A device for opening and taking out meat of patinopecten yessoensis

Abstract

The application discloses a kind of patinopecten yessoensis shell opening and meat taking device, including support, erecting on the conveying mechanism of support, four-jaw type centering self-adaptive clamping mechanism for clamping patinopecten yessoensis on conveying mechanism, steam injection module for stimulating patinopecten yessoensis shell opening above conveying mechanism, photoelectric sensor for measuring scallop shielding time is set on support, fastening baffle for stirring four-jaw type centering self-adaptive clamping mechanism clamping scallop is located on support, fixed shell opening module for opening scallop and fixing the position of shell column, cutting module for cutting shell column, disengagement baffle for stirring four-jaw type centering self-adaptive clamping mechanism loosening scallop is located on support, receiving basket for receiving scallop meat, receiving box for receiving scallop shell and controller.The application can guarantee the integrity, cleanliness and nutrition of meat.

Description

Technical Field

[0001] This invention relates to the technical field of processing scallops, and more particularly to a device for opening and extracting meat from scallops. Background Technology

[0002] With the development of the nutritional and economic value of scallops, the processing scale of scallops has gradually increased. Opening scallop shells is a major challenge in processing them. Traditional manual shell-opening methods in my country are inefficient and costly, and easily damage the outer shell, causing shell fragments to mix into the scallop meat, affecting its edibility and subsequent processing. Furthermore, during the process of opening scallop shells and extracting meat, manual handling requires sufficient experience and caution to ensure the integrity of the scallop meat, significantly increasing labor costs. Existing mechanical structures for processing scallops often use fixed-width conveyor tracks without adaptive adjustment, which easily leads to smaller scallops slipping and larger scallops getting stuck in the track gaps, causing equipment downtime. Additionally, because the scallop meat is tightly attached to the shell, and each scallop has a unique curvature and shape, existing mechanical structures struggle to align the meat effectively, failing to separate the shell from the meat after opening, or resulting in incomplete cutting of the meat, causing shell fragments to mix in, increasing subsequent manual sorting costs. Another method involves steaming or boiling scallops to open their shells, followed by mechanical impact or vibration to remove them. This prematurely cooks the adductor muscle, causing it to lose nutrients and affecting its preservation and edibility.

[0003] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0004] Purpose of the invention: The purpose of this invention is to provide a device for opening and extracting meat from scallops that can ensure the integrity, cleanliness, and nutritional value of the scallop meat.

[0005] Technical Solution: To achieve the above objectives, this invention discloses a scallop opening and meat extraction device, comprising a support, a conveying mechanism mounted on the support, a four-claw centering adaptive clamping mechanism located on the conveying mechanism for clamping the scallop, a steam jet module located above the conveying mechanism for stimulating the scallop to open its shell, a photoelectric sensor mounted on the support for measuring the scallop's blocking time, a fastening baffle located on the support for actuating the four-claw centering adaptive clamping mechanism to clamp the scallop, a fixed opening module for opening the scallop and fixing the adductor muscle position, a cutting module for cutting the adductor muscle, a release baffle located on the support for actuating the four-claw centering adaptive clamping mechanism to release the scallop, a storage basket for storing scallop meat, a storage box for storing scallop shells, and a controller.

[0006] Optionally, the four-claw centering adaptive clamping mechanism includes a scallop base whose upper surface is adapted to the shape of the scallop, a lower scallop shell connected to the scallop base, a central shaft located at the center of the lower scallop shell, a turntable located inside the lower scallop shell and rotatable around the central shaft, an arc-shaped groove symmetrically opened on the turntable, a gripper push rod that can slide along the arc-shaped groove, side rods located on the left and right sides of the turntable and extending out of the lower scallop shell to drive the turntable to rotate, an elastic lever connected to the side rod, a clamping straight groove opened on the scallop base, and a gripper located at the upper end of the gripper push rod and movable back and forth along the clamping straight groove. The gripper push rod includes an upper vertical rod, a middle horizontal rod, and a lower vertical rod, wherein the lower end of the lower vertical rod passes through the arc-shaped groove and slides along the arc-shaped groove, and the upper end of the upper vertical rod passes through the clamping straight groove and moves back and forth along the clamping straight groove.

[0007] Optionally, the fixed shell module includes a drive motor mounted on a bracket, an arc-shaped rod with one end connected to the output shaft of the drive motor, a straight rod with one end connected to the other end of the arc-shaped rod, a first rack fixed on the straight rod, a first gear mounted on the bracket and meshing with the first rack, a second gear mounted on the bracket and meshing with the first gear, a second rack meshing with the second gear, a meat baffle located on the second rack, a needle located on the second rack, a connecting rod with one end connected to the middle of the arc-shaped rod, and a support rod with one end connected to the other end of the connecting rod, wherein the other end of the straight rod is connected to the middle of the support rod, and the other end of the support rod has a pointed head.

[0008] Optionally, the first gear is mounted on the bracket via a first support shaft, and the second gear is mounted on the bracket via a second support shaft.

[0009] Optionally, a first connecting plate for fixing the end of the first rack is also provided on the first support shaft.

[0010] Optionally, a second connecting plate for fixing the second rack is also provided on the second support shaft.

[0011] Optionally, the cutting module includes a vertical lifting slide fixed on a bracket, a lifting motor for driving the vertical lifting slide to move up and down, a slide connecting plate connected to the slide, a cutting motor located on the slide connecting plate, three equally spaced cutting gears mounted on the slide connecting plate and connected to the output shaft of the cutting motor, a cutting rack meshing with each cutting gear, and a cutting tool connected to the cutting rack.

[0012] Optionally, the cutting module includes the cutting tool comprising an upper tool holder connected to the cutting racks on the left and right sides, a tool holder rod hinged to the middle cutting rack, a tool holder with its rear end hinged to the tool holder rod and its front end hinged to the upper tool holder, and a blade located on the tool holder.

[0013] Optionally, the conveying mechanism includes a double-chain conveyor belt and a chain motor for driving the double-chain conveyor belt.

[0014] Optionally, the controller calculates the scallop length L based on the time t during which the laser is blocked by the scallop collected by the photoelectric sensor using the correction formula L=v×t+h, where h is a correction constant. Then, it calculates the scallop thickness H based on the scallop allometric growth formula L=a×Hb, where b is the scallop allometric growth index and a is a proportionality constant. The controller then controls the cutting module to position itself at the height of the scallop meat and cuts the meat based on the thickness of the scallop.

[0015] Beneficial Effects: Compared with existing technologies, this invention has the following significant advantages: Unlike existing steaming methods, this invention does not pre-cook the scallops before opening them for meat extraction, ensuring the integrity and cleanliness of the scallop meat. It also achieves centralized collection, eliminating excessive labor costs and improving scallop meat harvesting efficiency. This invention employs a four-claw centering adaptive clamping mechanism and a cutting module based on photoelectric sensors. First, the four-claw centering adaptive clamping device is fixed to a double-chain conveyor belt. When the scallop is pre-opened by high-temperature steam, the four-claw clamping mechanism is triggered, fixing the four corners of the scallop and firmly securing its center. This centering function effectively prevents the size of the scallop from affecting the mechanism's fixation. When the scallop meat separates from the shell, the four-claw clamping mechanism is triggered to release, detaching the clamps from the scallop for quick shell removal. Quick storage; the fixed shell-opening module of this invention uses a crank-rocker structure to drive a support rod to open the scallop. A gear and rack structure drives a needle to pierce the scallop meat after the shell is opened and fix it, preventing the scallop meat from shifting significantly during the cutting process and causing incomplete cutting. In this invention, a photoelectric sensor can measure the length of the scallop during its movement. Since the shape of the Yesso scallop is basically circular, its thickness can be calculated using relevant formulas. Based on the calculated thickness data, the lifting slide controls the up and down height of the cutter, preventing misalignment with the scallop meat. The scallop meat moves only slightly under the fixation of the needle, making it easy for the cutter to cut along the curvature of the shell. The cut scallop meat falls into the storage basket below under the action of the meat baffle, facilitating subsequent cleaning and packaging, reducing labor costs, and improving the integrity of the obtained scallop meat. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the conveying mechanism in this invention;

[0018] Figure 3 This is a schematic diagram of the steam injection module in this invention;

[0019] Figure 4This is a schematic diagram of the structure of the fixed shell module in this invention;

[0020] Figure 5 This is a schematic diagram of the shell-opening state of the fixed shell-opening module in this invention;

[0021] Figure 6 This is a schematic diagram of the cutting module in this invention;

[0022] Figure 7 This is a schematic diagram of the cutting state of the cutting module in this invention. Figure 1 ;

[0023] Figure 8 This is a schematic diagram of the cutting state of the cutting module in this invention. Figure 2 ;

[0024] Figure 9 This is a partial schematic diagram of the four-jaw centering adaptive clamping mechanism in this invention;

[0025] Figure 10 This is a schematic diagram of the four-jaw centering adaptive clamping mechanism in this invention;

[0026] Figure 11 This is a schematic diagram showing the positions of the fastening baffle and the detachment baffle in this invention. Detailed Implementation

[0027] The technical solution of the present invention will be further described below with reference to the accompanying drawings.

[0028] like Figure 1 As shown, this invention discloses a device for opening and extracting meat from scallops, including a support 11, a conveying mechanism 1, a steam injection module 2, a fixed opening module 3, a cutting module 4, a four-claw centering adaptive clamping mechanism 5, a photoelectric sensor 6, a fastening baffle 7, a release baffle 8, a storage basket 9, a storage box 10, and a controller. The conveying mechanism 1 is mounted on the support 11. Figure 2 As shown, the conveying mechanism 1 includes a double-chain conveyor belt 101 and a chain motor 102, which drives the double-chain conveyor belt 101. Under the action of the chain motor 102, the double-chain conveyor belt 101 moves the four-jaw centering adaptive clamping mechanism 5 to the desired position.

[0029] The four-claw centering adaptive clamping mechanism 5 is fixed to the double-chain conveyor belt 101 of the conveying mechanism 1 and moves together with the double-chain conveyor belt 101. The four-claw centering adaptive clamping mechanism 5 is used to clamp the scallop. The four-claw centering adaptive clamping mechanism 5 uses four movable claws to fix the scallop from the four corners, preventing the scallop from falling off during the shell-opening process. It works in conjunction with the double-chain conveyor belt to adaptively clamp and release at designated positions. Figure 11As shown, the fastening baffle 7 is located on the bracket 11, and the fastening baffle 7 is used to actuate the four-jaw centering adaptive clamping mechanism to clamp the scallop. The disengagement baffle 8 is located on the bracket 11, and the disengagement baffle 8 is used to actuate the four-jaw centering adaptive clamping mechanism to release the scallop.

[0030] like Figure 9 and Figure 10 As shown, the four-jaw centering adaptive clamping mechanism 5 includes a scallop base 501, a lower scallop shell 502, a central shaft 503, a turntable 504, an arc-shaped groove 505, a gripper push rod 506, a side rod 507, an elastic lever 508, a clamping straight groove 509, and grippers 510. The upper surface of the scallop base 501 is adapted to the shape of the scallop. The lower scallop shell 502 is connected to the scallop base 501 by bolts. A central shaft 503 is provided at the center of the lower scallop shell 502. The turntable 504 is located inside the lower scallop shell 502 and is mounted on the central shaft 503 through bearings. The turntable 504 can rotate around the central shaft. The turntable 504 has a four-blade fan-shaped structure, with symmetrically arranged arc-shaped grooves 505 on each blade. The gripper push rod 506 can slide along the arc-shaped grooves 505. Two side rods 507 are located on the left and right sides of the turntable, respectively, and extend from the lower shell 502 of the scallop shell. The lower shell 502 of the scallop shell has slots 514 for the side rods 507 to move along, and the side rods 507 move along the slots 514 to drive the turntable 504 to rotate. Each side rod 507 is connected to a flexible paddle 508. The scallop base 501 has clamping grooves 509 at its four corners. The gripper push rod 506 includes an upper vertical rod 511, a middle horizontal rod 512, and a lower vertical rod 513. The lower end of the lower vertical rod 513 passes through the arc-shaped groove 505 and slides along the arc-shaped groove. The upper end of the upper vertical rod 511 passes through the clamping groove 509 and moves back and forth along the clamping groove. A gripper 510 is connected to the upper end of the upper vertical rod 511 and can move back and forth along the clamping groove 509. When the elastic lever 508 contacts the fastening baffle 7, the fastening baffle 7 moves the elastic lever 508, which drives the turntable 504 to rotate. The lower vertical rod 513 of the gripper push rod 506 moves along the arc-shaped groove 505, while the upper vertical rod 511 of the gripper push rod 506 drives the gripper 510 to move forward along the clamping groove 509, clamping the scallop. When the elastic lever 508 comes into contact with the release baffle 8, the release baffle 8 moves the elastic lever 508, which drives the turntable 504 to rotate. The lower vertical rod 513 of the gripper push rod 506 moves along the arc groove 505, while the upper vertical rod 511 of the gripper push rod 506 drives the gripper 510 to move backward along the clamping straight groove 509, thus releasing the scallop.

[0031] like Figure 3As shown, the steam injection module 2 is located above the conveyor mechanism 1 and is fixed to the bracket 11. The steam injection module 2 is used to stimulate the scallops to open their shells. The steam injection module 2 includes a steam generator 201 and a steam pipe 202. The steam generator 201 generates steam, which is injected onto the scallops through the steam pipe 202, causing the scallops to open slightly under the action of the steam. When the double-chain conveyor belt moves the four-claw centering adaptive clamping mechanism directly below the steam injection module 2, high-temperature steam can be ejected to stimulate the scallops to open their shells slightly. Since the steam is ejected only briefly, it can prevent the scallops from cooking at high temperatures, only serving a stimulating effect.

[0032] A photoelectric sensor 6 is mounted on the bracket 11 and is used to measure the time the scallop blocks the laser beam. The controller calculates the scallop length L based on the time t the laser beam blocks the scallop, as collected by the photoelectric sensor 6, using the correction formula L=v×t+h, where h is a correction constant. Then, the controller calculates the scallop thickness H using the scallop allometric growth formula L=a×Hb, where b is the allometric growth index of the scallop and a is a proportionality constant. Based on the scallop thickness, the controller controls the cutting module 4 to position itself at the height of the scallop meat and cuts the meat.

[0033] like Figure 4 and Figure 5 As shown, the fixed shell-opening module 3 is used to open the scallop and fix the position of the adductor muscle. The fixed shell-opening module 3 includes a drive motor 301, an arc-shaped rod 302, a straight rod 303, a first rack 304, a first gear 305, a second gear 306, a second rack 307, a meat baffle 308, a needle 309, a connecting rod 310, a support rod 311, a pointed head 312, a first support shaft 313, a second support shaft 314, a first connecting plate 315, and a second connecting plate 316. The fixed shell-opening module 3 is a rack and pinion composite transmission mechanism based on a crank-rocker. During the process of the double-chain conveyor belt moving the four-jaw centering adaptive clamping mechanism to the shell-opening position, the four-jaw centering adaptive clamping mechanism automatically clamps itself under the action of the left fastening baffle 7, firmly fixing the pre-opened scallop. When it moves to the shell-opening position, the drive motor drives the crank-rocker structure, which drives the support rod to extend into the pre-opened scallop and push it upward to open the scallop. At the same time, the connected needle can pierce and fix the position of the adductor column. After the shell is opened, the support rod can be folded backward under the drive of the gear and rack mechanism to facilitate the passage of the four-jaw centering adaptive clamping mechanism.

[0034] The drive motor 301 is mounted on the bracket 11. One end of the arc-shaped rod 302 is connected to the output shaft of the drive motor, and the other end of the arc-shaped rod 302 is connected to one end of the straight rod 303. The middle part of the arc-shaped rod 302 is connected to one end of the connecting rod 310. One end of the straight rod 303 is connected to the other end of the arc-shaped rod 302, and the other end of the straight rod 303 is connected to the middle part of the support rod 311. One end of the connecting rod 310 is connected to the middle part of the arc-shaped rod 302, and the other end of the connecting rod 310 is connected to one end of the support rod 311. The other end of the support rod 311 is suspended and has a pointed head 312. The first rack 304 is fixed to the straight rod 302. The first gear 305 is mounted on the bracket 11 via the first support shaft 313. A first connecting plate 315, which is L-shaped, is also provided on the first support shaft 313 for fixing the end of the first rack 305. The first gear 305 meshes with the first rack 304. The second gear 306 is mounted on the bracket 11 via the second support shaft 314. The second gear 306 meshes externally with the first gear 305. The second rack 307 meshes with the second gear 306. A second connecting plate 316, which is L-shaped, is also provided on the second support shaft 314 for fixing the second rack 307. A meat baffle 308 is located on the second rack 307, and a needle 309 is located on the second rack. The needle 309 is used to fix the position of the adductor muscle. The drive motor 301, through the arc rod 302, straight rod 303, connecting rod 310 and support rod 311, drives the support rod 311 to extend into the scallop and open it diagonally upwards, thus opening the scallop. Driven by the straight rod 303, the first gear 304 moves linearly, and through the first gear 305 and the second gear 306, drives the second rack 307 to move linearly, causing the needle 309 to pierce into the meat of the opened scallop. The needle 309 is responsible for fixing the meat to prevent it from shifting significantly during the cutting process, which would result in incomplete cutting. After fixing the meat, the cutting module 4 on the left side starts to operate, cutting the connection between the adductor and the shell. After the cutting module cuts the adductor, the needle 309 uses friction to carry the meat away from the shell. The meat baffle 308 is used to remove the meat from the needle, and then the meat falls into the storage basket.

[0035] like Figure 6 , Figure 7 and Figure 8As shown, the cutting module 4 is used to cut the clam column. The cutting module 4 includes a vertical lifting slide 401, a lifting motor 402, a slide connecting plate 403, a cutting motor 404, a cutting gear 405, a cutting rack 406, and a cutting tool 407. The vertical lifting slide 401 is fixed on the bracket 11. The lifting motor 402 is used to drive the vertical lifting slide 401 to move up and down. The slide connecting plate 403 is connected to the slide. The cutting motor 404 is located on the slide connecting plate 403. The cutting gear 405 is mounted on the slide connecting plate 403 and is connected to the output shaft of the cutting motor. The three cutting gears... The wheels 405 are evenly spaced, the cutting rack 406 meshes with each cutting gear 405, the cutting tool 407 is connected to the cutting rack, and the cutting tool 407 includes an upper tool holder 408, a tool holder rod 409, a tool holder 410 and a blade 411. The upper tool holder 408 is connected to the cutting racks on the left and right sides and has an n-shaped structure. The tool holder rod 409 is hinged to the middle cutting rack. The rear end of the tool holder 410 is hinged to the tool holder rod 409. The front end of the tool holder 410 is connected to the middle part of the upper tool holder 408 by a hinge. The blade 411 is located on the tool holder 410 and the cutting edge of the blade 411 is set obliquely. The controller calculates the scallop length L based on the time t during which the laser is blocked by the scallop collected by the photoelectric sensor 6, using the correction formula L=v×t+h, where h is a correction constant and is set to 0.35. Then, it calculates the scallop thickness H based on the scallop allometric growth formula L=a×Hb, where b is the allometric growth index of the scallop and a is a proportionality constant. Based on the scallop thickness, the controller controls the lifting motor 402 of the cutting module 4 to start, which drives the vertical lifting slide 401 to move. The blade 411 of the cutting tool 407 is positioned at the height of the scallop meat and cuts the meat. The photoelectric sensor can measure the length of the scallop during its movement. Since the Yesso scallop is basically circular, its thickness can be calculated using relevant formulas. After the scallop opens, a lifting motor on one side can drive a vertical lifting slide to control the height of the cutting blade based on the calculated data. The adductor muscle moves only slightly under the fixation of the needle, making it easy for the blade to cut along the curvature of the shell. After the adductor muscle is cut off, the drive motor drives the crank rocker structure, and the needle pulls the scallop meat away from the shell. A meat baffle on one side allows the scallop meat to slide into the storage basket below.

[0036] As the machine is activated, the conveyor mechanism 1 begins operation, placing the scallops on the four-claw centering adaptive clamping mechanism 5. The chain motor 102 provides kinetic energy to the double-chain conveyor belt 101, driving the four-claw centering adaptive clamping mechanism 5 forward step by step. Upon reaching the steam injection module 2, the steam injection module 2 sprays high-temperature steam, stimulating the scallops to slightly open their shells. Subsequently, the double-chain conveyor belt 101 moves the four-claw centering adaptive clamping mechanism 5 forward. The elastic lever 508 of the four-claw centering adaptive clamping mechanism 5 is actuated by the fastening baffle 7, causing the turntable 504 to rotate counterclockwise by a certain angle. The arc groove on the turntable 5074 causes the gripper push rod 506 to tighten towards the center. The grippers 510 on the gripper push rod 506 clamp the four corners of the scallop, thus fixing the scallop shell after steam injection.

[0037] The foldable support rod 311 is primarily responsible for fully opening the pre-opened scallop, facilitating the cutting of the scallop meat. After the four-claw centering adaptive clamping mechanism 5 reaches the fixed opening module 3, the drive motor 301 provides power to the crank-rocker mechanism, causing the foldable support rod 311 to extend into the scallop and open diagonally upwards. The needle 309 above the support rod 311 is connected to the support rod 311 via a gear and rack mechanism, causing the needle 309 to pierce into the meat of the opened scallop. At this time, the needle 309 is responsible for fixing the meat, preventing it from shifting significantly during the cutting process and causing incomplete cutting. After fixing the meat, the cutting module 4 on the left side begins to operate, cutting off the connection between the adductor muscle and the shell.

[0038] A photoelectric sensor 6 emits a laser beam to indirectly measure the thickness of the scallop, located behind the steam generator 201. When the double-chain conveyor belt 101 carrying the four-jaw centering adaptive clamping mechanism 5 passes the photoelectric sensor 6, the laser emitted by the photoelectric sensor 6 is blocked by the passing scallop. The blocking time is recorded, and the length of the scallop can be calculated. Since the shape of the Yesso scallop is basically circular, the thickness of the scallop can be calculated using the scallop allometric growth formula L=a×Hb, where L is the length of the scallop, H is the thickness of the scallop, b is the allometric growth index (b=0.967), and a is a proportionality constant (a=1.682). The lifting motor 402 moves the vertical lifting slide 401 up and down based on the thickness data calculated by the photoelectric sensor, positioning the cutting blade 407 at the height of the scallop meat before cutting the meat, preventing misalignment. After cutting, the drive motor 301 in the fixed shell-opening module 3 drives the support rod 311 and needle 309 to move back. The needle 309 uses the friction with the scallop meat to pull the meat away from the shell, and it falls into the storage basket 9 below under the action of the meat baffle 308. At this time, the chain motor 102 starts to operate, and the double-chain conveyor belt 101 continues to move with the four-claw centering adaptive clamping mechanism 5. When it passes the disengagement baffle 8 under the chain, the disengagement baffle 8 is deflected, and the turntable 504 rotates clockwise by a certain angle. The arc groove on the turntable 504 drives the gripper push rod 506 to open outward. The gripper 510 on the gripper push rod 506 releases the scallop, and the scallop shell after the meat is removed is separated from the four-claw centering adaptive clamping mechanism. When it rotates to the area below the double-chain conveyor belt 101, it falls into the storage box 10 below, realizing the separation and collection of shell and meat. The four-claw centering adaptive clamping mechanism 5 continues to move back to the initial position to process the next scallop.

Claims

1. A device for opening and extracting meat from Ezo scallops, characterized in that, Includes a support frame (11), a conveying mechanism (1) mounted on the support frame, a four-claw centering adaptive clamping mechanism (5) located on the conveying mechanism for clamping the scallop, a steam jet module (2) located above the conveying mechanism for stimulating the scallop to open its shell, a photoelectric sensor (6) mounted on the support frame for measuring the scallop's blocking time, a fastening baffle (7) located on the support frame for actuating the four-claw centering adaptive clamping mechanism to clamp the scallop, and a shell-opening module (3) for opening the scallop and fixing the position of the adductor muscle. The scallop cutting module (4) for cutting the adductor muscle, the release baffle (8) located on the support and used to release the scallop by actuating the four-claw centering adaptive clamping mechanism, the storage basket (9) for storing the scallop meat, the storage box (10) for storing the scallop shells, and the controller; the fixed shell opening module (3) includes a drive motor (301) mounted on the support, an arc-shaped rod (302) with one end connected to the output shaft of the drive motor, a straight rod (303) with one end connected to the other end of the arc-shaped rod, and a first rack fixed on the straight rod. (304) A first gear mounted on the support and meshing with the first rack (305), a second gear mounted on the support and meshing with the first gear (306), a second rack meshing with the second gear (307), a meat baffle on the second rack (308), a needle on the second rack (309), a connecting rod (310) whose end is connected to the middle of the arc-shaped rod, and a support rod (311) whose end is connected to the other end of the connecting rod, wherein the other end of the straight rod (303) is connected to the support rod (311). The first gear (305) is mounted on the bracket (11) via the first support shaft (313), and the second gear (306) is mounted on the bracket (11) via the second support shaft (314). A first connecting plate (315) for fixing the end of the first rack is also provided on the first support shaft (313). A second connecting plate (316) for fixing the second rack is also provided on the second support shaft (314).

2. The scallop shell-opening and meat-extracting device according to claim 1, characterized in that, The four-jaw centering adaptive clamping mechanism (5) includes a scallop base (501) whose upper surface is adapted to the shape of the scallop, a lower scallop shell (502) connected to the scallop base, a central shaft (503) located at the center of the lower scallop shell, a turntable (504) located inside the lower scallop shell and rotatable around the central shaft, symmetrical arc grooves (505) opened on the turntable, a jaw push rod (506) that can slide along the arc groove, and side rods (507) located on the left and right sides of the turntable, extending out of the lower scallop shell and used to drive the turntable to rotate. The elastic lever (508) connected to the side rod, the clamping groove (509) opened on the scallop base, and the gripper (510) located at the upper end of the gripper push rod and movable back and forth along the clamping groove. The gripper push rod (506) includes an upper vertical rod (511), a middle horizontal rod (512), and a lower vertical rod (513). The lower end of the lower vertical rod (513) passes through the arc groove (505) and slides along the arc groove. The upper end of the upper vertical rod (511) passes through the clamping groove (509) and moves back and forth along the clamping groove.

3. The scallop shell-opening and meat-extracting device according to claim 1, characterized in that, The cutting module (4) includes a vertical lifting slide (401) fixed on the bracket (11), a lifting motor (402) for driving the vertical lifting slide to move up and down, a slide connecting plate (403) connected to the slide, a cutting motor (404) located on the slide connecting plate, three equally spaced cutting gears (405) mounted on the slide connecting plate and connected to the output shaft of the cutting motor, a cutting rack (406) meshing with each cutting gear, and a cutting tool (407) connected to the cutting rack.

4. The scallop shell-opening and meat-extracting device according to claim 3, characterized in that, The cutting tool (407) includes an upper tool holder (408) connected to the cutting racks on the left and right sides, a tool holder rod (409) hinged to the middle cutting rack, a tool holder (410) with its rear end hinged to the tool holder rod and its front end hinged to the upper tool holder, and a blade (411) located on the tool holder.

5. The scallop shell-opening and meat-extracting device according to claim 1, characterized in that, The conveying mechanism (1) includes a double-chain conveyor belt (101) and a chain motor (102) for driving the double-chain conveyor belt.

6. The scallop shell-opening and meat-extracting device according to claim 1, characterized in that, The controller calculates the scallop length L by means of the correction formula L=v×t+h based on the time t when the laser is blocked by the scallop collected by the photoelectric sensor (6), where h is the correction constant. Then, it calculates the scallop thickness H by means of the scallop allometric growth formula L=a×Hb, where b is the allometric growth index of the scallop and a is the proportional constant. The controller controls the cutting module (4) to locate the height of the scallop meat and cut the meat according to the thickness of the scallop.

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