pressure to the ends of the outer shell in response to the deflection of the deflectable shaft by the pressure applying means to provide uniform pressure across the face width of the second roller when the second roller is used with a first roller having a high resistance to bending.
摘要翻译： 一种用于补偿辊偏转的系统，以在布置在一对相对辊之间的网的宽度上提供均匀的接触压力，包括安装用于旋转的第一辊，安装成围绕可偏转轴旋转的第二辊;压力施加装置， 所述可偏转轴的端部用于使所述第二辊与所述第一辊接触，所述第二辊包括安装成相对于所述可偏转轴旋转的外壳;邻近所述外套筒的端部设置的一对端部轴承， 主轴承从端部轴承向内设置预定距离，以在第二辊与柔性第一辊一起使用时均匀地将施加的压力传递到第二辊的表面宽度上;以及自调节偏转补偿装置，其布置成靠近可偏转的 轴，用于响应于可偏转的偏转而向外壳的端部施加压力 通过压力施加装置在第二辊与具有高抗弯曲性的第一辊一起使用时提供穿过第二辊的表面宽度的均匀压力。
-
公开(公告)号：US4612584A
公开(公告)日：1986-09-16
申请号：US670049
申请日：1984-10-31
申请人： Harvey F. George , Yair Toor
发明人： Harvey F. George , Yair Toor
IPC分类号： B41C1/04 , B44B3/00 , G03F5/00 , H04N1/06 , H04N1/40 , H04N1/409 , H04N1/024 , H04N1/21 , H04N1/23
CPC分类号： H04N1/40075 , B44B3/004 , H04N1/4092
摘要： A method and associated apparatus is provided for converting halftone and screened films (12A and 12B) for use with electromechanical gravure engravers (22), comprising the steps of positioning an array (26) of photosensitive elements adjacent at least one film (12A) having an image thereon in the form of transparent and opaque picture elements (pixels) (30 and 32) having predetermined dimensions, affecting relative movement between the array (26) and the film (12A) for sampling a plurality of pixels of the film by the array (26), assigning a predetermined number of photosensitive elements to a predetermined number of photosensitive elements to a predetermined width of pixels, effectively creating a first sample area (34) bounded by the predetermined width of pixels and a pre-established number of samples, effectively creating a second sample area (36) smaller than the first sample area (34) and bounded by a plurality of pixels, the center of the second sample area (36) being coincident with that of the first sample area (34), counting the photosensitive elements which provide signals indicating transparent pixel areas within the first sample area (34), counting the photosensitive elements which provide signals indicating transparent pixel areas within the second sample area (36), adding the count of the photosensitive elements of the second sample area (36) to the count of the photosensitive elements of the second sample area (36) minus the count of the first sample area (34) to provide a signal representing the percentage dot area (PDA) for use with an electromechanical gravure engraver (22).
-
公开(公告)号：US3931570A
公开(公告)日：1976-01-06
申请号：US507559
申请日：1974-09-19
CPC分类号： B41F33/0027 , G01B7/34
摘要： A method of and associated apparatus for measuring cell volume in a gravure printing surface including the steps of positioning a probe including a pair of magnetic reaction devices over an engraved area with one device over an area with cells and the other device over an area without cells, providing a magnetic field to be sensed by the magnetic reaction devices, sensing the relative reduction in the strength of the magnetic field due to the presence of non-ferrous metal to provide a differential signal proportional to cell volume, and conditioning and recording the differential signal, as desired.
摘要翻译： 一种用于测量凹版印刷表面中的细胞体积的方法和相关装置，包括以下步骤：将包括一对磁性反应装置的探针定位在具有细胞的区域上的一个装置上的雕刻区域上，而在没有细胞的区域上将另一装置 提供由磁性反应装置感测的磁场，感测由于有色金属的存在导致的磁场强度的相对降低，以提供与电池体积成比例的差分信号，以及调节和记录差动 信号。
-
7.发明授权
公开(公告)号：US4504354A
公开(公告)日：1985-03-12
申请号：US414345
申请日：1982-08-23
申请人： Harvey F. George , Yair Toor
发明人： Harvey F. George , Yair Toor
CPC分类号： H04N1/23 , B23K26/0823 , B41C1/05 , H04N1/40081
摘要： A method and associated apparatus for forming gravure cells in a gravure cylinder for accurately reproducing an image, including the steps of coating the peripheral surface of a gravure cylinder with an insulating coating, revealing a first group of predetermined portions of the coated gravure cylinder by selectively removing the insulating coating overlying portions of the peripheral surface of the gravure cylinder, ablating the first group of exposed portions of the gravure cylinder to a predetermined depth, and repeating the revealing and ablating steps until a predetermined number of different groups of predetermined portions of the gravure cylinder have been revealed with each previously revealed group having further portions of the gravure cylinder ablated to a greater predetermined depth during each ablating step to provide a gravure cylinder having the desired pattern of gravure cells of the desired depths for accurately reproducing an image.
摘要翻译： PCT No.PCT / US82 / 00892 Sec。 371日期1982年8月23日 102（e）日期1982年8月23日PCT提交1982年7月2日PCT公布。 出版物WO84 / 00121 日本1984年1月19日。一种用于在凹版滚筒中形成凹版印刷电池以精确再现图像的方法和相关装置，包括以下步骤：用绝缘涂层涂覆凹版滚筒的外周表面，露出第一组预定部分 通过选择性地去除覆盖凹版滚筒的圆周表面的部分的绝缘涂层，将凹版滚筒的第一组暴露部分烧蚀到预定深度，并重复显露和消融步骤直到预定数量的 已经揭示了凹版滚筒的不同组的预定部分，每个先前揭示的组，其中在每个烧蚀步骤期间凹版滚筒的另一部分被切除到更大的预定深度，以提供具有期望深度的凹版印刷电路的所需图案的凹版滚筒 用于精确地再现图像。
-
8.发明授权Portable comparator gage for measuring the relative deviation in the diameter of cylinders 失效用于测量气瓶直径相对偏差的便携式比较计
公开(公告)号：US4141149A
公开(公告)日：1979-02-27
申请号：US728196
申请日：1976-09-30
CPC分类号： G01B5/0011 , G01B7/12 , G01B7/28
摘要： A portable comparator gage for cylinders having a self-supporting configuration with a high stiffness to weight ratio to minimize the contact force and therefore "spring open" of the gage when it is placed on a cylinder, and temperature compensation means to compensate for inaccuracies in the measurements of the relative deviation of the diameter of the cylinder resulting from variations in the temperature of the cylinder and gage from a nominal temperature.
摘要翻译： 一种用于气缸的便携式比较计量器，其具有高刚度与重量比的自支撑构型，以使其在放置在气缸上时的接触力最小化和因此“开启”，以及温度补偿装置来补偿不准确度 气缸直径和气缸温度与标称温度变化相关的气缸直径的相对偏差的测量值。
-
9.发明授权Apparatus for determining the dynamic complex hardness of resilient roll coverings 失效用于确定弹性辊涂层的动态复合硬度的装置
公开(公告)号：US3979948A
公开(公告)日：1976-09-14
申请号：US611265
申请日：1975-09-08
CPC分类号： G01N3/40
摘要： Apparatus for determining the dynamic complex hardness of resilient roll coverings including a portable housing for positioning directly on the resilient roll covering to be tested. The portable housing includes an adjustable probe coupled to force and displacement transducers. The adjustable probe is placed in contact with the resilient roll covering and vibrated. The transducers produce output signals in accordance with the force encountered by and displacement of the probe during displacement of the surface of the resilient roll covering. The output signals from the transducers are coupled to dynamic hardness and loss angle circuitry for providing direct measurements of the magnitude and phase angle of the dynamic complex hardness.
摘要翻译： 用于确定弹性辊覆盖物的动态复合硬度的装置，包括用于直接定位在待测试的弹性辊覆盖物上的便携式壳体。 便携式外壳包括耦合到力和位移传感器的可调探针。 可调式探头与弹性辊盖接触并振动。 换能器根据弹性辊覆盖物表面位移过程中遇到的力和探头的位移产生输出信号。 来自换能器的输出信号耦合到动态硬度和损耗角电路，用于提供动态复合硬度的幅度和相位角的直接测量。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.018 秒)
