Spiral air cut tobacco feeder

Abstract

The utility model provides a spiral air cut tobacco feeder which comprises a shell and an inner core, the inner core is sleeved in the shell to form the spiral air cut tobacco feeder for forming a filter stick, a transition conical part at one end of the shell is communicated with an outlet cylindrical part, an outlet part at the end part of the inner core is provided with a spiral structure, and the spiral structure is positioned in the transition conical part. The inner core end outlet is formed in the outlet cylindrical part, and the outer diameter of the inner core end outlet is smaller than the inner diameter of the outlet cylindrical part; a compressed air connector is arranged on the shell transition conical part and faces the spiral structure. The tows can be fed into a filter stick smoke gun in a spiral shape forwards, the arrangement state of the tows in a filter stick is changed, a common ordered arrangement mode is changed into a twisting and winding mode, then the operation state of smoke in the filter stick is changed, the tar and harm reducing performance of the filter stick is improved, and the differentiated filtering effect is generated.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter stick processing parts technical field, especially a spiral wind silk feeder. BACKGROUND

[0002] Cigarette filter plays a great role in reducing harm of smoking and improving cigarette grade, and is an indispensable part in the process of cigarette production. Most of the cigarette filters on the market are prepared by wrapping the tow added with solidifying agent with forming paper, and the high-pressure silk feeder used in the production process sends air along the axial direction of the filter stick, and then sends the tow into the filter stick. The tow in the filter stick is in a roughly parallel ordered arrangement, and the smoke collides and adsorbs and filters on the surface of the tow when passing through the filter stick, and is roughly along the axial direction of the filter stick.

[0003] With the progress of science and technology and the further improvement of the requirement of people on reducing harm of smoking, the development and application of various new filter sticks have been paid more and more attention. The spiral wind silk feeder provided by the utility model can change the arrangement state of the tow in the filter stick from the usual ordered arrangement to the kinked and twisted mode, and then change the running state of the smoke in the filter stick, produce differential filtering effect, improve the harm reduction performance of the filter stick, and meet the development requirement of some customers on the new filter stick. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the utility model is to provide a spiral wind silk feeder, which can send the tow into the filter stick gun in a spiral shape, change the arrangement state of the tow in the filter stick from the usual ordered arrangement to the kinked and twisted mode, and then change the running state of the smoke in the filter stick, improve the harm reduction performance of the filter stick, and produce differential filtering effect.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a spiral wind silk feeder, which comprises a shell and an inner core, the inner core is sleeved in the shell to form a spiral wind silk feeder for filter stick forming, a transition conical part at one end of the shell is communicated with a columnar part of an outlet, a spiral structure is arranged at an outlet part of an end of the inner core, the spiral structure is located inside the transition conical part, the outlet part of the end of the inner core is arranged inside the columnar part of the outlet, and the outer diameter of the outlet part of the end of the inner core is smaller than the inner diameter of the columnar part of the outlet.

[0006] A compressed air interface is arranged on the transition conical part of the shell, and the compressed air interface faces the spiral structure.

[0007] In the preferred scheme, the spiral structure is a plurality of spiral grooves or a plurality of spiral blades, the outlet part of the end of the inner core is a conical inclined surface structure, and the plurality of spiral grooves are arranged on the conical inclined surface structure.

[0008] In the preferred scheme, the plurality of spiral grooves are arranged in parallel, and the included angle between the spiral grooves and the axial line is 15-60°.

[0009] In a preferred embodiment, the angle between the transition conical portion and the axis is greater than the angle between the conical surface of the outlet of the end portion of the inner core and the axis.

[0010] The angle between the axis of the transition conical portion and the axis is 40-45°.

[0011] In a preferred embodiment, the spiral structure is a plurality of spiral blades, the outlet of the end portion of the inner core is a cylindrical structure, and the plurality of spiral blades are arranged uniformly on the outer surface of the cylindrical structure.

[0012] In a preferred embodiment, the plurality of spiral blades are arranged in parallel, and the angle between the spiral blades and the axis is 15-60°.

[0013] In a preferred embodiment, the inner core has a narrowed structure inside, and the outlet of the end portion of the inner core is close to the position of the cylindrical portion of the outlet of the outer shell.

[0014] In a preferred embodiment, the outer circle of the outlet of the end portion of the inner core is provided with a guide slope, and the inner circle of the position of the cylindrical portion of the outlet of the outer shell is provided with a guide slope.

[0015] In a preferred embodiment, the tail portion of the outer shell is further provided with an internal thread, the tail portion of the inner core is provided with an external thread matched with the internal thread, and the distance between the spiral structure and the inner surface of the transition conical portion is adjusted by the thread.

[0016] In a preferred embodiment, the tail end of the inner core is further provided with a limiting plate, and the limiting plate is limited by abutting against the tail end of the outer shell.

[0017] The spiral air-blowing filament feeder provided by the utility model improves the performance of filter rods: the arrangement state of the filament bundle in the filter rod can be changed from the traditional roughly parallel ordered arrangement to the kinked and twisted mode, thereby changing the running track of the smoke in the filter rod, producing a differentiated filtering effect, effectively improving the performance of reducing tar and harm of the filter rod, meeting the market demand of developing new filter rods, and helping to improve the quality and health properties of the cigarette product.

[0018] The length of the engagement of the internal thread on the outer shell and the external thread on the inner core is adjusted, so that the air-blowing amount and the spiral wind intensity can be conveniently adjusted. When the threads are completely engaged, the maximum wind pressure and the strongest spiral wind can be realized, which is suitable for the case that the requirement for twisting and winding of the filament bundle is high. After the threads are adjusted back to increase the gap, the wind pressure is reduced but the overall air-blowing amount can be increased, so as to meet the diversified demand for the air-blowing amount and the wind intensity of different production processes or filament bundle characteristics, and the adaptability of the equipment under different working conditions is enhanced.

[0019] Stable filament conveying: The guide ramps on the outer ring of the inner core outlet and the inner ring of the cylindrical portion of the outer shell outlet, along with the limiting plate at the tail end of the inner core, jointly ensure the stability of the filament conveying. The guide ramps enhance the airflow intensity and guide the filaments through smoothly, while the limiting plate prevents excessive displacement of the inner core, ensuring the relative position of the inner core and the outer shell remains stable. This reduces abnormalities such as jamming and deviation during filament conveying, improving the reliability of the production process and the consistency of product quality. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Fig. 1 This is a cross-sectional view of the spiral groove structure of this utility model;

[0022] Fig. 2 This is a cross-sectional view of the spiral blade of this utility model;

[0023] Fig. 3 This is a cross-sectional view of the spiral groove shell of this utility model;

[0024] Fig. 4 This is a cross-sectional view of the spiral blade shell of this utility model;

[0025] Fig. 5 This is a disassembled structural diagram of the inner core of the spiral groove of this utility model;

[0026] Fig. 6 This is a disassembled structural diagram of the inner core of the spiral blade of this utility model.

[0027] In the figure: outer shell 1; internal thread 101; compressed air interface 102; transition conical part 103; outlet cylindrical part 104; inner core 2; external thread 201; limiting plate 202; spiral groove 3; spiral blade 4. Detailed Implementation

[0028] Example 1

[0029] like Figs. 1-6 As shown, a spiral air feeder includes a housing 1 and an inner core 2. The inner core 2 is fitted inside the housing 1 to form a spiral air feeder for filter rod forming. One end of the housing 1 has a transition conical portion 103 connected to an outlet cylindrical portion 104. The outlet portion at the end of the inner core 2 is provided with a spiral structure, which is located inside the transition conical portion 103. The outlet at the end of the inner core 2 is located inside the outlet cylindrical portion 104, and the outer diameter of the outlet at the end of the inner core 2 is smaller than the inner diameter of the outlet cylindrical portion 104.

[0030] The outer casing 1 has a compressed air port 102 on the transition conical portion 103, and the compressed air port 102 faces the spiral structure.

[0031] During the filter rod forming process, this spiral air feeder enables the filament bundle to be fed forward into the filter rod smoke gun in a spiral shape. This changes the traditional high-pressure feeder's method of arranging the filament bundle in a roughly parallel and orderly manner within the filter rod, instead creating a twisted and wound arrangement. This change in filament bundle arrangement alters the flow of flue gas within the filter rod, resulting in differentiated filtration effects. This helps improve the filter rod's tar reduction and harm reduction performance, meeting the development needs of some customers for new types of filter rods.

[0032] The positional relationship between the transition conical portion 103 of the outer shell 1 and the outlet at the end of the inner core 2, and the design that the outer diameter of the outlet at the end of the inner core 2 is smaller than the inner diameter of the cylindrical portion 104 at the outlet of the outer shell 1, combined with the layout of the compressed air interface 102 on the outer shell 1 facing the spiral structure, allows for effective adjustment of the airflow volume and spiral wind intensity. The spiral structure consists of multiple spiral grooves 3 or multiple spiral blades 4. The outlet at the end of the inner core 2 is a conical inclined surface structure, with multiple spiral grooves 3 arranged on the conical inclined surface structure. The multiple spiral grooves 3 are arranged in parallel, and the angle between the spiral grooves 3 and the axis is 15-60°. The angle between the transition conical portion 103 and the axis is greater than the angle between the axis of the conical inclined surface at the outlet of the inner core 2; the angle between the axis of the transition conical portion 103 is 40-45°.

[0033] The inner core 2 of the spiral air feeder has a tapered inclined surface outlet structure, and its spiral structure can be multiple spiral grooves 3 or multiple spiral blades 4. When it is a spiral groove 3, the multiple spiral grooves 3 are arranged in parallel on the tapered inclined surface and the angle with the axis is 15-60°. The angle a45° between the transition tapered part 103 of the outer shell 1 and the axis is greater than the angle b40° between the tapered inclined surface of the inner core 2 outlet and the axis. The inner diameter c = 20mm of the cylindrical part 104 of the outer shell 1 and the outer diameter d = 18mm of the inner core 2 outlet are etched on the tapered surface. Six spiral grooves 3 are engraved on the tapered surface, and the angle between the grooves and the axis is 30°.

[0034] The outer casing 1, transitional conical portion 103, is equipped with a compressed air interface 102, which, when connected to compressed air, can blow out spiral air. The air volume and spiral air intensity are adjusted by regulating the engagement length of the internal thread 101 on the outer casing and the external thread 201 on the inner core. When the internal thread 101 and the external thread 201 are fully engaged, the front end of the composite conical portion at the outlet end of the inner core 2 is in close contact with the internal cavity wall of the transitional conical portion 103 of the outer casing 1, and all the compressed air is sent out through the spiral groove 3, forming the strongest spiral air but with a small air volume; when the internal and external threads are adjusted back, the gap increases, and part of the air volume is sent out directly along the axis, increasing the overall air volume but decreasing the spiral air intensity.

[0035] The 35,000d loosened filament bundle is fed into the filament feeder, where it is twisted and blown out by a spiral wind, and then fed into the smoking gun to form a new type of filter rod in a filament-wound state.

[0036] In the preferred embodiment, the outer ring of the outlet at the end of the inner core 2 is provided with a guide slope, and the inner ring of the cylindrical portion 104 at the outlet of the outer shell 1 is also provided with a guide slope. This unique design enhances the air supply intensity. During the operation of the spiral air feeder, when compressed air pushes the filament bundle through the outlet portions of the inner core 2 and the outer shell 1, the guide slope guides the airflow and the filament bundle, making the airflow more concentrated and smoother, reducing airflow turbulence and energy loss, thereby effectively enhancing the air supply intensity and ensuring that the filament bundle can be fed into the filter rod cigarette gun in a more stable and efficient spiral shape.

[0037] In the preferred embodiment, the inner end of the outer shell 1 is provided with an internal thread 101, and the inner core 2 is provided with a mating internal thread 101 and an external thread 201. The inner core 2 adjusts the distance between the spiral structure and the inner surface of the transition tapered part 103 through the thread.

[0038] In the structural design of the spiral air feeder, the internal thread 101 inside the tail of the outer shell 1 and the external thread 201 inside the tail of the inner core 2 cooperate to form an adjustable mechanical connection. By rotating the inner core 2, the distance between the spiral structure on the inner core 2 and the inner surface of the transition conical portion 103 of the outer shell 1 can be precisely changed through the meshing action of the threads. This adjustment mechanism is crucial to the performance of the feeder. When it is necessary to enhance the spiral air strength, the inner core 2 can be screwed in, bringing the spiral structure closer to the inner surface of the transition conical portion 103, reducing the air leakage path, and allowing more compressed air to pass through the spiral structure to form a strong spiral air. When it is necessary to increase the air volume, the inner core 2 can be screwed out, increasing the gap between the spiral structure and the inner surface of the transition conical portion 103, allowing some air to be sent directly forward along the axial direction, thereby increasing the air volume and meeting the requirements for wire bundle conveying under different working conditions.

[0039] In the preferred embodiment, the inner core 2 is further provided with a limiting plate 202 at its tail end, which abuts against the upper limit of the tail end of the outer shell 1.

[0040] The limiting plate 202 at the tail end of the inner core 2 plays a crucial limiting role. During the operation of the spiral air feeder, when the position of the inner core 2 is adjusted by the thread, the limiting plate 202 can prevent the inner core 2 from being excessively screwed in or out. This avoids excessive compression between the spiral structure and the inner surface of the transition conical part 103 of the outer shell 1 due to excessive screwing of the inner core 2, which may cause damage to components or affect the normal flow of air; it ensures that the inner core 2 is always in the correct working position, maintains the stability of the feeder structure and the reliability of its operation, and ensures the stable delivery of the filament bundle during the filter rod forming process.

[0041] Example 2

[0042] Further explanation in conjunction with Example 1, such as Figs. 1-6The structure shown has a spiral structure consisting of multiple spiral blades 4, and the outlet at the end of the inner core 2 is a column structure. The multiple spiral blades 4 are evenly arranged on the outer surface of the column structure.

[0043] In the preferred embodiment, multiple helical blades 4 are arranged in parallel, and the angle between the helical blades 4 and the axis is 15-60°.

[0044] In the preferred embodiment, the inner core 2 has a constricted structure inside which forms the running channel of the filament bundle, and the end outlet of the inner core 2 is located near the outlet cylindrical portion 104 of the outer shell 1.

[0045] The inner core 2 of the spiral air conveyor has a cylindrical outlet with multiple spiral blades 4 evenly arrayed on its outer surface. These spiral blades 4 are arranged in parallel, with an angle between them and the axis ranging from 15° to 60°, which is 30° in this application. The inner core 2 has a constricted structure inside, forming a channel for the yarn bundle to run, and its end outlet is close to the cylindrical outlet portion 104 of the outer shell 1.

[0046] The outer casing 1 has an internal thread with a nominal diameter of H = 70 mm on the inner side of the inlet end, and the inner core 2 has a matching external thread with a nominal diameter of H = 70 mm on the outer side of the inlet end. The two are connected by threads to form a spiral air feeder for filter rod forming. The outlet inner cavity diameter of the outer casing 1 is c = 20 mm, the transition tapered part 103 has an angle α = 40° with the axis, the outlet outer diameter of the inner core 2 is d = 19 mm, and the cylindrical surface has 8 parallel spiral blades 4 forming 8 grooves.

[0047] When compressed air is connected to the compressed air interface 102, spiral air can be blown out. The air volume and spiral air intensity can be adjusted by adjusting the thread engagement length between the outer shell and the inner core. When the threads are fully engaged, the front blade of the cylindrical part at the outlet end of the inner core is tightly fitted with the inner cavity wall of the transition conical part 103 of the outer shell 1. At this time, all the compressed air entering from the compressed air interface 102 is blown out through the spiral groove formed by the spiral blades 4 of the inner core 2, generating spiral air. The air pressure reaches its maximum, and the spiral air intensity is also the strongest.

[0048] When the return thread increases the distance between the inner and outer threads, the gap between the front end of the cylindrical part of the inner core outlet and the inner cavity wall of the transition tapered part 103 of the outer shell becomes larger, and part of the air volume is sent out directly along the axis, and the overall air volume increases accordingly, but the spiral wind intensity gradually decreases.

[0049] The 17000d loosened filament bundle is fed into the feeder, where it is twisted and wound by a spiral wind and then blown out. It can then be fed into the smoking gun to produce a new type of filter rod with the filament bundle in a wound state.

[0050] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A spiral air-feeding wire conveyor, characterized in that: The device includes an outer shell (1) and an inner core (2). The inner core (2) is fitted inside the outer shell (1) to form a spiral air feeder for filter rod forming. One end of the outer shell (1) is connected to the outlet cylindrical part (104). The outlet part of the inner core (2) is provided with a spiral structure. The spiral structure is located inside the transition conical part (103). The outlet of the inner core (2) is located inside the outlet cylindrical part (104). The outer diameter of the outlet of the inner core (2) is smaller than the inner diameter of the outlet cylindrical part (104). The outer casing (1) has a compressed air port (102) on the transition conical part (103), and the compressed air port (102) faces the spiral structure.

2. The spiral air-feeding wire conveyor according to claim 1, characterized in that: The spiral structure is a multi-spiral groove (3) or a multi-spiral blade (4), and the end outlet of the inner core (2) is a conical inclined surface structure, with the multi-spiral groove (3) set on the conical inclined surface structure.

3. The spiral air-feeding wire feeder according to claim 2, characterized in that: Multiple spiral grooves (3) are arranged in parallel, and the angle between the spiral grooves (3) and the axis is 15-60°.

4. A spiral air-feeding wire feeder according to claim 2, characterized in that: transition The angle between the tapered part (103) and the axis is greater than the angle between the axis of the tapered inclined surface at the end of the inner core (2); The angle between the centerlines of the transition tapered section (103) is 40-45°.

5. A spiral air-feeding wire feeder according to claim 2, characterized in that: The spiral structure consists of multiple spiral blades (4), and the end outlet of the inner core (2) is a column structure. Multiple spiral blades (4) are evenly arrayed on the outer surface of the column structure.

6. The spiral air-feeding wire conveyor according to claim 5, characterized in that: Multiple helical blades (4) are arranged in parallel, and the angle between the helical blades (4) and the axis is 15-60°.

7. The spiral air-feeding wire feeder according to claim 1, characterized in that: The inner core (2) has a constricted structure inside which forms the running channel of the filament bundle, and the end outlet of the inner core (2) is close to the outlet column part (104) of the outer shell (1).

8. The spiral air-feeding wire conveyor according to claim 7, characterized in that: The outer ring of the outlet of the inner core (2) is provided with a guide slope, and the inner ring of the outlet column part (104) of the outer shell (1) is provided with a guide slope.

9. The spiral air-feeding wire conveyor according to claim 1, characterized in that: The outer shell (1) is provided with an internal thread (101) inside the tail, and the inner core (2) is provided with a mating internal thread (101) and an external thread (201) inside the tail. The inner core (2) adjusts the distance between the spiral structure and the inner surface of the transition tapered part (103) by adjusting the thread.

10. A spiral air-feeding wire feeder according to claim 1, characterized in that: The inner core (2) is also provided with a limiting plate (202) at the tail end, which abuts against the upper limit of the tail end of the outer shell (1).

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