Scaling mechanism for fish treatment

Abstract

The invention relates to the technical field of fish treatment, and discloses a scaling mechanism for fish treatment, which comprises a scaling cylinder fixedly connected with a support frame, the scaling cylinder is provided with a fish inlet and a fish outlet, the fish inlet is matched with the width of fish, two scaling roller groups are arranged in the scaling cylinder, and the scaling roller groups are arranged on the support frame. The two scaling roller sets each comprise a plurality of scaling rollers, the axes of the scaling rollers in the two scaling roller sets are parallel to the axis of the scaling cylinder, the scaling rollers in the two scaling roller sets are distributed on the circumference concentric with the scaling cylinder at equal intervals, and the number and the position of the scaling rollers in the two scaling roller sets correspond to those of the scaling rollers. The two corresponding scaling rollers in the two scaling roller sets rotate relatively, and the surfaces of the scaling rollers in the two scaling roller sets are each provided with a plurality of first elastic scaling mechanisms used for removing scales of fish bodies. The problems that in the scaling process of existing equipment, fish bodies are damaged, the scaling effect is poor, and scaling is insufficient can be effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of fish processing, and particularly to a descaling mechanism for fish processing. Background Art

[0002] The process of slaughtering and processing fish has been plaguing the entire industry. Traditional slaughtering methods mainly rely on manual labor, which not only has a high labor intensity and low work efficiency, but also poses certain safety hazards. With the rapid development of technology, automation technology has been widely applied in various industries, significantly improving production efficiency and quality. However, in the field of fish slaughtering and processing, the application of automation technology is still relatively lagging. Although there are some automated devices related to eel processing on the market, they often have a single function, are difficult to achieve full-process automation of slaughtering and processing, and have high requirements for the size and shape of fish, unable to meet the diverse and large-scale production needs.

[0003] The invention patent with the application publication number CN117296905A discloses a descaling and slaughtering system. The present invention relates to the technical field of fish scale slaughtering, and discloses a descaling and slaughtering system, including a frame, a lifting conveyor belt, a descaling mechanism, a conveying mechanism, an orienting mechanism, and a slaughtering mechanism sequentially arranged on the frame. The descaling mechanism is arranged at the end of the lifting conveyor belt. The descaling mechanism includes a descaling frame, a descaling bin, descaling rollers, and a conveying auger. The descaling bin is arranged on the descaling frame. The conveying auger is rotatably connected in the descaling bin. The descaling rollers are arranged in two groups, and the two groups of descaling rollers are rotatably connected in the descaling bin. Brushes are arranged on the descaling rollers. A driving motor one and a driving motor two are arranged on the descaling bin. The driving motor one drives the conveying auger to rotate. A driving member is arranged at the end of the descaling roller. The driving motor one drives the driving member to drive the descaling roller to rotate. Poking rods are axially arranged on the conveying auger, which can realize the automatic descaling and slaughtering process. The descaling mechanism in this device drives the fish to axially move in the descaling bin through the conveying auger, and at the same time, the brushes on the descaling rollers are used to descale the moving fish;

[0004] However, since fish scales are generally in a state of being overlapped layer by layer in a tile shape and attached tightly to the fish body surface in a certain growth order, especially for different fish species (such as crucian carp, grass carp, etc.), there are significant differences in scale size, hardness, and adhesion. The above-mentioned brush-type descaling mechanism only removes scales through mechanical friction, not only is it difficult to completely remove stubborn scales, but also easily causes damage to the fish body surface. In addition, when the brush descales, it only contacts the two sides of the fish body, and the contact area is small, resulting in difficulty in descaling the back and abdomen of the fish, which urgently needs to be improved. Summary of the Invention

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

[0006] The above technical object of the present invention is achieved by the following technical solutions:

[0007] A descaling mechanism for fish processing includes a descaling cylinder fixedly connected to a support frame. The descaling cylinder is provided with a fish inlet and a fish outlet. The fish inlet is matched with the width dimension of the fish. Two groups of descaling roller sets are arranged in the descaling cylinder. Each group of descaling roller sets includes a plurality of descaling rollers. The axes of the descaling rollers in the two groups of descaling roller sets are all parallel to the axis of the descaling cylinder. The descaling rollers in each of the two groups of descaling roller sets are respectively equidistantly distributed on a circumference concentric with the descaling cylinder. The number and positions of the descaling rollers in the two groups of descaling roller sets correspond one by one, and the two corresponding descaling rollers in the two groups of descaling roller sets rotate relatively. A plurality of sets of elastic descaling mechanisms I for removing the scales of the fish body are arranged on the surfaces of the descaling rollers in each of the two groups of descaling roller sets.

[0008] By adopting the above technical solutions, the fish inlet is matched with the width dimension of the fish, so that when the fish enters the descaling cylinder from the fish inlet, the growth direction of the fish scales is matched with the rotation direction of the descaling rollers, and it falls between the two groups of descaling roller sets. At this time, during the relative rotation of the descaling rollers in the two groups of descaling roller sets, the elastic descaling mechanisms I are respectively driven to perform descaling operations from both sides of the fish body. Since the elastic descaling mechanism I has a certain elasticity, it can closely adhere to the fish body and ensure that the best descaling effect can be obtained for fish of different body types, thus greatly reducing the risk of fish body surface damage caused by excessive extrusion during the descaling process. Secondly, since the growth direction of the fish scales is matched with the rotation direction of the descaling rollers when the fish enters the descaling cylinder, and the descaling rollers in each of the two groups of descaling roller sets are respectively equidistantly distributed on a circumference concentric with the descaling cylinder, when the descaling rollers in each of the two groups of descaling roller sets drive the elastic descaling mechanisms I to rotate respectively, the fish will move along the annular channel between the two groups of descaling roller sets. Therefore, there is no need to control the directions of the fish head and fish tail when the fish enters the descaling cylinder from the fish inlet, and the elastic descaling mechanism I can cut into the scale gaps against the natural growth direction of the fish scales, lift and eject the scales, so that the fish scales are quickly separated from the fish body, thus achieving the effect of efficient descaling.

[0009] The further setting of the present invention is that a turntable I and a turntable II are respectively arranged at both ends of the descaling cylinder. The turntable I and the turntable II are respectively rotationally connected to both ends of the descaling cylinder through a central shaft. One end of the central shaft is connected to a driving motor fixed on the support frame. Both ends of the descaling rollers in the descaling roller set far from the center of the descaling cylinder are respectively rotationally connected to both ends of the descaling cylinder. Both ends of the descaling rollers in the descaling roller set close to the center of the descaling cylinder are respectively rotationally connected to the turntable I and the turntable II.

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

[0011] A further setting of the present invention is that a driven gear two is also provided at one end of each descaling roller in the descaling roller group rotatably connected to both ends of the descaling cylinder, and a driven gear three is provided at the same end of each descaling roller in the descaling roller group rotatably connected to the first turntable and the second turntable, which is the same as the driven gear two. When the driven gear three rotates with the first turntable and the second turntable, it meshes with or disengages from the driven gear two.

[0012] By adopting the above technical solution, after the driving motor is started, it drives the central shaft to rotate. When the central shaft rotates, it drives the first turntable and the second turntable to rotate synchronously. When the first turntable and the second turntable rotate synchronously, it drives each descaling roller in the descaling roller group close to the center of the descaling cylinder to revolve around the central shaft. When each descaling roller in the descaling roller group close to the center of the descaling cylinder revolves around the central shaft, the driven gear three fixed to the other end thereof meshes with or disengages from the driven gear two. At the same time as the central shaft rotates, it also drives the driving gear to rotate synchronously. When the driving gear rotates, it drives each driven gear one meshing with it to rotate. When the driven gear one rotates, it drives each descaling roller in the descaling roller group far from the center of the descaling cylinder fixedly connected to it to rotate. Thus, it drives the driven gear two fixedly connected to the other end of each descaling roller in the descaling roller group far 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 close to the center of the descaling cylinder fixedly connected to it to rotate, ensuring that when the driven gear three meshes with the driven gear two, the descaling rollers in the two groups of descaling roller groups close to and far from the center of the descaling cylinder can rotate relatively when they are opposite to each other. Thus, it ensures that the descaling rollers in the two groups of descaling roller groups can drive the first elastic descaling mechanism to perform descaling operations from both sides of the fish body respectively.

[0013] A further setting of the present invention is that each group of the first elastic descaling mechanisms includes a plurality of elastic descaling members. Each elastic descaling member in each group of the first elastic descaling mechanisms is evenly distributed on the same circumference of the outer wall of the descaling roller. One end of each elastic descaling member is fixed on the outer wall of the descaling roller, and the other end extends along the tangent direction of the descaling roller. The extending directions of all the elastic descaling members are opposite to the rotation direction of the descaling roller.

[0014] A further setting of the present invention is that one end of the elastic descaling member is detachably connected to the descaling roller through a bolt, and a bending portion is further provided at the other end of the elastic descaling member. The bending portion extends towards the side away from the descaling roller.

[0015] By adopting the above technical solution, each elastic descaling member in each group of elastic descaling mechanisms can be rotated with the descaling roller fixedly connected thereto, and the bent portion at the other end thereof can abut against the side wall of the fish body and gradually cut into the scale gap against the natural growth direction of the fish scales. As the descaling roller continues to rotate, the bent portion causes the elastic descaling member to deform and accumulate elastic force under the action of the fish scale resistance. When the bent portion lifts the remaining force until the fish scales are separated from the fish body, the elastic descaling member ejects the fish scales under the action of the rebounding force, avoiding the adhesion of the fish scales to the bent portion and affecting the next descaling operation, ensuring the effect of efficient descaling, reducing the wear of the fish scales on the descaling roller, prolonging the service life of the equipment, and the bent portion is ingeniously designed, which can not only effectively remove the scales, but also avoid damaging the fish body and improve the descaling efficiency.

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

[0017] By adopting the above technical solution, the diameter of the fish pipes matches the width size of the fish and the bottom opening of the fish pipes is located on one side of the descaling cylinder, ensuring that the fish entering the descaling cylinder from the fish inlet naturally falls into the descaling channel formed between the two groups of descaling roller groups and the growth direction of the fish scales matches the rotation direction of the descaling rollers, ensuring that the elastic descaling mechanism on the descaling rollers can descale efficiently.

[0018] The further setting of the present invention is that: a spiral channel is further provided in the descaling cylinder, the spiral channel is surrounded by two parallel spiral plates and 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 pipes, the other end of the spiral channel is opposite to the fish outlet, and each descaling roller in the descaling roller group rotatably connected to the two ends of the descaling cylinder respectively penetrates through the spiral plates of the spiral channel and is rotatably connected to the spiral plates 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 groups of descaling roller groups from the bottom of the fish pipes can reach the fish outlet in a spiral movement manner, not only increasing the movement path of the fish during the descaling process, enabling the fish scales to be fully removed, further improving the descaling effect, but also improving the space utilization rate of the descaling cylinder, enabling multiple fish to be processed simultaneously, accelerating the entire descaling process, and improving the overall efficiency of the production line.

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

[0021] By adopting the above technical solution, during the movement of the fish in the spiral channel, the fish belly and fish back will contact 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 fish belly or fish back, further ensuring the full removal of the scales. The inclined setting of the descaling teeth is to facilitate cutting into the scale gaps, so as to efficiently remove the scales. The opposite inclination directions of the elastic descaling teeth in adjacent elastic descaling mechanisms II are to adapt to the fish with different head and tail directions to effectively remove the scales during the process of passing through the spiral channel. The elastic descaling teeth are made of high-elasticity materials to ensure that the scales can be effectively scraped off during the descaling process without damaging the surface of the fish body, and the service life of the equipment is extended.

[0022] A further setting of the present invention is that between each pair of descaling rollers in the descaling roller group rotatably connected to both ends of the descaling cylinder, except for the two descaling cylinders at the bottom opening of the fish discharging pipe, arc-shaped supporting net plates are provided between them. Each of the arc-shaped supporting net 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 close to the fish inlet is higher than the end close to the fish outlet.

[0023] By adopting the above technical solution, the arc-shaped supporting net plates can effectively support the fish body to prevent the fish from slipping between adjacent two descaling rollers during the descaling process, ensuring the smooth passage of the fish body through the descaling roller group. At the same time, the setting of the spray pipe can timely wash away the fallen scales, keep the inside of the descaling cylinder clean, and ensure the thorough removal of the scales. The end of the descaling cylinder close to the fish inlet is higher than the end close to the fish outlet, making the entire spiral channel present a natural inclination angle, ensuring that the fish is more likely to slide from the end of the spiral channel close to the fish inlet to the end close to the fish outlet under the action of its own gravity, further optimizing the descaling efficiency. At the same time, the spray pipe sprays and cleans the fish, the descaling roller group and the spiral channel during the descaling process, and can also make the fish body more slippery and clean, facilitating further full descaling and forward sliding. The fish scales are washed away and discharged from the mesh holes of the arc-shaped supporting net plates, which can not only avoid blockage, ensure the smooth operation of the entire descaling system, but also facilitate the smooth discharge of the descaled fish from the descaling cylinder and the centralized collection of the scales, facilitating subsequent processing and cleaning work.

[0024] The beneficial effects of the present invention are:

[0025] 1. In the present invention, the fish inlet matches the width dimension of the fish, so that when the fish enters the descaling cylinder from the fish inlet, the growth direction of the fish scales is matched with the rotation direction of the descaling rollers, and it falls between the two sets of descaling roller groups. At this time, during the relative rotation of the descaling rollers in the two sets of descaling roller groups, the elastic descaling mechanism I is respectively driven to perform descaling operations from both sides of the fish body. Since the elastic descaling mechanism I has a certain elastic force, it can closely adhere to the fish body and ensure that fish of different body types can obtain the best descaling effect, thus greatly reducing the risk of damage to the fish body surface caused by excessive extrusion during the descaling process. Secondly, since the growth direction of the fish scales is matched with the rotation direction of the descaling rollers when the fish enters the descaling cylinder, and the descaling rollers in each of the two sets of descaling roller groups are evenly distributed on the circumference concentric with the descaling cylinder at equal intervals respectively, when the descaling rollers in the two sets of descaling roller groups respectively drive the elastic descaling mechanism I to rotate, the fish will move along the annular channel between the two sets of descaling roller groups. Therefore, there is no need to control the directions of the fish head and fish tail when the fish enters the descaling cylinder from the fish inlet, and the elastic descaling mechanism I can cut into the scale gaps against the natural growth direction of the fish scales, lift the scales and eject them, so that the fish scales are quickly separated from the fish body, thus achieving the effect of efficient descaling.

[0026] 2. In each elastic descaling mechanism I of the present invention, when each elastic descaling member rotates with the descaling roller fixedly connected to it, the bent portion at the other end can abut against the side wall of the fish body and gradually cut into the scale gaps against the natural growth direction of the fish scales. As the descaling roller continues to rotate, the bent portion causes the elastic descaling member to deform and accumulate elastic force under the action of the fish scale resistance. When the bent portion lifts the fish scale until it is separated from the fish body, the elastic descaling member ejects the fish scale under the action of the rebound force, preventing the fish scale from adhering to the bent portion and affecting the next descaling operation, ensuring the effect of efficient descaling, reducing the wear of the fish scales on the descaling rollers, and prolonging the service life of the equipment. The design of the bent portion is ingenious, which can not only effectively remove the scales, avoid damaging the fish body, but also improve the descaling efficiency.

[0027] 3. The spiral channel in the present invention is used to guide the movement of the fish, so that the fish entering between the two sets of descaling roller groups from the bottom of the fish discharge pipe can reach the fish outlet in a spiral movement manner. This not only increases the movement path of the fish during the descaling process, enables the fish scales to be fully removed, further improves the descaling effect, but also improves the space utilization rate of the descaling cylinder, enables multiple fish to be processed simultaneously, speeds up the entire descaling process, and improves the overall efficiency of the production line.

[0028] 4. In the present invention, the elastic descaling mechanism II on the side wall of the spiral channel comes into contact. The elastic descaling teeth in the elastic descaling mechanism II will remove the scales on the fish belly or fish back, further ensuring the thorough removal of scales. The descaling teeth are inclined to facilitate cutting into the gaps between the scales, so as to efficiently remove scales. The inclination directions of the elastic descaling teeth in adjacent elastic descaling mechanisms II are opposite to adapt to fish with different head and tail directions, enabling effective descaling during the process of passing through the spiral channel. The elastic descaling teeth are made of high-elasticity materials, ensuring that they can effectively scrape off the scales during descaling without damaging the fish body surface, thus extending the service life of the equipment.

[0029] 5. In the present invention, the arc-shaped support mesh plate can effectively hold the fish body, preventing the fish from slipping between two adjacent descaling rollers during the descaling process, ensuring the smooth passage of the fish body through the descaling roller group. At the same time, the setting of the spray pipe can timely wash away the fallen scales, keep the inside of the descaling cylinder clean, and ensure the thorough removal of scales. One end of the descaling cylinder close to the fish inlet is higher than the end close to the fish outlet, making the entire spiral channel have a natural inclination angle, ensuring that the fish is more likely to slide from the end of the spiral channel close to the fish inlet to the end close to the fish outlet under the action of its own gravity, further optimizing the descaling efficiency. At the same time, the spray pipe sprays and cleans the fish, the descaling roller group, and the spiral channel during the descaling process, and can also make the fish body more slippery and clean, facilitating further thorough descaling and forward sliding. The scales are washed away and discharged from the mesh holes of the arc-shaped support mesh plate, which can not only avoid blockage, ensure the smooth operation of the entire descaling system, but also facilitate the smooth discharge of the descaled fish from the descaling cylinder and the centralized collection of scales, facilitating subsequent processing and cleaning work. Brief Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following-described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

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

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

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

[0034] Figure 4 It is a schematic diagram of the movement path of the fish after entering the descaling cylinder with the head facing downwards.

[0035] Figure 5 It is a schematic diagram of the movement path of the fish after entering the descaling cylinder with the fish tail facing downwards.

[0036] Figure 6 It is a schematic diagram of the natural growth direction of the fish scales and the extension direction of the bent part of the elastic descaling member on the descaling roller on this side after the fish enters the descaling cylinder with the fish head facing downwards.

[0037] Figure 7 It is a schematic diagram of the natural growth direction of the fish scales and the extension direction of the bent part of the elastic descaling member on the descaling roller on this side when the fish moves to the other side of the descaling cylinder after entering the descaling cylinder with the fish head facing downwards.

[0038] Figure 8 It is a schematic diagram of the natural growth direction of the fish scales and the extension direction of the bent part of the elastic descaling member on the descaling roller on this side after the fish enters the descaling cylinder with the fish head facing upwards.

[0039] Figure 9 It is a schematic diagram of the natural growth direction of the fish scales and the extension direction of the bent part of the elastic descaling member on the descaling roller on this side when the fish moves to the other side of the descaling cylinder after entering the descaling cylinder with the fish head facing upwards.

[0040] Figure 10 Schematic diagram of the structure of the spiral channel in a descaling mechanism for fish processing according to the present invention.

[0041] Figure 11 It is a schematic diagram of the structure of the second elastic descaling mechanism on the two spiral plates in the spiral channel of a descaling mechanism for fish processing according to the invention.

[0042] In the figure, 1, support frame; 2, descaling cylinder; 3, fish inlet; 4, descaling roller group; 5, descaling roller; 6, first elastic descaling mechanism; 7, first turntable; 8, second turntable; 9, central shaft; 10, drive motor; 11, drive gear; 12, first driven gear; 13, second driven gear; 14, elastic descaling member; 15, bent part; 16, fish inlet hopper; 17, fish discharge pipe; 18, spiral channel; 19, spiral plate; 20, fish outlet; 21, second elastic descaling mechanism; 22, spray pipe; 23, third driven gear; 24, arc-shaped support mesh plate. Detailed implementation manners

[0043] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0044] Such as Figures 1 to 11As shown in the figure, 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 dimension of the fish. Two groups of descaling roller sets 4 are arranged inside the descaling cylinder 2. Each of the two groups of descaling roller sets 4 includes a plurality of descaling rollers 5. The axes of the descaling rollers 5 in each of the two groups of descaling roller sets 4 are parallel to the axis of the descaling cylinder 2. The descaling rollers 5 in each of the two groups of descaling roller sets 4 are respectively evenly distributed on a circumference concentric with the descaling cylinder 2. The number and positions of the descaling rollers 5 in each of the two groups of descaling roller sets 4 correspond one by one, and the two corresponding descaling rollers 5 in the two groups of descaling roller sets 4 rotate relatively. A plurality of sets of elastic descaling mechanisms one 6 for removing the scales on the fish body are arranged on the surfaces of the descaling rollers 5 in each of the two groups of descaling roller sets 4.

[0045] Furthermore, a turntable one 7 and a turntable two 8 are respectively arranged at both ends of the descaling cylinder 2. The turntable one 7 and the turntable two 8 are respectively rotationally 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 driving motor 10 fixed on the support frame 1. Both ends of the descaling rollers 5 in the descaling roller set 4 far from the center of the descaling cylinder 2 are respectively rotationally connected to both ends of the descaling cylinder 2. Both ends of the descaling rollers 5 in the descaling roller set 4 close to the center of the descaling cylinder 2 are respectively rotationally connected to the turntable one 7 and the turntable two 8.

[0046] Furthermore, a driving gear 11 is fixedly arranged at one end of the central shaft 9. One end of each of the descaling rollers 5 in the descaling roller set 4 rotationally connected to both ends of the descaling cylinder 2 is provided with a driven gear one 12. Each of the driven gears one 12 is meshed with the driving gear 11.

[0047] Furthermore, one end of each of the descaling rollers 5 in the descaling roller set 4 rotationally connected to both ends of the descaling cylinder 2 is also provided with a driven gear two 13. One end of each of the descaling rollers 5 in the descaling roller set 4 rotationally connected to the turntable one 7 and the turntable two 8, which is the same as the end with the driven gear two 13, is provided with a driven gear three 23. When the driven gear three 23 rotates with the turntable one 7 and the turntable two 8, it meshes with or disengages from the driven gear two 13.

[0048] Furthermore, each set of elastic descaling mechanisms one 6 includes a plurality of elastic descaling parts 14. The elastic descaling parts 14 in each set of elastic descaling mechanisms one 6 are evenly distributed on the same circumference on the outer wall of the descaling roller 5. One end of each of the elastic descaling parts 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 extending directions of the elastic descaling parts 14 are all opposite to the rotation direction of the descaling roller 5.

[0049] Furthermore, one end of the elastic descaling part 14 is detachably connected to the descaling roller 5 through a bolt. The other end of the elastic descaling part 14 is also provided with a bending part 15, and the bending part 15 extends towards the side away from the descaling roller 5.

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

[0051] Further, a spiral channel 18 is also provided in the descaling cylinder 2. The spiral channel 18 is formed by enclosing two parallel spiral plates 19 and the inner wall of the descaling cylinder 2. The two ends of the two spiral plates 19 are respectively 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 rotatably connected to the two ends of the descaling cylinder 2 respectively penetrates through the spiral plates 19 of the spiral channel 18 and is rotatably connected to the spiral plates 19 of the spiral channel.

[0052] Further, multiple groups of elastic descaling mechanisms two 21 for removing the scales on the fish belly or fish back are provided on the side walls of the two spiral plates 19 of the spiral channel 18 facing each other. Each elastic descaling mechanism two 21 includes a plurality of elastic descaling teeth. Each elastic descaling tooth is inclined. The inclination directions of the elastic descaling teeth in each elastic descaling mechanism two 21 are the same as or opposite to the conveying direction of the spiral channel 18, and the inclination directions of the elastic descaling teeth in adjacent elastic descaling mechanisms two 21 are opposite.

[0053] Further, arc-shaped support mesh plates 24 are provided between every two of the descaling rollers 5 in the descaling roller group 4 rotatably connected to the two ends of the descaling cylinder 2 except for the two descaling rollers 5 at the position opposite to the bottom opening of the fish discharge pipe 17. 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 close to the fish inlet 3 is higher than the end close to the fish outlet 20.

[0054] The working principle of the present 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 rollers 5, and the fish falls between the two sets of descaling roller groups 4. At this time, during the relative rotation of the descaling rollers 5 in the two sets of descaling roller groups 4, the elastic descaling mechanism I 6 is respectively driven to perform descaling operations from both sides of the fish body. Since the elastic descaling mechanism I 6 has a certain elastic force, it can closely adhere to the fish body and ensure that fish of different body types can obtain the best descaling effect, thus greatly reducing the risk of fish body surface damage caused by excessive extrusion during the descaling process. Secondly, since the growth direction of the fish scales matches the rotation direction of the descaling rollers 5 when the fish enters the descaling cylinder 2, and the descaling rollers 5 in each of the two sets of descaling roller groups 4 are evenly distributed on the circumference concentric with the descaling cylinder 2 at equal intervals, when the descaling rollers 5 in the two sets of descaling roller groups 4 respectively drive the elastic descaling mechanism I 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 directions of the fish head and fish tail when the fish enters the descaling cylinder 2 from the fish inlet 3, and the elastic descaling mechanism I 6 can cut into the scale gaps against the natural growth direction of the fish scales, lift and eject the scales, so that the fish scales are quickly separated from the fish body, thus achieving the effect of efficient descaling.

[0055] After the fish enters the descaling cylinder 2, the spiral channel 18 in the descaling cylinder 2 is used to guide the movement of the fish, so that the fish entering between the two sets of descaling roller groups 4 from the bottom of the fish discharge pipe 17 can reach the fish outlet 20 in a spiral motion. This not only increases the movement path of the fish during the descaling process, enables the fish scales to be fully removed, further improves the descaling effect, but also improves the space utilization rate of the descaling cylinder 2, enables multiple fish to be processed simultaneously, speeds up the entire descaling process, and enhances the overall efficiency of the production line. During the movement of the fish in the spiral channel 18, the fish belly and fish back will contact the elastic descaling mechanism II 21 on the side wall of the spiral channel 18, and the elastic descaling teeth in the elastic descaling mechanism II 21 will remove the fish scales on the fish belly or fish back, further ensuring the full removal of the fish scales. The descaling teeth are inclined to facilitate cutting into the scale gaps for efficient descaling. The inclination directions of the elastic descaling teeth in adjacent elastic descaling mechanisms II 21 are opposite to enable effective descaling of fish with different head and tail directions during the process of passing through the spiral channel 18. The elastic descaling teeth are made of high-elasticity materials to ensure that they can effectively scrape off the fish scales during the descaling process without damaging the fish body surface, thus extending the service life of the equipment.

Claims

1. A descaling mechanism for fish processing, characterized in that: The invention comprises a descaling cylinder (2) fixedly connected to a support frame (1), wherein the descaling cylinder (2) is provided with a fish inlet (3) and a fish outlet (20), wherein the fish inlet (3) matches the width of the fish, wherein two groups of descaling roller groups (4) are arranged inside the descaling cylinder (2), wherein the two groups of descaling roller groups (4) each comprise a plurality of descaling rollers (5), wherein the axes of the descaling rollers (5) in the two groups of descaling roller groups (4) are parallel to the axes of the descaling cylinder (2), wherein the descaling rollers (5) in the two groups of descaling roller groups (4) are evenly spaced and distributed on a circle concentric with the descaling cylinder (2), wherein the number and position of the descaling rollers (5) in the two groups of descaling roller groups (4) correspond to each other, and the two corresponding descaling rollers (5) in the two groups of descaling roller groups (4) rotate relative to each other, and wherein the surfaces of the descaling rollers (5) in the two groups of descaling roller groups (4) are provided with a plurality of groups of elastic descaling mechanisms (6) for removing fish scales.

2. A fish descaling device according to claim 1, characterized in that: A turntable 1 (7) and a turntable 2 (8) are respectively provided at both ends of the descaling cylinder (2); the turntable 1 (7) and the turntable 2 (8) are respectively rotatably connected to the two ends of the descaling cylinder (2) via a central shaft (9); one end of the central shaft (9) is connected to a driving motor (10) fixed on a support frame (1); the two ends of each descaling roller (5) in a descaling roller group (4) away from the center of the descaling cylinder (2) are respectively rotatably connected to the two ends of the descaling cylinder (2); and the two ends of each descaling roller (5) in a descaling roller group (4) close to the center of the descaling cylinder (2) are respectively rotatably connected to the turntable 1 (7) and the turntable 2 (8).

3. A descaling mechanism for fish processing according to claim 2, characterized in that: A driving gear (11) is fixedly provided at one end of the central shaft (9), and each descaling roller (5) in the descaling roller group (4) rotatably connected to the two ends of the descaling cylinder (2) is provided with a driven gear (12) at one end, and each driven gear (12) is respectively meshed with the driving gear (11).

4. A descaling mechanism for fish processing according to claim 3, characterized in that: One end of each descaling roller (5) in a descaling roller group (4) rotatably connected to both ends of the descaling cylinder (2) is also provided with a driven gear 2 (13); and one end of each descaling roller (5) in a descaling roller group (4) rotatably connected to the first rotating disk (7) and the second rotating disk (8) is provided with a driven gear 3 (23) at the same end as the driven gear 2 (13); the driven gear 3 (23) meshes with or disengages from the driven gear 2 (13) when the first rotating disk (7) and the second rotating disk (8) rotate.

5. The descaling mechanism for fish processing according to claim 1, characterized in that: Each set of elastic descaling mechanisms (6) comprises a plurality of elastic descaling members (14); the elastic descaling members (14) in each set of elastic descaling mechanisms (6) are evenly distributed on the same circumference on the outer wall of the descaling roller (5); one end of each elastic descaling member (14) is fixed on the outer wall of the descaling roller (5); the other end extends along the tangent direction of the descaling roller (5); and the extension direction of each elastic descaling member (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 member (14) is detachably connected to the descaling roller (5) via a bolt, and the other end of the elastic descaling member (14) is also provided with a bending portion (15), and the bending portion (15) extends to a side away from the descaling roller (5).

7. The descaling mechanism for fish processing according to claim 1, characterized in that: A fish inlet hopper (16) for accommodating the fish to be processed is fixedly provided above the fish inlet (3); a row of fish tubes (17) is provided at the bottom of the fish inlet hopper (16); the diameter of the row of fish tubes (17) matches the width of the fish; the bottom opening of the row of fish tubes (17) is located on one side of the top of the descaling cylinder (2) and is opposite to two adjacent descaling rollers (5) in the descaling roller group (4) far away from the center of the descaling cylinder (2).

8. The descaling mechanism for fish processing according to claim 7, characterized in that: A spiral channel (18) is also provided in the descaling cylinder (2). 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 spiral plates (19) are respectively 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 tube (17), and the other end of the spiral channel (18) is opposite to the fish outlet (20). The descaling rollers (5) in the descaling roller group (4) rotatably connected to the two ends of the descaling cylinder (2) respectively penetrate the spiral plates (19) of the spiral channel (18) and are rotatably connected to the spiral plates (19) of the spiral channel.

9. A fish descaling device according to claim 8, characterized in that: A plurality of sets of elastic descaling mechanisms (21) for removing scales from the belly or back of a fish are arranged on the side walls of the two spiral plates (19) on the opposite side of the spiral channel (18), each elastic descaling mechanism (21) comprises a plurality of elastic descaling teeth, each elastic descaling tooth is arranged obliquely, the inclination direction of the elastic descaling teeth in each elastic descaling mechanism (21) is respectively the same as or opposite to the conveying direction of the spiral channel (18), and the inclination directions of the elastic descaling teeth in adjacent elastic descaling mechanisms (21) are opposite.

10. A fish descaling device according to claim 9, characterized in that: Except for the two descaling cylinders (2) at the bottom opening of the fish discharge tube (17), each descaling roller (5) in the descaling roller group (4) rotatably connected to the two ends of the descaling cylinder (2) is provided with an arc-shaped supporting mesh plate (24) between each other, and each of the arc-shaped supporting 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 arranged obliquely, and the end of the descaling cylinder (2) close to the fish inlet (3) is higher than the end of the descaling cylinder (2) close to the fish outlet (20).

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