Fillet mixing and stirring device

Abstract

The invention relates to the technical field of fish fillet deep processing, and provides a fish fillet mixing and stirring device which comprises a mixing barrel and a stirring mechanism, an inner cylinder is rotatably sleeved in the mixing barrel, a plurality of buffer flanges are arranged at the bottom of the inner cylinder along the circumferential direction, and a heating structure is wound on the outer wall of the inner cylinder; the stirring mechanism is erected on the mixing barrel and comprises a stirring shaft which extends into the inner barrel and is rotationally arranged, the stirring shaft is rotationally sleeved with a stirring frame, the stirring frame is fixedly connected with the inner wall of the inner barrel and rotates synchronously with the inner barrel, a scraper is installed on the outer side of the stirring frame, and a plurality of paddle sleeves are assembled on the stirring shaft at intervals up and down; the scraping plate and the paddle sleeve are respectively provided with a soft outer layer which is propped against the fish slices; through reverse rotation of the stirring shaft and the inner cylinder, fillets are subjected to multi-direction composite acting force in the stirring process, so that the problems of material one-way accumulation and stirring dead angles easily caused by traditional one-way rotation are effectively avoided, and the seasoning distribution uniformity is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of fish fillet deep processing technology, and more specifically, to a fish fillet mixing and stirring device. Background Technology

[0002] Marinating, seasoning, and mixing of auxiliary ingredients for fish fillets are core processes for ensuring product taste and quality. Currently, the industry mostly uses conventional horizontal or vertical mixing equipment to complete this process. While these general-purpose mixing devices can achieve basic material mixing, they have significant shortcomings in adapting to the characteristics of fish fillet processing. Fish fillets are tender and have fragile fibers. Traditional mixing devices often use rigid mixing blades, which directly scrape and squeeze the fish fillets during mixing, easily causing them to break and crumble, affecting the integrity and yield of the finished product. At the same time, conventional mixing structures are mostly unidirectional rotational mixing, which can easily lead to local accumulation of materials and mixing dead zones in the tank. Seasonings and marinade cannot come into uniform contact with the fish fillets, resulting in uneven flavoring and poor quality stability in batches, making it difficult to meet the quality control requirements of large-scale production. Summary of the Invention

[0003] Therefore, in order to solve the problem that fish fillets are easily damaged and broken during the mixing process, the present invention provides a fish fillet mixing device, the specific technical solution of which is as follows:

[0004] A fish fillet mixing and stirring device includes a mixing tank and a stirring mechanism; an inner cylinder is rotatably fitted inside the mixing tank, and multiple buffer flanges are provided circumferentially at the bottom of the inner cylinder, with a heating structure surrounding the outer wall of the inner cylinder; the stirring mechanism is mounted on the mixing tank, and includes a stirring shaft extending into the inner cylinder and rotatably arranged, a stirring frame being rotatably fitted on the stirring shaft, the stirring frame being fixedly connected to the inner wall of the inner cylinder and rotating synchronously with the inner cylinder, a scraper being installed on the outer side of the stirring frame, and a number of paddle sleeves being fitted vertically and horizontally on the stirring shaft, with a soft outer layer on both the scraper and the paddle sleeves that abuts against the fish fillets.

[0005] The aforementioned fish fillet mixing and stirring device, by setting up a stirring shaft and inner cylinder that rotate synchronously in opposite directions, enables the fish fillets to achieve uniform seasoning under the compound stirring action of relative motion, effectively avoiding the problems of fish fillet accumulation and breakage that are easily caused by traditional unidirectional stirring. The buffer flange set at the bottom of the inner cylinder can lift the fish fillets to avoid the direct hard squeezing of the scraper. Together with the soft outer layer on the scraper and the paddle sleeve, it further reduces the mechanical damage to the physical structure of the fish fillets, ensuring the integrity and appearance quality of the fish fillets. At the same time, the heating structure surrounding the outer wall of the inner cylinder can gently heat the materials during the stirring process, which helps the seasoning to penetrate and infuse the flavor, improving the seasoning effect and processing efficiency.

[0006] Furthermore, the mixing tank includes an outer cylinder, a first mounting base, and a second mounting base. The first mounting base and the second mounting base are respectively mounted on the top and bottom of the outer cylinder. A first driving component is mounted on the first mounting base, and the output end of the first driving component is connected to the stirring shaft. A second driving component is mounted on the second mounting base, and a turntable is sleeved on the output end of the second driving component. The turntable extends to be fixedly connected to the bottom of the inner cylinder.

[0007] Furthermore, a gap cavity is formed between the outer cylinder and the inner cylinder, and the heating structure is installed in the gap cavity. The heating structure includes a heating pipe spirally wound around the outer wall surface of the inner cylinder.

[0008] Furthermore, the inner wall of the inner cylinder is provided with a plurality of buffer grooves along the circumferential direction, and the buffer flange is connected to the buffer groove by a pin. The buffer flange is provided with a buffer surface, and the buffer surface forms an obtuse angle with the inner wall of the inner cylinder. A buffer mechanism is provided between the buffer flange and the buffer groove.

[0009] Furthermore, the stirring frame includes a first frame and a second frame that are sequentially rotated and sleeved on the stirring shaft. The first frame has arms that are fixedly connected to the inner cylinder on both sides. Each arm is equipped with a first blade, which is arranged facing each other. Each arm is also equipped with a scraper, which is arranged in opposite directions. The surfaces of the first blades and the scrapers are provided with the soft outer layer. The second frame is fixedly connected to the two arms on both sides. The second frame has a notch for the turntable to extend.

[0010] Furthermore, the stirring shaft includes a transmission body and a shaft body. One end of the transmission body is connected to the first driving component. The first frame is rotatably sleeved on the outer periphery of the transmission body. The other end of the transmission body is fixedly connected to the shaft body through a connecting shaft joint. The second frame is rotatably sleeved on the outer periphery of the shaft body. Several paddle sleeves are fixedly sleeved on the shaft body at intervals. The paddle sleeves are provided with multiple second blades in the circumferential direction. The surface of the second blades is also provided with the soft outer layer.

[0011] Furthermore, the fish fillet mixing and stirring device also includes a feeding and sorting mechanism, which includes a feeding component, a batching component, a detection component, and a discharging component located above the mixing cylinder, all connected sequentially along the fish fillet conveying direction.

[0012] Furthermore, the feeding assembly includes a feeding rack, a feeding platform, and a feeding head. The feeding rack is provided with a hopper, and a transition chain plate is provided between the hopper and the feeding platform. The feeding platform is provided with multiple feeding tracks, and a material separating column protrudes from the gap between adjacent feeding tracks. An arc-shaped guide bar is connected to the end of the feeding track. The feeding head is connected to the feeding platform and located below the arc-shaped guide bar. A docking hopper is fixedly provided at the bottom of the feeding head.

[0013] Furthermore, the batching component is equipped with a conveyor chain, and a conveyor belt is provided between the detection component and the unloading component. The conveyor chain is connected to the conveyor belt and the two cooperate to form a conveying channel for conveying fish fillets. The batching component includes a sorting rack located below the docking hopper. Multiple lifting chains are spaced apart in the sorting rack. Multiple trays for supporting fish fillets are spaced apart on the lifting chains. Each lifting chain is connected to one of the conveying channels.

[0014] Furthermore, the detection assembly is equipped with a detection beam located above the conveying channel. A detection head and a camera are installed on the detection beam at positions corresponding to each of the conveying channels. The detection head is mounted on the detection beam via a first base, and the camera is slidably mounted on the detection beam via a second base. The camera can be raised and lowered relative to the conveying channel. An arc-shaped groove is provided on the first base, and the detection head can move along the trajectory of the arc-shaped groove relative to the conveying channel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the mixing tank of the fish fillet mixing and stirring device according to an embodiment of the present invention; Figure 2 This is a partial cross-sectional view of the inner cylinder of the fish fillet mixing and stirring device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the stirring mechanism of the fish fillet mixing and stirring device according to an embodiment of the present invention; Figure 4 This is one of the structural schematic diagrams of the feeding and sorting mechanism of the fish fillet mixing and stirring device according to an embodiment of the present invention; Figure 5 This is a second schematic diagram of the feeding and sorting mechanism of the fish fillet mixing and stirring device according to an embodiment of the present invention; Figure 6 yes Figure 5 A magnified schematic diagram of the structure of part A in the diagram; Figure 7 yes Figure 5 A magnified schematic diagram of the partial structure of B in the diagram; Figure 8 yes Figure 5 A magnified schematic diagram of the structure of C in the middle; Figure 9 This is the third schematic diagram of the feeding and sorting mechanism of the fish fillet mixing and stirring device according to an embodiment of the present invention.

[0016] Explanation of reference numerals in the attached figures: 1. Mixing tank; 11. Inner cylinder; 111. Buffer flange; 112. Buffer groove; 113. Buffer surface; 114. Pin; 115. Spring; 12. Outer cylinder; 121. Heat dissipation valve; 13. First mounting base; 14. Second mounting base; 15. First driving component; 16. Second driving component; 2. Stirring mechanism; 21. Stirring shaft; 211. Transmission body; 212. Shaft; 22. Stirring frame; 221. First frame; 222. Second frame; 223. First blade; 23. Scraper; 24. Paddle sleeve; 241. Second blade; 3. Feeding assembly; 31. Discharge rack; 32. Feeding platform; 3 3. Feeding head; 34. Transition chain plate; 35. Feeding track; 36. Material separator column; 37. Arc-shaped guide bar; 4. Batch assembly; 42. Material sorting rack; 43. Lifting chain; 44. Pallet; 5. Detection assembly; 51. Detection beam; 52. Detection head; 53. Camera; 54. First base; 55. Second base; 6. Unloading assembly; 61. Sorting box; 62. Collection conveyor belt; 63. Pushing nozzle; 64. Collection hopper; 65. Return head; 66. Brush wheel; 67. Return slide; 68. Return conveyor belt; 681. First interface; 682. Second interface; 69. Return lifting belt. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the scope of protection of the invention.

[0018] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0020] In this invention, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.

[0021] like Figures 1-3 As shown, a fish fillet mixing and stirring device according to an embodiment of the present invention includes a mixing tank 1 and a stirring mechanism 2; an inner cylinder 11 is rotatably sleeved inside the mixing tank 1, and a plurality of buffer flanges 111 are provided along the circumferential direction at the bottom of the inner cylinder 11, and a heating structure is provided around the outer wall of the inner cylinder 11; the stirring mechanism 2 is mounted on the mixing tank 1, and the stirring mechanism 2 includes a stirring shaft 21 extending into the inner cylinder 11 and rotatably arranged, a stirring frame 22 is rotatably sleeved on the stirring shaft 21, the stirring frame 22 is fixedly connected to the inner wall of the inner cylinder 11 and rotates synchronously with the inner cylinder 11, a scraper 23 is installed on the outer side of the stirring frame 22, and a plurality of paddle sleeves 24 are mounted on the stirring shaft 21 at intervals above and below, and both the scraper 23 and the paddle sleeves 24 are provided with a soft outer layer that abuts against the fish fillets.

[0022] The aforementioned fish fillet mixing and stirring device, by setting up a stirring shaft 21 and an inner cylinder 11 that rotate synchronously in opposite directions, enables the fish fillets to achieve uniform seasoning under the compound stirring action of relative motion, effectively avoiding the problems of fish fillet accumulation and breakage that are easily caused by traditional unidirectional stirring; the buffer flange 111 set at the bottom of the inner cylinder 11 can lift the fish fillets to avoid the direct hard extrusion of the scraper 23, and together with the soft outer layer on the scraper 23 and the paddle sleeve 24, it further reduces the mechanical damage to the physical structure of the fish fillets, ensuring the integrity and appearance quality of the fish fillets; at the same time, the heating structure surrounding the outer wall of the inner cylinder 11 can gently heat the materials during the stirring process, which helps the seasoning to penetrate and infuse, improving the seasoning effect and processing efficiency.

[0023] The device utilizes the counter-rotation of the stirring shaft 21 and the inner cylinder 11 to create relative motion between them. This causes the fish slices to be subjected to multi-directional compound forces during stirring, effectively avoiding the problems of unidirectional material accumulation and dead zones that are easily caused by traditional unidirectional rotation. This significantly improves the uniformity of seasoning distribution. At the same time, the gentle tumbling effect generated by the counter-rotation allows the fish slices to remain suspended or tumble during stirring, reducing continuous contact and compression with rigid components. This reduces mechanical damage to the physical structure of the fish slices from the source, balancing mixing efficiency and material integrity.

[0024] Preferably, the soft outer layer is a rubber layer. While ensuring flexible contact with the surface of the fish fillets and avoiding scratches or indentations, it further enhances the elastic buffering capacity and friction when the stirring component contacts the fish fillets. This not only enhances the physical protection of the fish fillets, but also helps the seasonings adhere evenly through moderate friction, thus optimizing the uniformity and smoothness of the mixing process.

[0025] like Figure 1 and Figure 3 As shown, in one embodiment, the mixing tank 1 includes an outer cylinder 12, a first mounting base 13, and a second mounting base 14. The first mounting base 13 and the second mounting base 14 are respectively mounted on the top and bottom of the outer cylinder 12. A first driving component 15 is mounted on the first mounting base 13, and the output end of the first driving component 15 is connected to the stirring shaft 21. A second driving component 16 is mounted on the second mounting base 14, and a turntable is sleeved on the output end of the second driving component 16. The turntable extends to be fixedly connected to the bottom of the inner cylinder 11. By independently setting the first driving component 15, which drives the stirring shaft 21 to rotate, and the second driving component 16, which drives the inner cylinder 11 to rotate, on the top and bottom of the mixing tank 1, spatial separation and independent control of the power source are achieved. In addition, this structural layout not only makes the transmission connection more compact and stable, but also allows for flexible adjustment of the rotation speed and direction of the stirring shaft 21 and the inner cylinder 11 according to process requirements, thereby accurately matching the different requirements of stirring intensity for different fish fillet sizes and seasoning processes, optimizing the stirring effect and equipment applicability.

[0026] In one embodiment, a gap cavity is formed between the outer cylinder 12 and the inner cylinder 11, and a heating structure is installed within the gap cavity. The heating structure includes a heating pipe spirally wound around the outer wall surface of the inner cylinder 11. This achieves uniform circumferential heating of the inner cylinder 11, allowing heat to be smoothly conducted to the material through the inner cylinder 11 wall, avoiding thermal damage to the fish fillets caused by localized high temperatures. Simultaneously, the structural design of the gap cavity forms an effective heat buffer zone, improving heating efficiency and reducing energy loss caused by heat diffusion to the outer cylinder 12, thus optimizing the energy efficiency and heating uniformity of the device.

[0027] like Figure 1 As shown, the outer cylinder 12 is further provided with a heat dissipation valve 121 that communicates with the gap cavity. When the heating structure causes the inner cylinder 11 to become too hot due to operation, or when rapid cooling is required after stirring, the accumulated heat in the cavity can be quickly discharged by opening the valve, avoiding the continuous effect of residual heat on the fish fillets, which may cause overcooking or textural damage. This achieves active regulation of the temperature in the heating cavity and management of residual heat, which not only ensures the differentiated temperature requirements of different process stages, but also improves the safety and temperature control flexibility of the device operation.

[0028] like Figure 2As shown, in one embodiment, the inner wall of the inner cylinder 11 is provided with a plurality of buffer grooves 112 along the circumferential direction. A buffer flange 111 is connected to the buffer groove 112 via a pin 114. The buffer flange 111 has a buffer surface 113, and the buffer surface 113 forms an obtuse angle with the inner wall of the inner cylinder 11. A buffer mechanism is provided between the buffer flange 111 and the buffer groove 112. The inner wall of the inner cylinder 11 is movably fitted with the buffer flange 111 with the obtuse-angled buffer surface 113 via the buffer groove 112, and together with the buffer mechanism, forms a flexible support structure. When the fish fillet falls with the rotation of the inner cylinder 11, it first contacts the inclined buffer surface 113. Under the synergistic effect of the buffer mechanism, the falling impact force is effectively absorbed and dispersed, guiding the fish fillet to slide smoothly into the stirring area, avoiding direct rigid collision with the scraper 23, significantly reducing the breakage rate of the fish fillet, and improving the stability and reliability of the material conveying process.

[0029] like Figure 2 As shown, specifically, both the buffer flange 111 and the buffer groove 112 have fan-shaped cross-sections, and the pin 114 is located at the center of the corresponding circular cross-sections of the buffer flange 111 and the buffer groove 112. The arc-shaped surface of the buffer flange 111 fits against the arc-shaped groove wall of the buffer groove 112, and the buffer surface 113 is located on the planar outer surface of the buffer flange 111. The buffering mechanism is located between the inner surface of the buffer flange 111 and the planar bottom of the buffer groove 112. This specific structure, by designing both the buffer flange 111 and the buffer groove 112 as fan-shaped cross-sections and placing the pin 114 at the center, allows the buffer flange 111 to rotate stably around the pin 114 within the buffer groove 112, achieving adaptive adjustment of the angle of the buffer surface 113. The fit between the arc-shaped surface of the buffer flange 111 and the arc-shaped groove wall of the buffer groove 112 ensures rotational accuracy and forms an effective limiting guide. The buffer mechanism is located between the inner side of the buffer flange 111 and the bottom of the buffer groove 112. When the fish fillet impacts the buffer surface 113, the buffer mechanism is compressed and absorbs kinetic energy. After unloading, it pushes the buffer flange 111 to automatically reset, thus forming a continuous and reliable dynamic buffer protection mechanism, which further optimizes the flexible support effect on the fish fillet.

[0030] like Figure 2 As shown, preferably, the buffer mechanism is a spring 115 or mutually repelling magnetic blocks disposed between the inner side of the buffer flange 111 and the bottom of the buffer groove 112. Using a spring 115 results in a simple and reliable structure, effectively absorbing the impact energy of the falling fish fillet through compression deformation. Using mutually repelling magnetic blocks avoids mechanical fatigue and frictional loss, improving the sensitivity and service life of the buffer response. Both methods ensure that the buffer flange 111 returns to its original position promptly after being subjected to force, maintaining a flexible support effect on the fish fillet, further enhancing the operational stability and material protection performance of the device.

[0031] like Figure 3As shown, in one embodiment, the stirring frame 22 includes a first frame 221 and a second frame 222 that are sequentially rotated and fitted onto the stirring shaft 21. The first frame 221 has arms on both sides that are fixedly connected to the inner cylinder 11. First blades 223 are mounted on each arm, with the first blades 223 facing each other. Scrapers 23 are also mounted on each arm, with the scrapers 23 facing opposite directions. The surfaces of the first blades 223 and the scrapers 23 are covered with a soft outer layer. The second frame 222 is fixedly connected to the two arms on both sides, and a notch is formed on the second frame 222 for the turntable to extend from. In this embodiment, the stirring frame 22 forms a stable double-layer structure through the vertically distributed first frame 221 and second frame 222. The arms on both sides of the first frame 221 are fixedly connected to the inner cylinder 11, achieving synchronous rotation of the stirring frame 22 and the inner cylinder 11. The first blades 223, arranged facing each other on both sides, push the fish slices towards the center during rotation, preventing the material from scattering outwards. Meanwhile, the scrapers 23, arranged in opposite directions on both sides, scrape the inner wall bidirectionally as the inner cylinder 11 rotates, preventing the fish slices from sticking together and promoting uniform material movement. Simultaneously, the soft outer layer of the first blades 223 and scrapers 23 ensures flexible contact, effectively protecting the integrity of the fish slices. Furthermore, the recess on the second frame 222 provides clearance for the turntable, ensuring a compact installation and smooth operation of the transmission structure.

[0032] like Figure 3 As shown, in one embodiment, the stirring shaft 21 includes a transmission body 211 and a shaft body 212. One end of the transmission body 211 is connected to the first driving member 15. A first frame 221 is rotatably sleeved on the outer circumference of the transmission body 211. The other end of the transmission body 211 is fixedly connected to the shaft body 212 via a connecting shaft joint. A second frame 222 is rotatably sleeved on the outer circumference of the shaft body 212. Several paddle sleeves 24 are fixedly sleeved on the shaft body 212 at intervals. Multiple second blades 241 are provided on the circumference of the paddle sleeves 24, and the surface of the second blades 241 is also provided with a soft outer layer. The stirring shaft 21 adopts a split structure in which the transmission body 211 and the shaft body 212 are fixed by a connecting shaft joint, which facilitates rotational sleeve connection with the first frame 221 and the second frame 222 respectively, realizing a modular layout of transmission and stirring functions. Multiple paddle sleeves 24 with second blades 241 are fixedly fitted onto the shaft 212 at intervals. The surface of the second blades 241 is covered with a soft outer layer, which can gently tumble the fish fillets in multiple layers when rotating with the stirring shaft 21. This, combined with the movement of the stirring frame 22, further improves the uniformity of seasoning. At the same time, this structural design makes the power transmission more stable and reliable, and the compact layout of each component facilitates assembly and maintenance.

[0033] like Figure 4 , Figure 5 and Figure 9As shown, in one embodiment, the fish fillet mixing and stirring device further includes a feeding and sorting mechanism. This mechanism comprises a feeding component 3, a batching component 4, a detection component 5, and a discharging component 6 located above the mixing drum, all connected sequentially along the fish fillet conveying direction. By integrating the feeding and sorting mechanism, consisting of the feeding component 3, batching component 4, detection component 5, and discharging component 6, above the mixing drum 1, automated pre-processing of the fish fillets before they enter the mixing device is achieved. The feeding component 3 is responsible for continuous feeding, the batching component 4 quantitatively separates the fish fillets to avoid accumulation, the detection component 5 can perform online identification and screening of fish fillet size or shape, and the discharging component 6 accurately delivers qualified materials into the mixing drum 1. This integrated layout not only shortens the material transfer path and reduces the risk of manual intervention and contamination, but also effectively improves feeding efficiency and batch consistency, laying a good foundation for subsequent uniform mixing.

[0034] like Figure 5 and Figure 6 As shown, in one embodiment, the feeding assembly 3 includes a feeding rack 31, a feeding platform 32, and a feeding head 33. The feeding rack 31 is equipped with a hopper, and a transition chain plate 34 is provided between the hopper and the feeding platform 32. The feeding platform 32 is equipped with multiple feeding tracks 35, and material-separating posts 36 protrude from the gaps between adjacent feeding tracks 35. Arc-shaped guide bars 37 are connected to the ends of the feeding tracks 35. The feeding head 33 is connected to the feeding platform 32 and located below the arc-shaped guide bars 37. A docking hopper is fixedly provided at the bottom of the feeding head 33. The feeding assembly 3 achieves stable conveying of fish fillets through the transition chain plate 34 between the hopper on the feeding rack 31 and the feeding platform 32, avoiding material accumulation and blockage in the initial feeding stage. The multiple feeding tracks 35 on the feeding platform 32, in conjunction with the material-separating posts 36 protruding from the gaps, can effectively divert and guide the fish fillets, preventing them from sticking together or overlapping, ensuring that each fish fillet is conveyed independently and orderly forward. The arc-shaped guide bar 37 at the end of the feeding track 35 can guide the fish fillets to slide smoothly onto the feeding head 33, and then accurately deliver them to the subsequent work station through the bottom docking hopper, thereby realizing the orderly, continuous and stable feeding of fish fillets, and providing a reliable guarantee for subsequent batch testing and mixing operations.

[0035] like Figure 5 and Figure 9As shown, in one embodiment, a conveyor chain is provided within the batching component 4, and a conveyor belt runs through between the detection component 5 and the unloading component 6. The conveyor chain and the conveyor belt are connected and cooperate to form a conveying channel for conveying fish fillets. The batching component 4 includes a sorting rack 42 located below the docking hopper. Multiple lifting chains 43 are spaced apart within the sorting rack 42, and multiple trays 44 for supporting fish fillets are spaced apart on the lifting chains 43. Each lifting chain 43 is connected to a conveying channel. The batching component 4, through the multiple lifting chains 43 and their trays 44 spaced apart within the sorting rack 42, supports and lifts the fish fillets falling from the docking hopper piece by piece, achieving automatic quantitative batching of fish fillets. Each lifting chain 43 is connected to a conveying channel formed by the conveyor chain and the conveyor belt, ensuring that the fish fillets remain orderly arranged and continuously conveyed during the transfer from the batching component 4 to the detection component 5 and the unloading component 6. This structural design, through multi-channel parallel conveying and lifting, not only improves batching efficiency but also avoids the accumulation and collision of fish fillets during the transfer process, creating favorable conditions for subsequent online inspection and precise feeding.

[0036] like Figure 5 and Figure 7 As shown, in one embodiment, the detection assembly 5 is equipped with a detection beam 51 located above the conveying channel. A detection head 52 and a camera 53 are installed on the detection beam 51 at positions corresponding to each conveying channel. The detection head 52 is mounted on the detection beam 51 via a first base 54, and the camera 53 is slidably mounted on the detection beam 51 via a second base 55. The camera 53 can be raised and lowered relative to the conveying channel. An arc-shaped groove is provided on the first base 54, allowing the detection head 52 to move along the trajectory of the arc-shaped groove relative to the conveying channel. By installing the detection beam 51 above the conveying channel and independently configuring the detection head 52 and camera 53 for each channel, the detection assembly 5 achieves multi-point parallel online detection of fish fillets. The camera 53 is slidably mounted on the second base 55 and can be raised and lowered relative to the conveyor channel. Its focal length can be flexibly adjusted according to the thickness of the fish fillets, ensuring the clarity and accuracy of image acquisition. The detection head 52 is mounted via an arc-shaped groove on the first base 54 and can adjust its detection angle along an arc-shaped trajectory, thus adapting to different fish fillet specifications and detection requirements, and achieving accurate identification of fish fillet shape, size, or surface defects. This design significantly improves the flexibility and applicability of the detection process, providing reliable support for subsequent automatic sorting and data traceability.

[0037] In one specific implementation, the detection head 52 can employ a fish quality measuring instrument based on the principle of bioelectrical impedance analysis, such as the DFA110 model manufactured by Yamato Corporation of Japan. Its working principle involves using electrodes to contact the fish fillets and measuring the impedance changes of cell tissue during rigor mortis and autolysis. As the fish's mortality time increases, cell membrane permeability changes, muscle tissue softens, and the impedance value decreases accordingly. By analyzing impedance data at specific frequencies, the detection head 52 can quantitatively determine the freshness grade of the fish fillets (e.g., Grade A firm, Grade B softened), and can also calculate fat content, thereby sorting the raw materials before mixing to ensure consistent freshness of the fish fillets entering the mixing process. As another implementation method, the detection head 52 can also be selected from a diseased meat detector based on hyperspectral or multispectral analysis technology, such as the KJ-3BH model from Kezhijie. Its principle is to irradiate the fish fillet with visible light of a specific wavelength, and by detecting the specific spectral absorption characteristics of histamine, volatile basic nitrogen, and other indicators in the fish fillet after reacting with a colorimetric reagent, the concentration of the analyte is calculated according to Lambert-Beer's law, thereby identifying whether the fish fillet has spoiled or exhibits disease characteristics, providing a preliminary guarantee for food safety.

[0038] Camera 53 can be configured as a high-performance industrial intelligent camera, such as the VC40xx series from Vision Components in Germany. This series of cameras has a built-in digital signal processor (DSP) and can independently complete image acquisition and processing tasks. In specific applications, it can be used in conjunction with a structured light laser (such as a Stocker-Yale laser) to form a three-dimensional vision measurement system. Its working principle is that the laser projects specific light patterns onto the surface of the fish fillet, and camera 53 acquires the image of the light stripes highly modulated by the fish fillet from a fixed angle (e.g., 45° angle with the conveyor belt). The three-dimensional coordinates of each point on the surface of the fish fillet are calculated using triangulation, thereby accurately reconstructing the outline, thickness, volume, and even estimating the weight of the fish fillet. In addition, for surface defect detection, camera 53 can also use an intelligent camera based on deep learning algorithms to run lightweight defect segmentation models such as TFDS-YOLOv8n. These cameras, through trained convolutional neural networks, can perform pixel-level real-time identification and segmentation of defects such as bruises, blood spots, residual scales, or irregular cuts on the surface of the fish fillet, and output the detection results in the form of coordinates and masks. The data collected by the detection head 52 and camera 53 are aggregated to the control system. The system integrates information such as the freshness, volume, and morphological integrity of the fish fillets to determine whether the fish fillets meet the mixing process standards. It also links the subsequent feeding component 6 to perform precise feeding or diversion and rejection, realizing fully automated closed-loop control from raw material quality detection to material sorting.

[0039] like Figure 5 and Figure 8As shown, in one embodiment, the feeding assembly 6 includes a sorting box 61 and a collecting conveyor belt 62. The sorting box 61 covers the conveying channels, and a collecting gap is provided between adjacent conveying channels. The collecting conveyor belt 62 is located below the collecting gap. Multiple pusher nozzles 63 are spaced apart at positions corresponding to each conveying channel within the sorting box 61. The pusher nozzles 63 are used to push fish fillets from the conveying channels onto the collecting conveyor belt 62. Adjacent collecting conveyor belts 62 run in opposite directions. A collecting hopper 64 is fitted at the end of each collecting conveyor belt 62, and the collecting hopper 64 is located above the mixing tank 1. The feeding assembly 6, through the multiple pusher nozzles 63 spaced apart corresponding to each conveying channel within the sorting box 61, can accurately sort the fish fillets according to the identification results of the detection assembly 5. When the detection determines that a fish fillet meets a specific specification or quality grade, the corresponding nozzle is activated, blowing the fish fillet from the conveying channel onto the collecting conveyor belt 62 below. The collection hoppers 64 at the end of each collection conveyor belt 62 are located above the mixing tank 1, ensuring that the sorted fish fillets can fall directly into the mixing device, thus completing the closed loop of the entire process from detection and identification, automatic diversion to precise feeding, which not only improves production efficiency, but also avoids the risk of pollution and mixing that may be caused by manual intervention.

[0040] The design of the adjacent collection conveyor belts 62 running in opposite directions facilitates the reservation of installation positions for the mixing tank 1. At the same time, it also allows fish fillets falling from different channels to be transported to both sides separately, realizing classified collection based on quality grade or subsequent use.

[0041] like Figure 5 As shown, the feeding assembly 6 further includes a return head 65, which is connected to and covers the end of the conveying channel. Each conveying channel end is rotatably equipped with a brush wheel 66. A return slide 67 is connected to the bottom of the return head 65, and the brush wheel 66 extends above the return slide 67. The return head 65 and its bottom return slide 67 added to the feeding assembly 6 provide an automatic recovery channel for fish fillets not selected by the pusher nozzle 63. During rotation, the brush wheel 66 at the end of the conveying channel gently sweeps residual or unsorted fish fillets into the return slide 67, preventing material accumulation or jamming. The return slide 67 can guide these fish fillets back to the front of the feeding and sorting mechanism or collect them separately, realizing the automatic return and reprocessing of unqualified materials, reducing the trouble of manual picking and material waste, and further improving the automation and continuity of the entire feeding and sorting process.

[0042] like Figure 5 and Figure 9As shown, the feeding and sorting mechanism further includes a return conveyor belt 68 and a return lifting belt 69. One end of the return conveyor belt 68 is mounted on the bottom of the return chute 67 via a first interface 681, and the other end of the return conveyor belt 68 is connected to the bottom of the return lifting belt 69 via a second interface 682. The top of the return lifting belt 69 extends and is mounted on the sorting rack 42. By adding the return conveyor belt 68 and the return lifting belt 69, the feeding and sorting mechanism constructs a complete automatic material circulation loop. The fish fillets collected by the return chute 67 fall onto the return conveyor belt 68, are horizontally conveyed, and then transferred to the return lifting belt 69. The return lifting belt 69 then lifts them upward and re-places them onto the sorting rack 42, realizing the automatic return of fish fillets that do not meet the standards or need to be reprocessed. This closed-loop reflux design automatically returns materials to the sorting starting point for secondary inspection and diversion without manual intervention. This effectively avoids material accumulation and waste, ensures continuous and stable operation of the production line, and further improves overall operational efficiency and automation level.

[0043] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0044] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. A fish fillet mixing and stirring device, characterized in that, include: A mixing tank, wherein an inner cylinder is rotatably fitted inside the mixing tank, and the bottom of the inner cylinder is provided with multiple buffer flanges along the circumferential direction, and a heating structure is provided around the outer wall of the inner cylinder; A stirring mechanism is mounted on the mixing tank. The stirring mechanism includes a stirring shaft that extends into the inner cylinder and is rotatably arranged. A stirring frame is rotatably sleeved on the stirring shaft. The stirring frame is fixedly connected to the inner wall of the inner cylinder and rotates synchronously with the inner cylinder. A scraper is installed on the outer side of the stirring frame. Several paddle sleeves are installed at intervals on the upper and lower parts of the stirring shaft. Both the scraper and the paddle sleeves are provided with a soft outer layer that abuts against the fish fillets.

2. The fish fillet mixing and stirring device according to claim 1, characterized in that, The mixing tank includes an outer cylinder, a first mounting base, and a second mounting base. The first mounting base and the second mounting base are respectively mounted on the top and bottom of the outer cylinder. A first driving component is mounted on the first mounting base, and the output end of the first driving component is connected to the stirring shaft. A second driving component is mounted on the second mounting base, and a turntable is sleeved on the output end of the second driving component. The turntable extends to be fixedly connected to the bottom of the inner cylinder.

3. The fish fillet mixing and stirring device according to claim 2, characterized in that, A gap cavity is formed between the outer cylinder and the inner cylinder, and the heating structure is installed in the gap cavity. The heating structure includes a heating pipe spirally wound around the outer wall surface of the inner cylinder.

4. The fish fillet mixing and stirring device according to claim 1, characterized in that, The inner wall of the inner cylinder is provided with several buffer grooves along the circumference. The buffer grooves are connected to the buffer flanges by pins. The buffer flanges are provided with buffer surfaces. The buffer surfaces form an obtuse angle with the inner wall of the inner cylinder. A buffer mechanism is provided between the buffer flanges and the buffer grooves.

5. The fish fillet mixing and stirring device according to claim 2, characterized in that, The stirring frame includes a first frame and a second frame that are sequentially rotated and sleeved on the stirring shaft. The first frame has arms that are fixedly connected to the inner cylinder on both sides. Each arm is equipped with a first blade, which is arranged facing each other. Each arm is also equipped with a scraper, which is arranged in opposite directions. The surfaces of the first blades and the scrapers are provided with the soft outer layer. The second frame is fixedly connected to the two arms on both sides. The second frame has a notch for the turntable to extend.

6. The fish fillet mixing and stirring device according to claim 5, characterized in that, The stirring shaft includes a transmission body and a shaft body. One end of the transmission body is connected to the first driving component. The first frame is rotatably sleeved on the outer periphery of the transmission body. The other end of the transmission body is fixedly connected to the shaft body through a connecting shaft joint. The second frame is rotatably sleeved on the outer periphery of the shaft body. Several paddle sleeves are fixedly sleeved on the shaft body at intervals. The paddle sleeves are provided with multiple second blades in the circumferential direction. The surface of the second blades is also provided with the soft outer layer.

7. The fish fillet mixing and stirring device according to claim 1, characterized in that, It also includes a feeding and sorting mechanism, which includes a feeding component, a batching component, a detection component, and a discharging component located above the mixing cylinder, all connected sequentially along the fish fillet conveying direction.

8. The fish fillet mixing and stirring device according to claim 7, characterized in that, The feeding assembly includes a feeding rack, a feeding platform, and a feeding head. The feeding rack is equipped with a hopper, and a transition chain plate is provided between the hopper and the feeding platform. The feeding platform is equipped with multiple feeding tracks, and a material-separating column protrudes from the gap between adjacent feeding tracks. An arc-shaped guide bar is connected to the end of the feeding track. The feeding head is connected to the feeding platform and located below the arc-shaped guide bar. A docking hopper is fixedly provided at the bottom of the feeding head.

9. The fish fillet mixing and stirring device according to claim 8, characterized in that, The batching component is equipped with a conveyor chain, and a conveyor belt runs through between the detection component and the unloading component. The conveyor chain and the conveyor belt are connected and cooperate to form a conveying channel for conveying fish fillets. The batching component includes a sorting rack located below the docking hopper. Multiple lifting chains are spaced apart in the sorting rack, and multiple trays for supporting fish fillets are spaced apart on the lifting chains. Each lifting chain is connected to one of the conveying channels.

10. The fish fillet mixing and stirring device according to claim 9, characterized in that, The detection assembly is equipped with a detection beam located above the conveying channel. A detection head and a camera are installed on the detection beam at positions corresponding to each of the conveying channels. The detection head is mounted on the detection beam via a first base, and the camera is slidably mounted on the detection beam via a second base. The camera can be raised and lowered relative to the conveying channel. An arc-shaped groove is provided on the first base, and the detection head can move along the trajectory of the arc-shaped groove relative to the conveying channel.

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