According to the warp arrangement required by the process and the corresponding number of bobbins per twist, the bobbins required per twist are arranged on the bobbin in sequence. Warping is to divide the total number of warps required by the fabric into several strips in a certain arrangement, and wind them parallel to each other on the warping drum. After all the strips are wound on the warping drum, all the strips are unwound on the knitting shaft at the same time.

During the winding process of the strip, the big drum makes a lateral movement at the same time for each turn to ensure that the warp yarns of the strip form a good winding and orderly cylindrical shape. Therefore, for the sprocter warping machine, the transverse movement speed of the large drum, namely the displacement, is an important factor to ensure that the warping shaft packing surface is smooth, the winding density is uniform, and the weaving shaft is well formed.

Slitting machine manufacturers to the whole roll or the whole piece of raw materials for fixed length slitting processing, such as plastic packaging materials, packaging cartons, steel plates, film, leather, wood chips and other slitting processing, need to use fixed length slitting control. Fixed length slitting control is divided into static and dynamic slitting: when the set length reaches the accurate stop, then static slitting processing, after slitting restart operation;

Because the slitting machine can do torque control, so it can complete the control of winding constant tension. V series inverter provides three analog input ports, AUI, AVI, ACI. The three analog inputs can be defined as a variety of functions, so one can be selected as a torque given and the other as a speed limit. 0~ 10V corresponds to the frequency converter output 0~ rated torque of the motor, so that constant tension control can be completed by adjusting the voltage of 0~ 10V. And du Yu stripe machine, the part of the calculation of coil diameter is calculated through the tension controller, of course, with PLC architecture to achieve is no problem. That is to say, the tension can be set on the man-machine or text, and the winding diameter can be calculated by PLC, T=F*D/2, so the torque size of the motor output can be calculated. The torque given end of the V series converter can be output through the analog quantity.