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Vacuum traction roller
Application Description:
It is suitable for traction power rollers under high-precision tension control requirements of strip film (such as lithium battery diaphragm, lithium battery positive and negative electrodes, copper foil, aluminum foil, tape, protective film, hardened film, automobile explosion-proof film, etc.).
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- Product description
- Performance parameter
- Installation drawings
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Purpose
It is suitable for traction power rollers under high-precision tension control requirements of strip film (such as lithium battery diaphragm, lithium battery positive and negative electrodes, copper foil, aluminum foil, tape, protective film, hardened film, automobile explosion-proof film, etc.).
Main advantage
● The tension is flexible before and after traction, and the isolation value can be adjusted by the negative pressure value;● The material does not need to be squeezed by the pressing roller to generate great traction;
● Realize the single-sided contact of the rubber material, effectively avoiding the damage of the rubber surface;
● Stabilize the position of the material to avoid the side slip of the material on the traction roller;
● Coupling the traction force with the tension difference, and the output tension can be zero;
● It can be hauled in both directions to meet the needs of special occasions;
Theoretical analysis
Patm-atmospheric pressure Pavc-negative air pressure
1. Drive support shaft: the reaction force support and air extraction function of the roller surface traction and rotation;
2. The traction is used for the roller surface;
3. The input tension is large, the output tension is small, and the torque traction is realized
4. Torque realization principle:
T=(Patm- Pvac) *S *f*R*K
(S) Roller surface area in vacuum zone (f) Coefficient of friction between the material and the roller surface
(R) Roller surface radius (K) Correction factor
| Main index |
| Surface finish of roller body:0.2-0.4um |
| Roll surface treatment: electroless plating/fine grinding/steel mesh/fiber sheath |
| Tension isolation density:0.1-0.3kgf/cm |
| Evacuation air volume:≤11.3cmm（The specific air volume is selected according to actual requirements） |
| Rated negative pressure:≤9-15KPa |
| Adapt to the line speed:≤550mpm |
| Roll surface:10-60℃ |
Roll surface specifications and treatment methods
| Roll surface treatment | Roller diameter (unit mm) | ||||||
| 160 | 200 | 204 | 260 | 318 | 324 | 420 | |
| Chrome plated fine grinding | ● | ● | ● | ● | ● | ● | ● |
| Stainless steel mesh | ● | ● | ● | ● | ● | ● | ● |
| High precision optical network | ● | ● | ● | ||||
| Fiber sheath | ● | ● | ● | ● | ● | ● | ● |
Partial application
[Coating machine] General optical film, optical tape, automotive film and other high-precision coating production lines.
Advantages:
1. After the material is glued, only the non-adhesive surface touches the roller to protect the rubber surface from damage;
2. Decoupling of tension and traction leads to achieve low tension or zero tension;
3. The traction is still effective when the material is worn for the first time or when the material is broken, and it is convenient to wear the material;
4. Other advantages are waiting for you to discover.
Manual.pdf
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Engineering Applications
