Banknote Cash Unit Double Sealing Mechanism
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Solution Overview
Problem
Conventional banknote cash units fail to securely seal the opening of a storage bag due to deformation of fixation tabs caused by the weight of banknotes, leading to attachment failures during transportation.
Innovation Solution
A banknote cash unit with two sealing modules and a lifting member, where the first and second sealing modules generate distinct sealing portions to enhance the attachment of fixation tabs, and the lifting member supports the storage bag to prevent downward dragging, facilitating secure sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the storage bag is sealed using conventional single sealing method, then the structure is simple, but the sealing reliability is insufficient due to fixation tab deformation
Solution Approach 1:
The sealing structure is divided into two independent sealing modules, each with its own heating element and pressing mechanism. The first sealing module seals the storage bag at one location while the second sealing module seals at another location, creating multiple independent sealing points that collectively improve sealing reliability without requiring each individual seal to bear the full load.
Solution Approach 2:
The lifting member is activated before the sealing process to support the storage bag and prevent downward dragging during sealing. This preliminary action stabilizes the fixation tabs in their proper position before the sealing heat and pressure are applied, ensuring that the sealing operation can proceed without deformation interference.
2Quantity of substance
If the storage bag is filled with banknotes, then the storage capacity is maximized, but the fixation tabs deform due to the weight of banknotes
Solution Approach 1:
The lifting member acts as a counterbalancing mechanism that provides upward support force to counteract the downward weight of the filled storage bag. By positioning the lifting member to engage with the storage bag body, it prevents the fixation tabs from deforming under the weight load, allowing the storage bag to be filled to capacity without compromising the sealing structure.
3Quantity of substance
If the fixation tabs are allowed to deform, then the storage bag can accommodate more banknotes, but the sealing attachment fails
Solution Approach 1:
The lifting member is positioned and activated before the sealing operation to pre-stabilize the fixation tabs. This preliminary support action ensures that when the sealing heat and pressure are applied, the fixation tabs maintain their proper shape and alignment, enabling successful attachment even when the storage bag is filled to maximum capacity with banknotes.
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 provides double sealing of the storage bag opening, reducing deformation of fixation tabs and ensuring secure attachment, thereby preventing banknotes from escaping during transportation.
Implementation Method 1
a first melting member and a second melting member... The first melting member is for melting the first fixation tab and the second fixation tab cooperatively with the first cooperating member, so as to generate the first sealing portion
Data Source
AI summary
A banknote cash unit capable of securely sealing an opening of a storage bag is disclosed. The storage bag has a first fixation tab and a second fixation tab. The opening is defined between the first fixation tab and the second fixation tab. The banknote cash unit includes a housing, a banknote inlet unit and a paper sheet storing unit. The banknote inlet unit is disposed on the housing. The paper sheet storing unit is installed in the housing and for holding the storage bag. The paper sheet storing unit includes a first sealing module and a second sealing module disposed next to the first sealing module. When the second fixation tab is closed to the first fixation, the first sealing module generates a first sealing portion and the second sealing module generates a second sealing portion, so as to combine the first fixation tab and the second fixation tab.