Feeding Roller Floating Coupler Angular Displacement
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Solution Overview
Problem
Conventional feeding roller structures in Automatic Document Feeder devices fail to maintain smooth contact with paper when it is fed horizontally, leading to uneven feeding forces and premature wear due to single-sided abrasion.
Innovation Solution
A feeding roller structure featuring a fastening frame, a transmission component with a drive shaft, and a floating coupler that compensates for angular displacement between the hub and the drive shaft, allowing for radial and angular movement to maintain contact with the paper, even when it is stacked unevenly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional fixation roller structure is used, then the structure is simple and stable, but it cannot maintain smooth contact with paper when paper fails to be fed horizontally, causing uneven feeding forces and single-sided abrasion
Solution Approach 1:
The hub is designed to rotate not only around the axial direction but also allow radial oscillations and angular displacements. This dynamic capability enables the feeding roller to adapt to paper feeding angle variations while maintaining contact, resolving the contradiction between adaptability and structural simplicity.
2Duration of action of stationary object
If the hub is rigidly fixed to the drive shaft, then the structure is simple, but the feeding roller cannot compensate for angular displacement, leading to single-sided abrasion and shortened life
Solution Approach 1:
The coupling structure between hub and drive shaft is designed to allow radial oscillations and angular displacements while transmitting torque. This dynamic coupling enables the feeding roller to compensate for angle variations and maintain even contact, preventing single-sided abrasion and extending roller life.
Solution Approach 2:
The coupling structure changes the operational parameters of the hub by allowing it to oscillate radially and displace angularly relative to the drive shaft. This parameter change enables the feeding roller to adapt to varying paper feeding conditions, reducing wear and extending service life.
Data Source
AI summary
A feeding roller structure includes a fastening frame, a transmission component, a transmission roller and a floating coupler. The transmission component is assembled in the fastening frame. The transmission component includes a drive shaft mounted on two sides of the fastening frame. The transmission roller is concentrically arranged around the drive shaft. The floating coupler is mounted to the fastening frame. The floating coupler is coupled between the drive shaft and the transmission roller. Two opposite ends of the floating coupler are adjacent to and spaced from the two sides of the fastening frame to form two gaps. Each gap is formed between one end of the floating coupler and one side of the fastening frame. The two gaps limit an angular displacement of the floating coupler.