Paper separating device for automatic paper feeder

Abstract

Disclosed is a paper separator of automatic paper feeder capable of steadily separating the outmost paper from a pile of paper and feeding the separated paper. It comprises a paper separating wheel driven by a drive unit to rotate, a friction wheel, a first shaft and a force exerting mechanism. The friction wheel has a first rotation state when driven by the paper separating wheel to rotate, a rest state when the paper separating wheel feeding the first piece of paper, a second rotation state when driven by the second piece of paper which is fed by the paper separating wheel to rotate. The first shaft equipped in the friction wheel provides a damping torque to prevent the friction wheel from rotation. And the force exerting mechanism push the paper separating wheel and friction wheel to close together.

Description

technical field [0001] The invention relates to a paper separating device of an automatic paper feeder, in particular to a paper separating device using two friction wheels for paper separation and paper feeding. Background technique [0002] Automatic document feeders can be used in image input / output devices such as scanners, multifunction machines, copiers, and even printers. In order to feed the paper one by one, a paper separation device must be provided in the automatic document feeder, so as to avoid the misoperation that multiple papers are fed at the same time. [0003] figure 1 A schematic side view of a paper separating device of a known automatic paper feeder is shown. figure 2 show figure 1 The front view schematic diagram of the paper separation device of the automatic document feeder. like figure 1 and 2 As shown, the ideal design of the known paper separating device is to feed a plurality of papers 120 one by one. The paper...

AI Technical Summary

Problems solved by technology

[0009] In the above-mentioned known technology, since the pushing part formed by the parts between the two C-shaped buckles 215 is relatively difficult to manufacture, and there are many parts, it is not easy to assemble, and the cost of manufacturing and assembling cannot be effectively reduced.

In addition, the C-shaped buckle 215 still needs to apply an additional axial compressive force to the first shaft 220 of the friction wheel 210, which causes design problems

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