Method and apparatus for cutting sheet material with...

Details Method and apparatus for cutting sheet material with... Method and apparatus for cutting sheet material with...

B - Operations, Transporting

26

D

164/108, 342/6.1

B26D 1/60 (2006.01) B26D 5/00 (2006.01) B26F 1/38 (2006.01) G05B 19/12 (2006.01) G05B 19/18 (2006.01)

Patent

CA 1147439

METHOD AND APPARATUS FOR CUTTING SHEET MATERIAL WITH PREPROCESSED DATA ABSTRACT OF THE DISCLOSURE A method and apparatus for cutting multi-ply layups of limp sheet material employs an automatically controlled machine with a knife blade and a controller for guiding the blade along cutting paths defined by a marker of pattern pieces. The marker contains a plurality of pattern pieces in a closely packed array which causes the pattern pieces and segments of the cutting paths to be in contact or in close proximity to one another, and makes accurate cutting difficult or impossible. Digitized data defining a cutting program for the marker is pre- processed in a data processor to identify critical segments of cutting paths where cutting difficulties may arise and introduces into the data remedial command signals that guide the cutting blade past the identified critical segments for more accurate cutting. -1-

359117

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