Feeding apparatus for metal strips and manufacturing apparatus for heat exchanger fins

A feeding apparatus for metal strips that feeds a wide metal strip, in which a plurality of through-holes are formed with predetermined gaps in a length direction and a width direction, into a cutter and pulls narrow metal strips, which are formed by cutting the wide metal strip between the through-holes in the length direction out of the cutter,

• the wide metal strip being a wide metal strip that has punched-out portions formed between the through-holes, and the narrow metal strips being narrow metal strips where corner cut portions, where side edges are cut away, are formed,
• the feeding apparatus comprising:
• a feeding-in apparatus that is provided on an entrance side of the cutter and feeds the wide metal strip, in which the punched-out portions are formed between the through-holes, into the cutter;
• and
• a pulling-out apparatus that is provided on an exit side of the cutter and pulls out the narrow metal strips, which have been cut out by the cutter and in which the corner cut portions, where the side edges are cut away, are formed, from the cutter,
• wherein the feeding-in apparatus includes:
• a first reciprocating body provided so as to be capable of moving reciprocally with respect to the cutter;
• and
• first pins provided on the first reciprocating body and capable of moving up and down so that front end portions thereof are inserted into and withdrawn from the through-holes of the wide metal strip, the front end portions being inserted into the through-holes of the wide metal strip when the wide metal strip is fed into the cutter,
• wherein the pulling-out apparatus includes:
• a second reciprocating body provided so as to be capable of moving reciprocally with respect to the cutter;
• and
• second pins provided on the second reciprocating body and capable of moving up and down so that front end portions thereof are capable of being inserted into and withdrawn from through-holes of the narrow metal strips, the front end portions being inserted into the through-holes of the narrow metal strips when the narrow metal strips are pulled out of the cutter, and
• wherein the feeding apparatus further comprises:
• a driving apparatus that drives the first reciprocating body and the second reciprocating body in a predetermined direction;
• and
• a linking member that causes the first reciprocating body and the second reciprocating body to move in concert so that the wide metal strip is fed into the cutter with the narrow metal strips being pulled out from the cutter.