Automated Face Mask Strap Bonding System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current face mask production methods are inefficient and lack automation, resulting in low production speeds and suboptimal manufacturing processes.
Innovation Solution
A high-speed automated system and method for producing face masks, involving the coupling of tensioned elastic structures to web materials, forming a continuous elastic strap, and integrating it with a multi-layer mask web, which includes an inner, outer layer, and a filter layer, to create a continuous face mask composite structure that is then cut into discrete masks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual strap attachment methods are used, then ease of manufacture is maintained, but productivity is low and manufacturing efficiency is poor
Solution Approach 1:
The patent replaces manual mechanical strap attachment with an automated bonding system that uses heat and pressure to attach elastic straps to mask webs. The bonding apparatus automatically positions and secures straps at predetermined locations, eliminating manual labor while maintaining attachment quality through controlled thermal and mechanical processes.
Solution Approach 2:
The system performs preliminary positioning of elastic straps onto mask webs before final bonding. The bonding apparatus pre-aligns straps at predetermined locations and secures them in place, ensuring proper positioning is established before the actual attachment process begins, which streamlines the overall manufacturing flow.
2Productivity
If automated bonding systems are implemented, then productivity increases, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated bonding apparatus that simultaneously performs heating, pressing, and strap positioning. The apparatus merges the thermal bonding mechanism with the mechanical positioning system, allowing multiple operations to occur in one station, which increases productivity without proportionally increasing overall system complexity.
Solution Approach 2:
The bonding apparatus is designed with universal capabilities to handle different strap types, mask web configurations, and attachment locations. The system can accommodate various elastic strap dimensions and materials while maintaining the same basic bonding mechanism, reducing the need for multiple specialized devices and thereby controlling complexity.
3Ease of manufacture
If continuous elastic straps are used, then ease of manufacture improves through automation, but manufacturing precision requirements increase
Solution Approach 1:
The bonding apparatus incorporates positioning mechanisms that ensure elastic straps are accurately placed at predetermined locations on mask webs. The system uses fixed fixtures and guided positioning structures that provide consistent reference points, ensuring precise strap placement without requiring complex active feedback control systems.
Solution Approach 2:
The system controls bonding precision by carefully managing thermal and pressure parameters during the attachment process. By optimizing the temperature, pressure, and dwell time parameters, the apparatus achieves accurate strap positioning and secure attachment while maintaining ease of automated operation.
Data Source
AI summary
A method of manufacturing a face mask comprises coupling at least one tensioned elastic structure to at least one web material to form a continuous elastic strap, advancing the continuous elastic strap in a machine direction, coupling the continuous elastic strap to a multi-layer mask web traveling in the machine direction to form a continuous face mask composite structure, and cutting the continuous face mask composite structure to define a plurality of discrete face masks. The multi-layer mask web comprises an inner web layer, an outer web layer, and a filter layer positioned therebetween.