Machine core of electric pencil sharpening machine

Abstract

The invention provides a machine core of an electric pencil sharpening machine, and belongs to the technical field of machinery. The problems that existing electric pencil sharpening machines are low in safety and prone to being mistakenly started when machine covers are taken down are solved. The machine core comprises a shell with the upper end open, a pencil holding frame arranged in the shell, a sharpening assembly located on one side of the pencil holding frame and a motor capable of controlling the sharpening assembly to work. The upper end of the shell is connected with a protection cover, a mounting cavity is formed in the protection cover, and a pencil inserting hole communicating with the mounting cavity is formed in the bottom of the protection cover. The pencil inserting hole right faces the pencil holding frame. A first microswitch is arranged in the position, close to the pencil inserting hole, in the mounting cavity, and the first microswitch can be triggered when a pencil is inserted into the pencil inserting hole. A protection hole and a connecting hole right facing the pencil inserting hole are formed in the upper end of the protection cover in a penetrating mode. A second microswitch is further fixed in the mounting cavity, and a trigger part of the second microswitch is opposite to the lower port of the protection hole. The machine core of the electric pencil sharpening machine has the advantages of being high in safety, capable of effectively preventing mistaken start, and the like.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to an electric pencil sharpener, in particular to a movement of the electric pencil sharpener. Background technique [0002] The electric pencil sharpener is a very common office stationery in the office or daily study life. Today, with the accelerating pace of life, people are increasingly pursuing convenience and efficiency. The electric pencil sharpener has the ability to automatically plan pencils. functions and are widely used by people. [0003] There are various types of existing electric pencil sharpeners, but the common structure generally includes a casing, which is equipped with a movement composed of a pen holder, a planing assembly and a motor that controls the work of the planing assembly. In order to facilitate the pouring of pencil powder, The upper end of the casing is connected to the machine cover. There is a control button on the cover, and a corresponding start ...

AI Technical Summary

Problems solved by technology

[0003] There are various types of existing electric pencil sharpeners, but the common structure generally includes a casing, which is equipped with a movement composed of a pen holder, a planing assembly and a motor that controls the work of the planing assembly. In order to facilitate the pouring of pencil powder, The upper end of the casing will be connected to the machine cover. There is a control button on the cover, and a corresponding start button on the movement. When the control button is pressed to make the control button press the start button, the motor will control the planing assembly to start working. This leads to safety problems in electric pencil sharpeners: when the user opens the cover to pour the pencil powder, the movement is exposed, and if the user accidentally touches the start button on the movement, the planing component will work. In this case, the work of planing components can easily hurt the user's hands

[0005] The above-mentioned safety mechanism for the electric pencil sharpener can only prevent accidental replacement of hands or other hard objects to prevent injury or damage to the electric pencil sharpener, but it cannot solve the problem when the cover of the electric pencil sharpener needs to be poured out and the pencil sharpener needs to be poured out. , the user accidentally touches the start button on the movement and starts the electric pencil sharpener by mistake.

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