Tobacco dust measuring device

By designing an automatic screen belt replacement and tobacco dust collection device, the problem of residual tobacco dust on the screen affecting detection accuracy was solved, achieving higher detection accuracy and efficiency.

CN224456474UActive Publication Date: 2026-07-03HONGYUN HONGHE TOBACCO (GRP) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HONGYUN HONGHE TOBACCO (GRP) CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing cigarette dust testing instruments leave behind tobacco dust from the previous test on the screen after each vibration screening, leading to a decrease in the accuracy of the test results.

Method used

A tobacco dust measuring device was designed, including a detection chamber, a screening mechanism, and a collection frame. The screen belt is automatically replaced by a vibration component and a winding roller to avoid the residual tobacco dust from the previous test affecting the next result. The tobacco shreds are automatically collected by the collection frame to improve the detection accuracy.

Benefits of technology

It effectively improves the detection accuracy and working efficiency of the tobacco dust measuring device, avoids the influence of residual tobacco dust from the previous test on the next result, and simplifies the operation process.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the technical field of cigarette testing devices, and discloses a cigarette dust measuring device, including a testing chamber, a screening mechanism, and a collection frame. The testing chamber has a testing cavity, in which a first electronic scale is installed, and the first electronic scale is connected to a cigarette dust box. The screening mechanism is located above the cigarette dust box and includes two side plates, two sweeping plates, a screen belt, and a vibration component. The two side plates and two sweeping plates form a tobacco channel. Winding rollers are connected to the opposite sides of the two side plates. The screen belt is wound around the two winding rollers and covers the bottom opening of the tobacco channel. The vibration component is connected to the two side plates to drive the tobacco channel and the screen belt to vibrate. The collection frame is located behind the screen belt. By setting up the winding rollers and the collection frame, the winding rollers wind up the screen belt with tobacco dust adhering to it and replace it with a new screen belt, and the collection frame collects the tobacco, thereby improving the detection accuracy and working efficiency.
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Description

Technical Field

[0001] This utility model relates to the technical field of cigarette detection devices, and in particular to a cigarette dust measuring device. Background Technology

[0002] During cigarette production, it is necessary to test the dust content of the cigarettes. Current technology uses a cigarette testing dust analyzer to test the dust content of the tobacco shreds. First, the weight of the tobacco shreds is weighed. Then, the tobacco shreds are evenly spread on the screen of the analyzer, vibrated a certain number of times, and then the vibration is stopped. The dust sifted out below the screen is collected and weighed using a balance. The dust content of the cigarette is then calculated using a formula. However, with existing cigarette testing dust analyzers, after each vibration and sifting of the tobacco dust, the screen belt retains some dust left from the previous test. During the next vibration test, this dust may fall off, increasing the weight of the tobacco dust and affecting the accuracy of the test results. Utility Model Content

[0003] The purpose of this invention is to provide a tobacco dust measuring device that can automatically collect tobacco shreds and replace the screen belt, thereby improving the detection accuracy.

[0004] To achieve this objective, the present invention adopts the following technical solution: a tobacco dust measuring device, comprising a detection chamber, a screening mechanism, and a collection frame. The detection chamber has an openable and closable detection cavity, in which a first electronic scale is installed, and a tobacco dust box is connected to the top of the first electronic scale. The screening mechanism is located above the tobacco dust box and includes two side plates, two sweeping plates, a screen belt, and a vibration assembly. The two side plates are arranged opposite each other along the length of the tobacco dust box and are elastically connected to the inner wall of the detection chamber. The two sweeping plates are arranged opposite each other along the width of the tobacco dust box and are connected to each other by a connecting rod, and are located on the front side. The sweeping plate is slidably connected to one of the side plates along the width direction of the tobacco box. The two side plates and the two sweeping plates surround and form a tobacco channel with openings at both ends. Motor-driven winding rollers are connected to the opposite sides of the two side plates. The screen belt is wound around the two winding rollers and covers the bottom opening of the tobacco channel. The vibration component is connected to the two side plates to drive the tobacco channel and the screen belt to vibrate. The collection frame is located behind the screen belt in the width direction of the tobacco box and can fit against the screen belt. The top surface of the collection frame is flush with the bottom surface of the tobacco channel.

[0005] Preferably, both sides of the side plate are connected to detachable support plates. In the width direction of the cigarette box, a first motor is installed on the support plate located on the front side, and the output shaft of the first motor is connected to the rotating shaft of the corresponding winding roller.

[0006] Preferably, the bottom of the side plate is provided with a guide block, which protrudes outward along the length of the cigarette box, and the end of the guide block away from the side plate is provided with a rounded corner, which abuts against the screen belt.

[0007] Preferably, the screening mechanism further includes a frame, which is connected to the two side plates via connectors and abuts against the side of the screen belt facing the cigarette box. The outer peripheral wall of the frame is provided with a protective cloth, which is arranged around the cigarette box and fits against the outer peripheral wall of the cigarette box.

[0008] Preferably, the detection chamber is provided with a telescopic rod, which is connected to the collection frame.

[0009] Preferably, the bottom of the cigarette box is symmetrically provided with two positioning posts, the top surface of the first electronic scale is provided with two positioning slots, the positioning posts are correspondingly inserted into the positioning slots, and there is a gap between the cigarette box and the frame for the cigarette box to move.

[0010] Preferably, brackets are connected to both opposite sides of the two side plates, and two connecting plates corresponding to the positions of the brackets are provided inside the detection cavity. The connecting plates and the brackets are connected by springs.

[0011] Preferably, the vibration assembly includes two rotating rods and two cams, with the rotating rods, cams and brackets arranged in a one-to-one correspondence. The two rotating rods are symmetrically arranged along the length of the cigarette box, and the rear ends of the two rotating rods are connected by a synchronous belt pulley structure. The front end of the rotating rod is connected to the corresponding cam, and the cam abuts against the side of the corresponding bracket away from the spring.

[0012] Preferably, the tobacco dust measuring device further includes a second electronic scale, which is located on one side of the testing chamber, and a tobacco box is connected to the top of the second electronic scale.

[0013] Preferably, the tobacco dust measuring device further includes a control console, which is located on the side of the detection chamber away from the second electronic scale, and the control console is communicatively connected to the vibration component, the first electronic scale, and the second electronic scale.

[0014] The beneficial effects of this invention are as follows: When using the tobacco dust measuring device, the user can open the detection chamber and put the weighed tobacco into the tobacco channel. At this time, the tobacco falls onto the screen belt. Then, the detection chamber is closed and the vibration component is activated. The vibration component controls the vibration of the tobacco channel and the screen belt. After the tobacco channel and screen belt vibrate for a certain period of time, the tobacco dust in the tobacco is vibrated and screened out into the tobacco dust box below. The first electronic scale weighs the tobacco dust. After weighing, two sweeping plates move backward, sweeping the tobacco into the collection frame. At the same time, two winding rollers rotate synchronously, winding up the screen belt with tobacco dust adhering to it, and simultaneously transmitting a new screen belt to the bottom of the tobacco channel. The user can then open the detection chamber again to recover the tobacco and tobacco dust. By setting up the winding rollers and collection frame, the winding rollers can wind up the screen belt with tobacco dust adhering to it and replace it with a new screen belt, avoiding the influence of residual tobacco dust from the previous detection process on the next tobacco dust detection result, effectively improving the detection accuracy of the tobacco dust measuring device. The collection frame and the sweeping plate work together to automatically collect tobacco shreds, making it convenient for users to process them later and effectively improving the working efficiency of the tobacco dust measuring device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the tobacco dust measuring device according to an embodiment of the present invention;

[0016] Figure 2 This is a side cross-sectional view of the tobacco dust measuring device according to an embodiment of the present invention;

[0017] Figure 3 This is a side cross-sectional view of the testing chamber according to an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the arrangement of the screening mechanism and the collection frame according to an embodiment of the present utility model;

[0019] Figure 5 This is an exploded view of the screening mechanism according to an embodiment of the present invention;

[0020] Figure 6 This is an exploded view of the screening mechanism of this utility model embodiment from another angle;

[0021] Figure 7 yes Figure 3 Enlarged view of point A in the middle;

[0022] Figure 8 This is a schematic diagram of the tobacco dust measuring device from another angle according to an embodiment of the present invention.

[0023] In the picture:

[0024] 100. Testing chamber; 110. Testing cavity; 111. Telescopic rod; 112. Connecting plate; 120. First electronic scale; 121. Positioning groove; 130. Tobacco powder box; 131. Positioning column; 140. Flip cover;

[0025] 200. Screening mechanism; 210. Side plate; 211. Support plate; 212. First motor; 213. Guide block; 214. Bracket; 215. Spring; 216. Lead screw; 220. Sweeping plate; 221. Connecting rod; 230. Screen belt; 240. Vibration assembly; 241. Rotating rod; 242. Cam; 243. Synchronous belt; 244. Second motor; 250. Tobacco channel; 260. Winding roller; 270. Frame; 271. Protective cloth; 272. Connector;

[0026] 300. Collection box;

[0027] 400. Second electronic scale; 410. Tobacco box;

[0028] 500, Console. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0030] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0033] Reference Figures 1 to 4 As shown, a tobacco dust measuring device according to an embodiment of this application includes a detection chamber 100, a screening mechanism 200, and a collection frame 300. The detection chamber 100 has an openable and closable detection cavity 110. A first electronic scale 120 is installed inside the detection cavity 110, and a tobacco dust box 130 is connected to the top of the first electronic scale 120. The tobacco dust box 130 is rectangular in shape. In this embodiment, the length direction of the tobacco dust box 130 is the left-right direction of the tobacco dust measuring device, and the width direction of the tobacco dust box 130 is the front-back direction of the tobacco dust measuring device. This will be reiterated and will not be repeated hereafter. The top of the detection cavity 110 is open, and the top of the detection chamber 100 is provided with a rotatable flip cover 140. The flip cover 140 is used to close the opening of the detection cavity 110, and a handle is provided on the top surface of the flip cover 140.

[0034] The screening mechanism 200 is located inside the detection chamber 110, above the tobacco box 130. The screening mechanism 200 includes two side plates 210, two sweeping plates 220, a screen belt 230, and a vibration assembly 240. The two side plates 210 are arranged opposite each other along the length of the tobacco box 130 and are elastically connected to the inner wall of the detection chamber 100. The two sweeping plates 220 are arranged opposite each other along the width of the tobacco box 130 and are connected to each other by a connecting rod 221. The sweeping plate 220 located on the front side is slidably connected to one of the side plates 210 along the width of the tobacco box 130.

[0035] Specifically, the connection between the sweeper plate 220 and the side plate 210 includes the following four forms:

[0036] The first type: The top of the left side plate 210 is equipped with a motor-driven lead screw 216 structure, and the front sweeping plate 220 is equipped with a nut that cooperates with the lead screw 216 structure.

[0037] The second type: The top of the right side plate 210 is equipped with a motor-driven lead screw 216 structure, and the front sweeping plate 220 is equipped with a nut that cooperates with the lead screw 216 structure.

[0038] The third type: The top of the left side plate 210 is equipped with a slide rail structure, and the front sweeping plate 220 is equipped with a slider that cooperates with the slide rail structure. The slider is connected to a linear telescopic mechanism such as a cylinder.

[0039] The fourth type: The top of the right side plate 210 is equipped with a slide rail structure, and the front sweeping plate 220 is equipped with a slider that cooperates with the slide rail structure. The slider is connected to a linear telescopic mechanism such as a cylinder.

[0040] In this embodiment, the first method is used, in which the left side plate 210 is connected to the front sweeping plate 220 via a screw 216 structure and a nut. This will not be described in detail here.

[0041] Two side plates 210 and two sweeping plates 220 surround a tobacco channel 250 with openings at both the top and bottom. The projection of the tobacco channel 250 onto the horizontal plane lies within the projection of the tobacco box 130 onto the horizontal plane. Motor-driven winding rollers 260 are connected to the opposite sides of the two side plates 210. A screen belt 230 is wound around the two winding rollers 260 and covers the bottom opening of the tobacco channel 250. In this embodiment, the left winding roller 260 is defined as the unwinding roller, and the right winding roller 260 as the take-up roller. The screen belt 230 moves from left to right between the two winding rollers 260. A vibration assembly 240 is connected to the two side plates 210 to drive the tobacco channel 250 and the screen belt 230 to vibrate. A collection frame 300 is located behind the screen belt 230 in the width direction of the tobacco box 130 and can fit against the screen belt 230. The top surface of the collection frame 300 is flush with the bottom surface of the tobacco channel 250.

[0042] Understandably, when using the tobacco dust measuring device, the user can rotate the flip cover 140 to open the detection chamber 110 and put the weighed tobacco into the tobacco channel 250. At this time, the tobacco falls onto the screen belt 230. Then, the detection chamber 110 is closed and the vibration component 240 is activated. The vibration component 240 controls the vibration of the tobacco channel 250 and the screen belt 230. After the tobacco channel 250 and the screen belt 230 vibrate for a certain period of time, the tobacco dust in the tobacco is vibrated and screened out into the tobacco dust box 130 below. The first electronic scale 120 weighs the tobacco dust. After the weighing is completed, the two sweeping plates 220 move backward to sweep the tobacco into the collection frame 300. At the same time, the two winding rollers 260 rotate synchronously to wind up the screen belt 230 with tobacco dust adhering to it, and at the same time, a new screen belt 230 is transferred to the bottom of the tobacco channel 250. The user can then open the detection chamber 110 again to recover the tobacco and tobacco dust.

[0043] By incorporating a winding roller 260 and a collection frame 300, the winding roller 260 can wind up the screen belt 230 with adhering tobacco dust and replace it with a new one, preventing residual tobacco dust from the previous testing process from affecting the results of the next tobacco dust test, thus effectively improving the detection accuracy of the tobacco dust measuring device. The collection frame 300, in conjunction with the sweeping plate 220, can automatically recover tobacco shreds, facilitating subsequent processing by the user and effectively improving the working efficiency of the tobacco dust measuring device.

[0044] Reference Figure 5As shown, it can be understood that the side plate 210 is connected to support plates 211 on both sides of the cigarette box 130 in the width direction. The support plates 211 are detachably connected to the side plate 210 by means of screws, snaps, pins, etc. In the width direction of the cigarette box 130, a first motor 212 is installed on the support plate 211 located on the front side. The output shaft of the first motor 212 is connected to the rotating shaft of the corresponding winding roller 260.

[0045] By setting a detachable support plate 211, when the screen belt 230 has little remaining capacity, the user can remove the support plates 211 on the front and rear sides, remove the first motor 212, and replace the screen belt 230 at the same time, thus improving the ease of installation and removal of the screen belt 230.

[0046] Reference Figure 5 and Figure 6 As shown, it can be understood that the bottom of the side plate 210 is provided with a guide block 213. The guide block 213 protrudes outward along the length of the cigarette box 130. The end of the guide block 213 away from the side plate 210 is provided with a rounded corner, which abuts against the screen belt 230.

[0047] By setting guide blocks 213, on the one hand, the guide blocks 213 contact the screen belt 230 through rounded corners, which can prevent the edge lines of the side from cutting or scratching the screen belt 230 and extend the service life of the screen belt 230; on the other hand, the guide blocks 213 on both sides can spread out and flatten the screen belt 230, keep the screen belt 230 flat, and improve the working stability of the screen belt 230.

[0048] Furthermore, the screening mechanism 200 also includes a frame 270, which is rectangular in shape to match the tobacco channel 250. The frame 270 is connected to two side plates 210 by a vertically upward connector 272 and abuts against the side of the screen belt 230 facing the tobacco box 130. The outer peripheral wall of the frame 270 is provided with a protective cloth 271, which is arranged around the tobacco box 130 and fits against the outer peripheral wall of the tobacco box 130.

[0049] By setting up a protective cloth 271, which surrounds the tobacco box 130 and fits against the outer peripheral wall of the tobacco box 130, the protective cloth 271 can limit the tobacco that passes through the screen belt 230 and the frame 270 when the screen belt 230 vibrates and the tobacco falls, thus preventing the tobacco from splashing and leaking out, and further improving the detection accuracy of the tobacco measuring device.

[0050] Reference Figure 4 As shown, it can be understood that a telescopic rod 111 is provided inside the detection chamber 110, and the telescopic rod 111 is connected to the collection frame 300. Optionally, multiple telescopic rods 111 are provided, and the multiple telescopic rods 111 are spaced apart along the length direction of the tobacco box 130.

[0051] By setting the telescopic rod 111, when the vibration component 240 is working, the telescopic rod 111 drives the collection frame 300 to extend forward and fit against the rear side wall of the screen belt 230. When the vibration component 240 is working, the telescopic rod 111 drives the collection frame 300 to retract backward, so as to avoid interference between the collection frame 300 and the vibrating frame 270 and the screen belt 230, which would affect the installation stability of the collection frame 300 and the working stability of the vibration component 240, and effectively improve the structural rationality of the collection frame 300.

[0052] Continue to refer to Figure 5 and Figure 6 As shown, it can be understood that the bottom of the cigarette box 130 is symmetrically provided with two positioning posts 131, and the top surface of the first electronic scale 120 is provided with two positioning grooves 121. The positioning posts 131 are correspondingly inserted into the positioning grooves 121, and there is a gap between the cigarette box 130 and the frame 270 for the cigarette box 130 to move. That is, the vertical distance between the top surface of the cigarette box 130 and the bottom surface of the frame 270 is greater than the vertical height of the positioning posts 131.

[0053] After the tobacco dust detection is completed, the user can open the detection chamber 110, lift the protective part and pull out the tobacco dust box 130, and then move the tobacco dust box 130 forward along its width to collect the tobacco dust in the tobacco dust box 130. By setting the positioning post 131, the installation of the tobacco dust box 130 is ensured to be stable, while also making it easy for the user to remove the tobacco dust box 130, thus improving the ease of installation and removal of the tobacco dust box 130.

[0054] Reference Figure 7 As shown, it can be understood that the two side plates 210 are connected to the opposite sides of each other with brackets 214. The brackets 214 extend outward from the side plates 210 along the length of the cigarette box 130. The detection cavity 110 is provided with two connecting plates 112 corresponding to the positions of the brackets 214. The connecting plates 112 and the brackets 214 are connected by springs 215.

[0055] By setting up a bracket 214, a spring 215 and a connecting plate 112, with the two ends of the spring 215 fixedly connected to the bracket 214 and the connecting plate 112 respectively, the connection structure between the side plate 210 and the inner wall of the detection chamber 110 is simplified while ensuring the floating of the side plate 210, thereby reducing the installation and layout cost of the screening mechanism 200.

[0056] Reference Figure 5 and Figure 7As shown, the vibration assembly 240 includes two rotating rods 241 and two cams 242. The rotating rods 241, cams 242, and brackets 214 are arranged in a one-to-one correspondence. The two rotating rods 241 are symmetrically arranged along the length of the cigarette box 130. The rear ends of the two rotating rods 241 are connected by a synchronous pulley structure. The synchronous pulley structure includes a synchronous pulley keyed to the rotating rod 241 and a synchronous belt 243 meshing with the synchronous pulley. Since the synchronous pulley structure technology is mature, diverse, and not the focus of this application, it will not be described in detail here. The front end of the rotating rod 241 is connected to the corresponding cam 242, and the cam 242 abuts against the side of the corresponding bracket 214 away from the spring 215. One of the rotating rods 241 is connected to a second motor 244, which is fixed to the outer wall of the detection chamber 100.

[0057] By setting the rotating rod 241 and the cam 242 to drive the support 214 to vibrate, the structure of the vibration assembly 240 can be simplified. The synchronous vibration of the two supports 214 can be achieved by using a second motor 244, which improves the working stability of the vibration assembly 240 and reduces the layout cost of the vibration assembly 240.

[0058] Reference Figure 1 and Figure 8 As shown, it can be understood that the tobacco dust measuring device also includes a second electronic scale 400, which is located on one side of the detection chamber 100. The top of the second electronic scale 400 is connected to a tobacco box 410. The connection structure between the second electronic scale 400 and the tobacco box 410 can be referred to the previous description of the positioning column 131 and the positioning groove 121, and will not be repeated here.

[0059] By setting up a second electronic scale 400, users can quickly detect the weight of tobacco shreds before detecting the weight of tobacco dust, thus improving the integration and ease of use of the tobacco dust measuring device.

[0060] Furthermore, the tobacco dust measuring device also includes a control console 500, which is located on the side of the detection chamber 100 away from the second electronic scale 400. The control console 500 is equipped with a centralized or distributed controller. For example, the controller can be a single microcontroller or a combination of multiple distributed microcontrollers. The microcontroller can run a control program. The controller is communicatively connected to the vibration component 240, the first motor 212, the first electronic scale 120, and the second electronic scale 400, thereby controlling the vibration component 240, the first motor 212, the first electronic scale 120, and the second electronic scale 400 to achieve their functions.

[0061] By setting up the control console 500, users can quickly control the operation of the first motor 212 and the second motor 244 in the screening mechanism 200, or detect and display in real time the weight of tobacco shreds obtained by the first electronic scale 120 and the weight of tobacco dust obtained by the second electronic scale 400, further improving the integration and ease of use of the tobacco dust measuring device and enhancing the user experience.

[0062] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A smoke measurement device, characterized by, include: The testing chamber (100) is equipped with an openable and closable testing cavity (110), and a first electronic scale (120) is installed in the testing cavity (110). A cigarette box (130) is connected to the top of the first electronic scale (120). A screening mechanism (200) is located above the tobacco dust box (130). The screening mechanism (200) includes two side plates (210), two sweeping plates (220), a screen belt (230), and a vibration assembly (240). The two side plates (210) are arranged opposite each other along the length of the tobacco dust box (130) and are elastically connected to the inner wall of the detection chamber (100). The two sweeping plates (220) are arranged opposite each other along the width of the tobacco dust box (130) and are connected to each other by a connecting rod (221). The sweeping plate (220) located on the front side is positioned along the width of the tobacco dust box (130). The width direction of the two side plates (210) is slidably connected to one of the side plates (210). The two side plates (210) and the two sweeping plates (220) surround and form a tobacco channel (250) with openings at both ends. The two opposite sides of the two side plates (210) are respectively connected to motor-driven winding rollers (260). The screen belt (230) is wound around the two winding rollers (260) and covers the bottom opening of the tobacco channel (250). The vibration component (240) is connected to the two side plates (210) to drive the tobacco channel (250) and the screen belt (230) to vibrate. The collection frame (300) is located on the rear side of the screen belt (230) in the width direction of the tobacco box (130) and can fit with the screen belt (230). The top surface of the collection frame (300) is flush with the bottom surface of the tobacco channel (250).

2. The soot measurement device according to claim 1, characterized in that Both sides of the side plate (210) are connected to detachable support plates (211). In the width direction of the cigarette box (130), a first motor (212) is installed on the support plate (211) located on the front side. The output shaft of the first motor (212) is connected to the rotating shaft of the corresponding winding roller (260).

3. The soot measurement device according to claim 1 or 2, characterized in that The bottom of the side plate (210) is provided with a guide block (213), which protrudes outward along the length of the cigarette box (130). The end of the guide block (213) away from the side plate (210) is provided with a rounded corner, which abuts against the screen belt (230).

4. The soot measurement device according to claim 1, characterized by The screening mechanism (200) further includes a frame (270), which is connected to the two side plates (210) by a connector (272) and abuts against the side of the screen belt (230) facing the cigarette box (130). The outer peripheral wall of the frame (270) is provided with a protective cloth (271), which is arranged around the cigarette box (130) and fits against the outer peripheral wall of the cigarette box (130).

5. The soot measurement device according to claim 4, characterized in that The detection chamber (110) is provided with a telescopic rod (111), which is connected to the collection frame (300).

6. The soot measurement device according to claim 4, characterized in that The bottom of the cigarette box (130) is symmetrically provided with two positioning posts (131), and the top surface of the first electronic scale (120) is provided with two positioning grooves (121). The positioning posts (131) are correspondingly inserted into the positioning grooves (121). There is a gap between the cigarette box (130) and the frame (270) for the cigarette box (130) to move.

7. The soot tester of claim 1, wherein The two side plates (210) are connected to brackets (214) on opposite sides. The detection cavity (110) is provided with two connecting plates (112) corresponding to the positions of the brackets (214). The connecting plates (112) and the brackets (214) are connected by springs (215).

8. The soot measurement device according to claim 7, characterized in that The vibration assembly (240) includes two rotating rods (241) and two cams (242). The rotating rods (241), the cams (242) and the bracket (214) are arranged in a one-to-one correspondence. The two rotating rods (241) are symmetrically arranged along the length of the cigarette box (130). The rear ends of the two rotating rods (241) are connected by a synchronous belt pulley structure. The front end of the rotating rod (241) is connected to the corresponding cam (242). The cam (242) abuts against the side of the corresponding bracket (214) away from the spring (215).

9. The soot tester of claim 1 wherein, The tobacco dust measuring device also includes a second electronic scale (400), which is located on one side of the detection chamber (100), and a tobacco box (410) is connected to the top of the second electronic scale (400).

10. The soot measurement device according to claim 9, characterized in that The tobacco dust measuring device also includes a control console (500), which is located on the side of the detection chamber (100) away from the second electronic scale (400). The control console (500) is communicatively connected to the vibration component (240), the first electronic scale (120) and the second electronic scale (400).