Sea cucumber quality inspection detection device

Abstract

The invention relates to the technical field of aquatic product quality detection, and provides a sea cucumber quality detection device which comprises a circular detection platform, a plurality of conveying mechanisms communicated with the detection platform, appearance detection mechanisms arranged on the conveying mechanisms, and a weighing mechanism, an elastic detection mechanism and an appearance detection unit which are sequentially arranged on the detection platform. The detection platform comprises a base, a first driving part and a turntable. A circulation channel is formed in the turntable, and the first driving part drives the detection platform to intermittently rotate, so that the to-be-detected object entering the circulation channel sequentially passes through the weighing mechanism, the elastic detection mechanism and the appearance detection unit. The base is further provided with a material receiving unit located in the next procedure of the appearance detection unit, and the grabbing disc is provided with a communicating channel communicating with the circulating channel and the material receiving unit. The unqualified raw materials of the sea cucumbers in the early stage of production are screened, so that cost waste caused by the fact that the unqualified sea cucumbers enter subsequent production procedures is effectively avoided, and the subsequent sea cucumber product quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of aquatic product quality testing technology, and in particular to a sea cucumber quality testing device. Background Technology

[0002] As a high-value aquatic product, the core quality evaluation indicators for sea cucumbers include water content, size, weight, and appearance integrity. These indicators directly determine their market price and food safety. Currently, the sea cucumber quality inspection process involves multiple stages of manual operation or single-function equipment for water content testing, size measurement, weighing, and sorting. This requires separate sorting and processing, which not only increases the time and manpower costs during operation but also makes the sea cucumber skin more susceptible to damage during handling, affecting the product's value.

[0003] In current technologies, sea cucumber quality inspection mainly focuses on finished product testing, with a lack of specialized testing equipment for raw materials before production. Most companies need to perform preliminary cleaning and sorting of sea cucumber raw materials before transporting them to the testing area to complete various indicator tests. This separation between pretreatment and testing processes increases the risk of secondary contamination and time loss during raw material transportation.

[0004] Furthermore, the size measurement of sea cucumbers mostly relies on manual measurement using calipers or steel rulers, and the elasticity measurement is also judged by feel. Therefore, the degree of human involvement is high, the detection efficiency is low, and it cannot meet the continuous operation requirements of large-scale production lines. Moreover, when measuring the size manually, the elasticity of the sea cucumber's shape increases the difficulty and time of measurement, and there are also large measurement errors, resulting in different product standards and classifications.

[0005] In addition, existing sea cucumber testing equipment is mostly laid out linearly by connecting to the production line, which requires a long production workshop space and adds more conveyor lines and buffer zones to adapt to the production line cycle time. The equipment structure is complex and the maintenance cost is high. Summary of the Invention

[0006] In view of this, the present invention aims to propose a sea cucumber quality inspection and testing device, which is an integrated testing device that can automatically and continuously complete the automated testing and grading of sea cucumbers in the early stage of production, thereby improving quality inspection efficiency and reducing processing losses.

[0007] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0008] A sea cucumber quality inspection and testing device includes a circular testing platform, multiple conveying mechanisms connected to the testing platform, an appearance inspection mechanism disposed on the conveying mechanism, and a weighing mechanism, an elasticity inspection mechanism, and an appearance inspection unit sequentially disposed on the testing platform.

[0009] The detection platform includes a base, a first drive unit disposed on the base, and a turntable connected to the power output end of the first drive unit;

[0010] The turntable has a flow channel formed inside. The first driving unit drives the detection platform to rotate intermittently so that the test object entering the flow channel passes through the weighing mechanism, the elasticity detection mechanism, and the appearance detection unit in sequence.

[0011] The base is also provided with a receiving unit located in the next process after the appearance inspection unit, and the gripper is provided with a connecting channel connecting the flow channel and the receiving unit.

[0012] Furthermore, the conveying mechanism includes a belt conveyor and a guide assembly disposed on the belt conveyor; the guide assembly includes a first guide portion arranged in a figure-eight shape at the inlet and a second guide portion disposed at the outlet end of the first guide portion;

[0013] The belt conveyor is provided with an extension rod arranged along its width direction above it. The second guide part is provided with two positioning wheel sets that can be slidably connected to the extension rod. The positioning wheel set includes a positioning rod and a positioning wheel pivotally connected to the positioning rod.

[0014] The two positioning wheel sets form a positioning space. The object to be tested moves to the positioning space along the guidance of the first guide and passes through the positioning space in an extending direction.

[0015] Furthermore, the first guide portion includes a figure-eight frame located on the upper part of the belt conveyor, and a plurality of guide wheels pivotally connected to the figure-eight frame, the plurality of guide wheels being arranged at intervals along the extension direction of the figure-eight frame.

[0016] Furthermore, the shape detection mechanism includes a laser displacement scanner mounted on the extension rod, the laser displacement scanner being used to measure the length and width of the object to be measured;

[0017] The extension rod is also provided with an auxiliary rod extending in the transmission direction. The two sets of auxiliary rods are respectively arranged on both sides of the two positioning wheel sets. Several sets of photoelectric sensors are provided on the auxiliary rods along their extension direction.

[0018] Furthermore, the elastic detection mechanism includes a support frame connected to the base, a second drive unit disposed on the support frame, a pressure rod connected to the power output end of the second drive unit, and a pressure head slidably connected inside the pressure rod;

[0019] The upper end of the pressure head is provided with a positioning block, and the support frame is also provided with a positioning plate. The positioning block is provided with a locking block arranged radially thereon, and the positioning plate is provided with a receiving hole. The pressure rod passes through the positioning plate through the receiving hole.

[0020] The locking block is used to restrict the position of the positioning block, and a first elastic element is provided between the positioning block and the pressure head.

[0021] Furthermore, the pressure rod is formed with an elongated hole arranged along its axial direction, the locking block is elastically connected to the positioning block, a conical groove is formed in the receiving hole, a cavity is formed in the pressure rod, and a protruding convex plate is provided in the cavity;

[0022] When the pressure rod is driven to move downward, the locking block passes through the elongated hole and engages in the conical groove;

[0023] When the pressure bar is driven to move upward, the convex plate abuts against the lower part of the positioning block, and the first elastic element is elastically stretched, causing the pressure head to rise accordingly.

[0024] Furthermore, the receiving unit includes a connecting plate connected to one side of the connecting channel, and a driving assembly disposed above the connecting plate;

[0025] Transition plates are provided on both sides of the connecting plate, and the two transition plates are respectively connected to the waste collection box and the finished product collection box.

[0026] The drive assembly includes a fixed box with an upper opening, a module located within the fixed box along its length, and a lever connected to the movable end of the module. The lever is used to move the object to be tested into the waste collection box or the finished product collection box.

[0027] Furthermore, the turntable is also provided with a third driving unit, and the power output end of the third driving unit is connected to a push plate. The push plate is correspondingly disposed at the end of the flow channel and faces the direction of the connecting channel. When the turntable rotates to the receiving unit, the third driving unit drives the push plate to extend in the direction of the connecting channel.

[0028] Furthermore, it also includes a control system, which includes a central processing unit, and a data acquisition module, a classification decision module, and a data storage module electrically connected thereto.

[0029] The data acquisition module includes an image processing unit, a size calculation unit, and a signal conditioning unit;

[0030] The image processing unit is used to process the images acquired by the appearance detection unit to identify surface defects or abnormal shapes of the object under test.

[0031] The size calculation unit is used to calculate the length, width, and projected area of ​​the object to be measured;

[0032] The signal conditioning unit is used to receive and process the analog signals from the sensors used to measure weight in the weighing mechanism and the elasticity detection mechanism, and convert them into digital data.

[0033] The classification decision module performs fusion analysis on the output data of the size calculation unit, the signal conditioning unit, and the image processing unit based on preset rules or models. When the weight of the object to be tested is lower than the threshold, the elastic recovery rate is lower than the threshold, or the image shows serious defects, it is judged as a defective product. Otherwise, the finished product is classified according to the comprehensive score of size, weight, and elasticity, and a corresponding classification instruction is generated and sent to the classification execution module.

[0034] The data storage module is used to store the original detection data, processing results, classification records, and system operation logs for each test object.

[0035] Compared with the prior art, the present invention has the following advantages:

[0036] The sea cucumber quality inspection and testing device of the present invention, by sequentially setting a weighing mechanism, an elasticity testing mechanism, and an appearance inspection unit on the testing platform, and cooperating with the appearance inspection mechanism on the conveying mechanism, performs multiple quality inspections on sea cucumbers in the early stage of production, including initial appearance inspection, weight inspection, elasticity property inspection, appearance detail inspection, and precise size measurement. It screens out unqualified raw materials before processing, effectively avoids the cost waste caused by unqualified sea cucumbers entering subsequent production processes, and ensures the quality of subsequent sea cucumber products.

[0037] Meanwhile, by using an intermittent rotary conveyor system, the flow channel inside the turntable is connected to the conveying mechanism and the subsequent receiving unit, allowing the sea cucumbers to be tested to pass through each testing station in sequence as the turntable rotates intermittently. This eliminates the need for frequent manual transfer and positioning, enabling integrated setup of multiple testing items and reducing equipment costs.

[0038] In addition, the receiving unit on the base is located in the next process after the appearance inspection unit. The flow channel and the receiving unit are precisely connected through the connecting channel on the turntable, so that the sea cucumbers that have completed the full-dimensional inspection in the early stage of production can directly enter the receiving unit through the connecting channel, realizing the seamless connection between the early inspection and the receiving of qualified raw materials and the sorting of unqualified raw materials. Attached Figure Description

[0039] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0040] Figure 1This is a front view schematic diagram of the sea cucumber quality inspection and testing device according to an embodiment of the present invention;

[0041] Figure 2 This is a top view schematic diagram of the sea cucumber quality inspection and testing device according to an embodiment of the present invention;

[0042] Figure 3 This is a top view schematic diagram of the conveying mechanism described in an embodiment of the present invention;

[0043] Figure 4 This is a cross-sectional schematic diagram of the elasticity detection device according to an embodiment of the present invention;

[0044] Figure 5 This is a top view of the receiving unit according to an embodiment of the present invention.

[0045] Explanation of reference numerals in the attached figures:

[0046] 1. Detection platform; 2. Conveying mechanism; 3. Appearance inspection mechanism; 4. Weighing mechanism; 5. Elasticity detection mechanism; 6. Appearance inspection unit; 7. Illumination lamp; 8. Material receiving unit; 9. Object to be tested; 10. Third drive unit; 11. Push plate; 12. Camera;

[0047] 101. Base; 102. First drive unit; 103. Turntable;

[0048] 031. Distribution channel; 032. Connecting channel;

[0049] 01. Belt conveyor; 202. First guide section; 03. Second guide section; 04. Extension rod; 05. Positioning wheel assembly; 206. Positioning space;

[0050] 501. Support frame; 502. Second drive unit; 503. Pressure rod; 504. Pressure head; 505. Positioning block; 506. Locking block; 507. Positioning plate; 508. First elastic element;

[0051] 301. Laser displacement scanner; 02. Auxiliary rod; 03. Through-beam photoelectric sensor;

[0052] 801. Connecting plate; 802. Module; 803. Fixing box; 804. Lever; 805. Transition plate; 806. Waste collection box; 807. Finished product collection box;

[0053] 2021, Figure-eight frame; 2022, Guide wheel;

[0054] 5031, elongated hole; 5032, cavity; 5033, convex plate;

[0055] 071. Conical groove. Detailed Implementation

[0056] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0057] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," and "back," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0058] Furthermore, in the description of this invention, unless otherwise explicitly defined, the terms "installation," "connection," "linking," and "connector" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention in light of the specific circumstances.

[0059] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0060] This embodiment relates to a sea cucumber quality inspection and testing device. Overall, as follows... Figures 1 to 2 As shown, the testing device includes a circular testing platform 1, multiple conveying mechanisms 2 connected to the testing platform 1, an appearance testing mechanism 3 mounted on the conveying mechanism 2, and a weighing mechanism 4, an elasticity testing mechanism 5, and an appearance testing unit 6 sequentially mounted on the testing platform 1. The testing platform 1 includes a base 101, a first drive unit 102 mounted on the base 101, and a turntable 103 connected to the power output end of the first drive unit 102. A flow channel 1031 is formed within the turntable 103. The first drive unit 102 drives the testing platform 1 to rotate intermittently, so that the object to be tested 9 entering the flow channel 1031 sequentially passes through the weighing mechanism 4, the elasticity testing mechanism 5, and the appearance testing unit 6. A receiving unit 8 located in the next process after the appearance testing unit 6 is also provided on the base 101, and a connecting channel 1032 connecting the flow channel 1031 and the receiving unit 8 is provided on the gripper.

[0061] Based on the above design concept, the sea cucumber quality inspection and testing device in this embodiment, by sequentially setting a weighing mechanism 4, an elasticity testing mechanism 5, and an appearance testing unit 6 on the testing platform 1, and cooperating with the shape testing mechanism 3 on the conveying mechanism 2, performs multiple quality inspections on sea cucumbers in the early stage of production, including initial appearance inspection, weight testing, elasticity property testing, appearance detail testing, and precise size measurement. This effectively screens out unqualified raw materials before processing, preventing unqualified sea cucumbers from entering subsequent production processes and avoiding cost waste, thus ensuring the quality of subsequent sea cucumber products.

[0062] Meanwhile, by using an intermittent rotary conveying system, the flow channel 1031 within the turntable 103 is connected to the conveying mechanism 2 and the subsequent receiving unit 8, allowing the sea cucumbers to be tested to pass through each testing station sequentially as the turntable 103 rotates intermittently. This eliminates the need for frequent manual transfer and positioning, enabling integrated setup of multiple testing items and reducing equipment costs.

[0063] In addition, the receiving unit 8 on the base 101 is located in the next process after the appearance inspection unit 6. The flow channel 1031 and the receiving unit 8 are precisely connected through the connecting channel 1032 on the turntable 103, so that the sea cucumbers that have completed the full-dimensional inspection in the early stage of production can directly enter the receiving unit 8 through the connecting channel 1032, realizing the seamless connection between the early inspection and the receiving of qualified raw materials and the sorting of unqualified raw materials.

[0064] like Figures 1 to 2 As shown, in one specific implementation, this embodiment sets two sets of conveying mechanisms 2 as feeding mechanisms on the testing platform 1, and correspondingly sets two sets of weighing mechanisms 4, elastic testing mechanisms 5, appearance testing units 6 and receiving units 8, so as to improve the utilization rate of the testing platform 1. In conjunction with the intermittent rotation of the turntable 103, the positions of the above mechanisms on the testing platform 1 can be adjusted according to the cycle requirements.

[0065] As a preferred embodiment, such as Figures 1 to 3 As shown, the conveying mechanism 2 includes a belt conveyor 201 and a guide assembly mounted on the belt conveyor 201. The guide assembly includes a first guide section 202 arranged in a V-shape at the inlet and a second guide section 203 located at the outlet of the first guide section 202. An extension rod 204 is provided above the belt conveyor along its width direction. The second guide section 203 has two positioning wheel sets 205 slidably connected to the extension rod 204. Each positioning wheel set 205 includes a positioning rod and a positioning wheel pivotally connected to the positioning rod. The two positioning wheel sets 205 form a positioning space 206. The object to be measured 9 moves along the guide of the first guide section 202 to the positioning space 206 and passes through the positioning space 206 in the extending direction.

[0066] Furthermore, such as Figure 3As shown, the first guide section 202 includes a figure-eight frame 2021 located on the upper part of the belt conveyor 201, and a plurality of guide wheels 2022 pivotally connected to the figure-eight frame 2021. The plurality of guide wheels 2022 are arranged at intervals along the extension direction of the figure-eight frame 2021.

[0067] like Figure 3 As shown, the first guide section 202 is arranged in a figure-eight shape at the inlet of the belt conveyor 201. The figure-eight flared structure can form a decentralized guide for the batch of sea cucumber raw materials. And through the guidance of multiple guide wheels 2022, the deviation and tumbling of the sea cucumber during the transmission process are restricted, ensuring that it passes stably through the positioning space 206, so that the length direction of the sea cucumber is consistent with the transmission direction, which is convenient for size and shape detection.

[0068] In this embodiment, the distance between the two positioning wheel sets 205 can be adjusted according to the width of the larger sea cucumber. When the sea cucumber passes through the first guide part 202 arranged in a figure-eight shape, it is in the same direction as the guide frame. When it passes through the positioning space 206, the sea cucumber at the front end gradually moves approximately along a straight line because the distance between the two positioning wheel sets 205 becomes smaller.

[0069] Preferably, such as Figure 1 and Figure 3 As shown, the shape detection mechanism 3 includes a laser displacement scanner 301 mounted on the extension rod 204. The laser displacement scanner 301 is used to measure the length and width of the object 9 to be measured. The extension rod 204 is also provided with auxiliary rods 302 extending in the transmission direction. The two sets of auxiliary rods 302 are respectively mounted on both sides of the two positioning wheel sets 205. Several sets of photoelectric sensors 303 are provided on the auxiliary rods 302 along their extension direction.

[0070] As the sea cucumber passes through the approximately straight positioning space 206 formed by the figure-eight guide and the adjustable-pitch positioning wheel set 205, its movement posture is standardized. The laser displacement scanner 301 records the time difference between the sea cucumber's front end triggering the first set of sensors and its rear end leaving the last set of sensors. Combined with the known constant conveying speed, the projected length of the sea cucumber in the conveying direction can be accurately calculated. The laser displacement scanner 301 performs a high-speed lateral scan of the sea cucumber's outline as it passes through the measurement area, acquiring a series of cross-sectional data. The data processing unit analyzes this data to obtain the maximum lateral span of the sea cucumber's outline. Several sets of through-beam photoelectric sensors 303 calculate the projected size of the sea cucumber in the conveying direction to verify its conveying posture after guidance. This allows for timely manual adjustment or sorting and detection, effectively preventing abnormally shaped sea cucumbers from entering subsequent production.

[0071] like Figures 1 to 2As shown, a precision weighing platform, controlled by a linear drive unit, is installed above the turntable 103 corresponding to the weighing station. A vacuum suction cup is installed below the weighing platform. When the flow channel 1031 carrying sea cucumbers rotates to the weighing station and stops, the weighing platform descends to smoothly adsorb the sea cucumbers, and then rises again to place them in a stable suspended state. At this time, the high-precision weight sensor built into the weighing platform performs static weighing. After weighing, the weighing platform descends, and the sea cucumbers fall back into the flow channel 1031. This method effectively isolates the influence of the turntable 103's movement on the sea cucumber weighing, ensuring the accuracy of the weighing data.

[0072] As a preferred embodiment, such as Figures 1 to 4 As shown, the elastic detection mechanism 5 includes a support frame 501 connected to the base 101, a second drive unit 502 disposed on the support frame 501, a pressure rod 503 connected to the power output end of the second drive unit 502, and a pressure head 504 slidably connected within the pressure rod 503. A positioning block 505 is provided at the upper end of the pressure head 504, and a positioning plate 507 is also provided on the support frame 501. A locking block 506 is provided on the positioning block 505 and arranged radially thereon. A receiving hole is provided on the positioning plate 507, through which the pressure rod 503 passes. The locking block 506 is used to limit the position of the positioning block 505, and a first elastic element 508 is provided between the positioning block 505 and the pressure head 504.

[0073] In this embodiment, the second drive unit 502 is a telescopic electric cylinder, and the first elastic element 508 is a telescopic spring. The pressure rod 503 drives the pressure head 504 to press down as a whole. After the pressure head 504 contacts the sea cucumber, a sliding connection is used to form a buffer with the first elastic element 508, preventing damage to the sea cucumber's surface from rigid impact when pressing it. Simultaneously, the deformation of the first elastic element 508 indirectly reflects the magnitude of the force, serving as a mechanical overload protection to prevent excessive pressure due to abnormal control, effectively protecting high-value sea cucumber samples from damage during testing.

[0074] Furthermore, such as Figure 4 As shown, the pressure rod 503 has an elongated hole 5031 formed along its axial direction. The locking block 506 is elastically connected to the positioning block 505. A tapered groove 5071 is formed in the receiving hole, and a cavity 5032 is formed inside the pressure rod 503. A protruding convex plate 5033 is provided in the cavity 5032. When the pressure rod 503 is driven to move downward, the locking block 506 passes through the elongated hole 5031 and engages in the tapered groove 5071. When the pressure rod 503 is driven to move upward, the convex plate 5033 abuts against the lower part of the positioning block 505, causing the first elastic element 508 to stretch elastically, and the pressure head 504 rises accordingly.

[0075] The second drive unit 502 drives the pressure rod 503 to move downwards as a whole. At this time, the locking block 506, which is elastically connected to the positioning block 505, slides along the elongated hole 5031 of the pressure rod 503. When the locking block 506 moves to align with the receiving hole of the positioning plate 507 of the support frame 501, it pops outwards under its own elasticity and locks into the conical groove 5071 on the inner wall of the receiving hole. This arrangement locks the positioning block 505 relative to the positioning plate 507 above. Since the pressure head 504 is connected to the positioning block 505 through the first elastic element 508 and is not subjected to external force in the initial state, the pressure head 504 descends rapidly and synchronously with the pressure rod 503 until its bottom end contacts the surface of the sea cucumber.

[0076] When the pressure head 504 contacts the sea cucumber, the second drive unit 502 continues to drive the pressure rod 503 downwards. Since the positioning block 505 is locked to the positioning plate 507 by the locking block 506, it cannot move further downwards, while the pressure rod 503 continues to move downwards. The protruding convex plate 5033 in the cavity 5032 of the pressure rod 503 begins to press against the structure below the positioning block 505, forcing the first elastic element 508 connecting the positioning block 505 and the pressure head 504 to be compressed. At this time, the pressure received by the pressure head 504 comes entirely from the reaction force generated by the compression of the first elastic element 508. This pressure is transmitted through the pressure head 504 and evenly applied to the sea cucumber body. Simultaneously, the sensor integrated on the pressure head 504 begins to record force and displacement data. This process simulates a gentle, controllable press until the preset downward stroke or pressure threshold is reached.

[0077] After the measurement is completed, the second drive unit 502 drives the pressure rod 503 to rise. In the initial stage of rising, the protruding plate 5033 inside the pressure rod 503 immediately lifts and abuts against the lower surface of the positioning block 505, causing the positioning block 505 and the pressure head 504 connected to it via the first elastic element 508 to rise together, disengaging the pressure head 504 from the sea cucumber. As the pressure rod 503 continues to move upward, the locking block 506 disengages from the inclined surface of the conical groove 5071 and retracts under elastic action, disengaging from the locking with the positioning plate 507. The pressure rod 503 then drives the positioning block 505, the first elastic element 508, and the pressure head 504 back to their initial positions, preparing for the next test. The elastic detection mechanism 5 of this embodiment achieves flexible and linear application of pressure during the measurement stage, protecting the sea cucumber from damage while obtaining accurate force and displacement data curves, thus improving detection accuracy.

[0078] The elasticity detection mechanism 5 in this embodiment includes a force sensor installed on the pressure head 504 for real-time measurement of the pressure applied to the sea cucumber, and a displacement sensor installed on the second drive unit 502 for detecting the displacement of the pressure head 504.

[0079] In practice, the elasticity detection is performed using a sampling method, following this procedure: The control system drives the pressure head 504 downwards at a first constant speed. After contacting the sea cucumber, it continues to press down until a preset compression displacement or a preset pressure threshold is reached, maintaining this state for a short period. Then, it is raised at a second speed until it is completely detached from the sea cucumber. During this process, the signal conditioning unit simultaneously collects and records data from the force sensor and displacement sensor, forming a force-displacement curve.

[0080] The calculation method for the elastic recovery rate is as follows: The system first obtains the initial height H1 of the sea cucumber before it is compressed from the displacement data, which is the zero point of displacement when the pressure head 504 just contacts the sea cucumber, and the recovery height H2 of the sea cucumber when the force value returns to zero after the pressure head 504 is lifted.

[0081] Elastic recovery rate (Er) is calculated using the following formula:

[0082] Er = (H2 / H1) × 100%, which directly reflects the elasticity and deformation recovery ability of sea cucumber.

[0083] Preferably, such as Figure 5 As shown, the receiving unit 8 includes a connecting plate 801 connected to one side of the connecting channel 1032, and a driving assembly disposed above the connecting plate 801. Transition plates 805 are respectively provided on both sides of the connecting plate 801, and the two transition plates 805 are respectively connected to the waste collection box 806 and the finished product collection box 807. The driving assembly includes a fixed box 803 with an upper opening, a module 802 disposed within the fixed box 803 along its length, and a lever 804 connected to the movable end of the module 802. The lever 804 is used to move the object to be tested 9 into the waste collection box 806 or the finished product collection box 807.

[0084] like Figure 2 As shown, the appearance inspection unit 6 in this embodiment is located at the junction of the flow channel 1031 and the connecting channel 1032. It includes a lighting lamp 7, a camera 12 for image acquisition, and an image processor to perform appearance inspection on sea cucumbers. Sea cucumbers that do not meet the inspection standards are classified and stored for the next process.

[0085] Preferably, such as Figure 2 As shown, the turntable 103 is also equipped with a third drive unit 10. The power output end of the third drive unit 10 is connected to a push plate 11. The push plate 11 is correspondingly located at the end of the flow channel 1031 and faces the connecting channel 1032. When the turntable 103 rotates to the receiving unit 8, the third drive unit 10 drives the push plate 11 to extend towards the connecting channel 1032. The third drive unit 10 adopts a telescopic electric cylinder. The third drive unit 10 drives the push plate 11 to move, so as to send the sea cucumber into the connecting channel 1032 for easy classification and storage.

[0086] In addition, the detection device also includes a control system, which comprises a central processing unit and a data acquisition module, a classification decision module, and a data storage module electrically connected thereto. The data acquisition module includes an image processing unit, a size calculation unit, and a signal conditioning unit. The image processing unit processes the images acquired by the appearance inspection unit 6 to identify surface defects or morphological abnormalities of the object under test 9. The size calculation unit calculates the length, width, and projected area of ​​the object under test 9.

[0087] Simultaneously, the signal conditioning unit receives and processes the analog signals from the sensors used to measure weight in the weighing mechanism 4 and the elasticity detection mechanism 5, converting them into digital data. The classification decision module, based on preset rules or models, performs fusion analysis on the output data from the size calculation unit, signal conditioning unit, and image processing unit. If the weight of the test object 9 is below a threshold, the elasticity recovery rate is below a threshold, or a serious defect is detected in the image, it is judged as a defective product. Otherwise, the finished product grade is determined based on a comprehensive score of size, weight, and elasticity, and a corresponding classification instruction is generated and sent to the classification execution module. The data storage module stores the original detection data, processing results, classification records, and system operation logs for each test object 9.

[0088] In specific implementation, such as Figure 2 As shown, in this embodiment, the flow channels 1031 on the turntable 103 are multiple in a circular array. Each flow channel 1031 serves as both a discharge channel and a feed channel. In this embodiment, a unique logical station number is assigned to each flow channel 1031. The central processing unit maintains a circular data buffer that corresponds sequentially to these station numbers. When a sea cucumber is placed into a flow channel 1031 at the feeding station, the system initializes an empty data object at the logical station corresponding to that channel. As the turntable 103 rotates one station and stops, the circular data buffer also synchronously scrolls forward one position.

[0089] The detection logic of the detection device is as follows: After the first drive unit 102 completes one indexing rotation and accurately stops at the preset station, it sends a station positioning completion signal to the central processing unit. Upon receiving this signal, the central processing unit immediately triggers the execution units and sensors of all detection mechanisms at that station in parallel, according to the current station index. The raw data acquired by each detection mechanism is processed by the data acquisition module and automatically stored in the sea cucumber data object corresponding to the current station index in the circular buffer.

[0090] Furthermore, when processing the acquired sea cucumber appearance images, the image processing unit prioritizes traditional machine vision algorithms based on threshold segmentation and contour analysis to identify defects such as surface damage, severe skin deterioration, and attached foreign objects. As an implementable criterion, when the percentage of the total area of ​​the identified defective region to the projected area of ​​the sea cucumber body exceeds a preset threshold, or when there are specific morphological defects such as through cracks, it is judged as a serious defect and an alarm is triggered.

[0091] The comprehensive scoring model and level classification strategy in this embodiment:

[0092] The classification decision module employs a comprehensive scoring model based on configurable rules and weights. In a preferred embodiment, the system sets scoring ranges and weight coefficients for the three core indicators: size, weight, and elastic recovery rate. Size weight α = 0.4, weight weight β = 0.3, and elasticity weight γ = 0.3. First, the measured values ​​of each indicator are normalized to a standard score of 0-100 points. Then, the scores are combined according to the following formula:

[0093] S = α × Size score + β × Weight score + γ × Elasticity score

[0094] Finally, based on the comprehensive score S, if S≥90, it is a top-grade product; if 80≤S<90, it is a first-grade product; and if 60≤S<80, it is a second-grade product. The final grade determination instruction is generated by taking into account whether there are serious defects.

[0095] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sea cucumber quality inspection detection device, characterized in that: it comprises a circular detection platform (1), a plurality of conveying mechanisms (2) communicated with the detection platform (1), an external shape detection mechanism (3) arranged on the conveying mechanism (2), and a weighing mechanism (4), an elasticity detection mechanism (5) and an appearance detection unit (6) arranged on the detection platform (1) in sequence; the detection platform (1) comprises a base (101), a first driving part (102) arranged on the base (101), and a rotating disc (103) connected to the power output end of the first driving part (102); the rotating disc (103) is internally formed with a flow-through channel (1031), and the first driving part (102) drives the detection platform (1) to rotate intermittently, so that the to-be-measured object (9) entering the flow-through channel (1031) sequentially passes through the weighing mechanism (4), the elasticity detection mechanism (5) and the appearance detection unit (6); the base (101) is further provided with a material receiving unit (8) located at the next process of the appearance detection unit (6), and the rotating disc is provided with a communication channel (1032) communicating the flow-through channel (1031) and the material receiving unit (8).

2. The sea cucumber quality inspection detection device according to claim 1, characterized in that: the conveying mechanism (2) comprises a belt conveyor (201) and a guide assembly arranged on the belt conveyor (201); the guide assembly comprises a first guide part (202) arranged in a spreader shape at the inlet, and a second guide part (203) arranged at the outlet end of the first guide part (202); an extension rod (204) is arranged above the belt conveyor in the width direction of the belt conveyor, the second guide part (203) is provided with two positioning wheel sets (205) slidably connected to the extension rod (204), and each positioning wheel set (205) comprises a positioning rod and a positioning wheel pivotally connected to the positioning rod; a positioning space (206) is formed between the two positioning wheel sets (205), the to-be-measured object (9) moves along the first guide part (202) to the positioning space (206) and passes through the positioning space (206) in the extension direction.

3. The sea cucumber quality inspection detection device according to claim 2, characterized in that: the first guide part (202) comprises a spreader frame (2021) located at the upper part of the belt conveyor (201), and a plurality of guide wheels (2022) pivotally connected to the spreader frame (2021), and the plurality of guide wheels (2022) are arranged in the extension direction of the spreader frame (2021) at intervals.

4. The sea cucumber quality inspection detection device according to claim 3, characterized in that: the external shape detection mechanism (3) comprises a laser displacement scanner (301) arranged on the extension rod (204), and the laser displacement scanner (301) is used for measuring the length and width of the to-be-measured object (9). ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ The extension rod (204) is further provided with auxiliary rods (302) extending in the conveying direction, two groups of the auxiliary rods (302) are respectively arranged on the two sides of the two positioning wheel groups (205), and a plurality of groups of photoelectric sensors (303) are arranged on the auxiliary rods (302) along the extension direction of the auxiliary rods (302).

5. The sea cucumber quality inspection detection device according to claim 4, wherein: The elastic detection mechanism (5) comprises a support frame (501) connected to the base (101), a second driving part (502) arranged on the support frame (501), a pressing rod (503) connected to the power output end of the second driving part (502), and a pressing head (504) slidingly connected in the pressing rod (503); The upper end of the pressing head (504) is provided with a positioning block (505), the support frame (501) is further provided with a positioning plate (507), the positioning block (505) is provided with a clamping block (506) arranged in the radial direction thereof, and the positioning plate (507) is provided with an accommodating hole, and the pressing rod (503) penetrates through the positioning plate (507) from the accommodating hole; The clamping block (506) is used for limiting the position of the positioning block (505), and a first elastic member (508) is arranged between the positioning block (505) and the pressing head (504).

6. The sea cucumber quality inspection detection device according to claim 5, wherein: The pressing rod (503) is formed with a long hole (5031) arranged in the axial direction thereof, the clamping block (506) is elastically connected to the positioning block (505), the accommodating hole is formed with a tapered groove (5071), the pressing rod (503) is formed with a cavity (5032), and the cavity (5032) is provided with a protruding lug plate (5033); When the pressing rod (503) is driven to move downward, the clamping block (506) penetrates through the long hole (5031) and is clamped into the tapered groove (5071); When the pressing rod (503) is driven to move upward, the lug plate (5033) abuts below the positioning block (505), and the first elastic member (508) is elastically stretched, and the pressing head (504) is lifted.

7. The sea cucumber quality inspection detection device according to claim 1, wherein: The material receiving unit (8) comprises a communication plate (801) connected to one side of the communication channel (1032), and a driving assembly arranged above the communication plate (801); The two sides of the communication plate (801) are respectively provided with transition plates (805), and the two transition plates (805) are respectively communicated to a waste product collecting box (806) and a finished product collecting box (807); The driving assembly comprises a fixed box (803) with an upper opening, a module (802) arranged in the seat of the fixed box (803) along the length direction, and a push rod (804) connected to the movable end of the module (802), and the push rod (804) is used for pushing the to-be-tested object (9) into the waste product collecting box (806) or the finished product collecting box (807).

8. The sea cucumber quality detection device according to claim 7, characterized in that: The rotating disc (103) is further provided with a third driving part (10), a push plate (11) is connected to the power output end of the third driving part (10), the push plate (11) is correspondingly arranged at the tail end of the flow channel (1031) and faces the direction of the communication channel (1032), when the rotating disc (103) rotates to the material collecting unit (8), the third driving part (10) drives the push plate (11) to extend towards the direction of the communication channel (1032).

9. The sea cucumber quality detection device according to claim 1, characterized in that: Further comprising a control system, the control system comprises a central processing unit, and a data acquisition module, a classification decision module and a data storage module which are electrically connected to the central processing unit respectively; The data acquisition module comprises an image processing unit, a size calculation unit and a signal conditioning unit; The image processing unit is used for processing the image collected by the appearance detection unit (6) to identify the surface defects or abnormal morphology of the measured object (9); The size calculation unit is used for calculating the length, width and projected area of the measured object (9); The signal conditioning unit is used for receiving and processing the analog signals of the sensors for measuring weight in the weighing mechanism (4) and the elasticity detection mechanism (5), and converting them into digital data; The classification decision module fuses and analyzes the output data of the size calculation unit, the signal conditioning unit and the image processing unit based on the preset rules or models; When the weight of the measured object (9) is lower than the threshold value, the elastic recovery rate is lower than the threshold value, or the image recognition identifies serious defects, it is determined as waste; Otherwise, the products are graded according to the comprehensive score of size, weight and elasticity, and the corresponding classification instructions are generated and sent to the classification execution module; The data storage module is used for storing the original detection data, processing results, classification records and system operation logs of each measured object (9).

Images