Automatic fish scale removing and fish killing device
By moving the descaling device on the retaining frame and adjusting its size using a drive motor and a parallel four-bar linkage, the problem of existing equipment being unable to adapt to fish of different sizes is solved, achieving efficient and safe descaling operations.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-03-24
AI Technical Summary
Existing fish descaling equipment cannot adapt to fish of different sizes, resulting in low processing efficiency and safety risks.
An automatic fish descaling and cleaning device is designed. The descaling device is movable on the retaining frame. The opening and closing size of the descaling device is adjusted by a drive motor and a parallel four-bar linkage, so that it can fit the fish body of different sizes and shapes for descaling. Efficient descaling is achieved through multiple drive devices and scraper structure.
It enables efficient descaling of fish of different sizes, reduces repetitive manual labor, improves processing efficiency, and reduces the risk of hand injuries.
Smart Images

Figure CN224022772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to fish processing equipment, and more specifically, to an automatic fish scaling and killing device. Background Technology
[0002] Currently, fish processing mainly relies on manual labor, which is repetitive and physically demanding, making it difficult to meet the needs of large-scale aquatic product processing. Furthermore, there is a risk of hand injuries from the knives used during operation. To improve work efficiency, auxiliary equipment has been designed for fish scaling, but it can only be used on fish of the same size. It cannot be used on fish of different sizes, or the scraper mold needs to be changed to accommodate different sizes of fish. This equipment has low applicability and cannot meet the needs of efficient scaling of fish of different sizes.
[0003] Utility model CN20084017U discloses a fish descaling device. The device includes a fish-body stabilizing conveyor mechanism, a device for descaling the sides of the fish, a device for descaling the back of the fish, and a device for descaling the belly of the fish, arranged sequentially. The device for descaling the sides of the fish consists of one or more pairs of side descaling rollers, a transmission mechanism, and a first rotary motor. The device for descaling the back of the fish consists of a belly-holding stabilizing conveyor mechanism, a back descaling roller, a back descaling roller support arm, a transmission mechanism, and a second rotary motor. The device for descaling the belly of the fish consists of a back-holding stabilizing conveyor mechanism, a belly descaling roller, a belly descaling roller support arm, a transmission mechanism, and a third rotary motor. This fish descaling device is only suitable for fish species with flat bodies and cannot descale fish with significant differences in body size. Utility Model Content
[0004] This invention provides an automatic fish scaling and killing device to solve the problem of descaling fish of different sizes.
[0005] The technical solution adopted in this utility model is:
[0006] An automatic fish scaling and killing device includes a retaining frame and a fish scaling device. The retaining frame includes an upper retaining frame and a lower retaining frame. The upper retaining frame is equipped with a drive motor, which is connected to an upper parallel four-bar linkage. The upper parallel four-bar linkage is connected to one end of an upper connecting rod fitted with a spring, and the other end of the upper connecting rod is slidably connected to the retaining frame. The lower retaining frame includes a lower parallel four-bar linkage and a lower connecting rod fitted with a spring. One end of the lower connecting rod is connected to the lower parallel four-bar linkage, and the other end is slidably connected to the retaining frame. The fish scaling device is installed on the upper and lower connecting rods. The retaining frame also has a fish guide channel fixedly installed. The fish scaling device is symmetrically arranged on both sides of the fish guide channel and includes a fixed bracket and a second drive motor mounted on the fixed bracket. The fixed bracket is sequentially connected to a side fish scaling device, a first drive device, an upper and lower fish scaling device, and a second drive device via bearings. The second drive motor is connected to the fish scaling device, the first drive device, the upper and lower fish scaling device, and the second drive device via flexible transmission.
[0007] Furthermore, the side descaling device includes a side descaling connecting roller and a plurality of descaling blades fixedly distributed along the axial direction of the side descaling connecting roller.
[0008] Furthermore, the fish-scale removal blade includes a mounting sleeve and multiple fish-scale removal teeth. The fish-scale removal teeth are movably connected to the mounting sleeve via a rotating shaft. The fish-scale removal teeth are curved and have a serrated structure along the curvature direction.
[0009] Furthermore, the upper and lower fish scale removal device includes an upper fish scale scraper disc, a lower fish scale scraper disc, an upper and lower fish scale connecting frame truss, and upper and lower fish scale scraper drive shafts. The upper and lower fish scale scraper discs are slidably connected to the upper and lower fish scale scraper drive shafts through a U-shaped groove. The upper and lower fish scale connecting frame truss is equipped with a guide rail and an up-and-down adjustment motor. The upper and lower fish scale scraper discs are slidably connected in the guide rail. The up-and-down adjustment motor is connected to the upper and lower fish scale scraper discs after being connected to the threaded drive shaft.
[0010] Furthermore, the upper fish scale scraper disc includes an upper fish scale corner device and a scraper disc, and a spring is connected between the output shaft of the corner device and the scraper disc.
[0011] The first driving device includes a drive shaft and a plurality of forward gears fixedly distributed along the axial direction of the drive shaft. The drive shaft is connected to a drive motor by two belts.
[0012] Furthermore, a cutting device is also provided after the second driving device. The cutting device includes an upper rod and a lower rod, which are meshed by gears. The upper rod is provided with a counterweight, and the lower rod is provided with a third drive motor, which drives the saw blade to rotate.
[0013] Furthermore, an upper fish guide channel is provided above both ends of the fish guide channel, and a retainer is provided in the upper fish guide channel. The retainer is connected to the retaining frame by a spring.
[0014] Furthermore, a spray pipe is also provided on the retaining frame.
[0015] Furthermore, the fish guide channel includes a front fish guide channel and a rear fish guide channel. The front fish guide channel has an arc-shaped groove at the position of the fish scale removal device and the first driving device on the side, and the rear fish guide channel has an arc-shaped groove at the position of the second driving device.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] This invention movably mounts the fish scaler on the retaining frame. The opening and closing size of the fish scaler can be adjusted under the control of the drive motor and the upper parallel four-bar linkage mechanism, so that the fish scaler can fit the fish body of different sizes and shapes to perform fish scaler operations. Attached Figure Description
[0018] Figure 1 A schematic diagram of the overall structure of an automatic fish scaling and cleaning device;
[0019] Figure 2 A schematic diagram of the upper frame structure;
[0020] Figure 3 A schematic diagram showing the lower end retaining the frame structure;
[0021] Figure 4 This is a schematic diagram of the fish scale removal device.
[0022] Figure 5 This is a schematic diagram of the side-mounted fish scale removal device.
[0023] Figure 6 This is a schematic diagram of the first drive unit.
[0024] Figure 7 This is a schematic diagram of the upper and lower fish scale removal device.
[0025] Figure 8 Schematic diagram of the drive shaft transmission for the upper and lower fish scale scrapers;
[0026] Figure 9 This is a schematic diagram of the up-and-down adjustment motor drive;
[0027] Figure 10 This is a schematic diagram of the second drive unit.
[0028] Figure 11 This is a schematic diagram of the fish guide channel structure;
[0029] Figure 12This is a schematic diagram of the rupture device in Example 2;
[0030] Figure 13 This is a schematic diagram of the spray pipe in Example 3;
[0031] The components include: 1. Holding frame; 11. Drive motor one; 12. Upper parallel four-bar linkage; 13. Upper connecting rod; 14. Lower parallel four-bar linkage; 15. Lower connecting rod; 16. Spray pipe; 2. Fish scale removal device; 21. Fixed bracket; 22. Drive motor two; 211. Connecting hole; 23. Side fish scale removal device; 231. Side fish scale removal connecting roller; 232. Fish scale removal roller drive wheel; 233. First drive device drive wheel; 234. Mounting sleeve; 235. Rotating shaft; 236. Fish scale removal teeth; 24. First drive device; 241. Drive shaft; 242. Forward gear plate; 243. Drive shaft forward driven wheel; 244. Upper and lower fish scale removal device drive drive wheel; 245. Second drive device drive wheel; 2 5. Upper and lower fish scale removal device; 250. Output screw; 251. Upper fish scale scraper disc; 252. Lower fish scale scraper disc; 253. Upper and lower fish scale connecting frame truss; 254. Upper and lower fish scale scraper drive shaft; 255. Upper and lower fish scale scraper driven wheel; 256. Guide rail; 257. U-shaped slide; 258. Pin; 259. Thread; 2511. Upper and lower adjustment motor; 2512. Angle device; 2513. Scraper disc; 26. Second drive device; 261. Second drive device driven wheel; 27. Belly breaking device; 271. Upper rod; 272. Lower rod; 273. Counterweight; 274. Gear; 275. Drive motor three; 276. Saw blade; 3. Fish guide channel; 31. Front fish guide channel; 32. Rear fish guide channel. Detailed Implementation
[0032] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise explicitly specified and limited, "on" or "below" a second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
[0033] Example 1
[0034] Please see Figures 1 to 11 One embodiment provided by this utility model:
[0035] An automatic fish scaling and cleaning device includes a retaining frame 1 and a fish scaling device 2. The retaining frame 1 includes an upper retaining frame and a lower retaining frame. The upper retaining frame is equipped with a drive motor 11, which is connected to an upper parallel four-bar linkage 12. The upper parallel four-bar linkage 12 is connected to one end of an upper connecting rod 13 fitted with a spring, and the other end of the upper connecting rod 13 is slidably connected to the retaining frame 1. The lower retaining frame includes a lower parallel four-bar linkage 14 and a lower connecting rod 15 fitted with a spring. One end of the lower connecting rod 15 is connected to the lower parallel four-bar linkage 14, and the other end is slidably connected to the retaining frame 1. The fish scaling device 2 is installed on the upper and lower connecting rods. The fish scaling device is fitted on the upper connecting rod 13 and the lower connecting rod 15 and can slide relative to each other on the connecting rods. When the fish scaling device is in contact with the fish body, the springs of the upper and lower connecting rods can provide force acting on the fish body and at the same time provide a cushioning effect to avoid damaging the fish meat.
[0036] The retaining frame is also fixedly installed with a fish guide channel 3. The fish scale removal device 2 is symmetrically arranged on both sides of the fish guide channel 3, including a fixed bracket 21 and a second drive motor 22 installed on the fixed bracket. The fixed bracket 21 is connected in sequence by bearings to the side fish scale removal device 23, the first drive device 24, the upper and lower fish scale removal device 25, and the second drive device 26. The drive motor is connected to the fish scale removal device 23, the first drive device 24, the upper and lower fish scale removal device 25, and the second drive device 26 through flexible transmission.
[0037] Specifically, the fixed bracket 21 has multiple connecting holes 211 at both ends, which are respectively fitted onto the upper connecting rod 13 and the lower connecting rod 15. The fixed bracket has multiple bearing seats, on which a side fish-scale removal device 23, a first driving device 24, an upper and lower fish-scale removal device 25, and a second driving device 26 are sequentially mounted. The side fish-scale removal device 23 includes a side fish-scale removal connecting roller 231, on which a fish-scale removal roller drive wheel 232 and a first driving device drive wheel 233 are mounted. A drive motor 2... 2. The descaling roller drive wheel 232 is driven to rotate by a belt; the side descaling device 23 is also provided with a plurality of descaling blades fixedly distributed along the axial direction of the side descaling connecting roller 231. The descaling blades include a mounting sleeve 234 and a plurality of descaling teeth 236. The descaling teeth 236 are movably connected to the mounting sleeve 234 through a rotating shaft 235. The descaling teeth 236 are curved and have a serrated structure along the curvature direction. When they come into contact with the fish body, the structure of the descaling teeth 236, which can rotate within the mounting sleeve 234, ensures that the descaling teeth 236 fit snugly. The fish's curved shape avoids processing dead angles, and the movable connection of the rotating shaft 235 can buffer some of the force, preventing excessive force from damaging the fish meat; the first driving device 24 includes a drive shaft 241 and multiple forward geared discs 242 fixedly distributed along the axial direction of the drive shaft 241. The drive shaft 241 is also equipped with a drive shaft forward driven wheel 243, an upper and lower fish scaler drive driving wheel 244, and a second drive device drive wheel 245. The drive shaft forward driven wheel 243 transmits power to the fish scaler roller drive wheel 232 via a belt. The forward gear 242 is made of soft rubber and propels the fish forward. The upper and lower scale removal device 25 is located between the first drive device 24 and the second drive device 26. When the fish body enters the upper and lower scale removal device 25, the rear part has not yet left the first drive device 24. At this time, the first drive device 24 clamps the fish body. After the fish body leaves the first drive device 24, its front and middle parts will enter the second drive device 26. At this time, the second drive device 26 clamps the fish body, thus solving the support problem when removing scales from the upper and lower parts of the fish body.The upper and lower fish scale removal device 25 includes an upper fish scale scraper disc 251, a lower fish scale scraper disc 252, an upper and lower fish scale connecting frame truss 253, and an upper and lower fish scale scraper drive shaft 254. A driven wheel 255 is fixedly mounted on the upper and lower fish scale scraper drive shaft 254. The driven wheel 255 is connected to the upper and lower fish scale removal device drive drive wheel 244 via a belt for power transmission. The upper fish scale scraper disc 251 and the lower fish scale scraper disc 252 are mounted on the upper fish scale scraper disc drive shaft 254. The upper and lower fish scale scraper discs 251 and 252 are slidably connected to the guide rails 256 of the upper and lower fish scale connecting frame trusses. To ensure that the distance between the upper fish scale scraper disc 251 and the lower fish scale scraper disc 252 is adjustable, the two scraper discs are connected to the upper and lower fish scale scraper drive shafts 254 through U-shaped slides 257. Pins 258 are set in the U-shaped slides 257 to transmit torque. The upper fish scale scraper disc 251 and the lower fish scale scraper disc 252 are also provided with threads 259. The threads 259 cooperate with the output screw 250 of the upper and lower adjustment motor 2511 to transmit power and control the scraper discs to move up and down. The upper fish scale scraper disc 251 and the lower fish scale scraper disc 252 have the same structure, including a corner mechanism 2512 and a scraper disc 2512. The corner mechanism 2512 transmits the power from the upper and lower fish scale scraper drive shafts 254 to the scraper disc 2513. A spring is also connected between the output shaft of the corner mechanism 2512 and the scraper disc 2513. During the fish scale removal operation, the spring can buffer part of the force to avoid damaging the fish meat. After the fish body passes through the upper and lower fish scale removal devices 25, it enters the second drive device 26. The second drive device 26 has the same configuration as the first drive device 24. It is driven by a driven wheel 261 and then driven by a belt to the drive wheel 245 of the second drive device. To avoid interference, the fish guide channel 3 is designed in two sections: a front fish guide channel 31 and a rear fish guide channel 32. The gap between the two sections forms the fish scaling area for the upper and lower fish scaling devices. The front fish guide channel has an arc-shaped groove at the positions of the side fish scaling device and the first drive device, while the rear fish guide channel has an arc-shaped groove at the position of the second drive device. The fish body passes sequentially through the side fish scaling device, the first drive device, the upper and lower fish scaling devices, and the second drive device before falling into the rear fish guide channel 32, completing the fish scaling operation.
[0038] Example 2
[0039] Please see Figures 1 to 12 This utility model provides an embodiment that differs from Embodiment 1. In this embodiment, a rupture device 27 is further provided after the second driving device 26, such as... Figure 12As shown, the gutting device 27 includes an upper rod 271 and a lower rod 272, which are meshed by a gear 274. The upper rod 271 is equipped with a counterweight 273, and the lower rod 272 is equipped with a drive motor 275. The drive motor 275 drives the saw blade 276 to rotate. The upper rod 271 and the lower rod 272 are in a figure-eight shape, and the meshing gear 274 forms a fulcrum. By adjusting the weight of the counterweight 273, the force exerted by the saw blade 276 of the lower rod 272 on the fish belly can be controlled to prevent the force from being too great or too small, which would lead to failure in gutting.
[0040] Example 3
[0041] Please see Figures 1 to 13 In one embodiment of this utility model, which differs from embodiment 1, a spray pipe 16 is also provided on the retaining frame 1. One end of the spray pipe 16 is connected to an external water source, and the bottom of the spray pipe is covered with spray holes for rinsing when removing fish scales.
[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An automatic fish scaling and cleaning device, characterized in that, The device includes a retaining frame and a fish-scale removal device. The retaining frame comprises an upper retaining frame and a lower retaining frame. The upper retaining frame is equipped with a drive motor, which is connected to an upper parallel four-bar linkage. The upper parallel four-bar linkage is connected to one end of an upper connecting rod fitted with a spring, and the other end of the upper connecting rod is slidably connected to the retaining frame. The lower retaining frame includes a lower parallel four-bar linkage and a lower connecting rod fitted with a spring. One end of the lower connecting rod is connected to the lower parallel four-bar linkage, and the other end is slidably connected to the retaining frame. The fish-scale removal device is connected to the upper and lower connecting rods. The retaining frame also has a fish guide channel fixedly installed. The fish-scale removal device is symmetrically arranged on both sides of the fish guide channel and includes a fixed bracket and a drive motor mounted on the fixed bracket. The fixed bracket is sequentially connected to a side fish-scale removal device, a first drive device, an upper and lower fish-scale removal device, and a second drive device via bearings. The drive motor is connected to the fish-scale removal device, the first drive device, the upper and lower fish-scale removal device, and the second drive device via flexible transmission.
2. The automatic fish scaling and cleaning device according to claim 1, characterized in that, The side descaling device includes a side descaling connecting roller and multiple descaling blades fixedly distributed along the axial direction of the side descaling connecting roller.
3. The automatic fish scaling and cleaning device according to claim 2, characterized in that, The fish scale removal blade includes a mounting sleeve and multiple fish scale removal teeth. The fish scale removal teeth are movably connected to the mounting sleeve via a rotating shaft. The fish scale removal teeth are curved and have a serrated structure along the curvature direction.
4. The automatic fish scaling and cleaning device according to claim 1, characterized in that, The upper and lower fish scale removal device includes an upper fish scale scraper disc, a lower fish scale scraper disc, an upper and lower fish scale connecting frame truss, and upper and lower fish scale scraper drive shafts. The upper and lower fish scale scraper discs are slidably connected to the upper and lower fish scale scraper drive shafts through a U-shaped groove. The upper and lower fish scale connecting frame truss is equipped with a guide rail and an up-and-down adjustment motor. The upper and lower fish scale scraper discs are slidably connected in the guide rail. The up-and-down adjustment motor is connected to the threaded drive shaft and then connected to the upper and lower fish scale scraper discs.
5. The automatic fish scaling and cleaning device according to claim 4, characterized in that, The upper fish scale scraper disc includes an upper fish scale corner device and a scraper disc, and a spring connects the output shaft of the corner device to the scraper disc.
6. The automatic fish scaling and cleaning device according to claim 1, characterized in that, The first driving device includes a drive shaft and a plurality of forward gears fixedly distributed along the axial direction of the drive shaft. The drive shaft is connected to a drive motor by two belts.
7. The automatic fish scaling and cleaning device according to claim 1, characterized in that, The second drive device is further equipped with a cutting device, which includes an upper rod and a lower rod. The upper rod and the lower rod are meshed by gears. The upper rod is equipped with a counterweight, and the lower rod is equipped with a drive motor. The drive motor drives the saw blade to rotate.
8. The automatic fish scaling and cleaning device according to claim 1, characterized in that, The upper fish guide channel is provided above both ends of the fish guide channel. The upper fish guide channel is provided with a retainer, which is connected to the retaining frame by a spring.
9. An automatic fish scaling and cleaning device according to claim 1, characterized in that, The retaining frame is also equipped with a spray pipe.
10. An automatic fish scaling and cleaning device according to claim 1, characterized in that, The fish guide channel includes a front fish guide channel and a rear fish guide channel. The front fish guide channel has an arc-shaped groove at the position of the fish scale removal device and the first driving device on the side, and the rear fish guide channel has an arc-shaped groove at the position of the second driving device.