A fish descaling machine

Abstract

The application discloses a fish scale removing machine, which is characterized in that: the upper scale removing device and the lower scale removing device are fixedly installed on the base; the upper scale removing device is used for removing the fish scales on one side of the fish body; the lower scale removing device is used for removing the fish scales on the other side of the fish body; the surface changing device is connected between the upper scale removing device and the lower scale removing device, and is used for conveying the fish body with one side of the fish scales removed by the upper scale removing device to the lower scale removing device, and turning over the fish body during the conveying process, so that the fish body is scaled on both sides by the upper scale removing device and the lower scale removing device; and the control device is used for controlling the upper scale removing device and the lower scale removing device. The fish scale removing machine can ensure the fish meat to be basically complete while the fish body is adhered and the scale removing rate is high, and can adapt to different sizes and different types of fish, and has a good scale removing effect on fish bodies with different shapes.

Description

Technical Field

[0001] This invention belongs to the field of daily necessities technology, specifically relating to a fish scale removal machine. Background Technology

[0002] The initial processing of common freshwater fish generally includes the following steps: descaling, gutting, removing internal organs, and removing gills. Existing technologies can be broadly categorized into two types: drum-type descaling machines and rotary blade-type descaling machines. Drum-type descaling machines utilize a rotating drum mechanism with descaling blades arranged inside. Fish are fed into the drum, and the collision between the blades and the fish removes the scales, as exemplified by utility model patent CN223391915U. The other type, rotary blade-type descaling machines, use fixed blades rotating around an axis. A conveyor belt mechanism transports the fish to the rotating blades, where the collision between the blades and the fish removes the scales, as exemplified by utility model patent CN220000608U.

[0003] However, existing descaling machines cannot balance the fit of the blades with the integrity of the fish meat. Drum-type descaling machines cannot guarantee the descaling rate, and rotary blade-type descaling machines cannot guarantee the integrity of the fish meat. Furthermore, the descaling blades of existing descaling machines are all fixed, while different types and weights of fish have individual differences, which means that the fixed blades cannot adapt to the individual differences of the fish. Summary of the Invention

[0004] This invention provides a fish descaling machine that can fit the fish body closely, achieve a high descaling rate, and ensure that the fish meat remains basically intact. It can adapt to fish of different sizes and types and has a good descaling effect on fish of different shapes.

[0005] To achieve the above objectives, the present invention adopts the following specific technical solution:

[0006] A fish scale removal machine includes a base, an upper scale removal device, a lower scale removal device, a surface changing device, and a control device. Both the upper descaling device and the lower descaling device are fixedly installed on the base; the upper descaling device is used to remove scales from one side of the fish body; the lower descaling device is used to remove scales from the other side of the fish body. The flipping device is connected between the upper descaling device and the lower descaling device. It is used to transport the fish body, after one side of the fish scales have been removed by the upper descaling device, to the lower descaling device. During the transport process, the fish body is flipped over, so that the upper and lower descaling devices can remove scales from both sides of the fish body. The control device is used to control the upper descaling device and the lower descaling device.

[0007] Furthermore, the upper descaling device and the lower descaling device have the same structure, both including a support, a conveying mechanism and a descaling mechanism; The bracket is fixedly installed on the base; the conveying mechanism is fixedly installed on the bottom of the bracket and is used to convey the fish body from the inlet side of one end of the bracket to the outlet side of the other end. The descaling mechanism is fixedly installed on the top of the bracket and is arranged vertically opposite to the conveying mechanism. It is equipped with multiple blades that can press against the fish body and a drive motor for driving the multiple blades to rotate. The scales are removed by the blades during the movement of the fish body by the conveying mechanism. The control device is used to control the conveying mechanism and the drive motor.

[0008] Furthermore, the descaling mechanism includes a fixed plate, a top plate, a rotating shaft corresponding to each of the blades, a spring corresponding to each of the rotating shafts, and a driven member corresponding to each of the rotating shafts; The fixed plate is fixedly installed on the top of the bracket; the top plate is parallel to the fixed plate and fixedly connected to the fixed plate; the driven member is rotatably installed between the fixed plate and the top plate; the rotating shaft is slidably installed on the corresponding driven member in the vertical direction and rotates synchronously with the driven member; the bottom end of the rotating shaft is connected to the cutter through the universal joint, the top end passes through the fixed plate and the top plate, and a shoulder is provided in the middle; the spring is sleeved on the outside of the rotating shaft, and both ends abut against the fixed plate and the shoulder, for providing a clamping force on the fish body to the cutter; the drive motor is fixedly installed on the top plate and is connected to each driven member for driving each driven member to rotate, thereby driving the cutter at the bottom end to rotate through the rotating shaft; multiple cutters are staggered.

[0009] Furthermore, the rotating shaft is provided with a long keyway extending along its axial direction; a wedge-shaped key with a wedge on one side is installed in the long keyway; the wedge-shaped key is slidably installed in the long keyway along the axial direction of the rotating shaft, and is used to realize the key connection between the driven member and the rotating shaft and transmit power.

[0010] Furthermore, a coaxial active synchronous pulley is fixedly connected to the bottom end of the output shaft of the drive motor; the active synchronous pulley is rotatably mounted between the top plate and the fixed plate; The driven component is a driven synchronous belt pulley; The double-sided synchronous belt is wound between the driving synchronous pulley and the plurality of driven synchronous pulleys, and is used to transmit the torque of the drive motor from the driving synchronous pulley to each of the driven synchronous pulleys.

[0011] Furthermore, the descaling mechanism also includes an upper support and a lower support for rotatably supporting the driving synchronous pulley and the driven synchronous pulley between the fixed plate and the top plate. The upper support seat is fixedly installed on the bottom surface of the top plate; the lower support seat is fixedly installed on the top surface of the fixed plate; both the upper support seat and the lower support seat are provided with a central hole, and both the top plate and the fixed plate are provided with through holes corresponding to the central holes; the upper support seat on the side facing the lower support seat and the lower support seat on the side facing the upper support seat are provided with annular ball bearing tracks concentric with the central holes; The bottom end face of the driving synchronous pulley and the two end faces of the driven synchronous pulley are both evenly distributed with multiple ball grooves in the circumferential direction, and a ball is installed in each ball groove. The balls at the top of the driven synchronous pulley are all rolled and installed in the annular ball track of the corresponding upper support seat; The balls at the bottom of both the driving and driven synchronous pulleys are rolled within the annular ball track of the corresponding lower support.

[0012] Furthermore, a limiting sleeve is provided between the universal joint and the shoulder of the rotating shaft, the limiting sleeve being used to restrict the universal joint within a set range.

[0013] Furthermore, the conveying mechanism is a belt conveyor, roller conveyor, or chain conveyor.

[0014] Furthermore, the face-changing device is a semi-circular pipe; The bottom of the upper descaling device is higher than the top of the lower descaling device.

[0015] Furthermore, it also includes an arc-shaped guide seat; the arc-shaped guide seat is fixedly installed on the inlet side of the upper descaling device and is an arc-shaped groove used to guide the fish body; The descaling mechanism also includes a pair of arc-shaped guide strips; the pair of guide strips are arranged opposite each other and fixedly installed inside the inlet of the upper descaling device, and are used to adjust the position of the fish body so that the fish body is facing the knife.

[0016] Compared with the prior art, the technical solution of the present invention has the following beneficial effects: Unlike existing drum-type and rotary blade-type fish scalers, this invention treats the fish as a "moving cam." Borrowing from the principle of cam motion, a conveyor mechanism delivers the fish to the designated blades. Driven by the conveyor mechanism, the blades move like a moving cam via springs connected to a rotating shaft. The blades move up and down, closely adhering to the fish's body, while simultaneously rotating to remove scales. A universal joint connects the rotating shaft and the scaler blades, allowing for a degree of free deflection. The universal joints enable the blades to oscillate to a certain extent. Multiple blades are used to increase coverage, resulting in a closer fit to the fish, fewer blind spots, and a wider cleaning area. A limiting sleeve is added to the universal joints to restrict their rotation angle and prevent the blades from oscillating arbitrarily due to centrifugal force. Compared to existing fixed-axis descaling equipment, the fish descaling machine of this invention can adapt well to individual differences in fish through the principle of spring and moving cam, and can adapt to fish of different species and sizes.

[0017] In summary, the fish descaling machine of the present invention can achieve the following balance: conforming to the fish body, high descaling rate, low damage to fish meat, and adaptability to different types of fish. Attached Figure Description

[0018] Figure 1 This is an assembly drawing of the fish scale removal machine of the present invention; Figure 2 This is a schematic diagram of the upper descaling device and the arc-shaped guide seat. Figure 3 This is a schematic diagram of the descaling mechanism; Figure 4 A schematic diagram of the descaling mechanism for removing the drive motor and top plate; Figure 5 This is a schematic diagram of a single-axis cutting tool. Figure 6 This is a schematic diagram of the lower descaling device; Figure 7 This is a top view of the top plate; Figure 8 This is a schematic diagram of the lower support.

[0019] Figure label: 1-Base, 2-Upper descaling device, 3-Lower descaling device, 4-Semi-circular pipe, 5-Guide seat, 21-Bracket, 22-Conveying mechanism, 23-Descaling mechanism, 2301-Cut tool, 2302-Drive motor, 2303-Fixing plate, 2304-Top plate, 2305-Shaft, 2306-Spring, 2307-Shoulder, 2308-Wedge key, 2309-Driving synchronous pulley, 2310-Driven synchronous pulley, 2311-Double-sided synchronous belt, 2312-Upper support seat, 2313-Lower support seat, 2314-Universal joint, 2315-Support, 2316-Limit sleeve, 2317-Ball groove, 2318-Guide strip, 2319-Annular ball track, 2320-Center hole, 2321-Through hole, 51-Arc groove. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] To improve the speed and quality of descaling common fish while minimizing damage to the fish meat and removing scales as cleanly as possible, this invention provides a fish descaling machine based on the principle of a moving cam, treating the fish body as a "moving cam," such as... Figure 1 As shown, the fish descaling machine includes a base 1, an upper descaling device 2, a lower descaling device 3, a surface-changing device, and a control device; wherein: The base 1 forms the foundation of the entire fish descaling machine. The base 1 consists of a base plate and a frame fixedly connected to the base plate. The frame provides different support heights for the upper descaling device 2 and the lower descaling device 3. Both the upper descaling device 2 and the lower descaling device 3 are fixedly installed on the base 1. The upper descaling device 2 removes scales from one side of the fish; the lower descaling device 3 removes scales from the other side of the fish. A flipping device connects the upper descaling device 2 and the lower descaling device 3. It transports the fish body, after one side has been scaled by the upper descaling device 2, to the lower descaling device 3, and flips the fish body during transport, thus allowing the upper and lower descaling devices 2 and 3 to descale both sides of the fish. A control device controls the upper descaling device 2 and the lower descaling device 3.

[0022] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the upper descaling device 2 and the lower descaling device 3 have the same structure, both including a support 21, a conveying mechanism 22 and a descaling mechanism 23.

[0023] In the upper descaling device 2 and the lower descaling device 3, the size and shape of the support 21 can be different, but their purpose is to support the descaling mechanism 23, which removes the scales from the fish conveyed by the conveying mechanism 22. The bottom end of the support 21 is fixedly installed on the base 1. The conveying mechanism 22 is fixedly installed at the bottom of the support 21 and is used to convey the fish from the inlet side of one end of the support 21 to the outlet side of the other end. The conveying mechanism 22 can be a belt conveyor, a roller conveyor, or a chain conveyor. Since the technology of the conveying mechanism 22 is mature, it will not be described in detail here. The conveying mechanism 22 can be driven by a motor, which can be controlled by a control device. In this embodiment, the conveying mechanism 22 is taken as an example of using a belt conveyor. The belt conveyor has one drive shaft and multiple driven shafts. The drive shaft and the driven shafts transmit motion through a flat belt. The drive shaft drives the driven shafts through the flat belt to perform the conveying function.

[0024] The descaling mechanism 23 is fixedly mounted on the top of the bracket 21 and is vertically opposite to the conveying mechanism 22. The descaling mechanism 23 is equipped with multiple blades 2301 that can press against the fish body and a drive motor 2302 for driving the blades 2301 to rotate. It is used to descale the fish body as the conveying mechanism 22 moves the fish; the fish passes between the conveying mechanism 22 and the blades 2301, and during this passage, the drive motor 2302 drives the blades 2301 to rotate, thus performing the descaling operation. A control device is used to control the conveying mechanism 22 and the drive motor 2302.

[0025] like Figure 3 , Figure 4 and Figure 5As shown, the descaling mechanism 23, in addition to the drive motor 2302 and the cutter 2301, also includes a fixed plate 2303, a top plate 2304, a rotating shaft 2305 corresponding to each cutter 2301, a spring 2306 corresponding to each rotating shaft 2305, a follower corresponding to each rotating shaft 2305, a support 2315, and a pair of arc-shaped guide strips 2318. The fixed plate 2303 is fixedly installed on the top of the bracket 21, thereby supporting and fixing the descaling mechanism 23 on the bracket 21. The top plate 2304 is arranged parallel to the fixed plate 2303 and is fixedly connected to the fixed plate 2303 through four supports 2315, thereby fixing the top plate 2304 and the fixed plate 2303 together as one unit through the supports 2315 and screws, forming a working space between the top plate 2304 and the fixed plate 2303 for the transmission mechanism between the drive motor 2302 and the rotating shaft 2305. The driven member is rotatably mounted between the fixed plate 2303 and the top plate 2304, and is driven to rotate by the drive motor 2302. A rotating shaft 2305 corresponds one-to-one with a cutter 2301. The rotating shaft 2305 is slidably mounted on the corresponding driven member in the vertical direction and rotates synchronously with the driven member, adapting to fish of different sizes through the vertical sliding of the rotating shaft 2305. The bottom end of the rotating shaft 2305 is connected to the cutter 2301 via a universal joint 2314. The cutter 2301 is connected to the bottom end of the rotating shaft 2305 via the universal joint 2314, allowing the cutter 2301 to rotate flexibly to expand the scaling range and adapt to different fish bodies. The rotating shaft 2305 and the universal joint 2314 can be connected by a pin, and the universal joint 2314 is then connected to the cutter 2301 via a pin. The top end of the rotating shaft 2305 passes through the fixed plate 2303 and the top plate 2304, providing space for the vertical sliding of the rotating shaft 2305. A shoulder 2307 is provided in the middle of the rotating shaft 2305, which limits the bottom end of the spring 2306. The spring 2306 is sleeved on the outside of the rotating shaft 2305, with both ends abutting between the fixed plate 2303 and the shoulder 2307, providing a clamping force to the cutter 2301 on the fish body. One end of the spring 2306 is limited by the fixed plate 2303, and the other end is limited by the shoulder 2307 of the rotating shaft 2305. The spring 2306 is clamped between the fixed plate 2303 and the shoulder 2307 to provide a clamping force on the fish body. The drive motor 2302 is fixedly mounted on the top plate 2304 and is connected to each driven component for transmission. It drives each driven component to rotate, thereby rotating the bottom cutter 2301 via the rotating shaft 2305. Multiple cutters 2301 are staggered; in this embodiment, a total of seven cutters 2301 are provided. The distribution positions of the cutters 2301 can be referenced... Figure 7 The through hole 2321 in the top plate 2304 is used to install the rotating shaft 2305 and the output shaft of the drive motor 2302. The seven cutters 2301 are staggered along the length and width of the fish body, ensuring that their working range covers every part of the fish body. Figure 2 As shown, a pair of guide strips 2318 are positioned opposite each other and fixedly installed inside the inlet of the upper descaling device 2, used to adjust the position of the fish so that the fish body faces the blade 2301. The seven blades 2301 are arranged with overlapping redundant portions in the direction of the conveyor belt movement perpendicular to the conveyor mechanism 22, ensuring that the blades 2301 can cover the entire surface of one side of the fish during the descaling process. At the same time, to prevent interference between the various rotating shafts 2305, they are staggered in the direction parallel to the conveyor belt movement; the specific arrangement can be found in [reference needed]. Figure 7 The location distribution of the through hole 2321.

[0026] like Figure 5 As shown, a long keyway extending along its axial direction is provided on the upper side of the rotating shaft 2305; a wedge-shaped key 2308 with a wedge on one side is installed in the long keyway; the length of the long keyway is greater than the length of the wedge-shaped key 2308, so that the wedge-shaped key 2308 can be slidably installed in the long keyway along the axial direction of the rotating shaft 2305, which is used to realize the key connection between the driven member and the rotating shaft 2305 and transmit power, so that while connecting the rotating shaft 2305 and the driven member through the wedge-shaped key 2308, the rotating shaft 2305 can also have sliding space in the axial direction.

[0027] like Figure 3 and Figure 4 As shown, a drive synchronous pulley 2309 is fixedly connected to the bottom end of the output shaft of the drive motor 2302; the drive synchronous pulley 2309 is coaxially connected to the output shaft of the drive motor 2302; the drive synchronous pulley 2309 is rotatably mounted between the top plate 2304 and the fixed plate 2303; the driven component is a driven synchronous pulley 2310; a double-sided synchronous belt 2311 is wound between the drive synchronous pulley 2309 and multiple driven synchronous pulleys 2310, used to transmit the torque of the drive motor 2302 from the drive synchronous pulley 2309 to each driven synchronous pulley 2310. By using a double-sided synchronous belt 2311 wound between the drive synchronous pulley 2309 and multiple driven synchronous pulleys 2310, it is possible to use one drive motor 2302 to simultaneously drive seven tools 2301 to rotate synchronously. In this embodiment, the transmission principle between the drive motor 2302 and the rotating shaft 2305 is shown by taking the synchronous belt drive mechanism as an example. In fact, the transmission between the drive motor 2302 and each rotating shaft 2305 can also be achieved by using a chain drive mechanism.

[0028] like Figure 4 and Figure 8As shown, the descaling mechanism 23 also includes an upper support 2312 and a lower support 2313 for rotatably supporting the driving synchronous pulley 2309 and the driven synchronous pulley 2310 between the fixed plate and the top plate. The upper support 2312 at the top end and the lower support 2313 at the bottom end of the driven synchronous pulley 2310 are arranged opposite to each other. The top end of the driving synchronous pulley 2309 is fixedly connected to the output shaft of the drive motor 2302. A lower support 2313 is provided at the bottom end of the driving synchronous pulley 2309. An upper support 2312 is provided at the top end of each driven synchronous pulley 2310, and a lower support 2313 is provided at the bottom end of each driven synchronous pulley 2310. One driving synchronous pulley 2309 and seven driven synchronous pulleys 2310 are rotatably mounted between the top plate 2304 and the fixed plate 2303 through the upper support 2312 and the lower support 2313. The upper support 2312 is fixedly installed on the bottom surface of the top plate 2304; the lower support 2313 is fixedly installed on the top surface of the fixing plate 2303; both the upper support 2312 and the lower support 2313 are provided with a central hole 2320, through which the rotating shaft 2305 can pass. Figure 7 As shown, both the top plate 2304 and the fixed plate 2303 are provided with through holes 2321 corresponding one-to-one with the central hole 2320; the upper support 2312 is provided with an annular ball bearing track 2319 concentric with the central hole 2320 on the side facing the lower support 2313, and the lower support 2313 is provided with an annular ball bearing track 2319 concentric with the central hole 2320 on the side facing the upper support 2312. Figure 4 and Figure 5 As shown, the bottom end face of the driving synchronous pulley 2309 and the two end faces of the driven synchronous pulley 2310 are both evenly distributed with multiple ball grooves 2317 along the circumference, and a ball is installed in each ball groove 2317. The balls at the top of the driven synchronous pulley 2310 are all rolled and mounted in the annular ball track 2319 of the corresponding upper support 2312; the balls at the bottom of the driving synchronous pulley 2309 and the driven synchronous pulley 2310 are all rolled and mounted in the annular ball track 2319 of the corresponding lower support 2313; the balls enable the driven synchronous pulley 2310 to be rotated between the upper support 2312 and the lower support 2313, and enable the driving synchronous pulley 2309 to be rotated and supported on the lower support 2313.

[0029] like Figure 5As shown, a limiting sleeve 2316 is also provided between the universal joint 2314 and the shoulder 2307 on the rotating shaft 2305. The limiting sleeve 2316 is used to restrict the universal joint 2314 within a set range, thereby limiting the rotation angle of the universal joint 2314. The limiting sleeve 2316 is connected to the universal joint 2314 by a pin, which restricts the rotation of the universal joint 2314 within a certain angle, thereby preventing the tool 2301 from swinging randomly due to centrifugal force.

[0030] like Figure 1 As shown, the fish-turning device is a semi-circular pipe 4. The bottom of the upper descaling device 2 is higher than the top of the lower descaling device 3, so that under the guidance of the semi-circular pipe 4, the fish body can enter the lower descaling device 3 from the outlet side of the upper descaling device 2 by gravity alone. In this embodiment, the fish-turning device uses the semi-circular pipe 4 as an example to turn the fish body over, thereby descaling both sides of the fish body. However, other fish-turning devices can also be used to turn the fish body over.

[0031] like Figure 1 and Figure 2 As shown, the fish descaling machine also includes a guide seat 5; the guide seat 5 is fixedly installed on the inlet side of the upper descaling device 2 and is an arc-shaped groove 51 used to guide the fish body.

[0032] Obviously, those skilled in the art can make various modifications and variations to the embodiments of the present invention without departing from the spirit and scope of the invention. Therefore, if these modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

[0033] In summary, the above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A fish scale removal machine, characterized in that, It includes a base, an upper descaling device, a lower descaling device, a face-changing device, and a control device; Both the upper descaling device and the lower descaling device are fixedly installed on the base; the upper descaling device is used to remove scales from one side of the fish body; the lower descaling device is used to remove scales from the other side of the fish body. The flipping device is connected between the upper descaling device and the lower descaling device. It is used to transport the fish body, after one side of the fish scales have been removed by the upper descaling device, to the lower descaling device. During the transport process, the fish body is flipped over, so that the upper and lower descaling devices can remove scales from both sides of the fish body. The control device is used to control the upper descaling device and the lower descaling device.

2. The fish scale removal machine as described in claim 1, characterized in that, The upper descaling device and the lower descaling device have the same structure, both including a support, a conveying mechanism and a descaling mechanism; The bracket is fixedly installed on the base; the conveying mechanism is fixedly installed on the bottom of the bracket and is used to convey the fish body from the inlet side of one end of the bracket to the outlet side of the other end. The descaling mechanism is fixedly installed on the top of the bracket and is arranged vertically opposite to the conveying mechanism. It is equipped with multiple blades that can press against the fish body and a drive motor for driving the multiple blades to rotate. The scales are removed by the blades during the movement of the fish body by the conveying mechanism. The control device is used to control the conveying mechanism and the drive motor.

3. The fish scale removal machine as described in claim 2, characterized in that, The descaling mechanism includes a fixed plate, a top plate, a rotating shaft corresponding to each of the blades, a spring corresponding to each of the rotating shafts, and a driven member corresponding to each of the rotating shafts. The fixed plate is fixedly installed on the top of the bracket; the top plate is parallel to the fixed plate and fixedly connected to the fixed plate; the driven member is rotatably installed between the fixed plate and the top plate; the rotating shaft is slidably installed on the corresponding driven member in the vertical direction and rotates synchronously with the driven member; the bottom end of the rotating shaft is connected to the cutter through the universal joint, the top end passes through the fixed plate and the top plate, and a shoulder is provided in the middle; the spring is sleeved on the outside of the rotating shaft, and both ends abut against the fixed plate and the shoulder, for providing a clamping force on the fish body to the cutter; the drive motor is fixedly installed on the top plate and is connected to each driven member for driving each driven member to rotate, thereby driving the cutter at the bottom end to rotate through the rotating shaft; multiple cutters are staggered.

4. The fish scale removal machine as described in claim 3, characterized in that, The rotating shaft is provided with a long keyway extending along its axial direction; a wedge-shaped key with a wedge on one side is installed in the long keyway; the wedge-shaped key is slidably installed in the long keyway along the axial direction of the rotating shaft, and is used to realize the key connection between the driven member and the rotating shaft and transmit power.

5. The fish scale removal machine as described in claim 4, characterized in that, The bottom end of the output shaft of the drive motor is fixedly connected to a coaxial active synchronous pulley; the active synchronous pulley is rotatably mounted between the top plate and the fixed plate; The driven component is a driven synchronous belt pulley; The double-sided synchronous belt is wound between the driving synchronous pulley and the plurality of driven synchronous pulleys, and is used to transmit the torque of the drive motor from the driving synchronous pulley to each of the driven synchronous pulleys.

6. The fish scale removal machine as described in claim 5, characterized in that, The descaling mechanism further includes an upper support seat and a lower support seat for rotatably supporting the driving synchronous pulley and the driven synchronous pulley between the fixed plate and the top plate and disposed opposite to each other. The upper support seat is fixedly installed on the bottom surface of the top plate; the lower support seat is fixedly installed on the top surface of the fixed plate; both the upper support seat and the lower support seat are provided with a central hole, and both the top plate and the fixed plate are provided with through holes corresponding to the central holes; the upper support seat on the side facing the lower support seat and the lower support seat on the side facing the upper support seat are provided with annular ball bearing tracks concentric with the central holes; The bottom end face of the driving synchronous pulley and the two end faces of the driven synchronous pulley are both evenly distributed with multiple ball grooves in the circumferential direction, and a ball is installed in each ball groove. The balls at the top of the driven synchronous pulley are all rolled and installed in the annular ball track of the corresponding upper support seat; The balls at the bottom of both the driving and driven synchronous pulleys are rolled within the annular ball track of the corresponding lower support.

7. The fish scale removal machine as described in claim 6, characterized in that, The rotating shaft is further provided with a limiting sleeve between the universal joint and the shoulder, the limiting sleeve being used to restrict the universal joint within a set range.

8. The fish scale removal machine as described in claim 2, characterized in that, The conveying mechanism is a belt conveyor, roller conveyor, or chain conveyor.

9. The fish scale removal machine as described in any one of claims 1-8, characterized in that, The face-changing device is a semi-circular pipe; The bottom of the upper descaling device is higher than the top of the lower descaling device.

10. The fish scale removal machine as described in claim 9, characterized in that, It also includes an arc-shaped guide seat; the arc-shaped guide seat is fixedly installed on the inlet side of the upper descaling device and is an arc-shaped groove used to guide the fish body; The descaling mechanism also includes a pair of arc-shaped guide strips; the pair of guide strips are arranged opposite each other and fixedly installed inside the inlet of the upper descaling device, and are used to adjust the position of the fish body so that the fish body is facing the knife.

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