Improved three-gear universal automatic pencil feeding device for adjusting large and small pencils of pencil sharpener
By designing a three-speed adjustment device in the pen cutting machine and controlling the spacing of the pen feeding eraser with a spring, the problem that traditional pen cutting machines cannot cut pencils of different outer diameters is solved, achieving wider applicability and practicality.
CN222628996UActive Publication Date: 2025-03-18虞海强
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Patent Information
- Application Number
- CN202421317860.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-06-11
AI Technical Summary
Technical Problem
Traditional pencil sharpeners cannot effectively cut pencils of different outer diameters, resulting in pencils that are too large or too small are not suitable.
Method used
A general automatic pen feeding device for improved three-speed adjusting pen with pen with pen cutting machine is designed. The three-speed gears are set through the adjustment button, and the spacing of the pen feeding eraser wheel is controlled by straight and pagoda springs, which is suitable for pencil cutting with different outer diameters.
Benefits of technology
It realizes cutting adaptability to various outer diameter pencils, expands the scope of application, and improves practicality.
✦ Generated by Eureka AI based on patent content.
Abstract
The utility model discloses an improved three-gear universal automatic pencil feeding device for adjusting large and small pencils of a pencil sharpener, which comprises a fixed frame, an adjusting knob, a movable frame, a pencil feeding shaft, a pencil feeding rubber wheel, a transmission rubber roller, a roller inner sleeve, a rotating disc, a pagoda-shaped spring and a straight spring, the movable frames are connected through straight springs, the outer ends of the movable frames are connected with adjusting knobs in a screwed mode, the adjusting knobs are arranged on the front side of the shell, rotating discs are arranged on the movable frames through pagoda-shaped springs, two pen feeding shafts are oppositely arranged on the rotating discs side by side, and the two ends of the pen feeding shafts are inserted into inserting holes and clamping openings in the ends of the movable frames. A pen feeding rubber wheel is arranged in the center of the pen feeding shaft, a transmission rubber roller is arranged on one side of the pen feeding rubber wheel through a roller inner sleeve, and a rotating handle with a cutter set is arranged on the other side of the movable frame and penetrates through the shell. The pencil sharpener utilizes a three-gear adjusting mode, is suitable for sharpening pencils with outer diameters in more ranges, and is wide in application range and high in practicability.
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