A tobacco rod blocking and stacking mechanism for a tobacco rod packaging machine

Abstract

The utility model provides a cigarette rod blocking material stacking mechanism of cigarette rod packing machine, include: frame, first conveyer, second conveyer, lift support platform, baffle bar, first conveyer, second conveyer, lift support platform all install on the frame, and one end of first conveyer is connected with one end of second conveyer, lift support platform is located the below of second conveyer, baffle bar both ends perpendicularly install between second conveyer, second conveyer both sides are equipped with horizontal moving mechanism, horizontal moving mechanism can drive second conveyer to move to both sides. The utility model lets the cigarette rod to be sent to second conveyer after first conveyer, and because of the obstruction of baffle bar, and form a row, second conveyer can make the cigarette rod that is arranged to fall vertically after horizontal moving mechanism horizontal moving, make the cigarette rod stack multilayer, the position of the cigarette rod that is arranged is unified when falling vertically, to push into carton fast, improve equipment stability, improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automated packaging technology, and in particular to a cigarette packing stacking mechanism for a cigarette packing machine. Background Technology

[0002] In traditional cigarette production, after cigarettes are made and packaged, the cigarette packs need to be packed into cardboard boxes for easy transportation. With the development of automated machinery, many cigarette manufacturers have begun to use automated equipment to pack cigarettes. For automated cigarette pack packaging equipment, before packing, the cigarette packs need to be stacked and then pushed into the cardboard box all at once. For example, Chinese patent application number 202410688174.5 discloses a cigarette pack stacking and conveying device, which relates to the field of tobacco machinery technology. It includes: a first conveyor belt, a second conveyor belt, and a support plate with their top surfaces parallel to each other. The output end of the first conveyor belt is located at one end of the support plate along its length, and the input end of the second conveyor belt is located on one side of the support plate along its length. The input end of the first conveyor belt and the output end of the second conveyor belt are far apart from each other. The side of the top surface of the support plate away from the first conveyor belt is perpendicularly connected to a first baffle, and a pusher plate is provided on the top surface of the support plate away from the second conveyor belt. The device can only stack one row of cigarette sticks, which is inefficient. In practice, according to the falling method of the application, the cigarette sticks are prone to tipping over when falling. Therefore, it is necessary to design a cigarette stick stacking mechanism for a cigarette stick packaging machine that can stack multiple rows of cigarette sticks. After stacking, the cigarette sticks can be stacked in multiple layers by falling in a straight line, so as to quickly push them into the carton, improve equipment stability, and increase production efficiency. Utility Model Content

[0003] To address the aforementioned issues, this invention proposes a cigarette packing and stacking mechanism for a cigarette packing machine. This mechanism can stack multiple rows of cigarette packs, and after stacking, the cigarette packs can be arranged in a straight drop manner to allow for multiple layers of stacking, facilitating rapid insertion into the carton, thereby improving equipment stability and production efficiency.

[0004] This utility model is achieved through the following technical solution: This utility model proposes a cigarette packing and stacking mechanism for a cigarette packing machine, comprising: a frame, a first conveyor, a second conveyor, a lifting support platform, and a stop bar. The first conveyor, the second conveyor, and the lifting support platform are all mounted on the frame, with one end of the first conveyor connected to one end of the second conveyor. The lifting support platform is located below the second conveyor, and the two ends of the stop bar are vertically installed between the second conveyors. A transverse movement mechanism is provided on both sides of the second conveyor, which can drive the second conveyor to move to both sides.

[0005] Furthermore, the second conveyor includes a first mounting plate, a conveyor belt, a driven wheel, and a driving wheel. There are two first mounting plates, which are installed on the lower part of the transverse mechanism. The driven wheel is mounted on the first mounting plate via a rotating shaft. A first drive motor is provided on the frame, and drive shafts are provided on both sides of the first drive motor. The driving wheel is mounted on the drive shaft. The conveyor belt is wound around the driven wheel and the driving wheel, and the upper end surface of the conveyor belt is flush with the first conveyor.

[0006] Furthermore, the first mounting plate is provided with a clamping plate, which is located below the conveyor belt and is parallel to the direction of movement of the conveyor belt.

[0007] Furthermore, the drive shaft is provided with a keyway, the drive wheel is slidably mounted on the drive shaft via a connecting key, the drive wheel is provided with a circumferential groove, and the first mounting plate is provided with a roller, the roller extending radially into the groove of the drive wheel.

[0008] Furthermore, the lateral movement mechanism includes a second mounting plate, a first guide rod, a first connecting block, a second connecting block, and a telescopic rod. The upper part of the second mounting plate is connected to the frame. The first guide rod is vertically installed on the outer side of the second mounting plate. The first mounting plate is slidably connected to the first guide rod. The first connecting block is fixedly installed on the outer side of the second mounting plate. A third connecting block is provided on the outer side of the first mounting plate, and the third connecting block is provided with a sliding groove. The middle part of the second connecting block is rotatably installed on the first connecting block. The lower part of the second connecting block is slidably connected to the sliding groove. One end of the telescopic rod is connected to the second mounting plate, and the other end of the telescopic rod is connected to one side of the second connecting block.

[0009] Furthermore, the second mounting plate is provided with a plurality of second connecting blocks, and the first mounting plate is provided with a corresponding number of third connecting blocks, and the plurality of second connecting blocks are interconnected by connecting rods.

[0010] Furthermore, the frame is provided with a second guide rod, the second mounting plate is slidably connected to the second guide rod through a sleeve, and the sleeve is provided with a locking bolt.

[0011] Furthermore, the frame is equipped with adjustment plates at both the top and bottom, and the adjustment plates have elongated holes. The stop bar is connected to the adjustment plates by bolts.

[0012] Furthermore, the lifting support platform is provided with a lifting mechanism on its side, and the lifting mechanism is provided with a lead screw, a second drive motor, and a lifting block. The lead screw is installed in the lifting mechanism through bearings, the second drive motor is connected to the lead screw through a synchronous belt, the lifting block is slidably connected to the lifting mechanism, and the lifting block is connected to the lead screw through threads. The side of the lifting support platform is connected to the lifting block, and the lifting support platform is provided with two parallel stainless steel cover plates, and the stop bar is located between the two stainless steel cover plates.

[0013] Furthermore, a weighing mechanism is installed inside the frame. The weighing mechanism includes a platform and a weighing sensor. The lower part of the platform is connected to the frame through the weighing sensor. The platform is located between two stainless steel cover plates, and the stop bar is located on one side of the platform.

[0014] The beneficial effects of this utility model are as follows: After the cigarette sticks are transported from the first conveyor to the second conveyor, they are arranged in a row due to the obstruction of the baffle. After the second conveyor moves laterally through the lateral movement mechanism, the arranged cigarette sticks can fall vertically, so that the cigarette sticks are stacked in multiple layers. When they fall vertically, the arranged cigarette sticks are in a uniform position, which makes it easier to push them into the carton quickly, improve the stability of the equipment and increase production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the connection between the second conveyor and the transverse mechanism of this utility model; Figure 3 This is a connection diagram of the second conveyor of this utility model; Figure 4 This is a schematic diagram of the structure of one side of the second conveyor of this utility model; Figure 5 This is a schematic diagram of the transverse movement mechanism of this utility model; Figure 6 This is a schematic diagram of the lifting mechanism of this utility model; In the diagram: 1-Frame, 2-First conveyor, 3-Second conveyor, 4-Lifting support platform, 5-Stop bar, 6-Transverse mechanism, 7-First mounting plate, 8-Conveyor belt, 9-Driven wheel, 10-Drive wheel, 11-First drive motor, 12-Drive shaft, 13-Clamping plate, 14-Keyway, 15-Roller, 16-Second mounting plate, 17-First guide rod, 18-First connecting block, 19-Second connecting block, 20-Third connecting block, 21-Telescopic rod, 22-Connecting rod, 23-Second guide rod, 24-Sleeve, 25-Locking bolt, 26-Adjusting plate, 27-Lifting mechanism, 28-Second drive motor, 29-Lifting block, 30-Stainless steel cover plate, 31-Platform, 32-Blocking mechanism. Detailed Implementation

[0016] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Throughout the description, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0018] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" and "second" may explicitly or implicitly include at least one of the stated features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0019] like Figures 1 to 6 As shown, an embodiment of this utility model provides a cigarette packing and stacking mechanism for a cigarette packing machine, including: a frame 1, a first conveyor 2, a second conveyor 3, a lifting support platform 4, and a stop bar 5. The first conveyor 2, the second conveyor 3, and the lifting support platform 4 are all mounted on the frame 1, and one end of the first conveyor 2 is connected to one end of the second conveyor 3. The lifting support platform 4 is located below the second conveyor 3, and the two ends of the stop bar 5 are vertically installed between the second conveyors 3. A transverse movement mechanism 6 is provided on both sides of the second conveyor 3, which can drive the second conveyor 3 to move to both sides.

[0020] When the cigarette packing machine is working, the cigarette packs are packaged and then moved to the first conveyor 2 via the feeding equipment. From there, they are moved to the second conveyor 3. Because the second conveyor 3 has a stop bar 5 in the middle, the cigarette packs are tightly packed under the obstruction of the stop bar 5. When the number of packs reaches the set quantity, the last cigarette pack will block the photoelectric switch. Upon receiving the signal, the controller controls the blocking cylinder in the blocking mechanism 32 to extend, causing the blocking mechanism 32 to rise. Simultaneously, the telescopic rod 21 retracts, driving the second connecting block 19 to rotate. Since the second connecting blocks 19 are interconnected via the connecting rod 22, after the second connecting block 19 rotates, its… The lower end will drive the third connecting block 20 to move. Since the third connecting block 20 is fixedly connected to the first mounting plate 7, and the first mounting plate 7 is constrained by the first guide rod 17, when the telescopic rod 21 retracts, the first mounting plate 7 moves to both sides, increasing the gap between the conveyor belts 8. This allows the cigarette sticks to fall freely onto the lifting support platform 4 at the bottom of the second conveyor 3. After falling, the lifting support platform 4 descends by the lifting mechanism 27 by the same distance as the thickness of the cigarette sticks, so that the top row of cigarette sticks on the lifting support platform 4 is 1cm to 3cm away from the top of the conveyor belt 8, maintaining an appropriate falling distance and preventing the cigarette sticks from becoming loose after falling. After the cigarette sticks have fallen, the telescopic rod 21 extends, causing the first mounting plate 7 to reset, thereby arranging the next row of cigarette sticks. When the first mounting plate 7 resets, the clamping plate 13 can push and organize the top row of cigarette sticks to keep them neat. At the same time, the blocking cylinder retracts, causing the blocking mechanism 32 to descend, allowing the cigarette sticks on the first conveyor 2 to continue moving onto the second conveyor 3. After repeating a certain number of times, the cigarette sticks can be arranged in a certain number of rows and layers on the lifting support platform 4. Then the lifting support platform 4 continues to descend. When the height of the lifting support platform 4 is lower than the loading platform 31, the weight of the cigarette sticks is evenly pressed on the loading platform 31. The total weight of the cigarette sticks can be obtained through the weighing sensor at the bottom of the loading platform 31. After the weighing is qualified, the stacked cigarette sticks can be pushed into the packaging box by the cigarette stick pushing device.

[0021] This device allows smaller cigarette sticks to be stacked in multiple rows and layers on the lifting support platform 4. After the cigarette sticks are arranged, they are stacked by falling vertically. The falling distance is small, and the cigarette sticks are not easy to loosen after falling. When the first mounting plate 7 is reset, it can organize the top row of cigarette sticks so that the multiple layers of cigarette sticks can be arranged neatly, which is convenient for the final packing operation.

[0022] In a preferred embodiment, such as Figure 2 , Figure 3 , Figure 4As shown, the second conveyor 3 includes a first mounting plate 7, a conveyor belt 8, a driven wheel 9, and a driving wheel 10. There are two first mounting plates 7, which are installed on the lower part of the transverse mechanism 6. The driven wheel 9 is mounted on the first mounting plate 7 via a rotating shaft. A first drive motor 11 is provided on the frame 1, and drive shafts 12 are provided on both sides of the first drive motor 11. The driving wheel 10 is mounted on the drive shaft 12. The conveyor belt 8 is wound around the driven wheel 9 and the driving wheel 10, and the upper end surface of the conveyor belt 8 is flush with the first conveyor 2. The driving wheel 10 drives the conveyor belt 8, which can move the cigarette sticks on the second conveyor 3. The second conveyor 3 only supports the two ends of the cigarette sticks through the conveyor belt 8, so that the cigarette sticks can fall onto the lifting support platform 4 when the second conveyor 3 moves transversely, achieving longitudinal stacking.

[0023] In a preferred embodiment, such as Figure 2 , Figure 3 , Figure 4 As shown, the first mounting plate 7 is equipped with a clamping plate 13, which is located below the conveyor belt 8 and parallel to the direction of movement of the conveyor belt 8. When the first mounting plate 7 retracts and resets, the clamping plate 13 presses against both sides of the tobacco strips, tidying them up and keeping them neatly arranged on the first mounting plate 7, preventing them from becoming loose after being stacked in multiple layers. Since the clamping plate 13 occupies a certain amount of space, the conveyor belt 8 needs to be equipped with driven wheels 9 to pass over the clamping plate 13. The first mounting plate 7 is equipped with a partition plate, which is placed between the conveyor belts 8 to prevent them from colliding with each other when the conveyor belts 8 are moving in a circular motion. The partition plate provides support for the tobacco strips.

[0024] Specifically, such as Figure 2 , Figure 4 As shown, the drive shaft 12 is provided with a keyway 14, and the drive wheel 10 is slidably mounted on the drive shaft 12 via a connecting key. The drive wheel 10 is provided with a circumferential groove, and the first mounting plate 7 is provided with a roller 15, which extends radially into the groove of the drive wheel 10, allowing the drive wheel 10 to move with the first mounting plate 7 and preventing the conveyor belt 8 from detaching from the drive wheel 10. Due to the function of the keyway 14 and the connecting key, the drive wheel 10 can also be driven by the drive shaft 12 during lateral movement.

[0025] Preferably, such as Figure 2 , Figure 3 , Figure 5As shown, the transverse mechanism 6 includes a second mounting plate 16, a first guide rod 17, a first connecting block 18, a second connecting block 19, and a telescopic rod 21. The upper part of the second mounting plate 16 is connected to the frame 1. The first guide rod 17 is vertically installed on the outside of the second mounting plate 16. The first mounting plate 7 is slidably connected to the first guide rod 17. The first connecting block 18 is fixedly installed on the outside of the second mounting plate 16. A third connecting block 20 is provided on the outside of the first mounting plate 7, and a sliding groove is provided on the third connecting block 20. The middle part of the second connecting block 19 is rotatably installed on the first connecting block 18. The lower part of the second connecting block 19 is slidably connected to the sliding groove. One end of the telescopic rod 21 is connected to the second mounting plate 16, and the other end of the telescopic rod 21 is connected to one side of the second connecting block 19. The first guide rod 17 is used to limit the first mounting plate 7, so that the first mounting plate 7 can only move along the axis of the first guide rod 17. The second connecting block 19 can be deflected under the drive of the telescopic rod 21, thereby driving the third connecting block 20 to move. The third connecting block 20 is provided with a sliding groove, so that the third connecting block 20 can counteract the lateral movement and only move axially along the first guide rod 17. This achieves the effect of driving the first mounting plate 7 to move laterally on the first guide rod 17 through the telescopic rod 21. After the first mounting plate 7 moves, it can drive the conveyor belt 8 to move together. After the spacing of the conveyor belt 8 increases, the cigarette strips on the conveyor belt 8 fall freely onto the lifting support platform 4, achieving longitudinal stacking.

[0026] Specifically, such as Figure 2 , Figure 3 , Figure 5 As shown, the second mounting plate 16 is provided with a plurality of second connecting blocks 19, and the first mounting plate 7 is provided with a corresponding number of third connecting blocks 20. The plurality of second connecting blocks 19 are connected to each other through connecting rods 22, so that the plurality of second connecting blocks 19 can move synchronously, so that the first mounting plate 7 can slide smoothly on the first guide rod 17, release the arranged cigarette strips, and let them fall onto the lifting support platform 4 to achieve stacking.

[0027] Preferably, such as Figure 1 , Figure 2 As shown, the frame 1 is provided with a second guide rod 23, and the second mounting plate 16 is slidably connected to the second guide rod 23 through a sleeve 24. The sleeve 24 is provided with a locking bolt 25. The spacing of the conveyor belt 8 can be controlled by adjusting the position of the second mounting plate 16 on the second guide rod 23, so as to accommodate tobacco strips of different lengths.

[0028] Specifically, such as Figure 6 As shown, the upper and lower parts of the frame 1 are equipped with adjustment plates 26. The upper and lower adjustment plates 26 are designed to adapt to the space. The adjustment plates 26 are provided with elongated holes. The stop bar 5 is connected to the adjustment plate 26 through a fixed handle. The stop bar 5 can be adjusted on the adjustment plate 26 to adjust the mechanism of the equipment to accommodate the stacking of tobacco strips of different widths.

[0029] Preferably, such as Figure 6 As shown, the lifting support platform 4 has a lifting mechanism 27 on its side. The lifting mechanism 27 has a lead screw, a second drive motor 28, and a lifting block 29. The lead screw is installed in the lifting mechanism 27 through bearings. The second drive motor 28 is connected to the lead screw through a synchronous belt. The lifting block 29 is slidably connected to the lifting mechanism 27 and is connected to the lead screw through threads. The side of the lifting support platform 4 is connected to the lifting block 29. The lifting support platform 4 has two parallel stainless steel cover plates 30. The stop bar 5 is located between the two stainless steel cover plates 30. The lifting mechanism 27 adopts a relatively mature lead screw drive method. The second drive motor 28 drives the lead screw, so that the lifting block 29 can move up and down along the lifting mechanism 27, thereby driving the lifting support platform 4 to move longitudinally.

[0030] Specifically, such as Figure 6 As shown, a weighing mechanism is installed inside the frame 1. The weighing mechanism includes a platform 31 and a weighing sensor. The lower part of the platform 31 is connected to the frame 1 via the weighing sensor. The platform 31 is located between two stainless steel cover plates 30, and the stop bar 5 is located on one side of the platform 31. When the lifting support platform 4 descends to a position lower than the height of the platform 31, the cigarette packs on the lifting support platform 4 are supported by the platform 31 and will not continue to descend. At this time, the weight of the cigarette packs acts on the weighing sensor through the platform 31. After the weighing sensor feeds back the weight data, the controller can determine whether the weight of the cigarettes meets the requirements. If it does, the stacked cigarette packs are pushed into the carton, completing the packing. The weighing mechanism can prevent the problem of missing items and improve product quality.

[0031] Preferably, such as Figure 4 As shown, the front end of the second conveyor 3 in the direction of movement is provided with a blocking mechanism 32. The blocking mechanism 32 is controlled to rise and fall by a blocking cylinder. When the cigarette stick needs to fall, the blocking mechanism 32 can be raised to block the subsequent cigarette sticks, ensuring that the number of falling cigarette sticks is the set number. After the cigarette sticks have fallen, the blocking mechanism 32 is lowered so that the subsequent cigarette sticks can be moved to the second conveyor 3 for arrangement.

[0032] Of course, there may be other implementations of this utility model. Based on this implementation, other implementations obtained by those skilled in the art without any creative effort are all within the scope of protection of this utility model.

Claims

1. A cigarette packing and stacking mechanism for a cigarette packing machine, characterized in that, include: The frame (1), first conveyor (2), second conveyor (3), lifting support platform (4), and stop bar (5) are all installed on the frame (1), and one end of the first conveyor (2) is connected to one end of the second conveyor (3). The lifting support platform (4) is located below the second conveyor (3). The two ends of the stop bar (5) are vertically installed between the second conveyors (3). The second conveyor (3) is provided with a transverse movement mechanism (6) on both sides. The transverse movement mechanism (6) can drive the second conveyor (3) to move to both sides.

2. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 1, characterized in that, The second conveyor (3) includes a first mounting plate (7), a conveyor belt (8), a driven wheel (9), and a driving wheel (10). There are two first mounting plates (7), which are installed on the lower part of the transverse mechanism (6). The driven wheel (9) is mounted on the first mounting plate (7) through a rotating shaft. A first drive motor (11) is provided on the frame (1). Drive shafts (12) are provided on both sides of the first drive motor (11). The driving wheel (10) is mounted on the drive shaft (12). The conveyor belt (8) is wound around the driven wheel (9) and the driving wheel (10). The upper end face of the conveyor belt (8) is flush with the first conveyor (2).

3. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 2, characterized in that, The first mounting plate (7) is provided with a clamping plate (13), which is located below the conveyor belt (8) and is parallel to the direction of movement of the conveyor belt (8).

4. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 3, characterized in that, The drive shaft (12) is provided with a keyway (14), and the drive wheel (10) is slidably mounted on the drive shaft (12) via a connecting key. The drive wheel (10) is provided with a circumferential groove, and the first mounting plate (7) is provided with a roller (15), which extends radially into the groove of the drive wheel (10).

5. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 4, characterized in that, The transverse mechanism (6) includes a second mounting plate (16), a first guide rod (17), a first connecting block (18), a second connecting block (19), and a telescopic rod (21). The upper part of the second mounting plate (16) is connected to the frame (1). The first guide rod (17) is vertically installed on the outside of the second mounting plate (16). The first mounting plate (7) is slidably connected to the first guide rod (17). The first connecting block (18) is fixedly installed on the outside of the second mounting plate (16). A third connecting block (20) is provided on the outside of the first mounting plate (7), and a sliding groove is provided on the third connecting block (20). The middle part of the second connecting block (19) is rotatably installed on the first connecting block (18). The lower part of the second connecting block (19) is slidably connected to the sliding groove. One end of the telescopic rod (21) is connected to the second mounting plate (16), and the other end of the telescopic rod (21) is connected to one side of the second connecting block (19).

6. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 5, characterized in that, The second mounting plate (16) is provided with a plurality of second connecting blocks (19), and the first mounting plate (7) is provided with a corresponding number of third connecting blocks (20). The plurality of second connecting blocks (19) are connected to each other by connecting rods (22).

7. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 6, characterized in that, The frame (1) is provided with a second guide rod (23), and the second mounting plate (16) is slidably connected to the second guide rod (23) through a sleeve (24), and the sleeve (24) is provided with a locking bolt (25).

8. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 1, characterized in that, The frame (1) is provided with adjustment plates (26) at both the top and bottom. The adjustment plates (26) have elongated holes. The stop bar (5) is connected to the adjustment plates (26) by bolts.

9. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 1, characterized in that, The lifting support platform (4) is provided with a lifting mechanism (27) on its side. The lifting mechanism (27) is provided with a lead screw, a second drive motor (28), and a lifting block (29). The lead screw is installed in the lifting mechanism (27) through a bearing. The second drive motor (28) is connected to the lead screw through a synchronous belt. The lifting block (29) is slidably connected to the lifting mechanism (27) and is connected to the lead screw through a thread. The side of the lifting support platform (4) is connected to the lifting block (29). The lifting support platform (4) is provided with two parallel stainless steel cover plates (30). The stop bar (5) is located between the two stainless steel cover plates (30).

10. The cigarette packing and stacking mechanism of a cigarette packing machine according to claim 9, characterized in that, The frame (1) is equipped with a weighing mechanism, which includes a platform (31) and a weighing sensor. The lower part of the platform (31) is connected to the frame (1) through the weighing sensor. The platform (31) is located between two stainless steel cover plates (30), and the stop bar (5) is located on one side of the platform (31).

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