A plate rolling machine is specialized equipment that forms metal plates, such as steel or aluminum, into cylindrical, arc-shaped, or curved profiles through continuous bending and pressing.
Through coordinated motion of the upper, lower, and side rolls, the machine applies pressure to induce plastic deformation and achieve the required curvature and dimensional accuracy.
The horizontal downward-adjustable three-roll plate rolling machine supports pre-bending and roundness correction.Its upper roll moves vertically, while the lower roll moves horizontally, enabling two-way pre-bending.
Structural Description of the Horizontal Downward-Adjustable Three-Roll Plate Rolling Machine
Upper Roll Assembly
- The upper roll assembly consists of the upper work roll, bearing housings, a balancing mechanism, and the main drive system.
- The upper work roll acts as the primary working element and provides sufficient strength, rigidity, surface hardness, and machining accuracy.These characteristics ensure reliable operation and long service life.
- Self-aligning roller bearings support both shaft ends of the upper work roll.
These bearings suit low-speed, heavy-load conditions and offer long life with low friction loss. - A balancing mechanism installs at the tail of the upper roll.It maintains roll balance during unloading and allows easy removal of rolled workpieces and shells.
- The main drive system locates on the right side of the upper roll and uses a hydraulic motor.
It transmits power to the upper work roll and supplies the torque required for plate rolling. - The vertical displacement of the upper work roll determines the curvature radius of the workpiece.
The main hydraulic cylinder mounted on the base controls this movement through NC synchronous control. - Displacement sensors on both bearing housings send precise position feedback to the PLC.
The PLC controls solenoid valves to achieve synchronized leveling, with accuracy within ±0.2. - Because the gear reducer features many meshing teeth, a high contact ratio, and coaxial input and output, the main drive remains compact.As a result, it operates smoothly with low noise.
Lower Roll Assembly
- The lower roll assembly includes the lower roll, left and right frames, U-shaped guide grooves, and horizontal travel cylinders.
- The lower work roll also serves as a primary working element and provides sufficient strength, rigidity, surface hardness, and machining accuracy.These features ensure reliable performance and long service life.
- Self-aligning roller bearings support both shaft ends of the lower work roll.
- The roll mounts on left and right moving frames and uses hydraulic cylinders on both sides for horizontal movement.NC synchronous control governs this movement.
- Displacement sensors on the left and right frames feed real-time position data to the PLC.
The PLC controls solenoid valves to maintain synchronized leveling during horizontal travel, with accuracy within ±0.2.
Technical Advantages of the Horizontal Downward-Adjustable Three-Roll Plate Rolling Machine
One-time feeding without turning, high-efficiency pre-bending and rolling
- The machine allows one-time feeding without intermediate turning.
- It completes end pre-bending and full rolling in a single setup.
- Therefore, it suits cylindrical, conical, and arc-shaped workpieces and greatly improves efficiency and accuracy.
Three-roll full drive for higher transmission efficiency
- The machine adopts a three-roll full-drive system instead of a single driven upper roll.
- All three work rolls drive synchronously, which increases efficiency and simplifies the structure.
Rolling friction instead of sliding friction, significant energy savings
- By replacing sliding friction with rolling friction, the machine reduces energy loss and heat generation.
- Consequently, it improves transmission smoothness and delivers notable energy savings.
Conical rolling capability with flexible operation
- A dedicated cone-rolling device enables easy forming of conical workpieces.
- Thus, the machine meets diverse shape requirements and offers strong process adaptability.
High overall rigidity, stable operation, and excellent accuracy
- The machine features high structural rigidity and a low center of gravity.
- Its work rolls exceed industry rigidity standards, which ensures minimal deformation and high forming precision.
High-quality hydraulic valve groups with reliable performance
- The hydraulic system uses valve groups from Yuci Yuken or well-known Taiwanese manufacturers.
- These valves feature cast flow channels, large flow capacity, low pressure loss, low heat generation, and fast response.As a result, they provide stable and reliable control for efficient operation.
Conclusion
The horizontal downward-adjustable three-roll plate rolling machine integrates high efficiency, energy savings, precision, safety, and multifunctionality.
Therefore, industries such as automotive, aerospace, shipbuilding, energy equipment, chemical processing, military manufacturing, bridges, pressure vessels, and steel structures widely use it.