Discover the future of precision steel fabrication with our cutting-edge four-roller plate rolling machine, where the top roller serves as the pivotal driving force behind its unparalleled performance. It serves as the primary drive, showcasing exceptional rotational capabilities. The lower roller gracefully adjusts its height to guide the plate into position, ensuring flawless friction alignment along its length. Meanwhile, the two side rollers perform an elegant ballet, moving at a precise angle to create the desired plastic deformation in the steel plate. With its adjustable side roller, this machine masterfully balances symmetric and asymmetrical bending, resulting in a virtually flat end. This innovation surpasses three-roller machines by eliminating the need for pre-bending procedures and offering efficient rough leveling, making it an essential asset across diverse industries, including petroleum, chemical, boiler manufacturing, shipbuilding, hydroelectricity, metal structures, and machinery.
Machine construction:
The heart of this advanced machine lies in its expertly crafted core structure, comprising the upper roller device and driving unit, lower roller devic, side roller apparatus, a sophisticated hydraulic drop end system, lubrication unit, robust left and right frames, sturdy chassis, and more, ensuring seamless operation.
(body frame drawing)
top roller and driving assembly
The Top roller device is a marvel in engineering, incorporating the top roller, hydraulic drop end, fixed bearing, dynamic hydraulic motor, and bearing, all working harmoniously.
The top roller is powered by a connected hydraulic motor, initiating smooth rotation. A protective steel bushing complements the hydraulic drop end, ensuring durability and reliability.
movement. The hydraulic drop end is thoughtfully equipped with a protective steel bushing.
lower roller and position inspection unit
The lower roller device is an engineering masterpiece, featuring the lower roller, an oil cylinder, lower roller bearing, and a self-aligning bearing, all meticulously designed.
Each sliding bearing block, supporting the lower roller, aligns seamlessly with the frame guide rail. It is expertly mounted on two oil cylinders, empowered by the hydraulic system for precise up-down movement. The main oil cylinder performs optimally at a rated pressure of 16Mpa. Sensors meticulously track the up-down distance, which is clearly displayed on an LCD, while the hydraulic system's adjustable pressure ensures precise hydraulic power to achieve the desired rolling force.
(hydraulic drivers drawing)
side roller apparatus
The side roller device is a testament to precision engineering, comprising the main oil cylinder, self-aligning bearing, and other essentials, all working in harmony.
Bearing blocks support the side roller with grace, each side synchronizing seamlessly with the frame's guide rail for optimal functionality.
The side roller bearing block's vertical movement is precisely driven by four strategically placed oil cylinders within the frame. Sensors, cleverly installed on the side rollers and frame, measure movement with precision, with results prominently displayed on an LCD.
For crafting exquisite cone shapes, self-aligning bearings are expertly employed for both side and lower rollers. With the lower roller maintaining level alignment, fine adjustments allow a perfect fit between lower and side rollers, introducing a subtle inclination to the horizontal for superior results.
3-4, hydraulic drop end
The hydraulic drop end device is a marvel of engineering, featuring oil cylinders, joints, bearing blocks, and more, all meticulously designed for optimal performance.
The hydraulic drop end system enables seamless product removal along the roller shaft, ensuring efficiency and precision.
When the hydraulic drop closure or opening is complete, the oil cylinder's stroke is meticulously reset to zero, ensuring readiness for the next operation.A reliable hydraulic station serves as the unwavering power source, ensuring consistent and efficient operation.
Balance device
Ingeniously crafted for peak performance, the balance device features a revolutionary compact structure. It ensures exceptional stability whenever the tipping rack disengages from the upper roller's bearing face, instigating the tipping sequence. As the force of gravity pulls the top roller's end downward, this meticulously designed balance device adeptly maintains equilibrium. Positioned strategically on the fixed side, this device is affixed with precision screws at a calculated distance from the stable frame, guaranteeing unwavering stability and optimal efficiency.
(plate rolling drawing)
Hydraulic System
Our cutting-edge hydraulic system is a masterpiece of engineering, crafted with a high-precision gear pump, an advanced valve group, and supporting pipelines that ensure effortless and seamless operation.
Utilizing the Yuken superposition series, the hydraulic valve ensuresa
beautifully streamlined pipeline configuration, significantly reducing leakage while simplifying maintenance for exceptional operational efficiency.
This system's architecture is brilliantly designed with three distinct loops: the pressure adjusting loop, synchronization loop, and speed loop, each fostering a symphonic operation and unparalleled harmony.
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 precisely fine-tunes the concurrent movement of the lower roller, employing the flow divider and throttle valve for meticulous speed adjustments.
The speed loop deftly manages frame descent, reset operations, and speed adjustments through the throttle valve, ensuring smooth and controlled operation.
Electric Control System
Our electric control system is a marvel of modern technology, encompassing an integrated electric cabinet, an advanced operation control table, and a portable button box, all operating at 380V/50Hz. It is fortified with short circuit and overload protection for the main motor, utilizing an AC contactor for seamless positive and reverse rotations. By leveraging PLC programmable control technology, the system minimizes relay usage, enhancing stability and longevity. Ergonomically arranged buttons and indicator lights on the control table streamline the rolling process, overseeing every operational facet with unparalleled precision.
CNC System
Expertly designed, the NC system features a rotational encoder and a high-reliability industrial controller, establishing a dependable and consistent control framework.
CNC Function
CThis sophisticated NC system provides real-time monitoring, seamless data transmission, and reliable power-off memory throughout the entire rolling process, ensuring uninterrupted operations.
The industrial control PLC performs automatic inspections of the lower position and both ends of the side roller, ensuring synchronization precision with an accuracy of ±0.15mm.
The programmable display offers real-time visibility of the lower roller and side roller end positions,
with parameters that are effortlessly configurable and easy to set.
With a displacement transducer resolution of 0.10mm, the display precision achieves an extraordinary level of accuracy 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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