Tobacco leaf baking weighing device and tobacco leaf baking room
By designing a tobacco curing weighing device, a weight sensor with a cantilever structure is used to monitor the weight of tobacco leaves in real time, solving the problem of obtaining moisture content and dehydration rate during the tobacco curing process, thus achieving data accuracy and reducing the burden on operators.
Patent Information
- Application Number
- CN202520347543.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-03
- Estimated Expiration
- 2035-02-28
AI Technical Summary
In existing technologies, it is difficult to obtain the moisture content and dehydration rate of tobacco leaves in a timely manner during the tobacco curing process, and the workload of operators is high.
Design a tobacco leaf curing weighing device, including a support device and a weight sensor. The device monitors the weight of tobacco leaves in real time through a cantilever structure, calculates the moisture content and dehydration rate, establishes a moisture content prediction model, and reduces the workload of operators.
It enables timely and effective acquisition of moisture content and dehydration rate during tobacco curing, improving data accuracy and reducing the burden on operators.
Smart Images

Figure CN223958316U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tobacco curing technology, and in particular to a tobacco curing weighing device and a tobacco curing room. Background Technology
[0002] Flue-cured tobacco is the main raw material for the cigarette industry. Flue-cured tobacco leaves are relatively large, and after curing, the leaves are mostly orange-yellow or lemon-yellow in color, with a bright luster. They are of moderate thickness, with the middle leaves being of the highest quality. Flue-cured tobacco has a high sugar content, relatively low total nitrogen and protein content, and a moderate nicotine content.
[0003] Tobacco curing involves placing mature tobacco leaves in a curing room equipped with hot air pipes, where suitable temperature and humidity conditions are artificially provided to continuously dehydrate and dry the tobacco leaves.
[0004] During tobacco curing, heating too quickly or too slowly will prevent the tobacco leaves from fully yellowing and dehydrating. For example, if the temperature rises too rapidly, the tobacco leaves will dehydrate too quickly, resulting in surface yellowing but insufficient yellowing of the deeper tissues. To avoid heating too quickly or too slowly, the traditional method involves operators controlling the curing time based on their personal experience. This method has significant limitations and makes it difficult to promptly obtain changes in the moisture content of the tobacco leaves to adjust the temperature and humidity. Utility Model Content
[0005] The purpose of this invention is to provide a tobacco curing weighing device and a tobacco curing room to solve the problems existing in the prior art. This device facilitates the timely and effective acquisition of the moisture content and dehydration rate of tobacco leaves during the curing process, and also reduces the workload of operators.
[0006] To achieve the above objectives, this utility model provides the following solution:
[0007] This utility model provides a tobacco curing weighing device, including two support devices and at least two tobacco clips. One support device can support one end of each tobacco clip, and the other support device can support the other end of each tobacco clip. The support device includes a fixed frame, a support bracket, a weight sensor, a first pad, and a second pad. The fixed frame is fixedly mounted on the support crossbar of the curing chamber. The support bracket is placed above the fixed frame, and its top surface can support one end of each tobacco clip. The weight sensor is placed between the fixed frame and the support bracket. The first pad is placed between the weight sensor and the fixed frame, and is fixedly connected to the first end of the weight sensor and the fixed frame. The second pad is placed between the weight sensor and the support bracket, and is fixedly connected to the second end of the weight sensor and the support bracket.
[0008] Preferably, the fixing frame is detachably fixed to the crossbar supporting the baking chamber.
[0009] Preferably, it also includes a wing nut and a first bolt, the threaded portion of the first bolt being able to pass through the fixing frame and the baking chamber support crossbar, the wing nut being threadedly connected to the threaded portion of the first bolt to lock and fix the fixing frame and the baking chamber support crossbar.
[0010] Preferably, one end of the fixing frame has a first flange portion, which can contact the crossbar supporting the baking chamber.
[0011] Preferably, the first pad is detachably fixedly connected to the first end of the weight sensor and the fixing frame, and the second pad is detachably fixedly connected to the second end of the weight sensor and the support bracket.
[0012] Preferably, it further includes a second bolt and a third bolt. The threaded portion of the second bolt can pass through the baking chamber support crossbar, the fixing frame and the first pad in sequence, and the threaded portion of the second bolt can be threadedly connected to the first end of the weight sensor. The threaded portion of the third bolt can pass through the support bracket and the second pad in sequence, and the threaded portion of the third bolt can be threadedly connected to the second end of the weight sensor.
[0013] Preferably, both ends of the support bracket have a second flange portion, which can cover the weight sensor.
[0014] Preferably, the top surface of the support bracket is a plane.
[0015] This utility model also provides a tobacco curing barn, including a curing barn support crossbar and a tobacco curing weighing device as described above.
[0016] Preferably, the crossbar supporting the baking chamber is an angle iron.
[0017] The present invention achieves the following technical advantages over the prior art:
[0018] This utility model provides a tobacco curing weighing device and a tobacco curing chamber. A first pad increases the distance between the weight sensor and the fixed frame, and a second pad increases the distance between the weight sensor and the support bracket, forming a cantilever structure to prevent damage to the weight sensor. The weight sensor weighs the entire tobacco leaf supported by the support bracket, monitoring the weight data in real time. This allows for the calculation of the tobacco leaf moisture content and dehydration rate by measuring the weight of the tobacco leaves on the support bracket. The dehydration rate varies at different stages of curing. By measuring the weight of the tobacco leaves at different stages of curing, the moisture content and dehydration rate of the tobacco leaves during curing can be calculated. The dehydration rate is measured, and the dynamic changes in tobacco leaf moisture content and dehydration rate are characterized in real time and indirectly by measuring the weight change during the tobacco curing process. This provides data support for summarizing the change law of tobacco leaf moisture content during curing, establishing corresponding moisture content prediction models, and accurately controlling the state changes of tobacco leaf during curing. Furthermore, by using two support devices to support at least two tobacco clamps, the influence of weight drift caused by excessive moisture loss of tobacco leaves in the later stage of drying can be effectively mitigated, improving the accuracy of data. Moreover, the structure is simple, reliable, and practical, which not only facilitates the timely and effective acquisition of tobacco leaf moisture content and dehydration rate during curing, but also reduces the workload of operators. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.
[0020] Figure 1 A schematic diagram of the tobacco leaf curing and weighing device provided by this utility model;
[0021] Figure 2 for Figure 1 Exploded view of the tobacco curing weighing device in the diagram;
[0022] In the diagram: 1-fixed frame, 2-support bracket, 3-weight sensor, 4-first pad, 5-second pad, 6-wing nut, 7-first bolt, 8-first flange, 9-second bolt, 10-third bolt, 11-second flange, 12-washer, 13-baking chamber support crossbar. Detailed Implementation
[0023] 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.
[0024] The purpose of this invention is to provide a tobacco curing weighing device and a tobacco curing room to solve the problems existing in the prior art. This device facilitates the timely and effective acquisition of the moisture content and dehydration rate of tobacco leaves during the curing process, and also reduces the workload of operators.
[0025] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0026] Example 1
[0027] like Figures 1 to 2 As shown, this embodiment provides a tobacco curing weighing device, including two support devices and at least two tobacco clips. One support device can support one end of each tobacco clip, and the other support device can support the other end of each tobacco clip. The support device includes a fixed frame 1, a support bracket 2, a weight sensor 3, a first pad 4, and a second pad 5. The fixed frame 1 is fixedly mounted on the support crossbar 13 of the curing chamber. The support bracket 2 is placed above the fixed frame 1, and the top surface of the support bracket 2 can support one end of each tobacco clip. The weight sensor 3 is placed between the fixed frame 1 and the support bracket 2. The first pad 4 is placed between the weight sensor 3 and the fixed frame 1, and the first pad 4 is fixedly connected to the first end of the weight sensor 3 and the fixed frame 1. The second pad 5 is placed between the weight sensor 3 and the support bracket 2, and the second pad 5 is fixedly connected to the second end of the weight sensor 3 and the support bracket 2.
[0028] The tobacco leaf curing weighing device provided in this embodiment increases the distance between the weight sensor 3 and the fixed frame 1 by using a first pad 4, and increases the distance between the weight sensor 3 and the support bracket 2 by using a second pad 5, forming a cantilever structure to prevent damage to the weight sensor 3. The weight sensor 3 weighs the entire tobacco leaf supported by the support bracket 2, monitoring the weight data of the tobacco leaf in real time. This allows for the calculation of the tobacco leaf moisture content and dehydration rate by measuring the weight of the tobacco leaf on the support bracket 2. The dehydration rate of the tobacco leaf varies at different stages of curing. By measuring the weight of the tobacco leaf at different stages of curing, the moisture content of the tobacco leaf during curing can be calculated based on the weight of the tobacco leaf. The system measures the moisture content and dehydration rate of tobacco leaves, and then indirectly characterizes the dynamic changes in moisture content and dehydration rate of tobacco leaves in real time by measuring the weight changes during the tobacco curing process. This provides data support for summarizing the changes in moisture content of tobacco leaves during curing, establishing corresponding moisture content prediction models, and accurately controlling the state changes of tobacco leaves during curing. Furthermore, by using two support devices to support at least two tobacco clamps, the system can effectively mitigate the impact of weight drift caused by excessive moisture loss in the later stages of drying, improve data accuracy, and is simple, reliable, and practical. It facilitates the timely and effective acquisition of moisture content and dehydration rate of tobacco leaves during curing, while also reducing the workload of operators.
[0029] The weight sensor 3 preferably adopts an existing cantilever beam sensor, which has the characteristics of high precision, good stability and good sealing. Even in harsh environments with high temperature and high humidity, it can still work continuously and stably for a long time, ensuring the accurate measurement of weight data.
[0030] As a preferred embodiment of this invention, the fixing frame 1 and the baking chamber support crossbar 13 are detachably fixedly connected, which facilitates assembly and disassembly and makes maintenance convenient.
[0031] As a preferred embodiment of this invention, the tobacco curing weighing device provided in this embodiment further includes a wing nut 6 and a first bolt 7. The threaded part of the first bolt 7 can pass through the fixed frame 1 and the curing chamber support crossbar 13. The wing nut 6 is threadedly connected to the threaded part of the first bolt 7 to lock and fix the fixed frame 1 and the curing chamber support crossbar 13. The structure is simple and easy to disassemble and assemble.
[0032] In a preferred embodiment of this invention, one end of the fixing frame 1 has a first flange 8, which can contact the baking chamber support crossbar 13. By contacting the baking chamber support crossbar 13 with the first flange 8, the fixing frame 1 and the baking chamber support crossbar 13 are positioned during assembly, which can improve assembly efficiency and the stability of the assembly structure of the fixing frame 1 and the baking chamber support crossbar 13. In a preferred embodiment of this invention, the fixing frame 1 is made of stainless steel.
[0033] As a preferred embodiment of this invention, the first pad 4 is detachably and fixedly connected to the first end of the weight sensor 3 and the fixing frame 1, and the second pad 5 is detachably and fixedly connected to the second end of the weight sensor 3 and the support bracket 2, which facilitates assembly and disassembly and makes maintenance convenient.
[0034] As a preferred embodiment of this invention, the tobacco curing weighing device provided in this embodiment further includes a second bolt 9 and a third bolt 10. The threaded portion of the second bolt 9 can pass through the curing chamber support crossbar 13, the fixing frame 1, and the first pad 4 in sequence, and the threaded portion of the second bolt 9 can be threadedly connected to the first end of the weight sensor 3. The threaded portion of the third bolt 10 can pass through the support bracket 2 and the second pad 5 in sequence, and the threaded portion of the third bolt 10 can be threadedly connected to the second end of the weight sensor 3. The structure is simple and easy to manufacture and use.
[0035] In a preferred embodiment of this invention, both ends of the support bracket 2 have second flanges 11. The second flanges 11 can cover the weight sensor 3, effectively protecting the weight sensor 3 and preventing the tobacco leaves from contacting the strain gauges on the weight sensor 3, thus ensuring the measurement accuracy of the weight sensor 3. Furthermore, the second flanges 11 can improve the overall rigidity of the support bracket 2 and prevent the support bracket 2 from bending and deforming under heavy pressure. In a preferred embodiment of this invention, the support bracket 2 is made of stainless steel.
[0036] As a preferred embodiment of this invention, the top surface of the support bracket 2 is flat to facilitate the support of the cigarette clip, ensuring that the cigarette clip always fits against the top surface of the support bracket 2 and that the cigarette clip is placed stably.
[0037] In a preferred embodiment of this invention, the first bolt 7, the second bolt 9, and the third bolt 10 are all equipped with washers 12.
[0038] Example 2
[0039] This embodiment provides a tobacco curing barn, including a curing barn support crossbar 13 and the tobacco curing weighing device in Embodiment 1.
[0040] The tobacco curing chamber provided in this embodiment increases the distance between the weight sensor 3 and the fixed frame 1 by using a first pad 4, and increases the distance between the weight sensor 3 and the support bracket 2 by using a second pad 5, forming a cantilever structure to prevent damage to the weight sensor 3. The weight sensor 3 weighs the entire tobacco leaf supported by the support bracket 2, monitoring the weight data of the tobacco leaf in real time. This allows for the calculation of the tobacco leaf moisture content and dehydration rate by measuring the weight of the tobacco leaf on the support bracket 2. The dehydration rate of the tobacco leaf varies at different stages of curing. By measuring the weight of the tobacco leaf at different stages of curing, the moisture content and dehydration rate of the tobacco leaf during curing can be calculated. The dehydration rate is measured, and the dynamic changes in tobacco leaf moisture content and dehydration rate are characterized in real time and indirectly by measuring the weight change during the tobacco curing process. This provides data support for summarizing the change law of tobacco leaf moisture content during curing, establishing corresponding moisture content prediction models, and accurately controlling the state changes of tobacco leaf during curing. Furthermore, by using two support devices to support at least two tobacco clamps, the influence of weight drift caused by excessive moisture loss of tobacco leaves in the later stage of drying can be effectively mitigated, improving the accuracy of data. Moreover, the structure is simple, reliable, and practical, which not only facilitates the timely and effective acquisition of tobacco leaf moisture content and dehydration rate during curing, but also reduces the workload of operators.
[0041] It should be noted that in the tobacco curing barn provided in this embodiment, there are no specific limitations on the number of curing barn support crossbars 13 and the number of tobacco curing weighing devices installed on each set of curing barn support crossbars 13.
[0042] As a preferred embodiment of this invention, the baking oven support crossbar 13 is made of angle iron, which has high structural strength and can ensure support stability and safety.
[0043] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.
Claims
1. A tobacco leaf curing weighing apparatus, characterised in that: The device comprises two supporting devices and at least two tobacco clamps, one of the supporting devices is capable of supporting one end of each of the tobacco clamps, and the other of the supporting devices is capable of supporting the other end of each of the tobacco clamps; the supporting device comprises a fixing frame, a supporting bracket, a weight sensor, a first pad and a second pad, the fixing frame is used for fixing on a curing house support crossbar, the supporting bracket is arranged above the fixing frame, a top surface of the supporting bracket is capable of bearing one end of each of the tobacco clamps, the weight sensor is arranged between the fixing frame and the supporting bracket, the first pad is arranged between the weight sensor and the fixing frame, the first pad is fixedly connected with a first end of the weight sensor and the fixing frame, and the second pad is arranged between the weight sensor and the supporting bracket, the second pad is fixedly connected with a second end of the weight sensor and the supporting bracket.
2. The tobacco leaf curing and weighing apparatus of claim 1, wherein: The fixing frame is detachably fixedly connected with the curing house support crossbar.
3. The tobacco curing scale of claim 2, wherein: The device further comprises a butterfly nut and a first bolt, a shank of the first bolt is capable of penetrating through the fixing frame and the curing house support crossbar, the butterfly nut is threadedly connected with the shank of the first bolt to lock and fix the fixing frame and the curing house support crossbar.
4. The tobacco curing and weighing apparatus of claim 2, wherein: One end of the fixing frame is provided with a first flanging part, and the first flanging part is capable of contacting the curing house support crossbar.
5. The tobacco curing scale of claim 1, wherein: The first pad is detachably fixedly connected with the first end of the weight sensor and the fixing frame, and the second pad is detachably fixedly connected with the second end of the weight sensor and the supporting bracket.
6. The tobacco curing scale of claim 5, wherein: The device further comprises a second bolt and a third bolt, a shank of the second bolt is capable of penetrating through the curing house support crossbar, the fixing frame and the first pad in sequence, and the shank of the second bolt is capable of being threadedly connected with the first end of the weight sensor; a shank of the third bolt is capable of penetrating through the supporting bracket and the second pad in sequence, and the shank of the third bolt is capable of being threadedly connected with the second end of the weight sensor.
7. The tobacco curing and weighing apparatus of claim 1, wherein: Both ends of the supporting bracket are provided with second flanging parts, and the second flanging parts are capable of covering the weight sensor.
8. The tobacco curing scale of claim 1, wherein: The top surface of the supporting bracket is a plane.
9. A tobacco curing barn characterized by: The device further comprises a curing house support crossbar and the tobacco leaf curing and weighing device according to any one of claims 1 to 8.
10. The tobacco curing barn of claim 9, wherein: The curing house support crossbar is an angle iron.