Hyperspectral detection beef classification and grading production line

Abstract

The utility model discloses a kind of high spectral detection beef classification grading production lines, it is related to beef classification grading technical field, to solve the technical problem that flat plate type push plate pushes and is prone to beef deviation, damage, including detection device rack, the detection device rack top is provided with detection device conveyor belt, the detection device conveyor belt top is provided with meat separating mechanism, the meat separating mechanism bottom is provided with puncture mechanism.The utility model is enclosed trapezoidal groove structure by middle section meat plate and two sides meat separating plate, when beef enters the groove, trapezoidal structure can form effective limit to beef, avoid middle section meat plate push when beef deviation, simultaneously with the arc plate and puncture block combination structure of puncture mechanism, the adaptability of beef shape is stronger, whether regular block beef or slightly irregular natural cutting beef, can be pushed steadily through arc buffer and inclined puncture, solve the technical problem that flat plate type push plate pushes and is prone to beef deviation, damage.

Description

Technical Field

[0001] This utility model relates to the field of beef classification and grading technology, and more specifically, to a hyperspectral detection production line for beef classification and grading. Background Technology

[0002] In the meat processing industry, beef, as a high-value-added meat product, requires quality grading and cut classification as key steps to ensure efficient product distribution and meet diverse consumer demands. Traditional beef grading processes rely heavily on manual labor. Workers visually inspect the color and marbling of the beef, combining this with experience to determine the cut (such as chuck, sirloin, ribeye, etc.) and grade (such as A1-A5), before manually sorting the beef to the corresponding conveyor.

[0003] With the development of automation technology in meat processing, some production lines have begun to introduce mechanical conveying and preliminary sorting devices. Traditional meat sorting devices often use flat pushers to directly push beef. During the pushing process, the beef is prone to displacement due to surface grease or irregular shape, leading to sorting into the wrong channel. Furthermore, the hard contact between the pusher and the beef can easily cause edge compression deformation and meat quality damage. In view of this, we propose a hyperspectral detection-based beef classification and grading production line. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide a hyperspectral detection beef classification and grading production line to solve the technical problem that the current flat plate pusher pusher is prone to beef displacement and damage.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hyperspectral detection beef classification and grading production line, including a detection device frame, a detection device conveyor belt at the top of the detection device frame, a meat separating mechanism at the top of the detection device conveyor belt, and a piercing mechanism at the bottom of the meat separating mechanism. The meat separating mechanism includes a middle meat separating plate and two side meat separating plates, which form a trapezoidal groove structure. The middle position of the middle meat separating plate and the two side meat separating plates is a recessed part, and the bottom protruding part is a raised part. The piercing mechanism includes an arc-shaped plate and a piercing block. The arc-shaped plate is located at the recessed part, and the piercing block is fixedly installed on the outer arc surface of the arc-shaped plate, and the inclination direction of the piercing block is consistent with the pushing direction of the middle meat separating plate.

[0006] Preferably, the meat-splitting mechanism further includes a fixed frame, which is fixedly installed on the top of the detection device frame. A meat-splitting device guide rail is fixedly installed at the bottom of the fixed frame. A meat-splitting device slider is slidably installed on the inner side of the meat-splitting device guide rail. A first hydraulic device is fixedly installed at the bottom of the meat-splitting device slider. An mounting plate is fixedly installed on the top of the middle meat-splitting plate. The mounting plate is fixedly installed at the output end of the first hydraulic device.

[0007] Preferably, the puncture mechanism further includes a central fixing plate, with side fixing plates fixedly installed on both sides of the central fixing plate. The central fixing plate and the side fixing plates are fixedly installed in the recess of the central meat-dividing plate, and the arc-shaped plate is fixedly installed on the inner side of the side fixing plate.

[0008] Preferably, the meat-separating mechanism further includes a first sensor for detecting the position of the beef, the first sensor being disposed on both sides of the middle meat-separating plate.

[0009] Preferably, an arc-shaped plate is provided on the inner wall of the two meat-separating plates, and the outer arc surface of the arc-shaped plate faces the central axis of the beef limiting opening.

[0010] Preferably, it also includes a hyperspectral detection mounting bracket, a second hydraulic device is fixedly installed at the bottom of the hyperspectral detection mounting bracket, a hyperspectral detection housing is fixedly installed at the output end of the second hydraulic device, fans are provided on both sides of the hyperspectral detection housing, an exhaust hood is provided on the outside of the hyperspectral detection housing, and a second sensor is provided below the exhaust hood.

[0011] Preferably, halogen lamps are installed on both sides inside the hyperspectral detection chamber, and a hyperspectral camera for collecting spectral information of beef is installed in the middle.

[0012] Preferably, both the hyperspectral detection mounting bracket and the fixing bracket are located on top of the conveyor belt of the detection device, and the fixing bracket is located at the exit position of the hyperspectral detection mounting bracket.

[0013] Preferably, the detection device conveyor belt is provided with intermediate conveyor belts on both sides, the tail ends of the intermediate conveyor belts are all conveyor belts, and the tail ends of the conveyor belts are provided with end conveyor belts.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a trapezoidal trough structure formed by a central meat-dividing plate and two side meat-dividing plates. When beef enters the trough, the trapezoidal structure can effectively limit the beef and prevent it from shifting when pushed by the central meat-dividing plate. At the same time, the combination structure with the arc-shaped plate and piercing block of the piercing mechanism makes it more adaptable to the shape of the beef. Whether it is regular block beef or slightly irregular naturally cut beef, it can be stably pushed through arc-shaped buffer and inclined piercing, solving the problem of beef shifting and damage caused by flat plate pushers.

[0015] 2. This utility model also uses the outer arc surface of the arc plate to first contact the beef, and the arc structure to achieve buffering and reduce the impact of hard contact on the beef. Then, the piercing block pierces into the surface fascia of the beef, and the piercing block is inclined in the same direction as the pushing direction of the middle meat-separating plate. This not only ensures the stability of the force during pushing, but also allows the meat-separating plate to separate smoothly from the beef after pushing, avoiding pulling the surface of the meat and effectively reducing the beef damage rate. It is especially suitable for the sorting needs of high-grade tender beef. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model; Figure 2 This is a schematic diagram of the external structure of the meat-separating mechanism of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the meat-separating mechanism of this utility model; Figure 4 This is a schematic diagram of the middle meat plate and its related structures of this utility model; Figure 5 This is a schematic diagram of the middle section of the meat plate structure of this utility model; Figure 6 This is a schematic diagram of the puncture mechanism of this utility model; Figure 7 This utility model Figure 6 Enlarged schematic diagram of the structure at point A in the middle; Figure 8 This is a schematic diagram of the appearance structure of the hyperspectral detection mounting bracket of this utility model; Figure 9 This is a schematic diagram of the bottom structure of the hyperspectral detection mounting bracket of this utility model.

[0017] The following are the labeling instructions in the diagram: 1. Detection device frame; 11. Detection device conveyor belt; 2. Computer; 3. Conveying device conveyor belt; 4. End conveying device conveyor belt; 5. Intermediate conveying device conveyor belt; 6. Meat separating mechanism; 61. Fixing frame; 62. Meat separating device guide rail; 63. Meat separating device slider; 64. First hydraulic device; 65. Middle meat separating plate; 66. Side meat separating plates; 661. Mounting plate; 662. Recessed part; 663. Protruding part; 67. First sensor; 7. Puncture mechanism; 71. Middle fixing plate; 711. Side fixing plate; 72. Arc plate; 73. Puncture block; 8. Hyperspectral detection mounting frame; 81. Second hydraulic device; 82. Hyperspectral detection housing; 83. Exhaust hood; 84. Fan; 85. Second sensor; 86. Halogen lamp; 87. Hyperspectral camera. Detailed Implementation

[0018] Example: Figures 1 to 9 As shown, this utility model relates to a hyperspectral detection production line for beef classification and grading, including a detection device frame 1, a detection device conveyor belt 11 at the top of the frame 1, a meat separating mechanism 6 at the top of the conveyor belt 11, and a piercing mechanism 7 at the bottom of the meat separating mechanism 6. The meat separating mechanism 6 includes a central meat separating plate 65 and two side meat separating plates 66, which form a trapezoidal groove structure. The middle position of the central meat separating plate 65 and the two side meat separating plates 66 is a recessed portion 662, and the bottom protruding position is a protruding portion 663. The piercing mechanism 7 includes an arc-shaped plate 72 and a piercing block 73. The arc-shaped plate 72 is located at the recessed portion 662, and the arc-shaped plate 72 is provided on the inner sidewall of the two side meat separating plates 66. The outer arc surface of the arc plate 72 faces the central axis of the beef limiting opening. The piercing block 73 is fixedly installed on the outer arc surface of the arc plate 72, and the tilting direction of the piercing block 73 is consistent with the pushing direction of the middle meat dividing plate 65. This utility model forms a trapezoidal groove structure by the middle meat dividing plate 65 and the two side meat dividing plates 66. When the beef enters the groove, the trapezoidal structure can effectively limit the beef and prevent the beef from deviating when the middle meat dividing plate 65 pushes it. At the same time, the combination structure of the arc plate 72 and the piercing block 73 of the piercing mechanism 7 has a stronger adaptability to the shape of the beef. Whether it is regular block beef or slightly irregular naturally cut beef, it can be stably pushed through arc buffer and tilting piercing, solving the problem of beef deviation and damage caused by flat plate pushing.

[0019] Furthermore, the meat-splitting mechanism 6 also includes a fixed frame 61, which is fixedly installed on the top of the detection device frame 1. A meat-splitting device guide rail 62 is fixedly installed at the bottom of the fixed frame 61. A meat-splitting device slider 63 is slidably installed on the inner side of the meat-splitting device guide rail 62. A first hydraulic device 64 is fixedly installed at the bottom of the meat-splitting device slider 63. An mounting plate 661 is fixedly installed on the top of the middle meat-splitting plate 65. The mounting plate 661 is fixedly installed at the output end of the first hydraulic device 64. The meat-splitting mechanism 6 also includes a first sensor 67 for detecting the position of the beef. The first sensor 67 is set on both sides of the middle meat-splitting plate 65. The meat-splitting device slider 63 can slide laterally along the meat-splitting device guide rail 62 to realize the lateral position adjustment of the middle meat-splitting plate 65. The beef can be pushed to the appropriate position according to the calculation results of the computer 2.

[0020] Furthermore, the piercing mechanism 7 also includes a central fixing plate 71, with side fixing plates 711 fixedly installed on both sides of the central fixing plate 71. The central fixing plate 71 and the side fixing plates 711 are fixedly installed in the recess 662 of the central meat-separating plate 65. The arc-shaped plate 72 is fixedly installed on the inner side of the side fixing plate 711. The outer arc surface of the arc-shaped plate 72 first contacts the beef, and the arc structure is used to achieve buffering, reducing the impact of hard contact on the beef. Then, the piercing block 73 pierces into the surface fascia of the beef. The piercing block 73 is inclined in the same direction as the pushing direction of the central meat-separating plate 65, which not only ensures the stability of the force during pushing, but also allows the meat-separating plate to separate smoothly from the beef after pushing, avoiding pulling the surface of the meat and effectively reducing the beef damage rate. It is especially suitable for the sorting needs of high-grade tender beef.

[0021] Furthermore, it also includes a hyperspectral detection mounting bracket 8, with a second hydraulic device 81 fixedly mounted at the bottom of the bracket 8. A hyperspectral detection housing 82 is fixedly mounted at the output end of the second hydraulic device 81. An exhaust hood 83 is provided on the outside of the hyperspectral detection housing 82, and fans 84 are provided on both sides of the housing. A second sensor 85 is located below the exhaust hood 83. Halogen lamps 86 are provided on both sides inside the housing 82, and a hyperspectral camera 87 for collecting spectral information of beef is located in the middle. The hyperspectral detection is achieved through the hyperspectral detection mounting bracket 8 and the second hydraulic device 81. In conjunction with the hyperspectral detection chamber 82, when the second sensor 85 triggers the detection signal, the second hydraulic device 81 can drive the hyperspectral detection chamber 82 to move downward, forming a sealed light-proof cavity with the detection device conveyor belt 11, effectively isolating external ambient light interference; at the same time, the halogen lamp 86 inside the hyperspectral detection chamber 82 provides stable illumination, and the hyperspectral camera 87 accurately collects the spatial and spectral information of the beef, providing a reliable data foundation for the transfer learning algorithm model of the computer 2, ensuring the accuracy of beef part and grade judgment from the source of detection, and avoiding grading errors caused by detection data deviation.

[0022] It should be noted that the transfer learning algorithm model built into Computer 2 is a convolutional neural network model. Before implementation, this model was pre-trained and fine-tuned using a large amount of hyperspectral image data of beef samples with known cuts and grades.

[0023] The model's operation and control logic includes the following steps: Data reception and preprocessing: After receiving the raw spectral data from the hyperspectral camera 87, the computer 2 first performs preprocessing, including dark current correction, spectral reflectance calculation, and image ROI region of interest cropping, in order to eliminate environmental noise and focus on the effective area of ​​the beef.

[0024] Feature extraction and classification: The preprocessed data is input into the transfer learning model. The model extracts deep spectral features of the beef samples, such as the characteristic absorption peaks of fat, protein, and moisture, as well as spatial texture features, such as the distribution pattern of marbling. It then combines these features to output the predicted cut of beef, such as sirloin or ribeye, and the grade, such as A1-A5.

[0025] Command Mapping and Output: Computer 2 has a pre-stored sorting strategy mapping table, which defines the target position of the meat sorting mechanism 6 corresponding to different prediction results. For example, if the predicted sirloin-A3 beef is moved to the leftmost workstation via the middle section meat plate 65, computer 2 queries the mapping table based on the prediction result and generates the corresponding control command.

[0026] Sorting execution: Control commands are sent to the controller of the first hydraulic device 64 via PLC or industrial bus, controlling the extension stroke of the first hydraulic device 64 and the lateral movement distance of the meat separating device slider 63, thereby driving the middle meat plate 65 to accurately push the beef onto the target conveyor belt 3, completing automated sorting.

[0027] Furthermore, both the hyperspectral detection mounting bracket 8 and the fixing bracket 61 are set on the top of the detection device conveyor belt 11. The fixing bracket 61 is set at the exit position of the hyperspectral detection mounting bracket 8. The detection device conveyor belt 11 is provided with intermediate conveyor belts 5 on both sides. The tail end of the intermediate conveyor belts 5 is a conveyor belt 3. The tail end of the conveyor belt 3 is provided with an end conveyor belt 4.

[0028] Working Principle: This embodiment provides a hyperspectral detection beef classification and grading production line. In use, the beef to be classified is laid flat on top of the conveyor belt 11 of the detection device. During the conveyor belt 11's transport of the beef, when it passes the hyperspectral detection mounting frame 8, and the front end of the beef moves to the lower outer side of the hyperspectral detection chamber 82, it triggers the second sensor 85 below the external exhaust hood 83 of the hyperspectral detection chamber 82. The second sensor 85 sends a start detection signal to the computer 2. After receiving the signal, the computer 2 uses a second hydraulic device 81 to extend and retract, causing the hyperspectral detection chamber 82 to move downwards until the hyperspectral detection chamber... The bottom of the hyperspectral detection chamber 82 forms a relatively sealed light-proof cavity with the surface of the conveyor belt 11 of the detection device to avoid interference from ambient light on the spectral data. After the hyperspectral detection chamber 82 falls into place, the halogen lamps 86 on the left and right sides inside the hyperspectral detection chamber 82 are lit synchronously to provide stable and uniform illumination for the beef and ensure the consistency of spectral acquisition. The hyperspectral camera 87 in the middle of the hyperspectral detection chamber 82 is activated to scan the entire piece of beef and simultaneously acquire the spatial image information and continuous spectral information of the beef, such as the spectral characteristics corresponding to the marbling and moisture content. The computer 2 processes the hyperspectral raw data through the built-in transfer learning algorithm model.

[0029] The beef that has completed the inspection continues to move backward along the conveyor belt 11 of the inspection device. When it reaches the bottom of the meat sorting mechanism 6, the first sensor 67 is used to inspect the beef. At this time, the classification and grading results generated by the computer 2 are converted into action control signals for the meat sorting mechanism 6.

[0030] Adjust the middle meat-dividing plate 65 to a lateral position that matches the direction of beef pushing, and activate the first hydraulic device 64. The first hydraulic device 64 pushes the mounting plate 661 down, which in turn pushes the middle meat-dividing plate 65 down. At this time, the middle meat-dividing plate 65 pushes the beef, and the beef enters the trapezoidal groove formed by the two side meat-dividing plates 66 and the middle meat-dividing plate 65 to prevent the beef from deviating. When the arc plate 72 comes into contact with the beef, the outer arc surface of the arc plate 72 first contacts the beef to buffer it, and then the piercing block 73 on the outer arc surface pierces into the beef and pushes the beef away.

[0031] The tilting direction of all piercing blocks 73 is consistent with the pushing direction of the middle meat plate 65. When the middle meat plate 65 begins to move laterally, the tilted back of the piercing block 73 becomes the main force-bearing surface, gradually piercing the surface fascia of the beef at an angle, rather than impacting vertically. After pushing is completed, the middle meat plate 65 can easily and smoothly separate from the beef without pulling the surface of the meat, achieving a clean and neat reset, and preparing for the next sorting cycle.

[0032] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A hyperspectral detection production line for beef classification and grading, comprising a detection device frame (1), characterized in that, The top of the detection device frame (1) is provided with a detection device conveyor belt (11), the top of the detection device conveyor belt (11) is provided with a meat-separating mechanism (6), and the bottom of the meat-separating mechanism (6) is provided with a piercing mechanism (7). The meat separating mechanism (6) includes a middle meat separating plate (65) and two side meat separating plates (66). The middle meat separating plate (65) and the two side meat separating plates (66) form a trapezoidal groove structure. The middle position of the middle meat separating plate (65) and the two side meat separating plates (66) is a recessed part (662), and the bottom protruding part is a protruding part (663). The piercing mechanism (7) includes an arc plate (72) and a piercing block (73). The arc plate (72) is located at the recess (662). The piercing block (73) is fixedly installed on the outer arc surface of the arc plate (72). The inclination direction of the piercing block (73) is consistent with the pushing direction of the middle meat plate (65).

2. The hyperspectral detection and grading production line for beef according to claim 1, characterized in that, The meat-splitting mechanism (6) also includes a fixed frame (61), which is fixedly installed on the top of the detection device frame (1). A meat-splitting device guide rail (62) is fixedly installed at the bottom of the fixed frame (61). A meat-splitting device slider (63) is slidably installed on the inner side of the meat-splitting device guide rail (62). A first hydraulic device (64) is fixedly installed at the bottom of the meat-splitting device slider (63). An installation plate (661) is fixedly installed on the top of the middle meat plate (65), and the installation plate (661) is fixedly installed on the output end of the first hydraulic device (64).

3. The hyperspectral detection and grading production line for beef according to claim 2, characterized in that, The puncture mechanism (7) further includes a central fixing plate (71), on both sides of which side fixing plates (711) are fixedly installed. The central fixing plate (71) and the side fixing plates (711) are fixedly installed in the recess (662) of the central meat cutting plate (65), and the arc plate (72) is fixedly installed on the inner side of the side fixing plate (711).

4. The hyperspectral detection and grading production line for beef according to claim 2, characterized in that, The meat-separating mechanism (6) further includes a first sensor (67) for detecting the position of the beef, the first sensor (67) being disposed on both sides of the middle meat-separating plate (65).

5. The hyperspectral detection and grading production line for beef according to claim 1, characterized in that, An arc-shaped plate (72) is provided on the inner side wall of the two meat-separating plates (66), and the outer arc surface of the arc plate (72) faces the central axis of the beef limiting port.

6. The hyperspectral detection and grading production line for beef according to claim 1, characterized in that, It also includes a hyperspectral detection mounting bracket (8), on the bottom of which a second hydraulic device (81) is fixedly installed. A hyperspectral detection housing (82) is fixedly installed at the output end of the second hydraulic device (81). An exhaust hood (83) is provided outside the hyperspectral detection housing (82). Fans (84) are provided on both sides of the hyperspectral detection housing (82). A second sensor (85) is provided below the exhaust hood (83).

7. The hyperspectral detection and grading production line for beef according to claim 6, characterized in that, The hyperspectral detection chamber (82) has halogen lamps (86) on both sides inside and a hyperspectral camera (87) in the middle for collecting spectral information of beef.

8. A hyperspectral detection and beef classification and grading production line according to claim 6, characterized in that, The hyperspectral detection mounting bracket (8) and the fixing bracket (61) are both located on the top of the conveyor belt (11) of the detection device, and the fixing bracket (61) is located at the exit position of the hyperspectral detection mounting bracket (8).

9. A hyperspectral detection and grading production line for beef according to claim 1, characterized in that, The detection device conveyor belt (11) is provided with intermediate conveyor belts (5) on both sides, and the tail end of the intermediate conveyor belts (5) is a conveyor belt (3), and the tail end of the conveyor belts (3) is provided with an end conveyor belt (4).

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