Patent ID: 6253587
Filing Date: 2001-07-03
Classification: B21C,B21D,G02B

Abstract:
A device for regulating the compressing of metal tubing including at least one light wave guide lying within said metal tubing, a first straightening device for straightening said metal tubing wherein said first straightening device includes at least two deflection rollers, at least one of said deflection rollers being a moveable deflection roller, a feeding device for at least one of the deflection rollers wherein said metal tubing has a variable angle of wrap around said moveable deflection rollers, and a feed roller for unwinding said metal tubing on a first side of said straightening device and a delivery roller for winding said metal tubing on a second side of said straightening device, wherein said moveable deflection rollers are adjustable as a function of a difference between a feeding velocity of said metal tubing and a delivery velocity of said metal tubing, said device comprising:a measuring device for measuring multiple velocities of said metal tubing, said measuring device arranged on said first side and said second side of said straightening device to determine the difference in velocity of said metal tubing between said first side of said straightening device and said second side of said straightening device; anda drive device to control a feed roller drive and a delivery roller drive, said drive device located between said feed roller and said delivery roller, wherein said drive device changes the velocity on said first side and said second side of said straightening device to control the tensile forces on said metal tubing.