How does an automatic winder change work on a turret winder?
On a turret winder following a film extrusion line, in our case the film is cut lengthwise onto several panels and wound up. When the reel is full, an automatic reel change takes place. During a winding change, the film must continue to run continuously and the next film winding must be started cleanly and without creases.
Why does a plastic film telescope during winding?
Especially during the winder change, the film may run, this is called telescoping. There are several reasons for this, such as uneven web tensions, high web speeds, guide rolls that are not aligned parallel, or electrostatic repulsion effects. Especially with thin and smooth films, these effects are intensified. In our case, several blanks are wound on one reel.
By means of a non-contact charging bar, the film is charged in a targeted manner so that attraction effects of each individual film layer are created on the winding.
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Which Eltex components are used?
The following Eltex products have been installed and tested on site by our experts. If you would like to learn more or have any questions, please do not hesitate to contact us.