Template-Guided Selective Punching for Leather Ventilation
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Solution Overview
Problem
Existing methods for punching leather or flexible materials to create patterns or designs are limited, resulting in uniform punching that weakens the material, complicates embroidery, and requires excessive labor and waste, as they cannot selectively punch predefined zones or create both punched and unpunched regions on the same piece.
Innovation Solution
A method using a template to guide punching machines to create punched regions only in specific areas of flexible materials, allowing for both punched and unpunched areas on the same piece, enabling patterned designs while maintaining material strength and simplifying the process by adapting to existing machinery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If uniform punching is applied to the entire leather surface, then air circulation and perspiration are improved, but seam strength and material integrity are weakened
Solution Approach 1:
The patent applies selective punching that creates holes only in specific zones of the leather garment rather than uniformly across the entire surface. This local quality approach allows punched zones to provide ventilation and perspiration relief while unpunched zones maintain full seam strength and material integrity, resolving the contradiction between comfort and structural strength.
2Adaptability or versatility
If selective punching is implemented to create patterns and logos, then aesthetic value and design flexibility are improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent employs pre-prepared punching plates that contain predetermined patterns, logos, or designs already configured with hole arrangements. These plates are simply positioned and activated on the leather material, allowing complex selective punching patterns to be achieved without modifying the punching machine itself. This preliminary preparation of punching plates provides design flexibility while keeping the machine simple.
Solution Approach 2:
The patent uses punching plates that are reusable templates containing the desired pattern or logo design. These plates can be copied and reused multiple times to create identical selective punching patterns on different leather pieces, achieving design consistency and flexibility without requiring complex programming or customization of the punching machine for each design.
3Ease of manufacture
If conventional punching machines are used, then manufacturing simplicity is maintained, but selective punching and pattern creation are impossible
Solution Approach 1:
The patent introduces punching plates as intermediary elements between the simple conventional punching machine and the leather material. These plates act as mediators that translate the simple reciprocating motion of the machine into selective, patterned punching by having pre-configured hole arrangements. This allows conventional simple machines to achieve selective punching capability through the intermediary punching plate.
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3C
AI summary
A method for creating a punched region (36) on a flexible plane material, comprising the steps of: a) creating a substantially plane template (40) having a shape corresponding to the shape of said region (36) of flexible material to be punched; b) arranging said template(40) on a part of a conveyor belt (25) of a punching machine (21) having a beat plate (7); c) arranging a portion (35) of said flexible material above said template (40) in a manner such as to interpose said template (40) between said portion of flexible material (35) and said part of conveyor belt (25); and d) creating said punching at said beat plate (7).