Applications

Suitable for traction power rollers with high-precision tension control requirements for sheet and strip films (such as lithium battery separators, lithium battery positive and negative electrodes, copper foil, aluminum foil, tapes, protective films, hardening films, automotive explosion-proof films, etc.).

Key Advantages:

● Flexible tension isolation before and after traction; the isolation value can be adjusted by the negative pressure value.
● High traction force can be generated without the material being squeezed by the pressure rollers.
● Achieves single-sided contact of the adhesive material, effectively avoiding damage to the adhesive surface.
● Stabilizes the material position, preventing material slippage on the traction rollers.
● Flexible tension isolation before and after traction; the isolation value can be adjusted by the negative pressure value.
● Can perform bidirectional traction, meeting the needs of special applications.

Theoretical Analysis

Patm - Atmospheric pressure Pavc - Negative air pressure
1. Drive support shaft: Provides support and vacuum function for the reaction force of the roller surface traction rotation;
2. Traction force is applied to the roller surface;
3. Larger input tension, smaller output tension, achieving torque traction
4. Torque realization principle:
T=(Patm- Pvac) *S *f*R*K
(S) Roller surface area in the vacuum zone (f) Coefficient of friction between material and roller surface (R) Roller surface radius (K) Correction coefficient