Hidaka Seiki Kabushiki Kaisha

Hirofumi Baba

Toshiyuki Nanaarashi

Masanao Karasawa

Kazuyuki Tominaga

Yasuhiro Endo

The present invention aims to provide a manufacturing device for heat exchanger fins that is capable of adjusting for differences between a number of punches and a number of through-holes or cutaway portions in an actual product without causing a metal strip to sag or having punches punch the same positions twice. As a solution, a mold () is provided with a plurality of punches () and a plurality of dies () that form a plurality of through-holes or cutaway portions along a conveying direction of a metal strip () and also includes a feeding apparatus () that feeds the formed plurality of through-holes or cutaway portions in the feeding direction in a single feeding operation, and a cutoff device () that cuts the metal strip () into predetermined lengths has an equal number of cutoff punches () to a number of the punches and dies disposed along the conveying direction of the metal strip (), includes a plurality of cutoff punch driving units () that respectively and individually operate the cutoff punches (), and also includes a control unit () that controls each of the cutoff punch driving units ().

Manufacturing apparatus for heat exchanger fins

A flattened tube fin manufacturing apparatus includes: a press apparatus; an inter-row slit apparatus forming metal strips of a product width that are arranged in the width direction; a first feeding apparatus feeding the metal strips cut by the inter-row slit apparatus downstream; a cutoff apparatus that cuts the metal strips formed by the inter-row slit apparatus into predetermined lengths to form flattened tube fins; and a second feeding apparatus that feeds the flattened tube fins downstream. The plurality of metal strips outputted from the inter-row slit apparatus advance into the cutoff apparatus after entering a downwardly sagging state. The flattened tube fin manufacturing apparatus further includes a control unit controlling a feeding amount of the second feeding apparatus based on a feeding amount of the first feeding apparatus.

Growing community of inventors

Tokyo, Japan

Hirofumi Baba