According to the use scene that students are convenient to switch between home and school, a portable full-automatic pencil sharpener is designed, which can be used anytime and anywhere, and can also be used as a spare when using several pens. Because the pencil sharpener needs to be easy to carry, the internal structure is compressed to the extreme and designed as a horizontal pencil sharpener, and the pen holder is also designed as a telescopic type, which is combined and carried when going out, and unfolded into a pen holder when used, which is very convenient.
Note: The project is dead, please give your opinions.