GZ electromagnetic vibration feeder

Electromagnetic vibration feeder is a kind of equipment that can control the amount of feed, can achieve uniform feeding, easy to control the output adjustment. Electromagnetic vibration feeder is to adjust the size of the amplitude to achieve automatic control of the size of the feed to 3000 times the frequency of non-stop vibration, through the SCR single-phase half-wave rectifier circuit, the supply of electromagnetic exciter an adjustable size of the pulsating DC, in order to achieve control of the size of the DC can control the amplitude size.
Adjust the amplitude of the electromagnetic vibration feeder generally have the following types:
1. Voltage type amplitude regulator. This regulator uses the regulator to adjust the voltage, the half-wave rectifier supply electromagnetic vibration feeder in the regulator capacity limit, only for small electromagnetic vibration feeder. Although the regulator structure is relatively simple, large adjustment range, but not easy to achieve automatic control.
2. Resistance type amplitude regulator. The principle of this regulator to adjust the amplitude of the electromagnetic vibration feeder is to change the load resistance value to change the input voltage of the vibrator feeder coil.
3. Variable inductance regulator. The advantage of this regulator is that the adjustment characteristics are smooth and the losses are small, but the power factor is low.
4. Variable capacitance regulator. This regulator is generally used only for micro electromagnetic vibration feeder, although the power factor is high, but the adjustment characteristics of uniformity is poor.
5. SCR rectifier regulator. The thyristor half-wave rectification control scheme is an ideal kind of electromagnetic vibration feeder amplitude adjustment device. It has the advantage of large adjustment range, can be achieved from the zero range to the rated value; to achieve closed-loop control, can make the device to achieve high control accuracy; control system power consumption is minimal, can be considered no loss, especially For the medium and large electromagnetic vibration feeder effect is more prominent; In addition, the controller also has low cost, small size, simple structure advantages.
Due to the advantages and disadvantages of each of the above-mentioned controllers, the usage of SCR rectifier to adjust the amplitude to achieve the feed, the adjustment method is simple and feasible and easy to achieve automatic control. SCR trigger circuit is also constantly evolving, from a simple RC capacitive trigger circuit, single junction transistor trigger circuit, dedicated integrated circuit trigger circuit to the current single-chip intelligent digital trigger circuit. The usage of single-chip microcomputer on electromagnetic vibration feeder amplitude control not only has the advantages of convenient control, simple and flexible, but also can greatly improve the technical parameters of the controlled amplitude, which can greatly improve the control accuracy of equipment transmission materials.