Tobacco wheel body mechanism, cigarette air suction chamber and cigarette making and connecting equipment

Abstract

The utility model relates to a tobacco wheel body mechanism, a cigarette air suction chamber and cigarette rolling and connecting equipment, the tobacco wheel body mechanism is used for installing a cut tobacco suction belt, the tobacco wheel body mechanism comprises an installation shaft (1), a rotation shaft (2) and a rotation shaft (3), the installation shaft (1) comprises a shaft body (11), and the shaft body (11) extends in the preset direction (x); the wheel body (2) is installed at the first end of the shaft body (11), the wheel body (2) and the shaft body (11) are coaxially arranged, and the cut tobacco suction belt is installed on the peripheral face of the wheel body (2); the bearing (3) is connected between the first end of the shaft body (11) and the wheel body (2); and the sealing assembly (4) is arranged on the side, away from the second end of the shaft body (11), of the wheel body (2), and the sealing assembly (4) is configured to form a sealing area for containing the bearing (3) with the wheel body (2).

Description

Technical Field

[0001] The present invention relates to the field of cigarette production, and in particular to a tobacco wheel mechanism, a cigarette suction chamber and a cigarette rolling and joining device. Background Art

[0002] The belt suction channel at the tail wheel of the belt suction wire is connected with the secondary air separation device. The tobacco after the secondary air separation is transported forward through this place, and enters the rolling and forming system after passing through the leveling disk mechanism. The secondary air separation is carried out by suspended air separation. The smoke dust contained in the tobacco stems at the secondary separation place floats upward into the suction chamber due to its light weight, and enters the dust removal room through the negative pressure system.

[0003] The existing tail wheel structure has poor sealing and cannot ensure effective sealing of the bearing, causing a large amount of smoke and dust to gather around the bearing. During the high-speed rotation of the bearing, the smoke and dust enter the bearing, causing the bearing bushing and ball to wear, causing the bearing to fail and making it impossible to ensure the normal operation of the equipment. Utility Model Content

[0004] The embodiments of the present disclosure provide a tobacco wheel mechanism, a cigarette suction chamber and a cigarette rolling device, which can improve the sealing degree of the tobacco wheel mechanism.

[0005] According to a first aspect of the present disclosure, a tobacco wheel body mechanism is provided for installing a suction ribbon, and the tobacco wheel body mechanism comprises:

[0006] The installation shaft comprises a shaft body, and the shaft body extends along a preset direction;

[0007] The wheel body is mounted on the first end of the shaft body and is coaxially arranged with the shaft body, and the suction wire is mounted on the outer peripheral surface of the wheel body;

[0008] A bearing connected between the first end of the shaft and the wheel body; and

[0009] The sealing assembly is arranged on a side of the wheel body away from the second end of the shaft body, and the sealing assembly is configured to form a sealing area for accommodating the bearing with the wheel body.

[0010] In some embodiments, the first end of the shaft body is located on the inner side of the wheel body along the preset direction, and the second end of the shaft body is located on the outer side of the wheel body along the preset direction.

[0011] In some embodiments, a stepped hole groove is coaxially arranged inside the wheel body, and the stepped hole groove comprises:

[0012] A through hole is provided on one side of the wheel body close to the second end of the shaft body, and the shaft body passes through the through hole;

[0013] A first groove body is provided on a side of the wheel body away from the second end of the shaft body, and the first groove body is configured to accommodate a sealing assembly; and

[0014] A second groove body, which is cylindrical and connected between the through hole and the first groove body, is configured to accommodate a bearing;

[0015] The size of the first slot body is larger than that of the second slot body, and the size of the second slot body is larger than that of the through hole.

[0016] In some embodiments, the outer ring of the bearing is interference fit with the circumferential side wall of the second groove body, and the inner ring of the bearing is interference fit with the outer side wall of the first end of the shaft body.

[0017] In some embodiments, the mounting shaft further includes a protrusion coaxially arranged with the shaft body, the radial dimension of the protrusion is larger than the shaft body, the protrusion passes through the through hole, and the protrusion is radially spaced a first preset distance from the inner wall of the through hole.

[0018] In some embodiments, a side of the protrusion close to the first end of the shaft body abuts against the inner ring of the bearing, and an axial side wall of the second groove body abuts against the outer ring of the bearing.

[0019] In some embodiments, the sealing assembly includes a sealing cover mounted on the wheel body.

[0020] In some embodiments, the projection of the sealing cover along a preset direction is circular, and the sealing assembly also includes a sealing ring, which is coaxially arranged with the sealing cover and located at the center of the sealing cover. The sealing ring and the sealing cover are radially spaced a second preset distance, and the sealing ring is installed at the first end of the shaft body.

[0021] In some embodiments, the outer end surface of the sealing cover is flush with the end surface of the wheel body, at least part of the inner end surface of the sealing cover abuts against the outer ring of the bearing, and the sealing ring abuts against the inner ring of the bearing.

[0022] In some embodiments, a groove portion is provided on the outer circumferential surface of the wheel body, the bottom surface of the groove portion is used to accommodate the suction wire, and the side wall of the groove portion is inclined.

[0023] According to a second aspect of the present disclosure, a cigarette suction chamber is provided, comprising:

[0024] a wind chamber body; and

[0025] In the tobacco wheel mechanism of the above embodiment, the second end of the shaft is connected to the air chamber body.

[0026] According to a third aspect of the present disclosure, a cigarette rolling and joining device is provided, comprising the tobacco wheel mechanism of the above embodiment, or the cigarette suction chamber of the above embodiment.

[0027] Based on the above technical solution, the tobacco wheel mechanism of the disclosed embodiment can improve the sealing degree of the tobacco wheel mechanism by setting a sealing component, reduce the impact of smoke on the bearing, extend the service life of the bearing, and ensure the normal operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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:

[0029] Figure 1 sectional views of some embodiments of the tobacco wheel mechanism disclosed herein.

[0030] Figure 2 sectional views of some embodiments of the mounting shaft of the tobacco wheel mechanism of the present disclosure.

[0031] Figure 3 sectional views of some embodiments of the wheel body of the tobacco wheel body mechanism of the present disclosure.

[0032] Figure 4 It is a schematic structural diagram of some embodiments of the sealing cover of the tobacco wheel mechanism disclosed in the present invention.

[0033] Figure 5 sectional views of some embodiments of the sealing cover of the tobacco wheel mechanism of the present disclosure.

[0034] Description of Reference Numerals

[0035] 1. Installation shaft; 2. Wheel body; 3. Bearing; 4. Sealing assembly; 11. Shaft body; 12. Protrusion; 20. Through hole; 21. First groove body; 22. Second groove body; 23. Groove part; 41. Sealing cover; 42. Sealing ring; x, preset direction. DETAILED DESCRIPTION

[0036] The present disclosure is described in detail below. In the following paragraphs, different aspects of the embodiments are defined in more detail. Each aspect so defined can be combined with any other aspect or aspects, unless explicitly stated not to be combined. In particular, any feature that is considered to be preferred or advantageous can be combined with one or more other features that are considered to be preferred or advantageous.

[0037] The terms "first", "second", etc. that appear in the present disclosure are only for the convenience of description to distinguish different components with the same name, and do not indicate a sequence or a primary and secondary relationship.

[0038] In the description of the present disclosure, it should be understood that the terms "inside", "outside", "up", "down", "left", "right", "front" or "rear" etc. indicating directions or positional relationships are defined based on a wheel body or an axle body etc., and are only for the convenience of describing the present disclosure, and do not indicate or imply that the device referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the scope of protection of the present disclosure.

[0039] The suction chamber is a very important part of the suction wire forming system. The suction chamber uses nylon suction wire, which has a large suction area. The suction wire driving wheel is the main driving wheel of the suction wire. It drives the suction wire wheel to operate synchronously through the synchronous pulley installed at the rear. The suction wire wheel and the suction wire driving wheel form a dual active driving mechanism of the suction wire. At the same time, they are tensioned by cylinders. The working pressure of the cylinder is generally set to 2.5×103Pa. The suction wire is not easy to slip. At the same time, in addition to the two suction wire driving wheels, there are five suction wire driven wheels, which constitute the transmission mechanism of the suction wire.

[0040] During the research process, the inventor found that the existing tail wheel is equipped with two bearings, and the tail wheel structure is not designed with end covers, which cannot effectively ensure the sealing of the bearings, causing a large amount of smoke and dust to gather around the bearings. During the high-speed rotation of the bearings, the smoke and dust enter the bearings and cause the bearings to fail. At the same time, the bearings at the tail wheel are small in size and are subjected to unidirectional radial force. During the high-speed operation of the bearings, the bearings are prone to wear and failure.

[0041] In order to solve at least one of the above technical problems, the present disclosure provides a tobacco wheel body mechanism for installing a suction belt. Specifically, the tobacco wheel body mechanism is used in the suction belt forming process of a cigarette rolling and splicing device VE, and can be used to replace the suction chamber wheel body, such as the tail wheel, etc. In some exemplary embodiments, as Figures 1 to 5 As shown, the tobacco wheel body mechanism includes:

[0042] The installation shaft 1 comprises a shaft body 11, and the shaft body 11 extends along a preset direction x;

[0043] The wheel body 2 is mounted on the first end of the shaft body 11 and is coaxially arranged with the shaft body 11, and the suction wire is mounted on the outer peripheral surface of the wheel body 2;

[0044] A bearing 3 connected between the first end of the shaft 11 and the wheel 2; and

[0045] The sealing assembly 4 is disposed on a side of the wheel body 2 away from the second end of the shaft body 11 . The sealing assembly 4 is configured to form a sealing area for accommodating the bearing 3 together with the wheel body 2 .

[0046] Specifically, the suction ribbon is a nylon ribbon responsible for feeding tobacco in the cigarette rolling process, and is mainly used for adsorbing and conveying tobacco. Specifically, only one bearing 3 is provided, and the single bearing design increases the bearing size relative to the double bearings, which can improve the durability of the bearing 3.

[0047] Optionally, the projection of the shaft body 11 along the preset direction x may be a circle, etc. Optionally, the projection of the sealing component 4 along the preset direction x may be a circle, or a polygon, etc.

[0048] The tobacco wheel mechanism of this embodiment is provided with a sealing assembly 4, so that the sealing degree of the tobacco wheel mechanism can be improved, the influence of smoke and dust on the bearing 3 can be reduced, the service life of the bearing 3 can be extended, and the normal operation of the equipment can be ensured.

[0049] In some embodiments, Figure 1 As shown, the first end of the shaft body 11 is located inside the wheel body 2 along the preset direction x, and the second end of the shaft body 11 is located outside the wheel body 2 along the preset direction x. Specifically, the second end of the shaft body 11 is connected to the air chamber body, for example, by threaded connection.

[0050] This embodiment prevents the bearing from being subjected to unidirectional radial force, reduces the degree of wear during high-speed operation of the bearing, and extends the service life of the bearing by locating the first end of the shaft body 11 on the inner side of the wheel body 2. At the same time, the first end of the shaft body 11 being located on the inner side of the wheel body 2 is also beneficial for providing structural space for improving the sealing of the tobacco wheel body mechanism.

[0051] In some embodiments, Figure 1 and Figure 3 As shown, a stepped hole groove is coaxially arranged inside the wheel body 2, and the stepped hole groove includes:

[0052] A through hole 20 is provided on one side of the wheel body 2 close to the second end of the shaft body 11, and the shaft body 11 passes through the through hole 20;

[0053] A first groove body 21 is provided on a side of the wheel body 2 away from the second end of the shaft body 11, and the first groove body 21 is configured to accommodate the sealing assembly 4; and

[0054] The second groove body 22 is cylindrical and connected between the through hole 20 and the first groove body 21 . The second groove body 22 is configured to accommodate the bearing 3 .

[0055] The size of the first slot body 21 is larger than that of the second slot body 22 , and the size of the second slot body 22 is larger than that of the through hole 20 .

[0056] Optionally, the projection of the through hole 20 along the preset direction x can be any shape, preferably, the shape of the projection of the through hole 20 along the preset direction x is the same as the shape of the projection of the shaft body 11 along the preset direction x. Optionally, the projection of the first slot body 21 along the preset direction x can be any shape.

[0057] This embodiment can provide space for the installation of the shaft 11, the bearing 3 and the sealing assembly 4 by coaxially arranging the stepped hole groove inside the wheel body, which is beneficial to further improve the sealing degree of the tobacco wheel body mechanism.

[0058] In some embodiments, the outer ring of the bearing 3 is interference fit with the circumferential side wall of the second groove body 22 , and the inner ring of the bearing 3 is interference fit with the outer side wall of the first end of the shaft body 11 .

[0059] In some embodiments, Figure 1 and Figure 2 As shown, the mounting shaft 1 further includes a protrusion 12 coaxially arranged with the shaft body 11, the radial dimension of the protrusion 12 is larger than the shaft body 11, the protrusion 12 passes through the through hole 20, and the protrusion 12 is radially spaced a first preset distance from the inner wall of the through hole 20. Optionally, the projection of the protrusion 12 along the preset direction x can be a circle or the like.

[0060] This embodiment can improve the sealing degree of the tobacco wheel mechanism, avoid friction between the wheel body 2 and the mounting shaft 1 during rotation, and limit the bearing 3 in the axial direction by providing a protrusion 12 radially spaced from the inner wall of the through hole 20 by a first preset distance.

[0061] In some embodiments, the side of the protrusion 12 close to the first end of the shaft body 11 abuts against the inner ring of the bearing 3, and the axial side wall of the second groove body 22 abuts against the outer ring of the bearing 3. Specifically, the axial side wall of the second groove body 22 is the side of the wheel body 2 facing the second end of the shaft body 11.

[0062] This embodiment cooperates with the protrusion 12 and the axial side wall of the second groove body 22 to axially position the side of the bearing 3 facing the second end of the shaft body 11, thereby preventing axial movement of the inner and outer rings of the bearing 3 during rotation, which aggravates the wear of the balls and extends the service life of the bearing 3.

[0063] In some embodiments, Figures 1 to 5 As shown, the sealing assembly 4 includes a sealing cover 41, and the sealing cover 41 is mounted on the wheel body 2. Optionally, the projection of the sealing cover 41 along the preset direction x can be circular or polygonal. Optionally, the sealing cover 41 can be mounted on the wheel body 2 by a plurality of screws arranged at intervals along the circumferential direction, for example, by three screws arranged at even intervals along the circumferential direction.

[0064] This embodiment can expand the coverage of the sealing cover 41 by providing the sealing cover 41 installed on the wheel body 2, improve the sealing degree of the tobacco wheel body mechanism, and extend the service life of the bearing 3.

[0065] In some embodiments, Figures 1 to 5 As shown, the projection of the sealing cover 41 along the preset direction x is circular, and the sealing assembly 4 also includes a sealing ring 42, which is coaxially arranged with the sealing cover 41 and located at the center of the sealing cover 41, and the sealing ring 42 and the sealing cover 41 are radially spaced a second preset distance apart, and the sealing ring 42 is installed at the first end of the shaft body 11.

[0066] Specifically, a through hole is provided at the center of the sealing cover 41 to provide space for installing the sealing ring 42. Optionally, the sealing ring 42 can be installed on the first end of the shaft body 11 by screws. Compared with the existing axial positioning method of the clamp ring, the screw positioning can prevent the wheel body 2 from axial movement.

[0067] This embodiment can improve the sealing degree of the tobacco wheel mechanism and avoid friction between the sealing cover 41 and the sealing ring 42 during the rotation of the wheel body 2 by providing a sealing ring 42 radially spaced from the sealing cover 41 by a second preset distance, and can also limit the bearing 3 in the axial direction; at the same time, the sealing ring 42 is installed at the first end of the shaft body 11 to avoid axial movement of the wheel body 2.

[0068] In some embodiments, Figure 1 As shown, the outer end surface of the sealing cover 41 is flush with the end surface of the wheel body 2, at least part of the inner end surface of the sealing cover 41 abuts against the outer ring of the bearing 3, and the sealing ring 42 abuts against the inner ring of the bearing 3. Specifically, the outer end surface of the sealing cover 41 can be a plane, and the inner end surface of the sealing cover 41 can be a step surface.

[0069] This embodiment cooperates with the sealing cover 41 and the sealing ring 42 to axially position the side of the second end of the bearing 3 away from the shaft body 11, thereby preventing the axial movement of the inner and outer rings of the bearing 3 during rotation, which aggravates the wear of the balls and prolongs the service life of the bearing 3.

[0070] In some embodiments, Figure 1 and Figure 3 As shown, a groove portion 23 is provided on the outer circumferential surface of the wheel body 2, the bottom surface of the groove portion 23 is used to accommodate the suction wire, and the side wall of the groove portion 23 is inclined.

[0071] Specifically, the width of the groove portion 23 matches the width of the corresponding suction ribbon. Optionally, the transition between the bottom surface and the side wall of the groove portion 23 may be rounded.

[0072] In this embodiment, the side wall of the groove portion 23 is designed with a bevel at the junction with the two end surfaces, which can effectively reduce the wear on both sides of the suction belt.

[0073] Secondly, the present disclosure also provides a cigarette suction chamber, comprising:

[0074] a wind chamber body; and

[0075] In the tobacco wheel mechanism of the above embodiment, the second end of the shaft 11 is connected to the air chamber body.

[0076] Optionally, an external threaded portion may be provided at the second end of the shaft body 11, and the tobacco wheel body mechanism may be fixed to the air chamber body via the external threaded portion.

[0077] The tobacco wheel mechanism of the cigarette suction chamber of this embodiment has a high degree of sealing, smoke and dust have little impact on the bearing 3, the bearing 3 has a long service life, and the stability of the operation of the cigarette suction chamber can be improved.

[0078] In addition, the present disclosure also provides a cigarette rolling and joining device, including the tobacco wheel body mechanism of the above embodiment, or the cigarette suction chamber of the above embodiment.

[0079] The above is a detailed introduction to a tobacco wheel mechanism, a cigarette suction chamber and a cigarette rolling device provided by the present disclosure. Specific embodiments are used in this article to illustrate the principles and implementation methods of the present disclosure. The description of the above embodiments is only used to help understand the method and core ideas of the present disclosure. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present disclosure, several improvements and modifications can be made to the present disclosure, and these improvements and modifications also fall within the scope of protection of the claims of the present disclosure.

Claims

1. A tobacco wheel mechanism, characterized in that: For installing the suction ribbon, the tobacco wheel body mechanism comprises: A mounting shaft (1) comprising a shaft body (11), wherein the shaft body (11) extends along a preset direction (x); A wheel body (2) is mounted on the first end of the shaft body (11) and is coaxially arranged with the shaft body (11), and the suction belt is mounted on the outer peripheral surface of the wheel body (2); A bearing (3) connected between the first end of the shaft (11) and the wheel (2); and A sealing component (4) is arranged on a side of the wheel body (2) away from the second end of the shaft body (11), and the sealing component (4) is configured to form a sealing area with the wheel body (2) for accommodating the bearing (3).

2. The tobacco wheel mechanism according to claim 1, characterized in that: The first end of the shaft body (11) is located on the inner side of the wheel body (2) along the preset direction (x), and the second end of the shaft body (11) is located on the outer side of the wheel body (2) along the preset direction (x).

3. The tobacco wheel mechanism according to claim 1, characterized in that: The wheel body (2) is coaxially provided with a stepped hole groove inside, and the stepped hole groove comprises: A through hole (20) is provided on one side of the wheel body (2) close to the second end of the shaft body (11), and the shaft body (11) passes through the through hole (20); A first groove body (21) is provided on a side of the wheel body (2) away from the second end of the shaft body (11), and the first groove body (21) is configured to accommodate the sealing assembly (4); and A second groove body (22) in a columnar shape, connected between the through hole (20) and the first groove body (21), wherein the second groove body (22) is configured to accommodate the bearing (3); The size of the first groove body (21) is larger than the size of the second groove body (22), and the size of the second groove body (22) is larger than the size of the through hole (20).

4. The tobacco wheel mechanism according to claim 3, characterized in that: The outer ring of the bearing (3) is interference fit with the circumferential side wall of the second groove body (22), and the inner ring of the bearing (3) is interference fit with the outer side wall of the first end of the shaft body (11).

5. The tobacco wheel mechanism according to claim 3, characterized in that: The mounting shaft (1) further comprises a protrusion (12) coaxially arranged with the shaft body (11), the radial dimension of the protrusion (12) being larger than that of the shaft body (11), the protrusion (12) passing through the through hole (20), and the protrusion (12) being radially spaced apart from the inner wall of the through hole (20) by a first preset distance.

6. The tobacco wheel mechanism according to claim 5, characterized in that: The side of the protruding portion (12) close to the first end of the shaft body (11) abuts against the inner ring of the bearing (3), and the axial side wall of the second groove body (22) abuts against the outer ring of the bearing (3).

7. The tobacco wheel mechanism according to claim 1, characterized in that: The sealing assembly (4) comprises a sealing cover (41), and the sealing cover (41) is mounted on the wheel body (2).

8. The tobacco wheel mechanism according to claim 7, characterized in that: The projection of the sealing cover (41) along the preset direction (x) is circular. The sealing assembly (4) further comprises a sealing ring (42). The sealing ring (42) is coaxially arranged with the sealing cover (41) and is located at the center of the sealing cover (41). The sealing ring (42) and the sealing cover (41) are radially spaced apart by a second preset distance. The sealing ring (42) is mounted on the first end of the shaft body (11).

9. The tobacco wheel mechanism according to claim 8, characterized in that: The outer end surface of the sealing cover (41) is flush with the end surface of the wheel body (2), at least part of the inner end surface of the sealing cover (41) abuts against the outer ring of the bearing (3), and the sealing ring (42) abuts against the inner ring of the bearing (3).

10. The tobacco wheel mechanism according to any one of claims 1 to 9, characterized in that: A groove portion (23) is provided on the outer peripheral surface of the wheel body (2), the bottom surface of the groove portion (23) is used to accommodate the suction wire, and the side wall of the groove portion (23) is arranged obliquely.

11. A cigarette suction chamber, characterized in that: include: Wind chamber body; and In the tobacco wheel mechanism according to any one of claims 1 to 10, the second end of the shaft (11) is connected to the air chamber body.

12. A cigarette rolling and joining device, characterized in that: It comprises the tobacco wheel body mechanism according to any one of claims 1 to 10, or the cigarette suction chamber according to claim 11.

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