A film feeding mechanism for auxiliary sealing and cutting in tobacco logistics

Abstract

This utility model discloses a film-feeding mechanism for auxiliary sealing and cutting in tobacco logistics, belonging to the field of film sealing and packaging technology. It includes a support, a drive motor, a transmission assembly, a power shaft, a pressure shaft, and a propulsion cylinder. Two supports are provided on the cigarette pack wrapping and sealing device, with the power shaft and pressure shaft positioned parallel to each other. The power shaft and supports are rotatably connected. The drive motor is mounted on one of the supports, and its output end is connected to the power shaft via the transmission assembly, which uses a belt drive. The pressure shaft is slidably connected to the support, and the propulsion cylinder is mounted on the support. The output end of the propulsion cylinder is connected to the pressure shaft. This utility model can adaptively feed film according to the size of the cigarette pack. The power assembly drives the power shaft. When the current pack is small, the two cylinders on both sides are activated to push forward, causing the two pressure rollers to clamp the film on the power shaft. This device is not activated when the current pack is a large pack of two or more cigarettes.

Description

Technical Field

[0001] This utility model relates to a film feeding mechanism, and more particularly to a film feeding mechanism for auxiliary sealing and cutting in tobacco logistics, belonging to the field of film sealing and packaging technology. Background Technology

[0002] After the tobacco is processed into the shape commonly used for smoking, the processed cigarettes need to be packaged into small boxes, and a certain number of boxes are then packed into a carton. After the cigarette packs are packaged into cartons, they are transported in two ways. One method is to pack the cartons into cigarette boxes and transport the boxes directly; the other method is to stack the cartons together and wrap them in film to facilitate later transportation, while also providing sealing, moisture protection, and pollution prevention.

[0003] Traditionally, the wrapping of cigarette packs involves a combination of manual and mechanical processes. A stacking mechanism piles several packs of cigarettes, which are then manually transferred to a horizontal wrapping mechanism for horizontal wrapping. This horizontally wrapped cigarettes are then manually transferred to a vertical wrapping mechanism for vertical wrapping. However, manual wrapping of cigarette packs is extremely inefficient, and the wrapping process often results in wrinkles and uneven distribution of the film, leading to significant film waste, increased production costs, increased workload for operators, and wasted human resources. Therefore, fully automated cigarette pack wrapping devices have emerged, which can complete the entire process of stacking, wrapping, and unloading cigarette packs.

[0004] However, in actual use, some problems have been found with existing cigarette pack wrapping and sealing equipment. For example, when wrapping small cigarette packs (especially those containing only one carton), the packaging film can pull the pack upright due to the counter-tension during the pushing process (this usually happens with small packs, but not with large packs). Figure 6 As shown, when the smoke-pressing structure presses down and the smoke-pushing structure returns, the tobacco pack stack will be pulled back to the sealing point and cut, which can easily cause tobacco damage. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, this utility model provides a clamping film feeding mechanism for auxiliary sealing and cutting of tobacco logistics.

[0006] The technical solution adopted in this utility model is as follows: A film feeding mechanism for assisting sealing and cutting in tobacco logistics is designed and installed on a tobacco stack wrapping and sealing device to assist in film delivery, especially for wrapping stacks of a small number of tobacco cartons (e.g., 1-3 cartons). It includes a support, a drive motor, a transmission assembly, a power shaft, a pressure shaft, and a propulsion cylinder. Two supports are provided on the tobacco stack wrapping and sealing device, with the power shaft and pressure shaft positioned between them in parallel. The packaging film is fed out between the two shafts. The power shaft and the support are rotatably connected. The drive motor is mounted on one of the supports, and its output end is connected to the power shaft via the transmission assembly to drive its rotation. The transmission assembly uses a belt drive. The pressure shaft is slidably connected to the support, and the propulsion cylinder is mounted on the support. The output end of the propulsion cylinder is connected to the pressure shaft. With the above structure, when it is necessary to assist in the film output of the cigarette pack wrapping and sealing equipment, the propulsion cylinder starts to drive the pressure shaft to slide. The sliding of the pressure shaft adjusts the distance between the pressure shaft and the power shaft, so that the two have a certain clamping force on the packaging film passing between them. Then, the drive motor drives the power shaft to rotate, thereby clamping and feeding the packaging film, thus assisting in the film output.

[0007] Furthermore, this design also includes a pressure roller, which is mounted on the pressure shaft. The pressure roller includes a fixed part and a rotating part. The fixed part is fixed to the pressure shaft by screws, and the rotating part is rotatably connected to the fixed part. This structural design reduces the friction between the membrane material and the pressure shaft, thereby reducing tensile deformation and wear of the membrane material, and improving the integrity of the membrane material and the sealing quality.

[0008] Furthermore, a guide rod is provided on the support, and guide holes are respectively provided at both ends of the pressure shaft, with the guide rod inserted into the guide holes. The guide rod ensures that the pressure shaft moves linearly along a fixed trajectory during movement, avoiding skewing or shaking, thereby ensuring the stability of membrane material transmission. The mating structure of the guide rod and guide holes provides rigid support for the pressure shaft, limiting its lateral displacement and preventing tilting of the pressure shaft due to uneven thrust from the propulsion cylinder, ensuring uniform pressure applied to the membrane material by the pressure roller.

[0009] Furthermore, the support includes a first support and a second support. The first support is a C-shaped plate, and the second support includes a C-shaped portion and a mounting portion protruding from one side wall of the C-shaped portion. The two are integrally formed. Support blocks are provided in the C-shaped cavities of the first support and the C-shaped cavities of the second support. The guide rod is inserted from the outside of the support and passes through the support block. The drive motor is installed in the cavity formed by the lower end of the C-shaped portion of the second support and the mounting portion. The C-shaped structure of the first and second supports provides basic support. The C-shaped structure design reduces weight while ensuring load-bearing requirements. After the support block is embedded in the C-shaped cavity, it forms a guide rod installation reference to ensure motion accuracy. The second support also integrates a drive motor cavity, optimizing space utilization.

[0010] Furthermore, each end of the pressure shaft is provided with a fixing hole, and the output shaft of the propulsion cylinder passes through the fixing hole and is fixed with a lock nut. The output shaft of the propulsion cylinder passing through the fixing hole and being locked with the nut enables seamless linear thrust transmission, ensuring that the pressure shaft moves along a predetermined trajectory under the constraint of the guide rod, avoiding deviation or vibration during membrane material transport; the structure is simplified and maintenance is convenient.

[0011] Furthermore, this design also includes a detection mechanism and a controller. The detection mechanism, the propulsion cylinder, and the drive motor are electrically connected to the controller. The detection mechanism and controller are respectively installed on the cigarette pack wrapping and sealing equipment. The detection mechanism detects the size of the cigarette pack to be wrapped and transmits the detection data to the controller. The controller controls the start and stop of the propulsion cylinder and the drive motor. This achieves intelligent closed-loop control. The detection mechanism measures the dimensions of the cigarette pack (e.g., width / height) in real time. The data is processed by the controller to control the start and stop of the propulsion cylinder and the drive motor, thereby achieving active film feeding. Further optimization could involve the controller controlling the cylinder stroke and the motor speed to control the clamping force on the packaging film, thus providing different sizes of clamping film for cigarette packs consisting of one, two, or three packs, achieving more precise control.

[0012] Furthermore, the detection mechanism is a weight sensor or a vision inspection device. The weight sensor detects the weight of the tobacco rolls to be wrapped, thereby calculating its size or the number of tobacco rolls it contains. Alternatively, the vision inspection device uses a high-resolution camera and image processing algorithms to identify the length, width, and height of the tobacco rolls in real time, thereby calculating its size or the number of tobacco rolls it contains. Based on this, the controller determines whether to intervene in the conveying of the packaging film and adjusts the start and stop of the propulsion cylinder and drive motor, especially adjusting the stroke of the propulsion cylinder and the start duration of the drive motor.

[0013] Furthermore, the tobacco pack wrapping and sealing equipment includes a film output machine, a tobacco stack transfer machine, a tobacco pushing mechanism, and a wrapping machine. The tobacco stack transfer machine is located between the film output machine and the wrapping machine. The tobacco pushing mechanism is located on the film output machine and faces the tobacco stack transfer machine, and is used to push the tobacco packs on the tobacco stack transfer machine into the wrapping machine. The wrapping machine includes a frame and an upper film output roller group, a lower film output roller group, and a sealing and cutting mechanism located on the frame. The upper and lower ends of the film output machine respectively release packaging film, which passes through the upper film output roller group and the lower film output roller group respectively, and is then sealed by the sealing and cutting mechanism. The film feeding mechanism is located at the upper film output roller group.

[0014] Furthermore, the sealing and cutting mechanism includes a moving blade assembly and a smoke-pressing mechanism disposed on the upper part of the frame, and a fixed blade assembly disposed on the lower part of the machine tool. The moving blade assembly includes a transmission belt assembly and a hot blade disposed on the transmission belt assembly. The hot blade includes a blade groove and blade bodies located on both sides of the blade groove. A heating tube is disposed in the middle of the hot blade. The fixed blade assembly includes a blade holder and a cutting blade disposed in the middle of the blade holder. The cutting blade is retractable.

[0015] Furthermore, both the smoke pushing mechanism and the smoke pressing mechanism drive the rectangular plate through a telescopic rod, making the structure simple and easy to implement.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention can be used to add a film feeding function to a cigarette pack wrapping and sealing equipment, enabling pre-feeding of film for small cigarette packs and eliminating the need for film feeding for large cigarette packs. It features automated film feeding that adapts to different cigarette pack sizes, effectively reducing cigarette damage when wrapping small packs. This invention integrates the cigarette pushing mechanism, cigarette pressing mechanism, and sealing and cutting mechanism of the cigarette pack wrapping and sealing equipment, achieving efficient and low-damage wrapping of cigarette packs with a tight and proper seal.

[0018] To address the issue of insufficient cigarette packs, the film feeding mechanism is activated during the sealing and cutting process to deliver the film in advance. This prevents the cigarette packs from being pulled upright and damaged, thus reducing cigarette loss. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the isometric view of this utility model.

[0021] Figure 2 This is a top view schematic diagram of the present invention.

[0022] Figure 3 This is a schematic diagram of the present invention installed on a tobacco stack wrapping and sealing device, with the tobacco stack being transferred to the tobacco stacker.

[0023] Figure 4 for Figure 3 A magnified view of part A.

[0024] Figure 5 This is a schematic diagram showing the present invention installed on a tobacco stack wrapping and sealing equipment with the tobacco stack inside the wrapping machine.

[0025] Figure 6 This is a schematic diagram of how an existing tobacco stack wrapping and sealing device (without a film feeding device) wraps small tobacco packages.

[0026] In the diagram: 1. First support; 2. Second support; 3. Drive motor; 4. Transmission assembly; 5. Power shaft; 6. Pressure shaft; 7. Propulsion cylinder; 8. Pressure roller; 9. Guide rod; 10. C-shaped section; 11. Placement section; 12. Support block; 13. Film output machine; 14. Transfer tobacco stack machine; 15. Tobacco pushing mechanism; 16. Wrapping machine; 17. Frame; 18. Upper film output roller group; 19. Lower film output roller group; 20. Moving knife assembly; 21. Tobacco pressing mechanism; 22. Fixed knife assembly; 23. Transmission belt assembly; 24. Hot knife; 25. Knife groove; 26. Knife body; 27. Heating element; 28. Knife holder; 29. ​​Cutting knife; 30. Tobacco stack; 31. Packaging film. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] Example 1

[0030] like Figure 1-5The diagram shows a film-feeding mechanism for auxiliary sealing and cutting in tobacco logistics. It should be noted that this mechanism is mainly installed on tobacco stack wrapping and sealing equipment to assist in film delivery, but it can also be used on other packaging equipment requiring auxiliary film delivery, demonstrating good versatility. It includes supports, a drive motor 3, a transmission assembly 4, a power shaft 5, a pressure shaft 6, and a propulsion cylinder 7. Two supports are provided on the tobacco stack wrapping and sealing equipment (mainly on its frame 17), with the power shaft 5 and pressure shaft 6 positioned parallel to each other. The power shaft 5 is rotatably connected to the supports. The drive motor 3 is mounted on one of the supports, and its output end is connected to the power shaft 5 via the transmission assembly 4. The transmission assembly 4 uses a belt drive, but can also use gear drives, coupling structures, etc., employing existing technologies. The pressure shaft 6 is slidably connected to the support, meaning that both ends of the pressure shaft 6 are respectively mounted on the corresponding supports and can slide towards or away from the power shaft 5. The propulsion cylinder 7 is mounted on the support, and the output end of the propulsion cylinder 7 is connected to the pressure shaft 6, preferably in a detachable manner. More specifically, the film feeding mechanism of this embodiment also includes a pressure roller 8, which is provided on the pressure shaft 6. The pressure roller 8 includes a fixed part and a rotating part. The fixed part is fixed to the pressure shaft 6 by screws, and the rotating part is rotatably connected to the fixed part, typically with the rotating part nested in the fixed part, and a bearing is provided between them.

[0031] In this embodiment, the specific structure for the sliding of the pressure shaft 6 can be as follows: a guide rod 9 is provided on the support, and guide holes are respectively provided at both ends of the pressure shaft 6. The guide rod 9 is inserted into the guide holes, so that the pressure shaft 6 can slide along the guide rod 9. The specific structure for connecting the pressure shaft 6 to the cylinder can be as follows: a fixing hole is provided at both ends of the pressure shaft 6, and the output shaft of the propulsion cylinder 7 passes through the fixing hole and is fixed with a lock nut.

[0032] Example 2

[0033] This embodiment is a further optimization and refinement of the support structure based on Embodiment 1. In this embodiment, the support includes a first support 1 and a second support 2 (i.e., two supports installed on the tobacco stack wrapping and sealing equipment (mainly on its frame 17)). The first support 1 is made of a C-shaped plate, and the second support 2 includes a C-shaped part 10 and a placement part 11 protruding from one side wall of the C-shaped part 10. The two are integrally formed. A support block 12 is provided in the C-shaped cavity of the first support 1 and the C-shaped cavity of the C-shaped part 10 of the second support 2. The support block 12 is made of rectangular blocks and can be installed by screws. The guide rod 9 is inserted from the outside of the support and passes through the support block 12. Its two ends rest on the support and the support block 12 respectively. The drive motor 3 is installed in the cavity formed by the lower end of the C-shaped part 10 of the second support 2 and the placement part 11.

[0034] Example 3

[0035] This embodiment is a further optimization and refinement of the film feeding mechanism based on Embodiment 2. The film feeding mechanism for auxiliary sealing and cutting of tobacco logistics described in this embodiment also includes a detection mechanism and a controller (not shown in the accompanying drawings). The detection mechanism, the propulsion cylinder 7, and the drive motor 3 are electrically connected to the controller. The detection mechanism and the controller are respectively installed on the tobacco stack wrapping and sealing equipment (the detection mechanism is usually installed on the transfer tobacco stack machine 14 to detect the size or quantity of the tobacco stacks, while the controller can be installed on any one of the film output machine 13, the transfer tobacco stack machine 14, and the wrapping machine 16, for the convenience of the operator). The detection mechanism is used to detect the size of the tobacco stacks to be wrapped and transmit the detection data to the controller. This mechanism can be implemented using existing technologies, such as a weight sensor or a visual inspection device, and can be used according to its conventional settings. The controller controls the start and stop of the propulsion cylinder 7 and the drive motor 3; for example, it can be a PLC controller, which can also use existing technologies.

[0036] Example 4

[0037] This embodiment is a further refinement of the tobacco stack wrapping and sealing equipment used in conjunction with the film feeding mechanism, based on Embodiment 3. In this embodiment, the tobacco stack wrapping and sealing equipment includes a film output machine 13, a tobacco stack transfer machine 14, a tobacco pushing mechanism 15, and a wrapping machine 16. The tobacco stack transfer machine 14 is located between the film output machine 13 and the wrapping machine 16. The tobacco pushing mechanism 15 is located on the film output machine 13 and faces the tobacco stack transfer machine 14. The wrapping machine 16 includes a frame 17 and an upper film output roller group 18, a lower film output roller group 19, and a sealing and cutting mechanism mounted on the frame 17. Initially, the film output machine 13 releases tobacco from its upper and lower ends respectively. The packaging film 31 is sealed by the sealing and cutting mechanism after passing through the upper film exit roller group 18 and the lower film exit roller group 19 respectively. When wrapping the cigarette pack 30, the cigarette pack 30 is pushed into the sealing and cutting position, and then the cigarette pushing mechanism 15 is withdrawn. The sealing and cutting mechanism completes the heat sealing of the film between the cigarette pack 30 and the film exiting machine 13, and cuts it from the middle of the heat seal. After cutting, the film coming out from the upper and lower ends of the film exiting machine 13 remains connected, and the film wrapped on the cigarette pack 30 also remains tightly wrapped. The film feeding mechanism is set at the upper film exit roller group 18.

[0038] More specifically, the sealing and cutting mechanism includes a moving blade assembly 20 and a smoke-pressing mechanism 21 mounted on the upper part of the frame 17, and a fixed blade assembly 22 mounted on the lower part of the machine tool. The moving blade assembly 20 includes a transmission belt assembly 23 and a hot blade 24 mounted on the transmission belt assembly 23. The hot blade 24 can be raised and lowered by the transmission belt assembly 23. The hot blade 24 includes a blade groove 25 and blade bodies 26 located on both sides of the blade groove 25. A heating element 27 is provided in the middle of the hot blade 24. The fixed blade assembly 22 includes a blade holder 28 and a cutting blade 29 located in the middle of the blade holder 28. The cutting blade 29 is telescopic, for example, driven by a cylinder. The smoke-pushing mechanism 15 and the smoke-pressing mechanism 21 both drive the rectangular plate through a telescopic rod. The telescopic rod can be, for example, a pneumatic telescopic rod (cylinder assembly), an electric telescopic rod, a lead screw, a rack and pinion, or other structures. When sealing and cutting the packaging film 31, the hot knife 24 moves down under the drive of the transmission belt assembly 23 until it comes into contact with the knife holder 28 and presses down on the two layers of packaging film 31. Then the heating tube 27 heats up instantly to complete the sealing of the two layers of packaging film 31. Then the cutter 29 pops out and enters the knife groove 25 to complete the cutting of the heat-sealed part of the packaging film 31.

[0039] When using this application, it is installed on the frame 17 of the cigarette pack wrapping and sealing equipment described in Embodiment 4. When there are cigarette packs 30 stacked on the transfer cigarette stacker 14, the detection mechanism detects the number of cigarettes in the cigarette pack 30. When the detection result is a small cigarette pack (e.g., only one cigarette), the controller controls the film feeding mechanism to start, clamping the packaging film 31 and assisting the film output roller group 18 to output the film. After packaging is completed, the small cigarette pack wrapped with the packaging film 31 is sent out. Then the detection mechanism detects the next set of cigarette packs to be wrapped. If it is a large cigarette pack (the definition of large and small cigarette packs can be set by yourself. For example, a cigarette pack containing only one or two cigarettes can be set as a small cigarette pack, or a cigarette pack containing two or more cigarettes can be set as a large cigarette pack), the film feeding mechanism exits the film feeding process. Generally speaking, the size of the cigarette packs to be wrapped in a production cycle is usually fixed, so the film feeding mechanism can be started or stopped periodically. However, it is indispensable in order to reduce cigarette waste. If the film feeding mechanism is always involved in feeding the film regardless of the size of the cigarette packs to be wrapped, it is unnecessary and not conducive to reducing production costs.

[0040] The specific embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A pinch film mechanism for tobacco logistics auxiliary sealing and cutting, installed on a cigarette stack wrapping film sealing and packaging device to assist in film output, characterized in that: The device includes a support, a drive motor (3), a transmission assembly (4), a power shaft (5), a pressure shaft (6), and a propulsion cylinder (7). The tobacco stack wrapping and sealing device is provided with two supports, and the power shaft (5) and the pressure shaft (6) are arranged between the two supports. The two are arranged in parallel, and the power shaft (5) is rotatably connected to the support. The drive motor (3) is installed on one of the supports, and its output end is connected to the power shaft (5) through the transmission assembly (4). The transmission assembly (4) adopts belt drive. The pressure shaft (6) is slidably connected to the support. The propulsion cylinder (7) is installed on the support, and the output end of the propulsion cylinder (7) is connected to the pressure shaft (6).

2. The pinch film mechanism for tobacco stream assisted seal cutting of claim 1, wherein: It also includes a pressure roller (8), which is provided on the pressure shaft (6). The pressure roller (8) includes a fixed part and a rotating part. The fixed part is fixed to the pressure shaft (6) by screws, and the rotating part is rotatably connected to the fixed part.

3. The pinch film mechanism for tobacco stream assisted seal cutting of claim 1, wherein: The support is provided with a guide rod (9), and the two ends of the pressure shaft (6) are respectively provided with guide holes, and the guide rod (9) is inserted into the guide hole.

4. The pinch film mechanism for tobacco stream assisted seal cutting of claim 3, wherein: The support includes a first support (1) and a second support (2). The first support (1) is made of a C-shaped plate. The second support (2) includes a C-shaped part (10) and a mounting part (11) protruding from one side wall of the C-shaped part (10). The two are integrally formed. A support block (12) is provided in the C-shaped cavity of the first support (1) and the C-shaped cavity of the C-shaped part (10) of the second support (2). The guide rod (9) is inserted from the outside of the support and passes through the support block (12). The drive motor (3) is installed in the cavity formed by the lower end of the C-shaped part (10) of the second support (2) and the mounting part (11).

5. The pinch film mechanism for tobacco stream assisted seal cutting of claim 3, wherein: The pressure shaft (6) has fixing holes at both ends, and the output shaft of the propulsion cylinder (7) passes through the fixing holes and is fixed with a lock nut.

6. The pinch film mechanism for tobacco stream assisted seal cutting of claim 1, wherein: It also includes a detection mechanism and a controller. The detection mechanism, the propulsion cylinder (7) and the drive motor (3) are electrically connected to the controller. The detection mechanism and the controller are respectively set on the tobacco stack wrapping and sealing equipment. The detection mechanism is used to detect the size of the tobacco stack to be wrapped and transmit the detection data to the controller. The controller controls the propulsion cylinder (7) and the drive motor (3) to start and stop.

7. The pinch film mechanism for tobacco stream assisted seal cutting of claim 6, wherein: The detection mechanism is a weight sensor or a visual inspection device.

8. The pinch film mechanism for tobacco stream assisted seal cutting of claim 1, wherein: The tobacco stack wrapping and sealing equipment includes a film output machine (13), a tobacco stack transfer machine (14), a tobacco pushing mechanism (15), and a wrapping machine (16). The tobacco stack transfer machine (14) is located between the film output machine (13) and the wrapping machine (16). The tobacco pushing mechanism (15) is located on the film output machine (13) and faces the tobacco stack transfer machine (14). The wrapping machine (16) includes a frame (17) and an upper film output roller group (18), a lower film output roller group (19), and a sealing and cutting mechanism located on the frame (17). The film output machine (13) outputs packaging film (31) from its upper and lower ends, and the film passes through the upper film output roller group (18) and the lower film output roller group (19) respectively before being sealed by the sealing and cutting mechanism. The film feeding mechanism is located at the upper film output roller group (18).

9. The pinch film mechanism for tobacco stream assisted seal cutting of claim 8, wherein: The sealing and cutting mechanism includes a moving knife assembly (20) and a smoke suppressing mechanism (21) disposed on the upper part of the frame (17), and a fixed knife assembly (22) disposed on the lower part of the machine tool. The moving knife assembly (20) includes a transmission belt assembly (23) and a hot knife (24) disposed on the transmission belt assembly (23). The hot knife (24) includes a knife groove (25) and a knife body (26) located on both sides of the knife groove (25). A heating tube (27) is disposed in the middle of the hot knife (24). The fixed knife assembly (22) includes a knife holder (28) and a cutter (29) disposed in the middle of the knife holder (28). The cutter (29) is retractable.

10. The pinch film mechanism for tobacco stream assisted seal cutting of claim 9, wherein: Both the smoke pushing mechanism (15) and the smoke pressing mechanism (21) drive the rectangular plate through a telescopic rod.

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