Graded screening device for filter stick particles

By designing the filter rod particle grading screening device for columns, silos and grading channels, the rapid grading screening of filter rod particles is achieved by using gravity and gradually increasing width of the blanking trough, solving the problems of high equipment costs and low manual screening efficiency in the prior art, and achieving efficient and reliable grading screening effect.

CN223056132UActive Publication Date: 2025-07-04HUBEI CHINA TOBACCO INDUSTRY CO LTD +1
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Patent Information

Application Number
CN202422122430.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-30
Publication Date
2025-07-04
Estimated Expiration
2034-08-30

AI Technical Summary

Technical Problem

In the prior art, the filter rod particle grading screening equipment has high cost, high failure rate, low manual screening efficiency and long time, making it difficult to achieve fast and reliable grading screening.

Method used

A grading screening device including columns, silos, grading channels and blanking troughs is designed, and the particles of the filter rod slide down along the inclined guide surface using gravity, and the particle size grading screening is achieved through the gradually increasing width of the blanking trough, simplifying the structure and improving efficiency.

Benefits of technology

It realizes rapid grading and screening of filter rod particles with simple structure and convenient operation, reduces equipment costs and labor intensity, and improves screening efficiency and quality.

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Abstract

The utility model discloses a grading screening device for filter stick particles. The grading screening device comprises a stand column; the stock bin is arranged at the top of the stand column and used for receiving filter stick particles, the stock bin is provided with a guide face inclining downwards, and a discharging opening is formed in the lowest end of the guide face; the grading channel is arranged below the blanking port, is used for receiving filter stick particles and is downwards inclined in the direction far away from the stock bin; the blanking groove is formed in the bottom of the grading channel, and the width of the blanking groove is gradually increased in the extending direction of the grading channel. Compared with the prior art, the classified screening device for the filter stick particles is simple in structure, convenient to operate and capable of rapidly achieving classified screening of the filter stick particles.
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Description

Technical Field

[0001] The present application relates to the technical field of cigarette filter rod particles, and more specifically, to a classification and screening device for filter rod particles. Background Art

[0002] Filter rod particles are arranged in cigarette filter rods. Through the large specific surface area and strong adsorption effect of the filter rod particles, the adsorption capacity of the cigarette filter rods for harmful substances in the smoke is enhanced, so as to achieve the purpose of reducing the harm of the smoke to the human body.

[0003] Particle classification and screening is the last process of filter rod particle sorting. Classifying and screening according to the size of the filter rod particles is beneficial to enriching the product variety. After the filter rod particles are sized, the sensory experience of consumers will also be improved, and different value positions of the cigarette filter rods can be determined according to the size of the filter rod particles.

[0004] At present, the classification and screening of filter rod particles are mainly carried out by two methods: optical equipment screening and manual screening. Optical equipment mainly conducts rapid detection and screening by taking pictures with a camera. However, the optical equipment is relatively precise, with high input costs, high failure rates during the screening process, and high maintenance costs; manual screening mainly involves manually classifying the filter rod particles. However, the number of filter rod particles is large and the volume is small, resulting in a large workload for manual classification and screening, cumbersome operation, long time consumption, and unreliable screening quality.

[0005] Therefore, there is an urgent need for a classification and screening device for filter rod particles, which has a simple structure, is easy to operate, and can quickly achieve the classification and screening of filter rod particles. Utility Model Content

[0006] To solve the above technical problems, the present application provides a classification and screening device for filter rod particles, which has a simple structure, is easy to operate, and can quickly achieve the classification and screening of filter rod particles.

[0007] The technical solution provided by the present application is as follows:

[0008] A classification and screening device for filter rod particles, comprising:

[0009] A column;

[0010] A feed bin arranged at the top of the column for receiving filter rod particles. The feed bin has a downwardly inclined guiding surface, and a material dropping port is provided at the lowest end of the guiding surface;

[0011] A classification channel arranged below the material dropping port for receiving filter rod particles. The classification channel slopes downward in a direction away from the feed bin;

[0012] A material dropping groove arranged at the bottom of the classification channel. Along the extending direction of the classification channel, the width of the material dropping groove gradually increases.

[0013] Preferably, the silo is specifically a conical structure, and the silo slopes downward in a direction away from the central axis.

[0014] Preferably, it further includes:

[0015] A material baffle disposed outside the guiding surface.

[0016] Preferably, the guiding surface includes a first inclined surface and a second inclined surface;

[0017] Wherein, the second inclined surface is disposed outside the first inclined surface, the inclination angle of the second inclined surface is less than the inclination angle of the first inclined surface, and the blanking port is disposed at one end of the second inclined surface away from the first inclined surface.

[0018] Preferably, at least two blanking ports are provided, and they are spaced apart on one side of the second inclined surface away from the first inclined surface, and the grading channels are provided in one-to-one correspondence with the blanking ports.

[0019] Preferably, it further includes:

[0020] A diversion channel disposed between the blanking port and the grading channel, and the diversion channel is used to receive the filter rod particles falling from the blanking port and convey the filter rod particles into the grading channel.

[0021] Preferably, it further includes:

[0022] A bracket disposed between the upright column and the grading channel, the brackets are provided in one-to-one correspondence with the grading channels, and both ends of the bracket are fixedly connected to the upright column and the grading channel respectively.

[0023] Preferably, it further includes:

[0024] A collection box disposed below the grading channel for collecting filter rod particles.

[0025] Preferably, it further includes:

[0026] A vibrator disposed on the silo.

[0027] Preferably, it further includes:

[0028] A mounting seat disposed at one end of the upright column away from the silo.

[0029] The grading and screening device for filter rod particles provided by the present utility model, first of all, due to the setting of a column, a bin and a grading channel. Among them, the bin is arranged at the top of the column, and the bin is used to receive filter rod particles. The bin has a guiding surface inclined downward. Under the action of gravity, the filter rod particles slide along the extending direction of the guiding surface. There is a material dropping port arranged on the guiding surface, and the filter rod particles can drop from the material dropping port. The grading channel is arranged below the material dropping port, and the grading channel is used to receive the filter rod particles dropping from the material dropping port. The grading channel is inclined downward in a direction away from the bin so that the filter rod particles can slide along the grading channel. A material dropping groove is arranged at the bottom of the grading channel, and the material dropping groove extends along the extending direction of the grading channel, and the width of the material dropping groove gradually increases. When the filter rod particles slide in the grading channel, if the width of the particle size of the filter rod particles is greater than the width of the material dropping groove, the filter rod particles do not drop from the material dropping groove but continue to slide downward along the grading channel. If the filter rod particles move to a place with a larger groove width, the filter rod particles drop from the material dropping groove. The grading and screening device for filter rod particles provided by the embodiment of the present utility model grades and screens the particle size of the filter rod particles by gradually increasing the width of the material dropping groove along the extending direction of the grading channel. By arranging a downward guiding surface on the hopper and inclining the grading channel downward, the filter rod particles can flow under the action of gravity without setting other structures, which is more convenient and has a higher screening efficiency. Thus, compared with the prior art, the grading and screening device for filter rod particles in the embodiment of the present utility model has a simple structure, is easy to operate, and can quickly realize the grading and screening of filter rod particles. Brief Description of the Drawings

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0031] Figure 1 It is a schematic structural diagram of a grading and screening device for filter rod particles provided by an embodiment of the present utility model;

[0032] Figure 2 It is a schematic structural diagram of a material dropping groove provided by an embodiment of the present utility model.

[0033] Reference numerals: 1, column; 2, bin; 3, material dropping port; 4, grading channel; 5, material dropping groove; 6, diversion channel; 7, support; 8, mounting seat; 9, material baffle; 21, first inclined surface; 22, second inclined surface. Detailed Embodiments

[0034] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0035] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly disposed on the other element; when an element is referred to as "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to this application.

[0037] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of this application, the meaning of "a plurality of" and "several" is two or more, unless otherwise specifically defined.

[0038] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions under which this application can be implemented. Therefore, they do not have a substantial technical meaning. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in this application.

[0039] The embodiments of the present utility model are written in a progressive manner.

[0040] Such as Figure 1 and Figure 2As shown in the figure, an embodiment of the present utility model provides a grading and screening device for filter rod particles, including: a column 1; a bin 2 provided at the top of the column 1 for receiving filter rod particles, the bin 2 having a downwardly inclined guiding surface, and a material dropping port 3 is provided on the guiding surface; a grading channel 4 provided below the material dropping port 3 for receiving filter rod particles, the grading channel 4 being inclined downward in a direction away from the bin 2; a material dropping trough 5 provided at the bottom of the grading channel 4, and along the extending direction of the grading channel 4, the width of the material dropping trough 5 gradually increases.

[0041] Currently, the grading and screening of filter rod particles mainly adopt two methods: optical equipment screening and manual screening. Optical equipment mainly conducts rapid detection and screening by taking pictures with a camera. However, optical equipment is relatively precise, with high investment costs, high failure rates during the screening process, and high maintenance costs; manual screening mainly involves manually grading filter rod particles. However, the large quantity and small volume of filter rod particles result in a large workload for manual grading and screening, cumbersome operation, long time consumption, and unreliable screening quality.

[0042] For the grading and screening device for filter rod particles provided by the present utility model, firstly, due to the provision of the column 1, the bin 2, and the grading channel 4. Among them, the bin 2 is provided at the top of the column 1, and the bin 2 is used to receive filter rod particles. The bin 2 has a downwardly inclined guiding surface. Under the action of gravity, the filter rod particles slide along the extending direction of the guiding surface. A material dropping port 3 is provided on the guiding surface, and the filter rod particles can drop from the material dropping port 3. The grading channel 4 is provided below the material dropping port 3, and the grading channel 4 is used to receive the filter rod particles dropped from the material dropping port 3. The grading channel 4 is inclined downward in a direction away from the bin 2 so that the filter rod particles can slide along the grading channel 4. A material dropping trough 5 is provided at the bottom of the grading channel 4, and the material dropping trough 5 extends along the extending direction of the grading channel 4, and the width of the material dropping trough 5 gradually increases. When the filter rod particles slide in the grading channel 4, if the width of the particle size of the filter rod particles is greater than the width of the material dropping trough 5, the filter rod particles do not drop from the material dropping trough 5 but continue to slide downward along the grading channel 4. If the filter rod particles move to a wider trough width, the filter rod particles drop from the material dropping trough 5. For the grading and screening device for filter rod particles provided by the embodiment of the present utility model, by gradually increasing the width of the material dropping trough 5 along the extending direction of the grading channel 4, the particle size of the filter rod particles is graded and screened. By providing a downward guiding surface on the hopper and inclining the grading channel 4 downward, the filter rod particles can flow under the action of gravity without the need to set other structures, which is more convenient and has a higher screening efficiency. Thus, it can be seen that compared with the prior art, the grading and screening device for filter rod particles in the embodiment of the present utility model has a simple structure, convenient operation, and can quickly realize the grading and screening of filter rod particles.

[0043] In the above structure, the blanking port 3 is used for the filter rod particles to fall from the guiding surface onto the grading channel 4 for grading and screening. As a preferred implementation, the blanking port 3 in the embodiment of the present utility model is arranged at the lowest end of the guiding surface. In this way, all the filter rod particles can fall into the blanking port 3 for subsequent grading and screening work.

[0044] In the structure, the guiding surface in the embodiment of the present utility model is used to receive the filter rod particles, and by using its own gravity, the filter rod particles move in the direction of the blanking port 3. The structure of the bin 2 includes various implementation manners. As the first implementation manner, the guiding surface can also be a surface that slopes downward toward the outside. Here, the surface can be any one of an inclined surface, a circular surface, or a curved surface.

[0045] As a more specific implementation manner, the bin 2 in the embodiment of the present utility model has a conical guiding surface. In the direction toward the blanking port 3, the cross-sectional area of the bin 2 gradually decreases. However, in this implementation manner, the number of blanking ports 3 is limited, and the efficiency of grading and screening the filter rod particles is not high.

[0046] As the second implementation manner, the guiding surface can also be any one of an inclined surface, a circular surface, or a curved surface that slopes downward toward the outside.

[0047] As a more specific implementation manner, the bin 2 in the embodiment of the present utility model is specifically a conical structure. In the direction away from the central axis of the bin 2, the bin 2 slopes downward. In this way, the filter rod particles are transported onto the guiding surface of the bin 2, and under the action of gravity, the filter rod particles flow along the guiding surface to the outer side of the bin 2.

[0048] Furthermore, in order to prevent the filter rod particles from falling off the bin 2, as a preferred implementation manner, the grading and screening device for the filter rod particles in the embodiment of the present utility model further includes a material baffle 9. The material baffle 9 is arranged outside the guiding surface to prevent the filter rod particles from falling off the bin 2.

[0049] Furthermore, as a specific implementation manner, the guiding surface in the embodiment of the present utility model includes a first inclined surface 21 and a second inclined surface 22. Among them, the second inclined surface 22 is arranged outside the first inclined surface 21, and the inclination angle of the second inclined surface 22 is smaller than that of the first inclined surface 21. The blanking port 3 is arranged at one end of the second inclined surface 22 away from the first inclined surface 21. By setting different inclination angles for the first inclined surface 21 and the second inclined surface 22, the phenomenon of filter rod particle accumulation is avoided.

[0050] As a specific implementation manner, the first inclined surface 21 and the second inclined surface 22 in the embodiment of the present utility model are specifically conical surfaces.

[0051] Furthermore, in order to improve the screening efficiency, as one of the implementation manners, there are at least two blanking openings 3 in the embodiment of the present utility model. The blanking openings 3 are arranged at intervals on the side of the second inclined surface 22 away from the first inclined surface 21, and the grading channels 4 are arranged in one-to-one correspondence with the blanking openings 3.

[0052] In the above structure, in order to make the material particles

[0053] In the above structure, as one of the preferred implementation manners, the blanking openings 3 in the embodiment of the present utility model are at the same height, and the filter rod particles in the same particle size range are more easily collected together.

[0054] Furthermore, in order to avoid the waste of filter rod particles caused by the filter rod particles at the blanking opening 3 not being received by the grading channel 4, as one of the implementation manners, the grading and screening device for filter rod particles in the embodiment of the present utility model further includes a diversion channel 6. The diversion channel 6 is arranged between the blanking opening 3 and the grading channel 4. The diversion channel 6 is used to receive the filter rod particles falling from the blanking opening and convey the filter rod particles into the grading channel 4, avoiding the risk of directly falling to the ground from the blanking opening 3.

[0055] In the above structure, as a specific implementation manner, the diversion channel 6 in the embodiment of the present utility model is specifically a diversion pipe.

[0056] In the above structure, as one of the specific implementation manners, the grading and screening device for filter rod particles in the embodiment of the present utility model further includes a bracket 7. The bracket 7 is used to support the grading channel 4. The bracket 7 is arranged in one-to-one correspondence with the grading channel 4, and both ends of the bracket 7 are respectively connected to the grading channel 4 and the column 1.

[0057] Furthermore, as one of the implementation manners, the connection between the bracket 7 and the column 1 and the connection between the bracket 7 and the grading channel 4 in the embodiment of the present utility model are welded.

[0058] In the above structure, the grading channel 4 is used to receive the filter rod particles and perform grading and screening on the filter rod particles through the blanking groove 5 at the bottom. As the first specific implementation manner, the grading channel 4 in the embodiment of the present utility model is specifically a pipe fitting with a blanking groove 5 arranged at the bottom, wherein the cross-sectional shape of the pipe fitting includes but is not limited to a circular shape and a polygonal structure. Furthermore, the pipe fitting in the embodiment of the present utility model is an integrally formed structure.

[0059] Further, as one of the implementation manners, the grading channel 4 in the embodiment of the present utility model includes a first guiding member and a second guiding member, wherein a blanking chute 5 is formed between the first guiding member and the second guiding member. The bracket 7 includes a first support rod and a second support rod. Two ends of the first support rod are respectively connected to the column 1 and the first guiding member, and two ends of the second support rod are respectively connected to the column 1 and the second support rod.

[0060] In the above structure, the filter rod particles in the embodiment of the present utility model are graded and screened through the slot width of the blanking chute 5. The screened filter rod particles can directly fall onto the blanking plane for subsequent collection. For more convenience, as one of the preferred implementation manners, the grading and screening device for filter rod particles in the embodiment of the present utility model further includes a collection box, wherein the collection box is arranged below the grading channel 4 and is used for collecting the filter rod particles screened by the blanking chute 5.

[0061] Further, as one of the specific implementation manners, a plurality of collection areas are arranged in the collection box in the embodiment of the present utility model, and the collection areas are sequentially arranged along the radial direction of the central axis of the bin 2. A plurality of collection points are arranged in one collection area. The plurality of collection points in the same collection area are located in the same circular ring. The collection points are arranged in one-to-one correspondence with the blanking chute 5, and the particle sizes of the filter rod particles in the collection points in the same collection area are equal.

[0062] As another implementation manner, the blanking chute 5 in the same slot width interval in the embodiment of the present utility model is connected to the collection box through a collection pipe. In this way, it can also ensure that the particle sizes of the filter rod particles in the same collection box are the same.

[0063] Further, as one of the implementation manners, the grading and screening device for filter rod particles in the embodiment of the present utility model further includes a vibrator. The vibrator is connected to the bin 2 and is used for vibrating the filter rod particles on the bin 2. On the one hand, it can avoid the phenomenon of accumulation of filter rod particles. On the other hand, it can avoid the blockage of the blanking port 3 by the filter rod particles.

[0064] Further, as one of the specific implementation manners, the grading and screening device for filter rod particles in the embodiment of the present utility model further includes a mounting seat 8, and the mounting seat 8 is arranged at one end of the column 1 away from the bin 2.

[0065] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present utility model. Therefore, the present utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A grading and screening device for filter rod particles, characterized in that, Comprising: A column (1); A bin (2) arranged at the top of the column (1) for receiving filter rod particles, the bin (2) having a downwardly inclined guiding surface, and a material dropping opening (3) provided at the lowest end of the guiding surface; A grading channel (4) arranged below the material dropping opening (3) for receiving filter rod particles, the grading channel (4) being inclined downward in a direction away from the bin (2); A material dropping groove (5) provided at the bottom of the grading channel (4), and the width of the material dropping groove (5) increasing gradually along the extending direction of the grading channel (4).

2. The grading and screening device for filter rod particles according to claim 1, wherein The bin (2) is specifically a conical structure and is inclined downward in a direction away from the central axis.

3. The grading and screening device for filter rod particles according to claim 2, wherein It further comprises: A material baffle arranged outside the guiding surface.

4. The grading and screening device for filter rod particles according to claim 2, wherein The guiding surface includes a first inclined surface (21) and a second inclined surface (22); Wherein, the second inclined surface (22) is arranged outside the first inclined surface (21), the inclination angle of the second inclined surface (22) is smaller than the inclination angle of the first inclined surface (21), and the material dropping opening (3) is arranged at one end of the second inclined surface (22) away from the first inclined surface (21).

5. The grading and screening device for filter rod particles according to claim 4, wherein At least two material dropping openings (3) are provided, and they are arranged at intervals on one side of the second inclined surface (22) away from the first inclined surface (21), and the grading channels (4) are arranged in one-to-one correspondence with the material dropping openings (3).

6. The grading and screening device for filter rod particles according to any one of claims 1 to 5, wherein It further comprises: A diversion channel (6) arranged between the material dropping opening (3) and the grading channel (4), the diversion channel (6) being used for receiving filter rod particles dropped from the material dropping opening (3) and conveying the filter rod particles into the grading channel (4).

7. The grading and screening device for filter rod particles according to claim 6, wherein It further comprises: A bracket (7) arranged between the column (1) and the grading channel (4), the brackets (7) being arranged in one-to-one correspondence with the grading channels (4), and both ends of the bracket (7) being fixedly connected to the column (1) and the grading channel (4) respectively.

8. The grading and screening device for filter rod particles according to any one of claims 1 to 5, 7, wherein It further comprises: A collection box arranged below the grading channel (4) for collecting filter rod particles.

9. The grading and screening device for filter rod particles according to any one of claims 1 to 5, 7, wherein It further comprises: A vibrator arranged on the bin (2).

10. The grading and screening device for filter rod particles according to any one of claims 1 to 5, 7, wherein Further included are: A mounting seat (8) provided at one end of the column (1) away from the silo (2).