Servo Hydraulics and Servo Vibration: Forging the "Dual-Core" Competitiveness of High-End Brick Making Equipment

In the building materials machinery industry, brick making equipment is undergoing a profound technological revolution. Traditional brick making machines have long been plagued by high energy consumption, low efficiency, and uneven product density. The introduction of servo control technology is fundamentally rewriting the rules of the game. If the machine structure and mold precision of a brick making machine are its "body," then **servo hydraulics and servo vibration systems are the "intelligent heart" and "power core" driving its efficient operation.** Together, they form a technological barrier that is difficult for current high-end brick making machines to replicate.

Servo Hydraulics: From "Brute Force" to "Precision Guidance"

Traditional brick making machines often use fixed-displacement pumps or variable-displacement pumps combined with solenoid valves. Like a strong man who only uses brute force, the motor always runs at full speed regardless of demand, wasting a large amount of energy as heat during standby and overflow. Statistics show that the effective power of traditional hydraulic systems in a complete brick making cycle is often less than 50%.

The innovation of the servo hydraulic system lies in replacing the traditional asynchronous motor with a combination of a servo motor and a gear pump. Its core logic is "on-demand oil supply": the controller precisely adjusts the speed and torque of the servo motor according to the real-time pressure and flow requirements of each stage of the process (such as material feeding, pressing, and demolding). This achieves breakthroughs in two dimensions:

Firstly, a revolutionary improvement in energy efficiency. In actual production, equipment using a servo electro-hydraulic control system can save more than 30% energy compared to ordinary motors. Under the "dual carbon" target (carbon reduction and emission reduction), this has direct economic and environmental value for energy-intensive building material manufacturers.

Secondly, a qualitative leap in control precision.In the molding and pressing stage, traditional hydraulic systems, due to large pressure fluctuations, easily lead to uneven density in the brick blanks. The servo hydraulic system, through closed-loop control and in conjunction with pressure sensors, can control the pressure fluctuations within an extremely small range. This is crucial for producing high-value-added products such as high-strength paving bricks and imitation stone bricks—only with precise pressure can the porosity and micro-cracks inside the brick be minimized, and the strength and appearance quality reach the standards of high-end building materials.

Servo Vibration: Breaking the "Resonance Curse" and the "Synchronization Dilemma"

If hydraulic systems solve the problem of "power," then vibration systems solve the problems of "density" and "efficiency." During brick-making, materials need to be rearranged and compacted through high-frequency vibration within the mold box. Traditional variable frequency vibration motors have large inertia during start-up and shutdown, easily causing frame resonance, resulting in high noise levels, short equipment lifespan, and ineffective transmission of vibration energy to the material.

The core value of servo vibration lies in its speed and precision.Servo motors have millisecond-level response speeds, completing start-up and shutdown within 0.2-0.3 seconds. This means completely avoiding the resonance zone—extremely short start-up and shutdown times, and the vibration frequency quickly surpassing the frame's natural frequency, significantly improving equipment stability.

For high-end multi-axis vibration systems, "synchronization" is another technological high ground.For example, Qunfeng Machinery's third-generation patented servo vibrator uses four-axis servo drive and achieves "ultra-dynamic response" through an integrated motion controller, ensuring that the phase and speed of the four motors remain synchronized at all times. If the vibration axes are not synchronized, the excitation forces will cancel each other out or even generate harmful torque; **precise synchronization, on the other hand, allows the excitation forces to be vector-superimposed, resulting in maximized molding efficiency.Data shows that this advanced servo vibration system can reduce energy consumption by more than 12%, increase excitation efficiency by more than 10%, and increase vibration start-up speed by more than 20%.

 Dual Strengths: Building a Competitive Moat for High-End Equipment

When servo hydraulics and servo vibration are deeply integrated into a single control system, the combined effect is unmatched by traditional equipment.

In terms of production efficiency, the extremely short response time of the servo system compresses the molding cycle. Combined with precise phase control, the equipment can seamlessly switch production parameters for different brick types, achieving flexible production. In terms of product quality, the precise hydraulic pressing and efficient servo vibration work together to result in higher brick density and less cement usage, producing higher-strength products from the same raw materials.

More importantly, this constitutes a technological ecosystem that is difficult to imitate.A mature servo control system cannot be achieved simply by purchasing servo motors and drivers. It requires equipment manufacturers to possess deep expertise in underlying algorithms (such as vibration phase synchronization algorithms and pressure closed-loop PID algorithms), system integration (matching hydraulic pipeline layout with electrical control strategies), and process databases (servo parameter combinations for different materials and brick types). Leading companies such as Quanzhou Machinery, Qunfeng Machinery, and Sanlian Machinery have all developed their own core patented technologies in the servo control field, which is the foundation for their ability to compete with established European and American manufacturers in the global market.

Conclusion

It is foreseeable that future competition in the brick-making industry will no longer be a simple contest of steel thickness or mold precision, but rather a competition of depth understanding of the underlying technologies and processes of electro-hydraulic servo control. Whoever can make servo hydraulics better "understand" pressing force, and whoever can make servo vibration better "understand" material density, will gain a commanding position in the high-end brick-making market. Servo hydraulics and servo vibration are the "dual-core" keys to unlocking this future.