The W11H three roll arc downward rolling plate machine is an efficient and high-precision plate rolling equipment. Its core feature is that it can complete pre bending and full circle rolling at both ends without turning the head in one feeding, and the remaining straight edges are extremely small.
1、 Core structure and working principle
Three roller full drive: The upper roller is fixed, and the two lower rollers rise and fall synchronously along the arc trajectory. All three rollers are active rollers, providing sufficient torque.
Hydraulic drive: The lower roller lifting is driven by a hydraulic cylinder, which is combined with an electronic/numerical control system to achieve precise positioning.
Pre bending principle: By the displacement of the lower roller arc, the two ends of the sheet are pre bent under asymmetric force without the need for auxiliary equipment.
2、 Core usage characteristics
1. Technological advantages: high efficiency, no straight edges, multifunctional
Complete the entire process of feeding in one go: After the board is placed, there is no need to turn or flip it, and the two ends are continuously pre bent, rolled round/curved, and shaped, greatly improving efficiency.
The remaining straight edge is extremely small: the curved motion allows the end of the sheet to fully bend, and the length of the straight edge is much smaller than that of traditional symmetrical three roll models.
Multi shape compatibility: can roll various workpieces such as cylinders, cones, arcs, ellipses, etc., suitable for industries such as pressure vessels, wind power towers, ships, etc.
Combining leveling/shaping: It can perform secondary rounding and local shaping on the rolled workpiece.
2. Transmission and precision: high torque, high precision, low friction
Three roll full drive: Three rolls rotate synchronously without slipping or relative sliding, with high transmission efficiency, suitable for thick plates and high-strength steel coils.
High positioning accuracy: synchronous control of the two lower roller arcs, displacement accuracy can reach * * ± 0.2mm * *, and the rolling accuracy is stable.
Rolling bearing design: The work roll adopts self-aligning roller bearings, which have low friction loss, low energy consumption, and long service life.
3. Operation and control: convenient, stable, and automated
Independent control panel: Centralized control of lifting, rotation, forward and reverse rotation, intuitive operation.
Numerical control/digital display options: real-time display and closed-loop control of displacement, pressure, and speed, reducing reliance on manual experience.
Easy flipping/unloading: The side bearing seat can be hydraulically flipped over for easy removal of finished cylinder components.
Stable operation: heavy-duty frame+hydraulic buffer, low vibration and noise, suitable for continuous production.
4. Scope of application and performance
Plate range: Cold rolled thickness is commonly 1-80mm, with a width of up to 8m, suitable for carbon steel, stainless steel, alloy plates, etc.
Energy saving and efficient: With full drive and low friction design, it saves 15% -30% energy compared to traditional models and increases production efficiency by over 40%.
Easy maintenance: The hydraulic and transmission system is modular, easy to maintain, and easily replaceable with vulnerable parts.
