| 摘要 |
A paper supplying device has a shelf for placing sheets of paper to be supplied and a suction rotor disposed above the shelf. The suction rotor has suction openings on outer peripheral surfaces and can suck up the paper from the shelf by sucking in air through the sucking openings. A belt is passed over a pulley around the suction rotor not only causes the suction rotor to rotate but also serves to guide the sucked paper forward tangentially with respect to the rotor, preventing the paper from becoming wound up around the rotor. The device may also include nozzles for blowing air toward front edge of the sucked paper, gate plates for blocking any overlapping sheet of paper which may be attached to the sucked paper, nozzles for blowing air to separate any overlapping sheet of paper which may be attached to the sucked paper, or a friction pad which has a coefficient of friction smaller than that of the belt and is adjustably disposed so as to be selectably either in contact or not in contact with the belt. The suction rotor is formed by assembling one or more rotor units of a simple structure, each having a disk-shaped base plate with a throughhole at the center, a plurality of radially oriented partition walls standing on one of the surfaces of the base plate and as many peripheral walls, each associated with a corresponding one of the partition walls and disposed around the outer periphery of the base plate with gaps in between. These suction units are assembled, walls of one unit engaging with the base plate of another unit.
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