Tobacco shred impurity separation device and production line

Abstract

The utility model belongs to the technical field of tobacco shred processing, and discloses a tobacco shred impurity separating device and a production line. The tobacco shred impurity separating device comprises a box body, a negative pressure part and an adjusting mechanism, the box body is hollow, a feeding port, a discharging port and a discharging port are formed in the box body, the feeding port is formed in the side wall of the box body, a mixture enters the box body from the feeding port, the discharging port is formed in the top of the box body, tobacco shreds leave the box body from the discharging port, the discharging port is formed in the bottom of the box body, and impurities are separated from the box body from the discharging port. The negative pressure piece is communicated with the discharging opening, so that negative pressure airflow in the direction from the discharging opening to the discharging opening is generated in the box body; the adjusting mechanism comprises a second air plate, and the second air plate is obliquely arranged in the box body, so that the negative-pressure airflow is divided into a plurality of regional airflow of which the speeds are sequentially decreased in the direction close to the discharging opening. The negative-pressure airflow is divided into regional airflow through the second air plate which is obliquely arranged, and the supporting force of the regional airflow is different, so that tobacco shreds are separated from impurities.

Description

Technical Field

[0001] This utility model relates to the field of tobacco processing technology, and in particular to a tobacco impurity separation device and production line. Background Technology

[0002] In tobacco processing, the formation of clumps, stems, and tobacco lumps (collectively referred to as impurities) in dried tobacco is the result of defects in multiple stages of the process.

[0003] First, uneven moisture content gradients in the tobacco during the drying process can lead to increased local stickiness, resulting in physically adhesive clumps. Second, wear on the cutting tools or insufficient cleaning of the copper chain during the cutting process can cause mechanical entanglement between the tobacco and the stem sticks, forming clumps containing stems. In addition, dry ice residue or material detachment from the inner wall of the flash evaporation equipment during the expanded tobacco process can also introduce high-density foreign matter. These impurities not only reduce the uniformity of tobacco filling but also cause quality problems such as cigarette punctures and uneven combustion during the rolling process. Utility Model Content

[0004] The purpose of this utility model is to provide a tobacco impurity separation device and production line to solve the problems in the prior art where dried tobacco contains clumps, stems and tobacco lumps, which reduces the uniformity of tobacco filling and causes quality problems such as cigarette punctures and uneven combustion during the rolling process.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On the one hand, a tobacco impurity separation device is provided, comprising:

[0007] The box body is hollow inside. The box body has an inlet, an outlet and a discharge port. The inlet is located on the side wall of the box body, and the mixture enters the box body through the inlet. The outlet is located at the top of the box body, and the tobacco leaves the box body through the outlet. The discharge port is located at the bottom of the box body, and impurities leave the box body through the discharge port.

[0008] A negative pressure component is connected to the discharge port to generate a negative pressure airflow inside the box along the discharge port towards the discharge port.

[0009] The regulating mechanism includes a second air vane, which is inclinedly disposed inside the housing to divide the negative pressure airflow into multiple airflow zones with progressively decreasing speeds along the direction closer to the discharge port.

[0010] As an optional technical solution for the tobacco impurity separation device, the adjustment mechanism further includes a first rotating shaft, which is rotatably disposed inside the housing in a horizontal direction, and a second air plate is fixed to the first rotating shaft. The rotation of the first rotating shaft can adjust the tilt angle of the second air plate.

[0011] As an optional technical solution for the tobacco impurity separation device, the adjustment mechanism further includes a first handle assembly. The first handle assembly includes a first connecting shaft and a second connecting shaft. The first connecting shaft is located outside the housing and is coaxially connected to one end of the first rotating shaft. The second connecting shaft is perpendicularly connected to the first connecting shaft for gripping.

[0012] As an optional technical solution for the tobacco impurity separation device, the adjustment mechanism further includes an indicator component, which includes an indicator scale and an indicator block. The indicator block has an arc groove, and the indicator scale is located on the indicator block. The indicator scale has the same curvature as the arc groove and is located inside or outside the arc groove. The first handle component further includes a third connecting shaft and a fourth connecting shaft. The third connecting shaft is perpendicularly connected to the first connecting shaft and has the same inclination angle as the second air plate. One end of the fourth connecting shaft is connected to the third connecting shaft, and the other end is placed in the arc groove.

[0013] As an optional technical solution for the tobacco impurity separation device, the adjustment mechanism further includes a third air plate, which is inclinedly arranged at the discharge port to limit the single-pass size of the tobacco, thereby slowing down the speed at which the tobacco leaves the discharge port.

[0014] As an optional technical solution for the tobacco impurity separation device, the adjustment mechanism further includes a second rotating shaft, which is rotatably disposed inside the housing in a horizontal direction, and the third air plate is fixed to the second rotating shaft. The rotation of the second rotating shaft can adjust the tilt angle of the third air plate.

[0015] As an optional technical solution for the tobacco impurity separation device, the adjustment mechanism further includes a first air plate, which is rotatably disposed inside the housing and whose first orthographic projection can coincide with a portion of the second orthographic projection of the discharge port. By changing the overlapping area of ​​the first orthographic projection and the second orthographic projection, the speed at which the negative pressure airflow enters from the discharge port can be adjusted.

[0016] As an optional technical solution for tobacco impurity separation device, there are two first air plates, which are hinged inside the box and can move closer to or further away from each other.

[0017] As an optional technical solution for the tobacco impurity separation device, the adjustment mechanism further includes an adjustment screw. The side wall of the housing is provided with a threaded hole. The adjustment screw is screwed into the threaded hole and one end is connected to the first air plate. Changing the screwing position of the adjustment screw and the threaded hole changes the overlapping area of ​​the first orthographic projection and the second orthographic projection.

[0018] On the other hand, a production line is provided, including the aforementioned tobacco impurity separation device.

[0019] The beneficial effects of this utility model are:

[0020] This application discloses a tobacco impurity separation device and production line. The tobacco impurity separation device includes a box, a negative pressure component, and an adjustment mechanism. The box is hollow inside and has an inlet, an outlet, and a discharge port. The inlet is located on the side wall of the box, and the mixture enters the box through the inlet. The outlet is located at the top of the box, and the tobacco leaves the box through the outlet. The discharge port is located at the bottom of the box, and impurities leave the box through the discharge port. The negative pressure component is connected to the outlet to generate a negative pressure airflow inside the box along the direction from the discharge port to the outlet. The adjustment mechanism includes a second air plate, which is inclined inside the box to divide the negative pressure airflow into multiple airflow zones with progressively decreasing speeds along the direction closer to the outlet. By using a tilted second air deflector to change the cross-sectional size of airflow channels at different heights, the negative pressure airflow inside the chamber can be divided into regional airflows with progressively decreasing speeds along the direction closer to the discharge port. Each region has a different airflow speed, and therefore a different support force. Since the tobacco is the lightest among the tobacco and impurities, it requires the least support force. After the regional airflow stratification, the tobacco will be located on the top layer and the impurities on the bottom layer, thus completing the separation of tobacco and impurities and improving the quality of the cigarette. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the tobacco impurity separation device provided in this embodiment of the utility model.

[0023] In the picture:

[0024] 10. Box body; 11. Inlet; 12. Outlet; 13. Discharge port; 14. Guide pipe;

[0025] 21. First air deflector; 22. Second air deflector; 23. Third air deflector; 24. First rotating shaft; 25. First handle assembly; 251. First connecting shaft; 252. Second connecting shaft; 253. Third connecting shaft; 254. Fourth connecting shaft; 26. Marking block; 261. Arc groove; 27. Second rotating shaft; 28. Adjusting screw. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between 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.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature 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 includes the first feature 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.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] In tobacco processing, uneven moisture content gradients during the drying process can lead to increased local stickiness and the formation of physically adhesive clumps. Secondly, wear on the cutting tools or insufficient cleaning of the copper chain during the cutting process can cause mechanical entanglement between the tobacco and the stem sticks, forming clumps containing stems. In addition, dry ice residue or material detachment from the inner wall of the flash evaporation equipment during the expanded tobacco process can also introduce high-density foreign matter. These impurities not only reduce the uniformity of tobacco filling but also cause quality problems such as cigarette punctures and uneven combustion during the rolling process.

[0031] To address the aforementioned problems, this embodiment provides a production line, including a tobacco impurity separation device. (See reference...) Figure 1 The tobacco impurity separation device includes a housing 10, a negative pressure component, and an adjustment mechanism.

[0032] Furthermore, the box 10 is hollow inside and has an inlet 11, an outlet 12, and a discharge port 13. The inlet 11 is located on the side wall of the box 10, and the mixture enters the box 10 through the inlet 11. The outlet 12 is located at the top of the box 10, and the tobacco leaves the box 10 through the outlet 12. The discharge port 13 is located at the bottom of the box 10, and impurities leave the box 10 through the discharge port 13. In this embodiment, the box 10 is configured as a spindle shape, with both ends of the box 10 configured as a combination of a truncated pyramid and a cylinder, and the middle configured as a cuboid. Specifically, the cuboid side wall is provided with an inclined guide pipe 14, and the inlet 11 is located at the end of the guide pipe 14. The inclined guide pipe 14 can increase the feeding speed of the mixture and prevent the mixture from clogging the guide pipe 14.

[0033] Furthermore, the negative pressure component is connected to the discharge port 12 to generate a negative pressure airflow inside the housing 10 along the discharge port 13 towards the discharge port 12. Specifically, the negative pressure component can be a vacuum pump or use the negative pressure of downstream equipment, which is not limited here. In other embodiments, an airflow blowing into the housing 10 can also be provided at the discharge port 13.

[0034] Furthermore, the adjustment mechanism includes a second air deflector 22, which is inclinedly disposed inside the housing 10 to divide the negative pressure airflow into multiple airflow zones with progressively decreasing speeds along the direction approaching the discharge port 12. By changing the cross-sectional size of the airflow channels at different heights through the inclined second air deflector 22, the negative pressure airflow can be divided into airflow zones with progressively decreasing speeds along the direction approaching the discharge port 12 inside the housing 10. The speed of the airflow in each zone is different, so the supporting force is also different. Since the tobacco is the lightest among the tobacco and impurities, it requires the least supporting force. After the airflow is stratified into zones, the tobacco will be on the top layer and the impurities will be on the bottom layer, thus completing the separation of tobacco and impurities and improving the quality of the cigarette.

[0035] In this embodiment, the adjustment mechanism further includes a first rotating shaft 24, which is rotatably disposed inside the housing 10 in a horizontal direction. The second air plate 22 is fixed to the first rotating shaft 24, and the rotation of the first rotating shaft 24 can adjust the tilt angle of the second air plate 22. Specifically, the first rotating shaft 24 is rotatably disposed on the side wall of the cuboid and perpendicular to the feeding direction of the feed inlet 11. The second air plate 22 is a square plate. The first rotating shaft 24 is located on the central axis of the second air plate 22 and is glued or plugged into the second air plate 22, etc., which will not be described in detail here.

[0036] Furthermore, the adjustment mechanism also includes a first handle assembly 25, which includes a first connecting shaft 251 and a second connecting shaft 252. The first connecting shaft 251 is located outside the housing 10 and coaxially connected to one end of the first rotating shaft 24. The second connecting shaft 252 is perpendicularly connected to the first connecting shaft 251 for gripping. In other embodiments, a rotary motor can be used instead of the second connecting shaft 252.

[0037] Furthermore, the adjustment mechanism also includes a marking component, which includes a marking scale and a marking block 26. The marking block 26 has an arc groove 261, and the marking scale is located on the marking block 26. The marking scale has the same curvature as the arc groove 261 and is located inside or outside the arc groove 261. The first handle assembly 25 also includes a third connecting shaft 253 and a fourth connecting shaft 254. The third connecting shaft 253 is perpendicularly connected to the first connecting shaft 251 and has the same tilt angle as the second air plate 22. One end of the fourth connecting shaft 254 is connected to the third connecting shaft 253, and the other end is placed in the arc groove 261. By comparing the position of the fourth connecting shaft 254 with the marking scale, the tilt angle of the second air plate 22 can be accurately adjusted and reflected, improving the accuracy of the negative pressure airflow separation, thereby improving the separation quality of tobacco and impurities.

[0038] In this embodiment, the second air deflector 22 is provided with a smooth guide plate. In other embodiments, multiple second air deflectors 22 may be provided at intervals, or multiple guide holes of different areas may be opened on the second air deflector 22 to achieve control of the negative pressure airflow velocity at different positions.

[0039] Furthermore, the adjustment mechanism also includes a third air deflector 23, which is inclinedly disposed at the discharge port 12 to limit the single-pass size of the tobacco shreds, thereby slowing down the speed at which the tobacco shreds detach from the discharge port 12. By rigidly limiting the detachment size of the tobacco shreds, the speed at which the tobacco shreds detach from the discharge port 12 is slowed down, avoiding insufficient separation of impurities due to a rapid detachment speed of the tobacco shreds, and improving the separation accuracy of tobacco shreds and impurities.

[0040] Specifically, the adjustment mechanism also includes a second rotating shaft 27, which is rotatably disposed inside the housing 10 in a horizontal direction. The third air plate 23 is fixed to the second rotating shaft 27, and the rotation of the second rotating shaft 27 can adjust the tilt angle of the third air plate 23. Further, in this embodiment, the adjustment mechanism also includes a second handle assembly, which has the same structure as the first handle assembly 25, and will not be described again here. In this embodiment, there are two sets of marking components, and the second handle assembly can also cooperate with the marking components to accurately adjust and reflect the tilt angle of the third air plate 23, improving the accuracy of tobacco detachment and thus improving the separation quality of tobacco and impurities.

[0041] Furthermore, the adjustment mechanism also includes a first air deflector 21. The first air deflector 21 is rotatably disposed inside the housing 10, and its first orthographic projection can coincide with a portion of the second orthographic projection of the discharge port 13. By changing the overlapping area of ​​the first and second orthographic projections, the speed at which the negative pressure airflow enters from the discharge port 13 is adjusted. Specifically, there are two first air deflectors 21, which are hinged inside the housing 10 and can move closer to or further away from each other. Specifically, the two first air deflectors 21 are hinged at the connection between the frustum of a square pyramid and the cuboid. Specifically, when the overlapping area of ​​the first and second orthographic projections increases, that is, when the cross-section of the airflow channel of the negative pressure airflow decreases, the speed of the negative pressure airflow will increase, and vice versa.

[0042] In this embodiment, the adjustment mechanism further includes an adjustment screw 28. A threaded hole is provided on the side wall of the housing 10. The adjustment screw 28 is screwed into the threaded hole, and one end is connected to the first air plate 21. Changing the screwing position of the adjustment screw 28 and the threaded hole changes the overlapping area of ​​the first and second orthographic projections. In this embodiment, the first air plate 21 is trapezoidal in shape and has the same size as the side wall of the truncated pyramid.

[0043] 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 various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments 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 tobacco impurity separation device, characterized in that, include: The box (10) is hollow inside. The box (10) has an inlet (11), an outlet (12) and a discharge port (13). The inlet (11) is located on the side wall of the box (10). The mixture enters the box (10) from the inlet (11). The outlet (12) is located at the top of the box (10). The tobacco leaves the box (10) from the outlet (12). The discharge port (13) is located at the bottom of the box (10). Impurities leave the box (10) from the discharge port (13). A negative pressure component is connected to the discharge port (12) to generate a negative pressure airflow inside the box (10) along the discharge port (13) toward the discharge port (12); The regulating mechanism includes a second air plate (22), which is inclinedly disposed inside the housing (10) to divide the negative pressure airflow into multiple regional airflows with progressively decreasing speeds along the direction close to the discharge port (12).

2. The tobacco impurity separation device according to claim 1, characterized in that, The adjustment mechanism further includes a first rotating shaft (24), which is rotatably disposed inside the housing (10) in the horizontal direction. The second air plate (22) is fixed to the first rotating shaft (24), and the rotation of the first rotating shaft (24) can adjust the tilt angle of the second air plate (22).

3. The tobacco impurity separation device according to claim 2, characterized in that, The adjustment mechanism further includes a first handle assembly (25), which includes a first connecting shaft (251) and a second connecting shaft (252). The first connecting shaft (251) is located outside the housing (10) and coaxially connected to one end of the first rotating shaft (24). The second connecting shaft (252) is perpendicularly connected to the first connecting shaft (251) for gripping.

4. The tobacco impurity separation device according to claim 3, characterized in that, The adjustment mechanism further includes an indicator component, which includes an indicator scale and an indicator block (26). The indicator block (26) has an arc groove (261). The indicator scale is located on the indicator block (26). The indicator scale has the same curvature as the arc groove (261) and is located inside or outside the arc groove (261). The first handle assembly (25) further includes a third connecting shaft (253) and a fourth connecting shaft (254). The third connecting shaft (253) is vertically connected to the first connecting shaft (251) and has the same inclination angle as the second air plate (22). One end of the fourth connecting shaft (254) is connected to the third connecting shaft (253), and the other end is placed in the arc groove (261).

5. The tobacco impurity separation device according to claim 1, characterized in that, The adjustment mechanism also includes a third air plate (23), which is inclinedly disposed at the discharge port (12) to limit the single-pass size of the tobacco shreds, thereby slowing down the speed at which the tobacco shreds detach from the discharge port (12).

6. The tobacco impurity separation device according to claim 5, characterized in that, The adjustment mechanism also includes a second rotating shaft (27), which is rotatably disposed inside the housing (10) in the horizontal direction. The third air plate (23) is fixed to the second rotating shaft (27), and the rotation of the second rotating shaft (27) can adjust the tilt angle of the third air plate (23).

7. The tobacco impurity separation device according to claim 1, characterized in that, The adjustment mechanism further includes a first air plate (21), which is rotatably disposed inside the housing (10) and the first orthographic projection of the first air plate (21) can overlap with a portion of the second orthographic projection of the discharge port (13). The overlapping area of ​​the first orthographic projection and the second orthographic projection is changed to adjust the speed at which the negative pressure airflow enters from the discharge port (13).

8. The tobacco impurity separation device according to claim 7, characterized in that, There are two first air panels (21), which are hinged inside the housing (10) and can move closer to or further away from each other.

9. The tobacco impurity separation device according to claim 7, characterized in that, The adjustment mechanism also includes an adjustment screw (28). The side wall of the housing (10) is provided with a threaded hole. The adjustment screw (28) is screwed into the threaded hole and one end is connected to the first air plate (21). By changing the screwing position of the adjustment screw (28) and the threaded hole, the overlapping area of ​​the first orthographic projection and the second orthographic projection is changed.

10. A production line, characterized in that, Includes the tobacco impurity separation device as described in any one of claims 1-9.

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