The utility model discloses a pencil sharpener, and one-way rotation of the user can realize automatic pencil
sharpening. The power of the
handle is divided, one way is through the pencil holder drive
system to make the pencil holder descend at a
constant speed, and the pencil is inserted into the
cutting mold; the other way is through the cutter drive
system to drive the blade to reciprocatingly
cut along the guide slope. When the pencil holder descends to the predetermined position, the
volute spring triggers the reset, the pencil holder is lifted, and the
cutting mold rotates 90 DEG to switch the
cutting surface. The pencil sharpener precisely matches the cutting amount through the lead screw lead and the
handle circle number, realizes automatic reset and surface switching through the transmission mechanism, and does not need manual intervention. It can precisely
cut out specific shapes such as flat head
eyebrow pencils, is simple and easy to operate, avoids pencil dust splashing and blade injury through the anti-overflow cover design, and has high efficiency and safety.