Paper Pressing Mechanism for Sheet Medium Separation
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Solution Overview
Problem
Conventional sheet-type medium accumulating and separating devices face issues with insufficient pressure and friction between the paper kicking roller and sheet-type media, leading to failed separation and output when few media are present.
Innovation Solution
A sheet-type medium accumulating and separating device with a paper pressing mechanism, including a paper pressing plate and driving assembly, that moves between positions to increase pressure between the paper kicking roller and sheet-type media, ensuring sufficient friction for normal separation and output, even with few media.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional paper kicking mechanism is used without additional pressing means, then the device structure remains simple, but the friction between the paper kicking roller and sheet-type media becomes insufficient when few media are present, causing separation failure
Solution Approach 1:
A paper pressing plate is introduced as an intermediary component between the paper stack and the paper kicking roller. This pressing plate transfers and concentrates the pressing force onto the sheet-type media, ensuring sufficient friction is generated at the contact point between the media and the kicking roller, thereby enabling reliable separation even when few sheets remain in the stack.
Solution Approach 2:
The pressing force parameter is dynamically adjusted by moving the paper pressing plate between a first position (adjacent to the paper outlet) where it presses the media against the kicking roller, and a second position (adjacent to the paper inlet) where it allows media to be stacked. This positional parameter change ensures optimal friction conditions during separation while maintaining simple device structure.
2Productivity
If the paper supporting plate is positioned far from the guide plate during output, then media can be discharged, but the pressure between the paper kicking roller and media becomes small, insufficient for separation
Solution Approach 1:
The paper pressing plate serves as a force transmission intermediary that bridges the gap between the paper stack and the kicking roller. Even when the paper supporting plate is positioned far from the guide plate to enable output, the pressing plate maintains adequate contact pressure on the media, ensuring the kicking roller generates sufficient friction for effective separation.
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
Ensures smooth separation and output of sheet-type media by maintaining sufficient friction between the paper kicking roller and media, preventing failed outputs due to low media quantities.
Implementation Method 1
the pressure between the paper kicking roller and the sheet-type media becomes small, and the friction between the paper kicking roller and the sheet-type media is insufficient
Data Source
AI summary
A sheet-type medium accumulating and separating device includes a frame and a paper pressing mechanism. The frame is provided with an storage cavity for accommodating sheet-type media. The storage cavity is provided with a paper inlet, a paper outlet, and a paper kicking roller. A paper supporting plate for supporting the media is further provided in the storage cavity. The paper pressing mechanism includes a paper pressing plate and a driving assembly. The paper pressing plate is provided with a first position and a second position arranged in the direction of stacking. The paper pressing plate includes a paper pressing part arranged within the storage cavity. The driving assembly is in transmission connection with the paper pressing plate. When the paper pressing plate is in the first position, the paper pressing part is adjacent to the paper outlet, to press the sheet-type media towards the paper kicking roller.