When the printing machine starts up, the current of the motor will be 5-6 times higher than the rated value, which will not only affect the service life of the motor but also consume more power. The system will have a certain margin in the selection of the motor during the design. The speed of the motor is fixed, but in actual use, it sometimes runs at a lower or higher speed, so it is very necessary to carry out frequency conversion transformation. The inverter can realize the soft start of the motor, achieve the purpose of energy saving and speed regulation by changing the input voltage and frequency of the equipment, and can provide the equipment with protection functions such as overcurrent, overvoltage and overload. Printing Machinery
Although China's printing industry still has problems such as internal overcapacity, rising labor costs, large fluctuations in raw material prices, and companies in the industry being "big but not strong, small" The overall situation of the industry is stable and the prospects are bright.
The market for digital printing technology is growing due to the rapid growth in demand for inkjet printers, digital color printers and specialty imaging printers.