Tobacco shred conveying system

Abstract

The invention discloses a cut tobacco conveying system which comprises a cut tobacco feeder, a conveying device, a pipeline switching device and a driving device. The conveying device comprises a first conveying pipeline, a hollow hose and a second conveying pipeline. The two ends of the first conveying pipeline communicate with the wire feeder and the first end of the hollow hose correspondingly. The pipeline switching device comprises a body, butt-joint openings, rails, a third conveying pipeline, butt-joint pipes and a moving frame, the rails are evenly distributed on the first side wall of the body at intervals, the butt-joint openings are evenly formed in the second side wall of the body at intervals, the second conveying pipeline communicates with the butt-joint openings, and the first ends of the butt-joint pipes are connected with the moving frame; the second end of the butt-joint pipe communicates with the butt-joint opening, the movable frame is slidably arranged on the track, and the third conveying pipeline communicates with the butt-joint pipe and the second end of the hollow hose; the driving device is connected with the movable frame. The tobacco shred conveying path can be flexibly adjusted, the equipment layout adjusting process is simplified, cost is reduced, and tobacco shred conveying stability and cigarette quality consistency are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of cigarette machinery and equipment technology, and more specifically, to a tobacco conveying system. Background Technology

[0002] In the process of cigarette production, from the production of finished tobacco shreds to the rolling into cigarette sticks and then packaging into boxes or cartons (especially the production process from tobacco shreds to cigarette sticks), the production and storage of tobacco shreds and cigarette sticks are set up in two areas due to the different environmental conditions. Therefore, there will be a process where tobacco shreds are transported to a cigarette rolling machine.

[0003] Currently, a feeder is installed in the tobacco storage room, and each feeder has 6-8 air ducts. Taking 6 ducts as an example, the 6 ducts of one feeder correspond to 6 machines that produce the same brand. In the process of rolling finished cigarettes, the placement of each set of rolling and packaging equipment is fixed. However, during the production process, the brand and output produced are dynamic due to market changes. This requires adjusting the production units at any time to produce different brands or purchasing new units to expand production. Rearranging the rolling and packaging equipment is very complicated, involving dismantling, transportation, installation, debugging, trial production and evaluation, and formal production, which is time-consuming and costly, and can easily cause quality differences.

[0004] Therefore, how to provide a tobacco conveying system has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] The purpose of this invention is to provide a new technical solution for a tobacco conveying system.

[0006] According to a first aspect of the present invention, a tobacco shred conveying system is provided, comprising: a tobacco feeder, a conveying device, a pipeline switching device, and a driving device;

[0007] The conveying device includes a first conveying pipe, a hollow flexible tube, and a second conveying pipe. The two ends of the first conveying pipe are respectively connected to the tobacco feeder and the first end of the hollow flexible tube. The second conveying pipe is used to connect to the tobacco rolling device.

[0008] The pipeline switching device includes a body, a docking port, a track, a third conveying pipeline, a docking connector, and a movable frame. The track is evenly spaced on the first side wall of the body, and the docking ports are evenly spaced on the second side wall of the body. The second conveying pipeline is connected to the docking port. The first end of the docking connector is connected to the movable frame, and the second end of the docking connector is connected to the docking port. The movable frame is slidably mounted on the track. The third conveying pipeline is connected to the docking connector and the second end of the hollow flexible tube, respectively.

[0009] The driving device is connected to the moving frame and is used to drive the moving frame to move along the track so that the connecting pipe on the moving frame is connected to the corresponding connecting interface.

[0010] Optionally, the conveying device further includes a valve, which is disposed on the first conveying pipe.

[0011] Optionally, the conveying device further includes a negative pressure detector, which is disposed on the second conveying pipe.

[0012] Optionally, the conveying device further includes a telescopic hose and a connecting pipe. The telescopic hose is disposed inside the connecting pipe, and both ends of the telescopic hose are respectively connected to the first end of the connecting pipe and the third conveying pipe, and the second end of the connecting pipe is connected to the second conveying pipe.

[0013] Optionally, the connecting pipe has a through hole and a mounting groove inside. The through hole extends through the connecting pipe along its length, the mounting groove is disposed on the inner wall of the through hole, and the telescopic hose is disposed inside the through hole.

[0014] The pipeline switching device further includes a first cylinder, a push rod, and a fixing plate. The fixing plate is disposed in the mounting groove of the first cylinder and on the outer wall of the connecting pipe. The two ends of the push rod are respectively connected to the output shaft of the first cylinder and the fixing plate.

[0015] Optionally, the pipe switching device further includes a sealing ring disposed on the connecting pipe and located between the connecting pipe and the connecting interface.

[0016] Optionally, the driving device includes a second cylinder and a plurality of rollers, the plurality of rollers being respectively disposed outside the movable frame and disposed inside the track, the output shaft of the second cylinder being connected to the movable frame for driving the movable frame to move within the track.

[0017] Optionally, the drive device further includes a controller and a position sensor. The controller is electrically connected to the second cylinder and the position sensor, respectively. The position sensor is disposed on the four sides of the moving frame and is used to detect whether the moving frame is aligned with the interface.

[0018] Optionally, the pipeline switching device further includes positioning blocks disposed around the docking interface and corresponding to the position sensors respectively.

[0019] The beneficial effects of this invention are as follows:

[0020] This invention, by incorporating a pipe switching device and a movable connecting pipe and moving frame, allows the tobacco feeder to move the moving frame along a track via a drive device. This enables flexible switching between the connecting pipe and different connecting interfaces, thereby precisely delivering tobacco to the corresponding rolling device. Using this structure, there is no need for dismantling, transporting, installing, or debugging the rolling equipment. The tobacco delivery path can be dynamically adjusted according to production grades and output requirements, significantly reducing the time and cost of equipment layout adjustments, avoiding quality differences caused by equipment relocation, and ensuring the stability and consistency of the tobacco delivery and rolling process. Simultaneously, the system is highly scalable, easily connecting to new rolling units, effectively adapting to the production needs of flexible cigarette manufacturing, multiple grades, and variable output, improving production efficiency and product quality stability.

[0021] Other features and advantages of the invention will become clear from the following detailed description of exemplary embodiments of the invention with reference to the accompanying drawings. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0023] Figure 1 This is a structural diagram of the tobacco conveying system of the present invention;

[0024] Figure 2 This is a structural diagram of the second conveying pipe of the present invention;

[0025] Figure 3 This is a structural diagram of the pipeline switching device of the present invention;

[0026] Figure 4 This is a structural diagram of the third conveying pipe of the present invention;

[0027] Figure 5 This is a structural diagram of the connecting pipe of the present invention;

[0028] Figure 6 This is a structural diagram of the driving device of the present invention.

[0029] The following are marked in the diagram: 1. Tobacco feeder; 2. Conveying device; 21. First conveying pipe; 22. Hollow hose; 23. Second conveying pipe; 24. Valve; 25. Negative pressure detector; 26. Telescopic hose; 27. Connecting pipe; 3. Pipe switching device; 31. Body; 32. Connecting interface; 33. Track; 34. Third conveying pipe; 35. Connecting pipe; 36. Moving frame; 37. First cylinder; 38. Sealing ring; 39. Fixing plate; 310. Push rod; 4. Drive device; 41. Second cylinder; 42. Roller; 43. Position sensor; 5. Tobacco rolling device. Detailed Implementation

[0030] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0031] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0032] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0033] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0034] like Figures 1 to 6 As shown, an embodiment of the present invention provides a tobacco shred conveying system, including: a tobacco feeder 1, a conveying device 2, a pipeline switching device 3, and a driving device 4.

[0035] The conveying device 2 includes a first conveying pipe 21, a hollow hose 22, and a second conveying pipe 23. The two ends of the first conveying pipe 21 are respectively connected to the first end of the tobacco feeder 1 and the first end of the hollow hose 22. The second conveying pipe 23 is used to connect to the tobacco rolling device 5.

[0036] The pipeline switching device 3 includes a body 31, a docking interface 32, a track 33, a third conveying pipeline 34, a docking connector 35, and a moving frame 36. The track 33 is evenly spaced on the first side wall of the body 31, and the docking interfaces 32 are evenly spaced on the second side wall of the body 31. The second conveying pipeline 23 is connected to the docking interface 32. The first end of the docking connector 35 is connected to the moving frame 36, and the second end of the docking connector 35 is connected to the docking interface 32. The moving frame 36 is slidably mounted on the track 33. The third conveying pipeline 34 is connected to the docking connector 35 and the second end of the hollow flexible hose 22, respectively.

[0037] The drive unit 4 is connected to the moving frame 36 and is used to drive the moving frame 36 to move along the track 33 so that the connecting pipe 35 on the moving frame 36 can connect with the corresponding connecting interface 32. Specifically, by driving the moving frame 36 to move on the track 33 through the drive unit 4, the connecting pipe 35 can be quickly connected with different connecting interfaces 32, realizing flexible tobacco feeding from a single tobacco feeder 1 to different rolling machines and production lines of different grades. It is no longer necessary to limit a single tobacco feeder 1 to producing the same grade of tobacco on a fixed machine. The tobacco feeding path can be dynamically adjusted according to market demand and production plan to meet the flexible production needs of multiple grades and variable output.

[0038] After the system starts, the tobacco shreds in the feeder 1 are conveyed through the first conveying pipe 21 to the hollow flexible tube 22, and then enter the third conveying pipe 34. According to the production grade and machine allocation instructions, the drive unit 4 drives the moving frame 36 to move along the track 33 on the side wall of the main body 31, causing the connecting pipe 35 on the moving frame 36 to move synchronously until the connecting pipe 35 precisely connects with the corresponding rolling device's interface 32. Subsequently, the tobacco shreds are sequentially conveyed through the third conveying pipe 34, the connecting pipe 35, the interface 32, and the second conveying pipe 23 to the designated tobacco rolling device 5.

[0039] When it is necessary to switch production grades or adjust the tobacco feeding machine, the drive device 4 drives the moving frame 36 to move along the track 33 again, so that the connecting pipe 35 and the target connecting interface 32 are reconnected, and the tobacco conveying path can be quickly switched. The entire process does not require any changes to the position of the rolling and packaging equipment or the layout of the main conveying pipeline, thus realizing flexible tobacco conveying switching.

[0040] This invention, by incorporating a pipe switching device 3, a movable connecting pipe 35, and a moving frame 36, allows the tobacco feeder 1 to move along the track 33 via a drive device 4, enabling flexible docking and switching between the connecting pipe 35 and different connecting interfaces 32. This ensures precise delivery of tobacco to the corresponding rolling device. This structure eliminates the need for dismantling, transporting, installing, and debugging the rolling equipment. It allows for dynamic adjustment of the tobacco delivery path based on production grades and output requirements, significantly reducing the time and cost of equipment layout adjustments. It also avoids quality discrepancies caused by equipment relocation, ensuring the stability and consistency of the tobacco delivery and rolling process. Furthermore, the system is highly scalable, easily connecting to new rolling units, effectively adapting to the flexible, multi-grade, and variable-output production needs of cigarettes, and improving production efficiency and product quality stability.

[0041] In one embodiment of the tobacco conveying system of the present invention, such as Figure 1 As shown, the conveying device also includes a valve 24, which is installed on the first conveying pipe 21.

[0042] The present invention provides a valve 24 on the first conveying pipe 21, which can control the opening and closing of the tobacco conveying passage in real time according to the switching requirements of the rolling machine, avoiding leakage, accumulation or waste caused by continuous tobacco conveying during the pipeline switching process. At the same time, it facilitates the cutting off of tobacco supply when stopping the machine for maintenance or switching grades, ensuring the safety and reliability of pipeline switching operation, and further improving the control accuracy of tobacco conveying and production stability.

[0043] In one embodiment of the tobacco conveying system of the present invention, such as Figure 2 As shown, the conveying device also includes a negative pressure detector 25, which is installed on the second conveying pipe 23.

[0044] The present invention provides a negative pressure detector 25 on the second conveying pipe 23, which can monitor the negative pressure status in the tobacco conveying pipe in real time, detect pipe blockage, air leakage, negative pressure abnormality and other faults in a timely manner, avoid the tobacco conveying process being unsmooth, broken or uneven due to unstable negative pressure, ensure the tobacco conveying process is stable and controllable, and facilitate the rapid location of fault points, reduce downtime and improve the continuity of cigarette production and the consistency of product quality.

[0045] In one embodiment of the tobacco conveying system of the present invention, such as Figure 3 and Figure 4 As shown, the conveying device 2 also includes a telescopic hose 26 and a connecting pipe 27. The telescopic hose 26 is disposed inside the connecting pipe 35. The two ends of the telescopic hose 26 are respectively connected to the first end of the connecting pipe 27 and the third conveying pipe 34. The second end of the connecting pipe 27 is connected to the second conveying pipe 23.

[0046] Specifically, the flexible hose 26 and the connecting pipe 27 are installed inside the connecting pipe 35 to achieve adaptive compensation and sealing connection during pipeline switching and docking, eliminate pipeline docking gaps and assembly errors, ensure that the tobacco conveying passage is sealed and smooth, and prevent air leakage, material leakage and negative pressure loss.

[0047] Meanwhile, the telescopic hose 26 can buffer the displacement impact during moving and docking, improve docking reliability and sealing, ensure stable tobacco delivery, and further improve the accuracy of grade switching and machine tobacco supply.

[0048] In one embodiment of the tobacco conveying system of the present invention, such as Figure 3 , Figure 4 and Figure 5 As shown, the connecting pipe 35 has a through hole and an installation groove inside. The through hole extends through the connecting pipe 35 along its length, and the installation groove is located on the inner wall of the through hole. The telescopic hose 26 is located inside the through hole.

[0049] The pipeline switching device 3 also includes a first cylinder 37, a push rod 310 and a fixing plate 39. The fixing plate 39 is disposed in the mounting groove of the first cylinder 37 and on the outer wall of the connecting pipe 27. The two ends of the push rod 310 are respectively connected to the output shaft of the first cylinder 37 and the fixing plate 39.

[0050] This invention provides a stable installation space for components such as the telescopic hose 26 and the first cylinder 37 by setting through holes and installation grooves in the connecting pipe 35, resulting in a compact and reasonable structure. Furthermore, the first cylinder 37 drives the push rod 310 and the fixing plate 39, causing the connecting pipe 27 to achieve axial extension and retraction. This, combined with the telescopic hose 26, forms a reliable sealed connection, ensuring rapid and precise pipe connection and disconnection, preventing tobacco leakage and negative pressure loss, improving the automation and operational stability of pipeline switching, reducing manual intervention, and enhancing the efficiency and reliability of tobacco conveying and connection.

[0051] In one embodiment of the tobacco conveying system of the present invention, such as Figure 3 , Figure 4 and Figure 5 As shown, the pipeline switching device 3 also includes a sealing ring 38, which is disposed on the connecting pipe 35 and located between the connecting pipe 35 and the connecting interface 32.

[0052] The present invention provides a sealing ring 38 between the connecting pipe 35 and the connecting interface 32, which can effectively improve the sealing performance of the connecting part, prevent air leakage, tobacco leakage and negative pressure attenuation during the conveying process, and ensure stable and smooth pneumatic conveying of tobacco; at the same time, it reduces the entry of outside air into the pipeline, which causes fluctuations in the moisture content and temperature of tobacco, improves the consistency of cigarette production quality, and enhances the sealing and reliability of the connecting position.

[0053] In one embodiment of the tobacco conveying system of the present invention, such as Figure 4 and Figure 6 As shown, the driving device includes a second cylinder 41 and multiple rollers 42. The multiple rollers 42 are respectively disposed outside the moving frame 36 and disposed inside the track. The output shaft of the second cylinder 41 is connected to the moving frame 36 and is used to drive the moving frame 36 to move inside the track.

[0054] This invention uses rollers 42 and tracks for movement, and is driven by a second cylinder 41, which makes the movement of the moving frame 36 more stable and smooth, reduces frictional resistance and operating noise, and improves the accuracy of pipeline switching position. The cylinder drive has a fast response and reliable action, and can quickly complete the alignment of the connecting pipe 35 with different connecting interfaces 32, improving switching efficiency. At the same time, the overall structure is simple and durable, easy to maintain, and ensures stable and accurate switching of the tobacco conveying pipeline.

[0055] In one embodiment of the tobacco conveying system of the present invention, such as Figure 4 and Figure 6 As shown, the drive device also includes a controller and a position sensor 43. The controller is electrically connected to the second cylinder 41 and the position sensor 43 respectively. The position sensor 43 is respectively set on the four sides of the moving frame 36 and is used to detect whether the moving frame 36 is aligned with the interface 32.

[0056] This invention, by setting up a controller and a position sensor 43, can accurately detect the alignment status of the moving frame 36 and the docking interface 32 in real time, realize automatic alignment and precise docking, and avoid manual adjustment errors; the controller automatically controls the action of the second cylinder 41 according to the position signal, realizes the full automation of pipeline switching, improves docking accuracy and switching efficiency, prevents misalignment from causing air leakage and material leakage, ensures stable and reliable tobacco conveying, and improves the system's intelligence level and production continuity.

[0057] In one embodiment of the tobacco conveying system of the present invention, the pipe switching device 3 further includes positioning blocks, which are disposed around the interface 32 and correspond to the position sensors 43 respectively.

[0058] The present invention provides positioning blocks around the interface 32 corresponding to the position sensor 43, which can provide a precise positioning reference for the moving frame 36, making the position sensor 43 detection more accurate and reliable, avoiding docking deviation; further improving the alignment accuracy of the connecting pipe 35 and the interface 32, ensuring a tight seal, reducing negative pressure leakage and abnormal tobacco conveying, and improving the stability and accuracy of pipeline switching.

[0059] The operation process of the tobacco conveying system of the present invention is as follows: During production, the tobacco output by the feeder 1 enters the third conveying pipe 34 through the first conveying pipe 21 and the hollow hose 22; the controller controls the second cylinder 41 to move according to the production command, driving the moving frame 36 to move smoothly along the track 33 via the roller 42; the position sensor 43 cooperates with the positioning blocks around the interface 32 to detect the alignment status in real time; after precise alignment, the second cylinder 41 stops moving.

[0060] Subsequently, the first cylinder 37 in the installation slot pushes the fixing plate 39 through the push rod 310, causing the connecting pipe 27 and the telescopic hose 26 to extend, so that the connecting pipe 35 and the interface 32 are tightly connected, and the sealing ring 38 ensures the sealing at the connection point; at this time, the valve 24 on the first conveying pipe 21 is opened, and the tobacco is conveyed sequentially through the third conveying pipe 34, the telescopic hose 26, the connecting pipe 27, the connecting pipe 35, the interface 32 and the second conveying pipe 23 to the corresponding rolling device. The negative pressure detector 25 monitors the negative pressure status of the pipeline in real time to ensure stable conveying.

[0061] When it is necessary to switch machines or brands, valve 24 is closed, the first cylinder 37 retracts and drives the connecting pipe 27 to separate from the interface 32, and the second cylinder 41 drives the moving frame 36 to move to the target interface 32 again. By repeating the above docking steps, the automatic switching of the tobacco conveying path can be completed.

[0062] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A tobacco shred conveying system, characterized in that, include: Wire feeder, conveying device, pipeline switching device and drive device; The conveying device includes a first conveying pipe, a hollow flexible tube, and a second conveying pipe. The two ends of the first conveying pipe are respectively connected to the tobacco feeder and the first end of the hollow flexible tube. The second conveying pipe is used to connect to the tobacco rolling device. The pipeline switching device includes a body, a docking port, a track, a third conveying pipeline, a docking connector, and a movable frame. The track is evenly spaced on the first side wall of the body, and the docking ports are evenly spaced on the second side wall of the body. The second conveying pipeline is connected to the docking port. The first end of the docking connector is connected to the movable frame, and the second end of the docking connector is connected to the docking port. The movable frame is slidably mounted on the track. The third conveying pipeline is connected to the docking connector and the second end of the hollow flexible tube, respectively. The driving device is connected to the moving frame and is used to drive the moving frame to move along the track so that the connecting pipe on the moving frame is connected to the corresponding connecting interface.

2. The tobacco conveying system according to claim 1, characterized in that, The conveying device also includes a valve, which is installed on the first conveying pipeline.

3. The tobacco conveying system according to claim 1, characterized in that, The conveying device also includes a negative pressure detector, which is installed on the second conveying pipe.

4. The tobacco conveying system according to claim 1, characterized in that, The conveying device further includes a telescopic hose and a connecting pipe. The telescopic hose is disposed inside the connecting pipe. Both ends of the telescopic hose are connected to the first end of the connecting pipe and the third conveying pipe, respectively. The second end of the connecting pipe is connected to the second conveying pipe.

5. The tobacco conveying system according to claim 4, characterized in that, The connecting pipe has a through hole and a mounting groove inside. The through hole extends through the connecting pipe along its length. The mounting groove is located on the inner wall of the through hole. The telescopic hose is located inside the through hole. The pipeline switching device further includes a first cylinder, a push rod, and a fixing plate. The fixing plate is disposed in the mounting groove of the first cylinder and on the outer wall of the connecting pipe. The two ends of the push rod are respectively connected to the output shaft of the first cylinder and the fixing plate.

6. The tobacco conveying system according to claim 1, characterized in that, The pipeline switching device also includes a sealing ring, which is disposed on the connecting pipe and located between the connecting pipe and the connecting interface.

7. The tobacco conveying system according to claim 1, characterized in that, The driving device includes a second cylinder and a plurality of rollers. The plurality of rollers are respectively disposed outside the movable frame and disposed inside the track. The output shaft of the second cylinder is connected to the movable frame and is used to drive the movable frame to move within the track.

8. The tobacco conveying system according to claim 7, characterized in that, The drive device also includes a controller and a position sensor. The controller is electrically connected to the second cylinder and the position sensor respectively. The position sensor is respectively disposed on the four sides of the moving frame and is used to detect whether the moving frame is aligned with the interface.

9. The tobacco conveying system according to claim 8, characterized in that, The pipeline switching device also includes positioning blocks, which are arranged around the docking interface and correspond to the position sensors respectively.

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