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Fully automatic lithium battery cutting machine

Rolling cutting method: The upper and lower circular knives are engaged, and the sheet is driven at a constant speed through the servo drive. It is once longitudinally sliced;

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产品描述

I. Core Function and Process Flow
Function: Divide 150-750mm wide sheets into 20-200mm narrow widths, with a width tolerance of ±0.05mm and a burr size of ≤5μm. Avoid burrs piercing the separator and causing short circuits, which directly affects battery yield and safety.
Process Flow: Loading → Unrolling → Tension Control → EPC Correction → CCD Inspection → Rolling Cutter Slicing → Powder Brushing and Dust Removal → Tension Closed Loop → Double-axis Conveying → Automatic Roll Change.
II. Working Principle
Rolling cutting method: The upper and lower circular knives are engaged, and the sheet is driven at a constant speed through the servo drive. It is once longitudinally sliced; combined with a full closed-loop constant tension system (unloading 5-20N, loading 3-15N) and conical tension control, the sheet is ensured to have no stretching, no wrinkles, and stable dimensions during the slicing process.
III. Core Structure
Unloading Unit: Hydraulic tensioner + magnetic powder brake / servo motor, unloading diameter 400-600mm; equipped with EPC photoelectric correction, accuracy ±0.1mm, preventing deviation.
Tension Control: Unloading closed-loop tension + Conveying conical tension, fluctuation ≤±2%; equipped with tension sensor (accuracy ±0.1N), real-time adjustment, suitable for copper foil / aluminum foil / coated sheet.
Slicing Unit:
Cutting Tools: Hard alloy / diamond-coated circular knives, blade angle 20°-30°, knife gap adjustable ±1μm, lifespan 500-1000 000 meters.
Drive: Servo motor + high-precision knife shaft, round runout ≤10μm, slicing speed 50-150m/min (high-end up to 200m/min).
Dust Removal Unit: Brush + air knife + negative pressure + ultrasonic dust removal, dust control ≤0.3μm, preventing powder drop from causing battery self-discharge.
CCD Visual Inspection: 8K/16K camera, inspecting width, burrs, shortage, pinholes, powder drop, accuracy ≤0.05mm, automatically marking defective products.
Conveying Unit: Double slip differential shaft / center conveying, conveying diameter 400-500mm; equipped with automatic roll change + labeling, connecting to subsequent processes.
Control System: PLC + touch screen, supporting parameter storage, one-click model change, fault warning; optional MES connection, enabling production data traceability.
IV. Key Performance Indicators
Slicing Precision: Width tolerance ±0.03-±0.05mm; Edge perpendicularity ≤0.05mm; Burrs ≤5μm (transverse ≤10μm).
Production Efficiency: Regular 50-80m/min; High-speed 80-150m/min; Narrow width (≤50mm) up to 200m/min.
Tension Fluctuation: ≤±2%; Correction Accuracy ±0.1mm; Yield ≥99.8%.
Compatible Specifications: Sheet thickness 50-200μm; Width 150-750mm; Slicing quantity 2-12 pieces.
Solution