Nondestructive detection grading machine for large yellow croaker scales

Abstract

This invention discloses a non-destructive testing and grading machine for large yellow croaker scales, belonging to the field of aquatic product sorting technology. The grading machine of this invention includes a second conveying component, which includes a conveyor belt. The conveyor belt has at least one active rod and an array of driven rods. A vibration damping component is provided below the material input end of the conveyor belt. The vibration damping component includes a second frame. The side of the second frame has a limiting connecting plate that is rotatably connected to the driven rod. The edge of the second frame has an extension connecting plate. The bottom of the extension connecting plate has a vertical rod connected to it. The bottom of the second frame has a third frame arranged parallel to it. The third frame has an elastic element connected to the vertical rod. The sorting machine of this invention can transport fish non-destructively during the sorting process and automatically clean the conveying equipment, avoiding damage to fish scales caused by sorting that affects the accuracy and efficiency of automated sorting. It can also reduce the impact of dirt accumulation on the conveyor belt surface on the accuracy of conveying and testing.

Description

Technical Field

[0001] This invention relates to the field of aquatic product sorting technology, specifically to a non-destructive testing and grading machine for large yellow croaker scales. Background Technology

[0002] Large yellow croaker, as a marine economic fish, has a complete industrial chain of large-scale aquaculture and processing. In the processing, quality assessment, and sorting stages of large yellow croaker, scale integrity, scale density, and scale damage are visual indicators used to measure the freshness, farming quality, and processing grade of the fish. Simultaneously, for scenarios such as grading and selling large yellow croaker and pre-processing before deep processing, efficient, accurate, and non-destructive testing and grading are required. Currently, the industry generally uses manual visual sorting or mechanical tools for grading and screening large yellow croaker, which suffers from low testing efficiency, inconsistent grading standards, large human error, and the potential for secondary damage to the fish. However, visual inspection-assisted grading technologies have emerged, such as the existing patent KR102622704B1, which discloses a live fish grading system. This system uses an electronic scanner to classify live fish according to grade, including: a scanning terminal that scans the outer surface area and height (thickness) of the live fish; and a grading device that uses the scanning terminal to scan the outer surface area and height (thickness) of the live fish. For grading live fish, there are also technologies that utilize conveyor belts to improve grading efficiency, such as the existing patent technology KR102280479B1. This patent technology discloses a device for selecting fish and shellfish by weight. The device includes a force sensor for measuring the weight of the fish and a measuring device for conveying the fish and shellfish in a shellfish conveying unit. The conveying unit has a connector for completing the weight measurement, which provides current from the input unit at a relatively high position to the measuring unit at a relatively low position. A controller for automatically sorting and discharging fish operates a transfer unit and a transfer tray based on weight. However, the existing improved technology lacks a buffer structure in the feeding and conveying structure. The impact force when the organisms being graded fall onto the sorting equipment can easily cause damage to their body surface, such as damage to fish scales. Furthermore, during the grading process, scales, impurities, and water can easily adhere to the surface of the conveyor belt. If cleaning is not timely, the accumulation of dirt on the conveyor belt surface can affect the accuracy of subsequent conveying and detection. Summary of the Invention

[0003] The purpose of this invention is to provide a non-destructive testing and grading machine for large yellow croaker scales, which can transport fish without damage during the sorting process and automatically clean the conveying equipment, avoiding the problem of fish scale damage caused by sorting affecting the accuracy and efficiency of automated sorting. It can also reduce the impact of dirt accumulation on the conveyor belt surface on the accuracy of conveying and testing.

[0004] To solve the above-mentioned technical problems, the present invention specifically provides the following technical solution: a non-destructive testing and grading machine for large yellow croaker scales, comprising a second conveying assembly, the second conveying assembly including a conveyor belt, at least one active rod on the conveyor belt, and an array of driven rods, a vibration damping assembly below the material input end of the conveyor belt, the vibration damping assembly including a horizontally arranged second frame, a limiting connecting plate rotatably connected to the driven rod on the side of the second frame, an extension connecting plate on the edge of the second frame, a vertical rod perpendicularly connected to the bottom of the extension connecting plate, a third frame parallel to the second frame at the bottom, an elastic element connected to the vertical rod on the third frame, a first frame at the bottom of the third frame, and a third support at the bottom of the first frame. The elastic element is a rubber spring or a rubber column with its axis horizontally arranged and perpendicular to the vertical rod. This invention achieves stable fish transport through the conveyor belt, driving rod, and array of driven rods of the second conveying component. A vibration damping component is arranged below the material input end of the conveyor belt. The second frame, the limiting connecting plate, and the driven rod are rotatably connected. Together with the extension connecting plate, the vertical rod, the third frame, the first frame, and the third bracket, a multi-layer stable support structure is formed. Specifically, when the second conveying component vibrates due to the feeding and transport of fish, the vibration force is transmitted to the second frame through the conveyor belt and the driven rod, and then to the elastic element through the extension connecting plate and the vertical rod. The horizontally set elastic element absorbs the vibration energy through its own elastic deformation, converting the rigid vibration into flexible elastic deformation, offsetting most of the vertical and lateral vibration, and solving the problem of scale damage caused by vibration impact. In addition, the limiting connecting plate can limit the driven rod, preventing the fish's posture deviation during transport from causing vibration due to the fish's reaction.

[0005] According to one embodiment of the present invention, the bottom of the third frame is connected to the first frame via an elastic column. The present invention uses the third support as the bottom fixed base, with multiple frames arranged sequentially upwards to avoid direct transmission of vibrations generated by rigid contact during equipment operation. Furthermore, residual vibrations after being consumed by the elastic components are transmitted downwards along the third frame to the connection point between its bottom and the first frame. The elastic column at this location further absorbs and buffers the residual frame-transmitted vibrations through its own elastic deformation, further reducing the vibration intensity.

[0006] According to one embodiment of the present invention, a detection component is provided above the material input end of the conveyor belt. The detection component is positioned directly above the material input end of the conveyor belt, allowing the fish to move steadily and at a uniform speed within the detection range of the detection component. This stable conveying state prevents the fish from losing scales due to vibration, and avoids the detection component misjudging the lost scales as scale defects of the fish itself. When a fish enters the sensing range of the detection component above the material input end of the conveyor belt, the detection component is automatically triggered. Combined with the uniform conveying speed of the conveyor belt and the preset detection and acquisition frequency, the detection ensures the detection of the fish's body surface. Through high-definition imaging, it captures visual features such as the integrity, damage location, detachment area, and regularity of the fish's scales. The detection component compares, analyzes, and judges the collected raw scale data in real time with the built-in large yellow croaker scale quality grading standard threshold, identifies whether the scales are damaged, the damage level, and the corresponding quality level, and forms a scale detection judgment result for a single fish. The detection component converts the judgment result into an electrical signal and transmits it to the machine's electronic control system in real time. The electronic control system sends instructions to the subsequent grading execution components in advance based on this signal, specifically providing data for the grading actions of components such as hydraulic push rods.

[0007] According to one embodiment of the present invention, a first discharge plate and a second discharge plate are staggered on the side of the output end of the second conveying component, and the first discharge plate and the second discharge plate form an angle with the material conveying end face of the conveyor belt. The staggered arrangement of the first discharge plate and the second discharge plate allows fish of different grades to be discharged from the corresponding discharge channels, and the angle between the first discharge plate and the second discharge plate can convert the horizontal conveying force of the fish into a smooth falling guiding force, so that the fish slides smoothly down the inclined surface of the discharge plate, replacing the rigid straight-fall discharge method and avoiding secondary damage to the scales of the large yellow croaker when it falls.

[0008] According to one embodiment of the present invention, the conveyor belt has a side baffle, and the side baffle has a hydraulic push rod corresponding to the positions of the first and second discharge plates. The output end of the hydraulic push rod has a push plate. The side baffle can limit the fish body during conveying, avoiding fish body deviation and causing pushing deviation. The hydraulic push rod is linked according to the grading signal of the detection component. During the process of pushing the fish, the push plate can increase the contact area with the fish body. The push plate is preferably made of flexible material. In this way, flexible pushing force replaces rigid pushing, and the fish body is smoothly pushed to the corresponding discharge plate. With the angle scheme between the first and second discharge plates and the conveyor belt, smooth flow is achieved, which helps to further reduce the scratching and squeezing damage to the fish scales during the fish sorting and discharge process.

[0009] According to one embodiment of the present invention, the conveyor belt has a side baffle, and a slot is formed at the upper end of the side baffle. The driven rod can be inserted into the slot, and the horizontal height of the driven rod contacting the limiting connecting plate is higher than the horizontal height of the driven rod contacting the slot. The slot of the side baffle can first form a lateral limit on the driven rod, preventing it from shifting left or right during conveying and causing the conveyor belt to run off-track. Furthermore, the height difference between the two contact points makes the limiting connecting plate the main support and the slot the auxiliary limit, which can ensure the flexible rotation of the driven rod, allowing the conveyor belt to maintain a stable and uniform conveying speed, while eliminating the possibility of driven rod deviation and structural scuffing.

[0010] According to one embodiment of the present invention, a first conveying component is inclinedly arranged at the material input end of the conveyor belt. The bottom of the first conveying component is supported by a first bracket. The first conveying component has a conveying assembly, and there is a gap between the conveying assembly and the material input end of the conveyor belt. The gap is less than 1 cm. The conveying assembly of the first conveying component includes a drive motor, a drive shaft, a conveyor belt of the first conveying component, and a driven shaft. The conveying direction of the conveyor belt of the first conveying component is inclined downward, specifically inclined towards the material input end of the conveyor belt. The setting of the gap between the two helps to allow excess water to drain out through the gap during the fall of the large yellow croaker, reducing the visual detection interference of subsequent water on the detection assembly. If there are aquatic plants, debris, etc. left between the large yellow croakers, it also helps them fall through the gap.

[0011] According to one embodiment of the present invention, a cleaning assembly is provided below the material output end of the conveyor belt. The cleaning assembly has a pool body disposed below the material output end of the conveyor belt. A pump body is connected to one side of the pool body via a pipeline, and a water outlet pipe is connected to the water outlet end of the pump body, with the water outlet direction facing the conveyor belt. By arranging the cleaning assembly below the material output end of the conveyor belt, water is stored in the pool body, pressurized and supplied by the pump body, and a rinsing water flow is output to the conveyor belt through the water outlet pipe. Automatic cleaning is achieved by utilizing the continuous operation of the conveyor belt, quickly removing scales, impurities, and water stains adhering to the surface without stopping the machine. This avoids unstable conveying caused by dirt accumulation and prevents impurities from flowing back with the conveyor belt and contaminating subsequent fish, thus preventing interference with the recognition accuracy of the detection components.

[0012] According to one embodiment of the present invention, the output end of the second conveying component has a discharge plate, which has an angle with the material conveying end face of the conveyor belt, so as to convert the horizontal conveying force of the fish into a smooth inclined guiding force, allowing the graded fish to slide smoothly down the discharge plate. Attached Figure Description

[0013] To more clearly illustrate the embodiments of the present invention or the technical solutions in 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 merely exemplary, and those skilled in the art can derive other embodiments based on the provided drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a non-destructive testing and grading machine for large yellow croaker scales according to the present invention; Figure 2 This is a partial schematic diagram of a non-destructive testing and grading machine for large yellow croaker scales according to the present invention; Figure 3 This is a partial schematic diagram of a non-destructive testing and grading machine for large yellow croaker scales according to the present invention; Figure 4 This is a schematic diagram of the vibration damping component structure of the present invention; Figure 5 This is a partial structural diagram of the vibration damping component of the present invention; Figure 6 This is a schematic diagram of the cleaning assembly solution below the conveyor belt output end of the present invention; Figure 7 This is a schematic diagram of the cleaning component solution of the present invention; Figure 8 This is a schematic diagram of the cleaning component structure of the present invention; Figure 9 This is a schematic diagram of the internal structure of the cleaning component of the present invention; Figure 10 This is a schematic diagram showing the connection state between the first transmission component and the second transmission component of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 10. Second conveying assembly; 11. First drive motor; 12. Side baffle; 13. Conveyor belt; 14. Second support; 15. First discharge plate; 16. Second discharge plate; 17. Hydraulic push rod; 18. Push plate; 19. Driven rod; 20. First conveying assembly; 21. First support; 30. Vibration damping assembly; 31. Third support; 32. First frame; 33. Second frame; 34. Limiting connecting plate; 35. Extension connecting plate; 36. Elastic element; 37. Third frame; 40. Second drive motor; 41. Cleaning component; 411. Cleaning shaft; 412. Guide plate; 413. Scraper; 414. Scraper blade; 415. Insertion plate; 50. Discharge plate; 60. Cleaning assembly; 61. Pool body; 62. Pump body; 63. Water outlet pipe; 70. Detection assembly. Detailed Implementation

[0016] 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 embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] The concepts involved in this application will first be described with reference to the accompanying drawings. It should be noted that the following descriptions of various concepts are only for the purpose of making the content of this application easier to understand and do not constitute a limitation on the scope of protection of this application; furthermore, the embodiments and features in the embodiments of this application can be combined with each other unless otherwise specified. This application will now be described in detail with reference to the accompanying drawings and embodiments. Example 1

[0018] As shown in the attached figure Figure 1 - Appendix Figure 5As shown, the large yellow croaker scale non-destructive testing and grading machine includes a second conveying assembly 10, which includes a conveyor belt 13. The conveyor belt 13 has at least one active rod and an array of driven rods 19. A vibration damping assembly 30 is located below the material input end of the conveyor belt 13. The vibration damping assembly 30 includes a horizontally arranged second frame 33. The side of the second frame 33 has a limiting connecting plate 34 rotatably connected to the driven rods 19. The edge of the second frame 33 has an extension connecting plate 35. The bottom of the extension connecting plate 35 has a vertical rod vertically connected to it. The bottom of the second frame 33 has a third frame 37 parallel to it. The third frame 37 has an elastic element 36 connected to the vertical rod. The bottom of the third frame 37 has a first frame 32, and the bottom of the first frame 32 has a third support 31. The elastic element 36 is a rubber spring or a rubber column with its axis horizontally arranged and perpendicular to the vertical rod. This invention achieves stable fish transport through the conveyor belt 13, driving rod, and array of driven rods 19 of the second conveying assembly 10. A vibration damping assembly 30 is arranged below the material input end of the conveyor belt 13. The second frame 33, the limiting connecting plate 34, and the driven rod 19 are rotatably connected. Together with the extension connecting plate 35, the vertical rod, the third frame 37, the first frame 32, and the third bracket 31, a multi-layer stable support structure is formed. Specifically, when the second conveying assembly 10 vibrates due to the feeding and transport of fish, the vibration force is transmitted to the second frame 33 through the conveyor belt 13 and the driven rod 19, and then transmitted to the elastic element 36 through the extension connecting plate 35 and the vertical rod. The horizontally arranged elastic element 36 absorbs the vibration energy through its own elastic deformation, converting the hard vibration into flexible elastic deformation, offsetting most of the vertical and lateral vibration, and solving the problem of scale damage caused by vibration impact. In addition, the limiting connecting plate 34 can limit the driven rod 19 to prevent the fish from vibrating due to posture deviation during transport.

[0019] The bottom of the third frame 37 is connected to the first frame 32 via an elastic column. This invention uses the third support 31 as the bottom fixed base, with multiple frames arranged upwards in sequence to avoid direct transmission of vibrations generated by rigid contact during equipment operation. Furthermore, residual vibrations consumed by the elastic element 36 are transmitted downwards along the third frame 37 to the connection point between its bottom and the first frame 32. The elastic column at this location further absorbs and buffers the residual frame-transmitted vibrations through its own elastic deformation, further reducing the vibration intensity.

[0020] A detection component 70 is provided above the material input end of the conveyor belt 13. The detection component 70 is positioned directly above the material input end of the conveyor belt 13 to ensure that the fish moves steadily and at a uniform speed within the detection range of the detection component 70. The stable conveying state prevents the fish from losing scales due to vibration, and avoids the detection component 70 misjudging the lost scales as scale defects of the fish itself. When a fish enters the sensing range of the detection component 70 above the material input end of the conveyor belt 13, the detection component 70 is automatically triggered. Combined with the uniform conveying speed of the conveyor belt 13 and the preset detection and acquisition frequency, the detection component 70 ensures the detection of the fish's body surface. Through high-definition imaging, it captures visual features such as the integrity, damage location, detachment area, and regularity of the fish's scales. The detection component 70 compares, analyzes, and judges the collected raw scale data in real time with the built-in large yellow croaker scale quality grading standard threshold, identifies whether the scales are damaged, the damage level, and the corresponding quality level, and forms a scale detection judgment result for a single fish. The detection component 70 converts the judgment result into an electrical signal and transmits it to the machine's electronic control system in real time. The electronic control system sends instructions to the subsequent grading execution components in advance based on this signal, specifically providing data for the grading actions of components such as the hydraulic push rod 17.

[0021] The second conveying component 10 has a first discharge plate 15 and a second discharge plate 16 arranged in an alternating manner on the side of its output end. The first discharge plate 15 and the second discharge plate 16 form an angle with the material conveying end face of the conveyor belt 13. The alternating arrangement of the first discharge plate 15 and the second discharge plate 16 allows fish of different grades to be discharged from their corresponding discharge channels. Furthermore, the angle between the first discharge plate 15 and the second discharge plate 16 can convert the horizontal conveying force of the fish into a smooth downward guiding force, allowing the fish to slide smoothly down the inclined surface of the discharge plate, replacing the rigid straight-fall discharge method and avoiding secondary damage to the scales of the large yellow croaker when it falls.

[0022] The conveyor belt 13 has a side baffle 12 on its side, and a hydraulic push rod 17 on the side baffle 12 corresponding to the positions of the first discharge plate 15 and the second discharge plate 16. The output end of the hydraulic push rod 17 has a push plate 18. The side baffle 12 can limit the fish body during conveying, avoiding the fish body from deviating and causing the pushing deviation. The hydraulic push rod 17 is linked according to the grading signal of the detection component 70. During the process of pushing the fish, the push plate 18 can increase the contact area with the fish body. The push plate 18 is preferably made of flexible material, so that the flexible pushing force replaces the rigid pushing force, and smoothly pushes the fish body to the corresponding discharge plate. With the angle scheme between the first discharge plate 15 and the second discharge plate 16 and the conveyor belt 13, smooth flow is achieved, which helps to further reduce the scratching and squeezing damage to the fish scales during the fish sorting and discharge process.

[0023] The conveyor belt 13 has a side baffle 12 on its side, and a slot is opened at the upper end of the side baffle 12. The driven rod 19 can be inserted into the slot. The horizontal height of the driven rod 19 in contact with the limiting connecting plate 34 is higher than the horizontal height of the driven rod 19 in contact with the slot. The slot of the side baffle 12 can first form a lateral limit on the driven rod 19 to prevent it from shifting left or right during transportation and causing the conveyor belt 13 to run off-track. The height difference between the two contact points makes the limiting connecting plate 34 the main support and the slot the auxiliary limit. This can ensure the flexible rotation of the driven rod 19, so that the conveyor belt 13 can always maintain a stable and uniform transportation speed, while eliminating the possibility of the driven rod 19 shifting and rubbing against the structure.

[0024] The output end of the second conveying component 10 has a discharge plate 50, which has an angle with the material conveying end face of the conveyor belt 13. This angle is used to convert the horizontal conveying force of the fish into a smooth inclined guiding force, allowing the graded fish to slide smoothly down the discharge plate 50. Example 2

[0025] See appendix Figure 6 As shown, in this embodiment, a valve body is provided between the pump body 62 and the outlet pipe 63 to control the water output. See attached drawing. Figure 7 As shown, the pump body 62 is connected to the inside of the pool body 61 through a pipe. The pool body 61 is located below the contact point between the water flow from the outlet pipe 63 and the conveyor belt 13, which facilitates the collection and recycling of water falling from the washing conveyor belt 13. Cleaning cotton or nets can be selectively placed in the pool body 61 to collect fish scales, debris, etc. generated during cleaning, which facilitates quick processing. The water in the pool body 61 is replenished quantitatively according to the cleaning situation. If appropriate, disinfectant can be used for replenishment, but attention should be paid to the replenishment ratio.

[0026] The material input end of the conveyor belt 13 has a first conveying component 20 that is inclined. The bottom of the first conveying component 20 is supported by a first bracket 21. The first conveying component 20 has a conveying assembly, and there is a gap between the conveying assembly and the material input end of the conveyor belt 13. The gap is less than 1 cm. The conveying assembly of the first conveying component 20 includes a drive motor, a drive shaft, a conveyor belt of the first conveying component 20, and a driven shaft. The conveying direction of the conveyor belt of the first conveying component 20 is inclined downward, specifically towards the material input end of the conveyor belt 13. The gap between the two helps to drain excess water from the gap during the fall of the large yellow croaker, reducing the visual interference of subsequent water on the detection component 70. If there are any aquatic plants or debris left between the large yellow croakers, it also helps them fall through the gap. Example 3

[0027] See appendix Figure 6 As shown, a cleaning component 41 is provided at the contact point between the water flow from the adjacent water outlet pipe 63 and the conveyor belt 13. (See attached diagram) Figure 8 AppendixFigure 9 As shown, the cleaning component 41 has a cleaning shaft 411 parallel to the driven rod 19. The cleaning component 41 is located below the conveyor belt 13 and is used to scrape and clean the surface of the conveyor belt 13 to remove objects adhering to the surface of the conveyor belt 13. A second drive motor 40 is provided on the second bracket 14 to drive the cleaning shaft 411 to rotate. The cleaning shaft 411 is rotatably connected to the side baffle 12, preferably by bearing connection. The cleaning shaft 411 has two circular plug-in plates 415 coaxially connected to it. The plug-in plates 415 have slots around their edges. The slots on 415 are positioned either correspondingly or offset. Scrapers 414 are inserted around the two plug-in plates 415. The two ends of the scrapers 414 are inserted into the slots on the two plug-in plates 415 respectively, either correspondingly or offset. The upper end of the scraper 414 has a scraper strip 413. There are guide plates 412 arranged opposite to each other between two adjacent scrapers 414. The adjacent ends of the guide plates 412 are connected, and the other end is connected to the plug-in plate 415. The horizontal height of the connection end between the guide plate 412 and the plug-in plate 415 is lower than the horizontal height of the connection end between the two guide plates 412.

[0028] When the cleaning component 41 is in operation, it is powered by the second drive motor 40 on the second bracket 14, which drives the cleaning shaft 411 to rotate around the side baffle 12. The two circular plug plates 415, which are coaxially fixed to the cleaning shaft 411, rotate synchronously with the shaft. The scraper 414, which is inserted into the slot of the plug plate 415, also makes a circular motion. The scraper strip 413 at the upper end of the scraper 414 is in close contact with the lower surface of the conveyor belt 13. With the continuous operation of the conveyor belt 13 and the rinsing of the water pipe 63, the scraper strip 413 scrapes away the scales, impurities, etc. that are still stubbornly attached to the surface of the conveyor belt 13 after rinsing, thus realizing mechanical scraping cleaning. Simultaneously, the guide plate 412 between adjacent scrapers 414 rotates synchronously with the plug-in plate 415. Because the horizontal height of the connection end between the guide plate 412 and the plug-in plate 415 is lower than that of the connection end of the two plates, an inclined flow guiding structure is formed. The impurities scraped off by the scraper 413 will quickly gather and fall into the collection area below under the centrifugal force of rotation and the inclined guiding action of the guide plate 412, avoiding the accumulation of impurities on the cleaning part 41 and their re-adhesion to the surface of the conveyor belt 13. In addition, the plug-in plate 415 and the scraper 414 are plug-in connected, and the installation position of the scraper 414 can be adjusted or directly replaced according to cleaning needs. Example 4

[0029] See appendix Figure 10 As shown, the second transmission assembly 10 has a first drive motor 11 that drives the active rod to rotate, and an electrical control box is provided on the first bracket 21. The electrical control box is used to control the start and stop of electrical equipment on the large yellow croaker scale non-destructive testing and grading machine, such as the first drive motor 11, the second drive motor 40, etc. Example 5

[0030] See appendix Figure 6 - Appendix Figure 7 As shown, a cleaning assembly 60 is provided below the material output end of the conveyor belt 13. The cleaning assembly 60 has a pool 61 located below the material output end of the conveyor belt 13. A pump body 62 is connected to one side of the pool 61 via a pipe. A water outlet pipe 63 is connected to the water outlet end of the pump body 62, and the water outlet direction of the water outlet pipe 63 is oriented towards the conveyor belt 13. By arranging the cleaning assembly 60 below the material output end of the conveyor belt 13, water is stored in the pool 61, pressurized and supplied by the pump body 62, and output as a rinsing water flow to the conveyor belt 13 through the water outlet pipe 63. Automatic cleaning is achieved by utilizing the continuous operation of the conveyor belt 13. Scales, impurities, and water stains adhering to the surface can be quickly washed away without stopping the machine, avoiding unstable conveying caused by dirt accumulation, and preventing impurities from flowing back with the conveyor belt 13 and contaminating subsequent fish bodies, thus preventing interference with the recognition accuracy of the detection assembly 70.

[0031] It should also be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," "linked," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0032] The embodiments and / or implementation methods described above are merely preferred embodiments and / or implementation methods for implementing the technology of the present invention, and are not intended to limit the implementation methods of the technology of the present invention in any way. Any person skilled in the art can make some modifications or alterations to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present invention, but they should still be regarded as the technology or embodiments that are substantially the same as the present invention.

[0033] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of written expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this application, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A non-destructive testing and grading machine for large yellow croaker scales, comprising a second conveying assembly (10), the second conveying assembly (10) comprising a conveyor belt (13), wherein the conveyor belt (13) is provided with at least one active rod, and an array of driven rods (19), characterized in that, A vibration damping component (30) is provided below the material input end of the conveyor belt (13). The vibration damping component (30) includes a horizontally arranged second frame (33). The side of the second frame (33) has a limiting connecting plate (34) that is rotatably connected to the driven rod (19). The edge of the second frame (33) has an extension connecting plate (35). The bottom of the extension connecting plate (35) is provided with a vertical rod that is vertically connected to it. The bottom of the second frame (33) has a third frame (37) that is parallel to it. The third frame (37) has an elastic element (36) that is connected to the vertical rod. The bottom of the third frame (37) has a first frame (32). The bottom of the first frame (32) has a third support (31).

2. The non-destructive testing and grading machine for large yellow croaker scales according to claim 1, characterized in that, The bottom of the third frame (37) is connected to the first frame (32) by an elastic column.

3. The non-destructive testing and grading machine for large yellow croaker scales according to claim 1, characterized in that, A detection component (70) is provided above the material input end of the conveyor belt (13).

4. The non-destructive testing and grading machine for large yellow croaker scales according to claim 1, characterized in that, The output end of the second conveying component (10) is provided with a first discharge plate (15) and a second discharge plate (16) arranged in an alternating manner. The first discharge plate (15) and the second discharge plate (16) have an angle with the material conveying end face of the conveyor belt (13).

5. The non-destructive testing and grading machine for large yellow croaker scales according to claim 4, characterized in that, The conveyor belt (13) has a side baffle (12) on its side, and the side baffle (12) has a hydraulic push rod (17) corresponding to the position of the first discharge plate (15) and the second discharge plate (16). The output end of the hydraulic push rod (17) has a push plate (18).

6. The non-destructive testing and grading machine for large yellow croaker scales according to claim 1, characterized in that, The conveyor belt (13) has a side baffle (12) on its side. The upper end of the side baffle (12) has a slot. The driven rod (19) can be put into the slot. The horizontal height of the driven rod (19) in contact with the limiting connecting plate (34) is higher than the horizontal height of the driven rod (19) in contact with the slot.

7. The non-destructive testing and grading machine for large yellow croaker scales according to claim 1, characterized in that, The conveyor belt (13) has a first conveying component (20) that is inclined in the direction of the material input end. The bottom of the first conveying component (20) is supported by a first bracket (21). The first conveying component (20) has a conveying component. The conveying component and the material input end of the conveyor belt (13) are spaced apart.

8. The non-destructive testing and grading machine for large yellow croaker scales according to claim 1, characterized in that, A cleaning assembly (60) is provided below the material output end of the conveyor belt (13).

9. The non-destructive testing and grading machine for large yellow croaker scales according to claim 8, characterized in that, The cleaning assembly (60) has a pool (61) located below the material output end of the conveyor belt (13). A pump (62) is connected to one side of the pool (61) via a pipe. A water outlet pipe (63) is connected to the water outlet end of the pump (62). The water outlet direction of the water outlet pipe (63) is set towards the conveyor belt (13).

10. The non-destructive testing and grading machine for large yellow croaker scales according to claim 1, characterized in that, The output end of the second conveying component (10) has a discharge plate (50), which has an angle with the material conveying end face of the conveyor belt (13).

Images