Steel rolling loop control system

The invention provides a steel rolling loop control system, and relates to the technical field of steel rolling bars and wires, the steel rolling loop control system comprises a rolling mill set, a loop, a hot metal detector and a loop automatic control system, the rolling mill set is provided with a plurality of rolling mills, the loop is arranged between every two rolling mills, and the loop automatically adjusts the front and back tension of a rolled piece; a hot metal detector is arranged next to the back of the loop and is used for detecting the hot rolled piece passing through the loop and judging whether the hot rolled piece passes through the loop or not; a rolling mill and a hot metal detector in the rolling mill unit are both connected and communicated with the loop automatic control system, and the loop automatic control system controls the loop to rise or fall. The loop is controlled to rise and fall under multiple conditions, so that the loop runs more stably, and production accidents are avoided