MULTI-SECTION EXPANSION CUTTER

The utility model relates to a multi-section expansion cutter, comprising a cutter body, a blade, a revolving plate, a slide block and a tail cover. The cutter body is a hollow sliver body, wherein, the front end is the outlet of the blade and the tail end is provided with the tail cover; the blade is dismountable and replaceable; the upper part is provided with a sliver slotted hole; the slotted hole is provided with a plurality of locating slots; the blade is buckled to the slide block and arranged on the slide rail of the cutter body; the upper end of the slide block is buckled with the revolving plate; the revolving plate is arranged in the sliver slotted hole of the cutter body. When the revolving plate is pushed, the revolving plate on the sliver slotted hole can do straight-line or rotation displacement so as to push the slide block to drive the blade to generate telescopic actions with various length. Moreover, two flaunchings on the revolving plate, after the displacement, are screwed off and clamped into the locating slot of the sliver slotted hole, so the unnecessary telescopic actions can be avoided when the cutter is used.