Analysis of high-precision flow and pressure control technology of HXM Servo Injection Molding Machine

1. Importance of high-precision flow and pressure control
During the injection molding process, the precise control of flow and pressure directly determines the quality of the product. Excessive flow will cause the molten plastic to overflow or uneven molding, while excessive pressure will cause product deformation or produce undesirable internal stress. In order to ensure high-precision injection molding, the fluidity of the plastic and the pressure distribution in the mold must be accurately controlled, which requires the injection molding machine to have the ability of real-time feedback and automatic adjustment.

Through its unique closed-loop control system, the HXM servo injection molding machine uses pressure sensors and rotary encoders to monitor flow and pressure in real time, and can accurately control various parameters in the injection molding process, avoiding the precision errors caused by the inability to adjust in real time in traditional injection molding machines.

2. Closed-loop control system: real-time feedback and precision adjustment
The closed-loop control system of the HXM servo injection molding machine integrates pressure sensors and rotary encoders, and automatically adjusts the speed and torque of the servo motor by real-time feedback of flow and pressure changes. Compared with traditional injection molding machines, the HXM servo injection molding machine can accurately adjust the working parameters of each link in the injection molding process through this closed-loop control system, thereby ensuring high-precision injection molding.

Pressure sensor: The pressure sensor can detect the pressure changes in the mold in real time and feed the data back to the control system. In this way, the system can automatically adjust the drive parameters of the servo motor according to the real-time pressure data to ensure that the pressure in the mold remains within the set precise range and avoid product defects caused by pressure fluctuations.

Rotary encoder: The rotary encoder is responsible for monitoring the speed and direction of plastic flow during the injection molding process and providing the system with accurate flow data. The control system adjusts the injection speed based on this data to ensure that the molten plastic flows smoothly and evenly, avoiding unstable flow during the injection molding process.

3. Dynamic adjustment: adjust flow and pressure according to actual load
The servo motor of the HXM servo injection molding machine is highly responsive and can quickly adjust the speed and torque according to the actual load of the mold. During the injection molding process, the pressure and flow in the mold often change with the different stages of the injection molding process. For example, in the filling stage, the flow demand is high; while in the holding stage, pressure is more important. The HXM servo injection molding machine precisely controls the speed and torque of the servo motor, dynamically adjusts the flow and pressure, and ensures that the appropriate energy and pressure are provided at different stages, thereby ensuring the injection molding accuracy.

4. Dual guarantee of energy saving and high precision
The HXM servo injection molding machine not only ensures high-precision control, but also achieves significant energy saving effects. Traditional injection molding machines often maintain constant power output during the injection molding process, resulting in energy waste in many links. The HXM servo injection molding machine dynamically adjusts the power output and only provides power when needed. During the stages of maintaining pressure or cooling, the speed of the servo motor will decrease or even stop completely, achieving zero power consumption.

5. Precise control improves product quality
The high-precision flow and pressure control system of the HXM servo injection molding machine not only improves production efficiency, but more importantly, ensures the high quality of injection molded products. During the injection molding process, precise flow control can ensure the uniform injection of molten plastic, avoiding product appearance defects such as bubbles and lines; while pressure control ensures that the plastic in the mold is fully filled, thereby avoiding product defects such as shrinkage marks and warping.

In addition, the closed-loop control system of the HXM servo injection molding machine can adjust the flow and pressure in real time, avoiding the adverse effects caused by fluctuations in factors such as temperature, humidity, and raw materials, ensuring that each batch of products meets high-precision requirements, and is particularly suitable for the production of precision plastic parts with strict quality requirements.