Ejection mechanism for seedlings

Abstract

The utility model discloses a seedling ejection mechanism which comprises a seedling tray transportation structure and a seedling knockout mechanism, the seedling knockout mechanism comprises a plurality of groups of ejector pins and a plurality of groups of lifting structures, each group of ejector pins comprises a plurality of ejector pins, and each ejector pin in each group of ejector pins is aligned with each through hole in a supporting plate. Each group of lifting structures comprises a plurality of lifting structures, each lifting structure controls a corresponding ejector pin to move up and down, and when seedling holes of the seedling tray move to the position over the seedling punching mechanism, the Nth lifting structure in each group of lifting structures controls the Nth ejector pin in each group of ejector pins to ascend, and the Nth thimble in each group of thimbles pushes seedlings in the seedling tray out of the corresponding seedling hole. The seedling ejecting device has the advantages that the structure is simple, seedlings can be continuously ejected out by the ejector pin, the damage to the seedlings when the seedlings are pulled out or clamped can be prevented, the ejected seedlings are ejected to the field in sequence, the seedling ejecting efficiency is high, and the intervals between the ejected seedlings are uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of seedling ejection equipment, in particular to a seedling ejection mechanism. Background Art

[0002] Application No. CN202320730030.2 discloses a seedling clamping device and a seedling shooter for quickly clamping seedlings. The clamping structure can place one or several rows of seedlings on a seedling tray, and then put the seedlings into a seedling shooter tube, which shoots the seedlings out. After the seedlings are clamped out, they must be sent to the clamping structure and rotated a certain angle before they can be sent to the seedling shooter tube. The structure is relatively complicated and the seedling throwing efficiency is low. At the same time, the clamping structure may damage the seedlings, miss the seedlings, or break the seedlings during the process of clamping the seedlings. Utility Model Content

[0003] The technical problem to be solved by the present application is to provide a seedling ejection mechanism in view of the deficiencies of the prior art.

[0004] In order to solve the above technical problems, this application adopts the following technical solutions.

[0005] A seedling ejection mechanism includes a seedling tray transport structure, the seedling tray transport structure is used to drive the seedling tray to move, the seedling tray transport structure includes two parallel chains, a sprocket for driving the chains to rotate, and a support plate arranged between the two parallel chains, the support plate is penetrated by a through hole for the seedling hole of the seedling tray to sit; and further includes:

[0006] A seedling-pushing mechanism is provided below the seedling tray transport structure, the seedling-pushing mechanism comprises a plurality of groups of ejectors and a plurality of groups of lifting structures, each group of ejectors comprises a plurality of ejectors, each ejector in each group of ejectors is aligned with each through hole on the support plate, each group of lifting structures comprises a plurality of lifting structures, each lifting structure controls a corresponding ejector to move up and down, when the seedling hole of the seedling tray moves to just above the seedling-pushing mechanism, the Nth lifting structure in each group of lifting structures controls the Nth ejector in each group of ejectors to rise, and the Nth ejector in each group of ejectors pushes the seedlings in the seedling tray out of the corresponding seedling hole.

[0007] A preferred solution is that the lifting structure is a cylinder, and the Nth cylinder in several groups of cylinders is controlled by the same control valve. When the seedling holes of the seedling tray move to directly above the seedling ejecting mechanism, the Mth control valve controls the Mth cylinder in several groups of cylinders to eject the seedlings in the seedling tray from the seedling holes at corresponding positions.

[0008] A preferred solution is that the seedling ejection mechanism also includes a control board and a driving structure, the driving structure is used to drive the sprocket to rotate, a sensor is provided on one side of the sprocket, the sensor and the driving structure are respectively connected to the control board, and after several groups of ejector pins are ejected in sequence, the driving structure drives the sprocket to rotate one tooth.

[0009] A preferred solution is that the plurality of groups of lifting structures are eight groups of lifting structures, and each group of lifting structures includes ten lifting structures.

[0010] The beneficial effects of the utility model are as follows: the structure is simple, the seedlings can be continuously pushed out by the ejector pin, and because the seedlings are pushed out from the bottom, damage to the seedlings when pulling or clamping the seedlings can be prevented, the pushed out seedlings are shot into the field in sequence, the shooting efficiency is high, and the spacing between the shot seedlings is uniform.

[0011] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specifically cites the preferred embodiments and describes them in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is a three-dimensional diagram of the rice seedling tray transport structure of the utility model;

[0014] Figure 3 It is a three-dimensional diagram of the rice seedling beating mechanism of the utility model when beating out rice seedlings;

[0015] Figure 4 It is a right view of the utility model;

[0016] Figure 5 This is a right side view of the utility model when transporting the seedling tray;

[0017] Figure 6 This is a right side view of the rice seedling discharging mechanism of the utility model when discharging rice seedlings;

[0018] Figure 7 It is a right side view of the rice seedling knocking mechanism in the utility model;

[0019] Figure 8 It is a three-dimensional diagram of the seedling tray in the utility model;

[0020] Fig. 9 It is a partial stereoscopic diagram of the support plate in the utility model. DETAILED DESCRIPTION

[0021] In order to explain the idea and purpose of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] The present application is described in more detail below with reference to the accompanying drawings and embodiments.

[0023] like Figures 1 to 9 As shown, the embodiment of the present application discloses a seedling ejection mechanism, including a seedling tray transport structure 10, the seedling tray transport structure 10 is used to drive the seedling tray 30 to move, the seedling tray transport structure 10 includes two parallel chains 11, a sprocket 12 driving the chain 11 to rotate, and a support plate 13 arranged between the two parallel chains 11, the support plate 13 penetrates a through hole 131 for the seedling hole 32 of the seedling tray 30 to be located; and further includes:

[0024] like Figures 1 to 9 As shown, the seedling knocking mechanism 20 is arranged below the seedling tray transport structure 10, and the seedling knocking mechanism 20 includes a plurality of groups of ejectors 21 and a plurality of groups of lifting structures 22, each group of ejectors 21 includes a plurality of ejectors 21, each ejector 21 in each group of ejectors 21 is aligned with each through hole 131 on the support plate 13, each group of lifting structures 22 includes a plurality of lifting structures 22, and each lifting structure 22 controls a corresponding ejector 21 to move up and down. When the seedling hole 32 of the seedling tray 30 moves to the top of the seedling knocking mechanism 20, the Nth lifting structure 22 in each group of lifting structures 22 controls the Nth ejector 21 in each group of ejectors 21 to rise, and the Nth ejector 21 in each group of ejectors 21 pushes the seedling 31 in the seedling tray 30 out of the corresponding seedling hole 32.

[0025] like Figures 1 to 9 As shown, the seedling tray 30 contains seedlings 31, the seedling tray transport structure 10 is tilted, the seedling tray 30 is supported on the upper surface of the support plate 13, and the chain 11 drives the support plate 13 to move forward. The seedling tray transport structure 10 transports the seedling tray 30 from one end to the other end.

[0026] like Figures 1 to 9As shown, when the seedling holes 32 of the seedling tray 30 move to the top of the seedling ejection mechanism 20, the first lifting structure 22 of each group of lifting structures 22 rises, and the first lifting structure 22 controls the corresponding ejector pin 21 to push the seedlings 31 in the seedling tray 30 out of the corresponding seedling holes 32. At this time, a group of seedlings 31 is pushed out and shot to the field. The first lifting structure 22 of each group of lifting structures 22 descends, and the first lifting structure 22 controls the corresponding ejector pin 21 to descend. The second lifting structure 22 of each group of lifting structures 22 rises, and the second lifting structure 22 controls the corresponding ejector pin 21 to push the seedlings 31 in the seedling tray 30 out of the corresponding seedling holes 32. At this time, a group of seedlings 31 is pushed out and shot to the field. The second lifting structure 22 of each group of lifting structures 22 descends, and the second lifting structure 22 controls the corresponding ejector pin 21 to descend. This process is repeated until the last lifting structure 22 in each group of lifting structures 22 rises, and the last lifting structure 22 controls the corresponding ejector pin 21 to push the seedlings 31 in the seedling tray 30 out of the corresponding seedling holes 32. At this time, a group of seedlings 31 are pushed out and shot into the field, and at this time, all the seedlings 31 in the first row of the seedling tray 30 are pushed out.

[0027] like Figures 1 to 9 As shown, the sprocket 12 drives the chain 11 to rotate one position, and the seedling tray 30 moves one position together with the sprocket 12, and the seedling holes 32 of the second row of the seedling tray 30 move to the top of the seedling discharging mechanism 20.

[0028] like Figures 1 to 9 As shown, the first lifting structure 22 of each group of lifting structures 22 rises, and the first lifting structure 22 controls the corresponding ejector 21 to push the seedlings 31 in the seedling tray 30 out of the corresponding seedling holes 32. At this time, a group of seedlings 31 is pushed out and shot into the field. The first lifting structure 22 of each group of lifting structures 22 descends, and the first lifting structure 22 controls the corresponding ejector 21 to descend. The second lifting structure 22 of each group of lifting structures 22 rises, and the second lifting structure 22 controls the corresponding ejector 21 to push the seedlings 31 in the seedling tray 30 out of the corresponding seedling holes 32. At this time, a group of seedlings 31 is pushed out and shot into the field. The second lifting structure 22 of each group of lifting structures 22 descends, and the second lifting structure 22 controls the corresponding ejector 21 to descend. This process is repeated until the last lifting structure 22 in each group of lifting structures 22 rises, and the last lifting structure 22 controls the corresponding ejector pin 21 to push the seedlings 31 in the seedling tray 30 out of the corresponding seedling holes 32. At this time, a group of seedlings 31 are pushed out and shot into the field, and at this time, all the seedlings 31 in the first row of the seedling tray 30 are pushed out.

[0029] like Figures 1 to 9As shown, the seedlings 31 can be continuously ejected by the ejector pin 21. Since the seedlings 31 are ejected from the bottom, the seedlings 31 can be prevented from being damaged when being pulled out or clamped. The ejected seedlings 31 are shot into the field in sequence, the shooting efficiency is high, and the spacing between the ejected seedlings 31 is uniform.

[0030] like Figures 1 to 9 As shown, the lifting structure 22 is a cylinder, and the Nth cylinder in the plurality of cylinder groups is controlled by the same control valve. When the seedling hole 32 of the seedling tray 30 moves to just above the seedling ejecting mechanism 20, the Mth control valve controls the Mth cylinder in the plurality of cylinder groups to eject the seedlings 31 in the seedling tray 30 from the seedling hole 32 at the corresponding position. The control valve may be a solenoid valve.

[0031] like Figures 1 to 9 As shown, the seedling ejection mechanism also includes a control board and a driving structure, the driving structure is used to drive the sprocket 12 to rotate, a sensor is provided on one side of the sprocket 12, the sensor and the driving structure are respectively connected to the control board, and after several groups of ejector pins 21 are ejected in sequence, the driving structure drives the sprocket 12 to rotate one tooth.

[0032] like Figures 1 to 9 As shown, when all the seedlings 31 in a row of the seedling tray 30 are ejected, the control panel controls the driving structure to drive the sprocket 12 to rotate one position. At this time, the seedling tray 30 moves one position, and the seedling ejecting mechanism 20 ejects all the seedlings 31 in the next row in turn, and this is repeated continuously.

[0033] like Figures 1 to 9 As shown, the plurality of groups of lifting structures 22 are eight groups of lifting structures 22 , and each group of lifting structures 22 includes ten lifting structures 22 .

[0034] The above is a specific implementation of the present utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present utility model. These improvements and modifications are also considered to be within the protection scope of the present utility model.

Claims

1. A seedling ejection mechanism, comprising a seedling tray transport structure, the seedling tray transport structure is used to drive the seedling tray to move, the seedling tray transport structure comprises two parallel chains, a sprocket for driving the chains to rotate, and a support plate arranged between the two parallel chains, the support plate having a through hole through which the seedling holes of the seedling tray are located; characterized in that: Also includes: A seedling-pushing mechanism is provided below the seedling tray transport structure, the seedling-pushing mechanism comprises a plurality of groups of ejectors and a plurality of groups of lifting structures, each group of ejectors comprises a plurality of ejectors, each ejector in each group of ejectors is aligned with each through hole on the support plate, each group of lifting structures comprises a plurality of lifting structures, each lifting structure controls a corresponding ejector to move up and down, when the seedling hole of the seedling tray moves to just above the seedling-pushing mechanism, the Nth lifting structure in each group of lifting structures controls the Nth ejector in each group of ejectors to rise, and the Nth ejector in each group of ejectors pushes the seedlings in the seedling tray out of the corresponding seedling hole.

2. A seedling ejection mechanism according to claim 1, characterized in that: The lifting structure is a cylinder, and the Nth cylinder in several groups of cylinders is controlled by the same control valve. When the seedling holes of the seedling tray move to just above the seedling ejecting mechanism, the Mth control valve controls the Mth cylinder in several groups of cylinders to eject the seedlings in the seedling tray from the seedling holes at the corresponding positions.

3. A seedling ejection mechanism according to claim 1, characterized in that: The seedling ejection mechanism also includes a control board and a driving structure, the driving structure is used to drive the sprocket to rotate, a sensor is provided on one side of the sprocket, the sensor and the driving structure are respectively connected to the control board, and after several groups of ejectors are ejected in sequence, the driving structure drives the sprocket to rotate one tooth.

4. A seedling ejection mechanism according to claim 1, characterized in that: The plurality of groups of lifting structures are eight groups of lifting structures, and each group of lifting structures includes ten lifting structures.

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