Seedling taking mechanism and seedling taking method for transplanter

Abstract

The invention provides a seedling taking mechanism and a seedling taking method for a transplanter, and belongs to the technical field of agricultural machinery, the seedling taking mechanism comprises a lifting assembly, an elastic supporting assembly, a clamping assembly and a carding assembly, the elastic supporting assembly and the clamping assembly are mounted at the output end of the lifting assembly and are controlled by the lifting assembly to move up and down, and the carding assembly is mounted at the output end of the lifting assembly; the elastic supporting assembly is located on the outer side of the clamping assembly, and the elastic supporting assembly acts on the upper surface of the hole tray when moving downwards. Compared with the prior art, the seedling pot and the plug tray can be quickly separated during seedling taking operation, so that seedling taking convenience and seedling taking efficiency are improved, laterally-extending seedling bodies can be combed in the seedling taking process, the seedling bodies in the seedling taking pot are separated from the seedling bodies in the adjacent seedling pot, and seedling taking efficiency is improved. Therefore, the seedling bodies are prevented from being broken and damaged due to intertwining of the seedling bodies in the seedling taking process, and the seedling taking effect is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a seedling taking mechanism and a seedling taking method for a transplanter. Background Art

[0002] Vegetable transplanting currently basically adopts seedling transplanting technology, which can make full use of light and heat resources, improve crop multiple cropping index, and has the comprehensive benefits of compensating for climate and advancing the crop growth period.

[0003] At present, vegetable transplanting operations involve steps such as seedling removal, seedling casting, and planting. The implementation of the above steps depends on a transplanter. In the prior art, when a transplanter is used to remove seedlings from the seedling pots on the plug tray, on the one hand, due to the close contact between the seedling pots and the plug tray, it is inconvenient to separate the seedling pots from the plug tray when removing the seedlings. On the other hand, the seedlings in the removed seedling pots often get entangled with the seedlings in the adjacent seedling pots, which makes it easy for the removed seedlings and the adjacent seedlings to break and be damaged during the seedling removal process, thereby affecting the survival rate of the seedlings when they are subsequently planted. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a seedling taking mechanism and a seedling taking method for a transplanter.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A seedling taking mechanism for a transplanter comprises a lifting component, an elastic support component, a clamping component and a combing component. The elastic support assembly and the clamping assembly are installed at the output end of the lifting assembly and are controlled by the lifting assembly to move up and down. The elastic support component is located outside the clamping component, and acts on the upper surface of the plug tray when the elastic support component moves downward, so as to apply an elastic support force to the plug tray. When the clamping assembly moves downward, it acts on the edge of the seedling pot and clamps the seedling pot. The combing component is arranged on one side of the elastic support component. When the elastic support component moves downward, the combing component is used to comb the seedlings extending to the outside of the seedling pot, so that the seedlings extending to the outside of the current seedling pot are separated from the seedlings in the adjacent seedling pot.

[0006] As a further improvement of the present invention: the lifting assembly includes a lifting cylinder and a lifting plate, The lifting plate is fixedly arranged at the output end of the lifting cylinder, and the clamping assembly includes support rods and pneumatic clamps. The support rods are provided with several groups, and several of the support rods are fixedly arranged on the side of the lifting plate away from the lifting cylinder. Several of the support rods are distributed in a ring-shaped interval on the side of the lifting plate away from the lifting cylinder, and a group of pneumatic clamps are installed on the end of each group of support rods away from the lifting plate.

[0007] As a further improvement of the present invention: the elastic support assembly includes a connecting rod, a piston rod, a supporting sleeve and an elastic member. The support sleeves are provided in a plurality of groups with the same number as the support rods, and the support sleeves are arranged one by one on the outside of the support rods. A group of piston rods are movably inserted at the upper end of each group of the support sleeves, and the side walls of the upper ends of the piston rods are fixedly connected to the support rods through a group of connecting rods. One end of each group of piston rods located inside the corresponding support sleeves is connected to the inner wall of the support sleeve through a group of elastic parts, and the elastic parts are used to provide elastic support to the support sleeves.

[0008] As a further improvement of the present invention: the elastic member is a spring or a metal spring.

[0009] As a further improvement of the present invention: the combing component includes a gathering pipe, an air delivery pipe and a flexible air bag, The convergence pipe is fixedly arranged on the side wall of the support sleeve, and a groove is opened on the side wall of the convergence pipe along the length direction. The flexible airbag is arranged inside the convergence pipe, and one end of the gas delivery pipe is connected with the inner cavity of the support sleeve, and the other end extends into the convergence pipe and is connected with the inner cavity of the flexible airbag.

[0010] As a further improvement of the present invention: the convergence pipe and the support sleeve are perpendicular to each other, the convergence pipe is distributed radially along the seedling pot, and the notch is opened at the upper position of the convergence pipe.

[0011] A seedling taking method adopts the above-mentioned seedling taking mechanism for a transplanter, and the method comprises the following steps: When performing the seedling retrieval operation, the lifting assembly, the elastic support assembly, the clamping assembly and the combing assembly are moved above the hole tray as a whole, and the clamping assembly is adjusted to a position directly above the seedling pot to be retrieved. Subsequently, the lifting assembly drives the elastic support assembly and the clamping assembly to move downward as a whole. When the elastic support assembly moves downward, it acts on the upper surface of the hole tray, thereby applying an elastic supporting force to the hole tray. When the clamping assembly moves downward, it acts on the upper edge of the seedling pot, thereby clamping the seedling pot. Subsequently, the lifting assembly drives the elastic support assembly and the clamping assembly to move upward, and the clamping assembly takes the clamped seedling pot away from the hole tray, thereby realizing the seedling retrieval operation.

[0012] Compared with the prior art, the present invention has the following beneficial effects: Compared with the prior art, the embodiments of the present invention can achieve rapid separation of the seedling pot and the plug tray during seedling retrieval, thereby improving the convenience and efficiency of seedling retrieval, and can also comb the laterally extending seedlings during the seedling retrieval process, so that the seedlings in the taken seedling pot are separated from the seedlings in the adjacent seedling pots, thereby avoiding seedling breakage and damage caused by mutual entanglement of the seedlings during the seedling retrieval process, thereby improving the seedling retrieval effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a seedling taking mechanism for a transplanter; Figure 2 It is a structural schematic diagram of a seedling picking mechanism for a transplanter in a seedling picking state; Figure 3 for Figure 1 A magnified schematic diagram of the middle A area; Figure 4 for Figure 2 A magnified schematic diagram of the middle B area; In the figure: 10-lifting assembly, 101-lifting cylinder, 102-lifting plate, 20-elastic support assembly, 201-connecting rod, 202-piston rod, 203-support sleeve, 204-elastic member, 30-clamping assembly, 301-support rod, 302-pneumatic clamp, 40-combing assembly, 401-condensing pipe, 4011-slot, 402-gas pipeline, 403-flexible airbag, 50-hole tray, 501-seedling pot. DETAILED DESCRIPTION

[0014] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0015] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0016] See also Figure 1 as well as Figure 2The present embodiment provides a seedling taking mechanism for a transplanter, comprising a lifting component 10, an elastic support component 20, a clamping component 30 and a combing component 40, wherein the elastic support component 20 and the clamping component 30 are installed at the output end of the lifting component 10 and are controlled by the lifting component 10 to move up and down, the elastic support component 20 is located at the outside of the clamping component 30, and when the elastic support component 20 moves down, it acts on the upper surface of the plug tray 50 to apply an elastic supporting force to the plug tray 50, and when the clamping component 30 moves down, it acts on the edge of the seedling pot 501 and clamps the seedling pot 501, and the combing component 40 is arranged on one side of the elastic support component 20, and when the elastic support component 20 moves down, the combing component 40 is used to comb the seedling body extending to the outside of the seedling pot 501, so that the seedling body extending to the outside of the current seedling pot 501 is separated from the seedling body in the adjacent seedling pot 501.

[0017] When the seedling-taking operation is performed, the lifting assembly 10, the elastic support assembly 20, the clamping assembly 30 and the combing assembly 40 can be moved as a whole to above the plug tray 50, and the clamping assembly 30 is adjusted to a position just above the seedling pot 501 to be taken. Then, the lifting assembly 10 drives the elastic support assembly 20 and the clamping assembly 30 to move downward as a whole. When the elastic support assembly 20 moves downward, it acts on the upper surface of the plug tray 50, thereby applying an elastic supporting force to the plug tray 50. When the clamping assembly 30 moves downward, it acts on the upper edge of the seedling pot 501, thereby clamping the seedling pot 50. Then, the lifting assembly 10 drives the elastic support assembly 20 and the clamping assembly 30 to move upward, and the clamping assembly 30 brings the clamped seedling pot 501 away from the plug tray 50, thereby realizing the seedling-taking operation. The elastic support of the plug tray 50 by the elastic support component 20 can give the plug tray 50 a downward thrust, thereby preventing the plug tray 50 from moving up with the seedling pot 50, thereby ensuring the convenient separation of the seedling pot 501 and the plug tray 50. In addition, when the elastic support component 20 moves downward, the combing component 40 is used to comb the seedlings extending to the outside of the current seedling pot 501, so that the seedlings extending to the outside of the current seedling pot 501 are separated from the seedlings in the adjacent seedling pot 501, thereby eliminating the state of entanglement between the seedlings in the adjacent seedling pots 501, so as to prevent the seedlings in the current seedling pot 50 from being broken due to the entanglement of the seedlings in the adjacent seedling pots 501 when the clamping component 30 lifts the seedling pot 50, thereby ensuring the integrity of the seedlings when they are taken out and improving the survival rate during subsequent transfer.

[0018] See also Figure 1In one embodiment, the lifting assembly 10 includes a lifting cylinder 101 and a lifting plate 102, and the lifting plate 102 is fixedly arranged at the output end of the lifting cylinder 101. The clamping assembly 30 includes a support rod 301 and a pneumatic clamp 302. The support rod 301 is provided with a plurality of groups, and a plurality of the support rods 301 are fixedly arranged on a side of the lifting plate 101 away from the lifting cylinder 101. The plurality of the support rods 301 are distributed in a ring-shaped manner on a side of the lifting plate 102 away from the lifting cylinder 101, and a group of the pneumatic clamps 302 are installed at one end of each group of the support rods 301 away from the lifting plate 102.

[0019] When the lifting assembly 30 reaches the top of the seedling pot 501 to be taken, the lifting cylinder 101 extends, thereby driving the lifting plate 102 to move downward, and the lifting plate 102 drives the support rods 301 and the pneumatic clamps 302 to move downward, and the pneumatic clamps 302 act on the upper edge of the seedling pot 501 when moving downward, thereby clamping the seedling pot 501. After the seedling pot 501 is clamped, the lifting cylinder 101 retracts, thereby driving the lifting plate 102 to move upward, and the lifting plate 102 drives the support rods 301 and the pneumatic clamps 302 to move upward, and the pneumatic clamps 302 lift the clamped seedling pot 501 to realize the seedling taking operation.

[0020] See also Figure 1 , Figure 2 And 4. In one embodiment, the elastic support assembly 20 includes a connecting rod 201, a piston rod 202, a support sleeve 203 and an elastic member 204. The support sleeves 203 are provided in a plurality of groups with the same number as the support rods 301. The plurality of support sleeves 203 are arranged one-to-one on the outside of the plurality of support rods 301. A group of piston rods 202 is movably inserted at the upper end of each group of support sleeves 203. The upper end side wall of the piston rod 202 is fixedly connected to the support rod 301 through a group of connecting rods 201. The end of each group of piston rods 202 located inside the corresponding support sleeve 203 is connected to the inner wall of the support sleeve 203 through a group of elastic members 204. The elastic member 204 is used to provide elastic support to the support sleeve 203.

[0021] When the lifting cylinder 101 is extended to drive the support rods 301 to move downward through the lifting plate 102, the support rods 301 can drive the piston rods 202 and the support sleeves 203 to move downward synchronously through the connecting rods 201. The support sleeves 203 act on the upper surface of the plug tray 50 before the pneumatic clamps 302, and then shorten compared to the corresponding piston rods 202, and the elastic member 204 is compressed. When the elastic member 204 is compressed to a certain extent, the pneumatic clamps 302 at one end of the support rods 301 act on the upper edge of the seedling pot 501 and clamp the seedling pot 501. When the lifting cylinder 101 is subsequently retracted to drive the support rods 301 to move upward, the pneumatic clamps 302 lift the clamped seedling pot 501. At the same time, the elastic supporting effect of the elastic member 204 on the support sleeve 203 enables the plug tray 50 to obtain a downward thrust, so as to facilitate the smooth separation of the seedling pot 501 from the plug tray 50.

[0022] In one embodiment, the elastic member 204 may be a spring or a metal spring, which is not limited here.

[0023] See also Figure 3 as well as Figure 4 In one embodiment, the combing component 40 includes a convergence pipe 401, an air supply pipe 402 and a flexible airbag 403. The convergence pipe 401 is fixedly arranged on the side wall of the support sleeve 203. The side wall of the convergence pipe 401 is provided with a groove 4011 along the length direction. The flexible airbag 403 is arranged inside the convergence pipe 401. One end of the air supply pipe 402 is connected to the inner cavity of the support sleeve 203, and the other end extends to the inside of the convergence pipe 401 and is connected to the inner cavity of the flexible airbag 403.

[0024] When the support sleeve 203 acts on the upper surface of the hole tray 50, the piston rod 202 moves toward the inside of the support sleeve 203, the elastic member 204 is compressed, and the piston rod 202 presses the air inside the support sleeve 203 through the air supply pipe 402 to the flexible air bag 403 located inside the convergence pipe 401, thereby driving the flexible air bag 403 to expand. When the flexible air bag 403 expands, a part of it extends from the slot 4011 and continues to expand outside the convergence pipe 401. The continuously expanding flexible air bag 403 can act on the seedling body extending from the current seedling pot 501 toward the adjacent seedling pot 50, thereby pushing the seedling body in the current seedling pot 501, so that the seedling body in the current seedling pot 501 is separated from the seedling body in the adjacent seedling pot 50, thereby releasing the entanglement and entanglement state between the seedling body in the current seedling pot 501 and the seedling body in the adjacent seedling pot 50.

[0025] See also Figure 4In one embodiment, the convergence pipe 401 and the support sleeve 203 are perpendicular to each other, the convergence pipe 401 is radially distributed along the seedling pot 501, and the notch 4011 is opened at the upper position of the convergence pipe 401.

[0026] When the support sleeve 203 moves downward and passes between the laterally extending seedlings, the convergence pipe 401 arranged radially along the seedling pot 501 does not cause downward pressure on the laterally extending seedlings, but can more conveniently cross the laterally extending seedlings and move to a position below the seedlings. When the piston rod 202 then moves downward to press the air inside the support sleeve 203 into the flexible airbag 403 via the air supply pipe 402, part of the flexible airbag 403 can extend from the slot 4011 above the convergence pipe 401 and expand upward. The upwardly expanded flexible airbag 403 pushes the laterally extending seedlings upward, so that the seedlings in the current seedling pot 501 can be conveniently separated from the seedlings in the adjacent seedling pot 50.

[0027] In one embodiment, a seedling picking method for a seedling picking mechanism of a transplanter is provided, the method comprising the following steps: When performing the seedling retrieval operation, the lifting component 10, the elastic support component 20, the clamping component 30 and the combing component 40 are moved as a whole to above the plug tray 50, and the clamping component 30 is adjusted to a position directly above the seedling pot 501 to be taken. Then, the lifting component 10 drives the elastic support component 20 and the clamping component 30 to move downward as a whole. When the elastic support component 20 moves downward, it acts on the upper surface of the plug tray 50, thereby applying an elastic supporting force to the plug tray 50. When the clamping component 30 moves downward, it acts on the upper edge of the seedling pot 501, thereby clamping the seedling pot 50. Then, the lifting component 10 drives the elastic support component 20 and the clamping component 30 to move upward, and the clamping component 30 takes the clamped seedling pot 501 away from the plug tray 50, thereby realizing the seedling retrieval operation.

[0028] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A seedling taking mechanism for a transplanter, characterized in that: It includes a lifting component, an elastic support component, a clamping component and a combing component. The elastic support assembly and the clamping assembly are installed at the output end of the lifting assembly and are controlled by the lifting assembly to move up and down. The elastic support component is located outside the clamping component, and acts on the upper surface of the plug tray when the elastic support component moves downward, so as to apply an elastic support force to the plug tray. When the clamping assembly moves downward, it acts on the edge of the seedling pot and clamps the seedling pot. The combing component is arranged on one side of the elastic support component. When the elastic support component moves downward, the combing component is used to comb the seedlings extending to the outside of the seedling pot, so that the seedlings extending to the outside of the current seedling pot are separated from the seedlings in the adjacent seedling pot.

2. A seedling taking mechanism for a transplanter according to claim 1, characterized in that: The lifting assembly includes a lifting cylinder and a lifting plate. The lifting plate is fixedly arranged at the output end of the lifting cylinder, and the clamping assembly includes support rods and pneumatic clamps. The support rods are provided with several groups, and several of the support rods are fixedly arranged on the side of the lifting plate away from the lifting cylinder. Several of the support rods are distributed in a ring-shaped interval on the side of the lifting plate away from the lifting cylinder, and a group of pneumatic clamps are installed on the end of each group of support rods away from the lifting plate.

3. A seedling taking mechanism for a transplanter according to claim 2, characterized in that: The elastic support assembly includes a connecting rod, a piston rod, a supporting sleeve and an elastic member. The support sleeves are provided in a plurality of groups with the same number as the support rods, and the support sleeves are arranged one by one on the outside of the support rods. A group of piston rods are movably inserted at the upper end of each group of the support sleeves, and the side walls of the upper ends of the piston rods are fixedly connected to the support rods through a group of connecting rods. One end of each group of piston rods located inside the corresponding support sleeves is connected to the inner wall of the support sleeve through a group of elastic parts, and the elastic parts are used to provide elastic support to the support sleeves.

4. A seedling taking mechanism for a transplanter according to claim 3, characterized in that: The elastic member is a spring or a metal spring.

5. The seedling taking mechanism for a transplanter according to claim 3, characterized in that: The combing assembly includes a gathering pipe, an air delivery pipe and a flexible air bag. The convergence pipe is fixedly arranged on the side wall of the support sleeve, and a groove is opened on the side wall of the convergence pipe along the length direction. The flexible airbag is arranged inside the convergence pipe, and one end of the gas delivery pipe is connected with the inner cavity of the support sleeve, and the other end extends into the convergence pipe and is connected with the inner cavity of the flexible airbag.

6. The seedling taking mechanism for a transplanter according to claim 5, characterized in that: The convergence pipe is perpendicular to the support sleeve, the convergence pipe is distributed radially along the seedling pot, and the notch is opened at the upper part of the convergence pipe.

7. A seedling taking method, characterized in that: A seedling taking mechanism for a transplanter as claimed in claim 1 is used, and the method comprises the following steps: When performing the seedling retrieval operation, the lifting assembly, the elastic support assembly, the clamping assembly and the combing assembly are moved above the hole tray as a whole, and the clamping assembly is adjusted to a position directly above the seedling pot to be retrieved. Subsequently, the lifting assembly drives the elastic support assembly and the clamping assembly to move downward as a whole. When the elastic support assembly moves downward, it acts on the upper surface of the hole tray, thereby applying an elastic supporting force to the hole tray. When the clamping assembly moves downward, it acts on the upper edge of the seedling pot, thereby clamping the seedling pot. Subsequently, the lifting assembly drives the elastic support assembly and the clamping assembly to move upward, and the clamping assembly takes the clamped seedling pot away from the hole tray, thereby realizing the seedling retrieval operation.

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