Tobacco leaf moisture detection device

Abstract

The utility model belongs to the technical field of tobacco leaf production, and discloses a tobacco leaf moisture detection device. The tobacco leaf moisture detection device comprises a sampling structure, a weight detector, a microwave moisture detector and a console, the console is in signal connection with the sampling structure, the console can control the sampling frequency and the sampling amount of the sampling structure, the sampling structure places a tobacco leaf sample in the weight detector, the microwave moisture detector emits microwaves, and the microwave moisture detector emits the microwaves. And the microwave can penetrate through the tobacco leaf sample in the weight detector. The control console and the sampling structure are arranged to achieve automatic sampling, the weight detector is used for measuring the mass of a tobacco leaf sample taken every time, the tobacco leaf moisture content is measured in a microwave detection mode, microwave moisture detection can penetrate through the surface of the tobacco leaf sample, and the accurate tobacco leaf moisture content is calculated according to microwave signals and the tobacco leaf mass. The moisture content calculation error caused by inaccurate quality of the tobacco leaf sample sampled each time is avoided, the detection accuracy is improved, and data guarantee is provided for tobacco leaf production and processing.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco production technical field especially, relate to a tobacco moisture detection device. BACKGROUND

[0002] Leaf threshing and redrying is a kind of tobacco raw material processing technology, mainly used to separate the tobacco stem after primary curing and adjust the moisture for the second time, so that it is suitable for cigarette production.In the process of leaf threshing and redrying, the accuracy of tobacco moisture detection is the key index to guarantee product quality and production process.

[0003] In the prior art, near-infrared moisture detector is usually used, which uses near-infrared light to irradiate tobacco, and different moisture contents will result in different spectral absorption and reflection, and the moisture content is determined by analyzing spectral data, and the light source and detector of the near-infrared moisture detector work continuously to achieve real-time monitoring purpose.But using near-infrared light for moisture detection can only detect the surface moisture of tobacco, and the error of detection result will be caused by the inaccurate quality of tobacco detected each time, and the accuracy is low.

[0004] Therefore, it is urgent to provide a tobacco moisture detection device to penetrate tobacco for moisture detection, measure the quality of tobacco sample and calculate the accurate moisture content according to the quality, improve the accuracy and reliability of detection result. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of tobacco moisture detection device to penetrate tobacco for moisture detection, measure the quality of tobacco sample and calculate the accurate moisture content according to the quality using microwave signal, guarantee the accuracy and reliability of detection result.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of tobacco moisture detection device, which comprises:

[0008] Sampling structure is used to take out tobacco sample;

[0009] Weight detector, the sampling structure is placed in the weight detector;

[0010] Microwave moisture detector is used to emit and receive microwave and make the microwave penetrate the tobacco sample in the weight detector;

[0011] Control console is connected with the sampling structure signal, for controlling the sampling frequency and sampling amount of the sampling structure.

[0012] As an optional technical scheme of the tobacco leaf moisture detection device, the weight detector comprises a container body and a cover, the cover is arranged on the container body and encloses the container body to form a closed space for accommodating the tobacco leaf sample.

[0013] As an optional technical scheme of the tobacco leaf moisture detection device, the weight detector further comprises a turnover structure and an electronic controller, the cover and the container body are connected through the turnover structure, and the electronic controller is used to control the turnover structure to turn over the cover, so that the cover is automatically opened and closed.

[0014] As an optional technical scheme of the tobacco leaf moisture detection device, the microwave moisture detector comprises a microwave emitting structure and a microwave receiving structure, and the microwave emitting structure and the microwave receiving structure are oppositely arranged on two sides of the container body.

[0015] As an optional technical scheme of the tobacco leaf moisture detection device, the container body and the cover are made of acrylic material or organic glass material.

[0016] As an optional technical scheme of the tobacco leaf moisture detection device, the microwave moisture detector is signal-connected with the control console, and the control console can control the power of the microwave moisture detector.

[0017] As an optional technical scheme of the tobacco leaf moisture detection device, the microwave moisture detector is signal-connected with the control console, and the control console can record and display the moisture detection data measured by the microwave moisture detector in real time.

[0018] As an optional technical scheme of the tobacco leaf moisture detection device, the weight detector is signal-connected with the control console, and the control console can record and display the quality data measured by the weight detector in real time.

[0019] As an optional technical scheme of the tobacco leaf moisture detection device, the sampling structure comprises a mechanical arm, and the mechanical arm is telescopic.

[0020] As an optional technical scheme of the tobacco leaf moisture detection device, the tobacco leaf moisture detection device further comprises an image acquisition element for acquiring an image of the tobacco leaf sample.

[0021] Advantages:

[0022] The utility model provides a tobacco moisture detection device, the tobacco moisture detection device includes sampling structure, weight detector, microwave moisture detector and control platform, control platform and sampling structure signal connection, control platform can control the sampling frequency and sampling amount of sampling structure, sampling structure places tobacco sample in weight detector, microwave moisture detector is used for transmitting and receiving microwave, and microwave can penetrate tobacco sample in weight detector. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the structure schematic diagram of tobacco moisture detection device provided by the utility model embodiment.

[0024] In the drawing:

[0025] 10, sampling structure; 20, weight detector; 30, microwave moisture detector; 40, control platform. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the part related to the utility model is shown in the drawing, not all structures.

[0027] In the description of the utility model, unless there is explicit definition and limitation, the terms "connected", "connected", "fixed" should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through intermediate medium, can be the communication of two elements or the interaction of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless another definite provision and limitation, first feature is "on" or "under" second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through other feature between them. Moreover, first feature "on", "above" and "upper surface" of second feature includes that first feature is directly above and obliquely above second feature, or only indicates that horizontal height of first feature is higher than second feature. First feature "under", "below" and "under surface" of second feature includes that first feature is directly below and obliquely below second feature, or only indicates that horizontal height of first feature is less than second feature.

[0029] In the description of the embodiment, the terms "upper", "lower", "right", "left", "horizontal", "vertical", and "radial" are terms that indicate relative position only and are used to facilitate description of the application without limiting the position of the device or element indicated thereby, and therefore, cannot be construed as limiting the application. In addition, the terms "first", "second", and the like are used only to distinguish between similar objects in the description and do not have special meanings.

[0030] Generally, the environment of the leaf threshing and redrying production workshop is complex, the light in the workshop is greatly affected by weather factors, there is much dust during production and maintenance of the workshop, and the color of tobacco leaves processed in different modules is obviously different. The near-infrared moisture detection method is easily affected by external environmental dust, light, and the color of tobacco materials. For example, a slight change in the color of a tobacco sample can significantly affect the near-infrared moisture detection result; the near-infrared moisture detection result is affected by the intensity of light; and the lens of the near-infrared moisture detection equipment is affected by dust and soil, which affects the measurement result.

[0031] Therefore, production personnel need to check the near-infrared moisture detection result every day, and the online near-infrared moisture detector needs to be recalibrated after each production and processing module is replaced. If the calibration cannot be performed in time, the accuracy of the moisture detection result during the production and processing of tobacco leaves will be low. At the same time, the flatness of the tobacco leaves on the belt is poor, which causes large fluctuations in the distance between the tobacco leaves and the probe, aggravates the large fluctuations in the near-infrared moisture detection result, and results in low accuracy.

[0032] As shown in Figure 1 The utility model provides a kind of tobacco moisture detection device, which includes sampling structure 10, weight detector 20, microwave moisture detector 30 and control console 40, control console 40 and sampling structure 10 signal connection, control console 40 can control the sampling frequency and sampling amount of sampling structure 10, sampling structure 10 places tobacco sample in weight detector 20, microwave moisture detector 30 is used to emit and receive microwave, and microwave can penetrate tobacco sample in weight detector 20.

[0033] The automatic sampling is realized by setting the console 40 and the sampling structure 10, and the weight detector 20 is arranged to measure the mass of the tobacco sample taken each time, the microwave detection is used to measure the moisture content of the tobacco, the microwave moisture detection can penetrate the surface of the tobacco sample and does not affect the physical structure of the tobacco sample, the accurate moisture content is calculated according to the microwave signal and the mass of the tobacco, the calculation error of the moisture content caused by the inaccurate mass of the tobacco sample taken each time is avoided, and the detection accuracy is effectively improved, thereby providing data support for the tobacco production and processing.

[0034] In the prior art, leaf moistening is an important process before threshing, and the quality thereof directly affects the effect of subsequent threshing and indirectly affects the sensory evaluation and smoking quality. The main purpose of leaf moistening before threshing is to adjust the moisture content of tobacco to make it suitable for threshing.

[0035] The leaf moistening structure includes a leaf moistening cylinder and a front and rear conveying structure. The tobacco moisture detection device in the embodiment is arranged near the outlet position of the leaf moistening cylinder, the sampling structure 10 can grab the tobacco sample from the conveying belt at the outlet for detection, after the detection, the sampling structure 10 can grab the detected tobacco sample from the weight detector 20 and put the detected tobacco sample back on the conveying belt at the outlet of the leaf moistening cylinder. Considering the installation space, the sampling structure 10 can be installed near the left position of the outlet, and the weight detector 20, the microwave moisture detector 30 and the console 40 are installed near the right position of the outlet.

[0036] Optionally, the microwave moisture detector 30 is in signal connection with the console 40, the console 40 can record and display the moisture detection data measured by the microwave moisture detector 30 in real time, the console 40 can control the power of the microwave moisture detector 30, and the weight detector 20 is in signal connection with the console 40, and the console 40 can record and display the mass data measured by the weight detector 20 in real time.

[0037] In the embodiment, the console 40 is a computer, the console 40 is connected with the sampling structure 10, the weight detector 20 and the microwave moisture detector 30 through data lines respectively, and the sampling structure 10 is a telescopic mechanical arm.

[0038] By setting the console 40, the console 40 can control the sampling frequency and sampling amount of the sampling structure 10 according to the production and processing requirements, by setting the telescopic mechanical arm, the mechanical arm can be extended or retracted to adapt to close-range and long-distance operation, and by setting the console 40 to record and display the weight data and the moisture detection data, strong data support can be provided for the tobacco production and processing process.

[0039] In the embodiment, the tobacco leaf moisture detection device further comprises an image acquisition element for acquiring an image of the tobacco leaf sample. By arranging the image acquisition element, the shape and position information of the tobacco leaf sample can be captured. It can be understood that the mechanical arm can control the amount of tobacco leaf sample grasped by cooperating with the image acquisition element and intelligent algorithm. The image acquisition element is used to take a picture of the tobacco leaf sample to capture the shape and position information of the tobacco leaf sample. Then, based on the data captured by the image acquisition element, the target position is determined and the grasping path and grasping force are planned, so as to ensure that the mechanical arm can accurately grasp the tobacco leaf sample and roughly control the sampling amount of the tobacco leaf sample each time.

[0040] Further, in order to prevent external environment interference detection, the weight detector 20 comprises a container body and a cover, the cover is arranged on the container body and encloses a closed space with the container body, and the closed space can accommodate the tobacco leaf sample. By enclosing the container body and the cover into a closed space, after the cover is opened, the mechanical arm grasps the tobacco leaf sample and places the tobacco leaf sample in the container body, and then the weight of the tobacco leaf sample can be detected, and then the cover is closed, so that the internal space of the weight detector 20 is separated from the external environment, avoiding the influence of external factors, while keeping the volume of tobacco leaf the same each time, which helps to ensure the accuracy of the detection result.

[0041] Optionally, the weight detector 20 further comprises a turnover structure and an electronic controller, the cover and the container body are connected through the turnover structure, and the electronic controller is used to control the turnover structure to turn over the cover, so that the cover is automatically opened and closed. By arranging the turnover structure and the electronic controller, the cover can be automatically opened before the detection starts, kept closed during the detection, and automatically opened after the detection is completed, so that the mechanical arm can grasp the detected tobacco leaf sample from the container body and place it on the conveying belt at the outlet of the leaf moistening cylinder, without the need for additional manual operation, saving time and manpower, and being convenient and efficient.

[0042] The turnover structure and the electronic controller can be arranged according to the existing automatic opening and closing cover structure. The electronic controller can be connected to the console 40 and controlled by the console 40 to start the electronic controller, and then drive the turnover structure to turn over the cover, so as to realize the automatic opening and closing of the cover.

[0043] The set range of the sampling amount needs to refer to the amount of tobacco leaf sample that can be accommodated by the weight detector 20. In the embodiment, the sampling amount of the mechanical arm each time is based on the container body of the weight detector 20 being filled.

[0044] In the embodiment, the microwave moisture detector 30 comprises a microwave transmitting structure and a microwave receiving structure, which are oppositely arranged on two sides of the container body; the container body and the cover of the weight detector 20 are made of acrylic material or organic glass material. By arranging the microwave transmitting structure and the microwave receiving structure on two sides of the container body respectively, and making the transparent container body of acrylic material or organic glass material, it is ensured that the microwave emitted by the microwave moisture detector 30 can pass through the container body of the weight detector 20.

[0045] The following is the specific use process of the tobacco moisture detection device:

[0046] The sampling structure 10 grabs the tobacco sample from the conveying belt at the outlet of the leaf moistening cylinder, the cover of the weight detector 20 is automatically opened, the sampling structure 10 places the grabbed tobacco sample in the container body of the weight detector 20, and then the cover is automatically closed to measure the weight of the tobacco sample.

[0047] The microwave transmitting structure of the microwave moisture detector 30 emits microwaves, the microwaves pass through the container body and penetrate the tobacco sample, and are received by the microwave receiving structure, the change of the microwaves before and after is recorded, the detection is completed, and the microwave data is transmitted to the control console 40, combined with the weight data of the tobacco detected by the weight detector 20, the moisture of the tobacco is calculated. Microwaves have volatility and penetration. When microwaves pass through tobacco samples containing moisture, water molecules will interact with microwaves. Since water molecules are polar molecules, they will absorb the energy of microwaves and produce rotation and other movements, thereby causing the attenuation and phase change of microwave energy. By measuring the power attenuation degree or phase change of microwaves before and after passing through the tobacco, the moisture content in the tobacco can be reflected.

[0048] After the detection is completed, the cover is automatically opened, the sampling structure 10 grabs the detected tobacco sample from the container body, and places the tobacco sample back on the conveying belt at the outlet of the leaf moistening cylinder.

[0049] In the embodiment, the microwave moisture detection technology is used, microwaves can penetrate tobacco for moisture detection, microwave moisture detection is not affected by external environmental dust, light, tobacco material color, etc., and can effectively avoid the situation that the distance between near-infrared moisture detection tobacco and the probe fluctuates greatly due to poor flatness of tobacco on the belt, thereby affecting the detection, microwave moisture detection has strong anti-interference ability, the detection result is more representative, and the accuracy and reliability of the tobacco moisture detection result in the leaf threshing and curing production process are ensured.

[0050] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is not necessary and also impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application claim.

Claims

1. A tobacco leaf moisture detection device, characterized by, The application relates to a tobacco moisture detection device. The device comprises: a sampling structure (10) for taking tobacco samples; a weight detector (20) in which the sampling structure (10) places the tobacco samples, the weight detector (20) comprising a container body and a cover, the cover being arranged on the container body and enclosing the container body to form a closed space for accommodating the tobacco samples; a microwave moisture detector (30) for transmitting and receiving microwaves and making the microwaves penetrate the tobacco samples in the weight detector (20); the microwave moisture detector (30) comprising a microwave transmitting structure and a microwave receiving structure, the microwave transmitting structure and the microwave receiving structure being oppositely arranged on two sides of the container body; and a control console (40) in signal connection with the sampling structure (10) and used for controlling the sampling frequency and sampling amount of the sampling structure (10). The weight detector (20) further comprises a turnover structure and an electronic controller, the cover and the container body are connected through the turnover structure, and the electronic controller is used for controlling the turnover structure to turn over the cover so that the cover is automatically opened and closed. The container body and the cover are made of acrylic material or organic glass material. The microwave moisture detector (30) is in signal connection with the control console (40), and the control console (40) can control the power of the microwave moisture detector (30).

2. The tobacco leaf moisture detection device of claim 1, wherein, The microwave moisture detector (30) is in signal connection with the control console (40), and the control console (40) can record and display the moisture detection data measured by the microwave moisture detector (30) in real time.

3. The tobacco leaf moisture detection device of claim 1, wherein, The weight detector (20) is in signal connection with the control console (40), and the control console (40) can record and display the quality data measured by the weight detector (20) in real time.

4. The tobacco moisture detection device of claim 1, wherein, The sampling structure (10) comprises a mechanical arm, and the mechanical arm is telescopic.

5. The tobacco leaf moisture detection device of claim 1, wherein, The tobacco moisture detection device further comprises an image acquisition element for acquiring images of the tobacco samples.

6. The tobacco moisture detection device of claim 1, wherein, ​ 7. The tobacco moisture detection device of any one of claims 1-6, wherein, ​ 8. The tobacco moisture detection device of any one of claims 1-6, wherein, ​

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