Automatic Sharpening Device for Root Vegetable Shredder Knives
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Solution Overview
Problem
Conventional devices for sharpening shredding knives used in earth fruit shredding machines require significant manual effort and are prone to errors due to the need for precise positioning and depth control during the sharpening process.
Innovation Solution
A device with a centering unit and processing unit, both motor-adjustable, that uses a disk milling cutter and a pair of tongs to position and sharpen the knives automatically, with electronic sensors and a controller to ensure precise alignment and milling depth, reducing manual effort and errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If manual operation is used for positioning and sharpening, then device complexity is reduced, but manufacturing precision and reliability deteriorate due to positioning errors and depth control issues
Solution Approach 1:
The patent replaces manual mechanical positioning with an electronic control system that uses sensors to detect the position of cutting elements and automatically adjusts the milling cutter depth and horizontal position. This substitution of mechanical manual operation with electronic control and sensing systems resolves the contradiction by achieving high positioning precision through automated feedback control while managing device complexity through integrated control architecture.
Solution Approach 2:
The system performs self-positioning and self-adjustment through electronic sensors that automatically detect cutting element locations and control the milling cutter's movement and depth. The device serves itself by using sensors to guide the sharpening process without requiring manual intervention for positioning, thereby achieving high precision while reducing the need for complex manual positioning mechanisms.
2Productivity
If manual operation is used for sharpening, then device complexity is reduced, but productivity deteriorates due to time-consuming manual processes
Solution Approach 1:
The patent implements continuous automated sharpening by mechanically moving the milling cutter through all cutting elements in sequence without manual intervention. The electronic control system continuously monitors and adjusts the process, enabling uninterrupted sharpening operations that significantly increase productivity compared to manual methods while managing complexity through automated sequencing and control.
Solution Approach 2:
The system uses dynamic mechanical movement of the milling cutter combined with electronic control to automatically position and sharpen multiple cutting elements in rapid succession. The dynamic positioning and movement capabilities enable high-speed automated operation, improving productivity while the integrated control system manages the complexity of coordinating these dynamic movements.
3Manufacturing precision
If precise manual positioning is attempted, then manufacturing precision may improve, but ease of operation deteriorates due to difficult positioning and depth control
Solution Approach 1:
The patent replaces difficult manual positioning and depth control with electronic sensing and automated control systems. Sensors automatically detect cutting element positions and the control system manages milling cutter depth and movement, achieving high precision while making operation simple and intuitive through automated feedback control rather than requiring skilled manual positioning.
Solution Approach 2:
The system uses electronic sensors to provide real-time feedback on cutting element positions and milling cutter depth, automatically adjusting parameters to maintain precise sharpening. This feedback control mechanism achieves high manufacturing precision while simplifying operation, as the system self-corrects positioning and depth control based on sensor input rather than requiring manual adjustment.
Data Source
Figure 1A~1C
Figure 2A~2B
Figure 2C~2D
AI summary
The invention describes a device for sharpening cutting knives (1) for root vegetable shredding machines with roof-shaped cutting elements formed on a knife body (9), consisting of a centering unit (4) adjustable in the direction of a Y-axis (3) and a processing unit (5) with a disc cutter (6) and a clamp (8) which fixes the knife body (9) and is adjustable in an X-direction (2), wherein in a starting position the centering unit (4) and the processing unit (5) are moved away from each other and the clamp (8) with the cutting knife (1) is adjusted in the X-direction (2), in which a cutting element is aligned with the disc cutter (6), in a working position the centering unit (4) with a centering piece (12) is placed on the back of the cutting element and the disc cutter (6) engages in the cutting element and during the milling process the components are moved to the starting position by a milling dimension in the Y-direction (3).