February 07, 2022
For the user who operate VFFS machine, adjusting “film deviation” may be troublesome and time-consuming. When setting film roll on VFFS machine, “Film roll position” and “Stabilization of film path in the machine” are the key points, however, film deviation may occur even those key points are addressed.
Film deviation is a phenomenon that film is misaligned to one side (left or right) before being transferred to the forming section which makes the long seal position be shifted and heavily effects on the sealing quality and package appearance.
Upon the machine operation is suspended to correct film misalignment, additional time is required to adjust the film roll position or the film path and also the film is consumed. This results in wasted time and increased film cost.
TWJB has a solution for preventing this.
Our Film deviation adjust function can be activate during operation while producing empty bag by moving the tangent roller which is equipped with motor, and adjusting the tangent roller itself from left to right so as to make fine adjustment of the film roll position.
This can significantly reduce the burden of adjustments that would otherwise be time-consuming and costly.
This film deviation adjust function is equipped as TWJB standard specification to allow the entire user can use this function without any additional cost.
| Machine specification | TWJB(3) | TWJB(8) |
|---|---|---|
| Bag size range | Bag width 50 mm- 220 mm Bag length 50 mm – 300 mm | Bag width 100 mm- 300 mm Bag length 50 mm – 410 mm |
| Packing speed | Max. 100 bpm | Max. 100 bpm |
| Machine dimensions | W 1121 mm, D 1939 mm, H 1413 mm | W 1426 mm, D 1944 mm, H 1673 mm |
| Machine weight | 620kg | 730kg |
Automatic Film deviation adjust function in TWFX
The latest model TWFX is equipped with automatic film deviation adjustment system that the film edge observation is always on. When film deviation is detected, the sub-frame unit itself automatically adjusts the position to the target value. As the sub-frame moves just behind the forming unit, the time for adjusting the film deviation has been reduced in comparison to the previous model.
| Machine specification | TWFX(3) | TWFX(8) |
|---|---|---|
| Bag size range | Bag width 50 mm – 200 mm Bag length 50 mm – 300 mm | Bag width 50 mm – 250 mm Bag length 50 mm – 360 mm |
| Packing speed | Max. 120 bpm | Max. 100 bpm |
| Machine dimensions | W 979 mm, D 1751 mm, H 1420 mm | W 1120 mm, D 1773 mm, H 1890 mm |
| Machine weight | 800 kg | 880 kg |
tam Contact to: tam-overseas@tam-tokyo.co.jp