本发明揭示了一种回收废旧轮胎整胎破碎设备及其刀具机构,刀具机构包括动、定刀,动、定刀盘及设置在动刀盘上的动刀,动刀包括若干动刀块;定刀机构包括定刀盘及设置在定刀盘上的定刀;动刀块包括一凸块,凸块的一侧面为前刃口,前刃口与凸块远离动刀盘的一面所成角度为锐角。本发明提出的回收废旧轮胎整 The invention discloses a recycling device for crushing used tires and a cutter mechanism thereof. The cutter mechanism comprises a moving knife, a fixed knife knife and a fixed knife knife, and a movable knife arranged on the movable knife knife, wherein the movable knife comprises a plurality of movable knife blocks; The fixed blade mechanism comprises a fixed cutter and a fixed cutter which is arranged on the fixed cutter; the movable cutter comprises a protruding block, one side of the protruding block is a front cutting edge, the front cutting edge and the protruding block are away from the surface of the movable cutter Angle is acute. The present invention proposes the recycling of used tires