Rotatable Document Mounting Board for Sheet Feeding
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Solution Overview
Problem
Existing sheet feeding devices face challenges in preventing overlap feeding, particularly when a large number of documents with significant weight are fed, as the separation member can be pushed up, leading to paper jams and inefficient document separation.
Innovation Solution
A sheet feeding device with a document mounting board featuring a first member inclined towards the feed mechanism and a second member connected to the first member, which can rotate based on detected document weight, adjusting the angle to reduce the pressing force on the separation member and prevent overlap feeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of documents is large and the weight of the documents is large, then the documents can be fed continuously, but the separation member is pushed up by the bundle of documents making it difficult to properly separate the documents
Solution Approach 1:
The document mounting board is designed with a rotatable second member that can dynamically change its angle relative to the first member based on the detected document weight. When a large number of heavy documents are detected, the second member rotates to reduce the pressing force on the separation member, preventing it from being pushed up and maintaining proper document separation throughout continuous feeding operations.
Solution Approach 2:
The system changes the physical parameter of the mounting board's angle by rotating the second member in response to document weight detection. This parameter change allows the pressing force on the separation member to be adjusted dynamically, ensuring that even when feeding large bundles of documents, the separation member maintains its position for accurate document separation.
2Productivity
If the separation member is pushed up by the bundle of documents, then continuous feeding may be achieved, but overlap feeding occurs causing paper jams
Solution Approach 1:
The system employs a document weight detecting unit that provides feedback on the weight of documents mounted on the board. Based on this feedback, the control unit adjusts the angle of the second member to maintain optimal pressing force on the separation member, preventing overlap feeding and paper jams while enabling continuous feeding operations.
Solution Approach 2:
The mounting board system automatically adjusts its own configuration by rotating the second member in response to detected document weight, without requiring external intervention. This self-adjusting mechanism ensures that the pressing force on the separation member is always appropriate for the current document load, preventing harmful overlap feeding while maintaining continuous feeding capability.
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 effectively prevents overlap feeding by adjusting the angle of the second member in response to document weight, reducing the pressing force on the separation member and ensuring proper document separation, thereby avoiding paper jams and maintaining feeding efficiency.
Implementation Method 1
turns about the turning shaft depending on the weight of the documents detected by the document weight detecting unit to change an angle with respect to the first member
Data Source
AI summary
In a sheet feeding device, a document mounting board includes a first member that includes a first mounting surface and is located on the feed mechanism side in the feeding direction of the documents in the feed mechanism, the first mounting surface being inclined to a lower side toward the feed mechanism, and a second member that includes a second mounting surface on which the documents are mounted and is disposed on a side opposite to the side of the first member on which the feed mechanism is located, and the second member is connected to the first member to be rotatable about a second turning shaft and turns about the second turning shaft depending on the weight of the documents detected by the weight sensor to change an angle with respect to the first member.