A screening device for tobacco redrying

Abstract

The patent discloses a screening device for tobacco redrying, which comprises a feeding assembly, an automatic screening assembly and a dehumidifying assembly. The automatic screening assembly is arranged in the feeding assembly and is used for automatically screening tobacco materials. The dehumidifying assembly is arranged at the lower part of the automatic screening assembly and is used for containing the screened tobacco materials. A dehumidifying box is arranged in the dehumidifying assembly, which is used for absorbing the humid air in the screening device and converting it into liquid water, so that the screened tobacco materials can be kept dry. The screening device for tobacco redrying can realize continuous and large-batch screening of tobacco, and can keep the tobacco dry during long-term use of the screening device, thereby avoiding problems such as mildewing, caking and excessive moisture.

Description

Technical Field

[0001] This patent belongs to the field of tobacco re-drying technology, specifically relating to a sieving device for tobacco re-drying. Background Technology

[0002] Tobacco agriculture is a specialized agricultural production activity centered around tobacco as an economic crop. It focuses on cultivating and harvesting tobacco leaves that meet industrial processing standards and is the source link of the tobacco industry chain. Its production process is highly specialized, requiring key steps such as variety selection, seedling cultivation, field transplanting, field management, mature harvesting, and processing. It also has strict requirements for climate and soil conditions.

[0003] Tobacco re-drying refers to the process of baking pre-processed tobacco leaves again, primarily to adjust the moisture content for safe storage. A sieving device for tobacco re-drying is a commonly used device. For example, Chinese patent document CN212468827U discloses a sieving device for tobacco re-drying. Through a motor, cam, return spring, placement tray, and screen on the vehicle body, the device can more quickly and effectively sieve tobacco. The motor drives the cam to rotate, causing the placement tray to move up and down, thus turning the tobacco within the tray and achieving the sieving purpose. This effectively avoids clogging of the screen holes that occurs in traditional sieving processes, significantly reducing the workload for operators and greatly minimizing downtime for cleaning. However, it still has the following drawbacks: When workers use the tobacco re-drying screening device to screen tobacco, the device may be unable to meet the continuous and large-scale screening needs in tobacco re-drying production, resulting in reduced screening efficiency and accuracy; at the same time, when the tobacco re-drying screening device is used for screening tobacco for a long time, a humid environment may occur, causing the tobacco to become moldy, clump, or have excessive moisture, which will affect the continuous tobacco re-drying, storage, and final product quality.

[0004] Therefore, there is an urgent need to develop a new screening device for tobacco re-drying in order to solve the problems of existing screening devices for tobacco re-drying being unable to screen continuously and in large quantities, and being prone to mold, clumping or excessive moisture in tobacco due to humid environments during long-term use. Utility Model Content

[0005] The purpose of this patent is to provide a sieving device for tobacco re-drying, so as to realize continuous and large-scale sieving of tobacco. At the same time, when using the tobacco re-drying sieving device for a long time, it can still keep the tobacco dry and avoid problems such as mold, clumping or excessive moisture.

[0006] To solve the above-mentioned technical problems, this patent adopts the following technical solution:

[0007] A screening device for tobacco re-drying includes a feeding assembly, an automatic screening assembly, and a dehumidification assembly.

[0008] The automatic screening component is located inside the feeding component and is used to automatically screen tobacco materials.

[0009] The dehumidification component is located at the bottom of the automatic screening component and is used to hold the tobacco material after automatic screening. The dehumidification component is equipped with a dehumidification box, which is used to absorb the humid air in the tobacco re-drying screening device and convert it into liquid water so that the tobacco material after automatic screening remains dry.

[0010] Furthermore, the feeding assembly includes a screening box and a feed inlet.

[0011] Furthermore, the screening box has a hollow interior, with a first square groove at the top, a second square groove on one side, and a third square groove on the front.

[0012] Furthermore, the feed inlet is located in the first square trough to allow tobacco materials to be fed in.

[0013] Furthermore, the automatic screening component is located inside the screening box and protrudes from the second square groove; the automatic screening component includes a transmission component and a screening component; the transmission component is connected to the screening component, and the transmission component drives the screening component to achieve reciprocating motion.

[0014] Furthermore, the transmission components include a connecting plate, a turntable, and a servo motor.

[0015] Furthermore, the connecting plate is provided with through holes, including a first through hole and a second through hole.

[0016] Furthermore, the turntable includes a first turntable and a second turntable connected by a rotating belt. The first turntable is connected to a first through hole via a first transmission rod, and the second turntable is connected to a second through hole via a second transmission rod.

[0017] Furthermore, the servo motor is connected to the first transmission rod. By turning on the servo motor, the first turntable can drive the second turntable to perform circular motion.

[0018] Furthermore, the transmission components also include a rotating rod.

[0019] Furthermore, one end of the rotating rod engages with the third through hole on the upper part of the second turntable via the third transmission rod, enabling the rotating rod to reciprocate according to the circular motion of the second turntable.

[0020] Furthermore, the screening components include a chute frame, a slider, and a screen.

[0021] Furthermore, one end of the slide frame is fixedly connected to the connecting plate; slide grooves are provided on the inner walls of both sides of the slide frame.

[0022] Furthermore, the slider is set on the outer walls of both sides of the screen and is detachably installed in the chute. The other end of the rotating rod is connected to the screen through the cooperation of the fourth transmission rod and the fourth through hole. When the rotating rod rotates, it drives the screen to reciprocate in the chute frame through the slider, thereby realizing the screening of tobacco materials.

[0023] Furthermore, the dehumidification component is located in a third-party compartment; the dehumidification component includes a pull-out part and a dehumidification box.

[0024] Furthermore, the pull-out part is hollow inside to accommodate the tobacco material after it has been screened by the automatic screening component.

[0025] Furthermore, the dehumidification box is located on the inner wall of the pull-out component and is used to absorb moisture from the sieved tobacco material.

[0026] Furthermore, the dehumidifier box includes a box body, a mesh cover, and a receiving cavity.

[0027] Furthermore, the top of the box has a first opening, and the strainer cover is detachably mounted on the first opening; the front of the box has a second opening, and the receiving cavity is detachably mounted inside the second opening.

[0028] Furthermore, dehumidifier boxes also include dehumidifier bags and dehumidifier trays.

[0029] Furthermore, the dehumidifying bag is detachably mounted on the drain plate, which is detachably mounted inside the receiving cavity.

[0030] Furthermore, the filter plate has pores for filtering the liquid components absorbed by the dehumidifying bag and containing them through the receiving cavity.

[0031] Furthermore, the screening device for tobacco re-drying also includes support components.

[0032] Furthermore, the support is located at the bottom of the feeding assembly to support the screening device for tobacco re-drying.

[0033] Compared with existing technologies, this patent has the following beneficial technical effects:

[0034] (1) The sieving device for tobacco re-drying provided by this patent can realize the automatic sieving of tobacco materials through the cooperation of transmission components and sieving components. Furthermore, through the cooperation of screen and slider, different screen sizes can be replaced according to actual needs to realize the automatic sieving of tobacco materials of different particle sizes, thereby improving the sieving efficiency and accuracy. This reduces the frequency and intensity of manual intervention, making it suitable for the continuous and large-scale sieving needs in tobacco re-drying production. It reduces the physical exertion and workload of operators, improves the ease of operation, and avoids material accumulation caused by uneven force and slow speed in manual sieving. This improves the sieving efficiency and accuracy and provides a guarantee for the quality of the final product.

[0035] (2) By setting a dehumidification component at the bottom of the automatic screening component, the dehumidification component is equipped with a dehumidification box and a receiving cavity that can be detached inside. The dehumidification bag in the dehumidification box can be replaced as needed, and the water in the receiving cavity can be cleaned in time. This achieves the effect of ensuring that the tobacco is not easily affected by moisture and deterioration during the screening process, ensuring the dryness of the tobacco material, and thus avoiding problems such as mold, clumping or excessive moisture in the tobacco caused by a humid environment. It ensures that the tobacco always maintains the dryness required for re-drying during the screening process, providing a stable guarantee for the subsequent tobacco re-drying, storage and final product quality. In addition, the dehumidification bag can continuously absorb the moisture in the screening device for tobacco re-drying, avoiding the impact of moisture accumulation on screening efficiency or tobacco quality, adapting to the continuous and high-efficiency operation requirements in tobacco re-drying production, and reducing the production capacity loss caused by equipment downtime maintenance. Attached Figure Description

[0036] The above content of this patent and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0037] Figure 1 This is a schematic diagram of the overall structure of the tobacco re-drying sieving device of this patent.

[0038] Figure 2 This is a three-dimensional exploded view of the feeding component, automatic screening component, and dehumidification component working together in the tobacco re-drying screening device of this patent.

[0039] Figure 3 This is a three-dimensional exploded view of the automatic screening component in the tobacco re-drying screening device of this patent.

[0040] Figure 4 This is a three-dimensional exploded view of the connecting plate in the automatic screening component of this patent;

[0041] Figure 5 This is a three-dimensional exploded view of the dehumidification component in the tobacco re-drying sieving device of this patent.

[0042] The reference numerals in the attached figures are explained as follows:

[0043] Screening device for tobacco re-drying: 1;

[0044] Feed assembly: 100;

[0045] Screening box: 110;

[0046] Feed inlet: 120;

[0047] Feed inlet cover: 130;

[0048] Automatic screening component: 200;

[0049] Transmission component: 210;

[0050] Connector plate: 211;

[0051] First through hole: 212a;

[0052] Second through hole: 212b;

[0053] First transmission rod: 213a;

[0054] Second transmission rod: 213b;

[0055] First turntable: 214a;

[0056] Second turntable: 214b;

[0057] Third through hole: 215;

[0058] Rotor: 216;

[0059] Fourth through hole: 217a;

[0060] Fifth through hole: 217b;

[0061] Third transmission rod: 218a;

[0062] Fourth transmission rod: 218b;

[0063] Servo motor: 219;

[0064] Transmission component housing: 220;

[0065] Slide frame: 230;

[0066] Slide: 231;

[0067] Slider: 240;

[0068] Screen size: 250;

[0069] Dehumidification unit: 300;

[0070] Pull-out component: 310;

[0071] Dehumidifier box: 320;

[0072] Box body: 321;

[0073] Strainer cover: 322;

[0074] Dehumidifier bag: 323;

[0075] Leaky plate: 324;

[0076] Reception cavity: 325;

[0077] Support component: 400. Detailed Implementation

[0078] The detailed features and advantages of this application are described below in the specific embodiments. The content of this description is sufficient to enable any person skilled in the art to understand the technical content of this application and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this application.

[0079] In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined to have the following meanings:

[0080] All figures used to represent component amounts, properties (e.g., weight-average molecular weight), reaction conditions, etc., should be considered to be modified in all cases by the terms "within the unavoidable margin of error" or "approximately". Therefore, the numerical values ​​presented herein are approximate and may vary depending on the desired properties sought to be obtained by this patent. The principle of equivalents, which is applied to a minimum and not intended to limit the scope of the claims, should be applied, for example, each value should be interpreted at least according to the reported significant digits and by applying conventional rounding techniques.

[0081] All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.

[0082] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0083] The "range" disclosed herein is defined by a lower limit and an upper limit. A given range is defined by selecting a lower limit and an upper limit, which define the boundaries of a particular range. Ranges defined in this way can include or exclude endpoints and can be arbitrarily combined; that is, any lower limit can be combined with any upper limit to form a range. For example, if ranges of 60-120 and 80-110 are listed for a specific parameter, it is expected that ranges of 60-110 and 80-120 are also expected. Furthermore, if minimum range values ​​of 1 and 2 are listed, and if maximum range values ​​of 3, 4, and 5 are listed, then the following ranges are all expected: 1-3, 1-4, 1-5, 2-3, 2-4, and 2-5. In this application, unless otherwise stated, the numerical range "ab" represents a shortened representation of any combination of real numbers between a and b, where a and b are real numbers. For example, the numerical range "0-5" indicates that all real numbers between "0-5" have been listed in this article; "0-5" is simply a shortened representation of these numerical combinations. Furthermore, when a parameter is stated as an integer ≥2, it is equivalent to disclosing that the parameter is, for example, an integer such as 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, etc.

[0084] Unless otherwise specified, all embodiments and preferred embodiments mentioned herein can be combined to form new technical solutions.

[0085] Unless otherwise specified, all the technical features and preferred features mentioned herein can be combined to form new technical solutions.

[0086] Unless otherwise specified, all steps mentioned herein may be performed sequentially or randomly, but are preferably performed sequentially. For example, the method includes steps (a) and (b), indicating that the method may include steps (a) and (b) performed sequentially, or it may include steps (b) and (a) performed sequentially. For example, the mention that the method may also include step (c) indicates that step (c) may be added to the method in any order; for example, the method may include steps (a), (b), and (c), or it may include steps (a), (c), and (b), or it may include steps (c), (a), and (b), etc.

[0087] Unless otherwise specified, the terms "comprising" and "including" as used herein can be open-ended or closed-ended. For example, "comprising" and "including" may mean that other components not listed may also be included, or that only the listed components may be included.

[0088] In the description of this article, it should be noted that, unless otherwise stated, "above" and "below" include the number itself, and "several" in "one or more" means two or more.

[0089] In this description, unless otherwise stated, the term "or" is inclusive. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, the condition "A or B" is satisfied by any of the following conditions: A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0090] Unless otherwise specified, percentages (%) in this document refer to percentages by mass relative to the composition.

[0091] Unless otherwise stated herein, the sum of the contents of the components in the composition is 100%.

[0092] In this document, unless otherwise stated, “combination of” means a multi-component mixture of the elements, such as two, three, four, and up to the maximum possible multi-component mixture.

[0093] Unless otherwise specified, the term "a" as used in this specification means "at least one".

[0094] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this patent, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0095] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this patent belongs. The terminology used herein in the specification of this patent is for the purpose of describing particular embodiments only and is not intended to be limiting of this patent.

[0096] To make the objectives, technical solutions, and advantages of this patent clearer, the embodiments of this patent will be described in further detail below with reference to the accompanying drawings. Unless otherwise specified, the experimental methods described in the embodiments of this patent are conventional methods, and the materials and reagents used in the following embodiments are commercially available unless otherwise specified.

[0097] like Figure 1As shown, this patent provides a sieving device for tobacco re-drying, including a feeding component 100, an automatic sieving component 200, and a dehumidification component 300; the automatic sieving component 200 is disposed inside the feeding component 100 and is used for automatically sieving tobacco; the dehumidification component 300 is disposed at the lower part of the automatic sieving component 200 and is used to dehumidify the automatically sieving tobacco.

[0098] like Figure 2 As shown, the feeding assembly 100 includes a screening box 110, a feed inlet 120, and a feed inlet cover 130.

[0099] Specifically, the screening box 110 is a hollow cubic structure. The feed inlet 120 is fixedly installed on the upper part of the screening box 110, and the feed inlet cover 130 is installed on the upper part of the feed inlet 120 to keep the interior of the feeding assembly 100 clean when the tobacco re-drying screening device is not in operation. In some other embodiments, the screening box 110 may also be a cuboid, a trapezoid, or other symmetrical regular structure. In other embodiments, the feed inlet 120 may also be detachably connected to the upper part of the screening box 110 for easy removal for cleaning.

[0100] More specifically, the top of the screening box 110 is provided with a first square groove, one side of the screening box 110 is provided with a second square groove, and the front of the screening box 110 is provided with a third square groove.

[0101] More specifically, the feed inlet 120 is located in the first square groove to fix the feed inlet 120.

[0102] More specifically, the feed inlet 120 is a stepped funnel structure, which facilitates the feeding of tobacco to be screened.

[0103] Specifically, the automatic screening component 200 is located inside the feeding component 100 and protrudes from the feeding component 100, that is, the automatic screening component 200 protrudes from the second square trough.

[0104] More specifically, the automatic screening assembly 200 includes a transmission component 210 and a transmission component housing 220; the transmission component 210 protrudes from the feeding assembly 100, and the transmission component housing 220 is fitted onto the transmission component 210 to protect the transmission component 210 from damage.

[0105] More specifically, the transmission component housing 220 is a transparent cubic structure that can be detachably fitted onto the transmission component 210. This allows for easy observation of the working status of the transmission component 210, or timely disassembly of the transmission component housing 220 to facilitate repair or protection of the transmission component 210 in the event of a malfunction.

[0106] like Figure 3As shown, the automatic screening assembly 200 also includes a chute frame 230, a slider 240, and a screen 250.

[0107] Specifically, one side of the slide frame 230 is fixedly connected to the transmission component 210, and slide grooves 231 are provided on the inner walls of both sides of the slide frame 230. The slide grooves 231 are arranged axially parallel to the transmission component 210.

[0108] More specifically, the slider 240 is fixedly mounted on the outer walls of both sides of the screen 250. Through the sliding connection between the slider 240 and the chute 231, the screen 250 can slide along the axial direction of the chute frame 230 inside the chute frame 230.

[0109] More specifically, the mesh size of the screen 250 is 5 mm × 5 mm. In some other embodiments, the mesh size of the screen 250 can be adjusted according to actual needs, for example, the mesh size can be 4 mm × 5 mm. In still other embodiments, the sliders 240 are detachably mounted on the outer walls of both sides of the screen 250, allowing for automatic sieving of tobacco with different mesh sizes by replacing the screen 250.

[0110] like Figure 4 As shown, the transmission component 210 includes a connecting plate 211.

[0111] Specifically, the connecting plate 211 is provided with symmetrical through holes, including a first through hole 212a and a second through hole 212b, so that the symmetrically arranged first transmission rod 213a passes through the first through hole 212a and the second transmission rod 213b passes through the second through hole 212b.

[0112] Specifically, the transmission component 210 also includes a turntable, which includes a first turntable 214a and a second turntable 214b; a first transmission rod 213a passes through a first through hole 212a to connect the first turntable 214a to the connecting plate 211; a second transmission rod 213b passes through a second through hole 212b to connect the second turntable 214b to the connecting plate 211; the first turntable 214a and the second turntable 214b are connected by a belt so that the first turntable 214a and the second turntable 214b can rotate simultaneously.

[0113] More specifically, the diameter of the second turntable 214b is larger than the diameter of the first turntable 214a, wherein the diameter of the second turntable 214b is 120 mm and the diameter of the first turntable 214a is 80 mm, and the second turntable 214b is provided with a third through hole 215. In some other specific embodiments,

[0114] Specifically, the transmission component 210 also includes a rotating rod 216.

[0115] More specifically, one end of the rotating rod 216 is located at the top of the second turntable 214b, and the two ends of the rotating rod 216 are provided with a fourth through hole 217a and a fifth through hole 217b. The fourth through hole 217a is located at the end near the turntable, and the third transmission rod 218a can pass through the fourth through hole 217a and fix one end of the rotating rod 216 above the second turntable 214b, so that the second turntable 214b drives the rotating rod 216 to rotate when it rotates.

[0116] More specifically, the other end of the rotating rod 216 is located at the top of the screen 250. The fifth through hole 217b on the rotating rod 216 is located near the end of the screen 250. The fourth transmission rod 218b can pass through the fifth through hole 217b and fix the other end of the rotating rod 216 above the screen 250, so that when the second turntable 214b rotates, it drives the rotating rod 216 to rotate. At the same time, the rotating rod 216 drives the screen 250 to reciprocate along the axis of the slide frame 230 via the slider 240.

[0117] Specifically, the transmission component 210 also includes a servo motor 219.

[0118] More specifically, the servo motor 219 is fixedly mounted on the bottom of the connecting plate 211. The servo motor 219 is an AC servo motor with a power of 0.75~1.50kW, a rated speed of 1400~1500 rpm / min, and an IP54 protection rating. Its output shaft diameter is 14 mm. The servo motor 219 is fixedly mounted on the first transmission rod 213a at the bottom of the connecting plate 211 via the output shaft. By activating the power switch of the servo motor 219, the servo motor 219 drives the first turntable 214a to rotate synchronously via the first transmission rod 213a, and then drives the second turntable 214b to rotate synchronously via the belt. This causes the second transmission rod 213b to make a circular motion around the center of the second turntable 214b, and the rotation of the second turntable 214b drives the rotating rod 216 to rotate. The rotating rod 216 converts the circular motion of the second turntable 214b into a pushing and pulling action on the screen 250. That is, the rotation of the rotating rod 216 causes the screen 250 connected to the rotating rod 216 to reciprocate along the axial direction of the slide frame 230 via the slider 240, thereby realizing the automatic screening of tobacco materials on the screen 250 of the automatic screening component 200.

[0119] like Figure 2 and Figure 5 As shown, the dehumidification component 300 is installed in the third-party tank of the screening box 110 to receive the screened tobacco material and dehumidify the screened tobacco material to keep it dry.

[0120] Specifically, the dehumidification component 300 includes a pull-out component 310 and a dehumidification box 320; the pull-out component 310 is a hollow internal structure used to hold tobacco material after being screened by the automatic screening component; the dehumidification box 320 is disposed on the inner wall of the pull-out component 310 and is used to dry the screened tobacco material and absorb excess moisture.

[0121] More specifically, the front of the pull-out component 310 is fixedly connected with a handle, and by pulling the handle, the pull-out component 310 can be pushed and pulled in the third slot of the screening box 110.

[0122] Specifically, the dehumidifier box 320 includes a box body 321, which is rectangular in shape. The top of the box body 321 has a first opening, and the front has a second opening.

[0123] More specifically, a strainer cover 322, a dehumidifying bag 323, and a strainer plate 324 are detachably provided from top to bottom inside the first opening of the box body 321.

[0124] More specifically, the mesh cover 322 is detachably mounted on the top of the box body 321 to isolate the dehumidifying bag 323 from the tobacco material entering the pull-out component 310; the dehumidifying bag 323 is detachably mounted between the mesh cover 322 and the strainer plate 324, and the dehumidifying bag 323 uses a composite desiccant of calcium chloride and montmorillonite to absorb excess moisture in the tobacco material.

[0125] More specifically, a receiving cavity 325 is provided in the second opening of the box body 321 to receive the dehumidifying bag 323 and the drain plate 324, and at the same time, to receive the liquid components absorbed by the dehumidifying bag 323.

[0126] Specifically, the bottom of the screening box 110 is also equipped with multiple support components 400, which consist of four components. Support rods are fixedly connected between the four support components to support the screening device for tobacco re-drying and to provide stability.

[0127] More specifically, the bottom of the support 400 is also fixedly connected with an anti-slip pad to prevent the tobacco re-drying screening device from tipping over.

[0128] In summary, the specific working principle of the screening device for tobacco re-drying is as follows:

[0129] (1) The staff first opens the feed port cover 130 and puts the tobacco into the screening box 110 through the feed port 120, so that the tobacco automatically falls onto the screen 250 in the automatic screening component 200.

[0130] (2) By turning on the power switch of the servo motor 219, the servo motor 219 drives the first turntable 214a to rotate synchronously through the first transmission rod 213a, and then drives the second turntable 214b to rotate synchronously through the belt, so that the second transmission rod 213b makes a circular motion around the center of the second turntable 214b, and drives the rotating rod 216 to rotate under the rotation of the second turntable 214b, so that the rotating rod 216 converts the circular motion of the second turntable 214b into a pushing and pulling action on the screen 250. That is, the rotation of the rotating rod 216 causes the screen 250 connected to the rotating rod 216 to reciprocate along the axial direction of the slide frame 230 through the slider 240, thereby realizing the automatic screening of tobacco material on the screen 250 of the automatic screening component 200. This achieves the effect of quickly separating tobacco of different particle sizes, improving screening efficiency and accuracy, thereby reducing the frequency and intensity of manual intervention. It is suitable for the continuous and large-scale screening needs in tobacco re-drying production, reduces the physical exertion and workload of operators, improves the ease of operation, and avoids material accumulation caused by uneven force and slow speed in manual screening, thus improving screening efficiency and accuracy and ensuring the quality of the final product.

[0131] (3) The staff further places the dehumidifying bag 323 on the upper part of the sluice plate 324 inside the dehumidifying box 320, and covers it with the mesh cover 322. When the tobacco re-drying sieving device is working, the humid air in the sieving box 110 enters the dehumidifying box 320 through the mesh cover 322. By disengaging from the dehumidifying bag 323, the dehumidifying bag 323 absorbs the moisture in the air, converts the moisture into liquid water, and drops it into the receiving cavity 325 of the dehumidifying box 320 through the gaps in the sluice plate 324. At the same time, the tobacco material after being sieved by the automatic sieving component 200 enters the pull-out component 310, and undergoes secondary moisture adsorption through the dehumidifying box 320, so that the sieved tobacco material remains dry.

[0132] (4) When the dehumidifying bag 323 is saturated with moisture, the dehumidifying bag can be replaced by pulling open the pull-out part 310 and opening the mesh cover 322. When there is a lot of liquid water in the receiving cavity 325, the receiving cavity 325 can also be directly pulled out, the water in the receiving cavity 325 can be poured out, and it can be cleaned and put back in its original position. This achieves the effect of ensuring that the tobacco is not easily affected by moisture and deterioration during the screening process and ensuring the dryness of the tobacco material. This avoids problems such as mold, clumping or excessive moisture in the tobacco caused by a humid environment. It ensures that the tobacco always maintains the dryness required for re-drying during the screening process, providing a stable guarantee for the subsequent tobacco re-drying, storage and final product quality. In this way, the dehumidifying bag 323 can continuously absorb the moisture in the screening device for tobacco re-drying, avoiding the impact of moisture accumulation on screening efficiency or tobacco quality. It is suitable for the continuous and high-efficiency operation requirements in tobacco re-drying production and reduces the production capacity loss caused by equipment downtime maintenance.

[0133] Therefore, it can be concluded that the tobacco re-drying screening device provided by this patent, through the cooperation of the transmission component and the screening component, can realize the automatic screening of tobacco materials. Furthermore, by cooperating with the screen and the slider, different screen sizes can be replaced according to actual needs to achieve automatic screening of tobacco materials of different particle sizes, improving screening efficiency and accuracy. This reduces the frequency and intensity of manual intervention, making it suitable for the continuous, large-scale screening needs in tobacco re-drying production. It reduces the physical exertion and workload of operators, improves operational convenience, and avoids material accumulation caused by uneven force and slow speed in manual screening, thus improving screening efficiency and accuracy and ensuring the quality of the final product. Moreover, by setting a dehumidification component at the bottom of the automatic screening assembly, the dehumidification component has a detachable dehumidification box and a receiving cavity, allowing for the replacement of the dehumidification bag in the dehumidification box as needed and timely cleaning of accumulated water in the receiving cavity. This ensures that tobacco is not easily affected by moisture and deteriorates during the screening process, and maintains the dryness of the tobacco material. It also prevents problems such as mold, clumping, or excessive moisture caused by a humid environment, ensuring that the tobacco remains dry enough to meet the requirements of re-drying processing throughout the screening process. This provides a stable guarantee for the subsequent re-drying, storage, and final product quality. Furthermore, the dehumidifying bag can continuously absorb moisture from the screening device used for tobacco re-drying, preventing moisture accumulation from affecting screening efficiency or tobacco quality. It is suitable for the continuous and high-efficiency operation requirements in tobacco re-drying production, and reduces production capacity loss caused by equipment downtime for maintenance.

[0134] In the foregoing description of exemplary embodiments / specific implementations of this patent, various features of this patent are sometimes combined in a single embodiment / specific implementation or its figures and description, with the aim of simplifying the disclosure and aiding in the understanding of one or more of the various patent aspects. However, unless expressly stated otherwise or in obvious technical contradiction or exclusion, the method of description of this patent should not be construed as reflecting an intention that the claimed patentable features are more numerous than expressly stated in each claim. Rather, the patentable aspects reflected in the claims lie in not all the features of a single foregoing disclosed embodiment / specific implementation. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, each claim existing independently as a separate embodiment / specific implementation of this patent.

[0135] The terms and expressions used in this specification are for illustrative purposes and not for limitation. Their use is not intended to exclude any equivalents of the shown and described features or portions thereof, but rather to facilitate the understanding that various modifications may be possible within the scope of this patent claim. Therefore, it should be understood that while this patent has been specifically disclosed through preferred embodiments, exemplary embodiments, and optional features, variations or modifications of the concepts disclosed herein may be adopted by those skilled in the art, and such variations and modifications are therefore considered to be within the scope of this patent as defined by the appended claims. The specific embodiments given in this specification are examples of useful embodiments of this patent, and it will be apparent to those skilled in the art that this patent can be implemented using many variations of the devices, device components, and method steps disclosed herein.

[0136] The foregoing description of specific embodiments fully discloses the general features of this patent, enabling others to easily modify and / or adapt such embodiments for various applications by applying knowledge within the scope of the art, without excessive experimentation or deviation from the general concept of this patent. Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.

[0137] Furthermore, the scope of this patent should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents.

Claims

1. A sieving device for tobacco re-drying, characterized in that, The tobacco re-drying screening device includes a feeding assembly, an automatic screening assembly, and a dehumidification assembly; The automatic screening component is located inside the feeding component and is used to achieve automatic screening of tobacco materials; The dehumidification component is located at the lower part of the automatic screening component and is used to contain the tobacco material after automatic screening. The dehumidification component is equipped with a dehumidification box, which is used to absorb the humid air in the tobacco re-drying screening device and convert it into liquid water so as to keep the tobacco material after automatic screening dry.

2. The sieving device for tobacco re-drying according to claim 1, characterized in that, The feeding assembly includes a screening box and a feed inlet; The screening box has a hollow interior. A first square groove is formed at the top of the screening box, a second square groove is formed on one side of the screening box, and a third square groove is formed on the front of the screening box. The feed inlet is located in the first square trough and is used to feed tobacco materials.

3. The sieving device for tobacco re-drying according to claim 2, characterized in that, The automatic screening component is disposed inside the screening box and protrudes from the second square groove; the automatic screening component includes a transmission component and a screening component; the transmission component is connected to the screening component, and drives the screening component to achieve reciprocating motion through the transmission component.

4. The sieving device for tobacco re-drying according to claim 3, characterized in that, The transmission components include a connecting plate, a turntable, and a servo motor; The connecting plate is provided with through holes, including a first through hole and a second through hole; The turntable includes a first turntable and a second turntable connected by a rotating belt. The first turntable is connected to the first through hole via a first transmission rod, and the second turntable is connected to the second through hole via a second transmission rod. The servo motor is connected to the first transmission rod. By turning on the servo motor, the first turntable can drive the second turntable to perform circular motion.

5. The sieving device for tobacco re-drying according to claim 4, characterized in that, The transmission component also includes a rotating rod; One end of the rotating rod engages with the third through hole on the upper part of the second turntable via a third transmission rod, so that the rotating rod reciprocates according to the circular motion of the second turntable.

6. The sieving device for tobacco re-drying according to claim 5, characterized in that, The screening component includes a chute frame, a slider, and a screen. One end of the slide frame is fixedly connected to the connecting plate; slide grooves are provided on the inner walls of both sides of the slide frame; The slider is disposed on the outer walls of both sides of the screen and is detachably disposed in the chute. The other end of the rotating rod is connected to the screen through the cooperation of the fourth transmission rod and the fourth through hole. When the rotating rod rotates, it drives the screen to reciprocate within the chute frame through the slider, thereby realizing the screening of the tobacco material.

7. The sieving device for tobacco re-drying according to claim 2, characterized in that, The dehumidification component is disposed within the third-party slot; the dehumidification component includes a pull-out component and a dehumidification box; The pull-out component is hollow inside, and is used to accommodate tobacco material after being screened by the automatic screening component. The dehumidifier box is located on the inner wall of the pull-out component and is used to absorb moisture from the sieved tobacco material.

8. The sieving device for tobacco re-drying according to claim 7, characterized in that, The dehumidifier box includes a box body, a mesh cover, and a receiving cavity; The top of the box has a first opening, and the strainer cover is detachably disposed on the first opening; the front of the box has a second opening, and the receiving cavity is detachably disposed in the second opening.

9. The sieving device for tobacco re-drying according to claim 8, characterized in that, The dehumidifier box also includes a dehumidifier bag and a drain plate; The dehumidifying bag is detachably mounted on the drain plate, and the drain plate is detachably mounted inside the receiving cavity; The filter plate has holes for filtering the liquid components absorbed by the dehumidifying bag and containing them through the receiving cavity.

10. The sieving device for tobacco re-drying according to claim 1, characterized in that, The tobacco re-drying sieving device also includes a support component; The support member is located at the bottom of the feeding assembly and is used to support the tobacco re-drying screening device.

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