Vacuum moisture regain material guiding device

By installing a vacuum rehumidification guiding device with inclined plates and rotating plates at the conveyor belt exit, the problem of uneven distribution of tobacco blocks in the turnover box was solved, improving the vacuum rehumidification effect and the quality of tobacco blocks.

CN224069700UActive Publication Date: 2026-04-03CHINA TOBACCO GUANGDONG IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-17
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

In existing technologies, the tobacco blocks are unevenly positioned when transported to the turnover box by the conveyor belt, resulting in poor vacuum rehumidification effect and excessively high density in some areas, which affects the re-permeability and insecticidal effect.

Method used

A vacuum rehumidification and material guiding device is adopted. By installing inclined plates and rotating plates on the outlet side of the conveyor belt, the driving component pushes the smoke blocks to slide along the inclined plates, and the rotating plate pushes the smoke blocks to change their sliding position, so that they are evenly distributed in the turnover frame.

Benefits of technology

This method achieves uniform distribution of tobacco blocks within the turnover frame, improves the vacuum rehumidification effect and re-permeability, enhances the quality of the tobacco blocks, reduces the stacking height, and strengthens the insecticidal effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of tobacco block moisture regaining, and discloses a vacuum moisture regaining material guiding device. The conveying belt drives the cigarette blocks to move, an inclined plate is installed on the outlet side of the conveying belt, the cigarette blocks slide into the turnover frame along the inclined plate, a rotating plate is rotationally installed on the inclined plate, a driving component is further installed on the inclined plate, the driving component pushes the rotating plate to move, and the rotating plate abuts against the cigarette blocks; the problems that in the prior art, the falling positions of tobacco blocks conveyed by a conveying belt into a turnover box are single and uneven, and the back-through effect of the tobacco blocks after vacuum moisture regaining is poor are solved.
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Description

Technical Field

[0001] This utility model relates to the field of tobacco block rehumidification technology, and in particular to a vacuum rehumidification feeding device. Background Technology

[0002] Vacuum rehumidification is the first step in tobacco production. After unpacking the tobacco boxes, the tobacco blocks are removed. At this stage, the tobacco shreds inside the blocks have low moisture content and are prone to turning into powder, making them unsuitable for cigarette rolling. The entire tobacco block is cut into smaller blocks, which are then conveyed to a transfer box via a vacuum rehumidification feeding device. The transfer box then transports the smaller blocks to the vacuum rehumidification machine for vacuum rehumidification. However, the relative position between the conveyor belt and the transfer box is fixed. As a result, the smaller blocks accumulate in the same spot within the transfer box, leading to uneven distribution. The high density in some areas prevents the internal tobacco shreds from being properly vacuumed and moistened during the rehumidification process. Furthermore, insect eggs inside the tobacco blocks cannot be eliminated, reducing the rehumidification rate and resulting in poor vacuum rehumidification performance. Utility Model Content

[0003] The purpose of this invention is to provide a vacuum rehumidification material guiding device to solve the problem that, under the existing technology, the smoke blocks are transported to the turnover box by the conveyor belt and fall in a single, uneven position, resulting in poor re-permeability of the smoke blocks after vacuum rehumidification.

[0004] To achieve this objective, the present invention adopts the following technical solution: The present invention provides a vacuum rehumidification and guiding device, including a conveyor belt, which drives the smoke block to move. An inclined plate is installed on the outlet side of the conveyor belt, and the smoke block slides along the inclined plate into a turnover frame. A rotating plate is rotatably installed on the inclined plate, and a driving component is also installed on the inclined plate. The driving component pushes the rotating plate to move, and the rotating plate abuts against the smoke block.

[0005] Preferably, the driving component includes a cylinder that pushes the telescopic rod to move perpendicular to the sliding direction of the smoke block. A roller is installed at the front end of the telescopic rod, and the roller abuts against the rotating plate.

[0006] Preferably, the cylinder comprises two sets, and the cylinders are installed on both sides of the sliding direction of the smoke block.

[0007] Preferably, a belt scale is installed on the underside of the conveyor belt, the belt scale is electrically connected to a solenoid valve, the cylinder is connected to an air source through the solenoid valve, and a throttle valve is also installed between the solenoid valve and the cylinder.

[0008] Preferably, guard plates are installed on both sides of the conveyor belt, and a hinge is installed on the side of the guard plate near the inclined plate, and the hinge is connected to the rotating plate.

[0009] Preferably, the guard plate extends to both sides away from the conveyor belt to form ear plates, and a drive member is fixed on the ear plates.

[0010] Preferably, the rotating plate is parallelogram-shaped, and one side of the rotating plate is parallel to the surface of the inclined plate.

[0011] Beneficial effects: A rotating plate is installed on the inclined plate, which pushes the tobacco block sliding on the inclined plate. This allows the tobacco block to change the angle at which it slides into the turnover frame, so that the tobacco block can fall to other positions within the turnover frame. This makes the tobacco block fall into the turnover frame more evenly, the sealing distribution more uniform, the vacuum rehumidification effect better, and the re-permeability of the tobacco block improved. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the working process of the vacuum rehumidification and material guiding device of this utility model;

[0013] Figure 2 This is a schematic diagram of the cylinder connection of this utility model;

[0014] Figure 3 This is a drawing of the main body of the rotating plate of this utility model.

[0015] In the diagram: 1-conveyor belt; 2-sloping plate; 3-rotating plate; 4-cylinder; 5-telescopic rod; 6-roller; 7-guard plate; 8-ear plate; 9-hinge; 10-solenoid valve; 11-throttle valve; 12-smoke block; 13-gas source. Detailed Implementation

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] In the current technology, the density of tobacco blocks piled up in some areas of the turnover frame is too high, which reduces the air permeability and affects the vacuum rehumidification effect. At the same time, the stacking height in some areas exceeds the height of the turnover frame, which will affect the vacuum rehumidification effect. In particular, the vacuum rehumidification effect of tobacco blocks squeezed in the middle will be greatly reduced during the vacuum rehumidification process, which will also reduce the re-permeability and reduce the quality of the final cigarette.

[0021] To solve the above problems, such as Figures 1 to 3 As shown, this utility model provides a vacuum rehumidification and material guiding device, including a conveyor belt 1, which moves a smoke block 12. An inclined plate 2 is installed on the outlet side of the conveyor belt 1, and the smoke block 12 slides into a turnover frame along the inclined plate 2. A rotating plate 3 is rotatably installed on the inclined plate 2, and a driving component is also installed on the inclined plate 2. The driving component pushes the rotating plate 3 to move, and the rotating plate 3 abuts against the smoke block 12.

[0022] This invention uses a conveyor belt 1 to transport pre-cut tobacco blocks 12. The tobacco blocks 12 fall along the inclined plate 2 into a turnover frame. During the sliding process on the turnover frame, the driving component pushes the rotating plate 3 to rotate and move. The rotating plate 3 pushes the tobacco blocks 12, causing them to deviate as they slide and eventually fall to other positions within the turnover frame. This makes the positions of the tobacco blocks 12 more diverse and evenly distributed, avoiding an excessive number of tobacco blocks 12 in a single location. It also reduces the density in some areas of the turnover frame, allowing the vacuum and rehumidification processes to completely penetrate the accumulated tobacco blocks 12. This results in a more even density distribution of the tobacco blocks 12 within the turnover frame, better vacuum rehumidification, and improved re-permeability of the tobacco blocks 12. During the vacuum insecticidal process, the tobacco blocks 12 can be penetrated, and during the rehumidification process, all tobacco leaves can be moistened. Simultaneously, it prevents the cigarette blocks 12 from stacking too high. Testing showed that after introducing the vacuum rehumidification and material guiding device, the stacking height of the cigarette blocks 12 decreased to 102.4 mm, a significant reduction of 25.9% compared to before. This change indicates that the stacking state of the cigarette blocks 12 has become more uniform and dispersed. The re-permeability of the cigarette blocks 12 has also improved. After introducing the vacuum rehumidification and material guiding device, the re-permeability of the cigarette blocks 12 has significantly increased to 99.08%, an increase of 0.58% compared to before, resulting in higher quality final cigarette products.

[0023] The driving component of this invention includes a cylinder 4, which pushes a telescopic rod 5 to move perpendicular to the sliding direction of the tobacco block 12. A roller 6 is installed at the front end of the telescopic rod 5, and the roller 6 abuts against the rotating plate 3. When the telescopic rod 5 extends inside the cylinder 4, the roller 6 rolls on the rotating plate 3, while the rotating plate 3 rotates around the axis. By controlling the telescopic rod 5 with the cylinder 4 to move precisely, the tobacco block 12 can be controlled to fall into the turnover frame from different positions.

[0024] During the selection of cylinder 4, the model of cylinder 4 needs to be selected based on the weight of smoke block 12. Typically, the weight of smoke block 12 is 400N. Using the gravity calculation formula, the force along the direction of inclined plate 2 is about 200N, the resistance on rotating plate 3 is about 200N, and the resistance on telescopic rod 5 is 173N. The above calculation method uses trigonometric functions, which is a conventional calculation method. The force provided by cylinder 4 to telescopic rod 5 needs to be greater than 173N. In addition, combined with the stress calculation formula in the "Mechanical Design Handbook", it is necessary to ensure that the telescopic dry stress is greater than 25.4Mpa.

[0025] The cylinder 4 of this utility model includes two sets. The cylinder 4 is installed on both sides of the sliding direction of the smoke block 12. The rotating plates 3 on both sides generally rotate in the same direction. The rotating plates 3 on both sides and the inclined plate 2 on the lower side can form a guide groove. The smoke block 12 slides in the guide groove. By controlling the extension of the telescopic rod 5, the sliding position of the smoke block 12 on the inclined plate 2 can be adjusted, so that the smoke block 12 entering the turnover frame can be more evenly distributed.

[0026] A belt scale is installed on the underside of the conveyor belt 1. The belt scale is electrically connected to the solenoid valve 10. The cylinder 4 is connected to the air source 13 through the solenoid valve 10. A throttle valve 11 is also installed between the solenoid valve 10 and the cylinder 4. The belt scale can usually measure the cumulative weight of the cigarette blocks 12 passing through the conveyor belt 1. The belt scale has a built-in control program. Whenever the newly added weight on the belt scale reaches the set value, the belt scale will send an electrical signal to the solenoid valve 10 to start the cylinders 4 on both sides. This causes the previously retracted telescopic rods 5 to extend and retract. This can change the guiding position of the guide rail, causing the cigarette blocks 12 to fall to the other side of the turnover frame. Finally, the cigarette blocks 12 are evenly dropped in the turnover frame. The above process will cycle as the newly added weight on the belt scale reaches the set value. Whenever the cumulative weight reaches the set value, the cylinder 4 will change the extension state of the telescopic rods 5. Installing the throttle valve 11 can control the flow rate of gas in the cylinder 4, which in turn can control the rotation speed of the rotating plate 3, and precisely control the position where the smoke block 12 falls from the inclined plate 2.

[0027] Protective plates 7 are installed on both sides of the conveyor belt 1. A hinge 9 is installed on the side of the protective plate 7 near the inclined plate 2, and the hinge 9 is connected to the rotating plate 3. The protective plates 7 can protect the smoke block 12 from falling during the conveying process of the conveyor belt 1. At the same time, the hinge 9 is integrated at one end of the protective plate 7, which can make the integration of the vacuum rehumidification material guiding device higher.

[0028] The guard plate 7 extends to both sides away from the conveyor belt 1 to form ear plates 8. A drive component is fixed on the ear plate 8. The cylinder 4 is usually fixed on the ear plate 8. Holes are opened on the ear plate 8, and the telescopic rod 5 is inserted into the holes.

[0029] The rotating plate 3 is parallelogram-shaped, and one side of the rotating plate 3 is parallel to the surface of the inclined plate 2. This allows the rotating plate 3 to be closer to the inclined plate 2, keeps the gap between the rotating plate 3 and the inclined plate 2 consistent, and allows the smoke block 12 to be pushed, preventing the smoke block 12 from getting stuck in the gap between the rotating plate 3 and the inclined plate 2.

[0030] 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 vacuum conditioning material guiding device, characterized by, The utility model provides a kind of tobacco block conveying device, including conveying belt (1), the conveying belt (1) moves tobacco block (12), the outlet side of the conveying belt (1) is equipped with inclined plate (2), the tobacco block (12) is slid along the inclined plate (2) into per revolution frame, rotatory plate (3) is rotatably installed on the inclined plate (2), driving member is also installed on the inclined plate (2), the driving member pushes the rotatory plate (3) and moves, and the rotatory plate (3) is in abutment with tobacco block (12).

2. The vacuum conditioning lead-through according to claim 1, characterized in that The driving member includes cylinder (4), the cylinder (4) pushes telescopic rod (5) and moves perpendicular to the sliding direction of tobacco block (12), the telescopic rod (5) front end is equipped with gyro wheel (6), and the gyro wheel (6) is in abutment with the rotatory plate (3).

3. The vacuum conditioning lead-through according to claim 2, characterized in that The cylinder (4) includes two groups, and the cylinder (4) is installed on both sides of the sliding direction of tobacco block (12).

4. The vacuum conditioning material guiding device according to claim 3, wherein The lower side of the conveying belt (1) is equipped with belt scale, the belt scale is electrically connected with electromagnetic valve (10), the cylinder (4) is communicated with gas source (13) by electromagnetic valve (10), and throttle valve (11) is also installed between the electromagnetic valve (10) and the cylinder (4).

5. The vacuum conditioning lead device of claim 1, wherein, The both sides of the conveying belt (1) are equipped with guard plate (7), the side of the guard plate (7) close to the inclined plate (2) is equipped with hinge (9), and the hinge (9) is connected with the rotatory plate (3).

6. The vacuum conditioning material guiding device according to claim 5, wherein The guard plate (7) extends to the both sides away from the conveying belt (1) and is formed with lug (8), and the lug (8) is fixed with driving member.

7. The vacuum conditioning lead device of claim 5, wherein, The rotatory plate (3) is parallelogram, and one side of the rotatory plate (3) is parallel to the surface of the inclined plate (2).