Rotating Mesh Trimmer for Flexible Screen Frame Production
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Solution Overview
Problem
Current manufacturing processes for flexible window screens are labor-intensive and inefficient, requiring manual trimming of excess mesh material and welding of flexible screen frames, which can lead to inferior welds and contamination issues.
Innovation Solution
A mesh trimmer with rotating blades and a supporting structure that automates the trimming of excess mesh material from flexible screen frames, using a scissor-like action with opposing rotating blades and a supporting frame to secure the screen frame during the process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual trimming processes are used, then device complexity is reduced, but productivity decreases and manufacturing precision worsens
Solution Approach 1:
The trimmer device is designed to be self-contained with integrated rotating blades and supporting structures that automatically guide and trim the excess mesh material without requiring external manual intervention during the trimming operation, thereby increasing productivity while maintaining manageable device complexity
Solution Approach 2:
The patent replaces manual mechanical trimming operations with an automated rotating blade cutting system, where the mechanical action of rotating blades cutting mesh material substitutes for manual cutting tools and operations, significantly improving production efficiency
2Manufacturing precision
If manual welding processes are used, then device complexity is reduced, but manufacturing precision worsens due to contamination and inferior welds
Solution Approach 1:
The patent applies preliminary cleaning action to remove the polymer coating from the metal core material before welding, ensuring that the welding surface is free of contaminants that would interfere with electrical contact and weld quality, thereby improving manufacturing precision
Solution Approach 2:
The patent extracts or removes the polymer coating material from the metal core before welding operations, separating the coating layer from the base metal to prevent contamination of the weld zone and ensure proper electrical contact for high-quality welds
3Loss of substance
If excess mesh material is not trimmed, then manufacturing time is reduced, but loss of substance increases and product quality worsens
Solution Approach 1:
The trimmer device enables continuous trimming operation where the rotating blades continuously cut and remove excess mesh material as the screen frame passes through the device, maintaining continuous productive action without interruption to improve the balance between material waste reduction and time consumption
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The mesh trimmer efficiently and accurately trims excess mesh material, reducing manual labor and improving the quality of welds by minimizing contamination, thus enhancing the production efficiency and durability of flexible window screens.
Implementation Method 1
rotating blades that cut off excess mesh material overhanging flexible screen frames
Implementation Method 2
the abutting terminal ends of the shaped frame are welded to each other to form a closed geometric shape
Implementation Method 3
the screen mesh is fused to the flexible screen frame by the application of heat which renders the polymer material of the screen frame, the screen mesh or both at least partially molten during the manufacturing of the screen
Data Source
AI summary
An excess screen mesh trimmer to trim excess mesh from flexible screen frames to which the mesh is at least partially fused, including a trimmer assembly including at least a first rotating blade having a sharpened outer perimeter edge and a screen frame supporting assembly that supports a flexible screen frame proximate the trimmer assembly and proximate the at least first rotating blade perimeter edge in a parallel orientation to a portion of the screen frame A supporting frame supports the trimmer assembly and the screen supporting frame. Also, a method of trimming excess mesh from flexible screen frames placing the flexible screen frame in contact with a portion of an infeed fence and advancing the flexible screen frame in a direction parallel to the portion of the infeed fence and severing the excess screen mesh from the flexible screen frame proximate the flexible screen frame.