US 12,030,735 B2
Adjustable field of view laser system for web processing
Joel Oakes, Princeton, MN (US); and Evan Schiebout, Oak Grove, MN (US)
Assigned to Delta Industrial Services, Inc., Minneapolis, MN (US)
Filed by Delta Industrial Services, Inc., Ramsey, MN (US)
Filed on Oct. 30, 2020, as Appl. No. 16/949,505.
Prior Publication US 2022/0135358 A1, May 5, 2022
Int. Cl. B65H 19/20 (2006.01); B23K 26/06 (2014.01); B23K 26/08 (2014.01); B65H 19/10 (2006.01); B65H 19/18 (2006.01); B65H 19/22 (2006.01); B65H 19/26 (2006.01)
CPC B65H 19/20 (2013.01) [B23K 26/06 (2013.01); B23K 26/0846 (2013.01); B23K 26/0876 (2013.01); B65H 19/105 (2013.01); B65H 19/1884 (2013.01); B65H 19/2207 (2013.01); B65H 19/26 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An apparatus comprising:
multiple processing stations, each station configured to process a moving web of material along a web path;
a laser assembly configured to process the moving web of material with a laser at a first station of the multiple processing stations, the laser assembly comprising:
a laser configured to generate a laser beam;
a gimble assembly configured to direct the laser beam along a cut path at a position of a web path of the moving web of material;
a servo-driven mirror assembly configured to provide an adjustable field of view for the laser assembly at the position of the web path; and
a servo-driven focus assembly configured to move focusing optics along an axis defined by the laser beam to adjust a focus of the laser beam in response to a change in the adjustable field of view,
wherein the servo-driven focus assembly includes a servo motor, a lead screw configured to be rotated by the servo motor, and a focus carriage in which the focusing optics are mounted, wherein the apparatus is configured to move the focus carriage along the axis defined by the laser beam when the lead screw rotates.