An automatic initial processing device for sea bass

Abstract

The application provides a sea bass automatic primary processing equipment, which comprises a scale removing unit, a turnover unit and an abdominal cavity breaking and internal organ removing unit. The sea bass automatic primary processing equipment is optimized according to the shape of the sea bass, perfectly adapts to the biological characteristics of the sea bass, can realize automatic and continuous operation of rapid scale removing, accurate abdominal cavity breaking and internal organ removing of the sea bass, and the processing efficiency is more than 6 times of manual operation, so that the core problem of low processing efficiency and high labor cost of manual operation is solved.

Description

Technical Field

[0001] This invention relates to the field of fish processing equipment technology, specifically to an automatic primary processing equipment for sea bass. Background Technology

[0002] With the popularization of healthy eating concepts among Chinese residents, sea bass, with its high protein, low fat, and few intramuscular bones, has become a mainstream aquatic product in China. In 2025, the total national sea bass production exceeded 888,000 tons, and the average annual growth rate of market consumption has remained stable at 12%-15% over the past five years. Primary processing of aquatic products is a core link between aquaculture and consumption. However, currently, the primary processing of sea bass in my country still relies heavily on manual labor. Core processes such as scaling, gutting, and eviscerating are all completed manually in stages. This not only results in low production efficiency, poor consistency in product processing precision and hygiene standards, and difficulty in food quality control, but also faces the dilemma of continuously rising labor costs and a widening shortage of skilled workers. It has become a core bottleneck restricting the transformation and upgrading of the sea bass processing industry.

[0003] Currently, there are significant shortcomings in the industry's automated processing equipment: imported large-scale aquatic product processing production lines cost millions of yuan to purchase, have high operation and maintenance costs, and are mainly designed for large marine fish, making them poorly suited to the spindle-shaped body and medium-hardness scales of sea bass; existing general-purpose fish primary processing equipment in China has not been specifically optimized for the physiological characteristics of sea bass, and generally suffers from problems such as incomplete scaling, uncontrollable depth of gutting, and high fish meat loss, failing to meet the standardized processing requirements of sea bass; at the same time, existing equipment is bulky and occupies a large area, making it completely unsuitable for the site and financial conditions of the more than 90% of small and medium-sized processing entities in the industry. The industry urgently needs a miniaturized, low-cost, and highly adaptable automated primary processing equipment specifically for sea bass. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose an automatic primary processing device for sea bass, thereby solving the technical problem of the lack of dedicated processing equipment for sea bass in the prior art.

[0005] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This invention provides an automatic primary processing device for sea bass, comprising: a descaling unit, a flipping unit, and a gutting unit. The descaling unit includes a roller module and a drive module. The roller module includes multiple pairs of alternating descaling rollers and power rollers. The axes of the descaling rollers and power rollers are horizontal. Each pair of descaling rollers and each pair of power rollers are arranged parallel to each other along the height direction. A channel is formed between each pair of descaling rollers and between each pair of power rollers for a horizontally positioned sea bass to pass through. The outer surface of the descaling rollers forms different angles relative to the horizontal plane to descale different parts of the sea bass. The drive module is connected to each pair of descaling rollers and power rollers to drive the descaling rollers and power rollers to rotate, and the rotation speed of the descaling rollers is greater than the rotation speed of the power rollers. The flipping unit includes a conveying module and a flipping module. The conveying module includes a supporting conveyor belt and an auxiliary conveyor belt, which are arranged side by side. The flipping module is connected to the supporting conveyor belt and the auxiliary conveyor belt respectively, so that it can switch between a supporting state and a flipping state. When the supporting conveyor belt is in the supporting state, its feed end corresponds to the discharge end of the roller module to receive the scaled sea bass. When the supporting conveyor belt is in the flipping state, it cooperates with the auxiliary conveyor belt to hold the sea bass in a vertical position. The gutting and eviscerating unit is located at the end of the flipping unit and includes a gutting module and an eviscerating module arranged sequentially along the direction of the bass's movement.

[0006] In some embodiments, the descaling roller has a funnel-shaped structure with spikes for descaling evenly distributed on its outer surface; along the direction of the sea bass's movement, the angle of inclination of the outer surface of the descaling roller relative to the horizontal plane gradually increases.

[0007] In some embodiments, the automatic primary processing equipment for sea bass further includes a frame, on which the descaling unit, the flipping unit, and the gutting unit are all mounted; the roller module further includes a first slide rod, a first slider, and a first spring, wherein the first slide rod is arranged vertically and fixedly connected to the frame, the two ends of the descaling roller and the power roller are respectively rotatably connected to the first slider, the first slider is slidably connected to the first slide rod, and the first spring is sleeved on the first slide rod and connects the first slider and the frame.

[0008] In some embodiments, the drive module includes a first drive motor, a first transmission device, and a universal coupling. One end of each descaling roller and power roller is connected to the universal coupling, and the first drive motor is connected to each of the universal couplings through the first transmission device.

[0009] In some embodiments, the first transmission device includes an upper transmission part, a lower transmission part, and an intermediate transmission part. The upper transmission part is connected to the universal coupling of the upper descaling roller and the power roller in each pair of descaling rollers and each pair of power rollers, respectively. The lower transmission part is connected to the universal coupling of the lower descaling roller and the power roller in each pair of descaling rollers and each pair of power rollers. The intermediate transmission unit includes an upper transmission wheel, a lower transmission wheel, an auxiliary wheel, a tensioning wheel, and a transmission belt. The first drive motor is connected to the upper transmission wheel, the upper transmission wheel is connected to the upper half of the transmission unit, and the lower transmission wheel is connected to the lower half of the transmission unit. The height of at least one of the upper and lower transmission wheels is adjustable. The auxiliary wheel is fixedly connected to the frame, and the tensioning wheel is movably connected to the frame for tensioning the transmission belt sleeved on the upper transmission wheel, the lower transmission wheel, the auxiliary wheel, and the tensioning wheel.

[0010] In some embodiments, the flipping module includes a second motor, a cam, a balance wheel, and a second transmission device. The second motor is connected to the cam, the cam abuts against the balance wheel, and the balance wheel is connected to the supporting conveyor belt and an auxiliary conveyor belt respectively through the second transmission device, so that the time for the supporting conveyor belt to switch from the supporting state to the flipping state is longer than the time for switching from the flipping state to the supporting state.

[0011] In some embodiments, the gutting module includes a third motor, a gutting blade, and a limiting buckle. The limiting buckle is matched to the shape of the sea bass's abdomen and is located on the side of the gutting blade near the flipping unit. The third motor is connected to the gutting blade to drive the gutting blade to rotate and cut open the abdomen located below the sea bass.

[0012] In some embodiments, the evisceration unit further includes an adaptive base, which includes a second slide rod, a second slider, and a second spring. The second slide rod is arranged vertically and fixedly connected to the frame. The second slider is slidably connected to the second slide rod. The second spring is sleeved on the second slide rod and connects the second slider and the frame. The evisceration module is disposed on the second slider.

[0013] In some embodiments, the evisceration module includes an expander, an eviscerator, and a fourth motor. The expander is arranged on the side of the eviscerator close to the abdominal dissection module. The width of the expander gradually increases along the direction of the bass's movement, and it can be inserted into the bass's abdomen to open it up. The fourth motor is connected to the eviscerator, and the upper end of the eviscerator can be inserted into the bass's abdomen to remove the viscera.

[0014] In some embodiments, the gutting and eviscerating unit further includes a traveling module, which includes two traveling conveyor belts and elastic devices. The two traveling conveyor belts are arranged at intervals on both sides of the gutting and eviscerating module. The two traveling conveyor belts are elastically connected to the frame through the two elastic devices, so that the two traveling conveyor belts clamp the sea bass and drive the sea bass through the gutting and eviscerating module in sequence.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The automatic primary processing equipment for sea bass provided by this invention is specifically optimized according to the shape of sea bass, perfectly adapting to the biological characteristics of sea bass. It can realize automated continuous operation of rapid scaling, precise gutting, and removal of internal organs of sea bass. The processing efficiency is more than 6 times that of skilled manual operation, solving the core problems of low efficiency and high labor costs of manual processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the automatic primary processing equipment for sea bass provided in an embodiment of the present invention; Figure 2 yes Figure 1 Schematic diagram of the descaling unit; Figure 3 yes Figure 1 A schematic diagram of the structure of the inverting unit; Figure 4 yes Figure 1 A schematic diagram of the laparotomy and viscera removal unit; Figure 5 yes Figure 2 Top view of the middle roller module; Figure 6 yes Figure 2 A schematic diagram of the structure of the driver module; Figure 7 yes Figure 6 Schematic diagram of the intermediate transmission section; Figure 8 This is a side view of the flip unit in the supported state; Figure 9 This is a side view of the flip unit when it is in the flipped state; Figure 10 yes Figure 4 A partial structural diagram of the laparotomy and viscera removal unit; Figure 11 yes Figure 4 A schematic diagram of the structure of the travel module. 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0018] To address the current technical problem of the lack of specialized processing equipment for sea bass, this invention provides an automated primary processing device for sea bass that is perfectly adapted to the biological characteristics of sea bass, enabling automated and continuous operations for rapid scaling, precise gutting, and removal of internal organs.

[0019] Please see Figure 1 , Figure 1 This is a schematic diagram of the automatic primary processing equipment for sea bass provided in an embodiment of the present invention; the automatic primary processing equipment for sea bass includes a descaling unit 1, a flipping unit 2, and a gutting and eviscerating unit 3 arranged sequentially along the sea bass's travel route.

[0020] See details Figure 2 , Figure 2 yes Figure 1 A schematic diagram of the descaling unit 1 is shown. The descaling unit 1 includes a roller module 11 and a drive module 12. The roller module 11 includes multiple pairs of alternately arranged descaling rollers 111 and drive rollers 112. Each pair of descaling rollers 111 and drive rollers 112 consists of two rollers, and the axes of each descaling roller 111 and drive roller 12 are parallel to each other and horizontal. The two descaling rollers 111 belonging to the same pair and the two drive rollers 112 belonging to the same pair are arranged parallel to each other in the height direction, so that a channel is formed between each pair of descaling rollers 111 and each pair of drive rollers 112 for the sea bass in a horizontal position to pass through. This horizontal position refers to the sea bass lying flat with its head facing the direction of travel and its belly and back facing the sides.

[0021] The outer surface of the descaling roller 111 forms different angles relative to the horizontal plane to adapt to the biological characteristics of the sea bass, removing scales from different parts of the sea bass. The drive module 12 is connected to each pair of descaling rollers 111 and power rollers 112 to drive the descaling rollers 111 and power rollers 112 to rotate in the same direction. Furthermore, the rotational speed of the descaling rollers 111 is greater than the rotational speed of the power rollers 112, creating a speed difference. The power rollers 112 propel the sea bass at a slower speed, while the descaling rollers 111 rotate at a faster speed, rotating relative to the sea bass to remove scales.

[0022] See Figure 3 , Figure 3 yes Figure 1A schematic diagram of the structure of the flipping unit 2. The flipping unit 2 includes a conveying module 21 and a flipping module 22. The conveying module 21 includes a supporting conveyor belt 211 and an auxiliary conveyor belt 212, which are arranged side by side. The flipping module 22 is connected to both the supporting conveyor belt 211 and the auxiliary conveyor belt 212 to switch between a supporting state and a flipping state. When the supporting conveyor belt 211 is in the supporting state, its feed end corresponds to the discharge end of the roller module 11 to receive the scaled sea bass. When the supporting conveyor belt 211 is in the flipping state, it cooperates with the auxiliary conveyor belt 212 to hold the sea bass in a vertical position. Here, the vertical position means that the fish head faces the direction of travel, the belly faces down, and the back faces up.

[0023] See Figure 4 , Figure 4 yes Figure 1 A schematic diagram of the evisceration and gutting unit 3. The evisceration and gutting unit 3 is located at the end of the flipping unit 2 and includes an evisceration module 31 and a gutting module 32 arranged sequentially along the direction of the sea bass's movement. The evisceration module 31 is used to open the fish's abdomen, and the gutting module 32 is used to remove the sea bass's internal organs.

[0024] Some automated primary processing equipment for sea bass also includes a frame 4, which is composed of several rods, plates, and other structural elements, forming the skeleton structure of the equipment. The various components of the descaling unit 1, the flipping unit 2, and the gutting unit 3 can be installed on the frame 4 using bolts, pins, welding, or other methods as needed. The frame 4 is a conventional structure for mechanical equipment, well-known to those skilled in the art and capable of being flexibly adjusted according to actual needs; therefore, it will not be described in detail. It should be noted that, to clearly demonstrate the structure of the various functional components of this equipment, part of the frame 4 structure is hidden in the attached drawings.

[0025] Please see Figure 2 and Figure 5 , Figure 5 yes Figure 2 A top view of the middle roller module 11. In some embodiments, the descaling roller 111 has a funnel-shaped structure, meaning that the outer diameter is largest at both ends and smallest in the middle, gradually decreasing from both ends to the middle. The outer surface of the descaling roller 111 is evenly distributed with sharp points for descaling. Furthermore, along the direction of the sea bass's movement, the angle of inclination of the outer surface of the descaling roller 111 relative to the horizontal plane gradually increases.

[0026] In this embodiment, the first descaling roller 111a has an inclination angle of 0°, meaning it is a cylindrical structure. The second descaling roller 111b has an inclination angle of 20°, and the third descaling roller 111c has an inclination angle of 40°. The first descaling roller 111a is used for preliminary descaling of the sides of the sea bass, directly removing softer, larger scales and those on the widest part of the fish. The second descaling roller 111b descals the spindle-shaped sides of the sea bass; its sharper spikes allow for better descaling even small, hard scales. The third descaling roller 111c removes scales near the back and belly of the sea bass and cleans any remaining scales on the sides, ensuring a good descaling effect through three descaling processes.

[0027] To accommodate slight differences in the body size of different sea bass, in some embodiments, the roller module 11 further includes a first slide bar 113, a first slider 114, and a first spring 115. The first slide bar 113 is arranged vertically and fixedly connected to the frame 4. The first slider 114 is rotatably connected to both ends of the descaling roller 111 and the power roller 112, and can be connected by bearings to reduce rotational friction. The first slider 114 is slidably connected to the first slide bar 113, and the first spring 115 is sleeved on the first slide bar 113 and connects the first slider 114 and the frame 4. The first spring 115 is used to apply elastic force to the first slider 114 so that the descaling roller 111 and the power roller 112 exert appropriate pressure on the sea bass. In this embodiment, the two first sliders 114 connected to the same end of each pair of descaling rollers 111 or power rollers 112 are mounted on the same first slide bar 113. When sea bass of different sizes pass through the descaling roller 111 and the power roller 112, the descaling roller 111 and the power roller 112 open to both sides due to pressure, and the vertical distance increases to meet the height requirements for the fish to pass through. Meanwhile, the first slider 114 is subjected to the reaction force of the compression of the first spring 115, which offsets part of the expansion effect. Thus, the fish can pass through the descaling roller 111 and the power roller 112, and the fish can also be kept close to the descaling roller 111 and the power roller 112 to ensure the descaling effect.

[0028] In a preferred embodiment, a first adjusting member 116 may also be provided on the first slide rod 113. The first adjusting member 116 can move along the first slide rod 113 to adjust its position and then be fixed. For example, the first adjusting member 116 can be threadedly connected to the first slide rod 113, and adjustment can be made by turning the first adjusting member 116. The first spring 115 connects the first slider 114 and the first adjusting member 116. The compression of the first spring 115 is adjusted by the first adjusting member 16, so that the pressure applied to the sea bass by the descaling roller 111 and the power roller 112 is appropriate.

[0029] In some embodiments, the drive module 12 includes a first drive motor 121, a first transmission device 122, and a universal coupling 123. One end of each descaling roller 111 and power roller 112 is connected to the universal coupling 123 to accommodate height changes in the descaling roller 111 and power roller 112. The first drive motor 11 is connected to each universal coupling 123 via the first transmission device 122, enabling differential rotation of the descaling roller 111 and power roller 112 through the transmission of the first transmission device 122. The first transmission device 122 can employ a gear mechanism, a pulley mechanism, or a combination of both to achieve the desired transmission function.

[0030] Please see Figure 6 and Figure 7 , Figure 6 yes Figure 2 A schematic diagram of the structure of the drive module 12; Figure 7 yes Figure 6 A schematic diagram of the intermediate transmission unit 1223.

[0031] Based on the above embodiments, the first transmission device 122 includes an upper transmission section 1221, a lower transmission section 1222, and an intermediate transmission section 1223. The upper transmission section 1221 connects to the universal couplings 123 of the upper descaling roller 111 and the upper power roller 112 in each pair of descaling rollers 111 and each pair of power rollers 112, respectively. The lower transmission section 1222 connects to the universal couplings 123 of the lower descaling roller 111 and the lower power roller 112 in each pair of descaling rollers 111 and each pair of power rollers 112, respectively. The upper transmission section 1221 and the lower transmission section 1222 can adopt the same structure, but through a pair of gears reversing the direction, the upper and lower descaling rollers 111 and the upper and lower power rollers 112 rotate in opposite directions at the same speed.

[0032] The intermediate transmission unit 1223 includes an upper transmission wheel 12231, a lower transmission wheel 12232, an auxiliary wheel 12233, a tensioning wheel 12234, and a transmission belt 12235. A first drive motor 121 is connected to the upper transmission wheel 12231; in this embodiment, this connection is achieved through a set of gears. The upper transmission wheel 12231 is connected to the upper half of the transmission unit 1221, and the lower transmission wheel 12232 is connected to the lower half of the transmission unit 1222 via a reversing gear set 12236 to achieve the aforementioned synchronous reverse rotation. The height of at least one of the upper transmission wheel 12231 and the lower transmission wheel 12232 is adjustable, for example, by tightening the connecting bolt of the upper transmission wheel 12231. It is readily understood that the heights of the connected upper half of the transmission unit 1221 and the lower half of the transmission unit 1222 are also adjusted accordingly.

[0033] The auxiliary wheel 12233 is fixedly connected to the frame 4, and the tensioning wheel 12234 is movably connected to the frame 4, for example, in this embodiment, it is fixed by means of a sliding groove and screwing in bolts. The movable tensioning wheel 12234 is used to tension the transmission belt 12235 sleeved on the upper transmission wheel 12231, the lower transmission wheel 12232, the auxiliary wheel 12233, and the tensioning wheel 12234.

[0034] The first slide bar 113, the first slider 114, and the first spring 115 can only accommodate small size fluctuations. For larger size changes, the distance between the upper and lower descaling rollers 111 and the power roller 112 can be changed by adjusting the height of the upper half of the transmission unit 1221 and the lower half of the transmission unit 1222. In actual operation, the sea bass are first divided into multiple grades according to size or weight, and the distance between the upper half of the transmission unit 1221 and the lower half of the transmission unit 1222 is adjusted to match the size of the sea bass in that grade. Then, the first slider 114 and the first spring 115 are used to adapt to small-range size changes within the grade. After all the sea bass in the same grade have been processed, the distance is adjusted to process the sea bass in the next grade.

[0035] Please see Figure 3 , Figure 8 and Figure 9 , Figure 8 This is a side view of the flipping unit 2 in the supporting state; Figure 9 This is a side view of the flipping unit 2 when it is in the flipped state.

[0036] The supporting conveyor belt 211 and the auxiliary conveyor belt 212 can employ a common pulley mechanism, using a motor to drive the driving pulley to rotate, which in turn works with the driven pulley to achieve the movement of the belt. This pulley mechanism is a conventional structure well-known to those skilled in the art, and therefore will not be described in detail.

[0037] After being scaled in descaling unit 1, the sea bass is pushed out onto the support conveyor belt 211, which is then in operation. Figure 8 The image shows the supporting state. Once the photoelectric sensor or other sensors detect that the bass has been placed onto the supporting conveyor belt 211, the flipping module 22 moves the supporting conveyor belt 211 towards the auxiliary conveyor belt 212, while the auxiliary conveyor belt 212 moves downwards. This causes the bass to rotate and slide towards the auxiliary conveyor belt 212 until it is in contact with it. The two work together to clamp the bass, preventing it from tipping over. Simultaneously, the supporting conveyor belt 211 and the auxiliary conveyor belt 212 also move the bass towards the gutting and eviscerating unit 3.

[0038] Based on the above embodiment, the flipping module 22 includes a second motor 221, a cam 222, a swing wheel 223, and a second transmission device 224. The second motor 221 is connected to the cam 222, driving the cam 222 to rotate. The cam 222 abuts against the swing wheel 223, and the swing wheel 223 can be kept in contact with the cam 222 by elastic elements such as torsion springs and rubber bands. The swing wheel 223 is connected to the supporting conveyor belt 211 and the auxiliary conveyor belt 212 respectively through the second transmission device 224. Furthermore, the time for the supporting conveyor belt 211 to switch from the supporting state to the flipping state is longer than the time for switching from the flipping state to the supporting state. That is, the push stroke time is longer than the return stroke time.

[0039] To ensure smooth operation of the flipping unit 2, the profile curve of cam 222 is designed according to the sinusoidal acceleration motion law of the balance wheel 223. During the push stroke, the sea bass is flipped and transported, which takes a relatively long time; therefore, the motion angle of cam 222 is relatively large to ensure the fish can be transported successfully. The return stroke restores the initial state to an unloaded state, achieved during the return stroke of cam 222, which has a smaller angle and shorter motion time.

[0040] In some embodiments, the cam 222 has a push stroke angle of 100°, a far rest angle of 80°, a return stroke angle of 60°, and a near rest angle of 120°.

[0041] In some embodiments, the second transmission device 224 includes a first connecting plate 2241, a first connecting rod 2242, a second connecting plate 2243, a second connecting rod 2244, a third connecting rod 2245, a fourth connecting rod 2246, a fifth connecting rod 2247, a sixth connecting rod 2248, and a third connecting plate 2249.

[0042] The balance wheel 223 is rotatably connected to the center of the first connecting plate 2241. The first connecting plate 2241 has two symmetrically arranged rotatable connection points about the center. One end of the first connecting rod 2242 is rotatably connected to the lower rotatable connection point, and the other end is rotatably connected to the second connecting plate 2243. The second connecting plate 2243 is movably connected to a vertically arranged slide rail on the frame 4. The auxiliary conveyor belt 212 is fixedly mounted on the second connecting plate 2243. One end of the second connecting rod 2244 is rotatably connected to the upper rotatable connection point, and the other end is rotatably connected to one end of the third connecting rod 2245. The other end of the third connecting rod 2245 is rotatably connected to the frame 4. One end of the fourth connecting rod 2246 is rotatably connected to the middle of the third connecting rod 2245, and the other end is rotatably connected to the middle of the fifth connecting rod 2247. One end of the fifth connecting rod 2247 is rotatably connected to the frame 4, and the other end is rotatably connected to the third connecting plate 2249. One end of the sixth link 2248 is rotatably connected to the frame 4, and the other end is rotatably connected to the third link 2249. The supporting conveyor belt 211 is fixedly mounted on the third link 2249. Through this second transmission device 224, the supporting conveyor belt 211 and the auxiliary conveyor belt 212 can be switched between the supporting state and the flipping state.

[0043] Please see Figure 4 and Figure 10 , Figure 10 yes Figure 4 A partial structural diagram of the abdominal dissection and visceration unit 3. In some embodiments, the abdominal dissection module 31 includes a third motor 311, a dissection blade 312, and a limiting buckle 313. The limiting buckle 313 matches the shape of the sea bass's abdomen and is positioned on the side of the dissection blade 312 near the flipping unit 2. The limiting buckle 313 consists of two symmetrically arranged buckles, forming a gap between the two for the dissection blade 312 to pass through. The third motor 311 is connected to the dissection blade 312 to drive the dissection blade 312 to rotate and cut open the abdomen located below the sea bass.

[0044] Based on the above embodiments, the evisceration unit 3 further includes an adaptive base 33. The adaptive base 33 includes a second slide bar 331, a second slider 332, and a second spring 333. The structure of the adaptive base 33 is similar to that of the first slide bar 113, the first slider 114, and the first spring 115 in the roller module 11. The second slide bar 331 is arranged vertically and fixedly connected to the frame 4. The second slider 332 is slidably connected to the second slide bar 331. The second spring 333 is sleeved on the second slide bar 331 and connects the second slider 332 and the frame 4. The evisceration module 31 is disposed on the second slider 332.

[0045] When the sea bass is transported to the gutting unit 3, the limiting buckle 313 will press against the boundary of the sea bass along the shape of the fish. As the fish continues to move forward, the limiting buckle 313 will move down along the streamline shape of the sea bass, compressing the second spring 333 and moving the gutting blade 312 down together, thereby cutting open the belly of the fish along the lines of the fish, avoiding the gutting blade 312 from cutting too deep and damaging the internal organs, especially the gallbladder.

[0046] In some embodiments, the evisceration module 32 includes an expander 321, an eviscerator 322, and a fourth motor 323. The expander 321 is arranged on the side of the eviscerator 322 near the abdominal dissection module 31. The expander 321 gradually increases in width along the direction of the bass's movement, and can be inserted into the bass's abdomen to open it. The fourth motor 323 is connected to the eviscerator 322. The upper end of the eviscerator 322 can be inserted into the bass's abdomen, and the eviscerator is removed under the drive of the fourth motor 323. A chute 324 and a collection container can also be provided below the eviscerator 322 to collect the bass's eviscerator. A collection box 325 can also be provided behind the eviscerator 322 to collect the processed bass.

[0047] Please see Figure 11 , Figure 11 yes Figure 4 A schematic diagram of the structure of the middle travel module 34.

[0048] In some embodiments, the gutting and eviscerating unit 3 further includes a traveling module 34, which includes two traveling conveyor belts 341 and elastic devices 342. The two traveling conveyor belts 341 are arranged at intervals on both sides of the gutting and eviscerating module 32. The two traveling conveyor belts 341 are elastically connected to the frame 4 through the two elastic devices 342, so that the two traveling conveyor belts 341 clamp the sea bass and drive the sea bass through the gutting and eviscerating module 31 and the eviscerating module 32 in sequence.

[0049] The conveyor belt 341 can be a motor-driven, gear-driven, or pulley-driven conveyor belt mechanism as described above. The elastic device 342 can be a mechanism similar to the adaptive base 33, consisting of a slide bar, a slider, and a spring, except that the direction of the slide bar is changed from vertical to horizontal. The structure and working principle have been described in detail above, so the conveyor belt 341 and the elastic device 342 will not be described again here.

[0050] In addition, this automatic primary processing equipment for sea bass is equipped with a rinsing water pipe for rinsing the sea bass during scaling and evisceration. Clearly, the bottom of this automatic primary processing equipment also features a drainage structure and anti-clogging measures. Furthermore, all electrical components within the equipment have undergone necessary waterproofing and insulation treatment.

[0051] This automatic primary processing equipment for sea bass has the following advantages: (1) It has complete functions, wide applicability, and high efficiency. This equipment integrates scaling, gutting, cleaning, and collection, and is suitable for the initial processing of sea bass. Furthermore, due to the similarity in shape among fish, other fish of similar size can also be processed using this machine to some extent. The machine can be disassembled into multiple modules for separate use, allowing for the completion of only certain processing steps. (2) Clear modules, low cost, and simple operation Compared to existing fish processing machinery, this product is smaller, consumes less energy, is cheaper, and is easier to operate, making it more practical and conducive to the promotion and use of bass processing machinery in the public. Users only need to feed the bass into the machine one by one, start the machine, and it will automatically perform a series of actions such as scaling, gutting, cleaning, and collecting. The operation is simple and easy to learn. (3) Strong self-adaptability and flexibility This product uses universal joint + spring, slide bar + spring and other structures in the adaptive scaling and evisceration modules to make full use of the elasticity of the springs and enhance adaptability to the body shape of the sea bass.

[0052] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. An automatic primary processing device for sea bass, characterized in that, include: The descaling unit includes a roller module and a drive module. The roller module includes multiple pairs of alternating descaling rollers and power rollers. The axes of the descaling rollers and power rollers are horizontal. Each pair of descaling rollers and each pair of power rollers are arranged parallel to each other along the height direction. A channel is formed between each pair of descaling rollers and between each pair of power rollers for a horizontally positioned sea bass to pass through. The outer surface of the descaling rollers forms different inclination angles relative to the horizontal plane to descale different parts of the sea bass. The drive module is connected to each pair of descaling rollers and power rollers to drive the descaling rollers and power rollers to rotate, and the rotation speed of the descaling rollers is greater than the rotation speed of the power rollers. The flipping unit includes a conveying module and a flipping module. The conveying module includes a supporting conveyor belt and an auxiliary conveyor belt, which are arranged side by side. The flipping module is connected to the supporting conveyor belt and the auxiliary conveyor belt respectively, so that it can switch between a supporting state and a flipping state. When the supporting conveyor belt is in the supporting state, its feed end corresponds to the discharge end of the roller module to receive the scaled sea bass. When the supporting conveyor belt is in the flipping state, it cooperates with the auxiliary conveyor belt to hold the sea bass in a vertical position. The gutting and eviscerating unit is located at the end of the flipping unit and includes a gutting module and an eviscerating module arranged sequentially along the direction of the bass's movement.

2. The automatic primary processing equipment for sea bass according to claim 1, characterized in that, The descaling roller has a funnel-shaped structure with evenly distributed spikes on its outer surface for descaling; along the direction of the sea bass's movement, the angle of inclination of the outer surface of the descaling roller relative to the horizontal plane gradually increases.

3. The automatic primary processing equipment for sea bass according to claim 1, characterized in that, The automatic primary processing equipment for sea bass also includes a frame, on which the descaling unit, the flipping unit, and the gutting unit are all mounted; the roller module also includes a first slide rod, a first slider, and a first spring. The first slide rod is arranged vertically and fixedly connected to the frame. The two ends of the descaling roller and the power roller are respectively rotatably connected to the first slider. The first slider is slidably connected to the first slide rod. The first spring is sleeved on the first slide rod and connects the first slider and the frame.

4. The automatic primary processing equipment for sea bass according to claim 3, characterized in that, The drive module includes a first drive motor, a first transmission device, and a universal coupling. One end of each descaling roller and power roller is connected to the universal coupling. The first drive motor is connected to each of the universal couplings through the first transmission device.

5. The automatic primary processing equipment for sea bass according to claim 4, characterized in that, The first transmission device includes an upper transmission part, a lower transmission part and an intermediate transmission part. The upper transmission part is connected to the universal coupling of the upper descaling roller and the power roller in each pair of descaling rollers and each pair of power rollers. The lower transmission part is connected to the universal coupling of the lower descaling roller and the power roller in each pair of descaling rollers and each pair of power rollers. The intermediate transmission unit includes an upper transmission wheel, a lower transmission wheel, an auxiliary wheel, a tensioning wheel, and a transmission belt. The first drive motor is connected to the upper transmission wheel, the upper transmission wheel is connected to the upper half of the transmission unit, and the lower transmission wheel is connected to the lower half of the transmission unit. The height of at least one of the upper and lower transmission wheels is adjustable. The auxiliary wheel is fixedly connected to the frame, and the tensioning wheel is movably connected to the frame for tensioning the transmission belt sleeved on the upper transmission wheel, the lower transmission wheel, the auxiliary wheel, and the tensioning wheel.

6. The automatic primary processing equipment for sea bass according to claim 1, characterized in that, The flipping module includes a second motor, a cam, a balance wheel, and a second transmission device. The second motor is connected to the cam, the cam abuts against the balance wheel, and the balance wheel is connected to the supporting conveyor belt and the auxiliary conveyor belt respectively through the second transmission device, so that the time for the supporting conveyor belt to switch from the supporting state to the flipping state is longer than the time for switching from the flipping state to the supporting state.

7. The automatic primary processing equipment for sea bass according to claim 1, characterized in that, The abdominal dissection module includes a third motor, an abdominal dissection blade, and a limiting buckle. The limiting buckle matches the shape of the sea bass's abdomen and is located on the side of the abdominal dissection blade near the flipping unit. The third motor is connected to the abdominal dissection blade to drive the abdominal dissection blade to rotate and cut open the abdomen located below the sea bass.

8. The automatic primary processing equipment for sea bass according to claim 7, characterized in that, The laparotomy and evisceration unit also includes an adaptive base, which includes a second slide rod, a second slider, and a second spring. The second slide rod is arranged vertically and fixedly connected to the frame. The second slider is slidably connected to the second slide rod. The second spring is sleeved on the second slide rod and connects the second slider and the frame. The laparotomy module is disposed on the second slider.

9. The automatic primary processing equipment for sea bass according to claim 1, characterized in that, The evisceration module includes an expander, an eviscerator, and a fourth motor. The expander is located on the side of the eviscerator close to the abdominal dissection module. The width of the expander gradually increases along the direction of the bass's movement, and it can be inserted into the bass's abdomen to open it up. The fourth motor is connected to the eviscerator, and the upper end of the eviscerator can be inserted into the bass's abdomen to remove the viscera.

10. The automatic primary processing equipment for sea bass according to claim 3, characterized in that, The gutting and eviscerating unit also includes a traveling module, which includes two traveling conveyor belts and elastic devices. The two traveling conveyor belts are arranged at intervals on both sides of the gutting and eviscerating module. The two traveling conveyor belts are elastically connected to the frame through the two elastic devices, so that the two traveling conveyor belts clamp the sea bass and drive the sea bass through the gutting and eviscerating module in sequence.

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