A sampling device

By using a cutting tool module and a lifting platform in conjunction with a sample-taking device for cutting samples, the problems of low accuracy and efficiency in packaging material sampling have been solved, achieving high-precision and high-efficiency sample taking and improving the accuracy of density measurement.

CN224365790UActive Publication Date: 2026-06-16SUGON INFORMATION IND

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUGON INFORMATION IND
Filing Date
2025-05-29
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In existing technologies, the sampling accuracy and efficiency of packaging materials are low, which affects the accuracy of density measurement.

Method used

The sampling equipment, which includes a cutting tool module and a lifting platform, cuts the sample through the cooperation of the frame structure and the lifting platform, and quickly removes the sample through gaps and through holes. The position is monitored by sensors to improve accuracy and efficiency.

Benefits of technology

It enables high-precision cutting and rapid sampling of samples, improving the accuracy and efficiency of density measurement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a sampling equipment, including cutter module, mounting bracket and lift platform, and cutter module is installed in mounting bracket. Along the moving direction of lift platform, the relative arrangement of cutter module and the mesa of lift platform, and the mesa is used for placing the product of sampling. Cutter module includes frame structure and connecting portion, and the opening of frame structure faces the mesa. Frame structure is used for cutting the product of sampling. Along the moving direction of lift platform, and there is a gap between frame structure and mounting bracket, and connecting portion is located in the gap, and one end is connected with frame structure, and the other end is connected with mounting bracket, and the projection of connecting portion falls into the partial side wall of frame structure. Adopt the sampling equipment provided by the utility model can realize the complete cutting of the product of sampling, and improve the sampling precision of sample. In addition, the user can exert external force to the sample cut down in frame structure through the above-mentioned gap, so that the sample falls to the mesa through the opening, so as to realize the rapid taking of sample and improve the sampling efficiency of sample.
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Description

Technical Field

[0001] This utility model relates to the field of mechanical processing technology, and in particular to a sampling device. Background Technology

[0002] To ensure the safety and integrity of various products during long-distance transportation, packaging is necessary during transport. The packaging materials used must undergo rigorous testing to meet the required protective needs of the products. Currently, testing packaging materials (e.g., foam) involves manual sampling followed by density measurement. However, manual sampling suffers from low accuracy and efficiency, and this low accuracy directly impacts the accuracy of density measurements.

[0003] Therefore, how to improve the sampling accuracy and efficiency of samples in order to improve the measurement accuracy of sample density has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] This invention provides a sampling device to improve the sampling accuracy and efficiency of samples.

[0005] This utility model provides a sampling device, which includes a cutting tool module, a mounting frame, and a lifting platform. The cutting tool module is mounted on the mounting frame. Along the moving direction of the lifting platform, the cutting tool module and the platform surface are positioned opposite each other. The platform surface is used to place the product to be sampled. The cutting tool module includes a frame structure and a connecting part, with the opening of the frame structure facing the platform surface. The frame structure is used to cut the product to be sampled. Along the moving direction of the lifting platform, there is a gap between the frame structure and the mounting frame. The connecting part is located in the gap, with one end connected to the frame structure and the other end connected to the mounting frame. Along the moving direction of the lifting platform, the projection of the connecting part falls into a portion of the side wall of the frame structure. The height of the frame structure is A, the height of the gap is B, and the thickness of the product to be sampled is C. A, B, and C satisfy: A + B ≥ C.

[0006] The sampling device provided by this invention features a frame structure with its opening facing the platform of the lifting platform. Furthermore, the sum of the height of the frame structure and the height of the gap along the moving direction of the lifting platform is greater than or equal to the height of the product to be sampled. This allows the frame structure to completely cut the product during the lifting platform's movement towards the frame structure, resulting in a regular sample and improving sampling accuracy. Additionally, after the sample is cut through the frame structure, the lifting platform can move away from the frame structure. The user can then apply pressure to the cut sample within the frame structure through the aforementioned gap, causing the sample to fall through the opening onto the platform. This achieves rapid sample retrieval and improves sampling efficiency.

[0007] In one possible implementation of this invention, along the moving direction of the lifting platform, the height of the frame structure is A, the height of the gap is B, and the height of the product to be sampled is C, where A≤C and B≥C. Thus, as the lifting platform moves the product to be sampled toward the frame structure, a portion of the cut sample is located inside the frame structure, and the remainder is located in the gap between the frame structure and the mounting bracket. The user can then remove the cut sample from the gap, or alternatively, from the opening where the blade is located, which improves the sampling convenience of the sampling device.

[0008] In one possible implementation of this invention, the connecting portion includes a first arm and a second arm, which are evenly distributed and spaced apart along the circumference of the frame structure. This is to further improve the connection reliability between the frame structure and the mounting bracket.

[0009] In one possible implementation of this utility model, since A≤C and B≥C, and the width of the gap between the first arm and the second arm is greater than or equal to the width of the opening of the frame structure, the cut sample can be directly taken out from the sampling port formed by the first arm, the second arm, the frame structure, and the mounting bracket. This is beneficial for improving sampling accuracy while further enhancing sampling convenience.

[0010] In one possible implementation of this invention, the mounting bracket includes a through hole, the opening of which faces the opening of the frame structure along the moving direction of the lifting platform. The other end of the connecting part is connected to the side wall of the through hole, allowing the cut sample to be quickly removed through the through hole. Alternatively, the user can apply pressure to the cut sample through the through hole to remove the sample through the opening of the frame structure near the platform, which helps to improve the sampling diversity of the sampling equipment.

[0011] In one possible implementation of this invention, the sampling device includes two fixing parts that protrude from the sidewall of the through hole and are connected to the first arm and the second arm in a one-to-one correspondence. Since the opening area of ​​the through hole is larger than the opening area of ​​the frame structure, the user can directly insert their arm into the through hole and apply external force downwards through the through hole and then through the gap to the cut sample, causing the cut sample to move towards the through hole, thereby achieving rapid sample removal. This further enhances the sampling convenience of the sampling device.

[0012] In one possible implementation of this invention, the sampling device further includes a sensor mounted on a mounting bracket. The sensor is used to monitor the position of the product to be sampled, thereby further improving the sampling accuracy of the sampling device.

[0013] In one possible implementation of this invention, the sampling device includes at least two sensors, which are disposed on the outer periphery of the frame structure and evenly distributed along the circumference of the frame structure. This reduces the risk of cutting failure caused by the tool being placed off-center from the frame structure.

[0014] In one possible implementation of this invention, a groove is provided on the surface of the lifting platform, which is positioned opposite to the frame structure for placing the product to be sampled. This helps improve the positional accuracy of the product to be sampled, thereby effectively improving the sampling accuracy.

[0015] In one possible implementation of this invention, the sampling device further includes a cylinder for driving the lifting platform to move. This simplifies the device structure while fulfilling the need for mobility of the lifting platform. Attached Figure Description

[0016] Figure 1 A schematic diagram of the sampling device provided by this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the tool module of the provided sampling equipment;

[0018] Figure 3 for Figure 1 Front view of the provided sampling equipment along the Y direction;

[0019] Figure 4 for Figure 1 A schematic diagram showing the frame structure of the provided sampling equipment and the state of the product to be sampled when they first come into contact;

[0020] Figure 5 for Figure 1 A cross-sectional view of the lifting platform of the provided sampling equipment;

[0021] Figure 6 for Figure 1 A schematic diagram showing the state of the product to be sampled after cutting using the provided sampling equipment;

[0022] Figure 7 for Figure 1 A top view of the provided sampling equipment.

[0023] Reference numerals: 01-Product to be sampled; 1-Tool module; 11-Frame structure; 12-Connecting part; 121-First arm; 122-Second arm; 13-Notch; 2-Mounting bracket; 21-Fixing plate; 211-Through hole; 22-Support arm; 3-Lifting platform; 31-Groove; 4-Gap; 5-Cylinder; 6-Fixing part; 7-Sensor. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. However, the exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted. The terms expressing position and direction described in the embodiments of this utility model are illustrative based on the accompanying drawings, but changes can be made as needed, and all such changes are included within the protection scope of this utility model. The accompanying drawings of the embodiments of this utility model are only for illustrating relative positional relationships and do not represent actual proportions.

[0025] It should be noted that specific details are set forth in the following description to facilitate understanding of this utility model. However, this utility model can be implemented in many ways other than those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] To ensure the safety and integrity of various products during long-distance transportation, rigorous testing of packaging materials (such as foam) is crucial. As a key component protecting products from impact and vibration damage, the accuracy of foam density characteristic assessment is fundamental to ensuring packaging effectiveness. Density testing not only helps confirm whether the foam has sufficient cushioning capacity but also optimizes material usage and reduces costs. Therefore, accurate foam density measurement is an indispensable part of the packaging testing process.

[0027] Accurate measurement of foam density begins with high-quality sample taking. Ideally, the sample should have a regular geometry, such as a cube, which helps reduce measurement errors and improve the accuracy and reliability of the data. However, achieving this is not easy, especially with foam materials such as EPE (expanded polyethylene) and EPU (expanded polyurethane foam), commonly used in server packaging. These materials are widely used due to their excellent cushioning properties and lightweight characteristics, but their softness and deformability pose challenges to accurate sampling.

[0028] In current practice, foam sampling often employs manual cutting. While this method is simple and easy to implement, cutting errors, wear and tear on cutting tools, and uncertainties caused by human factors can all affect the shape and dimensional accuracy of the sample, thereby impacting the accuracy of density measurements.

[0029] In the foam production process, although large cutting machines are widely used for cutting large areas of foam, they are not designed for the preparation of small-sized, high-precision samples, and therefore are not suitable for sample taking in packaging testing.

[0030] In view of this, the sampling device provided by this utility model, by setting up a lifting platform and a frame structure cutter, and moving the lifting platform toward the frame structure cutter, realizes the cutting and removal of the sample on the lifting platform by the frame structure cutter, thereby improving sampling accuracy and sampling efficiency. To make the purpose, technical solution, and advantages of this utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] refer to Figure 1 , Figure 1 This is a schematic diagram of a sampling device provided by this utility model. The sampling device includes a tool module 1, a mounting frame 2, and a lifting platform 3. The tool module 1 is mounted on the mounting frame 2 and moves along the direction of movement of the lifting platform 3 (e.g., ...). Figure 1 (As shown in the Z-axis direction), the tool module 1 and the lifting platform 3 are arranged opposite each other, wherein the platform of the lifting platform 3 is used to place the product 01 to be sampled.

[0032] When specifically configuring tool module 1, such as Figure 2 As shown, Figure 2 For display Figure 1 A schematic diagram of a tool module 1 of the provided sampling device is shown. The tool module 1 includes a frame structure 11 and a connecting part 12, and the frame structure 11 is connected to the connecting part 12. The outer contour of the frame structure 11 can be, for example, a regular cube, a column, or other structure, and the opening of the frame structure 11 faces the table surface and is used as a tool. Figure 1 As shown, the cutting edge of the tool is positioned facing the table surface along the Z-axis. It can be understood that the tool of the frame structure 11 may include two opposing openings positioned along the Z-axis, and the tool of the frame structure 11 is used to cut the sample product 01 to be sampled, and the cut sample can be taken out through either opening of the frame structure 11.

[0033] Furthermore, such as Figure 3 As shown, Figure 3 For display Figure 1 The front view of the provided sampling device along the Y direction, along the moving direction of the lifting platform 3 (e.g., Figure 3 (As shown in the Z-axis direction), there is a gap 4 between the frame structure 11 and the mounting frame 2, and the connecting part 12 is located in the gap 4. One end of the connecting part 12 is connected to the frame structure 11, and the other end is connected to the mounting frame 2, so as to meet the requirement that the cut sample can be taken out through any opening of the frame structure 11.

[0034] It should be noted that this utility model does not limit the specific structure of the connecting part 12. For example, the connecting part 12 may include a rectangular piece, the height of which is set along the moving direction of the lifting platform 3. Furthermore, along the moving direction of the lifting platform 3, the projection of the connecting part 12 can completely fall within a portion of the side wall of the frame structure 11. For example, as... Figure 2 As shown, when the outer contour of the frame structure 11 is a cube, the thickness of the rectangular piece is less than or equal to the thickness of the sidewall of the cube, and the width of the rectangular piece is less than or equal to the side length of a single side of the cube, also taking into account... Figure 2 and Figure 3 This ensures a stable connection between the frame structure 11 and the mounting bracket 2, while also creating a notch 13 between the frame structure 11, the mounting bracket 2, and the connecting part 12 that can be used to contact the cut sample.

[0035] In addition, such as Figure 4 As shown, Figure 4 The state when the display frame structure 11 just comes into contact with the product to be sampled 01 is shown for ease of explanation, along the moving direction of the lifting platform 3 (e.g., Figure 4 (As shown in the Z direction), the height of the frame structure 11 is defined as A, the height of the gap 4 is defined as B, and the height of the product to be sampled 01 is defined as C; by setting A+B≥C, the sampling equipment can meet the cutting requirements of the foam.

[0036] It is worth mentioning that the connecting part 12 and the frame structure 11 can be separate structures, and are fixedly connected by welding. Alternatively, the connecting part 12 and the frame structure 11 can be an integral structure, which is beneficial to improving the overall structural strength.

[0037] Using the sampling device provided by this utility model, since the cutting edge of the blade of the frame structure 11 faces the table surface of the lifting platform 3, and the sum of the height of the frame structure 11 and the height of the gap 4 along the moving direction of the lifting platform 3 is greater than or equal to the height of the product to be sampled 01, the frame structure 11 can completely cut the foam as the lifting platform 3 moves the product to be sampled 01 (e.g., foam) toward the cutting edge of the blade of the frame structure 11, thus improving the sampling accuracy while obtaining a regular foam sample. Furthermore, after the foam sample is cut off by the frame structure 11, the lifting platform 3 can move away from the frame structure 11. Then, the user can apply pressure to the foam sample cut off by the frame structure 11 through the gap 13 between the frame structure 11 and the mounting bracket 2, causing the foam sample to fall onto the table surface through the opening, thereby improving the sampling efficiency while achieving rapid retrieval of the foam sample.

[0038] It is worth mentioning that, such as Figure 5 As shown, Figure 5The cross-sectional view of the lifting platform 3 is used to display the lifting platform 3. The platform surface of the lifting platform 3 can also be provided with a groove 31, and the groove 31 is set opposite to the frame structure 11. During the cutting process of the product to be sampled 01, the product to be sampled 01 can be placed in the groove 31, which helps to improve the positional accuracy of the product to be sampled 01, thereby effectively improving the sampling accuracy of the sample.

[0039] Furthermore, this utility model does not limit the driving method of the lifting platform 3. For example, such as Figure 3 As shown, it can be driven by a cylinder 5, which is installed on the side of the lifting platform 3 away from the frame structure 11, so as to drive the lifting platform 3 to move toward or away from the frame structure 11 and simplify the equipment structure.

[0040] In a specific embodiment, as described above, the height of the frame structure 11 is A, the spatial height of the gap 4 between the frame structure 11 and the mounting bracket 2 is B, and the height of the product 01 to be sampled is C. Figure 4 As shown, A ≤ C and B ≥ C. Thus, during the process of the lifting platform 3 moving the sampled product 01 towards the frame structure 11, reference is also made... Figure 4 and Figure 6 , Figure 6 This is used to demonstrate the state of sample product 01 after it has been completely cut, such as... Figure 6 As shown, at this time, part of the cut sample is located inside the frame structure 11, and the rest is located in the gap 4 between the frame structure 11 and the mounting bracket 2. Since B≥C, the user can take out the cut sample from the gap 4. Alternatively, the user can also take it out from the opening where the blade is located, which helps to improve the sampling convenience of the sampling device.

[0041] In an optional embodiment where the connecting part 12 is provided, reference is also made to... Figure 1 and Figure 2 The connecting part 12 includes a first arm 121 and a second arm 122, and the first arm 121 and the second arm 122 are evenly distributed and spaced apart along the circumference of the frame structure 11. Both the first arm 121 and the second arm 122 can be rectangular pieces, which helps to further improve the connection reliability between the frame structure 11 and the mounting bracket 2.

[0042] It is worth mentioning that, please refer to the following: Figure 2 and Figure 3The width of the gap between the first arm 121 and the second arm 122 (i.e., the location of the notch 13) is greater than or equal to the width of the opening of the frame structure 11, in order to form a sampling port. Specifically, when the outer contour of the frame structure 11 is a regular cube, and the first arm 121 connects to one side of the cube, and the second arm 122 connects to the opposite side of the cube, and A≤C and B≥C, the cut sample can be directly taken out from the sampling port formed by the first arm 121, the second arm 122, the frame structure 11, and the mounting bracket 2. This is beneficial for improving sampling accuracy while further enhancing sampling convenience.

[0043] Continue to refer to Figure 1 In one specific embodiment, the mounting frame 2 includes a fixed plate 21 and multiple support arms 22. The multiple support arms 22 are evenly distributed around the lifting platform 3. The fixed plate 21 is connected to one end of the support arm 22 and is spaced apart from the platform surface of the lifting platform 3. At the same time, one end of the connecting part 12 is connected to the fixed plate 21 and the other end is connected to the frame structure 11. This makes the overall structure of the sampling device more compact, thereby helping to reduce the space occupied by the sampling device.

[0044] Also, please refer to Figure 1 and Figure 6 The fixed plate 21 is provided with a through hole 211, and along the moving direction of the lifting platform 3, the opening of the through hole 211 is opposite to the opening of the frame structure 11, and the connecting part 12 is used to connect one end of the fixed plate 21 to the side wall of the through hole 211. Since A≤C and B≥C, and a portion of the cut sample is located within the gap 4 between the frame structure 11 and the mounting bracket 2, the user can extend their arm or auxiliary clamping tool into the gap 4 after the lifting platform 3 descends, and then apply external force to the cut sample to move it towards the through hole 211, thereby achieving rapid sample removal. Alternatively, the user can also apply pressure to the cut sample through the through hole 211 to remove the sample through the opening of the frame structure 11 near the platform, which helps to improve the sampling diversity of the sampling equipment.

[0045] Alternatively, in an optional implementation, such as Figure 7 As shown, Figure 7 For display Figure 1The provided top view of the sampling device shows that the device includes two fixing parts 6, which protrude from the sidewall of the through hole 211 and are connected to the first arm 121 and the second arm 122 in a one-to-one correspondence. It is understood that in this embodiment, since the opening area of ​​the through hole 211 is larger than the opening area of ​​the frame structure 11, after the sample is cut, the lifting platform 3 can move in a direction away from the frame structure 11. The user can directly insert their arm into the through hole 211 and apply external force to the cut sample downwards through the through hole 211 and then through the notch 13, causing the cut sample to move towards the through hole 211, thereby achieving rapid sample removal. This further improves the sampling convenience of the sampling device.

[0046] It should be noted that one of the fixing parts 6 can be integrally formed with the first arm 121, and the other fixing part 6 can be integrally formed with the second arm 122. Alternatively, the fixing part 6 can also be integrally formed with the side wall of the through hole 211, which can be adjusted according to actual needs.

[0047] In one alternative implementation, such as Figure 1 As shown, the sampling device also includes a sensor 7, which is mounted on the mounting frame 2. For example, the sensor 7 can be mounted on the fixed plate 21 of the mounting frame 2 and opposite to the platform of the lifting platform 3, so as to monitor the position of the product 01 to be sampled, so as to further improve the sampling accuracy of the sampling device.

[0048] It should be noted that this invention does not specifically limit the definition of sensor 7; photoelectric sensor 7 can be selected as an example. In addition, this invention also includes a microcontroller that works in conjunction with photoelectric sensor 7. The microcontroller receives and processes the signals transmitted by photoelectric sensor 7 and controls the relay switch connected to cylinder 5 according to the signal status. By adjusting the on / off state of the relay switch, the power output of cylinder 5 is controlled, thereby completing the automated cutting task of the foam sample.

[0049] In addition, such as Figure 3 As shown, the sampling device can be equipped with at least two sensors 7, and the at least two sensors 7 are located on the outer periphery of the cutter of the frame structure 11 and are evenly distributed along the circumference of the frame structure 11. It is understood that multiple sensors 7 can collect signals from multiple points, which can reduce the risk of cutting failure due to the position of the sample to be cut deviating from the cutter of the frame structure 11.

[0050] After understanding the structure of the sampling device provided by this utility model, the sampling process of the sampling device will be explained below in combination with actual application scenarios, taking a frame structure of 2cm*2cm*1cm as an example.

[0051] First, during the sampling preparation stage, the user needs to adjust the distance threshold of the photoelectric sensor 7 according to the thickness of the product to be cut, so that the distance threshold reaches an appropriate height. Then, the product to be cut is placed on the platform of the lifting platform 3. The photoelectric sensor 7 then sends a signal to the microcontroller. If the microcontroller receives a low-level signal, it indicates that the product to be cut has not yet been placed on the platform of the lifting platform 3, or that the vertical direction between the placement of the product to be cut and the cutter of the frame structure 11 is offset, and the position of the product to be cut on the lifting platform 3 needs to be adjusted. When the low-level signal changes to a high-level signal, it means that the product to be cut has been placed correctly.

[0052] Furthermore, once the microcontroller confirms that the product to be cut is in place, it immediately controls the relay to activate, thereby turning on the power to cylinder 5. Subsequently, the cylinder 5 push rod begins to move upwards, causing the lifting platform 3 and the product to be cut to rise together. During this movement, the cutter of the frame structure 11 precisely cuts the product. To ensure cutting accuracy, the rising distance of the cylinder 5 push rod is precisely adjusted so that the platform surface of the lifting platform 3 contacts the cutting edge of the cutter in the frame structure 11.

[0053] After the first sample cutting is completed, the user can insert their arm into the through hole 211 and apply external force to the cut sample through the gap 4 from the through hole 211 downwards, so that the cut sample moves towards the through hole 211, thereby achieving rapid sample removal.

[0054] It should be noted that if the thickness of the product being cut is greater than 2cm (e.g., 6cm), and the size of the sample for density testing needs to meet the requirement of 2cm*2cm*2cm, then the sample needs to be cut a second time.

[0055] At this point, the 2cm*2cm*6cm sample obtained from the first cut needs to be placed into the groove 31 on the platform of the lifting platform 3, with the side of the 2cm*6cm sample in contact with the bottom surface of the groove 31, and then cut a second time to finally obtain a 2cm*2cm*2cm sample. It is worth mentioning that in the process of removing the 2cm*2cm*2cm sample from the frame structure 11, there is no need to move the lifting platform 3. The user only needs to put their arm into the through hole 211 and then through the notch 13 to quickly remove the sample.

[0056] In summary, the sampling device provided by this utility model, because the cutting edge of the blade of the frame structure 11 faces the table surface of the lifting platform 3, and the sum of the height of the frame structure 11 and the height of the gap 4 along the moving direction of the lifting platform 3 is greater than or equal to the height of the product to be sampled 01, allows the frame structure 11 to completely cut the foam as the lifting platform 3 moves the product to be sampled 01 (e.g., foam) toward the cutting edge of the blade of the frame structure 11. This results in a regular foam sample while improving the sampling accuracy. Furthermore, after the foam sample is cut off by the frame structure 11, the lifting platform 3 can move away from the frame structure 11. The user can then apply pressure to the cut foam sample within the frame structure 11 through the gap 4, causing the foam sample to fall onto the table surface through the opening. This achieves rapid retrieval of the foam sample while improving the sampling efficiency.

[0057] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A sampling device, characterized in that, The system includes a tool module, a mounting bracket, and a lifting platform. The tool module is mounted on the mounting bracket. Along the moving direction of the lifting platform, the tool module and the platform surface are positioned opposite each other. The platform surface is used to place the product to be sampled. The cutting tool module includes a frame structure and a connecting part, with the opening of the frame structure facing the table surface; the frame structure is used to cut the product to be sampled. Along the moving direction of the lifting platform, there is a gap between the frame structure and the mounting frame, the connecting part is located in the gap, and one end is connected to the frame structure and the other end is connected to the mounting frame; Along the moving direction of the lifting platform, the projection of the connecting part falls into part of the side wall of the frame structure, and the height of the frame structure is A, the height of the gap is B, and the thickness of the product to be sampled is C; and A, B and C satisfy: A+B≥C.

2. The sampling device according to claim 1, characterized in that, A, B, and C satisfy: A≤C and B≥C.

3. The sampling device according to claim 2, characterized in that, The connecting part includes a first arm and a second arm, which are evenly distributed and spaced apart along the circumference of the frame structure.

4. The sampling device according to claim 3, characterized in that, The width of the gap between the first arm and the second arm is greater than or equal to the width of the opening in the frame structure.

5. The sampling device according to claim 3, characterized in that, The mounting bracket includes a through hole, and along the moving direction of the lifting platform, the opening of the through hole is opposite to the opening of the frame structure; The other end of the connecting part is connected to the side wall of the through hole.

6. The sampling device according to claim 5, characterized in that, The sampling device includes two fixing parts that protrude from the sidewall of the through hole and are connected to the first arm and the second arm in a one-to-one correspondence.

7. The sampling device according to any one of claims 1 to 6, characterized in that, The sampling device also includes a sensor mounted on the mounting bracket, which is used to monitor the position of the product to be sampled.

8. The sampling device according to claim 7, characterized in that, The sampling device includes at least two sensors, which are disposed on the outer periphery of the frame structure and are evenly distributed along the circumference of the frame structure.

9. The sampling device according to any one of claims 1 to 6, characterized in that, The lifting platform has a groove on its surface, which is positioned opposite to the frame structure and is used to place the product to be sampled.

10. The sampling device according to claim 1, characterized in that, The sampling device also includes a cylinder, which is used to drive the lifting platform to move.