Welcome to the pinnacle of innovation with our cutting-edge Automatic Four Rollers Roll Machine for Professional Steel Forming Needs. This state-of-the-art masterpiece is a four-roller plate rolling marvel, where the top roller plays the pivotal role as the key component in transforming raw potential into unparalleled performance. It serves as the primary drive, with the elegance of rotational movements, while the lower roller gracefully maneuvers up and down, guiding the plate with finesse to ensure that friction aligns lengthwise. The two side rollers perform a delicate ballet, moving up and down at an angle to bestow the desired plastic deformation upon the steel plate. This machine's adjustable side roller allows for both symmetric and asymmetrical bending, crafting a minimal flat end that surpasses the capabilities of three-roller machines by eliminating the need for pre-bending procedures and devices, and offering rough leveling of the steel plate. Its indispensability spans across various industries, including petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction:
At the heart of this sophisticated marvel lies the core structure, intricately designed to include the upper roller device and driving unit, a robust lower roller devicee, a precise side roller apparatus, an efficient hydraulic drop end system, a comprehensive lubrication unit, sturdy left and right frames, a supportive chassis, and more.
(body frame drawing)
top roller and driving assembly
The Top roller device is a sophisticated assembly that comprises the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing.
The top roller seamlessly transfers torque through a connected hydraulic motor, gracefully initiating rotation. A protective steel bushing is elegantly fitted with the hydraulic drop end.
movement. The hydraulic drop end is thoughtfully equipped with a protective steel bushing.
lower roller and position inspection unit
The lower roller device is a masterpiece of engineering, consisting of the lower roller, oil cylinder, lower roller bearing, and a self-aligning bearing.
Each sliding bearing block, a testament to precision, supports the lower roller and aligns harmoniously with the frame guide rail. It is mounted on two oil cylinders, empowered by the hydraulic system to provide majestic up-down movement for the lower roller. The main oil cylinder operates at a distinguished rated pressure of 16Mpa. Sensors, the epitome of accuracy, track the up-down distance, displaying it on a sophisticated LCD. The hydraulic system's adjustable pressure ensures precise hydraulic power to meet the desired rolling force.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is a symphony of engineering intricacy, composed of the side roller's main oil cylinder, self-aligning bearing, and other essential bearings.
Bearing blocks support the side roller with elegance, each side harmoniously coordinating with the frame's guide rail.
The side roller bearing block's up-down movement is powered by four strategically positioned oil cylinders within the frame. Sensors, the sentinels of precision, measure the movement, with results displayed on a state-of-the-art LCD.
To achieve the exquisite cone shape, self-aligning bearings are employed for both side and lower rollers. The lower roller level and alignment become inclined, enabling fine adjustments that ensure a snug fit between lower and side rollers, introducing a degree of inclination relative to the horizontal.
3-4, hydraulic drop end
The hydraulic drop end device is a robust assembly comprising oil cylinders, joints, bearing blocks, and more.
The hydraulic drop end system facilitates the effortless removal of products along the Roller shaft, ensuring seamless operations.
Upon the completion of hydraulic drop closure or opening, the oil cylinder's stroke is expertly reset to zero.The power source of this system is a reliable hydraulic station, a cornerstone of power and efficiency.
Balance device
The balance device is ingeniously crafted with a state-of-the-art compact structure that ensures supreme performance when the tipping rack disengages from the bearing face of the top roller and initiates its tipping motion. As gravity gracefully guides the top roller's end downward, this cutting-edge balance device, strategically positioned on the fixed side, maintains flawless equilibrium. This meticulous placement, calculated at just the right distance from the fixed frame and securely fastened by screws, guarantees both stability and peak efficiency.
(plate rolling drawing)
Hydraulic System
Our advanced hydraulic system is a masterpiece of precision, meticulously designed using a high-precision gear pump, a sophisticated valve group, and auxiliary pipelines that enable seamless and flawless operation.
The hydraulic valve incorporates the Yuken superposition series, which ensures that the pipeline layoutis
exquisitely straightforward, expertly minimizing leakage and streamlining maintenance for exceptional efficiency.
The system architecture is an orchestrated symphony, featuring three distinctive loops: the pressure adjusting loop, synchronization loop, and speed loop, each contributing to a harmonious and efficient operation.
The pressure adjusting loop meticulously modulates the system’s working pressure through the main overflow valve, achieving a commanding working pressure of 16Mpa.
The synchronization loop fine-tunes the synchronous movement of the lower roller via the flow divider and throttle valve, allowing for precise and exact speed adjustments.
The speed loop masterfully controls the frame descent, reset operations, and speed adjustments with finesse through the throttle valve.
Electric Control System
The electric control system is a powerhouse of technology, featuring an integrated electric cabinet, a sophisticated operation control table, and a portable button box, all operating seamlessly at 380V/50Hz. It provides top-tier protection with short circuit and overload safeguards for the main motor, utilizing an AC contactor to manage positive and reverse rotations effortlessly. Leveraging PLC programmable control technology, the system boasts minimal relay usage, enhancing stability and longevity. Strategically arranged buttons and indicator lights on the control table streamline every aspect of the rolling process with unparalleled precision.
CNC System
The NC system is expertly designed with a rotational encoder and highly reliable industrial controller, establishing a consistent and trustworthy control system.
CNC Function
CThis sophisticated NC system provides real-time monitoring, seamless data communication, and dependable power-off memory throughout the rolling process.
The industrial control PLC automatically inspects and regulates the lower position and both ends of the side roller, ensuring a synchronization precision of ±0.15mm.
The programmable display offers real-time visibility of the lower roller and side roller end positions,
and these parameters are easily configurable and adjustable to meet specific requirements.
With a displacement transducer resolution of 0.10mm, the display precision proudly 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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