公开(公告)号：US4554869A

公开(公告)日：1985-11-26

申请号：US585113

申请日：1984-03-01

申请人： Edward N. Ranno, Sr.

发明人： Edward N. Ranno, Sr.

IPC分类号： B41F31/14 ,  B41L27/16 ,  B41L17/00

CPC分类号： B41F31/14 ,  B41L27/16

摘要： Auxiliary form roller apparatus is provided for rotary offset lithographic duplicating machines to increase the number of form rollers and more uniformly distribute the ink over the master cylinder. The apparatus has a frame formed by a pair of oppositely-disposed, substantially J-shaped support arms which are separated and joined by laterally extending support members. One end of each support arm is bifurcated to receive the main frame support rod of the duplicating machine and the other end of the arm is slotted to slidably receive and support one of the end bearings of a rotatable, auxiliary form roller which is disposed between the arms and is adapted to bear against the master cylinder at a location which is spaced a peripheral distance from the existing form rollers of the machine. A laterally-oscillating, rotatable auxiliary oscillator roller is swingably mounted on the support arms and is so disposed as to engage the auxiliary form roller and one of the existing form rollers of the machine to provide for uniform ink transfer from the existing form roller to the auxiliary form roller. The frame arms are apertured between the ends thereof to receive a laterally-extending, eccentric adjusting rod which also passes through and is supported by a pair of mounting blocks which are adapted to be secured to the main frame members of the duplicator to support the apparatus. Rotatable eccentric bearings are provided for the adjusting rod so that the axis of the auxiliary form roller may be suitably adjusted with respect to the axis of the master cylinder to provide a uniform line contact between the auxiliary form roller and the master cylinder.

摘要翻译： 辅助成形辊装置设置用于旋转胶版印刷复印机，以增加成型辊的数量并且更均匀地将油墨分布在主缸上。 该装置具有由一对相对设置的基本上为J形的支撑臂形成的框架，该支撑臂由横向延伸的支撑构件分离并连接。 每个支撑臂的一端分叉以接收复制机的主框架支撑杆，并且臂的另一端开槽以可滑动地容纳和支撑可旋转的辅助成形辊的一个端部轴承，该可旋转的辅助成形辊位于 并且适于在与机器的现有成形辊间隔开周边的位置处抵靠主缸。 横向振荡的可旋转的辅助振动辊可摆动地安装在支撑臂上并且被布置成与辅助成形辊和机器的现有成形辊中的一个接合以提供从现有的成形辊到 辅助成型辊。 框架臂在其端部之间开有孔，以容纳横向延伸的偏心调节杆，其也穿过并由一对安装块支撑，该对安装块适于固定到复印机的主框架构件以支撑设备 。 为调节杆提供可旋转的偏心轴承，使得辅助成形辊的轴线可以相对于主缸的轴线适当地调整，以在辅助成形辊和主缸之间提供均匀的线接触。