Paper Sheet Bundling Tape Tension Control
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Solution Overview
Problem
Existing paper sheet bundling apparatuses face malfunctions due to tape deformation, which can lead to inaccurate detection of tape loops and hinder the bundling process, especially when the tape is left stationary for extended periods.
Innovation Solution
A paper sheet bundling apparatus that includes a reel unit and a tape transport unit to manage tape tension and position, reducing deformation by rotating the tape roll in the feeding direction or transporting the tape back to the reel unit, ensuring accurate tape feeding and loop formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the tape is continuously arranged along the transport path in a stand-by state with tensile force applied to eliminate slack, then the tape feeding amount can be accurately grasped in subsequent bundling operations, but deformation such as torsion or bending is likely to be generated in the tape
Solution Approach 1:
The system performs preliminary actions by periodically transporting the tape in the winding direction before bundling operations to prevent deformation accumulation. This proactive measure eliminates deformation in advance while maintaining the transport path arrangement, ensuring both feeding accuracy and shape stability are preserved during subsequent operations.
Solution Approach 2:
The patent implements periodic action by executing tape transport operations at predetermined intervals during stand-by states. This periodic movement prevents deformation accumulation without requiring continuous operation, thereby maintaining tape feeding accuracy while preventing torsion and bending deformation.
2Productivity
If the tape is arranged continuously along the transport path with tensile force applied, then the subsequent bundling operation can be immediately performed with accuracy, but the tape deformation may cause malfunction in detection systems
Solution Approach 1:
The system performs preliminary tape transport operations to eliminate deformation before detection malfunctions occur. By proactively moving the tape in the winding direction during stand-by periods, the system ensures the tape maintains proper shape for reliable detection while remaining ready for immediate bundling operations.
Solution Approach 2:
The patent applies the skipping principle by rapidly transporting the tape in the winding direction during predetermined intervals to quickly eliminate deformation. This brief, intensive action occurs faster than the deformation accumulation rate, maintaining both productivity and detection reliability without requiring continuous operation.
3Duration of action of stationary object
If the tape is kept in a stand-by state with continuous arrangement along the transport path, then no interruption occurs in subsequent bundling operations, but deformation generates over time when the power supply is off or bundling is not performed
Solution Approach 1:
The patent implements periodic action by transporting the tape at predetermined intervals during extended stand-by periods. This periodic movement prevents deformation accumulation even when the power supply is off or bundling operations are not performed, allowing the tape to maintain both its arranged position and shape stability over long durations.
Solution Approach 2:
The system performs preliminary tape transport operations before deformation becomes problematic. By proactively moving the tape during stand-by periods, the system extends the effective stand-by duration while preventing deformation, ensuring the tape remains ready for immediate use without shape compromise.
Data Source
AI summary
A paper sheet bundling apparatus includes: a reel unit, in which a tape roll is set, configured to rotate the tape roll in a direction in which the tape is fed, and a direction in which the tape is wound; a tape transport unit, having a transport path provided between the reel unit and a tape bundling unit, configured to transport the tape, along the transport path, to supply the tape to the tape bundling unit when the tape bundling unit performs bundling, and to cause, when the tape bundling unit does not perform bundling, the tape to be in a stand-by state in which the tape is arranged continuously along the transport path; and specific operation execution means for executing, at a predetermined time, a specific operation of reducing tensile force in the tape arranged continuously along the transport path, when the tape bundling unit does not perform bundling.