Sheet Handling Device Aligned Bunch Stacking
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Solution Overview
Problem
Existing sheet handling devices face challenges in efficiently stacking multiple sheets of different sizes into aligned bunches, leading to increased time and space requirements, and misalignment issues that can result in dropped bills or aesthetically unpleasing stacks.
Innovation Solution
A sheet handling device with a casing, storage section, main transport path, temporarily holding section with a looped transport path, and a controller that detects sheets and controls their movement to stack them into a neatly aligned bunch by transporting sheets along the main and looped paths, allowing for rapid and efficient alignment of multiple sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If bills are sequentially dropped on a stage and stacked into a bunch without alignment, then the stacking process is simple and rapid, but the edges of the stacked bills are misaligned causing user errors and poor appearance
Solution Approach 1:
The patent applies preliminary action by detecting the length of each bill before stacking and adjusting the stopper position in advance. The stopper is moved to the appropriate position corresponding to the detected bill length before the bill is stacked, ensuring that the rear edges of bills are properly aligned without requiring complex real-time adjustment mechanisms during the stacking process.
2Manufacturing precision
If the stopper state is changed for every bill of different size to achieve alignment, then edge alignment is improved, but the stacking speed decreases because the stopper must be adjusted each time
Solution Approach 1:
The system applies self-service by using the detection section to automatically identify bill lengths and the controller to automatically adjust the stopper position without manual intervention. The stopper is repositioned to match the detected bill length, enabling automatic adaptation to different bill sizes while maintaining both alignment precision and stacking speed.
3Manufacturing precision
If bills are transported back and forth in a long transport path to align edges, then alignment is achieved, but the time required to stack bills increases and large space is required
Solution Approach 1:
The patent extracts the alignment function from a complex transport and repositioning mechanism and implements it through a simple stopper adjustment. Instead of transporting bills back and forth through a long path, the stopper is merely repositioned to the appropriate location corresponding to the bill length, achieving alignment with minimal movement and time loss.
4Reliability
If a winding storage part or temporary storage part is used to store bills, then bills can be stored and delivered reliably, but the device cannot stack bills into a bunch and the device size increases
Solution Approach 1:
The patent merges the storage function with the stacking function by using the same stage and stopper mechanism for both purposes. Bills are stacked into a bunch on the stage using the stopper for alignment, and the stacked bunch can then be reliably delivered. This integration eliminates the need for separate winding storage parts or temporary storage parts, reducing device size while maintaining reliability.
Data Source
AI summary
A sheet handling device includes a main transport path, a temporarily holding section provided in the main transport path, a transport section, a detection section provided at a predetermined detection position in the main transport path and a controller. The temporarily holding section includes a looped transport path. The controller performs a procedure including the steps of (I) transporting the sheet traveling along the main transport path to the looped transport path, (II) transporting another sheet along the main transport path, (III) controlling the transportation of the sheet and the transportation of said another sheet in response to the arrival of said another sheet at the detection position such that the sheets are stacked into a bunch in the looped transport path with certain parts of the sheets being aligned and (IV) repeating the steps (II) and (III) as required.