Patent ID: 8770574
Filing Date: 2014-07-08
Classification: B65H

Abstract:
1. An edge pressing paper feeding device comprising a paper feeding mechanism and a control system; wherein the paper feeding mechanism comprises: a vacuum absorption variable-speed paper feeding mechanism comprising at least a first variable-speed paper feeding wheel group, a second variable-speed paper feeding wheel group, and a third variable-speed paper feeding wheel group, a first vacuum air suction box, and a servo motor; a vacuum absorption constant-speed edge pressing paper feeding mechanism comprising at least three constant-speed paper feeding wheel groups, two edge pressing wheels and a second vacuum air suction box, and an edge pressing paper feeding wheel shaft; said two edge pressing wheels are installed on the edge pressing paper feeding wheel shaft, which shaft is arranged above a middle one of the constant-speed paper feeding wheel groups; a distance between the two edge pressing wheels is adjusted by moving the two edge pressing wheels on the edge pressing paper feeding wheel shaft, and gaps between the edge pressing wheels and the middle one of the constant-speed paper feeding wheel groups are smaller than the thickness of a paper board, wherein: said three variable-speed paper feeding wheel groups are all connected with the servo motor, and the servo motor is controlled by a servo controller of the control system, and a photoelectric encoder is arranged at an end of the edge pressing paper feeding wheel shaft and an output signal of the photoelectric encoder is connected to a PLC of the control system, and the output signal of the PLC of the control system is connected to the servo controller.