China Hydraulic 4 Rollers Plate Rolling Machine

As a core equipment in the field of modern metal sheet forming,the China Hydraulic 4 Rollers Plate Rolling Machine is widely used in high-end industrial scenarios such as shipbuilding,pressure vessels,aerospace,etc.due to its high precision,efficiency,and strong adaptability.As the world's largest producer and user of plate rolling machines,China's hydraulic four roll plate rolling machine technology has reached the international leading level.
1、Mechanical Structure:Precision Forming System with Four Roller Collaboration
The hydraulic four roll plate rolling machine consists of an upper roll,a lower roll,two side rolls,a frame,and a transmission system.Its core design is to achieve progressive bending and forming of the sheet metal through the coordinated motion of the four rolls.
Upper and lower rollers
Upper roller:It is an active roller that is driven vertically by a hydraulic cylinder to adjust the rolling radius;Simultaneously equipped with a main motor to drive rotation and provide the required torque for sheet rolling.
Lower roller:It is a fixed support roller that cooperates with the upper roller to form an initial clamping force,ensuring that the sheet does not slide during the rolling process.
Two side rollers are independently arranged on both sides of the lower roller,driven by hydraulic cylinders to move horizontally and equipped with tilt adjustment function.

Function:The China Hydraulic 4 Rollers Plate Rolling Machine controls the bending trajectory of the plate edge through the displacement and angle changes of the side rollers,achieving the formation of complex curved surfaces such as conical and elliptical shapes.

The frame adopts high-strength cast steel or welded structure to withstand the huge load during the rolling process;
The transmission system transmits motor power to the upper roller through gears and couplings,ensuring synchronous rotation and torque output.
2、Hydraulic system:the"nerve center"of power and control
The China Hydraulic 4 Rollers Plate Rolling Machine is the core power source of the four roll plate rolling machine,which drives various actuators to complete actions through high-pressure oil.Its design directly affects the accuracy and stability of the equipment.
hydraulic pump station
The variable displacement piston pump is driven by a motor to provide high-pressure oil.
Equipped with auxiliary components such as coolers and filters to ensure oil cleanliness and temperature control,extending system life.
Upper roller lifting hydraulic cylinder
Double acting hydraulic cylinders are symmetrically arranged on both sides of the frame,and the smooth lifting and lowering of the upper rollers are achieved through synchronous valves;
Pressure compensation technology:The China Hydraulic 4 Rollers Plate Rolling Machine adopts proportional valves or servo valves to dynamically adjust the oil flow rate,compensate for mechanical clearance,and ensure the upper roll position accuracy of±0.1mm.
The independent hydraulic cylinder drives the horizontal movement of the side rollers,and is coupled with displacement sensors to achieve closed-loop control.
Tilt adjustment mechanism:By using hydraulic motors or differential hydraulic cylinders to achieve fine adjustment of the side roller angle,it meets the requirements of asymmetric surface winding.
Pressure holding and unloading circuit
During the rolling process,the hydraulic system maintains pressure stability through an accumulator to prevent sheet rebound;
The unloading circuit quickly releases pressure when the equipment stops,reducing energy consumption and heat generation.
3、Control logic:a leap from manual to intelligent
The Chinese hydraulic four roll plate rolling machine adopts a digital control system of PLC+touch screen,combined with sensors and algorithms,to achieve automation and intelligence of the rolling process.The operator inputs parameters such as sheet thickness,width,yield strength,and target curvature radius through the touch screen.
The China Hydraulic 4 Rollers  machine has built a high-precision and highly flexible sheet forming system through the deep integration of mechanical,hydraulic,and control.With the advancement of the"Made in China 2025"strategy,equipment is rapidly evolving towards intelligence and greenization,providing Chinese solutions for global high-end equipment manufacturing.In the future,with breakthroughs in new materials and processes,hydraulic four roll plate rolling machines will show broader application prospects in fields such as deep-sea exploration and new energy.