Introducing a revolutionary marvel in machinery, the state-of-the-art four-roller plate rolling machine, where the top roller reigns as the pivotal component. It stands as the driving force, efficiently executing rotational movements. Meanwhile, the lower roller gracefully ascends and descends to guide the plate with precision, ensuring seamless friction along its length. The two side rollers perform an elegant dance, moving with precision at an angle to bestow the steel plate with the desired plastic deformation. With the innovative adjustable side roller, this machine masters both symmetric and asymmetrical bending, resulting in minimal flat ends. It surpasses its three-roller counterparts by eliminating the need for pre-bending equipment and procedures, while also offering rough leveling of steel plates. This makes it a crucial asset in industries such as petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction:
This sophisticated machine's core structure comprises the upper roller device and driving unit, lower roller devicee, side roller system, hydraulic drop end mechanism, lubrication unit, left and right frames, chassis, and additional components.
(body frame drawing)
top roller and driving assembly
The Top roller device is a masterpiece, consisting of the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing.
Torque is transmitted by the top roller through a connected hydraulic motor to initiate rotation. A protective steel bushing is adeptly fitted with the hydraulic drop end.
movement. The hydraulic drop end is thoughtfully equipped with a protective steel bushing for optimal handling.
lower roller and position inspection unit
The lower roller device showcases the lower roller, oil cylinder, lower roller bearing, and a self-aligning bearing.
Every sliding bearing block supporting the lower roller aligns impeccably with the frame guide rail. These blocks rest on two oil cylinders, with a hydraulic system offering precise up-down movement power for the lower roller. Operating at a rated pressure of 16Mpa, the main oil cylinder ensures smooth functionality. Advanced sensors meticulously track the up-down distance and present it on an LCD. The hydraulic system's adjustable pressure delivers precise hydraulic power to align with desired rolling force.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is an intricate assembly comprising the side roller's main oil cylinder, self-aligning bearing, and additional bearings.
Strategically placed bearing blocks support the side roller, each harmonizing seamlessly with the frame's guide rail.
The side roller bearing block is activated through four expertly positioned oil cylinders within the frame, facilitating its up-down movement. Advanced sensors on the side rollers and frame accurately measure movement, with the results displayed on an LCD.
To achieve an impeccable cone shape, self-aligning bearings are expertly employed for both side and lower rollers. With the lower roller level and alignment transitioning to an incline, fine adjustments foster a perfect snug fit between lower and side rollers, introducing a relative degree of inclination.
3-4, hydraulic drop end
The hydraulic drop end device is an assembly of precision components including oil cylinders, joints, bearing blocks, and more.
The hydraulic drop end mechanism ensures effortless and efficient product removal along the Roller shaft.
Upon completion of the hydraulic drop operation, whether closing or opening, the oil cylinder stroke is meticulously reset to zero.This is powered by a dependable hydraulic station, ensuring reliable performance.
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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