Blank feeder.

摘要

A blank feeder comprising a magazine having a delivery opening at one end and accommodating flat blanks as arranged closely side by side from the one end toward the other end thereof, transport means having a path of transport with a starting end at the delivery opening, the transport means including an arm with a suction member attached to a forward end thereof and a rotatable shaft extending in parallel to the widthwise direction of the blank in the delivery opening and having a base end of the arm fixed thereto, and means for unfolding each flat blank to a tubular form of square cross section while the blank is being transported by the transport means, the unfolding means having first and second blank unfolding claws provided at edge portions of the delivery opening so as to be individually engageable with opposite ends of the blank in the delivery opening. <IMAGE>