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AssigneeWinkler & Dunnebier Maschinenfabrik und Eisengiesserei KG
InventorsKurt Stemmler, Peter Langenbeck, Gunter Ehlscheid
Estimating the term…
A desired pattern to be cut from a moving web of material by a focused laser beam is traced by eccentrically mounting the focal lens 3 in a rotatable carrier 4. The lens may also be radially displaceable (FIG. 3), inclined and rotatable (FIG. 4), doubly rotatable (FIG. 5), and/or the carrier 4 may be linearly displaceable (FIG. 6). By suitably and simultaneously controlling the various motion parameters, whose resultants are superimposed on one another, any desired cutting pattern can be traced. The movements are primarily uni-directional rather than oscillatory, which greatly simplifies the implementing hardware, and since all of the laser beam reflecting mirrors involved are fixedly mounted and move only in planes parallel to the web, the laser beam focal length always remains constant.
An apparatus for focal form cutting of a two-dimensional pattern on a moving web of material by means of a laser beam, wherein the focal lens of the laser beam is moved only in a plane parallel to the web in a circular path with further components of movement being superimposed thereon, and wherein all components of movement are variable in speed and controlled independently of one another, said apparatus including:
An apparatus for focal form cutting of a two-dimensional pattern on a moving web of material by means of a laser beam, wherein the focal lens of the laser beam is moved only in a plane parallel to the web in a circular path with further components of movement being superimposed thereon, and wherein all components of movement are variable in speed and controlled independently of one another, said apparatus including:
Dependencies are inferred from the claim text.