A Method for Adjusting Tail Angle of Coil Box
A technology of angle adjustment and coil box, which is applied in the field of hot rolling, can solve the problems such as the timeliness and accuracy of the observation of the hysteresis of the adjustment on-site abnormality, and achieve the level of automation of the production line and production efficiency, improve stability, The effect of avoiding the risk of opening the book
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Embodiment 1
[0042] A method for adjusting the angle of the coil box tail, comprising the following steps:
[0043] 1. The coil box tailing sequence is over, and the coil box uncoiling sequence is suspended;
[0044] 2. The infrared camera detects the positive shape of the side of the steel coil, the system recognizes the shape of the steel coil, and calculates the actual tail angle value θ through graphic fitting 实际 =142°, where θ 实际 It is the angle of the circle center corresponding to the top of the steel coil cross center line to the top of the steel coil tail.
[0045] 3. The system calculates δθ, δθ=θ 实际 -θ 目标 =7°, where θ 目标 =135°, the allowable deviation range is ±15°.
[0046]4. At this time, δθ meets the requirements of [-15°, +15°].
[0047] 5. The coil box executes the unwinding sequence.
Embodiment 2
[0049] A method for adjusting the angle of the coil box tail, comprising the following steps:
[0050] 1. The coil box tailing sequence is over, and the coil box uncoiling sequence is suspended;
[0051] 2. The infrared camera detects the positive shape of the side of the steel coil, the system recognizes the shape of the steel coil, and calculates the actual tail angle value θ through graphic fitting 实际 =160°, where θ 实际 It is the angle of the circle center corresponding to the top of the steel coil cross center line to the top of the steel coil tail.
[0052] 3. The system calculates δθ, δθ=θ 实际 -θ 目标 =25°, where θ 目标 =135°, the allowable deviation range is ±15°.
[0053] 4. At this time, when δθ>+15°, the 1# cradle roller needs to drive the steel coil to rotate forward for a certain arc length l, and the central angle corresponding to the arc length l is θ=|θ 实际 -θ 目标 |=25°, the current calculated coil diameter obtained from the system is 1550mm, according to l=θπd / 3...
Embodiment 3
[0057] A method for adjusting the angle of the coil box tail, comprising the following steps:
[0058] 1. The coil box tailing sequence is over, and the coil box uncoiling sequence is suspended;
[0059] 2. The infrared camera detects the positive shape of the side of the steel coil, the system recognizes the shape of the steel coil, and calculates the actual tail angle value θ through graphic fitting 实际 =90°, where θ 实际 It is the angle of the circle center corresponding to the top of the steel coil cross center line to the top of the steel coil tail.
[0060] 3. The system calculates δθ, δθ=θ 实际 -θ 目标 =-45°, where θ 目标 =135°, the allowable deviation range is ±15°.
[0061] 4. At this time, when δθ实际 -θ 目标 |=45°, the current calculated roll diameter obtained from the system is 1620mm, according to l=θπd / 360, the adjusted rotation distance of 1# cradle roller can be calculated l=635.85mm, at this time, the negative rotation speed of 1# cradle roller is υ=- 0.5m / s.
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