Speed control method of motor in winding machine

The fully automatic winding machine is mainly used in wire winding phones and solenoid coils of different models and specifications selected in 3c products, such as speaker voice coil, mobile phone headset voice coil, VCM motor solenoid and other special materials. With the development of China's economy, the demand for the winding machine is becoming higher and higher. The electromagnetic coil winding company's requirements for the winding machine are stable performance, convenient operation, perfect function and good appearance.

Electromagnetic coil winding technology: first of all, according to the accurate positioning of the fixture to ensure the coaxiality and effective operation of the frame. In the process of electromagnetic coil winding, the speed starts from zero, and then rises slowly to ensure that the winding spindle can be stable, smooth and flutter-free at any rate. When winding the 0.018 mm silk-covered wire, make sure that the winding line is neat, no leakage, no damage to the surface, no pressure stack, so that it can be counted as up to the standard.

In order to adapt to the processing technology of the electromagnetic coil, the automatic winding machine needs to be equipped with the spindle speed control function, and the winding machine equipment should have different processing technology and its configuration is also different. the familiar types of spindle motors are AC motor, DC motor and servo drive motor, and the speed control methods chosen by these motors have different characteristics.

First, the speed control method of AC motor: this kind of motor itself does not have the function of speed control, it should achieve the function of speed control according to electromagnetic speed control equipment or additional frequency converter. In the winding machine equipment, the speed control method of the frequency converter is more common. According to the control system of the winding machine equipment, the frequency converter makes the motor have the function of speed control, and this method also has the corresponding role of energy saving and emission reduction.

Second, the speed control method of the DC motor: the DC motor can drive the motor operation only if the supply power is converted to DC current, so the DC motor is equipped with DC speed control board or brushless driver to drive the operating motor. because the motor is smaller, it should be used more in small wire winding machines.

Third, the speed control method of servo drive motor: it belongs to high-precision operation components suitable for high-precision wire winding machines and equipment, and is matched with special drivers to achieve closed-loop operation. The biggest feature of this kind of motor is constant rotation distance and closed-loop operation. It is used to meet the processing requirements of high-precision electromagnetic coil.

The automatic wire arrangement of the automatic winding machine has the advantages of accurate positioning and strong technological control. The whole process of traditional manual winding requires the addition of winding workers, the automatic winding machine achieves flat automatic wire arrangement, and the precision of machine equipment equipped with stepper motor and high-precision screw is much higher than that of manual winding. According to the special control system, the insulation operation process of electromagnetic coil and insulating paper, middle tap and both sides can be achieved.

The tension of the automatic winding machine is stable and the electromagnetic coil is compact. The machine equipment uses a special flat wire tension controller mechanism, which can maintain stability in the process of wire winding, rather than damaged enamelled wire. Proper tension is important for the generation of flat wire. The selection of automatic winding machine can increase the consistency of the total weight and quality of the electromagnetic coil, make the electromagnetic coil look good, and the overall compactness is high.