Automated Garment Sewing System for Fabric Bag Production
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Solution Overview
Problem
Current methods for producing bags and sacks from polyethylene and polypropylene fabrics are inefficient, leading to high waste generation, increased production costs, and variability in quality due to reliance on manual processes and lack of automation in garment sewing integration.
Innovation Solution
An automated production system that integrates garment sewing with various fabric types, including polypropylene and polyethylene, featuring an input unit, edge folding and sewing station, handle preparation, folding units, sewing stations, and ironing and stacking stations to minimize waste and ensure standardization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual garment sewing processes are used for bag production, then flexibility in handling different fabric types is maintained, but production time increases and quality consistency deteriorates
Solution Approach 1:
The patent replaces manual garment sewing machines with an automated sewing system that uses robotic or computer-controlled mechanisms. This automated system can handle various fabric types (polyethylene, polypropylene, woven, non-woven) while maintaining consistent sewing patterns and reducing production time through programmable motion control and automated thread management.
Solution Approach 2:
The system incorporates adjustable parameters including seam width, stitch density, sewing speed, and fabric tension control. These parameters can be dynamically modified through software to accommodate different fabric types and bag designs, maintaining versatility while operating at optimized speeds for each material type.
2Ease of operation
If manual garment sewing is used for bag production, then operational simplicity is maintained, but manufacturing precision and quality consistency worsen
Solution Approach 1:
The automated sewing system incorporates sensors that monitor seam quality, thread tension, fabric position, and stitch formation in real-time. Feedback from these sensors is fed to the control system, which automatically adjusts sewing parameters to maintain consistent quality. The system can detect and correct deviations from standard patterns, ensuring uniform bag production.
Solution Approach 2:
Manual sewing operations are replaced with computer-controlled automated sewing mechanisms that execute precise programming. The system uses digital patterns and automated positioning systems to ensure consistent seam placement, stitch spacing, and fabric alignment, eliminating the variability inherent in manual operations.
3Productivity
If automated manufacturing systems are used for bag production, then productivity increases, but device complexity increases
Solution Approach 1:
The automated sewing system is designed as a universal platform that can handle multiple fabric types, bag styles, and seam configurations through software programming. Rather than requiring separate specialized equipment for each application, a single multi-functional system performs all sewing operations, reducing overall system complexity while maintaining high productivity across different product variants.
Solution Approach 2:
The sewing system is divided into modular components including fabric feeding mechanisms, sewing heads, quality inspection sensors, and control units. Each module can be independently configured and maintained, reducing the complexity of the overall system while enabling high-speed automated operation. The modular design allows for flexible reconfiguration without requiring complete system replacement.
Data Source
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AI summary
The invention relates to a garment-sewn bag manufacturing system (10) for the production of bags or sacks of technical or non-technical, woven or non-woven fabrics made of polypropylene (PP) or polyethylene (PE) comprises of an edge folding and sewing station (12) in which the edges of the fabric directed from an input unit (11) to a forming unit (15) are folded and secured by garment sewing, a handle preparation and fitting station (13) to which the handles are adapted by garment sewing on the folded edges, a length sewing station (16) which allows the side edges of the shaped fabric to be joined with the garment sewing and a triangular cutting and sewing station (21) to form the bottom of the bag.