Agricultural product inspection device and method

Abstract

This invention provides a testing device and method for medicinal agricultural products. It relates to the field of medicinal agricultural product testing technology and includes a conveyor belt, a first mounting frame, a lifting frame, an auxiliary frame, a quantity detection mechanism, and a lifting mechanism. The first mounting frame is mounted on the conveyor belt, and grooves are formed inside both sides of the first mounting frame. The lifting frame is slidably mounted inside the grooves, and the auxiliary frame is fixed to the top of the lifting frame. This invention uses a lifting rack and pinion to control a rotating gear to achieve the reciprocating rotating motion of the laser scanner, which rotates the vertical laser array to form a fixed-range fan-shaped laser array. Therefore, product testing is not performed through a single-sided array, but rather within a certain range of the array. Thus, it eliminates the need to adjust the conveyor belt speed, allowing for the testing of large quantities and high-density medicinal agricultural products, effectively improving testing quality, avoiding errors, and facilitating subsequent packaging and sorting.

Description

Technical Field

[0001] This invention relates to the field of medicinal agricultural product testing technology, and in particular to a testing device and testing method for medicinal agricultural products. Background Technology

[0002] Medicinal agricultural products refer to plant products that have both medicinal value and agricultural product attributes. They can be used as raw materials for traditional Chinese medicine, as well as as food or functional ingredients, such as raw materials for Chinese medicine (e.g., astragalus and wolfberry) and products that are both food and medicine (e.g., red dates and yams).

[0003] Visual inspection of medicinal agricultural products on conveyor belts is a highly automated process that requires machine vision technology, image processing, and automated control to quickly, objectively, and non-destructively assess the quality of agricultural products (such as size, shape, color, surface defects, maturity, etc.).

[0004] However, in existing technologies, fixed laser scanning is often used. When detecting smaller medicinal agricultural products such as goji berries or red ginseng, the product passes through the laser on the conveyor belt for a very short time, which can easily lead to detection errors and affect subsequent sorting and packaging.

[0005] Therefore, it is necessary to provide a testing device and method for medicinal agricultural products to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention provides a testing device and method for medicinal agricultural products, which solves the technical problem in related technologies that errors easily occur when testing small-sized products, affecting subsequent processes.

[0007] To solve the above-mentioned technical problems, the present invention provides a testing device for medicinal agricultural products, including a conveyor belt, a first mounting frame, a lifting frame, an auxiliary frame, a quantity detection mechanism, and a lifting mechanism;

[0008] The first mounting frame is installed on the conveyor belt. The two sides of the first mounting frame are provided with sliding grooves. The lifting frame is slidably installed in the sliding grooves. The auxiliary frame is fixed to the top of the lifting frame.

[0009] The quantity detection mechanism includes a mounting cylinder, a tilting gear, and a laser scanner. The mounting cylinder is installed on the inner wall of the lifting frame. A rotating shaft is rotatably connected to the inner axis of the mounting cylinder. A turntable is connected to the pivot of the rotating shaft via a keyway. A positioning cylinder is installed on the outer flange of the turntable. A fixing frame is fixed to the outer wall of the positioning cylinder. The tilting gear is installed inside the fixing frame. The top surface of the laser scanner is bolted to the bottom surface of the fixing frame. A torsion spring is sleeved on the outer wall of the rotating shaft inside the mounting cylinder.

[0010] The lifting mechanism includes an electric cylinder, a pressure plate, a first slide rod, and a second slide rod. The electric cylinder is mounted on the top of the first mounting frame, and the pressure plate is fixed to the output end of the electric cylinder. The first slide rod and the second slide rod are slidably connected inside the auxiliary frame. A top plate is fixed to the top of the first slide rod and the second slide rod. A return spring is sleeved on the outer wall of the second slide rod. A top plate is fixed to the top of the first slide rod and the second slide rod. A horizontal plate is fixed to the bottom of the second slide rod. A lifting rack is installed at the bottom of the horizontal plate. A knob is threaded onto the outer wall of the auxiliary frame.

[0011] Preferably, the lifting rack and the tilting gear mesh with each other, and the left and right ends of the torsion spring are in contact with the rotating shaft and the inner wall of the mounting cylinder.

[0012] Preferably, the lower surface of the pressure plate and the upper surface of the top plate are in contact with each other, the upper and lower ends of the return spring are in contact with the top plate and the auxiliary frame, the lifting rack runs through the entire lifting frame, and one end of the knob extends to the outer wall of the first slide rod and is subjected to force by the first slide rod.

[0013] Preferably, visual inspection agencies are also included;

[0014] A second mounting frame is installed on the conveyor belt and on one side of the first mounting frame. The vision inspection mechanism includes a side plate, a drive pulley, and a first gear. The side plate is installed on the side wall of the second mounting frame. The drive pulley and the first gear are rotatably connected to the side plate. A second gear, a third gear, and a double-groove pulley are rotatably connected to the side wall of the second mounting frame and above the side plate. A driven pulley is connected to the shaft of the second gear via a keyway. A first belt is fitted on the outer wall of the driven pulley and the double-groove pulley. A second belt is fitted on the outer wall of the drive pulley and the double-groove pulley. A first supplementary light and a second supplementary light are rotatably connected inside the second mounting frame. An industrial camera is installed inside the second mounting frame and on the opposite side of the first and second supplementary lights. A data processing box is mounted above the second mounting frame.

[0015] The side wall of the lifting frame is fitted with a partition by a locking pin, and the outer wall of the partition is fitted with a trigger rack by a locking pin. The inside of the first mounting frame and on both sides of the auxiliary frame are through pins, and the pins extend into the inside of both sides of the auxiliary frame.

[0016] Preferably, the second gear and the third gear mesh with each other, the drive pulley and the shaft of the first gear are connected by a keyway, the shaft of the third gear is connected by a keyway to the hinge of the first fill light and the second mounting bracket, and the shaft of the double-groove pulley is connected by a keyway to the hinge of the second fill light and the second mounting bracket.

[0017] Preferably, the trigger rack and the first gear are adapted to each other, and the trigger rack and the first gear are at the same level.

[0018] Preferably, it further includes a clamping plate and a reciprocating rod. The clamping plate is fixed to the side wall of the first mounting frame. The reciprocating rod is slidably connected inside the clamping plate. A baffle is fixed to the outer wall of the reciprocating rod. A limiting spring is sleeved on the outer wall of the reciprocating rod between the baffle and the clamping plate. A trigger rod is fixed to the top of the reciprocating rod.

[0019] Preferably, the bottom end of the reciprocating rod extends to the upper surface of the conveyor belt, and the top end of the trigger rod is located below the pressure plate and on both sides of the top plate.

[0020] A method for detecting medicinal agricultural products includes the following steps:

[0021] S1; When testing small medicinal agricultural products such as wolfberries:

[0022] The user needs to feed the product evenly on the conveyor belt, and then the conveyor belt will transport the product towards the first mounting frame. Then the user will start the electric cylinder to control the lifting and lowering of the pressure plate and the top plate to achieve the reciprocating lifting and lowering motion of the lifting rack. The reciprocating lifting rack meshes and drives the flipping gear to drive the laser scanner from the vertical state to flip, thereby realizing the formation of a fan-shaped laser array by the laser scanner.

[0023] S2: When a product touches the laser through the fan-shaped laser array, the laser generates a photoelectric signal. The photoelectric signal is transmitted to the central processing unit through the sensing unit. Each product that passes through the laser will generate a photoelectric signal of a certain frequency. The generated photoelectric signals are judged, identified and counted by a counter, so the quantity of products conveyed on the conveyor belt can be detected.

[0024] After the quantity inspection is completed, the smaller products are transferred to the second mounting rack. At this time, the user needs to start the industrial camera. The vertically downward industrial camera will take pictures of the products on the conveyor belt for visual inspection. During the inspection process, the first and second supplementary lights need to be turned on for supplementary lighting.

[0025] S3; When testing large-volume medicinal agricultural products:

[0026] The user needs to separate the sliding pin from the auxiliary frame, manually lower the first slide bar to control the lifting rack to descend and drive the flip gear to adjust the angle of the laser scanner. The user can freely change the angle according to the size of the medicinal agricultural product to be detected, and then lower the lifting frame.

[0027] S4: At this time, the laser scanner will generate a fixed laser array on the conveyor belt. When large-volume medicinal agricultural products pass through the laser array, the number of lasers can be detected. Because large-volume medicinal agricultural products have low density and small quantity, passing through a fixed laser array is sufficient to achieve detection.

[0028] During the descent switching process of the lifting frame, the trigger rack can be linked to realize the forward and reverse rotation of the double-groove pulley and the third gear, so that the first supplementary light illuminates the right side of the product and the second supplementary light illuminates the left side of the product, thereby realizing all-round illumination of the outline of large agricultural products and ensuring that industrial camera inspection can be more accurate.

[0029] Compared with related technologies, the detection equipment and method for medicinal agricultural products provided by this invention have the following beneficial effects:

[0030] Compared to traditional quantity detection methods, this invention employs a rotating gear and a lifting rack to mesh. Initially, the laser emitter is vertically positioned. When detecting small medicinal agricultural products like goji berries, which are characterized by high density and quantity, a fixed laser scanner results in short contact time between the product and the laser, easily leading to quantity detection errors. This invention uses a lifting rack to control the rotating gear, enabling the laser scanner to reciprocate and rotate, transforming the vertical laser array into a fixed-range fan-shaped laser array. This allows for product detection not only through a single-sided array but also within a certain array range. Therefore, adjusting the conveyor belt speed is unnecessary, allowing for the detection of large quantities and high-density medicinal agricultural products, effectively improving detection quality, avoiding errors, and facilitating subsequent packaging and sorting. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the optimal structure for the present invention;

[0033] Figure 2 for Figure 1 The enlarged structural diagram at point A is shown below;

[0034] Figure 3 for Figure 1 The diagram shows the back structure.

[0035] Figure 4 for Figure 1 The diagram shows the installation positions of the lifting mechanism and the quantity detection mechanism.

[0036] Figure 5 for Figure 4 The diagram shown is a cross-sectional view of the quantity detection mechanism.

[0037] Figure 6 for Figure 4 A detailed connection diagram of the lifting rack and the tilting gear is shown below.

[0038] Figure 7 This is a side view of the laser generator and the transmission belt in laser contact, as provided by the present invention.

[0039] Figure 8 This is a schematic diagram of the workflow of the quantity detection mechanism provided by the present invention, wherein... Figure 8 (a) is a schematic diagram of the laser generator in its initial working state with the vertical direction, and (b) is a schematic diagram of the laser generator in its working state with the clockwise rotation.

[0040] Figure 9 This is a schematic diagram of the lifting frame's descent switching working mode provided by the present invention;

[0041] Figure 10 for Figure 9 The diagram shows the disassembled structure of the trigger rack, partition, and lifting frame.

[0042] Figure 11 for Figure 1 The diagram shows the structure of the visual inspection mechanism.

[0043] Figure 12 for Figure 11 The diagram shows the structure viewed from below.

[0044] Figure 13 for Figure 11 The diagram shows the working state of the linkage control during the descent of the trigger rack, in which the double-groove pulley rotates counterclockwise and the third gear rotates clockwise.

[0045] Figure 14 A schematic diagram of the industrial camera and laser generator detection system provided by the present invention.

[0046] Explanation of icon numbers:

[0047] 1. Conveyor belt;

[0048] 2. First mounting frame; 3. Second mounting frame; 4. Lifting frame;

[0049] 5. Quantity detection mechanism; 51. Mounting cylinder; 52. Rotating shaft; 53. Turntable; 54. Positioning cylinder; 55. Fixing frame; 56. Reversing gear; 57. Laser scanner; 58. Torsion spring.

[0050] 6. Auxiliary frame;

[0051] 7. Lifting mechanism; 71. Electric cylinder; 72. Pressure plate; 73. Knob; 74. First slide rod; 75. Second slide rod; 76. Return spring; 77. Top plate; 78. Horizontal plate; 79. Lifting rack.

[0052] 8. Visual inspection mechanism; 81. Side plate; 82. Drive pulley; 83. First gear; 84. Second gear; 85. Third gear; 86. First belt; 87. Double groove pulley; 88. Second belt; 89. First supplementary light; 810. Second supplementary light; 811. Industrial camera; 812. Driven pulley.

[0053] 9. Slide rail; 10. Data processing box;

[0054] 11. Clamping plate, 12. Reciprocating rod, 13. Baffle, 14. Limiting spring, 15. Pin, 16. Trigger rod, 17. Partition plate, 18. Trigger rack. Detailed Implementation

[0055] 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 a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0056] This invention provides a testing device and method for medicinal agricultural products.

[0057] First embodiment:

[0058] Please combine Figure 1 , Figure 14 , Figures 3 to 7 A testing device for medicinal agricultural products includes a conveyor belt 1, a first mounting frame 2, a lifting frame 4, an auxiliary frame 6, a quantity detection mechanism 5, and a lifting mechanism 7.

[0059] The first mounting frame 2 is mounted on the conveyor belt 1. The two sides of the first mounting frame 2 are provided with sliding grooves 9. The lifting frame 4 is slidably mounted in the sliding grooves 9. The auxiliary frame 6 is fixed to the top of the lifting frame 4.

[0060] The quantity detection mechanism 5 includes a mounting cylinder 51, a flipping gear 56, and a laser scanner 57. The mounting cylinder 51 is installed on the inner wall of the lifting frame 4. A rotating shaft 52 is rotatably connected to the inner axis of the mounting cylinder 51. A turntable 53 is connected to the keyway at the axis of the rotating shaft 52. A positioning cylinder 54 is installed on the outer flange of the turntable 53. A fixing frame 55 is fixed on the outer wall of the positioning cylinder 54. The flipping gear 56 is installed inside the fixing frame 55. The top surface of the laser scanner 57 is bolted to the bottom surface of the fixing frame 55. A torsion spring 58 is sleeved on the outer wall of the rotating shaft 52 and inside the mounting cylinder 51.

[0061] The lifting mechanism 7 includes an electric cylinder 71, a pressure plate 72, a first slide rod 74, and a second slide rod 75. The electric cylinder 71 is installed on the top of the first mounting frame 2, and the pressure plate 72 is fixed to the output end of the electric cylinder 71. The first slide rod 74 and the second slide rod 75 are slidably connected to the inside of the auxiliary frame 6. A top plate 77 is fixed to the top of the first slide rod 74 and the second slide rod 75. A return spring 76 is sleeved on the outer wall of the second slide rod 75. The top plate 77 is fixed to the top of the first slide rod 74 and the second slide rod 75. A horizontal plate 78 is fixed to the bottom of the second slide rod 75. A lifting rack 79 is installed at the bottom of the horizontal plate 78. A knob 73 is threaded onto the outer wall of the auxiliary frame 6.

[0062] Please see Figure 1 and Figure 3 During the testing process, the medicinal agricultural products to be tested need to be placed on conveyor belt 1. The product is then transported to the first mounting rack 2 and the second mounting rack 3 by starting conveyor belt 1 before testing can be carried out.

[0063] Please see Figure 7 Before testing, the user needs to start the laser scanner 57. The laser scanner 57 generates a fan-shaped laser that irradiates the conveyor belt 1 to form a laser linear array.

[0064] This invention has two detection modes. One mode can detect small medicinal agricultural products such as wolfberries, and the other mode can detect large medicinal agricultural products with many irregular surfaces such as kudzu root. This embodiment mainly focuses on the detection of small medicinal agricultural products.

[0065] Please see Figure 6 and Figure 8 In (a): In the initial state, the laser scanner 57 is in a vertical state, and the lifting rack 79 is at the top of the flip gear 56.

[0066] Please see Figure 4 , Figure 6 and Figure 8(b) During testing, the user needs to activate the electric cylinder 71 to push the bottom pressure plate 72 to reciprocate. When the pressure plate 72 moves up and down, it can abut against the force control top plate 77, which drives the first slide rod 74 and the second slide rod 75 to move up and down in the auxiliary frame 6. During the lifting and lowering motion, the first slide rod 74 and the second slide rod 75 can abut against the bottom horizontal plate 78, which drives the lifting rack 79 to move up and down. The lifting rack 79 engages with the transmission control flip gear 56, which drives the laser scanner 57 on the fixed frame 55 to rotate and flip clockwise from the vertical state. At this time, the laser grid array rotates clockwise from the vertical state to form a fan-shaped grid array.

[0067] The lifting rack 79 and the reversing gear 56 mesh with each other, and the left and right ends of the torsion spring 58 are in contact with the rotating shaft 52 and the inner wall of the mounting cylinder 51.

[0068] The lower surface of the pressure plate 72 and the upper surface of the top plate 77 are in contact with each other. The upper and lower ends of the return spring 76 are in contact with the top plate 77 and the auxiliary frame 6. The lifting rack 79 runs through the entire lifting frame 4. One end of the knob 73 extends to the outer wall of the first slide rod 74 and is subjected to force by the first slide rod 74.

[0069] Understandable: Combination Figure 6 and Figure 4 As can be seen, due to the setting of the auxiliary frame 6, the movement direction of the first slide bar 74 and the second slide bar 75 can be restricted, so that the first slide bar 74 and the second slide bar 75 can only perform vertical lifting and lowering movements. Furthermore, the design of the return spring 76 can realize the automatic reset of the top plate 77. Secondly, the lifting rack 79 passes through the auxiliary frame 6 but is not installed with the auxiliary frame 6. Therefore, the lifting rack 79 can only control the movement of the flip gear 56.

[0070] Please see Figure 5 Because of the design of the torsion spring 58, when the flip gear 56 rotates, the flip gear 56 will drive the fixed frame 55 to control the positioning cylinder 54, so that the turntable 53 drives the rotating shaft 52 to rotate passively in the mounting cylinder 51. When the rotating shaft 52 rotates, it will control the torsion spring 58 to twist, thereby realizing the laser scanner 57 to reset from the flip state to the vertical state. The torsional force formed by the torsion spring 58 can control the laser scanner 57 to automatically complete the reset of the vertical state.

[0071] The working principle of this embodiment:

[0072] S1; When testing small medicinal agricultural products such as wolfberries:

[0073] The user needs to feed the product evenly on the conveyor belt 1. The conveyor belt 1 will transport the product towards the first mounting frame 2. Then, the user will start the electric cylinder 71 to control the pressure plate 72 to lift and control the top plate 77 to achieve the reciprocating lifting motion of the lifting rack 79. The reciprocating lifting rack 79 meshes with the transmission control of the flipping gear 56 to drive the laser scanner 57 from the vertical state to flip, thereby realizing the formation of a fan-shaped laser array by the laser scanner 57.

[0074] S2: When a product passing through the fan-shaped laser array touches the laser, the laser generates a photoelectric signal. The photoelectric signal is transmitted to the central processing unit through the sensing unit. Each product passing through the laser will generate a photoelectric signal of a certain frequency. The generated photoelectric signals are judged, identified and counted by a counter, so the quantity of products conveyed on the conveyor belt 1 can be detected.

[0075] This embodiment:

[0076] Compared to traditional quantity detection methods, this invention employs a rotating gear 56 and a lifting rack 79 in mesh. Initially, the laser emitter 57 is vertically positioned. When detecting small medicinal agricultural products like goji berries, which are characterized by high density and large quantity, a fixed laser scanner would result in short contact time between the product and the laser, easily leading to quantity detection errors. This invention uses the lifting rack 79 to control the rotating gear 56, causing the laser scanner 57 to reciprocate and rotate, transforming the vertical laser array into a fixed-range fan-shaped laser array. This allows for product detection not only through a single-sided array but also within a certain array range. Therefore, adjusting the conveyor belt speed is unnecessary, enabling the detection of large quantities and high-density medicinal agricultural products, effectively improving detection quality, avoiding errors, and facilitating subsequent packaging and sorting.

[0077] Second embodiment:

[0078] Please see Figure 1 , Figure 14 , Figures 9 to 13 It also includes visual inspection agencies (8);

[0079] A second mounting frame 3 is mounted on the conveyor belt 1 and located on one side of the first mounting frame 2. The vision inspection mechanism 8 includes a side plate 81, a drive pulley 82, and a first gear 83. The side plate 81 is mounted on the side wall of the second mounting frame 3. The drive pulley 82 and the first gear 83 are rotatably connected to the side plate 81. A second gear 84, a third gear 85, and a double-groove pulley 87 are rotatably connected to the side wall of the second mounting frame 3 and above the side plate 81. The shaft of the second gear 84 is keyed to... A driven pulley 812 is connected to the second mounting bracket 3. A first belt 86 is sleeved on the outer wall of the driven pulley 812 and the double groove pulley 87. A second belt 88 is sleeved on the outer wall of the driven pulley 82 and the double groove pulley 87. A first supplementary light 89 and a second supplementary light 810 are rotatably connected inside the second mounting bracket 3. An industrial camera 811 is installed inside the second mounting bracket 3 and on the opposite side of the first supplementary light 89 and the second supplementary light 810. A data processing box 10 is mounted on top of the second mounting bracket 3.

[0080] The side wall of the lifting frame 4 is fitted with a partition 17 by a locking pin, and the outer wall of the partition 17 is fitted with a trigger rack 18 by a locking pin. The first mounting frame 2 is fitted with pins 15 through both sides of the auxiliary frame 6, and the pins 15 extend into the interior of both sides of the auxiliary frame 6.

[0081] Please see Figure 1 , Figure 3 and Figure 12 After the quantity detection of the products in the first embodiment is completed, as the conveyor belt 1 continues to move, the small products are conveyed to the second mounting frame 3 of the conveyor belt 1. At this time, the user needs to start the industrial camera 811. The vertically downward industrial camera 811 performs visual inspection of the products on the conveyor belt 1. During the inspection process, the first supplementary light 89 and the second supplementary light 810 need to be turned on for supplementary lighting.

[0082] Please see Figure 9 As can be seen from the first embodiment, the present invention can detect two different sizes of medicinal agricultural products. If it is necessary to detect large medicinal agricultural products, such as kudzu root blocks or poria cocos blocks, the user needs to pull the pin 15 on the outside of the first mounting frame 2 to separate it from the auxiliary frame 6.

[0083] Please see Figure 4 Then, manually slide the first slide bar 74 downward. As can be seen from the first embodiment, when the first slide bar 74 moves downward, the lifting rack 79 can be lowered to control the flipping gear 56 to make the laser scanner 57 flip. When the laser scanner 57 is adjusted to a suitable angle, the user needs to rotate the knob 73 to tighten and lock the first slide bar 74.

[0084] Please see Figure 9After the laser scanner 57 is adjusted, the user needs to slide the lifting frame 4 down along the slide 9. When the bottom of the lifting frame 4 moves to the bottom of the slide 9, the lifting frame 4 will be automatically restricted and blocked.

[0085] The working principle of this embodiment:

[0086] S1; When testing large-volume medicinal agricultural products:

[0087] The user needs to separate the sliding pin 15 from the auxiliary frame 6, manually lower the first slide bar 74 to control the lifting rack 79 to descend and drive the flip gear 56 to adjust the angle of the laser scanner 57. The user can freely change the angle according to the size of the medicinal agricultural product to be detected, and then lower the lifting frame 4.

[0088] S2: At this time, the laser scanner 57 will generate a fixed laser array on the conveyor belt 1. When large-volume medicinal agricultural products pass through the laser array, the number of lasers can be detected. Because the large-volume medicinal agricultural products have low density and small quantity, the fixed laser array is sufficient to detect them.

[0089] The second gear 84 and the third gear 85 mesh with each other. The drive pulley 82 and the first gear 83 are connected by a keyway at their shafts. The shaft of the third gear 85 is connected by a keyway at the hinge of the first fill light 89 and the second mounting bracket 3. The shaft of the double-groove pulley 87 is connected by a keyway at the hinge of the second fill light 810 and the second mounting bracket 3.

[0090] The trigger rack 18 and the first gear 83 are adapted to each other, and the trigger rack 18 and the first gear 83 are at the same level.

[0091] Please see Figure 9 When the lifting frame 4 is descending, the rack 18 will also descend synchronously with the lifting frame 4.

[0092] Please see Figure 11 and Figure 13 When the trigger rack 18 descends to the position of the first gear 83, the trigger rack 18 engages and controls the first gear 83 to rotate counterclockwise. The counterclockwise rotation of the first gear 83 drives the second belt 88 to control the double groove pulley 87 to rotate counterclockwise. Therefore, the counterclockwise rotating double groove pulley 87 can counterclockwise control the second supplementary light 810 to switch its angle counterclockwise and tilt to the right to illuminate the products on the conveyor belt 1.

[0093] At the same time, the counterclockwise rotating double-groove pulley 87 will drive the first belt 86 to control the second gear 84 to rotate counterclockwise. The counterclockwise meshing of the second gear 84 will control the third gear 85 to drive the first supplementary light 89 to rotate clockwise and tilt to the left to illuminate the product.

[0094] Finally, the large-volume medicinal agricultural products on conveyor belt 1 are visually inspected by the central industrial camera 811.

[0095] Understandable: Combination Figure 9 It can be seen that when the lowerable lifting frame 4 is lowered to the limit position, the components on the lifting frame 4 and the auxiliary frame 6 can be moved away from the electric cylinder 71. Therefore, the electric cylinder 71 will not control the movement of the lifting rack 79 when it is working.

[0096] This embodiment:

[0097] Compared to traditional designs, this invention, based on the first embodiment, allows manual selection of the lowering lifting frame 4 and manual adjustment of the flip angle of the laser scanner 57. This design enables the device to detect not only small-sized medicinal agricultural products but also large-sized medicinal agricultural products, thus achieving a greater diversity of detection varieties.

[0098] Secondly, during the descent switching process of the lifting frame 4, the rack 18 can be triggered to achieve the forward and reverse rotation of the double-groove pulley 87 and the third gear 85, so that the first supplementary light 89 illuminates the right side of the product and the second supplementary light 810 illuminates the left side of the product, thereby achieving all-round illumination of the outline of large agricultural products, ensuring that the industrial camera 811 can detect more accurately and avoiding blind spots in visual inspection due to the outline not being illuminated.

[0099] Third embodiment:

[0100] Please see Figure 1 , Figure 2 , Figure 4 , Figure 7 and Figure 9 It also includes a locking plate 11 and a reciprocating rod 12. The locking plate 11 is fixed to the side wall of the first mounting frame 2. The reciprocating rod 12 is slidably connected inside the locking plate 11. A baffle 13 is fixed to the outer wall of the reciprocating rod 12. A limiting spring 14 is sleeved on the outer wall of the reciprocating rod 12 between the baffle 13 and the locking plate 11. A trigger rod 16 is fixed to the top of the reciprocating rod 12.

[0101] The bottom end of the reciprocating rod 12 extends to the upper surface of the conveyor belt 1, and the top end of the trigger rod 16 is located below the pressure plate 72 and on both sides of the top plate 77.

[0102] Please see Figure 1 , Figure 2 and Figure 4During the operation of the first embodiment, due to the gap between the top of the trigger rod 16 and the bottom surface of the pressure plate 72, the pressure plate 72 will only come into contact with the trigger rod 16 after it descends to a certain extent and will be subjected to downward force to control the trigger rod 16. The trigger rod 16 drives the reciprocating rod 12 to control the baffle 13 to compress the limiting spring 14, thereby realizing that the reciprocating rod 12 reciprocates along the vertical direction of the clamping plate 11 to control the conveyor belt 1. When the conveyor belt 1 is subjected to a small amount of force by the reciprocating rod 12, the surface of the conveyor belt 1 will form a reciprocating jumping vibration. Especially when testing small-volume medicinal agricultural products, this vibration can vibrate and treat the piled-up products, thereby realizing the vibration and flat detection of products on the conveyor belt 1 and avoiding the accumulation phenomenon.

[0103] Please see Figure 9 When the lifting frame 4 descends from the working state in the first embodiment to the working state in the second embodiment, the lifting frame 4 moves away from the pressure plate 72. When the pressure plate 72 rises and falls, only the trigger rod 16 can be controlled to move. Therefore, the user can freely choose whether to start the electric cylinder 71.

[0104] In this embodiment, compared to the traditional design, when testing small-volume medicinal agricultural products, during the flipping motion of the laser scanner 57, the pressure plate 72 will control the trigger rod 16 to control the reciprocating rod 12 to reciprocate slightly against the force-bearing conveyor belt 1, thereby causing the conveyor belt 1 to vibrate up and down. If small-volume medicinal agricultural products accumulate on the conveyor belt 1, the vibration can eliminate the accumulation phenomenon, ensuring that the agricultural products are in a flat state during the testing process, thereby further improving the accuracy of the test, and also facilitating the transportation.

[0105] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A testing device for medicinal agricultural products, characterized in that, Includes a conveyor belt, a first mounting frame, a lifting frame, an auxiliary frame, a quantity detection mechanism, and a lifting mechanism; The first mounting frame is installed on the conveyor belt. The two sides of the first mounting frame are provided with sliding grooves. The lifting frame is slidably installed in the sliding grooves. The auxiliary frame is fixed to the top of the lifting frame. The quantity detection mechanism includes a mounting cylinder, a tilting gear, and a laser scanner. The mounting cylinder is installed on the inner wall of the lifting frame. A rotating shaft is rotatably connected to the inner axis of the mounting cylinder. A turntable is connected to the pivot of the rotating shaft via a keyway. A positioning cylinder is installed on the outer flange of the turntable. A fixing frame is fixed to the outer wall of the positioning cylinder. The tilting gear is installed inside the fixing frame. The top surface of the laser scanner is bolted to the bottom surface of the fixing frame. A torsion spring is sleeved on the outer wall of the rotating shaft inside the mounting cylinder. The lifting mechanism includes an electric cylinder, a pressure plate, a first slide rod, and a second slide rod. The electric cylinder is installed on the top of the first mounting frame, and the pressure plate is fixed to the output end of the electric cylinder. The first slide rod and the second slide rod are slidably connected to the inside of the auxiliary frame. A top plate is fixed to the top of the first slide rod and the second slide rod. A return spring is sleeved on the outer wall of the second slide rod. A horizontal plate is fixed to the bottom of the second slide rod. A lifting rack is installed at the bottom of the horizontal plate. A knob is threaded onto the outer wall of the auxiliary frame. The lifting rack and the tilting gear mesh with each other, and the left and right ends of the torsion spring are in contact with the rotating shaft and the inner wall of the mounting cylinder.

2. The testing equipment for medicinal agricultural products according to claim 1, characterized in that, The lower surface of the pressure plate and the upper surface of the top plate are in contact with each other. The upper and lower ends of the return spring are in contact with the top plate and the auxiliary frame. The lifting rack runs through the entire lifting frame. One end of the knob extends to the outer wall of the first slide rod and is subjected to force by the first slide rod.

3. The testing equipment for medicinal agricultural products according to claim 1, characterized in that, This also includes visual inspection agencies; A second mounting frame is installed on the conveyor belt and on one side of the first mounting frame. The vision inspection mechanism includes a side plate, a drive pulley, and a first gear. The side plate is installed on the side wall of the second mounting frame. The drive pulley and the first gear are rotatably connected to the side plate. A second gear, a third gear, and a double-groove pulley are rotatably connected to the side wall of the second mounting frame and above the side plate. A driven pulley is connected to the shaft of the second gear via a keyway. A first belt is fitted on the outer wall of the driven pulley and the double-groove pulley. A second belt is fitted on the outer wall of the drive pulley and the double-groove pulley. A first supplementary light and a second supplementary light are rotatably connected inside the second mounting frame. An industrial camera is installed inside the second mounting frame and on the opposite side of the first and second supplementary lights. A data processing box is mounted above the second mounting frame. The side wall of the lifting frame is fitted with a partition by a locking pin, and the outer wall of the partition is fitted with a trigger rack by a locking pin. The inside of the first mounting frame and on both sides of the auxiliary frame are through pins, and the pins extend into the inside of both sides of the auxiliary frame.

4. The testing equipment for medicinal agricultural products according to claim 3, characterized in that, The second gear and the third gear mesh with each other. The drive pulley and the first gear are connected by a keyway at their shafts. The shaft of the third gear is connected by a keyway at the hinge of the first fill light and the second mounting bracket. The shaft of the double-groove pulley is connected by a keyway at the hinge of the second fill light and the second mounting bracket.

5. The testing equipment for medicinal agricultural products according to claim 3, characterized in that, The trigger rack and the first gear are adapted to each other, and the trigger rack and the first gear are at the same level.

6. The testing equipment for medicinal agricultural products according to claim 1, characterized in that, It also includes a clamping plate and a reciprocating rod. The clamping plate is fixed to the side wall of the first mounting frame. The reciprocating rod is slidably connected inside the clamping plate. A baffle is fixed to the outer wall of the reciprocating rod. A limiting spring is sleeved on the outer wall of the reciprocating rod between the baffle and the clamping plate. A trigger rod is fixed to the top of the reciprocating rod.

7. The testing equipment for medicinal agricultural products according to claim 6, characterized in that, The bottom end of the reciprocating rod extends to the upper surface of the conveyor belt, and the top end of the trigger rod is located below the pressure plate and on both sides of the top plate.

8. A method for detecting medicinal agricultural products, characterized in that, The method for detecting medicinal agricultural products, used in the medicinal agricultural product detection equipment as described in any one of claims 1-7, includes the following steps: S1; When testing small medicinal agricultural products such as wolfberries: The user needs to feed the product evenly on the conveyor belt, and then the conveyor belt will transport the product towards the first mounting frame. Then the user will start the electric cylinder to control the lifting and lowering of the pressure plate and the top plate to achieve the reciprocating lifting and lowering motion of the lifting rack. The reciprocating lifting rack meshes and drives the flipping gear to drive the laser scanner from the vertical state to flip, thereby realizing the formation of a fan-shaped laser array by the laser scanner. S2: When a product touches the laser through the fan-shaped laser array, the laser generates a photoelectric signal. The photoelectric signal is transmitted to the central processing unit through the sensing unit. Each product that passes through the laser will generate a photoelectric signal of a certain frequency. The generated photoelectric signals are judged, identified and counted by a counter, so the quantity of products conveyed on the conveyor belt can be detected. After the quantity inspection is completed, the smaller products are transferred to the second mounting rack. At this time, the user needs to start the industrial camera. The vertically downward industrial camera will take pictures of the products on the conveyor belt for visual inspection. During the inspection process, the first and second supplementary lights need to be turned on for supplementary lighting. S3; When testing large-volume medicinal agricultural products: The user needs to separate the sliding pin from the auxiliary frame, manually lower the first slide bar to control the lifting rack to descend and drive the flip gear to adjust the angle of the laser scanner. The user can freely change the angle according to the size of the medicinal agricultural product to be detected, and then lower the lifting frame. S4: At this time, the laser scanner will generate a fixed laser array on the conveyor belt. When large-volume medicinal agricultural products pass through the laser array, the number of lasers can be detected. Because large-volume medicinal agricultural products have low density and small quantity, passing through a fixed laser array is sufficient to achieve detection. During the descent switching process of the lifting frame, the trigger rack can be linked to realize the forward and reverse rotation of the double-groove pulley and the third gear, so that the first supplementary light illuminates the right side of the product and the second supplementary light illuminates the left side of the product, thereby realizing all-round illumination of the outline of large agricultural products and ensuring that industrial camera inspection can be more accurate.

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