Nowadays, with the advancement of process technology and the widespread popularity of frequency converters, frequency conversion control has begun to be widely used in straight-forward wire drawing machines, and PLC can be used to realize drawing variety setting, operation automation, production process control, real-time closed-loop control, Automatic meter counting, and other functions.

The straight-in wire drawing machine adopts the straight-in wire drawing machine technology of the frequency conversion speed control system, which is significantly energy-saving. The speed adjustment range is 30:1 during normal operation. At the same time, it can provide more than 1.5 times the rated speed at 5% of the rated speed. moment.

The system logic control of the straight-in wire drawing machine is relatively complex, with various linkage relationships, and is implemented by PLC. Not dependent on external controls.

The straight-in wire drawing machine determines the operating speed according to the operator’s panel settings. The analog signal of this speed enters the PLC. The PLC outputs the analog signal at a certain slope after considering the acceleration and deceleration time.

The purpose of this is mainly to meet the needs of some operations such as inching and threading.

The analog voltage signal output by the PLC is simultaneously connected to the AI2 (AI1 can also be used) input terminals of all frequency converters as the main speed-given signal.

The signals from the displacement sensors of each swing arm of the straight-forward wire drawing machine are connected to the corresponding drum drive inverter as the feedback signal for PID control.

According to the position of the swing arm in the middle, set a given value of PID yourself. This system is a very typical PID control system with feedforward, one level in series, and one level in series, with PID as the fine-tuning amount.

As my country’s technology in mechanical processing improves, the control technology of frequency converters is also constantly being vigorously promoted and applied.

Some of the inverted wire drawing machines and wet wire drawing machine equipment produced by some of our domestic manufacturers have already entered the wire drawing machine industry.

There are also large-roll wire drawing machines produced by some manufacturers that have been widely used in PC manufacturing, replacing imported equipment to a certain extent.

Other straight-in wire drawing machines are widely used in some domestic welding consumable manufacturers.