Pencil feeding mechanism and pencil sharpener provided with pencil feeding mechanism

A pencil feeding mechanism, comprising a driving apparatus and a pencil clamping apparatus, wherein the driving apparatus is connected to the pencil clamping apparatus, and the driving apparatus is capable of driving the pencil clamping apparatus to work;

• the pencil clamping apparatus comprises a support, three pencil clamping roller assemblies are disposed on the support, and a triangular pencil clamping region capable of being inserted by a pencil is formed among the three pencil clamping roller assemblies, wherein one end of each of the pencil clamping roller assemblies is rotatably connected to the support, and an other end of the each of the pencil clamping roller assemblies is slidably connected to the support;
• and a clamping assembly is disposed between movable ends of the pencil clamping roller assemblies and the support, the clamping assembly comprises clamping pieces and a return elastic piece, the clamping pieces are movably connected to the support, each of the clamping pieces abuts against a movable end of a corresponding pencil clamping roller assembly in the three pencil clamping roller assemblies, and the return elastic piece is supported between the clamping pieces and the support.