Water tank type wire drawing machine

The water tank type wire drawing machine is a small continuous production equipment composed of multiple drawing heads. It is drawn step by step, and the drawing head is placed in the water tank, and finally the steel wire is pulled to the required specification. On the domestic several major water tank type wire drawing machine manufacturers, the general configuration of about 20 drawing head. After each level of drawing, the wire diameter of the steel wire has changed, so the working line speed of each drawing head should also change. In the whole drawing process, only one electric motor is required to be driven by mechanical transmission or gear box. Depending on the configuration of the drawing die, the drawing speed of each drawing head will also change. The benchmark for the drawing speed is the constant flow volume in seconds of the wire passing through the drawing die at each moment, I .e. to make the following equation hold.

PD 2v1=pd 2v2

In the formula, D -- diameter of incoming wire

v1 -- Line speed of incoming wire

d -- diameter of outgoing wire

V2 -- Line speed of outgoing line of poetry

The working speed of each drawing head of the water box type wire drawing machine is based on the above formula to ensure the synchronous operation of each drawing head. Since the drawing process of the water box type wire drawing machine is completely completed by the mechanical shaft drawing, and these mechanical shafts are driven under the same spindle, the entire drawing system relies on the speed difference between the drawing wheels and the tension on the line to control Synchronous coordination work.

Coolant is required for heat dissipation during work. The winding part is dragged by a low-power motor, and the winding tension needs to be kept constant during winding. If the tension fluctuates in this section, the winding on the winding I-wheel will be uneven.

The winding link of the water box type wire drawing machine is the core link in the equipment control system, which also directly affects the quality of the steel wire. For winding, there are usually several control methods:

1) The tension roller is used for adjustment, and the tension during winding is guaranteed by the weight of the tension roller itself.

2) Using torque control, the tension during winding is determined by the given size of the torque, but the tension of the winding will be unbalanced due to the change of the winding diameter.

3) For the water tank wire drawing machine with higher process requirements, the first control method is usually adopted, and the PID correction function of the inverter ACS510 is used to control the tension roller adjustment.