Tuna bone and meat separating device

Abstract

This invention discloses a tuna bone and meat separation device. The invention relates to the field of fish bone processing machinery and equipment, and includes a fish bone cutting device. A feeding main plate is located at the middle of the rear end of the fish bone cutting device, and a bone and meat separation device is located at the front end of the fish bone cutting device. A discharge plate is located at the front end of the bone and meat separation device, and several support legs are provided at the bottom of both the bone and meat separation device and the fish bone cutting device. This tuna bone and meat separation device can cut tuna bones into several neat pieces using two parallel cutting drums. The expanding arc plate can expand under the action of an electric pusher when the spacing between the cutting drums changes, ensuring that the expanding arc plate always fits the surface of the fish bone, guaranteeing the stability and accuracy of the cutting. Furthermore, it can adaptively adjust the distance between the two cutting drums through a telescopic adaptive column and transmission components, possessing adaptive capability to handle fish bones in different situations.

Description

Technical Field

[0001] This invention relates to the field of fish bone processing machinery and equipment, specifically a tuna bone and meat separation device. Background Technology

[0002] With the rapid development of modern society and the continuous improvement of living standards, people are paying more and more attention to health. At the same time, tuna, as a nutritious and healthy modern food, is highly regarded and increasingly favored by developed countries such as Europe and the United States. Tuna is used to make various foods. Because the number of fish bones inside the tuna is small and they are regular and concentrated, the dissection and cutting process of tuna is relatively simple. However, it is inconvenient to manually separate the meat between the fish bones, resulting in fish meat residue between the fish bones and difficulty in separation, which leads to waste of fish meat. Bone and meat separation device can separate the tuna bones and the remaining fish meat.

[0003] Chinese utility patent CN216255124U discloses a tuna bone and meat separation device, relating to the technical field of bone and meat separation equipment. It features an extendable roller length and its key technical aspects are: a machine body and a horizontal plate positioned below one side of the machine body. A support plate is horizontally slidably connected to the top of the horizontal plate, and the support plate is vertically positioned. A first roller and two rotating column assemblies are rotatably connected to the side of the machine body near the support plate. A groove is provided on the support plate for the first roller to pass horizontally through. One end of the first roller passing through the groove is connected to a second roller via a connector. The two rotating column assemblies are located on opposite sides of the first roller, with one rotating column assembly located below the first roller and the other above it. The two rotating column assemblies are connected by a compression belt. The machine body contains a drive unit for driving the first roller and the two rotating column assemblies to rotate.

[0004] The aforementioned device uses a roller-assisted compression method to separate the flesh from the bones of passing tuna. However, the flesh between the two bones cannot be separated by compression due to the support of the bones. The separation is incomplete, the efficiency is poor, and waste is likely to occur. Furthermore, for the finer bones, compression can cause the bones to break, and the bone fragments are easily separated along with the flesh, resulting in impurities in the flesh and poor separation effect. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a tuna bone and meat separation device, which solves the problem of poor efficiency and effectiveness in separating tuna bones from meat.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a tuna bone and meat separation device, including a fish bone cutting device, a feeding main board is provided at the middle of the rear end of the fish bone cutting device, a bone and meat separation device is provided at the front end of the fish bone cutting device, a discharge plate is provided at the front end of the bone and meat separation device, and several support legs are provided at the bottom of both the bone and meat separation device and the fish bone cutting device.

[0007] Preferably, the feeding main board includes a feeding plate, the front end of which extends downward at an angle into the interior of the fishbone cutting device, the bottom end of which is fixedly connected to the outer surface of the fishbone cutting device, and a spine guide groove is provided in the middle of the top end of the feeding plate.

[0008] Preferably, the fishbone cutting device includes a device housing, the bottom of which is fixedly connected to the top of the support leg. The interior of the device housing communicates with the bone-meat separation device. Inside the device housing, two vertically parallel cutting cylinders are arranged, which are mirror-symmetrical. The right sides of the two cutting cylinders are rotatably connected to a telescopic adaptation column, and the left ends of the two cutting cylinders are fixedly connected to a transmission component. Electric push rods are meshed and connected to the front side of the upper cutting cylinder and the rear side of the lower cutting cylinder. The end of the electric push rod away from the cutting cylinder is fixedly connected to the interior of the device housing. An infrared sensor for monitoring the height of the cutting cylinder is arranged inside the device housing, and the telescopic end of the electric push rod is a rack.

[0009] Preferably, the cutting drum includes a drive shaft rotatably connected to the left end of the transmission assembly. A drive motor is provided at the left end of the lower side of the drive shaft. A cyclone-shaped support column is fixedly connected to the middle of the outer surface of the drive shaft. An expansion arc plate is rotatably connected to each outward angle of the outer surface of the support column. Several parallel cutting teeth are fixedly connected to the outer surface of the expansion arc plate. Several expansion arc plates on the same side can form a cylindrical shape. An expansion guide post is fixedly connected to the left end of the expansion arc plate away from the support column. An opening and closing control plate is rotatably connected to the left side of the outer surface of the drive shaft. Several opening and closing arc grooves that can pass through the expansion guide post are opened on the left and right sides of the opening and closing control plate. The several opening and closing arc grooves are arranged in a circular array with the center of the opening and closing control plate. A transmission gear is fixedly connected to the outer surface of the opening and closing control plate. The outer surface of the transmission gear is meshed with the telescopic end of the electric push bar.

[0010] Preferably, the telescopic adaptive column includes an L-shaped inner cylinder connecting column. The left end of the inner cylinder connecting column is rotatably connected to the right end of the lower transmission shaft in the horizontal direction. The outer surface of the inner cylinder connecting column in the horizontal direction is fixedly connected to the inside of the device housing. A limit plate is fixedly connected to the top of the inner cylinder connecting column in the vertical direction. An adaptive spring is fixedly connected to the outer side of the bottom end of the limit plate. An L-shaped outer cylinder connecting column is fitted together with the outer surface of the inner cylinder connecting column and the limit plate. The left end of the outer cylinder connecting column in the horizontal direction is rotatably connected to the right end of the upper transmission shaft. The bottom end of the adaptive spring is fixedly connected to the bottom of the inner end of the outer cylinder connecting column in the vertical direction.

[0011] Preferably, the transmission assembly includes two drive gears that are rotatably connected to the left end of the outer surface of the transmission shaft. The two drive gears are parallel to each other. A connecting gear is meshed with the outer side of the drive gears. The two connecting gears mesh with each other. The drive gears and the adjacent connecting gears are rotatably connected to a first connecting rod. The outer surfaces of the two connecting gears are rotatably connected to a second connecting rod.

[0012] Preferably, the bone and meat separation device includes a main body, the outer surface of which is fixedly connected to the front inner side of the outer shell. The main body has an outlet communicating with the outside. Above the outlet, a filter screen plate is fixedly connected to the inside of the main body. The front end of the filter screen plate is inclined downwards and fixedly connected to the rear end of the outlet plate. Baffles are fixedly connected to both sides of the filter screen plate. An adaptation plate is connected to the rear end of the filter screen plate via several springs. The inner side of the adaptation plate is slidably connected to the outer surface of the rear end of the filter screen plate. A friction screen is provided at the top of the filter screen plate. A pressure plate is slidably connected to the top of the friction screen. Several pressure springs are fixedly connected to the top of the pressure plate. The tops of the pressure springs are fixedly connected to the inside of the main body. The lower outer angle of the friction screen near the cutting drum is inclined. A friction drive assembly is provided together with the left end of the friction screen and the filter screen plate.

[0013] Preferably, the friction drive assembly includes a drive column rotatably connected to the middle of the left end of the filter screen plate. A sliding groove is provided on the side of the drive column away from the filter screen plate. A driven column is movably connected inside the sliding groove. The right end of the driven column is fixedly connected to the middle of the left end of the friction screen. A driven gear is fixedly connected to the left end of the connection between the drive column and the filter screen plate. Different-shaped gears are provided on both the front and rear sides of the driven gear. Both of the different-shaped gears can mesh with the driven gear. A synchronous gear is fixedly connected to the left end of the different-shaped gear. The two synchronous gears mesh with each other. A transmission belt is movably connected to the left end of the rear synchronous gear and the outer surface of the lower transmission shaft. The left end of the synchronous gear is rotatably connected inside the main body of the device.

[0014] Preferably, the driven gear meshes with only one of the non-standard gears at a time, and the number of teeth of the non-standard gear is half that of the driven gear.

[0015] This invention provides a tuna bone and meat separation device. Compared with the prior art, it has the following advantages:

[0016] 1. This tuna bone and meat separation device uses two parallel cutting drums to cut tuna bones into several pieces, laying a good foundation for the subsequent bone and meat separation process. The expansion plate can expand under the action of an electric pusher when the spacing of the cutting drums changes, so that the expansion plate can always fit the surface of the fish bone, ensuring the stability and accuracy of the cutting. At the same time, the expansion action of the expansion plate can also push out the fish bone in the gap, avoiding fish bone residue from affecting the cutting effect.

[0017] 2. This tuna bone and meat separation device, through the electric pusher and the infrared sensor that monitors the height of the cutting drum, combined with the function of the telescopic adaptive column, can adjust the distance between the two cutting drums when faced with tuna bones of different thicknesses and hardnesses. It has self-adaptive capabilities and can cope with different types of fish bones. The transmission component ensures that the two cutting drums can maintain synchronous transmission while adjusting the distance, ensuring the normal operation of the cutting work and realizing adaptive processing of different fish bones.

[0018] 3. This tuna bone and meat separation device applies appropriate pressure to the friction screen under the action of the pressure plate and the pressure spring to ensure that the friction screen and the fish bone are in close contact. The friction drive component drives the friction screen to move, so that the friction screen and the filter screen plate have relative motion. The friction generated by the relative motion can thoroughly grind the fish bone pieces, effectively filter out the fish meat on the surface of the fish bone, and improve the efficiency and quality of bone and meat separation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a cross-sectional view of the left side of the fishbone cutting device of the present invention;

[0021] Figure 3 This is a cross-sectional view of the right side of the fishbone cutting device of the present invention.

[0022] Figure 4 This is a schematic diagram of the telescopic adaptive column structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the transmission component structure of the present invention;

[0024] Figure 6 This is a cross-sectional view of the internal structure of the bone-meat separation device of the present invention;

[0025] Figure 7 This is a schematic diagram of the friction drive component structure of the present invention.

[0026] In the diagram: 1. Fishbone cutting device; 11. Cutting drum; 112. Expanding arc plate; 114. Drive shaft; 115. Support column; 12. Electric push rod; 13. Device housing; 14. Telescopic adaptation column; 141. Outer cylinder connecting column; 142. Limiting plate; 143. Adaptive spring; 144. Inner cylinder connecting column; 15. Transmission assembly; 151. Drive gear; 152. Connecting rod one; 153. Connecting gear; 154. Connecting rod two; 2. Bone and meat separation 21. Device body; 22. Pressure spring; 23. Pressure plate; 24. Friction screen; 25. Baffle; 26. Filter screen plate; 27. Adaptive plate; 29. ​​Friction drive assembly; 291. Transmission belt; 292. Synchronous gear; 293. Special-shaped gear; 294. Driven gear; 295. Drive column; 296. Driven column; 297. Sliding groove; 3. Discharge plate; 4. Feeding main plate; 41. Spine guide groove; 42. Feeding plate; 5. Support leg. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention have been clearly and completely described. 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.

[0028] Please see Figure 1 - Figure 7 The present invention provides a technical solution: a tuna bone and meat separation device, including a fish bone cutting device 1, a feeding main board 4 at the middle of the rear end of the fish bone cutting device 1, a bone and meat separation device 2 at the front end of the fish bone cutting device 1, a discharge plate 3 at the front end of the bone and meat separation device 2, and a plurality of support legs 5 at the bottom of both the bone and meat separation device 2 and the fish bone cutting device 1.

[0029] During operation, tuna bones enter the device from the feed main board 4, are cut by the fish bone cutting device 1 and separated by the bone and meat separation device 2, and are finally discharged from the discharge plate 3. The support leg 5 supports and fixes the entire device.

[0030] Please see Figure 2 The feed plate 4 includes a feed plate 42. The front end of the feed plate 42 extends downward at an angle into the fishbone cutting device 1. The bottom end of the feed plate 42 is fixedly connected to the outer surface of the fishbone cutting device 1. A spine guide groove 41 is provided in the middle of the top end of the feed plate 42. The spine guide groove 41 can guide the spine part of the tuna bone, so that the tuna bone can stably enter the fishbone cutting device 1 along the inclined feed plate 42.

[0031] Please see Figure 2 - Figure 3 The fishbone cutting device 1 includes a device housing 13. The bottom end of the device housing 13 is fixedly connected to the top of the support leg 5. The inside of the device housing 13 is connected to the bone and meat separation device 2. The device housing 13 is equipped with two vertically parallel cutting cylinders 11. The two cutting cylinders 11 are mirror-symmetrical. The right side of the two cutting cylinders 11 is rotatably connected to a telescopic adaptation column 14. The left end of the two cutting cylinders 11 is fixedly connected to a transmission component 15. The front side of the upper cutting cylinder 11 and the rear side of the lower cutting cylinder 11 are both meshed with electric push rods 12. The end of the electric push rod 12 away from the cutting cylinder 11 is fixedly connected to the inside of the device housing 13. The device housing 13 is equipped with an infrared sensor to monitor the height of the cutting cylinder 11. The telescopic end of the electric push rod 12 is a rack.

[0032] The outer casing 13 provides protection for the internal components. Inside, two parallel and mirror-symmetrical cutting drums 11 are responsible for cutting fish bones. The telescopic adaptation column 14 on the right and the transmission assembly 15 on the left ensure the connection and transmission of the cutting drums 11. The electric push bar 12 can adjust the state of the cutting drums 11 based on the height monitored by the infrared sensor. The cut fish bones enter the next stage through the connection between the outer casing and the bone-meat separation device 2.

[0033] The infrared sensor can detect whether the height of the cutting drum 11 has changed through infrared light. This is existing technology and will not be explained here.

[0034] The cutting drum 11 includes a drive shaft 114 rotatably connected to the left end of the transmission assembly 15. A drive motor is provided at the left end of the lower drive shaft 114. A cyclone-shaped support column 115 is fixedly connected to the middle of the outer surface of the drive shaft 114. An expansion arc plate 112 is rotatably connected to each outward angle of the outer surface of the support column 115. Several parallel cutting teeth are fixedly connected to the outer surface of the expansion arc plate 112. Several expansion arc plates 112 on the same side can form a cylindrical shape. An expansion guide column is fixedly connected to the left side of the expansion arc plate 112 away from the support column. An opening and closing control plate is rotatably connected to the left side of the outer surface of the drive shaft 114. Several opening and closing arc grooves that can pass through the expansion guide column are opened on the left and right sides of the opening and closing control plate. The several opening and closing arc grooves are arranged in a circular array with the center of the opening and closing control plate. A transmission gear is fixedly connected to the outer surface of the opening and closing control plate. The outer surface of the transmission gear is meshed with the telescopic end of the electric push bar 12.

[0035] The lower drive shaft 114 rotates under the drive of the drive motor, and drives the overall expansion arc plate 112 to rotate through the cyclone-shaped support column 115. The cutting teeth on the outside of the expansion arc plate 112 cut the fish bone longitudinally; while the misaligned meshing between the two cyclone-shaped support columns 115 can cut the fish bone laterally. The electric push bar 12 does not extend and mesh with the transmission gear when it does not monitor the change in height of the upper cutting drum 11, so that the opening and closing control plate rotates synchronously with the cyclone-shaped support column 115.

[0036] Please see Figure 4 The telescopic adaptable column 14 includes an L-shaped inner cylinder connecting column 144. The left end of the inner cylinder connecting column 144 is rotatably connected to the right end of the lower transmission shaft 114 in the horizontal direction. The outer surface of the inner cylinder connecting column 144 in the horizontal direction is fixedly connected to the inside of the device housing 13. The top vertical end of the inner cylinder connecting column 144 is fixedly connected to a limiting plate 142. An adaptable spring 143 is fixedly connected to the outer side of the bottom end of the limiting plate 142. The outer surface of the inner cylinder connecting column 144 and the outer surface of the limiting plate 142 are together fitted with an L-shaped outer cylinder connecting column 141. The left end of the outer cylinder connecting column 141 in the horizontal direction is rotatably connected to the right end of the upper transmission shaft 114. The bottom end of the adaptable spring 143 is fixedly connected to the bottom vertical end of the outer cylinder connecting column 141.

[0037] When the spacing between the cutting drums 11 is adjusted, the outer drum connecting column 141 moves relative to the inner drum connecting column 144, adapting to the downward pulling force provided by the spring 143, and the limiting plate 142 restricts the range of movement to ensure the stability of the rotational connection between the two cutting drums 11.

[0038] Please see Figure 5 The transmission assembly 15 includes two drive gears 151 that are rotatably connected to the left end of the outer surface of the transmission shaft 114. The two drive gears 151 are parallel to each other. A connecting gear 153 is meshed with the outer side of the drive gears 151. The two connecting gears 153 mesh with each other. The drive gears 151 and the adjacent connecting gears 153 are rotatably connected to a first connecting rod 152. The outer surfaces of the two connecting gears 153 are rotatably connected to a second connecting rod 154.

[0039] The two drive gears 151, through meshing with the connecting gear 153 and the connection between the connecting rod 152 and the connecting rod 154, ensure that the two drive gears 151 can adapt to the change in position by rotating when the height changes, thereby ensuring that the two cutting drums 11 maintain synchronous transmission.

[0040] Please see Figure 6The bone and meat separation device 2 includes a main body 21. The outer surface of the main body 21 is fixedly connected to the front inner side of the outer shell 13. The main body 21 has an outlet that communicates with the outside. Above the outlet, a filter screen plate 26 is fixedly connected to the inside of the main body 21. The front end of the filter screen plate 26 is inclined downward and fixedly connected to the rear end of the outlet plate 3. Baffles 25 are fixedly connected to both the left and right sides of the filter screen plate 26. The rear end of the filter screen plate 26 is connected to an adaptation plate 27 by several springs. The inner side of the adaptation plate 27 is slidably connected to the outer surface of the rear end of the filter screen plate 26. A friction screen 24 is provided at the top of the filter screen plate 26. A pressure plate 23 is slidably connected to the top of the friction screen 24. Several pressure springs 22 are fixedly connected to the top of the pressure plate 23. The top of the pressure springs 22 is fixedly connected to the inside of the main body 21. The lower outer corner of the friction screen 24 near the cutting drum 11 is inclined. The friction screen 24 and the left end of the filter screen plate 26 are jointly provided with a friction drive assembly 29.

[0041] Fish bone pieces entering from the cutting device fall between the friction screen 24 and the filter screen plate 26. The pressure spring 22 applies pressure to the friction screen 24 through the pressure plate 23, so that the fish bone pieces are pressed tightly. The friction drive assembly 29 drives the friction screen 24 to move, and generates relative movement with the filter screen plate 26 to separate the fish meat. The adapting plate 27 is attached to the outer surface of the cutting drum 11 by the spring to prevent the fish bone pieces from falling. The baffle 25 prevents the fish meat from leaking to the side. The processed fish bones are discharged through the front end of the filter screen plate 26 to the discharge plate 3, and the fish meat is discharged from the discharge port.

[0042] The pressure spring 22 can be replaced with different sizes depending on the type of tuna, as long as it can ensure that the fish bones are pressed down without breaking.

[0043] Please see Figure 7 The friction drive assembly 29 includes a drive column 295 rotatably connected to the middle of the left end of the filter screen plate 26. A sliding groove 297 is provided on the side of the drive column 295 away from the filter screen plate 26. A driven column 296 is movably connected inside the sliding groove 297. The right end of the driven column 296 is fixedly connected to the middle of the left end of the friction screen 24. A driven gear 294 is fixedly connected to the left end of the connection between the drive column 295 and the filter screen plate 26. A non-circular gear 293 is provided on both the front and rear sides of the driven gear 294. Both non-circular gears 293 can mesh with the driven gear 294. A synchronous gear 292 is fixedly connected to the left end of the non-circular gear 293. The two synchronous gears 292 mesh with each other. A transmission belt 291 is movably connected to the left end of the rear synchronous gear 292 and the outer surface of the lower transmission shaft 114. The left end of the synchronous gear 292 is rotatably connected to the inside of the device body 21.

[0044] The lower drive shaft 114 drives the rear synchronous gear 292 to rotate via the drive belt 291. The two synchronous gears 292 mesh to drive the irregular gear 293 to rotate. The irregular gear 293 meshes with the driven gear 294, driving the drive column 295 to swing back and forth. The sliding groove 297 of the drive column 295 drives the friction screen 24 to slide back and forth via the driven column 296, realizing the relative movement between the friction screen 24 and the filter screen plate 26.

[0045] Please see Figure 7 The driven gear 294 meshes with only one of the non-standard gears 293 at a time. The number of teeth of the non-standard gear 293 is half that of the driven gear 294. The driven gear 294 alternates between forward and reverse rotation, driving the drive column 295 to rotate in both directions, thereby causing the friction screen 24 to reciprocate and enhance the friction effect on the fishbone block.

[0046] Please see Figure 1 - Figure 7 At work,

[0047] First, the tuna bones are placed on the feed plate 42 of the feed main board 4, with the spine embedded in the spine guide groove 41. The bones slide into the fish bone cutting device 1 along the feed plate 42. The drive motor of the lower transmission shaft 114 drives the cutting drum 11. The transmission component 15 ensures synchronous transmission. The telescopic adaptation column 14 can be adjusted according to the size and hardness of the fish bones. During the adjustment, the infrared sensor monitors and controls the electric push bar 12 to drive the transmission gear of the cutting drum 11, causing the opening and closing control plate to rotate. The expansion guide column moves along the opening and closing arc groove, adjusting the amplitude of the expansion arc plate 112. The cutting teeth cut the fish bones into pieces. Then, the fish bone pieces enter the bone and meat separation device 2. After being buffered by the adaptation plate 27, they are placed between the filter screen plate 26 and the friction screen 24. The pressure spring 22 applies pressure through the pressure plate 23. The transmission shaft 114 is driven by the transmission belt 291, synchronous gear 292, etc., to make the two move relative to each other and grind. The fish meat is filtered by the filter screen plate 26 and falls out from the outlet. The fish bones are discharged along the filter screen plate 26 through the discharge plate 3.

[0048] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0049] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tuna bone and meat separation device, comprising a fish bone cutting device (1), characterized in that: The fish bone cutting device (1) has a feeding main board (4) at the middle of its rear end, a bone and meat separation device (2) at the front end, a discharge plate (3) at the front end, and several support legs (5) at the bottom of both the bone and meat separation device (2) and the fish bone cutting device (1). The feed main board (4) includes a feed plate (42), the front end of the feed plate (42) extends downward to the inside of the fishbone cutting device (1), the bottom end of the feed plate (42) is fixedly connected to the outer surface of the fishbone cutting device (1), and a spine guide groove (41) is provided in the middle of the top of the feed plate (42). The fishbone cutting device (1) includes a device housing (13). The bottom end of the device housing (13) is fixedly connected to the top of the support leg (5). The inside of the device housing (13) is connected to the bone and meat separation device (2). The inside of the device housing (13) is provided with two vertically parallel cutting cylinders (11). The two cutting cylinders (11) are mirror symmetrical. The right side of the two cutting cylinders (11) is rotatably connected to a telescopic adaptation column (14). The left end of the two cutting cylinders (11) is fixedly connected to a transmission component (15). The front side of the upper cutting cylinder (11) and the rear side of the lower cutting cylinder (11) are both meshed with electric push rods (12). The end of the electric push rod (12) away from the cutting cylinder (11) is fixedly connected to the inside of the device housing (13). The inside of the device housing (13) is provided with an infrared sensor for monitoring the height of the cutting cylinder (11). The telescopic end of the electric push rod (12) is a rack. The cutting drum (11) includes a drive shaft (114) rotatably connected to the left end of the transmission assembly (15). A drive motor is provided at the left end of the lower drive shaft (114). A cyclone-shaped support column (115) is fixedly connected to the middle of the outer surface of the drive shaft (114). An expansion arc plate (112) is rotatably connected to each outward angle of the outer surface of the support column (115). Several parallel cutting teeth are fixedly connected to the outer surface of the expansion arc plate (112). Several expansion arc plates (112) on the same side are... 112) can be formed into a cylindrical shape. An expansion guide post is fixedly connected to the left end of the expansion arc plate (112) away from the support column (115). An opening and closing control plate is rotatably connected to the left side of the outer surface of the transmission shaft (114). The opening and closing control plate has several opening and closing arc grooves that can pass through the expansion guide post. The several opening and closing arc grooves are arranged in a circular array with the center of the opening and closing control plate. A transmission gear is fixedly connected to the outer surface of the opening and closing control plate. The outer surface of the transmission gear is meshed with the telescopic end of the electric push bar (12). The telescopic adaptive column (14) includes an L-shaped inner cylinder connecting column (144). The left end of the inner cylinder connecting column (144) is rotatably connected to the right end of the lower transmission shaft (114) in the horizontal direction. The outer surface of the inner cylinder connecting column (144) in the horizontal direction is fixedly connected to the inside of the device housing (13). The top end of the inner cylinder connecting column (144) in the vertical direction is fixedly connected to a limiting plate (142). An adaptive spring (143) is fixedly connected to the outer side of the bottom end of the limiting plate (142). The outer surface of the inner cylinder connecting column (144) and the limiting plate (142) are together fitted with an L-shaped outer cylinder connecting column (141). The left end of the outer cylinder connecting column (141) in the horizontal direction is rotatably connected to the right end of the upper transmission shaft (114). The bottom end of the adaptive spring (143) is fixedly connected to the bottom end of the outer cylinder connecting column (141) in the vertical direction. The transmission assembly (15) includes two drive gears (151) that are rotatably connected to the left end of the outer surface of the transmission shaft. The two drive gears (151) are parallel to each other. A connecting gear (153) is meshed with the outer side of the drive gears (151). The two connecting gears (153) mesh with each other. The drive gears (151) and the adjacent connecting gears (153) are rotatably connected to a first connecting rod (152). The outer surfaces of the two connecting gears (153) are rotatably connected to a second connecting rod (154).

2. The tuna bone and meat separation device according to claim 1, characterized in that: The bone and meat separation device (2) includes a device body (21). The outer surface of the device body (21) is fixedly connected to the front of the inner side of the device shell (13). The device body (21) has an outlet that communicates with the outside. A filter screen plate (26) is fixedly connected to the inside of the device body (21) above the outlet. The front end of the filter screen plate (26) is inclined downward and fixedly connected to the rear end of the outlet plate (3). Baffles (25) are fixedly connected to both the left and right sides of the filter screen plate (26). The rear end of the filter screen plate (26) is connected to an adaptation plate (27) by several springs. The inner side of the plate (27) is slidably connected to the outer surface of the rear end of the filter screen plate (26). The top of the filter screen plate (26) is provided with a friction screen (24). The top of the friction screen (24) is slidably connected with a pressure plate (23). The top of the pressure plate (23) is fixedly connected with several pressure springs (22). The top of the pressure springs (22) is fixedly connected to the inside of the main body (21) of the device. The lower outer angle of the friction screen (24) near the cutting drum (11) is inclined. The friction screen (24) and the left end of the filter screen plate (26) are jointly provided with a friction drive assembly (29).

3. The tuna bone and meat separation device according to claim 2, characterized in that: The friction drive assembly (29) includes a drive column (295) rotatably connected to the middle of the left end of the filter screen plate (26). A sliding groove (297) is provided on the side of the drive column (295) away from the filter screen plate (26). A driven column (296) is movably connected inside the sliding groove (297). The right end of the driven column (296) is fixedly connected to the middle of the left end of the friction screen (24). A driven gear (294) is fixedly connected to the left end of the connection between the drive column (295) and the filter screen plate (26). The driving gear (294) is provided with a special gear (293) on both the front and rear sides. Both special gears (293) can mesh with the driven gear (294). The left end of the special gear (293) is fixedly connected to a synchronous gear (292). The two synchronous gears (292) mesh with each other. The left end of the rear synchronous gear (292) is movably connected to the outer surface of the lower transmission shaft (114) with a transmission belt (291). The left end of the synchronous gear (292) is rotatably connected to the inside of the main body (21) of the device.

4. The tuna bone and meat separation device according to claim 3, characterized in that: The driven gear (294) meshes with only one of the non-standard gears (293) at a time, and the number of teeth of the non-standard gear (293) is half that of the driven gear (294).

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