Unveil the brilliance of our cutting-edge four-roller plate rolling masterpiece. At the heart of this marvel lies the paramount top roller, expertly designed to lead the operation with precision. This ingenious component serves as the primary drive, executing seamless rotational movements. The lower roller performs an elegant dance, moving up and down to meticulously guide the plate, ensuring perfect friction and alignment along its length. Witness the side rollers' graceful ascent and descent at an angle, skillfully imparting the desired plastic deformation to the steel plate. With an adjustable side roller, experience the machine's prowess in achieving both symmetric and asymmetrical bending. This innovation results in a minimal flat end, surpassing three-roller machines by eliminating cumbersome pre-bending processes and devices while offering rough leveling of the steel plate. Essential in diverse sectors such as petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery, this machine is your gateway to excellence.
Machine construction:
Crafted with sophistication, the machine's core structure encompasses the upper roller device and driving unit, lower roller device, side roller apparatus, hydraulic drop end system, lubrication unit, left and right frames, chassis, and more, forming a harmonious ensemble.
(body frame drawing)
top roller and driving assembly
The Top roller device is a marvel in itself, comprising the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing, all working in concert.
Torque is seamlessly transferred through a connected hydraulic motor, setting the top roller into rotation. A fortified protective steel bushing is elegantly fitted with the hydraulic drop end.
movement, ensuring durability and precision.
lower roller and position inspection unit
The lower roller assembly features the lower roller, oil cylinder, lower roller bearing, and a self-aligning bearing, all synchronized for optimal performance.
Each sliding bearing block, an integral part of the system, aligns perfectly with the frame guide rail. It rests on two oil cylinders, with the hydraulic system delivering the power for its up-down motion. The main oil cylinder boasts a rated pressure of 16Mpa, ensuring robust performance. State-of-the-art sensors meticulously track the up-down distance, displaying real-time data on an LCD screen. The hydraulic system's adjustable pressure guarantees precise hydraulic power tailored to achieve the desired rolling force.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is a testament to intricate engineering, comprising the side roller's main oil cylinder, self-aligning bearing, and additional bearings, all harmonized for smooth operation.
Bearing blocks provide unwavering support for the side roller, which coordinates flawlessly with the frame's guide rail, ensuring seamless functionality.
The movement of the side roller bearing block is masterfully driven by four strategically placed oil cylinders, embedded within the frame. Advanced sensors on the side rollers and frame offer precise measurements of movement, with results elegantly displayed on an LCD.
Achieving an exquisite cone shape is effortless with self-aligning bearings for both side and lower rollers. The precise alignment and inclination of the lower roller ensure a snug fit with the side rollers, introducing a degree of inclination relative to the horizontal for a perfect finish.
3-4, hydraulic drop end
The hydraulic drop end device is composed with precision, featuring oil cylinders, joints, bearing blocks, and more.
The hydraulic drop end system facilitates seamless product removal along the Roller shaft, ensuring efficiency and ease.
Upon completion, the hydraulic drop closure or opening process resets the oil cylinder's stroke to zero, maintaining optimal performance.A dependable hydraulic station powers this reliable system, ensuring consistent performance with every use.
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.
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.
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.
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.
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.
The speed loop artfully manages frame descent, reset operations, and speed calibrations with precision, through the adept use of the throttle valve.
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.
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.
The industrial control PLC meticulously inspects the lower position and both ends of the side roller, guaranteeing synchronization precision of an impressive ±0.15mm.
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.
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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