The four-roller plate rolling machine is a specialized mechanical device designed for the precise forming and bending of metal sheets. It can pre-bend and roll cylindrical, arc-shaped, or conical workpieces in a single operation with the aid of auxiliary devices. Its high efficiency, versatility, and automation make it widely used in industries such as shipbuilding, energy, aerospace, heavy machinery, and metal fabrication.
what is 4-Roller Plate Rolling Machine
The four-roller plate rolling machine is a mechanical equipment specially used for forming and bending metal sheets.This machine can pre-bend and roll various specifications of cylindrical and arc-shaped workpieces at one time. The four-roller plate rolling machine The machine is built with four rollers.
Structural Composition
- Upper Roller (Active Roller): Fixed in position and driven by a hydraulic motor.
- Lower and Side Rollers (Driven Rollers): Move vertically or horizontally under hydraulic cylinder control, relying on friction between the steel plate and the rollers for rotation.
- Bearing Bodies and Oil Cylinders: Installed within the left and right welded frames, which serve as the machine’s main body and are mounted on an integral base.
- Tipping Oil Cylinder: Enables turning and resetting of the front bearing body of the upper roller.
- Pusher Device: Pushes the finished workpiece out once rolling is complete.
This robust structure ensures smooth operations, high accuracy, and long service life.
Operating Principle
The machine achieves pre-bending by lifting the lower roller to clamp the steel plate between the upper and lower rollers. The side rollers then move inward to bend and shape the ends of the plate. After pre-bending, continuous rolling is performed to achieve the required cylindrical, arc, or conical form with excellent roundness and surface quality.
Six Application Features of the Four-Roller Plate Rolling Machine
- One-Time Loading : Rolling is completed after a single setup, with no need to turn the plate, while enabling pre-bending on both ends.
- All Three Working Rollers are Main Drive Rollers :Prevents slippage during rolling and expands the machine’s capability to handle a wider range of plate thicknesses and materials.
- Hydraulic Control :Upper roller lifting and lower roller translation are fully driven by hydraulic systems, ensuring precise and stable operation.
- Microcomputer Control :Equipped with automatic leveling and LCD display for enhanced accuracy, efficiency, and user convenience.
- Integrated System :Combines mechanical, electrical, and hydraulic functions, with interlocked actions for safety and reliability.
- Safety Protection :Built-in overcurrent and overload protection systems safeguard both operators and equipment during operation.
Advantages and Applications
- High Accuracy and Roundness: Delivers consistent forming precision, making it ideal for producing pressure vessels, boilers, and aerospace components.
- Efficiency in Mass Production: Enables rapid processing of large volumes of plates, reducing labor intensity and improving throughput.
- Versatility in Material Handling: Suitable for carbon steel, stainless steel, aluminum alloys, and other metals used in heavy industries.
- Ease of Operation: CNC systems simplify control, reduce operator errors, and improve repeatability.
Conclusion
The four-roller plate rolling machine is a high-performance forming solution capable of pre-bending and rolling plates into a variety of shapes with excellent accuracy and efficiency. Its integrated mechanical, hydraulic, and electrical systems make it reliable and safe, while its automation functions enable advanced control for modern manufacturing needs.