Apparatus for manufacturing a metal strip
a technology for metal strips and manufacturing apparatuses, applied in metal-working apparatuses, metal rolling arrangements, measuring devices, etc., can solve the problems of difficult interpretation of corresponding strip tension, inability to recognize stress differences over the strip width in form of buckling or unevenesses, and achieve good indication of the quality of the finished strip
Inactive Publication Date: 2011-10-20
SMS GRP GMBH
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The invention is a device for manufacturing metal strips that can detect and control unevenness in the strip quality, even when it is under high tension. The device uses a light source and cameras to capture images of the metal strip, which can then be analyzed to determine the level of tension and any unevenness in the strip. This information can then be used to adjust the manufacturing process to improve the quality of the finished strip.
Problems solved by technology
It has been determined that specific measurement results under a corresponding strip tension are difficult to interpret because, dependent on the strip tension that is applied to the metal strip, flatness changes.
Therefore, based on the strip tension to which a rolling stock is subjected in a rolling process, the stress differences over the strip width in form of buckling or unevenesses cannot be recognized or are recognizable with much difficulty.
Method used
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Embodiment Construction
[0023]A metal strip 1 is rolled in the left region of the figure in a rolling region by working rolls 11 and 12 which are supported by two back-up rollers 13 and 14. Then, the metal strip 1 is advanced in a transporting direction F with a predetermined transporting speed, while being held at a certain strip tension S. The strip tension S is maintained by guiding the metal strip 1 linearly. It is guided, as it is particularly shown at the right side of the figure, by two rollers 4 and 5 in a S-shaped manner, so that a desired level of the strip tension S can be maintained between rolls 11, 12 and rolls 4, 5.
[0024]Due to the strip tension S, the metal strip 1 has a high degree of flatness, i.e., the surface unevenness is small.
[0025]Between two rolls 2 and 3, the metal strip 1 is guided flatly to a large extent. There, a light source 6 is arranged that illuminates the surface of the metal strip 1. Further, two cameras 7 and 8 are provided at two different locations and an take two pic...
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Abstract
An apparatus for manufacturing a metal strip (1) includes a number of rolls (2, 3, 4, 5) over which the metal strip (1) is guided in a transporting direction under a strip tension that insures that the strip is flat to a large extent at least between two rolls (2, 3) and a light source (6) operable for illuminating an area of the metal strip (1) as it moves in the transporting direction. Two cameras (7, 8), which are located in a region of the light source (6) at a distance from each other, are operable for photographing the area of the metal strip (1) illuminated by the light source from two different directions.
Description
RELATED APPLICATION[0001]This application is a continuation of application Ser. No. 11 / 886,056 filed Sep. 6, 2007.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The invention relates to an apparatus for manufacturing a metal strip in which the metal strip is guided over a number of rolls under such strip tension and is advanced in a transporting direction so that it is flat to a large extent at least between two rolls.[0004]2. Description of the Prior Art[0005]During rolling and skinpass rolling of a metal strip, the flatness, together with the thickness and cleanliness of the strip, is a decisive factor. Therefore, it is necessary to undertake inspection during manufacturing of a metal strip to insure quality of the production, wherein, if necessary, based on the results produced by inspection, the manufacturing process should be modified.[0006]To the end, in conclusion of a rolling process, often, the metal strip is subjected to the flatness measurement, wherein u...
Claims
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IPC IPC(8): B21B38/00
CPCB21B38/06B21B38/02
Inventor DENKER, WOLFGANG
Owner SMS GRP GMBH