What are the functions of disc flying shears in rolling mill?

Although the role of the shearing machine in the rolling machine is not a key position, but for the accuracy of the finished product, the shape plays a crucial role, different types of rolling machines to select the corresponding flying shear, so that the entire production line can achieve the target size and accuracy. With the development of continuous plate mill, section mill and billet mill and the improvement of the productivity of flying shear, the application of flying shear is more and more extensive.

The main types of flying shear are disc type flying shear, double drum type flying shear, crank rotary type and pendulum type flying shear. Then the disc flying shear is used in the small rolling mill shop, and the rolled pieces are roughed before the cold bed is installed, so that the rolled pieces entering the cold bed are too long; In addition, it can also be installed in front of the finishing mill group to cut the rolled parts to ensure the smooth rolling process of the finishing mill group.

So what are flying shears? Flying shears are composed of two or more pairs of disc-shaped blades, and the axis of the disc is equal to the speed of the steel. With the shear in its original position, the steel travels along the inlet conduit to the left of the shear. When the steel acts on the flag switch or the light guide tube, the inlet pipe and the steel tilt to the right, and the steel enters the middle of the two disks for cutting.

When the blade is lowered, the conduit returns the steel to its original left position, after which the lower blade rises again. The disadvantage of this kind of flying shear is that the incision is inclined, but it has little impact on the cutting head or the rough cutting rolled pieces before the cold bed, because this kind of shear machine is reliable, simple structure, and the shear speed can reach more than 10m/s, so it is widely used in the small rolling mill workshop.