TGV unit

Two-way traction to meet the needs of various occasions

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TGV unit (integrated unit of tension correction guide frame vacuum roller traction)

Application Description:

It is suitable for the entrance and exit of the coating machine oven; the traction of the 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.) under high-precision tension control requirements Power roller.
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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.


 








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