Herman F Flint

US Patent:

55883451, Dec 31, 1996

Filed:

Nov 22, 1993

Appl. No.:

8/156263

Inventors:

Lawrence A. Franks - Sturgis MI
Galen B. Harman - La Grange IN
Herman Flint - Sturgis MI

Assignee:

Burr Oak Tool & Gauge Company - Sturgis MI

International Classification:

B26D 522
B26D 900
B65H 3506

US Classification:

83 95

Abstract:

A sheet metal working apparatus having a supply mechanism adapted to supply an elongated and flat strip of sheet metal stock to an inlet of a punch press and along a longitudinal axis of the strip. An intermittently operable drive device is provided for effecting an intermittent movement of the strip of sheet metal stock relative to a punch press. A set of tools are provided on the punch press as well as a second intermittent drive device for effecting a metal working engagement of the tools with the sheet metal stock during intervals of time between the movement of the sheet metal stock to produce a continuous strip of a finished sheet metal fin stock. Guide structure on the apparatus guides the continuous finished sheet metal fin stock from an outlet of the punch press and effects a holding of the fin stock slidingly thereto until a predesignated length of fin stock has exited the punch press whereupon the fin stock becomes severed to a predefined length and an ejector mechanism forcibly moves the severed fin stock away from the guide structure toward a device for collecting a plurality of finite length segments of fin stock.