Sheet Conveying Device Separation Pad Cleaning Mechanism
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Solution Overview
Problem
Existing sheet conveying devices face challenges in efficiently cleaning the friction surface of separation pads, which affects stable sheet conveyance due to the lack of effective mechanisms for maintaining the cleanliness of these surfaces.
Innovation Solution
A sheet conveying device is designed with a holding member that moves between a close and distant position, allowing the separation pad to be pressed against a roller for sheet separation and then retracted to facilitate cleaning by reducing the pressing force on the pad, enabling easy access for cleaning without interference from cleaning tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the separation pad is pressed against the roller to ensure proper sheet separation, then sheet conveyance stability is improved, but cleaning workability deteriorates due to interference from cleaning tools
Solution Approach 1:
The pressing mechanism is designed to dynamically adjust the pressing force applied to the separation pad. During normal operation, the pad is pressed against the roller to ensure stable sheet separation. During cleaning, the pressing force is reduced or released, allowing cleaning tools to access the friction surface without interference, thus resolving the contradiction between maintaining conveyance stability and enabling effective cleaning
2Reliability
If the holding member is kept in the close position to maintain pressing force, then sheet separation performance is improved, but cleaning access deteriorates
Solution Approach 1:
The holding member operates periodically, switching between close and distant positions. During sheet conveyance, it remains in the close position to maintain pressing force and separation performance. During cleaning operations, it moves to the distant position to provide unobstructed access to the separation pad's friction surface, thus enabling both high-performance separation and effective cleaning at different time intervals
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 improves the workability and efficiency of cleaning the separation pad, preventing jamming and ensuring stable sheet conveyance by allowing for easy removal of document sheets and efficient cleaning of the pad, thus enhancing the overall performance of the sheet conveying device.
Implementation Method 1
a friction surface of the separation pad so that the sheet conveying device can perform stable sheet conveyance. The friction surface of the separation pad is brought into contact with a sheet so as to apply conveyance resistance to the sheet.
Implementation Method 2
a pressing mechanism disposed on an opposite side of the separation pad from the roller and configured to press the separation pad against the roller
Data Source
AI summary
A holding member holds a separation pad configured to separate sheets conveyed by a roller one by one, and a roller pressing member. A pressing mechanism is disposed on an opposite side of the separation pad from the roller. The holding member is configured to move relative to the roller between a distant position and a close position in which the holding member is closer to the roller than in the distant position. The pressing mechanism is configured to press the separation pad against the roller when the holding member is in the close position. When the holding member is in the distant position, at least a roller contacting portion of the roller pressing member is retracted from a first surface of the separation pad in a direction away from the roller. The first surface of the separation pad faces the roller.