Manufacturing: The 10T or higher capacity unwinding machine is designed to support steel coils and facilitate the unwinding process. It consists of a wire-diameter rail base, an expandable and retractable winding drum, hydraulic cylinders and rotary joints, three-axis rotation mechanism, a servo motor-driven power and transmission system, pneumatic disc brakes, and a coil-unwinding clamping arm assembly. During initial coil unwinding and threading, the machine operates in active unwinding mode; under normal operation, it can switch between automatic unwinding and counter-tension unwinding modes, making it suitable for a wide range of sheet metal processing requirements. The pressure roller can firmly clamp the material head, and after cutting through the packaging straps, it can rotate freely, facilitating the expansion, contraction, and movement of the unwinding machine.

Advantage: The entire production line operates at high speed with smooth and stable performance.

Manufacturing: Polyurethane pinch rollers, five sets of leveling rollers, and head-end leveling for plates thicker than 2.0 mm, all controlled by servo motors.

Advantages: The surface is protected from scratches, and high-speed operation is smooth.

Manufacturing: The disc shear consists of several components, including the main body, the power unit, and the base. The lower blade shaft is fixed. The upper blade shaft uses copper-block turbine rods for precise and accurate vertical movement. The blade holder frame is driven by a servo motor and leadscrew for smooth and controlled motion. By using spacer sleeves, blades can be arranged freely to meet the required specifications for slitting operations.

Advantage: To ensure high-quality slitting, the copper block on the upper knife shaft moves up and down via a turbine rod, while the depth of the lower knife is finely adjusted manually. This guarantees precise cutting of the strip material into the desired finished width.

Flat Tension Station Manufacturing: The flat tension station consists of upper and lower clamping devices, a slitting shear machine, guiding rollers, and a base. The separating shafts pre-divide the coil material to prevent overlapping; the tensioner adjusts the winding tension to ensure neat and orderly coiling.

Precise Tension Control: Real-time adjustment of the tension—either stretching or clamping—on the strip material, preventing slackening, wrinkling, or breakage during operation, and accommodating the requirements of strips made from various materials (such as steel, aluminum, copper, etc.) and of different thicknesses. Synchronized Shearing: Linked to the shearing speed of the slitting machine, ensuring that the strip is slit under uniform speed and constant tension conditions, thereby guaranteeing smooth cut surfaces and meeting the specified width tolerances. Correction Assistance for Enhanced Reliability: Partially integrated correction mechanisms correct any deviations in the strip’s movement, preventing edge scratches or cutting inaccuracies and improving product yield. Load Buffer Adjustment: Absorbs tension surges caused by the strip’s start-up, stop, and speed changes, protecting the slitting machine’s blades and drive system, and extending the equipment’s service life.

High-wear-resistant, low-elongation polyurethane or rubber synchronous belts are selected. The pulleys feature an anti-slip tread design to ensure sufficient transmission friction. Equipped with lead screw or cylinder-type adjustment components, the system achieves a precision of ±0.5 N, enabling fine-tuning of tension and rapid locking, thus accommodating various belt material requirements. The frame is constructed from welded steel plates and undergoes aging treatment to relieve internal stresses. It is paired with dust covers and safety guards, striking a balance between rigidity and operational safety. The system connects to the main drive of the slitting machine via a coupling or synchronous pulley, ensuring a speed synchronization error of no more than 1% and preventing uneven stretching of the belt material.

Flexible Tension Application: Tension is transmitted via surface contact between the belt and the strip material, avoiding indentation or damage caused by point contact. This approach is ideal for thin materials (0.1–1.0 mm) and surface-sensitive strip materials. Dynamic Tension Balancing: Real-time response to changes in the slitting machine’s speed, automatically compensating for belt elastic deformation to maintain constant tension (fluctuation range ≤ ±3%), thereby preventing strip slackening or breakage. Coordination with Cutting and Coiling: Linked with cutting tools and coilers to ensure uniform feeding of the strip during slitting, improving the flatness of the cut edges and the neatness of the coiled strips. Auxiliary Protection Features: Integrated tension overload alarm and belt misalignment detection; the system automatically shuts down upon detecting abnormalities. Some configurations include a belt tension monitor that supports visual adjustment of parameters.

Manufacturing: The components are made of No. 45 steel and undergo tempering treatment. The surface is either chrome-plated or nitrided (hardness ≥ HRC50) to ensure wear resistance and deformation resistance. The shaft design features an inflatable structure with an expansion accuracy of ±0.1 mm, guaranteeing firm core fixation and convenient loading and unloading. Precision control of the transmission system: Equipped with a servo motor combined with a planetary gearbox, the transmission ratio error is ≤0.02%. A ball screw drive is employed, enabling a winding speed response time of ≤0.1 s and achieving real-time matching with the slitting machine’s cutting speed. Frame and balancing structure: The frame adopts a box-type welded structure, subjected to vibration aging to relieve internal stresses, with a deflection of ≤0.2 mm/m. A hydraulic balancing device is installed to ensure uniform force distribution on the winding shaft during the winding process, thereby preventing tilting of the material end faces.

Advantages: Seamless and tight winding is achieved through a hydraulic tension control system that adjusts the winding force in real time, ensuring that the gap between strip layers is ≤0.03 mm. This prevents loose winding and wrinkling, and guarantees uniform roll diameter (circularity error ≤ 0.5%).

Speed Synchronization and Adaptation: Relying on a servo drive system, the machine automatically matches the slitting speed of the longitudinal slitter (adaptation range: 5–150 m/min). During start-up, shutdown, and acceleration, it ensures smooth speed transitions, preventing strip stretching or accumulation.

End-face alignment control: Adjust the lateral position of the winding shaft using a guide rod and a spacer shaft to ensure that the end-face flatness of the wound material is ≤ ±0.2 mm/1000 mm.

There is one main operator console, one auxiliary unwinding console, and one auxiliary stacking console. The entire line adopts centralized control. The main operator console features a 10-inch digital display, high- and low-speed adjustment, manual feed, continuous cutting, and fault alarm functions. The speed-control system’s programmable logic controller (PLC) is a product of Siemens. Electrical control components are either imported products or joint-venture products of comparable quality. Standard electrical cabinets, the main control console, auxiliary control consoles, push-button boxes, detection components, as well as cables and wires—all are utilized. A touch screen provides convenient control for switching between manual, single-cycle, and automatic modes, and allows real-time monitoring of the operational status of each component, ensuring safe and efficient operation of the production line.