Paper-sheet Processing Apparatus Standby Power Control
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Solution Overview
Problem
The existing paper-sheet processing apparatuses face challenges in power saving as turning off the power supply to the motor driving the backup causes the backup to shift, necessitating a complex recovery operation when resuming normal mode, which involves restacking paper sheets.
Innovation Solution
The apparatus incorporates a mode setting unit that suspends power supply to certain operational parts during standby mode while maintaining power to the backup motor, using a fixing unit to secure the backup's position, allowing for immediate restart without re-stacking paper sheets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the power supply to the backup motor is turned off during standby mode, then power saving is achieved, but the backup position shifts requiring complex recovery operations
Solution Approach 1:
The backup motor is maintained in a ready state with power supply during standby mode, performing preliminary action to prevent position shift before it occurs. This allows the backup to remain positioned without requiring complex recovery operations when normal mode resumes, while still achieving power saving by suspending power to other operational parts.
2Loss of energy
If the power supply to operational parts is suspended during standby mode, then power saving is achieved, but the apparatus cannot immediately resume normal operation
Solution Approach 1:
The power supply system is segmented into multiple parts: operational parts (pickup unit, inspection unit, banding unit) have power suspended during standby, while the backup motor receives continued power to maintain position. This selective segmentation allows power saving while preventing position shift, enabling immediate resume capability without the time loss associated with full system shutdown and recovery operations.
Data Source
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AI summary
According to one embodiment, a paper-sheet processing apparatus includes a feed unit (11), a pickup unit (14), an inspection unit (18), a stacking unit (66), a backup drive unit, a banding unit (68), at least one power supply, a mode setting unit, and a fixing unit. At least one power supply supplies electric power to electrically operational parts of the extraction unit, inspection unit, stacking unit, backup drive unit, and a banding unit. The mode setting unit sets a standby mode in which electric power supply to at least one of the electrically operational parts is suspended temporarily. While the standby mode is set by the mode setting unit, the fixing unit fixes the backup to a position for setting of the standby mode.