Rotatable Vane Medium Stacking Sheet for Wear Reduction
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Solution Overview
Problem
Conventional medium stacking sheets suffer from excessive wear and durability issues due to continuous rubbing of vanes with the sheet cover and interference with surrounding components, leading to bent vane connection portions.
Innovation Solution
A medium stacking sheet with rotatably mounted vanes on a body, featuring stopper bump portions and grooves to limit vane rotation, preventing excessive bending and ensuring proper alignment during stacking and dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the vanes are made to rotate continuously to stack medium, then the stacking function is improved, but the vanes continuously rub against the sheet cover causing excessive wear and durability deterioration
Solution Approach 1:
The vanes are designed to be rotatably mounted on the body, allowing them to dynamically change their position between a forward rotation state (for stacking) and a rearward folding state (for idle position). This dynamic configuration enables the vanes to perform the stacking function when needed while avoiding continuous contact with the sheet cover, thus resolving the contradiction between stacking productivity and connection portion durability.
2Manufacturing precision
If the vanes are rotated to strike the rear end of medium for uniform stacking, then stacking uniformity is improved, but the vanes interfere with surrounding components generating excessive load
Solution Approach 1:
The rotatable mounting allows vanes to be positioned forward during stacking operations to strike the rear end of medium for uniform stacking, then folded rearward during idle states to avoid interference with surrounding components. This dynamic repositioning eliminates excessive load generation while maintaining stacking uniformity when needed.
Solution Approach 2:
The vane assembly is segmented into multiple independent vanes mounted on the body, each capable of rotating and folding independently. This segmentation allows precise control of each vane's position during stacking versus idle states, enabling uniform stacking when required while minimizing interference and load during idle periods.
3Ease of operation
If the vane connection portions are kept in an excessively bent state during idle, then the vanes are retracted, but the connection portions suffer from excessive wear and durability deterioration
Solution Approach 1:
The rotatable mounting mechanism enables the vanes to be folded rearward during idle states to achieve retraction, while the controlled rotation mechanism prevents excessive bending of connection portions. The design allows the vanes to be positioned in a folded state without subjecting the connection portions to excessive wear, thus resolving the contradiction between ease of operation and durability.
Data Source
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AI summary
A medium stacking sheet (100) is installed on a rotation shaft of a medium separating and stacking apparatus for stacking or dispensing a medium. The medium stacking sheet includes a body (110) fixed to the rotation shaft and having a plurality of rotation holes (111) which are spaced apart from each other in a rotation direction of the rotation shaft, and a plurality of vanes (120) each including a vane pin (121) rotatably installed in a corresponding rotation hole and a vane piece (122) coupled to the vane pin to stack the medium.