A device and method for centrifugally testing the firmness of tobacco in a cigarette

Abstract

The application provides a device and method for centrifugal detection of tightness of cigarette tobacco of a cigarette, comprising a bottom plate, a fixed outer cover installed above the bottom plate, a high-speed motor arranged in the fixed outer cover, a support connected with the high-speed motor through a transmission mechanism above the high-speed motor, the transmission mechanism supported by a support inner cover installed on the bottom plate, the high-speed motor extended to below the bottom plate at an end away from the support, a rotating arm rotatably connected with an end of the support away from the transmission mechanism, and a distance measuring sensor and a high-speed camera arranged on the inner top surface of the fixed outer cover and close to the support. The application is convenient to control, can adopt different test intensities corresponding to various specifications of samples, detects the falling phenomenon of the end surface of the tobacco through a centrifugal rotation mode, further enriches the cigarette quality detection means oriented by consumer sensory evaluation and preference habits, expands the product quality detection index dimension, and provides scientific detection basis for qualitative discrimination and quantitative analysis of the original appearance and physical indexes of products.

Description

Technical Field

[0001] This invention relates to the field of cigarette testing equipment, and in particular to a device and method for centrifugal testing of the compactness of cigarette tobacco. Background Technology

[0002] In the research and analysis of the entire life cycle of cigarette products, on the one hand, due to smoking habits or sensory needs, consumers often tap the cigarette several times before lighting it, with the filter end facing down and the lit end facing up. This causes the tobacco at the lit end to sink into the cigarette tube to a certain distance. At this time, the density and hardness of the tobacco-containing part of the cigarette, as well as the overall draw resistance and total ventilation rate of the cigarette, will also change. Moreover, in terms of smoking sensation, the depth to which the tobacco sinks into the cigarette tube after tapping by consumers results in differences in the change of smoke concentration per puff during combustion, the dynamic draw resistance of the cigarette, the tendency of the combustion cone to fall, and the ash coating compared to the original cigarette. Therefore, it will affect the judgment of the quality of the branded cigarette to a certain extent. On the other hand, by studying the process of the tobacco segments sinking under different accelerations, we can further reveal the mechanism of the sinking of the lit end, cigarette deformation, or cigarette scattering that may occur during the forming, packaging, transportation, and transfer stages due to excessive instantaneous acceleration (such as tapping, punching, shaking, dropping, and bumping).

[0003] Therefore, in order to quantitatively characterize the product quality stability indicators of cigarettes under the condition of large acceleration generated by external force, and to further improve the product quality evaluation dimensions and testing methods of cigarettes from the perspective of consumers' product consumption habits, we use the method of simulating the tobacco shreds sinking under the action of external force and non-destructive testing to use the tobacco shreds compactness of cigarettes as the evaluation index. Summary of the Invention

[0004] This invention provides a device and method for centrifugal testing of the compactness of tobacco in cigarettes. It utilizes centrifugal force applied to a cigarette of a specific specification with a fixed rotation radius at high speed to simulate the impact on the tobacco end when the cigarette is tapped against the filter tip. Image data is obtained by monitoring the changes in the cigarette's appearance under different axial acceleration gradients during the testing process. Combined with statistical data on the falling distance of the tobacco end face obtained from multiple tests, this reveals the performance indicators of cigarette compactness under external force. By studying the process of the cigarette end sinking under different accelerations, the invention further reveals the mechanism of product quality problems that may occur in the production process, such as molding, packaging, and transportation, due to excessive instantaneous acceleration (tapping, tapping, throwing, dropping, etc.). This further improves the level of cigarette product testing and process quality control, enriches the technical means for refined testing in cigarette manufacturing, and provides fundamental support for the informatization development of cigarette manufacturing and the enrichment of product testing dimensions.

[0005] This invention provides a device for centrifugally detecting the compactness of tobacco shreds in cigarettes, comprising a base plate, a fixed outer cover mounted on the base plate, a high-speed motor disposed inside the fixed outer cover, the high-speed motor being connected to a support via a transmission mechanism, a supporting inner cover sleeved around the transmission mechanism, the bottom surface of the supporting inner cover being fixed to the upper surface of the base plate, one end of the high-speed motor away from the support extending to the bottom of the base plate, a rotating arm being rotatably connected to the end of the support away from the transmission mechanism, and a distance measuring sensor and a high-speed camera disposed on the top surface inside the fixed outer cover near the support.

[0006] Furthermore, the high-speed motor is fixed to the bottom surface of the base plate via a connecting block.

[0007] Furthermore, the transmission mechanism includes a transmission shaft connected to the high-speed motor, and the transmission shaft is connected to the output shaft of the high-speed motor via a coupling.

[0008] Furthermore, the end of the drive shaft away from the coupling is connected to the bracket via a fastening knob.

[0009] Furthermore, a bearing flange sleeved on the transmission shaft is installed between the bracket and the coupling, and the inner support cover is fixed to the bottom surface of the bearing flange.

[0010] Furthermore, the bracket is X-shaped, and a pivot mounting groove is provided at the end of the bracket away from the fastening knob.

[0011] Furthermore, a rotating shaft is fixed at a position near the rotating shaft mounting groove on the rotating arm, a placement cavity is opened inside the rotating arm, an observation window communicating with the placement cavity is opened on the side wall of the rotating arm, a filter holder is provided at a position away from the rotating shaft in the placement cavity, and a valve is installed at a position away from the rotating shaft on the rotating arm.

[0012] Furthermore, the fixed outer cover has a placement opening, and a movable outer cover that is hinged to the fixed outer cover is provided on the placement opening.

[0013] Furthermore, the movable outer cover is provided with a handle, and the lower surface of the base plate is fixed with feet.

[0014] This invention also provides a method for centrifugation to detect the compactness of tobacco shreds in cigarettes, the specific steps of which are as follows: S1, Preparation of the cigarette sample to be tested: Take the finished cigarette sample and equilibrate it at a temperature of 22±2℃ and a relative humidity of 60±5% for no less than 48 hours. Select 20 cigarettes by screening them through the cigarette comprehensive testing platform so that the average weight of each cigarette is ±20mg per 100 cigarettes tested. S2, Positioning and clamping of the cigarette to be tested: The filter end of the cigarette to be tested is fully inserted into the filter holder, and the filter is flexibly clamped by using a special constant flow air pump and its air valve to inflate the valve. S3, Preparatory work before testing: Make the swing arm in a natural vertical state, and make the center of the bottom of the swing arm shaft aligned with the zero point of the phase count of the high-speed motor marked on the base plate; S4, Testing: Start the high-speed motor, rotating arm, and support. First, rotate slowly and intermittently 180° twice, so that each cigarette to be tested is detected twice by two laser distance sensors. Then, the average value of the height of the tobacco end face of each cigarette is recorded as the value before the test. Then, the high-speed motor starts to accelerate at the rated speed. The high-speed camera continuously takes pictures and records the macroscopic deformation of the cigarette during the test through the rectangular observation window of the rotating arm according to the set photo time interval. The test timeline and the speed of the high-speed motor correspond one-to-one with the photos taken. S5, Post-detection operation: After the set rotation time ends, the high-speed motor gradually decelerates until the rotating arm is in a natural vertical state and then stops. The high-speed motor rotates the rotating arm and bracket back to the initial phase zero point according to the phase counter and control command, and then slowly and intermittently rotates 180° twice, so that each cigarette is detected twice by the two laser distance sensors. The average value of the height of the tobacco end face of each cigarette is recorded as the post-test value. S6, Record the cigarette test results before and after the test: Calculate the cigarette compactness value for each cigarette based on the height of the tobacco end face before and after the test, as well as the corresponding image data during the test.

[0015] This invention allows for controllable rotation time and speed, enabling different testing intensities for various sample specifications. It detects the falling phenomenon of tobacco ends through centrifugal rotation, further enriching the cigarette quality testing methods guided by consumer sensory evaluation and preferences. It expands the dimensions of product quality testing indicators and provides a scientific testing basis for qualitative and quantitative analysis of maintaining the original shape and physical indicators of products. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the centrifuge device of the present invention; Figure 3This is a schematic diagram of the rotating arm structure of the present invention; Explanation of reference numerals in the attached figures: In the diagram: 01-Base plate, 02-Foot, 03-Inner support cover, 04-Fixed outer cover, 05-Movable outer cover, 06-High-speed camera, 07-First laser distance sensor, 08-Second laser distance sensor, 11-High-speed motor, 12-Connecting block, 13-Coupling, 14-Drive shaft, 15-Bearing flange, 16-Fastening knob, 17-Bracket, 18-Rotating arm, 21-Valve, 22-Filter holder, 23-Cigarette, 24-Rotating shaft; Detailed Implementation The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0019] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] Example 1 like Figure 1 , Figure 2 and Figure 3 As shown: A device for centrifugally detecting the tobacco tightness of a cigarette 23 includes a base plate 01, a fixed outer cover 04 mounted on the base plate 01, a placement opening on the fixed outer cover 04, and a movable outer cover 05 hinged to the fixed outer cover 04 on the placement opening. The movable outer cover 05 is provided with a door handle for opening and closing the instrument for internal operation. The fixed outer cover 04 and the movable outer cover 05 together form a cylindrical overall structure cover. The lower surface of the base plate 01 is fixed with feet 02 that provide structural support for the whole machine.

[0021] like Figure 1 and Figure 2 As shown, a centrifugal device is provided inside the fixed outer cover 04. The centrifugal device includes a high-speed motor 11. The upper part of the high-speed motor 11 is located inside the fixed outer cover 04, and the lower part of the high-speed motor 11 extends through the central hole of the base plate 01 to its lower part. The high-speed motor 11 located below the base plate 01 is fixedly connected to the lower surface of the base plate 01 through the connecting block 12.

[0022] A high-speed camera 06, a first laser distance sensor 07, and a second laser distance sensor 08 are installed inside the top surface of the fixed outer cover 04. The high-speed camera 06 is located at the far center of the top surface inside the fixed outer cover 04. The high-speed camera 06 is required to be able to completely capture the cigarette 23 inside the rectangular observation window of the rotating arm 18 when the rotating arm 18 is in a horizontal state due to high-speed rotation, and to clearly capture the situation of the cigarette 23. The first laser distance sensor 07 and the second laser distance sensor 08 are located near the center of the top surface inside the fixed outer cover 04 and are installed symmetrically from left to right. They are required to be able to accurately center the tobacco end face of the cigarette 23 being tested when the rotating arm 18 is in a vertical state during the detection process.

[0023] like Figure 2 As shown, the high-speed motor 11 is connected to the bracket 17 via a transmission mechanism. The transmission mechanism includes a transmission shaft 14 connected to the high-speed motor 11. The transmission shaft 14 has a stepped shaft structure, and the long shaft end of the transmission shaft 14 is connected to the output shaft of the high-speed motor 11 via a coupling 13.

[0024] The short shaft end of the drive shaft 14 is connected to the bracket 17 via the fastening knob 16, and the bracket 17 is rotatably connected to the drive shaft 14.

[0025] A bearing flange 15 is installed between the bracket 17 and the coupling 13, and is fitted onto the drive shaft 14. The inner ring of the bearing flange 15 is fixedly connected to the outer wall of the drive shaft 14.

[0026] like Figure 1As shown, a support inner cover 03 is installed on the lower surface of the bearing flange 15, covering the coupling 13 and the high-speed motor 11. The support inner cover 03 has a frustum structure. The small opening of the support inner cover 03 is connected to the bottom surface of the bearing flange 15, and the large opening of the support inner cover 03 is fixed on the upper surface of the base plate 01. The support inner cover 03 is coaxially arranged with the drive shaft 14, the coupling 13 and the bearing flange 15.

[0027] like Figure 1 and Figure 2 As shown, the bracket 17 is X-shaped, with mounting slots for the rotating shaft 24 at both ends, and rotating arms 18 are rotatably connected to it in a symmetrical manner on both sides.

[0028] The rotating arm 18 can be removed before and after inspection by the mounting slots of the rotating shaft 24 at both ends of the bracket 17, and ensures safe positioning and free swing when the rotating arm 18 rotates at high speed; the rotating arm 18 can rotate within a range of -5° to 95° with the mounting slot of the rotating shaft 24 of the bracket 17 as the rotation center (with the natural verticality of the rotating arm 18 as 0°, rotation towards the direction closer to the drive shaft 14 is a negative angle rotation, and rotation away from the drive shaft 14 is a positive angle rotation).

[0029] When stationary, the rotating arm 18 is vertical and perpendicular to the support 17. When rotating at high speed, the rotating arm 18 is at a certain angle to the support 17.

[0030] One end of the rotating arm 18 near the shaft mounting groove is the rotating end, and the other end is the free end. The rotating shaft 24 is fixed on the outer wall of the rotating end of the rotating arm 18. The filter holder 22 is installed on the free end of the rotating arm 18. The filter holder 22 achieves flexible positioning and clamping of the filter of the cigarette 23 by inflating or deflating the valve 21. The filter holder 22 determines the rotation radius of the cigarette 23 during the process of being subjected to centrifugal force by the positioning screw on the rotating arm 18. A rectangular observation window is opened on the outer wall of the rotating arm 18, which can be used to observe the macroscopic deformation of the cigarette 23 during the detection process and as a viewing window for high-speed camera 06. The lit end of the tobacco of the cigarette 23 is oriented towards the center point of the centrifugal rotation of the whole machine.

[0031] The specific steps for detecting the tobacco compactness of cigarette 23 using the device of the present invention are as follows: S1. Preparation of sample 23 of the cigarettes to be tested; Finished cigarette samples (23) were equilibrated for at least 48 hours at a temperature of 22±2℃ and a relative humidity of 60±5%. Cigarette samples (23) were then screened using a comprehensive testing platform, ensuring that the average weight of each cigarette (23) was ±20mg per 100 samples. For each cigarette (23), a set starting rotation angle was established. The requirement was that when both rotating arms (18) were in the ready-to-start vertical position, the light source point of the laser distance sensor could accurately align with the tobacco end face of the tested cigarette (23). After testing, the phase counting and control functions of the high-speed motor (11) ensured that the tobacco end face of the tested cigarette (23) still corresponded to the previous laser distance sensor light source point, marking the rotation detection point and the initial phase angle marked by the high-speed motor (11).

[0032] S2, Positioning and clamping of the cigarette stick to be inspected 23; The filter tip of the cigarette 23 to be tested is fully inserted into the filter holder 22. A dedicated constant flow air pump and its nozzle are used to inflate the valve 21 to achieve flexible clamping of the filter tip. Then, the distance between the filter holder 22 and the rotating shaft 24 is adjusted, and the filter holder 22 is tightened with the positioning screw on the rotating arm 18 to determine the radius of rotation from the center of gravity of the cigarette 23 to the origin of rotation.

[0033] S3. Preparations for testing sample 23 of cigarettes to be tested; The rotating arm 18 is in a natural vertical state, so that the center of the bottom of the rotating arm 18 shaft is aligned with the zero point of the phase count of the high-speed motor 11 calibrated on the base plate 01. The movable cover 05 is closed. The light source point is checked to see if it is aligned with the detection end of the cigarette 23 according to the real-time detection height of the tobacco end face of the first laser distance sensor 07 and the second laser distance sensor 08. The phase reading of the high-speed motor 11 is checked again as the starting zero point.

[0034] S4. Perform the test; The high-speed motor 11, rotating arm 18 and bracket 17 are started and slowly rotated 180° twice intermittently, so that each cigarette 23 to be tested is detected twice by two laser distance sensors. Then, the average value of the height of the tobacco end face of each cigarette 23 is recorded as the value before the test.

[0035] Then the high-speed motor 11 starts to accelerate at its rated speed. The high-speed camera 06 continuously takes pictures and records the macroscopic deformation of the cigarette 23 during the test through the rectangular observation window of the rotating arm 18 according to the set photo time interval. The test timeline and the speed of the high-speed motor 11 correspond one-to-one with the photos taken. At this time, the first laser distance sensor 07 and the second laser distance sensor 08 are in the paused working stage.

[0036] S5. Post-testing work for sample 23 cigarette sticks; After the set rotation time ends, the high-speed motor 11 gradually decelerates until the rotating arm 18 is in a natural vertical position and then stops. At this moment, the high-speed camera 06 is turned off, and the first laser distance sensor 07 and the second laser distance sensor 08 are in the working state. The high-speed motor 11 is turned on, and according to the phase counter and control command, the high-speed motor 11 rotates the rotating arm 18 and the bracket 17 back to the initial phase zero point, and then slowly and intermittently rotates 180° twice, so that each cigarette 23 is detected twice by each of the two laser distance sensors. The average value of the height of the tobacco end face of each cigarette 23 is recorded as the value after the test.

[0037] S6. Record the test results of 23 cigarettes before and after the test; For each cigarette 23, the compactness value of the cigarette 23 is calculated based on the height of the tobacco end face before and after the test, along with the corresponding image data during the test. After the batch test is completed, the movable outer cover 05 is opened, the rotating arm 18 is removed, and a dedicated constant flow air pump and its nozzle are used to release air from the valve 21 to achieve a flexible release of the filter. The cigarette 23 is then removed, and the rotating arm 18 and the entire machine compartment are cleaned. The above steps are repeated to test all the tested cigarettes 23.

[0038] This invention utilizes centrifugal force applied to cigarettes of a fixed specification with a fixed rotation radius at high-speed centrifugal rotation to simulate the impact on the tobacco end when a cigarette is tapped against the filter tip. By obtaining image data of the cigarette's appearance changes under different axial acceleration gradients during the testing process, and combining this with statistical data on the falling distance of the tobacco end face obtained from multiple tests, the invention reveals the performance indicators of cigarette compactness under external force. By studying the process of cigarette end sinking under different accelerations, the invention further reveals the mechanism of product quality problems that may occur in the production process, such as molding, packaging, and transportation, due to excessive instantaneous acceleration (tapping, tapping, throwing, dropping, etc.). This further improves the level of cigarette product testing and process quality control, enriches the technical means for refined testing in cigarette manufacturing, and provides basic support for the informatization development and big data technology of cigarette processing.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for centrifugal testing of the compactness of tobacco shreds in cigarettes, characterized in that: The device includes a base plate, a fixed outer cover mounted on top of the base plate, a high-speed motor housed inside the fixed outer cover, a transmission mechanism connected to a bracket above the high-speed motor, a supporting inner cover sleeved around the transmission mechanism, the bottom surface of the supporting inner cover fixed to the upper surface of the base plate, an end of the high-speed motor away from the bracket extending below the base plate, a rotating arm rotatably connected to the end of the bracket away from the transmission mechanism, the transmission mechanism including a drive shaft connected to the high-speed motor, the drive shaft connected to the output shaft of the high-speed motor via a coupling, an end of the drive shaft away from the coupling connected to the bracket via a fastening knob, a rotating shaft mounting groove provided at the end of the bracket away from the fastening knob, a rotating shaft fixed at a position near the rotating shaft mounting groove, a placement cavity provided inside the rotating arm, a rectangular observation window communicating with the placement cavity provided on the side wall of the rotating arm, a filter holder provided at a position in the placement cavity away from the rotating shaft, and a valve installed at a position in the rotating arm away from the rotating shaft. A high-speed camera, a first laser distance sensor, and a second laser distance sensor are installed inside the top surface of the fixed outer cover. The high-speed camera is located at the far center of the top surface inside the fixed outer cover. When the rotating arm is in a horizontal state due to high-speed rotation, the high-speed camera lens can be directly facing and completely capturing the cigarette inside the rectangular observation window of the rotating arm. The first laser distance sensor and the second laser distance sensor are located near the center of the top surface inside the fixed outer cover and are installed symmetrically on the left and right sides. It is required that when the rotating arm is in a vertical state during the detection process, it can accurately center on the end face of the tobacco shreds of the cigarette being tested. The lit end of the cigarette is oriented towards the center of the centrifugal rotation of the entire machine.

2. The device for centrifugal detection of the compactness of cigarette tobacco as described in claim 1, characterized in that: The high-speed motor is fixed to the bottom surface of the base plate by a connecting block.

3. The device for centrifugal detection of the compactness of cigarette tobacco as described in claim 1, characterized in that: A bearing flange fitted onto the transmission shaft is installed between the bracket and the coupling, and the inner support cover is fixed to the bottom surface of the bearing flange.

4. The device for centrifugal detection of the compactness of tobacco shreds in cigarettes according to claim 1, characterized in that: The bracket is X-shaped.

5. The device for centrifugal detection of the compactness of tobacco shreds in cigarettes according to claim 1, characterized in that: The fixed outer cover has a placement opening, and a movable outer cover is provided on the placement opening and is hinged to the fixed outer cover.

6. The device for centrifugal detection of the compactness of tobacco shreds in cigarettes according to claim 5, characterized in that: The movable outer cover is equipped with a handle, and the bottom plate is fixed with feet on its lower surface.

7. A method for centrifugation to detect the compactness of tobacco shreds in cigarettes, characterized in that, The device for centrifugally detecting the compactness of tobacco shreds in cigarettes, based on any one of claims 1-6, comprises the following steps: S1, Preparation of the cigarette sample to be tested: Take the finished cigarette sample and equilibrate it at a temperature of 22±2℃ and a relative humidity of 60±5% for no less than 48 hours. Select 20 cigarettes by screening them through the cigarette comprehensive testing platform so that the average weight of each cigarette is ±20mg per 100 cigarettes tested. S2, Positioning and clamping of the cigarette to be tested: The filter end of the cigarette to be tested is fully inserted into the filter holder, and the filter is flexibly clamped by using a special constant flow air pump and its air valve to inflate the valve. S3, Preparatory work before testing: Make the swing arm in a natural vertical state, and make the center of the bottom of the swing arm shaft aligned with the zero point of the phase count of the high-speed motor marked on the base plate; S4, Testing: Start the high-speed motor, rotating arm, and support. First, rotate slowly and intermittently 180° twice, so that each cigarette to be tested is detected twice by two laser distance sensors. Then, the average value of the height of the tobacco end face of each cigarette is recorded as the value before the test. Then, the high-speed motor starts to accelerate at the rated speed. The high-speed camera continuously takes pictures and records the macroscopic deformation of the cigarette during the test through the rectangular observation window of the rotating arm according to the set photo time interval. The test timeline and the speed of the high-speed motor correspond one-to-one with the photos taken. S5, Post-detection operation: After the set rotation time ends, the high-speed motor gradually decelerates until the rotating arm is in a natural vertical state and then stops. The high-speed motor rotates the rotating arm and bracket back to the initial phase zero point according to the phase counter and control command, and then slowly and intermittently rotates 180° twice, so that each cigarette is detected twice by the two laser distance sensors. The average value of the height of the tobacco end face of each cigarette is recorded as the post-test value. S6, Record the cigarette test results before and after the test: Calculate the cigarette compactness value for each cigarette based on the height of the tobacco end face before and after the test, as well as the corresponding image data during the test.

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