公开(公告)号：US4078487A

公开(公告)日：1978-03-14

申请号：US780412

申请日：1977-03-23

Applicant: Alan Stuart McComb

Inventor： Alan Stuart McComb

IPC: B41F33/14 ,  B65H26/02 ,  B41F13/02

CPC classification number: B41F33/14 ,  B65H26/02 ,  B65H26/025

Abstract: A control for a web processing machine such as for a printing press is described for detecting web breaks, faulty web sensors and inconsistent web threading conditions. A logic network is employed to compare web sensor signals with control signals to detect whether the web sensor signals are consistent with what is called for by associated control signals. Station status signals are produced to stop the machine when inconsistent conditions are sensed and cause appropriate web severing. A bypass control network is provided to inhibit the station status signals for slow speed checkout. However, when the machine speed exceeds a predetermined level, the bypass network is automatically deactivated and full machine control protection restored.

Abstract translation: 描述了用于诸如用于印刷机的卷材处理机的控制器，用于检测卷筒纸断裂，纸张传感器故障和不一致的卷筒纸条件。 使用逻辑网络将网络传感器信号与控制信号进行比较，以检测网络传感器信号是否与相关控制信号所要求的信号一致。 产生站状态信号，以便在检测到不一致的条件时停止机​​器，并导致适当的网络断开。 提供了一个旁路控制网络，用于禁止站状态信号进行慢速检出。 然而，当机器速度超过预定值时，旁路网络将自动停用，并恢复全机控制保护。