Tobacco shred blanking module of cigarette making machine

Abstract

The invention relates to a cigarette making machine tobacco shred discharging module and relates to the technical field of discharging modules, the cigarette making machine tobacco shred discharging module comprises a tobacco shred bin and a discharging mechanism, and the discharging mechanism comprises a supporting shaft core, a driving shaft, a driven shaft and a plurality of discharging rollers; the supporting shaft core is horizontally arranged in the tobacco shred bin, the discharging rollers are arranged on the outer side of the supporting shaft core side by side in a sleeving mode, and a bearing ring is arranged on the supporting shaft core; the driving shaft and the driven shaft horizontally penetrate through the supporting shaft core; a driving gear and a driven gear are respectively arranged at the ends of the driving shaft and the driven shaft; a plurality of containing cavities alternately communicated with the driving shaft and the driven shaft at intervals are evenly formed in the supporting shaft core in the length direction of the supporting shaft core, driving gears installed on the driving shaft or the driven shaft are arranged in the containing cavities, and the multiple driving gears are in meshing transmission with an inner gear ring arranged on the discharging roller. By arranging the discharging rollers capable of alternately rotating in the opposite directions at intervals, tobacco shreds can be separated in the discharging process, and the tobacco shred hooking problem is effectively solved.

Description

Technical Field

[0001] This application relates to the field of feeding modules, and more particularly to a tobacco feeding module for a cigarette machine. Background Technology

[0002] In cigarette production, the tobacco feeding module is a core component of the cigarette machine, and its feeding stability directly determines the quality of the cigarettes and production efficiency. Currently, most mainstream cigarette machines use a unidirectional rotary conveyor design for their tobacco feeding modules, which use motor-driven rollers or scrapers to transport the tobacco. This design stems from a simplified understanding of the characteristics of tobacco and is no longer suitable for the actual physical properties of tobacco, becoming a bottleneck for high-quality development in the industry.

[0003] Tobacco shreds have a unique characteristic of being "neither soft nor hard," lacking both powder flowability and solid-state stability, and the fibers easily clump together to form flocculent or clump-like structures. However, unidirectional rotary conveying causes the tobacco shreds to align in a specific direction, making it impossible to break up the clumps. Instead, these clumps accumulate during conveying, leading to uneven feeding resistance, pulsed feeding, or even blockages.

[0004] The aforementioned defects directly lead to quality problems such as excessive weight deviation of cigarettes and empty cigarette heads, and also cause waste of tobacco shreds and a decrease in equipment operating rate. The industry has tried to solve these defects by optimizing roller texture and adding vibration devices, but these methods can only alleviate the problems in the short term and cannot fundamentally solve the problem of tobacco shreds sticking together. The existing technology is still in the stage of "treating the symptoms but not the root cause".

[0005] Therefore, developing an improved tobacco feeding module that can actively break up the tangled tobacco strands has become an urgent problem to be solved in the tobacco equipment field, and is of great significance to promoting the upgrading of cigarette production equipment. Summary of the Invention

[0006] In view of the above problems, this application is made in order to provide a cigarette machine tobacco feeding module that overcomes or at least partially solves the above problems.

[0007] The tobacco feeding module for the cigarette machine provided in this application adopts the following technical solution: A cigarette machine tobacco feeding module includes a tobacco bin and a feeding mechanism disposed within the tobacco bin. The feeding mechanism includes a support shaft, a drive shaft, a driven shaft, and multiple feeding rollers. The support shaft is horizontally arranged inside the tobacco shreds bin, and multiple feeding rollers are sequentially arranged side by side on the outside of the support shaft. The support shaft is also fitted with multiple pairs of bearing rings for supporting the multiple feeding rollers respectively. Both the drive shaft and the driven shaft pass horizontally through the support shaft core and are movably connected to it, and both are rotatably connected to the tobacco bin; The length of the support shaft core is less than the length of the drive shaft and the driven shaft; the end positions of the drive shaft and the driven shaft are respectively provided with a drive gear and a driven gear, the drive gear and the driven gear mesh and drive each other, and the end faces of the drive gear and the driven gear abut against the end face of the support shaft core; The support shaft core is uniformly provided with a plurality of accommodating cavities that are alternately connected to the drive shaft and the driven shaft along its length direction. Each accommodating cavity is provided with a drive gear mounted on the drive shaft or the driven shaft, and the plurality of drive gears sequentially mesh with an internal gear ring disposed on the inner side of the feed roller.

[0008] Optionally, the feeding mechanism further includes a drive motor, which is connected to the drive shaft via a coupling.

[0009] Optionally, sealing slip rings are provided between adjacent feeding rollers and between the feeding rollers and the side wall of the tobacco bin.

[0010] Optionally, a sealing ring located inside the sealing slip ring is provided between adjacent feeding rollers and between the feeding roller and the side wall of the tobacco bin.

[0011] Optionally, a thrust ball bearing is provided between the driving gear and the driven gear and the end face of the support shaft core.

[0012] Optionally, the support shaft core is provided with a pair of keyholes along its length direction, which communicate with the through holes through which the driving shaft and the driven shaft pass respectively.

[0013] In summary, this application has the following beneficial technical effects: by setting up feeding rollers that can rotate alternately in opposite directions, this application can separate tobacco shreds during the feeding process, effectively solving the problem of tobacco shreds sticking together. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0015] Figure 2 This is a partial sectional view of the feeding mechanism in an embodiment of this application.

[0016] Figure 3 yes Figure 2 A magnified view of a portion of region A in the middle.

[0017] Figure 4 This is a schematic diagram showing the connection relationship between the support shaft core and the driving shaft and driven shaft in the embodiments of this application.

[0018] Figure 5 This is a schematic diagram of the supporting shaft core in an embodiment of this application.

[0019] Explanation of reference numerals in the attached drawings: 1. Tobacco bin; 2. Feeding mechanism; 21. Support shaft core; 211. Receiving cavity; 212. Keyhole; 22. Drive shaft; 221. Drive gear; 23. Driven shaft; 231. Driven gear; 24. Feeding roller; 241. Internal gear ring; 242. Protrusion; 25. Drive motor; 3. Bearing ring; 4. Drive gear; 5. Sealing slip ring; 6. Sealing ring. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. Obviously, the described embodiments are one embodiment of this invention, and not all embodiments. Based on the described embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0021] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains.

[0022] This embodiment provides a tobacco feeding module for a cigarette machine.

[0023] Reference Figure 1 The cigarette machine tobacco feeding module includes a tobacco bin 1 for storing tobacco and a feeding mechanism 2 disposed in the tobacco bin 1. The feeding mechanism 2 is used to transport the tobacco from the tobacco bin 1 to the next working module of the cigarette machine.

[0024] Reference Figure 2 , Figure 3 and Figure 4 The feeding mechanism 2 includes a support shaft core 21, a drive shaft 22, a driven shaft 23, and multiple feeding rollers 24.

[0025] The support shaft core 21 is horizontally arranged inside the tobacco shred bin 1 along the length direction. Multiple feeding rollers 24 are sequentially arranged side by side on the outside of the support shaft core 21. The support shaft core 21 is also fitted with multiple pairs of bearing rings 3 corresponding to the number of feeding rollers 24. The multiple pairs of bearing rings 3 are located inside the feeding rollers 24 and are used to support the multiple feeding rollers 24. Each pair of bearing rings 3 is distributed on both sides of the corresponding feeding roller 24.

[0026] Both the drive shaft 22 and the driven shaft 23 pass horizontally through the support shaft core 21 and are movably connected to it. Both ends of the drive shaft 22 and the driven shaft 23 are rotatably connected to the tobacco bin 1. That is, the support shaft core 21 is provided with through holes for the drive shaft 22 and the driven shaft 23 to pass through respectively. After the drive shaft 22 and the driven shaft 23 pass through the through holes, they are rotatably connected to the tobacco bin 1.

[0027] The length of the support shaft core 21 is less than the length of the drive shaft 22 and the driven shaft 23. The drive shaft 22 and the driven shaft 23 are respectively provided with drive gear 221 and driven gear 231 located outside the support shaft. The drive gear 221 and the driven gear 231 mesh and drive each other, and the end faces of the drive gear 221 and the driven gear 231 abut against the end face of the support shaft core 21, so as to fix the support shaft core 21 through the drive gear 221, the driven gear 231 and the side wall of the tobacco bin 1.

[0028] In the specific implementation process, in order to avoid friction between the driving gear 221 and the driven gear 231 and the support shaft core 21 during the meshing transmission, a thrust ball bearing (not shown in the figure) can be provided between the driving gear 221 and the driven gear 231 and the support shaft core 21.

[0029] The support shaft core 21 has a plurality of receiving cavities 211 evenly arranged along its length direction. The plurality of receiving cavities 211 are alternately connected to the driving shaft 22 and the driven shaft 23, that is, one of the adjacent receiving cavities 211 is connected to the driving shaft 22 and the other is connected to the driven shaft 23.

[0030] Each cavity 211 is equipped with a drive gear 4 mounted on the drive shaft 22 or the driven shaft 23. Multiple drive gears 4 sequentially mesh with the internal gear ring 241 located inside the feed roller 24 through the gap between each pair of bearing rings 3. The drive gears 4 drive adjacent feed rollers 24 in opposite directions, that is, the multiple feed rollers 24 rotate alternately in opposite directions at intervals.

[0031] To achieve electric drive of the drive shaft 22, the unloading mechanism 2 also includes a drive motor 25, which is connected to the drive shaft 22 via a coupling (not shown in the figure). In specific implementation, the drive motor 25 is preferably a variable frequency asynchronous motor or a servo motor to achieve precise speed control of the drive shaft 22.

[0032] To prevent tobacco from entering the feeding mechanism 2 through the gaps between the feeding rollers 24 during rotation, sealing slip rings 5 ​​are provided between adjacent feeding rollers 24 and between the feeding rollers 24 and the side wall of the tobacco bin 1. Furthermore, to further prevent tobacco from entering the feeding mechanism 2, sealing rings 6 are also provided between adjacent feeding rollers 24 and between the feeding rollers 24 and the side wall of the tobacco bin 1, located inside the sealing rings.

[0033] In order to further improve the separation effect of the feeding mechanism 2 on tobacco shreds and avoid snagging, each feeding roller 24 is provided with at least two rows of protrusions 242.

[0034] Reference Figure 4 and Figure 5In order to facilitate the connection between the drive gear 4 and the drive shaft 22 and the driven shaft 23, a pair of keyholes 212 are provided on the support shaft core 21 along its length direction, which are respectively connected to the through holes through which the drive shaft 22 and the driven shaft 23 pass, so that the connecting key for connecting the drive gear 4 to the drive shaft 22 and the driven shaft 23 can pass through during installation.

[0035] The implementation principle of the tobacco feeding module for a cigarette machine in this application embodiment is as follows: During the feeding process, the drive motor 25 drives the drive shaft 22 to rotate. The drive shaft 22 drives the driven shaft 23 to rotate synchronously through the meshing transmission of the drive gear 221 and the driven gear 231. At this time, the drive gear 4 set on the drive shaft and the driven shaft 23 meshes with the internal gear ring 241 set on the inner side of the feeding roller 24, so as to realize that multiple feeding rollers 24 rotate alternately in opposite directions, thereby realizing the effective separation of tobacco shreds during the feeding process.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A tobacco feeding module for a cigarette machine, comprising a tobacco bin (1) and a feeding mechanism (2) disposed within the tobacco bin (1), characterized in that, The feeding mechanism (2) includes a support shaft core (21), a drive shaft (22), a driven shaft (23), and multiple feeding rollers (24); The support shaft core (21) is horizontally arranged inside the tobacco shred bin (1), and multiple feeding rollers (24) are sequentially arranged side by side on the outside of the support shaft core (21). The support shaft core (21) is provided with multiple pairs of bearing rings (3) for supporting the multiple feeding rollers (24) respectively. Both the drive shaft (22) and the driven shaft (23) pass horizontally through the support shaft core (21) and are movably connected to it, and are rotatably connected to the tobacco bin (1); The length of the support shaft core (21) is less than the length of the drive shaft (22) and the driven shaft (23); the drive shaft (22) and the driven shaft (23) are respectively provided with a drive gear (221) and a driven gear (231) at their ends, the drive gear (221) and the driven gear (231) mesh and drive each other, and the end faces of the drive gear (221) and the driven gear (231) abut against the end face of the support shaft core (21); The support shaft core (21) is uniformly provided with a plurality of accommodating cavities (211) that are alternately connected to the drive shaft (22) and the driven shaft (23) along its length direction. Each accommodating cavity (211) is provided with a drive gear (4) installed on the drive shaft (22) or the driven shaft (23), and the plurality of drive gears (4) are sequentially meshed with an internal gear ring (241) provided inside the unloading roller (24).

2. The cigarette machine tobacco feeding module according to claim 1, characterized in that: The feeding mechanism (2) also includes a drive motor (25), which is connected to the drive shaft (22) via a coupling.

3. The cigarette machine tobacco feeding module according to claim 1, characterized in that: Sealing slip rings (5) are provided between adjacent feeding rollers (24) and between the feeding rollers (24) and the side wall of the tobacco bin (1).

4. The cigarette machine tobacco feeding module according to claim 3, characterized in that: A sealing ring (6) located inside the sealing slip ring (5) is provided between adjacent feeding rollers (24) and between the feeding rollers (24) and the side wall of the tobacco bin (1).

5. The cigarette machine tobacco feeding module according to claim 1, characterized in that: Thrust ball bearings are provided between the driving gear (221) and the driven gear (231) and the end face of the support shaft (21).

6. The cigarette machine tobacco feeding module according to claim 1, characterized in that: The support shaft core (21) has a pair of keyholes (212) along its length direction, which are connected to the through holes that pass through the drive shaft (22) and the driven shaft (23), respectively.

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