ATM Banknote Deflection Correction Mechanism
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Solution Overview
Problem
Conventional deflection correcting devices in ATMs often cause banknotes to jam due to insufficient rigidity, especially with old banknotes, as they deflect and get intercepted by the reference wall during the correction process.
Innovation Solution
A deflection correcting device with a banknote running passage defined by first and second passage plates, featuring deflection correcting wheels and a lateral guiding mechanism, including conical wheels and a turning belt, that gradually guide banknotes to the reference side, preventing jamming by adjusting the banknote's position and ensuring it fits with the reference side.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple deflection correcting wheels are provided in a banknote running passage to move banknotes towards the reference wall, then deflection correction is achieved, but old banknotes with insufficient rigidity are apt to be jammed in the reference wall and passage
Solution Approach 1:
The deflection correcting device is divided into multiple independent correcting wheels arranged in sequence along the banknote running passage. Each wheel provides incremental deflection correction, gradually guiding the banknote toward the reference wall without requiring a single large corrective force that would jam flexible banknotes.
Solution Approach 2:
The correcting wheels are positioned at specific locations along the passage where deflection correction is most needed. The wheels apply localized pressure only to the deflecting portions of banknotes, providing precise correction while minimizing overall mechanical stress on the banknote structure.
2Manufacturing precision
If the reference wall intercepts banknotes to correct deflection, then deflection correction is achieved, but banknotes with insufficient rigidity are jammed during the process
Solution Approach 1:
The correcting wheels perform preliminary deflection correction before the banknote reaches the reference wall. By gradually guiding the banknote toward the reference position in advance, the reference wall serves only as a final positioning element rather than a forceful interceptor, preventing jamming of flexible banknotes.
Solution Approach 2:
The correcting wheels act as intermediary elements between the banknote and the reference wall. These wheels gradually guide the banknote toward the reference position, mediating the interaction and avoiding direct, forceful interception by the reference wall that would cause jamming.
3Productivity
If banknotes are required to fit with the reference wall and keep moving during deflection correction, then continuous transmission is achieved, but banknotes with insufficient rigidity cannot maintain proper position
Solution Approach 1:
Multiple correcting wheels are arranged in sequence along the banknote running passage, providing continuous deflection correction throughout the transmission path. This ensures that banknotes receive ongoing guidance and positioning assistance, maintaining both continuous transmission and positional stability even for flexible 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 device effectively corrects banknote deflection and prevents jamming by using a combination of deflection correcting wheels and a lateral guiding mechanism to adjust the banknote's position, ensuring it aligns with the reference side, even with banknotes of insufficient rigidity.
Implementation Method 1
the turning belt is installed between the two conical wheels; the power shaft fixedly passes through one of the two conical wheels and is configured to drive the conical wheel to rotate; and the turning belt is arranged on the reference side and has a running direction coincident with the transmission direction
Data Source
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AI summary
A correction device comprises a banknote passage composed of a first passage plate (101) and a second passage plate (102). Correction wheels (004) having a correction direction inclined to the reference side of the banknote passage are disposed inside the banknote passage. A plurality of correction wheels (004) is separately arranged along a conveying direction of the banknote passage and gradually approaches the reference side. A side guide mechanism (009) is mounted on the reference side and is used for driving the banknotes, arriving at the reference side, to move towards the conveying direction of the banknote passage. A correction adjusting wheel (010) is arranged at the tail end of the inclining direction of the plurality of the correction wheels (004) at the position close to the reference side. The correction direction of the correction adjusting wheel inclines to the reference side. The structure prevents the banknotes from being jammed between reference walls in a passage during the correcting process. Also provided is an automated teller machine comprising the correction device.