Visual identification sorting device for fruit and vegetable maturity

Abstract

The invention relates to the technical field of fruit and vegetable processing equipment, in particular to a fruit and vegetable maturity visual identification sorting device which comprises a conveyor body, the output end of the conveyor body is fixedly connected with a hopper, the output end of the hopper is provided with a conical conveying mechanism, and the output end of the conical conveying mechanism is provided with a detection mechanism. The sorting mechanism is fixedly installed at the bottom end of the detection mechanism, the detection mechanism comprises a bottom plate, a clamping mechanism and a detection platform, the clamping mechanism is installed at the top end of the bottom plate and located at the output end of the conical conveying mechanism, and fruits and vegetables are automatically contracted and arranged through the conical conveying mechanism before entering a detection area and enter a cylinder in a single-row ordered posture; the problems of rolling deviation and uncontrollable postures of the fruits and vegetables easily caused by a straight conveying belt are avoided; when fruits and vegetables fall, a rectangular block slides along an inclined groove to compress a spring, a clamping silica gel plate is pushed to adaptively clamp the fruits and vegetables with different sizes, the fruits and vegetables are kept stable in the detection process, and image blurring caused by shaking and displacement is avoided; and grading damage is effectively avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fruit and vegetable processing equipment, and particularly relates to a fruit and vegetable maturity visual identification and sorting device. BACKGROUND

[0002] In the process of fruit and vegetable commercialization, maturity identification and grading and sorting are key links to ensure product quality and enhance commodity value. With the development of visual identification technology, automatic sorting equipment based on image acquisition has gradually been applied in the field of fruit and vegetable processing, and can realize non-contact grading according to the surface color and texture of fruit and vegetable.

[0003] However, the existing visual sorting equipment still has problems in actual application, such as uncontrollable feeding posture, easy shaking of fruit and vegetable during detection, inconvenient adjustment of imaging angle, and easy damage caused by grading execution. Since the shape of fruit and vegetable is irregular and the surface is smooth, rolling, deviation or stacking may occur on the flat conveying belt, resulting in random posture and unfixed position when entering the detection field, so that the industrial camera is difficult to stably capture the complete surface features. The detection station usually uses a simple bracket for bearing, and lacks effective clamping and positioning structure. Fruit and vegetable may easily shake and shift during conveying or shooting, causing image blur and difficulty in feature extraction. The detection device is usually fixedly installed, and it is difficult to adjust the imaging angle and light supplementing condition according to different fruit and vegetable varieties and sizes, which affects the universality and detection accuracy of the equipment. SUMMARY

[0004] In view of the above problems of sorting effect, the present application is proposed.

[0005] To solve the above technical problems, the present application provides the following technical scheme: a fruit and vegetable maturity visual identification and sorting device, comprising a conveyor body, a hopper fixedly connected to the output end of the conveyor body, a conical conveying mechanism installed at the output end of the hopper, a detection mechanism installed at the output end of the conical conveying mechanism, and a sorting mechanism fixedly installed at the bottom end of the detection mechanism.

[0006] The detection mechanism comprises a bottom plate, a clamping mechanism and a detection platform, the clamping mechanism is installed at the top end of the bottom plate, the clamping mechanism is located at the output end of the conical conveying mechanism, and the top end of the bottom plate is fixedly connected with the bottom end of the detection platform.

[0007] The clamping mechanism comprises two fixed blocks, a cylinder and two clamping silica gel plates for clamping fruit and vegetable, the inner wall of the cylinder is slidably connected with the clamping silica gel plates, the inner wall of the cylinder is provided with a first spring for pushing the clamping silica gel plates away from the fruit and vegetable, the inner wall of the cylinder is provided with a rectangular block for controlling the compression and release of the first spring, the bottom ends of the two fixed blocks are fixedly connected with the top end of the bottom plate, the fixed blocks are rotatably connected with the circumferential surface of the cylinder, and one end of the fixed block close to the cylinder is provided with an inclined groove slidably connected with the rectangular block.

[0008] The testing platform includes a fixture, a first testing head, a second testing head, and a supplementary light cover. The outer wall of the fixture is equipped with an adjustment knob for adjusting the angle of the first testing head.

[0009] As a preferred embodiment of the visual recognition and sorting device for fruit and vegetable maturity of the present invention, the conical conveying mechanism includes a conical plate and a conical conveyor belt. The outer wall of the conical plate is sleeved with the conical conveyor belt. The top of the bottom plate is fixedly connected to a drive motor for driving the cylinder to rotate. The inner wall of the cylinder has a through hole communicating with the circumferential surface.

[0010] As a preferred embodiment of the fruit and vegetable maturity visual recognition and sorting device of the present invention, a circular cylinder is fixedly connected to the end of the clamping silicone plate away from the fruit and vegetable, a fixed column is slidably connected to the inner wall of the circular cylinder, the end of the fixed column away from the clamping silicone plate is fixedly connected to the inner wall of the circular cylinder, and a first circular plate is fixedly connected to the end of the circular cylinder away from the clamping silicone plate.

[0011] As a preferred embodiment of the visual recognition and sorting device for fruit and vegetable maturity of the present invention, a second circular plate is slidably connected to the circumferential surface of the fixed column, a first spring is sleeved with the circumferential surface of the fixed column, the first spring is located between the first circular plate and the second circular plate, a rectangular through hole penetrating the circumferential surface of the cylinder is opened on the inner wall of the fixed column, and one end of the rectangular block is fixedly connected to the circumferential surface of the second circular plate.

[0012] As a preferred embodiment of the visual recognition and sorting device for fruit and vegetable maturity of the present invention, the bottom end of the fixing member is fixedly connected to the top end of the base plate, the first detection head is located above the cylinder, the second detection head is located above the base plate, the second detection head is fixedly connected to the inner wall of the fixing member, and the supplementary light cover is fixedly connected to the inner wall of the fixing member.

[0013] As a preferred embodiment of the visual recognition and sorting device for fruit and vegetable maturity of the present invention, a connecting cylinder is slidably connected to the inner wall of the fixing member, a first connecting rod is fixedly connected to the top end of the first detection head on the circumferential surface of the connecting cylinder, a fixing plate is fixedly connected to the inner wall of the fixing member, and toothed rings that mesh with each other are provided on both the connecting cylinder and the fixing plate. A second connecting rod that penetrates the fixing plate is fixedly connected to the end of the connecting cylinder near the adjustment knob, and one end of the second connecting rod is fixedly connected to one end of the adjustment knob. A second spring for pushing the connecting cylinder closer to the fixing plate is provided on the inner wall of the fixing member.

[0014] As a preferred embodiment of the visual recognition and sorting device for fruit and vegetable maturity of the present invention, the sorting mechanism includes a discharge channel, a conical block and a rotating conical block. The discharge channel divides the bottom plate into two channels. The inner wall of the discharge channel is fixedly connected to the bottom end of the conical block. The rotating conical block is located above the conical block. A micro motor electrically connected to the detection mechanism is fixedly connected to the bottom end of the discharge channel.

[0015] The beneficial effects of this invention are:

[0016] A conical conveyor mechanism automatically contracts and arranges fruits and vegetables before they enter the detection area, allowing them to enter the cylinder in a single, orderly row. This avoids the problems of rolling and uncontrollable posture that can occur with a straight conveyor belt. Inside the cylinder, a clamping silicone plate driven by a first spring is installed. When fruits and vegetables fall in, a rectangular block slides along an inclined groove, compressing the spring and pushing the clamping silicone plate to adaptively clamp fruits and vegetables of different sizes, maintaining stability during the detection process and preventing image blurring caused by shaking and displacement. The first detection head of the detection platform can be adjusted and locked at an angle via an adjustment knob and a toothed ring meshing structure. The second detection head works in conjunction with a supplementary light cover to meet the imaging needs of different varieties of fruits and vegetables, improving detection accuracy. The sorting mechanism controls the rotating conical block to guide the fruits and vegetables into the corresponding channels based on the detection data. The entire process does not require mechanical push rod contact, effectively avoiding damage during grading. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a cross-sectional structural diagram of the detection mechanism of the present invention.

[0020] Figure 3 This is a schematic diagram of the overall cylindrical structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the silicone plate clamping installation structure of the present invention.

[0022] Figure 5 This is a schematic diagram of the mounting structure of the fixing block of the present invention.

[0023] Figure 6 This is a schematic diagram of the mounting structure of the fastener of the present invention.

[0024] Figure 7 This is a schematic diagram of the installation structure of the adjustment knob of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Conveyor body; 2. Hopper; 3. Conical conveyor mechanism; 4. Detection mechanism; 5. Sorting mechanism; 6. Conical plate; 7. Conical conveyor belt; 8. Base plate; 9. Clamping mechanism; 10. Detection platform; 11. Light cover; 12. Discharge channel; 13. Conical block; 14. Rotating conical block; 15. Cylinder; 16. Clamping silicone plate; 17. Circular cylinder; 18. Fixed column; 19. First circular plate; 20. Second circular plate; 21. First spring; 22. Rectangular through hole; 23. Fixed block; 24. Inclined groove; 25. Rectangular block; 26. Fixing component; 27. First detection head; 28. Second detection head; 29. ​​Adjusting knob; 30. Fixed plate; 31. Connecting cylinder; 32. Second connecting rod; 33. Second spring; 34. Gear ring; 35. First connecting rod. Detailed Implementation

[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0027] Example 1

[0028] Reference Figures 1-5 The first embodiment of the present invention provides a visual recognition and sorting device for fruit and vegetable maturity, including a conveyor body 1, a hopper 2 fixedly connected to the output end of the conveyor body 1, a conical conveying mechanism 3 installed at the output end of the hopper 2, a detection mechanism 4 installed at the output end of the conical conveying mechanism 3, and a sorting mechanism 5 fixedly installed at the bottom end of the detection mechanism 4.

[0029] The testing mechanism 4 includes a base plate 8, a clamping mechanism 9, and a testing platform 10. The clamping mechanism 9 is installed on the top of the base plate 8 and is located at the output end of the conical conveying mechanism 3. The top of the base plate 8 is fixedly connected to the bottom of the testing platform 10.

[0030] The clamping mechanism 9 includes two fixing blocks 23, a cylinder 15, and two clamping silicone plates 16 for clamping fruits and vegetables. The inner wall of the cylinder 15 is slidably connected to the clamping silicone plates 16. The inner wall of the cylinder 15 is provided with a first spring 21 for pushing the clamping silicone plates 16 away from the fruits and vegetables. The inner wall of the cylinder 15 is provided with a rectangular block 25 for controlling the compression and release of the first spring 21. The bottom ends of the two fixing blocks 23 are fixedly connected to the top end of the base plate 8. The fixing blocks 23 are rotatably connected to the circumferential surface of the cylinder 15. The end of the fixing block 23 near the cylinder 15 is provided with an inclined groove 24 that is slidably connected to the rectangular block 25.

[0031] The testing platform 10 includes a fixing member 26, a first testing head 27, a second testing head 28, and a supplementary light cover 11. The outer wall of the fixing member 26 is provided with an adjustment knob 29 for adjusting the angle of the first testing head 27.

[0032] The conical conveying mechanism 3 includes a conical plate 6 and a conical conveyor belt 7. The outer wall of the conical plate 6 is sleeved with the conical conveyor belt 7. The top of the bottom plate 8 is fixedly connected to a drive motor for driving the cylinder 15 to rotate. The inner wall of the cylinder 15 has a through hole communicating with the circumferential surface.

[0033] A cylindrical tube 17 is fixedly connected to the end of the clamping silicone plate 16 away from the fruits and vegetables. A fixing post 18 is slidably connected to the inner wall of the cylindrical tube 17. The end of the fixing post 18 away from the clamping silicone plate 16 is fixedly connected to the inner wall of the cylindrical tube 15. A first circular plate 19 is fixedly connected to the end of the cylindrical tube 17 away from the clamping silicone plate 16.

[0034] The circumferential surface of the fixed column 18 is slidably connected to the second circular plate 20. The first spring 21 is sleeved with the circumferential surface of the fixed column 18. The first spring 21 is located between the first circular plate 19 and the second circular plate 20. The inner wall of the cylinder 15 corresponding to the fixed column 18 is provided with a rectangular through hole 22 that penetrates the circumferential surface of the cylinder 15. One end of the rectangular block 25 is fixedly connected to the circumferential surface of the second circular plate 20.

[0035] During use, when the drive motor drives the cylinder 15 to rotate, a through hole is provided on the circumferential surface of the cylinder 15. When the through hole rotates to align with the output end of the conical conveyor mechanism 3, the fruits and vegetables fall from the conical conveyor belt 7 into the inner wall of the cylinder 15. At the same time, the rectangular block 25 fixed to the inner wall of the cylinder 15 rotates with the cylinder 15 and slides along the inclined groove 24 on the fixed block 23. Since the inclined groove 24 is inclined, when the rectangular block 25 moves in the inclined groove 24, it will drive the second circular plate 20 fixedly connected to it to move towards the center of the cylinder 15.

[0036] The second circular plate 20 pushes the first circular plate 19 through the first spring 21. The first circular plate 19 drives the clamping silicone plate 16 to move towards the fruit and vegetables through the circular cylinder 17. The first spring 21 is compressed, and the resulting elastic force makes the clamping silicone plate 16 gently but firmly clamp the fruit and vegetables. Since the compression of the spring can be automatically adjusted according to the size of the fruit and vegetables, it can adapt to different sizes of fruit and vegetables, while avoiding the shaking of the fruit and vegetables during the detection process.

[0037] As the cylinder 15 continues to rotate, the rectangular block 25 moves along the inclined groove 24 to the end and begins to disengage from the inclined groove 24. At this time, the first spring 21 releases its elastic force, pushing the second circular plate 20 and the rectangular block 25 to reset. The rectangular block 25 returns to the starting position of the inclined groove 24, and the clamping silicone plate 16 is released. The fruits and vegetables fall downwards under the action of gravity. Throughout the process, the fruits and vegetables are automatically clamped when entering the cylinder 15 and automatically released after the detection is completed, realizing orderly and stable single fruit detection.

[0038] Example 2

[0039] Reference Figure 1 , Figure 2 ,Figure 3 , Figure 6 and Figure 7 In the second embodiment of the present invention, the bottom end of the fixing member 26 is fixedly connected to the top end of the base plate 8, the first detection head 27 is located above the cylinder 15, the second detection head 28 is located above the base plate 8, the second detection head 28 is fixedly connected to the inner wall of the fixing member 26, and the supplementary light cover 11 is fixedly connected to the inner wall of the fixing member 26.

[0040] A connecting cylinder 31 is slidably connected to the inner wall of the fixing member 26. A first connecting rod 35, which is fixedly connected to the top end of the first detection head 27, is fixedly connected to the circumferential surface of the connecting cylinder 31. A fixing plate 30 is fixedly connected to the inner wall of the fixing member 26. Both the connecting cylinder 31 and the fixing plate 30 are provided with meshing toothed rings 34. A second connecting rod 32, which passes through the fixing plate 30, is fixedly connected to one end of the connecting cylinder 31 near the adjusting knob 29. One end of the second connecting rod 32 is fixedly connected to one end of the adjusting knob 29. A second spring 33 is provided on the inner wall of the fixing member 26 for pushing the connecting cylinder 31 closer to the fixing plate 30.

[0041] The sorting mechanism 5 includes a discharge channel 12, a conical block 13, and a rotating conical block 14. The discharge channel 12 divides the base plate 8 into two channels. The inner wall of the discharge channel 12 is fixedly connected to the bottom end of the conical block 13. The rotating conical block 14 is located above the conical block 13. A micro motor that is electrically connected to the detection mechanism 4 is fixedly connected to the bottom end of the discharge channel 12.

[0042] During use, when it is necessary to adjust the shooting angle of the first detection head 27 according to the size or variety of fruits and vegetables, the operator presses the adjustment knob 29, which drives the connecting cylinder 31 to overcome the elastic force of the second spring 33 and move away from the fixed plate 30 through the second connecting rod 32, so that the toothed ring 34 on the connecting cylinder 31 disengages from the toothed ring 34 on the fixed plate 30.

[0043] At this time, rotating the adjustment knob 29 causes the second connecting rod 32 to drive the connecting cylinder 31 to rotate. The connecting cylinder 31, through the first connecting rod 35, drives the first detection head 27 to rotate, thereby changing its shooting angle. After adjusting to the required angle, the adjustment knob 29 is released, and the second spring 33 pushes the connecting cylinder 31 to reset. The two toothed rings 34 re-engage, locking the first detection head 27 in the adjusted position. The supplementary light cover 11 is activated at the same time to provide uniform illumination for the fruits and vegetables in the cylinder 15, ensuring clear image acquisition.

[0044] After the fruits and vegetables are clamped in the cylinder 15, they are subjected to dual detection by the first detection head 27 and the second detection head 28. The collected image data is analyzed by the control system to determine the maturity level of the fruits and vegetables. After the detection is completed, the fruits and vegetables fall from the bottom of the cylinder 15 into the sorting mechanism 5.

[0045] The discharge channel 12 in the sorting mechanism 5 divides the base plate 8 into two channels, each corresponding to a different grade. A micro motor is fixedly connected to the bottom of the discharge channel 12. This motor communicates with the detection mechanism 4 and controls the rotation of the rotating cone block 14 according to the detection results. When the fruits and vegetables fall, the rotating cone block 14 rotates to the corresponding angle according to the instructions, guiding the fruits and vegetables into the corresponding discharge channel 12 to achieve automatic sorting.

[0046] The remaining structure is the same as that in Example 1.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A visual recognition and sorting device for fruit and vegetable maturity, comprising a conveyor body (1), wherein a hopper (2) is fixedly connected to the output end of the conveyor body (1), characterized in that: The output end of the hopper (2) is equipped with a conical conveying mechanism (3), the output end of the conical conveying mechanism (3) is equipped with a detection mechanism (4), and the bottom end of the detection mechanism (4) is fixedly equipped with a sorting mechanism (5). The detection mechanism (4) includes a base plate (8), a clamping mechanism (9) and a detection platform (10). The clamping mechanism (9) is installed on the top of the base plate (8) and is located at the output end of the conical conveying mechanism (3). The top of the base plate (8) is fixedly connected to the bottom of the detection platform (10). The clamping mechanism (9) includes two fixing blocks (23), a cylinder (15), and two clamping silicone plates (16) for clamping fruits and vegetables. The inner wall of the cylinder (15) is slidably connected to the clamping silicone plates (16). The inner wall of the cylinder (15) is provided with a first spring (21) for pushing the clamping silicone plates (16) away from the fruits and vegetables. The inner wall of the cylinder (15) is provided with a rectangular block (25) for controlling the compression and release of the first spring (21). The bottom ends of the two fixing blocks (23) are fixedly connected to the top end of the base plate (8). The fixing blocks (23) are rotatably connected to the circumferential surface of the cylinder (15). The end of the fixing block (23) near the cylinder (15) is provided with an inclined groove (24) that is slidably connected to the rectangular block (25). The detection platform (10) includes a fixing member (26), a first detection head (27), a second detection head (28), and a supplementary light cover (11). The outer wall of the fixing member (26) is provided with an adjustment knob (29) for adjusting the angle of the first detection head (27).

2. The fruit and vegetable maturity visual recognition and sorting device according to claim 1, characterized in that: The conical conveying mechanism (3) includes a conical plate (6) and a conical conveyor belt (7). The outer wall of the conical plate (6) is sleeved with the conical conveyor belt (7). The top of the bottom plate (8) is fixedly connected to a drive motor for driving the cylinder (15) to rotate. The inner wall of the cylinder (15) is provided with a through hole communicating with the circumferential surface.

3. The fruit and vegetable maturity visual recognition and sorting device according to claim 1, characterized in that: The end of the clamping silicone plate (16) away from the fruit and vegetables is fixedly connected to a cylindrical tube (17). A fixing post (18) is slidably connected to the inner wall of the cylindrical tube (17). The end of the fixing post (18) away from the clamping silicone plate (16) is fixedly connected to the inner wall of the cylindrical tube (15). The end of the cylindrical tube (17) away from the clamping silicone plate (16) is fixedly connected to a first circular plate (19).

4. The fruit and vegetable maturity visual recognition and sorting device according to claim 3, characterized in that: The circumferential surface of the fixed column (18) is slidably connected to the second circular plate (20). The first spring (21) is sleeved with the circumferential surface of the fixed column (18). The first spring (21) is located between the first circular plate (19) and the second circular plate (20). The cylinder (15) is provided with a rectangular through hole (22) through the circumferential surface of the cylinder (15) corresponding to the inner wall of the fixed column (18). One end of the rectangular block (25) is fixedly connected to the circumferential surface of the second circular plate (20).

5. The fruit and vegetable maturity visual recognition and sorting device according to claim 1, characterized in that: The bottom end of the fixing member (26) is fixedly connected to the top end of the base plate (8), the first detection head (27) is located above the cylinder (15), the second detection head (28) is located above the base plate (8), the second detection head (28) is fixedly connected to the inner wall of the fixing member (26), and the supplementary light cover (11) is fixedly connected to the inner wall of the fixing member (26).

6. The fruit and vegetable maturity visual recognition and sorting device according to claim 5, characterized in that: The inner wall of the fixing member (26) is slidably connected to a connecting cylinder (31). The circumferential surface of the connecting cylinder (31) is fixedly connected to a first connecting rod (35) which is fixedly connected to the top end of the first detection head (27). The inner wall of the fixing member (26) is fixedly connected to a fixing plate (30). Both the connecting cylinder (31) and the fixing plate (30) are provided with meshing toothed rings (34). The end of the connecting cylinder (31) near the adjusting knob (29) is fixedly connected to a second connecting rod (32) that passes through the fixing plate (30). One end of the second connecting rod (32) is fixedly connected to one end of the adjusting knob (29). The inner wall of the fixing member (26) is provided with a second spring (33) for pushing the connecting cylinder (31) closer to the fixing plate (30).

7. The fruit and vegetable maturity visual recognition and sorting device according to claim 1, characterized in that: The sorting mechanism (5) includes a discharge channel (12), a conical block (13) and a rotating conical block (14). The discharge channel (12) divides the bottom plate (8) into two channels. The inner wall of the discharge channel (12) is fixedly connected to the bottom end of the conical block (13). The rotating conical block (14) is located above the conical block (13). The bottom end of the discharge channel (12) is fixedly connected to a micro motor that is electrically connected to the detection mechanism (4).

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