Leather Skiving Machine Flat Blade Oscillation
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Solution Overview
Problem
Conventional leather skiving machines are bulky, heavy, and complex, making them unsuitable for home use, and existing band-shaped machines are difficult to operate and limited in their ability to handle both hard and soft leathers, as well as wider leathers.
Innovation Solution
A compact, lightweight leather skiving machine with a flat blade that oscillates and is driven by an independent mechanism, sandwiched by a roller and presser foot, allowing for easy operation and uniform cutting of leathers of varying thickness and hardness, without the need for a grindstone for sharpening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cylindrical round blade with a polishing mechanism is used, then the blade can be sharpened repeatedly, but the machine becomes heavy, complex, and requires large workspace
Solution Approach 1:
The invention extracts and removes the grindstone polishing mechanism from the leather skiving machine, replacing it with a disposable or replaceable blade system. This eliminates the complex sharpening mechanism while maintaining blade reusability through simple blade replacement rather than in-machine sharpening.
Solution Approach 2:
The invention adopts a disposable or easily replaceable blade design instead of a permanent sharpenable blade. The blade can be replaced when dull without requiring a polishing mechanism, simplifying the overall machine structure while maintaining operational reliability.
2Weight of moving object
If a flat blade is moved manually by a lever, then the machine is lighter, but the operation becomes complicated and difficult
Solution Approach 1:
The invention replaces the manual lever mechanism with a motor-driven system that automatically moves and oscillates the flat blade. This substitution eliminates the need for the user to manually operate a lever, significantly improving ease of operation while maintaining the lightweight advantage of using a flat blade instead of a cylindrical blade with polishing mechanism.
3Device complexity
If a flat blade moves in a certain direction only, then the machine is simple, but only hard leather can be skived and soft leather cannot be skived well
Solution Approach 1:
The invention transforms the static, unidirectional movement of the flat blade into a dynamic system with both linear movement and oscillation. The blade oscillates back and forth while moving forward, creating a scissoring action that enables effective cutting of both hard and soft leather while maintaining relative mechanical simplicity.
4Device complexity
If the leather is fixed and skived by lever action, then the machine is simple, but the skived surface has steps and curves cannot be skived continuously
Solution Approach 1:
The invention makes both the leather feed system and blade oscillating system dynamic rather than static. The roller continuously feeds the leather through the cutting zone while the blade oscillates, ensuring continuous contact and uniform cutting depth, which eliminates steps on the skived surface and enables continuous curving operations.
Solution Approach 2:
The invention ensures continuous useful action by continuously feeding the leather through the roller while the blade oscillates continuously during cutting. This continuous operation eliminates interruptions and variations in cutting depth that cause steps on the skived surface, enabling smooth continuous skiving including curves.
Data Source
AI summary
Provided is a compact and lightweight leather skiving machine capable of skiving both hard leather and soft leather through oscillation of a flat blade. The leather skiving machine is characterized by comprising at least a table upon which a piece of leather is placed, a roller for moving the leather, a presser foot for pressing down the leather, a flat blade for skiving the leather, and a drive mechanism for moving each of the roller and the flat blade, wherein the leather is sandwiched from above and below by the roller and the presser foot at a pressing point on the table while being moved, and the flat blade is provided at a position 0-5 mm in the movement direction from the pressing point and skives while oscillating the leather.