This state-of-the-art, cutting-edge machine is a four-roller plate rolling marvel, designed with precision and innovation. The top roller stands as the key component, showcasing its impeccable design and function. It serves as the vital primary drive, performing smooth and efficient rotational movements. Meanwhile, the lower roller elegantly moves up and down to guide the plate with finesse, ensuring friction aligns perfectly lengthwise. The two side rollers move gracefully up and down at an angle, imparting the desired plastic deformation to the steel plate. With its adjustable side roller, this machine achieves both symmetric and asymmetrical bending, resulting in a minimal flat end. It offers a superior advantage over traditional three-roller machines by eliminating the need for pre-bending procedures and devices, and providing rough leveling of the steel plate. Its indispensability is recognized in industries such as petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction: An architectural marvel,
The core structure of this sophisticated machine includes the upper roller device and a robust driving unit, lower roller devicee, a meticulously designed side roller apparatus, an advanced hydraulic drop end system, lubrication unit, left and right frames, chassis, and more.
(body frame drawing)
top roller and driving assembly
The Top roller device is a masterpiece comprising the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing, all working in harmony.
The top roller efficiently transfers torque via a connected hydraulic motor, initiating smooth and controlled rotation. A protective steel bushing is carefully fitted with the hydraulic drop end.
movement. The hydraulic drop end is equipped with a protective steel bushing for enhanced durability and safety.
lower roller and position inspection unit
The lower roller device is a sophisticated assembly of the lower roller, oil cylinder, lower roller bearing, and a self-aligning bearing.
Each sliding bearing block, supporting the lower roller, is aligned meticulously with the frame guide rail. It is mounted on two powerful oil cylinders, with the hydraulic system providing precise up-down movement power for the lower roller. The main oil cylinder operates at an impressive rated pressure of 16Mpa. Sensors meticulously track the up-down distance, displaying it on an intuitive LCD. The hydraulic system's adjustable pressure ensures precise hydraulic power to meet the desired rolling force with perfection.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is an intricate composition of the side roller's main oil cylinder, a self-aligning bearing, and other high-quality bearings.
Bearing blocks provide robust support to the side roller, with each side coordinating seamlessly with the frame's guide rail for precision.
The up-down movement of the side roller bearing block is driven through four strategically placed oil cylinders within the frame. Sensors, installed on the side rollers and frame, measure the movement with precision, displaying the results on an interactive LCD.
To achieve an exquisite cone shape, self-aligning bearings are utilized for both side and lower rollers. With the lower roller level and alignment becoming inclined, fine adjustments enable a snug and perfect fit between lower and side rollers, introducing a degree of inclination relative to the horizontal.
3-4, hydraulic drop end
The hydraulic drop end device is an engineering marvel, comprising oil cylinders, joints, bearing blocks, and more.
The hydraulic drop end system facilitates effortless and seamless product removal along the Roller shaft, ensuring efficiency.
Upon completion of hydraulic drop closure or opening, the oil cylinder's stroke is intelligently reset to zero for optimal performance.The power source is a reliable, high-performance hydraulic station, ensuring consistent power supply.
Balance device
Our state-of-the-art balance device is ingeniously crafted with a cutting-edge, compact structure, ensuring unparalleled performance. When the tipping rack gracefully slips off the bearing face of the top roller and initiates its tipping movement, this advanced balance device comes into play. As gravity naturally draws the top roller's end downwards, this expertly designed apparatus maintains perfect equilibrium by being thoughtfully positioned on the fixed side. This strategic placement, at a meticulously calculated distance from the fixed frame, is firmly anchored by high-quality screws, guaranteeing stability and exceptional operational efficiency.
(plate rolling drawing)
Hydraulic System
Our cutting-edge hydraulic system is a masterpiece, meticulously assembled from a high-precision gear pump, an intricate valve group, and premium auxiliary pipelines to ensure flawless operation, achieving the pinnacle of machine performance.
The hydraulic valve features the acclaimed Yuken superposition series, which ingeniously ensures that the pipeline layoutis
astonishingly intuitive, significantly reducing leakage and simplifying maintenance for exceptional efficiency that sets a new industry standard.
This sophisticated system architecture incorporates three distinct loops: the pressure adjusting loop, synchronization loop, and speed loop, each meticulously contributing to a harmonious and efficient operation, elevating the overall system functionality.
The pressure adjusting loop expertly modulates the system’s working pressure utilizing the main overflow valve, achieving a robust working pressure of 16Mpa, ensuring consistent performance and unwavering stability.
The synchronization loop deftly fine-tunes the in-sync movement of the lower roller through the precise flow divider and throttle valve, allowing for impeccable speed adjustments with precision engineering.
The speed loop artfully manages frame descent, reset operations, and speed calibrations with precision, through the adept use of the throttle valve, mastering control for optimal performance.
Electric Control System
Our electric control system is a marvel of engineering, featuring a seamlessly integrated electric cabinet, an advanced operation control table, and a versatile portable button box, all functioning at 380V/50Hz. Equipped with robust short circuit and overload protection for the main motor, and utilizing an AC contactor for managing both positive and reverse rotations. Through the power of PLC programmable control technology, this system boasts minimal relay usage, enhancing stability and longevity. Strategically placed buttons and indicator lights on the control table ensure the entire rolling process is streamlined and efficiently managed, with every operational aspect scrutinized with precision.
CNC System
The NC system is a paragon of reliability, designed with a rotational encoder and a high-reliability industrial controller, creating a steadfast and dependable control system that exudes confidence.
CNC Function
CThis advanced NC system offers unparalleled real-time monitoring, effortless data transmission, and dependable power-off memory throughout the entire rolling process, ensuring efficiency and reliability with cutting-edge technology.
The industrial control PLC meticulously inspects the lower position and both ends of the side roller, guaranteeing synchronization precision of an impressive ±0.15mm, a testament to its superior design.
The state-of-the-art programmable display provides comprehensive real-time visibility of the lower roller and side roller end positions,
and these parameters can be effortlessly configured and set to suit precise requirements, offering unparalleled customization.
With an extraordinary displacement transducer resolution of 0.10mm, the display precision reaches an impressive ±0.10mm, setting new benchmarks in measurement accuracy.
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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