Apparatus for making perforations in a packaging material and method of adjusting such an apparatus
AssigneePerfo Knowledgy BV
InventorMartijn Willem De Bruin
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Abstract
The invention relates to an apparatus (1) for making perforations in a packaging material, in particular a polymer film (2), comprising a conveyor for transporting the material (2) along a path through the apparatus (1), a laser device (7) with adjustable focal point, and an in-line optical detector (8) for measuring one or more parameters of the perforations made with the beam. The apparatus further comprises a controller (10) connected to the laser device (7) and the detector (8) and arranged to adjust the focal point of the laser device (7) based on the parameter(s).
Claims19
Apparatus for making perforations in a packaging material, in particular a polymer film, comprising:
- a conveyor for transporting the material along a path through the apparatus,
- a laser device with adjustable focal point, and
- an in-line optical detector for measuring one or more parameters of the perforations made with the beam,
- wherein a controller is connected to the laser device and the detector and the controller is arranged to adjust the focal point of the laser device based on the parameter(s).
Method of adjusting an apparatus for making perforations in a packaging material, in particular a polymer film, comprising the steps of
- making a plurality of perforations in the packaging material by means of the laser device,
- measuring one or more parameters of the perforations with the in-line detector, and
- adjusting the focal point of the laser device based on the parameter.
Dependencies are inferred from the claim text.