A fastening device for a tobacco tongue assembly

Abstract

The application discloses a cigarette tongue assembly fastening device, and relates to the technical field of cigarette production. The cigarette tongue assembly fastening device comprises a support, a multi-link mechanism and a fastening mechanism, the support is arranged on a cigarette gun base, the multi-link mechanism is movably arranged on the support, the fastening mechanism is connected with the multi-link mechanism, the cigarette tongue assembly is installed on the cigarette gun base, and the fastening mechanism is in abutment with the cigarette tongue assembly when the multi-link mechanism forms a dead point. The cigarette tongue assembly fastening device utilizes the dead point of the multi-link mechanism to fix the cigarette tongue assembly, avoids loosening of the fastening device, and further avoids cigarette process quality problems caused by loosening of the fastening device.

Description

Technical Field

[0001] This application relates to the field of cigarette manufacturing technology, and in particular to a fastening device for a cigarette tongue assembly. Background Technology

[0002] In the cigarette production process, the suction roller in the feeding and forming system of the cigarette rolling unit drives the suction ribbon to move. When the tobacco adsorbed on the suction ribbon reaches the front end of the cigarette gun, the suction disappears. Under the action of the scraper, the tobacco falls onto the moving cigarette paper. The cloth belt carries the cigarette paper and tobacco. The cigarette tongue works in conjunction with the cigarette gun, the large pressure plate, the small pressure plate, and other components. The cigarette tongue compresses the tobacco bundle for the first time in the cigarette gun, making it round. After the tobacco bundle enters the small pressure plate, it expands to a certain extent and then undergoes a second compression. The cigarette paper forms a "b" shape, wrapping the tobacco bundle on one side and standing upright with glue applied on the other side. Finally, the tobacco bundle enters the large pressure plate for a third compression. When it passes through the soldering iron, the glue at the seam is dried, and the cigarette strip is formed.

[0003] In related technologies, the tongue assembly is typically bolted to the cigarette holder base, achieving a rigid connection between the tongue assembly and the base. However, this method is prone to loosening, and installing the tongue assembly requires first raising the suction chamber, then lowering it for tightening, which is cumbersome. Furthermore, lowering the suction chamber can easily crush the tongue edge. Changing the position of the tongue assembly relative to the cigarette holder base can lead to quality issues such as cigarette pressure deviation, excessively high cigarette circumference markings, and cigarette bursting, increasing the likelihood of cigarette failure. Utility Model Content

[0004] The purpose of this application is to provide a fastening device for a cigarette tongue assembly that simplifies the installation process, prevents the suction chamber from being lifted during the installation of the cigarette tongue assembly, and prevents the suction chamber from crushing the edge of the cigarette tongue.

[0005] To achieve the above objectives, this application provides a fastening device for a cigarette tongue assembly, comprising: a bracket, a multi-link mechanism, and a fastening mechanism;

[0006] The bracket is disposed on the base of the smoke gun;

[0007] The multi-link mechanism is movably mounted on the bracket;

[0008] The fastening mechanism is connected to the multi-link mechanism, and the tongue assembly is mounted on the base of the cigarette gun. When the multi-link mechanism reaches a dead point, the fastening mechanism abuts against the tongue assembly.

[0009] In some embodiments, the multi-link mechanism includes a driving link, a driven link, and a connecting link. The bracket is provided with two spaced mounting holes. The driving link is rotatably connected to one of the mounting holes, the driven link is rotatably connected to the other mounting hole, one end of the connecting link is rotatably connected to the driving link, and the other end of the connecting link is rotatably connected to the driven link.

[0010] In some embodiments, the fastening mechanism includes a connecting shaft and a fastening seat, the connecting shaft being connected to the driven rod, and the fastening seat being disposed at the bottom end of the connecting shaft.

[0011] In some embodiments, the connecting shaft is a threaded shaft, the driven rod is threadedly engaged with the connecting shaft, and the connecting shaft is capable of moving relative to the driven rod along its axial direction.

[0012] In some embodiments, a first limiting mechanism is sleeved on the connecting shaft. The first limiting mechanism includes a limiting pad and a limiting nut. The limiting pad is located between the limiting nut and the connecting shaft, and the limiting nut enables the limiting pad to abut against the connecting shaft.

[0013] In some embodiments, the fastening base has a stop at its bottom, the stop being connected to the fastening base via an elastic element, and the stop being used to abut against the tongue assembly.

[0014] In some embodiments, the bottom of the stop block is provided with a limiting block, which can extend into the U-shaped groove of the tongue assembly, and the limiting block is used to limit the tongue assembly.

[0015] In some embodiments, the fastening seat includes a carriage and a slider, the carriage being connected to the connecting shaft, the slider being connected to the stop, the carriage having a groove, the slider being slidably engaged in the groove, and being able to slide relative to the carriage.

[0016] In some embodiments, the slide is provided with a second limiting mechanism, which is a set screw. The second limiting mechanism is threadedly engaged with the slide and can abut against the slider.

[0017] In some embodiments, the bottom of the bracket is provided with an extension plate, the extension plate having a plurality of mating holes, and the extension plate is connected to the base of the cigarette gun through the plurality of mating holes.

[0018] Compared to the aforementioned background technology, the fastening device for the tongue assembly provided in this application embodiment is used to fasten the tongue assembly to the base of the cigarette gun. The fastening device for the tongue assembly includes a bracket, a multi-link mechanism, and a fastening mechanism. The bracket is disposed on the base of the cigarette gun, the multi-link mechanism is movably disposed on the bracket, and the fastening mechanism is connected to the multi-link mechanism. The tongue assembly is mounted on the base of the cigarette gun. When the multi-link mechanism forms a dead point, the fastening mechanism abuts against the tongue assembly. When installing the cigarette tongue assembly, the cigarette tongue assembly is placed on the cigarette holder base. Then, the fastening device moves downward through the movement of the multi-link mechanism. When the fastening device moves downward to abut against the cigarette tongue assembly and applies downward pressure, the multi-link mechanism reaches a dead point. The force exerted on the driven member by the driving rod in the multi-link mechanism through the connecting rod passes through its center of rotation, thus making the effective component of the force driving the driven member zero. At this point, no matter how large the driving force or driving torque is applied to the driving member of the mechanism, the driven rod cannot be driven. Therefore, the position of the fastening mechanism can be fixed, allowing the fastening mechanism to secure the cigarette tongue assembly to the cigarette holder base. The fastening device for the cigarette tongue assembly in this application uses the dead point of the multi-link mechanism to fix the cigarette tongue assembly, avoiding loosening of the fastening device and thus avoiding cigarette manufacturing quality problems caused by loose fastening. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the front base and the smoke tongue assembly structure in a related technology where bolts are used to fasten the smoke tongue assembly.

[0021] Figure 2 This is a schematic diagram of the fastening device structure for the cigarette tongue assembly according to an embodiment of this application;

[0022] Figure 3 This is an exploded schematic diagram of the fastening device for the smoke tongue assembly according to an embodiment of this application;

[0023] Figure 4 This is a front view of the fastening device for the cigarette tongue assembly according to an embodiment of this application;

[0024] Figure 5 This is a side view of the fastening device for the cigarette tongue assembly according to an embodiment of this application;

[0025] Figure 6 This is a cross-sectional view of the fastening device for the cigarette tongue assembly according to an embodiment of this application;

[0026] Figure 7 This is a schematic diagram showing the state of the fastening device for the cigarette tongue assembly in an embodiment of this application when fastening the cigarette tongue assembly.

[0027] Figure 8 This is a schematic diagram showing the state of the tongue assembly fastening device in an embodiment of this application when the tongue assembly is not fastened.

[0028] in:

[0029] 100. Smoking gun base; 200. Smoking tongue assembly; 201. U-shaped groove;

[0030] 1. Bracket; 11. Extension plate; 12. First mounting hole; 13. Second mounting hole; 2. Multi-link mechanism; 21. Driving rod; 22. Driven rod; 23. Connecting rod; 3. Fastening mechanism; 31. Connecting shaft; 32. Fastening seat; 321. Slide; 322. Slider; 4. First limiting mechanism; 41. Limiting pad; 42. Limiting nut; 5. Stop; 6. Elastic element; 7. Limiting block; 8. Second limiting mechanism. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0032] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] It should be noted that the directional terms such as "upper end," "lower end," "left side," and "right side" mentioned below are defined based on the accompanying drawings in the instruction manual.

[0034] like Figures 2 to 5 As shown in the embodiment of this application, the fastening device for the tongue assembly is used to fasten the tongue assembly 200 to the cigarette gun base 100. The fastening device for the tongue assembly includes a bracket 1, a multi-link mechanism 2, and a fastening mechanism 3. The bracket 1 is disposed on the cigarette gun base 100, the multi-link mechanism 2 is movably disposed on the bracket 1, and the fastening mechanism 3 is connected to the multi-link mechanism 2. The tongue assembly 200 is mounted on the cigarette gun base 100. When the multi-link mechanism 2 forms a dead point, the fastening mechanism 3 abuts against the tongue assembly 200.

[0035] The multi-link mechanism 2 is a planar linkage mechanism, formed by multiple revolute joints hinged together. In the embodiments of this application, the multi-link mechanism 2 is a crank-rocker mechanism. The crank-rocker mechanism has a frame, a crank, a rocker, and a connecting rod. The frame is a fixed rod that serves as the support and reference frame for the entire mechanism. The rocker is mostly the driving member, which is a rod that can rotate a full circle around its revolute joint. The crank is mostly the driven member, which is a rod that can only swing back and forth within a certain angle. The connecting rod is the rod that connects the driving member and the driven member.

[0036] The dead point of the multi-link mechanism 2 refers to a specific position in which the connecting rod and the crank in the crank-rocker mechanism are collinear, that is, the extension line of the connecting rod coincides with the rotation center of the crank. At this time, the effective component force of the crank is zero, which causes the crank to be unable to move.

[0037] When installing the tongue assembly 200, the tongue assembly 200 is placed on the cigarette gun base 100. Then, the fastening device is moved downward by the movement of the multi-link mechanism 2. When the fastening device moves downward to abut against the tongue assembly 200 and applies downward pressure to the tongue assembly 200, the multi-link mechanism 2 forms a dead point, thereby fixing the position of the fastening mechanism 3, so that the fastening mechanism 3 can fasten the tongue assembly 200 to the cigarette gun base 100.

[0038] The fastening device for the tongue assembly of this application uses the dead point of the multi-link mechanism 2 to fix the tongue assembly 200, thereby preventing the fastening device from loosening.

[0039] Preferred, such as Figure 3 As shown, the multi-link mechanism 2 includes a driving link 21, a driven link 22, and a connecting link 23. In this application, the bracket 1 serves as the frame of the crank-rocker mechanism, the driving link 21 serves as the rocker arm, the driven link 22 serves as the crank, and the connecting link 23 is used to connect the driving link 21 and the driven link 22. The bracket 1 has two spaced mounting holes, namely a first mounting hole 12 and a second mounting hole 13. The first mounting hole 12 is close to the top of the bracket 1, and the second mounting hole 13 is located to the side and below the first mounting hole 12. The driving link 21 is rotatably connected to the first mounting hole 12 and can rotate around the first mounting hole 12. The driven link 22 is rotatably connected to the second mounting hole 13 and can swing around the second mounting hole 13. Both the driving link 21 and the driven link 22 are provided with connecting holes, and the two ends of the connecting link 23 are rotatably connected to the connecting holes on the driving link 21 and the driven link 22, respectively. The bracket 1, the driving rod 21, the driven rod 22 and the connecting rod 23 form a crank rocker mechanism. The driving rod 21 is driven to rotate around the second mounting hole 13 by external force, which can drive the driven rod 22 to swing around the second mounting hole 13. The fastening mechanism 3 is provided on the driven rod, and the fastening mechanism 3 swings synchronously with the driven rod 22.

[0040] Based on the above embodiments, such as Figures 3 to 5As shown, the fastening mechanism 3 includes a connecting shaft 31 and a fastening seat 32. The connecting shaft 31 is mounted on the driven rod 22, and the fastening seat 32 is located at the bottom end of the connecting shaft 31.

[0041] When fixing the tongue assembly 200, the driven rod 22 applies downward pressure to the connecting shaft 31, and the connecting shaft 31 transmits the pressure to the fastening seat 32. The fastening seat 32 abuts against the tongue assembly 200 and applies downward pressure to the tongue assembly 200, thereby fixing the tongue assembly 200 to the tobacco gun base 100.

[0042] Based on the above embodiments, such as Figures 3 to 5 As shown, the connecting shaft 31 is a threaded shaft, and the driven rod 22 is threadedly engaged with the connecting shaft 31, allowing the connecting shaft 31 to move relative to the driven rod 22 along its axial direction.

[0043] By using the connecting shaft 31, the connecting shaft 31 can be moved spirally upward or spirally downward relative to the driven rod 22 along its axial direction, thereby changing the height of the fastening seat 32, which can adapt to different shapes of cigarette tongue assembly 200 and improve versatility.

[0044] Based on the above embodiments, such as Figures 3 to 6 As shown, a first limiting mechanism 4 is provided on the connecting shaft 31. The first limiting mechanism 4 includes a limiting pad 41 and a limiting nut 42. There are two limiting pads 41, both of which are sleeved on the connecting shaft 31 and located on both sides of the driven rod 22. There are also two limiting nuts 42, both of which are sleeved on the connecting shaft 31 and located on the outside of the two limiting pads 41. Both limiting nuts 42 are threadedly engaged with the connecting shaft 31. By tightening the two limiting nuts 42, the two limiting pads 41 can be tightly fitted onto the driven rod 22, thereby fixing the connecting shaft 31 and preventing the connecting shaft 31 from loosening.

[0045] In some embodiments, such as Figures 3 to 6 As shown, the bottom of the fastening seat 32 is provided with a stop block 5. The stop block 5 is connected to the fastening seat 32 through an elastic member 6. The stop block 5 is used to stop the tongue assembly 200.

[0046] It is understandable that the stop block 5 is located at the bottom of the fastening seat 32, and the top of the stop block 5 is elastically connected to the fastening seat 32 through the elastic element 6. The elastic element 6 can be a compression spring, and there are two elastic elements 6, which are distributed at intervals. The stop block 5 can move relative to the fastening seat 32 through the elastic elements 6, thereby moving closer to or away from the fastening seat 32. The two elastic elements 6 can limit the movement of the stop block 5 and prevent the stop block 5 from deviating.

[0047] Under normal conditions, the fastening seat 32 transmits downward pressure to the stop block 5 through the elastic element 6. The stop block 5 abuts against the tongue assembly 200 and applies downward pressure to the tongue assembly 200, thereby fixing the tongue assembly 200 to the cigarette holder base 100. When a foreign object passes through the cigarette holder base 100, the foreign object will push up the tongue assembly 200, causing the tongue assembly 200 to rise. At this time, the elastic element 6 contracts. The ability of the tongue assembly 200 to rise when a foreign object passes through protects the tongue assembly 200, preventing damage from hard foreign objects and extending its service life.

[0048] Based on the above embodiments, such as Figure 1 , Figures 3 to 6 As shown, the bottom of the stop block 5 is provided with a limiting block 7, which can extend into the U-shaped groove 201 of the tongue assembly 200. The limiting block 7 is used to limit the tongue assembly 200.

[0049] It is understandable that the width of the limiting block 7 is equal to the width of the U-shaped groove 201 of the tongue assembly 200. When the limiting block 7 extends into the U-shaped groove 201 of the tongue assembly 200, its sidewall is in close contact with the groove wall of the U-shaped groove 201, thereby further fixing the tongue assembly 200 and preventing the tongue assembly 200 from shaking.

[0050] Preferably, the limiting block 7 can be a U-shaped structure, and has the same structure as the U-shaped groove 201 of the tongue assembly 200. The limiting block 7 can restrict the movement of the tongue assembly 200 in the plane.

[0051] Based on the above embodiments, such as Figure 3 As shown, the fastening seat 32 includes a slide 321 and a slider 322. The slide 321 is connected to the connecting shaft 31, and the slider 322 is connected to the stop block 5. The slide 321 has a sliding groove, and the slider 322 is slidably fitted in the sliding groove and can slide relative to the slide 321.

[0052] Understandably, the slider 322 can move back and forth within the groove. By moving the slider 322 back and forth, the positions of the stop block 5 and the limit block 7 can be adjusted, so that the stop block 5 can be inserted into the U-shaped groove 201 of the cigarette tongue assembly 200 and fit into the U-shaped groove 201.

[0053] Based on the above embodiments, such as Figure 3 As shown, the slide 321 is provided with a second limiting mechanism 8, which is a set screw. The second limiting mechanism 8 is threadedly engaged with the slide 321 and can abut against the slider 322.

[0054] Understandably, the slide 321 is provided with multiple limiting holes, which are distributed at intervals on the slide 321. One end of each limiting hole is connected to the slide groove, and the other end of the limiting hole is connected to the outside. The limiting holes are threaded holes, and each limiting hole is threaded with a second limiting mechanism 8. The second limiting mechanism 8 can abut against the slider 322 and limit the slider 322 through friction, thereby fixing the slider 322 to prevent the slider 322 from moving in the slide groove when the cigarette tongue assembly 200 is tightened, which would cause the cigarette tongue assembly 200 to loosen.

[0055] In some embodiments, such as Figure 2 As shown, the bottom of the bracket 1 is provided with an extension plate 11, which has multiple mating holes. The base 100 of the smoke gun has fixing holes corresponding to the mating holes. The bracket 1 is placed on the base 100 of the smoke gun. By inserting bolts into the mating holes and the corresponding fixing holes, the bracket 1 can be fixed on the base 100 of the smoke gun.

[0056] Understandably, the extension plate 11 increases the number of fixing points, thereby increasing the stability of the bracket 1 and preventing the bracket 1 from detaching from the smoke gun base 100.

[0057] The working process of the fastening device for the cigarette tongue assembly provided in this application embodiment is as follows:

[0058] When the cigarette tongue assembly 200 is placed on the cigarette gun base 100, the fastening mechanism 3 is positioned above the cigarette tongue assembly 200 and is not in contact with it, as shown in the following figure. Figure 8 As shown, by manually rotating the driving rod 21 clockwise, the driving rod 21 drives the driven rod 22 to rotate clockwise via the connecting rod 23. The fastening mechanism 3 rotates synchronously with the driven rod 22 and gradually approaches the cigarette tongue assembly 200. When the crank-rocker mechanism composed of the bracket 1 and the multi-link mechanism 2 moves to the dead position, as... Figure 7 As shown, at this time, the stop block 5 abuts against the top of the tongue assembly 200, the elastic element 6 is compressed, the driven rod 22 applies downward pressure to the connecting shaft 31, and the connecting shaft 31 transmits the pressure to the stop block 5 through the fastening seat 32 and the elastic element 6. The stop block 5 applies downward pressure to the tongue assembly 200, and the friction between the tongue assembly 200, the smoke gun base 100 and the stop block 5 fixes the tongue assembly 200 on the smoke gun base 100. At this time, the limiting block 7 extends into the U-shaped groove 201 of the tongue assembly 200 to prevent the tongue assembly 200 from shaking.

[0059] In summary, the fastening device for the cigarette tongue assembly of this application uses the dead point of the multi-link mechanism 2 to fix the cigarette tongue assembly 200, which avoids the fastening device from loosening, and thus avoids cigarette manufacturing quality problems caused by loose fastening.

[0060] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0061] The fastening device for the cigarette tongue assembly provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the solution and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A fastening device for a cigarette tongue assembly, used to fasten the cigarette tongue assembly (200) to a cigarette holder base (100), characterized in that, The fastening device for the cigarette tongue assembly includes: A bracket (1) is provided on the base (100) of the smoking gun; A multi-link mechanism (2) is movably mounted on the support (1); Fastening mechanism (3) is connected to the multi-link mechanism (2). The tongue assembly (200) is mounted on the cigarette gun base (100). When the multi-link mechanism (2) forms a dead point, the fastening mechanism (3) abuts against the tongue assembly (200).

2. The fastening device for the cigarette tongue assembly according to claim 1, characterized in that, The multi-link mechanism (2) includes a driving rod (21), a driven rod (22), and a connecting rod (23). The bracket (1) is provided with two spaced mounting holes. The driving rod (21) is rotatably connected to one of the mounting holes, and the driven rod (22) is rotatably connected to the other mounting hole. One end of the connecting rod (23) is rotatably connected to the driving rod (21), and the other end of the connecting rod (23) is rotatably connected to the driven rod (22).

3. The fastening device for the cigarette tongue assembly according to claim 2, characterized in that, The fastening mechanism (3) includes a connecting shaft (31) and a fastening seat (32). The connecting shaft (31) is connected to the driven rod (22), and the fastening seat (32) is located at the bottom end of the connecting shaft (31).

4. The fastening device for the cigarette tongue assembly according to claim 3, characterized in that, The connecting shaft (31) is a threaded shaft, and the driven rod (22) is threadedly engaged with the connecting shaft (31). The connecting shaft (31) can move relative to the driven rod (22) along its axial direction.

5. The fastening device for the cigarette tongue assembly according to claim 4, characterized in that, A first limiting mechanism (4) is sleeved on the connecting shaft (31). The first limiting mechanism (4) includes a limiting pad (41) and a limiting nut (42). The limiting pad (41) is located between the limiting nut (42) and the connecting shaft (31). The limiting nut (42) enables the limiting pad (41) to abut against the connecting shaft (31).

6. The fastening device for the cigarette tongue assembly according to claim 3, characterized in that, The fastening seat (32) has a stop block (5) at the bottom. The stop block (5) is connected to the fastening seat (32) through an elastic element (6). The stop block (5) is used to stop the tongue assembly (200).

7. The fastening device for the cigarette tongue assembly according to claim 6, characterized in that, The bottom of the stop block (5) is provided with a limiting block (7), which can extend into the U-shaped groove (201) of the tongue assembly (200) and is used to limit the tongue assembly (200).

8. The fastening device for the cigarette tongue assembly according to claim 6, characterized in that, The fastening seat (32) includes a slide (321) and a slider (322). The slide (321) is connected to the connecting shaft (31), and the slider (322) is connected to the stop (5). The slide (321) has a groove, and the slider (322) slides within the groove and can slide relative to the slide (321).

9. The fastening device for the cigarette tongue assembly according to claim 8, characterized in that, The slide (321) is provided with a second limiting mechanism (8), which is a set screw. The second limiting mechanism (8) is threadedly engaged with the slide (321) and can abut against the slider (322).

10. The fastening device for the cigarette tongue assembly according to any one of claims 1-9, characterized in that, The bracket (1) has an extension plate (11) at its bottom. The extension plate (11) has multiple mating holes and is connected to the cigarette gun base (100) through the multiple mating holes.

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