Plate Rolling Machine for Big Diameter

We are a professional plate rolling machine manufacturer with over 10 years of industry experience. Today, we would like to introduce you to the classification of plate rolling machine:

As the core molding equipment in the field of metal processing, the plate rolling machine realizes the plastic deformation of metal plates through precise mechanical structure. According to the differentiated needs of industrial application scenarios, its classification system mainly focuses on the three dimensions of mechanical structure, degree of automation and processing specifications, forming a technical matrix adapted to different production requirements. In the modern manufacturing industry, from spacecraft fuel storage tanks to building dome steel structure, the selection of plate rolling machine is directly related to product precision and production costs, and its classification logic is essentially a systematic integration of material mechanics, motion control and other technologies.

1, Mechanical structure classification

(1) Three-roll symmetric plate rolling machine

Adopting the classical mechanical layout, pressure is exerted by the upper roller, and two fixed lower rollers form the support benchmark. Its structure is compact, easy maintenance, suitable for small and medium-sized cylinder molding, but there are process limitations in the plate end pre-bending link. Typical application scenarios include the molding of mixing tanks in grain and oil machinery, where the symmetrical roll system ensures uniform force in the circumferential direction and avoids ellipticity deviation.

(2) Four-roller linkage type plate rolling machine

By adding adjustable lower rolls and building a rhombic roll system structure, it realizes the function of automatic pre-bending at the end of the plate, which is especially suitable for the efficient processing of continuous closed cylinder. In the rounding process before welding of oil pipeline seams, this model can complete the end molding at one time, shortening the processing cycle by 30% compared with the traditional process.

(3) Vertical rolling machine

Breaking through the traditional horizontal layout and adopting vertical roller arrangement design, it shows unique advantages in shipbuilding and other fields - its footprint is reduced by 40%, while eliminating the deformation deviation caused by the self-weight of plates. It is especially suitable for processing ultra-wide plates (width≥5m), such as the curved reinforcement of the hull deck bending molding, vertical feeding mode can avoid the lateral slip of the plate.

(4) CNC plate rolling machine

Integrated servo drive system and real-time feedback device, through digital control to achieve multi-axis linkage, can accurately reproduce the complex curvature parameters, error accuracy of±0.1mm. in the new energy wind turbine tower manufacturing, can be automatically adjusted through the preset program of the curvature radius of the different zones, to ensure that the consistency of the taper of the 100-meter-class tower.

2, The degree of automation grading

(1) Manual type plate rolling machine

Maintain the basic mechanical transmission characteristics, relying on the operator's experience to adjust the roll distance and pressure control, in the art of customized decorative parts and other flexible production scenarios are still valuable. For example, the bronze sculpture base of the wave-shaped decorative plate processing, the operator can adjust the bending arc in real time to achieve artistic effects.

(2) Semi-automatic hydraulic type

Hydraulic control system is introduced to realize mechanical assistance in key processes such as pre-bending and rounding, which improves the operation efficiency by about 60% and becomes the mainstream configuration for small and medium-sized processing plants. Its hydraulic compensation function can automatically correct the amount of plate springback, and the roundness error can be controlled within 2‰ in the production of boiler head.

(3) Fully automatic intelligent type

Equipped with PLC control system and automatic feeding mechanism, it integrates laser distance measurement and pressure sensing technology to build a closed-loop control system. This model can store 200 sets of processing parameters and realize one-button operation through human-machine interface. In the mass production line of automobile exhaust pipe, the system can automatically recognize the pipe diameter specifications of different models, and complete the continuous processing from flat plate to spiral pipe fittings.

3, Processing specifications classification

(1) Light equipment (processing thickness≤12mm)

Adopting box-type welded body and alloy rollers, it is suitable for ventilation ducts, building curtain walls and other civil fields, and the weight of typical equipment is controlled within 3 tons. Its quick mold change system can complete the switching of different roll types within 15 minutes to meet the needs of multi-species small batch production.

(2) Medium-sized equipment (processing thickness 12-40mm)

Equipped with reinforced frame and segmented support rolls, it can meet the needs of pressure vessels, chemical reactors and other industrial equipment manufacturing, and the maximum molding diameter can reach 6 meters. Adopting temperature compensation technology, the parallelism of the roll system can still be maintained under the working environment of 200℃, which ensures the molding precision of high temperature alloy materials.

(3) Heavy equipment (processing thickness≥40mm)

Applying the pre-stressed frame structure and dual motor drive technology, its rolls are made of forged steel and equipped with water-cooling system, specializing in ship segmentation, nuclear power equipment and other special manufacturing fields. In the steel containment processing of AP1000 nuclear power plant, it can complete the rolling of SA738Gr.B steel plate with thickness up to 60mm at one time, and the deviation of bending radius is less than 1.5mm/m.

From the development trend, modular design is becoming a new technology direction: Through standardized interfaces to achieve a flexible combination of mechanical structure, drive system and control unit. For example, a certain type of plate rolling machine base frame can be compatible with three-roller / four-roller structure, the hydraulic system supports manual / automatic mode switching, this “building block” design makes a single device to cover the range of light to medium-sized processing, and significantly improve the utilization rate of the equipment.

Through systematic classification design, the plate rolling machine can accurately match the multi-dimensional needs of different industries for precision, efficiency and processing capacity, providing customized solutions for the modern manufacturing industry. In addition to considering the existing demand when selecting the type of enterprise, it is also necessary to reserve 10%-15% of the processing capacity redundancy, in order to cope with the process challenges brought about by the material upgrading, and maximize the value of the whole life cycle of the equipment.

If you are interested in plate rolling machine, please contact us.