APPARATUS AND METHOD FOR THE CONTINUOUS AND PROGRESSIVE SHAPING OF METAL STRIPS TO GIVE A PROFILE WITH LONGITUDINALLY VARYING CROSS SECTION

摘要

Disclosed herein is an apparatus for the continuous and progressive shaping of metal strips to produce a formed metal strip whose cross sectional dimensions vary along a longitudinal axis thereof. The apparatus includes a device for shaping the metal strips, wherein the device has at least one tool set with at least two rotatably mounted and mutually associated tools, wherein the tools each have a pressure face disposed along an outer circumference thereof with a contour configured to shape the workpieces. The contour of the pressure face of at least one tool is not axially symmetric. In order to be able to cost-effectively produce workpieces or profiles with a variable cross section, in particular profiles with a closed cross section, it is proposed that the contours of the pressure faces of all tools, but at least of one tool set, are concave in order to generate a profile having a closed cross section.

主权项

1. An apparatus for the continuous and progressive shaping of metal strips to produce a formed metal strip whose cross sectional dimensions vary along a longitudinal axis thereof, comprising:
a shaping device; and at least one tool set operably disposed in said shaping device and configured to shape the metal strips, said at least one tool set including,
at least two mutually associated shaping tools rotatably mounted in the shaping device and configured to cooperatively work together to shape the metal strips,a circumferential pressure face having an axially asymmetric contour defined in an outer circumference of each of said at least two shaping tools and configured to shape the metal strips to be fed thereby so as to conform to the shape of the contour, wherein said contours of said pressure faces of at least one of said at least one tool set are concave and are configured to produce shaped metal strips having a profile with a closed cross section.