Energy Saving Servo Inverter Control Cabinet Box For Injection Molding Machine

ACI DLT Series Injection Molding Machine Servo Energy-Saving Cabinet

Injection Molding Machine Servo Energy-Saving Cabinet is a device that achieves energy efficiency in injection molding machines through servo drive technology. By integrating core components such as servo motors, drivers, and pressure sensors, it dynamically adjusts motor speed and power output based on real-time process demands, significantly reducing energy consumption and enhancing production efficiency. Below is an overview of its working principle, technical features, application advantages, and selection guidelines:

I. Working Principle

The servo energy-saving cabinet for injection molding machines operates based on servo drive technology and a closed-loop control system. Its core lies in the coordination of servo motors and drivers, with the following process:

1. Pressure and Flow Detection: Real-time monitoring of pressure and flow requirements via pressure and flow sensors.
2. Servo Drive Adjustment: The driver dynamically adjusts the speed and torque of the servo motor to match the actual demand for flow and pressure from the oil pump.
3. Energy Savings: During low-flow stages such as pressure holding and cooling, motor speed is reduced to minimize energy loss; during high-flow stages like injection and clamping, the motor responds rapidly to provide sufficient power.

II. Technical Features

1. High Energy Efficiency
   • Energy Savings of 30%-65%: Compared to traditional fixed-displacement pump systems, servo energy-saving cabinets avoid overflow losses by supplying oil on demand, significantly reducing energy consumption.
   • Energy Recovery: Some systems support braking energy recovery to further reduce electrical waste.
2. High-Precision Control
   • Pressure Fluctuation ≤±0.5bar: Rapid servo system response ensures high-precision pressure control, enhancing product quality stability.
   • High Repeatability: Precise flow and pressure control reduce part weight deviations.
3. Extended Equipment Lifespan
   • Lower Oil Temperature: Reduced full-speed circulation of hydraulic oil lowers oil temperature, extending the lifespan of oil seals, hoses, and other components.
   • Reduced Mechanical Wear: Soft starts and stops of the motor minimize mechanical shocks and equipment failures.
4. Improved Production Efficiency
   • Fast Response: Servo motors accelerate from 0 to maximum speed in just tens of milliseconds, shortening cycle times.
   • Enhanced Stability: Stable system pressure reduces downtime for maintenance.
5. Environmental Benefits
   • Noise Reduction: Smooth motor operation reduces noise by approximately 10dB, improving the working environment.
   • Lower Oil Temperature: Reduced cooling water consumption and cooling system load.

III. Application Advantages

1. Full-Process Energy Savings
   • Suitable for all injection molding processes, including clamping, injection, pressure holding, cooling, and mold opening, with particularly significant savings during pressure holding and cooling stages.
2. Strong Compatibility
   • Can be integrated with injection molding machines from various brands and supports retrofitting of old machines without replacing the original control system.
3. Low Maintenance Costs
   • Simple servo motor structure and low failure rates reduce maintenance costs and downtime.
4. Fast Investment Return
   • For example, a 1300T injection molding machine with a 40% energy savings rate can recover investment costs in approximately 8 months, yielding significant long-term economic benefits.

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