| 摘要 |
Preformed bag feeder for packaging machines which comprises buckets containing the preformed bags and first means that pick up the successive bags from the buckets and supply them, one by one, to fastening clamps located at a point of the trajectory of the transporter, the clamps allowing the pick-up of the successive bags, in the vertical position, by the transporter. The transporter comprises, following the fastening clamps, a positioner that carries out the horizontal and vertical alignment of the successive bags with respect to horizontal and vertical reference lines; arranging them in a fixed position wherein the lower extremity of the successive bags matches the horizontal reference line and the aforementioned bags are centered with respect to the vertical reference line.
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