An automated continuous processing apparatus for fish

Abstract

The application discloses a kind of fish automatic continuous processing equipment, the equipment includes rack and box body being set on rack, and the inlet and outlet are respectively set in opposite sides of box body, along fish body conveying direction, box body inside is sequentially provided with self-adapting clamping and conveying unit, cutting unit, auxiliary conveying unit, fish body unfolding unit, scale removing unit and internal organs removing unit.Self-adapting clamping and conveying unit and auxiliary conveying unit are equipped with elastic pressing mechanism, and can adapt to different specifications fish body;Cutting unit is equipped with disc saw blade and roller, provides conveying force while cutting;Fish body unfolding unit is unfolded by cooperating with the pressure cone structure through the class triangular guide platform and the fish body is cut;Scale removing unit is equipped with different scraping scale teeth to realize grading scale removing;Internal organs removing unit is scraped into the cavity of bearing platform by scraping roller brush.The application realizes the integration of fish from clamping and conveying to cutting, unfolding, scale removing and internal organs removing, and has high processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of automated fish processing equipment technology, specifically to an automated continuous fish processing equipment. Background Technology

[0002] In the aquatic product processing industry, the initial processing steps of fish, such as scaling, gutting, and removing internal organs, still largely rely on manual operation. Traditional manual processing methods have prominent problems such as high labor intensity, low production efficiency, and processing quality that is highly dependent on the experience of operators. It is difficult to maintain consistent product consistency and hygiene standards, and cross-contamination is likely to occur during batch processing, making it difficult to meet the stringent requirements of standardization and safety in modern food processing.

[0003] In recent years, although some automated fish-killing equipment has emerged, existing technologies still have significant shortcomings: most equipment has a single function, only able to complete one process such as scaling or gutting, lacking the ability to integrate multiple processes, requiring the transfer of fish between multiple machines, reducing overall processing efficiency; in some integrated equipment, there is a lack of effective fish posture maintenance mechanisms between processing units, making the fish prone to deflection, tilting, or slipping during transport and processing, leading to problems such as misalignment of the gutting position and incomplete removal of internal organs; the equipment has poor adaptability to fish of different sizes, making it difficult to automatically adjust the clamping and processing gap according to the fish size, easily resulting in jamming or damage to the fish meat; in addition, the moving parts of existing equipment are mostly driven by independent motors, making the overall electrical system complex, the control logic cumbersome, and the manufacturing cost high, making it difficult to promote and apply in small and medium-sized aquatic product processing scenarios.

[0004] Therefore, developing a fully automated fish-killing device that is compact in structure, highly integrated in function, adaptable to fish of different sizes, and capable of continuous operation from clamping and conveying to gutting, unfolding, scaling, and removing internal organs has significant engineering practical value and broad market prospects. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides an automated continuous processing device for fish, which can solve the problems mentioned in the background art.

[0006] The present invention adopts the following technical solution:

[0007] An automated continuous fish processing device includes a frame and a housing mounted on the frame. The housing has an inlet and an outlet on opposite sides. Along the fish conveying direction from the inlet to the outlet, the housing contains, in sequence:

[0008] The adaptive clamping and conveying unit includes two spiral rods disposed at the inlet. The outer peripheral wall of each spiral rod is provided with spiral blades extending spirally downward along its axial direction. The bottom of the two spiral rods are respectively slidably engaged with the housing. The adaptive clamping and conveying unit also includes two elastic elements acting on the sides of the base of the two spiral rods to apply an elastic force to the two spiral rods to bring them closer together.

[0009] The two spiral rods rotate in opposite directions, and the spiral blades on the two spiral rods rotate in opposite directions. When the two spiral rods rotate, the edges of the two spiral blades form a clamping contact with the fish body from both sides, and the fish body is pushed towards the outlet and downward through the spiral conveying direction of the spiral blades.

[0010] The cutting unit includes a rotating shaft rotatably disposed inside the box and a circular saw blade fixedly installed on the rotating shaft. The axis of the rotating shaft is perpendicular to the fish conveying direction. The circular saw blade is centrally disposed between the two spiral rods and is used to cut the fish body along the length direction of the fish.

[0011] The auxiliary conveying unit includes two opposing wire brush rollers, which are slidably connected to the bottom surface of the housing. The auxiliary conveying unit also includes two elastic elements acting on both sides of the base of the two wire brush rollers to apply an elastic force to the two wire brush rollers to bring them closer together. The two wire brush rollers rotate in opposite directions, and the linear velocity between them points towards the outlet direction.

[0012] The fish body unfolding unit includes a support platform and a pressure cone structure disposed above the front part of the support platform; the front part of the support platform has a triangular guide platform for guiding the unfolding of the lower section of the fish head, and the upper end surface of the rear part of the support platform has a central ridge extending along the conveying direction, and the two sides of the central ridge respectively form support platform surfaces that extend obliquely downward.

[0013] The pressure cone structure includes a rotating shaft disposed in the box and a rotating body fixedly disposed on the rotating shaft. The rotation center plane of the rotating body is located in the same plane as the intermediate ridge, and the outer wall shape of the rotating body is adapted to the upper wall surface of the triangular guide platform. A conveying gap is formed between the pressure cone structure and the triangular guide platform for the fish body to unfold and pass through after being cut.

[0014] The descaling unit includes two descaling rollers arranged at intervals above the support platform along the fish conveying direction. Each of the two descaling rollers has scraping teeth on its outer wall, and the outer peripheral walls are respectively adapted to the contours of the two support platform surfaces. A descaling gap is formed between the outer peripheral walls of the two descaling rollers and the two support platform surfaces to allow the fish to pass through. The two descaling rollers rotate in the same direction and their linear velocity direction points towards the outlet direction.

[0015] The visceration removal unit includes a scraping roller brush rotatably disposed inside the support platform. The support platform has an opening at a corresponding position above the scraping roller brush. When the scraping roller brush rotates, it carries the viscera inside the fish's abdomen into the cavity inside the support platform through the opening.

[0016] It also includes a drive assembly for driving the rotating parts in each processing unit to rotate.

[0017] Preferably, two sets of slide rails are provided on the bottom surface of the housing, one set of slide rails is slidably connected to the bottom of the two wire brush rollers, and the other set of slide rails is slidably connected to the bottom of the two spiral rods; the two elastic elements respectively apply elastic forces to the bottom of the spiral rods and the wire brush rollers to bring them closer to the other spiral rod and the wire brush rollers.

[0018] Preferably, rollers are fixedly sleeved on both sides of the circular saw blade on the rotating shaft. The two rollers are used to support the fish body located on both sides of the circular saw blade and transport the fish body to the outlet direction when the rotating shaft rotates. The outer wall of the roller is provided with anti-slip protrusions, and the rotating outer circle of the circular saw blade protrudes from the outer circle surface of the anti-slip protrusions.

[0019] Preferably, the adaptive clamping conveying unit, the roller, and the auxiliary conveying unit are arranged sequentially along the fish conveying direction. The two spiral rods of the adaptive clamping conveying unit and the two wire brush rollers of the auxiliary conveying unit clamp and limit the fish from both sides, so that the fish body is kept in a stable posture with its belly facing down at the circular saw blade.

[0020] Preferably, the tip of the triangular guide platform structure points towards the cutting unit and is used to insert into the cut at the lower part of the fish body; a guide gap that gradually narrows along the conveying direction is formed between the pressure cone structure and the front part of the support platform; the pressure cone structure, in conjunction with the triangular guide platform structure at the bottom, unfolds the cut fish body to both sides when the fish body passes through; a descaling gap is formed between the two rollers of the descaling unit and the two support surfaces at the rear of the support platform for the fish body to pass through.

[0021] Preferably, the outer walls of the two descaling rollers are provided with a plurality of scraping teeth, and the two descaling rollers are arranged in parallel along the direction from the inlet to the outlet, and the scraping teeth on the outer walls of the two descaling rollers are of different coarseness.

[0022] The outer wall of the rotating part of the pressure cone structure is provided with tooth-shaped protrusions to increase the conveying friction.

[0023] Preferably, the scraping end of the scraping roller extends to the opening, and the bottom of the cavity inside the support is connected to an viscera collection container and / or a sewage pipe.

[0024] Preferably, the two spiral rods of the adaptive clamping conveying unit and the two wire brush rollers of the auxiliary conveying unit are driven to rotate by the same drive motor through a transmission assembly;

[0025] The transmission assembly includes a timing belt and guide pulleys. The upper ends of the two spiral rods and the upper ends of the two wire brush rollers are respectively fixed with pulleys. The timing belt is wound between each pulley and the guide pulley. The drive motor drives the two spiral rods and the two wire brush rollers to rotate synchronously via the timing belt. The guide pulley is disposed between each pulley and is used to change the direction of the timing belt so that the two spiral rods and the two wire brush rollers rotate in a preset direction.

[0026] Preferably, the transmission assembly further includes a tensioning mechanism, which includes a swing arm mounted on the frame, a tensioning wheel mounted at the end of the swing arm, and an elastic element connecting the swing arm and the frame. The tensioning wheel presses against the synchronous belt, and the elastic element applies an elastic force to the swing arm to tension the synchronous belt, thereby compensating for the slack of the synchronous belt caused by changes in the distance between the two spiral rods or between the two wire brush rollers.

[0027] Preferably, it also includes a spray device disposed inside the box body. The spray device has multiple spray ends and is respectively disposed near the inlet end and the outlet end, and is used to rinse and spray at least one of the processing units in the fish body conveying direction, namely the adaptive clamping conveying unit, the cutting unit, the auxiliary conveying unit at the front end and the descaling unit and the visceration unit at the rear end.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. Integrated continuous processing, high efficiency

[0030] This invention integrates multiple processes such as clamping and conveying, cutting, unfolding, descaling, and eviscerating into a single device. After the fish is input from the inlet, it continuously completes all the initial processing steps under the coordinated conveying of each unit. There is no need to transfer the fish between multiple devices, which greatly improves processing efficiency, reduces labor costs, and reduces the risk of contamination during the transfer process.

[0031] 2. Adaptive clamping and multi-point limiting ensure stable machining posture.

[0032] Both the adaptive clamping conveyor unit and the auxiliary conveyor unit are equipped with elastically clamping tracks, which can automatically adjust the clamping distance according to the size of the fish to adapt to different sizes of fish. When the spiral blades on the two spiral rods rotate relative to each other, they form clamping contact from both sides of the fish and propel it forward. The two spiral rods of the adaptive clamping conveyor unit, the rollers at both ends of the cutting unit, and the two wire brush rollers of the auxiliary conveyor unit together form a diamond-shaped four-point clamping limit, which keeps the fish in a stable position with its belly facing down at the circular saw blade, ensuring accurate cutting position and avoiding processing failure or damage to the fish meat caused by the fish tilting or deflecting upwards.

[0033] 3. Immediately unfold after cutting, and remove scales evenly and thoroughly according to grade.

[0034] The triangular guide platform at the front of the support works in conjunction with the pressure cone structure above to immediately unfold the fish body to both sides after cutting and maintain it in an unfolded state, preventing the fish body from obscuring the internal organs due to tissue elasticity. The outer wall of the descaling roller has multiple sections of scraping teeth of different coarseness along the axial direction to achieve graded descaling of different parts of the fish body—coarse scraping teeth work on thicker parts of the fish body, and fine scraping teeth work on thinner parts, ensuring the descaling effect while avoiding excessive scraping and damage to the fish meat. The rotating outer wall surface of the pressure cone structure has tooth-like protrusions, which provide auxiliary conveying friction when the fish body passes through, preventing the descaling resistance from causing the conveying to stop.

[0035] 4. Built-in viscera removal and single-motor synchronous drive, compact and reliable structure.

[0036] The visceration unit is built into the support platform, and the visceration is scraped and collected simultaneously at the descaling station. The visceration is scraped into the internal cavity of the support platform by the scraping end of the scraping roller. The bottom of the cavity is connected to a collection container or sewage pipe to achieve timely discharge and avoid secondary pollution. The two spiral rods of the adaptive clamping conveying unit and the two steel wire brush rollers of the auxiliary conveying unit are synchronously driven by the same drive motor through the transmission component. The four rotating bodies rotate at the same frequency and are subjected to balanced force. Compared with the multi-motor solution, it significantly reduces the number of motors and the complexity of the electrical system. With the tensioning mechanism driven by the elastic element, it automatically compensates for the change in the length of the synchronous belt and adapts to the change in the pulley spacing caused by the movement of the pressing track, ensuring stable transmission.

[0037] 5. Centralized spray cleaning to maintain a clean processing environment.

[0038] The equipment is equipped with a spray device, with spray ends located near the inlet and near the outlet. It can rinse and spray at least one of the processing units in the fish conveying direction, including the adaptive clamping conveying unit, cutting unit, auxiliary conveying unit at the front end, and the descaling unit and evisceration unit at the rear end. This promptly removes fish scales, mucus, and visceral residues attached to the surface of the fish and various parts, keeps the processing area clean, reduces the frequency of manual intervention, and is suitable for the batch production needs of small and medium-sized aquatic product processing scenarios. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the overall structure of the present invention (the top and one side panel of the box are not shown).

[0040] Figure 2 This is a top view of the overall structure of the present invention (top of the box is not shown);

[0041] Figure 3 For the present invention Figure 2 A magnified structural diagram of the structure at point A (transmission component parts are shown).

[0042] Figure 4 This is a schematic diagram of the internal structure of the present invention with the housing and frame removed (driving components of each unit are not shown).

[0043] Figure 5 For the present invention Figure 4 A side view of the structure in its current state;

[0044] Figure 6 For the present invention Figure 4 Top view of the structure in its current state;

[0045] Figure 7 For the present invention Figure 4 A front view of the structure in its current state;

[0046] Figure 8 For the present invention in Figure 4 Rear view of the structure under the current condition;

[0047] Figure 9 This is a schematic diagram of the support structure of the present invention.

[0048] Reference numerals: 1. Adaptive clamping and conveying unit; 101. Helical rod; 102. Helical blade; 103. Slide rail; 2. Auxiliary conveying unit; 201. Wire brush roller; 3. Cutting unit; 301. Rotating shaft; 302. Circular saw blade; 303. Roller; 4. Fish body unfolding unit; 401. Support platform; 402. Triangular guide platform; 403. Support platform surface; 404. Cone structure; 405. Conveying gap; 406. Opening 407. Central ridge; 5. Descaling unit; 501. Descaling roller; 502. Scaling teeth; 6. Internal visceration unit; 601. Scraping roller brush; 602. Scraping brush end; 7. Box body; 701. Inlet; 702. Outlet; 703. Spraying device; 704. Spraying end; 8. Frame; 9. Transmission assembly; 901. Synchronous belt; 902. Pulley; 903. Tensioning mechanism; 904. Guide wheel; 905. Drive motor. Detailed Implementation

[0049] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the present invention. However, the present invention can be implemented in different forms and is not limited to the embodiments described in the text. Rather, these embodiments are provided to make the disclosure of the present invention more thorough and complete.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly associated with those skilled 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 limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0051] The present invention will be further described in detail below with reference to the accompanying drawings.

[0052] The specific embodiments of the present invention are as follows:

[0053] I. Overall structure, such as Figure 1 As shown, the automated continuous fish processing equipment of the present invention includes a frame 8 and a housing 7 mounted on the frame 8. The housing 7 has a rectangular structure and is made of stainless steel plate, which has good rust resistance and easy cleaning. An inlet 701 is opened on one side of the housing 7, and an outlet 702 is opened on the other side opposite to the inlet 701. Along the conveying direction of the fish body from the inlet 701 to the outlet 702, the housing 7 is equipped with an adaptive clamping and conveying unit 1, a cutting unit 3, an auxiliary conveying unit 2, a fish body unfolding unit 4, a descaling unit 5, and a visceration unit 6 in sequence. Each unit is arranged in sequence along the horizontal direction to form a continuous processing line for the fish body from the inlet 701 to the outlet 702.

[0054] II. Adaptive clamping and conveying unit 1, such as Figure 2 As shown, the adaptive clamping and conveying unit 1 is located at the inlet 701 of the box 7, and is used to receive the fish sent in by the inlet 701 and convey the fish into the box 7.

[0055] The adaptive clamping and conveying unit 1 includes two parallel and vertically arranged spiral rods 101. The spiral rods 101 are cylindrical and positioned opposite each other, forming a clamping space between them for the fish to pass through. The bottoms of the two spiral rods 101 slide against the bottom surface of the housing 7. Each spiral rod 101 has a spiral blade 102 extending downwards along its axial direction on its outer peripheral wall. The spiral blade 102 is made of stainless steel with rounded edges to avoid scratching the fish's surface when clamping it. The spiral directions of the spiral blades 102 on the two spiral rods 101 are opposite—when viewed from above (see reference...). Figure 6 , Figure 7 One of the spiral rods 101 has a spiral blade 102 that rotates clockwise and the other rotates counterclockwise. The two spiral rods 101 rotate in opposite directions, and the spiral blades 102 on the two spiral rods 101 rotate in opposite directions. When the two spiral rods 101 rotate towards each other, the edges of the two spiral blades 102 form a clamping contact with the fish from both sides of the fish body, and the fish body is pushed towards the outlet 702 and downward through the spiral conveying direction of the spiral blades 102.

[0056] The adaptive clamping and conveying unit 1 also includes two elastic elements (elastic elements not shown) acting on the sides of the bases of the two spiral rods 101, used to apply an elastic force to the two spiral rods 101 to bring them closer together. Two sets of slide rails 103 are provided on the bottom surface of the housing 7. One set of slide rails 103 is slidably connected to the bottom of the two wire brush rollers 201, and the other set of slide rails 103 is slidably connected to the bottom of the two spiral rods 101. The two elastic elements apply an elastic force to the bottom of the spiral rods 101 and the wire brush rollers 201 to bring them closer to the other spiral rod 101 and the wire brush rollers 201. Specifically, a compression spring is provided between the base of each spiral rod 101 and the inner wall of the housing 7. One end of the compression spring abuts against the base of the spiral rod 101, and the other end abuts against the inner wall of the housing 7, or abuts against the inner wall of the partition after a partition is provided inside the housing 7. Figure 1 The diagram shows the overall unit distribution with the partition in place. The system is always in a compressed state. An elastic force is applied to the base of the spiral rod 101, causing the two spiral rods 101 to be elastically pressed together in a direction closer to each other. When fish of different sizes enter the clamping space between the two spiral rods 101, the width of the fish pushes the two spiral rods 101 outward. The base of the spiral rod 101 then slides outward and further compresses the spring. At the same time, the spring provides a reverse clamping force, so that the two spiral blades 102 always keep in contact with the surface of the fish, thereby achieving adaptive clamping of fish of different sizes.

[0057] The two helical rods 101 are driven to rotate synchronously in opposite directions by a drive assembly. That is, the two helical rods 101 rotate at the same time but in opposite directions, so that the movement direction of the opposite side of the two helical rods 101 is pointing towards the outlet 702. The rotation of the two helical rods 101 is driven by the same drive motor 905 to ensure that the rotation speed of the two helical rods 101 is completely synchronized.

[0058] III. Sectioning Unit 3, such as Figure 3 As shown, the cutting unit 3 is located downstream of the adaptive clamping and conveying unit 1 and is used to cut open the fish body conveyed by the adaptive clamping and conveying unit 1.

[0059] The cutting unit 3 includes a rotating shaft 301 rotatably disposed inside the housing 7 and a circular saw blade 302 fixedly installed on the rotating shaft 301. The rotating shaft 301 is horizontally disposed, and its axis is perpendicular to the longitudinal plane of the fish conveying direction. The two ends of the rotating shaft 301 are installed on the two side walls of the housing 7 through bearing seats. The circular saw blade 302 is centrally disposed between the two spiral rods 101 and fixedly installed in the middle position of the rotating shaft 301. It is used to cut the fish along the length of the fish. When the rotating shaft 301 rotates, the circular saw blade 302 rotates synchronously with the rotating shaft 301. Its cutting edge cuts the fish from head to tail as the fish passes by.

[0060] Rollers 303 are fixedly sleeved on both sides of the circular saw blade 302 on the rotating shaft 301. The two rollers 303 respectively support the fish located on both sides of the circular saw blade 302 and transport the fish towards the outlet 702 as the rotating shaft 301 rotates. The rollers 303 are cylindrical, and their outer walls are provided with anti-slip protrusions. These anti-slip protrusions can be knurled patterns or annular ridges spaced apart along the circumference of the rollers 303 (e.g.,...). Figure 4-6 As shown in the diagram, the roller 303 is used to increase the friction with the surface of the fish, so that the roller 303 can effectively move the fish forward when rotating. The rotation radius of the anti-slip protrusion is smaller than the cutting radius of the circular saw blade 302, so that the cutting edge of the circular saw blade 302 protrudes from the outer surface of the roller 303. When the rotating shaft 301 rotates, the roller 303 and the circular saw blade 302 rotate synchronously. The linear velocity direction of the outer surface of the roller 303 points to the direction of the outlet 702. Thus, while the circular saw blade 302 is cutting, the roller 303 supports the fish from below and provides a conveying force pointing to the direction of the outlet 702. The cutting height of the circular saw blade 302 (i.e., the height difference between the uppermost edge of the circular saw blade 302 and the uppermost edge of the roller 303) is adapted to the thickness of the fish to ensure that the circular saw blade 302 can cut the fish but will not overcut and damage the fish bones or the back of the fish.

[0061] IV. Auxiliary conveying unit 2, such as Figure 4 , Figure 6As shown, the auxiliary conveying unit 2 is located downstream of the cutting unit 3 and is used to continue to clamp and convey the fish after it has been cut, so as to ensure that the fish enters the subsequent processing station in a stable posture.

[0062] The auxiliary conveying unit 2 includes two opposing wire brush rollers 201. The wire brush rollers 201 are cylindrical and consist of a stainless steel cylinder and wire brushes arranged on the outer periphery of the cylinder. The wire brushes are densely distributed along the circumference and axial direction of the rollers, and the ends of the brushes form flexible brush surfaces. The two wire brush rollers 201 are arranged opposite each other, that is, a clamping space for the fish to pass through is formed between the brush surfaces of the two rollers. The axial direction of the wire brush rollers 201 is vertical, and their lower ends are installed on the inner bottom surface of the housing 7 through bearing seats. The bottoms of the two wire brush rollers 201 are slidably connected to the bottom surface of the housing 7.

[0063] The auxiliary conveying unit 2 also includes two elastic elements (not shown in the figure) acting on both sides of the base of the two wire brush rollers 201. These elements are used to apply an elastic force to the two wire brush rollers 201 to bring them closer together. Specifically, a compression spring is provided between the base side of each wire brush roller 201 and the inner wall of the housing 7. The compression spring is always in a compressed state and applies an elastic force to the roller base, causing the two wire brush rollers 201 to be elastically pressed together in the direction of bringing them closer together. This ensures that the brush surface of the two wire brush rollers 201 is always in contact with the surface of the fish, thus achieving adaptive clamping of fish of different sizes.

[0064] The two wire brush rollers 201 rotate in opposite directions, and the linear velocity between them points towards the outlet 702. This allows them to grip the fish while pushing it towards the outlet 702. The wire brushes brush the surface of the fish during rotation, removing the mucus and loose scales attached to the surface and thus aiding in cleaning.

[0065] V. The coordination relationship between the adaptive clamping and conveying unit 1, the cutting unit 3, and the auxiliary conveying unit 2, such as... Figure 5 , Figure 6 As shown, the two spiral rods 101 of the adaptive clamping conveying unit 1, the rollers 303 at both ends of the cutting unit 3, and the two wire brush rollers 201 of the auxiliary conveying unit 2 are arranged sequentially along the fish conveying direction. During the conveying process, the front end of the fish is clamped from both sides by the two spiral rods 101 of the adaptive clamping conveying unit 1, the middle part is supported from below by the rollers 303 at both ends of the cutting unit 3, and the rear end is clamped from both sides by the two wire brush rollers 201 of the auxiliary conveying unit 2, forming a diamond-shaped four-point limiting structure for the side of the fish.

[0066] Specifically, the two spiral rods 101 of the adaptive clamping and conveying unit 1 and the two wire brush rollers 201 of the auxiliary conveying unit 2 clamp and limit the fish body from both sides. The roller 303 provides support and conveying force below the fish body, and the circular saw blade 302 cuts below the fish body. This arrangement ensures that the fish body always maintains a stable posture with its belly facing down at the circular saw blade 302, effectively preventing the fish body from tilting, deflecting or slipping due to the cutting force of the saw blade during the cutting process, and ensuring the accuracy and consistency of the cutting position.

[0067] VI. Fish body unfolding unit 4, such as Figure 5 As shown, the fish body unfolding unit 4 is located downstream of the auxiliary conveying unit 2 and is used to unfold the cut fish body so that the fish body remains open to facilitate subsequent scaling and evisceration.

[0068] The fish body unfolding unit 4 includes a support platform 401 and a pressure cone structure 404 disposed above the front part of the support platform 401. The support platform 401 is an elongated structure that extends along the fish body conveying direction. The front part of the support platform 401 has a triangular guide platform 402 for guiding the lower part of the fish body to unfold. The upper end surface of the rear part of the support platform 401 has a central ridge 407 extending along the conveying direction. On both sides of the central ridge 407, support surfaces 403 are formed that extend obliquely downward. The included angle between the two support surfaces 403 is an obtuse angle, which is 120°-160°, preferably 140°. The two support surfaces 403 extend along the fish body conveying direction and have smooth surfaces to support the two sides of the abdomen of the unfolded fish body.

[0069] A triangular guide platform 402 is located at the front end of the support platform 401. Its horizontal cross-sectional shape is approximately triangular, with the apex pointing towards the cutting unit 3. It is used to insert into the cut at the lower part of the fish body. The rear end gradually widens and smoothly connects to the two support platform surfaces 403. The upper part of the cross-section of the triangular guide platform 402 has an upward-facing apex. When the cut fish body reaches the triangular guide platform 402, the apex of the triangular guide platform 402 inserts into the fish body from the cut and gradually penetrates along the fish body conveying direction. As the cross-section of the triangular guide platform 402 gradually widens (specifically as shown in the figure), the guide platform continues to expand. Figure 9 As shown), the dissected fish body is spread apart from the inside to the sides by triangular guide platforms 402.

[0070] The cone-shaped structure 404 includes a rotating shaft disposed within the housing 7 and a rotating body fixedly disposed on the rotating shaft. The rotation center plane of the rotating body and the intermediate ridge 407 are located on the same plane, and the outer wall shape of the rotating body is adapted to the upper wall surface of the triangular guide platform 402. A conveying gap 405 is formed between the cone-shaped structure 404 and the triangular guide platform 402 for the fish body to unfold after cutting and pass through. The gap gradually narrows along the conveying direction. When the fish body enters, the gap is wider, which facilitates the fish head to enter. As the cone-shaped structure 404 rotates and enters the conveying gap, the gap gradually narrows. The cone-shaped structure 404 presses the cut fish body down from above and, together with the triangular guide platform 402 structure at the bottom, unfolds the cut fish body to both sides, so that the two sides of the fish body are attached to the two support surfaces 403 and remain in an unfolded state. After passing through the conveying gap 405, the fish body is pushed to the descaling gap of the descaling unit 5.

[0071] The rotating outer wall of the pressure cone structure 404 is provided with tooth-shaped protrusions, which are used to increase the friction with the surface of the fish body when the fish body passes through, assist the fish body to be transported forward, and prevent the fish body from stopping due to resistance during the unfolding process.

[0072] VII. Descaling Unit 5, such as Figure 5 , Figure 6 , Figure 8 As shown, the descaling unit 5 is located above the two support surfaces 403 at the rear of the support 401, and is used to descale the unfolded fish body.

[0073] The descaling unit 5 includes two descaling rollers 501 arranged at intervals above the support platform 401 along the fish conveying direction. Both descaling rollers 501 are cylindrical rollers with their axes parallel to each other and perpendicular to the fish conveying direction. Each descaling roller 501 has scraping teeth 502 on its outer wall, and its outer peripheral wall is adapted to the contour of the two support platform surfaces 403. A descaling gap is formed between the outer peripheral wall of the two descaling rollers 501 and the two support platform surfaces 403 to allow the fish to pass through. The height of the descaling gap is slightly less than the thickness of the fish, so that the fish is properly squeezed by the descaling rollers 501 when it passes through, ensuring that the scraping teeth 502 of the descaling rollers 501 can effectively contact the fish scales on the surface of the fish.

[0074] The two descaling rollers 501 rotate in the same direction, and their linear velocity directions are both pointing towards the outlet 702, thus providing a conveying force to the fish body in the direction of the outlet 702 while descaling.

[0075] One specific implementation method for adjusting the thickness of the descaling gap is as follows: a sliding block is fixed at both ends of the rotating shaft of the two descaling rollers 501. A sliding limiting groove is provided inside the housing 7. The sliding block is moved up and down according to the position of the limiting groove from the end of the descaling roller 501. The required adjustment height is achieved by electrically controlling the sliding block to slide up and down or by fixing the sliding block in the limiting groove through a limiting pin. At this time, the position height of the two descaling rollers 501 changes, and thus the height of the descaling gap also changes, thereby adapting to the descaling processing of larger fish.

[0076] In addition, in the above-described method of setting sliding blocks and grooves, the height of the two ends of the two descaling rollers 501 can be limited by setting elastic elements. Preferably, a vertical elastic element is set at the bottom of the limiting groove, and the elastic element is always in a compressed state, pushing the two descaling rollers 501 to move upward inside the groove. Under the premise that the gap between the descaling rollers 501 and the support surface 403 remains basically constant, the height of the descaling gap of the two descaling rollers 501 can be automatically adjusted according to the change of fish thickness through the adaptive compression and reset of the elastic element. Specifically, when the thickness of the fish to be processed is greater than the current descaling gap, after the fish enters the descaling station, it applies an upward squeezing force to the two descaling rollers 501, pushing the descaling rollers 501 to slide upward along the limiting groove, while further compressing them. The elastic element increases the descaling gap to accommodate thicker fish. After the fish passes through, the elastic element releases its elastic force to push the descaling roller 501 downwards to reset, restoring the descaling gap to its initial size to accommodate subsequent fish processing. In this way, the descaling unit 5 can automatically adjust the descaling gap according to the fish thickness, further improving the equipment's adaptability to fish of different sizes and avoiding incomplete descaling or excessive squeezing that could damage the fish meat due to a fixed gap. The elastic element is preferably a compression spring, but a gas spring or elastic rubber block can also be used, as long as it can apply a continuous elastic force to the sliding block. The limit pin can be a manual pin or an electromagnetic pin to achieve automatic control. Electric control can be integrated through the control motherboard, automatically adjusting the height of the descaling roller 501 according to the fish size signal.

[0077] like Figure 1 As shown, the end of the descaling roller 501 is connected to a drive device located on the side wall of the housing 7, and is driven to rotate by the drive device.

[0078] 8. Removal of internal organs, Unit 6, such as Figure 8 As shown, the viscera removal unit 6 is located inside the support 401, below the two descaling rollers 501 of the descaling unit 5, and is used to remove the viscera inside the fish's belly while descaling.

[0079] An opening 406 is provided on the support 401 at the position between the two descaling rollers 501. The opening 406 extends along the fish conveying direction and its width is adapted to the width of the fish cut. The opening 406 penetrates the upper surface of the support 401, so that the descaling station above the support 401 is connected to the cavity inside the support 401.

[0080] The visceration removal unit 6 includes a scraping roller 601 rotatably disposed inside the support 401. The scraping roller 601 is a cylindrical roller with its axis parallel to the axis of the descaling roller 501. Both ends of the scraping roller 601 are mounted on the side wall of the support 401 or the side wall of the housing 7 via bearing seats. Scraping ends 602 are circumferentially spaced on the cylindrical wall of the scraping roller 601. The scraping ends 602 are made of flexible material (such as rubber, silicone or nylon) and have a certain degree of elasticity and wear resistance. One end of the scraping end 602 is fixed to the cylindrical wall of the scraping roller 601, and the other end is a free end. When the scraping roller 601 rotates, the free end of the scraping end 602 moves in a circular motion with the rotation of the scraping roller 601 and extends to the opening 406 of the support 401.

[0081] As the scraping roller 601 rotates, the scraping end 602 carries the viscera from the fish's abdomen through the opening 406 of the support 401 into the cavity inside the support 401. The rotation direction of the scraping roller 601 is opposite to the conveying direction of the fish body. That is, when the scraping roller 601 rotates, the free end of the scraping end 602 moves upward at the opening 406 of the support 401, scraping the viscera from the fish's abdomen at the opening 406 downward. Since the scraping end 602 is made of flexible material, it can conform to the shape of the inner wall of the fish's abdomen when scraping the viscera. It can effectively scrape the viscera without damaging the muscle tissue of the inner wall of the fish's abdomen. The bottom of the cavity inside the support 401 is connected to a viscera collection container and / or a sewage pipe. The viscera collection container is preferably a detachable collection box for easy regular cleaning. The sewage pipe can directly discharge the viscera and cleaning wastewater outside the equipment and connect to the factory's sewage system.

[0082] 9. Transmission assembly 9, which provides power to the various moving parts of the equipment. For example... Figure 1 , Figure 3 As shown, the transmission assembly 9 in this embodiment includes a drive motor 905, a synchronous belt 901, and a guide wheel 904.

[0083] The drive motor 905 is fixedly installed inside the housing 7. The output end of the drive motor 905 is equipped with a drive pulley. Above the two spiral rods 101 of the adaptive clamping conveying unit 1 and the two wire brush rollers 201 of the auxiliary conveying unit 2, pulleys 902 are respectively provided. Each pulley 902 is fixedly installed on the upper end of the spiral rod 101 and the wire brush roller 201, rotating synchronously with them. A synchronous belt 901 is wound around the drive pulley, each pulley 902, and a guide wheel 904 mounted on the frame 8. The guide wheel 904 is positioned between each pulley 902 to guide the direction of the synchronous belt 901 and change its direction to... The two spiral rods 101 and the two wire brush rollers 201 rotate in a preset direction. The synchronous belt 901 is preferably a toothed synchronous belt, and the pulleys 902 and guide wheels 904 are correspondingly toothed pulleys to ensure the accuracy and synchronicity of the transmission and to prevent the synchronous belt 901 from slipping. The synchronous belt 901 moves under the drive of the drive pulley, and at the same time drives the pulleys 902 to rotate synchronously, thereby driving the two spiral rods 101 and the two wire brush rollers 201 to rotate synchronously. Since the pulleys 902 are driven by the same drive motor 905 through the same synchronous belt 901, the rotation speed of the pulleys 902 is completely synchronized, ensuring that the rotation frequency of the two spiral rods 101 and the two wire brush rollers 201 is consistent.

[0084] To achieve automatic tensioning of the synchronous belt 901 and to accommodate the need for opening lateral channels for different fish sizes, a tensioning mechanism 903 is provided on the frame 8. The tensioning mechanism 903 includes a swing arm mounted on the frame 8, a tensioning wheel at the end of the swing arm, and an elastic element connecting the swing arm and the frame 8. One end of the swing arm is hinged to the frame 8, and the other end is a free end with a tensioning wheel. The tensioning wheel presses against the synchronous belt 901. The elastic element applies an elastic force to the swing arm to tension the synchronous belt 901. When the screw rod 101 or wire brush... When the bristle roller 201 moves with the change in fish size, the position of the pulley 902 changes accordingly, causing the length of the winding path of the synchronous belt 901 to change. At this time, the tensioning wheel automatically adjusts its position under the elastic force of the elastic element, always applying appropriate pressure to the synchronous belt 901, thereby automatically compensating for the change in the length of the synchronous belt 901, so as to compensate for the slack of the synchronous belt 901 caused by the change in the distance between the two spiral rods 101 or between the two wire brush rollers 201, maintaining the constant tension of the synchronous belt 901, and preventing the synchronous belt 901 from loosening or slipping.

[0085] 10. Spraying device 703: The equipment also includes a spraying device 703, which has multiple spray outlets 704 located at one end near the inlet 701 and the other end near the outlet 702. These outlets are used to rinse and spray at least one of the following processing units in the fish transport direction: the adaptive clamping conveying unit 1, the cutting unit 3, and the auxiliary conveying unit 2 at the front end, and the descaling unit 5 and the visceration unit 6 at the rear end. The spraying device 703 includes a water supply pipeline, a solenoid valve installed on the water supply pipeline, and multiple spray outlets 704 located inside the housing 7. One end of the water supply pipeline is connected to an external water source, and the other end is connected to each spray outlet 704. During equipment operation, the spraying device 703 operates according to a pre-set schedule. The device is set to activate at a set time to spray cleaning water onto the fish and various processing parts, promptly removing scales, mucus, and visceral residues adhering to the surface of the fish and various parts, thus maintaining the cleanliness of the processing area. Preferred spraying locations include: rinsing the two spiral rods 101 of the adaptive clamping conveyor unit 1, rinsing the surfaces of the two wire brush rollers 201, rinsing residual blood at the roller cutter location, cleaning the scraping surface of the scraping roller, and rinsing the scraping roller brush 601. In addition, the device can be fixed above the tank, which helps the spray water to drain from the tank 7. The bottom of the tank 7 can be equipped with a unified drain outlet or dispersed drain outlets. With the spraying effect at each unit location, the working environment inside the tank 7 can be maintained.

[0086] XI. The working process of the equipment is described below in conjunction with... Figures 1 to 9 The working process of the device of the present invention will be described.

[0087] The operator feeds the fish to be processed (headed or not) into the equipment through the inlet 701 of the housing 7. The fish first enters the adaptive clamping conveying unit 1. The two spiral rods 101 of the adaptive clamping conveying unit 1 rotate synchronously in opposite directions under the drive of the drive motor 905. The spiral blades 102 on the two spiral rods 101 clamp the fish from both sides and push the fish towards the outlet 702 and downward with the help of the spiral structure of the spiral blades 102. When the fish enters between the two spiral rods 101, the base of the spiral rods 101 automatically retracts outward according to the width of the fish. At the same time, the elastic element provides a reverse clamping force, so that the spiral blades 102 always keep in contact with the surface of the fish, realizing adaptive clamping of fish of different sizes.

[0088] The fish is propelled into the cutting unit 3 by the adaptive clamping and conveying unit 1. The circular saw blade 302 of the cutting unit 3 rotates at high speed under the drive of the rotating shaft 301, cutting the fish from head to tail. At the same time, the rollers 303 on both sides of the circular saw blade 302 support the fish from below and rotate in the direction of the linear velocity of its outer wall toward the outlet 702, thus assisting in pushing the fish toward the outlet 702. The two wire brush rollers 201 of the auxiliary conveying unit 2 clamp and convey the fish from both sides, forming a diamond four-point limit for the fish together with the adaptive clamping and conveying unit 1, so that the fish always maintains a stable posture with its belly facing down at the circular saw blade 302.

[0089] After being cut open, the fish body enters the fish body unfolding unit 4. The triangular guide platform 402 at the front of the support platform 401 is inserted into the fish body through the cut opening, spreading the fish body open to both sides. The pressure cone structure 404 presses the fish body down from above, and together with the triangular guide platform 402 at the bottom, unfolds the cut fish body to both sides, so that the fish body is attached to the two support surfaces 403 at the rear of the support platform 401, maintaining the unfolded state.

[0090] After being unfolded, the fish enters the descaling unit 5 and the evisceration unit 6. The two descaling rollers 501 of the descaling unit 5 squeeze the fish from above, and the scraping teeth 502 on the outer wall of the roller scrape off the scales on the surface of the fish. Since the scraping teeth 502 on the outer wall of the roller are divided into multiple segments of different thicknesses along the axial direction, different parts of the fish are subjected to the action of scraping teeth 502 of different thicknesses, so as to achieve graded descaling. At the same time, the scraping roller brush 601 of the evisceration unit 6 rotates in the opposite direction. The scraping brush end 602 scrapes off the evisceration inside the fish through the opening 406 of the support 401 and brings it into the cavity inside the support 401. The evisceration falls into the evisceration collection container or is discharged through the sewage pipe under the action of gravity.

[0091] After being scaled and gutted, the fish continues to move forward under the propulsion of the descaling roller 501, and is finally output from the outlet 702 of the box 7, completing the entire processing process. Throughout the processing, the spray device 703 is turned on at regular intervals to rinse the fish and the inside of the equipment.

[0092] Other embodiments of the present invention:

[0093] It should be noted that, in addition to compression springs, the elastic components in the above units can also be gas springs, elastic rubber blocks, or other elastic elements, as long as they can apply elastic force to the spiral rod 101 or the wire brush roller 201. In addition to synchronous toothed belts, synchronous belts 901 can also be flat transmission belts, V-belts, or other types of transmission belts. The spraying sequence of the spraying device 703 can be flexibly set according to actual needs. It can be timed spraying or on-demand spraying using sensor feedback combined with microcontroller logic timing control. The number and coarseness distribution of the scraping teeth 502 of the descaling roller 501 can be adjusted according to the size and distribution characteristics of the scales of the target fish species to adapt to different processing requirements.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0095] The present invention has been described by way of example in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvement made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution of the present invention to other occasions without modification, shall be within the protection scope of the present invention.

Claims

1. An automated continuous processing device for fish, comprising a frame (8) and a housing (7) disposed on the frame (8), wherein the housing (7) has an inlet (701) and an outlet (702) on opposite sides, characterized in that: Along the fish transport direction from the inlet (701) to the outlet (702), the inside of the box (7) is sequentially provided with: The adaptive clamping and conveying unit (1) includes two spiral rods (101) disposed at the inlet (701). The outer peripheral wall of each spiral rod (101) is provided with spiral blades (102) extending spirally downward along its axial direction. The bottom of the two spiral rods (101) are respectively slidably engaged with the housing (7). The adaptive clamping and conveying unit (1) also includes two elastic members acting on the side of the base of the two spiral rods (101) for applying an elastic force to the two spiral rods (101) to bring them closer together. The two spiral rods (101) rotate in opposite directions, and the spiral blades (102) on the two spiral rods (101) rotate in opposite directions. When the two spiral rods (101) rotate, the edges of the two spiral blades (102) form a clamping contact with the fish body from both sides, and the fish body is pushed towards the outlet (702) and downward through the spiral conveying direction of the spiral blades (102). The cutting unit (3) includes a rotating shaft (301) rotatably disposed inside the box (7) and a circular saw blade (302) fixedly installed on the rotating shaft (301). The axis of the rotating shaft (301) is perpendicular to the fish conveying direction. The circular saw blade (302) is centrally disposed between the two spiral rods (101) and is used to cut the fish body along the length direction of the fish. The auxiliary conveying unit (2) includes two opposing wire brush rollers (201), which are slidably connected to the bottom surface of the housing (7). The auxiliary conveying unit (2) also includes two elastic elements acting on both sides of the base of the two wire brush rollers (201) to apply an elastic force to the two wire brush rollers (201) to bring them closer together. The two wire brush rollers (201) rotate in opposite directions, and their linear velocity direction points towards the outlet (702). The fish body unfolding unit (4) includes a support platform (401) and a pressure cone structure (404) disposed above the front part of the support platform (401); the front part of the support platform (401) has a triangular guide platform (402) for guiding the unfolding of the fish head in a lower section, and the upper end surface of the rear part of the support platform (401) has a central ridge (407) extending along the conveying direction, and the two sides of the central ridge (407) respectively form a support platform surface (403) extending obliquely downward; The pressure cone structure (404) includes a rotating shaft disposed in the box (7) and a rotating body fixedly disposed on the rotating shaft. The rotation center plane of the rotating body is located in the same plane as the intermediate ridge (407), and the outer wall shape of the rotating body is adapted to the upper wall surface of the triangular guide platform (402). A conveying gap (405) is formed between the pressure cone structure (404) and the triangular guide platform (402) for the fish body to unfold and pass through after cutting. The descaling unit (5) includes two descaling rollers (501) arranged at intervals above the support platform (401) along the fish conveying direction. Each of the two descaling rollers (501) has scraping teeth (502) on its outer wall, and the outer peripheral walls are respectively adapted to the contours of the two support platform surfaces (403). A descaling gap is formed between the outer peripheral walls of the two descaling rollers (501) and the two support platform surfaces (403) for the fish to pass through. The two descaling rollers (501) rotate in the same direction and their linear velocity direction points towards the outlet (702). The viscera removal unit (6) includes a scraping roller (601) rotatably disposed inside the support (401). The support (401) has an opening (406) at a corresponding position above the scraping roller (601). When the scraping roller (601) rotates, it carries the viscera inside the fish's abdomen into the cavity inside the support (401) through the opening (406). It also includes a drive assembly for driving the rotating parts in each processing unit to rotate.

2. The automated continuous fish processing equipment according to claim 1, characterized in that: Two sets of slide rails (103) are provided on the bottom surface of the box (7). One set of slide rails (103) is slidably connected to the bottom of the two wire brush rollers (201), and the other set of slide rails (103) is slidably connected to the bottom of the two spiral rods (101). The two elastic elements respectively apply elastic force to the bottom of the spiral rod (101) and the wire brush roller (201) to make them move closer to the other spiral rod (101) and the wire brush roller (201).

3. The automated continuous fish processing equipment according to claim 1, characterized in that: Rollers (303) are fixedly sleeved on both sides of the rotating shaft (301) and the circular saw blade (302) respectively. The two rollers (303) are used to support the fish body located on both sides of the circular saw blade (302) and transport the fish body to the outlet (702) when the rotating shaft (301) rotates. The outer wall of the roller (303) is provided with anti-slip protrusions, and the outer circle of the rotating circular saw blade (302) protrudes from the outer circle surface of the anti-slip protrusions.

4. The automated continuous fish processing equipment according to claim 3, characterized in that: The adaptive clamping conveying unit (1), the roller (303), and the auxiliary conveying unit (2) are arranged sequentially along the fish conveying direction. The two spiral rods (101) of the adaptive clamping conveying unit (1) and the two wire brush rollers (201) of the auxiliary conveying unit (2) clamp and limit the fish from both sides of the fish, so that the fish body is kept in a stable posture with its belly facing down at the circular saw blade (302).

5. The automated continuous fish processing equipment according to claim 1, characterized in that: The tip of the triangular guide platform (402) structure points towards the cutting unit (3) and is used to insert into the cut at the bottom of the fish body; a guide gap that gradually narrows along the conveying direction is formed between the pressure cone structure (404) and the front part of the support platform (401); when the fish body passes through, the pressure cone structure (404) cooperates with the triangular guide platform (402) structure at the bottom to spread the cut fish body to both sides; a descaling gap for the fish body to pass through is formed between the two rollers of the descaling unit (5) and the two support surfaces (403) at the rear of the support platform (401).

6. The automated continuous fish processing equipment according to claim 1, characterized in that: The outer walls of the two descaling rollers (501) are provided with a number of scraping teeth (502). The two descaling rollers (501) are arranged in parallel along the direction from the inlet (701) to the outlet (702). The scraping teeth (502) on the outer walls of the two descaling rollers (501) are of different coarseness. The rotating outer wall surface of the pressure cone structure (404) is provided with tooth-shaped protrusions for increasing the conveying friction.

7. The automated continuous fish processing equipment according to claim 1, characterized in that: The scraping end (602) of the scraping roller (601) extends to the opening (406), and the bottom of the cavity inside the support (401) is connected to an internal organ collection container and / or a sewage pipe.

8. The automated continuous fish processing equipment according to claim 1, characterized in that: The two spiral rods (101) of the adaptive clamping conveying unit (1) and the two wire brush rollers (201) of the auxiliary conveying unit (2) are driven to rotate by the same drive motor (905) through the transmission assembly (9); The transmission assembly (9) includes a synchronous belt (901) and a guide wheel (904). The upper ends of the two spiral rods (101) and the upper ends of the two wire brush rollers (201) are respectively fixed with pulleys (902). The synchronous belt (901) is wound between each of the pulleys (902) and the guide wheel (904). The drive motor (905) drives the two spiral rods (101) and the two wire brush rollers (201) to rotate synchronously through the synchronous belt (901). The guide wheel (904) is disposed between each of the pulleys (902) and is used to change the direction of the synchronous belt (901) so that the two spiral rods (101) and the two wire brush rollers (201) rotate in a preset direction.

9. The automated continuous fish processing equipment according to claim 8, characterized in that: The transmission assembly (9) further includes a tensioning mechanism (903), which includes a swing arm mounted on the frame (8), a tensioning wheel mounted at the end of the swing arm, and an elastic element connected between the swing arm and the frame (8). The tensioning wheel presses against the synchronous belt (901), and the elastic element applies an elastic force to the swing arm to tension the synchronous belt (901) so as to compensate for the slack of the synchronous belt (901) caused by the change in the distance between the two spiral rods (101) or between the two wire brush rollers (201).

10. The automated continuous fish processing equipment according to claim 1, characterized in that: It also includes a spray device (703) installed inside the box (7). The spray device (703) has multiple spray ends (704) and is respectively located near one end of the inlet (701) and one end of the outlet (702). It is used to rinse and spray at least one of the processing units in the fish body conveying direction, namely the adaptive clamping conveying unit (1), the cutting unit (3), the auxiliary conveying unit (2) at the front end and the scale removal unit (5) and the visceration removal unit (6) at the rear end.

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