Device for stabilizing moisture of cut tobacco before drying

Abstract

The utility model discloses a pre-baking cut tobacco moisture stabilizing device which comprises a fixing plate, connecting plates are arranged on the left side and the right side of the fixing plate, a base is arranged on the front side wall of each connecting plate, a sliding groove is formed in the inner side face of each base, and a sliding block is movably embedded in each sliding groove. The inner side wall of each sliding block is connected with a shell through a connecting block, a motor and a lead screw are arranged in each shell, each lead screw is sleeved with a rectangular block, each rectangular block is connected with a connecting rod, each connecting rod extends out of the corresponding shell, each connecting rod is connected with a baffle, a roller is arranged between the baffles, and a top base is arranged between the top ends of the shells. An air cylinder is arranged between the fixing plate and the top base. According to the device for stabilizing the moisture of the cut tobacco before drying, the drum can achieve the function of automatically adjusting the longitudinal position and the horizontal position of a material formula through electric control driving, manual operation is replaced with mechanical operation, time and labor are saved during operation, the adjusting efficiency is improved, and the mechanical operation precision is higher.

Description

Technical Field

[0001] This utility model relates to the field of tobacco manufacturing technology, and more specifically, to a device for stabilizing the moisture content of tobacco leaves before drying. Background Technology

[0002] Currently, in the cigarette manufacturing industry, the cut tobacco leaves on the production line are fed into a limiting tube via a belt conveyor. The height of the adjusting plate at the lower end of the limiting tube controls the outlet flow rate, while the rollers compact the material, thereby ensuring that the tobacco leaves are flat on the surface of the electronic scale to meet the stability requirements of moisture detection.

[0003] Infrared moisture meters have very high sensitivity, primarily relying on the amount of moisture absorbed by infrared light from the leaf filaments to detect and provide feedback on the moisture content. Moisture detection is most sensitive at close range and weaker at greater distances. Therefore, it is essential that the leaf filaments on the electronic scale have a uniform thickness and a smooth surface free of cracks or unevenness. These factors are crucial for the accuracy and stability of the moisture meter's readings.

[0004] The moisture content of the dried tobacco leaves directly affects the completion of indicators such as filling value, curl, and elasticity of the finished cigarette tobacco, and is also the most important assessment indicator for evaluating the processing of the tobacco leaves. The moisture control process of the drying machine requires a PLC system to adjust the drying cylinder temperature, hot air, and dehumidification valve opening based on the moisture content of the incoming material from the pre-weighing electronic scale. The outlet moisture content is calculated to achieve the set requirements. Therefore, instability in the pre-weighing flow and moisture content necessitates frequent valve adjustments by the PLC, causing a chain reaction of outlet moisture fluctuations. This severely affects the pass rate of the outlet moisture content assessment, and also impacts product quality and compliance with homogenization requirements.

[0005] In actual production, the height of the flow control tube adjusting plate needs to be adjusted according to the different blade formulations to ensure that the outlet height of the flow control tube is greater than the width of the flow control tube. Simultaneously, the adjusting plate and back plate must be parallel to ensure that the width of the inner blades within the flow control tube is consistent vertically, allowing the roller to rotate without obstructing blade flow, thus ensuring stable blade flow and accurate moisture detection. Currently, the flow control tube adjusting plate is manually adjusted, which is time-consuming, labor-intensive, and has low adjustment accuracy.

[0006] Therefore, there is an urgent need for a device to stabilize the moisture content of the drying blades. Utility Model Content

[0007] The purpose of this invention is to provide a device for stabilizing the moisture content of the drying blades to solve the problems in the prior art. It can use electronic control to drive the drum to automatically adjust the longitudinal and horizontal positions of the material formula. The mechanical operation replaces manual operation, saving time and effort, improving adjustment efficiency, and increasing the precision of mechanical operation.

[0008] This utility model provides a device for stabilizing the moisture content of filaments before drying, comprising: a fixed plate, connecting plates on the left and right sides of the fixed plate, a base on the front side wall of each connecting plate, a groove on the inner side of each base, a slider movably embedded in each groove, a housing connected to the inner side wall of each slider via a connecting block, a motor and a lead screw respectively disposed in each housing, a rectangular block sleeved on each lead screw, a connecting rod connected to each rectangular block, and each connecting rod extending outside the housing, a baffle connected to each connecting rod, a roller disposed between each baffle, a top seat disposed between the top ends of each housing, and a cylinder disposed between the fixed plate and the top seat.

[0009] In the pre-drying blade moisture stabilization device described above, preferably, the motor is detachably mounted on the inner bottom wall of the housing, the output end of the motor is locked to the lead screw via a coupling, the top end of the lead screw is fixedly connected to the inner top wall of the housing via a first bearing, and the outer wall of the lead screw is threadedly connected to the first bearing.

[0010] In the pre-drying blade moisture stabilization device described above, preferably, the outer ring of each first bearing is fixedly connected to the inner wall of the corresponding housing 7 through a bearing seat, and the inner ring of each first bearing is interference-fitted to the outer wall of the corresponding lead screw.

[0011] In the pre-drying leaf filament moisture stabilization device described above, preferably, the drum includes a built-in electric drum.

[0012] In the pre-drying blade moisture stabilization device described above, preferably, the inner sidewall of each of the baffles is rotatably connected to the roller via a second bearing.

[0013] In the pre-drying blade moisture stabilization device described above, preferably, the outer wall of the roller is provided with a plurality of protrusions.

[0014] In the pre-drying blade moisture stabilization device described above, preferably, each of the protrusions is arranged in a circumferentially spaced manner on the outer wall of the drum.

[0015] In the pre-drying blade moisture stabilization device described above, preferably, the cylinder is detachably mounted on the front end face of the fixed plate, and the front side of the drive end of the cylinder is fixedly connected to the rear end face of the top seat.

[0016] In the pre-drying blade moisture stabilization device described above, it is preferred that the outer wall of each slider has a dovetail-shaped slider structure.

[0017] In the pre-drying blade moisture stabilization device described above, preferably, each of the housings has a through hole extending vertically through its inner surface.

[0018] This invention provides a device for stabilizing the moisture content of tobacco leaves before drying. The longitudinal position of the drum can be adjusted by a motor, and the horizontal position by a cylinder. This invention uses electronic control to automatically adjust the longitudinal and horizontal positions of the drum according to the material formula, replacing manual operation with mechanical means, saving time and effort, improving adjustment efficiency, and increasing the precision of mechanical operation. Protrusions are installed on the outer wall of the drum to increase the friction between the drum and the tobacco leaves, quickly guiding the leaves out of the measuring tube and ensuring pre-compactment within the tube. Simultaneously, the drum is a built-in electric drum that can rotate and has an adjustable rotation speed, guiding and crushing the leaves at the outlet of the measuring tube, ensuring the flatness of the tobacco leaf surface on the electronic scale, and ensuring consistent infrared absorption wavelength of the moisture meter, thus ensuring accurate feedback data, improving the accuracy and stability of the drum temperature judgment in the drying machine, thereby ensuring the pass rate of the moisture content at the outlet of the drying machine, and achieving better results in indicators such as the filling value, curl, and elasticity of the finished cigarette tobacco. Attached Figure Description

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will be further described below with reference to the accompanying drawings, wherein:

[0020] Figure 1 A schematic diagram of an embodiment of the pre-drying leaf filament moisture stabilization device provided by this utility model;

[0021] Figure 2 A schematic diagram of the unfolded shell structure of an embodiment of the pre-drying blade moisture stabilization device provided by this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1-fixed plate, 2-connecting plate, 3-base, 4-slide groove, 5-slider, 6-connecting block, 7-housing, 8-motor, 9-lead screw, 10-first type of bearing, 11-rectangular block, 12-connecting rod, 13-baffle, 14-second bearing, 15-built-in electric roller, 16-protrusion, 17-top seat, 18-cylinder. Detailed Implementation

[0023] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are in no way intended to limit the present disclosure or its application or use. The present disclosure may be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that the present disclosure will be thorough and complete, and will fully express the scope of the disclosure to those skilled in the art. It should be noted that, unless specifically stated otherwise, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as exemplary only and not as limiting.

[0024] The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Terms such as “including” or “contains” mean that the element preceding the term encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as “above” and “below” are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0025] In this disclosure, when a specific component is described as being located between a first component and a second component, an intermediary component may or may not be present between the specific component and the first or second component. When a specific component is described as connecting to other components, the specific component may be directly connected to the other components without having an intermediary component, or it may not be directly connected to the other components but may have an intermediary component.

[0026] All terms used in this disclosure (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this disclosure pertains, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, such as a dictionary, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0027] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, they should be considered part of the specification.

[0028] like Figure 1 and Figure 2As shown, the pre-drying leaf filament moisture stabilization device provided in this embodiment includes: a fixed plate 1, connecting plates 2 on the left and right sides of the fixed plate 1, a base 3 on the front side wall of each connecting plate 2, a sliding groove 4 on the inner side of each base 3, a slider 5 movably embedded in each sliding groove 4, a housing 7 connected to the inner side wall of each slider 5 by a connecting block 6, a motor 8 and a lead screw 9 respectively installed in each housing 7, a rectangular block 11 sleeved on each lead screw 9, a connecting rod 12 connected to each rectangular block 11, and each connecting rod 12 extending outside the housing 7, a baffle 13 connected to each connecting rod 12, a roller 15 between each baffle 13, a top seat 17 between the top ends of each housing 7, and a cylinder 18 between the fixed plate 1 and the top seat 17.

[0029] The roller 15 includes a built-in electric roller 15, which can rotate and the rotation speed is adjustable, so as to guide and crush the outlet of the limited tube and ensure the flatness of the blade surface on the electronic scale.

[0030] Furthermore, the motor 8 is detachably mounted on the inner bottom wall of the housing 7. The output end of the motor 8 is locked to the lead screw 9 via a coupling, and the top end of the lead screw 9 is fixedly connected to the inner top wall of the housing 7 via a first bearing 10. The outer wall of the lead screw 9 is threadedly connected to the first bearing 10. Specifically, the outer ring of each first bearing 10 is fixedly connected to the corresponding inner wall of the housing 7 via a bearing seat, and the inner ring of each first bearing 10 is interference-fitted with the corresponding outer wall of the lead screw 9. The first bearing 10 serves to fix the lead screw 9, facilitating its rotation.

[0031] Furthermore, the inner sidewalls of each of the baffles 13 are rotatably connected to the roller 15 via a second bearing 14.

[0032] Furthermore, the outer wall of the roller 15 is provided with multiple protrusions 16. These protrusions 16 increase the friction on the outer wall of the roller 15, enabling the roller 15 to quickly discharge material during rotation. In some embodiments of this invention, the protrusions 16 are arranged in a circumferentially spaced pattern on the outer wall of the roller 15. The roller surface on existing adjusting plates is relatively smooth, failing to generate friction with the blades and thus unable to quickly discharge material from the measuring tube, failing to achieve a guiding function. The protrusions 16 effectively solve this problem.

[0033] Furthermore, the cylinder 18 is detachably mounted on the front end face of the fixed plate 1, and the front side of the drive end of the cylinder 18 is fixedly connected to the rear end face of the top seat 17.

[0034] Furthermore, the outer wall of each slider 5 is shaped like a dovetail. By sliding the slider 5 within the base 3, it can support and stabilize the housing 7, making the housing 7 more stable when moving back and forth.

[0035] Furthermore, each of the housings 7 has a through hole extending vertically through its inner side, and the connecting rod 12 can slide up and down in the through hole.

[0036] During operation, the fixing plate 1 and the connecting plate 2 are installed on the outer wall of the limiting tube, and the roller 15 is placed at the outlet of the limiting tube. The motor 8 drives the lead screw 9 to rotate. The rotation of the lead screw 9 drives the rectangular block 11 to move the connecting rod 12, the baffle 13 and the roller 15 up or down, which can adjust the longitudinal position of the roller 15. The cylinder 18 drives the top seat 17 to move the housing 7, the connecting block 6, the slider 5, the connecting rod 12, the baffle 13 and the roller 15 forward or backward, which can adjust the horizontal position of the roller 15.

[0037] The moisture stabilizing device for pre-drying tobacco leaves provided in this embodiment of the invention allows for adjustment of the longitudinal position of the drum via a motor and the horizontal position via a cylinder. This invention employs electronic control to automatically adjust the longitudinal and horizontal positions of the drum according to the material formula, replacing manual operation with mechanical means, saving time and effort, improving adjustment efficiency, and offering higher precision. Protrusions are installed on the outer wall of the drum to increase friction when the drum contacts the tobacco leaves, quickly guiding the leaves out of the measuring tube and ensuring pre-compactment within the tube. Simultaneously, the drum is a built-in electric drum that can rotate and has an adjustable rotation speed, guiding and crushing the leaves at the measuring tube outlet, ensuring the flatness of the tobacco leaf surface on the electronic scale, and ensuring consistent infrared absorption wavelength of the moisture meter, thus ensuring accurate feedback data, improving the accuracy and stability of the drum temperature judgment in the tobacco drying machine, thereby guaranteeing the pass rate of the moisture content at the outlet of the tobacco drying machine, and achieving better results in indicators such as the filling value, curl, and elasticity of the finished cigarette tobacco.

[0038] The embodiments of this disclosure have now been described in detail. To avoid obscuring the concept of this disclosure, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0039] While specific embodiments of this disclosure have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of this disclosure. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this disclosure. The scope of this disclosure is defined by the appended claims.

Claims

1. A device for stabilizing the moisture content of leaf fibers before drying, characterized in that, include: A fixed plate is provided with connecting plates on its left and right sides. A base is provided on the front side wall of each connecting plate. A sliding groove is provided on the inner side of each base. A slider is movably embedded in each sliding groove. A housing is connected to the inner side wall of each slider through a connecting block. A motor and a lead screw are respectively provided in each housing. A rectangular block is sleeved on each lead screw. A connecting rod is connected to each rectangular block and extends to the outside of the housing. A baffle is connected to each connecting rod. A roller is provided between each baffle. A top seat is provided between the top ends of each housing. A cylinder is provided between the fixed plate and the top seat.

2. The pre-drying leaf fiber moisture stabilization device according to claim 1, characterized in that, The motor is detachably mounted on the inner bottom wall of the housing. The output end of the motor is locked to the lead screw via a coupling. The top end of the lead screw is fixedly connected to the inner top wall of the housing via a first bearing. Furthermore, the outer wall of the lead screw is threadedly connected to the first bearing.

3. The pre-drying leaf fiber moisture stabilization device according to claim 2, characterized in that, The outer ring of each of the first bearings is fixedly connected to the inner wall of the corresponding housing through a bearing seat, and the inner ring of each of the first bearings is interference-fitted with the outer wall of the corresponding lead screw.

4. The pre-drying leaf fiber moisture stabilization device according to claim 1, characterized in that, The roller includes a built-in electric roller.

5. The pre-drying leaf fiber moisture stabilization device according to claim 1, characterized in that, The inner sidewalls of each baffle are rotatably connected to the roller via a second bearing.

6. The pre-drying leaf fiber moisture stabilization device according to claim 1, characterized in that, The outer wall of the roller is provided with multiple protrusions.

7. The pre-drying leaf fiber moisture stabilization device according to claim 6, characterized in that, The protrusions are arranged in a circumferentially spaced manner on the outer wall of the roller.

8. The pre-drying leaf fiber moisture stabilization device according to claim 1, characterized in that, The cylinder is detachably mounted on the front end face of the fixed plate, and the front side of the driving end of the cylinder is fixedly connected to the rear end face of the top seat.

9. The pre-drying leaf fiber moisture stabilization device according to claim 1, characterized in that, The outer wall of each slider has a dovetail-shaped slider structure.

10. The pre-drying leaf fiber moisture stabilization device according to claim 1, characterized in that, Each of the aforementioned housings has a through hole extending vertically through its inner surface.

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