Introducing the pinnacle of metal plate shaping: the four-roller plate rolling machine. At the heart of this marvel is the top roller, which serves as the main drive. It performs rotational movements, while the lower roller executes an up-down motion, creating friction along the plate's length. The side rollers perform up-down movements at an angle, inducing the necessary plastic deformation in the steel plate. With the ability to adjust the side rollers for both symmetric and asymmetrical bending, the machine significantly reduces the flat end, outperforming traditional three-roller machines. This eliminates the need for pre-bending and leveling devices, streamlining operations and enabling rough leveling of steel plates. Enjoy extensive applications in the petroleum, chemical, boiler, shipbuilding, hydroelectricity, metal structure, and machinery industries.
Machine construction:
At its core, the machine features a robust structure comprising an upper roller device, driving device, and a lower rollerassembly.Additional components include a side roller device, hydraulic drop-end system, lubrication system, left and right frames, and chassis.
(body frame drawing)
top roller and driving device
The top roller device integrates the top roller itself, complemented by a hydraulic drop end, fixed bearing, hydraulic motor, and bearing.
The top roller transmits torque via the hydraulic motor connection, enabling
seamless rotational movement. The hydraulic drop end is fortified with a protective steel bushing for enhanced durability.
lower roller and position inspection device
The lower roller device incorporates the lower roller, oil cylinder, lower roller bearing, and self-aligning bearing.
Its sliding bearing block supports the lower roller, aligning perfectly with the frame guide rail. Mounted on dual oil cylinders, the hydraulic system supplies power for precise up-down movements. Operating at a rated pressure of 16Mpa, the lower roller's movement is monitored by sensors and displayed on an LCD. The hydraulic system allows for flexible pressure adjustments, providing the exact power needed for rolling.
(hydraulic drivers drawing)
side roller device
The side roller device consists of the main oil cylinder, self-aligning bearing, and additional bearing.
Its bearing block supports the side roller, coordinating flawlessly with the frame guide rail.
Through four strategically placed oil cylinders within the frames, the side roller bearing block achieves precise up-down movements. Sensors ensure accurate distance measurement, with data displayed on an LCD for real-time monitoring.
For cone-shaped rolling, self-aligning bearings are employed for both side and lower rollers. As the lower roller maintains a level position, or transitions to a slope, the rollers can be finely adjusted to achieve a snug fit, maintaining an ideal inclination.
3-4,hydraulic drop end
The hydraulic drop end device is an assembly of the oil cylinder, joint, bearing block, and oil cylinder bearing.
This sophisticated hydraulic drop end system facilitates easy product removal along the Roller shaft.
At the completion of hydraulic drop operations, the oil cylinder stroke returns to zero, ensuring seamless functionality. The hydraulic station provides the necessary power.
Balance device
Our Balance device is a marvel of compact engineering excellence. When the tipping rack slides off the bearing face of the top roller, inducing a tipping motion, gravity takes charge and causes the top roller to descend. To maintain perfect levelness of the top roller, the balance device is ingeniously mounted on the fixed side. This placement, just beyond the fixed side frame, optimizes function and efficiency. Moreover, it is securely anchored to the frame with robust screws, ensuring stability and reliability in operation.
(plate rolling drawing)
Innovative Hydraulic System
The heart of our Hydraulic System is a sophisticated assembly of a gear pump, a versatile valve group, and supporting pipelines, all crafted to deliver seamless operation and unmatched performance.
The Yuken superposition hydraulic valve series, a pinnacle of hydraulic design, is used in our system, ensuring unparalleled precision and efficiency. Pipeline Layout
Our layout is meticulously crafted to be simple, minimizing potential leakage points and streamlining maintenance tasks, making it a dream for operators.
Crafted with precision, the system is built from three sophisticated loops: the pressure adjusting loop, synchronization loop, and speed loop, each playing a critical role in optimizing performance.
The pressure adjusting loop is your gateway to customizing system working pressure via the main overflow valve. With a system pressure cap at 16Mpa, you have control over performance.
Our synchronization loop is a testament to engineering precision, allowing you to adjust the lower roller's elevation with ease, thanks to the flow divider valve and throttle valve, ensuring fine-tuned control over motion speed.
The speed loop takes command of frame descent and reset functions, with speed adjustments facilitated through the throttle valve for smooth and efficient operation.
State-of-the-Art Electric Control System
The electric control system is a sophisticated assembly of an electric cabinet, operation control table, and portable button box. Powered at 380V/50Hz, it features a main switch with robust short circuit and overload protections for the main motor. Operations are smoothly managed by an AC contactor for rotation directions, complemented by a PLC programmable control system known for reliability and longevity. Every button and indicator light you need for a seamless rolling process is conveniently located on the control table, granting comprehensive control over all operations and status checks.
Cutting-edgeNC System
Our NC system harnesses the power of a precision rotation encoder, paired with a high-reliability industrial controller, crafting a control system that thrives on stable, top-tier performance.
ControlNC Functionality at Its Best
CapabilitiesOur NC system is equipped with real-time monitoring, data transmission, and power-off memory functions, ensuring continuity and precision throughout the rolling process.
The industry control PLC automatically inspects and synchronizes the lower and side roller positions, achieving exceptional synchronization precision of ±0.15mm, ensuring a high level of accuracy.
The programmable display delivers real-time data on the lower roller position and the positions of both ends of the side roller, with customizable settings for operator convenience.
position adjustments with ease. The system is designed for precision and user-friendliness.
Our displacement transducer boasts a resolution of 0.10mm, with a display precision accuracy of ±0.10mm, setting new standards in measurement precision.
Empowered with an Automatic Self-judge function, our system identifies and resolves issues proactively, ensuring uninterrupted operation.
Renowned Manufacturer of Standard Parts
| NAME |
Manufacture |
| Bearings |
Type |
Double row aligning bearing
|
| Manufacture |
Wafangdian |
| Rollers |
Material |
42CrMo forging upper roller and 45# steel other rollers |
| Manufacture |
Nangang/Warwick Steel
|
| Body frame |
Material |
Q235A |
| Processing methods |
Welded structural parts, annealing stress - shot blasting, CNC boring and milling machine machining
|
| Manufacture |
Pully |
| Hydraulic driver |
Jieshite |
| Hydraulic motor |
Nantong tongde |
| Main electrical element |
SIEMENS |
| Hydraulic system |
Pump |
Type |
Gear pump |
| Manufacture |
Changyuan |
| Valve |
Manufacture |
YUKEN |
| cylinder |
Piston rod |
45 Forgings, Heat treatment HRC48-52
|
| Manufacture |
Nantong |
| Sealing |
Yx |
| Manufacture |
NOK/dingji |
Electric system
|
|
digital control system |
| Hydraulic motor |
Nantong tongde |
| Touch screen |
Haiwei 15.6' |
| PLC |
XINJE |
| Sensor |
Milante |
| Main electrical element |
SchneiderElectric/Siemens |
Audited Supplier 
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