Accurate positioning type eel slicing machine and positioning method thereof

Abstract

This invention discloses a precision-positioning eel slicing machine and its positioning method, including a support component, a cutting component, a camera, a drive component, and an eel propulsion component. The pre-treated eel is placed on the drive belt. The camera is activated and lubricated with water to ensure the cutting blade slices the eel cleanly on the elastic surface, avoiding breakage or residue caused by uneven force in traditional cutting. A drive motor, through a drive wheel, transmission belt, and driven wheel, drives a rotating rod to raise and lower the base plate, thereby adjusting the height of the cutting component for precise cutting. Simultaneously, multiple cameras monitor the eel's position in real time, transmitting high-quality images to an external computer for visual processing. Real-time calculations identify the head and tail proportions and calculate three-dimensional parameters, providing data support for subsequent positioning. This design not only improves cutting accuracy but also reduces manual intervention, significantly increasing production efficiency.

Description

Technical Field

[0001] This invention relates to a precision positioning eel slicing machine and its positioning method. Background Technology

[0002] Eel is a high-value aquatic product, prized for its tender flesh and rich nutritional value, and widely used in the catering and food processing industries. During processing, eel needs to be sliced ​​into uniform pieces for subsequent cooking or further processing. This step requires high precision and efficiency, and traditional manual operations are insufficient for large-scale production; therefore, automated equipment has become an inevitable trend in the industry.

[0003] Current technology requires opening the abdomen of eels of different sizes before cutting them. However, the current cutting position adjustment mainly relies on manual or mechanical tracks, which leads to uneven cutting force, easily causing eel breakage or cutting residue, thus affecting the quality of the finished product. In addition, eels have a lot of mucus on their body surface, making them slippery during operation, and their bones are small and complexly distributed, further increasing the difficulty of cutting. Therefore, this paper proposes a precise positioning eel slicing machine and its positioning method to solve the above-mentioned problems. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides the following technical solution: a precision positioning eel slicing machine, characterized in that: it includes a support frame, a support component is slidably connected to the top of the support frame, a support platform is installed on the support frame, the top of the support platform is slidably connected to the adjacent support component, a drive component is fixed on the support platform, an eel propulsion component is installed on the top of the support frame, two cutting components for cutting eels are installed on the support component, a cleaning component is fixedly connected to the top of the support frame, and a control component is provided on the cleaning component; The support frame is also equipped with multiple cameras for observing the position of the eel cutting knife, and the bottom of the support frame is also fixed with an A drive motor for driving the drive assembly.

[0005] As a preferred embodiment of the present invention, the support assembly includes two base plates, each of which is equipped with a side support frame. Each of the four side support frames is slidably connected to a support slider, and each of the four side support frames is slidably connected to a support frame via the support slider. The bottom of one base plate is slidably connected to a support platform, and a hydraulic push rod is installed on the top of the base plate. The top of the other base plate is equipped with a stop plate, and the base plate output rod is connected to the stop plate.

[0006] As a preferred embodiment of the present invention, the cutting assembly includes a cutting blade and a support plate. The two sides of the support plate are fixed to the adjacent side supports. The support plate is threaded with two first positioning screws, both of which penetrate the support plate and are threadedly connected to the cutting blade. An extension plate is installed on the top of the support plate, and a second positioning screw is threadedly connected to the extension plate. The bottom end of the second positioning screw penetrates the extension plate and abuts against the top of the cutting blade.

[0007] As a preferred embodiment of the present invention, the drive assembly includes a drive wheel and a driven wheel. The drive wheel is connected to the output shaft of drive motor A via a coupling. A transmission belt is provided between the driven wheel and the drive wheel. The drive wheel and the driven wheel are driven by the transmission belt. A second rotating rod is installed on the driven wheel. The second rotating rod passes through and extends out of the support platform.

[0008] As a preferred embodiment of the present invention, a linkage slider is provided at the end of the second rotating rod away from the first rotating rod. The linkage slider is slidably connected to the second rotating rod. A second linkage rod is rotatably connected to the side of the linkage slider away from the second rotating rod. The other end of the second linkage rod is connected to the eel propulsion assembly. The drive assembly also includes a first rotating rod. The first rotating rod is connected to the side of the driven wheel away from the linkage slider. A first linkage rod is hinged to the end of the first rotating rod away from the driven wheel. The first linkage rod is hinged to the bottom of the adjacent base plate.

[0009] As a preferred embodiment of the present invention, the eel propulsion assembly includes a support wheel and a drive belt. The support wheel and the drive wheel are rotatably connected to the support frame, and the support wheel is driven by the drive belt.

[0010] As a preferred embodiment of the present invention, the eel propulsion assembly further includes an outer ring and a drive wheel. An inner ring is installed at one end of the drive wheel. The outer ring and the inner ring are rotatably connected. The contact parts of the outer ring and the inner ring are provided with mutually meshing ratchet wheels. A third linkage rod is installed on the outer ring, and the third linkage rod is hinged to the second linkage rod.

[0011] As a preferred embodiment of the present invention, the cleaning assembly includes a gantry frame, which is fixedly connected to the top of a support frame. A lifting groove is provided on the surface of the gantry frame, and a cleaning brush is slidably connected in the lifting groove. Two extension blocks are fixedly connected to the side end of the gantry frame, and mounting plates are fixedly connected to the surfaces of the two extension blocks. Multiple nozzles are fixedly connected to the surface of the mounting plates, and a water inlet pipe is fixedly connected to the surface of the mounting plates.

[0012] As a preferred embodiment of the present invention, the control component includes a U-shaped block, which is fixedly connected to the upper end of the gantry frame. A first transmission gear and a second transmission gear are rotatably connected to the upper end of the U-shaped block, and the first transmission gear and the second transmission gear mesh with each other. A lead screw is internally threaded onto the first transmission gear and passes through the U-shaped block. The lead screw is fixedly connected to a cleaning brush. A B drive motor is fixedly connected to the side end of the U-shaped block, and the output end of the B drive motor is fixedly connected to the lead screw.

[0013] A positioning method for a precision positioning eel slicing machine, the specific steps of which are as follows: S1. First, place the eel on the drive belt, start the B drive motor, and bring the brush at the bottom of the cleaning brush into contact with the surface of the eel. Then, inject cleaning fluid into the mounting plate through an external water pump and spray the cleaning fluid onto the surface of the eel through the nozzle. By moving the eel with the drive belt, the slime on the surface of the eel can be washed away.

[0014] S2. After the eel is pre-treated, it is placed on the drive belt, the camera and A drive motor are started, and water is poured on the surface of the drive belt to increase the lubrication effect. S2a. After adjusting the cutting blade to the appropriate height and cutting force, the slightly elastic surface of the drive belt ensures that the eel can be cut in one stroke. After the S3 and A drive motors start, they will drive the first linkage rod through the rotation of the first rotating rod. That is, the base plate can be raised or lowered by the rotation of the first rotating rod. The two base plates are supported by the side support frame, the support slider, and the support frame, which will drive the cutting component to rise and fall to cut the eel. S4. While the eel is being cut, multiple cameras will monitor it at all times. After the eel enters the camera's field of view, the camera will obtain a high-quality image and then transmit the image to an external computer. The computer will perform real-time calculations after visual processing to calculate the minimum bounding rectangle of the seafood and obtain three-dimensional parameters. This will enable the seafood to be identified and the proportions of the head and tail will be determined. Then, the hydraulic push rod can be activated to adjust the distance between the two cutting components. S4a. While the driven wheel rotates, it also drives the eel propulsion assembly to rotate via the second rotating rod, the linkage slider, and the second linkage rod. Inside the eel propulsion assembly, the drive wheel, the third linkage rod, and the drive belt form a main body connected to the support frame. One side of the drive wheel is connected to the outer ring via an inner ring. The meshing teeth in the inner and outer rings allow the drive wheel to rotate via the inner ring when the outer ring rotates clockwise. When the outer ring rotates counterclockwise, the inner ring does not rotate with the outer ring, thus creating an intermittent propulsion effect that drives the drive belt and the eel. This ensures that each push will allow an eel to enter the cutting area. The cutting and propulsion operations can be achieved by an A drive motor. With the help of a camera to observe the adjustment of the linkage support assembly and the cutting of the cutting assembly, a production line operation can be achieved.

[0015] Compared with the prior art, the beneficial effects that this invention can achieve are: 1. In this invention, the pre-treated eel is placed on a drive belt. The camera is activated and lubricated with water to ensure that the cutting blade cuts the eel in one stroke on the elastic surface, avoiding breakage or residue caused by uneven force in traditional cutting. The A drive motor drives the rotating rod to lift and lower the base plate through the transmission of the drive wheel, transmission belt and driven wheel, thereby adjusting the height of the cutting component to achieve precise cutting. At the same time, multiple cameras monitor the position of the eel in real time and transmit high-quality images to an external computer for visual processing. Through real-time calculation, the proportion of the eel's head and tail is identified and three-dimensional parameters are calculated to provide data support for subsequent positioning. This design not only improves cutting accuracy but also reduces manual intervention and significantly improves production efficiency.

[0016] 2. This invention, through the ingenious design of the linkage slider and linkage rod, achieves synchronous operation of cutting and propulsion, forming a highly efficient assembly line operation. When the driven wheel rotates, it drives the second rotating rod and the linkage slider to drive the eel propulsion assembly. The meshing structure between the drive wheel and the inner and outer rings ensures intermittent propulsion by the drive belt, allowing only one eel to enter the cutting area with each push, avoiding accumulation or omission. The hydraulic push rod adjusts the spacing of the cutting components according to the proportion of the eel's head and tail calculated by the computer, ensuring precise cutting position. The entire system requires only one A drive motor to complete cutting and propulsion. Combined with real-time monitoring of the linkage support and cutting components by a camera, it achieves automated and precise assembly line operation. This design not only simplifies the equipment structure and reduces energy consumption but also significantly improves production efficiency and product quality, providing reliable technical support for the seafood processing industry.

[0017] 3. In this invention, the pre-treated eel is placed on a drive belt. Driven by motor A, the drive wheel, transmission belt, and driven wheel work together to adjust the height of the rotating rod relative to the base plate. This design precisely controls the height of the dividing piece, ensuring the cutting blade makes a clean cut on the elastic surface, avoiding breakage or residue problems caused by uneven force in traditional cutting methods.

[0018] 4. In this invention, multiple eel processing cameras monitor the eel's position in real time, transmitting high-quality images to an external computer for visual processing. A deep learning algorithm (YOLOv8 model) is used to identify the head and tail ratios in real time, and infrared sensors detect changes in surface temperature and humidity to dynamically adjust the cutting starting point. The system establishes an eel body shape database (body length / body height ratio 15.5~18.6 times), and automatically matches the optimal cutting path based on real-time measurement data (laser ranging accuracy ±0.1mm), avoiding sensitive areas such as fins and lateral lines, ensuring a cutting accuracy error ≤0.5mm.

[0019] 5. The cutting blade is made of titanium alloy and has a finely polished, sharp, thin edge. The curvature of the blade conforms to the natural curve of the eel's spine. When cutting from behind the eel's head, it can smoothly and gently advance along the spine like a silk thread. The thin blade design minimizes pressure on the fish meat. When separating close to the bone, especially in the complex structure where the spine and ribs intersect, the titanium alloy blade ensures both sharpness and stability when encountering bone resistance, preventing it from shifting due to uneven force.

[0020] 6. In this invention, the eel can be moved by the drive belt 66. During the movement, the cleaning component can spray cleaning liquid onto the surface of the eel. The relative movement between the eel and the cleaning brush 86 can wash away the mucus on the surface of the eel, thereby preventing the mucus from affecting subsequent processing. Attached Figure Description

[0021] Figure 1 This is a first-view structural diagram of the entire invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective; Figure 3 This is a three-dimensional structural diagram of the support component in this invention; Figure 4 This is a three-dimensional structural diagram of the cutting component in this invention; Figure 5 This is a three-dimensional structural diagram showing the connection between the drive component and the eel propulsion component in this invention; Figure 6 This is a schematic cross-sectional view of the outer ring in this invention; Figure 7 For the present invention Figure 1 Enlarged view of point A in the middle; Figure 8 This is a three-dimensional structural diagram of the cleaning component and control component of the present invention; Figure 9 This is a partial exploded perspective view of the cleaning component and control component of the present invention.

[0022] The components include: 1. Support frame; 11. Support platform; 2. Support assembly; 21. Side support frame; 22. Base plate; 23. Support slider; 24. Hydraulic push rod; 25. Support plate; 3. Cutting assembly; 31. Cutting blade; 32. Support plate; 33. Extension plate; 34. First positioning screw; 35. Second positioning screw; 4. Camera; 5. Drive assembly; 51. Drive wheel; 52. Transmission belt; 53. Driven wheel; 54. First rotating rod; 55. First linkage rod; 56. Second rotating rod; 57. 58. Linkage slider; 6. Second linkage rod; 7. Eel propulsion assembly; 81. Outer ring; 62. Drive wheel; 63. Third linkage rod; 64. Inner ring; 65. Support wheel; 66. Drive belt; 7. A drive motor; 8. Cleaning assembly; 81. Gantry frame; 82. Extension block; 83. Mounting plate; 84. Water inlet pipe; 85. Nozzle; 86. Cleaning brush; 9. Control assembly; 91. B drive motor; 92. U-shaped block; 93. Lead screw; 94. First transmission gear; 95. Second transmission gear. Detailed Implementation

[0023] To make the technical means, creative features, and achieved objectives and effects of this invention easier to understand, the invention is further described below with reference to specific embodiments. However, the following embodiments are merely preferred embodiments of this invention and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described herein without creative effort are all within the protection scope of this invention. Unless otherwise specified, the experimental methods in the following embodiments are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0024] Example: like Figure 1 - Figure 9 As shown, this embodiment proposes a precision positioning eel slicing machine, characterized in that: it includes a support frame 1, a support component 2 is slidably connected to the top of the support frame 1, a support platform 11 is installed on the support frame 1, the top of the support platform 11 is slidably connected to the adjacent support component 2, a drive component 5 is fixed on the support platform 11, an eel propulsion component 6 is installed on the top of the support frame 1, two cutting components 3 for cutting eels are installed on the support component 2, a cleaning component 8 is fixedly connected to the top of the support frame 1, and a control component 9 is provided on the cleaning component 8; The support frame 1 is also equipped with multiple cameras 4 for observing the position of the eel cutting knife, and the bottom of the support frame 1 is also fixed with an A drive motor 7 for driving the drive assembly 5.

[0025] The support assembly 2 includes two base plates 22, each of which is equipped with a side support frame 21. Each of the four side support frames 21 is slidably connected to a support slider 23. Each of the four side support frames 21 is slidably connected to the support frame 1 via the support slider 23. The bottom of one base plate 22 is slidably connected to the support platform 11, and a hydraulic push rod 24 is installed on the top of the base plate 22. The top of the other base plate 22 is equipped with a stop plate 25, and the output rod of the base plate 22 is connected to the stop plate 25. Within the support assembly 2, the side support 21 and the base plate 22 form a support for the cutting assembly 3, and the hydraulic push rod 24 receives the eel information analyzed from the camera 4, activates the hydraulic push rod 24, and adjusts the distance between the two cutting assemblies 3.

[0026] The cutting assembly 3 includes a cutting blade 31 and a support plate 32. The two sides of the support plate 32 are fixed to the adjacent side support 21. The support plate 32 is threaded with two first positioning screws 34. Both first positioning screws 34 penetrate the support plate 32 and are threaded to the cutting blade 31. An extension plate 33 is installed on the top of the support plate 32. A second positioning screw 35 is threaded on the extension plate 33. The bottom end of the second positioning screw 35 penetrates the extension plate 33 and abuts against the top of the cutting blade 31. The cutting blade 31 in the cutting assembly 3 is used for cutting. It is first horizontally fixed from the side by the support plate 32 and the first positioning screw 34. The top extension plate 33 and the second positioning screw 35 then achieve a longitudinal fixation, which makes the cutting blade 31 more stable when cutting. The initial distance between the cutting blade 31 and the eel can be adjusted as needed to adapt to eels of different thicknesses.

[0027] Drive assembly 5 includes a drive wheel 51 and a driven wheel 53. The drive wheel 51 is connected to the output shaft of drive motor A 7 via a coupling. A transmission belt 52 is provided between the driven wheel 53 and the drive wheel 51, and the drive wheel 51 and the driven wheel 53 are driven by the transmission belt 52. A second rotating rod 56 is mounted on the driven wheel 53. The second rotating rod 56 passes through and extends out of the support platform 11. A linkage slider 57 is provided at the end of the second rotating rod 56 away from the first rotating rod 54. The linkage slider 57 is slidably connected to the second rotating rod 56. A second linkage rod 58 is rotatably connected to the side of the linkage slider 57 away from the second rotating rod 56. The other end of the second linkage rod 58 is connected to the eel propulsion assembly 6. Drive assembly 5 also includes a first rotating rod 54. The first rotating rod 54 is connected to the side of the driven wheel 53 away from the linkage slider 57. The first linkage rod 55 is hinged to the end of the first rotating rod 54 away from the driven wheel 53. The first linkage rod 55 is hinged to the bottom of the adjacent support assembly 2. The eel propulsion assembly 6 includes a support wheel 65 and a drive belt 66. The support wheel 65 and the drive wheel 62 are rotatably connected to the support frame 1. The support wheel 65 is connected to the drive wheel 62 through the drive belt 66. The eel propulsion assembly 6 also includes an outer ring 61 and a drive wheel 62. An inner ring 64 is installed at one end of the drive wheel 62. The outer ring 61 is rotatably connected to the inner ring 64. The contact parts of the outer ring 61 and the inner ring 64 are provided with ratchets that mesh with each other. A third linkage rod 63 is installed on the outer ring 61. The third linkage rod 63 is hinged to the second linkage rod 58. The drive assembly 5 and the eel propulsion assembly 6 work together. The drive assembly 5 can drive the driven wheel 53 through the A drive motor 7, the drive wheel 51, and the transmission belt 52. On one side of the driven wheel 53, the support assembly 2 can be raised and lowered through the first rotating rod 54 and the first linkage rod 55. The rotation of the second rotating rod 56 can also drive the linkage slider 57 to push or pull the second linkage rod 58. With the help of the ratchet inside the inner ring 64 and the outer ring 61, the drive wheel 62 can be rotated intermittently. That is, the rotation of the drive wheel 62 and the support of the third linkage rod 63 can drive the drive belt 66 to rotate and move the eel intermittently.

[0028] Furthermore, the drive belt 66 itself is filled with steel wire to prevent cutting, and the drive belt 66 can also be directly replaced with a stainless steel metal track with built-in meshing teeth. The drive wheel 62 and the support wheel 65 are also provided with gears that cooperate with the drive belt 66. Although this increases the cost, it can cooperate with the cutting component 3 to form a more stable cut.

[0029] Furthermore, this invention is additionally equipped with a computer device, and has built-in operations that can convert image information into specific numerical values. Seafood enters the shooting field of view through a material conveying system, and high-quality images are obtained. The visual processing platform performs real-time calculations to calculate the minimum bounding rectangle of the seafood and obtain three-dimensional parameters, achieving high-precision automated seafood identification. Image intelligent perception technology is introduced to detect and locate the target. Image semantic segmentation algorithm is used to perform fine-grained segmentation of the head, body, and tail of the target fish. The coordinates of the dividing line between the fish head and body returned in the image are used as the cutting path of the cutting blade. After obtaining the numerical value, the support component 2 is controlled to adjust the distance between the two cutting components 3. In order to realize the above image processing and automated control functions, an industrial-grade embedded industrial control computer or high-performance PC is usually equipped as the core computing device, running Windows 10 IoT or Linux operating system to ensure stable operation. The accompanying professional machine vision software platforms, such as OpenCV, Halcon, or VisionPro, can perform operations such as image acquisition, filtering and noise reduction, edge detection, and feature extraction. Combined with neural network models trained using deep learning frameworks such as TensorFlow or PyTorch, it can effectively complete semantic segmentation and key part identification of seafood. In addition, by connecting to a PLC controller through EtherCAT or Modbus communication protocols, it can precisely drive servo motors and hydraulic actuators, ultimately forming a complete closed-loop system of "image recognition - data analysis - mechanical control," truly realizing real-time, precise, and intelligent eel slicing operations.

[0030] Furthermore, after the support platform 11 and the A drive motor 7 can be fixed to each other, they can be slidably connected to the bottom of the support frame 1, thus realizing the adjustment of the initial cut position of the eel head.

[0031] The cleaning assembly 8 includes a gantry frame 81, which is fixedly connected to the top of the support frame 1. A lifting groove is provided on the surface of the gantry frame 81, and a cleaning brush 86 is slidably connected in the lifting groove. Two extension blocks 82 are fixedly connected to the side end of the gantry frame 81. A mounting plate 83 is fixedly connected to the surface of the two extension blocks 82. Multiple nozzles 85 are fixedly connected to the surface of the mounting plate 83, and a water inlet pipe 84 is fixedly connected to the surface of the mounting plate 83.

[0032] The control component 9 includes a U-shaped block 92, which is fixedly connected to the upper end of the gantry frame 81. The upper end of the U-shaped block 92 is rotatably connected to a first transmission gear 94 and a second transmission gear 95, and the first transmission gear 94 and the second transmission gear 95 mesh. The internal thread of the first transmission gear 94 is connected to a lead screw 93, which passes through the U-shaped block 92 and is fixedly connected to a cleaning brush 86. The side end of the U-shaped block 92 is fixedly connected to a B drive motor 91, and the output end of the B drive motor 91 is fixedly connected to the lead screw 93.

[0033] Before processing the eel, its surface is covered with mucus, which can affect subsequent processing. Therefore, the eel is placed on the drive belt 66. Then, by starting the B drive motor 91, the second transmission gear 95 is rotated. Since the second transmission gear 95 meshes with the first transmission gear 94, which is threadedly connected to the lead screw 93, and the cleaning brush 86 is slidably set in the lifting groove, the cleaning brush 86 can move up and down. When the brush at the lower end of the cleaning brush 86 contacts the surface of the eel, the B drive motor 91 is stopped. Then, by using an external water pump and water inlet pipe 84, cleaning fluid is injected into the mounting plate 83. The cleaning fluid is then sprayed onto the surface of the eel through the nozzle 85. At this time, the drive belt 66 moves the eel. During the movement, the surface of the eel is sprayed with cleaning fluid. Through the relative movement between the eel and the cleaning brush 86, the mucus on the surface of the eel can be washed away, thus preventing the mucus from affecting subsequent processing.

[0034] A positioning method for a precision positioning eel slicing machine, the specific steps of which are as follows: S1. First, place the eel on the drive belt 66, start the B drive motor 91, and bring the brush at the lower end of the cleaning brush 86 into contact with the surface of the eel. Then, inject cleaning fluid into the mounting plate 83 through an external water pump and spray the cleaning fluid onto the surface of the eel through the nozzle 85. By moving the eel with the drive belt 66, the mucus on the surface of the eel can be washed away.

[0035] S2. After the eel is pre-treated, it is placed on the drive belt 66, the camera 4 and the A drive motor 7 are started, and water is poured on the surface of the drive belt 66 to increase the lubrication effect. S2a. After adjusting the cutting blade 31 to the appropriate height and cutting force, the slightly elastic surface of the drive belt 66 ensures that the eel can be cut in one stroke. After the S3 and A drive motor 7 starts, it will drive the first linkage rod 55 through the rotation of the first rotating rod 54, which will drive the base plate 22 to rise or fall. The two base plates 22 are supported by the side support frame 21, the support slider 23, and the support frame 1, which will drive the cutting component 3 to rise and fall to cut the eel. S4. While cutting the eel, multiple cameras 4 will monitor it at all times. After the eel enters the field of view of the camera 4, the camera 4 obtains a high-quality image and then transmits the image to an external computer. The computer performs real-time calculations after visual processing to calculate the minimum bounding rectangle of the seafood and obtain three-dimensional parameters. This enables the identification of the seafood and the proportion of the head and tail. Then, the hydraulic push rod 24 is activated to adjust the distance between the two cutting components 3. S4a. While the driven wheel 53 rotates, it also drives the eel propulsion assembly 6 to rotate through the second rotating rod 56, the linkage slider 57, and the second linkage rod 58. Inside the eel propulsion assembly 6, the drive wheel 62, the third linkage rod 63, and the drive belt 66 form a main body connected to the support frame 1. One side of the drive wheel 62 is connected to the outer ring 61 through the inner ring 64. The meshing teeth in the inner ring 64 and the outer ring 61 allow the drive wheel 62 to rotate through the inner ring 64 when the outer ring 61 rotates clockwise. When the outer ring 61 rotates counterclockwise, the inner ring 64 does not rotate with the outer ring 61, thus creating an effect of intermittently propelling the drive belt 66 and the eel. This ensures that each push will allow an eel to enter the cutting area. The cutting and propulsion operations can be achieved through an A drive motor 7. With the help of the camera 4, the adjustment of the linkage support assembly 2 and the cutting of the cutting assembly 3 can be observed, realizing a production line operation.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision positioning eel filleting machine characterised in that: The device includes a support frame (1), a support assembly (2) slidably connected to the top of the support frame (1), a support platform (11) mounted on the support frame (1), the top of the support platform (11) slidably connected to the adjacent support assembly (2), a drive assembly (5) fixed on the support platform (11), an eel propulsion assembly (6) mounted on the top of the support frame (1), two eel-cutting assemblies (3) mounted on the support assembly (2), a cleaning assembly (8) fixedly connected to the top of the support frame (1), and a control assembly (9) provided on the cleaning assembly (8). The support frame (1) is also equipped with multiple cameras (4) for observing the position of the eel cutter, and the bottom of the support frame (1) is also fixed with an A drive motor (7) of the drive assembly (5).

2. The precision positioning eel filleting machine according to claim 1, characterized in that: The support assembly (2) includes two base plates (22), each of which is equipped with a side support frame (21). Each of the four side support frames (21) is slidably connected with a support slider (23). Each of the four side support frames (21) is slidably connected to the support frame (1) via the support slider (23). The bottom of one base plate (22) is slidably connected to the support platform (11), and the top of the base plate (22) is equipped with a hydraulic push rod (24). The top of the other base plate (22) is equipped with a stop plate (25), and the output rod of the base plate (22) is connected to the stop plate (25).

3. The precision positioning eel filleting machine according to claim 2, characterized in that: The cutting assembly (3) includes a cutting blade (31) and a support plate (32). The two sides of the support plate (32) are fixed to the adjacent side support (21). The support plate (32) is threaded with two first positioning screws (34). Both first positioning screws (34) penetrate the support plate (32) and are threaded to the cutting blade (31). An extension plate (33) is installed on the top of the support plate (32). A second positioning screw (35) is threaded on the extension plate (33). The bottom end of the second positioning screw (35) penetrates the extension plate (33) and abuts against the top of the cutting blade (31).

4. The precision positioning eel filleting machine according to claim 2, characterized in that: The drive assembly (5) includes a drive wheel (51) and a driven wheel (53). The drive wheel (51) is connected to the output shaft of the drive motor (7) via a coupling. A transmission belt (52) is provided between the driven wheel (53) and the drive wheel (51). The drive wheel (51) and the driven wheel (53) are driven by the transmission belt (52). A second rotating rod (56) is installed on the driven wheel (53). The second rotating rod (56) passes through and extends out of the support platform (11).

5. The precision positioning eel filleting machine according to claim 4, characterized in that: The second rotating rod (56) is provided with a linkage slider (57) at one end away from the first rotating rod (54). The linkage slider (57) is slidably connected to the second rotating rod (56). The side of the linkage slider (57) away from the second rotating rod (56) is rotatably connected to a second linkage rod (58). The other end of the second linkage rod (58) is connected to the eel propulsion assembly (6). The drive assembly (5) also includes a first rotating rod (54). The first rotating rod (54) is connected to the side of the driven wheel (53) away from the linkage slider (57). The end of the first rotating rod (54) away from the driven wheel (53) is hinged to a first linkage rod (55). The first linkage rod (55) is hinged to the bottom of the adjacent base plate (22).

6. The precision positioning eel filleting machine according to claim 5, characterized in that: The eel propulsion assembly (6) includes a support wheel (65) and a drive belt (66). The support wheel (65) and the drive wheel (62) are rotatably connected to the support frame (1). The support wheel (65) is connected to the drive wheel (62) via the drive belt (66).

7. The precision positioning eel filleting machine according to claim 6, characterized in that: The eel propulsion assembly (6) also includes an outer ring (61) and a drive wheel (62). An inner ring (64) is installed at one end of the drive wheel (62). The outer ring (61) and the inner ring (64) are rotatably connected. The contact parts of the outer ring (61) and the inner ring (64) are provided with ratchet wheels that mesh with each other. A third linkage rod (63) is installed on the outer ring (61). The third linkage rod (63) is hinged to the second linkage rod (58).

8. The precision positioning eel filleting machine according to claim 1, characterized in that: The cleaning assembly (8) includes a gantry frame (81), which is fixedly connected to the top of the support frame (1). The surface of the gantry frame (81) is provided with a lifting groove, and a cleaning brush (86) is slidably connected in the lifting groove. Two extension blocks (82) are fixedly connected to the side end of the gantry frame (81). Mounting plates (83) are fixedly connected to the surface of the two extension blocks (82). Multiple nozzles (85) are fixedly connected to the surface of the mounting plates (83), and a water inlet pipe (84) is fixedly connected to the surface of the mounting plates (83).

9. The precision positioning eel filleting machine according to claim 8, characterized in that: The control component (9) includes a U-shaped block (92), which is fixedly connected to the upper end of the gantry (81). The upper end of the U-shaped block (92) is rotatably connected to a first transmission gear (94) and a second transmission gear (95), and the first transmission gear (94) and the second transmission gear (95) mesh. The first transmission gear (94) is internally threaded with a lead screw (93), and the lead screw (93) passes through the U-shaped block (92). The lead screw (93) is fixedly connected to a cleaning brush (86). The side end of the U-shaped block (92) is fixedly connected to a B drive motor (91), and the output end of the B drive motor (91) is fixedly connected to the lead screw (93).

10. A method of positioning a precision positioning eel filleting machine according to any one of claims 1 to 9, wherein: The method includes the following steps: S1. First, place the eel on the drive belt (66), start the B drive motor (91), and bring the brush at the bottom of the cleaning brush (86) into contact with the surface of the eel. Then, inject cleaning liquid into the mounting plate (83) through an external water pump and spray the cleaning liquid onto the surface of the eel through the nozzle (85). Move the eel with the drive belt (66) to wash away the mucus on the surface of the eel. S2. After the eel is pre-treated, it is placed on the drive belt (66), the camera (4) and the A drive motor (7) are started, and water is poured on the surface of the drive belt (66) to increase the lubrication effect. S2a. After adjusting the cutting blade (31) to the appropriate height and cutting force, the slightly elastic surface of the drive belt (66) ensures that the eel can be cut in one stroke. After the S3 and A drive motor (7) starts, it will be driven by the drive wheel (51), the transmission belt (52) and the driven wheel (53). First, the rotation of the first rotating rod (54) will drive the first linkage rod (55) to move together. That is, the base plate (22) can be raised or lowered by the drive of the first rotating rod (54). The two base plates (22) are supported by the side support frame (21), the support slider (23) and the support frame (1), which will drive the cutting component (3) to rise and fall to cut the eel. S4. While cutting the eel, multiple cameras (4) will monitor it at all times. After the eel enters the field of view of the camera (4), the camera (4) obtains a high-quality image and then transmits the image to an external computer. The computer performs real-time calculations after visual processing to calculate the minimum bounding rectangle of the seafood and obtain three-dimensional parameters. This enables the identification of the seafood and the ratio of the head and tail. Then, the hydraulic push rod (24) is activated to start adjusting the distance between the two cutting components (3). S4a. While the driven wheel (53) rotates, it also drives the eel propulsion assembly (6) to rotate via the second rotating rod (56), the linkage slider (57), and the second linkage rod (58). Inside the eel propulsion assembly (6), the drive wheel (62), the third linkage rod (63), and the drive belt (66) form a main body connected to the support frame (1). One side of the drive wheel (62) is connected to the outer ring (61) via the inner ring (64). The teeth that mesh with each other in the inner ring (64) and the outer ring (61) allow the outer ring (61) to rotate clockwise. The inner ring (64) drives the drive wheel (62) to rotate. When the outer ring (61) rotates counterclockwise, the inner ring (64) will not rotate with the rotation of the outer ring (61), thus creating an effect of intermittently pushing the drive belt (66) and the eel. This ensures that each push will allow an eel to enter the area to be cut. The cutting and pushing operations can be achieved through an A drive motor (7). The camera (4) can be used to observe the adjustment of the linkage support component (2) and the cutting component (3), thus achieving a production line operation.

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