Grinding wheel grinding system and tobacco cutter

Abstract

The utility model provides a grinding wheel grinding system and a tobacco cutter. The grinding wheel grinding system is used for grinding a shredding cutter of the tobacco cutter and comprises a grinding wheel, a grinding wheel shaft, a grinding wheel shaft, a grinding wheel shaft and a grinding wheel shaft, and the grinding wheel shaft is of a cylindrical structure with one end open; and the gas supply system comprises a nozzle, and the nozzle is arranged in the cylindrical structure and is configured to be connected with a gas source so as to spray gas to the inner wall of the cylindrical structure. The tobacco cutter comprises a shredding cutter and the grinding wheel grinding system. According to the grinding wheel grinding system and the tobacco cutter, the phenomenon that tobacco soot is accumulated in the grinding wheel can be improved, and the probability of potential technological hazards and potential safety hazards is reduced.

Description

Technical Field

[0001] The present invention relates to the field of tobacco processing equipment, and in particular to a grinding wheel grinding system and a tobacco shredder. Background Art

[0002] The shredding process is a key process in the tobacco shredding production line. The quality of shredding is strongly related to the grinding effect of the shredder blade. It is of great significance to improve the shredder sharpening system and optimize the grinding effect of the shredder grinding wheel.

[0003] The grinding wheels of most tobacco cutters are cylindrical in structure. In actual operation, the following problems exist: when the grinding wheel rotates at high speed to grind the end face, the ground tobacco dust and soot will accumulate inside the cylindrical structure. During the production process, the soot accumulates more and more, and adheres to the blade edge with the moisture of the material, forming a soot layer, which causes the blade edge and the grinding surface to slip, affecting the grinding effect and reducing the quality of the cut. The soot produced is also easy to fall off and form tobacco clumps, which poses a process hazard; after the production is completed, the accumulated tobacco dust and soot are prone to smoldering, which poses a safety hazard. Utility Model Content

[0004] The purpose of the present disclosure is to provide a grinding wheel grinding system and a tobacco shredder to improve the phenomenon of tobacco scale accumulation inside the grinding wheel and reduce the probability of process hazards and safety hazards.

[0005] A first aspect of the present disclosure provides a grinding wheel grinding system for grinding a tobacco cutting tool of a tobacco cutting machine, comprising:

[0006] A grinding wheel, which is a cylindrical structure with one end open, and the grinding wheel is rotatably arranged around the axis of the cylindrical structure; and

[0007] The gas supply system comprises a nozzle, wherein the nozzle is arranged in the cylindrical structure and is configured to be connected to a gas source so as to spray gas toward the inner wall of the cylindrical structure.

[0008] According to some embodiments of the present disclosure, the further comprising:

[0009] A transmission shaft connected to the grinding wheel and configured to drive the grinding wheel to rotate; and

[0010] A fixed sleeve assembly is sleeved on the radially outer side of the transmission shaft and enclosed with the transmission shaft to form an air supply chamber for connecting to the air source. The transmission shaft is rotatably arranged relative to the fixed sleeve assembly. A fluid channel is arranged inside the transmission shaft, and the nozzle and the air supply chamber are connected through the fluid channel.

[0011] According to some embodiments of the present disclosure, the fixing sleeve assembly includes:

[0012] Fixed sleeve; and

[0013] A plurality of support rings are arranged side by side along the axial direction of the transmission shaft, each of the support rings cooperates with the circumferential surface of the transmission shaft and is supported between the fixing sleeve and the transmission shaft along the radial direction of the transmission shaft.

[0014] According to some embodiments of the present disclosure, the support ring is made of graphite.

[0015] According to some embodiments of the present disclosure,

[0016] The fixing sleeve comprises a fixing sleeve body and two end covers, and the two end covers are respectively arranged at two ends of the fixing sleeve body along the axial direction of the transmission shaft;

[0017] The fixed sleeve assembly also includes two sealing rings and / or two dust rings which are sleeved on the radial outer side of the transmission shaft and arranged corresponding to the two end covers. The two sealing rings are respectively pressed onto the fixed sleeve body through the corresponding end covers, and the two dust rings are respectively pressed onto the fixed sleeve body through the corresponding end covers.

[0018] According to some embodiments of the present disclosure, the further comprising:

[0019] A clamping ring, disposed in the air supply cavity and matched with the circumferential surface of the transmission shaft;

[0020] A force-applying component is arranged in the air supply cavity, and the first end of the force-applying component along the axial direction of the transmission shaft acts on the clamping ring so that the clamping ring abuts against the cavity wall of the air supply cavity along the axial direction of the first end of the transmission shaft, and the second end of the force-applying component along the axial direction of the transmission shaft acts on the cavity wall of the air supply cavity along the axial direction of the transmission shaft.

[0021] According to some embodiments of the present disclosure, the force applying component includes:

[0022] A first working sleeve abuts against the clamping ring;

[0023] a second function sleeve abutting against a cavity wall of a second end of the air supply cavity along the axial direction of the transmission shaft and forming a gap with the first function sleeve along the axial direction of the transmission shaft; and

[0024] The elastic member has two ends connected to the first action sleeve and the second action sleeve respectively.

[0025] According to some embodiments of the present disclosure, the air inlet of the fluid channel is arranged to correspond to the interval between the first active sleeve and the second active sleeve along the axial direction of the transmission shaft.

[0026] According to some embodiments of the present disclosure, from the radial inside to the radial outside of the clamping ring, a surface of the cavity wall of the clamping ring facing the first end of the air supply cavity along the axial direction of the transmission shaft gradually approaches the force applying component.

[0027] According to some embodiments of the present disclosure, the compression ring is made of graphite.

[0028] According to some embodiments of the present disclosure, the jetting direction of the nozzle is adjustable.

[0029] According to some embodiments of the present disclosure, the gas supply system comprises:

[0030] a control valve, disposed upstream of the nozzle along the air flow direction, configured to adjust the on / off state of the air source and the nozzle; and / or

[0031] The filter is arranged upstream of the nozzle along the air flow direction and is configured to filter impurities in the gas provided by the gas source.

[0032] A second aspect of the present disclosure provides a tobacco cutter, comprising:

[0033] Slicing cutter; and

[0034] The first aspect of the present disclosure provides a grinding wheel grinding system.

[0035] In the grinding wheel grinding system provided by the present invention, a nozzle for connecting to an air source is arranged inside the cylindrical structure of the grinding wheel, and the nozzle can spray gas toward the inner wall of the cylindrical structure. On the one hand, it can play a purging role to reduce the existing smoke dust and soot residue inside the grinding wheel. On the other hand, positive pressure is formed inside the cylindrical structure to prevent new smoke dust and soot from entering the inside of the grinding wheel and accumulating inside the cylindrical structure.

[0036] Therefore, the grinding wheel grinding system can improve the fouling problem and ensure that the surface of the grinding wheel end used for grinding the shredding tool has sufficient friction, thereby ensuring the grinding effect. In addition, the grinding wheel grinding system is not likely to cause the soot to fall off and form tobacco clumps, which can reduce the probability of process hazards. It is also not likely to cause soot accumulation to cause smoldering, which can reduce the probability of safety hazards.

[0037] The tobacco cutter provided by the present disclosure has the advantages of the aforementioned grinding wheel grinding system.

[0038] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The drawings described herein are used to provide a further understanding of the present disclosure and constitute a part of the present application. The illustrative embodiments of the present disclosure and their descriptions are used to explain the present disclosure and do not constitute an improper limitation on the present disclosure. In the drawings:

[0040] Figure 1 It is a schematic diagram of the working state of the grinding wheel of the tobacco cutter in the related art.

[0041] Figure 2 It is a schematic structural diagram of a grinding wheel grinding system according to some embodiments of the present disclosure.

[0042] Figure 3 Schematic diagram of the structure of the grinding wheel grinding system of other embodiments of the present disclosure.

[0043] Figures 1 to 3 In the figure, each reference numeral represents:

[0044] 1. Grinding wheel; 10. Wheel body; 11. First flange; 2. Nozzle; 3. Transmission shaft; 30. Shaft body; 31. Fluid channel; 32. Second flange; 4. Fixed sleeve assembly; 41. Fixed sleeve; 411. First end cover; 412. Second end cover; 413. Outer sleeve; 414. First sleeve; 415. Second sleeve; 421. First supporting ring; 422. Second supporting ring; 43. Sealing ring; 44. Dustproof ring; 45. Positioning ring; 51. Control valve; 52. Filter; 53. Pressure reducing valve; 6. Clamping ring; 7. Force-applying component; 71. First action sleeve; 72. Second action sleeve; 73. Elastic member; 8. Motor; 9. Slicer; C. Air supply chamber; P. Cigarette powder; T. Conveying device. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present disclosure. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, these technologies, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0047] In the description of the present disclosure, it should be understood that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0048] In the description of the present disclosure, it is necessary to understand that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words 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 cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0049] refer to Figures 1 to 3 Some embodiments of the present disclosure provide a grinding wheel grinding system for grinding a cutting tool 9 of a tobacco cutting machine.

[0050] Figure 1 It shows the state in the related art that when the grinding wheel 1 grinds the shredding cutter 9, the ground tobacco dust P gathers inside the cylindrical structure of the grinding wheel.

[0051] The disclosed grinding wheel grinding system comprises a grinding wheel 1 and an air supply system. The grinding wheel 1 is a cylindrical structure with one end open, and the grinding wheel 1 is rotatably arranged around the axis of the cylindrical structure. The air supply system comprises a nozzle 2, which is arranged in the cylindrical structure and is configured to be connected to an air source to spray gas toward the inner wall of the cylindrical structure.

[0052] Optionally, the gas provided by the gas source is compressed air.

[0053] In the grinding wheel grinding system provided by the embodiment of the present disclosure, a nozzle 2 for connecting to an air source is arranged inside the cylindrical grinding wheel 1, and the nozzle 2 can spray gas toward the inner wall of the cylindrical structure. On the one hand, it can play a purging role to reduce the existing smoke dust and soot residue inside the grinding wheel 1. On the other hand, positive pressure is formed inside the cylindrical structure to prevent new smoke dust and soot from entering the interior of the grinding wheel 1 and accumulating inside the cylindrical structure.

[0054] Therefore, the grinding wheel grinding system can improve the fouling problem and ensure that the surface of the grinding wheel end used for grinding the shredding tool 9 has sufficient friction, thereby ensuring the grinding effect. In addition, the grinding wheel grinding system is not likely to cause the soot to fall off and form tobacco clumps, which can reduce the probability of process hazards. It is also not likely to cause soot accumulation to cause smoldering, which can reduce the probability of safety hazards.

[0055] In some embodiments, reference Figure 2 and Figure 3 The grinding wheel grinding system further includes a transmission shaft 3 and a fixed sleeve assembly 4. The transmission shaft 3 is connected to the grinding wheel 1 and is configured to drive the grinding wheel 1 to rotate. The fixed sleeve assembly 4 is sleeved on the radial outer side of the transmission shaft 3 and encloses the transmission shaft 3 to form an air supply chamber C for connecting to an air source. The transmission shaft 3 is rotatably arranged relative to the fixed sleeve assembly 4. A fluid channel 31 is arranged inside the transmission shaft 3, and the nozzle 2 and the air supply chamber C are connected through the fluid channel 31.

[0056] Optionally, the air inlet of the air supply cavity C is opened on the fixed sleeve assembly 4 and connected to the air supply pipeline, and the air inlet of the fluid channel 31 is opened on the circumferential surface of the transmission shaft 3. Optionally, the fluid channel 31 is L-shaped.

[0057] Optionally, refer to Figure 2 The grinding wheel 1 includes a wheel body 10 and a first flange 11, the transmission shaft 3 includes a shaft body 30 and a second flange 32, and the grinding wheel 1 and the transmission shaft 3 are connected by a flange structure formed by the first flange 11 and the second flange 32. Optionally, refer to Figure 2 and Figure 3 The grinding wheel grinding system includes a motor 8, which is drivingly connected to the transmission shaft 3. The motor 8 drives the transmission shaft 3 to rotate, thereby driving the grinding wheel 1 to rotate.

[0058] In the above embodiment, during the process of the grinding wheel 1 grinding the wire cutting tool 9, the air source and the fixed sleeve assembly 4 remain fixed and connected to the air supply chamber C, and the air inlet of the fluid channel 31 rotates with the transmission shaft 3. During the rotation, the air inlet of the fluid channel 31 always remains connected to the air supply chamber C, so that the air source can stably and reliably introduce gas for blowing the inner wall of the cylindrical structure into the fluid channel 31.

[0059] Furthermore, the combined structure formed by the transmission shaft 3 and the fixed sleeve assembly 4 is an external structure of the grinding wheel 1, so the grinding wheel grinding system of the above form can be applied to tobacco shredders of different models, such as Figure 2 The KT series tobacco cutter shown and Figure 3 The RC series tobacco cutter shown, Figure 2 and Figure 3 The structure of the fixed sleeve assembly 4 is basically the same, and the size of the transmission shaft 3 can be adaptively adjusted according to the model of the tobacco cutter, which is interchangeable and convenient.

[0060] In some embodiments, reference Figure 2 and Figure 3 The fixing sleeve assembly 4 includes a fixing sleeve 41 and a plurality of supporting rings. The plurality of supporting rings are arranged side by side along the axial direction of the transmission shaft 3, each supporting ring cooperates with the circumferential surface of the transmission shaft 3, and is supported between the fixing sleeve 41 and the transmission shaft 3 along the radial direction of the transmission shaft 3.

[0061] Optionally, refer to Figure 2 and Figure 3 The plurality of support rings include a first support ring 421 and a second support ring 422. The first support ring 421 and the second support ring 422 are respectively located at the first end and the second end of the fixed sleeve 41 along the axial direction of the transmission shaft 3. The first support ring 421 is embedded in the fixed sleeve 41, and the second support ring 422 is arranged on the inner side of the fixed sleeve 41. The radial outer circumferential surface and the radial inner circumferential surface of the second support ring 422 are respectively matched with the fixed sleeve 41 and the transmission shaft 3.

[0062] In the above embodiment, each supporting ring is cooperatively connected to the circumferential surface of the transmission shaft 3 , which not only provides good support for the fixing sleeve 41 , but also provides a certain sealing effect on the air supply cavity C.

[0063] In some embodiments, the support ring is made of graphite.

[0064] In the above embodiment, during the rotation of the transmission shaft 3 relative to the fixed sleeve assembly 4, the support ring made of graphite can play a lubricating role, reduce the friction between the transmission shaft 3 and the fixed sleeve assembly 4, thereby reducing the wear of both and ensuring the sealing effect of the air supply chamber C.

[0065] In some embodiments, reference Figure 2 and Figure 3The fixed sleeve 41 includes a fixed sleeve body and two end covers, and the two end covers are respectively arranged at the two ends of the fixed sleeve body along the axial direction of the transmission shaft 3. The fixed sleeve assembly 4 also includes two sealing rings 43 and two dust rings 44 which are sleeved on the radial outer side of the transmission shaft 3 and corresponding to the two end covers. The two sealing rings 43 are respectively pressed on the fixed sleeve body through the corresponding end covers, and the two dust rings 44 are respectively pressed on the fixed sleeve body through the corresponding end covers.

[0066] Optionally, refer to Figure 2 and Figure 3 The two end covers include a first end cover 411 and a second end cover 412. The first end cover 411 is disposed at the first end of the fixed sleeve body along the axial direction of the transmission shaft 3, that is, Figure 2 and Figure 3 The second end cover 412 is disposed at the second end of the fixed sleeve body along the axial direction of the transmission shaft 3, that is, Figure 2 and Figure 3 The middle is located at the lower end.

[0067] Optionally, refer to Figure 2 The fixing sleeve body includes an outer sleeve body 413, a first sleeve body 414 and a second sleeve body 415. The first end cover 411 is connected to the first sleeve body 414 by bolts. A groove required for accommodating the second support ring 422 is formed between the first sleeve body 414 and the second sleeve body 415. The first end and the second end of the outer sleeve body 413 along the axial direction of the transmission shaft 3 are respectively connected to the second sleeve body 415 and the second end cover 412 by bolts. Optionally, the fixing sleeve 41 also includes a positioning ring 45, which is arranged between the second end cover 412 and the second support ring 422 along the axial direction of the transmission shaft 3, and is used to position the second support ring 422 along the axial direction of the transmission shaft 3.

[0068] In the above embodiment, the sealing effect of the air supply chamber C can be improved by providing the sealing ring 43, and the dustproof ring 44 can be prevented from entering the air supply chamber C during grinding.

[0069] In some embodiments, reference Figure 2 and Figure 3 The grinding wheel grinding system also includes a clamping ring 6 and a force-applying component 7. The clamping ring 6 is arranged in the air supply cavity C and cooperates with the circumferential surface of the transmission shaft 3. The force-applying component 7 is arranged in the air supply cavity C, and the first end of the force-applying component 7 along the axial direction of the transmission shaft 3 acts on the clamping ring 6, so that the clamping ring 6 abuts against the cavity wall of the air supply cavity C at the first end along the axial direction of the transmission shaft 3, and the second end of the force-applying component 7 along the axial direction of the transmission shaft 3 acts on the cavity wall of the air supply cavity C at the second end along the axial direction of the transmission shaft 3.

[0070] In the above embodiment, the clamping ring 6 cooperates with the circumferential surface of the transmission shaft 3, and the force-applying component 7 can press the clamping ring 6 against the cavity wall of the first end of the air supply cavity C along the axial direction of the transmission shaft 3, so that the clamping ring 6 is tightly fitted with the corresponding cavity wall on the air supply cavity C. Based on the matching relationship between the clamping ring 6 and the transmission shaft 3 and the clamping effect of the force-applying component 7 on the clamping ring 6, the sealing of the air supply cavity C can be further improved. On the one hand, it can prevent dust and other debris outside the air supply cavity C from entering the air supply cavity. On the other hand, it can also enable the air supply cavity C to maintain sufficient gas pressure, thereby ensuring the purging effect of the nozzle 2.

[0071] In some embodiments, reference Figure 2 and Figure 3 The force-applying component 7 includes a first action sleeve 71, a second action sleeve 72 and an elastic member 73. The first action sleeve 71 abuts against the clamping ring 6. The second action sleeve 72 abuts against the cavity wall of the second end of the air supply cavity C along the axial direction of the transmission shaft 3, and forms a gap with the first action sleeve 71 along the axial direction of the transmission shaft 3. Both ends of the elastic member 73 are connected to the first action sleeve 71 and the second action sleeve 72 respectively.

[0072] In some embodiments, reference Figure 2 and Figure 3 The air inlet of the fluid channel 31 is arranged corresponding to the interval between the first active sleeve 71 and the second active sleeve 72 along the axial direction of the transmission shaft 3 .

[0073] In the above embodiment, the interval between the first active sleeve 71 and the second active sleeve 72 along the axial direction of the transmission shaft 3 can form an escape space, which can allow the air inlet of the fluid channel 31 to intake air stably, thereby ensuring the purging effect of the nozzle 2.

[0074] In some embodiments, reference Figure 2 and Figure 3 From the radial inside to the radial outside of the clamping ring 6 , the surface of the cavity wall of the clamping ring 6 at the first end along the axial direction of the transmission shaft 3 facing the air supply cavity C gradually approaches the force-applying component 7 .

[0075] The surface of the cavity wall of the clamping ring 6 facing the air supply cavity C along the axial direction of the transmission shaft 3 can be a flat surface or a curved surface, for example Figure 2 and Figure 3 The curved surface shown.

[0076] In the above embodiment, the clamping ring 6 can form a sealing structure similar to a conical surface seal with the cavity wall of the first axial end of the air supply cavity C along the axial direction of the transmission shaft 3, thereby maintaining good sealing performance.

[0077] In some embodiments, the clamping ring 6 is made of graphite.

[0078] In the above embodiment, during the rotation of the transmission shaft 3 relative to the fixed sleeve assembly 4, the clamping ring 6 made of graphite can play a lubricating role, reduce the friction between the transmission shaft 3 and the clamping ring 6, thereby reducing the wear of both and ensuring the sealing effect of the air supply chamber C.

[0079] In some embodiments, the jet direction of the nozzle 2 is adjustable.

[0080] In the above embodiment, the nozzle 2 can perform targeted blowing on multiple positions inside the grinding wheel 1, which is beneficial to further improve the cleaning effect of tobacco dust and soot, thereby further improving the grinding effect of the grinding wheel on the wire cutting tool 9 and improving the wire cutting quality.

[0081] In some embodiments, reference Figure 2 and Figure 3 The gas supply system includes a control valve 51 and / or a filter 52. The control valve 51 is arranged upstream of the nozzle 2 along the airflow direction, and is configured to adjust the on-off state of the gas source and the nozzle 2. The filter 52 is arranged upstream of the nozzle 2 along the airflow direction, and is configured to filter impurities in the gas provided by the gas source.

[0082] Optionally, the air supply system further includes a pressure reducing valve 53, and the pressure reducing valve 53, the filter 52 and the control valve 51 are sequentially arranged along the air flow direction. Optionally, the control valve 51 is a solenoid valve, and the control valve 51 can control the air source to be connected to the nozzle 2 in response to the start signal of the tobacco cutter, and control the air source to be disconnected from the nozzle 2 in response to the stop signal of the tobacco cutter, so as to continuously replenish gas into the air supply chamber C when the grinding wheel 1 and the cutting tool 9 are working, or maintain the air pressure in the air supply chamber C when the grinding wheel 1 and the cutting tool 9 stop working.

[0083] In the above embodiment, by providing the filter 52, the risk of impurities such as particulate matter in the gas entering the interior of the cylindrical structure through the nozzle 2 can be reduced, thereby reducing the risk of impurities adhering to the inner wall of the cylindrical structure.

[0084] Some embodiments of the present disclosure further provide a tobacco shredder, comprising a shredder tool 9 and a grinding wheel grinding system provided by an embodiment of the present disclosure.

[0085] The tobacco cutter provided by the embodiment of the present disclosure has the advantages of the aforementioned grinding wheel grinding system.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present disclosure rather than to limit it. Although the present disclosure has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present disclosure can still be modified or some technical features can be replaced by equivalents, which should all be included in the scope of the technical solution for protection requested by the present disclosure.

Claims

1. A grinding wheel grinding system for grinding a tobacco cutting tool (9) of a tobacco cutting machine, characterized in that: include: The grinding wheel (1) is a cylindrical structure with one end open, and the grinding wheel (1) is rotatably arranged around the axis of the cylindrical structure; and The gas supply system comprises a nozzle (2), wherein the nozzle (2) is arranged in the cylindrical structure and is configured to be connected to a gas source so as to spray gas toward the inner wall of the cylindrical structure.

2. The grinding wheel grinding system according to claim 1, characterized in that: Also includes: A transmission shaft (3) connected to the grinding wheel (1) and configured to drive the grinding wheel (1) to rotate; and A fixed sleeve assembly (4) is sleeved on the radial outer side of the transmission shaft (3) and enclosed with the transmission shaft (3) to form an air supply chamber (C) for connecting to the air source. The transmission shaft (3) is rotatably arranged relative to the fixed sleeve assembly (4). A fluid channel (31) is arranged inside the transmission shaft (3), and the nozzle (2) and the air supply chamber (C) are connected through the fluid channel (31).

3. The grinding wheel grinding system according to claim 2, characterized in that: The fixing sleeve assembly (4) comprises: a fixing sleeve (41); and A plurality of support rings are arranged side by side along the axial direction of the transmission shaft (3); each support ring cooperates with the circumferential surface of the transmission shaft (3) and is supported between the fixing sleeve (41) and the transmission shaft (3) along the radial direction of the transmission shaft (3).

4. The grinding wheel grinding system according to claim 3, characterized in that: The support ring is made of graphite.

5. The grinding wheel grinding system according to claim 3, characterized in that: The fixing sleeve (41) comprises a fixing sleeve body and two end covers, wherein the two end covers are respectively arranged at two ends of the fixing sleeve body along the axial direction of the transmission shaft (3); The fixing sleeve assembly (4) further comprises two sealing rings (43) and / or two dust rings (44) which are sleeved on the radial outer side of the transmission shaft (3) and arranged corresponding to the two end covers, the two sealing rings (43) are respectively pressed onto the fixing sleeve body through the corresponding end covers, and the two dust rings (44) are respectively pressed onto the fixing sleeve body through the corresponding end covers.

6. The grinding wheel grinding system according to claim 2, characterized in that: Also includes: A clamping ring (6) is disposed in the air supply cavity (C) and cooperates with the circumferential surface of the transmission shaft (3); A force-applying component (7) is arranged in the air supply cavity (C), and the first end of the force-applying component (7) along the axial direction of the transmission shaft (3) acts on the clamping ring (6) so that the clamping ring (6) abuts against the cavity wall of the air supply cavity (C) at the first end along the axial direction of the transmission shaft (3), and the second end of the force-applying component (7) along the axial direction of the transmission shaft (3) acts on the cavity wall of the air supply cavity (C) at the second end along the axial direction of the transmission shaft (3).

7. The grinding wheel grinding system according to claim 6, characterized in that: The force applying component (7) comprises: A first operating sleeve (71) abuts against the clamping ring (6); A second functional sleeve (72) abuts against a cavity wall of a second end of the air supply cavity (C) along the axial direction of the transmission shaft (3), and is spaced apart from the first functional sleeve (71) along the axial direction of the transmission shaft (3); and The elastic member (73) has two ends respectively connected to the first action sleeve (71) and the second action sleeve (72).

8. The grinding wheel grinding system according to claim 7, characterized in that: The air inlet of the fluid channel (31) is arranged corresponding to the interval between the first action sleeve (71) and the second action sleeve (72) along the axial direction of the transmission shaft (3).

9. The grinding wheel grinding system according to claim 6, characterized in that: From the radial inside to the radial outside of the clamping ring (6), the surface of the cavity wall of the clamping ring (6) at the first end along the axial direction of the transmission shaft (3) facing the air supply cavity (C) gradually approaches the force-applying component (7).

10. The grinding wheel grinding system according to claim 6, characterized in that: The clamping ring (6) is made of graphite.

11. The grinding wheel grinding system according to any one of claims 1 to 10, characterized in that: The jetting direction of the nozzle (2) is adjustable.

12. The grinding wheel grinding system according to any one of claims 1 to 10, characterized in that: The gas supply system comprises: a control valve (51), arranged upstream of the nozzle (2) along the air flow direction, configured to adjust the on-off state of the air source and the nozzle (2); and / or The filter (52) is arranged upstream of the nozzle (2) along the air flow direction and is configured to filter impurities in the gas provided by the gas source.

13. A tobacco cutting machine, characterized in that: include: Slicing cutter (9); and A grinding wheel grinding system according to any one of claims 1 to 12.

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