When it comes to choosing the right آلة الدرفلة, my experience with HARSLE has been invaluable. In this article, I’ll share insights on how to select the perfect rolling machine for your needs. Understanding the various features and capabilities can significantly impact your production efficiency and quality. With HARSLE’s expertise, I have discovered the importance of considering factors such as machine specifications, material types, and intended applications. Join me as I delve into the essential criteria that will help you make an informed decision when choosing the right آلة الدرفلة.

What Are the Different Types of Rolling Machines?

Because of the different fields of use, the types of rolling machines are different. From the number of rollers, it is divided into three-roller and four-roller. Among them, the three-roller bending machine is divided into a symmetrical three-roller bending machine, a horizontal downward-adjusting three-roller bending machine, an arc-downward-adjusting plate bending machine, an upper roller universal three-roller bending machine and a hydraulic CNC bending machine.

In terms of the development of the plate bending machine, the upper roll universal type is the most backward, the horizontal downward adjustment is slightly advanced, and the arc downward adjustment is the most advanced. Three-roller plate bending machine has mechanical and hydraulic type, of which mechanical three-roller plate bending machine is divided into symmetrical and asymmetrical.

Three-Roll Plate Rolling Machine

Performance characteristics of the three-roller mechanical symmetrical plate rolling machine: The structure of the machine is three-roller symmetrical. The upper roller moves vertically at the center symmetrical position of the two lower rollers. It is obtained through the transmission of the screw and screw nut and the two lower rollers rotate. Movement, the output gear of the reducer meshes with the lower roller gear to provide torque for the rolled sheet. The disadvantage of this machine is that the end of the plate needs to be pre-bent with other equipment.

The main features of the three-roller mechanical asymmetrical plate bending machine: the structure of the machine is a three-roller asymmetrical type, the upper roller is the main drive, and the lower roller moves vertically to clamp the plate and mesh with the upper roller gear through the lower roller gear , At the same time as the main drive; the side rolls are tilted and lifted, with dual functions of pre-bending and rounding. Compact structure, convenient operation and maintenance.

The main features of the three-roller hydraulic symmetrical plate bending machine: the upper roller of the machine can be vertically raised and lowered, and the vertical lifting hydraulic transmission is obtained by the hydraulic oil in the hydraulic cylinder acting on the piston rod; the lower roller is driven by rotation, and the output gear of the reducer is meshed. To provide torque for the coil, there is an idler under the lower roller, which can be adjusted. The upper roller is in the shape of a drum, which improves the straightness of the product and is suitable for ultra-long tanks with various cross-sectional shapes.

The up-adjusting symmetrical three-roller plate rolling machine can roll metal sheets into circular, arc-shaped and conical workpieces within a certain range. The two lower rollers of this model are the driving rollers and the upper roller is the driven roller. It is widely used in shipbuilding, boiler, aviation, hydropower, chemical, metal structure and machinery manufacturing industries.

It is suitable for bending and deformation of metal plates. It can roll round, arc and tapered workpieces within a certain range, and has the function of pre-bending the end of the plate. The two lower rollers of this model are active rollers that can move horizontally. The roller is a driven roller that can move up and down. There are mechanical and hydraulic movement modes. The drive shafts are all connected by universal couplings.

Four-Roll Plate Rolling Machine

A four-roll rolling machine is perfect if precision and versatility are your top priorities. It significantly reduces setup time due to its simpler operation, as the plate gets clamped between the top and bottom rolls securely. For tasks requiring frequent pre-bending and a more streamlined process, the four-roll machine excels in efficiency.

Angle and Section Rolling Machine

If your operations involve bending sections, profiles, angles, or pipes, an angle rolling machine (also known as a section rolling machine) is essential. This machine is tailored specifically for profile and structural steel bending, making it indispensable for industries such as construction, aerospace, and automotive manufacturing.

Key Factors to Consider When You Choose the Right Rolling Machine

نوع المادة وسمكها

Understanding the materials you will frequently roll is the first and crucial step. Machines are rated according to maximum plate thickness and width. Clearly identify the toughest job your rolling machine will face, ensuring your chosen model comfortably handles your maximum requirements.

Desired Rolling Precision

Different rolling machines offer varying levels of accuracy. If your project demands precise curvature and tight tolerances, opt for machines equipped with advanced controls such as CNC or digital readouts. These systems offer consistently accurate and repeatable results.

Production Volume and Speed

Analyze your production volume and speed requirements carefully. Higher production demands typically justify investments in automated rolling machines that speed up the bending process and reduce labor costs. Conversely, manual or semi-automatic machines might suit smaller volume and custom jobs.

Machine Durability and Maintenance

Choosing durable equipment is a long-term investment that saves costs in future maintenance and repairs. Select machines from reliable manufacturers who provide strong warranties and after-sales services. Easy maintenance routines and readily available spare parts are also vital considerations.

How to Determine the Right Rolling Machine Capacity?

Identify Maximum Required Rolling Thickness

Begin by determining the maximum thickness of the material you plan to roll. Always select a machine slightly above this rating to accommodate future projects, ensuring flexibility and efficiency.

Evaluate Maximum Working Width

Confirm the maximum width of sheets you’ll handle. Machines have maximum workable widths clearly listed. Pick one slightly wider than your maximum requirements for extra convenience and operational flexibility.

Understand Yield Strength of Materials

Knowing the yield strength of your typical workpiece material helps you match your machine to your projects. Higher-strength materials demand greater machine power and rigidity. Always consider your most challenging material strength scenario when making your choice.

Common Rolling Machine Operational Tips

Generally, the operating efficiency and failure rate of mechanical equipment have a very close relationship with operators. As operators of dangerous equipment, they should learn more about relevant knowledge in order to effectively avoid accidents caused by operator errors. Let us understand the safety requirements of the operation details of the rolling machine:

● First of all, the operator should clean up the surroundings of the work environment before operating to maintain a good operating environment.

● At the same time, the operator’s clothes must be neat and tidy to avoid getting the corners of the clothes into the roll during the operation.

● In the process of work, it must be noted that the operator can only stand on both sides of the workpiece, this is the safest and reasonable position.

● A certain margin should be left at the end of the processed parts.

● If you want to adjust the roundness of the measurement during the operation, you must stop the operation and prohibit the operation during the operation.

● During the process of measuring the roundness of dimensions, the operator is forbidden to stand on the rolled cylinder, and it is forbidden to stand on the workpiece to be processed.

● For some workpieces that are difficult to process: such as thicker or larger diameter, higher raw material hardness or strength, a small amount of work should be done, and the work can be achieved after many times.

● For some workpieces with smaller diameters, they should be rolled in the middle of the roll for operation.

احتياطات

1. The rolling machine must be managed by a dedicated person.

2. The operator must be familiar with the structure, performance and use of the rolling machine, and can only operate after the approval of the responsible manager.

3. Check carefully whether the safety device is in good condition before starting up.

4. During operation, it is strictly prohibited to put hands and feet on the rollers, transmission parts and workpieces.

5. After work is interrupted, the clutch should be turned to neutral.

6. Multi-person collaborative work must be directed by a special person.

7. Overwork is strictly prohibited.

8. The tilting reset of the lifting and turning bearing of the upper roller and the balance of the upper roller must be carried out after the main drive is stopped.

9. It is forbidden to pile up workpieces and debris in the workplace, so that the machine tool and the site are kept clean at all times.

10. After the operation is completed, the power supply should be cut off and the power supply box should be locked.

11. Clean up the coiling machine components, especially the connection place.

12. When assembling the plate rolling machine, follow the principle of from inside to outside, first down then up.

13. In assembly, prioritize the centralized processing of assembly work using the same tooling or the same orientation.

14. During the assembly process, the assembly must be carried out in strict accordance with the design drawings, and the dimensions and specifications must be strictly checked.

صيانة

1. According to the provisions of the machine lubrication diagram, add oil to the lubrication and manual lubrication points of each oil cup as required.

2. Roll the plate according to the parameters specified by the plate bending machine, the thickness of the plate is 20mm, the maximum length is 2500mm, and the yield limit of the plate material is less than 250Mpa.

3. After the power is turned on, carry out the forward and reverse movement of the lower roller and the lifting movement of the upper roller, and check whether each movement is abnormally stuck.

4. Operate strictly in accordance with the processing procedures and operating methods of the coil. When the upper roller is lifted to the limit position, pay great attention to the safe operation of the equipment.

5. When the main drive is stopped, the upper roller can be lifted and lowered, the tilting reset of the flip bearing and the upper roller can be lifted.

6. During operation, if irregular noise, impact, etc. are found, stop the machine immediately for inspection.

7. Pay great attention to the rolling operation, be careful that your hand is pressed by the steel plate and rolled in with the steel plate.

8. When lifting the steel plate or drum with a crane, be careful not to collide with the machine.

9. After the coiling is finished, the finished materials should be cleaned up, and the equipment maintenance should be done, and the power supply should be turned off in time.

Sealing performance

Whether it is a large or small enterprise that uses a rolling machine or a factory similar to a rolling machine manufacturer, this equipment must be equipped with a sealing device to prevent leakage or dust from falling in the processing process.

The sealing element in the hydraulic system of the bending machine is the seal. The seal in the hydraulic system of the bending machine is used to prevent the leakage of fluid or solid particles from the adjacent joint surfaces and prevent external impurities such as dust and moisture. The materials or parts of the parts or parts that invade the interior of the machinery and equipment, and the leakage of the seals in the hydraulic system of the bending machine will cause the waste of working media, pollute the machine and the environment, and even cause mechanical operation failure and equipment personal accidents.

The reliability and service life of the seals in the hydraulic system of the plate bending machine are an important indicator to measure the quality of the hydraulic system. Except for gap sealing, seals are used to control the gap between two adjacent coupling surfaces below the minimum gap that the liquid to be sealed can pass through.

The seals in the hydraulic system of the plate bending machine are in contact sealing, usually There are two types: self-sealing compression seal and self-sealing self-tightening seal (also called lip seal), but the performance factors of various seals in the hydraulic system of the coiling machine are different, just like three-roll coiling The sealing of the machine is actually affected by the temperature, pressure and the existence of different media.

خاتمة

Choosing the right rolling machine doesn’t need to be complicated. Remember to clearly identify your needs concerning material type, thickness, desired precision, production volume, and durability. By carefully matching your requirements with the correct machine, you’ll improve efficiency, precision, and productivity in your metalworking projects.

If you have more questions or need tailored advice on choosing the perfect rolling machine for your operation, don’t hesitate to contact our expert team at HARSLE. We’re here to ensure you select equipment that meets and exceeds your expectations.