Cigarette filter rod cutting drum

Abstract

The utility model relates to a cigarette production equipment technical field discloses a cigarette filter stick cutting drum, include: wheel body, its outer peripheral part is equipped with along wheel body axial extension's filter stick adsorption groove. Multiple filter stick adsorption grooves are along wheel body circumference interval distribution. Every filter stick adsorption groove is equipped with the adsorption hole group of penetrating wheel body. Wheel core, with wheel body coaxial arrangement, its outer diameter and wheel body's inner diameter are adapted and wheel core rotatably insert in wheel body. The wheel core inside includes hollow cavity. Wheel core is equipped with along wheel core circumference interval distribution and the gas distribution hole group of penetrating wheel core. The adsorption hole group and the gas distribution hole group at least partly communicate. Through the communication area between adsorption hole group and gas distribution hole group changes, with the adsorption force size of filter stick adsorption groove to filter stick is adjusted. Through above setting, utilize wheel body and wheel core's relative rotation and adjust the communication area of adsorption hole group and gas distribution hole group, realized the flexible control of adsorption force, thereby adapts different specifications's filter stick.

Description

Technical Field

[0001] This utility model relates to the technical field of cigarette production equipment, specifically to a cigarette filter rod cutting drum. Background Technology

[0002] In the cigarette production process, the function of the filter rod cutting drum is to sequentially draw the filter rods continuously output from the filter rod hopper into their adsorption grooves for axial alignment. Then, a cutter separates the filter rods into three or two double-length filter segments. During this process, the adsorption of the filter rods is achieved through negative pressure holes in the adsorption grooves.

[0003] However, in actual production, different specifications of filter rods (such as polypropylene filter rods and cellulose acetate filter rods) have different tolerances for negative pressure. If the negative pressure is too high, the adsorption force on the filter rods will be too great, and two filter rods may be sucked into the same filter rod adsorption tank at the same time, clogging the cutting drum and causing the cigarette machine to stop, which seriously affects the operating efficiency of the equipment.

[0004] Therefore, when the filter rod cutting drum processes filter rods of different specifications, its negative pressure should be adjusted to a suitable level. However, since the negative pressure air source provides negative pressure for the entire drum system, reducing the negative pressure can easily cause problems in the production of other drums. Therefore, the traditional approach of adjusting the negative pressure air source supply is not suitable for adjusting the adsorption force of the filter rod cutting drum.

[0005] Therefore, it is essential to propose a filter rod cutting drum that can achieve the function of adjusting adsorption force. Utility Model Content

[0006] The purpose of this invention is to propose a cigarette filter rod cutting drum that can achieve the function of adjusting adsorption force.

[0007] To achieve the above objectives, this utility model provides a cigarette filter rod cutting drum, comprising: The wheel body has filter rod adsorption grooves extending along the wheel body axis on its outer periphery; a plurality of the filter rod adsorption grooves are distributed at intervals along the circumference of the wheel body; each filter rod adsorption groove is provided with an adsorption hole group penetrating the wheel body; A wheel core is coaxially arranged with the wheel body, its outer diameter is adapted to the inner diameter of the wheel body, and the wheel core is rotatably inserted into the wheel body; the wheel core has a hollow cavity inside for connecting to an external negative pressure air source; the wheel core has a group of air distribution holes that are spaced apart along the circumference of the wheel core and penetrate the wheel core; the adsorption hole group is at least partially connected to the group of air distribution holes; By driving the wheel body and / or the wheel core, the communication area between the adsorption hole group and the air distribution hole group can be changed, thereby adjusting the adsorption force of the filter rod adsorption groove on the filter rod.

[0008] Furthermore, the adsorption pore group includes a first adsorption pore group and a second adsorption pore group, and each of the filter rod adsorption grooves is provided with a first adsorption pore group or a second adsorption pore group. The air distribution port group includes a first air distribution port group and a second air distribution port group; The cigarette filter rod cutting drum has the following two states: In the first state, the first adsorption pore group is at least partially connected to the first gas distribution pore group, and the second adsorption pore group is at least partially connected to the second gas distribution pore group. In the second state, the first adsorption pore group is at least partially connected to the second gas distribution pore group, and the second adsorption pore group is at least partially connected to the first gas distribution pore group. The total connected area of ​​the adsorption pore group and the gas distribution pore group in the first state is different from that in the second state.

[0009] Furthermore, the first adsorption pore group and the second adsorption pore group are alternately arranged in the adsorption grooves of two adjacent filter rods; The first air distribution hole group and the second air distribution hole group are arranged alternately along the circumference of the wheel core.

[0010] Furthermore, the first adsorption pore group includes a plurality of first adsorption pores spaced apart along the axial direction of the wheel body; The second adsorption hole group includes a plurality of second adsorption holes spaced apart along the axial direction of the wheel body, and the arrangement of the second adsorption holes is different from the arrangement of the first adsorption holes; The diameter of the first adsorption pore is the same as the diameter of the second adsorption pore; the number of the first adsorption pore is the same as the number of the second adsorption pore.

[0011] Furthermore, the arrangement of the first adsorption holes is symmetrical about the central plane of the wheel body perpendicular to the wheel body axis, and the arrangement of the second adsorption holes is symmetrical about the central plane of the wheel body perpendicular to the wheel body axis.

[0012] Furthermore, along the axial direction of the wheel body, the position of at least one first adsorption hole is aligned with the position of at least one second adsorption hole; the positions of the remaining first adsorption holes are relatively offset from the positions of the remaining second adsorption holes.

[0013] Furthermore, the first air distribution hole group includes a plurality of first air distribution holes spaced apart along the axial direction of the wheel core, and the arrangement of the first air distribution holes is the same as the arrangement of the first adsorption holes; The second air distribution hole group includes a plurality of second air distribution holes spaced apart along the axial direction of the wheel core, and the arrangement of the second air distribution holes is the same as the arrangement of the second adsorption holes; The diameter of the first air distribution hole is the same as the diameter of the second air distribution hole; the number of the first air distribution holes is the same as the number of the second air distribution holes.

[0014] Furthermore, the wheel body is provided with a first positioning part and a second positioning part, and the wheel core is provided with a third positioning part; Alternatively, the wheel core is provided with a first positioning part and a second positioning part, and the wheel body is provided with a third positioning part; When the first positioning part cooperates with the third positioning part, the cigarette filter rod cutting drum is in the first state; When the second positioning part cooperates with the third positioning part, the cigarette filter rod cutting drum is in the second state; Furthermore, the wheel body includes a first limiting portion, and the wheel core includes a second limiting portion; after the wheel body is fitted onto the wheel core, the first limiting portion abuts against the second limiting portion to limit the position of the wheel body along the axial direction of the wheel core.

[0015] Furthermore, the filter rod adsorption groove is provided with a cutting groove that extends circumferentially along the wheel body and penetrates the bottom of the filter rod adsorption groove; the cutting groove is used to provide passage space for the cutter passing through the filter rod adsorption groove, so that the cutter can cut the filter rod adsorbed in the filter rod adsorption groove.

[0016] The above-mentioned technical solution of this utility model has the following beneficial effects: the adsorption hole group and the air distribution hole group on the wheel core are at least partially connected to form an airflow channel, and the cross-sectional area of ​​the airflow channel is the connection area. An external negative pressure air source is connected to the hollow cavity inside the wheel core, and external air is continuously drawn in through the airflow channel, thereby generating an adsorption force to adsorb the filter rod into the filter rod adsorption groove. According to the principle of fluid mechanics, the change in the connection area directly affects the flow rate and pressure of the negative pressure airflow. When the connection area increases, the adsorption force increases accordingly; conversely, when the connection area decreases, the adsorption force decreases. In order to adjust the connection area between the adsorption hole group and the air distribution hole group, it can be achieved by the relative movement of the wheel body and the wheel core, and also by the relative movement of the wheel body and the wheel core in the axial direction. Through the relative rotation or relative movement of the wheel body and the wheel core in the axial direction, the connection area between the adsorption hole group and the air distribution hole group changes, thereby achieving the purpose of adjusting the magnitude of the adsorption force.

[0017] By adjusting the relative position of the wheel body and the wheel core to regulate the communication area between the adsorption hole group and the air distribution hole group without adjusting the external negative pressure air source, flexible control of the adsorption force is achieved, thus adapting to filter rods of different specifications. This avoids blockage caused by multiple filter rods being simultaneously adsorbed into the same filter rod adsorption groove due to excessive adsorption force, preventing downtime of the cigarette machine and improving production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of one embodiment of the core and body of the cigarette filter rod cutting drum of this utility model; Figure 2 This is a schematic diagram of one implementation of the wheel body; Figure 3 This is a schematic diagram of one implementation of the wheel hub; Figure 4 This is a schematic diagram of the adsorption pores in the first state; Figure 5 This is a schematic diagram of the adsorption pores in the second state.

[0019] Explanation of reference numerals in the attached figures 1-Wheel body; 11-Filter rod adsorption groove; 12-First limiting part; 13-Cutter groove; 2-Wheel core; 21-Second limiting part; 3-Adsorption hole group; 31-First adsorption hole group; 311-First adsorption hole; 32-Second adsorption hole group; 321-Second adsorption hole; 4-Air distribution hole group; 41-First air distribution hole group; 411-First air distribution hole; 42-Second air distribution hole group; 421-Second air distribution hole; 5-First positioning part; 6-Second positioning part; 7-Third positioning part; Detailed Implementation The specific embodiments of this utility model are described in detail below. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0020] In this utility model, unless otherwise stated, directional terms such as "upper" and "lower" generally refer to the orientation in the assembled and used state. "Inner" and "outer" refer to the inner and outer sides relative to the outline of each component itself.

[0021] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0022] like Figure 1 As shown, this utility model provides a cigarette filter rod cutting drum, including a wheel body 1 and a wheel core 2. The wheel body 1 has filter rod adsorption grooves 11 extending axially along its outer periphery. These grooves adsorb and support the filter rods. Multiple filter rod adsorption grooves 11 are spaced apart circumferentially along the wheel body 1. Each filter rod adsorption groove 11 contains an adsorption hole group 3 penetrating the wheel body 1. The wheel core 2 is coaxially arranged with the wheel body 1, its outer diameter matching the inner diameter of the wheel body 1, and is rotatably inserted into the wheel body 1. The wheel core 2 has a hollow cavity inside for connecting to an external negative pressure air source. The wheel core 2 has a group of air distribution holes 4 spaced apart circumferentially and penetrating the wheel core 2. The adsorption hole group 3 and the air distribution hole group 4 are at least partially connected. By driving the wheel body 1 and / or the wheel core 2, the communication area between the adsorption hole group 3 and the air distribution hole group 4 can be changed to adjust the adsorption force of the filter rod adsorption grooves 11 on the filter rod.

[0023] In the above scheme, the adsorption hole group 3 and the air distribution hole group 4 on the wheel core 2 are at least partially connected to form an airflow channel, and the cross-sectional area of ​​this airflow channel is the connection area. An external negative pressure air source is connected to the hollow cavity inside the wheel core 2, and outside air is continuously drawn in through the airflow channel, thereby generating an adsorption force to adsorb the filter rod into the filter rod adsorption groove 11. According to the principles of fluid mechanics, the change in the connection area directly affects the flow rate and pressure of the negative pressure airflow. When the connection area increases, the adsorption force increases accordingly; conversely, when the connection area decreases, the adsorption force decreases. In order to adjust the connection area between the adsorption hole group 3 and the air distribution hole group 4, it can be achieved by the relative movement of the wheel body 1 and the wheel core 2, and also by the relative axial movement of the wheel body 1 and the wheel core 2. By the relative rotation or relative axial movement of the wheel body 1 and the wheel core 2, the connection area between the adsorption hole group 3 and the air distribution hole group 4 changes, thereby achieving the purpose of adjusting the magnitude of the adsorption force.

[0024] With the above settings, without adjusting the external negative pressure air source, the communication area between the adsorption hole group 3 and the air distribution hole group 4 can be adjusted by adjusting the relative position of the wheel body 1 and the wheel core 2, thus achieving flexible control of the adsorption force and adapting to filter rods of different specifications. This avoids blockage caused by multiple filter rods being simultaneously adsorbed into the same filter rod adsorption groove 11 due to excessive adsorption force, preventing shutdown of the cigarette machine equipment and improving production efficiency.

[0025] like Figure 2 and Figure 3 As shown, in one possible embodiment, the adsorption hole group 3 includes a first adsorption hole group 31 and a second adsorption hole group 32, and each filter rod adsorption groove 11 is provided with either the first adsorption hole group 31 or the second adsorption hole group 32. The air distribution hole group 4 includes a first air distribution hole group 41 and a second air distribution hole group 42. The first adsorption hole group 31 and the second adsorption hole group 32 are alternately arranged in two adjacent filter rod adsorption grooves 11; the first air distribution hole group 41 and the second air distribution hole group 42 are staggered upwards along the circumference of the wheel core. The cigarette filter rod cutting drum wheel includes the following two states: In the first state, the first adsorption pore group 31 is at least partially connected to the first gas distribution pore group 41, and the second adsorption pore group 32 is at least partially connected to the second gas distribution pore group 42. In the second state, the first adsorption pore group 31 and the second gas distribution pore group 42 are at least partially connected, and the second adsorption pore group 32 and the first gas distribution pore group 41 are at least partially connected; and the total connected area of ​​the adsorption pore group 3 and the gas distribution pore group 4 in the first state is different from the total connected area of ​​the adsorption pore group 3 and the gas distribution pore group 4 in the second state.

[0026] By changing the relative angle between wheel 1 and wheel core 2, the first and second states of the cigarette filter cutting drum are switched. Since the total connected area is different in the first and second states, the adsorption force on the filter rod is also different, thus allowing for the matching of filter rods of different specifications.

[0027] For ease of description, the first adsorption hole group 31 will be referred to as A, and the second adsorption hole group 32 as B. In the above embodiment, the first adsorption hole group 31 and the second adsorption hole group 32 are alternately arranged in the circumferential direction of the wheel body 1 (i.e., ABABAB pattern). It can be understood that the arrangement of the first adsorption hole group 31 and the second adsorption hole group 32 in the circumferential direction of the wheel body 1 can also be that multiple first adsorption hole groups 31 are arranged as one group and multiple second adsorption hole groups 32 are arranged as another group, alternating; for example, AABBAABB or AAABBBAAABBB, etc.

[0028] The arrangement of the first air distribution port group 41 and the second air distribution port group 42 is the same.

[0029] In one possible implementation, the first adsorption hole group 31 includes a plurality of first adsorption holes 311 spaced apart along the axial direction of the wheel body 1. The second adsorption hole group 32 includes a plurality of second adsorption holes 321 spaced apart along the axial direction of the wheel body 1, the arrangement of the second adsorption holes 321 being different from the arrangement of the first adsorption holes 311. The pore diameter of the first adsorption holes 311 is the same as the pore diameter of the second adsorption holes 321. The number of first adsorption holes 311 is the same as the number of second adsorption holes 321.

[0030] The first air distribution hole group 41 includes a plurality of first air distribution holes 411 spaced apart along the axial direction of the wheel core 2, and the arrangement of the first air distribution holes 411 is the same as the arrangement of the first adsorption holes 311. The second air distribution hole group 42 includes a plurality of second air distribution holes 421 spaced apart along the axial direction of the wheel core 2, and the arrangement of the second air distribution holes 421 is the same as the arrangement of the second adsorption holes 321. The diameter of the first air distribution holes 411 is the same as the diameter of the second air distribution holes 421. The number of first air distribution holes 411 is the same as the number of second air distribution holes 421.

[0031] In the above scheme, the first adsorption hole group 31 and the first air distribution hole group 41 adopt the same arrangement, and the second adsorption hole group 32 and the second air distribution hole group 42 adopt the same arrangement, but the arrangement between the two adsorption hole groups 3 is different. When the wheel body 1 and the wheel core 2 rotate relative to each other, in the first state, the first adsorption hole group 31 and the first air distribution hole group 41 can achieve maximum alignment, and the second adsorption hole group 32 and the second air distribution hole group 42 can also achieve maximum alignment; in the second state, the first adsorption hole group 31 and the second air distribution hole group 42, and the second adsorption hole group 32 and the first air distribution hole group 41 can only achieve partial alignment due to the difference in arrangement. This arrangement design ensures that the total connected area is significantly different in the two states, thereby achieving the effect of adjusting the adsorption force. Moreover, the number of first adsorption holes 311 is the same as the number of second adsorption holes 321, which can make the adsorption force relatively uniformly distributed in the circumferential direction of the entire wheel body.

[0032] In one possible implementation, along the axial direction of the wheel body 1, the position of at least one first adsorption hole 311 is aligned with the position of at least one second adsorption hole 321; the positions of the remaining first adsorption holes 311 are relatively offset from the positions of the remaining second adsorption holes 321.

[0033] like Figure 4 and Figure 5 As shown, on the axial direction of the wheel body 1, some of the first adsorption holes 311 and the second adsorption holes 321 are aligned, while the remaining holes are misaligned. Figure 4 and Figure 5Hollow holes represent adsorption holes that are fully connected to their corresponding air distribution holes, while solid holes represent adsorption holes that are partially connected to or not connected to their corresponding air distribution holes. When the cigarette filter drum is in the first state, the connectivity of the adsorption holes is as follows: Figure 4 As shown; when the cigarette filter drum is in the second state, the connectivity of the adsorption pores is as follows. Figure 5 As shown.

[0034] This specific arrangement design ensures that when the wheel body 1 and the wheel core 2 rotate relative to each other to switch states, the aligned adsorption holes can always maintain complete communication with the corresponding air distribution holes; while the misaligned adsorption holes maintain complete communication with the corresponding air distribution holes in the first state, and are partially or not connected in the second state.

[0035] In one possible implementation, the arrangement of the first adsorption holes 311 is symmetrical about the central plane of the wheel body 1 perpendicular to its axis, and the arrangement of the second adsorption holes 321 is symmetrical about the central plane of the wheel body 1 perpendicular to its axis. This arrangement ensures a balanced distribution of adsorption force along the axial direction of the wheel body 1, preventing the filter rod from deflecting or vibrating due to uneven force during cutting, thereby significantly improving the flatness of the cut end face.

[0036] In one possible implementation, the wheel body 1 is provided with a first positioning part 5 and a second positioning part 6, and the wheel core 2 is provided with a third positioning part 7; or, the wheel core 2 is provided with a first positioning part 5 and a second positioning part 6, and the wheel body 1 is provided with a third positioning part 7. When the first positioning part 5 and the third positioning part 7 cooperate, the cigarette filter cutting drum is in a first state. When the second positioning part 6 and the third positioning part 7 cooperate, the cigarette filter cutting drum is in a second state.

[0037] The above configuration ensures the accuracy and consistency of the cigarette filter cutting drum when switching between the first and second states, avoiding fluctuations in adsorption force due to uncertain positioning. In this embodiment, the first positioning part 5, the second positioning part 6, and the third positioning part 7 are all through holes, and a positioning pin enables a detachable connection between the first positioning part 5 and the third positioning part 7, or between the second positioning part 6 and the third positioning part 7. It is understood that the three positioning parts can also be configured to be detachably connected using other methods such as snap-fits or tenons.

[0038] In one possible implementation, the wheel body 1 includes a first limiting part 12, and the wheel core 2 includes a second limiting part 21. After the wheel body 1 is fitted onto the wheel core 2, the first limiting part 12 and the second limiting part 21 abut against each other to limit the position of the wheel body 1 along the axial direction of the wheel core 2. This design effectively prevents axial movement of the wheel body 1 during operation, improving overall stability and reliability. Furthermore, it ensures the axial alignment accuracy of the adsorption holes and the air distribution holes, thereby maintaining a stable adsorption force and avoiding fluctuations or failures in adsorption force due to axial displacement of the wheel body 1.

[0039] In one possible implementation, the filter rod adsorption groove 11 is provided with a cutting groove 13 extending circumferentially along the wheel body 1 and penetrating the bottom of the groove. The cutting groove 13 provides passage space for a cutter that passes through the filter rod adsorption groove 11, so that the cutter can cut the filter rod adsorbed in the filter rod adsorption groove 11. In this embodiment, there are three cutting grooves 13, and the three cutting grooves 13 are evenly distributed along the axial direction of the wheel body 1.

[0040] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0041] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.

[0042] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.

Claims

1. A cigarette filter rod cutting drum, characterized in that, include: The wheel body (1) has a filter rod adsorption groove (11) extending along the axial direction of the wheel body (1) on its outer periphery; a plurality of the filter rod adsorption grooves (11) are distributed at intervals along the circumference of the wheel body (1); each filter rod adsorption groove (11) is provided with an adsorption hole group (3) penetrating the wheel body (1). A wheel core (2) is coaxially arranged with the wheel body (1), and its outer diameter is adapted to the inner diameter of the wheel body (1). The wheel core (2) is rotatably inserted into the wheel body (1). The wheel core (2) has a hollow cavity inside for connecting to an external negative pressure air source. The wheel core (2) has a group of air distribution holes (4) that are spaced apart along the circumference of the wheel core (2) and penetrate the wheel core (2). The adsorption hole group (3) is at least partially connected to the group of air distribution holes (4). By driving the wheel body (1) and / or the wheel core (2), the communication area between the adsorption hole group (3) and the air distribution hole group (4) can be changed to adjust the adsorption force of the filter rod adsorption groove (11) on the filter rod.

2. The cigarette filter rod cutting drum according to claim 1, characterized in that, The adsorption pore group (3) includes a first adsorption pore group (31) and a second adsorption pore group (32), and each of the filter rod adsorption grooves (11) is provided with a first adsorption pore group (31) or a second adsorption pore group (32); the gas distribution pore group (4) includes a first gas distribution pore group (41) and a second gas distribution pore group (42). The cigarette filter rod cutting drum has the following two states: In the first state, the first adsorption pore group (31) is at least partially connected to the first gas distribution pore group (41), and the second adsorption pore group (32) is at least partially connected to the second gas distribution pore group (42). In the second state, the first adsorption pore group (31) is at least partially connected to the second gas distribution pore group (42), and the second adsorption pore group (32) is at least partially connected to the first gas distribution pore group (41). The total connected area of ​​the adsorption pore group (3) and the gas distribution pore group (4) in the first state is different from the total connected area of ​​the adsorption pore group (3) and the gas distribution pore group (4) in the second state.

3. The cigarette filter rod cutting drum according to claim 2, characterized in that, The first adsorption pore group (31) and the second adsorption pore group (32) are alternately arranged in the adsorption grooves (11) of two adjacent filter rods. The first air distribution hole group (41) and the second air distribution hole group (42) are arranged alternately along the circumference of the wheel core (2).

4. The cigarette filter rod cutting drum according to claim 2, characterized in that, The first adsorption hole group (31) includes a plurality of first adsorption holes (311) spaced apart along the axial direction of the wheel body (1). The second adsorption hole group (32) includes a plurality of second adsorption holes (321) spaced apart along the axial direction of the wheel body (1), and the arrangement of the second adsorption holes (321) is different from the arrangement of the first adsorption holes (311); The pore size of the first adsorption pore (311) is the same as that of the second adsorption pore (321); the number of the first adsorption pore (311) is the same as the number of the second adsorption pore (321).

5. The cigarette filter rod cutting drum according to claim 4, characterized in that, The arrangement of the first adsorption holes (311) is symmetrical about the central plane of the wheel body (1) perpendicular to the axis of the wheel body (1), and the arrangement of the second adsorption holes (321) is symmetrical about the central plane of the wheel body (1) perpendicular to the axis of the wheel body (1).

6. The cigarette filter rod cutting drum according to claim 4, characterized in that, Along the axial direction of the wheel body (1), at least one of the first adsorption holes (311) is aligned with at least one of the second adsorption holes (321); the positions of the remaining first adsorption holes (311) are relatively offset from the positions of the remaining second adsorption holes (321).

7. The cigarette filter rod cutting drum according to claim 4, characterized in that, The first air distribution hole group (41) includes a plurality of first air distribution holes (411) spaced apart along the axial direction of the wheel core (2), and the arrangement of the first air distribution holes (411) is the same as the arrangement of the first adsorption holes (311). The second air distribution hole group (42) includes a plurality of second air distribution holes (421) spaced apart along the axial direction of the wheel core (2), and the arrangement of the second air distribution holes (421) is the same as the arrangement of the second adsorption holes (321); The diameter of the first air distribution hole (411) is the same as the diameter of the second air distribution hole (421); the number of the first air distribution holes (411) is the same as the number of the second air distribution holes (421).

8. The cigarette filter rod cutting drum according to claim 2, characterized in that, The wheel body (1) is provided with a first positioning part (5) and a second positioning part (6), and the wheel core (2) is provided with a third positioning part (7). Alternatively, the wheel core (2) is provided with a first positioning part (5) and a second positioning part (6), and the wheel body (1) is provided with a third positioning part (7). When the first positioning part (5) and the third positioning part (7) cooperate, the cigarette filter rod cutting drum is in the first state; When the second positioning part (6) cooperates with the third positioning part (7), the cigarette filter rod cutting drum is in the second state.

9. The cigarette filter rod cutting drum according to claim 1, characterized in that, The wheel body (1) includes a first limiting part (12), and the wheel core (2) includes a second limiting part (21). After the wheel body (1) is fitted onto the wheel core (2), the first limiting part (12) abuts against the second limiting part (21) to limit the position of the wheel body (1) along the axial direction of the wheel core (2).

10. The cigarette filter rod cutting drum according to claim 1, characterized in that, The filter rod adsorption groove (11) is provided with a cutting groove (13) that extends circumferentially along the wheel body (1) and penetrates the bottom of the filter rod adsorption groove (11); the cutting groove (13) is used to provide passage space for the cutter that passes through the filter rod adsorption groove (11) so that the cutter can cut the filter rod adsorbed in the filter rod adsorption groove (11).

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