SHEET FEEDING DEVICE.

摘要

A sheet feeding device for feeding paper sheets mounted on a hopper by a suction conveyor provided on the lower part of the hopper to the printing machine one by one, which device is provided with a motor for driving the suction conveyor, a sensor for detecting the forward end of a sheet conveyed by the conveyor, and a control device for controlling the motor so as to drive the motor synchronously with the plate cylinder of the printing machine and for correcting phases of the plate cylinder and the sheet on receiving a sensor detected signal, whereby mechanical error in sucking a sheet is corrected and accuracy in sheet feeding is improved.