Citrus seedling screening device

Abstract

This utility model discloses a seedling screening device for citrus cultivation, including a base, a fixed shell mounted on the top of the base, a screening and detection component inside the fixed shell, and a conveyor belt mounted on the left side of the top of the base. This utility model achieves three-dimensional detection of seedling morphology and physiological indicators through the coordinated operation of the screening and detection component's camera body, chlorophyll detector, infrared distance sensor, and dual root scanner. It can obtain information on leaf diseases and pests, chlorophyll content, plant height, and root branching number, improving the screening effect. A first electric push rod drives a silicone clamp to automatically clamp the stem, and a pressure sensor monitors the clamping force in real time, avoiding damage to the seedling while ensuring stable detection position. A drive transfer component facilitates the transfer of the completed transparent shell along with the seedling to the corresponding conveyor belt for classification and transportation, improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of seedling screening technology, specifically a seedling screening device for citrus cultivation. Background Technology

[0002] Citrus, also known as mandarin orange, orange, tangerine, etc., is a small tree belonging to the genus Citrus in the family Rutaceae. In the process of citrus cultivation, seedling selection is a key step in ensuring the quality of mature plants.

[0003] Traditional screening relies on manual visual inspection of seedling height and leaf quantity, which not only increases labor costs but also leads to low work efficiency. Screening equipment is sometimes used to screen seedlings.

[0004] For example, application number CN202323468331.1 discloses a potato seedling screening device, which includes a base, an isolation plate fixedly connected to the top of the base, an experimental platform fixedly connected to the base on the side of the isolation plate, a culture tank placed inside the experimental platform, and a through hole opened at the bottom of the culture tank.

[0005] The screening devices in the above cases only use cameras for morphological detection and cannot obtain physiological indicators such as chlorophyll content and root development. The rate of missing seedlings carrying latent diseases and pests is relatively high. Traditional equipment is mostly static detection and cannot be adapted to assembly line operations. Moreover, it cannot separate and transport the seedlings after screening, which reduces flexibility and requires manual secondary sorting and transportation later. Therefore, we provide a seedling screening device for citrus planting. Utility Model Content

[0006] The purpose of this invention is to provide a seedling screening device for citrus cultivation to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a seedling screening device for citrus planting, comprising a base, a fixed shell installed on the top of the base, a screening and detection component disposed inside the fixed shell, a conveyor belt installed on the left side of the top of the base, the right side of the conveyor belt penetrating the fixed shell and extending to its exterior, the conveyor belt being connected by two belt drives, a limit placement component disposed on the belt, and a drive transfer component disposed on the right side of the fixed shell.

[0008] Preferably, the screening and detection component includes a mounting plate, which is installed on the inner wall of the fixed shell. From left to right, a camera body and a chlorophyll detector are respectively installed on the bottom of the mounting plate. A fixed door is movably connected to the front of the fixed shell via a hinge. Infrared ranging sensors are installed on the back of the inner wall of the fixed shell and the back of the fixed door. Root scanners are installed on the right side of the back of the inner wall of the fixed shell and the right side of the back of the fixed door.

[0009] Preferably, the limiting placement component includes connecting blocks, the number of which is several and they are respectively installed between the two belts, a support block is installed on the top of the connecting blocks, and a pluggable transparent shell is provided on the top of the support blocks.

[0010] Preferably, a first electric push rod is installed on both the left and right sides of the transparent shell. The output end of the first electric push rod passes through the transparent shell and extends into it to install a pressure sensor. A silicone clamp is installed on the pressure sensor. A slot is opened at the bottom of the transparent shell, and a plug that matches the slot is installed on the top of the support block.

[0011] Preferably, the drive transfer assembly includes a fixing plate, which is installed on the right side of the fixing shell. Two second electric push rods are installed at the bottom of the fixing plate, and the bottom ends of the two electric push rods are fixedly connected by a horizontal plate. A sliding groove is provided at the bottom of the horizontal plate.

[0012] Preferably, a third electric push rod is installed on the back of the horizontal plate. The front end of the third electric push rod passes through the slide groove and extends into it to install a slider. A concave block is installed at the bottom of the slider. A fourth electric push rod is installed at the bottom of both sides of the concave block. The output end of the fourth electric push rod passes through the concave block and extends outward to install an extension block. A lifting block is installed on the extension block.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes a screening and detection component consisting of a camera body, a chlorophyll detector, an infrared ranging sensor, and a dual root scanner to achieve three-dimensional detection of seedling morphology and physiological indicators. It can obtain information on leaf diseases and pests, chlorophyll content, plant height, and the number of root branches, thus improving the detection and screening effect. The first electric push rod drives the silicone clamp to automatically clamp the stem, and the pressure sensor monitors the clamping force in real time, avoiding damage to the seedling while ensuring a stable detection position. By setting up a drive transfer component, the transparent shell after detection can be easily transferred along with the seedling to the corresponding conveyor belt for classified transport, improving work efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the fixed shell, conveyor belt, and limiting placement component of this utility model; Figure 3 This is a structural cross-sectional view of the front view of this utility model; Figure 4 This is a structural cross-sectional view of the front view of the limiting and placing component of this utility model; Figure 5 This is a structural cross-sectional view of the drive transfer component of this utility model from the front view. Figure 6 This is a structural cross-sectional view of the horizontal plate and the third electric push rod of this utility model from the side view.

[0015] In the diagram: 1. Base, 100. Fixed shell, 101. Conveyor belt, 102. Belt, 2. Screening and detection assembly, 21. Mounting plate, 22. Camera body, 23. Chlorophyll detector, 24. Fixed door, 25. Infrared distance sensor, 26. Root scanner, 3. Limiting placement assembly, 31. Connecting block, 32. Support block, 33. Transparent shell, 34. First electric push rod, 35. Pressure sensor, 36. Silicone clamp, 37. Slot, 38. Insertion block, 4. Drive transfer assembly, 41. Fixed plate, 42. Second electric push rod, 43. Horizontal plate, 44. Slide groove, 45. Third electric push rod, 46. Slider, 47. Concave block, 48. Fourth electric push rod, 49. Extension block, 410. Lifting block, 5. Iron block, 6. Magnet, 7. Slide rod, 8. Qualified transmission assembly, 9. Unqualified transmission assembly. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-6 A seedling screening device for citrus cultivation includes a base 1, a fixed shell 100 fixedly connected to the top of the base 1, a screening and detection component 2 disposed inside the fixed shell 100, a conveyor belt 101 fixedly connected to the left side of the top of the base 1, the right side of the conveyor belt 101 passing through the fixed shell 100 and extending to its outside, the conveyor belt 101 being driven and connected by two belts 102, a limit placement component 3 disposed on the belts 102, and a drive transfer component 4 disposed on the right side of the fixed shell 100.

[0018] From back to front, qualified transmission component 8 and unqualified transmission component 9 are fixedly connected to the top right side of the base 1. Both qualified transmission component 8 and unqualified transmission component 9 are made of a conveyor belt.

[0019] The screening and detection component 2 includes a mounting plate 21, which is installed on the inner wall of the fixed housing 100. From left to right, the bottom of the mounting plate 21 is fixedly connected to a camera body 22 and a chlorophyll detector 23, respectively. The front of the fixed housing 100 is movably connected to a fixed door 24 via a hinge. The back of the inner wall of the fixed housing 100 and the back of the fixed door 24 are both fixedly connected to an infrared ranging sensor 25. The right side of the back of the inner wall of the fixed housing 100 and the right side of the back of the fixed door 24 are both fixedly connected to a root scanner 26.

[0020] The top of the mounting plate 21 is fixedly connected to the battery and the PCL controller from left to right.

[0021] The limiting placement component 3 includes connecting blocks 31, a plurality of which are respectively installed between two belts 102. A support block 32 is fixedly connected to the top of each connecting block 31. A pluggable transparent shell 33 is provided on the top of each support block 32. The transparent shell 33 is made of optical-grade PMMA material. First electric push rods 34 are fixedly connected to both sides of the transparent shell 33. The output end of each first electric push rod 34 passes through the transparent shell 33 and extends into it, where a pressure sensor 35 is fixedly connected. A silicone clamp 36 is fixedly connected to the pressure sensor 35. The transparent shell 33... A slot 37 is provided at the bottom. The top of the support block 32 is fixedly connected to an insert block 38 that is compatible with the slot 37. The top of the insert block 38 passes through the slot 37 and extends into it, where an iron block 5 is fixedly connected. The top of the inner wall of the slot 37 is fixedly connected to a magnet 6 that attracts the iron block 5. By setting the iron block 5 and the magnet 6, the stability of the insert block 38 when inserted into the slot 37 is improved, thereby ensuring the stability of the transparent shell 33 when it moves. By setting the pressure sensor 35 and the silicone clamp 36, the clamping force of the clamp is prevented from being too large and causing damage to the rootstock, thus achieving the effect of protecting it.

[0022] The drive transfer assembly 4 includes a fixing plate 41, which is installed on the right side of the fixing housing 100. Two second electric push rods 42 are fixedly connected to the bottom of the fixing plate 41. The bottom ends of the two second electric push rods 42 are fixedly connected through a horizontal plate 43. A groove 44 is provided at the bottom of the horizontal plate 43. A third electric push rod 45 is fixedly connected to the back of the horizontal plate 43. The front end of the third electric push rod 45 passes through the groove 44 and extends into it, where a slider 46 is fixedly connected. A recess 47 is fixedly connected to the bottom of the slider 46. A fourth electric push rod 48 is fixedly connected to the bottom of both sides of the recess 47. The output end of the fourth electric push rod 48 passes through the recess 47 and extends outwards, where an extension block 49 is fixedly connected. A lifting block 410 is fixedly connected to the extension block 49.

[0023] A slide rod 7 is fixedly connected to the back of the inner wall of the slide groove 44. The front end of the slide rod 7 passes through the slider 46 and extends to its outside and is fixedly connected to the inner wall of the slide groove 44. By setting the slide rod 7, the stability of the slider 46 when moving back and forth is improved.

[0024] Camera body 22: USB 3.0 for image data transmission; Chlorophyll detector 23: 4-20mA current signal output SPAD value; Infrared range sensor 25: TTL level output distance data; Root scanner 26: Gigabit Ethernet for image transmission. The camera body 22, chlorophyll detector 23, infrared range sensor 25, root scanner 26, first electric actuator 34, pressure sensor 35, second electric actuator 42, third electric actuator 45, fourth electric actuator 48, and conveyor belt 101 are electrically connected to the PLC controller. The PLC controller, model S7-1200, controls the electric actuators through the PN interface, and is powered by a battery.

[0025] By having the camera body 22, chlorophyll detector 23, infrared ranging sensor 25, and dual root scanner 26 of the screening and detection component 2 work together, a three-dimensional detection of seedling morphology and physiological indicators can be achieved. It can obtain information on leaf diseases and pests, chlorophyll content, plant height, and root branching, thus improving the detection and screening effect. The first electric push rod 34 drives the silicone clamp 36 to automatically clamp the stem, and the pressure sensor 35 monitors the clamping force in real time to avoid damaging the seedling and ensure the stability of the detection position. By setting up the drive transfer component 4, the transparent shell 33 after detection can be easily transferred along with the seedling to the corresponding conveyor belt for classification and transportation, thus improving work efficiency.

[0026] When in use, place the roots of the citrus seedling into the transparent shell 33, manually align the slot 37 at the bottom of the transparent shell 33 with the insert block 38 of the support block 32, and insert it. The iron block 5 and the magnet 6 are attracted and fixed. Start the first electric push rod 34, and the silicone clamp 36 clamps the stem of the seedling with a pressure of 0.8N. The pressure sensor 35 provides real-time feedback. The conveyor belt 101 is started, and the belt 102 drives the limiting placement component 3 into the fixed shell 100 at a speed of 1m / min. The camera body 22 captures leaf images at 10 frames / second to identify disease and pest spots. The chlorophyll detector 23 emits a 650nm / 940nm light beam to measure the SPAD value of the leaf. Two infrared distance sensors 25 emit light beams simultaneously and calculate the plant height through triangulation. Two root scanners 26 capture root images from the front and back. A 1000DPI linear array CCD identifies the number of fibrous roots and damage. The detection data is transmitted to the PLC controller and compared with the preset standards, such as a plant height of 15-25cm, SPAD≥45, and fibrous roots≥10. After the test is completed, the limiting placement component 3 moves to the front of the lifting block 410, and the third electric push rod 45 is activated. The third electric push rod 45 drives the slider 46 to move forward. The slider 46 drives the lifting block 410 to the bottom of the transparent shell 33 through the concave block 47. Then the fourth electric push rod 48 is activated, so that the two lifting blocks 410 move closer to each other to clamp the transparent shell 33. The second electric push rod 42 is activated again, so that the second electric push rod 42 drives the horizontal plate 43 and the lifting block 410 to move upward, so that the transparent shell 33 drives the slot 37 to separate from the insertion block 38. Then the third electric push rod 45 is activated again, so that the third electric push rod 45 drives the transparent shell 33 and the seedling to move forward through the lifting block 410. Qualified seedlings are transferred by the drive transfer component 4 to the qualified transfer component 8 and then transported to the right via the conveyor belt. Unqualified seedlings are transferred by the drive transfer component 4 to the unqualified transfer component 9 and then transported to the right via the conveyor belt. The conveyor belt transports the seedlings at a speed of 0.8 m / min. The seedlings are collected manually at the end. At the same time, when the drive transfer component 4 lifts the transparent shell 33, the conveyor belt 101 can pause for a few seconds. After the transparent shell 33 is removed from the support block 32, the conveyor belt 101 is restarted.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seedling screening device for citrus cultivation, characterized in that: Includes a base (1), a fixed shell (100) is installed on the top of the base (1), a screening and detection component (2) is provided inside the fixed shell (100), a conveyor belt (101) is installed on the left side of the top of the base (1), the right side of the conveyor belt (101) passes through the fixed shell (100) and extends to its outside, the conveyor belt (101) is connected by two belts (102) for transmission, a limit placement component (3) is provided on the belt (102), and a drive transfer component (4) is provided on the right side of the fixed shell (100).

2. The seedling screening device for citrus cultivation according to claim 1, characterized in that: The screening and detection component (2) includes a mounting plate (21), which is mounted on the inner wall of the fixed shell (100). From left to right, the bottom of the mounting plate (21) is equipped with a camera body (22) and a chlorophyll detector (23). The front of the fixed shell (100) is connected to a fixed door (24) by a hinge. Infrared ranging sensors (25) are installed on the back of the inner wall of the fixed shell (100) and the back of the fixed door (24). Root scanners (26) are installed on the right side of the back of the inner wall of the fixed shell (100) and the right side of the back of the fixed door (24).

3. The citrus seedling screening device according to claim 2, characterized in that: The limiting placement component (3) includes a connecting block (31), and the number of connecting blocks (31) is several and they are respectively installed between two belts (102). A support block (32) is installed on the top of the connecting block (31), and a pluggable transparent shell (33) is provided on the top of the support block (32).

4. The citrus seedling screening device according to claim 3, characterized in that: The transparent shell (33) is equipped with a first electric push rod (34) on both the left and right sides. The output end of the first electric push rod (34) passes through the transparent shell (33) and extends into it to install a pressure sensor (35). A silicone clamp (36) is installed on the pressure sensor (35). A slot (37) is opened at the bottom of the transparent shell (33). A plug (38) that matches the slot (37) is installed on the top of the support block (32).

5. The citrus seedling screening device according to claim 4, characterized in that: The drive transfer assembly (4) includes a fixing plate (41), which is installed on the right side of the fixing shell (100). Two second electric push rods (42) are installed at the bottom of the fixing plate (41). The bottom ends of the two second electric push rods (42) are fixedly connected by a horizontal plate (43). A groove (44) is provided at the bottom of the horizontal plate (43).

6. The citrus seedling screening device according to claim 5, characterized in that: A third electric push rod (45) is installed on the back of the horizontal plate (43). The front end of the third electric push rod (45) passes through the slide groove (44) and extends into it to install a slider (46). A recess (47) is installed at the bottom of the slider (46). A fourth electric push rod (48) is installed at the bottom of both sides of the recess (47). The output end of the fourth electric push rod (48) passes through the recess (47) and extends to its outside to install an extension block (49). A lifting block (410) is installed on the extension block (49).

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