Air duct through assembly and air duct feeding device
By designing the air pipe passing component and lifting drive mechanism, the problem of material jamming caused by air pipe deformation was solved, realizing the one-by-one passage of air pipes and the regular feeding of the detection equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA NAT TOBACCO QUALITY SUPERVISION & TEST CENT
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-24
AI Technical Summary
Existing equipment has compatibility issues when testing empty flue pipes. The hollow structure of the empty flue pipes is prone to deformation, which can cause material to get stuck, making it difficult to pass each pipe through one by one.
An empty cigarette tube passage assembly was designed, including a filter passage area and a through-hole structure of a gradually widening empty cylinder passage area, combined with a lifting drive mechanism to ensure that the empty cigarette tubes pass through one by one.
This solved the problem of material jamming caused by deformation of the flue pipe, and enabled the flue pipes to pass through one by one and the detection equipment to feed materials in a regular manner.
Smart Images
Figure CN224539471U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco detection technology, specifically to an empty cigarette tube passing component and an empty cigarette tube feeding device. Background Technology
[0002] Empty cigarette tubes are structures with only the tobacco paper and filter remaining after the tobacco has been removed. As semi-finished tobacco products, they are usually used for experiments. However, since tobacco products are monopolized, some merchants take advantage of loopholes in the regulations to sell empty cigarette tubes as commodities on the market, and then individuals fill them to form cigarettes for use.
[0003] Currently, according to regulations, if the parameters of the prepared empty cigarette tube meet the relevant regulations for tobacco products, it can be identified as a tobacco product. These parameters include the length of the empty cigarette tube, the hardness of the filter tip, the paper parameters, the draw resistance, the ventilation rate, etc. These regulations provide corresponding technical support for law enforcement agencies.
[0004] However, there are many types of empty cigarette tubes sold on the market, and special equipment is needed to improve efficiency when conducting tests.
[0005] Currently, the applicable equipment is mainly used for testing finished cigarettes, and there are compatibility issues during the testing process.
[0006] For example, the empty cigarette tube is hollow in the tobacco section and is very easy to deform. When the automatic feeding device of ordinary cigarettes supplies cigarettes in a quantitative manner (supplying cigarettes one by one for inspection), it limits the number of cigarettes that can pass through by means of a channel that is similar to the outline of the cigarette to avoid multiple cigarettes passing through at once. Once the hollow structure of the empty cigarette tube is deformed, it will cause the material to jam.
[0007] In order to solve the above problems, people have been seeking an ideal technological solution. Utility Model Content
[0008] The purpose of this utility model is to address the shortcomings of the existing technology by providing an air pipe passing component and an air pipe feeding device that can enable air pipes to pass through one by one without easily getting stuck.
[0009] To achieve the above objectives, the technical solution adopted by this utility model is: an air pipe through component, comprising a main body and a channel portion;
[0010] The channel portion is a through hole formed on the main body, and the length of the through hole is greater than the length of the empty smoke tube;
[0011] The through hole is divided into two parts along its length. One part is the filter tip passage area, which has a constant width. The other part is the empty cylinder passage area, which gradually widens from the point where it connects with the filter tip passage area to the other end.
[0012] Based on the above, the bottom edge of the through hole is set as a sloping side that slopes downward from the inlet side to the outlet side in the thickness direction, and the width of the sloping side is greater than or equal to the diameter of the empty flue.
[0013] Based on the above, the lengths of the filter tip passage area and the empty cylinder passage area are equal, or the length of the filter tip passage area is less than the length of the empty cylinder passage area.
[0014] Based on the above, the bottom edge of the through hole is a straight line, and the upper edge of the empty cylinder passage area is a diagonal line or a curve.
[0015] Based on the above, the main body is a single, independent plate.
[0016] An empty cigarette tube feeding device includes a frame and a hopper, a cigarette reversing channel, a lifting drive mechanism, and an empty cigarette tube passing assembly respectively mounted on the frame;
[0017] The empty cigarette tube is vertically movable on the outlet side of the hopper via the assembly, the lifting drive mechanism is used to drive the vertical movement of the empty cylinder via assembly, and the cigarette reversing channel is connected to the downstream of the empty cigarette tube via assembly;
[0018] The lifting drive mechanism drives the air pipe to descend through the component until it aligns with the outlet of the hopper through the through hole, for the purpose of introducing the air pipe;
[0019] The lifting drive mechanism drives the empty cigarette tube to move upward through the component until it aligns with the inlet of the through hole and the cigarette reversing channel, for the purpose of exporting the empty cigarette tube.
[0020] Based on the above, the frame is provided with a vertical sliding groove corresponding to the empty smoke pipe through the component, and the empty smoke pipe slides in cooperation with the sliding groove through both ends of the component.
[0021] Based on the above, the lifting drive mechanism includes a motor, a turntable, and a follower roller. The motor is mounted on the frame, the turntable is mounted on the output shaft of the motor, and the follower roller is mounted on the eccentric position of the turntable via a rotating shaft. The wheel surface of the follower roller is always in contact with the bottom end of the air pipe through the assembly.
[0022] Based on the above, the cigarette reversing channel includes a curved channel that gradually reverses direction from horizontal to vertical.
[0023] Based on the above, the inlet side of the cigarette reversing channel is provided with an inclined surface that matches the bottom edge of the empty cigarette tube through component.
[0024] This utility model has substantial features and progress compared to the prior art. Specifically, this utility model has the following advantages:
[0025] During the transfer and transportation of the empty cigarette tube, the empty section is easily deformed due to factors such as compression and human intervention, causing it to become non-circular and wider than its original diameter in one direction, thus getting stuck during feeding. To address this problem, this utility model designs the channel section as a through hole comprising a filter tip passage area and an empty cylinder passage area. The filter tip passage area is for the filter tip to pass through, and since the filter tip contains filling filaments that are not easily deformed, its size does not need to be increased. The empty cylinder passage area is designed as a funnel-shaped structure with gradually increasing width, so that even if the empty cylinder section is deformed, it can still pass through the funnel shape, thus solving the jamming problem.
[0026] Meanwhile, due to the size limitation of the filter tip passage area and the gradually widening design of the empty cylinder passage area, most of the through hole area can still restrict the empty smoke pipes from passing through one by one, preventing disordered feeding.
[0027] Furthermore, the design enhances the drive mechanism, lifting the empty cigarette tube from the hopper to the cigarette reversing channel to achieve the step-by-step transfer of cigarettes, further ensuring the regularity of cigarettes being fed into the downstream testing equipment one by one. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the hollow smoke pipe through the component in Embodiment 1 of this utility model.
[0029] Figure 2 This is a schematic diagram of the hollow smoke tube in the deformed state in Embodiment 1 of this utility model.
[0030] Figure 3 This is an overall schematic diagram of the hollow smoke tube feeding device in Embodiment 2 of this utility model.
[0031] Figure 4 This is a cross-sectional view of the hollow smoke tube feeding device in Embodiment 2 of this utility model.
[0032] Figure 5 This is a schematic diagram of the cigarette reversing channel in Embodiment 2 of this utility model.
[0033] Figure 6 This is a schematic diagram of the lifting drive mechanism in Embodiment 2 of this utility model.
[0034] In the diagram: 1. Empty cigarette pipe through assembly; 2. Frame; 3. Hopper; 4. Cigarette reversing channel; 5. Lifting drive mechanism; 11. Main body; 12. Channel section; 121. Filter passage area; 122. Empty cylinder passage area; 41. Inclined surface; 51. Motor; 52. Turntable; 53. Follow-up roller; 6. Empty cigarette pipe. Detailed Implementation
[0035] The technical solution of this utility model will be further described in detail below through specific embodiments.
[0036] Example 1
[0037] like Figure 1 and Figure 2 As shown, an air pipe through assembly includes a main body 11 and a channel 12.
[0038] The channel section 12 is a through hole formed on the main body. The length of the through hole is greater than the length of the empty cigarette tube. The length of the empty cigarette tube is the length of the cigarette itself. The empty cigarette tube is a structure that leaves only the cigarette paper and filter section after the tobacco is removed.
[0039] The through hole is divided into two parts along its length. One part is the filter passage area 121. The width of the filter passage area 121 is a constant width, and its size is slightly larger than the diameter of the cigarette filter segment. Only the filter segment of a single cigarette is allowed to pass through at a time.
[0040] The other part is the empty cylinder passage area 122. The width of the empty cylinder passage area 122 gradually increases from the point where it connects with the filter nozzle passage area 121 to the other end, forming a trumpet shape in the front projection. The widening curve can be a straight line, i.e., the hypotenuse, or it can be a curve, i.e., a trumpet shape.
[0041] This shape is designed based on the deformed shape of the empty pipe. When the empty pipe deforms, the part connected to the filter section is not easily deformed due to structural support, while the part far from the filter section is easily deformed due to loss of support. Therefore, the filter section 61 of the empty pipe 6 is still a cylinder, and the empty section 62 will take the shape of a trumpet with gradually increasing width after deformation.
[0042] In terms of dimensions, the width of the empty tube passage zone 122 is designed relative to the deformed dimensions of the empty tube section of the flue. The width of the empty tube passage zone 122 at each point needs to be greater than the maximum deformed width of the corresponding empty tube section.
[0043] Under this constraint structure, the deformation of the empty smoke pipe can be disregarded, and the empty smoke pipe can still pass smoothly through the channel section 12, while also constraining the empty smoke pipe to pass through one by one.
[0044] In a preferred embodiment, the bottom edge of the through hole is set as a sloping side that slopes downward from the inlet side to the outlet side in the thickness direction. The width of the sloping side is greater than or equal to the diameter of the empty smoke pipe. Its main purpose is to allow the empty smoke pipe to continue moving smoothly downstream from the channel section 12 and provide potential energy.
[0045] In terms of length design, in a preferred embodiment, the lengths of the filter tip passage area and the empty cylinder passage area are equal, or the length of the filter tip passage area is less than the length of the empty cylinder passage area.
[0046] In terms of the specific shape design of the empty cylinder passage area 122, this embodiment is designed as follows: the bottom edge of the through hole is a straight line, and the upper edge of the empty cylinder passage area is a diagonal line or a curve.
[0047] In other embodiments, the empty cylinder passage area can be a regular, symmetrical funnel shape.
[0048] To facilitate the extraction of this component, in this embodiment, the main body is an independent plate. In other embodiments, the main body may also be a partial structure integrated into other structures.
[0049] Example 2
[0050] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, an empty cigarette tube feeding device includes a frame 2 and a hopper 3, a cigarette reversing channel 4, a lifting drive mechanism 5, and an empty cigarette tube passing assembly 1, all of which are respectively mounted on the frame.
[0051] The empty smoke pipe is vertically movable on the outlet side of the hopper via component 1. In this embodiment, the hopper 3 is a common hopper with a sloping bottom edge and the outlet at the lowest point of the sloping edge. The width of the hopper can be adjusted to match the size of the empty smoke pipe, so that when the empty smoke pipe exits the hopper, the positions of the filter section and the empty cylinder section are basically the same.
[0052] In this embodiment, a vertical slide groove 21 is provided at the corresponding position of the frame 2, and the empty smoke pipe slides with the slide groove through both ends of the main body plate of the component 1.
[0053] The lifting drive mechanism 5 is used to drive the vertical movement of the empty tube through component 1, and the cigarette reversing channel 4 is connected to the downstream of the empty cigarette tube through component 1;
[0054] The lifting drive mechanism 5 drives the empty smoke pipe to descend through the component 1 until it aligns with the outlet of the through hole and the hopper 3, for the purpose of introducing the empty smoke pipe. This position can be either the lowest position or the middle position.
[0055] The lifting drive mechanism 5 drives the empty cigarette tube to move upward through the component 1 until it aligns with the inlet of the through hole and the cigarette reversing channel 4, for the purpose of exporting the empty cigarette tube. This position can be either the highest position or the middle position, but the highest position is the most effective.
[0056] In this embodiment, the lifting drive mechanism includes a motor 51, a turntable 52, and a follower roller 53. The motor 51 is mounted on the frame 2, the turntable 52 is mounted on the output shaft of the motor 51, and the follower roller 53 is mounted on the eccentric position of the turntable 52 via a rotating shaft. The wheel surface of the follower roller 53 is always in contact with the bottom end of the air pipe through the assembly 1. The eccentric movement of the follower roller 53 drives the air pipe through the assembly 1 to move up and down.
[0057] In other embodiments, the lifting drive mechanism can also be a common linear motion mechanism such as a lifting cylinder, a lifting electric cylinder, a lifting linear motor, or an electric lead screw assembly.
[0058] In this embodiment, the cigarette reversing channel 4 includes a curved channel that gradually changes direction from horizontal to vertical. After the empty cigarette tube enters horizontally, under the guidance of the curved channel, one end gradually changes from horizontal to vertical, while the other end rises accordingly, and finally it is guided vertically downstream.
[0059] In this embodiment, the filter section of the empty tube is positioned at the front, and when it becomes vertical, the filter section is at the bottom and the empty tube section is at the top.
[0060] To facilitate the entry of the empty cigarette tube into the cigarette reversing channel 4, the inlet side of the cigarette reversing channel 4 is provided with an inclined surface 41 that matches the bottom edge of the empty cigarette tube passing component.
[0061] Work process:
[0062] The empty smoke pipes to be tested, with consistent ends, are placed into the hopper 3 in batches. Under their own weight, the empty smoke pipes 6 pass through the outlet of the hopper 3 one by one into the through hole of the empty smoke pipe passing component 1.
[0063] The lifting drive mechanism lifts the empty cigarette tube 6 as a whole through component 1. The empty cigarette tube 6 is then lifted to the entrance of the cigarette reversing channel 4. Under the action of potential energy, the empty cigarette tube 6 enters the cigarette reversing channel 4 and becomes vertical. Then it enters the downstream detection module for the detection of the corresponding parameters.
[0064] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.
Claims
1. A flue gas pipe assembly, characterized in that: Includes the main body and the passageway; The channel portion is a through hole formed on the main body portion, and the length of the through hole is greater than the length of the empty smoke tube; The through hole is divided into two parts along its length. One part is the filter tip passage area, which has a constant width. The other part is the empty cylinder passage area, which gradually widens from the point where it connects with the filter tip passage area to the other end.
2. The air pipe through-assembly according to claim 1, characterized in that: The bottom edge of the through hole is set as a sloping side that slopes downward from the inlet side to the outlet side in the thickness direction, and the width of the sloping side is greater than or equal to the diameter of the empty flue.
3. The air pipe through-assembly according to claim 2, characterized in that: The lengths of the filter tip passage area and the empty cylinder passage area are equal, or the length of the filter tip passage area is less than the length of the empty cylinder passage area.
4. The air pipe through-assembly according to claim 2 or 3, characterized in that: The bottom edge of the through hole is a straight line, and the upper edge of the empty cylinder passage area is a diagonal line or a curve.
5. The air pipe through-assembly according to claim 2 or 3, characterized in that: The main body is a single, independent plate.
6. A device for feeding air into a flue, characterized in that: It includes a frame and a hopper, a cigarette reversing channel, a lifting drive mechanism, and an empty cigarette pipe passage assembly as described in any one of claims 2-5, all of which are respectively mounted on the frame. The empty cigarette tube is vertically movable on the outlet side of the hopper via the assembly, the lifting drive mechanism is used to drive the vertical movement of the empty cylinder via assembly, and the cigarette reversing channel is connected to the downstream of the empty cigarette tube via assembly; The lifting drive mechanism drives the air pipe to descend through the component until it aligns with the outlet of the hopper through the through hole, for the purpose of introducing the air pipe; The lifting drive mechanism drives the empty cigarette tube to move upward through the component until it aligns with the inlet of the through hole and the cigarette reversing channel, for the purpose of exporting the empty cigarette tube.
7. The empty smoke pipe feeding device according to claim 6, characterized in that: The frame has a vertical sliding groove corresponding to the empty smoke pipe, and the empty smoke pipe slides in cooperation with the sliding groove through both ends of the component.
8. The empty smoke tube feeding device according to claim 6, characterized in that: The lifting drive mechanism includes a motor, a turntable, and a follower roller. The motor is mounted on the frame, the turntable is mounted on the output shaft of the motor, and the follower roller is mounted on the eccentric position of the turntable via a rotating shaft. The wheel surface of the follower roller is always in contact with the bottom end of the air pipe through the assembly.
9. The empty smoke pipe feeding device according to claim 6, characterized in that: The cigarette reversing channel includes a curved channel that gradually reverses direction from horizontal to vertical.
10. The empty smoke pipe feeding device according to claim 9, characterized in that: The inlet side of the cigarette reversing channel is provided with an inclined surface that matches the bottom edge of the empty cigarette tube through component.