A seedling supplementing and transplanting machine and an automatic seedling taking and planting device thereof

Abstract

A kind of supplemental transplanting machine and its automatic seedling taking and throwing device, the supplemental transplanting machine includes automatic seedling taking and throwing device, the automatic seedling taking and throwing device includes: rack;Seedling taking mechanism is installed on the rack;Seedling feeding mechanism is installed on the rack corresponding to the seedling taking mechanism, for feeding seedling tray to the seedling taking mechanism below;And sub-throwing seedling mechanism is installed on the rack and is located below the seedling taking mechanism, for catching the seedling thrown by the seedling taking mechanism and all thrown in the swing process.This application aims at the problems of existing reciprocating seedling taking and throwing device, adopts rotary automatic seedling taking and reciprocating synchronous seedling throwing, seedling taking movement has no impact, stable and reliable, seedling taking efficiency is high, mechanical structure is stable and not prone to failure;Sub-throwing seedling mechanism catches the seedling thrown by seedling taking mechanism, and throws seedling in the movement process, greatly improves the success rate of seedling catching.

Description

Technical Field

[0001] This invention relates to agricultural transplanting technology, and in particular to a seedling transplanting machine and its automatic seedling picking and placing device. Background Technology

[0002] Currently, the automatic seedling picking device of transplanters is a reciprocating row-by-row picking device, which picks up an entire row of seedlings at a time. The picking claws increase the spacing between the seedlings by adjusting the pitch, and then place the seedlings into the seedling guiding device. This type of seedling picking device involves a compound motion of picking and placing seedlings, and the reciprocating motion has a large impact, which limits the operation efficiency. Moreover, when working in dusty fields for a long time, the guide rails of the motion mechanism will frequently malfunction due to excessive dust, resulting in high maintenance costs. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a seedling transplanting machine and its automatic seedling picking and placing device, which addresses the above-mentioned deficiencies of the prior art.

[0004] To achieve the above objectives, the present invention provides an automatic seedling receiving and dispensing device, comprising:

[0005] frame;

[0006] A seedling-collecting mechanism is installed on the frame;

[0007] A seedling feeding mechanism, mounted on the frame corresponding to the seedling taking mechanism, is used to feed seedling trays row by row below the seedling taking mechanism; and

[0008] The seedling dispensing mechanism is installed on the frame and located below the seedling retrieval mechanism. It is used to catch the seedlings thrown by the seedling retrieval mechanism and dispense them all during the swinging process.

[0009] The above-mentioned automatic seedling receiving and dispensing device includes a seedling receiving mechanism comprising a non-circular gearbox, a seedling clamping cam, a seedling clamping roller, a push rod, a square shaft, and a seedling receiving component. The seedling clamping cam is installed on the outside of the non-circular gearbox; the seedling clamping roller is installed on the end of the push rod and maintains contact with the seedling clamping cam; the seedling receiving component is installed on the square shaft, and the square shaft is coaxially connected to the planetary gear shaft of the non-circular gearbox.

[0010] The above-mentioned automatic seedling picking and dispensing device includes a seedling picking component comprising a seedling claw fixing seat and a plurality of seedling claws and seedling claw opening and closing rollers mounted on the seedling claw fixing seat. The top of each seedling claw is connected to the corresponding seedling claw opening and closing roller, and a seedling claw tension spring is provided on the upper part of each seedling claw. The seedling claw fixing seat is mounted on the square shaft, and the baffle on the push rod is always in contact with the seedling claw opening and closing roller. The push rod slides back and forth along the axis of the planetary gear to drive the seedling claws to open or close.

[0011] In the aforementioned automatic seedling feeding device, the non-circular gearbox drives the planetary gear shaft to rotate the seedling clamping roller and seedling claw via the square shaft. When the seedling clamping roller contacts the high point of the seedling clamping cam, the push rod slides away from the non-circular gearbox, and the seedling claw opens. When the seedling clamping roller contacts the low point of the seedling clamping cam, the push rod slides towards the non-circular gearbox, and the seedling claw closes under the action of the seedling claw tension spring.

[0012] In the aforementioned automatic seedling picking and placing device, the seedling claw changes posture with the swing of the non-circular gearbox to meet the requirements of seedling picking and placing operations.

[0013] In the aforementioned automatic seedling receiving and dispensing device, the seedling dispensing mechanism includes a seedling separating component and a seedling dispensing component. The seedling separating component includes a seedling separating cylinder, a swinging seedling receiving plate, a swinging seedling receiving cam, a swinging seedling receiving rod, and a seedling receiving tension spring. The swinging seedling receiving rod is connected to the swinging seedling receiving plate and the swinging seedling receiving cam respectively. The swinging seedling receiving plate is disposed inside the seedling separating cylinder. The seedling receiving tension spring is connected to the swinging seedling receiving rod. The lower roller of the swinging seedling receiving rod is always in contact with the swinging seedling receiving cam under the action of the seedling receiving tension spring. The seedling dispensing component is disposed below the seedling separating cylinder.

[0014] In the aforementioned automatic seedling receiving and dispensing device, when the lower roller of the swing seedling receiving rod contacts the high point of the swing seedling receiving cam, the upper end of the swing seedling receiving rod swings to the left, causing the swing seedling receiving plate to swing to the right; when the lower roller of the swing seedling receiving rod contacts the low point of the swing seedling receiving cam, the upper end of the swing seedling receiving rod swings to the right under the action of the seedling receiving spring, causing the swing seedling receiving plate to swing to the left.

[0015] The aforementioned automatic seedling feeding device includes a seedling feeding cylinder, a swinging seedling feeding cam, a swinging seedling feeding lever, a seedling feeding trigger plate, and a seedling feeding spring. The seedling feeding cylinder is arranged corresponding to the seedling separating cylinder. One end of the swinging seedling feeding lever is connected to the swinging seedling feeding cam via a seedling feeding roller, and the other end of the swinging seedling feeding lever is connected to the seedling feeding trigger plate via a seedling feeding spring. The seedling feeding trigger plate contacts the seedling feeding cylinder.

[0016] In the aforementioned automatic seedling feeding device, when the seedling feeding roller contacts the high point of the swing seedling feeding cam, the swing seedling feeding lever swings to the right, causing the seedling feeding cylinder to move to the right and open after contacting the seedling feeding trigger plate; when the seedling feeding roller contacts the low point of the swing seedling feeding cam, the swing seedling feeding lever moves to the left under the action of the seedling feeding spring, causing the seedling feeding cylinder to move to the left and disengage from the seedling feeding trigger plate, after which the seedling feeding opening closes.

[0017] To better achieve the above objectives, the present invention also provides a seedling transplanting machine, which includes the above-mentioned automatic seedling picking and placing device.

[0018] The technical effects of this invention are as follows:

[0019] This invention addresses the problems of existing reciprocating seedling picking and placing devices by employing a rotary automatic seedling picking device and a reciprocating synchronous seedling placing device. The seedling picking device uses a rotary non-circular gearbox, and the seedling picking trajectory simulates the action of a human hand picking seedlings. The seedling picking movement is impact-free, stable, reliable, and highly efficient, with a stable mechanical structure that is not prone to failure. A flexible seedling picking claw is used, which holds the seedlings with the tension of a tension spring. Different types of tension springs can be flexibly replaced according to different seedlings. The seedling placing device catches the seedlings placed by the seedling picking device and places the seedlings down during its left and right movement. The seedlings have a lateral velocity component when placed down, which is consistent with the speed and direction of the seedling guiding device below, greatly improving the success rate of seedling picking.

[0020] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a seedling transplanter according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the planting device structure according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of a seedling-collecting mechanism according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the seedling dispensing mechanism according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the seedling delivery mechanism according to an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the tray feeding mechanism according to an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of a transmission according to an embodiment of the present invention.

[0028] Among them, the attached reference numerals

[0029] 1. Chassis

[0030] 11 Ground wheel sprocket

[0031] 12 Hexagonal Axis Sprockets

[0032] 2. Seedling guiding device

[0033] 3 Automatic seedling dispensing device

[0034] 31 Seedling Collection Agencies

[0035] 311 Non-circular Gearbox

[0036] 312 seedling clamping roller

[0037] 313 seedling clamping cam

[0038] 314 Seedling Picking Components

[0039] 3141 Seedling Claw Fixing Base

[0040] 3142 Miao Claw

[0041] 3143 Seedling Claw Opening and Closing Roller

[0042] 3144 Miao Claw Spring

[0043] 315 putter

[0044] 316 square shaft

[0045] 317 Seedling Sprocket

[0046] 32 seedling delivery agencies

[0047] 321 side panel

[0048] 322 sprocket

[0049] 323 chain

[0050] 324 seedling tray

[0051] 325 Disk Feeding Mechanism

[0052] 3251 stent

[0053] 3252 Seedling Delivery Sprocket

[0054] 3253 Ratchet

[0055] 3254 pawl

[0056] 3255 Pawl Lever

[0057] 3256 Limit lever

[0058] 3257 limit rod

[0059] 33 seedling placement agencies

[0060] 331 seedling separation components

[0061] 3311 Seedling Transplanter

[0062] 3312 Swinging Seedling Grafting Board

[0063] 3313 Oscillating Seedling Receiving Cam

[0064] 3314 Seedling Spring

[0065] 3315 Swing Seedling Transfer Rod

[0066] 332 Seedling Dispensing Components

[0067] 3321 Swing Seedling Throwing Lever

[0068] 3322 Seedling Spring

[0069] 3323 Seedling Trigger Board

[0070] 3324 Seedling Pot

[0071] 3325 Oscillating Seedling Feeding Cam

[0072] 333 seedling feeding cam sprocket

[0073] 334 Reverse Gear Sprocket

[0074] 34 racks

[0075] 35 transition sprocket

[0076] 4 Planting device

[0077] 41 Connecting Plate

[0078] 42 Planting Depth Adjustment Mechanism

[0079] 43 Duckbill Planter

[0080] 44 rotating discs

[0081] 45 line spacing adjustment screw

[0082] 46 rear connecting rod

[0083] 47 Front Connecting Rod Detailed Implementation

[0084] The structural and working principles of the present invention will be described in detail below with reference to the accompanying drawings:

[0085] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a seedling transplanter according to an embodiment of the present invention. Figure 2This is a schematic diagram of the planting device 4 according to an embodiment of the present invention. The seedling transplanting machine of the present invention includes a walking chassis 1 and a seedling guiding device 2, an automatic seedling picking and placing device 3, and a planting device 4 mounted on the walking chassis 1. The automatic seedling picking and placing device 3 is located above the seedling guiding device 2, and the planting device 4 is located below the seedling guiding device 2. The planting device 4 includes a connecting plate 41, a planting depth adjustment mechanism 42, a duckbill planter 43, a rotating disc 44, a row spacing adjustment screw 45, a front connecting rod 47, and a rear connecting rod 46. The planting device 4 is mounted on the walking chassis 1 via the connecting plate 41, the front connecting rod 47, and the rear connecting rod 46. The rotating disc 44 is mounted between the left and right connecting plates 41. The duckbill planter 43 is mounted on the rotating disc 44. The row spacing adjustment screw 45 is mounted at the front end of the left and right connecting plates 41, located in front of the front connecting rod 47. The planting depth adjustment mechanism 42 is connected to the rear connecting rod 46. The automatic seedling receiving and dispensing device 3 includes a frame 34 and a seedling receiving mechanism 31, a seedling delivery mechanism 32, and a seedling dispensing mechanism 33 mounted on the frame 34. The delivery mechanism 32 is fixed above the rear side of the frame 34, feeding seedling trays 324 row by row to the area below the receiving mechanism 31 to complete the seedling delivery. The receiving mechanism 31 is fixed above the front side of the delivery mechanism 32 via the frame 34, driven by a non-circular planetary gearbox, clamping the stems of the seedlings, removing them, and dispensing them into the seedling dispensing mechanism 33 below. The seedling dispensing mechanism 33 is fixed below the receiving mechanism 31 via the frame 34, catching the seedlings dispensed by the seedling claws 3142 and dispensing them all during the swinging process. The seedling guide device 2 is fixed below the seedling dispensing mechanism 33, rotating continuously during operation to catch the seedlings dispensed by the seedling dispensing mechanism 33. A planting device 4 is installed below the seedling guide device 2, planting the seedlings into the soil. Since the composition, structure, relative positions, connection relationships and functions of other parts of the seedling transplanting machine are all mature existing technologies, they will not be described in detail here. The automatic seedling picking and placing device 3 of the present invention will be described in detail below.

[0086] See Figures 3-5 , Figure 3 This is a schematic diagram of the seedling-taking mechanism 31 according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the seedling dispensing mechanism 33 according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the seedling feeding mechanism 32 according to an embodiment of the present invention. The automatic seedling feeding device 3 of the present invention includes: a frame 34; a seedling feeding mechanism 31, mounted on the frame 34; a seedling feeding mechanism 32, mounted on the frame 34 corresponding to the seedling feeding mechanism 31, for feeding seedling trays 324 row by row to below the seedling feeding mechanism 31; and a seedling dispensing mechanism 33, mounted on the frame 34 and located below the seedling feeding mechanism 31, for catching the seedlings dispensed by the seedling feeding mechanism 31 and dispensing them all during the swinging process.

[0087] See Figure 3In this embodiment, the seedling taking mechanism 31 includes a non-circular gearbox 311, a seedling clamping cam 313, a seedling clamping roller 312, a push rod 315, a square shaft 316, and a seedling taking component 314. The seedling clamping cam 313 is fixedly installed on the outside of the non-circular gearbox 311 by bolt connection; the seedling clamping roller 312 is fixedly installed on the end of the push rod 315 and keeps in contact with the seedling clamping cam 313 under the action of the spring of the seedling taking component; the seedling taking component 314 is installed on the square shaft 316, and the square shaft 316 is coaxially connected to the planetary gear shaft of the non-circular gearbox 311. The seedling-taking component 314 includes a seedling claw fixing seat 3141 and multiple seedling claws 3142 and seedling claw opening and closing rollers 3143 mounted on the seedling claw fixing seat 3141. The top of each seedling claw 3142 is connected to the corresponding seedling claw opening and closing roller 3143. Each seedling claw 3142 is provided with a seedling claw tension spring 3144, which is used to connect the two claw pieces on the upper part of each seedling claw 3142. The seedling claw fixing seat 3141 is mounted on the square shaft 316. The push rod 315 slides back and forth along the axis of the planetary gear. The baffle on the push rod 315 always keeps in contact with the seedling claw opening and closing rollers 3143 to drive the seedling claws 3142 to open or close.

[0088] When the gearbox rotates, the non-circular gearbox 311 drives the planetary gear shaft to rotate via the square shaft 316, thereby rotating the seedling clamping roller 312 and the seedling claw 3142. Driven by the square shaft 316, the seedling clamping roller 312 and the seedling claw 3142 rotate with the planetary gear shaft. When the seedling clamping roller 312 contacts the high point of the seedling clamping cam 313, the push rod 315 slides away from the non-circular gearbox 311, and the seedling claw 3142 opens. When the seedling clamping roller 312 contacts the low point of the seedling clamping cam 313, the push rod 315 slides towards the non-circular gearbox 311 under the action of a spring, and the seedling claw 3142 closes under the action of the seedling claw tension spring 3144. During this process, the seedling claw 3142 changes its posture with the swinging motion of the non-circular gearbox 311 to meet the requirements of seedling picking and placing operations.

[0089] See Figure 4The seedling distribution mechanism 33 of this embodiment includes a seedling distribution component 331 and a seedling placement component 332. The seedling distribution component 331 includes a seedling distribution cylinder 3311, a swinging seedling receiving plate 3312, a swinging seedling receiving cam 3313, a swinging seedling receiving rod 3315, and a seedling receiving spring 3314. The swinging seedling receiving rod 3315 is connected to the swinging seedling receiving plate 3312 and the swinging seedling receiving cam 3313 respectively. The swinging seedling receiving plate 3312 is disposed inside the seedling distribution cylinder 3311. The seedling receiving spring 3314 is connected to the swinging seedling receiving rod 3315. The lower roller of the swinging seedling receiving rod 3315 is always in contact with the swinging seedling receiving cam 3313 under the action of the seedling receiving spring 3314. The seedling placement component 332 is disposed below the seedling distribution cylinder 3311.

[0090] When the lower roller of the swinging seedling receiving rod 3315 contacts the high point of the swinging seedling receiving cam 3313, the upper end of the swinging seedling receiving rod 3315 swings to the left, causing the swinging seedling receiving plate 3312 to swing to the right; when the lower roller of the swinging seedling receiving rod 3315 contacts the low point of the swinging seedling receiving cam 3313, the upper end of the swinging seedling receiving rod 3315 swings to the right under the action of the seedling receiving spring 3314, causing the swinging seedling receiving plate 3312 to swing to the left. The seedling feeding component 332 includes a seedling feeding cylinder 3324, a swinging seedling feeding cam 3325, a swinging seedling feeding lever 3321, a seedling feeding trigger plate 3323, and a seedling feeding spring 3322. The seedling feeding cylinder 3324 is provided corresponding to the seedling separating cylinder 3311. One end of the swinging seedling feeding lever 3321 is connected to the swinging seedling feeding cam 3325 through a seedling feeding roller, and the other end of the swinging seedling feeding lever 3321 is connected to the seedling feeding trigger plate 3323 through the seedling feeding spring 3322. The seedling feeding trigger plate 3323 contacts the seedling feeding cylinder 3324. When the seedling roller contacts the high point of the swing seedling cam 3325, the swing seedling rod 3321 swings to the right, causing the seedling cylinder 3324 to move to the right and contact the seedling trigger plate 3323, opening the seedling inlet; when the seedling roller contacts the low point of the swing seedling cam 3325, the swing seedling rod 3321 moves to the left under the action of the seedling tension spring 3322, causing the seedling cylinder 3324 to move to the left and disengage from the seedling trigger plate 3323, closing the seedling inlet.

[0091] See Figure 5 and Figure 6The seedling feeding mechanism 32 in this embodiment includes a side plate 321, a sprocket 322, a chain 323, a seedling tray 324, and a tray feeding mechanism 325. The tray feeding mechanism 325 and the sprocket 322 are respectively mounted on the side plate 321. The tray feeding mechanism 325 is connected to the sprocket 322 via the chain 323. The seedling tray 324 is supported and mounted between the two side plates 321. The tray feeding mechanism 325 includes a bracket 3251 and seedling feeding sprocket 3252, ratchet 3253, pawl 3254, pawl lever 3255, limit lever 3256, and limit rod 3257 mounted on the bracket 3251. When the seedling feeding mechanism 32 is working, the seedling feeding sprocket 3252 drives the connected ratchet lever 3255 and limit lever 3256 to rotate. During the rotation of the ratchet lever 3255 and limit lever 3256, the limit lever 3256 first pushes open the limit lever 3257, and then the ratchet lever 3255 drives the ratchet 3254 to push the ratchet 3253 to rotate. The ratchet 3253 drives the rear sprocket connected to it to rotate, and drives the sprocket 322 through the chain 323, thus feeding the seedling tray. The intermittent feed mechanism 325 converts the continuous circular motion of the seedling feeding sprocket 3252 into intermittent feed. The ratchet 3253 is connected to the rear sprocket shaft through a keyway. The rear sprocket drives the sprocket 322 to move synchronously through the chain 323. The left and right sets of chains 323 are connected by a crossbar. The seedling tray 324 is placed on the crossbar. As the chain 323 feeds forward, it drives the seedling tray 324 to move together. The rear sprocket feeds one row, which drives the sprocket 322 to feed one row, and the seedling tray 324 feeds one row accordingly.

[0092] See Figure 7 , Figure 7 This is a transmission diagram of an embodiment of the present invention. All the power of the seedling transplanter of the present invention comes from the ground wheel sprocket 11 of the chassis 1. The ground wheel sprocket 11 drives the hexagonal shaft sprocket 12 connected to it. The planting device 4 and the seedling guiding device 2 are respectively connected to the hexagonal shaft sprocket 12 and driven by the hexagonal shaft sprocket 12. The hexagonal shaft sprocket 12 also branches off to drive the transition sprocket 35 installed on the frame 34. The transition sprocket 35 drives the seedling dispensing cam sprocket 333. The coaxial sprocket of the seedling dispensing cam sprocket 333 drives the seedling picking sprocket 317. The shaft of the seedling dispensing cam sprocket 333 is driven by a gear meshing with the reverse gear sprocket 334. The reverse gear sprocket 334 is connected to the tray feeding mechanism 325. The tray feeding mechanism 325 drives the sprocket 322 to complete the feeding of the seedling tray 324.

[0093] During operation, the space between seedlings in the seedling tray 324 is relatively small. To ensure sufficient space for seedling retrieval, seedlings in a single row are removed from the seedling tray 324 at intervals during each retrieval. Two sets of seedling retrieval components 314, positioned at the front and rear, work together to complete the retrieval of an entire row of seedlings. Two sets of seedling retrieval mechanisms 31 and seedling delivery mechanisms 32 can be symmetrically arranged on the left and right sides. The seedling separating component 331 swings left and right by the swinging seedling receiving plate 3312 to adapt to the retrieval and delivery of seedlings in the left and right positions respectively. The seedling delivery component feeds the seedling tray 324 intermittently row by row, while the seedling retrieval component 314 faces the seedling to be retrieved. At this time, the seedling claw 3142, driven by the non-circular gearbox 311, reaches the seedling clamping position, clamps the stem of the seedling, and removes the seedling from the seedling tray 324. The seedling claw 3142 grips the seedling and moves it above the seedling dispensing mechanism 33 and throws it out. The seedling falls into the seedling dispensing cylinder 3311 and enters the seedling dispensing cylinder 3324 under the action of the swinging seedling receiving cam 3313. Under the action of the swinging seedling dispensing cam 3325, it is finally put into the corresponding seedling guiding device 2 below. During the movement, the seedling guiding device 2 puts the seedlings into the planting device 4 one by one. If there are missing seedlings in the tray, the missing seedlings can be manually put into the seedling guiding device 2 from the back of the machine, and then the planting device 4 will plant the seedlings into the soil.

[0094] This invention addresses the problems of existing reciprocating seedling picking and placing devices by employing a rotary automatic seedling picking device and a reciprocating synchronous seedling placing device. The seedling picking device uses a rotary non-circular gearbox 311, and the seedling picking trajectory simulates the action of a human hand picking seedlings. The seedling picking movement is impact-free, stable, reliable, and efficient, and the mechanical structure is stable and not prone to failure. A flexible seedling picking claw 3142 is used to hold the seedlings by tension springs, and different types of tension springs can be flexibly replaced according to different seedlings. The seedling placing device catches the seedlings placed by the seedling picking device and places the seedlings down during the left and right movement. The seedlings have a lateral velocity when placed down, which is consistent with the speed and direction of the seedling guiding device 2 below, greatly improving the success rate of seedling picking.

[0095] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. An automatic seedling receiving and dispensing device, characterized in that, include: frame; A seedling-collecting mechanism is installed on the frame; A seedling feeding mechanism, which is installed on the frame corresponding to the seedling taking mechanism, is used to feed seedling trays row by row to the area below the seedling taking mechanism; as well as The seedling dispensing mechanism is installed on the frame and located below the seedling retrieval mechanism. It is used to catch the seedlings thrown by the seedling retrieval mechanism and dispense them all during the swinging process. The seedling dispensing mechanism includes a seedling separating component and a seedling dispensing component. The seedling separating component includes a seedling separating cylinder, a swinging seedling receiving plate, a swinging seedling receiving cam, a swinging seedling receiving rod, and a seedling receiving spring. The swinging seedling receiving rod is connected to the swinging seedling receiving plate and the swinging seedling receiving cam respectively. The swinging seedling receiving plate is disposed inside the seedling separating cylinder. The seedling receiving spring is connected to the swinging seedling receiving rod. The lower roller of the swinging seedling receiving rod is always in contact with the swinging seedling receiving cam under the action of the seedling receiving spring. The seedling dispensing component is disposed below the seedling separating cylinder. The seedling feeding component includes a seedling feeding cylinder, a swinging seedling feeding cam, a swinging seedling feeding lever, a seedling feeding trigger plate, and a seedling feeding spring. The seedling feeding cylinder is set corresponding to the seedling separating cylinder. One end of the swinging seedling feeding lever is connected to the swinging seedling feeding cam through a seedling feeding roller, and the other end of the swinging seedling feeding lever is connected to the seedling feeding trigger plate through a seedling feeding spring. The seedling feeding trigger plate contacts the seedling feeding cylinder. When the seedling feeding roller contacts the high point of the swing seedling feeding cam, the swing seedling feeding lever swings to the right, causing the seedling feeding cylinder to move to the right and opening after contacting the seedling feeding trigger plate; when the seedling feeding roller contacts the low point of the swing seedling feeding cam, the swing seedling feeding lever moves to the left under the action of the seedling feeding spring, causing the seedling feeding cylinder to move to the left and disengage from the seedling feeding trigger plate, closing the seedling feeding opening. The seedling picking mechanism adopts a rotary automatic seedling picking mechanism. The seedling dispensing mechanism catches the seedlings dropped by the seedling picking mechanism and dispensing the seedlings in a synchronous left-right reciprocating motion. The seedlings have a lateral velocity when they are dropped, which is consistent with the speed and direction of the seedling guiding device below.

2. The automatic seedling receiving and dispensing device as described in claim 1, characterized in that, The seedling-taking mechanism includes a non-circular gearbox, a seedling-clamping cam, a seedling-clamping roller, a push rod, a square shaft, and a seedling-taking component. The seedling-clamping cam is installed on the outside of the non-circular gearbox; the seedling-clamping roller is installed on the end of the push rod and maintains contact with the seedling-clamping cam; the seedling-taking component is installed on the square shaft, and the square shaft is coaxially connected to the planetary gear shaft of the non-circular gearbox.

3. The automatic seedling receiving and dispensing device as described in claim 2, characterized in that, The seedling taking component includes a seedling claw fixing seat and multiple seedling claws and seedling claw opening and closing rollers mounted on the seedling claw fixing seat. The top of each seedling claw is connected to the corresponding seedling claw opening and closing roller, and a seedling claw tension spring is provided on the upper part of each seedling claw. The seedling claw fixing seat is mounted on the square shaft, and the baffle on the push rod is always in contact with the seedling claw opening and closing roller. The push rod slides back and forth along the axis of the planetary gear to drive the seedling claws to open or close.

4. The automatic seedling receiving and dispensing device as described in claim 3, characterized in that, The non-circular gearbox drives the planetary gear shaft to rotate the seedling clamping roller and the seedling claw through the square shaft. When the seedling clamping roller contacts the high point of the seedling clamping cam, the push rod slides away from the non-circular gearbox, and the seedling claw opens. When the seedling clamping roller contacts the low point of the seedling clamping cam, the push rod slides towards the non-circular gearbox, and the seedling claw closes under the action of the seedling claw tension spring.

5. The automatic seedling receiving and dispensing device as described in claim 4, characterized in that, The seedling claw changes its posture as the non-circular gearbox swings to meet the requirements of seedling picking and placing operations.

6. The automatic seedling receiving and dispensing device as described in claim 1, characterized in that, When the lower roller of the swinging seedling receiving rod contacts the high point of the swinging seedling receiving cam, the upper end of the swinging seedling receiving rod swings to the left, causing the swinging seedling receiving plate to swing to the right; when the lower roller of the swinging seedling receiving rod contacts the low point of the swinging seedling receiving cam, the upper end of the swinging seedling receiving rod swings to the right under the action of the seedling receiving spring, causing the swinging seedling receiving plate to swing to the left.

7. A seedling transplanting machine, characterized in that, Includes the automatic seedling receiving and dispensing device as described in any one of claims 1-6.

Images