Method of monitoring the distance between the rolls of a roll pair, and means for use in carrying out the method
First Claim
1. A method for monitoring the distance between the rolls of roll pairs in a rolling line that includes a plurality of sequentially arranged roll units where each roll unit includes a pair of rolls and a roller guide for leading the stock into said roll unit during a rolling operation, characterized by providing each of the roller guides with vibration measuring means, and by continuously reading the signals delivered by the vibration measuring means and carrying out a frequency analysis to determine the distance between the rolls in the roll pair that immediately precedes and/or immediately follows said roller guide.
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Accused Products
Abstract
The invention relates to a method of monitoring the distance between the rolls of the roll pairs in a rolling line that includes a plurality of mutually sequential roll units where each unit includes a roll pair and a roller guide for leading a bar section or billet into said unit during a rolling operation. According to the method, the roller guides are provides with vibration measuring means for continuously sensing vibrations in the roller guides. These vibrations are analyzed with respect to frequency, for determining the distance between the rolls of the roll pair that immediately precedes or follows the roller guide.
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Citations
11 Claims
- 1. A method for monitoring the distance between the rolls of roll pairs in a rolling line that includes a plurality of sequentially arranged roll units where each roll unit includes a pair of rolls and a roller guide for leading the stock into said roll unit during a rolling operation, characterized by providing each of the roller guides with vibration measuring means, and by continuously reading the signals delivered by the vibration measuring means and carrying out a frequency analysis to determine the distance between the rolls in the roll pair that immediately precedes and/or immediately follows said roller guide.
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9. A method of monitoring a distance between a pair of rolls in a roll unit that also includes a roller guide that leads stock into the roll unit during a rolling operation, the method comprising the steps of:
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continuously measuring vibrations of the roller guide;
analyzing frequencies of the vibrations; and
determining the distance between the pair of rolls based on the frequency analysis. - View Dependent Claims (10)
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11. A roll unit for a rolling line, the roll unit comprising:
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a pair of rolls;
a roller guide that leads stock into said pair of rolls during a rolling operation;
a vibration measuring device that measures vibration of the roller guide; and
a signal processing device for analyzing frequencies of the vibrations from said vibration measuring device and for determining a distance between rolls in said pair of rolls based on the frequency analysis.
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Specification