electric pencil sharpener

Abstract

The invention discloses an electric pencil sharpener which comprises a body, a motor, a transmission assembly, a cutting assembly and a tool rest and further comprises a circuit control device, a broken refill ejecting device and a pencil-shaped article rotation preventing device. The circuit control device comprises a first switch assembly and a second switch assembly. The motor, the first switch assembly and the second switch assembly are connected in series through wires. The first switch assembly is installed at a stretching-in opening of a pencil-shaped article, the second switch assembly is installed above the motor, and the broken refill ejecting device is installed above the second switch assembly. The pencil-shaped rotation preventing device is arranged at the stretching-in opening of the pencil-shaped article. The pencil-shaped rotation preventing device controls switching-on and switching-off of the first switch assembly. The two switch assemblies are arranged, when the sharpness reaches a certain standard, the second switch assembly is switched off, and sharpening is stopped. The broken refill ejecting device is arranged in the body, the lever principle is adopted, and a refill can be easily taken out when falling into the tool rest. The electric pencil sharpener further has the advantage that rotation of the pencil-shaped article in the sharpening process is prevented, and the electric pencil sharpener belongs to the technical field of sharpening devices.

Description

technical field [0001] The invention relates to a planing device, in particular to an electric pencil sharpener with a power-off stop function for sharpening the end of a pen. Background technique [0002] When sharpening pen-like objects such as pencils, the existing common electric pencil sharpener often only judges whether to sharpen according to the user's feeling, which may easily cause the sharpness of the pen-like objects to be planed insufficiently or excessively. In the former case, if the sharpness of the planing is not enough, it is necessary to place the pen in the planer again to continue planing, which consumes time and energy virtually; while in the latter, the pen is planed too much, which may easily cause the refill to break or increase its consumables. In addition, when the existing electric pencil sharpeners are sharpened, the thickness of pen-like objects such as pencils cannot be adjusted, and the thickness is often judged by the user's feeling; The kni...

AI Technical Summary

Problems solved by technology

[0002] When sharpening pen-like objects such as pencils, the existing common electric pencil sharpener often only judges whether to sharpen according to the user's feeling, which may easily cause insufficient or excessive planing of the pen-like object The sharpness of the former is not enough for planing, and the pen-like object needs to be placed in the planer knife again to continue planing, which consumes time and energy virtually; while the latter pen-like object is planed too much, which may easily cause the refill to break or increase its consumables.

In addition, when the existing electric pencil sharpeners are sharpened, the thickness of pen-like objects such as pencils cannot be adjusted, and the thickness is often judged by the user's feeling; The knife holder is stuck by the blade, and it is generally difficult to remove the broken core. Only by hitting the sharpener hard, but this is easy to damage the sharpener

When an electric pencil sharpener sharpens a pen-like object such as a pencil, it often needs to be pinched by the user to prevent the pencil from slipping and cannot be sharpened.

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