Behold the epitome of cutting-edge technology: a four-roller plate rolling wonder that elevates industrial excellence. At its core, the top roller serves as the linchpin, orchestrating the precision and artistry that our discerning clientele appreciates. It serves as the primary drive, executing rotational movements with unparalleled grace and poise. Witness the lower roller as it ascends and descends with elegance, steering the plate with remarkable precision while ensuring perfect alignment lengthwise through measured friction. The side rollers, through their graceful angular ascent and descent, bestow plastic deformation upon the steel plate. With an adjustable side roller, this machine masterfully produces both symmetric and asymmetrical bends with minimal flat ends, advancing beyond the limits of traditional three-roller counterparts by eliminating the need for cumbersome pre-bending setups. This remarkable capability allows for rough leveling of steel plates, making it indispensable across industries including oil, chemical production, boiler-making, ship construction, hydroelectric projects, metal frameworks, and machinery fabrication.
Machine construction:
The sophisticated architecture of this machine is comprised of the upper roller device and driving unit, lower roller device, side roller apparatus, hydraulic drop end system, lubrication unit, sturdy left and right frames, durable chassis, and more.
(body frame drawing)
top roller and driving assembly
The Top roller device comprises a top roller, hydraulic drop end, fixed bearing, hydraulic motor, and bearing, all collaborating seamlessly.
The top roller transmits torque via a hydraulic motor connection, ensuring smooth and efficient rotation. A protective steel bushing is meticulously integrated with the hydraulic drop end.
movement. This hydraulic drop end is expertly equipped with a protective steel bushing to ensure seamless operation.
lower roller and position inspection unit
Central to the lower roller device are the lower roller, oil cylinder, lower roller bearing, and a self-aligning bearing, all engineered for peak performance.
Each sliding bearing block supports the lower roller with precision, aligning seamlessly with the frame guide rail. Powered by two oil cylinders, the hydraulic system facilitates the lower roller's ascent and descent. The primary oil cylinder operates at a benchmark pressure of 16Mpa, with sensors meticulously monitoring the vertical movement, displaying precise data on an LCD. This adaptive hydraulic system ensures optimal force distribution, elevating rolling precision and accuracy to unparalleled levels.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is a masterpiece of engineering, featuring the side roller's main oil cylinder, self-aligning bearing, and integral bearings.
Bearing blocks provide unwavering support to the side roller, with each side seamlessly coordinating with the frame's guide rail for optimal functionality.
The side roller's vertical movements are driven by four strategically placed oil cylinders within the frame. Sensors, precisely positioned on the side rollers and frame, meticulously track movement, displaying it on an LCD for seamless monitoring.
To achieve a flawlessly exquisite cone shape, self-aligning bearings are utilized for both side and lower rollers. By adjusting the lower roller level and alignment to incline, fine-tuning creates a perfect fit between the lower and side rollers, introducing a precise degree of inclination relative to the horizontal plane.
3-4, hydraulic drop end
The hydraulic drop end device, featuring robust oil cylinders, joints, and bearing blocks, ensures operational efficiency.
The hydraulic drop end system effortlessly facilitates product removal along the Roller shaft, optimizing operational workflow.
Following the hydraulic drop closure or opening, the oil cylinder's stroke is ingeniously reset to zero, maintaining precision and consistency in operations.The power source is securely harnessed from a state-of-the-art hydraulic station, ensuring unwavering and consistent performance every time.
Balance Device
Ingeniously crafted to revolutionize balance, our state-of-the-art device boasts a cutting-edge, compact structure that ensures unparalleled performance. When the tipping rack elegantly slips from the bearing face of the top roller and begins its graceful tipping motion, this advanced balance apparatus steps into action. As gravity naturally tugs the top roller's end downward, this expertly designed mechanism maintains perfect equilibrium, strategically positioned on the fixed side. This precise placement, at a meticulously calculated distance from the fixed frame, is securely anchored by premium screws, guaranteeing unwavering stability and exceptional operational efficiency.
(Plate Rolling Drawing)
Hydraulic System
Our hydraulic system is a masterpiece of engineering. Meticulously assembled with a high-precision gear pump, an intricate valve group, and premium auxiliary pipelines, it ensures flawless operation.
The hydraulic valve incorporates the renowned Yuken superposition series, ingeniously ensuring that the pipeline layoutis
remarkably intuitive, dramatically reducing leakage and simplifying maintenance, culminating in exceptional efficiency.
This sophisticated architecture boasts three distinct loops: the pressure adjusting loop, synchronization loop, and speed loop, each meticulously contributing to harmonious and efficient operations.
The pressure adjusting loop skillfully modulates the system’s working pressure via the main overflow valve, achieving a robust pressure of 16Mpa, ensuring consistent performance.
The synchronization loop deftly fine-tunes the synchronized movement of the lower roller through precise flow dividers and throttle valves, allowing impeccable speed adjustments.
The speed loop artfully governs frame descent, reset operations, and speed calibrations with precision, utilizing the adept throttle valve.
Electric Control System
Our electric control system is an engineering marvel, featuring a seamlessly integrated electric cabinet, an advanced operation control table, and a versatile portable button box, all operating at 380V/50Hz. It is equipped with robust short circuit and overload protection for the main motor, employing an AC contactor for managing both positive and reverse rotations. Through the power of PLC programmable control technology, this system minimizes relay usage, enhancing stability and longevity. Strategically placed buttons and indicator lights on the control table ensure the entire rolling process is streamlined, efficiently managing every operational aspect with precision.
CNC System
The NC system is a paragon of reliability, featuring a rotational encoder and a high-reliability industrial controller, creating a steadfast and dependable control platform.
CNC Function
CThis advanced NC system provides 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 with an impressive ±0.15mm accuracy.
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 set to meet precise requirements.
With an extraordinary displacement transducer resolution of 0.10mm, the display precision achieves an impressive ±0.10mm 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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