Light and thin plant specimen conveying device with negative pressure adsorption fixing structure

Abstract

This invention relates to the field of plant specimen transport technology and discloses a lightweight plant specimen transport device with a negative pressure adsorption and fixation structure. The device includes a loading section, which comprises a base. A vertical frame is fixedly mounted on the upper surface of the base. A horizontal frame is horizontally slidably connected to the vertical frame via an electric slide rail on its upper surface. A drive seat is fixedly mounted in the middle of the horizontal frame. The drive seat is connected to a connecting plate via a cylinder on its lower surface. This lightweight plant specimen transport device with a negative pressure adsorption and fixation structure effectively solves the problem in existing technologies where most plant specimen transport devices only have a single transport function and cannot adjust specimen trays with inconsistent orientations during transport. Manual intervention for calibration is required during subsequent photographing and archiving, which not only reduces the overall efficiency of specimen transport and processing but also easily leads to damage to lightweight plant specimens due to human error.

Description

Technical Field

[0001] This invention relates to the field of plant specimen transport technology, and specifically to a thin and lightweight plant specimen transport device with a negative pressure adsorption and fixation structure. Background Technology

[0002] Thin plant specimens are produced by flattening and rapid drying to remove moisture from the plant tissue, resulting in thin, flat, lightweight specimens that are easy to preserve and display. These thin plant specimens fit perfectly against a flat surface without any three-dimensional bulges, making them easy to attach to the mounting paper. The mounting paper is the core carrier for holding the pressed thin plant specimens. Key information about the specimen is marked on the mounting paper, and its orientation directly affects the efficiency of specimen processing and the smooth operation of subsequent scanning, identification, and archiving procedures.

[0003] In actual production and use, due to differences in the pre-pressing and sorting processes of specimens, the orientation of multiple specimen mounting sheets when entering the conveying equipment is random. That is, the information label area on the specimen mounting sheet will face upward or downward, resulting in inconsistent orientations. Most existing plant specimen conveying equipment only has a single conveying function and cannot adjust specimen mounting sheets with inconsistent orientations during the conveying process. Manual intervention and calibration are required during subsequent photography and archiving, which not only reduces the overall efficiency of specimen conveying and processing but also easily causes damage to thin plant specimens due to human error. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a lightweight plant specimen transport device with a negative pressure adsorption and fixation structure. This device effectively solves the problem that most existing plant specimen transport devices only have a single transport function and cannot adjust specimen trays with inconsistent orientations during transport. Manual intervention and calibration are required during subsequent photography and archiving, which not only reduces the overall efficiency of specimen transport and processing but also easily leads to damage to lightweight plant specimens due to human error.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a thin and lightweight plant specimen transport device with a negative pressure adsorption fixation structure, comprising: The feeding section includes a base, a vertical frame is fixedly installed on the upper surface of the base, a horizontal frame is horizontally slidably connected to the vertical frame via an electric slide rail on its upper surface, a drive seat is fixedly installed in the middle of the horizontal frame, a connecting plate is connected to the drive seat via a cylinder on its lower surface, a suction nozzle is embedded inside the connecting plate, and a feeding frame is fixedly installed on the upper surface of the base below the horizontal frame. The conveying unit includes a rotating table. Four connecting rods are fixedly connected to the outer circumference of the rotating table. The four connecting rods are arranged in a circumferential array around the rotating table. A placement frame is fixedly connected to the end of each connecting rod away from the rotating table. A placement cavity is opened in the middle of the placement frame. A support plate is arranged inside the placement cavity. An adsorption hole is opened on the upper surface of the support plate. A rotating component is arranged inside the placement cavity.

[0006] Furthermore, it also includes a feeding section, which includes a feeding frame, the feeding frame being fixedly installed on the upper surface of the base, the inside of the feeding frame having a sliding groove, and the lower surface of the support plate having an unfolding member.

[0007] Furthermore, there are two support plates, which are symmetrically distributed around the connecting rod. The support plates have a semi-circular structure, and a limiting step that fits against the lower surface of the placement frame is fixedly installed on the lower surface of the placement frame.

[0008] Furthermore, the rotating component includes a protrusion, the top of which is fixedly connected to the lower surface of the support plate, the bottom of which adopts a conical structure design, a vertical groove is provided inside the placement frame, a limiting block that fits against the inner wall surface of the vertical groove is fixedly connected to the outer circumference of the support plate, and an annular groove that communicates with the inner surface of the vertical groove is provided inside the placement frame.

[0009] Furthermore, a base is provided on the side of the rotary table away from the feeding frame, and a transmission block is connected to the upper surface of the base. The upper surface of the transmission block has a groove that fits with the outer circumference of the protrusion.

[0010] Furthermore, the unfolding component includes a rotating rod one, which is rotatably connected to a rotating rod two via a rotating shaft disposed inside it. A torsion spring connected to the interior of the rotating rod two is sleeved on the outer circumference of the rotating shaft. The rotating rod one and the rotating rod two are symmetrically distributed around the rotating shaft. The outer ends of the rotating rod one and the rotating rod two are respectively hinged to the lower surfaces of the two support plates.

[0011] Furthermore, a push rod is slidably connected to the upper surface of the feeding frame, and a push plate is fixedly connected to the top end of the push rod.

[0012] The technical solution provided by this invention has the following advantages compared with the prior art: This invention comprises a rotating table, a connecting rod placement frame, support plates, and rotating components. The rotating table, in conjunction with the connecting rod, integrates the loading, identification and detection, direction-changing and photographing, and unloading stations into a single circulating system within the conveying unit. Each 90-degree rotation of the rotating table simultaneously switches between the four stations, enabling parallel multi-process operations (i.e., identification, photographing, and unloading while loading). Compared to existing manual handling or single-line transmission methods, this significantly shortens the cycle time for specimen processing and effectively improves the overall efficiency of plant specimen digitization and organization. When the identification and detection head detects an incorrect orientation of the specimen mounting paper, the base of the conveying unit drives the transmission block to rise and rotate. Through the cooperation of the protrusion and groove, the two support plates within the placement frame synchronously close and rotate 180 degrees. This overcomes the problems of inconsistent photographing and archiving due to chaotic specimen orientations, and the difficulties in subsequent image processing in existing technologies. It ensures that all specimens are photographed and archived in a uniform and standard orientation, improving the standardization and quality of specimen digitization archives.

[0013] In the feeding section, a push rod drives a rotating rod to overcome the torsion spring force, causing two support plates to slide out in opposite directions. Before feeding, the suction holes maintain a small negative pressure to keep the specimen mounting paper taut. When the support plates are extended to their maximum distance, the specimen mounting paper is suspended in the middle, and the suction is released, the mounting paper falls smoothly into the feeding frame in a near-horizontal posture under its own gravity. This design overcomes the defect in existing equipment where the specimen mounting paper falls at an angle, causing one side to impact and squeeze the lower specimen, resulting in bending or damage, and achieves non-destructive stacking feeding. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a schematic diagram of the conveying section according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the rotary table, connecting rod, placement frame, rotating component and unloading frame according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the placement frame, support plate, and unfolding component according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the separation structure of the placement frame and the support plate in an embodiment of the present invention.

[0016] The markings in the diagram represent: 1. Feeding section; 10. Base; 11. Vertical frame; 12. Horizontal frame; 13. Drive seat; 14. Connecting plate; 15. Suction nozzle; 16. Feeding frame; 2. Conveying section; 21. Rotary table; 22. Connecting rod; 23. Placement frame; 231. Placement cavity; 232. Slide groove; 233. Limiting step; 24. Support plate; 241. Suction hole; 25. Rotating component; 251. Protrusion; 252. Vertical groove; 253. Limiting block; 254. Annular groove; 255. Base; 256. Transmission block; 2561. Groove; 3. Unloading section; 31. Unloading frame; 32. Unfolding component; 321. Rotating rod one; 322. Rotating rod two; 323. Torsion spring; 33. Push rod; 331. Push plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] The present invention will be further described below with reference to embodiments.

[0019] Example

[0020] Please see Figures 1-5 This invention provides a technical solution: a thin and lightweight plant specimen transport device with a negative pressure adsorption and fixation structure, comprising: The feeding unit 1 includes a base 10. A vertical frame 11 is fixedly installed on the upper surface of the base 10. A horizontal frame 12 is horizontally slidably connected to the vertical frame 11 via an electric slide rail on its upper surface. A drive seat 13 is fixedly installed in the middle of the horizontal frame 12. A connecting plate 14 is connected to the drive seat 13 via a cylinder on its lower surface. A suction nozzle 15 is embedded inside the connecting plate 14. A feeding frame 16 is fixedly installed on the upper surface of the base 10 below the horizontal frame 12. The conveying unit 2 includes a rotating table 21. A connecting rod 22 is fixedly connected to the outer circumference of the rotating table 21. Four connecting rods 22 are arranged in a circumferential array around the rotating table 21. A placement frame 23 is fixedly connected to the end of the connecting rod 22 away from the rotating table 21. A placement cavity 231 is opened in the middle of the placement frame 23. A support plate 24 is arranged inside the placement cavity 231. An adsorption hole 241 is opened on the upper surface of the support plate 24. A rotating component 25 is arranged inside the placement cavity 231.

[0021] It also includes a feeding section 3, which includes a feeding frame 31. The feeding frame 31 is fixedly installed on the upper surface of the base 10. The inside of the placement frame 23 is provided with a sliding groove 232, and the lower surface of the support plate 24 is provided with an unfolding member 32.

[0022] There are two support plates 24, which are symmetrically distributed around the connecting rod 22. The support plates 24 adopt a semi-circular structure. The lower surface of the placement frame 23 is fixedly installed with a limiting step 233 that fits against the lower surface of the placement frame 23.

[0023] The rotating component 25 includes a protrusion 251. The top of the protrusion 251 is fixedly connected to the lower surface of the support plate 24. The bottom of the protrusion 251 adopts a conical structure design. A vertical groove 252 is opened inside the placement frame 23. A limiting block 253 that fits against the inner wall surface of the vertical groove 252 is fixedly connected to the outer circumference of the support plate 24. An annular groove 254 that communicates with the inner surface of the vertical groove 252 is opened inside the placement frame 23.

[0024] A base 255 is provided on the side of the rotary table 21 away from the feeding frame 16. A transmission block 256 is connected to the upper surface of the base 255. A groove 2561 that fits the outer circumference of the protrusion 251 is provided on the upper surface of the transmission block 256.

[0025] The unfolding component 32 includes a first rotating rod 321, which is rotatably connected to a second rotating rod 322 via a rotating shaft located inside it. A torsion spring 323 connected to the inside of the second rotating rod 322 is sleeved on the outer circumference of the rotating shaft. The first rotating rod 321 and the second rotating rod 322 are symmetrically distributed around the rotating shaft. The outer ends of the first rotating rod 321 and the second rotating rod 322 are respectively hinged to the lower surfaces of the two support plates 24.

[0026] A push rod 33 is slidably connected to the upper surface of the feeding frame 31, and a push plate 331 is fixedly connected to the top of the push rod 33.

[0027] The rotary table 21 drives four placement frames 23 to rotate via four connecting rods 22, corresponding to four workstations. These workstations, based on the conveying path, are: a loading station, an identification and detection station, a direction-changing and photographing station, and a unloading station. In the identification and detection station, the top of each placement frame 23 is equipped with an identification and detection head, which can detect the information on the specimen paper and determine if its orientation is correct. If incorrect, the specimen paper needs to be rotated at the direction-changing and photographing station using a rotating component 25 via a support plate 24.

[0028] In the initial state, after the equipment is started, the entire system is in standby mode. At this time, the horizontal frame 12 of the loading section 1 is driven by the electric slide rail on the upper surface of the vertical frame 11 and stops at a preset position directly above the loading frame 16. The cylinder is in a retracted state, the connecting plate 14 and the suction nozzle 15 are in a high position, and the negative pressure generator inside the drive seat 13 is in a closed state. The rotary table 21 of the conveying section 2 remains stationary. The four connecting rods 22 drive the four placement frames 23 to accurately correspond to the loading station, the identification and detection station, the direction-changing and photographing station, and the unloading station, respectively. The support plates 24 in the four placement frames 23 are all in an initial closed state (the straight edges of the two semi-circular support plates 24 are in contact, the limiting block 253 is located in the lower position in the vertical groove 252, and the lower surface of the support plate 24 is in contact with the limiting step 233). The suction hole 241 does not generate negative pressure. The transmission block 256 is at the lowest point within its stroke range. At this time, the groove 2561 of the transmission block 256 is in a ready-to-connect state. The push rod 33 of the unloading part 3 is in a retracted state, the push plate 331 is away from the hinge of the first rotating rod 321 and the second rotating rod 322, and the first rotating rod 321 and the second rotating rod 322 in the unfolding part 32 are kept in a retracted state under the elastic force of the torsion spring 323, and the unloading frame 31 is in an unloaded standby state.

[0029] The process of loading the mounting paper containing the plant specimens: After the specimen mounting papers (supporting thin plant specimens) are stacked in the loading frame 16, the loading process begins. The electric slide rail drives the crossbeam 12 to move precisely above the loading frame 16. At this time, the cylinder begins to extend, driving the connecting plate 14 and the suction nozzle 15 to move downwards synchronously until the suction nozzle 15 is stably attached to the surface of the uppermost specimen mounting paper in the loading frame 16. At this point, the cylinder stops extending and maintains its current position. Subsequently, the negative pressure generator inside the drive base 13 starts, delivering negative pressure to the suction nozzle 15 through the hose. The suction nozzle 15 generates a stable negative pressure suction force, firmly adsorbing and fixing the specimen mounting paper to prevent it from falling off or being damaged during the gripping process. After adsorption is completed, the cylinder begins to retract, driving the connecting plate 14, the suction nozzle 15, and the adsorbed and fixed specimen mounting paper to return to their initial high position synchronously.

[0030] The process of identifying the orientation of the mounting paper containing plant specimens: Next, the electric slide rail drives the horizontal frame 12 to move horizontally and precisely stop above the placement frame 23 at the loading station of the conveying section 2. At this time, the placement frame 23 is in an unloaded state, the two support plates 24 are in a closed standby state, and the suction hole 241 is still not activated. The cylinder extends again, driving the connecting plate 14 and the suction nozzle 15 with the specimen paper adsorbed downwards until the specimen paper is stably attached to the upper surface of the support plate 24. Then, the negative pressure generator is turned off, the suction nozzle 15 loses negative pressure suction, and the cylinder slowly retracts and resets. At the same time, the external negative pressure equipment of the conveying section 2 is activated, and the suction hole 241 on the support plate 24 generates a stable negative pressure, firmly adsorbing the specimen paper onto the support plate 24. At this time, the loading section 1 and the conveying section 2 achieve precise cooperation, completing the connection from gripping to stably placing the specimen paper. The loading section 1 resets to the standby state, ready for the next gripping.

[0031] After the feeding process is completed, the drive motor of the conveyor 2 starts, driving the rotary table 21 to rotate 90 degrees at a constant speed. The rotary table 21 drives the placement frame 23 carrying the specimen paper to rotate synchronously through the connecting rod 22, accurately conveying it to the identification and detection station. At this time, the other three placement frames 23 rotate synchronously. When the placement frame 23 reaches the identification and detection station, the rotary table 21 stops rotating and remains stationary. At this time, the identification and detection head, which is preset to be electrically connected to the external control system, starts, aligns with the specimen paper in the placement cavity 231, identifies the current orientation of the specimen paper according to the position of the information label on the specimen paper, and transmits the detection signal to the external control system in real time. During this process, the suction holes 241 on the support plate 24 continuously generate negative pressure to ensure that the specimen paper is always stably adsorbed on the support plate 24 without deviation or slippage, and the placement frame 23 remains stationary. After the detection is completed, the identification and detection head stops working, and the external control system determines whether the orientation of the specimen paper is correct based on the detection signal, and at the same time sends the next action command to the rotating component 25.

[0032] The process of reversing the direction as needed and taking photos for archiving: At this time, the drive motor of the conveyor 2 starts again, driving the rotary table 21 to continue rotating 90 degrees at a constant speed, and accurately conveying the placement frame 23 to the workstation for reversing the direction and taking pictures. The rotary table 21 then stops rotating. The base 255 of the conveyor 2 has the function of driving the transmission block 256 to rotate and rise in the vertical direction. Initially, the transmission block 256 is at the lowest point within its stroke range and remains stationary. At this time, the groove 2561 of the transmission block 256 is in the docking state.

[0033] If the external control system determines that the specimen tray paper is in the correct orientation, there is no need to initiate the orientation reversal process. If the external control system determines that the specimen tray paper is not in the correct orientation, it will send a reversal command to the base 255. When the placement frame 23 is in precise position, the base 255 will activate the lifting function, driving the transmission block 256 to move vertically upward until the protrusion 251 on the lower surface of the placement frame 23 precisely matches the groove 2561 of the transmission block 256 on the base 255 (the conical structure at the bottom of the protrusion 251 can act as a guide to achieve rapid alignment and ensure a tight fit). The upper surface of the transmission block 256 will match the lower surface of the support plate 24. As the transmission block 256 continues to rise vertically, it will drive the support plate 24 and the limiting block 253 on its outer surface to move vertically upward synchronously until the limiting block 253 on the outer circumference of the support plate 24 slides from the bottom of the inner wall of the vertical groove 252 to the junction of the vertical groove 252 and the annular groove 254. The base 255 will then stop driving the transmission block 256 to rise and maintain the current height. During this process, the adsorption holes 241 on the support plate 24 maintain a negative pressure to prevent the specimen tray paper from shifting during the rotation process.

[0034] Subsequently, the base 255 activates its rotation function, driving the transmission block 256 to rotate uniformly around its own axis. The transmission block 256 drives the protrusion 251 to rotate synchronously through the groove 2561. The protrusion 251 drives the support plate 24 to rotate. Since the limiting block 253 on the outer circumference of the support plate 24 has moved from inside the vertical groove 252 to inside the annular groove 254, the support plate 24 rotates smoothly and horizontally under the limiting action of the annular groove 254. The two support plates 24 always remain in a closed state and rotate synchronously, avoiding uneven force on the specimen mounting paper. After the base 255 drives the transmission block 256 to rotate 180 degrees and stops, the limiting block 253 slides from inside the annular groove 254 to the junction of the annular groove 254 and the vertical groove 252. The support plate 24 and the specimen mounting paper remain in the correct orientation. At this time, the imaging component is activated to take pictures of the specimen mounting paper and specimen after the orientation is adjusted and archived. At the same time, the base 255 drives the transmission block 256 to complete the vertical downward reset. After the support plate 24 and the protrusion 251 at its bottom lose the upward support function of the transmission block 256, they move vertically downward under the action of gravity. The limiting block 253 slides back to the lower position of the vertical groove 252, and the lower surface of the support plate 24 contacts the upper surface of the limiting step 233 again.

[0035] The process of cutting the mounting paper that holds the plant specimens: The drive motor of the conveyor 2 drives the rotary table 21 to rotate 90 degrees at a constant speed again. The rotary table 21 drives the placement frame 23 carrying the specimen mounting paper to rotate synchronously through the connecting rod 22. When the placement frame 23 rotates to the unloading position, the rotary table 21 stops rotating and remains stationary. At this time, the placement frame 23 is located directly above the unloading frame 31, and the suction holes 241 on the support plate 24 maintain a small negative pressure suction force (to ensure that the specimen mounting paper does not shift and to facilitate smooth subsequent falling). Subsequently, the drive cylinder of the unloading section 3 is activated, driving the push rod 33 to slide upward at a constant speed. The push rod 33 drives the push plate 331 to move synchronously. The push plate 331 gradually moves upward and smoothly abuts against the hinge of the first rotating rod 321 and the second rotating rod 322. As the push rod 33 continues to advance, the push plate 331 applies a continuous pushing force to the hinge, overcoming the restoring force of the torsion spring 323, and driving the first rotating rod 321 and the second rotating rod 322 to rotate in opposite directions around the rotating axis. The first rotating rod 321 and the second rotating rod 322 respectively drive the two support plates 24 to move in opposite directions along the slide groove 232, and the two support plates 24 gradually unfold.

[0036] During this unfolding process, the suction holes 241 on the support plate 24 maintain a small negative pressure, firmly fixing the specimen mounting paper in the middle of the placement cavity 231 and preventing the specimen mounting paper from shifting as the support plate 24 moves. When the distance between the two support plates 24 is slightly less than the width of the specimen mounting paper, the negative pressure of the suction holes 241 remains unchanged. At this time, the lower surface of the middle part of the specimen mounting paper is suspended in the air, the specimen mounting paper is taut and does not contact any parts, and its middle part is suspended, directly above the feeding frame 31. As the push plate 331 continues to push, the distance between the two support plates 24 opens to the maximum. At this time, the external negative pressure device is closed, the suction holes 241 lose their negative pressure suction, and the specimen mounting paper falls smoothly into the feeding frame 31 under its own gravity (the flexible buffer layer on the inner wall of the feeding frame 31 buffers the falling impact, further protecting the specimen), and remains close to a horizontal state during the falling process.

[0037] The leaves and petals of delicate plant specimens are easily damaged by collisions, compression, and bending. If the specimen mounting paper falls at an angle, one side may fall into the feeding frame 31 first, generating an oblique impact force that crushes the plant specimen already in the feeding frame 31 and causing damage. However, when falling in a near-horizontal state, the entire lower surface of the specimen mounting paper can simultaneously and smoothly contact the plant specimen already in the feeding frame 31 and above it. The impact force is evenly distributed, preventing excessive local stress and effectively avoiding bending of the specimen mounting paper and crushing damage to the specimen, thus maximizing the protection of the integrity of the delicate plant specimen.

[0038] After the material is unloaded, the drive cylinder of the unloading section 3 starts in reverse, driving the push rod 33 to retract and reset. The push plate 331 gradually disengages from the hinge of the first rotating rod 321 and the second rotating rod 322. At this time, under the reset force of the torsion spring 323, the unfolding part 32 drives the first rotating rod 321 and the second rotating rod 322 to rotate in opposite directions and reset, thereby driving the two support plates 24 to move towards each other and return to the initial closed state, waiting for the next unloading.

[0039] At the same time, the drive motor of the conveyor 2 starts again, driving the rotary table 21 to continue rotating 90 degrees at a constant speed. The empty placement frame 23 rotates to the loading station, ready to receive the next specimen paper conveyed by the loading unit 1. The other three placement frames 23 rotate synchronously, corresponding to the identification and detection station, the direction adjustment and photography station, and the unloading station, respectively, repeating the entire process of loading, direction identification, direction adjustment (as needed), and unloading.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A light and thin plant specimen conveying apparatus of a negative pressure adsorption fixing structure, characterized in that, include: The feeding section (1) includes a base (10), a vertical frame (11) is fixedly installed on the upper surface of the base (10), a horizontal frame (12) is horizontally slidably connected to the vertical frame (11) through an electric slide rail opened on its upper surface, a drive seat (13) is fixedly installed in the middle of the horizontal frame (12), a connecting plate (14) is connected to the drive seat (13) through a cylinder set on its lower surface, a suction nozzle (15) is embedded in the interior of the connecting plate (14), and a feeding frame (16) is fixedly installed on the upper surface of the base (10) below the horizontal frame (12). The conveying unit (2) includes a rotating table (21). A connecting rod (22) is fixedly connected to the outer circumference of the rotating table (21). A placement frame (23) is fixedly connected to one end of the connecting rod (22) away from the rotating table (21). A placement cavity (231) is opened in the middle of the placement frame (23). A support plate (24) is provided inside the placement cavity (231). An adsorption hole (241) is opened on the upper surface of the support plate (24). A rotating component (25) is provided inside the placement cavity (231).

2. The thin plant specimen conveying device of claim 1, wherein: It also includes a feeding section (3), which includes a feeding frame (31). The feeding frame (31) is fixedly installed on the upper surface of the base (10). The placement frame (23) has a sliding groove (232) inside. The lower surface of the support plate (24) is provided with an unfolding member (32).

3. The thin plant specimen conveying device of claim 2, wherein: There are two support plates (24), which are symmetrically distributed around the connecting rod (22). The support plates (24) adopt a semi-circular structure. The lower surface of the placement frame (23) is fixedly installed with a limiting step (233) that fits against the lower surface of the placement frame (23).

4. The thin plant specimen conveying device of claim 3, wherein: The rotating component (25) includes a protrusion (251), the top of which is fixedly connected to the lower surface of the support plate (24). The bottom of the protrusion (251) adopts a conical structure design. A vertical groove (252) is provided inside the placement frame (23). A limiting block (253) that fits against the inner wall surface of the vertical groove (252) is fixedly connected to the outer circumference of the support plate (24). An annular groove (254) that communicates with the inner surface of the vertical groove (252) is provided inside the placement frame (23).

5. The thin plant specimen conveying device of claim 1, wherein: The rotating table (21) is provided with a base (255) on the side away from the loading frame (16). A transmission block (256) is connected to the upper surface of the base (255). A groove (2561) is provided on the upper surface of the transmission block (256) to fit with the outer circumference of the protrusion (251).

6. The thin plant specimen conveying device of claim 4, wherein: The unfolding component (32) includes a rotating rod one (321), which is rotatably connected to a rotating rod two (322) through a rotating shaft set inside it. The outer circumferential surface of the rotating shaft is fitted with a torsion spring (323) connected to the inside of the rotating rod two (322). The rotating rod one (321) and the rotating rod two (322) are symmetrically distributed around the rotating shaft. The outer ends of the rotating rod one (321) and the rotating rod two (322) are respectively hinged to the lower surfaces of the two support plates (24).

7. The thin plant specimen conveying device of claim 2, wherein: The upper surface of the feeding frame (31) is slidably connected to a push rod (33), and the top end of the push rod (33) is fixedly connected to a push plate (331).

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