The working principle of the wire drawing machine is:

The small continuous production equipment composed of multiple drawing heads can cold-draw the steel wire to the required specifications at one time through step-by-step drawing, so the work efficiency is relatively high. However, since the diameter of the steel wire changes after each level of drawing, the working line speed of each drawing head should also change. Depending on the configuration of the drawing die, the drawing speed of each drawing head also changes. The benchmark of the drawing speed is that the second flow volume of the steel wire passing through the drawing die remains unchanged at each moment, even if the following formula is established: πr2×v1=πr2×v2 r: the diameter of the incoming steel wire v1: the linear velocity r of the incoming steel wire: The diameter v2 of the outgoing steel wire: the linear speed of the outgoing steel wire. The working speed of each drawing head of the wire drawing machine is based on the above formula to ensure that each drawing head runs synchronously.

However, the above description is based on the ideal steady-state working process. Due to the error of the mechanical transmission and the clearance of the mechanical transmission, as well as the dynamic working process of starting, accelerating, decelerating, and stopping, each pulling head cannot maintain Synchronization, therefore, most of the straight wire drawing machines now have tension sensors, which dynamically measure the tension of the steel wires between each drawing head, and then convert the tension into a standard signal, and use this standard signal to feed back to the speed-adjusting frequency converter. The device uses this signal for closed-loop PID process control, superimposes the adjustment amount calculated by PID on the main speed, and keeps the tension at each tension detection point constant, which also ensures the straight-forward wire drawing.

The high-end wire drawing machine developed and produced by introducing, absorbing and digesting technology is suitable for drawing various metal wires below Ф14mm. Welding wire, aluminum clad steel wire, prestressed steel wire, hose steel wire and various low, medium and high carbon steel wires, etc.