Banknote Bag Opening by Negative Pressure for Straight Deposit
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Solution Overview
Problem
Existing banknote processing systems face challenges in ensuring banknotes fall straight to the bottom of bags due to incomplete bag opening, requiring expensive arrangements like block-bottoms and gusseted sides, and necessitating manual expansion, which is undesirable for disposable bags.
Innovation Solution
A banknote processing equipment that uses a chamber with an open end and an extractor to create a lower ambient pressure within the bag, causing it to expand into an open configuration, allowing easy deposition of banknotes without the need for manual manipulation or expensive bag designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lightweight banknotes are deposited into a flattened bag, then the bag cannot open completely without manipulation, but manual manipulation is time-consuming and complex
Solution Approach 1:
The patent replaces manual mechanical manipulation of the bag with an automated extraction mechanism that uses negative pressure to automatically expand and open the bag, eliminating the need for manual opening operations
Solution Approach 2:
The bag automatically expands and opens itself through the extraction of air from the chamber, without requiring external manual manipulation. The system performs the opening function autonomously
2Manufacturing precision
If expensive block-bottom and gusseted side arrangements are used to ensure banknotes fall straight, then banknote deposition is improved, but manufacturing cost increases
Solution Approach 1:
The patent uses pneumatic extraction to create negative pressure that expands the bag and directs banknotes to fall straight to the bottom, replacing the need for expensive mechanical bag structures like block-bottoms and gusseted sides
Solution Approach 2:
The patent changes the pressure parameter within the chamber to achieve bag expansion and proper banknote deposition, eliminating the need for complex bag geometries
3Ease of manufacture
If disposable bags are used without special arrangements, then cost is reduced, but banknotes do not fall straight to the bottom
Solution Approach 1:
The extraction mechanism creates negative pressure that both expands the simple disposable bag and directs banknotes to fall straight to the bottom, achieving both low cost and high precision
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
Enables efficient and cost-effective banknote deposition into disposable bags by eliminating the need for special bag arrangements, reducing energy consumption, and minimizing noise and operational costs.
Implementation Method 1
an extractor adapted to establish a lower ambient pressure between the chamber and the bag to that within the bag to cause the bag to expand into an open configuration
Data Source
AI summary
Banknote processing equipment is disclosed, which comprises a chamber having an open end for insertion of a bag into the chamber and an extractor adapted to establish a lower ambient pressure between the chamber and the hag to that within the bag to cause the bag to expand into an open configuration during a banknote filling operation, whereby the banknote processing equipment can deposit banknotes in the bag.