Seedling throwing device for tobacco seedling transplanting

Abstract

The utility model relates to the technical field of tobacco seedling transplanting, in particular to a seedling throwing device for tobacco seedling transplanting, which comprises a bottom plate provided with a motor, the output end of the motor is connected with the circle center of the bottom surface of a circular seedling tray, and a plurality of seedling cups arranged at equal intervals in the circumferential direction are inserted into the seedling tray. A covering piece is arranged at the bottom of the seedling cup and is in intermittent fit with an opening piece arranged on the platform. The seedling throwing device is simple in structure, can be held by hand or supported by a traction mechanism, and can automatically throw seedlings, tobacco growers only need to fill the seedling trays with the seedlings, and the labor intensity of the tobacco growers is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco seedling transplanting, in particular to a seedling dropping device for tobacco seedling transplanting. Background Art

[0002] Transplanting is a key link in the process of flue-cured tobacco planting. At present, the main transplanting methods of flue-cured tobacco in China are strong-seedling open-field transplanting, strong-seedling transplanting on film, small-seedling transplanting under film and well-cellar transplanting. When transplanting and dropping tobacco seedlings, either all manual dropping is adopted, that is, tobacco farmers walk along the tobacco ridges and drop the tobacco seedlings into each tobacco hole; or semi-manual dropping is adopted, that is, tobacco farmers sit on the walking machinery to drop seedlings or use a seedling dropping tray to manually rotate and open to achieve seedling dropping. However, no matter which method is used, it requires manual control, and the overall operation is labor-consuming and time-consuming. Therefore, it is necessary to provide a new seedling dropping device for tobacco seedling transplanting to solve the above technical problems. Summary of the Utility Model

[0003] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a seedling dropping device for tobacco seedling transplanting. The structure of the utility model is simple, and it can be held by hand or supported by a traction mechanism. At the same time, it can automatically complete seedling dropping, and tobacco farmers only need to replenish seedlings in the seedling tray, which greatly reduces the labor intensity of tobacco farmers.

[0004] To achieve the above purpose, the utility model provides the following technical solutions

[0005] A seedling dropping device for tobacco seedling transplanting, including a bottom plate provided with a motor, and the output end of the motor is connected to the center of the bottom surface of a circular seedling tray. A plurality of seedling cups are inserted in the seedling tray at equal intervals in the circumferential direction, and a covering member is provided at the bottom of the seedling cup and is intermittently matched with an opening member arranged on the platform.

[0006] Preferably, the covering member includes a fixing frame corresponding to the seedling cup and fixed on the bottom surface of the seedling tray. A bent rod is rotatably arranged at the bottom of the fixing frame, and the top of the bent rod is connected to a baffle for covering the bottom end of the seedling cup.

[0007] Preferably, the top surface of the baffle is in the shape of a wedge surface with the low point facing the rotation direction of the seedling tray.

[0008] Preferably, a return spring is further arranged between the fixing frame and the bent rod. When the return spring is in a non-deformed state, the baffle covers the bottom end of the seedling cup.

[0009] Preferably, a dial block is further arranged at one end of the bottom surface of the baffle away from the bent rod; the opening member includes a mounting frame fixed on the platform, a dial rod is arranged at the top of the mounting frame, and the free end of the dial rod is located on the moving path of the dial block.

[0010] Preferably, the bottom plate is a circular plate with a radius smaller than the radius of the moving track of the seedling cup, and the bottom plate is detachably connected to the traction mechanism through a connecting rod.

[0011] The working process of this utility model is as follows:

[0012] First, connect the connecting rod to the ridging and hole-making machine or other traction mechanisms such as trolleys, and then adjust the position of the seedling tray to ensure that the tobacco seedlings dropped into the seedling cup can enter the tobacco hole.

[0013] Then the motor is turned on, and the motor drives the seedling tray and the seedling cup to rotate. When the seedling cup moves close to the lever, the baffle is limited by the lever and cannot continue to rotate synchronously with the seedling cup, and the fixed frame continues to rotate, which causes the baffle to move relative to the seedling cup and deforms the reset spring at the same time. Moreover, as the displacement of the baffle relative to the seedling tray changes, the baffle will gradually break away from the limit of the lever during the displacement. As the seedling cup continues to rotate and comes to the top of the smoke hole, the baffle loses its effective covering effect on the bottom of the seedling cup, and then the tobacco seedlings in the seedling cup fall into the smoke hole, completing the planting of the current smoke hole. As the seedling tray and seedling cup continue to rotate until the current baffle moves out of the limit range of the lever, and resets under the action of the reset spring to effectively cover the bottom of the corresponding seedling cup again.

[0014] In the above process, due to the wedge surface setting on the top surface of the baffle, the tobacco seedlings will slide along the wedge surface as much as possible, which can not only ensure that the tobacco seedlings fall effectively, but also prevent the baffle from dragging the tobacco seedling roots due to friction when moving, causing the roots to be squeezed by the baffle and the inner wall of the seedling cup and cause damage;

[0015] The utility model continues to move to the next smoke hole with the traction mechanism and repeats the above action to achieve the seedling dropping operation. The motor can be equipped with a reducer to drive the seedling tray to rotate at a lower angular velocity, thereby effectively ensuring the seedling dropping effect.

[0016] Compared with the prior art, the present invention has the following advantages: the utility model has a simple structure, can be held by hand or supported by a traction mechanism, and can automatically drop seedlings. Tobacco farmers only need to add seedlings to the seedling tray, which greatly reduces the labor intensity of tobacco farmers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a preferred embodiment of the seedling throwing device for tobacco seedling transplanting provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the partial cross-sectional structure of the connection between the seedling cup, the lever and the baffle is shown. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0020] The following describes in detail the specific implementation of the present utility model in conjunction with specific embodiments.

[0021] Please refer to Figure 1-2 , a seedling dropping device for tobacco seedling transplanting, including a bottom plate 1 provided with a motor 11, and the output end of the motor 11 is connected to the center of the bottom surface of a circular seedling tray 3. A plurality of seedling cups 3 are circumferentially and equidistantly arranged and penetrate through the seedling tray 2. A fixing frame 4 is correspondingly arranged on the bottom surface of the seedling tray 2 on one side of the seedling cup 3. A bent rod 5 is rotatably arranged at the bottom of the fixing frame 4. The top of the bent rod 5 is connected to a baffle 7 for covering the bottom end of the seedling cup 3. A return spring 6 is also arranged between the fixing frame 4 and the bent rod. When the return spring 6 is in a non-deformed state, the baffle 7 covers the bottom end of the seedling cup 1; the top surface of the baffle 7 is in the shape of a wedge surface with the low point facing the rotation direction of the seedling tray 2, and a dial block 8 is also arranged at the end of the bottom surface of the baffle 7 away from the bent rod; A dial rod 91 is horizontally arranged below the seedling tray 2, and its free end is located on the moving path of the dial block 8 and is in intermittent contact with the baffle dial block 8 corresponding to each seedling cup. The other end of the dial rod 91 is connected to a mounting frame 9 fixedly arranged on the platform 1. The bottom plate 1 is a circular plate with a radius smaller than the radius of the moving track of the seedling cup 3, and the bottom plate 1 is detachably connected to a traction mechanism through a connecting rod 12.

[0022] The working process of the present utility model is as follows:

[0023] First, connect the connecting rod 12 to a ridging and hole-digging integrated machine or other trolley and other traction mechanisms, and then adjust the position of the seedling tray 2 to ensure that the tobacco seedlings dropped into the seedling cup 3 can enter the tobacco holes.

[0024] Then start the motor 11. The motor 11 drives the seedling tray 2 and the seedling cup 3 to rotate. When the seedling cup 3 moves close to the dial rod 91, the baffle 7 is limited by the dial rod 91 and cannot continue to rotate synchronously with the seedling cup 3. However, the fixing frame 4 continues to rotate, which causes the baffle 7 to displace relative to the seedling cup 3 and at the same time the return spring 6 deforms. Moreover, as the displacement of the baffle 7 relative to the seedling tray 2 changes, the baffle 7 will gradually get out of the limit of the dial rod 91 during the displacement. When the seedling cup 3 rotates continuously to the position directly above the tobacco hole, at this moment, the baffle 7 loses the effective covering effect on the bottom of the seedling cup 3, so that the tobacco seedlings in the seedling cup 3 fall into the tobacco hole, completing the seedling dropping of the current tobacco hole. As the seedling tray 2 and the seedling cup 3 continue to rotate until the current baffle 7 moves out of the limit range of the dial rod 91 and is reset under the action of the return spring 6 to effectively cover the bottom of the corresponding seedling cup 3 again.

[0025] During the above process, due to the wedge surface provided on the top surface of the baffle 7, the tobacco seedlings will slide along the wedge surface as much as possible, which can not only ensure the effective dropping of the tobacco seedlings, but also prevent the phenomenon that the root system of the tobacco seedlings is dragged due to friction when the baffle moves and the root system is squeezed by the baffle and the inner wall of the seedling cup, causing damage.

[0026] The utility model continues to move to the next tobacco hole with the traction mechanism and repeats the above actions to achieve the seedling dropping operation. The motor 11 can be equipped with a reducer to drive the seedling tray to rotate at a lower angular velocity, thereby effectively ensuring the seedling dropping effect.

[0027] The circuits and controls involved in the utility model are all prior arts and will not be elaborated here.

[0028] The above are only the embodiments of the utility model, and do not limit the patent scope of the utility model. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the utility model, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the utility model by the same token.

Claims

1. A seedling throwing device for tobacco seedling transplanting, characterized in that: include: A bottom plate is provided with a motor, and the output end of the motor is connected to the center of the bottom surface of the circular seedling tray. A plurality of seedling cups arranged at equal circumferential intervals are inserted on the seedling tray. A covering piece is provided at the bottom of the seedling cup and intermittently cooperates with an opening piece arranged on the platform. The covering piece includes a fixing frame corresponding to the seedling cup and fixed on the bottom surface of the seedling tray. A bending rod is rotatably provided at the bottom of the fixing frame, and the top of the bending rod is connected to a blocking piece used to cover the bottom end of the seedling cup.

2. The seedling throwing device for tobacco seedling transplanting according to claim 1, characterized in that: The top surface of the baffle is in the shape of a wedge with the low point facing the rotation direction of the seedling tray.

3. The seedling throwing device for tobacco seedling transplanting according to claim 1, characterized in that: A return spring is also arranged between the fixing frame and the bending rod. The return spring is in a non-deformed state, and the blocking piece covers the bottom end of the seedling cup.

4. The seedling throwing device for tobacco seedling transplanting according to claim 1, characterized in that: A shift block is also provided at one end of the bottom surface of the blocking piece away from the bending rod; the opening member comprises a mounting frame fixed on the platform, a shift rod is provided on the top of the mounting frame and the free end of the shift rod is located on the moving path of the shift block.

5. The seedling throwing device for tobacco seedling transplanting according to claim 1, characterized in that: The bottom plate is a circular plate with a radius smaller than the radius of the moving track of the seedling cup, and the bottom plate is detachably connected to the traction mechanism through a connecting rod.

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