Rice pot seedling transplanter

Abstract

The invention discloses a rice pot seedling transplanter, which comprises a control system, a supporting mechanism, a pressure plate mechanism, a transplanting arm mechanism, a lateral box shifting mechanism and a longitudinal conveying mechanism, wherein the transplanting arm mechanism, the lateral box shifting mechanism and the longitudinal conveying mechanism all comprise a driving motor connected to the control system, and the control system realizes a coordinated cooperation scheme of the three driving motors, thereby realizing accurate conveying and transplanting of the pot seedlings.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural machinery, in particular to a rice pot seedling transplanter. Background Art

[0002] Rice seedling cultivation in pot trays has developed rapidly because of the advantages of no root adhesion problem between seedlings in pots and little damage to rice seedlings. The mechanized transplanting technology of rice seedlings in pots can not only improve the working efficiency but also promote the effective tillering of rice to increase production and income. Compared with the amount of seeds used in blanket seedling cultivation, it saves more than 65% of seeds and reduces the soil usage by about 70% compared with non-pot tray cultivation.

[0003] In recent years, under the market demand for rice transplanting machinery, my country has introduced and independently developed many related machines, and has also developed rapidly. Researchers have conducted a lot of research on the mechanical structure of rice transplanters, focusing more on the design and optimization of the transplanting rotary arm, and the structure of conveying seedlings has focused on improving the accuracy of conveying seedlings by optimizing the mechanical structure. There are few studies on the automatic control of rice pot seedling transplanting machinery. The difference between the mechanized transplanting of pot seedlings and blanket seedlings is mainly the different transplanting trajectories. The transplanting of pot seedlings requires higher accuracy of the conveying device. Therefore, how to use the automatic control technology of rice pot seedling transplanting machinery to achieve accurate conveying of pot seedlings is currently a widely studied topic. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a rice pot seedling transplanter, by which accurate and high-speed transplanting of rice pot seedlings can be achieved.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] A rice pot seedling transplanter comprises a control system, a support mechanism, a pressure plate mechanism, a transplanting arm mechanism, a lateral box shifting mechanism and a longitudinal conveying mechanism; the support mechanism can place a pot seedling tray, the pressure plate mechanism can press the pot seedling tray placed on the support mechanism, under the action of the control system, the lateral box shifting mechanism cooperates with the longitudinal conveying mechanism to move the pot seedling to a target position, and the transplanting arm mechanism can take the pot seedling out of the pot seedling tray and transplant it into the soil.

[0007] As a preferred embodiment, the support mechanism includes a seedling tray support plate, a connecting plate, a linear bearing, a cross support, a support rod, a general support and a support arm crossbeam; the support rods are vertically and symmetrically installed on both sides of the upper surface of the support arm crossbeam, and the general support is arranged between the two support rods and the support arm crossbeam and is fixedly connected to the support arm crossbeam and the two support rods;

[0008] The transverse support is connected between the support rods; the linear bearing is installed on the transverse support; the connecting plate connects the linear bearing and the pot seedling tray support plate; when the pot seedling tray support plate moves left and right under the action of the transverse box shifting mechanism, the linear bearing can also move left and right along the transverse support;

[0009] The pot seedling tray support plate is divided into multiple support areas by multiple rows of parallel partitions, each support area can hold the pot seedling tray, and a slot is provided at the lower front end of each support area on the pot seedling tray support plate, and the width of the slot matches the width of the pot seedling tray.

[0010] As a preferred embodiment, the upper portion of the seedling tray support plate of the pot body is an arc structure inclined backward, and the lower portion is an arc structure.

[0011] As a preferred embodiment, the pressure plate mechanism includes at least one row of pressure rod frames fixed on the front and rear end surfaces of the pot seedling tray support plate, horizontal bars placed on each row of pressure rod frames, and a plurality of pressure rods connected to two adjacent horizontal bars for pressing the pot seedling tray; the space between two adjacent pressure rod frames in each row of pressure rod frames corresponds to the support area.

[0012] As a preferred solution, each compression rod rack is provided with a plurality of parallel rod placement grooves, and the cross bars are placed in the rod placement grooves of the compression rod rack.

[0013] As a preferred solution, the transplanting arm mechanism includes a transplanting arm drive motor, a synchronous belt drive assembly I and a plurality of support arms; the transplanting arm drive motor is electrically connected to the control system, the transplanting arm drive motor is fixedly arranged on the right side above the support arm crossbeam, and each support arm is welded to the front side of the support arm crossbeam at equal intervals;

[0014] A seedling door is fixed on all the support arms, and a plurality of seedling door notches corresponding to the support areas are arranged at equal intervals on the seedling door;

[0015] A support shaft is provided through the front end of each support arm, and transplanting arms are provided at both ends of the support shaft, and the two transplanting arms are symmetrically distributed relative to the support arm, and the planting arms of all transplanting arms are placed above the corresponding seedling gate gaps; a transmission shaft is provided through the rear end of all support arms, and a chain transmission assembly is provided between the transmission shaft and the support shaft. The transplanting arm driving motor can drive the transmission shaft to rotate through the synchronous belt transmission assembly I, and then drive the transplanting arm to rotate through the chain transmission assembly. The transplanting arm can take the pot seedlings moved to the seedling gate gap out of the pot seedling tray and transplant them into the soil.

[0016] As a preferred embodiment, the lateral box shifting mechanism includes a box shifting drive motor, a gear transmission assembly I, a double helix shaft, a slider, a box shifting support and a support beam; the box shifting drive motor is electrically connected to the control system, and the box shifting drive motor is fixedly arranged in the middle above the support arm crossbeam; both ends of the double helix shaft are installed on the left side above the support arm crossbeam by L-shaped bearing seats, parallel to the support arm crossbeam; the support beam is fixedly arranged at the lower rear side of the pot seedling tray support plate, and is arranged parallel to the double helix shaft, the slider is installed on the double helix shaft, and the box shifting support is used to connect the support beam and the slider; the box shifting drive motor can drive the double helix shaft to rotate through the gear transmission assembly I, and when the double helix shaft rotates, the slider can move along its axial direction, thereby driving the pot seedling tray support plate to move left and right, so as to move the pot seedlings in the same row in each pot seedling tray to the corresponding seedling gate gap in turn.

[0017] As a preferred solution, the longitudinal conveying mechanism includes a conveying drive motor, a bevel gear transmission assembly, a gear transmission assembly II, a gear transmission shaft, a synchronous belt transmission assembly II, a conveyor belt driving shaft, a conveyor belt driven shaft and a double-sided synchronous belt conveying assembly;

[0018] The conveying drive motor is electrically connected to the control system, the conveying drive motor is mounted on a motor support plate, the motor support plate is fixedly connected to the right support rod, the gear transmission assembly II is fixedly mounted on the motor support plate through an L-shaped bracket, and the bevel gear transmission assembly is arranged between the drive motor and the gear transmission assembly II;

[0019] The gear transmission shaft is installed in the middle of the rear side of the bowl seedling tray support plate and is parallel to the double spiral shaft; multiple double-sided synchronous belt conveying assemblies are distributed in the corresponding grooves of the bowl seedling tray support plate, and the synchronous belt transmission assembly II located on the right side of the bowl seedling tray support plate is connected between the gear transmission shaft and the conveyor belt driving shaft; the conveyor belt driving shaft and the conveyor belt driven shaft are installed on the bowl seedling tray support plate, parallel to the double spiral shaft, and pass through all double-sided synchronous belt conveying assemblies; the conveying drive motor transmits power to the bevel gear transmission assembly, and the bevel gear transmission assembly transmits the power to the gear transmission assembly II, and the gear transmission assembly II can drive the gear transmission shaft to rotate, and the gear transmission shaft drives the conveyor belt driving shaft to rotate through the synchronous belt transmission assembly II, and the conveyor belt driving shaft can drive the double-sided synchronous belt conveying assembly to work, thereby driving the bowl seedling tray placed thereon to move longitudinally.

[0020] As a preferred embodiment, a long key is provided on the gear transmission shaft, and when the pot seedling tray support plate moves left and right, the gear transmission shaft can also move left and right relative to the gear transmission assembly II.

[0021] Beneficial effects:

[0022] As described above, the rice pot seedling transplanter of the present invention has the following beneficial effects:

[0023] 1) The transplanter in the present invention includes a control system, a support mechanism, a pressure plate mechanism, a transplanting arm mechanism, a lateral box-shifting mechanism and a longitudinal conveying mechanism, wherein the transplanting arm mechanism, the lateral box-shifting mechanism and the longitudinal conveying mechanism all contain a driving motor connected to the control system, and the control system realizes the coordinated cooperation of the three driving motors, which can realize the precise transportation and transplanting of the pot seedlings, and then accurately controls the transplanting speed of the transplanting arm (controlled by the transplanting arm driving motor), realizes the power speed change input, reduces the linear speed when the planting arm contacts the seedlings, reduces the damage to the seedlings, and realizes the precise lateral and longitudinal stepping transportation of the pot seedling tray. The speed of transportation and transplanting is coordinated to reduce the damage to the seedlings and realize low-loss and efficient transplanting. The transplanting and transportation can be adjusted in speed (by adjusting the speed of the corresponding motor), which can adapt to different pot seedling trays and transplanting speeds, and has a wider range of applications. At the same time, the control system can adjust the transplanting rate in real time according to the different walking speeds of the transplanter's ground wheels, and can achieve a better transplanting spacing.

[0024] 2) In the present invention, the longitudinal conveying adopts a double-sided synchronous belt conveying assembly. The pitch of the double-sided synchronous belt in the double-sided synchronous belt conveying assembly matches the size of the pot seedling tray, which can realize the step-by-step precise conveying of the pot seedling tray in the longitudinal direction. The upper surface of the pot seedling tray is pressed by a pressure rod, and the lower part of the pot seedling tray support plate is an arc structure, which is convenient for conveying to the rear end and upper end of the pot seedling tray support plate under the power of the double-sided synchronous belt conveying assembly after the pot seedling tray is transplanted, so as to facilitate recycling and repeated use. The upper part of the pot seedling tray support plate is an arc structure inclined backward, which is convenient for manual placement and recycling of the pot seedling tray.

[0025] 3) The conveying drive motor in the present invention can output rotational force to the conveyor belt driving shaft under the cooperation of the gear transmission assembly II and the long key when the pot seedling tray support plate moves horizontally. Compared with the previous intermittent transmission, it reduces vibration and runs more smoothly.

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is one of the rear views of the transplanter of the present invention;

[0028] Figure 2 It is one of the rear views of the transplanter of the present invention (excluding the pot seedling tray support plate 20);

[0029] Figure 3 It is one of the front views of the transplanter of the present invention;

[0030] Figure 4This is the second front view of the transplanter in the present invention (excluding the seedling tray support plate 20 and the support arm 32);

[0031] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0032] Figure 6 It is a right side view of the transplanter of the present invention;

[0033] Figure 7 is a partial view of the transplanter of the present invention;

[0034] Figure 8 is a bottom view of the transplanter of the present invention;

[0035] Fig. 9 It is a structural schematic diagram of the seedling tray support plate of the pot body in the present invention;

[0036] Fig.10 This is a schematic diagram of a rice seedling tray with 14 rows and 29 columns (the line with arrows is the transplanting route);

[0037] Fig.11 This is the flow chart for the precise transplanting control of rice seedlings in pots.

[0038] Markings: 1. Support arm crossbeam, 2. Support rod, 3. Synchronous belt drive assembly I, 4. Transplanting arm drive motor, 5. Motor support plate, 6. L-shaped bracket, 7. Gear transmission assembly I, 8. Transplanting box drive motor, 9. Support beam, 10. Double screw shaft, 11. Slider, 12. Transplanting box support, 13. L-shaped bearing seat, 14. Gear transmission shaft, 15. Main bracket, 16. Connecting plate, 17. Linear bearing, 18. Gear transmission assembly II, 19. Cross support, 20. Bowl Seedling tray support plate, 2001, partition, 2002, notch, 21, conveying drive motor, 22, synchronous belt transmission assembly II, 23, conveyor belt driving shaft, 24, conveyor belt driven shaft, 25, pressure rod frame, 26, horizontal bar, 27, pot seedling tray, 28, chain transmission assembly, 29, transmission shaft, 30, seedling door, 31, transplanting arm, 32, support arm, 33, double-sided synchronous belt conveying assembly, 34, bevel gear transmission assembly, 35, long key, 36, pressure rod, 37, support shaft. DETAILED DESCRIPTION

[0039] The present invention discloses a rice pot seedling transplanter, please refer to Figures 1 to 7The transplanter includes a control system (not shown in the figure), a supporting mechanism, a pressure plate mechanism, a transplanting arm mechanism, a lateral box shifting mechanism and a longitudinal conveying mechanism; the supporting mechanism can place a pot seedling tray, and the pressure plate mechanism can press the pot seedling tray placed on the supporting mechanism. Under the action of the control system, the lateral box shifting mechanism cooperates with the longitudinal conveying mechanism to move the pot seedlings to the target position, and the transplanting arm mechanism can take the pot seedlings out of the pot seedling tray and transplant them into the soil.

[0040] The specific structure of each mechanism is described in detail below with reference to the accompanying drawings.

[0041] 1. Support mechanism

[0042] Please refer to Figure 1 The supporting mechanism includes a seedling tray support plate 20, a connecting plate 16, a linear bearing 17, a cross support 19, a support rod 2, a main bracket 15 and a support arm crossbeam 1.

[0043] The support rods 2 are connected by bolts and are vertically and symmetrically installed on both sides of the upper surface of the support arm cross beam 1. The main bracket 15 is arranged between the two support rods 2 and the support arm cross beam 1 and is fixedly connected to the support arm cross beam 1 and the two support rods 2.

[0044] The transverse support 19 is connected between the two support rods 2; the linear bearing 17 is installed on the transverse support 19; the connecting plate 16 connects the linear bearing 17 and the pot seedling tray support plate 20; when the pot seedling tray support plate 20 moves left and right under the action of the transverse box shifting mechanism, the linear bearing 17 can also move left and right along the transverse support 19.

[0045] Please refer to Fig. 9 The seedling tray support plate 20 is divided into a plurality of support areas by a plurality of parallel partitions 2001, each support area can hold a seedling tray. A slot 2002 is provided at the lower front end of each support area on the seedling tray support plate 20, and the width of the slot 2002 matches the width of the seedling tray.

[0046] In detail, the lower part of the pot seedling tray support plate 20 is an arc structure, which is convenient for conveying the pot seedling tray to the rear end and upper end of the pot seedling tray support plate 20 under the power of the double-sided synchronous belt conveying assembly 33 after the pot seedling tray is transplanted, so as to facilitate recycling and repeated use. The upper part of the pot seedling tray support plate 20 is an arc structure inclined backward, which is convenient for manual placement and recycling of the pot seedling tray.

[0047] 2. Pressure plate mechanism

[0048] Please refer to Figure 2 , Figure 4 and Figure 5The pressing plate mechanism includes at least one row of pressing rod frames fixed on the front and rear end surfaces of the pot seedling tray support plate 20, horizontal bars 26 placed on each row of pressing rod frames, and a plurality of pressing rods 36 connected to two adjacent horizontal bars 26 for pressing the pot seedling tray; in detail, the pressing rod frames 25 are fixed on the edge of the pot seedling tray support plate 20 and the partition 2001, and the space between two adjacent pressing rod frames 25 in each row of pressing rod frames corresponds to the supporting area.

[0049] Please refer to Figure 5 Each pressure rod rack 25 is provided with a plurality of parallel rod placement grooves, and the cross bars 26 are placed in the rod placement grooves of the pressure rod rack 25. By moving the cross bars 26 to place them in different rod placement grooves, the degree of compression of the pot seedling tray can be adjusted or pot seedlings of different sizes can be adapted.

[0050] 3. Transplanting arm mechanism

[0051] Please refer to Figures 1 to 6 The transplanting arm mechanism includes a transplanting arm drive motor 4, a synchronous belt transmission assembly 1 3 and a plurality of support arms 32; the transplanting arm drive motor 4 is electrically connected to the control system, and the transplanting arm drive motor 4 is fixedly arranged on the right side above the support arm crossbeam 1, and each support arm 32 is welded to the front side of the support arm crossbeam 1 at equal intervals.

[0052] Please refer to Figure 5 A seedling door 30 is fixed on all the supporting arms 32, and a plurality of seedling door notches 3001 corresponding to the supporting area are arranged at equal intervals on the seedling door 30, and the pot seedlings on the pot seedling tray are removed from the seedling door notches.

[0053] Please refer to Figure 4 A support shaft 37 is provided through the front end of each support arm 32, and transplanting arms 31 are provided at both ends of the support shaft 37, and the two transplanting arms 31 are symmetrically distributed relative to the support arms 32, and the planting arms of all transplanting arms 31 are placed at the corresponding seedling door gaps 3001.

[0054] A transmission shaft 29 is provided through the rear end of all support arms 32, and a chain transmission assembly 28 is provided between the transmission shaft 29 and the support shaft 37. The transplanting arm driving motor 4 can drive the transmission shaft 29 to rotate through the synchronous belt transmission assembly I 3, and then drive the transplanting arm 31 to rotate through the chain transmission assembly 28. The transplanting arm 31 can take the pot seedlings moved to the seedling gate gap 3001 out of the pot seedling tray and transplant them into the soil.

[0055] It should be noted that the specific structure of the transplanting arm 31 in the present invention is a prior art, and as long as it can achieve taking out the pot seedlings from the pot seedling tray and transplanting the pot seedlings into the soil, the present invention will not repeat it. For example, the seedling taking mechanism in the patent with application number 202211316923.9 can be used.

[0056] 4. Horizontal box transfer mechanism

[0057] Please refer to Figure 1 and Figure 2 , the lateral box shifting mechanism includes a box shifting drive motor 8, a gear transmission assembly I 7, a double helical shaft 10, a slider 11, a box shifting support 12 and a support beam 9; the box shifting drive motor 8 is electrically connected to the control system, and the box shifting drive motor 8 is fixedly arranged in the middle above the support arm crossbeam 1; both ends of the double helical shaft 10 are installed on the left side above the support arm crossbeam 1 by L-shaped bearing seats 13, parallel to the support arm crossbeam 1; the support beam 9 is fixedly arranged at the rear lower side of the pot seedling tray support plate 20, and is arranged parallel to the double helical shaft 10, the slider 11 is installed on the double helical shaft 10, and the box shifting support 12 is used to connect the support beam 9 and the slider 11; the box shifting drive motor 8 can drive the double helical shaft 10 to rotate through the gear transmission assembly I 7, and when the double helical shaft 10 rotates, the slider 11 can move along its axial direction, thereby driving the pot seedling tray support plate 20 to move left and right, so as to move the pot seedlings in the same row in each pot seedling tray to the corresponding seedling door gap 3001 in sequence.

[0058] 5. Longitudinal conveying mechanism

[0059] Please refer to Figure 1 , Figure 2 , Figure 7 The longitudinal conveying mechanism includes a conveying drive motor 21, a bevel gear transmission assembly 34, a gear transmission assembly II 18, a gear transmission shaft 14, a synchronous belt transmission assembly II 22, a conveyor belt driving shaft 23, a conveyor belt driven shaft 24 and a double-sided synchronous belt conveying assembly 33.

[0060] The conveying drive motor 21 is electrically connected to the control system, and the conveying drive motor 21 is mounted on the motor support plate 5, and the motor support plate 5 is fixedly connected to the right support rod 2. The gear transmission assembly II 18 is fixedly mounted on the motor support plate 5 through the L-shaped bracket 6. The bevel gear transmission assembly 34 is arranged between the drive motor 21 and the gear transmission assembly II 18.

[0061] The gear transmission shaft 14 is installed in the middle of the rear side of the pot seedling tray support plate 20, parallel to the double spiral shaft 10. Multiple double-sided synchronous belt conveying components 33 are distributed in the corresponding notches of the pot seedling tray support plate 20, and the synchronous belt transmission component II 22 located on the right side of the pot seedling tray support plate 20 is connected between the gear transmission shaft 14 and the conveyor belt driving shaft 23; the conveyor belt driving shaft 23 and the conveyor belt driven shaft 24 are installed on the pot seedling tray support plate 20, parallel to the double spiral shaft 10, and pass through all double-sided synchronous belt conveying components 33; the conveying drive motor 21 transmits power to the bevel gear transmission component 34, and the bevel gear transmission component 34 transmits power to the gear transmission component II 18, and the gear transmission component II 18 can drive the gear transmission shaft 14 to rotate, and the gear transmission shaft 14 drives the conveying driving shaft 23 to rotate through the synchronous belt transmission component II 22, and the conveyor belt driving shaft 23 can drive the double-sided synchronous belt conveying component 33 to work, thereby driving the pot seedling tray placed thereon to move longitudinally.

[0062] After the pot seedlings in the i-th (i≥1)th row are transplanted into the soil, the pot seedling tray is moved by the longitudinal conveying mechanism to move the pot seedlings in the (i+1)th row to the vicinity of the seedling gate 30, and then the pot seedlings in the (i+1)th row are transplanted one by one by the transplanting arm 31.

[0063] It should be noted that the tooth pitch of the double-sided synchronous belt in the double-sided synchronous belt conveying assembly 33 matches the size of the pot seedling tray, which can achieve precise step-by-step conveyance of the pot seedling tray in the longitudinal direction.

[0064] Please refer to Figure 7 The gear transmission shaft 14 is provided with a long key 35. When the pot seedling tray support plate 20 moves left and right, the gear transmission shaft 14 can also move left and right relative to the gear transmission assembly II 18.

[0065] Please refer to Fig.11 The specific working process of the transplanter in the present invention is as follows: first, the plant spacing is selected through the human-machine interaction interface in the control system, and the walking speed of the machine is obtained through the ground wheel speed measuring unit in the control system. The current transplanting speed can be calculated based on these two parameters; and the transplanting speed V′ at the previous moment 移 In comparison, look at the current transplanting speed V 移 Whether the speed difference threshold α(|V 移 -V′ 移|≥α), if it exceeds, adjust the speed of the transplanting arm drive motor 4, the box-shifting drive motor 8 and the conveying drive motor 21, if not, maintain the original speed. First determine whether there are seedlings at the transplanting position (the gap 3001 of the seedling gate), if there are no seedlings, the conveying drive motor 21 will start to operate, if there are seedlings, the transplanting arm drive motor 4 will start to transplant the first seedling, wait for the first seedling to be transplanted, the box-shifting drive motor 8 will step and transport a step distance, counted by the encoder, and step j times horizontally (the relationship between the number of steps j of the box-shifting drive motor 8 and the number of transplanted pot seedlings a is j=a-1), wait for the a=nb seedlings (n is a multiple, b is the number of columns of the pot seedling tray, and the last column of each row is pot seedlings) to be taken, the box-shifting drive motor 8 and the conveying drive motor 21 will step and transport a step distance at the same time, and so on to transplant the next row of seedlings. In detail, with Fig.10 Taking the 14-row and 29-row seedling tray shown in the figure as an example, the transplanting path is shown by the arrowed line in the figure.

[0066] The above is a detailed introduction to a rice seedling pot transplanter provided by the present invention. This article uses specific examples to illustrate the principles and specific implementation methods of the present invention. The above embodiments are only used to help understand the methods and core ideas of the present invention. It should be pointed out that for ordinary technicians in this field, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A rice pot seedling transplanter, characterized in that: It includes a control system, a support mechanism, a pressure plate mechanism, a transplanting arm mechanism, a lateral box-shifting mechanism and a longitudinal conveying mechanism; the support mechanism can place a pot seedling tray, the pressure plate mechanism can press the pot seedling tray placed on the support mechanism, under the action of the control system, the lateral box-shifting mechanism cooperates with the longitudinal conveying mechanism to move the pot seedling to a target position, and the transplanting arm mechanism can take the pot seedling out of the pot seedling tray and transplant it into the soil; The support mechanism comprises a seedling tray support plate (20), a connecting plate (16), a linear bearing (17), a transverse support (19), a support rod (2), a main support (15) and a support arm crossbeam (1); the support rod (2) is vertically and symmetrically mounted on both sides of the upper surface of the support arm crossbeam (1); the main support (15) is arranged between the two support rods (2) and the support arm crossbeam (1) and is fixedly connected to the support arm crossbeam (1) and the two support rods (2); the transverse support (19) is connected between the two support rods (2); the linear bearing (17) is mounted on the transverse support (19); The connecting plate (16) is connected to the linear bearing (17) and the seedling tray support plate (20); when the seedling tray support plate (20) moves left and right under the action of the lateral box shifting mechanism, the linear bearing (17) can also move left and right along the lateral support (19); the seedling tray support plate (20) is divided into a plurality of support areas by a plurality of parallel partitions (2001), each of which can hold a seedling tray; a notch (2002) is provided at the lower front end of each support area on the seedling tray support plate (20), and the width of the notch (2002) matches the width of the seedling tray; The pressing plate mechanism comprises at least one row of pressing rod frames fixed to the front and rear end surfaces of the seedling tray support plate (20), a horizontal bar (26) placed on each row of the pressing rod frames, and a plurality of pressing rods (36) connected to two adjacent horizontal bars (26) for pressing the seedling tray; the space between two adjacent pressing rod frames (25) in each row of the pressing rod frames corresponds to the support area; The transplanting arm mechanism comprises a transplanting arm drive motor (4), a synchronous belt transmission assembly (1) and a transmission assembly (2). (3) and a plurality of support arms (32); the transplanting arm drive motor (4) is electrically connected to the control system, the transplanting arm drive motor (4) is fixedly arranged on the right side above the support arm cross beam (1), and each support arm (32) is welded to the front side of the support arm cross beam (1) at equal intervals; a seedling door (30) is fixed on all the support arms (32), and a plurality of seedling door notches (3001) corresponding to the support area are arranged on the seedling door (30) at equal intervals; a support shaft (37) is passed through the front end of each support arm (32), and transplanting arms (31) are respectively provided at both ends of the support shaft (37), and the two transplanting arms (31) are symmetrically distributed relative to the support arm (32), and the planting arms of all the transplanting arms (31) are placed above the corresponding seedling door notches (3001); a transmission shaft (29) is passed through the rear end of all the support arms (32), and a chain transmission component (28) is provided between the transmission shaft (29) and the support shaft (37), and the transplanting arm drive motor (4) is driven by a synchronous belt transmission component I (3) can drive the transmission shaft (29) to rotate, and then drive the transplanting arm (31) to rotate through the chain transmission assembly (28), and the transplanting arm (31) can take the pot seedlings moved to the seedling gate gap (3001) out of the pot seedling tray and transplant them into the soil; The lateral box-shifting mechanism comprises a box-shifting drive motor (8), a gear transmission assembly I (7), a double helical shaft (10), a slider (11), a box-shifting support (12) and a support beam (9); the box-shifting drive motor (8) is electrically connected to a control system, and the box-shifting drive motor (8) is fixedly arranged in the middle above the support arm crossbeam (1); both ends of the double helical shaft (10) are mounted on the left side above the support arm crossbeam (1) by L-shaped bearing seats (13), and are parallel to the support arm crossbeam (1); the support beam (9) is fixedly arranged at the rear lower side of the seedling tray support plate (20) of the pot body, and is arranged parallel to the double helical shaft (10); the slider (11) is mounted on the double helical shaft (10), and the box-shifting support (12) is used to connect the support beam (9) and the slider (11); the box-shifting drive motor (8) is connected to the support beam (9) and the slider (11) through the gear transmission assembly I (7) capable of driving the double helical shaft (10) to rotate. When the double helical shaft (10) rotates, the slider (11) can move along its axial direction, thereby driving the seedling tray support plate (20) to move left and right, so as to move the seedlings in the same row in each seedling tray to the corresponding seedling door notch (3001) in sequence; The longitudinal conveying mechanism comprises a conveying drive motor (21), a bevel gear transmission assembly (34), a gear transmission assembly II (18), a gear transmission shaft (14), a synchronous belt transmission assembly II (22), a conveyor belt driving shaft (23), a conveyor belt driven shaft (24) and a double-sided synchronous belt conveying assembly (33); the conveying drive motor (21) is electrically connected to a control system, the conveying drive motor (21) is mounted on a motor support plate (5), the motor support plate (5) is fixedly connected to a right support rod (2), the gear transmission assembly II (18) is fixedly mounted on the motor support plate (5) via an L-shaped bracket (6), and the bevel gear transmission assembly (34) is arranged between the drive motor (21) and the gear transmission assembly II (18); the gear transmission shaft (14) is installed in the middle of the rear side of the seedling tray support plate (20) and is parallel to the double spiral shaft (10); a plurality of double-sided synchronous belt conveying components (33) are distributed in corresponding grooves of the seedling tray support plate (20), and the synchronous belt transmission component II (22) located on the right side of the seedling tray support plate (20) is connected between the gear transmission shaft (14) and the conveyor belt driving shaft (23); the conveyor belt driving shaft (23) and the conveyor belt driven shaft (24) are installed on the seedling tray support plate (20) and are parallel to the double spiral shaft (10) and pass through all the double-sided synchronous belt conveying components (33); the conveying drive motor (21) transmits power to the bevel gear transmission component (34), and the bevel gear transmission component (34) transmits power to the gear transmission component II (18), and the gear transmission component II (18) can drive the gear transmission shaft (14) to rotate, and the gear transmission shaft (14) is driven by the synchronous belt transmission component II (22) drives the conveyor belt driving shaft (23) to rotate, and the conveyor belt driving shaft (23) can drive the double-sided synchronous belt conveying component (33) to work, thereby driving the pot seedling tray placed thereon to move longitudinally; The plant spacing is selected through the human-machine interaction interface in the control system, and the walking speed of the machine is obtained through the ground wheel speed measuring unit in the control system. The current transplanting speed is calculated based on these two parameters; compared with the transplanting speed at the previous moment In comparison, the current transplanting speed Whether it exceeds the speed difference threshold α, if it exceeds the speed difference threshold, that is , the rotation speeds of the transplanting arm drive motor (4), the box transfer drive motor (8) and the conveying drive motor (21) are adjusted; if not, the original rotation speed is maintained; it is determined whether there are seedlings at the gap (3001) of the seedling gate; if not, the conveying drive motor (21) is operated; if there are seedlings, the transplanting arm drive motor (4) is operated to start transplanting the first seedling; after the first seedling is transplanted, the box transfer drive motor (8) is stepped and transported by a stepping distance counted by the encoder, and steps j times horizontally; the relationship between the number of steps j of the box transfer drive motor (8) and the number of transplanted pot seedlings a is j=a-1; after the a=nbth seedling, i.e., the last column of pot seedlings in each row, is taken, n is a multiple, b is the number of columns of the pot seedling tray, the box transfer drive motor (8) and the conveying drive motor (21) are simultaneously stepped and transported by a stepping distance, and the next row of seedlings is transplanted by analogy.

2. A rice pot seedling transplanter according to claim 1, characterized in that: The upper portion of the pot seedling tray support plate (20) is in an arc structure inclined backwards, and the lower portion is in an arc structure.

3. The rice pot seedling transplanter according to claim 1, characterized in that: Each pressure rod frame (25) is provided with a plurality of parallel rod placement grooves, and the horizontal bars (26) are placed in the rod placement grooves of the pressure rod frame (25).

4. The rice pot seedling transplanter according to claim 1, characterized in that: The gear transmission shaft (14) is provided with a long key (35), and when the seedling tray support plate (20) moves left and right, the gear transmission shaft (14) can also move left and right relative to the gear transmission assembly II (18).

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