公开(公告)号：US20180200909A1

公开(公告)日：2018-07-19

申请号：US15872311

申请日：2018-01-16

Applicant: BUTECH, INC.

Inventor： John R. Buta ,  Jason Cuff ,  Jason Gustwiller

IPC: B26D7/20

CPC classification number: B26D7/20 ,  B23D19/06 ,  B23D31/04 ,  B26D1/245 ,  B26D2007/202

Abstract: A slitting machine for threading scrap material has first and second arbors. A first set of rotary knives are disposed on each of the first and second arbors having a first diameter. A second set of rotary knives are disposed on each of the first and second arbors having a second diameter. The second diameter is smaller than the first diameter. As the arbor gap is closed, the first set of rotary knives cut edge trim and when the arbor gap is further closed, the second set of rotary knives cut mutts from the strip.