Experience innovation with our cutting-edge four-roller plate rolling machine, a marvel in precision engineering where the top roller takes center stage as the pivotal component. It operates as the primary drive, executing smooth rotational movements while the lower roller gracefully ascends and descends to guide the plate with elegance. This ensures impeccable friction alignment lengthwise. The two side rollers, with their sophisticated design, move up and down at an angle to impart the precise plastic deformation required for the steel plate. The adjustable side roller allows for both symmetric and asymmetrical bending, minimizing flat ends. This surpasses three-roller machines, eliminating the need for pre-bending devices while offering rough leveling of the steel plate. It is indispensable in petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery industries.
Machine construction:
The sophisticated architecture of this machine includes the upper roller device, driving unit, lower roller devicee, side roller apparatus, 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 features the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing.
The top roller transmits torque via an advanced hydraulic motor, initiating seamless rotation. It is safeguarded by a durable steel bushing with a hydraulic drop end.
movement. The hydraulic drop end is enhanced with a protective steel bushing.
lower roller and position inspection unit
The lower roller unit comprises the lower roller, oil cylinder, lower roller bearing, and self-aligning bearing.
Sliding bearing blocks support the lower roller in harmony with the frame guide rail. Mounted on two high-precision oil cylinders, the hydraulic system powers its up-down movement. The main oil cylinder delivers a rated pressure of 16Mpa. State-of-the-art sensors monitor the movement distance, displaying it on an LCD. The adjustable hydraulic system ensures precise power delivery for the desired rolling force.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is meticulously crafted with the side roller's main oil cylinder, self-aligning bearing, and a suite of other bearings.
Bearing blocks efficiently support the side roller, ensuring flawless coordination with the frame's guide rail.
The side roller bearing block's movement is driven by four strategically positioned oil cylinders in the frame. Accurate sensors on the side rollers and frame measure movement, with results displayed on an LCD.
To craft a perfect cone shape, self-aligning bearings are utilized for both side and lower rollers. Fine adjustments with the lower roller aligned and inclined introduce a snug fit, adjusting the inclination relative to the horizontal.
3-4, hydraulic drop end
The hydraulic drop end mechanism features oil cylinders, joints, bearing blocks, and more.
The hydraulic drop end system ensures smooth and efficient product removal along the Roller shaft.
Upon completion of the hydraulic drop closure or opening, the oil cylinder's stroke is reset to zero, ensuring reliability.The power source is a dependable hydraulic station.
Balance device
Our ingenious balance device showcases a state-of-the-art, compact structure, meticulously crafted to deliver unmatched performance. As the tipping rack gracefully glides off the bearing face of the top roller, initiating its elegant tipping motion, this cutting-edge balance device springs into action. As gravity subtly draws the top roller's end downward, this impeccably designed system maintains flawless equilibrium, thoughtfully positioned on the fixed side. Its strategic placement, at an expertly calculated distance from the fixed frame, is securely anchored by top-tier screws, ensuring unwavering stability and outstanding operational efficiency.
(plate rolling drawing)
Hydraulic System
Our hydraulic system embodies cutting-edge innovation, meticulously crafted with a high-precision gear pump, a sophisticated valve group, and superior auxiliary pipelines, ensuring impeccable operation.
The hydraulic valve employs the renowned Yuken superposition series, ingeniously optimizing the pipeline layoutand
achieving remarkable intuitiveness, drastically reducing leakage and simplifying maintenance for peak efficiency.
This sophisticated architectural marvel features three distinct loops: the pressure adjusting loop, synchronization loop, and speed loop, each masterfully contributing to a harmonious and efficient operation.
The pressure adjusting loop skillfully modulates the system’s working pressure through the main overflow valve, achieving a formidable working pressure of 16Mpa, ensuring consistently robust performance.
The synchronization loop deftly orchestrates the in-sync movement of the lower roller using a precise flow divider and throttle valve, enabling flawless speed adjustments.
The speed loop adeptly manages frame descent, reset operations, and speed calibrations with unparalleled precision, utilizing the adept throttle valve.
Electric Control System
Our electric control system is an engineering marvel, featuring an elegantly integrated electric cabinet, a sophisticated operation control table, and a versatile portable button box, all operating at 380V/50Hz. Equipped with sturdy short circuit and overload protection for the main motor, and leveraging an AC contactor for seamless management of both positive and reverse rotations. Harnessing 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 seamlessly and efficiently managed, with every operational detail scrutinized with precision.
CNC System
The NC system stands as a pinnacle of reliability, meticulously designed with a rotational encoder and a highly dependable industrial controller, crafting a robust and steadfast control system.
CNC Function
CThis advanced NC system guarantees unparalleled real-time monitoring, effortless data transmission, and reliable power-off memory throughout the entire rolling process, ensuring supreme efficiency and reliability.
The industrial control PLC meticulously inspects the lower position and both ends of the side roller, ensuring synchronization precision of a remarkable ±0.15mm.
The state-of-the-art programmable display offers comprehensive real-time visibility of the lower roller and side roller end positions,
and these parameters can be effortlessly configured and tailored to meet precise requirements.
With an extraordinary displacement transducer resolution of 0.10mm, the display precision achieves 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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