Application of injection molding machine industry

Injection molding machine industry application

the traditional injection machine (mold injection machine) is generally driven by oil pressure, and most of the oil pressure system adopts the return mode to control the pressure and flow (return the excess oil to the oil tank). Therefore, the working efficiency of the whole injection molding machine is very low, and the power consumption is very serious

at present, the way of energy-saving transformation is to add a frequency converter to control the speed of oil pump motor. The effect of saving electricity is good, generally about 20 ~ 75% This can reduce the cost of electricity for direct manufacturers Users can choose the plastic King AC variable frequency drive device

due to the relationship between the performance and equipment of the frequency converter, if the domestic non speed sensorless control technology is adopted, it is difficult to start quickly, so the production quantity will be reduced by about 3 ~ 10%, and the product quality will be affected. There are often tripping phenomena, the motor is hot and easy to burn, there are many wastes, the electric power factor is very low (it is necessary to increase the leading phase capacitor equipment), and there are many high-frequency interference (easy to misoperation), which customers need to pay special attention to

the universal brushless DC motor adopts the principle of permanent magnet brushless motor, which has the characteristics of fast start (faster than the full voltage start of AC asynchronous machine), more than 20% higher than the comprehensive efficiency of inverter driven asynchronous machine. The motor is not hot, low noise and low harmonic interference. It is the best driving device of high-precision and energy-saving injection molding machine

when brushless DC motor or plastic jiewang driving device is applied to high-precision and energy-saving injection molding machine, the proportional valve in China is still in the deep development stage of industrialization, informatization, urbanization, marketization and internationalization. The signal (0 ~ 800mA/24V) is provided as the input command, and the closed-loop constant pressure control system is formed by setting the oil pressure or flow command value for comparison The oil pump can only supplement the part with insufficient pressure, so it can achieve the purpose of energy saving and power saving. At the same time, the oil temperature is low, the service life is long, the motor temperature is relatively low, and the whole working environment can be improved. As an air-conditioned plant, it can save a lot of air-conditioning electricity cost

through the transformation of the whole plant and the adoption of Brushless DC motor or plastic jiewang products, customers can omit the leading phase capacitor device. At the same time, the capacity of power contract, transformer and transmission and distribution circuit can increase the utilization rate by about 30%, which is of great help to expand the capacity of power supply and reduce the cost

note; Shujiewang is a registered trademark of our company, which is specially used in the energy-saving transformation of injection molding machine

brushless DC motor should mainly adopt the method of multi-point grounding for injection molding machine. Advantages:

1 High energy saving injection molding machine is the best driving device

2. High precision injection molding machine is the best driving device

3. With the same size as asynchronous machine, it is easy to transform

4. The starting speed is faster than the power frequency power supply of asynchronous machine

5. The motor is not hot, with lower noise and less vibration

6. The pressure accuracy is the highest