Introduction of pencil sharpener
Pencil sharpeners, pencil sharpeners (or crayons) tools products include train-shaped, kitten-shaped, house, and many other novel exterior designs. The colors are rich and colorful: red, yellow, blue, pink, etc. It is must-have stationery for elementary school students. The pencil sharpener has two styles of single-hole and double-hole designs. The sharp knife can be used to sharpen pencils, eyebrow pencils, lipstick pens, etc. The pencil sharpener is also called a pencil sharpener (pencil sharpener or pencil parer), or a pencil sharpener, which is a tool for sharpening pencils. There are electric and manual pen sharpeners. Manual pencil sharpeners are divided into hand-cranked and non-hand-cranked ones. Before the pen planer was invented, people used a knife to plan pens. There is usually a blade of about 2.5 cm in the pen planer. The user inserts the tip of the pencil into the hole of the sharpener and turns the pencil or sharpener.
The historical origin of the pencil sharpener
Everyone must be familiar with a pencil sharpener. It is a tool for sharpening pencils. In the 17th century, people just used knives to sharpen pencils. With the progress of society, by the beginning of the 19th century, people not only needed to use more pencils but also had higher requirements for the time it takes to sharpen pencils. The mechanical pencil sharpener was born in this environment. The world’s first pencil sharpener was invented by a Frenchman in 1828. In the following centuries, the pencil sharpener gradually developed into what people are familiar with.