Coin Dispensing Device with 120-Degree Payout Disc
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Solution Overview
Problem
Existing coin payout devices require complex kinematics and result in slower operation and reduced service life due to the need for extensive equipment and 360° rotation mechanisms.
Innovation Solution
A payout device with a payout element that supports the coin column in the end position, allowing for a 120° rotation angle, eliminating the need for complex raising and lowering mechanisms and using a conventional DC motor with sensor markings for precise control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a 360° rotation mechanism is used for the payout disc, then the payout element can return to the rest position below the coin tube, but the payout process becomes slower and the device complexity increases
Solution Approach 1:
The payout disc only rotates 120° instead of the conventional 360°, performing just enough rotation to complete the payout function and return to rest position, thereby increasing payout speed while maintaining operational effectiveness
2Stability of the object's composition
If the payout element is raised and lowered using complex kinematics, then the coin column can be supported during payout, but the device complexity increases and service life decreases
Solution Approach 1:
The complex kinematic mechanisms for raising and lowering the payout element are completely removed from the system. Instead, the payout element is fixed on the payout disc, and the disc's rotation itself provides the necessary positioning and support functions
Solution Approach 2:
The payout element's position is dynamically determined by the rotation angle of the payout disc rather than by separate raising and lowering mechanisms, simplifying the overall system while maintaining coin column support capability
3Ease of operation
If the payout disc rotates 180° or 360°, then the payout element can reach the rest position, but the wear and tear on the device increases
Solution Approach 1:
The payout disc performs only the minimum necessary 120° rotation to complete the payout cycle and return to rest position, reducing the cumulative wear and tear on mechanical components while maintaining full operational capability
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
Significantly faster payout process and increased service life by reducing wear and tear, with a simplified design that maintains coin column support during payout.
Implementation Method 1
a conventional, simple DC motor is therefore used
Implementation Method 2
If the payout disc is not stopped in time, it will be decelerated with a spring. The spring effect ensures that the drive motor or the gearbox is not damaged by excessive braking.
Data Source
AI summary
The device has a disbursing element (54) movable in a base of a coin tube during angular rotation of a disbursing disk (20) along a curved slot in order to detect and push the lower coin. An electrical drive motor has a control device for controlling the drive motor such that the disbursing disk is twisted from a resting position to an end position around a defined rotation angle and afterwards turned back to the resting position. The disbursing element has an extension in rotation direction, and a coin support rests on the disbursing element in the end position of the disbursing disk.