This state-of-the-art machine seamlessly integrates advanced technology into a four-roller plate rolling system, with the top roller ingeniously designed as the pivotal component driving its exceptional performance. It serves as the primary drive, smoothly executing rotational movements. Meanwhile, the lower roller engages in a sophisticated vertical dance, elegantly guiding the plate to ensure perfect friction along its length. The two side rollers perform an orchestrated ascent and descent at calculated angles, skillfully imparting the desired plastic deformation to the steel plate. With the versatile adjustable side roller, this machine achieves both symmetric and asymmetrical bending, resulting in an impressively minimal flat end—an advantage over traditional three-roller machines by eliminating the need for pre-bending procedures and devices, while also delivering rough leveling of the steel plate. This makes it an indispensable asset across a range of industries, including petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction:
The intricate architecture of this sophisticated machine encompasses the upper roller device and driving unit, lower roller device, side roller apparatus, an innovative hydraulic drop end system, lubrication unit, left and right frames, chassis, and more.
(body frame drawing)
Top roller and driving assembly
The Top roller device is comprised of the top roller, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing.
The top roller efficiently transfers torque through its connected hydraulic motor, initiating seamless rotation. A protective steel bushing is adeptly fitted with the hydraulic drop end.
movement. The hydraulic drop end is ingeniously equipped with a protective steel bushing.
Lower roller and position inspection unit
The lower roller device features the lower roller, oil cylinder, lower roller bearing, and a precision self-aligning bearing.
Each sliding bearing block, meticulously supporting the lower roller, aligns with the frame's guide rail. It is mounted on two oil cylinders, with the hydraulic system providing precise up-down movement power for the lower roller. The main oil cylinder operates at a rated pressure of 16Mpa. Advanced sensors monitor the up-down distance, displaying it on an intuitive LCD. The hydraulic system's adjustable pressure guarantees precise hydraulic power to meet the desired rolling force.
(hydraulic drivers drawing)
Side roller apparatus
The side roller device is intricately engineered, consisting of the side roller's main oil cylinder, self-aligning bearing, and multiple other bearings.
Bearing blocks provide robust support for the side roller, with each side synchronizing flawlessly with the frame's guide rail.
The up-down movement of the side roller bearing block is driven with precision through four strategically placed oil cylinders within the frame. State-of-the-art sensors installed on the side rollers and frame meticulously measure the movement, with results clearly displayed on an LCD.
To achieve a flawlessly crafted cone shape, self-aligning bearings are expertly employed for both side and lower rollers. With the lower roller level and alignment becoming inclined, fine adjustments enable a precise fit between lower and side rollers, introducing a calculated degree of inclination relative to the horizontal.
3-4, Hydraulic drop end
The hydraulic drop end device is composed of oil cylinders, joints, bearing blocks, and more.
The hydraulic drop end system facilitates effortless and seamless product removal along the Roller shaft.
Upon completion of the hydraulic drop closure or opening, the oil cylinder's stroke is reset to zero, ensuring precision.The power source is derived from a highly reliable hydraulic station.
Balance device
Experience the cutting-edge design of our balance device, engineered with a revolutionary compact structure that ensures peak performance. When the tipping rack slips off the bearing face of the top roller, initiating its tipping movement, gravity causes the top roller’s end to gracefully descend. Our advanced balance device arises to maintain perfect equilibrium, strategically located on the fixed side. This calculated distance from the fixed frame, securely fastened by screws, guarantees unwavering stability and enhances efficiency.
(plate rolling drawing)
Hydraulic System
Discover the pinnacle of hydraulic innovation with our system, meticulously designed for seamless operation. It integrates a high-precision gear pump, a sophisticated valve group, and auxiliary pipelines, ensuring flawless performance at every step.
The hydraulic valve capitalizes on the renowned Yuken superposition series, offeringa
remarkably streamlined pipeline layout. This intelligent design minimizes leakage and simplifies maintenance, delivering unmatched operational efficiency and reliability.
Our system architecture is a symphony of three distinct loops: the pressure adjusting loop, the synchronization loop, and the speed loop, each meticulously crafted to contribute to harmonious operations.
The pressure adjusting loop modulates the system’s working pressure with finesse, employing the main overflow valve to achieve a formidable working pressure of 16Mpa.
The synchronization loop fine-tunes the in-phase movement of the lower roller with precision, utilizing the flow divider and throttle valve for exact speed adjustments.
The speed loop expertly manages frame descent, reset operations, and fine speed adjustments through the throttle valve, ensuring smooth and controlled actions.
Electric Control System
Our electric control system is a marvel of integration, featuring an electric cabinet, an advanced operation control table, and a portable button box, all operating seamlessly at 380V/50Hz. Robust short circuit and overload protection for the main motor are assured, utilizing an AC contactor for deft management of positive and reverse rotations. The system harnesses the power of PLC programmable control technology, significantly reducing relay usage to enhance stability and longevity. Strategically positioned buttons and indicator lights on the control table streamline the rolling process, overseeing every operational facet with precision and ease.
CNC System
Our NC system exemplifies reliability, crafted with a rotational encoder and a high-reliability industrial controller, providing a robust and consistent control infrastructure.
CNC Function
CThis sophisticated NC system offers remarkable features, including real-time monitoring, seamless data transmission, and dependable power-off memory throughout the rolling process.
The industrial control PLC automatically inspects the lower position and both ends of the side roller, ensuring synchronization precision with an impressive accuracy of ±0.15mm.
Our programmable display provides real-time visibility into the lower roller and side roller end positions,
allowing for effortless configuration and setting of these critical parameters.
With a displacement transducer resolution of 0.10mm, the display precision achieves an outstanding accuracy of ±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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