1. Equipment Definition & Core Function:
Definition: The Blinds U-Channel Track Roll Forming Machine is a specialized metal cold roll forming equipment. It belongs to the category of roll forming machines or cold roll forming production lines.
Core Function: The primary function of this machine is to transform continuous metal coil material (typically galvanized steel strip or aluminum alloy strip) into a specific cross-sectional **U-channel track rail through a series of precisely designed forming roller dies, via a gradual, continuous roll forming process.
Target Product: The final formed product is the core support and sliding track component for blinds (especially vertical blinds or some horizontal blinds) - namely the U-shaped cross-section track rail. This rail is used to fix the blind slats (hangers) and provide a smooth sliding track for them.
2. Core Working Principle:
Uncoiling & Leveling: The metal coil is first unwound by an uncoiler and passed through a leveling machine to eliminate inherent coil set, stresses, and wave distortion, ensuring flat material enters the forming stage.
Guiding & Feeding: The leveled strip is precisely guided into the main roll forming unit.
Multi-Stage Roll Forming: This is the core process. The main forming unit houses a sequence of (often a dozen or more) forming roller dies (Roller Dies) arranged in a specific order. Each pair (or set) of rollers applies precise pressure to the strip, causing **progressive plastic deformation.
Gradual Section Formation: The strip passes sequentially through each set of rollers, its cross-section shape is gradually and continuously bent from flat stock into the target U-channel track rail shape (typically including the base, two vertical legs, and potentially features like hemmed edges or stiffening ribs).
Cut-to-Length: The formed continuous U-channel rail is conveyed to a cutting unit (typically a hydraulic flying saw or pneumatic punch shear). Based on preset lengths, the unit precisely cuts the rail into finished pieces of the required size while the material is continuously moving.
Discharge/Stacking: The cut U-channel track rails are automatically collected, stacked, or bundled via a discharge conveyor or stacking device.
3. Main Components:
Uncoiler: Holds and unwinds the metal coil.
Leveling Machine: Removes material stresses and ensures flatness.
Feeding Device: Steadily and continuously feeds the strip into the main forming unit.
Main Forming Unit: The core section, containing the forming mill frame, spindles, forming roller die sets** (most critical component, determines final section shape and quality), lubrication system, drive motor, and gear reducer.
Cutting System: Hydraulic flying saw, pneumatic punch shear, or servo cutting unit for precise cut-to-length.
Electrical Control System: PLC (Programmable Logic Controller) or CNC system to control overall line speed, coordinate component actions, set cut lengths, monitor operation status, and enable parameter storage/recall.
Discharge/Collection Rack: Conveys cut pieces and stacks or collects them.
Base Frame & Drive System: Supports all components and provides power transmission.
Cold Roll Forming Process: Processes material at room temperature via plastic deformation, relatively low energy consumption, high material utilization, work hardening can slightly increase product strength.
Continuous High-Volume Production: Once started, runs continuously at speeds typically 10-30 meters/minute or higher, offering significantly greater efficiency than single-stroke stamping.
High Precision & Consistency: Precisely machined forming dies ensure high dimensional accuracy and shape consistency of the product section, critical for smooth blind operation.
Section Complexity: Capable of producing complex U-sections with features like hems, small bends, or shallow ribs to meet the strength, rigidity, and installation requirements of the track rail.
Material Adaptability: Primarily suitable for ductile metals like mild steel, galvanized steel, prepainted steel, and aluminum alloys commonly used in blinds.
High Automation:Highly automated from uncoiling to cutting and stacking, minimizing manual intervention and labor intensity.
Strong Customizability: Roller dies are designed and manufactured based on the exact cross-sectional drawings of the required rail, enabling the production of various U-channel track rail specifications (width, height, thickness, hem type, etc.).
Quick Changeover (Optional): Some advanced machines feature quick-change roll systems for easier switching between different product specifications.
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