Secondary refining device and tobacco shred blending equipment
By using the equalizing rollers and stirring components of the two-stage equalizing device, the problems of clumping and unevenness of tobacco shreds during transportation are solved, achieving uniform transportation and efficient blending of tobacco shreds.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI CHINA TOBACCO INDUSTRY CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-05-12
AI Technical Summary
During the blending of tobacco shreds, the expanded fibers tend to clump together and become uneven, resulting in uneven blending and affecting the quality of the tobacco shreds.
A two-stage material leveling device is adopted, including a metering component, an electronic belt scale, and a material leveling mechanism. The material leveling roller and stirring component smooth and stir the tobacco shreds to ensure the uniformity of the tobacco shreds during the conveying process.
This effectively avoids clumping and uneven distribution of tobacco shreds during transportation, improving the uniformity and blending efficiency of blended tobacco shreds.
Smart Images
Figure CN224219414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco manufacturing technology, and in particular to a two-stage uniform feeding device and a tobacco blending equipment. Background Technology
[0002] During the production process, the expanded tobacco fibers in the blending section often accumulate during blending. After entering the feed pipe and passing through the electronic belt scale, the expanded tobacco fibers fall onto the conveyor belt. Because there is no pressure device at the feed pipe outlet, the material is unevenly distributed, easily forming uneven or wavy shapes. Furthermore, due to the excessive width of the electronic belt scale and the perpendicular orientation of the conveyor belt to the scale outlet, the expanded tobacco fibers fall intermittently, causing intermittent accumulation on the conveyor belt instead of being evenly spread. This results in uneven blending and affects the quality of the tobacco. Current technology uses photoelectric sensors to monitor the material height in the feed pipe and control the feeding speed of the upstream elevator, but tobacco accumulation still occurs on the final receiving conveyor, reducing the uniformity of blending when the tobacco enters the blending unit.
[0003] To solve the above problems, it is urgent to design a two-stage uniform feeding device and a tobacco blending equipment. Utility Model Content
[0004] One objective of this invention is to provide a two-stage uniform material device that can prevent tobacco shreds from accumulating into clumps on the receiving conveyor and ensure the uniformity of the tobacco shreds before blending.
[0005] Another objective of this invention is to provide a tobacco blending device that can improve the uniformity of blended tobacco and increase the blending efficiency.
[0006] To achieve this objective, the present invention adopts the following technical solution:
[0007] A secondary material leveling device includes a metering component, an electronic belt scale, and a material leveling mechanism. The electronic belt scale extends along a first direction. The metering component is located at one end of the electronic belt scale, and its outlet is located above the electronic belt scale. A material leveling roller is pivotally connected to the upper side of the outlet of the metering component. The material leveling mechanism is located at the other end of the electronic belt scale. The material leveling mechanism includes a material leveling box and a stirring component. The material leveling box is located downstream of the electronic belt scale and has a discharge port. The stirring component is pivotally connected to the material leveling box and can stir the tobacco shreds in the material leveling box. The tobacco shreds can fall from the electronic belt scale into the material leveling box and be discharged from the discharge port.
[0008] As an optional solution, the above-mentioned stirring assembly includes:
[0009] The stirring shaft is pivotally connected to the aforementioned material mixing box;
[0010] A sleeve extends along the axial direction of the aforementioned stirring shaft and is fitted over the aforementioned stirring shaft;
[0011] Multiple stirring blade assemblies are arranged at intervals along the axial direction of the sleeve, and each set of stirring blade assemblies includes at least two stirring blades, with the at least two stirring blades arranged at intervals along the circumferential direction of the sleeve.
[0012] As an alternative, the sleeve includes a plurality of sub-cylinders arranged sequentially along the axial direction of the stirring shaft, and each sub-cylinder is provided with a set of stirring blade assemblies on its outer periphery, and the sub-cylinders are detachably connected to the stirring shaft.
[0013] As an optional solution, the above-mentioned metering components include:
[0014] The tube body has openings at the top and bottom.
[0015] An adjusting plate is slidably connected to the side wall of the tube body facing downstream of the electronic belt scale, and the material leveling roller is pivotally connected to the bottom of the adjusting plate.
[0016] As an optional solution, the sidewall of the tube body facing downstream of the electronic belt scale is defined as the first sidewall. The first sidewall extends in a preset direction. One of the first sidewall and the adjustment plate has an elongated hole extending in the preset direction. The other one has a sliding protrusion. The sliding protrusion passes through the elongated hole and slides in cooperation with the elongated hole. The nut is threadedly connected to the sliding protrusion.
[0017] As an alternative, at least two of the elongated holes are spaced apart in the second direction, and the sliding protrusions are arranged in a one-to-one correspondence with the elongated holes. The second direction is perpendicular to the preset direction.
[0018] As an optional solution, the above-mentioned tube is equipped with an upper material level photocell, a middle material level photocell, and a lower material level photocell in sequence from top to bottom.
[0019] As an alternative, both the aforementioned tube and the aforementioned adjusting plate are transparent components.
[0020] As an alternative, the aforementioned tube and the aforementioned adjusting plate are made of acrylic sheets.
[0021] Tobacco blending equipment includes:
[0022] A connected elevator and a hopper, wherein the elevator is used to convey tobacco shreds to the hopper;
[0023] In the aforementioned two-stage material leveling device, the discharge end of the aforementioned hopper is connected to the inlet end of the aforementioned metering component;
[0024] The material receiving and conveying component has its outlet facing the material receiving and conveying component.
[0025] A blending component is disposed downstream of the aforementioned receiving and conveying component, which can convey the aforementioned tobacco shreds to the aforementioned blending component.
[0026] The beneficial effects of this utility model are as follows:
[0027] This invention provides a two-stage equalization device. Expanded tobacco shreds enter the metering component from the hopper. When the tobacco shreds exit the metering component onto the electronic belt scale, they pass through the equalization rollers. The equalization rollers smooth the tobacco shreds, preventing them from undulating during transport on the electronic belt scale. This ensures that the amount of expanded tobacco shreds transported on the electronic belt scale per unit time is average. Furthermore, when there is a height difference between the end of the electronic belt scale and the receiving conveyor, making clumping likely, the expanded tobacco shreds first enter the equalization box. The stirring component stirs the expanded tobacco shreds before they fall from the outlet onto the receiving conveyor, preventing clumping. In summary, this two-stage equalization device, through the equalization rollers and equalization mechanism, prevents the expanded tobacco shreds from undulating and clumping during transport, ensuring that the tobacco shreds on the final receiving conveyor are transported evenly and guaranteeing the uniformity of the blend.
[0028] This utility model also provides a tobacco blending device. By adopting the above-mentioned two-stage uniform material device, the uniformity of blended tobacco can be improved and the blending efficiency can be increased. Attached Figure Description
[0029] Figure 1 This is a schematic diagram of the structure of the tobacco blending equipment provided in this embodiment of the utility model;
[0030] Figure 2 This is a schematic diagram of the structure of the stirring assembly provided in this embodiment of the utility model;
[0031] Figure 3 This is an exploded view of the stirring assembly provided in an embodiment of this utility model;
[0032] Figure 4 This is a schematic diagram of the metering component provided in an embodiment of the present invention.
[0033] In the picture:
[0034] 100. Two-stage uniform material distribution device;
[0035] 10. Metering component; 11. Feeding roller; 12. Tube body; 121. First side wall; 1211. Sliding protrusion; 122. Second side wall; 123. Third side wall; 13. Adjusting plate; 131. Elongated hole; 15. Upper material position photocell; 16. Middle material position photocell; 17. Lower material position photocell;
[0036] 20. Electronic belt scale; 30. Material distribution mechanism; 31. Material distribution box; 32. Mixing assembly; 321. Mixing shaft; 322. Sleeve; 323. Mixing blade assembly; 3231. Mixing blade;
[0037] 200. Elevator; 300. Feeding hopper; 400. Receiving conveyor. Detailed Implementation
[0038] 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, not the entire structure.
[0039] 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.
[0040] 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.
[0041] In the description of this embodiment, the terms "upper," "lower," "left," and "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.
[0042] This embodiment provides a two-stage uniform material distribution device 100, which can prevent tobacco shreds from accumulating into clumps on the receiving conveyor 400, ensuring the uniformity of the tobacco shreds before blending. For example, Figure 1 As shown, the secondary uniform material device 100 is part of the tobacco blending equipment. The tobacco blending equipment also includes an elevator 200, a hopper 300, a receiving conveyor 400, and a blending component. The expanded tobacco is transported from bottom to top by the elevator 200, enters the secondary uniform material device 100 from the hopper 300, and is then fed into the blending component via the receiving conveyor 400.
[0043] Specifically, such as Figure 1 , Figure 2 as well as Figure 4 As shown, the secondary leveling device 100 includes a metering component 10, an electronic belt scale 20, and a leveling mechanism 30. The electronic belt scale 20 extends along a first direction. The metering component 10 is located at one end of the electronic belt scale 20, and the outlet of the metering component 10 is located above the electronic belt scale 20. A leveling roller 11 is pivotally connected to the upper side of the outlet of the metering component 10. The leveling mechanism 30 is located at the other end of the electronic belt scale 20. The leveling mechanism 30 includes a leveling box 31 and a stirring component 32. The leveling box 31 is located downstream of the electronic belt scale 20 and has a discharge port (not shown in the figure). The stirring component 32 is pivotally connected to the leveling box 31. The stirring component 32 can stir the tobacco in the leveling box 31. The tobacco can fall from the electronic belt scale 20 into the leveling box 31 and be discharged from the discharge port.
[0044] In the aforementioned two-stage equalization device 100, the expanded tobacco shreds enter the metering component 10 from the feed hopper 300. When the tobacco shreds exit the metering component 10 onto the electronic belt scale 20, they pass through the equalization roller 11. The equalization roller 11 smooths out the tobacco shreds, preventing them from undulating during transport on the electronic belt scale 20. This ensures that the amount of expanded tobacco shreds transported on the electronic belt scale 20 per unit time is average. Furthermore, when there is a height difference between the end of the electronic belt scale 20 and the receiving conveyor 400, making it easy for the expanded tobacco shreds to clump together, the expanded tobacco shreds first enter the equalization box 31. The stirring component 32 stirs the expanded tobacco shreds, and then they fall from the discharge port onto the receiving conveyor 400, preventing clumping. In summary, this two-stage equalization device 100, through the equalization roller 11 and the equalization mechanism 30, prevents the expanded tobacco shreds from undulating during transport and from clumping, ensuring that the tobacco shreds on the final receiving conveyor 400 are transported evenly and guaranteeing the uniformity of the blend.
[0045] Optionally, such as Figure 2 and Figure 3As shown, the stirring assembly 32 includes a stirring shaft 321, a sleeve 322, and multiple stirring blade assemblies 323. The stirring shaft 321 is pivotally connected to the uniform mixing box 31. The sleeve 322 extends axially along the stirring shaft 321 and is fitted over the stirring shaft 321. Multiple stirring blade assemblies 323 are spaced apart axially along the sleeve 322. Each set of stirring blade assemblies 323 includes at least two stirring blades 3231, which are arranged circumferentially around the sleeve 322. Furthermore, a driving component (not shown in the figure) is provided externally to drive the stirring shaft 321 to rotate. Through the above arrangement, the rotation of the stirring shaft 321 drives the sleeve 322 to rotate, causing the stirring blade assemblies 323 to rotate simultaneously. Multiple sets of stirring blade assemblies 323 ensure the uniformity of axial stirring.
[0046] In this embodiment, eight stirring blade assemblies 323 are arranged at intervals along the axial direction, and each stirring blade assembly 323 includes four stirring blades 3231. In other embodiments, the number of stirring blade assemblies 323 and stirring blades 3231 can be flexibly set according to the actual situation, and is not limited here.
[0047] In this embodiment, the sleeve 322 is a single piece, which facilitates quick installation.
[0048] In other embodiments, the sleeve 322 includes a plurality of sub-sleeves (not shown) arranged sequentially along the axial direction of the stirring shaft 321. Each sub-sleeve is provided with a set of stirring blade assemblies 323 on its outer periphery, and the sub-sleeves are detachably connected to the stirring shaft 321. With the above configuration, when one of the stirring blades 3231 is damaged, the corresponding sub-sleeve can be replaced individually without replacing the entire sleeve 322, thus saving replacement and maintenance costs.
[0049] In this embodiment, the stirring blade 3231 and the sleeve 322 are connected by welding. In other embodiments, they can also be connected by snap-fit or other methods, which is more convenient when replacing individual stirring blades 3231.
[0050] Optionally, such as Figure 4 As shown, the metering component 10 includes a tube 12 and an adjusting plate 13. The tube 12 has openings at the top and bottom. The top opening is connected to the feed hopper 300, and the bottom opening allows the expanded tobacco to pass through and enter the electronic belt scale 20. The adjusting plate 13 is slidably connected to the side wall of the tube 12 facing downstream of the electronic belt scale 20. The leveling roller 11 is pivotally connected to the bottom of the adjusting plate 13. It can be understood that by sliding the adjusting plate 13 relative to the side wall, the height of the bottom opening of the tube 12 can be adjusted, thereby adjusting the height of the expanded tobacco as it falls from the tube 12 and is fed out by the electronic belt scale 20. For different finished cigarettes, the tobacco blending ratio is different. Therefore, the height of the adjusting plate 13 can be adjusted according to different cigarettes to ensure a reasonable adjustment of the blending ratio.
[0051] Optionally, such as Figure 4 As shown, the sidewall of the tube body 12 facing downstream of the electronic belt scale 20 is defined as the first sidewall 121. The first sidewall 121 extends along a preset direction (the preset direction can be perpendicular to the X direction or at an angle, which is not limited here). One of the first sidewall 121 and the adjusting plate 13 has an elongated hole 131 extending along the preset direction, and the other has a sliding protrusion 1211. The sliding protrusion 1211 passes through the elongated hole 131 and slides with the elongated hole 131. A nut is threadedly connected to the sliding protrusion 1211. In this embodiment, the sliding protrusion 1211 is provided on the first sidewall 121, and the elongated hole 131 is provided on the adjusting plate 13. In other embodiments, the sliding protrusion 1211 can be provided on the adjusting plate 13, and the elongated hole 131 can be provided on the first sidewall 121.
[0052] In one optional embodiment, the sliding protrusion 1211 may be integrally formed and protruded on the first sidewall 121 or the adjusting plate 13. In another embodiment, a through hole may be formed on the first sidewall 121 or the adjusting plate 13, and the sliding protrusion 1211 may be in the form of a screw passing through the through hole. The head of the screw abuts against the first sidewall 121 or the adjusting plate 13, and the nut is threadedly connected to the shank of the screw and abuts against the adjusting plate 13 or the first sidewall 121.
[0053] Optionally, such as Figure 4 As shown, at least two elongated holes 131 are spaced apart in the second direction, and sliding protrusions 1211 are arranged in a one-to-one correspondence with the elongated holes 131. The second direction is perpendicular to the preset direction.
[0054] Optionally, the tube body 12 is formed by four side walls, and also includes a second side wall 122 and two third side walls 123, with the second side wall 122 and the first side wall 121 arranged opposite to each other, and the two third side walls 123 arranged opposite to each other.
[0055] Optionally, the tube body 12 is equipped with an upper material level photocell 15, a middle material level photocell 16, and a lower material level photocell 17 sequentially from top to bottom. It is understood that all three are communicatively connected to the aforementioned elevator 200. When the material height reaches the upper material level photocell 15, the feeding speed of the elevator 200 decreases significantly; when the material height reaches the lower material level photocell 17, the feeding speed of the elevator 200 increases, ensuring that the material height is basically maintained at the middle material level photocell 16. Optionally, all three are through-beam photocells, with one photocell located outside a third sidewall 123 and the other outside the opposite third sidewall 123.
[0056] Optionally, both the tube body 12 and the adjustment plate 13 are transparent. This allows for easy observation of the expansion wire inside the tube body 12 in real time, and also allows the phototube to transmit and receive light waves through the transparent material.
[0057] Optionally, the tube body 12 and the adjusting plate 13 are made of acrylic sheets. This material has high transparency, is readily available, inexpensive, has a certain degree of impact resistance, and a long service life.
[0058] The tobacco blending equipment provided in this embodiment includes a hoist 200, a hopper 300, the aforementioned two-stage uniform material distribution device 100, a receiving conveyor 400, and a blending component. The hoist 200 is used to convey tobacco shreds to the hopper 300; the discharge end of the hopper 300 is connected to the inlet end of the metering component 10; the discharge port of the uniform material distribution device 30 faces the receiving conveyor 400; the blending component is located downstream of the receiving conveyor 400, which conveys tobacco shreds to the blending component. This tobacco blending equipment, by employing the aforementioned two-stage uniform material distribution device 100, can improve the uniformity of blended tobacco shreds and increase the blending efficiency.
[0059] 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 two-stage uniform material distribution device, characterized in that, The device includes a metering component (10), an electronic belt scale (20), and a material leveling mechanism (30). The electronic belt scale (20) extends along a first direction. The metering component (10) is located at one end of the electronic belt scale (20), and the outlet of the metering component (10) is located above the electronic belt scale (20). A material leveling roller (11) is pivotally connected to the upper side of the outlet of the metering component (10). The material leveling mechanism (30) is located at the other end of the electronic belt scale (20). The material leveling mechanism (30) includes a material leveling box (31) and a stirring component (32). The material leveling box (31) is located downstream of the electronic belt scale (20) and has a discharge port. The stirring component (32) is pivotally connected to the material leveling box (31). The stirring component (32) can stir the tobacco in the material leveling box (31). The tobacco can fall from the electronic belt scale (20) into the material leveling box (31) and be discharged from the discharge port.
2. The two-stage uniform feeding device according to claim 1, characterized in that, The stirring assembly (32) includes: The stirring shaft (321) is pivotally connected to the uniform feeding box (31); A sleeve (322) extends along the axial direction of the stirring shaft (321) and is sleeved on the outside of the stirring shaft (321); Multiple stirring blade assemblies (323) are spaced apart along the axial direction of the sleeve (322), and each set of stirring blade assemblies (323) includes at least two stirring blades (3231), and at least two stirring blades (3231) are arranged circumferentially spaced along the sleeve (322).
3. The two-stage uniform feeding device according to claim 2, characterized in that, The sleeve (322) includes a plurality of sub-cylinders arranged sequentially along the axial direction of the stirring shaft (321). Each sub-cylinder is provided with a set of stirring blade assemblies (323) on its outer periphery. The sub-cylinders are detachably connected to the stirring shaft (321).
4. The two-stage uniform feeding device according to any one of claims 1-3, characterized in that, The metering component (10) includes: The tube body (12) has openings at its top and bottom. The adjusting plate (13) is slidably connected to the side wall of the tube body (12) facing downstream of the electronic belt scale (20), and the uniform roller (11) is pivotally connected to the bottom of the adjusting plate (13).
5. The two-stage uniform material distribution device according to claim 4, characterized in that, The sidewall of the tube body (12) facing downstream of the electronic belt scale (20) is defined as the first sidewall (121). The first sidewall (121) extends in a preset direction. One of the first sidewall (121) and the adjusting plate (13) has an elongated hole (131) extending in the preset direction. The other one has a sliding protrusion (1211). The sliding protrusion (1211) passes through the elongated hole (131) and slides with the elongated hole (131). A nut is threadedly connected to the sliding protrusion (1211).
6. The two-stage uniform feeding device according to claim 5, characterized in that, At least two elongated holes (131) are spaced apart in the second direction, and the sliding protrusions (1211) are arranged in a one-to-one correspondence with the elongated holes (131). The second direction is perpendicular to the preset direction.
7. The two-stage uniform material distribution device according to claim 4, characterized in that, The tube body (12) is equipped with an upper material level photocell (15), a middle material level photocell (16), and a lower material level photocell (17) in sequence from top to bottom.
8. The two-stage uniform material distribution device according to claim 4, characterized in that, Both the tube body (12) and the adjusting plate (13) are transparent.
9. The two-stage uniform feeding device according to claim 8, characterized in that, The tube body (12) and the adjusting plate (13) are made of acrylic sheets.
10. A tobacco blending equipment, characterized in that, include: A connected elevator (200) and a hopper (300), the elevator (200) being used to convey tobacco shreds to the hopper (300); In the secondary uniform material device according to any one of claims 1-9, the discharge end of the hopper (300) is connected to the feed end of the metering component (10); The material receiving conveyor (400) has its outlet facing the material receiving conveyor (400); A blending component is disposed downstream of the receiving conveyor (400), which can convey the tobacco shreds to the blending component.