Ball type conveying mechanism capable of turning over materials
By designing a ball-bearing conveyor mechanism that can tumble materials, the problem of impurities entering the chain and ball-bearing rotating components in fruit and vegetable screening machines was solved, achieving full tumbling of fruits and vegetables and improving screening accuracy, while reducing equipment failure rate and maintenance costs.
Patent Information
- Application Number
- CN202520265469.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-02-19
AI Technical Summary
In existing fruit and vegetable screening machines, the conveying structure has problems where impurities, dust, and debris in the material can easily enter the chain and ball bearing rotating components, leading to wear, tooth jamming, and screening failure. In addition, the ball bearing rotating components have a complex structure that is easily damaged and cannot fully rotate the fruits and vegetables.
A ball-type conveyor mechanism for tumbling materials was designed, including a ball conveying component, an external circulation device, and a ball rotating component. It uses a grooved wheel to guide impurities to fall off and a single-sided toothed synchronous belt for drive. This simplifies the structure, ensures that fruits and vegetables are fully tumbled, prevents foreign objects from entering, and improves the positioning accuracy of the vision system.
It achieves full turning of fruits and vegetables and complete information collection, reduces the possibility of impurities entering the chain, improves screening accuracy and equipment reliability, and reduces failure rate and maintenance costs.
Smart Images

Figure CN223970421U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fruit and vegetable screening technology, specifically a ball-type conveying mechanism for reversible materials. Background Technology
[0002] Fruit and vegetable sorting refers to the process of classifying fruits and vegetables according to criteria such as size, shape, color, and ripeness using a series of technical methods. The purpose of sorting is to improve the quality of fruits and vegetables, meet market demand, and reduce waste.
[0003] Fruit and vegetable sorting is widely used in agricultural production, food processing, supermarkets, and the catering industry. Sorting can increase the commercial value of fruits and vegetables, reduce defect rates, and enhance market competitiveness. Furthermore, sorting can help farmers and businesses better manage inventory, reduce waste, and improve economic efficiency.
[0004] To facilitate better sorting of fruits and vegetables by businesses, fruit and vegetable sorting machines were invented.
[0005] The existing utility model patent with patent number CN109225908B, entitled "A Fruit and Vegetable Sorting Machine," describes a system including a conveying mechanism, an image acquisition device, a fruit and vegetable turning mechanism, multiple sorting channels, a top-out device, and a central control system. The central control system includes an intelligent recognition module. The conveying mechanism includes multiple conveying units, each carrying a single fruit or vegetable. The top-out device includes multiple top-out groups corresponding to the multiple channels. When a conveying unit moves below the image acquisition device, the fruit and vegetable turning mechanism drives the fruit and vegetables within the conveying unit to rotate. The image acquisition device acquires images of the fruit and vegetables and sends the acquired image information to the intelligent recognition module for identification. The central control system classifies the fruit and vegetables in each conveying unit according to the identification results and controls the corresponding top-out unit to perform a delayed top-out action based on the classification results, thereby sorting and classifying the fruit and vegetables and improving production efficiency.
[0006] The aforementioned device has significant drawbacks when used for transporting fruits and vegetables. These drawbacks are as follows:
[0007] When the chain is too close to the material, impurities, dust, and debris in the material will enter the chain during material sorting, increasing wear and causing tooth skipping in severe cases. This leads to confusion in the screening and positioning of the electronic control system. At the same time, impurities, dust, and debris in the material will enter the ball bearing rotating assembly, causing tooth jamming and tooth loss, preventing the material from turning over, making the system unable to recognize it, and causing screening failure.
[0008] The ball bearing rotating assembly has a complex structure and is easily damaged. At the same time, the material cannot be fully tumbled or the tumbling speed is too fast, making it impossible to obtain complete material information.
[0009] In summary, the existing conveying structures in fruit and vegetable sorting machines all have certain drawbacks and do not meet people's usage requirements. Therefore, we propose a ball-type conveying mechanism for reversible materials. Summary of the Invention
[0010] To overcome the shortcomings of the prior art, this application provides a ball-type conveying mechanism for tumbled materials, wherein the height of the support can be adjusted to change the height of the antenna assembly, thereby enabling better signal transmission and reception during use. When not in use, it can be retracted to lower the height of the irrigation controller, placing it in the vegetation to provide shade and effectively extend the service life of the irrigation controller, showing good application prospects.
[0011] The technical solution adopted by the embodiments of this application to solve its technical problem is:
[0012] A ball-type conveying mechanism for tumbled materials is used for conveying fruits and vegetables inside a fruit and vegetable sorting machine. The conveying mechanism includes a ball conveying assembly, an external circulation device, and a ball rotating assembly.
[0013] The number of ball bearing conveyor components used for flipping and conveying different fruits and vegetables is several sets;
[0014] An external circulation device is installed inside the fruit and vegetable sorting machine, and the ball bearing conveying assembly is installed on the external circulation device;
[0015] A ball bearing rotating assembly is used to drive the ball bearing conveyor assembly to rotate. The ball bearing rotating assembly is installed inside the fruit and vegetable sorting machine and is located directly below the fruit and vegetable identification device.
[0016] A sweeping component is used to ensure that fruits and vegetables are evenly arranged on the ball conveyor assembly. The sweeping component is installed at the feeding position of the fruit and vegetable screening machine.
[0017] The external circulation device moves to change the position of the ball conveying component, so that the ball conveying component located directly below the fruit and vegetable identification device comes into contact with the ball rotating component.
[0018] Preferably, the external circulation device includes two sets of external circulation components symmetrically arranged inside the fruit and vegetable screening machine, and several sets of ball bearing conveying components are installed between the two sets of external circulation components.
[0019] Preferably, the external circulation assembly includes a conveyor wheel, a conveyor chain, and a conveyor motor;
[0020] The conveyor wheels are in several sets, and the conveyor wheels are installed inside the fruit and vegetable sorting machine via bearing components;
[0021] The inner side of the conveyor chain meshes with the conveyor wheel;
[0022] The conveyor motor is installed inside the fruit and vegetable sorting machine. The output shaft of the conveyor motor is connected to one of the conveyor wheels, which drives the conveyor chain to rotate.
[0023] Preferably, the ball conveying assembly includes a main transport ball chain, the two ends of which are rotatably connected to two sets of conveyor chains.
[0024] Preferably, the main transport bead chain includes a shaft, balls, and transmission gears;
[0025] The two ends of the shaft are rotatably connected to two sets of conveyor chains, respectively.
[0026] The number of balls is several sets, and the balls are mounted on the shaft.
[0027] The transmission gear is mounted on the shaft near the end.
[0028] The transmission gear located on the shaft directly below the fruit and vegetable identification device is connected to the ball bearing rotating assembly.
[0029] Preferably, a grooved wheel for guiding debris to fall is installed between the transmission gear and the ball.
[0030] Preferably, the ball bearing rotating assembly includes a mounting bracket, a drive wheel, a driven wheel, and a single-sided toothed synchronous belt;
[0031] The mounting rack is installed inside the fruit and vegetable sorting machine;
[0032] The drive wheel is mounted on the mounting bracket near one end;
[0033] The driven wheel is mounted on the mounting bracket near the other end;
[0034] A single-sided toothed synchronous belt is installed on the drive wheel and the driven wheel;
[0035] The single-sided toothed synchronous belt meshes with a transmission gear located on the shaft directly below the fruit and vegetable identification device.
[0036] Preferably, the mounting bracket is equipped with a timing belt support plate for supporting the upper half of the single-sided toothed timing belt, and the mounting bracket is located on the outside of the drive wheel, the driven wheel and the single-sided toothed timing belt.
[0037] Preferably, the sweeping assembly includes a brush roller and a drive wheel;
[0038] The brush roller is mounted on the fruit and vegetable sorting machine by rotation;
[0039] There are two sets of drive wheels, which are installed on the brush roller near both ends and mesh with the upper end of the conveyor chain.
[0040] In summary, this utility model has at least one of the following beneficial technical effects:
[0041] Firstly, this utility model describes a ball-type conveying mechanism for tumbling materials, which can be used for screening different fruits and vegetables. It has a wide range of applications, and with the effect of driving the ball conveying component to rotate in conjunction with the ball rotating component, it can achieve full tumbling of fruits and vegetables, so that the fruit and vegetable screening machine can obtain complete material information. It has good performance and good application prospects.
[0042] Secondly, this utility model describes a ball-type conveying mechanism for tumbled materials. A grooved wheel is installed between the transmission gear and the balls to guide the falling debris. Impurities, dust, and debris in fruits and vegetables will enter the grooved wheel first when they are close to the chain, and then be discharged from the main transport chain by gravity. This prevents impurities and debris from entering the chain and sprocket transmission system, eliminating the skipping of teeth in the main transport chain. The vision system provides stable and accurate positioning, has good performance, and has good application prospects.
[0043] Thirdly, this utility model describes a ball-type conveying mechanism for tumbled materials, which improves the ball rotating component, seals off any angle at which foreign objects enter the synchronous wheel teeth, effectively prevents debris and dust from falling into the material, allows the structure to operate in a relatively clean environment, eliminates tooth jamming, ensures full material tumble, and enables accurate identification by the vision system, thereby improving the overall screening capacity and screening accuracy, resulting in good performance.
[0044] Fourth, this utility model describes a ball-type conveying mechanism for tumbled materials, which improves the ball rotating component. The synchronous belt system retains only a driving wheel and a driven wheel. The stepper motor is directly connected to the driving wheel. Moreover, the double-sided toothed synchronous belt is changed to a single-sided toothed synchronous belt. The mechanism is simplified, reducing failure points, saving costs, and enhancing reliability. At the same time, it is easy to maintain, has good performance, and has good application prospects. Attached Figure Description
[0045] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0046] Figure 2 This is a diagram showing the usage state of this utility model.
[0047] Figure 3 This is a partial structural diagram of the present invention;
[0048] Figure 4 This is a structural diagram showing the position of the sweeping component in this utility model;
[0049] Figure 5 This is a structural diagram of the ball bearing rotating assembly in this utility model;
[0050] Figure 6 This is a partial structural diagram of the ball bearing rotating assembly in this utility model;
[0051] Figure 7 This is a structural diagram of the main transport bead chain in this utility model;
[0052] Figure 8 This is a structural diagram of the material sweeping component in this utility model.
[0053] Reference numerals: 1. Fruit and vegetable sorting machine; 2. Ball bearing conveyor assembly; 21. Main transport chain; 22. Ball bearing; 23. Transmission gear; 24. Grooved wheel; 3. External circulation device; 31. Conveyor wheel; 32. Conveyor chain; 4. Ball bearing rotating assembly; 41. Mounting frame; 42. Drive wheel; 43. Driven wheel; 44. Single-sided toothed synchronous belt; 45. Synchronous belt support plate; 5. Sweeping assembly; 51. Brush roller; 52. Transmission wheel. Detailed Implementation
[0054] This application provides a ball-type conveying mechanism for reversible materials, thereby solving the problems described in the background art.
[0055] Example 1
[0056] A ball-type conveyor mechanism for tumbling materials, such as Figures 1-8 As shown, it is used for conveying fruits and vegetables inside the fruit and vegetable sorting machine 1. The conveying mechanism includes a ball conveying assembly 2, an external circulation device 3, and a ball rotating assembly 4.
[0057] The number of ball bearing conveyor components 2 used for flipping and conveying different fruits and vegetables is several sets;
[0058] The external circulation device 3 is installed inside the fruit and vegetable sorting machine 1, and the ball conveying assembly 2 is installed on the external circulation device 3;
[0059] The ball rotating assembly 4 is used to drive the ball conveying assembly 2 to rotate. The ball rotating assembly 4 is installed inside the fruit and vegetable sorting machine 1 and is located directly below the fruit and vegetable identification device.
[0060] The material sweeping component 5 is used to ensure that the fruits and vegetables on the ball conveyor assembly 2 are evenly arranged. The material sweeping component 5 is installed at the feeding position of the fruit and vegetable screening machine 1.
[0061] The external circulation device 3 moves to change the position of the ball conveying component 2, so that the ball conveying component 2 located directly below the fruit and vegetable identification device comes into contact with the ball rotating component 4.
[0062] When in use, after the fruits and vegetables fall onto the ball conveyor assembly 2, the external circulation device 3 drives the ball conveyor assembly 2 to move, and the fruits and vegetables are conveyed at this time.
[0063] This utility model describes a ball-type conveying mechanism for tumbling materials, which can be used for screening different fruits and vegetables. It has a wide range of applications, and with the effect of the ball rotating component 4 driving the ball conveying component 2 to rotate, it can achieve full tumbling of fruits and vegetables, so that the fruit and vegetable screening machine can obtain complete material information. It has good performance and good application prospects.
[0064] Example 2
[0065] Based on Example 1, such as Figures 1-3 As shown, this embodiment also describes the following structure:
[0066] The external circulation device 3 includes two sets of external circulation components symmetrically arranged inside the fruit and vegetable screening machine 1, and several sets of ball bearing conveying components 2 are installed between the two sets of external circulation components.
[0067] The external circulation assembly includes a conveyor wheel 31, a conveyor chain 32, and a conveyor motor;
[0068] The number of conveyor wheels 31 is several sets, and the conveyor wheels 31 are installed inside the fruit and vegetable screening machine 1 through bearing components; the inner side of the conveyor chain 32 meshes with the conveyor wheels 31;
[0069] The conveyor motor is installed inside the fruit and vegetable sorting machine 1. The output shaft of the conveyor motor is connected to one of the conveyor wheels 31, and the conveyor chain 32 is driven to rotate through the conveyor wheels 31.
[0070] In use, the conveyor motor drives the conveyor wheel 31 to rotate, the rotation of the conveyor wheel 31 drives the conveyor chain 32 to move, and the movement of the conveyor chain 32 drives the ball conveyor assembly 2 to move.
[0071] In use, the corresponding conveyor wheels 31 in the two sets of external circulation components can be connected by a transmission rod. At this time, the entire external circulation device 3 can be driven by a set of conveyor motors, which has a good effect.
[0072] The ball conveying assembly 2 includes a main transport ball chain 21, the two ends of which are rotatably connected to two sets of conveyor chains 32.
[0073] like Figure 7 As shown, the main transport chain 21 includes a shaft, balls 22 and a transmission gear 23;
[0074] The two ends of the shaft are rotatably connected to two sets of conveyor chains 32, respectively.
[0075] The number of balls 22 is several sets, and the balls 22 are mounted on the shaft.
[0076] The transmission gear 23 is mounted on the shaft near the end.
[0077] Among them, the transmission gear 23 located on the shaft directly below the fruit and vegetable identification device is connected to the ball bearing rotating assembly 4.
[0078] The four ball bearings 22 form the identification position for a single fruit or vegetable.
[0079] The size and distance of the ball bearings 22 can be set to enable the conveying and flipping of different fruits and vegetables.
[0080] The distance between the balls 22 in different ball conveying components 2 is different, thereby realizing the flipping of different fruits and vegetables.
[0081] The ball bearing 22 is shaped like a frustum. Two consecutive ball bearings 22 are distributed in a mirror image on the same shaft. When in use, fruits and vegetables come into contact with the inclined surfaces of the four ball bearings 22, realizing the flipping of fruits and vegetables. The contact area is wide, the support is sufficient, and the flipping effect is better.
[0082] A grooved wheel 24 for guiding debris to fall is installed between the transmission gear 23 and the ball 22.
[0083] The outer diameter of the grooved wheel 24 is small, so when debris passes by, it will fall directly off and will not move laterally to the transmission gear 23.
[0084] This utility model describes a ball-type conveying mechanism for tumbled materials. A grooved wheel 24 is installed between the transmission gear 23 and the ball 22 to guide the falling debris. Impurities, dust, and debris in fruits and vegetables that are close to the chain will first enter the grooved wheel 24 and then be discharged from the main transport chain by gravity. This prevents impurities and debris from entering the chain and sprocket transmission system, eliminating the skipping of teeth in the main transport chain. The vision system provides stable and accurate positioning, has good performance, and has good application prospects.
[0085] Example 3
[0086] Based on Example 2, such as Figures 1-6 As shown, this embodiment also describes the following structure:
[0087] The ball bearing rotating assembly 4 includes a mounting bracket 41, a drive wheel 42, a driven wheel 43, and a single-sided toothed synchronous belt 44;
[0088] The mounting frame 41 is installed inside the fruit and vegetable sorting machine 1; the drive wheel 42 is installed on the mounting frame 41 near one end; the driven wheel 43 is installed on the mounting frame 41 near the other end.
[0089] A single-sided toothed synchronous belt 44 is mounted on the drive wheel 42 and the driven wheel 43;
[0090] Among them, the single-sided toothed synchronous belt 44 meshes with the transmission gear 23 located on the shaft directly below the fruit and vegetable identification device.
[0091] This utility model describes a ball-type conveyor mechanism for tumbling materials. It improves the ball rotating component 4, and the synchronous belt system retains only the driving wheel and one driven wheel. The stepper motor is directly connected to the driving wheel, and the double-sided toothed synchronous belt is changed to a single-sided toothed synchronous belt. The mechanism is simplified, reducing failure points, saving costs, and enhancing reliability. At the same time, it is easy to maintain, has good performance, and has good application prospects.
[0092] Example 4
[0093] Based on Example 2, such as Figures 1-8 As shown, this embodiment also describes the following structure:
[0094] The mounting bracket 41 is equipped with a timing belt support plate 45 for supporting the upper part of the single-sided toothed timing belt 44. The mounting bracket 41 is located on the outside of the drive wheel 42, the driven wheel 43 and the single-sided toothed timing belt 44.
[0095] The mounting bracket 41 includes two sets of mounting brackets and a fixed aluminum profile. The two sets of mounting brackets are mounted on the fixed aluminum profile through a fixed mounting plate. Supports are provided at both ends of the fixed aluminum profile. The drive wheel 42 and the driven wheel 43 are rotatably connected to the support through a pin. A motor is installed on the outside of the support on which the drive wheel 42 is mounted. The motor drives the drive wheel 42 to rotate, thereby rotating the single-sided toothed synchronous belt. The single-sided toothed synchronous belt meshes with the transmission gear 23, thereby driving the transmission gear 23 to rotate. The transmission gear 23 drives the shaft to rotate, thereby driving the ball 22 to rotate, realizing the turning of fruits and vegetables. The above structure design can protect the transmission position of the transmission gear 23 with the drive wheel 42 and the driven wheel 43.
[0096] This utility model describes a ball-type conveying mechanism for tumbled materials. It improves the ball-rotating component, preventing foreign objects from entering the synchronous wheel teeth at any angle. It effectively prevents debris and dust from falling into the material, allowing the structure to operate in a relatively clean environment, eliminating tooth jamming, ensuring thorough material tumbling, and enabling accurate identification by the vision system. This improves the overall screening capacity and accuracy, resulting in good performance.
[0097] like Figure 8 As shown, the sweeping assembly 5 includes a brush roller 51 and a drive wheel 52;
[0098] The brush roller 51 is mounted on the fruit and vegetable screening machine 1 by rotation; there are two sets of transmission wheels 52, which are mounted on the brush roller 51 near both ends and mesh with the upper end of the conveyor chain 32.
[0099] When in use, fruits and vegetables fall onto the ball conveyor assembly 2. The conveyor chain 32 drives the ball conveyor assembly 2 and the brush roller 51 to move. At this time, the ball conveyor assembly 2 drives the fruits and vegetables to move past the brush roller 51. The brush roller 51 rotates and contacts the fruits and vegetables, thereby separating the fruits and vegetables and avoiding the stacking of fruits and vegetables, so that the fruit and vegetable screening machine can obtain complete material information.
[0100] The material sweeping component 5 is driven by the conveyor chain 32, eliminating the need for a separate drive structure and resulting in good performance.
[0101] Working principle: When in use, fruits and vegetables fall onto the main transport bead chain 21. At this time, the motor starts and drives the main transport bead chain 21 to rotate, realizing the flipping of fruits and vegetables. During the flipping, the fruit and vegetable sorting machine collects information about the fruits and vegetables. At the same time, the external circulation device 3 drives the ball conveying component 2 to move, so that the fruits and vegetables fall between different balls 22, realizing the transport of fruits and vegetables.
[0102] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.
Claims
1. A reversible material conveying mechanism of the ball type, characterized in that, It is used for the conveying of fruits and vegetables inside the fruit and vegetable screening machine (1), the conveying mechanism comprises: A plurality of ball conveying assemblies (2) for overturning and conveying different fruits and vegetables; An external circulation device (3) is installed inside the fruit and vegetable screening machine (1), and the ball conveying assembly (2) is installed on the external circulation device (3); A ball rotating assembly (4) for driving the ball conveying assembly (2) to rotate, the ball rotating assembly (4) is installed inside the fruit and vegetable screening machine (1), and the ball rotating assembly (4) is located directly below the fruit and vegetable recognition device; A sweeping assembly (5) for arranging the fruits and vegetables on the ball conveying assembly (2) uniformly, the sweeping assembly (5) is installed at the feeding position of the fruit and vegetable screening machine (1); Wherein, the external circulation device (3) changes the position of the ball conveying assembly (2), so that the ball conveying assembly (2) located directly below the fruit and vegetable recognition device is in contact with the ball rotating assembly (4).
2. A reversible material ball transfer unit as claimed in claim 1, characterized in that: The external circulation device (3) comprises two sets of external circulation assemblies symmetrically arranged inside the fruit and vegetable screening machine (1), and a plurality of ball conveying assemblies (2) are installed between the two sets of external circulation assemblies.
3. A reversible material ball transfer unit as claimed in claim 2, wherein: The external circulation assembly comprises: A plurality of conveying wheels (31) are installed inside the fruit and vegetable screening machine (1) through bearing members; A conveying chain (32) is engaged with the conveying wheels (31) on the inner side; A conveying motor is installed inside the fruit and vegetable screening machine (1), and the output shaft of the conveying motor is connected with one of the conveying wheels (31), so that the conveying chain (32) is driven to rotate through the conveying wheel (31).
4. A reversible material ball transfer unit as claimed in claim 3, wherein: The ball conveying assembly (2) comprises a main conveying ball chain (21), and both ends of the main conveying ball chain (21) are rotationally connected with the two conveying chains (32).
5. A reversible material ball transfer mechanism as claimed in claim 4, wherein: The main conveying ball chain (21) comprises: A shaft body, both ends of which are rotationally connected with the two conveying chains (32); A plurality of balls (22) are installed on the shaft body; A transmission gear (23) is installed on the shaft body near the end position; Wherein, the transmission gear (23) on the shaft body directly below the fruit and vegetable recognition device is connected with the ball rotating assembly (4).
6. A reversible material ball transfer mechanism as claimed in claim 3, wherein: A groove wheel (24) for guiding the falling of sundries is installed between the transmission gear (23) and the ball (22).
7. A reversible material ball transfer mechanism as claimed in claim 6, wherein: The ball rotating assembly (4) comprises: A mounting frame (41) is installed inside the fruit and vegetable screening machine (1); A driving wheel (42) is installed on the mounting frame (41) near one end position; A driven wheel (43) is installed on the mounting frame (41) near the other end position; A single-sided tooth synchronous belt (44) is installed on the driving wheel (42) and the driven wheel (43); Wherein, the single-sided tooth synchronous belt (44) is engaged with the transmission gear (23) on the shaft body directly below the fruit and vegetable recognition device.
8. A reversible material ball transfer mechanism as claimed in claim 7, wherein: A synchronous belt supporting plate (45) for supporting the upper half of the single-sided tooth synchronous belt (44) is installed on the mounting frame (41), and the mounting frame (41) is located on the outer side of the driving wheel (42), the driven wheel (43) and the single-sided tooth synchronous belt (44).
9. A reversible material ball transfer unit as claimed in claim 1, characterized in that: The sweeping assembly (5) comprises: A brush roller (51) is rotatably installed on the fruit and vegetable screening machine (1); Two groups of transmission wheels (52) are installed on the brush roller (51) near the two ends, and the transmission wheels (52) are engaged with the upper end of the conveying chain (32).
Citation Information
Patent Citations
A fruit and vegetable sorting machine
CN109225908B