Bill-Separating Unit Power Transmission Simplification
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Solution Overview
Problem
Conventional bill-separating-and-stacking units have complex power-transmission structures due to separate driving units for the push plate and shutter, leading to increased complexity and potential for mechanical issues.
Innovation Solution
Integration of the push plate and shutter driving units into a single unit with a shared driving source, utilizing a first belt connected to the push plate and a second belt connected to the shutter, along with rotation-restriction mechanisms and a torque limiter to manage power transmission and prevent excessive torque.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If separate driving units are used for the push plate and shutter, then each component can be independently controlled, but the power-transmission structure becomes complex
Solution Approach 1:
The patent combines the driving units for the push plate and shutter into a single integrated driving mechanism. The driving shaft rotates to simultaneously drive both the push plate (via connecting rod and crank mechanism) and the shutter (via belt and pulley mechanism), thereby reducing structural complexity while maintaining independent control through phased rotational timing.
2Device complexity
If a single driving unit is used for the push plate and shutter, then the power-transmission structure is simplified, but the shutter position stability may be compromised
Solution Approach 1:
The patent employs dynamic position-restriction mechanisms including rotation restriction (limiting the driving shaft's rotational range to prevent the shutter from exceeding stacking/separating positions) and torque restriction (using a torque limiter to prevent excessive force from displacing the shutter). These dynamic constraints ensure position stability while allowing the simplified single driving unit to operate.
3Device complexity
If the push plate and shutter are driven by the same source, then the device structure is simplified, but mechanical damage risk increases due to potential interference
Solution Approach 1:
The patent implements preliminary protective measures including position-restriction mechanisms that prevent the shutter from moving beyond safe angular ranges, and torque-limiting devices that block excessive force transmission before damage can occur. These preemptive constraints eliminate the mechanical damage risk inherent in shared driving while maintaining structural simplification.
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 simplifies the power-transmission structure, stabilizes the operation of the shutter at stacking and separating positions, and prevents mechanical damage by ensuring the shutter maintains its positions without interference from the push plate's movement.
Implementation Method 1
a first belt which is rotated and driven by the driving motor and is connected to the push plate
Implementation Method 2
a second belt which is rotated in conjunction with the first belt and is connected to the shutter
Data Source
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AI summary
The present invention is directed to providing a bill-separating-and-stacking unit (1) with a simplified power-transmission structure by integrating driving units of a push plate (300) and a shutter (500) into a single unit. The bill-separating-and-stacking unit includes a sheet roller (150) configured hit bills (P) entering a bill-stacking space (S) with a sheet (151), which is rotated, and configured to guide the bills to be stacked, a push plate configured to perform reciprocation and support the bills which are stacked in the bill-stacking space, a shutter which is rotated in one direction to be located in a stacking position so that the sheet of the sheet roller is rotatable to an upper side of the bill-stacking space when the bills are stacked, and is rotated in a direction opposite the one direction to be located in a separating position so that the sheet is prevented from protruding to the upper side of the bill-stacking space when the bills are separated, and a push-plate-and-shutter driving unit (700) having a single driving source so that the push plate and the shutter are worked in conjunction with each other.