The working principle of the continuous wire drawing machine is to effectively control the second flow rate of metal in each drum. In the drawing process of steel wire, the steel wire will first be wound from a drum to a certain number of turns, and then directly enter the next wire drawing die through the tuning roller.
Because the wire drawing die will be subject to uneven wear, fluctuations in the speed of the motor, or some other factors, that will destroy the balance of the metal flow, the tension of the steel wire will definitely change. In fact, this change is mainly It will still reflect the swing amplitude of the tuning roller.
The working principle of the continuous wire drawing machine is to control the metal second flow rate of each drum to be equal.
During the steel wire drawing process, the steel wire winds around a drum for a certain number of times and then enters the next wire drawing die through the tuning roller. Due to uneven wear of the wire drawing die, fluctuations in motor speed, or other reasons, the balance of the metal’s second flow rate is destroyed. , which will inevitably cause changes in the steel wire tension.
This change is reflected as a small swing of the tuning roller. The displacement current sensor converts the swing displacement of the tuning roller into an electrical signal, which is transmitted to the PLC through the data collection A/D board.
After calculation by the algorithm model, its output value is passed through the data collection D /A board to the frequency converter to adjust the speed given value of the frequency converter to achieve the purpose of matching the speed of the front and rear drums.
The rotation speed of the product reel is the pilot speed, which is the soul that controls the speed of the entire equipment. It plays a connecting role. The tuning roller of the product reel controls the speed of the previous reel, and then the tuning roller of the previous reel controls the speed of the previous reel. To control the speed of the previous reel, and so on.
The I-beam take-up machine and the trunk-type take-up machine behind are also based on the speed of the product reel and use the displacement sensor of the tension control mechanism between the product reel and the I-beam take-up machine.
In this way, the take-up speed of the take-up machine is matched with the speed of the finished product, and ultimately the flow rate per second is equal.
Electric transmission control system of continuous wire drawing machine
- It is a continuous production equipment composed of multiple drawing heads. Through step-by-step drawing, it cold-draws steel wire, copper wire, welding wire, etc. to the required specifications at one time, and winds up the finished wire, which improves work efficiency. It is relatively high and the equipment occupies a small area.
- After each stage of drawing, the diameter of the wire changes, so the working linear speed of each drawing head also changes.
Depending on the configuration of the drawing die, the drawing speed of each drawing head also changes.
The benchmark of drawing speed is that the flow volume per second of the metal wire passing through the drawing die remains unchanged at each moment. The working speed of each drawing head is based on the above principle to ensure that the linear speed of each drawing head operates synchronously in proportion.
