Dust removal device and cigarette production system

By designing a dust removal device that includes a dust hopper, pipes, dust collection components, cleaning components, and isolation components, the problem of dust hopper blockage was solved, enabling continuous production and stable equipment operation, and reducing raw material waste.

CN224525575UActive Publication Date: 2026-07-21CHINA TOBACCO GUANGXI IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA TOBACCO GUANGXI IND
Filing Date
2025-08-22
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In the existing cigarette production process, the dust hopper of the dust removal device is prone to blockage due to the hardening of dust accumulation, which affects the equipment and causes interlocking shutdowns, resulting in production interruptions and waste of raw materials.

Method used

Design a dust removal device, comprising a dust hopper, pipes, dust removal components, a cleaning component, and an isolation component. The position of the isolation component is sensed by a position sensor, and the controller sends a cleaning command. The cleaning component removes dust from the inner wall of the dust hopper to prevent blockage.

Benefits of technology

It effectively reduces dust accumulation in the ash hopper, prevents equipment downtime, improves production efficiency, and reduces raw material waste and equipment wear.

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Abstract

The application discloses a dust removal device and a cigarette production system, and relates to the technical field of cigarette production. The dust removal device comprises a dust removal assembly, a cleaning assembly and an isolation assembly. The dust removal assembly comprises a dust hopper, a pipeline and a dust removal piece. The two ends of the pipeline are connected with the dust hopper and the dust removal piece respectively. The cleaning assembly is at least partially in contact with the inner wall of the dust hopper. The isolation assembly is arranged at one end of the pipeline close to the dust hopper. The isolation assembly comprises a connecting piece, an isolation piece, a position sensing piece and a controller. The connecting piece is connected with the side wall of the pipeline. The isolation piece can rotate relative to the connecting piece. The position sensing piece and the cleaning assembly are electrically connected with the controller. When the position sensing piece senses that the isolation piece is located at a preset position, the position sensing piece sends a position signal to the controller. The controller sends a cleaning instruction to the cleaning assembly according to the position signal. When the isolation piece is located at the preset position, the pipeline and the dust hopper are isolated by the isolation piece. The dust removal device can reduce the dust accumulation in the dust hopper.
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Description

Technical Field

[0001] This utility model relates to the field of cigarette production technology, and more specifically, to a dust removal device and a cigarette production system. Background Technology

[0002] In cigarette production, dust removal devices are crucial for ensuring a clean production environment and stable product quality. These devices typically collect tobacco dust generated during production using negative pressure suction. The heating and humidification processes involved in cigarette manufacturing result in highly adhesive dust. This damp dust easily accumulates on the inner wall of the dust collector's hopper, hardening and clogging over time. More seriously, current cigarette factories commonly use interconnected control systems. When a dust removal device malfunctions and shuts down due to blockage, critical equipment such as the tobacco drying machine and leaf moistening machine in the tobacco processing workshop, as well as the cigarette rolling machine and packaging machine in the packaging workshop, will simultaneously stop operating. This chain reaction not only disrupts production but also wastes raw materials and causes equipment idling losses. Utility Model Content

[0003] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a dust removal device that can reduce dust accumulation in the ash hopper.

[0004] This application also provides a cigarette production system.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: In a first aspect, this application provides a dust removal device, comprising: a dust removal assembly including a dust hopper, a pipe, and a dust removal component, wherein both ends of the pipe are connected to the dust hopper and the dust removal component respectively; a cleaning assembly disposed within the dust hopper and at least partially in contact with the inner wall of the dust hopper; and an isolation assembly disposed at one end of the pipe near the dust hopper, the isolation assembly including a connector, an isolation component, a position sensor, and a controller, wherein both ends of the connector are connected to the side walls of different positions of the pipe respectively, the isolation component is rotatably connected to the connector and is rotatable relative to the connector, the position sensor and the cleaning assembly are electrically connected to the controller, the position sensor is used to sense the position signal of the isolation component, and when the position sensor senses that the isolation component is located at a preset position, the position sensor sends the position signal to the controller, and the controller sends a cleaning command to the cleaning assembly according to the position signal; wherein, when the isolation component is located at the preset position, the pipe and the dust hopper are isolated by the isolation component.

[0006] In an optional embodiment, the position sensor is a limit switch, and when the isolator is located at the preset position, the isolator abuts against the limit switch.

[0007] In an optional embodiment, the isolation component further includes an abutment member connected to the side wall of the pipe and disposed at the end of the isolation component near the ash hopper. When the isolation component is in the preset position, the end of the isolation component near the ash hopper abuts against the abutment member.

[0008] In an optional embodiment, the isolation component further includes an elastic connector, the isolation component being rotatably connected to the connector via the elastic connector, and the isolation component being located at the preset position when the elastic connector is in its natural state.

[0009] In an optional embodiment, the connector is disposed in the middle of the pipe to define a first channel and a second channel between the two sides of the connector and the side wall of the pipe, and the isolation member includes a first isolation member and a second isolation member, the first isolation member and the second isolation member being rotatably connected to the connector. The first isolation component is disposed at the first channel, and the second isolation component is disposed at the second channel. When the first isolation component is at the preset position, the first channel is closed, and when the second isolation component is at the preset position, the second channel is closed.

[0010] In an optional embodiment, the cleaning assembly includes a drive component and a cleaning component. The drive component is electrically connected to the controller, connected to the connector, and drivenly connected to the cleaning component. The drive component is used to drive the cleaning component to rotate about the ash hopper axially, and the cleaning component is at least partially in contact with the inner wall of the ash hopper.

[0011] In an optional embodiment, the cleaning assembly further includes a guide member, a guide groove is provided in the ash hopper, the guide groove extends circumferentially along the ash hopper, one end of the guide member is connected to the cleaning component, and the other end of the guide member passes through the guide groove.

[0012] In an optional embodiment, the cleaning assembly further includes a connecting arm, one end of which is connected to the drive member, the other end of which is connected to the cleaning member, and the end of the guide member away from the guide groove is connected to the connecting arm.

[0013] In an optional embodiment, the diameter of the ash hopper gradually increases in the direction away from the pipe.

[0014] Secondly, this application provides a cigarette production system, including a dust removal device as described in any of the foregoing embodiments.

[0015] The dust removal device of this application has the following advantages: In the dust removal device of this application, the ash hopper is used to contact the cigarette production equipment, and the dust removal component is used to suck up dust, allowing the dust to enter the dust removal component sequentially through the ash hopper and the pipe, thereby achieving dust removal from the cigarette production equipment. During this process, since the isolation component is located at the end of the pipe near the ash hopper and can rotate relative to the connecting component, when the dust removal component sucks up the dust, the high-speed flowing dust-laden airflow pushes the isolation component to rotate relative to the connecting component, forming an air passage between the pipe and the ash hopper, thus achieving dust suction. When dust accumulates on the inner wall of the ash hopper, causing a decrease in airflow, the pushing effect of the airflow on the isolation component decreases. When the airflow can no longer push the isolation component, the isolation component will be in a preset position. At this time, the pipe and the ash hopper will be isolated by the isolation component, and dust will no longer be able to enter the pipe through the ash hopper. When the position sensor detects that the isolator is in a preset position, it sends the position signal to the controller. The controller then sends a cleaning command to the cleaning assembly based on the position signal. Since at least part of the cleaning assembly is in contact with the inner wall of the ash hopper, when the cleaning assembly receives the cleaning command, it can clean the inner wall of the ash hopper, thereby removing the dust accumulated in the ash hopper and reducing dust accumulation in the ash hopper. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A three-dimensional structural schematic diagram of the dust removal device in this application is shown. Figure 1 ; Figure 2 A three-dimensional structural schematic diagram of the dust removal device in this application is shown. Figure 2 ; Figure 3 It shows Figure 2 Enlarged structural diagram at point A; Figure 4 A three-dimensional structural schematic diagram of the isolation component in this application is shown.

[0018] Explanation of key component symbols: 100 - Dust removal assembly; 110 - Ash hopper; 111 - Guide chute; 120 - Pipeline; 121 - First channel; 122 - Second channel; 130 - Dust removal component; 200 - Sweeping assembly; 210 - Drive unit; 220 - Sweeping component; 230 - Guide component; 240 - Connecting arm; 300 - Isolation component; 310 - Connector; 320 - Isolation component; 321 - First isolation component; 322 - Second isolation component; 330 - Position sensor; 340 - Controller; 350 - Abutment component; 360 - Flexible connector; Detailed Implementation The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0019] In the description of this application, 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", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0020] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 application according to the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] Reference Figure 1 as well as Figure 3 As shown, the dust removal device involved in the embodiments of this application includes: a dust removal component 100, a cleaning component 200, and an isolation component 300.

[0024] Specifically, the dust removal assembly 100 includes a dust hopper 110, a pipe 120, and a dust removal component 130. Both ends of the pipe 120 are connected to the dust hopper 110 and the dust removal component 130, respectively. The cleaning assembly 200 is disposed inside the dust hopper 110 and at least partially contacts the inner wall of the dust hopper 110. The isolation assembly 300 is disposed at one end of the pipe 120 near the dust hopper 110. The isolation assembly 300 includes a connector 310, an isolation component 320, a position sensor 330, and a controller 340. Both ends of the connector 310 are connected to the side walls of different locations on the pipe 120, and the isolation component 320 is connected to the side wall of the pipe 120. The connecting member 310 is rotatably connected, and the isolating member 320 is rotatable relative to the connecting member 310. The position sensing member 330 and the cleaning assembly 200 are both electrically connected to the controller 340. The position sensing member 330 is used to sense the position signal of the isolating member 320. When the position sensing member 330 senses that the isolating member 320 is in a preset position, the position sensing member 330 sends a position signal to the controller 340. The controller 340 sends a cleaning command to the cleaning assembly 200 according to the position signal. When the isolating member 320 is in the preset position, the pipe 120 and the ash hopper 110 are isolated by the isolating member 320.

[0025] In the dust removal device of this application, the ash hopper 110 is used to contact the cigarette production equipment, and the dust removal component 130 is used to suck up dust, so that the dust can enter the dust removal component 130 sequentially through the ash hopper 110 and the pipe 120, thereby achieving dust removal from the cigarette production equipment. In this process, since the isolation component 300 is located at the end of the pipe 120 near the ash hopper 110, and the isolation component 320 can rotate relative to the connecting component 310, when the dust removal component 130 sucks up the dust, the high-speed flowing dust-laden airflow will push the isolation component 320 to rotate relative to the connecting component 310, so as to form an air passage between the pipe 120 and the ash hopper 110, thereby achieving dust suction. When dust accumulates on the inner wall of the ash hopper 110, causing a decrease in airflow, the pushing effect of the airflow on the isolation element 320 will decrease. When the airflow cannot push the isolation element 320, the isolation element 320 will be in a preset position. At this time, the pipe 120 and the ash hopper 110 will be isolated by the isolation element 320, and the dust will no longer be able to enter the pipe 120 through the ash hopper 110. When the position sensor 330 senses that the isolator 320 is in a preset position, the position sensor 330 will send the position signal to the controller 340. The controller 340 will then send a cleaning command to the cleaning assembly 200 based on the position signal. Since at least a part of the cleaning assembly 200 is in contact with the inner wall of the ash hopper 110, when the cleaning assembly 200 receives the cleaning command, it can clean the inner wall of the ash hopper 110, thereby removing the dust accumulated in the ash hopper 110 and reducing the accumulation of dust in the ash hopper 110.

[0026] Reference Figure 3 as well as Figure 4 As shown, the position sensor 330 is a limit switch. When the isolator 320 is in a preset position, the isolator 320 abuts against the limit switch.

[0027] In this embodiment, when the isolator 320 is in a preset position, since the isolator 320 abuts against the limit switch, the limit switch will be triggered by the isolator 320, so that the limit switch can send an electrical signal to the controller 340. The controller 340 will then send a cleaning command to the cleaning component 200 according to the signal, thereby starting the removal of the accumulated dust in the dust.

[0028] Continue to refer to Figure 3 as well as Figure 4 As shown, the isolation assembly 300 also includes an abutment 350, which is connected to the side wall of the pipe 120 and is disposed at the end of the isolation assembly 320 near the ash hopper 110. When the isolation assembly 320 is in a preset position, the end of the isolation assembly 320 near the ash hopper 110 abuts against the abutment 350.

[0029] In this embodiment, since the abutment 350 is connected to the side wall of the pipe 120 and is disposed at the end of the isolation member 320 near the ash hopper 110, when the isolation member 320 is in the preset position, the end of the isolation member 320 near the ash hopper 110 can abut against the abutment 350, so that the isolation member 320 is supported by the abutment 350, thereby improving the structural stability of the isolation member 320. At the same time, the movement of the isolation member 320 can be limited by the abutment 350, so that the isolation member 320 can move within a preset range.

[0030] Reference Figure 4 As shown, the isolation component 300 also includes an elastic connector 360. The isolation component 320 is rotatably connected to the connector 310 through the elastic connector 360. When the elastic connector 360 is in its natural state, the isolation component 320 is located at a preset position.

[0031] In this embodiment, since the isolation chamber is rotatably connected to the connector 310 via the elastic connector 360, and the isolation member 320 is located at a preset position when the elastic connector 360 is in its natural state, when the dust removal component 130 performs suction, the high-speed flowing dust-laden airflow will push the isolation member 320 to rotate relative to the connector 310, thereby forming an air passage between the pipe 120 and the dust hopper 110, thus achieving dust suction. At this time, the elastic connector 360 is in a deformed state, so that the elastic connector 360 has a thrust to push the isolation member 320 back to the preset position. Thus, when the isolation member 320 is no longer pushed by the airflow, the isolation member 320 will return to the preset position under the push of the elastic connector 360, and can be stabilized at the preset position under the action of the elastic connector 360, thereby ensuring stable contact between the isolation member 320 and the position sensor 330 and improving the response stability of the cleaning component 200.

[0032] Reference Figure 2 as well as Figure 4 As shown, the connector 310 is disposed in the middle of the pipe 120 to define a first channel 121 and a second channel 122 between the two sides of the connector 310 and the side wall of the pipe 120. The isolator 320 includes a first isolator 321 and a second isolator 322, both of which are rotatably connected to the connector 310. The first isolator 321 is disposed at the first channel 121, and the second isolator 322 is disposed at the second channel 122. When the first isolator 321 is in a preset position, the first channel 121 is closed, and when the second isolator 322 is in a preset position, the second channel 122 is closed.

[0033] In this embodiment, the first isolator 321 is located within the first channel 121, and the second isolator 322 is located within the second channel 122. The first isolator 321 opens and closes the first channel 121, and the second isolator 322 opens and closes the second channel 122. This allows dust-laden airflow to pass through both sides of the connector 310. At the same time, when the first isolator 321 and / or the second isolator 322 comes into contact with the position sensor 330, the cleaning operation of the cleaning assembly 200 is triggered to remove the accumulated dust.

[0034] Specifically, in this embodiment, both the first isolation member 321 and the second isolation member 322 can contact a position sensor 330 at a preset position, and both the first isolation member 321 and the second isolation member 322 can abut against a contact member 350 at a preset position.

[0035] Reference Figure 2 As shown, the cleaning assembly 200 includes a drive component 210 and a cleaning component 220. The drive component 210 is electrically connected to the controller 340, connected to the connector 310, and drivenly connected to the cleaning component 220. The drive component 210 is used to drive the cleaning component 220 to rotate around the ash hopper 110 axially. The cleaning component 220 is at least partially in contact with the inner wall of the ash hopper 110.

[0036] In this embodiment, when the controller 340 receives the position signal sent by the position sensor 330, the controller 340 sends a command to the drive unit 210 according to the position signal, so that the drive unit 210 drives the cleaning unit 220 to rotate around the axial direction of the ash hopper 110. Since the cleaning unit 220 is at least partially in contact with the inner wall of the ash hopper 110, when the cleaning unit 220 rotates around the axial direction of the ash hopper 110, it can clean the dust on the inner wall of the ash hopper 110, so as to remove the accumulated dust in the ash hopper 110.

[0037] Continue to refer to Figure 2 As shown, the cleaning assembly 200 also includes a guide member 230. A guide groove 111 is provided in the ash hopper 110. The guide groove 111 extends circumferentially along the ash hopper 110. One end of the guide member 230 is connected to the cleaning assembly 220, and the other end of the guide member 230 passes through the guide groove 111.

[0038] In this embodiment, since the guide groove 111 extends circumferentially along the ash hopper 110, one end of the guide member 230 is connected to the cleaning member 220, and the other end of the guide member 230 passes through the guide groove 111. Thus, when the cleaning member 220 rotates around the axial direction of the ash hopper 110, the guide member 230 can slide within the guide groove 111. In this way, the movement of the cleaning member 220 can be guided and limited by the guide member 230 to ensure that the cleaning member 220 can rotate stably around the axial direction of the ash hopper 110, thereby ensuring the cleaning effect of the cleaning member 220 on the accumulated dust in the ash hopper 110.

[0039] Continue to refer to Figure 2 As shown, the cleaning assembly 200 also includes a connecting arm 240, one end of which is connected to the drive member 210, and the other end of which is connected to the cleaning member 220. The end of the guide member 230 away from the guide groove 111 is connected to the connecting arm 240.

[0040] In this embodiment, since one end of the connecting arm 240 is connected to the drive member 210 and the other end of the connecting arm 240 is connected to the cleaning member 220, and the end of the guide member 230 away from the guide groove 111 is connected to the connecting arm 240, the cleaning member 220 can be rotated by driving the connecting arm 240. At the same time, the guide member 230 can be rotated in the guide groove 111 by driving the connecting arm 240, so that the guide member 230 can guide and limit the movement of the cleaning member 220.

[0041] Continue to refer to Figure 2 As shown, the diameter of the ash hopper 110 gradually increases in the direction away from the pipe 120.

[0042] In this embodiment, since the diameter of the ash hopper 110 gradually increases in the direction away from the pipe 120, the dust collection capacity of the ash hopper 110 can be increased, thereby improving the dust removal effect of the dust removal device.

[0043] This application also provides a cigarette production system, including the aforementioned dust removal device.

[0044] In the cigarette production system of this application, since the dust removal device can reduce the accumulation of dust in the ash hopper 110, the cigarette production system can carry out continuous production, thereby improving production efficiency and reducing raw material waste and equipment wear.

[0045] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0046] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A dust removal device, characterized in that, include: A dust removal assembly includes a dust hopper, a pipe, and a dust removal component, wherein both ends of the pipe are connected to the dust hopper and the dust removal component, respectively. A cleaning assembly is disposed inside the ash hopper and at least partially contacts the inner wall of the ash hopper; An isolation component is disposed at one end of the pipe near the ash hopper. The isolation component includes a connector, an isolation element, a position sensor, and a controller. The two ends of the connector are respectively connected to the sidewalls at different positions of the pipe. The isolation element is rotatably connected to the connector and can rotate relative to the connector. The position sensor and the cleaning component are both electrically connected to the controller. The position sensor is used to sense the position signal of the isolation element. When the position sensor senses that the isolation element is in a preset position, the position sensor sends the position signal to the controller. The controller sends a cleaning command to the cleaning component based on the position signal. When the isolating element is located at the preset position, the pipe and the ash hopper are isolated by the isolating element.

2. The dust removal device according to claim 1, characterized in that, The position sensor is a limit switch. When the isolator is in the preset position, the isolator abuts against the limit switch.

3. The dust removal device according to claim 1, characterized in that, The isolation component also includes an abutment member connected to the side wall of the pipe and disposed at the end of the isolation component near the ash hopper. When the isolation component is in the preset position, the end of the isolation component near the ash hopper abuts against the abutment member.

4. The dust removal device according to claim 1, characterized in that, The isolation component further includes an elastic connector, and the isolation component is rotatably connected to the connector through the elastic connector. When the elastic connector is in its natural state, the isolation component is located at the preset position.

5. The dust removal device according to claim 1, characterized in that, The connector is disposed in the middle of the pipe to define a first channel and a second channel between the two sides of the connector and the side wall of the pipe. The isolation member includes a first isolation member and a second isolation member, and the first isolation member and the second isolation member are rotatably connected to the connector. The first isolation component is disposed at the first channel, and the second isolation component is disposed at the second channel. When the first isolation component is at the preset position, the first channel is closed, and when the second isolation component is at the preset position, the second channel is closed.

6. The dust removal device according to claim 1, characterized in that, The cleaning assembly includes a drive component and a cleaning component. The drive component is electrically connected to the controller, connected to the connector, and driven to the cleaning component. The drive component is used to drive the cleaning component to rotate about the axial direction of the ash hopper, and the cleaning component is at least partially in contact with the inner wall of the ash hopper.

7. The dust removal device according to claim 6, characterized in that, The cleaning assembly also includes a guide member. The ash hopper is provided with a guide groove that extends circumferentially along the ash hopper. One end of the guide member is connected to the cleaning assembly, and the other end of the guide member passes through the guide groove.

8. The dust removal device according to claim 7, characterized in that, The cleaning assembly also includes a connecting arm, one end of which is connected to the drive member, and the other end of which is connected to the cleaning member. The end of the guide member away from the guide groove is connected to the connecting arm.

9. The dust removal device according to claim 1, characterized in that, The diameter of the ash hopper gradually increases in the direction away from the pipe.

10. A cigarette production system, characterized in that, include: The dust removal device as described in any one of claims 1-9.