Patent ID: 9009953
Filing Date: 2015-04-21
Classification: B21D,Y10T

Abstract:
1. A flattened tube fin manufacturing apparatus that manufactures flattened tube fins in which cutaway portions, into which flattened tubes for heat exchanging are inserted, are formed from one side toward another side in a width direction, the manufacturing apparatus comprising: a press apparatus equipped with a mold apparatus that forms the cutaway portions in an unmachined thin plate of metal to produce a metal strip; an inter-row slit apparatus which cuts the metal strip, in which the cutaway portions have been formed, into predetermined widths to form a plurality of metal strips of a product width that are arranged in the width direction of the metal strip, which is a direction perpendicular to a conveying direction of the metal strip and which is a narrower direction; and a cutoff apparatus that cuts each of the plurality of metal strips of the product width formed by the inter-row slit apparatus into predetermined lengths, wherein a plurality of box-like magazines, in each of which an upper surface has an opening and other surfaces are surrounded by the wall portions, are arranged in the width direction downstream, on a downstream side of the cutoff apparatus in the conveying direction of the metal strip, so as to stack the flattened tube fins, in each of which a left-right weight balance is off centered, formed by the cutoff apparatus cutting into the predetermined lengths, the cutoff apparatus is internally equipped with a feeding apparatus that feeds the metal strips formed by the mold apparatus and the inter-row slit apparatus in a conveying direction, the flattening tube fin manufacturing apparatus further comprises a shuttle feeder apparatus that is separate to the feeding apparatus and grasps front ends on a downstream side in the conveying direction of the metal strips formed by the mold apparatus and the inter-row slit apparatus and pulls the metal strips in the conveying direction, and the shuttle feeder apparatus includes: an elongated guide rail that extends along a pulling direction; a base portion that moves along the guide rail, and a clamp unit with two hook portions disposed in an up-down direction so as to sandwich, in the up-down direction, an end portion of a metal strip provided on the base portion.