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    • 3. 发明授权
    • Device for printing-pressure control
    • 打印压力控制装置
    • US4351237A
    • 1982-09-28
    • US129886
    • 1980-06-05
    • Hans-Jurgen TappertHorst SchulzHans JohneAlbrecht Johne
    • Hans-Jurgen TappertHorst SchulzHans JohneAlbrecht Johne
    • B41F13/24B41F33/00B41F33/14B41F13/34
    • B41F33/0072B41F13/24
    • A pressure control arrangement for controlling pressure between a printing roller and an offset roller by measuring a force exerted in a bearing of the printing roller when the latter rotates with an angle .psi.. The arrangement includes a piezoelectric pickup positioned on the internal surface of the bearing of the printing roller, a measured pressure value processor for receiving a signal from the piezoelectric pickup, an indicator generating a signal corresponding to a desired pressure value and means to compare the first abovementioned signal with the second mentioned signal. The arrangement also includes a positioner circuit which receives the compared signal and applies the same to a drive member which adjusts the position of the bearing of the offset roller thereby adjusting printing pressure between two contacting rollers for printing on sheets of paper.
    • 一种用于通过测量当印刷辊以角度psi旋转时施加在印刷辊的轴承中的力来控制印刷辊和胶印辊之间的压力的压力控制装置。 该装置包括位于印刷辊的轴承的内表面上的压电拾取器,用于接收来自压电拾取器的信号的测量压力值处理器,产生对应于期望压力值的信号的指示器,以及将第一 上述信号与第二个提到的信号。 该装置还包括定位器电路,其接收比较的信号并将其施加到调节偏移辊的轴承的位置的驱动构件,从而调节用于在纸张上打印的两个接触辊之间的印刷压力。
    • 10. 发明授权
    • Printing plate mounting arrangement
    • 印版安装方式
    • US4368668A
    • 1983-01-18
    • US264667
    • 1981-05-15
    • Hans JohneArndt JentzschGunter SchumannArnfried JehringFritz LiebschnerRolf GutscheFrank Grafe
    • Hans JohneArndt JentzschGunter SchumannArnfried JehringFritz LiebschnerRolf GutscheFrank Grafe
    • B41F27/00B41F27/12
    • B41F27/1206B41F27/005Y10S101/36
    • An arrangement for facilitating the mounting of printing plates on a plate cylinder of an offset printing machine. Two arms are mounted atop the machine at the opposite lateral sides thereof and have free ends provided with hooks. A rail is suspended from these hooks and carries quick-coupling devices which engage the trailing edge of a printing plate to be mounted. The hooks are suspended on ropes which are wound upon rollers mounted on the free ends of the arms; turning of the rollers in a sense causing unwinding of the ropes is resisted by torque springs or similar devices; this resistance can be varied to compensate for printing plates of different weights. Thus, the weight of the printing plate cannot cause the ropes to unwind; however, when the leading edge of the printing plate is connected to the plate cylinder and the cylinder is slowly rotated to take the plate up on it, the pull exerted by the cylinder causes unwinding of the ropes.
    • 一种用于便于将印版安装在胶印机的印版滚筒上的装置。 两个臂在其相对侧面安装在机器的顶部,并且具有钩的自由端。 轨道从这些钩子悬挂并且携带与要安装的印版的后缘接合的快速连接装置。 钩子悬挂在缠绕在安装在臂的自由端上的辊上的绳索上; 在一定程度上转动辊子,使绳索展开,扭矩弹簧或类似装置抵抗; 该电阻可以变化以补偿不同重量的印版。 因此,印版的重量不能使绳索放松; 然而,当印版的前缘连接到印版滚筒并且滚筒缓慢旋转以将印版放在其上时,由圆筒引起的拉力导致松开卷。