Online roll changing device

Abstract

The invention discloses an online roller changing device which comprises a pushing and pulling device, a rail moving device, a rail device, a first moving mechanism and a second moving mechanism. The pushing and pulling device automatically pulls out an old working roller on a rolling mill and feeding a new working roller into the rolling mill, the rail moving device is inserted in the rolling mill to enable the rolling mill to unlock the old working roller and supports the old working roller and the new working roller in the process of roller changing, the rail device is arranged between the pushing and pulling device and the rail moving device, axial direction of the rail device is perpendicular to that of the pushing and rolling device, and the first moving mechanism which bears the old working roller and the second moving mechanism which bears the new working roller are matched on the rail device. The online roller changing device can automatically realize roller changing without manpower.

Description

technical field [0001] The invention relates to the field of metal processing equipment and manufacturing technology, in particular to an online roll changing device. Background technique [0002] In the continuous production process of steel strip, it is necessary to roll the strip through a rolling mill. The rolls (work rolls) on the rolling mill are easy to wear parts. After a period of use, the surface is seriously damaged, and the surface quality of the rolled strip decreases. Usually, when the strip steel base plate is good and under normal conditions, after producing 3000 tons of strip steel, it is necessary to replace the rolls. If the raw strip steel has cracks or waves, the frequency of roll replacement will be higher, and each time the rolls are replaced, It is necessary to hoist the roll from the rolling mill with a crane to replace it, so the production line must be stopped to complete, which affects production efficiency. At the same time, when the operation i...

AI Technical Summary

Problems solved by technology

The rolls (work rolls) on the rolling mill are easy to wear parts. After a period of use, the surface is seriously damaged, and the surface quality of the rolled strip decreases.

Usually, when the strip steel base plate is good and under normal conditions, after producing 3000 tons of strip steel, it is necessary to replace the rolls. If the raw strip steel has cracks or waves, the frequency of roll replacement will be higher, and each time the rolls are replaced, It is necessary to hoist the roll from the rolling mill with a crane to replace it, so the production line must be stopped to complete, which affects production efficiency. At the same time, when the operation is improper, it will also damage the online steel strip. Several workers are required for replacement, which takes a long time. More importantly It is due to the stoppage of the production line, which inevitably leads to residual waste in the annealing furnace

Images