Straightening structure for lifting straightening rolls in advance for six-roll straightening machine

The invention provides a straightening structure for lifting straightening rolls in advance for a six-roll straightening machine, the straightening machine is provided with six straightening rolls, namely a No.1 roll, a No.2 roll, a No.3 roll, a No.4 roll, a No.5 roll and a No.6 roll, the No.1 roll, the No.2 roll and the No.3 roll are sequentially positioned above a straightening object, the No.4 roll, the No.5 roll and the No.6 roll are sequentially positioned below the straightening object, and the No.1 roll, the No.2 roll, the No.3 roll, the No.5 roll and the No.6 roll are sequentially positioned above the straightening object. Before the straightening object reaches the 1 # roller, the 1 # roller starts to lift, before the straightening object reaches the 2 # roller, the 2 # roller starts to lift, and before the straightening object reaches the 3 # roller, the 3 # roller starts to lift. The invention aims to provide the straightening structure for lifting the straightening rollers in advance for the six-r