Coin dispenser counting device

Abstract

The present invention relates to the technical field of counting devices, specifically a coin dispenser counting device, comprising a bottom plate absolute value encoder circuit board and a coin dispensing paddle, a circuit board bracket fixedly mounted on the upper surface of the bottom plate, an absolute value encoder circuit board provided on the upper surface of the circuit board bracket, a return spring provided on the upper surface of the bottom plate, a coin dispensing paddle rotatably connected to the upper surface of the bottom plate, and a magnet provided on the lower surface of the circuit board bracket. In the present invention, by providing the absolute value encoder circuit board, the return spring, the coin dispensing paddle and other structures, the absolute value encoder can monitor every detail of the paddle action. When the details change, it means that the coin dispensing process has changed. Based on this, it can not only determine whether the coin is being dispensed, but also determine some mechanical faults. Regardless of the angle of the paddle, the absolute value encoder can read its actual position, so it can determine whether it is the starting position and whether the coin is stuck. When the absolute value encoder is damaged or the wiring contact is poor, the angle cannot be read.

Description

Technical Field

[0001] The present invention relates to the technical field of counting devices, in particular to a coin dispenser counting device. Background Art

[0002] A coin dispenser is a device used to automatically dispense coins. It's commonly used in places like vending machines, gaming machines, and public transportation ticketing systems to accept banknotes or coins inserted by users and automatically dispense a corresponding number of coins as change or exchange based on set rules and denominations. Traditional coin dispenser counting devices use photoelectric switches for counting. During use, because the photoelectric switches can't handle coins of different sizes simultaneously, they can easily cause timing confusion, resulting in missed or overcounted counts. This can lead to inaccurate coin dispense values, forcing users to adjust the machine based on coin size, which in turn makes the machine unusable for coins of varying sizes. Furthermore, damage or poor contact of the photoelectric switches often occur, causing the dispenser to dispense more coins than it actually counts, necessitating improvements. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a coin dispenser counting device.

[0004] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a coin dispenser counting device, including a base plate absolute value encoder circuit board and a coin dispensing pick, the upper surface of the base plate is fixedly installed with a circuit board bracket, the upper surface of the circuit board bracket is provided with an absolute value encoder circuit board, the upper surface of the base plate is provided with a base plate spring, the upper surface of the base plate is provided with a return spring, the upper surface of the base plate is rotatably connected to the coin dispensing pick, the upper surface of the base plate is fixedly installed with a pick rebound buffer pad, the lower surface of the circuit board bracket is provided with a magnet, and the axis center of the coin dispensing pick is installed with a magnet bracket.

[0005] Preferably, the absolute value encoder circuit board and the base plate are connected via a circuit board bracket in order to fix the absolute value encoder circuit board on the upper surface of the base plate.

[0006] Preferably, the upper surface of the base plate is provided with a shaft sleeve, and the coin-dispensing paddle and the base plate are connected via the shaft sleeve. Here, in order to sleeve the coin-dispensing paddle on the outer surface of the shaft sleeve.

[0007] Preferably, a return spring fixing post is fixedly installed on the upper surface of the base plate, and the return spring and the base plate are connected via the return spring fixing post. Here, in order to fix the return spring.

[0008] Preferably, the magnet bracket and the coin-dispensing strip are connected via a shaft sleeve, and the magnet bracket is sleeved on the outer surface of the shaft sleeve of the coin-dispensing strip. Here, in order to arrange the magnet on the upper surface of the magnet bracket.

[0009] Preferably, the material of the magnet bracket is plastic material, and the magnet bracket is designed to be open. Here, in order to facilitate the fixing of the magnet.

[0010] Preferably, the magnet bracket and the coin-dispensing pick are fixed by glue. Here, in order to prevent the coin-dispensing pick from vibrating, loosening or falling off.

[0011] Preferably, the magnet and the magnet bracket are fixed by glue. Here, in order to prevent the magnet from vibrating, loosening or falling off.

[0012] Preferably, an encoder chip is provided on the upper surface of the absolute encoder circuit board, and the encoder chip coincides with the axis of the magnet. Here, in order to improve the counting effect of the absolute encoder circuit board.

[0013] Preferably, the material of the circuit board bracket is plastic material, and the surface of the coin-dispensing paddle is fixedly mounted with a bearing. Here, for convenience, the circuit board bracket is fixed to the upper surface of the base plate.

[0014] Compared with the prior art, the advantages and positive effects of the present invention are:

[0015] In the present invention, by setting the absolute value encoder circuit board, pull-back spring and coin-dispensing paddle and other structures, in order to make the counting device more accurate during use, this technical device is designed with a special driving structure. The absolute value encoder can monitor every detail of the paddle action. When the details change, it means that the coin-dispensing process has changed. Based on this, it can not only determine whether the coin is dispensed but also judge some mechanical faults. Regardless of the angle of the paddle, the absolute value encoder can read its actual position, so it can judge whether it is the starting position and whether the coin is stuck, etc. When the absolute value encoder is damaged or the wiring contact is poor, the angle cannot be read. Based on this, the motor can be prevented from starting, so the coin will not be dispensed randomly. When the coin size is determined, the coin-dispensing angle can be determined, and the paddle return time is also determined. When a mechanical abnormality occurs, the coin-dispensing angle waveform will change. Based on these changes, it is easy to judge the mechanical fault. Such a design can solve the problems existing in the counting device using photoelectric switches, thereby improving the accuracy of the counting device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention provides a schematic diagram of the overall structure of a coin dispenser counting device;

[0017] Figure 2The present invention provides an exploded view of a coin dispenser counting device.

[0018] Legend:

[0019] 1. Base plate; 2. Circuit board bracket; 3. Magnet bracket; 4. Magnet; 5. Absolute encoder circuit board; 6. Retraction spring; 7. Coin pick; 8. Base plate spring; 9. Retraction spring fixing column; 10. Pick rebound buffer pad. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] In the description of the present invention, it should be understood that the terms "length," "width," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inside," "outside," and the like, indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, in the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

[0022] See also Figure 1 and Figure 2 The present invention provides a technical solution: a coin dispenser counting device, comprising a bottom plate 1, an absolute value encoder circuit board 5 and a coin dispensing paddle 7, a circuit board bracket 2 is fixedly mounted on the upper surface of the bottom plate 1, an absolute value encoder circuit board 5 is arranged on the upper surface of the circuit board bracket 2, a bottom plate spring 8 is arranged on the upper surface of the bottom plate 1, a return spring 6 is arranged on the upper surface of the bottom plate 1, a coin dispensing paddle 7 is rotatably connected to the upper surface of the bottom plate 1, a paddle rebound buffer pad 10 is fixedly mounted on the upper surface of the bottom plate 1, a magnet 4 is arranged on the lower surface of the circuit board bracket 2, and a magnet bracket 3 is installed at the axis center of the coin dispensing paddle 7, the absolute value encoder can monitor every detail of the paddle movement, when the details change, it means that the coin dispensing process has changed, based on which some mechanical faults can be judged, no matter what angle the paddle is at, the absolute value encoder can read its actual position, so it can be judged whether it is the starting position and whether the coin is stuck, etc., when the absolute value encoder is damaged or the wiring contact is poor, the angle cannot be read, based on which the motor can be prevented from starting, so that coins will not be dispensed randomly.

[0023] See also Figure 1 and Figure 2The absolute encoder circuit board 5 and the base plate 1 are connected through the circuit board bracket 2, the upper surface of the base plate 1 is provided with a shaft sleeve, the coin pick 7 and the base plate 1 are connected through the shaft sleeve, the upper surface of the base plate 1 is fixedly installed with a pull-back spring spring fixing column 9, the pull-back spring 6 and the base plate 1 are connected through the pull-back spring spring fixing column 9, the magnet bracket 3 and the coin pick 7 are connected through the shaft sleeve, the magnet bracket 3 is sleeved on the outer surface of the shaft sleeve of the coin pick 7, the material of the magnet bracket 3 is plastic material, the magnet bracket 3 is an open design, the magnet bracket 3 and the coin pick 7 are fixed by glue, the magnet 4 and the magnet The iron brackets 3 are fixed by glue, and an encoder chip is provided on the upper surface of the absolute encoder circuit board 5. The encoder chip coincides with the axis of the magnet 4. The material of the circuit board bracket 2 is plastic. The surface of the coin-dispensing paddle 7 is fixedly installed with a bearing. When the coin size is determined, the coin-dispensing angle can be determined, and the paddle return time is also determined. When a mechanical abnormality occurs, the coin-dispensing angle waveform will change. According to these changes, it is easy to judge the mechanical failure. Such a design can solve the problems existing in the counting device using photoelectric switches, thereby improving the accuracy of the counting device during use.

[0024] Working principle: During the coin dispensing process, the coin dispenser motor pushes the coin toward the coin outlet. In the process of squeezing out the coin, it will drive the coin dispensing pick to rotate, and the magnet is fixed to the axis of the coin dispensing pick and rotates with the pick. Therefore, the rotation of the magnet represents the rotation of the pick. The absolute encoder above the magnet can read the angle of the pick at each moment of rotation. Based on this angle change process, it can be inferred whether the coin is being dispensed or some mechanical abnormalities occur. The coin dispensing process: initial position (idle), the pick is at the end, and the initial angle of the absolute encoder is recorded. In order to confirm that it is the initial angle, the motor is reversed first. If the pick is not in the initial position, it will return to the initial position; then the motor runs to drive the coin to be squeezed out, the pick rotates to the left, and the angle of the absolute encoder changes; then the coin reaches the critical value and continues to rotate, the coin is squeezed out, and the pick rebounds; finally, the pick returns to the rightmost side under the pull of the spring and hits the rightmost buffer pad. Then it rebounds naturally in the opposite direction and finally returns to the initial position (idle). During the coin dispensing process, the coin dispensing parameters are determined: starting angle, coin dispensing angle, coin extrusion time, and paddle return time: first, reverse the coin dispenser, move the paddle to the rightmost side, and record the absolute encoder angle as the starting angle; when the coin begins to be squeezed out, the paddle moves to the left, the absolute encoder angle changes, and the coin extrusion angular velocity is recorded; when the coin is squeezed out to the critical point, the extrusion angular velocity becomes 0, and the coin dispensing angle and coin dispensing time point are recorded, and the diameter and coin dispensing time of the coin can be calculated; the coin is squeezed out and the paddle returns; when the retraction speed is > xx, it is considered as retraction, and the retraction start time point is recorded. If the retraction time point is significantly different from the coin dispensing time point, it is considered that there is a problem with the retraction spring; the paddle retracts to the buffer pad, rebounds, and finally stops. At this time, the paddle angular velocity = 0, and the paddle is considered to have returned to zero position. This time is re-recorded as the starting angle, and the coin dispensing count is increased by 1.

[0025] The above are merely preferred embodiments of the present invention and do not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A coin dispenser counting device, comprising a base plate (1), an absolute value encoder circuit board (5) and a coin dispensing paddle (7), characterized in that: A circuit board bracket (2) is fixedly mounted on the upper surface of the base plate (1), an absolute value encoder circuit board (5) is provided on the upper surface of the circuit board bracket (2), a base plate spring (8) is provided on the upper surface of the base plate (1), a pull-back spring (6) is provided on the upper surface of the base plate (1), a coin-dispensing paddle (7) is rotatably connected to the upper surface of the base plate (1), a paddle rebound buffer pad (10) is fixedly mounted on the upper surface of the base plate (1), a magnet (4) is provided on the lower surface of the circuit board bracket (2), a magnet bracket (3) is installed on the axis center of the coin-dispensing paddle (7), and the absolute value encoder circuit board (5) is provided on the upper surface of the base plate (1). The encoder circuit board (5) and the base plate (1) are connected via a circuit board bracket (2); the upper surface of the base plate (1) is provided with a shaft sleeve; the coin dispensing paddle (7) and the base plate (1) are connected via the shaft sleeve; the upper surface of the absolute value encoder circuit board (5) is provided with an encoder chip; the encoder chip coincides with the axis of the magnet (4); the absolute value encoder above the magnet can read the angle of the paddle at each moment of rotation; based on the angle change process, it can be inferred whether a coin is dispensed or some mechanical abnormality occurs; during the coin dispensing process, the coin dispensing parameters are determined: the starting angle, the coin dispensing angle, the coin extrusion time, and the paddle return time.

2. The coin dispenser counting device according to claim 1, characterized in that: A return spring fixing column (9) is fixedly mounted on the upper surface of the base plate (1), and the return spring (6) and the base plate (1) are connected via the return spring fixing column (9).

3. The coin dispenser counting device according to claim 1, characterized in that: The magnet bracket (3) and the coin dispensing plate (7) are connected via a shaft sleeve, and the magnet bracket (3) is sleeved on the outer surface of the shaft sleeve of the coin dispensing plate (7).

4. The coin dispenser counting device according to claim 1, characterized in that: The material of the magnet bracket (3) is plastic material, and the magnet bracket (3) is an open design.

5. The coin dispenser counting device according to claim 1, characterized in that: The magnet bracket (3) and the coin dispensing pick (7) are fixed by glue.

6. The coin dispenser counting device according to claim 1, characterized in that: The magnet (4) and the magnet bracket (3) are fixed by glue.

7. The coin dispenser counting device according to claim 1, characterized in that: The material of the circuit board bracket (2) is plastic material, and a bearing is fixedly installed on the surface of the coin-dispensing paddle (7).

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