Cutting drum wheel structure for cigarette making machine and cigarette making machine

By introducing air guide channels and air duct structures into the cutting drum of the cigarette machine, the problem of blade breakage caused by clogging of the cutting groove was solved, achieving a self-cleaning effect and improving the operating efficiency of the cigarette machine.

CN224038459UActive Publication Date: 2026-03-27CHINA TOBACCO ZHEJIANG IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-14
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

The cutting drum of the existing cigarette machine is prone to clogging of the cutting groove due to the accumulation of paper and tobacco dust during the cutting process, which can lead to blade breakage. In addition, it requires frequent cleaning and maintenance, which reduces the operating efficiency of the cigarette machine.

Method used

The cutting drum structure is designed with air guide channels and air ducts. Through the suction effect of the air distribution seat, the paper dust and smoke dust accumulated in the cutting groove are discharged, achieving self-cleaning and reducing the risk of blade explosion.

Benefits of technology

It effectively reduces the possibility of clogging the cutting groove, lowers the frequency of disassembly and cleaning maintenance, and improves the operating efficiency of the cigarette machine.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a cutting drum wheel structure used for a cigarette making machine and the cigarette making machine, the cutting drum wheel structure used for the cigarette making machine comprises a wheel shaft used for being installed on an air distribution seat and a drum wheel arranged on the wheel shaft in a sleeving mode, and the drum wheel comprises two wheel bodies arranged in the axial direction of the wheel shaft in a spaced mode; a gap between the two wheel bodies is a cutting groove, the interior of the wheel shaft is hollow to form an air channel, and air guide channels communicating with the cutting groove and the air channel are formed in the end faces, facing the cutting groove, of the two wheel bodies. Thus, under the suction action of the air distribution seat channel, paper powder and tobacco powder gathered in the cutting groove are sequentially discharged through the air guide channel and the air channel, the purpose of self-cleaning of the cutting groove is achieved, the possibility of knife explosion caused by gathering of the paper powder and the tobacco powder in the cutting groove is reduced, and the cutting efficiency is improved. And the frequency and time for disassembling, cleaning and maintaining the cutting drum wheel structure are greatly reduced, and the effective operation efficiency of the cigarette making machine is improved.
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Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cigarette making machines, in particular to a cutting drum structure for a cigarette making machine. BACKGROUND

[0002] The cutting drum is a component of a cigarette making machine, and its main function is to cut double-length cigarettes into two single-length cigarettes. During the cutting process, a round cutter is embedded in a cutting groove (cutter groove) of the cutting drum. When the cigarette is cut by the round cutter, paper dust and tobacco dust will be generated. If these paper dust and tobacco dust are not removed in time, the cutting groove of the cutting drum will be blocked, which will cause the round cutter to explode. When the cutter explodes, a large number of defective cigarettes will be generated.

[0003] In order to avoid the problem of cutter explosion caused by cutting groove blockage, the existing method is to disassemble and clean by maintenance personnel. However, the cleaning time is long and the period is short, which reduces the effective operation efficiency of the cigarette making machine. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a cutting drum structure for a cigarette making machine which reduces the risk of cutter groove blockage.

[0005] The present application provides a cutting drum structure for a cigarette making machine, which comprises a shaft for mounting on a gas distribution seat and a drum sleeve set on the shaft. The drum comprises two drum bodies arranged at intervals along the axial direction of the shaft. The gap between the two drum bodies is a cutting groove. The inside of the shaft is hollow to form an air duct. The end faces of the two drum bodies towards the cutting groove are each provided with an air guide channel which communicates with the cutting groove and the air duct.

[0006] In this way, under the suction effect of the gas distribution seat channel, the paper dust and tobacco dust accumulated in the cutting groove are sequentially discharged through the air guide channel and the air duct, achieving the purpose of self-cleaning of the cutting groove. The possibility of cutter explosion caused by the accumulation of paper dust and tobacco dust in the cutting groove is reduced, the frequency and time of disassembling, cleaning and repairing the cutting drum structure are greatly reduced, and the effective operation efficiency of the cigarette making machine is improved.

[0007] In one embodiment, the air guide channel comprises a connecting groove and an air guide groove which communicates with the connecting groove and the cutting groove. At least part of the connecting groove is located between the air guide groove and the shaft. The shaft is provided with a first air suction hole which communicates with the air duct and the connecting groove.

[0008] In one embodiment, the connecting groove is a strip-shaped groove which extends inwardly and outwardly.

[0009] In one of the embodiments, the air guide groove is in the shape of a sector, and comprises two first groove walls arranged along the circumference of the drum and gradually inclined towards each other from outside to inside, and each of the two first groove walls is connected with a corresponding side wall of the connecting groove.

[0010] In one of the embodiments, the connecting groove is partially located in the air guide groove.

[0011] In one of the embodiments, the air guide groove further comprises a second groove wall located between the two first groove walls and connected with one end of each of the corresponding first groove walls in a smooth transition manner, and a third groove wall connected with the first groove wall and the second groove wall in a smooth transition manner. In this way, the paper ends and cigarette ends and other sundries can smoothly enter the connecting groove when passing through the connecting groove in the smooth transition manner, so as to avoid accumulation at the connecting corner and affect the cleaning effect.

[0012] In one of the embodiments, a groove extending along the axial direction of the drum body is formed on the outer circumferential wall of the drum body, a wind passage is formed in the groove, a second air suction hole connected with the air duct is formed on the circumferential wall of the shaft, and the wind passage is connected with the second air suction hole.

[0013] In one of the embodiments, the two drum bodies are symmetrically arranged, and the groove on each of the drum bodies has a plurality of grooves arranged along the circumferential direction of the drum body.

[0014] In one of the embodiments, the second air suction hole has a plurality of rows and is arranged along the circumferential direction of the shaft.

[0015] In one of the embodiments, the air guide channel on each of the two drum bodies has a plurality of air guide channels uniformly distributed along the circumferential direction of the cutting groove.

[0016] The application also provides a cigarette making machine comprising the cutting drum structure of any one of the embodiments.

[0017] Compared with the prior art, in the cutting drum structure provided by the application, the paper ends and cigarette ends accumulated in the cutting groove are sequentially discharged through the air guide channel and the air duct under the suction effect of the air distribution seat channel, so that the self-cleaning of the cutting groove is achieved, the possibility of explosion of the cutting drum structure due to the accumulation of paper ends and cigarette ends in the cutting groove is reduced, the frequency and time of disassembly, cleaning and maintenance of the cutting drum structure are greatly reduced, and the effective operation efficiency of the cigarette making machine is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0019] Figure 1 A perspective view of a cutting drum structure according to an embodiment of the present application;

[0020] Figure 2 A perspective view of a cutting drum structure according to an embodiment of the present application; Figure 1 A structural schematic diagram of a structure with one wheel body removed in the cutting drum;

[0021] Figure 3 A structural schematic diagram of a structure with one wheel body removed in the cutting drum; Figure 2 A structural schematic diagram of a structure with one wheel body removed in the cutting drum;

[0022] Reference signs: 1, axle; 11, air duct; 12, first air suction hole; 13, second air suction hole; 2, drum; 21, wheel body; 210, end face; 211, groove; 212, air passage; 22, cutting groove; 3, air guide channel; 31, connecting groove; 32, air guide groove; 321, first groove wall; 322, second groove wall; 323, third groove wall. DETAILED DESCRIPTION

[0023] In order to make the above purposes, features and advantages of the present application more apparent and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] It is to be understood that where the terms "fixed" or "attached" are used herein with reference to one element being connected to another element, it can be directly connected to the other element or intervening elements can be present. Where, for example, an element over another element, or elements, it can be directly on the other element or intervening elements can be present. As used in the description of the application and the appended claims, the terms "vertical", "horizontal", "up", "down", "left", "right", "side", "top", "bottom", and the like are used for the purpose of explanation only, and are not intended to limit the application to any particular orientation of the various example structures and elements described herein. These terms are used in the description of the application and the appended claims only to clarify the meaning of the description and the claims, and are not intended to limit the application to only the orientations described in the examples shown in the drawings. Since the embodiments disclosed herein can be oriented in different directions, the directional terms are used only to describe the examples and should not be construed as limiting the application to only the orientations described in the examples, such as "up" and "down" do not necessarily mean opposite or consistent with the direction of gravity.

[0025] In addition, the terms "first", "second", and the like, do not denote any

[0026] In this application, unless specifically stated otherwise and / or unless explicitly stated otherwise, the term "on" or "under" means that the first element can be directly in contact with a second element or intervening elements can be present. Also, the term "on" or "over" and "above" means that the first element can be directly above or obliquely above the second element, or only means that the first element is horizontally higher than the second element. The term "under", "below" and "under" means that the first element can be directly below or obliquely below the second element, or only means that the first element is horizontally lower than the second element.

[0027] It should be noted that "axial arrangement" means that the overall arrangement direction is along the axial direction, including but not limited to axial extension, which can be at an angle with the axial direction.

[0028] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0029] As Figures 1-3As shown in the drawings, the application discloses a cutting drum structure for a cigarette making machine. The cutting drum structure comprises a wheel shaft 1 for being mounted on a gas distribution seat and a drum 2 sleeved on the wheel shaft 1, the drum 2 comprises two wheel bodies 21 arranged along the axial direction of the wheel shaft 1, and a cutting groove 22 is formed between the two wheel bodies 21, the inside of the wheel shaft 1 is hollow to form an air duct 11, and the end surface 210 of each wheel body 21 towards the cutting groove 22 is provided with a wind guide channel 3 which is in communication with the cutting groove 22 and the air duct 11. In this way, the wind guide channels 3 on the two wheel bodies 21 are oppositely arranged in the cutting groove 22.

[0030] It can be understood that, under the suction effect of the gas distribution seat channel, the paper dust and tobacco dust gathered in the cutting groove 22 are sequentially discharged through the wind guide channel 3 and the air duct 11, so that the self-cleaning purpose of the cutting groove 22 is achieved, the possibility of cutter explosion caused by the gathering of paper dust and tobacco dust in the cutting groove 22 is reduced, the frequency and time of disassembling, cleaning and maintaining the cutting drum structure are greatly reduced, and the effective operation efficiency of the cigarette making machine is improved.

[0031] In the embodiment, the wind guide channels 3 on the two wheel bodies 21 are all multiple and uniformly distributed along the circumferential direction of the cutting groove 22. In this way, the sundries gathered in the cutting groove 22 at different positions along the circumferential direction are discharged into the air duct 11 through the wind guide channels 3 at the corresponding positions, and finally discharged through the air duct 11, so that the cleaning effect of the cutting groove 22 is improved.

[0032] The structures of the wind guide channels 3 are the same, and one of the wind guide channels 3 will be taken as an example for description below.

[0033] The structure of the wind guide channel 3 has multiple forms, and a single slot form can be adopted. In the embodiment, as shown in Figure 2 and Figure 3 The wind guide channel 3 comprises a connecting slot 31 and a wind guide slot 32 which is in communication with the connecting slot 31 and the cutting groove 22, and at least part of the connecting slot 31 is located between the wind guide slot 32 and the wheel shaft 1, and the wheel shaft 1 is provided with a first air suction hole 12 which is in communication with the air duct 11 and the connecting slot 31. In this way, the paper dust and tobacco dust gathered in the cutting groove 22 are sequentially discharged through the wind guide slot 32, the connecting slot 31 and the air duct 11.

[0034] The connecting slot 31 can adopt an arc-shaped guide slot form or other forms. In the embodiment, the connecting slot 31 is a strip-shaped slot which extends inside and outside.

[0035] As shown in Figure 2 and Figure 3As shown, the cross-section of the aforementioned air guide trough 32 is fan-shaped and includes two first trough walls 321 arranged at intervals along the circumference of the drum 2. Both first trough walls 321 are gradually inclined towards each other from the outside to the inside, and the two first trough walls 321 are respectively connected to the corresponding side walls of the connecting trough 31. In this way, the inclined arrangement of the first trough walls 321 facilitates the guidance of paper dust and tobacco dust flowing out of the cutting groove 22 into the connecting trough 31, reducing the accumulation at the connection between the first trough walls 321 and the corresponding side walls of the connecting trough 31.

[0036] The connecting groove 31 can be located inside the air guide groove 32. In this embodiment, a portion of the connecting groove 31 is located inside the air guide groove 32. In this way, paper dust and tobacco dust in the air guide groove 32 can more reliably enter the connecting groove 31 and then be discharged into the air duct 11.

[0037] Furthermore, such as Figure 2 and Figure 3 As shown, the air guide trough 32 also includes a second trough wall 322 and a third trough wall 323. The second trough wall 322 is located between the two first trough walls 321, and both ends of the second trough wall 322 are smoothly connected to one end of the corresponding first trough wall 321. The third trough wall 323 is smoothly connected to both the first trough wall 321 and the second trough wall 322. This smooth transition connection allows debris such as paper dust and cigarette dust to smoothly enter the connecting groove 31 when passing through, avoiding accumulation at the corners of the connection and affecting the cleaning effect.

[0038] In this embodiment, such as Figures 1-3 As shown, a groove 211 extending axially along the outer peripheral wall of the wheel body 21 is provided, and an air passage 212 is provided within the groove 211. A second suction hole 13 communicating with the air duct 11 is also provided on the peripheral wall of the wheel axle 1. The air passage 212 and the second suction hole 13 are connected. Thus, under suction, the air passage 212 is used to adsorb and transfer the cigarette. Furthermore, the aforementioned second suction hole 13 is located on the inner side of the corresponding wheel body 21.

[0039] Specifically, the two wheel bodies 21 are symmetrically arranged, and each wheel body 21 has multiple grooves 211, which are spaced apart along the circumference of the wheel body 21. In this embodiment, the multiple grooves 211 on each wheel body 21 are evenly distributed. The second suction holes 13 are arranged in multiple rows, which are spaced apart along the circumference of the wheel axle 1.

[0040] This application also provides a cigarette rolling machine that includes the aforementioned cutting drum structure.

[0041] In the working process of the cutting drum structure, the circular cutter extends into the cutting groove 22 to cut cigarettes, and the paper and tobacco residues generated after the cigarettes are cut enter the air guide groove 32. Under the action of negative pressure air suction, the paper and tobacco residues pass through the connecting groove 31, then pass through the air duct 11 and the passage of the air distribution seat in sequence, and finally enter the negative pressure dust removal pipeline to be cleaned and removed.

[0042] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, but as long as the combinations of the technical features do not conflict, they should be considered within the scope of the present disclosure.

[0043] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A cutting drum structure for a cigarette rolling machine, comprising a wheel axle (1) for mounting on a gas distribution seat and a drum (2) sleeved on the wheel axle (1), wherein the drum (2) comprises two wheel bodies (21) spaced apart along the axial direction of the wheel axle (1), the gap between the two wheel bodies (21) being a cutting groove (22), characterized in that, The axle (1) has a hollow interior forming an air duct (11), and the two wheel bodies (21) have air guide channels (3) on their end faces (210) facing the cutting groove (22) that connect the cutting groove (22) and the air duct (11).

2. The cutting drum structure according to claim 1, characterized in that, The air guide channel (3) includes a connecting groove (31) and an air guide groove (32) connecting the connecting groove (31) and the cutting groove (22). At least part of the connecting groove (31) is located between the air guide groove (32) and the wheel axle (1). The wheel axle (1) is provided with a first air intake hole (12) connecting the air duct (11) and the connecting groove (31).

3. The cutting drum structure according to claim 2, characterized in that, The connecting groove (31) is a strip-shaped groove that extends inward and outward.

4. The cutting drum structure according to claim 2, characterized in that, The cross-section of the air guide groove (32) is fan-shaped and includes two first groove walls (321) arranged circumferentially along the drum (2). The two first groove walls (321) are gradually inclined toward each other from the outside to the inside, and the two first groove walls (321) are respectively connected to the corresponding side wall of the connecting groove (31).

5. The cutting drum structure according to claim 4, characterized in that, Part of the connecting groove (31) is located inside the air guide groove (32).

6. The cutting drum structure according to claim 4, characterized in that, The air guide trough (32) further includes a second trough wall (322) and a third trough wall (323). The second trough wall (322) is located between the two first trough walls (321), and the two ends of the second trough wall (322) are smoothly connected to one end of the corresponding side of the first trough wall (321). The third trough wall (323) is smoothly connected to the first trough wall (321) and the second trough wall (322).

7. The cutting drum structure according to claim 1, characterized in that, The outer peripheral wall of the wheel body (21) is provided with a groove (211) extending along the axial direction of the wheel body (21), and a ventilation hole (212) is provided in the groove (211). The peripheral wall of the wheel axle (1) is also provided with a second suction hole (13) that communicates with the air duct (11), and the ventilation hole (212) communicates with the second suction hole (13).

8. The cutting drum structure according to claim 7, characterized in that, The two wheel bodies (21) are arranged symmetrically, and each wheel body (21) has multiple grooves (211) that are spaced apart along the circumference of the wheel body (21).

9. The cutting drum structure according to any one of claims 1 to 8, characterized in that, There are multiple air guide channels (3) on both wheels (21), and they are evenly distributed along the circumference of the cutting groove (22).

10. A cigarette rolling machine, characterized in that, The cutting drum structure includes any one of claims 1 to 9.