A multi-layered fruit detection device

By designing a multi-layer fruit detection device, which utilizes a conveyor belt and a flipping mechanism to achieve all-around fruit imaging, the problem of incomplete fruit sorting in existing technologies has been solved, and the quality and automation of fruit sorting have been improved.

CN116851294BActive Publication Date: 2025-11-25NINGBO ZHENGMING DETECTION CO LTD
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Patent Information

Application Number
CN202311066242.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-23
Publication Date
2025-11-25
Estimated Expiration
2043-08-23

AI Technical Summary

Technical Problem

Existing fruit sorting machines cannot capture images of the fruit from all angles, resulting in substandard fruit not being detected in time and affecting sorting quality.

Method used

A multi-layer fruit detection device was designed. The fruit is rotated on a platform by a conveyor belt. Combined with a scanner and a rotating mechanism, the fruit can be rotated horizontally and vertically to ensure that the fruit surface is captured from all angles. A servo motor drives the fruit drag to different directions to achieve all-round scanning.

Benefits of technology

It enables comprehensive detection of surface lesions in fruits, improves sorting quality, promptly removes substandard fruits, and ensures the automation and overall quality of fruit sorting.

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Abstract

The application discloses a fruit multilayer detection device, and relates to the technical field of fruit sorting, which comprises a workbench, a plurality of conveyors for conveying fruits are arranged in the workbench, a scanner for shooting the fruits is arranged above the workbench, a fixing seat is arranged above the conveyors, a carrier is arranged above the fixing seat for receiving the fruits, a fruit holder one is arranged in the carrier, a connecting shaft one is arranged in the fruit holder one, a connecting block one is arranged in the workbench, a connecting block two is arranged on one side of the connecting block one, a connecting plate is arranged between the connecting block one and the connecting block two, a fruit holder two is arranged in the connecting plate, a turnover mechanism is arranged on one side of the connecting block one for moving the fruits from above the fruit holder one to above the fruit holder two, in the fruit multilayer detection device, the turnover mechanism is used to realize omnibearing shooting and scanning of the surface area of the fruits, and unqualified fruits are discharged in time, so that the overall fruit sorting quality is remarkably improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fruit sorting, in particular to a fruit multi-layer detection device. BACKGROUND

[0002] Fruits not only contain rich nutrients, but also can promote digestion, and are an important part of people's healthy life. Selecting a large number of picked fruits is an important link before fruit sales.

[0003] The common fruit sorting machine has a simple structure, and is usually used to place the fruits to be sorted above the conveying belt. The fruits are classified by size and weight by using the changing interval between the conveying belts during the movement of the fruits driven by the conveying belt. However, the simple fruit detection and sorting only distinguishes the fruits by size. When there are cracked fruits, bad fruits or incomplete fruit skins, the worker needs to manually remove the fruits. Even if a visual detection device for fruits is installed on the sorting device, the surface of the fruits on the sorting line can be clearly photographed. However, the fruits conveyed by the conveying belt have a single turning direction, so that each surface of the fruits cannot be fully photographed, and some inferior fruits still exist in the sorted fruits, which reduces the overall fruit sorting quality. Therefore, we propose a fruit multi-layer detection device. SUMMARY

[0004] The present application aims to provide a fruit multi-layer detection device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a fruit multi-layer detection device, comprising a workbench, a plurality of conveying belts for conveying fruits are arranged in the workbench, a scanner for photographing fruits is arranged above the workbench, a fixing seat is arranged above the conveying belt, a carrier is arranged above the fixing seat for receiving fruits, a fruit holder one is arranged in the carrier, a connecting shaft one is arranged in the fruit holder one, a connecting block one is arranged in the workbench, a connecting block two is arranged on one side of the connecting block one, a connecting plate is arranged between the connecting block one and the connecting block two, a fruit holder two is arranged in the connecting plate, a turnover mechanism is arranged on one side of the connecting block one for moving the fruits from the fruit holder one to the fruit holder two, the turnover mechanism comprises a gear outside the connecting shaft one, a connecting shaft two is arranged on one side of the connecting block one, a stop rod is arranged outside the connecting shaft two, a spring is arranged in the stop rod, a stop block is arranged at one end of the spring, the stop rod comprises a protruding part, and a fixing column is arranged on one side of the connecting block one and in contact with the protruding part.

[0006] Preferably, the upper portion of the workbench is provided with a plurality of tooth blocks, the tooth blocks are in meshing transmission with a gear, the gear is fixedly connected with a connecting shaft I, a fruit drag I is fixedly connected with the connecting shaft I, and fruits on the upper portion of the fruit drag I are located in the central region of the fruit drag I.

[0007] Preferably, one side of the connecting plate is provided with a connecting shaft III, the outer wall of the connecting shaft III is provided with a fixing cylinder, the end portion of the fixing cylinder is fixedly connected with the workbench, the inside of the fruit drag II is provided with a connecting shaft IV, one end of the connecting shaft IV is provided with a servo motor, the end portion of the connecting shaft IV is fixedly connected with the shaft body of the servo motor through a shaft coupling, the outer wall of the servo motor is provided with a fixing frame, the outer wall of the connecting shaft IV is provided with a connecting piece, the outer wall of the fixing frame is provided with a connecting column, the outer wall of the connecting column is provided with a clamping plate, and the inside of the workbench is provided with a sliding groove for sliding of the clamping plate.

[0008] Preferably, the inner wall of the workbench is provided with an arc-shaped groove for sliding of the connecting column, and the arc-shaped groove is an arc-shaped circle rotating with the connecting shaft III as the center.

[0009] Preferably, a torsional spring is arranged between the connecting shaft III and the fixing cylinder, and the elastic force of the torsional spring is used to rotate the connecting plate to be parallel to the workbench in a normal state.

[0010] Preferably, the upper portion of the workbench is provided with a control switch, the control switch is electrically connected with the servo motor, and the end portion of the gear is pressed against the control switch during the meshing transmission of the gear and the tooth blocks.

[0011] Preferably, one side of the carrier is provided with a magnet I, one side of the connecting block II is provided with a magnet II which is attracted to the magnet I, and the magnetic force between the magnet I and the magnet II is used to rotate the connecting plate downward along the connecting shaft III.

[0012] Preferably, the overall shapes of the connecting block I and the connecting block II are both inclined surfaces, and the connecting block I and the connecting block II both include a side surface portion for resisting the side surface of the fruits.

[0013] Preferably, the carrier is shaped as an inclined surface inclined toward the center, and the fruit drag I is located in the central region of the inclined surface of the carrier.

[0014] Compared with the prior art, the present application has the following beneficial effects:

[0015] When the fruits enter above the fruit dolly one, the conveying belt drives the carrier and the fruit dolly one to move in the workbench, in the moving process, the fruit dolly one is driven to rotate in the carrier, and the fruits above the fruit dolly one rotate horizontally, when the rotating fruits enter below the scanner above the workbench, the scanner can scan and shoot the horizontal rotating area of the fruits, and the surface disease of the fruits in the area is detected; on the other hand, when the fruit dolly one continues to enter the center of the scanner, the gear is resisted by the end of the resisting block along with the descending trend of the gear block, further, the resisting effect of the two makes the resisting rod rotate along the connecting shaft two, and the protruding part is resisted by the fixed column, finally, the resisting rod drives the connecting block one and the fruit dolly two to rotate downward along the connecting shaft three, in this state, the fruit dolly one is also in the inclined state due to the inclined trend of the gear block, therefore, the fruits above the fruit dolly one will roll to the upper side of the connecting block one, finally, the fruits in the fruit dolly two rotate to the parallel state with the workbench again, at this time, the gear has been displaced to the upper side of the control switch and is pressed, so that the servo motor is started, and the fruit dolly two is driven to rotate, since the rotating directions of the fruit dolly two and the fruit dolly one are different, the fruits above the fruit dolly two will rotate vertically, and the surface area of the fruits above the fruit dolly one which is not shot is captured, the omnibearing shooting and scanning of the surface area of the fruits are realized, and the unqualified fruits are discharged in time, so that the overall sorting quality of the fruits is improved significantly. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the whole structure of the present application;

[0017] Figure 2 It is a schematic diagram of another angle structure of the present application;

[0018] Figure 3 It is a sectional view of another angle structure of the present application;

[0019] Figure 4 It is a schematic diagram of the present application Figure 3 It is an enlarged view of the A area structure in the present application;

[0020] Figure 5 It is a sectional view of another angle structure of the present application;

[0021] Figure 6 It is an enlarged view of the B area structure in the present application; Figure 5

[0022] It is a sectional view of the present application; Figure 7

[0023] It is an enlarged view of the C area structure in the present application; Figure 8 Figure 7 It is an enlarged view of the C area structure in the present application;​

[0024] Figure 9 It is a structure schematic view of the fruit dolly one in the application;

[0025] Figure 10 It is a structure partial sectional view of the fruit dolly two in the application;

[0026] Figure 11 It is a structure schematic view of the fruit dolly two in the application.

[0027] In the figure: 1-workbench; 2-conveyer belt; 3-scanner; 4-fixing seat; 5-carrier; 6-fruit dolly one; 7-connecting shaft one; 8-overturning mechanism; 81-gear; 82-connecting shaft two; 83-resisting rod; 84-spring; 85-resisting block; 86-protruding part; 87-fixing column; 9-connecting block one; 10-connecting block two; 11-connecting plate; 12-fruit dolly two; 13-tooth block; 14-connecting shaft three; 15-fixing cylinder; 16-connecting shaft four; 17-servo motor; 18-fixing frame; 19-connecting piece; 20-connecting column; 21-clamping plate; 22-slotted guide; 23-arc-shaped slot; 24-torsional spring; 25-control switch; 26-magnet one; 27-magnet two; 28-side part. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the application will be apparently and completely described below with the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0029] Please refer to Figures 1-11 The application provides a technical solution: a fruit multi-layer detection device. The application solves the problems in the background art. The application is improved in view of the above problems. The application comprises a workbench 1. The workbench 1 is internally provided with a plurality of conveyer belts 2 for conveying fruits. The workbench 1 is provided above with a scanner 3 for shooting the fruits. The scanner 3 is fixedly connected with the workbench 1 through a support. The above are prior art. The fruits below the scanner 3 are shot and scanned by the scanner 3, so as to check the damaged conditions and the diseased areas on the surface of the fruits. The workbench 1 is provided above with a fixing seat 4 fixedly connected therewith. The fixing seat 4 is provided above with a carrier 5 for receiving the fruits. The carrier 5 is fixedly connected with the fixing seat 4 on one side. The fixing seat 4 and the carrier 5 convey the fruits along with the conveyer belt 2. The carrier 5 is internally provided with a fruit dolly one 6. The carrier 5 is shaped as an inclined surface inclined towards the center. The fruit dolly one 6 is located in the center area of the inclined surface of the carrier 5. This makes the fruits automatically roll along the inclined surface of the carrier 5 towards the center of the fruit dolly one 6, so as to facilitate the fruit dolly one 6 to turn over the fruits.

[0030] The fruit slipper 6 has a connecting shaft 7 inside, which is fixedly connected to the fruit slipper 6. The connecting shaft 7 is located inside the platform 5 and is rotatably connected to it. The worktable 1 has a connecting block 9 inside, and a connecting block 2 10 is provided on one side of the connecting block 9. A connecting plate 11 is provided between the connecting block 9 and the connecting block 2 10. The two ends of the connecting plate 11 are fixedly connected to the connecting block 9 and the connecting block 2 10 respectively. The overall shape of the connecting block 9 and the connecting block 2 10 is inclined. Both the connecting block 9 and the connecting block 2 10 include a side part 28 that blocks the side of the fruit. The side part 28 can block the rolling of the fruit and make it easy for the fruit to gather towards the center area of ​​the fruit slipper 2 12. The connecting plate 11 has the fruit slipper 2 12 inside. A flipping mechanism 8 is provided on one side of the connecting block 9 to move the fruit from above the fruit slipper 6 to above the fruit slipper 2 12. The flipping mechanism 8 includes a gear 81 outside the connecting shaft 7, which is fixedly connected to the connecting shaft 7. A connecting shaft 2 82 is provided on one side and fixedly connected thereto. A stop rod 83 is provided on the outside of the connecting shaft 2 82 and rotatably connected thereto. A spring 84 is provided inside the stop rod 83. A stop block 85 is provided at one end of the spring 84. The two ends of the spring 84 are fixedly connected to the stop block 85 and the stop rod 83 respectively. The stop rod 83 includes a protrusion 86. A fixed post 87 is provided on one side of the connecting block 1 9 and contacts the protrusion 86. One end of the fixed post 87 is fixedly connected to the connecting block 1 9. Multiple toothed blocks 13 are provided on the top of the workbench 1 and fixedly connected thereto. The toothed blocks 13 mesh with the gear 81 for transmission. The fruit on the top of the fruit tray 1 6 is located in the center area of ​​the fruit tray 1 6. A magnet 26 is provided on one side of the platform 5 and fixedly connected thereto. A magnet 27 is provided on one side of the connecting block 2 10 and attracts the magnet 26. One side of the magnet 27 is fixedly connected to the connecting block 2 10. The magnetic force between the magnet 26 and the magnet 27 will rotate the connecting plate 11 downward along the connecting shaft 3 14.

[0031] Further, one side of the connecting plate 11 in the scheme is provided with a connecting shaft three 14 and fixedly connected therewith, the outer wall of the connecting shaft three 14 is provided with a fixed cylinder 15 and rotatably connected therewith, the end of the fixed cylinder 15 is fixedly connected with the workbench 1, the inside of the fruit tray two 12 is provided with a connecting shaft four 16 and fixedly connected therewith, one end of the connecting shaft four 16 is provided with a servo motor 17, the end of the connecting shaft four 16 is fixedly connected with the shaft body of the servo motor 17 through a shaft coupling, the outer wall of the servo motor 17 is provided with a fixing frame 18 and fixedly connected therewith, the outer wall of the fixing frame 18 is provided with a connecting column 20, the outer wall of the connecting shaft four 16 is provided with a connecting piece 19 and rotatably connected therewith, the connecting piece 19 has two, the ends of the two connecting pieces 19 are fixedly connected with the connecting block two 10 and the connecting block one 9 respectively, the outer wall of the connecting column 20 is provided with a clamping plate 21 and fixedly connected therewith, the inside of the workbench 1 is provided with a sliding groove 22 for the clamping plate 21 to slide, the inner wall of the workbench 1 is provided with an arc-shaped groove 23 for the connecting column 20 to slide, the arc-shaped groove 23 is an arc-shaped circle rotated with the connecting shaft three 14 as the center, which makes the servo motor 17 always keep a relatively fixed state with the workbench 1 when the fruit tray two 12 rotates, so that the fruit tray two 12 rotates normally, the connecting shaft three 14 and the fixed cylinder 15 are provided with a torsional spring 24, the two ends of the torsional spring 24 are fixedly connected with the connecting shaft three 14 and the fixed cylinder 15 respectively, the elastic force of the torsional spring 24 rotates the connecting plate 11 to be parallel to the workbench 1 in the normal state, the top of the workbench 1 is provided with a control switch 25, the control switch 25 is fixedly connected to the top of the workbench 1, the control switch 25 is electrically connected with the servo motor 17, the end of the gear 81 is extruded with the control switch 25 during the mutual meshing transmission of the gear 81 and the toothed block 13;

[0032] When the fruit passes the preliminary sorting and enters above the fruit dolly one 6, the conveyor belt 2 drives the carrier 5 and the fruit dolly one 6 to move inside the workbench 1. During the movement, the gear 81 on the outer wall of the connecting shaft one 7 meshes with the tooth block 13 on one side of the workbench 1 to drive the fruit dolly one 6 to rotate inside the carrier 5, so that the fruit above the fruit dolly one 6 rotates horizontally. When the rotating fruit enters below the scanner 3 above the workbench 1 with the fruit dolly one 6, the scanner 3 can comprehensively scan and shoot the horizontal rotation area of the fruit, ensuring the surface disease detection of this area of the fruit. On the other hand, when the fruit dolly one 6 continues to enter the center of the scanner 3, the gear 81 moves towards the inside of the workbench 1 along with the descending trend of the tooth block 13. The outer wall of the gear 81 is resisted by the end of the resisting block 85. Further, the resisting effect of the two makes the resisting rod 83 rotate along the connecting shaft two 82, and the protruding part 86 is resisted by the fixed column 87, so that the resisting rod 83 drives the connecting block one 9 and the fruit dolly two 12 to rotate downward along the connecting shaft three 14. In this state, the fruit dolly one 6 is also in an inclined state due to the inclined trend of the tooth block 13. Therefore, the fruit above the fruit dolly one 6 will roll to the upper side of the connecting block one 9 and finally be squeezed by the gear 81 and the resisting block 85. The resisting block 85 enters the inside of the resisting rod 83, and the gear 81 and the resisting block 85 are separated from each other. The fruit inside the fruit dolly two 12 will rotate again to the parallel state with the workbench 1 due to the elastic force of the torsional spring 24 inside the fixed cylinder 15. At this time, the gear 81 has displaced to the upper side of the control switch 25 and squeezed it. The servo motor 17 is started to drive the fruit dolly two 12 to rotate. Since the rotating directions of the fruit dolly two 12 and the fruit dolly one 6 are different, the fruit above the fruit dolly two 12 will rotate vertically, so that the fruit surface area above the fruit dolly one 6 which has not been shot is captured, realizing the omnibearing shooting and scanning of the fruit surface area, and timely discharging the unqualified fruit, so that the overall fruit sorting quality is significantly improved. When the gear 81 continues to move and is separated from the control switch 25, the servo motor 17 stops rotating. The magnet two 27 above the connecting block two 10 and the magnet one 26 on one side of the carrier 5 will be attracted to each other. During the process of the carrier 5 rising again due to the meshing of the gear 81 and the tooth block 13, the fruit dolly one 6 and the fruit dolly two 12 will be inclined again, so that the fruit inside the fruit dolly two 12 enters the inside of the fruit dolly one 6, and the fruit enters the next sorting link smoothly, ensuring the automation of the whole detection and sorting process.

[0033] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0034] While the embodiments of the application have been shown and described herein, it will be understood by those skilled in the art that many changes, modifications, substitutions and alterations to these embodiments can be made without departing from the principles and spirits of the application, and it is intended that the scope of the application be limited solely by the scope of the appended claims and the equivalents thereof.

Claims

1. A fruit multi-layer detection device, comprising a workbench (1), the inside of the workbench (1) is provided with a plurality of conveying belts (2) for conveying fruits, and the top of the workbench (1) is provided with a scanner (3) for shooting fruits, characterized in that: The upper part of the conveying belt (2) is provided with a fixed seat (4), the upper part of the fixed seat (4) is provided with a loading platform (5) for receiving fruits, the inside of the loading platform (5) is provided with a fruit carrier (6), the inside of the fruit carrier (6) is provided with a connecting shaft (7), the inside of the workbench (1) is provided with a connecting block (9), one side of the connecting block (9) is provided with a connecting block (10), the connecting block (9) and the connecting block (10) are provided with a connecting plate (11), the inside of the connecting plate (11) is provided with a fruit carrier (12), one side of the connecting block (9) is provided with a turnover mechanism (8) for moving the fruits from the upper part of the fruit carrier (6) to the upper part of the fruit carrier (12), the turnover mechanism (8) comprises a gear (81) outside the connecting shaft (7), one side of the connecting block (9) is provided with a connecting shaft (82), the outside of the connecting shaft (82) is provided with a stop rod (83), the inside of the stop rod (83) is provided with a spring (84), one end of the spring (84) is provided with a stop block (85), the stop rod (83) comprises a protruding part (86), one side of the connecting block (9) is provided with a fixed column (87) in contact with the protruding part (86); The upper part of the workbench (1) is provided with a plurality of tooth blocks (13), the tooth blocks (13) and the gear (81) are in meshing transmission, the gear (81) is fixedly connected with the connecting shaft (7), the fruit carrier (6) is fixedly connected with the connecting shaft (7), and the fruits on the upper part of the fruit carrier (6) are located in the central area of the fruit carrier (6); One side of the connecting plate (11) is provided with a connecting shaft (14), the outer wall of the connecting shaft (14) is provided with a fixed cylinder (15), the end of the fixed cylinder (15) is fixedly connected with the workbench (1), the inside of the fruit carrier (12) is provided with a connecting shaft (16), one end of the connecting shaft (16) is provided with a servo motor (17), the end of the connecting shaft (16) is fixedly connected with the shaft body of the servo motor (17) through a shaft coupling, the outer wall of the servo motor (17) is provided with a fixed frame (18), the outer wall of the connecting shaft (16) is provided with a connecting piece (19), the outer wall of the fixed frame (18) is provided with a connecting column (20), the outer wall of the connecting column (20) is provided with a clamping plate (21), the inside of the workbench (1) is provided with a sliding groove (22) for the sliding of the clamping plate (21), the torsional spring (24) is arranged between the connecting shaft (14) and the fixed cylinder (15), the elastic force of the torsional spring (24) is in a normal state, the connecting plate (11) is rotated to be parallel to the workbench (1), the upper part of the workbench (1) is provided with a control switch (25), the control switch (25) is electrically connected with the servo motor (17), and the end of the gear (81) is pressed by the control switch (25) during the meshing transmission between the gear (81) and the tooth block (13). One side of the carrier (5) is provided with a magnet one (26), one side of the connecting block two (10) is provided with a magnet two (27) which is mutually attracted with the magnet one (26), the magnetic force between the magnet one (26) and the magnet two (27) rotates the connecting plate (11) along the connecting shaft three (14) downward.

2. The fruit multi-layer detection device according to claim 1, characterized in that: The inner wall of the workbench (1) is provided with an arc-shaped slot (23) for the sliding of the connecting column (20), the arc-shaped trend of the arc-shaped slot (23) is an arc-shaped circle which rotates with the connecting shaft three (14) as the center.

3. The fruit multi-layer detection device according to claim 1, characterized in that: The overall shape of the connecting block one (9) and the connecting block two (10) are all inclined planes, the connecting block one (9) and the connecting block two (10) all include a side part (28) which resists the side of the fruit.

4. The fruit multi-layer detection device according to claim 1, characterized in that: The carrier (5) is shaped as an inclined plane which inclines to the center, the fruit drag one (6) is in the center area of the inclined plane shape of the carrier (5).

Citation Information

Patent Citations

  • Fruit sorting device based on image processing

    CN114247657A

  • Fruit grade grading device

    CN217774865U