Sheet Feeding Device with Identification Mark for Position Detection
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Solution Overview
Problem
The existing sheet feeding devices have limitations in accurately detecting the position of the sheet loading portion, which affects the accuracy of determining the remaining amount of sheets and optimizing sheet feeding operations.
Innovation Solution
The implementation of a sheet feeding device with a sheet loading table featuring an identification mark on its end face and an imaging unit that captures images of the mark, allowing for precise detection of the sheet loading table's position and remaining sheet quantity through the use of an imaging range changer mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an imaging unit is used to detect the sheet loading table position, then the measurement precision of sheet loading table position is improved, but the device complexity increases due to the need for identification marks and imaging mechanisms
Solution Approach 1:
The patent introduces an identification mark as an intermediary element between the sheet loading table and the imaging unit. This mark serves as a mediator that enables the imaging unit to detect the table's position without requiring complex direct measurement mechanisms, thus resolving the contradiction between measurement precision and device complexity
Solution Approach 2:
The patent replaces direct mechanical position detection with an optical imaging system. Instead of using mechanical sensors or switches to detect the sheet loading table position, the system uses an imaging unit to capture images of identification marks, substituting mechanical detection with optical measurement to achieve higher precision
2Measurement precision
If the imaging unit captures images of the identification mark to determine remaining sheet quantity, then the measurement precision of remaining sheet quantity is improved, but the loss of time increases due to additional imaging and processing requirements
Solution Approach 1:
The patent applies preliminary action by pre-positioning identification marks on the sheet loading table before the imaging process. This preparation allows the imaging unit to immediately capture useful information when activated, reducing the time required for detection without sacrificing measurement precision
Solution Approach 2:
The patent uses the identification mark as a copy or representation of the sheet loading table's state. By imaging the mark rather than directly measuring the sheets, the system creates an optical copy that can be quickly processed to determine sheet quantity, balancing precision with speed
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 solution enhances the accuracy of detecting the sheet loading table's position and remaining sheet quantity, improving the reliability and efficiency of sheet feeding operations by enabling precise control and optimization of sheet feeding processes.
Implementation Method 1
an imaging unit to identify the identification mark
Data Source
AI summary
A sheet feeding device includes a sheet loading table on which a bundle of sheets is stacked, an identification mark on an end face of the sheet loading table, and an imaging unit to identify the identification mark.