Back to results
US 9,751,120 B2Granted
Method and apparatus for straightening metal bands
OwnerNorbert Umlaufinventor
Life of this patent
Estimating the term…
Abstract
The invention may relate, among other things, to a device for straightening a metal strip having two strip drives which are suitable together to apply tension on the metal strip to straighten the metal strip, wherein at least one of the strip drives is a linear drive, characterized in that the at least one linear drive has a positioning device such that the linear drive can be moved relative to the longitudinal axis of the device.
Claims9
A method for straightening a metal strip, the method including:
- inputting said metal strip to a first strip drive configured to accept the metal strip as an input;
- outputting said metal strip from a second strip drive configured to accept as an input the metal strip that has been passed through the first strip drive,
- wherein said first and second strip drives are configured to drive or brake the metal strip in a contact-based or contactless manner without bending the metal strip and to thereby apply a tension to the metal strip to straighten the metal strip;
- and
- positioning one or both of said first strip drive or said second strip drive relative to one another depending on a position of said metal strip or on one or more other properties of said metal strip.
2 more elements
A method for straightening a metal strip, the method including:
- inputting said metal strip to a first strip drive configured to accept the metal strip as an input;
- passing the metal strip through a deforming stand;
- and
- outputting said metal strip from a second strip drive configured to accept as an input the metal strip that has been passed through the deforming stand;
- wherein said first and second strip drives are configured to drive or brake the metal strip in a contact-based or contactless manner without bending the metal strip and to thereby apply a tension to the metal strip to straighten the metal strip;
- wherein a tensile force applied by said first and second strip drives on the metal strip is at least 99% of a 0.2% yield strength times a transverse section area of the metal strip, and
- wherein the deforming applied by the deforming stand on the metal strip is less than 1%.
4 more elements
Dependencies are inferred from the claim text.