Time：2025-07-29 09:36:03
Brick making machine is a device that processes raw materials such as clay, concrete, fly ash, etc. into standard bricks through mechanical processing. Its core principles involve material processing, forming, demolding, and curing. The following is a detailed explanation of the working principle and key steps of the brick making machine:
1、 Core working principle
The brick making machine compresses loose raw materials into high-density, tightly structured bricks through mechanical pressure, while using molds to control the shape and size of the bricks. The entire process can be divided into the following stages:
Raw material preparation and mixing
Raw material selection: Choose clay, concrete, fly ash, slag, construction waste, etc. based on the type of brick.
Crushing and screening: Large raw materials need to be crushed to the appropriate particle size by a crusher and impurities removed through a sieve.
Mixing and Wetting: After adding water or additives (such as adhesives or curing agents), mix thoroughly with a mixer to ensure that the raw materials are evenly wetted.
Forming stage
Fabric: The mixed raw materials are evenly filled into the mold cavity through a conveyor belt or screw conveyor.
suppress:
Hydraulic/mechanical pressure: Apply high pressure (usually 10-50MPa) to the raw materials inside the mold through a hydraulic system or mechanical transmission (such as a crank connecting rod), discharge air, and compress particle gaps.
Vibration assistance: Some brick making machines vibrate synchronously during pressing to rearrange the raw material particles and improve the compactness of the bricks.
Mold design: The shape of the mold determines the specifications of the bricks (such as standard bricks, hollow bricks, porous bricks, etc.), and the material should be wear-resistant and easy to demold.
Demoulding and output
Demoulding mechanism: The molded bricks are pushed out of the mold cavity through an ejection device or mold flipping.
Automatic conveying: After demolding, the bricks are transferred to the curing or stacking area by conveyor belts or robotic arms.
Maintenance and solidification
Natural curing: Concrete bricks need to be left to stand in a damp environment for 28 days and gradually harden.
Steam curing: accelerates the curing process and shortens the production cycle (such as steam pressed bricks).
Sintering process: Clay bricks need to be fired at high temperatures (900-1200 ℃) to enhance their strength.
2、 Differences in types and principles of brick making machines
According to the power source and process, brick making machines can be divided into the following types:
Hydraulic brick making machine
Principle: Utilizing a hydraulic system to provide stable high pressure, suitable for producing high-strength bricks (such as concrete bricks).
Features: high pressure, short molding cycle, high degree of automation.
Mechanical brick making machine
Principle: Pressure is generated by driving the crank connecting rod or gear transmission through an electric motor, which is cost-effective and suitable for small production lines.
Features: Simple structure, easy maintenance, but poor pressure stability.
Vibration brick making machine
Principle: During the pressing process, the mold is synchronously vibrated to tightly arrange the raw material particles and improve the compactness of the bricks.
Features: Suitable for producing lightweight porous bricks, reducing the amount of raw materials used.
Fully automatic brick production line
Principle: Integrated automation control of the entire process including raw material processing, mixing, molding, demolding, and maintenance.
Characteristics: High efficiency, stable quality, but high investment cost.
3、 Key technical parameters
Pressure range: 10-50MPa (determines brick strength).
Molding cycle: 15-30 seconds/time (affecting production efficiency).
Mold lifespan: It can usually be pressed more than 100000 times (requiring regular maintenance).
Raw material moisture content: It needs to be controlled at 8% -15% (to avoid cracking or insufficient strength).
4、 Application scenarios
Construction industry: producing standard bricks, hollow bricks, pavement bricks, etc.
Environmental protection field: Utilizing solid waste such as construction waste and fly ash to make bricks and achieve resource recycling.
Municipal engineering: Manufacturing special functional bricks such as permeable bricks and slope protection bricks.
5、 Development Trends
Intelligence: Integrating sensors and PLC control systems to achieve real-time monitoring and automatic adjustment.
Energy saving: Optimize the efficiency of hydraulic systems and reduce energy consumption.
Multifunctionality: Develop a universal brick making machine with replaceable molds to meet diverse needs.
Through the above principles, brick making machines convert loose raw materials into structurally stable and accurately sized bricks, providing efficient and environmentally friendly building materials solutions for the construction industry.
