Deflecting Device for High-Speed Sheet Conveyance
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Solution Overview
Problem
Existing sheet handling systems in printers and copiers face inefficiencies due to the need for a short distance between leading and following sheets to maintain high productivity, which is not effectively managed by current deflecting devices.
Innovation Solution
A deflecting device with a movable deflector that inserts into the passing area during the receiving position and retracts before the deflected sheet has fully passed, allowing the next sheet to follow closely while maintaining minimal distance and high efficiency, and moves at a speed to ensure smooth operation and quick positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the deflector remains stationary or moves slowly, then the sheet can be reliably deflected, but the distance between leading and following sheets increases, reducing productivity
Solution Approach 1:
The deflector is transformed from a stationary or slow-moving component to a dynamically positioned element that moves at high speed into the passing area. This dynamic positioning allows the deflector to quickly clear the path for following sheets while maintaining reliable deflection of the leading sheet, thereby reducing the distance between sheets and improving productivity.
Solution Approach 2:
The deflector is positioned in advance into the passing area before the following sheet arrives. This preliminary action ensures that the deflector is already in place to guide the following sheet smoothly, preventing any delay or increase in the distance between sheets, thus maintaining high productivity.
2Productivity
If the deflector moves quickly into position, then the distance between sheets is reduced, but the impact on the deflector increases
Solution Approach 1:
The deflector utilizes a curved trajectory to enter and exit the passing area, rather than moving in a straight line. This curved path allows the deflector to change direction smoothly, reducing sudden impacts and forces on the deflector mechanism while maintaining high-speed operation for improved productivity.
Solution Approach 2:
The system incorporates cushioning mechanisms that are activated in advance of the deflector's movement. These cushioning elements prepare the system to absorb and mitigate the impact forces that occur when the deflector quickly enters and exits the passing area, allowing high-speed operation without excessive mechanical stress.
3Manufacturing precision
If the deflector is positioned to receive the leading edge of a sheet, then deflection accuracy is improved, but the complexity of positioning control increases
Solution Approach 1:
The deflector system incorporates sensors and control mechanisms that automatically detect the presence and position of sheets, enabling the deflector to self-adjust its positioning without complex external control systems. This self-service capability maintains high deflection accuracy while minimizing the complexity of the positioning control system.
Solution Approach 2:
The system employs feedback mechanisms where sensors detect the position of sheets and provide real-time information to the deflector control system. This feedback loop allows for automatic adjustment of the deflector's position to ensure accurate deflection of the leading edge, maintaining precision without requiring overly complex manual or pre-programmed control systems.
Data Source
AI summary
A deflecting device for deflecting a conveyed sheet includes a guiding assembly having an inlet for receiving a conveyed sheet front an upstream section of a main conveying path, a primary outlet for discharging a conveyed sheet onto a downstream section of a main conveying path, a secondary outlet for discharging a conveyed sheet onto an initial section of a side conveying path, and a passing area for passing a conveyed sheet from the inlet towards the primary outlet; and a deflector for deflecting a conveyed sheet towards the secondary outlet, movable into a receiving position for receiving a leading edge of a conveyed sheet inside the passing area and movable into a discharge position for discharging a leading edge of a conveyed sheet towards the secondary outlet, wherein the deflector defines a curved trajectory for a conveyed sheet deflected towards the secondary outlet in the discharge position, wherein one side of the curved trajectory faces the primary outlet. A functional portion of the deflector is configured to be inserted into the passing area on the one side of the curved trajectory when the deflector moves into the receiving position, and to be retracted from the passing area on the one side of the curved trajectory when the deflector moves out of the discharge position.