Transport Mechanism Trigger Component for Flexible Object Deviation Detection
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Solution Overview
Problem
Existing transport mechanisms for flexible objects in peripheral devices, such as scanners and printers, fail to detect deviations from the transport path effectively, leading to paper jams and mechanical malfunctions due to the inability to timely stop the transport rollers when objects are warped, folded, or spilt.
Innovation Solution
A transport mechanism comprising a tray with transport rollers, a detector, and a trigger component, where the detector sends an abnormal signal to a processor to stop the rollers when the object deviates from the path, preventing further damage and malfunction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a detector is added to detect deviations of flexible objects from the transport path, then the reliability of the transport mechanism is improved, but the device complexity increases
Solution Approach 1:
A trigger component is introduced as an intermediary between the flexible object and the detector. The trigger component includes a pressed portion that contacts the flexible object and a moving portion that moves in response to pressing, thereby triggering the detector. This intermediary structure enables reliable detection of deviations while maintaining a relatively simple overall device structure.
2Reliability
If the transport roller stops immediately when an abnormal condition is detected, then the mechanical damage is reduced, but the productivity decreases due to frequent stopping
Solution Approach 1:
The system implements feedback control where the detector continuously monitors the position of the flexible object during transport. When a deviation is detected, the processor receives the abnormal signal and immediately controls the transport roller to stop. This feedback mechanism ensures timely response to abnormal conditions, preventing mechanical damage while maintaining high productivity during normal operation.
3Measurement precision
If the trigger component is positioned close to the flexible object to improve detection sensitivity, then the measurement precision is improved, but the ease of operation worsens due to increased sensitivity to normal variations
Solution Approach 1:
The trigger component is designed with differentiated local properties: the pressed portion has a specific contact area and stiffness that allows it to respond only to significant deviations, while the moving portion has a travel distance calibrated to trigger the detector only when pressed beyond a certain threshold. This local quality differentiation enables the system to maintain high detection sensitivity for actual abnormalities while ignoring normal variations during operation.
Data Source
AI summary
A transport mechanism for a peripheral device and an operating method including the same are provided. The transport mechanism includes a tray, at least a transport roller, a detector, a trigger component and a processor. The tray includes an opening extending through the tray. The transport roller is rotatably installed in the opening and protruded from the tray to transport a flexible object to move along a transport path. The detector near the tray has a detecting area. The trigger component is located in the opening and spaced apart from the flexible object on the transport path. The flexible object deviated from the transport path presses the trigger component to enter or leave the detecting area and triggers the detector to transmit an abnormal detecting signal. The processor receives the abnormal detecting signal to stop the transport roller.