Longitudinal cutting equipment

Abstract

The longitudinal cutting equipment comprises an equipment shell, a material distributing mechanism, a guide groove and a longitudinal cutting mechanism, the material distributing mechanism comprises a material distributing rotating shaft, an elastic piece, a clamping piece, a sleeve and a driving piece, the material distributing rotating shaft is provided with a plurality of groups of material distributing grooves, the sizes of openings of the material distributing grooves in the same group are the same, and the sizes of openings of the material distributing grooves in different groups are different. An elastic piece and a clamping piece are arranged at one end of the material distributing rotating shaft, the sleeve is rotationally arranged on the periphery of the material distributing rotating shaft in a sleeving mode, a plurality of material distributing through holes are formed in the periphery of the sleeve at intervals, the opening size of the material distributing through holes is larger than the size of the largest opening in the multiple openings, and the multiple material distributing through holes can communicate with the multiple material distributing grooves in the same group in a one-to-one correspondence mode; and an end plate is arranged at one end of the sleeve, a plurality of clamping holes distributed at intervals are formed in the end plate, when the clamping pieces are clamped to the different clamping holes, the material distribution through holes communicate with the different groups of material distribution grooves, and the size of cigarettes suitable for material distribution of the longitudinal cutting equipment can be changed through simple operation.

Description

Technical Field

[0001] This utility model relates to the field of cigarette manufacturing technology, and in particular to a longitudinal cutting device. Background Technology

[0002] In the cigarette manufacturing process, slitting equipment is typically used to separate the produced cigarettes, arranging them one by one before slitting each cigarette. Specifically, this involves setting multiple slitting slots, each sized to fit the shape of the cigarette, on the slitting shaft of the equipment. Each slot can only hold one cigarette. By rotating the shaft, the cigarettes falling into the slots sequentially under gravity into inclined guide troughs, thus arranging them one by one. However, the slitting mechanism in related technologies can only slitting cigarettes of one diameter. If it is necessary to slitting cigarettes of other sizes, at least a slitting shaft with slitting slots of that size must be purchased, and professional operators are required to disassemble the original shaft and install the new one, which is difficult and time-consuming. Utility Model Content

[0003] The purpose of this utility model is to provide a longitudinal cutting device that can change the size of cigarettes suitable for material cutting through simple operation.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A longitudinal slitting device is provided, comprising:

[0006] The equipment housing has a feeding chamber, a conveying chamber, and a longitudinal cutting chamber that are sequentially distributed and connected along the direction of gravity;

[0007] The material dispensing mechanism includes a dispensing shaft, an elastic element, a snap-fit ​​element, a sleeve, and a driving element. The dispensing shaft is located at the connection between the feeding chamber and the conveying chamber. The dispensing shaft has multiple groups of dispensing grooves, each forming an opening on its surface. The openings of grooves in the same group are the same size, while the openings of grooves in different groups are different sizes. Dispensing grooves of different sizes are distributed at intervals along the outer circumference of the dispensing shaft. One end of the dispensing shaft has the elastic element, and the snap-fit ​​element is connected to the end of the elastic element facing outwards from the dispensing shaft. A sleeve is rotatably fitted around the outer periphery of the material distributing shaft. The outer periphery of the sleeve is provided with a plurality of material distributing through holes spaced apart. The opening size of the material distributing through holes is larger than the size of the largest opening among the plurality of openings. The plurality of material distributing through holes can be connected one-to-one with a plurality of material distributing slots in the same group. One end of the sleeve is provided with an end plate. The end plate is provided with a plurality of spaced-apart locking holes. When the locking member is locked into different locking holes, the material distributing through holes are connected to different groups of material distributing slots. The driving member is connected to the material distributing shaft or the sleeve. The driving member can drive the material distributing shaft and the sleeve to rotate as a whole around the central axis of the material distributing shaft.

[0008] A guide trough, one end of which is located in the feeding chamber, the guide trough being able to receive cigarettes falling from the dispensing trough, and the other end of which is located in the longitudinal cutting chamber; and...

[0009] A longitudinal cutting mechanism is provided in the longitudinal cutting cavity, which is capable of cutting the cigarette on the guide groove.

[0010] As a preferred technical solution of the slitting device, the slitting device further includes a first limiting member and a second limiting member. The first limiting member is rotatably connected to the end of the material distribution shaft away from the end plate via a bearing. The second limiting member is rotatably connected to the end plate via another bearing. At least one of the first limiting member and the second limiting member is threadedly connected to the device housing, and the first limiting member can rotate relative to the device housing to move closer to or away from the other.

[0011] As a preferred technical solution of the slitting device, a third limiting member is provided at one end of the material distribution shaft near the end plate, and the end plate is provided with a limiting hole corresponding to the third limiting member. The limiting hole is an arc-shaped hole extending around the central axis of the material distribution shaft, and the third limiting member is slidably inserted into the limiting hole.

[0012] As a preferred technical solution of the slitting device, the snap-fit ​​end of the snap-fit ​​member has a guide surface, and the dimension of the snap-fit ​​end along the direction surrounding the central axis of the material distribution shaft is smaller the further away from the material distribution shaft.

[0013] As a preferred technical solution of the slitting device, the snap-fit ​​end also has a locking surface, which is perpendicular to the central axis of the material distribution shaft;

[0014] The driving component is connected to the dispensing shaft, and the locking surface is located on one side of the guide surface along the rotation direction of the dispensing shaft; or...

[0015] The drive component is connected to the sleeve, and the guide surface is located on one side of the locking surface along the rotation direction of the dispensing shaft.

[0016] As a preferred technical solution of the slitting device, the end of the material distribution shaft near the end plate is provided with a receiving groove, the elastic element is disposed in the receiving groove, and the elastic element can extend and retract along the depth direction of the receiving groove, and the snap-fit ​​part is located in the receiving groove.

[0017] As a preferred technical solution of the slitting device, the end plate is also provided with a clearance hole, and a drive shaft is rotatably inserted in the clearance hole. The two ends of the drive shaft are respectively connected to the material distribution shaft and the drive component.

[0018] As a preferred technical solution of the slitting device, the sleeve has a thickness t, where 1mm≤t≤2.5mm.

[0019] As a preferred technical solution of the longitudinal cutting device, among the plurality of material distribution grooves, the minimum width dimension of the opening of the material distribution groove is d1, the maximum width dimension of the opening of the material distribution groove is d2, the minimum width of the guide groove is d3, and d1 < d2 < d3 < 2d1.

[0020] As a preferred technical solution of the longitudinal cutting device, the device housing is further provided with a connecting window communicating with the feed chamber. The connecting window is located on one side of the sleeve in the radial direction. The longitudinal cutting device also includes a cover plate, which is movably disposed in the device housing and can cover the connecting window.

[0021] The beneficial effects of this utility model are as follows:

[0022] By including a dispensing shaft and a sleeve in the dispensing mechanism, multiple dispensing slots are set on the dispensing shaft. The opening size of the dispensing slots in the same group is the same, while the opening size of the dispensing slots in different groups is different, and the dispensing slots of different sizes are distributed in sequence at intervals. The outer circumference of the sleeve is provided with multiple dispensing through holes at intervals. The multiple dispensing through holes can be connected one-to-one with the multiple dispensing slots in the same group. Thus, by simply rotating the sleeve, the dispensing slots of different groups can be exposed, while the dispensing slots of other groups are covered at the same time, so as to change the size of the cigarettes that the dispensing mechanism is suitable for dispensing. The operation process is simple.

[0023] Furthermore, by setting an elastic element at one end of the distributing shaft, and connecting a snap-fit ​​element to the end of the elastic element facing outwards from the distributing shaft, and providing a snap-fit ​​hole on the end plate at one end of the sleeve, the distributing through hole connects to different groups of distributing slots when the snap-fit ​​element snaps into different snap-fit ​​holes. This allows the relative position of the sleeve and the distributing shaft to be limited by the snap-fit ​​element engaging with the snap-fit ​​slots, ensuring that the sleeve remains in a state where only one group of distributing slots is connected to the opening during operation. On the other hand, since only an external force needs to be applied to compress the elastic element and move it out of the snap-fit ​​hole, the snap-fit ​​relationship between the snap-fit ​​element and the snap-fit ​​hole can be established, allowing the sleeve to rotate relative to the distributing shaft. In other words, the unlocking operation of the locking structure of the elastic element, snap-fit ​​element, and snap-fit ​​hole is simple, making it easy for operators to adjust the size of the cigarettes to be dispensed by the distributing mechanism. Attached Figure Description

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a three-dimensional structural diagram of the longitudinal cutting device described in the embodiment.

[0026] Figure 2 for Figure 1 A partial cross-sectional view of the longitudinal cutting device is shown.

[0027] Figure 3 This is an exploded view of the material distribution mechanism described in the embodiment.

[0028] Figure 4 This is a cross-sectional schematic diagram of the material distribution mechanism described in the embodiment.

[0029] Figure 5 This is a schematic diagram of the material distribution mechanism (when the snap-fit ​​component has a locking surface) as described in the embodiment, viewed from the angle of the end plate.

[0030] In the picture:

[0031] 1. Equipment casing; 10. Feeding chamber; 11. Feeding cavity; 12. Longitudinal cutting cavity; 13. Connecting window; 14. Cover plate;

[0032] 2. Material distribution mechanism; 20. Material distribution shaft; 201. Material distribution groove; 202. Opening; 203. Receiving groove; 204. Third limiting component; 21. Elastic component; 22. Snap-fit ​​component; 220. Guide surface; 221. Locking surface; 23. Sleeve; 230. Material distribution through hole; 231. End plate; 231a. Snap hole; 231b. Limiting hole; 231c. Clearance hole;

[0033] 3. Guide groove;

[0034] 4. Longitudinal cutting mechanism;

[0035] 5. Handle. Detailed Implementation

[0036] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0037] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0039] like Figures 1 to 4As shown, this utility model provides a longitudinal cutting device, including a device housing 1, a material distribution mechanism 2, a guide groove 3, and a longitudinal cutting mechanism 4. The device housing 1 has a feeding chamber 10, a feeding chamber 11, and a longitudinal cutting chamber 12 that are sequentially distributed and connected along the direction of gravity G. The material distribution mechanism 2 includes a material distribution shaft 20, an elastic element 21, a snap-fit ​​element 22, a sleeve 23, and a driving element (not shown in the figure). The material distribution shaft 20 is located at the connection between the feeding chamber 10 and the feeding chamber 11, and the material distribution shaft 20 is provided with... There are multiple sets of material distribution grooves 201, each forming an opening 202 on the surface of the material distribution shaft 20. The openings 202 of multiple material distribution grooves 201 in the same set are of the same size, while the openings 202 of material distribution grooves 201 in different sets are of different sizes. Material distribution grooves 201 of different sizes are distributed sequentially at intervals along the outer circumference of the material distribution shaft 20. One end of the material distribution shaft 20 is provided with an elastic element 21, and a snap-fit ​​element 22 is connected to the end of the elastic element 21 facing outwards from the material distribution shaft 20. The sleeve 23 is rotatably fitted around the outer periphery of the material distribution shaft 20. Multiple material distribution through holes 230 are spaced apart on the outer periphery of the sleeve 23. The opening size of each material distribution through hole 230 is larger than the size of the largest opening 202 among the multiple openings 202. Each of the multiple material distribution through holes 230 can be connected one-to-one to multiple material distribution slots 201 in the same group. One end of the sleeve 23 is provided with an end plate 231, which has multiple spaced-apart locking holes 231a. The locking member 22 engages with different locking holes 231a. In step 1a, the material distribution through hole 230 is connected to the material distribution grooves 201 of different groups. The driving component is connected to the material distribution shaft 20 or the sleeve 23. The driving component can drive the material distribution shaft 20 and the sleeve 23 to rotate around the central axis of the material distribution shaft 20. One end of the guide groove 3 is located in the feeding chamber 11. The guide groove 3 can receive the cigarettes falling from the material distribution groove 201. The other end of the guide groove 3 is located in the longitudinal cutting chamber 12. The longitudinal cutting mechanism 4 is located in the longitudinal cutting chamber 12. The longitudinal cutting mechanism 4 can cut the cigarettes on the guide groove 3.

[0040] By including a dispensing shaft 20 and a sleeve 23 in the dispensing mechanism 2, multiple dispensing grooves 201 are provided on the dispensing shaft 20. The opening 202 of the dispensing grooves 201 in the same group has the same size, while the opening 202 of the dispensing grooves 201 in different groups has different sizes. The dispensing grooves 201 of different sizes are distributed in sequence at intervals. Multiple dispensing through holes 230 are provided at intervals on the outer periphery of the sleeve 23. The multiple dispensing through holes 230 can be connected one-to-one with the multiple dispensing grooves 201 in the same group. Thus, by simply rotating the sleeve 23, the dispensing grooves 201 in different groups can be exposed, while the dispensing grooves 201 in other groups can be covered at the same time. This allows the size of the cigarettes that the dispensing mechanism 2 is suitable for dispensing to be changed. The operation process is simple.

[0041] Furthermore, by providing an elastic element 21 at one end of the distributing shaft 20, and connecting a snap-fit ​​element 22 to the end of the elastic element 21 facing outwards from the distributing shaft 20, and providing a snap-fit ​​hole 231a on the end plate 231 at one end of the sleeve 23, the distributing through hole 230 connects to different sets of distributing grooves 201 when the snap-fit ​​element 22 snaps into different snap-fit ​​holes 231a. This allows the relative position of the sleeve 23 and the distributing shaft 20 to be limited by the snap-fit ​​element 22 engaging with the grooves, ensuring that the sleeve 23 remains stationary during operation of the distributing mechanism 2. In the state where only one fixed group of feeding slots 201 is connected to the opening 202, on the other hand, since only an external force is applied to compress the elastic member 21 and move it out of the locking hole 231a, the locking relationship between the locking member 22 and the locking hole 231a can be contacted, so that the sleeve 23 can rotate relative to the feeding shaft 20. In other words, the unlocking operation of the locking structure of the elastic member 21, the locking member 22 and the locking hole 231a is simple, so the operation of the operator to adjust the size of the cigarettes to be fed by the feeding mechanism 2 is simple.

[0042] in, Figure 4 The example shows a material distribution shaft 20 having three groups of material distribution grooves 201, each group including two material distribution grooves 201. In other embodiments, the material distribution shaft 20 may also have two, four, five or more groups of material distribution grooves 201, each group may also include three, four, five or more material distribution grooves 201.

[0043] Optionally, the material distribution shaft 20 is provided with a receiving groove 203 at one end near the end plate 231. The elastic element 21 is located in the receiving groove 203 and can extend and retract along the depth direction of the receiving groove 203. The locking element 22 is partially located in the receiving groove 203. Thus, the deformation direction of the elastic element 21 can be restricted by the receiving groove 203, thereby improving the controllability of the movement direction of the locking element 22. This makes the function stability of the locking element 22 being able to re-engage with the locking hole 231a after disengaging from the locking hole 231a better.

[0044] Optionally, the slitting device further includes a first limiting member (not shown in the figure) and a second limiting member (not shown in the figure). The first limiting member is rotatably connected to the end of the material distribution shaft 20 away from the end plate 231 via a bearing, and the second limiting member is rotatably connected to the end plate 231 via another bearing. At least one of the first and second limiting members is threadedly connected to the device housing 1, and this one can rotate relative to the device housing 1 to move closer to or away from the other, thereby enabling the first limiting member and the second limiting member to move closer together to achieve the desired effect. The material distribution shaft 20 and the end plate 231 of the sleeve 23 are pressed together axially to further restrict the relative posture of the material distribution shaft 20 and the sleeve 23. When the material distribution mechanism 2 is working, the sleeve 23 can be more stably kept in a state where only one fixed part of the material distribution groove 201 is connected to the opening 202. When it is necessary to adjust the relative posture of the sleeve 23 and the material distribution shaft 20, the end plate 231 of the material distribution shaft 20 and the sleeve 23 can be loosened axially by moving the first limiting member and the second limiting member away from each other.

[0045] Optionally, the end of the first limiting member away from the material distribution shaft 20 extends out of the equipment housing 1, and a handle 5 is connected to this end of the first limiting member, so that the user can rotate the handle 5 from the outside of the longitudinal cutting equipment to bring the first limiting member closer to or away from the second limiting member.

[0046] Optionally, the end of the material distribution shaft 20 near the end plate 231 is also provided with a third limiting member 204, and the end plate 231 is also provided with a limiting hole 231b corresponding to the third limiting member 204. The limiting hole 231b is an arc-shaped hole extending around the central axis of the material distribution shaft 20. The third limiting member 204 is slidably inserted into the limiting hole 231b, so that the relative rotation stroke of the material distribution shaft 20 and the sleeve 23 can be limited by the cooperation between the third limiting member 204 and the limiting hole 231b. That is, the angle range of relative rotation between the material distribution shaft 20 and the sleeve 23 is limited. On the one hand, this can prevent the relative rotation range between the sleeve 23 and the material distribution shaft 20 from being too large and causing excessive wear during the adjustment process. On the other hand, the third limiting member 204 cooperates with the limiting hole 231b to enhance the limiting effect on the relative posture of the sleeve 23 and the material distribution shaft 20, so that the relative posture of the sleeve 23 and the material distribution shaft 20 is more stable when the material distribution mechanism 2 is working.

[0047] The sleeve 23 has a thickness t. The larger the thickness t, the greater the depth of the opening 202 of the sleeve 23, and the greater the possibility of accommodating multiple cigarettes at the opening 202 at the same time. Therefore, the smaller the thickness t, the better. However, if the thickness t is too small, it will result in poor structural strength of the sleeve 23. Therefore, the thickness t cannot be too small. Based on this, the thickness t can optionally satisfy: 1mm≤t≤2.5mm. For example, the thickness t can be 1mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 1.9mm, 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm or 2.5mm, etc.

[0048] Among the multiple material distribution grooves 201, the minimum width dimension of the opening 202 of the material distribution groove 201 is d1, the maximum width dimension of the opening 202 of the material distribution groove 201 is d2, and the minimum width of the guide groove 3 is d3. In order to make the guide groove 3 suitable for transporting cigarettes of all sizes distributed by the material distribution mechanism 2, the minimum width d3 of the guide groove 3 must be greater than or equal to d2. Furthermore, in order to avoid the cigarettes distributed by the material distribution mechanism 2 forming a side-by-side posture in the guide groove 3, the minimum width d3 of the guide groove 3 must be less than twice d1. Based on this, optionally, the widths d1, d2, and d3 can satisfy: d1 < d2 ≤ d3 < 2d1.

[0049] Optionally, there can be multiple elastic elements 21 and snap-fit ​​elements 22. Multiple snap-fit ​​elements 22 are arranged at intervals around the central axis of the material distribution shaft 20. The snap-fit ​​holes 231a on the end plate 231 are the product of the number of snap-fit ​​elements 22 and the number of a set of material distribution grooves 201. In this way, by increasing the number of snap-fit ​​elements 22, the stability of the limiting effect of the relative posture of the sleeve 23 and the material distribution shaft 20 by snapping the snap-fit ​​elements 22 with the snap-fit ​​holes 231a can be improved.

[0050] Optionally, the snap-fit ​​end (not labeled in the figure) of the snap-fit ​​member 22 has a guide surface 220, which may be, but is not limited to, an inclined surface or a curved surface. The dimension of the snap-fit ​​end along the direction surrounding the central axis of the dispensing shaft 20 is smaller the further away from the dispensing shaft 20. Thus, when the sleeve 23 is rotated relative to the dispensing shaft 20, the wall of the snap-fit ​​hole 231a can be made to abut against the guide surface 220 to apply a force inclined toward the dispensing shaft 20 to the snap-fit ​​member 22, thereby pushing the snap-fit ​​member 22 toward the dispensing shaft 20. In other words, the operator only needs to forcefully rotate the sleeve 23 relative to the dispensing shaft 20 to unlock the sleeve 23 from the dispensing shaft 20 without the operator having to manually push the snap-fit ​​member 22. This makes it easier for the operator to adjust the size of the cigarettes dispensed by the dispensing mechanism 2.

[0051] Please combine Figure 4 and Figure 5As shown, optionally, the snap-fit ​​end also has a locking surface 221, which is perpendicular to the central axis of the dispensing shaft 20. The locking surface 221 is located on one side of the guide surface 220 along the rotation direction S of the dispensing shaft 20. The driving member is connected to the dispensing shaft 20. The locking surface 221 is located on one side of the guide surface 220 along the rotation direction S of the dispensing shaft 20. Thus, when the driving member drives the dispensing shaft 20 to rotate, the locking surface 221 abuts against the wall of the snap-fit ​​hole 231a, so that the snap-fit ​​member 22 will not be subjected to a reaction force toward the elastic member 21. This design allows for greater stability in the relative posture of the sleeve 23 and the distributing shaft 20 during the operation of the distributing mechanism 2. Alternatively, the driving component is connected to the sleeve 23, and the guiding surface 220 is located on one side of the locking surface 221 along the rotation direction S of the distributing shaft 20. Thus, when the driving component drives the sleeve 23 to rotate, the locking surface 221 abuts against the wall of the locking hole 231a, preventing the locking member 22 from experiencing a reaction force towards the elastic member 21. This further stabilizes the relative posture of the sleeve 23 and the distributing shaft 20 during the operation of the distributing mechanism 2. Figure 5 The example shows a structure of the end plate 231 and the snap-fit ​​member 22 when the locking surface 221 is located on one side of the guide surface 220 along the rotation direction S of the dispensing shaft 20.

[0052] In other embodiments, the snap-fit ​​end may not have a locking surface 221. When the drive member drives the material distribution shaft 20 or the sleeve 23 to rotate, the elastic member 21 can apply a resisting force to the snap-fit ​​member 22 to keep the relative posture of the sleeve 23 and the material distribution shaft 20 stable.

[0053] When the drive unit is connected to the material distribution shaft 20, the end plate 231 is optionally provided with a clearance hole 231c. A drive shaft (not shown in the figure) is rotatably inserted in the clearance hole 231c. The two ends of the drive shaft are respectively connected to the material distribution shaft 20 and the drive unit, thereby avoiding interference between the drive shaft and the end plate 231.

[0054] Please see again. Figure 1 and Figure 3 Optionally, the equipment housing 1 is also provided with a connecting window 13 connected to the feeding chamber 10. The connecting window 13 is located on one side of the sleeve 23 in the radial direction. The longitudinal cutting device also includes a cover plate 14, which is movably disposed in the equipment housing 1 and can cover the connecting window 13. Thus, by moving the cover plate 14 relative to the equipment housing 1, the connecting window 13 can be exposed, allowing the operator to rotate the sleeve 23 and the distributing shaft 20 relative to each other through the connecting window 13 to adjust the size of the cigarettes that the distributing mechanism 2 is suitable for distributing, without disassembling the equipment housing 1. The operation of adjusting the size of the cigarettes that the distributing mechanism 2 is suitable for distributing is simpler for the operator.

[0055] For example, the cover plate 14 is rotatably or push-pullably connected to the equipment housing 1, or the cover plate 14 is detachably connected to the equipment housing 1, wherein the cover plate 14 can be detachably connected to the equipment housing 1 by means including but not limited to snap-fit ​​and threaded connection.

[0056] It should be noted that the longitudinal cutting mechanism 4 can be any existing mechanism capable of cutting cigarettes in the guide groove 3, including a cutting tool. The specific structure of the longitudinal cutting mechanism 4 is not specifically limited in this embodiment.

[0057] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings, and are used only for ease of description and simplification of operation. They 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 utility model. Furthermore, the terms "first" and "second" are merely used for distinction in description and have no special meaning.

[0058] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0059] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0060] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without any inventive effort, and these embodiments will all fall within the scope of protection of this utility model.

Claims

1. A slitting apparatus characterized by, The longitudinal cutting device comprises: a device housing, which has a feeding cavity, a feeding cavity and a longitudinal cutting cavity arranged in sequence along the direction of gravity and communicated with each other; a material distribution mechanism, which comprises a material distribution shaft, an elastic element, a clamping element, a sleeve and a driving element, the material distribution shaft is arranged at the communication position of the feeding cavity and the feeding cavity, a plurality of groups of material distribution grooves are arranged on the material distribution shaft, the material distribution grooves form openings on the surface of the material distribution shaft, the openings of the plurality of material distribution grooves in the same group are of the same size, the openings of the material distribution grooves in different groups are of different sizes, the material distribution grooves of different sizes are arranged in sequence and spaced apart along the direction of surrounding the outer periphery of the material distribution shaft, one end of the material distribution shaft is provided with the elastic element, one end of the elastic element away from the material distribution shaft is connected with the clamping element, the sleeve is rotatably sleeved on the outer periphery of the material distribution shaft, a plurality of material distribution through holes are arranged on the outer periphery of the sleeve in a spaced apart manner, the opening size of the material distribution through hole is larger than the size of the largest opening in the plurality of openings, the plurality of material distribution through holes can be one-to-one correspondingly communicated with the plurality of material distribution grooves in the same group, one end of the sleeve is provided with an end plate, the end plate is provided with a plurality of clamping holes arranged in a spaced apart manner, when the clamping element is clamped in different clamping holes, the material distribution through hole is communicated with the material distribution grooves in different groups, the driving element is connected with the material distribution shaft or the sleeve, and the driving element can drive the material distribution shaft and the sleeve to rotate as a whole around the central axis of the material distribution shaft; a guide groove, one end of the guide groove is located in the feeding cavity, the guide groove can receive the cigarettes falling from the material distribution groove, and the other end of the guide groove is located in the longitudinal cutting cavity; and a longitudinal cutting mechanism, which is arranged in the longitudinal cutting cavity and can cut the cigarettes on the guide groove. The longitudinal cutting device further comprises a first limiting element and a second limiting element, the first limiting element is rotatably connected to one end of the material distribution shaft away from the end plate through a bearing, the second limiting element is rotatably connected to the end plate through another bearing, at least one of the first limiting element and the second limiting element is threadedly connected to the device housing, and the one can rotate relative to the device housing to approach or move away from the other.

2. The slitting apparatus of claim 1, wherein, One end of the material distribution shaft close to the end plate is further provided with a third limiting element, the end plate is further provided with a limiting hole corresponding to the third limiting element, the limiting hole is an arc-shaped hole extending around the central axis of the material distribution shaft, and the third limiting element is slidably fitted and inserted into the limiting hole.

3. The slitting apparatus of claim 1 wherein, The clamping end of the clamping element has a guide surface, and the size of the clamping end in the direction around the central axis of the material distribution shaft is smaller away from the material distribution shaft.

4. The slitting apparatus of claim 1 wherein, The clamping end further has a locking surface, and the locking surface is perpendicular to the central axis of the material distribution shaft.

5. The slitting apparatus of claim 4 wherein, The driving element is connected to the material distribution shaft, and the locking surface is located on one side of the guide surface in the direction of rotation of the material distribution shaft; or The driving element is connected to the sleeve, and the guide surface is located on one side of the locking surface in the direction of rotation of the material distribution shaft. ​ 6. Slitting apparatus according to any of claims 1-5, characterized in that The end of the distributing shaft close to the end plate is provided with a containing groove, the elastic member is arranged in the containing groove, and the elastic member can extend and retract along the depth direction of the containing groove.

7. Slitting apparatus according to any of claims 1-5, characterized in that The end plate is further provided with an avoiding hole, a transmission shaft is rotatably arranged in the avoiding hole, and two ends of the transmission shaft are connected to the distributing shaft and the driving member respectively.

8. Slitting apparatus according to any of claims 1-5, characterized in that The sleeve has a thickness t, and 1mm≤t≤2.5mm.

9. Slitting apparatus according to any of claims 1-5, characterized in that In the plurality of distributing grooves, the minimum width size of the opening of the distributing groove is d1, the maximum width size of the opening of the distributing groove is d2, the minimum width of the guide groove is d3, d1 10. Slitting apparatus according to any of claims 1-5, characterized in that The device shell is further provided with a communication window communicated with the feeding cavity, the communication window is located on one side of the sleeve in the radial direction, and the longitudinal cutting device further comprises a cover plate, the cover plate is movably arranged on the device shell, and the cover plate can cover the communication window.

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