A new type of suction guide rail for cigarette making machine

Abstract

The utility model discloses a novel tobacco absorbing guide rail for cigarette making machine relates to tobacco production technical field, and its technical scheme main points are: first component and second component, first component and second component are spaced and opposite setting between two; A plurality of connecting pieces, through first component and second component, be used for fixed connection of two and form tobacco channel between them, first component and second component at least one includes the bottom plate part to tobacco channel, be equipped with a plurality of negative pressure holes on bottom plate part, and the inside of first component and second component at least one forms hollow part with negative pressure hole intercommunication, effect is lower airflow speed can greatly reduce the impact, tumble and friction to tobacco in the conveying process, thereby effectively reduced the disintegration rate of tobacco, guaranteed the integrity of tobacco, provided high -quality raw material guarantee for winding out the cigarette of filling full.

Description

Technical Field

[0001] This utility model relates to the field of tobacco production technology, and more specifically, to a novel tobacco suction guide rail for cigarette rolling machines. Background Technology

[0002] The ZJ17 cigarette rolling machine is one of the mainstream equipment in the current cigarette industry. Its suction belt and suction guide rail assembly are key components for tobacco conveying and cigarette strip forming. The suction guide rail is usually installed on the air chamber body. Its function is to support and guide the operation of the suction belt and cooperate with the air chamber body to form a negative pressure air duct. The negative pressure adsorption effect is used to evenly and tightly adsorb the tobacco onto the surface of the suction belt, and finally convey it to the cigarette gun for rolling.

[0003] Currently, ZJ17 cigarette making machines in the industry generally use alloy material suction guide rail assemblies, which typically include a front plate, a rear plate, and components such as gaskets and spacers set between the two via stepped shafts. The gaskets are mainly used to support the suction wire and ensure its smooth operation. Due to the high wear resistance of the material itself, this type of alloy guide rail structure guarantees the service life of the equipment to a certain extent. However, in practical applications, it has been found that the existing wire-suction guide structure still has significant shortcomings, which restricts the further improvement of equipment efficiency. Specifically, in order to ensure structural strength and support stability, the thickness of the intermediate gasket is relatively large. Although this meets the mechanical performance requirements, it inevitably reduces the effective flow area of ​​the negative pressure air duct. More importantly, the limited flow area directly weakens the area and force of the negative pressure's adsorption of tobacco. Its drawbacks are mainly reflected in two aspects: First, insufficient adsorption force can easily cause the tobacco to scatter or be unevenly distributed during transportation, forming sparse points. These sparse points are very likely to manifest as quality defects such as "empty cigarettes" after rolling. Second, when the tobacco contains a small amount of clumps or the flow rate increases instantaneously, the adsorption force cannot effectively disperse and adsorb them in time, which can easily cause blockage in the narrow space between the suction belt and the guide rail. This not only requires machine shutdown for cleaning, affecting production efficiency, but also poses a continuous threat to the stability of product quality.

[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a novel cigarette-feeding guide rail for cigarette machines. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of cigarette-suction guide rail for cigarette machines.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel cigarette-feeding guide rail for a cigarette rolling machine, comprising: The first component and the second component are spaced apart and arranged opposite to each other; Multiple connectors extend through the first component and the second component to fix the two together and form a tobacco channel therebetween; At least one of the first component and the second component includes a bottom plate portion facing the tobacco channel, the bottom plate portion is provided with a plurality of negative pressure holes, and at least one of the first component and the second component has a hollow portion that communicates with the negative pressure holes. Specifically, by setting the hollow part to increase the flow cross-sectional area of ​​the tobacco channel, and by setting the multiple negative pressure holes to increase the negative pressure adsorption area, the two work together to reduce the tobacco flow rate and enhance the uniformity and compactness of tobacco adsorption.

[0007] Preferably, the first component is a front plate, the second component is a rear plate, the connecting member is a hollow stepped shaft, the front plate and the rear plate are connected by the hollow stepped shaft, and a gasket and a spacer are sequentially sleeved therebetween.

[0008] Preferably, a row of negative pressure holes is formed on the bottom plate portion of the front plate and the rear plate, respectively.

[0009] Preferably, the negative pressure hole is a semi-circular hole, and the number of negative pressure holes in a row is 87, with a hole diameter of 2mm.

[0010] Preferably, the depth of the hollowed-out portion is 2.4 mm.

[0011] Preferably, the junction between the hollowed-out portion and the base plate portion is rounded to prevent the accumulation of smoke droplets.

[0012] Preferably, the hollow stepped shaft includes a small diameter section and a large diameter section, the small diameter section having a diameter of 8mm, the large diameter section having a diameter of 10mm, and the total height being 16mm; The spacer sleeve has an outer diameter of 10mm, an inner diameter of 8mm, and a height of 3mm; The thickness of the gasket is 1.6 mm.

[0013] Preferably, the wire-suction guide assembly is connected to the air chamber body by fasteners that pass through the four hollow stepped shafts in the middle, and the fasteners are preferably M5 screws.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. In this utility model, by hollowing out the front and rear plates to a depth of 2.4mm, the effective cross-sectional area (S) of the tobacco channel is significantly increased. According to the principle of fluid mechanics (V=Q / S), under the condition that the air volume (Q) of the air chamber is constant, the increase in the flow area will directly lead to the reduction of the airflow velocity (V) in the channel. The lower airflow velocity can greatly reduce the impact, tumbling and friction on the tobacco during the conveying process, thereby effectively reducing the tobacco breakage rate, ensuring the integrity of the tobacco, and providing a high-quality raw material guarantee for rolling a fully filled cigarette. 2. In this utility model, by precisely opening a row of 87 semi-circular negative pressure holes with a diameter of 2mm at the bottom of both the front and rear plates, the traditional slit-type negative pressure adsorption is transformed into a total of 174 evenly distributed discrete adsorption points. This design greatly increases the effective area of ​​the negative pressure, making the negative pressure adsorption force stronger and more evenly distributed. Its effects are twofold: First, it enables the tobacco to be adsorbed more tightly and evenly onto the suction belt, completely eliminating the quality defect of "empty head" cigarettes caused by uneven adsorption; Second, the strong adsorption force can promptly grab and transport slightly condensed tobacco clumps, fundamentally avoiding the accumulation of tobacco in the guide rail inlet or channel, effectively preventing blockage failures during operation, and greatly improving the continuity and stability of equipment operation. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the entire invention. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is an exploded view of the entire structure of this utility model; Figure 5 This is a schematic diagram of the front panel structure in this utility model; Figure 6 This is a schematic diagram of the hollow stepped shaft in this utility model.

[0016] 1. Front panel; 2. Hollow stepped shaft; 3. Gasket; 4. Spacer sleeve; 5. Rear panel; 6. Hollowed-out section; 7. Negative pressure hole; 8. Base plate. Detailed Implementation

[0017] like Figures 1-6As shown, this utility model provides a novel tobacco suction guide rail for cigarette machines. Its core improvement lies in the innovative design of the structure of the front plate 1 and the rear plate 5 to synergistically increase the negative pressure adsorption area and reduce the tobacco flow rate, including: The first component and the second component are spaced apart and arranged opposite to each other. The first component is the front panel 1 and the second component is the rear panel 5. Multiple connectors pass through the first component and the second component to fix them together and form a tobacco channel between them. The connector is a hollow stepped shaft 2. The front plate 1 and the rear plate 5 are connected by the hollow stepped shaft 2, and a gasket 3 and a spacer sleeve 4 are sequentially fitted between them. The hollow stepped shaft 2 includes a small diameter section and a large diameter section. The diameter of the small diameter section is 8mm, the diameter of the large diameter section is 10mm, and the total height is 16mm. The outer diameter of the spacer sleeve 4 is 10mm, the inner diameter is 8mm, and the height is 3mm. The thickness of the gasket 3 is 1.6mm. At least one of the first component and the second component includes a base plate 8 facing the tobacco channel. The base plate 8 is provided with a plurality of negative pressure holes 7. The base plate 8 of the front side plate 1 and the rear side plate 5 are respectively provided with a row of negative pressure holes 7. The negative pressure holes 7 are semi-circular holes. There are 87 negative pressure holes 7 in a row. The diameter of the holes is 2mm. The interior of at least one of the first component and the second component is formed with a hollow part 6 communicating with the negative pressure holes 7. The depth of the hollow part 6 is 2.4mm. The junction between the hollow part 6 and the base plate 8 is rounded to prevent the accumulation of tobacco dust. In this embodiment, the front panel 1 (e.g. Figure 4 , Figure 5 The part shown is a long strip alloy component with a length of 485mm, a width of 20.2mm, and a thickness of 6.4mm. Its interior is hollowed out by mechanical processing to form a groove-shaped hollow part 6 with a depth of 2.4mm. This hollow part 6 runs through its length direction. At its bottom (i.e., the side facing the tobacco channel), a row of 87 semi-circular negative pressure holes 7 with a diameter of 2mm are precisely machined. These negative pressure holes 7 are connected to the hollow part 6. There are also six round holes on the front plate 1 for assembling the hollow stepped shaft 2. Rear panel 5 (e.g.) Figure 4 (As shown) It is symmetrical or nearly symmetrical with the front plate 1 in terms of size, material and core structure. Its length, width, thickness, hollow depth, number and diameter of negative pressure holes 7 are the same as those of the front plate 11. This ensures the uniformity of the flow field and negative pressure field in the tobacco channel. Gasket 33 (e.g.) Figure 4 The sheet shown is a long strip, 485 mm long and 18.4 mm wide. Crucially, its thickness is significantly reduced to 1.6 mm, and it has six round holes in the middle. Hollow stepped shaft 2 (e.g.) Figure 4 , Figure 6As shown, the core connector has a small end diameter of 8mm, a large end diameter of 10mm, and a total height of 16mm, with the large end being 3mm high. It has a through hole in the center for inserting fastening screws. The wire suction guide assembly is connected to the air chamber body by fasteners that pass through the four hollow stepped shafts 2 in the middle. The fasteners are preferably M5 screws. It should be noted that during assembly, the small ends of the six hollow stepped shafts 2 are sequentially inserted into the six round holes of the front plate 1. Then, the gaskets 3 are placed on the six hollow stepped shafts 2 so that they are against the front plate 1. Next, the spacer sleeves 4 are placed on the hollow stepped shafts 2 so that they are against the gaskets 3. Finally, the round holes of the rear plate 5 are aligned with the small ends of the hollow stepped shafts 2 for assembly. The large ends of the hollow stepped shafts 2 serve as axial positioning, ensuring that all components are tightly pressed together to form a rigid wire-suction guide assembly. This assembly is fastened to the air chamber of the ZJ17 cigarette machine by passing four M5 screws through the central through holes of the four hollow stepped shafts 2. It should be noted that, based on the fundamental principles of fluid mechanics, the relationship between air volume (Q), flow velocity (V), and cross-sectional area (S) is: V = Q / S; In the prior art, the cross-sectional area (Sold) of the tobacco channel is approximately the product of the distance (height) between the inner surfaces of the front plate 1 and the rear plate 5 and the width. In this invention, by hollowing out the interior of the front plate 11 and the rear plate 55 to a depth of 2.4mm, the "wall" of the channel is essentially pushed inward by 2.4mm. Therefore, the new effective flow cross-sectional area (Snew) is equal to the original area plus the annular area increased by the hollowed-out part 6. Under the premise that the airflow volume (Q) provided by the air chamber remains constant, since S new > S original, according to the formula V=Q / S, the airflow velocity (V) in the tobacco channel will inevitably be significantly reduced. The lower airflow velocity greatly reduces the impact force on the tobacco, thereby effectively reducing the tumbling, collision and breakage rate of the tobacco during the conveying process and ensuring the integrity of the tobacco. Meanwhile, in the existing technology, negative pressure adsorption mainly relies on the slits of the traditional wire-suction guide rail. This utility model opens 87 semi-circular negative pressure holes 7 with a diameter of 2mm at the bottom of the front plate 1 and the rear plate 5. This is equivalent to turning a single, concentrated negative pressure adsorption point into a total of 174 discrete, uniformly distributed negative pressure adsorption points, which greatly increases the area of ​​negative pressure action. The negative pressure (suction) generated by the air chamber acts evenly on the running suction belt through these 174 negative pressure holes 7. The larger and more uniform adsorption area allows the tobacco to be adsorbed more gently, more tightly, and more evenly on the surface of the suction belt, avoiding the formation of local sparseness or "voids". This makes the tobacco evenly and tightly distributed, and the density is consistent after rolling. It fundamentally eliminates the defect of "empty head" cigarettes caused by uneven adsorption. Moreover, the strong adsorption force can instantly grab and stably transport the tobacco. Even slightly condensed tobacco clumps can be effectively adsorbed and transported away, and are not easy to accumulate at the entrance or inside of the channel, thus avoiding the occurrence of blockage failure.

[0018] Specifically, by setting a hollow part 6 to increase the cross-sectional area of ​​the tobacco channel, and by setting multiple negative pressure holes 7 to increase the negative pressure adsorption area, the two work together to reduce the tobacco flow rate and enhance the uniformity and compactness of tobacco adsorption.

[0019] In summary, this utility model significantly increases the effective cross-sectional area (S) of the tobacco channel by hollowing out the interior of the front plate 1 and the rear plate 5 to a depth of 2.4mm. According to the principle of fluid mechanics (V=Q / S), under the condition that the air volume (Q) of the air chamber is constant, the increase in the flow area will directly lead to the reduction of the airflow velocity (V) in the channel. The lower airflow velocity can greatly reduce the impact, tumbling and friction on the tobacco during the conveying process, thereby effectively reducing the breakage rate of the tobacco, ensuring the integrity of the tobacco, and providing a high-quality raw material guarantee for rolling a fully filled cigarette. Meanwhile, this utility model precisely opens a row of 87 semi-circular negative pressure holes 7 with a diameter of 2mm at the bottom of the front plate 1 and the rear plate 5, transforming the traditional slit-type negative pressure adsorption into a total of 174 evenly distributed discrete adsorption points. This design greatly increases the effective area of ​​the negative pressure, making the negative pressure adsorption force stronger and more evenly distributed. Its effect is twofold: firstly, it enables the tobacco to be adsorbed more tightly and evenly onto the suction belt, completely eliminating the quality defect of "empty head" cigarettes caused by uneven adsorption; secondly, the strong adsorption force can promptly grab and transport slightly condensed tobacco clumps, fundamentally avoiding the accumulation of tobacco in the guide rail inlet or channel, effectively preventing blockage failures during operation, and greatly improving the continuity and stability of equipment operation.

[0020] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A novel cigarette-feeding guide rail for a cigarette-making machine, characterized in that, include: The first component and the second component are spaced apart and arranged opposite to each other; Multiple connectors extend through the first component and the second component to fix the two together and form a tobacco channel therebetween; At least one of the first component and the second component includes a bottom plate portion (8) facing the tobacco channel, the bottom plate portion (8) is provided with a plurality of negative pressure holes (7), and at least one of the first component and the second component has a hollow portion (6) that communicates with the negative pressure holes (7). The hollowed-out portion (6) is used to increase the cross-sectional area of ​​the tobacco channel, and the multiple negative pressure holes (7) are used to increase the negative pressure adsorption area. The two work together to reduce the tobacco flow rate and enhance the uniformity and compactness of tobacco adsorption.

2. The novel cigarette-feeding guide rail for a cigarette rolling machine according to claim 1, characterized in that: The first component is a front plate (1), the second component is a rear plate (5), the connecting component is a hollow stepped shaft (2), the front plate (1) and the rear plate (5) are connected by the hollow stepped shaft (2), and a gasket (3) and a spacer sleeve (4) are sequentially fitted therebetween.

3. A novel cigarette-feeding guide rail for a cigarette rolling machine according to claim 2, characterized in that: A row of negative pressure holes (7) are respectively opened on the bottom plate portion (8) of the front plate (1) and the rear plate (5).

4. A novel cigarette-feeding guide rail for a cigarette rolling machine according to claim 3, characterized in that: The negative pressure hole (7) is a semi-circular hole, and the number of negative pressure holes (7) in a row is 87, with a hole diameter of 2mm.

5. A novel cigarette-feeding guide rail for a cigarette rolling machine according to claim 2, characterized in that: The depth of the hollow part (6) is 2.4 mm.

6. A novel cigarette-feeding guide rail for a cigarette rolling machine according to claim 2, characterized in that: The junction between the hollow part (6) and the base plate part (8) is rounded to prevent the accumulation of smoke.

7. A novel cigarette-feeding guide rail for a cigarette rolling machine according to claim 2, characterized in that: The hollow stepped shaft (2) includes a small diameter section and a large diameter section. The diameter of the small diameter section is 8mm, the diameter of the large diameter section is 10mm, and the total height is 16mm. The spacer sleeve (4) has an outer diameter of 10mm, an inner diameter of 8mm, and a height of 3mm; The thickness of the gasket (3) is 1.6 mm.

8. A novel cigarette-feeding guide rail for a cigarette rolling machine according to claim 2, characterized in that: The wire-suction guide assembly is connected to the air chamber body by fasteners that pass through the four hollow stepped shafts (2) in the middle, and the fasteners are M5 screws.

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