Experience the pinnacle of innovation with our state-of-the-art four-roller plate rolling machine. Designed as a marvel in modern engineering, it features a top roller that serves as the quintessential component in our machinery. It functions as the primary powerhouse, executing precise rotational movements. Meanwhile, the lower roller elegantly shifts up and down, effortlessly guiding the steel plate to ensure optimal friction alignment along its length. The two side rollers, with refined precision, move up and down at an angle, bestowing the desired plastic deformation onto the steel plate. Thanks to the adjustable side roller, our machine excels at both symmetric and asymmetrical bending, achieving a minimal flat end. It surpasses traditional three-roller machines by eliminating the necessity for pre-bending procedures and devices, and it offers preliminary leveling of the steel plate. Its versatility makes it essential in diverse industries such as petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction:
The sophisticated core of this machine is composed of the upper roller device and driving unit, lower roller device, side roller apparatus, hydraulic drop end system, efficient lubrication unit, robust left and right frames, supportive chassis, and more.
(body frame drawing)
top roller and driving assembly
The Top roller device is a marvel of engineering, featuring the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing.
With torque transmitted seamlessly through the connected hydraulic motor, the top roller initiates its rotation. A protective steel bushing is expertly fitted to complement the hydraulic drop end.
movement. This hydraulic drop end is meticulously equipped with a high-grade protective steel bushing.
lower roller and position inspection unit
Designed with precision, the lower roller device includes the lower roller, oil cylinder, lower roller bearing, and a self-aligning bearing.
Each sliding bearing block, which supports the lower roller, is perfectly aligned with the frame guide rail and mounted on two oil cylinders. The hydraulic system powers the up-down movement of the lower roller with precision, operating under a rated pressure of 16Mpa. Advanced sensors meticulously track the up-down distance, displaying it on an intuitive LCD interface. Adjustable hydraulic system pressure ensures precise hydraulic power to meet the desired rolling force consistently.
(hydraulic drivers drawing)
side roller apparatus
Intricately crafted, the side roller device consists of the main oil cylinder of the side roller, self-aligning bearing, and auxiliary bearings for flawless operation.
The bearing blocks securely support the side roller, with each side harmoniously coordinating with the frame's guide rail.
The side roller bearing block's up-down movement is driven by four strategically placed oil cylinders within the frame. High-precision sensors, installed on the side rollers and frame, measure this movement with results prominently displayed on an LCD screen.
For an exquisite cone shape, self-aligning bearings are employed for both the side and lower rollers. With precise adjustments, the lower roller's level and alignment become inclined, allowing a snug fit between the lower and side rollers—introducing a degree of inclination relative to the horizontal for maximum efficiency.
3-4, hydraulic drop end
The hydraulic drop end device is an assemblage of oil cylinders, joints, bearing blocks, and more, reflecting meticulous attention to detail.
The hydraulic drop end system ensures seamless product removal along the Roller shaft, enhancing operational efficiency.
Upon completing the hydraulic drop closure or opening process, the oil cylinder's stroke is swiftly reset to zero, ensuring optimal performance.The power source is derived from a robust and reliable hydraulic station, guaranteeing consistency and dependability.
Balance device
Our cutting-edge balance device features a groundbreaking compact structure, engineered for peak performance whenever the tipping rack slips off the bearing face of the top roller, initiating the tipping movement. As gravity gracefully guides the top roller’s end to descend, this advanced balance mechanism ensures equilibrium by being thoughtfully positioned on the fixed side. This strategic placement creates a precise distance from the fixed frame, firmly secured by screws to guarantee stability and unmatched efficiency.
(plate rolling drawing)
Hydraulic System
Our state-of-the-art hydraulic system is intricately assembled from a high-precision gear pump, an advanced valve group, and auxiliary pipelines, delivering flawless operation.
The hydraulic valve employs the remarkable Yuken superposition series, ensuring the pipeline layoutis
extraordinarily streamlined, significantly reducing leakage risks and simplifying maintenance for exceptional efficiency.
The system architecture is composed of three distinct loops: the pressure adjusting loop, synchronization loop, and speed loop, each meticulously designed to ensure harmonious operation.
The pressure adjusting loop expertly modulates the system's working pressure through the main overflow valve, achieving a formidable working pressure of 16Mpa.
The synchronization loop fine-tunes the in-phase movement of the lower roller using the flow divider and throttle valve, allowing for precise speed adjustments.
The speed loop proficiently manages frame descent, reset operations, and speed adjustments via the throttle valve, ensuring optimal performance.
Electric Control System
The electric control system boasts an integrated electric cabinet, a sophisticated operation control table, and a portable button box, all functioning at 380V/50Hz. Equipped with comprehensive short circuit and overload protection for the main motor, it employs an AC contactor to efficiently manage positive and reverse rotations. Utilizing advanced PLC programmable control technology, the system minimizes relay usage for enhanced stability and prolonged longevity. Strategically positioned buttons and indicator lights on the control table streamline the entire rolling process, overseeing every aspect with unparalleled precision.
CNC System
The NC system is meticulously engineered with a rotational encoder and a high-reliability industrial controller, creating a consistent and dependable control system.
CNC Function
CThis sophisticated NC system offers real-time monitoring, seamless data transmission, and reliable power-off memory throughout the entire rolling process, ensuring efficiency and dependability.
The industrial control PLC executes automatic inspections of the lower position and both ends of the side roller, guaranteeing synchronization precision of ±0.15mm.
The programmable display provides comprehensive, real-time visibility of the lower roller and side roller end positions,
with parameters that can be effortlessly configured and set to meet specific requirements.
Featuring a displacement transducer with a resolution of 0.10mm, the display precision achieves an exceptional ±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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