Introducing our groundbreaking four-roller plate rolling machine, a pinnacle of modern technology designed to redefine precision and efficiency. At its core lies the top roller, a vital component that drives the innovative performance of this engineering marvel. This component serves as the central power driver, executing seamless rotational movements, while the dynamically adjustable lower roller ascends and descends, masterfully guiding and aligning the steel plate lengthwise with exceptional precision. The pair of side rollers, with their elegant angular motion, meticulously sculpt the desired plastic deformation into the steel plate. With the flexibility of the adjustable side roller, this machine offers both symmetric and asymmetrical bending, minimizing flat ends. It surpasses traditional three-roller designs by eliminating the need for pre-bending devices, while providing rough leveling—a vital advantage in sectors like petroleum, chemical processing, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Comprehensive Machine Construction:
Crafted with an advanced architecture, the machine's core structure encompasses the upper roller mechanism and driving unit, lower roller mechanism,side roller assembly,a sophisticated hydraulic drop-end system, a lubrication network, robust left and right frames, a sturdy chassis, and much more.
(Refer to body frame drawing for visual representation)
High-precision top roller and driving assembly
The high-performance top roller device boasts an array of components, including the top roller, a hydraulic drop end, fixed bearing, and a powerful hydraulic motor, all seamlessly integrated with a protective bearing.
Transmitting torque with flawless efficiency, the top roller engages a connected hydraulic motor to initiate precise rotation. The hydraulic drop end features a protective steel bushing, ensuring safe
and secure movement. This assembly is equipped to maintain optimal protection through its steel bushing.
State-of-the-art lower roller and inspection unit
The lower roller assembly is an exquisite combination of the lower roller, oil cylinder, lower roller bearing, and an innovative self-aligning bearing.
Each meticulously crafted sliding bearing block supports the lower roller, aligning seamlessly with the frame guide rail. Mounted on dual oil cylinders, the hydraulic system powers the lower roller's vertical movement with a rated pressure of 16Mpa. Integrated sensors accurately track this movement, with real-time data displayed on an LCD screen. Adjustable system pressure guarantees the precise hydraulic force required for superior rolling performance.
(Refer to hydraulic drivers drawing)
Precision-engineered side roller apparatus
The highly sophisticated side roller device features a main oil cylinder for the side roller, self-aligning bearings, and additional bearings, all working in perfect harmony.
Expertly designed bearing blocks provide unwavering support for the side roller, with each side working in perfect coordination with the frame's guide rail.
Four strategically positioned oil cylinders within the frame drive the precise up-down movement of the side roller bearing block. Advanced sensors on both the side rollers and frame meticulously measure motion, with results accurately displayed on an LCD screen.
For achieving the perfect cone shape, our system employs self-aligning bearings for both side and lower rollers. By adjusting the inclination of the lower roller while aligning it at an angle, a seamless fit with the side rollers is ensured, introducing the necessary inclination relative to the horizontal plane.
3-4, Hydraulic Drop End System
Comprising oil cylinders, joints, bearing blocks, and more, this system is a masterpiece of engineering.
The exquisite hydraulic drop end system enables effortless and efficient product removal along the roller shaft with unparalleled ease.
Following the completion of hydraulic drop closure or release, the oil cylinder stroke resets to zero, ensuring precision and reliability.The system derives power from a meticulously engineered and highly dependable hydraulic station.
Advanced Balancing Device
Our cutting-edge balance device has been ingeniously designed with a remarkably compact structure, ensuring unmatched performance and precision. As the tipping rack gracefully disengages from the top roller's bearing face, setting off its tipping motion, this state-of-the-art balance device springs into action. Harnessing the natural force of gravity, the apparatus maintains perfect balance as it is strategically placed on the fixed side. This placement is at a meticulously calculated distance from the fixed frame, secured by high-quality screws, ensuring stability and exceptional operational efficiency.
(plate rolling drawing)
Hydraulic System
Our innovative hydraulic system is a masterpiece, crafted meticulously from a high-precision gear pump, a sophisticated valve group, and premium auxiliary pipelines, ensuring seamless operation.
The hydraulic valve boasts the highly acclaimed Yuken superposition series, ingeniously ensuring the pipeline layoutis
incredibly intuitive, drastically reducing potential leakage while simplifying maintenance to achieve exceptional operational efficiency.
This sophisticated system architecture integrates three distinct loops: the pressure adjusting loop, synchronization loop, and speed loop, each meticulously contributing to smooth and efficient operations.
The pressure adjusting loop expertly modulates the system's working pressure through the main overflow valve, achieving a robust operating pressure of 16Mpa and ensuring consistent performance.
The synchronization loop finely adjusts the synchronized movement of the lower roller with precision using the flow divider and throttle valve for perfect speed calibration.
The speed loop skillfully manages frame descent, reset operations, and speed calibration, utilizing the throttle valve with exceptional precision.
Electric Control System
Our electric control system stands as a marvel of engineering, featuring a seamlessly integrated electric cabinet, an advanced operation control table, and a versatile portable button box, all operating at 380V/50Hz. It comes with robust short circuit and overload protection for the main motor, utilizing an AC contactor for managing both positive and reverse rotations. With the power of PLC programmable control technology, this system boasts minimal relay usage, enhancing its stability and longevity. Strategically placed buttons and indicator lights on the control table streamline the entire rolling process, ensuring each operational aspect is managed with precision.
CNC System
The NC system is a paragon of reliability, designed with a rotational encoder and a high-reliability industrial controller, forming a steadfast and dependable control system.
CNC Function
CThis advanced NC system offers unparalleled real-time monitoring, effortless data transmission, and reliable power-off memory throughout the rolling process, ensuring efficiency and dependability.
The industrial control PLC meticulously inspects the lower position and both ends of the side roller, guaranteeing synchronization precision with an impressive ±0.15mm accuracy.
The state-of-the-art programmable display provides comprehensive real-time visibility of both the lower roller and side roller end positions,
and these parameters can be effortlessly configured and adjusted to meet precise requirements.
With an extraordinary displacement transducer resolution of 0.10mm, the display precision reaches an impressive ±0.10mm.
Automatic Self-Judge Function
Manufacturer of the 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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