Hydraulic Four Roller Plate Bending Machine 6000Mm Steel Plate 4 Roller 3 Roller Sheet Metal Rolling Machine With Cone Roll

Features of the CNC Hydraulic Four-Roller Plate Rolling Machine

This machine is designed for high efficiency, allowing the pre-bending of both plate ends and the complete rolling of a cylinder in a single setup without reversing the workpiece.

Its drive mechanism features the upper roller as the main drive. The lower and side rollers are hydraulically actuated for precise vertical adjustment. Power is transmitted to the plate through friction, while a central bearing supports the lower roller to ensure rigidity and prevent deflection.

Key Advantages:

1. High-Efficiency Drive: Utilizes self-aligning roller bearings similar to those in mill work rolls, resulting in low friction, minimal power loss, long service life, and reduced energy consumption.

2. Precision CNC Control: The synchronous movement of the lower and side rollers is automatically managed by an advanced CNC system. This ensures high accuracy in rolling cylinders and cones, with automatic control of tilt and feed parameters.

3. Advanced Control System: Equipped with a leading domestic CNC system featuring a visual display. It supports fundamental rolling calculations, process control, parameter storage, software protection, fault alarms, and intuitive human-machine dialogue.

This machine is a four-roller plate rolling machine. Its operational principle involves the coordinated movement of four rollers:

• Top Roller: Acts as the main drive, rotating to pull the plate through.

• Lower Roller: Moves vertically to clamp the plate and generate the necessary feeding friction.

• Side Rollers: Adjust up and down at an angle to the vertical axis, applying precise force to bend the plate to the desired curvature.

The significant advantage of this configuration is its ability to adjust the side rollers for both symmetric and asymmetric bending. This process minimizes the un-bent flat ends at the plate’s leading and trailing edges. Consequently, unlike three-roller machines, it eliminates the need for a separate pre-bending operation and dedicated equipment, while also providing a rough leveling function.

These efficiencies make it ideal for critical sectors like petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectric power, metal structure, and machinery industries.

Proceso de doblado de placas

1. Standard Plate Rolling Procedure

   1. Position and Clamp: Align the leading edge of the plate with the front main roller. Raise the lower roller to clamp the plate securely.

   2. Set for Pre-bending: Retract the plate so its leading edge is near the nip point of the upper and lower rolls. Lower the front side roller and raise the rear side roller to their pre-bending positions.

   3. Pre-bend the Edge: Drive the main rolls to rotate the plate. Pre-bend the leading edge to the required curvature.

   4. Set for Rolling: Lower the rear side roller and raise the front side roller to their starting positions for the full rolling cycle.

   5. Roll the Plate: Drive the main rolls to continuously roll the plate into a cylinder.

   6. Finish the Roll: Once the trailing edge of the plate approaches the nip point, stop rotation to complete the rolling process.

Why Choose Our Four-Roller Bending Machine?

• Substantial Energy Savings: A highly efficient hydraulic drive system cuts energy consumption by 40% compared to conventional machines.

• Maintenance-Free Operation: Permanent lubrication technology ensures bearings require no maintenance over their entire lifespan, saving time and cost.

• Maximum Productivity: Adjustable clamping pressure eliminates slippage, boosting your output by 50-80% over three-roller models.

• Exceptional Flexibility: Achieve tighter bends and form cylinders with diameters down to just 1.1 times the top roller’s size.

Parámetros de la máquina 

Control System Technical Features

• Core Architecture: Comprises a high-reliability industrial PLC and rotary encoders, forming a high-performance, stable control system.

• CNC Capabilities: Provides real-time monitoring, seamless data transfer, and a power-off memory function to retain settings.

• Precision Synchronization: The PLC automatically controls the lower and side rollers, guaranteeing a synchronization precision of ±0.15 mm.

• Human-Machine Interface (HMI): A programmable display shows real-time roller positions and allows for parameter setting.

• High-Accuracy Sensing: Displacement transducers offer a resolution of 0.10 mm and a display accuracy of ±0.10 mm.

• Smart Functionality: Equipped with an automatic self-diagnostic and judgment function.

Hydraulic four roller rolling Machine configuations