Vegetable seedling grafting device

Abstract

The invention provides a vegetable seedling grafting device, and relates to the technical field of agricultural machinery, the vegetable seedling grafting device comprises a vegetable seedling shearing mechanism, a conveying belt mechanism and a grafting mechanism, the vegetable seedling shearing mechanism comprises a scion seedling grafting knife and a stock seedling grafting knife, and a scion conveying belt and a stock conveying belt are arranged up and down and synchronously operate; the scion conveying belt is composed of a scion true leaf end conveying belt and a scion rootstock end conveying belt which are in same-stage transmission, the rootstock conveying belt is composed of a rootstock true leaf end conveying belt and a rootstock rootstock end conveying belt which are in same-stage transmission, and the scion true leaf end conveying belt and the scion rootstock end conveying belt are arranged side by side in a coplanar mode and pass through a scion shearing station. The scion true leaf end conveying belt inclines downwards and is coplanar with the rootstock rhizome end conveying belt, so that the scion true leaf end and the rootstock rhizome end pass through a grafting station after being in butt joint. The device is small in occupied area, small in error and convenient to use, and shearing, attaching and grafting work can be completed through one set of transportation equipment.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a vegetable seedling grafting device. Background Art

[0002] Vegetable seedling grafting involves connecting the true leaf end or bud end of a vegetable seedling to the hypocotyl of another seedling, combining them into a single seedling. In the field of vegetable seedling grafting technology, the grafted part of the plant is called the scion, and the part that supports the scion is called the rootstock. The rootstock forms the lower root portion, and the scion forms the upper portion. Grafting seedlings is an important technical means of overcoming soil obstacles such as continuous cropping and high temperature and humidity diseases during vegetable production. Currently, the production of grafted vegetable seedlings relies primarily on manual labor, resulting in low efficiency and high labor costs, which significantly hinders the development of large-scale production of grafted seedlings. Vegetable seedling grafting machines can effectively reduce the labor intensity of manual grafting and improve grafting efficiency. Assembly-line vegetable seedling grafting machines have the characteristics of fast operation speed, simple structure, and easy operation. For example, the current assembly-line vegetable seedling grafting machine disclosed in the "Automatic Grafting Method for Multiple Synchronous Cleft Grafting of Plug Seedlings" disclosed in Application No. 2019103115312.4 often uses rootstocks and scion wood to be sheared separately and transported to the joint independently. However, during the seedling transportation process, due to transportation and displacement in different directions, the transportation speed of the rootstock and scion wood is prone to errors, resulting in alignment errors in the joint interface, affecting the grafting success rate and the survival rate of the grafted seedlings. In addition, each area requires an independent space, which occupies a large area. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a vegetable seedling grafting device, which occupies a small area and can complete the cutting, pasting and grafting work using a set of transportation equipment, has small errors and is easy to use.

[0004] In order to achieve the above technical purpose, the technical scheme adopted is: a vegetable seedling grafting device, including a vegetable seedling shearing mechanism, a conveyor belt mechanism and a grafting mechanism, the vegetable seedling shearing mechanism includes a scion seedling grafting knife for shearing scion and a rootstock seedling grafting knife for shearing rootstock, the scion seedling grafting knife is located above the scion shearing station, and the rootstock seedling grafting knife is located at the rootstock shearing station; the conveyor belt mechanism includes a scion conveyor belt for transmitting scion seedlings and a rootstock conveyor belt for transmitting rootstock seedlings, the scion conveyor belt is provided with a scion shearing station and a grafting station, the rootstock conveyor belt is provided with a rootstock shearing station and a grafting station, and above the grafting station is provided a The scion wood true leaf end and the rootstock root stem end are fixed by the grafting mechanism, the scion wood conveyor belt and the rootstock conveyor belt are arranged up and down and operate synchronously, the scion wood conveyor belt is composed of the scion wood true leaf end conveyor belt and the rootstock root stem end conveyor belt with the same level transmission, the rootstock conveyor belt is composed of the rootstock true leaf end conveyor belt and the rootstock root stem end conveyor belt with the same level transmission, the rootstock true leaf end conveyor belt and the rootstock root stem end conveyor belt are coplanar at the front and separated at the rear end, the scion wood true leaf end conveyor belt and the scion wood root stem end conveyor belt are coplanar and arranged side by side after passing the scion wood shearing station, the scion wood true leaf end conveyor belt tilts downward and is coplanar with the rootstock root stem end conveyor belt, so that the scion wood true leaf end and the rootstock root stem end are butt-jointed and then pass through the grafting station.

[0005] Beneficial Effects: The scion and rootstock conveyor belts are arranged one above the other, eliminating the need for a large, flat, assembly-line conveyor system and saving space. The four conveyor belts share a common power source and drive, ensuring consistent seedling conveying speeds and preventing belt slippage, which improves seedling grafting and shearing accuracy. The ingeniously designed, downward-angled scion leaf end conveyor belt automatically aligns the scion leaf end with the rootstock stem end, preventing damage from repeated movement.

[0006] Furthermore, the scion seedling grafting knife and / or the rootstock seedling grafting knife are driven by a vertical drive mechanism to reciprocate up and down, and the knife head thereof is V-shaped.

[0007] Beneficial effects: By coordinating the up and down moving V-shaped grafting cutter speed with the transmission effect of the conveyor belt, transmission and shearing are achieved in parallel, with high grafting efficiency. In addition, the V-shaped section wound makes the true leaf end of the scion wood and the rootstock rootstock end more consistent when docking, without alignment error, and with a high grafting success rate.

[0008] Furthermore, there is an angle between the plane where the blade of the cutter head is located and the transmission plane, the large end of the blade is closer to the transmission plane than the small end, and the outer surface or inner surface of the cutter head has a slope extending to the blade.

[0009] Beneficial Effects: The grafting knife gradually cuts into the stem with the tip of the knife, which reduces the instantaneous shear stress on the stem and reduces damage to the stem. The grafting knife is equipped with outer and inner bevels to reduce the pressure on the rootstock and the true leaf end of the stem during cutting.

[0010] Furthermore, the scion wood true leaf end conveyor belt, the stock true leaf end conveyor belt, the scion wood root stem end conveyor belt and the stock root stem end conveyor belt are provided with a seedling clamping and fixing device.

[0011] Beneficial effect: The scion and the rootstock are fixed by using the seedling clamping device to prevent the scion and the rootstock from shifting during shearing, thereby affecting the connection between the true leaf end of the scion and the rootstock root end.

[0012] Furthermore, it also includes a discarded seedling rejection mechanism, which is provided with a rejection claw inserted into the gap of the seedling clamping fixing device and transported along the conveyor belt mechanism for rejection.

[0013] Beneficial effects: The rootstock end of the cut scion and the true leaf end of the rootstock can be removed, making it convenient to install vegetable seedlings again. It is easy to use and highly efficient.

[0014] Furthermore, a collecting port is provided below the removing claw.

[0015] Beneficial effect: The collection port can quickly remove the root end of the scion wood and the true leaf end of the rootstock to be removed, and they will not fall on other conveyor belts.

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

[0017] Beneficial effect: It is convenient for grafting knives of scion seedlings and rootstock seedlings to cut seedlings, and the cutting is more thorough.

[0018] Furthermore, the grafting mechanism includes a loading box for placing the grafting clamp, a vibration component, a grafting clamp guide tube, a limit block, a grafting clamp push rod and a pushing component. The loading box equipped with the vibration component for loading is provided with a discharge port that matches the shape of the grafting clamp, and the grafting clamp guide tube is docked below the discharge port. A limit block is installed at the outlet of the grafting clamp guide tube and an opening for the grafting clamp push rod to extend into. The limit blocks are relatively arranged to form a channel for the clamping part of the grafting clamp to pass through and limit the head of the grafting clamp. The grafting clamp push rod extends into the head of the grafting clamp as the pushing component moves downward to push the grafting clamp across the channel. When the grafting clamp crosses the channel, the clamping part opens to clamp the docking part, and the grafting clamp push rod is driven to retract by the upward movement of the pushing component.

[0019] Beneficial effects: The whole grafting mechanism has a low cost compared to the robot arm, can complete the discharging, loading, opening and clamping of the grafting clamp, has a simple structure and occupies a small area.

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

[0021] Beneficial effect: The flexible material is used to increase the sealing effect of the docking part, which can prevent the grafting clamp from clamping too much and damaging the seedlings.

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

[0023] Beneficial effect: By setting up an infrared sensor and a buzzer to detect whether the grafting clip is missing, grafting errors can be prevented and defects can be eliminated as soon as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is an oblique side view of the interior of the vegetable seedling grafting device without the frame of the present invention; Figure 3 It is another side view of the overall structure of the present invention; Figure 4 A diagram of a spikewood shearing device according to the present invention; Figure 5 This is a diagram of the V-shaped outer bevel grafting knife of the present invention; Figure 6 This is a diagram of the rootstock shearing device of the present invention; Figure 7 This is a diagram of a V-shaped inner bevel grafting knife for a rootstock of the present invention; Figure 8 This is a top view of the device for fixing the true leaf ends of vegetable seedlings of the present invention; Figure 9 This is an oblique view of the true leaf end conveyor belt of the vegetable seedlings of the present invention; Figure 10 This is an oblique bottom view of the device for fixing the true leaf ends of vegetable seedlings of the present invention; Figure 11 This is a top view of the vegetable seedling root end fixing device of the present invention.

[0025] Figure 12 This is an oblique view of the vegetable seedling root end conveyor belt of the present invention Figure 13 This is an oblique bottom view of the vegetable seedling root end fixing device of the present invention; Figure 14 This is a structural diagram of the discarded seedling removal device of the present invention; Figure 15 This is a partial enlarged view of the coordination between the structure of the discarded seedling rejecting device of the present invention and the vegetable seedling conveyor belt; Figure 16 This is a structural diagram of the grafting seedling clamping device of the present invention; Figure 17 This is a structural diagram of the grafting clip of the present invention; Figure 18This is a structural diagram of the grafting seedling clamping device of the present invention; Figure 19 The present invention provides a structural diagram of a grafting clamp for a grafting seedling clamp device; Figure 20 This is a structural diagram of the grafting seedling clamping device of the present invention; Figure 21 The grafting clamp structure diagram of the grafting seedling clamp device of the present invention is introduced; Reference numerals: 1. Frame; 1-1. Vegetable seedling shearing 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 rejection mechanism; 1-5. Collection port; 2. Conveyor belt for the true leaf end of scion; 3. Scion shearing device; 4. Conveyor belt for the rootstock end of scion; 5. Feeding box; 501. Y-shaped opening of the grafting clamp feeding box; 6. Spring for the grafting clamp feeding box; 7. Fixed bracket for the grafting clamp feeding box; 8. Guide tube for grafting clamp; 801. Y-shaped guide groove for the guide tube for grafting clamp; 802. Limit block; 802-1. Channel; 9. Bracket for the grafting clamp guide tube; 10. Infrared sensor; 1 1. Rootstock root 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. Scion conveyor belt driven gear; 18. Toothed roller rotating shaft; 19. Rootstock true leaf end conveyor belt; 20. Scion conveyor belt support wheel; 21. Rootstock true leaf end rejection device; 22. Scion root end rejection device; 221. Claw for removing the root end of scion wood; 23. Tooth roller; 24. Stock shearing device; 2401. Stock shearing device bracket; 2402. Eccentric wheel of stock shearing device; 2403. Drive motor for stock grafting knife; 2404. V-shaped inner bevel grafting knife for stock; 2405. Bevel of V-shaped inner bevel grafting knife for stock; 25. Electromagnetic vibrator for vertical vibration; 26. Electromagnetic vibrator for horizontal vibration; 27. Root end of scion wood weed removal port; 28. True leaf end of stock weed removal port; 29. ​​True leaf end fixing plate; 30. True leaf end fixing plate support; 301. Scion wood shearing device bracket, 3 02. Drive motor for the scion grafting knife; 303. Eccentric wheel for scion shearing; 304. V-shaped external bevel grafting knife for scion; 305. Groove for scion shearing; 306. Limiting groove; 307. Protrusion; 308. Bevel of the V-shaped external bevel grafting knife for scion; 31. Spring for clamping seedlings at the true leaf end; 32. Clamping block for the true leaf end; 33. Bolt; 34. Support seat for the fixing plate at the root end; 35. Fixing plate at the root end; 36. Spring for clamping seedlings at the root end; 37. Clamping block for the root end; 38. Bolt; 39. Grafting clamp; 39-1. Clamping portion; 39-2. Head; 39-3. Flexible sealing layer; 391. Grafting clamp side sealing ring; 392. Grafting clamp bottom sealing ring; 40. Grafting clamp power push rod; 41. Grafting clamp drive motor; 42. Grafting clamp eccentric wheel; 43. Buzzer; 44. Grafting clamp spring; 45. Grafting clamp push rod; 46. Grafting clamp power push rod spring; 47. Grafting clamp power push rod limit ramp. DETAILED DESCRIPTION

[0026] The preferred embodiments of the invention are given below in conjunction with the accompanying drawings to explain the technical solutions of the present invention in detail. Here, the corresponding drawings will be given to explain the present invention in detail. It should be noted that the preferred embodiments described herein are only for illustrating and explaining the present invention and are not intended to limit or restrict the present invention.

[0027] The following is combined with Figures 1-21 The specific embodiments of the present invention are described in detail. The present invention provides a vegetable seedling grafting device, comprising a vegetable seedling shearing mechanism 1-1, a conveyor belt mechanism 1-2, and a grafting mechanism 1-3. The vegetable seedling shearing mechanism 1-1 comprises a scion seedling grafting knife 1-11 for shearing scion and a rootstock seedling grafting knife 1-12 for shearing rootstock. The scion seedling grafting knife 1-11 is located above the scion shearing station, and the rootstock seedling grafting knife 1-12 is located at the rootstock shearing station. The conveyor belt mechanism 1-2 comprises 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 is provided with a scion shearing station and a grafting station. The rootstock conveyor belt 1-22 is provided with a rootstock shearing station and a grafting station. A grafting mechanism 1-3 is provided above the grafting station for fixing the docked scion true leaf end and the rootstock root stem end, thereby realizing semi-automatic grafting of vegetable seedlings. The vegetable seedling shearing mechanism 1 - 1 , the conveyor belt mechanism 1 - 2 and the grafting mechanism 1 - 3 are installed on the frame 1 .

[0028] like Figure 1 、 Figure 2 As shown, the scion conveyor belt 1-21 and the rootstock conveyor belt 1-22 are arranged up and down and operate synchronously, the scion conveyor belt 1-21 is composed of the scion true leaf end conveyor belt 2 and the scion root stem end conveyor belt 4 with the same level transmission, and the rootstock conveyor belt 1-22 is composed of the rootstock true leaf end conveyor belt 19 and the rootstock root stem end conveyor belt 11 with the same level transmission, the rootstock true leaf end conveyor belt 19 and the rootstock root stem end conveyor belt 11 are coplanar at the front end and separated at the rear end, 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 the scion shearing station, the scion true leaf end conveyor belt 2 is tilted 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 and then pass through the grafting station, and after grafting by the grafting mechanism 1-3, the grafted seedlings are manually recovered at the ends of the scion true leaf end conveyor belt 2 and the rootstock root stem end conveyor belt 11.

[0029] Conveyor belt mechanism 1-2 is divided into two stages, transporting scions and rootstocks respectively. Each stage consists of two sections, one for securing the true leaf end and the other for securing the hypocotyl (rootstock) end of the same vegetable seedling. The conveyor belts on the same stage move in tandem before shearing. After shearing, the longer section of the conveyor belt transports the grafted scion or rootstock to the appropriate position. The discarded scion or rootstock is transported to the lower end by the shorter section of the conveyor belt for removal.

[0030] Conveyor mechanism 1-2 is driven by a conveyor belt drive unit located on one side of the frame. Powered by a motor, the drive motor drives two identical driven gears via a single drive gear, maintaining the same speed for the two conveyor belt stages. The two drive and support wheels at the same location in conveyor mechanism 1-2 share the same rotation axis and rotate synchronously with them, enhancing conveying stability.

[0031] The scion seedling grafting knife 1-11 and / or the rootstock seedling grafting knife 1-12 are driven by the scion seedling grafting knife 1-11 and / or the rootstock seedling grafting knife 1-12 to reciprocate up and down by a vertical drive mechanism, and the blade 1-12 is V-shaped. There is an angle between the plane where the blade 1-12-1 of the blade is located and the transmission plane, and the large end of the blade 1-12-1 is closer to the transmission plane than the small end. The outer surface or inner surface of the blade head has an inclined surface extending to the blade 1-12-1. If it is the scion seedling grafting knife 1-11, the inclined surface is on the outer surface of the blade head, which is the scion V-shaped outer inclined surface grafting knife inclined surface 308. If it is the rootstock seedling grafting knife 1-12, the inclined surface is on the inner surface of the blade head, which is the rootstock V-shaped inner inclined surface grafting knife inclined surface 2405.

[0032] like Figure 4-13 As shown, the specific structure of the scion seedling grafting knife 1-11 is the scion shearing device 3, and the specific structure of the rootstock seedling grafting knife 1-12 is the rootstock shearing device 24. In the specific implementation process, the scion is placed on the true leaf end fixing plate 29 and the root stem end fixing plate 35 on the scion conveyor belt near the scion shearing device 3, wherein the true leaf end of the scion is placed on the scion true leaf end conveyor belt 2, and the root stem end of the scion is placed on the scion root stem end conveyor belt 4. The rootstock is placed on the true leaf end fixing plate 29 and the root stem end fixing plate 35 on the scion conveyor belt near the rootstock shearing device 24, wherein the true leaf end of the rootstock is placed on the rootstock true leaf end conveyor belt 19, and the root stem end of the rootstock is placed on the rootstock root stem end conveyor belt 11.

[0033] Vegetable seedling conveyor belts are composed of Figures 8-11 Composition, of which Figure 8 、 Figure 9The conveyor belt is composed of a fixed true leaf end of vegetable seedlings. The specific combination method is that the true leaf end fixing plate 29 is fixed to the true leaf end fixing plate support seat 30 by a bolt 33, and the circular hinges on the left and right sides of multiple true leaf end fixing plate support seats 30 are connected to each other to form the scion true leaf end conveyor belt 2 and the rootstock true leaf end conveyor belt 19, wherein the scion conveyor belt support wheel 20 supports the scion true leaf end conveyor belt 2 at the tooth roller separating the scion true leaf end conveyor belt 2 and the scion root end conveyor belt 4, and the true leaf end fixing plate 29 is provided with a true leaf end seedling clamping spring 31 and a true leaf end seedling clamping block 32. The seedling clamping fixing device is used to quickly fix the scion seedlings and the rootstock seedlings, and can quickly remove the grafted seedlings without damaging the seedlings. The true leaf end seedling clamping spring 31 and the true leaf end seedling clamping block 32 are rigidly connected. According to the positional relationship in the figure of this article, there are true leaf end seedling clamping spring 31 and true leaf end seedling clamping block 32 on the upper and lower sides. The seedlings are placed between the upper and lower true leaf end seedling clamping blocks 32, and the true leaf end seedling clamping spring 31 is compressed. The spring reacts to achieve clamping and fixing, which is used to clamp the true leaf end seedling stem of the vegetable seedling and play a role in fixing the true leaf end. The triangular protrusion at one end of the true leaf end fixing plate 29 matches the angle of the V-shaped outer bevel grafting knife 304 of the tassel wood, and also matches the angle of the triangular notch at one end of the root end fixing plate 35, with a gap 1-23 between the two. Figure 11 、 Figure 12 The conveyor belt is composed of a fixed root end of vegetable seedlings. The specific combination method is that the root end fixing plate 35 is fixed to the root end fixing plate support seat 34 by a bolt 38, and the circular hinges on the left and right sides of the multiple root end fixing plate support seats 34 are connected to each other to form the scion root end conveyor belt 4 and the root stock root end conveyor belt 11. The root end fixing plate 35 is provided with a root end seedling clamping spring 36 and a root end seedling clamping block 37, which are used to clamp the root end seedlings of the vegetable seedlings and play a role in fixing the root end. The triangular notch at one end of the root end fixing plate 35 matches the angle of the rootstock V-shaped inner bevel grafting knife 2404, and there is a gap 1-23 between the two.

[0034] When the vegetable scion and rootstock seedlings are synchronously transported to the scion shearing device 3 and the rootstock shearing device 24, they are sheared synchronously. The scion grafting knife drive motor 302 drives the scion shearing eccentric wheel 303 to rotate. The scion shearing eccentric wheel 303 is provided with a scion shearing groove 305. The scion shearing groove 305 cooperates with the limiting groove 306 and the 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 shearing groove 305 provided on the scion shearing eccentric wheel 303. When the scion shearing eccentric wheel 303 rotates, the scion V-shaped outer bevel grafting knife 304 reciprocates up and down, thereby shearing the scion. The inclined surface 308 of the scion V-shaped outer bevel grafting knife can ensure that the extrusion damage to the true leaf end is reduced when shearing the scion. The rootstock grafting knife drive motor 2403 drives the eccentric wheel 2402 of the rootstock shearing device to rotate. A groove is provided on the side of the eccentric wheel 2402 of the rootstock shearing device, and the groove cooperates with the limiting groove and the 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 eccentric wheel 2402 of the rootstock shearing device. When the eccentric wheel 2402 of the rootstock shearing device rotates, the rootstock V-shaped inner bevel grafting knife 2404 reciprocates up and down, playing the role of shearing the rootstock, wherein the bevel 2405 of the rootstock V-shaped inner bevel grafting knife can ensure that when shearing the rootstock, the squeezing damage to the rootstock root end is reduced.

[0035] The true leaf end of the sheared scion and the rootstock end are respectively conveyed on the scion true leaf end conveyor belt 2 and the rootstock root end conveyor belt 11, and the rootstock root end and the true leaf end of the sheared scion are respectively conveyed on the scion root end conveyor belt 4 and the rootstock true leaf end conveyor belt 19, wherein the rootstock end of the scion is rejected by the scion root end rejection device 22 at the lower end of the scion root end conveyor belt 4 and then discharged from the scion root end impurity removal port 27, and the four scion root end rejection claws 221 protruding from the scion root end rejection device 22 are respectively located between three pairs of gaps composed of root end seedling clamping springs 36 and root end seedling clamping blocks 37 on the root end fixing plate 35 to ensure that the rejection claws and the scion root end conveyor belt 4 do not interfere with each other in rotation. The true leaf end of the rootstock is removed from the rootstock true leaf end conveyor belt 19 by the rootstock true leaf end removal device 21 and discharged from the rootstock true leaf end impurity removal port 28. The four rootstock true leaf end removal claws 211 protruding from the rootstock true leaf end removal device 21 are respectively located between three pairs of gaps formed by the true leaf end seedling clamping springs 31 and the true leaf end seedling clamping blocks 32 on the true leaf end fixing plate 29, ensuring that the removal claws and the rootstock true leaf end conveyor belt 19 do not interfere with each other in rotation.

[0036] The sheared scion true leaf end and the stock root stem end are fitted and docked at the junction of the stock root stem end conveyor belt 11 and the scion true leaf end conveyor belt 2, and then transported to the grafting mechanism 1-3 for completion of the grafting and fixing.

[0037] The grafting clamp 39 is used to fix the true leaf end of the scion wood and the rootstock root end after the bonding. The grafting clamp 39 is provided with a flexible sealing layer 39-3 on one side of the joint part. Figure 17 As shown, a grafting clamp side sealing ring 391 and a grafting clamp bottom sealing ring 392 are provided, both of which are made of flexible materials. The inclined support layers on both sides are inclined to both sides in the middle of their respective sides, leaving a cavity in the middle. When clamping the seedlings, the cavity is in contact with the seedling stem. While ensuring that the sealing ring has a certain elasticity, it can also reduce the extrusion of the seedling stem, and provide a closed environment for the attachment interface with low damage. When the grafting clamp 39 fixes the vegetable seedlings, it provides a relatively closed environment for the seedling attachment wound, and the flexible material can prevent the grafting clamp from clamping too much force and damaging the seedlings. Compared with ordinary deformable flexible sealing layers, the advantages of this sealing ring are: it can reduce the extrusion of the seedling stem and provide a more stable closed environment (because this structure can be deformed, the seedling stem fits more tightly).

[0038] The grafting clamp 39 is first placed in the loading box 5, and the loading box 5 is flexibly fixed on the grafting clamp loading box fixing bracket 7 through the grafting clamp loading box spring 6. The vibration component is composed of an upper and lower vibration electromagnetic vibrator 25 and a left and right vibration electromagnetic vibrator 26. The grafting clamp 39 is vibrated in the loading box 5 by the upper and lower vibration electromagnetic vibrator 25 and the left and right vibration electromagnetic vibrator 26 to the Y-shaped opening 501 of the grafting clamp loading box and falls out to the Y-shaped guide groove 801 of the grafting clamp guide tube, and then transported through the Y-shaped guide groove 801 of the grafting clamp guide tube and stored in the grafting clamp guide tube 8. When the infrared sensor 10 continuously detects that the grafting clamp 39 is missing at the infrared sensor 10 in the grafting clamp guide tube 8, it is determined that the grafting clamp 39 is missing, and the buzzer 43 starts to alarm. The cause of the missing grafting clamp 39 is manually checked and repaired. When the grafting clamp 39 moves to the outlet of the lower end of the grafting clamp guide tube 8, the head 39-2 of the grafting clamp 39 is stuck in the channel 802-1 of the limit block 802 at the outlet of the grafting clamp guide tube. The grafting clamp 39 temporarily stays at the outlet of the lower end of the grafting clamp guide tube 8, and the pushing assembly is combined with the grafting clamp push rod 45 to open the pushing channel 802-1. The pushing assembly includes a horizontal power assembly that can push the grafting clamp push rod 45 to extend and retract horizontally and a vertical power assembly that pushes the horizontal power assembly to move up and down. For example, the specific structure and use process of the pushing assembly are as follows: the grafting clamp drive motor 41 drives the grafting clamp eccentric wheel 42 to rotate. The grafting clamp eccentric wheel 42 is provided with a groove on the side. The groove cooperates with the limit groove and protrusion at the upper end of the grafting clamp power push rod 40. When the grafting clamp eccentric wheel 42 rotates, the grafting clamp power push rod 40 reciprocates up and down. The grafting clamp power push rod 40 reciprocates up and down, driving the grafting clamp push rod 45 to move downward. Due to the limiting effect of the grafting clamp push rod limiting inclined surface 47, the grafting clamp push rod 45 will compress the grafting clamp push rod spring 46 and move horizontally while moving downward. When the grafting clamp push rod 45 moves horizontally, the extended grafting clamp push rod 45 will extend into the head 39-2 in the grafting clamp guide tube 8. In conjunction with the downward movement of the grafting clamp push rod 45, the grafting clamp 39 will be pushed out of the grafting clamp guide tube 8 in an open manner, and the vegetable seedlings after the grafting will be fixed. When the grafting clamp push rod 45 moves upward, due to the elastic potential energy of the grafting clamp push rod spring 46, the grafting clamp push rod spring 46 moves horizontally in the opposite direction of the downward movement, returns to the initial position, and prepares to push the next grafting clamp 39. Under the action of the grafting clamp spring 44, the grafting clamp 39 remains closed during the transportation process.

[0039] The above are merely preferred embodiments of the present invention and are not intended to limit or restrict the present invention. Researchers or technicians in this field will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, improvements, and the like made within the spirit and principles of the present invention are intended to be included within the scope of protection claimed by the present invention.

Claims

1. A vegetable seedling grafting device, comprising a vegetable seedling shearing mechanism (1-1), a conveyor belt mechanism (1-2) and a grafting mechanism (1-3), wherein the vegetable seedling shearing mechanism (1-1) comprises a scion seedling grafting knife (1-11) for shearing scion and a rootstock seedling grafting knife (1-12) for shearing rootstock, the scion seedling grafting knife (1-11) being located above the scion seedling shearing station, and the rootstock seedling grafting knife (1-12) being located at the rootstock shearing station; The conveying mechanism (1-2) comprises a scion conveyor belt (1-21) for conveying scion seedlings and a rootstock conveyor belt (1-22) for conveying rootstock seedlings. The scion conveyor belt (1-21) is provided with a scion shearing station and a grafting station. The rootstock conveyor belt (1-22) is provided with a rootstock shearing station and a grafting station. A grafting mechanism (1-3) for fixing the butted scion true leaf end and the rootstock root stem end is provided above the grafting station. The invention is characterized in that: The spicate conveyor belt (1-21) and the rootstock conveyor belt (1-22) are arranged in an upper and lower position and operate synchronously. The spicate conveyor belt (1-21) is composed of a spicate true leaf end conveyor belt (2) and a spicate root stem end conveyor belt (4) with the same level of transmission. The rootstock conveyor belt (1-22) is composed of a rootstock true leaf end conveyor belt (19) and a rootstock root stem end conveyor belt (11) with the same level of transmission. The rootstock true leaf end conveyor belt (19) and the rootstock root stem end conveyor belt (11) are coplanar at the front end and separated at the rear end. The spicate true leaf end conveyor belt (2) and the spicate root stem end conveyor belt (4) are coplanar and arranged side by side after passing through the spicate shearing station. The spicate true leaf end conveyor belt (2) is tilted downward and coplanar with the rootstock root stem end conveyor belt (11), so that the spicate true leaf end and the rootstock root stem end are butted against each other and then pass through the grafting station.

2. A vegetable seedling grafting device according to claim 1, characterized in that: The scion seedling grafting knife (1-11) and / or the rootstock seedling grafting knife (1-12) are driven by a vertical drive mechanism to reciprocate up and down, and the knife heads are V-shaped.

3. A vegetable seedling grafting device according to claim 1, characterized in that: There is an angle between the plane where the blade (1-12-1) of the cutter head is located and the transmission plane, the large end of the blade (1-12-1) is closer to the transmission plane than the small end, and the outer surface or inner surface of the cutter head has a bevel extending to the blade (1-12-1).

4. A vegetable seedling grafting device according to claim 1, characterized in that: The scion wood true leaf end conveyor belt (2), the rootstock true leaf end conveyor belt (19), the scion wood root stem end conveyor belt (4) and the rootstock root stem end conveyor belt (11) are provided with a seedling clamping and fixing device.

5. A vegetable seedling grafting device according to claim 4, characterized in that: It also includes a discarded seedling rejection mechanism (1-4), which is provided with a rejection claw (1-41) inserted into the gap of the seedling clamping and fixing device and transported along with the conveyor belt mechanism (1-2) for rejection.

6. A vegetable seedling grafting device according to claim 5, characterized in that: A collecting port (1-5) is provided below the removal claw (1-41).

7. The vegetable seedling grafting device according to claim 1, characterized in that: A gap opening (1-23) with a matching shape for the scion wood seedling grafting knife (1-11) to pass through is provided between the scion wood true leaf end conveyor belt (2) and the scion wood root stem end conveyor belt (4).

8. The vegetable seedling grafting device according to claim 1, characterized in that: The grafting mechanism (1-3) includes a loading box (5) for placing a grafting clamp (39), a vibration component, a grafting clamp guide tube (8), a limit block (802), a grafting clamp push rod (45) and a pushing component. The loading box (5) equipped with the vibration component for loading is provided with a discharge port that matches the shape of the grafting clamp (39), and the grafting clamp guide tube (8) is docked below the discharge port. A limit block (802) is installed at the outlet of the grafting clamp guide tube (8) and an opening for the grafting clamp push rod (45) to extend into. The limit block (802) is provided at the outlet of the grafting clamp guide tube (8). 02) are relatively arranged to form a channel (802-1) for the clamping portion (39-1) of the grafting clamp (39) to pass through and limit the head (39-2) of the grafting clamp (39), and the grafting clamp push rod (45) extends into the head (39-2) of the grafting clamp (39) as the pushing component moves downward to push the grafting clamp (39) across the channel (802-1). When the grafting clamp (39) passes over the channel (802-1), the clamping portion (39-1) opens to clamp the docking portion, and the grafting clamp push rod (45) is driven to retract by the upward movement of the pushing component.

9. A vegetable seedling grafting device according to claim 8, characterized in that: A flexible sealing layer (39-3) is provided on the surface of the grafting clamp (39) that clamps the docking portion.

10. The vegetable seedling grafting device according to claim 8, characterized in that: The grafting mechanism (1-3) is further provided with an infrared sensor (10) and a buzzer (43) for continuously detecting whether a grafting clip (39) is present in the grafting clip guide tube (8).

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