Baotou steel strip with tension control system function introduction

Play clad steel strip with tension control system function description in strip steel production process, often require control the tension of the strip, For example, in heat treatment furnace during heat treatment) . Therefore, the thin strip continuous production of high precision constant tension control requirements are put forward. Given the strip tension control principle of hydraulic servo system. In steel strip tension control of the hydraulic servo system, the heat treatment furnace of steel belt tension by steel band traction roll group 2 and steel belt loaded roll group 8 to determine. Use dc motor M1 as traction, dc motor M2 as load, to cause the tension. If the position of the one part of regulating system is used to control tension, because of the large parts used in the system domain, time lag, low control precision can't meet the requirements, set up between the two roller set a tension hydraulic servo control system to control the accuracy. Its working principle is: each set at the bottom of the steering left and right sides of the roller force sensor, put it as a test Ya, two sensors signals generated by the average compared with a given signal value, when there is a deviation signal, the signal is amplified by power amplifier after losing to the electro-hydraulic servo valve. If the actual tension equal to the given value, the deviation signal is zero, the electro-hydraulic servo valve without output, keeping the hydraulic cylinder, floating roller. Deviation signal when tension increased, make the electro-hydraulic servo valve has a certain amount of opening, supply a certain flow, make the hydraulic cylinder moving up, floating roll up, reduce tension to a certain value. Conversely, when the tension reducing, the deviation signal made electro-hydraulic servo valve control hydraulic cylinder moves down, floating roll down, make tension increases to a certain value. So the system is a constant value control system. It ensure the tension meets the requirements of the strip, improves the quality of the steel.