Introducing a marvel of contemporary engineering: the state-of-the-art four-roller plate rolling machine. This sophisticated apparatus, with a top roller as its pivotal element, redefines precision and efficiency in plate rolling. It serves as the prime driving force, orchestrating rotational movements, while the lower roller gracefully ascends and descends to expertly guide the plate. This ensures optimal friction alignment along the length. Simultaneously, the side rollers perform an elegant up-and-down angle movement, imparting the desired plastic deformation to the steel. The innovative adjustable side roller empowers the machine to achieve both symmetric and asymmetrical bending, minimizing the flat end. This feature surpasses three-roller machines by eliminating the necessity for additional pre-bending procedures and equipment, while providing rough leveling of the steel plate. It is indispensable across diverse industries, including petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Construction of the Machine:
The sophisticated core structure of this machine comprises the upper roller device with driving unit, lower roller devicee, side roller apparatus, hydraulic drop end system, lubrication unit, left and right frames, a robust chassis, and more.
(body frame drawing)
Top Roller and Driving Assembly
The Top Roller Device is an intricate ensemble of the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing.
Through the connected hydraulic motor, the top roller masterfully transmits torque, sparking movement. The hydraulic drop end is safeguarded by a steel bushing.
The hydraulic drop end is equipped with a protective steel bushing to ensure seamless movement.
Lower Roller and Position Inspection Unit
The lower roller device is a precise composition of the lower roller, oil cylinder, bearing, and self-aligning bearing.
Sliding bearing blocks, which support the lower roller, align meticulously with the frame guide rail. These blocks rest on dual oil cylinders, empowering the lower roller's up-down motion through hydraulic prowess. Operating at a rated pressure of 16Mpa, sensors meticulously track distances and present them on an LCD. The adjustable hydraulic system pressure ensures precise power delivery to meet the desired rolling force.
(hydraulic drivers drawing)
Side Roller Apparatus
The intricately designed side roller device includes the main oil cylinder, self-aligning bearing, and additional bearings.
Bearing blocks, supporting the side roller, harmonize flawlessly with the frame's guide rail.
The strategic placement of four oil cylinders within the frame drives the side roller bearing block's up-down movement. Sensors on the side rollers and frame capture precise measurements, displaying results on an LCD.
Self-aligning bearings are deployed to achieve an exquisite cone shape for both side and lower rollers. The inclination adjustment between the aligned lower roller and the side roller allows for seamless snug fitting, introducing an elegant tilt relative to the horizontal.
3-4, Hydraulic Drop End
Comprising oil cylinders, joints, bearing blocks, and more, the hydraulic drop end device is essential to its operation.
The hydraulic drop end system ensures the effortless removal of products along the roller shaft, enhancing operational efficiency.
Upon completing hydraulic drop closure or opening, the oil cylinder's stroke resets seamlessly to zero.A reliable hydraulic station serves as the power source, ensuring consistent performance.
Balance Device
The balance device is a marvel of engineering, boasting an innovative compact structure that guarantees exceptional performance. It operates flawlessly when the tipping rack disengages from the bearing face of the top roller, initiating smooth tipping movement. As gravity gently guides the top roller’s end downward, this highly sophisticated balance device expertly maintains equilibrium. It's strategically positioned on the fixed side, creating a precise and calculated distance from the fixed frame. Fastened securely with screws, this ensures stability and efficiency are at their peak, making it an indispensable component in the system.
(plate rolling drawing)
Hydraulic System
Our hydraulic system is a pinnacle of precision, meticulously crafted from a high-precision gear pump, a sophisticated valve group, and auxiliary pipelines, ensuring seamless and smooth operation.
The hydraulic valve expertly employs the esteemed Yuken superposition series,ensuring the pipeline layout
is remarkably straightforward. This design minimizes leakage risks and simplifies maintenance, delivering unparalleled operational efficiency.
The system architecture is a masterpiece of engineering, comprising three distinct and well-coordinated loops: the pressure adjusting loop, synchronization loop, and speed loop, each contributing to harmonious and seamless operation.
The pressure adjusting loop masterfully modulates the system’s working pressure via the main overflow valve, reaching an impressive working pressure of 16Mpa, thus ensuring robust and reliable performance.
The synchronization loop skillfully fine-tunes the in-phase movement of the lower roller using the flow divider and throttle valve, allowing for precise speed adjustments with ease.
The speed loop expertly manages the descent of the frame, reset operations, and smooth speed adjustments using the throttle valve, enhancing overall control.
Electric Control System
The electric control system is a marvel of sophistication, featuring an integrated electric cabinet, an advanced operation control table, and a portable button box, all operating at 380V/50Hz. Equipped with robust short circuit and overload protection for the main motor, it uses an AC contactor to manage positive and reverse rotations seamlessly. Utilizing cutting-edge PLC programmable control technology, the system boasts minimal relay usage, enhancing both stability and longevity. Buttons and indicator lights are strategically placed on the control table to streamline the entire rolling process, overseeing every operational aspect with unmatched precision and ease.
CNC System
The NC system is a paragon of reliability, designed with a rotational encoder and a high-reliability industrial controller. It establishes a consistent and unfaltering control system that is second to none.
CNC Function
CThis advanced NC system offers real-time monitoring, seamless data transmission, and dependable power-off memory throughout the rolling process, ensuring that operations remain uninterrupted and precise.
The industrial control PLC automatically inspects the lower position and both ends of the side roller, ensuring an impressive synchronization precision of ±0.15mm, making it an invaluable asset.
The programmable display provides real-time visibility of the lower roller and side roller end positions,
and these essential parameters can be easily configured and set, offering unparalleled customization.
With a displacement transducer resolution of 0.10mm, the display precision reaches an exceptional ±0.10mm, ensuring unmatched 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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