Patent ID: 9120191
Filing Date: 2015-09-01
Classification: B21D,B23P,Y10T

Abstract:
1. A flattened tube fin manufacturing apparatus comprising: a press apparatus equipped with a mold apparatus that forms, in an unprocessed metal plate, cutaway portions, into which cutaway portion flattened tubes for heat exchanging are inserted, which cutaway portions are formed so as to extend from one side of the metal plate toward another side of the metal plate in a width direction of the metal plate, wherein the metal plate is moved in a transfer direction as the metal plate passes through the press apparatus, and wherein the width direction crosses the transfer direction at a right angle; an inter-row slit apparatus which cuts the metal plate, in which the cutaway portions have been formed, into predetermined widths to form a plurality of metal strips that are arranged side-by-side in the width direction; and a cutoff apparatus that cuts each of the plurality of metal strips of the predetermined width formed by the inter-row slit apparatus into predetermined lengths, wherein the plurality of metal strips of the predetermined width outputted from the inter-row slit apparatus are provided so as to advance into the cutoff apparatus after entering a downwardly sagging state, the flattened tube fin manufacturing apparatus further comprises a support portion that contacts undersides in a vertical direction of the plurality of metal strips of the predetermined width in the downwardly sagging state to support the plurality of metal strips of the predetermined width, the support portion includes a plurality of contact surfaces that contact respective undersides of each of the plurality of metal strips of the predetermined width in the vertical direction, the respective contact surfaces are formed so as to be inclined so that a first side in the width direction of each respective contact surface is located above a horizontal plane and an opposite side of each respective contact surface that is spaced from the respective first side in the width direction of the respective metal strip is located below the horizontal plane, and a respective side wall is provided at one width-wise side of each of the respective contact surfaces.