Cut tobacco feeding pipeline and cigarette making machine

Abstract

The utility model belongs to the technical field of tobacco processing, and discloses a shred feeding pipeline and a cigarette making machine. The wire feeding pipeline is used for communicating a wire feeding device and a conveying device, the wire feeding pipeline comprises a first pipeline and a stirring assembly, a discharging port is formed in the top wall of the first pipeline, a first feeding port is formed in the side wall of the first pipeline, and the stirring assembly is arranged in an inner cavity of the first pipeline in the length direction of the first pipeline; the stirring assembly comprises a rotating shaft, a first stirring rod and a second stirring rod, the first stirring rod and the second stirring rod are both connected with the rotating shaft, the first stirring rod is located between the discharging port and the first feeding port in the conveying direction of the tobacco shreds in the first pipeline, and the second stirring rod is located between the first feeding port and the bottom wall of the first pipeline. According to the cut tobacco feeding pipeline, the blockage phenomenon caused by cut tobacco caking and abnormal cut tobacco feeding speed or cut tobacco feeding amount can be avoided, manual intervention and equipment downtime are reduced, the overall operation performance of a cigarette making machine is improved, and the tobacco processing flow is more stable and efficient.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco processing technical field especially, relate to a kind of feeding pipe and cigarette making machine. BACKGROUND

[0002] Tobacco is the main raw material for making cigarettes, and current cigarette production has achieved high automation and scale. In the tobacco processing process, the cigarette making machine is the core equipment, which usually includes a feeding device, a conveying device and a feeding pipe and other components. Among them, the feeding device and the conveying device are connected to each other through the feeding pipe to transport the cut tobacco from the conveying device to the feeding device, thereby ensuring the orderly progress of the subsequent process.

[0003] However, the existing feeding pipe has the problem of cut tobacco clogging during use. When the cut tobacco is transported, if the cut tobacco is clumped or the feeding speed is too fast or the feeding amount is too much, it is easy to cause clogging. Once clogging occurs, only the staff can stop the machine and manually clean the feeding pipe. This not only interrupts the normal tobacco processing process, but also greatly affects the processing efficiency, increases the labor cost and equipment downtime, and reduces the smoothness and continuity of the production process. SUMMARY

[0004] The purpose of the utility model is to provide a feeding pipe and a cigarette making machine to avoid clogging caused by cut tobacco clumping, abnormal feeding speed or feeding amount, reduce manual intervention and equipment downtime, and improve the efficiency of tobacco processing and the smoothness and continuity of the production process.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A feeding pipe for connecting a feeding device and a conveying device, the feeding pipe comprising:

[0007] A first pipe, the top wall of the first pipe is provided with a discharge port, and the side wall of the first pipe is provided with a first feeding port;

[0008] A stirring assembly arranged in the inner cavity of the first pipe along the length direction of the first pipe, the stirring assembly comprising a rotating shaft, a first stirring rod and a second stirring rod, the first stirring rod and the second stirring rod are connected to the rotating shaft, and along the transmission direction of the cut tobacco in the first pipe, the first stirring rod is located between the discharge port and the first feeding port, and the second stirring rod is located between the first feeding port and the bottom wall of the first pipe.

[0009] As an optional solution of the feeding pipe, a plurality of first stirring rods are arranged between the discharge port and the first feeding port with the rotating shaft as a spacing, and a plurality of second stirring rods are arranged between the first feeding port and the bottom wall of the first pipe with the rotating shaft as a spacing.

[0010] As an alternative to the feeding pipe, the stirring assembly further comprises a plurality of extension rods, and the side walls of the first stirring rod and the second stirring rod are both spacedly provided with the extension rods.

[0011] As an alternative to the feeding pipe, the stirring assembly further comprises a driving member arranged at the bottom wall of the first pipe, and an output end of the driving member is connected with the rotating shaft through the bottom wall of the first pipe, so as to drive the rotating shaft to rotate.

[0012] As an alternative to the feeding pipe, the first pipe comprises a visible pipe section, and the visible pipe section is used for observing the inner cavity of the first pipe.

[0013] As an alternative to the feeding pipe, the first pipe further comprises a first mounting pipe section, a fixed pipe section and a first fastener, and the first fastener is arranged through the first mounting pipe section and the fixed pipe section, so as to press the visible pipe section between the first mounting pipe section and the fixed pipe section.

[0014] As an alternative to the feeding pipe, the feeding pipe further comprises a second pipe, one end of the second pipe is communicated with the first feeding port of the first pipe, and the other end of the second pipe is capable of being communicated with the conveying device.

[0015] As an alternative to the feeding pipe, the second pipe comprises a telescopic pipe section, and the telescopic pipe section is used for adjusting the length of the second pipe.

[0016] As an alternative to the feeding pipe, the second pipe further comprises a second fastener, a connecting pipe section and a second mounting pipe section connected with the telescopic pipe section, one of the connecting pipe section and the second mounting pipe section is provided with a first connecting part provided with a threaded through hole, the other of the connecting pipe section and the second mounting pipe section is provided with a second connecting part, the second fastener is provided with external threads, and the second fastener is connected with the second connecting part through the threaded through hole, so as to adjust the length of the telescopic pipe section.

[0017] A cigarette making machine, comprising a feeding device, a conveying device and the feeding pipe, the feeding pipe is used for transmitting the cut tobacco in the conveying device to the feeding device, and the negative pressure airflow generated by the feeding device is capable of acting on the feeding pipe.

[0018] Advantages:

[0019] The utility model provides a kind of feeding pipe and cigarette making machine, and the tobacco cuttings blocking problem that easily appears in existing feeding pipe is effectively solved by setting stirring assembly.The stirring assembly includes shaft, first stirring rod and second stirring rod, and plays a key role in tobacco cuttings conveying.The first stirring rod is located between discharge port and first feed inlet, and its rotation can prevent tobacco cuttings from blocking or gathering, so that the tobacco cuttings in this area are in loose state, and blocking is avoided due to changes in its own characteristics, feeding speed or feeding amount.The second stirring rod is located between first feed inlet and first pipeline bottom wall, and its rotation can prevent tobacco cuttings from accumulating at the bottom of the pipeline, ensuring uniform distribution of tobacco cuttings in the pipeline.At the same time, the position of the shaft corresponding to the first feed inlet is not provided with a stirring rod, which can avoid resistance to tobacco feeding and ensure smooth feeding.The layout of the first stirring rod and the second stirring rod covers the key area, and can stir the entire process from feeding to discharging, which can enhance the effect of preventing tobacco cuttings from blocking, ensure the continuity of tobacco cuttings conveying, reduce equipment downtime, improve tobacco processing efficiency and the smoothness of the production process, provide stable and reliable tobacco conveying guarantee for subsequent processes, and thus improve the overall operation performance of the cigarette making machine, making the tobacco processing process more stable and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the structural schematic diagram of the feeding pipe provided by the utility model embodiment;

[0021] Figure 2 is the local structural schematic diagram of the stirring assembly provided by the utility model embodiment;

[0022] Figure 3 is the structural schematic diagram of the second pipeline provided by the utility model embodiment;

[0023] Figure 4 is Figure 1 the local enlarged view of A in the figure.

[0024] In the figure:

[0025] 1, first pipeline; 11, first installation pipe section; 12, visible pipe section; 13, fixed pipe section; 14, first fastener; 111, discharge port; 131, first feed inlet;

[0026] 2, stirring assembly; 21, shaft; 22, first stirring rod; 23, second stirring rod; 24, extension rod; 25, driving part; 211, first shaft; 212, second shaft; 213, third fastener; 2111, slot; 2121, plug-in part;

[0027] 3, second pipeline; 31, connection pipe section; 32, telescopic pipe section; 33, second installation pipe section; 34, second fastener; 311, first connection part; 331, second connection part; 332, second feed inlet. DETAILED DESCRIPTION

[0028] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawings, not all structures.

[0029] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0030] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0031] In the description of the embodiment, the terms "up", "down" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and not to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0032] The embodiment provides a cigarette making machine, which comprises a tobacco feeding device (not shown in the figure), a conveying device (not shown in the figure) and a tobacco feeding pipeline, the tobacco feeding pipeline is used for conveying tobacco in the conveying device to the tobacco feeding device, and a negative pressure airflow generated by the tobacco feeding device can act on the tobacco feeding pipeline, thereby providing additional power for tobacco flow, accelerating the conveying speed, making the tobacco quickly and accurately reach the tobacco feeding device, and adjusting the flow and flow rate to realize accurate control, improving the quality stability of the cigarette, reducing tobacco waste and reducing cost.

[0033] Specifically, the negative pressure airflow generated in the tobacco feeding device can be a vacuum pump or a centrifugal fan, which is not limited here. In addition, the tobacco feeding device and the conveying device belong to the category of prior art known in the art, so their specific structures will not be described here.

[0034] As shown in Figures 1-4 The above feeding pipe is used to connect the feeding device and the conveying device, and comprises a first pipe 1 and a stirring assembly 2. The top wall of the first pipe 1 is provided with a discharge port 111, and the side wall of the first pipe 1 is provided with a first feeding port 131. The stirring assembly 2 is arranged in the inner cavity of the first pipe 1 along the length direction of the first pipe 1, and comprises a rotating shaft 21, a first stirring rod 22 and a second stirring rod 23. The first stirring rod 22 and the second stirring rod 23 are both connected with the rotating shaft 21. Along the transmission direction of the cut tobacco in the first pipe 1, the first stirring rod 22 is located between the discharge port 111 and the first feeding port 131, and the second stirring rod 23 is located between the first feeding port 131 and the bottom wall of the first pipe 1.

[0035] The first stirring rod 22 is located between the discharge port 111 and the first feeding port 131, and its rotation can prevent the cut tobacco from caking or gathering, so that the cut tobacco in this area is in a loose state, and caking is avoided due to changes in its own characteristics, feeding speed or feeding amount. The second stirring rod 23 is located between the first feeding port 131 and the bottom wall of the first pipe 1, and its rotation can prevent the cut tobacco from accumulating at the bottom of the pipe, and ensure that the cut tobacco is uniformly distributed in the first pipe 1. In addition, the position of the rotating shaft 21 corresponding to the first feeding port 131 is not provided with a stirring rod, which can avoid resistance to the feeding of the cut tobacco, and ensure smooth feeding. The layout of the first stirring rod 22 and the second stirring rod 23 covers the key area, and can stir the entire process from feeding to discharging, which can enhance the effect of preventing the cut tobacco from caking and blocking, ensure the continuity of cut tobacco conveying, reduce equipment downtime, improve tobacco processing efficiency and the smoothness of the production process, provide stable and reliable cut tobacco conveying guarantee for subsequent processes, and thus improve the overall operation performance of the cigarette making machine, and make the tobacco processing process more stable and efficient.

[0036] As shown in Figure 1 and Figure 2 Between the discharge port 111 and the first feeding port 131, multiple first stirring rods 22 are arranged at intervals on the rotating shaft 21, and between the first feeding port 131 and the bottom wall of the first pipe 1, multiple second stirring rods 23 are arranged at intervals on the rotating shaft 21. Based on the fact that the cut tobacco itself has viscosity and aggregation, it is easy to cake or accumulate in conveying due to various factors, and it is difficult for a single first stirring rod 22 and a single second stirring rod 23 to effectively stir a large range, so multiple first stirring rods 22 and second stirring rods 23 are arranged to fully cover the cut tobacco flow path. The multiple first stirring rods 22 can stir the cut tobacco in a larger range to prevent it from caking or gathering, and keep the cut tobacco loose; the multiple second stirring rods 23 can fully stir the cut tobacco at the bottom of the pipe to prevent it from accumulating, and ensure that the cut tobacco is uniformly distributed, thereby improving the stability of cut tobacco conveying and ensuring that the cut tobacco entering the subsequent processes is uniform in quality.

[0037] In this embodiment, as shown in Figure 1As shown, between the discharge port 111 and the first inlet port 131, a plurality of first stirring rods 22 are distributed on both sides of the length direction of the rotating shaft 21 and staggered, eliminating the stirring blind area and ensuring that the tobacco at each position can be stirred; the first stirring rods 22 on the same side are distributed at equal intervals to ensure uniform stirring and make the stirring frequency and intensity of the tobacco at each position consistent. Each first stirring rod 22 is perpendicular to the rotating shaft 21 and covers the main flow range of the tobacco, efficiently stirring when rotating and being able to reach the tobacco regardless of how it flows. Such distribution can fully and uniformly stir the tobacco and prevent it from caking and clustering, providing high-quality and stable tobacco for subsequent processes. In other embodiments, the first stirring rods 22 can also be in the form of equal-interval spirals, multi-layer staggered distribution, etc. In addition, the number of the plurality of first stirring rods 22 depends on the interval distance between two first stirring rods 22 and the interval between the discharge port 111 and the first inlet port 131, which is not specifically limited here.

[0038] In the present embodiment, as shown in Figure 1 , the space distance between the first inlet port 131 and the bottom wall of the first pipeline 1 is limited, and a plurality of second stirring rods 23 are distributed at equal intervals in the circumferential direction of the rotating shaft 21, which can effectively stir the tobacco in a limited space. Specifically, the second stirring rods 23 can be provided in two, three, or four, etc., and the number of the second stirring rods 23 is not specifically limited.

[0039] As shown in Figure 1 and Figure 2 , the stirring assembly 2 further comprises an extension rod 24, and the side walls of the first stirring rod 22 and the second stirring rod 23 are each provided with a plurality of extension rods 24. The plurality of extension rods 24 can enhance the degree of stirring, increase the contact area and stirring points with the tobacco, and further prevent caking and clustering to make the tobacco more loose and uniform. In the present embodiment, the extension rods 24 are distributed on both sides of the length direction of the first stirring rod 22 and staggered, and the extension rods 24 on the same side are distributed at equal intervals; the extension rods 24 are distributed at equal intervals on both sides of the length direction of the second stirring rod 23. Further, the extension rods 24 can be in the form of a cylinder, a cuboid, etc.

[0040] As shown in Figure 1 , the stirring assembly 2 further comprises a driving member 25 provided at the bottom wall of the first pipeline 1, and the output end of the driving member 25 penetrates the bottom wall of the first pipeline 1 and is connected with the rotating shaft 21, which is used to drive the rotating shaft 21 to rotate and stir the tobacco in the first pipeline 1 to prevent caking and accumulation and ensure that the tobacco is loose and uniform. The idle space of the bottom wall of the first pipeline 1 is used to accommodate the driving member 25, avoiding space conflicts caused by installation at other positions, making the equipment layout reasonable and compact, and facilitating installation, maintenance, and repair. The driving member 25 is directly connected with the rotating shaft 21, reducing power transmission loss, being stably supported by the bottom wall, and improving power transmission stability and long-term operation reliability of the equipment. The driving member 25 can be selected from a motor or a hydraulic pump, which is not specifically limited here.

[0041] In the embodiment, the rotating shaft 21 comprises a first rotating shaft 211, a second rotating shaft 212 and a third fastener 213. One end of the first rotating shaft 211 is connected with the output end of the driving member 25, and the other end of the first rotating shaft 211 is connected with the second rotating shaft 212. The second stirring rod 23 is arranged on the first rotating shaft 211, and the first stirring rod 22 is arranged on the second rotating shaft 212. According to the different stirring requirements of the tobacco in different areas (the areas between the first feeding port 131 and the bottom wall of the first pipeline 1, and between the discharging port 111 and the first feeding port 131), the rotating shaft 21 is divided into two sections and different stirring rods are arranged on the two sections, so that the stirring function can be optimized and the actual production requirements can be met.

[0042] Further, as shown in Figure 4 , the first rotating shaft 211 is provided with a slot 2111, and the second rotating shaft 212 is provided with a plug-in part 2121. After the plug-in part 2121 and the slot 2111 are plugged in, the third fastener 213 is arranged through the slot wall of the slot 2111 and the plug-in part 2121 to fixedly connect the first rotating shaft 211 and the second rotating shaft 212. This connection mode is stable, can efficiently transmit power, ensures stable operation of the stirring assembly 2, reduces the probability of vibration and failure, and is convenient to disassemble and assemble, facilitating equipment maintenance and component replacement.

[0043] In other embodiments, the rotating shaft 21 can adopt the form of one shaft. When the tobacco is in a relatively uniform state during the conveying process and the stirring requirements of different areas are relatively small, the design of one shaft can simplify the structure, reduce the manufacturing cost and installation difficulty, and reduce the hidden troubles caused by the connection part.

[0044] As shown in Figure 1 , the first pipeline 1 comprises a visible pipe section 12 for observing the inner cavity of the first pipeline 1. The visible pipe section 12 enables the operator to timely find problems such as tobacco blockage, uneven stirring, component damage, etc., and timely adjust to ensure the quality of the tobacco. In addition, it is convenient for the maintenance personnel to understand the internal situation and prepare for maintenance in advance, so as to ensure continuous production and stable equipment.

[0045] As shown in Figure 1 , the first pipeline 1 further comprises a first mounting pipe section 11, a fixed pipe section 13 and a first fastener 14. The first fastener 14 is arranged through the first mounting pipe section 11 and the fixed pipe section 13 to press the visible pipe section 12 between the first mounting pipe section 11 and the fixed pipe section 13. This mounting method is simple and fast, can improve the equipment assembly efficiency, and can ensure good sealing to prevent tobacco leakage and ensure stable tobacco conveying. In addition, maintenance is easy, and the visible pipe section 12 can be cleaned, inspected or replaced by disassembling the first fastener 14, thereby saving time and cost and ensuring continuous and stable tobacco processing.

[0046] Specifically, in the embodiment, as shown in Figure 1As shown, the first mounting pipe segment 11 is provided with an annular protrusion near the end face of one end of the visible pipe segment 12, and the outer diameter of the annular protrusion is equal to the inner diameter of the visible pipe segment 12. The fixed pipe segment 13 is also provided with an annular protrusion near the end face of one end of the visible pipe segment 12, and the outer diameter of the annular protrusion is equal to the inner diameter of the visible pipe segment 12. After installation, the outer wall of the annular protrusion is tightly fitted with the inner wall of the visible pipe segment 12, which enhances the sealing performance of the connection, effectively prevents the leakage of tobacco from the gap during the conveying process, and avoids the waste of tobacco. Subsequently, a plurality of first fasteners 14 are uniformly arranged along the circumference of the first pipe 1, each first fastener 14 penetrates the protrusions extending from the outer wall of the first mounting pipe segment 11 and the protrusions extending from the outer wall of the fixed pipe segment 13, thereby pressing and fixing the visible pipe segment 12 between the first pipe segment and the fixed pipe segment 13. The uniform arrangement of the plurality of first fasteners 14 ensures that the visible pipe segment 12 is subjected to uniform pressure in the circumferential direction, thereby ensuring balanced force on the entire connection part and further improving the stability and reliability of the pipe connection. The number of first fasteners 14 can be two, three, or four, as long as the connection reliability of the first mounting pipe segment 11 and the fixed pipe segment 13 is ensured.

[0047] Specifically, as shown in Figure 1 , the first mounting pipe segment 11 is provided with a discharge port 111 at one end away from the visible pipe segment 12, the fixed pipe segment 13 is provided with a first feeding port 131 on the side wall away from the visible pipe segment 12, and the driving member 25 is installed on the bottom wall of the fixed pipe segment 13.

[0048] As shown in Figure 1 , the tobacco feeding pipe further comprises a second pipe 3, one end of the second pipe 3 is in communication with the first feeding port 131 of the first pipe 1, and the other end of the second pipe 3 is provided with a second feeding port 332 capable of being in communication with the conveying device. The second pipe 3 can ensure that the tobacco continuously and stably enters the first pipe 1 from the conveying device through the second feeding port 332 and the first feeding port 131, thereby maintaining the continuity of production and improving the efficiency.

[0049] As shown in Figure 1 and Figure 3 , the second pipe 3 comprises a telescopic pipe segment 32 for adjusting the length of the second pipe 3. When the distance between the tobacco feeding device and the conveying device changes, the telescopic pipe segment 32 can be quickly adjusted as needed, so that the tobacco feeding pipe can adapt to the new spacing requirements. In this way, large-scale modification of the entire tobacco feeding pipe is not required, thereby effectively reducing the modification cost. Moreover, the telescopic pipe segment 32 can compensate for errors during installation, thereby ensuring the precise butt joint of the second pipe 3 with the conveying device and the first pipe 1, avoiding problems such as tobacco leakage and poor conveying, and ensuring stable and efficient tobacco conveying and maintaining the continuity of production.

[0050] As shown in Figure 1 and Figure 3As shown, the second pipeline 3 further comprises a second fastener 34, a connecting pipe section 31 connected with the telescopic pipe section 32, and a second mounting pipe section 33, one of the connecting pipe section 31 and the second mounting pipe section 33 is provided with a first connecting part 311 provided with a threaded hole, the other of the connecting pipe section 31 and the second mounting pipe section 33 is provided with a second connecting part 331, the second fastener 34 is provided with external threads, and the second fastener 34 is connected with the second connecting part 331 through the threaded hole, and the second fastener 34 is used to adjust the length of the telescopic pipe section 32. The adjustment mode of the threaded connection has the characteristics of simple operation, and the staff only needs to rotate the second fastener 34 to flexibly adjust the length of the telescopic pipe section 32 according to actual needs, quickly adapt to the distance change between the feeding device and the conveying device, without complex tools and operation processes, time and labor cost are saved. Moreover, the threaded connection has good stability and self-locking property, can firmly fix the telescopic pipe section 32 after being adjusted to the appropriate length, and the length will not change due to the pressure, vibration and other factors of the tobacco conveying in the second pipeline 3, so as to ensure the accuracy and stability of the length of the second pipeline 3, and then ensure the accurate butt joint of the second pipeline 3 with the conveying device and the first pipeline 1, effectively avoid the problems of tobacco leakage and poor conveying, maintain the stable and efficient tobacco conveying, and ensure the continuity of tobacco processing and production.

[0051] In the embodiment, the connecting pipe section 31 is provided with the first connecting part 311 provided with the threaded hole, the second mounting pipe section 33 is provided with the second connecting part 331, the second fastener 34 is provided with the external threads, and the second fastener 34 is connected with the second connecting part 331 through the threaded hole, and the second fastener 34 is used to adjust the length of the telescopic pipe section 32. In other embodiments, the second mounting pipe section 33 is provided with the first connecting part 311 provided with the threaded hole, the connecting pipe section 31 is provided with the second connecting part 331, the second fastener 34 is provided with the external threads, and the second fastener 34 is connected with the second connecting part 331 through the threaded hole, and the second fastener 34 is used to adjust the length of the telescopic pipe section 32.

[0052] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, it is not necessary and impossible to enumerate all the embodiments. Any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A wire feeding conduit for connecting a wire feeding device and a conveying device, characterized in that, The feeding pipe comprises: A first pipe (1), a top wall of the first pipe (1) is provided with a discharge port (111), a side wall of the first pipe (1) is provided with a first feeding port (131); A stirring assembly (2) is arranged in the inner cavity of the first pipe (1) along the length direction of the first pipe (1), the stirring assembly (2) comprises a rotating shaft (21), a first stirring rod (22) and a second stirring rod (23), the first stirring rod (22) and the second stirring rod (23) are both connected with the rotating shaft (21), along the transmission direction of the tobacco in the first pipe (1), the first stirring rod (22) is located between the discharge port (111) and the first feeding port (131), and the second stirring rod (23) is located between the first feeding port (131) and the bottom wall of the first pipe (1).

2. The feed tube of claim 1, wherein, A plurality of first stirring rods (22) are arranged at intervals on the rotating shaft (21) between the discharge port (111) and the first feeding port (131), and a plurality of second stirring rods (23) are arranged at intervals on the rotating shaft (21) between the first feeding port (131) and the bottom wall of the first pipe (1).

3. The spooling tube of claim 2, wherein, The stirring assembly (2) further comprises an extension rod (24), and a plurality of extension rods (24) are arranged at intervals on the side wall of the first stirring rod (22) and the second stirring rod (23).

4. The spooling tube of claim 1, wherein, The stirring assembly (2) further comprises a driving member (25) arranged on the bottom wall of the first pipe (1), an output end of the driving member (25) penetrates the bottom wall of the first pipe (1) and is connected with the rotating shaft (21) for driving the rotating shaft (21) to rotate.

5. The spooling tube of claim 1, wherein, The first pipe (1) comprises a visible pipe section (12) for observing the inner cavity of the first pipe (1).

6. The spooling tube of claim 5, wherein, The first pipe (1) further comprises a first mounting pipe section (11), a fixed pipe section (13) and a first fastener (14), the first fastener (14) penetrates the first mounting pipe section (11) and the fixed pipe section (13) to press the visible pipe section (12) between the first mounting pipe section (11) and the fixed pipe section (13).

7. The feed tube of claim 1, wherein, The feeding pipe further comprises a second pipe (3), one end of the second pipe (3) is communicated with the first feeding port (131) of the first pipe (1), and the other end of the second pipe (3) can be communicated with the conveying device.

8. The spooling tube of claim 7, wherein, The second pipe (3) comprises a telescopic pipe section (32) for adjusting the length of the second pipe (3).

9. The feed tube of claim 8, wherein, The second pipe (3) further comprises a second fastener (34), a connecting pipe section (31) and a second mounting pipe section (33) connected with the telescopic pipe section (32), one of the connecting pipe section (31) and the second mounting pipe section (33) is provided with a first connecting part (311) provided with a threaded through hole, the other of the connecting pipe section (31) and the second mounting pipe section (33) is provided with a second connecting part (331), the second fastener (34) is provided with external threads, and the second fastener (34) is connected with the second connecting part (331) through the threaded through hole, and the second fastener (34) is used to adjust the length of the telescopic pipe section (32).

10. A cigarette making machine characterized by, A pipe for tobacco industry comprising a feeding device, a conveying device and a feeding pipe according to any one of claims 1-9, the feeding pipe being used to transfer tobacco from the conveying device to the feeding device, and the negative pressure airflow generated by the feeding device being able to act on the feeding pipe.

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