Fish opening device with eight blades and three pieces and method

Abstract

The present application discloses a fish cutting device with eight blades and three pieces, comprising a main frame, a feeding system, a cutting system, a discharge port and a debris removal port; the feeding system is arranged on the inner side of the main frame, and the feeding system comprises a fixed frame arranged at the front end of the inner side of the main frame, a feeding rack for placing fish bodies is arranged on the fixed frame, and a conveying mechanism is also arranged on the inner side of the main frame, and the conveying mechanism is used to convey the fish bodies on the feeding rack; there are two cutting systems, and the two cutting systems are respectively arranged on both sides of the main frame; the discharge port is arranged at one end of the main frame away from the feeding rack; the debris removal port is arranged in the middle of the inner side of the main frame. The present application can separate the fish meat from both sides of the middle bone, and the fish body is cut into three pieces, namely one piece of fish middle bone and two pieces of fish fillet, so that the fish meat on the entire middle bone is completely removed, thereby ensuring the maximum meat yield, and its cutting effect is close to that of manual cutting, thereby reducing the fish meat loss during the fish cutting process.

Description

Technical Field

[0001] The present application relates to the technical field of aquatic product primary processing machinery, and in particular to a fish opening device and method using eight blades and three pieces. Background Art

[0002] With the development of the aquatic product processing industry and the increase in labor costs, the gradual reduction of the labor force has put forward the demand for mechanization of fisheries. High-quality and efficient mechanized processing has become an inevitable requirement. Therefore, the research and development of key technologies and equipment for aquatic product processing to achieve high-quality and efficient production of aquatic products is of great practical significance.

[0003] Cutting, a key step in the primary processing of fish, involves cutting through the belly and dorsal sections, as well as splitting into two or three pieces. Cutting the fish body produces fillets, facilitating subsequent processing. Domestic research on fish cutting technology primarily focuses on the belly and dorsal sectioning process. Huazhong Agricultural University has developed a chain-type fish cutter and a belt-type, clamp-feed freshwater fish cutter, enabling freshwater fish cutter removal. To reduce fish damage during the deveining process and increase visceral removal rates, the Fisheries Machinery and Instrument Research Institute conducted experimental research on optimizing cutting tools for horse mackerel deveining. Currently, research on splitting into three pieces of fish is limited in China, and no practical equipment has been developed. Research on multifunctional cutting technology is underway internationally. Japan has developed the FSS series of cutters, which can perform belly, dorsal, split into two pieces, and split into three pieces. However, splitting into three pieces suffers from significant fish flesh loss.

[0004] In view of the above-mentioned related technologies, the inventors believe that three-piece opening is a weak link in the primary processing of fish, and there are problems such as lack of key equipment, large fish meat loss, and low meat yield. The market needs a practical equipment that can reduce fish meat loss, increase fish meat yield, and has strong adaptability. Summary of the Invention

[0005] The purpose of the present application is to provide a fish opening device with eight blades and three pieces, so as to solve the problem that three pieces opening is a weak link in the primary processing of fish, which is accompanied by a lack of key equipment, a large loss of fish meat, and a low meat yield.

[0006] On the one hand, the present application provides a fish eight-blade three-piece opening device and method using the following technical solutions:

[0007] A fish cutting device with eight blades and three pieces, comprising a main frame, a feeding system, a cutting system, a discharge port and a debris discharge port;

[0008] The feeding system is arranged on the inner side of the main frame, and the feeding system includes a fixing frame arranged at the front end of the inner side of the main frame, and a feeding rack for placing fish bodies is provided on the fixing frame. The inner side of the main frame is also provided with a conveying mechanism, and the conveying mechanism is used to convey the fish bodies on the feeding rack;

[0009] The cutting system is provided with two, and the two cutting systems are respectively provided on both sides of the main frame. The cutting system includes a sub-frame movably provided on one side of the main frame, one side of the sub-frame cooperates with one side of the conveying mechanism, and the sub-frame is provided with four adjustment seats, and the four adjustment seats are rotatably provided with a knife shaft, one end of the four knife shafts is connected to a blade, and the other end is connected to a driving member;

[0010] The discharge port is provided at one end of the main frame away from the feeding rack, so as to be used for sliding and collecting the fish fillets;

[0011] The debris discharge port is arranged in the middle of the inner side of the main frame and is located between the feeding rack and the discharge port, so as to be used for sliding and collecting fish bones.

[0012] Furthermore, there are eight blades, namely blade A, blade B, blade C, blade D, blade E, blade F, blade G and blade H; wherein blade A, blade B, blade C and blade D are respectively located on the right side of the feeding rack, and blade E, blade F, blade G and blade H are respectively located on the left side of the feeding rack; and blade A, blade B, blade C, blade D are respectively symmetrical with blade E, blade F, blade G, blade H.

[0013] Furthermore, blade A and blade B form an upper and lower group, which are placed in the front, and a certain gap is set between blade A and blade B, and blade A and blade B rotate clockwise; blade C and blade D form an upper and lower group, which are placed in the back, and blade C and blade D contact each other, and blade C and blade D rotate counterclockwise.

[0014] Furthermore, the conveying mechanism includes a driven shaft rotatably arranged on one side of the rear end of the main frame, a driven pulley is provided at the top end of the driven shaft, a driven tensioning pulley is rotatably arranged on one side of the front end of the main frame through a first adjusting member, a driven conveyor belt is wound between the driven tensioning pulley and the driven pulley, a driven gear is also provided at the bottom end of the driven shaft, and a driving assembly for driving the driven gear to rotate is also provided on the other side of the main frame, and the main frame and the driven shaft are also matched with one of the sub-frames through a first fastening assembly.

[0015] Furthermore, the driving assembly includes a horizontal motor support arranged on one side of the rear end of the main frame, a driving shaft is rotatably arranged on the horizontal motor support, a driving pulley is arranged on the top of the driving shaft, a horizontal motor is arranged on the horizontal motor support, the output end of the horizontal motor and the driving shaft are matched with the commutator to drive the driving shaft to rotate, an active tensioning pulley is rotatably arranged on one side of the front end of the main frame through a second adjusting member, an active conveyor belt is wound between the active tensioning pulley and the driving pulley, and a driving gear meshing with the driven gear is also provided at the bottom end of the driving shaft, and the main frame and the driving shaft are also matched with the other sub-frame through a second fastening assembly.

[0016] Furthermore, the first fastening assembly includes a driven base arranged on the main frame, the driven shaft is rotatably arranged inside the driven base through a bearing, and the outer rotating sleeve of the driven base is provided with a right rotating seat that cooperates with the sub-frame; the second fastening assembly includes an active base arranged on the main frame, the active shaft is rotatably arranged inside the active base through a bearing, and the outer rotating sleeve of the active base is provided with a left rotating seat that cooperates with the sub-frame.

[0017] Furthermore, a plurality of tensioning adjustment mechanisms are symmetrically arranged on the top of one side of the two sub-frames, and the plurality of tensioning adjustment mechanisms are respectively coordinated with the active conveyor belt and the driven conveyor belt. The tensioning adjustment mechanism includes a connecting seat arranged on the top of the sub-frame, a connecting column is rotatably arranged on the connecting seat, a rotating seat is arranged on the connecting column, a roller is rotatably arranged on the bottom of the rotating seat, and a tensioning roller is rotatably arranged on the end of the roller away from the rotating seat, and the tensioning roller is tightly pressed against the inner side of the active conveyor belt or the inner side of the driven conveyor belt, a linkage component is also arranged between the two symmetrical connecting columns, and an elastic adjustment component is also arranged between the two symmetrical rotating seats.

[0018] Furthermore, the linkage assembly includes gear plates symmetrically rotatably arranged on the two connecting columns, the two gear plates are meshed with each other, and a sliding limiter is provided between the gear plate and the rotating seat to limit the rotation angle of the gear plate.

[0019] Furthermore, the elastic adjustment component includes a first adjustment plate arranged on one of the rotating seats, and a second adjustment plate is arranged on the other rotating seat. The first adjustment plate is threadedly connected to an adjustment bolt, and an adjustment spring is connected to the threaded end of the adjustment bolt. The end of the adjustment spring away from the adjusting bolt is connected to an adjustment rod, and a slot is provided on the second adjustment plate, and a plurality of blocks that are engaged with the slot are provided on the adjustment rod.

[0020] On the other hand, the present application provides a method for opening fish with eight blades and three pieces, which comprises the following steps:

[0021] S1: Adjust the positions and angles of the eight blades to the appropriate state according to the size of the fish to be sectioned;

[0022] S2: The fish body that has been headed and gutted is then placed on the feeding rack of the fixed rack with its fins facing downward and its head facing the conveying direction. The horizontal motor on the horizontal motor support is started. The output end of the horizontal motor drives the driving shaft to rotate through the commutator. The driving shaft simultaneously drives the driving pulley and the driving gear to rotate. The driving pulley, under the action of the active tensioning pulley, causes the active conveyor belt to move from the feeding rack to the discharge port.

[0023] S3: At the same time, the driving gear drives the driven gear to rotate during the rotation process, and the driven gear drives the driven pulley on the driven shaft to rotate. Under the action of the driven tension pulley, the driven pulley causes the driven conveyor belt to move from the feeding rack to the discharge port, so that the driving conveyor belt and the driven conveyor belt can simultaneously clamp the fish placed on the feeding rack to clamp and convey the fish;

[0024] S4: Then, the driving members on the eight adjustment seats are simultaneously activated. The output ends of the eight driving members respectively drive the blades on the knife shaft to rotate. At this time, the front blades composed of blades A, blade B, blade E, and blade F separate the fish meat and the spine on the upper and lower sides of the fish bone. Then, the fish body continues to be transported backward. The rear blades composed of blades C, blade D, blade G, and blade H are attached to the outer side of the fish bone to separate the fish meat from both sides of the bone, so that the fish body is cut into three pieces, namely, one fish bone and two fish fillets.

[0025] S5: At this time, the fish bones fall down from the gap formed by the eight blades to the discharge port, and the two fish fillets continue to be transported backward under the friction of the active conveyor belt and the driven conveyor belt, and finally slide out from the discharge port, thus completing the three-piece cutting process of the fish body.

[0026] Compared with the existing technology, the beneficial effect of the present application is that: by setting a structure in which the main frame, feeding system, cutting system, discharge port and debris discharge port cooperate with each other, the fish meat can be separated from both sides of the middle bone, and the fish body is cut into three pieces, namely one fish middle bone and two fish fillets, so that the fish meat on the entire middle bone is completely removed, thereby ensuring the maximum meat yield, and its cutting effect is close to manual cutting, thereby reducing the loss of fish meat during the fish cutting process.

[0027] At the same time, by adjusting the position and angle of the eight blades, it can adapt to the needs of three-piece cutting of fish of different specifications and types; compared with the parallel arrangement of double-blade cutting method, the combined cutting of the front and rear knives can separate the fish meat above and below the bones of the fish body, ensuring a higher meat yield, thereby achieving a mechanized and high-quality cutting effect.

[0028] Furthermore, the multiple tensioning mechanisms and the eight-blade, three-opening structure are pivoted on the main frame to open and close, similar to the opening and closing of a door. The closing action enhances the reliability of the combined cutting method, while the opening action allows for easy separation of the multiple tensioning mechanisms and the eight-blade, three-opening structure, facilitating adjustment and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the eight-blade three-piece fish opening device according to an embodiment of the present application.

[0030] Figure 2 yes Figure 1 Right view of .

[0031] Figure 3 It is a structural diagram of the conveying mechanism of an embodiment of the present application.

[0032] Figure 4 It is a structural schematic diagram of the sub-frame, driven tension pulley, first adjusting member and driven conveyor belt in an embodiment of the present application.

[0033] Figure 5 It is a structural diagram of the driving component of an embodiment of the present application.

[0034] Figure 6 It is a structural diagram of the cutting system of an embodiment of the present application.

[0035] Figure 7 This is a schematic diagram of the structure of eight blades when cut in an embodiment of the present application.

[0036] Figure 8 This is a schematic diagram of the front and rear positions of eight blades in an embodiment of the present application.

[0037] Figure 9 It is a structural schematic diagram of the tensioning adjustment mechanism of an embodiment of the present application.

[0038] Explanation of the accompanying symbols: 1. Main frame; 11. Discharge port; 12. Trash discharge port; 2. Feeding system; 21. Fixed frame; 22. Feeding frame; 23. Conveying mechanism; 231. Driven shaft; 232. Driven pulley; 233. Driven tensioning pulley; 234. First adjusting member; 235. Driven conveyor belt; 236. Driven gear; 24. Driving assembly; 241. Horizontal motor support; 242. Driving shaft; 243. Driving pulley; 244. Horizontal motor; 245. Driving tensioning pulley; 246. Second adjusting member; 247. Driving conveyor belt; 248. Driving gear; 3. Cutting system; 31. Sub-frame; 32. Adjusting seat; 33. Knife shaft; 34. Blade; 3 41. Blade A; 342. Blade B; 343. Blade C; 344. Blade D; 345. Blade E; 346. Blade F; 347. Blade G; 348. Blade H; 35. Cutting motor; 4. Tensioning adjustment mechanism; 41. Connecting seat; 42. Connecting column; 43. Rotating seat; 44. Roller; 45. Tensioning roller; 46. Linkage assembly; 461. Gear plate; 462. Sliding limiter; 47. Elastic adjustment assembly; 471. First adjusting plate; 472. Second adjusting plate; 473. Adjusting bolt; 474. Adjusting spring; 475. Adjusting rod; 476. Block; 5. Driven base; 51. Right rotating seat; 6. Active base; 61. Left rotating seat. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-9 This application is described in further detail.

[0040] On the one hand, the embodiment of the present application discloses a fish eight-blade three-piece opening device, referring to Figure 1 and Figure 2 In this embodiment, the fish eight-blade three-piece cutting device includes a main frame 1, a feeding system 2, a cutting system 3, a discharge port 11, and a debris discharge port 12. The feeding system 2 is installed at the front end of the inner side of the main frame 1 to transport the fish to be cut; two cutting systems 3 are provided, and the two cutting systems 3 are installed on the left and right sides of the main frame 1 respectively to perform three-piece cutting on the fish; the discharge port 11 is installed at the end of the main frame 1 away from the feeding system 2 to slide and collect the fish fillets; the debris discharge port 12 is installed in the middle of the inner side of the main frame 1, and the debris discharge port 12 is located between the feeding system 2 and the discharge port 11 to slide and collect the fish bones.

[0041] Therefore, by setting up a structure in which the main frame 1, the feeding system 2, the cutting system 3, the discharge port 11 and the debris discharge port 12 cooperate with each other, the fish meat can be separated from the two sides of the middle bone, and the fish body is cut into three pieces, namely one fish middle bone and two fish fillets, so that the fish meat on the entire middle bone is completely removed, thereby ensuring the maximum meat yield. The cutting effect is close to that of manual cutting, thereby reducing the loss of fish meat during the fish cutting process.

[0042] The structures of the feeding system 2 and the cutting system 3 are described in detail below:

[0043] Specifically, refer to Figure 1 and Figure 2 In this embodiment, the feeding system 2 includes a fixed frame 21, a feeding frame 22, and a conveying mechanism 23. The fixed frame 21 is mounted on the inner front end of the main frame 1; the feeding frame 22 is mounted on top of the fixed frame 21 and is used to position and position the fish. When cutting the fish, the headed and eviscerated fish are placed on the feeding frame 22 with their fins facing downward and their heads facing the conveying direction.

[0044] The conveying mechanism 23 is arranged on the inner side of the main frame 1 to convey the fish bodies on the feeding rack 22. Figure 3 and Figure 4 In this embodiment, the conveying mechanism 23 includes a driven shaft 231, a driven pulley 232, a driven tensioning pulley 233, a first adjusting member 234, a driven conveyor belt 235, a driven gear 236, and a driving assembly 24. The driven shaft 231 is rotatably mounted on the rear end side of the main frame 1 and is vertically arranged upward; the driven pulley 232 is mounted on the top end of the driven shaft 231; and the driven tensioning pulley 233 is rotatably mounted on the front end side of the main frame 1 via the first adjusting member 234. The driven tensioning pulley 233 and the driven pulley 232 are located on the same side and have the same height. The first adjusting member 234 not only effectively supports and secures the driven tensioning pulley 233 but also allows the position of the driven tensioning pulley 233 to be moved and adjusted.

[0045] The driven conveyor belt 235 is wound and installed between the driven tensioning pulley 233 and the driven pulley 232 at the same time. The outer side of the driven conveyor belt 235 is arranged close to the outer side of the feeding rack 22; the driven gear 236 is installed at the bottom end of the driven shaft 231; the driving assembly 24 is arranged on the side of the main frame 1 away from the driven conveyor belt 235, and the driving assembly 24 and the driven gear 236 cooperate with each other to drive the driven gear 236 to rotate, and the driven gear 236 drives the driven pulley 232 on the driven shaft 231 to rotate, and then under the action of the driven tensioning pulley 233, the driven conveyor belt 235 is rotated.

[0046] More specifically, refer to Figure 2 and Figure 5 In this embodiment, the driving assembly 24 includes a horizontal motor support 241, a driving shaft 242, a driving pulley 243, a horizontal motor 244, an active tensioning pulley 245, a second adjusting member 246, an active conveyor belt 247 and a driving gear 248. Among them, the horizontal motor support 241 is installed at the bottom of one side of the rear end of the main frame 1; the driving shaft 242 is rotatably installed on the horizontal motor support 241, and the driving shaft 242 is arranged vertically upward; the driving pulley 243 is installed at the top of the driving shaft 242, and the driving pulley 243 and the driven pulley 232 correspond to each other and have the same height; the horizontal motor 244 is installed on one side of the horizontal motor support 241, and a commutator is installed between the horizontal motor support 241 and the driving shaft 242, and a high-precision spiral bevel gear set is arranged inside the commutator, and the bottom end of the driving shaft 242 is installed on the output end of the high-precision spiral bevel gear set, and the output end of the horizontal motor 244 is connected to the input end of the high-precision spiral bevel gear set.

[0047] When the horizontal motor 244 is started, the transmission direction can be changed by the action of the commutator, so that the horizontal motor 244 can drive the driving shaft 242 to rotate, and the driving shaft 242 drives the driving pulley 243 to rotate.

[0048] The active tensioning pulley 245 is rotatably installed on the front end side of the main frame 1 through the second adjusting member 246. The active tensioning pulley 245 and the active pulley 243 are located on the same side and have the same height. Through the setting of the second adjusting member 246, not only can the active tensioning pulley 245 be effectively loaded and fixed, but the position of the active tensioning pulley 245 can also be moved and adjusted.

[0049] At the same time, the active conveyor belt 247 is wound and installed between the active tensioning pulley 245 and the active pulley 243. The outer side of the active conveyor belt 247 is arranged close to the outer side of the feeding rack 22 and is symmetrical with the driven conveyor belt 235, so that the fish bodies on the feeding rack 22 can be clamped and conveyed; the driving gear 248 is installed at the bottom end of the driving shaft 242, the driving gear 248 is located above the commutator, and the driving gear 248 and the driven gear 236 are engaged with each other to realize power transmission and synchronous rotation, thereby realizing the effect of synchronous conveying of the active conveyor belt 247 and the driven conveyor belt 235.

[0050] When the horizontal motor 244 on the horizontal motor support 241 is started, the output end of the horizontal motor 244 drives the driving shaft 242 to rotate under the reversing action of the commutator, and the driving shaft 242 simultaneously drives the driving pulley 243 and the driving gear 248 to rotate. The driving pulley 243, under the action of the active tensioning pulley 245, causes the active conveyor belt 247 to move from the feeding frame 22 to the discharge port 11.

[0051] At the same time, the driving gear 248 drives the driven gear 236 to rotate during the rotation process, and the driven gear 236 drives the driven pulley 232 on the driven shaft 231 to rotate. Under the action of the driven tensioning pulley 233, the driven pulley 232 causes the driven conveyor belt 235 to also move from the feeding rack 22 toward the discharge port 11, so that the driving conveyor belt 247 and the driven conveyor belt 235 simultaneously clamp the fish body placed on the feeding rack 22 to clamp and convey the fish body.

[0052] In addition, specifically, refer to Figure 1 and Figure 6 In this embodiment, the cutting system 3 includes a sub-frame 31, an adjustment seat 32, a knife shaft 33, a blade 34 and a driving member. The sub-frame 31 is movably mounted on one side of the main frame 1. Specifically, the two sub-frames 31 on the two cutting systems 3 are respectively located on the left and right sides of the main frame 1, and a first fastening assembly is provided between the right side of the main frame 1 and the driven shaft 231, and a second fastening assembly is provided between the left side of the main frame 1 and the driving shaft 242. The first fastening assembly cooperates with the sub-frame 31 on the right side, and the second fastening assembly cooperates with the sub-frame 31 on the left side to respectively fix the two sub-frames 31 on the left and right sides, so that the two sub-frames 31 can swing with the first fastening assembly and the second fastening assembly as the axis, thereby realizing opening and closing rotation, similar to the effect of opening and closing a door.

[0053] At the same time, there are four adjustment seats 32, which are respectively installed on one side of the sub-frame 31; there are four knife shafts 33, which are respectively rotatably installed on the four adjustment seats 32, and these knife shafts 33 are horizontally arranged, extending in the direction of the feeding rack 22; there are four blades 34, which are respectively installed on one end of the four knife shafts 33 facing the feeding rack 22, and these blades 34 are located between the active conveyor belt 247 and the driven conveyor belt 235; there are four driving members, all of which are cutting motors 35, which are respectively installed on the four adjustment seats 32, and the output ends of the four cutting motors 35 are respectively connected to the ends of the four knife shafts 33 away from the blades 34.

[0054] When the four cutting motors 35 are started, the output ends of the four cutting motors 35 respectively drive the four knife shafts 33 to rotate, and the four knife shafts 33 respectively drive the four blades 34 to rotate, so as to cut the fish body on the feeding rack 22.

[0055] More specifically, refer to Figure 7 and Figure 8 In this embodiment, eight blades 34 are provided, and the eight blades 34 are placed in the clamping channel between the active conveyor belt 247 and the driven conveyor belt 235, and the eight blades 34 are respectively blade A341, blade B342, blade C343, blade D344, blade E345, blade F346, blade G347 and blade H348; among them, blade A341, blade B342, blade C343 and blade D344 are respectively located on the right side of the feeding rack 22, while blade E345, blade F346, blade G347 and blade H348 are respectively located on the left side of the feeding rack 22.

[0056] Preferably, in this embodiment, blade A341 and blade B342 form an upper and lower group, which are placed in the front, and a certain gap is set between blade A341 and blade B342, and blade A341 and blade B342 rotate clockwise; blade C343 and blade D344 form an upper and lower group, which are placed in the back, and blade C343 and blade D344 contact each other, and blade C343 and blade D344 rotate counterclockwise.

[0057] At the same time, blade A341, blade B342, blade C343, and blade D344 are symmetrical with blade E345, blade F346, blade G347, and blade H348 respectively. Therefore, in this embodiment, blade E345 and blade F346 form an upper and lower group, which are placed in the front, and a certain gap is set between blade E345 and blade F346, and blade E345 and blade F346 rotate clockwise; blade G347 and blade H348 form an upper and lower group, which are placed in the back, and blade G347 and blade H348 are in contact with each other, and blade G347 and blade H348 rotate counterclockwise.

[0058] Therefore, when the eight cutting motors 35 are started, the eight cutting motors 35 respectively drive the blades 34 on the knife shaft 33, so that the front knife composed of blade A341, blade B342, blade E345, and blade F346 separates the fish meat and the vertebrae on the upper and lower sides of the fish bone; at the same time, the rear knife composed of blade C343, blade D344, blade G347, and blade H348 sticks to the outer side of the fish bone to separate the fish meat from the two sides of the fish bone, thereby cutting the fish body into three pieces, namely one fish bone and two fish fillets, and finally making the fish bone fall downward from the gap formed by the eight blades 34 to the rubbish discharge port 12, while the two fish fillets continue to be transported backward under the friction of the active conveyor belt 247 and the driven conveyor belt 235, and finally slide out from the discharge port 11, thereby completing the three-piece cutting operation process of the fish body with a high meat yield.

[0059] In this way, by adjusting the positions and angles of the eight blades 34, the needs of cutting three pieces of fish of different specifications and types can be met; compared with the cutting method of the two blades 34 arranged in parallel, the fish meat above and below the bones of the fish body can be separated by the combined cutting of the front knife and the back knife, ensuring a higher meat yield, thereby achieving a mechanized and high-quality cutting effect.

[0060] In addition, refer to Figure 9 In this embodiment, five tensioning adjustment mechanisms 4 are symmetrically installed on the top of one side of the two sub-frames 31. These tensioning adjustment mechanisms 4 cooperate with the active conveyor belt 247 and the driven conveyor belt 235 respectively to achieve an effective adjustment effect on the tension of the active conveyor belt 247 and the driven conveyor belt 235, so that the active conveyor belt 247 and the driven conveyor belt 235 can clamp and convey fish bodies of different types and sizes.

[0061] Specifically, in this embodiment, the tension adjustment mechanism 4 includes a connecting base 41, a connecting post 42, a rotating base 43, a roller 44, a tension roller 45, a linkage assembly 46, and an elastic adjustment assembly 47. The connecting base 41 is mounted on the top of the sub-frame 31; the connecting post 42 is mounted on the top surface of the connecting base 41; the rotating base 43 is rotatably mounted on the connecting post 42; one end of the roller 44 is rotatably mounted on the bottom of the rotating base 43, and the other end of the roller 44 extends vertically downward.

[0062] The tensioning roller 45 is rotatably mounted on the end of the roller shaft 44 away from the rotating seat 43, and the tensioning roller 45 is pressed against the inner side of the active conveyor belt 247 or the inner side of the driven conveyor belt 235; more specifically, the tensioning rollers 45 located on the left side are pressed against the inner side of the active conveyor belt 247 close to the feeding rack 22, and the tensioning rollers 45 located on the right side are pressed against the inner side of the driven conveyor belt 235 close to the feeding rack 22.

[0063] At the same time, the linkage component 46 is arranged between the two connecting columns 42 on the left and right sides to realize the simultaneous rotation of the two symmetrical connecting columns 42 on the left and right sides; the elastic adjustment component 47 is arranged between the two rotating seats 43 on the left and right sides to realize the effective adjustment of the distance between the two symmetrical rotating seats 43 on the left and right sides, so that the two symmetrical tensioning rollers 45 on the left and right sides are close to or away from each other, and then the tension of the active conveyor belt 247 and the driven conveyor belt 235 are adjusted at the same time.

[0064] Specifically, refer to Figure 9 In this embodiment, the linkage assembly 46 includes a gear plate 461 and a sliding stopper 462. Two gear plates 461 are provided, symmetrically mounted on two connecting columns 42. The two gear plates 461 are located above the two rotating seats 43, and the opposing sides of the two gear plates 461 mesh with each other, enabling synchronous movement of the two tensioning rollers 45, thereby ensuring symmetry between the driving conveyor belt 247 and the driven conveyor belt 235.

[0065] There are two sliding limit members 462, which are respectively installed between the two gear plates 461 and the two rotating seats 43; the sliding limit members 462 are limit bolts, and a sliding limit hole is opened on one side of the gear plate 461, and a threaded hole is opened on the rotating seat 43. The limit bolt passes through the sliding limit hole and is threadedly connected to the threaded hole, so that the rotating seat 43 drives the gear plate 461 to rotate through the limit bolt; at the same time, the setting of the sliding limit hole also limits the rotation angle of the gear plate 461.

[0066] Specifically, refer to Figure 9 In this embodiment, the elastic adjustment assembly 47 includes a first adjustment plate 471, a second adjustment plate 472, an adjustment bolt 473, an adjustment spring 474, an adjustment rod 475, and a clamping block 476. The first adjustment plate 471 is mounted on one of the rotating seats 43; the second adjustment plate 472 is mounted on the other symmetrical rotating seat 43; the adjustment bolt 473 is threadedly connected to the first adjustment plate 471; one end of the adjustment spring 474 is connected to the threaded end of the adjustment bolt 473; one end of the adjustment rod 475 is connected to the end of the adjustment spring 474 away from the adjustment bolt 473; and a plurality of clamping blocks 476 are provided. The plurality of clamping blocks 476 are respectively mounted on the rod body of the adjustment rod 475, with a gap between adjacent two clamping blocks 476. A clamping slot is provided on the second adjustment plate 472, and the gap and the clamping slot are engaged with each other, thereby limiting the end of the adjustment rod 475 away from the adjustment spring 474.

[0067] By engaging the gaps at different positions on the adjustment rod 475 with the slots, the adjustment spring 474 can be pulled, stretched, and reset, thereby moving the two tension rollers 45 closer to or farther from each other, thereby increasing or decreasing the tension of the driving conveyor belt 247 and the driven conveyor belt 235. At the same time, by twisting the adjustment bolt 473, the tension of the driving conveyor belt 247 and the driven conveyor belt 235 can also be effectively adjusted.

[0068] Next, the structures of the first fastening assembly and the second fastening assembly are described in detail below:

[0069] Better, refer to Figure 3 and Figure 5 Specifically, the first fastening assembly includes a driven base 5 and a right rotating base 51. The driven base 5 is mounted on the main frame 1, and the driven shaft 231 is rotatably mounted inside the driven base 5 via a bearing, so that the driven shaft 231 can rotate on the driven base 5; the right rotating base 51 is rotatably sleeved on the outside of the driven base 5, and the right rotating base 51 is fixedly mounted on one side of the sub-frame 31 on the right side through the cooperation of multiple bolts and nuts, thereby effectively fixing and bearing the sub-frame 31 on the right side, thereby allowing the sub-frame 31 on the right side to swing on the right side of the main frame 1 with the right rotating base 51 and the driven base 5 as the axis.

[0070] Specifically, the second fastening assembly includes an active base 6 and a left rotating base 61. The active base 6 is mounted on the main frame 1, and the active shaft 242 is rotatably mounted inside the active base 6 via a bearing, so that the active shaft 242 can rotate on the active base 6; the left rotating base 61 is rotatably sleeved on the outside of the active base 6, and the left rotating base 61 is fixedly mounted on one side of the sub-frame 31 on the left side through the cooperation of multiple bolts and nuts, thereby effectively fixing and bearing the sub-frame 31 on the left side, thereby allowing the sub-frame 31 on the left side to swing on the left side of the main frame 1 with the left rotating base 61 and the active base 6 as the axis.

[0071] Therefore, by providing a structure in which the driven base 5, the right rotating base 51, the active base 6, and the left rotating base 61 cooperate with each other, the sub-frames 31 located on the left and right sides of the main frame 1 can be opened and closed, similar to the opening and closing of a door. Simultaneously, the tensioning mechanism 4 and the eight-blade 34 three-piece structure are mounted on the left and right sub-frames 31. This allows for a more reliable cutting method by combining the tensioning mechanism 4 and the eight-blade 34 three-piece structure through the closing action. Through the opening action, after the active conveyor belt 247 and the driven conveyor belt 235 are disassembled, the tensioning mechanism 4 and the eight-blade 34 three-piece structure can be easily separated, facilitating adjustment and disassembly.

[0072] On the other hand, the present application provides a method for opening fish with eight blades and three pieces, which comprises the following steps:

[0073] S1: According to the size of the fish to be cut, the positions and angles of the eight blades 34 are adjusted to a suitable state;

[0074] S2: The fish body that has been headed and gutted is then placed on the feeding rack 22 of the fixed rack 21 with its fins facing downward and its head facing the conveying direction. The horizontal motor 244 on the horizontal motor support 241 is started. The output end of the horizontal motor 244 drives the driving shaft 242 to rotate through the commutator. The driving shaft 242 simultaneously drives the driving pulley 243 and the driving gear 248 to rotate. The driving pulley 243, under the action of the active tensioning pulley 245, causes the active conveyor belt 247 to move from the feeding rack 22 to the discharge port 11.

[0075] S3: At the same time, the driving gear 248 drives the driven gear 236 to rotate during the rotation process, and the driven gear 236 drives the driven pulley 232 on the driven shaft 231 to rotate. Under the action of the driven tensioning pulley 233, the driven pulley 232 causes the driven conveyor belt 235 to move from the feeding rack 22 to the discharge port 11, so that the driving conveyor belt 247 and the driven conveyor belt 235 can simultaneously clamp the fish placed on the feeding rack 22 to clamp and convey the fish;

[0076] S4: Then, the eight cutting motors 35 on the adjustment bases 32 are simultaneously started. The output ends of the eight cutting motors 35 respectively drive the blades 34 on the knife shaft 33 to rotate. At this time, the front blade composed of blade A341, blade B342, blade E345, and blade F346 separates the fish meat and the spine on the upper and lower sides of the fish bone. Then, the fish body continues to be transported backward. The rear blade composed of blade C343, blade D344, blade G347, and blade H348 sticks to the outer side of the fish bone to separate the fish meat from both sides of the bone, so that the fish body is cut into three pieces, namely, one fish bone and two fish fillets.

[0077] S5: At this time, the fish bones fall downward from the gap formed by the eight blades 34 to the discharge port 12, and the two fish fillets continue to be transported backward under the friction of the active conveyor belt 247 and the driven conveyor belt 235, and finally slide out from the discharge port 11, thus completing the three-piece cutting process of the fish body.

[0078] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fish opening device with eight blades and three pieces, characterized by: It comprises a main frame (1), a feeding system (2), a cutting system (3), a discharge port (11) and a debris discharge port (12); The feeding system (2) is arranged on the inner side of the main frame (1), and the feeding system (2) includes a fixed frame (21) arranged on the front end of the inner side of the main frame (1), and a feeding frame (22) for placing fish bodies is arranged on the fixed frame (21). A conveying mechanism (23) is also arranged on the inner side of the main frame (1), and the conveying mechanism (23) is used to convey the fish bodies on the feeding frame (22); There are two cutting systems (3), which are respectively arranged on both sides of the main frame (1). The cutting system (3) includes a sub-frame (31) movably arranged on one side of the main frame (1), one side of the sub-frame (31) cooperates with one side of the conveying mechanism (23), and four adjustment seats (32) are arranged on the sub-frame (31), and knife shafts (33) are rotatably arranged on the four adjustment seats (32). One end of the four knife shafts (33) is connected to a blade (34), and the other end is connected to a driving member; The discharge port (11) is provided at one end of the main frame (1) away from the feeding rack (22) for collecting the fish fillets by sliding. The debris discharge port (12) is arranged in the middle of the inner side of the main frame (1) and is located between the feeding rack (22) and the discharge port (11) for sliding and collecting fish bones; The blades (34) are provided with eight, namely blade A (341), blade B (342), blade C (343), blade D (344), blade E (345), blade F (346), blade G (347) and blade H (348); wherein blade A (341), blade B (342), blade C (343) and blade D (344) are respectively located on the right side of the feeding rack (22), and blade E (345), blade F (346), blade G (347) and blade H (348) are respectively located on the left side of the feeding rack (22); and blade A (341), blade B (342), blade C (343) and blade D (344) are respectively symmetrical with blade E (345), blade F (346), blade G (347) and blade H (348); Blade A (341) and blade B (342) form an upper and lower group and are placed in the front, and a certain gap is set between blade A (341) and blade B (342), and blade A (341) and blade B (342) rotate clockwise; blade C (343) and blade D (344) form an upper and lower group and are placed in the rear, and blade C (343) and blade D (344) contact each other, and blade C (343) and blade D (344) rotate counterclockwise.

2. The fish opening device with eight blades and three pieces according to claim 1, characterized in that: The conveying mechanism (23) includes a driven shaft (231) rotatably arranged on one side of the rear end of the main frame (1), a driven pulley (232) is arranged at the top end of the driven shaft (231), a driven tensioning pulley (233) is rotatably arranged on one side of the front end of the main frame (1) through a first adjusting member (234), a driven conveying belt (235) is wound between the driven tensioning pulley (233) and the driven pulley (232), a driven gear (236) is also arranged at the bottom end of the driven shaft (231), and a driving assembly (24) for driving the driven gear (236) to rotate is also arranged on the other side of the main frame (1), and the main frame (1) and the driven shaft (231) are also matched with one of the sub-frames (31) through a first fastening assembly.

3. The fish opening device with eight blades and three pieces according to claim 2, characterized in that: The driving assembly (24) includes a horizontal motor support (241) arranged on one side of the rear end of the main frame (1), a driving shaft (242) is rotatably arranged on the horizontal motor support (241), a driving pulley (243) is arranged at the top end of the driving shaft (242), a horizontal motor (244) is arranged on the horizontal motor support (241), and an output end of the horizontal motor (244) is matched with the driving shaft (242) through a commutator to drive the driving shaft (242) to rotate A driving tension pulley (245) is rotatably provided on one side of the front end of the main frame (1) through a second adjusting member (246), a driving conveyor belt (247) is wound between the driving tension pulley (245) and the driving pulley (243), a driving gear (248) meshing with the driven gear (236) is further provided at the bottom end of the driving shaft (242), and the main frame (1) and the driving shaft (242) are also matched with another sub-frame (31) through a second fastening assembly.

4. The fish opening device with eight blades and three pieces according to claim 3, characterized in that: The first fastening assembly includes a driven base (5) arranged on the main frame (1), the driven shaft (231) is rotatably arranged inside the driven base (5) through a bearing, and the outer rotating sleeve of the driven base (5) is provided with a right rotating seat (51) that matches the sub-frame (31); the second fastening assembly includes an active base (6) arranged on the main frame (1), the active shaft (242) is rotatably arranged inside the active base (6) through a bearing, and the outer rotating sleeve of the active base (6) is provided with a left rotating seat (61) that matches the sub-frame (31).

5. The fish opening device with eight blades and three pieces according to claim 3, characterized in that: A plurality of tensioning adjustment mechanisms (4) are symmetrically arranged on the top of one side of the two sub-frames (31), and the plurality of tensioning adjustment mechanisms (4) are respectively matched with the active conveyor belt (247) and the driven conveyor belt (235). The tensioning adjustment mechanism (4) includes a connecting seat (41) arranged on the top of the sub-frame (31), a connecting column (42) is rotatably arranged on the connecting seat (41), and a rotating seat (43) is arranged on the connecting column (42). A roller shaft (44) is rotatably provided at the bottom of the rotating seat (43), and a tensioning roller (45) is rotatably provided at one end of the roller shaft (44) away from the rotating seat (43). The tensioning roller (45) is tightly pressed against the inner side of the active conveyor belt (247) or the inner side of the driven conveyor belt (235). A linkage component (46) is also symmetrically provided between the two connecting columns (42), and an elastic adjustment component (47) is also symmetrically provided between the two rotating seats (43).

6. The fish opening device with eight blades and three pieces according to claim 5, characterized in that: The linkage assembly (46) includes a gear plate (461) symmetrically arranged on the two connecting columns (42), the two gear plates (461) are meshed with each other, and a sliding limiter (462) is provided between the gear plate (461) and the rotating seat (43) to limit the rotation angle of the gear plate (461).

7. The fish opening device with eight blades and three pieces according to claim 6, characterized in that: The elastic adjustment component (47) includes a first adjustment plate (471) arranged on one of the rotating seats (43), and a second adjustment plate (472) is arranged on the other rotating seat (43). The first adjustment plate (471) is threadedly connected to an adjustment bolt (473), and the threaded end of the adjustment bolt (473) is connected to an adjustment spring (474). The end of the adjustment spring (474) away from the adjustment bolt (473) is connected to an adjustment rod (475). The second adjustment plate (472) is provided with a card slot, and the adjustment rod (475) is provided with a plurality of card blocks (476) that are engaged with the card slot.

8. A method for opening fish with eight blades and three pieces, according to the device for opening fish with eight blades and three pieces according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: According to the size of the fish to be cut, the positions and angles of the eight blades (34) are adjusted to a suitable state; S2: The fish body that has been headed and gutted is then placed on the feeding rack (22) of the fixed rack (21) with its fins facing downward and its head facing the conveying direction, and the horizontal motor (244) on the horizontal motor support (241) is started. The output end of the horizontal motor (244) drives the driving shaft (242) to rotate through the commutator, and the driving shaft (242) simultaneously drives the driving pulley (243) and the driving gear (248) to rotate. The driving pulley (243) is then driven by the active tensioning pulley (245) to move the active conveyor belt (247) from the feeding rack (22) toward the discharge port (11); S3: At the same time, the driving gear (248) drives the driven gear (236) to rotate during the rotation process, and the driven gear (236) drives the driven pulley (232) on the driven shaft (231) to rotate. Under the action of the driven tensioning pulley (233), the driven pulley (232) causes the driven conveyor belt (235) to move from the feeding rack (22) to the discharge port (11), so that the driving conveyor belt (247) and the driven conveyor belt (235) simultaneously clamp the fish body placed on the feeding rack (22) to clamp and convey the fish body; S4: Then, the driving members on the eight adjustment seats (32) are started simultaneously, and the output ends of the eight driving members respectively drive the blades (34) on the knife shaft (33) to rotate. At this time, the front knife composed of blade A (341), blade B (342), blade E (345), and blade F (346) separates the fish meat and the vertebral spine on the upper and lower sides of the fish bone, and then the fish body continues to be transported backward. The rear knife composed of blade C (343), blade D (344), blade G (347), and blade H (348) sticks to the outer side of the fish bone to separate the fish meat from both sides of the bone, so that the fish body is cut into three pieces, namely, one piece of fish bone and two pieces of fish fillet; S5: At this time, the fish bones fall downward from the gap formed by the eight blades (34) to the debris discharge port (12), and the two fish fillets continue to be transported backward under the friction of the active conveyor belt (247) and the driven conveyor belt (235), and finally slide out from the discharge port (11), thereby completing the three-piece fish body cutting operation process.

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