Banknote Stacking Vent Layout for Compact Dust Collection
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Solution Overview
Problem
Conventional banknote processing devices with lateral or below-path suction devices are inefficient in collecting all dust generated during processing, leading to dust dispersion and settlement on the mounting table, and require larger, heavier suction systems that are unsuitable for small devices.
Innovation Solution
A banknote processing device with a stacking unit featuring a dust collection vent arranged in front of its opening, combined with a mounting table equipped with a dust collection mechanism that includes suction fans, filters, and a duct to effectively capture and expel dust, preventing it from settling on the table.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a larger suction device is used to improve dust collection efficiency, then the dust collection capability is improved, but the overall size and weight of the banknote processing device increases
Solution Approach 1:
The suction device is divided into multiple smaller suction ports distributed at different positions (front, rear, left, and right sides of the stacking unit) rather than using a single large suction device. This segmentation allows effective dust collection from multiple directions while keeping each individual suction component small and lightweight
Solution Approach 2:
Multiple suction ports are combined with a single suction fan and shared airflow path. The front suction port and rear suction port connect to the same suction fan through separate passages, merging their functions into one compact suction system that reduces overall device weight while maintaining effective dust collection
2Object-affected harmful factors
If a larger suction device is used to improve dust collection efficiency, then the dust collection capability is improved, but the overall size of the banknote processing device increases
Solution Approach 1:
The suction function is segmented into multiple small suction ports positioned at front, rear, left, and right sides of the stacking unit. This allows comprehensive dust collection from all directions without requiring a large single suction device, thus maintaining compact device volume
Solution Approach 2:
The suction passages are designed to be integrated within the existing device structure. The front suction passage and rear suction passage are nested within the device housing, utilizing available internal space efficiently without increasing external dimensions
3Device complexity
If conventional suction devices are positioned laterally or below the transport path, then the device structure is simplified, but dust collection completeness is insufficient
Solution Approach 1:
The suction system is segmented into multiple suction ports positioned at front, rear, left, and right sides of the stacking unit. This multi-position segmentation ensures dust is collected from all directions, achieving complete dust collection while keeping each individual suction component simple in structure
Solution Approach 2:
Each suction port is positioned at a specific location where dust generation and dispersion patterns are most prominent. The front suction port collects dust near the opening, the rear suction port collects dust at the back, and the lateral ports collect dust from sides, creating locally optimized dust collection at each position
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 ensures efficient collection of dust near the opening of the stacking unit, preventing dust dispersion and settlement on the mounting table, while maintaining a compact device size by using a smaller suction system and ensuring clean air is expelled away from the user.
Implementation Method 1
a suction fan that generates a suction force to suck the dust into the dust collection vent
Implementation Method 2
a filter that is arranged between the dust collection vent and the suction fan and that captures the dust from the air which is sucked by the suction fan
Data Source
AI summary
A banknote processing device is mounted on a mounting table. The banknote processing device includes a stacking unit having an opening for removing banknotes. A dust collection vent is arranged in front of the opening of the stacking unit on the mounting table. A suction fan sucks dust dispersing from the opening of the stacking unit into a dust collection vent. A filter captures the dust from air that is sucked in. A duct expels a dust-free air from an exhaust vent provided in an exhaust passage formed around the suction fan. In another configuration, the dust collection vent is provided inside the stacking unit, and the dust generated inside the stacking unit is sucked in by the suction fan.