Separation Mechanism With Adjustable Roller Gap
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Solution Overview
Problem
Traditional separation mechanisms in image scanning equipment often cause offset or scratching of documents like folded, thicker, or embossed papers due to a constant distance between separating and retard rollers, leading to inefficiencies during scanning.
Innovation Solution
A separation function releasing mechanism with a frame, separating rollers, and a pushing mechanism where the distance between the rollers is adjustable via a swinging bracket and sliding connecting element, allowing for dynamic adjustment to accommodate different document types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the distance between separating rollers and retard rollers is kept constant, then the structure is simple and stable, but documents that are folded, thicker, or embossed are apt to be offset or scratched
Solution Approach 1:
The patent applies the dynamics principle by making the distance between the separating rollers and retard rollers adjustable rather than fixed. The connecting element can slide along the guiding slot, allowing the separating mechanism to dynamically adjust its position according to the thickness and type of document being scanned, thereby preventing damage to folded, thicker, or embossed documents while maintaining structural simplicity.
2Adaptability or versatility
If the distance between separating rollers and retard rollers is increased to accommodate thick documents, then document damage is reduced, but thin or folded documents may not be separated effectively
Solution Approach 1:
The patent applies the parameter changes principle by enabling the distance parameter between the separating rollers and retard rollers to be variable. The connecting element's position can be adjusted to change the separation distance, allowing the mechanism to adapt to different document types (thin, thick, folded, embossed) while maintaining effective separation through friction-driven rotation of the rollers.
3Ease of manufacture
If a fixed separation mechanism is used, then the device is simple to manufacture, but it cannot handle various document types without causing offset or scratching
Solution Approach 1:
The patent implements a relatively simple dynamic adjustment mechanism where the connecting element can slide along a guiding slot. This dynamic feature allows the separation distance to be adjusted for different document types, significantly improving scanning quality and preventing document damage, while the overall structure remains simple enough for easy manufacturing.
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
Ensures smooth passage of documents through the rollers, preventing damage by dynamically adjusting the distance between the separating and retard rollers, thereby enhancing the scanning process for various document types.
Implementation Method 1
The separating rollers are mounted to the image scanning equipment under the retard rollers and drive the retard rollers to rotate by friction
Data Source
AI summary
A separation function releasing mechanism includes a frame defining two activating slots at two opposite sides, a separating mechanism which includes a bracket pivoted to the frame and a group of retard rollers rotatably mounted to the frame, a group of separating rollers located under the retard rollers, and a pushing mechanism which includes a connecting element mounted in one side of the frame and capable of sliding forward and backward. Two opposite sides of the bracket protrude outward to form a pair of activating columns slidably located in the activating slots with the distal ends projecting outward out of the activating slots. A top face of a rear of the connecting element is defined as a slantwise pushing plane and a horizontal blocking plane in front of the pushing plane which are located under and in front of the activating column to work closely with the activating column.