Sampling equipment

Abstract

The utility model relates to the technical field of bottle making, and discloses sampling equipment which comprises a base, a synchronizing mechanism, a sampling mechanism and a sample storage mechanism, and the base is used for being arranged on one side of a sample conveying line; the synchronizing mechanism is connected with the base and used for driving the base to move synchronously with the sample conveying line in the conveying direction of the sample conveying line; the sampling mechanism is mounted on the base and is provided with a grabbing piece for grabbing a sample; and the sample storage mechanism is used for storing the samples grabbed by the grabbing piece. The sample is automatically grabbed by using the grabbing piece of the sampling mechanism, so that the labor cost can be reduced, the risk of scalding caused by manual sampling is avoided, the grabbing force is stable, and the influence on the accuracy of subsequent sample detection due to appearance deformation of the sample is avoided. The synchronous mechanism is arranged, so that the grabbing piece and the to-be-grabbed sample keep synchronous movement on the same horizontal line, the sample can be accurately grabbed conveniently, resampling is avoided, and the sampling accuracy and the sampling efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bottle making, in particular to a sampling device. Background Art

[0002] Glass container products often have many defects during production. Production workers need to keep abreast of the current product defect types and adjust the production process in a timely manner to avoid more defective products. Therefore, it is necessary to sample and test the newly produced glass container products. Currently, samples are generally grabbed manually using special bottle grabbing tools and sent for testing. However, manual sampling has the following problems: it not only wastes manpower, but also the temperature of newly produced glass products is high, and manual sampling easily poses the risk of burns; manual use of special bottle grabbing tools to clamp the bottles cannot fully control the force, which will cause slight deformation of the product appearance and affect the accuracy of sample testing; there are many products and the conveying speed is fast, making it difficult for manual workers to distinguish the product model number that needs to be sampled, and they can only discard and resample, resulting in waste. Utility Model Content

[0003] The purpose of the utility model is to provide a sampling device to accurately obtain the sampled product and avoid burns and deformation of the sample appearance caused by manual sampling.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The present application provides a sampling device, comprising:

[0006] A base, used to be arranged on one side of the sample conveying line;

[0007] a synchronization mechanism connected to the base, the synchronization mechanism being used to drive the base to move synchronously with the sample conveying line along the conveying direction of the sample conveying line;

[0008] A sampling mechanism is installed on the base, and the sampling mechanism is provided with a grabbing member for grabbing a sample;

[0009] The sample storage mechanism is used to store the samples grabbed by the grabbing member.

[0010] In some embodiments, the synchronization mechanism includes:

[0011] A slide rail is provided extending along the conveying direction of the sample conveying line, and the base is slidably assembled on the slide rail;

[0012] A driving assembly is connected to the base, and the driving assembly can drive the base to slide along the slide rail.

[0013] In some embodiments, the driving assembly includes a driving motor and a synchronous belt, the driving motor is connected to the synchronous belt, and the base is fixed on the synchronous belt.

[0014] In some embodiments, the grabbing member includes a first grabbing arm and a second grabbing arm, and the sampling mechanism includes a connecting assembly and a first driving member, and the connecting assembly is connected to the base; the first driving member has a fixed end and an execution end, and the fixed end is installed on the connecting assembly, and the first grabbing arm and the second grabbing arm are respectively hinged on the connecting assembly, and the execution end is connected to the first grabbing arm and the second grabbing arm to drive the first grabbing arm and the second grabbing arm to approach or move away from each other.

[0015] In some embodiments, the connecting assembly includes a second driving member, a first connecting arm and a second connecting arm, the second driving member is mounted on the base, one end of the first connecting arm is rotatably mounted on the base and connected to the second driving member, the second connecting arm is rotatably connected to the other end of the first connecting arm, and the second driving member, the first grabbing arm and the second grabbing arm are respectively mounted on the second connecting arm.

[0016] In some embodiments, the sampling mechanism also includes an opening and closing assembly installed on the connecting assembly, and the execution end, the first grabbing arm, and the second grabbing arm are respectively connected to the opening and closing assembly, and the execution end is used to drive the opening and closing assembly to perform opening and closing movements.

[0017] In some embodiments, the opening and closing assembly includes:

[0018] a first opening and closing arm, one end of which is rotatably connected to the connecting assembly and the other end of which is connected to the first grabbing arm;

[0019] a second opening and closing arm, one end of which is rotatably connected to the connecting assembly and the other end of which is connected to the second grabbing arm;

[0020] a first connecting rod, one end of which is rotatably connected to the middle portion of the first opening and closing arm, and the other end of which is rotatably connected to the actuating end;

[0021] The second connecting rod has one end rotatably connected to the middle portion of the second opening and closing arm, and the other end rotatably connected to the execution end.

[0022] In some embodiments, the first grabbing arm is detachably connected to the first opening and closing arm, and the first grabbing arm is bent at one end away from the first opening and closing arm; the second grabbing arm is detachably connected to the second opening and closing arm, and the second grabbing arm is bent at one end away from the second opening and closing arm.

[0023] In some embodiments, the sample storage mechanism comprises:

[0024] Bracket;

[0025] A sample storage table is rotatably mounted on the bracket, and a plurality of sample storage stations are provided along the circumference of the sample storage table;

[0026] The third driving member is in driving connection with the sample storage platform to drive the sample storage platform to rotate.

[0027] In some embodiments, the sampling device further includes a controller, the synchronization mechanism, the sampling mechanism, and the sample storage mechanism are electrically connected to the controller respectively, and the controller is also communicatively connected to the sample delivery production line.

[0028] Compared with the prior art, the sampling device of the present invention has the following advantages:

[0029] The sampling device of the embodiment of the present utility model includes a base, a synchronization mechanism, a sampling mechanism and a sample storage mechanism. A grabbing member for grabbing a sample is provided in the sampling mechanism, the sampling mechanism is mounted on the base, the base is connected to the synchronization mechanism, and the synchronization mechanism drives the base to move synchronously with the sample conveying line along the conveying direction of the sample conveying line. When the base moves, it drives the sampling mechanism to move synchronously, so that the grabbing member of the sampling mechanism can keep in sync with the sample to be grabbed. After determining the position of the sample to be grabbed on the sample conveying line, when the sample to be grabbed reaches a predetermined position, the sampling mechanism is driven by the synchronization mechanism to accelerate to the same speed as the sample conveying line and maintain the speed, while keeping the grabbing member of the sampling mechanism and the sample to be grabbed on the same horizontal line, so that the grabbing member can accurately grab the sample.

[0030] This application uses the grabbing element of the sampling mechanism to automatically grab samples, which not only reduces labor costs and avoids the risk of burns caused by manual sampling, but also maintains a stable gripping force, avoiding deformation of the sample's appearance and affecting the accuracy of subsequent sample testing. The synchronization mechanism is set to keep the grabbing element and the sample to be grabbed on the same horizontal line and move synchronously, facilitating accurate sample grabbing and avoiding resampling, thereby improving sampling accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of the sampling device described in the embodiment of the present application;

[0032] Figure 2 is a schematic diagram of a sampling mechanism in an embodiment of the present application;

[0033] Figure 3 yes Figure 2 A is an enlarged schematic diagram;

[0034] Figure 4 It is a schematic diagram of the sample storage mechanism in an embodiment of the present application.

[0035] Numbers in the figure:

[0036] 10. Base;

[0037] 20. Synchronous mechanism; 21. Slide rail; 22. Drive assembly; 221. Drive motor; 222. Synchronous belt;

[0038] 30. Sampling mechanism; 31. Grabbing member; 311. First grabbing arm; 312. Second grabbing arm; 32. Connecting assembly; 321. Second driving member; 322. First connecting arm; 323. Second connecting arm; 33. First driving member; 331. Fixed end; 332. Actuating end; 34. Opening and closing assembly; 341. First opening and closing arm; 342. Second opening and closing arm; 343. First connecting rod; 344. Second connecting rod;

[0039] 40. Sample storage mechanism; 41. Bracket; 42. Sample storage platform; 421. Sample storage station; 43. Third driving member;

[0040] 50. Sample conveying line; 51. Sample. DETAILED DESCRIPTION

[0041] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0043] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0044] See Figures 1-4As shown, the embodiment of the present invention provides a sampling device for grabbing a sample 51 of a newly formed glass container product, facilitating subsequent quality inspection of the sample 51 and timely adjusting the production process. The sampling device includes a base 10, a synchronization mechanism 20, a sampling mechanism 30, and a sample storage mechanism 40. The base 10 is used to be arranged on one side of a sample conveying line 50, wherein the sample conveying line 50 is a conveying line for producing glass containers; the synchronization mechanism 20 is connected to the base 10, and the synchronization mechanism 20 is used to drive the base 10 along the conveying direction ( Figure 1 The sampling mechanism 30 is installed on the base 10, and the sampling mechanism 30 is provided with a grabbing member 31 for grabbing the sample 51; the sample storage mechanism 40 is used to store the sample 51 grabbed by the grabbing member 31.

[0045] The sampling mechanism 30 is mounted on the base 10, and the base 10 is connected to the synchronization mechanism 20. The synchronization mechanism 20 drives the base 10 to move synchronously with the sample conveying line 50 along the conveying direction of the sample conveying line 50. When the base 10 moves, it drives the sampling mechanism 30 to move synchronously, so that the grabbing member 31 of the sampling mechanism 30 can maintain synchronization with the sample 51 to be grabbed. After determining the position of the sample 51 to be grabbed on the sample conveying line 50, when the sample 51 to be grabbed reaches a predetermined position, the synchronization mechanism 20 drives the sampling mechanism 30 to accelerate to the same speed as the sample conveying line 50 and maintain the speed, while keeping the grabbing member 31 of the sampling mechanism 30 and the sample 51 to be grabbed on the same horizontal line, so that the grabbing member 31 can accurately grab the sample 51.

[0046] The present application uses the gripping member 31 of the sampling mechanism 30 to automatically grasp the sample 51, which not only reduces labor costs and avoids the risk of burns caused by manual sampling, but also provides a stable gripping force, avoiding deformation of the sample's appearance and affecting the accuracy of subsequent sample testing. The synchronization mechanism 20 is provided to ensure that the gripping member 31 and the sample 51 to be grasped maintain synchronous movement on the same horizontal line, facilitating accurate grasping of the sample 51 and avoiding resampling, thereby improving sampling accuracy and efficiency.

[0047] See Figure 1As shown, in some embodiments, the synchronization mechanism 20 includes a slide rail 21 and a drive assembly 22. The slide rail 21 extends along the conveying direction of the sample conveying line 50, and the base 10 is slidably assembled on the slide rail 21. The drive assembly 22 is connected to the base 10 and can drive the base 10 to slide along the slide rail 21, thereby causing the base 10 to maintain synchronous movement with the sample conveying line 50 along the conveying direction of the sample conveying line 50. The slide rail 21 is arranged parallel to the conveying direction of the sample conveying line 50. The bottom of the base 10 is provided with a slide groove that matches the slide rail 21. The slide rail 21 and the slide groove cooperate to enable the base 10 to slide along the slide rail 21. The slide rail 21 can guide the movement of the base 10, ensuring that the movement path of the base 10 is parallel to the sample conveying line 50, thereby facilitating the synchronous movement of the grabber 31 and the sample 51 on the same horizontal line.

[0048] See Figure 1 As shown, in some embodiments, the drive assembly 22 includes a drive motor 221 and a synchronous belt 222. The drive motor 221 is connected to the synchronous belt 222, and the base 10 is fixed to the synchronous belt 222. The drive motor 221 drives the synchronous belt 222 to drive the base 10 along the slide rail 21. The drive motor 221 is a servo motor.

[0049] See Figure 2 and Figure 3 As shown, in some embodiments, the grasping member 31 includes a first grasping arm 311 and a second grasping arm 312 , and the sample 51 is grasped or released by the relative opening and closing of the first grasping arm 311 and the second grasping arm 312 .

[0050] See Figure 2 and Figure 3As shown, the sampling mechanism 30 includes a connecting assembly 32 and a first driving member 33. The connecting assembly 32 is connected to the base 10. The first driving member 33 has a fixed end 331 and an actuating end 332. The fixed end 331 is mounted on the connecting assembly 32. The first grabbing arm 311 and the second grabbing arm 312 are respectively hinged to the connecting assembly 32. The actuating end 332 is connected to the first grabbing arm 311 and the second grabbing arm 312 to drive the first grabbing arm 311 and the second grabbing arm 312 toward or away from each other. The fixed end 331 of the first driving member 33 is the fixed end, and the actuating end 332 is the end that can move telescopically. The first driving member 33 is a cylinder. The first driving member 33 drives its actuator end 332 to perform a telescopic motion. When the actuator end 332 is extended or retracted, it causes the first grabbing arm 311 and the second grabbing arm 312 to swing relative to the connecting assembly 32 in opposite directions, thereby moving the first grabbing arm 311 and the second grabbing arm 312 closer together to grasp the sample 51, or moving the first grabbing arm 311 and the second grabbing arm 312 away from each other to release the sample 51. By driving and controlling the telescopic motion of the actuator end 332 by the first driving member 33, the degree of opening and closing of the first grabbing arm 311 and the second grabbing arm 312 can be controlled, thereby maintaining a stable grip on the sample 51 and avoiding damage to the appearance of the sample 51.

[0051] See Figure 2 and Figure 3 As shown, in some embodiments, the connecting assembly 32 includes a second driving member 321, a first connecting arm 322, and a second connecting arm 323. The second driving member 321 is mounted on the base 10. One end of the first connecting arm 322 is rotatably mounted on the base 10 and connected to the second driving member 321. The second connecting arm 323 is rotatably connected to the other end of the first connecting arm 322. The second driving member 321, the first grabbing arm 311, and the second grabbing arm 312 are respectively mounted on the second connecting arm 323. The first connecting arm 322 and the second connecting arm 323 can be connected by a shaft, so that the second connecting arm 323 can rotate freely relative to the first connecting arm 322. The second driving member 321 can drive the first connecting arm 322 to rotate relative to the base 10. When the first connecting arm 322 rotates, the second connecting arm 323 is rotationally connected to the first connecting arm 322. Under the action of the gravity of the second connecting arm 323, the second connecting arm 323 always remains in a free hanging state, thereby allowing the grasping member 31 installed on the second connecting arm 323 to stably grasp the sample 51, keeping the sample 51 in a stable state and preventing the sample 51 from tipping over. The first connecting arm 322 is rotatably mounted on the side of the base 10 via a bearing, and the rotation axis is set horizontally. The second driving member 321 is a motor, which is connected to the first connecting arm 322 via a reducer in the base 10, driving the first connecting arm 322 to rotate.

[0052] See Figure 2 and Figure 3As shown, in some embodiments, the sampling mechanism 30 further includes an opening and closing assembly 34, which is mounted on the connecting assembly 32. The execution end 332, the first grabbing arm 311, and the second grabbing arm 312 are respectively connected to the opening and closing assembly 34. The execution end 332 is used to drive the opening and closing assembly 34 to open and close. The opening and closing assembly 34 is driven by the first driving member 33 to open and close, and the opening and closing assembly 34 drives the first grabbing arm 311 and the second grabbing arm 312 to open and close relative to each other, thereby grabbing or releasing the sample 51. The opening and closing assembly 34 serves as a supporting and mounting function for the grabbing member 31, and serves as a connecting bridge between the grabbing member 31 and the connecting assembly 32 and the first driving member 33.

[0053] See Figure 2 and Figure 3 As shown, the opening and closing assembly 34 includes a first opening and closing arm 341, a second opening and closing arm 342, a first connecting rod 343 and a second connecting rod 344. One end of the first opening and closing arm 341 is rotatably connected to the connecting assembly 32, specifically connected to the second connecting arm 323, and the other end is connected to the first grabbing arm 311; one end of the second opening and closing arm 342 is rotatably connected to the connecting assembly 32, specifically connected to the second connecting arm 323, and the other end is connected to the second grabbing arm 312; one end of the first connecting rod 343 is rotatably connected to the middle part of the first opening and closing arm 341, and the other end is rotatably connected to the execution end 332; one end of the second connecting rod 344 is rotatably connected to the middle part of the second opening and closing arm 342, and the other end is rotatably connected to the execution end 332. When the first driving member 33 drives the executing end 332 to perform telescopic movement, the executing end 332 drives the first connecting rod 343 and the second connecting rod 344 to swing, and drives the first opening and closing arm 341 to swing through the first connecting rod 343, and drives the second opening and closing arm 342 to swing through the second connecting rod 344, thereby driving the first grabbing arm 311 and the second grabbing arm 312 to swing, so that the first grabbing arm 311 and the second grabbing arm 312 release or clamp the sample 51.

[0054] In some embodiments, the first grabbing arm 311 is detachably connected to the first opening and closing arm 341, and the second grabbing arm 312 is detachably connected to the second opening and closing arm 342. This facilitates the removal and installation of the first grabbing arm 311 and the second grabbing arm 312, and also facilitates the timely replacement of the first grabbing arm 311 and the second grabbing arm 312 if they become damaged or worn. The first grabbing arm 311 is bent at one end away from the first opening and closing arm 341, and the second grabbing arm 312 is bent at one end away from the second opening and closing arm 342. The bent portions of the first grabbing arm 311 and the second grabbing arm 312 form a clamping jaw, forming a clamping space between the two for clamping the sample 51, thereby improving the stability of the clamping of the sample 51.

[0055] See Figure 1 and Figure 4As shown, in some embodiments, the sample storage mechanism 40 includes a bracket 41, a sample storage table 42, and a third drive member 43. The sample storage table 42 is rotatably mounted on the bracket 41. A plurality of sample storage stations 421 are circumferentially arranged on the sample storage table 42. The third drive member 43 is in transmission connection with the sample storage table 42 to drive the sample storage table 42 to rotate. The third drive member 43 drives the sample storage table 42 to rotate, adjusting the position of each sample storage station 421 so that the storage station where the sample 51 is to be placed is rotated to a position opposite to the sampling mechanism 30, facilitating the sampling mechanism 30 to place the sample 51 at the designated storage station. The sample storage table 42 is a circular table, and the plurality of sample storage stations 421 are evenly spaced along the circumference of the sample storage table 42. The third drive member 43 is a stepping motor.

[0056] In some embodiments, the sampling device further includes a controller, to which the synchronization mechanism 20, the sampling mechanism 30, and the sample storage mechanism 40 are electrically connected. The controller is also in communication with the sample conveyor line 50. Specifically, the first driving member 33, the second driving member 321, and the third driving member 43 are electrically connected to the controller, which conveniently records signals such as the sampling time, sampling number, and storage station time, and feeds them back to the sample conveyor line 50.

[0057] The working process of this utility model is:

[0058] When the sample 51 to be grabbed reaches the predetermined position, the synchronization mechanism 20 is started, and the drive motor 221 drives the base 10 to accelerate to the same speed as the sample conveying line 50 and maintains the speed, and ensures that the sampling mechanism 30 and the sample 51 are on the same horizontal line; the second driving member 321 drives the first connecting arm 322 to the predetermined position in advance. When the speed of the sampling mechanism 30 and the sample conveying line 50 is synchronized, the second driving member 321 drives the first connecting arm 322 to rotate in a set direction (clockwise in the figure) to the bottle grabbing position. After reaching the bottle grabbing position, the first driving member 33 drives the execution end 332 to extend, driving the opening and closing assembly 34 to retract and grab, so that the grabbing member 31 grabs the bottle;

[0059] After the gripper 31 grasps the sample 51, the second drive member 321 drives the first connecting arm 322 to rotate in the opposite direction (counterclockwise in the figure), returning the first connecting arm 322 to the predetermined position, and the drive motor 221 slowly decelerates until it stops. Both the drive motor 221 and the second drive member 321 are servo-driven, achieving precise positioning and deceleration.

[0060] The drive motor 221 rotates in the opposite direction, driving the sampling mechanism 30 back to the position opposite the sample storage mechanism 40. The second drive member 321 continues to drive the first connecting arm 322 to rotate (in a counterclockwise direction), slowly placing the sample 51 on the sample storage table 42. The first drive member 33 drives the actuator end 332 to reset in the opposite direction, causing the gripping member 31 to release the sample 51. Then, the second drive member 321 again drives the first connecting arm 322 to rotate in the set direction (clockwise in the figure) back to the predetermined position. The drive motor 221 drives the sampling mechanism 30 back to its initial position, awaiting the next sampling task.

[0061] The third driving member 43 drives the sample storage table 42 to rotate one storage station, transfers the current sample 51 to the next storage station, and transfers the last vacant storage station to the current position, waiting for the next sample 51;

[0062] The sampling device sends information such as the storage location of the currently obtained sample 51, the sampling time, and the mold number of the sample 51 to the sample conveying line 50, and displays it on the human-machine interface of the sample conveying line 50 for the operator to query.

[0063] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and replacements can be made without departing from the technical principles of the present invention. These improvements and replacements should also be regarded as the scope of protection of the present invention.

Claims

1. A sampling device, characterized in that: include: A base (10) is provided on one side of the sample conveying line (50); a synchronization mechanism (20) connected to the base (10), the synchronization mechanism (20) being used to drive the base (10) to move synchronously with the sample conveying line (50) along the conveying direction of the sample conveying line (50); A sampling mechanism (30) is mounted on the base (10), and the sampling mechanism (30) is provided with a grabbing member (31) for grabbing a sample (51); The sample storage mechanism (40) is used for storing the sample (51) grabbed by the grabbing member (31).

2. The sampling device according to claim 1, characterized in that The synchronization mechanism (20) comprises: A slide rail (21) is extended along the conveying direction of the sample conveying line (50), and the base (10) is slidably assembled on the slide rail (21); A driving assembly (22) is connected to the base (10), and the driving assembly (22) can drive the base (10) to slide along the slide rail (21).

3. The sampling device according to claim 2, characterized in that The driving assembly (22) comprises a driving motor (221) and a synchronous belt (222); the driving motor (221) is connected to the synchronous belt (222); and the base (10) is fixed on the synchronous belt (222).

4. The sampling device according to claim 1, characterized in that The grabbing member (31) includes a first grabbing arm (311) and a second grabbing arm (312); the sampling mechanism (30) includes a connecting assembly (32) and a first driving member (33); the connecting assembly (32) is connected to the base (10); the first driving member (33) has a fixed end (331) and an execution end (332); the fixed end (331) is installed on the connecting assembly (32); the first grabbing arm (311) and the second grabbing arm (312) are respectively hinged on the connecting assembly (32); the execution end (332) is connected to the first grabbing arm (311) and the second grabbing arm (312) to drive the first grabbing arm (311) and the second grabbing arm (312) to move closer to or away from each other.

5. The sampling device according to claim 4, characterized in that The connecting assembly (32) includes a second driving member (321), a first connecting arm (322) and a second connecting arm (323), wherein the second driving member (321) is mounted on the base (10), one end of the first connecting arm (322) is rotatably mounted on the base (10) and connected to the second driving member (321), the second connecting arm (323) is rotatably connected to the other end of the first connecting arm (322), and the second driving member (321), the first grabbing arm (311) and the second grabbing arm (312) are respectively mounted on the second connecting arm (323).

6. The sampling device according to claim 4, characterized in that The sampling mechanism (30) further comprises an opening and closing assembly (34) mounted on the connecting assembly (32); the execution end (332), the first grabbing arm (311), and the second grabbing arm (312) are respectively connected to the opening and closing assembly (34); and the execution end (332) is used to drive the opening and closing assembly (34) to perform an opening and closing movement.

7. The sampling device according to claim 6, characterized in that The opening and closing assembly (34) comprises: A first opening and closing arm (341), one end of which is rotatably connected to the connecting assembly (32) and the other end of which is connected to the first grabbing arm (311); A second opening and closing arm (342), one end of which is rotatably connected to the connecting assembly (32) and the other end of which is connected to the second grabbing arm (312); A first connecting rod (343), one end of which is rotatably connected to the middle portion of the first opening and closing arm (341), and the other end of which is rotatably connected to the execution end (332); The second connecting rod (344) has one end rotatably connected to the middle portion of the second opening and closing arm (342), and the other end rotatably connected to the execution end (332).

8. The sampling device according to claim 7, characterized in that The first grabbing arm (311) is detachably connected to the first opening and closing arm (341), and one end of the first grabbing arm (311) away from the first opening and closing arm (341) is bent; the second grabbing arm (312) is detachably connected to the second opening and closing arm (342), and one end of the second grabbing arm (312) away from the second opening and closing arm (342) is bent.

9. The sampling device according to claim 1, characterized in that The sample storage mechanism (40) comprises: Bracket (41); A sample storage platform (42) is rotatably mounted on the bracket (41), and a plurality of sample storage stations (421) are provided on the sample storage platform (42) along the circumference; The third driving member (43) is in driving connection with the sample storage platform (42) to drive the sample storage platform (42) to rotate.

10. The sampling device according to claim 1, characterized in that The sampling device further comprises a controller, the synchronization mechanism (20), the sampling mechanism (30) and the sample storage mechanism (40) are electrically connected to the controller respectively, and the controller is also communicatively connected to the sample conveying line (50).

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