Synchronous thinning and grading device for high-density planting of strawberries

Abstract

The application discloses a synchronous fruit thinning and grading device for high-density strawberry planting, relates to the technical field of strawberry planting, and comprises a carrier and a mechanical arm, further comprises a mounting frame, a plurality of partitions are arranged at the lower end of the mounting frame, a position-avoiding assembly is arranged on the side of the partition close to the carrier, a rod is arranged on the two sides of the partition and the position-avoiding assembly, a cutting mechanism is connected to the left end of the partition below the mounting frame, the position-avoiding assembly comprises a bottom plate, a plate one, a plate two and a plate three, the right end of the plate two is provided with a first control assembly, the right end of the plate two is rotationally connected with the plate three through the first control assembly, and the plate three is internally provided with a second control assembly; the fruit at all levels and the corresponding stems and vines are made vertical through the partitions, and the fruit at different levels is graded and thinned according to the growth height; and the formed fruit is protected through the structure of the position-avoiding assembly, so that the device can quickly and mechanically grade and thin the fruit, the fruit is well protected, the efficiency of fruit thinning is effectively improved, and the stability of fruit thinning is improved.

Description

Technical Field

[0001] This invention relates to the field of strawberry cultivation technology, specifically to a synchronous fruit thinning and grading device for high-density strawberry cultivation. Background Technology

[0002] During strawberry cultivation, the strawberries are graded according to the order in which they bear fruit. As shown in the diagram, the first fruit is grade one, and the grades follow one after another. Due to their growth characteristics, the higher the grade of the fruit, the farther it is from the ground when pulled vertically. In order to ensure that the nutrients of the strawberries are more concentrated during the growth process and to achieve a higher quality final product, it is generally necessary to retain the lower grade fruits and remove the higher grade fruits that grow later.

[0003] To reduce the intensity of manual labor, high-efficiency mechanical methods are usually used for fruit thinning. Traditional mechanical fruit thinning methods mostly rely on the growth height of fruits at each level, directly cutting off the stems above a certain height indiscriminately. This method has weak selection ability and is prone to missing or accidentally cutting some higher-level fruits that grow downwards due to obstructed growth space, or lower-level fruits that grow upwards. This results in a decrease in the final strawberry harvest. Summary of the Invention

[0004] The purpose of this invention is to provide a device for simultaneous fruit thinning and grading of strawberries for high-density planting, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a synchronous fruit thinning and grading device for high-density strawberry cultivation, including a robotic arm and a mounting frame connected to the robotic arm. The lower end of the mounting frame is provided with a longitudinal array of multiple partitions, and the right end of each partition is provided with an oblique angle. Insert rods are provided on both sides of the partition; A cutting mechanism is vertically slidably connected to the left end of the partition below the mounting frame. The cutting mechanism is used to cut strawberry stems.

[0006] Furthermore, it also includes a vehicle on which multiple robotic arms are respectively mounted.

[0007] Furthermore, the partition closest to the vehicle is provided with at least one clearance component on the side closest to the vehicle; the right end of each clearance component is provided with an angle; and each clearance component is provided with a plug on both sides. The avoidance assembly includes a base plate, a first plate, a second plate, and a retractable third plate. The right end of the third plate is provided with an angle. Both ends of the base plate are fixedly connected to the insert rod. The first plate is fixedly connected to the upper left side of the base plate. The upper end of the first plate is fixedly connected to the lower end of the mounting bracket. The second plate is located on the right side of the first plate and is elastically slidably connected to the first plate. The right end of the second plate is provided with a first control component. The right end of the second plate is rotatably connected to the third plate through the first control component. The third plate is provided with a second control component. The first control component can control the rotation angle of the third plate relative to the second plate based on the sliding displacement of the second plate relative to the first plate. The second control component can control the extension length of plate three according to the rotation angle of plate three relative to plate two.

[0008] Furthermore, the upper end of the base plate is provided with a rounded corner that fits the outline of the insertion rod, and the rounded corner extends from the right end of the base plate to the left end of the plate.

[0009] Furthermore, the first control component includes a connecting plate, which is fixedly connected to the upper end of the second plate. A connecting block one is fixedly connected to the right end of the second plate, and a connecting block two is fixedly connected to the left end of the third plate. The connecting block one is rotatably connected to a vertically arranged rotating shaft, and the connecting block two is fixedly connected to the rotating shaft. A stepper motor is fixedly connected to the upper end of the connecting plate, and the output shaft of the stepper motor is fixedly connected to the rotating shaft. A position sensor is externally connected to the second plate, and the position sensor can control the stepper motor to work through the displacement of the second plate relative to the first plate.

[0010] Furthermore, the third plate includes a straight plate, and a trapezoidal plate is elastically slidably connected to the right end of the straight plate.

[0011] Furthermore, the second control component includes a clearance groove that runs longitudinally through the straight plate and the trapezoidal plate. A fan-shaped plate is provided in the clearance groove. The fan-shaped plate is fixedly connected to the right end of the second plate. The rotating shaft runs vertically through the fan-shaped plate. A guide groove is provided at the upper end of the fan-shaped plate. The trajectory of the guide groove gradually approaches the center of the fan-shaped plate along the direction of the vehicle. A sliding rod is fixedly connected to the trapezoidal plate. The sliding rod is slidably connected to the guide groove.

[0012] Furthermore, an air pump is fixedly connected to the upper end of the mounting bracket, and a rectangular tube is fixedly connected to the left end of the mounting bracket. The rectangular tube is connected to the intervals of each adjacent partition and clearance component. The air pump is connected to the rectangular tube and is used to generate an upward airflow in the intervals of each adjacent partition and clearance component.

[0013] Furthermore, the cutting mechanism includes a mounting plate, which is disposed on the left side of the rectangular tube. The mounting plate is fixedly connected to the mounting frame. A plurality of vertically arranged sliding rods are fixedly connected to the lower end of the mounting plate. The plurality of sliding rods are vertically and slidably connected to the cutting component. A screw is fixedly connected to the upper end of the cutting component. The screw vertically penetrates the mounting plate and is threadedly connected to the mounting plate.

[0014] Furthermore, an external guide bucket is fixedly connected to the left side of the cutting assembly, and the guide bucket is used to guide the cut stems to slide down towards the carrier.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This invention enables fruits of all grades and their corresponding stems to be made vertical by using partitions, and then uses the growth height of different grades of fruits for grading and thinning. This increases the vertical spacing between fruits of different grades and enhances the selectivity of the equipment. At the same time, it effectively avoids the problem of missing or incorrectly cutting fruits of higher grades with stems growing downwards or fruits of lower grades with stems growing upwards due to obstructed growth space. Attached Figure Description

[0016] Figure 1 A schematic diagram illustrating the growth characteristics of strawberries; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 A structural diagram of a single mounting frame and its components in conjunction with a planting frame; Figure 4 A structural schematic diagram of a single mounting bracket and its components; Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point A in the middle; Figure 6 for Figure 4 Remove the structural diagram of the air pump; Figure 7 for Figure 6 A schematic diagram of the front section structure; Figure 8 A schematic diagram of the structure for the partition and insert rod corresponding to a single mounting bracket; Figure 9 This is a schematic diagram illustrating the working principle of the third board. Figure 10 This is a schematic diagram illustrating the principle of fruit thinning. Figure 11 for Figure 10 A comparison diagram.

[0017] In the attached diagram, the components represented by each number are as follows: 1: Carrier; 2: Robotic arm; 3: Mounting frame; 4: Partition plate; 6: Insert rod; 7: Base plate; 8: Plate 1; 9: Plate 2; 11: Rounded corner; 12: Connecting plate; 13: Connecting block 1; 14: Connecting block 2; 15: Rotating shaft; 16: Stepper motor; 17: Straight plate; 18: Trapezoidal plate; 19: Alignment groove; 20: Fan-shaped plate; 21: Guide groove; 22: Sliding rod; 23: Air pump; 24: Rectangular tube; 25: Mounting plate; 26: Sliding rod; 27: Cutting assembly; 28: Screw; 90: Planting frame; 91: Frame. Detailed Implementation

[0018] Please see Figures 1-11 The present invention provides a technical solution: a synchronous fruit thinning and grading device for high-density strawberry planting, including a robotic arm 2 and a mounting frame 3 connected to the robotic arm 2. The lower end of the mounting frame 3 is longitudinally arranged with multiple partitions 4, and the right end of each partition 4 is provided with an oblique angle. Insert rods 6 are provided on both sides of the partition 4; Below the mounting bracket 3, on the left end of the partition 4, there is a vertically sliding cutting mechanism that is used to cut strawberry stems.

[0019] by Figure 3 As a reference frame, the robotic arm 2 adjusts the position of the mounting frame 3 so that the insertion rod 6 is positioned above the planting frame 90. Then, the robotic arm 2 drives the corresponding insertion rod 6 to move laterally along the planting frame 90, so that each insertion rod 6 is inserted laterally between the strawberry stems. As each insertion rod 6 continues to move laterally, the layered stems enter the spaces between the partitions 4 on the left side of the insertion rod 6 along the right side of the insertion rod 6, thus creating vertical layers of the strawberry stems and the inflorescences or fruits on the stems. Then, since the stems grow longitudinally outward from the planting frame 90, the growth direction of the stems is perpendicular to the partitions 4. This means that as the stems enter the spaces between the partitions 4, they gradually become vertical along the diagonal edge of the right end of each partition 4, so that the inflorescences or fruits corresponding to the stems entering the spaces between the insertion rods 6 eventually enter the spaces between the partitions 4 corresponding to the insertion rods 6, further creating vertical layers of fruits at each level on the stems. By adjusting the height of the cutting mechanism, fruits of higher levels can be cut off. During this process, since the lower-grade fruits grow preferentially and are located at a lower position, generally, by controlling the height of the insertion rod 6, the stems and vines of the lower-grade fruits will not enter between the insertion rods 6. That is, under ideal circumstances, the lower-grade fruits and their stems and vines will not enter between the avoidance components and the partitions 4. refer to Figure 1 and 10 ( Figure 1 , Figure 9 and Figure 10For ease of description, only level four fruits are shown (in reality, fruits of higher levels may appear). Since fruit thinning is generally carried out when level one and two fruits have already formed, the corresponding higher-level secondary fruits are still in the inflorescence stage. Under the action of gravity, the stems of level one and two fruits are pressed down and supported on the frame wall of planting frame 90, while the higher-level secondary fruits can still remain upright. This makes the higher-level secondary fruits closer to the root and stem of the strawberry plant, while level one and two fruits generally extend out of planting frame 90 and hang down, and the corresponding stems of level one and two fruits are in an approximately parabolic state. Correspondingly, when the robotic arm 2 adjusts the position of the mounting bracket 3, it positions the insertion rod 6 corresponding to the avoidance component above the vertex of the parabolic trajectory of the first and second level fruit stems.

[0020] This invention enables the partition 4 to make all levels of fruit and their corresponding stems vertical, and then uses the growth height of different levels of fruit for grading and thinning. This increases the vertical spacing between different levels of fruit, enhancing the equipment's selectivity. At the same time, it effectively avoids the problem of missed or incorrect cutting of higher-level fruits with downward-growing stems or lower-level fruits with upward-growing stems due to obstructed growth space.

[0021] Furthermore, it also includes a carrier 1, on which multiple robotic arms 2 are respectively mounted.

[0022] Multiple planting frames 90 Figure 2 The state is installed on the frame 91, in which the strawberry fruiting vines grow towards the planting frame 90 on the side away from the frame 91 (under artificial intervention); by controlling each robotic arm 2, each robotic arm 2 corresponds to each planting frame 90 on one side of the frame 91, so that there is a mounting frame 3 above each planting frame 90 on both sides of the carrier 1. Since strawberry vines grow naturally, it's inevitable that a small number of primary and secondary fruiting vines will extend above the planting pole (pole 6). In this case, refer to... Figure 10 and 11 ( Figure 10 (The dotted line L indicates the cutting position of the cutting mechanism). Because the first and second-grade fruits have already formed into larger fruits, during the process of the first and second-grade fruits entering between the partitions 4, there is a phenomenon where the connection between the fruit and the stem is stuck with the partition 4, which poses a risk of the first and second-grade fruits falling off. Furthermore, at least one clearance component is provided on the side of the partition 4 closest to the vehicle 1; the right end of each clearance component is provided with an angle; and insert rods 6 are provided on both sides of each clearance component. The avoidance assembly includes a base plate 7, a first plate 8, a second plate 9, and a telescopic third plate. The right end of the third plate is provided with an angle. Both ends of the base plate 7 are fixedly connected to the insertion rod 6. The first plate 8 is fixedly connected to the upper left side of the base plate 7. The upper end of the first plate 8 is fixedly connected to the lower end of the mounting bracket 3. The second plate 9 is located on the right side of the first plate 8 and is elastically slidably connected to the first plate 8. The right end of the second plate 9 is provided with a first control component. The right end of the second plate 9 is rotatably connected to the third plate through the first control component. The third plate is provided with a second control component. The first control component can control the rotation angle of the third plate relative to the second plate 9 according to the sliding displacement of the second plate 9 relative to the first plate 8. The second control component can control the extension length of plate three according to the rotation angle of plate three relative to plate two 9.

[0023] The number of avoidance components is set according to the growth status of the strawberries to ensure that the first and second-level fruit vines will only enter the intervals with avoidance components. In this invention, for ease of description, a design scheme of selecting an obstacle avoidance component in conjunction with multiple partitions 4 is used for principle description: During the process of the first and second level fruits entering between the avoidance component and partition 4, if the first and second level fruits engage with the avoidance component, the fruits will first engage with the right-angled edge on the right side of partition 3 (it should be noted that the advanced level fruits, since they have not yet formed a fruit, will not engage with the partition, and even if they do, the engaging torque will be small and will not cause damage). At this time, the first and second level fruits move to the left relative to the avoidance component, causing the first and second level fruits to exert a leftward pulling force on partition 3. Furthermore, partition 3 pushes partition 2 9 to the left, causing partition 2 9 to move to the left relative to partition 1 8. This forms a buffer, reducing the rightward inertial force exerted by partition 3 on the first and second level fruits, thereby reducing the risk of the first and second level fruits falling off; at the same time, as partition 2 9 moves to the left relative to partition 1 8, such as Figure 9 The first control component controls plate three to rotate relative to plate two 9 towards carrier 1, while the second control component controls plate three to shorten, so that during the rotation of plate three, the right end of plate three detaches from the fruit, preventing the rotation of plate three from exerting a greater force on the fruit and causing the fruit to detach; furthermore, by rotating plate three, the distance between the right end of plate three and the avoidance component is increased, allowing the fruit to directly enter between plate three and the avoidance component; thus protecting the fruit during the process of entering the partition. As can be seen from the above, the avoidance component has the function of protecting the fruit relative to the partition 4. In practical applications, the number of avoidance components can be changed according to the usage scenario.

[0024] In summary, the present invention protects the formed fruit through the structure of the avoidance component, enabling the equipment to quickly perform mechanized grading and thinning of the fruit, while providing good protection for the fruit, effectively improving the efficiency and stability of thinning.

[0025] Furthermore, the upper end of the base plate 7 is provided with a rounded corner 11 that fits the outline of the insert rod 6, and the rounded corner 11 extends from the right end of the base plate 7 to the left end of the plate 3.

[0026] Since the third plate can rotate relative to the base plate 7, the upper right end of the base plate 7 can be exposed and come into contact with the fruit. Therefore, the upper end of the base plate 7 is rounded with a corner 11 so that the fruit will not be scratched by the corner of the base plate 7 during the process of entering the avoidance component.

[0027] The first control component includes a connecting plate 12, which is fixedly connected to the upper end of plate 2 9. A connecting block 13 is fixedly connected to the right end of plate 2 9, and a connecting block 2 14 is fixedly connected to the left end of plate 3. A vertically arranged rotating shaft 15 is rotatably connected to the connecting block 13. The connecting block 2 14 is fixedly connected to the rotating shaft 15. A stepper motor 16 is fixedly connected to the upper end of the connecting plate 12. The output shaft of the stepper motor 16 is fixedly connected to the rotating shaft 15. A position sensor is externally connected to plate 2 9. The position sensor can control the stepper motor 16 to work through the displacement of plate 2 9 relative to plate 1 8.

[0028] Using base plate 7 as a reference: When the fruit moves to the left along the insertion rod 6 and gets stuck at the right end of plate three, and overcomes the elastic force to push plate two 9 to slide to the left, the position sensor controls the stepper motor 16 to work. The stepper motor 16 drives the rotating shaft 15 to rotate, so that the rotating shaft 15 drives plate three to rotate in the direction of carrier 1, thereby allowing the fruit to move from the side of plate three closer to carrier 1 to the side of plate three away from carrier 1, avoiding the fruit getting stuck at the right end of plate three.

[0029] During the process of rotating board three to move the fruit from the side of board three closer to vehicle 1 to the side of board three farther away from vehicle 1, if board three cannot extend or retract, then... Figure 9 The third plate will squeeze the tail of the fruit, and the corresponding fruit will be subjected to a force that causes it to detach from the stem, which will easily lead to the phenomenon of first and second grade fruit falling off. In order to address this phenomenon, the present invention designs a retractable third plate.

[0030] The third plate includes a straight plate 17, and a trapezoidal plate 18 is elastically slidably connected to the right end of the straight plate 17.

[0031] The second control component includes a clearance groove 19 that runs longitudinally through the straight plate 17 and the trapezoidal plate 18. A sector plate 20 is provided in the clearance groove 19. The sector plate 20 is fixedly connected to the right end of the second plate 9. A rotating shaft 15 runs vertically through the sector plate 20. A guide groove 21 is provided at the upper end of the sector plate 20. The trajectory of the guide groove 21 gradually approaches the center of the sector plate 20 along the direction of the carrier 1. A sliding rod 22 is fixedly connected to the trapezoidal plate 18. The sliding rod 22 is slidably connected to the guide groove 21.

[0032] like Figure 9During the rotation of plate three relative to plate two 9, slide rod 22 moves towards carrier 1 along with trapezoidal plate 18. Furthermore, slide rod 22 slides towards carrier 1 along guide groove 21 and drives trapezoidal plate 18 closer to the center of fan-shaped plate 20, causing fan-shaped plate 20 to move to the left relative to straight plate 17, shortening plate three. As the fruit moves from the side of plate three closer to carrier 1 to the side of plate three away from carrier 1, plate three moves away from the tail of the fruit. This further reduces the force exerted by plate three on the fruit during the rotation of plate three, which causes the fruit to detach from the stem, thus reducing the probability of fruit falling off and providing good protection for the fruit.

[0033] When fruits of each grade and their corresponding stems enter the partition, the stems tilt to the right because the partition moves relative to the stems. This reduces the vertical distance between the fruits of each grade at the ends of the stems, thus increasing the difficulty of grading. Furthermore, in order to increase the vertical distance between fruits of each grade, the stems between the partitions need to be kept as vertical as possible.

[0034] An air pump 23 is fixedly connected to the upper end of the mounting bracket 3, and a rectangular tube 24 is fixedly connected to the left end of the mounting bracket 3. The rectangular tube 24 is connected to the gaps between each adjacent partition 4 and the clearance assembly. The air pump 23 is connected to the rectangular tube 24. The air pump 23 is used to create an upward airflow in the gaps between each adjacent partition 4 and the clearance assembly.

[0035] When the vine enters the partition and passes directly below the rectangular tube 24, the airflow generated by the air pump 23 will cause the inclined vine to move closer to a vertical position, increasing the vertical distance between the fruits at each level at the end of the vine, thereby reducing the difficulty of grading by the cutting mechanism when the vine passes through it.

[0036] The cutting mechanism includes a mounting plate 25, which is located on the left side of the rectangular tube 24. The mounting plate 25 is fixedly connected to the mounting bracket 3. Multiple vertically arranged sliding rods 26 are fixedly connected to the lower end of the mounting plate 25. The multiple sliding rods 26 are vertically slidably connected to the cutting component 27. The upper end of the cutting component 27 is fixedly connected to a screw 28, which vertically passes through the mounting plate 25 and is threadedly connected to the mounting plate 25.

[0037] The cutting assembly 27 has an external guide bucket fixedly connected to its left side. The guide bucket is used to guide the cut stems to slide down towards the carrier 1.

[0038] Based on the height of the corresponding stems after vertical stretching, the required cutting height of the cutting component 27 is determined, and the cutting height of the cutting component 27 is changed by rotating the screw 28, thus performing graded fruit thinning; at the same time, the cut stems are guided to slide down towards the carrier 1 by the guide bucket, so as to prevent the cut stems from falling into the planting frame 90 and accumulating and rotting and moldy over a long period of time, which would lead to infection of the strawberry plants.

Claims

1. A synchronous fruit thinning and grading device for high-density strawberry cultivation, comprising a robotic arm (2), characterized in that: It also includes a mounting frame (3) connected to the robotic arm (2), wherein multiple partitions (4) are arranged in a longitudinal array at the lower end of the mounting frame (3), and each partition (4) has an oblique angle on its right end; Insert rods (6) are provided on both sides of the partition (4); The mounting bracket (3) is vertically slidably connected to the left end of the partition (4) below the partition (4), and the cutting mechanism is used to cut strawberry stems; It also includes a carrier (1), on which a plurality of said robotic arms (2) are respectively mounted; The partition (4) closest to the vehicle (1) is provided with at least one clearance component on the side closest to the vehicle (1); the right end of the clearance component is provided with an angle; and the clearance component is provided with a rod (6) on both sides. The avoidance assembly includes a base plate (7), a first plate (8), a second plate (9), and a telescopic third plate. The right end of the third plate is provided with an angle. Both ends of the base plate (7) are fixedly connected to the insert rod (6). The first plate (8) is fixedly connected to the upper left side of the base plate (7). The upper end of the first plate (8) is fixedly connected to the lower end of the mounting bracket (3). The second plate (9) is located on the right side of the first plate (8) and is elastically slidably connected to the first plate (8). The right end of the second plate (9) is provided with a first control component. The right end of the second plate (9) is rotatably connected to the third plate through the first control component. The third plate is provided with a second control component. The first control component can control the rotation angle of the third plate relative to the second plate (9) according to the sliding displacement of the second plate (9) relative to the first plate (8); The second control component can control the extension length of plate three according to the rotation angle of plate three relative to plate two (9).

2. The synchronous fruit thinning and grading device for high-density strawberry cultivation according to claim 1, characterized in that: The upper end of the base plate (7) is provided with a rounded corner (11) that fits the outline of the insert rod (6), and the rounded corner (11) extends from the right end of the base plate (7) to the left end of the plate.

3. The synchronous fruit thinning and grading device for high-density strawberry cultivation according to claim 2, characterized in that: The first control component includes a connecting plate (12), which is fixedly connected to the upper end of the second plate (9). The right end of the second plate (9) is fixedly connected to a connecting block (13), and the left end of the third plate is fixedly connected to a connecting block (14). The connecting block (13) is rotatably connected to a vertically arranged rotating shaft (15). The connecting block (14) is fixedly connected to the rotating shaft (15). The upper end of the connecting plate (12) is fixedly connected to a stepper motor (16). The output shaft of the stepper motor (16) is fixedly connected to the rotating shaft (15). The second plate (9) is externally connected to a position sensor. The position sensor can control the stepper motor (16) to work by the displacement of the second plate (9) relative to the first plate (8).

4. The synchronous fruit thinning and grading device for high-density strawberry cultivation according to claim 3, characterized in that: The third plate includes a straight plate (17), and a trapezoidal plate (18) is elastically slidably connected to the right end of the straight plate (17).

5. The synchronous fruit thinning and grading device for high-density strawberry cultivation according to claim 4, characterized in that: The second control component includes a clearance groove (19) that runs longitudinally through the straight plate (17) and the trapezoidal plate (18). A fan-shaped plate (20) is provided in the clearance groove (19). The fan-shaped plate (20) is fixedly connected to the right end of the second plate (9). The rotating shaft (15) runs vertically through the fan-shaped plate (20). A guide groove (21) is provided at the upper end of the fan-shaped plate (20). The trajectory of the guide groove (21) gradually approaches the center of the fan-shaped plate (20) along the direction of the vehicle (1). A sliding rod (22) is fixedly connected to the trapezoidal plate (18). The sliding rod (22) is slidably connected to the guide groove (21).

6. The synchronous fruit thinning and grading device for high-density strawberry cultivation according to claim 1, characterized in that: An air pump (23) is fixedly connected to the upper end of the mounting bracket (3), and a rectangular tube (24) is fixedly connected to the left end of the mounting bracket (3). The rectangular tube (24) is connected to the intervals of each adjacent partition (4) and the clearance assembly. The air pump (23) is connected to the rectangular tube (24). The air pump (23) is used to generate an upward airflow in the intervals of each adjacent partition (4) and the clearance assembly.

7. The synchronous fruit thinning and grading device for high-density strawberry cultivation according to claim 1, characterized in that: The cutting mechanism includes a mounting plate (25), which is located on the left side of the rectangular tube (24). The mounting plate (25) is fixedly connected to the mounting frame (3). A plurality of vertically arranged sliding rods (26) are fixedly connected to the lower end of the mounting plate (25). The plurality of sliding rods (26) are vertically slidably connected to the cutting assembly (27). A screw (28) is fixedly connected to the upper end of the cutting assembly (27). The screw (28) vertically penetrates the mounting plate (25) and is threadedly connected to the mounting plate (25).

8. The synchronous fruit thinning and grading device for high-density strawberry cultivation according to claim 7, characterized in that: The cutting assembly (27) has an external guide bucket fixedly connected to its left side. The guide bucket is used to guide the cut stems to slide down toward the carrier (1).

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