Sweet potato seedling tidying device for sweet potato seedling raising experimental field and use method of sweet potato seedling tidying device

Abstract

The invention relates to the technical field of grinding equipment, in particular to a sweet potato seedling tidying device for a sweet potato seedling raising experiment field, which comprises a platform, a sliding clamping part, a sweet potato seedling tray, a heat-shrinkable sleeve seat, a heating sleeve and a heat-shrinkable bag fixing part, the sliding clamping parts and the sweet potato seedling trays can slide along the surface of the platform, the sweet potato seedling trays are installed on the side edges of one set of sliding clamping parts, the sweet potato seedling trays and the sliding clamping parts are matched to form sweet potato seedling placing channels, the heating sleeve is installed at the end of the heat-shrinkable sleeve seat, and the heating sleeve is connected with external power supply equipment. The thermal shrinkage bag fixing part is clamped to the end of the heating sleeve, the thermal shrinkage bag fixing part and the heating sleeve form a thermal shrinkage space, sweet potato seedlings enter the heating sleeve under pushing of the sliding clamping part, thermal shrinkage packaging is completed, and compared with an existing hand bundling mode, tightening damage to the sweet potato seedlings is reduced, and the tidying efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of grinding equipment technology, specifically to a sweet potato seedling preparation device for a sweet potato seedling experimental field and its usage method. Background Technology

[0002] The main methods of sweet potato seedling cultivation include vine seedling cultivation, direct seed potato seedling cultivation, hydroponic seedling cultivation, and seedbed seedling cultivation. The common feature of these methods is that seedlings are cultivated by cutting buds and planting them. The selected sweet potato seedlings need to be sorted and packaged.

[0003] Currently, the common method for tidying and packing sweet potato seedlings is manual bundling. This method requires excessive tension to bind the seedlings, which can cause damage to the stems of the outer seedlings and lead to their death. At the same time, it can also reduce the survival rate of the inner seedlings due to pressure. Therefore, a sweet potato seedling tidying device and its usage method for experimental sweet potato seedling cultivation fields are proposed. Summary of the Invention

[0004] In order to solve the technical problems existing in the prior art, the present invention provides a sweet potato seedling acclimation device for sweet potato seedling experimental fields and its usage method.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a sweet potato seedling preparation device for a sweet potato seedling experimental field, comprising a platform, a sliding clamping part, a sweet potato seedling tray, a heat shrink sleeve seat, a heating sleeve, and a heat shrink bag fixing part;

[0006] The sliding clamping part and the heat shrink tubing seat are respectively installed on the outer sides of the platform, and the sliding clamping part and the sweet potato seedling tray can slide along the surface of the platform;

[0007] The sweet potato seedling tray is installed on the side of a set of sliding clamping parts, and the sweet potato seedling tray and the sliding clamping parts cooperate to form a sweet potato seedling placement channel;

[0008] The heating sleeve is installed at the end of the heat shrink tubing seat and is connected to an external power supply device.

[0009] The heat shrink bag fixing part is engaged with the end of the heating sleeve, and the heat shrink bag fixing part and the heating sleeve form a heat shrink space.

[0010] Preferably, the sliding clamping part includes a sliding base, a clamping seat, a first clamp, a second clamp, a clamp linkage part, and a first push rod. The sliding base is sleeved on the outside of the platform, the clamping seat is welded to the top of the sliding base, the first clamp and the second clamp are both mounted on the upper part of the clamping seat via a rotating shaft, the clamp linkage part is installed between the first clamp and the second clamp, and the first push rod is disposed between the end of the first clamp and the bottom of the clamping seat.

[0011] Preferably, the second gripper includes a first gripper body, an auxiliary gripper, and a second push rod. The first gripper body is connected to the gripping seat via a rotating shaft. The first gripper body and the first gripper are flush with each other. The auxiliary gripper is connected to the first gripper body via a rotating shaft. The two ends of the second push rod are connected to the auxiliary gripper and the first gripper body, respectively. The auxiliary gripper is pushed by the second push rod.

[0012] Preferably, the first gripper, the first gripper body, and the auxiliary gripper are all arc-shaped, and the auxiliary gripper has a notch in the middle for the first gripper to pass through. The first gripper, the first gripper body, and the auxiliary gripper constitute a movable annular sweet potato seedling fastening part.

[0013] Preferably, the sweet potato seedling tray is arc-shaped to match the first gripper, the first gripper body and the auxiliary gripper, and the bottom of the opening of the sweet potato seedling tray is flush with the first gripper, the first gripper body and the auxiliary gripper.

[0014] Preferably, the gripper linkage part includes a first linkage plate, a second linkage plate and a third linkage plate, wherein the first linkage plate and the second linkage plate are respectively fixed to the surface of the first gripper and the main body of the first gripper, and the two ends of the third linkage plate are respectively connected to the first linkage plate and the second linkage plate.

[0015] Preferably, the heat shrink bag fixing part includes a limiting side plate, a connecting sleeve, an inner auxiliary sleeve, and a heat shrink sleeve fixing groove. The connecting sleeve and the inner auxiliary sleeve are both formed on the same side of the limiting side plate. A heat shrink sleeve fixing groove for placing the heat shrink sleeve is formed between the connecting sleeve and the inner auxiliary sleeve. The limiting side plate is nested inside the heating sleeve through the connecting sleeve.

[0016] Preferably, there is a gap between the heat shrink sleeve fixing groove and the inside of the heating sleeve, the heat shrink sleeve set inside the heat shrink sleeve fixing groove is supported by the heating sleeve, and the heating sleeve is electrically connected to an external power source.

[0017] Preferably, a heating sleeve working control component is provided between the heat shrink tubing seat and the base. The heating sleeve working control component includes a limit spring and a touch switch. The limit spring is installed between the heat shrink tubing seat and the base. The heat shrink tubing seat is pushed by the limit spring. The touch switch is sleeved inside the limit spring and fixedly connected to the inner wall of the base. The touch switch is electrically connected to the heating sleeve.

[0018] A method for using a sweet potato seedling preparation device for an experimental sweet potato seedling cultivation field and its application includes the following steps.

[0019] Step S1: Reset the two sets of sliding clamping parts, leaving a gap between the sliding clamping parts and the heating sleeve;

[0020] Step S2: Remove the heat shrink bag fixing part from the heating sleeve, nest the end of the heat shrink sleeve into the heat shrink sleeve fixing groove, and then reinstall the heat shrink bag fixing part with the heat shrink sleeve into the heating sleeve.

[0021] In step S3, as the connecting sleeve of the heat shrink bag fixing part enters the heating sleeve, the connecting sleeve contacts the inner wall of the heating sleeve and tightens inward due to the restriction of the heating sleeve during continuous entry. The tightened connecting sleeve, together with the inner auxiliary sleeve, clamps and fixes the end of the heat shrink bag;

[0022] Step S4: Place the sweet potato seedlings that need to be arranged in the sweet potato seedling tray and the corresponding sliding clamping part, with the leaf tips of the sweet potato seedlings facing the sweet potato seedling tray and the roots of the sweet potato seedlings placed in another set of sliding clamping parts. All the roots of the sweet potato seedlings are level, and there is a gap of -cm between the roots and the other set of sliding clamping parts.

[0023] Step S5: Push the two sets of first grippers in sequence. The first grippers drive the first push rod to work. The first push rod continuously pushes the first grippers. The first grippers drive the second grippers to move in the opposite direction through the gripper linkage. The first grippers and the second grippers work together to clamp and limit the sweet potato seedlings, keeping the sweet potato seedlings in a bundle.

[0024] Step S6: After the relative positions of the first gripper and the first gripper body are fixed, push the auxiliary gripper. The second push rod is started by the auxiliary gripper and further pushes the auxiliary gripper to rotate relative to the first gripper body. The rotated second push rod can further limit the sweet potato seedlings that are not restricted by the first gripper and the first gripper body. The sweet potato seedlings are bundled under the clamping of the two sets of sliding clamping parts.

[0025] Step S7: Push the bundled sweet potato seedlings. The two sets of sliding clamps move laterally under the action of the sweet potato seedlings. During the lateral movement, the ends of the sweet potato seedlings enter the heat shrink bag fixing part. Release one set of sliding clamps so that the sliding clamps no longer limit the ends of the sweet potato seedlings. Continue to push the other set of sliding clamps so that the sweet potato seedlings continue to enter the heat shrink bag under the action of the other set of sliding clamps.

[0026] Step S8: During the continuous lateral movement of another set of sliding clamping parts, the first set of sliding clamping parts comes into contact with the first set of sliding clamping parts and pushes the first set of sliding clamping parts. When the first set of sliding clamping parts comes into contact with the heating sleeve, the heat shrink tubing seat is further driven to move laterally along the platform.

[0027] In step S9, the heat shrink sleeve seat compresses the limiting spring during the lateral movement until it contacts the touch switch. After being pressed, the touch switch controls the heating sleeve to work. Under the heating of the heating sleeve, the heat shrink bag shrinks and wraps the sweet potato seedling.

[0028] Step S10: Release the other set of sliding clamps, separate the heat shrink bag fixing part from the heating sleeve, and remove the wrapped sweet potato seedling along with the heat shrink bag fixing part. After replacing with a new heat shrink bag, reconnect the heat shrink bag fixing part to the heating sleeve.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0030] 1. The present invention is provided with a sliding clamping part, a heating sleeve and a heat shrink bag fixing part. The sliding clamping part clamps and fixes the sweet potato seedlings to form a bundle. The bundled sweet potato seedlings are pushed into the heating sleeve by the sliding clamping part to complete the heat shrink packaging. Compared with the existing hand binding method, it reduces the damage to the sweet potato seedlings and improves the packing efficiency.

[0031] 2. In this invention, two sets of open sliding clamping parts work together with sweet potato seedling trays to form a sweet potato seedling stacking area. Selected sweet potato seedlings can be placed in the stacking area. The stacking and packaging are carried out by a set of devices, which reduces the transportation of sweet potato seedlings and thus reduces damage to the stems and leaves of sweet potato seedlings. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0033] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0034] Figure 3 This is a three-dimensional cross-sectional view of the sliding clamping part of the present invention;

[0035] Figure 4 This is a schematic diagram of the cooperation between the heat shrink bag fixing part and the heating sleeve working control assembly of the present invention;

[0036] Figure 5 This is a side cross-sectional view of the heat shrink bag fixing part of the present invention;

[0037] Figure 6 This is a schematic diagram of the working control component of the heating sleeve and the sleeve seat of the present invention.

[0038] The numbers in the diagram represent:

[0039] 1. Platform; 2. Sliding clamping part; 21. Sliding base; 22. Clamping seat; 23. First clamping claw; 24. Second clamping claw; 241. Second clamping claw body; 242. Auxiliary clamping claw; 243. Second push rod; 25. Clamping claw linkage part; 251. First linkage plate; 252. Second linkage plate; 253. Third linkage plate; 26. First push rod; 3. Sweet potato seedling tray; 4. Heat shrink sleeve seat; 5. Heating sleeve; 6. Heat shrink bag fixing part; 61. Limiting side plate; 62. Connecting sleeve; 63. Inner auxiliary sleeve; 64. Heat shrink sleeve fixing groove; 7. Heating sleeve working control component; 71. Limiting spring; 72. Touch switch. Detailed Implementation

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments, which illustrate the above and other technical features and advantages of the present invention. However, the following embodiments are merely preferred embodiments of the present invention and are not exhaustive.

[0041] Example:

[0042] like Figure 1 - Figure 6 As shown, the present invention provides a sweet potato seedling preparation device for a sweet potato seedling experimental field, including a platform 1, a sliding clamping part 2, a sweet potato seedling tray 3, a heat shrink sleeve seat 4, a heating sleeve 5, and a heat shrink bag fixing part 6.

[0043] The sliding clamping part 2 and the heat shrink tubing seat 4 are respectively installed on the outer sides of the platform 1. The sliding clamping part 2 and the sweet potato seedling tray 3 can slide along the surface of the platform 1.

[0044] Sweet potato seedling tray 3 is installed on the side of sliding clamping part 2, and sweet potato seedling tray 3 and sliding clamping part 2 cooperate to form sweet potato seedling placement channel;

[0045] The heating sleeve 5 is installed at the end of the heat shrink tubing seat 4, and the heating sleeve 5 is connected to an external power supply device.

[0046] The heat shrink bag fixing part 6 is engaged with the end of the heating sleeve 5, and the heat shrink bag fixing part 6 and the heating sleeve 5 form a heat shrink space.

[0047] The sliding clamping part 2 includes a sliding base 21, a clamping seat 22, a first clamp 23, a second clamp 24, a clamping linkage part 25, and a first push rod 26. The sliding base 21 is sleeved on the outside of the platform 1. The clamping seat 22 is welded to the top of the sliding base 21. The first clamp 23 and the second clamp 24 are both mounted on the upper part of the clamping seat 22 through a rotating shaft. The clamping linkage part 25 is installed between the first clamp 23 and the second clamp 24. The first push rod 26 is located between the end of the first clamp 23 and the bottom of the clamping seat 22. When it is necessary to bind the sweet potato seedlings, the first clamp 23 is pushed to drive the first push rod 26 to work. The first push rod 26 continuously pushes the first clamp 23. The first clamp 23 drives the second clamp 24 to move in the opposite direction through the clamping linkage part 25. The first clamp 23 and the second clamp 24 work together to clamp and limit the sweet potato seedlings, keeping the sweet potato seedlings in a bundled state.

[0048] The gripper linkage 25 includes a first linkage plate 251, a second linkage plate 252, and a third linkage plate 253;

[0049] The first linkage plate 251 and the second linkage plate 252 are respectively fixed to the surfaces of the first gripper 23 and the second gripper body 241. The two ends of the third linkage plate 253 are respectively connected to the first linkage plate 251 and the second linkage plate 252. When the first gripper 23 is pushed by the first push rod 26 to rotate around the axis, the first gripper 23 will drive the first linkage plate 251 to rotate synchronously. The rotating first linkage plate 251 drives the third linkage plate 253 to move synchronously. The second linkage plate 252 connected to the third linkage plate 253 rotates synchronously with the movement of the third linkage plate 253. The second gripper 24 is driven by the third linkage plate 253 to rotate toward the first gripper 23. The rotating first gripper 23 and the second gripper 24 constitute a compression restriction on the sweet potato seedlings placed in the sweet potato seedling placement channel.

[0050] The second gripper 24 includes a second gripper body 241, an auxiliary gripper 242, and a second push rod 243;

[0051] The second gripper body 241 is connected to the gripper seat 22 via a rotating shaft. The second gripper body 241 is flush with the first gripper 23. The auxiliary gripper 242 is connected to the second gripper body 241 via a rotating shaft. The two ends of the second push rod 243 are connected to the auxiliary gripper 242 and the second gripper body 241 respectively. The auxiliary gripper 242 is pushed by the second push rod 243. During the rotation of the second gripper body 241 relative to the first gripper 23, after the relative position of the first gripper 23 and the second gripper body 241 is fixed, the second push rod 243 can further push the auxiliary gripper 242 to rotate relative to the second gripper body 241. After rotation, the second push rod 243 can further limit the sweet potato seedlings that are not restricted by the first gripper 23 and the second gripper body 241, thereby achieving sufficient limitation of different amounts of sweet potato seedlings.

[0052] The first gripper 23, the second gripper body 241, and the auxiliary gripper 242 are all arc-shaped. The auxiliary gripper 242 has a notch in the middle for the first gripper 23 to pass through. The first gripper 23, the second gripper body 241, and the auxiliary gripper 242 constitute a movable annular sweet potato seedling fastening part. During the process of the auxiliary gripper 242 rotating relative to the second gripper body 241 under the push of the second push rod 243, the auxiliary gripper 242 can reach an adaptive position according to the amount of sweet potato seedlings. During this process, the auxiliary gripper 242 can intersect with the first gripper 23, and move to make way in an intersecting manner, thereby ensuring the ability to limit the amount of sweet potato seedlings.

[0053] The sweet potato seedling tray 3 is designed to fit the arc shape of the first gripper 23, the second gripper body 241, and the auxiliary gripper 242. The bottom opening of the sweet potato seedling tray 3 is flush with the first gripper 23, the second gripper body 241, and the auxiliary gripper 242. The sweet potato seedling tray 3, together with the first gripper 23, the second gripper body 241, and the auxiliary gripper 242, forms a sweet potato seedling placement channel for supporting the sweet potato seedlings.

[0054] The heat shrink bag fixing part 6 includes a limiting side plate 61, a connecting sleeve 62, an inner auxiliary sleeve 63, and a heat shrink bag fixing groove 64;

[0055] Both the connecting sleeve 62 and the inner auxiliary sleeve 63 are formed on the same side of the limiting side plate 61. A heat shrinkable sleeve fixing groove 64 for heat shrinkable sleeve placement is formed between the connecting sleeve 62 and the inner auxiliary sleeve 63. The limiting side plate 61 is nested inside the heating sleeve 5 through the connecting sleeve 62. When the limiting side plate 61 is connected to the heating sleeve 5 through the connecting sleeve 62, the connecting sleeve 62 will be restricted by the heating sleeve 5 and tightened inward during the process of entering the heating sleeve 5. The heat shrinkable sleeve placed inside the heat shrinkable sleeve fixing groove 64 is clamped and limited by the inward tightening method, so as to maintain the stability of the heat shrinkable sleeve inside the heat shrinkable sleeve fixing groove 64.

[0056] There is a gap between the heat shrink sleeve fixing groove 64 and the inside of the heating sleeve 5. The heat shrink sleeve set inside the heat shrink sleeve fixing groove 64 is supported by the heating sleeve 5. When the sweet potato seedling group enters into the heat shrink sleeve, the heat shrink sleeve is supported by the heating sleeve 5 to keep the opening stable, which facilitates the entry of the sweet potato seedling group and reduces the friction between the heat shrink sleeve and the sweet potato seedling group. The heating sleeve 5 is electrically connected to an external power source. With the electrical connection of the heating sleeve 5, the heating sleeve 5 heats the heat shrink sleeve, causing the heat shrink sleeve to shrink due to heat. The shrunken heat shrink sleeve fixes the sweet potato seedling group.

[0057] A heating sleeve working control component 7 is provided between the heat shrink sleeve base 4 and the base 1. The heating sleeve working control component 7 includes a limit spring 71 and a touch switch 72. The limit spring 71 is installed between the heat shrink sleeve base 4 and the base 1. The heat shrink sleeve base 4 is pushed by the limit spring 71. The touch switch 72 is sleeved inside the limit spring 71 and fixedly connected to the inner wall of the base 1. The touch switch 72 is electrically connected to the heating sleeve 5. After the sweet potato seedling group is fixed by the sliding clamping part 2, the end of the sweet potato seedling group is put into the heat shrink sleeve fixed by the heat shrink bag fixing part 6 by pushing the sliding clamping part 2. During the lateral movement, the sliding clamping part 2 pushes the heat shrink sleeve base 4 to move laterally. During the lateral movement, the heat shrink sleeve base 4 compresses the limit spring 71 until it contacts the touch switch 72. After being pressed, the touch switch 72 controls the heating sleeve 5 to work.

[0058] A method for using a sweet potato seedling preparation device for experimental sweet potato seedling cultivation fields and its application:

[0059] Reset the two sets of sliding clamping parts 2, leaving a gap between the sliding clamping parts 2 and the heating sleeve 5. Remove the heat shrink bag fixing part 6 from the heating sleeve 5, nest the end of the heat shrink sleeve into the heat shrink sleeve fixing groove 64, and then reinstall the heat shrink bag fixing part 6 with the heat shrink sleeve connected into the heating sleeve 5. During the process of the connecting sleeve 62 of the heat shrink bag fixing part 6 entering the heating sleeve 5, the connecting sleeve 62 contacts the inner wall of the heating sleeve 5 and tightens inward due to the restriction of the heating sleeve 5 during the continuous entry. The tightened connecting sleeve 62, together with the inner auxiliary sleeve 63, clamps and fixes the end of the heat shrink bag.

[0060] Place the sweet potato seedlings to be bundled into the sweet potato seedling tray 3 and the corresponding sliding clamping parts 2, with the leaf tips of the seedlings facing the tray 3 and the roots of the seedlings placed in another set of sliding clamping parts 2. All the roots of the sweet potato seedlings should be level, with a 1-2 cm gap between the roots and the other set of sliding clamping parts 2. Push the two sets of first clamping claws 23 in sequence. The first clamping claws 23 drive the first push rod 26 to work. The first push rod 26 continuously pushes the first clamping claws 23. The first clamping claws 23 drive the second clamping claws 24 to move in the opposite direction through the clamping claw linkage part 25. The first clamping claws 23 and the second clamping claws 24 work together to clamp and limit the sweet potato seedlings, keeping them in a bundle. After the relative positions of the first clamping claws 23 and the main bodies 241 of the second clamping claws are fixed, push the auxiliary clamping claws 242. After the second push rod 243 is activated by the auxiliary gripper 242, it further pushes the auxiliary gripper 242 to rotate relative to the second gripper body 241. After rotation, the second push rod 243 can further limit the sweet potato seedlings that are not restricted by the first gripper 23 and the second gripper body 241. The sweet potato seedlings are bundled under the grip of the two sets of sliding clamping parts 2. Pushing the bundled sweet potato seedlings causes the two sets of sliding clamping parts 2 to move laterally under the action of the sweet potato seedlings. During the lateral movement, the ends of the sweet potato seedlings enter the heat shrink bag fixing part 6, releasing one set of sliding clamping parts 2 so that the sliding clamping parts 2 no longer limit the ends of the sweet potato seedlings. Continuing to push the other set of sliding clamping parts 2 will allow the sweet potato seedlings to continue to enter the heat shrink bag under the action of the other set of sliding clamping parts 2.

[0061] During the continuous lateral movement of the other set of sliding clamping parts 2, it first contacts the first set of sliding clamping parts 2 and pushes the first set of sliding clamping parts 2. When the first set of sliding clamping parts 2 contacts the heating sleeve 5, it further drives the heat shrink sleeve seat 4 to move laterally along the platform 1. During the lateral movement, the heat shrink sleeve seat 4 compresses the limit spring 71 until it contacts the touch switch 72. After being pressed, the touch switch 72 controls the heating sleeve 5 to work. Under the heating of the heating sleeve 5, the heat shrink bag shrinks and wraps the sweet potato seedling, freeing the other set of sliding clamping parts 2, separating the heat shrink bag fixing part 6 from the heating sleeve 5. The wrapped sweet potato seedling is removed along with the heat shrink bag fixing part 6. After replacing the new heat shrink bag, the heat shrink bag fixing part 6 is reconnected to the heating sleeve 5.

[0062] The above description is merely a preferred embodiment of the present invention and is illustrative rather than restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A sweet potato seedling preparation device for use in experimental sweet potato seedling cultivation fields, characterized in that, It includes a base (1), a sliding clamping part (2), a sweet potato seedling tray (3), a heat shrink sleeve seat (4), a heating sleeve (5), and a heat shrink bag fixing part (6); The sliding clamping part (2) and the heat shrink sleeve seat (4) are respectively installed on the outer sides of the platform (1), and the sliding clamping part (2) and the sweet potato seedling tray (3) can slide along the surface of the platform (1); The sweet potato seedling tray (3) is installed on the side of a set of sliding clamping parts (2), and the sweet potato seedling tray (3) and the sliding clamping parts (2) cooperate to form a sweet potato seedling placement channel; The heating sleeve (5) is installed at the end of the heat shrink tubing seat (4), and the heating sleeve (5) is connected to an external power supply device; The heat shrink bag fixing part (6) is engaged with the end of the heating sleeve (5), and the heat shrink bag fixing part (6) and the heating sleeve (5) form a heat shrink space.

2. The sweet potato seedling preparation device for experimental sweet potato seedling cultivation as described in claim 1, characterized in that, The sliding clamping part (2) includes a sliding base (21), a clamping seat (22), a first clamp (23), a second clamp (24), a clamp linkage part (25), and a first push rod (26). The sliding base (21) is sleeved on the outside of the platform (1). The clamping seat (22) is welded to the top of the sliding base (21). The first clamp (23) and the second clamp (24) are both mounted on the upper part of the clamping seat (22) through a rotating shaft. The clamp linkage part (25) is installed between the first clamp (23) and the second clamp (24). The first push rod (26) is located between the end of the first clamp (23) and the bottom of the clamping seat (22).

3. The sweet potato seedling preparation device for a sweet potato seedling experimental field as described in claim 2, characterized in that, The second gripper (24) includes a second gripper body (241), an auxiliary gripper (242), and a second push rod (243). The second gripper body (241) is connected to the clamping seat (22) via a rotating shaft. The second gripper body (241) is flush with the first gripper (23). The auxiliary gripper (242) is connected to the second gripper body (241) via a rotating shaft. The two ends of the second push rod (243) are connected to the auxiliary gripper (242) and the second gripper body (241) respectively. The auxiliary gripper (242) is pushed by the second push rod (243).

4. The sweet potato seedling preparation device for a sweet potato seedling experimental field as described in claim 3, characterized in that, The first gripper (23), the second gripper body (241), and the auxiliary gripper (242) are all arc-shaped. The auxiliary gripper (242) has a notch in the middle for the first gripper (23) to pass through. The first gripper (23), the second gripper body (241), and the auxiliary gripper (242) constitute a movable annular sweet potato seedling fastening part.

5. The sweet potato seedling preparation device for a sweet potato seedling experimental field as described in claim 4, characterized in that, The sweet potato seedling tray (3) is arc-shaped to match the first clamp (23), the second clamp body (241) and the auxiliary clamp (242). The bottom of the opening of the sweet potato seedling tray (3) is flush with the first clamp (23), the second clamp body (241) and the auxiliary clamp (242).

6. The sweet potato seedling preparation device for a sweet potato seedling experimental field as described in claim 5, characterized in that, The gripper linkage part (25) includes a first linkage plate (251), a second linkage plate (252) and a third linkage plate (253). The first linkage plate (251) and the second linkage plate (252) are respectively fixed to the surface of the first gripper (23) and the second gripper body (241). The two ends of the third linkage plate (253) are respectively connected to the first linkage plate (251) and the second linkage plate (252).

7. The sweet potato seedling preparation device for experimental sweet potato seedling cultivation fields as described in claim 1, characterized in that, The heat shrink bag fixing part (6) includes a limiting side plate (61), a connecting sleeve (62), an inner auxiliary sleeve (63), and a heat shrink sleeve fixing groove (64). The connecting sleeve (62) and the inner auxiliary sleeve (63) are both formed on the same side of the limiting side plate (61). A heat shrink sleeve fixing groove (64) for placing the heat shrink sleeve is formed between the connecting sleeve (62) and the inner auxiliary sleeve (63). The limiting side plate (61) is nested inside the heating sleeve (5) through the connecting sleeve (62).

8. The sweet potato seedling preparation device for a sweet potato seedling experimental field as described in claim 7, characterized in that, There is a gap between the heat shrink sleeve fixing groove (64) and the interior of the heating sleeve (5). The heat shrink sleeve set inside the heat shrink sleeve fixing groove (64) is supported by the heating sleeve (5). The heating sleeve (5) is electrically connected to an external power source.

9. The sweet potato seedling preparation device for a sweet potato seedling experimental field as described in claim 1, characterized in that, A heating sleeve working control assembly (7) is provided between the heat shrink tubing seat (4) and the base (1). The heating sleeve working control assembly (7) includes a limit spring (71) and a touch switch (72). The limit spring (71) is installed between the heat shrink tubing seat (4) and the base (1). The heat shrink tubing seat (4) is pushed by the limit spring (71). The touch switch (72) is sleeved inside the limit spring (71) and fixedly connected to the inner wall of the base (1). The touch switch (72) is electrically connected to the heating sleeve (5).

10. A method of using the sweet potato seedling pruning device for a sweet potato seedling experimental field as described in any one of claims 1-9, characterized in that, Includes the following steps, Step S1: Reset the two sets of sliding clamping parts (2) and leave a gap between the sliding clamping parts (2) and the heating sleeve (5); Step S2: Take the heat shrink bag fixing part (6) out of the heating sleeve (5), nest the end of the heat shrink sleeve into the heat shrink sleeve fixing groove (64), and then reinstall the heat shrink bag fixing part (6) with the heat shrink sleeve into the heating sleeve (5). In step S3, as the connecting sleeve (62) of the heat shrink bag fixing part (6) enters the heating sleeve (5), the connecting sleeve (62) contacts the inner wall of the heating sleeve (5) and tightens inward due to the restriction of the heating sleeve (5) during the continuous entry process. The tightened connecting sleeve (62) cooperates with the inner auxiliary sleeve (63) to clamp and fix the end of the heat shrink bag; Step S4: Place the sweet potato seedlings that need to be sorted into the sweet potato seedling tray (3) and the corresponding sliding clamping part (2), with the leaf tips of the sweet potato seedlings facing the sweet potato seedling tray (3), and the roots of the sweet potato seedlings placed in another set of sliding clamping parts (2). All the roots of the sweet potato seedlings are level, and a gap of 1-2 cm is left between the roots and the other set of sliding clamping parts (2). Step S5: Push the two sets of first grippers (23) in sequence. The first grippers (23) drive the first push rod (26) to work. The first push rod (26) continuously pushes the first grippers (23). The first grippers (23) drive the second grippers (24) to move in opposite directions through the gripper linkage part (25). The first grippers (23) cooperate with the second grippers (24) to clamp and limit the sweet potato seedlings, so that the sweet potato seedlings are kept in a bundle shape. Step S6: After the relative positions of the first gripper (23) and the second gripper body (241) are fixed, push the auxiliary gripper (242). The second push rod (243) starts under the drive of the auxiliary gripper (242) and further pushes the auxiliary gripper (242) to rotate relative to the second gripper body (241). The rotated second push rod (243) can further limit the sweet potato seedlings that are not restricted by the first gripper (23) and the second gripper body (241). The sweet potato seedlings are bundled under the clamping of the two sets of sliding clamping parts (2). Step S7: Push the bundled sweet potato seedlings. The two sets of sliding clamps (2) move laterally under the action of the sweet potato seedlings. During the lateral movement, the ends of the sweet potato seedlings enter the heat shrink bag fixing part (6). Release one set of sliding clamps (2) so that the sliding clamps (2) no longer limit the ends of the sweet potato seedlings. Continue to push the other set of sliding clamps (2) so that the sweet potato seedlings continue to enter the heat shrink bag under the action of the other set of sliding clamps (2). Step S8: During the continuous lateral movement of another set of sliding clamping parts (2), the first set of sliding clamping parts (2) is contacted and pushed by the first set of sliding clamping parts (2). When the first set of sliding clamping parts (2) contacts the heating sleeve (5), the heat shrink sleeve seat (4) is further driven to move laterally along the platform (1). In step S9, the heat shrink sleeve seat (4) compresses the limiting spring (71) during the lateral movement until it contacts the touch switch (72). After being pressed, the touch switch (72) controls the heating sleeve (5) to work. Under the heating of the heating sleeve (5), the heat shrink bag shrinks and wraps the sweet potato seedling. Step S10: Release the other set of sliding clamping parts (2), separate the heat shrink bag fixing part (6) from the heating sleeve (5), and remove the wrapped sweet potato seedlings along with the heat shrink bag fixing part (6). After replacing the heat shrink bag, reconnect the heat shrink bag fixing part (6) to the heating sleeve (5).

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