Pencil-sharpening machine with adjustable taper

Abstract

The invention belongs to the technical field of stationery commodities, and relates to a pencil-sharpening machine with an adjustable taper. A hand-cranking handle is cranked to drive an oscillating bar to oscillate; a translation sliding chute on the oscillating bar drives a translation assembly through a translation sliding pin to carry out translation in a reciprocating way along a linear guideway so as to drive five blades on a knife rest to sequentially sharpen a fixed pencil; and when the translation assembly moves toward an opposite direction until a journey is about to finish, a pawl tip is inserted into a tooth socket of a ratchet wheel and drives the ratchet wheel to anticlockwise rotate at a certain angel, and the hand-cranking handle is continuously cranked to alternatively sharpen and rotate the pencil. The pencil-sharpening machine with the adjustable taper provided by the invention is used for semi-automatically finishing pencil sharpening, the sharpening taper of the pencil can be conveniently adjusted, the sharpening surface size is uniform, the appearance is attractive, the pencil-sharpening machine is convenient to install and adjust, low in use cost, high in treatment efficiency, safe, clean and sanitary, nearsightedness is effectively avoided, and a lot of time of students is saved.

Description

technical field [0001] The invention belongs to the technical field of stationery, and relates to a semi-automatic pencil sharpening device, in particular to a pencil sharpening machine with adjustable taper. Background technique [0002] In the early days, students used a pencil sharpener to sharpen pencils by hand. This work was often done during breaks, holding a pencil in one hand and a pencil sharpener in the other. While sharpening, slowly rotate the pencil so that this end becomes approximately conical and exposes the lead. , and then scrape the lead into an approximate conical shape. [0003] This method has the lowest work efficiency and takes the longest time. It is also easy to break the lead when scraping the lead. If it is broken, it needs to be re-cut, which is a waste of time. In addition, it is easy to get dirty hands, so that the pencil dust sticks to the hands. Some elementary school students have a bad habit of sucking their fingers, and they will suck th...

AI Technical Summary

Problems solved by technology

But in order to cope with the use of pencils in the next class, you need to sharpen the pencil yourself. The process of sharpening the pencil is also looking at nearby things, which will also cause visual fatigue. Although the brain can rest for a while without using the brain, the eyes are still in a state of fatigue. exacerbation of nearsightedness

[0007] But so far no one has developed a device that can automatically sharpen pencils efficiently and completely liberate primary school students from self-help pencil sharpening

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