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3 roller hydraulic Plate rolling machine

1. This type of plate winding machine has the function of plate end pre-bending, and the remaining straight edge of pre-bending is less than 2.5 times the plate thickness.

2. Adopt EPS automatic electronic leveling technology, real-time monitoring, and real-time adjustment, automatically adjust the upper roller levelness, and keep the upper and lower rollers parallel.


3. The unique post-bending process of this type of plate rolling machine can realize pre-bending at the end, continuous bending without a back corner, and the bending process is a fully digital display.


4. Large-size LCD touchscreen digital display, man-machine dialogue control interface, efficient and intuitive operation.


5. The fixed disturbance compensation of the upper roller is combined with the variable disturbance compensation of the lower roller to effectively overcome the influence of disturbance deformation and improve the straightness of the product.


6. With a variety of overload and safety protection functions, interlocking, automatic fault alarms and prompts, can effectively prevent misoperation, and protect the safety of equipment and operators.


7. High strength overall welded chassis and bracket, strong structure, durable. The chassis adopts a frame structure, high torsion section coefficient, fewer anchor bolts, and convenient installation and debugging.


8. The whole frame is annealed to eliminate stress and never deform.


9. The work roller is 42crmo integral forging, after the tempering, quenching hardening process. The roller material is 45# steel, tempered treatment, hardness HB190~220.


10. Hydraulic valve selection superposition valve series, pipe layout is simple, easy to maintain and debug.

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Roller mounting device

The upper roller device is composed of an upper roller, main oil cylinder, upper roller bearing seat, and double row aligning bearing.
Two master cylinders provide the pressure required to roll the sheet, and the working pressure of the master cylinder is 19.5MPa.
Double row aligning bearing adopts low speed and heavy duty aligning roller bearing.
The upper roll is shaped like a drum, which is used to compensate for the deformation deflection of the upper roll.
The upper roll is made of 42CrMo, tempered after rough processing, HB260-300; After finishing, medium frequency quenching HRC45-50.

Lower roller and horizontal moving device

The lower roller device is composed of a lower roller, lower roller bearing seat, lower roller sliding bearing, lower roller input gear, etc.
The lower roll device provides positive and negative torque for the coil sheet. Through the main drive output gear and lower roller input gear, transmission torque.
The lower roller is made of 45# steel, tempered and processed, and the surface of the roller body is mechanically strengthened.
The lower roller sliding bearing is made of SF-1 self-lubricating composite material.
The horizontal moving device is powered by the horizontal moving motor and drives the frame and upper roll components to move horizontally through the worm transmission mechanism and the spiral transmission mechanism to realize the pre-bending of the workpiece and the asymmetric winding.

Lower roller and horizontal moving device

The idler device is composed of an idler combination, oblique wedge mechanism, and spiral mechanism.
The adjusting screw drives the two groups of inclined wedges close to or separate, thereby raising or lowering the idler combination.
The roller is made of 45 steel, tempered treatment, and hardness is lower than the lower roller.

Main drive system

The main drive system is composed of the main motor, reducer, output gear, etc.
The system can rotate positively and negatively to provide working power, and transfer torque to the lower roll through the main reducer, output gear, and lower roll gear, so that the lower roll rotates, and relies on friction to drive the plate feed to complete the winding work.

Tipping device

The tipping device is composed of a pin shaft, a ram, a tipping hydraulic cylinder, a support, etc.
The tipping hydraulic cylinder drives the tipping frame to tip over or reset. When the frame is tipped over, it is easy to remove the product along the tip end.

◆ Balancing device： The balancing device consists of two pull rods and a balancing beam.
After the tipping side frame is overturned, the balancing device presses the tail of the upper roll to maintain the balance of the upper roll.

◆ Rack： Fixed and overturned frame for welding parts, after welding vibration aging to remove stress treatment. The frame is used to mount the hydraulic cylinder and move the upper roll components horizontally.

◆ Base plate： The chassis is a box welded structure, an annealing treatment. Used to install components.

Hydraulic system

The hydraulic system is composed of a gear pump, valve group, fluid connecting parts, hydraulic auxiliary parts, etc.
Hydraulic valve selection superposition valve series, the pipeline is not only simple but easy to maintain and debug.
The system consists of three circuits, an overpressure protection and pressure regulation circuit, a synchronization circuit, and a speed circuit.
The pressure regulating circuit regulates the working pressure of the system through the main relief valve. The system's working pressure is 19.5MPa.
The synchro loop synchronizes the rise and fall of the upper roll through the shunt throttle valve, and the throttle valve is adjusted up and down; Grating magnetic rule detection, the upper roller synchronous positioning accuracy of ±0.15mm.
The speed loop controls the tilting and resetting of the tilting side frame and adjusts the throttling speed of the loop through the throttle valve.

◆ Various protection： The rise and fall of the upper roll are respectively protected by the relief valve as the pressure limit.

Electrical control system

The electrical control system consists of an electrical control cabinet, an operation table, and a hand-held button box.
Main technical indicators of the system:
The system operating voltage is 380V/50Hz.
The ambient temperature is -5 degrees to 45 degrees.
The control circuit adopts a PLC programmable controller system, fewer relays, reliable operation, and long life.
The control cabinet is equipped with all the buttons and indicators to complete the entire winding process, which can control the working state and operation of the whole machine. The handheld button box provides convenience for the control of key operations in the flow operation.

Numerical control system

The CNC system has the functions of real-time monitoring, in-place control, and short electrical memory in the rolling process.
Real-time monitoring: The touch screen displays the displacement Y up and down the main cylinder of the upper roll and the horizontal movement X of the upper roll at any time.
In-place control function: the number and function keys on the touch screen can set the process parameters, which can realize the in-place control of the upper roll up and down and the horizontal movement.

Upper roller universal plate rolling machine

The machine adopts a drum-shaped upper roller and a smaller diameter lower roller, and the lower part of the lower roller is supported by a roller that can be adjusted up and down.
When the workpiece is rolled, the height of the roller can be adjusted according to the need, and the longitudinal joint width uniformity of the product can be obtained with high precision.

◆ Regulation of rolling thick plates： When rolling a thick plate, the roller rises and gives a reverse pressure to the lower roller to generate a reverse deflection to compensate for the excessive deflection of the upper roller, to achieve a similar curvature radius between the middle and both ends of the product and reduce the uniformity error of the longitudinal joint width of the product.

◆ Regulation of rolled sheet： When rolling the sheet, the roller drops, so that the lower roller can produce a certain deflection under the action of working pressure to compensate for the influence of the upper roll shape, to achieve the middle and two ends of the product winding curvature radius is similar, reduce the product longitudinal joint width uniformity error.

◆ Shape of the article： The uniformity error of longitudinal seam width is small. If properly adjusted, the curvature radius of the middle and both ends of the product are quite close, and the product longitudinal seam width uniformity with high precision can be obtained.

◆ Backbend： The upper roller presses down while the lower roller rotates; The end of the plate adopts direct pressure bending; There is no back corner, the end of the remaining straight edge is controlled on the standard circle, and the roundness of the product is high.

◆ Symmetrical bending： The lower roller turns positively and negatively, pre-bending the two ends of the plate, and then symmetrical winding, the product has a right Angle, the remaining straight edge is difficult to control, and the product is poor roundness

Winding process

◆ End bend：

① The distance between the upper and lower rollers is separated (the upper roller rises a section).
② The upper roll moves horizontally to the left or right, and its position is that the steel plate can be clamped between the upper and lower rollers when the upper roll falls.
③ The upper roll drops
④ Drive the lower roller and bend the remaining straight edge part of the machining side.
⑤ In the same process, bend the remaining straight edge on the other side.

◆ Symmetrical bending： 

① Adjust the upper roll to a symmetrical position with the lower roll, and then feed into the steel plate.
② Start the left and right cylinders and press them so that the upper roller presses the steel plate and drives the lower roller to bend the steel plate
③ Gradually increase the amount of pressure, and repeatedly drive the work roller rotation, to complete the tubular processing. That is to complete the bending of the cylinder.

◆ Discharge： 

Move the upper roll to the middle upper limit position, and the tipping frame does not move in other positions. At this time, the balancing device balances the upper roll. Tipping rack tipping dump.

Tip over rack reset

 When winding circular arc workpieces and other ordinary bending actions, the end is generally bent first.
1) As shown in Figure 5-3, offset the upper roll to one side, adjust the lower pressure to the corresponding height, and bend one end first.
2) Rotate the work roll to bend the middle section.
3) Reverse the operation of the work roll, and move the right side of the completed bending part to the position near the right lower roll.
4) The upper roll rises and shifts to the other side.
5) The upper roller adjusts the lower pressure to the corresponding height and drives the work roller to bend the remaining part of the middle section.
6) Finally, bend the end of the other side.
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ABOUT US
Nantong Tengzhong Machinery Manufacturing Co., Ltd. is China 3 roller hydraulic Plate rolling machine suppliers and OEM/ODM 3 roller hydraulic Plate rolling machine company, located in the north wing of Shanghai Economic Center of Yangtze River Delta, Nantong Haian City Libao Development Zone, is a research and production enterprise to shear machine, bending machine and rolling machine and other machinery R & D, production, sales and service as one of the company specializing in the production of "Tengzhong" brand series hydraulic shearing machine, mechanical shearing machine, Hydraulic bending machine, hydraulic plate rolling machine, mechanical plate rolling machine, hydraulic Angle cutting machine, combined punching and shearing machine and other forging equipment, widely used in light industry, aviation, shipbuilding, metallurgy, instrumentation, electrical appliances, stainless steel products, steel structure construction and decoration industry. Tengzhong machinery has always adhered to the development concept of "producing excellent products, providing perfect service, and satisfying every user", and has always thought for customers and served customers sincerely. We look forward to working with you to create a better future together!
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What are the typical applications of 3 roller hydraulic plate rolling machine in industries such as shipbuilding, aviation or steel structure?

3 roller hydraulic plate rolling machine is widely used across various industries due to their efficiency and precision in bending and rolling metal plates. Here are some typical applications in key industries like shipbuilding, aviation, and steel structures:

Shipbuilding
Hull Construction: The machine is used to roll large steel plates into cylindrical shapes for ship hulls, ensuring structural integrity and optimal hydrodynamics.
Decks and Bulkheads: Plates are bent for constructing decks and bulkheads, which require precise curvature to fit the ship's design.
Tank Construction: Rolling machines help create cylindrical tanks for storing fuel, water, and other liquids on ships.

Aviation
Aircraft Fuselages: The rolling machine is utilized to form the fuselage sections of aircraft, which require specific curvatures for aerodynamic performance.
Wing Structures: Curved components for wings, such as leading and trailing edges, can be produced using a 3 roller hydraulic plate rolling machine.
Aerospace Components: Other parts, such as engine housings and structural frames, benefit from the precision bending capabilities of the machine.

Steel Structure Construction
Structural Beams and Columns: The machine rolls plates to create curved beams and columns used in architectural designs and structures, enhancing aesthetic appeal and structural support.
Bridges and Overpasses: Plate rolling is essential in fabricating components for bridges, including arch sections and other curved structural elements.
Industrial Frameworks: It is used to create curved frames for various industrial applications, including machinery support and building frameworks.

Manufacturing and Fabrication
Storage Tanks: The machine is employed to roll plates for constructing large storage tanks used in various industries, such as oil and gas, chemicals, and water treatment.
Pressure Vessels: Rolling machines are essential in the fabrication of pressure vessels that require precise curvature to withstand high pressures.
Pipes and Tubing: It can be used to roll plates into large diameter pipes and tubes for plumbing, industrial, and agricultural applications.

Decorative and Architectural Applications
Architectural Features: The machine can create curved elements for buildings, such as arches, domes, and decorative facades.
Furniture Design: In the furniture industry, it is used to create rounded metal components for various furniture designs, enhancing aesthetic appeal.

Renewable Energy
Wind Turbine Components: The machine is used to roll plates for the manufacture of components such as towers and blades in wind turbines.
Solar Panel Frames: Rolling machines can also be employed to create curved frames for solar panels, contributing to the renewable energy sector.

The versatility and precision of 3 roller hydraulic plate rolling machine make them indispensable in industries that require accurate bending and shaping of metal plates. Their applications range from heavy-duty structural components in shipbuilding and aviation to aesthetic features in architecture and renewable energy, demonstrating their crucial role in modern manufacturing and construction.