Continuous ejection device and pot seedling transplanter

Abstract

The invention provides a continuous ejection device and a pot seedling transplanter, and belongs to the technical field of pot seedling taking. The continuous ejection device comprises a shell, a cam transmission mechanism, a chain transmission mechanism, an ejection mechanism, a seedling tray conveying mechanism and a driving mechanism. The cam transmission mechanism is arranged in the shell, the chain transmission mechanism is arranged on the cam transmission mechanism in a surrounding mode, and the ejection mechanisms are evenly arranged on the chain transmission mechanism and movably connected with the surface of a cam. The seedling tray conveying mechanism is arranged on one side of the shell and faces the bulge of the cam; the driving mechanism is connected with the cam transmission mechanism to drive the whole device to work; with the driving of the driving mechanism, the ejection mechanism can continuously eject vegetable seedlings in the seedling tray conveying mechanism, the device can realize continuous and automatic ejection of the vegetable seedlings, and compared with traditional seedling taking, the working efficiency is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of pot seedling extraction, and in particular to a continuous ejection device and a pot seedling transplanter. Background Art

[0002] Vegetable seedlings may die due to many factors during their growth, and the survival rate is not high. Transplanting seedlings in pots has the advantages of fast greening and shortened growth cycle. Transplanting technology can effectively avoid climate problems such as low temperature and frost, and improve the survival rate of vegetable seedlings.

[0003] At present, the seedling removal device in the existing vegetable transplanter still needs manual operation. The cost of manual seedling removal is high, the efficiency is low, and the labor intensity is high. The existing vegetable transplanter requires multiple people to work at the same time, which delays time and wastes a lot of labor. It is of great significance to develop a mechanized and highly automated vegetable transplanter seedling removal device. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art or related art.

[0005] To this end, a first aspect of the present application is to provide a continuous ejection device.

[0006] The second aspect of the present application is to provide a pot seedling transplanter.

[0007] In view of this, according to a first aspect of the present application, a continuous ejection device is provided, comprising:

[0008] case;

[0009] A cam transmission mechanism, comprising a cam, wherein the cam transmission mechanism is disposed in the housing, and both ends of the cam transmission mechanism are rotatably connected to the housing;

[0010] A chain transmission mechanism is disposed around the cam transmission mechanism, and two ends of the chain transmission mechanism are transmission-connected to two ends of the cam transmission mechanism;

[0011] The ejection mechanism is evenly arranged on the chain transmission mechanism, and the ejection mechanism is rotationally connected to the chain transmission mechanism; the ejection mechanism is also movably connected to the cam surface;

[0012] A seedling tray conveying mechanism is arranged on one side of the housing, and the seedling tray conveying mechanism faces the protrusion of the cam;

[0013] The driving mechanism is arranged on one side of the housing, and the driving mechanism is connected to the cam transmission mechanism.

[0014] In a possible technical solution, further, the cam has two oppositely disposed flat surfaces and a surrounding surface disposed between the two flat surfaces; the protrusion of the cam is located on the surrounding surface, and the cam further includes:

[0015] A surrounding groove, which is arranged on the surrounding surface, and the surrounding groove has the same shape as the surrounding surface;

[0016] Two surrounding slide grooves are respectively arranged on two opposite inner side walls of the surrounding groove, and the two surrounding slide grooves are arranged opposite to each other; the two surrounding slide grooves are of the same shape as the surrounding surface; and the two surrounding slide grooves are both slidably connected to the ejection mechanism;

[0017] Three mounting holes are arranged through the flat surface, and the three mounting holes are respectively located at the protrusion and two ends of the flat surface.

[0018] In a possible technical solution, further, the cam transmission mechanism also includes:

[0019] A rotating shaft is arranged in the mounting hole, each mounting hole is rotatably connected to a rotating shaft, and one end of any rotating shaft passes through the housing and is connected to the driving mechanism;

[0020] Sprockets are arranged at both ends of the rotating shaft, and each of the two ends of the rotating shaft is provided with a sprocket respectively; the sprockets are all connected to the chain transmission mechanism in a transmission manner;

[0021] Both ends of each rotating shaft extend from the sprocket to the housing, and both ends of each rotating shaft are rotatably connected to the housing.

[0022] In a possible technical solution, further, the chain transmission mechanism includes:

[0023] Two chains are respectively arranged on the sprockets on both sides of the cam, and the chain on the same side of the cam is transmission-connected with each of the sprockets; the chain includes a plurality of nodes, and the distance between any two adjacent nodes is equal;

[0024] A plurality of connecting rods are arranged between the two chains, the two ends of the connecting rods are respectively connected to two opposite nodes of the two chains, the distance between any two adjacent connecting rods is equal, and the connecting rods are rotatably connected to the ejection mechanism.

[0025] In a possible technical solution, further, the ejection mechanism includes:

[0026] A first connecting plate, rotatably connected to the connecting rod;

[0027] Two pulleys are respectively arranged on both sides of one end of the first connecting plate, and the two pulleys are respectively slidably arranged in the two opposite surrounding sliding grooves;

[0028] Two cross roller assemblies, the two cross roller assemblies are symmetrically arranged at two ends of the first connecting plate away from the pulley on the side with the center of the first connecting plate as the axis;

[0029] A second connecting plate is arranged on a side of the cross roller assembly away from the first connecting plate, and the second connecting plate is connected to the two cross roller assemblies;

[0030] A push rod assembly is arranged at an end of the second connecting plate away from the cross roller assembly.

[0031] In a possible technical solution, further, the first connecting plate includes:

[0032] An L-shaped plate, comprising a transverse plate and a vertical plate connected to the transverse plate, wherein a side of the transverse plate close to the vertical plate is connected to the cross roller assembly;

[0033] A rotation hole is provided on a side of the horizontal plate away from the vertical plate, and the first connecting plate is rotatably connected to the connecting rod through the rotation hole;

[0034] A step plate, arranged on a side of the horizontal plate away from the vertical plate;

[0035] Two rotating rods are respectively arranged at two ends of the step plate away from the horizontal plate, and the two rotating rods are respectively connected to the pulley for rotation.

[0036] In a possible technical solution, further, the cross roller assembly includes:

[0037] A first roller slider is arranged on the vertical plate near the vertical plate;

[0038] A second roller slider is arranged on a side of the first roller slider away from the L-shaped plate, and the second roller slider is slidably engaged with the first roller slider;

[0039] A mounting stud is arranged on one side of the first roller slider close to the center of the horizontal plate, one end of the mounting stud is connected to the horizontal plate, and a nut is installed on the other end; one end of the mounting stud away from the horizontal plate is suspended on the top of the second connecting plate;

[0040] A return torsion spring is disposed around the mounting stud, one end of the return torsion spring contacts the vertical plate, and the other end contacts the inner side wall of the second connecting plate.

[0041] In a possible technical solution, further, the push rod assembly includes:

[0042] Two pull rods are respectively arranged at two ends of the second connecting plate away from the second roller slider;

[0043] A plurality of push rods are evenly arranged on a side of the second connecting plate away from the second roller slider, and the plurality of push rods are arranged between the two pull rods.

[0044] In a possible technical solution, further, the seedling tray conveying mechanism includes:

[0045] A seedling tray track is arranged on one side of the shell, and slide rails arranged opposite to each other are arranged on both sides of the seedling tray track; vertical grooves are arranged on both sides of the seedling tray track facing the cam protrusion, and the vertical grooves on the same side are connected with the slide rail; a plurality of evenly arranged vertical top grooves are arranged between two vertical grooves;

[0046] The seedling tray of the pot body is arranged in the seedling tray track, and the two ends of the seedling tray of the pot body are respectively slidably connected with the slide rails on both sides of the seedling tray track, and the two ends of the seedling tray of the pot body are respectively provided with a row of evenly arranged pulling holes, and the seedling tray of the pot body is provided with a plurality of seedling holes arranged in an array, and the seedling holes are all arranged between the two rows of pulling holes;

[0047] A pressing plate is arranged on one side of the seedling tray of the pot body, and the pressing plate contacts and squeezes the seedling tray of the pot body.

[0048] The present application provides a continuous ejection device, whose working principle is as follows: the device is connected with the cam transmission mechanism through a driving mechanism, and when the driving mechanism rotates, the driving mechanism drives some components in the cam transmission mechanism to rotate; and the two ends of the chain transmission mechanism, which are arranged around the cam transmission mechanism and are transmission-connected to the two ends of the cam transmission mechanism, also means that when some components in the cam transmission mechanism rotate, the chain transmission mechanism transmission-connected thereto will also rotate, thereby causing the chain transmission mechanism to perform a circular motion around the cam in the cam transmission mechanism; thereby driving the ejection mechanism uniformly arranged on the chain transmission mechanism to perform a circular motion around the cam, and the ejection mechanism is also movably connected to the cam, and the ejection mechanism is movably connected to the cam surface, so that the ejection mechanism moves along the surface of the cam, thereby changing the surface of the cam. and make direction adjustment; when the ejection mechanism moves to the raised upper end of the cam and is still a certain distance from the raised position, the ejection mechanism begins to enter the seedling tray conveying mechanism, and the seedlings in the seedling tray conveying mechanism begin to be ejected, and as the ejection mechanism continues to move downward, the ejection mechanism will drive some components in the seedling tray conveying mechanism to move downward until the ejection mechanism moves to the position corresponding to the protrusion. At this time, the ejection mechanism will move to the deepest part of the seedling tray conveying mechanism, and the seedlings in the seedling tray conveying mechanism will be completely ejected. At the same time, the previous ejection mechanism has just begun to enter the seedling tray conveying mechanism and then moves downward. The current ejection mechanism will gradually retreat from the seedling tray conveying mechanism until it is separated from the seedling tray conveying mechanism, and the previous ejection mechanism gradually moves to the position corresponding to the protrusion, and this cycle is repeated to continuously eject the seedlings in the seedling tray conveying mechanism.

[0049] Compared with the prior art, the continuous ejection device provided by the present application has the following beneficial effects: the chain transmission mechanism is driven to rotate by the rotation of the cam transmission mechanism, thereby driving the ejection mechanisms evenly arranged on the chain transmission mechanism to rotate around the cam, so that the ejection mechanism can continuously eject the seedlings in the seedling tray conveying mechanism; the cam transmission mechanism is driven to rotate by the driving mechanism, thereby realizing the automatic operation of the ejection mechanism, so that the device can realize automatic seedling removal. Compared with traditional manual seedling removal, the seedling removal efficiency of the device of the present application is greatly improved.

[0050] According to a second aspect of the present application, a pot seedling transplanter is provided, comprising a continuous ejection device provided by any of the above designs.

[0051] The present application provides a pot seedling transplanter, which includes a continuous ejection device provided by any of the above-mentioned designs, and therefore has all the beneficial effects of the continuous ejection device, which will not be repeated here.

[0052] Additional aspects and advantages of the present application will become apparent in the following description or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0054] Figure 1 A schematic structural diagram of a continuous ejection device according to an embodiment of the present application is shown;

[0055] Figure 2 A schematic diagram of the internal structure of a continuous ejection device according to an embodiment of the present application is shown;

[0056] Figure 3 A schematic structural diagram of a cam transmission assembly and a chain transmission assembly in a continuous ejection device according to an embodiment of the present application is shown;

[0057] Figure 4 A schematic structural diagram of a cam transmission assembly in a continuous ejection device according to an embodiment of the present application is shown;

[0058] Figure 5 A schematic diagram of a cam structure in a continuous ejection device according to an embodiment of the present application is shown;

[0059] Figure 6 A schematic diagram of the structure of an ejection mechanism in a continuous ejection device according to an embodiment of the present application is shown;

[0060] Figure 7 A schematic diagram of a partial structure of an ejection mechanism in a continuous ejection device according to an embodiment of the present application is shown;

[0061] Figure 8 A schematic diagram of an L-shaped plate structure in a continuous ejection device according to an embodiment of the present application is shown;

[0062] Fig. 9 A schematic structural diagram showing a continuous ejection device in which an ejector rod and a pull rod are installed on a second connecting plate according to an embodiment of the present application;

[0063] Fig.10 A partial structural schematic diagram of a chain transmission assembly of a continuous ejection device according to an embodiment of the present application is shown;

[0064] Fig.11 A schematic diagram of the structure of a second connecting plate in a continuous ejection device according to an embodiment of the present application is shown;

[0065] Fig.12 A schematic diagram of a seedling tray track structure in a continuous ejection device according to an embodiment of the present application is shown.

[0066] in, Figures 1 to 12The corresponding relationship between the reference numerals and the component names is as follows:

[0067] 1. Shell;

[0068] 2. cam transmission mechanism; 21. cam; 22. rotating shaft; 23. sprocket; 211. flat surface; 212. surrounding surface; 213. surrounding groove; 214. surrounding slide groove; 215. mounting hole;

[0069] 3. Chain transmission mechanism; 31. Chain; 32. Connecting rod; 311. Node;

[0070] 4. Ejection mechanism, 41. First connecting plate; 42. Pulley; 43. Cross roller assembly; 44. Second connecting plate; 45. Ejector assembly; 411. L-shaped plate; 412. Rotation hole; 413. Step plate; 414. Rotating rod; 431. First roller slider; 432. Second roller slider; 433. Mounting stud; 434. Reset torsion spring; 451. Pull rod; 452. Ejector; 4111. Horizontal plate; 4112. Vertical plate;

[0071] 5. Seedling tray conveying mechanism; 51. Seedling tray track; 52. Seedling tray in pot; 53. Platen pressing member; 511. Slide rail; 512. Vertical pull groove; 513. Vertical top groove; 521. Seedling hole; 522. Pull hole;

[0072] 6. Driving mechanism. DETAILED DESCRIPTION

[0073] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0074] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0075] Refer to the following Figures 1 to 12 A continuous ejection device and a pot seedling transplanter are described according to some embodiments of the present application.

[0076] Example 1

[0077] A continuous ejection device comprises a shell 1, a cam transmission mechanism 2, a chain transmission mechanism 3, an ejection mechanism 4, a seedling tray conveying mechanism 5 and a driving mechanism 6; wherein the cam transmission mechanism 2 comprises a cam 21, the cam transmission mechanism 2 is arranged in the shell 1, and the two ends of the cam transmission mechanism 2 are rotatably connected to the shell 1; the chain transmission mechanism 3 is arranged around the cam transmission mechanism 2, and the two ends of the chain transmission mechanism 3 are transmission-connected to the two ends of the cam transmission mechanism 2; the ejection mechanism 4 is evenly arranged on the chain transmission mechanism 3, and the ejection mechanism 4 is rotationally connected to the chain transmission mechanism 3; the ejection mechanism 4 is also movably connected to the surface of the cam 21; the seedling tray conveying mechanism 5 is arranged on one side of the shell 1, and the seedling tray conveying mechanism 5 faces the protrusion of the cam 21; the driving mechanism 6 is arranged on one side of the shell 1, and the driving mechanism 6 is connected to the cam transmission mechanism 2.

[0078] According to a continuous ejection device of the present embodiment, the driving mechanism 6 is connected to the cam transmission mechanism 2 through the driving mechanism 6. When the driving mechanism 6 rotates, the driving mechanism 6 drives some components in the cam transmission mechanism 2 to rotate; and the two ends of the chain transmission mechanism 3 arranged around the cam transmission mechanism 2 and drivingly connected to the two ends of the cam transmission mechanism 2, that is, when some components in the cam transmission mechanism 2 rotate, the chain transmission mechanism 3 drivingly connected thereto will also rotate, so that the chain transmission mechanism 3 makes a circular motion around the cam 21 in the cam transmission mechanism 2; thereby driving the ejection mechanism 4 evenly arranged on the chain transmission mechanism 3 to make a circular motion around the cam 21, and the ejection mechanism 4 is also movably connected to the surface of the cam 21, and the ejection mechanism 4 is movably connected to the surface of the cam 21, so that the ejection mechanism 4 moves along the surface of the cam 21, thereby making a square according to the surface change of the cam 21. When the ejection mechanism 4 moves to the raised upper end of the cam 21 and there is still a certain distance from the raised position of the cam 21, the ejection mechanism 4 begins to enter the seedling tray conveying mechanism 5, and the seedlings in the seedling tray conveying mechanism 5 begin to be ejected. As the ejection mechanism 4 continues to move downward, the ejection mechanism 4 will drive some parts in the seedling tray conveying mechanism 5 to move downward until the ejection mechanism 4 moves to the position corresponding to the protrusion 21. At this time, the ejection mechanism 4 will move to the deepest part of the seedling tray conveying mechanism 5, and the seedlings in the seedling tray conveying mechanism 5 will be completely ejected. At the same time, the previous ejection mechanism 4 has just started to enter the seedling tray conveying mechanism 5, and then moves downward, and the current ejection mechanism 4 will gradually retreat from the seedling tray conveying mechanism 5 until it is separated from the seedling tray conveying mechanism 5, and the previous ejection mechanism 4 gradually moves to the position corresponding to the protrusion 21, in this way, the seedlings in the seedling tray conveying mechanism 5 are continuously ejected.

[0079] It should be noted that the cam 21 has two oppositely arranged flat surfaces 211 and a surrounding surface 212 arranged between the two flat surfaces 211; the protrusion of the cam 21 is located on the surrounding surface 212, and the cam 21 also includes a surrounding groove 213, two surrounding slide grooves 214, and three mounting holes 215; wherein the surrounding groove 213 is arranged on the surrounding surface 212 in a surrounding manner, and the surrounding groove 213 has the same shape as the surrounding surface 212; the two surrounding slide grooves 214 are respectively arranged on two opposite inner side walls of the surrounding groove 213, and the two surrounding slide grooves 214 are arranged oppositely; the two surrounding slide grooves 214 have the same shape as the surrounding surface 212; the two surrounding slide grooves 214 are both slidably connected to the ejection mechanism 4; the three mounting holes 215 are arranged through the flat surface 211, and the three mounting holes 215 are respectively located at the protrusion and two ends of the flat surface 211.

[0080] Furthermore, when the cam transmission mechanism 2 drives the chain transmission mechanism 3 to move, the ejection mechanism 4 located on the chain transmission mechanism 3 rotates around the surrounding groove 213 on the surrounding surface 212 of the cam 21, and the components in the ejection mechanism 4 are located in the two surrounding slide grooves 214 on the inner side wall of the surrounding groove 213 and are slidably connected with the two surrounding slide grooves 214; the ejection mechanism 4 is driven by the chain transmission mechanism 3 to cyclically rotate around the surrounding surface 212 of the cam 21; because the trajectory of the surrounding slide groove 214 is the same as the trajectory of the surrounding surface 212 of the cam 21, the trajectory of the surrounding surface 212 is set The design is such that, while rotating, the surrounding slide groove 214 and the chain transmission mechanism 3 cooperate to adjust the angle of the ejection mechanism 4, so that when the ejection mechanism 4 is located at a distance from the upper end of the protrusion of the cam 21 to a distance from the lower end of the protrusion, the ejection mechanism 4 always remains perpendicular to the seedling tray conveying mechanism 5; when the ejection mechanism 4 is located at a distance from the upper end of the protrusion of the cam 21, the ejection mechanism 4 begins to enter the seedling tray conveying mechanism 5, and as the chain transmission mechanism 3 moves downward with the ejection mechanism 4, the ejection mechanism 4 drives some components in the seedling tray conveying mechanism 5 to move downward together, and the ejection mechanism 4 is The depth of mechanism 4 entering into seedling tray conveying mechanism 5 gradually increases, and the seedlings in seedling tray conveying mechanism 5 are gradually ejected. As the ejection mechanism 4 continues to move downward, the ejection mechanism 4 will drive some components in the seedling tray conveying mechanism 5 to move downward until the ejection mechanism 4 moves to the raised position of the cam 21 (that is, the extreme position of the cam 21, the position of the cam 21 closest to the seedling tray conveying mechanism 5). At this time, the ejection mechanism 4 will move to the deepest part of the seedling tray conveying mechanism 5, and the seedlings in the seedling tray conveying mechanism 5 corresponding to the current ejection mechanism 4 will be completely ejected, and the seedlings located above the current ejection mechanism 4 will be completely ejected. The first ejection mechanism 4 (that is, the ejection mechanism 4 that follows the current ejection mechanism 4 and is located above the current ejection mechanism 4) begins to enter the seedling tray conveying mechanism 5 and then moves downward. The current ejection mechanism 4 continues to drive the components in the seedling tray conveying mechanism 5 to move downward. At this time, the current ejection mechanism 4 will gradually retreat from the seedling tray conveying mechanism 5 until it is separated from the seedling tray conveying mechanism 5. However, the previous ejection mechanism 4 repeats the movement of the current ejection mechanism 4, and the seedlings corresponding to the previous ejection mechanism 4 in the seedling tray conveying mechanism 5 will be completely ejected, thereby realizing continuous ejection of the seedlings.

[0081] It should be noted that the cam transmission mechanism 2 also includes a rotating shaft 22 and a sprocket 23; wherein the rotating shaft 22 is arranged in the mounting hole 215, and each mounting hole 215 is rotatably connected to a rotating shaft 22, and one end of any rotating shaft 22 passes through the shell 1 and is connected to the driving mechanism 6; the sprocket 23 is arranged at both ends of the rotating shaft 22, and a sprocket 23 is respectively provided at both ends of each rotating shaft 22; the sprockets 23 are transmission-connected to the chain transmission mechanism 3; both ends of each rotating shaft 22 extend from the sprocket 23 to the shell 1, and both ends of each rotating shaft 22 are rotationally connected to the shell 1.

[0082] Furthermore, the rotating shaft 22 is arranged in the mounting hole 215, and each mounting hole 215 is rotatably connected to a rotating shaft 22, so that the three mounting holes 215 are all provided with a rotating shaft 22, and one end of any rotating shaft 22 passes through the housing 1 and is connected to the driving mechanism 6, which means that the driving mechanism can drive the rotating shaft 22 connected thereto to rotate in the mounting hole 215, and the sprockets 23 are arranged at both ends of the rotating shaft 22, and each of the two ends of the rotating shaft 22 is respectively provided with a sprocket 23; it means that the rotating shaft 22 connected thereto is driven to rotate by the driving mechanism 6, thereby driving the sprockets 23 at both ends of the transmission shaft 22 to rotate, and since the six sprockets 23 are all connected to the chain transmission mechanism 3 for transmission, connection; and the three mounting holes 215 are respectively located at the protrusion and two ends of the flat surface 211, which means that the positions of the three rotating shafts 22 are arranged in a triangle and are similar to the shape of the cam 21, so that the chain transmission mechanism 3 arranged on the three pairs of oppositely arranged sprockets 23 has a shape similar to the cam 21; thus, when the sprockets 23 at both ends of one of the transmission shafts 22 rotate, the chain transmission mechanism 3 is driven to rotate, and through the three pairs of oppositely arranged sprockets 23, the chain transmission mechanism 3 is caused to rotate cyclically along a trajectory similar to the shape of the cam, thereby driving the ejection mechanism 4 arranged on the chain transmission mechanism 3 to rotate cyclically along a trajectory similar to the shape of the cam 21.

[0083] It should be noted that the chain transmission mechanism 3 includes two chains 31 and multiple connecting rods 32; wherein the two chains 31 are respectively arranged on the sprockets 23 on both sides of the cam 21, and the chain 31 located on the same side of the cam 21 and each sprocket 23 are transmission connected; the chain 31 includes multiple nodes 311, and the distance between any two adjacent nodes 311 is equal; multiple connecting rods 32 are arranged between the two chains 31, and the two ends of the connecting rod 32 are respectively connected to two opposite nodes 311 in the two chains 31, and the distance between any two adjacent connecting rods 32 is equal; the connecting rod 32 is rotationally connected to the ejection mechanism 4.

[0084] Furthermore, two chains 31 are respectively arranged on both sides of the cam 21, and are respectively connected to the three sprockets 23 on both sides of the cam 21. The two chains 31 are respectively wound around the three sprockets 23 arranged in a triangle on both sides of the boss 21. When one pair of sprockets 23 rotates at the same time, the two chains 31 are driven to move, so that the two chains 31 are cyclically rotated around the three pairs of sprockets 23 through the other two pairs of sprockets 23; and the chain 31 includes a plurality of nodes 311, and the distance between any two adjacent nodes 311 is equal; a plurality of connecting rods 32 are arranged between the two chains 31, and the two ends of the connecting rod 32 are respectively connected to two opposite nodes 311 in the two chains 31, and the distance between any two adjacent connecting rods 32 is equal. The connecting rod 32 is used to install the ejection mechanism 4, so that the connecting rod 32 moves around the surrounding groove 213 in the surrounding surface 212 of the cam 21, so as to drive the ejection mechanism 4 to cyclically move around the surrounding surface 212 of the cam 21.

[0085] It should be noted that the ejection mechanism 4 includes a first connecting plate 41, two pulleys 42, two cross roller assemblies 43, a second connecting plate 44 and a ejector rod assembly 45; wherein the first connecting plate 41 is rotatably connected to the connecting rod 32; the two pulleys 42 are respectively arranged on both sides of one end of the first connecting plate 41, and the two pulleys 42 are respectively slidably arranged in two opposite surrounding slide grooves 214; the two cross roller assemblies 43 are symmetrically arranged at both ends of the first connecting plate 41 away from the pulley 42 with the center of the first connecting plate 41 as the axis; the second connecting plate 44 is arranged on the side of the cross roller assembly 43 away from the first connecting plate 41, and the second connecting plate 44 is connected to the two cross roller assemblies 43; the ejector rod assembly 45 is arranged at the end of the second connecting plate 44 away from the cross roller assembly 43.

[0086] Furthermore, since the first connecting plate 41 is rotatably connected to the connecting rod 32, it means that the connecting rod 32 rotates around the cam 21, driving the first connecting plate 32 to rotate around the cam 21, so that the ejection mechanism 4 moves as the connecting rod 32 rotates around the cam 21; the two pulleys 42 are respectively located on both sides of one end of the first connecting plate 41, and are respectively slidably arranged in two opposite surrounding slide grooves 214; so that the pulley 42 can slide along the trajectory of the surrounding slide groove 214, and in the sliding process, since the first connecting plate 41 and the pulley 42 are rotatably connected, the first connecting plate 41 can rotate around the pulley 42, so that as the trajectory of the surrounding slide groove 214 changes, the angle of the first connecting plate 41 also changes The two cross roller assemblies 43 are symmetrically arranged at the two ends of the first connecting plate 41 away from the pulley 42 with the center of the first connecting plate 41 as the axis; the second connecting plate 44 is arranged on the side of the cross roller assembly 43 away from the first connecting plate 41, and the second connecting plate 44 is connected to the two cross roller assemblies 43; the ejector rod assembly 45 is arranged on the end of the second connecting plate 44 away from the cross roller assembly 43, and the angle of the ejector rod assembly 45 in the ejection mechanism 4 can be controlled by changing the angle of the first connecting plate 4, so that when the ejector rod assembly 45 is located at a distance from the upper end of the protrusion of the cam 21 (before entering the seedling tray conveying mechanism 5) to a distance from the lower end of the protrusion (after leaving the seedling tray conveying mechanism 5), the ejector rod assembly 45 always maintains contact with the seedling tray conveying mechanism 5. When the push rod assembly 45 starts to enter the seedling tray conveying mechanism 5, the seedlings in the seedling tray conveying mechanism 5 begin to be ejected. As the current push rod assembly 45 continues to move downward, the current push rod assembly 45 will drive some components in the seedling tray conveying mechanism 5 to move downward until the current push rod assembly 45 moves to the position corresponding to the protrusion 21. At this time, the current push rod assembly 45 will move to the deepest part of the seedling tray conveying mechanism 5, and the seedlings in the seedling tray conveying mechanism 5 will be completely ejected. At the same time, the previous push rod assembly 45 (that is, an ejection mechanism 4 that follows the current ejection mechanism 4 and is located above the current ejection mechanism 4) has just started to enter the seedling tray conveying mechanism 5, but then after moving downward, the current push rod assembly 45 located at the protrusion position of the cam 21 The front push rod assembly 45 will gradually retreat from the seedling tray conveying mechanism 5 until it is separated from the seedling tray conveying mechanism 5, and the previous push rod assembly 45 gradually moves to the position corresponding to the protrusion 21. At this time, the vertical distance between the two push rod assemblies 45 gradually increases. By arranging the cross roller assembly 43 on the first connecting plate 41 and the second connecting plate 44, the two push rod assemblies 45 move downward. When the vertical distance between the two push rod assemblies 45 gradually increases, the seedling tray conveying mechanism 5 applies an extrusion force to the push rod assembly 45, and the push rod assembly 45 drives the cross roller assembly 43 to slide relative to each other, so as to control the push rod assembly 45 located at the protruding position of the cam 21 and the previous push rod assembly 45 to move downward at the same time, and the vertical distance between the two remains unchanged.

[0087] It should be noted that the first connecting plate 41 includes an L-shaped plate 411, a rotating hole 412, a step plate 413 and two rotating rods 414; wherein, the L-shaped plate 411 has a transverse plate 4111 and a vertical plate 4112 connected to the transverse plate 4111, and the side of the transverse plate 4111 close to the vertical plate 4112 is connected to the cross roller assembly 43; the rotating hole 412 is arranged on the side of the transverse plate 4111 away from the vertical plate 4112, and the first connecting plate 41 is rotatably connected to the connecting rod 32 through the rotating hole 412; the step plate 413 is arranged on the side of the transverse plate 4111 away from the vertical plate 4112; the two rotating rods 414 are respectively arranged at the two ends of the step plate 413 away from the transverse plate 4111, and the two rotating rods 414 are respectively rotatably connected to the pulley 42.

[0088] Furthermore, by setting the rotating hole 412, the first connecting plate 41 is rotatably connected to the connecting rod 32. When the connecting rod 32 moves, the first connecting plate 41 is driven to move through the rotating hole 412, thereby driving the entire ejection mechanism 4 to move; the step plate 413 is set on the side of the horizontal plate 4111 away from the vertical plate 4112; the two rotating rods 414 are respectively set at the two ends of the side of the step plate 413 away from the horizontal plate 4111, and the two rotating rods 414 are respectively rotatably connected to the pulley 42; the ejector assembly 45 is realized at the protrusion of the cam 21 (cam 21 When the distance from the upper end of the position closest to the seedling tray conveying mechanism 5 (before entering the seedling tray conveying mechanism 5) to the lower end of the protrusion (after leaving the seedling tray conveying mechanism 5), due to the structural design of the surrounding slide groove 214 on the cam 21, the angle of the step plate 413 can change with the change of the trajectory of the surrounding slide groove 214, and then the step plate 413 can be used to control the angle change of the first connecting plate 4, and then the angle of the ejector assembly 45 in the ejection mechanism 4 can be controlled, so that the ejector assembly 45 remains perpendicular to the seedling tray conveying mechanism 5;

[0089] It should be noted that the cross-roller assembly 43 includes a first roller slider 431, a second roller slider 432, a mounting stud 433 and a return torsion spring 434; wherein the first roller slider 431 is arranged close to the vertical plate 4112; the second roller slider 432 is arranged on the side of the first roller slider 431 away from the L-shaped plate 411, and the second roller slider 432 is slidably engaged with the first roller slider 431; the mounting stud 433 is arranged on the side of the first roller slider 431 close to the center of the horizontal plate 4111, one end of the mounting stud 433 is connected to the horizontal plate 4111, and a nut is installed on the other end; the end of the mounting stud 433 away from the horizontal plate 4111 is suspended on the top of the second connecting plate 44; the return torsion spring 434 is arranged around the mounting stud 433, one end of the return torsion spring 434 is in contact with the vertical plate 4112, and the other end is in contact with the inner wall of the second connecting plate 44.

[0090] Furthermore, through the sliding engagement between the first roller slider 431 and the second roller slider 432, it is explained that the first roller slider 431 and the second roller slider 432 are allowed to move relative to each other within a certain range. When the vertical distance between the two push rod assemblies 45 gradually increases from the initial distance, due to the existence of the vertical plate 4112 in the L-shaped plate 411, the second roller slider 432 cannot slide toward one end of the vertical plate 4112 and can only slide in the direction away from the vertical plate 4112. Therefore, the seedling tray conveying mechanism 5 gives the push rod assembly 45 an extrusion force in the direction away from the vertical plate 4112, driving the first connecting plate 41 and the second connecting plate 44 to slide relative to each other in the vertical direction, and one end of the mounting stud 433 is connected to the horizontal plate 4111, and the other end is installed with a nut; The mounting stud 433 is suspended at one end away from the horizontal plate 4111 on the top of the second connecting plate 44; the return torsion spring 434 is arranged around the mounting stud 433, one end of the return torsion spring 434 is in contact with the vertical plate 4112, and the other end is in contact with the inner wall of the second connecting plate 44; so that when the first connecting plate 41 and the second connecting plate 44 slide relative to each other, the inner wall of the second connecting plate 44 will squeeze the return torsion spring 434, thereby giving the return torsion spring 434 an extrusion force, and when the two push rod assemblies 45 move to the bottom of the protrusion of the cam 21, the vertical distance between the two push rod assemblies 45 gradually decreases until it returns to the initial distance, at which time the extrusion force of the return torsion spring 434 is released, and the first roller slider 431 and the second roller slider 432 are reset.

[0091] It should be noted that the push rod assembly 45 includes two pull rods 451 and multiple push rods 452; wherein the two pull rods 451 are respectively arranged at the two ends of the second connecting plate 44 away from the second roller slider 432; the multiple push rods 452 are evenly arranged on the side of the second connecting plate 44 away from the second roller slider 432, and the multiple push rods 452 are arranged between the two pull rods 451.

[0092] Furthermore, the two pull rods 451 of the ejection mechanism 45 are used to pull some components in the seedling tray conveying mechanism 5 downward, and the multiple ejector rods 452 are used to eject the seedlings in the seedling tray conveying mechanism 5; when the ejector rod assembly 45 is located at a distance from the upper end of the protrusion of the cam 21 (the position closest to the seedling tray conveying mechanism 5 in the cam 21) (before entering the seedling tray conveying mechanism 5) to a distance from the lower end of the protrusion (after leaving the seedling tray conveying mechanism 5), due to the structural design of the surrounding slide groove 214 on the cam 21, the angle of the step plate 413 can change with the change of the trajectory of the surrounding slide groove 214, and then the step plate 413 can be used to control the angle change of the first connecting plate 4, and then the angle of the two pull rods 451 and the multiple ejector rods 452 in the ejector rod assembly 45 in the ejection mechanism 4 is controlled, so that the two pull rods 451 and the multiple ejector rods 452 remain perpendicular to the seedling tray conveying mechanism 5.

[0093] It should be noted that the seedling tray conveying mechanism 5 includes a seedling tray track 51, a pot seedling tray 52 and a pressure plate member 53; wherein the seedling tray track 51 is arranged on one side of the housing 1, and slide rails 511 arranged opposite to each other are arranged on both sides of the seedling tray track 51; vertical grooves 512 are arranged on both sides of the seedling tray track 51 facing the protrusion of the cam 21, and the vertical grooves 512 on the same side are connected to the slide rail 511; a plurality of evenly arranged vertical top grooves 513 are arranged between the two vertical grooves 512 The seedling tray 52 is arranged in the seedling tray track 51, and the two ends of the seedling tray 52 are slidably connected with the slide rails 511 on both sides of the seedling tray track 51 respectively. A row of evenly arranged pulling holes 522 are arranged at each end of the seedling tray 52. ​​A plurality of seedling holes 521 arranged in an array are arranged on the seedling tray 52, and the seedling holes 521 are all arranged between the two rows of pulling holes 522; a pressure plate 53 is arranged on one side of the seedling tray 52, and the pressure plate 53 contacts and squeezes the seedling tray 52.

[0094] Furthermore, the seedling tray track 51 is firmly arranged on one side of the shell 1, providing a fixed running path for the seedling tray 52 in the pot; the slide rails 511 on both sides of the seedling tray track 51 provide a sliding connection track for the seedling tray 52 in the pot, ensuring the stable movement of the seedling tray 52 in the vertical direction; the vertical pull grooves 512 arranged on both sides of the seedling tray track 51 facing the protrusion of the cam 21 are connected with the slide rails 511 on the same side; the pull rod 451 in the top rod assembly 45 vertically enters the pull hole 522 in the seedling tray 52 in the pot, and moves downward through the pull rod 451, driving the seedling tray 52 in the pot downward; at the same time, the top rod 452 in the top rod assembly 45 vertically enters the seedling hole 52 in the seedling tray 52 in the pot through the vertical top groove 513 1; when the pull rod 451 and the push rod 452 are located at a distance from the upper end of the protrusion of the cam 21, the pull rod 451 begins to vertically enter the pull hole 522 in the pot seedling tray 52 through the vertical pull groove 512, and at the same time, the push rod 452 at the same level begins to vertically enter the seedling hole 521 in the pot seedling tray 52 through the vertical top groove 513; as the chain transmission mechanism 3 moves downward with the ejection mechanism 4, the pull rod 451 pulls the pot seedling tray 52 to slide downward in the slide rails 511 on both sides of the seedling tray track 51; the depth of the push rod 452 entering the seedling hole 521 gradually increases, and the seedlings in the seedling hole 521 are gradually ejected. As the chain transmission mechanism 3 continues to rotate, the pull rod 451 pulls the pot seedling tray 52 to continue to slide downward in the slide rails 511 on both sides of the seedling tray track 51 , until the pull rod 451 and the push rod 452 move to the raised position of the cam 21 (that is, the extreme position of the cam 21, the position of the cam 21 closest to the seedling tray conveying mechanism 5), at this time the push rod 452 will move to the deepest part of the seedling hole 521 in the seedling tray 52 of the pot body, and the seedlings corresponding to the current push rod 452 in the seedling hole 521 will be completely ejected, and the pull rod 451 and the push rod 452 of the previous ejection mechanism 4 of the current ejection mechanism 4 (that is, an ejection mechanism 4 immediately following the current ejection mechanism 4 and located above the current ejection mechanism 4) respectively begin to enter the previous group of pulling holes 522 and seedling holes 521 above the current seedling holes 521 and pulling holes 522 (the positions in the upper row of the current seedling holes 521 and pulling holes 522); The transmission mechanism 3 then moves, and the pull rod 451 in the current ejection mechanism 4 continues to drive the pot body seedling tray 52 to slide downward in the slide rails 511 on both sides of the seedling tray track 51. At this time, the pull rod 451 and the push rod 452 in the current ejection mechanism 4 will gradually retreat from the corresponding pull holes 522 and seedling holes 521 in the pot body seedling tray 52 until they are separated from the pot body seedling tray 52. ​​However, the pull rod 451 and the push rod 452 of the previous ejection mechanism 4 (that is, an ejection mechanism 4 that follows the current ejection mechanism 4 and is located above the current ejection mechanism 4) repeat the movement of the pull rod 451 and the push rod 452 in the current ejection mechanism 4, and the seedlings in the pot body seedling tray 52 corresponding to the previous ejection mechanism 4 will be completely ejected, thereby realizing continuous ejection of the seedlings;Since the seedling tray 52 has its own weight, the pressing plate 53 is arranged on one side of the seedling tray 52, and the pressing plate 53 contacts and squeezes the seedling tray 52, so that the seedling tray 52 is squeezed between the slide rails 511, thereby controlling the seedling tray 52 to not move due to its own gravity. ;

[0095] According to a continuous ejection device of this embodiment, the working process is as follows:

[0096] The driving mechanism 6 moves, driving the rotating shaft 22 connected thereto to rotate in the cam 21, thereby driving the sprockets 23 at both ends of the rotating shaft 22 connected to the driving mechanism 6 to rotate simultaneously. As the sprockets 23 rotate, the two chains 31 are driven to move, thereby passing through the other two pairs of sprockets 23, so that the two chains 31 are cyclically rotated around the three pairs of sprockets 23, driving the multiple connecting rods 32 evenly arranged between the two chains 23 to cyclically rotate around the surrounding grooves 213 on the surrounding surface 212 of the cam 21. Since the ejection assembly 4 is rotatably connected to the connecting rod 32 through the rotating hole 412, the ejection mechanism 4 is driven to cyclically rotate around the surrounding grooves 213 on the surrounding surface 212 of the cam 21 through the movement of the connecting rod 32, and the pulley 4 in the ejection mechanism 4 2 slides along the track of the surrounding slide groove 214; since the track of the surrounding slide groove 214 is the same as the track of the surrounding surface 212 of the cam 21, through the track design of the surrounding surface 212, while rotating, it is slidably connected in the surrounding slide groove 214 through the pulley 42, and the rotating hole 412 is rotatably connected with the connecting rod 32, thereby achieving the purpose of controlling the angle of the pull rod 451 and the push rod 452 in the push rod assembly 45, so that the pull rod 451 and the push rod 452 are located at a distance from the upper end of the protrusion of the cam 21 (before the pull rod 451 and the push rod 452 enter the pot body seedling tray 52) to a distance from the lower end of the protrusion (after the pull rod 451 and the push rod 452 leave the pot body seedling tray 52), The pull rod 451 and the push rod 452 always maintain the same angle with the pot body seedling tray 5 2 vertically; when the pull rod 451 and the push rod 452 are located at a distance from the upper end of the cam 21 protrusion, the pull rod 451 begins to vertically enter the pull hole 522 in the pot body seedling tray 52 through the vertical pull groove 512, and at the same time, the push rod 452 at the same level begins to vertically enter the seedling hole 521 in the pot body seedling tray 52 through the vertical top groove 513; as the chain transmission mechanism 3 moves downward with the ejection mechanism 4, the pull rod 451 pulls the pot body seedling tray 52 to slide downward in the slide rails 511 on both sides of the seedling tray track 51; the depth of the push rod 452 entering the seedling hole 521 gradually increases, and the seedlings in the seedling hole 521 are gradually ejected. As the chain transmission mechanism 3 continues to rotate, the pull rod 451 pulls the pot body seedling tray 52 to continue downward in the slide rails 511 on both sides of the seedling tray track 51 Slide until the pull rod 451 and the push rod 452 move to the raised position of the cam 21 (that is, the extreme position of the cam 21, the position of the cam 21 closest to the seedling tray conveying mechanism 5), at this time, the push rod 452 will move to the deepest part of the seedling hole 521 in the seedling tray 52 of the pot body, and the seedlings corresponding to the current push rod 452 in the seedling hole 521 will be completely ejected, and the pull rod 451 and the push rod 452 located at the previous ejection mechanism 4 of the current ejection mechanism 4 (that is, an ejection mechanism 4 immediately following the current ejection mechanism 4 and located above the current ejection mechanism 4) respectively begin to enter the previous group of pulling holes 522 and seedling holes 521 (positions in a row above the current seedling holes 521 and pulling holes 522) above the current seedling holes 521 and pulling holes 522;The chain transmission mechanism 3 then moves, and the pull rod 451 in the current ejection mechanism 4 continues to drive the seedling tray 52 in the pot body to slide downward in the slide rails 511 on both sides of the seedling tray track 51. At this time, the pull rod 451 and the ejector rod 452 in the current ejection mechanism 4 will gradually retreat from the corresponding pull holes 522 and seedling holes 521 in the pot body seedling tray 52 until they are separated from the pot body seedling tray 52. ​​However, the pull rod 451 of the previous ejection mechanism 4 (that is, the ejection mechanism 4 that follows the current ejection mechanism 4 and is located above the current ejection mechanism 4) The movement of the pull rod 451 and the push rod 452 in the current ejection mechanism 4 is repeated, and the vertical distance between the two push rod assemblies 45 gradually increases. However, the vertical distance between the pull rods 451 in the two push rod assemblies 45 is regulated by the up and down sliding of the cross roller assembly 43, so that the vertical distance between the pull rods 451 in the two push rod assemblies 45 remains unchanged and is the same as the distance between the upper and lower seedling holes 521 in the pot seedling tray 52; thereby, the seedlings in the seedling holes 521 in the pot seedling tray 52 are continuously ejected. ;

[0097] According to a continuous ejection device of this embodiment, the beneficial effects are as follows:

[0098] The cam transmission mechanism rotates, driving the chain transmission mechanism to rotate, thereby driving the ejection mechanism evenly arranged on the chain transmission mechanism to rotate around the cam, so that the ejection mechanism can continuously eject the seedlings in the seedling tray conveying mechanism; the cam transmission mechanism is driven to rotate by the driving mechanism, thereby realizing the automation of the ejection mechanism, so that the device can realize automatic seedling removal. Compared with traditional manual seedling removal, the seedling removal efficiency of the device of the present application is greatly improved.

[0099] Example 2

[0100] A pot seedling transplanter, comprising a continuous ejection device in embodiment 1;

[0101] According to the pot seedling transplanter of this embodiment, since it has a continuous ejection device in the embodiment, it has all the beneficial effects of the pot seedling transplanter in embodiment 1, which will not be repeated here.

[0102] In this application, the term "plurality" means two or more than two, unless otherwise clearly defined. The terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0103] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0104] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A continuous ejection device, characterized in that: include: Housing (1); A cam transmission mechanism (2) comprising a cam (21), wherein the cam transmission mechanism (2) is arranged in the housing (1), and both ends of the cam transmission mechanism (2) are rotatably connected to the housing (1); A chain transmission mechanism (3) is disposed around the cam transmission mechanism (2), and two ends of the chain transmission mechanism (3) are drivingly connected to two ends of the cam transmission mechanism (2); The ejection mechanism (4) is evenly arranged on the chain transmission mechanism (3), and the ejection mechanism (4) is rotationally connected to the chain transmission mechanism (3); the ejection mechanism (4) is also movably connected to the surface of the cam (21); A seedling tray conveying mechanism (5) is arranged on one side of the housing (1), and the seedling tray conveying mechanism (5) faces the protrusion of the cam (21); A driving mechanism (6) is arranged on one side of the housing (1), and the driving mechanism (6) is connected to the cam transmission mechanism (2).

2. A continuous ejection device according to claim 1, characterized in that: The cam (21) has two oppositely disposed flat surfaces (211) and a surrounding surface (212) disposed between the two flat surfaces (211); the protrusion of the cam (21) is located on the surrounding surface (212), and the cam (21) further comprises: A surrounding groove (213) is arranged on the surrounding surface (212) in a surrounding manner, and the surrounding groove (213) has the same shape as the surrounding surface (212); Two surrounding slide grooves (214) are respectively arranged on two opposite inner side walls of the surrounding groove (213), and the two surrounding slide grooves (214) are arranged opposite to each other; the two surrounding slide grooves (214) are of the same shape as the surrounding surface (212); the two surrounding slide grooves (214) are both slidably connected to the ejection mechanism (4); Three mounting holes (215) are arranged through the flat surface (211), and the three mounting holes (215) are respectively located at the protrusion and two ends of the flat surface (211).

3. A continuous ejection device according to claim 2, characterized in that: The cam transmission mechanism (2) further comprises: A rotating shaft (22) is arranged in the mounting hole (215), each mounting hole (215) is rotatably connected to one rotating shaft (22), and one end of any rotating shaft (22) passes through the housing (1) and is connected to the driving mechanism (6); Sprocket wheels (23) are arranged at both ends of the rotating shaft (22), and each of the two ends of the rotating shaft (22) is provided with a sprocket wheel (23); the sprocket wheels (23) are all connected to the chain transmission mechanism (3); Both ends of each rotating shaft (22) extend from the sprocket (23) to the housing (1), and both ends of each rotating shaft (22) are rotatably connected to the housing (1).

4. A continuous ejection device according to claim 3, characterized in that: The chain transmission mechanism (3) comprises: Two chains (31) are respectively arranged on the sprockets (23) on both sides of the cam (21), and the chain (31) and each sprocket (23) on the same side of the cam (21) are in transmission connection; the chain (31) includes a plurality of nodes (311), and the distance between any two adjacent nodes (311) is equal; A plurality of connecting rods (32) are arranged between the two chains (31), the two ends of the connecting rods (32) are respectively connected to two opposite nodes (311) in the two chains (31), and the distance between any two adjacent connecting rods (32) is equal; the connecting rods (32) are rotatably connected to the ejection mechanism (4).

5. A continuous ejection device according to claim 4, characterized in that: The ejection mechanism (4) comprises: A first connecting plate (41) rotatably connected to the connecting rod (32); Two pulleys (42) are respectively arranged on both sides of one end of the first connecting plate (41), and the two pulleys (42) are respectively slidably arranged in two opposite surrounding sliding grooves (214); Two cross roller assemblies (43), the two cross roller assemblies (43) are symmetrically arranged at two ends of the first connecting plate (41) away from the pulley (42) with the center of the first connecting plate (41) as an axis; A second connecting plate (44) is arranged on a side of the cross roller assembly (43) away from the first connecting plate (41), and the second connecting plate (44) is connected to the two cross roller assemblies (43); A push rod assembly (45) is arranged at an end of the second connecting plate (44) away from the cross roller assembly (43).

6. A continuous ejection device according to claim 5, characterized in that: The first connecting plate (41) comprises: An L-shaped plate (411) comprising a transverse plate (4111) and a vertical plate (4112) connected to the transverse plate (4111), wherein a side of the transverse plate (4111) close to the vertical plate (4112) is connected to the cross roller assembly (43); A rotating hole (412) is arranged on a side of the horizontal plate (4111) away from the vertical plate (4112), and the first connecting plate (41) is rotatably connected to the connecting rod (32) through the rotating hole (412); A step plate (413) is arranged on a side of the transverse plate (4111) away from the vertical plate (4112); Two rotating rods (414) are respectively arranged at two ends of the step plate (413) away from the horizontal plate (4111), and the two rotating rods (414) are respectively connected to the pulley (42) in rotation.

7. A continuous ejection device according to claim 6, characterized in that: The cross roller assembly (43) comprises: A first roller slider (431) is disposed on the vertical plate (4112) close to the vertical plate (4112); A second roller slider (432) is arranged on a side of the first roller slider (431) away from the L-shaped plate (411), and the second roller slider (432) is slidably engaged with the first roller slider (431); A mounting stud (433) is arranged on one side of the first roller slider (431) close to the center of the transverse plate (4111), one end of the mounting stud (433) is connected to the transverse plate (4111), and a nut is installed on the other end; one end of the mounting stud (433) away from the transverse plate (4111) is suspended on the top of the second connecting plate (44); A return torsion spring (434) is disposed around the mounting stud (433), one end of the return torsion spring (434) is in contact with the vertical plate (4112), and the other end is in contact with the inner wall of the second connecting plate (44).

8. A continuous ejection device according to claim 7, characterized in that: The push rod assembly (45) comprises: Two pull rods (451) are respectively arranged at two ends of the second connecting plate (44) on a side away from the second roller slider (432); A plurality of push rods (452) are evenly arranged on a side of the second connecting plate (44) away from the second roller slider (432), and the plurality of push rods (452) are arranged between the two pull rods (451).

9. A continuous ejection device according to claim 8, characterized in that: The seedling tray conveying mechanism (5) comprises: A seedling tray track (51) is arranged on one side of the housing (1), and oppositely arranged slide rails (511) are arranged on both sides of the seedling tray track (51); vertical grooves (512) are arranged on both sides of the seedling tray track (51) facing the protrusion of the cam (21), and the vertical grooves (512) on the same side are connected to the slide rail (511); a plurality of evenly arranged vertical top grooves (513) are arranged between the two vertical grooves (512); The seedling tray (52) is arranged in the seedling tray track (51), and the two ends of the seedling tray (52) are respectively slidably connected to the slide rails (511) on both sides of the seedling tray track (51), and a row of evenly arranged pulling holes (522) are respectively arranged at the two ends of the seedling tray (52), and a plurality of seedling holes (521) arranged in an array are arranged on the seedling tray (52), and the seedling holes (521) are all arranged between two rows of pulling holes (522); The pressing plate member (53) is arranged on one side of the pot body seedling tray (52), and the pressing plate member (53) contacts and presses the pot body seedling tray (52).

10. A pot seedling transplanter, characterized in that: A continuous ejection device comprising any one of claims 1 to 9.

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