Ball feeding mechanism and pitching machine

Abstract

The utility model provides a ball feeding mechanism and a ball pitching machine, the ball feeding mechanism comprises a shell, the shell is provided with a ball inlet cavity and a ball passing channel communicated with one side of the ball inlet cavity, and the top of the ball inlet cavity is provided with a first opening for table tennis balls to enter; the driving assembly is used for driving the table tennis balls entering the ball inlet cavity to move towards the ball passing channel, and the driving assembly is installed on the shell; the limiting piece is used for preventing the table tennis balls from falling into the ball inlet cavity from the position above the ball inlet end of the ball passing channel, the limiting piece is installed on the shell, and the limiting piece extends into the first opening from the upper side of the ball inlet end of the ball passing channel. By adopting the limiting piece, the table tennis balls in the ball inlet cavity can be prevented from interfering with the table tennis balls above when being output, the table tennis balls can be prevented from being blocked, or the table tennis balls can be prevented from being discharged or even damaged, and faults of the ball feeding mechanism can be reduced.

Description

Technical Field

[0001] This application belongs to the field of training equipment technology, and more specifically, relates to a ball delivery mechanism and a ball serving machine. Background Technology

[0002] In table tennis training, ball-serving machines are frequently used. Existing ball-serving machines include a ball-feeding mechanism and a posture adjustment mechanism. The ball-feeding mechanism delivers the stored table tennis balls one by one to the posture adjustment mechanism, which adjusts the output posture of the table tennis balls. The existing ball-feeding mechanism has a ball-in-the-go cavity and a ball-out channel connected to one side of the cavity. The top of the ball-in-the-go cavity is open, and the table tennis balls fall into the cavity through the opening at the top, are then separated by a rotating wheel, and output to the ball-out channel.

[0003] When the ball-serving machine is in operation, a large number of ping-pong balls are piled up above the ball-collecting cavity. Under the influence of gravity, these ping-pong balls fall into the cavity and are then pushed along the inner wall of the cavity by a rotating wheel. However, during the serving process, occasional jamming or breakage of the ping-pong balls may occur. Utility Model Content

[0004] The purpose of this application is to provide a ball delivery mechanism to solve the technical problem that occasionally occurs during the serving of table tennis balls, such as jamming or breakage of the ball.

[0005] To achieve the above objectives, the technical solution adopted in this application is: to provide a ball delivery mechanism, comprising:

[0006] The housing has a ball-passing cavity and a ball-passing channel communicating with one side of the ball-passing cavity. The top of the ball-passing cavity has a first opening for the ping-pong ball to enter.

[0007] A drive assembly for driving a ping-pong ball entering the ball-scoring cavity toward the ball-passing channel, the drive assembly being mounted on the housing;

[0008] A limiting member is provided to prevent the ping-pong ball from falling into the ball-scoring cavity from above the ball-scoring end of the ball-passing channel. The limiting member is installed on the housing and extends from the upper side of the ball-scoring end of the ball-passing channel into the first opening.

[0009] By using a limiting component, the ping-pong ball located above the ball-passing end of the ball-passing channel can be prevented from falling directly into the ball-exiting end of the ball-passing cavity. This can, to a certain extent, prevent the ping-pong ball located above the limiting component from falling directly into the ball-passing cavity near the ball-passing channel during the serve. This prevents the ping-pong ball from interfering with the ping-pong ball above when it is being output from the ball-passing cavity, causing the ball to get stuck, affecting the ball's output, or even damaging the ping-pong ball. This helps to reduce the failure of the ball-feeding mechanism and better simulate different serve states.

[0010] In one embodiment, the ball-passing cavity is an annular groove, the first opening is annular, and the ball-passing channel connects to one side of the annular groove along the tangential direction of the annular groove;

[0011] The drive assembly includes a rotating wheel and a motor for driving the rotating wheel to rotate. The motor is installed inside the housing, and the motor shaft extends into the middle of the ball cavity and is connected to the rotating wheel.

[0012] By adopting the above-mentioned technical means, it is beneficial to control the sequential output of ping-pong balls entering the ball cavity, which helps to reduce collisions and wear during the transportation of ping-pong balls.

[0013] In one embodiment, the housing has a second opening at the top of the ball passage, and the second opening is disposed along the ball passage;

[0014] The limiting member includes a cover plate that covers the second opening and a limiting plate provided with the cover plate near one end of the ball cavity. The cover plate is connected to the housing, and the limiting plate extends along the edge of the first opening and extends toward the center of the first opening.

[0015] By adopting the above-mentioned technical means, the shell is easier to process, and the installation and disassembly of the limiting components are more convenient.

[0016] In one embodiment, the ratio of the width of the limiting plate to the width of the first opening ranges from 0.2 to 0.6; and / or,

[0017] The central angle corresponding to the limiting plate is 60°-180°.

[0018] By employing the aforementioned technical means, it is beneficial to control the arrangement of ping-pong balls in sequence within the ball cavity, thereby facilitating continuous ball delivery.

[0019] In one embodiment, the ball-scoring cavity includes a guiding section, a conveying section, and an output section. The guiding section is used to guide the ping-pong ball into or out of the ball-scoring cavity. The two ends of the conveying section are respectively connected to the guiding section and the output section. The end of the output section away from the conveying section is connected to the ball-passing channel.

[0020] By employing the aforementioned technical means, it is easy to control the ping-pong balls to enter the ball cavity in sequence and arrange them properly, and it is also convenient to drive the ball back when it is reversed.

[0021] In one embodiment, the guide segment is provided with a guide protrusion, the top of which extends downward in a spiral shape;

[0022] One side of the limiting member extends to the top of the guide protrusion, and the other side of the limiting member extends toward the conveying section.

[0023] By employing the aforementioned technical means, it is easier to guide the ping-pong ball from the bottom of the ball-scoring cavity to gradually rise and exit the cavity during ball-scoring; and it can prevent the ping-pong ball that has exited the cavity from falling to the ball-scoring end of the ball-passing channel.

[0024] In one embodiment, a retaining protrusion is provided at the bottom of the ball cavity, and the retaining protrusion is located between the guide section and the output section.

[0025] By adopting the above-mentioned technical means, it is beneficial to prevent the ping-pong ball in the output section from entering the guide section.

[0026] In one embodiment, a ball-receiving groove is provided at the top of the housing, the bottom of the ball-receiving groove is connected to the first opening, and the cross-sectional area of ​​the ball-receiving groove gradually decreases from the top of the ball-receiving groove to the first opening.

[0027] By adopting the above-mentioned technical means, it is easy to put in multiple ping-pong balls, reducing the number of times the balls need to be loaded.

[0028] In one embodiment, a guide plate is installed on the housing, and a chute communicating with the top of the ball receiving groove is formed on the guide plate. The depth of the chute gradually increases from the end of the guide plate away from the ball receiving groove to the end of the chute close to the ball receiving groove.

[0029] There are two guide plates, which are located on opposite sides of the ball receiving groove.

[0030] By employing the aforementioned technical means, it becomes convenient to insert ping-pong balls.

[0031] This application embodiment also provides a ball-serving machine, including a posture adjustment mechanism, including the ball-feeding mechanism described in any of the above claims, wherein the posture adjustment mechanism is connected to the housing, and the ball-feeding end of the posture adjustment mechanism is connected to the ball-exiting end of the ball-passing channel.

[0032] By employing the aforementioned technical methods, it is possible to control the serve of table tennis, which helps reduce the chance of the ball getting stuck, prevents damage to the table tennis ball, and improves the quality of training. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a three-dimensional structural diagram of the ball-launching machine provided in an embodiment of this application;

[0035] Figure 2 A three-dimensional structural schematic diagram of the ball delivery mechanism provided in the embodiments of this application;

[0036] Figure 3 for Figure 2 Exploded view of the ball delivery mechanism;

[0037] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure of the upper and middle shell;

[0038] Figure 5 for Figure 3 A three-dimensional structural diagram of the middle limiting component.

[0039] The following are the labeling elements in the figure:

[0040] 100. Ball delivery mechanism; 200. Posture adjustment mechanism;

[0041] 10. Shell; 10a. Upper shell; 10b. Lower shell; 101. Ball cavity; 1011. Guide section; 1012. Conveying section; 1013. Output section; 102. Ball passage; 103. Ball receiving groove; 104. First opening; 105. Second opening; 11. Guide protrusion; 12. Stop protrusion; 13. Guide plate; 130. Chute;

[0042] 20. Drive assembly; 21. Rotary wheel; 22. Motor;

[0043] 30. Limiting component; 31. Cover plate; 32. Limiting plate. Detailed Implementation

[0044] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0045] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0046] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0048] During the use of existing ball-serving machines, occasional jamming occurs, and after a period of use, some ping-pong balls are found to be deformed or broken. Through repeated observation and adjustments, it was discovered that when the machine is loaded with a large number of balls, there is some interference between the upper and lower layers of ping-pong balls. Further research revealed that at the exit of the ball-feeding cavity, the trajectory of the ping-pong balls changes. Upper-layer ping-pong balls are prone to falling after being launched from nearby exits and getting stuck with the next ball, causing the machine to jam. This leads to machine jamming, exacerbates ball deformation and wear, and in severe cases, directly causes the ping-pong balls to break.

[0049] Please refer to the following: Figures 1 to 3 The ball feeding mechanism 100 provided in this application embodiment will now be described. The ball feeding mechanism 100 includes a housing 10, a drive assembly 20, and a limiting member 30. The housing 10 has a ball-entry cavity 101 and a ball-passing channel 102. The ball-entry end of the ball-passing channel 102 is connected to one side of the ball-entry cavity 101. The top of the ball-entry cavity 101 has a first opening 104 for the ping-pong ball to enter. The drive assembly 20 is used to drive the ping-pong ball entering the ball-entry cavity 101 to move toward the ball-passing channel 102. The drive assembly 20 is mounted on the housing 10. The limiting member 30 is used to prevent the ping-pong ball from falling into the ball-entry cavity 101 from above the ball-entry end of the ball-passing channel 102. The limiting member 30 is mounted on the housing 10 and extends from the upper side of the ball-passing channel 102 into the first opening 104.

[0050] It should be noted that when the drive assembly 20 drives the ping-pong ball to move from the ball-entry cavity 101 towards the ball-passing channel 102, it controls the ping-pong ball to be output sequentially one by one into the ball-passing channel 102. The ball-entry end of the ball-passing channel 102 refers to the end of the ball-passing channel 102 that is connected to the ball-entry cavity 101. The limiting member 30 can be a plate-shaped, rod-shaped, or mesh structure, and its function is to prevent the ball from getting stuck when the upper and lower balls come into contact during output.

[0051] By using the limiting member 30, the ping-pong ball located above the ball-passing end of the ball passage 102 can be prevented from falling directly into the ball-exiting end of the ball-passing cavity 101. In this way, during the serving process, the ping-pong ball located above the limiting member 30 can be prevented from falling directly into the ball-passing cavity 101 near the ball passage 102. This prevents the ping-pong ball from interfering with the ping-pong ball above when it is output from the ball-passing cavity 101, causing the ball to get stuck, affecting the ball speed, or even damaging the ping-pong ball. This helps to reduce the failure of the ball-passing mechanism 100 in serving and better simulates serving states with different speeds and intervals.

[0052] In one embodiment of this application, please refer to Figures 2 to 4 The ball-passing cavity 101 is an annular groove, and the first opening 104 is annular. The ball-passing channel 102 connects to one side of the annular groove along the tangential direction of the annular groove. The drive assembly 20 includes a rotating wheel 21 and a motor 22 for driving the rotating wheel 21 to rotate. The motor 22 is installed inside the housing 10, and the shaft of the motor 22 extends into the middle of the ball-passing cavity 101 and is connected to the rotating wheel 21. Since the ball-passing channel 102 connects to one side of the annular groove along the tangential direction of the ball-passing cavity 101, when the ping-pong ball makes circular motion in the annular groove, the ball will enter the ball-passing channel 102 along the tangential direction of the annular groove at the ball-passing end of the ball-passing channel 102, so as to automatically detach from the ball-passing cavity 101. When the ball gets stuck and needs to be ejected, it can also effectively push the ping-pong ball backward from the ball-ejection end of the ball-passing cavity 101, reducing the compression and wear on the ping-pong ball when ejecting it. In this way, the motor 22 drives the rotating wheel 21 to rotate, thereby continuously transporting the ping-pong ball that enters the ball cavity 101 to the ball passage 102, so as to achieve continuous ball delivery.

[0053] Optionally, please refer to Figure 3 The housing 10 includes an upper housing 10a and a lower housing 10b, which can be connected by screws or ultrasonic welding.

[0054] In one embodiment of this application, please refer to Figures 2 to 5The housing 10 has a second opening 105 formed at the top of the ball passage 102, and the second opening 105 is disposed along the ball passage 102. The limiting member 30 includes a cover plate 31 and a limiting plate 32. The cover plate 31 covers the second opening 105, and the limiting plate 32 has one end of the cover plate 31 near the ball cavity 101. The cover plate 31 is connected to the housing 10, and the limiting plate 32 extends along the edge of the first opening 104 and extends toward the center of the first opening 104. This facilitates the processing of the ball passage 102 and the installation and fixing of the limiting member 30. Optionally, the limiting member 30 is an integrally formed structure, and the cover plate 31 is screwed to the housing 10, which facilitates the installation and disassembly of the limiting member 30 and makes maintenance easier.

[0055] In one embodiment of this application, please refer to Figures 2 to 5 The ratio of the width of the limiting plate 32 to the width of the first opening 104 ranges from 0.2 to 0.6. The width of the first opening 104 refers to the difference between the radii of its outer and inner rings, while the width of the limiting plate 32 refers to its radial dimension along the rotating wheel 21. This design prevents ping-pong balls on the upper side of the limiting plate 32 from falling into the ball-passing channel 102, while also facilitating observation of the ping-pong ball's movement on the lower side of the limiting plate 32 and making it easier to clean and maintain the ball-exit end of the ball-passing cavity 101.

[0056] In one embodiment of this application, please refer to Figures 2 to 5 The central angle corresponding to the limiting plate 32 is 60°-180°. Optionally, the central angle corresponding to the limiting plate 32 can be 90°, 120°, or 150°, etc. This can separate the ping-pong balls adjacent to the ball passage 102 from the ping-pong balls above the limiting plate 32, and also prevent the ping-pong balls from being affected by the excessive length of the limiting plate 32, so as to maintain the continuous arrangement of ping-pong balls in the ball-entry cavity 101. Among them, the central angle corresponding to a ping-pong ball in the ball-entry cavity 101 can be less than or equal to 60°.

[0057] Optionally, the end of the limiting plate 32 away from the ball passage 102 is rounded. This helps to reduce wear on the ping-pong ball during collisions and improves the lifespan of the ping-pong ball.

[0058] In one embodiment of this application, please refer to Figures 2 to 5The ball-filling cavity 101 includes a guiding section 1011, a conveying section 1012, and an output section 1013. The guiding section 1011 guides the ping-pong ball into or out of the ball-filling cavity 101. The two ends of the conveying section 1012 are connected to the guiding section 1011 and the output section 1013, respectively. The end of the output section 1013 furthest from the conveying section 1012 is connected to the ball-passing channel 102. By adopting a three-section design, it is easy to control the ping-pong ball to fall sequentially to the bottom of the ball-filling cavity 101 and fill the ball-filling cavity 101 as the rotating wheel 21 rotates, preventing the ping-pong ball from accumulating and blocking the position of the first opening 104. When a ball jam occurs, the drive component 20 reverses, and the guiding section 1011 can guide the ping-pong ball out of the ball-filling cavity 101. The output section 1013 can be understood as the arc length region corresponding to the area where the tangent line of the ping-pong ball intersects with the ball-filling cavity 101 when it leaves the ball-filling cavity 101.

[0059] In one embodiment of this application, please refer to Figures 2 to 5 The guide section 1011 is provided with a guide protrusion 11, the top of which extends downward in a spiral shape. By using the guide protrusion 11, the ping-pong ball can be guided to fall sequentially into the serving sequence; and when the ball is reversed and returned, it can gradually rise and exit the ball-entry cavity 101. The part of the ball-entry cavity 101 corresponding to the guide protrusion 11 can be considered as the guide section 1011.

[0060] Optionally, the ratio of the width of the guide protrusion 11 to the width of the ball-collecting cavity 101 ranges from 0.1 to 0.4. This ensures that the ping-pong balls fall sequentially into the bottom of the ball-collecting cavity 101 as the rotating wheel 21 rotates, preventing the ping-pong balls from getting stuck between the guide protrusion 11 and the rotating wheel 21, and avoiding the guide protrusion 11 interfering with the rotation of the rotating wheel 21. Of course, without interfering with the rotation of the rotating wheel 21 and while controlling the sequential descent of the ping-pong balls, the ratio of the width of the guide protrusion 11 to the width of the ball-collecting cavity 101 can be 0.2 or 0.3, which can be adjusted according to the actual product.

[0061] In one embodiment of this application, please refer to Figures 2 to 5 The ratio of the width of the ball cavity 101 to the diameter of the ping-pong ball ranges from 1.02 to 1.5. The rotating wheel 21 includes a connecting part and multiple blades. The multiple blades are arranged in a circular array around the connecting part. The connecting part is connected to the rotating shaft of the motor 22. The connecting part of the rotating wheel 21 can be understood as the inner ring of the ball cavity 101. A space for accommodating the ping-pong ball is formed between two adjacent blades. The ratio of the length of each blade to the width of the ball cavity 101 is 0.5-0.7. This prevents interference between the rotating wheel 21 and the guide protrusion 11 during rotation and also facilitates confining the ping-pong ball between two adjacent blades, so that the ping-pong ball can be moved during the rotation of the rotating wheel 21. The width of the guide protrusion 11 can be adjusted according to the blade length to avoid mutual interference.

[0062] In one embodiment of this application, please refer to Figures 2 to 5 A baffle 12 is provided at the bottom of the ball cavity 101, and the baffle 12 is located between the guide section 1011 and the output section 1013. The baffle 12 is used to separate the guide section 1011 and the output section 1013, thereby preventing the ping-pong ball from returning to the guide section 1011 from the output section 1013, so that the ping-pong ball in the output section 1013 can be smoothly output from the ball passage 102.

[0063] In one embodiment of this application, please refer to Figures 2 to 5 One side of the limiting member 30 extends to the top of the guide protrusion 11, and the other side of the limiting member 30 extends toward the conveying section 1012. In this way, it is possible to prevent the ping-pong ball exiting from the guide section 1011 from falling to the ball-scoring end of the ball passage 102.

[0064] Specifically, one end of the limiting plate 32 extends above the stop protrusion 12, and the other end of the limiting plate 32 extends to the conveying section 1012. In this way, the ping-pong balls entering the output section 1013 can be controlled to be output sequentially, preventing ping-pong balls above the limiting plate 32 from entering the output section 1013 and interfering with the ball output, which helps to reduce the probability of the ball getting stuck at the ball-passing end of the ball passage 102; when the ball is retracted, it can also prevent the ping-pong ball that has retracted to the top of the guide protrusion 11 from falling into the output section 1013.

[0065] In one embodiment of this application, please refer to Figures 2 to 5 The top of the shell 10 has a ball-receiving groove 103, and the bottom of the ball-receiving groove 103 is connected to the first opening 104. The cross-sectional area of ​​the ball-receiving groove 103 gradually decreases from the top of the ball-receiving groove 103 to the first opening 104. This makes it convenient to put multiple ping-pong balls into the ball-receiving groove 103. Since the cross-sectional area of ​​the ball-receiving groove 103 is larger at the top and smaller at the bottom, the ping-pong balls will automatically fall into the first opening 104 under the action of gravity, which is beneficial for continuous serving of ping-pong balls.

[0066] In one embodiment of this application, please refer to Figures 2 to 5 A guide plate 13 is installed on the housing 10. A chute 130 is formed on the guide plate 13, which communicates with the top of the ball receiving groove 103. The depth of the chute 130 gradually increases from the end of the guide plate 13 away from the ball receiving groove 103 to the end of the chute 130 closer to the ball receiving groove 103. By using the guide plate 13 and setting the chute 130 on the guide plate 13, when a ping-pong ball is placed in the chute 130, the ping-pong ball can automatically roll into the ball receiving groove 103 under the action of gravity.

[0067] Optionally, there are two guide plates 13, located on opposite sides of the ball receiving groove 103. This helps maintain the balance of the two sides of the ball feeding mechanism 100 and facilitates the loading of ping-pong balls.

[0068] Please see Figure 1 This application also provides a ball-serving machine, including a posture adjustment mechanism 200, which includes the ball-feeding mechanism 100 in any of the above embodiments. The posture adjustment mechanism 200 is connected to the housing 10, and the ball-feeding end of the posture adjustment mechanism 200 is connected to the ball-out end of the ball-passing channel 102. By using the ball-feeding mechanism 100, the ping-pong ball can be controlled to be fed into the posture adjustment mechanism 200, so that the posture of the ping-pong ball can be adjusted by the posture adjustment mechanism 200 to better simulate the scene in the actual ping-pong match.

[0069] The ball feeding mechanism 100 and ball serving machine provided in this application can be used not only for table tennis, but also for other ball sports such as tennis balls. It is only necessary to adjust the corresponding dimensions according to the size of different balls.

[0070] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ball-feeding mechanism, characterized in that, include: The housing has a ball-passing cavity and a ball-passing channel communicating with one side of the ball-passing cavity. The top of the ball-passing cavity has a first opening for the ping-pong ball to enter. A drive assembly for driving a ping-pong ball entering the ball-scoring cavity toward the ball-passing channel, the drive assembly being mounted on the housing; A limiting member is provided to prevent the ping-pong ball from falling into the ball-scoring cavity from above the ball-scoring end of the ball-passing channel. The limiting member is installed on the housing and extends from the upper side of the ball-scoring end of the ball-passing channel into the first opening.

2. The ball feeding mechanism as described in claim 1, characterized in that: The ball-passing cavity is an annular groove, the first opening is annular, and the ball-passing channel is connected to one side of the annular groove along the tangential direction of the annular groove; The drive assembly includes a rotating wheel and a motor for driving the rotating wheel to rotate. The motor is installed inside the housing, and the motor shaft extends into the middle of the ball cavity and is connected to the rotating wheel.

3. The ball feeding mechanism as described in claim 2, characterized in that: The housing has a second opening at the top of the ball passage, and the second opening is disposed along the ball passage; The limiting member includes a cover plate that covers the second opening and a limiting plate provided with the cover plate near one end of the ball cavity. The cover plate is connected to the housing, and the limiting plate extends along the edge of the first opening and extends toward the center of the first opening.

4. The ball feeding mechanism as described in claim 3, characterized in that: The ratio of the width of the limiting plate to the width of the first opening is in the range of 0.2-0.6; and / or, The central angle corresponding to the limiting plate is 60°-180°; The end of the limiting plate away from the ball passage has a rounded corner.

5. The ball feeding mechanism as described in claim 2, characterized in that: The ball-scoring cavity includes a guiding section, a conveying section, and an output section. The guiding section is used to guide the ping-pong ball into or out of the ball-scoring cavity. The two ends of the conveying section are respectively connected to the guiding section and the output section. The end of the output section away from the conveying section is connected to the ball-passing channel.

6. The ball feeding mechanism as described in claim 5, characterized in that: The guide section is provided with a guide protrusion, the top of which extends downward in a spiral shape; One side of the limiting member extends to the top of the guide protrusion, and the other side of the limiting member extends toward the conveying section.

7. The ball feeding mechanism as described in claim 5, characterized in that: The bottom of the ball cavity is provided with a stop protrusion, which is located between the guide section and the output section.

8. The ball-feeding mechanism as described in any one of claims 1 to 7, characterized in that: The top of the housing is provided with a ball receiving groove, the bottom of which is connected to the first opening, and the cross-sectional area of ​​the ball receiving groove gradually decreases from the top of the ball receiving groove to the first opening.

9. The ball feeding mechanism as described in claim 8, characterized in that: A guide plate is installed on the housing, and a chute is formed on the guide plate that communicates with the top of the ball receiving groove. The depth of the chute gradually increases from the end of the guide plate away from the ball receiving groove to the end of the chute closer to the ball receiving groove. There are two guide plates, which are located on opposite sides of the ball receiving groove.

10. A ball-serving machine, comprising an attitude adjustment mechanism, characterized in that: Includes the ball delivery mechanism as described in any one of claims 1-9, wherein the attitude adjustment mechanism is connected to the housing, and the ball-in-going end of the attitude adjustment mechanism is connected to the ball-out-going end of the ball-passing channel.

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