APPLICATION · FILM AND FOIL
EDGE POSITION REFERENCE
IN FILM AND FOIL LINES
In film and foil lines, everything starts with where the two edges will sit. Reel width and cut width change from recipe to recipe, so the edge position has to be re-established at every changeover. ServoMotion moves the two edge lines to the targets read from the recipe, and the positions stay visible while the line runs.
FROM THE FIELD
Application Images
ON THE LINE
DO THESE
SOUND FAMILIAR?
When the reel width changes, the edge position is measured from scratch, making setup the longest item in the changeover.
On a thin, glossy surface, where the edge actually ends depends on the viewing angle. The same recipe is set up differently across shifts, resulting in inconsistent output.
Running with a safety margin adds a little scrap to every metre, and that adds up to a meaningful figure by the end of the year.
Fixed guides shift position with vibration and need periodic readjustment.
WHAT WE MEASURE ON SITE
PARAMETERS THAT
DEFINE THE SYSTEM
The parameters below drive the design decisions in this segment. We measure these values on your line and base the quotation on that data.
| Reel width range | The difference between the narrowest and widest recipe determines travel range and housing length. |
|---|---|
| Edge tolerance | The accepted deviation; line thickness and working distance are selected accordingly. |
| Material surface | Transparent, matte or metallised surfaces affect laser colour and optical power. |
| Working distance | The vertical distance between the laser and the material determines angular tolerance. |
| Line speed | Determines how quickly a position change has to complete. |
| Support structure | An existing traverse or a new frame. |
SYSTEM SELECTION
WHICH ARCHITECTURE
FOR THIS SEGMENT?
MOST APPLICATIONS
CORE PRECISOR
In film and foil lines, the number of simultaneous reference lines is usually limited to the two edges. An enclosed industrial profile drives to the target positions under servo control, while fixed references keep the control points beyond the edges continuously visible.
Explore Core Precisor →IF THE NUMBER OF PROJECTED LASER LINES GROWS
SHUTTLE PRECISOR
If many slit references have to be visible at once, the shuttle architecture takes over. The decision is based on the densest recipe in your portfolio.
Explore Shuttle Precisor →EXAMPLE INSTALLATION
CORE PRECISOR · K3 · 2,000 MM TRAVEL
One moving channel and two fixed references. The moving channel travels to the edge position defined in the recipe, while the fixed lines keep the control points visible throughout production. These figures come from one example installation; the dimensions for your line are determined during the site survey.
RELATED ARTICLES
WHAT WE HAVE
WRITTEN ON THIS
APPLICATION NOTE
REQUEST THE
APPLICATION NOTE
The application note is shared as a PDF on request.
LET'S ASSESS YOUR LINE TOGETHER
Share your reel width range and mounting structure, and we will define the system configuration and housing dimensions together.