The slitting accuracy is up to 0.1mm! How does the ribbon slitting machine ensure the print quality?

The ribbon slitting machine achieves 0.1mm high-precision slitting and ensures print quality, mainly relying on precision mechanical design, intelligent control system and strict process management. Here are the key techniques and measures:

1. High-precision mechanical structure

• Precision slitting knife system

Cemented carbide or diamond tools are used with a highly rigid spindle to ensure a flat and burr-free cutting edge. The dynamic balance design reduces vibration and avoids material deformation during slitting.

• Tension control system

Closed-loop tension control (e.g., magnetic powder brake + sensor) keeps the ribbon tension constant (typically ± 0.1N) during slitting and prevents material stretching or wrinkling.

• Guiding Device (EPC)

Infrared or ultrasonic sensors monitor the edge position of the ribbon in real time and automatically adjust the lateral offset of the coil (accuracy ± 0.05mm) to ensure the straightness of the slitting.

2. Intelligent control technology

• Servo drive system

High-resolution encoder (such as above 17 bits) with servo motor to control the slitting length error ≤± 0.05mm.

• Visual inspection system

The industrial camera detects the slitting width (such as CCD measurement) online, adjusts the tool position with real-time feedback, and adapts to different specifications (such as 6mm, 12mm, etc.) narrow ribbons.

• Temperature management

Constant temperature control in the slitting area (±1°C) reduces the influence of thermal expansion and contraction on material size.

3. Material and process optimization

• Ribbon substrate treatment

Static elimination (such as ion air rods) is carried out before slitting to prevent the film from absorbing dust; The coated ribbon needs to control the slitting speed (usually 20-50m/min) to avoid coating peeling.

• Dust-free environment

Clean workshops (ISO Class 8 and above) reduce particle contamination and avoid white spots or broken wires during printing.

• Optimization of cutting edge angle parameters

The tool angle is typically 20°-30°, adjusting the pressure according to the ribbon thickness (commonly 4.5-12μm) to ensure a smooth section.

4. Quality verification system

• Online testing

The laser diameter meter monitors the slitting width in real time and automatically alarms for over-deviation. Sampling for 3D microscopy of edge burrs (≤ 5 μm required).

• Print test

After slitting, the ribbon needs to be verified by a high-speed printer (such as 300mm/s) to ensure that there is no blurring or skipping (resolution ≥ 300dpi).

• Industry standard compliance

Compliant with ASTM F1628 (ribbon adhesion test) and ISO 9001 quality management system.

Practical application cases

An industrial-grade ribbon slitting machine uses a linear guide rail (repeat positioning accuracy ±0.005mm) + laser tool setting system to control the slitting tolerance within ±0.03mm, so that the PCS value (printing contrast) of the printed barcode can be stable to A level (≥0.9).

Through the integration of these technologies, the 0.1mm slitting accuracy not only meets the printing needs of high-density barcodes (such as QR Codes) but also reduces ribbon waste (slitting waste rate <0.5%).