This state-of-the-art machine is a four-roller plate rolling marvel, with its top roller serving as the central, pivotal component of the system. It serves as the primary drive, performing rotational movements that bring the machine to life. The lower roller moves with precision, artfully guiding the plate upward and downward to ensure perfect friction alignment along its length. The two side rollers move with graceful precision, ascending and descending at angles to impart the desired plastic deformation to the steel plate. With the ingenious adjustable side roller, this machine adeptly accomplishes both symmetric and asymmetrical bending, yielding a minimal flat end. This presents a significant advantage over three-roller machines, as it eliminates the need for pre-bending procedures and associated devices while providing rough leveling of the steel plate. Its impressive capabilities make it indispensable in various industries, including petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction:
The core structure of this sophisticated machine includes the upper roller device and driving unit, lower roller devicee, a side roller apparatus, a hydraulic drop end system, a lubrication unit, robust left and right frames, a sturdy chassis, and more.
(body frame drawing)
top roller and driving assembly
The Top roller device comprises the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing, seamlessly working in unison.
The top roller transfers torque through a connected hydraulic motor, initiating rotation. A protective steel bushing is elegantly fitted with the hydraulic drop end.
movement. The hydraulic drop end comes equipped with a protective steel bushing to ensure safe and efficient operations.
lower roller and position inspection unit
The lower roller device consists of the lower roller, a precision-engineered oil cylinder, lower roller bearing, and a self-aligning bearing.
Each sliding bearing block, supporting the lower roller, aligns perfectly with the frame guide rail. It is mounted on two powerful oil cylinders, with the hydraulic system providing the essential up-down movement power for the lower roller. The main oil cylinder operates at a robust rated pressure of 16Mpa. Advanced sensors track the up-down distance, displaying it clearly on an LCD. The hydraulic system's adjustable pressure ensures precise hydraulic power to meet the desired rolling force, enabling exceptional performance.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is intricately engineered, comprising the side roller's main oil cylinder, a self-aligning bearing, and other precision bearings.
Sturdy bearing blocks support the side roller, with each side coordinating seamlessly with the frame's guide rail to ensure fluid movement and stability.
The side roller bearing block's up-down movement is driven through four strategically placed oil cylinders within the frame. Sensors meticulously installed on the side rollers and frame measure the movement, with results displayed on an LCD for precise monitoring and adjustments.
To achieve an exquisite cone shape, self-aligning bearings are employed for both side and lower rollers. With the lower roller level and alignment becoming inclined, fine adjustments enable a snug fit between lower and side rollers, introducing an elegant degree of inclination relative to the horizontal plane.
3-4, hydraulic drop end
The hydraulic drop end device comprises precision oil cylinders, expertly engineered joints, robust bearing blocks, and more.
The hydraulic drop end system facilitates effortless product removal along the Roller shaft, ensuring seamless and efficient operations.
Upon completion of hydraulic drop closure or opening, the oil cylinder's stroke is reset to zero for optimal operation.The power source stems from a reliable and robust hydraulic station, ensuring consistent and powerful performance.
Balance device
Introducing our state-of-the-art balance device, a marvel of modern engineering, designed with an innovative and compact structure to ensure unmatched performance and reliability. As the tipping rack gracefully disengages from the top roller's bearing face and begins its elegant tilting action, our advanced balance device takes center stage. Guided by the natural force of gravity, the top roller's end is gently drawn downward, while this meticulously crafted apparatus maintains perfect equilibrium. Ingeniously positioned on the fixed side, it resides at an expertly calculated distance from the fixed frame, secured by high-quality screws. This strategic anchoring guarantees not only stability but also exceptional operational efficiency, truly setting a new standard in engineering excellence.
(plate rolling drawing)
Hydraulic System
Behold our cutting-edge hydraulic system, a true masterpiece in precision engineering. It's meticulously assembled from a high-precision gear pump, an intricate valve group, and premium quality auxiliary pipelines, all working in concert to deliver flawless operation every time.
The hydraulic valve incorporates the renowned Yuken superposition series, a marvel of design that ingeniously assuresa
pipeline layout that is astonishingly intuitive. This remarkable arrangement not only significantly reduces potential leakage but also enhances maintenance simplicity, ensuring exceptional efficiency and reliability.
Our sophisticated system architecture incorporates three distinct operations: the pressure adjusting loop, synchronization loop, and speed loop, each crafted with meticulous attention to detail to facilitate a harmonious and efficient operation.
The pressure adjusting loop is a marvel of engineering, expertly modulating the system's working pressure through the main overflow valve. This ensures a robust working pressure of 16Mpa, delivering consistent and reliable performance.
The synchronization loop is deftly engineered to fine-tune the synchronized movement of the lower roller. Featuring precise flow divider and throttle valve components, it allows for flawless speed adjustments, ensuring impeccable operation.
The speed loop is a testament to precision engineering, artfully managing frame descent, reset operations, and speed calibrations. Leveraging the adept use of the throttle valve, it provides unparalleled control and precision.
Electric Control System
Our electric control system is a marvel of modern engineering, featuring a seamlessly integrated electric cabinet, an advanced operation control table, and a versatile portable button box, operating at 380V/50Hz. It is equipped with robust short circuit and overload protection for the main motor and utilizes an AC contactor for managing both positive and reverse rotations. With the power of PLC programmable control technology, this system minimizes relay usage, enhancing both stability and longevity. Strategically placed buttons and indicator lights on the control table streamline the entire rolling process, ensuring it is managed efficiently and with precision, scrutinizing every operational aspect into detail.
CNC System
Introducing our NC system, a paragon of reliability and precision. Crafted with a rotational encoder and a high-reliability industrial controller, it creates a steadfast and dependable control system that is second to none.
CNC Function
CThis advanced NC system stands as a testament to modern innovation, offering unparalleled real-time monitoring, seamless data transmission, and a reliable power-off memory throughout the entire rolling process. It ensures efficiency and reliability at every stage, setting new benchmarks in the industry.
The industrial control PLC is a masterpiece, meticulously inspecting the lower position and both ends of the side roller to guarantee synchronization precision with an impressive accuracy of ±0.15mm, ensuring every operation is executed with perfection.
Our state-of-the-art programmable display provides comprehensive real-time visibility of the positions of both the lower roller and the side roller ends, with
parameters that are effortlessly configurable to precisely meet your requirements, offering flexibility and control like never before.
With an extraordinary displacement transducer resolution of 0.10mm, our system's display precision reaches an impressive ±0.10mm, providing unparalleled accuracy and reliability.
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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