Deflector roll for measuring and checking the flatness of sheet metal stretched in motion
AssigneeSecim
InventorAndre Quehen
Life of this patent
Estimating the term…
Abstract
A deflector roll for measuring and checking the flatness of sheet metal under tension and as it passes round the roll comprises a non rotatable inner portion carrying axially spaced radial stress detectors in axially spaced measurement zones spaced by neutral zones, and a continuous rotatable outer envelope to be contacted by the sheet and to transmit the radial stresses to the detecting devices, the envelope having an axially variable flexibility such that it is less flexible in those portions which cover the measurement zones than in those portions which cover the neutral zones.
Claims14
A deflector roll for measuring and checking the flatness of sheet metal stretched in motion, said roll comprising:
- a non rotatable inner portion providing axially spaced measuring zones spaced by neutral zones;
- a plurality of devices for detecting radial stresses exerted by the sheet during its passage over said roll, said devices being mounted on said inner portion in said measuring zones;
- an outer portion to be contacted by the sheet and capable of transmitting radial stresses executed by the sheet to said measuring devices, said outer portion being formed by a one piece envelope having a continuous outer surface and a flexibility which varies in said axial direction such that the zones of said outer portion which cover said measuring zones of said inner portion have a flexibility under radial forces which is less than the flexibility of the zones of said outer portion which cover said neutral zones of said inner portion;
- and
- means mounting said outer portion on said inner portion for rotation relative thereto.
Dependencies are inferred from the claim text.