Uncoiler
Advantages in Operation and Production Efficiency
High Degree of Automation: By adopting an automated control system, such as a PLC numerical control box, etc., operations like automatic feeding, uncoiling, and material feeding can be realized. This reduces manual intervention, lowers labor intensity, and improves production efficiency.
Quick Coil Change: The double-station uncoiler is equipped with two symmetrical expanding and contracting drums. While one drum is uncoiling, the other can be prepared for feeding, enabling quick coil change, reducing non-working time, and enhancing the continuity of the production line.
Efficient Uncoiling: The basic operation is simple, and it can be quickly started to achieve an efficient uncoiling process, providing the coil material quickly and stably for subsequent processing procedures.
Advantages in Material Handling
Wide Application Range: It can handle coil materials of different materials, such as carbon steel, stainless steel, aluminum alloy, etc., and can also adapt to coil materials of different widths, thicknesses, and weights. The applicable material thickness range can be from 0.1mm to 6.0mm, the material width is from 0 to 2000mm, and the material weight is from 50kg to 20000kg.
Precise Tension Control: Equipped with a tension control system, it can precisely control the tension of the metal coil material during the uncoiling process, reducing the deformation and undulation of the material, ensuring the flatness of the material, and improving the processing accuracy.
Smooth Material Discharging: Through a reasonable mechanical structure design and power system, such as a hydraulic transmission system, the smooth lifting and translation of the material can be realized, avoiding the impact and damage to the material and ensuring production safety.
Advantages in Processing Accuracy
Precise Positioning: Through the precise cooperation of the electrical control system and the hydraulic system, etc., the precise control of the material position can be achieved, ensuring the position accuracy of the coil material during the uncoiling process and improving the product quality.
Error Reduction: The automated fixed-length system and advanced sensors, etc., can accurately measure the length of the coil material, precisely control operations such as material feeding and cutting, making the dimensional error of the plate extremely small and meeting the requirements of high-precision processing.
Advantages in Equipment Performance
Strong Load-bearing Capacity: Models such as heavy-duty uncoilers and hydraulic uncoilers have a high load-bearing capacity. The load-bearing capacity of hydraulic uncoilers can reach 2 tons to 20 tons, which can easily meet the uncoiling requirements of coil materials with large loads.
Good Stability: The machine body is usually of a welded box structure, and key components such as drums are reasonably designed. For example, with the configuration of external support bearings, support arm devices, etc., the uncoiler has good rigidity and stability during the working process.
Energy Saving and Environmental Protection: The hydraulic transmission system has a high energy conversion efficiency. At the same time, a low-noise and low-energy-consumption design scheme is adopted, which helps to reduce energy consumption and environmental pollution.
Structural Composition
Drum System: It is composed of a hollow core shaft and sector plates. The core shaft has a cantilever structure and is connected to the sector plates through dovetail grooves with a slope, which can achieve radial expansion and contraction to hold or release the steel coil tightly. The tail end of the drum shaft is connected to a rotary cylinder, and the axial sliding of the four-sided shaft is driven by the piston rod to control the expansion and contraction of the sector plates.
Transmission System: It is usually composed of a variable frequency speed-regulating motor, a gearbox, etc. The motor provides power, and after being decelerated by the gearbox, it drives the drum shaft, enabling the drum to drive the steel coil to rotate.
Machine Body Structure: Generally, it is a welded box-shaped structure, which has high strength and stability and provides a support and installation foundation for other components.
Support Arm Device: It is located at the head of the drum. When there is a steel coil, the cylinder drives the support arm to hold the head of the drum, enhancing the stability of the drum during the uncoiling process. Usually, the support arm is retracted.
Tensioning Device: Such as a rotary cylinder, it drives the four-sided shaft through components like the piston rod and the tie rod to achieve the expansion and contraction of the sector plates, thereby tensioning or releasing the steel coil.
Control System: With the PLC as the core, it can realize operations such as automatic feeding, uncoiling, and material feeding. It can also precisely control parameters such as tension and position. Some are equipped with a touch screen for convenient operation and parameter setting.
Working Principle
The steel plate uncoiler drives the drum shaft to rotate through the motor and the reducer, enabling the drum to drive the steel coil to rotate and achieve uncoiling. At the same time, the rotary cylinder pushes the inclined slider to make the sector plates expand and contract radially to tension or release the steel coil. During the uncoiling process, the tension control system ensures that the steel plate maintains an appropriate tension when it is unrolled, and the centering control system makes the steel plate automatically centered, ensuring the uncoiling quality and the smooth progress of subsequent processing.
Technical Parameters
Applicable Steel Plate Thickness: The common range is 0.1mm - 6.0mm, which varies with different models. For example, some small uncoilers are suitable for steel plates with a thickness of 0.2mm - 2.0mm.
Applicable Steel Plate Width: Generally, it is 0 - 2000mm. Specifically, according to the equipment specifications, for example, some can process steel plates with a width of 400mm - 1350mm.
Steel Coil Weight: Usually, it is 50 - 20000kg, and heavy-duty uncoilers can bear heavier steel coils.
Motor Power: According to the size and performance of the equipment, it ranges from several tens of kilowatts to over one hundred kilowatts. For example, the motor power of a small uncoiler may be 30kW - 50kW, and that of a large one can reach over 100kW.
Uncoiling Speed: Generally, it is several meters to dozens of meters per minute. The speed of a high-speed uncoiler can reach over 50 meters per minute.
Tension Control Range: It can be precisely adjusted within a certain range according to the material and thickness of the steel plate, such as 500N - 5000N.
Application Scenarios
Automobile Manufacturing Industry: It is used to uncoil the steel plate coils and provide flat steel plates for the stamping and forming of components such as automobile bodies and chassis.
Home Appliance Industry: It provides flat steel plates after uncoiling for the production of the outer shells and internal structural components of home appliances such as refrigerators, air conditioners, and washing machines.
Construction Industry: In the manufacturing of steel structures and the processing of building plates, the steel plate coils are uncoiled and then used to make steel beams, steel columns, roof panels, wall panels, etc.
Mechanical Manufacturing Industry: It provides steel plates after uncoiling for the processing of the outer shells and components of various mechanical equipment.
