Cylindrical Fastener Outer Bag for Automated Bag Handling
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Solution Overview
Problem
Existing bag production and supply processes are labor-intensive, inefficient, and costly, with high potential for human error, resource wastage, and hygiene issues due to manual handling and manual operations such as binding, packing, and unpacking.
Innovation Solution
A cylindrical outer bag with a fastener made of resin film, allowing for continuous stacking and wrapping of bags, which can be easily engaged and disengaged, and integrated using roll winding or zigzag-folding to maintain bag alignment and stability, reducing manual labor and resource use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual operations are used for bag binding, packing, and unpacking, then flexibility and adaptability are maintained, but labor intensity increases and production efficiency decreases
Solution Approach 1:
The outer bag is designed with self-binding functionality through integrated binding members that automatically secure the outer bag to the product without requiring manual binding operations. The binding members engage with the product container and outer bag structure to maintain relative positional relationships automatically
Solution Approach 2:
Manual mechanical operations for binding, packing, and unpacking are replaced by an automated production line system that includes a bag making machine, filling machine, and sealing machine working in sequence. The system uses automated mechanisms rather than human hands to perform all binding and packing operations
2Productivity
If automated production lines are implemented, then production efficiency increases and labor intensity decreases, but system complexity increases
Solution Approach 1:
Multiple functional machines (bag making machine, filling machine, sealing machine) are merged into an integrated automated production line where machines are connected in sequence to perform operations continuously without manual intervention. The outer bag structure itself merges multiple functions (packaging, binding, positioning) into a single component
Solution Approach 2:
The automated production process is segmented into distinct operational stages (bag making, filling, sealing) that can be independently optimized and maintained. The outer bag is segmented into functional portions (binding members, sealing portions, body portions) that perform specific tasks
3Productivity
If multiple separate operations (binding, packing, sealing) are performed manually, then process flexibility is maintained, but production time increases
Solution Approach 1:
The automated production line implements continuous operation where the bag making machine, filling machine, and sealing machine operate in an unbroken sequence. The outer bag structure enables continuous binding and sealing operations without stopping for manual repositioning or adjustment
Solution Approach 2:
The outer bag is prepared in advance with pre-positioned binding members and sealing portions that are ready to engage with the product. The binding members are pre-formed and positioned on the outer bag before the packing operation begins
4Reliability
If manual handling is used throughout the process, then adaptability to different products is maintained, but error rate increases and hygiene standards may be compromised
Solution Approach 1:
The automated system performs all handling operations without human contact with the products or packaging materials. The machines automatically grasp, position, and secure the outer bags and products, eliminating manual handling entirely
Solution Approach 2:
The outer bag acts as an intermediary component between the product and the automated machines. The binding members and sealing portions on the outer bag provide standardized interfaces that the machines can reliably engage with, ensuring consistent and error-free operation
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 solution enhances production efficiency, stabilizes speed, reduces errors, and minimizes costs by automating bag handling, while maintaining hygiene and reducing waste, allowing for inline integration with filling machines.
Implementation Method 1
inner walls or an inner wall and an outer wall of the base material are mutually bonded or heat-welded along an edge of the cut portion
Data Source
AI summary
A product-containing outer bag in which a plurality of bags that are stacked continuously or intermittently in a row for parts of the bags, which are products, to overlap each other are wrapped with a cylindrical outer bag with a fastener to be integrated while a stacked state of the bags is held. The cylindrical outer bag with the fastener is made of a resin film as a base material and has a cylindrical shape having a uniform inner diameter and continuously extending along a cylinder length direction (X), at least one opening portion to be opened along the cylinder length direction (X), and the fastener on an inner wall side of the base material along an edge of the opening portion, and the fastener is engaged.