Introducing our cutting-edge marvel of engineering, the Advanced Four Rollers Machine for Precision Steel Sheet Bending. This revolutionary four-roller plate rolling machine showcases excellence with its top roller, the heart of precision, offering the finesse and accuracy that discerning professionals demand. It serves as the primary drive, executing rotational movements with unmatched grace. The lower roller ascends and descends with elegance, guiding the plate to perfection while ensuring meticulous friction aligns it lengthwise. The side rollers, with their dynamic angular motion, grant the desired plastic deformation to the steel plate. The adjustable side roller allows the machine to seamlessly achieve both symmetric and asymmetrical bending with minimal flat ends, transcending the capabilities of traditional three-roller machines. By eliminating cumbersome pre-bending procedures, it offers essential rough leveling, making it indispensable in industries like petroleum, chemical manufacturing, boiler production, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction:
The sophisticated core design of this machine includes the upper roller device and driving unit, lower roller device,side roller apparatus,hydraulic drop end system, lubrication unit, sturdy left and right frames, robust chassis, and more.
(body frame drawing)
top roller and driving assembly
The Top roller device is an engineering masterpiece featuring a top roller, hydraulic drop end, fixed bearing, hydraulic motor, and bearing, all harmoniously working together.
The top roller transmits torque through a connected hydraulic motor, initiating a seamless rotation. A protective steel bushing is meticulously incorporated with the hydraulic drop end,
ensuring seamless operation and long-lasting performance.
lower roller and position inspection unit
The lower roller device comprises a lower roller, oil cylinder, lower roller bearing, and a self-aligning bearing, all designed for peak performance.
Each sliding bearing block supporting the lower roller aligns flawlessly with the frame guide rail. Mounted on two oil cylinders, the hydraulic system powers the up-down movement of the lower roller. The primary oil cylinder operates at a rated pressure of 16Mpa, while sensors precisely track the up-down distance, displaying the data clearly on an LCD. This adjustable hydraulic system delivers precise power, empowering the machine with unparalleled rolling force accuracy.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is skillfully crafted with the main oil cylinder for the side roller, self-aligning bearing, and other vital bearings.
Bearing blocks offer unwavering support, with each side roller seamlessly coordinating with the frame's guide rail for optimal functionality.
The up-down movement of the side roller bearing block is driven by four strategically positioned oil cylinders within the frame. Sensors, installed on both side rollers and the frame, meticulously measure movement, which is displayed on an LCD for effortless monitoring.
To craft an exquisite cone shape, self-aligning bearings are employed for both side and lower rollers. With the lower roller level adjusted to become inclined, fine-tuning achieves a snug fit between the lower and side rollers, introducing a precise degree of inclination relative to the horizontal.
3-4, hydraulic drop end
The hydraulic drop end device includes sturdy oil cylinders, joints, bearing blocks, and more, ensuring supreme efficiency.
The hydraulic drop end system facilitates effortless product removal along the Roller shaft, streamlining operations with efficiency and precision.
After completing hydraulic drop closure or opening, the oil cylinder's stroke is ingeniously reset to zero, maintaining impeccable precision and accuracy.Our impeccable power source is assuredly delivered by a state-of-the-art hydraulic station, promising consistent and reliable performance every time.
Balanced Device
Ingeniously crafted to redefine balance, our avant-garde balance device features a sleek, compact structure that promises unmatched performance. When the tipping rack smoothly detaches from the bearing face of the top roller, initiating its seamless tipping action, this advanced balance mechanism is activated. As gravity gently pulls the top roller's end down, this expertly engineered apparatus maintains perfect equilibrium, strategically positioned on the stationary side. This precise placement, at a meticulously calculated distance from the fixed frame, is securely held by premium screws, ensuring unwavering stability and exceptional operational efficiency.
(Plate Rolling Drawing)
Hydraulic System
Our sophisticated hydraulic system is nothing short of a masterpiece. Placed together with precision, it includes a high-precision gear pump, a detailed valve group, and premium auxiliary pipelines, guaranteeing flawless operation.
The hydraulic valve integrates the esteemed Yuken superposition series, ingeniously ensuring that the pipeline layoutis
extraordinarily intuitive, significantly minimizing leakage while simplifying maintenance, ultimately culminating in exceptional efficiency.
This sophisticated design features three distinct loops: the pressure adjusting loop, synchronization loop, and speed loop, each meticulously contributing to seamless and efficient operations.
The pressure adjusting loop adeptly modulates the system's working pressure through the main overflow valve, achieving a sturdy pressure of 16Mpa, ensuring consistent, high-performance operation.
The synchronization loop skillfully fine-tunes the synchronized movement of the lower roller using precise flow dividers and throttle valves, facilitating impeccable speed adjustments.
The speed loop gracefully manages frame descent, reset functions, 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, a state-of-the-art operation control table, and a versatile portable button box, all functioning at 380V/50Hz. It is equipped with robust short circuit and overload protection for the main motor, employing an AC contactor to govern both positive and reverse rotations. Harnessing 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 streamline the entire rolling process, efficiently managing every aspect of operation with precision.
CNC System
The NC system is a paradigm of reliability, featuring a rotational encoder and a high-reliability industrial controller, creating a steadfast and dependable control platform.
CNC Function
CThis cutting-edge NC system offers unmatched real-time monitoring, effortless data transmission, and reliable power-off memory throughout the entire rolling process, ensuring both 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 provides comprehensive real-time visibility of the lower roller and side roller end positions,
and these parameters can be effortlessly configured and set to meet your 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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