A card dispenser capable of controlling rotation stop by detecting a crest reflection signal

Abstract

The application discloses a card dispenser with rotation stop controlled by detecting a tooth top reflection signal, which comprises a base and a card dispenser body, a driving motor and a driving gear are installed on the card dispenser body, the base is provided with a tooth disc, the driving gear is in meshing cooperation with the tooth disc; a controller and a reflective photoelectric sensor electrically connected with the controller are further installed on the card dispenser body, the reflective photoelectric sensor is arranged on one side of the driving gear and corresponds to the tooth part of the driving gear, the reflective photoelectric sensor is used for emitting light to the tooth part movement space of the driving gear and receiving the reflected light. The reflective photoelectric sensor arranged on one side of the driving gear is matched with the driving gear, the rotation angle of the driving gear can be obtained by detecting the number of the tooth parts rotated, compared with the prior art, the gear does not need to be specially set, the positioning gear and the induction sheet can be omitted, the whole structure is simpler, and the thickness of the gear transmission structure can be thinner.

Description

Technical Field

[0001] This utility model relates to a card dealing machine, specifically to a card dealing machine that controls the rotation to stop by detecting the reflected signal from the tooth tip. Background Technology

[0002] Playing cards, as one of the most common forms of entertainment in people's lives, are loved by a wide range of people of all ages due to their diverse gameplay and suitability for all ages. However, after each game, players need to arrange, shuffle, and deal the cards themselves. To save time on dealing, various machines have emerged to replace manual card dealing, greatly improving the card game experience.

[0003] Existing card dealing machines have complex transmission mechanisms for rotation. For example, patent document CN 118304638 A discloses a rotating card dealing machine, including: a card dealing machine body and a base disposed at the bottom of the card dealing machine body and rotatable relative to the card dealing machine body; a rotary motor is disposed inside the card dealing machine body, and a rotary gear disk is disposed on the base, with the upper end of the rotary gear disk's rotating shaft rotatably connected to the bottom of the card dealing machine body; the output shaft of the rotary motor extends to the bottom of the card dealing machine body, and an output gear is disposed on the output shaft, which is poweredly connected to the rotary gear disk to drive the base to rotate relative to the card dealing machine body; a positioning gear is also disposed inside the base and meshes with the rotary gear disk or the output gear, and a rotation sensing component for detecting the rotation state of the positioning gear is disposed on the positioning gear, which is a photoelectric sensing component, including multiple sensing plates evenly disposed around the positioning gear and photoelectric sensors cooperating with the sensing plates.

[0004] The aforementioned patent documents require additional positioning gears, and also require multiple sensing plates (for use with photoelectric sensors) to be extended outwards from the circumferential position of the positioning gears. This results in an increase in the height of the card dealing machine turntable assembly and a more complex structure. Utility Model Content

[0005] This invention addresses the above-mentioned problems and overcomes at least one deficiency by proposing a card dealing machine that controls the rotation to stop by detecting the reflected signal from the tooth tip.

[0006] The technical solution adopted by this utility model is as follows:

[0007] A card dealer that controls its rotation to stop by detecting a tooth tip reflection signal includes a base and a card dealer body rotatably mounted on the base. The card dealer body is equipped with a drive motor and a drive gear driven by the drive motor. The base has a gear plate, and the drive gear meshes with the gear plate. The card dealer body is also equipped with a controller and a reflective photoelectric sensor electrically connected to the controller. The reflective photoelectric sensor is disposed on one side of the drive gear and corresponds to the teeth of the drive gear. The reflective photoelectric sensor is used to emit light into the movement space of the drive gear teeth and receive the reflected light.

[0008] This application uses a reflective photoelectric sensor set on one side of the drive gear to cooperate with the drive gear. The rotation angle of the drive gear can be obtained by detecting the number of teeth that have rotated past. Compared with the prior art, no special settings are required for the gear, and the positioning gear and sensing plate can be eliminated. The whole structure is simpler, and the thickness of the gear transmission structure can be made thinner.

[0009] The reflective photoelectric sensor mentioned in this application corresponds to the teeth of the drive gear, meaning that the reflective photoelectric sensor is located between the root and tip of the tooth.

[0010] In practical applications, more precise control can be achieved through reflective photoelectric sensors. Taking a drive gear with 56 teeth as an example, it generates two level changes every 6.4°, and the signal density is 6 times that of the traditional induction chip solution.

[0011] In practical applications, the collected reflected pulse signals can be used with existing algorithms to calculate the current rotation angle, angular velocity, and acceleration parameters based on pulse timing characteristics. This establishes a multi-parameter closed-loop control system with the target control angle as the reference. Real-time angle deviation, dynamic angular velocity difference, and acceleration change rate are input to the PID control unit for composite calculation, generating dynamic adjustments to the motor drive signal. A high-speed MCU enables millisecond-level iterative updates and feedback compensation of the rotation state parameters, forming an adaptive control loop with feedforward-feedback dual-mode regulation characteristics. Compared to traditional open-loop control schemes, this can improve the angle positioning accuracy of the rotating mechanism by five times, shorten the dynamic response time by 40%, and reduce mechanical shock during start-up and shutdown by 60%. It is particularly suitable for automated card-dealing equipment requiring precise motion control, significantly improving the stability and reliability of equipment operation.

[0012] In one embodiment of the present invention, the card dealing machine body has a mounting cavity, the drive gear and the reflective photoelectric sensor are disposed in the mounting cavity, the mounting cavity has an opening for the outer edge of the drive gear to be exposed, and the position of the reflective photoelectric sensor is offset from the opening.

[0013] This setup allows the reflective photoelectric sensor to be placed in a relatively enclosed environment, unaffected by dust or other contaminants.

[0014] In one embodiment of the present invention, the reflective photoelectric sensor is located on the side of the mounting cavity away from the opening.

[0015] In one embodiment of the present invention, the reflective photoelectric sensor has a transmitter and a receiver, both of which are located on the same side of the drive gear.

[0016] In one embodiment of this utility model, a bearing is provided between the base and the card dealing machine body, and the card dealing machine body and the bearing are rotated together through the bearing.

[0017] Existing card dealing machines have complex rotating installation structures and large assembly errors. In one embodiment of this utility model, it further includes an outer ring fixing ring, a first fastener, an inner ring fixing member, and a second fastener.

[0018] The card dealing machine body has a protrusion, and the base has a mounting groove for mounting the bearing on the side facing the card dealing machine body. The bottom of the mounting groove has a clearance opening that penetrates the base.

[0019] The bearing is mounted on the mounting groove, with the first end face of the outer ring of the bearing abutting against the bottom wall of the mounting groove, and the outer ring retaining ring abutting against the second end face of the outer ring of the bearing. The outer ring retaining ring is fixed to the base by the first fastener, thus fixing the outer ring of the bearing to the base.

[0020] The inner ring of the bearing is sleeved on the protrusion, the inner ring fixing member abuts against the end face of the inner ring of the bearing through the clearance, and the inner ring fixing member is fixed to the card dealing machine body by the second fastener, thereby fixing the inner ring of the bearing to the card dealing machine body.

[0021] This structural form is simple to assemble, has small assembly errors, and the assembled structure is relatively compact.

[0022] In one embodiment of the present invention, one of the base and the outer ring fixing ring has a first positioning post and the other has a first positioning hole, and the first positioning post and the first positioning hole cooperate with each other.

[0023] Of the protrusion and the inner ring fastener, one has a second positioning post and the other has a second positioning hole, and the second positioning post and the second positioning hole cooperate with each other.

[0024] The combination of the positioning pin and the positioning hole enables rapid positioning and limiting, making it convenient for the first and second fasteners to be inserted into the corresponding connection holes.

[0025] In one embodiment of the present invention, the card dealing machine body has a mounting cavity, the drive gear and the reflective photoelectric sensor are disposed in the mounting cavity, the mounting cavity has an opening for the outer edge of the drive gear to be exposed, and the position of the reflective photoelectric sensor is offset from the opening;

[0026] It also includes an outer ring retaining ring, a first fastener, an inner ring retaining member, and a second fastener;

[0027] The card dealing machine body has a docking groove, the bottom wall of the docking groove has a protrusion, and the mounting cavity communicates with the docking groove through the opening; the base includes an annular main body part located below, the gear plate is located above the main body part, the gear plate has a mounting groove for mounting the bearing, and the bottom of the mounting groove has a clearance opening that penetrates the base;

[0028] The bearing is mounted on the mounting groove, with the first end face of the outer ring of the bearing abutting against the bottom wall of the mounting groove, and the outer ring retaining ring abutting against the second end face of the outer ring of the bearing. The outer ring retaining ring is fixed to the base by the first fastener, thus fixing the outer ring of the bearing to the base.

[0029] The inner ring of the bearing is sleeved on the protrusion, the inner ring fixing member abuts against the inner ring end face of the bearing through the clearance, and the inner ring fixing member is fixed to the card dealing machine body by the second fastener, thereby fixing the inner ring of the bearing to the card dealing machine body.

[0030] The main body completely covers the opening of the docking groove.

[0031] The main body completely covers the opening of the docking groove, thereby reducing the amount of impurities (such as dust) that enter the mounting cavity through the docking groove. This structural form can effectively ensure the reliable operation of the reflective photoelectric sensor.

[0032] In one embodiment of the present invention, an anti-slip pad is installed at the bottom of the base, and the anti-slip pad covers the inner ring fixing member and the clearance opening.

[0033] In one embodiment of this utility model, the drive gear is made of white plastic, and the teeth of the drive gear are coated with matte black paint to enhance the contrast of reflection.

[0034] The beneficial effects of this utility model are: This application uses a reflective photoelectric sensor set on one side of the drive gear to cooperate with the drive gear. By detecting the number of teeth that have rotated past, the rotation angle of the drive gear can be obtained. Compared with the prior art, no special settings are required for the gear, and the positioning gear and sensing plate can be eliminated. The whole structure is simpler and the overall thickness can be thinner. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of a card dealing machine that stops rotating by detecting the reflected signal from the tooth tip;

[0036] Figure 2 yes Figure 1 A diagram showing the anti-slip mat after it has been hidden;

[0037] Figure 3 This is an exploded view of a card dealing machine that is controlled to stop by detecting the reflected signal from the tooth tip;

[0038] Figure 4 This is a schematic diagram from another angle of the card dealing machine that controls the rotation to stop by detecting the reflected signal from the tooth tip;

[0039] Figure 5 It is a schematic diagram of the drive motor, drive gear, controller and reflective photoelectric sensor;

[0040] Figure 6 This is a top view of a card dealing machine that stops rotating by detecting the reflected signal from the tooth tip;

[0041] Figure 7 yes Figure 6 Sectional view of AA.

[0042] The labels for the attached figures are as follows:

[0043] 1. Base; 10. Main body; 11. Gear plate; 111. Mounting groove; 112. Clearance opening; 12. First positioning post; 13. Anti-slip pad; 2. Dealer body; 21. Drive motor; 22. Drive gear; 221. Gear; 23. Controller; 231. Reflective photoelectric sensor; 2311. Transmitter head; 2312. Receiver head; 241. Mounting cavity; 2411. Opening; 242. Docking groove; 243. Protrusion; 2431. Second positioning post; 25. Bearing; 251. Outer ring of bearing; 252. Inner ring of bearing; 26. Outer ring retaining ring; 261. First positioning hole; 27. First fastener; 28. Inner ring fixing part; 281. Second positioning hole; 29. ​​Second fastener. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0046] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] The present invention will now be described in detail with reference to the accompanying drawings.

[0048] like Figures 1-7 As shown, a card dealing machine that controls the rotation of a card dealer by detecting a tooth tip reflection signal includes a base 1 and a card dealing machine body 2 rotatably mounted on the base 1. The card dealing machine body 2 is equipped with a drive motor 21 and a drive gear 22 driven by the drive motor 21. The base 1 has a gear plate 11, and the drive gear 22 meshes with the gear plate 11. The card dealing machine body 2 is also equipped with a controller 23 and a reflective photoelectric sensor 231 electrically connected to the controller 23. The reflective photoelectric sensor 231 is located on one side of the drive gear 22 and corresponds to the tooth 221 of the drive gear 22. The reflective photoelectric sensor 231 is used to emit light into the movement space of the tooth 221 of the drive gear 22 and receive the reflected light.

[0049] This application uses a reflective photoelectric sensor 231 set on one side of the drive gear 22 to cooperate with the drive gear 22. The rotation angle of the drive gear 22 can be obtained by detecting the number of teeth 221 that have rotated past. Compared with the prior art, no special settings are required for the gear, and the positioning gear and sensing plate can be eliminated. The whole structure is simpler, and the thickness of the gear transmission structure can be made thinner.

[0050] The reflective photoelectric sensor 231 mentioned in this application corresponds to the tooth 221 of the drive gear 22, meaning that the reflective photoelectric sensor 231 is located between the root and tip of the tooth 221.

[0051] In practical applications, more precise control can be achieved through the reflective photoelectric sensor 231. Taking the drive gear 22 with 56 teeth 221 as an example, it generates two level changes every 6.4°, and the signal density is 6 times that of the traditional sensing chip solution.

[0052] like Figure 3 and 7 As shown, in this embodiment, the card dealing machine body 2 has a mounting cavity 241, a drive gear 22 and a reflective photoelectric sensor 231 are disposed in the mounting cavity 241, the mounting cavity 241 has an opening 2411 for the outer edge of the drive gear 22 to be exposed, and the position of the reflective photoelectric sensor 231 is offset from the opening 2411. This arrangement allows the reflective photoelectric sensor 231 to be in a relatively closed environment, unaffected by dust or other factors.

[0053] like Figure 3 and 7 As shown, in this embodiment, the reflective photoelectric sensor 231 is located on the side of the mounting cavity 241 away from the opening 2411.

[0054] like Figure 5 As shown, in this embodiment, the reflective photoelectric sensor 231 has a transmitter 2311 and a receiver 2312, both of which are located on the same side of the drive gear 22.

[0055] In this embodiment, a bearing 25 is provided between the base 1 and the card dealing machine body 2, and the card dealing machine body 2 and the bearing 25 are rotated together through the bearing 25.

[0056] Existing card dealing machines have complex rotating installation structures and significant assembly errors. In this embodiment, as... Figure 3 , 4 As shown in Figure 7, it also includes an outer ring retaining ring 26, a first fastener 27, an inner ring retainer 28, and a second fastener 29;

[0057] The card dealing machine body 2 has a protrusion 243, and the base 1 has a mounting groove 111 for mounting a bearing 25 on the side facing the card dealing machine body 2. The bottom of the mounting groove 111 has a clearance opening 112 that penetrates the base 1.

[0058] The bearing 25 is mounted on the mounting groove 111. The first end face of the outer ring 251 of the bearing abuts against the bottom wall of the mounting groove 111. The outer ring retaining ring 26 abuts against the second end face of the outer ring 251 of the bearing. The outer ring retaining ring 26 is fixed to the base 1 by the first fastener 27, thus fixing the outer ring 251 of the bearing to the base 1.

[0059] The inner ring 252 of the bearing is sleeved on the protrusion 243. The inner ring fixing member 28 abuts against the end face of the inner ring 252 of the bearing through the relief opening 112. The inner ring fixing member 28 is fixed to the card dealing machine body 2 by the second fastener 29, thus fixing the inner ring 252 of the bearing to the card dealing machine body 2.

[0060] This structural form is simple to assemble, has small assembly errors, and the assembled structure is relatively compact.

[0061] like Figure 3 and 4 As shown, in this embodiment, one of the base 1 and the outer ring fixing ring 26 has a first positioning post 12 and the other has a first positioning hole 261, and the first positioning post 12 and the first positioning hole 261 cooperate with each other.

[0062] In the protrusion 243 and the inner ring fastener 28, one has a second positioning post 2431 and the other has a second positioning hole 281, and the second positioning post 2431 and the second positioning hole 281 cooperate with each other.

[0063] The cooperation between the positioning pin and the positioning hole enables rapid positioning and limiting, making it convenient for the first fastener 27 and the second fastener 29 to be inserted into the corresponding connection hole.

[0064] like Figure 3 and 7 As shown, in this embodiment, the card dealing machine body 2 has a docking groove 242, a protrusion 243 is provided on the bottom wall of the docking groove 242, and the mounting cavity 241 communicates with the docking groove 242 through the opening 2411; the base 1 includes an annular main body part 10 located below, a gear disk 11 located above the main body part 10, the gear disk 11 has a mounting groove 111 for mounting the bearing 25, and the bottom of the mounting groove 111 has a clearance opening 112 that penetrates the base 1;

[0065] The main body 10 completely covers the opening 2411 of the docking groove 242.

[0066] The main body 10 completely covers the opening 2411 of the docking groove 242, thereby reducing the amount of impurities (such as dust) entering the mounting cavity 241 through the docking groove 242. This structure can effectively ensure the reliable operation of the reflective photoelectric sensor 231.

[0067] like Figure 1 , 2 As shown in Figure 7, in this embodiment, an anti-slip pad 13 is installed on the bottom of the base 1, which covers the inner ring fixing member 28 and the clearance opening 112.

[0068] In this embodiment, the drive gear 22 is made of white plastic (which may be POM), and the teeth 221 of the drive gear 22 are coated with matte black paint to enhance the contrast of reflection.

[0069] The above description is only a preferred embodiment of the present utility model and does not limit the scope of patent protection of the present utility model. Any equivalent structural transformations made based on the content of the present utility model specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present utility model.

Claims

1. A card dealing machine that controls the rotation to stop by detecting the reflected signal from the tooth tip, characterized in that, The device includes a base and a card dealing machine body rotatably mounted on the base. The card dealing machine body is equipped with a drive motor and a drive gear driven by the drive motor. The base has a gear plate, and the drive gear meshes with the gear plate. The card dealing machine body is also equipped with a controller and a reflective photoelectric sensor electrically connected to the controller. The reflective photoelectric sensor is disposed on one side of the drive gear and corresponds to the teeth of the drive gear. The reflective photoelectric sensor is used to emit light into the movement space of the teeth of the drive gear and receive the reflected light.

2. The card dealing machine that controls the rotation to stop by detecting the reflected signal from the tooth tip as described in claim 1, characterized in that, The card dealing machine body has a mounting cavity, the drive gear and the reflective photoelectric sensor are disposed in the mounting cavity, the mounting cavity has an opening for the outer edge of the drive gear to be exposed, and the position of the reflective photoelectric sensor is offset from the opening.

3. The card dealing machine that controls the rotation to stop by detecting the reflected signal from the tooth tip as described in claim 2, characterized in that, The reflective photoelectric sensor is located on the side of the mounting cavity away from the opening.

4. The card dealing machine that controls the rotation to stop by detecting the reflected signal from the tooth tip as described in claim 1, characterized in that, The reflective photoelectric sensor has a transmitter and a receiver, both of which are located on the same side of the drive gear.

5. The card dealing machine that controls the rotation to stop by detecting the reflected signal from the tooth tip as described in claim 1, characterized in that, A bearing is provided between the base and the card dealing machine body, and the card dealing machine body and the bearing are rotated together through the bearing.

6. The card dealing machine that controls the rotation to stop by detecting the tooth tip reflection signal as described in claim 5, characterized in that, It also includes an outer ring retaining ring, a first fastener, an inner ring retaining member, and a second fastener; The card dealing machine body has a protrusion, and the base has a mounting groove for mounting the bearing on the side facing the card dealing machine body. The bottom of the mounting groove has a clearance opening that penetrates the base. The bearing is mounted on the mounting groove, with the first end face of the outer ring of the bearing abutting against the bottom wall of the mounting groove, and the outer ring retaining ring abutting against the second end face of the outer ring of the bearing. The outer ring retaining ring is fixed to the base by the first fastener, thus fixing the outer ring of the bearing to the base. The inner ring of the bearing is sleeved on the protrusion. The inner ring fixing member abuts against the end face of the inner ring of the bearing through the clearance opening. The inner ring fixing member is fixed to the card dealing machine body by the second fastener, thereby fixing the inner ring of the bearing to the card dealing machine body.

7. The card dealing machine controlled to stop rotating by detecting the tooth tip reflection signal as described in claim 6, characterized in that, Of the base and the outer ring fixing ring, one has a first positioning post and the other has a first positioning hole, and the first positioning post and the first positioning hole cooperate with each other. Of the protrusion and the inner ring fastener, one has a second positioning post and the other has a second positioning hole, and the second positioning post and the second positioning hole cooperate with each other.

8. The card dealing machine that controls the rotation to stop by detecting the tooth tip reflection signal as described in claim 6, characterized in that, The card dealing machine body has a mounting cavity, the drive gear and the reflective photoelectric sensor are disposed in the mounting cavity, the mounting cavity has an opening for the outer edge of the drive gear to be exposed, and the position of the reflective photoelectric sensor is offset from the opening; The card dealing machine body has a docking groove, the bottom wall of the docking groove has a protrusion, and the mounting cavity communicates with the docking groove through the opening; the base includes an annular main body part located below, the gear plate is located above the main body part, the gear plate has a mounting groove for mounting the bearing, and the bottom of the mounting groove has a clearance opening that penetrates the base; The main body completely covers the opening of the docking groove.

9. The card dealing machine controlled to stop rotating by detecting the tooth tip reflection signal as described in claim 6, characterized in that, The base is equipped with an anti-slip pad at the bottom, which covers the inner ring fixing component and the clearance opening.

10. The card dealing machine that controls the rotation to stop by detecting the tooth tip reflection signal as described in claim 1, characterized in that, The drive gear is made of white plastic, and the teeth of the drive gear are coated with matte black paint to enhance the contrast of reflection.

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