A cigar tobacco drying device
By employing a temperature and humidity control system and a heat insulation structure during the cigar tobacco drying process, the problem of unstable temperature and humidity in traditional drying methods has been solved, achieving uniformity and stability in tobacco drying and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN TOBACCO CORP NANPING CORP
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-26
Smart Images

Figure CN224268267U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco processing technology, and in particular to a device for drying cigar tobacco leaves. Background Technology
[0002] The drying of cigar tobacco leaves is a crucial step in cigar production, directly impacting the taste and quality of the cigars. Traditional drying methods primarily involve natural air drying, which is highly susceptible to environmental influences and struggles to maintain stable temperature and humidity, leading to uneven drying and inconsistent quality. Furthermore, natural air drying is time-consuming and inefficient, unsuitable for large-scale production. The drying period is critical for the formation of tobacco leaf quality, particularly the appearance of the wrapper, directly affecting tobacco farmers' income, the commercial value of the tobacco leaves, and their industrial applications. During cigar tobacco leaf drying, the leaves, deprived of external moisture and nutrients, rely solely on their own respiration to gradually dehydrate, dry, and decompose organic matter. Water is essential for physiological activities within the plant, and its amount influences the direction of physiological processes and metabolism. Fresh cigar filler leaves typically contain around 85% water, while the wrapper contains significantly more, exceeding 85% and sometimes reaching 93%, decreasing to approximately 18% by the end of drying. Water metabolism is the fundamental prerequisite and condition for all physiological metabolism, directly affecting the balance between carbon and nitrogen metabolism. The entire drying process involves hanging tobacco leaves or plants in a dedicated drying room, where they gradually turn yellow and brown under conditions without direct sunlight.
[0003] Therefore, developing a cigar tobacco drying device that can effectively control temperature and humidity is of great practical significance. Utility Model Content
[0004] To address the shortcomings of the aforementioned background technology, this utility model proposes a device for drying cigar tobacco leaves, solving the problem that the temperature and humidity of naturally dried tobacco leaves depend on the weather, resulting in uncontrollable quality. By precisely controlling the temperature and humidity during the drying process, the quality and efficiency of tobacco leaf drying are improved.
[0005] The technical solution of this utility model is implemented as follows: a cigar tobacco drying device includes a temperature and humidity control system and a drying chamber. The temperature and humidity control system is set in the drying chamber. Several switchable windows that can achieve sealing and ventilation of the drying chamber are provided on the left and right sides of the drying chamber. The drying chamber is also provided with a door. A tobacco drying rack is provided in the drying chamber. A lifting component that cooperates with the drying chamber is provided in the drying chamber.
[0006] Furthermore, the drying chamber is a heat-insulating structure, and the drying chamber is provided with ventilation holes for installing switch windows. The height of the ventilation holes is greater than or equal to one-third of the height of the side wall of the drying chamber.
[0007] Furthermore, the switchable window includes a window frame, within which a bottom-opening window is provided, and a heat-insulating board that works in conjunction with the drying room is provided on the bottom-opening window.
[0008] Furthermore, the temperature and humidity control system includes a temperature and humidity controller and several fans. The temperature and humidity controller is installed on the outer wall of the drying room, and the fans are installed on the drying room with their air outlets offset from the tobacco leaves. The temperature and humidity controller is electrically connected to a temperature and humidity sensor installed inside the drying room.
[0009] Furthermore, the cigarette drying rack includes symmetrically arranged track rods, on which a cigarette hanging frame is slidably mounted.
[0010] Furthermore, the cigarette hanging frame is provided with at least one reinforcing rod.
[0011] Furthermore, the cigarette hanging frame is provided with several evenly distributed positioning elements, which are symmetrically installed on the cigarette hanging frame.
[0012] Furthermore, the positioning component includes a U-shaped buckle that mates with the hanging frame, with a set screw threaded to the lower part of the U-shaped buckle and a limiting plate provided at the upper part of the U-shaped buckle.
[0013] Furthermore, the cigarette drying rack is also equipped with a limiting plate for fixing the cigarette hanging frame, and the limiting plate is set inside the track plate.
[0014] Furthermore, the lifting assembly includes a winch and a positioning wheel mounted on the roof. The wire rope on the winch extends and passes around the positioning wheel on the roof before connecting to the cigarette hanging frame.
[0015] The beneficial effects of this utility model are as follows: The temperature and humidity control system of this utility model can measure the temperature inside the drying room, and in conjunction with the switchable windows on the drying room, it can achieve the functions of heat preservation, humidity control, ventilation, and dehumidification, ensuring the indoor environment of the drying room and thus improving the quality of tobacco leaf drying. The tobacco drying rack, together with the lifting component, can assist in the up and down movement of tobacco leaves, thereby improving the efficiency of moving tobacco leaves up, down, left, and right. Attached Figure Description
[0016] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a cross-sectional view of the present invention;
[0019] Figure 3 This is a schematic diagram showing the interaction between the limiting plate and the cigarette hanging frame;
[0020] Figure 4 This is a schematic diagram of the installation of the positioning component;
[0021] Figure 5 A diagram illustrating airflow when the fan is turned on and doors and windows are closed;
[0022] Figure 6 This is a schematic diagram showing airflow with the fan and doors and windows fully open.
[0023] In the diagram: 1. Drying room, 2. Opening window, 3. Door, 4. Smoke drying rack, 5. Track rod, 6. Smoke hanging frame, 7. Reinforcing rod, 8. U-shaped buckle, 9. Top screw, 10. Limiting plate, 11. Fixing plate, 12. Winch, 13. Positioning wheel, 14. Steel wire rope, 15. Fan, 16. Temperature and humidity controller. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] like Figure 1 , Figure 2 , Figure 5 and Figure 6 As shown in Embodiment 1, a cigar tobacco drying device includes a temperature and humidity control system and a drying chamber 1. The temperature and humidity control system is installed in the drying chamber 1. Several operable windows 2 are provided on the left and right sides of the drying chamber 1 to achieve sealing and ventilation. A door 3 is also provided on the drying chamber 1. A tobacco drying rack 4 is installed inside the drying chamber 1, and a lifting assembly that cooperates with the tobacco drying rack 4 is also provided inside the drying chamber 1. The existing temperature and humidity control system can measure and, to a certain extent, regulate the temperature inside the drying chamber 1. Combined with the operable windows 2 on the drying chamber 1, it achieves functions such as heat preservation, humidity control, ventilation, and dehumidification, ensuring the indoor environment of the drying chamber 1 and thus improving the quality of the dried tobacco. The tobacco drying rack 4, in conjunction with the lifting assembly, can assist in the loading and unloading of tobacco leaves, thereby improving the efficiency of repositioning the tobacco leaves.
[0026] In this embodiment, the drying chamber 1 is a thermally insulated structure. The drying chamber 1 has ventilation holes that cooperate with the switch window 2, and the height of the ventilation holes is greater than or equal to one-third of the height of the side wall of the drying chamber 1. The drying chamber 1 is made of thermally insulated material, which can effectively reduce heat loss and the influence of the external environment on the internal temperature and humidity, thereby improving drying efficiency. Specifically, the walls and top of the drying chamber 1 are made of thermally insulated material to reduce heat loss and the influence of the external environment on the internal temperature and humidity.
[0027] In this embodiment, the switchable window 2 includes a window frame, within which a downward-opening window is provided. The downward-opening window is equipped with a heat-insulating panel that cooperates with the drying chamber 1. Both the doors and windows of the drying chamber 1 are sealed to prevent outside air from entering and affecting the internal temperature and humidity. The heat-insulating panel prevents strong sunlight from directly affecting the tobacco leaves. When the doors and windows of the drying chamber 1 are closed, it is a sealed structure to reduce heat loss and the impact of the external environment on the internal temperature and humidity. The door 3 of the drying chamber 1 is sealed to prevent outside air from entering.
[0028] In this embodiment, the temperature and humidity control system includes a temperature and humidity controller 16 and a fan 15. The temperature and humidity controller 16 is installed on the outer wall of the drying chamber 1 and connected to the mains power. The temperature and humidity controller 16 is selected according to the size and model of the oven. The fan 15 is installed on the drying chamber 1, and the air outlet of the fan 15 is offset from the tobacco leaves. The temperature and humidity controller 16 is electrically connected to a temperature and humidity sensor installed inside the drying chamber 1. The temperature and humidity controller 16 can measure and cooperate with the fan 15 to control the temperature and humidity inside the drying chamber 1, ensuring that the tobacco leaves are dried in a suitable environment, thereby improving the quality and stability of tobacco leaf drying. The fan 15 promotes air circulation inside the drying chamber 1, making the tobacco leaves dry more evenly.
[0029] Specifically, the temperature and humidity controller 16 is connected to several temperature and humidity sensors, which are installed at different locations within the drying chamber 1 to accurately monitor the temperature and humidity distribution within the drying chamber 1. This is used for real-time monitoring and adjustment of the temperature and humidity within the drying chamber 1. The window and fan 15 are used to regulate airflow within the drying chamber 1, ensuring uniform airflow and preventing excessive local temperature and humidity differences.
[0030] like Figure 2 , Figure 3 and Figure 4As shown in Embodiment 2, a cigar tobacco drying device includes a drying rack 4 comprising symmetrically arranged track rods 5, on which a tobacco hanging frame 6 is slidably mounted. At least six track rods 5 are vertically arranged within the drying chamber 1, and the tobacco hanging frame 6 moves up and down along the track rods 5. The tobacco hanging frame 6 contains at least one reinforcing rod 7, which strengthens the connection and also cooperates with the tobacco hanging rod to hang the tobacco hanging rod on the tobacco hanging frame 6 and the reinforcing rod 7. The tobacco hanging frame 6 has several evenly distributed positioning components, symmetrically installed on it. Each positioning component includes a U-shaped buckle 8 that cooperates with the hanging frame, with a set screw 9 threaded to the lower part of the U-shaped buckle 8 and a limiting plate 10 at the upper part. The drying rack 4 also has a limiting plate 10 for fixing the tobacco hanging frame 6, which is slidably mounted within the track plate. The limiting plate 10 is slidably set in the groove on the track rod 5. The limiting plate 10 is a T-shaped plate. When the limiting frame is above the limiting plate 10, it pushes the limiting plate 10 to slide in the groove and extends the limiting plate 10 to the bottom of the cigarette hanging frame 6. When the cigarette hanging frame 6 falls, the cigarette hanging frame 6 is restricted to the track column by the limiting plate 10 and will not continue to fall, thus fixing the cigarette hanging frame 6.
[0031] All other structures are the same as in Example 1.
[0032] like Figure 2 and Figure 3 As shown in Embodiment 3, a cigar tobacco drying device includes a lifting assembly comprising a winch 12 and positioning wheels 13 mounted on the roof. A steel wire rope 14 on the winch 12 extends and passes over the positioning wheels 13 on the roof before connecting to a tobacco hanging frame 6. A fixing plate 11 is connected to the steel wire rope 14, located below the tobacco hanging frame 6 for fixing the frame. The winch 12 is connected to mains power and drives the tobacco hanging frame 6 up and down via the steel wire rope 14. The winch is installed in the upper part of the drying chamber. Preferably, the inlet end of the winch is flush with the outlet end on the positioning wheels. There are at least six positioning wheels, which can also be installed on the top of a track rod to facilitate the up and down movement of the tobacco hanging frame along the track rod. The cooperation between the winch 12 and the positioning wheels 13 allows for adjustment of the height of the tobacco hanging frame 6, facilitating the hanging and removal of tobacco leaves and improving the operational convenience of the drying process. The entire device has a simple structure, is easy to operate, and is suitable for large-scale cigar tobacco drying production.
[0033] Specifically, four smoke-hanging frames 6 are sequentially connected to the wire rope 14. When smoke is initially hung, the winch 12 winds up the wire rope 14, raising the uppermost smoke-hanging frame 6 to a suitable height for manual smoke loading. During this process, the track rod 5 restricts the smoke-hanging frame 6 to prevent tilting during ascent. After the first smoke-hanging frame 6 is loaded, the wire rope 14 is pulled further, causing the first smoke-hanging frame 6 to continue rising, while the second smoke-hanging frame 6 rises to a suitable height for manual smoke loading. This process is repeated to load all four smoke-hanging frames 6. After completion, the height is adjusted so that all four smoke-hanging frames 6 are positioned on the limit plate 10, preventing the winch 12 from being under constant stress and affecting its service life. Unloading smoke is the reverse process, requiring the frames to be lowered sequentially.
[0034] All other structures are the same as in Example 2.
[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A device for drying cigar tobacco leaves, comprising a temperature and humidity control system and a drying chamber (1), wherein the temperature and humidity control system is disposed in the drying chamber (1), characterized in that: The drying room (1) has several openable windows (2) on the left and right sides that can achieve sealing and ventilation of the drying room (1). The drying room (1) is also equipped with a door (3). The drying room (1) is equipped with a smoke rack (4). The drying room (1) is equipped with a lifting component that works with the drying room (1).
2. The cigar tobacco drying apparatus according to claim 1, characterized in that: The drying room (1) is a heat-insulating structure. The drying room (1) is provided with ventilation holes that cooperate with the opening and closing window (2). The height of the ventilation holes is greater than or equal to one-third of the side wall of the drying room (1).
3. The cigar tobacco drying apparatus according to claim 2, characterized in that: The switch window (2) includes a window frame, and a bottom opening window is provided inside the window frame. The bottom opening window is provided with a heat insulation board that works in conjunction with the drying room (1).
4. The cigar tobacco drying apparatus according to claim 3, characterized in that: The temperature and humidity control system includes a temperature and humidity controller (16) and a fan (15). The temperature and humidity controller (16) is installed on the outer wall of the drying room (1). The fans (15) are all installed on the drying room (1), and the air outlet of the fans (15) is offset from the tobacco leaves. The temperature and humidity controller (16) is electrically connected to a temperature and humidity sensor installed in the drying room (1).
5. The cigar tobacco drying apparatus according to any one of claims 2 to 4, characterized in that: The cigarette drying rack (4) includes symmetrically arranged track rods (5), and a cigarette hanging frame (6) is slidably arranged on the track rods (5).
6. The cigar tobacco drying apparatus according to claim 5, characterized in that: The cigarette hanging frame (6) is provided with at least one reinforcing rod (7).
7. The cigar tobacco drying apparatus according to claim 6, characterized in that: The cigarette hanging frame (6) is provided with several evenly distributed positioning parts, which are symmetrically installed on the cigarette hanging frame (6).
8. The cigar tobacco drying apparatus according to claim 7, characterized in that: The positioning component includes a U-shaped buckle (8) that cooperates with the hanging frame. The lower part of the U-shaped buckle (8) is threaded with a set screw (9), and the upper part of the U-shaped buckle (8) is provided with a limiting plate (10).
9. The cigar tobacco drying apparatus according to any one of claims 6 to 8, characterized in that: The cigarette drying rack (4) is also provided with a limiting plate (10) for fixing the cigarette hanging frame (6), and the limiting plate (10) is set inside the track plate.
10. The cigar tobacco drying apparatus according to claim 9, characterized in that: The lifting assembly includes a winch (12) and a positioning wheel (13) mounted on the roof. The wire rope (14) on the winch (12) extends and passes around the positioning wheel (13) on the roof before connecting to the cigarette hanging frame (6).