Elevate your production processes with this cutting-edge four-roller plate rolling wonder, where the top roller plays the starring role. This essential component revolutionizes steel bending with precision and grace. It acts as the primary force, executing smooth rotational movements, while the lower roller glides up and down, skillfully guiding the plate for optimal friction alignment. The two side rollers perform an elegant dance, moving at an angle to impart the perfect plastic deformation onto the steel plate. Offering versatility with its adjustable side roller, this machine enables both symmetric and asymmetrical bending, yielding a minimal flat end. This advantage surpasses the capabilities of three-roller machines by eliminating pre-bending procedures, offering rough leveling, and becoming a vital asset in industries like petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction:
This advanced machine's core structure is composed of the upper roller device and driving unit, lower roller device, side roller assembly, hydraulic drop end system, lubrication unit, sturdy left and right frames, durable chassis, and much more.
(body frame drawing)
top roller and driving assembly
The Top roller device encompasses the top roller, an efficient hydraulic drop end, fixed bearing, hydraulic motor, and bearing.
A hydraulic motor transfers torque to the top roller, initiating the rotation. To ensure safety and integrity, a protective steel bushing accompanies the hydraulic drop end.
movement. The hydraulic drop end is equipped with a robust protective steel bushing for seamless operation.
lower roller and position inspection unit
This unit comprises the sturdy lower roller, advanced oil cylinder, lower roller bearing, and a self-aligning bearing.
Each sliding bearing block, supporting the lower roller, aligns perfectly with the frame guide rail. It's mounted on two powerful oil cylinders, with the hydraulic system delivering the up-down movement energy. The main oil cylinder maintains a rated pressure of 16Mpa, ensuring reliable performance. Sensors track the precise up-down travel, displaying the measures on an LCD, while the adjustable hydraulic pressure guarantees the right rolling force.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is meticulously crafted with a main oil cylinder, self-aligning bearing, and complementary bearings for flawless operation.
Bearing blocks provide stable support for the side roller, with each side smoothly aligned with the frame's guide rail.
The side roller bearing block's vertical movement is masterfully driven by four strategically located oil cylinders, ensuring precision through sensors that measure movement, displayed vividly on an LCD.
For an impeccable cone shape, self-aligning bearings are utilized for both side and lower rollers. With careful adjustments, maintaining level lower rollers and inclined alignment, this enables a tight fit, introducing a subtle inclination for enhanced results.
3-4, hydraulic drop end
Comprising oil cylinders, joints, bearing blocks, and more, the hydraulic drop end device is a marvel of engineering.
The hydraulic drop end system effortlessly facilitates product removal along the Roller shaft, underscoring operational simplicity.
Upon completing hydraulic drop operations, the oil cylinder's stroke is reset to an absolute zero position, ensuring reliability.The hydraulic station, a cornerstone of power supply, ensures consistent and dependable operation.
Balance device
Our state-of-the-art balance device is ingeniously crafted with a cutting-edge, compact structure, ensuring unparalleled performance. When the tipping rack gracefully slips off the bearing face of the top roller and initiates its tipping movement, this advanced balance device comes into play. As gravity naturally draws the top roller's end downwards, this expertly designed apparatus maintains perfect equilibrium by being thoughtfully positioned on the fixed side. This strategic placement, at a meticulously calculated distance from the fixed frame, is firmly anchored by high-quality screws, guaranteeing stability and exceptional operational efficiency.
(plate rolling drawing)
Hydraulic System
Our cutting-edge hydraulic system is a masterpiece, meticulously assembled from a high-precision gear pump, an intricate valve group, and premium auxiliary pipelines to ensure flawless operation.
The hydraulic valve features the acclaimed Yuken superposition series, which ingeniously ensures that the pipeline layoutis
astonishingly intuitive, significantly reducing leakage and simplifying maintenance for exceptional efficiency.
This sophisticated system architecture incorporates three distinct loops: the pressure adjusting loop, synchronization loop, and speed loop, each meticulously contributing to a harmonious and efficient operation.
The pressure adjusting loop expertly modulates the system’s working pressure utilizing the main overflow valve, achieving a robust working pressure of 16Mpa, ensuring consistent performance.
The synchronization loop deftly fine-tunes the in-sync movement of the lower roller through the precise flow divider and throttle valve, allowing for impeccable speed adjustments.
The speed loop artfully manages frame descent, reset operations, and speed calibrations with precision, through the adept use of the throttle valve.
Electric Control System
Our electric control system is a marvel of engineering, featuring a seamlessly integrated electric cabinet, an advanced operation control table, and a versatile portable button box, all functioning at 380V/50Hz. Equipped with robust short circuit and overload protection for the main motor, and utilizing an AC contactor for managing both positive and reverse rotations. Through the power of PLC programmable control technology, this system boasts minimal relay usage, enhancing stability and longevity. Strategically placed buttons and indicator lights on the control table ensure the entire rolling process is streamlined and efficiently managed, with every operational aspect scrutinized with precision.
CNC System
The NC system is a paragon of reliability, designed with a rotational encoder and a high-reliability industrial controller, creating a steadfast and dependable control system.
CNC Function
CThis advanced NC system offers 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 of an impressive ±0.15mm.
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 suit precise requirements.
With an extraordinary displacement transducer resolution of 0.10mm, the display precision reaches 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 
){kind=link}