Branch vein stalk winnowing device

By designing a branch stem air separation device and adjusting the air volume and discharge port size, the problems of material loss and incomplete stem removal in the air separator were solved, thus improving the quality of cigarette production.

CN224181372UActive Publication Date: 2026-05-01HONGTA TOBACCO (GROUP) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HONGTA TOBACCO (GROUP) CO LTD
Filing Date
2025-05-28
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

When adjusting the air volume of the existing air classifier, a small air volume increases material loss, while a large air volume results in incomplete removal of the stems and sticks, affecting the quality of the cigarettes.

Method used

A branch stem air separation device was designed, including an air duct assembly, a receiving box, and a separation adjustment assembly. By adjusting the opening size and air volume of the discharge port, the stems and sesame flakes can be effectively separated, avoiding material loss and stem contamination.

Benefits of technology

This technology reduces material waste while ensuring effective separation of stems and sticks, avoiding uneven cigarette weight and quality issues, and improving cigarette production quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of tobacco shred making, and particularly discloses a branch vein stalk winnowing device which comprises an air pipe assembly, a material receiving box and a separation adjusting assembly. The air pipe assembly comprises a material distributing pipe, an air inlet material pipe and an air outlet material pipe, the air inlet material pipe is connected to the side end of the material distributing pipe, and the air outlet material pipe is connected to the upper end of the material distributing pipe; a discharging opening is formed in the lower end of the material distributing pipe; the material receiving box is detachably connected to the material distributing pipe and communicates with the material discharging opening. The separation adjusting assembly is arranged between the material distributing pipe and the material receiving box. According to the utility model, qualified materials can be directly discharged out of the air outlet pipe along with air by adjusting proper air volume and the size of the discharge port, and meanwhile, slivers are always disturbed in the material distribution pipe under the influence of gravity and are gradually discharged into the material receiving box from the discharge port, so that the phenomenon that the loss of the materials is increased due to small air volume when the discharge port is open is avoided; and if the air volume is increased, the stem slivers cannot be completely removed.
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Description

Technical Field

[0001] This utility model relates to the field of silk production technology, and in particular to a branch vein wind separation device. Background Technology

[0002] The leaf-moistening and feeding sequence in the tobacco processing workshop is as follows: after passing through the slicing machine, the tobacco bales are conveyed by a belt conveyor to the loosening and rehydration stage. After heating and humidification, the leaves loosen and expand, and then are conveyed by a belt conveyor to the primary leaf storage cabinet for storage. Finally, the leaves are conveyed by a vibrating conveyor to the feeding roller for moistening and feeding. During the moistening and feeding process, many sesame flakes are mixed in with the tobacco leaves. Sesame flakes are tobacco leaf material produced during tobacco leaf crushing in the tobacco processing process. Appropriate addition of sesame flakes can improve the taste and reduce the tar content. However, sesame flakes are mixed with many branches and stems. In actual production, stem separation is required to separate the stems and tobacco shreds generated during cigarette production, so as to improve the utilization rate of tobacco shreds and reduce waste.

[0003] Currently, stems and twigs are typically separated using an air classifier. In existing technology, reducing the airflow of the air classifier can remove more stems and twigs, but this increases material loss; increasing the airflow can reduce material loss, but stems and twigs are more likely to be incompletely removed. Stems and twigs mixed in with the tobacco can cause uneven weight distribution in the cigarettes, and some stems and twigs may even puncture the cigarettes, affecting the quality of the finished cigarettes. Utility Model Content

[0004] The purpose of this invention is to provide a branch stem air separation device to solve the problem that in the prior art, reducing the air volume of the air separator can remove more stems, but increases material loss; while increasing the air volume can reduce material loss, but stems are easily not completely removed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a branch vein obstruction wind separation device, comprising:

[0007] The air duct assembly includes a distribution pipe, an inlet pipe, and an outlet pipe. The inlet pipe is connected to the side end of the distribution pipe, and the outlet pipe is connected to the upper end of the distribution pipe. A discharge port is provided at the lower end of the distribution pipe.

[0008] A receiving box, which is detachably connected to the distributing pipe and communicates with the discharge port;

[0009] A separation adjustment component is provided between the material distribution pipe and the material receiving box, and is used to adjust the opening size of the discharge port.

[0010] As an optional embodiment of the above-mentioned branch vein wind separation device, the separation adjustment assembly includes a bracket, an adjusting screw, an adjusting nut, and a baffle. The bracket is connected to the inner wall of the distribution pipe and is located at the discharge port. The adjusting screw passes through the bracket and is connected to the baffle, and the baffle can block the discharge port inside the distribution pipe. The adjusting nut is threadedly connected to the adjusting screw and is located between the baffle and the bracket.

[0011] As an alternative to the above-mentioned branch vein wind separation device, the separation adjustment assembly further includes an elastic element. The adjustment screw is provided with a protrusion, and the elastic element is sleeved on the adjustment screw. The elastic element is connected between the bracket and the protrusion. The elastic element is located on the side of the bracket away from the adjustment nut.

[0012] As an alternative to the aforementioned branch vein wind separation device, the side of the distribution pipe near the discharge port is arranged in a funnel structure.

[0013] As an alternative to the aforementioned branch vein air separation device, the air outlet pipe includes a transparent pipe section and an air outlet pipe section, with the two ends of the transparent pipe section respectively connected to the material distribution pipe and the air outlet pipe section.

[0014] As an alternative to the aforementioned branch vein wind separation device, the diameter of the air outlet pipe is set to gradually decrease from one side of the transparent pipe towards the other side.

[0015] As an alternative to the above-mentioned branch vein wind separation device, the distributing pipe is provided with a snap-fit ​​component, the receiving box has a snap-fit ​​opening, and after the receiving box is sleeved outside the distributing pipe, the snap-fit ​​component can snap into the snap-fit ​​opening.

[0016] As an alternative to the aforementioned branch vein air separation device, the air separation device further includes an observation window, which is openable and closable and located on the side end of the distribution pipe.

[0017] As an alternative to the above-mentioned branch vein air separation device, the branch vein air separation device further includes an air damper pipe, which is connected to the side of the outlet material pipe away from the distribution pipe.

[0018] The beneficial effects of this utility model are as follows:

[0019] The branch-type stem air separation device includes an air duct assembly, a receiving box, and a separation and adjustment assembly. The air duct assembly includes a distribution pipe, an inlet pipe, and an outlet pipe. The inlet pipe is connected to the side of the distribution pipe, and the outlet pipe is connected to the upper end of the distribution pipe. A discharge port is located at the lower end of the distribution pipe. The receiving box is detachably connected to the distribution pipe and connected to the discharge port. Air is introduced through the inlet pipe, feeding the tobacco mixture into the distribution pipe to separate the stems and sesame flakes. Air is discharged through the outlet pipe, discharging the separated sesame flakes from the tobacco mixture. Simultaneously, the separated stems fall into the receiving box for easy collection. The separation and adjustment component is located between the distribution pipe and the receiving box. It is used to adjust the opening size of the discharge port. By adjusting the appropriate air volume and the size of the discharge port, qualified sesame flakes can be directly discharged from the air supply pipe with the air. At the same time, the stems and twigs will always be disturbed in the distribution pipe due to gravity and gradually discharged from the discharge port into the receiving box. This avoids the problem that when the discharge port is open, a small air volume will increase material loss, while a large air volume will result in incomplete removal of stems and twigs. This also avoids the problem that stems and twigs mixed in with tobacco will cause uneven weight of the cigarettes or even puncture the cigarettes, affecting the quality of cigarette production. Attached Figure Description

[0020] Figure 1 This is a cross-sectional view of the air separation device provided in an embodiment of the present utility model;

[0021] Figure 2 This is a partial cross-sectional view of the air separation device provided in an embodiment of the present invention.

[0022] In the picture:

[0023] 1. Duct assembly; 11. Material distribution pipe; 111. Discharge port; 112. Clip-on component; 12. Inlet material pipe; 13. Outlet material pipe; 131. Transparent pipe section; 132. Outlet pipe section; 2. Material receiving box; 3. Separation and adjustment assembly; 31. Bracket; 32. Adjusting screw; 321. Protrusion; 33. Adjusting nut; 34. Baffle plate; 35. Elastic component; 4. Damper duct. Detailed Implementation

[0024] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Moreover, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0028] like Figure 1 and Figure 2 As shown, this embodiment provides a branch stem air separation device for separating stems from a mixture of tobacco materials.

[0029] The branch stem air separation device includes an air duct assembly 1, a receiving box 2, and a separation and adjustment assembly 3. The air duct assembly 1 includes a distribution pipe 11, an inlet air pipe 12, and an outlet air pipe 13. The inlet air pipe 12 is connected to the side end of the distribution pipe 11, and the outlet air pipe 13 is connected to the upper end of the distribution pipe 11. The lower end of the distribution pipe 11 has a discharge port 111. The receiving box 2 is detachably connected to the distribution pipe 11 and connected to the discharge port 111. Air can enter through the inlet air pipe 12 and send sesame flakes into the distribution pipe 11 to separate the stems and sesame flakes in the tobacco leaves. Air can exit through the outlet air pipe 13 and send out the sesame flakes after the tobacco leaf mixture is separated. At the same time, the stems after the tobacco leaf mixture is separated can fall into the receiving box 2 for easy collection.

[0030] The separation and adjustment component 3 is located between the distribution pipe 11 and the receiving box 2. It is used to adjust the opening size of the discharge port 111. By adjusting the appropriate air volume and the size of the discharge port 111, the sesame flakes can be directly discharged from the air supply pipe 13 with the airflow. At the same time, the stems and twigs will be constantly disturbed within the distribution pipe 11 due to gravity and gradually discharged from the discharge port 111 into the receiving box 2. This avoids the problem that when the discharge port 111 is open, a smaller air volume will increase material loss, while a larger air volume will result in incomplete removal of the stems and twigs. This also avoids the problem of stems and twigs being mixed in with the tobacco, causing uneven weight of the cigarettes or even puncturing the cigarettes, thus affecting the quality of cigarette production. Optionally, the side of the distribution pipe 11 near the discharge port 111 is set in a funnel structure. When the stems and twigs in the distribution pipe 11 fall onto the funnel structure, they are more easily discharged from the discharge port 111 into the receiving box 2 due to gravity and airflow.

[0031] like Figure 2 As shown, the separation adjustment assembly 3 includes a bracket 31, an adjusting screw 32, an adjusting nut 33, and a baffle 34. The bracket 31 is connected to the inner wall of the distribution pipe 11 and located at the discharge port 111. The adjusting screw 32 passes through the bracket 31 and is connected to the baffle 34, which can block the discharge port 111 inside the distribution pipe 11. The adjusting nut 33 is threadedly connected to the adjusting screw 32 and is located between the baffle 34 and the bracket 31. By adjusting the position of the adjusting nut 33 on the adjusting screw 32, the height of the baffle 34 can be adjusted, thereby adjusting the gap between the baffle 34 and the discharge port 111, allowing the sticks to be discharged into the receiving box 2 through the gap between the baffle 34 and the discharge port 111. Optionally, the baffle 34 is composed of two upper and lower discs clamping a rubber pad. Further optionally, multiple adjusting nuts 33 are provided.

[0032] Meanwhile, the separation adjustment assembly 3 also includes an elastic element 35. The adjustment screw 32 is provided with a protrusion 321. The elastic element 35 is sleeved on the outside of the adjustment screw 32. The elastic element is connected between the bracket 31 and the protrusion 321. The elastic element 35 is located on the side of the bracket 31 away from the adjustment nut 33. Thus, by setting the elastic element 35, the adjustment nut 33 can always be connected to the bracket 31, thereby preventing the baffle 34 from shaking due to wind force.

[0033] like Figure 1 and Figure 2 As shown, the air outlet pipe 13 includes a transparent pipe section 131 and an air outlet pipe section 132. The two ends of the transparent pipe section 131 are connected to the distribution pipe 11 and the air outlet pipe section 132, respectively. The transparent pipe section 131 allows workers to observe the separation of the internal stems and sesame flakes, facilitating adjustment of the airflow and / or the opening size of the discharge port 111. Optionally, the diameter of the air outlet pipe section 132 gradually decreases from one side of the transparent pipe section 131 to the other, allowing the separated sesame flakes to be gathered and easily discharged.

[0034] Furthermore, the distributing pipe 11 is provided with a snap-fit ​​component 112, and the receiving box 2 has a snap-fit ​​opening. After the receiving box 2 is fitted onto the distributing pipe 11, the snap-fit ​​component 112 can snap into the snap-fit ​​opening. Thus, the snap-fit ​​component 112 and the snap-fit ​​opening facilitate the installation and removal of the receiving box 2 on the distributing pipe 11, making it convenient to clean the collected stems. Specifically, the snap-fit ​​opening extends circumferentially on the receiving box 2, so that by rotating the receiving box 2, the snap-fit ​​component 112 can be connected to the snap-fit ​​opening.

[0035] Furthermore, the branch stem air separation device also includes an observation window, which is openable and closable and located on the side of the distribution pipe 11. This allows staff to easily observe the internal condition of the distribution pipe 11 and facilitates cleaning in case of blockage. Additionally, the branch stem air separation device also includes an air damper pipe 4, which is connected to the side of the outlet pipe 13 away from the distribution pipe 11. This damper pipe 4 allows for adjustment of the airflow and speed, facilitating coordination with the opening size of the discharge port 111 to achieve the separation of stems and sesame flakes.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A branch vein obstruction wind separation device, characterized in that, include: The air duct assembly (1) includes a distribution pipe (11), an inlet pipe (12), and an outlet pipe (13). The inlet pipe (12) is connected to the side end of the distribution pipe (11), and the outlet pipe (13) is connected to the upper end of the distribution pipe (11). The lower end of the distribution pipe (11) is provided with a discharge port (111). Material receiving box (2), which is detachably connected to the material distribution pipe (11) and connected to the discharge port (111); Separation adjustment component (3) is disposed between the material distribution pipe (11) and the material receiving box (2) and is used to adjust the opening size of the discharge port (111).

2. The air separation device according to claim 1, characterized in that, The separation adjustment assembly (3) includes a bracket (31), an adjusting screw (32), an adjusting nut (33), and a baffle (34). The bracket (31) is connected to the inner wall of the distribution pipe (11) and is located at the discharge port (111). The adjusting screw (32) passes through the bracket (31) and is connected to the baffle (34), and the baffle (34) can block the discharge port (111) inside the distribution pipe (11). The adjusting nut (33) is threaded to the adjusting screw (32) and is located between the baffle (34) and the bracket (31).

3. The branch artery obstruction wind separation device according to claim 2, characterized in that, The separation adjustment assembly (3) further includes an elastic element (35), the adjustment screw (32) is provided with a protrusion (321), the elastic element (35) is sleeved on the adjustment screw (32), and the elastic element is connected between the bracket (31) and the protrusion (321); the elastic element (35) is located on the side of the bracket (31) away from the adjustment nut (33).

4. The air separation device according to claim 1, characterized in that, The material distribution pipe (11) is arranged in a funnel structure on the side near the discharge port (111).

5. The air separation device according to claim 1, characterized in that, The air outlet pipe (13) includes a transparent pipe section (131) and an air outlet pipe section (132), with the two ends of the transparent pipe section (131) connected to the material distribution pipe (11) and the air outlet pipe section (132), respectively.

6. The branch vein obstruction wind separation device according to claim 5, characterized in that, The diameter of the air outlet duct (132) is gradually reduced from one side of the transparent duct (131) toward the other side.

7. The branch vein obstruction wind separation device according to claim 1, characterized in that, The material distribution pipe (11) is provided with a snap-fit ​​component (112), and the material receiving box (2) has a snap-fit ​​opening. After the material receiving box (2) is sleeved on the outside of the material distribution pipe (11), the snap-fit ​​component (112) can snap into the snap-fit ​​opening.

8. The branch vein obstruction wind separation device according to any one of claims 1 to 7, characterized in that, The air separation device also includes an observation window, which is openable and closable and located on the side of the material distribution pipe (11).

9. The branch vein obstruction wind separation device according to any one of claims 1 to 7, characterized in that, The air separation device also includes an air damper pipe (4), which is connected to the side of the air outlet pipe (13) away from the material distribution pipe (11).