Presenting the state-of-the-art four-roller plate rolling machine, designed to meet your industrial needs with precision. The top roller is the driving force of the machine, ensuring seamless operation. key component that drives the main action. The lower roller executes a sophisticated up-and-down motion, facilitating friction along the length of the plate. Two side rollers, strategically angled, engage in an up-and-down movement, transforming the steel plate with the required plastic deformation. This versatility allows for both symmetric and asymmetric bending, minimizing the need for pre-bending procedures and devices. As a result, the flat end is theoretically shorter compared to three-roller machines. This advanced engineering not only conserves time but also offers rough leveling capabilities. It's a machine extensively utilized across diverse industries such as petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectric power, metal structuring, and machinery manufacturing.
Machine construction marvels:
The machine's core structure boasts an upper roller device, a robust driving device, and a lower rollercomponent,complemented by a side roller device, a hydraulic end-drop system, a lubrication unit, and supportive left and right frames, all anchored to a sturdy chassis.
(Refer to the body frame drawing for intricate details.)
Top roller and driving dynamics:
The top roller assembly integrates a hydraulic drop end, fixed bearings, a hydraulic motor, and a durable bearing.
It efficiently transmits torque through a connected hydraulic motor, ensuring the top roller's
smooth rotational movement. The hydraulic drop end is fortified with a protective steel bushing for enhanced durability.
Lower roller and precision position inspection:
This assembly includes a lower roller, oil cylinder, and self-aligning bearings.
The sliding bearing block flanks the lower roller, interacting harmoniously with the frame guide rail. Positioned atop dual oil cylinders, the hydraulic system empowers the lower roller's up-and-down motion. With a main oil cylinder rated at 16Mpa, the movement is precisely monitored by a sensor, with readings displayed on an LCD. The hydraulic system's adjustable pressure enables easy customization to achieve the desired rolling force.
(Explore the hydraulic drivers drawing for a comprehensive understanding.)
Side roller device innovation:
Comprising a main oil cylinder, self-aligning bearings, and supporting bearings, the side roller device is engineered for excellence.
Bearing blocks not only support the side rollers but also coordinate with the frame guide rail for enhanced stability.
Through four strategically installed oil cylinders within two frames, the side rollers execute precise up-and-down movements, with distances verified by sensors and displayed on an LCD for real-time tracking.
For cone shape rolling, self-aligning bearings for side and lower rollers ensure precision, even as the horizontal line transitions into a slope. Through meticulous adjustments, lower and side rollers achieve a perfect fit with a controlled inclination.
3-4. Hydraulic drop end dynamics:
The hydraulic drop end assembly, comprised of an oil cylinder, joint, bearing block, and oil cylinder bearing, offers
an intuitive solution for efficiently removing products along the roller shaft. Once the hydraulic drop concludes its motion, the oil cylinder stroke resets to zero, ensuring precision.
The hydraulic station serves as the powerhouse, providing the required energy for seamless operation. Examine the balance device for further insights.
Balance device excellence:
The balance device showcases a meticulously crafted compact structure. During the tipping rack's descent from the top roller bearing, gravity causes the top roller to drop. To ensure it remains level, our balance device is strategically mounted on the fixed side, slightly distanced from the fixed frame, and securely fastened with screws.
(plate rolling drawing)
Hydraulic system
The Hydraulic system integrates a robust gear pump, a sophisticated valve group, and supportive pipelines, ensuring seamless operation.
Our hydraulic valve features the esteemed Yuken superposition series, enhancing the pipeline layout for
simplicity, minimal leakage, and effortless maintenance.
The system is ingeniously designed with three distinct loops: pressure adjustment, synchronization, and speed control.
The pressure adjustment loop fine-tunes the working pressure via the main overflow valve, maintaining an optimal 16Mpa.
Our synchronization loop expertly maneuvers the lower roller's ascent and descent in unison through the flow divider valve, allowing for precise speed adjustments via the throttle valve.
The speed control loop governs the drop and reset of frames, with precise speed modulation achieved through a throttle valve.
Electric control system
The electric control system comprises a well-organized electric cabinet, an intuitive operation control table, and a portable button box, powered at 380V/50Hz. It boasts short circuit protection and overloading safeguards for the main motor. AC contactors manage directional rotation, while the PLC programmable control ensures minimal relay use, consistent stability, and longevity. All essential buttons and indicator lights for the complete rolling process are conveniently located on the control table, overseeing the entire operation and status.
CNC system
Our NC system employs a rotational encoder paired with a high-reliability industrial controller, creating a steadfast control mechanism.
CNC function
CThe NC system excels in real-time monitoring, data transfer, and power-off memory retention throughout the rolling process.
The industry control PLC automatically inspects lower and side roller positions, ensuring synchronization precision of ±0.15mm.
A programmable display presents real-time positioning of the lower and side rollers, which can be customized.
for optimal performance.
The displacement transducer boasts a resolution of 0.10mm, with display precision maintained at ±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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