A fish scale removing mechanism for fish processing

Abstract

The present application relates to fish processing technical field, disclose a kind of fish processing is used to remove scale mechanism, including with the support frame fixed connection of scale cylinder, the scale cylinder is equipped with fish inlet and fish outlet, the fish inlet is matched with the width size of fish, the scale cylinder is equipped with two groups of scale roller groups, two groups of scale roller groups all include multiple scale rollers, the axis of each scale roller in two groups of scale roller groups is parallel with the axis of scale cylinder, each scale roller in two groups of scale roller groups is respectively equidistantly distributed on the circumference concentric with scale cylinder, the quantity and position of each scale roller in two groups of scale roller groups correspond, and the corresponding scale roller of two groups of scale roller groups is relatively rotated, the surface of each scale roller in two groups of scale roller groups is equipped with multiple groups of elastic scale removal mechanism one for removing fish scale.The present application can effectively solve the problem of damage to fish body and poor scale removal effect, scale removal is not sufficient in the scale removal process of existing equipment.

Description

Technical Field

[0001] This invention relates to the field of fish processing technology, and in particular to a descaling mechanism for fish processing. Background Technology

[0002] The gutting and processing of fish has long been a challenge for the entire industry. Traditional methods rely primarily on manual labor, which is not only labor-intensive and inefficient but also poses certain safety hazards. With rapid technological advancements, automation has been widely applied across various industries, significantly improving production efficiency and quality. However, in the field of fish gutting and processing, the application of automation technology remains relatively lagging. Although some automated equipment related to eel processing exists on the market, it often has limited functionality, making it difficult to automate the entire gutting and processing process. Furthermore, it has specific requirements regarding the size and shape of the fish, failing to meet the diverse and large-scale production needs.

[0003] Chinese patent application CN117296905A discloses a descaling and gutting system. This invention relates to the field of fish scale removal technology. The system includes a frame, a lifting conveyor belt, a descaling mechanism, a conveying mechanism, a directional mechanism, and a gutting mechanism, all sequentially arranged on the frame. The descaling mechanism is located at the end of the lifting conveyor belt and includes a descaling frame, a descaling chamber, descaling rollers, and a conveying auger. The descaling chamber is located on the descaling frame, and the conveying auger is rotatably connected inside the descaling chamber. The descaling rollers are arranged in two sets. Two sets of descaling rollers are rotatably connected inside the descaling chamber. Each descaling roller is equipped with a brush. The descaling chamber is equipped with a drive motor and a drive motor. The drive motor drives the conveying auger to rotate. The end of each descaling roller is equipped with a drive component. The drive motor drives the drive component to rotate the descaling roller. The conveying auger is axially equipped with a lever, which enables automatic descaling and gutting. The descaling mechanism in this device drives the fish to move axially inside the descaling chamber through the conveying auger, and at the same time, the brushes on the descaling rollers descale the moving fish.

[0004] However, since fish scales are generally tile-shaped and tightly attached to the surface of the fish in a certain growth order, especially for different fish species (such as crucian carp and grass carp), the size, hardness and adhesion of the scales vary significantly. The above-mentioned brush-type descaling mechanism only removes scales by mechanical friction, which is not only difficult to completely remove stubborn scales, but also easily causes damage to the surface of the fish. In addition, the brush only contacts the sides of the fish when descaling, and the contact area is small, making it difficult to remove scales from the back and belly of the fish. It urgently needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a descaling mechanism for fish processing, which can effectively solve the problems of damage to the fish body and poor descaling effect and insufficient descaling during the descaling process of existing equipment.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution:

[0007] A descaling mechanism for fish processing includes a descaling cylinder fixedly connected to a support frame. The descaling cylinder has a fish inlet and a fish outlet. The fish inlet matches the width of the fish. The descaling cylinder has two sets of descaling rollers, each set including multiple descaling rollers. The axis of each descaling roller in the two sets is parallel to the axis of the descaling cylinder. Each descaling roller in the two sets is equally spaced on a circumference concentric with the descaling cylinder. The number and position of each descaling roller in the two sets correspond, and two corresponding descaling rollers in the two sets rotate relative to each other. The surface of each descaling roller in the two sets is provided with multiple sets of elastic descaling mechanisms for removing scales from the fish body.

[0008] By adopting the above technical solution, the fish inlet is matched with the width of the fish, ensuring that the growth direction of the fish scales matches the rotation direction of the descaling rollers when the fish enters the descaling cylinder from the inlet, and the scales fall between the two sets of descaling rollers. At this time, as each descaling roller in the two sets rotates relative to the other, it drives the elastic descaling mechanism to descale the fish from both sides of its body. Because the elastic descaling mechanism has a certain elasticity, it can closely adhere to the fish body and ensure that fish of different sizes can achieve the best descaling effect, thereby greatly reducing the risk of damage to the fish surface caused by excessive compression during the descaling process. Furthermore, by... When the fish enters the descaling cylinder, the growth direction of the fish scales matches the rotation direction of the descaling rollers. Furthermore, each descaling roller in the two sets of descaling rollers is equally spaced on a circumference concentric with the descaling cylinder. Therefore, when each descaling roller in the two sets of descaling rollers drives the elastic descaling mechanism to rotate, the fish will move along the annular channel between the two sets of descaling rollers. Thus, there is no need to control the direction of the fish's head and tail when the fish enters the descaling cylinder from the fish inlet. The elastic descaling mechanism can cut into the gap between the scales against the natural growth direction of the fish scales and lift and pop the scales out, so that the fish scales are quickly separated from the fish body, thereby achieving a highly efficient descaling effect.

[0009] A further configuration of the present invention is as follows: a turntable one and a turntable two are respectively provided at both ends of the descaling cylinder. The turntable one and the turntable two are rotatably connected to both ends of the descaling cylinder through a central shaft. One end of the central shaft is connected to a drive motor fixed on a support frame. The two ends of each descaling roller in the descaling roller group away from the center of the descaling cylinder are rotatably connected to both ends of the descaling cylinder. The two ends of each descaling roller in the descaling roller group close to the center of the descaling cylinder are rotatably connected to turntable one and turntable two.

[0010] A further provision of the present invention is that: a drive gear is fixedly provided at one end of the central shaft, and each descaling roller in the descaling roller group that is rotatably connected to both ends of the descaling cylinder is provided with a driven gear at one end, and each driven gear meshes with the drive gear.

[0011] A further feature of the present invention is that: one end of each descaling roller in the descaling roller group rotatably connected to both ends of the descaling cylinder is provided with a driven gear two; and one end of each descaling roller in the descaling roller group rotatably connected to turntable one and turntable two is provided with a driven gear three; the driven gear three engages with or disengages from the driven gear two when the turntable one and turntable two rotate.

[0012] By adopting the above technical solution, after the drive motor starts, it drives the central shaft to rotate. When the central shaft rotates, it drives turntable one and turntable two to rotate synchronously. When turntable one and turntable two rotate synchronously, they drive each descaling roller in the descaling roller group near the center of the descaling cylinder to revolve around the central shaft. When each descaling roller in the descaling roller group near the center of the descaling cylinder revolve around the central shaft, its other end fixed with driven gear three engages or disengages with driven gear two. Simultaneously, the rotation of the central shaft also drives the drive gear to rotate synchronously. When the drive gear rotates, it drives each driven gear one meshing with it to rotate. The rotation of driven gear one drives the remote gear fixedly connected to it... Each descaling roller in the descaling roller group away from the center of the descaling cylinder rotates, thereby driving the driven gear two, which is fixedly connected to the other end of each descaling roller in the descaling roller group away from the center of the descaling cylinder, to rotate. When the driven gear three meshes with the driven gear two, it drives each descaling roller in the descaling roller group near the center of the descaling cylinder, which is fixedly connected to it, to rotate. This ensures that when the driven gear three meshes with the driven gear two, the descaling rollers in the two sets of descaling roller groups near and far from the center of the descaling cylinder can rotate relative to each other, thereby ensuring that the descaling rollers in the two sets of descaling roller groups can drive the elastic descaling mechanism one to perform descaling operations from both sides of the fish body.

[0013] A further feature of the present invention is that each set of elastic descaling mechanisms includes multiple elastic descaling elements. Each elastic descaling element in each set of elastic descaling mechanisms is evenly distributed on the same circumference on the outer wall of the descaling roller. One end of each elastic descaling element is fixed on the outer wall of the descaling roller, and the other end extends along the tangential direction of the descaling roller. The extension direction of each elastic descaling element is opposite to the rotation direction of the descaling roller.

[0014] A further feature of the present invention is that one end of the elastic descaling member is detachably connected to the descaling roller by a bolt, and the other end of the elastic descaling member is provided with a bending portion, which extends away from the descaling roller.

[0015] By adopting the above technical solution, each elastic descaling component in each set of elastic descaling mechanisms can, as the descaling roller fixedly connected to it rotates, have its other end bent against the side wall of the fish body and gradually cut into the gap between the scales against the natural growth direction of the fish scales. As the descaling roller continues to rotate, the bent part deforms under the resistance of the fish scales and accumulates elastic force. When the bent part lifts up the remaining force until the fish scales separate from the fish body, the elastic descaling component pops the fish scales out under the action of rebound force, avoiding the fish scales from sticking to the bent part and affecting the next descaling operation, thus ensuring efficient descaling effect. At the same time, it reduces the wear of the fish scales on the descaling roller and extends the service life of the equipment. The bent part is cleverly designed, which can effectively descale, avoid damage to the fish body, and improve descaling efficiency.

[0016] A further provision of the present invention is that: a fish inlet hopper for accommodating fish to be processed is fixedly provided above the fish inlet, and a row of fish pipes is provided at the bottom of the fish inlet hopper. The diameter of the fish pipes matches the width of the fish. The bottom opening of the fish pipes is located on the top side of the descaling cylinder and is opposite to two adjacent descaling rollers in the descaling roller group away from the center of the descaling cylinder.

[0017] By adopting the above technical solution, the diameter of the fish discharge pipe matches the width of the fish, and the bottom opening of the fish discharge pipe is located on one side of the descaling cylinder. This ensures that the fish entering the descaling cylinder from the fish inlet naturally fall into the descaling channel formed between the two sets of descaling rollers, and that the growth direction of the fish scales matches the rotation direction of the descaling rollers, thus ensuring that the elastic descaling mechanism on the descaling rollers can descale efficiently.

[0018] A further feature of the present invention is that the descaling cylinder is provided with a spiral channel, which is formed by two parallel spiral plates enclosing the inner wall of the descaling cylinder. The two ends of the two spiral plates are respectively fixedly connected to the two ends of the descaling cylinder. One end of the spiral channel is opposite to the bottom opening of the fish discharge pipe, and the other end of the spiral channel is opposite to the fish outlet. Each descaling roller in the descaling roller group that is rotatably connected to the two ends of the descaling cylinder passes through the spiral plate of the spiral channel and is rotatably connected to the spiral plate of the spiral channel.

[0019] By adopting the above technical solution, the spiral channel is used to guide the movement of the fish, so that the fish entering between the two sets of descaling rollers from the bottom of the fish discharge pipe can reach the fish outlet in a spiral motion. This not only increases the movement path of the fish in the descaling process, so that the fish scales can be fully removed and further improve the descaling effect, but also improves the space utilization of the descaling cylinder, so that multiple fish can be processed at the same time, speeding up the entire descaling process and improving the overall efficiency of the production line.

[0020] A further feature of the present invention is that: multiple sets of elastic descaling mechanisms II for removing scales from the belly or back of fish are provided on the opposite side wall of the two spiral plates of the spiral channel. Each elastic descaling mechanism II includes multiple elastic descaling teeth, each elastic descaling tooth is inclined, and the inclination direction of the elastic descaling teeth in each elastic descaling mechanism II is the same as or opposite to the conveying direction of the spiral channel. The inclination directions of the elastic descaling teeth in adjacent elastic descaling mechanisms II are opposite.

[0021] By adopting the above technical solution, during the movement of the fish in the spiral channel, the belly and back of the fish will come into contact with the elastic descaling mechanism II on the side wall of the spiral channel. The elastic descaling teeth in the elastic descaling mechanism II will remove the scales on the belly or back of the fish, further ensuring that the scales are fully removed. The descaling teeth are inclined to facilitate cutting into the gaps between the scales, thereby removing scales efficiently. The opposite inclination direction of the elastic descaling teeth in adjacent elastic descaling mechanisms II is to adapt to fish with different head and tail directions, so that they can be effectively descaled during the process of passing through the spiral channel. The elastic descaling teeth are made of highly elastic material to ensure that the scales are effectively scraped off during the descaling process without damaging the surface of the fish, thus extending the service life of the equipment.

[0022] A further feature of the present invention is that, in the descaling roller group rotatably connected to both ends of the descaling cylinder, apart from the two descaling rollers at opposite positions of the bottom opening of the fish discharge pipe, each pair of descaling rollers is provided with an arc-shaped support mesh plate, and each of the arc-shaped support mesh plates is located on the same circumference. A spray pipe is also fixedly provided on the top wall of the descaling cylinder. The descaling cylinder is inclined, and the end of the descaling cylinder near the fish inlet is higher than the end near the fish outlet.

[0023] By adopting the above technical solution, the arc-shaped support mesh plate can effectively support the fish and prevent it from slipping between adjacent descaling rollers during the descaling process, ensuring that the fish passes smoothly through the descaling roller assembly. At the same time, the spray pipe can wash away the detached scales in time, keeping the inside of the descaling cylinder clean and ensuring that the scales are completely removed. The end of the descaling cylinder near the fish inlet is higher than the end near the fish outlet, making the entire spiral channel at a natural tilt angle. This ensures that the fish can more easily slide from the end of the spiral channel near the fish inlet to the end near the fish outlet under its own gravity, further optimizing the descaling efficiency. Meanwhile, the spray pipe sprays and cleans the fish, descaling roller assembly, and spiral channel during the descaling process, making the fish body more slippery and clean, facilitating further thorough descaling and forward sliding. The fish scales are washed away and discharged from the mesh of the arc-shaped support mesh plate, which not only avoids blockage and ensures the smooth operation of the entire descaling system, but also facilitates the smooth discharge of the descaled fish from the descaling cylinder and the centralized collection of scales, making subsequent processing and cleaning work convenient.

[0024] The beneficial effects of this invention are:

[0025] 1. In this invention, the fish inlet is matched to the width of the fish, ensuring that the growth direction of the scales matches the rotation direction of the descaling rollers as the fish enters the descaling cylinder. The scales fall between two sets of descaling rollers. During this relative rotation, each descaling roller in the two sets drives an elastic descaling mechanism to descale the fish from both sides. Because the elastic descaling mechanism has a certain elasticity, it can closely adhere to the fish body and ensure optimal descaling for fish of different sizes, thus greatly reducing the risk of excessive pressure and surface damage during descaling. Furthermore, because the fish enters... When the fish enters the descaling cylinder, the growth direction of the fish scales matches the rotation direction of the descaling rollers. Furthermore, each descaling roller in the two sets of descaling rollers is equally spaced on a circumference concentric with the descaling cylinder. Therefore, when each descaling roller in the two sets of descaling rollers drives the elastic descaling mechanism to rotate, the fish will move along the annular channel between the two sets of descaling rollers. Thus, there is no need to control the direction of the fish's head and tail when the fish enters the descaling cylinder from the fish inlet. The elastic descaling mechanism can cut into the gap between the scales against the natural growth direction of the fish scales and lift and pop the scales out, so that the fish scales are quickly separated from the fish body, thereby achieving a highly efficient descaling effect.

[0026] 2. In this invention, each elastic descaling component in each set of elastic descaling mechanisms rotates with the descaling roller fixedly connected to it. Its bent portion at the other end abuts against the side wall of the fish body and gradually cuts into the gaps between the scales against the natural growth direction of the fish scales. As the descaling roller continues to rotate, the bent portion deforms under the resistance of the fish scales and accumulates elastic force. When the bent portion uses its remaining force to lift the fish scales and separate them from the fish body, the elastic descaling component ejects the fish scales under the rebound force, preventing the fish scales from adhering to the bent portion and affecting the next descaling operation. This ensures efficient descaling while reducing wear on the descaling roller and extending the equipment's service life. The ingenious design of the bent portion effectively descales the fish, avoids damage to the fish body, and improves descaling efficiency.

[0027] 3. In this invention, the spiral channel is used to guide the movement of the fish, so that the fish entering between the two sets of descaling rollers from the bottom of the fish discharge pipe can reach the fish outlet in a spiral motion. This not only increases the movement path of the fish during the descaling process, so that the fish scales can be fully removed, further improving the descaling effect, but also improves the space utilization of the descaling cylinder, so that multiple fish can be processed at the same time, speeding up the entire descaling process and improving the overall efficiency of the production line.

[0028] 4. In this invention, the elastic descaling mechanism two contacts the spiral channel sidewall. The elastic descaling teeth in the elastic descaling mechanism two remove the scales on the fish belly or back, further ensuring that the scales are fully removed. The descaling teeth are inclined to facilitate cutting into the gaps between the scales, thereby removing scales efficiently. The opposite inclination direction of the elastic descaling teeth in adjacent elastic descaling mechanisms two is to accommodate fish with different head and tail directions, so that they can be effectively descaled during the process of passing through the spiral channel. The elastic descaling teeth are made of highly elastic material to ensure that the scales are effectively scraped off during the descaling process without damaging the surface of the fish, thus extending the service life of the equipment.

[0029] 5. In this invention, the arc-shaped support mesh effectively supports the fish, preventing it from slipping between adjacent descaling rollers during the descaling process. This ensures the fish passes smoothly through the descaling roller assembly. Simultaneously, the spray pipes promptly wash away detached scales, keeping the inside of the descaling cylinder clean and ensuring thorough scale removal. The end of the descaling cylinder near the inlet is higher than the end near the outlet, creating a natural tilt angle in the spiral channel. This allows the fish to slide more easily from the inlet to the outlet under its own weight, further optimizing descaling efficiency. Furthermore, the spray pipes clean the fish, descaling roller assembly, and spiral channel during descaling, making the fish more slippery and clean, facilitating further descaling and forward sliding. The scales are washed away and discharged through the mesh of the arc-shaped support mesh, preventing blockages and ensuring smooth operation of the entire descaling system. It also facilitates the smooth discharge of descaled fish from the descaling cylinder and the centralized collection of scales, simplifying subsequent processing and cleaning. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a cross-sectional structural schematic diagram of a descaling mechanism for fish processing according to the present invention.

[0032] Figure 2 This is a schematic diagram of the transmission structure of each descaling roller group and the drive motor in a descaling mechanism for fish processing according to the present invention.

[0033] Figure 3 This is a schematic diagram of the meshing structure of the drive gear and driven gear 1 of each descaling roller group in a descaling mechanism for fish processing according to the present invention.

[0034] Figure 4 This is a diagram illustrating the movement path of a fish after it enters the descaling tube head-down.

[0035] Figure 5 This is a diagram illustrating the movement path of a fish after it enters the descaling tube with its tail facing down.

[0036] Figure 6 This is a schematic diagram showing the natural growth direction of fish scales after the fish enters the descaling cylinder with its head facing down, and the extension direction of the bent part of the elastic descaling component on that side of the descaling roller.

[0037] Figure 7 This is a schematic diagram showing the natural growth direction of the fish scales as it enters the descaling cylinder with its head facing down and moves to the other side of the descaling cylinder, along with the extension direction of the bent portion of the elastic descaling component on that side of the descaling roller.

[0038] Figure 8 This is a schematic diagram showing the natural growth direction of fish scales after the fish enters the descaling cylinder with its head facing upwards, and the extension direction of the bent part of the elastic descaling component on the descaling roller on that side.

[0039] Figure 9 This is a schematic diagram showing the natural growth direction of the fish scales as it enters the descaling cylinder with its head facing upwards and moves to the other side of the descaling cylinder, along with the extension direction of the bent portion of the elastic descaling component on that side of the descaling roller.

[0040] Figure 10 A schematic diagram of the spiral channel in a fish descaling mechanism of the present invention.

[0041] Figure 11 This is a schematic diagram of the elastic descaling mechanism 2 on the two spiral plates of the spiral channel in a descaling mechanism for fish processing.

[0042] In the diagram: 1. Support frame; 2. Descaling cylinder; 3. Fish inlet; 4. Descaling roller assembly; 5. Descaling roller; 6. Elastic descaling mechanism one; 7. Turntable one; 8. Turntable two; 9. Central shaft; 10. Drive motor; 11. Drive gear; 12. Driven gear one; 13. Driven gear two; 14. Elastic descaling component; 15. Bending section; 16. Fish inlet hopper; 17. Fish discharge pipe; 18. Spiral channel; 19. Spiral plate; 20. Fish outlet; 21. Elastic descaling mechanism two; 22. Spray pipe; 23. Driven gear three; 24. Arc-shaped support mesh plate. Detailed Implementation

[0043] The technical solution of the present invention will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0044] like Figures 1-11As shown, a descaling mechanism for fish processing includes a descaling cylinder 2 fixedly connected to a support frame 1. The descaling cylinder 2 is provided with a fish inlet 3 and a fish outlet 20. The fish inlet 3 is matched with the width of the fish. The descaling cylinder 2 is provided with two sets of descaling roller groups 4. Each set of descaling roller groups 4 includes multiple descaling rollers 5. The axis of each descaling roller 5 in the two sets of descaling roller groups 4 is parallel to the axis of the descaling cylinder 2. Each descaling roller 5 in the two sets of descaling roller groups 4 is equally spaced on a circumference concentric with the descaling cylinder 2. The number and position of each descaling roller 5 in the two sets of descaling roller groups 4 correspond one-to-one, and two corresponding descaling rollers 5 in the two sets of descaling roller groups 4 rotate relative to each other. The surface of each descaling roller 5 in the two sets of descaling roller groups 4 is provided with multiple sets of elastic descaling mechanisms 6 for removing fish scales.

[0045] Furthermore, the descaling cylinder 2 is provided with a first turntable 7 and a second turntable 8 at both ends. The first turntable 7 and the second turntable 8 are rotatably connected to both ends of the descaling cylinder 2 via a central shaft 9. One end of the central shaft 9 is connected to a drive motor 10 fixed on the support frame 1. The two ends of each descaling roller 5 in the descaling roller group 4 away from the center of the descaling cylinder 2 are rotatably connected to both ends of the descaling cylinder 2. The two ends of each descaling roller 5 in the descaling roller group 4 close to the center of the descaling cylinder 2 are rotatably connected to the first turntable 7 and the second turntable 8.

[0046] Furthermore, a drive gear 11 is fixedly provided at one end of the central shaft 9, and each descaling roller 5 in the descaling roller group 4, which is rotatably connected to both ends of the descaling cylinder 2, is provided with a driven gear 12 at one end, and each driven gear 12 meshes with the drive gear 11.

[0047] Furthermore, each descaling roller 5 in the descaling roller group 4, which is rotatably connected to both ends of the descaling cylinder 2, is provided with a driven gear 2 13 at one end. Each descaling roller 5 in the descaling roller group 4, which is rotatably connected to turntable 1 7 and turntable 2 8, is provided with a driven gear 3 23 at the same end as the driven gear 2 13. The driven gear 3 23 engages with or disengages from the driven gear 2 13 when the turntable 1 7 and turntable 2 8 rotate.

[0048] Furthermore, each set of elastic descaling mechanisms 6 includes multiple elastic descaling elements 14. Each elastic descaling element 14 in each set of elastic descaling mechanisms 6 is evenly distributed on the same circumference on the outer wall of the descaling roller 5. One end of each elastic descaling element 14 is fixed on the outer wall of the descaling roller 5, and the other end extends along the tangent direction of the descaling roller 5. The extension direction of each elastic descaling element 14 is opposite to the rotation direction of the descaling roller 5.

[0049] Furthermore, one end of the elastic descaling member 14 is detachably connected to the descaling roller 5 by bolts, and the other end of the elastic descaling member 14 is also provided with a bending portion 15, which extends away from the descaling roller 5.

[0050] Furthermore, a fish inlet hopper 16 for accommodating fish to be processed is fixedly provided above the fish inlet 3. A row of fish pipes 17 is provided at the bottom of the fish inlet hopper 16. The diameter of the fish pipes 17 matches the width of the fish. The bottom opening of the fish pipes 17 is located on the top side of the descaling cylinder 2 and is opposite to two adjacent descaling rollers 5 in the descaling roller group 4 that is far from the center of the descaling cylinder 2.

[0051] Furthermore, the descaling cylinder 2 is also provided with a spiral channel 18, which is formed by two parallel spiral plates 19 and the inner wall of the descaling cylinder 2. The two ends of the two spiral plates 19 are fixedly connected to the two ends of the descaling cylinder 2, one end of the spiral channel 18 is opposite to the bottom opening of the fish discharge pipe 17, and the other end of the spiral channel 18 is opposite to the fish outlet 20. Each descaling roller 5 in the descaling roller group 4, which is rotatably connected to the two ends of the descaling cylinder 2, passes through the spiral plates 19 of the spiral channel 18 and is rotatably connected to the spiral plates 19 of the spiral channel.

[0052] Furthermore, on the opposite sidewall of the two spiral plates 19 of the spiral channel 18, there are multiple sets of elastic descaling mechanisms 21 for removing scales from the belly or back of the fish. Each elastic descaling mechanism 21 includes multiple elastic descaling teeth, and each elastic descaling tooth is inclined. The inclination direction of the elastic descaling teeth in each elastic descaling mechanism 21 is the same as or opposite to the conveying direction of the spiral channel 18. The inclination direction of the elastic descaling teeth in adjacent elastic descaling mechanisms 21 is opposite.

[0053] Furthermore, in the descaling roller group 4 rotatably connected to both ends of the descaling cylinder 2, apart from the two descaling rollers 5 at opposite positions of the bottom opening of the fish discharge pipe 17, each pair of descaling rollers 5 is provided with an arc-shaped support mesh plate 24. Each of the arc-shaped support mesh plates 24 is located on the same circumference. A spray pipe 22 is also fixedly provided on the top wall of the descaling cylinder 2. The descaling cylinder 2 is inclined, and the end of the descaling cylinder 2 near the fish inlet 3 is higher than the end near the fish outlet 20.

[0054] The working principle of this invention is as follows: When the fish to be processed enters the descaling cylinder 2 from the fish inlet 3, the growth direction of the fish scales matches the rotation direction of the descaling roller 5, and falls between the two sets of descaling roller groups 4. At this time, during the relative rotation of each descaling roller 5 in the two sets of descaling roller groups 4, the elastic descaling mechanism 6 is driven to perform descaling operations from both sides of the fish body. Since the elastic descaling mechanism 6 has a certain elasticity, it can closely adhere to the fish body and ensure that fish of different sizes can obtain the best descaling effect, thereby greatly reducing the risk of damage to the fish surface caused by excessive squeezing during the descaling process. Secondly, since the fish enters the descaling cylinder 2... The growth direction of the fish scales matches the rotation direction of the descaling roller 5, and each descaling roller 5 in the two sets of descaling roller groups 4 is equally spaced on the circumference concentric with the descaling cylinder 2. Therefore, when each descaling roller 5 in the two sets of descaling roller groups 4 drives the elastic descaling mechanism 6 to rotate, the fish will move along the annular channel between the two sets of descaling roller groups 4. Therefore, there is no need to control the direction of the fish head and tail when the fish enters the descaling cylinder 2 from the fish inlet 3. The elastic descaling mechanism 6 can cut into the gap between the scales against the natural growth direction of the fish scales and lift and pop the scales out, so that the fish scales are quickly separated from the fish body, thereby achieving a highly efficient descaling effect.

[0055] After the fish enters the descaling cylinder 2, its movement is guided by the spiral channel 18 within the cylinder. This allows the fish, which enters from the bottom of the fish discharge pipe 17 between the two sets of descaling rollers 4, to reach the fish outlet 20 in a spiral motion. This not only increases the movement path of the fish during the descaling process, ensuring thorough scale removal and further improving the descaling effect, but also increases the space utilization of the descaling cylinder 2, allowing multiple fish to be processed simultaneously. This accelerates the entire descaling process and improves the overall efficiency of the production line. During the movement of the fish in the spiral channel 18, the belly and back of the fish will interact with the sides of the spiral channel 18. The elastic descaling mechanism 21 on the wall contacts the fish. The elastic descaling teeth in the elastic descaling mechanism 21 remove the scales on the fish's belly or back, further ensuring that the scales are fully removed. The descaling teeth are tilted to facilitate cutting into the gaps between the scales, thus removing scales efficiently. The opposite tilting directions of the elastic descaling teeth in adjacent elastic descaling mechanisms 21 are to accommodate fish with different head and tail orientations, ensuring effective descaling as they pass through the spiral channel 18. The elastic descaling teeth are made of highly elastic material, ensuring that the scales are effectively scraped off during the descaling process without damaging the fish's surface, thus extending the service life of the equipment.

Claims

1. A descaling mechanism for fish processing, characterized in that: The system includes a descaling cylinder (2) fixedly connected to a support frame (1). The descaling cylinder (2) has a fish inlet (3) and a fish outlet (20). The fish inlet (3) is matched with the width of the fish. The descaling cylinder (2) has two sets of descaling roller groups (4). Each set of descaling roller groups (4) includes multiple descaling rollers (5). The axes of each descaling roller (5) in the two sets of descaling roller groups (4) are parallel to the axis of the descaling cylinder (2). Each descaling roller (5) in the two sets of descaling roller groups (4) is equally spaced on a circle concentric with the descaling cylinder (2). The number and position of each descaling roller (5) in the two sets of descaling roller groups (4) correspond one-to-one. The two corresponding descaling rollers (5) in the two sets of descaling roller groups (4) rotate relative to each other. The surface of each descaling roller (5) in the two sets of descaling roller groups (4) is provided with multiple sets of elastic descaling mechanisms (6) for removing fish scales. Above the fish inlet (3) is a fish hopper (16) for accommodating fish to be processed. The bottom of the fish hopper (16) is provided with a row of fish pipes (17). The diameter of the fish pipes (17) matches the width of the fish. The bottom opening of the fish pipes (17) is located on the top side of the descaling cylinder (2) and is opposite to the two adjacent descaling rollers (5) in the descaling roller group (4) away from the center of the descaling cylinder (2). The descaling cylinder (2) is also provided with a spiral channel (18). The spiral channel (18) is formed by two parallel spiral plates (19) and the inner wall of the descaling cylinder (2). The two ends of the two spiral plates (19) are fixedly connected to the two ends of the descaling cylinder (2). One end of the spiral channel (18) is opposite to the bottom opening of the fish discharge pipe (17), and the other end of the spiral channel (18) is opposite to the fish outlet (20). Each descaling roller (5) in the descaling roller group (4) that is rotatably connected to the two ends of the descaling cylinder (2) passes through the spiral plate (19) of the spiral channel (18) and is rotatably connected to the spiral plate (19) of the spiral channel.

2. The descaling mechanism for fish processing according to claim 1, characterized in that: The descaling cylinder (2) is provided with turntable one (7) and turntable two (8) at both ends respectively. Turntable one (7) and turntable two (8) are rotatably connected to both ends of the descaling cylinder (2) through a central shaft (9). One end of the central shaft (9) is connected to a drive motor (10) fixed on a support frame (1). The two ends of each descaling roller (5) in the descaling roller group (4) away from the center of the descaling cylinder (2) are rotatably connected to both ends of the descaling cylinder (2). The two ends of each descaling roller (5) in the descaling roller group (4) close to the center of the descaling cylinder (2) are rotatably connected to turntable one (7) and turntable two (8) respectively.

3. The descaling mechanism for fish processing according to claim 2, characterized in that: One end of the central shaft (9) is fixedly provided with a drive gear (11), and one end of each descaling roller (5) in the descaling roller group (4) which is rotatably connected to both ends of the descaling cylinder (2) is provided with a driven gear (12), and each driven gear (12) meshes with the drive gear (11).

4. A descaling mechanism for fish processing according to claim 3, characterized in that: Each descaling roller (5) in the descaling roller group (4) rotatably connected to both ends of the descaling cylinder (2) is also provided with a driven gear two (13) at one end. Each descaling roller (5) in the descaling roller group (4) rotatably connected to the turntable one (7) and the turntable two (8) is provided with a driven gear three (23) at the same end as the driven gear two (13). The driven gear three (23) meshes with or separates from the driven gear two (13) when the turntable one (7) and the turntable two (8) rotate.

5. A descaling mechanism for fish processing according to claim 1, characterized in that: Each set of elastic descaling mechanism (6) includes multiple elastic descaling elements (14). Each elastic descaling element (14) in each set of elastic descaling mechanism (6) is evenly distributed on the same circumference on the outer wall of the descaling roller (5). One end of each elastic descaling element (14) is fixed on the outer wall of the descaling roller (5), and the other end extends along the tangent direction of the descaling roller (5). The extension direction of each elastic descaling element (14) is opposite to the rotation direction of the descaling roller (5).

6. A descaling mechanism for fish processing according to claim 5, characterized in that: One end of the elastic descaling component (14) is detachably connected to the descaling roller (5) by bolts, and the other end of the elastic descaling component (14) is also provided with a bending part (15), which extends away from the descaling roller (5).

7. A descaling mechanism for fish processing according to claim 1, characterized in that: On the opposite side wall of the two spiral plates (19) of the spiral channel (18), there are multiple sets of elastic descaling mechanisms (21) for removing scales from the belly or back of the fish. Each elastic descaling mechanism (21) includes multiple elastic descaling teeth. Each elastic descaling tooth is inclined. The inclination direction of the elastic descaling teeth in each elastic descaling mechanism (21) is the same as or opposite to the conveying direction of the spiral channel (18). The inclination direction of the elastic descaling teeth in adjacent elastic descaling mechanisms (21) is opposite.

8. A descaling mechanism for fish processing according to claim 7, characterized in that: In the descaling roller group (4) rotatably connected to both ends of the descaling cylinder (2), except for the two descaling rollers (5) at opposite positions of the bottom opening of the fish discharge pipe (17), each pair of the descaling rollers (5) is provided with an arc-shaped support mesh plate (24). Each of the arc-shaped support mesh plates (24) is located on the same circumference. A spray pipe (22) is also fixed on the top wall of the descaling cylinder (2). The descaling cylinder (2) is set at an inclination. The end of the descaling cylinder (2) near the fish inlet (3) is higher than the end near the fish outlet (20).

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