Apparatus for detecting the shape of a strip
AssigneeHitachi, Ltd.
InventorsMasaki Ishimoto, Toshiyuki Kajiwara
Life of this patent
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Abstract
Apparatus wherein a plurality of rings disposed in the direction of the width of a strip are pressed against the surface of the strip being rolled, and the distribution in the direction of the width, of the components of the tension of the strip as act on the respective rings is detected, thereby to detect the shape of the strip, characterized in that a plurality of cylindrical springs are fitted in the interspace between the inner periphery of each ring and the outer periphery of a shaft which rotates along with the rings, and that a gap sensor which detects the amount of eccentricity of the corresponding ring attributed to the component of the tension of the strip is arranged in the vicinity of the outer periphery of each ring.
Claims6
Apparatus for detecting the relaxed shape of a running strip while it is under tension, comprising:
- (a) a plurality of rings axially aligned adjacent each other to be arranged across the width of the strip with the outer peripheries of the rings in direct contact with a surface of the strip;
- (b) a shaft extending axially through said rings and having means supporting opposite ends of said shaft for rotation about an axis;
- (c) separate spring means fixed in and aligned over a space defined between the inner periphery of each of said rings and the outer periphery of said shaft for resiliently supporting said rings relative to said shaft, so that said rings may independently bodily move relative to said shaft radially in the direction perpendicular away from the strip so as to bodily rotate eccentrically with respect to said shaft by an amount proportional to the tension in respective portions of the strip contacting the rings;
- and
- (d) a corresponding plurality of gap sensing means, all fixedly mounted outside of said rings, at positions respectively opposed to the outer periphery of said rings, and for detecting the amount of the bodily eccentric movement of said rings, and said gap sensing means producing signals corresponding to said amount proportional to the tension in the strip.
Dependencies are inferred from the claim text.