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1. 发明授权

US4817525A Method and apparatus for synchronously controlling the printing speed of belt-type printing machine 失效
标题翻译：用于同步控制带式打印机的打印速度的方法和装置
公开(公告)号：US4817525A
公开(公告)日：1989-04-04
申请号：US70583
申请日：1987-07-07
申请人： Toshimasa Yagi
发明人： Toshimasa Yagi
IPC分类号： B41F5/04 , B41F13/12 , B41F13/14 , B41F17/00 , B41F17/14 , B41F33/14
CPC分类号： B41F13/14 , B41F17/007 , Y10S101/48
摘要： Method and apparatus for synchronously controlling a printing speed of a belt-type printing machine including a plate cylinder, a tension roll for adjusting a distance between the plate cylinder and the tension roll, and an endless printing belt detachably wound around the plate cylinder and the tension roll. According to the present invention, sprocket wheels each having thereround sprocket pins for engaging perforations of the endless printing belt are rotatably mounted on the plate cylinder so that the sprocket wheels have no function of driving the endless printing belt and are only intended to guide the belt along a predetermined path and prevent it from lateral movement relative to the plate cylinder. The endless printing belt is driven only by a frictional force between the peripheral surface of the plate cylinder and the belt. With independently detecting the number of rotation of the sprocket wheels, i.e. the travelling speed of the endless printing belt and the rotational speed of the plate cylinder, i.e. the reference speed of the printing machine, an error between these speeds, if any, is corrected to synchronously equalize these speeds by a differential gear unit to which main drive for driving the plate cylinder and sub-drive for correcting the error are inputted.
摘要翻译：用于同步控制带式印刷机的印刷速度的方法和装置，包括印版滚筒，用于调节印版滚筒和张力辊之间的距离的张力辊和可拆卸地卷绕在印版滚筒上的环形印刷带，以及张力卷。根据本发明，每个具有用于接合环形印刷带的穿孔的链轮销的链轮可旋转地安装在印版滚筒上，使得链轮不具有驱动环形印刷带的功能，并且仅用于引导带沿着预定的路径阻止它相对于印版滚筒的横向运动。无端印刷带仅由印版滚筒的周面与皮带之间的摩擦力驱动。通过独立地检测链轮的旋转次数，即环形印刷带的移动速度和印版滚筒的转速，即印刷机的参考速度，这些速度之间的误差（如果有的话）被校正通过用于驱动印版滚筒的主驱动器和用于校正误差的子驱动器的差速齿轮单元同步地均衡这些速度。

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