A rapid watermelon grafting device and method

Abstract

The present invention discloses a rapid watermelon grafting device and method, which relates to the technical field of watermelon grafting, aiming to solve the problem that the existing watermelon grafting method takes a long time and thus has low grafting efficiency. The key points of its technical solution are: including a mounting frame, two clamping components are installed above the mounting frame, a grafting component is installed above the mounting frame, and a support component is fixedly installed at the top of the mounting frame. By means of the clamping components provided in the present invention, multiple rootstocks and seedlings are clamped. The rootstock cutting blade and the inverted V-shaped cutting blade simultaneously cut multiple rootstocks and seedlings. The oil cylinder drives the lifting seat to lift and cooperate with the steering component to drive the cut seedlings to be inserted into the rootstocks from the top of the rootstocks. The multiple grafted seedlings after grafting are clamped and fixed by the first clamping plate and the second clamping plate, realizing rapid grafting of multiple seedlings and rootstocks at one time. Compared with the prior art, the grafting efficiency of the seedlings is effectively improved.

Description

Technical Field

[0001] The present invention belongs to the field of watermelon grafting. Specifically, it relates to a rapid watermelon grafting device and a method for rapid watermelon grafting, involving a rapid watermelon grafting device and method. Background Art

[0002] Watermelon grafting is a common grafting technique used to overcome the continuous cropping obstacle caused by watermelon fusarium wilt. Grafting combines the rootstock of one plant (referred to as the rootstock) with the stem of another plant (referred to as the scion) to form a new plant. In watermelon grafting, rootstocks with good disease resistance and stress tolerance, such as pumpkins and gourds, are usually selected, while scions are selected from high-quality watermelon varieties. Through grafting, the fruit characteristics of high-quality varieties can be combined with the disease resistance and stress tolerance of the rootstock, thereby improving the disease resistance, yield, and quality of watermelons. The specific operation of watermelon grafting includes cutting the scion and rootstock to form mutually matching shapes, then fixing the two with grafting clips. Next, the grafting site is kept moist and appropriate temperature and humidity conditions are provided to promote the healing and growth of the grafting site.

[0003] The existing watermelon grafting methods are all manually completed step by step. Since one watermelon seedling needs to be grafted before the next one can be grafted, and the grafting process is carried out sequentially, it takes a long time, resulting in low grafting efficiency.

[0004] In summary, the present invention provides a rapid watermelon grafting device and method to solve the above problems. Summary of the Invention

[0005] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a rapid watermelon grafting device and method, the advantage of which is to achieve rapid grafting of multiple watermelon seedlings and rootstocks at one time. Compared with the existing technology, it effectively improves the grafting efficiency of watermelon seedlings.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A rapid watermelon grafting device and method, including a mounting frame. Above the mounting frame, two clamping components are installed. Above the mounting frame, a grafting component is installed. At the top of the mounting frame, a support component is fixedly installed. At the top of the support component, a cutting component is fixedly installed. Inside the support component, a steering component is installed. The clamping component includes two support rods, four first cylinders, and two connecting bars. Both of the two connecting bars are slidably installed between the outer surfaces of the two support rods, and a number of arc-shaped clamping plates are fixedly installed on the opposite sides of the two connecting bars.

[0008] By adopting the above technical solutions, two clamping components are respectively used to fix the rootstock and the watermelon seedling, the grafting component is used to clamp the rootstock and the watermelon seedling after insertion, so as to increase the stability of their insertion. The cutting component cuts the rootstock and the watermelon seedling. After the tender bud at the top of the rootstock is manually removed, it is placed in the rootstock limiting groove on the mounting frame, and a plugging notch is cut from the top by the cutting component. The turning component rotates the cut watermelon seedling to the top of the rootstock corresponding to the plugging notch.

[0009] The present invention is further configured as follows: the grafting component includes a plurality of rootstock fixing parts and alignment splicing parts. The rootstock fixing parts include a first clamping plate and a second clamping plate. Two elastic connecting ball rods are fixedly installed on both sides of the back of the first clamping plate. Four annular elastic rings are fixedly installed inside the second clamping plate. The alignment splicing parts include two U-shaped support plates and two clamping plate support bars.

[0010] By adopting the above technical solutions, the opposite sides of the first clamping plate and the second clamping plate are both arc-shaped concave surfaces. The two arc-shaped surfaces can be attached to each other to clamp the connection part of the rootstock and the watermelon seedling, preventing the two from separating. The elastic connecting ball rods are inserted into the annular elastic rings to fixedly connect the first clamping plate and the second clamping plate. The elastic connecting ball rods are deformed by extrusion and pass through the annular elastic rings to splice the first clamping plate and the second clamping plate.

[0011] The present invention is further configured as follows: mounting grooves are opened on both sides of the two U-shaped support plates. Two second cylinders are fixedly installed on the opposite sides of the two U-shaped support plates. Connecting legs are fixedly installed on both sides of the bottom of the two clamping plate support bars. The two connecting legs are respectively slidably installed inside the two mounting grooves. A plurality of clamping plate limiting shells are fixedly installed on the tops of the two clamping plate support bars.

[0012] By adopting the above technical solutions, the second cylinders are connected to an external control switch through the prior art, and the four second cylinder switches are synchronized to drive the two clamping plate support bars to slide relative to each other. The first clamping plate and the second clamping plate are respectively placed inside the clamping plate limiting shells arranged opposite to each other front and back to help them align. When the clamping plate support bars slide, the first clamping plate and the second clamping plate are pushed until the elastic connecting ball rods are inserted into the annular elastic rings.

[0013] The present invention is further configured as follows: the support component includes two left support columns, two right support columns, two hydraulic cylinders and two lifting seats. The two left support columns and the two right support columns are respectively fixedly installed on both sides of the top of the mounting frame.

[0014] By adopting the above technical solution, two hydraulic cylinders are connected through the prior art and an external control switch, and both of them are synchronized. Two left support columns and two right support columns are used to ensure the stability of the vertical lifting of the lifting seat. One of the clamping components located between the support components includes two support rods, which are respectively fixedly installed on the two left support columns and the two right support columns. Four first cylinders in the clamping component are respectively fixedly installed on the two left support columns and the two right support columns through fixing frames, and the telescopic rods are fixed on a connecting bar close to them, respectively controlling the sliding of the two connecting bars.

[0015] The present invention is further configured as follows: the two hydraulic cylinders are respectively fixedly installed on both sides of the mounting frame. One of the lifting seats is slidably connected between the outer surfaces of the two left support columns, and the other lifting seat is slidably connected between the outer surfaces of the two right support columns.

[0016] By adopting the above technical solution, the lifting seat drives the steering component installed on its top to lift under the telescopic action of the hydraulic cylinder, thereby driving the rootstock cutting blade on the steering component to cut the rootstock downward.

[0017] The present invention is further configured as follows: the cutting component includes a plurality of rootstock cutting blades, a plurality of inverted V-shaped cutting blades, an inverted U-shaped support frame, a third cylinder and a connecting rod. The inverted U-shaped support frame is fixedly installed between the tops of the two left support columns and the two right support columns, and the third cylinder is fixedly connected to one side of the top of the inverted U-shaped support frame.

[0018] By adopting the above technical solution, the positions of the rootstock cutting blade, the rootstock limiting groove and the rhizome limiting groove are vertically corresponding up and down. One rootstock is placed in each rootstock limiting groove, and a corresponding rootstock cutting blade is arranged on the top of each rootstock. A rhizome limiting groove is correspondingly arranged above each rootstock cutting blade, and the rhizome limiting groove is used to clamp the rootstock of the watermelon seedling at the rhizome part and align it with the top of the rootstock.

[0019] The present invention is further configured as follows: a plurality of connecting shafts are fixedly installed at the bottom of the connecting rod. A plurality of inverted V-shaped cutting blades are respectively fixedly installed at one ends of the plurality of connecting shafts. A plurality of horizontal limiting grooves are formed at the top of the inverted U-shaped support frame. The plurality of connecting shafts are respectively slidably installed inside the plurality of horizontal limiting grooves. A plurality of rhizome limiting grooves are formed at the top of the inverted U-shaped support frame.

[0020] By adopting the above technical solution, the third cylinder pushes the connecting rod and the connecting shaft. The connecting shaft slides in the horizontal limiting groove and pushes the inverted V-shaped cutting blade to cut the watermelon seedling rootstock clamped in the rootstock limiting groove into a V shape. In order to prevent the rootstock from being bent when being cut, a stop bar can be fixed on one side of the rootstock limiting groove under the inverted U-shaped support frame to support one side of the rootstock, preventing the rootstock from being bent by the thrust when the inverted V-shaped cutting blade cuts the rootstock and affecting the cutting.

[0021] The present invention is further configured as: the steering assembly includes a servo motor and a rotating rod. The servo motor is fixedly installed on the top of one of the lifting seats, and the rotating rod is rotatably installed between the opposite sides of the two lifting seats. A plurality of the rootstock cutting blades are fixedly installed on the outer surface of the rotating rod.

[0022] By adopting the above technical solution, the servo motor is connected to an external control switch through the prior art, and one end of the output shaft is fixed to one end of the rotating rod. The rotation of the rotating rod will turn the direction of the rootstock cutting blade and the cut watermelon seedling. After the watermelon seedling is turned, the rootstock cut into a V shape corresponds to the top of the rootstock.

[0023] The present invention is further configured as: two U-shaped support seats are fixedly installed on the outer surface of the rotating rod. One of the clamping assemblies is installed inside the support assembly, and the other clamping assembly is installed between the opposite sides of the two U-shaped support seats.

[0024] By adopting the above technical solution, the directions of the U-shaped support seats and the rootstock cutting blades are symmetrically arranged for supporting and installing the clamping assemblies. The support rods included in the clamping assembly located between the opposite sides of the two U-shaped support seats are fixedly installed in the U-shaped support seats.

[0025] A watermelon rapid grafting device and method include the following steps:

[0026] Step 1: Remove the apical buds of the selected rootstocks, and place them one by one into the rootstock limiting grooves. Insert the rootstocks of the watermelon seedlings into the corresponding rootstock limiting grooves. The first clamping plate and the second clamping plate are respectively placed into the clamping plate limiting shell in a front-back corresponding manner. Drive the first cylinder to push the connecting bar connected thereto to move relatively under the limiting and guiding of the support rod. The two connecting bars respectively drive the arc-shaped clamping plates connected thereto to fix the rootstocks and the rootstocks of the watermelon seedlings.

[0027] Step 2: Start the hydraulic cylinder to drive the lifting seat to descend, thereby driving the rootstock cutting blade to cut an insertion opening in the middle of the top of the rootstock. At the same time, the third cylinder drives the connecting rod to slide to the right, and then the connecting shaft drives the inverted V-shaped cutting blade to cut the rootstock of the watermelon seedling into a V shape.

[0028] Step 3: The telescopic rod of the hydraulic cylinder extends to drive the rootstock cutting blade to rise to the highest position. The servo motor drives the rotating rod to rotate, rotates the U-shaped support seat to the vertically downward direction, and the cut rootstock of the watermelon seedling is vertically corresponding to the top of the rootstock.

[0029] Step 4: The hydraulic cylinder drives the lifting seat downward until the rootstock of the watermelon seedling is inserted into the insertion opening of the rootstock. The second air cylinder starts to push the two clamping plate support bars closer, thereby respectively bringing the first clamping plate and the second clamping plate closer until the elastic connecting ball rod is inserted into the annular elastic ring, and then the first clamping plate and the second clamping plate can be spliced, and the two clamp and fix the inserted rootstock root and watermelon seedling root, increasing the grafting stability of the watermelon seedling and the rootstock root.

[0030] Step 5: The second air cylinder drives the two clamping plate support bars away to make the first clamping plate and the second clamping plate disengage from the clamping plate limiting shell. The first air cylinder drives the two connecting bars to release the clamped rootstock root and watermelon seedling root, takes out the grafted watermelon seedling and rootstock from the rootstock limiting groove, and removes the rootstock of the watermelon seedling remaining in the rootstock limiting groove after cutting, and then the next grafting work can be repeated.

[0031] In summary, the beneficial technical effects of the present invention are as follows:

[0032] The clamping assembly is provided to clamp multiple rootstocks and seedlings. The rootstock cutting blade and the inverted V-shaped cutting blade simultaneously cut multiple rootstocks and seedlings. The oil cylinder drives the lifting seat to lift and cooperate with the steering assembly to drive the cut seedlings to be inserted into the rootstock from the top of the rootstock. The first clamping plate and the second clamping plate clamp and fix the multiple grafted seedlings after grafting, realizing rapid grafting of multiple seedlings and rootstocks at one time. Compared with the prior art, the grafting efficiency of the seedlings is effectively improved.

[0033] The following further describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. Description of the Drawings

[0034] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained according to these drawings without creative efforts. In the attached

[0035] In the figure:

[0036] Figure 1 is the overall structural schematic diagram of the present invention.

[0037] Figure 2 is the partial structural schematic diagram of the clamping assembly in the present invention.

[0038] Figure 3 This is a schematic diagram of the partial split structure of the grafting component in the present invention.

[0039] Figure 4 This is a schematic diagram of the structure of the support component in the present invention.

[0040] Figure 5 This is a schematic diagram of the split structure of the cutting component in the present invention.

[0041] Figure 6 For the present invention Figure 5 This is a schematic diagram of the enlarged schematic diagram of part A in the present invention.

[0042] Figure 7 This is a schematic diagram of the structure of the steering component in the present invention.

[0043] Figure 8 This is a schematic diagram of the structure of the U-shaped support plate and the clamping component in the present invention.

[0044] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0045] 1. Mounting frame; 2. Clamping component; 201. Support rod; 202. First cylinder; 203. Connecting bar; 204. Arc-shaped clamping plate; 3. Grafting component; 301. Rootstock fixing piece; 3011. First clamping plate; 3012. Second clamping plate; 3013. Elastic connecting ball rod; 3014. Ring-shaped elastic ring; 302. Alignment splicing piece; 3021. U-shaped support plate; 3022. Clamping plate support bar; 3023. Installation groove; 3024. Second cylinder; 3025. Connecting leg; 3026. Clamping plate limit shell; 4. Support component; 401. Left support column; 402. Right support column; 403. Hydraulic cylinder; 404. Lifting seat; 5. Cutting component; 501. Rootstock cutting blade; 502. Inverted V-shaped cutting blade; 503. Inverted U-shaped support frame; 504. Third cylinder; 505. Connecting rod; 506. Connecting shaft; 507. Horizontal limit groove; 508. Rootstock limit groove; 6. Steering component; 601. Servo motor; 602. Rotating rod; 603. U-shaped support seat. Detailed implementation manners

[0046] The following further describes the present invention in detail with reference to the attached drawings.

[0047] Refer to Figure 1 and Figure 2, a watermelon rapid grafting device and method disclosed by the present invention, includes a mounting frame 1. Above the mounting frame 1, two clamping assemblies 2 are installed. Above the mounting frame 1, a grafting assembly 3 is installed. At the top of the mounting frame 1, a support assembly 4 is fixedly installed. At the top of the support assembly 4, a cutting assembly 5 is fixedly installed. Inside the support assembly 4, a steering assembly 6 is installed. The clamping assembly 2 includes two support rods 201, four first cylinders 202, and two connecting bars 203. Among them, two first cylinders 202 are a set of telescopic rods installed on the same connecting bar 203. The two sets of first cylinders 202 are started simultaneously to drive the two connecting bars 203 to slide relatively. The two connecting bars 203 are both slidably installed between the outer surfaces of the two support rods 201. And on the opposite sides of the two connecting bars 203, a number of arc-shaped clamping plates 204 are fixedly installed. Driving the first cylinders 202 to push the connecting bars 203 connected to them to move relatively under the limit and guidance of the support rods 201, so as to drive the arc-shaped clamping plates 204 to fix the rootstalk of the rootstock and the rootstalk of the watermelon seedling.

[0048] Refer to Figure 3 , the grafting assembly 3 of this embodiment includes a number of rootstock fixing parts 301 and alignment splicing parts 302. The rootstock fixing part 301 includes a first clamping plate 3011 and a second clamping plate 3012. On both sides of the back of the first clamping plate 3011, two elastic connecting ball rods 3013 are fixedly installed. Inside the second clamping plate 3012, four annular elastic rings 3014 are fixedly installed. The first clamping plate 3011 and the second clamping plate 3012 approach as the clamping plate support bar 3022 moves, until the elastic connecting ball rod 3013 is inserted into the annular elastic ring 3014 to complete the splicing between the two, so as to clamp and fix the inserted rootstock rootstalk and watermelon seedling rootstalk. The alignment splicing part 302 includes two U-shaped support plates 3021 and two clamping plate support bars 3022. Installation grooves 3023 are opened on both sides of the two U-shaped support plates 3021. On the opposite sides of the two U-shaped support plates 3021, two second cylinders 3024 are fixedly installed. On both sides of the bottom of the two clamping plate support bars 3022, connecting legs 3025 are fixedly installed. The two connecting legs 3025 are respectively slidably installed inside the two installation grooves 3023. The installation grooves 3023 are used to limit the sliding track of the connecting legs 3025, help support the clamping plate support bar 3022 and provide a stable guide during sliding. On the top of the two clamping plate support bars 3022, a number of clamping plate limit shells 3026 are fixedly installed. The clamping plate limit shells 3026 are used to limit and help the first clamping plate 3011 and the second clamping plate 3012 to be aligned. After the first clamping plate 3011 and the second clamping plate 3012 are spliced, the two clamping plate support bars 3022 are driven to move away by the second cylinders 3024, then the first clamping plate 3011 and the second clamping plate 3012 are separated from the clamping plate limit shells 3026.

[0049] Refer toFigure 4 , the support component 4 of this embodiment includes two left support columns 401, two right support columns 402, two hydraulic cylinders 403 and two lifting seats 404. The two left support columns 401 and the two right support columns 402 are respectively fixedly installed on both sides of the top of the mounting frame 1. The two hydraulic cylinders 403 are respectively fixedly installed on both sides of the mounting frame 1. One of the lifting seats 404 is slidably connected between the outer surfaces of the two left support columns 401, and the other lifting seat 404 is slidably connected between the outer surfaces of the two right support columns 402. The hydraulic cylinder 403 drives the lifting seat 404 to lift. The lifting seat 404 drives the rootstock cutting blade 501 and the clamping component 2 installed on the U-shaped support seat 603 to descend through the steering component 6. The rootstock cutting blade 501 descends to complete the cutting of the rootstock. The clamping component 2 installed on the U-shaped support seat 603 descends to drive the watermelon seedling to be inserted into the insertion opening at the top of the rootstock.

[0050] Refer to Figure 5 and Figure 6 , the cutting component 5 of this embodiment includes several rootstock cutting blades 501, several inverted V-shaped cutting blades 502, an inverted U-shaped support frame 503, a third air cylinder 504 and a connecting rod 505. The inverted U-shaped support frame 503 is fixedly installed between the tops of the two left support columns 401 and the two right support columns 402. The third air cylinder 504 is fixedly connected to one side of the top of the inverted U-shaped support frame 503. The bottom of the connecting rod 505 is fixedly installed with several connecting shafts 506. Several inverted V-shaped cutting blades 502 are respectively fixedly installed at one ends of the several connecting shafts 506. Several horizontal limiting grooves 507 are formed in the top of the inverted U-shaped support frame 503. Several connecting shafts 506 are respectively slidably installed inside the several horizontal limiting grooves 507. Several rootstock limiting grooves 508 are formed in the top of the inverted U-shaped support frame 503. By driving the connecting rod 505 and the connecting shaft 506 to slide to the right by the third air cylinder 504, the connecting shaft 506 drives the inverted V-shaped cutting blade 502 to cut the rootstock of the watermelon seedling into an inverted V shape. Later, the servo motor 601 drives the rotating rod 602 to rotate, and the direction of the U-shaped support seat 603 can be reversed. The U-shaped support seat 603 will drive one of the clamping components 2 installed thereon to reverse the direction, and the watermelon seedling can be turned upright. The inverted V-shaped incision becomes a V-shaped snap, which is convenient for inserting the rootstock of the watermelon seedling into the insertion opening at the top of the rootstock.

[0051] Refer to Figure 7 and Figure 8, the steering component 6 of this embodiment includes a servo motor 601 and a rotating rod 602. The servo motor 601 is fixedly installed on the top of one of the lifting seats 404. The rotating rod 602 is rotatably installed between the opposite sides of the two lifting seats 404. A plurality of rootstock cutting blades 501 are fixedly installed on the outer surface of the rotating rod 602. The servo motor 601 is connected to an external control switch through the prior art, and one end of the output shaft is fixed to one end of the rotating rod 602. One end of the rotating rod 602 connected to the servo motor 601 penetrates through one of the lifting seats 404 and extends to one side of the lifting seat 404, and the penetration part is rotatably connected. Two U-shaped support seats 603 are fixedly installed on the outer surface of the rotating rod 602. One of the clamping components 2 is installed inside the support component 4, and the other clamping component 2 is installed between the opposite sides of the two U-shaped support seats 603. The servo motor 601 drives the rotating rod 602 to rotate to vertically align the cut rootstock of the watermelon seedling with the top of the rootstock.

[0052] A watermelon rapid grafting device and method include the following steps:

[0053] Step 1: Remove the apical buds of the selected rootstocks and place them one by one into the rootstock limit grooves. Insert the rootstocks of the watermelon seedlings into the rootstock limit grooves 508 correspondingly. The first clamping plate 3011 and the second clamping plate 3012 are respectively placed into the clamping plate limit housing 3026 front and back correspondingly. Drive the first cylinder 202 to push the connecting bar 203 connected to it to move relatively under the limit and guidance of the support rod 201. The two connecting bars 203 respectively drive the arc-shaped clamping plates 204 connected to them to fix the rootstocks and the rootstocks of the watermelon seedlings.

[0054] Step 2: Start the hydraulic cylinder 403 to drive the lifting seat 404 to descend, thereby driving the rootstock cutting blade 501 to cut an insertion opening in the middle of the top of the rootstock. At the same time, the third cylinder 504 drives the connecting rod 505 to slide to the right, and then the connecting shaft 506 drives the inverted V-shaped cutting blade 502 to cut the rootstock of the watermelon seedling into a V shape.

[0055] Step 3: The telescopic rod of the hydraulic cylinder 403 extends to drive the rootstock cutting blade 501 to rise to the highest position. Drive the rotating rod 602 to rotate through the servo motor 601, rotate the U-shaped support seat 603 to the vertically downward direction, and the cut rootstock of the watermelon seedling is vertically aligned with the top of the rootstock.

[0056] Step 4: Drive the lifting seat 404 downward through the hydraulic cylinder 403 until the root and stem of the watermelon seedling are inserted into the scion insertion opening of the rootstock. Start the second cylinder 3024 to drive the two clamping plate support bars 3022 to approach each other, thereby bringing the first clamping plate 3011 and the second clamping plate 3012 closer to each other until the elastic connecting ball rod 3013 is inserted into the annular elastic ring 3014, and then the first clamping plate 3011 and the second clamping plate 3012 can be spliced, and the two will clamp and fix the grafted rootstock root and watermelon seedling root, increasing the grafting stability of the watermelon seedling and the rootstock root;

[0057] Step 5: Drive the two clamping plate support bars 3022 away from each other through the second cylinder 3024 so that the first clamping plate 3011 and the second clamping plate 3012 are disengaged from the clamping plate limit housing 3026. Drive the two connecting bars 203 through the first cylinder 202 to release the clamped rootstock root and watermelon seedling root, take out the grafted watermelon seedling and rootstock from the rootstock limit groove, and remove the watermelon seedling root remaining in the root limit groove 508 after cutting, and then the next grafting work can be repeated.

[0058] When the present invention is used: Place the rootstocks with the apical buds removed one by one into the rootstock limit grooves, and insert the root and stem of the watermelon seedling into the root limit groove 508 correspondingly. Place the first clamping plate 3011 and the second clamping plate 3012 into the clamping plate limit housing 3026 front and back correspondingly. Drive the first cylinder 202, and the first cylinder 202 will drive the connecting bar 203 connected thereto to move relatively under the limit guidance of the support rod 201. The two connecting bars 203 will respectively drive the arc-shaped clamping plates 204 connected thereto to fix the rootstock root and the watermelon seedling root. Start the hydraulic cylinder 403 to drive the lifting seat 404 to descend, and the lifting seat 404 will drive the rootstock cutting blade 501 to descend to cut an insertion opening in the middle of the top of the rootstock. At the same time, the third cylinder 504 drives the connecting rod 505 to slide to the right, and the connecting rod 505 slides in the horizontal limit groove 507 through the connecting shaft 506, thereby driving the inverted V-shaped cutting blade 502 to cut the root and stem of the watermelon seedling into a V shape. Then the hydraulic cylinder 403 rises to drive the rootstock cutting blade 501 to rise to the highest position, and the servo motor 601 drives the rotating rod 602 to rotate, and rotates the U-shaped support seat 603 to the vertically downward direction. At this time, the rootstock cutting blade 501 is vertically upward, and the cut root and stem of the watermelon seedling are vertically corresponding to the top of the rootstock. The hydraulic cylinder 403 drives the lifting seat 404 downward until the root and stem of the watermelon seedling are inserted into the scion insertion opening of the rootstock;

[0059] The second cylinder 3024 starts to push the clamping plate support bar 3022. The two clamping plate support bars 3022 gradually approach each other under the push of the second cylinder 3024, and respectively push the first clamping plate 3011 and the second clamping plate 3012 closer. The elastic connecting cue 3013 is inserted into the annular elastic ring 3014 through the push to complete the splicing of the first clamping plate 3011 and the second clamping plate 3012, thereby clamping and fixing the grafted rootstock rhizome and watermelon seedling rhizome, increasing the grafting stability of the watermelon seedling and the rootstock rhizome, and then the grafting work of all the watermelon seedlings on the mounting rack 1 can be completed. After the first clamping plate 3011 and the second clamping plate 3012 clamp the rootstock rhizome and the watermelon seedling rhizome, the second cylinder 3024 drives the two clamping plate support bars 3022 to move away, then the first clamping plate 3011 and the second clamping plate 3012 disengage from the clamping plate limit housing 3026. The first cylinder 202 drives the two connecting bars 203 to move away to release the clamped rootstock rhizome and watermelon seedling rhizome, take out the grafted watermelon seedling and rootstock from the rootstock limit groove, and remove the watermelon seedling rhizome remaining in the rootstock limit groove 508 after cutting to perform the next grafting work. Before the next grafting work, first place the arc-shaped grooves of the first clamping plate 3011 and the second clamping plate 3012 opposite to each other and place them in the corresponding front and rear clamping plate limit housings 3026 in sequence, so as to clamp and fix the grafted rootstock rhizome and watermelon seedling.

[0060] The embodiments of this specific implementation manner are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A rapid watermelon grafting device, comprising a mounting frame (1), characterized in that: Two clamping assemblies (2) are installed above the mounting frame (1), a grafting assembly (3) is installed above the mounting frame (1), a supporting assembly (4) is fixedly installed on the top of the mounting frame (1), a cutting assembly (5) is fixedly installed on the top of the supporting assembly (4), a steering assembly (6) is installed on the inner side of the supporting assembly (4), the cutting assembly (5) is used to cut the rootstock and the watermelon seedling, and the steering assembly (6) is used to turn the watermelon seedling cut by the cutting assembly (5) to the top of the rootstock to correspond to the insertion notch; The cutting assembly (5) comprises a plurality of rootstock cutting blades (501), a plurality of inverted V-shaped cutting blades (502), an inverted U-shaped support frame (503), a third cylinder (504) and a connecting rod (505), wherein the third cylinder (504) is fixedly connected to one side of the top of the inverted U-shaped support frame (503); A plurality of connecting shafts (506) are fixedly installed at the bottom of the connecting rod (505), a plurality of the inverted V-shaped cutting blades (502) are respectively fixedly installed at one end of the plurality of the connecting shafts (506), a plurality of transverse limiting grooves (507) are opened at the top of the inverted U-shaped support frame (503), a plurality of the connecting shafts (506) are respectively slidably installed inside the plurality of the transverse limiting grooves (507), and a plurality of root and stem limiting grooves (508) are opened at the top of the inverted U-shaped support frame (503); The steering assembly (6) comprises a servo motor (601) and a rotating rod (602), a plurality of the stock cutting blades (501) are fixedly mounted on the outer surface of the rotating rod (602), two U-shaped support seats (603) are fixedly mounted on the outer surface of the rotating rod (602), one of the clamping assemblies (2) is mounted on the inner side of the supporting assembly (4), and the other clamping assembly (2) is mounted between the opposite sides of the two U-shaped support seats (603).

2. The rapid watermelon grafting device according to claim 1, characterized in that, The clamping assembly (2) comprises two support rods (201), four first cylinders (202) and two connecting bars (203), wherein the two connecting bars (203) are slidably mounted between the outer surfaces of the two support rods (201), and a plurality of arc-shaped clamping plates (204) are fixedly mounted on opposite sides of the two connecting bars (203).

3. The watermelon rapid grafting device according to claim 2, characterized in that, The grafting assembly (3) comprises a plurality of rhizome fixing parts (301) and an alignment splicing part (302), wherein the rhizome fixing part (301) comprises a first clamping plate (3011) and a second clamping plate (3012), two elastic connecting ball rods (3013) are fixedly mounted on both sides of the back of the first clamping plate (3011), and four annular elastic rings (3014) are fixedly mounted inside the second clamping plate (3012), and the alignment splicing part (302) comprises two U-shaped support plates (3021) and two clamping plate support strips (3022).

4. The watermelon rapid grafting device according to claim 3, characterized in that, Installation grooves (3023) are formed on both sides of the two U-shaped support plates (3021). Two second cylinders (3024) are fixedly installed on the separated sides of the two U-shaped support plates (3021). Connecting legs (3025) are fixedly installed on both sides of the bottom of the two clamping plate support bars (3022). The two connecting legs (3025) are respectively slidably installed inside the two installation grooves (3023). A number of clamping plate limit shells (3026) are fixedly installed on the top of the two clamping plate support bars (3022).

5. The rapid watermelon grafting device according to claim 4, characterized in that, The support assembly (4) includes two left support columns (401), two right support columns (402), two hydraulic cylinders (403) and two lifting seats (404). The two left support columns (401) and the two right support columns (402) are respectively fixedly installed on both sides of the top of the mounting frame (1).

6. The watermelon rapid grafting device according to claim 5, characterized in that, The inverted U-shaped support frame (503) is fixedly installed between the tops of the two left support columns (401) and the two right support columns (402). The servo motor (601) is fixedly installed on the top of one of the lifting seats (404). The rotating rod (602) is rotatably installed between the opposite sides of the two lifting seats (404).

7. The rapid watermelon grafting device according to claim 6, characterized in that, The two hydraulic cylinders (403) are respectively fixedly installed on both sides of the mounting frame (1). One of the lifting seats (404) is slidably connected between the outer surfaces of the two left support columns (401), and the other lifting seat (404) is slidably connected between the outer surfaces of the two right support columns (402).

8. A rapid watermelon grafting method, including a rapid watermelon grafting device according to claim 7, characterized in that, It includes the following steps: Step 1: Remove the apical buds of the selected rootstocks and place them one by one into the rootstock limit grooves. Insert the rootstems of the watermelon seedlings into the rootstock limit grooves (508). The first clamping plate (3011) and the second clamping plate (3012) are respectively placed into the clamping plate limit shells (3026) in a front-back correspondence. Drive the first cylinder (202) to push the connecting bar (203) connected thereto to move relatively under the limit and guidance of the support bar (201). The two connecting bars (203) respectively drive the arc-shaped clamping plates (204) connected thereto to fix the rootstocks and the rootstems of the watermelon seedlings; Step 2: Start the hydraulic cylinder (403) to drive the lifting seat (404) to descend, so as to drive the rootstock cutting blade (501) to cut an insertion opening in the middle of the top of the rootstock. At the same time, the third cylinder (504) drives the connecting rod (505) to slide to the right, and then the connecting shaft (506) drives the inverted V-shaped cutting blade (502) to cut the rootstem of the watermelon seedling into a V shape; Step 3: The telescopic rod of the hydraulic cylinder (403) extends to drive the rootstock cutting blade (501) to rise to the highest position. Drive the rotating rod (602) to rotate through the servo motor (601), and rotate the U-shaped support seat (603) to the vertically downward direction, and the cut rootstem of the watermelon seedling is vertically corresponding to the top of the rootstock; Step 4: Drive the lifting seat (404) downward through the hydraulic cylinder (403) until the root and stem of the watermelon seedling are inserted into the scion insertion opening of the rootstock. Start the second cylinder (3024) to push the two clamping plate support bars (3022) closer, so as to bring the first clamping plate (3011) and the second clamping plate (3012) closer respectively until the elastic connecting ball rod (3013) is inserted into the annular elastic ring (3014), then the first clamping plate (3011) and the second clamping plate (3012) can be spliced, and the spliced rootstock root and watermelon seedling root are clamped and fixed, increasing the grafting stability of the watermelon seedling and the rootstock root; Step 5: Drive the two clamping plate support bars (3022) away through the second cylinder (3024) to make the first clamping plate (3011) and the second clamping plate (3012) disengage from the clamping plate limit shell (3026). Drive the two connecting bars (203) through the first cylinder (202) to release the clamped rootstock root and watermelon seedling root, take out the grafted watermelon seedling and rootstock from the rootstock limit groove, and remove the watermelon seedling root remaining in the root limit groove (508) after cutting, then the next grafting work can be repeated.

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