Sampling device

Abstract

The invention 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 the field of tobacco processing, the uniformity of the quality of cut tobacco plays a key role in controlling the quality of cut tobacco. However, in the past, the measurement of key parameters such as the width of cut tobacco was mainly carried out in an offline mode, that is, a portion of cut tobacco was manually selected for testing. This method has obvious disadvantages. On the one hand, it is impossible to continuously detect the width of cut tobacco, resulting in insufficient test data and difficulty in accurately determining the uniformity of the quality of cut tobacco; on the other hand, this method requires a lot of labor costs, which is not only inefficient, but may also affect the accuracy of the test results due to human factors. Summary of the invention

[0003] Therefore, the technical problem to be solved by the present application is to provide a sampling device that can detect the width of tobacco shreds online, increase the amount of detection data, and eliminate the need for manual selection of tobacco shreds for testing, thereby 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 part, movably disposed in the material conveying trough, for collecting material samples in the material conveying trough;

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

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

[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 slidably 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 slidably 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 is in contact with a material layer in the vibration trough to achieve the material sample collection.

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

[0011] Optionally, the sampling portion includes a stage, a telescopic cylinder and a suction cup. The stage 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 stage 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 stage 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 stage rotates from the material picking station to the material receiving station, the telescopic cylinder is used to drive the suction cup to move toward the direction away from the material layer. The suction cup is used to adsorb the material sample when the stage rotates to the material picking station, and release the material sample when the stage 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 comprises a position sensor, wherein the position sensor is fixed relative to the sampling portion, and the position sensor 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 table, and the detection table 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 setting a sampling part, a detection part and an air-jet part, thereby improving the detection efficiency and meeting the efficient production requirements of tobacco processing. Specifically, in order to realize the online detection of the width of tobacco shreds, material samples can be continuously collected and measured 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 detection 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 are as follows:

[0022] 1. Sampling part; 11. Comb tooth bearing plate; 12. Loading table; 13. Telescopic cylinder; 14. Suction cup; 2. Detection part; 21. Detection table; 3. Air jet part; 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 the present 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 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 referred device or element 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] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0025] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to 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 the sampling device for tobacco as an example. First, the sampling part 1 moves in the material conveying trough, and when it reaches the sampling position, the tobacco in the material conveying trough is collected to obtain the tobacco sample. Then, since the air jet part 3 is relatively fixed to the sampling part 1, when the sampling part 1 completes the collection of the tobacco sample, the air jet part 3 is started. The output end of the air jet part 3 faces the first direction, and the tobacco sample collected by the sampling part 1 is blown to the first direction by the ejected airflow. Then, the tobacco sample is blown to the detection part 2 located on the first direction side of the sampling part 1 under the action of the airflow. Finally, the detection part 2 measures the width of the blown tobacco sample to complete the workflow of the entire sampling device. Thus, the online detection of the tobacco width is realized, and the tobacco sample can be continuously collected and measured during the tobacco 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 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 part 1 can be a mechanical grabbing type, a negative pressure suction type, a scraping type, etc., and this application does not limit this. For example, the sampling part 1 is a mechanical grabbing type, which moves and grabs material samples in the material conveying trough through a controllable mechanical arm and a clamp; the sampling part 1 is a negative pressure suction type, and a suction nozzle or a suction tube is provided, and a negative pressure is generated at the suction nozzle by connecting a vacuum pump or other negative pressure generating device, thereby sucking the material sample in the material conveying trough; the sampling part 1 is a scraping type, and the material is scraped off as a sample by moving a scraper or a scraper in the material conveying trough.

[0032] Specifically, the sampling part 1 is movably arranged in the material conveying trough. As an embodiment, mechanical guide rails are installed on both sides or above the material conveying trough, and the sampling part 1 moves along the guide rails under the drive of a motor or other power device through a slider or roller structure that cooperates with the guide rails; as another embodiment, a chain or belt transmission system is arranged around the material conveying trough, and the sampling part 1 is fixedly connected to the chain or belt, and the chain or belt is driven to rotate by the motor, thereby driving the sampling part 1 to move in the material conveying trough.

[0033] Among them, the detection part 2 can be a light curtain measuring device, a laser displacement sensor combined measuring device, an image recognition measuring device, etc., which is not limited in this application. 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 according to the change of the received light; the detection part 2 is a laser displacement sensor combined measuring device, including 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 the 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] Among them, the jet part 3 can be compressed air jet, fan jet, etc., which is not limited in this application. For example, the jet part 3 is compressed air jet, and the compressed air is stored in an air tank by connecting an air compressor. When jetting is required, open the valve, and the compressed air is transported to the nozzle relatively fixed to the sampling part 1 through a pipeline, and sprayed in a first direction to blow the material sample to the detection part 2; the jet part 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 part 3.

[0035] Specifically, multiple nozzles can be provided to improve the jetting efficiency and ensure that the material sample can be stably blown to the detection part 2. Multiple nozzles can be arranged linearly, annularly or in a matrix, etc., which is not limited in this application. It can be understood that when a linear arrangement is adopted, multiple nozzles are arranged in sequence along the direction of material conveying, which can form a continuous airflow, so that the material sample moves quickly and smoothly under the impetus of the airflow. For relatively slender materials, such as filamentary tobacco or tea leaves, this arrangement can better ensure that the material is uniformly stressed in the length direction to avoid local accumulation or deviation; when an annular arrangement is adopted, multiple nozzles can simultaneously spray from multiple directions, which is suitable for materials with irregular shapes or easy rolling, such as granular powders. The annular nozzle can produce a relatively uniform centripetal airflow, gather the material sample and blow it to the detection part 2, reducing the scattering and loss of the material during the conveying process; when a matrix arrangement is adopted, multiple nozzles can provide a more flexible jetting solution. By controlling the opening or closing of nozzles at different positions, the intensity and direction of the airflow can be adjusted to adapt to 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 causing material splashing.

[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 slidably 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 portion 1 is slidably 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 disposed 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 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-tooth bearing plate 11 in conjunction with the vibration trough, the vibration of the vibration trough can be used to make the material looser and more evenly distributed, further improving the efficiency and representativeness of sampling. The vibration of the vibration trough can make the material flow and update continuously, ensuring that the sampling part 1 can collect material samples at different positions 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 in the vibration trough for a period of time, 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, 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-tooth bearing 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-tooth bearing plate 11 .

[0046] Specifically, when the comb tooth supporting plate 11 contacts the material layer in the vibration groove, since the width of the comb tooth supporting plate 11 is greater than the length of the material sample, the material sample can stably fall 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 part 1 can also have the following configuration:

[0048] See also Figure 2 As shown, the sampling part 1 includes a stage 12, a telescopic cylinder 13 and a suction cup 14. The stage 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 stage 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 stage 12 rotates from the material receiving station to the material picking 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 stage 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 absorb the material sample when the stage 12 rotates to the material picking station, and release the material sample when the stage 12 rotates to the material receiving station.

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

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

[0051] Specifically, the rotating connecting 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 which is 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 arranged 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 can be understood that the material receiving station is a position relative to the suction cup 14 in the rotation path of the stage 12. When the stage 12 is in the material receiving station, the material sample released by the suction cup 14 can fall on the stage 12. The material taking station is any position in the rotation path of the stage 12 except the material receiving station, which can give way to the suction cup 14 to prevent the stage 12 from interfering with the moving path of the suction cup 14.

[0057] In the above embodiment, an adsorption belt is provided on the suction cup 14, 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 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 excessive adsorption area, 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 an implementation method, a shielding material is provided on the adsorption surface of the suction cup 14, such as a small piece of tape, a plastic sheet, etc., to prevent adsorption of a part of the area, thereby reducing the effective adsorption area. At this time, an adsorption zone is formed on the adsorption surface of the suction cup 14 in the area outside the local shielding. As another implementation method, the surface of the suction cup 14 is etched or grooved so that effective adsorption cannot be formed in some areas. At this time, an adsorption zone is formed on the adsorption surface of the suction cup 14 in the area outside the etching or groove.

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

[0062] By setting the adsorption belt to be long, the contact line between the long adsorption belt and the material sample is longer, which can provide a more uniform adsorption force distribution during the adsorption process. Compared with adsorption belts of other shapes, the long strip can better adapt to material samples of different shapes and sizes, ensuring that the material is not easy to slide or shift during the adsorption process, thereby improving the stability of adsorption. Furthermore, due to the long contact line, even if there is a certain vibration or shaking during the material transportation process, the long adsorption belt can better maintain contact with the material, 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] Wherein, in the case where the sampling portion 1 is a comb-tooth bearing 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-tooth bearing plate 11 is rotatably connected to the second adapter plate 7. Thus, for materials with different stacking angles and shapes, the angle of the comb-tooth bearing plate 11 can be adjusted to better fit the material layer. For example, when the material is tilted in the material conveying trough, the comb-tooth bearing plate 11 can be rotated to make the comb-tooth bearing plate 11 adapt to the tilt angle of the material, thereby more effectively inserting the material layer for sampling, thereby improving the accuracy and representativeness of the sampling.

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

[0066] In the case where the sampling part 1 is composed of the stage 12, the telescopic cylinder 13 and the suction cup 14, the angle between the sampling part 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. In this way, the suction cup 14 can be perpendicular to the material layer, increasing the adsorption area, thereby generating a more uniform adsorption force, making the contact between the suction cup 14 and the material closer, the adsorption force is enhanced, and the adsorption stability is also improved, thereby ensuring that the material is not prone to sliding, shifting or falling during the adsorption 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 joint connection, a joint connection, etc., which is not limited in the present application. For example, the rotational connection between the telescopic cylinder 13 and the second adapter plate 7 adopts a ball joint 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, and the joint connection 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 further includes a position sensor 8, which is relatively fixed to the sampling portion 1 and is used to sense the distance between the sampling portion 1 and the material layer in the material conveying trough. Thus, the sampling device can accurately adjust the position of the sampling portion 1 according to the height and stacking 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 the present 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, and the detection table 21 is located on the same plane as the material sample collected by the sampling unit 1. Therefore, it can be ensured that the material sample will not be deformed or displaced due to the height difference during the process of being transferred to the detection table 21 for measurement, so that the measurement result can accurately reflect the real 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 the sampling part 1, the detection part 2 and the air-jet part 3, thereby improving the detection efficiency and meeting the efficient production requirements of tobacco processing. Specifically, in order to realize the online detection of the width of the tobacco shreds, the material samples can be continuously collected and measured 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 the tobacco shreds, thereby more accurately determining the quality uniformity of the tobacco shreds. At the same time, there is no need to manually select the 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 detection 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 only 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 in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope 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), arranged on the first direction side of the sampling portion (1), and used for measuring the width of the material sample collected by the sampling portion (1); The air jet part (3) is fixed relative to the sampling part (1), and the output end of the air jet part (3) faces a first direction and is used to blow the material sample to the detection part (2).

2. The sampling device according to claim 1, characterized in that: A first linear module (4) is fixedly arranged 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 arranged 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 arranged 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) is in contact with a 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) comprises a loading platform (12), a telescopic cylinder (13) and a suction cup (14); the loading platform (12) is rotatably arranged on a side of a material layer in the material conveying trough away from the bottom of the trough; the rotation path of the loading platform (12) comprises 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 in a direction close to the material layer. When the loading platform (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 in a direction away from the material layer. The suction cup (14) is used to absorb the material sample when the loading platform (12) rotates to the material taking station, and release the material sample when the loading platform (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, and 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 a long 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), wherein the position sensor (8) is fixed relative to the sampling portion (1), and the position sensor (8) is 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 part (2) comprises a detection platform (21), and the detection platform (21) and the material sample collected by the sampling part (1) are located on the same plane.

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