Sheet Feeder Air Blower Tray Elevator Automation
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Solution Overview
Problem
Existing sheet feeders require manual sheet separation before loading, and subsequent reloading after separation, which is inefficient.
Innovation Solution
A sheet feeder with a sheet loading tray, an air blower, a side air blower, and processing circuitry that lifts the tray to an upper limit position, blows air to separate sheets, and then lowers the tray to an intermediate position for optimal sheet alignment and loading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If sheets are manually separated before loading and reloading is performed after separation, then sheet separation can be achieved, but operation time and productivity are reduced
Solution Approach 1:
The sheet feeder performs sheet separation automatically using air blowers integrated into the device. The control unit activates air blowers to blow air between stacked sheets, causing them to separate without external intervention. This self-service approach eliminates the need for manual separation operations and subsequent reloading.
Solution Approach 2:
The sheet separation process is performed preliminarily within the sheet feeder before sheets are fed to the image forming apparatus. By separating sheets in advance using air flow, the system ensures sheets are properly separated and positioned before actual feeding occurs, preventing feeding errors and eliminating the need for post-separation reloading.
2Extent of automation
If external sheet separating devices are used, then sheet separation can be performed, but device complexity increases
Solution Approach 1:
The sheet separation function is merged with the sheet feeder by integrating air blowers and control units into the existing sheet feeder structure. This combination eliminates the need for separate external sheet separating devices, reducing overall system complexity while maintaining automated sheet separation capability.
Solution Approach 2:
The sheet feeder is designed to perform multiple functions: it not only feeds sheets but also separates them using integrated air blowers. This multi-functional design allows a single device to handle both sheet separation and feeding tasks, replacing the need for multiple specialized devices.
3Productivity
If sheets are separated externally before loading, then separation is achieved, but loading efficiency decreases
Solution Approach 1:
The sheet feeder automatically performs sheet separation using integrated air blowers controlled by a control unit. This self-service mechanism eliminates the need for manual separation operations, allowing sheets to be separated automatically as they are loaded, thereby maintaining high loading efficiency without requiring separate manual separation steps.
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
Automates sheet separation and alignment within the sheet feeder, eliminating the need for external separation devices and optimizing sheet loading efficiency.
Implementation Method 1
The air blower is disposed to face a leading end of the sheets in a feeding direction of the sheets loaded on the sheet loading tray. The air blower to blow air to the sheets to float and separate the sheets.
Implementation Method 2
The side air blower is disposed to face an end of the sheets in a direction orthogonal to the feeding direction of the sheets. The side air blower to blow air to the sheets to separate the sheets.
Data Source
AI summary
A sheet feeder includes a sheet loading tray, an air blower, a side air blower, and processing circuitry. The sheet loading tray loads sheets. The air blower blows air to the sheets to float and separate the sheets. The side air blower blows air to the sheets to separate the sheets. The processing circuitry controls a tray elevator to rise the sheet loading tray to move the sheets to an upper limit position, after a predetermined time has elapsed from a time when the sheets are loaded on the sheet loading tray. The processing circuitry causes the air blower and the side air blower to blow air to the sheets to perform sheet separation and controls the tray elevator to lower the sheet loading tray to a position at which an intermediate remaining-sheet sensor is disposed, after the sheet separation ends.