A vegetable seedling grafting device

Abstract

This invention provides a vegetable seedling grafting device, relating to the field of agricultural machinery technology. It includes a vegetable seedling cutting mechanism, a conveyor belt mechanism, and a grafting mechanism. The vegetable seedling cutting mechanism includes a scion grafting knife and a rootstock grafting knife. The scion conveyor belt and the rootstock conveyor belt are arranged vertically and operate synchronously. The scion conveyor belt consists of a scion true leaf end conveyor belt and a scion rootstock end conveyor belt with the same level of drive. The rootstock conveyor belt also consists of a rootstock true leaf end conveyor belt and a rootstock rootstock end conveyor belt with the same level of drive. The scion true leaf end conveyor belt and the scion rootstock end conveyor belt are arranged side-by-side and coplanar. After passing through the scion cutting station, the scion true leaf end conveyor belt tilts downwards and is arranged coplanar with the rootstock rootstock end conveyor belt, allowing the scion true leaf end and the rootstock rootstock end to align before passing through the grafting station. This device occupies little space, and can complete the cutting, grafting, and splicing work using a single set of transport equipment. It has low error and is convenient to use.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to a vegetable seedling grafting device. Background Technology

[0002] Vegetable seedling grafting involves connecting the true leaf tip or bud tip of one vegetable seedling to the hypocotyl of another seedling, thus combining them into a single seedling. In the field of vegetable seedling grafting technology, the part of the grafted plant being grafted is called the scion, and the part receiving the scion is called the rootstock. The rootstock constitutes the lower root system, and the scion constitutes the upper part. Grafting is a crucial technique in vegetable production to overcome soil-related continuous cropping obstacles and diseases caused by high temperature and humidity. Currently, the production of grafted vegetable seedlings mainly relies on manual labor, which is inefficient and costly, significantly hindering the development of large-scale grafted seedling production. Vegetable seedling grafting machines can effectively reduce the labor intensity of manual grafting and improve grafting efficiency. Automated grafting machines for vegetable seedlings are characterized by high operating speed, simple structure, and ease of operation. For example, the automated grafting machine for vegetable seedlings disclosed in application number 2019103115312.4, titled "Automatic Grafting Method for Multiple Seedlings Simultaneously Cleft Grafting in Plug Trays," often uses separate cutting and transport of rootstock and scion to the grafting site. However, during seedling transport, errors in the transport speed of rootstock and scion are prone to occur due to transport and displacement in different directions, leading to misalignment at the grafting site and affecting the grafting success rate and seedling survival rate. Furthermore, each area requires independent space, occupying a large area. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides a vegetable seedling grafting device that occupies little area, and can complete the cutting, pasting and grafting work using a set of transportation equipment, with small error and convenient use.

[0004] To achieve the above technical objectives, the adopted technical solution is as follows: a vegetable seedling grafting device, comprising a vegetable seedling cutting mechanism, a conveyor belt mechanism, and a grafting mechanism. The vegetable seedling cutting mechanism includes a scion seedling grafting knife for cutting scions and a rootstock seedling grafting knife for cutting rootstocks. The scion seedling grafting knife is located above the scion cutting station, and the rootstock seedling grafting knife is located at the rootstock cutting station. The conveyor belt mechanism includes a scion seedling conveyor belt for transporting scion seedlings and a rootstock conveyor belt for transporting rootstock seedlings. The scion seedling conveyor belt is provided with a scion cutting station and a grafting station, and the rootstock conveyor belt is provided with a rootstock cutting station and a grafting station. Above the grafting station is a device for grafting the scion seedlings. The grafting mechanism fixes the true leaf end of the scion and the rootstock rhizome end. The scion conveyor belt and the rootstock conveyor belt are arranged vertically and operate synchronously. The scion conveyor belt consists of a scion true leaf end conveyor belt and a scion rootstock rhizome end conveyor belt with the same level of drive. The rootstock conveyor belt consists of a rootstock true leaf end conveyor belt and a rootstock rhizome end conveyor belt with the same level of drive. The front ends of the rootstock true leaf end conveyor belt and the rootstock rhizome end conveyor belt are coplanar and the rear ends are separated. The scion true leaf end conveyor belt and the rootstock rhizome end conveyor belt are coplanar and arranged side by side. After passing through the scion shearing station, the scion true leaf end conveyor belt is inclined downward and arranged coplanar with the rootstock rhizome end conveyor belt, so that the scion true leaf end and the rootstock rhizome end are connected and then pass through the grafting station.

[0005] Beneficial effects: The scion conveyor belt and rootstock conveyor belt are arranged vertically, eliminating the need for large-area, flat, assembly-line conveyor systems and saving space. All four conveyor belts share the same power source and drive system, ensuring consistent seedling transport speed and preventing belt slippage, which improves the accuracy of seedling grafting and cutting. The cleverly designed downward-sloping scion leaf end conveyor belt automatically grafts the scion leaf end onto the rootstock rootstock end, preventing damage caused by multiple movements.

[0006] Furthermore, the grafting knife for scion seedlings and / or grafting knife for rootstock seedlings is driven by a vertical drive mechanism to move up and down reciprocally, and its blade head is V-shaped.

[0007] Beneficial effects: By combining the speed of the V-shaped grafting cutter moving up and down with the transmission effect of the conveyor belt, transmission and cutting can be carried out in parallel, resulting in high grafting efficiency. Furthermore, the V-shaped cut surface ensures a better fit between the true leaf end of the scion and the rootstock end, eliminating alignment errors and increasing the grafting success rate.

[0008] Furthermore, there is an angle between the plane where the cutting edge of the blade is located and the transmission plane, the larger end of the cutting edge is closer to the transmission plane than the smaller end, and the outer or inner surface of the blade has a bevel extending to the cutting edge.

[0009] Beneficial effects: The grafting knife gradually cuts into the seedling stem with its tip, minimizing the instantaneous shear stress on the stem and reducing damage. The grafting knife has both outer and inner bevels, which further reduces pressure on the rootstock rootstock tip and the true leaf tip of the scion stem during cutting.

[0010] Furthermore, the seedling clamping and fixing devices are provided on the scion true leaf end conveyor belt, the rootstock true leaf end conveyor belt, the scion root stem end conveyor belt, and the rootstock root stem end conveyor belt.

[0011] Beneficial effects: The seedling clamping device can fix the scion and rootstock in place, preventing them from shifting during pruning and affecting the connection between the true leaf tip of the scion and the rootstock stem tip.

[0012] Furthermore, it also includes a discarded seedling removal mechanism, which is equipped with a removal claw that is inserted into the gap of the seedling clamping device and removed as it is conveyed by the conveyor belt mechanism.

[0013] Beneficial effects: It can remove the rootstock ends of the cut scions and the true leaf ends of the rootstocks, making it convenient to replant vegetable seedlings. It is easy to use and highly efficient.

[0014] Furthermore, a collection port is provided below the removal claw.

[0015] Beneficial effect: The collection port can quickly remove the rootstock ends of the scions and the true leaf ends of the rootstocks, preventing them from falling onto other conveyor belts.

[0016] Furthermore, a gap is provided between the true leaf end conveyor belt and the root stem end conveyor belt of the scion tree for the grafting knife of the scion tree seedling to pass through and match its shape.

[0017] Beneficial effects: It facilitates the cutting of seedlings with grafting knives for both scion and rootstock seedlings, resulting in more thorough cutting.

[0018] Furthermore, the grafting mechanism includes a feeding box for placing grafting clips, a vibration component, a grafting clip guide tube, a limiting block, a grafting clip push rod, and a pushing component. The feeding box, which is equipped with the vibration component for feeding, has a discharge port that matches the shape of the grafting clip. The grafting clip guide tube is connected below the discharge port. A limiting block and an opening for the grafting clip push rod to extend into the outlet of the grafting clip guide tube are installed. The limiting block is arranged opposite to form a channel for the clamping part of the grafting clip to pass through and for limiting the head of the grafting clip. As the pushing component moves down, the grafting clip push rod extends into the head of the grafting clip and pushes the grafting clip across the channel. When the grafting clip crosses the channel, the clamping part opens and clamps the docking part. Then, the grafting clip push rod is moved up by the pushing component and retracts.

[0019] Beneficial effects: The entire grafting mechanism is less expensive than a robotic arm, and can complete the feeding, opening, and clamping of the grafting clamp. It has a simple structure and occupies a small area.

[0020] Furthermore, a flexible sealing layer is provided on the side of the grafting clip that clamps the docking part.

[0021] Beneficial effects: Using flexible materials to increase the sealing effect at the joint can prevent excessive clamping force from damaging the seedlings.

[0022] Furthermore, the grafting mechanism is also equipped with an infrared sensor and a buzzer for continuously detecting whether a grafting clip exists inside the grafting clip guide tube.

[0023] Beneficial effects: By setting up infrared sensors and buzzers to detect whether grafting clips are missing, grafting errors can be prevented and defects can be eliminated as soon as possible. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is an oblique side view of the interior of the vegetable seedling grafting device without a frame according to the present invention;

[0026] Figure 3 This is another side view of the overall structure of the present invention;

[0027] Figure 4 This is a diagram of the wood shearing device of the present invention;

[0028] Figure 5 This is a diagram of the grafting knife with a V-shaped outer bevel on the scion wood according to the present invention;

[0029] Figure 6 This is a diagram of the rootstock cutting device of the present invention;

[0030] Figure 7 This is a diagram of the grafting knife with the V-shaped inner bevel on the rootstock of the present invention;

[0031] Figure 8 This is a top view of the vegetable seedling true leaf end fixing device of the present invention;

[0032] Figure 9 This is a perspective view of the vegetable seedling true leaf end conveyor belt of the present invention;

[0033] Figure 10 This is a lower oblique view of the vegetable seedling true leaf end fixing device of the present invention;

[0034] Figure 11 This is a top view of the vegetable seedling rootstock fixing device of the present invention.

[0035] Figure 12 A perspective view of the vegetable seedling root and stem end conveyor belt of the present invention.

[0036] Figure 13 This is a lower oblique view of the vegetable seedling rootstock fixing device of the present invention;

[0037] Figure 14 This is a structural diagram of the waste seedling removal device of the present invention;

[0038] Figure 15 This is a partially enlarged view of the structure of the waste seedling removal device of the present invention and its cooperation with the vegetable seedling conveyor belt;

[0039] Figure 16 This is a structural diagram of the grafting seedling clamping device of the present invention;

[0040] Figure 17 This is a structural diagram of the grafting clip of the present invention;

[0041] Figure 18 This is a structural diagram of the grafting seedling clamping device of the present invention;

[0042] Figure 19 A structural diagram of the grafting clip device of the present invention is provided.

[0043] Figure 20 This is a structural diagram of the grafting seedling clamping device of the present invention;

[0044] Figure 21 A structural diagram of the grafting clip device of the present invention is provided.

[0045] Figure label:

[0046] 1. Frame; 1-1. Vegetable seedling cutting mechanism; 1-11. Grafting knife for scion seedlings; 1-12. Grafting knife for rootstock seedlings; 1-12-1. Blade; 1-2. Conveyor belt mechanism; 1-21. Scion conveyor belt; 1-22. Rootstock conveyor belt; 1-23. Gap opening; 1-3. Grafting mechanism; 1-4. Waste seedling removal mechanism; 1-5. Collection port; 2. Scion true leaf end conveyor belt; 3. Scion cutting device; 4. Scion rootstock end conveyor belt; 5. Feeding box; 501. Y-shaped opening of grafting clip feeding box; 6. Spring of grafting clip feeding box; 7. Fixed bracket of grafting clip feeding box; 8. Grafting clip guide tube; 801. Y-shaped guide groove of grafting clip guide tube; 802. Limiting block; 802-1. Channel; 9. Grafting clip guide tube bracket; 10. Infrared sensor; 1 1. Rootstock rootstock end conveyor belt; 12. Wheel; 13. Conveyor belt drive box; 14. Rootstock conveyor belt driven gear; 15. Conveyor belt drive motor; 16. Conveyor belt drive gear; 17. Spike conveyor belt driven gear; 18. Toothed roller rotating shaft; 19. Rootstock true leaf end conveyor belt; 20. Spike conveyor belt support wheel; 21. Rootstock true leaf end removal device; 211. Rootstock true leaf end removal claw; 22. Spike rootstock end removal device; 221. Rootstock end removal claw; 23. Toothed roller; 24. Rootstock shearing device; 2401. Rootstock shearing device support; 2402. Rootstock shearing device eccentric wheel; 2403. Rootstock grafting knife drive motor; 2404. Rootstock V-shaped inner bevel grafting knife; 2405. Rootstock V-shaped inner bevel grafting knife bevel; 25. Up-down vibrating electromagnetic vibrator; 26. Left-right vibrating electromagnetic vibrator; 27. Rootstock rootstock cleaning port; 28. Rootstock true leaf end cleaning port; 29. ​​True leaf end fixing plate; 30. True leaf end fixing plate support; 301. Rootstock shearing device support, 3 02. Grafting knife drive motor; 303. Grafting eccentric wheel; 304. Grafting knife with V-shaped outer bevel; 305. Grafting groove; 306. Limiting groove; 307. Protrusion; 308. Grafting knife with V-shaped outer bevel; 31. True leaf end clamping spring; 32. True leaf end clamping block; 33. Bolt; 34. Rootstock end fixing plate support; 35. Rootstock end fixing plate; 36. Rootstock end clamping spring; 37. Rootstock end clamping block; 38. Bolt; 39. Grafting clip; 39-1. Clamping part; 39-2. Head; 39-3. Flexible sealing layer; 391. Grafting clip side sealing ring; 392. Grafting clip bottom sealing ring; 40. Grafting clip power push rod; 41. Grafting clip drive motor; 42. Grafting clip eccentric wheel; 43. Buzzer; 44. Grafting clip spring; 45. Grafting clip push rod; 46. Grafting clip power push rod spring; 47. Grafting clip power push rod limiting slope. Detailed Implementation

[0047] The preferred embodiments of the invention are given below with reference to the accompanying drawings to illustrate the technical solution of the invention in detail. The corresponding drawings will be provided for detailed explanation of the invention. It should be particularly noted that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit or restrict the invention.

[0048] The following is in conjunction with the appendix Figures 1-21 The specific embodiments of the present invention are described in detail below. The present invention provides a vegetable seedling grafting device, including a vegetable seedling cutting mechanism 1-1, a conveyor belt mechanism 1-2, and a grafting mechanism 1-3. The vegetable seedling cutting mechanism 1-1 includes a scion seedling grafting knife 1-11 for cutting scion seedlings and a rootstock seedling grafting knife 1-12 for cutting rootstock seedlings. The scion seedling grafting knife 1-11 is located above the scion cutting station, and the rootstock seedling grafting knife 1-12 is located at the rootstock cutting station. The conveyor belt mechanism 1-2 includes a scion seedling conveyor belt 1-21 for transporting scion seedlings and a rootstock conveyor belt 1-22 for transporting rootstock seedlings. The scion seedling conveyor belt 1-21 is provided with a scion cutting station and a grafting station, and the rootstock conveyor belt 1-22 is provided with a rootstock cutting station and a grafting station. Above the grafting station is a grafting mechanism 1-3 for fixing the true leaf end of the scion seedling and the rootstock rootstock end of the grafted scion seedlings, which can realize semi-automatic grafting of vegetable seedlings. The vegetable seedling cutting mechanism 1-1, the conveyor belt mechanism 1-2, and the grafting mechanism 1-3 are installed on the frame 1.

[0049] like Figure 1 , Figure 2 As shown, the scion conveyor belt 1-21 and the rootstock conveyor belt 1-22 are arranged vertically and operate synchronously. The scion conveyor belt 1-21 consists of the scion true leaf end conveyor belt 2 and the scion root stem end conveyor belt 4, which are driven at the same level. The rootstock conveyor belt 1-22 consists of the rootstock true leaf end conveyor belt 19 and the rootstock root stem end conveyor belt 11, which are driven at the same level. The front ends of the rootstock true leaf end conveyor belt 19 and the rootstock root stem end conveyor belt 11 are coplanar and their rear ends are separated. The scion true leaf end conveyor belt 2 and the scion root stem end conveyor belt 4 are coplanar and arranged side by side. After passing through the scion shearing station, the scion true leaf end conveyor belt 2 is inclined downward and coplanar with the rootstock root stem end conveyor belt 11, so that the scion true leaf end and the rootstock root stem end are connected. After passing through the grafting station, the grafting is performed by the grafting mechanism 1-3. The grafted seedling is manually retrieved at the end of the scion true leaf end conveyor belt 2 and the rootstock root stem end conveyor belt 11.

[0050] The conveyor belt mechanism 1-2 is divided into two stages, transporting scions and rootstocks respectively. Each stage of the conveyor belt consists of two parts, left and right, used to fix the true leaf end and hypocotyl end (rootstock end) of the same vegetable seedling respectively. Before cutting, the conveyor belts of the same stage move in tandem. After cutting, the longer part of the conveyor belt transports the scion or rootstock to be grafted to the bonding position. The discarded parts of the scion or rootstock are transported to the lower end by the shorter part of the conveyor belt for removal.

[0051] The conveyor belt mechanism 1-2 is driven by a conveyor belt drive device located on one side of the frame. Powered by a motor, the drive motor drives two identical driven gears via a drive gear, maintaining the two-stage conveyor belts moving at the same speed. The two drive and support wheels at the same position in the conveyor belt mechanism 1-2 share the same rotating shaft and rotate synchronously with the drive and support wheels, improving the conveying stability of the device.

[0052] The grafting knife 1-11 for scion seedlings and / or the grafting knife 1-12 for rootstock seedlings are driven by a vertical drive mechanism to move up and down reciprocally. The blade head is V-shaped. There is an angle between the plane containing the cutting edge 1-12-1 of the blade head and the transmission plane. The larger end of the cutting edge 1-12-1 is closer to the transmission plane than the smaller end. The outer or inner surface of the blade head has a bevel extending to the cutting edge 1-12-1. For scion seedling grafting knife 1-11, the bevel is on the outer surface of the blade head, forming a V-shaped outer bevel grafting knife bevel 308. For rootstock seedling grafting knife 1-12, the bevel is on the inner surface of the blade head, forming a V-shaped inner bevel grafting knife bevel 2405.

[0053] like Figures 4-13 As shown, the grafting knife 1-11 for the scion seedlings is specifically a scion cutting device 3, and the grafting knife 1-12 for the rootstock seedlings is specifically a rootstock cutting device 24. In the specific implementation process, the scion is placed on the true leaf end fixing plate 29 and the rootstock end fixing plate 35 on the scion conveyor belt near the end of the scion cutting device 3. The true leaf end of the scion is placed on the true leaf end conveyor belt 2, and the rootstock end is placed on the rootstock end conveyor belt 4. The rootstock is placed on the true leaf end fixing plate 29 and the rootstock end fixing plate 35 on the scion conveyor belt near the end of the rootstock cutting device 24. The true leaf end of the rootstock is placed on the true leaf end conveyor belt 19, and the rootstock end is placed on the rootstock end conveyor belt 11.

[0054] Vegetable seedling conveyor belts are respectively composed of Figures 8-11 Composition, in which Figure 8 , Figure 9The conveyor belts are designed to fix the true leaf ends of vegetable seedlings. Specifically, the true leaf end fixing plate 29 is fixed to the true leaf end fixing plate support 30 by bolts 33. The circular hinges on the left and right sides of multiple true leaf end fixing plate support 30s are connected to each other to form the true leaf end conveyor belt 2 of the scion and the true leaf end conveyor belt 19 of the rootstock. The scion conveyor belt support wheel 20 provides support for the true leaf end conveyor belt 2 of the scion at the toothed roller where the scion true leaf end conveyor belt 2 and the scion rootstock end conveyor belt 4 are separated. The true leaf end fixing plate 29 has a seedling clamping device consisting of a true leaf end clamping spring 31 and a true leaf end clamping block 32. The seedling clamping device is used to quickly fix the scion seedling and the rootstock seedling and can quickly remove the grafted seedling without damaging it. The true leaf end clamping spring 31 and the true leaf end clamping block 32 are rigidly connected. As explained in the positional relationship in the figure, there are true leaf end clamping springs 31 and true leaf end clamping blocks 32 at both the top and bottom. The seedling is placed between the two true leaf end clamping blocks 32. When the true leaf end clamping spring 31 is compressed, the spring reacts to achieve clamping and fixation. It is used to clamp the true leaf end of the vegetable seedling and fix the true leaf end. The triangular protrusion at one end of the true leaf end fixing plate 29 matches the angle of the grafting knife 304 on the V-shaped outer bevel of the scion wood, and also matches the angle of the triangular notch at one end of the rootstock end fixing plate 35. There are gaps 1-23 between the two. Figure 11 , Figure 12 The conveyor belts are designed to fix the root ends of vegetable seedlings. Specifically, the root end fixing plate 35 is fixed to the root end fixing plate support 34 by bolts 38. The circular hinges on the left and right sides of multiple root end fixing plate support 34s are connected to each other to form the root end conveyor belt 4 of the scion and the root end conveyor belt 11 of the root. The root end fixing plate 35 has a root end clamping spring 36 and a root end clamping block 37, which are used to clamp the root end of the vegetable seedling and fix the root end. The triangular notch at one end of the root end fixing plate 35 matches the angle of the grafting knife 2404 on the V-shaped inner bevel of the rootstock, and there is a gap 1-23 between the two.

[0055] When vegetable scions and rootstock seedlings are simultaneously transported to the scion cutting device 3 and rootstock cutting device 24, they are cut synchronously. The scion grafting knife drive motor 302 drives the scion cutting eccentric wheel 303 to rotate. The scion cutting eccentric wheel 303 is provided with a scion cutting groove 305 on its side. The scion cutting groove 305 cooperates with the limiting groove 306 and protrusion 307 at the upper end of the scion V-shaped outer bevel grafting knife 304. The protrusion at the upper end of the scion V-shaped outer bevel grafting knife 304 matches the scion cutting groove 305 provided on the side of the scion cutting eccentric wheel 303. When the scion cutting eccentric wheel 303 rotates, the scion V-shaped outer bevel grafting knife 304 moves up and down reciprocatingly, which plays the role of cutting the scion. The bevel 308 of the scion V-shaped outer bevel grafting knife can ensure that the squeezing damage to the true leaf end is reduced when cutting the scion. The rootstock grafting knife drive motor 2403 drives the eccentric wheel 2402 of the rootstock cutting device to rotate. The eccentric wheel 2402 of the rootstock cutting device has a groove on its side. The groove cooperates with the limiting groove and protrusion at the upper end of the rootstock V-shaped inner bevel grafting knife 2404. The protrusion at the upper end of the rootstock V-shaped inner bevel grafting knife 2404 matches the groove on the side of the rootstock cutting device eccentric wheel 2402. When the rootstock cutting device eccentric wheel 2402 rotates, the rootstock V-shaped inner bevel grafting knife 2404 moves up and down reciprocatingly, which plays the role of cutting the rootstock. The bevel 2405 of the rootstock V-shaped inner bevel grafting knife can ensure that the compression damage to the rootstock root end is reduced when cutting the rootstock.

[0056] After being cut, the true leaf tips of the scion and the rootstock tips of the rootstock are transported separately on the scion true leaf tip conveyor belt 2 and the rootstock rootstock tip conveyor belt 11, respectively. The rootstock tips of the scion and the true leaf tips of the rootstock are transported separately on the scion rootstock tip conveyor belt 4 and the rootstock true leaf tip conveyor belt 19, respectively. The rootstock tips of the scion are removed by the scion rootstock tip removal device 22 at the lower end of the scion rootstock tip conveyor belt 4 and discharged from the scion rootstock tip impurity removal port 27. The four protruding scion rootstock tip removal claws 221 of the scion rootstock tip removal device 22 are located between three pairs of gaps formed by the rootstock tip clamping springs 36 and the rootstock tip clamping blocks 37 on the rootstock tip fixing plate 35, ensuring that the removal claws and the scion rootstock tip conveyor belt 4 do not interfere with each other. After the true leaf tip of the rootstock is removed by the true leaf tip removal device 21 via the true leaf tip conveyor belt 19, it is discharged from the true leaf tip impurity outlet 28. The four protruding true leaf tip removal claws 211 of the true leaf tip removal device 21 are respectively located between the gaps formed by the true leaf tip clamping springs 31 and the true leaf tip clamping blocks 32 on the true leaf tip fixing plate 29, ensuring that the removal claws and the true leaf tip conveyor belt 19 do not interfere with each other during rotation.

[0057] After being cut, the true leaf ends of the scion and the rootstock ends are joined together at the junction of the rootstock rootstock end conveyor belt 11 and the scion true leaf end conveyor belt 2. After joining, they are conveyed to the grafting mechanism 1-3 to complete the joining and fixing.

[0058] The grafting clip 39 is used to fix the true leaf tip of the scion and the rootstock tip after grafting. A flexible sealing layer 39-3 is provided on the side of the grafting clip 39 that clamps the joint. Figure 17 As shown, the grafting clip is equipped with a side sealing ring 391 and a bottom sealing ring 392, both made of flexible material. The inclined support layers on both sides slope outwards from the middle of their respective sides, leaving a cavity in the middle. When clamping the seedling, the cavity is in contact with the seedling stem. While ensuring the sealing ring has a certain degree of elasticity, it also reduces pressure on the seedling stem, providing a sealed environment for the grafting interface with minimal damage. This allows the grafting clip 39 to provide a relatively sealed environment at the wound site when fixing the vegetable seedling, and the flexible material prevents excessive clamping force from damaging the seedling. Compared to ordinary deformable flexible sealing layers, the advantages of this sealing ring are: reduced pressure on the seedling stem, and a more stable sealed environment (because this structure can deform, the seedling stem fits more tightly).

[0059] The grafting clip 39 is first placed in the feeding box 5. The feeding box 5 is flexibly fixed to the grafting clip feeding box fixing bracket 7 by the grafting clip feeding box spring 6. The vibration component consists of an up-and-down vibrating electromagnetic vibrator 25 and a left-and-right vibrating electromagnetic vibrator 26. The grafting clip 39 moves in the feeding box 5 through the coordinated vibration of the up-and-down vibrating electromagnetic vibrator 25 and the left-and-right vibrating electromagnetic vibrator 26 to the Y-shaped opening 501 of the grafting clip feeding box and falls out to the Y-shaped guide groove 801 of the grafting clip guide tube. It is then transported through the Y-shaped guide groove 801 of the grafting clip guide tube and stored in the grafting clip guide tube 8. When the infrared sensor 10 continuously detects that the grafting clip 39 is missing at the infrared sensor 10 in the grafting clip guide tube 8, it is determined that the grafting clip 39 is missing, and the buzzer 43 starts to alarm. The cause of the missing grafting clip 39 is checked and repaired manually. When the grafting clip 39 moves to the outlet of the lower end of the grafting clip guide tube 8, the head 39-2 of the grafting clip 39 is temporarily stopped at the outlet of the lower end of the grafting clip guide tube 8 because the energy channel 802-1 of the limiting block 802 at the outlet of the grafting clip guide tube 802 is stuck. The push component, in conjunction with the grafting clip push rod 45, opens the push-out channel 802-1. The push component includes a horizontal power component that can push the grafting clip push rod 45 to extend and retract horizontally, and a vertical power component that can push the horizontal power component to move up and down. For example, the specific structure and usage of the push component are as follows: the grafting clip drive motor 41 drives the grafting clip eccentric wheel 42 to rotate. The grafting clip eccentric wheel 42 has a groove on its side, which cooperates with the limiting groove and protrusion at the upper end of the grafting clip power push rod 40. When the grafting clip eccentric wheel 42 rotates, the grafting clip power push rod 40 reciprocates up and down. The grafting clip power push rod 40 reciprocates up and down, driving the grafting clip push rod 45 downward. Due to the limiting effect of the grafting clip push rod limiting inclined surface 47, the grafting clip push rod 45 compresses the grafting clip push rod spring 46 and moves laterally as it moves downward. During the lateral movement of the grafting clip push rod 45, the extended grafting clip push rod 45 extends into the head 39-2 of the grafting clip guide tube 8. Combined with the downward movement of the grafting clip push rod 45, this pushes the grafting clip 39 out of the grafting clip guide tube 8 in an open manner, thus securing the grafted vegetable seedling. When the grafting clip push rod 45 moves upward, due to the elastic potential energy of the grafting clip push rod spring 46, the spring 46 undergoes a lateral movement in the opposite direction to the downward movement, returning to its initial position, ready to push the next grafting clip 39. Under the action of the grafting clip spring 44, the grafting clip 39 remains closed during the transport process.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit or restrict the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection declared by the present invention.

Claims

1. A vegetable seedling grafting device, comprising a vegetable seedling cutting mechanism (1-1), a conveyor belt mechanism (1-2), and a grafting mechanism (1-3), wherein the vegetable seedling cutting mechanism (1-1) includes a scion seedling grafting knife (1-11) for cutting scions and a rootstock seedling grafting knife (1-12) for cutting rootstocks, the scion seedling grafting knife (1-11) being located above the scion cutting station, and the rootstock seedling grafting knife (1-12) being located at the rootstock cutting station; The conveyor belt mechanism (1-2) includes a scion conveyor belt (1-21) for transporting scion seedlings and a rootstock conveyor belt (1-22) for transporting rootstock seedlings. The scion conveyor belt (1-21) has a scion cutting station and a grafting station, and the rootstock conveyor belt (1-22) has a rootstock cutting station and a grafting station. Above the grafting station is a grafting mechanism (1-3) for fixing the true leaf end of the joined scion and the rootstock rootstock end. Its characteristic is that: The scion conveyor belt (1-21) and the rootstock conveyor belt (1-22) are arranged vertically and operate synchronously. The scion conveyor belt (1-21) consists of the scion true leaf end conveyor belt (2) and the scion root stem end conveyor belt (4) with the same level of transmission. The rootstock conveyor belt (1-22) consists of the rootstock true leaf end conveyor belt (19) and the root stem end conveyor belt (11) with the same level of transmission. The front ends of the rootstock true leaf end conveyor belt (19) and the root stem end conveyor belt (11) are coplanar and the rear ends are separated. The scion true leaf end conveyor belt (2) and the scion root stem end conveyor belt (4) are coplanar and arranged side by side. After passing through the scion shearing station, the scion true leaf end conveyor belt (2) tilts downward and is coplanar with the root stem end conveyor belt (11), so that the scion true leaf end and the root stem end are connected and then pass through the grafting station.

2. The vegetable seedling grafting device as described in claim 1, characterized in that: The grafting knife (1-11) for scion seedlings and / or the grafting knife (1-12) for rootstock seedlings are driven by a vertical drive mechanism to move up and down reciprocally, and their blades are V-shaped.

3. The vegetable seedling grafting device as described in claim 2, characterized in that: There is an angle between the plane containing the cutting edge (1-12-1) of the cutter head and the transmission plane. The larger end of the cutting edge (1-12-1) is closer to the transmission plane than the smaller end. The outer or inner surface of the cutter head has a bevel extending to the cutting edge (1-12-1).

4. The vegetable seedling grafting device as described in claim 1, characterized in that: The seedling clamping and fixing devices are provided on the true leaf end conveyor belt (2), the true leaf end conveyor belt (19), the rootstock end conveyor belt (4), and the rootstock end conveyor belt (11).

5. The vegetable seedling grafting device as described in claim 4, characterized in that: It also includes a discarded seedling removal mechanism (1-4), which is equipped with a removal claw (1-41) that is inserted into the gap of the seedling clamping device and removed by conveyor belt mechanism (1-2).

6. The vegetable seedling grafting device as described in claim 5, characterized in that: The removal claw (1-41) is provided with a collection port (1-5) below it.

7. The vegetable seedling grafting device as described in claim 1, characterized in that: The true leaf end conveyor belt (2) and the root stem end conveyor belt (4) of the scion tree are provided with a gap (1-23) for the scion tree seedling grafting knife (1-11) to pass through and match the shape.

8. The vegetable seedling grafting device as described in claim 1, characterized in that: The grafting mechanism (1-3) includes a feeding box (5) for placing the grafting clip (39), a vibration component, a grafting clip guide tube (8), a limiting block (802), a grafting clip push rod (45), and a pushing component. The feeding box (5), which is equipped with the vibration component for feeding, has a discharge port that matches the shape of the grafting clip (39). The grafting clip guide tube (8) is connected below the discharge port. A limiting block (802) and an opening for the grafting clip push rod (45) to extend into the grafting clip guide tube (8) are installed at the outlet of the grafting clip guide tube (8). 02) A channel (802-1) is formed by the relative arrangement of the clamping part (39-1) for the grafting clip (39) to pass through and limit the head (39-2) of the grafting clip (39). The grafting clip push rod (45) extends into the head (39-2) of the grafting clip (39) as the pushing component moves down, pushing the grafting clip (39) across the channel (802-1). When the grafting clip (39) crosses the channel (802-1), the clamping part (39-1) opens and clamps the docking part. Then, the grafting clip push rod (45) is driven to retract by the upward movement of the pushing component.

9. A vegetable seedling grafting device as described in claim 8, characterized in that: The grafting clip (39) has a flexible sealing layer (39-3) on the side that clamps the docking part.

10. A vegetable seedling grafting device as described in claim 8, characterized in that: The grafting mechanism (1-3) is also equipped with an infrared sensor (10) and a buzzer (43) for continuously detecting whether there is a grafting clip (39) inside the grafting clip guide tube (8).

Images