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    • 32. 发明授权
    • Method of measuring the printing pressure in a printing machine
    • 测量印刷机中印刷压力的方法
    • US4596183A
    • 1986-06-24
    • US750884
    • 1985-07-01
    • Gerd SteinerWinfried HartungValentin Gensheimer
    • Gerd SteinerWinfried HartungValentin Gensheimer
    • G01L5/00B41F13/24B41F33/00B41F33/14B41F13/34
    • B41F33/0072
    • A force or movement sensor is disposed on or proximate to an impression cylinder of a sheet-fed printing machine in order to sense the printing pressure. The sensor is sampled in synchronism with the rotation of the impression cylinder and the feeding of the sheets in order to detect a first pressure signal when pressure is applied to the fed sheets, and to detect a second pressure signal when the impression cylinder is relieved of the printing pressure. The differential value of the first and second pressure signals is displayed as an output or is evaluated by a pressure control system. As a result, static and quasi-static disturbances are suppressed. The mesurement is not affected by wear of the cylinder bearings or journals, variations in machine speed, and zero-point shift in the sensor and its associated electronics. These disturbances are further suppressed by averaging or accumulating samples over sample intervals and over a number of revolutions of the impression cylinder. Also, by proper synchronization of the sampling intervals with the feeding of sheets to the impression cylinder, the method can be used in a two-color rotary press for separately determining and independently controlling the pressures from the top and bottom ink transfer cylinders in response to a single sensor at the impression cylinder.
    • 力或运动传感器设置在单张纸印刷机的压印滚筒上或附近,以便感测印刷压力。 传感器与压印滚筒的旋转和纸张的进给同步地进行采样,以便当对进给的纸张施加压力时检测第一压力信号,并且当压印滚筒被释放时检测第二压力信号 打印压力。 将第一和第二压力信号的微分值显示为输出或通过压力控制系统进行评估。 结果,静态和准静态扰动被抑制。 测量不受油缸轴承或轴颈磨损,机器速度变化和传感器及其相关电子零点偏移的影响。 通过在样品间隔和压印滚筒的转数上平均或累积样品,进一步抑制了这些干扰。 此外,通过将采样间隔与将压片滚筒进给正确同步,该方法可用于双色旋转压机中,用于分别确定和独立地控制来自顶部和底部墨水输送滚筒的压力,以响应于 压印滚筒上的单个传感器。
    • 39. 发明授权
    • Inking unit pre-adjustment method
    • 压片单位预调节方式
    • US4660470A
    • 1987-04-28
    • US663227
    • 1984-10-22
    • Jurgen KrampPeter SchrammGerhard AugsbergGerd Steiner
    • Jurgen KrampPeter SchrammGerhard AugsbergGerd Steiner
    • B41F31/02B41F31/00B41F31/04B41F31/14B41F33/00B41F31/10
    • B41F31/04B41F31/00B41F33/0027B41P2213/734B41P2233/11
    • As ink is conveyed through the inking unit of a printing machine, a state of equilibrium occurs which ensures adequate inking of the printing plate during continuous printing. The equilibrium state includes different ink gradients for the respective printing zones superimposed on a uniform base level. In order to achieve the state of equilibrium rapidly and easily at the start of printing, an ink distribution is produced in the inking unit before printing closely matching the state of equilibrium for continuous printing. An accurately defined ink film distribution is initially fed to the inking unit rollers via the vibrator. Preferably, when the ink applicator rollers are thrown off of the plate cylinder and the sheet feed is off, a predetermined amount of ink is introduced to the inking unit. The vibrator is then shut off and the base level of ink is allowed to become uniformly distributed. Next the ink profile is set at the ink metering elements and the vibrator is turned on. When the ink profile propagates to the applicator rollers, the applicator rollers are thrown on to the plate cylinder and the sheet feed is turned on.
    • 当墨水通过印刷机的着墨单元输送时,发生平衡状态,确保在连续印刷期间印刷板的充分着墨。 平衡状态包括叠加在均匀基底水平上的各印刷区域的不同油墨梯度。 为了在印刷开始时快速且容易地达到平衡状态,在印刷之前在着墨单元中产生与分配状态匹配以进行连续印刷的油墨分布。 首先通过振动器将准确定义的油墨分配物送入着墨单元辊。 优选地,当油墨涂布辊从印版滚筒抛出并且进纸被关闭时,预定量的墨水被引入到着墨单元。 然后关闭振动器,使墨水的基准水平均匀分布。 接下来,将墨水轮廓设置在墨水计量元件上并且振动器被打开。 当油墨轮廓传播到涂布辊时,涂布辊被扔到印版滚筒上并且片材进给被打开。
    • 40. 发明授权
    • Inking unit for a printing machine
    • 用于印刷机的印刷机
    • US4620481A
    • 1986-11-04
    • US752248
    • 1985-07-03
    • Gerd Steiner
    • Gerd Steiner
    • B41F31/15B41F31/14B41F31/34B41L27/16
    • B41F31/15Y10S101/38
    • In an inking unit, the ink is taken in metered quantities from an ink reservoir and distributed by inking rollers to form an ink film adapted to be applied by ink applicator rollers to a printing plate. To avoid mottling, an ink applicator roller is moved axially in the phase of a machine cycle during which the ink applicator roller is not in engagement with the printing plate. During the ink application, on the other hand, the ink applicator roller performs either no axial movement or only a slight axial movement. This avoids an undesirable increase of the size of the screen dots and improves the print quality.
    • 在墨水单元中,墨水从墨水储存器以计量量取出并通过上墨辊分配,以形成适于由涂墨辊施加到印刷版上的墨膜。 为了避免斑驳,油墨涂布辊在机器循环的相位中轴向移动,在此期间,油墨涂布辊不与印刷版接合。 另一方面,在油墨施加期间,油墨涂布辊不进行轴向运动或仅进行轻微的轴向运动。 这避免了不希望的尺寸的屏幕点的增加并提高了打印质量。