A fruit and vegetable conveying device with grading function

Abstract

The present application relates to fruit and vegetable conveying technical field, and discloses a fruit and vegetable conveying device with grading function, including base, installation vertical plate, the lower surface of installation vertical plate is fixedly connected with the upper surface of base, installation vertical plate is provided with two groups, a group of installation vertical plate is rotatably connected with drive rod, another group of installation vertical plate is rotatably connected with driven rod, the circumferential outer surface of drive rod and driven rod is fixedly connected with rotating chain disc, and drive rod and driven rod are rotatably connected with two rotating chains through rotating chain disc meshing connection.The fruit and vegetable conveying device with grading function can effectively solve the problems in the prior art, such as high labor intensity of manual sorting of fruits and vegetables, prone to sorting error, the need for secondary sorting, additional increase in labor cost and reduction in overall sorting efficiency.

Description

A fruit and vegetable conveying device with grading function Technical Field

[0001] This invention relates to the field of fruit and vegetable conveying technology, and specifically to a fruit and vegetable conveying device with a grading function. Background Technology

[0002] Fruit and vegetable conveyors are mechanical devices specifically designed for efficient material transfer in the harvesting, sorting, packaging, and storage of fruits and vegetables. By replacing manual handling with automated conveying systems, they significantly improve production efficiency and reduce labor costs. The working principle of chain plate fruit and vegetable conveyors is mainly based on the cooperation between chains and sprockets. The reciprocating motion of the chain provides traction power, which drives the chain plates to move, thereby realizing the conveying of fruits and vegetables. Through flexible conveying design, the pressure intensity of fruits and vegetables during the conveying process is reduced, thereby reducing the risk of mechanical damage and contamination.

[0003] Currently, in the process of transporting fruits and vegetables, fruit and vegetable conveyors are usually used to transfer them from one workstation to another. Then, people manually sort the fruits and vegetables of different sizes and classify them according to different size grades in order to meet various market demands and increase the market value and sales price of fruits and vegetables. However, when faced with large-scale fruit and vegetable sorting tasks, manual sorting is labor-intensive and prone to sorting errors, requiring secondary sorting and adding extra time costs. Summary of the Invention

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a fruit and vegetable conveying device with grading function, which can effectively solve the problems of high labor intensity, easy sorting errors, need for secondary sorting and manual inspection, additional time cost, and reduced overall sorting efficiency in the existing technology.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] This invention provides a fruit and vegetable conveying device with a grading function, comprising:

[0007] Base;

[0008] The mounting plate has its lower surface fixedly connected to the upper surface of the base. There are two sets of mounting plates. One set of mounting plates is rotatably connected to a drive rod, and the other set of mounting plates is rotatably connected to a driven rod. Rotating chain disks are fixedly connected to the outer circumference of both the drive rod and the driven rod. The drive rod and the driven rod are meshed with two rotating chains through the rotating chain disks.

[0009] The feeding unit includes a feeding basket, which is rotatably connected between two rotating chains. Two partitions are fixedly connected to the inner wall of the feeding basket, and an arc-shaped opening and closing plate is slidably arranged between the two partitions.

[0010] During the reciprocating motion of the feeding unit driven by the rotating chain, the arc-shaped opening and closing plate opens gaps of different sizes, so that fruits and vegetables of different diameters can fall down through the gaps of different sizes in sequence.

[0011] Furthermore, the outer surface of the partition is provided with a pull hole, and the partition is slidably connected to a pull bottom rod and a pull top rod through the pull hole, and the arc-shaped opening and closing plate is rotatably sleeved on the outer circumferential surface of the pull bottom rod and the pull top rod.

[0012] Furthermore, the arc-shaped opening and closing plate includes a first arc-shaped plate and a second arc-shaped plate. The first arc-shaped plate is slidably connected to the partition by pulling the bottom rod and pulling the top rod, and the second arc-shaped plate is slidably connected to the partition by pulling the bottom rod and pulling the top rod.

[0013] Furthermore, a rotating shaft block is rotatably connected to the inner wall of the feeding basket, and a push-pull handle is rotatably connected to the end of the rotating shaft block away from the feeding basket. The end of the push-pull handle away from the rotating shaft block is rotatably connected to the pull bottom rod. An angle adjustment frame is rotatably sleeved on the outer circumference of the drive rod and the driven rod.

[0014] Furthermore, a hexagonal arc block is fixedly connected to the outer circumference of the rotating shaft block, a first limiting wheel is rotatably sleeved on the outer circumference of the driving rod, and a second limiting wheel is rotatably sleeved on the outer circumference of the driven rod.

[0015] Furthermore, a gear is fixedly connected to the outer circumference of the rotating shaft block, a first tooth block, a second tooth block, and a third tooth block are fixedly connected to the upper half of the angle adjustment frame, and a fourth tooth block is fixedly connected to the lower half of the angle adjustment frame.

[0016] Furthermore, a hexagonal flat block is fixedly connected to the outer circumference of the rotating shaft block, and a first flat bar, a second flat bar, a third flat bar, and a fourth flat bar are fixedly connected to the upper half of the angle adjustment frame, and a fifth flat bar and a sixth flat bar are fixedly connected to the lower half of the angle adjustment frame.

[0017] Furthermore, a U-shaped support rod is fixedly connected to the upper surface of the base, and a limiting support frame is fixedly connected to the horizontal section of the U-shaped support rod. The two horizontal sections of the limiting support frame are in contact with the bottom of the upper half and the top of the lower half of the rotating chain, respectively.

[0018] Furthermore, a fruit frame is fixedly connected to the upper surface of the base, and a receiving slide is fixedly connected between the fruit frame and the angle adjustment frame.

[0019] Furthermore, a drive motor is fixedly connected to the outer surface of the mounting plate near the drive rod. The output end of the drive motor passes through the mounting plate and is fixedly connected to the drive rod. A transmission belt is sleeved between the drive rod and the driven rod.

[0020] The technical solution provided by this invention has the following advantages compared with the prior art:

[0021] This invention, through the setting of a feeding unit, during the process of conveying fruits and vegetables to a fruit crate, uses a first toothed block to achieve the initial separation of the first and second arc-shaped plates. The arc-shaped opening and closing plate opens a small gap, through which smaller fruits and vegetables fall into the fruit crate. A second toothed block achieves the second separation of the first and second arc-shaped plates, opening a larger gap, through which larger fruits and vegetables fall into the fruit crate. A third toothed block achieves the third separation of the first and second arc-shaped plates, opening an even larger gap, through which even larger fruits and vegetables fall into the fruit crate. This fruit and vegetable conveying device grades and feeds fruits and vegetables of different sizes in batches, thereby reducing the labor intensity of workers, shortening the time cost of fruit and vegetable sorting, and thus improving overall efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0024] Figure 2 is a schematic diagram of the structure of the feeding basket according to an embodiment of the present invention;

[0025] Figure 3 is a schematic diagram of the drive motor according to an embodiment of the present invention;

[0026] Figure 4 is a schematic diagram of the structure of the first limiting wheel in an embodiment of the present invention;

[0027] Figure 5 is a schematic diagram of the angle adjustment frame according to an embodiment of the present invention;

[0028] Figure 6 is a schematic diagram of the arc-shaped opening and closing plate according to an embodiment of the present invention;

[0029] Figure 7 is a schematic diagram of the structure of the pull rod according to an embodiment of the present invention;

[0030] Figure 8 is a schematic diagram of the structure of the second limiting wheel in an embodiment of the present invention;

[0031] Figure 9 is a schematic diagram of the fruit frame structure according to an embodiment of the present invention;

[0032] Figure 10 is an enlarged structural diagram of point A in Figure 5;

[0033] Figure 11 is an enlarged structural diagram of point B in Figure 5;

[0034] Figure 12 is an enlarged structural diagram of point C in Figure 5;

[0035] Figure 13 is an enlarged structural diagram of point D in Figure 5.

[0036] The labels in the diagram represent: 1. Base; 2. Mounting plate; 21. Drive rod; 22. Driven rod; 23. Rotating sprocket; 24. Rotating chain; 3. Feeding unit; 31. Feeding basket; 32. Partition; 33. Arc-shaped opening and closing plate; 331. First arc-shaped plate; 332. Second arc-shaped plate; 34. Pulling hole; 341. Pulling bottom rod; 342. Pulling top rod; 4. Rotating shaft block; 41. Hexagonal arc block; 411. First limiting wheel; 412. Second limiting wheel; 4 2. Gear; 421. First gear block; 422. Second gear block; 423. Third gear block; 424. Fourth gear block; 43. Hexagonal flat block; 431. First flat bar; 432. Second flat bar; 433. Third flat bar; 434. Fourth flat bar; 435. Fifth flat bar; 436. Sixth flat bar; 44. Push-pull handle; 45. Angle adjustment frame; 5. U-shaped support rod; 51. Limiting support frame; 6. Fruit crate; 61. Receiving slide plate; 7. Drive motor; 71. Transmission belt. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] The present invention will be further described below with reference to embodiments.

[0039] Example:

[0040] Please refer to Figures 1-13. This invention provides a technical solution: a fruit and vegetable conveying device with a grading function, comprising:

[0041] Base 1;

[0042] Mounting plate 2, the lower surface of mounting plate 2 is fixedly connected to the upper surface of base 1. There are two sets of mounting plates 2. One set of mounting plates 2 is rotatably connected to a drive rod 21, and the other set of mounting plates 2 is rotatably connected to a driven rod 22. Rotating chain 23 is fixedly connected to the outer circumference of both drive rod 21 and driven rod 22. Two rotating chains 24 are meshed between drive rod 21 and driven rod 22 through rotating chain 23.

[0043] The feeding unit 3 includes a feeding basket 31, which is rotatably connected between two rotating chains 24. Two partitions 32 are fixedly connected to the inner wall of the feeding basket 31, and an arc-shaped opening and closing plate 33 is slidably arranged between the two partitions 32.

[0044] During the reciprocating motion of the feeding unit 3 driven by the rotating chain 24, the arc-shaped opening and closing plate 33 opens gaps of different sizes, so that fruits and vegetables of different diameters fall down through the gaps of different sizes in sequence.

[0045] A pull hole 34 is provided on the outer surface of the partition 32. The partition 32 is slidably connected to the pull bottom rod 341 and the pull top rod 342 through the pull hole 34. The arc-shaped opening and closing plate 33 is rotatably sleeved on the outer circumferential surface of the pull bottom rod 341 and the pull top rod 342.

[0046] The arc-shaped opening and closing plate 33 includes a first arc-shaped plate 331 and a second arc-shaped plate 332. The first arc-shaped plate 331 is slidably connected to the partition plate 32 by pulling the bottom rod 341 and pulling the top rod 342. The second arc-shaped plate 332 is slidably connected to the partition plate 32 by pulling the bottom rod 341 and pulling the top rod 342.

[0047] The inner wall of the feeding basket 31 is rotatably connected to a rotating shaft block 4. The end of the rotating shaft block 4 away from the feeding basket 31 is rotatably connected to a push-pull handle 44. The end of the push-pull handle 44 away from the rotating shaft block 4 is rotatably connected to a pull bottom rod 341. An angle adjustment frame 45 is rotatably sleeved on the outer circumference of the drive rod 21 and the driven rod 22.

[0048] A hexagonal arc block 41 is fixedly connected to the outer circumference of the rotating shaft block 4, a first limiting wheel 411 is rotatably sleeved on the outer circumference of the driving rod 21, and a second limiting wheel 412 is rotatably sleeved on the outer circumference of the driven rod 22.

[0049] A gear 42 is fixedly connected to the outer circumference of the rotating shaft block 4. The upper half of the angle adjustment frame 45 is fixedly connected to the first tooth block 421, the second tooth block 422 and the third tooth block 423 respectively. The lower half of the angle adjustment frame 45 is fixedly connected to the fourth tooth block 424.

[0050] A hexagonal flat block 43 is fixedly connected to the outer circumference of the rotating shaft block 4. The upper half of the angle adjustment frame 45 is fixedly connected to the first flat bar 431, the second flat bar 432, the third flat bar 433 and the fourth flat bar 434 respectively. The lower half of the angle adjustment frame 45 is fixedly connected to the fifth flat bar 435 and the sixth flat bar 436 respectively.

[0051] A U-shaped support rod 5 is fixedly connected to the upper surface of the base 1. A limiting support frame 51 is fixedly connected to the horizontal section of the U-shaped support rod 5. The two horizontal sections of the limiting support frame 51 are in contact with the bottom of the upper half and the top of the lower half of the rotating chain 24, respectively.

[0052] A fruit frame 6 is fixedly connected to the upper surface of the base 1, and a receiving slide plate 61 is fixedly connected between the fruit frame 6 and the angle adjustment frame 45.

[0053] A drive motor 7 is fixedly connected to the outer surface of the mounting plate 2 near the drive rod 21. The output end of the drive motor 7 passes through the mounting plate 2 and is fixedly connected to the drive rod 21. A transmission belt 71 is sleeved between the drive rod 21 and the driven rod 22.

[0054] Working principle:

[0055] Reciprocating motion of feeding unit 3:

[0056] In practical applications, by starting the drive motor 7, the drive motor 7 drives the drive rod 21 to rotate between a set of mounting plates 2 through the output end. Under the transmission action of the transmission belt 71, the rotating drive rod 21 drives the driven rod 22 to rotate synchronously between another set of mounting plates 2 through the transmission belt 71. The rotating drive rod 21 and the rotating driven rod 22 drive four rotating chain discs 23 to rotate at the same speed. The four rotating chain discs 23 drive two rotating chains 24 to reciprocate. Under the opening action of the limiting support frame 51, the upper and lower halves of the two rotating chains 24 move in the horizontal direction. The two rotating chains 24 drive multiple feeding units 3 to reciprocate between the two sets of mounting plates 2.

[0057] The feeding process of feeding unit 3:

[0058] In practical applications, when the feeding unit 3 is directly above the drive rod 21, the arc-shaped opening and closing plate 33 is in a closed state (the first arc-shaped plate 331 and the second arc-shaped plate 332 remain in contact). The fruits and vegetables are placed horizontally on the closed arc-shaped opening and closing plate 33. The two rotating chains 24 drive the feeding unit 3 and the fruits and vegetables to move towards the fruit frame 6. The feeding basket 31 drives the four rotating shaft blocks 4 on its inner wall to move horizontally. The four rotating shaft blocks 4 drive the hexagonal flat blocks 43 on their outer circumference to move along the upper surface of the first flat bar 431. Under the limiting action of the hexagonal flat blocks 43 and the first flat bar 431, the rotation angle of the rotating shaft blocks 4 is limited (preventing the rotating shaft blocks 4 from rotating around their own axis). This fixes the positions of the first arc-shaped plate 331 and the second arc-shaped plate 332 on the two partitions 32 (the arc-shaped opening and closing plate 33 remains in a closed state). The feeding basket 31 drives the fruits and vegetables to move towards the fruit frame 6 through the closed arc-shaped opening and closing plate 33.

[0059] The initial feeding process of feeding unit 3:

[0060] In practical applications, after the feeding basket 31 drives the hexagonal flat block 43 to separate from the first flat bar 431 via the rotating shaft block 4, the first flat bar 431 releases its restriction on the hexagonal flat block 43 and the rotating shaft block 4. The feeding basket 31 continues to drive the rotating shaft block 4 to move horizontally. The rotating shaft block 4 drives the gear 42 on its outer circumference to move horizontally, so that the gear 42 meshes with the first toothed block 421. Under the meshing action of the gear 42 and the first toothed block 421, the first toothed block 421 pushes the gear 42 and the rotating shaft block 4 to rotate around its own axis by a certain angle. The rotating shaft block 4 then drives the push-pull handle 44. One end of the handle rotates around the axis of the rotating shaft block 4, and the other end of the push-pull handle 44 drives the pull rod 341 to slide along the pull hole 34. Under the limiting action of the pull hole 34, the pull rod 341 drives the first arc plate 331 and the second arc plate 332 to move in opposite directions in the horizontal direction. The first arc plate 331 and the second arc plate 332 are separated by a small distance, so that the arc opening and closing plate 33 opens a small gap. Under the action of gravity, small fruits and vegetables fall down onto the receiving slide plate 61 through the small gap. Small fruits and vegetables fall into the inside of the fruit box 6 along the receiving slide plate 61.

[0061] As a further embodiment of the present invention, after the rotating shaft block 4 drives the gear 42 to separate from the first tooth block 421, the feeding basket 31 continues to drive the rotating shaft block 4 to move in the horizontal direction. The rotating shaft block 4 drives the hexagonal flat block 43 to contact the second flat bar 432 and drives the hexagonal flat block 43 to move along the upper surface of the second flat bar 432. Under the limiting action of the hexagonal flat block 43 and the second flat bar 432, the rotation angle of the rotating shaft block 4 is limited (preventing the rotating shaft block 4 from rotating around its own axis), thereby fixing the position of the first arc plate 331 and the second arc plate 332 on the two partitions 32 (the arc opening and closing plate 33 continues to open a small gap).

[0062] The second feeding process of feeding unit 3:

[0063] In practical applications, after the feeding basket 31 drives the hexagonal flat block 43 to separate from the second flat bar 432 via the rotating shaft block 4, the second flat bar 432 releases the restriction on the hexagonal flat block 43 and the rotating shaft block 4. The feeding basket 31 continues to drive the rotating shaft block 4 to move horizontally. The rotating shaft block 4 drives the gear 42 to move horizontally, so that the gear 42 meshes with the second toothed block 422. Under the meshing action of the gear 42 and the second toothed block 422, the second toothed block 422 pushes the gear 42 and the rotating shaft block 4 to rotate around its own axis again by a certain angle. The rotating shaft block 4 then drives the push-pull handle 4. One end of 4 rotates again around the axis of the rotating shaft block 4, and the other end of the push-pull handle 44 drives the bottom rod 341 to slide along the pull hole 34. The bottom rod 341 drives the first arc plate 331 and the second arc plate 332 to move in opposite directions in the horizontal direction. The first arc plate 331 and the second arc plate 332 are separated by a large distance, so that the arc opening and closing plate 33 opens a large gap. Under the action of gravity, the larger fruits and vegetables fall down onto the receiving slide plate 61 through the large gap. The larger fruits and vegetables fall into the inside of the fruit box 6 along the receiving slide plate 61.

[0064] As a further embodiment of the present invention, after the rotating shaft block 4 drives the gear 42 to separate from the second tooth block 422, the feeding basket 31 continues to drive the rotating shaft block 4 to move in the horizontal direction. The rotating shaft block 4 drives the hexagonal flat block 43 to contact the third flat bar 433 and drives the hexagonal flat block 43 to move along the upper surface of the third flat bar 433. Under the limiting action of the hexagonal flat block 43 and the third flat bar 433, the rotation angle of the rotating shaft block 4 is limited (preventing the rotating shaft block 4 from rotating around its own axis), thereby fixing the positions of the first arc plate 331 and the second arc plate 332 on the two partitions 32 (the arc opening and closing plate 33 continues to open a large gap).

[0065] The third feeding process of feeding unit 3:

[0066] In practical applications, after the feeding basket 31 drives the hexagonal flat block 43 to separate from the third flat bar 433 via the rotating shaft block 4, the limiting effect of the third flat bar 433 on the hexagonal flat block 43 and the rotating shaft block 4 is released. The feeding basket 31 continues to drive the rotating shaft block 4 to move horizontally, and the rotating shaft block 4 drives the gear 42 to move horizontally, so that the gear 42 meshes with the third toothed block 423. Under the meshing action of the gear 42 and the third toothed block 423, the third toothed block 423 pushes the gear 42 and the rotating shaft block 4 to rotate. The moving shaft block 4 drives the bottom rod 341 to slide along the pulling hole 34 via the push-pull handle 44. The bottom rod 341 drives the first arc plate 331 and the second arc plate 332 to continue moving in opposite directions. The first arc plate 331 and the second arc plate 332 are separated by a larger distance, so that the arc opening and closing plate 33 opens a larger gap. Under the action of gravity, larger fruits and vegetables fall down onto the receiving slide plate 61 through the larger gap. The larger fruits and vegetables fall into the inside of the fruit box 6 along the receiving slide plate 61.

[0067] As a further embodiment of the present invention, after the rotating shaft block 4 drives the gear 42 to separate from the third gear block 423, the feeding basket 31 continues to drive the rotating shaft block 4 to move horizontally. The rotating shaft block 4 drives the hexagonal flat block 43 to contact the fourth flat bar 434 and drives the hexagonal flat block 43 to move along the upper surface of the fourth flat bar 434. Under the limiting action of the hexagonal flat block 43 and the fourth flat bar 434, the rotation angle of the rotating shaft block 4 is limited (to prevent the rotating shaft block 4 from rotating around its own axis). After the rotating shaft block 4 drives the hexagonal flat block 43 to separate from the fourth flat bar 434, the limiting action of the fourth flat bar 434 on the hexagonal flat block 43 and the rotating shaft block 4 is released. At this time, the feeding basket 31 drives the rotating shaft block 4 to rotate downward around the axis of the rotating chain 23. The hexagonal arc block 41 on its outer circumference moves along the outer circumference of the second limiting wheel 412. Under the limiting action of the hexagonal arc block 41 and the second limiting wheel 412, the rotation angle of the rotating shaft block 4 is limited (preventing the rotating shaft block 4 from rotating around its own axis). After the rotating shaft block 4 drives the hexagonal arc block 41 to separate from the second limiting wheel 412, the limiting action of the second limiting wheel 412 on the hexagonal arc block 41 and the rotating shaft block 4 is released. At this time, the rotating shaft block 4 drives the hexagonal flat block 43 to contact the fifth flat bar 435 and drives the hexagonal flat block 43 to move along the lower surface of the fifth flat bar 435. Under the limiting action of the hexagonal flat block 43 and the fifth flat bar 435, the rotation angle of the rotating shaft block 4 is limited (preventing the rotating shaft block 4 from rotating around its own axis).

[0068] The reset process of feeding unit 3:

[0069] In practical applications, after the rotating shaft block 4 drives the hexagonal flat block 43 to separate from the fifth flat bar 435, the fifth flat bar 435 releases the restriction on the rotating shaft block 4. The rotating shaft block 4 drives the gear 42 to mesh with the fourth tooth block 424. Under the meshing action of the gear 42 and the fourth tooth block 424, the fourth tooth block 424 pushes the gear 42 and the rotating shaft block 4 to rotate. The rotating shaft block 4 drives the pull rod 341 to slide along the pull hole 34 through the push-pull handle 44. The pull rod 341 drives the first arc plate 331 and the second arc plate 332 to move towards each other, so that the arc opening and closing plate 33 is closed again.

[0070] As a further embodiment of the present invention, after the rotating shaft block 4 drives the gear 42 to separate from the fourth tooth block 424, the rotating shaft block 4 drives the hexagonal flat block 43 to contact the sixth flat bar 436 and drives the hexagonal flat block 43 to move along the lower surface of the sixth flat bar 436, thereby limiting the rotation angle of the rotating shaft block 4. After the rotating shaft block 4 drives the hexagonal flat block 43 to separate from the sixth flat bar 436, at this time, the feeding basket 31 drives the rotating shaft block 4 to rotate upward around the axis of the rotating chain 23. The rotating shaft block 4 drives the hexagonal arc block 41 to move along the outer circumference of the first limiting wheel 411. Under the limiting action of the hexagonal arc block 41 and the first limiting wheel 411, the rotation angle of the rotating shaft block 4 is limited (preventing the rotating shaft block 4 from rotating around its own axis) until the arc-shaped opening and closing plate 33 is in the closed state and is again located directly above the drive rod 21.

[0071] By setting up the feeding unit 3, during the process of feeding fruits and vegetables to the fruit basket 6, the first toothed block 421 completes the initial separation of the first arc plate 331 and the second arc plate 332, and the arc-shaped opening and closing plate 33 opens a small gap, through which smaller fruits and vegetables fall into the interior of the fruit basket 6. By setting up the second toothed block 422, the first arc plate 331 and the second arc plate 332 are separated for the second time, and the arc-shaped opening and closing plate 33 opens a larger gap, through which larger fruits and vegetables fall into the interior of the fruit basket 6. By setting up the third toothed block 423, the first arc plate 331 and the second arc plate 332 are separated for the third time, and the arc-shaped opening and closing plate 33 opens an even larger gap, through which even larger fruits and vegetables fall into the interior of the fruit basket 6. By setting up the fourth toothed block 424, the first arc plate 331 and the second arc plate 332 are closed, so that the closed arc-shaped opening and closing plate 33 can continue to feed new fruits and vegetables.

[0072] 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 the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fruit and vegetable conveying device with grading function, characterized in that, include: Base (1); Mounting plate (2), the lower surface of the mounting plate (2) is fixedly connected to the upper surface of the base (1), the mounting plate (2) is provided in two sets, one set of the mounting plates (2) is rotatably connected to a drive rod (21), the other set of the mounting plates (2) is rotatably connected to a driven rod (22), the outer circumferential surfaces of the drive rod (21) and the driven rod (22) are both fixedly connected to a rotating chain (23), the drive rod (21) and the driven rod (22) are meshed with two rotating chains (24) through the rotating chain (23); Feeding unit (3), the feeding unit (3) includes a feeding basket (31), the feeding basket (31) is rotatably connected to two rotating chains (24). Between the chains (24), two partitions (32) are fixedly connected to the inner wall of the feeding basket (31), and an arc-shaped opening and closing plate (33) is slidably arranged between the two partitions (32); wherein, during the process of the rotating chain (24) driving the feeding unit (3) to reciprocate, the arc-shaped opening and closing plate (33) is driven to open gaps of different sizes, so that fruits and vegetables of different diameters fall down through gaps of different sizes in sequence; the outer surface of the partition (32) is provided with a pulling hole (34), and the partition (32) is slidably connected to a pulling bottom rod (341) and a pulling top rod (342) through the pulling hole (34), and the arc-shaped opening and closing plate (33) is rotatably sleeved on the pulling bottom rod (341) and the pulling top rod (342). The outer circumferential surface of 342); the arc-shaped opening and closing plate (33) includes a first arc plate (331) and a second arc plate (332), the first arc plate (331) is slidably connected to the partition plate (32) by pulling the bottom rod (341) and pulling the top rod (342), the second arc plate (332) is slidably connected to the partition plate (32) by pulling the bottom rod (341) and pulling the top rod (342); the inner wall of the feeding basket (31) is rotatably connected to a rotating shaft block (4), the end of the rotating shaft block (4) away from the feeding basket (31) is rotatably connected to a push-pull handle (44), the end of the push-pull handle (44) away from the rotating shaft block (4) is rotatably connected to the pulling bottom rod (341), the drive An angle adjustment frame (45) is rotatably sleeved on the outer circumference of the moving rod (21) and the driven rod (22); a hexagonal arc block (41) is fixedly connected to the outer circumference of the rotating shaft block (4); a first limiting wheel (411) is rotatably sleeved on the outer circumference of the driving rod (21); a second limiting wheel (412) is rotatably sleeved on the outer circumference of the driven rod (22); a gear (42) is fixedly connected to the outer circumference of the rotating shaft block (4); a first tooth block (421), a second tooth block (422), and a third tooth block (423) are fixedly connected to the upper half of the angle adjustment frame (45); and a fourth tooth block (424) is fixedly connected to the lower half of the angle adjustment frame (45).A hexagonal flat block (43) is fixedly connected to the outer circumference of the rotating shaft block (4). The upper half of the angle adjustment frame (45) is fixedly connected to a first flat bar (431), a second flat bar (432), a third flat bar (433), and a fourth flat bar (434). The lower half of the angle adjustment frame (45) is fixedly connected to a fifth flat bar (435) and a sixth flat bar (436).

2. The fruit and vegetable conveying device with grading function according to claim 1, characterized in that: A U-shaped support rod (5) is fixedly connected to the upper surface of the base (1). A limiting support frame (51) is fixedly connected to the horizontal section of the U-shaped support rod (5). The two horizontal sections of the limiting support frame (51) are in contact with the bottom of the upper half and the top of the lower half of the rotating chain (24), respectively.

3. A fruit and vegetable conveying device with grading function according to claim 2, characterized in that: A fruit frame (6) is fixedly connected to the upper surface of the base (1), and a receiving slide plate (61) is fixedly connected between the fruit frame (6) and the angle adjustment frame (45).

4. A fruit and vegetable conveying device with grading function according to claim 3, characterized in that: A drive motor (7) is fixedly connected to the outer surface of the mounting plate (2) near the drive rod (21). The output end of the drive motor (7) passes through the mounting plate (2) and is fixedly connected to the drive rod (21). A transmission belt (71) is sleeved between the drive rod (21) and the driven rod (22).

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