Introducing the pinnacle of innovation: our state-of-the-art machine, a four-roller plate rolling marvel. With its top roller as the central component, this machine promises unmatched precision and efficiency. It serves as the primary drive, orchestrating rotational movements with finesse. The lower roller ascends and descends, guiding the plate with elegance and ensuring perfect friction alignment lengthwise. Meanwhile, the two side rollers gracefully ascend and descend at precise angles, crafting the desired plastic deformation on the steel plate. This machine's advanced adjustable side roller enables both symmetric and asymmetrical bending, drastically minimizing flat ends. It surpasses traditional three-roller machines by eliminating cumbersome pre-bending procedures and devices while offering rough leveling of the steel plate. Its indispensability spans across industries such as petroleum, chemical processing, boiler manufacturing, shipbuilding, hydroelectric power, metal structures, and machinery.
Machine construction:
The core structure of this distinguished machine 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 intricately designed components.
(body frame drawing)
top roller and driving assembly
The Top roller device is a harmonious ensemble comprising the top roller, hydraulic drop end, fixed bearing, hydraulic motor, and bearing unit.
The top roller deftly transfers torque via a connected hydraulic motor to initiate smooth rotation. The hydraulic drop end is secured with a protective steel bushing, ensuring longevity and durability.
movement. The hydraulic drop end is fortified with a protective steel bushing to guarantee seamless operation.
lower roller and position inspection unit
The comprehensive lower roller device features the lower roller, oil cylinder, lower roller bearing, and a precision-engineered self-aligning bearing.
Every sliding bearing block supporting the lower roller aligns meticulously with the frame guide rail. Mounted on dual oil cylinders, the hydraulic system endows the lower roller with its up-down movement prowess. Operating at a rated pressure of 16Mpa, the main oil cylinder ensures robust performance. Sophisticated sensors track the up-down distance with precision, displaying data on an intuitive LCD. The hydraulic system's adjustable pressure guarantees the exact hydraulic power required to meet the desired rolling force.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is a masterpiece of engineering, comprising the side roller's main oil cylinder, innovative self-aligning bearing, and other precision bearings.
Bearing blocks elegantly support the side roller, with each side working harmoniously with the frame's guide rail for seamless operation.
The side roller bearing block's graceful up-down movement is driven by four strategically positioned oil cylinders within the frame. Sensors on the side rollers and frame meticulously measure movement, with results artfully displayed on an LCD screen.
To sculpt an impeccable cone shape, our self-aligning bearings are employed for both side and lower rollers. Precision leveling of the lower roller and orientation adjustments achieve a perfect fit between the lower and side rollers, introducing an inclined angle relative to the horizontal plane.
3-4, hydraulic drop end
The hydraulic drop end device is composed of robust oil cylinders, precision-engineered joints, stable bearing blocks, and more.
The hydraulic drop end system facilitates effortless product removal along the Roller shaft, ensuring seamless transitions post-processing.
Once the hydraulic drop end is closed or opened, the oil cylinder's stroke returns seamlessly to zero, embodying efficiency.A reliable hydraulic station powers this sophisticated mechanism, ensuring consistent and dependable performance.
Balance device
Introducing our state-of-the-art balance device, engineered with a groundbreaking compact structure to ensure unparalleled performance. When the tipping rack slips off the bearing face of the top roller and initiates tipping movement, this advanced balance device springs into action. As gravity draws the end of the top roller downward, the device, strategically anchored on the fixed side, maintains perfect equilibrium. This meticulous placement at a calculated distance from the fixed frame is securely fastened by screws, guaranteeing both stability and optimal efficiency.
(plate rolling drawing)
Hydraulic System
Delve into our cutting-edge hydraulic system, meticulously crafted with a high-precision gear pump, a sophisticated valve group, and expertly designed auxiliary pipelines all working in flawless harmony for seamless operation.
Our hydraulic valve utilizes the renowned Yuken superposition series,ensuring
a remarkably straightforward pipeline layout. This design significantly minimizes leakage and simplifies maintenance, offering unmatched efficiency.
The architecture of this system is composed of three distinct loops: a pressure-adjusting loop, a synchronization loop, and a speed loop, each contributing to an impeccable, harmonious operation.
The pressure-adjusting loop expertly modulates the system’s working pressure through the main overflow valve, achieving a robust working pressure of 16Mpa, ensuring ideal performance.
Our synchronization loop precisely fine-tunes the in-phase movement of the lower roller utilizing the flow divider and throttle valve, allowing for precise speed adjustments.
The speed loop dynamically controls the frame descent, reset operations, and speed adjustments through the throttle valve, ensuring every operation is executed with expertise.
Electric Control System
Experience the sophistication of our electric control system, featuring an integrated electric cabinet, a sophisticated operation control table, and a portable button box, operating efficiently at 380V/50Hz. It includes short circuit and overload protection for the main motor, utilizing an AC contactor for expertly managing both positive and reverse rotations. With PLC programmable control technology, it minimizes relay usage for enhanced stability and longevity. Strategically placed buttons and indicator lights on the control table streamline the entire rolling process, overseeing every operational aspect with impeccable precision.
CNC System
Our NC system stands out with its rotational encoder and high-reliability industrial controller, forming a consistent and reliable control framework.
CNC Function
CThis advanced NC system is designed for real-time monitoring, seamless data transmission, and dependable power-off memory throughout the entire rolling process.
The industrial control PLC diligently inspects the lower position and both ends of the side roller, ensuring a synchronization precision of ±0.15mm, enhancing performance excellence.
Our programmable display provides real-time visibility of the lower roller and side roller end positions,
and these parameters can be effortlessly configured and set, offering user-friendly operation.
With an impressive displacement transducer resolution of 0.10mm, the display precision achieves a remarkable ±0.10mm, setting a new standard in 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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