Shredded tobacco screening device
By setting staggered, interwoven long strip meshes and feeding channels in the screening device, the problems of falling and inconvenient collection of thin tobacco shreds during screening are solved, achieving efficient screening and collection and improving production stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA TOBACCO SICHUAN IND CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-26
AI Technical Summary
Thin tobacco flakes are not easy to fall through the mesh during the screening process, and the collection after screening is not convenient, which leads to equipment blockage and production stability problems.
Design a thin tobacco shred screening device. The screen mesh has long strip-shaped holes that are staggered and interwoven. The bottom wall of the frame is provided with a feeding channel. A vibration mechanism drives the screen mesh to vibrate, so that the thin tobacco shreds fall through the mesh holes into the receiving bucket, shortening the conveying path.
It effectively prevents the shredded tobacco from clumping, improves screening efficiency, simplifies the collection process, and enhances production stability.
Smart Images
Figure CN224405689U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of cigarette processing equipment technology, and in particular to a thin sheet tobacco shredding device. Background Technology
[0002] Heated cigarettes are a new type of electronic cigarette. They use a heating device to heat the cigarette to a certain temperature without igniting the tobacco. The tobacco is heated enough to produce smoke, resulting in a taste closer to that of a real cigarette. Heated cigarettes contain thin sheets of tobacco. To enhance the flavor, a large amount of flavorings and fragrances are usually sprayed onto these sheets. This results in a high sugar content in the tobacco, making it prone to sticking together and forming clumps. These clumps can cause equipment blockage during the cigarette rolling process, leading to machine downtime and affecting production stability.
[0003] To reduce the sticking of thin tobacco flakes, a screening device is typically used to screen them. The screening device usually includes a screen and a vibrating trough. The screen is mounted on the trough via a vibration mechanism, which drives the screen in a regular reciprocating motion. This vibration causes the tobacco flakes on the screen to vibrate, loosening the clumps. The loosened tobacco flakes fall through the mesh of the screen into the vibrating trough, and are then transported from the end of the trough to downstream collection equipment.
[0004] For ease of processing, the mesh openings on the screen are usually arranged in a regular pattern, while the loosened tobacco flakes are oriented randomly, making it difficult for the loosened tobacco flakes to fall out of the mesh. Furthermore, since the sieved tobacco flakes are sent from the end of the vibrating trough to the downstream collection equipment, the tobacco flakes have a long conveying path, making collection inconvenient. Utility Model Content
[0005] Therefore, it is necessary to provide a thin tobacco shredding device to solve the problems that thin tobacco shredding is not easy to fall out of the mesh and that the collection of thin tobacco shredding after sieving is not convenient.
[0006] A thin tobacco shred screening device includes a frame, a screen, and a vibration mechanism. The screen has multiple mesh openings, each extending in an elongated shape, with different extending directions and spatially staggered and interwoven. The screen is fixedly installed above the frame, and a feeding channel is provided on the bottom wall of the frame. The bottom of the feeding channel is used to place a receiving bucket. The vibration mechanism is connected to the frame and is used to drive the frame and screen to vibrate. As the frame and screen vibrate, some clumps of thin tobacco shreds are screened by the screen and fall onto the frame through the multiple mesh openings, and then into the receiving bucket through the feeding channel.
[0007] In one embodiment, the screen has a plurality of first screening areas and a plurality of second screening areas, which are staggered along the length x of the screen; the first screening areas have a plurality of parallel first elongated holes, and the second screening areas have a plurality of parallel second elongated holes, which are arranged in a crisscross pattern in space.
[0008] In one embodiment, the extension lengths of the plurality of first elongated holes are not the same; and / or, the extension lengths of the plurality of second elongated holes are not the same.
[0009] In one embodiment, the first elongated hole extends along the width direction y of the screen, and the second elongated hole extends along the length direction x of the screen.
[0010] In one embodiment, each first screening region includes a plurality of sub-regions arranged along the width direction y of the screen, and each sub-region is provided with a plurality of first elongated holes extending along the width direction y of the screen.
[0011] In one embodiment, along the width direction y of the screen, the length of the second elongated hole at both ends of the second screening area is less than the length of the second elongated hole at both ends; or, along the width direction y of the screen, the length of the second elongated hole at both ends of the second screening area is greater than the length of the second elongated hole at both ends.
[0012] In one embodiment, the screen has a first end and a second end that are arranged opposite to each other along its own length direction x. The first end is used to receive thin tobacco sheets conveyed by the upstream device, and the second end is used to convey thin tobacco sheets to the downstream device. The feeding channel is arranged corresponding to the second end, and the cross-sectional width of the feeding channel tends to increase along the direction from the first end to the second end.
[0013] In one embodiment, the feeding channel includes a plurality of spaced feeding holes arranged in a triangular pattern.
[0014] In one embodiment, the sheet tobacco sieving device includes a support, a frame movably connected to the support, and a vibration mechanism mounted on the support and driven at a second end.
[0015] In one embodiment, the thin tobacco shredding device further includes a plurality of spring plates, each spring plate having its two ends connected to a frame and a support respectively, and the plurality of spring plates being spaced apart along the length of the frame.
[0016] Compared with existing technologies, the thin tobacco shredding device provided in this application, by setting multiple mesh openings with different extension directions and spatially staggered interlacing distribution, can match the loosened, randomly distributed thin tobacco shredding, thus facilitating the falling of thin tobacco shredding with various distribution directions through the mesh openings onto the frame. Furthermore, compared to related structures where thin tobacco shredding is fed from the end of the vibrating trough to the downstream collection device, this application, by opening a feeding channel in the bottom wall of the frame, with the bottom of the feeding channel used to place a receiving bucket, allows the thin tobacco shredding falling onto the frame to directly enter the downstream receiving bucket through the feeding channel on the frame, thereby shortening the conveying path of the thin tobacco shredding and facilitating its collection. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 This is an assembly diagram of the thin tobacco shredding device and receiving hopper provided in this application;
[0019] Figure 2 Axonometric drawing of the frame provided for this application;
[0020] Figure 3 A side view of the frame provided for this application;
[0021] Figure 4 A partial schematic diagram of the screen provided in this application.
[0022] Reference numerals: 100, Thin tobacco shred screening device; 10, Frame; 11, First end; 12, Second end; 13, Feeding channel; 131, Feeding hole; 14, Main frame; 15, Fixing frame; 20, Screen; 201, Mesh opening; 21, First screening area; 211, First elongated hole; 213, Sub-area; 22, Second screening area; 221, Second elongated hole; 30, Vibration mechanism; 31, Motor; 32, Eccentric wheel; 33, Connecting rod; 40, Support; 60, Spring plate; 200, Receiving bucket. Detailed Implementation
[0023] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.
[0024] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0026] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is 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 can mean that the first feature is 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.
[0027] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.
[0028] Please see Figures 1 to 4This application provides a thin tobacco shred screening device 100, which includes a frame 10, a screen 20, and a vibration mechanism 30. The screen 20 has multiple mesh holes 201, each of which extends in an elongated shape and has different extending directions, and is spatially staggered and interwoven. The screen 20 is fixedly installed above the frame 10, and a feeding channel 13 is provided on the bottom wall of the frame 10. The bottom of the feeding channel 13 is used to place a receiving bucket 200. The vibration mechanism 30 is connected to the frame 10 and is used to drive the frame 10 and the screen 20 to vibrate. As the frame 10 and the screen 20 vibrate, some of the clumps of thin tobacco shreds are screened by the screen 20 and fall into the frame 10 through the multiple mesh holes 201, and then fall into the receiving bucket 200 through the feeding channel 13.
[0029] It should be noted that the spatially staggered and interwoven distribution of multiple mesh openings 201 refers to the overlapping distribution of the extension directions of the multiple mesh openings 201. By setting the extension directions of multiple mesh openings 201 to be different and spatially staggered and interwoven, it can match the loosened and randomly distributed thin tobacco shreds, thus facilitating the falling of thin tobacco shreds with various distribution directions onto the frame 10 through the mesh openings 201. Furthermore, compared to related structures where thin tobacco shreds are fed from the end of the vibrating trough to the downstream collection device, this application, by opening a feeding channel 13 on the bottom wall of the frame 10, and with the bottom of the feeding channel 13 used to place the receiving bucket 200, allows the thin tobacco shreds falling onto the frame 10 to directly enter the downstream receiving bucket 200 through the feeding channel 13 on the frame 10, thereby shortening the conveying path of the thin tobacco shreds and facilitating their collection.
[0030] Optionally, in one embodiment, the screen 20 is made of a stainless steel plate with a thickness of 1 mm, and the width of the mesh 201 is configured to be 3 mm.
[0031] In one embodiment, such as Figure 4As shown, the screen 20 has multiple first screening areas 21 and multiple second screening areas 22, which are staggered along the length x-direction of the screen 20. The first screening areas 21 have multiple parallel first elongated holes 211, and the second screening areas 22 have multiple parallel second elongated holes 221. The first elongated holes 211 and second elongated holes 221 are arranged in a crisscross pattern in space. This ensures that the tobacco flakes falling onto the frame 10 from the same first screening area 21 follow the same direction, thus preventing them from clumping together again. It should be noted that the crisscrossing pattern in space refers to the intersection of the extending directions of the first elongated holes 211 and the second elongated holes 221. Thus, the tobacco flakes falling onto the frame 10 after passing through the same second screening area 22 are in the same direction, which helps to prevent the tobacco flakes falling onto the frame 10 after passing through the same second screening area 22 from clumping together again. Furthermore, the first screening area 21 and the second screening area 22 are arranged alternately along the length x of the screen 20, and the first elongated hole 211 and the second elongated hole 221 are arranged crisscrossingly in space, which is conducive to tobacco flakes from different directions falling onto the frame 10 through the first elongated hole 211 and the second elongated hole 221.
[0032] Furthermore, in one embodiment, the extension lengths of the plurality of first elongated holes 211 are different, and the extension lengths of the plurality of second elongated holes 221 are also different. This facilitates the falling of thin tobacco sheets of different lengths from the screen 20 onto the frame 10.
[0033] Optionally, in one embodiment, the first elongated hole 211 extends along the width direction y of the screen 20, and the second elongated hole 221 extends along the length direction x of the screen 20. Of course, in another embodiment, the first elongated hole 211 may extend along the length direction x of the screen 20, and the second elongated hole 221 may extend along the width direction y of the screen 20. The following description uses the example of the first elongated hole 211 extending along the width direction y of the screen 20 and the second elongated hole 221 extending along the length direction x of the screen 20 to illustrate the specific structure of the mesh openings 201 of the screen 20.
[0034] In one embodiment, each first screening region 21 includes a plurality of sub-regions 213 arranged along the width direction y of the screen 20, and each sub-region 213 is provided with a plurality of first elongated holes 211 extending along the width direction y of the screen 20. In this way, the first screening region 21 can be further divided, thereby facilitating the opening of a plurality of first elongated holes 211 in each sub-region 213 according to actual needs.
[0035] Optionally, in each sub-region 213, the extension length of the multiple first elongated holes 211 is the same, and the extension length of the first elongated holes 211 in adjacent sub-regions 213 is different. In this way, while meeting the screening requirements of thin tobacco sheets of different lengths, the structure of the first screening region 21 is relatively simple and easy to process.
[0036] In one embodiment, along the width direction y of the screen 20, the length of the second elongated holes 221 at both ends of the second screening region 22 is less than the length of the second elongated holes 221 at both ends; or, along the width direction y of the screen 20, the length of the second elongated holes 221 at both ends of the second screening region 22 is greater than the length of the second elongated holes 221 at both ends. Thus, without further partitioning the second screening region 22, second elongated holes 221 of different lengths can be processed on the second screening region 22.
[0037] For example, in one embodiment, along the length direction x of the screen 20, the length of the second elongated hole 221 at both ends of the second screening area 22 located to the left of the same first screening area 21 is less than the length of the second elongated hole 221 at both ends; the length of the second elongated hole 221 at both ends of the second screening area 22 located to the right of the same first screening area 21 is greater than the length of the second elongated hole 221 at both ends.
[0038] In one embodiment, the screen 20 has a first end 11 and a second end 12 arranged opposite to each other along its own length direction x. The first end 11 is used to receive thin tobacco sheets conveyed from the upstream device, and the second end 12 is used to convey thin tobacco sheets to the downstream device. The feeding channel 13 is arranged corresponding to the second end 12, and the cross-sectional width of the feeding channel 13 tends to increase along the direction from the first end 11 to the second end 12. It should be noted that the cross-section of the feeding channel 13 refers to the cross-section of the feeding channel 13 in the width direction of the screen 20. Since the thin tobacco sheets are conveyed from the first end 11 to the second end 12 on the screen 20, and the feeding channel 13 is arranged corresponding to the second end 12, the closer to the second end 12, the easier it is for thin tobacco sheets to accumulate on the frame 10. By setting the cross-sectional width of the feeding channel 13 to increase along the direction from the first end 11 to the second end 12, the accumulation of tobacco sheets near the second end 12 can be avoided when the area of the feeding channel 13 is the same.
[0039] Alternatively, in one embodiment, as Figures 1 to 3 As shown, the feeding channel 13 includes a plurality of feeding holes 131 spaced apart, which are arranged in a triangular pattern. Specifically, the plurality of feeding holes 131 are configured to extend in an elongated shape, and the extension lengths of the plurality of feeding holes 131 are different.
[0040] In one embodiment, the frame 10 includes a main frame 14 and a fixing frame 15. The feeding channel 13 is opened at the bottom of the main frame 14, and the fixing frame 15 is used to cooperate with the main frame 14 to clamp the screen 20.
[0041] The thin tobacco shredding device includes a support 40, a frame 10 movably connected to the support 40, and a vibration mechanism 30 mounted on the support 40 and drivenly connected to the second end 12. The support 40 is used to support the frame 10 and the vibration mechanism 30.
[0042] Specifically, the vibration mechanism 30 includes a motor 31, an eccentric wheel 32, and a connecting rod 33. The eccentric wheel 32 is connected to the output shaft of the motor 31, and one end of the connecting rod 33 is connected to the eccentric wheel 32, while the other end is connected to the frame 10. The motor 31 drives the eccentric wheel 32 to rotate, and through the connecting rod 33, it drives the frame 10 to swing regularly, thereby causing the frame 10 and the screen 20 to vibrate.
[0043] In one embodiment, the thin tobacco shred screening device further includes a plurality of spring plates 60, each spring plate 60 having its two ends connected to the frame 10 and the support 40 respectively, and the plurality of spring plates 60 being spaced apart along the length of the frame 10. The spring plates 60 may be made of epoxy resin board, which is highly elastic, durable, and not easily broken.
[0044] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0045] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.
Claims
1. A thin-sheet tobacco shredding device, characterized in that, The thin tobacco shredding device (100) includes a frame (10), a screen (20) and a vibration mechanism (30). The screen (20) has multiple mesh holes (201), each of which extends in a long strip shape. The multiple mesh holes (201) extend in different directions and are staggered and interwoven in space. The screen (20) is fixedly installed above the frame (10), and a feeding channel (13) is provided on the bottom wall of the frame (10). The bottom of the feeding channel (13) is used to place the receiving bucket (200). The vibration mechanism (30) is connected to the frame (10) and is used to drive the frame (10) and the screen (20) to vibrate. As the frame (10) and the screen (20) vibrate, some of the clumps of thin tobacco shreds are sieved by the screen (20) and fall into the frame (10) through multiple mesh holes (201), and then into the receiving bucket (200) through the feeding channel (13).
2. The thin-sheet tobacco sieving device according to claim 1, characterized in that, The screen (20) has a plurality of first screening areas (21) and a plurality of second screening areas (22), the first screening areas (21) and the second screening areas (22) being staggered along the length x of the screen (20); The first screening area (21) has a plurality of parallel first elongated holes (211), and the second screening area (22) has a plurality of parallel second elongated holes (221). The first elongated holes (211) and the second elongated holes (221) are arranged in a crisscross pattern in space.
3. The thin-sheet tobacco shredding device according to claim 2, characterized in that, The extension lengths of the plurality of first elongated holes (211) are not the same; and / or, the extension lengths of the plurality of second elongated holes (221) are not the same.
4. The thin-sheet tobacco shredding device according to claim 2, characterized in that, The first elongated hole (211) extends along the width direction y of the screen (20), and the second elongated hole (221) extends along the length direction x of the screen (20).
5. The thin-sheet tobacco shredding device according to claim 4, characterized in that, Each first screening area (21) includes a plurality of sub-areas (213) arranged along the width direction y of the screen (20), and each sub-area (213) is provided with a plurality of first elongated holes (211) extending along the width direction y of the screen (20).
6. The thin-sheet tobacco shredding device according to claim 4, characterized in that, Along the width direction y of the screen (20), the length of the second elongated hole (221) at both ends of the second screening area (22) is less than the length of the second elongated hole (221) at both ends; Alternatively, along the width direction y of the screen (20), the length of the second elongated hole (221) at both ends of the second screening area (22) is greater than the length of the second elongated hole (221) at both ends.
7. The thin-sheet tobacco shredding device according to claim 1, characterized in that, The screen (20) has a first end (11) and a second end (12) arranged opposite to each other along its own length direction x. The first end (11) is used to receive the thin tobacco shreds conveyed by the upstream device, and the second end (12) is used to convey the thin tobacco shreds to the downstream device. The feeding channel (13) is provided corresponding to the second end (12), and the cross-sectional width of the feeding channel (13) tends to increase along the direction from the first end (11) to the second end (12).
8. The thin-sheet tobacco shredding device according to claim 7, characterized in that, The feeding channel (13) includes a plurality of feeding holes (131) spaced apart, and the plurality of feeding holes (131) are distributed in a triangular pattern.
9. The thin-sheet tobacco shredding device according to claim 7, characterized in that, The thin tobacco shredding device includes a support (40), a frame (10) is movably connected to the support (40), and a vibration mechanism (30) is installed on the support (40) and is connected to the second end (12) in a transmission manner.
10. The thin-sheet tobacco shredding device according to claim 9, characterized in that, The thin tobacco shredding device also includes a plurality of spring plates (60), each of which is connected at both ends to the frame (10) and the support (40), and the plurality of spring plates (60) are spaced apart along the length of the frame (10).