Improvements in or relating to cutting machines

摘要

Described herein is a mounting arrangement (400) for a fixed cutting blade (100) of a cutting machine (450) that allows rapid replacement of the cutting blade (100) without having to remove a support member (200) for the cutting blade (100) from the cutting machine (450). At each mounting point of the cutting blade (100), a shaped nut (300) is located within the support member (200) prior to the support member (200) being mounted on the cutting machine (450). Each shaped nut (300) has an eccentric flange that engages within a complementary recess formed in the support member (200), the nut being retained within the complementary recess by means of a circlip (410). A screw or bolt (420) engages with the nut (300) to mount the cutting blade (100) on the support member (200), and, as the screw or bolt (420) is tightened, the cutting blade (100) is precisely aligned with respect to x- and y-axes within the support member (200).