公开(公告)号：US4602562A

公开(公告)日：1986-07-29

申请号：US776877

申请日：1985-09-17

申请人： Ludger Ottenhues ,  Heinz Wesselmann

发明人： Ludger Ottenhues ,  Heinz Wesselmann

IPC分类号： B41F5/24 ,  B41F13/12 ,  B41F13/14 ,  B41F13/36 ,  B41F13/38 ,  B41L35/04

CPC分类号： B41F5/24

摘要： A flexographic printing press comprising a plurality of inking units and plate cylinders and at least one impression cylinder, which is driven by a coaxial central gear in mesh with the gears of the plate cylinders rotatably mounted on plate cylinder carriages, which are adapted to move toward and away from the impression cylinder on tracks provided in the machine frame. That printing press is characterized in that each plate cylinder gear has a projection or hub provided on its periphery with angularly spaced detent bores equal in number to the plate cylinders and disposed on respective axially spaced peripheral lines. The plate cylinder carriages have detent pins, which are axially or angularly movable and are disposed in respective radial planes and are offset relative to each other so that each pin is adapted to enter that detent bore of that plate cylinder, which has a detent bore at a corresponding axial location. The detent bore of each plate cylinder has such an angular position that when the plate cylinders have been located on the plate cylinder carriages by means of the detent bores and the detent pins and the central gear has been adjusted to the proper angular position, the plates on the plate cylinders will be adjusted for printing in perfect register when the plate cylinders are caused to mesh with the central gear.

摘要翻译： 一种柔性版印刷机，包括多个着墨单元和印版滚筒以及至少一个压印滚筒，所述压印滚筒由同轴中心齿轮驱动，所述同轴中心齿轮与可滚动地安装在印版滚筒滑架上的印版滚筒的齿轮啮合， 并且在设置在机架中的轨道上远离压印滚筒。 该印刷机的特征在于，每个印版滚筒齿轮具有在其周边上设置有角度间隔的定位孔的凸起或毂，其数量等于印版滚筒并且设置在相应的轴向间隔的外围线上。 印版滚筒滑架具有止动销，其具有轴向或角度可移动并且设置在相应的径向平面中并且相对于彼此偏移，使得每个销适于进入该印版滚筒的定位孔，该定位孔具有制动孔 相应的轴向位置。 每个印版滚筒的制动孔具有这样的角度位置，即当印版滚筒通过制动孔位于印版滚筒滑架上并且定位销和中心齿轮已经被调整到适当的角度位置时， 当印版滚筒与中央齿轮啮合时，印版滚筒将被调整为完美的记录印刷。

公开(公告)号：US4023489A

公开(公告)日：1977-05-17

申请号：US655790

申请日：1976-02-06

申请人： Jack Beery

发明人： Jack Beery

IPC分类号： B41K3/64 ,  B41L35/04 ,  B65H9/00 ,  G07B17/00 ,  B41F13/24

CPC分类号： B65H9/00 ,  B41K3/64 ,  B41L35/04 ,  G07B17/00508

摘要： Electrical control circuitry for driving a rotational print head to initiate an endorsement on a single side of paper checks traveling past the print head at a relatively constant velocity, including a bistable device operatively connected to control a ramp generator for accelerating the print head at a relatively constant rate from a stopped position to a present printing velocity and then decelerating the print head to a rest state at the same relatively constant rate after completion of document endorsement. The circuitry responds to closely-spaced documents entering the endorser by interrupting the head during its deceleration mode and maintaining the head at its interrupted velocity for a certain time delay in order to reaccelerate the head back to printing velocity at the same relatively constant rate in time for proper endorsement.

摘要翻译： 用于驱动旋转打印头以在相对恒定的速度上行进通过打印头的旋转打印头开始认可的电气控制电路，包括可操作地连接以控制斜坡发生器的双稳态装置，用于相对地加速打印头 从停止位置到当前打印速度的恒定速率，然后在文件签注完成之后以相同的相对恒定的速度将打印头减速到休息状态。 电路通过在其减速模式期间中断头部并且将头部保持在其中断速度一定的时间延迟来响应进入贴标机的紧密间隔的文件，以便以相同的相对恒定的速率重新加速头部到打印速度 正确认可。

公开(公告)号：US4581993A

公开(公告)日：1986-04-15

申请号：US674230

申请日：1984-11-21

申请人： Edgar F. Schoneberger

发明人： Edgar F. Schoneberger

IPC分类号： B41F13/12 ,  B41F13/00 ,  B41F33/08 ,  B41F33/14 ,  B41F13/14 ,  B41L35/04

CPC分类号： B41F13/0008

摘要： A device for adjusting the plate or blanket cylinders in a rotary printing press automatically moves the cylinders to predetermined positions for clamping or unclamping the plate or blanket. A memory stores predetermined set values for cylinder position, which are addressed by a triggering unit in response to operation selections. An angle coder senses the actual value of the cylinder position which is compared to the set values obtained from the memory to generate a control signal for adjusting a cylinder drive motor. In a preferred embodiment, the memory also stores the direction for rotating the cylinders as well as a number of cylinder movement steps for plate and blanket clamping and unclamping sequences.

摘要翻译： 用于在旋转印刷机中调节印版滚筒或橡皮布滚筒的装置自动地将滚筒移动到用于夹紧或松开板或毯的预定位置。 存储器存储用于响应于操作选择由触发单元寻址的气缸位置的预定设定值。 角度编码器感测与从存储器获得的设定值相比较的气缸位置的实际值，以产生用于调节气缸驱动电动机的控制信号。 在优选实施例中，存储器还存储用于旋转气缸的方向以及用于板和橡皮布夹紧和松开顺序的多个气缸移动步骤。

公开(公告)号：US4030412A

公开(公告)日：1977-06-21

申请号：US674367

申请日：1976-04-07

申请人： Edward M. Springer

发明人： Edward M. Springer

IPC分类号： B41L11/12 ,  B41L35/04 ,  B41L11/08

CPC分类号： B41L11/12 ,  B41L35/04

摘要： A duplicating machine has an impression roll positioned to press copy sheets against a master sheet on a drum which is rotatable by an electric drive motor through a coil spring type clutch. The clutch consists of a coil spring having an interference fit with cylindrical friction surfaces on driving and driven clutch members which are connected respectively to the motor and drum. The coil spring is helically wound in a direction to tighten the interference fit when the motor rotates the driving clutch member to turn the drum in a printing direction; conversely, the interference fit loosens when the driving end of the coil spring is held, enabling the driving clutch member to rotate freely. A tang on the driving end of the spring is positively connected to a cylindrical release collar surrounding the spring. The driven end of the spring has a positive tang connection to the driven clutch member and drum. Thus, rotation of the release collar and drum are synchronized within a range determined by the torsional elasticity of the spring. A stop arm is movable to and from a stop position engaging one or more detent recesses in the release collar. Engagement of the stop arm within one of the recesses, at the end of a printing run, automatically stops the collar. This disengages the clutch by releasing the interference fit between the spring and the driving clutch member. The drum stops at a position determined by the stopped position of the release collar. A plurality of detent recesses are circumferentially and axially spaced about and along the axis of the release collar. The stop arm is selectively engageable with one or the other of the recesses to stop the drum at different rotated positions to enable the ends of different length master sheets to clear the impression roll. A manually operable starter arm assembly releases the stop arm from the detent recess on the release collar and simultaneously closes a switch to actuate the drive motor. Conversely, when the last copy sheet is fed into the machine, the stop arm automatically drops into the selected recess to stop the release collar to disengage the clutch while simultaneously opening the switch to deactuate the driving motor and allow the drive train to coast to a stop.