Sampling device

Abstract

The utility model provides a sampling device which comprises a sampling part movably arranged in a material conveying groove and used for collecting a material sample in the material conveying groove; the detection part is arranged on the first direction side of the sampling part and is used for measuring the width of the material sample collected by the sampling part; the air injection part is fixed relative to the sampling part, the output end of the air injection part faces the first direction, and the air injection part is used for blowing the material sample to the detection part. Therefore, on-line detection of the tobacco shred width is achieved, and material samples can be continuously collected and measured in the material conveying process. Compared with a traditional off-line mode, the detection data volume is greatly increased, the quality condition of the tobacco shreds can be reflected more comprehensively, and therefore the quality uniformity of the tobacco shreds can be judged more accurately. Meanwhile, the cut tobaccos do not need to be manually selected for testing, a large amount of labor cost is saved, the human factor influence possibly caused by manual selection of the cut tobaccos is avoided, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of tobacco processing, and specifically relates to a sampling device. Background Art

[0002] In tobacco processing, the uniformity of cut tobacco plays a key role in controlling its quality. However, key parameters such as tobacco width have traditionally been measured offline, requiring manual testing of a portion of the tobacco. This approach has significant drawbacks. Firstly, it cannot continuously measure tobacco width, resulting in insufficient test data and difficulty accurately determining tobacco uniformity. Secondly, this method requires significant labor costs, resulting in low efficiency and the potential for human error to affect the accuracy of test results. Utility Model Content

[0003] Therefore, the technical problem to be solved by this application is to provide a sampling device that can detect the width of tobacco shreds online, increase the amount of detection data, and at the same time eliminate the need for manual selection of tobacco shreds for testing, saving a lot of labor costs and improving the accuracy of the detection results.

[0004] In order to solve the above problems, the present application provides a sampling device, comprising:

[0005] a sampling portion, movably disposed in the material conveying trough, for collecting material samples in the material conveying trough;

[0006] a detection portion, disposed on the first direction side of the sampling portion, for measuring the width of the material sample collected by the sampling portion;

[0007] The air-jet portion is fixed relative to the sampling portion, and the output end of the air-jet portion faces a first direction, and is used for blowing the material sample to the detection portion.

[0008] Optionally, a first linear module is fixedly provided on the material conveying trough, the first linear module extends in the same direction as the material conveying trough, a second linear module is slidingly provided on the first direction side of the first linear module, the second linear module extends in a direction perpendicular to the material conveying trough, and the sampling part is slidingly provided on the first direction side of the second linear module.

[0009] Optionally, the sampling portion is a comb-tooth bearing plate, the material conveying trough is a vibration trough, and the comb-tooth bearing plate contacts the material layer in the vibration trough to achieve the material sample collection.

[0010] Optionally, the width of the comb-tooth carrying plate is greater than the length of the material sample.

[0011] Optionally, the sampling part includes a carrier, a telescopic cylinder and a suction cup. The carrier is rotatably arranged on the side of the material layer in the material conveying trough away from the bottom of the trough. The rotation path of the carrier includes a material picking station and a material receiving station. The driving end of the telescopic cylinder is connected to the suction cup. When the carrier rotates from the material receiving station to the material picking station, the telescopic cylinder is used to drive the suction cup to move toward the material layer. When the carrier rotates from the material picking station to the material receiving station, the telescopic cylinder is used to drive the suction cup to move away from the material layer. The suction cup is used to adsorb the material sample when the carrier rotates to the material picking station, and release the material sample when the carrier rotates to the material receiving station.

[0012] Optionally, an adsorption belt is provided on the suction cup, and the adsorption belt is used to adsorb the material sample. The ratio of the area of the adsorption belt to the surface area of the suction cup is 1 / 4 to 1 / 2.

[0013] Optionally, the adsorption belt is in the shape of an elongated strip.

[0014] Optionally, the angle between the sampling portion and the material layer in the material conveying trough is adjustable.

[0015] Optionally, the sampling device further includes a position sensor, which is fixed relative to the sampling portion and is used to sense the spacing distance between the sampling portion and the material layer in the material conveying trough.

[0016] Optionally, the detection portion includes a detection platform, and the detection platform and the material sample collected by the sampling portion are located on the same plane.

[0017] Beneficial effects

[0018] The sampling device provided in the embodiment of the present invention can automatically perform operations such as sampling, measuring and blowing material samples by providing a sampling part, a detection part and an air-jet part, thereby improving the detection efficiency and meeting the high-efficiency production requirements of tobacco processing. Specifically, it realizes the online detection of the width of tobacco shreds, and can continuously collect material samples and perform measurements during the material conveying process. Compared with the traditional offline mode, the amount of detection data is greatly increased, which can more comprehensively reflect the quality status of tobacco shreds, thereby more accurately determining the quality uniformity of tobacco shreds. At the same time, there is no need to manually select tobacco shreds for testing, which saves a lot of labor costs, avoids the influence of human factors that may be caused by manual selection of tobacco shreds, and improves the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a sampling device according to an optional embodiment of the present application;

[0020] Figure 2 This is a schematic structural diagram of a sampling device according to another optional embodiment of the present application.

[0021] The reference numerals indicate:

[0022] 1. Sampling unit; 11. Comb carrier plate; 12. Loading platform; 13. Telescopic cylinder; 14. Suction cup; 2. Detection unit; 21. Detection platform; 3. Air jet unit; 4. First linear module; 5. Second linear module; 6. First adapter plate; 7. Second adapter plate; 8. Position sensor. DETAILED DESCRIPTION

[0023] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0027] See also Figure 1 and Figure 2As shown, according to an embodiment of the present application, a sampling device is provided, including: a sampling part 1, which is movably arranged in a material conveying trough, and is used to collect material samples in the material conveying trough; a detection part 2, which is arranged on the first direction side of the sampling part 1, and is used to measure the width of the material sample collected by the sampling part 1; an air jet part 3, which is relatively fixed to the sampling part 1, and the output end of the air jet part 3 is facing the first direction, and is used to blow the material sample to the detection part 2.

[0028] Among them, the sampling device can be used for tobacco, tea, cotton, wool, medicinal powder, etc., and this application does not limit this.

[0029] Specifically, take the use of a sampling device for tobacco as an example. First, the sampling unit 1 moves within the material conveying trough. When it reaches the sampling position, it collects tobacco from the material conveying trough to obtain a tobacco sample. Then, because the air jet unit 3 is relatively fixed to the sampling unit 1, after the sampling unit 1 completes collecting the tobacco sample, the air jet unit 3 is activated. The output end of the air jet unit 3 faces a first direction, and the air jet blows the tobacco sample collected by the sampling unit 1 in the first direction through the ejected airflow. Then, under the action of the airflow, the tobacco sample is blown to the detection unit 2 located on the first direction side of the sampling unit 1. Finally, the detection unit 2 measures the width of the blown tobacco sample, completing the workflow of the entire sampling device. This achieves online detection of tobacco width, allowing tobacco samples to be continuously collected and measured during the tobacco conveyance process. Compared with the traditional offline mode, the amount of detection data is greatly increased, which can more comprehensively reflect the quality of the tobacco, thereby more accurately determining the quality uniformity of the tobacco. At the same time, there is no need to manually select tobacco for testing, which saves a lot of labor costs, avoids the influence of human factors that may be caused by manual selection of tobacco, and improves the accuracy of the test results.

[0030] It can be understood that the material conveying trough can be a long channel structure, and the first direction can be the width direction of the material conveying trough.

[0031] The sampling portion 1 may be of a mechanical grabbing type, a negative pressure suction type, a scraping type, etc., and this application does not limit this. For example, the sampling portion 1 may be of a mechanical grabbing type, where a controllable mechanical arm and clamp are used to move within the material conveying trough and grab the material sample; the sampling portion 1 may be of a negative pressure suction type, where a suction nozzle or straw is provided, and a vacuum pump or other negative pressure generating device is connected to generate negative pressure at the suction nozzle, thereby sucking the material sample from the material conveying trough; the sampling portion 1 may be of a scraping type, where a scraper or blade is moved within the material conveying trough to scrape the material off as a sample.

[0032] Specifically, the sampling unit 1 is movably disposed within the material conveying trough. In one embodiment, mechanical guide rails are installed on both sides or above the material conveying trough, and the sampling unit 1 is driven by a motor or other power device to move along the guide rails via a structure such as a slider or roller that cooperates with the guide rails. In another embodiment, a chain or belt drive system is provided around the material conveying trough, and the sampling unit 1 is fixedly connected to the chain or belt. The chain or belt is driven by a motor to rotate, thereby driving the sampling unit 1 to move within the material conveying trough.

[0033] Among them, the detection part 2 can be a light curtain measuring device, a laser displacement sensor combination measuring device, an image recognition measuring device, etc., and this application does not limit this. For example, the detection part 2 is a light curtain measuring device, which is composed of a transmitter and a receiver. The transmitter emits a series of parallel light rays to form a light curtain. When the material passes through the light curtain, it will block part of the light. The receiver determines the width of the material based on the changes in the received light; the detection part 2 is a laser displacement sensor combination measuring device, which includes two or more laser displacement sensors, which are aimed at the material sample from different angles. The width of the material is calculated by measuring the change in the distance between the sensor and the material sample; the detection part 2 is an image recognition measuring device, which uses a high-definition camera to capture an image of the material sample, and then analyzes the image through image processing software to identify the edge of the material sample and measure its width.

[0034] The jet section 3 can be a compressed air jet, a fan jet, etc., which is not limited in this application. For example, the jet section 3 is a compressed air jet, and the compressed air is stored in an air tank by connecting an air compressor. When the jet is needed, the valve is opened, and the compressed air is transported through the pipeline to the nozzle fixed relative to the sampling section 1, and ejected in a first direction, blowing the material sample to the detection section 2; the jet section 3 is a fan jet, and a micro air compressor is directly installed on the sampling device to provide compressed air for the nozzle of the jet section 3.

[0035] Specifically, multiple nozzles can be provided to improve airflow efficiency and ensure that the material sample is stably delivered to the detection section 2. The multiple nozzles can be arranged linearly, annularly, or in a matrix, and this is not limited to this arrangement in this application. It is understood that when a linear arrangement is used, multiple nozzles are arranged sequentially along the direction of material delivery, forming a continuous airflow, allowing the material sample to move quickly and smoothly under the propulsion of the airflow. For relatively slender materials, such as filamentous tobacco or tea leaves, this arrangement can better ensure that the material is evenly stressed along its length, avoiding localized accumulation or deviation. When a circular arrangement is used, multiple nozzles can simultaneously spray air from multiple directions, making it suitable for irregularly shaped or easily rolling materials, such as granular medicinal powders. Annular nozzles can generate a more uniform centripetal airflow, gathering the material sample and blowing it toward the detection section 2, reducing material scattering and loss during delivery. When a matrix arrangement is used, multiple nozzles provide a more flexible airflow solution. By controlling the opening or closing of nozzles in different positions, the intensity and direction of the airflow can be adjusted to accommodate material samples of different sizes, shapes, and weights. For example, for larger materials, such as cotton or wool, more nozzles can be opened to increase the jet force; while for smaller material samples, some nozzles can be selectively opened to avoid excessive airflow and splashing of materials.

[0036] In some possible implementations disclosed in this application, see Figure 1 and Figure 2 As shown, a first linear module 4 is fixedly provided on the material conveying trough, and the first linear module 4 extends in the same direction as the material conveying trough. A second linear module 5 is slidingly provided on the first direction side of the first linear module 4, and the second linear module 5 extends in a direction perpendicular to the material conveying trough. A sampling part 1 is slidingly provided on the first direction side of the second linear module 5.

[0037] The first linear module 4 can be arranged on both sides or above the material conveying trough and extend along the length direction of the material conveying trough, thereby providing a linear motion path in the material conveying direction for the sampling part 1.

[0038] In the width direction of the material conveying trough, a first adapter plate 6 is slidably provided on one side of the first linear module 4 , and the second linear module 5 is relatively fixed to the first adapter plate 6 .

[0039] The second linear module 5 extends in a direction perpendicular to the material conveying trough, thereby providing the sampling portion 1 with a linear motion path perpendicular to the first linear module 4 .

[0040] Among them, a second adapter plate 7 is slidably provided on the side of the second linear module 5 facing away from the first linear module 4, and the sampling part 1 is relatively fixed to the second adapter plate 7, so that the sampling part 1 can be moved in a direction perpendicular to the material conveying trough through the second linear module 5. And because the second linear module 5 can slide on the first linear module 4, the sampling part 1 can actually move two-dimensionally within a plane. Therefore, the position of the sampling part 1 can be accurately adjusted in two mutually perpendicular directions according to needs, so that the sampling part 1 can achieve accurate two-dimensional positioning within the plane of the material conveying trough. In other words, the sampling position can be flexibly adjusted according to different material distribution conditions and detection requirements to ensure that representative material samples are collected, thereby improving the accuracy of the detection results.

[0041] In some possible implementations disclosed in this application, see Figure 1 As shown, the sampling portion 1 is a comb-tooth bearing plate 11, the material conveying trough is a vibration trough, and the comb-tooth bearing plate 11 contacts the material layer in the vibration trough to realize material sample collection.

[0042] By using the comb-toothed carrier plate 11 in conjunction with the vibration trough, the vibration of the trough can be used to loosen and evenly distribute the material, further improving the efficiency and representativeness of sampling. The vibration of the trough can continuously flow and refresh the material, ensuring that the sampling unit 1 can collect material samples at different locations each time.

[0043] Among them, the comb tooth bearing plate 11 is located at the bottom of the second adapter plate 7, and the comb tooth bearing plate 11 includes a plurality of bearing teeth, which extend along the width direction of the material conveying trough and are arranged at intervals along the length direction of the material conveying trough. There is a gap between two adjacent bearing teeth to form a forking space.

[0044] Specifically, when the material is conveyed in the vibration trough, the material is continuously loosened and flows in the vibration trough due to the vibration of the vibration trough. The multiple load-bearing teeth of the comb-tooth bearing plate 11 are in contact with the material layer in the vibration trough. Multiple load-bearing teeth can be inserted into the material layer. Under the vibration of the vibration trough and the flow of the material, part of the material will naturally fill the gap between two adjacent load-bearing teeth. As the comb-tooth bearing plate 11 moves or stays still for a period of time in the vibration trough, a certain amount of material will be carried on the comb teeth, thereby realizing the collection of material samples. It should be noted that compared with other sampling methods, the contact between the comb-tooth bearing plate 11 and the material is relatively gentle, which can reduce damage to the material. In the process of collecting material samples, the load-bearing teeth will not cause excessive extrusion or damage to the material, thereby avoiding the material from being broken or deformed during the sampling process, maintaining the original state of the material, and ensuring that the quality and performance of the material are not affected.

[0045] In the above embodiment, the width of the comb-teeth carrying plate 11 is greater than the length of the material sample, thereby ensuring that the material sample can be completely covered and carried by the comb-teeth carrying plate 11 .

[0046] Specifically, when the comb-tooth supporting plate 11 contacts the material layer in the vibration trough, since the width of the comb-tooth supporting plate 11 is greater than the length of the material sample, the material sample can fall stably on the comb-tooth supporting plate 11 no matter where it is collected, and there will be no situation where part of the material sample falls due to insufficient width of the comb-tooth supporting plate 11.

[0047] In addition, the sampling portion 1 can also be configured as follows:

[0048] See also Figure 2 As shown, the sampling part 1 includes a loading platform 12, a telescopic cylinder 13 and a suction cup 14. The loading platform 12 is rotatably arranged on the side of the material layer in the material conveying trough away from the bottom of the trough. The rotation path of the loading platform 12 includes a material picking station and a material receiving station. The driving end of the telescopic cylinder 13 is connected to the suction cup 14. When the loading platform 12 rotates from the material receiving station to the loading station, the telescopic cylinder 13 is used to drive the suction cup 14 to move toward the direction close to the material layer. When the loading platform 12 rotates from the material picking station to the material receiving station, the telescopic cylinder 13 is used to drive the suction cup 14 to move toward the direction away from the material layer. The suction cup 14 is used to adsorb the material sample when the loading platform 12 rotates to the material picking station, and release the material sample when the loading platform 12 rotates to the material receiving station.

[0049] It should be noted that, when the sampling portion 1 is composed of the stage 12 , the telescopic cylinder 13 and the suction cup 14 , the sampling portion 1 is still slidably disposed on the second linear module 5 via the second adapter plate 7 .

[0050] A rotating connector is provided at the bottom of the second adapter plate 7 , and the stage 12 is rotatably connected to the rotating connector, so that the stage 12 can rotate with the axis of the rotating connector as the rotation center.

[0051] Specifically, the rotating connection member is a rotating shaft, which can be directly driven by a rotating motor, and the rotation connection point between the rotating shaft and the stage 12 is located at the edge of the stage 12.

[0052] The loading platform 12 is horizontally arranged, and the telescopic cylinder 13 is located above the loading platform 12 .

[0053] Specifically, the telescopic cylinder 13 is fixedly disposed on the side wall of the second adapter plate 7 facing away from the second linear module 5 .

[0054] The driving end of the telescopic cylinder 13 is arranged toward the material layer in the material conveying trough, and a suction cup 14 is fixedly provided on the driving end of the telescopic cylinder 13 .

[0055] Specifically, the entire sampling process is as follows: First, the stage 12 is at the material receiving station. When sampling is required, the stage 12 begins to rotate from the material receiving station to the material picking station. During the rotation process, the telescopic cylinder 13 drives the suction cup 14 to gradually approach the material layer. When the stage 12 reaches the material picking station, the suction cup 14 is in full contact with the material layer and absorbs the material sample by generating negative pressure. Next, the stage 12 rotates from the material picking station to the material receiving station. During the rotation process, the telescopic cylinder 13 drives the suction cup 14 to gradually move away from the material layer. When the stage 12 reaches the material picking station, the suction cup 14 releases the material sample, completing a sampling operation. This process can be repeated continuously to achieve continuous sampling of material samples.

[0056] It is understood that the receiving station is a position in the rotation path of the stage 12 relative to the suction cup 14. When the stage 12 is in the receiving station, the material sample released by the suction cup 14 can fall onto the stage 12. The unloading station is any position in the rotation path of the stage 12 except the receiving station, which can give way to the suction cup 14 to prevent the stage 12 from interfering with the movement path of the suction cup 14.

[0057] In the above embodiment, an adsorption belt is provided on the suction cup 14 for adsorbing the material sample. The ratio of the area of the adsorption belt to the surface area of the suction cup 14 is 1 / 4 to 1 / 2.

[0058] By setting the ratio of the area of the adsorption belt to the surface area of the suction cup 14 between 1 / 4 and 1 / 2, the area of the adsorbed material can be effectively limited, so that when the suction cup 14 adsorbs the material sample, it will not adsorb too much material due to the adsorption area being too large, so as to achieve precise control of the adsorption area and ensure that the amount of material adsorbed each time is relatively stable, which is convenient for subsequent detection and processing operations.

[0059] The adsorption zone may be an effective adsorption area formed by setting a shield on the adsorption surface of the suction cup 14 or etching or grooving the surface of the suction cup 14 .

[0060] Specifically, as one embodiment, a shielding object is set on the adsorption surface of the suction cup 14, such as a small piece of tape, plastic sheet, etc., to prevent adsorption of part of the area, thereby reducing the effective adsorption area. At this time, the area outside the local shielding on the adsorption surface of the suction cup 14 forms an adsorption belt; as another embodiment, by etching or grooving the surface of the suction cup 14, some areas cannot form effective adsorption. At this time, the area outside the etching or groove on the adsorption surface of the suction cup 14 forms an adsorption belt.

[0061] In some specific examples, the adsorption belt is in the shape of a long strip.

[0062] By designing the adsorption belt in an elongated shape, the contact line between the belt and the material sample is extended, providing a more uniform distribution of adsorption force during the adsorption process. Compared to other adsorption belt shapes, the elongated shape can better accommodate material samples of varying shapes and sizes, ensuring that the material is less likely to slip or shift during the adsorption process, thereby improving adsorption stability. Furthermore, due to the longer contact line, the elongated adsorption belt can better maintain contact with the material even in the presence of some vibration or shaking during material transportation, reducing the possibility of adsorption failure.

[0063] In some possible embodiments disclosed in the present application, the angle between the sampling portion 1 and the material layer in the material conveying trough is adjustable.

[0064] In the case where the sampling portion 1 is a comb-toothed carrier plate 11, the angle between the sampling portion 1 and the material layer in the material conveying trough can be adjusted so that the comb-toothed carrier plate 11 is rotatably connected to the second adapter plate 7. This allows the angle of the comb-toothed carrier plate 11 to be adjusted to better fit the material layer for materials with different stacking angles and shapes. For example, when materials are stacked at an angle in the material conveying trough, rotating the comb-toothed carrier plate 11 can align the tilt of the material with the comb-toothed carrier plate 11, allowing for more efficient insertion into the material layer for sampling, improving sampling accuracy and representativeness.

[0065] Specifically, the rotational connection between the comb-tooth bearing plate 11 and the second adapter plate 7 can be in the form of a hinge connection, a bearing connection, etc., which is not limited in this application.

[0066] In the case where the sampling portion 1 is composed of a loading platform 12, a telescopic cylinder 13, and a suction cup 14, the angle between the sampling portion 1 and the material layer in the material conveying trough can be adjusted so that the telescopic cylinder 13 is rotatably connected to the second adapter plate 7. This allows the suction cup 14 to be perpendicular to the material layer, increasing the suction area and generating a more uniform suction force. This ensures closer contact between the suction cup 14 and the material, enhancing the suction force and improving the suction stability. This ensures that the material is less likely to slip, shift, or fall during the suction process, ensuring the accuracy and reliability of sampling.

[0067] Specifically, the rotational connection between the telescopic cylinder 13 and the second adapter plate 7 can be in the form of a ball hinge connection, a joint connection, etc., which is not limited in this application. For example, the rotational connection between the telescopic cylinder 13 and the second adapter plate 7 adopts a ball hinge connection, which is composed of a ball head and a ball seat. The ball head is installed on the cylinder body of the telescopic cylinder 13, and the ball seat is installed on the second adapter plate 7. The ball head can rotate freely in the ball seat to achieve multi-angle rotation of the telescopic cylinder 13; the rotational connection between the telescopic cylinder 13 and the second adapter plate 7 adopts a joint connection, which includes a connecting seat, a rotating shaft, a bearing, a seal, etc. The connecting seats are respectively fixed on the telescopic cylinder 13 and the second adapter plate 7, and the rotating shaft is installed between the connecting seats, and relative rotation is achieved through the bearing.

[0068] In some possible implementations disclosed in this application, see Figure 1 and Figure 2 As shown, the sampling device also includes a position sensor 8, which is fixed relative to the sampling portion 1. The position sensor 8 is used to sense the distance between the sampling portion 1 and the material layer in the material conveying trough. This allows the sampling device to accurately adjust the position of the sampling portion 1 according to the height and accumulation state of different materials.

[0069] The position sensor 8 may be an ultrasonic sensor, a laser displacement sensor, etc., which can sense the distance between the sampling portion 1 and the material layer in the material conveying trough, and this application does not limit this.

[0070] In some possible implementations disclosed in this application, see Figure 1 and Figure 2 As shown, the detection unit 2 includes a detection table 21, which is located on the same plane as the material sample collected by the sampling unit 1. This ensures that the material sample will not be deformed or displaced due to height differences during the process of being transferred to the detection table 21 for measurement. Therefore, the measurement results can accurately reflect the actual size and characteristics of the material sample, thereby improving the accuracy of the detection.

[0071] The sampling device provided in the embodiment of the present application can automatically perform operations such as sampling, measuring and blowing material samples by setting a sampling part 1, a detection part 2 and an air-jet part 3, thereby improving the detection efficiency and adapting to the efficient production needs of tobacco processing. Specifically, it realizes the online detection of the width of tobacco shreds, and can continuously collect material samples and measure them during the material transportation process. Compared with the traditional offline mode, the amount of detection data is greatly increased, which can more comprehensively reflect the quality status of tobacco shreds, thereby more accurately determining the quality uniformity of tobacco shreds. At the same time, there is no need to manually select tobacco shreds for testing, which saves a lot of labor costs, avoids the influence of human factors that may be caused by manual selection of tobacco shreds, and improves the accuracy of the test results.

[0072] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0073] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. The above are merely preferred embodiments of the present application. It should be noted that those skilled in the art may make various improvements and variations without departing from the technical principles of the present application, and such improvements and variations shall also be considered within the scope of protection of the present application.

Claims

1. A sampling device, characterized in that: include: A sampling portion (1) is movably arranged in the material conveying trough and is used to collect material samples in the material conveying trough; A detection portion (2) is arranged on the first direction side of the sampling portion (1) and is used to measure the width of the material sample collected by the sampling portion (1); The air jet portion (3) is fixed relative to the sampling portion (1), and the output end of the air jet portion (3) faces a first direction and is used to blow the material sample to the detection portion (2).

2. The sampling device according to claim 1, characterized in that A first linear module (4) is fixedly provided on the material conveying trough, the first linear module (4) extends in the same direction as the material conveying trough, a second linear module (5) is slidably provided on the first direction side of the first linear module (4), the second linear module (5) extends in a direction perpendicular to the material conveying trough, and the sampling portion (1) is slidably provided on the first direction side of the second linear module (5).

3. The sampling device according to claim 1, characterized in that The sampling portion (1) is a comb-tooth bearing plate (11), the material conveying trough is a vibration trough, and the comb-tooth bearing plate (11) contacts the material layer in the vibration trough to achieve the material sample collection.

4. The sampling device according to claim 3, characterized in that The width of the comb-tooth bearing plate (11) is greater than the length of the material sample.

5. The sampling device according to claim 1, characterized in that The sampling portion (1) includes a loading platform (12), a telescopic cylinder (13) and a suction cup (14). The loading platform (12) is rotatably arranged on a side of the material layer in the material conveying trough away from the bottom of the trough. The rotation path of the loading platform (12) includes a material taking station and a material receiving station. The driving end of the telescopic cylinder (13) is connected to the suction cup (14). When the loading platform (12) rotates from the material receiving station to the material taking station, the telescopic cylinder (13) The telescopic cylinder (13) is used to drive the suction cup (14) to move toward the material layer. When the carrier (12) rotates from the material taking station to the material receiving station, the telescopic cylinder (13) is used to drive the suction cup (14) to move toward the material layer away from the material layer. The suction cup (14) is used to absorb the material sample when the carrier (12) rotates to the material taking station, and release the material sample when the carrier (12) rotates to the material receiving station.

6. The sampling device according to claim 5, characterized in that The suction cup (14) is provided with an adsorption belt, which is used to adsorb the material sample. The ratio of the area of the adsorption belt to the surface area of the suction cup (14) is 1 / 4 to 1 / 2.

7. The sampling device according to claim 6, characterized in that The adsorption belt is in the shape of an elongated strip.

8. The sampling device according to any one of claims 1 to 7, characterized in that: The angle between the sampling portion (1) and the material layer in the material conveying trough is adjustable.

9. The sampling device according to any one of claims 1 to 7, characterized in that: The sampling device further comprises a position sensor (8), the position sensor (8) being fixed relative to the sampling portion (1), and the position sensor (8) being used to sense the spacing distance between the sampling portion (1) and the material layer in the material conveying trough.

10. The sampling device according to any one of claims 1 to 7, characterized in that: The detection portion (2) comprises a detection platform (21), and the detection platform (21) and the material sample collected by the sampling portion (1) are located on the same plane.

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