A hollow filter rod production line

Abstract

The utility model belongs to filter stick production technical field discloses a kind of hollow filter stick production line.Including opening loose component, heating and rubbing component, cooling component, wrapping component and slitting component, opening loose component, heating and rubbing component, cooling component, wrapping component and slitting component are sequentially connected by conveying roller, opening loose component can open two cellulose acetate filaments, heating and rubbing component can heat two cellulose acetate filaments and shape, cooling component can two cellulose acetate filaments temperature setting is filter rod, wrapping component can be wrapped cellulose paper and formed paper outside filter rod, slitting component can filter rod be cut into hollow filter stick;Solve the problem that the surface of hollow filter stick is prone to fluff after being extruded after wrapping tipping paper under prior art.

Description

Technical Field

[0001] This utility model relates to the field of filter rod production technology, and in particular to a hollow filter rod production line. Background Technology

[0002] With the continuous development of cigarette filter technology, hollow filter rods are increasingly favored by consumers due to their novel appearance and easy smoking experience. The quality and performance of hollow filter rods have a significant impact on the quality of cigarettes. During the cigarette packing process, the agitator and rubbing plate of the filter rod hopper need to squeeze the hollow filter rod and wrap it with tipping paper. During this tipping paper wrapping process, the surface of traditional hollow filter rods is prone to fuzzing after being squeezed, which makes it difficult for the forming paper and tipping paper to adhere properly to the hollow filter rod. This can easily lead to the risk of tipping paper delamination and wrinkling in cigarettes.

[0003] Meanwhile, hollow filter rods are rapidly formed using diacetate cellulose filaments containing a large amount of triacetyl esters through high-temperature steam heating. Due to the high-temperature steam heating during the production process, hollow filter rods cannot effectively carry fragrance, which restricts their fragrance-enhancing function. This results in existing hollow filter rods being insufficient in terms of novelty and fragrance-enhancing function, making it difficult to meet the increasingly diverse needs of consumers. In addition, the circumference and length of hollow filter rods will change after being heated and cooled, which will affect their use to some extent. Utility Model Content

[0004] The purpose of this invention is to provide a hollow filter rod production line that solves the problem that the surface of the hollow filter rod is prone to fuzzing after being squeezed by the pressure of the paper-wrapped material in the prior art.

[0005] To achieve this objective, the present invention adopts the following technical solution: The present invention provides a hollow filter rod production line, including an opening component, a heating and wrapping component, a cooling component, a wrapping component, and a slitting component. The opening component, the heating and wrapping component, the cooling component, the wrapping component, and the slitting component are sequentially connected by conveyor rollers. The opening component can open the cellulose diacetate filaments, the heating and wrapping component can heat and shape the cellulose diacetate filaments, the cooling component can cool and shape the cellulose diacetate filaments into filter bars, the wrapping component can wrap cellulose paper and forming paper on the outside of the filter bars, and the slitting component can cut the filter bars into hollow filter rods.

[0006] Preferably, the opening assembly is equipped with a first opener, a second opener, and a third opener, and the diacetate fiber filaments pass through the first opener, the second opener, and the third opener in sequence.

[0007] Preferably, the opening assembly further includes a spraying system, wherein the spraying system is installed at the rear end of the third opener, and the spraying system sprays plasticizer onto the cellulose acetate filaments.

[0008] Preferably, the opening assembly is provided in two sets, and the diacetate fiber filaments fed out by the two sets of opening assemblies enter the filament feeder.

[0009] Preferably, a heating source is installed at the outlet end of the feeder, which can raise the temperature of the diacetate fiber filament.

[0010] Preferably, the cooling assembly includes a vortex tube with an air inlet in the middle section, a cold flow port and a hot flow port at both ends of the vortex tube, and a vortex vane rotatably installed inside the vortex tube, with the airflow in the air inlet driving the vortex vane to rotate.

[0011] Preferably, the cellulose paper is wrapped around the outside of the hollow filter rod, and the forming paper is wrapped around the outside of the cellulose paper.

[0012] Preferably, the cellulose paper and the forming paper are colored, and the cellulose paper and the forming paper are coated with fragrance.

[0013] Preferably, at least two sets of the vortex tubes are installed.

[0014] Preferably, a first opening roller and a second opening roller are installed sequentially between the first opening device and the second opening device, and the first opening roller and the second opening roller are in sequential contact with the diacetate fiber filaments.

[0015] Beneficial effects: The hollow filter rod production line of this utility model protects the hollow filter rod by wrapping it with cellulose paper and forming paper on the outside of the hollow filter rod using a wrapping component. This achieves waterproof and impact-resistant effects and can effectively avoid the risk of delamination and wrinkling of cigarette tipping paper caused by surface fuzzing during subsequent processing of the hollow filter rod under pressure and rubbing, thereby improving the quality of cigarette products. Attached Figure Description

[0016] Figure 1 This is a main drawing of the hollow filter rod production line of this utility model;

[0017] Figure 2 This is a drawing of the main body of the twisting component of this utility model;

[0018] Figure 3 This is a cross-sectional view of the vortex tube of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-section of the hollow filter rod of this utility model.

[0020] In the diagram: 1. Opening assembly; 11. First opener; 12. Second opener; 13. Third opener; 14. Fiber feeder; 15. First opening roller; 16. Second opening roller; 2. Heated wrapping assembly; 21. Heating source; 22. Wrapping component; 3. Cooling assembly; 31. Vortex tube; 311. Air inlet; 312. Cold flow port; 313. Hot flow port; 4. Wrapping assembly; 5. Slitting assembly; 6. Cellulose paper; 7. Formed paper; 8. Hollow filter rod. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0022] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0025] Under the existing technology, the surface of the hollow filter rod is prone to fuzzing during the process of wrapping the tipping paper. This causes the tipping paper to fail to adhere to the hollow filter rod, and the cigarette is prone to problems such as delamination and wrinkling of the tipping paper.

[0026] To solve the above problems, such as Figures 1 to 4 As shown, this utility model provides a hollow filter rod production line, including an opening component 1, a heating and wrapping component 2, a cooling component 3, a wrapping component 4, and a slitting component 5. The opening component 1, the heating and wrapping component 2, the cooling component 3, the wrapping component 4, and the slitting component 5 are connected sequentially by conveyor rollers. The opening component 1 can open the diacetate filaments, the heating and wrapping component 2 can heat and shape the diacetate filaments, and at the same time, the wrapping component 22 in the heating and wrapping component 2 can roll water-tip paper on the outside of the hollow filter rod 8, the cooling component 3 can cool and shape the diacetate filaments into filter strips, the wrapping component 4 can wrap cellulose paper 6 and forming paper 7 on the outside of the filter strips, and the slitting component 5 can cut the filter strips into hollow filter rods 8.

[0027] The coordinated efforts of the opening component 1, the heating and rolling component 2, and the cooling component 3 produce a hollow filter rod 8 with a stable structure and regular shape. On this basis, the wrapping component 4 covers it with an outer layer of protection composed of cellulose paper 6 and forming paper 7. This outer layer directly and effectively solves the pain points in subsequent cigarette processing. By improving the mechanical strength of the filter rod, it effectively avoids the surface fuzzing problem caused by squeezing and rolling on the high-speed cigarette machine, and eliminates the quality defects of cigarette tipping paper delamination, bubbling, and wrinkling caused by filter rod fuzzing.

[0028] The opening component 1 opens up the tightly packed diacetate fiber filaments, making them fluffy and uniform. This is the foundation for all subsequent processing. Fully opening up ensures that the fibers can be evenly distributed, creating a prerequisite for forming stable and regular hollow channels.

[0029] The opening assembly 1 is equipped with a first opener 11, a second opener 12 and a third opener 13. Diacetate fiber filaments pass through the first opener 11, the second opener 12 and the third opener 13 in sequence. This utility model is provided with three sets of openers, which can avoid uneven opening and the problem that the hollow structure formed later may be skewed or collapsed.

[0030] The opening assembly 1 also includes a spraying system. The spraying system is installed at the rear end of the third opener 13 and sprays plasticizer onto the cellulose diacetate filaments. The fully opened filaments have a loose structure and a large specific surface area, which provides ideal conditions for the uniform adsorption and penetration of plasticizer.

[0031] The plasticizer adheres to the surface of each fiber, avoiding localized over- or under-consumption. This uniformity is a fundamental prerequisite for the subsequent formation of a stable and consistent hollow structure. The plasticizer (usually triacetin) adheres to the fibers at room temperature and is activated by heat in the subsequent heated rolling assembly 2, causing the fiber surface to swell. Under the mechanical pressure of the rolling rollers, these activated fibers can firmly bond together. The curing process gives the filter rod the necessary hardness and strength, enabling it to be shaped and maintain its form. The uniformly distributed plasticizer, after curing, forms numerous solid "bonding points" between the fibers: this greatly enhances the internal integrity of the filter rod, making its surface smoother and denser. A robust and smooth-surfaced filter rod can effectively resist friction and compression during subsequent processing and conveying, greatly reducing the risk of surface "fuzzing".

[0032] Two sets of opening components 1 are provided. The diacetate fiber filaments fed from the two sets of opening components 1 enter the filament feeder 14. By setting two sets of opening components 1 and merging them at the end, the diacetate fiber filaments can be made denser, resulting in a higher structural strength of the final hollow filter rod 8.

[0033] A heating source 21 is installed at the outlet end of the yarn feeder 14. The heating source 21 can raise the temperature of the diacetate fiber yarn. The heating module uses dry saturated steam at a temperature of 110-150℃ to heat and shape the diacetate fiber yarn, so that the diacetate fiber yarn can be shaped quickly.

[0034] Then, the cooling component 3 cools and shapes the hollow filter rod 8 with low-temperature positive pressure air at a pressure of 0.05-0.2MPa and a temperature of -10-10℃. The cooling component 3 includes a vortex tube 31, with an air inlet 311 installed in the middle section of the vortex tube 31. Cold flow port 312 and hot flow port 313 are respectively opened at both ends of the vortex tube 31. A vortex vane is rotatably installed inside the vortex tube 31, and the airflow in the air inlet 311 drives the vortex vane to rotate.

[0035] Normal temperature positive pressure air enters the vortex chamber inside the vortex tube 31 through the air inlet 311, and is split by the separation orifice plate. High temperature positive pressure air is discharged from the hot flow port 313, and low temperature positive pressure air is discharged from the cold flow port 312. The regulating valve on the hot flow port 313 can adjust the outlet pressure.

[0036] The aforementioned vortex tube 31 structure is a publicly available prior art and will not be described in detail here. This device avoids the use of an additional power source, effectively saving energy and playing an environmental protection role. At the same time, the hollow filter rod 8 is cooled and solidified in stages by multiple vortex tubes 31, which can effectively avoid phenomena such as delamination and shrinkage caused by changes in the circumference and length of the inner core after the hollow filter rod is wrapped with forming paper.

[0037] Cellulose paper 6 is wrapped around the outside of hollow filter rod 8, and forming paper 7 is wrapped around the outside of cellulose paper 6 to protect the hollow filter rod 8 inside. Cellulose paper 6 and forming paper 7 are colored or other colors, and fragrance is carried on cellulose paper 6 and forming paper 7 to enhance the fragrance of hollow filter rod 8.

[0038] A first opening roller 15 and a second opening roller 16 are installed sequentially between the first opening device 11 and the second opening device 12. The first opening roller 15 and the second opening roller 16 come into contact with the diacetate fiber filaments in sequence. When the diacetate fiber filaments are fed, they are compressed into a strip and the fibers are tightly wrapped together. The surfaces of the two sets of opening rollers usually have a needle-like or toothed structure. Through high-speed rotation, the tips of the teeth are forcibly inserted into the filaments, and the mechanical force is used to tear and separate the large clumps of fibers into a finer and fluffier state.

[0039] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A hollow filter rod production line, characterized in that, The filter includes an opening assembly (1), a heating and wrapping assembly (2), a cooling assembly (3), a wrapping assembly (4), and a slitting assembly (5). The opening assembly (1), the heating and wrapping assembly (2), the cooling assembly (3), the wrapping assembly (4), and the slitting assembly (5) are connected sequentially by conveyor rollers. The opening assembly (1) can open the cellulose diacetate filaments. The heating and wrapping assembly (2) can heat and shape the cellulose diacetate filaments. The cooling assembly (3) can cool and shape the cellulose diacetate filaments into filter strips. The wrapping assembly (4) can wrap cellulose paper (6) and forming paper (7) on the outside of the filter strips. The slitting assembly (5) can cut the filter strips into hollow filter rods (8).

2. The hollow filter rod production line according to claim 1, characterized in that, The opening assembly (1) is equipped with a first opener (11), a second opener (12) and a third opener (13), and the diacetate fiber filaments pass through the first opener (11), the second opener (12) and the third opener (13) in sequence.

3. The hollow filter rod production line according to claim 2, characterized in that, The opening assembly (1) also includes a spraying system. The spraying system is installed at the rear end of the third opener (13) and sprays plasticizer onto the diacetate filaments.

4. The hollow filter rod production line according to claim 3, characterized in that, The opening assembly (1) is provided in two sets, and the diacetate fiber filaments fed out by the two sets of opening assemblies (1) enter the filament feeder (14).

5. The hollow filter rod production line according to claim 4, characterized in that, A heating source (21) is installed at the outlet end of the feeder (14), which can raise the temperature of the diacetate fiber filament.

6. The hollow filter rod production line according to claim 1, characterized in that, The cooling assembly (3) includes a vortex tube (31), an air inlet (311) is installed in the middle section of the vortex tube (31), a cold flow port (312) and a hot flow port (313) are respectively opened at both ends of the vortex tube (31), and a vortex vane is rotatably installed inside the vortex tube (31). The airflow in the air inlet (311) drives the vortex vane to rotate.

7. The hollow filter rod production line according to claim 1, characterized in that, The cellulose paper (6) is wrapped around the outside of the hollow filter rod (8), and the forming paper (7) is wrapped around the outside of the cellulose paper (6).

8. The hollow filter rod production line according to claim 1, characterized in that, The cellulose paper (6) and the molding paper (7) are colored, and the cellulose paper (6) and the molding paper (7) are loaded with fragrance.

9. The hollow filter rod production line according to claim 6, characterized in that, At least two sets of the vortex tubes (31) are installed.

10. The hollow filter rod production line according to claim 2, characterized in that, A first opening roller (15) and a second opening roller (16) are sequentially installed between the first opening device (11) and the second opening device (12), and the first opening roller (15) and the second opening roller (16) sequentially contact the diacetate fiber filaments.

Images