| 摘要 |
A machine ( 100 ) for slitting a metal sheet has a number of knife assemblies ( 112 ) each containing a rotary knife ( 110 ). The knife assemblies ( 112 ) are mounted for movement along upper and lower arbors ( 104, 106 ) which rotate the knives ( 110 ) during a slitting operation. Upper and lower knife assembly positioning devices ( 114 ) are operable to releasably grasp the knife assemblies ( 112 ) for movement of the knife assemblies ( 112 ) to predetermined positions along the upper and lower arbors ( 104, 106 ).
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