Sheet Feeding Device Angle Adjustment for Discharge Reliability
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Solution Overview
Problem
Sheet feeding devices face discharge failures due to changes in the relative positions of the sheet bundle and discharge assembly as the sheet bundle thickness decreases, leading to displacement of the uppermost sheet away from the discharge assembly.
Innovation Solution
The sheet feeding device includes a storage, a discharger, an angle adjuster, and an urging body that adjusts the position of the sheet bundle to maintain contact between the uppermost sheet and the discharge assembly by changing the angle of the storage space and urging the sheet bundle towards the discharge assembly as the remaining sheets decrease, preventing displacement and ensuring continuous sheet discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the sheet bundle thickness decreases during discharge, then the storage space becomes emptier, but the relative position between the sheet bundle and discharge assembly changes causing the uppermost sheet to displace away from the discharge assembly
Solution Approach 1:
The storage space is designed to rotate about a rotation axis, changing its inclination angle dynamically as sheets are discharged. This dynamic adjustment maintains the uppermost sheet's contact with the discharge assembly despite the decreasing sheet bundle thickness, preventing displacement and ensuring reliable discharge throughout the entire discharge process.
Solution Approach 2:
The inclination angle of the storage space is changed as a parameter to adapt to the decreasing sheet bundle thickness. By adjusting the angle according to the remaining sheet amount, the system maintains optimal contact between the uppermost sheet and discharge assembly, resolving the positional displacement issue that would otherwise occur.
2Device complexity
If the storage space is fixed in position, then the structure is simpler, but the uppermost sheet displaces away from the discharge assembly as the sheet bundle thickness decreases
Solution Approach 1:
The storage space is designed to rotate about a rotation axis, changing its inclination angle dynamically as sheets are discharged. This dynamic adjustment maintains the uppermost sheet's contact with the discharge assembly despite the decreasing sheet bundle thickness, preventing displacement and ensuring reliable discharge throughout the entire discharge process.
3Device complexity
If the discharge assembly contacts the uppermost sheet directly without angle adjustment, then the mechanism is simpler, but discharge failures occur when the sheet bundle becomes thin
Solution Approach 1:
The storage space is designed to rotate about a rotation axis, changing its inclination angle dynamically as sheets are discharged. This dynamic adjustment maintains the uppermost sheet's contact with the discharge assembly despite the decreasing sheet bundle thickness, preventing displacement and ensuring reliable discharge throughout the entire discharge process.
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
This configuration ensures that the uppermost sheet remains in contact with the discharge assembly from full to empty sheet bundles, preventing discharge failures and maintaining consistent sheet conveyance.
Implementation Method 1
an urging body that applies an elastic force to a trailing end of the uppermost sheet in stages according to a remaining amount
Implementation Method 2
an angle adjuster that changes an angle according to a remaining amount of the sheet bundle in the storage
Data Source
AI summary
A sheet feeding device includes a storage, a discharger, an angle adjuster, and an urging body. The storage stores a sheet bundle. The discharger contacts and discharge an uppermost sheet of the sheet bundle from the storage in a sheet conveying direction in which the uppermost sheet is conveyed. The angle adjuster changes an angle according to a remaining amount of the sheet bundle in the storage. The urging body urges a trailing end of the uppermost sheet in the sheet conveying direction toward the discharger in stages according to the remaining amount.