Patent ID: 9669651
Date: 2017-06-06
CPC Classifications: B43L

Claim:
1. A fully-automatic pencil sharpener, comprising: a pencil-pushing module adapted to push a pencil to a preset position, and pushing a pencil to a preset position comprises pushing the pencil to a pencil-sharpening module when the pencil is placed in the pencil sharpener, and pushing the pencil out of the fully-automatic pencil sharpener when the pencil has been sharpened; the pencil-sharpening module adapted to sharpen the pencil; a power module adapted to provide power for the fully-automatic pencil sharpener; a detection module adapted to detect a position of the pencil and a sharpening status of the pencil, and send a detection result to a control module; the control module adapted to control the power module according to the detection result; and a housing adapted to support the fully-automatic pencil sharpener; and wherein the control module comprises a single-chip microcomputer, a first relay and a second relay; the single-chip microcomputer is adapted to control a motor according to detection results; the first relay is connected to the single-chip microcomputer and the motor, and is adapted to control the motor to rotate forwardly according to an instruction from the single-chip microcomputer; and the second relay is connected to the single-chip microcomputer and the motor, and is adapted to control the motor to rotate reversely according to an instruction from the single-chip microcomputer.