Banknote Storage Winding Drum Bump Elimination
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Solution Overview
Problem
Current financial self-service scrolling mechanisms experience instability and malfunction due to irregular circular formations in banknote temporary storage units caused by bumps, leading to uneven stacking and technical issues during banknote reception and output.
Innovation Solution
A banknote temporary storage device with sensors and a control method that calculates the width of banknotes and bump radius, detecting potential bumps and adjusting the interval between banknotes on the storage coiling block to eliminate them by changing the motor stop timing, ensuring even stacking and preventing irregular circular formations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If banknotes are stored continuously on a banknote temporary storage unit via coiling tapes, then banknotes can be received and stored automatically, but banknotes stack in the same position forming bumps that cause instability and malfunction
Solution Approach 1:
The control unit calculates the expected stacking position of each banknote before it actually enters the storage unit. By predicting where bumps will form based on the current storage state, the system can pre-adjust the coiling tape position or motor timing to prevent bump formation before it occurs, ensuring continuous automatic storage without instability
Solution Approach 2:
The system continuously monitors the storage state of the banknote temporary storage unit and uses this feedback to dynamically adjust the coiling tape positioning and motor control parameters. This closed-loop control ensures that even as banknotes accumulate and change the storage geometry, the system maintains proper spacing and prevents bump formation that would cause malfunction
2Quantity of substance
If the perimeter difference between adjacent rings is small, then the storage unit can accommodate more banknotes, but banknotes stack in the same position of different rings forming bumps
Solution Approach 1:
The control unit applies different positioning strategies to different regions of the storage unit. When detecting that banknotes are stacking at the same position across different rings, the system locally adjusts the coiling tape position or introduces variable spacing at specific angular positions, rather than uniformly spacing all banknotes, thereby preventing bump formation while maintaining high storage capacity
Solution Approach 2:
The system dynamically changes the spacing parameter between banknotes based on their position in the storage unit. By adjusting the interval between coiled banknotes according to the local geometry and detected stacking patterns, the system prevents uniform stacking at identical positions across rings, ensuring manufacturing precision is maintained throughout the storage capacity
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 effectively addresses instability and malfunction issues by ensuring even banknote stacking and smooth operation in the scrolling mechanism, preventing bumps and maintaining system stability during banknote reception and output.
Implementation Method 1
controlling a first power motor to start when the front end of a banknote enters into a first photoelectric sensor and stop when the back end of the banknote leaves a second photoelectric sensor
Data Source
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Figure 2
Figure 3~4
AI summary
A temporary paper money storage device, comprising: a timing unit (105), used for acquiring the time from the moment when the front end of paper money enters a first sensor to the moment when the tail end of the paper money leaves the first sensor (104); a computing unit (106), used for computing the width of the paper money according to the time acquired by the timing unit 105, then computing the radius of a convex point of a storage winding drum (101) according to the width when the convex point is generated, and determining, according to the radius of the convex point, conditions under which the storage winding drum generates the convex point; a detection unit (107), used for detecting, according to the real-time radius of the storage winding drum (101), whether the conditions under which the storage winding drum (101) generates the convex point are established; and an interval control unit (108), used for changing an interval d of the paper money on the storage winding drum (101) in a predetermined control mode to eliminate the convex point when the detection unit detects that the conditions under which the storage winding drum (101) generates the convex point are established. By means of the control method of the temporary paper money storage device, the technical problem that due to the fact that the temporary paper money storage unit forms an irregular circle after a convex point is formed on the temporary paper money storage unit, instability and faults are caused when paper money is fed into or discharged from a rolling mechanism is solved.