Paper Sheet Discharge Forming Mechanism for Aligned Tray Stacking
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Solution Overview
Problem
Existing circulation-type banknote processing devices face issues with stacking failures and misalignment of banknotes due to curling habits and reduced stiffness, leading to inefficiencies in dispensing and increased user wait times.
Innovation Solution
A paper sheet discharge stacking device with a discharge transport route and forming mechanism that alternately forms upward and downward protruded parts along the short side of paper sheets to provide stiffness and correct curling habits, ensuring proper stacking on a dispense tray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If banknotes are retained on the circulation drum in a superimposed manner, then storage capacity is improved, but curling habits are formed on banknotes causing stacking failures
Solution Approach 1:
The patent extracts the harmful curling effect by removing banknotes from the circulation drum and passing them through a forming mechanism that eliminates the curling habit before stacking. The forming mechanism applies pressure to flatten the banknotes, taking out the unwanted curling property while preserving the banknotes for storage.
Solution Approach 2:
The patent applies preliminary action by flattening banknotes in advance before they are stacked on the dispense tray. The forming mechanism pre-processes the banknotes to eliminate curling habits before the stacking operation, ensuring proper alignment and preventing stacking failures.
2Loss of time
If banknotes are dispensed one by one to a dispense tray, then user waiting time is reduced, but stacking failures occur due to curling habits
Solution Approach 1:
The forming mechanism performs preliminary flattening action on each banknote before it reaches the dispense tray. This pre-processing ensures that even when banknotes are dispensed individually, they maintain proper alignment and do not cause stacking failures due to curling habits.
Solution Approach 2:
The forming mechanism acts as an intermediary between the circulation drum and the dispense tray. It mediates the transition by eliminating curling habits while preserving the rapid dispensing capability, allowing banknotes to be dispensed one by one without stacking failures.
3Productivity
If banknotes with reduced stiffness are discharged, then dispensing speed is improved, but alignment on the dispense tray deteriorates
Solution Approach 1:
The forming mechanism applies preliminary pressure to stiffen and flatten banknotes with reduced stiffness before they are dispensed. This pre-processing ensures that even crumpled or flexible banknotes maintain proper alignment on the dispense tray while allowing rapid dispensing.
Solution Approach 2:
The forming mechanism changes the physical parameters of banknotes by applying pressure to increase their stiffness and flatten their shape. This parameter change enables banknotes with initially reduced stiffness to maintain proper alignment during rapid dispensing operations.
Data Source
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AI summary
To provide a paper sheet discharge stacking device and a circulation-type paper sheet processing device that prevent a paper sheet dispensed from a circulation unit from causing a stacking failure on a dispense tray. The present invention includes a discharge transport route 510 on which paper sheets dispensed from circulation units 30 and 40 are transported to a discharge tray 700 with a short side thereof at the head, and a forming mechanism 550 that forms a short side shape of each of the paper sheets transported on the discharge transport route into a predetermined shape across the entire length in a long edge direction and that discharges the formed paper sheet onto the discharge tray.