Auxiliary Support: The steel plate is required to be welded and annealed. Application: The auxiliary support is used to brace the cantilever end of the unwinding machine’s reel, thereby enhancing the rotational rigidity of the reel. The auxiliary support consists of a toggle-link mechanism driven by a hydraulic cylinder that raises or lowers the swing arm. During unwinding, the swing arm rises to support the cantilever end of the unwinding machine; during winding, the swing arm lowers. The raising or lowering of the supporting arm does not interfere with the trolley’s entry or exit.

Uncoiler: The uncoiler has a load-bearing capacity of 10 tons. The reel expansion and contraction range is 25 mm (from Φ465 mm to Φ520 mm; with the addition of an expansion sleeve fitted with a rubber cover, the diameter can increase up to Φ610 mm). The uncoiler consists of a reel, a base, and a transmission system, and is equipped with hydraulic auxiliary supports.

The primary function of the drive system is to actively feed material and unwind coiled material. During linked operation, the rotation of the reel is driven by the pinch-roller traction unit. The unwinding process maintains constant tension, and the tension level is adjustable.

Feeding device, clamping and conveying device, purpose: To feed sheet material into the feeding traction machine.

Structure and Application: This machine is used for cutting irregularly shaped sheet materials, preparing them for subsequent processing steps. It is driven by hydraulic cylinders. When cutting sheets of varying thicknesses, the gap between the shear blades can be manually adjusted. The four-sided shears feature interchangeable blade edges that can be used alternately. The cutting direction is from top to bottom, with burrs directed upward. The frame is constructed by welding steel plates, and the upper and lower blade holders are made of cast steel. Shear blades: four-sided blades, material: SKD-11, hardness: HRC61±1º per set. Hydraulic power source: hydraulic shear—hydraulic cylinders: FA-Φ150mm (2 units).

The swing bridge spans across both ends of the pit and consists of an arc-shaped support surface made up of a motor-driven central bridge and several idler rollers. As the material head advances, the central bridge swings upward to facilitate material passage. Once the material head is fed into the roller clamp and securely clamped, the central bridge swings down again, forming a flexible storage loop. The storage loop pit is equipped with photoelectric switches positioned at upper and lower material levels, and the longitudinal shear machine serves as the main speed controller for the production line.

Side-guide correction and material-pressing mechanism and its application: This mechanism is used for positioning in the width direction of the steel plate to prevent it from shifting off course. On each side of the steel plate’s width, there is a vertical roller mounted on a respective sliding seat. By manually adjusting the sliding seats along the guide rails in the width direction of the plate, the mechanism can accommodate different plate widths. The vertical rollers have undergone quenching treatment, and their surfaces have been chrome-plated to increase surface hardness and resist mechanical wear. The mechanism is manually controlled and consists of side guiding rollers, movable sliding seats, lead screw guides, and adjustment handwheels. There are three guiding vertical rollers on each side, with a specified roller diameter. The guiding adjustment handwheel is located on the operator’s side; the two side guiding rollers can be adjusted independently and moved simultaneously to achieve centering.

Main materials: Guide roller material GCr15, chrome-plated; guide lead screw material 40Cr, tempered; guide smooth rod material 40Cr, with chrome-plated surface.

Equipment and Applications: The slitting machine is a device that longitudinally cuts coil materials into strips of various widths. By simply swapping out the modular spacer sleeves, the width of the finished slits can be flexibly adjusted. The blade shafts are adjusted using a lower fixed shaft and an upper shaft equipped with a worm-gear mechanism for synchronized adjustment of the blade spacing, enabling highly precise control over the gap between the upper and lower shafts. Both the upper and lower blade shafts are secured axially by nuts, and each shaft end is fitted with a blade-protecting sleeve. This machine is driven by a DC motor and can operate in both forward and reverse directions as a single unit. It features a side-opening frame, making blade replacement particularly convenient.

It is required to ensure long-term stable cutting accuracy. The machining process must be scientifically designed, and the machining accuracy must be high. The radial runout of the tool spindle shall be ≤0.02 mm, the axial runout shall be ≤0.006 mm, and the parallelism of the tool spindle shall be 0.04 mm/m. Strips are required; rubber rings are not permitted.

Made of steel plates, cast iron base, synchronous gearbox, universal joint transmission, and electric screw lifting mechanism.

Both the upper and lower knife shafts are driven by active rotation, with dimensions of Φ220mm × 1650mm. The material is 42CrMoV. After quenching and tempering followed by rough machining, the shafts undergo medium-frequency treatment, grinding, and hard chrome plating. The keyway measures 30mm.

Tool spindle locking: The nut secures the tool, featuring a wooden-board-type unloading mechanism and equipped with four Taiwanese hydraulic nuts.

Main bearings: NSK bearings from Japan

Knife holder movement: The knife holder moves via hydraulic actuation for both entry and exit, while the upper knife shaft is electrically raised and lowered. Rotational power is supplied from a 160-kW DC motor mounted at the fixed end of the knife shaft, and the rotational speed is regulated by a DC controller.

Structure and Function: The edge-material coiler is a device used to wind up the edge materials from both sides after slitting.

The motor drive is frequency-controlled, maintaining constant torque during the winding of scrap edges to ensure synchronization with the slitting machine’s speed. Equipped with a tensioning device, the edge-winding machine neatly and orderly coils the scrap edges into compact rolls. It also features an expansion-retraction mechanism for manual material unloading. On the discharge side of the slitting machine, this unit collects the scrap edges generated from both sides of the sheet material, automatically arranging them in linear fashion and incorporating an expansion feature. The scrap-winding machine is driven by an AC motor, with adjustable speed and winding torque. The winding disc adopts a mechanically expandable and contractible design, ensuring tight and compact winding; manual unloading is performed, and the scrap material rolls into a shallow waste pit. The material-handling bridge is pneumatically oscillating.

The swing bridge spans across both ends of the pit and consists of a hydraulically swinging middle bridge and an arc-shaped support surface made up of several idler rollers. As the material head advances, the middle bridge swings upward, facilitating the passage of material. Once the material head is fed into the roller clamp and securely clamped, the middle bridge swings down, forming a storage loop. The storage loop pit is equipped with photoelectric switches positioned at upper and lower material levels, and the longitudinal shear machine serves as the main speed controller for the production line.

Flat-type roller tensioner with steel strip guide (without this device, the strip entering the tension station is more likely to deviate). Application: Correcting the direction of stainless steel strips. Structure: Disc-type guide with pneumatic expanding shaft for rapid positioning.

Two sets of guiding devices—one located at the pit exit, with hydraulic cylinders for lifting and lowering, and the other fixed at the entry of the tensioning table. Between these two sets of guiding devices is a anti-jump pressure roller that is hydraulically raised and lowered.

Application: The tensioning station applies positive pressure to the strips, generating winding tension and facilitating tighter material tensioning. Structure: The pressing plate features a felt-based design. The clamping slider is raised and lowered by hydraulic cylinders, and the pressure on each side can be adjusted independently.

The pressure foot working surface features a toothed texture, making it easy for the felt to grip tightly and facilitating its replacement and cleaning. The operator’s side is equipped with a hydraulic pressure调节 valve and an air pressure调节 valve. Main components include: the frame, separating rollers, pinch rollers, and others. Tension pad: The upper layer is made of wool felt.

Hydraulic shear: The frame is welded from steel plates, and the upper and lower blade holders are made of cast steel. Blades: Four-sided blades, material: SKD11, hardness: HRC61±1º per set. Hydraulic power: Hydraulic shearing—hydraulic cylinders: FA-Φ150mm (2 units). Guide rollers and feeding support plate.

The discharge side of the tensioner is equipped with a material-guiding roller whose surface is coated with polyurethane rubber. The roller shaft end is fitted with a speed encoder for the winding machine. The tensioner features a feeding support plate at the material head, which facilitates feeding material into the clamping jaws of the winding machine.

The motor drive is frequency-controlled, maintaining constant torque during the winding of scrap edges to ensure synchronization with the slitting machine’s speed. Equipped with a tensioning device, the edge-winding machine neatly and orderly coils the scrap edges into compact rolls. It also features an expansion-retraction mechanism for manual material unloading. On the discharge side of the slitting machine, this unit collects the scrap edges generated from both sides of the sheet material, automatically arranging them in linear fashion and incorporating an expansion feature. The scrap-winding machine is driven by an AC motor, with adjustable speed and winding torque. The winding disc adopts a mechanically expandable and contractible design, ensuring tight and compact winding; manual unloading allows scrap materials to roll into a shallow waste pit. The material receiving bridge utilizes a pneumatic swinging mechanism.

The swing bridge spans across both ends of the pit and consists of a hydraulically swinging middle bridge and an arc-shaped support surface made up of several idler rollers. As the material head advances, the middle bridge swings upward, facilitating the passage of material. Once the material head is fed into the roller clamping mechanism and securely held, the middle bridge swings down, forming a flexible storage loop. The storage loop pit is equipped with photoelectric switches positioned at upper and lower material levels, and the longitudinal shear machine serves as the main speed controller for the production line.

Flat-type roller tensioner with steel strip guide (without this device, the sheet metal entering the tension station is more likely to deviate). Purpose: To straighten the path of stainless steel sheets. Structure: Disc-type guide, pneumatic expanding shaft for rapid positioning.

Hydraulic manipulator auxiliary support: Requires steel plate welding and annealing treatment.

Application: Supports the cantilever end of the unwinding machine’s reel, enhancing the rotational rigidity of the reel. The auxiliary support consists of a toggle-link mechanism driven by a hydraulic cylinder that raises or lowers the swing arm. During unwinding, the swing arm is raised to support the cantilever end of the unwinding machine; during winding, the swing arm is lowered. The raising or lowering of the support arm does not affect the movement of the trolley in or out.

Hydraulic System Components and Applications: The hydraulic system controls the operation of the entire production line’s hydraulic components. It employs centralized control and consists of one hydraulic power unit, multiple valve manifolds, and several pipelines. The main components include the oil tank, the oil pump-motor assembly, the hydraulic valve manifold, and the hydraulic pipelines.

Composition and Applications: The pneumatic system consists of an air source (provided by the user), air source treatment components, solenoid valves, corresponding piping, and cylinders. The solenoid valves and pneumatic control components are imported products; the air source is provided by the user.

Composition and Functions of the Control System: The system is equipped with a main operator console, an auxiliary unwinding console, and an auxiliary coiling console. The entire line adopts centralized control. The main operator console features digital display, high- and low-speed adjustment, manual feed, continuous slitting, and fault alarm functions. The speed-control system and programmable logic controller (PLC) are both products of Siemens GmbH from Germany. Other electrical control components are either imported products or joint-venture products of comparable quality. The main control console, auxiliary control console, button boxes, detection components, as well as cables and wires—all are included. Utilizing a touch screen for control, production process parameters—including speed—can be conveniently set and modified. It also allows for easy switching between manual, single-cycle, and automatic modes, and provides real-time monitoring of the operational status of each component. This ensures the safe and efficient operation of the production line.