A pinball pickup and delivery device

Abstract

The application relates to the technical field of marble toys, in particular to a marble grabbing and conveying device which comprises a marble conveying unit and a transmission unit, the transmission unit comprising a power input part, a transmission assembly and an execution part; a marble clamping unit is fixed on the execution part and moves with the execution part to grab marbles in a ball storage assembly and move the marbles to a discharging assembly; the ball storage assembly and the discharging assembly are arranged, so that the marbles can be orderly temporarily stored, accurately inducted into a track and prevented from being outputted back, and the conveying stability is ensured; the transmission unit is arranged, so that the manual power can be converted into vertical reciprocating and rotating compound motion of the execution part without an additional power source, and more stable and reliable power and position guarantee are provided for grabbing and moving; meanwhile, all the components of the overall mechanism are common types on the market and are similar to existing mechanical component mechanisms, can be used as a toy carrier with interestingness and knowledge, and can realize double values of entertainment and knowledge acquisition.

Description

Technical Field

[0001] This utility model relates to the field of marble track technology, and in particular to a marble grabbing and conveying device. Background Technology

[0002] In the fields of toy manufacturing, mechanical education, and miniaturized equipment, marble grabbing and conveying devices are common functional modules. They not only need to achieve stable marble conveying, but also have additional requirements for ease of operation and intuitive structure in some scenarios (such as children's toys and mechanical principle teaching aids). Marble conveying is achieved through simple robotic arms or conveyor belts and is widely used in scenarios such as children's educational toys, material transfer on small production lines, and basic mechanical education.

[0003] However, existing marble grabbing and conveying devices still have many shortcomings: on the one hand, most devices are difficult to control the movement posture of the grabbing unit accurately, often resulting in problems such as marble transfer position deviation and unstable grabbing; on the other hand, the functions of existing devices are relatively simple, focusing only on marble conveying and lacking consideration for structural learning value - their components are mostly customized designs, which are quite different from the mechanical structures commonly found in reality, such as belt drives and gear meshing. Users find it difficult to intuitively understand the mechanical logic of power input and motion conversion during operation, especially when used as toys or teaching aids, they cannot have the dual value of "entertainment" and "knowledge acquisition". Summary of the Invention

[0004] To solve the above problems, this utility model provides a marble grabbing and conveying device, comprising:

[0005] A marble conveying unit, comprising a ball storage assembly for temporarily storing marbles and a ball discharge assembly for outputting marbles;

[0006] The transmission unit includes a power input component, a transmission assembly, and an actuator. The power input component drives the actuator to perform a combined motion of vertical reciprocating motion and its own rotation through the transmission assembly.

[0007] A ball gripping unit is fixed to the actuator and moves with the actuator to grab the balls in the ball storage assembly and transfer them to the discharge assembly.

[0008] In one embodiment, the power input component is a hand crank, the transmission assembly includes a belt drive pair, a gear set and a triangular transmission frame, the hand crank is connected to the driving wheel of the belt drive pair, the driven wheel of the belt drive pair is coaxially fixed with the driving gear of the gear set, and the triangular transmission frame is eccentrically fixed on the transmission gear of the gear set.

[0009] In one embodiment, the transmission assembly further includes a horizontal lifting rod and a sliding connection structure. The sliding connection structure includes a slider disposed on the triangular transmission frame and a slide rail disposed on the horizontal lifting rod. The triangular transmission frame is slidably connected to the horizontal lifting rod through the cooperation of the slider and the slide rail. The two sides of the horizontal lifting rod are slidably connected to the guide optical axis.

[0010] In one embodiment, the actuator includes an actuator gear and a fixed rack. The actuator gear is rotatably mounted on the horizontal lifting rod and meshes with the fixed rack. When the horizontal lifting rod drives the actuator gear to perform vertical reciprocating motion, the actuator gear meshes with the fixed rack to rotate itself.

[0011] In one embodiment, the ball storage assembly includes a feeding track, a ball storage track, and a receiving rotating plate. The feeding track is connected to the ball storage track, the ball storage track is provided with a ball storage trough, and the receiving rotating plate is rotatably mounted at the outlet of the ball storage track via a rotating plate shaft. A spring connects the receiving rotating plate to the rotating plate shaft.

[0012] In one embodiment, the receiving plate includes a receiving baffle, the receiving baffle has a ball through hole, a ball receiving groove is provided on one side of the receiving baffle, and a ball separating plate is also provided on the receiving baffle. The ball through hole is arranged opposite to the ball storage track outlet.

[0013] In one embodiment, the discharge assembly includes a discharge track, an inlet support plate is provided at the inlet end of the discharge track, and an anti-reverse hook is provided above the inlet support plate.

[0014] In one embodiment, the ball-grabbing unit includes a first gripping finger and a second gripping finger, the inner surfaces of the first gripping finger and the second gripping finger are both arc-shaped recesses, and the first gripping finger is provided with a gripping finger push plate.

[0015] In one embodiment, a support plate is also provided, the guide optical axis is fixed to the support plate by an optical axis bracket, and the fixing rack is fixed to the support plate by a rack bracket.

[0016] In one embodiment, the rail support plate has an arc-shaped recess in the middle, and the anti-reverse hook is barbed.

[0017] The beneficial effects of this utility model are as follows:

[0018] This utility model discloses a marble grabbing and conveying device. By setting up a ball storage component and a discharge component, it achieves orderly temporary storage, precise rail entry, and anti-backflow output of marbles, ensuring conveying stability. By setting up a transmission unit, the hand-cranked power can be converted into a vertical reciprocating and rotary compound motion of the actuator without an additional power source. When the actuator gear rotates to a certain number of revolutions, the marble grabbing unit can precisely place the marble into the discharge rail, avoiding transfer position deviation and further improving motion and alignment accuracy, providing more stable and reliable power and position guarantee for grabbing and conveying. At the same time, all components of the overall mechanism are common types on the market, similar to the mechanism of real mechanical parts, and can serve as a toy carrier that combines fun and knowledge. During assembly and transmission, users can intuitively understand the impact of belt drive, gear meshing, and size measurement on mechanical action, clearly learn the complete logic of power input, motion conversion, and precise execution, and realize the dual value of entertainment and knowledge acquisition. Attached Figure Description

[0019] Figure 1 This is a front view of the present utility model;

[0020] Figure 2 This is a schematic diagram of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of this utility model installed on the support plate;

[0022] Figure 4 for Figure 3 Enlarged view at point A;

[0023] Explanation of symbols in the diagram:

[0024] 1. Marble delivery unit;

[0025] 11. Ball storage assembly; 111. Feed track; 112. Ball storage track;

[0026] 113. Receiving plate; 1131. Receiving baffle; 1132. Ball through hole; 1133. Ball receiving groove; 1134. Ball partition plate;

[0027] 114. Rotating plate shaft; 115. Spring;

[0028] 12. Discharge assembly;

[0029] 121. Discharge track; 122. Track entry support plate; 123. Anti-reverse hook;

[0030] 2. Transmission unit;

[0031] 21. Power input components;

[0032] 22. Transmission components;

[0033] 221. Belt drive pair; 2211. Driving pulley; 2212. Driven pulley;

[0034] 222, Gear set; 2221, Driving gear; 2222, Transmission gear;

[0035] 223. Triangular transmission frame;

[0036] 224. Horizontal lifting rod;

[0037] 225. Sliding connection structure; 2251. Slider; 2252. Slide rail;

[0038] 226. Guide optical axis; 2261. Optical axis support;

[0039] 23. Actuating component; 231. Actuating gear; 232. Fixed rack; 2321. Rack support;

[0040] 3. Ball gripping unit; 31. First gripping finger; 32. Second gripping finger; 33. Gripping finger push plate;

[0041] 4. Support plate Detailed Implementation

[0042] 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.

[0043] It should be noted that 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. Therefore, 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.

[0044] like Figure 1 , 2 As shown, a marble grabbing and conveying device includes:

[0045] The marble conveying unit 1 includes a ball storage assembly 11 for temporarily storing marbles and a material discharge assembly 12 for outputting marbles.

[0046] The transmission unit 2 includes a power input component 21, a transmission assembly 22, and an actuator 23. The power input component 21 drives the actuator 23 to perform a combined motion of vertical reciprocating motion and self-rotation through the transmission assembly 22.

[0047] The ball gripping unit 3 is fixed on the actuator 23 and moves with the actuator 23 to grab the balls in the ball storage assembly 11 and transfer them to the discharge assembly 12.

[0048] Specifically, the marble conveying unit 1 includes a ball storage component 11 and a discharge component 12, which form a marble conveying path in space. The ball storage component 11 serves as a temporary storage area for marbles, and the discharge component 12 serves as a marble output area. Their positions are adapted to the movement trajectory of the marble gripping unit 3, ensuring that marbles can be transferred from the ball storage component 11 to the discharge component 12. The transmission unit 2 is the core of power transmission. Its internal power input component 21 is the power source. The output end of the power input component 21 is directly connected to the input end of the transmission component 22, and the output end of the transmission component 22 is assembled with the actuator 23, which can convert the power of the power input component 21 into the composite motion required by the actuator 23. The marble gripping unit 3 is rigidly connected to the actuator 23 and moves synchronously with the actuator 23. The movement range of the marble gripping unit 3 covers both the ball storage component 11 and the discharge component 12. It can grab marbles at the ball storage component 11 and then move with the actuator 23 to the discharge component 12 to complete the transfer. Before the equipment starts operating, in the initial state, the marbles are temporarily stored in the ball storage assembly 11, and the marble gripping unit 3 is positioned at a higher level relative to the discharge assembly 12. When the mechanism is started, the operator drives the power input component 21, and the power is transmitted through the transmission component 22 and the motion mode is converted, causing the actuator 23 to begin a combined motion of vertical reciprocating motion and its own rotation. The marble gripping unit 3 moves synchronously with the actuator 23. When the actuator 23 drives the marble gripping unit 3 to move towards the ball storage assembly 11, the marble gripping unit 3 gradually approaches the ball storage assembly 11 under the action of the combined motion. After reaching the corresponding position on the ball storage assembly 11, the marble gripping unit 3 grabs the marbles inside the ball storage assembly 11. After the gripping is completed, the reverse drive power input component 21 drives the transmission component 22 to move in the opposite direction, and the actuator 23 drives the ball gripping unit 3 to move. Under the combined action of vertical reciprocating motion and its own rotation, the ball gripping unit 3 carries the ball towards the discharge component 12. When it moves to a position that matches the discharge component 12, the ball gripping unit 3 transfers the ball to the discharge component 12, completing one ball conveying cycle. Then the reverse drive power input component 21 and the actuator 23 drive the ball gripping unit 3 back to the initial position, and the mechanism enters the next cycle, repeating the above gripping and transfer process.In this application, the power input component 21 provides a reliable power source, and the transmission component 22 receives the power and converts it into a composite motion of vertical reciprocating motion and its own rotation required by the actuator 23, thereby achieving high efficiency in power transmission and integration of motion forms, and providing suitable motion support for the ball gripping unit 3. By setting the ball gripping unit 3 and rigidly connecting it to the actuator 23, the ball gripping unit 3 can perform composite motion synchronously with the actuator 23, and the motion range covers the ball storage component 11 and the discharge component 12, thereby achieving accurate gripping of the ball at the ball storage component 11 and stable transfer at the discharge component 12, avoiding ball drop or transfer deviation caused by asynchronous motion. By adapting the positions of the ball storage component 11 and the discharge component 12 to the motion trajectory of the ball gripping unit 3, and matching the power transmission path of the transmission unit 2 with the composite motion requirements of the actuator 23, the overall structure of the device is compact and the transmission is stable.

[0049] like Figure 1 , 2 As shown, the power input component 21 is a hand crank, and the transmission assembly 22 includes a belt drive pair 221, a gear set 222, and a triangular transmission frame 223. The hand crank is connected to the driving wheel 2211 of the belt drive pair 221, the driven wheel 2212 of the belt drive pair 221 is coaxially fixed with the driving gear 2221 of the gear set 222, and the triangular transmission frame 223 is eccentrically fixed on the transmission gear 2222 of the gear set 222.

[0050] Specifically, the hand crank, as the power input component 21, requires no additional power source and is suitable for manual control scenarios. The belt drive pair 221 can buffer vibration and reduce impact when transmitting power, avoiding damage to subsequent components caused by uneven hand cranking force. At the same time, it can achieve initial deceleration through the wheel diameter ratio, transmitting the appropriate speed to the gear set 222. The gear set 222 is coaxially fixed with the driven wheel 2212 through the driving gear 2221, which can stably transmit power to the transmission gear 2222. The triangular transmission frame 223 is eccentrically mounted on the transmission gear 2222, which can accurately convert the rotational motion of the transmission gear 2222 into the vertical reciprocating motion required by the subsequent actuator 23, laying the foundation for the realization of the composite motion of the actuator 23. This not only ensures the stability and efficiency of power transmission, but also optimizes the motion parameters through multi-stage transmission, making the composite motion of the actuator 23 more in line with the needs of the marble gripping unit 3 to grasp and transfer marbles.

[0051] like Figure 2As shown, the transmission assembly 22 further includes a horizontal lifting rod 224 and a sliding connection structure 225. The sliding connection structure 225 includes a slider 2251 disposed on the triangular transmission frame 223 and a slide rail 2252 disposed on the horizontal lifting rod 224. The triangular transmission frame 223 is slidably connected to the horizontal lifting rod 224 through the cooperation of the slider 2251 and the slide rail 2252. The two sides of the horizontal lifting rod 224 are slidably connected to the guide optical shaft 226.

[0052] Specifically, in the transmission assembly 22, the triangular transmission frame 223 is smoothly converted into the vertical reciprocating motion of the horizontal lifting rod 224 through the cooperation of the slider 2251 and the slide rail 2252 and the sliding connection of the horizontal lifting rod 224, thus avoiding motion interference. The horizontal lifting rod 224 is slidably connected to the guide optical shaft 226 on both sides, which can limit its lateral offset and ensure the accuracy of vertical motion, forming a complete transmission chain, making the composite motion of the actuator 23 more accurate and stable, thereby improving the reliability of the ball gripping unit 3 in grasping and transferring the ball.

[0053] like Figure 2 As shown, the actuator 23 includes an actuator gear 231 and a fixed rack 232. The actuator gear 231 is rotatably mounted on the horizontal lifting rod 224 and meshes with the fixed rack 232. When the horizontal lifting rod 224 drives the actuator gear 231 to perform vertical reciprocating motion, the actuator gear 231 meshes with the fixed rack 232 to form its own rotation.

[0054] Specifically, in the actuator 23, the actuator gear 231 is rotatably mounted on the horizontal lifting rod 224 and meshes with the fixed rack 232. This synchronously converts the vertical reciprocating motion of the horizontal lifting rod 224 into the rotation of the actuator gear 231, achieving a combined vertical and rotational motion without the need for additional drive components. The ball gripping unit 3 is fixedly mounted on the actuator gear 231, and its movement is precisely controlled by the combined motion of the actuator gear 231. When the actuator gear 231 moves upward under the meshing action of the fixed rack 232, its vertical displacement is converted into its own rotation angle. The vertical distance from the outlet of the ball storage assembly 11 to the inlet of the discharge track 121, driven by the actuator gear 231, is carefully calculated based on the circumference of the actuator gear 231, and is exactly equal to an integer multiple or a specific ratio of the circumference of the actuator gear 231. This ensures that the posture of the ball gripping unit 3 accurately aligns the ball and feeds it into the discharge assembly 12.

[0055] like Figure 1 , 2As shown, the ball storage assembly 11 includes a feeding track 111, a ball storage track 112, and a receiving rotating plate 113. The feeding track 111 is connected to the ball storage track 112. The ball storage track 112 is provided with a ball storage trough. The receiving rotating plate 113 is rotatably mounted at the outlet of the ball storage track 112 via a rotating plate shaft 114. A spring 115 is connected between the receiving rotating plate 113 and the rotating plate shaft 114.

[0056] Specifically, in the ball storage assembly 11, the feed track 111 is connected to the ball storage track 112 to guide the balls smoothly into the ball storage tank for temporary storage. The receiving plate 113 is rotatably installed at the outlet of the ball storage track 112 via the plate shaft 114 and is connected to the plate shaft 114 by a spring 115. Under normal conditions, it can block the balls to prevent leakage, and when pressed by external force, it can open the outlet to allow a single ball to be output. This design not only achieves orderly storage and precise feeding of balls, but also uses the spring 115 to reset the receiving plate 113. No additional control structure is required, which simplifies the operation and ensures the stability of ball conveying.

[0057] like Figure 3 , 4 As shown, the receiving plate 113 includes a receiving baffle 1131, a ball through hole 1132 is provided on the receiving baffle 1131, a ball receiving groove 1133 is provided on one side of the receiving baffle 1131, and a ball separating plate 1134 is also provided on the receiving baffle 1131. The ball through hole 1132 is arranged opposite to the outlet of the ball storage track 112.

[0058] Specifically, on the receiving baffle 1131 of the receiving plate 113, the ball through hole 1132 is opposite to and slightly higher than the ball storage track 112. This height difference can naturally prevent the balls in the ball storage track 112 from flowing out on their own, avoiding unexpected leakage. When the receiving plate 113 is moved downward by external force, the ball through hole 1132 moves down to be level with the outlet of the ball storage track 112, and the ball separator 1134 descends accordingly, allowing a single ball to accurately enter the ball through hole 1132. This further improves the controllability and orderliness of the ball storage component 11's feeding, preventing the disorderly flow of balls from affecting the gripping efficiency of the ball gripping unit 3.

[0059] like Figure 1 As shown, the discharge assembly 12 includes a discharge track 121, and the inlet end of the discharge track 121 is provided with an inlet support plate 122. An anti-reverse hook 123 is provided above the inlet support plate 122.

[0060] Specifically, in the discharge assembly 12, the discharge track 121 provides a stable output channel for the marbles. The track support plate 122 at the track entry end can receive the marbles transferred by the marble clamping unit 3, preventing the marbles from falling directly and causing track entry deviation. The anti-reverse hook 123 above the track support plate 122 can prevent the marbles from retracting after entering the discharge track 121. This ensures a smooth transition of the marbles from the marble clamping unit 3 to the discharge track 121 and prevents the marbles that have entered the track from retracting, further improving the stability and reliability of the marbles output by the discharge assembly 12.

[0061] like Figure 3 , 4 As shown, the ball gripping unit 3 includes a first gripping finger 31 and a second gripping finger 32. The inner surfaces of the first gripping finger 31 and the second gripping finger 32 are both arc-shaped recesses. The first gripping finger 31 is provided with a gripping finger push plate 33.

[0062] Specifically, in the marble gripping unit 3, the arc-shaped concave design on the inner surface of the first gripping finger 31 and the second gripping finger 32 can conform to the shape of the marble, improve the wrapping and stability during gripping, and prevent the marble from slipping. The gripping finger push plate 33 on the first gripping finger 31 can help the marble to run out from the gripping finger when gripping it, and at the same time help the marble to smoothly enter the track when it is transferred to the discharge component 12. This not only ensures the reliability of marble gripping, but also provides support for the entire process of marble from storage to discharge, thereby improving the overall operating efficiency of the marble gripping unit 3.

[0063] like Figure 2 , 3 As shown, a support plate 4 is also provided. The guide optical axis 226 is fixed to the support plate 4 by the optical axis bracket 2261, and the fixing rack 232 is fixed to the support plate 4 by the rack bracket 2321.

[0064] Specifically, a support plate 4 is provided, and the guide optical shaft 226 is fixed to the support plate 4 through the optical shaft bracket 2261 and the fixed rack 232 is fixed to the support plate 4 through the rack bracket 2321. This provides a stable mounting base for the guide optical shaft 226 and the fixed rack 232, preventing them from shifting or shaking during the operation of the mechanism. By integrating the installation positions of key components through the unified support plate 4, the stability of the entire transmission unit and the movement of the actuator is improved, laying a structural foundation for the reliable operation of the ball gripping unit.

[0065] like Figure 1 As shown, the rail support plate 122 has an arc-shaped recess in the middle, and the anti-reverse hook 123 is barbed.

[0066] Specifically, the inlet support plate 122 has an arc-shaped recess in the middle, which can conform to the shape of the ball and guide the ball transferred by the ball clamping unit 3 to be accurately positioned at the inlet end of the outlet track 121, preventing the ball from deviating and slipping; the anti-reverse hook 123 is barbed, which can unidirectionally block the ball from regressing after it slides into the outlet track 121 along the arc-shaped recess, which not only ensures the smoothness of the ball entering the track, but also reliably prevents the ball that has entered the track from falling off in the opposite direction due to vibration, further improving the stability and reliability of the ball output by the outlet component 12.

[0067] This utility model discloses a marble gripping and conveying device. In the initial state, the marbles are temporarily stored in the ball storage assembly 11, and the marble gripping unit 3 is positioned at a higher position relative to the discharge assembly 12. When the mechanism is activated, the operator drives the power input component 21, and the power is transmitted through the transmission component 22 and converted into a motion mode, causing the actuator 23 to begin a combined motion of vertical reciprocating motion and its own rotation. The marble gripping unit 3 moves synchronously with the actuator 23. When the actuator 23 drives the marble gripping unit 3 to move towards the ball storage assembly 11, the marble gripping unit 3 gradually approaches the ball storage assembly 11 under the action of the combined motion. After reaching the corresponding position on the ball storage assembly 11, the marble gripping unit 3 grips the marbles inside the ball storage assembly 11. After the gripping is completed, the reverse drive power input component 21 drives the transmission component 22 to move in the opposite direction, and the actuator 23 drives the ball gripping unit 3 to move. Under the combined action of vertical reciprocating motion and its own rotation, the ball gripping unit 3 carries the ball towards the discharge component 12. When it moves to a position that matches the discharge component 12, the ball gripping unit 3 transfers the ball to the discharge component 12, completing one ball conveying cycle. Then the reverse drive power input component 21 and the actuator 23 drive the ball gripping unit 3 back to the initial position, and the mechanism enters the next cycle, repeating the above gripping and transfer process. In this application, by setting up a ball storage component 11 and a discharge component 12, orderly temporary storage, precise entry into the track, and anti-backflow output of marbles are achieved, ensuring the stability of the conveying process. By setting up a transmission unit 2, the hand-cranked power can be converted into a vertical reciprocating and rotary compound motion of the actuator 23 without an additional power source. When the actuator gear 231 rotates to a specific number of revolutions, the marble gripping unit 3 can precisely place the marble into the discharge track 121, avoiding deviation in the transfer position and further improving the motion and alignment accuracy, providing a more stable and reliable power and position guarantee for gripping and transfer. At the same time, all components of the overall mechanism are common types on the market, similar to the mechanisms of real mechanical parts, and can serve as a toy carrier that combines fun and knowledge. During assembly and transmission, the influence of belt drive, gear meshing, and size measurement on mechanical action can be intuitively understood, and the complete logic of power input, motion conversion, and precise execution can be clearly learned, realizing the dual value of entertainment and knowledge acquisition.

[0068] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

[0069] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

Claims

1. A marbles grabbing and conveying device, characterized in that, include: The marble conveying unit (1) includes a ball storage assembly (11) for temporarily storing marbles and a material discharge assembly (12) for outputting marbles. The transmission unit (2) includes a power input component (21), a transmission assembly (22), and an actuator (23). The power input component (21) drives the actuator (23) to perform a combined motion of vertical reciprocating motion and self-rotation through the transmission assembly (22). The ball gripping unit (3) is fixed on the actuator (23) and moves with the actuator (23) to grab the balls in the ball storage assembly (11) and transfer them to the discharge assembly (12).

2. The marble grabbing and conveying device according to claim 1, characterized in that, The power input component (21) is a hand crank, and the transmission assembly (22) includes a belt drive pair (221), a gear set (222) and a triangular transmission frame (223). The hand crank is connected to the driving wheel (2211) of the belt drive pair (221), the driven wheel (2212) of the belt drive pair (221) is coaxially fixed with the driving gear (2221) of the gear set (222), and the triangular transmission frame (223) is eccentrically fixed on the transmission gear (2222) of the gear set (222).

3. The marble grabbing and conveying device according to claim 2, characterized in that, The transmission assembly (22) further includes a horizontal lifting rod (224) and a sliding connection structure (225). The sliding connection structure (225) includes a slider (2251) on the triangular transmission frame (223) and a slide rail (2252) on the horizontal lifting rod (224). The triangular transmission frame (223) is slidably connected to the horizontal lifting rod (224) through the cooperation of the slider (2251) and the slide rail (2252). The two sides of the horizontal lifting rod (224) are slidably connected to the guide optical shaft (226).

4. The marble grabbing and conveying device according to claim 3, characterized in that, The actuator (23) includes an actuator gear (231) and a fixed rack (232). The actuator gear (231) is rotatably mounted on the horizontal lifting rod (224) and meshes with the fixed rack (232). When the horizontal lifting rod (224) drives the actuator gear (231) to perform vertical reciprocating motion, the actuator gear (231) meshes with the fixed rack (232) to form its own rotation.

5. The marble grabbing and conveying device according to claim 1, characterized in that, The ball storage assembly (11) includes a feeding track (111), a ball storage track (112), and a receiving rotating plate (113). The feeding track (111) is connected to the ball storage track (112). The ball storage track (112) is provided with a ball storage trough. The receiving rotating plate (113) is rotatably installed at the outlet of the ball storage track (112) via a rotating plate shaft (114). A spring (115) is connected between the receiving rotating plate (113) and the rotating plate shaft (114).

6. The marble grasping and conveying device according to claim 5, characterized in that, The receiving plate (113) includes a receiving baffle (1131), on which a ball through hole (1132) is provided, a ball receiving groove (1133) is provided on one side of the receiving baffle (1131), and a ball partition plate (1134) is also provided on the receiving baffle (1131). The ball through hole (1132) is arranged opposite to the outlet of the ball storage track (112).

7. The marble grabbing and conveying device according to claim 1, characterized in that, The discharge assembly (12) includes a discharge track (121), and the discharge track (121) has an inlet support plate (122) at the inlet end, and an anti-reverse hook (123) is provided above the inlet support plate (122).

8. The marble grasping and conveying device according to claim 1, characterized in that, The ball gripping unit (3) includes a first gripping finger (31) and a second gripping finger (32). The inner surfaces of the first gripping finger (31) and the second gripping finger (32) are both arc-shaped recesses. The first gripping finger (31) is provided with a gripping finger push plate (33).

9. A marble grasping and conveying device according to claim 4, characterized in that, A support plate (4) is also provided. The guide optical axis (226) is fixed to the support plate (4) by the optical axis bracket (2261), and the fixing rack (232) is fixed to the support plate (4) by the rack bracket (2321).

10. A marble-grabbing and conveying device according to claim 7, characterized in that, The rail support plate (122) has an arc-shaped recess in the middle, and the anti-reverse hook (123) is barbed.

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