Automatic meat taking equipment for shellfish products

The automated shellfish meat extraction equipment, with its modular design and rotary reciprocating vibration extraction mechanism, solves the problems of large equipment size and the impact of oyster activity, achieving efficient and non-destructive separation of shellfish meat and is suitable for integration into various production lines.

CN121817247AInactive Publication Date: 2026-04-10GUANGZHOU UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGZHOU UNIVERSITY
Filing Date
2026-03-06
Publication Date
2026-04-10
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing shellfish meat extraction equipment suffers from problems such as large equipment size, redundant structure, poor adaptability to individual differences in oysters, and impact on oyster activity, failing to meet the needs of small catering establishments and high-quality processing.

Method used

The automated shellfish meat extraction equipment adopts a modular design, combining a rotating mechanism and a low-frequency reciprocating vibration extraction mechanism. It uses semi-flexible blades to dynamically adapt to the curved surface of the oyster shell under rotation and vibration, and achieves non-destructive separation under normal pressure through pure mechanical cutting.

Benefits of technology

It improves the integrity and adaptability of meat extraction, reduces equipment costs, maintains the biological activity and nutritional value of oysters, and is suitable for integration into different production lines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses automatic meat taking equipment for shellfish products, the equipment comprises a rack, a turnover device and a meat taking device, the meat taking device comprises a rotating mechanism and a meat taking mechanism, the rotating mechanism is used for driving the meat taking mechanism to move along a preset arc track, and the meat taking mechanism can be better attached to the inner concave curved surface of a shell for scraping through the arc track, so that the meat taking efficiency is improved. Preferably, the meat taking mechanism is of a low-frequency reciprocating vibration type, is composed of a semi-flexible rubber knife handle and a rigid knife head, and can gradually go deep into dead corners of the shell bottom under the compound motion of vibration and rotation to completely cut off adductor muscles. The device is compact in structure, high in adaptability to individual differences of shells, capable of remarkably improving meat taking integrity and efficiency and capable of serving as an independent module to be flexibly integrated on various shellfish processing production lines.
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Description

TECHNICAL FIELD

[0001] The present application belongs to the field of mechanical equipment, more specifically, an automatic meat taking equipment for shellfish products. BACKGROUND

[0002] Oysters (oysters) as an important global bulk aquatic consumer product, its deep processing (such as frozen half-shell oysters, canned oysters, instant oyster meat) has very high requirements for shelling and meat taking efficiency. For a long time, oyster meat taking is highly dependent on manual labor, not only labor intensive, low efficiency, but also because of the sharp oyster shell, it is easy to cause workers' hands to be injured. In addition, manual meat taking is difficult to achieve industrialization standards in food hygiene control and precision of adductor muscle cutting (i.e. meat quality integrity). Therefore, the development of automatic and intelligent oyster meat taking equipment is an inevitable trend of industry development.

[0003] The current mainstream meat taking method has mechanical cutting scheme and physical field separation scheme. For example, the patent document with publication number CN103004942A discloses a rotary multi-station structure, which is actually a "under-beak meat cutting device". The scheme drives the gear rack through the cam mechanism to make the moving plate move to the clamping device, and the cutting knife is designed to have an elastic deformation amount. When the blade is inserted obliquely downward into the shell, it is deformed by the extrusion of the inner wall of the shell, so as to slide tightly along the concave arc surface of the shell. Another way is the physical field (ultra-high pressure) non-destructive separation scheme, such as the patent document with publication number CN112205455A. The scheme places oysters in a sealed container, applies an ultra-high pressure (HPP) of 100MPa-5MPa, and keeps the pressure for 1-30 minutes. The high pressure makes the adductor muscle protein denature, so that the meat and shell naturally fall off.

[0004] However, the prior art still has the following disadvantages: 1. Large equipment size and redundant structure: The existing automatic meat taking scheme adopts a multi-station rotary table structure (such as CN103004942A) or a complex hydraulic drive system. These devices are designed for large-scale industrial assembly lines, and have high system integration but large floor area and high cost, which cannot meet the needs of small-scale catering terminals or small-scale processing workshops for compactness and low cost of equipment.

[0005] 2. Poor adaptability to individual differences of oysters: The existing technology (such as patent CN103004942A) uses an elastic blade to try to fit the inner wall of the shell by material deformation, but its essence still belongs to mechanical scraping relying on static thrust. Since the depth of the concave arc of the oyster lower shell (convex shell) is not uniform and the shape is extremely irregular, this passive deformation fitting often fails to reach the root of the adductor muscle due to excessive cutting resistance or angle limitation, resulting in meat tearing and high residue.

[0006] 3. Effect on oyster activity: The prior art (such as patent CN117562106A) mostly uses high-temperature steam structure to realize the separation of oyster meat from closed muscle. The principle is to induce irreversible denaturation of closed muscle protein by heating, which can separate the shell and meat, but this process will completely destroy the biological activity of oysters, resulting in changes in meat tissue structure, and it is difficult to meet the high-quality processing needs of the market for "fresh" oyster products. SUMMARY

[0007] The purpose of the present application is to provide a compact, complete and adaptable automatic meat taking equipment for shellfish products, which can at least solve one of the problems in the prior art.

[0008] The purpose of the present application can be achieved by the following technical solutions: An automatic meat taking equipment for shellfish products, at least comprising: a rack; a turnover device installed on the rack for clamping and turning the shellfish products to be taken; a meat taking device installed on the rack and cooperating with the clamped shellfish products to be taken by the turnover device; the meat taking device at least comprising: a rotating mechanism installed on the rack; a meat taking mechanism installed on the rotating mechanism; the rotating mechanism is used to drive the meat taking mechanism to move along a predetermined circular arc trajectory, so that the meat taking mechanism scrapes the shell meat in the shellfish products to be taken clamped by the turnover device.

[0009] As a further technical solution of the present application, the meat taking mechanism is a low-frequency reciprocating vibration type meat taking mechanism, which is used to drive the meat taking knife assembly to perform low-frequency reciprocating linear vibration while moving along the circular arc trajectory, so as to gradually scrape the shell meat multiple times.

[0010] As a further technical solution of the present application, the meat taking mechanism comprises a third driving assembly and a meat taking knife assembly, and the meat taking knife assembly is installed on the third driving assembly. The third driving assembly comprises: a mounting seat installed on the rotating mechanism, a third driving member installed on the mounting seat; a driving wheel connected with the power output end of the third driving member and driven to rotate by the third driving member; a connecting rod eccentrically hinged to the driving wheel at one end; a connecting shaft hinged to the other end of the connecting rod; a pressing plate provided with a waist-shaped hole slot, and the connecting shaft is limited in position with the waist-shaped hole slot; a knife seat fixedly connected with the connecting shaft; The knife seat is capable of linear reciprocating motion under the driving of the third driving member, and the meat taking knife assembly is installed at one end of the knife seat.

[0011] As a further technical solution of the present application, the third driving assembly further comprises a sliding block and a guide rail, the guide rail is installed at the bottom of the pressing plate, and the sliding block is fixedly arranged on the top surface of the knife seat and is in sliding cooperation with the guide rail. Thus, the working principle of the meat taking mechanism is as follows: when the driving wheel rotates under the driving of the third driving member, the connecting rod is driven to move, the connecting shaft is driven to make linear reciprocating motion under the constraint of the waist-shaped hole groove through the transmission of the connecting rod, and the movement of the connecting shaft further drives the knife seat to make linear reciprocating vibration, and the guiding action of the sliding block and the guide rail limits the movement direction of the knife seat, so that the knife seat can only make accurate linear reciprocating motion along the guide rail.

[0012] As a further technical solution of the present application, the meat taking knife assembly is a semi-flexible cutter, comprising: a rigid cutter head for contacting and scraping the meat; a flexible cutter handle connecting the rigid cutter head and the knife seat and capable of bending deformation to adapt to the curved surface of the inner wall of the shellfish.

[0013] As a further technical solution of the present application, the rotating mechanism comprises: a ring gear rotatably installed on the rack, and the meat taking mechanism is fixedly connected with the ring gear; a fourth driving assembly for driving the ring gear to rotate; The fourth driving assembly comprises a fourth driving member and a synchronous wheel transmission module engaged with the ring gear, and the fourth driving member drives the ring gear to rotate through the synchronous wheel transmission module.

[0014] As a further technical solution of the present application, the turnover device comprises: a turnover mechanism installed on the rack; a clamping mechanism arranged at the movable end of the turnover mechanism for clamping the shellfish products; The turnover mechanism is used for driving the clamping mechanism to turn between the feeding station and the meat taking station.

[0015] As a further technical solution of the present application, the clamping mechanism comprises: a second mounting rack installed at the movable end of the turnover mechanism; a second driving assembly arranged in the second mounting rack and comprising a second driving member and a gear and rack transmission module; a pair of clamping blocks connected with the gear and rack transmission module respectively and moving closer to or away from each other under the driving of the second driving member to clamp or release the shellfish.

[0016] As a further technical solution of the present application, the gear and rack transmission module comprises: a first gear connected with the power output end of the second driving member; A pair of racks mesh with the first gear and are located on both sides of it, and a pair of clamping blocks are fixedly connected to the pair of racks respectively.

[0017] As a further technical solution of the present invention, the automatic meat extraction device for shellfish products also includes: The feeding device, installed on the frame, is used to transport shellfish to the gripping position of the turning device; The first storage device, in conjunction with the meat extraction station, is used to collect shellfish meat; The second storage device, which works in conjunction with the empty shell release position of the flipping device, is used to collect the empty shell.

[0018] The beneficial effects of this invention are as follows: 1. High meat integrity: The rotating mechanism drives the meat extraction mechanism to move along an arc trajectory. Combined with the low-frequency reciprocating vibration of the meat extraction mechanism, the semi-flexible blade can gradually scrape against the inner wall of the oyster shell, significantly reducing the oyster meat breakage rate and improving the integrity of the meat extraction. Compared with the traditional single straight scraping, this compound motion can more thoroughly cut the adductor muscle.

[0019] 2. Strong adaptability to curved surfaces: Under the combined motion of rotation and vibration, the semi-flexible blade can dynamically adapt to the extremely irregular curved surface changes of the oyster shell. The rigid blade head is used for scraping, and the flexible blade handle is used for bending and deformation, realizing a combination of rigidity and flexibility in scraping. It effectively handles the adhesive areas and solves the problem of traditional static blades not being able to completely peel off deep concave areas.

[0020] 3. Good modularity and versatility: The whole machine adopts a modular design. The flipping device can pick up oysters from the outside and move them to the designated work station inside. This makes the equipment not only an independent meat-picking unit, but also flexible to be integrated into different production lines. There is no need to carry out large-scale customized modification for specific production lines. It has a wide range of applications and low deployment costs.

[0021] 4. Maintaining the activity of oysters: This invention uses a purely mechanical cutting method to directly sever the adductor muscle connection point through physical means, achieving non-destructive separation under normal pressure, effectively avoiding the impact on the biological activity of oysters, and preserving the original flavor and nutritional value of oyster meat to the greatest extent. Attached Figure Description

[0022] The invention will now be further described with reference to the accompanying drawings.

[0023] Figure 1 This is a perspective view of an automatic shellfish meat extraction device according to one embodiment of the present invention.

[0024] Figure 2 yes Figure 1 One of the perspective views of the flipping device of an automatic shellfish meat extraction equipment shown; Figure 3 yesFigure 1 The second perspective view of the flipping device of the automatic shellfish meat extraction equipment shown; Figure 4 yes Figure 1 The third perspective view of the flipping device of the automatic shellfish meat extraction equipment shown; Figure 5 yes Figure 1 One of the side views of the meat-removing device in the automated shellfish meat-removing equipment shown; Figure 6 for Figure 5 A perspective view of the meat-removing mechanism of the meat-removing device shown; Figure 7 for Figure 6 One of the three-dimensional views of the meat extraction mechanism shown, with some parts of the structure omitted; Figure 8 for Figure 6 The second 3D view of the meat extraction mechanism with some parts omitted; Figure 9 for Figure 6 The third 3D view of the meat extraction mechanism with some parts omitted; Figure 10 yes Figure 1 The second side view of the meat-removing device of the automatic meat-removing equipment for shellfish products shown; Figure 11 yes Figure 1 One of the side views of the meat-removing device in the automated shellfish meat-removing equipment shown; Figure 12 This is a comparison diagram of the movement trajectory of the meat retrieval knife assembly of the present invention and the movement trajectory of a conventional meat retrieval knife; Figure 13 yes Figure 1 A three-dimensional view of the automated shellfish meat extraction equipment shown from another angle; Figure 14 This is a schematic diagram of the installation of the clamping block according to one embodiment of the present invention.

[0025] Figures 1-14 The annotations in the accompanying drawings are explained as follows: 1-Frame; 2-Feeding device; 3-Tilting device; 4-Meat-retrieving device; 5-First storage device; 6-Second storage device; 7-Limiting frame; 31-Tilting mechanism; 32-Clamping mechanism; 41-Rotating mechanism; 42-Meat-retrieving mechanism; 51-First guide; 52-First storage box; 61-Second guide; 62-Second storage box; 311-First driving component; 312-First mounting frame; 313-Tilting frame; 321-Second mounting frame; 322-Second driving assembly; 323-Clamping assembly; 411-Fourth driving assembly; 412-Internal gear ring; 421-Third driving assembly; 422-Meat-retrieving knife assembly; 3211-Guide groove; 3221-Second driving component ; 3222-Gear and rack transmission module; 3231-Clamping block; 4111-Fourth driving component; 4112-Synchronous belt; 4113-First synchronous pulley; 4114-Second synchronous pulley; 4115-Second gear; 4210-Mounting block; 4211-Mounting base; 4212-Third driving component; 4213-Drive wheel; 4214-Connecting rod; 4215-Connecting shaft; 4216-Pressure plate; 4217-Tool holder; 4218-Slider; 4219-Guide rail; 4221-Rigid tool head; 4222-Flexible tool holder; 3222a-First gear; 3222b-Rack; 3231a-Guide protrusion; 3231b-Anti-slip tooth; 4216a-Oval slot. Detailed Implementation

[0026] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0027] like Figures 1-14 As shown, it schematically illustrates an automatic shellfish meat extraction device according to an embodiment of the present invention.

[0028] like Figure 1 As shown, the overall structure of the automatic shellfish meat extraction equipment is built on a frame 1 made of materials such as aluminum profiles.

[0029] The equipment mainly includes a feeding device 2, a turning device 3, a meat taking device 4, a first collecting device 5, a second collecting device 6, and a control device (preferably a PLC, not shown in the figure).

[0030] Frame 1 serves as the mounting base for the entire equipment, providing support and positioning for all components.

[0031] As a preferred option, the feeding device 2 uses a belt conveyor to sequentially transport the shellfish products (using oysters as an example) to be picked to the preset gripping positions.

[0032] The flipping device 3 is installed on the frame 1 and located at the end of the feeding device 2. The flipping device 3 integrates flipping and clamping functions, and can clamp the oysters at the feeding device 2 and flip them to the meat extraction station.

[0033] The meat extraction device 4 includes a rotating mechanism 41 mounted on the frame 1 and a meat extraction mechanism 42 mounted on the rotating mechanism 41. The meat extraction mechanism 42 cooperates with the oysters held by the flipping device 3 and can complete the meat extraction action with low residue or even no residue under the drive of the rotating mechanism 41.

[0034] The first storage device 5 cooperates with the meat-removing mechanism 42 to collect the removed oyster meat. It includes a first guide member 51 (e.g., a guide slide plate) installed at an angle on the frame 1 and a first storage box 52 located at the end of the first guide member 51. The second storage device 6 is used to collect empty oyster shells. It includes a second guide member 61 (e.g., a guide slide plate) installed at an angle on the frame 1 and a second storage box 62 located at the end of the second guide member 61.

[0035] like Figures 2-4 As shown, the flipping device 3 is a key module for realizing automated loading and unloading of equipment. It includes a flipping mechanism 31 and a clamping mechanism 32. The flipping mechanism 31 includes a first driving member 311, a first mounting frame 312, and a flipping frame 313. The first mounting frame 312 is mounted on the frame 1. The first end of the flipping frame 313 is rotatably mounted on the first mounting frame 312 via a hinge shaft or the like. The driving end of the first driving member 311 is fixedly connected (coaxially) to the hinge shaft of the flipping frame 313. The clamping mechanism 32 is located at the second end of the flipping frame 313. The clamping mechanism 32 includes a second mounting frame 321, a second driving assembly 322, and a clamping assembly 323. The second mounting frame 321 is movably mounted on the second end of the flipping frame 313 via a hinge or the like. Both the second driving assembly 322 and the clamping assembly 323 are mounted on the second mounting frame 321, and the second driving assembly 322 is used to drive the clamping assembly 323 to achieve the clamping action. The second drive assembly 322 includes a second drive member 3221 and a gear and rack transmission module 3222. The gear and rack transmission module 3222 includes a first gear 3222a rotatably mounted on the second mounting bracket 321 and poweredly connected to the drive end of the second drive member 3221, and a pair of racks 3222b meshing with the first gear 3222a and located on both sides of the second mounting bracket. The clamping assembly 323 includes a pair of clamping blocks 3231. The pair of clamping blocks 3231 are fixedly connected to the pair of racks 3222b respectively and can move closer or further away from each other under the drive of the second drive member 3221 to achieve clamping action.

[0036] As a preferred option, such as Figure 5 and Figure 14As shown, the bottom of the second mounting bracket 321 has a guide groove 3211, and the top of the pair of clamping blocks 3231 is provided with guide protrusions 3231a that slide in cooperation with the guide groove.

[0037] Preferably, the inner sidewall of the clamping block 3231 is provided with anti-slip teeth 3231b.

[0038] Preferably, the first drive component 311 is a DC motor and the second drive component 3221 is a servo motor.

[0039] As a further preferred option, a limiting frame 7 is provided on the frame 1 at the position corresponding to the meat-removing station, which cooperates with the flipping frame 313. When the flipping frame 313 flips the oyster to this position, the limiting frame 7 limits it to ensure the accuracy of the meat-removing operation.

[0040] like Figures 5-9 As shown, the meat-retrieving mechanism 42 is a low-frequency reciprocating vibration type meat-retrieving mechanism, which includes a third drive assembly 421 and a meat-retrieving knife assembly 422. The meat-retrieving knife assembly 422 is mounted on the third drive assembly 421. The third drive assembly 421 includes a mounting base 4211, a third drive member 4212, a drive wheel 4213, a connecting rod 4214, a connecting shaft 4215, a pressure plate 4216, a knife holder 4217, a slider 4218, and a guide rail 4219. The mounting base 4211 is mounted on the rotating mechanism 41. The meat-retrieving knife assembly 422 is mounted on one end of the knife holder 4217. The third drive member 4212 is mounted on the mounting base 4211, and its output shaft is connected to the drive wheel 4213 and drives the drive wheel 4213 to rotate. The drive wheel 4213 has an eccentrically set hinge point on its disc. One end of the connecting rod 4214 is hinged to this hinge point, and the other end of the connecting rod 4214 is hinged to the connecting shaft 4215. The pressure plate 4216... 216 is installed on the mounting base 4211 and has an oblong groove 4216a. The connecting shaft 4215 is inserted into the oblong groove 4216a and its end is fixedly connected to the knife holder 4217 (fixedly fitted on the end of the knife holder 4217 away from the end where the meat cleaver assembly 422 is installed). The guide rail 4219 is installed on the bottom of the pressure plate 4216. The slider 4218 is fixedly set on the top surface of the knife holder 4217 and slides with the guide rail 4219. Therefore, the working principle of the meat-removing mechanism 42 is as follows: when the drive wheel 4213 rotates under the drive of the third drive member 4212, it drives the connecting rod 4214 to move. Through the transmission of the connecting rod 4214, the connecting shaft 4215 makes linear reciprocating motion under the constraint of the waist-shaped slot 4216a. The movement of the connecting shaft 4215 further drives the knife holder 4217 to make linear reciprocating vibration. The guiding effect of the slider 4218 and the guide rail 4219 restricts the movement direction of the knife holder 4217, so that it can only make precise linear reciprocating motion along the guide rail 4219.

[0041] Preferably, the third drive unit 4212 is a DC motor.

[0042] like Figure 6 As shown, the meat-removing knife assembly 422 is a semi-flexible knife, which is composed of a flexible handle 4222 (such as a rubber handle) installed on the knife holder 4217 and a rigid blade 4221 installed at the end of the flexible handle 4222. The rigid blade 4221 is used to contact and scrape the oyster meat, while the flexible handle 4222 has good elasticity and can bend and deform when the rigid blade 4221 encounters the irregular curved surface of the inner wall of the oyster shell, so that the rigid blade 4221 can penetrate into the dead corner of the bottom of the shell.

[0043] like Figure 5 as well as Figures 10-13 As shown, the rotating mechanism 41 is used to drive the entire meat-removing mechanism 42 to move along an arc trajectory. It includes a fourth driving component 411 and an internal gear ring 412. The internal gear ring 412 is rotatably mounted on the frame 1 by means of hinges or the like. The entire meat-removing mechanism 42 is fixedly mounted on the internal gear ring 412 by a mounting block 4210 extending from the mounting base 4211, so as to realize the rigid connection between the meat-removing mechanism 42 and the internal gear ring 412. The fourth driving component 411 is used to drive the internal gear ring 412 to rotate. Specifically, the fourth drive assembly 411 includes a fourth drive member 4111 and a synchronous pulley transmission module. The synchronous pulley transmission module includes a synchronous belt 4112, a first synchronous pulley 4113, and a second synchronous pulley 4114. The fourth drive member 4111 is mounted on the frame 1, and its output shaft is connected to a first synchronous pulley 4113. The second synchronous pulley 4114 is rotatably mounted on the frame and meshes with an internal gear ring 412 via a coaxial spur gear. The synchronous belt 4112 is respectively fitted onto the first synchronous pulley 4113 and the second synchronous pulley 4114. Therefore, when the fourth drive member 4111 drives the second synchronous pulley 4114 to rotate, it will drive the internal gear ring 412 to rotate, thereby driving the entire meat-retrieving mechanism 42 mounted on the internal gear ring 412 to perform circular motion.

[0044] Preferably, the fourth drive component 4111 is a DC motor.

[0045] The typical automated operation process of this invention is as follows: S1. Feeding and Picking: Oysters are transported to a predetermined position X via the feeding device 2 (e.g., ...). Figure 2 As shown), the feeding device 2 stops, the first driving member 311 drives the flipping frame 313 to flip to one side of the feeding device 2, and then the second driving member 3221 drives the clamping block 3231 to clamp the oysters.

[0046] S2, Flip to the meat extraction station: The first drive unit 311 is activated again, driving the flipping frame 313 to flip the oyster into the device until the flipping frame 313 is limited by the limiting frame 7. At this time, the oyster is in the meat extraction station, and its adductor muscle is facing the meat extraction mechanism 42.

[0047] S3. Meat Removal Operation: The control device starts the meat removal device 4. On one hand, the third drive member 4212 in the meat removal mechanism 42 starts working, driving the meat removal blade assembly 422 to perform low-frequency reciprocating linear vibration. On the other hand, the fourth drive member 4111 in the rotating mechanism 41 starts working, driving the entire meat removal mechanism 42 to move along a preset arc trajectory (e.g., through the synchronous belt 4112, the second synchronous pulley 4114, and the internal gear ring 412). Figure 12 As shown), under the combined motion of rotation and vibration, the vibrating meat-removing knife assembly 422 gradually scrapes along the curved surface of the inner wall of the oyster shell multiple times, eventually completely cutting off the adductor muscle and separating the oyster meat from the oyster shell.

[0048] S4. Oyster meat collection: The separated oyster meat slides into the first storage box 52 through the first guide 51 under the force of gravity and the push of the mechanism.

[0049] S5. Empty shell reset and collection: After the meat extraction is completed, the flipping device 3 operates again, the flipping frame 313 holding the empty oyster shell flips and sends it back to the original predetermined position X on the feeding device 2. Then, the clamping block 3231 releases the oyster shell, the feeding device 2 restarts, and sends the next oyster to be processed into the predetermined position X. At the same time, the empty oyster shell is conveyed forward. The empty oyster shell falls into the second storage box 62 along the end of the feeding device 2 via the second guide 61, completing one meat extraction cycle.

[0050] In summary, the main advantages of the automatic shellfish meat extraction device provided by this invention compared to existing technologies are as follows: 1. Fully automated: Through specific mechanical structures and circuit control, a complete automated process from feeding, meat picking to unloading is realized, overcoming the shortcomings of low efficiency and high hygiene risks of manual meat picking, as well as the reliance of semi-automatic equipment on manual feeding and unloading.

[0051] 2. High-quality meat extraction: The innovative combination of the circular motion trajectory of the rotating mechanism and the low-frequency reciprocating vibration of the meat extraction mechanism allows the semi-flexible blade to scrape the oyster meat multiple times in a gradual manner within an equal stroke, perfectly adapting to the extremely irregular curved surface features inside the oyster shell. This fundamentally solves the technical pain point that traditional rigid peeling structures are prone to tearing, breaking, or leaving residues of oyster meat, significantly improving the integrity and quality of the extracted meat.

[0052] 3. High modularity and versatility: This equipment uses an independent flipping device to achieve internal and external material transfer, making the entire meat extraction unit a standard module. Regardless of the type of screening and cleaning equipment at the front end of the production line or the type of packaging line at the back end, this mechanism can be flexibly integrated without the need for customized modifications for different production lines. This greatly improves the applicability and scalability of the equipment and reduces the deployment costs for users.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An automatic meat extraction device for shellfish products, characterized in that, At least including: Rack (1); A flipping device (3) is installed on the frame (1) for clamping and flipping shellfish products to be extracted; Meat extraction device (4) is installed on the frame (1) and cooperates with the shellfish product to be extracted held by the flipping device (3); The meat extraction device (4) includes at least: Rotation mechanism (41) is mounted on the frame (1); The meat-retrieving mechanism (42) is mounted on the rotating mechanism (41); The rotating mechanism (41) is used to drive the meat extraction mechanism (42) to move along a preset arc trajectory so that the meat extraction mechanism (42) scrapes the shellfish meat in the shellfish product to be extracted held by the flipping device (3).

2. The automatic shellfish meat extraction device according to claim 1, characterized in that, The meat extraction mechanism (42) is a low-frequency reciprocating vibration type meat extraction mechanism, which is used to drive its meat extraction blade assembly (422) to perform low-frequency reciprocating linear vibration while moving along the arc trajectory, so as to progressively scrape the shellfish meat multiple times.

3. The automatic shellfish meat extraction device according to claim 2, characterized in that, The meat-removing mechanism (42) includes a third drive assembly 421 and a meat-removing knife assembly 422, wherein the meat-removing knife assembly 422 is mounted on the third drive assembly (421). The third drive component (421) includes: Mounting base 4211 is mounted on the rotating mechanism 41. The third drive unit (4212) is mounted on the mounting base 4211; The drive wheel (4213) is connected to the power output end of the third drive member (4212) and is driven to rotate by the third drive member (4212); Link (4214), one end of which is eccentrically hinged to the drive wheel (4213). The connecting shaft (4215) is hinged to the other end of the connecting rod (4214); The pressure plate (4216) has an oblong groove (4216a), and the connecting shaft (4215) is in a limiting fit with the oblong groove (4216a); The tool holder (4217) is fixedly connected to the connecting shaft (4215); The knife holder (4217) can perform linear reciprocating motion under the drive of the third driving member (4212), and the meat slicing knife assembly (422) is installed at one end of the knife holder (4217).

4. The automatic shellfish meat extraction device according to claim 3, characterized in that, The third drive assembly (421) further includes a slider 4218 and a guide rail 4219. The guide rail 4219 is installed on the bottom of the pressure plate 4216, and the slider 4218 is fixedly disposed on the top surface of the tool holder 4217. The slider 4218 and the guide rail 4219 are in sliding cooperation.

5. The automatic shellfish meat extraction device according to claim 3, characterized in that, The meat slicing knife assembly (422) is a semi-flexible knife, comprising: Rigid blade (4221) is used to contact and scrape the clam meat; The flexible handle (4222) connects the rigid blade (4221) and the blade holder (4217) and can bend to adapt to the curved surface of the inner wall of the shellfish.

6. The automatic shellfish meat extraction device according to any one of claims 1-5, characterized in that, The rotating mechanism (41) includes: An internal gear ring (412) is rotatably mounted on the frame (1), and the meat taking mechanism (42) is fixedly connected to the internal gear ring (412); The fourth drive assembly (411) is used to drive the internal gear ring (412) to rotate; The fourth drive assembly (411) includes a fourth drive member (4111) and a synchronous gear transmission module that meshes with the internal gear ring (412). The fourth drive member (4111) drives the internal gear ring (412) to rotate through the synchronous gear transmission module.

7. The automatic shellfish meat extraction device according to any one of claims 1-5, characterized in that, The flipping device (3) includes: A flipping mechanism (31) is mounted on the frame (1). A clamping mechanism (32) is disposed at the movable end of the flipping mechanism (31) and is used to clamp shellfish products; The flipping mechanism (31) is used to drive the clamping mechanism (32) to flip between the feeding station and the meat taking station.

8. The automatic shellfish meat extraction device according to claim 7, characterized in that, The clamping mechanism (32) includes: The second mounting bracket (321) is mounted on the movable end of the flipping mechanism (31); The second drive assembly (322) is disposed on the second mounting bracket (321) and includes a second drive member (3221) and a gear and rack transmission module (3222). A pair of clamping blocks (3231) are respectively connected to the gear and rack transmission module (3222) and move closer or further apart under the drive of the second driving member (3221) to clamp or release the shellfish.

9. The automatic shellfish meat extraction device according to claim 8, characterized in that, The gear and rack transmission module (3222) includes: The first gear (3222a) is connected to the power output end of the second drive member (3221); A pair of racks (3222b) mesh with the first gear (3222a) and are located on both sides thereon, and a pair of clamping blocks (3231) are fixedly connected to the pair of racks (3222b).

10. The automatic shellfish meat extraction device according to any one of claims 1-5, characterized in that, Also includes: Feeding device (2), installed on the frame (1), is used to transport shellfish to the gripping position of the flipping device (3); The first storage device (5) is used in conjunction with the meat extraction station to collect shellfish meat; The second storage device (6) cooperates with the empty shell release position of the flipping device (3) to collect the empty shell.

Citation Information

Patent Citations

  • Shell and meat separation method for shellfish product

    CN103004942A

  • Nondestructive oyster separation device and process

    CN112205455A