Air deflector and air opener

Abstract

The utility model belongs to the technical field of cigarette production equipment, and discloses an air deflector and an air opener, the air deflector comprises a fixed bottom plate and a movable bottom plate, an air guide hole is defined between the fixed bottom plate and the movable bottom plate, the fixed bottom plate and the movable bottom plate are connected in a sliding mode, the movable bottom plate can move relative to the fixed bottom plate in the moving direction of tows, and the movable bottom plate can move relative to the fixed bottom plate. And the cross sectional area of the air guide hole is adjustable. The relative distance between the movable bottom plate and the fixed bottom plate can be adjusted, the ventilation area of the air guide holes can be adjusted, and therefore the air volume of airflow flowing through the air guide holes can be accurately adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production equipment, in particular to an air guide plate and an air opener. Background Art

[0002] In cigarette production, especially in the manufacture of filter rods, air opening devices are commonly used to unwind, loosen, de-curl, and reassemble the tow bands of acetate or other fiber filter elements. Traditionally, tow opening involves two main methods: mechanical opening and air opening. Mechanical opening primarily uses the speed difference between two sets of opening rollers to create an opening ratio, generating longitudinal tension and opening the tow in the longitudinal direction. Air opening, on the other hand, utilizes air pressure to evenly unwrap the tow bands, facilitating subsequent processing.

[0003] Existing tow opening devices generally suffer from the difficulty of precisely controlling the air volume, resulting in variations in the opening effect at different stages of the tow. This variation not only affects the uniformity of the filter rods but also increases the difficulty of adjustment and production costs during the production process. Utility Model Content

[0004] The purpose of the utility model is to provide an air guide plate and an air opener to solve the problem of how to accurately adjust the air volume proposed in the prior art.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] An air guide plate for an air opener, wherein the air guide plate comprises:

[0007] A fixed bottom plate and a movable bottom plate, an air guide hole is formed between the fixed bottom plate and the movable bottom plate, the fixed bottom plate and the movable bottom plate are slidably connected, and the movable bottom plate can move relative to the fixed bottom plate along the movement direction of the filament bundle so that the cross-sectional area of the air guide hole is adjustable.

[0008] Optionally, one of the movable base plate and the fixed base plate is provided with a mounting hole, and the other is provided with a threaded hole, and the mounting holes and the threaded holes are distributed opposite each other in a one-to-one correspondence along the moving direction of the filament bundle;

[0009] The air guide plate further includes a fastener, which passes through the mounting hole along the moving direction of the filament bundle and is then threadedly connected to the threaded hole.

[0010] Optionally, the fixed base plate includes a base plate body and two connecting blocks provided on opposite sides of the base plate body in a first direction, the base plate body and the two connecting blocks are connected to form a U-shaped fixed base plate, and the opening of the fixed base plate faces the same direction as or opposite to the moving direction of the filament bundle;

[0011] The movable bottom plate is slidably connected to the two connecting blocks at both ends in the first direction along the moving direction of the tow, and the movable bottom plate blocks the opening of the fixed bottom plate, so that the air guide hole is formed between the bottom plate body, the two connecting blocks and the movable bottom plate;

[0012] The first direction, the thickness direction of the air guide plate and the moving direction of the filament bundle are perpendicular to each other.

[0013] Optionally, one of the movable base plate and the fixed base plate is movably connected to a limiting member, and the limiting member abuts against the other along the moving direction of the filament bundle.

[0014] Optionally, the air guide hole is arranged obliquely relative to the thickness direction of the air guide plate, and along the moving direction of the filament bundle, the outlet end of the air guide hole is located downstream of the inlet end of the air guide hole.

[0015] Optionally, the air guide hole has two air guide surfaces arranged opposite to each other along the moving direction of the filament bundle, wherein one of the air guide surfaces is arranged on the movable bottom plate, and the other air guide surface is arranged on the fixed bottom plate;

[0016] The air guide surface is arranged between the air outlet end surface of the air guide hole and the air inlet end surface of the air guide hole. The air guide surface is along the movement direction of the filament bundle. The air guide surface located downstream is an outward convex arc surface or an inclined plane, and the air guide surface located upstream is an inward concave arc surface or an inclined plane.

[0017] Optionally, along the moving direction of the filament bundle, of the two air-guiding surfaces, the air-guiding surface located downstream is smoothly connected to the air outlet end surface.

[0018] The air opener comprises a cover plate and the air guide plate, a filament channel is formed between the cover plate and the air guide plate, the filament channel is arranged through along the movement direction of the filament, and the air guide hole is connected to the filament channel.

[0019] Optionally, one end of the cover plate is rotatably connected to one end of the fixed base plate, and the other end is detachably connected to the other end of the fixed base plate.

[0020] Optionally, the fixed base plate and the cover plate are fixed by magnetism.

[0021] Beneficial effects of the utility model:

[0022] The utility model sets the air guide plate as a separate fixed bottom plate and a movable bottom plate, and an air guide hole is formed between the fixed bottom plate and the movable bottom plate, so that the air flow can evenly loosen the silk bundle through the air guide hole, the fixed bottom plate and the movable bottom plate are slidably connected, and the movable bottom plate moves relative to the fixed bottom plate along the movement direction of the silk bundle, and the ventilation area of the air guide hole can be adjusted by adjusting the relative distance between the movable bottom plate and the fixed bottom plate, thereby making it possible to accurately adjust the air flow volume flowing through the air guide hole, thereby greatly improving the uniformity of the silk bundle loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of an air opener provided in an embodiment of the present utility model;

[0024] Figure 2 This is an exploded view of the air opener provided in an embodiment of the present utility model;

[0025] Figure 3 It is a cross-sectional view of the air opener provided in an embodiment of the present utility model.

[0026] In the figure: 1. Cover plate; 2. Movable bottom plate; 21. Groove; 22. Fastener; 23. First air guide surface; 3. Fixed bottom plate; 31. Bottom plate body; 32. Connecting block; 321. Connecting shaft; 33. Convex rail; 34. Limit screw; 35. Second air guide surface; 4. Air guide hole; 5. Tow channel. DETAILED DESCRIPTION

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, not all of its components.

[0028] In the description of this utility model, unless otherwise specified or limited, the terms "connected," "connect," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0030] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

[0031] like Figure 1-3 As shown, an embodiment of the utility model provides an air guide plate for an air opener, the air guide plate includes a fixed bottom plate 3 and a movable bottom plate 2, an air guide hole 4 is formed between the fixed bottom plate 3 and the movable bottom plate 2, the fixed bottom plate 3 and the movable bottom plate 2 are slidably connected, and the movable bottom plate 2 can move relative to the fixed bottom plate 3 along the movement direction of the filament bundle so that the cross-sectional area of the air guide hole 4 is adjustable.

[0032] By setting the air guide plate as a separate fixed bottom plate 3 and a movable bottom plate 2, an air guide hole 4 is formed between the fixed bottom plate 3 and the movable bottom plate 2, so that the air flow flows out through the air guide hole 4 and then loosens the filament bundle. The movable bottom plate 2 moves relative to the fixed bottom plate 3 along the movement direction of the filament bundle. By adjusting the relative distance between the movable bottom plate 2 and the fixed bottom plate 3, the ventilation area of the air guide hole 4 can be adjusted, and then the air volume flowing through the air guide hole 4 can be accurately adjusted, thereby greatly improving the uniformity of the loosening of the filament bundle.

[0033] Furthermore, one of the movable base plate 2 and the fixed base plate 3 is provided with a mounting hole, and the other is provided with a threaded hole, and the mounting hole and the threaded hole are distributed opposite each other in a one-to-one correspondence along the movement direction of the filament bundle; the air guide plate also includes a fastener 22, which passes through the mounting hole along the movement direction of the filament bundle and is threadedly connected to the threaded hole.

[0034] A direction perpendicular to both the moving direction of the filament bundle and the thickness direction of the air guide plate is defined as a first direction.

[0035] For example, the movable base plate 2 is provided with two mounting holes, and the fixed base plate 3 is provided with two threaded holes. Fasteners 22 are passed through the mounting holes and then threadedly connected to the threaded holes, thereby firmly connecting the movable base plate 2 and the fixed base plate 3, ensuring that the cross-sectional area of the enclosed air guide hole 4 remains unchanged during the movement of the tow.

[0036] The fastener 22 is passed through the mounting hole and screwed into the threaded hole. The fastener 22 is screwed so that the head of the fastener 22 abuts against the open end face of the mounting hole facing away from the threaded hole, so that the movable base plate 2 and the fixed base plate 3 are locked and fixed. When the fastener 22 is screwed in the opposite direction, the movable base plate 2 and the fixed base plate 3 are loosened. The fastener is used to fix and loosen the movable base plate 2 and the fixed base plate 3. The structural design is simple and the operation is convenient.

[0037] Furthermore, the cross-section of the air guide holes is V-shaped, with the V-shaped opening facing in the opposite direction of the filaments' movement. The cross-section of the air guide holes is perpendicular to the thickness of the air guide plate. This increases the airflow's dispersion area and enhances the air guidance effect. Furthermore, the low-pressure airflow from the air guide holes gradually and evenly loosens the filaments, spreading them out from both sides to form a more uniform filament bundle.

[0038] Furthermore, the fixed base plate 3 includes a base plate body 31 and two connecting blocks 32 arranged on opposite sides of the base plate body 31 in a first direction. The base plate body 31 and the two connecting blocks 32 are connected to form a U-shaped fixed base plate 3, and the opening direction of the fixed base plate 3 is the same as the movement direction of the filament bundle.

[0039] The movable bottom plate 2 is slidably connected to the two connecting blocks 32 along the movement direction of the tow at both ends in the first direction. The movable bottom plate 2 blocks the opening of the fixed bottom plate 3, so that an air guide hole 4 is formed between the bottom plate body 31, the two connecting blocks 32 and the movable bottom plate 2.

[0040] By loosening the fasteners 22, the movable base plate 2 can slide relative to the two connecting blocks 32 to adjust the size of the air guide hole 4. After adjusting the position of the movable base plate 2 relative to the two connecting blocks 32 according to actual conditions, the fasteners 22 are tightened to lock the movable base plate 2 and the base plate body 31. In this way, the size of the air guide hole 4 can be precisely controlled, that is, the airflow and air volume can be precisely controlled.

[0041] Illustratively, the threaded holes are on the base plate body 31 .

[0042] Exemplarily, the fixed base plate 3 is an integrally formed structural member. In other words, the two connecting blocks 32 are integrally formed on the base plate body 31 , which simplifies the processing of the fixed base plate and reduces the processing cost. In addition, no additional connection is required, simplifying the structure of the fixed base plate 3 .

[0043] In other embodiments, the opening of the fixed base plate 3 may be oriented opposite to the moving direction of the tow.

[0044] Specifically, a convex rail 33 is provided on one of the movable bottom plate 2 and the connecting block 32, and a groove 21 is provided on the other. The convex rail 33 and the groove 21 slide together along the direction of movement of the tow, so that the movable bottom plate 2 and the fixed bottom plate 3 have a simple structural design, are easy to adjust and install, have a guiding function, have a better sliding effect, and are more precise in air volume control.

[0045] Exemplarily, the movable base plate 2 is provided with a groove 21 , and the connecting block 32 is provided with a protruding rail 33 .

[0046] Furthermore, one of the movable bottom plate 2 and the fixed bottom plate 3 is movably connected to a limiter, which abuts against the other one along the direction of movement of the tow. By adjusting the position of the limiter, the limit distance between the movable bottom plate 2 and the fixed bottom plate 3 can be changed, thereby changing the size of the air guide hole 4.

[0047] Exemplarily, the base plate body 31 is provided with an assembly hole passing through the movement direction of the wire bundle, and the limiting member is a limit screw 34, which is threadedly connected to the assembly hole and one end of the limit screw 34 passes through the assembly and abuts against the movable base plate 2 along the movement direction of the wire bundle.

[0048] By rotating and adjusting the distance that the limit screw 34 passes through the base plate body 31, when the movable base plate 2 abuts against the limit screw 34 during the sliding process of the movable base plate 2 relative to the fixed base plate 3, it indicates that the movable base plate 2 is assembled in place. The distance that the limit screw 34 passes through the base plate body 31 directly determines the ventilation area of the air guide hole 4. By precisely controlling the distance that the limit screw 34 passes through the base plate body 31, the ventilation area of the air guide hole 4 can be precisely controlled.

[0049] After the movable bottom plate 2 and the fixed bottom plate 3 are locked by the fastener 22, the distance between the movable bottom plate 2 and the fixed bottom plate 3 is not easy to change under the action of the movement of the filament bundle and the airflow, that is, the ventilation area of the air guide hole 4 remains unchanged during operation.

[0050] Exemplarily, two limiting screws 34 are provided, and the two limiting screws 34 are spaced apart along the first direction. When the movable bottom plate 2 abuts against the limiting screws 34 , the force is evenly applied, and the structure is simple and the operation is convenient.

[0051] Furthermore, the air guide holes 4 are arranged at an angle relative to the thickness of the air guide plate, with the outlet of the air guide holes 4 located downstream of the inlet of the air guide holes 4 in the direction of movement of the filaments. The airflow enters through the inlet of the air guide holes 4 and flows out through the outlet of the air guide holes 4 along the inclined path of the air guide holes 4. Under the guidance of the inner wall of the air guide holes 4, the airflow deviates from its original vertical flow direction and flows along the contour of the inner wall of the air guide holes 4. The airflow forms an acute angle with the direction of movement of the filaments, thereby improving the airflow's effect on loosening the filaments.

[0052] Furthermore, the air guide hole 4 has two air guide surfaces arranged opposite each other along the direction of movement of the filament bundle, one of which is arranged on the movable bottom plate 2 and the other on the fixed bottom plate 3. The air guide surfaces are arranged between the air outlet end surface and the air inlet end surface of the air guide hole 4. Along the direction of movement of the filament bundle, the downstream air guide surface is an outward convex arc surface or inclined plane, while the upstream air guide surface is an inward concave arc surface or inclined plane. This arrangement is used to guide the airflow and direct the airflow's movement path, so that the airflow blows the filament bundle more evenly.

[0053] For ease of description, the two wind guide surfaces are respectively referred to as a first wind guide surface 23 and a second wind guide surface 35 , wherein the first wind guide surface 23 is provided on the movable bottom plate 2 , and the second wind guide surface 35 is provided on the fixed floor 3 .

[0054] For example, the first air-guiding surface 23 is configured as an outwardly convex arc surface. The airflow flows along the contour of the outwardly convex arc surface of the movable bottom plate 2, so that the airflow direction is consistent with the direction of travel of the filament bundle, and the airflow is fan-shaped, which can evenly and effectively loosen the filament bundle. In other embodiments, the first air-guiding surface 23 can also be configured as an inclined plane.

[0055] For example, the second air guiding surface 35 is configured as an inclined plane. In other embodiments, the second air guiding surface 35 can also be configured as an inwardly concave arc surface.

[0056] Furthermore, along the movement direction of the filament bundle, of the two air guide surfaces, the first air guide surface 23 is smoothly connected to the air outlet end surface, so that the air flow is guided along the smooth connecting surface after passing through the outlet end, the air flow is dispersed, and the filament bundle is evenly loosened.

[0057] Continue as Figure 1-3 As shown, this embodiment also provides an air opener, which includes a cover plate 1 and an air guide plate. A filament channel 5 is formed between the cover plate 1 and the air guide plate. The filament channel 5 is arranged to pass through along the movement direction of the filament bundle, and the air guide hole 4 is connected to the filament channel 5.

[0058] The cover plate 1, the movable bottom plate 2, the bottom plate body 31 and the two connecting blocks 32 together form a tow channel 5. When the tow moves through the tow channel 5, the air flow enters the tow channel 5 through the air guide hole 4, which will loosen the tow, causing the tow to expand laterally and increase the gap between the fibers to ensure that the tow maintains a stable shape and position during subsequent processing.

[0059] Furthermore, one end of the cover plate 1 is rotatably connected to one end of the fixed base plate 3, and the other end is detachably connected to the other end of the fixed base plate 3. The cover plate 1 can be opened and closed at a certain angle relative to the fixed base plate 3, which facilitates manual insertion of the tow and adjustment of the ventilation area of the air guide hole 4.

[0060] Specifically, a mounting block is provided on the side of one of the connecting blocks 32 facing away from the other connecting block 32, and the cover plate 1 is rotatably connected to the mounting block through a connecting shaft 321 at one end in the first direction. Rotating the cover plate 1 can make the cover plate 1 fit and be fixed to the two connecting blocks 32, so that a filament channel 5 is formed between the cover plate 1 and the air guide plate.

[0061] Exemplarily, the mounting block and the adjacent connecting block 32 are connected by screws such as bolts, etc., which facilitates assembly and disassembly.

[0062] Furthermore, the fixed base plate 3 and the cover plate 1 are fixed by magnetic attraction, and the fixed base plate 3 and the cover plate 1 are connected by magnetic attraction, which makes opening and closing convenient.

[0063] The fixed base plate 3 is provided with a magnetic member such as a permanent magnet or an electromagnet, and the cover plate 1 is provided with a ferromagnetic structure. The cover plate 1 and the fixed base plate 3 are connected by the magnetic attraction between the magnetic member and the ferromagnetic structure.

[0064] In another embodiment, a magnetic attraction member such as a permanent magnet or an electromagnet may be provided on the cover plate 1 , and a ferromagnetic structural member may be provided on the fixed base plate 3 .

[0065] In another embodiment, both the fixed base plate 3 and the cover plate 1 may be provided with magnetic elements.

[0066] Obviously, the above-described embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention is to be implemented. A person skilled in the art would be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Air guide plate, used for air opener, characterized by: The air guide plate comprises: A fixed base plate (3) and a movable base plate (2), an air guide hole (4) is formed between the fixed base plate (3) and the movable base plate (2), the fixed base plate (3) and the movable base plate (2) are slidably connected, and the movable base plate (2) can move relative to the fixed base plate (3) along the moving direction of the filament bundle so that the cross-sectional area of the air guide hole (4) is adjustable.

2. The air deflector according to claim 1, characterized in that: One of the movable base plate (2) and the fixed base plate (3) is provided with a mounting hole, and the other is provided with a threaded hole, and the mounting hole and the threaded hole are distributed opposite each other in a one-to-one correspondence along the moving direction of the filament bundle; The wind deflector further comprises a fastener (22), wherein the fastener (22) passes through the mounting hole along the moving direction of the filament bundle and is then threadedly connected to the threaded hole.

3. The wind deflector according to claim 2, characterized in that: The fixed base plate (3) comprises a base plate body (31) and two connecting blocks (32) provided on opposite sides of the base plate body (31) in a first direction, the base plate body (31) and the two connecting blocks (32) are connected to form a U-shaped fixed base plate (3), and the opening of the fixed base plate (3) faces the same direction as or opposite to the moving direction of the filament bundle; The movable bottom plate (2) is slidably connected to the two connecting blocks (32) at both ends in the first direction along the moving direction of the tow, and the movable bottom plate (2) blocks the opening of the fixed bottom plate (3), so that the air guide hole (4) is formed between the bottom plate body (31), the two connecting blocks (32) and the movable bottom plate (2); The first direction, the thickness direction of the air guide plate and the moving direction of the filament bundle are perpendicular to each other.

4. The air deflector according to claim 1, wherein: One of the movable base plate (2) and the fixed base plate (3) is movably connected to a limiting member, and the limiting member abuts against the other along the moving direction of the filament bundle.

5. The air deflector according to claim 1, characterized in that: The air guide hole (4) is arranged obliquely relative to the thickness direction of the air guide plate, and along the moving direction of the filament bundle, the outlet end of the air guide hole (4) is located downstream of the inlet end of the air guide hole (4).

6. The wind deflector according to claim 5, characterized in that: The air guide hole (4) has two air guide surfaces arranged opposite to each other along the moving direction of the filament bundle, wherein one of the air guide surfaces is arranged on the movable bottom plate (2) and the other air guide surface is arranged on the fixed bottom plate (3); The air guide surface is arranged between the air outlet end surface of the air guide hole (4) and the air inlet end surface of the air guide hole (4), and the air guide surface is along the movement direction of the filament bundle. The air guide surface located downstream is an outward convex arc surface or an inclined plane, and the air guide surface located upstream is an inward concave arc surface or an inclined plane.

7. The wind deflector according to claim 6, characterized in that: Along the moving direction of the filament bundle, of the two air guide surfaces, the air guide surface located downstream is smoothly connected to the air outlet end surface.

8. Air opener, characterized in that, It comprises a cover plate (1) and an air guide plate according to any one of claims 1 to 7, a filament channel (5) is formed between the cover plate (1) and the air guide plate, the filament channel (5) is arranged to pass through along the movement direction of the filament bundle, and the air guide hole (4) is connected to the filament channel (5).

9. The air opener according to claim 8, characterized in that One end of the cover plate (1) is rotatably connected to one end of the fixed base plate (3), and the other end is detachably connected to the other end of the fixed base plate (3).

10. The air opener according to claim 9, characterized in that: The fixed base plate (3) and the cover plate (1) are fixed by magnetic attraction.

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