Abstract: A fully-automatic pencil sharpener is provided according to embodiments of the present application, which may avoid the problem of the pencil being overly sharpened in the conventional electric pencil sharpener, and realize a maximized utilization of the length of the pencil, thus is more economical and environmental friendly compared to the conventional electric pencil sharpener. The fully-automatic pencil sharpener according to embodiments of the present application includes a pencil-pushing module, a pencil-sharpening module, a power module, a detection module, a control module and a housing. The pencil-pushing module is adapted to push a pencil to a preset position, for example pushing the pencil to the 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.

Abstract: A fully-automatic pencil sharpener is provided according to embodiments of the present application, which may avoid the problem of the pencil being overly sharpened in the conventional electric pencil sharpener, and realize a maximized utilization of the length of the pencil, thus is more economical and environmental friendly compared to the conventional electric pencil sharpener. The fully-automatic pencil sharpener according to embodiments of the present application includes a pencil-pushing module, a pencil-sharpening module, a power module, a detection module, a control module and a housing. The pencil-pushing module is adapted to push a pencil to a preset position, for example pushing the pencil to the 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.

Abstract: An embodiment of the present application provides a staple-ejecting type stapler, which can use an energy storing and energy releasing assembly to store energy by means of the lever principle and to generate an elastic force by releasing the elastic potential energy. Under the action of the elastic force, a staple driver pushes a staple to pierce through paper, and legs of the staple are bent by an anvil plate, thereby realizing the binding function in a convenient and labor-saving manner.