Onion automated planting equipment

Abstract

The present invention relates to the technical field of agricultural planting, and in particular to an automated onion planting device. The device comprises a frame, a driving wheel, and a control box. The driving wheel is symmetrically rotatably provided on the frame, the control box is mounted on the frame, a hole-making mechanism and a bulldozer are provided on the frame, the hole-making mechanism is used to make holes in the soil, and the bulldozer is used to cover the roots of the onion seedlings with soil, and a first electric slide is provided on the frame. The present invention, by providing a structure combining a splint, a fixing plate, a spring, and a first distance sensor, can detect the diameter of the onion seedling stem in real time during the seedling removal process, and automatically determine whether it is qualified according to a preset standard, effectively eliminating unqualified seedlings that are too large or too small, and only planting high-quality seedlings that meet the requirements, thereby avoiding problems such as bolting, flowering, and seedling death caused by inconsistent plant growth, thereby improving the survival rate and final yield, and also providing a basis for unified field management, reducing the difficulty of managing water, fertilizer, pests, and other diseases in the later stage.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, and in particular to an automatic onion planting device. Background Art

[0002] With the acceleration of agricultural modernization, onion cultivation has gradually developed from traditional manual operation to mechanization and automation. As one of the important vegetables widely grown in the world, onion has a large market demand and puts higher requirements on large-scale production. However, in the current onion cultivation process, although some automated planting equipment has been put into use, there are still technical bottlenecks in key links, especially in the adaptability of seedling screening and planting.

[0003] Currently, the automated onion planting equipment on the market mainly relies on transplanting machinery to remove onion seedlings from seedling trays one by one and plant them in the soil. The working principle of this equipment is generally to use a robotic arm or air suction device to extract the seedlings from the seedling trays one by one and plant them according to the set spacing and depth. This method reduces labor costs to a certain extent, but it still has obvious limitations. The existing equipment cannot automatically identify and screen the onion seedlings according to their stem diameter when removing seedlings, resulting in all seedlings being treated uniformly regardless of size. If the onion seedlings are too large (for example, the stem diameter exceeds the standard value), they are often in the reproductive growth stage and are prone to premature bolting and flowering after planting. This will consume a large amount of plant nutrients, affect the expansion of the underground bulb, and thus reduce yield and quality. If the onion seedlings are too small (for example, the stem diameter is lower than the standard value), due to their immature physiological functions, weak vitality, and poor stress resistance, they are very likely to die after planting, resulting in missing seedlings and broken ridges, which directly affects the yield per unit area. Moreover, due to the uneven growth status of the planted seedlings in the field, it brings many inconveniences to water and fertilizer management, pest and disease control, and harvesting operations, increasing management costs and manpower investment. Summary of the Invention

[0004] In view of this, the present invention provides an automated onion planting device, which can solve the shortcomings of existing automated onion planting equipment that is unable to automatically identify and screen onion seedlings according to the stem thickness when taking seedlings, resulting in all seedlings being processed uniformly regardless of size, and the subsequent management costs and manpower investment are increased due to the uneven quality of the planted seedlings.

[0005] The technical implementation scheme of the present invention is: an automated onion planting device, including a frame, a driving wheel and a control box, the frame is symmetrically provided with a driving wheel, the frame is installed with a control box, the frame is provided with a hole-opening mechanism and a bulldozer mechanism, the hole-opening mechanism is used to open holes in the soil, and the bulldozer mechanism is used to cover the roots of the onion seedlings with soil, the frame is provided with a first electric slide, the frame is provided with an adjustment mechanism, the adjustment mechanism is connected to a first linear drive, the adjustment mechanism is used to adjust the height and direction of the first linear drive, the first linear drive is provided with a positioning mechanism, the positioning mechanism is used to To detect the displacement of the telescopic rod of the first linear drive, the telescopic rod of the first linear drive is connected to a guide rail frame, the guide rail frame is connected to a fixed plate, a splint is slidably arranged on the guide rail frame, a spring is connected between the fixed plate and the splint, a first distance sensor is installed on the fixed plate, the first distance sensor is used to detect the distance between the fixed plate and the splint, the guide rail frame is provided with a contact sensor for contacting the onion seedlings, the guide rail frame is provided with a second linear drive for supporting the splint, the frame is provided with a feeding pipe and a receiving hopper, and the frame is provided with a collection mechanism for collecting onion seedlings with unqualified stem thickness.

[0006] In a preferred embodiment of the present invention, the hole-opening mechanism includes a lifting frame, a first electric push rod, a hollow tube and a hollow cone. The lifting frame is slidably arranged on the frame, the first electric push rod is installed on the lifting frame, the telescopic rod of the first electric push rod is connected to the hollow tube, the bottom of the hollow tube is connected to the hollow cone, and the hollow cone is used to open a hole in the soil.

[0007] In a preferred embodiment of the present invention, the bulldozer mechanism includes a second electric push rod, a connecting rod and a bulldozer disc. The second electric push rod is installed on the frame, the telescopic rod of the second electric push rod is connected to the lifting frame, the connecting rod is symmetrically arranged at the bottom of the lifting frame, and the bulldozer disc is rotatably arranged on the connecting rod.

[0008] In a preferred embodiment of the present invention, the adjustment mechanism includes a third electric push rod, a movable frame and a motor, the third electric push rod is installed on the frame, the telescopic rod of the third electric push rod is connected to the movable frame, the movable frame is installed on the motor, and the first linear drive is connected to the output shaft of the motor.

[0009] In a preferred embodiment of the present invention, the positioning mechanism includes a positioning plate and a second distance sensor. The positioning plate is connected to the telescopic rod of the first linear drive. The first linear drive is provided with a second distance sensor, and the second distance sensor is used to detect the distance between the positioning plate and the telescopic rod.

[0010] In a preferred embodiment of the present invention, the collecting mechanism includes a second electric slide and a collecting frame. The second electric slide is symmetrically arranged on the frame. The collecting frame is provided on the slide of the second electric slide. The collecting frame is used to collect onion seedlings with unqualified stem thickness.

[0011] In a preferred embodiment of the present invention, a loosening mechanism is further included, which includes an air pump, an air pipe and a shielding cover. The air pump is installed on the frame, and the air outlet of the air pump is connected to the hollow tube through the air pipe. Through holes are spaced apart on the hollow cone, and a shielding cover is installed on the hollow tube.

[0012] In a preferred embodiment of the present invention, a limiting mechanism is further included, which includes an electric slide rail and a pressure plate. The electric slide rail is installed on the frame, and the slider of the electric slide rail is connected to the pressure plate. The pressure plate is used to press the onion seedlings in the seedling tray to limit the position.

[0013] The beneficial effects of the present invention are: 1. The present invention, by providing a structure combining a splint, a fixing plate, a spring and a first distance sensor, can detect the thickness of the onion seedling stems in real time during the seedling picking process, and automatically judge whether they are qualified according to preset standards, effectively eliminating unqualified seedlings that are too large or too small, and only planting high-quality seedlings that meet the requirements, avoiding problems such as bolting, flowering, and seedling death caused by inconsistent plant growth, thereby improving the survival rate and final yield, and also providing a basis for unified field management, reducing the difficulty of management of water, fertilizer, diseases and pests in the later stage.

[0014] 2. For the unqualified seedlings (such as those with stems that are too large or too small) screened out by the present invention, the equipment can place them into different collection frames through a rotating mechanism to achieve classified recycling. This grading treatment method is conducive to the subsequent reuse or centralized treatment of unqualified seedlings.

[0015] 3. The present invention is equipped with a loosening mechanism consisting of a hollow cone, a hollow tube, an air pump and a shielding cover. After the hole is opened, the soil in the hole can be loosened by air, which improves the planting microenvironment and helps the roots of the onion seedlings to take root and grow quickly. At the same time, the design of the shielding cover effectively prevents soil from splashing during the loosening process, protecting the planted seedlings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure of the lifting frame, the first electric push rod and the second electric push rod of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the hollow tube, connecting rod and bulldozer disc of the present invention.

[0019] Figure 4 It is a schematic diagram of the three-dimensional structure of the first electric slide and the first linear drive of the present invention.

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism and the positioning mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the three-dimensional structure of the fixing plate, the clamping plate and the spring of the present invention.

[0022] Figure 7 This is a structural separation diagram of the guide rail frame, fixing plate and clamping plate of the present invention.

[0023] Figure 8 It is a schematic diagram of the three-dimensional structure of the collecting mechanism of the present invention.

[0024] Figure 9 It is a schematic diagram of the three-dimensional structure of the loosening mechanism of the present invention.

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the hollow cone, through hole and shielding cover of the present invention.

[0026] Figure 11 It is a schematic diagram of the three-dimensional structure of the limiting mechanism of the present invention.

[0027] 1. Frame; 2. Driving wheel; 3. Control box; 401. Lifting frame; 402. First electric push rod; 403. Hollow tube; 404. Hollow cone; 501. Second electric push rod; 502. Connecting rod; 503. Bulldozer disk; 6. First electric slide; 701. Third electric push rod; 702. Movable frame; 703. Motor; 8. First linear drive; 901. Positioning plate; 902. Second distance sensor; 10. Guide rail frame; 11. Fixed plate; 12. Clamp; 13. Spring; 14. First distance sensor; 15. Contact sensor; 16. Second linear drive; 17. Feeding pipe; 18. Feeding hopper; 1901. Second electric slide; 1902. Collection frame; 20. Air pump; 21. Air pipe; 22. Through hole; 23. Shielding cover; 24. Electric slide; 25. Pressing plate. DETAILED DESCRIPTION

[0028] Example: An automated onion planting device, see Figures 1-8 As shown, it includes a frame 1, drive wheels 2 and a control box 3; four drive wheels 2 are arranged on the frame 1 to rotate symmetrically front and back; the control box 3 is installed on the left side of the frame 1, and the drive wheels 2 are electrically connected to the control box 3;

[0029] It also includes an opening mechanism, a bulldozer mechanism, a first electric slide 6, an adjustment mechanism, a first linear drive 8, a positioning mechanism, a guide rail frame 10, a fixing plate 11, a clamping plate 12, a spring 13, a first distance sensor 14, a contact sensor 15, a second linear drive 16, a feeding pipe 17, a receiving hopper 18 and a collecting mechanism; the frame 1 is provided with an opening mechanism and a bulldozer mechanism, the opening mechanism is used to open holes in the soil, and the bulldozer mechanism is used to cover the soil on the roots of the onion seedlings; the first electric slide 6 is provided on the left side of the top of the frame 1, and the slide of the first electric slide 6 is used Place the seedling tray, an L-shaped bar is provided at the top corner of the slide of the first electric slide 6, the L-shaped bar is used to limit the seedling tray, and the first electric slide 6 is electrically connected to the control box 3; an adjusting mechanism is provided on the frame 1, and the adjusting mechanism is connected to the first linear drive 8, and the adjusting mechanism is used to adjust the height and direction of the first linear drive 8, and the first linear drive 8 is electrically connected to the control box 3; a positioning mechanism is provided on the first linear drive 8, and the positioning mechanism is used to detect the displacement of the telescopic rod of the first linear drive 8; the telescopic rod of the first linear drive 8 is connected to the guide rail frame 10; A fixing plate 11 is connected to the front of the upper side of the guide rail frame 10; a clamping plate 12 is slidably provided on the rear upper side of the guide rail frame 10; two springs 13 are connected between the fixing plate 11 and the clamping plate 12, and the clamping plate 12 is used to press the stem of the onion seedling on the fixing plate 11 for fixing by the elastic force of the spring 13; a first distance sensor 14 is installed on the right upper side of the fixing plate 11, and the first distance sensor 14 is used to detect the distance between the fixing plate 11 and the clamping plate 12, and the first distance sensor 14 is electrically connected to the control box 3; a contact sensor 15 for contacting the onion seedling is provided on the guide rail frame 10, and the contact The touch sensor 15 is electrically connected to the control box 3; a second linear drive 16 is provided on the upper right part of the front side of the guide frame 10, and the telescopic rod of the second linear drive 16 slides through the fixed plate 11 and abuts against the clamping plate 12, and the second linear drive 16 is electrically connected to the control box 3; a discharge pipe 17 is provided in the middle of the upper side of the frame 1, and the discharge pipe 17 is used to discharge onion seedlings with qualified stem thickness; receiving hoppers 18 are provided on the front and rear sides of the upper right side of the frame 1, and the receiving hopper 18 is used to drop onion seedlings with unqualified stem thickness; a collection mechanism for collecting onion seedlings with unqualified stem thickness is provided on the frame 1.

[0030] See Figure 2 and Figure 3As shown, the hole-opening mechanism includes a lifting frame 401, a first electric push rod 402, a hollow tube 403 and a hollow cone 404; the lifting frame 401 is slidably arranged on the lower side of the frame 1; the first electric push rod 402 is installed on the left side of the lower side of the lifting frame 401, and the first electric push rod 402 is electrically connected to the control box 3; the telescopic rod of the first electric push rod 402 is connected to the hollow tube 403, and the inner side of the hollow tube 403 is a hollow structure; the bottom of the hollow tube 403 is connected to the hollow cone 404, and the inner side of the hollow cone 404 is a hollow structure, and the hollow cone 404 is connected to the hollow tube 403, and the hollow cone 404 is connected to the hollow tube 403, and the hollow cone 404 is used to open a hole in the soil.

[0031] See Figure 2 and Figure 3 As shown, the bulldozer mechanism includes a second electric push rod 501, a connecting rod 502 and a bulldozer disc 503; the second electric push rods 501 are installed on both the left and right sides of the lower part of the frame 1, the telescopic rods of the two second electric push rods 501 are connected to the lifting frame 401, and the second electric push rods 501 are electrically connected to the control box 3; the connecting rods 502 are symmetrically arranged on the front and back of the right side of the bottom of the lifting frame 401; the bulldozer disc 503 is rotatably arranged on the connecting rod 502.

[0032] See Figure 4 and Figure 5 As shown, the adjustment mechanism includes a third electric push rod 701, a movable frame 702 and a motor 703; two third electric push rods 701 are installed on the right side of the top of the frame 1, and the two third electric push rods 701 are distributed on the left and right, and the third electric push rods 701 are electrically connected to the control box 3; a movable frame 702 is connected between the telescopic rods of the two third electric push rods 701; a motor 703 is installed on the movable frame 702, and the first linear drive 8 is connected to the output shaft of the motor 703, and the motor 703 is electrically connected to the control box 3.

[0033] See Figure 5 As shown, the positioning mechanism includes a positioning plate 901 and a second distance sensor 902; the positioning plate 901 is connected to the telescopic rod of the first linear drive 8; a second distance sensor 902 is arranged on the left side of the top of the first linear drive 8, and the second distance sensor 902 is used to detect the distance between the positioning plate 901, and the second distance sensor 902 is electrically connected to the control box 3.

[0034] See Figure 8 As shown, the collecting mechanism includes a second electric slide 1901 and a collecting frame 1902; the second electric slide 1901 is symmetrically arranged on the front and back of the lower right part of the frame 1; the collecting frame 1902 is placed on the slide of the second electric slide 1901, and the two collecting frames 1902 are respectively located below the two receiving hoppers 18, and the collecting frames 1902 are used to collect onion seedlings with unqualified stem thickness.

[0035] In the initial state, the spring 13 is in a stretched state because the telescopic rod of the second linear actuator 16 abuts against the clamping plate 12;

[0036] When in use, first control the slide of the first electric slide 6 to move backward through the control box 3, then place the seedling tray on the top of the slide of the first electric slide 6, so that the onion seedlings in the front row on the seedling tray are aligned with the contact sensor 15, and then control the driving wheel 2 to rotate through the control box 3, so that the driving wheel 2 drives the planting device to move until the hollow cone 404 on the planting device is aligned with the position where planting is required, and then control the first electric push rod 402 through the control box 3 to drive the hollow tube 403 and the hollow cone 404 to move downward, so that the hollow cone 404 is inserted into the soil, thereby making a hole in the soil, and waiting for the hollow cone 404 to complete the hole in the soil. After that, the control box 3 controls the first electric push rod 402 to drive the hollow tube 403 and the hollow cone 404 to move upward and reset, and then the control box 3 controls the driving wheel 2 to rotate again, so that the driving wheel 2 drives the planting device to move again until the feeding tube 17 on the planting device is aligned with the hole in the soil, and then the control box 3 controls the first linear drive 8 to drive the positioning plate 901, the guide rail frame 10 and the contact sensor 15 to move to the left, and at the same time the control box 3 controls the second distance sensor 902 to detect the distance between it and the positioning plate 901, and then there are two situations: if the contact sensor 15 is in contact with the onion seedlings on the seedling tray, and the second If the distance between the distance sensor 902 and the positioning plate 901 does not reach the preset value, it means that there are onion seedlings placed at the position aligned with the contact sensor 15 on the seedling tray. Then the contact sensor 15 will send a signal. After receiving the signal, the control box 3 will control the first linear drive 8 to drive the positioning plate 901, the guide rail frame 10 and the contact sensor 15 to stop moving. At the same time, the control box 3 will control the second distance sensor 902 to stop detecting the distance between it and the positioning plate 901. If the distance between the second distance sensor 902 and the positioning plate 901 reaches the preset value, and the contact sensor 15 is not in contact with the onion seedlings on the seedling tray, it means that the seedlings are not in contact with the onion seedlings on the seedling tray. When there is no onion seedling placed at the position on the tray aligned with the contact sensor 15, the second distance sensor 902 will then send a signal. After receiving the signal, the control box 3 will control the first linear actuator 8 to drive the positioning plate 901, the guide rail frame 10 and the contact sensor 15 to move rightward and reset. Then the control box 3 will control the first electric slide 6 to drive the seedling tray to move forward until the next row of onion seedlings on the seedling tray is aligned with the contact sensor 15. Then the control box 3 will control the first linear actuator 8 to drive the positioning plate 901, the guide rail frame 10 and the contact sensor 15 to move leftward again. Repeat the above operation until the contact sensor 15 contacts the onion seedlings on the seedling tray.Then the control box 3 controls the telescopic rod of the second linear drive 16 to shorten, so that the telescopic rod of the second linear drive 16 loosens the clamping plate 12. At this time, under the elastic force of the spring 13, the spring 13 drives the clamping plate 12 to move forward until the clamping plate 12 presses the stem of the onion seedling against the fixed plate 11. Then the control box 3 controls the first distance sensor 14 to detect the distance between the clamping plate 12 and the first distance sensor 14: if the first distance sensor 14 detects that the distance between the clamping plate 12 is equal to the preset value, it means that the stem thickness of the onion seedling is qualified; if the first distance sensor 14 detects that the distance between the clamping plate 12 is less than or greater than the preset value, it means that the stem thickness of the onion seedling is unqualified, and if the distance is less than the preset value, it means that the stem thickness of the onion seedling is too small, and if the distance is greater than the preset value, it means that the stem thickness of the onion seedling is too large.

[0037] After that, the first distance sensor 14 will send a signal to the control box 3. After receiving the signal, the control box 3 will control the first distance sensor 14 to stop detecting. At the same time, the control box 3 will control the telescopic rod of the third electric push rod 701 to shorten, so that the telescopic rod of the third electric push rod 701 drives the movable frame 702, the motor 703, the first linear drive 8, the guide frame 10, the fixed plate 11 and the clamping plate 12 to move upward, so that the fixed plate 11 and the clamping plate 12 clamp the onion seedlings out of the seedling tray, and then the control box 3 will control the first linear drive 8 to drive the positioning plate 901, the guide frame 10 and the contact sensor 15 to move to the right and reset, so that the fixed plate 11 and the clamping plate 12 on the guide frame 10 clamp the onion seedlings just above the discharge pipe 17, and then the control box 3 will control the third electric push rod 701 to shorten, so that the telescopic rod of the third electric push rod 701 drives the movable frame 702, the motor 703, the first linear drive 8, the guide frame 10, the fixed plate 11 and the clamping plate 12 to move upward, so that the fixed plate 11 and the clamping plate 12 clamp the onion seedlings The telescopic rod of the push rod 701 is extended, so that the telescopic rod of the third electric push rod 701 drives the movable frame 702, the motor 703, the first linear drive 8, the guide rail frame 10, the fixed plate 11 and the clamping plate 12 to move downward and reset. Then the control box 3 will judge according to the signal sent by the first distance sensor 14: if the first distance sensor 14 detects that the distance between it and the clamping plate 12 is equal to the preset value, the control box 3 will control the telescopic rod of the second linear drive 16 to extend, so that the telescopic rod of the second linear drive 16 pushes the clamping plate 12 to move backward and reset, and the spring 13 is stretched, so that the clamping plate 12 releases the qualified onion seedlings, so that the qualified onion seedlings fall downward into the discharge pipe 17 under gravity, and the qualified onion seedlings fall into the hole in the soil along the discharge pipe 17;If the first distance sensor 14 detects that the distance between it and the clamping plate 12 is less than or greater than a preset value, the control box 3 will control the motor 703 to drive the first linear drive 8 to rotate or reverse, so that the first linear drive 8 drives the guide rail frame 10, the fixed plate 11 and the clamping plate 12 to rotate or reverse, so that the fixed plate 11 and the clamping plate 12 clamp the unqualified onion seedlings directly above the rear or front receiving hopper 18, and then the control box 3 will control the telescopic rod of the second linear drive 16 to extend, so that the telescopic rod of the second linear drive 16 pushes the clamping plate 12 to move and reset, and the spring 13 is stretched, so that the clamping plate 12 releases the unqualified onion seedlings, so that the unqualified onion seedlings fall down into the receiving hopper 18 under gravity, so that the unqualified onion seedlings fall into the collecting hopper 18 along the receiving hopper 18. 1902, and the unqualified onion seedlings with too small stems are loaded into the collection box 1902 on the rear side, and the unqualified onion seedlings with too large stems are loaded into the collection box 1902 on the front side. After that, the control box 3 will control the first linear drive 8 to drive the positioning plate 901, the guide rail frame 10 and the contact sensor 15 to move left again, so as to repeat the above operation of taking the onion seedlings out of the seedling tray until the qualified onion seedlings fall into the holes in the soil along the discharge pipe 17. During this period, when an appropriate amount of unqualified onion seedlings are loaded into the receiving position in the collection box 1902, the control box 3 can drive the second electric slide 1901 to drive the collection box 1902 to move left or right appropriately to ensure that the unqualified onion seedlings can be evenly loaded into the collection box 1902, so that the collection box 1902 can be loaded with more unqualified onion seedlings;

[0038] After the qualified onion seedlings are planted in the holes in the soil along the feeding pipe 17, the control box 3 controls the second electric push rod 501 to drive the lifting frame 401, the connecting rod 502 and the bulldozer 503 to move downward until the bulldozer 503 contacts the soil. Then the control box 3 controls the driving wheel 2 to rotate again, so that the driving wheel 2 drives the planting device to move until the hollow cone 404 on the planting device is aligned with the position where the next planting is required. During this period, when the planting device moves, the bulldozer 503 on the planting device will drive the soil to move to cover the area where the last planting was made. After all the onion seedlings are planted, the seedling tray is taken out from the slide of the first electric slide 6, and then the control box 3 controls the second electric push rod 501 to drive the lifting frame 401, the connecting rod 502 and the bulldozer 503 to move upward and reset, so that the bulldozer 503 is separated from the soil, and then the collecting frame 1902 is removed, and the unqualified onion seedlings in the collecting frame 1902 are processed, and finally the collecting frame 1902 is put back to its original place.

[0039] See Figure 9 and Figure 10As shown, a loosening mechanism is also included, which includes an air pump 20, an air pipe 21 and a shielding cover 23; the air pump 20 is installed on the left side of the lower part of the frame 1, and the air pump 20 is electrically connected to the control box 3; one end of the air pipe 21 is connected to the air outlet of the air pump 20, and the other end of the air pipe 21 is connected to the hollow tube 403, and the air pipe 21 is a hose; through holes 22 are spaced apart on the hollow cone 404; a shielding cover 23 is installed on the lower side of the hollow tube 403.

[0040] By setting a loosening mechanism, after the hollow cone 404 is inserted into the soil, the hollow cone 404 can stay in the soil for a period of time, and then the control box 3 is used to control the air pump 20 to start, so that the air pump 20 draws air into the hollow tube 403 through the air pipe 21, so that the air is discharged from the through hole 22 along the hollow tube 403 and the hollow cone 404, and the air discharged from the through hole 22 is used to loosen the soil in the hole to facilitate the subsequent planting and growth of onion seedlings. When loosening the soil in the hole, the shielding cover 23 can also shield the soil splashing in the hole to prevent the soil splashing in the hole from damaging the onion seedlings planted around it. After a period of time, the control box 3 is used to control the air pump 20 to shut down.

[0041] See Figure 11 As shown, it also includes a limiting mechanism, which includes an electric slide rail 24 and a pressure plate 25; an electric slide rail 24 is installed on the top left side of the frame 1, and the electric slide rail 24 is electrically connected to the control box 3; two pressure plates 25 are connected to the slider of the electric slide rail 24, and the pressure plate 25 is used to press the onion seedlings in the seedling tray to limit the position.

[0042] By setting a limiting mechanism, after the seedling tray is placed on the slide top of the first electric slide 6, the control box 3 can control the electric slide 24 to drive the pressing plate 25 to move to the right, so that the pressing plate 25 presses the roots of the onion seedlings in the seedling tray, thereby limiting the onion seedlings. Whenever the control box 3 controls the first linear drive 8 to drive the positioning plate 901, the guide rail frame 10 and the contact sensor 15 to move to the left, the control box 3 will control the electric slide 24 to drive the pressing plate 25 to move a distance to the left, so that the pressing plate 25 releases the onion seedlings to be taken out in advance, thereby releasing the limit of the onion seedlings to be taken out. In this way, when the corresponding onion seedlings are taken out, the pressing plate 25 can limit other onion seedlings to prevent other onion seedlings from being entangled with the onion seedlings to be taken out of the seedling tray; and whenever the control box 3 controls the first electric slide 6 to drive the seedling tray to move forward, the control box 3 will control the electric slide 24 to drive the pressing plate 25 to move to the right, so that the pressing plate 25 limits the roots of the next row of onion seedlings in the seedling tray.

Claims

1. An automated onion planting device, comprising a frame (1), a driving wheel (2) and a control box (3), wherein the driving wheel (2) is symmetrically arranged on the frame (1), and the control box (3) is installed on the frame (1), characterized in that: The frame (1) is provided with a hole-opening mechanism and a pusher mechanism, the hole-opening mechanism is used to open a hole in the soil, and the pusher mechanism is used to cover the soil on the root of the onion seedling. The frame (1) is provided with a first electric slide (6), the frame (1) is provided with an adjustment mechanism, the adjustment mechanism is connected to a first linear drive (8), the adjustment mechanism is used to adjust the height and direction of the first linear drive (8), the first linear drive (8) is provided with a positioning mechanism, the positioning mechanism is used to detect the displacement of the telescopic rod of the first linear drive (8), the telescopic rod of the first linear drive (8) is connected to a guide rail frame (10), the guide rail frame (10) is connected to a fixing plate (11), the guide rail frame (10) is connected to the fixing plate (11), and the guide rail frame (10) is connected to the fixing plate (11). A clamping plate (12) is slidably provided on the rail frame (10), a spring (13) is connected between the fixed plate (11) and the clamping plate (12), a first distance sensor (14) is installed on the fixed plate (11), and the first distance sensor (14) is used to detect the distance between the fixed plate (11) and the clamping plate (12), a contact sensor (15) for contacting the onion seedlings is provided on the guide rail frame (10), a second linear drive (16) for abutting against the clamping plate (12) is provided on the guide rail frame (10), a feeding pipe (17) and a receiving hopper (18) are provided on the frame (1), and a collecting mechanism for collecting onion seedlings with unqualified stem thickness is provided on the frame (1); The hole-opening mechanism comprises a lifting frame (401), a first electric push rod (402), a hollow tube (403) and a hollow cone (404); the lifting frame (401) is slidably arranged on the frame (1); the first electric push rod (402) is mounted on the lifting frame (401); the telescopic rod of the first electric push rod (402) is connected to the hollow tube (403); the bottom of the hollow tube (403) is connected to the hollow cone (404); the hollow cone (404) is used for opening a hole in the soil; The adjustment mechanism includes a third electric push rod (701), a movable frame (702) and a motor (703); the third electric push rod (701) is installed on the frame (1); the telescopic rod of the third electric push rod (701) is connected to the movable frame (702); the motor (703) is installed on the movable frame (702); and the first linear drive (8) is connected to the output shaft of the motor (703); The positioning mechanism comprises a positioning plate (901) and a second distance sensor (902); the positioning plate (901) is connected to the telescopic rod of the first linear actuator (8); the first linear actuator (8) is provided with the second distance sensor (902); the second distance sensor (902) is used to detect the distance between the second distance sensor and the positioning plate (901); The machine also includes a loosening mechanism, which includes an air pump (20), an air pipe (21) and a shielding cover (23). The air pump (20) is installed on the frame (1). The air outlet of the air pump (20) is connected to the hollow tube (403) through the air pipe (21). Through holes (22) are spaced apart on the hollow cone (404). The shielding cover (23) is installed on the hollow tube (403). The machine frame (1) further comprises a limiting mechanism, wherein the limiting mechanism comprises an electric slide rail (24) and a pressing plate (25). The electric slide rail (24) is mounted on the machine frame (1), and the pressing plate (25) is connected to the slider of the electric slide rail (24). The pressing plate (25) is used to press the onion seedlings in the seedling tray to limit the position.

2. An automated onion planting device as claimed in claim 1, characterized in that: The bulldozer mechanism comprises a second electric push rod (501), a connecting rod (502) and a bulldozer disc (503). The second electric push rod (501) is mounted on the frame (1). The telescopic rod of the second electric push rod (501) is connected to the lifting frame (401). The bottom of the lifting frame (401) is symmetrically provided with a connecting rod (502). The bulldozer disc (503) is rotatably provided on the connecting rod (502).

3. An automated onion planting device as claimed in claim 1, characterized in that: The collecting mechanism comprises a second electric slide (1901) and a collecting frame (1902); the second electric slide (1901) is symmetrically arranged on the frame (1); the collecting frame (1902) is arranged on the slide of the second electric slide (1901); and the collecting frame (1902) is used to collect onion seedlings with unqualified stem thickness.

Images