This exceptional piece of equipment is a state-of-the-art four-roller plate rolling machine, distinguished by its top roller feature. is the primary driver, executing rotational movements with precision. The lower roller is engineered for vertical motion, facilitating optimal friction along the plate's length. Meanwhile, the two side rollers perform an angular up-down movement relative to a straight line, skillfully inducing the necessary plastic deformation in the steel plate. By adjusting the side rollers, both symmetric and asymmetrical bending are possible, theoretically reducing the flat end to a minimal length compared to three-roller machines. This innovation not only eliminates the need for pre-bending procedures and devices but also allows for preliminary leveling of steel plates. Its extensive applications span across industries such as petroleum, chemical, boiler, shipbuilding, hydroelectricity, metal structure, and machinery.
Machine construction:
The robust architecture of the machine features an upper roller assembly, a dynamic driving device, a lower roller arrangement, a side roller mechanism, a hydraulic drop end, a comprehensive lubrication system, and sturdy left/right frame and chassis components.
(body frame drawing)
top roller and driving device
Top roller assembly comprises the top roller itself, a hydraulic drop end, fixed bearing, hydraulic motor, and bearing, all working in concert.
The top roller transmits torque efficiently via a connecting hydraulic motor, facilitating smooth rotational motion. The hydraulic drop end is meticulously equipped with a protective steel bushing.
rotation movement. Hydraulic drop end is installed with protection steel bushing.
lower roller and position inspection device
The lower roller setup includes the lower roller, oil cylinder, and both lower roller and self-aligning bearings, ensuring seamless operation.
Sliding bearing blocks on either side support the lower roller, interfacing smoothly with the frame guide rail. The blocks are secured atop two oil cylinders, which the hydraulic system powers for the roller's vertical motion. With a main oil cylinder pressure rating of 16Mpa, the system allows precise adjustment of hydraulic power to meet specific rolling requirements. Real-time movement data is monitored by sensors, with outcomes displayed on an LCD for enhanced accuracy.
(hydraulic drivers drawing)
side roller device
The sophisticated side roller assembly includes a main oil cylinder, self-aligning bearings, and bearing components.
Bearing blocks provide support for the side roller, aligning flawlessly with the frame guide rail on both sides.
The side roller's bearing blocks are driven through vertical motion by four strategically placed oil cylinders within the frame. Sensor technology ensures precise measurement of roller movement, with data clearly presented on an LCD panel.
In crafting cone shapes, self-aligning bearings for both side and lower rollers come into play. When the lower roller maintains a level or adopts a sloped position, it and the side rollers seamlessly align through meticulous adjustments, allowing a degree of inclination between the horizontal line and the rollers.
3-4,hydraulic drop end
The hydraulic drop end assembly consists of an oil cylinder, joint, bearing block, and bearing, among other components for flawless operation.
The hydraulic drop end system facilitates the effortless extraction of products along the roller shaft, optimizing operational efficiency.
Upon completing the opening or closing cycle, the oil cylinder stroke resets to zero, powered by a sophisticated hydraulic station. The power comes from hydraulic station.
Balance device
The balance device is ingeniously crafted with a compact design, ensuring seamless operation when the tipping rack slips off the top roller's bearing face. As the top roller gracefully tips, the balance device, strategically mounted on the fixed side, ensures the roller remains level. Positioned outside the fixed side frame, it spans the gap to the balance device and is securely fastened to the frame with robust screws for optimum stability.
(plate rolling drawing)
Hydraulic System
Our advanced hydraulic system is a harmonious assembly of a gear pump, a versatile valve group, and auxiliary pipelines, engineered for peak performance.
The hydraulic valve integrates the renowned Yuken superposition hydraulic valve series, ensuring unparalleled reliability. Layout
is intuitively designed for simplicity, minimal leakage, and hassle-free maintenance.
The system elegantly comprises three core loops: pressure adjustment, synchronization, and speed control, each tailored for precision and efficiency.
The pressure adjustment loop deftly modulates the system's working pressure via the main overflow valve, maintaining a consistent 16Mpa for optimal operations.
The synchronization loop, with its sophisticated flow divider and throttle valves, ensures the precise in-phase motion of the lower roller, allowing meticulous speed adjustments.
The speed loop adeptly manages the descent and reset of frames, finely tuning speed with precision throttle valves.
Electric Control System
Our cutting-edge electric control system encompasses an electric cabinet, an operation control table, and a portable button box, powered by a robust 380V/50Hz supply. It features short circuit and overload protection for the main motor, with AC contactors handling rotational directions. Utilizing a PLC programmable control, it promises a stable, long-lasting operation with minimal relays. A comprehensive control table houses all buttons and indicator lights, orchestrating the entire rolling process with ease and precision.
CNC System
The system employs a rotation encoder paired with a high-reliability industry controller, forming a stable and high-performance control system.
CNC Functionality
CThe NC system provides real-time monitoring, seamless data passage, and power-off memory during the rolling process, ensuring uninterrupted precision.
Our industry control PLC automatically inspects the lower position and both ends of the side roller, maintaining synchronization precision within ±0.15mm.
The programmable display vividly presents real-time positions of the lower roller and both ends of the side roller, with settings that can be adjusted as needed.
position and it can be set.
The displacement transducer boasts a resolution of 0.10mm, offering a display precision of ±0.10mm for uncompromised accuracy.
Automatic Self-Judge Functionality
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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