Coil Tension Control of Stainless Steel Strip Roller Cutting Machine

During the processing process of the stainless steel strip hobbing machine, the raw strip steel is longitudinally cut into multiple narrow strips of specified width by the hobbing machine, and then coiled and arranged by an I-shaped material reel driven by a coiling motor. In the hobbing process of the stainless steel strip hobbing machine, the raw strip steel must go through three processes: unwinding, hobbing, and slitting and coiling. Among them, the unwinding and coiling process are two important links of the whole production line. According to the requirements of the rolling cutting process, it is necessary to ensure that the stainless steel strip is unloaded and coiled under the condition of constant linear speed and constant tension.
Among them, the control of coiling tension is an important factor to ensure the quality of finished products. Improper coiling control will directly cause the stainless steel strip to be twisted, deformed or even cracked. The hobbing machine uses a high-performance vector control frequency converter to drive the executive motors of the unwinding, hobbing and winding axes respectively. The hobbing machine transmission is used as the reference speed, and a mathematical model combining speed feedback and tension feedforward correction is established. Realize constant tension coiling of stainless steel strip.