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CNC 4 roller Plate rolling machine

 A new generation of oil-electric hybrid technology, energy saving and emission reduction, high efficiency and low heat, and greatly reduced working noise;

Silent when waiting for fast speed (about 25 dB), low noise when bending and returning (the pressure in the hydraulic system is controlled by the main servo motor closed loop);

High-performance motor and oil pump, strong power;

Ram idling, fast movement, pressure retention, and return noise are significantly reduced, more than 30% lower than other noise, while running more smoothly;

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CNC 4 roller Plate rolling machine is an advanced plate rolling processing equipment, that can precisely control the parameters of the plate rolling process, such as the diameter of the plate, the speed of the plate, the thickness, etc., to achieve high-precision processing. It can monitor and adjust the processing parameters in real-time, ensure the precision and consistency of the coil processing, and meet various processing requirements. With automated processing procedures and models, automated production can be achieved, improve production efficiency, and reduce labor costs.

The automatic CNC winding machine system is simple to operate, the operating system is stable, durable, and suitable for all kinds of working conditions, the complete control system includes:

(1) The plate is placed horizontally - not as inclined as the three-roll plate rolling machine;

(2) The use of side roller quickly on the positive plate (r to avoid the risk caused by improper);

(3) Only occupy space on the loading side;

(4) The edge of the straight line section is greatly reduced (due to the outstanding pre-bending ability, the clamping point completely falls on the edge of the plate);

(5) The easiest equipment to roll, each side roller only needs one position to roll molding;

(6) The whole process is formed once (the premise is that the equipment capacity option should be appropriate), including the bending of the plate head;

(7) Sheet bending is suitable for efficient automatic coil manufacturing.

The control system is equipped with a one-key winding function, the first winding board saves the data in the program, and the second winding board can realize automatic winding, and mass production, greatly improving the production efficiency. And can save up to hundreds of product reel programs in the system, and can be called at any time without a staff operation reel.

The hydraulic transmission device is composed of low speed and large torque oil motor, planetary reducer, balance valve, etc.
The hydraulic station uses an independent refrigeration device so that the temperature of the tank is always controlled within 40 ° C.
Hydraulic proportional valve using Yuci oil research

Plate feed

The side roll of the plate is automatically aligned immediately, and the principle of action is similar to that of the hydraulic ruler. The schematic diagram of the structure is as follows:
The plate is always clamped between the upper and lower rollers in the two plays to ensure consistent and ideal positioning.

Solid fuselage construction

The accuracy of the rolling machine depends on the robustness of the frame and chassis.
The plate rolling machine adopts a box structure design with a heavy metal plate.
The frames are connected via a sturdy box-design chassis that meets torsional moments well, rather than sitting on a simply designed H or U beam.
After the welding operation, the frame and chassis have been relieved of stress. The whole body adopts 5-axis machining
CNC machining centers utilize a fixed single reference point. This allows for the parallelism of all axes
Precise surfaces as well as service life and precision are key characteristics of the machine.

Engineering and production advantages

The mechanical and hydraulic systems on the W12 machines are designed by experienced engineers. These engineers utilize parametric 3D engineering techniques and the implementation of static and institutional analysis to design machines.
All mechanical, hydraulic, and electronic systems are designed and tested by electrical and mechanical engineers. Only after a long period of testing and evaluation is the machine authorized for mass production.

Roll and crown

The most important component of the plate rolling machine is the roll itself. Most machines on the market have smaller diameters, and weaker rolls that deform and form flat points at the edge of the plate during pre-bending.
We designed the rolls with a larger diameter and used high-strength forged steel rolls machined by high-precision CNC lathes. The work surface of the roll is subjected to CNC induction hardening to HRC 54-58 (depth 5-6 mm) and hardness testing is carried out at different points of the roll. A minimum bending diameter of 1.1x upper roll diameter is easily achieved.
The roll is machined with a crown to compensate for the deflection of the roll during pre-bending. Custom crown processing rolls of different materials or thicknesses can be used free of charge upon order.

Optional dynamic roll crown

In some cases, the range of plate thickness may be very wide. In this case, it is necessary to use a dynamic roll crown system to eliminate the crown problem. The system is only used to support rolls of thin plates, while when bending thick plates, the hydraulic crown cylinder applies a negative crown to the rolls from the bottom to eliminate deflection that can occur during pre-bending. This system helps to obtain a smoother pre-bent edge.
W12 Series hydraulic drop end on 4 rollers - easy removal of molded parts.

Coning device

With excellent construction, a large body, and the ability to Angle the bottom and side rollers, you can easily bend wide-angle and small-diameter conical parts.

Electrical system

The driving method is to directly drive the worm gear of the ball screw lifter through a servo motor, and the worm gear drives the nut of the ball screw. The rotation of the nut causes the ball screw to rise and fall, and the ball screw is connected to the side roller seat, so that the side roller moves up and down, and the lower roller also moves in the same way. This method differs from other factories that use servo motors to drive hydraulic pumps, and then control the oil cylinder through proportional valves. The stroke of the oil cylinder is then fed back to the PLC through a displacement sensor. In terms of control, our company's method has a more direct control accuracy, and there is no accumulated error, which is a prerequisite for ensuring high-precision rolling.

Ideal for clamping

In the W12 series of roll bending machines, plate clamping is achieved by moving the strong torsion bar of the lower roll. The torsion bar is driven by 2 hydraulic cylinders to ensure optimal parallel clamping of the sheet.
When the cone is bent, a third hydraulic cylinder on the torsion bar tilts the lower roll.
In the W12 series, the lower rollers are driven by powerful hydraulic cylinders at both ends. It is electronically synchronized with each other, with an error of less than 0.1 mm.

Optional side and top support systems

Optional hydraulic side or top supports help prevent cylinder deformation when bending in large shapes. The side supports have hydraulic double cylinders and are made of heavy steel structure.


Vertical support capacity can be manufactured according to different tonnage and height requirements.

PLC control system (Standard)

PLC electronic balance system ensures synchronous operation of lower and side rollers W12 series machines. The process is provided by a PLC and touch operation panel, which controls 6 axes. In addition, the ability to program up to 5 previously experienced bend value setpoints enables ease of use and time savings.
Machine tool electrical control system based on PLC, equipped with electrical control and hydraulic control, to achieve a variety of machine actions. The main operation buttons are based on the console.

Synchronous digital control of the left and right side rollers and the lower rollers must be in the operating state of the console. Down run control. The number of moves for each action is displayed on the touchscreen interface for easy and intuitive operation. Due to the work of the left and right side rollers and the lower rollers, the work of the tipping frame adopts hydraulic power. Start the oil pump motor before moving.
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ABOUT US
Nantong Tengzhong Machinery Manufacturing Co., Ltd. is China CNC 4 roller Plate rolling machine manufacturers and OEM/ODM CNC 4 roller Plate rolling machine factory, 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 is the precision and accuracy of CNC 4 roller Plate rolling machine during the rolling process?

The precision and accuracy of a CNC 4-roller plate rolling machine during the rolling process are among its most critical performance metrics, and they can vary depending on several factors, including the machine’s design, quality of the components, and the control system in place. Here’s an overview of what to expect in terms of precision and accuracy:

Tight Tolerances:
Dimensional Accuracy: CNC 4-roller machines can achieve tight tolerances, typically in the range of ±0.1 to ±0.5 mm depending on the material, thickness, and the complexity of the rolled product. For high-precision applications, this level of accuracy ensures that the final product meets design specifications.
Pre-bending Precision: One of the key advantages of a 4-roller system is its ability to pre-bend the plate with greater precision than 3-roller machines. The pre-bending is performed so that the straight edge of the plate is minimized, improving the overall accuracy of the bend.

Consistent Rolling Radius:
Repeatability: CNC systems control the rolling process with high precision, ensuring that the rolling radius remains consistent throughout the process. For applications like large-diameter cylinders, the machine can roll plates with a consistent radius even across longer lengths or thicker materials.
Accuracy in Cylindricity: The 4-roller configuration allows for more control over the plate during the rolling process, improving the final shape's uniformity, especially in terms of the cylinder's roundness and smoothness.

Precise Control of Material Deformation:
Servo-Driven Rolls: Many CNC 4-roller machines use servo-driven rolls to control the plate’s position with high accuracy, enabling precise adjustments during the rolling process. The CNC system automatically adjusts parameters like pressure, speed, and position, ensuring consistent deformation across the plate.
Real-Time Feedback: These machines are typically equipped with real-time monitoring and feedback systems, allowing for dynamic adjustments during the rolling process. This reduces the chances of errors and ensures high-precision results.

Edge Quality and Bending Consistency:
Edge Alignment: Since the CNC system controls the plate's position and movement, edge quality is improved. Plates are aligned precisely, ensuring straight and accurate edges during the rolling process.
Pre-bending and Clamping: The clamping point in the 4-roller machine typically falls right at the plate’s edge, ensuring minimal straight edge sections after bending and improving overall bending consistency.

Material-Specific Accuracy:
The accuracy can vary slightly based on the type of material being processed (e.g., aluminum, steel, titanium). Softer materials might be easier to roll with precision, while harder materials may require additional fine-tuning of the parameters.

CNC Control Precision:
Digital Precision: With modern CNC systems, the precision in controlling the rolling process is extremely high, often capable of achieving sub-millimeter accuracy. The CNC software ensures that all movements and rolling sequences are carefully controlled, optimizing the bending and rolling accuracy based on the programmed specifications.

The CNC 4-roller plate rolling machine is highly precise and accurate, particularly in applications that require tight tolerances, consistent radii, and minimal straight edge sections. It outperforms traditional 3-roller systems by offering superior pre-bending capabilities and automated, real-time adjustments, ensuring high repeatability and precision in the rolling process.